US1637835A - Danger-signal attachment for locomotives - Google Patents

Description

1Q637835 I Q- R SLE 5 DANGER SIGNAL ATTACHMENT FOR-LOCOMOTIVES";

2 Filed Sept. 41926 2 Sham-She. 1,

locomotive whistle whens danger signal is Patented Au 2, 1927.

ime -me or'ro ROESLER, or PHILADELPHIA,-PENNSYLVANIA.-

DANGER-SIGTVAL ATTACHMENT FOR LOCOMOTIVES.

Application filed September 17, 1926. Serial No. 136,682. r

This invention relates generally to attachments .for locomotives, and has more particular'reference to a novel type of attachment for automatically operating the passed. I

The invention hasfor an ob ect' t'he provision of Ian-improved device of the above mentioned character-Which will be --posit'1've in operation, capable of being readily installed, and which can he manufactnred' and sold at a low cost." i

For further comprehension of the invention, and. of the objects and advantages thereof, reference will be had to the follow ing descriptlon and accompany ng drawings,

- and to. theap' ended claims inwhich thevarious novel' features of. the invention are more particularly set' forth.

Referring to the drawings terial part of this disclosure:

Fig. l'is. a side elevational forming a maview of a locomotive with the invention device applied.

thereto.

2 is a vertical sectional view taken on the line 2-2 'of Fig. 1. I a

Fig. 3 is a fragmentaryvertical sectional view taken on the line'33 of Fig. 2. Fig. 4 is a view similar to: Fig. -3,-but of i a slightly modified formof. cam element,

and the trip lever mechanism not being shown. M v I Fig. 5 is a, fragmentary enlarged partly sectional side 'view of the mechanism intimately associated with the whistle. I, Fig.- 6 is alvertical sectionalviewtaken on-the 'line'6-6of'Fig. 5. Fig. 7 is a fragmentary enlarged side ele- Fig. 8 is a plan view thereof.- I v Fig. 9 is a side elevational view thereof. .Fig. 10' is a front View of a signal with certain mechanism a'pplied'thereto for operating the cam element Fig. 11 is a'plan .view thereof. .Fig. 1-2 is a plan viewof thecam element. I

Fig.1?) is a side view thereof.

Fig. 14 i a fragmentary s1 de 'view of a fieXible connection. between the signal and the cam-element. I i I Y FigfllS-is a plan schematic View of the invention-device applied to a switch, to give warning when th'eswitch is opened or closed.

The reference numerallfi indicates alocova'tional 'view ofthe' trip. lever mechanism. I

motive having a customary steam whistle '16. The locomotive rests on rails 17, and ad- I IJacent said rails,- a signal 18 supported on p'ost 19 is shown: The top of rod 20.is pivotally. connected {with the signal 18,"and the loottom engages the arm 21. of a pivotally ear segment 22,-jmeshing with mounted rack 23, shdably .guidedby support 24 and connected to one endof rod 25,'to the other end of which cam element 26 is fastened.

The cam element- .26 is slidable in grooves 2 7 of bracket28 whichf'is f'z'i'stened to the ties 29, supporting rails 17.

Beneath the locomotive .15, a bracket,29zis fastened. The bracket 29 has-a pair, of upwardly projecting tongues 30 adja cent'an aperture 31, aisther' upwardly projecting tongue "32, and. finally another upwardly projecting tongue 33 positioned intermediate tongueswand 32.521 trip lever 84 is pivoted interniediate'of its ends between tongues 30,; as at 35, and projects through aperture-31. 'Co-axia'l with pivot points 35 are springs 36; the ends of Which act between the tongues 30 and thelever 34. each spring urging thezlev'er34 in opposite directions, so that the lever normally remains'vertical.

Aco nnecting' link 37 is pivotallyconnected with level-'34,- and the-otheinend of the'link is formed with an elongated slot, in which a pin 38'engages, said .pin heing'supported in the upper end of a hell-crank 39,- pivotally connected at 40 totongue 33, and the-,other' end of the bell-crank 39 has another pin 41,?

engaged in slot '42 of another connecting link 43, the upper end of which engages one arm of bell-crank. 44. ".The other arm of. loell-cra'nk 44 isconnected to link '45,Ithereafter to several bell-cranks 46, and links 47,

extending from the bottom ofthe locomotive --t0-'th'e 'top..- Another connecting link 48 ispivotally connected to leven34, the other end of thelink being formed with an elongated aperture 49, in-which a pin '50 is. engaged,

