US1018062A - Type-writing machine. - Google Patents

Description

O. G. KAVLE. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 10, 1907. 1,018,062.;

Patented Feb. 20, 1912.

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Patented Feb. 20, 1912.

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0, G. KAV'LE.v TYPE WRITING MACHINE. APPLICATION FILED JUNE 10, 1907.

Patented Feb. 20, 1912.

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APPLICATION FILED JUNE 10, 1907. 1,018,062.

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Patented Feb. 20, 1912.

" the universal bar and UNITED STATES PATENT OFFICE.

OSCAR C. KAVLE, OF SYRACUSE, NEWYORK, ASSIGNOR TO HARVEY-A. MOYER, 0F

SYRACUSE, NEW YORK.

Specification of Letters Patent.

Application filed June 10, 1907. Serial No. 378,089.

bars, for operating the carriage escapement the r1bbon vibrator in or other part, such as visible writing machines, which is actuated whenever a type-key is operated to print a character.

The invention is especially applicable to visible writing machines in which the type strike the front side of the platen and which are provided with means for vibrating the ribbon into and out of the type strokes.

The principal objects of this invention are to reduce the dimensions and weight of its actuating devices so as to lessen the inertia thereof, thereby enabling greater speed of the machine with a lighter and easier touch; also toprovide a sectional actuator, or separate independent actuators for the universal bar, each of which sections or actuators is controlled by only a port-ion of the type-bar actions, for the purpose of lessening the size and weight of the parts which must be moved to operate the universal bar, and reducing the wear thereon; also to so construct and arrange the actuators as to insure uniform operation of the universal bar by the several type-bar actions; also to improve and simplify the construction of the universal. bar and actuators in the respects hereinafter described and set forth in the claims.

In the accompanying drawings, consisting of four sheets: Figure 1 is a. fragmentary longitudinal sectional elevation of a frontstrike typewriting machine provided with universal bar mechanism embodying the invention. Fig. 2 is a fragmentary transverse sectional elevation thereof, in line 2-2. Fig. 1. Fig. 3 is a fragmentary plan view thereof, partly :in section, omitting the parts above the broken away to disclose the underlying parts. Fig. 4 is a transverse sectional elevation thereof in line 4i-4, Fig. 1. Fig. 5

printing position at 'bv an auxiliary lever f and link pinion h and rack bar It frame top plate, which is partly.

afragmentary longitudinal sectional elevation thereof in line 5-5, Fig. 2.

modified construction.

Like letters of reference refer tolike parts in the several figures.

A, Fig. 1, represents the main frame of the machine having a top plate a; B the platen; G the platen carriage; D a shift frame on which the carriage is supported and travels transversely of themachine, and which is pivoted at the upper rear m of the main frame to swing vertically for shifting the platen, and is moved up and down by a rod (1 and eccentric d; E one ofthe type-bars which are pivoted on a suitable support or segment arranged vertically below the platen soas tostrike the front side of the platen tomake the impression F one of the key levers, each of which is operatively connected to one of the type-bars, as f; G the ribbon or ribbons; g the vibrating guide for moving the ribbon or ribbons to and from the printing position at the type strokes; and H the 'escapement connected as by the to the carriage to produce the step'by-step, or letter space, movements of the carriage. These parts may be of known or any suitable construction and are only shown herein and thus briefly described to aid in a better anglerstanding of the invention. :9

I represents a rock shaft. or bar. which performs, in this machine, the functions of the universal bar and which will be hereinafter termed the universal bar, and K K represent actuators, or devices for actuating said universal bar. The universal bar, in the machine shown, operates both the carriage escapement and the ribbon guide or vibrator and is preferably arranged horizontally transversely of the machine in a position in rear of the segment andbetween the carriage-escapement and the ribbon guide or vibrator, rock or oscillate in suitable bearings Z on hearing brackets L secured to and depending from the top plate of the machine. These bearing brackets are conveniently made from sheet metal stampings bent into the shape best shown in Figs. 4 and 5. The universalbar is very short, see Fig. 3, and consequently can be made proportionately light and slender and yet be'as rigid as a larger Patented Feb. 20, 1912.

