US477115A - Button-machine - Google Patents

Description

(No Model.)

F. H. HARDMAN. BUTTON MACHINE.

No.- 477,115. Patented June 14, 1892.

UNITED STATES PATENT OFFICE.

FRED. II. IIARDMAN, OF BEVERLY, ASSIGNOR TO \VALTER E. BENNETT, OF

ROSTON, MASSACHUSETTS. I

BUTTON-MACHINE.

SPECIFICATION forming part of Letters Patent No. 477,115, dated June 14, 1892.

Application filed August 21, 1891. Serial No 403,366- (No model.)

To aZZ whom it may concern: No. 403,365, although features of the present Be it known that I, FRED. H. HARDMAN, a invention may be applicable to other eyecitizen of the United States, residing at Bevforming or button-making machines, and, as erly, in the county ofEsseX and State of Massain the machine forming the subject-matter of 5 chusetts, have invented new and useful Imsaid application, I here show two of the dies provements in Button-l\lachines, of which the which coact in the formation of the eye and following is a specification. buttonhead, the third die, however, not be- This invention relates to improvements in ing shown, and A represents the fixed diewire'bending or eye-forming i'nechanism for block, having at its end the V-stud a, which IO button-machines, the improvements in some is formed as a short oval projection from said respects relating to other features of the maend, corresponding substantially to the eyechine as will hereinafter be made to appear. opening in thebutton-shank. Thesaid block The objects of the invention are the proin its side 7 is provided with the die depresvision of efficient devices for the ejection of sion 8, and in its rear side, or side opposite T5 the completed eye from the devices on which the one 7, the block A has the longitudinal the eye is formed, or, more generally, of the groove or way 10, which extends to the end eye and the button-body also formed thereon, face of the block with the innermost border and, secondly, the provision of aguard device thereof in a plane coincident with or near to which serves to retain the partially-formed the edge of said stud a, as shown. 2o eye on the forming-stud at the time one of The movable die B has its movement at the eye-forming dies recedes, so that the wire right angles to the length of the die-block A, or eye will not recede therewith, said latter with its inner side 12 in the plane of the end device further serving to reinforce the sup- 6 of the block A. The block B, when moved port for the eye at the time the paper or other to its forward limit, has its end 13 coincident 25 stock material from which the button-head with the side 7 of block A and has the die is formed is crowded upon and about the eyedepression 9 therein to match and correspond shank legs. with the one 8 in the other block, which two The invention consists in the construction depressions S 9 form the opening for molding and combination of parts, all substantially as and shaping the under portion of the button o hereinafter described, and covered by the head.

claims. Vithin the face 12 of die-block B the U- In the accompanying drawings the present openingb is formed, which merges byits wider improvements are illustrated. section into the said depression 9, and the Figure 1 is a view in perspective, showing width of said opening Z) is enough wider than 5 the fixed die and one of the movable dies, the the widest part of the stud a to correspond ejector and actuating devices therefor, and to the thickness at each side of the stud of the guard. Fig. 2 is a perspective view of the the wire from which the button-eye shank is parts shown in the preceding figure, but as to be formed, and all so that the wire having more or less separated from each other to been fed down vertically behind and next to 40 more clearly indicate details of construction. the stud a at the time the die B is receded Figs. 3 and a are horizontal sectional views the die B in its forward movement will transthrough the fixed die and movable die, the form the straight section of wire of suitable latter being shown in diiferent positions, as length into the form of a staple, the legs of occupied thereby at different times in the eye which may protrude within the die opening 9 5 45 or button forming operation of the machine. formed by depressions S and 9, and, if de- The present improved devices are particusired,beyond the plane of the die-faces 7 and larlydesigned for operation in connection with 13. The staple-legs are next, by suitable an eye and button formingmachinewhich conmechanism not necessary to here describe, stitutesthesubjcct-matterofaseparateappliforced together at points somewhat within 10c 50 cation for Letters Patent of the United States, their ends, the very extremities being spread filed by me of even date herewith under Serial or divergent. The stock material may now be crowded over and upon the eye-shank legs and molded and compressed to the formdesired for the button-head. The button having been made, the ejector then operates, and, as particularly shown, the said ejector consists of the rod d, which lies within the grooveway 10 in the rear side of die-block A, and is properly extended and provided with the block orenlargement f, which is borne upon by the head of the adjusting-screw g, which is in engagement with the swinging lever h. The movement of said lever in one direction is imparted by the camj and effects the shoving of the ejector-rod (1 against the eye of the button to force it off the stud. The ejector is quickly returned, so that the working extremity is drawn within the end face 6 of die A by the spring 70, which is applied between the fixed part D of the machine and the enlarged part f of the ejector. By turning the screw g the limit of the outward movement of the ejector-rod Z) may be a greater or less distance from the end face of the die-block A.

