US1462886A

US1462886A - Typewriting machine

Info

Publication number: US1462886A
Application number: US388401A
Authority: US
Inventors: William H Hulse
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1920-06-12
Filing date: 1920-06-12
Publication date: 1923-07-24
Anticipated expiration: 1940-07-24

Description

- 1,462,886'v W. H. HULSE TYPEWRITING MACHINE 3 Sheets-Sheet 1 Filed June l2, 1920 July 24, 1923- w. H. HULsE TYPEWRITING MACHINE Filed June 12, 1920 3 sheets-sheet 2 July 24, 1923' y ,;462,86

w. H. HuLsE TYPEWRITING MACHINE Filed Jun@v 1`2, 1920 s sheets-sheet 5 Patented July 2li, 1923.,

MNHTE@ STATES@ rarest carica.

WILLIAIVI H. HUIiSE, OF BROOKLYN, NEW YORK, ASSIG-NOR TO UNDERWOOD TYPE- WRITER COMPANY, 0F NEWT YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE'WRITNG MACHINE.

Application filed June 12,1920. Serial No, 388,401.

To all whom t may concern:

Be it known that l, WILLIAM H. l-lULsE, a citizen of the United States, residing in Brooklyn Borough, in the county of Kings, city and State of N ew York, have invented certain new and useful Improvements in Typewriting Machines, 0f which the following is a specification.

This invention relates to silent-key devices of typewriting machines, whereby certain keys may be operated to print a plurality of characters, one above or below the other, without travel of the carriage.

The invention is illustrated as applied to a typewriting machine of the form disclosed in the patent to Petermann, No. 1,189,171, dated June 27, 1916.

According to the present invention, the silent-key or keys may be adapted to partially operate the usual universal bar, which actuates the escapement and the ribbon-vibrating mechanism. The connections maybe i such that the universal bar is temporarily latched in position to hold the ribbon covering the printing point. At the return of thev silent-key, the universal bar may remain locked; its release being automatically effected by the actuation of one of the usual letter-feeding keys.

There is provided upon the universal bar a hook, which is normally ineffective atthe actuation of any letter-feeding key-lever, but which, at the actuation of a silent-key, swings and catches upon a fixed lug or pin, thus holding the universal bar in its actuated position and holding the ribbon up to cover the printing point.

The hook may be controlled by an auxiliary cross-bar lying adjacent the main crossbar of the usual universal bar, the auxiliary cross-bar being adapted to be swung with the usual cross-bar by the usual lug provided on the key-levers.

The silent-key-lever or levers may be provided with a shorter lug, which swings clear of the auxiliary cross-bar, thus permit-ting said cross-bar to swing relatively to the main part of the universal bar, and thereby swing to effective position the hook which locks the universal bar. This locking of the universal bar enables the silent-key, already actuated, or any other silent-key, which may be provided in the machine, t0 be actuated before the carriage letter-feeds, with the result that one or more silent-key characters may be typed at the same letter-space prior to the typing of a character and the feeding of the carriage by a letter-feeding key. Y

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a sectional side view, largely diagrammatic, of a typewriting machine, showing the present invention as applied thereto.

Figure 2 is a similar view, showing a silent-key actuated to lock the universal bar and to print.

Figure 3 is a perspective view of the parts seen in Figure 2, but showingthe parts in normal position, as in Figure l.

Figure 4 is a view similar to Figure 2, but showing a letter-feeding key actuated to release the universal bar and to type a charac ter.

rlype-keys 1, when depressed, swing keylevers 2 around their respective shafts on cross-bars 3, on which they are journaled by swings its type-bar 6 against the platen, be-

cause it is connected thereto by an upstanding link 7 pivoted tothe type-bar 6 and to a lug 8 upstanding from the rear end of the key-lever.

As any type-bar 6 approaches the platen 9, its key-lever 2 lifts a cross-bar 10, forming a solid part of a universal bar which includes sides 11, and is journaled on a fixed bar 12. To enable the key-levers 2 to actuate the universal bar, each key-lever is provided with a lug 13, `which projects horizontally from a downwardly curved portion 14 of the key-lever, with the result that the rising rear end 5 of the key-lever lifts the lug 13, and causes the universal bar frame 10, 11 to draw upon links 15 pivotally attached to the sides 11 and adapted to draw forwardly the lower end 16 of an actuator lever 17 to which the links 15 are pivoted.

The rising of the universal bar is normally effective to feed the carriage one letter-space Whenever the universal'bar rises in the.

manner described and rocks the actuator lever 17, a cross-bar .3 on the upper end of said lever rocks rearwardly a Jfork 24, extending downwardly 'from a rocking bar 25 extending` across the machine and provided with a'lug 26, which is adapted to push rearwardly the dog rocher 21, thus carrying` the loose dog;` 2O clear of the racl 22 and carrying a fixed dog 27 into mesh with said rack.

