US1729984A - Cement brick and block machine - Google Patents

Description

Oct. l, 1929- A. R. CANFIELD 1,729,984

' I- CEMENT BRICK AND B LOCK MACHINE l Filed Aug. 2,4 1927 4 Sheets-Sheet l' A. R. CANFIELD .m1h,729,9v84 Y CEMENT BRICK AND BLOCK MACHINE Oct. 1', l 92 9'.

, 4 sheaves-shewv 2 Filed Aug. 2, 1927 zo 4 l .5R 1g ZZ A j v"efztor: f f 76 Z917 gzz'el@ Oct; l, 1929. A. R. CANFIELD 1,729,984

CEMNT BRICK AND BLOCK MACHINE A Y 'Filed Aug. 2. 1927 4 Shets-Sheet 5 www l n arneys.

Oct. l, 1.929. A R, CANFIELD 1,729,984

CEMENT BRICK AND BLOCK MACHINE Filed Aug. 2. 1927 4 Sheets-Sheet 4 Patented Oct. l, 1929 .AUDLEY n. CANFIELD, or BooNn, :IOWA

CEMENT BRICK AND BLOCK MACHINE Application nieu August 2, y1921. serial No. 210,193..-

This invention `relates to improvements iny -oement'brick and block machines, .theprilmary object bei-.ng the production ofa machine which ywill meet the demand of brick f and block makers and give :a speedy, simple j and economical all around machine at a 1minimam .of oostfand which will make bricks and blocks of di'erent designs and dimensions. More particularly :this machine is an u improvement upon the cement block machine kset forth in Patent Number 1,050,804, granted-to me on .the 21st .day of January, 1913, and bythe use of which only cement blocks are adapted to be made. By the use of my y invention cement bricks and blocks of superior quality are adaptedto be made easily in large quantity at less cost than heretofore. 'The machine also is easily and quickly convertible for use making eitherbricks or 2o blocks of vdifferent sizes and designs. It gives to the individual contractor and builder a machine by `which he can produce hisown bricks and -blocks-at a minimum of cost.

To these ends, invention comprises the features of construction and combination of parts, hereinafter described and claimed.

Intl-1e accompanying drawings, forming part of this specifica-tion, F-ig. 1 is aperspective vie-w of my invention, showing the parts in Vposition immediately after a group of cement bricks have been molded and the palette `raised 'in readiness to vkremove the group of green bricks from the machine; Fig. 2 is a plan of" my invention when the parts 'are set in Vreadiness to mold a group of' bricks, eX- cepting that the hopper is removed; Fig. 3 lis another plan when the brick ypla-tes and yoke are in superiorposition and the block plates or sides stripped fromthe machine, said yoke beingv partly broken away and in section; Fig.y 4 1s a `vertical vsection on the line '4L-4 of F'ig. 2, the broken line position of the table 4indicating the folding position it is adapted to assume; Fig. 5 isl another vertical section taken onthe line 5-5 of Fig. 2; Fig. 6 isa sidee'lenation of .a .detail showing the spider .elevating .operating handle; Fig., 7 is .an view partly in section of the structure .shown sin. 61; 8 is a section on :the line 4-4 of Fig. 2 of a detail of the structure 4when the brick plates and yoke are 'lowered in readiness for moldingbricks, the palette :andllers being removed; Fig. 9 is asimilar section ito that shown in Fig. 8 when the fbrick plates and yoke are raised into superior, position; Fig. 10 is a section of a detail show-` ing the s'licer handle in lowermost position after-the brick plates have been forced forwardly to perform their 4slicing function; Fig. 11 is a perspective View ofthe ytypical removablebl'ockmolding side pla-te; Fig. 12 is a sectionof a detailshowing a core -in :the block mold for use in molding hollow building blocks, and Fig. 13 is a perspective view of one of the palettes for use whenfa hollow` building block is "molded in the machine.

