US1229173A - Tack-feeding mechanism for button-setting machines. - Google Patents

Description

F. E. WARNER & W. T. LEGGETT. TACK FEEDING MECHANISM FOR BUTTON SET'HNG MACHINES. APPLICATION FILED OCT-19.1916.

1,229, l 73 Patented June 5, 1917.

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FRANK IE. \IVARNER AND WILLIAM T. LEGGEIT, OF WATEBBURY,

CONNECTICUT,

ASSIGNORS TO SCOVILL MANUFACTURING COMPANY, OF NATERBURY, CON- NECTICUT, A CORPORATION OF CGNNECTICUT.

Specification of Letters Patent.

Patented June 5, 1917.

Application filed October 19, 1916. Serial No. 126,565.

b all whom it may concern:

Be it known that we, FRANK E. TVARNER and l/VILLIAM T. Lneenrr, citizens of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Tack-Feeding Mechanism for Button Setting Machines, of which the following is a full, clear, and exact description.

This invention relates to a power machine for setting tack-fastened buttons on garments and other articles rapidly and accurately, and more particularly to means for presenting and positioning the tack for setting the button, and it is in the nature of an improvement on the invention forming the subject of Patent No. 1,183,824, granted May 16, 1916, to the Scovill llianufacturing Company, assignee of Frederick E. Stanley and George R. Leggett.

The object of the invention is to dispense with the cut-off or escapement that is ap plied to the chute or race-way which conducts the tacks from the hopper to the point where they are presented one by one to the mechanism for positioning them to the means for connecting them with the buttons, and to substitute for such cut-off or escapement an automatic arrangement which will positively take the tacks one by one from the chute or raceway and transfer them to the positioning mechanism, such as the feed trough of the patent referred to, where they are acted upon by the ejector of that patent, at the same time looking the escape from the chute or raceway of the other tacks therein until the tack first liberated and placed in the feed-trough has been positioned and set.

The invention consists of a checking-lever arranged adjacent to the discharge end of the tack-chute and brought into position to arrest a tack emerging from the chute by means of a reciprocating slide, which latter thereupon moves forward against the tack, releases the checking-lever, forces the tack into the feed-trough, and closes the end of the chute until the tack in the feed-trough has been positioned and set, and then reverses to permit the escape of another tack from the chute and its arrest by the checking-lever, as I will proceed now to explain and finally claim.

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a side elevation and partial section of enough of a power machine for set ting tack-fastened buttons to illustrate the invention. Fig. 2 is a horizontal section showing the attachment of-this invention in plan view. Fig. 3 is a perspective view of the attachment with the cover plate removed to one side. Fig. & is a perspective view of a modification. Fig. 5 is a perspective view of another modification. Fig. 6 is a perspective view of the reciprocating slide.

Before proceeding with a detail description of the drawings, it is to be noted. that the invention is not limited to any particular construction of button setting machine, excepting that it is primarily adapted for one in which a feed-trough receives the tacks one by one and positions them beneath the button in a line with the button setting machine.

While this invention is designed primarily for use in machines for setting tackfastened buttons, it is to be understood that it is applicable also to machines usingother fasteners than tacks, such as rivets and the like, and consequently it is to be understood that the invention as claimed is not limited to the feeding of tacks.

1 is a standard or frame, provided with a rotary tack-hopper 2, from which extends the chute or raceway 3 to the point of delivery of the tacks to the setting mechanism.

The button feeding and delivery mechanism may be of any approved construction, such for example as that shown in the patent referred to.

The tack-positioning mechanism may consist of a feed-trough 4% at the end of which are the spring fingers 5, to which the tack is transferred and by which it is held during the act of setting, such transfer being effected by an ejector 6, which is reciprocated in any suitable manner, as by a bell-crank mechanism 7 operated by a cam 8 on the cam shaft 9. The feed-trough and the delivery end of the chute or raceway are arranged alongside and parallel to one another.

A lateral opening 10 is made in this feedtrough at the deliveryend of the chute 3, and this lateral opening extends from a block 11 on which the parts of the attachment of this invention are supported. A recess or slot 12 is made in this block in which is pivoted substantially equidistant from its 'crank lever 21 pivoted at 22 to the block, its

other armhaving a pin 23 which is connected by a link 23 with a lever 24 one end of which is in roller contact with a cam 25 on the cam shaft 9, and its other end connected with a spring 26 fastened to some stationary part of the machine so as to press thelower end of the lever into operative contact with the cam and to insure the reciprocation of thele V ver 24 and the slide 16. The relation of the slide and the checking-lever is such that in its forward movement the slide will engage the tack at that time held by the finger 14: of the checking-lever and move the tack through the opening 10 into the feed-trough 1 to be acted upon by the ejector 6, and in so doing. the slide will disengage the finger 15 of the checking-lever thus freeing the way for the movement of the tack. In this forwardmovement of the slide 16 it closes the discharge end of the chute, as shown in Fig.

5, so as to arrest the escape of the tacks from the chute. Upon the return movement of the slide, its rear end will come into contact with the finger 15 and thereby rock the lever on its pivot and throw the finger 14 toward the delivery end of the chute and arrest another tack, the slide meanwhile positively holding V the checking-lever in this position until in its next forward movement it frees the finger 15 and closes the delivery end of the chute.

