US430978A - yaughn - Google Patents

Description

(No Model.) 3 sheets-sheet O. W. VAUGHN. BRICK MACHINE.

No. 430,978. Patented June 24, 1890.

Inn/e 21/0? )1 %Wm'@ Calvin W Vauy/m 7 $5 65/) 2y (/1 to 7 11/01 .UNITED STATES PATENT OFFICE.

CALVIN \V. VAUGHN, OF OUYAHOGA FALLS, OHIO, ASSIGNOR TO THE TURNER,

VAUGHN TAYLOR COMPANY, OF SAME PLACE.

BRICK-MACHINE.

fiPEGIFICATION forming part of Letters'Patent No. 430,978, dated June 24, 1890.

Application filed January 2, 1890. Serial No. 335,606. (No model.)

To all whom it may concern.-

Be it known that I, CALVIN WV. VAUGHN, a citizen of the United States, residing at Guyahoga Falls, in the county of Summit and State of Ohio, have invented a certain new and use ful Improvementin Brick-Machines, of which the following is a specification.

My invention has relation to improvements 111 machines for making pressed brick from IO plastic material, and is especially designed for making brick from prepared silica.

The object of my invent-ion is to produce a new and improved machine for making pressed brick which shall be automatic in its operation, and to embody in such a machine a mold of peculiar construction, an automatic device for charging the mold, means for removing the perfect brick from the mold, apparatus for effecting intense pressure upon the plastic material in the mold, and a combination of devices which shall cause the separate parts to severally cooperate to produce the desired result.

To these ends myinvention consists in the.

2 5 novel and peculiar construction and combination of parts, hereinafter described, and then specifically pointed out in the claims, reference being had to the accompanying drawings, which form a part of this specification.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure l is a front elevation of my improved machine; Fig. 2, a side elevation; Fig. 3, a vertical central section in a plane from front to back; and Figs. 4, 5, and 6, detached detail views of parts of the machine, hereinafter fully described.

Referring to the drawings, A is a bed-plate, which rests on cast side frames B B, and on 4o top of which are bolted two upright cast beams O O, which in turn support a steam-cylinder D. The cylinder D is provided with a valve D, by which the entrance and exit of steam 'at either end can be controlled, and with a piston E and piston-rod E, which latter, for

the purpose of insuring directness of movement, extends through each cylinder-head, where suitable stuffing-boxes prevent the escape of steam. The lower end of the piston- 5 rod E is keyed to a cr0ss-head I, which slides in guides J J, attached to the upright beams The bed-plateA has a plane upper surface and through the center an opening larger in each direction than the brick to be made, about and beneath which opening extends a heavy re-enforced flange A, integral with the bed-plate. This opening in the bed-plate and flange constitute a chamber for the reception of a casting G, which is arranged to enter and fit the chamber with its top flush with the top of the bed-plate and has an outwardlyprojecting flange at its base.

In the casting G is an opening, in which fits and rests a block H, the top of which is flush with the top of the casting and of the size and shape of the desired brick, and from. which extends downwardly a short shaft H.

On top of the bed-plate A is a heavy cast block F, having a central orifice of the size of 7'0 the desired brick placed to register accurately above the block H, and sufficiently exceeding the size of said block to permit it to pass up through it.

The block F,bed-plate A, and casting G are united by heavy bolts, as shown, the blocks F and II constituting the sides and bottom of the brick-rnold. Attached to the cross-head I is a plunger K, of the same horizontal shape and area as the block H, and which is arranged to descend with the downstroke of the piston-rod E and enter the mold F until its bottom is even with the top of said mold, thereby compressing the material in said mold.

The valve D is operated-to cause the down and up strokes of the piston E by a lever L, pivoted to the front of the bed-plate,and connected at one end by a connecting-rod L with a short lever M on the end of the valve-stem. The other end of the lever M is connected by a rod N with one end of a lever N, pivoted to one of the beams G, the other end of which lever eX- tends inward, so as to be engaged by the crosshead I in its upward stroke, and thereby automatically operate the valve D to prevent the further entrance of steam.

The casting G,blocks H and F, and plunger K are made detachable, so that different sets for assorted sizes of brick maybe substituted. xoo

()n the block F, and extending beyond it to the front and rear, is a thin plate F, having upper side flanges on its front part, and an opening of the size of and which registers with the opening in the mold.

Resting on and fitted to slide between the flanges of the plate F is a feeding-box O, which consists of a rectangular box open at the front and having openin gs through the top and bottom near the rear end, exceeding in a front and rear direction the size of the opening in the mold. Inside this box is a sliding partition 0, operated by a hand-screw O, which constitutes with the sides and back of the box an adjustable gage for the charge of plastic material for the mold.

