US1683443A - Mount for drawing tables and the like - Google Patents

Description

Sept; 4, 1928..y

` E. J. BRASSEUB acum' PoR DRAWING TABLES AND LIKE .Filed March 19, 1924 2r Sheets-Sheet 1 R Y nm w m m V O wm Nw wm. QN wm, m W F A .NN MN Nm' WN NN a hun r Vw- VP- iiiw Sept. 4, 1928,

E. J. BRASSEUR MOUNT FOR DRAWING TABLES AND THE LIKE Filed March 19, 19224 2 Sheets-Sheet i 5M I A a i l i IN V ENTOR A TTOR NE Y Patented Sept. 4, 1928.

UNITED STATES PATENT OFFICE.

ERNEST e'. BRASSEUR, OF CHICAGO, ILLINOIS, ASSICrNOB.v TO A. B. DICK. COMPANY, OF CHICAGO, ILLINCHS,` A CORPORATION OF ILLINOIS.

MOUNT FOR DRAWING TABIAES AND THELIKE.

Application tiled March 19, 1924.

This invention :felates to a mount for drawing tables, or the-like, and more particularly relates to a device adapted to present and hold a work supporting structure, such as a drawing table, or the like, in a. conveniently tilted position desired, to facilitate the execution of the work; and the principal object of my invention is to provide such a device.

The mount is especially' well suited for a drawing and tracing table of a well known construction, designed primarily for use in preparing stencils for stencil duplicating machines.Y Such construction comprises a standard having at its upper end a box-like member in the shape ot an inverted, truncated, pyramid, the larger tree end or base of which carries a frame in which is supported a transparent or translucent sheet .of glass held in a framework which also carries a sheet of Celluloid or other medium ot a fiexible and transparent or translucent character. and a pattern sheet is usually interposed between the supporting sheet ot glass and the superimposed sheet. ot Celluloid. A sheetI ot waxed paper or other suitable stencil material is then placed upon the flexible sheet. and the user cuts the stencil sheet with a st vlus. tracing the lines of the. pattern.

It is customary for such apparatus to he provided with means situated within the truncated member. usually near its base. serving to illuminate the pattern and stencil sheet b v'liglit transmitted through the supporting sheets of glass and celluloid, and the standard member or hase of such apparatus ordinarily consists ot a. tripod or other conventional arrangement of legs connected rigidly with the standard and designed to be set. in a single upright position upon the door or other support.

An important object ot the present invention is to provide an auxiliary. separately formed base. or mount. adapted to receive the leas ot such a drawing and tracing table in such a manner as to permit the. structure to he tilted at any desired angle suitable and convenient for the execution ot' work. this mount or auxiliary base. having also means to hold the table. or like device, in adjusted tilted position.

Another object ot the invention is to provide means` by which the holding means can he readily operated. preferably h v the movement of the users foot, so that. the user can Serial No. 700,235.

tilt the supported apparatus manually to any position best suited to the work in hand, and can secure the `attaching device in its new position without any necessity for leaving the seat or other place of operation.

Still another object of the invention is to construct such a mount or auxiliary base in the form of a unitary organized structure, seit-contained, and which can be attached to, and removed from. the apparatus which it supports, and which will be interchangeable for use with any of a series of standard tracing devices of the class for use with which it is intended.

Other objects of my invention will be in part obvious' and in part pointed out hereinafter.

The various features of this invention will be illustrated and described fully in the accompanying drawings and specification and pointed out in the claims.

In the drawings Fig. 1 is a view in Side elevation of an appliance for supporting tracing apparatus, constructed in accordance/ with this invention, and shown with a tracing-desk held in adjusted position thereon. 2 is a plan view of the appliance shown in Fig. 1` isolated. except for small portions et the apparatus to bc supported, these portions heing indicated in horizontal section. Fig. 3 is a vertical section on the line 3-3 ot Fig. 2. Fig. 4 is a view in transverse section on the diagonal line 4 4 of Fig. 1. Fig. 5 is a fragmentary. horizontal section on the diagonal line 5-5 of Fig. 1.

In the embodiment of my invention selected for illustration and description to permit ready and complete understanding of my improvements. the part designated by the reference numeral 1 is an apparatus in the nature of a tracing-desk, in which the object to be traced and the stencil or other medium on which the tracing is to be made are supported upon a tracing-table 2, the structure ot which may be of conventional character, or of any suitable form. and need not be described herein, except to state briefly that the part. designated by the reference numeral 3 is the usual box in the form of an inverted truncated pyramid having an electric lamp at 4 to illuminate the Work, being supplied with electric current by a conductor 5. which leads upward through the standard 1, and the latter is shown as mounted upon a base 6 the latter being a tripod with legs 7 of conventional form.

