US805187A - Pantographic drawing apparatus. - Google Patents

Description

No. 805,187. PATENTED NOV. 21, 1905. G. M. DALY.

PANTOGRAPHIG DRAWING AlPARATUS.

APPLIOATION FILED mm a, 1905.

2 SHEETS-SHEET 1.

WITNESSES: INVENTOR ATTORNEYS No. 805,187. PATENTBD NOV. 21, 1905.

G. M. DALY.

PANTOGRAPHIG DRAWING APPARATUS.

APPLICATION FILED JUNE 3, 1905.

2 SHEETS-SHEET 2.

ATTORNEYS UNITED STATES PATENT onnron.

PANTOGRAPHIC DRAWING APPARATUS.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed June 3, 1905. Serial No. 263,599.

To a whom it may concern.-

' Be it known that I, CHARLES MICHEL DALY, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Pantographic Drawing Apparatus, of which the following is a full, clear, and exact description.

The object of this invention is to provide a drawing apparatus which is simple, novel, and

adapted for close folding or erection at a desired point, the special construction of the device enabling its convenient and efiective use by an amateur draftsman for making a drawing of natural scenery or any object by direct observation from a stationary viewpoint, marking the outlines as well as the shading of the scene or object with a pencil that is manipulated in accord with the corresponding movement of a stylus, said stylus being passed over the outlines and shading of a natural object, view, or structure as depicted on or through a plate-like supported transparent medium, the pencil and stylus being actuated in unison by their connection with means adapted to receive universal movement.

The invention consists in the novel construction and combination of parts, as is hereinafter described, and defined in the subjoined claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts inall the figures.

Figure 1 is a perspective View of the improved apparatus erected for use. Fig. 2 is a vertical transverse sectional view of the same, taken substantially on the line 2 2 in Fig. 1, the supporting-tripod being omitted. Fig. 3 is a detached side view of a frame wherein is held an image-receiver plate and a modified image-receiver plate detachably secured upon the one fixed in the frame. Fig. 4 is a partly-sectional side view of a drawing-board employed, and Fig. 5 is a transverse sectional View of main portions of the apparatus shown folded and mounted upon the upper portion of a supporting-tripod.

of the base-board 6 two similar bracket-blocks 7 are secured, that are rabbeted on their upper sides and inner edges, thus providing open recesses a, that are rectangular and transversely disposed.

Two frame-standards 8 of similar form and dimensions and which may with advantage be formed of wooden plank having proper length and thickness each has a rectangular channel 6 formed longitudinally and centrally in its inner side wall, said channels extending from the upper ends of the standards a suitable equal distance and terminatingin a shoulder 7). As shown, the standards 8 are hinged upon the blocks 7 at their ends, which occupy the recesses a, these hinges a adaptingthe standards to be folded inwardly only, one upon the other, and the lower one upon the base-board, and as the standards impinge upon the inner sides of the blocks 7 when erected they will be prevented thereby from fiexing outward beyond a vertical position or parallel with each other.

A drawing-board 9 is held between the standards 8 by means presently described. Said board being level and rectangular in contour may be made of wood or other suitable material. The drawing-board 9 is of proper length to fit neatly between the standards 8 when they are rocked into parallel vertical planes, and from the lower edge of the drawing-board two spaced dowel-pins c are projected downward, these pins occupying mating sockets 0, formed in the upper surface of the base-board 6 when said board is placed in position for service.

A rectangular frame 10 of suitable length and width forms a border for an image-receiver plate 11, that is secured by its edges therein, said receiver-plate being transparent, or nearly so. Preferably glass plate is employed for the manufacture of the plate 11; but mica or celluloid may be substituted for glass. The edges of the frame 10 at the ends thereof are fitted to slide neatly down into the channels Z) in the standards 8 after the drawing-board 9 has been placed between them.

In the upper edge of the drawing-board9 two spaced sockets (Z are formed, as shown clearly in Fig. 4, and dowel-pins (Z are projected downward from the lower edge of the frame 10 at points which permit their free insertion into the sockets cZ when the frame is slid down into place in the channels 6, this pin-and-socket connection of the frame and drawing-board serving to support the upper edge of the latter and hold said drawing-board in alinement with the frame 10 and plate it forms a border for.

The image-receiver plate 11 in use of the apparatus is supported stably facing the object to be drawn on paper or the like held stretched upon the drawing board 9, and the apparatus so far as described is either seated upon a permanent support or mounted upon a tripod 12 in the usual way, as inclicated in Figs. 1 and 5, the tripod-support being preferred when sketching from nature in the open air is to be done by the aid of the improved apparatus.

