US139372A - Improvement in druggists scales - Google Patents

Description

A. CYRA'NI & C. BEINHARDT.

Druggists Scales.

Patented May 27,1873\ IMF/Mar AM. PHOTO-LITHUGRAPH/C ca N1 ('osBom/E's moms) UNITED STATES PATENT OFFICE.

ALBERT OYRANI AND CHARLES REINHARDT, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN DRUGGISTS SCALES.

Specification forming part of Letters Patent No. 139,372, dated May 27, 1873 application filed March 29, 1873.

To all whom it may concern:

Be it known that we, ALBERT UYRANI andv fulcrum of the beam and its connections are raised only during the use of the scales; and it consists in providin g for the raising and lowering of the operating parts by means of a set-screw passing through a longitudinal slot in the hollow standard and entering] the rod which supports the fulcrum upon its upper end, by which means the operating parts may be raised and held firmly in position for use by said set-screw, having both hands of the op erator free to attend to the operation of weighing, in contradistinction to devices where the operating parts are raised and held in position for weighing by means of a lever, which must be held depressed by hand during the whole operation of weighing.

In the accompanying drawing, Figure l is a front elevation of a scale provided with my improvements; and Fig. 2, a vertical longitudinal section through the hollow standard, showing the fulcrum-rod and set-screw at tached in elevation.

Our improvement is intended more especially to be adapted to small portable scales for chemists and druggists use but it is also applicable to any size of scale in which the fulcrum is supported upon a rod sliding within a hollow standard.

The standard A is screwed into a socketpiece, a, in the base, upon which the scale is mounted in the ordinary manner; and it is hollow, to receive the fulcrumrod B, to the upper end of which the fulcrum b and indicator-scale b, both of ordinary construction, are attached. The axes of the beam 0 rest within grooves in the fulcrum bin the ordinary manner, and the beam is provided with an indicator, c, and with scale-pans suspended in the usual manner. The standard A is formed with a longitudinal slot, a, through which the set screw D, entering the fulcrum-rod B, passes. The head d of the screw D may be rigidly aflixed to it, or the screw D may be rigidly attached to the fulcrum-rod B, and the head at be made in the form of a nut turning upon the outer end of the screw to clamp or unclamp the parts. A washer, d, conforming to the outer surface of the standard A is preferably interposed between thelatter and the head or nut, d, closing the slot a, and forming an extended bearing against the standard A for the head or nut d.

It will be seen that the fulcrum-rod B, and consequently the operating parts of the scales, may be easily and conveniently raised or lowered and secured in any required position with in the limit of movement allowed by the longitudinal slot at, by means of the screwhead or nut d; and by this means the necessity of supporting the parts by hand during the use of the scale is avoided, as hereinbefore stated, and the apparatus is rendered more simple and compact in form. Since the screw D resting in the slot at prevents any lateral turning of the fulcrumrod B within the standard A, the bore of the latter may be made perfectly round, and the difficulty of forming a square bore, as heretofore, avoided.

What we claim is The screw D and head or nut d in combination with the fulcrum-rod B and longitudinal slot a of the standard A, for the purpose set forth, arranged and constructed substantially as described.

ALBERT OYRANL CHARLES REINHARDT.

Witnesses ARTHUR NEILL, AARAHAM LEVY.

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