US1142568A - Type-writing machine. - Google Patents

Description

0. C. KAVLE.

TYPE wmnms MACHINE. APPUCATION, FILED NOV-13' 1909- V 1 12,568;. PatentedJune 8, 1915.

2 SHEETSSHEET 1.

THE NORRIS PETERS 50., PHO'IC-LlTHO" WASHINGTON, D. C.

0. C. KAVLE.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. 13, 1909.

Patented J 11116 8, 1915.

2 SHEETS-SHEET 2.

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THE NORRIS PETERS C(l,F'l lCflfO-LITHQv WASHINGTON, D. C.

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OSCAR C. KAVLE, OF SYRACUSE, NEW YORK, ASSIGNOR TO A. MOYER, SYRACUSE, NEW YORK.

' TYPE-WRITING MACHINE.

Specification of Letters Patent. Patentgd June 8 1915,

Application filed November 13, 1909. Serial No. 527,827.

- fication.

This invention relates more particularly to nnprovements in combined ribbon vibrat- 'ing and line locking mechanisms for visible writing typewriting machines.

The objects of the invention are to produce efiicientand desirable means of simple construction for vibrating a multicolor ribbon, or ribbon having fields of different character, whereby either field can be vibrated to and from position for printing, or the ribbon can be held stationary out of printing position; also to construct the ribbon vibrating mechanism so that the vibration of the ribbon relative to the platen will be substantially the same in both the normal and the shifted printing positions of the platen; also to provide means for locking the printing mechanism when the platen.

reaches a predetermined position at or near the end of a line, which means Wlll act the same whether the ribbon vibrator is in action or is silenced; and also to improve the construction of ribbon vibrating and line locking mechanisms in the respects hereinafter described and set forth in the claims.

In the accompanying drawings, consisting of two sheets: Figure 1 is a longitudinal sec-' tional elevation of a portion of a typewriting machine provided with mechanism em:

bodying the invention. Fig. 2 is a fragmentary sectional elevation in line 22, Fig. 3. Fig. 3 is a sectional plan view of the ribbon vibrating mechanism, on an enlarged scale, in line 33, Fig. 1. Fig. 4 is a cross section in line 4l4, Fig. 3, the pin 0 being shown in side elevation. Fig. 5 is a front elevation of the ribbon vibrating and line locking mechanism. Fig. 6 is a sectional elevation, on an enlarged scale, of the line locking mechanism, in line 6-6, Fig. 5. Figs. 7 and 8 are respectively elevations of the vibrator lever and long-throw actuating lever detached.

7 Like reference. characters refer to like parts in the several figures.

A, Fig. 1, represents the top plate of the main frame of the machine; B the platen;

an impression.

C the platen carriage; D one of the typebars, which are provided with two sets of type and are pivoted on a segment or support below theplaten so as to strike the front side of the platen; E a shift frame on which the carriage is supported and travels 1 transversely of the machine, and which is g pivoted at the upper rear portion of the frame so as to be swung vertically about a pivotal axis, indicated at c, Fig. 1, for placing the platen in printing relation with one or theother set of type on the type-bars; F theribbon which is wound from one onto the other of two spools located at opposite sides of the front portion of the machine;

G the vibrating ribbon guide, or vibrator, for moving the ribbon to and fromprinting position between the type and the platen; and H the universal bar which is. operated each time a type-bar is actuatedfor printing and operates the ribbon vibrator and the escapement (not shown) which controls the letter riage. V

The end plates of the carriage shown are connected below and in front of the platen by a scale bar coon which are adjustably the stems 1, of two segmental actuators I,

eachof which isarranged in rear of and is adapted to be struck by the type-bars on one half of thesegment. Only one actuator I and one arm h on the universal bar are shown in the drawings. One of the actuators is struck androcks the universal bar H each time a type-bar is operated to make The above mentioned parts are arranged and operate as in the Moyer typewriter and are thus briefly described so as to enable a proper understanding of this invention.

