US382597A - Steam-heating pipe-connection for cars - Google Patents

Description

' I ammmi o o- J EMERSON )STEAM HEATING PIPE GONNEOTION FOR-CARS. ,59'7. Patented May 8,1888.

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wi lmwmo NITED STATE PATENT OFFICE Y JAMES EMERSON, OF WILLIMANSETT, MASSACHUSETTS.

STEAM-HEATING PIPE-CONNECTION FOR" CARS.

SPECIFICATION forming part of Letters Patent No. 382,597, dated May 8, 1888.

Application filed December 14, 1887. Serial No. 257,836. (No model.)

. To all whom, it may concern.-

Be it known that I, J AMES EMERSON, a citizen of the United States, residing at Willimansett, in the county of Hainpden and State of Massachusetts, have invented new and useful Improvements in Steam-HeatingPipe-Connections for Oars, of which the following is aspecification.

This invention relates to steam-heating de vices for railway-cars, and pertains to steampipe connections between cars for uniting the ends of the steam-supply pipes thereof, the ob ject being to provide an improved coupling for the above-mentioned purpose; and the invention consists in the peculiar construction and arrangement of said coupling, all as hereinafter fully described, and pointed out in the claims.

In the drawings forming part of this specification, Figure l is a perspective view of a coupling for steam-heating pipe-connections between railway-cars constructed according to my invention, the hose-nozzle which acts in conjunction withsaid couplingnotbeingshown. in this figure. Fig. 2 is a longitudinalsection of said coupling on the line 2 2, Fig. 3, and also a longitudinalsection of one of the hosenozzles and of the end of the steam-suppply pipe of a car shown. connected to one end of the coupling, said figureshowing also the flexible hose-coupling (one end being shown in section) for uniting two couplings, and a second hose-nozzle in side elevation connected to one end of said. hose. Fig. 3 is a front elevation showing parts of said coupling incross-section on the lines 3 3, Fig. 2.

In the drawings, 2 is the coupling tube, which, with its directly connected parts, is made preferably of brass or composition metal, excepting that thehooklevers below described are made of iron or steel. The said coupling tube has formed on one end thereof the screwthreaded socket 3, which receives the end of a steam-supply pipe, 18, which is fixed under the car or cars with which said coupling is connected to convey steam through the same for warming purposes, said coupling-tube hav= ing the end thereof to which the flexible hose 17 is connectedinclined downward, as shown in Fig. 2. Said coupling-tube has thereon the fixed annular ring a, and its lower end has its annular groove, 8, in said sleeve.

inner border, 5, beveled to adapt'it to receive the end' of the hose-nozzle l5, thelatter hav-,

ing'the.end thereof which engages with the x therewith,the spoke or hand-wheel 7,whereby said screw-threaded sleeve is rotated on the i coupling-tube. To retain thesleeve 6 in proper operative position on thetube 2, a pin, 9, is fixed in said tube and has one end entering an screwed sleeve 6 has been placed on the coupling-tube in the position shown in Fig. 2, the aforesaid internally-beveled end of said tube is by a suitable instrument'turnedoutwardly toform a head, a, around the end ofthe same, for a purpose hereinafter described. A hook-carrying sleeve, 10, having a screwed socket, 12, engaging with the said screwthreaded sleeve 6, is al'soplaced on said couplingatube 2 before the aforesaid outturned border a is formed on the end of said tube, andthe sleeve 10 is capable of a longitudinal reciprocatingmoveinent on the coupling-tube by rotating said sleeve 6 by means of the wheel 7. The said sleeve 10 hasthe bosses 13 thereon, between the sides of which are pivoted three hook-levers, 14, in the position shown. The rear ends of said hook-leversextendin a line with longitudinal slots, which the rear ends of said lovers are curved, as shown in Figs. 1 and 2. A stud, 4, having a cam-shaped end, which is capable of engagement with the said rear curved ends of said under said ends and projects outwardly beyond the surface of said tube'within'theaforesaid slots in the sleeve 10 under the ends'of said hooks, the purpose of saidcarn-studs 4 being to cause the hook-levers 14 to have a vibratory motion when said sleeve 10 is moved hook-levers, is fixed 1n the coupling-tube 2 toward the hand-wheel 7, whereby the hooked ends of said levels are caused toapproach or move toward the 'axial line of the couplingtube, said levers havingat' the same time a movement with said sleeve 10, whereby their '5 After the I 85 are formed in the sleeve 10 thereunder, and Q hooked ends are drawn toward the end of the coupling-tube. WVhen the sleeve is given a reverse motion, whereby the hooked ends of the levers are made to move from the end of the coupling'tube 2, that portion of the under side of said hooks indicated by c, Fig. 2, comes into engagement with the aforesaid bead a on the end of said tube, and thereby the outer ends of said hooks are caused to swing outwardly from said axial line of the tube 2.

