|Publication number||US111604 A|
|Publication date||Feb 7, 1871|
|Publication number||US 111604 A, US 111604A, US-A-111604, US111604 A, US111604A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (30), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
dni-ted gister @sind @time Leners Paantno. 111,604, daad February 7, 1871.
IMPROVEMENT IN SAND-SlFTERS.
The :schedule referred to in these Letters Patent and making' part of the same.
Beit known'that I, WILLIMI BAILEY, of Friend-- ship, in the county of Allegany and State of New York, have invented certain Improvements in Sand-- Sifters; and I do hereby declare the following to be a full, clear, and exact description of the' same, reference being had to the accompanying drawing, in, which- Figure l represents a perspective view of the screen, and' Figure 2,a longitudinal section of the saine, with the conveyer imposition.
Similar letters of reference indicate like parts.
This invention relates to that class, of screens or siftels employedfor sifting sand for building or other lpui ses; and consists, first, in the adaptation of the revo ving screen tol such purpose as hereinafter described; and, secondly, in the employment of a boring and conveyinginstrument in connection with the screen, for the pnrposeof supplying sand to the latter.
' I am aware that revolving wire screens have long been employed ibr-sifting flour, cleaning grain, coffee, and other substances, and perhaps for screening sand hence my invention, `so far as it relates4 to the sifting instrument, does not consist in the use of a revolving wire screen, butin the construction herein described, which adapts such screens to the purpose referred to, whether used with or without the conveyer.
In the drawing-- A is the frame, and
Bis the body of the wire screen, supported upon the frame in a slightly-inclined position, and adapted to be rotated on its longer axis by a crank, '0.
The wire cylinder terminates at its rear or lower end in a hoop, D, across which extends a crossbar, d, to the center oi' which the crank-shaft is attached.
The hoop is thin, so asnot to'obstrnct the es cape of the coarse gravel, stones, Snc., which are discharged from that end of the cylinder upon an inclined chute, F.
Now, the revolving wire screens heretofore used have been hung at both ends upon a central journal projecting from a cross-bar or bars that extend across the ends of the cylinder. As thus constructed such screens were not adapted for convenient use as sandscreens, for the reason thatin shoveling the sand into them the cross-bars are in the way, preventing the shovel from entering the'end of the cylinder, and causing about half of each shovelful to be spilled upouthe ground. To remedy this l-.support the front o r upper end of the cylinder by means of an open ringfli, having a funnel-shaped mouth, which readily admits the shovel; and to save expense of construction I groove the outside of the ring, or fasten upon its inner enda strap, R', which renders the construction equivalent toA grooving the outer surface of the ring, and thereby adapt the ring to answer as a bearing or hollow journal, the frame at this end being fashioned as a j ournal-boxto receive and support it.
The Vshape of the (frame, otherwise than at the bearings, is of'little consequence. It may be adapted to stand upon the ground, or in any position where needed, or it may, if preferred, be arranged transversely of a cart or wagon, and thus be moved from place to place, and used without removing it from the cart, the workmen shoveling the sand into' the cylinder at one side of the vehicle, and the machine discharging the coarse sand, stones, 85e., at the other side, and sifting the iine sand into the cfartbody.
The second feature of my invention consists inemploying, in combination with a revolving' sand-screen, an instrument adapted to be rotated by the crank O at the same time with the screen, for the purpose ot' excavating the sand and conveying it to the cylinder.. Such instrument consists of an auger, M, so constructed that the stem can bc attached to the cross-bard by means of pin, m, or otherwise, as shown in fig. 2, the cutting end of -the auger projecting from the open mouth of the cylinder, and the greater' part of the screw being inclosed in a tube, E, as shown.
For the purpose of centering the auger the tube maybe provided with longitudinal'iianges c c, closely iitting into the vring I The cylinder, tube, and auger. rotate -together, thc tube either being attached to the auger so as to receive motion' from it, or being loose upon thc auger and adapted to be moved by the rotation ofthe ring R.
The object of thc auger is to bore into the sand bank and excavate,y the material, which will be con-V veyed into the screen by means of the tube E.
As thus constructed the instrument can be placed nip-against the bank, and by the single motion ot' turnf ing the crank C the sand will be rapidly and continu-v ously excavated, conveyed to the screen, sifted, and separated from the coarse gravel.
The boring and conveying device may at any time. be detached and removed, andl the screen used without it. NVhen thus detached it will frequently be uscful for excavating or loosening up, the sand, which is afterward-to be shoveled into the screen.
Having thus-described my invention,
What I claim as new, and desire to secure by Letters Patent, is
l. In aA sand-sifter having a suitable supportingfrarne and a revolving wire-screen rotated by a crank, C, the described construction of the front end of the screen, consisting essentially of the ring or hollow journal 1t, made large enough to admit the blade of a. common spade, and having its mouth entirely un` 3. The combination ofthe open-mouthed revolving obstructed, so that the sand can be shoveled directly screen with the auger and conveyer M- E, substaninto it without the'aid of zt feed-spout o r conductor, tially as described and for the. purposes set forth. substantially as described for the purpose specied. WILLIAM BAILEY.
2.- The combined sand-:Luger and conveyer, M E, constructed as described, and ladapted to'be operated Witnesses: either with or without the revolving screen, as herein WALTER GRANDALL, set forth. WM. H. KING.
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