US1468773A - Typewriting machine - Google Patents

Description

Sept. 25,1923. ,468,773

J. W. BOND TYPEWRITING MACHINE Filed Oct. 25 1919 |NVENT0R= A. BY

ATTNEY.

Patented Sept.l 25, 1923.

atrae stares JOSEPH W. BOND,- or PHILADELPHIA, PENNSYLVANIA, AssIGNon To UNDERWOOD TYPEWRITER COMPANY, or -NEw YORK, N. Y., A CORPORATION or IJELAWARE.V

TYPEWRITING MACHINE.

Application led October 25, 1919. Serial No.` 333,351.

To all whom t may concern:

Beit known that I, JOSEPH W. BOND, a citizen of the United States, residing vin Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and' useful Improvements in Typewriting Machines,of which the followmg is a specification.

This invention relates to typewriting machines. In such machines, including those of Underwood manufacture, it is customary to incorporate a tabulating key at the keyboard, to enable .the carriage to be brought rapidly and correctly to any desired letter-space in its travel, the carriage being arrested by the previously s'et stop.

In many Underwood typewriting machines, this tabulating key is usually placed adjacent the upper right-hand corner of the keyboard. Other forms of the Underwoodstandard typewriting machine, however,-

have other forms of tabulating mechanism,

` and some of .these include a stop-setting key.

This key is adapted to set `any one of a large number of stops.

This stop-'setting key is usually at the upper right-hand corner of the table in the Underwood typewritiug machine, with the result that the typist, accustomed-to use van ordinary tabulating mechanism, will sometimes inadvertently depress. the stop-setting key when typewriting on a machine having such a key, the typist thinking that the stop-setting key is the tabulating key. This confusion of the typist is especially likely to occur in large offices, where both kinds of typewriting machines are used, and the typist usesv one for one kind of work, and another for another kind of work.

According to the present invention, the typist may guard against -this confusion by setting to effective position a guard or stop, which is adapted to interfere with the stopsetting key, and thus warn the typist if it is attempted to tabulate by that key. The

.typist may keep the stop or guard normally effective and only release it during the stopsetting operation.

Other features and advantages will hercinafter appear.

In theaccompanying drawings,

Figure 1 is a skeleton jperspective rear view of a stop-setting key with a o o-operating stop or guard.

Figure 2 is a `fragmentary perspective view of part of an Underwood typewriter keyboard, showing the present invention as ap lied thereto.` y Y n one, form of Underwood standard typewritlng machines, the carriage 1 has fast thereto -a rack-bar 2, extending substantially the length of the carriage, andl carrylng stops 3 which are mounted in openings 4 at letter-space intervals over the major portlon of the length of the carriage. Usually there is a stop 3 in eachl opening 4, and

the. stops normally occupy the upper unset 0r lnefectlve position at which the stops are shown 1n Figure 1. vThese stops are adapt-v ed to co-opera-te with any one of a set of decimal key-operated counter-stops 5', of any Y.

usual or desired form. K

When it is desired to move any one of the stops 3 from its unset to set position, the

'typewriter carriage is shifted to bring the unset stop beneath the stop-*setting arm 6, formed as a turned-over end of a plunger 7, which is adapted to be drawn down by the depression of the stop-setting key 8. The connections between the key 8 and the plunger 7 include a key-lever 9, which is pivotally connected by a link 10.to a rockarm 11, fast upon a rock-shaft 12, saidshaft also having fast thereto a. rock-arm 13, to which the plunger 7 is pivotally connected. Normally, the plunger 7 is held up by the usual returning spring 14 of the key-lever 9. The stop-setting key 8, as seen in F igure 2, in some forms of mechanism, stands adjacent the decimal tabulating keys 15 and the character-printing keys 16, both of said sets of keys forming part of the Underwood keyboard and lying within the ends 17 of the frame.

After all of stops 3 have been set which the -typist desires to set, a guard 18 may be swung from its ineffective position, seen in Figure 1, to the effective position, seen in Figure 2, to interfere with the operation of the key. The guard 18 is herein shown as a stop or arm pivoted at 19 upon a bracket 20, held by'screws 21 tol the'frame of the machine, and comprising a plate 22 adapted to swing beneath the key 8 and to be arrested by the'upturned end 23 of the key. lever. It may include an annular rim 24 adapted to fit around theA periphery of the key-8, and from the rim may project a finger-piece or lug25, to permit Athe arm 18 to be swung to and from effective position. It

- the accidental setting of a column-stop by r of the operation of the key, after the arm 18 has been swung to effective position, will be a warning to the typist whenever it is attempted to ope-rate that key.

