US1584796A - Resawing machine - Google Patents

Description

May 18 1926.

. J. A. NEAL RESAWING MACHINE Filed March 5, 1925 5 Sheets-Sheet 1 L mq;

3140mm oz k (I awe-H www I mm; a

May 18 1926.

J. A. NEAL RESAWING MACHINE Filed March 5, 1925 5 Sheets-Sheet 5 May 18 1926. 1,584,796

J. A. NEAL 'RESAWING MACHINE Filed March 5, 1925 5 Sheets-Sheet 4 May 18 1926. v 1,584,796

J. A. NEAL RESAWING MACHINE Filed March 5, 1925 5 Sheets-Sheet 5 IIIIIHII- v position.

Fetented may 18, 1926.

JOSEPH A. lines, or name, en ieeite, ASSIQLTCE one-near BER COMPANY, or MCBILE; ALARM re, A. confronts ION or '30 STOVER LUM- ALABAMA.

nnsewino MACHINE.

Ap lication flied. March 5, 1925'. Serial no. 13,291.

I This invention relates to sawing machines, a d more particularly to machines for re- 1 ving lumber as it leaves the planing niill.

One object of my present invention is to improve the COIlStiUCdOn and increase the eflioiency and durability of reserving inachines such as shown and described in my Patent No. 1,3 LOQ86, dated May 18, 1920, for a twin circular resawing machine.

Another object of the invention is to provide a resawing inachine having twin cirlar saws niou'nted on a rocking or tilting frame extending across a main supporting frame and provided with means for adjustand securingjthe tilting frame and saws L 'ent positions at an angle to the main firm i so to adapt thesaws to cut the stool on a bevehior at any desired angle to a horizontal plane, together with means for changing the angular position of the saws at will independently of the simultaneous adjustment provided by the tilting fraine.

Another object is to provide a tilting sawearring fraine mounted on a main supportfraine with means for adjusting and securing tlie tilting frame and saws thereon in different positions at an angle to a hori- Zontal plane, so as to adapt the saws to cut the steel: on a hevel without changing the sition of the saws relative to the frame on which they are mounted, together With,'

means for changing the angular position of the saws each independently of the other and independently of the adiustnient' provided by tlie tilting frame, and also means for adjusting the saws vertically and laterally and securingthem at different heights and at different distances apart for cutting material of different thicknesses and idths. A further object is to provide a machine of the character referred to with simple and ,i'ticient means for adjusting the saws laterally and at an angle to a horizontal plane, holding them rigidly in different posi- H-ions and to prevent orreduce to a minimum danger of accidental displacement or snifting' of the position of either saw when once adjusted and secured in the desired Other ooiect s are to provide inja resawii g machine a rigid and durable frame structure of both the main supnorting; frame and he t fraine inonnted thereon, together r ed mandrel and angularly aidsupporting names with he talren as apart of this specification, and

their pointed out in the claims at the end of the description. i

In said draivings, Fig. 1 is a plan View of a twin circular resawinp; machine embodying my. invention; r

y 2 is a rear elevation of the same partly broken away; I

3 is a vertical. transverse sectional eleva tiodon a slightly enlargcds cale over that shown. in Figs. 1 and 2, the section being taken on the line 3 3 of 1, looking in the direction of the arrows, and the auxiliary frame in adjusted position being indicated in dotted lines; v

4 is a vertical longitudinal sectional eleyatiou taken on aline about midway of the length. of the machine franie on the line l:fl: of Fig. 1, substantially at right angles to the section shown in Fig. 3;,

Fig. 5 is a side elevation of the machine; I 6 is a detail sectional plan view of the lower frame bar of thetilting saw-carrying frame and its connections with the main sup-v porting frame i Fig. 7 is a detail vertical sectional elevation of one of the mandrel-supporting frain es and vertical shaft bearings associated therewith, showing the connections between the same and the tilting frame; and

Fig. 8 is a side elevation, partly in section of said mandrelsupporting franue and shaft bearings and connections between the same and the tilting frame. A

