US1004030A - Graduated mold-cap auxiliary and movable liner. - Google Patents

Description

L. HURLEY & G. A. BREWTON.

GRADUATBD MOLD GAP AUXILIARY AND MOVABLE LINER.

' APPLICATION FILED MAR. 22, 1911.

' 1,004,030. Patented Sept. 26, 1911.

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LAWRENCE Ht'IRLnYh'ND CHARLES A. BREWTON, or

WASHINGTON, DISTRICT OF COLUMBIA.

GRADUATED MOLD-CAI AUXILIARY AND MOVABLE LINER.

To all whom it may concern:

Be it known that we, LAWRENCE HURLEY and CHARLES A. BREWTON, citizens of the United States, residing at Washington, in

the District of Columbia, have invented new and useful Improvements in Graduated Mold-Gap Auxiliary and Movable Liners, of which'the following is a specification.

This invent-ion relatesto type bar or slug casting machines, and' has for its object to provide an inexpensive, efiicient and durable means for adjusting the length of the mold. The drawings illustrate its ap lication particularly to the well known Iergcnthaler 5 linotype machine now in general use in printing offices in this country.

It is an important object of the invention to provide such adjusting means adapted to be lised with the several forms of mold now in use on the Mergenthalermachines, with- ,out requiring structural modifications thereof, and without changes in their operation .or manipulation.

, In theMergent-haler machine, the slug, or

' linotype is cast in a disk-like mold wheel having a mold therein opening on both sides of the disk and disposed at right angles to a radius of the axis of the wheel. Improvements have been made in many different Ways to accomplish adjustment of the slot to form slugs of various lengths and thick-' nesses.- These have included central liners adjustable in length and adapted to be engaged in the mold to limit its length; molds,

the sides of which are movable relatively,

riliners sliding longitudinally in the mold slot, and sets of block liners adapted to be secured at one end of the mold each of a length necessary to limit the, slot to the size 40 of a respective standard sized slug. As

combining accuracy in producing slugs of proper size, simplicity of adjustment, simplicity and economy in manufacture, and a 1 f, minimum depreciation inefficiency through i {1 wear, it has been found desirable by the makers of the Mergenthaler machine to use a mold comprising relatively movable cap and bottom plates carried by the mold wheel, and solid liners of various lengths and thicknesses. This construction is followed at this date, and will be familiar'to those versed in the art. Owing to the large number of liners required under this system to form the various lengths of slugs usually 5 required in printing ofiices, a complete Speeiflcation of Letters Patent. P t fit d t 2 91 Application filed March 22, 1911.

Serial No. 616,206.

equipment thereof costs several hundred dollars, as they cost one dollar or more each.

It is therefore an aim of this invention to provide a single liner element of simple form adapted to be used in conjunction with the usual 'end liners, or to be substituted for one of the latter, to be clamped between the mold plates in the-customary manner employed with the special length liners, to form slugs of any desired standarddength; and which may be manufactured at a cost but little in excess of that of a single one of the liners now customarily employed. This device may be termed a movable liner.

It is an end of the invention to obviate 70 the necessity for special mechanism or special tools in changing the mold to vary the slug length. r

' A further object is to form a slug with ribs so spaced as to provide a sufiicient'numher even on the shortest slug, to insure the proper alinement of the slug when locked in the form. It is the case with slugs from the molds generally used, on which these ribs are widely spaced, that when a short slug is formed a considerable part at one end is left without a rib, and locked with adjacent slugs the end without a rib is likely to be forced out (of line, a fault overcome under our method. a

Another object is to utilize the rib-form-. ing grooves of the mold to perform the function of retaining the movable liner in its various positions. a As it is undesirable to have the ribs on a slug formed at intervals less than one pica, and as it is often necessary to cast a line measured in units of half a pic a or nonpareil-it is a further object to so form the movable liner that while being positively positioned by engagement with the pica spaced rib grooves, it may be utilized to alternately form slugs terminating at or intermediately of the pica unit intervals.

Prior liners, adjustable in length, have: 100 usually involved the objectionable feature that when lengthened interstices are formed, into which the molten metaluis admitted, clogging the liner .parts and involving labor in cleaning before a change may be made. 10 It is an advantage of our invention that such objection is overcome by the inoorporation of movable means within the boundary of a liner of constant dimensions to control its position at slight intervals whereby It is a valuable feature of the inventionthat by so spacing the grooves, and forming a slug may the movable liner so as to cooperate there'- with, the operator will have a positive indication in the mold itself of therproper point at which to dispose the limiting device-the movable linen-without the use of a rule or other measuring appliance separate from the mold and similarly, the length of be be readily determined, by the number of ribs thereon, and the amount of material, if any, projecting beyond the last rib at one end, the other end rib being flush with the end of the slug. The generally adopted scale of line measurement is graduated in units of picas and half-pleas, or nonpareil.

