US873077A - Comb-cementing clamp. - Google Patents

Description

PATENTBD DEG. 10, 190'7.

' RJ. PATNOD.

00MB GBMBNTING CLAMP.

APPLIUATION rILnn JAN. 2. 1907.

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UNITED STATES PAT 'folFIC-EE.y

v"FELIX J. PATNQD, or WORCESTER,

hole 23, within MASSACHUSETTS, 'ASSIeNoR oEoNEHALr To JAMES FITZGERALD, OF WORCESTER, MASSACHUSETTS.

COMBCEMZENTING CLAMP.

No. 878,077 .I

To all whom it may concern.'

Be it lmown that I, FELIX J. PATNoD, -a citizen of the United States, residing at Worcester, in the county of WorcesterState of Massachusetts,l have invented a certain new and4 useful Improvement in Comb-Cementing Clamps, of whichl the followin is a thereln to .is an end,l view ofthe same showing the rlbs, vwhich are" constructed vto strengthen Ithe clamps. Figs. 4 and 5 show, respectively, an end and slde view of one of the links v,which I shall describe hereinafter. Figs. 6 and 7 are front and side views, respectivel of the yoke. F' s. Sand 9.are top and si e views, res ective y, of the 'guide block.

F'g. 1, 1 is the o lowerx.clamps;'4, the upper Jaw; 5, the lower auw; 6, the yoke; 7, the guidel block; 8, the k; 9, the lever handle 10, the lock-nut; 11, the shoulder on the upper clamp to prevent the levergoing back too far; 12, the rubber face on the 'upper jaw; 13, the pin upon the 'de block, 8, which is one of the axes of the Erik 7; 14, the other pin or axis of the same link set upon the upper jaw; 15, the pin upon which the yoke operates.

In 2, 16 is the spring which controls the upper jaw; 17and 18 are the strengthening ribs of the upper jaw and of the corresponding positions in the lower jaw.

In F- handle the object of which scribed hereafter. l.

In Fig. 5 may be Seen the holes, 20 and 2,1, withinwhich the pins', 13 and 14, operate and the recess, 22, to clear the guide block.

In Figs. 6 and which the lever handle' 9, as lshown 1n 1, is screwed. 24, 24 are the holes throug whichthe axis vpm 15 of the yoke passes.

- Fig. 8 is an'enlarged view ofl 8 as'pre-,

viously shown;t in Fi s. 1 and 3 and-here is shown the pin 13, es'crlbed in connection withthe'lin .w

Specication of Letters Patent. Application im Jmryz. 1to1.v serial no. 350.653.

we r clam ;2,.the upper-l clamp; 3, the-h1nge joining t e upper andbeing placed oneach end PScrewed into the threaded holeat the 1g. 3, 19 shows the end of the lever,l pressing against the guideblock, 8,

be more fully de' lclamp is cast a shoulder 11 7 is shown the threaded A guide block to which the Patentedmc. 1o, 1907.

which is a flat sheet of metal, T shaped 1n form with the cross ofthe' T forming the lower jaw of the clamp; 2 is also a T shaped plate, but shorterl than 1 and hinged t it by the pin hinge 3. This pin hinge 3 is of the ordinary form onlybroad enough so ,that the s ring, which I shall describe eter, may be p aced upon it,l the form of this hlnge being est shown in Flg.l 2. Upon the -upper clamp 2 is' the 'aw' 4, which 1s the cross portion of the T, a the other jaw' 5, which is laced upon vthe lower and similar .to it. 'Epen the 'lower clamp is fastened the yoke 6 by means of a pinwhich I shall describe hereafter and this maybe clearly seen in detail in Figs.` 6 and 7 7 is the guide block shown in Figs. 8 and 9 and this vis slidup between the side lates of the yoke 6 with the describe later, at the top.

8 is the'link which is fastened to a'pin,'to be described hereafter, on the u perclamp' and.also by the 'pin to the e. block 7.' This link consists of two arts, each being similar to that shown in gs. 4 and 5, one A of the `pin' 13, as

shown in Fig. 8- forming a link such as is eady described, and ts with sof found in the ordinary bicycle chain, butin v two arts.

9 1s the handle of the lever composed'of theliandle-and yoke andthe saidhandle is to of the yoke, to be described hereafter. Ulpon the screwed thread of this handle, I.have laced a lock-nut, 10, to revent the said handle from unser-swing. pon the upper to prevent the lever fromgoing back too far, as I shall "def p scribe in the o eration.

12 is the rubber facing ofthe jaw 2 and extends over the whole 'face thereof as may be seen in Figs. land 3 and its object is to give to the jaw an elastick surface so as better tocompress the comb when it is inserted therein for cementlng;v 13,-the pin in the it ma be seen tothe best advantage in Figs.

,y 8 an 9; 14, the pin set in the rib of thelink is fastened and through I to the side, the

and 15 come into already -lever may upper clamp to which the other end of the. lin is fastened and 15 is the pin set in the lower clamp upon which the yoke operates. These ins should be so placed that they should be in nearly a vertical line when the lever isin the posltion shown in Fig.'1, l

16 is the sprlng to controlthe upper clamp and is the ordinary form of coil spring.A ne end of this spring is against the u per clamp and the other end against the ower', thus giving to the jaws the vtendency 'to spread apart; 17 and 18, the main and cross ribs of the upper or lower jaw, being thesame in both, and are for the purpose of strengthening the said jaws; 19, the end of the handle 9, as shown in Fig. 3, and it is this end that acts as an operating or .re ating oint of the handle 9, which I sha1 descri e more fully hereafter; 20 and 21, the holes through which the pins 13 and 14 act and their size must depend uponl they should fit'within these holes.

