US64976A - Improved window-sash weight - Google Patents

Description

@uit-rh tstrs sttnt @frn HAYWARD A. HARVEY, OF NEW YORK, N. Y.-

' Lenen Parent No. 64,976, daad May 21, 1867.

turnover) WINDOW-sass WEIGHT.

'IO ALL WHOM IT MA Y CONCERN:

Be it known that I, HAYWARD A.l HARVEY, of the city, county, and State of New York, have invented a new and useful Sash-Weight; and that the following, taken in connection with the drawings, is a full,elear, and exact description thereof. In the drawingsf Figure 1 is an elevation of, and

Figure 2, a vertical sectionahrough my improved sash-weight. I

It has been customary for many years to use sash-weights of cast iron, whichv are usually rough on theirl exterior and apt to cut or abrade the sash-cords, and are, moreover, costly. Weights for other purposes have also been made by enclosing shot, fragments of iron, stu-ne, Kto., in boxes of wood, or cases, such as bottlesor jugs of earthenware, and lately sash-weights have been made of blast-furnace, slag runin a molten state into. metallic cylinders. The latter class Aof' weights are deficient in specific gravity, and must therefore be made of increased size, but are improvements on the old cast-iron weight 'inso faras smoothness of outside is concerned. My weight is of greaterV specific gravity than the weights f the latter class, and is ofl comparatively small cost when compared with the castfiron Weights, while at the same time it has a smooth surface. Its ,manuy facture on a large scale will, vmoreover,lutililze large quantities of a material at present of small value.

My weight-is composed of au exterior ease of metal (sheet iron by preference) rammed full of broken or powdered iron ore, (primitive ore by preference, such as is found in the Lake Champlain region,) with the frnter stices filled and the particles cemented together with plaster of Paris,`Roman or other cement or cementingsubstance, so as to form a species of concrete, the base of which is )a heavyore. This ore is often foundontaining either sulphur, phosphorus, or other foreign matters,in such quantities that it is valueless for metallurgie processes, and often contains as high as ninety per cent. of iron, and is, therefore, nearly as heavy as iron itself, and it is this kind of ore that I prefer to use. l

I prefer to make the case axof sheet iron with a conical or pyramidal top, and attach thereto or insertv therein an eye, h. The iron ore is then to be broken or ground up until itis of the size of small shot, no particles being,l

larger vthan will conveniently enter the' caso, and rammed i'nto the case from the bottom. The inter'stices between the particles of ore are then Vto be filled with cement in a Huid state. Ifthe weight be n long one I first ram in a quantity lof'v ore, partially filling the case, then podr in A cement, then ram again, and so on in sucession till the ease is full.v -Another .method of manufacture that Ihave essayed with success is to make the concrete rst and then pour it into the case 'and ram it, if desired. The bottom of the case k is then put on and secured, and the weight is finished.

l Where heavy ores, such as lead ores, are cheap, I intend to use them asthe base of the concrete in place of and as an equivalent for iron ore, and I find'by experience that the case really needs no bottom, azsirnple turning or bending inwards of the bottompedge, .so as to form an irregular or regular flange, serving to hold the concrete within the case.

Other modes of manufacture may be adopted, but the weight when finished must be a metallic case filled with a concrete of ore' and cement. The finished weight will be of small cost when compared with cast iron of greater specific gravity than compound weights heretofore made, and will have a smooth surface.

I claim as of my own invention, the new article of manufacture herein described, namely- A sash-weight composed' of aA metallic case filled with iron ore and cement, mnnuf'actured'as herein sei; forth.

H. A. HARVEY.

Witnesses: -f n GEO. W. Peruviaanse;- F.' I. DoMINroK.

Images