US842796A - Device for locking the key-levers in type-writing machines. - Google Patents

Device for locking the key-levers in type-writing machines. Download PDF

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Publication number
US842796A
US842796A US22246404A US1904222464A US842796A US 842796 A US842796 A US 842796A US 22246404 A US22246404 A US 22246404A US 1904222464 A US1904222464 A US 1904222464A US 842796 A US842796 A US 842796A
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Prior art keywords
locking
levers
key
type
writing machines
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Expired - Lifetime
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US22246404A
Inventor
Carl Julius Mohns
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wanderer Fahrradwerke Vorm Winklhofer & Jaenicke AG
Wanderer Fahrradwerke Vorm Winklhofer & Jaenicke A G
Original Assignee
Wanderer Fahrradwerke Vorm Winklhofer & Jaenicke A G
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Application filed by Wanderer Fahrradwerke Vorm Winklhofer & Jaenicke A G filed Critical Wanderer Fahrradwerke Vorm Winklhofer & Jaenicke A G
Priority to US22246404A priority Critical patent/US842796A/en
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Publication of US842796A publication Critical patent/US842796A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/54—Locking devices applied to printing mechanisms
    • B41J29/58—Locking devices applied to printing mechanisms and automatically actuated
    • B41J29/64—Locking devices applied to printing mechanisms and automatically actuated by a function of the printer to lock the keyboard
    • B41J29/66—Locking devices actuated when platen reaches the end of a line

Definitions

  • any of the keys may be used, if necessary-t'or example, to iinish oil a word-the operator presses on thenuts n and 0, (n being screwed out against 0,) and thereby forces the lever IB'LO the right,
  • This invention relates to a device for lock- 1 ingthe key-levers in type-writers andtheobl ject is to enable the key-levers, in addition to Fig. 1. their ordinai'y locking by the papcr-carare also carried to the right and the key-leriage at the end of the line, to' be locked at l vers thereby released, and, further, the link e any other position of the carriage, sons to and parts attached thereto are uniniluen ced by this movement, since the slot in the link 6 allows the pin on the arm of the lever h to move freely. ()n pressing the nuts 0 and n the spring I. is put in tension, and when the person to use the machine unless the locking; device is released.
  • the papencarriage a carries a fixed stop I), i which shortly before the end oi the line is reached strikes the stop (1.
  • This stop is ad justable on the rotatable rod 0, soas to the length of-the line, and is provided with a 1 suitable cam-surface, so as to rotate the rod c l on contact with the stop I).
  • the rod c is provided with a crank c, which on'the rotation ol 0 actuates a link e, which operates the signal-bell y in the usual manner.
  • a spring f is put in tension onthe vers'l.
  • a locking device for type-writers consisting of a bell-crank lever, a locking-bar carried by one arm thereof, a rocking bar, a link connecting said rocking bar with theother arm of the bell-crank lever, means for rock- .ing the bar by the carriage, a lever having fore tends to return it with the rod 0 to their original posit-ions.
  • the lower end of the link e is formed with a slot which engages a pin 6 on an arm of one of the side levers h. 'ihese' levers 7tcarry the; locking-bar i, and, on an extension of the arm; on the lever 'h is connected a spring k, adapted, on the downward movement of the rod 0, to draw down the said arm and throw the locking-bar i over to the left, F ig. 1.
  • the I locking-bar thereupon engages projections on the keydevers I, so that depression of any of the keys is impossible.