. Oontiguously above and toward the front of the box 0 is a hopper P, open at top and bottom and supported on cross-bars P, attached to the beams G O. J ournaled in suitable bearings on the upper rear part of the side frames B B is a shaft Q, on which is mounted a crank-arm Q, connected with one end of the cross-head I by a link or connecting-bar I. Mounted in alignment with each other on the shaft Q are two slotted crankarms R R, severally connected on opposite sides with the box 0 by connecting-rods R B. By this arrangement the box 0 is caused to slide to the front as the piston makes its downward stroke until its open top registers with the lower end of the hopper, and to slide back with the return-stroke of the piston until its bottom opening is above the opening in the plate F and block F.

Near the lower front of the side frames B B is a shaft S, on the center of which is mounted a crank-arm S, connected with the shaft H by an adjustable pitman S, so that as the shaft S is revolved the block H will be forced up through the block F and plate F and raise the completed brick out of the mold until it is even with the top of the plate F. On the outer end of the shaftSis a slot ted crank-arm T, to which is pivoted a hook T, constantly forced toward the back of the machine by a coiled spring T, and from the inside near the the upper end of which projects a short pin U, Fig. 1.

Attached to the side frame B nearest the hook T is a block V, on the lower face of which is aledge V, through which is a diagonal groove U, and along and outside of which ledge is a guard-bar V, Figs. 2, 4, and 5.

The operation of the various parts is as follows: Assuming the piston to be at the end of the downstroke, the box 0 is then at the front, with its opening beneath the lower end of the hopper P, from which the plastic material with which it has already been charged falls and fills the space between the back of the. box 0 and the partition 0. As the piston rises on the return-stroke, the following operations take place: The upper outer corner of the crank-arm Q in its upward movement engages the hook T and carries it upward and causes, through the connected parts hereinbefore described, the block 11 to rise through the block F and plate F, carrying the completed brick from the mold, until its top is even with the top of the plate F.. The

crank-arm Q and hook T are so arranged in relation to each other that at the moment the top of the block H is even with the upper face of the plate F the hook T is released from the upper corner of the crank-arm Q by the lower corner encountering and pushing forward the body of the hook, and simultaneously by the same movement the pin U passes onto the back end of the ledge V, along which it slides, moved by the lower corner of the crank-arm Q in its continued ascent, until it reaches the groove U, through which it descends, permitting the hook T and block H to fall to their original positions. By this arrangement the block H remains stationary at the end of its upward stroke during a short interval in the movement of the other parts for the purpose of permitting the completed brick to be pushed ofi, as hereinafter described. Commencing simultaneously with the operation last described, the box 0 slides backward, its top closing the lower end of the hopper P, and its back end encountering and pushing the completed brick off from the block H until at the end of the stroke its bottom opening is brought above said block, whence as the block descends the charge .of material falls into the mold. As the piston descends the box 0 is again forced forward to its original position, and the plunger K enters the mold and presses the plastic material therein into form. As thus described the block H is arranged to descend by gravitation alone; but if for any reason it should not do so, I insure its descent by placing on the end of the shaft S opposite, and turned in the opposite direc tion to the crank-arm S, a crank-arm W, Fig. 6, to which is pivoted a rod W, having at its upper end a slot resting on a pin I on the end of the cross-head I. By this arrangement if the block H does not descend by gravita tion it will be forced to do so by the pin I engaging in its ascent the upper end of the slotin the rod W, and thereby causing a partial rotation of the shaft S.

Having thus described my invention, I claim 1. In a machine of the class specified, the combination, with the cross-head I and rockshaft Q, connected by the link I, and crankarm Q, of the box 0, slotted crank-arms R R, and connecting-rods R R to cause said box to move across the line of motion of and simultaneously with the movement of said cross-head, substantially as shown and de' scribed.

2. In a machine of the class specified, the combination, with the cross-head I, plunger K, mold F, and block 11, connected with a crank-arm on the rock-shaft S, of the hook crank-arm Q, connected with said cross-head I and arranged to engage and raise the hook T, substantially as shown and described, and for the purpose specified.

3. In amachine of the class specified, the combination, with the mold and the movable bottom adapted to pass upward through said mold, of a hook, as '1", arranged to raise said movable bottom and having an inward projection or pin, as U, of a crank-arm, as Q, to raise, release, and push forward said hook, and a ledge, as V, to engage said projection U as said hook is released, and a groove, as U, to permit its descent as said hook is pushed forward, substantially as shown and described.

4. The combination,with the hook T, hav- CALVIN IV. VAUGHN.

In presence of- ORLANDO WILooX, C. E. HUMPHREY.

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