US1765448A

US1765448A - Recorder for facsimile systems

Info

Publication number: US1765448A
Application number: US327009A
Authority: US
Inventors: Ranger Richard Howland
Original assignee: RCA Corp
Current assignee: RCA Corp
Priority date: 1926-08-12
Filing date: 1928-12-19
Publication date: 1930-06-24
Anticipated expiration: 1947-06-24
Also published as: US1770493A; DE533667C; NL22716C; GB276009A

Description

June 24, 1930. R. H. RANGER 3,755,443

RECORDER FOR FACSIMILE SYSTEMS Filed Dec. 19, 1928 avwmtoz R. H. RANGER ways wm j f mw Patented June 24', E930 NITED STATES erasure eArENr o FicE RICHARD HO'WLAND RANGER, OF NEWARK, NEW JERSEY, ASSIGNOR TO RADIO CORIQ' JA'IION OF AMERICA, A CORPORATION OF DELAWARE RECORDER FOR FACSIMILE SYSTEMS Original application filed August 12, 1926, Serial No. 128,720. Divided and this application filed December The present invention relates to a recording system and means for use in connection with facsimile apparatus and the like in which the recording action is, what has become known in the art as pyro recording, this term being applied toa system for recording electrical impulses by translating them into heat and then applying the resulting heat pulses to a heat sensitive paper.

The present application forms a divisional part of my copending application, Serial No. 128,720, filed on August 12, 1926.

Similar to the parent application, the sys tem herein disclosed has particular reference to recording by means of .a heated jet of air, gas, or fluid projected upon a chemically treated heat sensitive paper of the character, for example, disclosed by my copending application which was filed jointly with Richard Stuart Bicknell, Serial No. 303,108 on August 31, 1928, or, for example, a paper of the character disclosed in my -co-pending application filed jointly with Francis- G. Morehouse on December 7, 1928, as Serial No. 324,421, or, if desired, the system may be used in connection with any other appro priate form and type of recording mediums which will respond to an application of heat to produce a pictorial or even non-pictorial record.

While the application here, as in the parent case, is directed particularly to the recording of pictures, it is to be understood, that I intend to use the word pictures in a generic sense and include thereby all printed matter which is capable of being viewed by the optic senses and may include therein, pictures, newspaper articles, checks, documents, aflidavits, finger printsffashion plates, magazine covers, views, blueprints, financial statements, and, in fact, all types of printed matter. 7

An object of this invention is, therefore, to provide a system and means for supplying or projecting heat to or against a heat sensitive recording surfaceand, at the same time, to I provide a novel and eflicient means for controlling the amount of heat which is directed 60 against the recordingsurface.

Serial No. 327,009.

Other objects of this invention will at once suggest themselves by a reading of the specification and claims in connection with the accompanying drawings although, it is to be understood, that it is, of course, among the objects of this invention to provide a system whereby recording action may be produced easily by the aid of a. recording means of the rcharactcr described in which there is high efliciency, durability, convenient operation, compactness, substantial fool-proof operation, and minimum installation expense.

The single figure of the drawing illustrates a schematic embodiment which my invention may assume although, it is to be understood, that various modifications and changes may be made in the apparatus disclosed in so far as these changes fall fairly within the spirit and scope of the invention as defined by the hereinafter appended claims.

Now, to refer specially to the accompanying drawing, air, or other. appropriate gas or fluid, may be supplied from an external source (not shown) to an inlet tube 1 of a nozzle system, generally designated A. The nozzle A is provided at one end thereofopposite -tion 3, being of very small diameter tends to project the medium at a relatively high velocity against the recording surface 5.

The recording surface 5 which is to be subjected to the action of the jet of air, gas, or

other appropriate fluid from the nozzle 3 is carried and supported by the supporting surface 7 which is preferably in the form of a drum and which may rotate continuously with respect to the jet 3 and advance relatively thereto in a spiral path, or which may be so associated with the jet that the jet is arranged to trace a path longitudinally of the supporting drum and at the end of each longitudinal stroke of the jet with respect thereto the drum 7 will be rotated or advanced in the direction of the arrow an amount equal to one line advance of the picture. The line advance may be of any desired and chosen amount, depending upon the amount of detail desired. As a suitable amount of advance 1/80 of an inch on the circumference has been found to be quite suitable for providing sufficient detail for all practical purposes,-although other line advances may be used where desired. 4

Surrounding the jet A at a point near the take-in tube 1 I have provided two clamping rings 9 and 11 to which conductors 13 and 15 respectively are connected. Energy is supplied to the conductors from an external source (not shown) which may, if desired, be a battery. By connecting heated coils 14, of the general character shown and described in connection with Figs. 1 and 2 of the parent application, of which this forms a divisional part, with'conductors 13 and 15, th air, fluid, or gas, flowing through the nozzle system may be appropriately heated to the desired temperature for recording. As in the parent case, the heating coils 14 may consist of the usual wrapping of a fine conductor about the tube carrying the recording medium within .the nozzle and so arranged as to heat the medium as it flows therethrough.

