US832438A - Station-indicator for railways. - Google Patents

Description

No. 832,438. PATENTED OCT. 2, 1906.`

D. I'. WHITGOMB. A STATION INDICATOR FOR RAILWAYS.

APPLIOATIQN FILED Mmm. 1905.

' a SHEETS-SHEET 1.

f Anofmev THE NoRRls PETERS C., WASHINGTUN, n. c.

No. 832,438. i IATENTED OCT. 2, 1906. D. I'. WHITGOMB. STATION INDICATOR POR RAILWAYS.

APPLIGATION FILED MAR. 31. 1905.

3 SHEETS-SHEET 2.

j Arm/mln;

THE NoRRls PETERS co.. wAsHmnraN, n. c.

PATENTBD 00T. 2, 1906.

D. I'. WHITGOMB. STATION INDICATOR FOR RAILWAYS.

APPLIGATION FILED MAR-31. 1905.

3 SHEETS-SHEET 3.

/Nl/ENTUR,

` ATTOHNEY UNITED STATES PAT-ENT oFFroE.

DANIEL F.V WHITCOMB, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO ALBERT J. KOI-INE, OF TOLEDO, OHIO.

STATION-INDICATOR FOR RAILWAYS.

Specification of Letters Patent.

Patented Oct. 2, 1906.

Application filed March 31,1905. Serial No. 253.167.

` exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in station-indicators for railway-cars, and more especially to' indicators for use on street or tram cars or 'vehicles' having designated stopping-places or stations along the line of travel.

One object of this invention is to provide a station-indicator which may be readily operated from any suitable point 'on the car to indicate or display to the passengers the successive stopping places vor stations on the line.'

Another object is to provide a station-im dicator comprising two winding-drums arrangeda'suitab'le distance apart vertically, a band adapted to carry 'the names ofthe stations or stopping-places and leading between and operatively engaging both drums, and means whereby the sai'd band is uniformly actuated between the drums during the application of power to the oneV or the other drum regardless of the varying diameter of the laden drum ont'o which the band is boing wound.

Another object is to provide simple, convenient, and meritorious means whereby the 'actuating mechanism can be readily adjusted 'to cause the band to travel in either direction, so as to accommodate the convenient use of the same band to indicate stations on the going and returning trips.

With these objects in view and to the end vof realizing other advantages hereinafter aption on line 3 3, Fig. 2. Fig. 4 isa vertical section on line 4 4, Fig. 2, looking in the' direction indicated by the arrow. Fig. 5 is a vertical section on line 5 5, Fig. 2, looking in the direction indicated by the arrow. Fig. 6 is a top plan, largely in'horizontal section, on line 6 6, Fig. 5. Fig. 7 is a top plan in section'on line 7 7, Fig. 2. Fig. 8 is an elevation in vertical section on line' 8 8, Fig. l. Fig. 9 is a section on line 9 '9, Fig. 8, looking inwardly. Fig. I0 is a section on line 10 10, Fig. 8, looking in the direction indicated by the arrow. Figs. 5, 6, and 7 are drawn on a larger scale than Figs. l, 2, 3, and 1l, and Figs. 8, 9, and l0 are drawn on a larger scale than Figs. 5, 6, and 7.

Referring to the drawings, A indicates the inclosing case of the station-indicator.v The case A is adapted to be placed in a conspicuous place within the car where the names of stations displayed by the station-name-carrying band B will be in full view of the passengers on the car. The case A is provided (see Figs. 1 and 4) with two oppositely-located windows O, at which the names to be carried by the band B are displayed-that is, the band B is adapted to carry the names (not shown) of the stopping-places or stations at opposite sides thereof, and the corresponding names at opposite sides of the band are simultaneously displayed at the different windows, respectively. Within the case A are contained two horizontally-arranged par* vallel winding-drums D, which are located 'ranged within and supported from the case A. Preferably the band B leads between the guide-rollers e, arranged between the upper drum and the windows, and between guide-rollers f, arranged between the lower drum and the windows. The rollers are parallel with the drums and supported from the case A. A bar G is arranged vertically in suitable proximity to adjacent ends of theV two drums and within one side of the case A. The bar G is adjustable laterally. The bar Gis also movable vertically or endwise.

