US1157124A

US1157124A - Grain-car door.

Info

Publication number: US1157124A
Application number: US86007614A
Authority: US
Inventors: Martin A Ruble; Carl M Stevens
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-09-03
Filing date: 1914-09-03
Publication date: 1915-10-19
Anticipated expiration: 1932-10-19

Description

M. A. RUBLE 61 C. M. STEVENS.

GRAIN CAR DOOR.

APPLICATION FILED SEPT. 3. m4.

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M. A. RUBLE & C. M. STEVENS.

GRAIN CAR DOOR.

APPLICATION FILED SEPT. 3. x914.

2 SHEUS ''SHEET 2.

Patented Got. 19, 19'15.

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UNITED STATES PATENT oEEIcE.

MARTIN A. RUBLE AND CARL M. STEVENS, OF ESMOND, NORTH DAKOTA.

GRAIN-CAR DOOR.

Specification of Letters Iatent.

Patented Oct. 19, 1915.

Application and September a, 1914. Serial No. 860,076.

To all whom it may concern:

Be it known that we, MARTIN A. RUBLF. and CARL M. S'rEvExs, citizens of the United States, residing at Esmond, in the county of Benson and State of Xorth Dakota, have invented certain new and useful Improvements in Grain-Car Doors; and we do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art tov which it appertains to make and use the same.

Our invention relates to improvements in grain car doors and more particularly to those of the flexible vertically movable type.

' The main object of the invention is to provide, in connection with a door of the above mentioned character, a pair of combined door guiding and clamping members whereby said door may be readily guided in its upward movements and rigidly clamped in any one of its adjusted positions.

A further object is to provide coacting wedging members on the door and on the sill of the door frame, said members acting to effectually prevent any leakage of grain when the door is in either raised or lowered position.

Yet another object of the invention is to.

construct the entire device in the most simple manner consistent with its proper proportion.

With the above and minor objects in view, the invention resides in certain novel features of construction and combination herein described and claimed and shown in the drawings wherein:

Figure 1 is a side elevation of a portion of a grain car equipped with a door constructed in accordance with our invention; Figs. 2 and .3 are vertical sections taken on the line 23 of Fig. 1 sho ing respectively the raised and lowered positions of the door; Fig. 4 is a horizontal section taken on the line 44 of Fig. 2;..Fig. 5 is a similar view .taken on the line 5 -5 thereof; Figs. 6 and 7 are fragmentary rospective views of sections of the. door employed respectively at the upper [and lower ends thereof; Fig. 8 is a detail vefitical section showing the form of ratchet lever, preferably employed as hereinafter set'forth} and Fig. 9 is an edge view of a portion of the door.

In the accompanying drawings, we have shown a portion of the grain car C which includes the usual longitudinal sills S, and transverse sills s, the usual floor 7' supported upon said sills, door frame F, and sliding door D. p

The construction so far described forms no part of the present invention and is simply illustrated for the purpose of disclosing its application. Since the construction em-. ployed at each side of the door is identical, we have illustrated that located upon one side only.

Coming more particularly to the details of the invention, a pair of upright wear plates 1 are secured by means of screws 2 or the equivalents thereof, to the inner surfaces of the upright sides of the frame F, said plates extending from the top of said frame to the bottom thereof as clearly seen in Figs. 2 and 3 and being equipped with upright guide rails 3 on their inner edges, said rails being secured to said plates in any suitable manner but being preferably formed integrally therewith as clearly shown in Fig. 4. By reference more particularly to Fig. 4 it will be seen that the plates 1' are provided with threaded ears 4 which project toward the opposite ends of the car, said threaded ears being designed for a purpose to be described.

Spaced outwardly from the fixed guide rails 3, are movable guide rails 5 which contact with the plates 1 and which are provided with apertured ears 6 lying parallel with the threaded ears 4, said ears 6 pro jecting through guide notches 7 formed in the outer edges of the plates 1 and receiving rotatably. in their apertures, unthreaded ends of transverse clamp screws 8 whose threaded ends are engaged with the threaded openings in the ears 4 whereby, when said screws 8 are rotated by double actingratchet levers 9 (constructed as seen in Fig. 8 or the equivalents thereof, the movable rails 5 will be moved inwardly or outwardly according to the direction in which said screws are retated.

