US500128A - Crimping-machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

J. N. HEALD.

GRIMPING MACHINE. No. 500,128. Patented June 27, 1893.

T Nonms PErEas 00 mowo-umou WASHINGTON, n cy (No Model.) J N HEALD 3 Sheets-Sheet 2. GRIMPING MACHINE.

Patented June 27, 1893.

(No Model.) 3 Sheets-Sheet 3.

J. N. HEALD.

CRIMPING MACHINE.

Nb. 500,1Z8.- Patented June 27, 1893 aims PETERS 00.. Puma-Elma. WASH UNITED STATES PATENT @rrrce.

JAMES N. I-IEALD, OF BARRE, MASSACHUSETTS.

CRIMPlNG-NlACHlNE.

SPECIFICATION forming part of Letters Patent No. 500,128, dated June 27, 1893.

Application filed March 6, 1893. Serial No. 464,739. (No model.)

To all whom it may concern:

Be it known that'I, JAMES N. HEALD, a citizen of the United States, residing at Barre, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Boot or Shoe Crimping Machines, of which the following is a specification.

The aim of this invention is to improve the construction and arrangement of parts in leather-working machines, which are adapted to crimp the uppers of boots or shoes; and to this end, the invention consists of the device described and claimed in this specification, and illustrated in the accompanying three sheets of drawings, in which Figure 1 is a front elevation of a machine embodying my improvements, the framing being broken away to show the driving gearing. Fig. 2 is a side elevation, the framing in this figure, also, being broken away to show' the driving gearing. Fig. 3 is a plan view of the leather manipulating parts of the machine, the jaws being shown in section on an enlarged scale. Fig. 4 is a side elevation of one of the jaws, and Fig. 5 is a sectional elevation of the jaw shown in Fig. 4, takenon the line 5-5,

looking toward the left.

My improved machine consists of a reciprocating knife or blade, which is adapted to pass between two jaws, which, preferably are made yielding and adjustable, as hereinafter described, and the reciprocating blade orknife is adapted to take the upper, and draw or press the same down between the two jaws, and thus crimp, or give the upper the desired shape.

The machine herein shown is one which I have practically built for carrying out this ings 10 and 11 is asuitable bearing 15,-and bolted on this hearing 15 is an extending bracket 16, which forms a bearing, which is set in line with a bearing 17 formed in the side of the framing 11,as shown. Mounted in these two bearings 16 and 17 is a shaft 18, which may carry tight and loose pulleys as 19 and 20, a friction clutch, or any other suitable means by which power can be intermittently applied to the machine; and, if desired, from this tight and loose pulley or friction clutch, a treadle can be extended to the front of the machine, so that the same can be controlled by the foot of the operator, in the usual manner, not necessary here to show, or describe at length.

On the inside end of the shaft 18, is mounted a pinion 21. A bearing 22 is, also, formed in the framing 11, above the bearing 17, and in this hearing 22 is fastened or secured a stud 23, and on this stud 23 revolves the compound gear 24 25, the large gear 24 of which meshes with, and engages the pinion 21.

In the bearing 15, before referred to, is journaled ashaft 26, on the inside end of which, is secured the large gear 27, into which gear '27, the pinion 25, before referred to, meshes. By this'means, it will be seen, that the largegear- 27 will be given a strong and powerful movement from the shaft 13. The gear 27 has a crank-pin 28 mounted in the side of the same, as shown, and on this crank-pin is pivoted the pitman or connecting rod 29, which extends up through a suitable hole 30 cut in the table 12, as shown. A bracket 31 having a large and strong base 32 is secured to the top of the table 12 by means of bolts 33, as shown. The bracket or standard 31 is cut or planed away as at 34 and 35, to form a guideway, as shown, and fitting into this guide-way is the reciprocating slider 36, which has extending ears 37, which fit into the grooves 35, whereby the slider 36 is nicely held in place. To the lower end of the slider 36 is secured a crank-pin or stud 38, to which crank'pin or stud, the upper end of the pitman or connecting-rod 29 is secured, by which means, as the gear 27 is revolved, the slider 36 will be reciprocated up and down in the bracket or standard 31.

Secured to the side of the slider 36 is the knife or blade 39, which is held to the slider 36 by means of screws as 40. The under side of this blade 39 is shapedo'r cut away asat 390'to any desired form, so that the same will crimp, or give the upper any desired shape.

