US543323A - Computing-scale - Google Patents

Description

(No Model.) I

W. F. STIMPSON.

-' COMPUTING SCALE.

No. 543,323. Patented July 23, 1895.

. www 7.7 Y/Z/Nv/a'an/ www UNITED STATES PATENT QEEICE.

WALTER F. STIMPSON, OF MILAN, MICHIGAN.

COMPUTING-SCALE.

SPECIFICATIQN forming part of Letters Patent No. 543,323, dated J' uly 23, 1895.

Application tiled September Z5, 1894. Serial No. 524,107.l (No model.)

To all whom t may concern:

Be it known that 1,WALTER F. STIMPsoN, a citizen of the United States, residing at Milan, in the county of Monroe and State of Michigan, have invented certain new and useful Improvements in Computing-Scales, of which the following is a specification, reference being had therein to the accompanying drawings. A

The invention relates to an improvementin computing-scales; and it consists in the construction and arrangement of the parts hereinafter described and definitely pointed out in the claims.

In the drawings, Figure l is a front elevation of a scale embodying my invention. Fig. 2 is a perspective view of the scale, showing the beam turned at a different angle to the platform than that shown in Fig. 1. Fig. is a cross-section through the top of the pillar. Fig. 4 is a sectional perspective of a portion of the beam, and Fig. 5 isaperspective showing the manner of manufacturing the computing-table portion of the beam.

A is the platform, resting on the usual levers, (not shown,) and which are suspended in the frame B. At one end 0f. the frame is the pillar C, under which theV ends of the levers project and from which projects the connecting-rod D, having a swivel-joint E of any desired or Well-known form at some point in its length.

F is a shelf having the down wardly-extending supporting-arms G, Which at their meeting-point are provided With a collar H pivotally supported on a reduced portion at the top of the pillar C. I is a set-screw in the collar,`

by means of which the collar and the shelf may be secured at any desired position in relation to the platform-as, for instance, as shown in Figs. l and 2.' This shelf F is provided With depending side fianges, and on its under side is suspended the shelf-lever K, to which the connecting-rod D centrally connects. The opposite end of the lever is suspended on the lower end of the beam-rod L, which at its upper end connects to the rear end of the beam M. This beam M is the tarebeam of the scale, and is fulcrumed at a point substantially midway its center and end on a bearing in the end of the horizontal arm N, which extends out from the top of the standard O, supported on top of the shelf at one end and bifurcated to permit the beam to play between the bifurcations.

The beam M has the depending bars P at each end, and from the lower ends thereof are the inwardly-extending pins @,011 which is pivoted the frame of the computing-panelQ, v'vhich extends, as shown, on both sides of the fulcrum of the tare-beam, whereby a panel and computing-table of increased length may be used, the same being substantially or nearly double the length of the indicating portion of the tare-beam. This computingpanel comprises a rectangular frame a, having grooved bars, as shown in Fig. Lt, the bars of the frame being detachably secured together;

The computing-table is printed on sheets of paper b, Which are then coated With a layer of transparent celluloid c, and the computingtables are then mounted upon the opposite sides of a cardboard backing or panel d, the ends of the panel entering the grooves in the frame and the frame being then secured together, as show-n, and pivoted on the pins on the tare-beam. The outer pin extends through the arm P and the projecting end is covered with a rubber sleeve e, which Works in an eye formed in the upper end of the standard hon the shelf and forms the stop for the beam.

R is the poise on the panel, which has a lateral extension S, on which are the price-perpound computations giving the Value-of the counterpoise-weights, and the computingpanel at its end is provided with the extension T on which the poise runs, so as to bring its reading-edge to the last roW of figures on the panel carrying the figures.

U is the usual scoop-balance, and U the usual poise on the tare-beam.

The operation of the device is too weil known to require description.

The construction of panel described produces one Which is light, strong, and in which the igures are legible, can readily be cleaned, and can be produced at a comparatively small cost.

By pivoting the shelf carrying the beam to the pillar the beam may be turned at such an angle as to give a good light for the person using it, and this is desirable, as most stores are lighted only from the front, while the simple, and efficient'.

An important advantage in having the depending arms at the ends of the tare-beam and mounting the panel thereon is that the number of computations recorded or noted on the weighing-panel is very great, and it is therefore necessary to obtain as much space as possible to put them on, also to avoid crowding. This is accomplished and at the same time the indicating portion of the tare-beam is of ample length.

.Vhat I claim as my invention isl. In a computing,` scale, the combination with the platform and base, of a pillar on the base, the supporting` arms G, a sleeve conneeting the lower ends of thearms and loosely fitted on the pillar, means for securinpr the sleeve in position, the shelf F supported on the arms, the shelt` lever II, the rodD having,r a swivel section, and connected with the lever K and the platform, the tare beam M supported on the shelf, and the pivotally supported computing panel Q carried by the tare beam, substantially as described.

2. In a computing scale, the combination with the platform, of the supportingarm O at one end thereof havingI the forwardly extending arm N at a point substantially midway between the center and end, the tare beam pivotally supported on the arm Naud having depending projections at opposite ends, the computing panel pivotally secured at the ceuter of its ends to the projections on the beam, means for limiting the movement of the beam, and the poise R on the panel, substantially as described.

In a computing scale, the combination with the tare beam, of a computing panel, pivotal connections between the beam and panel comprising pins loosely engaging projections on the beam, and a fixed slotted standard th rough which one of the pins passes, substantially as described.

fl. rIlhe combination with a tare beam pivotally supported intermediate its ends and having vertical end extensions, and a computing panel extending on both sides of the pivot of the tare beam and pivoted in the extensions, substantially as described.

5. In a price scale, the Weighing panel oonsisting of an open frame pivoted centrally at the ends, and having` the weight indications on both sides of both edges, a panel having marked thereon computations on both sides, detachably secured in the frame, and a double poise sliding,r on the frame and having on both faces a progressive series of price per pound marks, substantially as described.

In testimony whereof I alIix my signature in presence of two Witnesses.

IVALTIJR F. S'FIMPSON.

Witnesses:

M. H. HACK, MELL Ranuras.

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