US788808A - Type-writing machine. - Google Patents

Description

F. A. YOUNG.

PATENTED MAY 2, 1905.

TYPE WRITING MAGHYNE.

APPLICATION FILED FEB. 2. 1904.

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H15 TTDR'NEY STATES Patented May 2, 1905.

PATENT OEETCE.

FRANK A. YOUNG, OF SYRAOUSE, NEW YORK. ASSIGNOR TO THE MONAROH TYPEWRITER OOMPAN Y, OF SYRAOUSE, NEW YORK, A CORPORATION OF NEW YORK.

SPECIFICATION forming' part of Letters Patent NO. l88,808, dated May 2, 1905.

Application filed February 2, 1904. Serial No. 191,662.

To all whom I; mfc/y concern:

Be it known that L FRANK A. YOUNG, a citi- Zen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in TypeNVriting Machines, of which the following is a specilication.

My invention relates to type-writing ma chines, and has for its object to provide improved platen and carriage scales for such machines.

M y invention consists in certain parts, improvements, and combinations, which will be described hereinafter and which will be partieularly pointed out in the claims.

1n the accompanying drawings, Figure 1 is a front elevation of so much of a type-writing machine as is necessary to illustrate my invention. Fig. 2 is an end elevation of the same. Fig. 3 is a top plan view of my scale and its supports.

My invention is more especially applicable to front-strike machines, and 1 have accordingly shown it applied to the Monarch typewriter. The top plate 1 of this machine carries uprights 2, which support tracks or rails 3, which support the paper-carriage 4 b v roller-bearings, as shown. The carriage has at each end a forwardly-projecting arm 5, and in these arms there is journaled the shaft 6 of the cylindrical platen 7. The types are arranged to strike against the front face of the platen 7. and the usual inking-ribbon 8 is supported and guided by a ribbon guide or vibrator 9. The ribbon normally stands a little below the line of writing and is elevated to cover the printing-point whenever a key is struck to print. To this end the guide 9 is connected at its lower end, as shown in Fig. 2, to an arm 10, which extends forward through a slot 11 in a plate 12, which is secured by screws 13 to lugs or brackets 14. depending from the top plate 1. rThe arm 10 is vibrated whenever a key is depressed by means which are not shown, but which are `set forth in pi'ior patents. The ribbon-guide 9 is forked and is supported and guided by a bracket 15, which is secured in front of the plate 12 by screws 16 and which has two upwardly-extending arms or posts 17, which guide the upwardly-extending branches of the forked rib bon-guide 9.

My scale is mounted on the carriage of the machine, and said carriage is formed with two lugs 18., Fig. 2, to each of which a forwardlyextending spring-arm 19 is secured by a headed screw 20, which passes through an elongated slot 21 in the rear end of the arm 19. The arms 19 extend underneath thc platen 7 and have their forward ends bent upward. as shown at 22, and these upwardly-bent ends of the arms 1%) are secured to the ends of the scale-plate 23 to support the same. Said scaleplate extends longitudinally of the platen in front of the same and below the line of writing and preferably consists of a single piece of metal bent into a shape which is best shown in Fig. 2. ln said Fig. 2 said plate and the other parts in front of and below the platen are shown in vertical section on a plane passing through the center of the machine. The upper part 211 of the plate lies in a su bstantially vertical plane, and its upper edge is straight and is held against the platen or against the paper by the resilience of the spring-arms 19, which also causes the scaleplate to accommodate itself to different thicknesses of paper. The plate 23, and more especially the upper part 24C thereof, constitutes a platen-plate. In the present instance, as shown in Fig. 1, the upper part 24 of the plate 23 is graduated and constitutes the platen-scale of the machine.V Below the platenscale the plate is bent backward or offset, as shown at 25, and thence downward and forward, as shown at 26. rlhe lower portion 26 of the scale-plate is graduated to correspond with the upper part and constitutes the earriage-scale of the machine, which is read by reference to an index 27. lt will be seen that by the bend 25 the scale-plate is corrugated in the direction of its length and for nearly its entire length. Near each end the plate is cut part way across at 28, and the extreme end portions 29 of the plate are left straight, and to these straight portions the upturned ends 22 of the arms 19 are secured by riveting, soldering, or

otherwise. As here shown, the index 27 consists of a pointer, which is formed of the strip of metal stamped out of the plate 12 to form the slot 11. The strip is cut out at the sides and bottom, but not at the top and is bent upward to form the pointer. It will be understood that any other sort of index or indicating device may be employed instead of that here shown. rI`he elongated slots 21 in the arms 19 afford an adjustment of the scale-plate longitudinally of the platen.

