US1438045A

US1438045A - Typewriting machine

Info

Publication number: US1438045A
Application number: US440320A
Authority: US
Inventors: Alfred G F Kurowski
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1921-01-27
Filing date: 1921-01-27
Publication date: 1922-12-05
Anticipated expiration: 1939-12-05

Description

; 1,438,045. Patented Dec.5,1922- A. 0. F. KUROWSKII TYPEWRITING MACHINE. APPLICATION FILED JAN-27,1921.

4 SHEETS-SHEET l- A/fo 'ey A. G. F. KUROWSKI.

TYPEWRITING MACHINE.

v APPLICATION FILED JAN.27, I921. I 1,438,045. Patented Dec. 5,1922.

4 SHEETS-SHEET 2.

Af/o ey A. G. F. KUROWSKI. TYPLE WRITING MACHINE... APiLlCAfION FILED JAN-27. I921.

Patented Dec. 5, 1922.

4 SHEETSSHEET 3.

Ami??? A. e. F. KUROWSKI.

TYPEWRITING MACHINE.

APPLICATION FILED JAN.27, 1921.

1,438,045; -Patented Dec.5,"19 22'.

4 SHEETS-SHEET 4.

lllll in Brooklyn 'Borough, in

Patented Dec. 5, 1922.

caries sra'ras thesis reset.

rarsar ALFRED G. r'. nniaowsiln, or BROOKLYN, new rear, .assreuoa ro'unnnawoon TYPEVVBITER COMPANY, OF NEW YORK, N.

Y., CORPORATION OFDELA'WARE' ryrnwnrrrive Machine.

- Application filed January 27, 1921. Serial No. 440,320. 1

To all whom it may concern:

Be it known that I, ALFRED G. F. llUnowsin, a citizen of the United States, residing the county of Kings, city and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the fol: lowing is a specification.

This invention relates to signalling mechanisms for chines, and is an improvement on the device line-locking and disclosed in the application of George W.

Campbell, SerialNo. 240%46, filed June 15, 1918. which became Patent No. 1,407,982, dated February 28, 1922. shown as applied to an Underwood portable typewriter.

H is an object of this invention to provide a simple structure for line-locking; and sinnalling, which cannot he accidentally set. To this end, a margin-gage or stop is adjnstably mounted on a rod journaied in the shittdrame of the machine, provided with fixed arms. A, member having a double cam surface is mounted onthe carriage, one of saidcams beingadapted to cooperate with the margin-stop to operate one of said fixed arms to actuate a signalling device,- and the other cam surface being adapted to co-operate with the margin-stop to operate another of said arms to actuate a line-locking mechanism.

A further feature of this invention is'the provision of novel line-locking and signalling mechanisms.

ther features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a sectional side new of a typethe member having the double I Figure 5' is a detail, in sideelevation, of

the signalling mechanism.

typewritingma The invention is said rod being a detail plan view of a margin- Figure 6 is adetaihin rear elevation, partly sectioned, of a marglmstop. p I

Figure 7 1s a plan view of the machine,

showing mainly the line-locking mechanism in effective position. 1 i p l igure 81s a deta l sectional View, showmg the relation of the line-lockinglever in effective position, the universal bar, and a type-key.

Type-keys l0 actuate bellbranks 11 and links 12, to swingtype-bars l3 upwardly for rotation in a carriage 15. Said carriage is mounted to travel ona case-shift frame 20, shiftable by the depressionof shift-keys 22. The carriage is adapted to travel "from right to left in a letter-feeding direction at at one end and a finger-piece 3 at the other end.

and rearwardly againstplaten li, mounted;

the actuation of the type-keys, which operate A. spring.

35 normally presses member downwardly,

but the downward movement is limited by a stop-pin 36 contacting with the upper edge of lever 32. i I

AL rod 40, flattened on its top surtace, and providedawith graduations' corresponding to line-spaces on said flattened surface, is jour-j naled in the end walls l of the shift-frame 20. stops 42, provided adapted to be depressed a spring ment with teeth 50 with finger-pieces d3 ath n ersi e 1; the rod 40, enabling the stops to he slid along the rod to any desired positions. Each margint p i p o d with a pr je tion 4 45. i The rod is so mounted that the projec i 4 engag s h cam-m b 33 at h first cam surface as the carriage travels toward the left. Upon further travel toward the left, the projection 4A engages the second cam surface 52, and"still further travel to the left brings projection la-against a projection 53 on thejcain-member to prevent further travel of the carriage toward ra ow r t e ig t islimi e by e Slidalble along said rod are margin against the action of 6 to release pawls a? from engage the left. When the carriage is retracted, its

'A stop 69 limits stop (see Figure l) and rotates rod 40. Fixed to one end of rod 40 is an arm 60,