In thedrawings, A indicates -a base frame of any-'suitable construction, upon the top 10- vofv which are mounted a plurality of side plates forming the front, back and end elements, respectively 11, 112, 13 and 14', of a mold. The-back element 12'is rigidly secured in vertical position, to the base'frameIby bolts 15 and the' remaining side elementsa-re ti'ltably and -detachably' secured to sadbase frame by separable hinge-v connections,

formed by pintles 16 in the top 10 and hinge seats 17 in the lower ends of .arms `18* dei pending from said plates (see Fig. 8). In closed mold forming position all of the side plates are vertical (see Fig. .5) andafter-the moldingv operation the movable side plates tilt outwardly on their hinge connections and spread (see Fig. 9). A palette ormoldboard B, of .any snitablejdesig-n and thickness is vplacedat suitable height .onthe top 10 ofthe frame .betweentlie side plates to produce the bottoml ofthe mold and" upon whichthe block or bricks can be removed fromy .the

machine.' y 1.

Ak horizontal shaft 20 is secured -infa pair of bosses 21, along the outer wall ofthe back plate 12l and upon tliisqshaf-tas `a common anis are ournaled a yokeelement C, agroup of brick platesl), and a' table elementl E;

The yoke lelement isadapted to swingdown into substantially horizontal position, engaging `over cam or draw shoulders 22; resembling reinforcing vertical ribs on `theouter faces of the movable side plates 11,13 andi..

14 and drawing the side plates closed into vertical mold forming position. A pair of arms 28, depending from the yoke, engage the draw shoulders on the front plate l1 in advance of the yok-e proper so that the end and front plate will move together evenly. At end 24 on one side of the yoke C is adapted to strike a stop shoulder 25, projecting from the back plate, to limit the movement and hold the yoke in raised position as shown in Fig. 9. Handles 19 are provided Vfor operating the yoke member.

The group of brick plates D is composed of a plurality of vertical plates extending `forwardly through vertical slots 26 in the front and back plates 11 and 12 and in height corresponding with the width of the cementbricks to be molded on the palette in the machine. The' back ends of these plates are held apart by the spacing blocks 27 and `tied together by the tie bolt 28, which penetrates the plates and spacing blocks. The spacing blocks are slotted at 29 to permit the tie bolts end of the group of brick plates have a series of aligned angle slots 88 (see Fig. 8), opening 'downwardly to receive the shaft 20. The

' inner horizontal portions of these slots per- ;mit of the group of brick plates sliding for a limited distance forwardly and backwardly to assist in freeing the plates from the bricks on the palette without breaking the material from which the bricks in themold cavities have been produced. The group of brick plates is adapted to swing up into substantially vertical position on the shaft 20 `(see Figs. 1 and 8), suitable slots 84 in the table E being provided through which the brick plates turn. The back en'ds of the brick plates strike against the back member of the group of side plates when the brick plates i assume superior position and limit this movement. When at rest in this superior posi- `tion `the shaft 2O is at the inner end of the slots88 (see Fig. 9), and they remain in this position on the shaft after being swung down into horizontal molding position across the mold cavity as shown in Fig.` 8. A handle 85 having two sides 86 and 87 journaled on the shaft 81 andformed with work arms 88 are employed for imparting a stripping movement to the brick plates D. When the brick plates are lowered the work arms 88 engage over the yoke C so that when the lever operating handle 85 is pressed down the brick plates are slid forwardly over the binding.

yoke element C when the group of brick pla-tesis lowered into the mol-d and guide the stripping member into engagement over the yoke member in readiness for the lever handle to hbe pressed down and the brick plates stripped forwardly. Cam disks 41 selectively positioned by binding screws 42 on the sides of the lever arms 86 and 87 are adapted to strike the ends of the adjacent brick plates D and limit the Y'downward and upward movement of said lever arms. Suitable grooves 48 inthe spacing tubing 80 are adapted' to hold the lever members 86 and 87 Vfreelyrso that they may turn without The table element E consists of a plate secured on brackets 45 which are journaled on the shaft 20. Table supporting arms 46, ldetachably engaging a corner ofthe `base support are pivoted at 47 to the brackets 45. By releasing the table supports from the base support tlietable can be lowered or folded from the horizontal to the broken line position shown in Fig. 4. The table may be used for supporting the hopper when not in use or for any other purpose desired.

