US1137014A - Typographical machine. - Google Patents

Description

G. MUEHLEISEN.

TYPOGRAPHICAL MACHINE. APPLICATION FILED MAY 23, 1914.

Patented Apr. 27, 1915.

51 M 4 (1 HoumaaS THE NORRIS PETERS cn PHOTO-LITHQ. WASH/NC ran. 0.

CARL MUEHLEISEN, OF BER-LIN,

GERMANY, ASSIGNOR TO lVIERGENTI-IALER LINOTYPE COMPANY, A CORPORATION OF NEW YORK.

TYPOGRAPHICAL MACHINE.

Specification of Letters Patent.

Patented Apr. 27, 1915.

Application filed May 23, 1914. Serial No. 840,445.

To all whom it may concern.

Be it known that I, CARL MUEI-ILEISEN, a citizen of the United States, residing at Chauseestrasse 23, Berlin, N. 4, in the German Empire, have invented new and useful Improvements in Typographical Machines, of which the following is a specification.

My invention relates to typographical machines, such as linotype machines of the general organization represented in U. S. Letters Patent to O. Mergenthaler, No. 436,532, wherein circulating matrices are stored in a channeled magazine, released therefrom in the order in which their characters are to appear in print and then assembled in line, the composed line transferred to the face of a mold, the mold filled with molten metal to form a slug or linotype against the matrices which produce type characters thereon, and the matrices thereafter returned through a distributing mechanism to the magazine from which they started. The release of the matrices from the magazine is efiected by a series of escapements, one for each of its channels, the escapements being controlled from a keyboard mechanism, and each comprising a pivoted lever and two pawls which are moved thereby alternately into and out of the magazine. Ordinarily, these pawls are made of rectangular form, or square in cross section, and the magazine and the escapement-supporting bar are consequently provided with similarly formed slots or openings to receive them. The manufacture of the parts with such square slots is complicated and expensive, and particularly as they must be arranged in different angular positions to correspond to the convergence of the magazine channels. Furthermore, in actual practice, it frequently happens that in mounting the escapements the pawls will not enter the slots properly, or work freely and smoothly therein, and also that their faces will not be presented squarely against the ends of the downcom- -ing matrices.

This has necessitated the filing and fitting of the parts by hand, resulting in much inconvenience and loss of time.

To overcome the above objections, I propose to make the pawls of cylindrical form, or circular in cross section; and I find from actual experience that this gives a much cheaper construction of the parts, easier assemblage, and better action. The magazine plate, instead of being a complicated one with differently situated rectangular slots, may now be a simple one having a series of round holes bored through it, which holes may be exactly located, and made speedily and at little cost. The construction of the escapement supporting bar is equally simple'and inexpensive, involving merely the milling out of the grooves to receive the escapement levers, and the boring of a series of holes for the pawls. The parts may be assembled easily and quickly, and are practically certain to require no fitting or alteration. The pawls, being round, always present the proper surface to the downcoming matrices without regard to the angle at which they approach.

In the accompanying drawing: Figure 1 is a vertical section taken through the magazines, etc., of a linotype machine, having my invention applied thereto; Fig. 2 is a plan view of a magazine with its top plate removed to show the convergence of the channels therein; Fig. 3 is a detail of the escapement supporting bar; and Fig. 4 is a perspective of one of the escapements detached.

Referring to the drawing, I have shown my invention as applied to a machine employing two magazines A and B containing matrices X, and which are movably arranged so that one or the other may be brought into operative relation to the assembling devices C. The magazine consists as usual of parallel top and bottom plates formed on their inner faces with longitudinal grooves D to guide the edges of the mat rices, these grooves converging toward the forward end of the magazine (see Fig. 2). The magazines are provided with escapements, each comprising a rocking lever E and two pawls F and G located at opposite ends of the lever and which are projected alternately into the magazine through openings H therein to control the release of the matrices. The pawls F and G are formed at their lower ends with flat disk-shaped bearing surfaces or portions seated in corresponding recesses in the lever E. The escapements are mounted in series in a supporting bar I, which is formed with a series of grooves J to receive the lovers E, and with a series of openings K to receive usualv way.

the pawls F and G, all the levers E being pivoted upon a wire or rod L which ex- I tends throughout the length of the bar.

