US778344A - Apparatus for the manufacture of cement blocks or slabs. - Google Patents

Description

7 PATENTED DEC. 27, 1904. W. A. G.-WALLER. ARPARAIAUS FORTHEMANUFAGTURB OF CEMENT BLOCKS 0R SLABS.

APPLIOATION FILED JUNE 11,1904.

2 SHEETS-SHEET l.

jutezscsecs.

No. 778.344. PATENTED DEC. 27, 1904.

4 w. A. 0. WALLER. APPARATUSIOR THE MANUFACTURE OF CEMENT BLOCKS 0R SLABS.

APPLICATION FILED JUNE 11, 1904.

2 SHEETS-SHEET 2.

: Wlbmxmr UNITED Y "STATES Patented December 27, 1904.

PATENT OFFICE.

APPAFiATUS FOR THE MANUFACTURE OF CEMENT BLOCKS OR SLABS.

SPECIFICATION forming part of Letters Patent No. 778,344, dated December 27, 1904. Application filed June ll, 1904:. Serial No. 212,106.

'London, England, have invented new and useful Improvements in Apparatus for the Manufacture of Oement Blocks or Slabs, of whichthe following is a specification.

My invention relates to improvements in apparatus for the manufacture of concrete or cement blocks or slabs chiefly designed for use as'partitions in buildings and which are provided in the edges with grooves or channels for the reception of keys or fillets for fiX- ing the said blocks or slabs in position.

In the accompanying drawings, Figure 1 is a side elevation of apparatus for molding-slabs in accordance with my invention; and Fig. 2

is a sectional end elevation of the same, the

section being taken on the line 2 2, Fig. 1.

Fig. 3 is a vertical section on the line 3 3, Fig.

2; and Fig. 4. is a horizontal section on the line 4 4, Fig.3. Fig. 5 is a sectional view illustrating the operation of the apparatus,

and Figs. 6 and 7 are elevations of details. Fig. 8 is a section illustrating another detail.

a a are two end frames or standards, which are braced together by the angle-irons b I) at about the center of their height and by bars or plates 0 0 at the base. On the angle-irons 56 are supported a number of bars d d, Figs. 2, 3, and 5, which form the bottom of the mold-box, which is represented as having three chambers e e 0, each of the bars OZ forming the bottom of one of the said chambers.

ff are the sides of the mold-box, which are hinged at g g to the angle-irons I) b of the frame, so that they can be turned down, and 71 h are the end plates of the mold-box, the said plates each serving as one of the walls of the two outermost mold-chambers e and being mounted upon the horizontal rectangular frame 27, which is designed to be raised and lowered, as hereinafter described, the said frame being guided in its movements by the legs a of the standards a a. This rectangular frame also carries the partitions j j, which are arranged to lie in planes parallel to the ends it h, the said partitions forming, the inner walls of the outermost chambers e e and also the walls of the inner chamber a. These walls and partitions, which are preferably composed of glass sheets mounted in U-shaped metal frames in, tied together at their upper ends by bars if, as shown in Fig. 6, are collectively connected to tie-bars [b3 at the ends for the purpose of holding the walls and the plates rigidly and in absolute parallelism. The side walls ff are provided with fillets it, and fillets la -are also laid upon the bottom plates d 0?,

these fillets corresponding in thickness with the thickness of the"frames 7b to provide for the formation o'f'square corners at the sides of the slabs.

The raising and the lowering of the frame 71 relatively with the bars cl d can be effected in any suitable manner. In the drawings I have represented the said frame as being providedat each end with a rack 70, engaging with a pinlon m on a shaft 12,, carried in bearlngs on the upper ends of the side frames at a, the sald shaft receiving its motion from a crank-handle 0 through the medium of a worm p and wormwheel p..

In using the apparatus the walls and partitions it and j are raised to their highest positi0ns,and the side doors f f are closed against them, as shown in Figs. 1 to 4, .the said doors being secured by any suitable means such, for instance, as turnbuckles Q 9, Figs.

1 and 2. The mold-chambers are then filled with the composition of which the slabs are to be composed. When these chambers have been filled, the upper side of each chamber is closed by a fillet, such as r, Fig.7, which is inserted between the faces of the mold and sup- 1 ported on the fillets if, their end being mitered to lie upon the corresponding mitered ends of the said fillets h These bars r serve to mold the upper edges of the slabs. When the material has sufficiently set in the molds, the fillets r r are taken out, the side doors ff are gether with the walls it and partitions so that the molded slabs'are left supported upon the bottom bars (Z d, as clearly shown in Fig.

