US978071A

US978071A - Pneumatic coupling.

Info

Publication number: US978071A
Application number: US?5990308A
Authority: US
Inventors: David B Stanley
Original assignee: Individual
Current assignee: Individual
Publication date: 1910-12-06
Anticipated expiration: 1927-12-06

Description

D. B. STANLEY. PNEUMATIC COUPLING. APPLIOATION FILED 001228, 1908.

Patented Dec. 6, 1910.

DAVID B. s'ra'ivLnY, on Martin rnarnm, rmnnsora.

4 rnnuma'rrocomine,

Application filed pot-char Specification of Letters Patent.

28,1908. may, erases.

Patented Dec. 6, 1910;

To all whom it may concern:

Be. it known that I,DAVID B. STANLEY, a

citizen of the United States, residing at and useful Improvements in Pneumaticv Maine Prairie, in the county of. Stearns and State of Minnesota, have invented new Couplers, of which the following is a specification.

' This invention relates to improvements in car couplings of the J anney type, and the main object of the invention is to provide a cou ler of this character adapted to be operate by air pressure, the sald air pressure being derived from the pneumaticsystem operatin the brakes.

iththe above and other ob ects in view which will appear as the invention ,roresses, the invention resides in provi ing the draw bar of the coupling with a suitable bo're having a communication with an air inlet pipe and being provided with a piston to'which is secured a wedge shaped member,

the piston being adapted to force the wedge shaped member into enga ement with suitable ears provided upon a ocking pin to diserwage the same from the tail of the knuckle an also swing receive the knuckle. of the coacting coupling whereby In'the accompanymg drawing there has been shown a simple and preferred embodistood that alterations reservoir ment of the invention, but it is to be underwithin thescope of the appended claims may be resorted to if desired. In the. drawing, Figure 1 is a top plan view of a coupler constructed in accordance I with the present invent-ion,

illustrating its connection with the air-cylinder and the method of controlling the entrancepf air to the coupler, the'bodyof the car being indicated by the dotted lines, Fi 2 is a central horizontal sectional view 0? the coupling.

Fig. 3 is a vertical longitudinal sectional view of the coupler-.1

In the accompanying drawing the numeral 1 desi nates anv auxilia air receptacle connecte throughthe medium of a pipe 2 with the mainbrake operating air system of the train, not shown.

1'*is provided with oppositely extendin pipes the knuckle open, the air exhausting through a suitable port, and theknuckle being in a position to 'iwitlit e couplers 4 at each endof the car. draw bar of the ,coupler, 4is provided witha suitable bore 5 communicating with, the central open portion of th'efhead ofthe coupler and being provided adjacent its rear transverse wall with a suitable nipple 6 con-' mailing a flexible pipe 7 with a suitable valve 8 secured to the'pipe 3 and communicating with the reservoir 1. The car body 9, indicated by the dotted lines illustrated in F .1 of the drawing is rovided with suitab e, eyes or brackets 10 a apted for the reception of a valve operating rod 11 which has its handle as indicated by the numeral 12 and in the usual manner beworking within a suitable The auxiliary tank or and having its upper portion provided with an L-shapedextensionor offset which is adapted to engage and retain the tail of the knuckle in locked position. The body portion of the coupling is also provided with a pin is forced upwardly ,and its L-shaped 0 set portion 20 away from the tail 15 of the knuckle 14, in a manner hereinafter to be described, will provide a suitable receptacle for the upper portion of the said locking pin. The upper portion of the locking pin 17 is provided with 'a suitable ear to which is pivotally connected a link 21, and the upper wall of the receptacle 19 is also provided with a suitable opening throu hwhich the upper portion of said link exten s. The link 21 is provided with a suitable eye 22 to which may be attached a suitable flexible element by which the locking dpin may be operated manually when desire By reference to Fig. 3 of the drawing, itwill be noted from the dotted lines illustratin the'position of the locking in 17 when released from the tail 15 of the uckle that the space between thetop wallof the chemouter end. r'ovided with a'suitable offset or' provided withthe usual bifurcated extending portions of coupler. The reduced tall' the lower portion of the head,

suitable chamber 19 which, when the lOCklIlflg 3, adapted to communicaa i having its inner end connected with a hrough the medium of a H v ber 19 and the lower wall or floor vof the knuckle is less than the length of the locking ,wall of the opening 18.

the nlet n pple toward the open pin 17, so that when this pin is positioned as representedby the dotted lines it'will be inclined at a slight angle, the-lower portion of the pin restim against a projection'23 formed across t e open mouth of the coupler. It will be also noted, by reference to the said Fig. 3 that the rea; lowerlwall of the recess or pocket 19 is in an approximately straight line with regard to the rear By this arranges ment,"whenthe'locking jaw of the knuckle is opened as indicated by the dotted lines of Figs. 2 and 3 of the drawing, it will be seen that the locking jaw of the coacting coupler will contact with the tail 15 of the knuckle and force, the same rearwardly.' When the tail 15'is swung a sufficient distance it will carry with it'the locking pin 17 and position I the same directly above the opening 18, thus allowing tht L-shaped upper portion of the pin to slide by gravity into'engagement wlth the tail of the knuckle.

