US643289A - Linotype-machine. - Google Patents

Description

Patented Feb. l3, I900. D. A. HENSLEY.

LINOTYPE MACHINE.

(Application filed Aug. 21, 1899.)

3 Sheets-Sheet I (No Model.)

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Pate nted Feb. l3, moo. D. A. HENSLEY.

LINOTYPE MACHINE.

(Application filed Aug. 21, 1899.)

3 Sheets-Sheet 2.

(No Model.)

No. 643,289. P t t d Feb. I3, I900. D. A. HENSLEY.

UNUTYPE MACl-HNE.

(Application filed Aug. 21, 1899.) (No Model.) 3 SheetsSheett 3A @mwwi Q TNE "cams prrzns co., Fume-Unavv WASHINGTON, n c,

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DAVID AUSTIN HENSLEY, OF VICKSBURG, MISSISSIPPI, ASSIGNOR TO THE MERGENTFIALER LINOTYPE COMPANY, OF N EVV YORK.

LiNOTYPE-MACHINE.

$PECIFIGATION forming part of Letters Patent No. 643,289, dated February 13, 1900. Application 51911 August 21, 1899. Serial No. 727,948. (No model.)

To all whom it may concern:

Be it known that I, DAVID AUSTIN HENSLEY, of Vicksburg, county of Warren, and State of Mississippi, have invented a newand useful Improvementin Linotype-Machines, of which the following is a specification.

In Mergenthaler linotype-machines of the character represented in Letters Patent Nos. 436,531 and 557,000 the composed line of matrices is transferred into a vertically-movable yoke, commonly known as the first elevator, which carries the line down until the ears on the front'of the matrices are below the level of the mold,which then advances horizontally toward the matrices until its edge overlies the ears, after which the yoke rises slightly in order to lift the ears of the matrices against the under edge of the mold, and thus effect their exact alinement.

Automatically-acting devices are provided to throw the driving mechanism. out of action in the event of the elevator failing to lower the matrices to the required extent. In practice it sometimes happens that although the driving mechanism is thus disengaged the momentum of the parts will cause them to continue their movement, so that the mold will be carried forward against the matrices standing above the proper position, the effect being that the lower corner of the mold encounters and mutilates the ears of the mat rices.

The principal object of the present improvement is to prevent this occurrence by arresting the motion of the parts the instant that they are thrown out of gear in a definite position; and to this end it consists in combining with the moving parts of the Morgenthaler machine having automatic throw-out devices a yielding stop or resistant tending to check their motion while the mold is still distant from the matrices. This yielding resistant may obviously be made in different forms and modified in location without changing essentially its mode of action or departing from the limits of my invention, provided it is combined-with the other parts peculiar to the Mergenthaler machine. I prefer, however, as the most simple and satisfactory construction the provision of a notch or shoulder 1n one of the ordinary justification-cams and in such position that the roller on one of the justification-levers will be forced upward by the actuating-spring against the shoulder in the cam when the parts are in proper position for stopping. The shoulder thus arranged serves as a stop sufficient to arrest the momentum of the parts and stop the mold at a distance from the matrix-ears after the drivin gdevices are disconnected,while at the same time the parts are permitted to advance without unreasonable resistance when the driving mechanism is again thrown into action.

In the accompanying drawings I have represented my improvement as embodied in the ordinary commerciallinotype of the present day, such parts only being shown as are necessary to an understanding of the-invention.

Referring to the drawings, Figure l is a Vertical section from front to rear, showing the mold; the elevator containing the ma trix-line, the throw-out devices, the operating-cams, and other attendant parts of an ordinary ma chine, with my improvement incorporated therein. Fig. 2 is a similar view illustrating the old construction and the manner in which the parts overrun. Fig. 3 is a similar view, on alarger scale, through the mold and adjacent parts, illustrating the manner in which the mold injures the matrices. Fig. 4 is a similar view with the parts in their proper positions. Fig. 5 is an outline view illustrating the manner in which the ordinary cam is modified.

Referring to the drawings, A represents a line of matrices supported from a verticallyinovable yoke or first elevator B, which is sustained by the vertically-guided arm or slide 1), so that the matrices received at a higher level may be lowered to a position in front of the mold preparatory to the casting of the slug or linotype therein.

