US1830584A - Tail holding means for castings - Google Patents

Description

Nov. 3, 1931. H. A. w. WOOD TAIL HOLDING MEANS FOR CASTINGS Filed May l0. 1929 2 Sheets-shew www Nov. 3, 1931.

H. A. W. WOOD TAIL HOLDING MEAN S FOR CASTINGS 2 Sheets-Sham Filed May 10. 1929 Patented Nov. 3, 1931 HENRY A. WISE woon, or new-Yorin, N.

Y., ASSIGNOR TO WOOD NFI/VS-PAIIEER MA- CHINERY CORPORATION, OF NEVI YORK, N. Y., A CORPORATION OF VIRGINIA p TAIL HOLDING MEANS FOR CFAS'IINGS` Appueation :ned May 1o,

This invention relates to means for holding the tail of a casting, particularly a curved lsterotype printing plate, on a part of the mold jon .which it is cast, after the tail is severed Vfrom the plate.

The principal objects of the invention are to provide means for` supporting the tail on the cylinder .which will act irrespective of -the length of the tail until the operator is readyto remove it; to provide means whereby the tail can be released from the support without undue strain on'the operator, and to provide these features in a simple, convenient and inexpensive form.

`Otherobjects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. l is a plan of a stereotype plate casting mold, showing a Vplate in position in the mold Aand a previously cast plate detached from the Acylinder with the tail in the position it occu ies at that time lig. 2 is a side View of the corresponding parts;

Fig. 3 is a radial sectional view showing thcutting of the tail from the casting;

Fig 4 is a sine view of a part of the cylinder showing the means for holding the tail;

Figs. '5 and 6 are transverse sectional views 0n enlarged scale on the lines 5-5 and 6-6 respectively of Fig. 4;

Fig. 7 isa view similar to Fig. 6 showing the positionof the tailv when being released from the core;

l Fig. 8 is a view similar to Fig; 5 showing a modification; f

Fig. 9 is a view similar to Fig` 7 vof the same modification, and

Fig. l0 is a view'similar to Fig. 8 showing Y 192e. serial No. 362,01?.

end of the cylinder of the mold. This system has limitations, among which is that the pins cannot hold tails which are too short to reach them and in ordinary practicethis occurs `fre-I quently.

. 5o In order to overcome these difficulties, the

cylinderl l() which cooperates with the usual back ll is provided lwith means, ordinarily located at two diametrical opposite points, v

forforming the tail in the act of casting the so ers 12, the tail which is moved with it will76`5 remain against the surface of the cylinder along its vlongitudinal center,during at least a part of the plate separating operation, and will be detached from this holdingmeans either by the movement of the plate or by alli() comparatively easy operationby Vthe hands of the operator.

Inthe form shown in Figs. 4, 5, 6 and 7, the means specified consists of a strip 13 losition and substantially throughout the length off the space in which the tail is cast. This strip is provided with undercut portions 14, either continuous. or preferably in .cated upon the cylinder in a longitudinal poi5 the form of'notches spaced apa-rt.` Between TSO the notches are screwrholes for the application of screws l5 for holding the strip on the cylinder. Obviously. the tail T of the plate P will be cast with integral dove-tailed teeth 16 extending into these notches or re- 85 cesses, which will hold the tail against the cylinder while the plate and tail` are being moved back. The effect of this is shown in Fig. l and also in Fig. 7.

It will be seen that the tail the cylinder on account of this strip along` its center and that after itis bent far enough i by the action of the 4pushers' 1.2, the teeth 'f o wil-l. cling to 9 16 will separate from the notches in which '95 they are cast and finally. after the plate is removed, the tail can'be detached by the operator grasping its opposite edges and bring. ing` it back a little further beyond the position in which. it` is left when the plate is lO entirely sepa-rated from the cylinder. This is comparatively easy for the operator.

When this arrangement is used it leaves the tail fixed and there is no danger of its dropping olf, no matter whether it is of full lengthor otherwise. These teeth 16 positively prevent the slipping of the tail longitudinally of the strip or downwardly along the cylinder.

The sameprinciple is involved in the twov modifications shown in Figs.'8, 9 and 10. In these cases, no strip has'to be formed on the cylinder, but the cylinder 10 is formed with a longitudinal dove-tailedgrecess 18 occupying the same space as the strip 13, that is,

t from a point a short distance above the saw Vof each fresh tail fuses its surface andy thus welds itto the new tail being` cast.

Furthermore, by employing a rather slight undercut bevel at 20 in a recess, as shown in Fig. 10, a wedging action is derived which prevents the tail from dropping but allows the operator to pull off the tail without undue effort. In this case the metal in the slot comes off the cylinder with the tail and a fresh one is cast on each new tail.

It will be seen that in any of the forms shown, the tail is positively held on the cyl- 'inder and yet the usual plate and tail pushers lare employed to partially separate the tail when ythe plate is moved off. The tail, however, is still firmly fixed to the cylinder in such a way that it will not drop or slide off even if used on a vertical cylinder and neither halfrwill be detached to slide off sideways in case of a horizontal cylinder. It will also be obviousl that the operator has to exert comparatively little effort Vto separate the tail, either in one or two parts, and discard it in the usual way and that nothing has to be done, in any of these cases, to the strip 13 or the dove-tailed projection 18 in order to get the mold ready for the next cast. This does not involve any material addition to the expense of the machine nor is it likely to necessitate any expense for repairs.

j Although I have illustrated and described only a few forms of the invention, I am aware of the fact that other modifications can be made therein by any person skilled in the art without departing from the scope of the inhaving a longitudinal strip thereon provided -with undercut recesses into which the metal of the tail will enter and form integral undercut teeth on vthe tail for the purpose described.

3. As an article of manufacture, a cylinder fora-stereotype printing plate mold having means longitudinally located within the body' of the tail ofthe plate for forming integral undercut projections on the inside of the tail to hold the tail on the cylinder.

il. As an article of manufacture, Va cylinder for casting a stereotype printing ,plate-i'V having a. longitudinal strip on its surface provided with undercut recesses along its sides into which the metal of the tail can enter during'the casting process to form projecting teeth to hold the tail against slidingzalong the cylinder whenthe tail is detached from.

, the plate.

5. As an article of manufacture, a cylinder for a stereotype plate mold having on dia.- metrically opposite sides thereof dove-tailed grooves extending longitudinally at the centers of the tails of the plates to be cast for receiving the metal of the tail when cast and holding t-he tail against movement along ory around the cylinder after the tail is separated from the plate. -f v A 6. As an article of manufacture,a` mold part having means by which the riser of the casting to be produced will have interengagement with ksaid mold partto hold the riser in position thereon .after vthe rest of the casting is removed. p l

7. The combination with a stereotype plate mold back, a cylinder therefor and plate pushers forV separating the plate by its edges free from the cylinder, of means for holding the tail of the cast plate to the cylinder along a longitudinal area. when the edgesof the tail are separated from the cylinder.

In testimony whereof I have hereunto affixed my signature.

HENRY A. Wren *i oon.

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