US1037748A - Wheel-rim-jointing machine. - Google Patents

Description

G. A. ENSIGN.

WHEEL RIM JOINTING MACHINE.

APPLICATION FILED un. e, 1912.

1,087,748. Patented sepn.3,1912.

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-. ATTUHNEYS COLUMBIA PLANOGIAPH 50.. WAIHINGTGN. D. C. l

G. A. ENSIGN. WHEEL EIM JOINTING MACHINE.

APPLICATION FILED APR. 6, 1912.

1,037.748. Y Patented sept.3,1912.

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A TTOHNEYS COLUMBIA PLANOGRAPN C0.. WASHmu'roN. D. cr

G.' A. ENSIGN. WHEEL EIM JOINTING MACHINE.

APPLICATION FILED APR. 6, 1912.

1,037,748. A f l Patented sept.3,1912.

4 SHEETS-SHEET 3.

G. A. `ENSIGN.

WHEEL RIM JOINTING MACHINE.

APPLICATION FILED APR. 6, 1912.

Patented Sept. 3, 1912.

4 SHEETS-SHEET 4.

ATTORNEYS UNITED STATES PATENT oEEioE.

GEORGE A. ENSIGN, OF DIIEIZEIANCE OHIO, kASSIGNOR TO DEFIANCEMACHINE WORKS,

OF DEFIANCE, OHIO.

WHEEL-RIM-JOINTING MACHINE.

Specification of Letters atent.

Patented Sept. 3, 1912.

Application led April 6, 1912. Serial No. 688,881.

The invention relates to woodworking machines, and its ob]ect is to provide a new and improved wheel rim `iointing or truing machine more especially designed for ointing or truing one side of the wheel lrim stock to render the said side true with the inner surface of the stock so that any inequalities due to bending or shrinkage are compensated for and the stock is provided with a true working surface to permit of subsequently feeding the stock correctly through a planer to insure the perfect formation of perfect wheel rims.

For the purpose mentioned use is made of a revoluble cutter head having cutting edges extending` in the same plane, a rim stock support having movement toward and from the said cutter head and provided with spaced supporting means arranged at a right angle to the face of the cutter head and adapted to support the rim stock at the inner surface and at opposite sides thereof, and a presser device adapted to engage the rim stock eXteriorly at the middle thereof, that is, approximately at a point midway between the supported points so vthat the rim stock is equalized and one side thereof is presented to the cutters of the cutter head to reduce the said side perfectly true relatively to the inner face of the rim stock.

A practical embodiment of the invention is represented in the accompanying drawings foiiniiig a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a perspective view of the wheel rim jointing or truing mechine; Fig.

2 isa cross section4 of the same; Fig. 3 is al sectional front elevation of the same on thel line 3M?) of Fig. 2; Fig. 4 is a sectional plan' view of the same on the line 4 4 of Fig. 3; Fig. 5 is a sectional front elevation of the same on the line 5-5 of Fig. 2; Fig. f5 is a front elevation of the saddle and the supporting plates arranged for truing short stock on both sides to reduce the stock to a predetermined width; Fig. 7 is a plan view of the same; and Fig. 8 is an enlarged sectional elevation of the same on the line 8 8 of Fig. 7. l

Vheel rim stock after being bent into approximately seinicircular shape by a suitable bending machine is liable to become twisted or otherwise distorted -owing to the tendencyT of thestock to straighten out or to Ashrink or to do both. The truing or jointing machine presently to be described in detail is usedffor equalizing the kdistorted rim stock `and to provide the same with a working side which has been reduced so as to be true to the inner surface of the stock so that the rim stock can subsequently be fed along the said working side through a rim planer and through other machines to ultimately insure the production of accurate wheel rims.

The improved wheel rim ointing or truing machine is mounted on a suitably constructed frame A. in which is journaled a cutter head spindle B carrying a cutter head C provided at its face with radially-disposed cutters G, the cutting edges of which extend approximatelyin the same vertical The cutter head spindle B is proplane. vided with fast and loose pulleys D connected by a belt with other machinery for imparting a rotary motion to the spindle B and the cutter head C, the belt being adapted to be shifted from the fast to the loose pulley and vice versa by a suitable belt shifter E under the control of the operator and mounted to swing on the frame A.

