US718059A - Weighing-scale. - Google Patents

Description

- PATENTED JAN. 6, 1903.

I G. W. TAYLOR.

WEIGHING SCALE APPLICATION FILED SEPT. 22, 1902.

10 MODEL.

UNITED STATES PATENT OFFICE GEORGE W. TAYLOR, OF KIRKWOOD, GEORGIA.

WEIGHING-SCALE.

SPECIFICATION forming part of Letters Patent No. 718,059, dated January 6, 1903.

Application filed September 221 1902. $erial No. 124,330. (No model.)

To whom it may concern:

Be it known that I, GEORGE W. TAYLOR, a citizen of the United States of America, and a resident of Kirkwood, in the county of Dekalb and State of Georgia, have made a certain new and useful Improvement in WVeighing-Scales; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to weighing-scales, having for its object the further improvement of such devices as register additively the successive drafts of merchandise, same being an improvement of the device shown and described in my former Letters Patent dated June 4, 1895, and numbered 540,467.

In the drawings, corresponding reference characters indicating corresponding parts in all the figures, the device is shown as follows: Figure 1 is a front elevation of the device, showing the parts in normal position. Fig. 2 is a detail of the device for pressing the registering-ribbon against the segment and for automatically releasing the ribbon when the segment returns to its normal position. Fig. '3 is a side view showing same. Fig. 4 is a view of the ribbon or tape, showing the graduations thereon. Fig. 5 is a fragmentary detail of the segment-hub and its mounting. Fig. 6 shows the means for connecting with the scale-beam. Figs. 7 and 7 are respectively fragmentary side and plan. views of the tripping-lever.

A and A are the columns, and B the platform, of a platform or floor scale, Ois the crossbar connecting the said columns at their tops, and D is the beam, all of which elements may be of any ordinary construction.

The numbered parts are substantially identical with those of my aforesaid former patent, and I will now describe same. A beam 1, to which this device is attached, is secured to one or both of the said columns, and a metal plate 4, provided with the downwardly-projecting flanges 4 at each end, is secured to the said beam 1 and is bifurcated to give passage to the cam 17 and the arms of the segment in its partial revolution. The pivot 6 of the segment is secured to this plate by means of the tapes 7 and 8, which are respectively secured to the flanges 4 of the plate 4 by means of suitable tension-adjusting devices, screws 9 being employed for that purpose in the construction shown and pass, respectively, to the side of the pivot opposite their point of connection to the flanges 4 and are fastened to the pivot, passing over the top side thereof and approximately over one-half the circumference thereof. The segment 10 is curved and set eccentrically of the pivot 6 on radii drawn as the center of said pivotrolls, so that on the quarter-revolution of the said segment the periphery thereof will swing equidistant from a given point in its plane of motion. An arm 11 is connected to the pivot 6 and to the lower end of the segment 10, and an arm 13 connects the pivot to near the upper end of the segment. A pointer 15 is fixed to the column A or other convenient place and serves to indicate the graduation referring to the number of pounds of the single draft being made at that time.

A curved arm 17 is adjustably secured to the upper side of the arm 11 and is curved eccentrically of the said pivot to a degree which will about produce the desired degree of progressive augmentation of the resistance to the movement of the segment and the weight 21, to be presently described. A movement of this segment 21 up or down will respectively decrease or increase the degree of progressive augmentation of the resistance to the movement of the segment 10. When the device is in normal position and properly balanced, the weight of said segment is all on one side of the center of gravity; but when the segment 10 moves forward by the draft this weight is gradually transferred to the other side of the center of gravity, thus gradually increasing the resistance of the upward movement of the segment 10 to the draft being weighed.

The periphery of segment 10 is covered with rubber or other friction-producing material. Above the periphery of said segment is mounted a reel 24, so as to rotate freely on its axis, and on this reel is wound a tape or ribbon 25, which is graduated with pounds, &c., from one to a sufficiently large number to register the aggregate weight of the greatest number of drafts desired in that particular scale, so as to indicate by the figures thereon opposite the pointer 15 or other suitable index how much, in pounds, has been unreeled, the weight of each draft being added successively to the weight of the previous draft or drafts by the further unreeling of the tape by contact with the periphery of the segment 10 as it descends to its normal position.

