US781301A - Signal. - Google Patents

Description

PATENTBD JAN. 31, 1905.

J. D. PRIGE.

SIGNAL.

AI'PLIOMION FILED D30. 2a, 1903.

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To all .whom t may concern.'

` a citizen of the 'United States, residing at. Aurora. in'thecounty of Kane-,and State' of Illinois,l have invented a new and useful Irn' pr'ovemet in Signals, of which the following' .l Patented January 31, 1905.

OFFICE SIGNAL-COMPANY, A CORPORA'IIIOlf'-QlLLIlOIS.-A f. 1 f

SIGNAL.

sPcIFIcA'rIoN forming pm of Letters Patent No.7e1,3o1, dated January s1, i905.

l Application leli December 28, 1903. -Seriall No. 1.86"'16. l I

Be it known that I, JONATHAN DAVID Paroli,

' is a speciiication.

This invention relates to railway signals and the like, its primary object being the con struction of asignal which shall be clearlyvisible by day orf-night and in which all the Ivs working parts ar's'hieldedfrom the weather.

A signal accordingto this invention com- .prises a movable semaphore or arm, preferably operatedl electrically and mounted in front of a screenzwhich forms a light-background for it, whetlier itbe lighted from the front,as in ordinary daylight, or from the back, as bya lamp placed behind it.. The'semaphorearm is preferably counterweighted, so that it tends al w a ys to fall to the danger position, and a'solen 'oid and core are'provided to lbring it into position to indicate line clear. All the mechanism'4 is in'closed in acasing furnished with a transparent front through which the semaphore may be seen` and a lamp or other source of light is placed in the-casing at the back for 'I use at night.

1 the drawings'.

`3,5 A is a casing, lformed, say. of

f 'Like letters indicate like parts throughout light metal and having an opening at the back, through which a lamp B'may be inserted,lthis opening being closed by a door A', to which a reflector A2 is'fastened. -Near the front of the casing is ascreen (-J, formed ot opalme glass orsmiiy lar semitransparent material, anda shaft'v I.)

' passes through the center of the screen and is' 'rotatably supported in brackets E. Fixedto the front end of the shaft D isa' semaphorearm F, and a pulle \v G is attached to its rcar end.

Behind the screen at the lower part of the casing A is a solenoid H, having a core J,

which is attached to one end of a cord J the "by Letters Patent, is A other end ofv this 0rd magi-baignade the 5e' pulley Gr. The semaphore-.arm Fris counterweighted, so that normallyffi. 6.,'whep no current'is passing through the soleniiLI-Il fit falls into the horizontal positionfillustrated in l the drawings, this position indicating .da.n .5 5 ger. A "stop(not shown in thedrawings) may be provided in any convenient place to Ineke this position a definite one When current passes through the.solenoid.H, thel core J is pulled ldown and brings the semaphore-arm 6o into the position illustrated by chain-linesinl Fig. 2, this position indicating Aline clear.y

The front of the casing. is inclosed by` a sheet K of transparent materiahand'achimney B for the lamp is provided atthfback;

Une advantage oi a signal'accordin'g to this invention is that it presents substahtially the same appearance to the driverbyjnight or` day, sov that he has not, as in 'thesordinary system, to observethe position'of a semaphore. 7o

in daylight and a colored'lightat night.

It is to be understood that although'sitis preferred to use a semitransparentor opaline screen, such as C, the invention includes any other arrangement which givesisubstantially 75`j" the same results. For instance. the screen C directly behindfthe semaphore-arm might be dispensed with and the intcriorl'ci thecasing A bel provided with a light-retlectingfsurface",l

lsuch as white enamel. The lamp could in this 8o y case preferably be furnished with an opaline\ globe, and the casingwould then itself act as a screen or background which would beeiicct?.

ive by day or night. fly/h' y Obviously the improved signal mayy e'tip 85 eratcd electrically from the signal cttblnor may be used in conjunction with any,"/ysv'iijit'able,lv I

automatic system.. i What 1 regard as new, and desire to secure 90 1. 1n a signal, the combination of a casing equi ppcd at its front portion with a semitransparent screen and provided a short distance in front of said screen with a transparent plate, a semaphore located-in the space between'said 95 screen and plate and having a shaft journaled centrally in said screen, a lamp within said casing in the rear of said'screen,l and means x0 the rear 'of said screen with an actuatingwheel, a solenoid within said easing haring flexible connection with said wheel, and n llmnp within the casing in the reni' of the screen provided with a, chimney extending through the casing` for the purpose set. forth.

JONATHAN DAVID PRICE.

In presence of- WAUER be Wixneke, W.'B. D Wms.

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