US2637888A - Apparatus for producing concrete roof tiles - Google Patents

Description

May 12, 1953 A. L. BUSHORE 2,637,888

APPARATUS FOR PRODUCING CONCRETE ROOF TILES Filed May 4, 1950 5 Sheets-Sheet 1 IN VEN TOR ALBERT LOUIS BUSHORE ATTORNEY May 12, 1953 A. L. BUSHORE 2,637,888 APPARATUS FOR PRODUCING CONCRETE ROOF TILES Filed May 4, 1950 5 Sheets-Sheet 2 6 FIG. 2

I FIG?) v INVENTOR. ALBERT LOUIS BUSHORE,

BY 4% VAX x 44,

ATTORNEY May 12, 1953 A. L. BUSHORE 2,637,888

APPARATUS FOR PRODUCING CONCRETE ROOF TILES Filed May 4, 1950 5 Sheets-Sheet :5

FIG. 4 F|G.5

INVENTOR 'ALBERT LOUIS BUSHORE,

ATTORNEY May 12, 1953 A. L. BUSHORE Filed May 4, 1950 APPARATUS FOR PRODUCING CONCRETE ROOF TILES FIG. 8

5 Sheets-Sheet 5 all . IN VENTOR' ALBERT LOUISOB'USHORE,

ATTORNEY Patented May 12, 1953 APPARATUS FOR PRODUCING CONCRETE ROOF TILES Albert Louis Bushore, Riverside, Calif., assignor to Frank J. Hart, San Bernardin0,Calif.

Application May 4, 1950, Serial No. 160,056

The invention consists in a new and useful improvement in apparatus for producing concrete roof tiles. The improved apparatus is so designed that a dense, compact, waterproof tile can be made without hand tamping or hand troweling. A novel form of hopper feeds a wet mix of concrete to a pallet and a blade cuts the concrete, leaving the proper thickness on the pallet, and as the pallet is withdrawn from under the hopper trowels which are mounted adjacent the blade trowel the concrete, producing a waterproof bright finish on the tile. The particularly novel and useful features of the improved apparatus are the peculiar form of the hopper whereby the pallet is properly charged with the material for producing the tiles, the pallet carriage for moving the pallet into and out of charging position relative to the hopper, the blade and trowel carriage co-acting with the pallet carriage whereby the blade moved by its carriage cuts the concrete to the determined thickness for the tiles, and the trowels held by their carriage trowel the material on the pallet moved by its carriage, and the novel combination of said elements in a single, simple, sturdy structure.

While one specific embodiment of the invention is illustrated in the drawings and hereinafter fully described, it is to be distinctly understood that the scope of said invention is not limited to said embodiment but is defined by the claims appended hereto.

In the drawings:

Fig. l is aperspective of the improved apparatus showing a completed tile ready to be removed from the apparatus.

Fig. 2 is a fragmentary side elevation of the base of the apparatus, its casing being removed.

Fig. 3 is a horizontal section on the line 3-3 of Fig. 2, in the direction of the arrows, some of the operating elements which are shown in Fig. 2 being removed.

Fig. 4 is a fragmentary side elevation of the upper portion of the base and the feed hopper.

Fig. 5 is a front elevation of the structure shown in Fig. 4.

Fig. 6 is a vertical section on the line 6-6 of Fig. 5, in the direction of the arrows, the two carriages being shown below the hopper.

Fig. 7 is an enlarged top plan of the blade and trowel carriage, and the blade and trowels.

Fig. 8 is an enlarged top plan of the pallet carriage.

IOWS.

