US839842A - Concrete-block mold. - Google Patents

Description

PATENTED JAN. 1, 1907.

J. P. HEGKMAN. CONCRETE BLOCK MOLD.

APPLICATION rninn 00111. 1906.

2 SHEETS-SHEET 1-.

PATENTEDJANJ} 1907.

L P. HECKMAN. CONCRETE BLOCK MOLD. uruonxon 21mm 001.11. 1906.

JOHN P. HEOKMAN, OF ORESTON, OHIO.

CONCRETE-BLOCK MOLD.

Specification of Letters Patent.

iatented. Jan. 1, 1907.

Application filed October 11, 1906. flerial No. 338.382.

To all whom it may concern.-

Be it known that I, JOHN P. HECKMAN, a citizen of the United States, residing at Oreston, in the county of Wayne and State of Ohio, have invented certain new and useful Improvements in Concrete-Block Molds, of which the following is a specification.

This invention relates to new and; useful improvements in molds for forming artificialstone blocks, and it particularly relates to a mold of the type known in the art as gangmold.

The invention aims as a primary object to provide a mold embodying a novel construction and arrangement of separable sides.

The invention aims as a further object to provide means for readily assembling and disassembling the mold for the purposes contem lated.

T e invention also aims to provide an apparatus of the above type which may be readily assembled and disassembled as an entirety and in which access may be readily had to any desired part for the purpose of repairing or removing the same.

The invention finally aims to provide a mold which shall be simple in construction, inexpensive to manufacture, and practical and eflicient in use.

The detailed construction will appear in the course of the following description, in which reference is had to the accompanying drawings, forming a part of this specification, like numerals designating like parts through out the several views, wherein Figure 1 is a top plan view of a mold con structed in accordance with my invention.

Fig. 2 is a vertical sectional view thereof on the line 2 2 of Fig. 1 looking in the direction of the arrow. Fig. 3 is a side elevation thereof. Fig. 4 is a section on the line 4 4 of Fig. 1 looking in the direction of the arrow, and Figs. 5 and 6 are detailed perspective views of elements of the invention to be hereinafter specifically referred to.

Referring specifically to the accompanying drawings, the numeral 1 designates a supporting-frame upon which the elements of the mold are detachably mounted. The frame 1 is provided at the front of its upper side bars with concaved bearings 2, within which are supported the reduced rounded ends 3 of a transversely-extending rod 4 of square cross-sectional shape. The rear portions of the sides of the frame 1 are extended vertically, as at 5, as is indicated in dotted lines in Fig. 3, to afford a stop against the rearward displacement of a transverse bar 6, loosely supported upon said frame and having its ends extended, as at 7, and shaped to form a handle. A cam-catch 8 is pivoted upon the frame 1 adjacent the bar 6 and is designed to engage said bar to prevent d1splacement thereof. g The rear walls of the several molds constituting'the gang are 'supported from the rod ,6 and are designated by the numeral 9. One ofsaid rear walls is illustrated in detail in Fig. 5 and comprises a member provided at its upper end with a rearwardly-extending flange 10, by which it is secured to the rod 6, and at its lower end with a longitudinal horizontal sleeve 11. The members 9 are supported upon the rod 6 in spaced relation, as is clearly shown in Fig. 1, and they are maintained in the proper relative disposition by means of a rod 12, extending through the sleeves 11 and supported at its ends in pivoted or compensating bearings 13, provided upon the sides of the frame 1.

The bar 4 serves as a positive support for the front and bottom walls of the molds. The latter are best shown in Fig. 4 and comprise a front portion 14 and a bottom portion '15, preferably formed integral in an L-shaped casting. The bottom 15 is provided at its outer end with a depending flange 16, which rests upon the adjacent sleeve 11 as a stop. The front 14 is provided with a forwardly-em tending flange 17, which is secured to rod4. The rod 12 also serves as a support for the sides 18 of the molds. These latter are illustrated in detail in Fig. 6 and are formed at their rear ends with a depending apertured lug 19, through which the rod 12 passes. The sides 18 are received between the flanges 10 of the rear walls 9 or, more properly, in the spaces between said rear walls and between the front and bottom walls. The sides 18 are formed at their upper front corner with overhanging lugs 20, which serve as hooks to engage the rod 4 in the spaces between the flanges 17. At the points where the hooks 2O engage the rod 4, the latter is rounded, as is shown by the dotted line 21 in Fig. 4, to conform to the curvature of the inner bearingsurface of the lug 20. The frame 1 is provided with forwardly-extending arms 22, suitably constructed to support a pivoted drop-pallet 23 and a stationary pallet-board 24.

