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1. 发明专利

GB168375A Improvements in core boxes for foundry use 未知
公开(公告)号：GB168375A
公开(公告)日：1921-08-26
申请号：GB1438620
申请日：1920-05-26
申请人： EDWARD WILLIAM CLARK
IPC分类号： B22C9/10
摘要： 168,375. Clark, E. W. May 26, 1920. Core-boxes; cores.-An adjustable core-box is described with particular reference to the production of a core such as is shown in Fig. 8 for use in casting the piston shown in Fig. 9. The body W, Figs. 1 and 2, of the core-box is connected to the point-forming member P by screws 6 passing through an interchangeable annular distancepiece E. Rings 11 provide for varying the amount of metal in which grooves 10, Fig. 9, may be turned. Flanged discs 15 carry-members 20 according to the gudgeon pin bosses required. The members W, E, P are in halves, dowelled lugs 2, 3 providing for registration. Clamps 50 secure the assembly and at the same time hold the discs 15 in position. The member H slides in the upper part of the body and the position of the annular portion 25, Fig. 3, determines the amount of metal for the reception of the packing- ring grooves on the piston head. The position is adjustable by the flange 26 sliding on rods 23 and engaged by screws 24 provided with lock-nuts. The distance of the piston head from the gudgeon pin is determined by the adjustment of the member H at 36, 37, 39, When the.catch 40 has been engaged in the groove 44, relative movement of the members H , H is prevented. The member H has a central boss 30 and ribs 29 to produce the parts 30 , 29 , Fig. 9, and blades 45, 46 independently adjusted in slots in the member H provide for producing continuation ribs along the piston shirt. The blades in the plane of section, Fig. 2, are arranged to abut against the members 20. Flanges 48 provide a support for the box in inverted position for ramming.

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