US295019A - Brick-machine - Google Patents

Description

v2 Sheets-#Sheet 1.

(No Model.)

1..'B. KENNEDY.

Patented Mar. 11.1884.

v N. PETERS. lhdlvLhognpher. Wallington l!A C.

(No Mdelr.) 2 ISheeES--iheet 2Q L.B.KENNBDY.

BRICK MACHINE.

No.295,o19. v Patented Mar.1.1, 1884..

Zinke 72 for:

'UNiTEn STATES PATENT 'Erica LEVIS B. KENNEDY, OFv KEOKUK, TOVA.

BRICK-MACHINE.`

SEECIFICATION forming Apart of Letters Patent No. 95,019, dated March 11, 18.84.

Y Application filed January 31, ISS-1. (No model.)

To aZ whom t may concern:

Be it known that I, LEWIS B'. KENNEDY, a citizen of the United States, residing at Keokuk, in the county of Lee and State of Iowa, have invented certain new and useful Improve ments in. Brick-Machines, of which the followingis aspecification,reference beinghad therein to the accompanying drawings.

My invention relates to improvements in brick machines, which improvementsV are based on patents granted to me as follows: No. 239,611, of April 5, 188i; No. 267,542, of November 14, 1882, and No. 280,316, of June 26, 1883.

The object of my invention is to simplify the construction of the machines mentioned in the above patents, and thereby lessen the cost of manufacture, producing a machine more easily transported, while at the same time the working capacity and effectiveness of the machine is not impaired. i

The machines, as constructed under the patents above named, are provided with a hori- Zontallyrevolving mold-wheel, in which are the usual mold cavities and bottoms, which are acted upon by the lower plungers. The mold-wheel ,being made of metal,is necessarily heavy and requires a great amount of power to rotate it, and, furthermore, great nicety of adjustment is required in order to have the mold-wheel revolve and stop at the proper point, so that the mold and cavities will register with the'upper and lower plungers. Should any of the parts which operate the mold-wheel get out of position, the mold-cavities will not register with the compression-plungers, and as a result some part of the machine is apt to break, thus causing in many instances veXatious delays, .and to obviate these and other difficulties is the obj ect of my invention; and

. to this end Amy invention consists in dispens- `ing with the mold wheel and substituting Referring to the drawings, A A arethe side frames of the maclfine, which are by preference made of the best quality of cast-iron, said framesbeing secured together by the pivots of the operatinglevers, the shafts of the operating-wheels, and by any suitable number of cross-bars, so as to make the frame rigid and solid. The frames A are further braced and held more rigidly to the base by means of the brace-rods B, the lower ends of which are secured to the base of the frames, while the central portions are bent over the trunnions a, and .held in contact therewithby means of screw-nuts on the ends of the brace-rods.

B is the main operating-lever,pivoted in the side frames at c, to the lower edge of which is pivoted the link b, said link being pivoted to theupper plunger, C. The main lever B is connected to the lower operating-lever, D, by means of the connecting rod or bar E, said lever D being pivotedin the side frames, A,- at b, and provided with extensions or arms c, which exert anupward pressure on the moldbottom or lower compression-plunger, F-,whieh will be more fully described hereinafter. The lever B is provided with a counter-weight, and is connected to the main operating-wheel by a slotted bar, H, the lower end of said slotted bar being secured to a crank-arm on the main driving shaft N, or by a wrist -pin to thev wheel M.

. The devices just described, with the exception of the arms c, are essentiallyof the same construction as the devices employed in the patents hereinbefore referred to, and need no further description in this application.

I I are Ythe mold-cavities, formed between the frames A A, in which are located the plunger and mold-bottom F, against the under side of which the arms c rest when the side pieces, d, impinge against the under side,

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of the mold-bottom or under pressure-plan ger, and in the downward movement of the lever D the plunger F is forced up bythe arms c to press and compact the brick, it being understood that at the same time the arms c are exerting their pressure on the mold-bottom or plunger F the upper compression-plunger, K, is being forced down and the brick firnr' ly compacted between the oppositely-moving plungers, andthe clay subjected to an enor mous pressure between these levers of the first order.:7 The plungerFis connected to a pivoted and weighted lever, L, by means of a bar or link, f, said lever being pivotcd to the frame A at y.

