US676762A

US676762A - Pipe-molding apparatus.

Info

Publication number: US676762A
Application number: US4921301A
Authority: US
Inventors: Andrew H Mcneal
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-02-28
Filing date: 1901-02-28
Publication date: 1901-06-18
Anticipated expiration: 1918-06-18

Description

3 Sheets-Shed l.

Patented lune I8, IQOII.

A. H. MGNEL.`

PIPE MOLDING APPARATUS.

(Applictin e e 6 W53 f Y (No Model) Patented lune I8, I90l` 3 Sheets-Sheet 2.

A. H. MGNEAL.

PIPE HOLDING APPARATUS.

(Appxicatiunxmed Feb. 2s, 1901.)

(No Model.)

y. x, H,

Patented lune I8, |901. A. H. MGNEAL.

PIPE MOLDING APPARATUS.

' (Application md Feb. 2e, 1901. (No Model.)

3 Sheets--Sheet 3%.

THE 'mams pasas co. wno'muno, WASHINGTON, D, c,

NITED STATES arri* trier.

ANDREW II. MONEAIJ, OF BURLINGTON, NEIV JERSEY.

PIPE-MOLDING APPARATUS.

SPEGEFEECATION forming part of Letters Patent No. 676,762, dated J' une 18, 19'01.

Application filed February 28, 1901. Serial No. 49,213. (No model.)

T0 all m7110711/ if; may concern:

Be it known that I, ANDREW H. MCNEAL, a citizen of the United States of America, and a resident of Burlington, in the county of` Burlington and State of New Jersey, have invented certain new and useful Improvements in Pipedlolding Apparatus, of which the following is a specification.

Myinvention relates to pipe-molding appa-A ratus designed to form the enlarged or flanged end ofthe mold simultaneously with the body portion and at the bottom of the mold, so as to more certainly secure sound metal at such portion of the casting.

My improvements consist more particularly in the construction of the separate rotary former for the flanged or bell-mouthed end of the mold and its relation to the cop erating rotary body-former and the relatively fixed flask and base-piece.

The invention is fully described in connection with the accompanying drawings, and the novel features are particularly pointed out in the claims.

Figu re lis a cross-sectional elevation taken on the line :c 5c of Fig. 2, showing the lower end of the flask, the base on which the latter rests, the rotary flangeformer, and the rotary body-former, the latter being represented as lowered into engagement with the flange-former; and Fig. l is a similar view representing the rotary body-former as raised out cf engagement with the flange-former. Fig. 2 is a plan View of the flange-former seated in the base-piece, the flask and body-former being removed. Fig. 3 is asectional plan View of the body-former, taken on the line y y of Fig. l. Figs. 4 and fi are similar views to Figs. l and la, respectively, showing a modified construction 'for the forming of a bellmouthed pipe end instead of a flanged one, as in Figs. l and l.

A represents the flask, the lower portion of which is of increased diameter to allow for the formation of the flange or bell-mouthedV end of the mold.

B is the fixed base-plate or. ram ming-seat, formed with an annular seat Z), upon which rests the draw-ring A, clamped to the bottom of the flask, the rim of which latter is guided vertically in concentric standards b' o n the base-plate.

C is the rotary tubular body-former, having a camshaped profile in cross-section designed to compress the sand S outwardly, the main wearing-surface being preferably formed by removably-secured cam or pressing strips c, as set out in Patent No. 402,029,

issued to me and W. A. Stineruck jointly,l

said head or stock and rotated therewith to.

compress outwardly the sand S, forming the enlarged end of the pipe-mold, and acentering lug-engaging carrier or tongue F, secured to the head D, fitting loosely in the end 'of the body-former C and formed with vertical slideways fto engage the interior lugs c c on the lowered body-former, while permitting the latter to be freely raised out of such engagement, both of which positions are indicated in Fig. l.