Arranged in the base frame is the palette lifting mechanism F, which is adapted after each molding and stripping operation to be used for raising the palette bearing the block orbricks into the position shown in Fig. 1, so that the palette can be easily lifted an'c carried from the machine. This lifting mechanism comprises a spider frame com` posed of four vertical thrust rods 51 sliding vertically through guide holes 52 in the top l() of the base .frame and mounted at their lower ends in skeleton frame 58. This skeleton frame has at its oppositeA ends pairs of antifriction guide rollers 54 (see Fig. 5), traveling in vertical channels 55 in the ends of the body frame A. Lifting cams, each ina-de in twopieces 56 and 57 are secured to thesquare lifting shaft 58, said shaft being mounted in bearings 59 which are rotatably supported in the body frame. These cams are-arranged to enga-ge the skeleton frame 58 below antifriction rollers 60 andthrust the rods 5l upwardly. The cam member 57 d.,

of each lifting cam unit is pivoted at its heel end to member 56 bythe bolt 61 and the outer end portions of members 57 are adjustably supportedon members 56 by the stud bolts 62, to align the cam members and thus produce even lifting movement by the spider frame and preventing breaking of the blocks or bricksV molded by the machine.

The upper ends of the thrust'rods are adapt 'fed to engage belowand lift the palette in the mold afterl the molding operation. This movementiis imparted by turning the lifting shaft 58. This lifting shaftv has secured toltilted on pin 64 longitudinally on the lifting shaft 58 and made to engage below a pin 66 on the body frame and holdthe lifting mechanism in superior position with the palette in the mold elevated. The upper ends of the channels 55 are closed to house them and provided with shields 67 to protect the channels and the antifriction rollers 54 from sand, .mortar or other material that might intertere with the movement of the parts.

The plate members 12, 13 and 14 are provided with springs 7() which detachably engage through slotted ribs 7:1 with said membersto spread them and release the molded article or articles when the brick plates D andyoke C are elevated. The lower end of each of said springs 70 is vertically adjustable in a socketmemberk 72 to which it is secured b 1 a bolt 73 passing through a vertical slot r4 (see FigA). Said socket member is adjustably secured to the topl 10- to be selectively positioned on the-base frame by bolt 75 passing through slot 76 in the socket member, thereby permitting theadjustment of the outward tendency of spring 70 (see Fig. l

When filling and tamping molding materialinthe mold cavity or cavities when either molding blocks or bricks, a hopper G may be placed over the top ofthe plate members and held in position by removable pins 76 entering recesses 77 in said members (see Fig. 4). Y

In use, vassuming first that bricks are to be molded i-n the machine, suitable fillers 80 are set between the side plates and a palette -B placed on said fillers, the thickness of the fillers causing the palette to assumea position in the plane of theV lower sides of the bricks to be molded. The yoke C is next swung down into horizontal position, thus engaging1 and closing the side plates tightly together around the fillers and palette. The groupof brick plates D is then swung down into horizontal position by its handles, the hopper G isl next adjusted" over the side plates, and* the mold cavities are then filled anditamped withv molding material. After removing the hopper and scraping any surplus material away from the surface, the stripping' handle 35 is pressed down into the position shown in Fig. l0 and the stripping or horizontal movement thus imparted to the, brick plates. This; lfrees theA plates so that they canbe lifted into superior position away from the molded bricks without diss turbing and' breaking the material'. The yokei's nextraised4V and the side plates are spread automatically by their springs 70; The

handley 63 is'swung tip-and the palette and.

fillers 'thus raised into'the position shown in Fig. 1, whereupon the'handle' is made to engage the pin 66, and lhold the palette and bricksl in superior position, fromY which they i are removed by hand or other means. The

brick plates assume backward position automatically when raised so that when again lowered they are in readiness for the handle 3 5 to again impart the stripping movement when desir.ed.

When the machine is used for molding blocks, the group of brick plates is lifted out of engagement with shaft 20 and removed from the machine..k A palette ris then placed in the mold'cavity either with or without ythe use of a filler according to the design or size of block it is desired to mold. The ma# chine is then used, inthe same manner as for molding bricks excepting without the use of the group of brick plates. It is contemplated to use a number ot different kinds of detachable mold plates,l varying in size and design, Fig. 11 illustrating'only one of man-y forms. It is also contemplated to use-a core 82 (see Fig-l2) in the mold, bolted at 83 to the' base frame, in which event a hollow palette Sty is employed. The machinethus provides a simple and speedy means for use by the individual contractor or builder for making his own buildin-g-r blocks andv bricks, at a minimumof expense.