3 Claims. (CI. 25-43) As illustrated in the drawings, the apparatus has a base B (Figs.'2 and 3) comprising four upright posts I on which is mounted arectangular frame F having side rails 2 and 3 and rear and front rails 4 and 5. The upper portion of the base B (Figs. 4 and 5) comprises a rectangular frame F-I formed by upright corner ang1eirons 6 on the rails 2 and 3 and transverse ang1eirons I bolted to th angle-irons 6. Angle-irons 8, normal to and bolted on the angle-irons 7, complete the frame F-I forming the upper portion of the base B. Suitably mounted on the frame F-I there is a feed hopper 9 of novel form. The hopper 9 (Figs. 1, 4 and 5) has downwardly diverging walls B-a which are fixed at their lower edges to the angle-irons I by any suitable means, as by welding, and downwardly diverging walls 9-D similarly fixed'to the angle-irons 8. Each wall 9-!) has a vertically disposed strengthening rib 9-0. The hopper 9 has a flaring intake 9-d projecting upwardly from the walls 9-11 and 9-22. The portion of the hopper 9 below the angleirons I and 8 and within the frame F-I has vertical walls 9-6 projecting downwardly from the lower edges of the walls Q-a and 9-D, and its lower discharge end I0 is disposed centrally of the frame F-I.

The base B has mounted therein a platform II on which is hingedly mounted a swingable platform I2 oscillatable by a head IS on a lever I4 pivoted in the base B. Suitably journaled on the platform I2 there is a shaft l5 having a pulley I 6 driven by a belt I I on a motor M mounted on the platform II. Asuitable fly-wheel I3 is provided on the shaft I5. An eccentric I9 on the shaft I5 co-acts with a roller 20 (Fig. 5) suitably journaled in a suitable support 2! depending from the frame F-I, to vibrate frame F-I and the hopper 9 when lever I4 is rocked to cause head I3 to raise platform !2 to move eccentric I9 to engage roller 20.

The base B has a suitable casing C (Fig. l) enclosing the base B up to the upper edge of the frame F. A casing C-I extends forwardly of the base B and has side walls 22 and a front wall 23. The forward end of the lever I4 projects through a slot 23' in the wall 23 and has a suitable pedal I4 on its outwardly projected end.

Suitably mounted on the angle-irons 6 at the lower end of the frame F-I, there is a pair of angle-irons 24 (Figs. 1, 4 and 5) provided with tracks 25, respectively. The forward ends of the angle-irons 24 are supported on a bracket 26 onthe upper edge of the front wall 23 of the casing C-I. Suitably mounted on the angle-irons G at the upper end of the frame F-I, there is a pair of angle-irons Z'l (Figs. 1, 4 and 5) provided with tracks 28, respectively. Tracks extend outwardly from tracks 26 to dispose carriage 23 for removal of the pallet.

A pallet carriage 29 (Figs. 1 and 8) is slidably mounted on the tracks 25 by means of rollers 30 and has a suitable fram 31 with adjustable screws 3l-a to serve as a holder for the pallet 32 (Fig. 1), and a transverse handle bar 33 at its front end. A spring-pressed latch 34 (Figs. 8 and 9) is provided at the left end of the bar 33 to co-act with a latch socket 35 on the left-hand front angle-iron 6 (Fig. 1) for locking the carriage 29 in its rear position to dispose the pallet 32 under the feed hopper 9.

A blade and trowel carriage 36 is slidably mounted on the tracks 28 by means of rollers 31. (Figs. 1 and 7.) Guard rails 33 (Fig. 1) having inverted U-shaped cross-sections are mounted on the angle-irons G and rollers 39 (Fig. 7) on the carriage 3E co-act with the rails 38 'to retain the carriage 35 on the rails 28. Rollers 40 (Fig. 8) on the carriage 2i! co-actwith the. lower faces ll of the angle-irons 27' to retain the carriage 22 on the rails 25.

The carriage 36 (Fig. 7) has mounted therein by means of bolts 42 a blade 43 and also adjustably mounted therein a pair oi trowels M. Each trowel is has a body comprising a plate Mrs and end flanges A i-b, and a blade M-e of suitable form mounted on the body fi l-o. A rod '45 mounted in the sides 36-61. of the carriage 55 passes through register ng circular openings in the flanges M-b of the trowel M to support "the trowel in the carriage. Bolts '45 "tapped into the sides 36-a pass through slots in the flanges id-l1 of the trowel 44 and nuts 4'! on the bolts 46 fix the trowel M in adjusted relation to the carriage 36.