AThe movement of the 'typewriter carriage at this time is negligible. because the fixed dog is adjusted` to hold the carriage practically at the point where it was held by the loose dog. At the rise of the type-key 1, the universal bar frame 11 is drawn downwardly by a spring 28, thereby rocking the upper end ,of t-he lever 17 forwardly, with the result that the dog rocker 21 is swung?.` ttorwardly by its spring' 29, carrying the loose dog into mesh with the rack 22. This feeds the carriage along one letter-space, because, at the release of the rack 22 from the loose dog 20, a spring swung the loose dog; into position to mesh with the next adjoining tooth of the rack 22.

The actuation of the universal bar not onlythus actuates the ,mechanism including the dog rocker 21,'but also actuates the ribbon carrier 31 to litt the ribbon 32 Jfrom its normal position below the printing point up to cover the printing point, so that the actuated type will print through the ribbon. For this purpose, the vibrating` bar 25 is provided with a cam bracket 33, which is adapt4 edito engage a roll 34 on the lower end of the short arm 35 or' a bell-crank lever having a long arm 36, the end oi which forms the ribbon carrier 31. The form ot the cam is such that pushing` the vibrating bar 25 rearwardly lifts the ribbon carrier 31 to the printing' point against the tension of its spring; 37.' The end .of the arm 35 maybe steadied in a guide bracket 38.

At the releaseof the type-key 1,' the ribbon carrier swings downwardly partly under the tension of its spring' 37 and'partly under the tension of thereturning spring 28; As thus far described, the parts maybe to large extent identical with those usually found in such machines.

Accordingto thelpresent invention. in addition to the letter-feeding type-keys l, there may be also provided silent-keys 39, having key-levers 40, muchlilre the hey-levers 2, and connected by lugs 8 and links 7 to actuate Leones-6 their respective type-bars. Each silent-key 39 may be provided with a lug 41 adapted to engage the universal bar by striking the crossbar 10, thus drawing upon the linli; 15 and swinging` the dog rocker 21 rearwardly precisely as does any lugn 13 when. yits letteri'eeding type-bar is actuated.

The lugs 41 are cut oil short because the universal bar is provided `with a front auxiliary cross-har 42 which usually rises at the rise of the cross-bar 10, because the lugs 13 .underlie both the cross-bar 42 and the crossbar l0. At the rise of the silent-key 39, however, its short lug 41 fails to actuate the aux iliary cross-bar 42, with the resultthat gravity holds it behind, while the cross-bar 10 rises, thus permitting` a hook 43., extending upwardly from the pivot 44 upon the side 11 and upon which the cross-bar 42 is pivotet., to swing over and catch upon a iixed lug)f or pin 45 in -front ot' it, thereby loclingthe universal bar 10, 11 in its actuated-position. The construction is such that when the silent-key 39 rises, its iup; 41 sinlrs down, leavingthe universalbar held by the hoolr. This holds the ribbon carrier 31 in its raised position to which it wasbrou-ght at'the rising; ot the universal bar 10, 11, thus enabling the ribbon to be used for typing` 4another platen 9.

lt will be observed'that no complicated mechanism need be provided to release'the hook 43 from the lue` 45, since the next actuation of a letter-'feedii'ie key "1 lifts the the hoolr 43 clear oi the lug;` 45. and allows the carriage lSto'be drawn along-r by the serine' barrel at the return ot the'ftypekey. ln order that the hoch 43 may have as little lost motion as needed to enableit to be caught upon thelue 4o, it may normallyrest upon the lug 45 by a camf'tace 49, and may be provided with a long projecting-nose 50, which is adapted to easily and surely catch over the lug` 45.

ln order to enable the-spacebar l'to re.- lease the carriage, no special connections need be provided, since it may be mounted upon. the usual arms F 2 pivoted on one of the usual fixed shafts and proedeil with the usual rear tail on anarm orilever 52, said tail in rising` adapted to strike and actuate both the crossebar 1.0 and the auxiliary ci si J with the result that the can riage is fed.

character. Such typinggmay be etlected by *95,

ies

auxiliary cross-bar 42 byA its luc: 13, carries 110 lleo Variations may be resorted to Within the scope ot the invention, and portions ot the improvements may be used Without others.

Having thus described my invention, l claim:

l. ln a typeivi'iting machine, the combination with a traveling carriage, of letterlieeding type-keys, silent keys, an escapement-actuating device universal to said letter-feeding keys and said silent keys, a device tending to lock said escapernent-actuating device in actuated position When moved thereto, and means, universal to said letter-feeding` keys but not to said silent keys, 'for preventing the locking` action of the locking device when the escapementactuating device is actuated by the letteriieeding keys.