In order to confine as much heat as possible within the nozzle A and thus heat the recording medium to a higher degree of temperature I have provided an asbestos coating 17 about the nozzle A and may secure this coating thereto by an appropriate method, for instance, by clamping rings or wires 19.

The entire nozzle portion AF-ispreferabl supported by means of a slidable frame wor c 21 upon a plate member 23 carried by a U- shaped supporting member 25. The entire nozzle may be adjusted vertical with respect to its support bracket by turning the thumb screw 26 and adjusted horizontally with respect to the same support and the recording surface 5 by means of the

thumb screws

27 and 29, which are so arranged that upon being loosened they ma provide through a slot portion 28 a slidab e movement for the nozzle.

Carried by the U-shaped supporting braeket 25 I have provided a telephone receiver 31 which is supplied With energy through

conductors

33 and 35. These

conductors

33 and 35 are in turn connected with a receiving sys tem of any desired type, for instance, of the typeclaimed and described in my copending applications Serial No. 615,175, filed vFebruary 16, 1924, and Serial No. 759,514, filed November 18, 1924. If desired, any other a propriate type of receiving systems may be used and so arranged as to have the output energy therefrom supplied to the conductors associated with the receiver 31.

A thin rod 37 is attached to the diaphragm 39 of the telephone receiver at a point 41, for example, and vibrations in the receiver produced in accordance with variations in the strength of signals supplied thereto from the receiving system will cause the rod 37 to move up and down a proportionate amount in a well known manner. The rod 37 at its upper end 43 is pivotally connected witha pivot rod 45 pivoted at a point 47 closely adjacent to the point of connection 43 with the rod 37, so that the end of the rod 45 remote from the rod 37 will have translated thereto a proportionately large displacement due to a slight movement of the diaphragm 39.

Connected to the end 49 in a pivotal mannor is a shutter 51, which is supported by the guides 53 and 55, respectively, so that upon a movement of the diaphragm 39 up and down in accordance with the received signals the shutter 51 will slide in the guides and likewise move up and down. The motion of the shutter will, by the manner of linking the actuating rods, be much greater than that of the diaphragm 39.

The shutter 51 is provided with an orifice 57 which, under normal conditions is directly in front of the opening in the jet 3 through which the air, gas or other fluid, is projected, so that this recording medium may then be directly passed therethrough toward the recording surface 5. However, when signals are received so as to move the diaphragm of the receiving telephone 31 up and down this motion is translated to the shutter system 51 and the latter will also move up and down and prevent the heated recording medium from striking the recording surface 5 and thus will permit the making of marks on the recording surface which corresponds to, or closel approximate, a transmitted picture or the li e.

In order to prevent the recording medium, projected from the jet 3 through the orifice 57 in the shutter 51, from spreading over a large area of the recording surface I have provided a means to confine the heat from the jet to a small differential section of the recording medium, which may, for example, be an L-shaped standard 59 positioned between the recording surface 5 the shutter 51. This L-shaped standard 59 is supported rigidly with res ect to the support 23 for the nozzle system in any desired manner. In this standard 59 I have providedan orifice 61 which will serve as a diaphragm and determine the area over which the recording medium from the jet 3 may be distributed. If

desired, this opening or orifice 61 may be formed so as to be adjustable as regards its size, although for convenience of illustration this arrangement has not herein been illustrated.

While the system has herein been illustrated and described as consisting of a shutter mechanism which moves up and down with tion of this invention to provide a shutter control system in which the shutter is not regulated as to its up and down movement with respect to the jet. Such a system may be provided by pivotally mounting the shutter at a fixed height with respect to the jet and arranging the same so as to tilt or oscillate with respect to the jet 3, and thus control the flow of the recording medium from the jet in any desired or appropriate manner. This "may be accomplished, for example, by providing a system of bell-crank levers operable from the diaphragm member 39, and still fall within the spirit and scope of this invention.

