US408105A - Mold foe casting wheels - Google Patents

Mold foe casting wheels Download PDF

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US408105A
US408105A US408105DA US408105A US 408105 A US408105 A US 408105A US 408105D A US408105D A US 408105DA US 408105 A US408105 A US 408105A
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segments
lower
mold
ring
upper
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • B22C9/28Moulds for peculiarly-shaped castings for wheels, rolls, or rollers

Description

(No Model.)

J'. W. HILL.

MOLD FOR CASTING WHEELS.

Patented July 30, 1889.

5 Sheets-Sheet 1.

(No Model.) 5 SheetsSheet 2. J. W. HILL.

MOLD POR CASTING WHEELS.

No. 408,105. Patented July 30, 1889.

n.; A I E fill (.No Model.) 5 Sheets-Sheet 3. J. W. HILL. MOLD POR CASTING WHEELS.

No. 408,105. Patented July 30, 1889..

33. %ye7m" 5 Sheets-Sheet 4.

(No Model.)

J. W. HILL.

MOLD POR CASTING WHEELS.

Patented July 30, 1889.

5 Sheets-Sheet 5.

(No Model.)

J. W. HILL. Y MOLD POR CASTING WHEELS.

Patented Tu-1y 30, 1889..

FIG XIII- NA PETERS. Pholithographer, Waxhnghm. D4 C UNITED STATES PATENT OEEICE.

JAMES IV. IIILL, OF PEORIA, ILLINOIS, ASSIGNOR T() THE PEORIA PULLEV AND IHEEL COMPANY, OF SAME PLACE.

MOLD FOR CASTING WHEELS.

SPECIFICATION forming part'of Letters Patent No. 408,105, dated July 30, 1889.

Application filed February 18, 1889. Serial NaSOOGZ, (No model.)

T @ZZ whom t may concern:

Be it known that I, JAMES IV. HILL, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Molds for Casting lVheels, &c., of which the following is a specification.

My invention relates to improvements in molds for casting wheels and pulleys of difio ferent widths; and it consists in certain features of construction, to be hereinafter de scribed, and then particularly pointed out in the claims.

In order that my invention maybe fully i5 understood, I will proceed to describe the same, reference being had to the accompanying drawings, in whichm Figure I is a vertical sectional View of my invention, showing the parts set up ready for 2o casting. Fig. II is a vertical sectional view of the internal removable parts withdrawn from the mold, the lower sections of the sectional segments remaining' in place, and Fig. III is a vertical sectional view of the remain- 2 5 ing parts. Fig. IV is a plan view of the mold,

the internal removable parts being withdrawn. Fig. V s a top view of Fig. II. Fig. VI is a perspective view of the lower wedgering. Figs. VII, VIII, and IX are details. 3o Fig. X is a vertical section through the lower casing-ring. Fig. XI is a vertical sectional view of the internal parts necessary to replace those shown in the other Iigures when the rim is to be cast on two series of spokes.

"3 5 Fig. XII is a perspective view of the support for the inner ends of the spokes shown in Fig. XI. Fig. XIII represents another form of device for disengaging the hooked rods from the lower wedge-ring, the parts being 4o shown in dotted lines. Fig. XIV is an underside view of the bed-plate and said disengaging device turned up at an angle oi' about forty-tive degrees.

The casing and support ofthe mold are the same when the rim is to be cast onto cit-her a single or double set of spokes, while the internal parts in both instances are differentin most respects.

I will first describe the mold as a whole when used for casting a rim onto a single se- 5o ries of spokes.

