US319730A - Michael wilz - Google Patents

Description

(No Model.)

J. J. LARGENT.

FREIGHT GAR DOOR.

10.319,730. PatentedJune 9, 1885.

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sPEcIPIcATroN forming part'of' Letters Pa't'et'ivo. 319,730, dated June 9, 1885. I AYApp-riemion sied 1,1885." (Nomaden.) 4 y To all whom t may concern/.-

Be it known that I, JAMES J. LARGENI, ofI Peoria, in the county of Peoria, in the State of Illinois, have invented an Improved Freight- Car Door; and I do hereby .declare that the following is afull, clear, and exact description thereof, reference being had to the annexed drawings, making a part of this specification, in which like letters of reference refer to like parts, and in which- Figure l represents an elevation of the door when closed; Fig. 2, an eleva-tion of the door when partially opened; Fig. 3, a horizontal section at w x in Fig. 1.

This invention is in the line of freight-car doors which are adapted to be slid upon horizontal-ways in front of the car-doorway, and relates to means for securing the door in place when shut, and also to mechanism for enabling the door to be forced open, against the resistance of any ordinary obstruction.

My means for moving the door consists, essentially, of a toggle-joint lever pivoted 'to the car-side above the door and also to the door, so that by the oscillation of the portion of the toggle-joint lever pivoted to the carside the door can be slid back and forth upon its ways. To secure the door when closed, I fasten the center or free portion of the togglejoint to the car-side, and also affix a horizontal bar to the rear edge of the door which shall project far enough to reach a fastening when the door is closed that the door just touches when wide open.

In the drawings, S represents a part of the side of a freight-car, and S the doorway in the same. A is the door adapted to be slid upon the ways W, as in ordinary freight-car doors. The toggle-joint consists of the lever B and the connecting-rod C. Said lever B is pivoted at B to the car-side just above the doorway S', and is prolonged at its opposite end into a handle, B2. rIhe connecting-rod C is pivoted to said lever at C. The other end of said rod C may be pivoted to the car-door A at its rear edge; but I usually, for reasons hereinafter explained, attach said rod to the rearwardly-projecting bar E. Said bar Eis rigidly fastened to the door A and projects therefrom for a distance about equal to the width of the door. By means of the perforated shelves F, secured to the car-side just ,beyond the'point at which the door A stops when wide open, the staples H,projecting from the bar E, and the pin G, adapted to be inserted through the perforations in said shelves Fand through a staple, H, the door A is made fast when closed. The two or more staples H permit the door to be fastened when partially open, as well as when entirely closed, thus giving access of air-currents should ventilation be desired.

To hold the lever B in place when the door is closed, and also to assist in ,holding the door to, I have a slot, D, in the lever, and provide a staple, D', adapted to project rigidly from the car-'side and through said slot when the door is closed. The pin D2, inserted through said staple, holds the lever B in place thereon. I generally make a pin-hole through the lower end of the pin G for the securing thereto of a padlock, I, to prevent the withdrawal of said pin.

As shown in Fig. l, the individual who wishes to open the door A can, after withdrawing the detaining-pins, reach up to the handle B2 of the lever B, and by hanging more orless of his weight thereupon easily force the door open. The position of said handle is so arranged as to give him the best possible advantage in depressing the same.

, The Yobject in having the connecting-rod C pivoted to the bar E instead of to the door is that said rod may be long enough to decrease sufficiently the inclination to an upward push which the toggle-joint arrangement tends to give to the door. rIoo much of said upward push might bind the door against its upper ways, W, and thereby obstruct its opening.

By however prolonging the connectingrod C and pivoting it to the projecting bar E at just the right point, as at C, the upward inclination which the toggle-joint gives to the door is sufficient to relieve the downward pressure of the door upon its ways, and thereby to decrease the friction. Thus by the leverage which the toggle-joint lever gives, and by its decrease of the door s resistance upon its ways, the car-door can be opened with but a slight amount of exertion, even should there be more or less hinderanoe thereto. Y

What I claim as my invention, and for which I desire Letters Patent, is as follows, to wit:

l. The combination, with the car-door A, of

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the lever B, pivoted at one end to the doorway and having its other end' formed' into' a handle, Bz, and the connecting-rod C, pivot-ed to said lever at an intermediate point thereof, and also pivotally joined to said door, substantially as and for the purpose specified. v

2. The combination, with the oar-door Ayof the lever B, pivoted to the doorway and having the handle B2 andl slot D, the staple D', fxedly projecting from the car into said slot, and the connecting-rod C, pivoted to said 1ever and to said door, as and for the purposes set forth.

3. In a freight-car door, the eombination', with the door A, adapted to slide upon horizontal Ways, of the lever B, pivoted tothe car-side above said door, the bar E, `proj'ejet-` 4 ing horizontally from the rea'r ed'gef said door and having staples H, thefconnectihgrod pivoted to said lever and tosid bar, the

shelves F, perforated to receive a pin, and the pi'n G, asand for the purpose set forth.

4. The car-door A, adapted to be slid upon horizontal ways, the horizontal bar E, projecting rigidly from said door and having one or more staples, H, the perforated shelves F, Yaixed to thecar-side, and the pin G, in combination with the lever B, pivoted to the carside above the door and having the handle B and slot D, the staple D', projecting from the ,car-side, and arranged to enter said slot, and

the pin D2.

Inl testimony that I claim the foregoing as my invention I have hereunto set my hand this 27th day of April, 1885.

JAMES J. LARGENT. In" prsente `of!-l Ai. B. Digium, A." KEITHLEY.

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