US1671231A - Adjustable stand - Google Patents

Description

May 29, 1928.

s. B. CULBERTSON ADJUSTABLE STAND his INVENT OR.

lfN/V .3 C'ULEEATSOM ATTO EY5.

Patented May 29, 1928. j

UNITED, STATES PATENT OFFICE.-

GLENN B. cunnnnrson, or INnIAnAroLIs, INDIANA, nssrenon ro ARTHUR n.

s'rnroxnenn. or INDIA Aronrs,INDIANA.

ADJUSTABLE simian.

Application filed March 7,

This "invention relates to a bed stand for reading and writing purposes.

The chief object of the invention is to provide a stand that can be used for reading and writing purposes while lying o seated in bed or seated in a chair. 1

The chief feature-of the invention consists in the universal adjustability of the stand or platform.

Another feature of the invention consists in the knockdown or collapsible arrangement of the several parts.

Still a further feature of the invention consists in the simplification of the several parts and the reduction thereof to a minimum number and these of like character so that they may be formed from a minimum number of dies.

The full nature of the invention will be understood from the accompanying draw ings and the following description and claims. i

In the drawings Fig. 1 is a front View of the invention. Fig. 2 is a side elevation thereof.

In the drawings 10 indicates a platform and the same supports compressible clamps of which four are shown. The clamps comprise a clamping portion 11, the free end terminating in'a loop 12 and the same is connected to a supporting portion 13 by a loop 14 and said supporting portion has an eye 15 by means of which the same is pivotally anchored to the back of the platform by the screw 16. The base .13 is extended beyond the anchorage asshown and constitutes a bearing for increasing the pressure exerted bv the clamping portion 11. Any other form of leaf clamps maybe mounted on the platform as desired. Each side of the platform is provided with a rail 17 and herein the same is on the back. Said rails support pivot forming means which in the present inven tion, is shown as an elongated threaded bolt 18 having the head 19 and adapted to receive the clamping nut 20 at the opposite end.

The framework supporting the pivot and adjustably supporting the platform consists of a pair of triangular wire members, the same being inclined, as shown in Fig. 1, for forming an A-frame arrangement. Each side portion of the framework consists of a single wire having the base '21 and the two upwardly and inwardly directed eaten 1927. Serial I No. 173,427.:

sions22 each terminating in an eye 23 receivingthe bolt 18. Adjacent the junction of eachside 22 with the base 21 is an eye socket 24. The two triangular side frames have their eyeleted ends secured in spaced relation bythe rod 18,said ends bearing on washers 25 adjacent the side rails 17 of the platform 10. The lower portions of the triangular side-frames are-also connected together in spaced relation as follows: An arch member, wire or rod 26 has a semicircular loop 27 at each end and each eye 24 is adapted to receive one of the semi-circular loops 27, as shown. Spreading movement of the side frames outwardly at the base is pre-,

vented by the eye 24 engaging the junction 28 of the arch member and loop 27 and inward movement of the arch member 26 is prevented by engagement of the extension 29 with the portion of the side frame immediately adjacent the eye 24. The resultant construction, therefore, is that the entire framework is relatively rigid when in assembled relation.

To collapse orknockdown the same, the

eyes 23 are released from the pivot forming projecting ends of the bolt 18 or its equivalent, and the side frames are turned inwardly towards each other. This permits the free end 29 to clear the portion adjacent the eye 24 and that thus permits the arch member 26 to be tilted inwardly a suflicient amount so that the several members may be readily detached if desired. If it is desired to have said members permanently connected together a suitable arrangement may be provided between the junction of the inclined sides and base of the triangular framework with the adjacent end of the arch member.

Fig. 2 illustrates a position in which a book is clamped to the platform and the same is held in substantially inverted position so that the reader therebeneath on a bed or the like can read with perfect ease and comfort. If the stand is to be used with a chair, or by one who is sitting up in bed, the platform will be positioned about ninety degrees from that shown in Fig. 1. The framework is so arranged that it substantially straddles the person whether they be seated in a; chair, or seatedin bed or lying in bed and provides ample clearance. Releasing the clamping tension of nut 20 permits the standard 1O to be tilted into any desired position, whereupon threading of the nut will clamp the parts so that the standard will be maintained in the adjusted position.

The invention claimed is: 1. A straddle typefframework for a stand of the character described, including a pair of substantially triangular side frames, and;

a pair of arched members connecting adjacent corners of the opposite sides ofsaid triangular frames, said arched members being otherwise independent of each other and providing a relatively clear space therebeneath. a y

2. A straddle type framework for a stand of the character described, including a pair of substantially triangular side frames. arched means connecting adjacent corners of lapsible positioning therebetween when desired.

3. A device as, defined by claim 2, characterized by each side frame comprising a sinbase angles and the free ends being posigle member having the sockets formed in the tioned adjacent each other and .formed for a common anchorage. H

In Witness whereof, I have hereunto affixed my signature.

GLENN B. CULBERTSON.

CERTIFICATE 9F (IQRRECTION.

Patent No, 1,671,231. Granted May 29, 1928, to

GLENN B. CULBERTSQN.

it is hereby certified that the above nambereii patent was erroneeusly issued to Arthur E. Strickland, of Ihdianapeiis, iiiiiiana, as assignee of entire interest in said invention, whereas said patent sheaiti have been issued is ehe inventor said Culbertson and Arthur E. Siiichlahd, ei hlriianapeiis, kaiiaha, said Culbertson being assignee of ene-haii interest 0:113 in said inventieh, as shewn by the records 1 "of assignments in this office; and that the said Letters Patent sheuid be read with this correction therein that the same may conform to the record of the casein the Patent Office.

Signed and sealed this 19th day of June, A. D. 1928.

H M. J. Moore, (Seal) Acting Commissioner of Patents.

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