US1195779A

US1195779A - chaffee

Info

Publication number: US1195779A
Authority: US
Publication date: 1916-08-22
Anticipated expiration: 1933-08-22

Description

E.F.CHAFFEE TRAP DOOR FOR RAILWAY CAR PLATFORMS. APPLICATION F |LED B502]. 1914.

1,195,779. Patent-edAug. 22,1916.

3 SHEETS-SHEET I INVENTOR ATTORNEYS ms NDRms Pzrsns 00.. imam-1.1mm wuumo mu, 0. c.

E. F. CHAFFEE.

TRAP DOOR FOR RAILWAY CAR PLATFORMS. APPLlCATlON FILED DEC-21.1914.

1 1 95,779. Patented Aug. 22, 1916.

3 SHEETS-SHEET 2- ATTORNEYS mu NURRVS r-zrsres cuJwom-umu, Mmum'mu, n c.

E. F. CHAFFEE.

TRAP DOOR FOR RAILWAY ,CAR PLATFORMS.

APPLICATION FILED DEC. 21. 1914.

PaxentedAun; 22,1916.

3 SHEETSSHEET 3.

WITNESSES:

INVENTOR ATTORNEYS m: NoRnls PEYERS c0. nnmwnnxa. WASHINGTON. o. c.

. an srarns ra rnnr orrren.

EDWARD F. CHAFFEE, or sYRAousn ivEw YORK, AssIeivoRro THE 0. M. EDWARDS COMPANY, me, or sYRAcusE, 'NEW YORK, A CORPORATION on NEW YORK.

TRAP-DOOR FOR RAILWAY-CAR PLATFORMS.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed December 21, 1914;. Serial 110,878,462.

a citizen of the United States, and a resi dent of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Trap-Door for Railway-Car Platforms, of which the following is a specification.

This invention relates to trap doors for railway car platforms, particularly car platforms which are capable of being projected laterally beyond the sides of the cars to bridge the space between the cars and station platforms elevated into a position substantially flush with the car platforms, and it has for its object means movable with the platform to bridge the space between the inner edge of the door and the platform floor when the door is projected outwardly; and the invention consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings, in which like characters designate corresponding parts in all the views. a

Figure 1 is a fragmentary view illustrating in plan a portion of the platform, and trap door provided with my invention. Fig. 2 is a section n the plane of line 2-2, Fig. 1, the door being shown as swung into open position on itshinge. Fig. 3 is a fragmentary sectional view taken on the plane of line 22, Fig. 1, the door being shown as slid outwardly to its open position, parts of the sliding mechanism for the door being omitted. Fig. 4 is a transverse sectional view through the'door on line A-A, Fig. 1. Fig. 5 is a sectional view on line 13-13, Fig. 1.

This invention comprises means movable laterally beyond the side of the car and having a portion telescoping withthe plat form floor of the car. Said means is here shown as a trap door and the telescoping portion thereof is a slide coupled tothe trap door at the inner edge thereof.

1 designates-the car; platform.

2 designates the trap door which is hinged at one side of the door openingand which is movable axially of its-hinge to project its outer portion 3 beyond the side face 4 of the car. V

The door is hinged to the platform in any well known manner, it being here shown as provided with parallel levers 5 which support the floor of the trap door and which .are pivoted at 6 at their inner ends to bearings 7 fixed upon a spring barrel 8 journaled in bearings 9, 10, carried by the platform. The parallel levers 5 are connected at their outer ends to the under side of the flooring of the door by pins 11. extending through slots in the levers. During axial shifting of, thedoor the levers 5'move in parallelism on their pivots 6 and guide the door in its sliding movement. A suitable torque spring 13 1s fixed at one end to one bearing and at its other end suitably connected to the spring barrel to rotate-the barrel to open the door on its hinge. The sup- .port for the door forms no part of this invention. The door is slidable axially when in its closed postion by any suitable means here shown as a vertical rock shaft 14 supported by the platform and having a rock arm 15 thereon which is connected by a link 16 to the trap door flooring. The rock shaft is provided with a suitable folding handle 17 by means of which it is operated.

