US936243A - Finger-head. - Google Patents

Description

G. & J. H. TRAP PIER. FINGER HEAD APPLICATION FILED JUNE 15. 1908.

936,243, Patented Oct. 5, 1909.

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HENRY G. FBAPPIER AND JOSEPH H. FBAPPIER, OF 'WOECESTER, MASSACHUSETTS.

FINGER-HEAD.

To all whom "it may concern;

Be it known that we, HENRY G. FRAPPIER and JOSEPH H. FRAPPIER, citizens of the United States, both residing at Worcester, in the county of lVorcester and State of Massachusetts, have invented a new and useful F inger-Head, of which the following is a specification.

This invention relates to a finger-head and improved connection thereof with the threadboard of a spinning frame.

The principal objects of the invention are to provide a simplified sheet metal finger head of such a character that it can be stamped out of sheet metal in a very economical manner, and made in such a way that it shall have integral means for holding it in horizontal position so located that the same will be protected by the outwardly extending edges of the finger-head itself from accumulation of lint and the like, and so formed that there will be no place around the hinge-pin on which the linger-head is mounted for the lint to gather or drop down through on the parts below; also to provide an improved means for adjustably clamping the pig-tail so that it may easily be moved to all desired positions without weakening the bolt by which it is attached and without necessitating the use of washers thereon; and to provide means on the pig-tail for reduc ing the friction of the yarn.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings which show one form in which the invention may be embodied, and in which Figure 1 is a plan of the same; Fig. 2 is a side elevation; and Fig. 3 is an end view.

The finger-head is intended to be applied in a well-known manner to the threadboard or rail 10 of a spinning frame. For this purpose a plurality of individual hinge members 11 are employed, one for each finger head 12. Each hinge member is provided with integral projections 13 which are bent around at the top thereof so as to journal the hinge pin 14. The finger-head is also provided with a plurality of projections 16 and 17. The projections 16 are bent outwardly around the hinge pin so as to be secured thereto or to turn thereon as may be desired, which securely hinges the finger head to the hinge member. Vith this construction it will be seen that the finger Specification of Letters Patent.

Application filed June 15, 1908.

Patented @et. 5, 19(19.

Serial No. 438,478.

head is readily removable individually with its hinge member from the thread-board, so thatit may be renewed or replaced in a convenient manner and adjusted to proper position if required, without displacing any other finger heads.

The additional rearward projection 17 is shown between the projections 16, but extending like them around over the top of the hinge pin. It is then brought vertically down when the thread board is in horizontal position, so to abut against the hinge member and form a stop to limit the downward swinging motion of the finger head. It will be seen that this projection or stop is located well in under the finger head and is protected by the outwardly extending side edges thereof from the accumulation of lint and the like. It will also be seen that as it extends around over the top of the hinge pin and is located in vertical position, it affords no place where the lint can gather or drop down on the parts below. 'iherefore, it atlords a convenient, simple. and positive stop to bring the finger head always into a horizontal position and one that will have the same effect after long use as when first put on.

The finger head is formed from a flat piece of sheet metal and has no flanges at its edges so that it can be made simply by cutting and without bending, except to form the projections 16 and 17. This is a very simple and inexpensive construction.

The finger-head is provided with a perforation 18 for receiving the bolt 19. This bolt is provided wit-h screw threads 20 near its end and with a horizontal perforation above the screw threads. In order to preserve the strength of this bolt and not make it necessary to provide one of excessive size, the screw threads are not out very far up on it, but the nut 22 which is applied to it is counter-bored at 23, so that the upper edge of the nut can bear directly on the pig-tail 2% which passes through the perforation in the bolt without weakening the bolt and without necessitating the use of a washer. This simplifies and strengthens the construction of the device.

The pig-tail preferably extends straight forward to the outer end thereof and then is bent substantially at right angles to form a bar 25 which is bent upwardly to form a reversely extending parallel bar 26 which projects over the straight forwardly; ex-

tending shank of the pig-tail, and then the end 27 is bent down on the outside of the latter. On the reverse bar 26 is mounted an anti-friction grooved roller 30. The flanges of this roller are adapted to engage the straight shank of the pig-tail on one side, and the bend between the bars 25 and 26 on the other. These two parts thus act to keep the roller in position on the pig-tail, and the roller acts to reduce the friction of the thread passing over the same. The roller is countersunk at one end at 31, so that no special care will have to be taken in bending the pig-tail around to provide a sharp corner, and so that if the corner is not sharp the roller will not bind.

It will be seen that the pig-tail affords a means whereby the position of the thread can be readily adjusted in all directions so as ordinarily to avoid any adjustment of the finger-head itself, and that the whole device is exceedingly simple and inexpensive in construction and well adapted to perform the ordinary functions of thread-boards in addition to those which have been mentioned above.

lVhile we have illustrated and described certain forms in which the invention may be embodied, we are aware that many modifications may be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, we do not wish to be limited in all respects to the particular details of construction shown, but

What we do claim is 1. The combination with a hinge member having integral sockets at the top, of a hinge. pin in said socket and a fiat sheet metal top plate having a plurality of rearward projections all bent down over said hinge pin, certain of said projections inside the edges of the top plate constituting a stop to engage the hinge member and others being bent around the hinge pin to pivotally support the top plate, said stop being located back from the edges of the top plate so as to be protected by the edges of the top plate from the accumulation of lint, and the like.

2. A finger-head having a vertical bolt extending therethrough from the top provided with a horizontal perforation, a pigtail extending through said perforation, and a nut having a counter-bored screw-thread adapted to be mounted on said bolt to directly engage the shank of said pig-tail, whereby a bolt can be employed screwthreaded only part way to the perforation, without a washer.

3. A finger-head having a bolt extending therethrough from the top provided with a horizontal perforation, a pig-tail extending through said perforation, and a nut having a counter-bored screw-thread adapted to be mounted on said bolt o directly engage the shank of said pig tail, whereby the nut can be employed without a washer, said pig-tail extending straight forward from the bolt and then being bent to one side around and up over the forward extending portion and having a roller on said last named part.

i. A finger-head having a pig-tail there on having a shank extending straight for-- ward and bent therefrom substantially at right-angles and up reversely over the shank and then downwardly and having a roller on said revcrsely bent portion, one edge of which engages the shank to keep the roller in position, said roller being countersunk at the other end.

In testimony whereof we have hereunto set our hands, in the presence of two subscribing witnesses.

HENRY G. FRAPPTER. JOSEPH H. FRAPPIER.

Witnesses Josnrrr Gornrrn, C. FORREST W'nsson.

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