Thus far the device is, as I am at present advised, substantially identical with the subject-matter of my said Letters Patent with the exception that I have graduated the segment 10 and dispensed with the graduated scale 16 and the index-finger carried on said segment, said index 15 being now stationarily located as aforesaid, and have modified the means of securing the plate 4 to the scalecolumns.

The present improvements relate to means for engaging the tape 25 in an operative manner with the periphery of the segment 10 as the same is moved downwardly and of releasing said engagement so soon as the said segment shall have returned to its normal position. This I will now proceed to describe. Secured to a bracket upon or otherwise connected to the scale-frame just below the reel 24, whereon the tape is wound, is a framework E, substantially in the plane of the segment 10. In this frame are pendulously secured arms e, spring-pressed in the direction of the periphery of the segment 10 and carrying a roller 6 between their lower ends. e is a brake connected to the pend ulous arms and carrying its shoe 6 in operative relation to the reel 24. Pivotally secured to the frame on a pin f is a lever F, which has its endf projected into the path of the pin 39 on the segment. A cam f is carried between the arms of said lever F for a purpose hereinafter set forth. The back end of said lever is extended baokwardly from the pivot f and has a drop f for manual operation. A flat spring G bears its end upon the tape when depressed to stop same instantly, its upper end being so situated as to press when so doing against the pendulous arms e, and so cause them to spring away from the segment 10 at their lower ends, thus releasing the tape from its engagement with the segment simultaneously with said tape being braked by said spring G. It is upon this spring G which the cam f acts when the end f of the lever F is depressed by the contacting of the pin 39. A yoke H is pivotally secured to the end f of the arms F, being slidably mounted at its back end and spring-retracted, so that as soon as said lever F in its partial revolution (into the position shown in Fig. 2) passes the dead-center the power of said spring is applied through said yoke in sustaining said lever just at or above the dead-center and in the position to be easily tripped by the downward movement of the pin 39. The operation of this portion of the device is as follows: The loads are placed upon the scale-platform in succession as rapidly as may be, and as each load draws the movement of the beams is communicated to the segment, partially revolving it upwardly to a point of rest, or, in other words, to a point where the resistance equals the draft, as aforesaid, whereupon in each instance the lever F is elevated manually as to its end nearest the segment and having passed the plane of the yoke H is locked against autodisplacement. This setting brings the roller e into contact with the tape 25 and presses it into frictional engagement with the segment 10, which on the removal of the load partially revolves downwardly on that side to its normal position, moving as far peripherally as it was moved upwardly by the draft of the load, so that an equal length of tape is drawn oif of the reel 24. Now the tape having started with its zero at the pointer 15 it is obvious that the indication of one or all drafts will always appear at this point. So soon as the pin 39 shall contact with the contiguous end of the lever F same will be tripped, bringing the cam f into contact with the spring or finger G, which, bearing below the pivotal point of the pendulous arm 6, will swing same backwardly away from the segment and disrupt the frictional engagement of the tape therewith, at the same time clamping the tape between said spring G and the face of the arm 6 and applying the brake-shoe e to the reel. All is now ready for another draft and a repetition of this operation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a registering weighing-scale,a pivoted segment connected operatively with the platform, a tape graduated with weight indications, a lever pendulously mounted and carrying a roller in the plane of said segment, and spring-pressed to contact with the said segment through the medium of the intervening tape, a finger lying with its upper end in operative relation to said pendulous arm, a trip-lever carrying a cam in operative relation to said finger and projecting its end into operative relation with said segment and means for retaining said lever in its set position.

2. In a registering weighing-scale,a pivoted segment connected operatively with the plat form, a tape graduated with weight indications, alever pendulously mounted and carrying a roller in the plane of said segment, and spring-pressed to contact with the said segment through the medium of the intervening tape, a finger lying with its upper end in operative relation to said pendulous arm,a triplever carrying a cam in operative relation to In testimony whereof I hereunto aifix my said finger and projecting its end. into operasignature in presence of two witnesses. tive relation with said segment and means for retaining said lever in its set position com- 5 prising a yoke, springretracted and fnl- Witnesses:

crumed above the plane of the dead-center A. P. WOOD, of movement of said last-named lever. G. P. BAUGH.

GEORGE W. TAYLOR.

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