Mounted on the extension 13 of the table 12 are the two jaws 41, each of these jaws 41 having two extending ribs or supports 42,,

The rear ribs 42 of the jaws are sewhich are secured to the table 12 by means;

of screws 46, which clips are under-cut as at 47, and extend over and hold the ribs '42 in place. the=only portions of the ribs orsupports 42 that bear on=the vertical faces ot' the clips, and this iisuseful for apurpose hereinafter noted, The front ribs 42 of the jaws 41 are held in place by means of clips 48, which are iundercut "as at 52,*which clips 48 are seen-red to the table extension 13 by means of screws 49, which extend up through the under side of the table, as :shown, and are tapped into the clips 48, and these screws 49 may have suitable handles or knobs 50, as shown. The clips 48, preferably have two pins 51,'which fit into holesin the table extension 13, where- It will be seen that the beads 44 are by the clips 48 may :be accurately and nicely. set in place. .Itwill be seen,also that the beads 44 of the .front ribs 42 are the only portions of the front ribs that beanon the vertical faces of the clips 48. By this means, it

will be 86815 61131] the jaws can yield orcspring laterally to accommodate themselves'autosmatically to the varying thickness of the leather to be crimped, as the jaws, being guidedonly by these two rounded ribs or :pro-

jeotions44, arefree to yield or turn about anyextended down below the holding or retain;

ing lips or ribs 42, and through the table extension l3,as-at 41 2. The tops of these jaws are shaped as desired, so that the leather'will be nicely crimped between the jaws and the blade, as at 410, and the jaws have ribs 411 :extendingoutward firom their upper faces .as shown, so that the leather will be guided nicely down between the jaws, around the blade '39.

l he jaws are adjusted and heldastollows: The jaws have circular recesses 53 cutaway in thesides of the same,.-in'to which recesses,

'theslightly crowning heads 54 of thescrews 56fit, :and these heads '54 are held in place in the jaws 41 by means of the spning clips 55, which spring clips 55 are mounted on the threadedportion 63 of the screw-56. These springclips 55 are adapted to engage screws 57 and 58, which are;tap ped.into the jaws 41, as shown; and these screws have heads 570 and 580, as shown, under which the clips are adapted to fit. The clips have suitable recesses 59 and 60 that are adapted to fit in under the heads of the screws, and the clips may have a suitable finger piece as 61, by which they may be operated. Thus, by refcrenceto Fig. 4, it will be seen that the clip is moved so as as to engage the screws 57 and 58, whereby the jaw 41 will be nicely and securely held to the head 54 of the screw; but so that the screw can turn between the clip and the jaw. By taking hold of the finger "piece 61 of the clip, and moving the same to the left, the clip "will disengage the screws 57 and 58, whereby the jaw will be disengaged from the screw 56, and can be removed from .the machine. The sides of the table extension 13 are extended up so as to form bearings 62, as sho-wnpfitting into which bearings are the extending finished sleeves 69., of the hand-wheels 68, which hand-Wheels 68 have key-ways, which engage the keys 67, secured in :the screws 56.

Threaded on the-screw-threaded portion=63 of thetbolts56 are-the collars or nuts 64, which have the flanged portions 65, into which the springs 66 fit. These springs 66 arwheavy ones, and bear on theibearings 62,a-nd on the nuts 64. The-outer ends ot the screws 561are screw-threaded as at 70, and :tapped on these screw threaded portions 7.0 are the :starwheels 71.

The-operation of this adjusting mechanism is as follows: It will'be seen that the spring 66 hearing on the fixed bearing 62 and the collar 64 tends to press the jaws 41 together, and that this movementtof the jaws islimited by the hand-wheel 7Zhcoming against theihandwheel 68. 'llhereforawhen it isdesired toadjust either or both of the jaws relatively to each other or relatively to the reciprocating blade'or knife 39,1.he star-wheeler star-wheels, 71 are turned, which will move the jaw or 'jaws 41 in or out, as'desined. The jaws are yieldingly pressed toward each other by the springs '66, and when it is dosired to adjust the pressure betweenthe jaws, the handwheel or hand-wheels 68 are turned. This will turn the screw or screws 56, and will move the nut or nuts 64 on the thread-ed :portion 63 of the screw or.screws56,the'n'uts 64 not rotating oniaccon nt of thetpressurezagainst thesame from the springs 66. Thus, if it 118 desired to hold a jaw with more pressure toward the blade 39, the hand-wheel68 is rotatedsoas'to draw the nut '64 neanerito the bearing 62, whenthe springi66 wilil be tighter compressed, and will thereby'exert more press- :ure on the nut 64,.and therebym'ore pressure on the jaw. By this simple and eflicient adjusting mechanismrthejaws can be adjusted bodily, and thepressure that holds the jaws up to their work, can be nicely adjusted.

