US672849A

US672849A - Type-writer.

Info

Publication number: US672849A
Application number: US22328A
Authority: US
Inventors: Bernard Granville
Original assignee: Mossberg & Granville Manufacturing Co
Current assignee: Mossberg & Granville Manufacturing Co
Priority date: 1900-02-05
Filing date: 1900-07-02
Publication date: 1901-04-23
Anticipated expiration: 1918-04-23

Description

Nu.67`2,s49. Patented Apr'. 23, 190|.

B. GRANVILLE.

TYPE WRITER. (Application med .my 2, 1900.)

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No. 672,849. Patented Apr. 23, |90|.

B. GRANvlLLE. TYPE WRITER. x (Application led July 2, 1900.) (Ilo lodel.) 3 Shasta-Shaot 2.

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B. GRANVILLE.

TYPE WRITER.

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UNITED STAT-Es 'PATENT OFFICE.

BERNARDAGRANVILLE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO TI-IE MOSSBERG du GRANVILLE MANUFACTURING COMPANY, OF SAME PLACE.

TYPE-WRITER.

SPECIEICATION'forming part of Letters Patent No. 672,849, dated April 23, 1901.

vOriginal application led February 5, 1900, Serial No. 4,029. Divided and this application filed July 2, 1900. Serial To all whom it may concern,.-

Be itknown that I, BERNARD GRANVILLE, a citizen of the United States, residing at Providence, Rhode Island, have invented certain new and useful Improvements in Type-Writers, of which the following is a specification. My invention is an improvement upon that form of type-writer disclosed in Letters Patent of the United States granted me Octoberl 1o 27, 1896, No. 570,433, and my present case is a division of that filed by me in the United States Patent Office February 5, 1900, Serial No. 4,029.

In the present machine I have provided v means whereby a portion of the printing mechanism, in this instance the type-bars, may be shifted and set in position for printing either upper or lower case, and from either position the parts may be temporarily shifted zo into the other position when it is desired to print a comparatively small number of letters from the other case type.

In the drawings, Figure 1 is a plan view of the machine, the paper-carriage and other parts being omitted. Fig. 2 is a back view with the paper-carriage and other parts omitted. Fig. 3 is a part side elevation and partly a sectional elevation of the machine with unnecessary parts omitted. The carriage is 3o omitted and the parts relating to the escapement are also omitted, the present case being limited to the type-bar action. Fig. 4 is a detail view of the dividing-comb for the typebars.

In this improved machine the type-bars converge and are guided to the printing-point by converging guide-plates a, carried on a cradle-frame h, pivoted at c to the side frames of the machine, these parts being similar to 4o those in the machine shown in the patent referred to. The type-bars are operated from the key-levers d, only a few of which are shown in the drawings, through the bell-crank levers e and the links f. Only two of these 'type-bars 60 are shown for convenience of illustration in Fig. l. I have deemed it sufficient to show the platen diagrammaticallyin Fig. 3 and in plan view in Fig. l at X without showing the details relating thereto.4

(No model.)

guide walls or sides, is in the lowest position in relation to the printing-point, and they` form a guide-box which rests in its lowest position by gravity. A spring q, connected to theframe at q', tends th rough a series of con-v Inections to raise the cradle-frame into its upmost position for. printing caps; but when lower-case printing is to be done the cradleframe is relieved from the power of this spring 6o and the cradle-frame is allowed to rest in the lowest position by gravity.

Arms k and m on a square shaft l, journaled in the side frames, are connected by a link o, having a forked end 80, to a depending arm p of the cradle-frame. The-spring q, pulling on the arm m of the square shaft,V will push the fork 8O, and thus lift the cradleframe for upper-case printing, and in order to do lower-case printing the pull of the spring 7o q is withdrawn from the cradle-frame by a locking-lever t', which is pivoted to the frame and has an armj to bear on the arm lo of the square shaft, and when this locking-lever is set the link o, with the fork 80, isdrawn forp ward and the cradle-frame is allowed to drop by gravity for lower-case printing. The locking-lever i is held in this position for lowercase printing by the springn, connected therewith and with the frame. In order to change 8o from lower to upper case or cap printing, thel cradle-frame b is tilted upwardly in the direction of arrow 61, Fig. l3, by means of a key g, the lever of which is connected by an adjustable link hwith the depending arm' 85 p of the cradleframe. When this key is depressed, the cradle-frame is tilted, so that the converging guide plates o. are raised, and the type bars will then be guided to present the upper-case or cap type to the 9o printing-point. In order tocontinue printing upper-case characters, the locking-lever i is turned by moving its upper end to the right in Fig. 3 to release the arm k, and then the spring q, connected to the main frame and to the arm m, exerts its force to tilt the cradleframe upwardly and hold it in this position until it is desired to resume the printing of lower-case letters, at which time the lockinglever is moved to the position shown in Fig. 3, which, through the described connect-ions, will withdraw the force of springqand allow the cradle-frame to tilt downwardly by gravity. If during the time that the machine is set for upper-case printing (at which time, as above set forth, the frame is held up by the springq and the locking-lever 'i is out of action) it is desired to print one or more small letters, a key r is depressed. The lever of this key is connected With the square shaft Z, and, as shown, will when depressed rock the square shaft and withdraw the power of the spring q, thus allowing gravity to draw the cradle-frame down, holding it so as long as key r is held depressed. When key fr is released, the spring q lifts the cradle-frame again for upper-case printing.