The pantographic device preferably employed essentially consists of the following details: A guide-rod 13 is provided, having a straight body that may be formed of wire of proper gage and at each end is bent at a right angle, forming integral legs 13 thereon, which extend in the same plane and direction. On each standard 8 two ring eyes or staples c e are secured in the normally front edge thereof at a suitable distance from the upper ends of said standards, the staples on the standards being equally spaced apart. The length of the guide-rod 13 is so proportioned that when the standards 8 are erected in vertical planes and held so by the introduction of the drawing-board 9 and frame 10 between them the legs 13 on the rod may be slid down into the staples 0, and thus secure the guide-rod detachably in a horizontal position on the standards. A slide-rod 14 is supported for the reception of lateral rocking and longitudinal sliding movement on the guide-rod 13 by a preferably lozenge-shaped frame 15, that may be formed of wire-rod material bent so as to produce a ring-eye r at each end of its longest diameter, the guide-rod passing loosely through these oppositely-disposed ring-eyes. Equally distant from the ring-eyes 9 similar ring-eyes it h are formed at the two remaining angles of the frame 15, these ring-eyes loosely receiving the slide-rod 14. On the lower end of the slide-r0d 14 an arm 14 is bent at a right angle, and, as shown in Figs. 1 and 2, said arm projects away from the drawing board 9 when the pantograph device is mounted for service on the standards 8. On the arm 14 a sleeve 14" is secured parallel therewith, said sleeve receiving a pencil or paintbrush handle, a pencil f being shown in the drawings. Upon the normally upper end portion of the slide-rod 14 a tracing arm or stylus 16 is adjustably mounted, which may be bent into the form shown in Fig. 1 or be of any other shape preferred, it being only essential that the free end of the stylus be of small diameter, and thus adapted for service as a tracer. Above the ring eyes or staples c on the standards 8 two similar staples 2' 91 are secured on each of said standards, the pairs of these staples being spaced apart the same distance, respectively. preferably formed of wire rod, is mounted upon the standards and'consists, essentially, of two sight-rings m m, formed integral with a spacing-bar m, the rod material being extended directly opposite from the sight-rings and then bent at an angle it. From the angles a the equal remaining portions of the wirerod material are extended, divergingasuitalole degree, affording two frame members 17 17, on the ends of which similar legs 17 a are bent downward, and, as shown in Fig. 1, the divergence of the frame members 17 is such that the legs 17may be slid downwardly inthe staplest' on respective standards 8, and thus support the spectacle frame projected forwardly. On the spacing-bar m one end of a brace-rod 18 is loosely mounted, so that it may be rocked thereon, and upon the other end of the rod 18 a hook member 0 is formed. The brace-rod 18 is of such a length that it will support the spectacle-frameand stiffen the frame members 17 thereof when the hook 0 is engaged with the upper cross-piece of the frame 10, as shown in Figs. 1 and 2. v

In using the improved apparatus the baseboard 6 may be seated on a table or other stable support, if the object to be drawn or painted is within a room, or in case a scene from nature, which is either a pastoral, forest, or marine view, is to be drawn or painted from observation the apparatus may be supported on the tripod 12, that is detachably secured on the lower side of the base-board 6, as be fore mentioned. The user of the apparatus places it in such a position that the object or scene will be properly exposed through the image-receiving plate 11. Drawing paper or canvas p is removably secured upon the drawing-board 9 preparatory to the sketching operation, which latter is conducted readily if the operator takes hold of the pencil f and manipulates the slide-rod 14 while viewing the scene or object through the sight-rings m of the spectacle-frame. By carefully passing the point of the stylus 16 around the outline of the image or view seen through the plate 11, while correspondingly marking the paper p with the pencil f, an exact picture or drawing of the object, landscape, or marine view may be executed on the drawing-paper. Obviously as the artist views the scene through the sight-rings m m, the work may be temporarily arrested and resumed at will, as the view-point will remain the same if the eyes of the operator are directed forwardly at all times. The shading necessary to complete the picture may be effected by continuing the work, the stylus being moved over such parts of the object or view as are essential to enter in the drawing for its complete shading, as is indicated in Fig. 1. It is also feasible to draw directly upon a transparent medium such as a sheet of celluloid, mica, or transparent mus- A spectacle frame,

lin 11held imposed upon the plate 11 by the clamps it, the spectacle-frame serving to preserve the point of sight while the artist draws upon the transparent medium that is held on the transparent plate 11, the pantographic mechanism being dispensed with in this case. It is to be understood, however, that it is preferred to employ this portion of the apparatus for general use, either to draw or paint directly from nature.

It will be seen that the apparatus When not in use may be compactly folded by turning the standards down, one upon the base-board and the other upon the one already folded, the guide-rod of the pantographic device which has been previously removed from the standards may with the slide-rod and carrier-frame therefor be folded flat, and the spectacle-frame with the brace-rod be placed on the other portions of the apparatus in a moderately-sized rectangular box (not shown) for convenient transportation as occasion may require.

Slight alterations in design and proportion of details of the improved apparatus may be made without departure from the spirit and scope of my invention, and I claim all such minor modifications as are embraced within the scope of the claims.

Having described my invention, I claim as new and desire to secure by Letters Patent 1. In drawing apparatus, the combination of a main frame, of a block upon one end of the frame, a longitudinal grooved standard hinged to the block, a second longitudinal grooved standard hinged to the frame, a drawing-board supported in the grooves of the standards, an image receiver plate in the grooves of the standard above the drawingboard, and a pantographic device carried on the standards for drawing a View seen through the receiver=-plate upon a medium mounted upon the drawing-board.

2. In drawing apparatus, the combination of a main frame, spaced standards hinged thereto, a transparent medium supported by. the standards, a drawing-board below the transparent medium, a rod connecting the standards, a frame having eyes for engaging the rod, a second rod supported for vertical movement by the frame, and provided with a; tracing-arm and a pencil-support.

3. In a drawing apparatus, the combination with a main frame having a base-board, standards hinged at either end to the base-board, a drawing-board supported by the standards, a transparent medium supported by the standards above the drawing-board, a pantograph comprising a marking device detaohably mounted on the standards, a spectacle-frame supported upon the frame and projecting forward therefrom, and a detachable brace for the spectacle-frame.

4. In a drawing apparatus of the character described, the combination with a main frame,

a drawing-board, and a framed image-receiv- 5 ing plate supported on the frame above the drawing-board, of a spectacle-frame having sight-rings and arms supported in front of the image-receiving plate, and a brace-rod hinged on the spectacle-frame between the sight- 7 rings and having a hook on the opposite end that engages the frame of the image-receiving plate.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHAS. MICHEL DALY.

Witnesses:

W. S. HENRY, GEORGE V. SNIDER.

Images