Which projects along; tie side of the frame to a bell 61 fixed to said frame. otally mounted on said frame at 62 is a lever 63 having a clapper-portion 64 bent inwardly to lie Within the surface of the bell. A lever 65 is pivoted to lever 68 at 66, and is provided With an overlapping portionfi? normally held against the upper surface of lever 63 by a spri 68. The tip of arm 60 normally lies beneath the tip of lever 65, and projects a short distance thereunder (see ire When projection comesin contact wi h cam surface 51 ano rotates the rod 40, the arm is swung upwardly and carries with it lever 65. It is apparent that lever must move upwardly integrally with lever 65. The movement arm 60 is such as to carry it be ond the tip of lever 65, allowing the st lip;- 68 to snap lever 63 and 65 back to normal, clapper 64 Stfllllllg bell 61 on the return stroke. the return movement of the levers. b

Upon f her travel of the to the l ft, the 'o ection 44 rides upon cam surface 52, rotating rod 40 to greater degree than When said projection Was in contact with cam surface Arm 3.), hein hel l in position above lever 65, performs no addi tional function upon being iurther raised. To the other end of rod 40 is Md 2. second arm 70, which performs no fi nction when raised by the contact of projection 44 h cam surface 51; but when said projection rides upon cam surface 52, tl end of arm '70 contacts with a substantially vertical cam surface 72 (see Figure 7), forming the end of a bent arm 73, fixed to an arm or lever 74 intermediate the length thereof. Said lever 74 is pivotally mounted at 75 on the main f of the machine, and its end is normally lodged by a spring" in a slot- 7 6 in a bar fixed to the machine, said slot being adjacent and just below the bar 23. its end 71 rides up 0 c '72, arm 73, and hence arm is or Wholly in the slot 76 at all times. The

arm 74 may, therefore, be made of light metal Without possibility of bending when the universal bar is pressed (lOWIl in contact therewith. It will be noted that the arms 73 and '4, taken together, form a bell-crank lever.

The lever 74 of the key-lockingmechanism and the arm 60 of the signalling mechanism may be returned to normal, by the spring 80, by retracting the carriage to its initial position at the right, or by depressing lingenpiece to break the contact between projection 44 and the cam member. The rod 40 returns to normal position, carrying With it

arms

60 and 70, a retractile spring; 81, connected to the shift-frame and to the arm 70 igure i), being provided for this purpose. The tip of arm 60 depresses the tip of lever 65, anti swings past the latter, whereupon the spring 68 snaps the lever 65 baclr to normal.

Variations may be resorted to Within the scope of tile invention, portions of the improvements may beused Without ot...ers.

Having thus described my invention, 1 claim:

l. in a typewriting machine, the combine-- tion of a shiftable fra ie a carria mounted to travel in said .me, a urnaled said J L-vv the engagement of said projection r ith one of said cams se ing to rotate said rod. to cause, one of arms to operate the bellring ing device, and the engagement of said projection with the other cam serving to retate the rod to a different degree to cause the other arm to operate the key-locking mechanism.

2. l; a t pevvriting machine, the combination of a shiftable frame, a carriage mounted to travel in said frame and comprising rear bar, rod jonrnaled in said frame, a merging device adjustably mounted on Said rod, arms fixed to rod, one at each end thereof, a bell-ringing device mounted on said frame, a key-locking mechanism mounted on the machine, and a lever pivoted on said bar and extending therealong,

said lever being i daptcd to engage said mar gin-gage device to rotate said rod and cause one of said arms to operate the bell-ringing device and the other of said arms to operate the hey-locking mechanism, successively.

3. In a typewriting machine, the combine? Said rod, a projection on said margin-gage device, arm-s fixed to said rod, one at each end thereof, a bell-ringing device mounted on said frame a key-locking mechanism. mounted on the machine, and a lever pivoted on said rear bar and provided at one end with a double cam surface adapted to engage said projection, the engagement of said projection with the first of said cams serving to rotate said rod to cause one of said arms to operate the 'bell-ringingdevice, and the engagement of said projection with the second cam serving to rotate the rod to a different degree to cause the other arm to operate the key-locking mechanism, j I

4. In a typewriting machine, the combination ofa shiftableframe,a carriage mounted to travel in said frame and comprising a rear bar, a rod journaled insaid frame, a margin-gage device adjustably mounted on said rod, a projection onsaid margin-gage device, arms fixed to said red, one at each end thereof, a bell-ringing device mountedon. said frame. a key-locking mechanism mount ed on the machine, a lever pivoted on said rear bar and provided at one end with a double cam surface adapted to engage said projection and at the other-endiwith a finger-piece, a spring normally pressing said double cam surface downwardly into en gagement with said projection, and a stop.

engaging said lever for limiting the downward movement thereof, the engagement of said projection with the lirst of said cams serving to rotate said rod to cause one of said arms to operate the liiell-ringing device, and the engagement ofsaid projection with the second cam serving to rotate said rod to a different degree to operate the key-locking mechanism, said finger-piece being operable against the action of said spring to rotate said double cam surface out of engagement with said projection to allow said arms to return to normal position.