This form f apparatus usually is constructed to be set upon the floor or other support in an upright position, and in carrying out an important object of my present invention, I have provided means to support such apparatus firmly in a position tilted bodily at the angle which may at any time be most convenient to the operator in performing the operation of tracing.

or t-he above purpose, as a convenient form of means, I have shown an auxiliary base 10 comprising a frame formed of suitable metal, such as cast iron, of any shape and dimensions suited to the particular apparatus for use with which the auxiliary base is intended.

In the instance illustrated, the body portion is of triangular contour, and 1n the apices at the base of the triangle, I have provided recessed seats 11 to receive the feet 8 of two legs 7 of the tripod. The latter may be tilted upon these seats into the position shown in Fig. 1, or into any suitable angular position relatively to the auxiliary base, and as means to prevent the feet 8 from sliding out of the seats 11 Whenl so tilted, I have shown central upward projections 12 which register with grooves 9 in the legs (see Fig. 3) and I provide, preferably, outer guards or winglike-members 13 for the same purpose, and to afford a pleasing finish, these members 13 also serving to prevent accidental contact with the tripod feet 8 which might tend to displace the same from their seats.

As one form of suitable means to hold the tracing-desk in its adjusted tilted position, I have shown at 14 an elongated member mounted pivotally upon an axis 15 Carried by a lug 16 formed on the auxiliary base at a region of the body portion extending forward as shown, and this swinging holdingmember is shown as having a longitudinal slot 17 and is further provided with a'plate 18 riveted thereto at 19 and having a series of notches 20, which form offset extensions of the slot.

'I'o co-operate with this notched plate, I have shown the leg 21 of the tripod as provided With a collar 22 surrounding the leg and having a yoke 23 operated by a bolt 24 into engagement with the webs of the leg 21, and exerting a clamping action sufiiciently to hold the collar in adjusted position as indicated. This collar has also a projection 25 taking the form, in the instance illustrated, of a post screwed at 26 into the material of the collar, and projecting into the path of the swinging member 14, so that it passes through the slot 17, and its shank 27 may enter one of the notches 20 Which at any time registers therewith.

To maintain these parts in a co-operating position, suitable means may be provided,

such as a spring 28, which connects at one end with a pin 29 upon the member 14, and at its other end connects with a similar pin 30 carriedby a lug 31 extending upward from the auxiliary base.

As means to control the movements of the member 14, I have shown a foot-lever 32 extending from a position convenient for op- A grasp the table 2 and tilt the apparatus 1 into' any desired position, the co-operating members 14 and 27 working into a new position according to the degree. of tilting, and the spring 28 operating to swing the holdingmember 14 back into a holding position similar to that illustrated in -F ig. l.

I prefer to provide the auxiliary base with a rearward extension 34 for the sake of stability, and in order that the base may be readily moved into any desired position, I have provided a three point castor bearing, as indicated by the reference numerals 35, a fourth castor 36 being provided at a region removed considerably from the three point bearing, this fourth castor being mounted upon a carriage 37 hinged at 38 to the forward portion of the frame, where it may be secured in adjusted position by a thumb-nut 39 which has a collar 41 formed upon its bolt 42 in such a fashion that the carriage 37 and its connected parts may be adjusted to, and removed from, the auxiliary base, without the use of any tools.

Having illustrated and described my invention thus fully, and suitable means by which the same may be carried into effect, it is to be understood that I do not limit myself to the structural forms and materials selected for illustration and description, nor in general do I limit myself otherwise than as set forth in the claim read in connection with this specification.

What I claim as new, and desire to secure by Letters Patent is 1. A mount for apparatus of the class described, having supporting legs, said mount including a base and seats to receive a plurality of said legs tiltingly, and a holdingdevice mounted on said base and having means to be secured adjustably to another of said legs, to hold said apparatus in different tilted positions relatively to said base.

2. A mount for apparatus of the class described, having at least three supporting legs, said mount including a base and seats to receive a pluralityI of said legs tiltingly, and a holding-device mounted on said base and having means to be secured adj ustably to anlli) llt

other of said legs, to hold said apparatus in gi'erent tilted positions relatively to said ase.