The rim stock F bentinto approximately semicircular shape and of a width for producing a number of wheel rim sections is placed with its inner surface on spaced supporting plates Gr and Gr arranged parallel to each other and standing at a right angle to the face of the cutter head C, andthe top of the rim stock F is enga ed by a presser device, preferably in the orin of an arm H, bearing down on the top of the rim stock F at a point approximately intermediate the supported points of the innervface of the rim stock F so that the rim stock F is practically equalized on the supporting plates Gr and Gr and consequently the inner surface of the rim stock is in a true position relative to the face of the cutter head C so that when the rim stock F is fed against the knives C the latter trim the corresponding side of the rim stock directly through to the inner surface thereof thus providing a true workl 0 ing surface to permit of subsequently feeding the stock correctly through a planer to insure the formation of accurate wheel rim sections.

The supporting plates G and G are preferably provided with roughened faces and are held in grooves formed in blocks l'. and I secured by bolts l2 to the top of a slide J provided at the under side with bearings J mounted to slide on guideways K on top of a saddle K provided at its rear with a bearing K2 (see Figs. 2 and 4) engaging a guideway A, formed on the main frame A. The blocks I and l are adjustable toward or from each other on the top of the slide J and the blocks are for this purpose provided at their under sides with tongues l2 engaging a corresponding groove J2 on the top of the slide J see F iO. 2), and the bolts I2 extend through elongated slots I4 in the said blocks (see Figs. l and 7). By the arrangement described the supporting plates G and G can be adjusted to accurate position on opposite sides of the longitudinal center of the machine.

In order to feed the rim stock F in engagement with the cutting edges of the cutters C the following arrangement is made: On the under side of the slide J is secured a rack J3 in mesh near its outer end with a pinion JA1 secured on a shaft J 5 liournaled in suitable bearings arranged on a bracket K3 bolted or otherwise fastened to one side of the saddle K. A handle JG is attached to the outer end of the shaft J 5 to permit t-he operator to impart a turning motion to the shaft J 5 and thus cause the pinion J 4 to impart a traveling motion to the rack J 2 and consequently to the slide J to feed the stock F toward the face of the cutter head Cl or away from the same after the inner side of the stock F is'reduced by the action of the cutter C.

The saddle K is adapted to be raised or lowered according. to the diameter of the rim stock to be trued. For the purpose mentioned the under side of the saddle K is provided with a bearing K3 (see Figs. 2 and 3) in which is mounted to turn the head L of a vertical screw rod L screwing in a nut L2 mounted to turn in a bearing A2 bolted or otherwise secured to the main frame A, anden the said nut L2 is secured a gear wheel L2 in mesh with a pinion L4 attached to the inner end of a horizontallydisposed shaft L5 journaled in the bracket A2. rlhe outer end of the shaft L5 is provided with a hand wheel LG under the control of the operator to permit the latter t-o turn the shaft L5 with a view to rotate the nut L2 and thus cause an up or down move- 4ment to the screw rod L and consequentlyv to the saddle K according to the direction in which the hand wheel LG is turned at the time.

The clamping or presser arm H is provided at its forward end with a roughened surface H adapted to contact with the top of the rim stock F supported on the plates G and G. The arm H is screwed or otherwise secured on the upper threaded end H2 of a post H3 mounted to slide up and down in a bearing J l forming part of the slide J and the said post H3 is provided with a keyway Hat engaged by a key Js held on the bearing J 7 (see Fig. 7)y so that the post H3 is held against turning but is free to slide up and down in the bearing J 7. The post H3 is provided with a rack H5 in mesh with a gear wheel N secured on a shaft N journaled in va bearing J 9 forming part of the bearing JT,a11don one outer end of the shaft N 1s secured a handle N2 adapted to be taken hold of by the operator for imparting a turning motion to the shaft Nl so as to cause the gear wheel N to move the rack Hs and with it the post H3 and the arm H up or down according to the forward or backward swinging motion given to the handle l 2..

By the arrangement described the presser arm. H can be moved downward in firm cona turning motion to the shaft N so as to equalize the same on the supporting plates ASio G G at the same time securel clam nino' 7 b the rim stock F in position to the rim stock in place while bodily feeding the same to the cutters C of the cutter head C. rlhe presser arm H is adapted to be locked in the adjusted position by the use of Y a locking bolt O mounted to slide in a bearing N3 held on the handle N2 and the said locking bolt t) is adapted to engage a toothed w'heelO secured on the bearing J 2 as plainly indicated in Fig. 5. The upper end of t-he bolt O is connected with a hand lever 02 fulcrumed at O2 on the handle N2 and adapted to be actuated by the operator to move the bolt O in or out of engagement with the toothed wheel O. that the bolt O is withdrawn from the toothed wheel O during the time a swinging motion is given to the handle N2 when the handle has been moved to the desired securely hold 2 ioo los

l t is understood position, that is, at the time the presser arm Y H is 1n engagement with the rim stock F then the lever O2 is caused to move the bolt O downward into engagement with the fixed toothed wheel O to lock the parts in position.