Each drum D (see Figs. I, 2, 7, 8, and 9) is provided axially and adjacent the bar G with a trunnion d, iwhich bears a pinion h, loosely mounted on the said trunnion, and means for IOO transmitting motion from the said pinion to the said drum is provided and comprises,

preferably,v a ratchet-wheel J, loosely mounted on the aforesaid trunnion and engaged by 'a pawl K, which is pivoted, as at 7c, to the pinion, and a suitably-applied spring m, which is supported from the pinion, acts to retain the pawl in engagement with the ratchet-wheel. A slip-clutch is provided to operatively connect the said ratchet-wheel with the aforesaid trunnion. The said cluteh- (see Figs. 2, 7, 8, and consists of two companion members Land Z, with the clutch member L integral or rigid `with the ratchetwheel and with the clutch member l operatively mounted on and slidable endwise of the trunnion.` The operative connection between the slidable clutch member l and the .trunnion (see Figs. 7 and 10) consists, preferably, of a key n, which extends from within a lreyway Z, with which the clutch member is internally provided, into the trunnion,

which keyway extends from-end to end .of the said clutch member. A suitably-applied spiral spring o acts `to retain the slidable clutch member l in operative. engagement with the companion and relatively stationary-clutch member L. The opposing ends of the two .companion clutch members are provided, as at 15, Fig. 2, with interlocking proj ections. which are rounded circumferentially of the clutch to enable the clutch member :to slip-relative to the clutch member Z during the rotation of the pinion 7i inthe direction required to wind the bandB upon the drum `provided with the said clutch when a pullv is exerted upon the band by the chain-andsprocket mechanism hereinafter described in the direction required to arrest the winding oi-the band upon the drum. .The band B is arranged to wind upon and unwind from the different drums, respectively, at the same side .of the, axes of the drums, and the pawl K of each pinion h and the engaging ratchet-wheel are'arranged reversely relative to theother pinion and cooperating ratchetwheel.

The'bar G (see Figs. 1 and 2) is provided with two reversely-arranged rack-forming portions g and g, which are arranged a suitable distance apart vertically at opposite sides, respective of the axes of the drums and mesh with the different pinions t and h, respectively-that is, the relative arrangement of the two racks is such that when one of the racks meshes with one of the pinions the other rack is out of mesh with the other pinion, as shown in iFig. 2, and the one or the other rack is in mesh with the adjacent and cooperating pinion, according as the bar G is in the one or the other of its positions laterally or horizontally. The bar G (see Figs. 2, 3, and 5) engages a correspondingly-arranged slideway 16, located between the two rackforming portions of the bar and formed in the inner end of a slide P, whichis arranged horizontally and extends outside of the ease A, which slide yengages a correspondingly-arranged slideway-forming member V17, integral with or rigid with the said case. The ,slideP (see Figs. 2 and 3) is rovided with two shoulders 18, spaced apart ongitudinally "ofthe slide and arranged at opposite ends, respectively7 of the slideway-iorming member 17. The shoulders 18 are located enough -arther apart than the ends of the slidewayforming member 17 to accommodate the-lateral or horizontal adjustment of the. bar G and in conjunction. with the said slidewayforming member form stops for limiting the movement of the slide in, opposite directions, respectively. It will be observed, therefore, that the bar G is operatively connected with and movable vertically-independently of the means employed to adjust it laterally or horizontally. e i

