US612847A

US612847A - Machine for upsetting links of sprocket-chains

Info

Publication number: US612847A
Authority: US
Publication date: 1898-10-25
Anticipated expiration: 1915-10-25

Description

No. 612,847. .Patented oct. 25, |898.

l c. HuLTs.

(Application filed June 19. 1897.)

(No Model.)

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l dNTTED STATES PATENT OFFICE.

CHARLES I-IULTS, OF TORCH LAKE, MICHIGAN.

MACHINE FOR UPSETTING LINKS OF SPROCKET-CHAINS.

SPECIFICATION forming part of Letters Patent No. 612,847, dated October 25, 1898.

Application filed June 19, 1897. Serial No. 641,499. (No model.)

To all whom it may concern:

Be it known that I, CHARLES HUL'rs, a citizen of the United States, residing at Torch Lake, in the county of Antrim and State of Michigan, have invented a new and useful Machine for Upsetting the Links of Sprocket- Chains, of which the following is a speciication.

This invention relates to machines for upsetting or shortening the links of sprocketchains; and the object of the invention is to provide a machine of this character which shall be simple in construction, positive in its operation, and which may be so adjusted that the extent of the upsetting or shortening may be accurately predetermined. The links will be upset or shortened without disconnecting them from each other.

With these and other objects in view the invention consists in the several details of construction and combination of parts, as will be hereinafter fully described, and particularly pointed out inthe claims.

In the drawings, Figure l is a plan view of the machine, partly broken away, showing a link in position to be upset. Fig. 2 is a vertical longitudinal section. elevation. Fig. 4 is a vertical transverse section.v Fig. 5 is ahorizontal section through the compressing-die and the cam-shaft which actuates it. Fig. 6 is a perspective view of the testing-plug detached.

Similar reference-numerals indicate similar parts in the several gures.

1 indicates the main body portion of the machine, which will preferably be a heavy plate and be provided with an integral flange 2 of less thickness than the plate projecting from its rear side. This flange is provided with suitable openings 3 for the passage of bolts or screws 4, by means of which it may be secured to a bench or other suitable support. The plate l is provided about midway its length with a recess 5 in its upper face which extends transversely across it and the sides 6 of which are parallel. The plate is also provided with a circular recess 7 on one side of the recess 5, and this circular recess communicates with the recess 5 by means of a passage 8. Near the other end of the plate 1 a recess 9 is formed, one side, 10, of which is parallel with the sides of the recess 5, and

Fig.` 3 is a front` the other side, 1l, inclines inwardly'toward the rear end of the machine. 2 indicates a recess extending longitudinally of the machine between the recesses 5 and 9, and this recess is in alinement with the passage S. The bottoms of all of these recesses and of the passage 8 are level with the upper face of the Iiange 2. l

From the bottom of the plate l and about midway its width a ange 13 projects downwardly, which ange has a central depending portion 14, in which a recess l5 is formed, for a purpose to be hereinafter referred to. Immediately below the circular recess 7 the flange is provided with a circular enlargement 16 and with a transverse slot 17 above the enlargement 16. Alining perforations are formed in the plate l centrally of the circular recess 7 and of thecentral enlargement 16, and in these openings the shaft 18 is journaled. The lower end of this shaft is provided with a lever 19, by means of which it may be rotated in its bearings. Above the bottom of the circular recess 7 the shaft 18 is provided on its periphery with a cam-surface 20, and the shoulder 2l, which is thereby formed on the shaft`l8,`rests on the bottom of thecircnlar recess 7 and holds the shaft in its proper position.

` 22 indicates the compressing-die, which is provided at its rear end with an enlarged annular portion 23, which is perforated to fit over the cam-surface 2O on the shaft 1S. The die 22 is seated in the circular recess 7 and the passage 8, and it is obvious that as the shaft 18 is turned in its bearing the cam-surface 20 will cause the die to reciprocate. The shaft 18 projects above the cam-surface 20 and the die 22 and is supported in a plate 24, which is secured to the plate l and holds the die 22against vertical movement. This plate 24 is provided with a scale 25, and the upper end of the shaft 1S is provided with a hand or pointer 26. pointer will be referred to hereinafter.

In the recess 12 are seated two superposed dies 27, which are free to move longitudinally in the said recess, and in the recess 9 a tapering wedge 2S is seated to engage the rear ends of the dies 27 for the purpose of adjusting them into the desired position. Ordinarily one wedge will be suicient to operate both The function of the scale and IOO dies; but it may sometimes happen that one side of a link will be somewhat longer than the other, and in such event two wedges will have to be used, one for each die 27 in order that one die may be adjusted slightly in advance of the other, so that when the final compression takes place the links will be shortened to dilferent extents in order to make them of equal length. A removable plate 29 is secured to the plate l over the dies 27 and wedges 28 to hold them in position against vertical movement.