F g. '6 IS a fragmentary sectional elevation of a being journaled to bar of "greater length. The universal baris provided with arms 77 2', Figs; 1. and 3, conveniently-made in one piece, which extend to opposite sides thereof, the former arm being connected by a rod F, or other means, to a lever or other part of the carriage escapement for operating the same, and the latter arm being connected by a link i and lever 2' guide 9 for vibrating it. The universal bar is also provided with two other arms depending therefrom near its bearings and adapted to be struck by the actuators for rocking the universal barn The arrangement of the arms on the universal bar and the direction in which they project therefrom depends upon the relative location of the universal bar, its actuators and the parts actuated thereby, and may difi'erfor different arrangements of such parts.

The universal bar actuators K K are preferably arranged above .the type-bar segment in a position to be struck by the typebars just before the latter strike the platen, so that the actuators 'will be struck sharp blows and driven quickly rearwardly. The actuators consist of thin bars or strips which are preferably curved and arranged end to end concentrically with the type-bar segment or pivot bearings, and rigidly connected rearwardly-extending stems or rods 79. The bars extend from a point near the center of the segment approximately to the ends thereof, each being long enough to be struck and operated by the adjacent half of the type-bars on the segment. Each actuator preferably has two stems or rods 70 which extend rearwardly from the actuator at substantially equal distances from its ends, through suitable guide holes in the bearing bracket L in rear thereof. ,7

M, Figs. 1 and '2, represents rocking hangers having relatively long shafts pivoted to suitable lugs or bearings m, on the front portion of the top plate a, and arms depending from the ends of said shafts and pivoted at their lower endsto the guide rods or stems of the actuators. The hangers M and bearing brackets L movably support the actuators. The rocking hangers for the actuators are arranged at the opposite sides of the center of the segment at an angle to each other and substantially at rightangles to radial lines passing through the printing point, the centers of the actuators, and the segment at points half way between its centerand ends, so that the actuators will always be held parallel with the plane of'the segment and both ends of each actuator will move the same distance when the. actuator is struck by a type-bar no matter at What portion of its length the type-bar strikes it. The arms of the rocking hanger being seaccd a relatively great distance apart: acid the stability of the actuator.

I L the actuator, is or other connections, to the ribbon This arrangement of the actuators permits the escapement to be adjusted to trip at the best time to produce the greatest speed of the machine, as there .is no objectionable variation in the action of different typebars. One of the stems of each actuator, preferably the one nearest the inner end of arranged in front of each of the depending arms i of the universal bar so as to'strike the same to rock the universal bar when the actuator is driven rearwardly. The actuators and universal bar are normally held in the position shown in the drawings, and returned to such position after actuation by a suitable spring or springs, separate springs being preferably employed for the actuators and the universal bar. As shown, coil springs n surrounding the stems of the actuators between shoulders thereon and the bearing brackets L are employed for returning the actuators, and springs a attached to the depending arms of the universal bar and to forwardlyextending parts a of the bearing brackets L, for returning the universal bar. The.

separate springs acting independently on the actuators and universal bar are preferable as thereby the movement of onepart is not dependent upon that of the other. The universal bar can then be arrested in its return movement in such position, see Fig. 1, that its depending arms are held out of contact with or spaced slightly from the actuator stems. The escapemcnt lever limits the return movement of the universal bar and holds its depending arms out of actual contact with the actuator stems in the normal position of the parts. This arrangement enables a. slight movement of the actuators before the universal bar is engaged and rocked, thereby permitting the actuators to be started and their inertia overcome before they act upon the universal bar, which permits a quicker and easier operation of the universal bar and the escapelnent. The separate springs for the actuators and universal bar also allow the former to return in advance of the latter or during the small fraction of time required for the operation of the escapement, the actuators thus serv; ing to start the type-bars quickly on their return movement, and further assisting in the possible speed of the machine. Furthermore this arrangement admits of slight variation in the adjustment of the escapement connection with the arm The actuators are independent of each other and as both 'cannot be struck by the same type-bar only one can be moved at a time. The short actuators can be made lighter than a single long one without making them less rigid, and the short, light actuator combined with the short universal bar greatly reduces the weight of the parts that move with each. character printed. The