Having now described my invention, what I claim and desire to secure by Letters Patentis: I 7 v 1. An arrangement for recordingpictures comprising a rotatable drum support for carrying a heat sensitive recording medium, means for projecting a heated recording fluid upon said support for producing a record thereon, means for controlling the amount of said heated recording fluid directed to said recording surface, said control means including a shutter and a diaphragm associated therewith whereby the said shutter is moved toward and away from the point of projecting said recording medium in proportion to the strength of signal-impulses reaching and influencing said diaphragm.

2. -An arrangement for recording pictures comprising a rotatable drum support for carrying a recording sheet having a heat 'reduceable metallic compound coating thereon, meansfor directing a hot air blast against said sheet for producing a chemical change to the body thereof, and means for controlling the amount of heat from said air blast which reaches said sheet, said control means including a shutter and a telephone diaphragm conthe fluid within said recorder, means for projecting the said heated fluid against said support, and a shutter means operable in accordance with the strength of received signals for controlling the amount of said heated fluid directed against said support surface.

4. In a recording system for pictures and the like, a nozzle system, a support for carrying a heat sensitive recording surface, means for moving the nozzle and said support, relatively to each other, means for introducing into said nozzle system a recording medium, means for heating said recordingmedium within said nozzle, means for projecting said heated recording medium from said nozzle toward said support, and a shutter means operable in accordance with received signals for controlling the amount of said recording medium projected from said nozzle to said support surface. I I

5. In a facsimile recording system, a nozzle system, means for supplying a recording fluid thereto, means for heating said recording fluid within said nozzle, means for projecting the said heated recording fluid from said nozzle, a support surface adjacent said nozzle for supporting a heat sensitive recording medium, and a shutter means having an opening therein positioned between said nozzleand said support for controlling the amount of heated recording medium directed from said nozzle to said support in accordance with received signalling impulses.

6. In a recording system for pictures and the like, a nozzle system, means for supplying a recording fluid thereto, means for heating said recording fluid, means for projecting said heated recording fluid from said nozzle system, a support surface for carrying a heat sensitive recording surface adjacent to said nozzle, means forobtaining a relative movement between said nozzle and said support surface whereby the recording action is produced over substantially the entire recording surface carriedby said support, and a shutter system interposed betwen said nozzle and said support for controlling the amount of heatedfluid projected from said nozzle to said support.

7. In a recording system for facsimiles, a support surface, means for projecting a heated gaseous blast against said support and normally with respect thereto, a shutter means interposed between said projecting means and said support surface for regulating the amount of said heated gaseous blast projected against said support surface, and a link system operable in accordance with received signal pulses for controlling said shutter means.

8. In a recording system for pictures and the like, a support surface for supporting a heat sensitive recording surface, means for projecting a heated air blast normally with respect to said support, means for moving said projecting means vertically and horizontally for adjusting the same with respect to said support, means for obtaining a relative movement between said support and said projecting means, and a shutter means intersaid heated air may be projected on said support surface.

10. An arrangement for recording PlCLUI'OS comprising a rotatable drum support for carrying a heat sensitive record surface, means for projecting a heated recording fluid upon said support for producing thereon a record of received pictures, and a shutter means for controlling the amount of said heated recording fluid reaching said recording surface.

11. An ar 'angement for recording pictures and the like including a heated recording system, a support adjacent thereto for carrying a heat sensitive recording surface, means for projecting the said heated fluid against said support, and a shutter means operable in accordance with the strength of received signals for controlling the amount of said heated fluid directed against said support surface.

12, In a recording system for pictures and the like, a nozzle system, a support for carrying a heat sensitive recording surface, means for moving the nozzle and said support relatively to each other, means for introducing into said nozzle system a recording medium, means for heating said recording medium, means for projecting said heated recording medium from said nozzle toward said support, and a shutter means positioned between said nozzle and said support for controlling in accordance with received signal pulses the amount of said recording medium rojected from said nozzle which reaches said support surface.

13. In a recording system for pictures and the like, a support surface for carrying a heat sensitive recording medium, means for projecting a heated recording fluid normally with respect to said support surface, means for obtaining a relative movement between said support surface and said fluid projecting means, and a shutter positioned between said fiuid projecting means and said support surface for controlling the amount of heated recording fluid projecting against said support surface.

14. In a recording system for facsimiles, a support surface, means for projecting a heated gaseous blast against said support and normally with respect thereto, and a shutter means interposed between said projecting means and said support surface for regulating the amount of said heated gaseous blast projected against said support surface in accordance with received signal pulses.

RICHARD HOWLAND RANGER.