The bar G above its upper rack-forming portion (see Figs. 1 and 2) extends through a slot 20, formed in an arm 22, which projects inwardly rom and-is rigid with the case A. The slot y20. is parallel with the'lateralv or horizontal movement of the .bar-G and is long enough to accommodate the lateral or horizontal adjustment of the said bar. The bar G is provided with anupwardly-facing shoulder orf shoulders 23 at the under side of the arm. 22, which cooperates with the said shoulder or shoulders in limiting the upward movement of the bar, and a suitably-applied spiral springQ, attached at,v one end` tothe bar and atits opposite end to the case A, acts to retain thebar in its upper.position. f

The bar G atits lower end(see Figs. 1 an 2) engages a recess 25, formed in the upper end of the core r of a vertically-arranged solenoid R, contained within the lower end of the case A, and the bar extends, as at 26, into the undercut portion of the said recess. The recess 25 is long enough and arranged as required to accommodate the lateral or horizontal adjustment of the bar G and to prevent a disengagement of the bar from the core `oi the solenoid during such lateral or horizontal ladjustment of the bar. Normally the core r is in its outer position and the bar G in its upper position,` as shown in Figs. 1 and 2, and an energizing of the solenoid results in the inward movement of the core, and consequently in the downward movement of the bar G against the action of the spring However, the downward movement of the bar G may be eiiected mechanic-- ally instead of electrically.

In the station-indicator illustrated the upper rack-forming portion of the bar G meshes with the pinion connected with the upper drum, and the lower rack-forming portion of the bar is out of mesh with the pinion instrumental in transmitting motion to the lower drum, so that a downward IOO esaass movement of the said bar against the actua- Y tion of the spring Q will result in the actuation of the upper drum in the direction required to wind up the engaging band B, and the lower drum is free to pay out the said band, and the outer shoulder 18 ofthe slide P abuts against the slideway-forming member 17. By actuating the slide P outwardly until its inner shoulder 18 abuts against the slideway-forming member 17 the upper rackforming portion of the bar G is shifted out of mesh with the engaging pinion and the lower rack-forming portion of the bar is brought into mesh with the pinion instrumental in transmitting motion to the lower drum, whereupon a downward movement of the bar will result in the winding of the band B from the upper drum onto the lower drum. The arrangement of the ratchet-wheels J and the pawls K is such that no motionis transmitted to the drums D during the upward movement of the bar G.

It is obvious that the drum upon which the band Bis being wound during the rotation of the said drum would wind up more band during the coiling of each successive layer of band onto the drum if some means were not provided for holding back upon the band during the aforesaid rotation of the drum, so as to cause the clutch member formed upon the ratchetwheel engaged by the pawl of the pinion instrumental in transmitting motion to the said drum to slip relative to the companion clutch member during the winding up of band by the drum.

Means employed for insuring uniformity in the length of the intermittent-movements of the band B between the two drums comprises two rows of' perforations b, formed in the band B, which rows (see Fig. 2) are arranged near opposite longitudinal edges, respectively, of the said band, with the perfoiations of each row of perforations spaced equidistantlylongitudinally of the band. (See Figs. 2, 8, 5, 6, and 8.) n

Two axles T (see Figs. 1, 2, 4, and 5)are arranged between and parallel with the two drums D. The axles T are suitably spaced vertically and supported in any approved manner from the case A. Each axle T (see Figs. 2 and 3) is operatively provided with two sprocket-wheels t, arranged at one side of and in suitable proximity to the band B and between and in suitably proximity to opposite longitudinal edges, respectively, of the band. Two endless chains W operatively engage the different sprocket-wheels, respectively, of each axle and are provided at their outer sides with projections w, which are spa-ced equidistantly longitudinally of the chains. The spacing of the projections w of the chains W exactly corresponds with the spacing of the perforations of the band B. The chains l/V are actuated 'simultaneously with the actuation of the Ybar G, and

the arrangement of the parts is such that the projections w of the chains engage with perforation b in the band B during the actuation of the chains. Tt will be observed, therefore, that by actuating the chains equidistantly during the successive movements of the chains the band B moves equidistantly during the intermittent movements of the band in winding the band from one of the drums onto the other drum. I would here remark that the band B is preferably made of strong textile fabric or other suitable ma# terialsuch, for instance, as tough paper.

