US204207A - Improvement in school-desks - Google Patents

Description

J. EDGAR. ASchool-Desk.

No. 204,207. Patented may 28,1878.

NEssES INVENTUB a ATTUBNEYS.

N.PETE.R$.'PHOTo-L|TNOGRAPNER, WASHXNGTON, u C.

UNITED STATES PATENT OFFICE.

JOHN EDGAR, OF NEW BLOOMFIELD, PENNSYLVANIA.

IMPROVEMENT |N scHooL-DES'KS. y

. Specification forming part of Letters Patent N 0. 204,207, dated May 28, 1878; application filed June 11, 1877.

To all whom it may concern.'

Be it known that I, JOHN EDGAR, of New Bloomfield, in the county of Perry and State of Pennsylvania, have invented a new and vImproved School-Desk, of which the following is a specification:

My invention consists, first, in a book-box .pivoted to slides and combined with means 4taken in a vertical plane indicated by dotted line xwin Fig. 3. Fig. 3 is atop view, partly in section. Fig. 4 is a vertical central section, showing the desk adjusted for a large scholar.

Similar letters of reference indicate corresponding parts.

The letter A designates the book-box or desk proper, which is supported by two standards, B B, provided with a horizontal inkplate, a, a xed back, B', and a foot-rest, b, which latter can be adj usted higher or lower and Y set forward or backward by means of holes bl in the standards B B. Holes b are made partly through one standard and entirely through the other, and a shield, b2, is pivoted to the outside of the latter for keeping the foot-rest in its place.

The book-box A is preferably constructed of the angular form shown, and it is pivoted at 'i to two horizontal slides, C C, applied in grooves in standards B, and provided with crescent-shaped grasping-nan ges c. A springlatch, d, is applied to one of the slides C and intended to engage with holes in one end of the box A, arranged so that this box can be adjusted and rigidly held in the positions shown in Fig. l in dotted and full lines, or in the closed position shown in Fig. 2, in Which-latter position the ink-plate a closes the mouth of the box. v

The bottom of the box A is extended, so as' to form a shelf, A', for supporting a book in a convenient position for study. This position is indicated in dottedlines, Fig. 1.

-slotted guide g', and it can be raised l or lowered by adjusting the levers f.

It will be seen that the book-box can be ady justed about its pivots i and inclined at any desired angle; also, that it can be moved for- Ward or backward, and also that its top c can be adj usted vertically.

G designates a seat-back, and H the seat,-

which is pivoted to brackets formed on bars J. These bars J are recessed into the standards B, and connected thereto by pins p passed through vertical slots p', which allow the bars endwise adjustment for the purpose of raising or lowering the seat.

The edges of the bars J have teeth t on them, which are inclined, as shown in Figs. 2 and 4, and adapted to interlock with teeth t on the standards A A, and firmly hold `the seat after it is adjusted.

Havin g thus described my invention, I claim as new and desire to secure by Letters Patentl. The book-box A, pivoted to slides C and provided with a latching device, d, substanl tially as described.

y 2. The box A, providedwith book-rest A',

in combination with the adjustable top e, sub-v stantially as and for the purposespecied.

3. The adjustable top c and its levers f, sectors f l, and catches f2, combined with the book-box A, substantially as described.

JOHN EDGAR.

Witnesses: j

THOMAS H. MELIGAN, WiLLrAM S. MILLIGAN.

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