mounted to. slide vertically in a suitable upspace movementszof the platen car-y right guide K fixed to or formed with a bracket is which projects forwardly from the middle portion of the shift frame E and is connected to a vibrator lever L, for instance,-by the rearwardly bent lowerend ofthe vibratorentering a notch in the front end of the lever. ranged between short and long-throw actu- Thisvibrator lever isar- 100 The ribbon vibrator G is preferably l ating levers M and N, respectively, see Figs. 3 and i, the three levers being preferably pivoted on a common fulcrum pin 0 which passes through a bearing hole in a rearwardly projecting portion of the bracket is which has slots Z in which the levers are seated and are held from lateral movement. The two actuating levers M and N have arms connected respectively by links m and n to a rock arm a fixed to the universal bar H so that both of these levers always vibrate with the universal bar H.

' P represents a key which is preferably formed by a bent portion of the fulcrum pin 0, which latter is adapted to slide and rock in its bearing hole. The key P is adapted to engage n alined notches p provided in the three levers below the fulcrum pin to lock the vibrator lever to one or the other of the two actuating levers M and N. In the position of the key P shown in Fig. 4, it connects the vibrator lever L to the long-throw lever N so that the latter lever will swing the vibrator lever with it. By moving the fulcrum pin to the limit of its movement to the left, the key will'connect the vibrator lever to the short-throw lever M to be actuated thereby.

The arms of the two actuating levers to which the links m and n are connected are of di'fierent lengths and the links are pivoted to the rock arm a at different distances from the universal bar, so that when the vibrator lever is keyed to the short-throw lever M the vibrator lever and vibrator will have a short throw of proper length to vibrate the upper field of the ribbon to and from po- .sition for printing, whereas when the vibrator lever is keyed to the long-throw lever N the throw of the vibrator lever and vibrator will be increased sufficiently to vibrate the lower field of the ribbon to and from position for printing. If the key P is moved to an intermediate position it will not connect the vibrator lever to either of its actuating levers and the vibrator will remain stationary with the ribbon below the printing position so that the machine can be used for cutting stencils.

The vibrator lever L always vibrates on the same fulcrum and the universal bar and arm it always move the same distance, but by means of the short and long-throw actuating levers M and N and the links on and a the vibrator lever is given either of two different motions. Any suitable means can be employed for shifting the key P for thus keying the vibrator lever to one or the other ofits actuating levers or disconnecting it from both levers. In the construction shown, a shifting rod Q is provided for this purpose which is arranged to slide in bearing lugs depending from the top plate and has a forked arm 9 which loosely embraces a grooved nut g on one end of the fulcrum pin 0. The shifting rod Q is adapted to rock in its bearings and the forked or slotted arm Q thereof engaging the nut of the falcrum pin permits the fulcrum pin to move up and down with the shift frame when the platen is shifted without disengaging the nut from the arm. The open-ended slot of the arm 9 enables the nut of the fulcrum pin to be disengaged from the arm when it is desired to dismount the shift frame from the top plate. The shifting rod shown is moved by hand for shifting the fulcrum pin 0 and key P and is held, when adjusted, by a detent 9 Fig. 5, which is adapted to engage in one or the other of three notches in the shifting rod, but mechanism operated from a key at the keyboard of the machine similar to that shown in Patent No. 94:4,735, granted Dec. 28, 1909, to E. G. Latta, assignor, or any other suitable means, could be employed for moving the shifting rod Q and key P for changing the action of the vibrator.

The fulcrum pin 0' oscillates in its bearing whenever the key P is in position to connect the vibrator lever to either of its actuating levers. This is of considerable importance in saving the levers L, M and N from wear on the fulcrum pin, but when the key is adjusted to silence the vibrator, the fulcrum pin remains stationary and the actuating levers M and N then oscillate on the pin. The links m and n are placed so that when the platen is in the normal lower position shown, the lower ends of the links will lie below lines projected from the pivotal axis 6 of the shift frame through the pivots connecting the links to the rock arm n, and so that when the platen is shifted to its upper printing position the lower ends of the links will swing to corresponding positions above such line. This arrangement of the parts insures substantially like movements of the vibrator in both printing positions of the platen.