5. In a typewriting machine, the combination of a shiftable frame, a carriage mounted to travel in said frame, a rod journaled in said frame, a margin-gage device adjustably mounted on said rod, an arm fixed to said rod, a bell-ringing device mounted on said frame, said device comprisin a bell, a clapper pivoted on said frame, ant a trip-lever pivoted on said elapper and capable of independent downward rotation but adapted to rotate upwardly in- .tegrally with said clapper, and means on said carriage adapted to engage said margin gage device to rotate said rod and swing said arm upwardly, said arm being adapted to lie beneath said trip-lever and rotate said triplever and clapper upwardly, said arm being adapted to slip past said trip-lever to allow said tripdever to return to normal position and strike said hell.

6. In a typewritng machine, the combinaper, and a spring fixed to said frame and said trip-lever and normally holding said trip-lever and clapper in lowered position adjacent said bell, and means on said e'afrriage adapted to engage said margin-gage device to rotate said rod and swing said arm upwardly, said arm being adapted to lie beneath said trip-lever and rotate said t-riplever and clapper upwardly against the action of said spring, said arm being adapted to. slip past said trip-lever to allowsaid spring to returnsaid trip-lever and clapper to loweredposition and strike said bell.

'7 In a typewritingmachine, the combination of ashiftable frame, av carriage mountedto travel in said frame, a rod journaled in said frame, amargin-gage device adjustably mounted on said rod, {an arm fined to said rod, a bell-ringing device mounted on said frame, said device con 1 prising a bell, a clapper pivoted on said frame, a trip-lever pivoted on said clapper and capable of independent downward ro tation but adapted to rotate upwardly in'- tegrally with said clapper, and springf fixed to said frame and said trip-lever and normally holding said 'trip lever and clapper in lowered position adjacent said bell, and means on said'carriage adapted to engage said margin-gage device to rotate said rod and swing said arm upwardly, said arm being adapted to lie beneath said trip-lever and rotate said trip-lever and clapperupwardly against the action of said spring, said arm being adapted to slip past said triplever to allow said spring to return said trip-lever and clapper to lowered position and strike said bell. said arm being adapted to return to normal position beneath said trip-lever by rotatin said trip-lever downwardly against the action of said spring and slipping past the trip-lever when the means on said carriage releases said margin-gage device, said spring restoring said trip-lever to normal position. 1 v

8, In a typewriting machine having typekeys and a universal bar actuable by said keys, the combination of a shiftable frame, a carriage mounted to travel in said frame, a rod journaled in said frame, a margin-gage device adjustably mounted on said rod, an

operating arm fixed to said rod, abell-crank operating arm, and means on said carriage adapted to engage said margin-gage device to rotate said rod and operating arm, said operating arm being adapted to engage the adjacent arm of the bell-crank and rotate the latter about its pivot to position the other arm of said bell-crank beneath the universal bar and prevent actuation thereof.

9. In a typewriting machine having typekeys and a universal bar actuable by said keys, the combination of a shiftable frame,

' a carriage mounted to travel in said frame,

a rod journaled in said frame, a margingage device ad ustably mounted on said rod,

t an operating arm fixed to said rod, a bellcrank pivoted on said machine and having one arm thereof adjacent the universal bar and the other arm thereof terminating adj acent said operating arm, means on said carriage adapted to engage said margin-gage device to rotate said rod and operatlng arm,

said operating arm being adapted to engage the adjacent arm of the bell-crank and rotate the latter about its pivot to position the other arm of said bell-crankbeneath the universal bar and prevent actuation thereof, and a spring fixed to said machine and said bell-crank and normally holding the lastnamed arm of said bell-crank in ineffective position to allow actuation of the universal bar.

10. In a typewriting machine having type-keys and a universal bar actuable by said keys, the combination of a shiftable frame, a carriage mounted to travel in said frame, a rod journaled 1n sald frame, a

margin-gage device adjustably mounted on said rod, an operating arm fixed to said rod, a bell-crank pivoted on said machine and having one arm thereof adjacent the universal bar and the other arm thereof terminating in a cam surface adjacent said operatiiig arm, and means on said carriage adapted to engage said margin-gage device to rotate said rod and operating arm, said operating arm being adapted to engage said cam surface and rotate said bell-crank about its pivot to position the respective arm of said bell-crank beneath the universal bar and prevent actuation thereof.

11. In a typewriting machine having type-keys and a universal bar actuable by said keys, the combination of a shiftable frame, a carriage mounted to travel in said frame, a rod journaled in said frame, a margin-gage device adjustably mounted on said rod, an operating arm fixed to said rod, a bell-crank pivoted on said machine and having one arm thereof adjacent the uni ALFRED G. F. KUROWSKI.

Witnesses:

EDITH B. LIBBEY, CATHERINE A. NEWELL.