US1679744A - Typewriting machine - Google Patents

Description

Aug. 7, 1928.

E. G. ROWLEY TYPEWRITING MACHINE Originai Filed April 50, 1925 Patented Aug. 7, 1928.

U I ED; Y STATES 1,619,144 PArE -r OFFICE.

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Application ma s in so, 1m, Serial in. cases; Renewed January as, 1927.

This invention relates to a sounddeadening casing for. a ortable typewritmg machine,- in which 1; e machine is completely enclosed within the casing except for the keyboard, which protrudes through the wall.

In my a plicatlo'n No. 17 ,554, filed March here is shown a casing for the purpose of deadening the noise of typewriter operation. In said invention the carriage of the machine is controlled from the outside of the casin by means of a handlever at the keyboar the lever being operatively connected to the 'line space devices of the carriage.

In this invention there is provided improved mechanism for controlling the movements of the carriage from the outside of the casing. The carriage-release mechanism comprises a bail-piece mounted in the cas ng and operatively connected to a depressible exterior button mounted on the front wall of the casing. Said bail-piece extends sub-' stantiallythe full width of the casing and engages the carriage-release lever when operated by the button. The latter may be held back by the left hand while the right hand manipulates the exterior carriage-driving handle to run the carriage to and fro without opening the casing.

Another feature of this invention relates to margin-gage devices or=tabulating devices for locatin the carriage. Upon a bail is an adjustab e stop-device, co-operative with a fixed stop on the carriage, in such a manner that when the automatic stop-button is depressed the bail-piece carrying the stopdevice is swung in front of.the stop 'on the carriage simultaneouslywith the releafe of the carriage. The two buttons are operatively connected, so that they will simultaneously operate when the automatic stopbutton is depressed,thus -permitting the car riage to move to position.

Another feature of this invention relates .to'means for facilitating the insertion of the machine in the casing and the removal therefrom. To this end, thefront 'wall of the casing is provided with a slot the full width of the keyboard extension, to permitthe placing of the machine in. the casing vertically. The 0 ning atthe top of the slot between the yboard and the top of the front wall is closed by means of a felt-lined front'plate. Thefront plate is supported with stu casing. The detachable front plate also serves to fasten the machine down upon its sound-deadening bed of thick felt.

Other features and advantages will hereinafter appear.

In the accompanying drawin Figure 1- is a planview 0 the sounddeadening casing with the cover removed, and showing an Underwood portable typewriting machine operatively placed therein.

Figure 2 is a cross-sectional view, in elevation, through the line 22 of Figure 1.

Figure-3 is a detail, showing the carriagestopping mechanism in its normal position, and the carriage-releasing mechanism in its operated position.

Figure 4 is a detail, showing the carriage stopping'mechanism in its operated Figure 5 is a front view of the opening through yhich the keyboard protrudes, and shows th front plate closing the opening at the top thereof. This invention is illustrated in connection with an Underwood portable typewriting machine, and is for the purpose of deadening the noise arising from the operation thereof.

In small portable machines of this kind it is sometimes desirable to remove the machine from the casing and then pack it into the portable casing, which forms a part of the equipment usually supplied with the machine. For this reason, it is' advantageous to insert the'machine in the casing and .remove it therefrom with .little or no alteration thereof, and also to simplify the operation of installing the machine for use in the casing. The casing comprises a bodypart '10 and a cover 11 rockably mounted on the body-part b mansof hinges 12. The front wall of t e casi'n isprovided with a slot or opening 13' substantially the full width-of the keyboard extension 14. I In this manner, the machine is placed upon a base board 15 horizontall and'then the. opening at the top of the key and is closed by means of a frontplate16 which also holds the machineinxglace. Said front plate-is provided 17 fast thereto, and the studs are provided with. a turned-down body 18 .en-- gaging with slots 19 in the front wall 20;

position.

In order to prevent the emission of sound through the front plate 16, the same is provided with a layer 21 of sound-deadening material, glued or otherwise secured thereto. The lower edge 22 of the plate 16 is designed to fit the outline of the upper edge of the front plate of the machine.

In the Underwood machine, there is provided a carriage 23 mounted upon rails, and the carriage is arranged for letter-space travel at each'key depression. In order that the carriage may be returned after each line of typing, there is provided mechanism which may comprise a hand-operable lever 24 fulcrumed on the front wall of the casing. The lever 24 is operatively connected to a shaft 25 by means of a gear 26 engaging with a pinion 27 fast to saidshaft, which carries fast thereto a drum 28 around which a cord 29 is wound. Upon depressing the lever 24 the drum 28 will be caused to rotate, thus winding the cord therearound and pulling on the carriage toward the drum. The cord'29 is shown connected to the carriage at 30, but obviously the same could be connected to the line-space lever 31, as illustrated in my above-mentioned application No. 17,554, in which other mechanism is shown for the purpose of improving the operation of the carriage-return mechanism hereinbefore described.

In order to further eliminate the necessity of opening the cover to control the movement of the carriage, there is provided mechanism whereby the carriage may be released from the escapement mechanism and then positioned by means of the lever 24.

