US426315A - Brick-machine - Google Patents

Description

(No Model.) Sheets-Sheet 1.'

. a 2 J. W. & R. 0. PENFIELD. BRICK MAGHINE.

No. 426,315. Patented Apr. 22, 1890.

SWZPeIa/li.

(No Model.) 2 Sheets-Sheet 2.

r J. W. 8v R. G. PBNPIELD.

BRICK MACHINE.

No. 426,315. W Patented Apr. 22 1890.

UNITED STATES PAT NT OFFICE.

JAMES WV. PENFIELD AND RAYMOND O. PENFIELD, OF VVILLOUGHBY, OHIO.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 426,315, dated April 22, 1890. Application filed January 13, 1890. Serial No. 336,844. (No model.)

To all whom it may concern:

Be it known that we, JAMES WV. PENFIELD and RAYMOND O. PENFIELD, of Willoughby, in the county of Lake and State of Ohio, have invented certain new and useful Improvements in Brick or Tile Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

Our invention relates to improvements in brick or tile machines; and it consists in certain features of construction and combination of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective. Fig. 2 is an enlarged elevation in section in detail. Fig. 3 is a plan in detail of pitman 9. Fig. 4 is an elevation in detail of locking-frame, hereinafter described. Fig. 5 is aview in perspective showing a portion of cross-bar E.

A represents an upright cylindrical pugging-box, in which operates the upright pugging-shaft B. This shaft is provided in the usual manner with a series of arms 13', for tempering the material and forcing the latter downward, and is provided also with a curved arm B known as a wiper,adapted to force the material through opening a into the compression-chamber O, and a vertically-reciprocating plungeror piston 0 operating in the compression-chamber for forcing the material through grate G into mold D, the latter be ing located directly under the grating and resting on table D. a The empty molds are successively placed upon the table at the rearward of the mold being filled, the empty mold, as it is moved forward to a position under the grate, displacing the mold already filled. For thus shifting the mold is provided rock-shaft cl, having an arm (not shown) that connects with pitman F, for actuating the rock-shaft. Shaft d is provided with rock-arm d, the latter bearing roller 0?, this roller being adapted to engage the rear side of the empty mold.

The mechanism thus far described and the co-operating devices for actuating the movable parts are in common use, and are so well known that it is not considered necessary further to describe them, and more especially as our improvements, hereinafter mentioned, and their relations to other parts of the machine will be readily understood.

I-Ieretofore it was found difficult to supply the compressing-chamber with material, or at least to hold the material in the chamber while piston O was doing its work. To remedy this difficulty we provide as follows: First, the forward section of the bottom plate A of the pugging-box is offset downward, as shown, thus securing a larger opening into the compressing-cl1a1nber than would otherwise be had, whereby the material is more readily forced into the chamber. Resting and operating upon the depressed section of plate A is lateral bar E, this bar having an intermittently -reciprocating movement forward and back, the rearward position of the bar being shown in solid lines and the forward position of the bar being shown in dotted lines, Fig. 2. Vhile the wiper is sweeping past opening a bar E remains at rest in its rearward position, and just as the sweeper has passed the orifice bar E is advanced to its forward position, thus forcing into the com pression-chamber the material that, partly by gravity and partly by the action of the wiper, had been massed in front of bar E, the latter maintaining its forward position and holding the material in chamber C while piston C is doing its work. lVith such construction the difficulty aforesaid of supplying chamber O with material and holding the material in the chamber while such material is being pressed into the mold is entirely overcome. For actuatin g bar E is provided an oscillating frame, (shown more clearly in Fig. 4,) this frame comprising axial trunnions G, side arms G, cross-bar G and depending wrist G ShaftB extends below the pugging-box, where it is provided with crank b, the latter having wrist b, and the two wrists Z) and G being connected by means of pitman g. This pitman is made in two sections or halves bolted together, as shown in Fig. 3, the pitman having a slot g in which operates wrist Z) To and between the prongs of the forward end of the pitman is pivoted box 9 the bore of this box fitting wrist G The upper extremes of arms G are connected, by means of rods e, with the extremes of bar E, rods c extending loosely through holes in the approximately vertical section of plate A. The throw of the crank is greater than is required in actuating bar E; hence, slot- 9 of the pitman, whereby less than the full throw of the crank is transmitted, and bar E is allowed to remain at rest for atime at either extreme of its throw while the lost motion of wrist b in slot g is being taken up.

