US98504A

US98504A - Improvement in gauge and dividers

Info

Publication number: US98504A
Authority: US
Publication date: 1870-01-04
Anticipated expiration: 1887-01-04

Description

and left-hand screws, S and S.

t-uned' 55mm @wat dimitir.

Letters Patent No. 98,504, dated January 4, 1870.

IMPROVEMENT IN GAUGE AND DIVIDERS. y

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

To whom it may concern Be it known that I, GEORGE KENNY, of Nashua, county of Hillsborough, and State of New Hampshire, have invented -an Improved Divider and Combination Gauge; and do'hereby declare the following to be a full, clear, and exact description theieorefereuce being had to the accompanying drawing, in which- Figure l is a plan view of my improved gauge; Figure 2 is a longitudinal section of same; and Figure 3 is a section of guideblock. The object of my invention is to produce a combined divider and gauge for carpenters and others luse, which shall possess the advantages of the ordinary gauge, the splitting-gauge, aud a dividing-gauge,

for marking mortises and other purposes.` v l The nature of my 'invention consists in a dividinggauge, formed by two points, one each side of a iixed point, actuated by a right-andrleft screw, so that in settingv the gauge, the points are -mov'ed equidistant from the iixed point; also, in a double screw, one point of which forms a splitting-gauge; and in the combination of an adjustable dividing-gauge, ordinary gauge, and splitting-gauge.

In the drawings-J A is a cylinder, and is the gauge.

B is the gauge-block, adjusted by set-screw C and clamp C'. This clamp prevents the screw injuring the cylinder.

E is a fixed gauge-point, as in ordinary gauges.

d is also a fixed point, opposite E.

a and b are vmovable gauge-points, equally distant in opposite directions from d.

Passing through the bases of points alb, are right 'lliese screws turn in journal i, and' are operated by knob D.

K K are set-screws, the use of which is to tighten the working of knob D, or a piece of leather may be placed under screw S if it turn too loosely.

witnesses,

VIt is a double screw, serving as a head to prevent block B from slipping off the cylinder, and as a. splitting-gauge when reversed.

The points a b move in slotsvm. y

The cylinder is provided with a scale, so that by simply turning knob D, the points a l) are readily set at'any distance desired from' fixed point d. 'lhe advantages of this are apparent, especially when it is desired to strike out mortises, for the point d, being the centre, the workmen can at onceplace the point of the bit upon the centre.

r The advantages of the whole combination are obvious, from the fact that one topl takes the place ofthree.

The operation is simple, the construction reasonably cheap, and the tool durable.` y I am aware that no novelty exists as to the cylinder in a gauge, or to the block B,.turning upon the cylinder or to the clamp C'; but

What .I claim as my invention, and desire to secure' by Letters Patent, isv l. A dividing-gauge, consisting of adjustable points a. b, 1ightand1eft .screws S and S', fixed point d, in combination with cylinder A, substantially as shown and described,

2,. The combination of a dividing-gauge, consisting ofthe partsset forth in rstclaim, Asplitting-gauge point It, and an ordinary gauge, consisting of parts A B E, substantially as shown and described.

. In testimonyv whereof', I have signed my namefto this specification, in the presence of two subscribing GEORGE KENNY.

Witnesses CARROLL D. WRIGHT, AUSTIN S. HOWARTH.