US1323938A - wendt - Google Patents

Description

A. WENDT.

CASTING DEVICE FOR MAKING BAND AND OTHER RINGS AND PARTS THEREOF.

APPLICATION man I I9! CT. a. 7 1,328,938. Patented Dec. 2,1919.

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A. WENDT.

CASTING DEVICE FOR MAKING BAND AND OTHER RINGS AND PARTS THEREOF.

Patented Dec. 2,1919.

2 SHEETS SHEET 2- other styles and may be used .the one pattern plate being su 4 ring may be increased by ALFRED WENDT, OF FRESNO, CALIFORNIA.

CASTING DEVICE Eon MAKING BAND AND OTHER RINGS AND PARTS THEREOF.

To all whom it may concern:

Be it known that I, ALFRED lVENnT, a subject of the Emperor of Germany, resid ing at Fresno, in the county of Fresno and State of California, have invented certain new and useful Improvements in Casting Devices for Making Band and other Rings and Parts Thereof, of which the following is a specification.

This invention device for making has reference to a casting band rings or rings of for other purposes.

The object of the invention is to simplify the production. of rings, which, for simplicity of expression, will be hereinafter designated as band rings without limiting the invention to such particular type of rings.

In accordance with the invention there is provided a casting device composed of a base plate arranged to receive and temporarily hold the parts of a casting flask and the base plate is constructed to hold. any

one of numerous pattern plates, each containing a half pattern of the ring to be cast. Associated with the pattern plate is a gateproducing pattern which may be utilized to lock the ring pattern plate on the base plate, iiicient for both halves of the-flask so that when the mold is completed and the two halves of the flask are brought together there is a mold of a ring of twice the thickness of the pattern. After the casting is done the gate slug is removed and the ring is finished. The patterns may all have a standard internal diameter, say about No. 2!;- of the ring gage,- and the internal diameter of the cast stretcher. V The arrangement permits the use of a minimum number of parts, since the designations of the patterns relate more particularly to the weight and thickness of the rings, the internal 'diameter'of the rings when cast being all alike and the different diameters being subsequently determined by a ring stretcher. i v

The invention will be best understood from a consideration of the following detailed description taken. in connection wit the accompanying drawings forming part of'this specification, with the understanding, however, that the invention is not confined to strict conformity with the showing o the drawings but may be Specification of Letters Patent.

changed Fig. 5.

maybe fiatand quite the use of a rmg Patented Dec. 2, 1919.

Application filed October 1, 1918. Serial No. 256,462.

and modified so long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings Figure 1 is a perspective view of a ring pattern and pattern plate.

Fig. 2 is a perspective view of the reverse side of the structure shown in Fig. 1.

Fig. 3 is a perspective view ofYthe patternsupporting plate and carrier therefor.

Fig. 4c is a perspective view of the gate pattern.

Fig. 5 is a plan view of the pattern-supporting plate, carrier, pattern plate and gate pattern all associated.

Fig. 6 is a section on the line 6--6 of Fig. 5.

Fig. 7 is a perspective view of the structure shown in flask applied.

Fig. Sis a perspective view of the half of the flask shown in Fig. 7 after having been filled with sand and removed through-the flask of Fig. 9, from side to side and showing vessel.

Fig. 11 is a section on the line11ll of Referring to the drawings, there is shown a plate 1, usually, though not necessarily, of rectangular shape, thin." One edge 2 of the plate is beveled and the other edge is provided with an entering slot 3 having the side walls beveled opposltely one from the other.v One face of the plate 1 carries a pattern 4 representing one half the thickness of a band ring, but this pattern may represent one half the thickness of other types Fig. 5 with one half of the the flask carried by a drip.

and this plate from the pat I of rings or parts thereof, or even of other 7 articles.

