US933501A - Concrete-mixer. - Google Patents

Description

H. O. TOWNSEND. CONCRETE MIXER. APPLIGATION FILED JAN.27, 1908.

v 9 3 3 50 1 Patented Sept. 7, 1909.

4 SHEETS-SHEET 1.

Swwewfoz H. O. TOWNSEND.

CONCRETE MIXER.

APPLICATION FILED JAN. 27, 1908.

PatentedSept. 7, 1909.

4 SHEETS-SHEET 2.

Elvwentoz adorn:

H. e. TOWNSEND.

CONCRETE MIXER.

APPLICATION FILED JAN. 27. 1908.

Patented Sept. 7, 1909.

- 4 SHEETS-SHEET 3.

H. G. TOWNSEND.

CONCRETE MIXER. APPLICATION FIL'ED JAN.27. 1908.

Patented Sept. 7, 1909.

4 SHEETS-SHEET 4.

wwzutoz HARRY o. TOWNSEND, or rETosKEY, MICHIGAN.

I CONCRETE-MIXER.

To all whom it may concern.

Be it known that I, HARRY C; .TOwNsENmE a citizen of the United States, residing at; Petoskey, in the county of Emmet and State of Michigan, have invented certain new and; useful Improvements in Concrete-Mixers, of which the following is a specification. My invention has relation to vehicles for: conveying and mixing the constituents comprised in concrete and the like. One of the objects of the invention is the" provision of a vehicle for the purpose stated embodying simple and durable means for, transmitting rotary motion from the travel- 3 ing wheels to the receptacle in which the concrete constituents are placed. Another object of the invention is the provision in a vehicle of the kind set forth, of means whereby the operator is enabled by the adjustment of certain parts to expe- I ditiously and easily start and stop rotation, of the receptacle while the vehicles en route 3 from one point toanother.

Another object is the provision in a con-f crete mixing Vehicle, of means for automatic-v proper quantity of water, the receptacle while the' ally supplying a to the mlxture in vehicle is in motion, and still another object is the provision of means whereby the means like. The receptacle is preferabl though for automatically supplying water ma be put out of operation at the pleasure o the? operator, and any desired quantity of water may be manually supplied to the receptacle. There are many other advantageous char- 1 acteristics [peculiar to my invention, and these will be fully appreciated from the following desoription and claims when the same are read' in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a side elevation of the vehicle constituting the best practical embodiment of my invention at present known to me. Fig. 2 is a plan View of the vehicle. Fig. 3 is a vertical, transverse section of the vehicle, taken in a plane extending through the hollow axle. Fig. 4 is a fragmentary perspective view showing a portion of the receptacle comprised in the vehicle, and the door of said receptacle. Fig. 5 is a vertical section, on an enlar ed-scale, showing the valve for controlling t e passage of water to the receptacle and the appurtenances of said valve. Figs. 6 and 7 are detail, fragmentary views showing the relative arrangement of Specification of Letters Patent referring to which:

'cretion of the manufacturer.

The said opening 7' Patented Sept. '7, 1909.

Application filed January 27, 1808. Serial No. 412,853.

the hollow axle-and the receptacle of the vehicle. Fig. 8 is a detail view of the sprocket belt, showing the tappets thereon for opening the water-supply valve. Fig. 9 is an enlarged detail section of the gearing comprised in the mechanism for actuating the water valve.

' Similar letters designate corresponding parts in all of the views of the drawings,

A is the frame of my novel vehicle, which may bemade of wood or metal in the dis- The said frame essentially comprises side bars a, but otherwise it may be of any construction compatible with the purpose of my invention.

B is a hollow axle extending between and fixed in the side bars a of frame A. The said axle is provided in its underside at intervals of its length with minute discharge apertures b; and it is also provided with collars c, spmdles d and plugs e, the latter for closing its ends. As clearly shown the collars c of the axle rest'at the outer sides I 80 of the receptacle, presently described, while the spindles d extend to and through the side bars a of frame A. C is the said receptacle which is designed to receive the constituents that enter into concrete and the receptacle C circular openings are provided, t5

which openings 2' receive the hollow axle B and are larger in diameter than said axle in about the proportion illustrated for a purpose presently described. One of the rec tangularly disposed walls of the receptacle 0 100 is provided with an opening j through which the broken stone or gravel and other constituents of the concrete may be introduced and also through which the concrete may 'be discharged when the receptacle" is turned by hand on axle B to position said openingj at the lowermost point of the receptacle; 1S controlled by'a door in slidablein. guideways I, Fig. 4, and when desired a suitable fastener (not 'shdwn) -'may;be

I employed for detachabl securin the door planes of the major portions of the eccen trics: and the said arms n are connected through a bail-shaped link p, Fig. 2, with a lever E mounted on frame A. A se ental rack F is fixed on the frame A and t e lever E is provided with the conventional or any other suitable detent to engage said rack,-

whereby it will be apparent that the eccentrics may be fixed in various positions, relai tive to the axle B.

