US868849A - Fare-indicator. - Google Patents

Description

PATENTED OCT. 22. 1907.

\ H. DNHLTER.

FARE INDICATOR.

APPLIOATIOI FILE!) APB. 26, 1907.

4 BEEETS-SHEET 1.

izze ae&

PATENTBD 00122. 1907. H. DUNHLTER.

PARE I'NDICATOR.

APPLIOATIOI PILED APB. 26, 1907.

4 SEEETS-SEEET .2

PATENTBD OCT. 22. 1907 H.. DNHLTER. FARE INDCATOR.

urmouon rILm ATB. 26, 1907.

4 SEBETS-SEEET 3 No' 868,&49. PATENTED 001 22. 1907.' H. DNHLTER. FARE INDIGATOR.

APPLIOATION I'ILEDAPB. 28, 1907.

4 BHEETS-SHEET 4.

4 I %MZ %6747/2654 UNITED' STATES PAWTENT OFFICE.

HEINRICH DUNHLTER, OF BERLIN, GERMANY.

FARE-INDICATOR.

Specification of Letters Patent.

lfatented Oct. 22, 1907.

(Application filed April 26, 1907. Serial No. 370393.

`l `are lndicators, of which the following is an exact specification.

This invention relates to a -iare-indicator for cabs and the like and has for its object a detent-device for a signal, for instance in the form of a flag or the like convenient indicating means, from which it can be seen whether the cab is in use or is free. For the convenience of reference this signal will be hereinafter called indicating-fiag or flag, and as it isknown the position of this indicating flag is usually thus selected that by having an upright and downward position the flag indicates the cab in use and free respectively.

It is well known that when the flag and the fare indicator mechanisin are thus in engagement with each other that the flag cannot be put down prior to the throwing of the indicator into actin 'and no lifting of the flag into the upright position can take place without having the indicator nechanism released, that is to say put out of action.

The indicating flag normally is mountcd in the casing of the indicator and the indicating mechanism is thrown into or out of action either by neans of a loose key or a handle fixedly connected with the mechanisn. In known constructions the shaft to be operated by the key is arranged apart from that shat carrying the flag and special means as for instance suitably shaped disks, toothed wheels and detent pawls are provided for connccting both the aformentioned shats and for rendering thereby the motion of the one shaft in a certain manner dependent on the other shaft. These known constructions are rather cumbersome and the two openings for the shats in the casing are very objeetionablo because rain or dirt can enter the interior of the casing therehy rendering the mecham'sm liable to injury. Furthermore the two shafts for the indicating flag and the kcy or handle respectively require much space whereby the casing becomes large 'and heavy.

The present invention avoids the aforementioned drawbacks and has for its object a consider-able simplification .of the fare-indicator. This purpose is attained by providing two telescoped shafts, which carry the indicating flag and the key or handle respectively.

Besides simplifying the Construction much space is saved thereby, so that the casing of the indicator becomes smaller and'iuthermore one single hole is required for the passage of the two shafts through the* casing.

In order to make my invention more clear', reference is made to the accompanying drawings, in which:

Figur-e 1 is a fagmentary side elevation of the indicator, showing the improvement according to the present invention, Fig. l it a fragmentary seetional front elevation of ,the indicato', Fig. l is a iragmentary sectional plan elevation, FigJZ is a iragnentary vertical section on line A-B of the Fig. lFig. 3 is a ragmentary vertical section on line C -D of the Fig. 1,

Figs. 4 to 9 are details of the detent device for the indicating flag. Fig. 10 shows the detent device in the position permitting oi the indicating flag to be laid down, Fig 11 illustrates the indicating flag laid down and the fare-indicator mechanism put into action. Fig. 12 llustrates the iare-indicator and the detent device respectively in the position permitting of the indicating flag to be lifted up in its vertical position.

elating to the Figs. l to 9 a is the casing of the fare indicator.

b is a hollow shait or sleeve into which is telescoped the shaft a. The sleeve b and'the shalt c pass through an opening in the casing a 4 c represents the indicating flag fixedly mounted on the sleeve I which is allowed to turnlfreely on the shaft e.

f is the handle fixedly connected with the shaft c and serving for throwing the indicating mechanism into and out of action.

d is a ratchet wheel fixedly mounted on the sleeve b and q is a cam-disk or plate fixedly mounted on'the shaft e and kept up against the wheel d.

f is a helical spring ior insuring the parts g and d in their position and f 2 is a disk or Washer serving as an abutment for the spring f f 3 is a transverse rod or pin for preventing the Washer f 2 from lateral movement.

t' is a pivot carried by the casing a and h and h are two ratchet pawls pivoted to the shalt 'i and being of a particular shape. The free end of the ratchet pawl h is provided with two projections or peaks k 10 leaving an interstice'l between them (see Fig. G, which is a plan elevation oi the ratchet pawl h according to Fig. 5). Fig. 8 illustrates the ratehet pawl in a front elevation.

g is a curved ledge 'or tong-ue (see Fig. 9) which is attached to' the` cam plate g being provided with a circumerential depression g As to be seen from Fig. 1 the tooth c rides on the ratchet wheel d and the tooth Ic bears on the tongue g", and the recess k takes over the eam-plate g. The tooth h of the ratchet pawl h is of such a width, that it is adapted to bear temporarily against the ratchet wheel d and the circumference of the cam-plate e, as to be seen from Fig. 1 and Fig. 7, in which flatter figure the pawl is illustrated removed from the ratchet wheel. g and g are two stops or pins nearly diametrically and fixed to the cam plate g (see Figs. l and 4.)