The drop-pallet 23 is provided at its rear end with lateral extensions 25, which work in ICO IIC-

bearings 26, provided upon the arms 22 and at its front end with a centrally-located handle 27 for convenience of manipulation. The rod 4 is provided adjacent the bearings 2 with annular spacing-flanges 28 for maintaining the end side walls 18 in their proper relative disposition. The frame 1 is provided at its sides with vertical arms 30, which coact with flanges 28 to maintain the end side plates 18 in their proper position and to this end bear against the said plates, as is shown. The rod 4 carries at its ends detachably-secured handles 29 for the manipulation thereof.

In use the mold is assembled as shown. Semisolid material is introduced into the several mold-spaces formed by the side walls 18, the rear walls 9, and the front and bottom walls 14 and 15. The material is then tamped and when it becomes set is discharged from the mold. This is effected by lifting the catches 8 and by rotating the rod 4 by means of the handles 29. Such rotation raises the bottom 15 and the front wall 14 upon the rod 4 as a pivot and lifts the blocks between the sides 18 without disturbing the relative positions of said sides. As the bottoms 15 move in their pivotal travel they engage the rear walls 9 and displace the same upon the rod 13 as a pivot until the frame extensions 5 are engaged by the rod 6 in its rearwardly-yielding movement. One or more of the flanges 17 carry abutments 31, which engage the pallet-board 24, supported upon the drop-pallet 23, and move the same clear of the front of the mold. The blocks are received on the pallet-board. 24, the droppallet 23 being raised upon its bearings to lift said pallet-board and. facilitate the removal of the blocks. The rotation of the rod 4 in the opposite direction restores the front and bottom walls to their operative position, and the mold is reassembled by engaging the catches 8 with the rod 6.

While the elements herein shown and described are well adapted to serve the functions set forth, it is obvious that various minor changes may be made in the proportions, shape, and arrangement of the several parts without departing from the spirit and scope of the invention as defined in the appended claims.

Having fully described my invention, I claim- 1. A molding apparatus comprising a supporting-frame, rear mold-walls supported therefrom in spaced relation, a horizontal shaft mounted in said frame longitudinally thereof, said rear walls being formed with abruptly-enlarged lower ends, front walls fixed to said shaft in spaced relation, bottom walls severally fixed in spaced relation to the respective front walls and having their rear portions resting upon the enlarged lower ends of said rear walls and side walls interposed in the spaces between said rear, front, and bottom walls.

2. A molding apparatus comprising a supporting-frame, a rod mounted rearwardly and longitudinally thereof, rear mold-walls having their lower ends sleeved to surround said rod, said rear walls being arranged in spaced relation, a shaft mounted forwardly and longitudinally of said frame, front walls fixed to said shaft in spaced relation, bottom walls fixed. severally to said front walls in spaced relation, said bottom walls having their rear ends supported upon said sleeved ends of said rear walls and side walls interposed in the spaces between said rear, front and bottom walls, said side walls having loose connection at their respective adjacent ends with said rod and said shaft as supports.

3. A molding apparatus comprising a supporting-frame, rear walls carried thereby and adapted to have a restricted movement upon their lower ends as pivotal axes, stationarily-supported side walls, a shaft mounted forwardly and longitudinally of said frame, front walls fixed to said shaft, bottom walls fixed to said front walls and designed for movement therewith upon the rotation of said shaft, said. bottom walls in their movement being designed to displace said rear walls upon their pivoted lower ends and means for holding said rear walls against displacement on their pivots.

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

JOHN P. HECKMAN. I

Witnesses J. G. MATTESON, PRICE RUssELL.

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