US1098873A - Forcing-machine. - Google Patents

Description

E. E. ALLEN.

FORGING MACHINE,

APPLIGATloN FILED 00T. 11. mi.

'LUQSW Patented June 2, 1914.

UNITED STATES PATENT -oEEroE DWARD ALLEN, OF ERIE, PENNSYLVANIA, ASSIGNOR TO THE ALLEN MACHINE COMPANY, OF ERIE, PENNSYLVANIA, .A CORPORATION OF PENNSYLVANIA.

FORCING-IVIACHINE.

Specification of Letters Patent.

'application sled october 11, 1911.

To all whom t may concern Be it known that I, EDWARD E. ALLEN, a citizen of the Uni-ted States, residing at Erie, in the county of .Erie and State of lennsylvania,` have invented certain new and useful Improvements in Forcing-Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this spe'cliication. My invention relates to forcing machines, and has for its object the construction of .a forcing machine adapted to manipulate plasy tic material in which machine the end-thrust of the forcingscrew is practically elimi-V nated. This and other featuresof my 'invention will appear' hereinafter in the speci fcation, and are illustrated in the drawings ink which:

Figure l is a front View in elevation of my improved forcing machine. Fig. 2 is a top or plan view thereof; Fig. 3 is a vertical central section of the body portion thereof showing portions of the active mechanism in elevation. Fig. 4 is a transverse central section of the same.

' Machines of this character are generally used in factories wherein is treated plasticv material, such as clay or rubber, which in the ltransformation from a mass without form intol a body with form, as in the malo ing of bricks, tile, carriage tires, and rubber tubing, is forced through dies of the required formation, to produce a continuous column or tube, which may afterward be dried and 40 burned, or otherwise cured. Also in the rubber re-claiming art my improved machine may be employed to force the plastic, re-

clalmed rubber through a suitable screen' secured in the case of the machine, for the purpose of separating foreign substances, i which have not been destroyed by the action of the chemicals employed, from the mass. In these drawings A, indicates the base of the` machine, and A A indicate pillars for supporting the operative parts thereof.

Upon the pillars A', I mount the body B, of`

the machine whichis preferably formed of cast metal having a hollow centrallongitudinal cylinder b, therein which is surrounded by annular jacket chambers b2, b3 and b* which may be filled with a temperature controlling medium when desired, and there are also provided feed openings b t adjacent to the ends of the cylinder, which eX- tend through the walls of the cylinder b and 6o outward through the jacket chambers b3 and b4, as shown in the drawing. Upon the upper side of the body B, I place a steam or water chest C which is divided into compartments c2, es and c* each of which com- 65 partments communicating with one of the chambers b2, b3 and b4, and each of said com partments is provided with inlet cocks o5 on one side for water and c6 on the other side for steam, and the acket chambers t2, be and 7g b4, vare also provided with escape pipes c7, through which the temperature regulating medium in the jacket chambers may be permitted to escape. Within the hollow central cylinder b, I place a forcing screw D, which is provided with a right-andleft worm thread, and around the middle portion of this forcing screw D, I preferably place a circumferential supporting ring or rib d, which may contact with the inner wall of 3g the central cylinder Z), and prevent any undue springing of the screw D. At each end the screw D is supported upon journals D', which are provided with thrust rings d to provide against certain contingencies here- 35 inafter set forth. These journals D are supported in bearings 2-'- 3, the lower half D2, thereof resting upon the pillars A', and the upper half D3 thereof being bolted to the lower half by means of the `bolts d2, as shown, and both halves being secured t0 the ends of the body B, by means of bolts D4. The screw D, is preferably provided with a central longitudinal opening als (see Figs. 3y and 4l) therethrough, through which 95 Water or steam may be circulated in order to regulate the'temperature of the screw. Upon the ends of the forcing screw D, outside of the journals D', thereon, I place suitable driving wheels E preferably of the spurgear type with the inner ends'of the hubs E= thereof contacting against the outer end of the bearings D2-D3, which said wheels E, receiving motion and power through the medium of the pulley F, shaft'f and pinions 10:54

f', mounted in suitable bearings G, on thel pillars A. Stuffing box mechanism H, is provided in each end of the forcing screw through which supply and., dicliarlm` pipes H pass, by meansofwhich tempera# l11o ture regulating mediums may be circulated through the forcing screw D. Opening from \the screw-chamber within the central cylinder at right angles to the axis thereof, I

provide a discharge openin J, within which suitable dies, or a screen not shown). may be secured,'the middle jacket chamber b2 being so extended as to jacket said discharge opening, as shown in Fig. 4:.

In operation power is applied to the pul ley F, and therethrough to the spur-wheels E which cause the forcing screw D to rotate. Plastic material to be manipulated is then fed into the machine through the openings l5 b', care being taken to keep an equal sup-v ply in each opening. In case the supply of material in either opening b', should fall short thev thrust rings d" will prevent end? wise movement of the screw D. The matel rial fed into the opening Z2', is caught by the screw and carried from each end'toward .the discharge opening J, from which it may emerge through' a screen or die (not shown) of any suitable forni, in a continuously moving stream. During this operation it may be necessary to raise the temperature of the walls of the cylinder b, or to cool them as the case may be; in which case the end portions may be made cool or warm, or the middle portion maybe made cool or warm independent of the end portions, by permitting steam or Water 'to circulate through the jacket chambers b2, b3 and b4, and like# wise the screw D, can be cooled orwarmed by permitting water or steam to 'circulate 35 through the screw.

Having thus shown and described my invention so as to enable others to construct and utilize the same what I claim as new and desire to secure by Letters-Patent is:

A base plate, pedestals secured thereon, a cylinder vhaving feed openings at each end thereof and a discharge opening at the intermediate portion thereof, a flange around said discharge opening, horizontally divided thrustvjournal bearings on said pedestals, radial flanges on said bearings, bolts passing through said anges and secured in the ends of said cylinder, a right and left hand forcing screw within said cylinder and mounted in said bearings, spur gear wheels secured on the ends of said screw outside of said journal bearings, a drive-shaft mounted in bearings on said pedestals, pinions on said shaft intermeshing with said spur-gear .wheels, and means for rotating said shaft,

substantially as set forth.v

In testimony whereof I affix my signature,

in presence of two witnesses.

EDWARD E. ALLEN.

Witnesses:

II. M. STURGEON, FLoRnNCE S'rocKnR'r.

Copies of this patent may be obtained for ve cents each, by addressing ther Commissioner of Patents,

Washington, D. G. J

Images