The said hose-nozzle has formed thereon, near the end thereof which enters and engages with the beveled end of the coupling-tube 2, an annular ring or collar, 16, with which the books on the outer ends of the levers 14 engage, and whereby when the sleeve 10 is given a movement on the coupling-tube toward the hand-wheel, as aforesaid, the end of said nozzle is forced into the end of the coupling-tube and there rigidly held until the hand-wheel 7 is turned to release it. The end of said nozzle 15 is preferably ground into the end ofthe coupling-tube 2, to form a steam'tight joint between said two parts when they are forced into connection, as above described; but, if desired, the end of the coupling-tube may be provided with an annular packing-ring, 19, of suitable vulcanized material, with which the end of the hosenozzle may be made to engage to form a tight joint, instead of grinding the parts, as aforesaid.

The coupling-hose 17, of suitably-vulcanized rubber, has in practice a nozz1e,-15, attached to each end thereof, as shown in Fig. 2, to adapt it to the requirements of the couplings of the adjoining ends of two cars.

In practice the screw-threads on the sleeve 6 and in the socket 12 on the sleeve 10 are made quite coarse, so that a comparatively slight rotary movement of the wheel 7 will impart a sufficient. degree of longitudinal movement to said sleeve 10 to effect the complete connection of the hose-nozzle 15 with the coupling-tube or its disconnection therefrom, such capabilities being essential for the purposes of rapid manipulation of the couplings in adding a car or cars to or separating them from a train.

The ends of the nozzles 15, which engage with the ends of the couplingtubes and have the said annular rings 16 thereon, are made to pass freely between the ends of the hooks on the levers 14, to avoid any inconvenience in connecting and disconnecting them, the relative arrangement of said parts being substantially as shown in Fig. 2. Thus, in coupling the hose-nozzle 15 there shown, it is placed in engagement with the end of the coupling-tube,

and the wheel 7 being given a slight rotary movement the sleeve 10 is quickly drawn toward said wheel, carrying the levers 14 therewith, and the rear ends of the latter are at the same time brought into engagement with the studs 4,whereby said hooks are made to engage with said ring on the hose-nozzle, thereby rigidly connecting said nozzle and couplingtube. A slight reverse movement of said wheel7 brings the parts of the coupling to the positions shown in Fig. 2, whereby the nozzle is disconnected.

The wheel 7 may be easily manipulated from the platform of a car for quickly disconnecting the hose-coupling therefrom by the use of a suitable hook which engages with the arms of said hand-wheel.

What I claim as my invention is- 1. The within-described coupling for steampipe connections between railway-cars, consisting of a coupling-tube, as described, having means for connecting the same with a steam-pipe, combined with a screwthreaded sleeve, 6, capable of a rotary motion on said tube, a sleeve, 10, having a screw-thread engagement with said sleeve 6, whereby said sleeve 10 has a longitudinal reciprocating movement on said couplingtube, a series of hook-levers pivoted on said longitudinallymoving sleeve, and a cam-stud fixed in said tube under the rear end of each of said levers, substantially as set forth.

2. The coupling tube 2, having the outturned bead a on its end, combined with the screw-threaded sleeve 6, having a hand-wheel thereon, the sleeve 10, having ascrew engagement with said sleeve 6, and the hook-levers 14, pivoted on said sleeve 10 and having engagement with said bead, whereby their hooked ends are swung outwardly, substantially as set forth.

3. The couplingtube 2, the screw-threaded sleeve 6, capable of a reciprocating rotary mo tion on said tube, the sleeve 1(),having a screw engagement with said sleeve 6, whereby it is given a longitudinal motion on said tube, the cam-studs 4, fixed in the tube 2, combined with the hook-levers14, pivoted on said sleeve 10, having their ends engaging with the ends of said studs, and a hose-nozzle capable of engagement with one end of said coupling-tube with which the hooks on said levers engage, substantially as set forth.

J AMES EMERSON.

Witnesses:

H. A. GHAPIN, G. M. CHAMBERLAIN.

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