US749138A - Adjustable electrolier - Google Patents

Description

PATBNTED JAN 5, 71904. G. ANDERSEN. ADJUSTABLE ELEGTROLIER.

APPLICATION FILED MAR. 27. 1902.

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PATENTED JAN. 5, 1904. F G. ANDERSEN.

ADJUSTABLE ELEUTROLIER.

APPLICATION FILED MAR. 27. 1902.

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Patented January 5, 1904.

PATENT OFFICE.

GEORGE ANDERSEN, OF DENVER, COLORADO.

ADJUSTABLE ELECTROLIER.

SPECIFICATION forming part of Letters Patent No. 749,138, dated January 5, 1904. Application filed March 27,1902. Serial No. 100,169. (No model.)

To all whom it may concern: .1

Be it known that I, GEORG ANDERSEN, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Adjustable Electroliers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in adjustable electroliers, my object being to provide a device of this class which shall be comparatively simple in construction, economical in cost,reliable, durable, and efficient in use; and to these ends the invention consists of the features, arrangements, and combinations hereinafter described and claimed,

all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a central vertical section taken through the top casing and the depending telescoping tubes of my adjustable electrolier. Fig. 2 is a section taken through the mechanism inclosed by the casing and viewed at right angles to Fig. 1. Fig. 3 is a top view of the same. Fig. 4 is a perspective view, partly in section, illustrating the upper extremity of the telescoping tube. Fig. 5 is a fragmentary detail view, partly in section, illustrating the spring-actuated electrodes used in connection with the operating devices. Fig. 6 is a side elevation,shown on a smaller scale,illustrating the electrolier. Fig. 7 is a similar view of a modified form of device. Fig. 8 isasection taken through the casing inclosing the operating parts of the construction shown in Fig. 7.

Fig. 9 is a section taken through the operat ing parts and viewed at right angles to Fig.

8. Fig. 10 is a top view of the construction shown in Figs. 8 and 9.

The same reference characters indicate the same parts in all the views.

Referring first to Figs. 1 to 6, inclusive, let the numeral 5 designate a top plate secured to the ceiling or other suitable support of a room by screws 6 or other suitable fastening devices passed through the plate from the bottom. To the plate 5 is secured a depending yoke or frame 7, consisting of a top ring 7 and depending arms 7, curved interiorly at the bottom,where they are integrally joined .to an exteriorly-threaded tubular part 7 The yoke is inclosed by a casing 8, applied to the top plate and having its lower extremity open to allow the part 7 to protrude below. This casing is held in place by a depending tube 9, whose upper portion is interiorly threaded and screwed upon the part 7 adjacent the casing 8. The upper extremity of the tube is provided with a bead 9 forming a sort of shoulder, which engages the casing for the purpose stated.

A revoluble spindle 10 is supported by two of theoppositely-disposed yoke-arms 7". One extremity of this spindle is journaled directly in one of said arms, while the other extremity of the spindle is journaled in a sleeve or hollow spindle 12, revoluble in the other yoke-arm. Near one extremity of the spindle 10 is made fast a ratchet-disk 13, engaged by a spring-actuated dog 14, mounted on a yoke-arm 7. Loosely mounted on the spindle 10 adjacent the ratchet 13 is a leverratchet, whereby the lever-arm may be made to'turn the spindle for a purpose hereinafter explained. Mounted on and made fast to the sleeve 12 is a ratchet-disk 17, whose yoke-arm adjacent the disk. Loosely mounted on the sleeve 12 is a lever-arm 19, carrying pose hereinafter apparent.

drum 21, whose body portion is com posed of insulating material. This drum is interiorly recessed to receive a spring 22, which is coiled around the spindle 12, to which one extremity of the spring is secured, while its opposite extremity is made fast to the drum, as shownat 22 The tension of this spring is regulated by manipulating the lever 19, whereby the spindle 12 is turned in the proper direction to perform its function. Mounted on one side of the drum 21 are two separated metal contact-rings 23 and .24.

