US1122842A - Printing-slug. - Google Patents

Description

TTED b TATES PATEN @FFJWE.

WILLIAM R. ALLEN, F CLEVELAND, OHIO, ASSIGNOR TO THE AMERICAN MULTI- GRAPI-I COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

PRINTING-SLUG.

massacre.

Original application filed June 18, 1914, Serial No. 845,758.

Specification of Letters Ifatent.

Divided and this application filed November 2,

1914:. Serial N0. 869,750.

To all whom it may concern:

' exact description,

State of Ohio, and useful Improvement in Printing-Slugs,

of which the following is a full, clear, and

reference being had to the accompanying drawings.

his invention relates to printing slugs adapted to stand a short height-to-paper and of a form which may be readily mounted in grooved or slotted holders, as for example the Multigraph drum, slotted type plates, etc.

The objects of the invention are to provide such a slug in a form which may be very cheaply, produced, will hold itself in place while in use, and will receive the printing pressure on thus insuring accuracy of height.

This application is a division of my copending application No. 845,753, filed June 18, 1914, which relates to the process of making slugs.

Thepresent invention comprises a slug having a T-head, a shank and a corrugated portion, pressed laterally from the shank somedistance below the head and at the bottom of the slug. This corrugated portion, in conjunction with the overhanging head, provides in effect, grooves on the opposite sides of the slug, w rich hold it in place; at the same time, the construction admits of the head, which carriesthe printing pres sure, having its original cast form, thus insuring accurate height-to-paper. It is a characteristic of the corrugated or Wavy ribs formed on the shank, that projections on one side come opposite indentations on the other. It is possible therefore, not only to insert the slug lengthwise, like an ordinary grooved slug, but laterally, directly from the side of a. member having a wavy slot, and hold the slug in place by shifting it slightly, lengthwise. The slug is illustrated in the drawings herein and is hereinafter more fully described.

'In the drawings Figure 1 is a perspective an or1ginal cast surface,-

view of my slug;

Fig. 2 is a bottom View thereof; Fig. 3 is a perspective view of the cast primary slug, from whichthe finished slug of Fig. 1 is produced; Fig. 4 is a cross section through suitable mechanism to act on opposite sides of the shank of the primary slug to corrugate it and shear off the lower portion; Fig. 5 is a plan of the corrugating blades of the apparatus shown in Fig. l; Fig. 6 is a vertical section through an apparatus of the Mergenthaler type for casting the slug shown in Fig. 3.

As shown in Figs. 1, 2 and 4, the slug of this invention has an overhanging head A carrying a line of characters B, and beneath this head and preferably located centrally thereof, is a flat sided shank C. Adjacent to the lower edge of this shank on opposite sides thereof, are wavy ribsD and D. These ribs come opposite each other and the projecting portions of one rib are opposite the indentations of the other. Thus the ribs may be conveniently made by pressure against the opposite sides of a plane sided shank, by a pair of blades having complementary sinuous edges. Such blades areshown in Fig. 5 and designated 10 and 11. The sinuous edges of these blades appear at 12 and 13 respectively, from which it will appear that the hump of oneedge comes opposite the depression of the other.

seen that when such shank is pressed by the blades mentioned, the portions between the blades will be distorted in opposite directions, producing a scalloped or wavy rib on each side of the shank.

Fig. 3 illustrates av primary slug adapted to be cast in a Mergenthaler or similar machine, and thereafter treated to make my finished slug. This primarv slug has a head C in this figure, in-. dicates the shank of the slug. It will be.

PatentedDec.29,1i9l-4l.

solid mold having a narrow cavity 22 for the shank of the slug and a communicating larger cavity 23, for the head. 25 indicates a line of matrices adapted to stand against the mold; 26 is a melting pot on the opposite side of the mold, having a jet opening 27, communicating with the mold space 22. .By such mechanism the slug shown in Fig. 3 may be easily cast with the regular Morgenthaler apparatus, equipped with a substi tuted mold. After casting, the slug is ejected and the sides of the head trimmed, and it is then ready for treatment to form wavy ribs and to ,shear ofi the shank below the ribs. As the formation of the ribs by pressure from the body of the shank causes the ends of those ribs to project slightly beyond the original end of the shank, I taper such end of the shank inwardly adjacent to the head, as shown at c, in Fig. 3. Accordingly, projections on the ribs beyond the edge of the shank, do no harm, as such extensions are still less than that of the cast head.

