US973543A

US973543A - Concrete-mixing machine.

Info

Publication number: US973543A
Application number: US36889507A
Authority: US
Inventors: Jean Mueller
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-04-18
Filing date: 1907-04-18
Publication date: 1910-10-25
Anticipated expiration: 1927-10-25

Description

J. MULLER, CONCRETE MIXING MACHINE.

APPLICATION FILED APR.'18,1907. 973,543. I Patented Oct. 25, 1910.

\ 2 SHEETS-SHEET 1.

. .Zhvezz Z01- (ig'ifzfim-J I J. MULLER. conozm'rn MIXING mon'nm. APPLICATION FILED APB. m. 1907.

973,543. Patented Oct. 25, 1910.

2 B KEETSE!HEET 2.

Fig. 3

UNITED sTA'rns rnIENT OFFICE.

JEAN MULLER, 0F LACHEN-VONWYL, NEAR ST. GALLEN, SWIIZERLAND.

CONCRETE-MIXING MACHINE.

Specification of Letters Patent. Patent-ed Oct. 25, 1910.

Application filed April 18, 1807. Serial No. 388,895.

5! '0 all whom it may concern:

Be it known that I, J EAT. Mt'TLLEn, a citizen of Switzerland, reslding at Lachen- Vonwyl, near St. Gallen, Switzerland, have crete mixing machines are also known with drums runmng on pulleys and with or without driving shaftextendin through the drum. In this type of mac iine the drum being in one part the material to be mixed is'obliged to travel through the whole of it hence the drum cannot be divided in the middle for discharging, which renders the machine very troublesome to attend. There are also concrete mixing machines in which the elevator rails upon which the truck runs can be folded but not the frame which carries the hoisting pulleys so that. for trans porting the machinethe said frame must first be removed,

The object of this invention is to obviate the said defects. .To this end in the first place I employ a drum formed in two parts one of which is slidable on the driving shaft; One end of this driving shaft. is mounted in a bearingand the othereud has secured thereto the non-slidablc drum part mounted on pulleys, into which it. only partlyextendssoj-that the inlet is always perfectly free from obstruction. This arrangement permitsa rapid charging and discharging ofthe dru m without. any diffioulty whatever. In the second place Iconstruct the frame of the elevator carrying the hoistiugf pulleys and the truck rails'so as to be capable of'bciug thrown back'or folded to facilitate transport. I attain thescjobj'ects by ,the mechanism illustrated in theaccompanying two sheets of drawings, in

which Figure-1 is a side elevation partly in sec-' tion of a. concrete -|nixing-ma(.-lnue constructed in accordance with my invention. Fig. 2 is an end new of the unxing drulu In prae-' as seen from the. right. Fig. 3 is a plan, and Fi 4 a detail on an enlarged scale.

Simi or letters refer, to similar parts throughout the several views.

In carrying out my invention and referring to the figures generally, the concrete mixing druln a, a. is formed in two parts and arranged on the shaft 7); The latter is at one end mounted in the bearing X and at the other end has secured thereto the drum half a. The drum half a has a boss in at. its closed or left side which has a right "and a left hand screw thread. This thread is rigidly connected with the drum 'half a which is rotated by the drum half a and moves the drum half a when one -of the tongues is brought in gear with 1t.

y moving the lever o placed under the influence of a weight 0,- into the position shown in dotted lines in Fig. 4., atongue 0* connectedtherewith can be brought in gear with the said right hand thread and by moving the lever v in the opposite direction, see full lines, the tongue 0'' in gear with the left hand screw thread. These tongues are controlled by the lever o in the following manner: The: fulcrums 9 of the lever system andtheshaft of the lever v are turnably connected to a part of the frame of the machine. The lever 1 is rigidly connected to the shaft 'ofthe lever n and has its other end loosely connected by a 'link to the bolt 5 one end of which formsthe tongue 1' and the other end of which is loosely connected to the; lever 8.- The bolt I 5 is also loosely connected to the bolt 4 by means of a two armed lever 3, the one cud;

tive power and In gear with a spur wheel secured upon the shaft A. Thc latter is mounted at one end in the hearing A and at the: other eudin a bearing Ai Upon the shaft- A is also secured a spurpinion Zr which imparts the rotary motion received from m' and w to a s or when 6 secured upon the shaft- 1) which causes the drum By means of a number of bolts 11" on the inside of the drum half a projecting into the drum half a and abutting a oinst abut-- ment pieces therein, rotary moti is trans- 105. half a secured upon the latter to be rotated;

-the wheels leys 0 to turn and.

niitted from the drum, half a to the drum half a. By settin the lever w into the position shown in .ull lines in Fig. 4 (the shaft Z) rotating in the direction shown by the arrow) the drum half a is longitudinally moved to the right until it bears against the other drum half a. By moving the lever 12' into theposition shown in dotted lines the drum half a will be dis placed to the left and thus the drum a, a opened in the middle. The fixed drum half has a charge inlet/c which is'perfectly free from obstruction owing to the driving shaft not extending completely but only partly through the drum.