The operation is as follows: The approximately semicircular rim stock F is placed in position on the supporting plates G and G at the time the presser and clamping arm H is in a raised position and then the operator unlocks the handle N2 and swings the same in the direction of the arrow a so as to cause the arm H to move downward into contact with the top of the rim stock F to exert a downward pressure on the said stock and thus equalize the same on the supporting plates G and G. It will be noticed that by the arrangement described the rim stock F is securely clamped in position on the supporting plates G and G and the arm H is locked against movement for the time being by the bolt O engaging the toothed wheel O. The operator now imparts an upward swinging motion to the handle JG so that the pinion J4 imparts a traveling motion to the rack J 3 and consequently to the slide J to move the supporting plates G and G, the arm H and the rim stock F inwardly toward the face of the' cutter head C so that the cutters C finally cut the inner side of the rim stock F to reduce thesame absolutely true to the inner surface of the rim stock and when this has been done the handle Jy is swung downward to retard the slide J and the parts carried thereby, after which the handle N2 is unlocked and swung in the reverse direction of the arrow a to move the arm H upward out of engagement with the rim stock F which can now be removed from the machine and replaced by another one to be trued.

When it is desired to true short rim stock and on both sides, the following arrangement is made, special reference being had to Figs. 6, 7 and 8: The supporting plates G and G instead of being attached to the outer ends of the blocks I and I are I fastened in grooves on the top of the said blocks I and I and on the outer ends of the plates G and G are secured stops P by the use of set screws P, and each stop is provided with a toothed bar P2 fitting into the upper toothed face of the corresponding plate G or G, the bar being pressed firmly in place by a set screw P3, as plainly indicated in Fig. 8. The rim stock F is placed in position on the plates G, G and clamped thereto by the use of the clamping arm H, as previously explained, and then the slide J is moved toward the face of the cutter head C so that the cutters C reduce one side of the stock F to the inner surface of the rim stock F. Vlhen this has been done the slide J is returned and the arm H is raised to rpermit of reversing ythe stock F on the plates G and G and abutting the trued side of the rim stock on the stops P, after which the arm Hl is moved downward to clamp the rim stock F again in position. rlhe slide J is` now again moved toward the face of the cutter head C so that the cutters C reduce the other side ofthe rimy stock true to the opposite side and to the inner surface of the rim stock. A stop screw Q screws in the forward end of the saddle K and is adapted to be engaged by the hub of the wheel O to limit the movement of the slide J toward the face ofthe cutter head C so that the stock F is reduced to a predetermined width. After the rim stock F has been trued at both sides relative to the inner surface of the stock, the latter is removed from .the machine and another one placed in position thereon, and the above-described operation is repeated to reduce bot-h sides of the stock true to the inner surface thereof and to a predetermined width.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a wheel rim truing machine for truing one side of the rim stock relative to the inner face thereof, the combination with a revoluble cutter head having cutting edges extending in the same plane, of a rim stock support having movement toward and from the said cutter head and provided with spaced supporting means at a right angle to the face of the said cutter head and adapted to support the rim stock at the inner surface and at opposite sides thereof, and a pressure device adapted to engage the rim stock exteriorly at the middle thereof.

2. In a wheel rim truing machine for truing one side of the rim stock relative to the inner face thereof, the combination with a revoluble cutter head having its cutting edges extending in the same plane, of a saddle provided with spaced parallel supports ata right angle to the said plane and adapted to support the rim stock at the inner surface and at points between the ends thereof, a clamping device adapted to enga-ge the top of t-he rim stock at a point approximately half way between the supported points, the said clamping device being adjustably mounted on the ysaid saddle, means for raising and lowering the said clamping device on the said saddle, and means for moving the said supports toward and from the said cutter head.

