US679010A - Scale-beam with indicating-poise. - Google Patents

Description

No. 679,0l0. Patented July 23, l90l.

' D. M. WINANS.

SCALE BEAM WITH l NDIGATING POISE.

(Application filed Mar. 15, 1901.)

(No Model.)

UNITED STATES PATENT OFFICE.

DANIEL M. WINANs, or BINGHAMTON, NEW YORK, ASSIGNOR To, IIORATIO oseoon, OF sAME PLACE.

SCALE-BEAM WITH YINVDICATING-POISE.

SPECIFICATION forming part of Letters Patent No. 679,010, dated July 23, 1901.

Application filed March 15, 1901. Serial No. 51,294. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL M. WINANS, a citizen of the United States, residing at Binghamton, county of Broome, and State of New York, have invented certain new and useful Improvements in Scale-Beams with Indicating-Poises, fully described and represented in the following specification and the accompanying drawings,forminga part of the same.

This invention relates to that class of scalebeam constructions in which the movable poise carries a pointer and dial, one of which is rotated through gearing by the movement of the poise on the beam, and thus indicates r; the weight on the dial, the especial object of the invention being to provide a very simple, cheap, convenient, and durable construction, while at the same time securing the accuracy of weight indication required.

As a full understanding of the invention can best be given by a detailed description of a construction embodying the invention,such a description will now be given in connection with the accompanying drawings, forming a part of this application, and illustrating a construction of the preferred form embodying the invention, and the features forming the invention will then be specifically pointed out in the claims.

In the drawings, Figure l is a side elevation of the scale-beam and poise. Fig. 2 is a vertical crosssectiou of the same, taken centrally through the poise. Fig. 3 is a central vertical section longitudinally of the scalebeam, showing the beam and one of the halves of the poise in elevation. Fig. 4 is a cross-section on the line 4 of Fig. 2. Fig, 5

is a detail view of the pointer.

Referring to said drawings, A is the scalebeam, which is preferably of double-T form in cross-section, as shown, thus providing a recessed central portion for the figures indicating large weights, shown as hundreds in the present case, so that the figures do not 43 project beyond the face of the beam, while at the same time securing with a light beam the extended surfaces required on the top for supporting the poise and on the bottom for the rack a, which moves the poise-pointer. The poise B is cylindrical and is formed of two halves b I), each of which is grooved to provide one-half of the beam-slot 10, through which the beam passes, and with half of the screw-hole 11 for the locking-screw 0. These halves b b are secured together by the screws 12 or in any other suitable manner and are bored centrally for the pointer-shaft d, which passes through the poise and carries the central pinion e, which engages the rack a, and

at its opposite ends outside the poise carries the pointersf, which move over the dials g on opposite sides of the poise, these pointers f preferably being protected by the flanged rims 13, formedon the opposite sides of the poise. These dials are preferably of celluloid or similar material to avoid the use of glass covers for the dials, which are liable to break age, although this feature is not essential to the invention. The pointersfmust be rigidly secured and accurately positioned upon the ends of the shaft (1 in order to secure accuracy of weight indication on the dials and the desired rigidity of construction, which would be interfered with by any looseness of the pointers,and a rigid strong construction is important also in case it isdesired to move the poise by the pointer, for which my construction is adapted, knobs 14 being shown on the pointers for this purpose. Isecure the desired rigid and strong connection between the pointersf and the shaft din a simple manner, while permitting the pointers to be readily removed,

by providing the ends of the shaft on opposite sides with slots 1 and forming the pointers with slots 2, terminating in openings 3 of sufiicient size to permit the pointer to be passed over the end of the shaft 01, the slotted portion of the shaft fitting tightly in the slot 2, so that by passing the hole 3 over the end of the shaft and then moving the pointer so 0 that the walls of the pointer-slot 2 engage in the slots 1 on the end of the shaft and drawing the pointer up tight a firm rigid connec tion is secured, while the pointer may be readilydetached. Thelocking-screwcis preferably provided with a slightly-enlarged head 4: at its inner end, so that it cannot be withdrawn from the poise, which head may well be made by solder, this screw being inserted in one of the poise halves b or b in assembling the parts and then laying the other by laying it in the half of the screw-hole 11 I00 poise half over it. To avoid wear of the top of the scale-beam by the locking-screw c, a thin loose piece of metal 5 is preferably interposed between the set-screw and beam, and this aids also in avoiding the movement of the poise and pointer by the set-screw in looking. This loose piece of metal 5 is placed in a recess formed in the upper part of the halves b b above the groove 10, so that the shoulders formed at opposite ends of this recess secure the movement of the piece 5 with the poise as the latter moves along the beam A.

In the use of the scale-beam it will be understood that the hundreds are read off the scale-beam and the units and tens from the dials, the movement of the poise between two figures on the beam giving the poise-pointers a complete rotation. After the poise has been roughly positioned by the movement of the poise by hand it may be accurately adjusted by rotating one of the pointers by the knob 14, which moves the poise slowly on the scale beam. The scale beam illustrated weighs up to six hundred pounds, the indications on the poise-dials being to one hundred. In the case of scale-beams intended for larger weights, where it may be desired that the poise should indicate to thousands or where for any reason a greater travel of the pointer is desired, this may readily be provided for by using multiplying-gearing between the rack and pointer;

\VhileI have shown weight-figures on oppo' 1. The combination with a scale-beam and its rack, of a poiseniovable on said beam and carrying a shaft formed with slots 1 at the end, a pointerfprovided withahole3adapted to pass over the end of the shaft and a slot 2 adapted to receive the slotted portion of the shaft, and gearing connecting said shaft with the rack, substantially as described.

2. The combination with the beam A having rack Ct on its lower side, of the two-part indicating-poise B grooved to form the beamslot and having shaft cl carrying the rotating indicating member, gearing between said shaft and rack, and locking-screw c at the top of the poise in a hole formed partly in each part of the poise, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DANIEL M. \VINANS.

Witnesses:

THEO. R. TUTHILL, GEO. DANA Snssrons.

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