There is provided 'asuitable number of plates 1 each with a pattern 4 thereon, the patterns being all'of the same internal diameter but differing in thickness and in height 'from the plateto correspond to different weights of finished rings. Theopposite face of the plate 1 from that carrying the pattern l'is utilized for designations 5 and 6 representing the number of the pattern e I of thedrawings, the corners of the flasksecand the weight thereof, theseidesignations ering all that are ordinarily having to do with the completed ring. In actual practice, it is customary to make the band ring models in six widths with each width in seven different weights, these covin use. 7

There is also provided a support 7 of any suitable size and shape but which may be quite small for convenience of handling and may, if desired, be made of wood. Fast on the support or block 7 is a base plate 8 made fast thereto by screws-9 or in any other appropriate manner. The base plate is formed with or carries a raised portion 10 which, as well as the base plate 8, may be of rectangular conformation, although such particular shape is not obligatory. The corner portions of the raised portion 10 have sockets 11 formed therein and near one end of the raised portion 10 it is cut down to the level of the base plate 8 to provide a recess or receptacle 12 of a size to snugly receive thepattern plate 1. One edge 13 of the recess ,12 is beveled to receive the beveled edge 2 of the pattern plate 1 and by overhanging such beveled edge 2 look the corresponding portion of the plate 1 in the recess. .Leading from the opposite edge of'the recess 12 a is an undercut groove 14: reaching to the adjacent edge of the raised portion. 10. Both which leads into the recess12 is positioned cess Sbeing correspondingly undercut.

. 'There is also provided a gate pattern 15 tapering from one end toward the other and defining a semi-.frusto cone. on the flat face of the gate pattern 15 is a longitudinal rib 16' undercut in conformity with the grooves 3 and lat so'that the rib 16 will slide along the grooves. 14: and 3 locking the gate pattern thereto and also locking the recessed the ring 17 and end ot the pl ate 1 in the 'correspondingportion of the recess or receptacle 12, the oppo site edge of the plate 1 being thenlocked by the undercut edge 13. In order to facilitate the handling of the gate pattern 15 itis providedat the larger end with a handle or manipulating ring 17 and the support '7 is cut awayyas shownat 18, to accommodate permit the ready grasping of it by the fingers of an operator.

Adapted to the raised portion 10 are two flask sections 19 and 20, which sections may be identical and each represent a half of a applies tothe other. Each flaskseotion is in the-form of a frame which may be substantially rectangular, although any particular shape is not obligatoryand, in theshowin 1 tion have reinforcing enlargements 21, this being simply for the purposes of strength;

On each side of. each flask section is a semi-cylindrical projection 22 with external screw threads extending about the curved wall of the projection. At one end of each flask section is a passage 24 of a size to acin one diagonal of the flask section and the sockets 27 in the other diagonal thereof." In

At the other end of the posed socket-s 27, the studs 26being' arranged this manner a. set of studs 26 will always en- 5 gage in diagonally opposite sockets 11 of the raised portion 10 of the plate 8 andthe set ofstuds 26 on-each flask section will always enter. the set of so'ckets27 of the'other flask section. V In this way the parts are antomatically centered and held against" displacement one relative to the other.

.VVhen it is desired to make al i'ing, a suitable one of the patterns is chosen and is placedin the recess 12 and locked therein by the gate pattern '15. ends of the groove 14:. are open and that. end 4 Then one of thefiask sections is placed upon the raised portion 10, I

centering thereon because of the entry] of the studs 26 in the corresponding sockets 11.

The flask section is. then filled .with casting sand and pressed down, as is customary, after which the flask 1s carefully llfted oil leaving an impression of the ring pattern and'gate pattern in the sand. The other flask section is then applied and filled and the, two flask sections are'brought together and centeredfby thestuds 26 and recesses 27,

and clamp nuts 28, which, for convenience,

may be in the form of wing nuts, areapplled to the screw PI'OJGCtlOIlS 22'wh1ch are then in matching relation. This fastens thefiask sections 19 and" 20 together. The two halfstuds 25 then become in effect asingle tapering stud which is inserted in a tapering hole 28 inside of a pan or receptacle 30, the flask pouring gate leading to the ringportion of the, flask uppermost. Molten metal is poured spillover is caught in'the pan or receptacle 30 thus preventing waste, th s being important in the case of precious metals such as gold. After the metal has cooled the flask is removed from the receptacle 30, the

formed in a boss 29 centrally located T being then in an upright position with the r wing nuts are unscrewed and the sand is loosenedthus exposinga cast ring with the gate lug fast thereto. Thering is then finished by first removing the gate lug and taking off any roughness or any inequalities on the ring itself, after which, the ring is subjected to the action of a ring stretcher to bring it to the desired internal diameter if need be.