The means employed for actuating the chains W comprises two parallel bolts u and which v(see Figs. 1, 5, and 6) are arranged horizontally and at a right angle to the drums D. The bolts u and are movable endwise and extend through different slideway-forming holes 27, respectively, in the bar G centrally between the ends of the said bar. short distance apart vertically, and one of the chains W is provided with pairs of inwardly-projecting lugs 28, with the pairs of lugs 28 spaced equidistantly longitudinally of the chain and with the lugs of each pair of lugs arranged far enough apart longitudinally of the chain to easily accommodate the passage between the said lugs of a bolt. The space between the lugs of each pair of lugs 28 is open at the sides of the chain to accommo date the movement of the bolts into position and from between the lugs of pairs of lugs 28. The bolts are arranged to operate at oppo site sides, respectively, of the bar G, and the arrangement of the parts is, furthermore, such that when one of the bolts is in its operative position between the two lugs of a pair of lugs 28 the other bolt is inoperative, being outside of the adjacent space between two lugs of a pair of lugs 28. In the arrangement ofthe parts illustrated the bolt u is in an operative position between the two lugs of a pair of lugs 28, as shown in Figs. 5 and 6, and the bolt is inoperative, as required when the band B is wound from thelower drum onto the upper drum; but when the bar G is shifted horizontally and laterally, as required preparatory to winding the band lrom the upper drum onto the lower drum, the bolt u is rendered inoperative and the bolt x brought into an operative position between the two lugs of a pair of lugs 28.

Each bolt' is provided (see Figs. 5 and 6) with a laterally-projecting member 30. Any suitable member rigid with the casing A is provided with a vertically-arranged guideway 82 for the said member 30, and two parallel inclines 83 and 34 are arranged at the The said bolts are shown arranged a` IOO IIO

lower end and upper end, respectively, of the Y at the lower end of the guideway and out of the guideway at the upper end of the guideway.

The arrangement of the parts is such that both bolts u and are simultaneously shifted endwise,'but in opposite directions, respectively that the members 30 of the bolts are arranged to descend externally of the guideways 32 during the descent of the bar G, that during the descent of the said. bar the bolt members 30 come into engagement with the lower inclines 33 and thereu on are actuated by the latter through the ower openings 35 of the Uuideways into the lower ends of the said guideways, so as to bring the bolts into their inner or rearward positions and remove the bolt which engages the space between the lugs of a pair of lugs 28 from the said space; that the bolt members 30 ascend within the guideways during the upward movement of the bar G and come into engagement with the upper inclines 34 by which the said bolt members are discharged from the said guideways through the upper openings 35 of the guideways. The arrangement of the parts is, furthermore, such that by the discharge of the members 30 of the bolts from the upper ends of the guideways 32 the bolts are actuated into their outer or forward position. Pins 36, which are driven into the rear ends of the bolts, abut against the bar G in the forward or outer position of the bolts and limit the movement ofthe bolts upon the actuation of the bolts by the upper inclines 34. vIt will be observed, therefore, that both bolts are actuated during the endwise movement of the bar G, but only one of the said bolts operates at a time in transmitting motion to the chains W, because, asalready indicated, when one of the said bolts is in position to operate between the'two lugs of a pair of lugs 28 the other bolt is in an inoperative position relative to the adjacent chain.

