US822038A - Tile-molding device. - Google Patents

Description

No. 822,038. PATENTED MAY 29, 1906.

BESSER. TILE MOLDING DEVICE.

APPLICATION FILED 00T,19, 1905.

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PATENTED MAY 29, 1906.

H. BESSBR.

TILE MOLDING DEVICE.

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ATTORNEYS UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented May 29, 1906.

Application filed October 19, 1905. Serial No. 283,416.

To aZZ whom it may concern.-

Be it known that I, HERMAN BESSER, a citizen of the United States, and a resident of Alpena, in the county of Alpena and State of Michigan, have invented a new and Improved TileWIolding Device, of which the following is a full, clear, and exact description.

My invention relates to a device for simultaneously molding a plurality of tiles in vertical position.

The principal objects of the invention are to provide a simple form of mold for this and similar classes of work and to provide an efficient mechanism for operating it.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both the figures.

Figure l is a sectional view on the line 1 1 of F ig. 2, showing a machine and mold constructed in accordance with the present invention; and Fig. 2 is a plan of the same.

On a frame 10 is mounted a bridge 11, the latter preferably being adjustably secured to the frame by means of screws or bolts 12'. On this bridge are mounted a pair of supports 13 for the bottom plate 14 of a mold. These supports also carry pivots 15, on which are mounted side walls 16, which, with the bottom plate, constitute the main portion of the mold. There are no separate end walls for the mold, the side walls being provided with extensions 17 at their ends and projections at intervals along their interior which abut against similar elements on the opposite mold-walls and close the molds at their ends. By this construction it will be clear that the entire sides and ends of the mold are formed by the two side walls, and thusthe mold is greatly simplified over those forms in which four or more walls are employed. I have shown the molds as being provided with cylindrical cavities for the formation of cylindrical tiles. It will be obviohs, however, that tiles of other forms can be made in molds embodying this principle.

For the purpose of forming passages through the tiles or indentations therein a series of cores 19 are employed. These cores may be of any desired size and shape, either one or more being located in each section of the mold. The bottom plate 14 and supports 13 are perforated to permit the passage of these cores, and the cores are mounted upon a support 20. In order that the cores may be adjusted on this plate, each one is provided with a slot 21, through which passes a bolt 22 for securing the core to the support.

In order to provide for manipulating the cores and the side walls of the mold in such a manner as to readily draw the cores and open the mold when the material is tamped or pressed in, I have provided the following mechanism: On a shaft 23 is mounted an operating-handle 24 and a ratchet-wheel 25. This ratchet-wheel is controlled by a pawl 26, pivoted on the frame of the machine. Also on the shaft is mounted a drum 2?, to which. a flexible member, shown as comprising a chain 28, is wound one or more times. The drum and chain are duplicated at the ends of the machine. The chain passes upwardly from the drum around a sheave 29, which is located on a vertically-movable bar 30, secured to the support 20. The chain then passes downwardly from this sheave and is fixed to the frame by means of a hook 31 or the like. The end of the chain passes downwardly from the drum 27, passes under a sheave 32, also on the bar 30, and then upwardly to a fixed position. The two ends of the chain are both shown as connected with a hook 31. It will be obvious that the rotation of the shaft 23 will cause the bars 30 and support 20 to rise and fall and that this operation will be efiiciently and accurately performed. The pull being applied to both ends of the support, it will move along parallel lines, and there will be no appreciable tendency to bind.

On the bars 30 is mounted a frame 33, consisting of longitudinal and transverse members adjustably connected together. On this frame are mounted a series of adjustable brackets 34, having rollers 35, adapted to engage with inclined lugs 36, mounted. on the outer sides of the mold-walls. With each of the side pieces of the frame a pair of springs 37 is also connected. These springs are secured at their other ends to the two moldwalls, and when the frame is lowered they assist in opening the mold. The lowering of the frame also automatically draws the cores.

In the form of the lugs shown it will be seen that their upper parts are substantially vertical, while an inclined surface 38 is provided at alower point. The result of this is that the first part of the downward motion of the bars 30 will draw the cores without disturbing the mold-walls, while the last part of the motion will draw the mold-walls apart. This sequence of operations is desirable in the manufactureiof long hollow articles.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. A molding-machine comprising a movable core-support, pulleys journaled thereon, a shaft having a drum, and a flexible member wound on said drum and passing over said pulleys, the ends of said member being fixed to a stationary part of the machine.

2. A moldingmachine, comprising a movable member for opening the mold, a pair of pulleys journaled upon said member near opposite ends thereof, a shaft located at a point between the two pulleys, a drum on said shaft, and a flexible member wound around said drum and passing under one of the pulleys and over the other, the ends of said con nection being secured to a fixed part of the machine.

3. A molding-machine, comprising a mold having movable walls, a core within the mold, means for withdrawing the core from the mold, means for retaining the mold-walls in closed position and means whereby said withdrawing means will release said retaining means after the withdrawal of the core.

4. A molding-machine, comprising a mold having movable walls, springs for opening the mold-walls, .a core within the mold, means for retaining the mold-walls in closed position, and means whereby the withdrawing means will release the retaining means after the withdrawal of the core.

5. A molding-machine, comprising a mold, a core within the mold, a support for the core, vertical bars secured to the ends of the support, pulleys on the ends of the bars, a drum intermediate the pulleys, and a flexible memher wound upon the drum and having cach of its ends passing over a pulley and connectv ed to a stationary part of the machine.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HERMAN BESSER.

Witnesses:

BYRON H. OLDs, C. B. WILLIAMS.

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