US1435616A

US1435616A - Rubber masticator

Info

Publication number: US1435616A
Application number: US546577A
Authority: US
Inventors: Clifford C Mosher
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-03-25
Filing date: 1922-03-25
Publication date: 1922-11-14
Anticipated expiration: 1939-11-14

Description

C. C. MOSHER.

' RUBBER MASTICATOR- 'APPLICATION. FILED MAR; 25 192 2.

lP temea Nov. 141, 1922; v

8 SHEETS-SHEET 1.

Cf C/Wosizerg c. c. MOSHER, RUBBER MASTICATOR. APPLICATION FILEDMAR. 25,1922:

, 8 SHEETS-SHEET 2.

c. C.'MOSHER RUBBER MASTICATOR.

APPLICATION FILED'MAR-ZS, 1922- 1,435,616., I v Patented Nov. Ml, 11922.

8 SHEETS-SHEET 3.

mum doc Patented Nov. 14, 1922,

warren; stare PATENT CLIFFORD o. 'IVIOSHER, or LIMA, OHIO.

RUBBER MASTICATOR.

Application filed March 25, 1922. Serial No. l6,577.

a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented new and useful Improvements in Rubber Masticators, of which the following is a specification.

This invention relates to machines for mixing and kneading plastic materials, more especially rubber compounds, and consists in certain improvements I have made to the machines covered by my Patents N0.

, 1,371,046 of March 8, 1921, and No. 1,396,138

of Nov. 8, 1921, and known as rubber masticatorsj The principal elements of the presentmachine are the same as those of the said earlier machines, and the present improvements are directed to the means for ralsmg and lowering the frame and weight off and onto the trough neck, said means acting 'at the same time to tilt the trough, to the means for raising and lowering the weight in the frame, and to the form and structure of the weight and the provisions for feed- -1ng the materials therethrough' into the trough.

The improved machine is illustrated in 'the accompanying drawing, in which,

Fig. 1 is "a plan view,

Fig. 2 is a vertical section from front to rear, and

Fig. 3 is a vertical sectionat right angles to Fig. 2.

In these views, the trough is marked 10, its upstanding rectangular neck 11, with external flange 12 at its top. On said flange fits the flange 14: of the frame or hopperbox 15, said flanges being provided with a tongue-and-groove connection .13. The flange 14, it willbe noticed, isexternal' on the front and rear walls of the frame and internal on the side walls thereof}, The top surfaces of the two internal flanges, see Fig. 3, constitute seats 16 for the correspondingly inclined shoulders 17 of the hopper weight 18 when it is in its lowest position. The

portion of the vhopper-weight below said shoulders fits slidably in the neck of the trough. while the portion thereof above the shoulders fits slidably in the frame. Racks 30 slide in slots in the side walls of the hopper-weightand in guides 19 on the frame and are connected to the shoulders 17 of the weight-by bolts 22, passed through a crossbar 21 and surrounded by a strongspring by "a worm 31 'on a short shaft 32, itself driven through worm gearing 33 by the motor 3e. All this mechanism, from the pinions 2a to the motor 34, is carried on the frame 15 and is raised and lowered with it by. the four corner screws 35, journalled in uprights .36 of the machine frame and threaded fi'nto lugs 37 of the frame 15, said screws being simultaneously rotated by the chain drive 38, actuated by the motor 39. It will be seen that, when the clutch 29 is engaged and the motor 34 rotates in one direction, the pinions 24 will force the racks, and through the springs 23 the weight 18, downwardly, causing pressure on the ma terial in the trough but permitting the weight to rise slightly in case of excess pressure. By disengaging the clutch the weight is leftfree to rise and fall and, by. rot-ating the motor 34 in the opposite direction, the weight can be raised out of the trough neck. The extreme upward and downward travel of the weight is controlled by limit switches of a well known kind connected to stop the motor.

The frontwall of the trough has a feed opening provided with a hinged cover 40,-

to cause a tumbling or turning over movement of the material and prevent a mere sliding movement thereof. The means for actuating the valve 45 consists of a shaft 16, carrying arms 47, connected to the valve by links 48 of such length that the valve is locked inits closed position-and also in Fig. 2-by reason of said arms and links comlng into alinement. Shaft 46 is driven through a chain 49 from short shaft 50, on

its raised position shown in dotted lines in the squared end of which fits a crank handle 51, shown in dotted lines in Fig. 3. Fig. 2 also shows in dotted lines the uppermost position of the weight.

On the outside of the front wall of the weight I mount an oil reservoir-32, from which a valved pipe 53 leads through the bottom of the weight into the trough. while 54: represents a thermometer to indicate the temperature of the inside of the trough, it being connected thereto by a pipe 56. 57 represents a gage to indicate the amount of oil in the reservoir. 58 is a pressure-relief valve, connected to thetrough through the weight by a pipe 59 and manually controlled by the hand wheel and shaft 60.

