US570452A

US570452A - Necticut

Info

Publication number: US570452A
Authority: US
Publication date: 1896-11-03
Anticipated expiration: 1913-11-03

Description

(No Kodel.) 2 Sheets-8h eet 1. J. CHRISTIANSEN 85 R W. PITTMAN.

BRACKET FOR PENDANT ELECTRIC LIGHT GLOBBS. No. 570

,452. PatentedNov. 3, 1896.'

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No. 570,452. Patented Nov. 3, 1896.

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. NITED' STATES PATENT FFIQE.

JOHN OHRISTIANSEN AND REINHAR-T \V. PITTMAN, OF HARTFORD, CON- NECTICUT; SAID CHRISTIANSEN ASSIGNOR TO SAID PITTMAN.

BRACKET FOR PENDENT ELECTRIC-LIGHT GLOBES.

SPECIFICATION forming part of Letters Patent No. 570,452, dated November 3, 1896.

Application filed January 5, 1895- To ctZZ whom it may concern:

Be it known that we, JOHN CHRISTIANSEN and REINHART W. PITTMIAN, citizens of the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented a new and useful Bracket for Pendent Electric-Light Globes, of which the following is a specification.

This invention relates to lamp brackets or supports, and is more especially designated as a gravity-support, and is more particularly adapted for suspending or supporting incandescent electric lamps and the object of the invention is to provide a supporting or suspension device simple and durable in construction, neat in appearance, and simple in operation, and by meansof which the lamp can be adjusted into any desired position within certain determinate limits.

A further object of the invention is to provide a bracket of this class adapted to be suspended from a ceiling or other place whereby the lamp can be adjusted into any desired lateral position relatively to its supporting or suspension means without changing the position of such supporting means, and whereby it can also be adjusted in a circular horizontal path relatively to its supporting means without twisting or turning such supporting means.

In the drawings accompanying and forming part of this specification, Figure 1 is a side elevation of this improved bracket suspended from a ceiling and showing the lamp-supporting member or rod adjusted to its extreme extended position relatively to the weight and showing the weight adjusted in position to equalize the weight of and maintain the lamp in proper horizontal position, and also showing such weight partly in section. Fig. 2 is a similar view to Fig. 1, but showing the weight supported by an incandescent-lamp cord,the lamp-supporting member or rod carried by a sleeve secured to the weight, and also showing said lamp-supporting member in a different position from that shown in Fig. 1 and the weight adjusted to equalize the position of the lamp. Fig. 3 is a transverse sectional view of the weight, taken in line a a, Fig. 1. Fig. 4 is a side view of the coupling detached. Fig. 5 is a view Serial No. 533,972. (No model.)

descent-light cord and the lamp-supporting member in a different position from that shown in Fig. 6. Fig. 8 is an enlarged view of the coupling shown in Figs. 6 and 7 3; and Fig. 9 is a transverse sectional view thereof, taken in line b b, Fig. 8.

Similar characters of reference indicate corresponding parts in the different figures.

By means of this gravity suspension-bracket an incandescent-electric-light lamp or other lamp can be suspended from a ceiling or wall or other suitable place by a perpendicular or pend ulous suspension or supporting member, and adjusted and held in any desired lateral position relatively to said suspension mem ber by means of a suspended weight, and also adjusted in a circular horizontal path without turning or changing the position of such suspension member.

In the preferred form thereof herein shown and described this improved lamp-bracket comprises a suitable pendulous suspension or supporting member preferably consisting of a wire or cord 12, of any desired thickness or shape, adapted for attachment by any suitable means to any suitable support, such, for instance, as a ceiling of a room or other place, but in practice this suspension member is preferably about one-eighth of an. inch in diameter, and is preferably flexible, whereby it can be easily moved aboutif desired, but, although preferably flexible, the lamp can be turned in a circular horizontal direction, by means of the coupling hereinafter set forth, without twisting or turning the suspension member or wire, so that the lamp carried by the bracket will remain in its adjusted position without any vibrating or swinging motion. This suspension member 12 may consist either of the incandescent-light cord or wire (see Figs. 2 and 7) or of a separate cord or wire, (see Figs. 1 and 6,) as desired.

Secured to the lower end of the suspension member or -wire 12, by any suitable means, such as by a coupling, is a weight 13, pref crably constructed to exceed the weight of the lamp or globe when the same is attached to the bracket, whereby the lamp can be adj usted into position at a relatively remote distance therefrom and the weight of the lamp equalized and by slight adjustments of the weight permit the lamp to be adjusted into various positions transversely of said weight and the suspension member. This weight, which may be of any desired shape or form, in its preferred form herein shown and described is preferably longitudinally and centrally bored, (Figs. 1 and 6,) whereby it is adapted to receive a lamp-holding member of any desired construction, and herein shown preferably consisting of a rod 14, which is longitudinally adjustable relatively to said weight and also transversely thereof and of the suspension member 12. This lamp-holding member may be clamped in its adjusted position by means of a suitable clamping device, such as a thumb-screw 15, carried by the weight, and is preferably provided at or near one end thereof with suitable means for supporting amincandescent electric lamp, or other lamp, and which means is herein shown consisting of spring clamping-arms 35, adapted to spring around the metal holder of an incandescent-electric-light lamp when this particular form of light device is used with this bracket.