In accordance with theI patent statutes, I have described the principles olf operation of my inventien togetherwiththe` apparatus which I now consider to representv the best embodiment thereof but I desire to have it understood that the construction shown is only illustratiye and that the invention c'an be carried out by other meansand appliedI to V1. A combined brick andi buildingI block 'L molding machine, comprisingg, in combination, a suitable frame, a plurality of. building block side wall"s`mountedl upon said? frame, part of. said sidewalls beinghingedtoA spread afterthemolding operation, a brick sup*- porting palet-te removably a-rranged between said walls, a'plura-lity-of brick pla-tes between saidv walls and.. above said palette and" adapted to cooperate therewith in molding aI plurality of. bricks, means for supporting; said palette in brick. molding position between said wal-ls, said means being movable to raise saidpalette with the bricks thereonand ar yoke member adapted to close down oversaid hinged'walls to hold them in, block molding position, said yoke member and said brick plates being hingedl on a common, axis whereby they' may be swung'up out of cooperation ,wit-'h' said side walls'.y

2. A combined brick and building block molding machine, comprising, in combination, a suitable frame, a pluralityof building b-lock side walls mounted upon said frame, part of said side walls being hinged to spread after the molding operation, a brick supporting palette removably arranged between said walls and above said palette and adapted to cooperate therewith in molding a plurality of bricks, means for supporting said palette in brick molding position between said walls, said means being movable to raise said palette with the bricks thereon, and` a yoke member adapted to close down over said hinged side walls to hold them in block molding position, said yoke member and said brick plates being hinged on a common axis whereby they may be swung up out of cooperation with said side walls and said brick plates having limited longitudinal slicing movement to assist in stripping the bricks.

3. A brick molding machine, comprising, in combination, a suitable frame, a plurality of side walls mounted upon said frame, a palette disposed between said side walls, a plurality of brick plates disposed between and cooperating with said side walls to mold a group of bricks onsaid palette, said plates being movable upwardly to clear the bricks on said palette and longitudinally to assist in stripping the bricks. 4

4.' A brick molding machine, comprising, in combination, a suitable frame, a plurality of side walls mounted upon said frame, a palette disposed between said side walls, a plurality of brick plates disposed between and cooperating with said walls to mold a group of bricks on said palette, said plates being movable upwardly to clear the bricks on the palette and longitudinally to assist in stripping the bricks and being detachably mounted upon said frame.

5. A brick molding machine, comprising, in combination, a suitable frame, a plurality of side walls mounted upon said frame, a palette disposed upon said frame, a plurality of brick plates disposed between and cooperating with said side walls to mold a group of bricks on said palette, said plates being movable longitudinally while in brick molding position to assist in stripping the bricks and upwardly to clear the bricks, and means for automatically imparting said longitudinal movement to said plates to strip the bricks.

6. A brick molding machine, comprising, in combination, a suitable frame, a plurality of side walls mounted upon said frame, a palette disposed between said side walls, a united group of brick plates disposed between and cooperating with said side walls to mold a group of bricks on said palette, said group of plates being movable longitudinally while in brick molding position and upwardly to clear the bricks, and means for automatically of side walls mounted upon said frame hav i `ing brick plate receiving slots, a palette disposed between said side walls, a united group of brick plates disposed through said slots and across said side walls and cooperating with said side walls to mold a group of bricks on said palette, said group of plates being movable longitudinally while in brick molding position and upwardly to clear the bricks,

and means for imparting said longitudinal movement to said group of brick plates automatically to strip the bricks while they are being raised.

8. A combined brick and building block molding machine, comprising, in combination, a suitable frame, a plurality of building block side walls mounted upon said frame, part oi said side walls being hinged to spread after the molding operation, a brick supporting palette removably arranged between said walls, a plurality of brick plates between said walls and above said palette and adapted to cooperate therewith in molding a plurality oi bricks, means for supporting said palette in brick molding position between said walls, said means being movable to raise said palette with the bricks thereon, a yoke member adapted to close down over'said hinged walls to hold them in block molding position, a 'table extending laterally from said machine and, adapted to fold downwardly, said yoke member, brick plates and table being hinged upon a common axis whereby the yoke and brick plates may be swung up out of cooperation with said side walls and palette and said table elevated, and means for supporting said table in elevated position.

