US1091969A - Adjustable lamp-stand. - Google Patents

Description

E. SEIDBL.

ADJUSTABLE LAMP STAND.

APPLIOATION r ELI-1D NOV.19,1913

Patauted Mar. 81 1914.

2 SHEETS-SHEET 1.

ML d i e 8 "vvifmeoow m6 u n m E SEIDEL. ADJUSTABLE LAMP STAND. APPLIOATION FILED NOV.'19, 1915i.

L09 1,969, Patented Mar. 31,1914.

2 SKEETS-SHEET 2.

afW-N $511111 45 nMIn SEIDEL, or PROVIDENCE, RHODE ISLAND.

ADJUSTABLE LAMP-STAND.

Specification of Letters Patent. I Patented. Mar, 31, 1914,

Application filed November 19, 1913. seriai No. 801,943."

To all whom it may concern:

Be it known that I, EMIL SEIDEL, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and 'useful Improvements in Ad: justable Lamp-Stands; and I do hereby 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.

, This invention comprehends improvements in adjustable lamp stands and relates more particularly to those of the portable.

type.

One of the objects of the invention is to provide a lamp stand so constructed as to hold a gas lamp either in an inverted or an upright position.

Another object of the invention is to provide a lamp stand which may be vertically adjusted, which may be swung to carry the lamp in a circle, and which is provided with adjustable arms, so that the distance of the lamp from the standard'may be varied.

Another object of the invention is to provide an adjustable lamp stand of extremely simple construction, cheap to manufacture and easy to assemble.

The invention also aims to generally improve devices of this nature to render them more useful,'practical and commercially de sirable.

With these and other objects in view as will become more apparent as the'description proceeds, this invention consists in certain novel features of construction, combination and arrangement of parts as willbe hereinafter more fully described claimed.

For a complete understanding of my invention, reference is to be hadto the following description and accompanying drawings, in which- Figure 1 is a side elevation of my improved stand, showing a lamp supported in an inverted position, Fig. 2 is a vertical sectional view partly in elevation, with the base and lamp omitted, Fig. 3 is a transverse section taken on the plane of line 3--3 of Fig. 2, Fig. 4 is a section taken on the plane of line l t of Fig. 2,. and Fig. 5 is a andfragmentary view, partly in section,show- 1n alamp supported in an u right position.

eferrm'g In detail to the rawings by numerals, 6 designates a base which may be o any preferred construction and to which is.

connected by means of a threaded stud 7 a spherical coupling 8 having an angular.

bore 9 which communicates at one end with a nlpple 10 to. which a section of'gas tubing may be very easily connected. The lower,

section 11 of a telescopic standard, generally designated 12, is secured to the coupling 8 by means of a sleeve 13, and is formed interlorly ad acent its lower end with a shoulder 14 which is engaged by the upper' tubular section 15 of the standard. A set screw 16 is carried by the section 11 for engagement with the section 15,, whereby the relative ositions of the two sections may be fixed. o strengthen the standard .12 and I I insure against an escape of gas, I provide a tube 17 which is threaded into the coupling 8 at its lower end and which carries adjacent 1ts upper end a packing rin 18 for engagement with the interior of t e section 15,.

To the upper end of the standard, I secure a spherical head 19 which is formed with a tapered bore 20 and an arcuate channel 21 opening upon said bore. A' shaft designated, generally, by the numeral 22, extends through the head 19-and is centrally enlarged, as indicated by the numeral 23, to closely fit within the bore 20. The central portion of the shaft 22 is formed with a plurality of radial openings 21 which communicate at their outer ends with the channel 21 and at their inner ends with a longitudinal bore 25 which opens upon one end of the shaft. Nuts 26 are carried by the shaft 22 and may be threaded into engagement with the head 19 so as to hold the portion 23 of the shaft firmly in engagement with the walls of the bore 20 so that no gas may escape.

To the extremities of the shaft 22, couplings 27 and 28 are connected. Telescopic arms 29 and 30 are connected to the couplin'gs 27 and 28 respectively. The arm 29 includes a rod 31 threading into the coupling 27 and a sleeve 32 which slides upon the rod 31. The arm 30comprises a tube 33 threaded into the-coupling 28 and a sleeve 34 which telescopes over the outer end of thetube 33. Coupling members 35 and 36 are connected to the outer ends of the sleeves 32 and 34 respectively. The couplings 35 and 36 are connected by the rods 37 and 38 and a shaft 39, the rods forming a bearing for the shaft. The shaft 39 is formed in one end with a socket 40 into which a stud 41 of the rod 37 projects. A longitudinal bore 42 extends partly through the shaft39, and the rod 38 is reduced in diameter so as to fit closel within this bore. A sleeve 43 surroun s the shaft 39 and engages the rods 37 and 38, as clearly shown in Fig. 2.

