US956322A - Weighing-scale. - Google Patents

Description

A. W. BPRIGHT. WBIGHINC- SCALE.l APPLICATION 'FILED JUNE 12, 1909.

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Patented Apr. 26, 1910.

@wf/@M Les' A;noNzo W. EPRIGHT, cFnL'rooNA, PENNSYLVANIA.

'TQ all 'whom Yit concern." Beit known that I, ALONZO WJEPRIGHT, l afcitizen of theUnited States of America, residing in .Altqon a`,` in the county of Blair, State of Pennsylvania, have invented a certainY new and useful Improvement in lVeighingsScales, of which the following. is atrue and exact description,4 reference being had to p art thereof.

weighing Vscalesv and particularly to 'the Specification of Letters Patent. App1ic atio1i led .Tune`12, 1909.

The, present invention 'relates to platform means employed 'for oonneetingthe platform.

l "to-its prlmarysnpporting levers. 15 The object o f the. invention is the'pr'ovmentioned which are -simple and .eiective and Well adapted to withstand the severe operating Conditionsmet with vin the vuse of -20 railyvay'cales 4in which the invention is priy niarilydesignedfor use.- Ihe-v varions' features of novelty which characterize f my :invention are pointed'out with articulaiitjfn he claims' annexed t and orming a part-'of this 'speciic ation. 'For a better understandngof my:inven- 'tioni however; and the advantages possessed by iti reference's'hould loehadl to the 'accompanying drawings and' descriptive matter in 'which I have illust-rated and described one" form in whichthe inventionrnay be em'- 'b odied. j Y Q f'thedrawin s, Figurel is asecti'onal 'elevation ofp'a su cientprtion' of av railway Scale tog'llllstrate' the, manner 'in Which'the invention -.is'.`used. Fig. 2 is air-elevation '.taken" sinilarly-'-tc, but on a vla-rger scale than,

theman' if' plaltfcmisl Iectlysupporte'dfby a number of, laigrsgof. 'similar-transverse primary levers f"f' jD'," f-'.Wl 1 ieh, one pair isshown in Fig. l.- Each lever; D; is' rovidedwitha fulcrum knife edgefpivotwhich engages a suitable sion of connecting means for the purpose' '.thl'scale pit, B 'the'pla'tform as a Whole, C

onitudinal 4platform beams. The

ever' at the' upper parts, the ends ofthe legs of Which-are. con

' WEIGHING-SCALE.

Patented Apr. 2c, 19in. 'serial No. 501,755. i

I 'llo`transmit the-proper 'portion of the Weight of the platform B to each lever D, a. bracket H for each lever engages the beam `C abonethe lever. The beam C .may `be stlifened adjacent the bracket as by braces 6'0 O.. This bracket is provided with spaced apart alined ears or pivot projections I Winch engage the lower ends of the links T at opposite sides-of the'lever D. The upper ends of the links J pass over the ends of a saddlebracketK which extends acrossthe top-of the corresponding lever D and is formed with a cavity in its underside in4 which it receives a hardened steel pivetbearing' block L which engages the knife edge pivot G.

' In the preferred construction shown, each bracket H is vdivided intotwo U shaped nected together by bolts H for convenience in assenibling, adjusting and repairing thescale The ears l are formed on the vertical legs of the lowerfhalf of the bracket.: The

'upper half ofthe bracket is provid ed ;ivith 'flanges H .2 which, 'with the top ia ll I "+I 3 of thelbody of the upper half of thebracket,

