US923099A - Type-writing machine. - Google Patents

Description

0- WOODWARD. TYPE WRITING MACHINE. APPLICATION FILED FEB. 16 1907. v r 923,099. Patented May 25. 1909.

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Patented May 25 1909.

oscan woonwaan or new YORK, N. Y., ASSIGNOR TO YOST WRITING MACHINE COMPANY,

' or ILION, NEW YORK, ii CORPORATION or NEW YORK.

TYFE-WRITING MACHINE.

theboroughof Manhattan, city of New York,

in the countyof New York and State of New I ,York,haveinvented certain new and useful Improvements in Type-Writing Machines,

of which thefollcwing is a specification.

My invention relates to'typewriting machines and" more particularly to the platen scales of such machines and to means for mounting the same, and the object of said in- A vention'is to provide simple and efficient meansof the character specified.

To the above and "other ends which Wlll hereinafter appear my inventlon consists in t the features of construction, arrangements of parts and combinations of devices which will be hereinafter described and set forth in the accompanying claims.

In the drawings, Figure 1 is an enlarged front elevation of a carriage of a front-strike typewriting machine with the scale devices of my invention applied thereto, parts being broken and sectioned away in this View.

Fig. 2 is. an enlarged end elevation of the same shown mounted in the frame of the machine. Fig. 3 is an enlarged detail end view of the scale plate.

' The frame of the machine comprises side plates land a top plate 2. Carriage rails 3 are supported on the frame and have oppositely. disposed V-shaped grooves for cooperation with anti-friction balls 4 which are likewise receivedin guide- ways 5 and 6 having oppositely disposed. \l-shaped grooves for the reception of said balls. The guide ways5 and 6' formhportions of a carriage truck 7to which a platen frame 8 is connectplatesofthe truck to form slotted bearings 17 in which screws l8are loosely received and arefree to move either vertically in the slots or longitudinally of the axes of the jscrews. .These screws terminate at their inner ends in pivots l9 andnuts 2O cooperate with each screw and bear on opposite faces I Specification of Letters Patent.

Application filed February 16, 1907. Serial No. 357,608.

Patented May 25, 1909.

of each of the slotted bearings 17 to rigidly secure the screw pivots in their adjusted po sitions in the bearings. A sheet metal scale plate 21 is bent as indicated in cross section in Fig. 3 and is provided with indices 22, the spaces between said indices corresponding to a letter space movement of the carria e and to the distance between the printed c iaracters. The scale plate is bent up to form a pocket 23 at the lower end thereof for the reception of reduced. ends 24 of spindles 25, one of the spindles being received in each end of the pocket 23 in the scale plate. These spindles are preferably soldered in place in the pocket in order to rigidly connect them to the scale plate.

The outer end of each spindle 25 is apertured for the reception of a pivot portion 19 of the associated screw 18 so that the scale plate and the spindles 25, rigidly secured thereto, are free to turn on the pivots 19 toward and away from the platen 15. A coiled spring 26 surrounds the right-hand spindle and is bent at 27 to bear against the front face of the scale plate, whereas the opposite end 28 of this spring is secured to the carriage truck in any suitable manner. The tension of the spring is thus exerted to maintain the upper edge of the scale plate against the platen as indicated in. Fig. 2. A longitudinal adjustment of the screws 18 effects a longitudinal adjustment of the scale plate to effect a proper adjustment of the indices relatively to the printing point, whereas the adjustment of the screws up and down in the slots 17 raises or lowers the upper edge of the scale plate with reference to the printing line sothat an adjustment of the scale plate may be effected longitudinally thereof and also transversely thereof. It will be observed that the platen and platen frame may be shifted independently of the scale plate which is carried by the truck. By this arrangement the scale plate may be placed" with its indicating edge nearer the printing line than is ordinarily the case, it merely being necessary to provide sufficient clearance for the types of those lower case characters which extend below thebaseline of the letters, such as the j, y, etc. An upward shifting movement of the platen frame carries the platen away from the scale plate and affords sufficient clearance for the lower case typewhen the upper case type is at the printing point. By arranging the indicating edge of the platen scale closer to the printing line it is possible to secure a more rapid and accurate adjustment of the paper.

