US1742555A - Brick press - Google Patents

Description

Jan. 7, 1930. 1.. D. OLIVER 1,742,555

BRICK PRESS Filed Aug. 15, 1927 2 Sheets-Sheet 1 Jan. 7, 1930; L. D. OLIVER 1,742,555

BRICK PRESS Filed Aug; 15, 1927 2 Sheets-Sheet 2 Patented Jan. 7, 1930 UNITED STATES PATENT OFFECE BRICK PRESS Application filed August 15, 1927.

This invention relates to new and useful improvements in a brick press.

One object of the invention is to provide, in a brick press, a novel type of mould, whereby a plurality of brick may be pressed, or moulded, in a unit, with weakened lines along which the unit may be easily broken up into individual brick having roughened, or irregular faces.

Another object of the invention is to provide, in a brick press, a mould having means for forming weakened lines separating the brick, of which a moulded unit is composed so that the unitmav be easily broken up into individual brick, said means being of such disposition as not to interfere with the removal of the moulded unit from the mould. \Vith the above and other objects in view this invention has particular relation to certain novel features of construction, opera tion and arrangement of parts. an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 shows a longitudinal vertical seetional view of the mould taken on the line 11 of Figure 3 and the associated parts of the press.

Figure 2 shows a transverse vertical sectional view thereof taken on the line 2-2 of Figure 1.

Figure 3 shows a plan view of the mould with the cover removed.

Figure 4 shows a longitudinal vertical sectional view of the mould, showing the cover disposed above the mould box, and illustrating the parts in position for discharging the pressed unit from the mould.

Figure 5 shows a per pective vlew of the pressed unit composed of a plurality of brick integrall joined together, and

Figure 6 shows a pers 'iective view of an individual brick produced from said mould.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures. the numeral 1 designates the mould box, of rectangular contour and having the sides 2, 2 and the ends 3, 3. The sides 2 of the mould box have the opposed inside vertical ribs 4, 4,

Serial No. 212,955.

which continue across the bottom 5, of the box, forming the transverse bottom ribs 6. The ends 3 of the box have the inside oppositely disposed end ribs 7 7 and the bottom 5, has a lengthwise bearing slot 8 aligned with the ribs 7.

There is a plunger 9 forming the top or cover for the mould, and which is adapted to fit closely into the mould box and w iose under side has the transverse and lengthwise ribs 10, 11 aligned with the respective ribs 4 and 7.

There is a lengthwise blade 12, adapted to work through the bearing slot 8. The upper edge of this blade is beveled to an edge, as is also the free edges of the ribs 4, 6, 7, 10 and 11. The bottom 5, of the box is fixed to the upper ends of side arms 13, 13 which, in turn, are mounted on the vertically movable table 14, while the mould box 1 is fixed in the frame 15, of the press. The blade 12 is mounted on the coil springs, or other yieldable seats 16, which in turn are supported by the table 14, and normally the sharp edge of said blade projects above the upper surface of the mould bottom 5'with the stops 17, carried by said blade resting against the under side of said bottom.

Fastened to, and depending from the blade 12 are the tubes 18, 18, which extend down through the openings 19, 19, in the table 14. The lower ends of these tubes have the bearing glands 20, 20, screwed therein having central bearings through which the release rods 2-1, 21 work. The upper ends of these rods, within the tubes 18 are enlarged, forming plungers 22, 22 and their lower ends are attached to a stationary part 23. of the press.

In operation the mould box is filled with plastic clay, or other material of which the brick is to be formed and the cross head 24, carrying the plunger is then lowered, by the conventional mechanism of the press, to compact said material. The unit 25, as thus compacted, will have oppositely disposed vertical side grooves formed by the ribs 4 and the aligned top and bottom transverse grooves formed by the ribs 6 and 10; also the length-- wise top and bottom grooves, and the connecting end grooves, formed by the ribs 11, the blade 12 and the I1lOS 7, 7.

lVhen the material is sufiiciently compressed the plunger 9 is elevated and the bottom 5 is raised, by the table 14, until its upper surface is flush with the top of the mould box. As the table is raised the blade 12 will move upwardly with it until the glands 20 contact with the lower ends of the plungers 22 and the upward movement of said blade will be arrested but the bottom will move on upwardly until the compressed unit 25 clears the upper edge of said blade, and said unit may be then discharged laterally from the bottom of the mould box, either manually, or by a suitable automatic mechanism for the purpose with which the press may be equipped.

While I have shown what I now consider the preferred form of the device it is obvious that mechanical changes may be made therein, and equivalents substituted for the parts shown and I reserve the right to make such changes and modifications in the mechanical structure as may be comprehended within the scope of the appended claims.

That I claim is 1. A mould having a vertically movable bottom provided with an elongated bearing means for moving the bottom vertically, a blade working through said bearing and nor-v mally projecting up into the mould, and means for holding the blade stationary as said bottom is moved upwardly.

2. A mould having a bottom, top, side and end walls, forming an enclosure for moulding plastic material therein, means extend ing transversely around the inside of the mould for forming transverse grooves in said compressed material, means for forming longitudinal top and bottom grooves and aligned end grooves in said material, one of said groove forming means being movable out of the groove formed by it. y

3. A mould having a vertically movable bottom, means for moving the bottom vertically, a blade associated with the bottom and projecting into the mould and adapted to form a groove in the material compressed in said mould, said blade being movable with said bottom and means for arresting the movement of said blade to effect its withdrawal from said groove.

4. A mould having a vertically movable bottom, means for moving the bottom vertically, a blade associated with the bottom and projecting into the mould and adapted to form a groove in the material, compressed in said mould, said blade being movable with said bottom and means for arresting the movement of said. blade to efi'ect its withdrawal from said groove, and other means fixed on the inside, walls of the mould for forming top, side and end grooves in the compressed material.

5. A mould having a vertically movable bottom, means for moving the bottom verti-' cally, a blade associated with the bottom and projecting into the mould and adapted to form a groove in the material compressed in said mould, said blade being movable with said bottom and means for arresting the movement of said blade to effect its withdrawal from said groove and other means carried by the mould walls, for forming surface grooves in said compressed material.

6. A mould for forming plastic material, inside projections on the walls of the mould for forming depressions in the material in the mold, one of said projections being movable to permit its withdrawal from the depression formed by it.

7. A mould for forming plastic material, inside projections on the walls of the mould for forming depressions in the material in the mould, one of said projections being movable to permit its withdrawal from the depression formed by it and means for withdrawing said movable projection from its depression.

8. A mould for forming plastic material including a mould box, a movable bottom therein. a plunger opposed to said bottom, inwardly extending means associated with and movable with the bottom, and adapted to form a depression in the moulded material, said means being movable relative to the bottom, to permit its withdrawal from said depression.

9. A mould for forming plastic material including a mould box, a movable bottom therein, a plunger opposed to said bottom, inwardly extending means associated with and movable with the bottom, and adapted to form a depression in the moulded material, said means being movable relative to the bottom to permit its withdrawal from said depression and other groove forming projections on the inner walls of the mould.

10. A mould for forming plastic material including a mould box, a movable bottom therein. a plunger opposed to said bottom, inwardly extending means associated with and movable with the bottom and adapted to form a depression in the moulded material, said means being movable relative to the bottom to permit its withdrawal from said depression, means for elevatingsaid bottom and means to lift the moulded material from said box, and means for retarding the movement of said depression forming means, relative to said bottom, as said bottom is elevated.

In testimony whereof I have signed my name to this specification.

LOTT D. OLIVER.

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