Description

No. 842,796. I PATENTED JAN. 29, 1907.
l '0. J. MOHNS. 1 DB'VIGE'FOR' LOGKiNG THE KEY LE'VERS IN TYPE WRITING MACHINES.
APPLICATION FILED AUG. 27, 1904.
2 SHEETS-SHEET 1.
PATENTED JAN. 29, 1907.
DEVICE FOR ,LOOKING THE KEY LBVBRs IN TYPE WRITING MACHINES.
APPLICATION FILED AUG. 27, 19041 2 SHEETS-SHEET 2.
of Chemnitz, Germany, have invented a cerj render it impossible'l'or any unauthorized 1 downward movement of the link e, and therethe frame of the machine at 32 and having tnairnn srgrrns atom @FFIQE.
CARL JULIUS MOHN S, O F CHEMNITZ, GERMANY, ASSIGNOR'TO THE FIRM OF l AN-DEREK FAHRRADWERKE, VORM. TINKLHOFER & JAENlCKEQ L OF SUHONAU, SAXONY, GERMANY.
DEVICE FOR LOOKING THE KEYELEVERS an TYPE-warrant; Minot-tines.)
Specification of Letters Patent.
Application filed August 27,1904. .n No. 222.464.
'10 11/! m/tmo [1' ma 1-0/1 067%. t W'he'n typing, the nut n is screwed back Be it known that l, CARL JULIUs Monxs, against'thelock-nut0,and thusleavesthelever free. to move to the right, Fig. 1. I
in order that at the end of a line any of the keys may be used, if necessary-t'or example, to iinish oil a word-the operator presses on thenuts n and 0, (n being screwed out against 0,) and thereby forces the lever IB'LO the right,
tain new and useful Device for Locking the I Key-Levers in Typcv'riting Machines, of which-the following is a specification.
This invention relates to a device for lock- 1 ingthe key-levers in type-writers andtheobl ject is to enable the key-levers, in addition to Fig. 1. their ordinai'y locking by the papcr-carare also carried to the right and the key-leriage at the end of the line, to' be locked at l vers thereby released, and, further, the link e any other position of the carriage, sons to and parts attached thereto are uniniluen ced by this movement, since the slot in the link 6 allows the pin on the arm of the lever h to move freely. ()n pressing the nuts 0 and n the spring I. is put in tension, and when the person to use the machine unless the locking; device is released.
The accompanying drawings illustrate one 3 convenient manner of carrying the invention I into eil'ect, Figure 1 being a longitudinal section of a machine with the device applied, and Fig. 2 a front elevation thereof.
The papencarriage a carries a fixed stop I), i which shortly before the end oi the line is reached strikes the stop (1. This stop is ad justable on the rotatable rod 0, soas to the length of-the line, and is provided with a 1 suitable cam-surface, so as to rotate the rod c l on contact with the stop I).
The rod c is provided with a crank c, which on'the rotation ol 0 actuates a link e, which operates the signal-bell y in the usual manner. A spring f is put in tension onthe vers'l. When the machine is not in use, the nut 12 is screwed up against the front plate 91 ol' the machine and the lever 93 thereby nut. ais'screwed out against the lock-nut 0 and the key-levers Z thereby released ready for use.
certained the nature of my said invention and in what manner the same is to be per formed, l declare that what I claim is A locking device for type-writers consisting of a bell-crank lever, a locking-bar carried by one arm thereof, a rocking bar, a link connecting said rocking bar with theother arm of the bell-crank lever, means for rock- .ing the bar by the carriage, a lever having fore tends to return it with the rod 0 to their original posit-ions.
The lower end of the link e is formed with a slot which engages a pin 6 on an arm of one of the side levers h. 'ihese' levers 7tcarry the; locking-bar i, and, on an extension of the arm; on the lever 'h is connected a spring k, adapted, on the downward movement of the rod 0, to draw down the said arm and throw the locking-bar i over to the left, F ig. 1. The I locking-bar thereupon engages projections on the keydevers I, so that depression of any of the keys is impossible.
Connected to the end otthe lever h and swinging therewith is a lever :c, pivoted on hand in presence of two witnesses.
' CARL J IUS MOHNS. Witnesses: i
I FREDERICK J.-D1E'rznAN, ERNST G. MEYER.
connected to it athreaded pin m, fitted with a nut'n and lock-nut 0. I c
The levers h and the locking-bar i I operator releases the said nuts returns the loclung-bar '0 under the projections onthe le- Having now particularly described and as.-
Patented Jan. 29,1907.
moved to the left, Fig. 1, and the keys locked, ()n commencing to use the machine the one endconnected to the frame and its other T11 Witness whereof I have hereunto set my
US22246404A 1904-08-27 1904-08-27 Device for locking the key-levers in type-writing machines. Expired - Lifetime US842796A (en)

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US22246404A US842796A (en) 1904-08-27 1904-08-27 Device for locking the key-levers in type-writing machines.

Applications Claiming Priority (1)

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US22246404A US842796A (en) 1904-08-27 1904-08-27 Device for locking the key-levers in type-writing machines.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441375A (en) * 1944-11-15 1948-05-11 Ibm Key locking device for power operated typewriting machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441375A (en) * 1944-11-15 1948-05-11 Ibm Key locking device for power operated typewriting machines

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