US1407791A

US1407791A - Reenforced flange for flanged products

Info

Publication number: US1407791A
Application number: US385414A
Authority: US
Inventors: Edward J Fowler; Kellie Charles
Original assignee: Pacific Foundry Co
Current assignee: Pacific Foundry Co
Priority date: 1920-06-01
Filing date: 1920-06-01
Publication date: 1922-02-28
Anticipated expiration: 1939-02-28

Description

' E. 1. FOWLER AND'C. KELLIE.

REENFORCED FLANGE FOR FLANGED PRODUCTS- APPLICATION FILED JUNE 1| 1920. 1,407,791 Patented Feb. 28, 1922.

2 SHEETS-SHEET 1.

INVENTORS. dhwwz ,2 ow M BY Fisflow/ M A TTORNEYS.

E. J. FOWLER AND C. KELLIE.

Patented Feb. 28, 1922.

2 SHEETS-SHEET 2- I STATE eAram orFIcE.

EDWARD .1; now ere, or nnnwoonoirY, Ann Canar es. Karma, orv sen manners/co, LIEdRliiAi hlSIGNQRs pro reorrio rounneY'coivrranY, or SAN rn enorsoo,

-ram. dqaraew a O Mummie- 'nnnnro tonn FLANGE ro'n rnenenn rnomrorrs.

' APPIZFaUQ means: 1,

. seat at! a iQiiiia an the Said K LL a h r'eesil qe ety Qt li ae e a tat f c hamaa e y we certa new and ieeh l r vemee 1in ie n d F a es e llee Ili eilu e Qf-whi h t f l s Isa p ati'ae Our invention relates to flanged products, ash. q r zemizlaas metal fit ng cempri iee lli irsfl h, etesees maths like; t alve pamrewme an ethe p fil w ayi flan-se u nve ti n. s e p ially pl c b t pro a tesead f ie atire y biri lem ta lley .1 for e eler ee these al known as silici de irons or high silicon acid esis in me als maiden. J1em a ndm lingical arts. I g

T Zu t6 t P e en e, of silic n n h e ll ys. 0 E i e alej he flan pr eets made from them are not strong enough to i t the ressese be tias nd n. ca n itisfo und that blqwhe son porous spots often occur, particularly in the relatively thicker portion where the flange joins the body of the casting. g

It is the object of our invention to improve said flanges in these and other respects, and to this end our invention consists in the novel reenforced flanged proclucts which we shall hereinafter fully describe, by reference to the accompanying drawings in which- Fig. 1 is an elevation, partly in section, showing our reenforced flanges in a T- fitting. I

Fig. 2 is an elevation, partly in section, showing our reenforced flanges in an elbow fitting.

Fig. 3 is a similar elevation, showing the reenforced flange at one end of a pipe.

Fig. 4 is an end view of any of the products of Figs. 1, 2 and 8.

Fig. 5 is a face view of the front coremember.

Fig. 6 is a face View of the rear'core member.

Fig. 7 is a face View of the inner coremember.

Specification of Letters Fatent. i' 'afignfed Feb, 28 1 92 2 1920. semi 110,385,414.

Fig. 8 is an. end view of one of the bolt.

hole:core-members. I Fig 9 is an end View of the bore coremember. i r

' Fig. 10 is a diametrical sectional view of the several core-membersassembled, and showing the reenforcing flangemember fitted therein, the dotted lines indicating the mold in which the assembled core is set in order to pour a product, such as the pipe ofFig. T i

ig.-11: is an elevation of the pattern from which the inold is made. i I i I i In Fig. 1, the three arms of the T-fitting 1 are,provided each with a. flange 2 having bolt-holes 3. I

'At the back of each flange is the reenforcing member 4 with bolt-holes 5 registering with the bolt-holes 3 of the flange 2.

elbow fitting 6 of Fig. 2 has similar flanges and 'reenforcing members, and these parts, for the sake of uniformity, are similarly identified by the

numerals

2 and 4 with bolt-

holes

3 and 5 respectively.

The pipe 7 of Fig.8 is similarly flanged and its flange reenforced'; and the same designating numerals are used.

J point to be notedis that the reenforcing member 4 is slightly shouldered into the fitting or pipe at the junction offlange and body, as shown at 8. This, though not essential, is advisable, in that it furnishes greater stability to the union of flange and reenforcing member.

The body and flanges of the fittings of Figs. land 2 of the pipe of Fig. 3 are cast from alloy or metal known in the art as silicide iron or high silicon acid resisting alloy ormetal.

These silicide or silicon metals, though of varying composition, are mixtures of iron, silicon, carbon and other substances, and are used for casting apparatus and parts employed in chemical and metallurgical arts on account of their acid resisting properties. But the flanges of such castings are relatively brittle and are liable to break under handling in service, and especially are they weak and ill adapted to bear the stresses of bolting. They also tend to include porous spots or blow holes.-

The reenforcing member 4: may be any suitable metal, but that which we employ is a plain iron casting which we shall term gray iron. It is applied to and associated with the flange in the process of casting the product, by the method which we shall presently describe.

The application of this gray iron reenforcing member to the relatively brittle siliconiron flange of these fittings and other similar flanged products, such as pipes, valves, pumps, etc., results in three marked advantages.

First, it gives additional strength to the silicon-iron flange and avoids the difiiculty arising from breaking in bolting and in handling in service.

Second, in the casting process the silicon iron flange is chilled when being poured against the gray-iron flange, so that there is no difliculty from porous spots or blowholes. 7

Third, it closes the grain of the siliconiron, thereby making it more acid-proof.

In order to demonstrate the practicability of manufacturing our ree'nforced flanged products, we oifer the following as a preferred method. We first cast the gray-iron flange 4: of a thickness suitable for the purpose; then we introduce said gray-iron flange into the assembled core and bake the latter with said flange in it; then we place the core in the mold; and finally we pour the mold so that the silicon-iron flange is cast directly to the gray-iron flange.

These steps in detail, or as many of them as are required for a clear understanding, are illustrated in Figs. 5-11., and are as follows: V The gray-iron flange 4 is cast in a separate mold, by ordinary processes, and is provided with correct bolt-holes.

A core is prepared to make whatever product is intended. In the present case we have illustrated the making of a simple flanged pipe, such as shown in Fig. 3. This core comprises the following separately prepared core-members, namely, thefro'nt coremember 9 of Fig. 5, the back core-member 10 of Fig. 6, the inner core-member 11 of Fig. 7, the bolt-hole core-members 12 of Fig. 8, and the bore-core-member 13 of Fig. 9. 7 These several core-members are assembled into a core as shown in Fig. 10 and in the assembling the gray-iron reenforcing flange 4 previously cast is inserted and included as shown.

The assembled core of'Fig. 10, with its included graydron flange is then baked.

A pattern 14, such as is shown in Fig.

11, is "used to make the mold 15, indicated in Fig. 10, and in this mold the assembled core with its included gray-iron flange is put in suitable position to make the pipe. The mold is then poured and the silicon iron flows against the graydron, with the results heretofore described. We claim: 7 7 1. Flanged productsof silicon iron having a reenforcing member of iron against which the flange of said products is cast. 2. Flanged products of silicon iron having a. reenfoicing member of iron associatedwith their flanges, said member being shouldered into said product at the junction of its flange and body. Flanged products having a reenforcing member against which the flange of said products is cast, said member'being shoul- I dered into said product at the its flange and body.

In testimony whereof We have signed our names to this specification.

junction of EDWARD J. FOWLER. oH RLEs ELLIE.