US867321A - Machine for reversing flasks and molds. - Google Patents

Description

No. 867,321. PATBNTED OCT. 1, 1907. t W. E. TROUTMAN. V

MACHINE FOR RBVERSING FLASKS ANDYMOLDS.

APPLICATION FILED MAB-L 1907.

2 SHEETS-SHEET 1.

INVENTOR 219. 64111 044 :110:11

W1 TNESSES Attorneys TM: NGRIIS PIYIRJ 5a.. WASHINGTON, 0. c.

WILLIAM E. TROUTMAN, OF VANDERGRIFT, PENNSYLVANIA.

MACHINE FOR REVERSING FLASKS AND MOLDS.

Specification of Letters Patent.

Patented Oct. 1, 1907.

Application filed March 4, 1907. Serial No. 360,446.

To all whom it may concern:

Be it known that I, WILLIAM E. TROUTMAN, a citiz'en of the United States of America, residing at Vandergrift, in the county of Westmoreland and State of Penn- To this end, my invention is particularly adapted for foundries where large flasks and patterns are used, the machine embodying my invention being especially constructed for flasks and patterns of a considerable weight.

With the above and other objects in view, which will more readily appear as the invention is better understood, the same consists in the novel construction, combination and arrangement of parts to be hereinafter more fully described and then specifically pointed out in the appended claims, and referring to the drawings forming part of this application, like numerals of reference designate corresponding parts throughout the several views, in which:-

Figure 1 is a front elevation of my improved machine, partly in section, Fig. 2 is a side elevation of the same, illustrating a flask in a tilted or partly reversed position, Fig. 3 is a plan of the machine illustrating the flask thereof in section, Fig. 4 is a perspective view of a clamp used in connection with the machine, and Fig. 5 is an elevation of a portion of the machine illustrating a slight modification.

To put my invention into practice, I construct a track way consisting of standards 1 and a plate 2, said plate being provided with rails 3 and diametrically opposed openings 4. Upon the plate\2 adjacent to the openings 4 I mount guide ways 5 having vertically disposed V-shaped grooves 6 formed therein the object of which will be presently described. Adapted to move upon the rails 3 is a car truck 7 carrying a skeleton-like structure 8, said car being employed for conveying flasks to and from said machine. Beneath the trackway I locate a hoisting mechanism such as a hydraulic cylinder 9, to the plunger 10 of which is connected an elevator 11 comprising side arms 12 and 13 having V- shaped guides 14 adapted to slide in the guide ways 5. The hydraulic cylinder 9 is suitably controlled and to cushion the downward movement of the elevator 11, I

interpose a coiled spring 15 between the hydraulic cylinder 9 and said elevator.

The upper ends of the side arms 12 and 13 are provided with two-part bearings 16 to receive the trunnions 17 and 18 of a pattern support 19. The trunnion 18 is slightly longer than the trunnion 17 and upon its outer end is provided with a spur wheel 19 adapted to mesh with the spur wheel 20 revolubly supported by a bracket 21. carried by the side arm 13 of the elevator.

Detachably secured to the pattern support 19 by nuts and bolts 20 or similar fastening means is a pattern 22, and adapted to fit over said pattern is a flanged flask 23, said flask being centered upon the pattern support 19 by diametrically opposed dowel pins 24. The flask is retained in engagement with the support 19 by end clamps 25, said clamps being pivoted as at 26 upon the pattern support 19 and limited in their movement by pins 27. The clamps 25 are adapted to overlie the flanges 28 of the flask 23, and prevent the flask from becoming detached from the pattern support 19 when the same is being reversed. After the flask has been filled with sand or similar material and tamped, aflask plate 29 is suitably secured to the flask, as at 30. It willbe observed that the pattern support 19 is normally a fixture of my improved machine, but should the same be injured it can be easily removed through the medium of the two-part bearings 16.

The pattern 22 which is detachably connected to the support 19 can be easily and quickly changed, and in order that the operation of the machine will be readily understood I will assume that the flask 23 has been properly tamped and is ready to be removed from the machine. tion to raise the elevator 11 to such a position that the pattern support 19 will be freed from the car.. It will be seen that the elevator 11 carrying the pattern support 19 also carries the spur wheels 19 and 20. I now use a crank handle, motor or suitable mechanism for rotating the spur wheels and inverting the pattern support 19 and the flask 23 secured thereto by the clamps 25. The elevator 11 is then partly lowered until the flask plate 29 engages the skeleton like structure 8 of the car. The clamps 25 are then released, whereby the flask 23 will rest upon the skeleton like struc- The hydraulic cylinder 9 is placed in opera- 7 ture 8. The elevator 11 is then raised carrying with.

it the inverted pattern support 19. After the pattern support has cleared the inverted flask upon the car, the

car is removed. Another carrying a flask is now placed beneath the inverted pattern support 19, and the elevator lowered until the pattern support engages the,

ered until the pattern support rests upon the car, as shown in Fig. 1, and then the flask is ready to be filled and tamped. After this operation, the flask plate is placed upon the flask, and the operation as first described is repeated.

It will be observed from the foregoing description taken in connection with the drawings, that I have devised novel means for manipulating a pattern support and flask, whereby the manual manipulation of heavy flasks and patterns is entirely dispensed with. By employing my improved machine, the preparation of molds is greatly facilitated, and it is obvious that the machine can be economically installed in various manufacturing plants where molds are used for producing articles made from plastic or molten material or metals.

In lieu of the spur wheels 19 and 20, I can provide the trunnion 18 with a hand wheel 31, this form of manipulating the pattern support and flask being particularly designed where small molds are to be made.

I do not care to confine myself to the type of hoisting mechanism used and such other changes in the minor details of construction, as are permissible by the appended claims, may be resorted to without departing from the spirit and scope of the invention.

What I claim and desire to secure by Letters Patent, is:

In a molding machine, standards supporting :1 connect ing plate and a car track carried by the latter, a car adapt:- ed to travel thereon, said plate having diametrical openings on each side of said track, Vshaped guide ways mounted on said plate adjacent said openings. :1 hoisting mechanism beneath said plate and a U'shaped elevator supported thereby, said elevator having side arms slidahly retained within said openings, the V-shaped guides upon said guide arms slidably fitting said guide ways, a pattern support trunnioned in the free ends of said side arms, piv oted clamps carried by said plate, a llask centered npom said support and removably held by said clamps and means carried by said elevator arms for inverting said pattern support and flask.

In testimony whereof I ailix my signature in the pres ence of two witnesses.

Witnesses Emvoon E. SEACRIS'I, Ronrnrr G. Sco'r'r, Jr.

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