US930086A

US930086A - Apparatus for making concrete or cementitious compounds.

Info

Publication number: US930086A
Application number: US45707608A
Authority: US
Inventors: Lemon M Reed
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-10-10
Filing date: 1908-10-10
Publication date: 1909-08-03
Anticipated expiration: 1926-08-03

Description

L. M. REED. APPARATUS FOR MAKING CONCRETE 0R CEMENT moms COMPOUNDS.

APPLICATION FIIIED OUT. 10,.1908.

Patented Aug. 3, 1909. 2

zfffilze'ssea: dyezzionumzw. I cum: 00.. m nlooumm wumovon. A1 A UNITED STATEB PATENT OFFICE.

LEMON M. REED, OF CLEVELAND, OHIO.

APPARATUS FOR MAKING CONCRETE OR CEMEN'IITIOUS COMPOUNDS.

Application filed October To all whom itmay concern:

Be it known that I, LEMON M. REED, a citizen of the United States of America, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Apparatus for Male ing Concrete or Cementitious Compounds; and I hereby declare the following to be a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it pertains to make and use the same. 4

This invention relates to improvements in apparatus for making concrete, mortar and the like, and pertains more especially to ap paratus whereby sand and Portland or hydraulic cement are mixed in theproper proportion and in a dry state and the mixture showered into the body of water or liquid required to complete the production of the desired cementitious mass.

The primary object of this invent-ion is to convey the sand and the cement from different hoppers respectively and to thoroughly mix the said materials while in a dry state over the aforesaid body of liquid and to cause the dry mixture to descend in a shower into said liquid and thereby result in the production of a homogeneous concrete or cem entitious mass.

Another object is to (provide apparatus of the character indicate which is simple in construction and efficient in its operation.

With these objects in view, and to the end of realizing any other advantages hereinafter appearing, this invention consists in certain features of construction, and combinations of parts, hereinafter described, pointed out in the claims, and illustrated in the accompanying drawings.

In the said drawings, Figure 1. is a side view in central vertical section of apparatus embodying my invention. Fig. 2 is a vertical section on line 2-2, Big. 1, looking in the direction indicated by the arrow.

My improved apparatus comprises two hoppers A and B for supplying dry sand 8 and dry Portland or hydraulic cement respectively. The hoppers A and B are arranged side by side and in the same plane horizontally and preferably in contiguity and work D erected upon the floor (1. The hoppers A and B are each provided at the lower end with a downwardly discharging outlet 5.

Specification of Letters Patent.

suitably supported from stationary frame Patented Aug. 3, 1909.

10, 1908. Serial No. 457,076.

Two laterally spaced parallel rotary conunder the outlet of the hoppers A and B respectively. Preferably the conveyors E and l are operatively mounted on correspondingly arranged shafts e and f, respectively, which are supported from the stationary framework D. The conveyers E and F are each provided with peripheral chambers 6 which are spaced circumferentially of the re speotive conveyer and are arranged to suecessively communicate with and receive material from the outlet 5 of the superimposed or adjacent hopper during the rotation of the said conveyors.

A spur-gear 7, which is operatively mounted on the shaft e at one end of the shaft, meshes with a corresponding spur-gear 8 operatively mounted on the adjacent end of with a driving pulley 10 which is driven by a suitably actuated belt 12 in the direction indicated by the arrow 13 and as required to rotate the conveyors in the direction necessary to feed material toward each other.

Between the two conveyors E and F is arranged a guard 14 which has opposite side surfaces 15 thereof extending from the outlet of the different hoppers respectively downwardly and toward each other circumferentially of the different conveyers respectively and closely approaching each other at their lower ends. Each surface 15 is large enough in dimensions to cover a chamber 6 of the con veyer circumferentially of which the said surface extends and is arranged in closeprox imity to the said conveyor. It will be ob served therefore that the conveyers E and F are arranged in close proximity to each other. By this construction each chamber of each conveyer does not discharge the contents thereof until the said chamber during the rotation of the conveyor has begun to mo ve below the lower extremities of the surfaces 15 which are preferably arranged wholly above the axes of the convey ers, and the arrangement of the chambers 6 of each conveyor is such relative to the arrangement of the chambers 6 of the other conveyor that two chambers of the differentconveyers respectively during the rotation of the conveyers begin to simultaneously discharge the contents thereof under the lower extremities of the surfaces 15 so that the contents of both l of the said chambers begin to mix as soon as l the said chambers during the rotation of the veyers E and F are arranged horizontally the shaft f which is operatively provided conveyers begin to move below the axes of the conveyers and of course below the afore= said lower extremities of the surfaces 15.

Two guards 16 are located a't'the outer side of the different conveyers respectively Each guard 16' extends from the outlet of'the adjacent hopper circumferentially of the adjacent conveyer in the direction opposite to the said receptacle and causing the mixture to descend into a body of water or liquid r contained in the said receptacle winch is, of course, open at the top and closed.