0. They can then be lifted off and removed to any suitable position for drying.

The upper edges of the partitions and walls,

opened out, and the framed is lowered, to-

are in some cases roughened or serrated, so that as they are lowered the surfaces of the slabs or blocks will be roughened.

s s are brackets projecting from the side frames 0 a and which serve for supporting a plate upon which the molded slabs can be laid as they are removed from the bars dd. These brackets s 8 may be extended for any desired length and provided with rails, so as to facilitate the removal of the plate and slabs upon it.

In order to form the grooves or channels around the edges of the slabs, ribs it are provided upon the fillets if on the side doors ff and on the fillets If if, and the loose fillets r r are also formed with corresponding ribs When it is required to form the slabs hol low, I advantageously provide the arrangement illustrated in Fig. 8that is to say, I employ rods t, supported on cross-bars on the frame 71, the said rods passing through holes in the lower fillets 7L5 and projecting upward within the chambers 06. By this arrangement when the frame 2' is lowered, as hereinbefore described, to remove the partitions j and walls from the slabs the rods t will also be withdrawn from the slabs leaving holes therein.

I sometimes provide for dropping the walls and partitions It It and if into a tank, whereby the surfaces thereof will be lubricated to facilitate the movement of the walls and partitions from the slabs, as shown in dotted lines in Fig. 2. This, however, is not'neeessary, as lubrication can be otherwise applied, if required.

It is to be understood that, if desired, the walls and partitions h 7L and j j instead of being arranged to move vertically downward through the bottom of the mold-box may be arranged to be moved upward or laterally to draw them off the slabs which remain at rest. It is also to be understood that although I have described the apparatus as applicable for molding partition-slabs it is equally applicable for molding slabs or blocks for other purposes and with or without grooves or channels in the edges. Furthermore, it will be understood that an apparatus can be constructed for molding any desired number of slabs or blocks simultaneously, the three shown in the drawings being merely given as an example.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In apparatus for the manufacture of eement blocks or slabs, a mold comprising among its members vertical side plates, rigidly connected and capable of movement in their respective planes, a stationary bar interposed between said plates and forming the bottom of the mold, movable end plates forming the ends of the mold when in operative position, and a removable top plate, substantially as described.

2. In apparatus for the manufacture of coment blocks or slabs, amold comprisingamong its members vertical side plates rigidly connected and capable of movement in their respective planes, a stationary bar interposed between said plates and forming the bottom of the mold, movable end plates forming the ends of the mold when in operative position, and a removable top plate, said bottom plate, end plates and top plates being provided with a projecting rib for forming grooves or channels in the edges of the block, substantially as described.

3. In apparatus for the manufacture of (-ement blocks or slabs, a mold for making a plurality of the same simultaneously, comprising among its members a plurality of verticall) disposed plates rigidly connected and capable of joint movement in their respective planes, stationary bars interposed between said plates, and forming the bottoms of the moldingehambers, movable end plates each of which when in operation forms the end wall of a plurality of molding-chambers and a top plate, substantially as described.

t. In an apparatus for the manufacture of cement blocks or slabs, a mold comprising among its members, two sideframes provided each with a plate forming one side of the molding-chamber, said frames being connected rigidly for joint movement, a stationary bottom plate between said fral'nes, movable end plates and a removable top plate, said bottom plate, end plates and top plate being provided with fillets, substantially as described.

5. In apparatus for the manufacture of cement blocks or slabs a mold having a lixed bottom, walls or partitions designed to move through slots in the saidbottom, hinged plates for closing the sides of the mold and detach able strips formingthe top of the mold, substantially as described.

6. In apparatus for the manufacture of cement blocks or slabs a mold having a lixed bottom, walls or partitions and one or more rods designed to move through slots or holes in the said bottom, hinged plates for closing the sides of the mold and detachable strips forming the top of the mold,substantially as described.

VlIllJIAdl All'lllUli CAMERON Walddlll.

\Vitnesses:

J OHN E. BOUSFIELI), C. G. Rnnruun.

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