US650951A

US650951A - Station-indicator.

Info

Publication number: US650951A
Application number: US72668999A
Authority: US
Inventors: Fred Holmes Rees
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-08-09
Filing date: 1899-08-09
Publication date: 1900-06-05
Anticipated expiration: 1917-06-05

Description

N0. 650,95l. Patented June 5, I900. F. H'. REES.

STATION INDICATOR.

(Application filed Aug. 9, 1899.)

2 Sheets-Sheet L (No Model.)

J" Illl llll No. 650,951. Patehted June 5, 1900. F. H. REES:

STATION INDICATOR.

(A lication fil Au 9 1899 (No Model.) 2 Sheets-sheaf 2.

. I 725' "\Ii ip \\l I I I- j IIIIIIIIIIIIIIIIIIIIIIIIIIIIII1 Y IIII I- f" 3? I IIIWIIIIIIIIIII ""l 41 WW v UNITED STATES I PATENT OFFICE.

FRED HOLMES REES, OF ELMIRA, NEW' YORK.

STATION-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 650,951, dated June 5, 1900. Application filed August 9. 1899.1 M1 No. 726,689. (No model.)

To whom, it may concern:

Be it known that I, FRED HOLMES REES, a resident of Elmira, inthe county of Ohemung and State of New York, have invented certain new and useful Improvements in Station.- Indicators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to station=indicators and like devices; and its object is to increase the efficiency and certainty of their action and to simplify the construction.

The invention consists in the construction hereinafter described'and pointed out.

Figure 1 is a broken perspective of a station-indicator. mechanism. Fig. 3 is an elevation of rollerdrivingdevices. Figs. 4 and 5 are opposite end elevations of the same. Fig; 6 is a section of a gear, spring, and inclosing cap; and Fig. 7 is a broken elevation of a modification.

Numeral 1 denotes a case of any usual or desired form, "and 2 .is a window, which may be glazed or not. In practice when used as a station-indicator I prefer to place the words Next station above the opening which discloses said stations, as shown in the drawings.

3 and 4 are rollers, and 5 is a band marked to indicate stations or other matters. The rollers are provided with

gears

6 and 7 on their respective shafts and adapted to cooperate by means of a pinion 8.

bearings.

To the shaft of roller 4 are fixed two ratchetwheels 10 and 11, with their teeth facing op positely, as shown, whereby the wheels are adapted to be oppositelydriven.

12 denotes a bar pivotally supported at 13 by an arm 14, loose on the shaft of roller 4 and held in place lengthwise the shaft by a. washer and spring-pin.

15 and 16 denote pawls carried by the bar and situated in the planes of the respective ratchet-wheels. As shown, pawls 15 can be made to engage the teeth 15 of wheel 10 and the pawl 16 the teeth .16 of wheel 11. It is not, however, essential that these wheels be Fig. 2 is an elevation of the separate, nor that the teeth be arranged in separate planes. The construction indicated in the drawings, comprising two toothed disks which are identical in form,though oppositely situated as respects their teeth, is a convenient and economical construction and is preferred. t

The bar 12 and the arm 14 constitute a lever which rocks on the shaft whenever either chain 17 is suitably manipulated to drive a ratchet-wheel by means of a pawl.

18. denotes a pawl-returning spring having one end fixed to the arm 14 and the other fixed to the plate 9 or other suitable support.

By this construction the indicator-band can be wound in either direction indefinitely and its direction reversed at any desired point. Both pawls are normally held out of the path of the ratchet-teeth, but in readiness to.operate immediately whichever chain is manipulated.

The shaft of roller 4 has an angular part 4, upon which bears a spring 19, which arrests the rollers as soon as the chain which drives them by means of the pawl and ratchet is released. The faces of said part 4 of the shaft may be of any desired number and are properly proportioned to cooperate with the spring to arrest the rollers when the ratchetteeth are in suitable situation to be immediately engaged by a forwardly-moving pawl.

To take up the slack of the band and also provide for tension at other times, the gear3 is provided with a recess or chamber 3, and 9 indicates a supporting-plate or post fixed. in the case and in which the roller-shafts have i in said chamber is placed a tension-spring 20,

tween said wheel and its shaft, one end of the spring being secured to the shaft and the other t6 the wheel.

21 denotes a cap to cover the spring-charm ber, provided with a tubular'boss 22, cooperating with a similar boss 23 on the opposite side of the wheel to give a wide bearing between the wheel and shaft.

24 denotes screws for fastening the cap to the wheel. The spring is accessible for varying its tension or for renewal.

The preferred form of spring holding chamber is shown in Fig. 6, in which the spring is inclosed between a face of the gear and a cap 25, having a shoulder 3".

constituting the operative connection be- Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with rollers for indicators or the like, gears operatively connecting the rollers, a reversely-acting wheel-ratchet fixed to a roller-shaft, an oscillating pawl-lever carrying a driving-pawl for each of two ratchets, and a spring normally holding both pawls out of the path of the ratchet-teeth, said spring being secured to the lever and to a fixed point.

In combination with rollers for indicators or the like, gears operatively connecting the rollers, one of said gears havinga spring connection with one of the rollers, a reverselyacting wheel-ratchet fixed to a roller-shaft, an oscillating pawl-lever carrying a drivingpawl for each of two ratchets, and a spring normally holding both pawls out of the path of the ratchet-teeth, said spring being secured to the lever and to a fixed point.

3. A compound ratchet-wheel comprising two disks fixed to each other and having op positely-arranged teeth and a lever operatively carrying pawls to engage the oppositelysituated teeth of the disks, said pawls being pivotally secured to the lever and lying nor'- mally out of engagement with the teeth of the disks.

4. In combination with rollers for indicators or the like, gears operatively connecting the rollers, one of said gears being recessed and having a spring secured in said recess forming a connection between the gear and one of the rollers, a reversely-acting wheelratchet fixed to a roller-shaft, an oscillating pawl-lever carrying a driving-pawl for each of two ratchets, and a spring normally holding both pawls out of the path of the ratchetteeth, said spring being secured to the lever and to a fixed point.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

FRED HOLMES REES.

\Vitnesses:

BOYD MCDOWELL, 1-3 ERTIIA BERNSTEIN.