US1254223A - Low-voltage electric switch. - Google Patents

Description

Nl. GUETT.

LOW VOLTAGE ELECTRIC SWITCH. AnPLlcArloN r|LEnJuNE22.1s17.

Patented J an. 22,1918.

631ml i NONnOE GUETT, or HARTFORD, CONNECTICUT, assreNon To Tun RT aimer:

wi t t CONNECTICUT.

LOW-VOILTGE ELECTRIC SCH.

l FCTURING COMPANY, vOIF HARTFORD, CONNECTICUT, A CORFOTIION- OF ToI all 'whom zt may concern:

.. Be it known that I, MONROE Gun'rr, a

citizen of the United States, residing at Hartford, in the countyof` Hartford and -State of Connecticut, havevinvented a new and -useful Improvement in Low-Voltage Electricv Switches, of which the following is a specification.

Specication of Letters Patent. Patented Jaim., 22, llgll.

application nea rune 22, 1917.' serial No. 175,296. v

l the bottom of the receptacle. The fingers This invention `relates to an electric` switch of the ltype which is particularly designed for opening and closing .battery circuits, such, for instance, as those used on automobiles and other vehicles in the lighting, ignition and starting systems.

^ The object of the invention is to provide a very cheap, sinall and durable switch that can be readily installed and' easily manipulated for etliciently Opening and closing a low tension circuit.

As manufactured .and placed on the inarket switches of this character are quite small and' all of the views of the accompanying drawing are on an enlarged scale. Figure 1 shpws a face view of 'the switch. Fig. 2 shows la side view. Fig. `3 shows a longitudinal section on planey 3 3 on Fig. 1.

Fig. 4 shows a transverse section on line 4-.4 on Fig. 3. Fig. 5 is a view 'looking into the receptacle, the face plate, operating button and blade being removed. Fig. 6 is a view looking at the bottom of the receptacle with the terminal plates in place. Fig. 7 is a. view looking at the bottom of the rel .ceptacle with the-terminal plates and insulation removed.' Fig. 8 is a view of one of the insulating disks employed on the inside and outside ot the bottom of the receptacle- Fig. 9 is a view ot one of the .insulating washers which are placed in the openings in the bottom of the receptacle and between the insulating disks.

'llhe receptacle 1 oit the switch shown is a cup ofthin sheet metal with ears 2 extending outwardly from its open end. ln the bottom of the receptacle are two elongated pertorations '3: Washers t ot insulating material are located in the circular portions of the perforations ih the :bottom ot the receptacle, and inside and outside ot the bottoni are placed disks 5 ot insulating material. lEach of these disks has two circular openings 6 and tour angular openings 't'.

near their free ends have bosses 10 struck out so- `as to face each other. centralopenings that aline with the circular openings in the disks and notches 11 in their edges that aline with the angular 'openings in the disks. l

The terminal plates 12 are seated on the insulatingdisk on the outside of the bottom of the receptale. These plates have circular openings that aline with the circular openings in the disks and they have lugs 13 that extend through the angular-openings in the disks and into the notches in the edges of the finger feet. These parts thus assembled are' secured in place and the terminal plates and lingers are electrically connected by eyelets 4 that are passed through the circular openings in the termi nal plates, disks, Washers and feet. and are headed over at both ends. .'lhe eyelets are interiorly threaded for the reception of the binding screws that are employed for the attachment of `the ends of the circuit wires. In this simple and cheap manner the spring lingers are connected in the circuit and are insulated from the receptacle and from each other.

The feet 'have f The /ace plate 15 is stamped to the del sired outlinefrom thin sheet metal and is fastened over the open end ot the rece tacle by screws 16 which turn through t e plate into the ears that project from the' open end of the receptacle. 'llhe switch blade 17 is cut trom a thin sheet ot insulatover at both ends to hold it in'plaoe. All

ot the parts ot this simple switch are easy to manufacture and assemble' and the whole structure is very cheap and Compact.

When the button is pushed in the spring ngers are separated by the thin insulating lblade, and under these conditions the circuit is opened. While the blade is in this osition the bosses in the ends ot the spring gers enter the perforation 20 and retain e blade a ,a

lltltl ret l. .r accidental movement.

gage the eyelet 21 and thus become electrically yconnected so that the circuit will beclosed. The entry of the bosses on the fingers into the eyelet opening retains the blade in this position.

The invention claimed is;

1. An electric switch having a cup-shaped receptacle, a face plate closing the upper end of the receptacle, a piece of thin sheet insulating material extending diametrically across and movable vinward and outward within the receptacle5 said insulating piece having two perforations through itjtlatwise within the receptacle and having a stem that extends through the face plate, a.metal lic eyelet fixed in one of said perforations and extending from wide face to wide face of said insulatin piece, and a pair of conducting spring ngers having their inner -ends secured to the bottom of the receptacle and their outer ends pressing against the wide faces of said insulating piece, said ngers being provided with bosses struck out toward each other from near their outer ends which bosses are adapted to fit into the opening through the eyelet when the insulating piece is drawn outward and enter the perforations through it iatwise within the' receptacle and having an integral stem that extends throughy the slot in the face plate, a metallic eyelet fixed in one of said perforations and .extending from wide face to wide face of said insulating piece, and a pair of Y conducting spring fingers having their inner ends secured to but insulated from the bottom of the receptacle and their outer ends pressing against the wide face of lsaid insulating piece,' said ngers being provided with bosses struck out toward each other `from near their outer ends which bosses are adapted to lit into the opening througn the eyelet when the insulating piece is drawn outward and enter the unoccupied perforation when the insulating piece is moved inward. v

' MONROE GUETT.

Images