US248043A - School-desk - Google Patents
School-desk Download PDFInfo
- Publication number
- US248043A US248043A US248043DA US248043A US 248043 A US248043 A US 248043A US 248043D A US248043D A US 248043DA US 248043 A US248043 A US 248043A
- Authority
- US
- United States
- Prior art keywords
- desk
- book
- rest
- movable
- arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241000282472 Canis lupus familiaris Species 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 241000906091 Lethrinus miniatus Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B27/00—Drawing desks or tables; Carriers for drawing-boards
Definitions
- FRANK e. JOHNSON, OE BROOKLYN, NEW YORK.
- A represents the ⁇ body of the desk; B, the stationary or immovable part ofthe desk-top; C, Fig. 1, the folding or movable. portion of the desk-top turned down orin a folding position.
- Fig. 2 shows the movable portion of the desk-top in the position for writin g, which, for convenience, I will call the writing position.
- dotted lines above part G represent the movable portion of the desk-top turned up from its front edge in a position for studying, which I will designate as the study position;7 c representingin dotted lines a book in position to be read or studied.
- Fig. 2 The dotted or broken lines below theI part C, iii full lines, Fig. 2,represent the movable desktop folded, with its frontiedge drawn back to give the student access to the book-box A.
- Fig. 3 shows in full lines the movable desktop in a study position (as it might be placed to accommodate a tall student) somewhat elevated above the usualA study position, as shown by dotted lines, Fig. 2.
- dotted lines in Fig. 4 indicate the mov-a able desk-top in the study position (as it might be placed by a short student) somewhat lowered from the usual study position, as shown in dotted lines at C, Fig. 2.
- This book-rest D is produced as follows, namely: The supporting-arms J of the desk-top C are terminated from the hinge d of the carrying-arms c by a seniiciroular curve extended around and under and upin front ot the back edge of the movable desk-top C, and joined together by a strip of the same curve from one supporting-arm, J, to the other.
- This curve is a section of a'hollow cylinder described by that part of the movable desk-top C which extends toward the student beyond the hinge-points d.
- the capacity of this book-rest D will depend upon the diameter of its curve.
- the curve of the book-rest D is extended downward below and under the movable desk-top C, just below the edge of the same, when it (the desk-top C) is at its greatest elevation as an easel, to prevent paper from dropping down between the desktop C and the bottom of the book-rest D.
- flhe curve of the book-rest D extends upward, to come up iii front of the desk-top C only just flush with its upper surface when itt-the desktop G) rest-'s on the supporting-arms J, to pre- IOO vent any projection ot' the book-rest D above the Lipper surface of the desk-top G.
- a more or less Vshaped book-rest, D is provided, which adapts itself to books ot' different thicknesses.
- the book-rest D being open at the ends admits of sheets of paper, maps, &c., which may be larger than thelength of the book-rest itself'.
- this method ot' producing theeasel .and book-rest in no way depends upon the movement ot' the supportingarms J, for it is as applicable to a stationary deskthat is, t0 a desk in which the supporting-arms J are not movable, the movement of the supporting-arms J being provided for to render the desk folding, to economize space and increase the passage-way between the rows of desks when the desk-tops are not in use.
- the hinges are made suiciently friction-tight to support the movable desk-top C in any desired position.
- I provide a rigid stop or support to the supporting-arms J in the following manner, namely: Upon the lower side ot' the front ends of the supporting-arms J, I provide a suitable curved projection, E, to strike against the dog or stop G.
- This dog or stop G is oval in shape, and constitutes the short arm of a simple lever, of which the long arm is F. Such a lever is provided at both thesupportingarms J. f
- the desk-top C hinged near its front edge to the supporting-arms J, the arms constructed with a curved book-rest, D, so that such front edge may, when the top is elevated, swing down into said rest, and when depressed, such arms to swing out of and cover up said rest, substantially as described.