1 represents the base, and 2 the legs, on

.which it is supported. i

3 is a broad ring, (which I will designate the base-ring,) through which are passed bolts at, which also pass through the legs and the outer edge of the base l, thus securing the legs to the latter. Onto the .lower ends of these bolts are screwed nuts 5. These bolts also pass through blocks or thimbles 6, 6o interposed between the base-ring 3 and the base 1. Placed over these blocks and resting just upon the base 1 are collars 7, between which and said blocks are driven wedges 8, for a purpose to be hereinafter stated. At the inner edge the base-ring 3 extends upward, as 3, (see Fig. X,) and in this extended or enlarged portion is formed a dovetail groove 3b, which is inwardly and upwardly inclined. This groove is filled with a suit- 7o able filling of refractory material a, that is of low conductivity of heat and that is not easily destroyed by the molten metal-such as tire-clay, asbestus, black-lead, ttc. The enlarged inner side of the base-ring 34 iits 75 into a rabbet-groove formed in the under side of a ring Q, which in turn tits into a rabbetgroove formed in the under side of a similar ring l0, which rests upon it, and these rings 3, 9, and 10, together with an upper ring ll, 8o into a rabbet-groove, in the underI side of which the top of the ring 10 fits, constitute the casing of the mold'. At its lower inner edge the upper ring ll is provided with a dovetail groove 12, which is inwardly and downwardly inclined, and this groove is also filled with a refractory substance similarto that in the groove i3 in the base-ring. Ther exposed surfaces of these refractory fillings may be either curved, inclined, or otherwise 9o conformated, according to the kind of edge the rim of the wheel is to have. Formed integrally with the top ring 1l, and extending upwardly therefrom, are the pouring-gates 13. Vents 14; are also formed in this ring. 95

Screwed into the center of the base 1 is a standard 15, onto the lower end of which is screwed a nut 16. At the upper end of this .shaped support 17.

standard is formed a disk-shaped support 17, and extending from the upper end of said standard downwardly is a bore 15, which at its lower end opens outwardly'through the side of the saine.

The internal parts of the mold proper consist of segments 18, having wedge-shaped ends, (and so I will term them wedge-segments,) and sectional segments horizontally divided, the upper sections being' numbered 1U and the lower sections 20. These segments are arranged alternately around the inside of the mold and they form the inner face of the rim of the wheel being cast. The lower ends of the lower sections 2O are provided with inturned flanges 20, which afford a better support for these sections than were they formed without them. Now the purpose of the collars 7, before referred to, is to retain these lower sections in position iixedly in the mold, and to this end the collars are provided with screw-threaded pins 7 which are screwed into these sections, and when the wedges 8 are driven between the collars and the thimbles G these sections 2O will be held rigid, as stated, as they are not intended to be removed in practice. The upper ends of the lower sections and the lower ends of the upper sections are provided with inturned flanges 21, which are grooved transversely at 21a t0 receive the outer ends of the spokes. rlhe inner ends of the spokes rest upon the disk- Connecting the lower sections 20 to the standard 15 are spiral springs 22.

The bore 15 of the standard 15 constitutes a socket to receive removably a post 23, projecting centrally from the under side of a disk 24. The purpose of leading the lower end of this bore or socket outwardly is, that if any dirt be lodged therein it will be forced out by the insertion of said post. Connecting the upper sections 19 to the disk 24 are spiral springs 25.

There are two ringsan upper one 2G and a lower one 27-with wedges 26 and 27 cast on the outside thereof, the inclined faces of which engage, respectively, the ripper and lower inclined faces of the wedge-segments. The upper wedge-ring 26 has hooks 28, which engage with projections 29 on the upper sections 19 of the sectional segments, while the upper ends of their wedges 2G*L engage with the lips or flanges 30 on the upper ends of the wedge-segments 18, and thus when the lifting-chains 31 are raised by suitable power these parts are lifted from thc mold. 'lhese liftin g-chai ns are connected with the hooks 28.

A pair of rods 32, screw-threaded at their lower ends and having eyes at their upper ends, screw into lugs 32 on the lower wedgering and extend up to t-he top of the mold, and are used in setting' up the mold. Hooks and chains are attached to their upper ends and power is applied bypulley-blocks or any well-known mean s (not necessary to be shown) to lift the lower wedge-ring into position, eX-

