US1664770A - Method of and apparatus for recording and exhibiting - Google Patents

Description

W. J. CITRON METHOD OF AND APPARATUS FOR RECORDING AND EXHIBITING April 3, 1928.

Filed Feb. 16. 192' 3 Sheets-Sheet l INVENTORV .ll'lIIl l llllI uw l l l H l l Q mm a April 3, 1928. 1,664,770

W. J. CITRON METHOD OF AND APPARATUS FOR RECORDING AND EXHIBITING Filed Feb. 16. 1927 3 Sheets-Sheet, 5

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TORNEYS.

Patented Apr. 3, 1923.

eanne WILLIAM J. CITRON, OF SAN FRANCISCO, CALIFORNIA.

METHOD OF AND APPARATUS FOR RECORDING AND EXHIBITING.

Application filed February 16, 1927. Serial No. 168,683.

This invention relates to a method of and apparatus for recording and exhibiting stockquotations, election returns, and other .similar transitory information.

The object of the invention is to combine a standard form of typewriter and a prop lantern in such a way that strip of be fed through the typewriter and written upon, and automatically and with aminimum of delay said strip will be passed across the aperture of the projecting lantern and the data written thereon will be projected in a readable form upon a screen. A further object is to control the movements of the strip of paper by the action of turning the platen roll on the .ty ewriter. Another object is to so arrange t e typewriter and projecting lantern relatively that a minimum of space separates the typewriter platen from the light aperture in the lantern, in order to reduce the time interval between recording and projecting, and to otherwise save paper.

In the accompanying drawings are illustrated two different forms which my invention may assume. v v

Fig. 1 shows a vertical central sectional view of a preferred arrangement of the apparatus;

Fig. 2 shows a detail sectional view of the guide means in front ofthe condensing lens- Fig. 3 shows a perspective view of the guide means for the strip of paper which is arranged between the typewriter and the light aperture;

Fig. 4 shows a vertical sectional. view taken on the line IV of Fig. 1;

Fig. 5 shows a front elevation of the ap 4c paratus;

Fig. 6 shows a lan view in section and diagram of a modified arrangement of the ap aratus.

' n its preferred form the apparatus 1ncludes a base projecting lantern 11. This base carries a platform 12 on which is arranged a standard form of typewriter, 13. A roll of paper 14: is mounted at the front edge of the platform,

.50 and is fed through a guide 15 beneath the typewriter, thence upwardly at the rear,

jecting paper may where it passes under and over the platen roll 16 of the typewriter. From here the strip of aper passes downwardly to a'guide arrange upon the platform 12. This guide 10 upon which is arranged a as here shown includes a stationary plate 17 and a hinged plate 18, between whichthe strip of paper passes. Also included in this guide is an idler roll 19 journaled in slots formed in brackets 20 fixed to the stationary late 17. Suitable springs 21 are provided to pull the idler roll against the stationary plate, so as to apply friction to the strip of paper.

The strip of paper next passes through a guide formed by the front of a lens barrel 24 anda window 25 hinged thereto, the lens barrel contains theusual condensing lens 26 and is fixed to the front of the lamp house. From this point the stri of paper passes around a driving roller 2%, which is operatively connected to the platen roller 16 by any suitable driving means, such, for example, as a flexible shaft 28, and such gearing 29 as may be necessary to insure equal travel and uniform direction between the two rollers. The strip of paper is held in frictional contact with the roller 27 b a spring-pressed roller 30, similar to the i ler roller 19. The rollers 19 and 30 serve to keep a desired tension on the strip of paper as it passes across the light aperture and they permit of sufficient slack being left in the strip of paper between the platen roller 16 andthe idler roller 19 so that the necessary travel of the platen roller endwise on the typewriter will not be interfered. with.

At the proper distance in front of the condensing lens there is arranged a projecting lens 31 for projecting the rays of light upon a screen suitably located. As shown in Fig. 1 the rays will be projected along an axis lying in a vertical plane with the median fore-and-aft line of the typewriter. This will of necessity require the operator of the typewriter to position himself to one side of the middle of the typewriter, so as not to obstruct the 'rays. This, however, is not inconvenient, since the smaller sizes of typewriters may be used and the strip of paper written upon need be only 3 or 4 inches wide, hence cutting down the amount of travel of the carriage and platen of the typewriter. It is desirable, obviously, to reduce to a minimum the interval between typing and projecting, and this I have accom-:

plished in the above-described arrangement. In practice the strip of paper between the platen and the light aperture can be reduced to about 10 or 12 inches, so that there is comparatively little delay between writing tion shows the shelf extended over the platen of the typewriter in position where the strip of paper may be passed from theplaten over the shelf and thence to the projecting lantern. WVith the aid of this shelf the information to be projected can be written manually, as is sometimes desirable where the regular typist is temporarily absent.

In Fig. 6 I show a modified arrangement wherein the light is projected at right angles to the fore-and-aft line of the typewriter, and thus the operator can take a position fully in front of the typewriter. This modification includes a 45 mirror A, arranged between the condensing lenses, and a similar mirror B, arranged in front of the condensing lenses. The strip of paper will be fed in the same manner as before, in front of the condensing lenses, but the matter written thereon will be projected in readable form at one side of the typewriter.

Various changes in the construction and arrangement of the several parts may be employed, without departing from the spirit of my invention as disclosed in the appended claims.

. I Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. An apparatus for recording and exhibiting transitory information, comprising a typewriter having a platen roll, a projecting lantern disposed below the typewriter, means for guiding a strip of writing material from a supply roll to the platen roll of the typewriter, means for guiding said strip from the platen roll across the aperture of the lantern, and means connected with the platen roll for advancing said strip past the aperture.

2. An apparatus for recording and exhibiting transito information, comprising a typewriter having a platen roll, a projectlng lantern disposed below the typewriter, means for guiding a strip of writing material from a supply roll to the platen roll of the typewriter, means for guiding said strip from the platen roll across the aperture of the lantern, means connected with the platen roll for advancing said strip past the aperture, and means for maintaining the strip under tension where it crosses the aperture, said means permitting slackto occur in the strip between the platen roll and aperture.

3. An apparatus for recording and exhibiting transitory information, comprising a typewriter having a platen roll, a projecting lantern disposed below the typewriter, means for guiding a strip of writing mate-, rial from a supply roll to the platen roll of the typewriter, means for guiding said strip from the platen roll across the aperture of the lantern, means connected with the platen roll for advancing said strip past the aperture, and ashelf movable into position adj acent the platen roll, whereby the strip may be passed thereover in position to be written upon by hand.

4. An apparatus for recording and exhib- I iting transitory information, comprising a typewriter having a platen roll, a projecting lantern. disposed below the typewriter, means for guiding and moving a strip of writing material from asupply roll beneath the typewriter, and thence upwardly around the platen roll of the typewriter, guide means adjacent the top of the lantern for frictionally guiding the strip, and means ad-- jacent the lower portion of the lantern for moving said strip, said last-named means being operatively connected with the platen of the typewriter.

WILLIAM J. oirnon.

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