US1089883A - Concrete-machine. - Google Patents

Description

E. N. TRUMP.

CONCRETE MACHINE.

APPLICATION FILED AUG. 1, 190e.

Patented Mar. 10, 1914.

2 SHEETS-SHEET 1.

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E. N. TRUMP. CONCRETE MACHINE.

APPLIOATION FILED AUG. 1, 1906.

' 1,089,883. Patented, Mar. 10, 1914.

2 BHEBTB-BHEET 2,

'UNITED STATES PATENT OFFICE.

EDWARD N. TR'UMP, 0F SYRACUSE, NEW YORK, ASSIG-NOR TO THE SOLVAY PROCESS COMPANY, OF SOLVAY, NEW YORK, A CORPORATION OF NEW YORK.

CONCRETE-MACHINE.

Specification of Letters Patent.

Patented Mar. 10, 1914.

Application filed August 1, 1906. Serial No. 328,660.

To aZZ whom t may conce/rnv Be it known that I, Enwano N. TRUMP, a citizen of the United States, residing at Syracuse, in the county of Onondaga and the materials when in the dry state, a thorough and proportionate moistening of the mixed materials when in such a position that all parts thereof are accessible to the water, combined with a further mixing, a filial and complete mixing of the wetted materials by agitating them in a mixing trough, and means whereby the discharge of materials from the mixing trough continues after the stoppage of the supply thereto.

My invention comprises means for causing separate streams or sheets of the materials of predetermined proportions, to fall together in an unconined and continuous mass to a common mixing trough, and means for discharging water in converging sprays or jets against the mass while the same is falling to the mixing trough in such a way as to secure a thorough wetting or meistening of the materials without any washing away of the soluble portions thereof.

Referring to the drawings z-Figure 1 is a vertical section on line wof Fig. 3. Fig. 2 is a detail of the water tank and float valve. Fig. 3 is a horizontal section on line fl/-g/ of Fig. 1. Fig. 4 is a detail of the spraying pipes with the parts adjacent the jets in section. of the spraying pipes, as on line s-z of Fig. 4; the scale being somewhat enlarged, showing the materials falling between the spraying pipes. l I

Similar numerals refer to similar parts throughout the several views.

The mechanism for discharging the various materials such for instance as are used Fig. 5 is a cross section` in making concrete is fully illustrated and described in Patent No. 830,543, dated Sept. 11, 1906, to James B. Ladd and me. For example, the receptacles 1, 2 and 3 are secured together by the arms 4, 5 and 6 and are all supported and rotate upon vthe stationary shaft 7. Receptacles 1, 2 and 3 are formed by the vertically extending cylinders 8, 9 and 10 and the horizontally extending tables 11` 12 and 13 which are secured to the rotating structure supported by the shaft 7 as is clearly shown in Fig. 1. The annular rack 14 on the underside of table 11 is adapted to cooperate with the beveled gear 15. Shaft 24 is driven from any suitable source of power not shown. Beveled gear 15 is driven by shaft 24 through gear wheels 36 and 37. 36 is normally an idler on shaft Q4, but adapted to be rotated by the shaft 24 by the manually operative clutch member 38 feathered on the shaft Q4, and controlled by the hand lever 39 pivoted to the stationary framework at 40. The operation of the beveled gear 15 causes the rotation of said receptacles 1, 2 and 3. The knives or deflectors 1G, 17 and 18 are suitably mounted upon a post 19 secured to the stationary framework or easing of the machine and are adapted to have a limited rotative movement to change their angular positions respectively with respect to the radii of the cylinders. These knives or defiectors serve to cause a discharge of material from each receptacle and over the edge of each table so that. said materials will fall in adjacent and substantially parallel streams. The required adjustment of the dcfiectors is secured by the cooperation of the arm 34, extending beyond the axis of the deflectors, but. integral therewith, and the threaded bolt 35, see Fig. 3. That is to say, the free end of arm 34 has a swiveled engagement with a groove or collar on the bolt 35, which is threaded in the stationary framework of `the machine. so that by turning the bolt in either direction the deflector is moved to change its angular position with respect to the radius of the cylinder, in one direction toward the radius, and in the other direction away therefrom. This is all described in my said Patent No. 830,543. By this adjusting mechanism the feed from each receptacle is regulated, as such adjustment secures the required amount of deflection of material for each rotation of the receptacle.

