US810536A - Turning switch with lighted handle for electric lines. - Google Patents

Description

PATENTED JAN. 28, 1906.

H. HOLZER. TURNING SWITCH WITH LIGHTED HANDLE FOR ELECTRIC LINES.

APPLICATION FILED APR.10,1905.

'tion of the switch at night.

HANS HOLZER, OF FRANKFQltT-UN-THlE-MATN, GERMANY.

TURNiNG SWITCH WITH LUGHTEQ HANELE ELEQTRHG LHNES.

Specification of Letters Fats-int.-

Patented Jan. 1906.

Application filed April 10, 1905. Serial No. 254,882.

T0 (ZZZ whom it may concern:

Be it known that I, Hans Honznn, a subject of the German Emperor, and a resident of Frankfort-on-the-Main, Germany, have invented certain new and useiul Improvements in Turning Switches with Lighted Handles for Electric Lines, of which the following is a specification.

The invention relates to improvements in electric switches of that class wherein the switch member or body of the switch is provided with illuminating means to enable the operator to locate the switch in the dark.

it is the object of this invention to provide a switch whereby an incandescent light placed upon or adjacent thereto may serve to indicate the position of the switch in a dark room, the said lamp being connected with a ligh*- ing or other circuit through the switch in such a manneras to be simultaneously cut out when the circuit is out in or to be entirely out out when the lighting-circuit is cut out, the latter feature being to avoid lighting the lamp during the day-time.

in the drawings, Figure l is a sectional view of a switch embodying the main features of my invention. Fig. 2 is a plan view thereof, and Figs. 3 and i are diagrammatic views.

There is provided a switch connected by main contacts e and f through branches g and h with the main line. An auxiliary contact C is provided, which connects by a branch 0 through branch h with side of the line, there being inserted in said branch suitable resist-- ance W and a plug d. The main lamp n is shown in the diagrammatic views inserted in branch h to represent the li hting system which the switch controls, an a small lamp 1) is shown electrically connected with contact e, the latter serving to indicate the loca- The lamp 6 is connected with the line by connection I) through contact e. The switch member A, which, as shown, is of the sprin type, is pivotally mounted upon the body of the switch in a manner hereinafter more fully described;

The switch-spring A is so proportioned with respect to its point of throw or, as shown, its pivotal mounting as to 'forin relatively long and short wiping or contact ends a and c adapted to engage either of the main contacts cf. The auxiliary contact C is located a sullicient distance from the pivotal center of the springA to be out of the path of said short end a and in the path of said long end a.-

From the foregoing it will be seen that when it is desired to turn on the lamp n and shunt out the lamp b the switch A will be turned in the position shown in Fig. 3, wherein the contact ends a and a engage the contacts e and f. When it is desired to cut out the lamp n and light the lamp l), the switch A is turned to the position shown in l i 4, wherein contact end a engages the auxi ialy contact C, cutting out the main circuit and closin circuit through contact C, spring A, lamp 0, connection 6, and back to the main line. in this position lamp 6 is in circuit and serves to guide any one to find the switch at night. During the daytime when the light it is turned off and it is not necessary to have the light l) in circuit the switch A is rotated to bring the end 0&2 nearest the auxiliary contact (3, thereby cutting out both lamps l) and n, or if it is not desired to use the lamp 5 the plug d may be drawn, cutting said lamp permanently out of service.

The sectional view, Fig. 1, shows the position of the switch member A as illustrated in Fig. 3, while the plan view in Fig. 2 illustrates the position shown in Fig. l.

Next describing the construction of the switch as a whole, the same consists of a hollow base I, of porcelain or like insulating material, on which the contacts (3, e, and f are mounted, the contacts 6 and f being held in place by screws 6 and f, which support resistance-wires V said screws passing through insulating-washers w and the base i to the contacts e and A block 1' is mounted upon the base I and provided with a stem i, projecting therethrough and anchored in place by a nut "P. A nut 6 of suitable insulating material, is secured to the blocki by threaded engagement and forms a bearing for the switch-spring Said spring is provided with a centrally-disposed sleeve a in which the socket of the lamp 1) is mounted, there being formed on said lamp a shank b which extends through said nut i and into the block 11. A collar 'i, of suitable insulating material, rigidly secured to the sleeve a, is provided on its periphery with screwthreads,to which the switch-key S is secured,

the latter comprising a centrally-disposed casing, of insulating material, into which the lamp projects, a transparent top 8, through which the rays of light pass, and suitable wings 3. An outer casing i secured to the base I, incloses the operative parts of the switch and is provided with an aperture,

through which the lcey 8 projects. When the switch is in the position shown in Fig. 4, (referring also to Fig. 2,) the current passes from contact e by branch 6 to block i, spindle 5 through lamp 6, spring A, to'contact C, resistance VI, backto the line, the said. resistance being connected with contact (3 in any desirable manner, which connection is clearly shown diagrammatically in Figs. 2, 3, and 4;. In Fig. 2 the branch 0 is shown connecting the resistance /V and contact C. Une of the wings s, as shown in Fig. 2, is provided with arrow to indicate the position of the longer contact end a, and the outer casing i is provided with numbers 0, 1, 2, 8, enabling the operator to determine the position in which he is turning the switch.

The device of my invention provides a means of avoiding the diiliculties common in locating a s itch in a darlr room by a device which is e and comnact capable of being substituted "for ordinary switch erases without alteration of any kind. The branch circuit 0 and the resistance l/V may be contained in the switch-body, if desired. 2 5

' I claim An electric switch comprising main contacts connected with the line, a pivotallymounted switch member for closing circuit through said contacts, said member having L relatively long and short contact ends, a lens; for said switch member connected thercthrough with one side or the line, and an aux iliar contact connected with the other side, said auxiliary contact being out of the path 5 of said. short end and in the path of the long end of said switch member.

In testimony whereof .l have hereunto set my hand in presence of two witnesses.

LLRUDER

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