US1088607A

US1088607A - Electric-lamp stand.

Info

Publication number: US1088607A
Application number: US81215914A
Authority: US
Inventors: William A Mckay; Martin Claussen
Original assignee: WIZARD ELECTRIC LAMP Co
Current assignee: WIZARD ELECTRIC LAMP Co
Priority date: 1914-01-14
Filing date: 1914-01-14
Publication date: 1914-02-24
Anticipated expiration: 1931-02-24

Description

W. A. MUKAY &-M. oLAUssEN.

ELECTRIC LAMP STAND.

APPLIOATION FILED APILS, 1912. mmnwnn JAN. 14, 1914.

Patented Feb. 24, 1914.a

WITNEssEs ...M W w w w n ATTORNEY7 UNITED STATES PATENT OFFICE.`

WILLIAM A. MGKAY AND MARTIN CLAiUSSEN, OF SAN FRANCISCO, CALIFORNIA,

ASSIGNORS TO WIZARD ELECTRIC LAMP COMPANY, OF SAN FRANCISCO, CALI- FORNIA, A CORPORATION 0F CALIFORNIA.

ELECTRIC-LAMP srenn.

Specification of Letters Patent.

Patented Feb. 24, 1914..

Application filed April 3, 1912, Serial No. 688,289. Renewed January 14, 1914. Serial No. 812,159.

To all whom it may concern.'

Be it known that we,\V1LLIAM A. MCKAY and MARTIN CLAUssEN, citizens, respectively, of Canada and the United States, residing at San Francisco, in t-he county of San Francisco and State of California, have invented new and usefu-l Improvements in- Electric- Lamp Stands, of which the following is a specification. y

The present invention relates to an improved form of electric incandescent lamp stand, one object of the invent-ion being to provide a device of this character of neat and attractive form, which can not only be used as an ordinary lam stand, to rest loosely upon a table or otlier like support, but can also be clamped, immediately and without having to turn it to a particular position for that purpose, to a table or other horizontal support, or to a vertically extending support, if necessary.

it further object of the invention is to provide a lamp stand of this character, which can be so clamped to, or supported upon, expensive tables or other furniture, and which wi'll not mar or-scratch the surface of said tables.

A further obj ect is to provide such a lamp stand, in which, without diminishing the ncatness and attractiveness of the lamp stand the lamp cords can be wound up, even though the lamp stand is already clamped to the table or other support, so that only such part of said cord will extend outside the lamp, and be visible, as is necessary to connect said lamp with the socket or other means of communication `with the main wires.

Further objects and advantages of our improved lamp stand will appear from the description thereof and the illustration in the accompanying drawings, in which,

Figure 1 is an improved vertical section of our improved lamp stand; Fig. 2 is a sideview of an upper portion thereof taken at right angles to Fig. 1; Fig. 3 is an enlarged detall cross section on the line 3 3 of Fig. 1; Fig. 4 is a perspective view of a closure; Fig. 5 is a detail cross-section on the line 5-5 'of Fig. 1.

Referring to the drawing, 1 indicates an incandescent electric lamp, the wires 2 of which pass through a contracted neck 3, which is screwed into the cylindrical side of a horizontally extending cylindrical ferrule 4, which is contained between vertically extendlng sides of a union 6, being clamped between said sides at any desired angle about its axis by means of a bolt 7 and a thumb nut 8. Said clamping sidesof said union are formed with channel ways 9 in which said wires are received. The lower end of the union is contracted, as shown at 11, and is fitted within the upper flaring end of a vertical tube 12. The wires leading to said lamp extend through holes in said lower plate in turn rests upon a soft rubber ringV 17 which is pressed outward by a circular .spring 18 against the downwardly depending flange 19 of an outer conoidal casing 21, an upper portion of which casing is contracted and fits snugly around the tube portion 12, but the uppermost portion 22 thereof flares or expands slightly to the top and is then bent inwardly, as shown at 23, and within said expanding portion there is contained a small strip 25 of felt or similar material, so that the upper edge of the casing can never come in contact with the outer surface of the tube 12 and scratch or mar the same. Between said casing 21 and plate 16 is contained another plate 24 spaced slightly above the plate 16 and similarin form, and extending substantially at a uniform distance from said lower plate 16, but having a depending central hub portion or tube 26 closely surrounding the tube 12. The plate 16 is formed with two arcuate slots 27 to permit portions of the tube 12 to slide vertically therethrough, while said tube 12 is formed with diametrically opposite vertical slots 28 to permit unslotted portions of the plate 16 to slide vertically therein. By this construction, although the tube 12 and plate 16 are connected to each other so that no lateral movement of either can take place relative to the other, the tube 12 is permit-ted a free vertical movement relative to the plate 16.

