US887907A - Switch-base. - Google Patents

Description

PATENTED MAY 19, 1908.

w. R. ATKINSON.

F SWITCH BASE. APPLICATION FILED AUG. 16, 1906.

INVENTOR d 3 WilliamRAt/finsorv;

ATTORNEYS- WILLIAM R. ATKINSON. OF NEW YORK, Y.

SWITCH-BASE Specification of Letters Patent.

Patented mayie, 1908.

Application filed August 16, 1906. Serial No. 330,981.

To all whd'm'tt may concern:

Be it known that 1, WILLIAM R. ATKIN- SON, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Electrical Switch-Bases, of which the following is a specification, such as will enable those s 'illed in the art to which it appertains to make and use the same.

Mv improvement comprises a switch base block to which the ordinary electric switch box may be applied, and the object thereof 1s to provide an improved device of this class designed particularly for use in connection with molding strips to which the electric wires or conductors are secured, and especially where said molding strips are used on or in a limited space as on door frames, window frames and other wood work of t is class; a further object being to provide a switch base block which. will give a finished appearance to work of this class and insulate the switch or switch base from the wood Work.

My improvement is particularly designed for use in connection with what is known as a switch or switch of t rotary snap type, and in? described in the followlng specification of v; ich the accompanying drawing forms a part, in which:

' Figure l is a front view showing my improved switch base block, a switch connected therewith and .shewin'g also two pieces of molding with the electric wires, cables or conductors connected therewith, the said moldings being provided with a covenand part of the construction being broken away, Fig. 2 a sideview of the device as shown in Fig. 1; Fig. 3 a transverse section of my improved switch base block on the line 33 of Fig. 4, and Fig. 4 a perspective view of said block.

In the drawing forming part of this s eci fication I have shown at a two mo ding strips of the kind usually employed in work of the class herein referred to, and said molding strips are grooves 11 in whic the wires or conductors b are placed. 1 have also shown at can ordinary switch box of the two wire rotary snap tion, I provide a switch box base or block cl, one end of which is preferably semi-cir cular in form as shown at 2 and'the other end straight as shown at d and the transverse two wirerovided with longitudinal type, and in the practice of my invenwidth of the straight end (1 is exactly the same as the width of the molding strl s a. The block d is rovided with a centra circular chamber 3 in the front thereof around which is a circular groove (I and the op 0- site endportions of said block are PI'OVl edwith radially and inwardly directed projections d which extend into said chamber and are provided with screw holes d, and in practice screws 6 are employed to secure the switch box 0 to the block (1, said screws being passed into the screw holes d, and when the switch box 0 is secured to the block (2 in this manner the perimeter thereof fits in the groove d. The block (1 is also rovided in the end thereof with longitudinally-- arranged grooves or passages f which correspond with the grooves a in the molding strips andregister therewith, and in ractice the wires 6 are passed into the lock (1 through the grooves of assages f and are connected with the switc apparatus in the switch box 0 in the usual manner, the ends of one of said wires bein shown in full lines at b and the others oeing indicated in dotted lines.

it will be seen that the back of the block (1 is solid, the chamber d and the grooves or passages f being so'formed as not to pass through said back, and in this way the switch and all the parts connected therewith are insulated from the wood work to which it is or may be attached.

The block cl may be composed of porcelain or any other insulating material, and by employing my improvement for making electrical connections of the class .described the danger of fire is largely obviated, and my said improvement is .particularly applicable where a pair of feed wires come to a point where a switch is located to control a group of electric lights and the molding carrying the return wires is placed close to the feeders, and also where it is desired to permit of two to be placed side by side as is sometimes the case where the moldings have to be placed on narrow casings, window frames or other finishings, but my im rovement is not limited to any special use t iereof, and the same may be employed wherever found to be applicable. Having fully described my invention, what I claim as new and desire to secure by Letters iatent is Anelectric switch base block designed for use in connection with molding strips having lines of molding carrying electric light wires:

longitudinal grooves, said block being prowalls of said chamber being also provided at vided with a circular chamber formed in one opposite sides thereof with inwardly directed side thereof and with one straight end, the niembers arranged parallel with said grooves transverse dimensions of which are the same or passages and which serve as =-securing 5 as the transverse dimensions of the molding means.

strips said block being also provided in the straight; end portion thereof with parallel WILLIAM ATKINSON grooves or passages communicating with Witnesses:

said chamber, and adapted to register with GEORGE J STRICKER, 10 the grooves 1n the molding strips, the inner J osnrn MARTIN.

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