The means for bridging the space between the inner edge of the trap door 2 and the floor of the platform at the top of the trap door opening, as here shown consists of a slide 18 which telescopes with the platform. Said slide is preferably connected to the door 2 by a coupling which disconnects the door from the slide 18 during the opening movement of the door and which connects the door to the slide as the door approaches its closed position. As here shown, the slide 18 is. movable into and out of a horizontal cavity 19 beneath the tread of the platform 1 at the top of the step opening, the cavity being provided with suitable braces 20 therein for supporting the tread of the platform 1, these braces being usually of angle iron. The slide 18 is formed with slots 21, complemental to the braces 20. Supports 22 for the slide are also provided on the bottom of the cavity 19 and on whichthe slide 18 rests while in the cavity and during its sliding movement.

When the slide 18 is moved out of the cavity, as when the door 2 is moved axially,

that is,'longitudinally of its axis, the opposite edges of the slide rest on

ledges

23, 24,

Figs. 1 and 1, provided on the platform and on the-hinge barrel 6. The free edge of the door normally rests on a ledge 25 in the ordinary manner, and the ledge 23 is an extension of the ledge 25 at the inner end thereof, and its surface is depressed below the surface of the ledge 25, as the slide 18 has a portion extending under the tread of the door '2. The door is coupled to the slide by interlocking means which move out of and into interlocking engagement during the opening and closing of the door on its hinge. VAs here shown, said means comprises eyes or openings 26 provided in one of the parts coupled together, as the slide and lugs 27 provided on the other of said parts as the door, the lugs 27 being carried by brackets 28 projecting beyond the inner edge of the door. The eyes 26 are alined with cutouts 29 in the platform 1, which cutouts receive the lugs 27' so that-the upper faces of the lugs 28 are flush withthe upand as here shown, said means consists of a spring pressed bolt 30 supported by the platform and arranged to enter one of the eyes26 as the lug 27 moves out of said eye and to be depressed out of the eye 26 by said lug27 as the door approaches its closed position. p

In operation, when a train stops at a station having the platform near the level of the tracks, the trap door is opened in the usual manner permitting the passengers to alight and board by means of the steps, and

7 during the opening of the trap door, the

'mal position.

lugs 27 move out of the openings 26 ofthe slide" and the bolt 30 moves into one of the openings 26 holding the slide 18 in its nor- During the closing of the door 2 on its hinge, the lugs 27 come into 7 interlocking engagement with the eyes 26 and again couple the door 2'and the slide 18. When thetrain stops at stations having elevated platforms near the level of the car platform, the rock shaft 1 1 is operated to shift the door 2 outwardly and axially so that its outer portion 3 projects beyond the sideof the car, and as the door 2 moves, the slide 18 moves out of its cavity 19, and bridges the space between the inner edge of the trap door 2 and the platform 1.

7 When the train departs, the rock shaft'lO is-again operated moving the door 2 axially and again moving the slide 18 into thecavity 19.; 1 During the sliding movement of the slide 18, it moves on the ledges 23 and 24:.

form atone side of the door opening, and

slidable longitudinally of the axis of its.

hinge, and a slide located at the inner edge of the door to bridge the space between the a set forth.

platform and the door when the door is moved axiallyoutwardly from its normal position, the door being separated from the the platform at one side of the dooropening and shiftable longitudinally ofthe axis of its hinge, the door having meanszassoci ated therewith and movable'into and: out

of the .cavityfduring the axial movement of the door, the door belng separated from said means durmg the movement of theidoor on its hinge, substantially as'and for the purpose specified.

