US8093A - Islaistd - Google Patents

Description

J. GRANT, `or rnovrnnncn, RHODE ISLAND.

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. Specification oflietters Patent No.1 8,093, datedlilVIay 13,185.1.

To all whom 'it may concern.' e

Be it known that I, JOSEPH GRANT, in the city and county of Providence and State of Rhode Island, have invented new and useful Improvements in a i Machine for `Making Bricks, whichI denominate theRotary and Locomotive Brick-Machine; and I do hereby declare that the following is-a full, clear, and exact `description ofthe construction and operation of the same, reference being had to the-accompanying drawings, `forming part ofthis specification, in which# Figurel, is a plan. Fig. 2, is a side elevation Withoneof the propelling wheels removed. Fig. 3, is an end view of the mold i cylinder, Fig. 4 is a transverse vertical section of the machine, seen from the back,

showing themold cylinder in longitudinal section. Fig. `5, is a transverse sectional elevation of the mold and pressing cylinders in part, with hopper attached; appearing as in i operation. "Fig, 6, is a view indetail of a groovedchannel and cam used inwerking the followers. x i i Thesame letters of reference denote similar `parts throughout the several figures.

The nature of my invention consists in the use of two cylinders set horizontally in a suitable framing and revolving in opposite directions, being driven by gearing,n which also propels the machine forward as `the brick is being made. One of these cylinders is fitted with molds, working in which are followers, forming the bottom of the molds, and operatedfby rollers moving `in fixed grooved channels and by cams producing the drop motion. `The second or pressing cylinder is `provided with plates working and fittinginto the molds of the other cylinder, pressing the clay, which is fed, from a hopper above and between the two cylinders, the clay being drawn into the several molds by its own weight and the revolving motion of the cylinders, and the bricks deposited on the ground, orsurface prepared for them, in regular layers or line as the machine moves forward. Aroller in front clears or prepares the ground or surface on which the bricks are to lay. The followers` in the molds are covere with cloth or similar material to prevent the clay or soft bricks from adhering to them, the machine being worked by hand or other power. i

To enable others skilled in the art to make and use my invention, I proceed to describe-'its` construction and` operation.`

A, A, 1s the frame of the machine; B, the

lhopper through which the clay is fed; C, a

leveling roller, serving to carry `the machine, and to clear or prepare the yard for deposit of the bricks.` Itworks in a strap a,

having a `swivel spindle Z ,to admit of the ina-chine being moved about in any direction.

D, D, are traveling" or propelling wheels fitted on the mold` cylinder shaft c, and

turning with it.

f is the mold cylinder keyed fast to the shaft c. Itis madeof iron or other suitable material and has on its circumference or surface spaces d, CZ, cl, forming themolds, the number of molds `isnot limited to two rows as shown in the drawing but will be dependent upon the lengthof the cylinders as well as the diameter, each moldor space d, d, el, being only of thelength of the brick so that the machine may,if required, be constructed to formthree or more layers.

E2, E2, E2, fare followers or plungers working inward forming the bottom of the molds. They are covered on their top with fine cloth e, e, c, and are of length and breadth so as to fit loose in themolds d, ai, d,

in which they move, motion fbeing given to them by the rollers f, f, f, which turn on spindles g, g, g, running through the cylinder E, lengthwise, "passing through slots z', z', z', at both ends. The spindlesg, y, g, are connected to the followers E2, E2, E2, by pieces 71., it, l1., attached to them, through which the spindles g, g, g, pass; the `rollers f, f, f, as the` cylinder E is caused to ref volve, moving iiXed grooved channels F, F, secured to the framing A,\A`;v` the in-A terior of oneof which is seen in Fig.` 6, being positioned with relation to the cylinder E in the manner of an eccentric, one at either end, butdifferng from an eccentric `in their so i being made of a scroll or irregular 4curve for1nat-ion; the rollersffff,` f, traveling in the grooved channels `F, F, cause `the followers E2, E2, E2, to move inthe molds cl, d, d, `the followers at their bottom stroke leaving a space in the` mold equal to or rather exceeding the thickness of a brick and when forced out working nearly to the outer edge of the mold. i

7c, 7e, Figs. 4c and 6, are cams attached to shafts Z, Z, and so positioned and set as to form as many `revolutions for one revolution of the cylinder E', as there are molds in a single row, causing the cams 7c, 7c, one at either end, to strike the rollers f, f, f, two together, that is one at either end, and so on for all the rollers successively. As they assume the position of f', Fig. 6, causing the formed bricks to be shaken from their molds when arriving at a perpendicular position. The bottom of the mold cylinder E', is situated rather more than the thickness of a brick from the ground or yard surface.

