US719764A

US719764A - Hand-rail for moving stair-lifts.

Info

Publication number: US719764A
Application number: US12877702A
Authority: US
Inventors: James M Dodge
Original assignee: STAIR LIFT Co
Current assignee: STAIR LIFT Co
Priority date: 1902-10-25
Filing date: 1902-10-25
Publication date: 1903-02-03
Anticipated expiration: 1920-02-03

Description

I PATENTED THE. 8, 1903.

J. M. DODGE; HAND RAIL FOR MOVING STAIR LIFTS.

APPLICATION FILED OCT. 25, 1902.

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No. 719,764. vPA'HJTTBD FEB. 8, 1903.

J. M. DODGE. HAND RAIL FOR MOVING STAIR LIFTS.

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JAMES M. DODGE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE STAIR LIFT COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HAND-RAIL FOR MOVING STAlR-LIFTS.

SPECIFICATION forming part of Letters Patent N 0. 719,764, dated February 3, 1903.

Application filed October 25, 1902. Serial No. 128,777. (No model.)

To all whom it may on e n: shaft B is at the intersection of the outer Be it known that I, JAMES M. DODGE, a citiedge of the tread and theriser below it, while zen of the United States, residing in Phila' the shaft D is at the intersection of the inner delphia, Pennsylvania, haveinvented certain edge of the tread and the riser above it.

5 Improvements in Hand-Rails for Moving Fis the lower platform of thestairway, and

Stair-Lifts, of which the followingisaspecifi: F is the upper platform of the"stairway. cation. These platforms are so arranged that a per- My invention relates to certain improveson can step onto the stairway from the lower ments in moving stairways orinclined planes platform and readily step off at the upper [O in which there is a moving hand-rail or supplatform.

port within reach of the person being carried It will be noticed that while the treads and by the moving portion of the stair-lift. risers are formed on the elevating run of the The object of my invention is to move the conveyor the band on the return run is a simhand-rail at the same speed as the moving ple straight band in the present instance.

[5 portion of the stair-lift; and this object I at- The endless band A passes around suitable tain by connecting the hand-rail or support guideways on each end of the apparatus and directly to the moving portion of the stairis driven in the present instance by means lift, as illustrated in the accompanying drawof drive-chains H at each side of the stairway. ings, in which- These chains travel on guides carried by the 20 Figure 1 is a diagrammatic side View illusbrackets E and pass around suitable driving trating my invention. Fig. 2 is an enlarged and guide rollers. (Shown by dotted lines in sectional View of the base portion of the stair- Fig. 1.) The chains are coupled at intervals lift; and Fig. 3 is atransverse sectional View to the ends of the shafts B,asillustrated inFig.

on the line 3 3, Fig. 2. 3. This construction is shown and claimed 25 In the present instance I have shown my in an application for patent filed December invention applied to a moving stair-lift in 27, 1902, Serial No. 136,815.

which an endless band is formed into treads G is an endless band forming a hand-rail. and risers, as fully illustrated in the patent This band is driven at the same speed as the granted to me on the 12th day of December, moving band A and is connected to it at in- 30 1899, No. 639,154; but it will be understood tervals, as shown in the drawings. Flexible at the outset that my invention can be ap ropes or cords I are coupled to the hand-rail 8o plied to other types of moving stairways or band G at g and coupled to an arm b on the can be applied to moving inclined planes shaft 13. without departing from my invention. I preferably attach a rope or cord I to the 35 A is an endless flexible band forming the band A-at each shaftB and connect it to the treads and risers and alluded to hereinafter. hand-rail band G. In the type shown only The endless band is supported at intervals one or two of the ropes or cords I are taut by cross-shafts B and D, which carry rollers during the travel of the band. First one rope I) and cl, respectively. The shafts D in this and then another takes the strain, so that the 40 instance do not support the band on the elehand-rail band is driven from the stairway vating run, but simply travel in ways E, through the ropes I. These ropes are taut formed in the presentinstance byachannelnear the lower end of the stairway in the bar, as shown clearly in Fig. 3, while the present instance, as shown at 00, Fig. 1, as it rollers I) travel on the rail 6, supported by the has been found that this connection is sufli- 45 channel-bar. The channel-barEissupported cient to drive the hand-rail or support at the in turn byabracket E,attached to the I-beam same speed as the stair-lift. As soon as the 5 g C, forming the main support for the stairhand-rail band passes the point at the ropes way. This construction may be modified slacken, and they are slack until they again Without departing from my invention. The reach this point on the return run. The slack rope is taken care of in any suitable manner, l and the band is guided on the return run by a rail J, and a guide K forms a support for the hand-rail band as it travels with the carrying portion of the stairway. This support K is connected by a plate K to the I-beam C in the present instance; but it may be otherwise supported without departing from my invention.

I preferably make the grip portion of the band G U shape, as shown in Fig. 3, and provide a series of friction-rollers g, which travel on the rail 70 on the guide K.

In order to protect the person carried by the moving stair-lift, I provide a shield L, which is suitably supported in front of the ropes or cords, and on the stair-lift are plates a. which extend upward between two flanges Z Z of the shield L, so as to make the joint complete.

In some instances my invention may be applied to a moving sidewalk or a horizontal conveyer without departing from the invention; but it is especially applicable for use in connection with moving stairways having steps and risers or moving inclined planes.

1 claim as my invention- 1. The combination in a moving stairway or plane, of the endless carrying-section, with an endless hand-rail or support connected directly to the moving carrying-section, substantially as described.

2. The combination in a moving stairway or plane,ofan endless carrying-section,means for driving said section, and an endless handrailor support, with connections coupling the hand-rail at intervals to the movable carrying-section, substantially as described.

3. The combination in a moving stairway or plane, of the carrying-section, means for driving the carrying-section, an endless band forming a hand-rail or support, ropes connecting the hand-rail to the carrying-section, said ropes being so arranged that the major portion of the cords during the travel of the hand-rail will be slack, substantially as described.

4. The combination in a moving stairway, of an endless band,means for flexing the band on the elevating run to form treads and risers, shafts for supporting the band at the nosing of the treads, an endless hand-rail or support,

ways for the said hand-rail, and connections extending from the shafts at the nosings of the stairway to the hand-rail, substantially as described.

5. The combination in a moving stairway, of an endless carrying-band, means for flexing the band on the carrying run to form steps and risers, an endless hand-rail or support connected directly to the moving portion of the stairway, a support for the hand-rail, and a shield inclosing the connecting mechanism between the hand-rail and the carryingsection, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of twosubscribing witnesses.

- JAMES M. ,DODGE.

Witnesses:

WILL. A. BARR, J 0s. H. KLEIN.