US605938A - turner - Google Patents

Description

2 Sheets-Sheet 2.

H. C'. TURNER.

STATIDN INDICATOR.

, Patented June 21,1898;

(No Model.)

UNITE STAT ES PAT'ENT OFFICE, e

HERBERT C. TURNER, OF SAN FRANOTS GO, CALIFORNIA, ASSIGNOR TO THE AMERICAN INDICATOR COMPANY, OF SAME PLACE. i

oN'a ub d r a 7 SPECIFICATION forming' part of Letters Patent No. 605,938, datedJ'uneQl, 1898.

Application filed January 2,'1394. RenewedNoveiher12,l897. SerialNo`.658,339. (No model.) i

To alliuhom it may con/ own.-

Be it known that I, HERBERT C. TURNER, a citizen of 'the United States, residing at San Francisco, in the county of San'Francisco and State of California, have invented certain new g and useful Improvements in Station-Indi cators; and I do hereby declare that the fol-` lowing isa full, clear, and exact description thereof.

This invention relates to the type of indicators actuated by the revolution of a caraxle, but differs from preceding indicators of this type in that it does not require all the' revolutions of' the car-axle made in traveling from one end of the route to the opposite end of route to revolve the' street-actuating device to the correct position for the return trip.

It is so geared that, provided the car-wheels do not lose revolutions, the indicator-controller will have made its`-full movement in one direction by the timethe car has traveled' the end of the route is reached.` On the start' ing of the car in the reverse direction the con troller also revolves in the reverse direction and works back till within one block of the first starting-point, where the same results occur as at the other terminus This result is obtained when the car-wheels make their full number of revolutions on the trip; but if the car-wheels lose motion from applied brakes, wet track, or other. cause there still remains one block of revolutions at each end of the route by which the controller is brought up to the correct position for' the return trip thus automatically correcting itself of any lost motion of the car-axle. It is also true that if there be gained motion, as in the case,

drawi-ngs, forning apart of this specification, inwhichsiinilar letters and numerals of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal vertical section of the -iriclosingbox or case with the indicatingbelt and rollers removed.` Fig. 2 is a detail view of a modified structure of the controllingdisk and connections shown in Fig. 1. Fig; 3 isa longitudinal horizontal section of the box', showing all the parts inclosed thereby in plan View. Fig. 4: is a broken transverse section through the upper part of the boX; Fig. 5 is a' detail view of the controlling-disk and its driving-gear.

' The letter A indicates a boX or casing of wood,or other suitable material,- placed within a car, in which are secured standards B, -Fig. 3, forming bearings for the shafts of the two rollers C, ,which carry the curtain D, mounted uponjrollers. p

The face of the curtain is marked with the names of the streets, Stations, or other places to be indicated, and the case A is provided with a sight opening y, Fig. 4, through which said names are exposed in succession as the curtain is Wound on or oil? either of the rollers.

For the purpose of producing the required motions of the curtain-rollers C each of the roller-shafts is provided with a loose cogwheel F, Fig. 3, and a sliding friction'-disk G, which is pressed against wheelF by the spring H, and is prevented from revolving on the roller-shaft by the pin I, which passes through the roller-shaft and 'engages with a slot J in the end of the hub of the friction-disk G. The loose cog-wheels F are prevented from moving p away from the friction-disks G by the fixed collar K.

'The' cog-wheels F gear with and receivemotion from the small loose pinions L L, which are loosely journaled on the shaft M, and Carry on their inside faces disks N, which are providedwith notches to engage With corresponding pawls O' 0 fulcrumed on a shifting pulley P. The pulley P. is loose' 'on the 'shaft M, so that it may be moved to and fro to allow of the engagement with the small pinions L of either of the pawls O' O", but is prevented from revolving on the shaft M IOO by a keyway on its innei' surface which engages with the kcy Q on the enlarged portion of the shaft M.

Fixed at the lett-hand end of the shaft M is a worn lt, which engages with the pivoted shifting lever S', which, through the connection of the arin T with the shifting lever 5 engaging with the slot U in the pulley P, shit'ts the pawls O' O into and out of connection with thenotches on the loose disks N as the ear reverses the motion of the actuating-rod a, Fig. 1, on leaving either end of the rente.