a dog 20, also engaging the ratchet, whereby the sleeve may be manipulated for a pur- Loosely mounted on the spindle 12 is a.

arm 15, carrying a dog 16, engaging the teeth are engaged by a dog 18, mounted on a An insulating-block is secured to one of the yoke-arms on the side of the drum 21 adjacent the contact-rings. In this block are inserted two hollow-binding posts 26 and 2'1, each of which contains a coil spring 28. These springs bear against electrodes 29 and 30, which yieldingly engage the metal rings 23 and 24, respectively, forming perfect electrical contact. To the binding posts 26 and 27 lead the circuit- wires 31 and 32, respectively. These wires lead from metal plates 33 and 34, respectively, which plates are electrically connected by the fuse- wires 35 and 36 with metal plates 37 and 38, which are respectively connected with the main wires (not shown) of the external circuit. The wires connected with the lamps 39 (see Fig. 6) lead from metal contacts 40 and 41, which are secured to the rings 23 and 24, respectively. These lamp-wires after passing through a portion of the insulating-drum are coiled together, as shown at 42, and wound around the drum 21, which is provided with a groove in its periphery for the purpose. After leaving the drum the coil 42 is carried downwardly, engaging a guidepulley 43, and passes thence to the tubular part 7 of the yoke and the depending tube 9.

Loosely mounted on the spindle 10 adjacent the drum 21 is a drum 44, which is interiorly recessed to receive a coil-spring 45, one extremity of which is made fast to the drum, as shown at 46, while the other extremity is secured to the spindle 10, as shown at 47. By manipulating the lever 15, which isloosely mounted on the head of the drum, the latter may be turned to regulate the tension of the spring, as described.

Secured at one extremity to the drum 44 is a cable 48, which is coiled around the drum in agroove formed on its periphery for the purpose. This cable extends below the drum, engaging a guide-pulley 49, and passes thence downwardly through the tubular part 7 of the yoke and through the tube 8 to a cylindrical plug 50, in which the cableis anchored. This plug is provided with a recess which is open at the bottom. The cable 48 is knotted and drawn through this recess, the knot engaging its upper extremity. The opening above the recess 50 is only large enough to allow the cable to pass without the knot. The plug 50 is screwed into the top of the tube 51, which telescopes in the tube 9. This tube 51 supports the branches 52, carrying the lamps 39 of. the electrolier.

The plug 50 is bored transversely, cutting the vertical recess 50*, forming a space in which a dog 53 is located. This dog is normally pressed outwardly byaspring 54, seated in the closed end of the recess, causing the dog to engage a toothed rack 54, whose upper extremity is secured to the tube 9 by screws 56. The plug 50 is grooved on one side. as shown at 50, to make room for the rack 54. This groove intersects the recess in which the dog 53 is located.

wire coil 42 as the electrolier is raised.

Projecting upwardly into the recess 50 of the plug is a rod 55, whose-upper extremity is beveled, as shown at 55, and projects into an opening formed in the dog 53 and engages a pin 53*, fast on the dog. This rod is connected with the plug by a pin 56, which is located in a slot 57 of the plug, which slot allows the rod suliicient vertical movement in the plug to unlock the latter from the toothed rack to permit the rod 55 to move up and down freely in the tube 9, according as it may be necessary to raise and lower the electrolier proper. The upward movement of the rod 55 disengages the dog 53 from the rack by virtue of the engagement of the rods beveled face with the pin 53 of the dog.

Coiled around the rod 55, below the plug 50, is a spring 58,whose extremity engages the plug, while its lower extremity bears against a stop 59, made fast on the rod. This spring normally holds the rod at its downward limit of movement.

The individual wires of the coil 42 pass through separate openings 50 formed in the plug 50, and are again united below the plug and continued downward through the tube 51, at whose lower extremity they are again separated and carried outwardly through the branches 52 of the electrolier in the wellknown manner.