Referring to said drawings, in which the same reference letters are used to denote corresponding parts in different views, the letter A denotes metal plates forming; the front and rear sides of the main. supporting franie, and B the] sides or ends thereof, which arelrectangular in fornncne being! substantially counterpart of tl e'other, and said sides and ends are 4 secured. together in bon like form;- at uieyidur. ners thereof. The front rea'r side plates Ahay i iii weirdly turned, upper and lowerhoi'isontal a' and c connecting vertilepf idiiig tri'an uses a western e will said end flanges; the latter being suitably aperturcd to receive fastening bolts inserted through said apertures and registering apertures in opposite ends of said sides or ends B, as indicated in dotted lines in li ies. 1 and wherebv the four sides are rigidly secured together. Said sides or ends B have outwardly extending horizontal top and bottom flanges 7) and b and intermediate spaced flanges 7F, ant also vertical spaced flanges b. at each end, and intermediate v rtical spaced flanges Z)", connecting the top and bottom and intermediate horizontal flanges. The top flanges Z) terminate at their junction with the intermediate vertical flanges 7)" and the metal plate above the intermediate horizontal flanges and between the intermediate vertical flanges is cut away so as to provide vertical open-ended gaps or guide-ways on opposite sides of the main frame for the heads C on opposite ends of an auxiliary tilting" frame on which are mounted circular saws D. The tilting frame is n'iounted intermediate its ends on a transverse beam or bar E. which has reduced and rounded ends fitted in bearings therefor in the front and rear sides of the main supporting frame so as to permit a rotary to and fro n'iovement of said beam in its bearings and adapt it to serve as a rock-shaft on which the auxiliary frame is rockably supported: said bearings being formed integrally with said rontand rear side plates in the form of hollow projections or bosses about midway thereof, as shown in 2 and f of the drawings. Said auxiliary frame has upper frame members F and F one of which is arranged slightly ahead of the other and which are preferably round and have reduced end portions inserted in holes or sockets provided therefor in the rock shaft E, at one end, and in the beans C at the other end. or at opposite ends of the tilting frame; the free ends of said reduced end portions of said frame members being threaded and haying nuts screwed thereon for securing thenrin place. as Sl10\ n in Fig. 3. The rock-shaft or cross-bar E is preferably of meal and formed or provided with a depending member E about midway thereof and with diagonal downwardly and inwardly 'nclined members or braces E thus forming a triangular frame structure or support for the tilting frame. The intermediate upright member E and the diagonal members E are united at their lower ends and merge in or are jointed to a substantially square and flatbottomed foot-plate F", which is bolted or otherwise rigidly secured to a sinr ila 'ly shaped seat about midway of a lowor horizontal frame bar G of the tilting fame. Said bar T has bifurcated or forked ends which fit astride upwardh and outwardly inclined members 72/ of guidebrackets H, secured upon opposite sides of the in in frame; set screws 71. being inserted in the bifurcated ends of the bar G for se curing the ends thereof to the bracket members it, so as to firmly hold the lower part of the tilting frame in, a fixed position either horizontally or at any desired angle to the main frame. The heads C to which the outer ends of the horizontal frame members or guide-bars F and F of the tilting frame are secured are preferably formed integrally with depending, inwardly inclined legs I, of channel iron or U-shaped form in cross-section. which connect said heads and the upper frame. members of the tilting frame with the outer end-portion; of the lower horizontal frame bar G, the latter being of channel iron form in cross-section or having grooves in its upper surface on opposite sides of its center to receive and guide means whereby the lower ends of the mandrel-fumes may be adjusted laterally and firmly secured in different positions. About midway of the bar G there is an oil'- sct portion rith a flat top forming the seat Fig. (l, which is suitably apertured at the four corners thereof for attachment to the foot-plate E, by bolts and nuts. This construction places one half of the bar G slightly in advance of the other half and pzrallel with the upper guide and frame member of the tilting frame on the same side of the machine. while the other half is arranged parallel with the other upper f 'ame member on the opposite side of the machine, thus adapting said upper members F and F and lower members G to Support and hold the mandrel frames in proper alinement with provision for lateral adjustment thereof along the bar G and guidelars F and F for adjusting and securing the saws at different distances apart and at different angles, to adapt the saws to cut the stock on a bevel.

a or the purpose of adjusting and set-urine the t ltine' frame in (liifHC-Iii positions. to