A type-bar a is shown by dotted lines in Fig. 2 in printing position. It will be perceived that when the type-bar is in this position the scale lies back of said type-bar and between said type-bar and the platen.

For a double-type or single-shift machine it is necessary in order to clear the types that the top edge of the platen plate or scale be arranged at least two single line-space-feed units below the bottom of the line of writing. When a sheet of paper is inserted in the machine, the operator may adjust the paper so that the line on which it is desired to write registers with the top edge of the platenscale, and he may then bring this line accurately to the printing-line by one doublespace movement or two single-space movements of the line-space mechanism. For this use it is not necessary that the platen-plate be graduated, and the upper line of graduations may accordingly be omitted, if desired. The platen-scale lying in the position indicated, the part thereof nearest the center of the machine is more or less hidden behind the ink-ribbon and its guiding devices, and hence the platenscale is not so fully adapted to be used also as a carriage-scale. Moreover, the platen-scale could not incline downward and forward from its upper edge without interfering with the ribbon mechanism; but by forming the scaleplate with an offset bend in the manner which has been described I am able to incline the carriage-scale downward and forward, so as to dispose said scale in a plane which is approximately at right angles to the line of sight of the operator of the machine without projecting the lower edge of said scale so far forward as to interfere with the ribbon mechanism. rIhe eye of the operator is in front of and above the scale-plate, and the inclination of the carriage-scale 26 in a plane approximately at right angles to the line of vision adds greatly to the ease with which the scale may be read. It is also convenient to have the carriage-scale close to the platen-scale and the line of wrting. It will be observed that the graduations of one scale are in line with those of the other and both read from left to right. It will also be observed that the index 27 and the adjacent portion of the carriage-scale are plainly visible to the operator below the ribbon and between the guide-posts 17 of the ribbon-vibrator. The bending' of the scaleplate not only enables me to place the carriagescale in a position where it is most convenient for use and to set it at an angle which makes it easy to read, but it also greatly stiifens the scale-plate. My invention is not limited to this precise construction, however.

So far as I am aware it is new to providea front-strike type-writing machine with acarriage-scale lying near the platen and below the line of writing and in a plane approximately at right angles to the operators line of sight. It is also new to provide such a Inachine or, so far as I am aware, any form of type-writing machine with a platen-scale and acarriage-scale one beneath the other and having their surfaces at an angle to each other, whether said scales are of the same piece of metal or not. Itis also new to provide a bent plate one portion of which constitutes a platenplate and another portion of which has its surface at an angle to that of the first-named portion and is graduated to constitute a carriagescale whether said platen-plate is graduated to form a platen-scale or not.

By an inspectionfof Fig. 2 it will be seen that the graduated surface of the platen-scale lies in a plane which is substantially tangent to the platenat the printing-point and that the graduated surface of the forwardly-projecting carriage-scale lies in a plane which intersects the platen.

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

1. In a type-writing machine, the combination with the platen and the type-bars carrying types arranged to strike said platen at a point on the front face thereof, of a bent scale lying below the line of writing and between the platen and a type-bar-when said type-bar is in printing position and having graduated surfaces which are disposed at diiferent angles.

2. In a type-writing machine, the combination with the platen and the types arranged to strike the platen at a point on the front face thereof, of a scale lying below the line of writing and having corresponding graduated surfaces which aredisposed at different angles, one of said graduated surfaces being in position to serve as a platen-scale and the other of said graduated surfaces being in position to serve as a carriage-scale; and an index for said carriage-scale.

3. In a front-strike type-writing machine, the combination with the platen, of a platenscale lying below the line of writing; astraight carriage-scale lying beneath the platen-scale and disposed in a plane approximately at right angles to the line of sight of the operator of the machine, and an index for said carriagescale.

4. In a front-strike type-writing machine, the combination with the platen, the ink-ribbon and the means for guiding said ink-ribbon, ofaplaten-scalelyingbelow theline of writing; astraightcarriage-scalelying belowthe platenscale and the ribbon and disposed at an angle IOO IOS

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to the platen-scale so as to be approximately at right angles to the line of sight of the operator of the machine; and an index for said carriage-scale.