universal bar with either of the actuators weighs less than half as much as the parts that do thesa-me work in machines as more commonly constructed, and this saving in weight is accomplished in the parts that have the greatest influenceon the speed of the machine. The essential idea is to. provide a short, light universal bar, withiseparate light actuators each arranged to transmit motion from a part only of the type actuating. keys or levers. Not only is the weight of the parts which must be moved with each character printed lessened, but the work of tripping the. escapement is divided between the actuators, and the wear; on the actuatorsand their bearings is halved and wear. in these' parts is more harmful than in the universal bar as it causes an unequal action in the type-bars.- The universal bar and its bearings are subject to greater wear than either of the actuators, but owing to its little weight it does not wear as rapidly as a larger, heavier bar, and the universal bar located and mounted as described can be easily replaced at small expense.

'The two actuators are preferably curved and arranged concentrically with the typebar pivots to be actuated directly by the type-bars as described, but the advantages of such arrangement would be realized in part, at least, by-the use of two separate actuators, or a two-part actuator, arranged for. each actuator. or part to be acted upon by one-half of the key leversor other parts of the type actions. For example, Fig. 6 shows a construction in which the universal bar actuators K one of which is shown, are arranged in rear of the upper ends of the auxiliary levers f to be struck and actuated by these levers and the connecting links f.

The auxiliary levers and links could be constructed for either one of these parts to project far enough beyond the other to alone strike the actuators, if preferred. The auxiliary levers are arranged in rear of the type-bar segment to be moved rearwardly by The actuators and universal bar are constructed and 'mounted as in the former construction except that they are located a little farther to the rear in the machine.

I claim as my invention: 1. In a typewriting machine, the combination of a series oftype actions, a rocking universal bar, an escapement operated by said universal bar, and a pair of universal Jar actuators each acting to transmit motion from. one half of the type actions to the universal bar, substantially as set forth.

2. In a. typewriting machine, the combination of a series of type actions, a carriage escapement, a 'ribbon vibrator, a unlversal bar arranged at the rear portion of the ma.-

chine between said escapement and said ribbon vibrator and operatively connected to each, and a plurality of universal bar actuators each acting to transmit motion from a plurality of said typeactions to the universa l bar, substantially as set forth. 4

a typewriting machine, the combination of a series of type actions, a rocking universalbar, an escapement operated by said universal bar, a ribbon vibrator also operated by the universal bar, and a pair of independent, universal bar actuators each acting to transmit motion from one half of the type actions to the universal bar, substantially as set forth.

4. In a typewriting machine, the combina tion of aseries of type actions, a rocking universal bar, a ribbon vibrator, an escapement, connections to transmit motion from the universal bar to the vibrator and escapement in diilrent-directions, and a pair-of independent universal bar actuators each serving to transmit motion from one half of the type-actions to the universal bar,

- substantially as set 1 forth.

5. In a typewriting machine, the combinahlOl'l of a universal barconsisting of a rock shaft having rigid arms projecting therefrom in three difierent directions, an actuator actingon one of said arms, and an escapement and ribbon vibrator each. of which is connected to one of the two remaining arms, substantially as set forth.

6. In a typewriting machine, the combination of a vertically arranged segment, a series of type-bars mounted thereon, a pair of actuators arranged substantially conceneach actuator. independently to transmit motion to the escapement, substantially as set forth.