In the Underwood machine there is provided an escapement gear 32 r otatably mounted on the frame thereof. There is also provided a pinion 33 fast to the gear, and the pinion operatively meshes with a rack 34 which is releasable from the pinion by'means of a lever 35. The lever 35 is rockably mounted upon the platen-shaft 36 and engages the rack-supporting arms 37 at 38, the supporting arms being fulcrumed at 39 upon the platen-frame. In this invention there is provided mechanism for releasing the lever 35 from the outside. of the casing. Said mechanism may comprise a bail piece 40 rockably mounted on a shaft 41 fast to the end walls 42 of the casing, in a manner to depress the lever 35 when a button or fingerplece 43 collapsibly mounted on the front wall is operated. Said button 43 is operatively connected to the bail-piece 40 by means of linkage which may include an arm 44 fast to the bail-piece and a rod 45 fast to the button and connected to the arm 44 at '46..

Another feature of this invention relates to automatic means for positioning the car- I riage relatively ,to the printing point, by

simply depressing a button or finger-piece 47 mounted on the front wall of the casing.

To this end, there is provided a bail-piece 48, rockably mounted on the shaft41. The bail-piece 48 is preferably of rectangular cross-section having a series of slots 49 cut therein to form a rack for receiving a stopclip-5O resiliently held thereom Upon depressing the button 47 which is fast to a rearwardly-extending rod 51, the ball-piece 48 is swung on its supporting shaft 41 from a position shown in Figure 3 to that shown in Figure 4, in which the bail-piece v48 13 shown swung downwardly by the action of an arm 52 which forms an integral part thereof, and is operated by the'rod 51 connected thereto at 53. By swinging the bail 48 to the position shown in Figure 4, the,

stop-clip is brought in the path ofa st0pbutton 47, both bails will be'rendered etfective, but when the button, 43 is operated, then only the bail 40 will be swung to release the carriage.

It will be understood that in order to further increase the efficiency of the sounddeadening casing, the front, rear and side walls thereof and the cover may be covered with layers of sound-deadening material, and that the machine may, by the same or any other method, be insulated from the baseboard and secured thereto by meansof a supporting member, the same or similar to that disclosed in my said a plication.

The carriage may be quickly positioned from the outside of the casing by simply depressing the carriage-release button wlth one hand while the carriage-return handle is operated with the other hand against the pull of the carriage-feeding"spring which draws the carriage in the opposite direction.

Variations may be resorted to within the scope of the invention, and portions of the 2. In a sound-deadening casing for a typewriting machine, said casing completely enclosing the machine except for the keyboard extending through an opening in front thereof, means for returning-the carriage including an arm pivotally-mounted on the side of said casing, and means controlled by fa depressible button for releasing the .car-.

' lever of the machine.

3. In a sound-deadening casing for a typewriting machine, said casing completely enclosing the machine except for the keyboard extending through an opening in front thereof, means for returning the carriage including an arm pivotally mounted on the .side of said cas ng, meanscontrolled by a depressible button for releasing the'carriage, andv means controlled by a second depressible button effective to automatically release the carriage and to stop it in a predetermined position relative to the printing point.-

4. In a sound-deadening casing for a typewriting machine, the combination of a body.- part and a cover, the body-part having an open slot substantially the full width of the keyboard-extension of the machine to facilitate the insertion of the machine in the casing, and detachable means co-operative with sald body-part for locking the machine in place in the casing and for preventing the passage of sound-waves through the portion of the slot not closed by the keyboardextension of the means including a; front plate fitting down upon the top edge of the front plate ofthe typewriter.

writing machine, the combination of a bodypart and a cover, the. body-part having an open slot substantially the full width of the keyboard-extension of the machine, and a frontclosure for locking the machine in place and for preventing esca of soundwaves, sald closure having hea ed studs fast thereto and slots in the front wall ofthe casing for receiving the body of the headed studs, said closure occupying the full width of said slot above said'keyboard and at itsv lower edge shaped to fit closely to theitop edge of the front said keyboard. a

- 6. In a sound-deadening casing for a typewriting machine comprising a body part and a cover therefor,

' opening at the front for the'keyboard-extension to render the machine operable from the outside of the casing, means for concomitantly line-spacing the platen and returning the carriageof the machine, means for .releasing the carriage by the depression of an exterior button, and. a tabulatlng device including means for releasing and positioning machine, said detachable 5. In a sound-deadening casing for a typeplate ofthe machine above the body-part having an the carriage by the depression of a second exterior button, both buttons mounted on the front of said casing.

