US152224A - Improvement in school-desks - Google Patents

Description

2 Sheets--Sheet l. w. P. GouLMAN.

School-Desks. N0'}52J224l i" Patentedlune231 74.

[1mm-faz" pi! gy stud, h, of the standard.

arm has also a iixed pawl, g2, adapted to en- NTD STATES PATENT OFFICE. l

YVILLIAM I). GOODMAN, OF KANSAS CITY, MISSOURI.

IMPROVEMENT IN SCHOOL-DESKS.

Specification forming part of Letters Patent No. 152,224, dated June 23, 1674; application filed April 20, 1874.

To all whom t may concern:

Be it known that I, WILLIAM P. GooLMAN, of Kansas City, in the county of Jackson and State of Missouri, have invented certain Improvements in School-Desks, of which the following is a specification:

This invention relates to that class of schooldesks which have a folding top, and are also provided with a folding seat. My improvements consist, rst, in so hanging' the folding top of the desk that it can be supported at diterent inclinations, and in certain peculiarities of construction of the standards and the arms of the folding top where they are connected together; secondly, in the manner of connecting the standards and the wooden strips composing the back of the seat, the inkwell strip, and the book-rack.

In the annexed drawings, Figure l is an end elevation of my improved school-desk. Fig. 2 is a transverse section of the same,

showing` both the seat and top folded. Fig. 3

is a longitudinal section of the same. Figs. 4, 5, and 6 are detail views of various parts.

The same letters ot' reference are used in all the figures in the designation of identical parts.

The standards A are constructed with ribs a upon their interior sides, entering gains al cnt on the ends and at the exterior sides of the strips or bars B of the back, the ink-well strip C, and the boards D D ot' the book-rack. The interior side ot' each standard is faced by a plate, E, the edges of which enter grooves c cut in the strips and boards B G D D', and which are then drawn up toward the standards, so as to firmly clamp the ends of the strips and boards by bolts and nuts E', thus making a very strong connection between the parts mentioned. The folding top F is secured between iianges g of the arms Gr, the flanges embracing the top at the ends to prevent its warping. Each arm has an inwardlyprojecting stud, g, to which one end of the short link H is pivoted, the other end of which is suspended from an outwardly projecting The head of each gage with either one of a series of teeth, g3,

formed on the standards, and thus supporting the top at any desired inclination. The studs g1 project far enough to enter notches g4 in the edges of the standards when the top is turned up, and giving a support at these points take all stra-in from the links. Projections g5 are also formed on the arms to hook onto a cut-away portion ot' the standards, as at g, Fig. l, when the top is folded, to hold it in position, so as to raiseits upper edge above the ink-well strip, and prevent articles thereon from rolling ol'.

The arrangement of these parts is also such that the edge ofthe top shall be slightly above the ink-well strip-when it is raised or turned up.

rEhe slats K of the seat are secured, like the top F, between ilanges of the arms I.

The rods 'i may be used to bind the arms and slats more firmly together. Such tie-rods may also be employed in other parts ofthe desk.

The arms I have inwardly-projecting studs il, which form the journals of the seat, and turn in bearings in the standards, Which bearings they enter from the outside of the standards. Each arm has a rearwardly-projectin g bar, I', arranged sufficiently out ot' line to stand `just inside of the standard, thus preventing the disengagement of the seat by springing it. These bars, in connection with stops 'i2 and i3 on the standards, limit the movement of the seat, and sustain it in a horizontal position. Rubber cushions 'i5 are provided, as usual, to prevent too much noise being made by the seat in turning it up or down.

`What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of the arms G of the folding top F, having fixed pawls g2, links H, and teeth g3 on the standards A, substantially as and for the purpose specified.

2. rIhe combination of the arms G, studs gl, and pawls g2 thereon, with the links H, and the teeth (/3 and notches g4 ott the standards, substantially as and for the purposes specilied.

3. The combination of the arms Gr g5, links H, and standards A, notched at g, substztnl In testmonywhereof Ihswe signed mynitn'le tully as and for the purpose specified. to this specification in the presence of two sub- 4. The strips B of the buck, ink-well strip serbing witnesses.

C, and book-raul; boards D Df, all provided VILLIAM P. GOOLMAN.

with gains a and grooves e, in combination Vtnesses:

with the ribbed standards A a, plates E, and JAMES XV. JONES,

bolts E', substantie-H3v as specified. H. XV. MOCOTTER.

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