The parts so far described are of the customary construction except in the respects later to be pointed out. v

The escapements may be operated in any suitable manner. The mechanism shown in the drawing comprises a series of pivoted levers M, having their rear arms arranged to engage the forward arms of the escapement. levers E, and their forward arms in position to be acted upon by a corresponding series of: reciprocating rods N, which are operated from the keyboard mechanism in the Springs 0 act upon the rear arms. of the levers E and serve to hold them in, and return them to their normalposition of rest,as shown in Fig. -1.'

Passing now to my improvement, it is to be. noted that. the escapement pawls F and Gr are of cylindrical form, or circular in crossssection, and. that the openings H in the magazines andthe openings J in the supporting bar I are. circular, or in the form of round holes to receive the pawls. As before stated, this construction of the parts dispenses with the necessity for accurate fitting and insures the smooth and easy action of the eseapementswhich is required in their operation. It. should be further noted that the holes H in the magazine are of less diameter thanthe width of the grooves D therein, the purpose being to avoid engage ment of the matrices with these openings during their passage through the magazine.

WhileI have shown my invention as appliedto the particular kind of machine described, it will be obvious that it may be adapted to other kinds of machines, such as typesetters, typecasters, and the like, which employtype or dies instead of matrices, and further; that the form and arrangement .of the parts'may be varied to suit the new conditions met in such. machines. Generally speaking, I desire it to be understood that I do not limit myself to any particular form or embodiment, except in so far as specified in the claims.

Having thusdescribed my invention, its construction and mode of operation, what. I claim and desire to secure by Letters Patent of the United States, is as follows:

1.. An escapement for typographical machines comprising a cylindricalfstem or pawl tov engage the type or matrices.

, 2. An escapement for typographical machines. comprising an operating lever and a Copies: this. patent may be obtained for cylindrical stem or pawl to engage. the type or matrices, said pawl being formed with a flat disk-shaped bearing surface seated in said lever.

3. An escapement for typographical machines consisting of an operating lever and two cylindrical pawls pivotally connected thereto to engage the type or matrices alternately.

4. In a typographical machine, the combination of a magazine formed with grooves wherein the type or matrices travel on their edges, and cylindrical escapement pawls actingthrough the bottoms of said grooves to control the release of type or matrices from the magazine.

5.. A magazine for linotype machines formed with a groove wherein the matrices travel on their edges, and further with a circular opening extending through the bottom of said groove to receive a cylindrical. escapement pawl.

6. A magazine for linotype machines formed with a groove wherein the matrices travel on their edges, and further with a circular opening extending through the bottom of said groove and less. in diameter than. the width of said groove, for the purpose described.

'7. In a typographical machine, the combination of a magazine formed with a series of grooves wherein the type or matrices travel 011 their edges, and further with a series of circular openings extending through the bot-toms of said grooves, with a series of escapements. comprising cylindrical pawls acting through the openings in the magazine to control, the release of the type or matrices therefrom. v

. 8. An escapement-supporting bar provided with circular openings to receive cylindrical escapement pawls;

9. In a typographical machine, the combination of a series of: escapements, each comprising a pivoted lever'and two cylindrical pawls seated therein and arranged at opposite sides, of its pivot,.and a supporting bar therefor formed. with a series of grooves wherein the levers are mounted, and with a series of circular openings leading into said grooves to receive the cylindrical pawls.

In testimony whereof, I have afiixed my signature in presence of two witnesses.

CARL MUEHLEISEN. WVitnesses:

HENRY HAsrnR, IVOLDEMAR HAUPT.

five cents each,,by;. addressing the, Commissioner of, Patents,.

Washington, It 03- I v

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