As most clearly seen in Figs. 2 and 3, the floor f is provided with a longitudinal slot which is located adjacent the sills S, while ongitudinal plates 10, are secured to the mounted, between the fixed and

movable guide rails

3 and 5, is a flexible door 12-, said door being here shown as constructed of a plurality of bars or plates 13, 13, and 13", said bars or plates being provided with inter-engaging tongues and grooves on their adjacent edges and being loosely connected by pivoted links 14 secured to their oppositeends.

The bar 13 which is located at the extreme upper end of the door 12, is provided with longitudinal ribs 15 on the inner and outer sides of its upper end, said ribs terminating adjacent the inner edges of the

guides

3 and 5 and being beveled on their under sides to closely engage the upper halves of the V- shaped .wedging ribs 11, when the door is in lowered or inactive position.

The bar 13 which is located near the bottom of the door 12, is provided with longitudinal wedging ribs 15 on its lower corners, said ribs 15 being beveled on their upper sides to snugly engage the lower halves of the V-shaped wedging ribs 11, when the door is in raised position. It will be noted by reference to the drawings, that the ribs 15 likewise terminate adjacent the inner ends of the

guides

3 and 5. By thus constructing the bars 13 and 13 leakage of grain at the lower end of the door or when unloading the grain with the door in lowered position, is positively prevented. This is an extremely important feature of our invention.

For the purpose of moving the door 12 upwardly or outwardly, we may employ any appropriate mechanism but preferably provide a longitudinal shaft 16 which 'isrevolubly mounted in certain of the sills 5-, said shaft being located directly above transverse guides 20 which are designed to receive the door 12 when the same is in lowered. position. The shaft 16 is provided with one or more star wheels 17 and with a. double acting ratchet lever 18, which is constructed in the same manner as the lever 9 shown in Fig. 8. The teeth of said wheels 17 are designed to engage the inner adjacent edges of the various bars of the door 12, said edges being beveled or rounded for-this purpose as clearly seen in Figs. 2 and 3. Since the inner rib 15 on the bar 13*, lies in the path of the teeth of said wheels 17, said rib is notched as indicated at 19 thereby to receive said teeth.

lVith the parts as above described, the ratchet lever 18 may be oscillated thereby causing the wheels 17-to move the door 12 upwardly or downwardly 'as the case may be, it being understood that the movable rails 5 now stand in retracted position.-

"wedged snugly between the coacting portions of the ribs 11 thereby effectually preventing leakage of grain. Both movable rails 5 are now moved inwardly to clamp the 'fl'it edges of the door whereby leakage of grain at any point is positively prevented. When unloading the car, it will be evident that the door must be lowered, in which position'the ribs 15 will wedge between the coacting portions of the ribs 11 thereby preventing leakage of grain at this time.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of our invention will be readily understood without requiring a more extended explanation.

Havin thus described our invention, What we desire to secure by Letters Patent is:

1. The combination with an upright rectangular frame and a Yertically movable closure therein, of upright flat plates secured to the inner sides of the upright side bars of the frame and continuing throughout the length thereof, said plates having notches in their outer edges, upright rigid clamping rails carried by the inner edge portions of the plates and continuing throughout the length thereof, upright movable clamping rails contacting with the outer edge portions of said plates and continuing throughout the length thereof, perforated ears projecting laterally from said movable rails through said notches in the plates, horizontal scrr vs revolubly mounted in and held against longitudinal shifting in said ears, threaded ears formed on the outer sides of said'plates and into which said screws are threaded, and means for rotating said screws, the edges of the closure being slidable between the fixed and movable rails.

52. The combination with an upright rectangular frame having a longitudinal slot in and continuing throughout the length of its sill, and a vertically movable closure in said frame, the lower end of said closure depending through said slot, of a pair of flat plates secured to the top of said sill on opplates into the'slot, said flanges being subset our hands in presence of two subscrihing stantially V-shape in cross section and-hav- Witnesses. ing the outer sides of their angles disposed inwardly adjacent the closure, and means on the upper and lower ends of said closure to wedge between said flanges, when the closure Witnesses:

is open or closed. A. J. ENGEL,

In testimony whereof We have hereunto E. C. CRAIG.