US390913A - simon - Google Patents

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US390913A US390913DA US390913A US 390913 A US390913 A US 390913A US 390913D A US390913D A US 390913DA US 390913 A US390913 A US 390913A
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    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters


3 Sheets-Shet 1.

( No Model.)



No. 390,913. Patented Oct. 9, 1 88.

N. PETERS, Hula-Lithographer. Washinglon. uc,

3 Sheets-Sheet 2.

(No Model.)



No. 390,913. Patented 0013.9, 1888,

N Pnzn, Pnowmm hu. Washington. D. c.

(No Model.) 3 SheetsSheet 3.



No. 390,913. Patented Oct. 9, 1888.




SPECIFICATION forming part of Letters Patent No. 390,913, dated October 9, 1888.

Application filed December 22.1887. Serial No. 258,111.

(No model.) Patented in England September 2,1886, No. 11,193.

To all whom it may concern.-

Be it known that I, HENRY SIMON, a citizen of England, residing at Mount Street, Manchester, in the county of Lancaster, England, have invented new and useful Improvements in Sieves,(for which I have obtained a patent in Great Britain, dated September 2, 1886, No. 11,193, and made applicatiou'for a patent dated October 13, 1887, No. 13,914,) of which the following is a specification.

This invention has for its object to provide a novel sieve; and it consists in the features of construction and combination of devices hereinafter described and claimed, reference being made to the accompanying drawings, in whieh Figure 1 shows in its upper part a longitudi nal section and in its lowerpart aside view, the outer side casing being supposed to be re 2o moved, illustrating my invention in connection with two parallel sieve-frames. Fig. 2 shows in its upper part a transverse section of the' same and in its lower part an end view, the outer end casing being supposed to be removed. Fig. 3 is a vertical section, to an enlarged scale, of one of the feeding mouths and tubes ofthe sieves. Fig. 4 is a vertical section of one of the delivery mouths and tubes. Fig. 5 is a plan, partly iii-section, of one of the crank bushes or bearings. section, and Fig. 7 is a plan,ot' one of the suspension-joints of the sieves; and Fig. 8, a detail face view of the distributingtrongh at the receiving end of the sieve.

Referring first to Figs. I and 2, within a casing, A, are suspended, each by rods B, giv-' ing freedom ofswing in all directions, (as will hereinafter be described with reference to Figs. 6 and 7,) two parallel sieve-frames, CO, the one above the other. At the ends of the casing are journaled two vertical shafts, D D, driven in the same direction at the same speed. This may be done from a horizontal shaft, F,worked from any suitable motor; or, either of the two vertical shafts being driven, the other may be driven from it by a belt or by rods coupling cranks on the two shafts. On each of the two shafts D are two cranks, the lower crank being formed opposite the upper crank on each shaft, but the pair of cranks at the same level on the two shafts being set parallel to each Fig. 6 is a vertical other. Each crank at the one end of the easing is connected by a bushed bracket, G, to one of the sieve frames, and at the other end of the casing each crank is connected to one of the sieve-frames by a peculiar self-accommodating bearing, which will hereinafter be more fully described with reference to Fig. 5. The sieve S, of wire-gauze, perforated metal, porous fabric,orany material such as is ordinarily used forsifting,isfixedonaninclinewithintheframe C, which is covered partly, or, when fine material is dealt with, is wholly coveredover, and under the sieve is a bottom, which may be of sheet metal, slopingto a deliverytube, H. At thefeedingorleft hand end of the sieve-frame 0 there is formed a trough, I, into which opens the feeding-tube J. From the trough I there are openings at the upper part of its side next the sieve, each opening provided with an independent adjustable gate or door, K, which can be shifted up or down and set by a thumbnut higher or lower, thus adjusting the feed from the trough I to the sieve, so as to give equal distribution of the material to be sifted. \Vhile the finer particles that pass through the meshes of the sieve are collected on the inclined bottom and issue by the delivery tube H, the coarser material, which does not pass through the'meshes,collects in the trough Lat the lower (right hand) end and passes away by an outlet-tubesimilar to H. Each sieve may be divided by a. longitudinal partition or a transverse partition, M, (shown in dotted lines,) so as to convert it into twoindependent sieves; but in tliat case each half has to be pro vided with feed and delivery appliances such as I have described.