By the construction hereinbefore described it will be observed that the movement of the band B is gaged or controlled by the operation of the chain-and-sprocket mechanism;

that the bolt fu, or the bolt a: is performing its function according as the band B is wound onto the upper or onto the lower drum; that, for instance, if, as shown, the band is to be wound onto the upper drum the bolt u is in an operative position between two chainlugs 28 duringl the actuation of the bar Gr downwardly to wind the band B onto the said drum; that the perforations t in the band B are continuously engaged by proj ections 'w of the chains W; that obviously, therefore, the band cannot be pulled away from the chains during the actuation of the band; that because of the increase in the number of layers of band wound upon the said drum during the winding of the band on the said drum the slip-clutch instrumental in by the respective incline 23 after the desired amount of band has been wound on the drum, but only upon or simultaneously with the termination of the downward stroke of the bar, and obviously the clutch during the said stroke of the bar will slip continuously as soon as the size of the roll is sufficient to take up theband at a faster rate than the chain can feed it, and hence the same amount of band is wound upon the band-winding-up drum during the successive operations of the said drum regardless of the gradual increase in the number of layers of band upon the said drum.

What I claim is- 1,'In a station-indicator for railways, the

combination, with a case, two horizontallyarranged vertically-spaced parallel windingdrums arranged within and supported from the case, and a band leading between and operatively connected with the drums, of a vertically-arranged bar having two reverselyarranged rack-forming portions arranged in suitable proximity to the different drums respectively at the adjacent ends ofthe drums and at opposite sides respectively ofthe axes of the drums,which bar is movable vertically and also laterally at a right angle to the vertical movement of the bar; means for actuating the' bar vertically; two pinions adapted to be rotated by the different rack-forming portions respectively of the bar 5 means for transmitting motion from one of the pinions to one of the drums, and means for transmitting motion from the other pinion to the other drum, and the arrangement of the parts being such that only the one or the other pinion is engaged by the adjacent rackforming portion of the bar according as the bar is in the one or the other of its positions laterally, that during the vertical movement of the bar in the one direction the one or the other drum shall'be rotated in the direction required to wind up the engaging band according as operative connection between the bar and the one or the other drum has been established, and that the driven pinion shall operate idly during the vertical movement of the bar in the opposite direction.

2. In a station-indicator for railways, the combination, with a case, two suitablyspaced parallel windingdrums arranged within the case, and a band leading between and operatively connected with the drums,

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tically-arranged bar having of a bar having two rack-forming portions arranged in suitable proximity to the difierentdrums respectively at the adjacent ends of the drums, which bar is movable endwise and also laterally; means for actuating the bar endwise; two pinions adapted to be rotated by the different rack-formingportions respectively of the'bar; means for transmitting motion from one of. the pinions to one of the drums, and means for transmitting motion from the other pinion to the other drum, and the arrangement of the parts being such that only the one or the other pinion is engaged by the adjacent rack-forming portion oi' the bar according as the bar is in the one or the other of its positions laterally, and that during the endwise movement of the bar in one direction the one or the other drum shall be rotated in the direction required to wind up the engaging band according as operative connection between the bar andthe one or the other drum has been. established, and that the driven pinion shall operate idly during the endwise movement of the bar in the opposite direction.

.3. :In a station-indicator i'or railways, the combination, with a-case, twohorizontallyarranged -vertically-spaced parallel windingdrums arranged within and supported rom the case, and a band leadingvbetween and operatively connected with the drums, of a-vertwo rack-forming portionsv arranged in suitable proximity to the different drums respectively at the adjacent ends oi the drums, which bar is movable vertically; a slide movable horizontally and at a right angle to the vertical movementI of the bar; such an operative connection between the slide and bar as will accommodate a vertical movement oi the .bar independently of the slide means for actuating the bar vertically; two pinions adapted to be rotated by the different rack-forming portions respectively of the bar; means for transmitting motion from one of the pinions to one of the drums, and means for transmitting motion from the other pinion to the other` drum, all arranged and operating substantially as shown, for the purpose speciiied.

