US1129189A - Jarring-machine. - Google Patents

Description

B. D. FULLER & J. R. & T. A. REILLY.

JARRING MACHINE. APPLICATION FILED 001". 17, 1912.

- Patented Feb. 23, 1915.

INVENTgEJS THE NORRIS PETERS CO., PHDTO LITHOH WASHING mm, D. c.

TTNTTEU %TATE% PATENT FFTE BENJAMIN D. FULLER AN'D JAMES R. REILLY, 0F LAKEWOOD, AND THOMAS A. REILLY, OFGLEVELAND, OHIO.

JARItlNG-MACHINE.

earse.

Specification of Letters Patent.

Patented Feb. 23, 1915.

Application'filed October 17, 1912. Serial No. 726,313.

To all whom it may concern Be it known that we, BENJAMIN D. FUL- LER and JAMES R. REILLY, residents of Lakewood, county of Cuya-hoga, and State of Ohio, and THOMAS A. REILLY, a resident of Cleveland, county of Cuyahoga, and State of Ohio, citizens of the United States, have jointly invented a new and useful Improvement in Jarring-Machines, of which the following is a specification, the principle of the invention being herein explained and the best mode in which we have contemplated applying that principle, so as to distinguish it from other inventions.

The machine which forms the subject mat ter of the present invention, comprises a jarringmachine for use in filling mold boxes and packing the sand around the patternplate.

The invention relates more particularly to the means for holdingthe mold box, consisting, of course, of the pattern plate and the flask on the top of the jarring machine which forms the filling stand proper, and also in the extremely simple and automatically operated means for jarring the mold.

To the accomplishment of these and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing: Figure 1 is a plan view of a filling stand provided with improved means for retaining the mold box thereon; Fig. 2 is a central vertical section on the line 22 in Fig. 1; Fig. 3 is a side elevation of the mechanism in Fig. 1; and Fig. 42 is a central section similar to Fig. 2, but illustrating a modified form of our device.

Referring to Fig. 2, it will be seen that our invention comprises the usual tubular support 1, in which is reciprocably mounted a piston 2, cast integrally with the top 3, forming the filling stand proper. The top of the support 1, is provided with laterally extending shoulders 4:, against which the shoulders 5 on the piston are adapted to contact, and as the piston is shorter in length than the distance between the shoulders 4L and the bottom of the support, such contact between the'shoulders i and 5 imparts a considerable jar to the filling stand. The piston is adapted to be operated by a suitable pressure fluid, such as compressed air, and an inlet port 6 is provided at the lower end of the support, which will lead to any suitable source (not shown) of fluid pressure. Outlet ports 7 are provided in the tubular support, and are located some distance above the level of the inlet port 6, being normally covered and closed by the piston 2. In the present view we have shown but one such outlet, but it will be understood that the number is immaterial so long as the area of the port opening is suilicient to afford a rapid exhaust of the pressure fluid actuating the piston. The piston 2 is hollowed out at its lower end, forming an inverted cup Sand greatly increasing the space which is to be filled with the pressure fluid.

The operation of thereciprocating means is as follows: Air is admitted beneath the piston through the inlet ports 6, thus forcing the piston upwardly until the sides of the piston uncover the outlet port or ports 7. The area of these ports is considerably greater than the area of the inlet ports, and the air beneath the piston will therefore exhaust very rapidly, permitting the piston to fall. Such downward movement of the piston tends, of course, to be arrested as soon as the sides of the piston cover the outlet ports, as the incoming air forms a cushion between the piston and the bottom of the tubular support. If the piston were not hollowed out, such cushioning effect of the fluid would not permit the piston to strike upon the shoulders, but would immediately force it upward, thus uncovering the outlet ports, and imparting a springy jogging movement to the piston. The hollowed out portion of the piston, however, is not filled with sufficient pressure fluid before contact between the shoulders on the piston and support to permit such jogging movement. By the time these shoulders have contacted, the cup-shaped portion of the piston is filled with fluid, and the piston is then forced upward as before. The action is automatic at all times, and very little pressure fluid is lost by reason of the opening of both inlet and exhaust ports in one position of the piston.

The present machine is designed to operate with small sizes of mold boxes which must be fastened to the top of the reciproeating member by suitable means, as their weight is insufficient to keep them in contact with the top at all times. This is, of course, not a difliculty in jarring large sizes of mold boxes since their weight is suflicient to keep them in contact with the top or filling stand through the jarring operation. It is necessary, therefore, to provide some simple and easily adjusted means for retaining the mold boxes on the top. A suitable means which we have designed for this purpose consists in a fixed flange 9 disposed at any convenient point on the top, and a second movable flange or adjustable retaining member 10 which is provided with handles 11, adapting it to be conveniently adjusted by an operator, and with downwardly extending lugs or jaws 12 which engage with suitable engaging means on the top, such means preferably comprising outwardly extending lugs 13, between which the jaws 12 are adapted to be secured.