By this means the use of a cut-off or escapement such as hitherto usual on tack chutes, is dispensed with, and in its stead a positively-acting mechanism is supplied which avoids clogging of tacks and escape of more than one tack at a time, and the single tack that does escape is positively held until delivered to the feed-trough and the i ejector, and means to transfer the fasteners ejector therein.

Various means may be employed for positioning the checking-lever and the slide, and

we havesho'wn only one convenient means. As illustrated in detailin Fig. 3, the block 11 is cut down, slotted, or recessed to receive the'checking-lever' and the slide, and these parts are then inclosed by means of a plate 27 screwed down over the checking-lever and the flange 17, in such way as to permit freedom 'of movement of these parts.

Instead of providing a checking-lever 1 whose'forwardfinger'l'et operates on the head of a tack, we may provide a checking-lever with'said finger elevated so as .to act upon within the scope of the claims.

and this modification is shown in Fig.7 1, wherein the tack engaging end 28' of the leveris elevated above the slide engaging end 29, but otherwise the construction and operation are thesame.

It will be noted that in the construction heretofore described, no springs are used on the attachment. V i I In another modification, shown in Fig. 5, the checking-lever 30 has but one arm and that a forward arm, whichengages the tack, and this arm may be arranged as shown to engage the shank of the tack, or it may be arranged to engage the head of the tack, as

desired; and insteadofoperatingthis lever V by the movement of the slide to throw it into tack-arresting position, it may be operated by a spring 31. V V

The described and other variations of the principle of the invention are permissible What we claim is: j

1. In a fastener-feeding mechanism for button setting machines, a fastener chute or raceway, a fastener-positioning mechanism located at the delivery end of such chute or raceway and comprising a feed trough, a reciprocating ejector therein, and a holder to which the fastener is delivered bynthe ejector, and means to transfer the fasteners one by one from'such delivery end tothe fastener-positioning mechanism, same comprising a checking-lever to arrest the fastener escaping from such delivery end and a reciprocating slide arranged crosswise of such delivery end and adapted to act upon the checking-lever to release the arrested fastener: from the checking-lever and transfer it to the fastenenpositioning mechanism, and also to close such delivery end against the escape of otherfasteners for the time being. l I

2. In a fastenenfeeding 'mechanism for button setting machines, a fastener chute or raceway, a' fastener positioningmechanism located at the delivery end of such chute or raceway and comprising a feedtrough, a reciprocating ejector therein, and a holder to' which the fastener is delivered by the one by one from such delivery end tothe V fastener-positioning mechanlsm, same comprising a checking-lever having a laterally projecting beveled finger arranged opposite such delivery end-and adapted to arrest a fastener escapingfrom such end, and a rec iprocating: slide arranged between said delivery end and the finger and adapted to engage the checking-lever and the fastener "arrested thereby and to releasev such fastener and transfer it tojthe fastener-posi- Of other fasteners.

3. In a fastener feeding mechanism for button setting machines, a fastener chute or raceway, a fastener positioning mechanism located at the delivery end of such chute or raceway, and means to transfer the fasteners one by one from such delivery end to the fastener positioning mechanism, same comprising a checking-lever having laterally projecting fingers at its opposite ends, one of which projects toward the delivery end to arrest a fastener, and a reciprocating slide arranged crosswise of said delivery end and in the path of movement of the projecting fingers of the checking lever and adapted to contact with the said fingers to hold the lever in given position, and in its forward movement to release the lever and discharge the fastener arrested by the forward finger, and in its rearward movement to engage the rearward finger and move the forward finger into fastener arresting position with relation to the chute or raceway.

4. In a tack feeding mechanism for button setting machines, having a tack chute and a tack positioning mechanism located at the delivery end of said chute, and com prising a feed trough, a reciprocating ejector therein and a tack holder to which the tack is delivered by' the ejector, and means arranged adjacent to the delivery end of said chute to transfer the tacks one by one to the tack positioning mechanism, same comprising a reciprocating slide arranged crosswise of the delivery'end of the chute to transfer the tacks to the tack positioning mechanism as they escape one by one from said chute, and a checking-lever extending toward the discharge end of the chute to arrest the tacks one by one and present them in the path of movement of the slide and 40 adapted to move away from the slide as said slide moves to transfer the tacks to the positioning mechanism.

5. In a tack feeding mechanism for button setting machines, having a tack chute, and a tack positioning mechanism located at the delivery end of such chute and paral lel therewith, a tack cut-Off communicating with the tack positioning mechanism and having a reciprocating slide arranged transversely of the chute and adapted to open and close the delivery end of the chute, and a checking-lever arranged alongside of the slide and having fingers at its opposite ends extending toward the slide, one of such fingers extending sufficiently close to the delivery end of the chute to arrest an escaping tack and position it in the path of movement of the slide to be acted upon by the slide to transfer it from the cut-off to the tack positioning mechanism, said slide during such movement closing the chute against the escape of other tacks, and the other finger adapted to be acted upon by the slide in its reverse movement to move the tack arresting finger of the checking-lever into position to arrest an escaping tack when the slide has uncovered the other end of the chute.

In testimony whereof we have hereunto set our hands this 18th day of October, A. D. 1916.

FRANK E. WARNER. WILLIAM T. LEGGETT.

Witnesses:

E. A. HYDE, PERCY WARNER.

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

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