US554802A

US554802A - thomson

Info

Publication number: US554802A
Authority: US
Publication date: 1896-02-18
Anticipated expiration: 1913-02-18

Description

(No Model.) 2 Sheets-Sheet 1.

- P. W. THOMSON.

MACHINE FOB. PULVERIZING QUARTZ. No. 554,802. Patented Feb. 18, 1896.

(N0 Model.) Y 1 I. W. THOMSON.

2 Sheets-Sheet 2.

MACHINE FOR PULVERIZING QUARTZ. No. 554,802. Patented Feb. 18, 1896.

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MACHINE FOR PULVERIZING QUARTZ.

SPECIFICATION forming part of Letters Patent No. 554,802, dated February 18, 1896. Application filed March 28, 1895. Serial'No. 543,496. (No model.)

To all whom, it may concern.-

Be it known that I, FREDRIOKWILLIAM THOMSON, a subject of the Queen of Great Britain,residing at Fort WVilliam, in the Thunder Bay District and Province of Ontario, Canada, have invented a new and useful Machine for Pulverizing Quartz, of which the following is a specification.

This invention relates to an improvement in machines for pulverizing quartz, and the primary object of the invention is to construct it in such manner that the different parts of the machine shall be capable of being easily separated and removed, renewed and reassembled, which shall be simple in construction, durable in practice, and thoroughly effective in operation.

My invention consists in the combination, with a hollow cylindrical centrally-arranged support, of a series of rolls each independently mounted within and between two parallel rings or hoops arranged on opposite sides of said central support, a hollow drum surrounding said series of rolls and the hollow central support, a detachable circular cover for closing one side of said drum, a circular screen arranged on the opposite side of the drum, and a central supportingshaft for steadying the drum, and in certain features and details of construction and arrangement of parts hereinafter fully described, and pointed out in the claims;

In the accompanying drawings, Figure l is a perspective view of my improved machine for pulverizing quartz, &c., with the hood or splasher partly broken away to show the interior construction. Fig. 2 is a similarview of the hollow cylindrical central support, the circular seriesof rolls surrounding the same, and the circular frames for holding, guiding, and controlling the rolls. Fig. 3 is a vertical transverse section through the machine, showing the relation of parts and illustrating the manner in which the wearing-shoes are held in place, also showing the manner in which the drum is supported. Fig. 4 is a vertical longitudinal section through the same;

Similar numerals of reference indicate corresponding parts in the several figures of the drawings.

Referring to the drawings, 1 indicates the hollow cylindrical centrally-arranged support v of my improved quartz-pulverizer. The central support 1 is rigidly attached to a pedestal or post 2, arranged exteriorly of the machine. The upper end of the pedestal or post 2 is bifurcated or provided with two arms 3 3, from which stout rods or bars extend into the interior of the machine, connecting with and supporting the hollow central support 1 in fixed position. The pedestal 2 is provided at its base with flanges 4, adapting the same to be secured firmly to and upon a suitable platform. Between the arms 3 3 at the upper end of the pedestal 2 a concavity or rest 5 is provided for the reception of the main supporting-shaft, hereinafter described.

6 6 indicate two circular frames or rings surrounding the central support 1 and located approximately in the plane of the side faces 0r edges of said central support 1.

7 7 indicate a series of rolls arranged in a circle around the cylinder 1. These rolls 7 are mounted on and adapted to turn around non-revoluble pins orbolts 8 passing through the circular frames 6 6, said bolts being pro vided with countersunk heads at one end and at the opposite end being perforated and adapted to receive a split pin, cotter, or wedge 10, either with or without a washer 9, as preferred, and as indicated in Fig. 3.

11 indicates'a drum surrounding the rolls 7 and adapted to revolve upon and receive its support from said rolls, the rolls in turn being supported on the central cylinder 1. The drum 11 is provided on one side with a removable disk secured at its outer periphery tothe side edge of the periphery of the drum 11 by means of tap-screws 13, passingthrough perforations in said disk 12, and entering threaded sockets in the drum. The disk 12 is provided with a central hub and perforation 14, by means of which said disk or cover is keyed to a shaft 15 at one end, said shaft passing centrally through the machine and having a bearing at its opposite end in a pedestal 16 arranged on the same side of the machine as the pedestal 2. On either side of the bearing 17 in which said shaft is journaled, collars 18 surround said shaft, being secured thereto by means of a set-screw 19 in each collar. Intermediate its ends said shaft 15 is adapted to rest within the fork of the pedestal 2 betweenthe arms 3 3 thereof,

and just above the base of the concavity 5, and said shaft by means of its connection with the disk or cover 12 supports the drum 11 against lateral movement. The base of the pedestal 16 is formed in one piece with the base i of the pedestal 2, both pedestals and their common base being preferably cast together.

The side of the drum 11. opposite to that on which disk 12 is located is left open with the exception of an inwardly-extending flange 20, formed integrally with the drum 1], and 11 rojeetin g inwardly a few inches from the inner periphery of said drum.

21 indicates a circular screen, such as is used in stamp-mills, attached at its outer periphery to the flange 20, and having a large central opening through which the quartz or other material to be pulverized isintroduced into the machine. A ilange 22 formed integrally with the flange 90 extends outwardly from the latter and is given an outward flare, as indicated in Fig. 3. A circular hood or splasher 23 is located just outside of the annular flange 22, and is bent inwardly at its outer periphery, as shown at 2 L, to form an inwardly-extending flange, which is adapted to surround and partially cover the annular flange 22. The hood or splasher 23 is provided with a central aperture 25, and is supported in fixed position bymeans of suitable straps or bars 26 striding the stationary rods which support the stationary hollow cylinder 1, though said hood or splasher maybe supported and held in place in any convenient or desired manner.