From the foregoing description the manner of completing the circuit through the operating devices of the electrolier will be readily understood. Before the casing 8 is applied the tension of the springs 22 and 45 is regulated by manipulating the levers 19 and 15,

as heretofore explained. This tension must be suflicient to cause the drum 21 to turn readily to take up the slack of the circuit- At the same time this spring should not be of suflicient tension to unduly resist the downward movement of the chandelier. The tension of the spring 45 should be such as to support the electrolier, or the tension of the spring and the weight of the electrolier should be balanced so that a slight downward pull or upward thrust only will be necessary in adjusting the electrolier vertically.

In the form of construction shown in Figs. 8 and 9 the top plate 60 is secured to the ceiling of the room or other suitable support by screws 61, which also pass through the ring 62 of a yoke 62, provided with depending arms 62, which are provided with an angle about midway of'their length. These arms are bent inwardly at their lower extremities, where they merge into an integral tubular part 62 into the lower extremity of which is screwed an insulating-plug 63, having a head engaging a spring-washer 64, which engages from below and holds in place the casing 65, whose upper extremity engages the plate 60. This casing incloses the operating parts of the electrolier. Upon the part 62 of the yoke is mounted an insulating guide-pulley 66. At the angle'of the yokearm 62 is mounted and made fast a spindle 67, whose extremities engage openings formed in the said arms. By reason of the angle of the yoke-arms the axis of the spindle is thrown farther to one side of the axis of the guide-pulley 66 than would be the case if the arms were straight, thus reducing the friction between the guidepulley and the coil 68, formed by the wires of the internal circuit. This coil of wires is wound around a roller 69, loosely mounted on the spindle 67 and interiorly recessed to receive a coil-spring 70, one extremity of which is attached to the spindle,while the other extremity is attached to the roller which operates a shade of the ordinary curtain-roller, being provided with two dogs 71, mounted on each extremity and cooperating with the spindle, which is provided with notches for the purpose,as will be readily understood. This roller is composed of insulating material,and on opposite sides of its central groove are located metal contact-plates 72, which are respectively engaged by spring-actuated electrodes 73, mounted in insulating-blocks 74, secured to the yoke. The electrodes 7 3 are mounted substantially in the same manner as the electrodes 29. (Shown in Fig. 5.) Also mounted on the blocks 74 are two spring-contacts 75, which engage metal pieces 76, connected with the main wires (not shown) of the external circuit. The springs 76 are electrically connected with the spring-actuated electrodes 73 by the fuse-wires 77. The wires of the internal circuit comprising the coil 68 are respectively connected with the plates 72, as shown at 78. The electric lamp 79 is attached to the lower extremity of the coil 68. It is evident that this lamp may be raised and lowered at pleasure by means of a simple pull in the same manner as a window-shade attached to the ordinary spring-roller.

Having thus described my invention, what I claim is- 1. In an adjustable electrolier, the combination with a suitable support and the circuitwires, of a spring held device revolubly mounted thereon and around which the wires of the internal circuit are wound, contactrings mounted on said device, and insulated from each other, an insulating-block,hollow binding-posts mounted on said block and to which the Wires of the external circuit lead, electrodes slidably mounted in the hollow binding-posts and engaging the respective contact-rings,'and coil-springs located in said binding-posts and engaging the electrodes to hold them against the contact-rings.

2. In an adjustable electrolier, the combination with the circuit-wires of a top plate secured to the ceiling or other stationary support, a yoke detachably connected with said plate and having arms extending downwardly and curved inwardly, terminating in a tubular part, a spring-held device revolubly mounted in said yoke and around which the wires of the internal circuit are wound, contact-rings mounted on said device and insulated from each other, with which rings the wires of the internal circuit are connected, an insulating-block, hollow binding-posts mounted on said block and to which the wires of the external circuit lead, electrodes slidably mounted in the hollow binding-posts and engaging the respective contact-rings, and coil-springs located in the binding-posts and engaging the electrodes to hold them against the rings.