5. In a front-strike type-writing machine, the combination of a platen, a platen-scale lying in front of the platen below the line of writing', a carriagescale lying below the platen-scale and disposed at an angle thereto so as to be approximately at a right angle to the line of sight of the operator of the machine, an index for said carriage-scale; a ribbon, and a support for supporting said ribbon near the printing-point, said support having below the ribbon an opening through which said carriage-scale and index are visible.

6. In a front-strike type-writing machine, the combination of a platen; a straight inclined carriage-scale lying near the platen and below the line of writing and having its surface approximately at right angles to the line of sight of the operator of the machine; and anl index for said carriage-scale.

7. In a front-strike type-writing machine, the combination with the platen, of a platenscale and a carriage-scale having' a xed relation to each other, said carriage-scale lying beneath the platen-scale and extending in the same direction therewith and having its graduated surface at an angle to the graduated surface of the platen-scale; and an index for said carriage-scale.

8. In a type-writing machine, the combination of a platen, a plate lying adjacent said platen and having a longitudinal bend whereby the upper and lower parts of its surface are disposed at different angles, the upper part of said plate constituting a platen-plate and the lower part being graduated to constitute a carriage-scale; and an index for said carriage-scale. 9. In a type-writing machine, the combination of a platen, a plate, the surface of which is bent longitudinally to form a platen-plate portion 24, an offset portion 25 and acarriagescale portion 26, said platen-plate portion, oiset portion and carriage-scale portion being disposed at different angles, and an index for said carriage-scale.

10. In a front-strike type-writing' machine, the combination of a platen; a platen-plate having a longitudinal oliset bend whereby two parts of its surface are disposed at different angles, one of said parts having a straight edge lying against the platen and the other part having graduations and constituting a carriage-scale; and an index for said carriage-scale.

ll. In a front-strike type-writing machine, the combination of a platen, a plate having a straight edge lying against said platen below the line of writing and having its surface extending downward from said straight edge, thence bent backward toward the platen, and thence bent and extending' downward and forward at an angle approximately perpendicular to the line of vision of the operator of the machine, the downwardly and forwardly extending portion being graduated and constituting a carriage-scale, and an index for said carriage-scale.

12. In a front-strike type-writing machine, the combination of a platen, a plate consisting of a piece of sheet metal having a straight edge lying against the platen below the line of writing and extending downward from said straight edge, thence bent back toward the platen and thence bent and extending downward and forward at an angle approximately perpendicular to the line of vision of the operator of the machine, the downwardly and forwardly extending portion being' graduated and constituting a carriage-scale, and an index for said carriage-scale.

13. The scale-plate herein shown and described comprising an upright platen-scale, aninclined carriage-scale and an intermediate offset bend.

14:. In a front-strike type-writing machine, the combination with the platen, of a platenscale substantially tangent to the platen at the printing-point; and a forwardly-projecting carriage-scale lying parallel with and below the platen-scale and graduated on its upper surface, said carriage-scale being disposed at an angle to the platen-scale and substantially at right angles to the line of vision of the operator of the machine.

' l5. `In a front-strike ty1,)e-writing machine, the combination with the platen of `a platenplate substantially tangent to the platen at the printing-point; and a forwardlyprojecting carriage-scale contiguous to, parallel with and beneath said platen-plate, said carriage-scale being' graduated on its upper surface and disposed at an angle to said platen-plato and substantially at right angles to the line of vision of the operator of the machine.

1G. In a front-strike type-writing machine, the combination with the platen of a carriagescale parallel with and lying contiguous to the platen below the line of writing and having a graduated surface, the plane of which is inclined to the vertical and intersects' the platen.

17. In atype-writing machine, the combination with the platen of a platen-scale lying' below the line of writing' and having a graduated surface, the plane of which is substantially tangent to the platen at the printingpoint; and a carriage-scale arranged longitudinally of the platen and lying below the platen-scale and having a graduated surface, the plane of which intersects the platen.

Signed at Syracuse, in the county of Onondaga and State of New York, this 28th day of January, A. D. 1904.

FRANK A. YOUNG. Witnesses:

Pnacr RIDINGS, RAYMOND L. WILLIAMS.

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