US1372810A

US1372810A - Drawing board and stand

Info

Publication number: US1372810A
Application number: US343688A
Authority: US
Inventors: Michael F Haberle
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-12-09
Filing date: 1919-12-09
Publication date: 1921-03-29
Anticipated expiration: 1938-03-29

Description

WI. F. HBEIIIIE.

DRAWING BOARD MID STAND.

sgpI-@D APPLICATION FILED DEC. 9, i919. 299 4 SHEETS-SHEEI l.

N S MF #d66/@A Wi. F. HBERLE.

DRAWING BOARD AND STAND.

APPLICATION FILED DEc.9. 1919.

4 SHEETS-SHE] 2- M. F. HBERLE.

DRAWING BOARD AND STAND.

APPLICATION man mac. si, 1919.

l ,ag/@98 @n Pafmm Mam 29, N21i..

4 SHEETS-SHEET 3- IVI. F. HBERLE.

DRAWING BOARD AND STAND.

APPLICAUUN FILED DEC. 9. 1919.

l 72981@ Patented Mar. 29, i921.

4 SHEETS-SHEET 4.

STATES MICHAEL F. HBERLE, OF W'OODHAVEN, NEW YORK.

DRAWNG BOARD AND STAND.

Application filed lDecemoer 9, 1919.

To @ZZ whom it may concern Be it known that l, MICHAEL Ellllinnnnn, citizen ot the United States, residing at Viroodhaven, in the county ot Queens and State of New York, have invented certain new and useful improvements in Drawing Boards and Stands. ot which the following is a specification,

rllhis invention relates to an improved drawing board and stand and has as one ot its principal objects to provide an arrangement wherein the drawing board will be constructed to carry a supply roll and wherein the drawing paper may be shi'lted across the board from said roll.

il. further object of the invention in this connection is to provide a construction wherein drawing paper will be held taut across the board so as to eliminate the necessity 'for the use of thumb tacks.

A still 'further object ot the invention is to provide a drawing board having a bed plate or board proper which will not warp and wherein said plate may, as occasion may demand, be readily renewed.

A still further object of the invention is to provide a construction wherein the board may be adjustably tilted and may also be adjustably rotated.

And the invention has as a still further object to provide an arrangement wherein the eiliective height ot the stand may be adjustably varied 'tor either raising or lowering the board.

@ther and incidental objects will appear hereinafter.

ln the drawings:

Figure l. is a perspective view ot my improved drawing board and stand,

Fig. 2 is a longitudinal sectional view, the board being shown in position lying dat upon the stand, Y

Fig. '3 is a transversesectional view taken medially through the board and stand,

llig. l is a perspective view illustrating the board and associated parts in detail,

Fig. 5 is a transverse section taken on the line 5-5 of Fig. l, and

Fig. 6 is a Jfragmentary perspective view illustrating the plates carried by certain ot the legs ot the stand whereby the eliective height of the stand may be adjustably varied.

ln carrying the invention into eitect, l employ a stand which is constructed ot end sections l0 and side sections ll. Each of the Specification of Letters Patent.

Patented llllaiz 22, 192i.

serial no. aliases;

end sections includes pair of legs joined by spaced rails and, in like manner, each ot the side sections also includes a pair ot legs joined by spaced rails. Countersunk in the legs oitx the side sections are, as particularly shown in Fig, 6, vertical plates l2 from the upper end portions ot which project studs 13 and secured to the legs of the end sections are angle plates le in each of which is formed a series of openings l5. rlhe openings 15 oi' the alates 11i are adapted to selectively receive the studs 13 and formed through the angle plates are vertical slots l@ adapted to freely receive clamping screws 17 therethrough, these clamping screws being threaded through the lower end portions oi' the plates l2. rfhus, as will be perceived, the studs 13 orp the end sections may be selectively engaged in the series oi openings 5 olE the plates ll ot the side sections for adjustably elevating the side sections, as shown in Fig. l, upon the end sections, when the clamping screws .1 7 may be tightened for securing the side sections in elevated position. ln this way, 'the effective height ot the stand may be adjustably varied.

