US1290862A - Machine for forming paving-brick. - Google Patents

Description

Patented Jan. 14,1919.

2 SHEETSSHEET I.

APPLICATION FILED APR. 8. 1916.

MACHINE FOR FORMING PAVING BRICK.

I. G. ADDERSON, R. H. JAMES & B. F. CAKE.

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J. G. ADDERSON. R. H. JAMES & B. F. CAKE.

' MACHINE FOR FORMING PAVING BRICK.

APPLICATION FILED APR. a. 1916.

1,290,862. Patented Jan.14,1919.

2 SHEETS-SHEET 2. I

W BY ATTORNEY ill JAMES GEORGE ADDERSON, RICH H. JAMES, AND BENJAMIN F. CAKE, F SEATTLE, WASHINGTON, ASSIGNORS 1'0 DENNY-BENTON CLAY & COAL COMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON. V

MACHINE FOR FORMING PAVING-BRICK.

menses.

Specification of Letters Patent.

Patented den. 1d, 1219.

Application filed April 8, 1916. Serial No. 90,012.

To all whom it may concern:

Be it known that we, JAMEs Gnonen An- DERSON, RICHARD H. dermis, and BENJAMIN F. CAKE, citizens of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Machines for Forming PavingBrick, of which the followin is a specification.

This invention relates to improvements in machinery for making paving brick, and is an improvement on the machine illustrated and described in United States application, Serial No. 8 14,5916, filed on June 13, 1914.

One object of this improvement is to pro vide more eficient mechanism for advancing the brick blocks to the corner leveling and lug-forming tools.

A further object of the invention is to provide a rotary cutter adapted to cooperate with other ridge-donning tools to form ridges on the sides of brick blocks.

Still further objects of the invention reside in improvements in the construction of the various details embodied in the ma chine.

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The invention consists in the novel construction of devices for advancing bricks,

and in the adaptation and combination of such devices with cornenbeveling and ridge forming tools, as will be more clearly de scribed in the following specification, illus trated in the accompanying drawings and finally pointed out in the appended claims.

1n the accompanying drawings, Figure 1 is a plan view of a brick-forming machine embodying this invention; Fig. 2 is a view in side elevation of the same; Fig. 3 is an enlarged view in crosssection on broken line 3--3 of Fig 1; Fig. 4- is an enlarged view in cross-sect1on on broken line H of Fig,

1, and Fig. 5 is a view in elevation of a dey tail of the invention.

belt or apron 13 at the feed end of the machine, and another endless driven carrier belt 1 1 at the discharge end of the machine. The feed belt 13 passes around a pulley 15 and the upper portion of such belt passes over a series of idler rollers 16 mounted transversely of the machine near the forward end thereof, certain of such rollers being pro-- vided with annular ridges or collars 17 that form a medial pivot on which brick blocks 18 may be turned as they pass thereover.

lhe brick blocks 18 are preferably sidecut paving bricks of a type more fully described in the prior specification hereinbefore referred. to, and are formed by cutting the same from a column of clay as it issues from a die. lhebricks are then delivered in spaced side-to-side relation onto the belt T13 crosswise thereof, and are carried forv ward thereby over the annular ribs. 17, one

end of each brick-block 18 engaging the rounded end 20 of a guide plate 21 whereby all of the brick blocks are turned lengthwise of the machine, and are caused to proceed in end-to-end relation between the guiderail 21 and a driven belt 22 that passes over pulleys 23, 24 and 25, and is driven at a slightly higher speed than the belt 13. The rounded end 20 of the guide-plate 21 is supported by bracket 19, see Figs. 1 and 2.

The guide-plate 21 is supported from the frame member 10 by adjustably secured brackets 26 and the inner end of such guideplate is yieldingly held in contact with the brick-blocks 18 by a compression spring 27 disposed in a bolt 28 whose head is engaged within a clip 30 onthe guide plate 21 and whose outer end passes through. a bracket 31 on the frame and is threaded to receive a wing nut 32 whereby the position of the end of the guide plate 21 may be adjusted.

33 is a backing plate that is adjustably secured to the frame 10 by brackets 26 and adapted to form a rigid support for'the belt 22 on the side where such belt is in engagement with the moving column of brick blocks 18.

35 is a thin flat metal plate that is secured to the cross loars 12 of the frame in such manner that it forms a bridge between the two carrier belts 13 and 14 over which the brick may pass, the forward end of such plate preferably being tapered to a thin edge and resting upon the belt 13 at the point where such belt passes around the pulley and the oppositeend of such plate resting in a similar manner on the belt 14.

The brick blocks are carried forward on the belt 13 until they are deposited on the yet reached the plate 35.

36 is a guide plate adjustably secured to the frame by brackets 26 and disposed substantially in alinement with the belt 22 near the discharge end of the machine to guide the bricks in the last portion of their travel over the plate 35, and 37 is a similar guide plate that is mounted in a similar manner on the opposite side of the machine, one end of the plate 37 being yieldingly supported by a compression spriiig 27 and bolt 28 of a form hereinbefore described.