Other objects parent from the from the'drawings, in which,

Figure 1 is a front view of a mold assembled, with the present invention incorporated therein, and. arranged for producing the maximum'length of slug, measurable in picas; Fig. 2 is a similar view showing and advantages will'be apfollowing description, and

the old form of mold equipped with the inmold capauxiliary posltion; Flg.

in the adjacent grooves vention, and adjusted to form a slug of reduced size measurable'in units of nonpareil, or half-picas; Fig. 3' is a bottom view of the for the old type; Fig. 1 is a'plan of the movable liner in pica unit 5 is a similar view showing the movable liner 1n nonpareil position; Fig.

' 6 is a plan of the base member of the movable liner; Fig. 7 is a similar view of the di'fierential plate of the movable liner. 5

There is shown in Fig. 1 a bottom mold plate 1.0 and. a cap plate ll'ofsubstantially the usual form, and adapted to be pngaged in the usual form of mold wheel in the customary manner. The mold face 12 of the bottom plate is smooth and accurately planed, while the mold face 13 of the cap plate is provided with amultiplicity of transverse grooves 16 which may be shape inany desirable transverse form, bu't which as shown are approximately V shaped and have equally inclined sides 15. {The maxi.-

mum width of the grooves at the front'of the mold is a-scant one-sixteenth of aninch and they are tapered to sligthly less than this at their inner ends. if desired, the bottom plate may be provided with the regular guide pins 17 at each end,-adapted toengage in a mortise recess of' the end liners 18 and 19, which in addition have ribs 20 conforming to and engaged snugly 16. The liners 18 and 19 form the ends of the mold space or slot 21, and allow the formation. of' the maximum length of slug. They are clamped bottom plates as herebolts 22 enshortened, We use d mg the base member 23, corresponding 1n base has also a back lines by the use of our devicew To limit the size of the mold constructed in accordance with our invention to an extent of three picas or less, the bolts22 may be loosened, theleft end liner removed and a movable liner to of grooves to hold it at the desired distance from the opposite end liner. I The left haul liner is preferably moved, and the right hand liner left undisturbed, to form the slug in proper position for ejection by the devices customarily employed. If themold is to be shortened more than three picas the left end liner should be allowed to remain in place while the movable liner is adjusted inwardly thereof, for when the movable liner is intermediately located in the mold some of the passages through which the metal has access to the mold, from the present pumping devices will then be located outwardly of the movable liner and a waste of metal would ensue if the end liner were not in place. between the left hand liner and the movable liner is closed by the left hand jaw of the matrix vise, which abut-s snugly against the front of the mold slot when a cast ismade, and is of sufficient size.

movable to engagelines of'matrices of different lengths, whereby is always properly positioned to close the forward side of the space between the movable and left hand liners.

a movable liner, compristhickness to the size'of the type to be represented on the slug, the edge or mold face 24 of the liner forming mold space, when in proper position. The I face 2& and an outer side face 24:. Asshown, the movable liner is three picas Wide. It extends the full depth of the mold slot when in place, ed to form a metal tight joint at the end'of -the line of matrices whenheld in position for the cast. Theupper side of the member 23 is milled out'to form a' slotor recess 25, having a stemportion very close to the mold face and having branches 27 extending inwar at rightanglesto the'stem. and spaced inward of the ends of the stem. The slot is quite shalloW,-althou'gh its 24: of the liner,

be described, adjusted so that its ribs may engagethe proper set f The front side of this space ltis automatically Therefore when the mold is to be the end wall of the and is adapt- -26 parallel and v dly dept-h may be n a-n'iber. 1

varied as desired and the stem portion opens on the front face 28 of the liner body 23. It will be observed that the slot 25 is completely isolated from the mold face 24,

I the back face 24 and the outer side face 24", whereby access of type metal to the recess is prevented.