cha. the angle of the saws. the heats (I are eath formed or provided with a laterally projecting boss c having an oblong openended SOClZOt therein to rrccive a ball or spherical head on the upper end of an adjusting sc ew K. thus forming a uni ersal joint: the screw brine; passml through a threaded aperture in a hit; K projecting from one side ll of the n frame. so that th: adjacent end of the tilting frame may be raised or lowered b turnine the screw to the right or left. The lower end of for the screw may be of pol gonal form applying thereto a wrench or other tool to serve a handle for turning it. To compensate for the change of position of the boss hating' the sccltet in which the spherical head of the screw works when the. adjacent end of the tilting frame raised or lowereth ill) 772 near its outer end which fits in a recess in the outer side of a cover plate i secured on the lower end of the mandrel frame by means of set screws p passing through an outer plate yr" placed between the heads of the screws and said cover plate and through apertures in the cover plate and screwed into sockets or holes in the mandrel frame. The outer plate 72 overlies the recess in which the collar 7) is fitted and the outer end-portion of the screw passes through a hole in said outer plate and has a lock nut 71" thereon, bearing against the outer side of said outer plate so as to prevent endwise movement thereof when the screw is turned to move the locking device into or out of binding contact with the outer or inner wall of the groove in the frame bar G. The mandrcl-supporting frames have associated therewith suitable bearings for vertical shafts on which the saws D are mounted. a .d for this purpose the lower parts thereof and also their upward extensions are eacn form d or provided with a semi-circular rc- (W and laterally projecting apertured lugs o for attaching thereto a sin'iilarlv recessed cover plate the upper one of which is denoted by the letter Q and the lower one by the le ter r These cover plates have laterally projecting apcrtured lugs thereon through which so screws are inserted and screwed into sockets or holes in the lugs 0 on the mandrel. frame for securing the two parts together. The cover plates are hollow, thus ln'oviding each with an oil chamber having a vertical oblong slot.- at its upper end in communication with the bearing surfaces formed. by the confronting semi-circular rccesses in the mandrel frame and attached cover plates, and each cover plate is provided with an inlet pipe through which oil or other lubricant is itroduced for lubricating the shaft bearin s, Sleeves R and R are placed around the vertical shaft within the openings formed by the scn'ii-circular rcccsscs of the upper and lower hearing incinbers and oblong slots are formed therein in communication with the oil chambers in the cover plates. through the oblong slots in the upper ends of the latter. Anti 'i'riction bearings are provided for the lower ends of the vertical shafts, comprising a cup-like housing S secured on the underside of the lower end of each mandrel frame by means of belts or screws passing through apertures in an. annular tlauge at the upper end of the ousing and screwed into sockets or hol i .e mandrel frame: said housings containing 1 referahlv well-ltiown types of annular end- \fiilIL-Ii hall hear s placed between a bearlug ring and a plate or disk 8 within the horsingi: the vertica shaft having a reduced end portion which fits in the ring a,

centering the shaft thereon. An adstingbolt S is screwed into a. threaded aperture in the bottom or lower end of the housing and bears against the plate or disks a so as to provide for slight vertical adjustment of the shaft by ti'irning said belt, which has a lock nut s thereon adapted to bear against the lower end of the housing and prevent the bolt from turning without first. loosening the nut.

The transverse beam E. as shown in lfij'j. at, has machine-faced portions E on opposite sides thereof formed with oblong slots therein to receive fastening bolts for attaching thereto separating devices such as are shown in Fig. 1 and which are fully illustrated and described in my eo-pending application Serial No. 13.293. filed March 5, 1925, and are not claimed herein, so that further illustration or description thereof herein thought to be unnecessary; one of said devices being indicated in dotted lines in Fig. l and the other on the rear side being removed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A resawing machine comprising a main supporting frame having vertical guideways on opposite sides thereof, an auviliarv frame supported intermediate its ends on a rockshaft journaled in bearings carried by said main frame and having its ends slidably fitted in said guideways; said auxiliary frame extending across said main frame substantially at right angles to said rock-shaft and having twin circular saws mounted thereon, one at each side of said rock-shaft, and means for tilting said auxiliary frame and securing it in different positions at an angle to a horizontal plane, so as to adapt the saws to cutthe stock on a bevel.

2. A resawing machine comprising a main supporting frame having vertical guideways on opposite sides thereof, an auxiliary frame supported intermediate its ends on a rocle shaft journaled in hearings on the front and rear sides of said main frame and having its ends slidably fitted in said guidewavs; said auxiliary frame having laterally adjustable twin circular saws mounted thereon, one at each side of said rock-shaft, and means for tilting said auxiliary frame and securing it in different positions at an angle to a horizontal plane, so as to adapt.- the saws to cut the stock on a bevel.

A renewing machine comprising a main supporting frame having vertical guidewavs on opposite sides thereof and shaft hearings on its front and rear sides, an auxiliary frame supported about midway its length on a rock-shaft journaled in said bearings and having its ends slidablv fitted in said guideways, inandrel-supporting frames mounted on said auxiliary frame, one at each side of said rock-shaft and carrying twin circular saws, one arranged slightly in advance of cut positions, fora the other, means for tiltingand securing saidauxiliary frame in different positions so as to adapt the saws to cut the stock on a bevel, and means for adjusting said mandrel-frames laterally and securing them in different positions, varying the distance saws carried by said mandrel-frames, one

arranged slightly in advance of the other, means for tiltlng and secur ng saidauxil ary frame in different positionsso as to adapt the saws to cut the stock on a bevel, means for. angularly adjusting the saw 'mandrels in the plane in which their carrying franie is rockably adjustable, and riieai s for adjusting said mandrel-frames laterally and securmg them in different positions, for varying the distance between the saws.

