US746827A - Machine for handling brick-molds. - Google Patents

Description

PATENTED DEC. 15,1903. N

J. E. GRINDER. MACHINE FOR HANDLING BRIG-K MOLDS.

PA'ITENCITED DEC. 15, 1903.

L E. GRINDER. MACHINE FDR HANDLING BRICK MOLDS.

APPLICATION FILED MAR. 23. 1903.

' 2 sums-sum 2.

NO MODEL.

vented certain new and useful Improvements 0 parts when a mold'is being relieved of its Patented i fiecember i 5, 1903.

PATENT OFFICE.

JOSEPH ED GRINDER, OF WASHINGTON, DISTRICT OF COLUMBIA.-

MACHINE FOR HANDLING BRlCK-MOLDS.

SPECIFICATION forming part of Letters Patent No. 7d6,827, dated December 15, 1903.

Application filed March 23, 1903.

1'0 (2,66 whom it may concern.-

Be it known that I. JOSEPH ED GRINDER, a citizen of the United States, residing at Washington, in the District of Columbia, have inin Machines for Handling Brick-Molds; and I 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 appertains to make and use the same.-

This'iuvention relates to improvements in molds for brick or the like in combination with an apparatus for relieving the mold of its charge of clay.

In the manufacture of brick from wet clay considerable difliculty has been experienced in removing the block of clay from the mold without disfiguring it. It is of the utmost importance that the green brick beremoved with a constant and uniform parallel movement; otherwise the faces of the brick will be outv of line.

It is the purpose and object of this invention to provide a particular form of mold having a plunger which when filled and it is desired to relieve it of its charge it is placed on a car with appropriate abutments to compress the mold and force the brick therefrom to the car in such a Way as to preserve its continuity.

Furthermore, it is the purpose of-this invention to provide a car of peculiar construc-' tion to readily receive the mold to permit of its being conveniently handled.

Many other objects and advantages will be hereinafter referred to and be particularly pointed out in the claims.

I In the drawings, Figure 1 is a perspective view of my improved apparatus. Fig. 2 is a side elevation illustrating the position of the charge and showing a modified system of levers for operating the movable abutments. Fig.3 is a cross-section on the line A A. Fig. 4: is a detail perspective view of the car. Fig.- 5 is a detail perspective view of the mold.

The same numerals refer to like parts in all the figures. r

1 represents a frame composed of a base 2, uprights 3 8 cross-bars 4, and sills 5. A pair of rods or tracks 6 connect the cross-bars 4, and mounted on these tracks is a car 6 gle-levers 15 and 16 by links 21.

adapted to be moved back and forth. The

Serial No. 149,116. (lilo model.)

car consists of a platform 7 and a rocking shelf 8, hinged at 9 to the platform, and it has on its front end a ledge 10. The shelf is hinged a short distance from the front of the platform in order that it may be tilted in an Fig. 1. The uprights 3* extend up beyond the tracks, and secured to them are stationary projecting abutments 11, which are outsidethe vertical plane of the ends of the car when. the latter is positioned to remove clay from the mold. Immediately under the stationary abutments are vertically movable abutments 12,. guided in suitable ways 13 on the sills 5. The space between the movable abutments is just sufficient for the positioning of the car.

To the lower ends of the stems 14, which carry the abutments 12, are toggle-levers l5, pivoted to similar levers l6,which are pivoted to the base 2. Mounted in bearings 18 on the uprights 3 is a rock-shaft 19, bearing arms 20, which are connected to the pivots of the tog- An operating-lever 22 projects from the rock-shaft 19 upward and inclined position, as shown in to afford a convenient means for lifting the abutments 12.

If desired, the system of levers described may be dispensed with and in lieu thereof other levers may be employed for foot-power,

as shown in Fig. 2. To the ends of the stems 14 are pivoted arms 25, mounted in standards 26 and connected at their opposite ends by links 27, which in turn are connected to arms 28 of a treadle 29, fulcrumed at 30 to the base. Obviously upon the depression of the treadle the abutments 12 will be lifted as with the movement of the hand-lever 22.

The specific form of mold I utilize in carrying out my invention is of vital importance, and I will now proceed to describe it in detail.

The mold may contain as many cells as found convenient and necessary; but fort-he moved and carried to the drying-racks.

placed on the pins 36 and are interposed between the ends 39 and the head-piece 34,which serves to keep the plungers 33 in the bottom of the mold. A series of straps 41 are secured to the mold-frame and loop around the headpiece. These straps limit the movement of the plungers in the cells, the springs acting to force the head-piece against said straps. This insures the depth of the mold being uniform.