The devices are simple in construction and may be readily attached to or disconnected from the platen truck and adjusted either horizontally or vertically to properly locate the scale and an individual adjustment of the scale is provided at each end thereof.

By constructing the scale and pivoting it in the manner shown back of the front face of the platen the edge of the scale may properly bear against the platen in both case positions thereof without acting as an appreciable obstruction to the platen in its movement from upper to lower case position and without bearing with undue force upon the paper at this time. Furthermore, by this arrangement there is no dropping or appreciable variation in the height of the upper edge of the scale when the platen is shifted to upper case position.

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

1. In a typewriting machine, the combination of a carriage truck, a platen frame shiftably mounted on the truck for upper and lower case writing, a platen carried by said platen frame, and a platen scale mounted on and supported wholl by said truck, the platen being shiftab e relatively to said platen scale.

2. In a typewriting machine, the combination of a platen shiftable for upper and lower case writing, and a platen scale wholly supported on a non-shifting member and spring pressed into contact with the platen and maintained fixed against case shifting movements with the platen.

3. In a typewriting machine, the combination of a carriage, a platen shiftable for upper and lower case writing, a platen scale carried and supported wholly by the carriage and maintained fixed against shifting movements with the platen, and means for adjusting said platen scale.

4. In a typewriting machine, the combination of a carriage, a platen shiftable for upper and lower case writing, a platen scale carried and supported wholly by the carriage and maintained fixed during the case shifting movements of the platen, and means for affording a longitudinal and a transverse adjustment of said platen scale.

5. In a typewriting machine, the combination of a platen, a platen scale, screw pivots cooperative with said scale and by which a longitudinal adjustment of the scale may be effected, and slotted bearings in which the screws are received and in which they may be adjusted to effect a lateral adjustment of the scale.

6. In a typewriting machine, the combina tion of a platen, a spring pressed platen scale, screw pivots cooperative with said scale and by which a longitudinal adjustment of the scale may be effected, slotted bearings in which the screws are received and in which they may be adjusted to effect a lateral adjustment of the scale, and nuts on opposite sides of each of said slotted bearings, said nuts being cooperative with said. screw pivots.

7. In a typewriting machine, the combina tion of a sheet metal scale plate bent at one edge to form a pocket, spindles seated and secured in said pocket at opposite ends thereof, and means for pivotally connecting said spindles to the carriage.

8. In a typewriting machine, the combination of a sheet metal scale plate bent at one edge to form a pocket, spindles seated and secured in said pocket at opposite ends there of, means for pivotally connecting said spindles to the carriage, and pivot pins adjustable longitudinally and laterally to effect a longitudinal and lateral adjustment of the scale plate. I

9. In a typewriting machine, the combination of a sheet metal scale late bent at one edge to form a pocket, spinr es seated and socured in said pocket at opposite ends thereof, said spindles having pivot receiving openings in the outer ends thereof, screw pivots which are received in the openings in said spindles, slotted hearings in which said screw pivots are received, and nuts cooperating with said slotted bearings on opposite sides thereof and with said screw pivots.

10. In a typewriting machine, the combination of a sheet metal scale plate bent at one edge to form a pocket, spindles seated and secured in said pocket at opposite ends thereof, means for pivotally connecting said spindles to the carriage, said means including pivot pins adjustable longitudinally and laterally to effect a longitudinal and lateral adjustment of the scale plate, and a coiled spring surrounding one of said spindles and fixed at one end and cooperating with the scale plate at the other end to turn it on its pivots.

11. In a typewriting machine, the combination of a carriage truck, a platen frame shiftably mounted on said truck for upper and lower case writing, a platen carried by the platen frame, a platen scale, slotted bearings in said truck, screw pivots received in said slotted bearings, and nuts on opposite sides of each of said slotted bearings and cooperative with said bearings and said screw pivots.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 15th day of February, A. D. 1907.

OSCAR IVOODWARD.

W'itnesses:

E. M. WELLS, M. F. HANNWEBER.

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