The object of cutting the recess 22 in the link 8, already described, is that it may clear the guide block when the lever is pushed forward, giving to the link the motion, whichl shall describe more fully hereafter. 23 is the hole in the end of the yoke 6 which the handle 9 is screwed, as has already been stated. 24and 24 are the holes in the said yoke throughv whichr the pin asses.

v he method of operation of the invention is as follows. The-comb to be cemented is laced between the jaws 4 and- 5, the lever having been brought forward in the direction of the arrow A, and then the lever is shoved back until it strikes the shoulder 11. The

motion of the lever in the direction of the arrow A, already mentioned, causes the upper jaw to be raised and the turning of the sameto its place, closes the jaws to ether. This is accomplished b means of the 'nk 8, described. T e lower pin 14 is a little'out of the straight line, connecting the center 15 and the center 13 in the directionof the front of the clamp, in order that the be locked when against the shoulder 11. This link in'connection with the oke with axis at 15 makes a typicalto'gglejoint so that, as one of the p'oints is moved others must be brought nearer together. As the lever is pushed from its forward position into the position shown in the figure, the three points 13, 14 line just before the guide block 7 strikes the shoulder 11 andthen the points 13 and 15 ass the point 14 in the alinement, thus t e lock previously described. Y A

As the size of the combs to be cemented varies. very materially, it is necessary to make the clamp ladjustable and to adopt a method of adjusting which' will keep the jaws exactly paralle To accomphsh this,

vthat the jaws come that of the said pins as' I have placed u on the machine a lever which acts not o y as a means for operating the jaws, but as a re ulator. The method of doing this is as fol ows. To tighten the jaws, unscrew the lock-nut 10 upon thehandle 9 yand then screw the hole 23, as shown in Figs. 6 vand 7, thus pressing down on the guide block 7 and also the link 8, which is connected with the said guide block and which in turnshoves down on the upper jaw 2. To raise the jaw, the converse of this action is pursued. guide block will always follow the handle 9, as it is raised, on account of the s ring 16,

'shown in Fig. 2, which gives to t e upper jaw a tendency to o en, thus shoving u on the link and the link upon. the guidev blldck When the handle has been *regulated so the proper distance apart, the

vdown the handle 9 inE lock-nut 10 should be lscrewed The j down agalnst the top of the yoke 6, thus re- Y ventingjusAtment while the machine is in use. e see, therefore, that the link not only acts as a means of transmitting the desired motion, but as a lock for the lever and the jaws.

The rubber face 12 in the upper jaw is placed upon the same, not only grip the comb to complensate be in t when it is placed therein, but for any error that there may e jaws not being parallel surfaces,

he handle 9 from getting out o ade' to firmly 'i due to the need of having a fixed hinge and havi jaws om their normal position as shown 1n Fig. 1. .l

. n the older forms of comb cementing clam s now in use, instead of our single bolt, whic acts as a regulator, there are a series of ordinary bolts passed through the two plates at some distance apart and it is not only very difficult but almost impossible to regulate all these bolts 'so that the pressure at one end of the comb is the same as at the other. my invention, the regulating bolt comes in the middle so that the ressure cannot help but be the same at bot ends, which is a very material advantage. A slight diHerence in the level' of either side of the 'aw is not material, but it is very material that the ends should be exactly even and therefore exert an even' pressure. y' v My reason for cutting out the' recess 22 is that the link may advance further, as the lever is brought forward, without strikin against the edge 26 of the-guide block One ofthe advantages -f the link motion,

lwhich I have applied to my 1nvention,` is that when the `'aws are apart and therefore previous to t eir coming in contact lwith the comb, when the lever is moved forward, they a proach each other very rapidly, but

las the ever approaches the position as shown in Fig. 1 and v e toggle-joint approaches the straight line, the motion and therefore easier.

to operate, it being on frequently to alter Vthe position of the becomes less rapid ally mounted thereon, aflever argo?? the `same principle as a small gear a larger one, and a great tained with little application of force.

I claim as my invention' 1. In comb cementing clam s, the combi-l nation of a xed jaw, a mcva le jaw pivotv pivoted on said fixed jaw and attachedto said movable jaw by a to gle-joint to operate said movable jaw witIi relation to said :fixed jaw and means upon said lever to adjust the relative position of sai jaws, substantially as described.

2. In comb cementing clam s, the combination'of a iixed jaw, a Inova le jaw pivotally mounted thereon, a lever ivoted on said fixed jaw and attached to sald movable pressure can be ob-l jaw .by a toggle-joint and an adjusting screw upon said lever to regulate the relative osition of said `aws, substantially as descrl ed.

3. In com cementingclam s, the combination of a fixed jaw, a movable jaw pivotally mounted thereon, a lever pivoted on said fixed jaw and attachedto sald movable jaw by a to gle-joint, to-operate said movable 'aw wit relation to said Vfixed jaw and an a "ustable handle upon said lever to regulate t e relative position of said jaws.

In 4testimony whereof I afiix my signature in presence of two witnesses.

FELIX J. PATNOD. Witnesses 'v HARTLEY H. BARTLETT, MARY E. HICKEY.

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