' at the bottom and supplied with the quantity of water or liquid 1" requisite to complete the formation of the cementitious mass to be produced upon the showering of the dry mixture of sand and cement into the said liquid.

The mixing and showering apparatus comprises a vertically arranged tubular casing H which is arrangedbetween the receptacle R and the conveyers E and F. The casing H is suspended by upright links h from the stationary framework D. Preferably each link 72. is pivoted at its lower end, as at L, horizontally and parallel with the crank-shaft to the casing H, and pivoted at its upper end, as at Z, horizontally and parallel with the said shaft to the stationary framework. The casing H is operatively connected by a pitman I with the crank 76 of a crank-shaft K which is arranged horizontally and parallel with the axes of the conveyers and suitably supported from the stationary framework. The crank-shaft K is operatively provided at one end with a sprocket-wheel 17 which is operatively connected by a chain 18 with a considerably diametrically larger sprocketwheel 20 operatively mounted on one of the conveyer-bearing shafts. It will be observed therefore that during the rotation of the conveyers 'to feed material to the mixing and showering apparatus the casing H is rapidly reciprocated in a horizontal plane.

Centrally of the upper end of the casing H is located an inverted T-shaped cross-bar M which is arranged transversely of the said casing and parallelly with the axes of the conveyers. The upwardly projecting central member of the bar M has opposite sides of its upper portion converging upwardly I and meeting at the top of -the bar so as to form two surfaces 21 which slope downwardly and laterally outwardly from the top of the bar,

and opposite sides of the lower portion of the said central member of the bar slope downwardly and laterally outwardly, 'as at 22.

"Eachlaterally and outwardly projecting member m of the lower portion of the bar M has the upper surface of its outer portion sloping, as at 4, upwardly and latera ly out wardly.

The bar M is attached to the casing H in any ap roved manner. The bar M is located central y of the casing H, and the length of the throw of the crank and the relative arrangement of the parts are obviously such therefore that the bar is at the one or the other side of the said space into which the conveyers discharge according as the crank is at the one or the other end of its throw and near the one or the other conveyer according as the bar is at the one or the other extremity of its range of movement.

Two meshed

screens

23 and 23 borne by the casing H are arranged within the upper portion of the casing H and extend and diverge downwardly from under the bar M.

Two downwardly converging meshed screens 24 are arranged under and suitably spaced from the screens 23 and in ositio'nto receive material passing overthe ower ends of the screens 23. The screens 24 are supported from the casing H.

Two downwardly diverging meshed screens .25 borne by the casing H are arranged under and suitably spaced from the screens 24 and in position to receive material passing over the lower ends of the screens 24.

The bar M, the screens, the vibratory screen-support formed by the casing H and the means for actuating the said support are all instrumental in mixing and showering the material conveyed by the conveyers from the hoppers, and it will be observed that the screens are arranged to conduct material,

which is too coarse to pass through the meshes of the screens, in sinuous paths to opposite ends of the receptacle R.

I .lt will be observed that the bar M during the rapid reciprocation of the casing H moves 7 laterally and rapidly in a horizontal plane from the one to the other extremity of its rangeof movement. The bar M materially participates therefore in. a thorough mixing and showering of the materials discharged from the hoppers. The

slo ing surfaces

21, 22 and 4 of the bar tend to ift the materials during the movement of the bar and materially participate in the distribution or showering of the said materials over the screens 23. The sand and cement discharged from the conveyers E and F mix in their passage from the hoppers into the path of the bar M and the bar knocks the mixing sand and material in the one or the other direction according as the bar M moves in the one direction or the other. The mixing materials the said body of liquid results in the formation of a ceme'ntitious mass which is homogeneous and in the best possible condition for use in making cementitious products.

I would also remark that the capacity of each chamber 6 of the conveyer E and the capacity of each chamber 6 of the conveyer F bear the same roportion to each other as the quantities o' sand and cement to be mixed. That is, if one part of cement is to be mixed with three parts of sand, the capacity of each chamber 6 of the conveyer F is one-fourth of the capacity of each chamber 6 of the conveyer E. The conveyers E and F are not only employed therefore in conveying material from the hoppers but in measuring the amount of materia to be conveyed from the hoppers.

receptacle It is replaced by a corresponding receptacle upon the production in the former of a batch of the desired-cementitious mass.

' The process carried out by the a paratus described in this specification is disc osed and claimed in application No. 457,07 5 filed by me in the U. S. Patent Office October 10, 1908.

What I claim is 1. In ap aratus for making concrete, mortar or the ike, the combination, with a receptacle which is open at the top and closed at the bottom and adapted to hold liquid, of a suitably supported bar arranged a suitable distance above and transversely of the said receptacle and having a range of movement laterally over the chamber of the receptacle; vertically spaced meshed screens between said receptacle and the said range of movement; means whereby the said bar is rapidly actuated laterally in opposite directions alternately, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar.

