US635584A

US635584A - School seat and desk.

Info

Publication number: US635584A
Application number: US66528198A
Authority: US
Inventors: Seymour W Peregrine
Original assignee: CHARLES J REED
Current assignee: CHARLES J REED
Priority date: 1898-01-03
Filing date: 1898-01-03
Publication date: 1899-10-24
Anticipated expiration: 1916-10-24

Description

No. 635,584. Patented Oct. 24, I899.

' 8 W. PEREGRINE.

SCHOOL SEAT AND DESK.

(Application filed Jan. 3, 1898.)

(No Model.)

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' Patented Oct. 24, I899. S. W. PEBEGRINE.

SCHOOL SEAT AND DESK;

(Application filed Jan. 3, 1898.) (No Model.)

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SEYMOUR IV. PEREGRINE, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO CHARLES J. REED, OF NEW YORK, N. Y.

SCHOOL SEAT AND DESK.

SPECIFICATION forming part of Letters Patent No. 635,584, dated October 24, 1899.

Application filed January 3, 1898. Serial No. 665,281. (No model.)

To ctZZ- whom it may concern:

Be it known that I, SEYMOUR W. PERE- GRIN E, a citizen of the United States, residing at the city of Grand Rapids, in the county of Kent and State of Michigan, have invented certain new anduseful Improvements in School Seats and Desks, of which the following is a specification.

This invention relates to certain new and useful improvements in school seats and desks having the seat and desk substantially vertically adjustable upon a stationary stand- .ard 5 and the objects of the invention are, first, to adjust the seat and desk independently by means of the same adjusting mechanism, which mechanism is adapted to raise. and lower the seat when shifted in one direction and to raise and lower the desk when shifted in the opposite direction; second, to adapt the seat and desk to be adjusted independently, so that either the seat or desk may be adjusted without disturbing the occupant; third, to furnish a simple and efficient adjustment for adjusting the seat and desk independently, and, fourth, other objects p'ar ticularly described and pointed out in the specification and claims. These objects I accomplish by means of the mechanism illustrated in the accompanying drawings, in which- Figure 1 shows a perspective View of the seat and desk complete. Fig. 2 shows in perspective the seat, the standard, and the desk separated, and also shows the clamping-rod which attaches the desk to the standard. Fig. 3 shows a plan View of the adjusting mechanism with a section of the seat-back, the

dotted lines showing the position of the adj usting-rod and its connections when shifted to operate upon the desk. Fig. 4 shows a rear elevation of the adjusting mechanism. Fig. 5 shows an end view of the adjusting mechanism. Fig. 6 shows a modified form of the ad j usting-lever when constructed so as to throw the adjusting mechanism into engagement either with the front or rear object, opcrating the same from one side of the desk. Fig. 7 is a central longitudinal section of a desk and seat made in accordance with my invention.

Similar numerals refer to similar parts throughout the several views.

1 1 show the standards, which are usually constructed of cast-iron, but may be of any other suitable material.

2 shows the seat proper, and 3 shows the seat back. The seat and back may be constructed in any suitable manner.

4 shows the top of the desk.

5 5 show the desk-guide, which is adapted to slide in guides or grooves shown by 6.

In Fig. 3 the numerals 8 and 9 indicate two half-nuts, Figs. 1 and 2 being on such a scale as to show said parts less clearly. The halfnut 8 is attached to the desk-guides, and 9 is attached to the seat-back.

11 11 show adjusting screw-rods, which are shifted at will so as to engage either with the half-nuts 8 or the half-nuts 9.

13 13 are gears, one on each of the adjust ing-rods 11.

14 14 are gears rigid with the shaft 17.

15 15 are horizontal slots in the desk adapted to receive the clamping-rod 22, said rod 22 passing through the slots and the slots allowin g a horizontal adjustment in order to retain the desk in proper relationship to the seatback 3. v

16 is a device for retaining and limiting the swinging motion of the lever 19, said lever 19 being attached to the support of the adj usting-shaft 17 and also adjusting-rods 11 11. The part designated 16 is a quadrant, and the lever 19 rests against its face and is adapted to move along the same. The quadrant is provided with two retaining-notches, Fig. 5, one at each end, with which the lever 19 engages,said notches limiting its stroke or swing.