V is a pulley fixed on the actuating-rod (0,:-

which gives notion to the shaft M through the pnlley P and the cross-belt W.

On the left end of the front roller-shaft is Secured a cog-wheel X, which gears with the loose pinion Y, journaled on a stnd Y' of the supporting-frameB. Fastened to the outer end of the pinion Y is a disk hearing on its periphery a point Y which engages with the pivoted latch Z, which is provided with projeeting lips 1 and 2, against which the point Y bears alternately.

The latch Z is fulcruined at Z',and through the movement of the bell-crank lever m, to which it is connected, releases the pinion Y, which is then revolved one revolution by the action of one of the friction-disks Gr against its loose cog-wheel F. The point Y then comes u p against the under side of the latchlip l., Fig. 1 and further novenent of the roller is prevented till the bell-erank lever is again raised and depressed by the street-actuating disk.

The relation ol' the gears X and Y is as one to three, so that one revolution of the piniou Y allows the curtain-roller C to be revolved one-third of its cireunference, which is the necessary distance to bring into View the name of the next street on the curtain D.

\Vc will now take u p the description of the device that allows the street-indicating curtain to be aetuated at the proper time, so that the curtain may show the street-name at the proper places as the car runs over the route.

The actuating-rod (t receives rotary notion froni the car-axle through suitable nechanism driven by the aXIe under the car-body. A worni 'b on the rod engages with the gear c, which is loosely journaled on the stud e, projecting fron the back of the box, and is provided with a slot f, which engages withthe pin g, sccured to the loosc aog-wheel h and coninunicating motion to the latter when the said pin is moved by the rotation of the pinion c. A loose cog-wheel t', mounted upon a stud o, gears with wheel h and is pressed against a loose disk j by the spring 79. The disk is thus rotated until the obstruction Z on disk j bears against either face of the bellcrank m, at which tin'e the aog-wheel t' may continue its motion; but the disk j remains stationary in the correct position for the beginning of the return trip of the car. The dskj has arranged upon its periphery projections n, which engage with the bell-crank lever m and are spaced according to 'he distances between the streets. 'On the beginning of the return trip the gear c revolves in the reverse direction till the other end of the slot f engages with the pin g, when it revolves the disk j in the reverse direction to indicate the streets on the return trip of the car. The length of the slot f corresponds with the distance the car travels from the end of the route to the first street from the end, thus bringing the first street-indicating projeetion n to act on the lever m at the proper place on the return trip.

The latch Z has three lips, as shown in the drawing, Fig. l, and designated by the nn- Inerals 1, 2, and 3. hen the bell-erank lever m is in the position shown in Fi". l, the point Y is pressing on the lower side of the latch-lip 1. On the reversal'of the motion of the car the point Y can revolve far enough in the reverse direction to indicate the first street on the return trip without any movement of the latch Z or lever m, thus setting the street-curtain in the right position 'for the return trip.

The use of the lateh-lips 2 and 3 is shown fron the movement of the lever m, as it will be seen that as the lever rises on the projec tions n the latch-lip l is swun g fron over the point Y and said point presses up against the under side of lip 2, which then swings from over the point Y as the lever m goes ,down the other side of the projection n and allows the curtain to nove one street. Lip takes the place of lip 2 on the return trip of the car.

Fig. 2 is a modification of the street-actuatiug device shown in Fig. l and is the same in its action and general arrangenent, the only material difference being that the street- 'disk j is fastened to and noved by a ratchet r, both being looseon the stud o. The loose cog-wheel i is provided with an inverted-T lever s, fulcruned at t and provided with a spring u, which holds the lever upright. lelow this lever s is another lever U, fulcrumed at w and hearing on either end a pawl u', which engages with the ratcheto'. The loose aog-wheel t', being acted upon by the cogwheel JL, earries the lever s against the obstruction Z, fastened to the box A. The obstruction Zthen depresses s, and consequently o, and thus throws one pawl on e out of the ratchet and the other pawl into the ratchet 9' in the correct position to rotate the streetdisk in the reverse direction 011 the return trip of the car.

