US326009A - benton - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

I. BAAS, Jr.. 8v L. B. BENTON.

' TYPBMOLD. No. 326,009. Patented Sept`p8, 1885.

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TYPE MOLD. y No. 326,009. Patented sept. 8, 1835.

` (No Model.)

i y f1 L I 2 y UNITED STATES PATENT OFFICE.

ISAAC BAAS, JR., AND LINN BOYD BENTON, OF MILWAUKEE, VISCONSIN,

ASSIGNOBS TO BENTON VVALDO & CO.

'TYPE-MOLD.

SPECIFICATION forming part of Letters Patent No. 326,009, dated September 8, 1885. Application led May 19, 1884. (No model.) A

To @ZZ whom. t may concern:

Beit known that we, IsA'Ac Bans, Jr., and LINN BOYD BENTON, of the city and county of Milwaukee, and VState of Wisconsin, have invented certain new and useful Improvements in Type-Molds; and we do hereby declare that the following is a full, clear, and exact description oftheinvention,which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Our invention relates to molds employed in type-casting machines.

It consists, essentially,of a lug or stop-block, which is attached to one segment of the mold so as to strike against the other segment and prevent the lateral spreading of the mold.

Its object is to avoid what are technically called by type-founders swell-bodies.

In the accompanying drawings, like letters refer to the same parts in the several figures.

Figure l is a side elevation of a type-mold to which our improvement is applied. Fig. 2 is a perspective view of the upper segment ofthe mold, exposing its inner face, and Fig. 3 is a like View of the lower segment, the former being turned up and the latter turned down from the positions in which they are shown in Fig. 1.

A is the upper segment ofthe mold, and B the lower segment, which, relatively to the upper segment, is stationary.

G is the carriage of the upper segment, and C the carriage of the lower segment. a is the end of the opening which forms the mold proper.

F is the register of the upper segment, and F the register of the lower segment, between which the matrix is placed when the mold is in operation.

As heretofore constructed a more rapid movement of the type-machine or a quicker plunge of the pump by which the melted metal is forced into the mold, causing a greater pressure upon its walls, would force its sides a little farther apart, owing to a slight yielding or springing of the parts by which said upper segment, C, :is connected with the machine, thereby producing swel1- body type, so called. The variation thus produced in a single type is too minute to be detected bythe naked eye, but is readily distinguishable by the use of accurate measures 5 or gages, and when a number of such swellbody type are set in line this variation is .multiplied and becomes marked and troublesome. In order to overcome this difculty, we provide a stop-block, D, which is adj ust- 6o ably attached to the carriage C `of the upper segment, A, and projects downwardly, so as to strike and bear against the end of the carriage,` C of the lower segment, B, when the mold is closed. 65

In order to secure an'accuratc bearing between the stop-block D andthe carriage O', thesides of the mold proper, a, are brought snugly together, and the right-hand endsof the carriages C are accurately faced down 7o together in a plane inclined to the bodywise dimension of the mold, as seen in the drawings. The face of the stop-block D, adjacent to the carriages O C, is accurately faced in a plane parallel with that of the ends of said carriages. A plate, E, of such thickness as to permit suficent space between the sides of the opening at a, for casting type of the desired running-wise dimension, is inserted between the beveled end of carriage O and the 8o stop-blockD, which is brought snugly up against the same' by means of screws b, pass-V ing through said block and plate into carriage C. The beveled face of the stop-block D, attached to the beveled endv of carriage C, will therefore be parallel with the beveled end of carriage C', and when the segments A B of the mold are brought together will form a perfect bearing therewith. The beveled faces of the carriages C C and of the stop- 9o block D allow the upper segment of the mold to be obliquely lifted from the lower segment, in the usual way.

Vhen the segmentsof the mold are brought4 together in readiness vto receive the melted metal between them, the face of the stop-block D bears against the end of the carriage C', thereby preventing the further spreading apart ofthe sides of the mold proper at a.

For casting bodies of different running-wise roo dimensions, plates E of proportionate thickness are employed.

The stop-block D may be variously modified in form. Instead ot' beveling the ends of both carriages C C', we may face the end of carriage C in aperpendicular plane or parallel with the sides of the mold proper and make that portion of the face of stop-block D which rests against it or against the plate E to correspond therewith. Ve prefer, however, the construction first described. The location, also, of the stop-block D may be changed without departing from the principle of our invention. For instance, instead of attaching it directly to one of the segments of the mold, it may be attached to one of the mold-blocks, to which said mold-segments are rigidly secured when in use. rIhe nearer, however, the block is placed to the opening at a the more effective will be its operation, since the unequal expansion and the greater springing of the parts by which each segment is connected with the machine is thereby avoided.

Having thus described our invention, what we claim as new, and desire to seeurcrby Letters Patent, is

1. The combination7 with the segments which compose a type-mold, of a stop-block, D, substantially as and for the purposes set forth.

2. The combination of the carriages C C', of a type-mold having their ends beveled in parallel planes, and the beveled stop-block D, attached to the beveled end of carriage C, substantially as and for the purposes set forth.

3. The combination, with a type-mold, composed, as described, of two segments, A and B, of the carriages C G, stop-block D, adjustably attached to one of said carriages, and the plate E, inserted between block D and the carriage to which it is attached, substantially as and for the purposes set forth.

In testimony that We claim the foregoing as our own we afliX our signatures in presence of two witnesses.

ISAAC BAAS, JR. LINN BOYD BENTON.

Witnesses:`

V. C. CHASE, W'ALTER STODDART.

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