The metal or other rigid and stationary feeding-tube J, Fig. 3, has fitted on it a flanged ring, j, which rests and slides on the coverj u of the sieve frame, the tube J itself projecting through the holej' in the cover, which hole is large enough to admit of all the movement of the sieve without its sides encountering the tube J. The flanged ring j is made of such width that in all positions of the sieve-frame it overlaps the edges of the hole. In like manner the rigid delivery-tube H, Fig. 4, has fitted on it a flanged ring, h, which rests and too slides on the mouth of the dischargeduct h. The flanged ringsj and. h at the feed and delivery apertures, respectively, by always covering the orifices, which are made large enough to permit the sieve movement, effectually prevent escape of dust.

At the one end (the lefthand) each sieveframe is connected to the crank by an ordinary bracket, G, with a bushed eye en'ibracing the crank; but at the other end (the right) the bracket and bush are arranged as shown in Fig. 5 to admit of a little rocking and sliding movementin case of want of parallelism of the two vertical crank-shafts or inaccuracy in the alignment or throw of the two cranks that work the one sieve-frame.

Referring to Fig. 5, D is the crank fitted to revolve in the hushed eye of a boss, (I, which is pivoted on two set-screws, d, as trunnions. The slide-plates (Z are located directly opposite each other on guides d", formed on the inher sides of two arms, 6, projecting from a bracket, (1, which is secured tothe discharging end of the sieve-frame O. The arms (1 are each provided with an elongated slot, al in which is adapted to slide to and from the bracket d a tubular block, d", through which the set-screw d loosely passes. The slide plates d" have screw-threaded orifices through which the set-screws (1 pass, and are locked by nuts (1, the inner ends of the set screws beingjournaled in seats in the hushed boss (I, in which the crank of the shaft D is journalcd, all in such ,manner that the revolution of the crank reeiprocates the bracket and the sieveframe connected therewith. The bushed eye (1, being solely supported by the ends of the set-screws d, is free to rotate thereupon in the movements of the sievel'rame. The object of this construction is to allow for errors of alignment or eccentricity of the vertical shafts D and their cranks. As the hushed eye or hearing (2 encircles the crank and is free to rock or rotate on the ends of the set screws cl, which can move to and from the bracket d, if the crank at the oneend of the sieve'frame should have a little more or less throw or should not be quite parallel to the crank at the other end, the hushed eye or hearing can rock or rotate and slide sufficiently to allow for the error.

The rods 13, by which the sieve-frames are suspended, are mounted as shown in Figs. 6

and7. The rod B is formed with abolthead, and is passed through a metal washer. b, a pad, I), of caoutchonc or equivalent elastic mate rial, and a plate if, having on its lower side a hemispherical boss which rests in a corresponding hollow in a hearing, I), that is held in position between three ribs projecting from a plate, I). The plate b, which is fixed on the stationary framing, has a hole through it for passage of the rod B, and a notch extends from this hole to the end of the plate, by which the rod can be introduced. The lower end of each rod 13 is connected to thesieve-frame by a joint, which is the same as that shown in Fig. 6 inverted, the plate b being in this case fixed to the sieve-frame.

Having thus described'the nature of my invention and the best means that I know of for carrying the same out in practice, I claim 1. The combination, with the frame A, sievel'rames C, and rotary crank-shafts D,of the vertical suspendingrods B, yielding spherical bearings at the upper and lower ends of the rods, the bushed brackets G, connecting one end of the sieve-frames with one crank-shaft, and the sliding and pivoted eyes connecting the opposite ends of the sieve'frames with the other crank-shaft, substantially as described.

2. Thecombination, with the main frame A, the rotary crank-shafts D, and sieve-franues C, operated thereby, of the suspending-rods B, having at each end the washer b, cushion I), plate providedwith a hemispherical boss, and the supported bearing I), having a seat receiving said boss, substantially as described.

3. The combination, with the main frame A, sieve-frame O, and rotary crank-shafts D, of the bracket (1, secured to one end of the sieveframe and having the slotted arms d, the sl ides (6. supported by said arms, the set-screws d, passing through the arms and slides, and the rocking'eyed boss (I, encircling a crank of one of the crankshafts and pivoted on the inner ends ofthesetserews to rock and thereby accommodate errors of alignment or eccen- 9 trieity of the crank-shafts, substantially as described.

In testimony whereofI have signed my name to this specilicati0n,in the presence oftwo subscribing witnesses, this 29th day of November, A. D. 1887.



J osnr 1-1 INGLEB Y, XV. Berteottna.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356214A (en) * 1964-06-08 1967-12-05 Louis W Johnson Rotary screening device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356214A (en) * 1964-06-08 1967-12-05 Louis W Johnson Rotary screening device

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