US116304A - Improvement in stereotype-molds - Google Patents

Improvement in stereotype-molds Download PDF

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US116304A
US116304A US116304DA US116304A US 116304 A US116304 A US 116304A US 116304D A US116304D A US 116304DA US 116304 A US116304 A US 116304A
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mold
stereotype
molds
improvement
matrix
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SABIC Global Technologies BV
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Assigned to SABIC INNOVATIVE PLASTICS IP B.V. reassignment SABIC INNOVATIVE PLASTICS IP B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENERAL ELECTRIC COMPANY
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents

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  • My invention consists in constructing.; ⁇ the molds used by stereotypers to hold the matrix from which the stereotype plates are cast with a sur face of soap-stone, the object of which is to have the surface ofthe mold'in contact with the met-al an-d the matrix of such character that the plate, after being cast, will readily separate from it, and also that anyT moisture between the bottom ofthe matrix and the face of the mold in contact with it may be absorbed.
  • Figure l is a side elevation of a stereotypeplate mold constructed in accordance with my invention.
  • Fig. -2 is a similar view with thecover of the mold raised and the mold turned to a horizontal position to receive the matrix.
  • Fig. 3 is a back view'of a portion of the mold, showing the arrangement of the catches for holding the mold in a horizontal position.
  • the mold is made of iron, and balanced in bearings B inthe frame A so as to maintain a nearly perpendicularposition, as represented in Fig. l.
  • the two parts ofthe mold are hinged together at b, and are pro vided with stops c c to hold ⁇ 'the cover G when turned back, as in Fig. 2.
  • the plates a c are composed of soap-stone, and are att-ached to the iron plates C U in any suitable
  • the catch c is secured to the trip-lever G, and is so arranged that when the mold is turned to a horizontal position it will engage with the catch j' and hold the mold ldown to receive the matrix or to allow the cast plate to be removed.
  • the clamp-bar E is pivoted at one end to the upright post D, and is provided with a hook, d, on the other end, which embraces the head of the post on the other side of the mold, (not shownin the drawing.) It has a screw, F, working ⁇ through it, which serves to secure the cover in place.
  • the mold When the mold is used, it is held in a horizontal position by the catches ef, and the cover is thrown up. The matrix is then laid on, and the gauge-bars H adjusted to govern the thickness of the plate to be cast. The cover is closed and secured by the clamp-bar E and screw F, and the mold turned to an upright position to receive the metal.
  • the molds composed entirely of metal it is necessary to have a layer of paper interposed between the metal that is poured into the mold and the surface ofthe cover. This layer is pasted upon the inner face of the cover, and requires to be removed whenever it becomes loosened or burned oli.
  • soap-stone surface I am enabled to dispense with the use of the layer of paper, and also to prevent the formation of steam between the surface of the mold and the matrix in contact with I claim-
  • soap-stone plates a c constructed substantially as and for the purposes set forth and specified.

Description

manner.
UNITED STATES PATENT OFFICE.
LOUIS GEX, OF NEW YORK, N. Y., ASSIGNOE TO R. HOE 86 CO., OF SAME PLAGE.
IMPROVEMENT IN STEREOTYPE-MOLDS.
Speciication forming part of Letters Patent No. 116,304, dated June 27, 1871.
To all whom it may concern:
Be it known that I, LOUIS GUEX, of New York, in the county and State of New York, have invented certainnew and useful Improvements in Molding-Gases for Stereotypers7 Use, of which the following is a specification:
My invention consists in constructing.;` the molds used by stereotypers to hold the matrix from which the stereotype plates are cast with a sur face of soap-stone, the object of which is to have the surface ofthe mold'in contact with the met-al an-d the matrix of such character that the plate, after being cast, will readily separate from it, and also that anyT moisture between the bottom ofthe matrix and the face of the mold in contact with it may be absorbed.
Figure l is a side elevation of a stereotypeplate mold constructed in accordance with my invention. Fig. -2 is a similar view with thecover of the mold raised and the mold turned to a horizontal position to receive the matrix. Fig. 3 is a back view'of a portion of the mold, showing the arrangement of the catches for holding the mold in a horizontal position.
The mold is made of iron, and balanced in bearings B inthe frame A so as to maintain a nearly perpendicularposition, as represented in Fig. l. The two parts ofthe mold are hinged together at b, and are pro vided with stops c c to hold `'the cover G when turned back, as in Fig. 2. The
plates a c are composed of soap-stone, and are att-ached to the iron plates C U in any suitable The catch c is secured to the trip-lever G, and is so arranged that when the mold is turned to a horizontal position it will engage with the catch j' and hold the mold ldown to receive the matrix or to allow the cast plate to be removed. The clamp-bar E is pivoted at one end to the upright post D, and is provided with a hook, d, on the other end, which embraces the head of the post on the other side of the mold, (not shownin the drawing.) It has a screw, F, working` through it, which serves to secure the cover in place.
When the mold is used, it is held in a horizontal position by the catches ef, and the cover is thrown up. The matrix is then laid on, and the gauge-bars H adjusted to govern the thickness of the plate to be cast. The cover is closed and secured by the clamp-bar E and screw F, and the mold turned to an upright position to receive the metal. In the use of molds composed entirely of metal it is necessary to have a layer of paper interposed between the metal that is poured into the mold and the surface ofthe cover. This layer is pasted upon the inner face of the cover, and requires to be removed whenever it becomes loosened or burned oli. By employing a soap-stone surface I am enabled to dispense with the use of the layer of paper, and also to prevent the formation of steam between the surface of the mold and the matrix in contact with I claim- As an improvement in stereotype-moldin g cases the use of soap-stone plates a c, constructed substantially as and for the purposes set forth and specified.
LOUIS GUEX.
Witnesses v SAMUEL P. BELL, JNO. H. LooKwooD.
US116304D Improvement in stereotype-molds Expired - Lifetime US116304A (en)

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