US797636A - Pug-mill. - Google Patents

Description

No. 797,636. PATENTBD AUG. 22, 1905. v H. N. TENNILLE.

' PUGYMILL.

APPLIGATIOH FILED 0012.13, 1904.

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Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed October 13, 1904. $erial No. 223,346.

To aZZ whom, it may concern:

Be it known that I, HARRY N. TENNILLE, a citizen of the United States, residing at Manchester, in the county of Chesterfield and State of Virginia, have invented certain new and useful Improvements in Pug-Mills, of which the following is a specification.

This invention has for its object to improve the general construction of mills designed for working or tempering clay and like material required to be treated so as to cause the particles to adhere and render the mass susceptible to being molded or fashioned into the required shape.

The invention relates to the type of clay or pug mills employinga traveling wheel adapted to operate in a trough or pit into which the clay or other material to be worked is placed. In accordance with this invention a large wheel is arranged above the pit, trough, or mortar and is mounted upon rollers and supported at its center from a roof the rafters or braces of which outwardly and downwardly incline and are connected by tie-rods, said wheel having a groove in its periphery to receive the belt or cable by means of which power is imparted thereto. The traveling wheel is connected to the elevated wheel and rotates therewith.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a pug-mill embodying the invention. Fig. 2 is a top plan view thereof. Fig. 3 is a detail view of the upper portion of a post, showing the manner of connecting the roller thereto and illustrating an edge portion of the drive-wheel in section. Fig. 4 is a detail view of the means for supporting the hub or central portion of the drive-wheel.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The pit, mortar, or cavity for receiving the clay or other material to be worked is indicated at 1 and may be of any construction. A series of posts 2 are arranged about the pitin a circle and are provided near their upper ends with brackets 3 and rollers or wheels 4, the latter forming rotary supports for the peripheral portion of the drive-whcel 5, which is located above the pit at any determinate elevation. The posts 2 are connected at their upper ends by means of a roof structure comprising braces or rafters 6 and ties 7, the latter being connected at their ends to the outer extremities of the braces or rafters 6 in any substantial manner. A red 8 is pendent from the center of the roof structure and is provided at its lower end with a head 9, which underlaps the ties 7 and supports the same at a central point.

The drive-wheel 5 may be of any construction, and its rim is grooved to receive the cable or drive-belt 10, by means of which power is imparted thereto. The drive-wheel is supported at its outer edge upon the wheels 4 and at its center by means of the rod *8 and parts 6 and 7 of the roof structure. The spokes 11 of the drive-wheel have their inner ends tenoned and secured between plates 12 and 13, forming parts of the hub. A hanger comprising the base 1 1 and journal 15 is bolted or otherwise attached to the ties 7 at a central point, the base being hollow to clear the head 9 at the lower end of the rod 8. The journal 15 passes through the hub and receives a washer 16 and nut 17. Lateral displacement of the drive-wheel is prevented by reason of its pivotal connection with the roof structure, and vertical displacement is prevented by the rotary supports 1. The traveling wheel 18, by means of which the clay or material is kneaded, worked, or tempered, is journaled upon an arm 19, which is connected at its inner end with a central support 20 of the pit or mortar and at its outer end with the drive-wheel by meansof the post 21 and link 22, the latter being pivotally connected to a braced hanger 23, pendent from the drive-wheel a distance in advance of the post 21. Obviously the traveling wheel 18 may be connected to the drive-wheel in any manner so as to rotate therewith and adapt itself to the bulk of material in the pit or mortar to be worked. A counter-shaft 2 1 is located a short distance from the mill and is provided with a grooved pulley 25 and band-pulley 26, the latter being connected to a suitable source of power by means of the drive-belt 27. The cable or drive-belt 10 passes around the pulley 25 and over guide-pulleys 28, as indicated most clearly in Fig. 2.

The construction is such as to admit of a clay-mill of the type aforesaid being operated by means of an engine located a distance from the mill without the power-translating means interfering in the least with free access to the mill at every point. The drive-wheel 5 being elevated is out of the way, and both it and the drive-cable are not liable to have the material lodge thereon or to impede the work of supplying the mill with material and removing the same from the mill after being operated upon.

Having thus described the invention, What is claimed as new is 1. In a mill of the type described, the combination of a pit or mortar, a drive-Wheel elevated above the mortar, a pendent rod supporting the drive-wheel at a central point, rotary supports for sustaining the peripheral portion of the drive-wheel, a device for working the material, and means connecting the material-working device with the drive-wh eel, substantially as described.

2. In combination, a pit or mortar, a roof structure arranged above the mortar and comprising braces and ties, a drive-wheel, means connecting the upper ends of the brace with the central portion of the ties and supporting the central portion of the drive-wheel at its lower end, rotary supports for sustaining the peripheral portion of the drive-wheel, and a material-working device connected to and rotatable with the drive-wheel, substantially as set forth.

3. In combination, a roof structure comprising braces and ties, a centrally-disposed rod connecting the upper inner ends of the braces to the central portion of the ties, a hanger attached to the ties and-comprising a journal, a drive-wheel mounted upon the journal of the hanger, means for imparting movement to the drive-wheel, and a device for working the material attached to the drive-wheel for rotation therewith, substantially as set forth.

4. In combination, amortar, posts arranged about the mortar, a roof structure connecting the upper ends of the posts comprising braces and ties, a rod connecting the upper ends of the braces with the central portion of the ties, a hanger attached to said ties, a drive-wheel mounted upon the hanger, rotary supports attached to the posts near their upper ends for sustaining the outer portion of the drivewheel, atraveling wheel, means connecting the traveling Wheel with the drive-wheel, and a drive-cable for imparting movement to the drive-Wheel, substantially as specified.

In testimony whereof I aflix my signature in presence of two Witnesses.

HARRY N. TENNILLE.

Witnesses:

J. R. GRUN, J (J. HALL.

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