US735347A - Molding-machine. - Google Patents

Description

PATBNTED AUG; 4, 1903.

J. W. DEARSLEY. MOLDING MACHINE.

APPLIOATION PILEED APR. 24, 1903.

2 SHEETS-$3331 1.

10 MODEL.

' r VIIIIIII/V s P215: m. Prioruunln. wa 1 No. 735,347. PATBNTED AUG. 4, 1903. J'. W. DEARSLEY.

MOLDING MACHINE.

APPLICATION FILED APR. 24, 1903.

2 SHEETS-SHEET -2.

- UNITED STAT S j Patented August 4, 1903. V

' JOHN W. DEARSLlEY, OF 'RAOINE, WISCONSIN.

MOLDING"- MACHINE.

srncrrrcn'rron forming part of Letters Patent No. 735,347, dated August 4, 1 903.

Application filed April 24,1903.

To all whom it may concern:

Be it known that I, JOHN W. DEARSLEY, a citizen of the United States, and a resident of Racine, in the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in Molding-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

The invention consists in certain peculiarities of construction and combination of parts hereinafter particularly set forth with refer ence to the accompanying drawings and subsequently claimed, the object of the invention being to provide simple economical machines bywhich to facilitate the setting up of molds in foundries, a vertically-adjustable pattern-support being embodied in each machine.

Figure 1 of the drawings represents a side elevation of a molding-machine in accordance with my invention, partly broken away and in section; Fig. 2, a vertical section view of the same machine organized for setting up molds in ends of three-part flasks; Fig. 3, a plan view of the machine as shown inthe second figure; Fig. 4., another vertical section view of the machine organized for setting up molds in the main or body portions of said flasks; Fig. 5,a partly broken plan view of the machine as organized in the fourth figure; Fig. 6, a vertical section view of a mold in a three-part flask,and Fig. .7 a horizontal section view indicated by lines 7 7 in the first figure. l A

Referring by letter to the drawings, A indicates a hollow column that constitutes the standard of my improved molding-machine,

' this column being expanded at its lower end in order that itmay stand upright. The upper end of the column is horizontally flanged to form a table B, upon which to se cure a stripping-plateO or other device.

Arranged in the column A is a spider D, having the arms thereof provided with detachable flanged wea plates E,held in place by screws, and to compensate, for wear filling-strips are inserted from time to time between said plates and the spider-arms.

The hub of the spider D is provided with a lower socket for the engagement of a screw threadedshank b, pertaining to a shackle F,

Serial No. 154,076. (No model.)

that has pivotal connection with one end of circular springs I are engaged by pins (1, that also engage openings provided in the leverarm G and link H, the latter being preferably provided with aseries of pin-openings in order to provide for varying the tension of said springs.

The hollow column A is provided with an exterior guide 6 for a vertica1ly-adjustable bolt f, and held on the bolt tight against the guide by means of a nut g is a stop J in the downward path of the lever G, that is herein shown as having an over and under rounded central portion provided with a transverse slot that tapers from both ends toward the middle, as shown in Fig. 1, this slot being loosely engaged by a screw-threaded pin K, on which nuts 71 are run against lever-facing washers i, said pin being adj ustably held in the lever-slot by means of said nuts. Made fast in the upper end of pin K is a springlatch L, and when the lever G and parts therewith are lifted the latch engages with a catch j, that depends from the table B aforesaid. Held by set-nuts 7c in adjustable connection with the latch L is a screw-eye m, and this screw-eye is connected by a link n with a handle M, that is shackled to the afore said lever. By means of the adjustable pin K and latch mechanism above specified predetermined upward throw of lever G and parts therewith against resistance'of springs I may be accurately gaged.

The 1 1 c th spider D qri ed wit an upper socket for the engagement of a screw-threaded shank or stem ofa pattern, and, as herein shown, it is engaged by the shank p of a pattern N, that is, guided vertically in the stripper-plate C aforesaid.

The patterns herein shown arejfor setting up molds for straw-cutter feed rollersof variable length in three-part flasks, the pattern N being the one on which the molds in the main or body parts of said flasks are made. The pattern P (shown in Figs. 2 and 3) is the one on which the molds for flanges of the feedrollers are set up in the end parts of the threepart flasks, and in Fig. 3 is shown a patternpiece Q for forming the runner in the mold.

To set up molds from the patterns herein shown the pattern P and pattern-piece Q are first assembled on the stripping-plate G, the pattern N having been lowered in the column A to leave its upper journal end extending through a corresponding center opening in the former pattern. When a sufficient number of molds have been made in ends of threepart flasks, the pattern-piece Q is removed and molds made in other ends of such flasks, after which the pattern P is removed and the pattern N lifted by an operation of the lever G to a predetermined elevation above the stripper-plate 0, according to the length it is intended to have the feed-rollers. The molds in bodies of three-part flasks are now made on the exposed part of pattern N, this pattern being lowered at the completion of the ramming up of each mold to permit removal of said mold and flask part containing same, after which the several parts of each flask, with the molds therein, are assembled for pouring.

It will be understood from the foregoing that the lift and fall of the pattern in connection with the lever-controlled spider D is accurately determined by the set of stop J and the pin K, the range of movement depending on the length of pattern or pattern-stem and the play necessary to clear the mold formed on said pattern.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A molding-machine comprising a hollowcolumn standard, a pattern-supporting device having the form of a spider arranged in the standard, detachable wear-plates in connection with arms of the spider, and means for raising and lowering said spider.

2. A molding-machine comprising a vertically-slotted hollow-column standard, a pattern-supporting device arranged in the standard, a lever having an arm extending through the standard-slot and connected to said pat-' tern-supporting device, a link connecting the lever and column, and a circular spring con nected at its ends to said lever and link.

3. A molding-machine comprising a vertically-slotted hollow-column standard, a pattern-supportin g device arranged in the standard, a lever having an arm extending through the standard-slot and connected to said pattern-supporting device, a link connecting the lever and column, a stop vertically adjustable in the downward path of the lever, a latch adj ustably connected to said lever, and alatchkeeper depending from an upper table-flange of said column.

4. A molding-machine comprising a vertically-slotted hollow-column standard, a pattern-supporting device arranged in the standard, a lever having an arm extending through the standard-slot and connected to the pattern-supporting device, a link connecting the lever and column, a stop vertically adjustable in the downward path of the lever, a screwthreaded pin engaging a lever-slot that tapers from both ends toward the center, lever-opposing washers and set-nuts on the pin, a spring-latch connected to the upper end of said pin, and a latch-keeper depending from an upper table-flange of said column.

5. A molding-machine comprising a vertically-slotted hollow-column standard,a spider arranged in the column and provided with upper and lower hub-sockets, a shackle having a shank in screw-thread connection with the lower hub-socket of the spider, the upper hub-socket of said spider being for the engagement of a screw-threaded pattern shank or stem, a lever having an arm extending through the column-slot and connected to the shackle, a link connecting the lever and column, and means for regulating the degree of lever-controlled ascent and descent of the aforesaid spider.

In testimony that I claim the foregoing I have hereunto set my hand, at Racine, in the county of Racine and State of Wisconsin, in the presence of two witnesses.

JOHN WV. DEARSLEY.

WVitnesses:

WM. A. STERLING, WILLIAM W. HAVEN.

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