The drawing board employed includes a trame comprising side rails 18 and end rails i9, a mullion 2O extending transversely hetween the side rails at a point substantially midway between the end rails. Suitably secured to the end rails are channel strips which, for convenience, have been indicated at 2l and 22 respectively. Secured to tie side rails ot the trarne are longitudinal cleats 23 provided with beveled inner enges and overlying the traine to entend between the channel strips thereofY is the bed plate 2st of the board. This bed plate is 'provided with beveled side edges mating with the beveled inner edges ot the cleats so that the plate is thus firmly held in position upon the trame. Screws or other suitable fastening devices are employed tor securing the cleats so that, as will be seen, by removing either of the cleats the plate may be readily removed, this construction providing an arrangement whereby the plate may be renewed from time to time as occasion may demand. rlhe plate is preferably constructed of what is generally known as composition' board although other approved material may be employed. However, in providing a plate of the character indicated, said plate will not warp.

ln the strip 2l is formed a vertical slot 25 to freely receive the vertical flange of a clamping plate 26, so that the horizontal flange of said plate will, as particularly shown in Fig. 2, overhang the channel of the strip. lepending from the clamping plate adjacent opposite ends thereof are studs 27 which are freely received through the strip and through suitable wear plates 28 connected thereto, and threaded upon the studs are suitable wing nuts 29 confronting the wear plates. As will be observed upon referencefto Fig. 4, the upper end portions of the studs extend over the horizontal fiange of the clamping plate7 providing a reinforcement therefor. Secured to the ends of the channel strip 22 are bearing plates which, for convenience, have been indicated at 30 and 31 respectively. These bearing plates are provided at their inner sides with laterally directed arcuate stop flanges 32 lying within the channel of the strip and, as will be observed, the end portions of said flanges at the upper side of the channel are rounded off. (lournaled upon the bearing plates to lie within the channel of said strip is a talreup roller 33 extending axially between said fianges. At one end the roller is equipped with a ferrule 34 journaled through the plate 30 whilefat its opposite end, said roller is equipped with ferrule 35 from which projects a suitable trunnion journaled through the` plate 3l. Fixed upon said trunnion at the outer side of the plate is a ratchet disk 36 and pivoted upon. the plate to cooperate with said disk is a pawl 3'?. Seated against the disk 36 is a winged turning' head 38 also suitably fixed to the trunnion of the ferrule 35 so that by turning said head the roller 33 may be rotated. Formed in said roller at one side thereof is a longitudinally extending channel 39 and normally engaged in this channel is the vertical flange of a substantially T- shaped locking" strip 40. At the mouth of the slot 39 the roller is flattened to seat the horizontal ange of the locking strip and, as will now be observed, this latter flange extends beyond the ends of the vertical flange of the strip to overlie the ferrules 3ft and 85 of the roller. ln use, a supply roll of drawing paper is placed within the channel of the strip 21. the paper strip il being wound about a suitable core 4:2. By removing the clamping plate 26 the supply roll may, of course, be readily fitted in position and, as will be observed, by adjusting` the wing nuts 29, the plate may be caused to bear against the roll for tensioning the roll within the channel of the strip. At its free end, the paper strip is led across the slot 89 in the take-up roller when the locking strip 40 is, as shown in Fig. 5, fitted in position upon the roller for connecting the strip thereto. Then., by turning the roller, the

end portions of the strip will be moved into coacting relation with the stop flanges 32 so that the strip will, while the first complete turn of the roller is made, be held upon the roller by said flange, the end portions of the strip riding upon the flanges and being held thereby flat against the ferrules of the roller. After the first complete turn of the roller is rnade7 the paper strip will then overlie the locking strip so that the locking strip cannot then become dislodged from the roller. Accordingly, as will be seen, the turning head 38 may be operated to wind the paper strip from the supply rollr across the bed plate of the drawing board onto the take-up roll and since the clamping plate 26 will retard unwirfding of the supply roll while the ratchet disk 36 and pawl 37 will prevent counter-rotation of the take-up roll? the strip will be held taut lying flat against the bed plate. Accordingly7 any necessity for the use of thumb tacks will be elimi- 'nated while the paper strip may be readily shifted to present, as desired, a'clean or unused surface over the bed plate of the board.