2. ln a typei Iriting machine, the combination With a traveling carriage and letter- 'fceding type-keys, ot a universal bar operated by said keys, silent keys also operating said universal bar, a device on the universal bar *for holding' it in its operated position, means on the universal bar adapted to move said device, and lugs on said.. dierent keys for operating4 said universal. bar and for selectively controlling said means.

3. ln a typewriting machine, the combination with a traveling carriage and letterfeeding type-keys, ot a universal bar operated said keys, silent keys also operating said universal bar, a hook on the universal bar, a lug adapted to be caught bv the hook, a secondary bar on the universal bar connected to move the hook, and lugs on said different keys adapted to selectively move the hook.

4. In a typeivriting machine, the combination With a traveling carriage and typekeys, of levers for said keys, a. ribbon-vibrating mechanism, a. universal bar operating said mechanism and comprising a s olid cross-bar, a secondary cross-bar pivoted upon the universal bar, lugs upon said keylevers for actuating said solid cross-bar, eX- tensions ot certain. of said lugs adapted to operate the secondary bar, and a hook connected to the secondary bar adapted to selectively lock or leave tree the universal bar dependent upon the lugon the key-lever operated.

'i 5. ln a typevvritinp; machine, the combination with a traveling;` carriage, of letterfeeding type-keys, silent keys, an element universal to all of said keys. a device tendingr to lock said universal element in operated nosition. and a controller for the locking,r device universal to said letter-feeding type-keys, whereby actuation ot any one of the latter will prevent locking of the universal element in operated position.

6. ln a typeivritingr machine, the combination with a travelingr carri afge and letter-feeding type-keys, of a universal bar operated by operate therewith. keys each comprising a4 lug` adapted to engage said universal rbar to operate the same, and said locking' device to prevent engagement between said hook and said vfirst-mentioned lug, and a key comprising a lug adapted to engage the universal bar butvnot said locking device which will become effective by engagement volf the hook and the first-mentioned lug upon move- .ment ot the universal bar to actuated posi-` tion. l

8. In a typevvriting machine, the combination with a traveling;P carriage. of a ribbon carrier normally holding its ribbon clear of the printing point, letter-feeding keys adapted at their actuation to bring the carrier to the printing point, a spring for returning' the carrier, a silent key also adapted to bring the carrier to the printing' point, a hook normally tending to move to holdingr position and effective at the operation of the silent key to hold the carrier at the printing point. and means -Whereby any of .said letter-feeding kevs When actuated Will. shi-tt said hook to inefiectiveposition.

9. In a typevvriting machine, in combination, an escapement device. a universal bar tor actuatingr the same. a locking device to hold said universal bar in' operated position, said locking 'device comprising a. hook and a lug which may be brought into effective engagement upon movement ot the universal bar to its operated position. keys comprisino lugs to operate said universal bar and said locking: device, and keys comprising luo's adapted to operate said universal bar Without operating said locking device.

10. In a typewriting machine, thecombi nation with a universal bar. oit' a locking device tending to hold the universal bar in actuated position when moved thereto, keys comprising lues adapted to engage said bar and said device to actuate the bar and to prevent the locking et said bar in operated position respectively, a key comprising a lufr adapted to actuate said bar only. and an escapement device and a ribbon carrier both operated by the universalbar.

l1. In a typewritinoj machine. the combination with a. universal bar and a movable part thereon, oi keys comprising lugs adapted to engage said'bar and said part to operate the same, a key comprising a lug adapted to actuan@ the universal bar only, an escapeinent device and a ribbon carrier both operated by the universal bar, a hook connected to said part, and a lug adapted to be caught by said hook or not, according,` as the movable par@ remains at rest or is operated.

12.1ln a typewriting machine, the combination with a universal bar having a solid part, of a part movable on said solid part7 keys having` levers adapted to engage both the solid part and Jche movable part, a key y having a lever .adaptedto engage the movable part only, and a locking device for the universal bar selectively operated accordingl as the movable part isfactuated er not at the engagement of. a key-lever.

13. In a typeivriting machine, the combination with a universal bar having a solid part, o' a part movable on said solidpart, keys having levers adapted to engage both the solid pariJ and the movable part, a key having a lever adapted to engage Jche movable part only, a Xed lug upon the machine, and a locking,r member adapted to engage said lug or not, according asfthe movable part is actuated.

In a typewriting machine, the combination with a universal bar having a Vsolid part, of a part movable on said solid part, keys having levers adapted to engage both the solid part and the movable part, a key having a lever adapted to engage the movable part onlyl a Space-key adapted to actuae both `the solid part and the movable part, and a locking device `for the universal bar selectively operated` according as the movable part is acutated or not at the en# gagement .of a key-lever.

ILLIAM H. HULSE. f Witnesses CATHERINE A, NEWELL, Rosn GERsTEIN.