US809452A

US809452A - Machine for molding hollow walls.

Info

Publication number: US809452A
Application number: US25335205A
Authority: US
Inventors: Israel L Landis
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-04-01
Filing date: 1905-04-01
Publication date: 1906-01-09
Anticipated expiration: 1923-01-09

Description

No. 809,452. PATBNTED JAN. 9, 1996. I. L LANDIS MACHINE FOR MOLDING HOLLOW WALLS. APPLmATIoN FILED APR 1 1906 z slums-suur '1.

N VEN T05 Mm W/TNESSES ATTO/mfr M-K/W 'unirse srarns Parana clarion MACHINE FOR IVIOLDING HOLLOW WALLS.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed fipril l, 1905. Serial No. 253,852.

To all whom t may concern,.-

Be it known that I, ISRAEL L. LANDIS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Molding Hollow Valls, of which the following is a specification.

This invention relates to machines for molding artificial-stone structures, and has particular reference to hollow-wall construction.

The object of the invention is to provide a machine capable of molding hollow buildingblocks into a wall, thus saving the cost and expenditure of time incidental to the manufacture of individual building-blocks which areconverted into artificial stone before being laid in the form of a wa'll. f

Another object of the invention is to provide a collapsible core of very simple construction and operated byasimple and powerfully-acting lever pivoted directly to the sides of the core which it is arranged to move.

The invention consists in the novel operating mechanism for relatively movable mold-boards and in the adaptation of same to a collapsible core, hereinafter described in detail, illustrated in the drawings, and particularly pointed out in the claims. p

Of the drawings, Figure 1 is a perspective view of a complete machine, including collapsible core, embodying my invention. Fig. 2 is an enlarged perspective view of the collapsible core. Fig. 3 is a top plan view of the complete machine, the dotted vlines indicating the open or expanded position of 'the mold-boards. Fig. 4 is an end view showing the machine in position on a section of hollow wall. Fig. 5 is an end view of the core in its collapsed position. Figs. 6 and 7 are respectively edge and face views of partition or end gates.

Referring to the drawings, 2 and 3 represent the mold-boards, and 4- and 5 the sides of the core. When both sides and ends of the latter are surrounded by material or when the core is positioned as shown in Fig. 1, any suitable end boards may be provided, attached, like

sides

4 and 5, to standards 6 7 and 8 9 or consisting of loose plates placed against the ends of the core. As this core is adapted for molding a wall with a continuous hollow space without connecting webs between inner and outer wall-

sections

10 and 11, Fig. 4, no ends are required for the core.

12 is an operating-lever pivoted at 13 to the mold-board 2 and at 14 to the mold-board 3, Said lever is provided with a handle 15, arranged at an angle to that portion of the lever which extends across the mold-boards or, as shown in Figs. 1 and 3, to lie against the mold-board 2 when the machine is in position to receive the concrete or plastic material. A rotatable catch 16, pivoted upon a screw 17, is adapted to lock the lever against movement and to assist in holding the mold-boards against spreading movement while the material is being tamped in. A cross-bar 18 is pivoted at 19 to mold-board 2 and at 2O to mold-board 3.

Bottom cross-bars

21 and 22, lh aving apertures through their ends for

keys

23 and 24, preventspreading apart of the lower edges of the mold-boards while concrete or cement is being packed or tamped in between the core and sides 2 and 3. Division or

end plates

25 and 26 are mounted in grooves formed in the inner faces of the moldboards. The

sides

4 and 5 of the core are secured to

standards

6, 7, 8, and 9, and the latter are linked together at their upper ends by

levers

29 and 31, rigidly secured to a shaft 28, having its bearings in the

standards

7 and 9. Standards 6 and S are pivoted to the levers, as at 27. Links 30 connect the lower ends of standards in the same manner as levers 29 and 3]. By the provision of shaft 23 the sides of the core may be operated by either one of the levers, as well as by manipulation of both levers at the same time. A series of feet or pivoted plates 32 provide means for supporting the mold-boards laterally of the vertical plane of a wall or the vertical planes of the wall-sections separated by an intervening space. In Fig. 3 the dotted lines indicate the positions of the pivoted plates when moved out of position to engage a wall. Starting from the position of the machine shown in Fig. 1, its operation is as follows: Concrete or plastic material is filled in the spaces represented by figures 33, 34, 35, and 36, suitable end boards or end plates(not shown) having -irst been placed against the ends of the

