US921108A - Magnetic electric-light holder. - Google Patents

Description

D. J. HAUSS.

MAGNETIC ELECTRIC LIGHT HOLDER.

APPLICATION FILED I 'EBJO, 1908.

Patented May 11, 1909.

auvanl'oz atmwzq C E K M f H 16n/ DAVlD J. HAUSS, O1" AURORA, INDIANA.

MAGNETIC ELECTRIC-LIGHT HOLDER.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed February 20, 1908. Serial No. 416,844.

To all whom it may concern:

Be it known that I, DAVID J. .HAUSS, a citizen of the United States, residing at Aurora, in the county of Dcarborn and State of Indiana, have invented certain new and useful Improvements in' Magnetic Electric Light Holders, of which the following is a specification.

My invention relates to improvements in magnetic sockets, or holders for electrielights.

One of its objects is to provide a magnetic holder which will retain its position when current is cut ofl' from the electric light, and which is sufliciently economical in consumption of electricity to permit its being held in the desired position, or positions, for long periods of time.

Another object is to provide improved arrangement of parts and means of assembling whereby the parts are firmly secured together, and are at the same time readily separable for repairs or other purpose.

Another object is to provide means for assembling or separating the parts without disturbing or injuring the magnetic coil.

Another object is to provide an arrangement of parts enabling the application thereof to electric lights and parts thereof of st andard form and size.

It further consists in certain details of form, combination and arrangement, all of which will be more fully set forth in the description of the accompanying drawings, in which:

Figure l is a side elevation of my improved holder in position for use. Fig. 2 is an enlarged section through the holder on line r-o of Fig. Fig. 3 is a section through the same on line ra1 of Fig. 2. Fig. 4 is an end view of the threaded socket to receive the light. Fig. 5 is an end view of the orcelain head and lamp connections wit 1 the threaded socket detached. Fig. 6 is a perspective view of the assembling collar. Fig. 7 is a perspective view of the housing for the porcelain head and connections. Fig. 8 illustrates the holder employed to support an are light.

My improved holder is designed to hold an electric light by means of magnetic attraction to any desired position upon any iron object, such as a piece of machinery, or structural iron, and to permit it to be readily shifted as ret uired from one place to another.

in the accompanying drawings, representing one form of my improved mechanism A represents an ordinary incandescent lamp socket, A represents an extension plug, a, a

flexible conductor or light cord of any desired To the opposite end of the cord a is length. attached and electrically connected my improved magnetic holder or socket. The magnet comprises a central iron core, B, the ends of which are preferably reduced slightl in diameter at b b. At the end of 6 1s tight-l fitted a thick iron washer or disk, C. The t isk C is perforated to receive two insulated and threaded metallic sleeves, d, d. The exterior of core B, and the inner face of disk 0 are then covered with insulating material and a coil of insulated wire, D, slipped over the core B, the terminals of the coil D being secured to the sleeves d, d respectively. A non-ma metic disk, C, is then tightly fitted to the em b, of core, B, being insulated from coil D on itsinner face. The opposite side of disk C being insulated a. metal connecting bar, E, is united to sleeve (1 by a screw, (1 A head, F, of insulating material, preferably porcelain, is then fitted over the connecting bar E, which enters a re cess, f, provided therefor. A screw, f, serves to unite a connecting bar, G, on the exterior of the head F with the bar E, into which screw f is threaded, thereby forming one of the attachments to hold head F in place. The bar G has a binding screw, g, bv means of which one strand of the lamp cor a, is electrically connected thereto. A connecting bar, H, is attached to head F by means of a screw, h, threaded into one arm, h, of bar H, while screw it passes through the other arm, h of bar H to clamp bar II to head F, the'screw It being threaded into sleeve (1 serving thereby to hold head F in place upon disk 0.

I I represents a threaded metallic shell or socket into which the base i of an incandescent light is adapted to be screwed. The shell I is attached to head F by means of ears, i, i which are locked between head F and the arms h, h of bar H by screws h, 72.

In order to provide a bipolar ma net and a housing and protection for the coi D I provide an iron tubular shell, K, which is recessed on the interior to providea shoulder, 76, against which one face of disk C seats, and is recessed at the o posite end on the ex terior at k to receive t e tubular housing, L. When the parts of the magnet are in the position Fig. 2 the magnetic circuit is comp eted by the core B, the disk C housing K and the iron object, J, to which the holder is to be atwithout detaching the older.

tached by magnetic attraction. This arrangement permits of the use of a minimum current consumption to secure the requisite magnetic attraction to retain the holder in place, and with the coil D connected in shunt circuit with the electric light, the holder will retain its position when the current through the light is cut out, which may be done by artially unscrewing the incandescent light in the socket I, or by a separate switch, N, as

indicated in Fig. 8, and the current consumption through coil D even for a considerable period will be inconsiderable compared with the current consumption through the light.

