US1750516A - Grading machine - Google Patents

Grading machine Download PDF

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Publication number
US1750516A
US1750516A US182896A US18289627A US1750516A US 1750516 A US1750516 A US 1750516A US 182896 A US182896 A US 182896A US 18289627 A US18289627 A US 18289627A US 1750516 A US1750516 A US 1750516A
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US
United States
Prior art keywords
scale
scales
machine
articles
discharging
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Expired - Lifetime
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US182896A
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English (en)
Inventor
David E Gray
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Corning Glass Works
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Corning Glass Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Glass Works filed Critical Corning Glass Works
Priority to US182896A priority Critical patent/US1750516A/en
Application granted granted Critical
Publication of US1750516A publication Critical patent/US1750516A/en
Priority to BE369271D priority patent/BE369271A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/16—Sorting according to weight
    • B07C5/22—Sorting according to weight using a plurality of stationary weighing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/06—Sorting according to size measured mechanically

Definitions

  • Patented 11,1930 I UNITED STATES PATENT OFFICE DAVID E. GRAY, OI COBNING, NEW YORK,
  • assrenonro come ems: worms, or
  • Y My invention relates to automatic sorting or grading machines which sort or ade articles according to their respective welghts.
  • ig. 1 is a side elevation, partly in sectlon, of my improved machine
  • Fig. 2 is an enlarged sectional view of the upper part of my machine, taken along the line 2-2 of Fig 3 with the operating parts in a different positlon than in ,Fig. 1;
  • Fig. 3 is a front elevation, on a further en'- larged scale, of theiconstruction shown 'in Fig. 2, some of the structure being omitted;
  • Fig. 4 is a detail of a fulcrum shaft suprt Fi g. 5 is'a plan view of the maehinewith the parts in the. position shown in .Fig. 2, some of the structure being omitted Fig. 6 is a detail of one of the grading mechanisms, and v 1927. Serial I0) 182,896.,
  • Fig. 7 is a similar view of the same mechanism with the parts in a different position.
  • reference numerals 11 and I2 designate a pair of similarly constructed side standards aflixed in any suitable manner to'a base block 13.
  • the latter is preferably mounted upon rollers 14, and may be provided, at its corners, with vertically adjustable legs15, adapted to support a the machine in immovable position, independently of the rollers.
  • 'Mounted in suitable hearings in the standarils 11, 12, in vertically staggered relation to each other, as shown in Fig. 1, are horizontal mounting shafts 16, 17, 18, 19, 20, provided with identical interlocking gears 21, 22, 23, 24, 25, respectively, at one side of the machine, for simultaneous rotation of said shafts.
  • These gears are actuated by a sprocket wheel 26, keyed to the lowest shaft 20, and
  • F ixedly mounted in standards 11, 12 is a series of cross-beams, as indicated at 32, each of which is horizontally aligned with one of' the shafts 16, 17, 18, 19, 20,-as shown-in Fig. 1.
  • a downwardly inclined magazine 35 (Figs. 1 and 5), for holding the tubes to be fed into the machine,'is provided with similar side walls 36 that are secured to. the crossbeanlgfliin any well-known manner.
  • the bottom of themagazine consists of a pair of spaced flat plates 38 (Fig. 5) which are se cured to the cross-beam 29 by means of screws or bolts 39, which extend upwardly through the cross-beam and into the under sides of the plates.
  • the plates 38 terminate in ends 40 which are in proximity to the panarms of scales to be described hereinafter.
  • each of these compartments is formed by a pair of spaced flat plates 42, which are secured to-the cross-beams 34 by upwardly directed screws or bolts 43.
  • the inner ends of theseplates terminate ilrtapered edges 44, which normal; ly contact with the extremities of the adjoining scales in the machine proper, and the outer ends of these plates (not shown) are provided with any suitable detents for retaining the tubes in the grade-compartments
  • a series of similar guideways 45 are provided between the successive stages of the machine.
  • Each of these guideways 45 comprises a pair of spaced, correspondingly located, and downwardly curved bars 46 which are seupon which the tubes are supported during the weighing operation.
  • each fulcrum shaft 50 At spaced points along each fulcrum shaft 50, between the wedge-shaped sections 51, are mounted a air of similar beam scales 56 (Figs. 3 and 5; the direction of which pair of scales is alternately rever sed in each succeeding stage of the machine as shown in Fig. 1.
  • the weight setting of the scales may be accomplished by integral weight incorpo-' ration, the provision of a longitudinally adjustable collar "of determined wei ht, or any other well-known means, and int e particular embodiment herein described I have found it preferable to permanently incorporate the desired .weights in the-weight ends 58 of a number of scales,,relying on substitution of an entire beam to provide the weight setting desired.
  • each scale 56 slopes downwardly, and terminates in a notch 60 (Figs. 5 and 6) the side walls of which incline downwardly and outwardly from the center, to provide a thin blade-like edge ,62,
  • each discharger consists of a pair of duplicate blades 67., 68, a thin lug 65 being provided on each blade for cooperation with the scales as described hereinafter.
  • the dischargers are mounted in close proximity to the pan-ends 59 of the scales so that, when rotated, they will strike against the projectand eject it into either the grade-'compartment or the guideway.
  • a stabilizer 64 is keyed to shaft 16, and on the side of each discharger nearest the center of the machine.
  • the stabilizers 64 and the lugs 65 may bemade integral with the dischargers or may be attached thereto in any well-known manner in which event the stabllizers constitute a hub-like reinforcement for their respective dischargers.
  • Figs. 6'and 7 show a discharger 63 with one of its blades 68 in operating relationship with the scale 56."
