US430554A - Machine for re-pressing bricks - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

B. J. WILSON.

MACHINE FOR RE-PRESSING BRIGKS, TILES, &o. No. 430,554. Patented June 1'7, 1890.

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(No Model.) 3 Sheets-Sh eet 2.

B. J. WILSON. 4 MACHINE FOR RE-PRES SING BBIGKS, TILES, &c. No. 480.554.

Patented June 17, 1890.

(No Model.) 3 Sheets-Sheet 3.

B. J. WILSON.

MAGHINE FOR RE-PRESSING BRIGKS, TILES, &c.

No. 430,554. Patented June 17, 1890. I

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' ment, the device in which these ends are at UNITE STATES BENJAMIN J \VILSON, OF ATLANTA, GEORGIA.

MACHINE FOR RE-PRESS SPECIFICATION forming part of Letters Application filed March 1 3, 1890- me BRICKS, TILES, aw.

Patent No. 430,554, dated June 17, 1890.

Serial No. 343,811. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN J. WILsoN, a subject of the Queen of Great Britain, and a citizen of Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Re-Press Brick-Machines; and I do hereby declare the following to beafull, clear, and exact description of the inventiomsuch as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon ,which form a part of this specification.

This invention relates to brick-machines, having particular reference to that class of brick-machines in which a brick already formed is given a second pressure to further condense and finish it, which machines are commercially known as re-press brickmachines, the object of this invention being to render such machines more effectual in their operation, practically continuous in the application of the power, and automatic in their action, which dispenses with the former large number of operatives necessary to repress a given number of bricks and also lessens the time necessary for its accomplishtained being hereinafter fully described, and the parts thought to be new in the art pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of the device, and Fig. 2 is a plan thereof, showing the parts in the same relative positions in both figures. Fig. 3 is a detail and side elevation, showing the toggles in the position when the dies are Withdrawn from the mold, and by dotted lines showing the position of the said parts when the dies are in the mold, and also by dotted lines showing the said dies in that position. Fig. 4: is a side elevation of the means of actuating automatically the brick-conveyers. Fig. 5 is a side elevation of the brick-conveyer belt, the sprocket-wheel whereon it is carried, and the guide whereon said belt is supported. Fig. 6 is a section on the line 6 6, Fig. 5, showing the detail of the guides and the joint whereby one section of the conveyer-belt is secured to another.

ing corresponding parts in the several views, A, Fig. 2, is the point where the machine is fed, and B the place wherefrom re-pressed bricks are taken when finished. The frame may be made of any form and design so long as it is adapted to holding the several operative parts and sustain the strains during op eration, the construction shown, however, being one in which two sides are employed tied together at the desired distance apart by the cross-pieces D,for1ning the mold, and P ,which also form stops, as will be hereinafter more fully and clearly explained.

Suitably journaled on the frame is the shaft F, which has tight and loose pulleys f and pinion f, said pinion meshing into spurwheel f carried on shaft f journaled in suitable hearings on the frame, which shaft also carries the pinion f which engages with the spur-gear f 6 on the shaft f which said shaft carries wiper m, as will be further explained in a more appropriate place. The spur-gearf has in one of its arms a wristpin f (best shown in Fig. 3,) on which runs the pitman having slot g, for the purpose of supplying lost motion, as hereinafter set forth, said pitman connecting with the jointpin of the toggle G, which toggle is composed of the members 9 and g, the members g being pivoted on a stationary point g and at the other end by means of the pin of the toggle to the member g", which latter member is pivoted at its other end to the arm g*, which said arm is carried on a shaft g suitably journaled 011 the frame, which shaft also. carries the oppositely-projecting arms 9 and g", to the outer ends of which are pivoted the pitmen g which connect with the cross-heads H, carrying the dies 0, and which said crossheads are actuated by the motion of the toggles. The toggles G are the same as that form of toggles covered by United States patent to me, dated January 17, 1889, Serial No. 376,860, for brick-machines, and form a very desirable construction for the purpose to which they are applied; but I do not confine myself to this particular form of constructi on, as the die-carryin g cross-heads might be actuated in many ways without a departure from the spirit of this invention.