I-Ieretofore it was found extremely difficult, if not impossible, to prevent the material from being forced into the lower box of the puggingshaft, the presence of such material in the box causing extra weaignecessitatin g frequent repairs and an occasional renewal of the parts. To overcome this difficulty we provide as follows: The lower box H of the pugging-shaft has an upwardly-projecting hub h, and the pugging-shaft is provided directly above the box with collar I, the latter having a depending rim 1;, that extends down outside hub h,

as shown in Fig. 2. This collar is usually shrunk onto the shaft, and hence no material, not even water, can pass between it and the shaft, and material could only enter the box by being forced up between the rim 2' and the hub h, and this could not occur so long as drip-holes a are kept open. As a further safeguard hood J is provided, this hood being shaped approximately as shown and inclosing hub h and collar I, the hood being fastened to plate A and fitting shaft 13 as close as is practicable. The hub 19 of the wiper is chambered to fit over the hood. Plate A has an upwardly-proj eotin g annular flange a, thatis adapted to fit an annular groove 19 of the wiper-hub, and the latter is intended to fit as close as may be to plate A without actual contact with the plate. Some of the softer material will find its wayfpast rib a and will become packed in between hood J and the hub of the wiper; but there is not force enough brought to bear on the material to force it down between shaft B and the hood, and a little muddy water is all that reaches thus far, audit is prevented from entering the box by means of the aforesaid collar and depending rim and is readily disposed of through the drip-hole. WVith such construction there is no difficulty whatever in keeping the material out of the lower box, and hence the wear of this box is reduced to a minimum.

Heretofore the lower-front edge of the compression-box or a plate fastened thereto has served to strike off the molds. lVith such construction it was found extremely difficult, if not impracticable, to secure a compact unbroken smooth top surface on the brick or tile; but, on the contrary, these surfaces were likely to be rough, broken, and fissured. We therefore provide a series of plates 0, overlapping each other shinglefashioned, as shown, thus presenting a series of inclined surfaces that successively engage the material in striking off the mold. The front wall of the conveyer-box is chambered, as shown at c for introducim some lubricant usuall s b 7 y water, and a series of drip-holes o are provided, these drip-holes leading from chamber 0 and discharging into the recesses had between the different plates 0. The first plate 0 strikes off the mold substantially as heretofore; but between the first and second plate 0 sufficient lubricant is introduced to slightly soften the surface of the brick and render the material tougher, and hence the second plate 0 smooths down and compacts the material, and so on, and it is found that with usually three plates 0 the surface of the brick maybe rendered smooth and compact and without a break or fissure in the surface.

What we claim is 1. In a brick-machine, in combination, an upright pugging-box, a compression-chamber, and a so-called wiper, adapted to force the material fromsuch pugging-box into such compression-chamber, a cross-bar operating in the pugging-box and located next below the line of the sweeper, such cross-bar having a reciprocating movement toward and from the compression-box, substantially as set forth.

2. In a brick-machine, in combination, upright pugging-box, wiper, compression-box, and cross-bar having an intermittently-reciprocating movement toward and from the compression-box, substantially as indicated, the bottom plate of the pugging-box having an offset or depressed section adapted to accommodate such reciprocating cross-bar below the line of the wiper, substantially as set forth.

3. In a brick-machine, in combination, upright pugging-box and pugging-shaft, a journal-box for the lower end of the puggingshaft, such journal-box having an upwardlyprojecting hub, and a collar rigidly mounted on the pugging-shaft next above the journalbox, such collar having a depending rim adapted to overlap and inclose the upper section of such journal-box, substantially as set forth.

4. In a brick-machine, in combination, upright pugging-box and pugging-shaft, collar mounted on the pugging-shaft, such collar having a depending rim, a journal-box for the pugging-shaft, such journal-box projecting above the bottom plate of the pugging-box into the concavity of such rimmed collar, and a hood fastened to the bottom plate of the pugging-box, such hood being adapted to fit the pugging-shaft and to inclose the flanged collar and adjacent section of the journal-box, substantially as set forth. I 5. In a brick-machine, in combination, upright puggin g-box and puggin g-shaf t, upwardly-projecting journal-box and overlapping flanged collar, and hood inclosing such collar and opposing j ournal-box section, substantially as indicated, and a wiper mounted on the pugging-shaft next above such hood, such wiper having a chambered hub adapted to inclose such hood, substantially as set forth.

(3. In a brick-machine, in combination, up-

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compression-box, substantially as indicated, of a crank mounted on the pugging-shaft, a swinging frame operatively connected with the reciprocating cross-bar, and a slotted pit- Inan connecting such crank and swinging frame, substantially as set forth.

In testimony whereof We sign this specifica tion, in the presence of two Witnesses, this 4th day of December, 1889.

JAMES W. PENFIELD. RAYMOND O. PENFIELD. lVitnesses:

L. W. PENFIELD, W. W. WALLAoE.

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