44 is carried by the sleeve 43 and is formed with a transverse opening 45 which registers with openings 46 and 47 formed in the sleeve 43 and shaft 39 respectively. A connecting screw 48 is extended through the openings 45, 46 and'47 and is threaded into engagement with the shaft 39, this screw is formed with a longitudinal bore 49 through which shafts may pass into a neck 50 formed upon the coupling 44 and surrounding the head of the screw.

When an upright lamp is connected to the neck 50, as shown in F ig. 5, a weight 51 is connected to the coupling 44 at a point diametrically opposite said neck, so that the lamp will be held in a proper upright position. The weight may be connected to the coupling-in any preferred manner, and for the purpose of illustration I have shown a bolt 52 extending through said weight and threaded into a socket 53 formed in the coupling.

To hold the arms 29 and 30 at different angles with respect to the standard, I employ a connecting rod 54 whic'r is secured to collars 55 slidable upon the outer sections of said arms. These collars may be locked to the sleeves 32 and 34 by means of the set screws 56. A sleeve 57 is rotatable upon the rod 54 and is formed with an eye 58 to which is connected one end of a chain 59. This chain extends through an opening 60 formed in the enlargement 61 of the head 19, and said chain may be prevented from sliding through the opening 60 by means of a set screw 62.

Gas flows to the lamp 63 or 64 by passing through the standard 12 and shaft 19 to the telescopic arm 30. The tube 33, forming one section of this arm, carries adjacent its free end an attaching ring 65 which engages the interior of the sleeve 34 so as to prevent any leakage of the gas. From the sleeve 34 the gas flows through the coupling 36 into the bore 66 of the ,rod 38. The-bore terminates short of the end of the rod and communicates with the bore of the shaft 39 by means -of the openings 67.

When it is desired to lengtheii or sh'trten the arms 29 and 30, the set screws 68 are loosened and again tightened when the proper adjustment has been made. It will be noted that the rod 54 acts as a brace for the arms 29 and 30, as well as serving to adjustably support one end of the chain 59.

From the foregoing description taken in connection with the accompanying drawings, it will be apparent that I have provided a very simple, and practical adjustable lamp stand, which may be used in connec tion with an upright o-r inverted gas lamp. Since the coupling 44, which carries the lamp, is free to swing, various adjustments may be made without danger of breaking the mantle of the lamp since said mantle will always be positioned in a vertical plane.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination andnrrangement from the scope and spirit of the invention as claimed.

Having thus described my invention, I claim 1. A lamp stand, including a standard, a shaft journaled through said standard, telescopic arms connected to said shaft, a rotatable shaft supported between the outer ends of said arms and means for connecting a lamp to said rotatable shaft.

2. A lamp support, including a standard, a shaft journaled through said standard, a pair of parallel arms rigidly connected to the ends of said shaft, a rotatable shaft supported between said arms, lamp supporting means rigid with said rotatable shaft, and means for holding the arms at different angles with respect to the standard, the stand being formed with a continuous duct to the standard, whereby the arms may be held in fixed relation to said standard.

4-. A lamp supporting stand,'including a standard, a head secured to said standard, a shaft journaled through said head, a pair of arms rigidly connected to said shaft and extending in parallel relation to each other, a cross bar adjustably connected to said arms, a flexible member secured at one end to said cross bar, the head being formed with an opening through which said flexible member extends, and means for loclriig the flexible connection to said head.

5. A lamp supporting stand, comprising a standard, a shaft rotatably secured to said whereby gas may be conducted from the i etandard, a pair of parallel arms rigidly se- In testimony whereof I afiix my signature cured to said shaft, a second shaft rotatably in presence of two Witnesses. secured between said arms a coupling member rotatable with said econd mentioned EMIL SEIDEL' .5 shaft, a lamp connection formed on said c0u- Witnesses:

pling member, and means for holding said RUnoLF Wnonnn,

lamp connection always in a vertical plane. WALTER BRUL.

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