In one form of this improved lam p-support-' ing bracket the weight has pivotally secured thereto an arm 16, and as one means of securing this arm in position relatively to the weight said arm is shown provided with a bifurcated end 17, adapted to receive an ear or projection 18, preferably carried by the main part of the weight, and to which the arm is pivotally secured by means of a suitable clamping device, such as a thumb-screw 19, extending through the bifurcated end 17 of the arm and the ear or projection 18 of the weight. It will be obvious that to construet the weight with a bifurcated extension adapted to receive the arm is clearly within the scope of our invention.

Any suitable means for adjustably securin g the suspension member 12 and the weight 13 in operative position relative to each other may be used, but in the preferred form thereof herein shown and described, however, a coupling is provided, and which in its preferred form comprises a hook 20, adapted to receive the lower end of the suspension member 12, which may be secured thereto in any suitable way, and a swivel member or link 21, secured to said hook in any suitable way, and which is herein shown having its lower portion forming a pivot or journal 22, adapted to receive the upper end of the arm 16, which may be secured thereto in any suitable way for adjustment, but in the form shown the arm terminates in a hook 23, adapted to extend around said journal.

In the use of this described form ,of bracket, the same having been assembled and secured by means of the suspension member to a coiling of a room or any other suitable place, preferably adjacent to the point of attachment of the conductor-cord of the electriclight lamp, if a separate suspension member is used, the lamp is then placed in position in the holding member and said holding member adjusted into any desired position transversely of the weight and suspension member and secured in such position by means of the clamping device 15. The clamping device 19 is then actuated to permit the weight to be adjusted relatively to the arm into the necessary position to counterbalance or equalize the weight of the lamp, and said weight is then clamped in its adjusted position by means of said clamping device. For instance, with the form of lamp shown, (see Fig. 1,) if a shade was added to the lamp, (see dotted lines,) it would be necessary, in order to have the weight equalize this additional weight of the lamp and shade, to adjust said weight relatively to the arm 16 laterally of the suspension member or farther to the right, and thus by the adjustment of the weight relatively to the suspension member increase its amount of supporting power, an d whereby the lamp would be brought into a horizontal position. If, however, the lamp was moved toward its suspension member the distance shown, forin stance, in Fig. 2, it would be necessary to adjust the weight to bring the same toward the suspension member, to thereby decrease the supporting power of the weight. The lamp can then be turned by means of the swivel into any desired circular horizontal position without twisting or turning the suspension member out of its normal position.

lVhen it is desired to adjust the lamp laterally of the weight into any desired position, the lamp-holdin g member 14:is adjusted transversely of the weight and clamped in such position by the thumb-screw 15, and the weight adjusted by means of its arm 16 and clamping-screw 15 to the position necessary to counterbalance or equalize the weight of the lamp in its adjusted position.

According to another form of this improved lamp-bracket the pendulous or hanging suspension member and holding member are the same, but the weight 13 is preferably provided with an arm 25, integrally connected therewith, and which preferably extends sidewise or laterallythereof and is provided with suitable means whereby said weight can be adjusted laterally of the suspension member. This means in its preferred form comprises a laterally-extending arm orbar 26, having any desired number of perforations 27 for the purpose hereinafter set forth. This bar is secured to the upper portion of the arm 25 by means of a swivel of any suitable and desired construct-ion. In the form thereof shown the bar 26 has a suitable base 28, through which a fastening device, such as a screw 29, is adapted to extend and project into the upper end of the arm 25, thereby forming a swivel connection whereby the weight can turn in a circular horizontal direction relatively to the bar. In this construction the weight is secured by means of the bar 26 to the suspension member, preferably by means of a suitable coupling preferably in the nature of a double hook. 30 of any desired construction.

In the use of thisform of bracket the holding member carrying the lamp is adjusted into any desired longitudinal position relatively to and transversely of the weight, and secured in such position by means of the clamping device 15. The weight is then adj usted by means of its perforated arm or bar 26 by placing the hook 30 in the particular perforation which will enable the weight to equalize the Weight of the lamp and properly horizontally balance the same. For instance, if the lamp-holding member is in its extreme extended position (see Fig. 6) the hook will be placed in the perforation c at the extreme inner end of the bar, but if such hook was left in one of the intermediate perforations, as d,the lamp and holding member would assume the position shown in dotted lines. If the holding member, however, is moved transversely of the weight, (see Fig. 7,) to thereby adjust the lamp, the hook will be placed in one of the intermediate perforations, as 6, whereby the weight will be in position to properly equalize the weight of the lamp in its adjusted position. By means of this construction of gravity-bracket the lamp will always be held in perfectly horizontal position and can be adjusted into any desired transverse position relatively to the suspension member in proportion to the length of the rod, and also adjusted into any desired circular horizontal position relatively to the suspension member as a center and remain in such position without twisting or changing the position of said suspension member.