Positioned within the bore .5 of the draw bar of the coupling, andnormally adjacent is secured a head 26 having a. bifurcated wedge shaped extending portion 27. The arms provlded by the wedge shaped extension of themember 26 are adapted to have engaged between them the locking pin '17.

he pin 17 is provided upon two of its opof the mouth of the coupling is also provided with suitable cut away portions provided in the lip 23 and adapted to serve as a guide for the lnclined portlons of the'member 26. 1 The operation of the device is as follows: hen it is desired to release the locking jaw or knuckle of the coupler, the valve 8 is operated through the medium of the rod 11 so as to allow compressed air to enter the bore 5 behind the piston 24:, which is forced mouth of the, coupler causing the locking pin 17, through the medium of the oppositely disposed extensions 28 normally restingupon the inclined facesof the member 26, to ride upwardly until the L'- shaped'extension of the locking member is isengaged from the tail 15 of the knuckle. As the Wedge sh farther forward travels the limit ofits scope the air contained within the bore 5 isexhausted through a suitable opening 29 provided by the draw eadof the coupler. When the tail 15 is viously' described.

ivithin the pipe? the tail of the knuckle to lock knuckle having municating by thepiston 24 is forced rearwardily into its initial position and the. locking pin will have its lower extremity positioned above and dropped withinthe opening 18 as pre- It is to be understood that immediately after the plunger 2% haspassed the port 29, the operator will close the valve 8, he having, of course, observed the opening knuckle,

and thus becomingiaware that the operating device has performed its function. The air and bore 5 will have ample time to escape H y, knuckle 14= is contacted by' knuckle, should main Within the ion forthe plunger 24.

Having; thus fully described the invention what is c aimed as new is:

1-. In a device of the character described,

a car couplerhaving a movable knuckle, a locking pin for the knuckle, an alt reservolr,

a connection between the reservoirand the coupler, and means. actuated by the entrance In a device for the purpose set forth, bination with a car coupler having a PIVOfGd knuckle comprising a locking jaw portion, a locking pin having an L-shaped upper portion adapted to engage the same, a movable piston: within the coupler, and means for admitting fluid within the coupler to operate the piston to raise the coupling pin out of engagement with the tail of the knuckle and to force the knuckle outwardly upon its pivot.

3. In a device of the character 'set forth,

a car coupler" providedwith a pivoted a locking-jaw and a tail portion, said coupler being provided with a chamber at its upper portion, the top wall of the chamber being provided with an opening, a locking pin comprising a'member having an L-shaped offset adapted to engage the tail. of the knuckle, a link connected with the locking pin'and extending through the openin provided by-the chamber, offsets upon t 'e locking-pin, the draw bar of the coupler being provided with'a bore comwith the head of the coupler, a slidable piston within the bore, a wedge shaped member connected with the piston and adapted to lie beneath the offsets of the locking pin, and means for admitting fluid to slide the piston andto raise the locking pin out of enga'ement with thetail of the knuckle and to force the locking jaw of the knuckle outwardly e combination with coacting car couing an L-shaped ofl'set portion adapted to engage with the tail of the knuckle and to be ositioned within the opening, a link pivota ly connected with the locking projecting) through the top of sald coupler,

the draw er of e said coupling being provided with a 'borehaving an outlet port, a

piston provided with a Elston rod within the bore, a wedge shaped ifurcated member connected with the piston, ofi'sets provided I :upon the lockin pin adaptedto rest upon the inclined wa s of the bifurcatedfmember, means for admitting fluid within the bore to operate the piston to cause the wedge shaped member to raise the locking pin out pin and,

lip of the lower portion of the mouth of the coupler, and means provided b the locking jaw of the 'coacting coupler or revolving of contact with the tail of the knuckle and arrange said ,pin in the upwardly extending v e shaped memthe knuckle upon .its pivot and causingthe lockin pin to drop by gravity to secure the knuckii of the first coupler in locked position.

In. testimony ture in presence of two witnesses.

DAVID STANLEY.

Witnesses: a

E. Pnox', CLYDE R. Summer.

- i whereof I afiix my signa-