US565083A

US565083A - Revolving bookcase

Info

Publication number: US565083A
Authority: US
Publication date: 1896-08-04
Anticipated expiration: 1913-08-04

Description

(No Model.)

W. S. LYNNE.

REVGLVING BooKGAsE, No. 565,083. Patented Aug. 4, 1896.

UNITED lSTAT-Es PATENT EEicE.

WILLIAM s. LYNNnoE Prrrsnune, PENNSYLVANIA.

REVOLVINGVBOOKCASE.

SPECIFICATION forming' part of Letters Patent No. 565,083, dated August 4, 1896. Application iiled September 30, 1895. Serial No. 564,066. (No model.)

To all' whom it may concern:

Be it known that I, WILLIAM S. LYNNE, a citizen of the United States of America, residing at Pittsburg, in the county cf Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Revolving Bookcases, of which the following is a speciiication, reference being had to the accompanying drawings.

'Ihis invention relates to certain new and useful improvements in bookcases in oeneral, and relates more particularly to that class known as revolving book cases or stands.

The invention has for its object the con-- struction of a revolving bookcase that will possess numerous advantages over those now employed and that will be attractive in its appearance.`

Afurth er object of the invention is the construction of a revolving bookcase that will be easy to operate and that can be readily moved to different positions in the room, as desired.

A still further object of the invention is the construction of a bookcase of the abovedescribed class that will be extremely simple in its construction, strong, durable, effectual in its operation, and comparatively inexpensive to manufacture.

IVith the above and other objects in view the invention finally consists in thenovcl construction, combination, and arrangement of parts to be hereinafter more particularly described, and specifically pointed out in the claim.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specication, and wherein like figures of reference indicate similar parts throughout the several views, in which- Figure 1 is a vertical sectional view of my improved revolving bookcase. Fig. 2 is a top plan view of the bearing-plate. Fig. 3 is an underneath plan view of the same, partly broken away.

In the drawings, 1 represents the central shaft extending through the bookcase. Said shaft carries on its'top a ball 2. The shaft 1 is screw-threaded at 3 near its upper eX- tremity, said screw-threaded portion being adapted to carry a nut 4. Directly underneath said nut and adjacent thereto is placed a washer 5, which underneath side abnts against the top of the bookcase proper.

The reference-figures 6 G 6 6 represent the shelves of the' bookcase, the latter being placed equidistant from each other and retained in position by means of sections of tubing 8 8 8, surrounding the central shaft 1. At the free ends of the said tubing a series of washers f) 9 9 9 are arranged, said washers also serving to clamp and eifectually retain in position the shelves G 6 6 6, the tubing S S S abutting against said washers.

At the lower extremity of the central shaft 1 and beneath the lowerinost shelf is arranged a bearing-plate 10, said plate being provided with an annular groove 1l, and is adapted to receive balls 12, forming a ball-bearing against the plate 13, said plate being rigidly attached to shaft 1. A lower plate 14 is secured to the end of the shaft and serves to fasten the legs 15, which are mortised and secured together in the old and well-known manner. Said legs are provided with casters 16. Securing-strips 17 17 17 are attached to the shelves near their outer extremity, forniing braces of support, as will be readily understood.

I wish to call particular attention to the Inode of securing the shelves between the Washers and sections of tubing. It will be noted that should the shelves become loose they can be readily tightened by the nut of the central shaft 1, which will tend to force the sections of the tubing and the washers against the shelves. Furthermore, the washers and the sections of the tubing will retain the shelves in their proper position and aid in bracing the saine.

It will be noted that various changes may be made in the details of construction of my improved revolving book case or stand without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

In combination, a suitable base having a bearing-plate 10, ball-bearings operating in a groove of the bearing-plate, a shaft passing through the bearing-plate, at plate 13 secured In testimony whereof I tfx my signature to the shaft and restingon the ball-bearings, in presence of two Witnesses.V :t series of shelves havin g central apertures to receive the shaft, tubular sections arranged vWILLIAM S. LYNNE. 5 between and supporting the shelves and Witnesses:

Washers arranged at the ends of the tubular H, C. EVERT,

sections, as and for the purpose described. H. E. SEIBERT.