US1704990A - Hanger bracket for trolley-wire guards - Google Patents

Description

March l2, 1929. M. PElRcr: 1,704,990

HANGER BRACKET FOR TROLLEY WIRE GUARDS Filed June s, 1927 i 1 1 g l w 5 Q g i 11| ei il l ii Il 5i Il il 1l H i? '1 e l\ l:

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i :l n ATTORNEYS Patented Mar. 12, 1929.

UNITED sraras fi v1,704,990

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MEAD PEIRCE, or EAST PALESTINE, oI-IIo, AssIsNoa or oNE-EOU'ETII To FRANKLIN I. FRANCIS AND ONE-FOURTH To DAVID .I DAvrs, Bern or rALEsTINE, oI-rio.

HANGER BRACKET Eon TnoiiLEY-wrnn GuAaD-s.

Application led June 3,

rlhis invention relates to hanger brackets for trolley wire guards and aims among other objects to provide an .improved bracket for supporting guard rails or boards in mines.

In the accompanying drawing, v

Fig. 1 is a side elevation showing a series of brackets embodying my invention applied to a mine trolley wire;

Fig. 2 is atop plan view of the brackets shown in Fig. 1;

Fig. 3 is a central sectional view of one of the brackets shown on an enlarged scale;

Fig. 4 is a perspective view of the bracket shown in Fig. 3; I

Fig. 4a is a perspective view of one of the guard board flanges; shown in Figs. 3 and 4; and

Fig. 5 is a sectional viewy of a bracket showing a modified form of guard holding attachment for my bracket.

Referring particularly to the drawing and to the embodiment of my invention illustrated in Figs. 1 to 4, I have there shown my brackets applied to trolley wire insulators 10 which are anchored in a mine ceiling or roof 11. However', they may be secured at intervals between the insulators, as indicated at 12.

Herein, the brackets are shown as being made of sheet metal so-that they may easily be made by cutting and stamping operations. In the present instance, they are substantially channel-sliaped having downwardly depending flanges lintegral with a web 14 which has an opening 15 adapted to receive a lag screw or expansion bolt 16 to which` the web is clamped between washers 17. Y

To supportI safety guard'rails or boards 18 at the sides of the trolley wire as required by law, I have shown the lower ends ofthe flanges 13 as being bent outwardly at right angles to provide ledges 19 and then upwardly tol provide board retaining flanges 2O so that the boards 18 may be inserted edgewise into the trough-shaped grooves produced by these bends.

To secure the boards against accidental displacement, I have shown struck-,up projections 21 formed by producing angular` slits in the ledge portions and bending the sharp ends at right angles to the sheet. These projections are preferably formed so that they may be driven into the edges of the boards or rails with their planes extend- `Moreover, the cost of the the invention be used conjointly,

1927.' Serial No. 196,388.

I n natural grain of the wood.

Referring toy Figs. 3 and 4, I have also shown means to hold the upper edges of the boards or rails against lateraldisplacement. To avoid the necessity for and expense of securing the boards by bolts', I provide flanged clips 22 shaped, the ends of one flange presenting reversely bent ears 23 adapted to engage the opposite parallel edges of the flanges 13. In Figure 4, the flanges'l near their lower ends have notches 24 to receive the ears so that the clips may be put on very quickly. These clips have struck-out nailing projections 25 adapted to be driven across the grain of the boards to hold them securely against longitudinal displacement.

In Fig. 5, I have shown a modified formV ofthe clips comprising a Z-shaped piece of sheet metal or Z bar 26. adapted to besecured by bolts 27 inserted through vertical slots 28 in the flanges 18. It is not necessaryto provide the nailing projections when this type of clip is used because the clips may be firmly secured in place.

From the foregoing description, it will be seenfthat my improved brackets can be made very cheaply; that safety guards or boards may be applied'to them without having to drill bolt holes and insert bolts. labor for installing ingy lengthwise of the'Orooves or along the them is greatly reduced.

Obviously the present invention is notrestricted to the particular embodiment thereof herein shown and described. Moreover, it is not Aindispensable that all the features of since they may be employed advantageously in various combinations and subcombinations.

What I claim is zv 1. A guard hanger bracket for mine trolley wires comprising, iin combination, a channel shaped member having flanges adapted to straddle the trolley wire and a` web portion to be rigidlysecured relative to roof; means integral with the lower ends of the flanges to hold the guards; and clip means cooperating with the flanges abovek their ends to hold the guards against displacement.

2. A guard hanger bracket for mine trolley wires comprising a channel-shaped member having' outwardly and upwardly bent ends providing trough-shaped grooves to reshown as being channelp ceive the guards; and struck-out nailing pro- Jections 'formed thereon.

3. A guard hanger bracket for miner-trolley wirescompiising a channel-shaped ineinf ber having outwardly and upwardly bent ends providing trough-shaped grooves to receive the guards; and flanged clips slidable on the flanges of the Channel-shaped mein bei' cooperating with the grooves to seeure the guards inV place.

4. A guard hangeil bracket for mine troiley Wires comprising incoinbination, a substantialiy channel-shaped member having angularly bent ends to receive the lower edges of guardfboaids; flanged clips presenting reversely bent ears adapted to engage the opposite edges of the channel anges said channel -Hanges having notches to `perinit the clips to be inserted and guided there on; and struck-,outprojections on said clips and said angularly bent portions to secure theboai'ds against accidental displacement.

yIn testimony, that claim the foregoing as my ovvn7 I have hereto aiiixed iny signature.

MEAD PEIRCE. l

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