As hereinbefore stated, there are bolted Inthe figures, like reference-marks indicatbetween the side pieces of the frame, holding ICO the same apart and in position and performing other functions, the molds D and crosspieces P, carrying abutments P, said abutments being in the form of lugs projecting one from each side of the piece P at each corner thereof, through which lugs are holes in which work the rods I, forming guides for the cross-head II and carrying on their outer ends the cross-heads J, which said cross-heads carry the dies E, and rods also having longitudinal motion through the holes through the four corners of the mold D, which mold is also bolted to the frame, as mentioned, said rods I thus having firm support in their places and being kept at all times perfectly parallel.

The dies 0 and E are secured to their respective cross-heads by a sufficient number of bolts or screws, and, being easily removable, it is obvious that any dies desired for marking designs or fancy'paneling or other device in the brick may be readily affixed to the cross-heads. If desired, said molds and dies may be supplied with suitable steamheating attachments for setting the surfaces of the brick, preventing any sticking to said parts. The rings K are secured to the said rods I in the desired position by set-screws, their position being governed by the distance which it is desired to pull the dies E into the mold to force out the finished brick, as will be fully understood after a description of the operation of the device; and the distance which said dies E are forced to withdrawin said molds is governed by the time of the abutment of the hubs Z of the wheels L against the abutments P on the cross-piece P, said point hein g adjustable as to place by the screw-threaded portion of the rods I, as shown, perfect unanimity of motion being secured by gearing the said wheels L together, the manner shown being by means of sprocket and chainbelt construction, the four Wheels governing each die being geared in series. This latter adjustment of the die E governs the thickness to which the brick is reduced in re-pressing.

The feeding device (best shown in Fig. 4, in which figure the parts are shown in their normal position, and also shown in Figs. 1 and 2) is constructed as follows,and is automatic in its action: On the shaft f as heretofore mentioned, is a wiper m, which has journaled on a pin projecting sidewise on its outer end a roller 0%, which is by the revolution of the said wiper m on its shaft successively brought into contact with the cam-face of the lever m which lever is pivoted on a stationary pivot m and has a spring m provided its reflex motion cannot be effected by its own gravity in a satisfactory manner. The specific form of lever in shown has a bell-crank form. To this lever m by means of a pivot m is pivoted the pawl m which has a bifurcated free end, a pin m passing from one of the cars so made to the other, which forms the central point of said pawl m with the teeth m 'of the wheel M, the ears m preventing lateral movement of said pawl. The wheel M is carried on a shaft 01, suitably journaled in the frame, for which, together with the following construction, reference is to be had to Figs. 1, 2, and 5. The shaftn has on its ends the bevelgears 11 which engage with the gears n on the shafts a which shafts are carried in journal-boxes 011 the brackets it, one of which is shown in Fig. 5 in side elevation. Other brackets 02 are also provided, on which the said shafts are j ournaled, preventing any withdrawal of the gears n from working contact with the gears of. On the shafts n are sprocket-wheels n, (best shown in Fig. 5,)

said wheel having teeth or projections at desired intervals circumferentially thereof, which teeth have transverse notches for receiving the pivoting-pins n of the belt N, which consists of a series of flat tables pivoted together and having when assembled at each pivotal point a downwardly-projeoting arm a which engages with the guides n, as best shown in Figs. 5 and G.