The trough is tilted simultaneously with the raising of the frame 15, by means of nuts 61. travelling on the two rear screws and connected to lugs 62 on the bottom of t in Fig. 2.

Having thus described my invention, what I claim is I 1. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of means to raise said frame off said neck and to simultaneously tilt the trough.

2. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of screws to raise and lower said frame and connections from two of said screws to tilt the trough.

3. In a mixing machine, the combination 'with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of four screws engaging the corners of said frame to raise and lower it, travelling nuts on two of said screws, and connections from said nuts to the trough whereby the lattfiar is tilted as said frame is raised or lowere 4. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of four fixed-axis screws threaded in corner lugs on said frame, power means to rotate said screws, a nut on each of the two rear screws, lugs on the bottom of the trough, and arms connecting said nuts and lugs, whereby the trough is tilted simultaneously with the raising or lowering of said frame.

opening and manual means 5. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of a hopper-weight slidable in. said -of a hopper-weight slidable in said frame and neck, power means carried by said frame and operatively connected to said hopperweight to raise and'lower the same, a clutch in said connections, and means to cushion the downward movement of said hopperweight.

7. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, of a hopper-weight slidable in said frame and neck, racks on the sidewalls of said hopper-weight, a motor carried by said frame, and connections including a clutch between said motor and racks.

8. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof during the operation, ofa hopper-weight slidable in said frame and neck, racks 'slidably-mounted on the side walls of said hopper-weight, springs between the latterand said racks, a motor carried on said frame, pinions engaging said racks, and connections including a clutch from said motor to said pinions.

9. In a mixing machine, the combination with the tiltable trough and a frame adapted to fit on the neck thereof durin the opera-- tion, of a hopper-weight slida le in said frame and neck, means carried by said frame to force said hopper-weight downwardl springs to allow said hopper-weight to .yie d upwardly, and means to raise said frame and hopper-weight off said neck.

10. In a mixing machine,.. the combination with the trough and. the mixing blades therein, of a hopper-weight slidable in the neck of said trough and having a central feed. opening in its bottom, the surface of said bottom being cylindrically concaved 011 each side of said opening, and a vertically movable valve to control said opening.

11. In a mixing machine, the combination with the trough and the mixing blades therein, of ahopper-weight slidable in the neck of the trough and having a central feed opening in its bottom, the surface of said bottom on each side of said opening being cylindrically concaved and serrated, a valve to control said to actuate said valve.

12. In a mixing machine, the combination with the troughand the mixing blades therein, of a hopper-weight slidable in the neck of the trough and having a central longitudinal feed opening in its bottom,.a valve controllin said opening, a shaft journalled in the wa ls of said hopper-weight, crank-arms on said shaft,-links connecting said arms tosaid valve, and manual means to rotate said shaft.

13. In a mixing machine, the combination with the mixing trough having an ,upstand ing rectangular neck outwardly flanged at its top, of a frame having an at its bottomfitting on 'saidneck flan a' hopper-weight the lower portioni'ofw ich fits in said neck while itsupper portion fits in said frame, the shoulder between said porneck thereof,

tions seating on the upper side of said inturned flange, means 'to raise and lower said hopper-weight in said frame' and neck, and means 'to raise and lower said frame and hopper-Weight; ofl and onto said neck.

14. In a mixing machine, the combination with the trough, of a-frame fitting on the a hopper-weight. s'lidably fittin said frame and neck, the front and rear inside walls of said hopper-weightsloping 25 to an outlet opening in the bottom thereof, a

feed opening at the top of said hopper-weight,

a valve controlling the outlet opening, ex-

ternal means to control, said valve manually,

an oil reservoir on said hopper-weight, and a; reservoir through the bottom of said hopper-weight valved pipe leading from" said into the trough.

inturnedfiange forms continuations of means to raise and lower said hopper onto sald neck, and connectlons from sald- 15:;A mixing machine comprising two parallel semi-cylindrical portions, a shaft ournalled in the axis-of each of "said portions,'a mixing blade on each shaft, means to drive said shaft in opposite directions, said trough having an upstanding rectangular neck, a weight sliding in said neck and.hav-

ing a central feed opening -in its bottom, the surface of the latter on-ea'oh side of said open ng forming a continuation of-the S1115,

per and closure mounted to fit on the neck of said trough,.mean's-to raise and lower said closure in said hopper,

a motor carried bj said hopper to actuate said means, power ff and powermeans to said trough to tilt the latter. In testimony whereof I have hereunto set myhand.

Witnesses:

' HLG, COLEMAN, A. J. ILLIEZ.

- CLIFFORD o. MOSHER;