US111091A - Improvement in collapsing core-barrels - Google Patents

Description

"lutcd tant WtLLIAM surta, or rrrrscuae, PENNSYLVANIA.

Letters Patent No. 111,091, dated January'l?, 1871.

IMPROVEMENT IN COL-LAPSVING CORE-BARRELS.

The Schedule referedto in these Letters Patent: and making part of the same.

To all whom 'it may concern:

, 13e it known that I, WILMAM Sitten, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Oollapsng Oore-Barrel; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters ot' reference 'marked thereon. v

The nature of my invention consists in a core-barrel constructed in'sections, two of which are hinged together and held to the desired diameter, through the medium of a wedge-shaped section, and contracted or collapsed by drawing the wedge-shaped section eudwise.

To enable others` skilled in the art to make and use my invention, I will proceed to describe more fully its construction and operation.

f In thel accompanying drawing which forms part of my speciiication. i

Figure l is a side and vertical elevation of my improvement in collapsing core-barrel;

Figure 2 represents a vertical elevation ol"- an ordinary core-box, when opened out.

Figure 3 is a vertical section of the core-barrel and its box when arranged on' a base preparatory to ramming the sand around the barrel.

Figure 4 is an end view of the core-barrel. Figure 5 is an end ,view of the core-barrel and its box. i

In the accompanying drawing-- A and l5 represent the two main main sections of the core-barrel, and are hinged at C, as shown in tigs. 4 and 5, and are also provided with slides or grooves, as indicated at D, in which move tongues X of the wedge-shaped sect-ion E.

To the back or inner side ot the section E are attached two chains, f, whichare connected to two chains y, which are attached to" the sections A and B at 7L.

The wedge-shaped section E has three parts inL clined, to wit, the two edges and the inner side. This is clearlv indicated in lig's. 1, 4, and 5.

This arrangement of iuclines will cause the edges d m of sections A and B to press against the edges a ot' section E, when drawing it `endwisefor the purpose ot collapsing the core-barrel.

In preparing the core, the vseveral sections of the core-barrelvare arranged with the wedged section E in the position between the sections Aanzl B, as shown in tig-.1. p

The core-barrel is thenv placed on the basel, and the core-box placed around it, as shown in fie'. 3. The sand is then rammed around the core-barrel in the usual manner. i

The core-barrel may be constructed of wrought or cast-i1'ou,and should bc'i'urnishedwith perforations or vent-openings, as indicated at S. i

The core-barrel is collapsed by drawing the wedgeshaped-section E ondwise, as indicated in tiff. 3, which,

drawing on the chains f and g, will draw the sections A and B in, so as to contract or diminish the diameter of the core-barrel that it may with case and facility be withdrawn from the pipe or -other casting.

By making the 'surface of the core-barrel without the openings S, .and giving the wedge-shaped section a greater inclination on the parts described, and coating the eorefbarrel with asuitable material, it may be used as a hollow metallic core,the advantage of which will be apparent tothe'skilled melder and manufacturer of pipe and other tubular castings.

Having thus described the nature, construction, and operation of my improvement,

Wha-tl claim is- A core-barrel, one section of which is provided with three inclinations and moves in slides or grooves, and connected to the othersections of it by means oi' chains or t-heircqnivalent, the whole being so constructed and arranged,tl1at, by drawing cndwise the sections 'with three inclinations, it will collapse or diminish the diameter ot' the core-barrel, as herein described.

'TILLIABI SMITH.

lVit-nesses:

A. C. J onNsl'oN, .Tantas J. JonNsroN.

Images