I 'said pin being secured'in one arm of a. bellcrank '51 pivotally mounted at 52 on tongue 33, and the other arm of the bell-crank 5'1 has another pin 53 engaged in elongated aperture 54 of the connecting link 43. Re-

ferring to Fig. 7 it will henoticed that the elongatedv apertures are so constructed that when the bottomof lever 34 is moved to the right, link 48 moves bell-crank 51-Which inturn moves link 43' downward, pulling one end ofbell-crank 44 downward. While link 37 idles due to the elongated slot on'the end of said link. Should the bottom of lever Y 34 be moved to the left,'-link 48 idles due to the elongated slot 49 'in this link, and link 37 moves one arm of bell-crank 39, the other arm pulling downwardon, link 43, which in turn pulls downward on one arm of the bell crank 44. I The uppermost link 47 connects with a link 55 having an aperture 56 and slidably guided by bracket 57 depending from the locomotive proper-15. Another bracket 58 is also fixed to the locomotive proper, and slidably supports a rod 59 normally urged forward by co-axially mounted spring .60. The rear of rod 59 is pivotally fastened to a lever 61 pivoted at 62 and having a connection lead 63. The top of link 55 is pivotally connected to another link 64formed at one end with an elongated aperture 65 in which pin 66 engages. The pin 66 is supported in one arm of bell-crank 67 pivotally mounted as at 68, and the other arm of the hell-crank connects with line 69 having one end fastened to one arm of bell-crank 70' pivotally mounted at 71. The other arm of bell-crank 70 connects with the plunger 72 of the steam whistle 16. p

'In'the operation of the device, as the sig nal 18 moves from the clear position to the danger position, the rod 20 commuicates the motion to gear segment 22, thereafter to rack 23, rod 25 and finally to the cam element 26. n the danger position the cam element lies in the path of motion of trip lever 34, while in the clear position it is off the path of motion of the trip lever. Regardless of the direction of motion of the locomotive, as the' trip lever is moved, the bell-crank 44 will be drawn downwardly, as previously ex-' plained. This motion is communicated to links 47, thereafter to link 55, and as the link 55 moves downwards, spring 60 causes rod 59 to engage in aperture 56, holding this link in its downward position until it is released by the locomotive operators pulling connection 63. When the link is in the said downward position, the steam whistle operates, because of the connections therewith,

namely bellcrank 7 0, line. 69, bell-crank 67,

link 64, and link 55. The locomotive operator may sound the whistle 16 by pulling line 69, and this motion will notaffect other parts of the mechanism due to the pin 66 riding in slot 65.

Iii-Figs. 3 and 4, a bracket 73 is shown depending from the locomotive bottom, and a. plunger 7 4 to scrape the rails 17 is slidably mounted in the bracket. normally urged The other end of cam element 26 has a fas-' tening means 78 for engagement with rod with the trip lever 34.

The rod 25 moves the cam element 26 into and out of the line of movement of the trip lever 34.

Fig. 14 shows a. modification of rod 25,

namely the rod is formed of two parts 25 and 25 fiexibly joined by means of a flange 82' on rod'25 said flange 82 engaging the ends of a bent member 80 slidable in' a'slot- -81 in rod 25*,the said rod 25 having a cap member 79 slidable against the bent member 80, while spring 83 acts between cap member 79 and bent member 80. It is readily seen While I have illustrated and described my invention with some degree of particularity,

I realize that in practice various alterations therein may be made. theright and privilege of changing the form of the details of construction or otherwise altering the arrangement of the correlated parts without departing from the spirit or the scope of the appended claims.

Having thus described. my inventiomwhat I claim as new and desire to secure by United States Letters Patent is:

1. In a device of the class described,

ing a whistle on top of a locomotive proper, the combination of a bracket fastened to the bottom of said locomotive, said bracket having an aperture, a-pairof tongues adjacent said aperture, a third tongue depending from said bracket, and a fourth tongue between said pair of tongues and said third tongue, a trip lever pivoted'to said pair of tongues, means for resiliently holding said trip lever vertical, a link pivoted to said trip lever, said link being formed with an elongated aperture on one end, va bell-crank pivoted to said fourth tongue, a pin in one arm of said bell-crank engaging in said 'elon gatedslot, another pin in the other arm of said bell-crank, a second link having two elongated slots, said second pin engaging in one of said elongated slots, av bellfcrank p1voted tosaid third tongue, sa1d'last mentioned llnk belng connected WIth- OIIQ arm of said bell-crank, a. third link connect;

ed with said trip lever, said last mentioned link being formed with an elongated ape-rture, a pin engaged in said last mentioned aperture, a bell-crank pivotally connected to said fourth tongue, said last mentioned bellcrank supporting said last mentioned pin, and another pin in the last mentioned bell- I therefore reserve crank, saidlast mentioned pin engaging the second elongated aperture of said link with the two elongated apertures, and means connected with'the bellcrank pivoted to saidfrom said-bracket, and .a fourth tongue between said pairof tongues and said third tongue, a trip lever-pivoted to said pair oi tongues,'means for resiliently holding said trip lever vertical, a link pivoted to said trip lever, said lin k being formed With an elongated aperture on oneend, a bell-crank pivoted to said fourth tongue, a pin in one arnrof said bell-crank engaging in said elongated slot, another pin in the other arm or" said bell-crank, a second link having two elongated slots, said second pm engaging in one of said elon ated slots, a bell-crank pivoted to said thir tongue, said last mentioned link being connected with one -arm' oi said 'bell-crank, a third link con'nected with said trip lever, said last mentioned link-being formed with an elongated aperture, a pin engaged in said last mentioned aperture, a bellcrank pivotally connected to said fourth tongue, said last mentioned bell-cranksupporting said last mentioned pin, and another ,pin in the last mentioned bell-crank, said last mention-ed pin engaging the second elongated aperture of said link with the two elongated apertures, and, means connected with the bell-crank pivoted to said third tongue for operating said whistle, said latter means comprising a series of links and bell-cranks.

