US86308A

US86308A - Robert e

Info

Publication number: US86308A
Authority: US
Publication date: 1869-01-26
Anticipated expiration: 1886-01-26

Description

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ROBERT E. JONES, OF `New YORKQN. Y.

Lette/rs Patent No. 86,308, dated .Tanna/ry 26, 1869.

The Schedule referred to in these Letters Patent and making part of the Ilmo.

To all whom it 'may concern:

Be it known that I, ROBERT E. J ONES, of the city, county, and State of New York, have invented a new and useful Adjustable Female Gauge; and I do hereby declare that the following is a full, clear, and exact description ofthe same, reference being had to the accom# panying drawing, forming a part of this specification,

in Whch- A Figure l represents a longitudinal View of an adjustable female gauge, constructed according to my invention, and

Figure 2, a transverse section of the same.

Similar letters of reference indicate corresponding parts in both figures.

This invention is designed for ascertaining accurately the size of cylindrical and other circular objects during the forming or finishing up ofthe same, or under any circumstances; and i It consists in the construction of. a female gauge, with a narrower opening intersecting its circular gauging-Opening radially, in a direction parallel with the axis thereof, and with a graduatingscrew, whereby the size of the gauge may be varied to some extent by the turning of the screw. i

In order that others may understand the construction and operation of my invention, I will proceed to describe it with reference to the drawing.

A is ,a female gauge, consisting, like the ordinary female gauge, of a piece of steel or other metal, of circular or other form, with a circular opening or hole, B, formed through it, but having provided in it, in addi- V tion to said circular opening, in which the gauging is opening radially, and parallel with its axis, said slit passing entirely-through the metal ou one side of the circular opening, as shown at c, and only partially through on its opposite side, as shown at c', leaving but little substance upon the latter side toform a neck, a.-

Said neck a holds the two equal parts f f of the gauge in their relative positions to each other, with such degree of elasticity as may be imparted to it by the nature of the metal from which the gaugeis constructed.

Through the two halves or parts f f of the gauge, and at the opposite side of the circular gauging-hole B to that on which the neck a is situated, and square across the slit c, lis provided a screw-hole, e, for reception of au adjusting-screw, al, the screwing up of which will produce a diminution ofthe size of the gauging-opening B, by the drawing towards each other of the two halves f f of the gauge, and the unscrcwing of which will permit the expansion ofthe two halves f f of the gauge, and the enlargement of the said opening, by

means of the elasticity of the neck a..V v

What I claim as my invention, and desire to have secured by'Letters Patent, is

The female gauge A, constructed with a slit, c c', intersecting its gauging-opening B., as described, and furnished with an adj usting-screw, d, operating substantially as herein described.

ROBERT E. JONES. Witnesses:

FRED.' HAYNES,

A., KINNIER.

performed, a narrow slit, c c', intersecting said circular ,K