US688642A - Writing-machine. - Google Patents

Description

No. 688,642. Patented Dec. l0, lam.

E. B. HESS.

WRITING MACHINE.

(Application filed Aug. 12, 1901.)

2 Sheets-Sheet (No Model.)

INVENTOR Q/ ATTORNEYS "m: 'uonms PETERS co. PHOTO-LITNO. WASHINGYON. n. c.

No. 688,642. Patented Dec. l0, I90I. E. B. HESS.

WBITING MACHINE.

(Application filed Aug. 12, 1901.) (No Model.) I 2 Sheets-Sheet 2.

; INVENTOR ATTORNEYS UNITED STATES Prion.

PATET EDWARD B. HESS, NEW YORK, N. Y., ASSIGNOR TO VISIBLE WRITING MACHINE (30., OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY. w

WRITING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 688,642, dated December 10, 1901. Application filed August 12, 1901. Serial No. 71,719. (No model.)

To aZZ whom it may concern;

Be it known that I, EDWARD B. HESS, a citizen of the United States, residing at New York city, county and State of New York, have invented certain new and useful Improvements in Writing-Machines, of which the following is a specification.

This invention relates more particularly to type-writing machines of the general character disclosed in United States patent to E. B. Hess, No. 644,515, dated February 27, 1900- that is to say, a machine in which the typebars are pivoted in a segment inclined to a vertical line and located at one side of the platen, the type-bar pivots usually occupyin g a space of less width than the key-levers. It is desirable, of course, that the key-levers should have a uniform touch or as nearly so as is feasible, and for this reason the points of connection between the key-levers and the type-bars should be a uniform distance or substantially so from the pivots of the keylevers. At the same time the type-bars should be so disposed as to respond accurately as nearly as may be to a strain or pressure that is uniform, or substantially so, with respect to all of the key-levers. To this end I arrange the points of connection between the keylevers and the type-bars in a transverse line that is, straight or substantially so--and preferably in a line that is in front of the ends of the segment or curve to which the typebars are pivoted and in rear of the central part of such curve. The heels of the typebars, which extend from their pivots, are given difierent angles, so that their angular relation with reference to the links or other devices which connect them with the typebars is most favorable to the operation of the respective type-bars. In this wayI accomplish the object sought or approximate it as closely as is feasible, so far as I know, in machines of this character.

In the accompanying drawings, Figure l is a plan View, and Fig. 2a longitudinal sectional skeleton view. Figs. 3 and 4 are detail views of two type-bars.

A is the platen, B B are the ribbon-spools, and (J is a segment,which,as shown, is set at an '50 angle of forty-five degrees to the horizontal plane of the machine. The type-bars D are pivoted in it respectively at d, a curved line passing through all the pivots conforming exactly or substantially to the curve of the segment. Key-levers E, shown in this instance as pivoted at the extreme rear of the machine and extending forward under the platen and segment 0, are each connected by a link 6 to the corresponding type-bar, and the points of connection 6 on all of the keylevers are arranged in a straight or substantially straight transverse line below the segment in front of its ends and in rear of its central part, as may be clearly seen in Fig. 1. The central type-bar may be shaped as shown in Fig. 4, d being its pivot-hole, and

the heel d is inclined upwardly and rearwardly at the angle shown or at a suitable angle and is formed with a hole 6 for the attachment of the link. The key-lever corresponding with the central type-bar is or may be directly below it, and the strain of the link is direct and the angle of its pull such as is most favorable for the proper actuation of the type-bar, as will be apparent from Fig. 2 of the drawings. In the drawings, Fig. 1, the two type-bars at the middle of the segment are shown as lying substantially directly above their corresponding keylevers, and both of them may advantageously be of the same shape as indicated in Fig. at and also in Fig. 2. On each side of these two central type-bars the relations of the respective key-levers to their type-bars change, in that the key-lever does not lie immediately below the type-bar but is to one side of it, and at the same time, owing to the curve in which the series of pivots is disposed, the relative relation of the type-bars and key-levers is further changed. I neutralize the disadvantages incident to this change of relation by correspondingly changing the inclination of the angular projection from the heel of the type-bar. Thus the bar D of Fig. 3, which is or may be the bar at one end of the series of type-bars, has its heel projecting downwardly and rearwardly, a line passing through the axes of the apertures d 6 being at an angle of about ninety degrees to a similar line drawn through the apertures of the type-bar shown in Fig. 4, which latter is one of the central bars. The angle at which the link e for the outer typebar drawsis seen at Fig. 2, and it will be observed that the angle of the link and its point of connection to the type-bar is, relatively to the pivot of the bar, such as to give the most favorable condition for the actuation of the type-bar and one which closely approximates that under which the central type-bar is operated. The heels of the type-bars between a central type-bar (illustrated in Fig. 4) and an end type-bar (illustrated in. Fig. 3) may be of gradually changing angles. Such a gradual change of the angle of inclination of the heels of the type-bars corresponding with the changing relation of the key-levers to the pivots of the type-bars is theoretically the most satisfactory. I find, however, that in practice the type-bars may be arranged in three or .more groups, those in each group being of identical construction. Thus, as seen in the drawings, Fig. 1, the fourteen typebars in the center of the whole series may be of the construction of the central bar or barsnamely,that shown in Fig. 4-while the seven bars at each end of the series may be of the construction shown in Fig. 3, and that practical satisfactory results as regards touch of the key-levers is obtained in that way.