5. A resawing machine comprising a main supporting fran e having vertical guideways on opposite sides thereof and shaft beazings on its front and rear sides, an auxiliary frame supported about midway its lengthon a rock-shaft journaled in said bearings and having its endsslidably fitted in said guideways, mandrelesupporting frames mounted on said .auniliary frame ;one at each side of said rock-shaft, verticallyadjustable twin circular saws carried by said mandrelframes, one arranged slightly in advance of the other, ineans for adjusting said mandrelfranies laterally and securingltl em in differ- I ying the distance between the saws, and means for tilting and locking said auxiliary frame in different posit-ionsso as to adapt the saws to cut the stock on a bevel.

.6, A resawing machine comprising a main supporting fraine havingvertical guideways on opposite sides thereof and shaft bearings on its front and rear sides, an auiiiliary frame rockablysupported about midway its lengthen a rock-shaft journaled in said bearings and having its ends slidably fitted in said giiideways, laterally adjustable nandrel s'upporting frames mounted ,on said auxiliary frame, one at each side of said rock-shaft, vertically adjustable" twin cirl cular saws carried said mandrel-frames, one arranged slightly in advance of the other, means for tilting; and securing said auxili ry frame indifferent inclined posison's so as to adapt the "saws to cut the stock on bl v h and means for angularly adjustsaw mandrels in the plane in which their carrying frame is rockably adjustable and securing them in different inclined pos tions.

7. A resawing machine comprising a main supporting frame having vertical guideways on opposite sides thereof, an auxiliary frame i'oclrably supported intermediate its ends on a rock-shaft journaled in bearings on the front and rear sides of said main frame and having its ends slidably fitted in said guideays; said auxiliary frame having upper and lower guide-bars to which are slidably secured the upper and lower ends of laterally and angular-1y adjustable mandrel-supporting frames carryingtwin circular saivs, one at each side of saidrock-shaft, and means for tilting" said auxiliary fame andsecnring it in different positions an angle toahorizontal plane, so as to adapt the saws were the stock on a bevel.

' 8. A resawing machine comprising a main supporting frame having vertical guideivays onopposite sides thereof, an auxiliary frame supported intermediate its ends on a reelshaft jocurna'led in hearings ,on the front and rear sides of said mainframe and having ends slidably fitted in said guideways; said auxiliary frame having upper and'lower guide bars to which are slidably secured the upper and lower ends of laterally adjustable nia1idrel-supporting frai nes carrying twin circular saws, oneat each side of said rocl shaft, and means at opposite ends of said auxiliary frame for tilting and securing'it in difierent positions at an angle to a horizontal plane, so as to adaptthesaws to cut thestock on a bevel, together with adjustable means forseouring opposite ends 'of said lower guide bar to op msite sides of sait main frame.

9. A resawing machine comprising a main supporting frame having vertical guideways on opposite sides thereof, an auxiliary frame rockably supported intermediate its ends on a rock-shaft journaled in hearings on the front and rear sides of said main frame and having its ends slidably titted in said guidev-ays; said auxiliary fra ne haupper and lower guide-bars ca r V lly adjust-able inandrel-supporting frames and twin circular saws mounted on mandrels journaled in vertical shaft hearings on said mandrel frames, one at each side of said rock-shaft, means for tilting" said auxiliary frame and securing it in different positions at an angle to a horizontal plane, "so a to adapt the saws to cut the stock on a bevel, and means for angularly adjusting and securing the saw mandrels in theplane in which their carrying frame is roclrably adjustable.

' 10. The combination, in a resawing machine, of a main supporting frame, anlauxih iary frame rockably supported intermediate its ends on said main frame and carrying mandrel-supporting frames ,ach having a circular saw mounted thereon; sz id saws being mounted on vertical shafts journaled in upper and lower bearings carried by said uuindrel-frames, means for tilting said an iliary frame and securing it in different positions at an angle to a horizontal plane, so as to adapt the saws to cut the stock on a bevel, and means for angularly adjusting the saw mandrels in the plane in which their carrying frame is rockably adjustable.