In order to secure a nicety of adjustment, which is impossible with the lugs and jaws alone, by reason of the fact that the jaws must, of course, engage between the lugs, and the latter are spaced at definite intervals, we have provided resilient means adapted to engage one face of the mold box, and to operate against one of the two flanges. Such resilient means comprise a retaining member 16 in the form of a flange, which contacts the side of the mold box 17 and is attached to one of the'other flanges, as shown in Fig. 2 the flange 10, by means of two bolts 14, the bolts being fixedly attached to the flange 16, and slidably attached to the flange 10, and springs 15 encircling said bolts and operating between the flanges 16 and 10. When the adjustable flange is moved to a position as near the mold box as is possible, the flange 16 is thus forced into a secure frictional engagement with the mold box by means of the springs 15 which operate against the flange 10.

It is, of course, a matter of no moment, whether the third flange be attached to the adjustable flange 10, or the fixed flange 9. In Fig. 4 we have shown a slightly different form of our invention. In this form the third flange or retaining member 22, bolts 20 encircled by springs 21, are shown attached to the fixed flange 9, in which case the operation will be as before, except that the adjustable flange 10 will be placed against the mold box and will force the latter across the top into contact with the flange 22, until the springs have been compressed as shown, when the flange 10 is dropped downwardly, the jaws 12 engaging between the adjacent lugs 13.

The advantages of the present means for securing the mold boxes to the top, are apparent. The means are extremely simple, and the method of adjustment can be readily understood by the operators. The advantages of the jarring means are the simplicity, and the automatic action of the same.

Other modes of applying the principle of our invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

We therefore particularly point out and distinctly claim as our invention 1. In a machine of the class described, the combination of a filling stand adapted to receive a mold-box thereon; a fixed flange attached to said stand; a second flange movably mounted on said stand; and a third flange disposed between said other flanges and resiliently attached to one of the same.

2. In a machine of the class described, the combination of a filling stand adapted to receive a mold-box thereon; a fixed flange mounted on said stand; a second flange adapted to be adjusted relative to said fixed flange and substantially parallel thereto; a third flange disposed between said other flanges adjacent said second flange, said third flange being resiliently attached to said second flange; engaging means mounted on said second flange; and complementary engaging means mounted on said stand adapted to cooperatively engage with said first-named engaging means.

3. In a machine of the class described, the combination of a filling stand adapted to receive a mold-box thereon; a fixed flange mounted on said stand; a series of spaced lugs mounted on said stand and extending in a line at substantially right angles to the said fixed flange; a second flange provided with projecting lugs, such lugs being adapted to removably engage said lugs on said stand.

a. In a machine of the class described, the combination of a substantially rectangular filling stand adapted to receive a mold-box thereon; a flange fixed along one edge of said stand; a series of lugs formed in either of the adjacent edges of said stand; a second flange provided at either end with a lug adapted to removably engage between said lugs on the edges of said stand; and handles on said second flange, adapting the same to be moved along said stand.

5. In a machine of the class described, the combination of a filling stand adapted to receive a mold-box thereon; a fixed flange mounted on said stand; a second flange adapted to be adjusted relative to said fixed flange and substantially parallel thereto; a

third flange disposed between said other flanges adjacent said second flange, a bolt connecting said second and third flanges in parallel spaced relation; a coiled spring encircling said bolt and permitting a yielding of said third flange toward said second flange; engaging means mounted on said second flange; and complementary engaging means mounted on said stand adapted to cooperatively engage with said firstnamed means.

6. In a machine of the class described, the combination of a filling stand adapted to receive a mold-box thereon; a fixed flange mounted on said stand; a second flange adapted to be adjusted relative to said fixed flange and substantially parallel thereto; a third flange disposed between said other flanges adjacent said second flange, a plurality of bolts connecting said second and third flanges in parallel spaced relation; a coiled spring encircling each of said bolts and permitting a yielding of said third flange toward said second flange; engaging means mounted on said second flange; and complementary engaging means mounted on said stand adapted to cooperatively engage with said first-named means.

Signed by us this 15th day of ()ctober, 1912.

BENJAMIN D. FULLER. J AMES R. REILLY. THOMAS A. REILLY. Attested by- GEO. E. ANnUs, A. H. JoNns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O.

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