The function of the guard member, which is indicated at m, is to serve as a safeguard during the continued and rapid running of the machinefor instance, in the event of the failure, after the die B has gone forward to form the wire into staple shape and before it recedes, of the devices of the button-machine which close the legs of the staple upon the tapered part of the V-stud a or of the blank-applying and head-forming mechanism to act before the bent piece of wire could be ejected to clear the dies for the next button-forming operation, the bent wire might be carried back with the die l3 in the U-opening thereof, and manifestly on the next button-forming operation the presence of the staple in the U -opening would result disastrously. The part of the member which directly constitutes the guard is located within the face 12 of die B in the central line of the U-opening b, said guard member not having necessarily any movement, and the said guard-constituting portion m of this member is by its forward face held just back of and slightly separated from the rear edge of the V-stud a, so that no impediment will be offered to the free passage of the wire down back of and next to the rear edge of the V-stud. It will be seen that the guard member is, as shown, in the form of a rod m, which lies back and along side of the ejector-rod d and against a solid wall of a fixed part D of the machine, except the extremity 'm, which when the dieB is receded lies against the innermost wall of the U-opening b therein, and when the said die is forward in its working position the said extremity is within the groove 77. at the rear of and which communicates with the said U-opening, all as will be clear from the drawings. (See particularly Figs. 3 and 4.) The recess 11 in the present construction and arrangement necessarily being provided for the accommodation of the line of the said guard-rod.

extremity of the guard when die B is forward and working, the said guard extremity I nevertheless serves to efficiently reinforce the eye-shank in its confinement on the V-stud at the time the stock material is being forced upon and molded around the legs of the eyeshank.

The making of the guard member in the form of a rod is a convenient means of construction and renders easy the application of the guard in the mechanism for the extended or rod portion m, which lies along the rear side of the ejector-rod within the groove 10 and is by the spring 0 inwardly forced, so that the guard extremity m will always remain in contact with the inner wall of the U- opening or the groove n. The die 13, while it has sufficient rearward movement, as indicated in Fig. 3, to permit of the unimpeded ejection of the eye or button, never moves rearwardly so far that it is carried out of the The spring 0 is shown as applied between the enlarged part fof the ejector and the angular extension 13 of the rod 'm.

What I claim as my invention is- 1. In an eye-forming mechanism of a button-machine, the combination, with a block having a formingstud projecting from one side face thereof, of another block movable with one side face in bearing upon the face of the first block from which said stud projects and having a forming or die opening of U form within said bearing-face which extends to the end of the block and to coact with said stud, and a guard-piece provided to l extend within said U-opening and to lie just back of said stud and serving after the formation of the eye-staple as the movable die retreats to prevent the staple from being carried rearwardly with the movable block and off from the stud, as set forth.

2. In a button-machine, the combination, with a block having a stud a extended from the face thereof, of another die-block movable by one side along the side of said first block and having the U-opening 1) within said side and the rearwardly-extended groove 11, and a guard member extended to lie just back of and slightly separated from the said stud, substantially as described.

3. In a button-machine, the combination,

withthe die A, having the V-stud a, in its end and the groove 10 in its rear side, and the die 13, movable as specified and provided with the U -opening b, and the groove 12, of the 1 ejector located for play within the saidgroove, 1 and means for moving it endwise back and forth, and the guard-rod supported alongside of and at the rear of the ejector-rod and limited at its inner end by walls of the. openings in said die B, and a spring for maintaining the guard inwardly, as described and shown.

FRED. H. HARDMAN. Witnesses:

H. A. CHAPIN, M. A. BIGELOW,

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