US1585455A - Mold for concrete orchard heaters - Google Patents

Description

J. P. N. WOOD MOLD FOR CONCRETE ORCHARD HEATERS Filed Oct. 21, 1924 g s s t 1 May 18 ,1926.

J. P. N. WOOD MOLD FOR CONCRETE ORCHARD HEATERS Filed Oct. 21, 1924 2 Sheets-Sheet 2 TWIN T I mwm Patented May 18, 1926.

.TQHN' PAUL NICHOLAS V7003), OF DUNDEE, FLORIDA.

MOLD FOR CONCRETE ORCHARD HEATERS.

Application filed Getober 21, 1924. Serial No. 744,924.

The object of the invention is to provide a heater of the particular form to most effectively radiate the heat of a given quantity of fuel so that the maximum eil ect may be obtained. as in the heating of orchards and the like to protect the trees from frost and chilling blasts; to provide a heater readily constructable from a plastic material so that it may be built at the point of use and constitute a comparatively small loss in the event of breakage; and to provide a cast in which the most dispatch.

Y'Vith these objects in view, the invention consists in a construction and combination of parts of which a preferred embodiment i illustrated in the accompanying drawings, wherein Figure l is a side elevational view of the heater.

Figure 2 is a plan view.

Figure 3 is a section on the line 3-3 of Figure 1.

Figure 4- is a side elevational View of the mold.

Figure 5 is a horizontal sectional view on the plane indicated by the line 5-5 of Figure Figure 6 is a vertical sectional View on the plane indicated by the line 66 of Figure 4.

Figure 7 is a perspective view of one of the elements of the mold which defines the lower draft apertures of the heater.

Figure 8 is an elevational view, partly broken away, of the heater cover.

Figure 9 is a detail sectional view of the oval form defining the lateral craft openings in the heater.

The heater 1, which is adapted for casting either in Portland cement, clay or like moldable material, is of inverted frusto-conical form provided at its upper or larger side with the handle elements 2 consisting of angular metal pieces of which one arm is embedded in the material of the heater in the casting of the latter. Preferably two handles are provided at diametrically opposite sides but in order that the heater may readily sit in upright position, the feet- 3 are provided. There are of these and they are likewise formed of angular metal pieces of which one arm of each is embedded in the material of the 55 heater.

Intermediate between the feet 3, draft heater may be made with the preferably three openings 4t are provided below the plane of a preferably cast iron grate 5 frictionally bearing on the interior slanting wall of the heater and of a diameter suflicient to space it above the plane of the feet 3 and thus pro vide an air chamber below the g ate into which air is admitted through the openings 4. Likewise draft openings 6 are provided in the side wall and extend a substantial distance in the direction of the height of the heater.

In the use of the heater, the fuel is de posited in the latter on top of the grate. 5 and having been properly ignited is kept burning by air entering through the perforations or openings in the grate and through the slotted openings 6 in the side wall and the heater being of frusto-c0nical form, the lateral distribution of the heat of the fuel is more readily effected than were it of cylindrical formation. Also the conical form provides for a more even draft, making for the slower consumption of the fuel. Made in cement or fire clay, it is practically indestructible and will withstand the elements indefinitely but should it be broken, it is susceptible of quick reproduction in a properly constituted mold.

When not in use, it is designed to cover it at the top and to this end a sheet metal covering 7 is provided having a peripheral flange 8 in which at diametrically opposite sides the bayonet slots 9 are formed, the bayonet slots engaging the handles and serving, together with them, a means for interlocking the cover in place so that it may not be blown off during wind storms and may thus protect the fue fr in dampness when the heater is not in use, the handles constituting means for transporting the heater from place to place.

In order to mold the heater, an interior core 10, preferably of metal, is provided, this core conforming to the interior contour of the heater, and in the casting process seating within the outer form consisting of the complemental elements 11 formed on their edges with rolled portions 12, those on the one element standing between those on the other element to provide a series of intercurrent rolled barrels engageable by rods 14; inserted through them and provided at their upper ends with eyes 15 constituting means by which they may be withdrawn and inserted. At the lower edges, the elements 11 are recessed, as indicated at 16, to provide clearance spaces for the feet 3 inthe casting process and at the upper edges -ith recesses 17 to provide similar clearance spaces for the handles 2.

Radial arch plates 18 are disposedat the bottom between the core and the forming elements ll to define the spaces which result in the draft openings 4 in the finished heater. Likewise to provide for the lateral draftopenings, the oval forms 19 are employed and disposed between the core and the forming elements in the casting or. forming' process.

The invention having been described, what is claimed as new and useful is:

A. i nold. "for casting an inverted frustoconical bowl, the same consisting o'i an inverted metro-conical cor-re, ,an exterior molding member disposed in. surrounding relation to the core and consisting of transversely semicircular elements of which each on its opposite edges is provided with rolled portions constituting barrels arranged in intercurrent relation with corresponding barrels on the opposite element, rods insertahle through said barrels to hold said elements in engaged relation, radial arch plates disposed between the core and the exterior molding member adjacent the bottom oi the core and molding member, and oval forms disposed between the core and molding member and at an intermediate point in the height of the latter said arch plates and forms defining lateral openings inthe molded product.

In testimony whereof he affixes his signatore JQHN PAUL NICHOLAS 7001),.

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