9. A brick molding machine,.comprising, in combination, a suitable frame, a plurality of side walls mounted upon said frame having brick plate receiving slots, a palette disposed between said side walls, a united group of-brick plates disposed through said slots and across said side walls and cooperating with said side walls to mold a group ot A bricks on said palette, said group of brick plates being provided with angle slots near their back ends, and a hinge support detachablyv engaging said group of brick plates through said angle slots, whereby the brick plates have swinging movement and longitudinal movement to strip the bricks molded upon said palette.

10. A combined brick and block molding machine, comprising, in combination, a suity able body trame, a plurality of block molding side walls mounted upon said body frame, part oi' said walls being hinged to spread after the molding operation, a yoke hinged to swing down and engage the side walls and Elf) lli)

hold them closed in block molding position,

' a palette arranged between said side walls, a

spider frame slidable vertically in said body frame and adapted to raise said palette after the molding operation, cam mechanism cooperating with said spider' frame to raise and lower the same, means for operating said cam mechanism, and a plurality of brick plates between said side walls and above said palette and adapted to cooperate therewith to mold a plurality of bricks, said brick plates having angle slots in their back ends being hinged upon said body frame and adapted to swing back away from over the palette and to simultaneously move longitudinally.

11. A combined brick and block molding machine, comprising, in combination, a suitable body frame, a plurality of block molding side walls mounted upon said frame, part of said side walls being hinged to spread after the molding operation, a yoke hinged to swing down and engage the side walls and hold them closed in block molding position, a palette arranged between said side walls, track channels extending upwardly in said body frame, a spider frame slidable vertically in said track channels and adapted to raise said palette after the molding operation, cam mechanism cooperating with said spider frame to raise and lower the latter, means for operating said cam mechanism, and a plurality of brick plates between said side walls and above said palette and adapted to cooperate therewith ih molding a plurality of bricks, said brick plates `having angle slots in their back ends being hinged through said slots upon said body frame and adapted to swing back away from over the palette and.

to simultaneously move longitudinally.

12. A combined brick and block molding machine, comprising, in combination, a suitable body frame,.a plurality of block molding side walls mounted upon said frame, part of said side walls being hinged to spread after the molding operation, ay yoke hinged to swing down and engage the side walls and hold them closed in block molding position, a palette'arranged between said side walls, track channels extending upwardly in said body frame, a spider frame having guide rollers slidable vertically in said track channels and adapted to raise said palette after the molding operation, shielding means over the upperwends of said track channels, cam mechanism cooperating with said spider frame, t0 raise and lower the spider frame, means for operating said cam mechanism, and a plurality of brick plates between said side walls and above said palette and adapted to cooperate therewith in molding a plurality of bricks, said brick plates having angle slots in their back ends and being hinged through said slots upon said body frame and adapted to swing back away from over the palette and to simultaneously move longitudinally.

13. A combined brick and block molding machine,'comprising, in combination, a suitable body frame, a plurality of block molding side walls mounted upon said frame, part of said side walls being hinged to spread after the molding operation, a yoke vhinged to swing down and engage the side walls and hold them closed in block molding position, a palette arranged between said side walls, track channels extending upwardly in said body frame, a spider frame having guide rollers movable upwardly in said track channels and adapted to raise said palette after the molding operation, a shaft journaled in said body frame, cams adjustably carried by said shaft to evenly engage and lift said spider frame, means for turning said shaft, and

a plurality of brick plates between said side walls and above said palette and adapted to cooperate therewith in molding a plurality of bricks, said brick plates having angle slots in their back ends and being hinged through said slots upon said frame and adapted to swing back away from over the palette and to simultaneously move longitudinally.

14, A molding machine, comprising, in combination, a suitable body frame, a plurality of block molding side walls mounted upon said frame, part of said side walls being A hinged to spread after the molding operation, a yoke hinged to swing down and engage the side walls and hold them closed' in block molding position, a` palette arranged between said side walls, track channels extendingupwardly in said body frame, a spi-l der frame having guide rollers movable upwardly in said track channels and adapted to raise said palette after the molding operation, a shaft journaled in said body frame, cams adj ustably carried by said shaft to evenly engage and lift said spider frame, means

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