US520990A

US520990A - Punch

Info

Publication number: US520990A
Authority: US
Publication date: 1894-06-05
Anticipated expiration: 1911-06-05

Description

(No Model.)

W. HILL. PUNCH.

No; 520,990. Pat ented June 5, 1894.,

Untrrn STATES ATENT FFICE.

lVARRENlHLL, OF HARTFORD, CONNECTICUT.

PUNCH.

SPECIFICATION forming part of Letters Patent No. 520,990, dated June 5, 189 4.

, Application filed January 25, 1894. Saris-1N0. 498,049- (Nomo eu To all whom it may concern/.-

Be it known that I, WARREN HILL, of the city and county of Hartford, Connecticut, have invented certain new and useful Improvements in Ticket-Punches, which improvements are described in the following specification and are illustrated by the accompanying drawings.

Myinvention relates to those hand punches which are used by railroad conductors and others for the purpose of perforating passenger tickets, and the like.

It is the object of my invention in general to produce a ticket punch of superior simplicity, compactness and efficiency, and in particular to provide such punch with a stripper, having a superior construction and operation. To accomplish these objects I pivot the stripper to that jaw of the punch which carries the male die, and as near as possible to the fulcrum of that jaw, and also attach the stripper to the same jaw by means of a slot and screw at the outer end of that lever.

The best manner in which I have contemplated applying the principles of my invention, is illustrated by said drawings, in which Figure 1 is a side elevation of a punch which is constructed in accordance with those principles. In this View the punch is shown wide open. Fig. 2 is a central vertical section of the same punch, when shut. Fig. 3 is a front end elevation of the stripper which is found in Figs. 1 and 2. Fig. 4 is a plan of a flat blank of sheet metal, from which the stripper is formed by bending.

In Figs. 1 and 2, the numerals 1 and 2 denote the jaws of the punch. These jaws to gether with their respective shanks, 3 and 4, forming the handle of the punch, are pivoted together, as levers of the first class, by the shoulder-screw 5, in the usual manner. Jaws 1 and 2 are respectively provided with male and female dies, 6 and 7, in the usual manner. Between shanks 3 and 4 is fixed a spring 8, which throws the jaws open, when they are not held shut by the pressure of the hand upon the shanks 3 and 4. Stop 9, upon shank 3, prevents the male die 6 from being pressed too far into the female die'7, in the usual manner.

The stripper, whose duty is to push the ticket off the maledie 6, when the jaws are opened after punching, is denoted by the numeral 10. In Figs. 1, 2 and 3, the form of the stripper is plainly shown, as formed up from the blank, which is shown in Fig. 4E. The two sides of the stripper are turned up to parallel positions, at right angles with the bottom of the stripper, and at a suitable distance apart to admit jaw 1 between them. By screws '11 and 12, which pass through holes 19 in the stripper, the latter is pivoted to jaw 1 at a point which is near the back end and outer edge of that jaw. Also the forward end of the stripper is attached movably to the forward end of jaw 1 by a screw 18, which is inserted in a hole in the forward end of jaw 1 after passing loosely through slot 14: in tongue 20. That tongue, being bent upward in a double curve, as shown in the drawings, not only engages jaw 1 through screw 13 but also facilitates the guidance of tickets into the slot 17, which is hereinafter mentioned. Within the stripper, and between the male die 6 and the fulcrum 5, is

set a spiral spring 15, which is attached to jaw 1, and is held in place, relative to stripper 10, by a nipple 16, which is struck up in the bottom of the stripper, and slightly enters the otherwise free end of that spring.

The general method of operation of the described punch is snfftciently obvious. It is necessary, however, to note certain advantages, which result from the described manner of construction. Stripper 10, in consequence of being pivoted at the point, which is above described, has but little radial motion on its pivot, and lasts long, with little wear or consequent lost motion; and in consequence of embracing jaw 1 throughout its entire available length, has great steadiness and freedom from lateral motion, so that the male die 6 never is dulled by striking the stripper at the sides of the hole 18. The position of screw 18, playing in slot 14, accurately limits the movement of stripper 10, relatively to jaw 1, to that range which is necessary for the purpose of alternately covering and suitably uncovering that portion of die 6 which enters die 7. The function of screw 13 and slot 14, regarded. as stopping mechanism, is double, and operative in opposite directions, so that the stripper can neither uncover the male die too far by turning pivotally toward jaw 1 farther than is necessary, nor close the ticket slot 17 unduly, when the punch is open, by turning pivotally too far from that jaw under the pressure of spring 16. Stripper not only throws olf the ticket, when punched, and prevents the ticket from being hit by the male die 6, while being placed in position for punching, but also, in conjunction with jaw 2, forms the before-mentioned ticket-slot, which is seen at 17 in Fig. 1. This slot is exceptionally convenient in shape, and is as wide open as is consistent with the complete covering of the male die 6, whenever the jaws are separated, as seen in Fig. 1. The location of spring between die 6 and fulcrum 5, instead of near the extreme end of jaw 1, permits the location of the male die 6 near that extreme end, and so diminishes the necessary length of jaw 1, in the interest of compactness. The described location of spring 15 makes the punch easier to operate; and that spring has less motion and more uniform action, and is not exposed to the same severe and destructive strain by which springs are usually affected when located near the outer end of the male lover.

Such being the construction of my improved punch and the 'speeial advantages of its operation, I claim as my invention- 1. In a ticket punch, having two levers, which are pivoted together, and are provided with a male and female die, a stripper, covering the sides of the jaw that carries the male die, and having its inner end pivoted to that jaw, substantially as and for the purpose specified.

2. In a ticket punch, having two levers,

WARREN IIILL.

Witnesses:

WILLARD EDDY, HENRY S. RITTER.