US1340529A - Automatograph - Google Patents

Description

C. W. DAVISON.

AUTOMATOGRAPH.

APPLICATION F ILED FEB. 12, I920. 1,340,529; Patented y 18, 1920.

2 SHEETS%I I EET 1- 3 L-& L i) C. W. DAVISON.

AUTOMATOGRAPH.

' APPLICATION FILED FEB. 12. 1920.

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CHARLIfi'W. DAV-ISON, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM T. STEAD MEMORIAL CENTER, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

AU'IOMATOGRAPH.

Specification of Letters Patent. r Pate t d pl 1 8 1920 Application filed February 12 1920'. Serial No. 358,077.

To all whom it may concern Be it known that I, CHARLES TV. DAVISON, a citizen of the United States, residing at Chicago. in the county of Cook and State of Illinois, have invented a new and useful Automatograph, of which the following is a specification.

This invention relates to automatographs.

The primary object is to provide a means for assisting in the proper spacing of lines when writing. is done by the blind, or by persons writing in the dark.

This and other objects as will appear, ar accomplished by my invention, which is fully described in the following specification and shown in the accompanying drawings, in which- Figure 1 is a top plan view of my device; Fig. 2 is a bottom plan view of the same; Figs. 3, 4: and 5 are sections on the lines 3-3, 4-1, and of Fig. 1; Fig. 6 is a section on the line 6--6 of Fig. 5 and Figs. 7 and 9 are partial sections on the lines 7-7 and 8-S of Fig. 3.

I hare illustrated as an embodiment of my device an inclined plate .10, supported upon legs 11 and 12, at the upper and lower ends of the plate, respectively. A sheet metal table 13 is adjustably secured to the plate 10by means of screws let and 15, as shown in Figs. 2, 5 and (3. A tablet 16, or other writing material, is secured to the table by means of a strip 17 and thumb screws 18.

The sides of the plate 10 are rolled upwardly and inwardly as indicated by 10 to form parallel longitudinal passages which are. tubular in form. A carrier 19 extending across the entire width of the plate 10 is mounted thereon and adapted to slide backward and forward. The carrier 19 is formed from a flat piece of metal with a relatively narrow center part extending across the width of the plate 10, bridging the tablet 16, with its end edges 20 considerably widened and bent downwardly to rest on the sides of the plate 10 to the inside of the rolled edges 10. Each of the downwardly bent edges 20 is provided with two outwardly bent tongues extending into and adapted to slide in the tubular passages formed bythe rolled sides 10 of the plate 10. These tongues are near the ends of the end edges 20 of the carrier 19, the one at the upper or forward end being indicated by 22 and the other by 21.

The forward end of each tubular passage 10 is partially closed by means of a pin 23 and a circular button 24, against which rests the forward end of a helical spring 25. The opposite end of this spring bears against a cylindrical block 26, and this in turnagainst the extension 21 of the carrier 19. The extension 22 is shorter, to provide clearance for the spring 25, as shown in Fig. 8. The pin 27 at the lower end of the tubular passage 1O provides a stop for the carrier 19,

It will be understood from the foregoing that the spring constantly tends to force the carrier 19 toward the stop 27. however, is prevented and controlled by a mechanism which. will now be described.

A series of longitudinally spaced holes 28 are provided in thepla-te 10, which serve the purpose of a rack.) The carrier 19 has secured thereto a U-shaped member 29, which has a pin 30 therein, upon which are hingedly mounted the pawls 31 and 32, which are normally pressed toward the rack by means of the springs 33 and 34. The opposite ends of these pawls terminate in beveled fingers 31 and 32, as shown in Fig. 5. A slide 35 is slidably mounted upon the carrier 19. The slide is provided with a stop 36 which. limits the distance to which the slide can be pushed to the right. An inclined trip member 37 is hingedly mounted, by means of a pin 38, upon the slides 35. This trip member is free to swingdownwardly and to the left, except for the spring 2119, which holds it in the position shown in AS the slide as is moved a the left, trip at depresses the finger 31 and the pawl 31 is accordingly released from the rack 28. The spring 25 acts to force the carrier 19 back and the pawl 32 drops into the next succeeding hole 28. The pawl 31 is now resting upon the space between the holes of the rack. As the slide is moved still farther to the left, the trip 37 depresses the finger 32 and the pawl 32 is released, thereby permitting the spring 25 to again act and force the carrier 19 back until the pawl 31 is in em gagement with the hole just released by the pawl 32.

The operation of my device is as follows:

This,

A Writing tablet 16 is secured in place and the carrier 19, pushed as far as possible toward the upper edge of the teeth. The Writers hand is placed upon the slide 35 and as he writes, the slide is moved to the right, guiding his hand across the paper. The stop 36 indicates that the end of the line has been reached when the Writer. pencil is raised and the hand, together with the slide 35 moves to the extreme left hand end of the carrier 19. When this occurs,thc mechanism previously described causes the pawls to be operated so as to permit the spring to move the carriers back until the pawl 31 engages the next succeeding notch 28. The Writer now proceeds on the next line, which is separated from the first and so on down, until the entire sheet tablet is covered.

IVhile I have shown and described but a single embodiment of my invention, it is to be understood that it is capable of many modifications. Changes therefore in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my inventionas broadly as possible in view of the prior art.

What I claim as new and desire to secure by Letters Patent is:

1. I11 a device of the character set forth, a plate, means on said plate for attaching a tablet thereto, a carrier adapted to move longitudinally of said plate and over said tablet, a slide on said carrier adapted to move transversely of said plate, and means for moving the carrier rearwardly a predetermined distance at each actuation of the slide.

2. In a device of the character set forth, a plate having longitudinal rolled edges, means on said plate for attaching a tablet thereto, a carrier adapted to slide in said rolled edges, springs in said rolled edges tending to press said carrier rearwardly, a

, slide on said carrier adapted to move transversely of said plate, a notched rack extendmg longitudinally of sald plate, a pawl mounted on the carrier and adapted to ening longitudinally of said plate and a plu rality or PitWlS hingedly mounted upon the carrier and adapted to engage the notches of said rack one at a time, and means operable by said slide to successively release said paivls so as to permit said springs to force said carrier rearwardly one notch at a time.

l. In a device of the character set forth, a plate having longitudinally rolled edges, means on said plate for attaching a tablet thereto, a carrier adaptedto slide in said rolled edges, springs in said rolled edges tending to press said carrier rearwardly, a slide on said carrier adapted to move transversely oi said plate, a notched rack extending longitudinally of said plate and a plurality of paivls hingedly mounted on the carrier and adapted to engage the notches of said rack one at a time, said pawl having operating fingers lying side by side in the same plane transversely of the plate and a trip on said slide adapted to successively engage said operating fingers.

CHARLES W. DAVISON.

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