US1570597A - Lighting fixture - Google Patents

Description

, F. c. DE REAMEF'.

LIGHTING FIXTURE Filed Nov. 11, 1922 Inventor Frank C DeReamer His Attorny Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

FRANK C. DE REA'MER, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO GENERAL ELEC- TRIC COMPANY, A CORPORATION OF NEW YORK.

LIGHTING FIXTURE.

Application filed November 11, 1922.

To (all whom it may concern:

Be it known that I, FRANK C. DE REAMER, a citizen of the United States, residing at Bridgeport, in the county of Fairfield, State of Connecticut, have invented certain new and useful Improvements in Lighting Fixtures, of which the following is a specification.

The present invention relates to detachable fixtures of the type in which certain of the parts are permanently wired either in the side wall or ceiling of a room which is to be lighted while the other parts which are also permanently wired are arranged to be quickly detached from said wall or ceiling parts. The detachable parts are provided with a canopy which carries the lamp supporting bracket.

In mounting and taking down canopies of this character there is liability of marring or scratching the finish around the permanently installed parts, as for example, the wall paper, and the object of the present invention is to provide a simple, effective means for preventing such injury.

For a consideration of what I believe to be novel and my invention, attention is dilected to the accompanying description and the claims appended thereto.

In the drawing which is illustrative of my invention, Fig. 1 is a view in elevation of a canopy which is partly broken away to show the inside parts; Fig. 2 is a view in side elevation partially broken away, showing the position of the canopy just beforebeing finally seated; Fig. 3 is a similar view but showing the canopy in its seated position; Fig. 4 is a perspective View of the attachment plug and the member which carries it and also supports the canopy, and Fig. 5 is a front elevation of a finishing or surface plate.

Referring to Fig. 2, 5 indicates the side wall or ceiling, designated hereafter as a wall, and 6 a metal outlet box suitably supported therein. Located in the box is a re oeptacle 7 made of insulating material which is of usual construction and contains the necessary contacts and binding posts for the supply circuit Wires. Resting on the surface of the wall 5 is a face or cover plate 8 of any suitable configuration which contains three slots that are arranged to receive the three load supporting hooks 9, 10 and 11, Fig. 4: formed on the supporting Serial NO. 660,206.

box-like member 12. The plate 8 is covered by a finishing plate 13, usually of brass, which is provided with slots 9*, 10 and 11*, that register with those in the face plate and through which the supporting hooks are free to pass. Preferably, but not necessarily, the receptacle which is made of in sulating material, is secured by screws to the face plate so that the electrical contacts therein will be properly aligned to receive the cooperating blades of the attachment plug. The receptacle is provided with a projection 7 which extends outwardly and terminates flush with the finishing plate 13 and contains slots 7" of suitable size and shape to receive the blades of the attachment plug.

The member 12 comprises a metallic box having a front wall, two sides and two ends, the two sides and lower end being provided with said hooks 9, 10 and 11. Inside of the box and capable of limited movement therein, is a rectangular attachment plug 1 1 having two contact blades 15 which are wired to the socket on the lamp supporting bracket and are adapted to engage stationary contacts in the receptacle and complete the electrical circuit. The attachment plug is retained in the box member 12 by means of a pin 1 1 and a screw 14 located at diagonally opposite corners. On the lower end of the box is a spring-pressed locking device 16 which fits into the lower slot after the hook 11 is in place and prevents the accidental displacement thereof but which is not material to an understanding of the present invention.

Riveted or otherwise firmly securedto the box is a holder 17 for the canopy 18. This holder is slightly resilient in order to hold the canopy against the wall and also to compensate for inaccuracies in the setting of the parts or in the construction of the can cpy or both. In the form shown the holder comprises a U-shaped piece, the legs of which straddle the box and at their lower ends are riveted or otherwise secured to the sides of the box. On the bridge piece of said U-shaped piece is formed a tongue 19, the outer end of which is bent backwardly and away from the finishing plate to act as a guide in slipping the canopy in place. On the back of the canopy and secured at its ends thereto isa horizontal support or strap 20 which when the canopy is mounted in This arrangement comprises a means which positively engages the strap and pushes'it and the canopy outwardly and away from the wall until the final position of the canopy is reached. As here illustrated it comprises a U-shaped member 21, the legs of which straddle the box and are either secured at their lower ends directly to the box or indirectly to it through. the legs of the holder 17 to which'the legs of the member are riveted, the latter being the simpler arrangement. Backward movement of the member 21 or that toward the finishing plate is limited by the stops 22 which are formed integral with the box. On the bridge part of the member 21 is a tongue 23 the outer end of which is beveled or inclined toward the brass finishing plate 13. By the arrangement described the two tongues 19 and 23 form a V-shaped guide and both act as guiding means to direct the strap on the canopy into its proper place. At the bottom of the inclined portion of the tongue 23 is formed a small projection 24L which performs three functions. First, it pushes the strap and'the canopy outwardly away from the wall as the latter is moved downwardly by a suflicient amount to prevent the edges of the canopy from rubbing on the wall paper surrounding the face or finishing plate; second, it acts as a friction lock to prevent the strap from being accidentally dislodged from place by an upward thrust, and third, it acts to push the strap and canopy away from the wall while the latter is being removed by an upward movement. Fig. 2 illustrates the position of the parts as the canopy is being moved into place, and Fig. 3 illustrates the canopy after it has been seated. From this latter figure it will be seen that the projection 24 is located just above the strap and that the legs of the resilient holder are now vertical instead of being slightly bent or inclined outwardly as in Fig. 2. The canopy may be of any suitable size and shape, and secured thereto is the bracket 25, the outer end of which carries a lamp socket, not shown.

As will be seen the canopy, both in mounting it and taking it down is held away from desire-tohave it understood that the apparatus shown is 'Oflly'illuStIfltlVG and that the invention may be carried out by other means. \Vhat I claim asnew and desire to secure by Letters Patent of the United States, is 1. In a device of the character described, the combination of a metallic member having sup porting means, a holder for a removable canopy comprising a U-shaped resilient piece, the legs of which straddle the member and are secured to the sides thereof, and a second U-shaped piece, the legs of which also straddle the member and are secured thereto and which is provided with means for pressing a canopy support outwardly from a "all thereby flexing the holder until approximately the. seating positions of the can 'opy' and its support are reached.

2. In a device of the character described, the combination of a metallic member adapted to receive an attachment plug and having supporting means, a pair of U-shaped pieces, the legs of which straddle the member and are secured to the sides thereof, diverging tongues on both of said pieces which act as a guide for a canopy support, one of said pieces being resilient while the other causes said canopy support to deflect the resilient member outwardly as said support is being moved to its final position.

.3. In a dev'ce of the character described, the combination,. of a metallic member adapted to receive an attachment plug and having supporting means, a pair of U-' shaped pieces, the'legs of which straddle the member and are secured to the sides thereof, one of said pieces being fixed and the other resilient and movable at one end, diverging tongues on both of said pieces which act as a guide for a canopy support, one of said tongues havinga projection near its base which engages said support and presses it and the U-shaped resilient piece outwardly as said support is being moved to its final position.

In witness whereof, I have hereunto set my hand this 8th day of November, 1922.

FRANK C. DE KRAMER.

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