US1024029A - Electric-lamp hanger. - Google Patents

Description

E. E. SGHELLENGER.

ELECTRIC LAMP HANGER.

APPLICATION rum) JUNE 10,1911.

Patented Apr. 23, 1912.

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E. E; SCHELLENGER.

ELECTRIC LAMP HANGER.

APPLICATION FILED JUNE 10, 1911.

1 24,029, Patented Apr.23, 1912.

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' bodying my invention.

UNITED STATES PATENT QFFICEE.

ELECTRIC-LAMP HANGER.

To all whom 2'25 may concern Be it known that I, ELMER E. SoHnLLEN- GER, a citizen of the United States, residing at Riverside, in the county of Riverside and State of California, have invented new and useful Improvements in Electric-Lamp Hangers, of which the following is a specification.

The present invention relates to certain novel and useful improvements in hangers for electric lamps and similar devices.

In the present instance, it is my purpose to provide a form of hanger which is in the nature of an improvement on my hanger for electric lamps forming the subject-matter of my co-pending application, Ser. No. 588,991, filed October 25, 1910.

In carrying out my invention, it is my purpose to provide a hanger by means of which an electric lamp or other article may be readily and instantly raised and lowered, and held in any convenient position of adjustment.

Furthermore, I also aim to provide a hanger which will be simple in its construction, and positive and efiicient in operation.

IVith the aboverecited objects and others of a similar nature in view, the invention consists in the construction, combination and arrangement of parts, set forth in and falling within the scope of the appended claim.

In the accompanying drawings :Figure 1 is a View in side elevation of a hanger em- Fig. 2 is a longitudinal sectional view. Fig. 3 is a vertical longitudinal sectional View taken on the line 3-3 of Fig. 2 and looking in the direction of the arrows. Fig. 4: is an end view of the drum, showing the pawls for engaging the supporting shaft. Fig. 5 is a view of one of the blanks for forming the cord engaging clip. Fig. 6 is a cross sectional View, taken on the line 66 of Fig. 2, looking in the direction of the arrow and showing the clip when bent into position for engaging the cords.

Referring to the accompanying drawings in detail, the numerals 1 and 2 indicate the duplicate conductor cables or lamp cords which are connected to the lamps L. These cords are twisted at their upper and lower ends in the usual manner, and intermediate their length are separated and spread to form an approximately oval-shaped opening, the cords leading over the oval-shaped Specification of Letters Patent.

Application filed June 10,

Patented Apr. 23, 1912.

1911. Serial No. 632,449.

crane 3 formed by the cheek plat-es 4 and 5. The cords are prevented from spreading and are held to the frame through the medium of a clip 0, the blank of which is shown in Fig. 5, while Fig. 6 shows the clip bent and in position for retaining the conductors 1 and 2 and the adjusting cord hereinafter referred to. This clip is formed of a blank comprising the platelike body portion 6 having the converging sides 7*? which terminate in the spurs 88, while 9 and 10 indicate two parallel strips the upper strip 1.0 being longer than its companion 9. lVhen the clip is bent into the form shown in Fig. 6, the spurs 8'8 engage with the insulation of the conductors to grip the same while the member 9 is bent into a circular split ring, and the strip 10 bent into an approximately oval-shaped split band oppositely disposed to the ring 9 and de signed to embrace the conductors. In actual practice, I employ two of these strips, one at the top and one at the bottom of the frame around which the conductors extend, and said clips are preferably oppositely disposed, as will be seen from the drawings.

Stationarily mounted in the frame 3 and extending between the cheek plates 1 and 5 is a shaft 11 upon which is mounted a drum 12, such drum being loose upon the shaft and is formed of the two side plates 13-13 which converge at 14.-14 and are then eX- tended outward as at 15, or at the periphery of the drum, these outwardly extending flanges 15 forming a groove 16 around the periphery of the drum for the reception of the adjusting cables or cords 17 and 18, the two plates forming the drum being secured in any desired manner, such as by bolts 19. l/Vithin the drum is mounted a vertically arranged circular coiled spring 20, one end of which is secured to the shaft 11 at 22 while the other or outer end of the spring is connected at 23, to the disk 24: loose upon the shaft and having a hub 25 through which said shaft passes. The numeral 26 designates a second vertically arranged coiled spring arranged on the opposite side of the disk from the spring 20 this circular coil spring 26 being connected at 27 to the hub of the disk and at 28 to the adjacent face of the drum so that from the arrangement of the springs and the connections just described, it will be seen that a. complete connection is made between the stationary shaft 11 and the drum.

The shaft 11 is provided near one end with oppositely disposed recesses or notches and 30 designed. to be engaged by the shouldered ends 31 and of the dogs 33 and pivoted to the adjacent outer face of the drum, the construction being similar to that used in connection with the ordinary shade roller. The adjusting cords 17 and 18 are adapted to be coiled circumferentially on the drum, the cord 17 being ttastened near the center of the drum at one end and is coiled toward one of the side flanges of the drum, while the other or lower cord 18 is also fastened to the drum and coiled toward the opposite flange, the tail end of the cord 17 being secured to a trip or supporting ring 33 connected to the conductors, while the tail end of the rope 18 is connected to the lamp as at 34.

From the above description, taken in con nection with the accompanying drawings, the construction and operation of my invention will. be readily apparent. Assuming that the major portion of the suspending cords are uncoiled from the drum, and the lamp in a lowered position, if it be desired to raise the lamp the latter is pulled downward a short distance to effect the disengagement between one of the dogs and the shaft 1%, and this being done the downward pull on the lamp is reduced sufficiently to permit the circular coil spring to rotate the disk and drum. When the speed of rotation is sufficiently high the engaging ends of the dogs will swing outward by centrifugal force. As the lamp approaches the required height, the pull on the same is increased to overcome the action of the spring, whereupon the dogs will be permitted to drop back and engage with the notches in the shaft so that further movement of the rotating drum and disk willv be prevented and the lamp held in adjusted position.

It will be noted that I have provided 21 simple, convenient and ellicient term of hanger which may be readily and easily operated to hold the lamp in any position of adjustment.

I wish it to be understood that the springs employed in connection with the drum may be constructed of a flat steel band or strip, or may be formed of round wire oil? the proper stiffness and strength and furthermore, any number of strings may be employed and mounted one beside the other to increase the range of extension or contraction of the lamp cord.

I claim A device of the class described. comprising a frame adapted to be positioned between and having cheek pieces to engage the conductors, the intermediate portions of said cheek pieces being spaced apart and said cheek pieces being provided with means to engage the conductors and being also provided with non-circular openings, a shaft connecting the cheek pieces and having non-circular ends secured in the openings thereof, a hollow drum mounted on the shaft and comprising a pair of members secured together and having out-turned peripheral flanges forming a periphe al groove, coil springs spaced apart, disposed in the respective members of the drum, connected thereto at their outer ends and connected at their inner ends to the shaft, a disk between the said springs and secured to the shaft, suspending cords attached. to and wound in the groove on the drum, and dogs pivoted to the drum and adapted to engage with oppositely disposed recesses in the shaft.

In testimony whereof I affix my signature in presence of two witnesses.

ELMER E. SCI-IELLENGER.

IVit-nesses S. It. MCDOUGALL, C. C. Penn.

Copies of this patent Commissioner of Patents,

Washington, D. C.

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