US1832016A - Drop door for railway cars - Google Patents

Drop door for railway cars Download PDF

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Publication number
US1832016A
US1832016A US509716A US50971631A US1832016A US 1832016 A US1832016 A US 1832016A US 509716 A US509716 A US 509716A US 50971631 A US50971631 A US 50971631A US 1832016 A US1832016 A US 1832016A
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US
United States
Prior art keywords
door
spreader
car
railway cars
doors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US509716A
Inventor
Garth G Gilpin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Metal Products Co
Original Assignee
Union Metal Products Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US358305A external-priority patent/US1813536A/en
Application filed by Union Metal Products Co filed Critical Union Metal Products Co
Priority to US509712A priority Critical patent/US1862522A/en
Priority to US509715A priority patent/US1863135A/en
Priority to US509711A priority patent/US1870905A/en
Priority to US509716A priority patent/US1832016A/en
Priority to US509713A priority patent/US1863134A/en
Application granted granted Critical
Publication of US1832016A publication Critical patent/US1832016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B61D7/18—Closure elements for discharge openings pivoted

Definitions

  • My invention relates to the construction of railway cars of the dumping or drop bottom type such as hopper cars, hopper gondola cars, drop bottom or general service gondola 5 cars or the like, having a door forming a part of the car for retaining the load therein, Which door is provided with hinges adjacent one of its edges and is capable of being dropped or swung open to discharge the load. Any means of raising the door to the closed position and any means for locking and releasing the door may be employed with my device. Such a door is commonly called a hopper door. My doors may also be used as drop endgates or doors for mill type gondola cars.
  • the object of the inventon is to provide a. door for a railway car with a substantially circular rib or reinforcement forming a drum head whereby a load upon the door normal to its load sustaining surface draws the metal toward the center of the circular rib which is resisted by the arcuate construction of the rib and to connect the circular ribs of adjacent doors in a car by a spreader, which spreader preferably is secured to two parts of each circular rib.
  • Fig. 1 shows part of a railway car incorporating my invention.
  • Fig. 2 is a section on line 22 of Fig. 1 showing the door and associated parts and also the spreader.
  • Fig. 3 is a plan view of one of the doors showing a circular rib and the spreader.
  • Fig. 1 shows a modified construction
  • FIG. 1 show my improved door applied to a hopper car wherein the entire car, or at least the major portion thereof, consists of a hopper with the lower portion thereof divided into a plurality of small hoppers or chutes, which chutes are provided with doors 9 swingably supported to a part of the car by hinges 10. Any convenient means may be used to close and lock the doors.
  • the form illustrated comprises a shaft 11 extending between opposite sides of the car which is mounted upon the center sills 12 and provided with an eccentric arm 13 connected to the spreader 1 1 by a connecting rod 15.
  • My improved door comprises a substantially rectangular body portion which is provided with a circular or substantially circular rib 21 forming a drum head wherein any vertical load imposed upon the door within the circular rib tends to draw the rib inwardly; in other words, to flatten the circle, which tendency is resisted by the arcuate construction of the ribs, as the force is resisted by a part of the circular rib which could be described as an arch.
  • the spreader 14 is secured to the door so as to transmit the raising force to the circular rib and preferably to two parts of each circular rib of each door.
  • circular I mean anything v substantially so; for instance, the hexagonal construction shown in Fig. 4.
  • each of said doors comprising a body with a circular reinforcing rib therefor, a spreader and a door raising mechanism associated with the spreader, said spreader secured to the door so as to transmit the raising force to the circular rib.
  • each of said doors comprising a body with a circular reinforcing rib therefor, a spreader, and a door raising mechanism associated With the spreader, said spreader secured to the door so as to transmit the raising force to two parts of the circular rib.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)
  • Wing Frames And Configurations (AREA)