Landscapes
- Tables And Desks Characterized By Structural Shape (AREA)
Description
P.G.J0HNS0N.
SCHOOL- DESK,
.043. Patentedioct. 11, 18s-1.
mmm Yurln Imi-immun INVENTOR WITNBSSBS:
lJNiTED STATES )PATENT j OEEiCE.. f
FRANK e. JOHNSON, OE BROOKLYN, NEW YORK.
SCHOOL-DESK- SPECIFICATION forming part of Letters Patent No,.'248v,0 43, dated October 11, 1881.
Application filed April 16, 1879.
State of New York, have invented new andk useful Improvements in School and other' .Desksy and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying draw-y ings, making a part of this specication, infv whichv Figures l and 2 represent transverse elevations ot' the invention, and Fig. 3 a partial transverse section.
A represents the` body of the desk; B, the stationary or immovable part ofthe desk-top; C, Fig. 1, the folding or movable. portion of the desk-top turned down orin a folding position. Fig. 2 shows the movable portion of the desk-top in the position for writin g, which, for convenience, I will call the writing position.
The dotted lines above part G, in full lines, Fig. 2, represent the movable portion of the desk-top turned up from its front edge in a position for studying, which I will designate as the study position;7 c representingin dotted lines a book in position to be read or studied.
The dotted or broken lines below theI part C, iii full lines, Fig. 2,represent the movable desktop folded, with its frontiedge drawn back to give the student access to the book-box A. Fig. 3 shows in full lines the movable desktop in a study position (as it might be placed to accommodate a tall student) somewhat elevated above the usualA study position, as shown by dotted lines, Fig. 2.
The dotted lines in Fig. 4 indicate the mov-a able desk-top in the study position (as it might be placed by a short student) somewhat lowered from the usual study position, as shown in dotted lines at C, Fig. 2.
To render it possible toplace the movable 'desk-top in these tive different postions, and
d, are hinged two,holding,arms, c, and to these arms c is securely fastened the movable deskedge, next to the student. the movable desk-top C ishiiiged o'ii both its top C. By these means the'movable edge of i the movable desk-top'next to the student, when vit the desk-top) is resting on themovable supporting-arms J, can be raised and lowered as it its inner edge were hinged to the 'desk at the points e, andv the two holding-arms c, to which the movablefdesk-top Gis firmly fastened, being hinged to theouter ends ofthe movable supporting-arms J, the inner edge (the edge farthest from the student) can be raised and lowered as if it were hinged (as it reallyis) on the back edge, or nearA the` back Hence, iii effect,
front edge and back edge, while the compound movements which result from the combination ot the two above-described movements enables the stiideiitto place the movable desk-top at any desired pointI lof elevation, as well as to give it any required slope, as shown by Figs. l1, 2, and 3. Besides thus converting the top of the desk int-o au easel by raising its front edge 1 toward the student, I also thereby automatically produce and provide a suitable book-rest, D, of such a character that it will lsecurely hold, without the aidof the students hand, anysized book, from the thickness of'a sheet of paper to the largest school-book, however stii and unyielding it may be. This book-rest D is produced as follows, namely: The supporting-arms J of the desk-top C are terminated from the hinge d of the carrying-arms c by a seniiciroular curve extended around and under and upin front ot the back edge of the movable desk-top C, and joined together by a strip of the same curve from one supporting-arm, J, to the other. This curve is a section of a'hollow cylinder described by that part of the movable desk-top C which extends toward the student beyond the hinge-points d. The capacity of this book-rest D will depend upon the diameter of its curve. The curve of the book-rest D is extended downward below and under the movable desk-top C, just below the edge of the same, when it (the desk-top C) is at its greatest elevation as an easel, to prevent paper from dropping down between the desktop C and the bottom of the book-rest D. flhe curve of the book-rest D extends upward, to come up iii front of the desk-top C only just flush with its upper surface when itt-the desktop G) rest-'s on the supporting-arms J, to pre- IOO vent any projection ot' the book-rest D above the Lipper surface of the desk-top G. By this means a more or less Vshaped book-rest, D, is provided, which adapts itself to books ot' different thicknesses. The book-rest D being open at the ends admits of sheets of paper, maps, &c., which may be larger than thelength of the book-rest itself'.