3. In a wheel rim truing machine for truing one side of the rim stock relative to the inner face thereof, the combination with a revoluble cutter head having its cutting edges extending in the same plane, of a saddle provided with spaced parallel supports at a right angle to the said plane and adapted to support the rim stock at the inner surface and at points between the ends thereof, a clamping device adapted to engage the top of the rim stock at a point approximately half way between the supported points, thek said clamping device being adjustably mounted on the said saddle, means for raising and lowering the said clamping device on the said saddle, means for moving the said supports toward and from the said cutter head, and means for raising and lowering the said saddle independent of the said means for raising and lowering the said clamping device. f

4l. In a wheel rim truing machine for truing One'end of the rim stock relative to the inner face thereof, the combination with a cutter head provided on its face with a cut-ter, the edges of which extend approxi' mately in the same vertical plane, of a saddle in front of the face of the cut-ter head, means for raising and lowering the said saddle, spaced supporting plates on the said saddle and standing at a right angle to the face of the said cutter head, the said supporting plates being adapted to support the rim stock at the inner face and adjacent the ends thereof, a clamping arm mounted on the saddle and adapted to engage the rim stock exteriorly and at the top thereof at a point approximately midway between the points of support of the rim stock, means for moving the said. clamping arm up and down independent of ftlhe up and down movement given to the said saddle,l and means for moving the said supporting plates on the saddle toward and from the face of the said. cutter head.

5. 1n a wheel truing machine for truing one side of the rim stock relative to the inner face thereofg the combination with a revoluble cutter head provided at its face with cutters having their cutting edges extending approximately in the same vertical plane, of a saddle in front of the said cutter head, means for raising and lowering the said saddle, a slide mounted tov slide on the said saddle7 means for moving the said slide toward or from the face of the said cutter head, supporting' platesheld on the sides of the said slide and adapted to support the rim stock at 'the inner face thereof7 a presser arm adapted to enf; ce the top of the rim stock and provided with a vertical post mounted to slide up and down on the said slide, and manually-controlled means engaging the said post for moving the latter up and down independent of the said means for raising and lowering the saddle.

6. A wheel rim truing machine provided wit-h spaced parallel supporting plates adapted to be engaged by yhe inner surface of a rim stock, and a pressure device adapted to engage the rim stock exteriorly at a point half way between the points of support of the rim stock on the said supporting plates, and means for moving the said pressure device in and out of engage ment with the rim stock on the said supporting plates.

7. A wheel rim truing machine provided with a saddle having guideways, a slide mounted to slide on the said guideways and provided with spaced supporting plates for engagement by the inner surface of a rim stock to be trued, a clamping arm mounted to move up and down on the said slide and adapted to engage the top of the rim stock,

and manually-controlled means for moving the said clamping arm up and down.

8. A wheel rim truing machine provided with a saddle having guideways, a slide mounted to slide on the said guideways and provided with spaced supporting plates for engagement by the inner surface of a rim stock to be trued, a clamping arm extending horizontally and adapted to engage the rim stock exteriorly at a point half way between the points of support of the rim stock on the said. supporting plates, a post provided with a rack and carrying the said clamping arm, the said post being mounted to slide up and down on the said slide, a transverse shaft journaled on the said slide, a pinion on the said shaft engaging the said rack, and a handle Yon the said shaft for turning the latter to raise and lower the said post and its arm.

9. A wheel rim truing machine provided with a saddle *having guideways, a slide mounted to slide on the said guideways and provided with spaced supporting plates for engagement by the inner surface of a rim stock to be trued, a clamping arm extending horizontally and adapted to engage the rim stock exteriorly at a point half way between the points of support of the rim stock on the said supporting plates, a post provided with a rack and carrying the said clamping arm, the said post being mounted to slide up and down on the said slide, a transverse shaft journaled on the said slide, a pinion on the said shaft engaging the said rack, a handle on the 4said shaft for turning the latter to raise and lower the said post and its arm, and a lockingdevice for locking the said arm in the adjusted position. y

l0. A wheel rim truing machine provided with a saddle having guideways, a slide mounted to slide on the said guideways and provided with spaced supporting plates for engagement by the inner surface of a rim stock to be trued, adjustable stops secured to the said supporting plates, limiting means between the saddle and the said slide to limit the feeding movement of the latter, a clamping arm mounted to move up and down on the said slide and adapted to enthe top of the rim stock, and manually-controlled means for moving the said clamping arm up and down.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE A. ENSIGN. Witnesses F. E. HALL, E. H. FREDERICK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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