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Publication numberUS509941 A
Publication typeGrant
Publication dateDec 5, 1893
Publication numberUS 509941 A, US 509941A, US-A-509941, US509941 A, US509941A
InventorsGeorge W. Perry
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Grain car-door
US 509941 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

, (No Model.) WI


No. 509,941, m Patented Dec. 5, 1893.

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SPECIFICATION forming part of Letters Patent No. 509,941, dated December 5, 1893.

Application filed January 28. 1893.

To all whom it may concern.-

Be it known that I, GEORGE W. PERRY, a citizen of the United States, residing at Peoria, in the county of Peoria and State of lllinois, have invented certain new and useful Improvements in Grain Oar-Doors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in looks for grain doors for railway cars.

The object of the invention is to provide a lock for grain doors which shall be easy of operation, simple and durable.

The invention is clearly set out in the annexed drawings in which- Figure 1 represents perspective view of the outside of the door showing position of the lock. Fig. 2 is a plan view of the door, in partsection, showing the look.

In the following description, letters of reference correspond with letters on the draw- Ines.

The grain door is indicated by the letter A and shown in place within a car in the Fig. 1. The door may be held in place Within a car by proper guides for doors of this class.

G represents an upright lever having its fulcrum at a point H on apivot. A short extension of arm G' made integral with the said lever on either side of said pivot H pivotally supports one-end of a looking-bar K which slides horizontally in a bracket L bolted to the door. The free outer end of each of the rods K is adapted to enter indentations in cient length below the pivot H to enter a slot M in a keeper N secured to the floor of the car.

Serial No. 460.059. (No model.)

A latch I is pivoted to the lever G, which engages with notches J and J in a sector J so that in either position the lever may be thrown, the latch will fall into one or the other of the notches and there lock the lever until the latch is released.

The operation of the invention is as follows: When the door is locked as shown in Fig. l and it is desired to unlock it, all that is necessary, is to raise and throw the latch I to the opposite side and then throw the lever G to the right until the latch drops into the notch J as indicated by dotted lines in Fig. 1. This operation draws the bars K K from theirindentations in the jainb of the door and raises the lower end of the lever out of the slot M, and as the door is then free, all but the loose hangings by which the door is hung, said door may be opened.

I claim- In a grain-door, the locking mechanism, comprising the upright pivoted lever G having its fulcrum located at a point below the middle of the length of said lever, and on the door, at a point equi-distant from either end and near the lower edge thereof,said lever having the lower depending portion below the fulcrum, the arms or extensions Gon either side of the fulcrum and made integral with said lever, the horizontal locking arms K K having one end pivotally connected to the said arms G, the brackets L forming guides for said locking bars K, the sector J Zand the latch I pivoted to said lever G and all working together in the manner and for the purposes herein set forth and described.

In testimony whereof I affix my signature in presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2551832 *Aug 28, 1945May 8, 1951Edmonds Cleave FLocking mechanism for vehicle end gates
US2675976 *Jan 16, 1946Apr 20, 1954Fred GerardineComposite vehicle
US4195866 *Nov 16, 1978Apr 1, 1980General Motors CorporationLock for removable roof closure latch mechanism
US6957513Nov 7, 2002Oct 25, 2005Newell Operating CompanyIntegrated tilt/sash lock assembly
US7013603Nov 7, 2002Mar 21, 2006Newell Operating CompanyIntegrated tilt/sash lock assembly
US7070211Nov 7, 2002Jul 4, 2006Newell Operating CompanyIntegrated tilt/sash lock assembly
US7481470Nov 15, 2005Jan 27, 2009Newell Operating CompanyIntegrated tilt/sash lock assembly
US7607262Jun 8, 2004Oct 27, 2009Newell Operating CompanyIntegrated tilt/sash lock assembly
US7976077Jul 26, 2006Jul 12, 2011Newell Operating CompanyIntegrated tilt/sash lock assembly
US8020904Jul 26, 2006Sep 20, 2011Newell Operating CompanyIntegrated tilt/sash lock assembly
US8132369Sep 25, 2009Mar 13, 2012Newell Operating CompanyIntegrated tilt/sash lock assembly
US8205920Apr 28, 2008Jun 26, 2012Newell Operating CompanySash lock with forced entry resistance
US20030110698 *Nov 7, 2002Jun 19, 2003Polowinczak Allen D.Integrated tilt/sash lock assembly
US20090265997 *Apr 28, 2008Oct 29, 2009Newell Operating CompanySash Lock With Forced Entry Resistance
US20100132263 *Oct 21, 2009Jun 3, 2010Newell Operating CompanyIntegrated tilt latch and sash lock assembly
Cooperative ClassificationE05C9/043