Within the tube is a stem 29 threaded at both ends. On its upper threaded end, passing through a central aperture in the bottom of the union 6, is a nut 31, and on its lower 7 threaded end is-a nut 32 which, by the spring 13, pressing upwardly against the union 6, is pressed upwardly against a central cylindrical or cup-shaped po-rtion 33, contained within the lower end of the Itube 12, of a disk 34, which rests on the convex upper side of a base 35 having at its circular margin an upwardly extending flange 36.'

. under side of the disk 37. The base 35 is of such size that the felt ring 39 is held firmly between the

flanges

36 and 30 by friction. The felt ring 39 forms a yielding base, whereby the stand can rest upon a table or other flat surface, the ring 17 resting in like manner upon the disk 37.' But if it be desired to 'clamp the lamp stand to a table or other suit-able support, then the tube 12 is depressed on its lower end, pressing upon the disk 37 causes it to separate from the rubber ring 17 so that said disk and ring can be placed, the one above and the other below, said table. In this operation, the tube l2 slides through the plate 16 and the coiled spring 13 is compressed between the top of the thimble 14 and the bottom of the union 6. Consequently said spring acts as a clamp spring to draw the disk 37 toward 'the ring 17 and secure the lamp stand to the table or other support. The disk 34 can rotate with the tube 12 between the base 35 vand the disk 37 without imparting rotation thereto., and thus the lamp cord can be wound up without the clamping parts being affected thereby. We preferably secure upon the upper side of the disk 37 the sheet 39 of felt or'other 'yielding material, so that, when the stand is clamped to a support no scratching or marring of its surface can be caused thereby. f It will be observed that the clamp acts in' precisely the same manner whatever portions of the edges of the disk 37 and rubber ring 17 are pressed against the edge ofthe article to which the lanp stand is clamped. The lamp cords 2 pass through one of said vertical slots 28 in the tube 12, and their upper portions are contained in a single cord 40. If the tube 12 be turned while the casing 21 is prevented from rotating, the lamp cord will be wound up, as clearly shown in Fig. 1, in a coil, which is received between the two conical plates 16 and 24. It will be understood that the outer edge of the lowerplate 16 is not positively connected to the casing 21 or to the rubber ring 17, but is merely pressed thereagainst by the pressure of the coiled spring 13, which does not produce suiiicient friction to prevent the turning of the plate 16 and the tube 12. This arrangement permits the cord to be wound up to any desired extent, the Wound-u portion being entirely concealed within t e casing 21, which is of a neat and attractive form.

The plates 24 and 16 extend substantially a' uniform distance apart, which distance is a little greater than the width of the lamp cord 40. In consequence of this arrangement the lamp cord is wound up in asingle coil and does not undergo any bending or twisting other than that necessary for the coiling operation. Excessive twisting or sharp bending of a coil wears it out much more quickly than any other cause, and by providing that the cord 'can only be wound in a single coil, this sharp bending is avoided.

By bending the lamp socket and neck on the pivot, so that they extend substantially at right angles to the tube 12, said socket and neck can be'used as a crank arm for conveniently turning the tube 12 to wind up the coil 40. Moreover, when the lamp is secured upon the edge of a table or other suitable support, then by turning the tube, and also by turning the socket on the tube, the lamp can be adjusted so that a reflector thereon reflects the light in any direction desired, the rotatable tube 12 and the union 6 thus constituting in effect a universal joint.

