US108864A

US108864A - Improvement in brick-machines

Info

Publication number: US108864A
Authority: US
Publication date: 1870-11-01
Anticipated expiration: 1887-11-01

Description

taluni] iaia atnd l x effin.

'and to this end,

'fresh clay while the mold is held stationary.

f MORRIS D, WILLIAMS, 0F DAKOTA, IOL-WA.V

The Schedule referred to in these Letters Patent and mal-:ing part'of the same.

To all whom Iit may concern Bc it known that I, Monms D. WrLLIAMs, of Dakota, in the county of Humboldt and State of Iowa, have 'invented a new and improved Brick-Machine; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable others skilled in the art torwhich' my invention apporta-ins to make and use the same, reference being had to the accom panyin gdrawin g forming part of this specification.

Figure l, sheet 1, is a side elevation of my improved brick-machine, showing the devices for operating the molds and for pressing and carrying oli the bricks.

Figure 2, sheet 1, is a similar view of the opposite side of; the machine, part ot' the pug-mill being broken away to show the interior. l

Figure 3, sheet 1, is a front elevation ofthe machine.

Figure 4, sheet 2, is an edge view of the mold-wheel, detached from the machine.

Figure 5, sheet 2, is a detached side elevation of the same wheel. Figure 6, sheet 2, is a plan view ot-one ofthe molds detached from the wheel, and with the false bottom removed.

Figure 7, sheet'2, is a detached plan view of the temperingand pressing-wheel.

Similar letters of reference indicate corresponding parts in the several figures ot'lthc, drawing.

My invention has for its object to improve the construction and operation ofmachines for pressing bricks;

It consists- First, in the combination ot adjustable false bottoms with the brick-molds', which bottoms arev held stationary in the act of pressing bricks, while the molds lnove, and which are moved to discharge the bricks and receive It consists, secondly, in -the construction of the oscillating platens, whereby they are held in the proper position within the platen-wheel to bear upon the molds as both platen and mold-wheels are rotated.

, It consists, thirdly, in the combination of devices for discharging the bricks and holding the molds in lposition while being filled. f

It consists, lastly, in the construction and combination of various parts ofthe machine, as will be hereinalter described.

In the accompanying dra\v ing- A is the frame of the machine, constructed in the proper form to receive the working parts, and

,B is the pug-mill, mounted upon the frame in the usual manner.

C is the mold-wheel,` mounted upon a horizontal shaft, D, which has its bearings in the side timbers E of the frame. rlhis wheelyissol arranged with relation tothe pug-mill that its periphery shall pass immedil -upon one side, surrounding the shaft D, and its periph- I ery, between the annular plate G and dat side of the wheel, is recessed at regular intervals to receive the brick-molds H, which are provided with 'journals 'i' upon opposite ends, fitting and working within radial slots formed in the annular plate Gr and the dat sideot' the wheel.r These slots are so arranged that when the molds are drawn in.l.heir outer edges shall be within the vwheel a short distance, but'when pushed outward their outer edges shall be Hush with the periphery."

The molds are each formed with a movable false bottom, J, provided with a short stemv or shank, K,

upon its under surface, which extends through an open- Y ing formed centrallyin the bottom of the mold into the recess in the sidel of the wheel, as shown in iig. 5.

Thefalsc bottoms ofthe molds are operated by means A of short levers L, which pass laterally through the dat side of the wheel, .to which they are pivoted in sucha manner as to admit-ot' motion only in lines radiating from the center of the wheel.

- Their outer ends are provided with friction-rollers m, and their inner ends are pivoted to short links n, which, in turn, are pivoted to the. Shanks of the false bottoms. By this arrangement the false bottoms are adapted for independent movement within the molds when the short levers L are operated.

Instead of connecting the inner euds'of the levers to the stems of the false bottoms hy'nieans of the links n,

the latter may be dispensed with and the stems cx-4 tended to connect directly with the levers, after passing through shortguide-strips or blocks aiixed 4to the .wheel within the recess -ashort distance from the annular plate G, as shown at O, fig'. 5.

'.lhe object of either connection is to prevent the circular movement incident to the inner end of the levers from being -coirnnunioated to the false bottoms' during .their movements within themolds, as it is absolutely essential 'thatthey shall movein lines perfectly parallel to the sides of the molds in order to properlv form a brick.

P is the platen-wheel, mounted in rear of and inline with the mold-wheel upon a horizontal shaft, Q, having itis bearings in the side timbers E of theframe.l

This wheel is constructed with a continuous periph'- eral recess, and is provided, at regular intervals, with short radial arms R, projecting a short distance from the periphery to furnish bearings for the journals 0f the platens S.

The mold and platen-wheels are rotated iuopposite Y directions, and the platens are so arranged upon the latter that they shall close the .molds successively,

) molds.

Hthin the pug-mill is arranged a vertical shaft, T, having a series ot' inclined wings or bands, U, .so arranged uponrit as to sweep over the bottom of the mill when the shaft is rotated to temper the clay and force it through the opening in the bottom into the brick- Upon the lower end of the vertical shaft, beneath the bottom of the pug-mill, is secured a beveled gearwheel, W, engaging with a similar wheel mounted upon the shaft ofthe mold-wheel.