4. ln a station-indicator for railways, the combination, with a case, two suitablyspaced parallel winding-drums arranged within the case, and a band leading between and operatively connected with the drums, of an endwise-shiftable bar having two rack- 'forming portionsarranged in suitable proximity to the different drums respectively at the adjacent ends of the drums; a slide arranged at a right angle to the bar, which slide is operatively connected with the bar without interfering with an endwise movement of the bar independently of the slide; two pinions adapted to 'be rotated by the different rack-forming portions respectively of the bar; means for transmitting motion from one of the pinions to one of the drums, and means for transmitting motion from the other pinion to the other drum, all relatively arranged and operating substantially as shown, for the purpose speciiied.

5. In a station-indicator for railways, the combination, with a case, two suitablyspaced parallel windingdrumsaarranged within and supported from the case, and a band leading between and operatively connected with the drums, of an endwise-shiftable bar having two rack-forming portions arranged in suitable proximity to the different drums respectively at the adjacent ends of the drums, which bar is also movable laterally g a spring acting to retain the bar in its normal position so far as endwise movement of the bar is concerned; means for actuating the bar endwise against the action of the spring two pinions adapted to be rotated by the different rack-forming portions respectively of the bar 5 means ior transmitting motion from one of the pinions to one of the drums, and means for transmitting motion from the other pinion to the other drum, and the arrangement of the parts being such that only the one or the other pinion is engaged: by the adjacent rack-forming portionof thef'bar according as the bar is in the one or the other of its positions laterally, that during the endwise movement of the bar by the said means the one or the other drum shall be rotated in the direction required to wind up'the engaging band according as operative connection between the bar and the one or the other drum has been established, and that the driven pinion shall operate idly duringthe actuation of the bar by the spring.

6. In a station-indicator for railways,the combination, with a case, two suitablyspaced parallel winding drums arranged within and supported from the case, and a band leading between and operatively connected with the drums, of an endwise-shiftable bar having two rack-forming portions arranged in suitable proximity to the different drums respectively at the adjacent ends of the drums, which bar is also movable laterally; a solenoid having its core arranged parallel with the endwise travel ofthe bar and normally in its outer position; a spring acting to retain the said core in its outer position; such an operative connection between the bar andthe core of the solenoid as will accommodate the lateral movement of the bar independently of the core; two pinions adapted to be rotated by the dierent rack-forming portions respectively of the bar; means for transmitting motion Jfrom one of the pinions to one of the drums, and means for transmitting motion from the other pinion to the other drum, all relatively arranged and operating substantially as shown, for the purpose specified.

7. In a station-indicatorfor railways,the

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combination, with two suitably-spaced winding-drums; a band extending between and operatively engaging the drums drum-actuating means comprising two pinions instrumental in transmitting motion to the different drums respectively, and an endwiseshiftable laterally-adjustable bar having two reversely arranged rack forming portions adapted to mesh with the different pinions respectively at opposite sides respectively of the axes of the drums, of a slide movable in a plane at a right angle to the travel of the bar and provided with two shoulders arranged a suitable distance apart longitudinally of the travel of the slide, said slide being provided with a slideway parallel with and engaged by the bar, and a stationary slideway-forming member engaged by the slide and arranged between the aforesaid shoulders with the one end or the other end of the said slideway-forming member engaged by the opposing shoulder according as the slide is in the one or the other of its lateral positions, and the one or the other rackforming portion of the bar being in mesh with the coperating pinion according as the slide is in the one or the other of its lateral positions.

8. In a station-indicator for railways, the combination, with two suitably-spaced winding-drums, a band extending between and operatively engaging the drums, drum-actuating means comprising two pinions instrumental in transmitting motion to the dilferent drums respectively, and an endwiseshiftable laterally-adjustable bar having two reversely arranged rack forming portions adapted to mesh with the dierent pinions respectively at opposite sides respectively of the axes of the drums, of a slide movable in a plane at alight angle to the travel of the bar and provided with a slideway parallel with and engaged by the bar a stationary slideway-forming member engaged by the slide, l and stops for limiting the endwise movement of the slide, and the one or the other rackforming portion of the bar being in mesh with the coperating pinion according as the slide is in the one or the other of its lateral positions.