The carriage 36 has a latch 4.8 (Figs. 1 and 7) pivoted in a bracket 49 on a cross-piece 36-27 of the carriage 36 intermediate the blade '63 and the trowels A spring 58 mounted on the crosspiece 36-!) biases the latch Ml to co-act with a latch socket 5| on the frame F-l (Fig. 5') to lock the carriage 3G in its rear position to dispose the blade under the feed hopperfi. A rod 52 connects the latch 48 with a handle 53 pivoted on the front cross-piece 36-c of the carriage 3%. A spring 54 is interposed between the cross-piece 35-0 and the handle 53 to bias the handle 53 to hold the latch it in operative position.

A spray-head 55 (Figs. '1 and 2) is suitably mounted in the casing C4 and so disposed as to spray water under pressure against the blades 44-0 of the trowels 44 when the carriages 2s and 1-26 are in their rear positions. Water is supplied to the head 55 by a suitable conduit 55 in which there is a suitable control valve '57 operated by a rod 58 which projects through the front wall 23 of the casing (3-! and has on its projected end a presser plate '59. A coil spring so on the rod 58 is interposed between the wall 23 and the plate 59 to bias the rod 58 to normally close the valve 51.

A pair of brackets 6| (Figs. 2 and 3) mounted on the posts I of the base B extend into the cas ing 04 to support a sleeve 62 which is braced by a pair of struts 63 also mounted on the posts I'. Slidably received in the sleeve 62 is a rod 64 on the top of which is mounted a suitable plate '5. The plate 65 is raised from its normal position resting on the upper end of the s1eeve='B2-'hy'a lever 66 pivoted on the base B and connected 0 the rod 54 by a suitable linkage 67. The lever 66 extends through an opening 23 in the front wall 23 of the casing 0-! and has on its outer end a pedal 88.

A lug 68 (Figs. 5 and 6) is mounted in the rear part of the frame F( and so disposed as to support the rear end of the blade 43, So that t blade is in close juxtaposition with the open end H) of the hopper 9 when the carriage 38 is in its rear position. A suitable discharge lip 6 (Fig. l) is mounted on the lower edge of the frame F-i below the tracks 25 to guide any drip- .pings of surplus cement from the frame F-[ into a sump (not shown.) in the casing C-i. A discharge port Mi is provided in the Wall 22 of the casing Ci for draining from the sump the cement and the wash water from head 55 into a y suitable portable receptacle '5 l.

aving described the structural details of the apparatus, its use and operation will now be (lescribed. The carriage 36 having been moved to its rear position, the blade 23 closes the discharge end it of the hopper The hopper 9 is then charged with a suitable quantity of material suitable for producing the tiles. Experience in the actual operation of the improved apparatus has demonstrated that the desirable material consists of mixture of ceincnt and said with Sui-licient water to produce a wet inis: which has a tendency to pack without flowing. The pallet 32 having been disposed in the carriage 23, the carriage 5:8 moved into frame F-l, to its rear position, and fixed in such position by the latch in the socket 335. The carriage 36 is then moved forwardly to remove the blade 43 from under the end ill of the hopper 9. The lever 14 is rocked by depressing the pedal HS and the motor ii/i, being energized, rotates the shaft 15 causing the eccentric (9 to vibrate the frame F and the hopper 9. This vibration causes the material in the hopper g to feed downwardlyonto the pallet 32.

It is to be noted that the hopper 3, as above described, is so designed that its cross-section increases downwardly, which allows the material to move downwardly without packing in the hopper 3. When this form of hopper is vibrated, the wet mix moves downwardly quickly and completely fills all of the depressions in the pallet so that it then packs together filling all voids and permitting no air pockets, and consequently pro ducing a tile so dense that it is Waterproof.

