Major Coxhill from West End, NC

Gyratory Crusher With Bushing Assembly Between Inner Eccentric Antifriction Bearing
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US Patent:

40349225, Jul 12, 1977
Filed:

Jun 8, 1976
Appl. No.:

5/693783
Inventors:

Major Coxhill - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

B02C 204
US Classification:

241213
Abstract:

In a crusher having a crusher head shaft which is adjustable under load in the vertical direction and passes through a drive eccentric, clearance must exist between the shaft and the inner eccentric bearing. Due to the constantly rotating crushing load which moves angularly in the same direction as the drive eccentric is rotating and relative to the shaft which is stationary or slowly rotating in a direction opposite to the direction in which the drive eccentric is rotating, the inner race of the inner bearing of the eccentric should be an interference fit on the shaft. If the inner race is not an interference fit on the shaft, rapid wear will occur on both the shaft and the bearing bore. To overcome these two opposing requirements of a loose fit for adjusting purposes and a tight fit for good bearing practice, a composite bushing assembly is provided. The assembly includes a steel bushing and a bronze bushing with the steel bushing having an interference fit in the bearing race while the bronze bushing provides the necessary clearance for the vertical adjustment of the shaft.

Gyratory Crusher Eccentric Assembly Removal System
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US Patent:

40278255, Jun 7, 1977
Filed:

Jun 8, 1976
Appl. No.:

5/693781
Inventors:

Major Coxhill - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

B02C 206
US Classification:

241213
Abstract:

Eccentric assembly removal is accomplished by operation of the crusher head shaft piston exerting an upward pushing force on the eccentric assembly and simultaneously applying high pressure fluid to the eccentric outer bearing housing.

Impeller Locking Means For Impact Crusher Rotor
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US Patent:

40391515, Aug 2, 1977
Filed:

Sep 7, 1976
Appl. No.:

5/721173
Inventors:

Major Coxhill - Appleton WI
Jerome R. Unger - Appleton WI
Keith B. Lowe - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

B02C 1306
US Classification:

241191
Abstract:

A locking means for the impellers of an impact crusher rotor is disclosed wherein the impellers are partly within axially extending peripheral slots which are diametrically opposite each other; semi-cylindrical cavities are formed in the face of the leading wall and the face of the impeller which cooperate to define a cylindrical bore extending parallel to the axis of the rotor; within the cylindrical bore a wedge lock is inserted which is a two-part device each having a flat surface complementary to each other and machined at an angle to the outside diameter of the composite wedge lock; the diameters of the outer surface of each wedge portion is centered at different locations thereby effectively preventing rotation of the wedge lock; a key on the convex surface of the smaller wedge portion cooperate with a recess formed in the semi-cylindrical cavity of the face of the leading wall to prevent axial movement of the wedge portion; a knock-out rod is provided to release the wedge lock for replacing of the impeller.

Gear And Pinion Backlash Adjustment For The Drive Of A Gyratory Crusher
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US Patent:

40847560, Apr 18, 1978
Filed:

Jun 8, 1976
Appl. No.:

5/693784
Inventors:

Major Coxhill - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

B02C 204
US Classification:

241213
Abstract:

Centerline of the pinion and gear is offset from the centerline of the bore in which the pinion bearing housing is contained. A change holds the bearing housing in operating position and is also operable to rotatably adjust the pinion housing, the O. D. of which is eccentric relative to its I. D. Thus rotation of the bearing housing within the bore effects the adjustment of the vertical height of the pinion relative to the driving gear.

Lifter Cage For Asphalt Plant, Dryers And Drum Mixers
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US Patent:

43387322, Jul 13, 1982
Filed:

Dec 15, 1980
Appl. No.:

6/217534
Inventors:

Major Coxhill - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

F26B 1104
US Classification:

34135
Abstract:

An asphalt plant apparatus is disclosed having a material lifter cage arranged in coaxial relationship within a mixing drum. The lifter cage includes a plurality of cage lifters having a trough-like configuration for collecting material in the drum and spilling the material in a veil over the cross section of the drum as the cage lifters pass through a rotational path of travel. The cage lifters are divided into two sets alternately arranged about the lifter cage. The two sets consist of a first set of cage lifters having a material retaining surface fixed at an angle with respect to a radial line extending from the axis of rotation and a second set of cage lifters fixed at an angle approximately 20. degree. different from that of the first set. As the cage lifters pass through the path of travel, the first set of lifters spills material over an arc of the path approximately 20. degree.

Gyratory Crusher Having Antispin Device For Head
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US Patent:

40378004, Jul 26, 1977
Filed:

Jun 8, 1976
Appl. No.:

5/693785
Inventors:

Major Coxhill - Appleton WI
Assignee:

Allis-Chalmers Corporation - Milwaukee WI
International Classification:

B02C 204
US Classification:

241213
Abstract:

In a gyratory crusher the crusher head is mounted on a drive shaft which is driven by an eccentric. The eccentric is continually rotated to cause the head to gyrate for effecting the crushing of material. an antispin arrangement is provided to prevent rotation of the crusher head in the same direction as the eccentric under idling conditions or no load conditions. The antispin device includes a pair of ratchets one of which is coupled to the shaft and the other of which is formed on the end face of a piston which is held in the counterbore of the drive shaft by a spring. A rectangular torsion rod extends through the center of the piston into a clearance hole bored in the crusher head drive shaft. The top of the torsion rod is anchored in the spider cap of the crusher.

Address:

Appleton, WI 54911

License #:

24212 - Expired

Issued Date:

Apr 23, 1971

Expiration Date:

Jun 30, 1984

Type:

Mechanical Engineer

Major Coxhill