US1440419A

US1440419A - Trolley-wire guard

Info

Publication number: US1440419A
Application number: US562177A
Authority: US
Inventors: Stitt David
Original assignee: JAMES SNEDDON
Current assignee: JAMES SNEDDON
Priority date: 1922-05-19
Filing date: 1922-05-19
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

D. STITT.

Jan. 2, 1923.

TROLLEY WIPE GUARD F| LED MAY i9. 1922.

INVENTOR 'DQVid tiff WITNESSES Patented DAVID sierra, or i/ion'enncrown, WEST "cinemas, .assrenoa or onnnnitr T0 James snnnnon, or noneenrown, vIaernr-n.

TEOLLEY-VTIEE GUARD.

Application filed 'liay 19, 1922. Serial No. 562,177.

To all 1071 cm it may concern.

Be it known that 1, DAVID S'rrr'n a citizen of the llnited States, residing-at Morgan- .town, in the county of ldononrgalia and State 01 lVest Vir inia, have invented a new and useful Improvement in -'l1"olley-l l ire Gu ards, of which the following is a specification.

This invention relates to safety devices and has for its object the provision of a novel guard for trolley wires in mines and other places which will ope ate to prevent personsor animals from coming in contact with the trolley wire.

It is well known that miners and also animals working in mines and similar places are electrocuted by accidentally touching; the trolley wire which supplies current to the mining locomotives, and this danger is al ways present and aggravated by the fact that the trolley wire is very low. Some States have recognized the gravity of this condition and have enacted laws requiring that some form oi protection be furnished. It is with these facts in View that l have designed the present device.

An important and more specific object is the provision of a guard which normally extends below the trolley wire to prevent a workman from coming in contact with the wire itself, the constuuction of the guard being such that it will automatically swing out of the way to permit passage of the trolley pole and head and subsequently return by gravity to normal position.

Another object is the provision of a guard of this character which is supported from the ordinary trolley hangers, an advantageous feature of this arrangement being that the guard may be manufactured and sold as a complete and separate entity adapted for attachment to the existing; structure.

To the attainment of the foregoing and other objects and advantages, my invention consists in the details of construction a, arrangement to be hereinafter more f described and claimed, and illustrated in accompanying drawings. in which:

Figure 1 is a side elevation of my device applied to a trolley line, the in ure showing one of the guard sections as s rung to per init passage of the trolley pole and head;

Figure 2fis a plan view of the structure shown in Figure 15 supporting arms 15 at lateral. wed;

Figure 23 is cross sectional view showing the mounting; of the guards; and

Figure 4iis a detail section on the line of Figure liet efiing inorLp the drawit (Hes a storey wire together by bolts 12 passing; throue'h lateral 'ensions 13.

.he guard er preferably consists of a plurality or substantially ll-shaped sec- ?2 it. which are preferably curved trans- :scly as shown. and which may be conot weed or fiber or other suitable Each section. 14.- has secured thereto at opposite ends. a iir at arms 15, which have their upper ends 16 extended at an acute angle and pivoted on the bolts 12 of adjacent brackets 10, these ends 16 beinsr disposed betweenthe extensions section 1 is tlnis-siuuvorted from tire hang;- ers, one at ach end and e ch hanger support the adjacent ends of two successive guard sections, it being); noted that the successive sections are arranged with their opposite sides of the trolley.

lln order to provide for automatic rnove ment of the .euard sections into non-ohstructiuu position to perm t the trolley head E tn pass a t tions lelwith i engaged by the ins: action resulting in swinging; cial y awa from their f the sect.

netmal posit'c n the olley Wire. It ction as to on wire exposed. all the sections p i u uerson or :rolley wire so t- L animal will sti-"Ie the aid sections instead of the trolley wire itself. and be thus protected against electrocution. The guard 1 1. J eel-av; the s does not in any way interfere with the passage of the trolley, as the sections automatically swing out of the way, one after another successively when the trolley head engages against the inclined ends 17. Figures 1, 2 and 3 show the normal position of parts, and also show one section as swung out of the way to permit the trolley head to pass by.

