US367030A - fischee - Google Patents

Description

(No Model.) 2 SheetsSheet 1. P. FISCHER.

URIMPING MACHINE.

No. 367,030. Patented July 26, 1887.

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(No Model.) 2 Sheets-Sheet 2.

P. FISCHER.

GRIMPING MACHINE.

No. 367,030. Patented July 26, 1887.

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UNITED STATES PATENT OFFICE.

PHILIPP FISCHER, OF STOUGHTON, MASSACHUSETTS, ASSIGNOR TO 'CLARENOE XV. MEAD, OF SAME PLACE.

CRlMPlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 367,030, dated July 26, 1887.

Application filed December 27, 1886. Serial No. 222,540.

To all whom it may concern:

Be it known that I, PHILIPP FISCHER, a citizen of the United States, residing at Stoughton, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvementin Crimping-lliachines, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to leather-crimping machines, its object being a device to keep the leather under tension by a yielding pressure and squeeze the water from the leather while the former draws it down between the jaws, and also to so construct the jaws as to allow the water which is squeezed from the leather in the process of crimping to be conducted away, so that the machine may be kept clean, the leather may dry the more quickly, and re tain its shape better than when the machine has no such outlet.

The first part of my invention consists in two pressure'bars, each of which is shaped to conform to the configuration of the upper edge of the jaws, and supported at'each end so as to slide up and down, and aspring for holding the pressure-bars down in a groove in the upper edge of the jaws to clamp the leather across the jaws by a yielding pressure while the former is drawing it down between the jaws.

A second feature of my invention consists in constructing the jaws each with a groove along the upper edge to receive the pressurebars, and with a hole leading from the groove to conduct the water away when squeezed out by the pressure-bars.

In the drawings, Figure 1 is a front elevation of a machine embodying my invent-ion. Fig. 2 is a cross-section on line :0 a: of Fig. 1, but with the former partly descended and a leather inserted. Fig. 3 is a cross-section on line y y of Fig. 1.

My invention is adapted for use in connection with any of the crimping-machines commonly used. The one which I have shown in the drawings is a hand-power machine.

The two jaws A A are mounted ina frame, 13, and are capable of a horizontal movement toward and from each other by means of crank 12 and screw-bolt d. The former D is mounted on a frame, D, which is capable of movement in a vertical direction by means of lever E,

(No model.)

segments F, shaft G, and rack-bars (1, attached to the frame D. The pressure'bars Hare rods of iron bent to conform to the upper edge of the jaws A A, and have an eye in each end, through which pass the guide-rods i Each guide-rod also passes through an car, a", on the side of the jaw to steady the jaws. Springs Ione upon each rod h0ld the pressnre-bars H with a yielding pressure within thegroovcs a in the jaws. The nuts h may be raised or lowered upon the rods h to regulate the ten- SlOIl.

The leather is always wet before being passed through the crimping-machine, and if no conduit for carrying away the water is provided the leather will retain a large proportion of the water when removed from the former, and will require a long time to dry, and has a tendency to wrinkle and lose its shape in the process of drying. Moreover, the water which is pressed out is greasy and fouls the machine. In order to obviate this, I construct the jaws with holes a, or a slot leading from the bottom of the groove a through the jaws, to allow the water to pass off into a receptacle as it is pressed out of the leather by the pressurebars H when the leather is drawn under the bars and between the jaws by the former D. Thus the leather is kept smooth and under uniform tension while being crimped, and when taken from the machine is nearly dry, and retains its form when dried much better than when removed wet, and it has a smoother finish. The nuts h may be set at any point on the guiderods h to serve as a stop for the pressure-bars.

Each guide-rod h is connected at its lower end with a lever, L, operated by a treadle, M, to raise and lower. the guide-rods. Spiral springs M are fastened at one end to the lever L and at the other end to the frame, so that when the springs M are extended they will draw the guide-rods down and assist the springs I to clamp the pressure-bars, and are made more powerful than the springs I, so that when released by dropping the hook 8 they will push the guide-rods upward with sufficient force to contract the springs I slightly, and thereby raise the pressurebars H sufficiently to allow the insertion of the leather for crimping. The front arm of each lever L is connected with the rear arm by rod I, so that ICO - 2 semoso one treadle may operate both levers and all the guide-rods. The guide-rods h also pass through slots 1" in the cross-bars R, which slots are made oblong to allow for the play of the guide-rods occasioned by thehorizontal movement of the jaws.

The operation is as follows: The former being raised and the jaws open, the pressurebars are also raised, in the manner just described, to allow the insertion of the leather, T, in proper position across the jaws AA. The treadle M is then pressed down and'hooked, as shown in Fig.1. The tension of the springs I is sufficient to clamp the pressure-bars H with suffieient force upon the leather to keep it stretched until the former descends. By means of the lever E the former D is moved downward between the jaws, folding the leather upon its sides to the shape of the former, and at the same time, while passing under the pressure-bars, the water is squeezed out and runs off through the grooves a and holes a, so that when clamped between the jaws it is smooth and clean and nearly dry. When the former is clear down, the jaws are closed by turning the crank b in the usual way to press the leather, and then opened and the former it raised to remove the leather.

It is obvious that the device for controlling the movement of the guiderods may be varied in many ways, and my'invention is not limited to use with the particular form of machine shown.

WVhat I claim is- 1. Inaerimping-machine; jaws A A, formed with grooves a, in combination with former D, pressure-bars H, shaped to conform to the configuration of the upper edge of the jaws, and springs to clamp the pressure-bars within the grooves with a yielding". pressure, substantially as described.

2. In a crimping-machine, jaws A A, formed with grooves a and outlet-holes a, in combination with former D, pressure-bars H, shapedto conform to the configuration of the upper edge of the jaws, and springs to clamp the pressure-bars within the grooves with a yielding pressure, substantially as described.

PHILIPP FISCHER. Vitne'sses:

LAURITZ N. MQLEIR, WM. A. COPELAND.

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