US939800A - Lino-slug-trimming machine. - Google Patents

Description

S. R. GARTER. LINQ-SLUG TRIMMING MAGHINE. v APPLICATION FILED JAN. 18, 1909.

Patented Nov. 9, 1909.

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939,800. Patented Nov. 9, 1909.

S. R. CARTER.

LINO-SLUG TRIMMING MACHINE.

APPLIOATION FILED JAN, 18, 1909.

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SAMUEL It. CARTER, OF NEW YORK, N. Y.

LINO-SL'LTG-TRIMMING MACHINE.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed. January 18, 1909. Serial No. 472,793.

To all whom it may concern:

Be it known that I, SAMUEL It. CARTER, a citizen of the United States, and a resident of New York city, Bronx, county and State of New York, have invented new and useful Improvements in Lino-Slug-Trimming Machines, of which the following is a specification.

This invention relates to a machine of novel construction for trimming lino-slugs, and more particularly for reducing the height of the quads constituting part of said slugs, although the machine may also be used for other purposes. The reduction of the height of the quads is particularly desirable with slugs which are only partly composed of characters, as is the case with slugs forming the beginning or end-line of a paragraph of printed matter. As with the lino-slugs hitherto used in printing, the height of the q iads is equal to the height of the corresponding type-body, or in other words, as there is no considerable difference in height between the type-section and quadsection of a slug, said quad-section is liable to be clogged with printers ink, so that the prints will gradually lose their cleanliness. As further the slugs have the tendency to move outwardly when assembled, said liability of the quads to be filled with ink is increased. To overcome this disadvantage I reduce the height of the quad-sections of the slugs to such an extent as to practically exclude any possibility of their being clogged with ink. For this purpose one or more slugs are clamped to a slide or carriage which may be so shifted as to bring the quads into engagement with a suitable cutting tool which is adapted to trim off the top of said quads, precaution being taken that any injury to the type-section of the slug is effectively prevented.

In the accompanying drawings: Figure 1 is a side elevation of aslug trimming machine embodying my invention; Fig. 2 a front View of the upper part of the machine; Fig. 3 a horizontal section on line 3-3, Fig. 2; Fig. 4, an enlarged plan of the slide and rail; Fig. 5 a side view thereof, showing the rail in section; Fig. 6 a cross section on line 6-6, Fig. i; Fig. 7 a similar section on line 7-7, Fig. 4; Fig. 8 a longitudinal section on line 8-8, Fig. 4; Fig. 9 a detail of the eccentrically slotted disk, and Fig. 10 a side view of a slug.

The numeral indicates a standard provided with a pair of vertically alined bearings 16, 17, within which a shaft 18 is journaled. To shaft 18 is secured a pulley 19 which receives motion through a belt or rope 20 running over idlers 21 and connected to any suitable motor, (not shown). The lower end of shaft 18 carries a cutter-head 22 provided with one or more downwardly projecting cutting tools 23.

Below cutter-head 22 there projects forwardly from standard 15, a bracket 2-1, to which a transverse rail 25 is secured by screws 26, or otherwise. Upon rail 25 is loosely mounted a slide or carriage 27 provided with a forwardly extending plate that constitutes the' support for the slugs 29 to be trimmed. Between plate 28 and the upper part of slide 27, there is formed a vertical shoulder 30 against which the slug or slugs are placed during the trimming operation, as hereinafter more fully described, the height of shoulder 30 being less than that of the slugs.

Upon plate 28 is slidably mounted a. movable jaw or clamping plate 31 the height of which is, substantially, equal to that of shoulder 30. Jaw l is provided with a pair of angular flanges 32 that engage the correspondingly stepped edges of plate 28. Within a recess 33 of plate 28 is rotatably mounted a circular disk 34: having handle 35. At its lower side, disk 3% is provided with a gudgeon 36 fitted into a corresponding boring of plate 28. Disk 34 has an eccentric slot 37 which is engaged by a pin 38 tapped into and projecting downwardly from plate 31. To a lug 39 of slide 27 is secured a relatively fixed handle 40 arranged in proximity to handle of disk 34. The form of slot 37 is such, that when handle is drawn toward handle 40, clamping plate 31 is advanced toward shoulder 30, owing to the engagement of pin 38 with slot 37. The rear side of plate 31 is preferably provided with a removable bar 41, the latter having a pair of pins 42 adapted to engage corresponding sockets of plate 31.

Slide 27 is provided with an index 4:3 extending rearwardly from shoulder 30, while rail 25 has a longitudinal slot at adapted for the reception of the reduced threaded stem l5 of an adjustable stop 46 adapted to be clamped to rail 25 by a nut L7 engaging stem 45. Into stop 46 is tapped a screw 48 that forms an abutment for slide 27.

If a slug 29 is to be trimmed, in order to reduce the height of its quad-section 49, said slug is introduced into the gap formed be tween shoulder 30 and jaw 31, in such a manner that said quad-section extends toward the right from index 43, while the character-section 50 extends toward the left from index 43. The operator then grasps both handles 35, 40, with the fingers of one handand draws handle 35 toward handle 40, thereby advancing jaw 31 toward shoulder 30, owing to the engagement of pin 38 with the eccentric slot 37 of disk 34. After slug 29 has thus been firmly clamped between shoulder 30 and ,jaw 31, the operator, while maintaining a tight grip on handles 35, 40, moves the slide 27, by said handles,toward the right, until the latter engages abutment 48. During this movement of slide 27, the horizontally rotating cutting tools 23 come into engagement with the quad-section 49 of slug 29 and reduce its height to the extent desired. The correlation between the cutting tools 23, index 43 and abutment 48 should be such that when slide 27 engages said abutment, the forward prolongation of index 43 constitutes a tangent of the circle described by the outer cutting edges :23 of the rotating tools23. As these outer cutting edges attack the slug advanced toward them in the manner described it will be seen that when the slide bears against abutment 48, the slug will be trimmed to a line coinciding with index 43. It is thus obvious that when the slug is clamped to slide 27 in proper manner, 0. when its type-section'50 extends toward the left from index 43, While its quad-section 49 extends to the right therefrom (Fig. 4), the advance of the slug will be automatically halted as soon as the quad has been trimmed from its free end up to the type-section 50 of the slug, so that any injury to said section 50 is prevented.

If desired, two or three slugs may be simultaneously secured to slide 27 for trimming purposes, which capacitymay still further be increased by removing bar 41, where by the gap formedbetween shoulder 30 and jaw 31 is correspondingly increased.

It will be seen that by my improved machine reliable and effective means are provided for reducing the height of the quads of linoslugs, so that clogging of the same with printers ink is prevented and the production of clean prints is insured.

I claim:

In a lino-slug trimming machine, a rail, an indexed slide engaging said rail, means for clamping a lino-slug to the slide, a rotary cutter having an outer cutting edge, and a stop adapted to be engaged by the slide, the correlation between the parts being such that when the slide engages said stop, the prolongation of the slide-index constitutes a tangent of the circle described by said outer cutting edge. 1

SAMUEL R; CARTER.

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