  • a substantially triangular-sha'pedprojection 69 On the side of the pan-end 59 of the scale beam 56 whichad'joins the inner face of the discharger 63 there is provided a substantially triangular-sha'pedprojection 69 whose bottom face 7 O is slightly curved and forms a substantial continuation of the bottom of the pan-end 59.
  • the upper surface 71 of this projection' is a a suflicient extent to contact with the projection 69, but not sufliciently to touch the wall of the scale beam proper (Fig. 3).
  • stabilizer 64 holds the scale against depression until the tube has come to rest thereon.
  • the stabilizer 64 is positioned in radially spaced relation to the 'ciently thereafter to-assure the tubes having come to rest.
  • the relative lengths of these contacting surfaces will be such that there will be cOntinuous supporting contact during the maximum eriod of activity on the scales prior to the tu s coming to rest.
  • both of the e'ectors 63 in each stage as being pro-' vided wlth a pair of lugs .65, it will be apparent that these lugs may be omitted from one of such ejectors in each stage.
  • both scales are secured to a common fulcrum shaft 50, and both-dischargers are secured toa common shaft 16,-the action of one of the setsof discharger andscale mechanisms will be correspondingly reproduced in the other setin the same stage of the machine, and ac blocks 78.
  • the upp'er ends of these blocks are provided with threaded pins 79 which support adjustable collars 81 (Figs. 1 and 2), to 'limit downward movement of the escapement blocks bycontact with the crossbeam 76. .Mounted on the outer surface of the escapement blocks, and projecting therebelow, are stops 82 to limit the discharge of tubes from the magazine 35.
  • Mounting blocks 84 are secured to the points slightly beyond the ends of'the' plates 38 1 1 and 3).
  • Adjustable detents 85,- provid with elongated U-shape'd reces ses 86, are bolted on said mounting blocks 84 directly over the scale beams (Figs. 2 and 3).
  • Addltional adjustable de'tents 87 are mounted on each of the cross beams 32 over the other scale beams.
  • Each member 90 has a projection 91 which is linked to one of a pair of spaced bell-crank levers 92 which are fixedly secured to the rock shaft 31 for actuation by. a pair of cams v93 fixedly secured'on cam shaft 30 (Figs. 2 and. 5).
  • FIG. 1 shows the cam in the posiidler 97 on a stub shaft 98, which idler also meshes with gear 22 on shaft 17. Since the discharger 63 is double bladed, and is therefore adapted to discharge two tubes during each revolution, the cam 93 should make two revolutions for each revolution ofthe discharger in order to supply two tubes, and the gears are accordingly given a two to one ratio.
  • the stabilizer 64 will rotate clear of the scale, and weighing of the tube will take place prior to the advancement of the other discharger blade 68 into the operative position shown in Figs. 6 and 7.
  • lug 65 tapers to a fine edge, as does also the rear end ofprojction 69, and these features, as well as the particular fulcrum shaft support, provide a delicate selection that will result in extreme accuracy in grading to the extent that even the exceedingly slight depression of the scale initiated by a ve slightly overweight tubev will be translated into a depression of sufiicient magnitude to permit dischar e of the tube" onto the guideway 45, as in Fig. 7.
  • the rotary action throughout the machine also conserves space, is peculiarly advantageous in combination with the vertically staggered arrangement due to the horizontal and vertical action in the selective discharging o ration, and produces less jarring action t an discharging or conveyin mechanismshaving straight line motion.
  • the arrangement and structure-of the specificradihg mechanism provides an extremely deficate grading selection without sacrificing the ruggedness es sential for successful commercial operation.
  • I 6. In an assorting machine, the combinat1on of a plurality of scales arranged in vertical relat-ion and set for different weights, a guideway leading from each scale for receiving articles which over-balance said scale and dehvering them to a'lower part of the machine, a grade-compartment leading from each scale for receiving articles which do not overbalance sa1d scale,' and means operating in conjunction with said scales for directing said articles to said guideways or to said compartments.
  • I I I '.11 In an assortingmachine, the combmation of a scale, means .for stabilizing sa1d scale during the loadingof articles thereon,
  • a scale including a movable beam
  • means for stabilizing said scale beam during the loading of articles thereon means movable in a plane parallel with the plane of movement of the scale beamfor discharging the weighed articles therefrom, and means mounted on the discharging means and-coopcrating with said scale to maintain said scale during the discharging operation in the relative position initiated by theweight of an article thereon.
  • an assorting machine the combination with a scale, of means for loading articles thereon, and means for discharging 1 articles therefrom, said last named means preventing the loading of the scale during its discharging movement.
  • An assorting machine which includes a plurality of scales set for progressively increasing weights, guideways: between the scales to receive articles which tip v the scales, a grade compartment associated witheach scale, and means for deliverin each article which fails to tip a scale into t e oorresponding grade compartment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
US182896A 1927-04-11 1927-04-11 Grading machine Expired - Lifetime US1750516A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US182896A US1750516A (en) 1927-04-11 1927-04-11 Grading machine
BE369271D BE369271A (en(2012)) 1927-04-11 1930-04-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710690A (en) * 1952-06-24 1955-06-14 Owens Illinois Glass Co Automatic tube weighing and classifying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710690A (en) * 1952-06-24 1955-06-14 Owens Illinois Glass Co Automatic tube weighing and classifying machine

Also Published As

Publication number Publication date
BE369271A (en(2012)) 1930-05-31

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