To the fixed section at the said inlet is secured a rim (1 supported by two rollers q mounted upon a cross piece vehicle frame e and the shaft I) being there by supported at this end. Into the said charge inlet projects the feed trough 1b which is secured to the two elevator rails. The latter are secured to the vehicle frame a of two parts i and -jhinged togethervat 7c, the end of each upper part a being bent horizontally.

j serves for the downward extension of the upper part i and is capable of being raised and folded upon 2'. A

Thevehicle frame 6 is furnished with a hoist frame Z- the upper part of which is se cured to the elevator rails and the lower part to the-said vehicle frame'i The portion of the said hoist frame projecting above the elevator rails is hinged at m and can be v a rope..-pulley 0 adapted to wind 'up and unwind the ropes 71 secured to the truck/j. To the shaft n is also secured a pulley 7' connected by means the rope scan be and off the drum 2! versa. Th1.S causes the rope p wound onto the pulley 9' and vice raised or lowered. The said ,truck at its bottom and top 1s respectivelyprovided with g and 9 t e former being situated above the top flange and the latter engaging between the flanges ofthe elevator rails;

. a disengaging lever u and en raising the-truckq, the wheels 9 run k flange of theelevator rails feels g flan es guide the'tr'uck. I

The Windlass has a clutch y, y employed uponthe shaft A, the clutch half 3 being formed to ser'veias clutch 'half 1 with abevel wheel in gear a bevelwheel secured upon the re e The clutch half y is connected with the latter by moansof two rods 16,24 with the lever-u. In

drum t'of a Windlass f secured to the -h In order to prevent the truck 9 from moving back the two rake jaws 3 are pressed against the brake pulley 3 In the drawing the full lines show the truck 9 in its lowest position ready for filling. To convey its contents through the trough 7:, into the mixing drum a; the filled truck 9 is raised into the position shown in dotted lines in which one of the'wheels q contacts with the lever it connected with the oist gearso. as to stop the same automatically.. The truck g takes up this position owing to the lower art thereof being drawn upward and the wheels-g being prevented from rising by the horizontal part of the elevator rails; so that the truck g tilts and empties its contents, after which it is lowered for being filled again.

After the material has been sufiiciently mixed it is discharged from the'drum downward by displacing the slidable partthereof.

The truck 9 can be folded upward and the upper portion of the hoist lowered backward into the position shown in long and short dotted lines which facilitates the transport of such concrete mixing to pieces.

The machine may be driven by any s'uitable motor.

I claim':

1. In a mixing apparatus, a driving shaft, a .rotary mixing chamber thereon comprising two parts, one of-which has acentral charge opening and is rigidly and the other sli'dably secured to the said shaft the said slidably se'curedpart and the other terminates inside the rig dly secured part a bearing for sup orting the said shaft oute mixing c amber, means other than running between the.

a brake pulley and the the said shaft for supporting the said rigidly fixed chamber part andmechanism for moving the said slidable part into and out of engagement with the said rigidly secured part, all combined substantially as and for the purpose set forth.-

\ n' a' mixing apparatus, a driving shaft, a rotary mixing chamber thereon machines by rail without having to take itand one end of which shaft extends through distance away from the said charge opening,-

raised, the rail part which has a compr' g two parts, one of. central ch opening and is rigidly and the other sli ably secured to the said shaft;

one end of the saidshaft extending through the said sIidabIy secured part and'the other terminat ng inside the shaft outside the said mixing chamberf means for supporting the said rigidly secured pai'iflcomprising a rim thereon and rollers upon which the said rim runs and mechanism for moving the said slida ble part into and out of engagement with the said rigidly secured part, all combined substm1- tiallyas and fertile purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of 10 two subscribinu witnesses.

JEAN MULLER.

VVit-nesses CARL LAUDER, MARY FALUONER.