From the foregoing description and a study of the drawings, it will be apparent that I have thus provided a simply constructed and consequently inexpensive guard device, which may be manufactured and sold as a separate entity adapted to be mounted upon already existing trolley hangers without necessitating any alterations in their structure, the operation of installing the device being simple and being capable of accomplishment without employing special tools.

lVhile I hcve shown and described one embodiment of the invention which will operate with great efliciency, it is to be understood that the specific details are merely an exemplification of the possibilities, and that I reserve the right to make such changes in the form, construction and ar rangement of parts as will not be a departure from the salient features of the invention or the scope of the sub ioined claims.

What is claimed'iszl. A trolley guard comprising a plurality of guard sections pivotally mounted and depending below a trolley wire gravitationally, the ends of the sections having means for exterting a lateral wedging action to swing the sections outof obstructing relation'when said ends are engagedby the trolley head.

2. In a trolley wire guard, the combination with an overhead conductor supported by hangers, of a plurality off guard sections pivotally supported from said. hangers and depending gravitationally below the conduetor to form a protection therefor, the ends of said sections having inclined parts engage/able by the trolley head whereby to swing the sections out of obstructing relation to the passage thereof along the trolley.

3. A trolley wire guard, the combination with. the trolley and its supporting hangers, of brackets detachably mounted upon the hangers, guard sections pivotally suspended from said brackets and normally extending below the trolley wire to form a protector therefor, the ends of said sections being 111* clined for exerting a lateral cam action l'or swinging the sections out of obstructing relation when engaged by the trolley head.

l. A guard. for trolley wires comprising brackets secured upon the hangers of the trolley wire, a plurality of guard sections suspended from said brackets and normally disposed immediately below the trolley wire, the ends of the sections being diagonal with respect to the trolley wire, whereby to exert a lateral pressure for swinging the sections when engaged by the trolley head.

5. A trolley guard, the combination wit-h a trolley Wire and its hangers, of brackets detachably clamped upon said hangers, arms pivoted upon said brackets and suspended therefrom, and U-shaped guard sections carried by said arms and having means for exerting a wedging action when engaged by the trolley head to efiec-t lateral swinging of the arms to bring the sections into non-obstructing relation to the wire.

6. A trolley guard, the combination with the trolley and its supporting hangers, of brackets detachably mounted upon the l1angers,'U-sl1ag 3ed guard sections pivotally suspended from said brackets and normally extending below the trolley wire to form a protector therefor, the ends of said sections being inclined for exerting a lateral wedging actlon for swinging the sections out of obstructing relation when engaged by the.

trolley head, the successive sections having their confronting inclined ends parallel and slightly spaced apart.

7. A trolley guard, the combination with the trolley and its supporting hangers, of brackets mounted upon the hangers, down- \vardly extending arms pivotally mounted on the brackets and carrying guard sections having means engageabl'e by the trolley head, the arms of the successive sections extending from opposite sides of the brackets, whereby successive sections will be.

swung in opposite directions during the passage of the trolley, pole head alongthe trolley.

8. A guard for trolley wires, comprising brackets adapted to be clamped upon thehangers for the trolley wire, arms'pivoted upon said brackets, and guard sections carried, by said arms and normally depending below the trolley wire, the ends of the sec-- tions having means engagedby the trolley i 'head during the passage thereof along the trolley wire and beingformed to exert lateral pressure resulting 1n the swinging of the sections into non-obstructing relation during such passage.

9. A. guard. for trolley wires, comprising sectional brackets adapted to be clamped upon the trolley hangers in embracing relation thereto, and guard sections carrying arms pivoted. between. the sections of the.,

brackets and normally depending below the trolley wire, the ends of the sections being diagonal for effectinglateral swinging oftl e sections when said ends are engaged by the trolley head,the successive sections being ar-v ranged to swing in opposite directions.

In testlmony that I claim the foregoing as m own, I have hereto afiixed my signature.

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