The operation of this device is as follows: A brick in the proper condition having been placed on one of the tables which compose the conveyer-belt end and having been turned by the intermittent movement of said belt, as hereinafter described, to a pointbetween the dies 0 and E, when the movement of the said belt will cease holding said brick in that position for a suitable length of time, a movement of the spur-gearf in the direction of the arrow, Fig. 3, will straighten the toggle G and force forward the cross-head H, carrying the die 0, which said die will force the brick from its position on the conveyerbelt N into the mold, forcing backwardly the die E, which is carried in the cross-head J on the rods I, which rods have longitudinal motion in their bearings in the mold and in the piece P. This motion of the die E will continue until the hub of the sprocket-wheel shall come into contact with the abutments P, when said motion will cease as regards the die E, and the compression due to the continuation of the forward motion of the die 0 will press the brick to the desired thickness, which thickness is, as heretofore stated, governed by the position on the rods I of the Wheels L. Thecompression being completed, as thus described, and the revolution of the wheel f continued, the toggles will be again bent, and the head H, carrying the dies C, will be withdrawn, and during this motion com ing in contact with the rings K on the rods I impart a like motion to the said rods I and cross-head J, which will force the dies E into the molds and force the brick out of the mold into its original position on the table of the belt N, from which it was originally taken, after which, the motion of the wheel f and its shaft f being continued, the wiper no will contact with the lever m causing a revolution to the extent of the distance between two teeth of the wheel M, which, by means of the construction herei nbefore described, will turn the belts N a distance which will bring the succeeding brick thereon to a position from which it can be forced into the mold. As will be seen in Fig. 4, the roller on the end of the wiper m will prevent any recoil of the parts by passing along the straight part of the camface of the lever g It will be seen that in this device the bricks lie on edge on the conveyer-tables, which allows the bricks to be handled edgewise, allowing the hand to more easily take them from the tables without danger of injuring the corners, and the bricks may be for this reason'handled much faster, as only one hand will be required to each brick, whereas two are required ordinarily.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device of the class specified, the gear f, having wrist-pin f the pitman g, having slot g, system of toggle-levers G, shaft g carrying-arms g and g thepitman g ,and a die and brick mold held in suitable guides and frame, all combined, arranged, and opcrating to actuate said die and cause same to remain at rest at its outer limit for the de sired period of time, substantially as specified.

2. In a device of the class specified, the rods I, secured in a frame and movable for a limited distance therein and carrying the die E, the die 0, sliding on said rods I, the collars K, carried on said dies in such a position that they will contact with the die 0 as it is withdrawn from the mold, a suitable mold, and means for actuating the die C, substantially as specified.

3. In a device of the class specified, the rods I, secured in the frame and movable therein, saidrods carrying the die E, the die 0, sliding on said rods 1, and the collars Z, adjustable longitudinally on said rods I, and the abutments P, secured to the frame, the mold D, and means for actuating the dies Cand E.

4. In a device of the class specified, the rods I, secured in a frame and movable for a limited distance therein and carrying the die E, the die C, and the collars L,internally screwthreaded and adjustable by being screwed longitudinally on the said rods I, and being suitably geared together to secure unanimity of motion, and the abutments P, suitably secured to the frame, a mold D, and means for actuating the dies 0 and E, substantially as specified.

5. In a device of the class specified, aframe having ends and sides, the piece P, and the mold D, bolted between and forming stays for the said sides of the frame and forming guides for the rods I, the said rods I, the dies C and E, and means for reciprocating the same, .all combined, arranged, and operating as and for the purpose specified.

6. In a device of the class specified, as means of obtaining an intermittent motion of the belt N, the shaft f carrying a wiper 'm, the lever m suitably pivoted on the frame and carrying a pawl m,engaging with the teeth of a ratchet-wheel M, and means for transmitting the intermittent motion of said ratchet-wheel to the wheels n, carrying a conveyer-belt N, substantially as specified.

7. In a device of the class specified, the combination of the shaft f carrying wiper M, the leverm a pawl m, pivoted thereto and engaging with the teeth of a ratchet-wheel M, said pawl having its free end bifurcated, and downwardly-proj ecting lips m and pins m and means for transmitting the motion of said ratchet-wheel M to the belt N, substantially as specified.

8. In a device of the class specified, the conveyer consisting of the belt N, carried on wheels at, and composed of a series of tables pivoted together and having projections m adapted to ride on the guides 91 secured to the frame, and means for actuating the same,

substantially as specified.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

BENJAMIN J. WILSON. Witnesses:

' A. P. W001), S. M. Wool).

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