US915703A - Elevator for beton-mixing machines. - Google Patents

Description

A. SGHWYZER. ELEVATOR FOB BETON MIXING MACHINES.

APPLICATIOE EILBDJBU. 12, 1905.

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ELEVATOR FOR BETON MIXING MACHINES. APPLIOATION FILED D2012, 1905.

Patented Mar. 1.6, 1909.

2 SHEETS-SHEET 2.

UNITED STATES P e TENT orrron ALBERT scnwYzER, or BALsrHAnjswITzERLANn, AssieNoR TO GESELLSUHAFT DER tunw. VON 'ROLLSCHENEISENWERKE, or GERLAFINGEN, SWITZERLAND.

. ELEVATOR FOR BETON- MIXING MAGHINESL Specification of Letters Patent.

Patented March 16, 1909.

To all whom it may camera."

Be it known that'I, ALBERT SGHWYZER, cltizen of Switzerland, residing. at. Balstha'l,

Elevators for Beton-Mixing Machines, "of

which the following is a specification.

The elevators hitherto used in portable beton mixing machines havebeen found defective lnasmuch as' when adapted to raise the material rather high-they required taking down to facilitate the movi-ngabout 'of themachine.

The object ofthis invention is to overcome said defect. I attain this object by the mechanism illustrated in the accompanying two sheets of drawings which show one em- .bodiment of my invention and in which i Figure 1 is a side view and Fig. 2 asectional front view. Fig; 3 is a side view and Fig; 4 a longitudinal section of the clutch of.

3 thefwindin shaft of the machineshown on emp oyed the elevator of an enlarge scale".

Similar letters refer to similar parts U on the frame as furnished withwheelsfls the heton mixing machine. Y

a is the main shaft from-which by means of a pair of bevel wheels 0, d and clutch box 6, e rotary motion. is transmitted to the shaft 6.

- The wheel d is mounted loosely u on the shaft b and the power is transmitte to the shaft b by means of a disengageable clutch box 0.

- By means of the wire ropes m assing over.

the guide pulleys It, the elevator ox f is connected with the pulleys h secured upon the shaft 6, thepulleys h rotating in one dlrection winding the box f up and rotating in the other direction lowering the same. To the top and the bottom of the elevator box f are respectively secured the pulleys i,

i, the former belng adapted to run in and the lattefupon the guide rails is, k, the. upper ends of which are bent-to cause the box j when arriving at the top to tilt and empty, the pulley i .then leaving the rails k, 1.7, see

Fig 1. I

o the cross piece at are fulcrumed at sand 2' respectively the levers 7' and Z, the former connecting the lever Z with the clutch membere. To one side of the machine frame as is fulcrumed the lever lt, by a rod 0 connected to the rear endof the lever Z.

I When it'is desired to raise the boxf, the lever'l is ,lifted,-which causes the lever 7' to bring the clutch member e in gear with e on the bevel Wheel d, the shaft 12 to be rotated and the'pulleys h to wind on the wire ropes m.

When the boxf has beenraised to its desired hei ht, the clutch pulley iis timed to contact wit and raise the lever n elevating the rod 0 and respective end of the lever-Z and thereby throwing the clutch membere out of gear with e and stoppingthe travel of the box.

" Upon the shaft 6 is mounted loosely turnable a brake disk w which together with a disk 1) secured upon the shaft b form a silent sto ping gear. For this purpose the interior of t e rim of the disk w has ratchet teeth and to its boss is clamped a ring w loosely turnframe a: of the elevator is suitably fulcrumed a two rods 10 to two hand lever t having a weight p and at one end secured a band y 1 passing around the brake disk w and the other end secured to the beam ;x' of the frame of the elevator, the said weight kee ing. the said band always at a tension an the brake disk thushaving the tendency of remaining at rest.

The sto ing gear describedoperates as follows: hen raising the elevator box theshaft b and consequently the disk v isrotated in the direction the opposite of thearrow shown in Fig. 3, thelrin w" .having the tendency to stop with the pawls 'w are-drawn inward by the rods .11;

the box to be retained in its tilted position.

The box is lowered by releasing the brake lever t.

. To facilitate the machine being moved rake disk, the

and thus'are brought out of gear with the teeth of the disk 1) in'order, to render the stopping apparatus silent, that is to say, to pre- 4 I vent t about, the lower arts of the rails is arehinged l bent ends causing the box to tilt automaticat u to permit 0 being raised into the osially in its highest position, and means actution shown in dotted lines in Fig. 1, in w 'ch ated by the said box when in its highest posithey are held secure by means of flat bars g i tion for step ing the said box raising means, and bolts. 7 all combine substantially as and for the What I claim as my invention and desire purpose set forth. to secure by Letters Patent, is 7 I In testimony whereof I have signed my In an elevator for beton mixing machines, 3 name to this specification in the presence of -ide rails bent at their upper ends, .a beton two subscribing witnesses.

- ALB. SOHWYZER.

ox, pulleys respectively secured to the bottom and the top of and means for raising and Z lowering the said box on the said rails, .the Witnesses: said bottom pulleys running upon and the 1 E. BAUMANN,

said toppulleys in the said railsand the said ALFRED C. Pnvls.

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