Removably rested upon the stand is a supporting frame for the drawing board. This frame includes a lower frame section 4.3 and a mating upper frame section 44. The frame section 43 is constructed to mate with the top rails of the stand and is provided with depending side strips 45 adapted to coact with the outer faces of said rails so that said section will firmly seat upon the the stand. At the forward side of the supporting frame, the sections thereof are swingingly joined by suitable hinges con nected to the forward side rails of said sections so that, as shown in Fig.v l, the upper section may be tilted upwardly and forwardly upon the lower section and to prevent possible accidental raising' of the rear side portion of the lower section, the rail of this section carries a hool'tG engageable in an eye 47 upon the upper rail of the'rear side section of the stand. Extending between` the side rails of the lower section 43 are spaced transverse mullions 48 in the upperV edges of which are formed, at the rear end portions of the mullions, series of notches 49. The upper frame section carries a longitudinal mullion 50 and swingingly mounted upon this mullion is a prop 51, the spaced legs of which are adapted to coact at their free ends with the series of notches 49. Countersunk in the mullion 20 of the frame of the drawing board is a plate 52 to which is fixed a post 53 depending from the plate and rotatably engaged through the mullion 50 of the upper frame section 44:. Threaded upon the lower end portion of the post is a wing nut 54 and surrounding said post is a helical spring 55 held between washers 56. rlhus9 the post 53 will rotatably connect the drawing board with its supporting frame while the wing nut 54 may be adjusted for tensioning the spring 55 so that the uppermost of the washers 56 will be held in binding contact with the lower 'face of the mullion for frictionally resisting rotation of the board. Consequently, the board may, as suggested in Fig. l, be rotatably positioned as desired when the board will be firmly held in such position, and by swinging the frame section lil upwardly upon the .trame section 43, the drawing board may be adjustably elevated when the prop 5l will coact with the series ot notches 49 in the mullion 4:8 of the lower trame section Jfor sustaining the board in inclined position. It will accordingly be seen that I have provided a particularly effective construction for the purpose set forth. rIhe drawing board may, if desired, be readily detached from its supporting frame while the board, together with said frame, may be bodily removed from the stand. Further, as will be clear, the stand may be easily collapsed so that when not in use the drawing board and stand may be arranged to occupy a minimum space.

Having thus described the invention, what is claimed as new is:

l. In a device oi' the character described, a drawing board provided at one end with a channel for receiving a supply roll ot paper, a plate adjustable vertically in said end ot' the drawing board and having an overhanging portion to bear upon the supply roll within said channel whereby to tension the unwinding oir' a paper strip from the roll, and a take-up roller journaled upon the opposite end ot' the board and rotatable for winding the strip thereon ex tending across the board from the supply roll.

2. In a device ot the character described, a drawing board having a chanel formed in one portion thereof to receive a roll of paper, a clamping plate having an overhanging portion to bear upon the roll of paper, studs depending :trom said plate through the board, nuts adjustableupon said studs against the board to clamp the plate upon the roll ot paper whereby to tension the unwinding oit a strip from the roll, and a take-up roller journaled upon the board and rotatable for winding a strip thereon extending across the board from the supply roll.

3. In a device of the character described,

a drawing board, means for supporting a supply roll of paper thereon, a take-up roller journaled upon the board and rotatable or winding a strip thereon extending across the board from the supply roll, means for connecting the paper strip with the take-up roller and freely removable from the roller, and stationary means on the board arranged to coact with said first mentioned means ior holding said first mentioned means against displacement from the the roller when the roller is rotated.

' et. In a device of the character described, a drawing board, means for supporting a supply roll of paper thereon, stationary bearing' plates carried by the board, a take-up roller journaled in and extending between said plates and provided with a longitudinal slot, a locking strip freely en gageable in said slot for binding a paper strip therein, and means carried by the bearing plates to coact with said strip for holding the strip against displacement from the roller when the roller is rotated.

5. In a device of the character described,

a drawing board, means for supporting a lsupply roll of paper thereon, bearing plates carried by the board, a take-up roller journaled in and extending between said plates and provided with a longitudinal slot, a locking strip freely engageable in said slot for binding a paper strip therein, and arcuate flanges carried by said bearing plates to coact with the strip for holding the strip against displacement from the roller when the roller is rotated.

6. In a device of the character described, in combination, a stand, a supporting frame resting thereon, a drawing board resting on the frame, a post depending from the board and rotatable in lthe frame, washers on the bolt below the frame, a spring coiled around the post between the washers, means for adjusting the tension of the spring, and means carried by the `trame tor adjustably tilting the board.

In testimony whereof I affix my signature.

MICHAEL Ii. IIBERLE. [ne]