The plate l is provided near its front edge with a vertical rectangular opening 30, in which the head 31 of a bar 32 is adapted to work. Near its lower end the bar 32 is pivoted between the spaced ears 33 of a lever 34, and the front ends of the ears are adapted to be engaged in the recess l5 in the ange 13 in order that the bar 32 may be given a vertical reciprocating movement when necessary. The head 3l of the bar is provided with a rectangular opening 35, extending in a direction transversely of the machine, and on its inner face, just above the opening 35, with a short arm 36.

37 indicates a tapering plug, which is preferably rectangular in cross-section, and on one face `of the plug a scale 38 is formed in any suitable manner. The function of this plug is twofold, the rst being to ascertain to what extent the link has become stretched in order that the compressing-die may be adj usted to the proper position before the link is placed between the dies, so that when the cam-surface has acted to its fullest extent upon the link the exact amount of upsetting or shortening will have been accomplished. In order to ascertain the extent of the stretching, the plug is inserted into the link as far as it will go, and the scale will then indicate the amount of the stretching. The scale on the plug will correspond with the scale 25 on the plate 24, and when the amount of stretching is ascertainedby the scale on the plug the shaft 18 will be turned until the pointer 26 is opposite the proper mark on the scale, and this movement of the shaft will have caused the cam-surface 20 to partially act on the compressing-die and advance it a slight distance. This adjustment having been effected the link to-be upset will be placed in position against the operatingface of the compressing-die and the dies 27 `will be forced tightly against the other end of the link by means of the wedge or wedges 28. to accomplish its second function, which is to beinserted through the opening 35 in the head of the bar 32 and between the side plates of the link which is to be upset. The lever 34 is then operated to bring the arm 36 into engagement with the upper side plate of the link, and by maintaining pressure on the lever the links will be prevented from kinking or bending upwardly when the compressingdie is being forced toward the dies 27 in order rlhe tapering plug 37 will then be used to effect the upsetting or shortening of the link.

39 indicates a spring which is designed to return the dies 27 when the wedge 28 is removed. Set-screws 40 may be fitted in the

plates

24 and 29 to engage the respective dies in order to take up any lost motion which may occur through wear. The scale 25 on the plate 24 should be adjustably attached to the plate, and the pointer 26 should be adj ustably connected to the shaft 18, in order that their positions may be changed should it be necessay to do so through any wear of the camsurface or any other imperfection in -the machine.

The links to be upset will be fed in between the dies from the rear side of the machine, and the die-faces will be shaped to correspond with the particular shape of the link to be compressed.

It will be understood that changes in the form, proportion, and minor details of construction may be resorted to without departing fromV the spirit or sacrificing any of the advantages of this invention.

What I claim isl. The combination of dies, movable one relatively to the other, a support or clamp located between said dies substantially in the line of travel, and a presser-foot or plug movable toward and from said support in a transverse direction to said line of travel, substantially as described.

2. In a machine for upsetting or shortening links of sprocket-chains, the combination of a pair of adjustable dies, a compressing-die adapted to move toward or away from the adj ustable dies, a cam-shaft to actuate the compressing-die, a clamping-bar to engage the upper side plate of the link, and a plug adapted to be removably inserted between the side plates of the link, substantially as described.

3. In a machine for upsetting or shortening links of sprocket-chains, the combination of a supporting-plate, a pair of dies supported to slide in said plate, means to adjust and lock said dies in the desired position, a compressing-die supported to slide in said plate toward or away from the other dies, a camshaft to actuate the compressing-die, a bar vertically movable in the plate and provided with an opening in its head, an arm on the head adapted to engage the upper side plate of the link, and a plug adapted to be inserted through the said opening between the side plates of the link, substantially as described.

4. In a machine for upsetting or shortening links of sprocket-chains, the combination of a supporting-plate, a pair of superposed dies supported to slide in said plate, a pair of VWedges to engage the rear ends of the respective dies to independently adjust and lock them in position, a compressing-die to coperate with the superposed dies, and a clamping device to engage the link and prevent kinking during the upsetting of the link, substantially as described.

IOO

IIO

5. In a machine for upsetting or shortening links of sprocket-chains, the combination of a pair of adjustable dies, a compressing-die adapted to move toward or away from the adjustable die, a cam-shaft to actuate the compressing-die, a clamping-bar to engage the upper plate of the link, a plug adapted to be removably inserted between the side plates of the link, said plug being provided With a scale to indicate the extent of the shortening required, a pointer on the cam-shaft, and a scale for the pointer corresponding With that on the plug, whereby the initial position of the compressing-die may be accurately adj usted, substantially as described.

6. In a machine for upsetting or shortening links of sprocket-chains, the combination of a supporting-plate, a pair of superposed dies supported to slide in said plate, a Wedge to engage the rear ends of the dies to adjust and lock them in position, a compressing-die to cooperate with the superposed dies, a clamping device to engage the link and prevent kinking during the upsetting thereof, and a spring to return the superposed `dies When the Wedge is Withdrawn, substantially as described.

In testimony that I claim the foregoing as my oWnI have hereto affixed my signature in the presence of two witnesses.

CHARLES HULTS.

Witnesses:

ELIsHA PANGBORN, GEO. A. MCCARTNEY.