7. In a sound-deadening casing for a typewriting machine comprising a body-part and a cover therefor, the machine beingop' erable from the outside of the casing-and tabulating means for releasing and then positioningthe carriage by the depression of an exterior button mounted on the front .oi

rockably mounted on .the casing, means op eratively connecting the button tothe bailpiece, an adjustabl'y mounted stop-device fast to the bail-piece and a fixed stop on the carriage and co-operating with the stop-de' the casing, said means including a bail-piece and including means for releasing and positioning the carnage by the depression of a button, said tabulating means including a bail-piece rockably mounted on the casing, means operatively connecting the button to the bail-piece, an adjustablymounted stopdevice fast to the bail-piece and a fixed stop on the carriage and co-operati'ng with the stop-device to arrest the travel of the carriage. when the carriage is released, an exterior release-key mounted on,the casing, and means for o'peratively connecting the ex-l terior release-key to said carriage-releasing means. i Y I 9. In a sound-deadening casing for a type writing machine comprising a body-part and a cover therefor, means for concomitantly line-spacing the platen and returning the carriageof the machine, means for releasing the carriage by the depression of a button mounted on the casing, and meansfor both m releasing and positioning the carriage lay the depression of a tabulating button, sai last two mentioned means including a double.

bail arrangement effective respectively to re- -10. A sound-deadening casing having av body-partf and alcover therefor, in. combination with a ty-Pewriting h e having a 2 carriage arranged for letter-feed travel and means including a lever for releasing said lease and to arrest the travel of the carriage. I

body-part and a cover. therefor, in combina body-part and a cover therefor, in combination with a typewritingmachine having a carriage arranged for letter-feed travel and means including a lever for releasing said carriage, means'operatively connected to a collapsible button in front of the casing for releasing said lever, and means controlled by another button in frontof the casing for arresting the travel of the carriage When'the releasing lever is operated, said last two mentioned means including a double bail arrangement, one of the bails being effective to release the carriage by bearing upon the carriage-release lever, and the other bail be ing effective to present a-stop-device to the carriage to arrest its travel.

13. The combination of a sound-deadening casing, a typewrltmg machine therein, in

4 cluding a carriage inaccessible for operation, means within the casing for returning the typewriter-carriage, a lever exterior of said casing at one side of the machine for manipulation by one hand, carriage-releasing means mounted within said casing, and a button connected to said carriage-releasing means and mounted at the exterior of the casing for manipulation by the other hand of the operator, whereby by employing both hands the operator may adjust the carriage back and forth without first opening the casing.

14. In a combined typewriting machine and sound-deadening casing, said casing completely enclosing the machine except for the keyboard extending through an opening in the front of said casing, a stop traveling with the carriage of the machine, carriagereleasing mechanism, a bail extending along the interior of the casing and mounted thereon adjacent the traveling stop, said bail including a rack-portion, a clip-stop carried selectively by the rack-portion, means operable from the outside of said casing for moving said bail to present the clip-stop in the path of the traveling stop, and means for automatically releasing the carriage as the bail moves the clip-stop to efiective position.

15. In a combined typewritingmachine and sound-deadening casing, said machine including a carriage having a release key thereon, said casing completely enclosing the machine except for the keyboard extending through an opening in the front of said casing, a stop traveling with said carriage,

a displaceable rod extending along the in-,

terior of said casing and mounted thereon adjacent the carriage-stop, said rod having transverse teeth, a clip-stop engageable with i any of said teeth and carried by said rod into the path of the traveling stop, a second displaceable rod extending along the interior of said casing and mounted thereon in operating relation with said carriage-release key, and means operable from the outside of said casing for causing the stop-carrying rod to move into said path, and also for causing the second rod to operate said key to release the carriage.

16. In a combined typewriting machine and sound-deadening caslng, said casing completely enclosing the machine except for the keyboard extending through an opening in the front of said casing and being removable from the machine, tabulating devices carried by said machine, co-operative tabulating devices carried by the casing, all of said tabulating devices being brought into co-operable relation when the machine is positioned within the casing, and means outside of said casing for controlling said decompletely enclosin the machine except for the keyboard exten ing through an opening in the front of said casing, carriage-releasing mechanism, a stop traveling with said carriage, a displaceable rod adjacent said carriage-stop, van adjustable stop carried by said rod and movable by the latter into the path of the traveling stop, a second rod extending along the casing and operable to release the carriage, and means outside. of said casing for operating the stop-carrying rod, the latter including means for operating the carriage-releasing rod.

19. In a combined typewriting machine and sound-deadening casin said casing completely enclosing the mac ine except for the keyboard extending through'an opening in the front of said casing, a stop carried by the carriage of the machine, carriage-releasing mechanism, means operable from the outside of said casing for controlling the releasing mechanism, devices carried by said I the path of the carriage-stop to control the carriage-travel when said releasin means is operated, and means operable om the outslde of said casing for controlling said interposable stop.

20. In a combined typewriting machine and sound-deadening casin said casing com letely enclosing the machine except for the eyboard extending through an opening in the front of said casing, carriage-releasingmechanism, and means for releasing the carriage with one hand and operating the released carriage with the other hand, includ ing means for controlling said release mechanism, and also including means for moving the carriage to and fro in its released condition, said controlling and carriage-movin means including actuating devices indepen ent'ly mounted on the outside of the casing, one at each side of the keyboard-extension. 21. In a combined typewriting machine completely enclosing the mac ine except for the keyboard extending through an opening in the front of said casing, carria -releas ing mechanism, means operable rom the outside of the casing for controlling said mechanism; and means also operable from the exterior of the casing but independently of said controlling means for movingv the released'carriage to and fro.

EDWARD fir. ROWLEY.

and sound-deadening casin said casing

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