In the construction shown in Figs. 6 to 9, however, when it is desired to turn the lamp in a circular horizontal direction from one position to another the perforated bar is released from the hook and the bar and the weight turned together and the hook replaced in the perforation, the swivel in this construction being used to permit the lamp to be adjusted into position somewhat sidewise of the perfo rated bar and the suspension member without the weight losing its counterbalancing force relatively to the lamp. By means of this construction of bracket embodying the laterally movable weight relatively to the pendulous or hanging suspension member the holding member can be supported in perfectly horizontal position with the weight at onelend and the lamp at the other end thereof, or adjusted into any desired position transversely of the weight and the holding member, without the use of any means of support secured to said holding member intermediate of said weight and the lamp, and whereby different sizes and weights of lamps can be more readily and easily supported and adjusted into various positions than could be the case if the weight was secured in position in alinement with the suspension member at all times.

Ve claim as our invention-- 1. In a device of the class specified, the combination of a pendulous suspension member;

a weight adjustably secured thereto; and a holding member transversely adjustable substantially its entire length relatively to said weight and suspension member, and adapted to carry a lamp adjacent to one end thereof.

2. In a device of the class specified, the combination of a pendulous suspension member; a weight adjustably secured thereto; and a holding member transversely adj ustable relatively to said weight and suspension member and adapted to carry a lamp; and a clamping device carried by said weight for clamping the holding member in its adjusted position.

3. In a device of the class specified, the combination of a pendulous suspension member; a coupling secured thereto; a weight adj ustably secured to said coupling, whereby said weight is adapted for movement in a circular path; and a holding member transversely adjustablesubstantially its entire length relatively to said weight and suspension member, and adapted to carry a lamp.

4. In a device of the class specified, the combination of a suspension member; a weight; means for ad justably securing said weight to the lower end of said suspension member and embodying means, whereby it is adapted for circular movement relatively thereto; and a rod transversely adjustable its entire length in said weight and adapted to support a lamp adjacent to one end thereof.

5. In a device of the class specified, the combination of a suspension member; a coupling secured thereto and embodying a swivel; a weight adj ustably secured to said swivel and movable in a circular path therewith; and a holding member transversely adjustable substantiallyits entire length relatively to said weight and suspension member, and adjustable in a circular path with said weight, without exerting torsional movement of the suspension member. 6. In adevice of the class specified, the combination of a weight adapted to receive a horizontally-adjustable sliding rod adapted to carry a lamp; a flexible suspension-wire, and a coupling, embodying a swivel, connecting said flexible suspension-wire and weight, whereby the rod supported by said weight can be adjusted in lateral position and whereby the weight and rod can be adjusted in a circular horizontal path relatively to said flexible suspensionwire.

7. A device of the class specified, consisting of a pendulous suspension member; a weight having an upwarclly-extending arm joined to said weight, and secured to said pendulous suspension member, said weight having a lateral adjustment relatively to said suspension member; and a lamp-holding member transversely adjustable substantially its entire length relatively to said weight.

8. In a device of the class specified, the combination of a suspension member; a weight having an arm adjustably secured thereto and also to said suspension member, whereby said Weight can be adj usted into position directly below or laterally of the suspension member; and a holding member supported for transverse adjustment relatively to said weight.

9. In a device of the class specified, the combination of a suspension member; a weight secured thereto for adjustment directly below or laterally of said suspension member, and means carried by said weight and adapted to support a lamp.

10. In a device of the class specified, the combination of a suspension member; a weight secured thereto for adjustment directly below or laterally of the suspension member and for movement in a circular horizontal path relatively thereto; and means carried by said weight and adapted to support a lamp.

11. In a device of the class specified, the combination of asuspension member; acoupling secured thereto; a weight, having an arm adjustably secured to said weight and also adjnstably secured to said coupling whereby said weight can be adjusted into position directly below or laterally of the suspension member; and a lamp-holding member supported by said weight for adjustment.

12. In a device of the class specified, the combination of asuspension member; a coupling secured thereto and embodying a swivel;

a weight having an adjustable arm and supported by said swivel for movement in a circular horizontal path relatively to said suspension member; and a lamp-holding member longitudinally adjustable transversely of said weight.

13. In a lam p-holding device, the combination of a pendulous suspension member; a weight having an ear or projection; an arm having a bifurcated lower end adj ustablysecured to said projection; a clamping device for clamping said arm and weight rigidly in position relatively to each other, said arm having its upper end adjustably secured to said suspension member, wherebysaid weight is adjustable relatively to said suspension member; and a lamp-holding member transversely adjustable relatively to said weight, and having means at its outer end for the attachment of a lamp.

14:. In a device of the class specified, the combination of a pendulous suspension member; a weight adapted to support a lamp, and adjustably connected to said pendulous suspension member for adjustment directly below or laterally of said suspension member.

15. In a lamp-holding device, the combination of a suspension member comprising an incandescent-electrie-lamp conducting-cord a weight adjustably secured thereto, and a holding member supported by said weight and adapted to carry the lamp secured to said incandescent-lamp cord.

JOHN OI-IRISTIANSEN. REINHART IV. PITTMAN. Witnesses E. S. CHAMPION, E. O. WHITNEY.