US284334A

US284334A - X w william schgnheydeb

Info

Publication number: US284334A
Authority: US
Publication date: 1883-09-04
Anticipated expiration: 1900-09-04

Description

(No Model.) I

N. W. SGHONHEYDER.

DBVIGE FOR FASTENING DRAWING PAPER T0 DRAWING BOARDS. No. 284,334.

Patented Sept. 4, 1883.

UNITED STATES ATENT OFFICE.

' TWILLIAM SOHGNHEYDER, OF SHEPHERDS BUSII, LONDON, ENGLAND.

DEVICE FOR FASTENING DRAWING-PAPER T DRAWING-BOARDS.

I SPECIFICATION forming part of Letters Patent No. 284,334, dated September 4, 1883.

Application filed Fehruaryu, 1883. (No model.)

To all whom 732'; may concern:

' Be it known that I, WILLIAM ScHoNHEY- DER, a native of Denmark, residing at Shepherds Bush, London, England, have invented a new and useful Device for Fastening Drawing-Paper to Drawing-Boards, or i'or other similar purposes, such as securing thin metal plates to boards.

The following is a specification of my invention. I

The object of my invention is to enable a sheet of paper to be secured to a drawing-board without the use of the usual pins, and thus to avoid puncturing it, while facilitating holding it to and releasing it from the board, and, furthermore, to enable a sheet to bereplaced upon the board in the same position with relation to the board that it occupied previous to its removal therefrom. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a planyiew of one corner of a drawing-board with my device inserted in the board. Fig. 2 is a view from point D, Fig. 1,

with the drawing-board shown in section.

Fig. 3 is a view on the line D D in Fig. 1, the drawing-board being shown in section. Fig. 4 is a view of the clip separated from all the other parts, and Fig. 5 is a top and edge view of the spring.

Similar letters refer to similar parts through out theseveralviews. The drawing-board is recessed at the corner to admit the clip 0 and the cornerof the drawing-paper, and it is also recessed at the bottom or underneath side to receive the spring 9 and give room for its motion. Clip 0 is pro vided with two legs, e, which pass through holes in the drawing-board. Each of the legs e is provided with two slots, f, through which the ends of the spring 9 pass, these ends also being "provided with a slot. The spring 9 abuts against the drawing-board at h, the recess in the board being shallow at h and deepened toward each end to give room for themotion of the spring. The tension of the spring obviously pulls the clip 0 down into its re cess in the board, and causes it to grip the corner ofthe drawing-paper S, which is inserted under the clip. By pressing the plate P with thefingers the clip 0 is raised against the pressure of spring and the paper isreleased and may be removed. The operation therefore is to press the plate P upward with the fingers, thus raising clip 0 to admit the paper, and upon releasing P from the finger-pressure cap Gis pulled down upon the paper S by the force of spring 9. To enable the sheet of paper to be "reinserted and set in the same position after having been removed, a line, Z, is marked on the face of O, a coincident line being marked on the sheet of paper.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a drawing-board, the clip (l, having two or more legs or projections, 6, adapted to receive the pressure of a spring or springs, g, substantially as and for the purpose specified.

2. The clip 0, havingprojections 0, provided with slots f, in combination with a spring, 9,

and plate 1 substantially as and for the pur-' Witnesses:

J. EDw. BEEsLEY, J. S. PURRY,

Both of 2 Popes Head Alley, Oomhill, London,

Gentn. n b