US939771A - Pulverizer. - Google Patents

Description

M. J. WILLIAMS.

PULVERIZER.

- APPLICATION FILED PEB.16. 1909.

Patented Nov. 9, 1909.

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' Inventor: Milton J.W1Hiams Abfi'v.

Wihnesse-cs .4' inside of the casing PATENT OFFICE.

mI f'roN J. WILLIAMS, or CHICAGO, ILLINOIS.

' PULVEBIZER.

Specification of Letters Patent.

Patented Nov. 9,1909.

\ Application filed February 16, 1909. Serial 'No. 478,213.

To all whom it my concern:

Be itknown' that I, MILTON J. WILLIAMS,

a citizen ofthe United States, residing'at Chicago, Illinois, have invented a certain 5 new and useful Improvement in Pulverizers, of which the following is a full, clear, and exact description, such as will enable others skilledin the art to which it appertains to make. and use the same, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure 1 is a vertical sectional View through a pulverizer constructed according to my improvement. Fig. 2. is a horizontal, fragmentary sectional view through the same.

' This invention relates to a new and useful improvement in pulverizers of that type commercially known as the Williams mills, characterized by the pivoted revolving hammers which act upon the material as it enters the machine at the hopper, or breaker plate, as it is sometimes called, the material being further disintegrated or crushed by the hammers acting thereon as the material 'is carried over the cage or grinding surface. The crushed materialfalls through the openings in the cage or gri din surface into a suitable receptacle loc ted beneath the machine. The hammers or heaters which revolve about the shaft,

while made of a material whose resistance to wear is its essential quality, will, in time,- wear away at their strikin ends, and the farther. these grinding en s are removed from the breaker late and grinding surface, the less becomes t e capacity of the machine. It is the purpose of my present invention to provide means whereby these revolving hammers or heaters maybe adjusted outwardly to take'up this wear (or inwardly, 'ifoccasion requires,

introduced to replace a worn one), said means being opera-table preferably from the by relative rotary movement between two parts and effecting the simultaneous and uniform adjustment of all of the hammers or heaters.

n the draw ng 1 ndic t t e easin 2 the breaker plate, 3 the grinding surface "orcage, and 4 the cover of the machine,'which may or ma .notbe hun as desired. I 5 is a. s aft mounted in hearings in the side frames of the machine, one end of said shaft carryin a pulleyfand the other end a balance whee ne1ther of these being shown.

as. when a new cage is' 6 are disks fixed to shaft 5, said disks being provided with suitable openings in which are mounted through-bolts 7. On these through-bolts are mounted levers 8 whose inner ends are preferably hooked and in whose outer ends are supported'hammers or heaters 9. Disks 6 are slotted, asat 10, for the passage ofadjusting rods 11 mounted in heads or disks l2 loosely arranged on shaft 5. The movable disks 12 are locked in their rotary adjusted positions by means of bolts 13 passing through suitable openings 14 therein and into the holes of disks. 6. There may be as many of these openings and bolts as desired for efl ectingthe various adjustments.

In operation, when the hammers 9 are new, levers 8 rest with their hooked points upon therods .11. When theends of the hammers become worn, the'bolts 13 are with-. drawn and the movable disks 1'2 circumferentially adjusted so as to locate bars 11 in such positions that the inner ends of the levers 8 may move inwardly, and the hammers 9 outwardly to take up the wear of the V latter. These adjustments are made from time to time, after each adjustment the bolts I 13 being inserted andscrewed home so as to fix the relation of the movable disks .12 with respect to the fixed disks 6.

In order to prevent the hammers 9 and the levers 8 from falling,so as to dull the ed e of the striking points of the hammers, shou d sharp hammers be employed, I provide bolts 15, shown in Fig.-1.-

By referring to Fig. 2..it will be seen that there is a common bolt "(from which all of the levers are mounted'and also a-comm'on pivot bolt for'all of the hammers 9.

I. am aware that minor changes in the construction, arrangement and combination of *the' several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention. i

using the expression disks in the foregoing specification and in the following claims, I wish to be understood as not confining myself to circular disks, as the parts which perform the functions of the supporting disks described and claimed could be in the shape of spider-arms, .or other forms, metal being cut away at various places, where it was not needed, to lighten the mach ne Having thus described my invention, what I claim is:

supports.

2. In a pulverizer, the combination with a casing, a shaft, disks hired to said shaft, levers pivotally supported between said disks, revolving hammers pivotally carried by the outer ends of said levers and rotatable means cotiperating with the inner ends of said levers for adjusting the hammers inwardly and outwardly.

3. In a pulverizer, the combination with a casing, a shaft mounted in the casing, disks fixed to said shaft, levers pivotally mounted u on said disks, revolving hammers carried by said levers, disks rotatably mounted on said shaft, means for locking the last mentioned disks in their rotatably adjusted positions, and means carried by and rotary disks and cod erating with said levers for adjusting sai hammers, to move the hammers outwardly to take up the wear. v 4. In a'pulverizer, a casing, a shaft jourseem;

naled for rotation therein, disks .fixed on said shaft, in which disks are formed a series of concentric slots, rods passing throughcorresponding slots, a series of sets of lovers pivotally held between the disks, the inner ends of which levers bear upon the rods, revolving hammers pivotally carried by the outer ends of said levers, and rodadjusting means located on the shaft adjacent to the disks and engaging the ends of all of the rods.

5. In a pulverizer, a casing, a shaft journaled for rotation therein, disks fixed on said shaft, in which disks are formed a series of concentric slots, rods passing through corresponding slots, a series of sets-of levers pivotally held between the disks, theinner ends of which levers bear upon the rods, revolving hammers ivotally carried by the outer ends of said means located on the shaft adjacent to the disks and engaging the ends of all the rods, and means whereby the rod-adjusting means is locked to the disks after adjustment.

- In testimony whereof I hereunto afiix my signature in the presence of two witnesses, this 8th day of February, 1909.

-MILTON J. WILLIAMS.

Witnesses:

WILLIs Mnnvmn, I RmNHoLn E. Wm'rnn.

levers, rod-adjusting

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