G G are the traveling wheels of the vehicle which serve to support the frame A and the parts carried thereby, The said traveling wheels respectively comprise a hub 1' having a circular opening 8 receiving one of the eccentrics D, a rim t connected through spokes u with the hub r, and a ring 0 arranged at the inner sideof the spokes and connected through radial projections w with the rim t.

The rings o of the two wheels G are ar-.

.ranged in the same vertical planes as the rims m of the receptacle C, and they serve when the frame A and axle B are lowered, relative to the wheelsG, to support the receptacle C and to frictionally engage the I said rims m of the receptacle C so as to cause said receptacle to rotate about the axle B when the vehicle is moved on the wheels G. In this connection it will be noticed that movement of the. eccentrics D in one direction about the axle B will depress the frame A, axle B and receptacle C and put the rims m of the latter in frictional engagement with the rings a so as to assure the receptacle C rotating with the wheels G to thoroughly commin le the concrete constituents in the receptac e while the vehicle is en route from one point to another; and it will also be noticed that when the eccentrics D are moved in the opposite direction about the axle B, the frame A, axle B and receptacle C will be raised, relative to the wheels G, whereupon the receptacle C will hang on the axle B with its rims m clear of the rings '0 of wheels G and conse uently said receptacle will remain at rest; rom thisit follows that while the vehicle is in motion, the operator is enabled to put" and retain the receptacle C in engagement with the wheels G until the receptacle 0 is rotated a desired number of times, and may then put the receptacle C out of engagement with the wheels G so that the receptacle will hang at rest on the axle B until the point of discharge is reached. At this latter point and while the vehicle is stationary, the operator may turn the receptacle 0 on the axle B until the opening 7' of the re ceptacle is at the lowermost point thereof and may then by opening the door k effect the discharge of the concrete contained in the receptacle. i

H is a water tank arranged on and carried by the frame A, and I is a conduit extending between the tank H and the hollow axle B and having for its oflice to carry water from the former to the latter so as to assure a proper supply of water to the stone, cement etc. in the receptacle C. In the said conduit I is a valve casing J containing a rotary cut-off valve K which is arranged, when opened against the action of a spring L surrounding its stem M as shown, to permit water to pass to the hollow axle B and thence to the mixture in the receptacle C. On the stem Mof valve K is a disk N having peripheral projections P, and on the hub '2" of one wheel G is a spur gear R. Carried by the frame A and arranged, when said 'frame A, the axle B and the receptacle 0 'are depressed, to intermesh with the gear R is a gear S having at one side a clutch member T. Loosely mounted on the shaft U which carries the gear S is a sprocket gear V, movable laterally on the shaft and having a clutch member W complementary and opposed to thetclutch member T, and also having a collar X having a circumferential groove X designed to receive the lower end of a lever Y. When the sprocket gear V is moved laterally through the medium of lever Y to place theclutch member W in en gagement with the clutch member T of the gear S, the sprocket gear V will obviously rotate with the gear S, but when the sprocket gear V is moved laterally 1n the opposite direction' the connection between the two gears will be interrupted and the gear V will be rendered idle.

Passed around the sprocket gear V and on dler sprocket gear Z arranged on frame A in advance of the gear V is a sprocket belt Afhaving three (more or less) tappets B F1g s. 1 and 8, arranged to engage the pro- 115 1ect1ons P of disk N in passing the same and thereby open the valve K to permit water to pass from the source of supply to the receptacle C. Thus it will be seen that when the receptacle C 1s in position to rotate and the .120 vehicle 1s 1n motion, water will be supplied at an interval to the mixture in said receptacle. It will also be seen that by interrupt- 1ng the connection between the gears S and V, the operator may expeditiously and easily 1.2-5 stop such supply of water to the mixture in receptacle C; and it will further be seen that when it is desirable to continuously supply water to the mixture in receptacle C, the 1 operator may through the medium of the'l130 jected.

disk N open the valveK by hand and hold said valve open as long as may be essential.

The device may be employed to, advantage as follows: A proper amount of cement is placed in receptacle C and thetank is charged with water up to a mark (not shown) which may be provided in the inside thereof. Thedevice is then hauled, while the receptacle C is out of engagement with wheels G, to a sand or gravel plt, and sand or gravel is put in the receptacle C up to another mark which may be provided in the receptacle. The door k of the receptacle C is then closed, and the eccentrics D are adjusted to put the receptacle C in gear with the wheels G, and the device is driven toward the point where the concrete is to be used. While the device is en route the operator may at his pleasure establish and cut ofi the supply of water to the mixture in receptacle C, and when such point of use is reached, the operator may raise the frame A, axle B and receptacle C. The operator may then by hand turn the receptacle C on axle B until the opening 7' of the receptacle is at the lowermost point thereof, when by opening the door lc the receptacle will be discharged of its contents. 7

It will be gathered from theforegoing that my novel device is calculated to expeditiously and thoroughly mix the constituents that enter into concrete and the like; also that the device is simple and inexpensive in construction and is well adapted to withstand the rough usage to which devices of corresponding character are ordinarily sub- As before stated the construction herein illustrated and described constitutes the best traveling wheels one of which is provided with a mug, a vertically movable, rotary receptacle having a rim, adapted in the lower position of the receptacle to engage the ring of the wheel and derive motion therefrom, and means for raising the receptacle to interrupt connection between the wheel and the same.

