|Publication number||US1279803 A|
|Publication date||Sep 24, 1918|
|Filing date||Sep 29, 1917|
|Priority date||Sep 29, 1917|
|Publication number||US 1279803 A, US 1279803A, US-A-1279803, US1279803 A, US1279803A|
|Inventors||George F Watson|
|Original Assignee||George F Watson|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (34), Classifications (13)|
|External Links: USPTO, USPTO Assignment, Espacenet|
G.. F. WATSON.
APPLICATION FILED SEPT.29, 19H.
. F. WATSON.
APPLICATION FILED SEPT. 29. I9'I 7.
1,279,803. Patented sept. 24,1918.
2 SHEETS#SHEET 2.
GEORGE F WHTSON UNITED STATES PATENT OFFICE.;
asomar. viz-Arson, or; noexmim, Mama.
Specification 0f Letters Patent Patented Sept. 24, 1.918.
Application filed-September 29, 1917.- 'Serial No. 194,013.
To all 'whom it may-concern.' .A
Be 't known that I, GEORGE. F. WATSON, a subject of Great Brita-in74 residin at Rockland, in the county of Knox an Maine, have invented certain new and useful Improvements in LightSupports, of which the following is a specification, reference being had to the accompanying drawings.
T his invention relates to certain improvements in light supports and it is an object of the invention to provide a novel and improved device of this general character wherein a Hexible stand is employed and wherein saidlstand comprises a plurality of relatively movable members.
' The invention also has for an object to provide a novel'and improved device of this general character including a plurality of relatively movable members and wherein said members are maintained in hperative relation and in various positions `through frictional Contact `and wherein said friction is created by a retractile member disposed through the members and secured to the end members.
A still further object of the invention yis to provide novel andimproved means whereby the tension of the spring coactin'g with Athe movable members may be regulated upon relative, movement of certain of 4the members comprised-in the stand.
The invention consists in the details of construction and in the combination and arrangement of the several parts of my imn proved lightsupportwherein certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous i'or use, as Willbbe hereinafter more fully set tort 1 The novel features of my invention will hereinafter he definitely claimed.
In' order that my invention may be the better understood I will now proceed to describe the same with'reference to the a'ccompanying drawings wherein: v
Figurel is a view in elevation of a light support constructed in accordance with an embodiment of my invention;
- Fig. 2 is a-sectional view taken substantially on the line 2v2 of Fig. 1;
F1 3 is 'a fragmentary longitudinal secs tiona view taken through the base portion of my improved support;
' Fig. 4 is .a longitudinal sectional view State of taken through oneof the movable members comprised in the support as herein dis closed; and
F ig. 5 isa fragmentary-view partly in section and partly 'in elevation illustrating the outer member ot' my improved support together with the co-acting portion ofa lamp receiving socket.
As disclosed in the accompanying draw-- ings l denotes a base member of predetermined dimensions and configuration and which has resting upon its upper face at substantially itsaX-ial center a circular block 2. The lower marginal portion oi the block is provided with an annular-.flange f5 through which is disposed the headed screws 4 or the like for securely holding the blockl i5 in applied position.
5 denotes an elongated cylindrical sleeve, open at bothends and having its lower end portion surrounding the block 2. The sleeve 5 is also capable of rotary movement about the block 2 for a purpose which will hereinafter more fully appear.
Telescopicallyengaged within the' member V5 is a secondfcylindrical member 6 eX- .2' isxgradnally reduced on a predetermined taper and terminates in the substantially spherical enlargement or head 8. FrietionnllyI engaging theenlargement or head y8 is the open end portion ot a hollow member 9 preferably in the form of a truncated cone and having its outer end provided with the substantially spherical enlargement or head l0. ,Co-acting withthe member 9 and with each other are a plurality of members ,11, each of. said members being substantially the same construction and formation as the member 9 although each of said members l1 outwardly from the member 9, are-.of gradually decreasedv dimensions.
Fctionally'engaging the head 12 l,of the outermost member l1 is a. tubular member 14 substantially in theV form of a truncated cone and having its outer end 15 closed.
The closed end 1.5 at the axial center thereof is provided-with an openingl defined by,4 an outstanding annular ange 17 with which isthreaded or otherwise engaged the socket v member 19 co-acts with the members 14 2 BEST .FNAIM-LELE COPY end 15 of the member 14. Thelower ory op-- posite end portion of the expansible member 19 is suitably anchored vas at 21 to the block 2 hereinbefore referred' to. The expansible 'member 19 as herein disclosed comprises a coil spring and it has 'been found best practice to have the convolutions of sald spring formed of flattened material. The
and the block 2 to constantly urge the members 14, 11, 9 and 7 inwardl so that the requisite frictional co-action tween said members is assured in order tomaintain the stand as afforded bythe members 7, 9, 11 and 14 in a vertical position or in any other position to which the stand maybe flexed or bent. v
In order to' regulate the tension of the member 19 in accordance with the require-l ments of .practice and to properly assure the requisite frictional contact of the members comprised in my improved stand the member 5 has produced therein the substantially V- .shaped slot 22. The apex of the slot 22 is disposed transversely of the longitudinal axis of the member 5. The member 6 is provided with an outstanding pin or lug 23 extending 'within the slot 22 and co-actmg with the lower edges or walls of said slot. It will be at once perceived that upon rotating the member 5 about the block 2 the pin or lug 23 will ride upon a lower ed e of the slot 22 and either raise or lower 51e member 6 resultmg in either increasing or decreasing the tension of the member 19. In order to main tain the sleeve 6 at various positions longitudmally of the member 5 I provide the lower walls of the slots 22 with the recesses or notches 24 in which the pin or lug 23 is adapted to seat. I
Leadin from the socket S and disposed through t e coil sprin 19 are the conductors a leading from the soc et S. The conductors a are also disposed through the registering openings 25 produced in the base member 1 and the block 2. 'Ihe conductors a are then continued throu li the groove or channel I 26 produced in t e under face of the base 55 member 1 and' which groove or channel radiates from the opening 25. The conductors a are adapted to be connected in any desired manner with suitable electrical source. It is also desirable to provide the bottom face of the brace member 1 with a lamination -27 of felt or other soft material for a purpose which is believed tobe self evident.
From the foregoing description, it is thought to be obvious that alight support constructed in accordance with my invention is particularly well adapted for use by reason of the conveniencenand facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification without materially departin from the principles and spirit thereof an for this reason VI do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.
A light support comprising a plurality of members having adjacent ends in frictional contact andl movable one relative to the other, a base, a tubular member rotatably supported by the base, an end member being telescopically engaged within the tubular member, a lamp carried by the opposite end member, a retractile member disposed through each of the members and secured to the lamp carrying member andto the base for maintainingfthe members in frictional :l contact, said rotatable tubular memberbeing provided with a substantially V-shaped slot with'its apex disposed transversely of .the tubular member, and a lug carried'b the portion of the member within the tu ular member and extending said slot whereby said last named member is moved longitudinally of the tubular member upon rotation of the tubular member.
In testimony whereof I hereunto aix my. .i
signature in the presence of two witnesses.
.4 I Gr'lilORG'E F. WATSON. Witnesses:
EDWARD C. Moms, R. M. PATTERSON.
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|U.S. Classification||248/160, 138/120, 362/421, 362/414, D26/103, 174/111|
|International Classification||F21V21/32, F16M11/40|
|Cooperative Classification||F21V21/32, F21V21/29, F16M11/40|
|European Classification||F21V21/32, F16M11/40|