It will be seen from the above that the machine canbe set to print continuously either upper or lower case, and also that when set for either case type printing of one or more letters of the other case may be accomplished by depressing a key.

The locking-lever in 'thel present machine holds the lower-case type in line with the printing-point instead of the upper-case type.

The guide-box, composed of the converging guide-plates for directing the type to the printing-point, is pivoted to the cradle-frame at 49 and is held normally up by springs 50, a stop 51 determining this upward position. When it is desired to examine the printing or the last character printed, this box may be moved downwardly at its rear end, and for this purpose an arm 52 is connected to the guide-box, and a lever 53, engaging this arm, is operated from the keyboard by a link 54, connected to one of the key-levers. In the presentinstance I utilize the carriage-unlocking lever 3l for operating the guide-box, said lever and its connections being fully described in my original application, of which this case is a division.

The key for depressing,r the guide-box on the cradle-frame to reveal the printing (the unlocking-key 3l in this instance) is located directly adjacent to the lower-case key, so that by operating both of these keys simultaneously the guide-box can be depressed to.

its maximum extent to reveal the printing. A dividing-comb S3 is employed having pins 83' to divide the series of type-bars into groups of three, four, or more, and by this comb the type-bar action is rendered quiet and easy in operation. This comb prevents a large number of type-bars being moved laterally when any one is operated, as the movement of one type-bar will simply shift laterally those of its own small group. The comb comprises upper and lower plates, Fig. 4, for the upper and lower rows of type-bars. The comb is attached to a suitable part of the cradle-frame.

I claim as my invention- 1. In combination, in a type-writer, the cradle-f ra me,convergi n g type-bars carried therecase printing and a key for changingr temporarily from upper to lower case printing, substantially as described.

3. In combination in a type-writer, a cradleframe, converging type-bars carried thereby, means for holding the cradle-frame u p, means for temporarily shifting the cradle-frame to its lower position, means for throwing the holding means out of action and means for temporarily shifting the cradle-frame from its lower to its upper position, substantially as described.

4. In combination, printing mechanism, a spring for holding a portion of'the same in position to print one set of characters, and a key for relieving the force of said spring to allow the printing to change by gravity from one set to another, substantially as described.

5. In combination, printing mechanism including-a cradle-frame and converging typebars, aspring for holding a portion of the same in position to print one set of characters, a key acting in opposition to the spring to allow the printing mechanism to shift by gravity from one set of characters to another, means acting in opposition to the spring for setting the parts to print said other set of characters, and means for temporarily shifting from said other set of characters to the rst set of characters, substantially as described.

6. In combination, the printing mechanism having a shifting portion, a spring for holding said shifting portion in one position, means for relieving the force of the spring to allow the said portion to shift by gravity, a key for moving the said portion in opposition to the force of gravity and means for temporarily relieving the said portion from the force of the spring, substantially as described.

7. In combination, the cradle frame, a spring for holding the same in its upper position,a lever for relieving the force of the spring from the cradle-frame allowing the same to fall by gravity, a key for temporarily raising the cradle-frame anda second key for temporarily relieving the pressure of the spring, substantially as described.

8. In combination, a cradle-frame, aspring, a loose connection between the spring and cradle-frame, means for withdrawing the pressure of the spring, and means for shiftingthe cradleframe when the spring-pressure is withdrawn, substantially as described.

9. In combination, the cradle-frame, a spring for applying pressure thereto, a loose connection between the spring and cradle- IIO frame, a lever i for permanently withdrawing the pressure of the spring and akey-lever for temporarily withdrawing the pressure of the spring, substantially as described.

10. In combination, the cradle-frame having a depending arm, a spring, a fork connected loosely with the depending arm, a rockshaft Z, connections between said rock-shaft and fork, said spring being joined to said connections, a lever k on the rock-shaft, means for setting lever k, a key-lever for turningthe rock-shaft and a key-leverV 'connected to the depending arm for raising the cradleframe, substantially as described.

1l. In combination, the cradle-frame, a spring, a looseconnection between the spring and the cradle-fra me, means-for withdrawing the pressure of the spring and means for movv ing the cradle-frame in the same direction in which the spring normally tends to move it, the said loose connection allowing the latter action to take place, substantially as described. g 12. In combination with converging typebars, a Verticallymovable guide-box and means extending to the keyboard to depress said guide-box to reveal the printing, substantially as described. Y

13. In combination, the converging typebars, the guide-box, means for changing from one case type to anotherv by shifting the guidebox and connections'extending to the keyboard for giving the guide-box an independent movement to reveal the printing, suby stantially as described.

14. In combination, the converging typebars, the guide-box, a key with connections for lowering the guide-box in changing from one case type to another and a key with connections for giving the guide-box anadditional lowering movement, substantially as described.

l5. In combination, the converging typebars, the guide-box, a key with connections for lowering the guide-box in changing from one case type to another and a key with connections for giving the guide box an additional lowering movement, said keys being adjacent to each other, substantially as described. y

16. In combination with the converging type-bars, a comb for dividing said 'bars into groups, each group comprising several bars which pass through the space between two of the bars of the comb, substantially asdescribed. f

V1-7. In combination the upper and lower rows ofv type-bars andthe upper and lower ,A combs for dividing the type-bars.

In testimony whereof I affix my signature in presence of two witnesses.

y BERNARD GRANVILLE. -Witnessesz CHAs. K. HIGGINS, EBEN E. BROWN.