The operationofmy machine is apparent from the foregoing description, and is, briefly speaking, as follows: The operator places the upper on top of the jaws, and then starts the machine. If desired, the usual stops, by which the leather can be nicely set in place may be used, but, in general practice, after a time, the operator becomes so skilled in placing the leather, that the stops are not required. The knife 39 will now descend between the jaws, and will crimp or draw the upper down between the jaws, and will give the upper its desired shape. When the knife 39 has passed down between the jaws, theupper can be removed from the blade, or allowed to drop out of the machine. It will be seen that the knife 39 can be easily removed, and another one substituted, and that the jaws 41 can be readily changed, whereby the machine can be quickly adapted to different kinds and styles of work. Also, it will be seen that, by the mechanism before described, the jaws can be nicely set relatively to the blade, and the pressure that they exert on the upper, as the same is drawn between the jaws, can be nicely varied. Thus my machine is extremely efficient, simpl e, and accurate for the desired purpose, and the same may be used in other kinds of work, besides that of crimping uppers, as before described.

Modifications of the device herein shown and described, may be made by a skilled inechanic without departing from the scope of my invention, as expressed in the claims.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination in a crimping machine of the reciprocating blade or knife, of the two jaws between which said knife is adapted to move, of adjusting screws for said jaws, and spring clips as 55 mounted on the ends of said screws, adapted to detachably engage said jaws, substantially as described.

.2. The combination in-a crimping machine of the reciprocating knife or blade, of the two jaws between which said knife or blade is adapted to move, of adjusting screws for the said jaws, of the spring clips mounted on said adjusting screws, of the screws or pins 57 and 58 mounted in said jaws, said spring clips having recesses adapted to snap under the heads of said screws or pins whereby the adjusting screws may be detachably secured to the jaws, substantially as described.

3. The combination in a crimping machine of a reciprocating knife or blade, of the two jaws between which said blade is adapted to move, of the screws for adjusting said jaws, of the nuts tapped on said screws,'of springs arranged between said nuts and a fixed part, of means for moving said screws longitudinally, and means for rotating said screws, whereby the jaws may be adjusted, and the pressure that the springs exert on the jaws, adjusted, substantially as described.

4:. The combination in a crimping machine of the reciprocating blade or knife, of the two jaws between which said knife or blade is adapted to pass, of the screws 56 connected to adjust said jaws, said screws having the threaded portions 63 and 70, of the nut 64 tapped on the threaded portion 63, of the fixed bearings 62, and the nut 64 of the handwheel 68 keyed to said screw, and of the handwheel 71 tapped on the threaded portion of the screws, substantially as described.

5. The combination in a crimping machine of the reciprocating blade or knife, of the jaws between which said knife or blade is adapt-ed to pass, said jaws having laterally extending ribs or supports, and clips secured to the frame of the machine engaging said ribs, and thus holding the jaws in place, substantially as described. 7

6. The combination in a crimping machine of the reciprocating blade or knife, of the two jaws between which said knife is adapted to move, said jaws having extending ribs or supports, of the fixed clips holding said jaws at the rear, and removable front clips holding said jaws at their front positions, substantially as described.

7. The combination in a crimping machine of the reciprocating blade or knife, of the two jaws between which said knife is adapted to pass, each of said jaws having two extending ribs or supports as 42, and beads or heads 4L4: on said extending ribs or supports, of the clips 45 adapted to engage the rear ribs 42, and of the clips 48 adapted to engage the front of said ribs, the heads or beads t4, engaging the vertical faees of said clips, whereby said jaws are adapted to automatically adjust themselves, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

4 JAMES N. I-IEALD.

Witnesses:

L. T. HEALD, FRED. J OHNSON.

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