11. The combination, in a resawing machine, of a main supporting frame having vertical guideways on opposite sides thereof and oppositely disposed shaft bearings on its other two sides, an auxiliary frame rockably supported about midway its length on aroclrable beam having round ends journaled in said bearings; said auxiliary frame carrying mandrel-supporting frames each having a circular saw mounted thereon and having its ends slidably fitted in said guideways, and means for tilting and securing said auxiliary frame in different positions to adapt the saws to cut the stock on a bevel; said means comprising a longitudinally vertically adjustable screw having a slidable balland-socket-joint connection with one end of said auxiliary frame to adapt the screw to maintain a perpendicular position relative to the tilting frame when the latter is adjusted and secured at different angles to said main frame.

12. A resawing machine comprising a main supporting frame having vertical guideways on opposite sides thereof and oppositely disposed shaft hearings on its other two sides, an auxiliary frame supported about midway its length on a rock-shaft journaled in said bearings and having its ends slidably fitted in said guideways, and means for tilting and securing said auxiliary frame in different positions to change the angle of the saws relatively to its supporting frame; said tilting and securing means comprising a hollow boss or socket on the auxiliary frame having an oblong slot therein and a longitudinally vertically adjustable screw supported on said main frame and having a ball on its upper end connecting a neck portion thereof with the body of the screw; said ball being arranged within said socket, and said neck slidably engaging said slot; said auxiliary frame carrying mandrel-supporting frames having twin circular saws mounted thereon.

18. The combination, in a resawing machine, of a main supporting frame, an ant:- iliary frame rockingly supported on said main frame, said au:-;iliary frame carrying mandrel-supporting frames each provided with shaft bearings. a vertical shaft journaled in said bearings and having a circular saw mounted thereon, said n'iandrel frame having a pivotal connection at its upper end with said auxiliary frame and having means for adjusting and securing its lower end at difierent points along the length of a lower frame bar of saio auxiliary frame, whereby the mandrel-frame may be adjusted and secured in a slanting position to change the angle of the saw, and means for tilting said auxiliary frame and securing it in different inclined positions to change the angle of the saws.

H. In a resawing machine, a mandrel-supporting frame carrying upper and lower shaft bearings a vertical shaft journaled in said bearings and having a circular saw mounted thereon, said mandrel-frame having be adjusted in the plane in which its carryd ing frame is rockably adjustable and secured in a slanting position to change the angle of the saw.

15. In a resawing machine, a mandrel-supporting f 'ame carrying upper and lower shaft bearings, a vertical shaft journaled in said bearings and having a circular saw mounted thereon, said mandrel-frame having a pivotal connection at its upper end with a frame structure rockably supported intermediate its ends on a main supporting frame and having a lower frame bar adjusably cured to said main frame and means for adjusting and securing the lower end of said mandrelfran1e at different points along the length of said lower frame bar of said frame structure, whereby the mandrel-frame may be adjusted in the plane in which its carrying frame is rockably adjustable and secured in a slanting position to change the angle of the saw, and a vertically adjustable supportfor the lower end of said shaft whereby the saw may be raised or lowered and secured at different heights.

16. In a resawing machine, the combination with a main supporting frame, of an auxiliary frame roclringly supported intermediate its ends on said main frame, said auxiliary frame having upper and lower guide bars arranged in substantially the same vertical plane at each side of the longitudinal center of said main frame, the lower guide bar having its ends angularly adjustably secured to said main frame and mandrelsupporting frames an ularly adjustably secured to said upper and lower guide bars for changing the angle of the saws mounted thereon and carrying upper and lower shaft bearings and twin circular saws mounted on vertical shafts journaled in said bearings,

lid]

and means for tilting said auxiliary frame and securing it in different positions to change the angle or the saws and adapt them to cut the stock on a bevel.

17. In a ire-sawing machine, laterally adjustable mandrel-supporting frames slidahly mounted on an upper frame bar of a frame structure extending across a main supportingframe, and means for ae'ijustinp; and securing said mendrelirames at different distances apart; said means comprising an adjusting screw and a locking rod passing through parallel openings in a head portion or block carried by each mandrel-frame, said screw also passing through a nut non-rotatahly confined in a recess in said block, Wnerehy the bloekis caused to travel with tile nut when the screw is turned, and set screw inserted in a hole in said block and having a plain inner end portion which extends across the opening through Which said rod passes; said rod being flattened on one side so as to pro vide a clearance between it and the set screw when said flat side is turned toward the screw, thus releasing the sliding head or JOSEPH A. NEAL.

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