9. In a station-indicator for railways, the combination, with two vertically-spaced horizontally arranged parallel windingdrums; a band extending between and operatively connected with the drums, drumactuating means comprising two pinions instrumental in transmitting motion to the different drums respectively, and an endwiseshiftable vertically-arranged laterally-adj ustable bar having two rack-forming portions adapted to mesh and coperate with the different pinions respectively, of a slide movable in a horizontal plane and at a right angle to the travel of the bar and provided with a vertically-arranged slideway engaged 1 by the bar, and a slideway for the horizontally-movable slide, and the one or the other rackorming portion of the bar being in mesh with the coperating pinion according as the slide is in the one or the other of its lateral positions.

l0. In a station-indicator for railways, two vertically-spaced horizontally-arranged parallel winding-drums; a band extending bctween and operatively connected with the drums ,i drum-actuating means comprising ltwo pinions instrumental in transmitting motion to the dilerent drums respectively, and an endwise-shiftable upright bar movable laterally and having two reversely-arranged rack-forming portions adapted to mes with the different pinions respectively at opposite sides respectively of the axes of the drums, with the one or the other rackforming portion in mesh with the co erating pinion according as the bar is in t e one or theother of its positions laterally.-

l1. In a station-indicator for railways, the combination, with a case two suitablyspaced parallel windingdrums arranged within and supported from the case a band leading' between and operatively connected with the drums, which band is rovided with perforations suitably spaced lbngitudinally of the band; an endwise-shiftable and laterally-movable bar having two reversely-arranged raclr-formi'ng portions arranged in suitable proximity to the different drums respectively at adjacent ends of the drums and at opposite sides respectively of the axes of IOO the drums means for actuating the bar end` wise; two pinions adapted to be rotated by the different rack-forming portions respectively o the bar; means for transmitting motion from one of the pinions to one of the drums and comprising a slip-clutch which has one of its companion members operatively connected with the pinion and its other member shiftable endwise and operatively connected with the drum; means acting to retain the shiftable clutch member of the said slip-clutch in operative enga ement with the relatively stationary i clutc member; means for `transmitting motion from the other pinion to the other drum and comprising a slip-clutch which has one of its companion members operatively connected with the pinion and its other member shiftable endwise and operatively connected with the drum; means acting to retain the shiftable clutch member of the last-mentioned slipclutch in operative en a ement with the other member of the sai c utch, of two axles spaced between and arranged parallel with the drums, two sprocket-wheels on each axle a suitable distance apart longitudinally of the axle; endless chains operatively connecting the sprocket-wheels respectively on one axle with the sprocket-wheels respectively on the other axle and being provided with pro- IIO IIS

jecting members spaced equidistantly longitudinally of the chains and arranged'to engage the perforations in the band, and means for transmitting motion from the aforesaid bar to one of the chains, all relatively arranged and operating substantially as shown, for the urpose specified.

12. n a station-indicator for railways, the combination, with a case; two suitablyspaced parallel winding drums arranged within and supported from the case the band leading between and operatively connected with the drums, which band is provided with two rows of perforations, with the perforations of each row spaced equidistantly longitudinally of the band andl with the two rows arranged near opposite longitudinal edges respectively of the band, and drum-actuating mechanism comprising a slip-clutch, of two axles spaced between and arran ed parallel with the drums; two sprocketeels on each axle a suitable distance apart longitudinally of the axle; endless chains operatively connecting the sprocket-wheels respectively on one axle with the sprocket-wheels respectively on the other axle and being provided with projecting members spaced equidistantly longitudinally of the chains and arranged to engage the perforations in the band, and means whereby mot-ion is transmitted to one of the chains during the operation of the drum-actuating mechanism.

