Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS195400 A
Publication typeGrant
Publication dateSep 18, 1877
Publication numberUS 195400 A, US 195400A, US-A-195400, US195400 A, US195400A
InventorsEdmond O. Bichakd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in chain and belt couplings for railroad-car brakes
US 195400 A
Previous page
Next page
Description  (OCR text may contain errors)


INVENTOR ATTORNEY mmmmmmmmmmmmmmmmmmmmmmm new. a c.




Specification formingpart of Letters Patent No. 195,400, dated September 18, 1877; application filed April 14, 1877.

To all whom it may concern:

Be it known that I, EDMOND ()VIDE RIGH- ARD, of St. Roche, in the Province of Quebec and Dominion of (Janad-a," have invented a new and valuable Improvement in Oouplers for Oar-Brake Chains and Hopes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a longitudinal central section of my invention. Figs. 2, 3, and 6 are sectional details; and Figs. 4 and 5 are perspective detail views.

This invention has relation toimprovements in devices for coupling the brake. chains or ropes of railroad-cars when the brake-shoes are applied at one end of the train, and for other purposes; and it consists in couplingheads, the one male and the other female, that are applied upon the adjacentends of the brake ropes or chains, adapted to engage the one with the other, and provided, respectively, with a spur and recess adapted to interlock the one with the other, and held to such interlocking by a spring, all as hereinafter shown and described.

In the annexed drawings, the letter A designates the male, and B the female, head of my improved coupler. These are, respectively, secured to the ends of the brake chains or ropes in any suitable manner.

The female coupling B has a recessed chamber, tt,.extending a sufficient distance inward, and provided with two opposite offsets, a a, upon its front edge that are beveled or curved inward and extend at or about one-half the depth'of the chamber. These offsets have upon their heels a notch, b, the object of which will hereinafter become apparent.

A represents the male coupler, having upon its rabbeted front end two opposite dovetailed ofl'sets, c c, that are adapted to pass between the ofisets a a of the female head. These offsets have upon their heels each a spur, d, that is adapted to be received in the notch 11 aforesaid.

The operation of my coupler is as follows The reduced end e'of the male head is passed in to the chamber at, its offsets c 0 being inserted between those a a of the female head, and forced inward until they pass them. The male head is then turned one-fourth round, when the notches b and spurs (1 will be opposite each other. These latter being engaged the one with the other, the coupling is complete.

In order to prevent the offsets a, and c c, which in this position are interlocked, from becoming disengaged from each other by the casual turning of the heads and escape of spurs d from the notches b, I use the following: A headed bolt, 0, is passed into an axial oriiice, '5, in the end of the mail head, and confined therein by means of a screw, f, that extends through the neck of the head into a longitudinal slot, y, in the bolt. The latter is thus allowed an extent of endwise play proportionate to the length of said slot, and is forced outward from its recess by means of a spring, s, that is arranged on the said bolt, and compressed between the head thereof and a shoulder of the recess in which the said bolt works. When the heads are coupled the head of the bolt hears forcibly against the rear end of the chamber of the female head, and compresses the springs aforesaid, which thus prevents the disengagement of the spurs fronithe notches and an uucouplingof the head. These heads will be made of any suitable metal, and will have ridges 1 upon their outer surfaces, which serve as guides at night to indicate when the spurs and notches aforesaid are in proper position for engagement with each other. Where wire ropes are used as the medium of applying the brakes the end of the rope is passed through an opening, it, of suitable size in the rear wall of the couplers, divided into four strands or branches, more or less, and each branch passed outward through an aperture, n, in the side of the coupling-head. Metallic wedges m are then driven in to secure the said strands to the head, and the projecting ends of the strands evenly cut oft. Ialso drive a wedge, 0, having a broad head, 1), between the branches of the rope at the bottom of the chamber, so as to jam it against the wall of the orifice k aforesaid. The headed bolt 0 then has a bearing upon the head of this wedge.

Instead of wedging the ends of the strands. as aforesaid, to the couplers, they may be drawn through the orifices n and spliced in the usual manner to the body of the rope. In this case the couplers will have grooves 7' formed in rear of said orifices for the reception of the strands, in order not to increase unduly the size of the coupler. Where chains are used to apply the brakes the couplingheads will have each a metallic ring secured thereto in any suitable manner, to which the ends of the brake-chains will be properly se cured.

When the wire ropes are properly secured to the coupling-heads, as above described, they are dipped into melted tin or other suitable metal, so as to make the union of the rope and couplers practically solid.

lElaving .thus described my invention, I c aim- 1. A coupler for chains or ropes consisting of the male and female coupling-heads A B, having, respectively, the spurred offsets o 0 and notched ofi'sets a, 0., adapted to interlock the one with the other, substantially as specified.

2. The female chambered head B, having spaced ofl'sets a a, provided with notches b, in combination with the male head A having spaced ofisets c o and spurs d, a bolt, 0, and a retainer-spring, s, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.


Witnesses P. FALING, Orms. A. PARENT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2507932 *Sep 5, 1947May 16, 1950Nicholas J PopowichThumb turn button
US2771768 *Sep 6, 1955Nov 27, 1956Tudor Bert ETorsionally resilient annular fastening member
US2815554 *Jan 17, 1955Dec 10, 1957Pieper Chester RFastening device
US2871691 *Dec 8, 1955Feb 3, 1959Bacon John HKey ring
US3036351 *Apr 22, 1960May 29, 1962Root Fred ASwivel rope connector
US3234615 *Feb 25, 1963Feb 15, 1966Louis L MartinezTensional connector
US3345710 *Feb 26, 1965Oct 10, 1967HydranauticsLocking disconnect coupling
US3402953 *Oct 23, 1965Sep 24, 1968Karl J. KollmannDisconnectable coupling
US4158457 *Nov 30, 1977Jun 19, 1979Hydro Paul JJump rope handles
US4505139 *Nov 15, 1982Mar 19, 1985Comfort Auto Industries, Inc.Automobile roof panel lock
US8069539Sep 10, 2007Dec 6, 2011Joubert ProductionsUniversal end fitting and fastener assembly comprising such an end fitting
US8672002May 18, 2009Mar 18, 2014The Finding Ip Holding Company LlcKey locator
EP1906031A1Sep 14, 2007Apr 2, 2008Joubert ProductionsFastening device for universal attachment and attachment assembly comprising such device
Cooperative ClassificationF16G11/04