3. A mount for apparatus of the class de scribed, having at least three supporting legs, said mount including a base and seats to receive two of said legs tiltingly, and a holdingdevice mounted on said base and having means to be secured adj ustably to another of said legs, to hold said apparatus in different tilted positions relative to said base.

4. An auxiliary-base for apparatus of the class having supporting legs, said auxiliarybase comprising a frame having spaced seats to receive and support tiltingly a plurality of said legs, and having means to be secured removably to another of said legs, to hold said apparatus in adjusted position tilted bodily relatively to said auxiliary base.

5. An auxiliary-base for apparatus of the class having supporting legs, said auxiliarybase comprising a frame having spaced seats to receive and support tiltingly a plurality of said legs, and having a strut mounted pivotallyy thereon, and a member to be secured to another of said legs, and to be engaged with said strut at different regions, and retained in adjusted connective relation therewith, to hold said apparatus in any of a plurality of angular positions tilted bodily relatively to said auxiliary-base.

6. An auxiliary base for apparatus of the class having supporting legs, said auxiliary base comprising a frame having a body-portion with laterally spaced seats to receive and support tiltingly two of said legs, said body-portion having extensions forward and rearward of the region of said seats, said forward extension being provided with a holding device to be secured to another of said legs to hold said apparatus in position tilted rearwardly over the region of said seats, and said rearward extension serving to prevent rearward tilting of said auxiliary base and said apparatus relatively to a floor or like support.

7. An auxiliary base for supporting in bodily tilted position apparatus of the class having three supporting legs, said auxiliary base having spaced recessed seats respectively provided with central projections, and with peripheral walls, to permit a limited tilting movement ot said legs upon said seats; and a collar to be mounted adjustably upon the third leg, with clamping means to secure said collar in adjusted position; said auxiliary base having also an elongated member mounted swingingly thereon in position to extend upward past said collar, said swinging member having a longitudinal slot, with oflset notches to receive a projection upon said collar; and means to control the relative movements of said swinging member and collar; and to maintain said members in adjusted relative position.

8. A mount for apparatus of the class described, having supporting legs, said mount including a base and seats to receive a plurality of said legs tiltingly, and a holdingdevice mounted on said base and having means to be secured adjustably to another of said legs, to hold said apparatus in different tilted positions relatively to said base, and means to adjust said holding device manually to adjust the tilt of the apparatus on the base.

9. A mount for apparatus of the class described, having supporting legs, said mount including a base and seats to receive a plurality of legs tiltingly, and a notched member pivoted on the base and adjustably engageable with a projection secured to one of said supporting legs, whereby said apparatus may be held in different tilted positions on said base.

10. A mount for apparatus of the class described, having supporting legs, said mount including a base and seats to receive a plurality of legs tiltingly, and a notched member pivoted on the base and adjustably engageable with a projection secured to one of said supporting legs, whereby said apparatus may be held in different tilted positions on said base, and foot mechanism for disengaging said notched member from said projection to permit adjustment of the apparatus on the base.

11. A mount for apparatus of the class described, having supporting legs, said mount having seats to receive a plurality of said legs tiltingly, and a holding device adapted to be secured adjustably to another of said legs whereby the apparatus may be adjusted and held in different tilted positions on the mount, said mount including a body portion having a three-point under-bearing and a fourth under-bearing spaced widely from said three points and adjustable vertically on the mount.

l2. A mount for apparatus of the class described, having supporting legs, said mount having seats to receive a plurality of said legs tiltingly, and a holding device adapted to be secured adjustably to another of said legs whereby the apparatus may be adjusted and held in different tilted positions on the mount, said mount including a body portion having a three-point under-bearing and a fourth under-bearing,r spaced widely from said three points and adjustable vertically on the mount, said mount including a earriage in which said fourth bearing is mounted for vertical adjustment.

13. A mount for apparatus of the class described, having supporting legs, said mount having seats to receive a plurality of said legs tiltingly` and a holding device adapted to be secured adjustably to another ol said legs whereby the apparatus may be adjusted and held in different tilted positions on the mount, said mount including a body portion hinged to the mount and having u turn-but inning a, three-point. under-bearing and a ton to main it in adjusted position with re fourth under-bearing spaced widely from spect thereto.

said three points and adjustable vertically on This specification signed this 14th day of the mount, said mount including a carriage March, 1924.

in which said fourth hearing is mounted for vertical adjustment, said carriage being ERNEST J. BRASSEUR.

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