core sides

4 and 5. When the cast has been formed, the catch 16 is rotated out of engagement with the end of handle portion 15 of lever 12 and said handle swung outwardly to the position shown by dotted IVO IOS

lines, thereby moving the mold-boards 2 and 3 apart and releasing the cast from the outer boards. By swinging

levers

29 and 31 either` up or down from normal horizontal positions (shown in Fig. 4) the

sides

4 and 5 will be moved toward each other. As shown in Fig. 5, side 5 remains stationary and as a fulcrum for levers to move side 4. In any event the core will be collapsed, so that it may be lifted out of the opening which it has formed in the cast. The machine is then moved another step along the wall and another cast formed,

have been replaced in the position shown in Fig. 1. Before the material is tamped in the

lower cross-pieces

21 and 22 and keys are placed in position shown and before the lever comprising parts 12 and 15 is moved to release the mold-boards the

keys

23 and 24 are removed and preferably also the

members

21 and 22 to permit the mold -boards to move when the lever is operated. If a continuous hollow space is to be formed, only one

end gate

25 or 26 will be employed-namely, the gate at the forward end ofthe machine, which would be the gate 26 if the machine is moved along the wall step by step toward the right, Figs. 1 and 3.

It is obvious that the machine may be placed upon any suitable flat surface and individual building-blocks molded for special purposes by using both end gates, as shown in Figs. 1 and 3, and suitableclosers for the open ends of the core. The mold-boards 2 and 3 may b e made of considerable length and the space between them subdivided by any suitable number of

gates

25 and 26 and a plurality of cores placed in the resultant spaces between the gates, or one block may be formed at a time with the aid of a single core until all the spaces have been filled. By extending the mold-boards in such manner time would be saved in moving a shorter machine. The spaces between the ends of moldboards and the respective gates may be considered as parts of the additional spaces which would be provided for in a longer ma chine, where more than two gates are employed. The lever 29 of the core may be formed similarly to lever 12 15, if desired.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with a molding-machine comprising a pair of mold-boards and means for moving said mold-boards longitudinally and laterally relatively to each other, of a core having sides movable vertically relatively to each other, connecting-links for the lower parts of said sides and levers pivoted and so on, after the mold-boards and coreA to the upper parts of said sides for yoking said upper parts together and for moving said sides relatively in a vertical plane.

2. A molding-machine comprising moldboards movable laterally and longitudinally relatively to each other and a core having sid es connected by pivoted cross-bars or links, a lever overlying the tops of said mold-boards and pivoted thereto, said lever arranged to move said mold-boards in ahorizontal plane, a similar lever, or several thereof, pivoted to the sides of said core and adapted to move one of said sides vertically and laterally relatively to the other side, and a connecting cross bar pivoted to said moldboards to assist in supporting the latter in their relative positions and to move with said lever.

3. In a molding-machine, the'combination of a pair of mold-boards, with means for moving said mold-boards longitudinally and laterally relatively to each other, a core having sides arranged to be moved relatively to each other, means for supporting said sides in their relative positions, and gates, or partitionwalls, which are adjustable between said mold-boards to make an inclosed mold-space around said core.

4. In a molding-machine, in combination, a pair of mold-boards movable toward and from each other in parallel planes, means for moving' said mold-boards, means for yoking said mold-boards together temporarily against relative movement during formation of a cast, means for partitioning off a portion of the mold-space between said mold-boards, a core having sides arranged to move toward and from each other in parallel planes, said core being free of said mold-boards and adjustable in any suitable position within said portion of said mold-space.

5. In a molding-machine, the combination with a pair of mold-boards movable longitudinally and laterally relatively to each other in a horizontal plane, of core sides movable relatively to each other in a vertical plane, means for moving said mold-boards, means for yoking said mold-boards together against relative movement, means for moving said core sides, means for supporting said moldboards upon a hollow wall, and removable end gates or partition-walls which divide the space between said mold-boards into a moldspace adapted to receive said core sides.

In testimony whereof l have hereunto set my hand in the presence of two subscribing witnesses.

SRAEL L. LANDIS. Vitnesses DAVID WHITEFORD, FRED. L. KOEHLER.

.TOO

IOC