US975369A - Quartz-mill. - Google Patents

Description

J. w. MYER.

QUARTZ MILL.

APPLIUATIUH FILED 155.23, 1910.

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UNITED sTATEs PATENT oEEIoE;

JAMES W. MYER, 0F SAN FRANCISCO, CALIFORNIA.

QUARTZ-MILL.

Specification of Letters Patent.

Application led February 28, 1910. Serial No: 546,487.

vuseful Quartz-Mill, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a quartz mill and its object is to produce a shell supporting device which vwill always hold the ruuner at a sufficient distance from the xed part of the mill to insure the proper feed at all times. It is to be noted that in the type of mill herein illustrated the runner is oftenv very heavy and on account of its considerable weight the mill does not feed the rock into the grinding surfaces as rapidly as it should. The runner must therefore be supported above the fixed member at such a distance therefrom as will insure the proper grinding of the material, while at the same time the wear of the sevy eral parts must be taken account of and the upper portion of a mill of this type the base l being omitted, Fig. 2 is a plan view of'the mill, Fig. 3 is a plan view of one of the nut locking devices, Fig. 4 is a sectional view of a portion of one of the adjusting devices showing thesnap used to secure the nut in a given position, and Fig. 5 is a plan view of the nut turning head as it appears around the nut for adjusting the runner.

It will be understood by those skilled in the art that this adjusting device may be applied to any type of mill having a heavy runner which requires support for the proper feeding of the material to be ground.

The numeral 1 represents the base of the mill on which the runner 2 rotates, said runner being provided with feed openings 3 in thc top thereof. The base has a post 4 and about which said base .is cast. This post is provided with screw threads at its upper end, and it is provided with a key way 5. t0

Cn the post is a nut. 6 having a flange support the shell 2, and said nut has an arm 8 secured thereto at itsupper end, note Fig.

Patented Nov. 8, 1910.

5, said arm being adapted to rotate the nut to raise or lower the same as may be desired. This nut is rovided with a key way 9 in which a feat er 10 on the disk 1l is ada ted to slide, and this disk is prevented rom moving away from the flange 7 by means of a. nut 12 threaded on the outside of the nut 6, said disk 11 preventing the nut 12 from being either-tightened or loosened on the rotation of the shell 2. In order that the nut 6 may be secured on the post 4 in any desired relation thereto the disk 13 is provided said disk having a feather which is adapted to travel in the key way of the post. This disk has its periphery provided with a series of notches in which a spring latch 14 engaves, a spring l5 bearing on the latch to hold 1t out of or in contact with the disk 13 as may be desired. The latch is secured on the arm 8. Above the disk 13 a nut is threaded on the post and it holds the disk 13 in close contact with the top of the nut 6. The threads on the post extend fan enough down the latter to permit a considerable adjustment of the shell to allow for the wearing of its grinding surfaces.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. In a quartz mill, a fixed grinding member, a runner, a post adapted to hold said runner in a given position with respect to the fixed member, a flanged nut adapted to hold the runner at a fixed distance away from the grinding member, means to lock said nut against rotation, a second nut adapted to prevent the runner from moving more than a given distance away from the grinding member and means to prevent the runner'from bearing directly on said second nut, as set forth.

2. In a quartz mill, a fixed grindino mem.

` ber, a runner, a post adapted to hold said runner in a glven position with respect to said grinding member, a lianged nut adapted to support the runner at a fixed distance away from the grinding member,.a disk adapted to hold said nut from rotation, a second nut adapted to prevent the runner from moving away from the grinding member, and a. ixed disk te prevent the rctation of said second nut, as set forth.

3. In a quartz mili, a fixed grinding member, a runner, a post, a nut on sald ost adapted to support the runner at a ed distance awa7 from the grinding member, a second nut adapted to prevent said runner from moving away from the grinding member more than a fixed distance, and means to prevent the movement of said first nut during the rotation of the runner, as set forth.

4. In a quartz mill, a fixed grinding member, a runner, a post adapted to hold the runner in a fixed relation with the grinding member, a flanged nut on said post adapted to support the runner a fixed distance above the grinding member, a nut on the first nut and adapted to prevent the runner from moving away Jfrom the grinding member, a

fixed plate adapted to prevent the rot-ation o said second nut during the time of rotation of the runner, a second plate fixed against rotation and slirlable on the postV above the first nut., means to lock the firsty nut in any one of a number of positions with respect t`o said second plate, and a nut adapted to secure the second plate closely to the first nat, as set forth.

In testimonj,- whereof I have hereunto set my hand this 19th clay of February A. D. lQlO, in the presence of the two subscribed witnesses.

JAMES 7. MYER.

Tit nesses A. K. DAGGETT, RoswnLL P. ROGERS.

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