Variations may be resorted to within the scope of the invention, and portions, of the improvements may be used without others. Having thus described my invention, I claim:

l. In a typewriting machine, the combination with a traveling carriage, of stops thereon at letter-space intervals, a frame for y the machine, ke s forming part of a keyboard and inclu ing a tabulating key and a stop-settin key, and a device permanently shiftable rom "a normally 'ineffective position to a lposition for preventing any actuation of the stop-setting key by mistake for the tabulating key.

2. In a typewriting machine, the combination with a traveling carriage, of stops thereon at letter-space intervals, a frame for the machine, keys forming part of a keyboard and including a tabulating key and a stop-setting key, a bracket on said frame, and a lug pivoted upon said bracket to be swung under the stop-setting key and substantially into engagement with the lower face thereof to hold the stop-setting key against actuation.

3. In a typewriting machine, the combination with a travelin carriage, of stops thereon at letter-space intervals, a frame for the machine, keys forming part of a keyboard and including a tabulating key and a stop-setting key, a lever'for the stop-setting key, an arm pivoted to swing upon said frame and having an extension to be swung immediately beneath the stop-setting key, when the latter is in its normal position, and be arrested by said lever, and a lug extending above said key and adjacent thereto to enable the typists finger to shift the arm to and from effective position.

4. In a typewriting machine, in combination. a plurality of settable column-stops at letter-space distances, a stop-settingl key, means whereby any one of said column-stops may be set by said key, and meansto prevent Said key while typing, comprising a fixed bracket having a horizontal lug a short distance below the lower face of said stop-setmaarre ting key, an arm pivotally mounted on said lug so as to be swung in a substantially h orizontal plane, said arm being provided at its outer end with a portion constituting substantially half of a cup, the bottom of which passes immediately beneath the lower face of the key, and the raised portion or rim of which partially embraces the key around the periphery thereof, and a ingeriece extending upwardly from the rim o the cup so as to facilitate movement of said arm to and from effective position.

5. In a typewriting machine, the combination with a stop-setting key, of a bracket adjacent said key, an interfering device pivoted on the bracket to be swung beneath the key to prevent actuation thereof and having an upwardly-extending portion to enage said key lto check the movement of said interfering device, and la finger-piece for operating the device.

6. In a typewriting machine, the combination with a tabulating'key, a stop-setting key and a key-lever on which said stopsetting key is secured, of a bracket adjacent said stop-settin key, an interfering device pivoted on the racket to be swung beneath the stop-setting key and against said keg'- lever to be arrestedthereby, and a lug on t e device extending above the stop-setting key and adjacent thereto and forming a fingerpiece' for Vswinging it to and from e'ective j position. i

7. In a typewriting machine, the combinawith a tabulating mechanism including a tabulating key, ra set of settable columnstops and a stop-setting key therefor of a device on said machine, settable at will, for locking the stop-setting key against actuation when typing is to be effected.

8. In a typewriting-maehine having a keyboard anda carriage, the combination of a. mechanism for tabulating said carriage, including a tabulating key at said keyboard, to enable the carriage to be brought rapidly and correctly to any desired letter-space in its travel, said tabulating mechanism also inclusive of a large number of settable stops, a key for settin said stops individually, said stop-settingglxey being also located at said keyboard and .therefore liable to be depressed by mistake for said tabulating key, and a guard constructed to interfere with the use of said stop-setting key, thereby to prevent its mampulation when the tabulating key is intended; said guard retion, a plurality :of settable column-stops atletter-space distances, a stop-setting key, a lever for said key, means whereby any one of said column-stops may be set by said key,

and means to prevent the accidental setting meat/7e o a column-stop by said key while typing, comprising a fixed bracket having a horizontal lug a short distance below the lowei` face of said stop-setting key, an arm pivotally mounted on said lug so as to loe swung in a substantially horizontal plane, said arm being provided at its outer end with a poition constituting substantially half of a cup, the bottom of which passes immediately beneath the lower face of the key ancl is out away to embiace vthe key-level` inef mediately blow said key, and the raised poil tion or' rim of which partially embiaces the key around the peiiphery thereof, and a fingen-piecel extending upwardly from the iim of the cup so as to facilitate movement of the arm to and iom. eeetive position,

Josemi w. Bonn,

Witnesses:

H. E. HEFFUER, M. B. Nmivn.

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