USRE2341E - Improvement in balances - Google Patents

Description

UNITED STATES PATENT OFFICE.

REUBEN SHALER, OF MADISON, CONNECTICUT.

IMPROVEMENT IN BALANCES.

Specification forming part of Letters Patent No. 51,226, dated November 28, 1865; Reissue No. 2,341, dated August 21, 1866.

To all whom it may concern:

Be it known that I, REUBEN SEALER, of Madison, iu the county of New Haven and State of Connecticut, have invented a new Improvement in Veighiug-Scales; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a front view; Fig. 2, the same view with the dial removed to show the working parts; Fig. 3, a top view, the pan broken to show the working parts 5 and in Fig. 4 a side view.

My invention relates to an improvement in counter-scales, or such as are used for light weights, its object beiu g to reduce the friction upon the bearings. In the ordinary scales the bearings are so arranged that thearticle to be weighed increases the friction in proportion as the article is heavier, for the reason that the bearings support the weight. By my invention the bearings are arranged so that the weight upon the hearings is the same, or nearly so, under all circumstances, and consequently the friction is the same.

To enable others skilled in the'art to. construct and use my improvement, I will pro -a similar support, upon which the pan B is placed, but independent of the base A. The support F is placed at a little distance from the support E, as seen in Fig. 3.

Between the two supportsF andE are placed parallel bars G Gr,- resting in notches a, as seen in Fig.2, constructed in similar manner as the bearings of ordinary scales, and are prevented from displacement by a curvature upon either side, which pass outside of bars I and 1. (See Figs. 2 and 4.)

Upon the lower end of the bar I and upon the upper end of the bar I is formed a projecting arm, d, between which a spring, S, is

tixed, secured to each of the projecting arms (Z at the required tension, so that any article placed upon the pan B would depress the pan and extend the spring S in proportion to its weight.

To the support F a toothed rack, L, (see Figs. 2and 4,) is fixed, which gears into a pinion, a, (see Fig. 2,) to which the indicator D is attached, so that when the pan B is depressed the indicator D will be proportionately turned around the dial C,iudicating the weight or force of the depression.

The spring S may be arranged with screws for the purpose of adjustment in a common and well-known manner.

I do not wish to be understood as confining myself to any particular arrangement of the spring, but simply that it be so combined with the supports and parallel bars as to accomplish the object of my invention.

By this construction it will be obvious that the weight upon.the pan does not increase the friction upon the bearing to any extent as compared with the ordinary construction.

Having therefore thus fully described this invention, whatlclaim as new and uset'uhand desire to secure by Letters Patent, is-

The combination of the supports E and F, the parallel bars G, arranged substantially in the manner described, with a spring, S, or its equivalent, so as to operate substantially in the manner and for the purpose specified.

REUBEN SEALER.

Witnesses:

HENRY B. WILoox, GEO. N. WILCOX.

Images