US453914A - School-furniture - Google Patents

Description

(No Model.)

W. A RAMSEY. SCHOOL FURNITURE. No. 453,914. Patented June 9,1891.

WITNESSES:

ATTORNEYS UNITED STATES- PATENT OFFICE.

\VILHERFORCE A. RAMSEY, OF JOHNSON CITY, TENNESSEE.

SCHOOL-FURNITURE.

SPECIFICATION forming part of Letters Patent No. 453,914, dated June 9, 1891.

Application filed June 28, 1890. Serial No. 367,024- (No model.)

T0 at whom, it may concern.-

Be it known that I, \VILBERFORCE A. RAM- SEY, of Johnson City, in the county of Washin gton and State of Tennessee, have invented a new and useful Improvement in SchooL Furniture, of which the following is a specification.

My invention is an improvement in schoolfurniture; and it consists in certain novel constructions and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a side view of the chair. Fig. 2 is a front view of the chair, and Figs. 3 and at are detail views.

The foot portion A has its lower portion made in the shape of a cone A, havinga smooth exterior tapering from its broad base, which fits and is secured upon the floor to about the middle of its height at a, whence extends upward the tube 1 split at b,and having its. upper open end arranged. and adapted to receive the stem of the standard.

This tube 1; has on opposite sides of its split 1: cars or portions B, having openings formin bearings for the clamping-screw by which the tube 13 may be clamped upon the standard-stem to hold the same in any desired vertical adjustment.

Within the cone A, I provide in alignment with tube 1 a tube 1), which forms a continuation of tube B, its bore coinciding with that of the said tube 1 as shown. This tube D extends down nearly tothe plane of the bottom of cone A, being supported by wings or stays 1), extending from walls of the basecone and firmly securing said tube. This tube forms ,the casing for the spring E, which bears below and serves to press the stem of the standard upward, as will be hereinafter described. The standard F has its stem f fitted to tubes 13 and l), and is arranged to move freely in a longitudinal direction in said tubes when the clamp is released, so that by releasing the clamp the spring 1 will move the standard up, and when the standard has been adjusted to the desired height it may be stopped by tightening the clamp. Thus the scat may he quickly and conveniently adjusted to and held atany convenient height desired, be lowered to suit a small child, or raised to the propcrheightforan adult. The

made hollow for the clamping-bolt L, and the base made with the smooth conical exterior presents a good appearance and avoids all recesses or seats in which dust and dirt can accumulate and from Which it is difficult of removal. This construction, thercfore,'1'enders sweeping of the school-room much easier, as will be readily understood.

The standard for the seat has at its upper end the cross-bar II, which supports at its' opposite ends the front arms I and the rear arms J. The arms I have hinge or pivot pins I to fit in the openings K of the seat-cleats K, forming a hinge, so that the seat can be turned up out of the way ordown to position for use, as may be desired. In connection WiLh this hinge I employ spring-actuated devices which serve to secure the seat in any desired position, and also arrest the seat if at any time it should slip from the hand of the pupil. The spring and the devices actuated thereby are most clearly shown in Fig. 3. The pivotpins I of the uprights I are seat-cleat fits and turns on this pin 1 to its raised or lowered position, the seat being supported in its lowered or position for use by lugs I I on the upright I. The upright I has openings 2 for the passage of connectingrods 0 of the bearing-frame. This frame has plates 0 0 arranged, respectively, on the outer and inner side of arm I, the outer plate 0 being titted on the pin 1' and arran'gedto be pressed against the inner side of cleat K, and the inner plate 0' being perforated for the bolt L, which has the fastening-nutl on its inner end. The head L of bolt L is recessed on its inner side at .Z to receive the spring P,.which bears in said recess 0 Z and between the head L and arm K, and operates to hold the seat in any of its positions. The seat-board or seat proper M rests and is secured upon the cleats K. The rear arms J have at their ends upright lugs or portions]. and the back N has side bars n, which are lapped against the said partsj and secured by rings or clips 0, embracing parts a and j. This construction serves to secure the back rigidly in position in a simple, eco- I00 nomical, and convenient manner.

l An important advantage of the improved furniture isthat all the seats are exactly alike and of the same size-tending to economy-in construetion,and also insuring that each chair in described, the improvement consisting of will in size-suit its future occupant, as they the arm or part I, having the hollow pin 1' 20 can be adjusted to suit an adult or the smalland provided with the openings z, the seatest scholar. cleatK, having opening K fitting on the pin 5 Having thus described my invention, what I, the bearing-frame having the plate 0 ar- 1 claim as newisran ed between the )arts 1 K and to bear 1. The improvement in school-furniture, against the part I ',;the plate; 0', arranged 25 substantially as herein described, comprisingon the opposite side of part I from plate the standard provided at its upper end with and pins 0, extended between plates 0' O and lo the cross-bar II, the arms I and J at the ends through the openings i, the bolt L and nut l of eross-bar'H, such arms being projected, and the spring, all arranged and adapted to respectively, to the front and-rear, and the operate substantially as and for-the purposes 0 rear arinls J being provided with lugs or porset forth. tionsj,t1e seat supported on the front arms i 7 a I r r 5 I, the back havingside bars 01, lapped against ILBERI Om RAMbI tlie'lugsjand clamps for connecting parts \Vitnosses:

nj, all substantially as set forth. p p S. 13. WHITE, 2. In school-furniture,substantiallyashere- J. ll. PIERCE.

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