US1656371A

US1656371A - Manufacture of cast-steel chain

Info

Publication number: US1656371A
Application number: US720036A
Authority: US
Inventors: Fawcett Leroy
Original assignee: National Malleable and Steel Castings Co
Current assignee: National Malleable and Steel Castings Co
Priority date: 1924-06-14
Filing date: 1924-06-14
Publication date: 1928-01-17
Anticipated expiration: 1945-01-17

Description

' Jan. 17, 1928. 1,656,371

L. FAWCETT MANUFACTURE OF CAST STEEL CHAIN Filed June 14. 1924 2 Sheets-Sheet l INVEN TOR.

ATT RNEY L. F AWCETT MANUFACTURE OF CAST STEEL CHAIN Jan, 17, 1928.

Filed June 14. 1924 2 Sheets-Sheet 2 Fwd I INVENTOR.

BY Z w ATT k'NEy Patented Jan. 17, 1928.

UNITED STATES I 1,656,371 PATENT OFFICE.

LEBdY FAWGET'I, SHARON, PENNSYLVANIA, ASBIGNOR TO NATIONAL MALLEABLE AND STEEL OABTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

MANUFACTURE or CAST-STEEL (mam.

Application filed June 14, 1924. swarm. 720,035.

Fig. 1 is an elevation partly in section of meld sections employed in and embodyin my invention; Fig. 2is a side elevation 0 one of the mold sections; Fig. 3 is a section on lines III"III of Fig. 2, the position of one of the complementa sections being in dicated in dotted lines; ig. 4 is an elevation of another side of the mold section shown in Figs. 2 and 3; and Fig. 5 is a plan of assembled mold sections showing the connection of preformed chain sections by the casting of intermediate sections.

My invention relates to the making of caststeel chain links in the form of a continuous chain for which the mold parts are so arranged that a plurality of ser1es of links may be poured at one time, the varlous series bem secured together by other links or series 0 links to form a continuous chain.

My invention also comprises the various features which I shall hereinafter describe and claim. I 1

Referring to the drawings, in Fig. 1 I have shown my invention applied to the simultaneous casting of two series of chain links or sections of chain, each set of molds being arranged to receive a section of chain comprised of nine links, which may be all poured at the one time. The molds are comso prised of the

mold sections

2, 3; 4 and 5, which are of the uarter section type, in which similar part ink impressions 6 of a number of links are all formed upon the face of a section. The top section 2, as is shown in Figs. 1, 2, 3 and 4, has two series of feeder partumpressions 7 the intermediate sections 3 and 5 have each one series of feeder partimpressions 7 complementary to the partimpressions 7 in the section 2, while the hottom section 4 has none. Arranged in the top edge of the mold section 2'is a runner cavity 8, which leads, through the cavities 9 in the cover sections 10, to the feeder impressions 7 for each link. Each pair of the cover sections 10 has a sprue 11 leading downward into the runner cavity 8. If desired, two sections of. chain may be poured at the same time by arranging a pair of mold sections 12 with 'a' curing cup 13 mounted thereon brid ing tlif the sets of sections. xtending through the bridge sections 12 is a runner cavity'14 connecting with the sprues 11 of each set ,of molds. This arrangement permits the pouring of two sections of chain simultaneously.

e space between The

facesof quarter sections

2, 3, 4 and 5, in which are formed the link impressions 6, are arran ed at about 45 to the vertical, which ena les a uniform flow of metal into the top edge of each link impression 6 in the axial plane of such impression, and thereby results in the production of sound links.

The quarter-

sections

2, 3, 4 and 5 are mounted in the trough or V-shaped stands 15, so as to properly support the quarter-sections when in assembled position. As is shown in Fi 1, the mold sections are equipped with dowels or projections 16 which seat in cooperating recesses 16 in complementary sections to ensure the assembly of such sections in their proper connected links of'a section of chain. Dur

ing the operation of casting such sections of preformed links the end impressions 18 are not in use and may, if desired, be filled with sand or omitted entirely.

To connect the cham sections A and 'B I "stance, assuming that the chain is cast in sections of nine links, such reformed nine- ,link sections A and B may t en be connected to ether bycastin other nine-link sections 0. mterlinking wit the end 17 of such preformed sections, as is. shown in Fig. 5.

' My invention is-particularly ap licable to the rapid production of cast stee chain in which links of moderate size are used by reason of m ability tocast a plurality of sections of c ain, each comprising a number of links, by a single pour of metal, and the rapidity of operation is enhanced b the sim licity of the mold sections, whic are rea ily made and assembled.

The terms and expressions which I have employed are used as terms of description and not of limitation, and I have no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described, or portions thereof, but recognize that various modifications are possible within the scope of the invention claimed.

What I claim is:

1. The process of making continuous cast chain which comprises forming a plurality of quarter link impressions in mold sections for adjacent interconnecting links the axes of which are arranged at the same angle to the vertical, and delivering metal to the upper edges of said link impressions in each of said adjacent impressions through feeders arranged in the axial planes of the said link impressions by a single pour, whereby a uniform supply of metal is distributed to each link impression.

2. The process of making continuous cast chain which comprises forming a plurality of series of quarter link impressions in mold sections for adjacent connecting links, assembling said mold sections whereby the axes of adjacent impressions are arranged at the same angle to the vertical but approximately at right angles to each other, simultaneously delivering metal to the upper portions of each of the impressionspf each such series by a single pour, then placing the links thus formed in end link lmpressions of similarly formed assemblies of mold sections and similarly pouring such assem' blies to form a continuous chain of links.

3. In molds for casting chain, quarter mold sections, each having on faces arranged at right angles to each other a plurality of quarter link impressions for adjacent interconnecting links, said mold sections when assembled forming complete link impressions for a plurality of interconnecting links, each link impression being arranged at right angles to adjacent link impressions, a feeder for each link impression, all of said link impressions being inclined at substantially the same angle to tile horizontal whereby a uniform distribution of metal in all the impressions is secured.

4. In molds for casting chain, quarter mold sections, each having on faces arranged at right angles to each other a plurality of quarter link impressions for adjacent interc connecting links, said mold sections when assembled forming complete link impressions for a plurality of interconnecting links, each link impression being arranged at right angles to adjacent link impressions, a feeder for each link impression, arranged in said mold section faces in the plane of said link impression and connecting with the upper edge of the said link impression,

a cover member provided with cavities connecting each of said feeders to a common horizontal runner, and a pouring cup for supplying metal to said horizontal runner.

LEROY FAWCETT.