US901111A - Method of producing stereotype-bases. - Google Patents

Description

J. LEE. METHODOF PRODUCING STEREOTYPE BASES. APPLIU'ATION FILED NOV. 24, 1905.

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Patented Oct. 13, 1908.

J. L. LEE.

mBT ob or PRODUCING STEREOTYPE BASES.

- APPLIQATION FILED NOV. 24, 1905.

' 901,1 1 1. Patented Oct. 13,1908.

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JAMES L. LEE, OF PASADENA, CALIFORNIA.

METHOD OF PRODUCING s'rEREoTYPE-BAsEs.

Specification of Letters Patent.

Patented Oct. 13, 1908.

Application filed November 24, 1905. Serial No. 288,946.

To all whom it may concern: a

Be it known that I, JAMES L. LEE, a citizen of the United States, residing at Pasadena, county have invented certain'new and useful Improvements in the Methods of Producing Stereotype-Bases I-Iaving Soft Nailing-Strips Therein, of which the followingis a specification.

This invention relates to bases orblocks for stereotype and other plates, and to the method of making the same, and it has for its object to provide an improved,rigid, and efficient block or base having all the desirable qualities of both the wooden. and metallic forms of bases, and to,which base the plate may be readily attached by screws, tacks, or other devices. I

Another object of the invention is to provide an improved metallic base having soft portions incorporated therewith for the reception and retention of. the nails or screws used in attaching the plate, which block shall be of such a construction that it may be made in bulk and afterwards cut to any desired size without wasteat the edges, leaving the block firm and solid at all of its boundaries.

With a view to the attainment of these ends, and the accomplishment of certain other objects which will hereinafter appear, the invention consistsin the features of novelty which will now be described with referonce to the accompanying drawings, and then more particularly pointed out in the claims.

In the said drawings, Figure l is a plan view of a stereotype base embodying this invention, with a stereotype or other'plate secured thereto and partially broken away. Fig. 2 is a side elevation thereof. Figs. 3 and 4 are end elevations of opposite ends, respectively. Fig. 5 is a bottom view. Fig. 6 is a plan view of the strips and the sheet to which they are attached preparatory to being placed in the mold. Fig. 7 is a cross-section thereof on the line 7, 7, Fig. 6. And Fig. 8 is a cross-section of the mold with the strips therein ready for the reception of the metal.

1 is a metallic body which constitutes the body of the base, and which is preferably made of type metal or other similar material capable of being readily out into sections of the desired size. In this body are embedded or incorporated a plurality of soft portions 2, preferably parallel strips of wood, which are of Los Angeles, State of California,

of dove-tail shape in cross-section, as clearly shown in Figs. 2 and 3, With their larger sides turned inwardly so as to insure against upward movement or dislodgement. The surfaces of these wooden strips 2 are preferably flush with the surfaces of the metallic body 1, and the strips are arranged parallel with each other but diagonally with reference to the boundaries or edges of the base, and extend from the extreme edgesat allsides thereof, so that every side of the base will be penetrated bythe ends of one or more of these strips. The strips being placed at short intervals apart, it will be seen that all of the edges of a plate of ordinary size will project across one or more of the strips, into which the screws, tacks, or other like devices, 3, may be driven for, securing the plate (which is indicated at 4) in place. It will also be seen that this construction of base permits of its being manufactured in bulk-that is, in large sectionsand afterwards cut up into blocks or bases of any desired size, without liability of the marginal edges of the blocks falling along lines parallel with any of the strips 2. Should this occur, and the position of the plate should be such as to bring one or more of its edges at a distance from the strip, that edge would be Without means of attachment, and should one or more of its edges fall directly upon the strip, the strip being at theextreme edge of the base, the attachment would be insecure and that edge of the base would not possess the requisite firmness. The strip, moreover, would be liable to become dislodged. Hence it willbe seen that with the diagonal arrangement of the strips extending entirely from the extreme edges of the base on all sides thereof the base may be cut into sections of any desired size without waste at the edges, and without making it necessary to have the base any larger than the plate.

The commercial success of this article depends, of course, upon the degree of economy with which it may be manufactured, and therefore not the least im ortant object of the invention is to provi e an inexpensive and eflicient method of producing it. In Figs. 6 to 8 of the drawings are shown the various steps of a method suitable for the purpose. The woodenstrips 2, or strips of any other substance that may be em loyed for the purpose, are first secured (pre erably by glue, but by any other means if desired) to a sheet of paper 5, or any other suitable substance, and which is cut to fit within the mold cavity 6. The strips 2 being thus secured to a sheet may be more readily handled and laced in position in the mold than if handlbd individually, and moreover, they are less liable to become displaced by the flow of the metal or the manipulation of the mold members. The sheet 5 with the strips thus attached is then placed in the bottom of the mold as shown in Fig. 8, and there held down firmly in position by another member of the mold while the metal is being poured into the mold cavity. In this exemplification of the invention, the bottom of the base 1 is formed with intersecting ribs 7, which afford the requisite strength to the base, while at the same time permitting the same to be produced from the minimum amount of metal. The production of these ribs occasions the presence on the face of one of the mold members of a number of core-like projections 8, and these are utilized for holding the strips 2 against the bottom of the mold, or that face of the mold cavity which produces or defines the face of the stereotype base. As a consequence, it will be seen that the strips are exposed through both top and bottom as well as through all of the sides or edges of the base, and while they are encompassed by a sufiicient quantity of the metal of the base to hold them rigidly in place and enable them to perform their allotted functions, this amount of the metal nevertheless is thus reduced to the minimum, and hence the charring ol' the strips by the hot metal (which is liable to render them insecure and also to destroy their fibers) is also reduced to the minimum. After the upper mold memher 9 is put in place as shown in Fig. 8, the hot metal is oured through the sprue 10 as usual, thus filling the mold cavity and causl l r ing the [luid metal to completely encompass the strips 2 except where touched by the core )ro ect1ons S and the paper lacing 5.

Then the base thus produced is removed from the mold, it will be found that the strips 2 are exposed throughout their lengths through the face of the body portion, and are flush therewith. The base may be used as it comes from the mold, or ii desired its l'ace, together with the faces of the strips 2, may be dressed down to the proper height.

Ilaving thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is:

1. The herein described method of securing sol't nailing strips or portions in metallic stereotype bases, which consists in placing the said portions against that side of the mold intended to define the lace oi. the base, then resting a removable member of the mold against said portions to hold them in place in the mold, and finally "filling the mold while said portions are thus held.

2. The herein described method of securing sol't nailing strips or portions in metallic stereotype bases, which consists in first securing said portions to a thin sheet of suitable material, placing the said sheet with the portions attached in the bottom of the mold, then resting a removable men'iber ol the mold against said portions to hold them in place, and finally filling the mold while said portions are thus held.

In testimony whereol I have signed my name to this specification, in the presence oltwo subscribing witnesses, on this (3th day of November, A. l). 1905.

JAMES l1. LEE.

Witnesses:

A. E. LEwENBEnG, R. L. Srnvnns.

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