US1683964A

US1683964A - Line-by-line typewriting machine

Info

Publication number: US1683964A
Application number: US744381A
Authority: US
Inventors: Egli Arnold August
Original assignee: CHOCOLAT TOBLER HOLDING CO AG
Current assignee: CHOCOLAT TOBLER HOLDING Co AG
Priority date: 1923-10-25
Filing date: 1924-10-18
Publication date: 1928-09-11
Anticipated expiration: 1945-09-11

Description

. Se t. 11', 1928.

A. A. EGLI LINE BYLINE TYPEWRITING MACHINE Filed Oct-l8, 1924 3 Sheets-Sheet 1' Patented Sept. 11, 1928.

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LINE-IBY-LINE r r ar i MA HINE Application, filed October 18, 1924, Serial No. 744,381, and in Germany October 25, 1923;

r This invention rel-ates to line printing typewriting machines or the like and consists more particularly in this, that only for each printing operation the vibrating roller or the like of the inking apparatusis brought in contact for a uniform, preferably regulable period oftime with the ink roller in the ink trough, the latter roller being preferably turned after each printing operation through an equal portion of its periphery, while the ink distributing device is held in constant motion. According to the present invention the arrangement is. such that the motion of the vibrating roller for causing it to contact with the roller in the ink trough and the rotary motion ofthe latter roller are capable of being initiated and preferably automatically stopped for each printing operatiom The initiation of the motionot' the vibrating roller and of the roller in the ink trough is preferably eflected by a stop member, while the motion is stoppedautomatically after one revolution of a corresponding wheel or .a corresponding disc. For this purpose for instance a rocking lever may be provided, which is held in its operative position by a cam disc or the like, cause to rotate on bei'ng' actuated, although the device. for initiating the motion returns to its position of rest.

Machines of the kind in which the present invention preferably may. be used are shown in the. prior applications Ser. No. 628,514 and Ser. No. 469,045.

In the accompanying drawing aconstructional example of the invention is shown,

Fig. 1 being a diagrammatic side elevation of a device according to the invention,

Fig. 2 a front elevation and Fig. 3 a plan View of Fig.1., In the drawing 1 "s a cord pulley, on the shaft2 of which a toothed wheel 3 is mounted,

whiclrkeeps the toothed wheels 4,. 5 and 6. in constant rotation. The toothedi 5 and 6 are fixed to correspond ng (F -I wheels, 4, I I distributing rollers, between which other dis tributingrol'lers rotate, which distribute theink. 7 is a lever, which rocks abouta pivotal;

point 8. i The lever 7 is adapted to move the me1nber-9 and to cause thereby, the part 34: on the member 9 to engage a corresponding part 35 on the toothed wheel 3, when a bar 10 moving in the direct-ion indicated by the airrow strikes aga nst a member 11 on the lever.

l. The bar 10 is mounted on a rod 25-which is connected to an arm 31 linkediat 30. The arm- 31 carries on its other end the printing roll 33. The; lower end ofthe rod 25' has a crank connection with. a toothed wheel 26' which meshes with a wheel 27-. Whenthe tions and means are moreparticularly described and: shown in the said prior application Serial No. 628,514.

hen the rod 25 is moved down','th'e=bar 10 strikes against the memb'erlland the movable member 9 oi the coupling, which is adapted to move in; the directionindicated by the arrow ais fixed tothe toothed wheel 12, so that, on the part 34 engaging the part 33, thetoothed wheel 12 will turn at the same speed of revolution as thetoothed wheel 3-. The toothed wheel'12 meshes with a toothed wheel 13-, which is mounted on the sameshaft as a toothed wheel 14. The latter meshes with the toothed wheel 15 and the toothed wheel 1-5 with the toothed wheel 16. The toothed wheel: 16 which is mounted on the sameshaf-t as the roller in-the ink trough thus turns the roller when the part 34 onthe member 9 is in engagement with the coupling part 34 on the toothed wheel 3-. On the lever 7 is a pin 1'1 and on the toothed wheel 13 is an annular rib,18-, in, which there is a notch-19 (Figs. 2

., and 3);. 'When the toothed wheel 13- is in its osition of rest the in 1? en a es in the P a P e .e

notch in the annular rib and is raised outof the notch on the toothedwheel- 13 commencing to rotate. By thi'sarrangement the lever 7" is held in its engaged position, althou h the bar 10 has alreadymoved-ba-ck again, 7

until the toothed wheel 13'hasmade a com plete revolution. The pin 17 thereupon returnsinto the notch in the annular rib- 181 under the action of a. spring, 36, and thereby allows the lever andthe 'member 9 of the couplingtoget-her with the toothed wheel 12- to return togthe-position of rest.