Adjacent to the inner end of the plate 21 is a rotatably mounted cutter 38 having two circular blades 40 that are securedbetween plates 41 and are adapted to make two parallel cuts in the sides of a passing brickblock 18, as more clearly illustrated in Fig. 5, and adjacent the cutter 38 are two ridgeforming tools 42 and 43 carried on brackets 44 and 45 that are mounted on, posts 46 and 47, one in front of the other in such manner that the tools 42 and 43 will successively engage the sides of the moving brickblocks and form a ridge of that portion of the material between the cuts made therein by the cutter 38, the tools 42 and 43 difi'ering slightly in shape whereby the ridge will bepartly formed by the first tool and will be finished by the second tool and both of said tools being of substantially the shape illustrated and described in the prior application hereinbefore referred to.

The brackets 44 and 45 are of substan'- tially bell-crank shape and are provided on their outer ends with hooks 48 that engage with tension springs 50 which are adjust-ably connected with a bracket 51 by hook bolts 52 whereby the ridge-forming tools will be yieldingly held in contact with the moving brick, the brackets being adapted to engage with stops 53 to prevent them from being moved inwardly too far by the springs 50.

Corner beveling. knives 54 are adjustably secured in holders 55 that are rigidly mounted on posts 56 at each side of the frame and are adapted to make a shearing inclined out along the upper longitudinal edges of the brick-blocks, thus forming the beveled corners as more clearly illustrated in Fig. 3.

After the column of brick-blocks has passed the corner beveling knives 54, the ridged side edge thereof is engaged by a roller 57 journaled on a vertical axis 58- in'a pivotally mounted frame 60 and yieldingly held in contact with the brickblocks 18 by a helical tension spring 61 that is connected With a fixed bracket 62 by a hook bolt 63, the frame 60 being adapted to engage With a stop 64 to limit the inward movement of the roller. 2'

The periphery of the roller 57 is formed with a plurality of regularly spaced vertical grooves 65 into which the ridge material is impressed to'form lugs as the roller passes thereover, that portion of the ridge between the lugs being flattened into the plane of the side edge of the block by the roller.

In operation, the side-cut brick blocks are deposited on the apron 13 transversely thereof in spaced relation, and are moved forwardly thereby, the ends of the brick blocks successively engaging the curved end 20 of the guide plate 21 and the blocks be ing turned thereby into end-to-end relation and advancedin this manner to the bridge plate 35. When the blocks encounter the end of the plate 35, they will be caused by the friction of the blocks behind and the friction of the belt 22' to slide upon such plate in close end-to-end contact with each other, and will be successively operated on by the cutter 38, the ridge-forming tools 42 and 43, the beveling knives 54 and the lugforming roller 57, and will then be discharged onto the apron 14 and removed to any desired point.

During the time that the blocks are being operated on by the tools above referred to, such blocks are in close end-to-end contact, thus preventing the tools from breaking of chunks of the soft clay from the rear end of the blocks, as would be done if the blocks were spaced apart.

Having described our invention, What we claim, is-

1. A machine for forming brick blocks comprising an endless driven feed apron, an endless driven discharge apron spaced from said feed apron, a plate extending between said two aprons, a spring-pressed guide-plate, and an endless moving belt opposed to said guide-plate and coacting with said feed apron to frictionally engage brick blocks and cause them to be slidably moved on said first named plate.

2. A machine for forming brick blocks comprising an endless driven feed apron, a plate having one end disposed in close proxunity to said feed apron and adapted'to receive brick blocks from said feed apron, a spring pressed guide-plate, and an endless moving belt opposed to said guideplate to frictionally engage brick blocks and coact with said apron in moving said brick blocks on said first named plate.

. 3. A machine of the class described, comprising a carrier belt for brick blocks, a

plate disposed in alinement with said carrier belt and adapted to receive brick blocks therefrom, 'a secondary belt disposed at one side of said carrier belt and said plate, and means yieldingly urged toward the secondary belt forholding brick blocks in engagement with said secondary belt whereby said secondary belt will coact with said carrier belt to slidably advance said brick blocks on said plate.

4. A machine for forming brick blocks including an endless driven feed apron movable in a horizontal plane, an endless driven discharge apron spaced from the end of said feed apron and movable in the same direction in the same plane therewith, a

.fixed plate extending between said two aprons over which brick blocks may be slidably transferred from said feed apron to said discharge apron, a guide plate at 20 one side of said plate and abelt dis osed in a vertical plane at the opposite si e of said plate and coacting with said feed apron to advance brick blocks.

Signed at Renton, Washington, this 24th 25 day of March 1916.

JAMES GEORGE ADDERSON.

RICHARD H. JAMES. BENJAMIN F. CAKE. Witnesses:

LILLIAN A. HANSEN, G. M. CONARD.

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