US 579939 A
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Description (OCR text may contain errors)
(No Model.) 2 Sheets-Sheet l.
H. E. DAWSON & W. H. NOYE. SHINGLB MOLD No. 579.939. Patented Mar. 30, 1897.
Mr] Jill/wc (No Model.) 2 Smets-Sheet 2. H. E. DAWSON 8v W. H. NOYE.
Patervlted Mar. 30', 1897.
F ly. .9.
Suva/nto@ M2117 awa 07?/ and IINTTnD STATES PATENT Ormea.
HENRY E. DAlVSON AND VILLIAM H. NOYE, OF ST. LOUIS, MISSOURI.
SPECIFCATON forming part of Letters Patent No. 579,939, dated March 30, 1897.
Application filed August 3, 1896. Serial No. 601,518. (No model.)
To @ZZ wir/0m t 71mg/ concern:
13e it known that we, HENRY E. Dawson and VILLIAM II. NOYE, citizens of the United States, residing at St. Louis7 in the State of Missouri, have invented certain new and useful Improvements in Shingle-Molds, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.
Our invention has relation to improvements in dies or molds for the making of clay shingles; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed out in the claims.
In the drawings, Figure 1 is a side elevation of adouble mold. Fig. 2 is an end view of the division plate or block separating the two halves of the double mold. Fig. 3 is a section on y g/ of Fig. 2. Fig. 4 is a vertical section of the mold, taken on the line zo :c of Fig. 5. Fig. 5 is a front elevation of the double mold. Fig. Gis a bottom plan view of the division plate or block. Fig. 7 is a plan view of one-half of the double mold with the division-plate removed. Fig. S is a section similar to that shown in Fig. 4, with the division-plate removed, Fig. 9 isa side elevation of a complete single mold. Fig. 10 is a rear view of the same, and Fig. 11 is a top plan view of the interior of one-half of the single mold.
The object of our invention is to construct a die or mold for the making of clay shingles; whereby a uniform product is always produced; whereby the danger of the shingle splitting as it is forced from the mold is reduced to a minimum; whereby the shingles formed or forced from a double mold are properly separated, so that those delivered from one side do not interfere with those delivered from the adjacent side; wherein the clay passing over the retardingsurfaces located adjacent to the nose-piece is positively forced to the edges of the shingle, thus well filling the shingle before it passes through the nose-piece by which the iinal form of the product is determined, and whereby the clay as it leaves the hopper of the clay-feeding m achine is positively directed to the retarding-surface, thus insuring a compact and homogeneous product.
The mold comprises certain other and further advantages which a detailed description will serve to bring out.
In detail the device may be described as follows:
The mold may be either a single or double one, but for commercial purposes we prefer the double mold, or one capable of turning out two shingles at one time.
Referring particularly to Figs 1 to 8, 1 1 represent the respective halves of a double mold united along the inner surfaces of the lateral flanges 2 by means of bolts 3 and adapted to be secured along their rear flanges 4 to the feed-hopper of any ordinary clayfeeding machine. (Not shown.) The sides of the flanges 2 are continuous with the sides of the iiauges 4.
lVe will confine our description to but one half of the double mold, as it will at the same time suffice to describe the other half. Leading forward a suitable distance from the rear end of the block, or that end along which the ange 4 is located, and converging gradually along the sides of the block are concave interior walls or surfaces 5 5, the adjacent edges of the surfacesbeing bounded by the plane inclined triangular surfaces G C, tapering in a reverse direction, (or toward the rear of the block,) said surfaces forming, as it were, a pyramidal ridge whose apex is located at the middle of the rear edge of the block or mold adjacent to the flange 4. The basal edges of the concave surfaces 5 5 form a semicircle, thereby making a complete circular opening at the rear end of the double mold when the two halves of the mold are assembled. The bases 8 S of the plane triangular faces of the pyramidal rid ge form the two rear forwardly-inclined edges of a plane retarding-surface 9,10- cated at the front end of the mold or block, the said surface 9 being depressed to the extent represented bythe shoulder 10 below what constitute the lateral supportin surfaces or ledges 11 for the removable division-plate 12, which separates the clay leading to the delivery-passages 13 of the terminal detachable nose-piece 14, carried at the forward end of the mold, said nose-piece being secured by means of bolts 15. The surfaces of the ledges l1 are inclined rearwardly to the plane of the coupling-surfaces 1G of the flanges 2, along IOO which the two halves are united. The depth of the rear end of the ledge 11 below the surface 16 is indicated bythe edge 17 of the rear limiting vertical wall of the ledge, (see Fig. 8,) and its depth at the front end being indicated by the front edge 1S of the vertical wall lf), which limits the ledge en one side. The width of the rear vertical limiting-wall is indicated by the shoulderiO. The shoulder 10, to the extent of which the plane retardingsurface 9 is depressed below the ledge 11, is extended rearwardly into the conical surface 5, thereby producing the curved corners 2l at the meeting-points between the rear forwardly-inclined edges S of the retarding-surface and the lateral edges or sides of said retarding-surface.
