US1419662A - Apparatus for facilitating the application of luminous material - Google Patents

Description

R. w. ERDLE. v APPARATUS FOR FACILITATING THE APPLICATION OF LUMINOUS MATERIAL.

APPLICATION FILED MAR 7, I92I.

Patented June 13, 1922'.

E T 5Q REINER W. ERDLE, OF NEW YORK, N. Y.. ASSIGNOR TO RADIUM DIAL COMPANY, OF PITTSBURGH, PENNSYLVANIA.

APPARATUS FOR FACILITATING THE APPLICATION OF LUMINOUS MATERIAL.

Specification of Letters Patent. Patented June 13, 1922.

Application filed March 7, 1921. Serial No. 450,438.

To all whom it may concern:

Be it known that I, REINER W. ERDLE, a citizen of Germany, and a resident of New York, in the county of New York and State of New York, have invented certain new and, useful Improvements' in Apparatus for Facilitating the Application of Luminous Material; and I do hereby declare the following to be a full, clear, and exact description of the invention, such; as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to devices for facilitating the application of luminous material and more particularly to means for accomplishing the application of such material to the characters of dials and other objects.

In the application of luminous material to the characters on clock and other dials and other objects, it has heretofore been the practice to apply the material by hand with the use of a small brush or other fine implement. Such method is very slow and it is diflicult to obtain uniformity of execution and also of luminescence.

One object of my present invention is to provide. mechanical means to facilitate the application of luminous material to dials and other devices, and to insure accuracy, rapidity and uniformity of such application of the material without the necessity for the employment of skilled labor such as has been necessary with methods of application heretofore employed.

l/Vith this and other objects in view the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying1drawings, Figure 1 is a perspective view s owing the positions of the parts when the device is in use, and Figure 2 is a similar view showing the positions of the parts ready to receive a dial or other object.

1 represents a box or frame provided with a table 2 which is preferably slightly inclined. To the table 2 near the upper edge thereof, a plate 3 is secured and to this plate an open metal frame 4 is hinged as indicated at 5. This open frame carries a stencil 6 which may be made of sheet celluloid or other light material in which the numerals or characters 7 may be conveniently cut. The upper edge of this stencil is secured to the frame 4 by means of a plate or strip 8,

the latter being secured to the frame by means of bolts or screws 9. Strips of metal or other rigid material are secured to the lower end portion of the stencil, as indicated at 10, by means of. suitable screws or bolts 9 and these strips are connected with the lower end of the frame 4 by means of springs 11.

The table 2 is provided at or near its center with an opening in which a disk 12 is supported and this disk is made with two parallel elongated slots to expose the poles of a magnet 13 which may be supported in position by said disk. In the drawing I have shown the magnet as of the permanent type but it is evident that an electromagnet might be employed. Blocks 14 are secured to the table 2 near opposite edges thereof and at respective sides of the disk which supports the magnet. To these blocks the holders 15 of pointers 16 are hinged.

Many dials, such as clock dials are made of metal containing iron or with iron backing plates.

In the operation of my improved device, the frame 4 will be disposed in raised. position, as shown in Figure 2, and, after raising the pointers 16, a dial having a backing of magnetic material will be placed over the poles of the magnet 13 and the pointers will then be lowered over the dial. The dial may now be manipulated to turn the same until the pointers shall register with predetermined points on the dial. The stencil will now be placed over the dial so that the character openings shall register with the characters on the dial and the stencil may then be secured at one edge to the frame 4 and the strips 10 secured to the other edge and as said strips are connected with the lower member of the frame 4, the stencil will be supported in proper position in said frame. It will be understood that before the stencil shall have been adjusted as above described, the points 16 will-have been raised. The stencil having been adjusted to proper position over the dial, luminous material may be wiped or otherwise applied with a brush or other device over the stencil so that it will pass through the open stencil characters and become deposited on the characters of the dial accurately. When the first dial shall have been treated or operated upon in the manner above described, the frame 4: carrying the stencil will be raised and the dial removed from the magnet. The stencil 6 having been adjusted in the frame 4, it need I claim as new and desire to secure by not be further adjusted for dials subsequently operated upon. Thus the second and subsequent dials may be placed on the magnet and adjusted manually with the use of the pointers 16 by moving or sliding the dial over the magnet and, having been thus adjusted, the pointers 16 will be raised and the frame 4 then lowered to position the stencil accurately over the dial and the stenciling operation will then be performed as above explained.

Various slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and'hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what Letters-Patent. is: v

1. In a device of the character described, the combination of means for retaining an object to be stenciled against accidental movement in any direction but permitting said object to be moved over the retaining means for adjusting purposes. and a carrier for a stencil movably mounted to permit the latter to be moved toward and from the object mounted over the retaining means.

2. In a device of the character described, the combination of a table. magnetic means for retaining an object to be stenciled, and a carrier movably mounted on said table for supporting a stencil over work retained by said magnetic means.

In a device of the character described, the combination with a frame provided with a table. magnetic means for holding a dial or other object in position on the table, movable pointers to register with opposite points on said dial or other object, a frame having movable connection with the table, and a stencil carried by the movable frame.

4:. In a device of the character described, the combination with a table provided with a slotted part, of a magnet having its poles disposed in the slotted part of the table and adapted to hold a dial or other object in adjusted position on the latter, means on the table for determining the accurate adjustment of said dial or other object, a stencil to be disposed over the dial, and a movable frame carrying the stencil.

5. In a device of the character described, the combination of a table means for retaining a dial or other object on said table, whereby said dial may be moved manually over the retaining means. a frame having hinged connection with said table, a stencil disposed in said frame, means for securing one edge of said stencil with the frame, and flexible means connecting the opposite edge portion of the stencil with said frame.

'In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

REINER W. ERDLE.

\Vitnesses ROBERT C. FULTON, JOHN F. OLoUGHLIN.

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