Description

1931- ca. G. GILPIN 1,832,016
DROP DOOR FOR RAILWAY CARS Original Filed April 26. 1929 2 Sheets-Sheet l fnmmior:
Nov. 17, 1931. GILPIN DROP DOOR FOR RAILWAY CARS Original Filed April 26, 1929 2 Sheets-Sheet 2 Invenigr; Garth 6%0111 v Aflorn 7 Patented Nov. 17, 1931 UNITED STATES PATENT ()FFICE GARTH G. GILPIN, F RIVERSIDE, ILLINOIS, ASSIGNOR TO UNION METAL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE DROP DOOR ron RAILWAY CARS Original application filed April 26, 1929, Serial No. 358,305. Divided and this application filed January My invention relates to the construction of railway cars of the dumping or drop bottom type such as hopper cars, hopper gondola cars, drop bottom or general service gondola 5 cars or the like, having a door forming a part of the car for retaining the load therein, Which door is provided with hinges adjacent one of its edges and is capable of being dropped or swung open to discharge the load. Any means of raising the door to the closed position and any means for locking and releasing the door may be employed with my device. Such a door is commonly called a hopper door. My doors may also be used as drop endgates or doors for mill type gondola cars.
The object of the inventon is to provide a. door for a railway car with a substantially circular rib or reinforcement forming a drum head whereby a load upon the door normal to its load sustaining surface draws the metal toward the center of the circular rib which is resisted by the arcuate construction of the rib and to connect the circular ribs of adjacent doors in a car by a spreader, which spreader preferably is secured to two parts of each circular rib.
In the drawings:
Fig. 1 shows part of a railway car incorporating my invention.
Fig. 2 is a section on line 22 of Fig. 1 showing the door and associated parts and also the spreader.
Fig. 3 is a plan view of one of the doors showing a circular rib and the spreader.
Fig. 1 shows a modified construction.
The drawings show my improved door applied to a hopper car wherein the entire car, or at least the major portion thereof, consists of a hopper with the lower portion thereof divided into a plurality of small hoppers or chutes, which chutes are provided with doors 9 swingably supported to a part of the car by hinges 10. Any convenient means may be used to close and lock the doors.
Serial No. 509,716.
The form illustrated comprises a shaft 11 extending between opposite sides of the car which is mounted upon the center sills 12 and provided with an eccentric arm 13 connected to the spreader 1 1 by a connecting rod 15.
My improved door comprises a substantially rectangular body portion which is provided with a circular or substantially circular rib 21 forming a drum head wherein any vertical load imposed upon the door within the circular rib tends to draw the rib inwardly; in other words, to flatten the circle, which tendency is resisted by the arcuate construction of the ribs, as the force is resisted by a part of the circular rib which could be described as an arch. The spreader 14 is secured to the door so as to transmit the raising force to the circular rib and preferably to two parts of each circular rib of each door.
By the term circular I mean anything v substantially so; for instance, the hexagonal construction shown in Fig. 4.
I have shown and described the circular rib and several means of reinforcing the circular rib to better enable it to perform its function. However, any one or all of the several means may be used and still come within the scope of this invention.
The accompanying drawings illustrate the preferred form of the invention, though it is to be understood that the invention is not limitedto the exact details of construction shown and described, as it is obvious that various modifications thereof, within the scope of the claims, will occur to persons skilled in the art.
This is a division of my co-pending application Serial No. 358,805, filed April 26, 1929.
I claim:
1. In a railway car, the combination of a pair of doors hinged to the car for simultaneous operation, each of said doors comprising a body with a circular reinforcing rib therefor, a spreader and a door raising mechanism associated with the spreader, said spreader secured to the door so as to transmit the raising force to the circular rib.
2. In a railway car, the combination of a pair of doors hinged to the car for simultaneous operation, each of said doors comprising a body with a circular reinforcing rib therefor, a spreader, and a door raising mechanism associated With the spreader, said spreader secured to the door so as to transmit the raising force to two parts of the circular rib.
GARTH G. GILPIN.
US509716A 1929-04-26 1931-01-19 Drop door for railway cars Expired - Lifetime US1832016A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US509712A US1862522A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509715A US1863135A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509711A US1870905A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509716A US1832016A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509713A US1863134A (en) 1929-04-26 1931-01-19 Drop door for railway cars

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US358305A US1813536A (en) 1929-04-26 1929-04-26 Drop door for railway cars
US509712A US1862522A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509715A US1863135A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509711A US1870905A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509716A US1832016A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509713A US1863134A (en) 1929-04-26 1931-01-19 Drop door for railway cars

Publications (1)

Publication Number Publication Date
US1832016A true US1832016A (en) 1931-11-17

Family

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Family Applications (5)

Application Number Title Priority Date Filing Date
US509715A Expired - Lifetime US1863135A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509712A Expired - Lifetime US1862522A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509716A Expired - Lifetime US1832016A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509711A Expired - Lifetime US1870905A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509713A Expired - Lifetime US1863134A (en) 1929-04-26 1931-01-19 Drop door for railway cars

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US509715A Expired - Lifetime US1863135A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509712A Expired - Lifetime US1862522A (en) 1929-04-26 1931-01-19 Drop door for railway cars

Family Applications After (2)

Application Number Title Priority Date Filing Date
US509711A Expired - Lifetime US1870905A (en) 1929-04-26 1931-01-19 Drop door for railway cars
US509713A Expired - Lifetime US1863134A (en) 1929-04-26 1931-01-19 Drop door for railway cars

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* Cited by examiner, † Cited by third party
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US5384426A (en) * 1992-12-08 1995-01-24 Daicel Chemical Industries, Ltd. Process for the preparation of isopropyl acetate

Also Published As

Publication number Publication date
US1862522A (en) 1932-06-14
US1863134A (en) 1932-06-14
US1870905A (en) 1932-08-09
US1863135A (en) 1932-06-14

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