27 indicates an annular shoe of slightly less diameter externally than the internal diameter of the drum 1], being held in place by means of suitable wedges 28. The shoe 27 is made of sullicient width to extend practically across the inner periphery of the drum 11 from the inner face of the flange 20 to the corresponding faee of the disk or cover 12 and constitutes the main grinding-shoe of the ma chine. A similar shoe 29 of a smaller diameter surrounds the stationary central hollow cylinder 1, and is also secured in place thereon by means of wedges 30. \Vhen the shoes or wearing-

plates

27 and 29 become worn, they can be removed by taking off the cover or disk 12, and a new set of shoes may thus be applied when desired or found necessary. In like manner the rolls 7 may be removed by withdrawing the wedges or cotters 10, washers .l, and one of the circular frames or plates (3, and a new set of rollsbe substituted when the first set of rolls is too badly worn to be of further use.

31 indicates a hopper or chute into which the quartz or other material is placed, the inner end or mouth of said hopper or chute pro j ecting within the hood or splasher 23, and the screen 21 for delivering the material to be pulverized to the interior of the hollow supporting-cylinder 1. The quartz or other material falls through vertically-aligned apertures 31, in the bottom of the supporting-cylinder 1 and its shoe to the bottom of the drum 11 and upon the shoe 27, and when said drum is revolved by means of a belt 332 surrounding the drum, from any suitable motor, the quartz will be carried around by said drum passing beneath the rolls or between said rolls and the shoe 37, thereby crushing and pulverizin the same. The drum is ordinarily revolved at high speed and the material is carried upward and around by the action of the revolving-drum and rolls and finely pulverized and ground between the same. \Vhen the drum revolves slowly the material as it reaches the top of the machine falls between the rolls and upon the shoe 2!), upon which it is further pulverized in its downward passage to the bottom of the machine, water being introduced to the interior of the drum by means of a pipe or hose. (Not shown.) \Vhen the material is pulverized to a sui'lieient extent-,it is carried by said water through the screen 21 and escaping between the annular flange 22 and the curved or hooked periphery 24: of the hood or splasher falls into a suitable trough or conveyer 33, by which it is conveyed to the copper plates or concentrator.

The hopper 231 may be supported on the st :1- tionary-frame in any convenient manner, and rotary motion may be communicated to the drum 11 in any usual or desired manner. The rolls are made from cast-iron and the central perforations therein are formed in the process of casting. The bolts 8, which hold. said. rolls in place, are made eonsiderabl y smaller in diameter than the internal diameter of -the here or perforation in the rolls. The pins 8 thus serve to keep the rolls apart and in their proper position, at the same time adapting them to rise and fall and accommodate themselves to the material. OjOlittOtl upon and to compensate for wear in the shoes 27 and 30 or in the rolls themselves. \Vhen the shoes and rolls become too badly worn or too greatly reduced in size, they may be removed from the machine by taking oil the disk or cover 12. A new set of shoes and rolls may now be introduced and the disk or cover 12 replaced, when the machine is again ready for operation.

Various changes in the form, )roportion, and the minor details of construction maybe resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim is 1. I11 a machine for pulverizing quartz, astationary cylinder, a series of rolls traveling around said stationary cylinder, a suitable frame for regulating the distance between the rolls and controllin g their movements, and a drum surround ing said rolls, and means substantially as described for revolving said drum.

2. Ina machine for pulverizing quartz, a stationary hollow cylindrical support, a series of rolls traveling around the same and held in place by means of a suitable revolving frame, a revolving drum surrounding said rolls, and a centrally-arranged shaft for said drum, said shaft passing through said hollow cylindrical support and having the drum keyed thereto, substantially as described.

3, In a machine for pulverizing quartz, a stationary hollow cylindrical support, a series of rolls traveling around the same, and supported thereby, an annular frame in which said rolls are mounted, a revolving drum surrounding said rolls and stationary support, and a centrally-arranged shaft keyed within said drum, and mounted in bearings upon one side of the machine, and means substantially as described for preventing endwise movement of said shaft, for the purpose and substantially as described.

4. In a machine for pulverizing quartz, a stationary hollow cylindrical support, a series of rolls traveling around the same, an annular frame for controlling the relative position of said rolls, and a revolving drum surrounding and resting upon and supported by said rolls, in combination with a detachable disk or cover secured to said drum for giving access to the interior of the machine, substantially as described.

annular frame for holding said rolls in place, a rotary drum surrounding said rolls, an internally-arranged shoe secured to said drum, and means substantially as described for holding said drum in position laterally, as specified.

7. In a machine for pulverizing quartz, a stationary hollow cylindrical support rigidly connected with and in combination with a supporting pedestal, a series of rolls traveling around said hollow cylindrical support, a rotary drum surrounding said rolls, a centrally-perforated end disk secured upon one side of said drum, a centrally-arranged shaft passing through said hollow cylindrical support, and a pedestal for supporting said shaft at one end, the opposite end of said shaft being keyed to the end disk of said rotary drum, all arranged substantially as and for the pur pose specified.

8. In a machine for pulverizing quartz, a stationary hollow cylindrical support, and the pedestal upon which said cylindrical support is mounted, provided with the upper bifurcated end and central concavity as described, in combination with a series of rolls traveling around said hollow support, a rotary drum surrounding said rolls, and a centrally -arranged shaft connected at one end to said drum through the medium of the end disk thereof and mounted at its other end in a pedestal and located intermediate its ends within the bifurcation or concavity at the upper end of the main supporting pedestal, substantially as and for the purpose described. In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

FREDRIOK WILLIAM THOMSON. Witnesses:

B. S. FERTHEDGE, W. W. RUssELL.