Fig. 4 illustrates a suitable apparatus for corrugating and shearing the shank of the plug shown in Fig. 3. This apparatus consists briefly of a pair of corrugating blades 10 and 11, above referred to, a pair of knives 14 and 15, to which the blades are secured,

a pair of supporting plates 16 and 17 slidably mounted on the blades 10 and 11, and

' a pair of centering blocks 18 and 19, which may be rigidly secured to the knives and the blades 10 and 11, and movably carry the supporting plates 16 and 17. These plates are normally pressed a limited distance toward each other by springs 30. The parts mentioned maybe mounted in two holders 31 sides, and the knives I tion is suitably pressed downward.

and 32, which are adapted to be caused to approach or recede from each other.

' With such an apparatus as described, the holders being a suitable distance apart, such a slug as shown in Fig. 3 is dropped into place between the separated parts, the head resting on and being supported by the plates 16 and 17; then the holders 31"and32 are caused to approach each other (the supporting plates moving relatively backward) and the blades 10 and 11 corrugate the shank to produce the wavy ribs on opposite 14 and 15 shear oif the shank immediately below the ribs. During this operation, it is preferable to hold the slug firmly seated on the plates 16 and 17, by pressure againstits face,--for example by a roller (indicated by the broken line 35) which may be moved out of the way'to allow the slug to be placed, but in opera- Fig. 4 shows the final position of the parts,-the knife edges meeting, the blades having moved past the respective faces of the shank, the plates their outer ends abut fixed stops, and the shank,

having relatively receded until edges of the blocks abutting the sides of the head.

Such an apparatus as shown more fully in last described is my parent application No. 845,753. Essential featuresthereof are 2. A rintin slu com risin a shank a b b D 1 head projecting in opposite directions from the shank, and corrugations formed from the body of theshank and rojectingin opposite directions and space below the head.

3. A printing slug consisting of a T-head, a shank, and corrugations adjacent to the lower edge of the shank and formed on opposite sides of the shank and spaced below the T-hea'd.

4. A printing slug comprising a T-head and a shank, the material of the shank adjacent to its lower edge and some distance below the T-head beingpressed in opposite directions to make lateral projections on each side, giving the effect of a grooved slug.

5. A line slug having a longitudinal a longitudinal T-head' thereon, characters on the T-head, the shank at its lower end and for some distance above that end being made wavy to produce projections on opposite sides of the shank, said projections being spaced a material distance below the under face ofthe T-head.

6. A line slug having a T-head, a shank and wavy ribs on opposite sides of the shank spaced from the head, projections on the rib at one side coming opposite indentations of the rib on the other side.

7. A line'slug comprising an 'overhanging head, a shank, and ribs at the bottom of the slug on opposite sides of the shank, said ribs being opposite each other and each rib having projections extending beyond the sides of the rib beneath the shank, the projections of one rib coming opposite the indentations of the opposite rib.

8. As a new article ofmanufacture, a line slug having a head with an original cast under surface, ashank depending from the head, and wavy ribs on opposite sides of the shank somedistance below the head, the projections of the ribs of one side being opposite the indentations of the rib on the other side.

9. A line slug comprising an overhanging head, a shank, interrupted ribs on'the opposite sides of the shank, each rib consisting of projections and indentations, the pro- In testimony whereof, I hereunto affix my jections on one side being opposite the insignature in the presence of tWo Witnesses. dentations on the other.

10. A line slug comprising an overhang- WILLIAM 5 ing head, a shank, and-outwardly pressed Witnesses: v

projections on each side of the shank oppo E. F. KOENIG,

site indentations into the shank. D. C. BLACKIE.

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