US33291A - Heney a - Google Patents

Description

H. A. BILLINGS.

Power Molding Machine.

No. 33,291.A Y Patented Sept. 17,1861.

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UNITED STATES HENRY A. BILLINGS, OF PROVIDENCE,'RHODE ISLAND.

PATENT' OFFICE. il

POWER 'MoLDme-MAcl-'qINI-z.`

Specification forming part of Letters Patent No. 33,29! dated September 17, 1861.

To all whom t may concern:

Be it known that I, HENRY A. BILLINGS, of the city and county of Providence, and State of Rhode Island, have invented la new 4and useful Improvement in Power Molding- Machines; and I do hereby declare that the- The invention which is the subject of this patent is designed to facilitate the exercise of that part of the molders trade which is called match-plate work, by accomplishing, through the aid of mechanical agents, a majority or" the labor which has been usu- 'ally ,performed by hand. This branch of the trade has been Aordinarily exercised in the following way: The pattern is placed by the melder Within the molding-flask, upon what iscalled the molding-board, or the board which serves for the;bottom ox" the flask. The sand is then heaped upon th'e pattern, rammed down with a Wooden instrument,

. called a ra1n1ner, even with the top of the.

sides of the flask, and then the flask' is turned with its bottom side up. 4The board which served to support the pattern and the sand is then lifted .up,.when the patterns are disclosed embedded in the sand The melder. then removes the pattern from the sand, leaving thereby a matrix to be filled with the metal. Two asks, in each of which is an impression of a half-pattern, are then placed together, so that the impression in eachV exactly corre- Sponds, and the mold is, with the exception of some further preparation not necessary to be described, ready to be filled.

My invention is as follows: In the accompanying drawings, vA A represents the frame ofthe machine. An endlesstraveler, B B, extends the whole length of the machine and passesaround suitable rollers or chain-gears, U'U, lso that when motion is -givento the shaft .I the pulleys L and M, attached to the shaft of the' chain-gear, will be put in motion also; A flask, Fig. 2, constructed with 4flaring sides, as shown in the crosssection, Fig.

3, having the patterns arranged in position.

upon the molding-board, is now placed upon the traveler at the front of the machine. Up` on the frame-work K K is mounted the rocker N, the arms of which support the sieve G V. Molding-sand having been supplied to the sieve the belt a a gives'motion to the shaft R, which, through the connecting-rod Q, one end of which isV pivoted to the crank# plate I? at the extremity of. the shaft It and the other end to an arm on the rockershaft, oscillates the sieve. The flask, Fig. 2,

as it is carried by the traveler under the sieve C, is iilled with sand, and islconveyed toward the other end of the machine.. In its progress it encounters the fluted roller D, which is made to revolve from left to right by the toothed gear I working into the teeth of the pinion H on the end ofthe rollerat a higher speed than that of the traveler. The 'iluted edges of this roller bury themselves in the sand `in the flask and crush it against the sides and bottom of the flask, at the same time throw-- ing 0E the surplus sand in advance ofthe flask. The flask next passes under the cylindrical roller E, which. as it derives its motion from the same source as the ilutcd roller D1, revolves in the same direction. By this roller the sand in the flask is laid smooth and thoroughlycompressed.- The flask is now delivered at the rear of the machine and is removed by an attendant, after which the patterns are withdrawn and the matrix prepared to receive the metal in the usual way by hand-labor.

It 'is evident that any number of ilaskscan be successively passed through the machine, each one in turn Ybeing subjected to the several operations described.

In order that the traveler B B shall resist the pressureyof the rollers D and E, I place an unyielding frame-work or table underneath the rollers, and mortised or otherwise firmly secured to the frame A A of the machine, against which the traveler is sustained while the sand is being crushed in the flask. The journals of the rollers D and E are mounted in boxesl T, which are capable of sliding up and down between .the guides F F F, and are adjusted to any desired position by the screw-rods c c. Y

Instead of two compressing-cylinders, as shown in the drawings, one single cylinder may be with good advantage employed, in

l fwhich case it' should have o.' cylindrical surface. Iprefer, however, to use two cylinders,

the surface of one of which is tinted, 'as described, though the use of lone only, arranged in the combination shown by me, would be within the principle of my invention. 4

That I claim ais myix'ivention, and desire to secure by Letters Patent, is-

The combination of the endless traveler B B, the sieve G V, o1 its equivalent, with one on more colnpressing-cylinders, AD or E, such combination operating` vsubstantially as de- HENRY A. BILLINGS.

Witnesses:

J. W. MooRE, i T. H. PEABODY.

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