US228224A - sheldon - Google Patents
sheldon Download PDFInfo
- Publication number
- US228224A US228224A US228224DA US228224A US 228224 A US228224 A US 228224A US 228224D A US228224D A US 228224DA US 228224 A US228224 A US 228224A
- Authority
- US
- United States
- Prior art keywords
- cores
- sheldon
- mold
- core
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
Definitions
- Figure l is a view of the body of the mold.
- Fig. 2 is a view of the body with the cores in position; and
- Fig. 3 is a view of an inverted core, showing the transverse slots
- the object of my invention is to produce 1 greater strength and lightness in the backing of electrotype-plates.
- the invention consists in the novel construction of the mold, and in combining the newly-constructed mold with either one or more cores having transverse slots, as the above are hereinafter more fully set forth, and the combination claimed.
- A, Fig. 1 is the body of the mold, consistingot the bottom plate, the side E, fastened to the bottom plate, and pieces F F, one of which is fastened to the bottom plate and 0 the other to the end of the side E, to allow a slight motion in order to clamp the side G between the end pieces, adjustable side G, and the rod D, having a thumb-nut on one end and a thread on the other, and passing 5 freely through one end piece and screwing into a threaded hole in the other, as shown in the drawings.
- the core B is made in the form shown in Fig. 3. Its ends rest on the end pieces, F F,
- the sides of the core have not much draft, the bottom, in which the slots are out, being very little narrower than the top.
- the edges of the square ends made by the slots in the core are beveled, as shown in Fig. 3, and thus make a solid brace at the junction of the legs with the backingplate.
- the electrotype plate To use my improved mold, the electrotype plate, its back being tinned, is placed on the bottom plate, and, the cores being arranged as shown in Fig. 2, the melted metal is poured into the space between the cores or into the space between a core and a side.
- the spaces between the cores and between 5 5 a core and the sides may be varied by moving the adjustable side, the core or. cores thus making the legs of the backing of any thickness required.
- the cross-pieces made. by the transverse slots in the cores give strength to the legs of the backing and allow them to be cast very thin, and thus secure strength and lightness.
- the adjustable side is free to move upon the rod being unscrewed.
Description
iUNITED STATES PATENT OFFICE,
EULIUS B. SHELDON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO E. B. SHELDON & 00., OF SAME PLACE.
ELECTROTYPE-MOLD.
SPECIFICATION forming part of Letters Patent No. 228,224, dated June 1, 1880. Application filed January 2, 1880.
To all whom it may concern Be it known that I, EULIUS B. SHELDON, of New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Electrotype- Molds, of which the following is a specification.
In the drawings, which I hereby make a part of the specification, Figure l is a view of the body of the mold. Fig. 2 is a view of the body with the cores in position; and Fig. 3 is a view of an inverted core, showing the transverse slots The object of my invention is to produce 1 greater strength and lightness in the backing of electrotype-plates.
The invention consists in the novel construction of the mold, and in combining the newly-constructed mold with either one or more cores having transverse slots, as the above are hereinafter more fully set forth, and the combination claimed.
To enable others to make and use my improved mold, I will describe it and the way-in which it is used.
A, Fig. 1, is the body of the mold, consistingot the bottom plate, the side E, fastened to the bottom plate, and pieces F F, one of which is fastened to the bottom plate and 0 the other to the end of the side E, to allow a slight motion in order to clamp the side G between the end pieces, adjustable side G, and the rod D, having a thumb-nut on one end and a thread on the other, and passing 5 freely through one end piece and screwing into a threaded hole in the other, as shown in the drawings.
The core B is made in the form shown in Fig. 3. Its ends rest on the end pieces, F F,
and it is provided with the transverse slots indicated by the letter 6. The sides of the core have not much draft, the bottom, in which the slots are out, being very little narrower than the top. The edges of the square ends made by the slots in the core are beveled, as shown in Fig. 3, and thus make a solid brace at the junction of the legs with the backingplate.
To use my improved mold, the electrotype plate, its back being tinned, is placed on the bottom plate, and, the cores being arranged as shown in Fig. 2, the melted metal is poured into the space between the cores or into the space between a core and a side.
The spaces between the cores and between 5 5 a core and the sides may be varied by moving the adjustable side, the core or. cores thus making the legs of the backing of any thickness required.
The cross-pieces made. by the transverse slots in the cores give strength to the legs of the backing and allow them to be cast very thin, and thus secure strength and lightness.
The adjustable side is free to move upon the rod being unscrewed.
Having described my improved mold and the manner of using it, what I claim as new, and desire to secure by Letters Patent, is-- The body A, consisting of the bottom plate, side E, fastened to the bottom plate, end pieces, F F, one of which is fastened to the bottom plate, one end of the other piece being fastened to the end of the side E, adjustable side G, and rod D, clamping the adjustable side between theend pieces, in combination with either one or more adjustable cores provided with the transverse slots 6, substantially as shown and set forth.
EULIUS B. SHELDON.
Witnesses:
GEORGE TERRY, RoeER M. SHERMAN.
Publications (1)
Publication Number | Publication Date |
---|---|
US228224A true US228224A (en) | 1880-06-01 |
Family
ID=2297604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US228224D Expired - Lifetime US228224A (en) | sheldon |
Country Status (1)
Country | Link |
---|---|
US (1) | US228224A (en) |
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0
- US US228224D patent/US228224A/en not_active Expired - Lifetime
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