13. In a station-indicator for railways, the combination, with a case; two suitablyspaced parallel winding drums arranged within and supported from the case; a band leading between and operatively connected with the drums, which band is provided with perforations suitably spaced longitudinally of the band, and drum-actuating mechanism comprising a slip-clutch, of a suitably-applied endless chain provided with projecting members arranged to engage the perforations in the band, and means whereby motion is transmitted to the chain during the operation of the drum-operating mechanism.

14. In a station-indicator for railways, the combination, with two suitably-spaced parallel winding-drums; a band extending between and operatively engaging both drums and provided with two rows of perforations, with the perforations of each row suitably spaced longitudinally of the band and with the two rows arranged near opposite longitudinal edges respectively of the band, and drum-actuating means comprising two pinions instrumental in transmitting motion to the different drums respectively, an endwiseshiftable bar movable laterally and having two reversely-arranged rack-forming portions adapted to mesh with the different pinions respectively at opposite sides respectively ofthe axes of the drums, with the one or the other rack-forming portion in mesh with the cooperating pinion according as the bar is in the one or the other of its positions laterally, and slip-clutches instrumental in establishing operati ve connection between the pin- 'ions and the drums, of two parallel endless chains having projections suitably spaced longitudinally of the chains, with the projecting members of the one chain arranged to engage the perforations of one of the aforesaid rows of perforations, with the projecting members of the other chain arranged to engage the perforations of the other row of perforations, and withv one of the said chains provided also with pairs of lugs, with the lugs of each pair of lugs spaced longitudinally of the chains, and with the pairs of lugs spaced equidistantly longitudinally of the chains; means for transmitting motion from the one chain to the other chain; two bolts extending slidably through the aforesaid bar, which bolts are adapted to enter the spaces between-the lugs of the pairs of lugs, and means for actuating the bolts endwise, and the arrangement of the parts being such that the different bolts are in an operative position and an inoperative position respectively relative to the aforesaid lugs, and the one or the other bolt is in an operative position relative to the said lugs according as the bar is in the one or the other of its positions laterally.

15. In a station-indicator for railways, the combination, with two suitably-spaced winding-drums; a band extending between and operatively engaging both drums and provided with perforations suitably spaced longitudinally of the band, and drum-actuatin means comprising two pinions instrumenta in transmitting motion to the different drums respectively; an endwise-shiftable bar movable laterally and having two reversely-arranged rack-forming portions adapted to mesh with the different pinions respectively at opposite sides respectively of the axes of the drums, with theone or the other rackforming portion in mesh with the coperating pinion according as the bar is in the one or the other of its positions laterally, and slip-clutches instrumental in establishing operative connection between the pinions and the drums, of two parallel endless chains having projections suitably spaced longitudinally of the chains and arranged to engage the aforesaid perforations, with one of the chains provided also with pairs of lugs, with the lugs of each pair of lugs spaced longitudinally of the chains, and with the pairs of lugs suitably spaced longitudinally of the chains; means for transmitting motion from the one chain to the other chain; two bolts extending slidably through the aforesaid bar, which bolts are adapted to enter the spaces between the lugs of the pairs of lugs, and means for actuating the bolts endwise, and the arrangement of the parts being such that the diiferent bolts are in an operative'position and an inoperative position respectively TOO IIO

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relative to the aforesaid lugs, and the one or the other bolt is inan operative position relative to the said lugs according as the bar is in the one or the other of its positions laterally.

16. In a station-indicator for railways, the combination, with two suitably-spaced parallel winding-drums.; a band extending between and operatively engaging both drums and provided with perforations suitably spaced longitudinally of the band, and drum* actuating means comprising a slip-clutch, of

an endless chain having projections suitably spaced longitudinally of the chains and arranged to engage the aforesaid perforations, and means for actuating the chain during the operation of the drum-actuating means.

In testimony whereof I sign the foregoing specification in the presence of two witnesses.

DANIEL F. WHITCOMB.

Witnesses C. H. DoRER, B. C. BROWN.

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