Vhen the two halves of the mold are assembled, the combined space formed between the ledges 1l of the respective halves is adapted to receive the clay-dividing plates 12, which are substantially wedge-shaped in form, the rear edge of each wedge being in line with the shoulders 2O and in the plane of the surfaces 1G. The adjacent faces of the wedge-shaped division-plates are plane, but
he opposite face of each plate is gradual outwardly convex-curved surface 23, tapering toward the rear edge of the wedge. Each wedge is provided on the side of its curved face with the lateral supporting legs or wings 2l, the shape of each leg corresponding to that of the supporting-surface of the ledge 11, on which the leg rests and along which it is adapted to slide, the depth of the forward portion of each leg corresponding, approximately, to the depth of the shoulder l0 and the depth of the rear portion of the leg gradually increasing from a point represented by the angle (from which point the width of the leg begins to decrease) to a depth indicated by the rear edge 2G of the terminal or rear wall of the leg, (see Fig. 2,) which is in line with the rear edge 27 of the wedge or division-plate. Thus the supporting-surface of each leg, resting, as it does, on the ledge 11, like the latter, is inclined to the general axis of the mold, the curved face of each wedge serving, in conjunction with the concave su rfaces 5 and the pyrainidal ridge formed by the plane surfaces G 6, to divide the clay as it is forced from the hopper (not shown) and properly direct the same to the front opening or delivery-passage of the mold, formed between the retarding-surfaces 9 and the forward plane portions of the curved faces of the wedges. The thickness of the said opening is of course equal to the combined depth of the shoulder 10 and the depth of the forward portion of the vertical wall of the leg 2l, the width of such opening being equal to the width of the retarding-surface 0. Each deliverypassage from the mold communicates with the passage 13 of the nose-piece 14, which gives iinish to the shingle and by which the nal form of the product is determined, the passages 13 diverging from oncanother outwardly, so that as the finished strip or shingle 2S is delivered from the nose-piece each strip of clay can be cut into required lengths and deposited on a separate traveling deliverybelt (not shown) withoutinterfering one with the other.
There a single mold is used, the two halves of the same are assembled along the surfaces 30, which correspond in position to the ledges l1. ln that case the division plates or wedges 12 are omitted, the delivery-opening 31 being formed. directly by the spaces between the retarding-surfaces 32 of the respective halves of such mold. ln other respects, however, the mold is the same.
y our improved construction the concave walls 5 5 serve as a means for directing the clay to the delivery or discharge opening of the mold, the pyramidal ridge serving to well fcrce and direct the clay into the edge or side of the shingle strip, thus producing a product which is compact, homogeneous, durable, and perfect.
Having described our invention, whatwe claim is- 1. ln a shingle die or mold, a suitable block having a rear curved edge, a flange located adjacent thereto for securing the block to a suitable clay-feeding machine, interior concave forwardly-converging walls or surfaces, a pyramidal ridge having plane faces separating the concave surfaces, the apex of the pyramid being located adjacent to the rear edge of the'block, and a suitable plane retarding-surface having forwardly-inclined rear sides, said sides forming the bases of the plane faces of the pyramidal ridge, substantially as set forth.
i. ln a shingle die or mold, a suitable block having a rear curved edge, a flange loca-ted adjacent thereto, interior concave forwardlyconverging walls or surfaces, a pyramidal ridge having plane faces separating the concave surfaces, the apex of the pyramid being located adjacent to the rear edge of the block, suitable ledges formed on each side of the forward end of the converging concave surfaces, a suitable plane retarding-surface located betweeu said ledges and depressed a suitable distance below the same, the bases of the plane faces of the pyramidal ridge forming the rear forwardly-inclined sides of the retarding-surface, said ledges adapted to receive a suitable division-plate, the adjacent surfaces of the plate and retarding-surface adapted to form the discharge-opening for the meld, substantially as set forth.
3. ln a shingle die cr mold, suitable blocks having lateral flanges having plane uniting or coupling surfaces, a rear circular edge adapted to form a circular opening for the feeding of clay or similar material, a circular flange surrounding said opening and located adjacent thereto for securing the mold to a clay-feeding machine, each half of the mold having inner concave forwardly-converging walls or surfaces, a pyramidal ridge having IOC- plane faces separating the concave surfaces, a forward plane retarding-surface having rear forwardly-inclined sides formed by the bases of the plane faces of the pyramid, a ledge on each side of the retarding-surface raised a suitable distance above the same, the supporting-surface of the ledge being inclined to the general axis of the mold and parallel to the plane of the retarding-surface,suitable division-plates having each a plane and curved face, said division-plates being assembled along their plane faces, the curved faces be ing gradually curved from the front of the Wedge and tapering gradually toward the rear edge of the Wedge, each curved face having a supporting-leg conforming in shape to the ledge adapted to support the same, the rear edges of the plates being in line with the rear terminal Wall of the ledge, the parts operatin g as and for the purpose set forth.
l. In ashiugle die or mold, a suitable block,
means for securing the same to the hopper of a clay-feeding machine, an inner concave forwardly-convergin g surface on each side 0f the center lof the block, a pyramidal ridge having plane faces separating the concave surfaces from each other, the apex of the pyramid being located adjacent to the middle of the rear edge of the block, and a plane retarding-surface extending foiwvardlyfrom the base of the pyramid, the bases of the faces of the pyramid forming the rear forwardly-inclined sides of the retarding-surface, substantially as set forth.
In testimony whereof We affix our signatures in presence of two Witnesses.
HENRY E. DAWSON. VILLIAM Il. NOYE.
ALFRED A. MATHEY, EMrL STAREK.