18 is a notch in the end of the shaft 17, adapted to engage with a suitable wrench or other means used in turning the shaft 17, together with the rigid gears 14 14, which operate through the gears 13 13 the adjusting screw-rods 11 11. Instead of using the notch 18 the end of the shaft may be constructedin any suitable form to engage with the wrench or other device suitable for operating the same.

20 20 are the fulcrum-pivots for the lever 19 in my preferred form. In the modified form shown in Fig. 6 the rod 7 is supportedin a suitable bearing on the standard and serves as the fulcrum for operating the shifting mechanism.

21 shows the point of attachment between the lever 19 and the shaft-support 26.

22 shows a clamping-rod adapted to pass through the slots 15 15 and secured in position by means of any suitable nut or other means for the purpose of retaining the desk in position and allowing its horizontal adjustment.

23 is a slot in the standard, with which the clamping-rod 22 engages.

25 25 are slots in the seat-frame, through which pass bolts securing the seat to the standard and which allow for the vertical adjustment of the seat independent of the standard.

27 is a clamping-rod which passes through the slots 25.

28 is a foot-guard secured to the standard and constructed in the ordinary manner.

29 is the seat-bracket which supports the seat proper.

30 is an opening in the standard, through which the adjusting-shaft 17 passes.

31 is a slot in the standard, through which the end of the shaft-support 26 passes and in which it is adapted to move. The shaft 17, being retained in position in the elongated slot 30 by this adjustment, is adapted to all kinds of combined seats and desks in which the seat and desk are adjusted separately.

The operation of my invention is as follows: Then the lever 19 is shifted into the position shown in Fig. 1, the adjusting screw-rods 11 11 are in engagement with the half-nuts 9 9, as shown in Fig. 3. By revolving the shaft 17 to the right the screw-rods 11 11 operate to raise the seat. By reversingthe motion of the shaft 17 the movement of the screw-rods 11 11 is reversed and the seat is lowered. The raising and lowering of the seat do not in any way affect the desk, which remains stationary. In order to adjust the desk, the lever 19 is thrown in the opposite direction, which will shift the shaft 17 and its gears 16, together with the screw-rods 11 l1 and their attached gears, as shown in Figs. 3 and 5, whereby to cause the said screw-rods ll 11 to engage with the half-nuts S 8, and said halfnuts being rigidly connected to the deskguides by revolving the shaft 17 in one direction the desk is raised, and by reversing the motion of the shaft 17 the desk is lowered. The adjustment of the desk either upor down does not in any way affect the movement of the seat. By this construction the same adjusting device, by merely shifting it fromits engagement with the desk, operates the desk, and by shifting it into engagement with the seat operates the seat, thereby greatly simplifying the construction and operation of the parts necessary to adjusting the seat and desk independently of each other.

Having thus described my invention, what I claim to have invented, and desire to secure by Letters Patent, is-

1. In a combined school seat and desk, the combination with the standard adapted to support the seat and desk, a seat adjustablysupported by the standard, a desk adjustably supported by the standard, suitable adjusting mechanism adapted to raise and lower the seat when shifted into engagement therewith, and to raise and lower the desk when shifted into engagement with said desk and suitable means for shifting said mechanism, said seat and desk being adjustable independently of each other.

2. The combination of the standard, the seat, the desk, said seat and desk being adjustably attached to the standard, a shaft provided with gears,screw-adjusting rods also provided with gears engaging with the gears upon the shaft, and suitable mechanism for shifting the shaft, gears and adjusting-rods into operative connection with the seat for the purpose of. adjusting the seat Vertically, and

for shifting them from operative connectionwith the seat to operative connection with the desk for the purpose of adjusting the desk separately, substantially as described.

3. In a school-seat, the combination with the standard, of a shaft extending transversely across the standard, gears rigidly connected with said shaft, shiftable screw-rods provided with gears cooperating with gears on the shaft and also with suitable mechanism upon the seat and desk respectively for the purpose of raising and lowering either the desk or seat and means for shifting said screw-rods, substantially as described.

t. In combination with the standard, a seat and desk adj ustably connected thereto,a shaft extending transversely the seat and desk, gears upon said shaft, adjusting screw-threaded rods having gears engaging with the gears on the shaft, half-nuts upon the seat, and half nuts upon the standard, and suitable means for shifting said adjusting screw-rods into engagement either with the half-nuts upon the seat or the half-nuts upon the desk, substantially as and for the purpose described.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

SEYMOUR W. PEREGRINE.

WVitn esses:

EDWARD TAYGART, CHRISTOPHER HONDELINK.