Two cam discs 20 and 2-1 are mounted coaxially with the toothed wheel 13-, to which they may be adjustablylfi xed by means of screws 22. A pin 23- on a lever23restso'n I vice consisting in a roller.

both cam discs, which may be, adjusted relatively to one another in a known manner for regulating the operative period of the cams. )nvthe other arm of the lever 23 rest-s the vibrating roller24c, which is adapted to be moved by the

cams

20, 21 into contact with the roller in the ink trough rotated by the toothed wheel 16, each time the latter roller has been turned through a portion of a revolution. By means of this arrangement the top inking roller may be given a perfectly uniform fresh coating of ink after each printing operation with the result that the vibrating roller is not vibrated continuously so as continuously to supply fresh ink to the ink-v ing apparatus. In addition to this the roller inthe inktrough is caused always to supply the same amount 01 ink to the vibrating roller. These points are of particular importance in the case of typewriting machines, which print line for line, so that the separate lines may all receive the same quantity of ink. The bar 10, in the drawings connected to the rod 25, may be of course connected to another means of the printing machine which is synchronously moved with the printing J device i for each said irregularly occurring printing operation for the purpose of supplying for each printing operation an equal quantity of ink from the ink trough to the distributing device.

2. In a printing machine according to claim 1, means for regulating the said period of time.

3. In a printing machine according to claim 1, the said vibrating ink supplying de- 4. Ina printing machine according to claim 1, a roller in the said trough cooperating with the said supplying device, andmeans for rotating the said trough roller for each printing operation an equal part of its peripher q 5. In a printing machine according vto claim 1, a roller in the said trough cooperat ing with the said supplying device, and means vfor rotating the said trough roller for each printing operation an equal part of its periphery, and the said intermittent drive being adapted to put the said vibrating device in motion and the said trough roller in rotation.

6, In a printing machine according to claim 1, the said means for putting the said vibrating ink supplying device in motion comprising means for initiating and auto-- vibrating device.

'7. In a printing machine according to claim '1, a roller in the said trough cooperating with the said supplying device, and means for rotating the said trough roller for each printing operation an equal part of its periphery and the said means for putting the said vibrating device in motion comprising means for initiating and automatically stop:- ping the motions of the said vibrating device and trough roller.

8. In a printing machine according t claim 1, the said intermittent driving means comprising a rotatable member, another member adapted to be moved in connection with the printing device and to initiate the motion of the rotatable member, and means for automatically stopping the motion of the said rotatable member. I

9. In a printing machine according to claim 1, a roller in the said trough,cooperating with the said supplying device, and the said intermittent drive being adapted to put the said vibrating device in motion and to rotate the said trough roller for each printing operation an equal part of its periphery and the said intermittent drive comprising, a rotatable member, first means for initiating the motion of the said member for each printing operation of the printing device, second means for keeping the said member in motion, and third means for automatically stopping the said member.

10. Ina printing machine according to claim 1, a roller in the said trough cooperating with the said supplying device, and means for rotating the said trough roller for each printing operation an equal part of its pe riphery, the said rotating means comprising a rotatable member, first means forinitiating the *motion of the said member for each printing operation of the printing device, secof theprinting device, second means for keeping the said member in motion, and third means for automatically stopping the said member, each time after one revolution.

12. Inga printing machine according to claim 1, a roller in the said trough cooperating with the said supplying device, and means for rotating the said trough roller for each printing operation an equal part of its periphery, the said rotating means comprising a rotatable member, first means for initiating the motion of the said member for each printing operation of the printing device, second means for keeping the said member in motion, and third means for. automatically stopping the said member, each time after one revolution.

13. In a printing machine according to claim 1, a roller in the said trough cooperating with the said supplying device, and means for rotating the said trough roller for, each printing operation an equal part of its periphery, the said intermittent drive being adapted for firstly rotating the said trough roller an equal part of its periphery and for then putting, for a uniform period of time, the said vibrating roller in motion.

14. In a printing machine according to claim 1, the said means for initiating and automatically stopping the motions of the said vibrating device and trough roller comprising a rotatable member, another member adapted to be moved in connection with the printing device, a rockable lever adapted to be rocked by the said other member to couple the said rotatable member with the corn said vibrating device, comprising a rotatable member, a notch on said member, a rockable lever adapted to cooperate with said member and to engage in its unrocked position the said notch, a device adapted to be moved to and fro corresponding to the movement of the printing device and to rock the said lever out of the engagementwith the said notch, further means adapted to return the said lever into its normal position each time the said notch meets with the said lever, and a drive for rotating the said member adapted to be put in motion by the rocking movement of the said lever out of the engagement with the said notch and to be stopped on the return of the said lever into its normal position.

17. In a printing machine according to claim 1 the said means for initiating and automatically stopping the movement of the said vibrating device comprising a rotatable member, a notch on said member, a rockable lever adapted to cooperate with said member and to engage in its unrocked position the said notch, a device adapted to be moved to and fro corresponding to the movement of the printing device and to rock the said lever out of the engagement with the said notch, further means adapted to return the said lever into its normal position each time the said notch meets with the said lever, and cou,

pling means for coupling the said member with the constant drive, the said coupling means being adapted to be moved into its coupling sosit-ion by the rocking movement of the said lever out of the engagement with the notch and to be returned to its normal position on the return of the said lever into its unrocked position.

In testimony whereof I have aflixed my signature,

ARNOLD AUGUST EGL'I.