The carriage 35 is then moved rearwardly, causing the blade 43 to move between the material in the pallet 32 and the lower end I ll of the hopper '3. It is obvious that the adjustment of the pallet 32 by screws 3l-a in the carriage 29 determines the desired thickness of the material on. the pallet 32, thereby precisely measuring the quantity of the material desired to form the tile. When the carriage (it is in its rear position, the rear edge of the blade 43 being supported by the lug it is locked in such position by the latch #53 in the socket 5|. The valve 537! is then opened by pressure applied to the plate 59 and Water from the head 55 sprays the blades, 64-0 of the trowels 44 thoroughly Wetting them. The latch 3 of the carriage Z9 is then released and the carriage '29 is drawn forwardly, moving the mold 32 from under the blade 43 and passing it under the trowels M. It is obvious that the adjusted positious-ofthe trowels 44 in the carriage 3-5 are such that the blades 44-o of the trowels M trowel the upper surface of the material on the pallet 32, producing a waterproof bright finish, thereby completing the production of the tile.

When the carriage" 29 carrying the completed tile has reached its forward position (Fig. 1), the pallet 32 with the tile therein is disposed above the plate 65. The lever 66 is then rocked by depressing the pedal 65 thereby elevating the plate 65 which ejects the pallet 32 from the carriage 29, and the pallet 32 with the tile can be removed from the apparatus.

Having described my invention, what I claim 1s:

1. In an apparatus for producing tiles, the combination of a frame; a hopper mounted on said frame, and having a bottom discharge port; a track mounted on said frame and having a portion under said hopper and a second portion extending outwardly from said hopper; a second track mounted in said frame and having a portion under the first-mentioned portion of said first track, a second portion under the secondmentioned portion of said first track, and a third portion extending outwardly from said secondmentioned portion of said first track; a carriage mounted on said first track; a gate for opening and closing said discharge port, mounted on said carriage; a plurality of trowels mounted on said carriage; a second carriage mounted on said second track; a pallet removably mounted in said second carriage; and means for removing said pallet from" said second carriage, the parts being so relatedthat travel of the first carriage causes said gate to open and close said port, and travel of said second carriage disposes said pallet in charging position relative said hopper, automatically trowels the charge on said pallet, and disposes said pallet for functioning of said removing means.

2. In an apparatus for producing tiles, the combination of a frame; a hopper in said frame for material for producing tiles and having a bottom discharge port; means, slidable in said frame below said hopper for opening and closing said port and for troweling the tiles; a pallet slidable in said frame below said means; and means below said pallet for ejecting said pallet from said frame, the charging of material on the pallet, the troweling of the tiles and the positioning of the pallet for ejection being effected by sliding said opening and closing and troweling means, and by the sliding of said pallet.

3. In an apparatus for producing tiles, the combination of a frame; a hopper mounted on said frame, and having a bottom discharge port; a carriage below said hopper and slidable in said frame into and out of two positions of adjustment; a closure for said port carried by said carriage; troweling means carried by said carriage; a second carriage slidable in said frame below said first carriage into and out of three positions of adjustment; a pallet removably mounted in said second carriage; and means for removing said pallet from said second carriage, the parts being so related that the port is closed and opened when said first carriage is in its two positions of adjustment, respectively, the pallet is charged when the port is open and said second carriage in one of its positions, the charge on the pallet is troweled when said second carriage is moved into a second position, and said pallet is disposed for functioning of said removing means when said second carriage is in its third position.

ALBERT LOUIS BUSHORE.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 915,848 Garrison et a1. Mar. 23, 1909 1,347,484 Brown July 20, 1920 1,733,706 Widin Oct. 29, 1929 FOREIGN PATENTS Number Country Date 20,423 Great Britain Jan. 8, 1903 24,699 Norway June 15, 1914

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