US1078781A - Automatically-opening car-diaphragm. - Google Patents

Description

APPLICATION FIL'ED MAR.20, 1913.

Patented Nov. 18, 1913.

mj/E 7%957? gall/m COLUMBIA PLANOGRAPH cu, WASHINGTON, n, c.

-..' ITE STATES PATENT OFFICE.

WILLIAM H. FORSYTH, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CURTAIN SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

. Specification of Letters Patent.

Application filed March 20, 1913. Serial No. 755,573.

SYTH, a'citizen of the United States, residing at Chicago, in the county of Cook and State 1 of Illinois, have invented certain new and useful Improvements in Automatically-Opening Car-Diaphragms, of which the following is a specification.

In many styles of railway cars it is customary to use extensible diaphragmswhich are collapsible andaccordion-shaped. It is often desirable or necessary to tilt the outer faceplate to which the diaphragm is at tached in order to obtain access to the buffer mechanism of the car. Heretofore, considerable difliculty has been experienced in thus tilting the face plate on account of the fact that when this operation is performed the plaits of the diaphragm are very. apt to become torn. V

In the co-pending application of Stanley W. Midgley, Serial No. 691,341-7, filed April 17, 1912, a diaphragm is described in which many of the faults of the prior construction have been overcome, since provision is there made for having at least one of the plaits in each leg of the diaphragm composed of two separate pieces of fabric, which are attached to each other by means of studs, in

the ends of which are placed cotter pins. 7

Patent '#1,056,407 granted to me March 18,.

1913, I provide at least one of the plaits in each leg of the diaphragm with a slit which extends tothe bottom of the diaphragm.

The edges of these slits are connected by fastening devices, which are automatically released when the outer face plate is tilted, and one edge of the slit is thereby forcibly pulled from the other edge. In this way it is impossible for the diaphragm to become torn or injured through the negligence of a workman. By the present invention, I provide not only for the automatic release of the parts, but also against the accidental separation of the edges of the slits by reason of relative movement of the diaphragm plait due to swaying or jolting of the cars, or to bufling and draft strains. These and 1 other advantages of my invention will be H. FOR

more readily understood by reference to the accompanying drawings, which represent a preferred embodiment of my improvements, and in which,

Figure 1 is a longitudinal vertical section through the end portion of a car. Fig. 2 is a transverse vertical section taken on the line 22 of Fig. 1. Fig. 3 is an enlarged horizontal cross section on the line 3-3 of Fig. 2. Fig. 4. is an enlarged horizontal section showing the construction of one of the fastening devices; and Fig. 5 is a section on the line 5-5 of Fig. 4;.

To one face of the end wall or post 10 of the car is fastened, by means of a metallic strip 11, one end of aninverted U-shaped accordion diaphragm composed of a plurality of inverted U-shaped strips of fabric '12 which are fastened together along their longitudinal edges in any suitable manner, as, for example, by'the binding strips 13. Near the center of the diaphragm, one of the plaits Patented Nov. 18, 1913. i

thereof is allowed to remain open at its.

lower portion, thereby forming the slit 1 1 between the edges of the fabric 12. To the edges of the fabric adjacent to the slit 1% are attached a plurality of fastening devices represented as a whole by 15.

Any suitable type of fastening device the parts of which become separated only on the application of a pull exerted on one certain edge of one part in a direction away from the opposite part may be used in connection with my device, but one preferred type of fastening device is illustrated in Figs. 4 and 5. This fastening device comprises two members, one a shaft 16 having a head 17 and a stud 18 presenting the fiat shoulder 19. Engaging the short shaft or shank 16 are the washers 20 which engage opposite surfaces of the fabric 12. The material 12 on the opposite side of the slit 14 is clamped between the parts 21 and 22 of the other two-part fastening member which is adapted for cooperation with the stud 18. The part 22 is inthe nature of a head secured to the neck 23 of the part 21, the part 21 is shell like and has in the wall 24: an opening 25 adapted to pass the stud 18 and within the shell about the margin is arranged a spring 26 the ends of which extend in substantially parallel relation across the opposite sides of the opening 25 and are then deflected toward each other so as to present substantially a neath that side of the shell 21 corresponding I to the open end of the U the stud 18 readily separates from the shell 21 the reaches of the spring riding up on the periphery of the stud but if the shell be tilted from that side corresponding to the closed end of the U, the deflected ends of the spring engage bee .neazth the shoulder 19 and the device is,

locked against separation, and likewise if the shell be tilted from either side of the U, separation being effected only when tilted at E a 2 means being separable only by force applied the open end of the U.

:To the front end of the diaphragm is at; tached an outer face plate 27of the usual ,and well known construction, the end of; this face plate cooperating with the buifeiy mechanism of, the car represented generallyi When it is desired to tilt the outer face? plate 27 into the position indicated in dotted; lines in Fig. 1 so as to obtain access to the; buffer mechanism 28, the edges of the fabric' '12 on opposite sides of the slitli are sepa .rated from each other throughout the length ofsaid slit by the tilting of the face plate, the same swinging forwardly and upwardlyf in a vertical plane. The shells of the fastening devices are attached to the edges of the fabric with the open end of the spring U downward so that in tilting the face plate. the stud and shell are separated automatireally, whereas they will not separate by reason of any movement of the edges later- ,ally or in a horizontal longitudinal direction. The separation of thefastening devices is, as will be readily understood, a progressive one beginning, at the 'bottom of the slit and releasingeach of the fastening devices in turn by a tilting action applied from below and directed forwardly and upwardly, this being the force naturally ex- ..erted in swinging the face plate as indicated. Then the face plate is returned to its normal position the stud 18 of each fastening device is readily snapped into engagement "with the spring 26, the beveled head serving to spread the spring as it enters.

Itwill be apparent to those skilled in the rable portions of each leg, said fastening means being separable onlyby force applied in a direction substantially lengthwise of the leg, substantially as described.

2. A car vestibule diaphragm, eachleg of which includes separableaportions, and fastening means for holding together the separable portions of each leg, said fastening means being separable only by force applied. in a direction upwardly and substantially lengthwise of the slit between the portions, substantially as described.

8. A car vestibule diaphragm, each leg of which includes separable portions, and fastening means for holding together the separable portions of each leg, said fastening upwardly and outwardly ina substantially vertical plane, substantially as described.

E rable portions of each leg, said fastening means being separable byforce applied in 'a'plane including the slit and not 1n a plane at right angles thereto, substantially as described.

5. A car vestibule diaphragm for a single ear, each leg of which includes portions separable upon a substantially vertical plane, and fastening means for holding together the separable portions ofeach leg, said fastening means adapted to be automatically. released only on tilting of that face plate to which the diaphragm is attached, substantially as described. 6. A car vestibule diaphragm of accordion form, andfastening means for hold- 'ing together the edges of the material, said fastening meansadapted to be automatically released only on tilting of the face plate to wh'ic'h the diaphragm is attached, substantially as described.

7 Acar vestibule diaphragm of accordion form having a plait in each leg provided with a slit therein, and cooperating fastening means on the edges of the fabric adjacent to said slit, said fastening means adapted to be automatically released on the applica- WILLIAM H. I FORSYTH.

Witnesses }R. S. REYNOLDS, 'L-T. GRnIs'T.

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