US505836A - Car-door - Google Patents

Description

(NoModeL) J. LA FORE.

OARVDOORF No. 505,836. Patented Oct. 3,1893.

WIZWESSES l/VYEWZ'OZ? John lei/fore I UNITED STATES PATENT OFFICE.

JOHN LAFORE, OF ARGENTA, ARKANSAS.

CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 505,836, dated October 3, 1893.

Application filed June 28, 1893. Serial No. 479,055- (No model.)

To aZZ whom it may concern.-

Be it known that 1, JOHN LAFORE, a citizen of the United States, residing at Argenta, in the county of Pulaski, State of Arkansas, have invented certain new and useful Improvements in Car-Doors, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention is designed more especially for use in connection with doors for refrigerator cars, but may be applied to ordinary freight cars, the door being adapted to rest within the opening in the car and be flush with the outer surface thereof when said open.- in g is closed. It is also adapted to be removed laterally onto guard rails on whichit can be made to slide. l

The objects of my improvement are to pro .vide simple, reliable, and inexpensive means to operate the door and secure it in a closed position. I attain these objects. by the construction. illustrated in the accompanying drawings in which- Figure 1 is a front view of a portion of the side of a car provided with a car door operated and retained in accordance with my invention, the door being shown closed in said figure. Fig. 2 is a horizontal section of the same, taken on line a: m of Fig. 1. front view of a portion of the side of a car provided with a door supported and operated in accordance with my invention, the opening.

in the side of the car being shown open. Fig. at is a perspective view of one of the angular levers connected to one of the crank rods used to shift the door out of, and into the opening made for its reception, in the side of the car. Fig. 5 is a perspective View of the latch carrying frame, the latch, and the guides forthe angular levers. of the door carrying base plate. Fig. 7 is a vertical section on line y y of Fig. 1 but on a larger scale showing. the door, its frameand the door-carrying base plate and the guide rails for said base plate and door. Fig.8 is a perspective View ofthe door controlling handlever and its connecting rods.

In said drawingsArepresents a portion of the frame of one of the sides of the car.

Fig. 3 is a said frame are secured horizontally the guide rails B and B by means of bolts or screws passing through lugs b and b projecting re spectively from the' tops and bottoms and the ends of said rails. The rails B and B are made of trough-like form, with the horizontal portion perforated for the escape of rain or snow therethrough. The pendent edges of the trough B serve as guides for narrow plates 0 secured to the under side of the door guiding plate 0, while the upper edges of the trough B serve as guides for small plates a secured to the top of the door-carrying base plate 0 Said plate 0 is received within the sides of the trough B while the small plates 0 have their ends resting upon the edgesof said trough B The plates 0 may be made integral with the base plates 0 or be riveted thereto.

The door D is preferably made of wood, but it is provided on its outer face with a fiat-bar metal frame D the edges of which project beyond the edges of the door, and said frame is thus adapted to fit closely and substantially air tight against the face of the car surround ing the dooropening A .The door D is of such size as tofit closely within said opening A when it is to be closed. To push the door D within said opening A to close it, or remove plate 0 the latter thus supporting the door. Fig. 6'is a perspective view 1 the base plate 0 said crank arms have adja- Tov retain the lower crank arms 6 united to cent to their outer ends, and pendent therefrom, pins 6 that are received in slots 0 formed in said base plate parallel with, and close to, its front. The top guide plate G has also slots therein (similarly formed and lo cated as the slots 0 in the base plate 0 to receive pins e projecting vertically from the tops of the crank armse As the vertical rods e are so journaled to the door that they cannot be forced away from each other; if the outer ends of their crank arms are forced away from each other with their pins 6 e traveling toward the outer ends of the slots 0 of the plates 0 and C the tendency of the rods 6 will be to occupy a position perpendicularly above said slots 0 and to carry the front edge of the door D toward said slots, and thus remove said doors from within the door opening A in the side of the car. This outwardly lateral motion of the crank arms e e is accomplished by a series of connecting rods and of levers pivoted to the outer face of the door D in a manner that will now be described. To the outer face of said door is first secured a T shaped bearing plate F used to support and guide other parts. To each of the upper branches of said plate, the upper ends of levers G are pivoted at g. The lower end of each of said levers is bent forward at a right angle to its body to form an arm G2 that has pivoted to its front extremity at 9 one end of a connecting rod h, and the opposite end of said connecting rod is pivoted at g to the crank arm e of each vertical rod e.