r is a detent lever provided with a right-angled extremity r" (see Fig. 1') and pivotedat r' to the casing a,

7 is a projection on the detent lever T, riding therewith on the cam disk m loosely mounted on the shalt m? and provided with the 'circumferential depression m o is' a toothed wheel which meshes with a ratchet wheel d and is fixedly connected with a cam-disk m. The shaft m? is carried by the casing a. i

It will be observed that the hookr is adapted -tointerfere either with the stop 9 or the stop g'.`

The operation of the forcgoing described mechanism is as followsz-As it will be observed from Fig.l the indicating flag c cannot be put down because the tooth h of the spring-pressed pawl h engages with the ratchet wheel c l. This engagement is permitted as the depression g is opposite to the tooth h of the ratchet pawl h'. For the purpose of releasing the ratchet wheel from the pawl h the handlef and the cam plate g respectively are rotated in the direction o the arrow I (see Fig. 1). Due to thisrotation the tooth h is engage'd by the a'scending part g of the circumferenc'e of the cam plate 9, whereby the pawl h and the ratchet wheel d are disengaged. At thesame time the spring-pressed pawl h is riding on the curved'tongue g* thus preventing the tooth 7:2 from 'engaging with the ratchet wheel d The cam plate g and the handlc f respectivel'y are rotated until the stop g' pushes against the hook 79 Then the peak 10 has fallen down from the curved tongue g" and the peak or tooth Ic' engages with the. ratchet 'wheel d. This position is illustrated in the Fig. 10, and now the indicating flag c can be put down. By the ro-. tation of the flag arm the cam disk m and the toothed wheel o engaging with the ratchet wheel d are also turned round, till the projection 7 slides into thede pression m. The detent lover r is thereby lowered and the hook-r is moved downwardly and thereby removed from the path of the stop g' (see Fig. ll). In the posi- 'tion occupied by -the various parts of thedetent-device according to Fig. ll the indicating flag cannot be placed vertically owing to the engagement of the spring depressed paw'l h? with the ratchet-wheel d. For diseni gaging these parts to enable .the indicating flag, to be placedvertically the handle f is further rotated in the direction of the arrow I, whereby the peak Ic engages with the curved tongue g and disengages thereby the tooth Ic' from the ratchet wheel d. "This disengagement has taken place when the stop g interferes with or pushes against the ho'ok c (see Fig. 12). Now the indicating flag .can be tur'ned in the direction of the arrow II (see Fig. 12) in its upright position At the same time the cam plate m and the toothed wheel o respectively are rbtated and the hook r thereby is dis'- engaged from the stop g ,Now the detent-devi'ce occupies its initial position, as illustrated inFig. 1. i

lt may be observed that the movement of the cam plate g must be controlled by a detent (levice or in any other convenient manner, as it is well-known, that the cam plate is allowed tobe rotated in only one direction.

This arrangement is of itself well known and is thereforo not further illustrated.

1. Iu a fare-indicator, the comblnation with a casio:: provided with a hole, of two telescoped shatts; passing through said lole in the casing, a signal carried hy the .one sha'ft and means for rendering the movement of the one shaft dependent on the movement of the second shaft, and means for Operating the second shaft' w 2. In a fare-indicator, the combinatlon with a casing, of a hollow shaft or sleeve passing through an opening in the casing, a solid shaft telescopically arranged inlthe said sleeve, and -adpted to he rotated, an indicating fla fixedly mounted on the sleeve and adapted to be turned therewith, a handle fixedly connected with the solid shatt, a 'atchet wheel fixedly mountedbn the sleeve, a cam-plote keyed on the solid shatt, a detent device for -contr'olling the movement of the 'atchet wheel and the 'indicating flag respectively, and a detent 'device for controlling the movement of'the can-plate. v

3. In the he'eindescrihed comhination with a casing plate, a spring-pressed ratchet pawl' (h') (h') having nn enlarged detent tooth riding therewith, on the ratchut wheel and the cam-plate, and a spring-pressed ratchet pawl, hoth pawlsheing pi'voted to the casing and the latter having two peaks or teeth ritling on tlecam plate and the ratchet wheel respectvely.

4. In' the hcreindescrihed comhination with a casing and two telescoped shafts (b ende), a detent device for controlling the movement of the shaft (0) consisting of a cam plate (g) having a depression (y and fixedly mounted on the shaft (c), two steps (g', g attacled to the cam plate, a curved tongue (g attached to the cam plate, a detent lever (r) pivoted to the casing and cooperating with its free end with the said stops, a cam disk and a toothed wheel connected with each other and turn ahlv carried hy the caslng, the cam-disk supporting the said-detentlevemand a handle fixcdly connected with the shatt (c). i v V 5. in a fare indicator, the conhination with a casing, of two telescoped shafts (I: and e), an indicating flag' w) and a handle being seem-ed to` the shutts (b and e) respectively, a ratchet wheel and a cam plate having a depression and two steps, fixedly ca-ried hy the shafts (b and'a respectively, a curvecl tongue attached to the cam late a ratchet pawlpivoted to the casing and riding with its: enlarged detent tooth on the cam plate and the ratchet wheel, a 'atchet pawl pivoted to the cusing and riding with its two pezks or detent teeth on the ratclet wheel and the curved-tongue respectlvely, a detent lever pivotcd to the casing and coperating with its free end with the said stops, a cam disk and a toothed wheel fixed to each other and' tnrnahly carried hy the casing,' the toothcd wheel engging with the said -atchet wheel, the camdisk supportingope'atively the detent lover( ln witness whereof I have hereunto set my hand in the

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