It will be seen that my device is especially built for cars that do not turn around at each end of the trip, but in which the notion of the axle is reversed. It can, however, be used on cars that do not reverse the axle motion, but turn round at each end of the trip, by various other means, such as a lever under the car and a tripping device on the roadway at either end of the road, which will reverse I ICO IIO

the motion of the actuating-rod a through suitable meohanism under the car-body.

I do not limit myself to the exact Construction or kind of mechanisms herein described, as it is evident that they can be considerably modified by those skilled in the art without departing from the spirit of my invention as expressed by the claims which I have made.

Having described my invention, I claim-- 1. Station indicating mechanism driven from a car-aXle so arranged as to be operated periodically during the trip of a conveyance, and provided with automatic means for positively stopping it at or within a limited distance from the end of the route Without affecting the movement of the means for driving it, substantially. as set forth.

2. Station-indioating mechanism arranged so as to indicate a prescribed number of streets or stations upon a route with approximate accuracy to a point near the terminus, and having a positive stop automatically operated for holding it stationary at the said point, whereby it is placed in correct-position for commencing the indication upon the return trip, substantially as set forth.

3. In a street or station indicator the combination with a shaft geared to the aXle of a car of a rotary controlling-disk driven from said shaft by frictional gearing, a travel-ing indicator-belt deriving its motion from said shaft, a latch 'for holding the belt stationary, and a connection from the controller to said latch for releasing the belt and permitting it to derive motion at intervals from the main shaft, substantially as set forth.

4:. In a street or station indicator a controller geared frictionally to a continuously-moving shaft, an indicator-belt geared frictionally to said shaft, a latch for holding the indicatorbelt stationary, a connection from the latch to the controller for periodically releasing the belt and permitting it to move, and a stop for limiting the movement of the controller and belt without afiecting the rotation of the shaft, substantially as set forth.

5. In a street or station indicator a movable indicating-belt geared to a driving-shaft, a controlling-disk having its periphery provided with devices spaced according to the points in a route to be indicated, and frictionally geared to said driving-shaft, a latch for alternately holding and releasing the belt and operated by the controller, and a stop whereby the controller and belt are stopped at or near the end of a route without affecting the rotation of the driving-shaft substantially as set forth.

6. The combination with the rollers carrying the indicating-belt of a driving-shaft a, a shaft M, a shaft for each roller gearedfrictionally to said shaft M, and a slidin-g clutch upon the shaft M connected to the drivingshaft and communicating motion to either roller according to the direction of rotation of the driving-shaft a, substantially as set forth.

7. Iu combination with the reversibly-movable driving-shaft and the rollers carrying an indicating-belt, the shaft M, having gearing for driving the rollers independently, a sliding clutch upon the shaft M, connected to the driving-shaft, a worm upon the shaft M and connected levers S' S engaging respectively with said worm and said clutch, substantially as and for thepurposes set forth.

8. A street or station indicator comprising a reversibly-rotatable driving-shaft geared to a car-axle; reversibly-movable rollers carrying an indicating-belt and driven by gearing from the driving-shaft which includes a frictional connection; amovable latch for temporarily stopping the rollers, a reversiblymovable toothed controlling-disk driven by gearing, part of which is frictional, from the driving-shaft, and a lever operated by the oontrolling-disk and connected to said latch, substantially as set forth.

9. In a street and station indicator the combination with driven rollers carrying an indicating-belt of a latch for periodically stopping said rollers, a driving-shaft, a train of gearing driven by said shaft, a loose controlling-disk in frictional contact with one member of said train, a spring for increasing the frictional contact and a lever connected to saidlatoh and operated by said disk, substantially as set forth.

10. In a street or station indicator rollers carrying a belt and geared 'partly by frictiongearing to driving-shaft, a latch for alternately holding and releasing the rollers, and a controller operated independently of the rollers bythe common driving-shaft and having means for periodically moving said latch to release said rollers, substantially as set forth.

11. In a street or station indicator of the -continuous type and in combination with a box or case adapted to be mounted within a car and with an actuating rod or shaft geared IOO IIO

to an aXle of the car, an indicating-belt carried by rollers and driven by said actuatingrod, a latch for alternately holding and releasing said rollers, and a controller connected to said latch, all contained within said case'

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