3. In an adjustable electrolier, the combination with the circuit-wires, of a top plate secured to a suitable stationary support, a yoke detachably connected with said support and having arms extending downwardly and curved inwardly terminating in a tubular part, a spring-held device revolubly mounted in said yoke and around which the wires of the internal circuit are wound, contact-rings mounted on said device and insulated from each other, with which rings the wires of the internal circuit are connected, an insulatingblock, hollow binding-posts mounted on said block and to which the wires of the external circuit lead, electrodes slidably mounted in the hollow binding-posts and engaging the respective contact-rings, and coil-springs located in the binding-posts and engaging the electrodes to hold them against the rings.

4. In an adjustable electrolier, the combination with a suitable support, and the wires of an electrical circuit, of a spindle journaled in said support, a drum loose on the spindle, a spring coiled around thespindle, having one extremity attached thereto, the other extremity being attached to the drum, a ratchet mounted on the spindle, a drum mounted on the support and engaging said ratchet to prevent the drum from unwinding in response to the action of the spring, a hand-lever mounted adjacent the ratchet, a dog carried by the lever and engaging the ratchet to turn the spindle and regulate the tension of the spring, the wires of the internal circuit being wound around the drum, rings mounted on the drum and insulated from each other, hollow binding-posts mounted on the yoke, insulated therefrom and from each other, electrodes slidably mounted in the said posts and respectively engaging the contact-rings, and coil-springs located in the hollow binding-posts and acting on the electrodes to hold them in operative relation with the contact-rings.

5. In an adjustable electrolier, the combination with a suitable support and the wires of an electrical circuit, of aspindle journaled in said support, a drumloose on the spindle, a spring coiled around the spindle, having one extremity attached thereto, the other extremity being attached to the drum, a ratchet mounted upon the spindle, a dog mounted on the support and engaging said ratchet to prevent the drum from unwinding in response to the action of the spring, a handlever mounted adjacent the ratchet, a dog carried by the lever and engaging the ratchet to turn the spindle and regulate the tension of the spring, the wires of the internal circuit being wound around the drum, hollow binding-posts suitably mounted and insulated from each other, electrodes slidably mounted in said binding-posts and engaging the respective contact-rings of the drum, and springs located in the hollow binding-posts and acting on the electrodes to hold the latter in operative relation with the contactrings of the drum.

, 6. The combination with a suitable support and the wires of an electrical circuit, of a spindle mounted in said support, a drum loose on said spindle, a spring coiled around the spindle, one extremity being attached to the drum and the other extremity to the spindle, means for regulating the tension of the spring, contact-rings mounted on the drum and insulated from each other, the wires of the internal circuit being wound on the drum and electrically connected with the rings, hollow binding-posts mounted on the support, and insulated from each other, electrodes slidably mounted in the said posts and engaging the respective contact-rings, and springs located in the hollow binding-posts and acting on the electrodes to hold the latter in operative relation with the said rings.

7. In an adjustable electrolier, the combination with a suitable support and the wires of an electrical circuit, of a spring-held drum revolubly mounted on said support, contactrings mounted on the drum and insulated from each other, the wires of the internal circuit being wound on the drum, a suitable electrical connection between the said rings and the wires of the internal circuit, hollow binding-posts suitably mounted on the support and insulated from each other, electrodes movably mounted in said posts and engaging the respective contact-rings, and springs located in the hollow posts and acting on the electrodes to hold the latter in operative engagement with the said rings.

8. The com bination with asuitable support and the wires of an electrical circuit, of a spring-held drum revolubly mounted on the support, the wires of the internal circuit being wound on the drum, a suitable electrical connection between said contacts and the wires of the internal circuit, hollow bindingposts suitably mounted on the support and insulated from each other, electrodes movably mounted in said binding-posts and engaging the respective contact rings, and

springs located in the said posts and actingon the electrodes to hold the latter in operative relation with the contact-rings.

9. In an adjustable electrolier, the combination with a suitable support, a depending tube attached to said support, and the wires of an electrical circuit, another tube arranged to telescope in the first-named tube, the electrolier proper being attached to the telescoping tube, an adjustable connection between the two tubes whereby the telescoping tube may be raised andlowered at will and locked in any desired position, a spring-held drum mounted on the support and on which the wires of the internal circuit are arranged to wind,a suitable electrical connection between the wires of the internal and external circuits, the wires of the internal circuit leading to the lamps of the electrolier, another spring-held drum mounted on the support, and a cable attached to said last-named drum and connected with the telescoping tube.

