US699175A - Apparatus for making cores. - Google Patents

Description

No. 699,!75. Patented May 6,. I902;

, a. J. uos xms.

v APPARATUS FOR MAKING CORES.

[Application filed Oct. 2, 1901.) 4

(No Model.)

FIG:I

WITNESSES.-

Afiomvers UNITED STATES GEORGE J. HOSKINS, OFSYDNEY,

PATENT OFFICE.

NEW SOUTH WALES, AUSTRALIA.

APPARATIU,S.FOR'MLAKING CORE'S.

SPECIFICATION forming part of Letters Patent No. 699,17 5, dated May 6, 1902. Application filed October 2, 1901; Serial No. 77,314. (No mocleL) To all whom it may concern.- Be it known that I, GEORGE JOHN HOSKINS, a subject of the King of Great Britain and Ireland, and aresident of Ultimo,-Sydney,

in the State of New South Wales and Commonwealth of Australia, have invented a certain new and useful Improved Apparatus for Making Cores for Cylindrical Castings, of which the following is a specification.

In giving effect to my invention the corebarrel is mounted on standards which are carried by a truck or traveler which runs on rails. Alongside the rail and parallel with the rail-track are standards'which carry a feed-hopper so disposed that the hopper shall be caused to feed its contents tangentially upon the core-barrel on the side-nearest the standards which support the feed-hopper. Impinging against the core-barrel at the point where the feed strikes it is a gauze-wire-cylinder which is mounted upon an adjustable oblique axis. The axis is carried by a fork which is attached to a long spring, which will insure a pressure of the gauze-wire cylinder against thecore-barrel. Below the gauze-wire cylinder is a trough which will receive the superfluous material and liquid which is fed from the feed-hopper above. A lever is provided whereby the action of the spring may be assisted and caused to press the wire cylinder more firmly against the Means are provided for rotat-j core-barrel. ing the core-barrel and, if necessary, imparting a forward movement tothe truck carrying the core-barrel; butin order that theinvention may be clearly understood refer-' once is made to the accompanying drawings,

in which Figure 1 is a front elevation of the appa ratus. Fig. 2 is an end elevation of the same.

A A are the standards.

B B is the truck, carried by wheels B B on rails b b.

The standardsA A support the core-barrel O, which'is rotated by any suitable means, the means adopted and shown in the drawings being-the axial motor D. Near the rails b b and parallel thereto are standards E E, which carry a feed-hopper F, which shall be so situated as to feed its contents (which consist of a mixture of mucilage, sawdust, and water) tangentially upon the feed-hop per. Mounted near and parallel to the rails 12 b is a fiat spring-support G, to the upper end of which is bolted a forked piece H, which carriesthe axis of a gauze-wire cylinder J. In operation the axis will always be oblique, itsobliqnity being regulated and adj usted' byhand, and when thus regulated it is secured in position by means of the nut It. Should the spring G be insuflicient to insure the necessary pressure of the wire cylinder J against the core-barrel C, such pressure may be transmitted to the cylinder J by pressing the lever-H. Below the gauze cylinder is a trough K, which is intended to receive the superfluous mixture which falls from the hopper and the liquid which is expressed from the mixture by the pressure of the wire cylinder J. i

It is believed that the rotation of the corebarrel 0 against the oblique wire cylinder J will cause the truck B to move in a forward direction; but means are provided whereby the forward movement of the truck shall be automatically insured. The means shown in the drawings consists of a counter-shaft L,

provided at one end with a bevel-wheel M, which gears with the bevel-wheel M on the- -motor-shaft, andat the other end with the pulley N,'band O, and pulleys P on the axle Qof; one of the truck-wheels B. The means for-rotating the core-barrel and imparting movement to the truck B may be greatly varied." The 'means shown in the drawings merely exhibits one way that the desired object may be efiected.

1 In Fig. l of the drawings the portion of the core-barrel to the right of the gauze-wire cylinder is shown covered with the sawdust composition, while the part to the left of the gauze-wire cylinder shows the plain surface of the core-barrel.

Having now described my lHVBDtlOHyWhEtlI Patent, is-

1. In apparatus for making cores for cylin drical castings, in combination, a truck or traveler running on rails the said truck having means for carrying the cylindrical corebarrel, a fixed feed-hopper placed near the said means for carrying the core-barrel as described,a fixed revolving wire cylinder mounted to rotate in contact with the core-barrel,

I claim as new, and desire to secure by Letters means for insuring the pressure of the wire axis of the core-barrel, means for pressing cylinder against the core-barrel, a trough bethe wire cylinder against the core-barrel, a low the wire cylinder and means for rotating feed-hopper above the point of contact of the the core-barrel, and for causing the forward core-barrel and cylinder and a trough below I5 5 travel of the truck all as herein specified. the cylinder, substantially as described.

2. In a machine of the class described, a In witness whereof I have hereunto set my support for a core-barrel, means for moving hand in presence of two witnesses.

said support in the direction of the axis of the GEORGE J. HOSKINS. core-barrel and for rotating said core-barrel, \Vitnesses: 10 a rotatable wire cylinder of less length than MANFIELD NEWTON,

the core-barrel having its axis inclined to the 'l. EDMOND OBRIEN.

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