Gr, is the pressing cylinder revolving in the opposite direction to the cylinder E', it is keyed on the shaft m. n, n, n, are pressing plates fitted on the circumference or surface of the cylinder Gr, corresponding to the spaces or molds d, d, d, in the cylinder E, into which they fit or press the clay, they are made thicker at the edge first entering the mold, than the finishing or after edge as shown more particularly in Fig. 5.

H, is a handle for giving motion to the machine (but the arrangement may be such that steam or other power may be applied.)

I, is a pinion turned by handle H. It operates a wheel J, on the shaft of which is a pinion N, working into a wheel L, fitted fast to the side of the cylinder G. The wheel L, is in gear with a corresponding wheel M, attached to the cylinder E, the wheel L also drives a pinion N, on the shaft of which are wheels O, O, one at either end, working into similar wheels P, P, that drive pinions Q, Q, (fitted on the cam shafts Z, Z, which they operate.) The relative proportions of these several wheels and pinions are such as not only to obtain additional power but to operate the drop motion formed by the cams 7c, 7c, at a proper time, that4 is to strike the rollers when they assume the position ofV f. Fig. 6, so as to release the brick, and likewise to operate the propelling or traveling wheels which are of a suitable relative diameter, so that the machinewill move at a speed proportioned to the discharge of brick causing the bricks made, to be deposited regularly side by side in layers.

The operation is as follows: Clay being put into the hopper B, the handle H, is made to turn and by wheels and pinions L J, K, L, M, and the cylinders E, G, are made to revolve in opposite directions as shown by arrows Fig. 5, drawing in the clay, partly forced by tis own weight, into the molds CZ, ,(Z el. The pressin plates a, n', n, entering the molds at their thick edge first, press, and together with the molds,

form the brick. The plates n, n, n, leaving the molds at their thin edge, obviate the tendency which the soft brick has of being pressed thinner at the side or edge receiving the last or latest impression. While the cylinders E', G, are performing this operation the machine through means of the propelling wheels D, D, is moving forward and the several followers or plungers E2, E2, E2, are being worked by means of the rollers f, f, f, traveling in the fixed grooved channels F, F, which cause the followers or p-lungers E2, E2, E2, to draw in for receiving the clay, and when the'brick is made to be forced out, and so drive out the brick, which is further released from the mold by the vaction of the cams 7e, lc, driven by the gearing N, O, O, P, P, Q, Q, the cams 7c, 7c, striking the rollers f, f, f, when arriving in the position of f, Fig. 6, and dropping or shaking the brick from the followers which being covered with fine cloth or other similar material are not so liable to retain or cause the soft brick to adhere. The bricks are laid in the yard side by side and in perfect layers in the manner shown in Fig. 5, and in red lines Fig. l, the number of layers being dependent upon the size of the machine or length of the cylinders E', Gr, which, may have one two three or more rows of molds and pressing plates.

This machine therefore not only makes bricks rapidly but of an equal thickness, sound and perfect, and by being locomotive can be moved about in any direction as convenience suggests, laying on the yard in regular order the bricks as made.

What I claim as my invention and desire to secure by Letters Patent is-e l. The form of the pressing plates n, n, n, thicker at one edge than the other, as shown, and for the purpose described.

2. The motion of the followers or plungers E2, E2, E2, by rollers moving in fixed grooved channels F, F, and acted upon by revolving cams 7c, c, producing a drop movement and operating as herein shown and explained.

3. Propelling the machine forward by means of wheels D, D, keyed on the mold cylinder shaft for the purpose of depositing the bricks as made in regular layers for dryino'.

' Jn testimony whereof I have hereunto signed my name before two subscribing witnesses this 21st day of November 1850.

JOS. GRANT. Witnesses:

A. J. HoDGEs, A.. B. CRossMAN.

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