2. The combination in a wheeled concrete mixer, of a receptacle, a source of water supply, a conduit intermediate said source of supply and receptacle, movable means normally preventing the passage of water through the conduit, and means operated by like, the combination of a frame, an axle,

a device for mixing concrete and the like, the combination of a frame, an axle,

one of the wheels and adapted to move the' movable means at intervals to permit the passage of water through the conduit.

3. In a device fomnixing concrete and the traveling wheels one of which is provided with a ring, and a rotary receptacle having a rim arranged to engage ring ,of the traveling wheel and derive rotary motion therefrom.

4%. In a device for mixing concrete and the like, the combination of a frame, an axle, traveling wheels one of which is provided with a ring, and a rotary rectangular receptacle mounted between and adapted to turn so in the same direction as said wheels and having angular recesses at its corners, the walls of which form transverse abutments in the receptacle, and also having a rim arranged to engage said ring of the traveling wheel and derive rotary motion therefrom.

5. Ina device for mixing concrete and the like, the combination of a frame, an axle, eccentrics mounted on the axle, means for adjustably fixing said-eccentrics, traveling wheels mounted on the eccentrics and having rings, and a receptacle arrangedonand movable vertically with respect to the axle and having rims arranged in one position of the eccentrics to friction'ally engage the rings 5 of'the wheels and derive rotary motion therefrom.

6. In a device for mixing concrete and the like, the. combination of a frame, a source of water supply thereon, a hollow axle connected with the source of water supply and having a discharge aperture, traveling Wheels, a receptacle surrounding the hollow axle, a connection intermediate one-of the traveling wheels and the receptacle for rotating the latter by the former, means for interrupting said connection to render the receptacle idle, a normally closed valve in the connection between the source of water supply and the axle, and means actuated by one of the traveling wheels for opening said valve at intervals.

7. In a device'for mixing concrete and the like, the combination of a frame, an axle fixed thereon, eccentrics mounted on and arranged to turn about the axle, means for adjusting andadju'stably fixing said eccentrics with respect to the frame, traveling like, the combination of a frame, a hollow &

justably fixing said eccentrics with respect to the frame, traveling wheels mounted on the eccentricsand having rings, a receptacle surrounding the axle and having openings in its sides of larger size than the axle receiving said axle and also having rims arranged in one position of the parts to engage the rings of the traveling wheels, a water tank on the frame, and a conduit intermediate said tank and the-hollow axle.

9. In a device for mixing concrete and the axle fixed in the frame and having a discharge aperture, eccentrics loosely mounted on the axle, means for adjusting and adjustably fixing said eccentrics with respect to the frame, traveling wheels mounted on the-eccentrics and having rings, a receptacle surrounding the axle and having openings in its sides of larger'size than the axle receivin said axle and also having rims arranged in one position of the parts to engage the rings of the traveling wheels, a water tank on the frame, a conduit intermediate said tank and the hollow axle, a normally closed valve in said conduit, and means actuated by one of the wheels for opening said valve at intervals. I

10. In a device for mixing concrete and the like, the combination of a frame, traveling wheels, a receptacle, a water tank on the frame, a conduit Intermediate said tank and the interior of the receptacle, a normally closed valve in said conduit, and means actuated by one of the wheels for opening said valve at intervals.

11. In a device for mixing concrete and the like, the combination of a frame, traveling wheels, a receptacle, a water tank on the frame, a conduit intermediate said tank and the interior of the receptacle, a normally the like, the combination of a frame, traveling wheels, a receptacle, a water tank on the frame, a conduit intermediate said tank and the interior of the receptacle, a normally closed valve in said conduit; said valve having a toothed disk on its stem, a belt mounted .in the frame and having a tappet for engaging the toothed disk and openin the valve, and a connection between one o the wheels and the belt comprising clutch members one of which is movable into and out of engage- 0 ment with the other.

13. In a. device for mixing concrete and the like, the combination of a frame, traveling wheels, a receptacle, a water tank on the frame, a conduit intermediate said tank and (as the interior of the receptacle, a normally closed valve in said conduit; said valve having a toothed disk on its stem, a belt mounted in the frame and having a tappet for engaging the toothed disk and opening the valve, '50 a connection comprising clutch members one of which is movable into and out of en agement with the other, and a band %ever mounted on the frameand engaged with a circumferential groove in said movable clutch member.

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

HARRY C. TOWNSEND.

\Vitnesses:

O. B. R001, H. II. GoonwIN.

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