3. In a device of the class described, having a whistle on top of a locomotive proper, the combination-of a bracket fastened to the bottom of said locomotive, said bracket 'having an aperture, a pair of tongues adjacent said aperture, a third tongue depending from said'bracket, and a fourth tongue between said pair of tongues and said third tongue, a trip lever pivoted to said pair of tongues,

' means for resiliently holding said trip lever verticaha link pivoted to said trip lever, said link being formed with an elongated aperture on one end, a bell-crank pivoted to said-fourth tongue, a pin vinone arm of said bell-crank engaging in said elongated slot, another pin in the other arm of said bell-cranln'a. second link having two elongated slots,: said second pin engaging in one of said elongated slots, a bell-crank pivoted to said third tongue, said last mentioned link being connected withone arm of said bell-crank, a. third link connected with said trip lever, said last mentioned link being formed with an elongated aperture, a pin ening an aperture, .a pair of tongues adjacent. I said aperture, a third tongue depending gaged in said last mentioned aperture, a bellcrank pivotally connected to said fourth tongue, said last mentioned bell-crank supporting said last mentioned pin, and anotherpin in the'last mentioned bell-crank, said last mentioned pin engaging the second elongated aperture'ot' said link with the two elongated apertures, means connected with the bell-crank pivoted to said third tongue for operating said whistle, and -means for releasably lockingsaid-whistle in operating condition upon the lever.

4;.In a device of the class described, having a whistle on top of a locomotive proper,- the combination of a bracket fastened to the bottom of said locomotive, said bracket hav operating o f'said trip ing an aperture, a: pair of tongues adjacent said aperture, a third-tongue depending from said bracket, and-a fourth tongue between said pair of tongues and said third tongue, a trip lever pivoted to said pair of tongues,

I means for resiliently holding said trip lever vertical,said means comprising springs mounted co-axially with .the pivot point'ot said lever, the ends ofsaid springs acting against said lever. and said pair of tongues, and said springs acting in opposite irections, a link pivoted to said trip leve'rfsaid linkbeing formed [with an elongated aper' hire on one end, a bell-crank pivoted to said fourth tongue, a pin in one arm ofsaid bell crank engaging in said elongated slot, an-

other pin in the other arm of said bell- I crank, a second link having'two elongated slots, said second pin engagingfinone of said elongated slots, a bell-crank pivoted to' said third tongue, said last mentioned link beino connected with. one armot said bellcranli, a third link connected with said trip I lever, said last mentioned link being formed with an elongated aperture, a pin engaged in said last mentioned aperture, .a bell-crank pivotally connected to said fourth tongue, said last mentioned bell-crank supporting said last mentionedpin, and another pin in the last mentioned bell-crank, said last men- 'tioned pin engaging the second elongated aperture of said link with the twoelongated apertures, and means connected with the l bell-crankpivoted to said third tongue for operating said whistle.

5. In aidevice of the class described. hav-' ing a whistle on top of a locomotive proper, the combination of a, bracket fastened to the bottom of said locomotive, said bracket having an aperture, a pair of tongues adjacent said aperture, a third tongue depending from said bracket, and a fourth tongue between said pair of tongues and saidthird tongue, a trip lever pivoted to said pair of tongues, means for resiliently holding said trip lever vertical, a link pivoted to said trip lever, said link being formed with an longated aperture on one end, a bell-crank pivoted to said fourth tongue, a pin, in one arm of said bell-crank engaging in said elongated slot, another pin in the other arm of said bell-crank, a second link having two elongated slots, said second pin engaging in one of said elongated slots, a bell-crank pivoted to said third tongue, said last mentioned link being connected with one arm oi said bell-crank, a third link connected with'said trip lever, said last mentioned link being formed with an elongated aperture, a pin engaged in said last mentioned aperture, a bell-crank pivotally connected to said fourth tongue, said last mentioned bell-crank supporting said last mentioned pin, and another pin in the last mentoned bell-crank, said last mentioned pin engaging the second elongated aperture of said link with the two elongated apertures, means connected with the bell-crank pivoted to said third tongue for operating said whistle, and means for releasably locking saidwhistle in operating condition upon the functioning of said trip lever, said last mentioned means comprising a rod normally urged forward by a spring, and one link near said whistle being formed with an aperture engageable by said rod.

In testimony whereof I have aflixed mv signature.

OTTO ROESLER.

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