panding the lower ends of the segments 18 and 20 to place. The abutting edges of the wedge-segments 18 and the alternate sectional segments are beveled, so that when t-he wedge-segments are forced out they will also force out the alternate sectional segments. The rods 32 are held in the above-stated manner until the two rods 33, which are screw-threaded at their upper ends to receive nuts 33, by which they are secured to ring 2G, and at their lower ends are hooked, (the hooks 3a engaging the underside ot' the lower wedge-ring) are adj usted and tightened by means of said nuts. These hooked rods 33 draw the two wedge-rings toward each other, and thereby expand the segments against the bottom and top outer rings of the mold. The hooked ends of the rods 33 pass through the base or bed-plate of the mold, and one of them is connected with a tripping-treadle 35 by means of a chain 36, so that it may be disengaged from the lower wedge-ring by pressing the treadle with the foot, and the other rod 33 may be released simultaneously by hand, and the removable parts may then n be lifted. Another form of device is shown in Figs. XIII and XIV for this purpose. The hooked end of one of the rods is shownin engagement with a projection l) on a bar ct, which is arranged underneath the bed-plate and extends from side to side, one end sliding in a housing` c and the other end being pivoted to one end of a bell-crank (l, which is pivoted to the under side of the bed-plate. The hooked end of the other rod 33 is engaged with `the other end of the bell-crank. rlhe end. of the bar that slides in housing c, it will be seen,projects beyond the bed-plate.

Then this end is struck by a hammer, the

force of the blow, acting through this device, will detach both hooks from the lower wedgering simultaneously. Connecting the upper ends of the segments is a chain 37, which passes completely around the inner side of the mold and holds the segments together side by side when they are lifted. Dowelpins 38 on the lower ends of the upper sections of the sectional segments fit into holes in the upper ends of the lower sections. The segments are grooved at 38, so as to form a rib on the inner side of the riin.

In practice a quantity of the intermediate outer rings 0 and 10 are provided, of different heights, smaller ones being' used when a narrow rim is to be cast. (See Fig. III.) This will necessitate Vthe raising of the outer basering 3 according to theheight of the intermediate rings, which is done by interposing TOO IIO

more thimbles or blocks (l between it and t-he bed-plate. I do not restrict myself to the number of outer rings employed at a single casting, as the number maybe varied according to the size of pulley to be cast. The other parts of the apparatus are suited for all widths of pulleys.

Figs. XI and XII show means for casting pulleys with two sets of arms. Each alternate segment is cut horizontally on the same plane for one set of spokes. The remaining segments are cut horizontally on a higher or lower plane for the other set of spokes. The other parts of the mold, with the following except-ions, remain the same: The central standard l5 has at its upper end a disk 39, having on its rim a series of projections 4:0, forming extensions of the flange il. The flange -tl between the projections is notched to receive the inner ends of one series of spokes, and the upper ends of the projections @t0 are provided withnotches 42 to receive the inner ends of the other series of spokes.4 Provision for four arms in each series is shown; but I do not limit myself to this number. For holding the segments in line long rods 43 are employed instead of dowel-pins, and these pass through flanges 4st on the inner face of each segment, two or more being employed. This is considered essential where every seg-v ment is cut in two horizontally. In this form of in old the top sections of each segment only are removed after the pulley is cast.

IIaving thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

l. In a mold for wheels and pulleys, the combination of the internal parts and the built-up casin g composed of upper and adjustable lower and intermediate interchangeable rings, said lower ring having means of vertical adjustment, whereby rims of different widths may be cast, substantially as set forth.

2. In a mold apparatus, the combination, with the bed-plate and internal parts, of the outer interchangeable rings of different widths constituting the casing, interposed block or blocks -between the lower ring and the base-plate, and a fastening for securing the lower ring, blocks, and base-plate together, substantially as set forth.

3. In a mold apparatus for wheels and pulleys, the combination, with the bed-plate and internal removable segments, of the casing made up of a series of interchangeable rings of different widths, and interposed interchangeable blocks between the lower ring and thebase-plate, whereby rims of different widths may be cast, substantially as set forth.

4. In a mold apparatus, the combination, with the bed-plate and the internal parts, of the casin g consisting of upper and lower rings and interchangeable intermediate rings and interchangeable blocks interposed between the lower ring and the base-plate, substantially as and for the purpose set forth.

5. In a mold apparatus, the combination, with the bed-plate and the internal parts, of the outer interchangeable rings constituting the casing,interchangeableinterposed blocks between the lower ring and the bed-plate, bolts passing through the bed-plate, blocks, and the lower ring, and nuts screwed onto the lower ends of the bolts, substantially as set forth.