A collar, M, preferably ofinsulating material, threaded on the interior to engage the exterior of the shell I serves to hold shell I and housing L centrally one within the other, and by the pressure of collar m upon the end of housing L to draw the head F and disk C, core B and coil D within the housings K, L, seating the disk C" firmly 'a ainst shoulder 7c and housing L against shou der 7c, and binding all the parts into a compact unit. It will be noted that in order to obtain access to any part of the device it is'only necessary to unscrew the collar M, whereupon the other parts may be separated. In order to provide a passage for'the conductors a, through the housing, and to protect the conductors from injury I provide a slot Z in the housing L in which is seated a collar L of insulating material, which collar is provided with an ex ternal annular groove 1 which roove engages the edges of the slot Z to retain collar L in place.

I preferabl connect the coil D in shunt ,circuit with t e electric light, thus avoiding liability of the holder bein released from its position by a break in the amp, filament, or similar cause, and also permitting the current through the lam to be. interrupted As shown in Fig. 2 one lead wire is connected to bar G the face 9 of which makes direct contact with the central contact of an incandescent bulb, while current is supplied by screw f bar E, screw 11 and collar (1, to one terminal of coil D. The other lead wire is connected by screw it to bar H which through shell I contacts with the threaded terminal of the light bulb, while screw h and collar (1 serve to make connection with the opposite terminal of the coil D. A connection P attached at one end by eye p to housing K and at the opposite end to cord a, serves to prevent heav strains on the contacts at screws 9, h whic might otherwise break these connections.

The mechanism herein illustrated and described is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is;

1. In a mechanism of the character indicatcd a core of magnetic material having a non-magnctic disk attached to one end, and a disk of magnetic material attached at the opposite end, a coil of insulated wire encircling said core between said disks, a tubular housing of magnetic material recessed on the interior to receive said disks, and having a shoulder against which said disk of magnetic material seats, a head of insulating material attached to said disk of magnetic material, a tubular socket attached to said head, said socket being internally threaded to receive and hold the electric light, and externally threaded to en age a threaded collar, and a collar threade upon the exterior of said socket and adapted to lock said core, disks and coil within said housing.

2. In a mechanism of the character indicated a core of magnetic material having a non-magnetic disk attached to one end, and a disk of magnetic material attached at the o posite end, a coil of insulated wire encirciing said core between said disks, a tubular housing of magnetic material recessed on the interior to receive said disks, and having a shoulder against which said disk of magnetic material seats, a head of insulating material attached to said disk of magnetic material, a tubular socket attached to said head, said socket being internally threaded to receive and hold the electric light, a housing for said head seating at one end upon a shoulder on said housin of magnetic material, and a collar threade upon the exterior of said socket and engaging the op osite end of said housing for the head to raw said head and core within said housings, and to lock the parts in the assembled position.

3. In a mechanism of the character indicated, a core ofmagnetic material, a disk of ma netic material attached to one end of said core, a coil of insulated wire encirclin said core with its terminals passing througii an insulated passage in said disk, a tubular housing of magnetic material adapted to house and protect said coil and havin an internal shoulder to seat against said isk,

threaded plug to sup ort an electric light,

and a collar threadec upon the exterior of said socket, and serving to lock said core, coil and disk within said housing.

4. In a mechanism of the character indicated, an electro magnet, an insulated head attached to said magnet, a threaded socket attached to said head, and adapted to support an electric light, contact bars carried by said head, a housing for said head and socket, said housing being provided with a slot at one side, and a collar of insulating material forming a passage through the said housing for the lead wires, said collar having an annular external groove registering with the slot in terior to receive said disksand to'form a' shoulder against which said disk of magnetic material seats, an externally threaded membar attached to said core, an internally threaded collar engaging said threaded member to lock said core and disks Within said 1?:

housing of magnetic material, and means for detachably connecting an electric light to the magnetic holder.

In testimony whereof I have aflixed my signature in presence of two Witnesses.

' DAVID J. HAUSS.

Witnesses: a

C. W. MILES, A. MoCoRMAoK.

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