By this means of producing a book-rest for thedesk-top when it (the desk-top) is employed as an easel I do not at all destroy the uniform surface ofthe desk-top or the straight lines of the edges of the same, or project any obstacle in the way of the student, or require any act on the part of the student to place or replace the book-rest, save to simply elevate the desk-top G to provide the easel.
It will be observed that this method ot' producing theeasel .and book-rest in no way depends upon the movement ot' the supportingarms J, for it is as applicable to a stationary deskthat is, t0 a desk in which the supporting-arms J are not movable, the movement of the supporting-arms J being provided for to render the desk folding, to economize space and increase the passage-way between the rows of desks when the desk-tops are not in use.
The hinges, both at e and d, are made suiciently friction-tight to support the movable desk-top C in any desired position.
To firmly secure the movable desk-top C in what I term the writing position,7 as shown in Fig. 2, C, I provide a rigid stop or support to the supporting-arms J in the following manner, namely: Upon the lower side ot' the front ends of the supporting-arms J, I provide a suitable curved projection, E, to strike against the dog or stop G. This dog or stop G is oval in shape, and constitutes the short arm of a simple lever, of which the long arm is F. Such a lever is provided at both thesupportingarms J. f
I do not claim any part of the construction and arrangement ot' the arms by which the desk-top is attached to the frame, or ot' the dogs or stops by which the desk-top is secured in a writing position.
What I claim as my invention, and desire to secure by Letters Patent, is-
In a school-desk, the desk-top C, hinged near its front edge to the supporting-arms J, the arms constructed with a curved book-rest, D, so that such front edge may, when the top is elevated, swing down into said rest, and when depressed, such arms to swing out of and cover up said rest, substantially as described.
f FRANK G. JOHNSON.
Witnesses:
R. H. GALPEN, FRANK CHAMBERS.
Publications (1)
Publication Number | Publication Date |
---|---|
US248043A true US248043A (en) | 1881-10-11 |
Family
ID=2317364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US248043D Expired - Lifetime US248043A (en) | School-desk |
Country Status (1)
Country | Link |
---|---|
US (1) | US248043A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050130550A1 (en) * | 2001-12-20 | 2005-06-16 | Pascal Ponard | Method for making electrodes and vacuum tube using same |
-
0
- US US248043D patent/US248043A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050130550A1 (en) * | 2001-12-20 | 2005-06-16 | Pascal Ponard | Method for making electrodes and vacuum tube using same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1564594A (en) | Bookrest | |
US456089A (en) | Book-support and desk | |
US20100243854A1 (en) | Presentation pad easel | |
US397558A (en) | Adjustable bracket for ink-bottles | |
US1920452A (en) | Desk | |
WO2010046731A1 (en) | Computer desk | |
US248043A (en) | School-desk | |
US3197253A (en) | Folding chair | |
US783973A (en) | Drawing-board. | |
US3133510A (en) | Picture frame table | |
US2973028A (en) | Desk or table attachment for folding chairs | |
US1051047A (en) | Book-holder. | |
US251337A (en) | burrows | |
US2206004A (en) | Typewriter table | |
US1759178A (en) | Desk table | |
US1792993A (en) | Study table | |
US183323A (en) | Improvement in desk attachments for chairs | |
US1925771A (en) | Convertible desk | |
US509101A (en) | Wall-desk | |
US749640A (en) | Combined school seat and desk | |
US1377767A (en) | falls | |
US248477A (en) | Rudolph kreter | |
US2650568A (en) | Copyholder for typists | |
US1039979A (en) | Stenographer's desk. | |
US1385432A (en) | Combined school desk and chair |