7. In a typewriting machine, the combination of a segment, a series of type-bars mounted thereon, a,pair of curved universal bar actuators arranged each to be struck by one half. of the type-bars, and a universal bar having a part opposite to' each actuator to receive motion from either actuator independently of the other, substantially as set forth.-

8. In a typewriting machine, the combination of a vertically arranged segment, a

series of type-bars mounted thereon, a pair of independent universal bar actuators arranged each to be struck by one half of the type-bars, and each having a rearward extension, and a universal bar having arms to be engaged by extensions of said actuators, substantially as set forth.

9. In a typewri-ting machine, the combination of a vertically arranged segment, a series of type-bars mounted thereon, a pair of independent curved universal bar actuators each extending substantially one half the length of the segment and substantially concentric therewith, rearwardly extending supportsc'onnected to the actuators, and a rocking universal bar having a projecting arm'tobe struck by one of the supports for each actuator, substantially as set forth.

' 10.. .In a typewrit-ing machine, the combination of a'segment', a series of type-bars mounted thereon, a pair of independent universal bar actuators. arranged "each to be struck by one half of the type-bars, a'

universal barhaving parts located opposite to the inner end of both actuators to be moved by either of them, and'separate retracting springs for the universal bar and for each of the actuators, substantially as ,set forth.

11. In a typew-riting. machine, the combination of a segment, a series of type-bars mounted thereon, a rocking universal bar, and a. pair of actuators each actuated by one half of the type-bars, and each acting independently of the other directly on the universal bar, substantially as set forth.

12. In a typewriting machine, the combination of a-segment, a series of type-bars ,mounted thereon, a rocking universal bar,

nation of a series of pivoted type-bars, a rocking universal bar, an actuator for said universal bar disconnected from said universal bar and arranged tov transmit motion from the type-bars to said universal bar, and a rocking support for said actuator,

substantially as set forth.

15. In a typewriting machine, the combination of a segment, a series of type-bars mounted thereon, universal bar actuators, a rocking support plvotally connected to each ofthe actuators, and a universal bar arranged to be actuated by each of ators, substantially as set forth,

16. In a typewriting machine, the combination of a segment, a series of type-bars mounted thereon, a pair of independent actuatorseach actuated by one half of the type-bars, a pair of'rocking supports for said actuators arranged at right angles to radial lines passing through the printing said actu- 14. In atypew'riting machine, the combimounted thereon, independent actuators each actuated by a portion of the type-bars, a rearWardly-extending stem connected toeach actuator, guide bearings for each of said stems, a universal bar actuated by each of said stems, and a ocking support having a pair of arms pivoted to each of said actuators, substantially as set forth.

18. In a typewriting machine, the combination of a segment, a series of type-bars mounted thereon, independent segmental actuators each actuated by a portion of the type-bars, a pair of rearWardly-extending sliding supports for each actuator, a universal bar having an arm or lever arranged to be actuated by one of each pair of said supports, and a retracting spring arranged on one support of each pair, substantially as set forth.

19. In a typewriting machine, thecombination of a segment, a series of typebars mounted thereon, independent segmental actuators each actuated by a portion of the type-bars, rocking supports having arms pivotally connected to each actuator sub s'tantially midway between its center and ends, a universal bar having arms substantially opposite to the inner arms of said rocking supports, and connections between each arm of the universal bar and the inner arm of one rocking support, substantially as set forth. I

20. In a typewriting machine, the combination of a series of type-bars pivoted on .a substantially vertical segment, a two-part segmental. universal bar actuator arranged adjacent to the type-bar pivots, a pair of rocking supports in rear of and above said segment and having their inner ends located near the center of the segment. said rocking supports extending outwardly and up Wardly toward the ends of the type-bar segment, each rocking support having a pair of arms pivotally connected to each part of the actuator, a rocking universal bar common to both actuators, and connecting means between said universal bar and each of the actuators. substantially as set forth.

' Witness my hand, this 6th day of June, 1907.

OSCAR C. KAVLE.

Witnesses:

Orro A. SCHILLY, CHESTER. H. Ram.

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