The former-cams E for the flange of the pipe are secured, as shown, to an annular plate E', whichV lits loosely in the draw-ring A] and is carried by the rotary former-head D. The overlapping inner edge of the draw-ring A' forms a bottom support for the sand S and, as already stated, is removably secured against the lower face of the flask A, preferably by clamps e, the lower heads of which loosely enter clearance-slots h4 in the baseplate when the flask is in position on the lat ter. Connected escape-holes b5 are also provided in the base-plate to release any parti cles of sand that may get under the for1nerhead D.

In the slightly-modied construction indicated in Figs. t and La the former-cams E2 differ in shape from the former-cams E, previously described, so as to form the mold with a bell-mouthed end instead of a flange end, but are likewise carried by the rotary formerhead to form and pack the sand at the bottom ofthe mold, as desired. The construc- IOO tion of the flask A2 is substantially the same as that of flask A, Figs. l and l, being enlarged in diameter interiorly to provide sufficient sand for the formation of the bellmouthed end ot' the mold and similarly guided vertically in standards on the baseplate.

In operation the complete former-head is first placed in position in the recessed baseplate. The flask, with draw-ring A clamped thereto, is then centrally supported on it, and, finally, the rotary body-former is lowered into engagement withthe former-head and rotated with the latter until the sand supplied from above in any suitable manner is properly shaped and packed below, when the rotating body-former is gradually raised out of engagement with the former-head, carrying with it the sleeve C and completing the packing and sleckiug of the body portion of the mold.

In my improved apparatus it will be se'en that the cam pressing-faces upon both the enlarged head and upon the cylindrical bodyformer may be changed not only for the purpose of remedying wear, but also to vary the outside diameters either of the cylindrical body of the mold or of the flange or bellshaped portiou,or both. The body-formerbeing centered interiorly at its lower end upon the entering carrier portion F of the formerhead, the sleeker-sleeve C', as well as the pressing-cams upon the body-former C, may be varied in size, 'as desired, ample clearance being provided in the bore d of the formerhead, and the former-cams E being also readily changed to increase or decrease the flange or bell-mouth without involving any change in the flask, base-plate, or former-head.

Vhat I claim is- 1. A pipe-molding apparatus coinprisinga base-plate, a flask seated thereon, a vertically-movable cylindrical body-former, and a former-head rotatably seated in said baseplate and provided with forming-cams and a central carrier-boss adapted to center and to engage the lowered end of the body-former so as to be rotated therewith substantially as set forth.

2. In a pipe-molding apparatus the combination with a base-plate having flask-centering standards and a former-head rotatably seated therein and provided with a central carrier-boss, of a flask centrally seating on said base-plate, and a vertically-movable rotary body-former having its lower end centering on and engaging said carrier-boss of theformer-head substantially as set forth.

3. In a pipe-molding apparatus the combination with a base-plate, a flask centrally seated thereon, and a vertically-movable rotary body-former, 0f a rotary former-head seated in said base-plate beneath the flask, and provided with a central carrier boss adapted to fit within and engage the lower end of the body-former and an enlarged annular recess around said boss affording clearance-space for the sleeved end of the lowered body-former substantially as set forth.

4. In a pipe-molding apparatus the combination with a base-plate, a flask centrally seated thereon, and provided with a drawring clamped to the bottom face thereof, of a vertically-movable rotary body-former, a rotary former-head seated in said base-plate beneath the flask and adapted to fit within and engage the lower end of the body-former, au annular plate secured to said former-head and fitting between said draw-ring and the body-former, and forming-cams secured to said annular plate, substantially as set forth.

5. In a pipe molding apparatus the combination with a base-plate, a flask centrally seated thereon, and a vertically-movable rotary body-former, of a rotary former-head seated in said base-plate and provided with removably-secured forming-cams and a central boss adapted to engage the body-former substantially as set forth.

G. In a pipe-molding apparatus the combination with a base-plate, a flask centrally seated thereon, and a vertically-movable rotary body-former, of a rotary former-head seated in said base-plate and provided with forming-cams and a removably-secured central boss adapted to engage the body-former substantially as set forth.

Signed at Philadelphia this 21st day of February, 1901.

ANDRE W II. MCNEAL.

- lVitnesses:

E. C. RHoADs, JOHN THIEL.