USRE12626E - Supporting-stand and mold for making building-blocks - Google Patents

Description

REISSUED APR. 2, 1907.

v I L. P. NORMANDIN. SUPPORTING STAND AND MOLD FOR MAKING BUILDING BLOCKS.

APPLICATION FILED MAY 31. 1906.

2 SHEETS-SHEET 1,

frwenlar Jar 1J1? lYqrmanola'v-v v No. 12,626. REISSUED APR. 2, 1907.

' L. P. NORMANDIN. P.

SUPPORTING STAND AND MOLD FORMAKING BUILDING BLOCKS.

, APPLICATION FILED MAY 31. 1905 v 2 SHEETS-SHEET 2.

3 tensions for molding curved blocks.

citizen of the United States of America, re-

, Stands and Molds for Making Buildingbuilding-blocks of cement, concrete, &c. and

' cally idjustably secured by screws D, these ing-stand, mold, cores of the mold, and

used to permit the insertion of the cores in tive view of one of the wedge-blocks for "UNITED STATES PATENT OFFICE.

COWHAM, OF JACKSON, MICHIGAN.

SUPPORTING-STAND AND MOLD FOR MAKING BUILDING-BLOCKS.

' OriginalNu. 729,887, dated June 2, 1903. Application To all whom, it may concern: 1

Be it known that I, LEVI P. NORMANDIN, a

siding at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Supporting Blocks, of which the following is a specification, reference being had therein to the accom anying drawings.

T 's invention relates to molds for making it consists in p oviding a mold with a movable bottom an sides and ends, which may be loosened to free the building block when in its plastic state.

The invention further consists in providing a work stand or benchtherefor and means for supporting 'the cores in molding hollow building-blocks and in the means for drawing the cores from the molds, and consists, fur ther, in the peculiar construction, arrangement, and combination of parts, all as more fully hereinafter described, and shown in the accompanying drawings, in which Figure 1 is a side elevation of the supportmeansfor forcing the mold from the cores. F ig. 2 is a pers ctive view of the mold, showing in dotted lines the detachable side and end ex- Fig. 3 is a bottom plan view of the mold; Fig. 4, a section on the line 2 2, Fig. 5, a similar section showing method of emptying mold; Fig. 6, a plan view of the double cam for clamping the mold together; Fig. 7, a vertical section through a mold complete for hexagonal or octagonal blocks. Fig. 8 is a section through the mold, core, and su porting-stand; Fig. 9, a side elevation of t 1e cut-out extension molding hollow blocks; Fig. 10, a perspecsquaring the end of a mold when curved or hexagonal blocks are made;

As shown in the drawings, the supportingstand or work-bench is adaptedto be moved where the building is "to be put up and comprises the four corner-posts A, horizontal members B, and end uprights 0, (provided with vertical slots,) to which the transverse barl), arryin the tapering cores E,is vertibcing only used in molding hollow blocks,

vna building-stone an Specification of Reissued Letters Patent. Reissued April 2, 1907.

for reissue filed May 31 1905- Serial No. 263,192.

I each core being adgustably secured on the bar D to permit of t eir adjustment to correspond with the form of e block.

F is a transverse sha t provided with a le ver-handle G andarms H for forcing the mold I from the cores when the block is LEVI NORMANDIN, OF JACKSON, MICHIGAN, ASSIGNOR TO WILLIAM F.

made, the extension side wall J of the mold being cut out at interva'lsfor the cores, as shown in Fig. 9.

a The mold I conslsts of two members, one comprising the side and the end wall K L and the other the side and end M N, the walls of each member being rigidly secured together a at diametrically-opposing corners of the mold by the screws 0 and the members adjustably secured together at the other cor- 11ers of the mold by the double-acting cams I P, pivotally mounted on the ears Q, extending -through apertures in the side of the mold,

and It represents ears integrally formed with the side of the casing and provided .with an adjusting-screw S, forming avariab e stop acting against the inclined side of the cam P, so that when the cam is de ressedit will tend to force the ends of the mo d togetheras well as the sides, and vice versa, in releasing the mold to free the block. I

- T is an annular ledge or shoulder forming an abutment all around the inside lowered e of the mold and rigidly secured to the, side and end M N of the mold by screws L and at its opposite side K, and end L is provided with lugs and notches V W, cooperatin with lugs and notches V W in the side an end of the mold, so that the side and end Walls K L will have a limited play or lost motion when the cams are released to free the block; The annular ledge T is beveled off at the top, as shown in Figs. 4 and 7, to prevent any material from lodging thereon.

T represents arched transverse connectin -bars integrally formed with the led e T.

is the removable top of the mold, a apted to be held in place by the dogs or clamps X, and Y is the movable bottom, provided on its face with the confi ration of the ordion its under side wit 1 guide-plus, Y, passing through apertures in the bars T, said pins being provided with adjustable steps or nuts at their ends;

Z represents handles at the opposite ends of the mold for lifting the same, and Z are handles at ri ht angles for turnin the same.

extensions to be .used in molding curved wedge-block. Y is'provided, as shown in Fig.