It will be observed that the upper edge of the casing does not come in contact with the tube 12 so that there is no scratching of said tube. The portion of 'the tube 12 'which comes in contact with the casing is at such a distance below the top of the casing, that it never becomes visible in actual use.

We claim l. A lamp stand comprising a casing, and a tube arranged to move longitudinally within said casing, said casi-ng and tube having each a lateral extension, the extention of the former normally resting upon the extension of the latter, and ,a spring within said tube acting to move said tube through said casing to draw said extensions together.

2. A lamp stand comprising a casing, and a tube arranged to move longitudinally within said casing, said casing and tube having each a lateral extension, the extension of the former normally resting upon the extension of the latter, and a spring within said tube acting to move said tube through said casing to draw said extensions together` said casing having a mediate portion fitting snugly around said tube and flaring upwardly therefrom.

3. A lamp stand comprising a casing, and a tube arranged to move longitudinally within said casing, said casing and tube having each a lateral extension, the extension of the former normally resting u )on the extension of the latter, and a spring within said tube acting to move said tube through said casing to draw said extensions together, said casing having a mediate portion fitting snugly around said tube and flaring upwardly therefrom and yielding material around the tube within said upwardly fiaring portion.

4; In a lamp support, the combination of a -tube for directly supporting the lamp, a

casing around Said tube, a ycircular base movably connected to the lower end ofsaid tube, the `wires of said lamp passing through said tube, a plate support-edy in, and movable with, the casing, an upper plate between said casing and lower plate, and extending at a substantially uniform distance from said lower plate, said lamp wires passing between Said upper and lower plate, said casing having an aperture through which said lamp wires can pass outwardly from within the casing, said plates being rotatable with said tube relatively to said casing- 5. A lamp stand comprising a casing, :and a device having means for securing a lamp thereto arranged to move longitudinally within said casing, said casing and device having each a lateral extension, and a spring acting to move said device upwardly through said casing.

G. A lamp stand comprising a casing, and a device having means for securing a lamp thereto arranged to move longitudinally within said casing, said casing and device having each a concentric circular lateral extension, and a spring acting to move said device upwardly through said casing. y

7 A lamp stand comprising a casing, and a device having means for securing a. lamp thereto arranged to move longitudinally within said casing, said casing and device having each a` lateral extension, said device being rotatable relatively to the extension therefrom, and a spring acting to move said device upwardly tirough said casing. f

8. In a support for an incandescent electric lamp, a joint for connecting the lamp socket to the support, comprising a cylindricalferrule, a union having vertically extending sides, a bolt and a thumb nut clamping the ends of the ferrule between said sides, said clamped sides being formed with channel ways to receive the wires of the lamp.

9. In a support for an incandescent electric lamp, a joint for connecting the lamp socket to the support, comprising a cylindrical ferrule, a union having vertically extending sides, a bolt and a thumb nut. clamping the ends of the ferrule between said sides, said clamped sides being formed with channel ways to receivethe wires of the lamp, and a U-shaped piece closing the openings between said clamping sides.

10. In a lamp support, the combination of a casing, a tube for directly supporting the lamp, and rotatable within the casing,l the .wires of said lamp passing through said tube and formed outside the tube into a lamp cord, parallel upper and lower plates rotatable with the tube, and spaced apart a distance slightly greater than the width of the lamp cord, said lamp cord passing between said upper and lower plates, and said casing having an aperture through which said lamp cord can pass outwardly from within the casing.

11. The combinatlon of a base, a tube rotatably supported thereby, an electric lamp socket having a pivotal connection with the outer end of said tube, wires for supplying the lamp, contained within the tube and guided by the base, means for securing the base to a support, and a winding spool for I said wires, within the base and secured to said tube and rotatable therewith.

In testimony whereof .we have hereunto set our hands in the presence of two subscribing witnesses.

WM. A. MGKAY. MARTIN CLAUSSEN.