10. In an adjustable electrolier, the combination with a suitable support, a depending tube attached thereto, and the wires of an electrical circuit, of two spring-held drums mounted on the support, a tube telescoping in the depending tube, the electrolier proper being attached to the telescoping tube, and a cable connected with the drum at one extremity, and with the telescoping tube at the opposite extremity, the wires of the internal circuit being attached to the other drum and connected with the lamps of the electrolier, substantially as described.

11. In an adjustable electrolier, the combination with a suitable support, and the wires of an electrical circuit, of two drums mounted on the supportindependently of each other, a stationary depending tube, another tube telescoping in the stationary tube, the electrolier proper being mounted on the telescoping tube, a toothed rack attached to the stationary tube and extending into the telescoping tube, a spring-held (log mounted on the telescoping tube and engaging said rack to support the telescoping tube in the adjusted position, a cable connected at one extremity with one of the drums and with the telescoping tubeat the opposite extremity, the wires of the external circuit being connected with the other drum and leading to the lamps of the electrolier, and means for disengaging the dog from the rack to permit the adjustment of the telescoping tube, substantially as described.

12. In an adjustable electrolier, the combination with the wires of an electrical circuit, and a suitable support provided with a depending tube, a tube telescoping in the stationary tube and supporting the electrolier proper, a spring-held drum mounted on the support, a cable attached to said drum and forming the support for the telescoping tube, a toothed rack attached to the stationary tube and extending into the telescoping tube, aspring-held dog mounted on the telescoping tube and engaging the toothed rack, a rod slidably mounted on the telescoping tube and arranged when actuated to disengage the dog from the toothed rack, and a circuit whose wires pass through the tubes to the lamps of the electrolier.

13. The combination with a suitable support provided with a depending tube, of another tube telescopically connected with the stationary tube and carrying the electrolier proper, a spindle journaled in the support, a

drumloosely mounted on the spindle, a spring connected with said drum at one extremity and with the spindle at the opposite extremity, a ratchet mounted on the spindle, a dog mounted on the support and engaging said ratchetfa lever mounted adjacent the ratchet and carrying a dog engaging the ratchet whereby the tension of the drum-spring may be regulated by manipulating the lever, a cable attached to the said drum and connected with the telescoping tube, and acircuit whose wires pass through the tubes and lead to the lamps of the electrolier, substantially as described.

14. In an adjustable electrolier, the combination with an adjustable stationary support provided with a depending tube,another tube telescopically connected with the stationary tube and supporting the electrolier proper, a spindle journaled in the support, a drum loose on the spindle, a spring coiled around the spindle and connected at one extremity therewith and at the other extremity with the drum, a sleeve through which the spindle passes, a drum mounted on said sleeve, a spring attached to the sleeve at one extremity and with the drum at the opposite extremity, a cable attached to the drum and connected with the telescoping tube, circuit-wires attached to the other drum and passing through the tubes to the lamps of the electrolier, substantially as described.

15. In an adjustable electrolier, the combination with a stationary support provided with a depending tube, another tube telescopically connected with the stationary tube and forming a support for the electrolier proper, a plug screwed into the top of the telescoping tube, a spring actuated dog mounted in said plug, a toothed rack attached to the stationary tube and projecting into the telescoping tube, said rack being engaged by the dog, a spring-held rod entering a recess formed in said plug from below and arranged when actuated to disengage the dog from the rack, the said rod being exposed at the lower extremity of a telescoping tube, a spring-held drum mounted on the support, a cable attached to said drum at one extremity and anchored in the plug of the telescoping tube at the other extremity, another spring held drum, and circuit-wires connected therewith and leading through the tubes of the lamps to the electrolier, the said support being provided with guide-pulleys for the cable and for the wires of the circuit, substantially as described.

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

GEORGE ANDERSEN.

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