To move the lower end of each lever laterally an equal distance, a hand lever I is pivoted at f to the lower portion of the plate F and at equal distance above and under said pivotal point f, connecting rods 2' have one end pivoted at i to the hand lever I, while their opposite ends are pivoted at 2' to the levers G. The upper end of the lever I has an arm I projecting forward from its face that is used as a handle to move it in an arc of a circle, and thus operate on the levers G. The arm I has transversely across it a slot 1' to receive the lower end of a latch-bolt f that is suspended from a bracket F on the front of the plate F. Said latch-bolt is retained connected to the bracket F by means of a small pin projecting forward from said bracket and passing through a slot made lengthwise of said latch-bolt. The latch-bolt f has a forward lug by which it can be lifted from engagement with the slot 2' of the hand lever. The handle of said lever has a small perforation 2' to receive the wire of a lead (or other) seal that is also made to pass through a small perforation in the forward end of the bracket F".

To guide the lower portions of the levers G close to the face of the door D, a metal strip k is secured to the lower bearings of the rods e in front of said levers G. Said levers are also guided in their middle portions, behind a segmental plate F secured to the front of the bearing plate F. The front face of the plate F serves also as a guide for the upper portion of the hand lever I and its face is provided on one side of its center with a recessed lug F to arrest said hand lever at the upper end of its course, under the latch-bolt f To make sure that the travel of the door will be squarely across the plates 0 and '0 when pulling said door out of the door opening A or when pushing it into said opening, each small plate a secured upon the plate 0 at each end thereof, is provided with a slot 0 to receive a pin projecting from the bottom edge of two small plates (1 secured to the bot tom portion of the frame D of the door D. The top portion of the frame D has also in the center thereof a small plate (1 provided with a pin on its upper edge that enters a slot 0 (like 0 in Fig. 6), in a small plate a secured centrally to the under side of the door guiding plate 0.

Having now fully described my invention, I claim- 1. The combination of the side of a car having an opening A therein, trough shaped guide rails secured to said car above and under said opening, plates 0 and 0 received within thetrough of the guide rails and having slots 0 lengthwise thereof and plates 0 crosswise thereof, the latter received upon the edges of the guide rails, with a door, two vertical rods e retained in hearings on said door and having crank arms on each end, and upon said arms, pins received within the slots 0 substantially as described.

2. The combination of the side of a car having an opening A therein, trough shaped guide rails secured to said car, plates 0 and 0 received within the trough of the guide rails, plates 0 crosswise thereof and having slots 0 therein, said plates 0 being received upon the edges of the guide rails, with a door having a metal frame D secured upon its face, plates d attached to the frame D and having projecting from their edges, pins received in the slots 0 substantially as and for the purpose described.

3. The combination of trough shaped guide rails, plates 0 and 0 received therein and having slots 0 lengthwise thereof, a door,

two vertical rods 2 retained in bearings on said door and having crank arms on each end, pins 6 projecting from the crank arms and received within the slots 0 connecting rods pivoted to the crank arms at one end and at the other end to levers pivoted to the door substantially as described.

4. The combination of trough-like guide rails, plates received therein and having slots 0 lengthwise thereof, a door, two Vertical rods 6 on said door and having crank arms on their ends, pins 6 projecting from the crank arms and received within the slots 0 connecting rods having one end pivoted to the crank arms and the other end to levers G pivoted on the door, a hand lever having its pivot between the levers G, and connecting rods uniting the hand lever to the lever G substantially as described.

5. The combination of guide rails, plates thereon having slots 0 lengthwise thereof, a door, two vertical rods e on said door and having crank-arms and eccentric pins, con necting rods uniting said crank-arms to levers G pivoted on the door, a bearing plate F In testimonywhereof I aflix my signature in between said levers, a bracket on said plate presence of two Witnesses. F, a latch-bolt suspended from said bracket,

a hand lever I pivoted on the plate F and JOHN LAFORE' 5 having a slot for the reception of the latch Witnesses:

bolt, and connecting rods uniting it to the JOHN T. ANDERER,

levers G substantially as described. D. H. LYLES.

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