2. In ap aratus for making concrete, mortar or the like, the combination, with a receptacle which is open at thetop and closed at the bottom and adapted to hold liquid, of

a suitably supported inverted T-shaped bar arranged a suitable distance above and transversely of the said receptacle and having a range of movement laterally over the chamber of the receptacle; vertically spaced meshed screens between the said receptacle and the said range of movement; means whereby the said ba is rapidly actuated laterally in opposite directions alternately, and

means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar.

3. In apparatus for making concrete, mortar or the like, the combination, with a receptacle which is open at the top and closed at the bottom and adapted to hold liquid, of a suitably supported bar arranged a suitable distance above and transversely of the said receptacle and ha *ing a range of movement laterally over the chamber of the receptacle, said bar having opposite sides of, its upper portion converging upwardly; vertically spaced meshed screens between the said receptacle and the said range of movement; means whereby the said bar is rapidly actuated laterally in opposite direct-ions alternately, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar.

4. In apparatus for making concrete, mortar or the like, the combination, with a receptacle which is open at the top and closed at the bottom and adapted to hold liquid of a suitably supported inverted T-shaped bar arranged a suitable distance above and transversely of the said receptacle and having a range of movement laterally over the chamber of the rece Jtacle, said bar having opposite sides of the lower portion of its upwardly projecting central member sloping downwardly and laterally outwardly; vertically spaced meshed screens between the said receptacle and the said range of movement; means whereby the said bar is rapidly actuated laterally in opposite directions alternately, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar.

5. In ap )aratus for making concrete, mortar or the like, the combination, with a receptacle which is open at the top and closed at the bottom and adapted to hold liquid, of an inverted T-shaped bar arranged a suitable distance above and transversely of the said receptacle and. having a range of movement laterally over the chamber of the receptacle, said. bar having opposite sides of the lower portion of its upwardly projecting central member sloping downwardly and laterally outwardly and having the upper surfaces of the outer portions of its laterally projecting members sloping somewhat upwardly and laterally outwardly; vertically spaced meshed screens between the said receptacle and the aforesaid range of movement; means whereby the said bar is rapidly actuated laterally in opposite directions alternately, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar.

6. In apparatus for mixing concrete, mortar or the like, the combination, with a receptacle which is open at the top and closed at the bottom and adapted to hold liquid, of

' aforesaid range of movement; means whereby the said bar is rapidly actuated laterally in opposite directions alternately, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the said bar centrally between opposite extremities of the range of movement of the bar.

7. In ap aratus for making concrete, mortar or the like, a receptacle open at the top and closed at the bottom and adapted to hold liquid; a bar arranged over and a suitable distance above and transversely of the said receptacle; a vibratory support for the said bar, which support is movable to actuate the bar laterally; means whereby the said support is actuated to rapidly move the bar laterally in opposite directions alternately; vertically spaced meshed screens borne by the said support and arranged between the said bar and the aforesaid receptacle, and means whereby the constituent materials of the aforesaid mixture are fed into the path of the bar.

8. In apparatus for making concrete, mortar or the like, a receptacle open at the top and closed at the bottom and adaJted to hold liquid; a bar arranged over and a suitable distance above and transversely of the said receptacle; a vibratory support for the said bar, which sup ort is movable'to actuate the bar lateral y; means whereby the said support is actuated to rapidly move the bar laterally in opposite directions alter nately; means whereby the constituent ma terials of the aforesaid mixture are fed into the path of the bar; vertically'spaced screens 5 borne by the aforesaid support and arranged 1 below and at one side of the bar betweenthe aforesaid path and the receptacle, and vertically spaced screens borne by the said support and arranged below and at the opposite 1: side of the bar between the said body of liquid and the said path.

tar or the and closed at the bottom and adapted to ranged over the'said receptacle and supported as required to render it capable of site directions alternately; a bar arranged centrally of the upper end of andsupported means whereby the constituent, materials of the aforesaid mixture are fedinto the path of the said bar.

10. In apparatus for making concrete,

1 top and closed at the bottom and adapted to ho d ranged over the said receptacle and supported as required to render it capable of movement laterally; means whereby the said site directions alternately; an inverted T- LEMON M. REED.

Witnesses:

C. H. Donna, B. 0. BROWN.

9. In apparatus for making concrete, mor

ike, a receptacle open at thetopw 7 hold liquid; an upright tubular. casing ar movement laterally; means whereby the said casing is rapidly actuated laterally in oppo-g from the casing and extending transversely; of the range of movement .ofi'the casing, and

mortar or the like, a receptacle open at the casing is rapidly actuated laterally in opposhaped bar arranged centrally of the upper liquid; an upright tubular casing ar-