To provide for alining the type, I bend or curve the type-bars intermediate their ends, as shown at m in Figs. 3 and 4. By increasing this bend with, for instance, a pair of pliers the bar may be shortened, and by flattening the curve or bend the bar may be lengthened. In this way I may readily aline the type carried by the bars with reference to the printing-point on the platen.

This inventionmay be applicable to writin g-machines differing from the general character of machine indicated in the drawings, and it is'not my intention to restrict myself to the identical arrangement of segment and platen and. type-bars which has been shown. For instance, the invention may be applied to front-stroke machines, in which the type-bar segment is generally arranged vertically and the printing-point on the platen is substantially in a horizontal plane passing through its 7 axis.

I claim as my invention- 1. In a writing-machine, the combination of a platen, a type-bar segment inclined to the horizontal plane of the machine, key-levers, type-bars pivoted in the segment and having projections extending beyond their pivots in dinferent angular relation 'to the horizontal plane of the machine according to the posi difierent angular relation to the horizontal plane of the machine according to the position of the type-bar in the segment, and operative connections connected to said projections and also connected in a straight transverse line, or substantially so, to the key-levers.

3. In a writing-machine, the combination of a platen, a type-bar segment inclined to the horizontal plane of the machine, key-levers, type-bars pivoted in the segment and having projections extending beyond their pivots in different angular relation to the horizontal plane of the machine according to the position of the type-bar in the segment and links connected to said projections, and also to the key-levers.

4. In a writing-machine, the combination of a platen, a type-bar segment inclined t0 the horizontal plane of the machine, key-levers, type-bars pivoted in the segment and having projections extending beyond their pivots in different angular relation to the horizontal plane of the machine according to the position of the type-bar in the segment, and link connections connected to said projections, and also to the key-levers in a straight transverse line or substantially so.

5. In a writing-machine, the combination of a platen, a type-bar segment inclined to the horizontal plane of the machine, type-bars pivoted in the segment and having projections beyond their pivots in difierent angular relation to the horizontal plane according to their position in the segment, key-levers arranged under the segment and occupying a space of-greater width than that occupied by the segment, and operative connections between said projections and the key-levers.

6. In a writing-machine, the combination of a platen, a type-bar segment inclined ,to the horizontal plane of the machine, type-bars pivoted in thesegment and having projections beyond their pivots in different angular relation to the horizontal plane according to their position in the segment, key-levers arranged under the segment and occupying a space of greaterwidth than that occupiedlby the segment, and operative connections connected to said projections and also to the key levers in a transverse straight line or substantially so.

7. In a Writing-machine, the combination of a platen, a type-bar segment inclined to the horizontal plane of the machine, type-bars pivoted in the segment and having projections beyond their pivots in different angular relation to the horizontal plane according to their position in the segment, key-levers arranged under the segment and occupying a space of greater width than that occupied by the segment, and direct link connections connected to said projections and also tothe keylevers in a straight transverse line or substantially so.

8. In a writing-machine, the combination of a platen, a type bar segment mounted at an angle to a horizontal plane passing through the axis of the platen, type bars pivoted therein, normally lying toward the front of the machine, adapted to strike the platen at a point normally in view of the operator, and having projections extending beyond their pivots in different angular relation to the horizontal plane of the machine according to the position of the type-bar in the segment, and means for operating the type-bars attached to said projections.

9. In a writing-machine, the combination of a platen, key-levers, a type-bar segment mounted at an angle to a horizontal plane passing through the axis of the platen, typebars pivoted therein, normally lying toward the front of the machine, adapted to strike the platen at a point normally in view of the operator, and having projections extending beyond their pivots in difierent angular relation to the horizontal plane of the machine according to the position of the type-bar in the segment, and operative connections connected to said projections and also connected in a straight, transverse line, or substantially so, to the key-levers.

10. In a writing-machine,the combination of a platen, key-levers, a type-bar segment said projections, and also to the key-levers in a straight, transverse line or substantially so. In testimony whereof I have hereunto subscribed my name.

EDWARD B. HESS. Witnesses:

EDWARD C. DAVIDSON, KATHARINE MACMAHON.

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