US967042A - Centrifugal disintegrator. - Google Patents

Description

J. DGDBNV B..V o. CHILD. GENTRIEUGAL DISINTEGRATOR. APPLICATION FILBDJIAX 7,71910.v

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J. `OGDBIHL R. G. CHILD.'

OBNTRIFUGAL DISINTEGRATOR.

APPLICATION FILED MAY 7, 1910.

Patented Aug. 9, 1.910.

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JOSEPH. OGDEN, or sALroRD, Atm `ninisnliuli cAnLyLE cieirrn,` or LoNDoimnNGLAND, Assreivons To sArD ROBERT CARLYLE CHILD, or LONDON,` ENGLAND.

CENTRIFUGAL Dfsriv'rEGRAroR.

Application filed May 7, 1910. Serial N o. 5159,912.

To all whom it may concern:

Be it known that we, JOSEPH OGDEN and ROBERT CARLYLE CHILD, subjects of the King of Great Britain and Ireland, residing, respectively, at Parkside avenue, Leices ter Road, Salford, Lancashire, and 11 Queen Victoria street, London, England, have invented new and useful Improvements in Centrifugal Dsintegrators, of which the following is a specification.

This invention relates to that class of disintegrators in which disks are used provided with projecting pegs or studs so that in operation the ring of pegs on one disk r0- tates between the ring of pegs on the opposite disk, and has for its object the provision of means whereby the difficulties with re-` gard to the packing of the material in the disintegrator are overcome and also the presence of dust between the working parts is avoided in order that frictional resistance may be reduced to a minimum, and unnecessary wear and tear of the rotating parts be avoided.

ln disintegrators of the above description it has been found that the material under treatment collects on those parts of the moving and stationary disks which are situated immediately opposite the ends of the projecting pins and causes not only a high frictional resistance but interferes with the travel of t-he material outward through the successive rings of pegs. Further that the material is liable to pack in the delivery chamber and to interfere materially with the function of the machine and further where the revolving disks haveto move in close proximity to the casing great difficulty is experienced owing to the higher pressure of the atmosphere within the disintegrator when in operation compared with the outside in preventing the fine material from getting through the space between the periphery of the disk and the casing and coming in contact with the bearings and journais for supporting the rotating disk. The disintegrating efficiency of this class of machine depends upon the velocity transmitted to the particles to be dealt with hence a high rate of revolution is necessary, say a peripheral velocity of disk of from 15,000 to 20,000 feet per minute and mechanical difficulties have arisen in obtaining such velocity from ordinary sources of power. All these diiiiculties are entirely overcome by our invention.

Specification of Letters Patent.

Patented Aug. 9, 1910.

In order that this invention may be the better understood, we will now proceed to describe the same, reference being had to the accompanying drawings.

Like letters refer to like parts in the various figures.

Figure l is a part sectional elevation of a machinev constructed in accordance with our invention. Fig. 2 is a sectional elevation of the upper part of the machine showing the stationary and revolving disks, and the method of mounting the latter. Fig. 3 is a plan of the machine showing the delivery casing of volute form. Fig. i is a detail view showing the modified arrangement of pins. ]Tig. 5 showstwo views of the modified pins.

` Upon a suitable frame a a gear box b is mounted or is constructed integral therewith, such gear box being of entirely closed character so as to contain a bath of oil.

Within the boX b a vertical shaft c is mounted in ball bearings cl and footste bearings d1. This shaft c is provided witi worm gearing c into which gears a worm wheel f mounted on the first motion shaft g, the said shaft being driven from any suitable source of power by the coupling g1 mounted on the external end thereof 0r by any other'equivalent and known means.

On the upper part of the shaft c and external to the box b is mounted a rotating disk 7L having a series of pins h1 extending upwardly. Immediately over the revolving disk 7L is a cover c' having pins l interspaced between the pins h1 on the revolving disk 7L.

The feeding hopper 7c is disposed in the center of the cover i while the delivery of the material takes place from the disk into the delivery chamber Z formed of volute shape, similar to the casing of a centrifugal pump; the final delivery takes place through the orifice Z1 at one side of the chamber Z.

The disks I1, and c' may be initially formed with grooves 7a2 and 2 or such grooves may become formed during the working of the machine by the attrition of the material. In order to prevent the accumulation of material in these grooves and to continuously clear the same, yone or more of the pins h1 and l in each ring of pins is adapted to project into the grooves so that the ends of such pins move in close proximity to the bottom surface of the said grooves. The end of each of the said pins l or 71,1 is

formed with a scraping or cutting edge m adapted to readily disturb the layer of material which may lie in the particular groove in which it works.

Diliculties have arisen with regard to the access of dust to the upper ball bearings of machines of this type, we therefore to avoid such ditliculties provide on the underside of the disk z, means, such as a series of blades or projections n which will when the disk 71, is in rotation produce an air current in an outward direction in a similar manner to a fan.

The space below the disk la, is provided with means such as a pipe 0 through which air can be taken from the exterior of the machine and from a source uncontaminated by dust or other undesirable matter, such air being drawn into 'the machine by the action of the blades n and being delivered from the discharge orifice Z1 so as to continuously carry away from the disintegrator, material discharged from the chamber l. At the same time the direction `of the current of air below the disk z, prevents any of the ground material from having access to the ball bearings l or d1. In this Way the atmosphere around the bearings is maintained absolutely free from dust and at the same time any clogging of the material between the rotating disk /L` and the stationary casing Z is entirely avoided.

Claims:

1. In a disintegrating machine, stationary and revolving disks provided with grooves, pins projecting from said disks arranged in rings and some of said pins in each ring being longer than the other pins in said ring so as to project into the grooves.

2. A disintegrating machine comprising stationary and revolving disks, and pins arranged in rings projecting from said disks the pins on the respective disks being interspaced relatively to one another, and some of the pins of each ring being longer than the others in said ring and said long pins having cutting edges.

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

JOSEPH OGDEN. ROBERT CARLYLE CHILD.

Witnesses RICHARD A. HOFFMANN, CHARLES J. R. BULLoUGH.

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