G. In a mold apparatus, the combination of the casing and the internal segments, .a series of alternate sections being divided horizontally and provided with grooves to receive the spokes, substantially as set forth.

7. In a mold apparatus, the combination of the easing, the bed-plate, the internal segments, each alternate one being divided horizontally and provided with grooves to receive the spokes, interposed blocks between the casing and the bed-plate, suitable means for securing the blocks to the bed-plate, collars fitting over said blocks and having screwthreaded pins screwing into the lower sections of the divided segments, and wedges driven between the collars and blocks, substantially as and for the purpose set forth.

8. In amold apparatus, the combinationof the casing consisting of upper and lower rings and interchangeable intermediate rings,

means for supporting the casing at diiferent y heights, and the intermediate segments, every alternate one of which is horizontally divided and provided with grooves to receive the spokes, substantially as and for the purpose set forth.

9. In a mold apparatus, the combination of the casing, the wedge-segments, the alternately-arranged divided segments provided with grooves to receive the spokes, and means for engaging the inclined portions of said wedge-segments and expanding all the segments outwardly, substantially as set forth.

lO. In a mold apparatus, the combination of the easing, the wedge-segments, the alternate divided segments provided with grooves to rcceive the spokes, the upper and lower wedgerings adapted t-o engage the inclined portions of the wedge-segments, and devices for forcing said wedge-rings toward each other, substantially as set forth.

ll. In a mold apparatus, the combination of the casing, the whole segments, andthe alternate dividedsegments provided with grooves to receive the spokes, a central standard, and springs connecting the lower portions of the divided segments to said standard, substantially as set forth.

I2. In a mold apparatus, the combination of the easing, the whole segments, the alternate divided segments provided with grooves to receive the spokes, a central standard having a socket at its upper end, a disk at its top, an upper disk, having a post projecting downwardly and fitted loosely in said socket, and springs connecting said standard and upper disk to the divided segments, substantially as set forth.

13- In a mold apparatus, the combination of the casing, the whole segments, the alternate divided segments provided with grooves to receive the spokes, a central standard having a socket or bore extending downwardly and out through its side, a disk at the top of t-he standard, an upper disk having' a post projecting downwardly and fitted loosely in.

IOO

IIO

said socket or bore, and devices connecting said standard and upper `disk to the divided segments, substantially as set forth.

14. In a mold apparatus, the combination ot the casing, the whole segments the alternate divided segments provided with grooves to receive the spokes, the upper and lower inner rings having means for securing them together and forcing said segments outwardly, projections on the upper ring, and projections on said segments, with which the latter engage, substantially as and for the purpose set forth.

15. In a mold apparatus, the combination of the casing, the inner seglnents having projections, the lifting-chains, a ring suspended thereby, and projections on said ring engaging the projections on the segments, substantially as set forth.

,16. In a mold apparatus, the combination of the casing, the whole segments, the alternate divided segments provided with grooves to receive the spokes, the lower portions of which are fixed, a chain connecting the upper ends of the whole segments and .the upper divided segments together, and means for lifting the former and latter, substantially. as set forth.

17. In a mold apparatus, the combination of the casing, the inner segments, alternate ones oi" which have wedge-shaped ends, wedgerings engaging said ends, hooked rods secured at their upper ends to the upper wedgering, the hooked ends engaging the under side of the lower wedge-ring, and means for releasing the hooks of said rods from the lower wedge-ring, substantially and for t-he purpose set forth.

I8. In a mold apparatus, the combination of the casing, the inner segments, alternate ones of which have wedge-shaped ends, wedgerings engaging said ends, hooked rods secured at their upper ends tothe upper wedgering, the hooked ends engaging the under side of the lower ring, a sliding bar having a projection engaging' one of the hooks, and a bell-crank, to one end of which said bar is pivoted, the other end of said bell-crank having engagement with the other hook, substantially as and for the purpose set forth.v

JAS. W. HILL.

Witnesses:

E. C. ELY, GEO. H. FORBES.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030141500A1 (en) * 1999-08-31 2003-07-31 E Ink Corporation Transistor design for use in the construction of an electronically driven display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030141500A1 (en) * 1999-08-31 2003-07-31 E Ink Corporation Transistor design for use in the construction of an electronically driven display

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