To the outer end of the lever L is secured an adjustable weight, M, while the inner end ofthe lever L is provided with a stud or projection, 71, adapted to be struck by a cam-like projection, I1', on the wheel M', which tends to depress the inner end of said lever and raise the plunger or mold bottoms F, so as to eject the brick `from the mold, said brick being pushed off the mold-bottom or lower plunger by devices which will be presently described.

N is the feed-hopper, mounted on a bracket, O, secured to the side ofthe frame in which the clay to be molded is placed.

P is the mold-filler, adapted to slide underneath the hopper X and receive the requisite amount of clay to form one or more bricks therefrom. rlhe mold-illcrP is provided with a eut-off, R, which closes the bottom of the hopper N when the moldiiller is thrust forward to empty its charge of clay in the moldy cavities, as is the common practice in this class of machines. The mold-filler is operated by means of the following devices:

S is the main drivingshaft, to one end of which is secured the band-pulley K', while to the other end is secured a bevel-gear, T, which meshes with a similar wheel, V, secured to the shaft XV, said shaft lV being secured in suitable bearings, and provided at the other end with a wheel, A. rlhe wheel A is provided with a Cam-groove, Yl, the office of which will be more fully hereinafter described.

B is a lever pivotcd at n to the standard C', to the upper end of which is provided the bar D, which connects the lever l with the moldfiller F.

To the lower end of the lever l/ is secured an arm, E, which is provided with a stud, m, which enters the cam-groove I, and by means of which the lever B is rocked back and forth to push the mold-filler over the moldcavities and fill the same with clay. rFhe canrgroove is so formed and the devices operated by it that the moldfiller will be projected over the mold-cavities, time being allowed for the clay to fall into the same, and the mold-filler is then quickly returned, so as not to obstruct the downward passage of the upper plunger.

It will be noticed that when the plungers K and F have exerted their pressure on the brick, when the upper plunger is being raised or withdrawn from the mold that through the instrumentality of the lever L, the lower plunger is raised and forces the brick up, which follows closely and in contact with the upper plunger, so that when the brick and upper plunger are free from the mold the upper'plunger will separate from the brick without disturbing or blistering it, and thus the injurious effect of suction is obviated. Vhen the bricks have been raised to the top of the mold, the incid-filler pushes them off to the opposite side of the machine, from whence they can be removed and stacked in the kiln. At this juncture the lever L is freed from the cam i, and the weight )I causes the lever L to drop, bringing the lower plunger down to the bottom of the mold and allowing the clay from the filler to fall into the molds. By this construction l am enabled to dispense with the heavy mold-wheel which I have heretofore used, making the machine much lighter without diminishing the effectiveness of its working capacity, while at the same time the brick produced in this machine is of a very superior quality.

Having thus described my invention, what l claim, and desire to secure by Letters Patent, is-

l. The levers B and D, with their respective plungers and connecting-rods, arranged and operating in the manner described, in combination with the clay-fecding device located at the side of the machine, as set forth.

2. A brick-machine the upper and lower plungers of which are moved in opposite directions to compress the clay by a single operating lever, as described, in combination with devices, substantially such as described, for charging the clay into the mold and pushing the brick from the eiecting-plungcrs, said devices being located and operated from the side of the machine, as set forth.

3. rlhe lever D, as described, provided with the arms c,in combination with the lower plunger, F, as and for the purpose set forth.

4. rFhe lever L, provided with the adjustable weight M, pivotcd in the frame A,and adapted to be operated by the cam 17, in combination with the lower plunger, as set forth.

ln testimony whereof I have affixed my nature in presence of two witnesses.

LEWIS l. KEINEDY.

lVitnesses:

J. F. SMITH, C. B. HARRTNGTON.

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