. Disposed in the slot 25-there is a differential plate 30 conforming to the outline of the slot, but differing in size laterally in one direction-transversely of the stem. The stem 31 of the plate is narrower than the stem of the slot, and the arms 32 of the plate are shorter than the slot branches 27, although fitting snugly therein transversel of the arms. .The dlli'erence in size is suci as to allow reciprocation of the differential plate for a distance :of half a plea. A rib 33,-conforming in shape'to the grooves 16, is formed at the outer edge of the stem 31, and similar ribs 34 are formed on the arms 32, in alinement with each other and spaced laterally from the rib 33 one pica. The ribs project above the face ofthe base member 23', so that when the joker is inserted in the mold slot, the ribs 33 and 34 engage adjacent grooves 16 and hold the movable liner with its mold side in proper parallelism with the grooves. It will be seen that when the device is thus en aged and the base member-23 is'pressed outwardly against the differential plate, the slug will be cast in full pica measurement, while if the base be forced inwardly until checked by the differential plate, the amount of play being half a pica, the slug will be formed ofa length measurable in units of no'npareil or half picas. This is of ,esp'ecial advantage in newspaper work, where the standard column is thirteen picas wide, and it is frequently necessary to divide the column, producing lines. of six and one-half picas. The two stages "of adjustment are shown in Figs. 4 and 5. ,Many similar situations are involved in casting smaller or larger lines. It is "of/course understood that the clamping meansfengaging the cap plate is loosened when themovable liner is to be adjusted; and tightened again to hold the liner iriposition. I By the recess be ing opened on"tlie front face of the mold the operator may see at a glance how the dili'erential member set in the base To adapt the device to use upon the common form ofll/Iergenthaler molds already in use, wehave =provided' the mold cap auxiliary' plate 35 illustrated in Figs. 2,.and 3, which comprises a pl'gite substantially rect angnlar in form, and of the same dimension Kin-plan as the mold cap plate on its lower 'fa'ce, being mortised ateach end to receive the alining or guide pins 17 at each end of the bottom plate. It is provided on one side with transverse grooves-J6 similar to those 16 before described, and in use is positioned over the regular right and left endliners 37 and 38 with the grooves on'the lower side, the cap plate 11 being then clamped thereover, after which the movable liner may be adjusted therein whenever desired. It will be understood of course that the 'roportions of the parts'as illustrated may be changed and means utilized to secure the auxiliary cap plate to the regular ca plate more firmly, as may be found desira 1e.

In the useof the resent solid liners of special length for eac length of slug age is frequently done by operators failing to make the necessary change in the ejector device to accommodate it to the narrow slugs, and a too wide ejector coming against the special liner, either one or the other is damn ed. Such liability is obviated by the men? the movable liner described, as this may be readily forced out by the ejector, without damage. 7

A special thickness of base member 23 of the movable liner will be required for each font of type, or each different thickness of slug to be cast, but the same diiferential late may be used upon all the basesas may 0 understood by forming the slots of the same depth in all. The form of the slot or plate 30 is immaterial as lon as the necessary play of half a pica is al owed between the base and differential plate What is claimed is: 1. In a device of the class described, the combination with a mold having opposed sides and an end forming means, and having spaced grooves on one side opening on the ed e of the mold, of a. movable liner adapted to engage snugly between the grooved side and the op osite side of the mold, and comprising a ase member'having a recess in one side to lie adjacent the grooved mold side, lying in the recess and having a. rib portion projecting above the base member for engagementwith the grooves, said differential plate being narrower than the recess in a direction transverse to the rib, and being reci rocable in that direction relatively to the ase member.

2. The combination with a mold having transverse spaced grooves in one side, of a movable liner comprising a base member and a differential member movable thereon within the boundary of the base member, means for engaging the differential member against movement on the base member at certain positions, and a rib on the differential membe or engagement with the grooves of the mold whereby a single groove may be engaged to positively position the liner to form slug. of difi'erent lengths.

3. The combinati n with a mold of the class described having transverse spaced grooves in one side, of a. liner comprismg damand a differential plate a base member havlng fanmold race and an outer face and having a recess to be disposed adjacent the, grooved side. of the mold, said recess being isolated from the named faces of the base member, andadifierential member adjustable in the recess and having a rib to engage the grooves of the mold, and adapted to engage the base member tolimit it to positions spaced differently from said grooves.

- combination of a mold having separable units of printers measures,

side members, means for clamping the mem-" Bers in operative relation, and end forming means adapted to be clamped therebetween: one side having a" plurality of grooves spaced at intervals corresponding to certain comprising a mold limiting portion and a Copies of this patent may be obtained for a device of the 'class described, the

a liner member the grbov es whereby a single groove may be engaged to,positively position the liner to form slugs of two difi'erent lengths alternativel-y.

. 5. In a device of the class described, the combination of a grooved mold side and a movable liner member comprising a base portion aving arguide recess therein, and a differ ntial plate freely reciprocable in the recess in one direction for a distance difierin from that bet-Ween the grooves of the mol side, and means on the differential plate for engaging the grooves against movement ofthe plate transversely thereof, for the purposes described.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

LMVRENCE HURLEY. CHARLES A. BREWTON.

Witnesses:

PAUL F. Gnovn, H. L. Woonwanu' five cents each, by addressing the Commissioner of Patents,

Washington, D.- C.

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