3. The combination with a railway flcar platform, of a trap door hinged to the platform at one side of the 'dooriopening and hinge and means at the inner edge of: the

door telescoping with theplatform at" the: top of the steps of the'platform, the door slidable. longitudinallyof theaxis of its being separated from said means during the opening movementof the door on its hinge, substantially as "and for the, purpose 4. The combination with a, railway car platform, of a trap door hingedto the platform at one side of the door opening and slidable longitudinally of the axis of its hinge, a slide located at the inner edge of the door to bridge the space betweenthe platform and the door when the door is moved outwardly axially, and means cou-V pling the door and the slide and acting to disconnect the door from theislide during the opening of the .door on itshinge an'd to' connect thedoor and the slideas the door approaches its closed position, substantially as and for the purpose described."

5. The combination'with a railway car platform, of a trap door hingedto the platform at one side of the door opening, and a slide located at the inner edge of the door and telescoping with the platform at the inner side of the. door'opening, the door and the slide having means moving'lnto and out of lnterlocklng engagement durmg the opening and closing of the 'door, substantially as V and for the purpose specified. s

6. The combination With a railway car platform, of'a trapdoor hinged to the plat. form at one side of thedoor opening,and a slide located at the inner edge of the door} and telescoping with the platform at the.

top of the steps, thedoo'r' and the slide having means mov nginto and out ofinterlock "ing engagement during the opening and closing of the door, said means consisting of an opening provided on one of'said parts "connected together, and alugprovidedon the'other of'said parts, the lug and opening 30 being arranged at an angle to the sliding movement of the door and being arranged to come into engagement as the door approaches its closed position, substantially as and for the purpose set forth.

7. The combination with a railway car platform, of a trap door hinged to the platform at one side of the door opening, a slide located at the inner edge of the door and telescoping with the platform at the top of the steps, the door and the slide having means moving out of and into interlocking engagement during the opening and closing of the door, and means for holding the slide from movement when the door is swung open on its hinge, substantially as and for the purpose described.

8. The combination with a railway car platform, of a trap door hinged to the platform at one side of the door opening, a slide located at the inner edge of the door and telescoping with the platform at the top of the steps, the door and the slide having means moving out of and into interlocking engagement during the opening and closing of the door, and means for holding the slide from movement when the door is swung open on its hinge, said means being movable out of interlocking engagement with the slide by the door as the door approaches its 'closedposition, substantially as and for the purpose specified.

9. The combination with a railway car platform, of a trap door hinged to the platform at one side of the opening and being slidable longitudinally of the axis of its hinge, a slide located at the inner edge of the door and telescoping with the platform at the inner end of the door opening, the slide being provided with an eye opening, and the door being provided with a lug, the opening and the lug being arranged at an angle to the sliding movement of the door, and ar ranged to come into interlocking engagement as the door approaches its closed position, and a lock associated with the platform and arranged to enter the opening as the lug moves out of the opening to hold the slide from movement when the door is opened and to move out of the opening as the door approaches its closed position, substantially as and for the purpose set forth.

10. The combination of a railway car platform having a cavity at the inner end of the door opening, a brace interposed between the floor of the platform and the bottom of the cavity, a trap door hinged to the platform at one side ofthe door opening and slidable lengthwise of the axis of its hinge, and a slide located at the inner edge of the door and movable into and out of the cavity and having a slot into which the brace eX- tends, substantially as and for the purpose described.

11. The combination with a railway car platform, of a trap door hinged at one side of the door opening and including a spring barrel on the underside thereof, the door be ing also movable lengthwise of the axis of the barrel, a slide telescoping with the platform at the inner side of the door opening, means coupling the slide and the door together whereby the slide is movable axially with the door, and means carried by the hinge barrel for supporting the slide during the sliding movement of the door and the slide, substantially as and for the purpose specified.

12. The combination with a railway car platform, formed with a cavity at the top of the steps of the platform, of means movable laterally beyond the side of the car and having a portion movable into and out of said cavity, substantially as and for the purpose set forth.

In testimony whereof, I have hereunto signed by name,'in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga and State of New York, this 10th day of November, 1914.

EDWARD F. CHAFFE'E.

Witnesses:

S. DAVIS, J. GLAZIER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.