US1770210A - Entrance switch and service box - Google Patents

Description

July 8,- 1930.

J., C. LEWIS ENTRANCE SWITCH AND SERVICE BOX File J ly 1925 2 Sheets-Sheet hm an )9 E an July 8, 1930.

J. C. LEWIS ENTRANCE SWITCH AND SERVICE BOX Filed July 18, 1925 2 Sheets-Sheet 2 Patented July 8, 1930 we STATES PATENT hhhhh wane JOSEPH G. LEWIS, OF CANTON, OHIO, ASSIGNOR 'IG CHARLES KEPLINGE R, BE-

CEIVER OF THE AIvEEBICAN ELECTRIC SVJITCI-I CORPORA-ZION, 0F. Iv'IINEItVA, OHIO,

A CORPORATION or DELA ARE ENTRANCE SWITCH Applicationfiled July 13,

,This invention relates to improvements in entrance or service box construction'such as is used at the entrance of an electric line' into a building, and more particularly to the 'trated in the accompanying "drawings, in

which,

Figure 1 is a fragmentary sectional view of a switch box showing the switch in open position;

Fig. 2, a similar view showing the switch in closed position; Fig. 3, a detail perspective view of the link which connects the switch handle to the switch blade; r

Fig. 4:, a view similar to Figs. 1 and 2 showa ing the switch folded within the box for ship- Fig. 5, a section taken Fig. 2; and

Fig. 6, a section through the switch box showing the pivoted latchbar in folded position for shipping.

Similar numerals refer to throughout the drawings.

The box 1 may be formed as on the line 55,

similar parts of sheet metal I of a size to accommodate the switch block 2 and one or more fuse blocks. Each of these blocks is formed of suitable insulation ma- 7 ing to the number of circuits to be wired from the box, are mounted in spaced relation upon the insulating box 2 and wires may be led from each of the binding posts to one side of each circuit, and the binding posts may Ann snnvron BOX- 1935. Serial No. 44;,609.

be electrically connected as by a suitable bus bar with. a line wire; The other side of each house circuit maybe led through the usual meter and back to the'necessary fuses housed within the switchbox.

A bifurcated upright-.31 is mounted upon the bottom of the box adjacent to the switch block 2, and the switch handle 32, which is V of, insulation material, is pivoted thereto as by a pin 33. i c This handle has the grooved arcuate shoulders 34 upon each side to receive the depend.

ing curved flanges 35 formed at the sides of the slot 36 in the hinged lid 37 of the entrance box. I

The reduced peripheral p ortion 36 of the switch handle'extends through the slot 36 andis provided with astem 32 for manuaL ly operating the same. I The innerside of the handle 32 is recessed asat 38, one end of the L shaped link 39 being pivotally connected therein as by the pinJZLQZ The link 39 may be formed of a single sheet of metal bent upon itself as at 11, the op-' posite end of said link being pivotally connected to the switch blade 15 as by the pin 42, the foldedportion 41 of the link forming a stop to limit the opening movement of the switch blade, as shown in Fig. 1, and

the inner edge 43 of the handle contacting with the adjacent edge of the link when the blade'is' in closed position, as shown in Fig. 2, thus relieving the link and switch blade from strain.

As shown in Figs. 1, 2 and 5, the arcuate outer edge portion 36 of the handle entirely closes the slot 36 in the door at all times, thus preventing access to the interior of the box through this slot.

When it is desired to pack the box for shipping, in order to economize space, the pivot pin 33 of the switch handle is removed 7 and the handle folded into the position shown in Fig. 4, into the bifurcated bracket 31, and

therefor in the handle.

The latch bar 45' for the lid 37' is pivoted the pin 33 replaced in the aperture provided r atits lower end asat 46 to an adjacent side wall of the box, the apertured upper end slot in the lid 37 when the box is in locked position. WVhen it is desired to pack the box for shipping this latch bar is swung downward upon its pivot to permit the lid 37 to be closed as shown in Fig. 6.

The pivoted switch blade, pivoted operating handle, and connecting link disclosed and described but not claimed herein has been made the subject matter of my copending application for entrance switches filed May 2, 1927, Serial No. 188,169, which is a division of this application. The service box lid and latch bar disclosed, described but not claimed herein has been made the subject matter of my copending application for latches for service boxes, filed May 2, 1927, Serial No. 188,170, which is a division of this application.

I claim:

1. A box provided with a slot having inturned flanges at its side edges, a switch blade within the box, and an operating handle positively connected with the blade having a grooved portion for engagement with said flanges.

2. A box provided with a slot having inturned flanges at its side edges, a switch blade within the box, and an operating handle positively connected with the blade having a shouldered grooved portion for engagement with said flanges.

3. A box provided with a slot having inturned flanges at its side edges, a switch blade within the box, and an operating handle positively connected with the blade having a shouldered arcuate grooved portion for engagement with said flanges.

In testimony that I claim the above, I have hereunto subscribed my name.

JOSEPH C. LEWVIS.

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