US1016800A - Extensible car-step. - Google Patents

Description

E. G. UHL. EXTENSIBLE GAR STEP.

APPLICATION IILED 0GT.31,1911.

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EKTENSIBLE CAPWSTEP.

Specification of Letters Llatent.

Patented lfiebo b, 391%,

Application filed Gctober 31, 1am. Serial No. ?,726.

o UlGWll l, EDGAR G. UHL, a citiof the United States, residing at Encimall, in the county of Lasalle and State of Texas, have invented certain new and useful lmprovements in Extensible Gar-Steps, of which the following is a specification.

, This pertains especially to means for a supplemental car step.

The object of the invention is to provide novel and peculiar mechanism of simple and inexpensive construction applicable to car platforms, and operated from the latter for operating an extensiblestep.

A further object of the invention is to provide an extensible car step capable of attachment or connection with the usual or ordinary car steps, and to furnish novel and peculiar rack and pinion mechanism for sliding the step on the same angle or pitch as the ordinary steps so as to vary the po sition of the supplemental step relative to said steps.

ll. still further object of the invention. is to provide a rack bar of novel and 1'3eculiar citinstruction adapted to be operated from the car platform for operating a supplemental car step, and to furnish novel and peculiar means for mounting the step, and for connecting it with the said rack bar.

Various other objects, advantages and improved re ts are attainable inthe practical applicat L and working of the invention.

In the accompanying drawings forming a part of this applicationliigure l is an end iew of part of. a car platform showing the application of the invention. Fig. 2 is a se' ional view on the line X-X Fig. 1. .r l a detail perspective view of the double raclt bar. Fig. 4 is a perspective of! 1 view of one 01. the step bracKets. 1 1g. 0 1s a perspective view of do'oble rack bar. Fig. 6 is a detail elcvation oi the hand vheel gear.

The same-Q1 -rence numerals denote the same parts throughout the-several views of the drawings.

carrying out my invention, and for the purpose of illustrating the same it is shown applied. to the usual car steps '1, of an ordicar platform :3, having a railing 3.

in order to operate the supplemental step from the plat "111 of a car, ll provide a, vertlcal shaft l, having a beveled 5, se

invention relates to car steps and operating the keeper for the' ects, below the 1 1 thereto.

l l I cared to the upperend of the shaft, and a hand wheel 6, having a beveled gear 7 meshing with the by means of a hanger 8. The shaft platform 2, and is provided with a pinion 9. The sides of the ordinary steps 1 are pro-- vided with keepers 10, in which are operated sliding bars 1.1, having teeth at the upper end thereof, anda head 12 to limit the downward movement of the said bars. The lower end of the said bars carries the supplemental step 13, which is connected therewith by a pair of brackets 14, having an opening 1.5 for the ends of the etc 13, and said brackets are each provided with a plate 16 central thereof, such plates extend over the step opening and preventlateral movementof the step, and a portion of the plates extends above the brackets so as to afford means for holding the sliding rack bars The rear edge of the ordina-r step frame or sides has a shaft 17 revolubly mounted thereon, and said shaft is provided with a pinion 18 at each end thereof, and such pinions mesh with the teeth of the sliding bars 11. The means for imparting motion to the shaft 17 from the shaft 4 comprises a double rack bar .19, having teeth 20 meshing with the pinion 9, and teeth 21, on the opposite end of the bar, at right angles to the teeth 20, 22 mounted on the shaft 17. The rack bar 18 is provided with beads 28, to limit the movement of said bar, and a keeper 24 is mounted on the hub of the gears 9 and 22 to prevent displacement of the bar 19. The

4 proend of the shaft rack bar 19 is slidable at right angles to the shafts 1 and 17, and the rack bars 11 are slidable at an angle to the bars 41 and 11.-

It is obvious that the step 13 may be pro jected and retracted with respect to the steps 1, as desired by simply operating-the hand wheel 6; and that by reason of the bars 11 being slidable on an angle to the pitch or rise of the steps 1, the step 18 has the same relative pitch and may be given the same rise as the steps 1, or.the rise of the step 13, may be varied with respect to the steps 1, as desired or as occasion may demand.

Having thus described my invention what I claim as new and desire to secure by Letters Fatent is 1. The combination, with passenger car gear 5, and held to the shaft 4e the lower steps, an extensible step, and a pair of rack ,means for operating the vertical shaft.

'2. The combination, with a passenger car step, a supplemental slidable step, and a pair of rack-bars slidable on the sides of the said steps, of open brackets in which the ends of said step are carried, a plate on the brackets and forming an abutment for the step and having the said rack-bars secured thereto, and mechanism for sliding the rackbars.

3. The combination, with passenger car steps, a supplemental step, a hand Wheel,

a gear secured to the hand wheel, a vertical shaft having a gear meshing with the hand wheel gear, a pinion on the vertical shaft, a horizontal shaft journaled on the steps, and a plurality of gears on this shaft, of a rack-bar having one set of teeth meshing with the said vertical shaft pinion, and another set of teeth meshing with one of said horizontal shaft gears, a pair of rack-bars slidably attached to the sldes of the steps and meshing with the other of said gears of the horizontal shaft, and brackets for holding and connectin the supplemental step with the said pair of rack-bars.

In witness whereof I hereunto set my hand in the presence of two witnesses.

EDGAR G. UHL.

Witnesses:

JOHN MGMULLIN, JAMES CARR.

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