lVhat is claimed is 1. Casting apparatus for producing finger rings and other articles alike on opposite sides, comprising a pattern plate with a ring pattern in relief fast to one face of the plate and approximately onehalf the Width of the complete ring.

2. Casting apparatus for producing finger rings and other articles alike on opposite sides, comprising a pattern plate with a ring pattern in relief fast to one face of the plate and approximately one-half the Width of the complete ring, and a bed plate with a recess of a size and thickness to seat the pattern plate.

3. Casting apparatus for producing finger rings and other articles alike on both sides, comprising a pattern plate with a ring pattern in relief fast to one face of the plate and approximately one-half the width of the complete ring, a' bed plate with a recess of a size and thickness to seat the pattern plate, and a pattern representing one-half of a gate and provided with means for looking the gate pattern to the bed plate and for locking the pattern plate when seated in the recess of the bed plate.

4. In casting apparatus for finger rings and the like, a flat plate having a ring pattern fast on one face of said plate and approximating one-half the width of the complete ring, a bed plate seating the first-named plate with one edge of the pattern plate beveled and the corresponding edge of the seat in the bed plate undercut to receive the beveled edge of the pattern plate, and means coactively related to the portion of the pattern plate remote from the beveled edge and to the bed plate on that side of the recess remote from the undercut portion of said recess to temporarily lock the pattern plate in the recess flush with the bed plate and with the ring pattern projecting in relief from the plane of the exposed faces of the pattern and bed plates,

5. In casting apparatus for finger rings and the like, a pattern plate with a ring pattern in relief fast thereon and projecting for a distance representing approximately one half the width of the complete ring, said plate having one edge beveled and provided with an entering slot at the opposite edge extending to the exterior of the ring pattern.

6. In casting apparatus for finger rings and the like, a pattern plate with a ring pattern in relief on one face representing approximately one-half the widthof the completed ring, a bed plate with a seat for the pattern plate with matching portions of the pattern plate and seat in the bed plate shaped to interlock, and other matching portions of the pattern plate and bed plate having grooves adapted to aline when the pat-tern plate is seated in the bed plate, and a gate pattern representing one-half of the complete gate and provided with means for entering the grooves in the two plates to lock the ring pattern plate in the bed plate and to lock the gate pattern to the bed plate.

7. In casting apparatus for rings, a pat tern plate with a ring pattern on one face representing approximately one half of the completed ring, a bed plate with a recess therein of a size to receive the ring plate, said recess having an undercut edge and the ring plate being beveled to lodge in the undercut with the. plate seated in the recess, the bed plate and ring plate having matching undercut grooves, and a gate pattern representing approximately one half the casting gate and provided with an under cut longitudinal rib for lodgment in the matching undercut grooves.

8. In casting apparatus for rings, a pattern plate with, a ring pattern on one face representing approximately one half of the V completedv ring, a bed plate with a recess therein of a size to receivev the ring plate,

said recess having an undercut edge and the ring plate being beveled to lodge in the un dercut with the plate seated in the recess, the bed plate and ring plate having matching undercut grooves, and a gate pattern representing approximately one half the casting gate and provided with an undercut,

longitudinal rib for lodgment in the matching undercut grooves, and thecasting gate pattern being of taper form and provided with a manipulating member at its larger end. 7

9. In a casting apparatus for rings, a substantially fiat plate provided on one face with'a ring pattern in relief representing approximately one half the width of a completed ring and the other face of the plate having designations identifying the ring pattern;

In testimony whereof I aiiix my signature.

ALFRED WENDT.

Witnesses:

JULIUs HANsEN, ERNEST KLETTE.

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