Assuming cylinder 1 to contain broken stone, cylinder 2 sand, and'cylinder 3 cement; as these materials are discharged over the edges of tables 11, 12 and 13, they fall in streams or sheets at first separate and then commingling and falling in a common mass. It will be understood that the particles of broken stone from the bottom table are larger and heavier than the particles of sand from the middle table and that the latter particles are larger and heavier than the particles of cement from the top table. The 'common mass of mixed materials falls f through opening 2O of the stationary casing,

between spraying pipes 21 and 22 and into mixing trough or receptacle 23.

The pipes 21 and 22 are supplied withwater from a common supply pipe 26, connected with the reservoir 27. This reservoir is maintained lled to a constant height by the float valve 27 as shown in Fig. 2. The supply pipe 26 is provided with the two cocks 28 and 29 for the purpose hereinafter to be described. The pipes 21- and 22 extend horizontally below the receptacles 1, 2 and 3, and are provided with series of oppositely disposed horizontally arranged apertures 30. IThese apertures are so located that the water will issue therethrough in downwardly .inclined converging streams or jets toward and against the material as the same `passes between said pipes 21 and 22, as indicated in Fig. 5 of the drawings. The extension of the jets 30 along the pipes 21 and 22 corresponds substantially to the width of the talling streams of material. j The cocks 28 and 29 servethe followingpurposes: 28 is adapted to adjust the flow of water to a desired relation with the volume or rate of feed of the material to be moistened thereby, so that when this adjustment is once secured it may remain undisturbed while the other cock 29 may be used simply for the turning on or oil' `of the fiow of water. Cock 28 is provided withthe usual handwheel for manual operation. Cock 29 is provided with the le- 'ver 41 connected by rod 42 with hand lever 39, so that when the hand lever is operated to throw the clutch 38 into engagement'with gear 36 to cause the rotation of the receptacles 1, 2 and 3 the ow of water is also started, and similarly when lever 39 is operated to disengage the clutch 38 to stop the rotation of the receptacle and consequently the feed of materials the flow of water is also stopped. The revolving paddles 25 may continue in operation to clean out the trough.

The float valve 31 in tank 27 serves to maintain the water in the tank at a constant spect to discharge of material, is secured a I thorough, eiiicient, even and constant wetting or moistening of every particle of material discharged from the cylinders 1, 2 and 3 into the trough 23. The streams of water discharging in opposite direct-ions against the opposite sides of the falling streams of material serve to meisten the same evenly without washing away any of the more soluble Vportions of material, such for instance as the cement. 'llhis is extremely important in that the three materials are moistened and fall together in the proportions which are always maintained constant and which are found to result in concrete of the most reliable character. as they fall into trough 23 are still further agitated by the knives or members 25 on the rotating shaft 24. These knives or members have a slightly angular disposition to agitate and mix the material falling into the trough, and also to move .it in the direction of the arrow out of the open end or discharge opening 32.

As above stated, shaft 24 is adapted to continue its rotation after the stoppage of the supply of moistened materialsto trough 23.- This feature of my invention is important as it insures the immediate cleaning out of the mixing trough and prevents the delivery of its contents in a dry or unsuitable condition as would be the case if the mixed materials were permitted to remain in the trough until the delivery thereto of the next mass of materials.

From the above description it will be seen that the materials pushed over the edge of the three revolving tables of equal diameter, fall togetherin parallel streams, and that,

from the edge of the lowest table to the re-` ceptacle 23, there is a-free unconned vertical fall of the stream of materials. The distance of said fall being a substantial one, and suiicient for the purposes of the moistening device above described.

It will be understood that this material is not moistened after it is received by the receptacle 23, nor while it is confined. in any receptacle, one of the features of the i1i`ven- The mixed and moistened materials tion being that the material is moistened,

while it is unconfined in the atmosphere.

What claim is 1. In a concrete mixer, the combination of means for proportionately feeding the ingredients, said means adapted to feed the same in freely falling substantially parallel streams, and means in transverse line with and located on opposite sides of said streams for spraying said streams of material while the same are falling unconiined.

2. In a concrete mixer, the combination of `same are falling uneonfined, and a mixing means for proportionately feeding the inreceptacle having means thereinfor mixing gredients, said means adapted to feed the the material thus moistened.

same in freely falling substantially parallel EDWARD N. TRUMP. 5 streams, meansin transverse line with and Witnesses:

located on opposite sides of said streams for H. C. EHLE,

spraying said streams of material While the H. C. Box'roN.

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