In operation the cells are filled with wet clay in the usual manner. Then the mold is carried to the removing apparatus before described and placed on the shelf 8. The shelf has previously been tilted, as shown in the drawings, so that as the mold is placed thereon it will not have to be tilted far enough to dislodge the clay; otherwise a portion of it might become loose and would therefore destroy the continuity of the proposed brick. The mold having been placed on the shelf at the front of the apparatus, it is then turned down on the car, and the latter is slid forward between the abutments, the movement of the car being arrested by contacting with the uprights 3 3 or suitable stops on the tracks, so as to always have a fixed relationship with regard to the abutments that the latter may effectively operate to remove the clay from the cells. The mold thus positioned, the operator grasps the handle 22 and draws it toward him. This movement straightens the toggles, and hence elevates the abutments 12. The space between the shelf 8 and the stationary abutments 11.is such that it is just sufficient to permit the introduction of a mold, so that immediately the abutments 12 are elevated they act on the mold-frame 30 As the abutments 12 continue to rise and as the head-piece 34 abuts against the stationary abutments 11 obviously the molded clay will be ejected from the cells. The molded blocks of clay being now free from the mold and the latter being wholly supported between the abutments 11 and 12, the car 7 is withdrawn again to the front of the apparatus, where the clay-blocks are re- It is of course to be understood that pallets are to be placed on the shelf 8 to receive the clay blocks, that they may be readily and conveniently removed from the car. After-the car is removed the lever 22 is reversed, which lowers the abutments 12, and the mold is removed, to be again filled with clay.

I have described two systems of levers by means of which the abutments may be operated, and it is to be understood that either may be employed.

.My improvement is especially designed with a view of using wet clay. Numerous devices have been devised for handling dry clay in the manufacture of brick, but such constructions are inadequate for molding brick from the wet material. It is of the utmost importance that the plunger be relatively guided to insure a brick of uniform surfaces throughout, and at the same time the said plunger must be limited in its movement when the clay is removed. Furthermore, the mechanism for ejecting the clay must be such as to permit of the laying down of the mold and'its charge without allowing it to fall from the cells, and then the abutments which separate the mold and the clay must of necessity be arranged to lift the mold absolutely parallel with the sides of the brick. All of these various requirements are fully anticipated by my invention.

The improvement also comprehends the employment of a double set of abutments and a car, so that two sets of molds may be operated by a single system of levers.

The invention is simple in construction, durable in character, and possesses decided advantages over the present art.

What I claim as new is- 1. The combination with a mold having a plunger, of a platform adapted to receive the mold, a stationary abutment against which the mold bears, a movable abutment adjacent the opposite side of the mold, and mechanism for operating the movable abutment to force the mold against thestationary abutment to relieve the mold of its charge of clay or the like, substantially as described.

2. The combination with a mold having a plunger, of a car adapted to receive the mold, a stationary abutment, a movable abutment, and mechanism for operating the movable abutment to relieve the mold of its charge of clay or the like, substantially as described.

3. The combination with a mold having a plunger, of a car, a hinged shelf carried by the car which receives the mold, a stationary abutment, a movable abutment, and mechanism for operating the movable abutment to relieve the mold of its charge of clay or the like, substantially as described.

4.. The combination with a mold having a plunger, of a car, a shelf hinged to the car and provided with a ledge, the shelf being hinged to the car a short distance from the edge of the latter whereby the shelf may be tilted to receive the mold, a stationary abutment, a movable abutment, and mechanism for operating the movable abutment to relieve the mold of its charge of clay, or the like, substantially as described.

5. The combination with a mold-frame havinga series of cells, a plunger in each cell, a head-piece carrying the plunger or plungers, bands secured to the mold-frame and adapted to pass around the head-piece to limit the movement of the said head-piece, springs to normally force the head-piece against the bands, a shelf, and mechanism acting on the head-piece and the mold-frame for ejecting the clay from the molds to the shelf, substantially as described.

6. The combination with a mold having a plunger, of a frame composed of standards, sills and cross-bars, tracks connecting the cross-bars, a car adapted to travel on the tracks and having a hinged shelf, stationary abutment-s on the standards, movable abutments working in guides on the sills, and mechanism for elevating the movable abutments to relieve the mold of its charge when the car carrying a mold is placed between the abutments, substantially as described.

-7. The combination with a mold made in sections, a shelf, a stationary abutment, a movable abutment, toggle-levers connected with movable abntments, and a lever for operating the toggles to elevate the movable abutment which relieves the mold of its charge of clay, substantially as described.

8. The combination with a shelf having a ledge at or near one edge, a mold carried thereby and abutting against the ledge, part of the mold being stationary, and movable mechanism adapted to grip the mold for sepnecting the rock-shaft and the toggles,whereby the movable abutments are elevated to relieve the mold of its charge of clay, substantially as described.

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

' JOSEPH ED GRINDER. Witnesses:

L. M. GOTWALD,

JNo. IMIRIE.

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