10, to make a square corner for the 'oint, a similar block. being used at each en of the, curved block, and where the end of a square block is exposed the end fthe block may be I finished by inserting a plate of the desired configuration in the end of the mold, which can be removed after the block is discharged from the mold.

. Where the molds are excessively high in molding large blocks, I may use another set of cams above the first to revent the sides from springing, and instea of using the extension-pieces I may form them integral with the sides and ends. 1

In. molding ,veneerblocksI also provide adjusting-screws? in the sides of the mold for maki countersinks in the block for the heads of t e holding-nails to lie in, similar screws also being used to hold the wedge-' blocks place, as shown in Fi 2.

' Having thus fully described the device, it is intended to operate as follows? The mold is placed on the members B, as shown in dot- }e lines in Fig.1, position 1, and the material tamped in the cover is then ut in place and the clamping-dogs X to hold the same in place while being turned bottomside u The 0 raters, one at each end, then lift t e mold y the handles Z and turn it by the handles Z upside down into the position 2, Fig. 1, when the clamping-do are removed, the double-acting cams P re eased, and the side and end walls of the mold freed from contact with the block. The mold is thencarefully hired, and, as the bottom is loose, it follows the block out of the mold, thus insuring a clear-cut sharp edge, as shown in Fig. 5.

Having thus fully described my invention, what I claim is l l. A mold consisting of two members each forming a. side and an end wall of the mold and having a limited movement relative to the other, an annular abutment secured to one of said members, and a movable bottom supported by said abutment.

2; A mold consisting of two members movable relatively to each other and forming the walls of the mold, an annular abutment secured to one of said members near the lower side of the wall and provided with transverse bars having openings, a movable bottom, and guide-pins on said bottom to engage the openings in said bars.

3. A mold consisting of two members each formi a a side and an end wall of the mold, said sir e walls being each formed with an aperture, ears on the end walls to project through said apertures, and cams pivotally secured. to said ears'to engage the side walls. 4. A mold formed of-two members each consisting of a side and an end wall secured together to form a corner of the mold and each formed with an aperture, an car on each side wall adjacent to said a rtures, an ear on each end wall to project t rough said apertures, adjustable stops on the ears on t e side walls,- and cams ivotally secured to said ears on the end we] s and having cam-faces to engage the stops and the side walls.

5. A mold consisting of two'members each forminga side and an end wall of the mold and one of said members formed with notches at its lower ed e, means for uniting said members, an annu ar abutment secured at one side to one of said members and at its opposite side is rovided with lugs to engage the notches in tie other member, and amovable bottom supported by said abutment.

6. A ld consisting of two members each forming side and an end wall of the mold and one of said members being provided with notches in the lower edge of its walls inwardly-extending lugs on the member having the notched edge, an annular abutment secured at one side to one of the members provided with notches at its opposite side to receive the lugs on the other member,- lugs on the abutment to loosely enga e the notches 'in the adjacent member, are ed cross-bars connecting the sides of the annular abutment and having openings, a movable bottom su orted by said. abutment, guide-pins on said bottom extending throu h sai openi e in the cross-bars, sto s on t e out r ends 0 said 'pins, and'means or loosely connectingthe sair-ll1 members and for clamping the same to et er. g 7. A mold having side and end wallsse-' cured together at two opposite corners of the mold and forming two members, means .for'

uniting said members at the other corners of the mold, side extensions curved at their u per sides and detachably secured to the si e' walls of the mold, end extensions detachably secured to the end walls of the mold, a curved llO movable bottom, and a wedge-block to form the end of the molded article.

8. In a machine for molding .buildingblocks, the combination with a supportingstand; of uprights near one end of said stand, a mold having openings in its side wall adjacent to said uprights, a series of core-blocks adjustably secured to the upri hts and adapted to project into the mold openings, 2. rock-shaft journaled in hearings on the stand, arms on said rock-shaft to engage the mold to move the same' to withdraw the cores from the mold, and a lever on the rock-shaft to operate the same.

through said 9. In a machine for molding buildingblocks, the combination with a supportingstand of uprights on said stand provided with slots, a cross-bar provided with slots, bolts passing through the slots in the uprights to adjustably secure the cross-bar thereto, tapering ewe-blocks adjustably secured to said. crossbar by bolts passing through the slots in said bar, a mold supported by the stand ad 'acent to the uprights and beneath the core-blocks, side and end extensions detachably secured to the walls of said mold, one of said side extensions being formed with openings through which the core-blocks project, and means for moving the mold to withdraw the core-blocks.

-10. In a machine for molding blocks, a mold comprising a side for molding the face of the block, an apertured side at an angle to the face-molding side, and a third side, which is removable, a stand upon which said mold is initially supported with its face-molding side down, a core mounted on said stand to project laterally in registration with the aperture of said apertured side and relatively movable .to said mold for insertion and withdrawal through said aperture, and means for aperture,

turning said mold to brin the removable side down whereby the mol ed block may be removed thereon.

11. In a machine for molding blocks, a

mold comprising a face-molding side, an apert'ured side at an angle thereto, and a third side, which is removable, a stand on which said mold is initially supported with said face-molding side down, a core mounted on said stand projecting laterally in registration SIDNEY L.'WILTSE, DANIEL H. PERRY.

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