B, Fig. 6, represents a locking lever or dog which is pivoted in the bracket 70, conveniently by the upper securing screw for the vibrator guide, so that its free end can be swung into engagement with a shoulder r on the actuating lever M for the vibrator lever to lock said lever and the universal bar against action. The locking dog, which is normally held out of engagement with the lever M, as shown in Fig; 6, by a spring 7* of any suitable sort, has a yielding arm r with a forked end which normally supports the beveled head of a sliding bolt S up in the path of locking lugs s 8 Fig. 5, projecting downwardly from the right-hand marginal stop 0 The bolt S is slidably mounted in an abutment T which is secured to a rock shaft t and is normally held by a spring t in position for the marginal stops to strike it to limit the travel of the carriage.

When the end of the line is nearly reached, the first locking lug s engages the beveled. head of the bolt and depresses the bolt, which swings the locking dog into holding engagement with the lever M, thereby locking the universal-bar from. movement and,

preventing the actuation of the escapement,

ribbon vibrator, and the type-bars, and thus Patent No. 1,008,158, granted November 7 1911, except that in said'other mechanism the locking dog directly engagesthe ribbon vibrator lever and the ribbon vibrator cannot be silenced and the linelocking mechanism left in condition for use, whereas 1n the present mechanism, by employing the two actuating levers described for the vibrator lever and arranging the locking dog to engage one of these levers, it is possible to give the vibrator either of two different movements, or to silence it, and in all cases leave the line locking mechanism in condition for action.

While the mechanism hasbeen described as intended for actuating a single multicolor ribbon, or ribbon having two fields of different character, manifestly two separate ribbons arranged edge to edge could be employed in place of the single two-field ribbon, and the mechanism can also be used with a wide single color ribbon for printing with different portions thereof.

I claim as my invention: 1. In a typewriting machine, the combina tion of a ribbon vibrator, a lever which vibrates at the. type strokes and which is adapted to actuate said vibrator, means accessible for operation at will to connect said vibrator with and disconnect it from said lever, and a stop which is movable to aposition to cooperate with said lever to prevent the movement thereof and lock the ma chine from operation, substantially as set forth, v v r 2. In a t pewriting machine, the combination of a ribbon vibrator, a lever which vibrates at the type strokes and which is adapted to actuate said vibrator, means for connecting said vibrator with and disconnecting it from said lever, and a stop which is moved by the carriage when it approaches the end of its travel to a position to coiiperate with said lever to prevent movement thereof and lock the machine from operation, substantially as set forth.

3. In a typewriting machine, the combination of a universal bar, a ribbon vibrator, a

lever which vibrates at "all times with-said universal bar and which is adapted toactuate said vibrator, means for connecting said vibrator with and disconnecting it from said lever, and means which cooperate with said lever for locking the machine, substantially as set forth. i

4:. In atypewriting machine, the combination of two leverswhich vibrate at thetype strokes and have difierent throws, and a ribbon vibrator lever, said three levers being arranged side by side, and means for;connecting the vibrator lever to either of said other levers to beactuated thereby, substantially as set forth.

5. In a typewriting machine, the combination of two levers which vibrate at the type "strokes and have different throws, and a ribuon vibrator'lever, said three levers being arranged side by side, and means for connecting the vibrator lever to'either of said other levers to be actuated therebv or disconnecting it from both ofsaid levers, substantially as set forth. i

6. In a typewriting machine, the combination of a universal oar, two levers which are connected to and vibrate with the universal bar and have difierent' throws, a ribbon vibrator, a vibrator lever, said three levers connecting the vibrato-r lever to either of said other levers to be actuated thereby, substantially as set forth. 1 i

7. In a typewriting machine,the combination of a universal bar, two levers which are connected to and vibrate with the universal bar and have different throws, a line locking device which coiiperates with one of said levers for locking the machine, a ribbon vibrator, and means for connecting the vibrator to either of said levers to be actuated thereby, substantially as set forth.