0 represents the slotted mold, mounted in a vertically-revolving wheel D, carried by a journal on the front end of the horizontallymovable slide E, which is reciprocated by means of the swinging arm F, pivoted at f and actuated by a grooved cam G on the main shaft H.

When the parts are operating properly, the elevator B lowers the line of matrices A until the cars at their lower ends are below the level of the mold, after which the slide E advauces, carrying with it the mold-wheel and mold until the lower edge of the latter overrides the matrix-ears, after which'the elevator B is lifted until the ears are forcibly seated against the under side of the mold and the matrices thereby brought into accurate alinement, as shown in Fig. 4, preparatory to the casting operation. If, however, the elevator for any reason fails to descend with the matrices to the full extent necessary, the ears of the matrices will stand wholly or partly above the lower edge of the mold, and if the latter advances it will strike against and mutilate the ears, as shown in Figs. 2 and 3. v

In order to control the motion of the machine by the descending elevator, there is provided a throw-out mechanism, consisting of a vertically and laterally movable bar I, which acts laterally against a lever J for throwing the driving mechanism of the machine out of action. The bar I is held normally in an elevated position by spring K, and it carries on its side face a shoulder or lip L, which rises and falls past the end of the horizontally-sliding pin M, the rear end of which is adjacent to the face of the moldwheel. WVhen the elevator descends far enough to properly place the matrices in position, it pushes the bar I down until the shoulder L is below the slide M, and the machine is permitted to continue its operation. If, however, the elevator B stops before it has descended to the proper point, the shoulder L will stand opposite the end of the slide M, as shown in Fig. 1, and the moment that the mold begins to approach the matrices it will push the slide forward against the shoulder L, and thereby swing the stop-bar I forward, causing it in turn to actuate the lever J and throw the driving parts out of action in the manner fully explained in Patent No. 436,532. If, however, the parts are running rapidly and freely, it will sometimes happen that their momentum will carry them forward and the mold will advance against and injure the matrices, although the driving devices are out of action. To this end I provide one of the usual justification-cams N, mounted on the main shaft H, with a shoulder at, formed by recessing or cutting away the edge of the cam. This cam acts on the roller 0, carried by the justificationlever O, urged constantly upward by a rod P, actuated by the lifting-spring Q. This lever and its companion S, actuated by a separate cam, are constructed and arranged to operate in the ordinary manner, and they serve through intermediate parts to lift the bar T, which pushes the justifying wedges or spacers U upward through the matrix-line in the ordinary manner. The cams, as usual, make one revolution for each complete action of the machine, and the shoulder n is so located that it arrives at the roller 0 at the instant when the throw-out devices are operated. As the roller is urged upward by the spring forcibly against the cam the shoulder 41, encountering the roller, serves as a yielding resistant, its opposition to the continued motion of the cam being sufficient to check the momentum of the parts and bring them to rest before the mold advances against the matrices. This shoulder a, operating as described, is of the essence of my invention and is the only feature in which the mechanism shown differs from that now in general use.

The manner in which the parts are liable to overrun in the absence of the shoulder is clearly shown in Fig. 2, in which it will be seen that the cams have continued their rotation beyond the position at which they are held in Fig. 1, with the effect of carrying the mold against the matrices.

Having thus described my invention, what I claim is 1. In a linotype-machine such as herein described, a yielding resistant, substantially as described, to arrest the motion of the parts and hold the mold away from the matrix-line when the driving mechanism is thrown out of action.

2. In a linotype-machine, the combination of the justifying-lever andits roller, its actuating-spring, and the cam, acting on the roller in opposition to the spring and provided with the special shoulder or, whereby the customary spring is given the additional function of arresting the motion of the parts in a definite position.

3. In a Mergenthalerlinotype-ma chine, the cam N, having the peripheral surfaces as usual to actuate the justifying-lever, and havin g also a shoulder 02, substantially as and for the purpose described.

In testimony whereof I hereunto set my hand, this 26th day of July, 1899, in the presence of two attesting witnesses.

DAVID AUSTIN I-IENSLEY.

WVitnesses:

CHAS. H. BITTERMAN, M. J. MCAULIFFE, Jr.

ICC

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