From this latter sh' ft motion is communicated to the platen-wheel through the medium of gear-wheels XY, mounted respectively upon said shaft and the shaft of the platen-wheel.

Z1 is an endless belt or apron arrangedupou trans-y verse shafts immediately beneath the mold-wheel to receive the bricks and discharge themfrom the machine.

Motion is communicated 'to this apron by means of a small gear-wheel, A', upon the shaft B', engaging with the gear-wheel X, as fully shown in fig. 1.

By the application of suitable power to the sweep G', affixed to the vertical shaft T, the mechanism' above described is putin motion.

Where steam or water is used, however, the sweep may be dispensed with and the poweralixed to the shaft of the mold or platen-wheel.

The operation is Vas follows:

rlhe machine being set in motion 'the mold and platen-wheels rotate toward eachother.

One of the molds being under the opening in the the bottom of the pug-mill is filled with clay by the rotating vancs V, and Vwhile `*being filled-its outer edges are held up flush wth the periphery of the wheel O, by means of segmental guides, D', suspended from the under side ofthe frame upon each side of the wheel (l, and upon whichthe journals fiof the molds rest.

This operation insures the complete filling of the molds, from the fact th'at while they are being'forced out the false bottoms are held stationary against the main bottoms. 4 n

ThisA is accomplished by'means of the levers L, `whose outer-ends rest upon acam, E', ailixed to the frame of the machine outside the wheel C, as shown in iig. 1, while the molds are being lled.

As the wheel 0 continues torotate the filled-.molds `and pressing-platens are brought together, the latter resting upon the edges of the molds between the flanges of the wheel C, and covering the entire snrface or month of the molds.

Just before a lled mold reaches the pressing-platen the journals of the former clear the segmental'guidcs D', and the lever L clears the cam As the platen presses upon the mold the latter is forced back into the wheel, and as the falsebottom is stationary during this operation, the clay is Apressed to form the brick between said bottom and the platen; that is to say, the moving molds decrease in depth .to bring the false bottoms nearer to the platen to press the clay.

After the bricks are pressed the ends ofthe levers strike a `cam, F', ailixed to the side of the frame, as shown in fig. 1, mving said levers upward, and the false bottoms out lof thelmolds to discharge the bricks upon the endless apron Z, by-w-hich they are carried out of the machine.

The false bottoms are again carried to the bottoms of the molds to receivea fresh supply of clay by the contact of the lever with the cam E.

The rollers 'in upon the levers are designed to facilitate the passage of the latter over the cam E' by rcducing the friction.

lhe platens are adapted to oscillate in their bearings to conform perfectly to the edges of the molds, and are made a trifle heavier' on one side of the center' to hold them in their proper position to bear upon the molds as both are rotated.

The-main bottoms of the molds are provided with set-screws, Gr', upon the points of which cheff-.ilse bottoms are adapted to rest.

By adjusting these screws the thickness of the bricks is regulated, from the fact that the movement of the molds with'relationto the false bottoms is increased or decreased. As the clay, after being pressed, is liable to adhere to the metallic surface of the false bottoms by atmospheric pressure, and so injure the bricks, I propose to face said bottoms with flannel, or equivalent material, in order to overcome this difficulty.

I also propose to cover the working surfaces yof the platens with a slight coating'of sand for the same purpose, by placing a water-tank, B', and sand-box, 1', in the path of their' rotation, arranged in such amanncr that the platens shall pass first through the witten-as shown in fig.` 1, which will Wet `them suiicently to causethe adhesion of `the sand.

The -shaft of the platen-wheel is made adjustable longitudinally upon the timbers E, by' any suitable means, for the purpose of adjusting the pressure of the platens upon the u iplds to regulate the consistency of the bricks. v

rlhe pressing surfaces of the platens are made slightlyrconvex, sothat they shall leave the surface of the bricks, after pressing, slightly concave, to prevent tlre latter from being forced out of shape by their own gravity when falling from the molds upon the endless apron. i

Having thus described my invention, f What I-claim as new, 'and desire tosecure by Letters Patent, is-V 1. '.Lhe combination, substantially as herein shown, -of the adjustableY false bottoms with the movable molds, for the purpose specified.

2. The convex oscillating platens S, constructed with one end heavier than theother, to holdthem in the proper position within the platen-wheel to bear upon the molds, as both'platen and mold-wheel are rotated', as herein set forth.

3. rlhe combination, with the mold and platenwheels, of the oscillatin g platens S, the movable molds H, and false bottoms J, substantially as described for the purpose specified.A

4. In combination with the'mold-whceL- the movable molds H, and adjustable false bottoms, J, substantially as described, for .the purpose specified. 1

5. 1u combination with the molds H, and false bot- -toms J, the levers L, and cams E F', substantially as described for the purpose specified.

G. Inl combination with the Apivoted molds H, the segmental guides'D', substantially as described for the purpose specified.

7. In combination with the molds H, and false bottoms J, the set-screws G', substantially as described for the purpose specified.

8. The arrangement of the water-tank H', and

sand-box I', with reference to the platens S, substautially as described, for the purpose specified.

M. D. WILLIAMS.

Witnesses E, A. ELLswon'rH, G. H. Fnos'r.