8. In a typewriting machine, the combination of two levers which vibrate at the type strokes and have different throws, a ribbon vibra-tor lever, said three levers being arnation of two leverswhich vibrate at the type strokes and have different throws, a v

ribbon vibrator lever arranged between said other levers, a common fulcrum for all of said levers, and a key which ismovable to lock said vibrator lever to either of said other levers, substantially as set forth.

10. In a typewriting machine, the combination of two levers which vibrate at thev type strokes and have different throws, a

other levers, a sliding fulcrum for said lefulcrum and is operated by moving said fulcrum to lock said vibrator lever to either of said other levers, substantially as set forth.

11. In a typewriting machine, the combination of a universal bar, three levers pivoted side by side, connections between the universal bar and the two outer levers for giving said levers different throws, a ribbon vibrator connected to the middle lever, and a slidable device for connecting said middle lever to either of said outer levers or for disconnecting it from both of said outer levers, substantially as set forth.

12. In a typewriting machine, the combination of two levers, a rocking universal bar, links connected to said levers and connected to the universal bar at different distances from its axis, a ribbon vibrator, and means for disconnecting the vibrator from either of said levers and connecting it to the other lever to be actuated thereby, substantially as set forth.

13. In a typewriting machine, the combination of two levers, a rocking universal bar, links connected to said levers at different distances from their fulcrums and connected to a rock arm projecting from the universal bar, a ribbon vibrator, and means for disconnecting the vibrator from either of said levers and connecting it to the other lever to be actuated thereby, substantially as set forth.

14. In a typewriting machine, the combination of two concentrically pivoted levers, a rocking universal bar, links connected to said levers at different distances from their fulcrums and connectedto the universal bar at different distances from its aXis, a ribbon vibrator, and means for disconnecting the vibrator from either of said levers and connecting it to the other lever to be actuated thereby, substantially as set forth.

15. In a typewriting machine, the combination of a platen, means for shifting the platen from one printing position to another, a universal bar, levers mounted to shift with the platen, links connecting said levers to the universal bar and arranged to produce substantially like movements of said levers in the different printing positions of the platen, a ribbon vibrator, and means for connecting the vibrator to either of said levers to be actuated thereby, substantially as set forth.

16. In a typewriting machine, the combination of a platen, a pivoted shift frame for the platen, a universal bar, two levers fulcrumed on said shift frame, links con necting said levers to the universal bar and arranged to swing from one side to the other of lines projected from the pivotal aXis of the shift frame through the connections of said links with the universal bar when the shift frame is moved to shift the platen, a ribbon vibrator, and means for connecting the vibrator to either of said levers to be actuated thereby, substantially as set forth.

1?. In a tvpewriting machine, the combi nation of a ribbon vibrator lever which vibrates at the type strokes, and means for changing the throw of said lever including a fulcrum pin for said lever which is slidable for changing the throw of said lever and which vibrates with the lever, substantially as set forth.

18. In a typewriting machine, the combination of two levers which vibrate at the type strokes, a ribbon vibrator, a vibrator lever, said three levers being arranged side by side, and means acting by a single movement thereof to disconnect the vibrator lever from one of said first mentioned levers and connect it to the other lever for changing the movement of the vibrator, substantially as set forth.

19. In a typewriting machine, the combination of two levers which vibrate at the type strokes, a ribbon vibrator, and means acting by a movement thereof in one direction to connect the vibrator to one of said levers and by a movement thereof in the opposite direction to connect the vibrator to the other lever, and by a movement thereof in either direction to silence the vibrator, substantially as set forth.

Witness my hand, this 8th day of November, 1909'.

OSCAR O.- KAVLE. Witnesses ARTHUR K. LASHER, CHESTER V. RE D.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Eatents,

Washington, D. (2

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