US1423250A - String holding and cutting adjustment for rivet-setting machines - Google Patents

Description

H. PARKINSON. ST-RING HOLDING AND CUTTING ADJUSTMENT FOR RIVET SETTING MACHINES.

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APPLICATION FILED MAY 25, 1921.

4 Patented July 18, 1922.

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H. PARKINSON- STRING HOLDING AND CUTTING ADJUSTMENT FOR RIVET SETTING MACHINES.

APPLICATION FILED MAY 25. I921.-

Patented July 18, 1922.

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HAROLD IPARKINSON, 0F WILMINGTON. DELAWARE.

Application filed May 25, 1921.

Be it known that I, HAROLD PAnKiNsoN, a citizen of the United States otfunc'rica, and residentott lvilmington, in the county of New Castle, in the State of Delaware, have invented certain new and useful Improvements in String Holding and Cutting- Ad justments for Rivet-Setting Macliines, oi which the following is a true and exact description, reference being had to the accompanying drawings, which torm a part thereof.

My invention relates to'rivet setting in achines and has forits object to proiide such machines with an attachmentwhercby successive lengths of string drawn from a spool or other reservoir can be guided and held in proper alignment with a rivet holder so that the string will lie beneath the head of the rivet and be clamped between the rivet head and the board or other object into which the rivet is set.

Another objectof my invention is to pro vide a string cutter in proper alignmentwith the string guides and by means of which the string after being clamped against the board by the rivet can be readily cut of? after the next successive length of string has been brought into proper alignment with the rivet setting mechanism.

My invention has been especially devised as a means for securing to the cards or boards on which piece goods are to be wound strings by means of which cards in the nature of price tags can be attached.

The nature of my improvements will be best understood as described in. connection with the drawings in which I have illustrated them in connection with the outline of a rivet setting machine of familiar type and in which Figure 1 is a side elevation of the machine provided with my improvements.

Figure 2 a. front view thereof.

Figure 3 a plan view with the upper part of the mechanism cut away.

Figure 4 a detail showing the way in which the string'is secured to the board by the rivet, and

Figure 5 is a perspective view. showing one end of the board with the string and tag attached thereto.

A indicates the main head of the rivet set ting machine supported on the standard B having, as shown, an arm A to which is secured a head A in which the rivet setting Specification of Letters Patent.

Patented July 18, 1922. Serial No. 472,580.

plunger moves and to which the mechanism, not shown, for actuating the plunger is con nected. A indicates the lower forwardly extending arm of the head A. which supports the work holding head A"; E indicating the adjustable handle usually employed in connection with this head. C, Fig. 2, indicates theguideway through which the rivets are fedto the positioning holder. C indicates the rivet setting plunger. D indicates an arm extending down from the head A and supporting the guide D and the positioning holder for the rivets indicated at D The general character of the machine is similar to that described in the patent to Havener 959,738 of llllay 81, 1910, except that I have indicated only a singl'einstead of a multiple rivet setting mechanism but it will be understood that my invention is applicable to any type ot rivet setting machine and is entirely independent of the particular rivet setting mechanism employed. F F, indicate bracket arms secured to the body of the rivet setting machine and supporting a. Hat work holding table G on the upper face of which are lo cated card positioning devices made up, as shown, of angle irons H, lIQsecure'd to the table G by bolts ext-ending through slots G, G and G G said slots enabling the positioning angle irons to be adjusted for difier ent sizes of cards. I is a bracket arm secured to the under side of the table G and supporting a spindle I on which is placed a spool of string indicated in dotted lines at T. G is a perforation formed through the table G through which the string passes from the spool T. J is a string guide secured to the upper face of the table G and formed, as shown. with a perforation J through which the string passes and. which positions the string at proper height with respect tothe rivet holder. In practice it is generally convenient to give the string a turn around the guide post J to insure proper tension, although, of course. any convenient tensi on device may he employed. On the opposite side of the table from the string guide J and in proper position to hold the string so that it will lie beneath the rivet head I locate another string guide which, as shown, and as preferably constructed, consists of a plate K attached to the top of the table G and having a rearwardly flaring arm K and another plate L having an outwardly flared arm L located in gripping relationship with the plate K and preferably held against it by a spring such a spring being indicated at M and M indicating a thumb nut for adjusting the tension of the spring.

On the outside of the thread guide and gripper KL I locate a cutting device by which the string can be cut olt after it is attached to the card or board and this cutting device is best made up of an ordinary pair of scissors, as shown. it bracket N is secured to the under side otthe table (i and to this bracket the arm P oil a stationary scissor blade P is attached. P indicates the pivot or the move able scissor blade P which has an actuating arm I to the end of which is attached an actuating rod Q, having for convenience of operation an outwardly bent portion Q which extends out beneath and slightly in front oi the table G as best shown in Fig. 1, R, R, are springs attached tothe rod Q, as shown and acting to normally hold the scissors in open position indicated in Fig. l, U, 0, are brackets secured to the under side of the table and formed with slots U through which pass the rod Q. These slots should be made of a circular arc concentric with a line passing through the pivot it of the scissors. b indicates the head and hi the shank oi the rivet. U indicates the string passing from the spool T and V indicates the card or board into which the rivet is sunk and to which the string is to be attached.

In operation the string ii is led from the spool through the perforation G" and through the perforation J of the string guide J. It is then passed across beneath the rivet holding device D into the bite of the string guide KL. A card V is then placed on the table G- properly aligned by the guides H, H, and the machine operated to force the rivet into the card or board ii the rivet head carrying down the string and gripping it against the top of the board as indicated in .1 ig. 4%. The operator then moves the board with the string attached to it to the left, drawing the string from the spool through the guide J and through the guide KL and between the blades or the scissors and after the board has been moved sufliciently to the left to provide for the length of string de sired the operator presses down on the portion Q, of the scissors actuating rod Q, causing the scissors to close and sever the string and obviously this operation leaves a new length oi": string extending between the string guides and in proper relationship to the next rivet to be set into a board.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is: V

1. In combination with a rivet setting ma chine a string guide located on one side of the rivet holder, to receive and position the string as it is drawn from a spool and an elastically gripping string guide and holder having outwardly flared guide arms located on the other side oi the rivet holder,

2. in combination with a rivet setting machine a card holding table, a string guide to receive and'position the string as it is drawn from a spool located on one side of; the rivet holding device, an elastically gripping string guide having tlaredguide arms located on the other side of the rivet holder, scissors for cutting the string located in alignment with the string guides, a scissor actuating rod extending rom the movable arm 01. the scissors below the card holding table, brackets having guide slots formed in them through which sa id rod extends and springs attached to said rod and acting to normally hold the scissors open.

HAROLD PARKINSUN

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