forni achannel .to receiije 4the bea1n. As 1s clearly shown 11i-Fig. 3 the Wall H? -is inclined-to the under'su'rface'of thebeain C beam C. By adjusting-thisWedgelength` Wise the distance between the bealnfQand ears 1 maybe adjusted. This adjustment makes it easy to properly'ld' weight' of the platforniand l :various levers Holes Il formed inv the ange's I-I2 a f1 1;d,ved'k 'spectirely, diifere'nt ones of which reg Bolts M. passing `tlu-fouvl tion ofthe brackets Hin lic 100 bottom 'ila'nges of the beams Cl cess C' serve to lock the parts togetherrin an de-' sired ad'ustinent. To permit-the adyustii mentof lille wedges Hf-i-t \\'il l. -be un c l' stood 1 4thatihey arelongiti-ldinnlly' l re- .105 :ceive the bolts f l "The .links T and ears tactingsurfaces Jg --and ]Q soyeurfjedt links may have alpendulunf motion W1threspectto the earslina plane parallel .the llle- 85 tween the Wall H3 and the. corresponding adjustment or causingr apart projections, links connecting the ends of the block and length of the lever D, and also a plane transverse to that lever. The links J Vhave thelr portions J2 engaging the top of the saddle block in the form of straight bars` `With their under sides cylindrical. The link portionsJ2 engage shallow depressions K3 formed in the`-upper yside of the saddle block and extending transversely to its length. In consequence the links J may have a pendulum motion relative to the saddle block in a plane transverse to the length of the lever D but not in a plane parallel to the length of'the beam.

Each saddle block K and corresponding links J together are free, of course, to have a pendulum motion about the edge of pivot G. The bottom K2` of the cavity K and the engaging 'side of the block L are curved about an axis below the saddle'block and extending parallel to the length of the lever D and transversely to the length of the beams C. In consequence of this the block L may adjust itself in the saddle block K to thereby equalize the strain on the two links J and to insure a uniformity of pressure along the length of the knife edge pivot and this is an important feature' since the varying deflectionof the beam C With vary- With the plat orm scale support described 4the vibration of the platform both lateral and longitudinal incident to the movement of the load on and olf the platform can take place Without'throvving the bearings out of the knife edge pivots aces of their bearing blocks, and consequently Without liability of injuring the bearings. At the same time the connection employed is simple in construction, easy 'to assemble, adjust and re air, durable and elhcient, and Well calcuated to withstand the severe service conditions to which railway scales are sub jected. f

to move along the Having now described my invention, what.y

I claim as'neW, and desire to secure by Letters Patent, is:

l. A platform support for a Weighlng scale'comprlsing 1n combination a bracket provided with a pair of alined and spaced a saddle block, a pairof the projections, said 'block being formed Awith a cavity .in its face having its bottom I' curved about -an axis extending transversely to the length 0f the saddle, and a bea-ring block for a knife edge pivot loosely fitte `innrsaid ca'vity, and. having its back face loads on the platform is thereby pre curved to conform to the bottom of said cavity. 2. In a Wei hing scale theV combination With4 the lat orm and a supporting lever therefor, a'ving a transverse knifeedge pivot at its up er edge, of a bracket on which the -plat orm rests provided with pivot ears at opposite sides of, and projecting toward the lever, a saddle block extending parallel to said knife'edge pivot and provided with a bearing resting on the said pivot, and a pair of links one at each side of the lever, and each encircling the adjacent end of the saddle block and the corresponding bracket pivot ear. 3. In a Weighing scale the combination With the platform and a supporting lever therefor', having a transverse knife edge pivot at its upper edge, of a bracket on which the platform rests provided vvith pivots at opposite sides' of the lever, a saddle lock extending parallel to said knife edge pivot and provided With a bearin resting on the said. pivot, and a pair of lin rs' one at each side ofthe lever, and each encircling the adjacent end of the saddle block and the corresponding bracket pivot, said links, saddle block and bracket pivots having their engaging surfaces so `formed as to permit the links to have pendulum Vmovements relative to the saddle block in a direction transverse to the scale lever only and relative to the bracket pivots, both transversely and longitudinal of the lever. v

Il. A platform support for a Weighing scale, comprising ,a bracket having provisions -forits pivotal connection to a scale lever and being formed with a channel toreceive a platform beam with the bottom of said channel inclined in the directionv of its length to the bottom of said beam, a Wedge resting in the bottom of said channel and adjustable in the direction of the length of the channel, and means for securing the bracketv and Wedge together in difiPerent adjustments.

5. A p'latform ,support for a Weighing scale comprising a bracket having an opening through which a scale lever may Vpass and formedof a pair of U shaped members, th'legs of Which are secured together end to end-and one of which is provided with a platform beam supporting surfaces, and the' other of which is .provided with a 4pair `of alined ears on the inner sides of its flegs Wliereby Said bracket may be pivotally connected to a scale lever passing through it.A

ALONZO WL nrmerrr.v l

Witnesses:

ARNOLD Kurz,

D. STEWART.

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