Weighing machine

Abstract

Claims

April 15 1924. S. E. McQUEEN WEIGHING MACHINE Filed Aug. 7, 1922 'I I N VEN TOR. JMJ 5 f/sw@ 14 TTORNEYJ. Patented Apr. 15, 1924. UNITED STATES SAMUEL E. MCQUEEN, 0E MILWAUKEE, UHSCONSIN. WEIGHING MACHINE. Application led August 7, 1922. Serial No. 580,229. ' To @ZZ whom it may con-cern Be it known that I, .SAMUEL E. MGQUEEN, a citizen et the United States, and resident of hiilwaukee.y in the county oi Milwaukee and State oi? Wisconsin, have invented new and useful Improvements in Weighing Machines, of which the following is a descrip-l tion, referente being had to the 'accompanying drawings, which are a part of this specihcation. This inventionl relates to improvements in weighing machines, and more especially to weighing machines or .sc-ales particularly adapted for weighing paper. ln ascertaining the weight of paper per ream a piece of paper cut to a given size is weighed and the total weight of the ream, figured on the Vbasis oi 500 sheets to the ream, is then determined. That part of the paper industry which deals in fine paper usually handles the same in three standards: that is 25x38 for book papers, 24x36 for envelope manila, greaseproof, glassine, etc., and 22x34 for bond papers and writing paper. In determining the weight per ream of any of this paper a sample piece cut to a given size is weighed and then the weight of the ream computed therefrom. However, scales heretofore used have not taken account of the several standard sizes of the sheets, and hence computation of the weight per ream must necessarily include the area of the sheets forming the particular ream being weighed. It is therefore the primary object of this invention to provide a scale having three lines of graduations thereon, which will indicate at once the weight of a ream of paper of any of the three standard sizes. One line of graduations is computed with a sheet measuring 25 X38 as the basis, another line of graduations is computed with a sheet of 24x36 as the basis and the third line of graduations is computed with a sheet measuring 22 X 34 as the basis. Therefore, when a sample sheet of the given size is weighed, the weight per ream for of the three standard sizes of sheets may be immediately ascertained. The details of construction of this invention will be made more apparent as the de scription proceeds, especially when considered in connection with the accompanying drawings wherein one physical embodement of the invention is illustrated. Adevice constructeil in accordance with this invention y Fig. 2 is a fragmentary side elevation of 80 the structure illustrated in F ig. 1; and, Fig. 3 is the `Form used in obtaining the sample sheet to be weighed. Referring now more particularly to the drawings wherein like reference characters indicate like parts throughout, it will be noted that there is illustrated a standard 10 which projects upwardly from a base 11, the weighing parts proper being suspended from an angular piece 12 projecting from the 70 standard 10. r An arc-shaped member 13, having secured thereto a pair oi angular supporting members 14, is suspended by means oi' a link 15, from the supporting arm 12. A scale beam 16 is pivotally mounted on a pivot rod 17 which extends between an arm 18 and one of the supporting arms 14 of the sector. One end of the scale beam is weighted as at 19 and the other end there- 80 of is provided with a hook 20, on which the sample sheet of paper to be weighed is hung. The sheet of paper which is weighed, is torn from a larger sheet by placing thereon a forming plate 21, the paper of the sheet being torn away around the edges of the forming plate 21 with the result that a sheet of paper of a size equal to that of the forming plate 21 is obtained. As mentioned hereinbefore, this sheet is caused to engage the hook 20 of the scale beam, the wei ht of a ream oi 500 sheets being ascertaina le from the weight of the sample sheet. Co-o y erating with the scale beam 16 and projecting therefrom, is an indicating hand or pointer 22, this indicating hand playing over three lines of graduations or scales 23, 24, and 25, arranged on the arcshaped member 13. As shown in Fig. 1, these three lines of graduations are computed in accordance with the areas of the three standard sizes of sheets used. Therefore, should a sample sheet, torn from a sheet measuring 25 X 38, be caused to engage the hook, the resulting amount indicated on the scale 23 will be the 105 weight of a ream of 500 sheets measuring 25 X 38. In a like manner, the weight of reams of paper, the sheets of which measure either of the other two sizes, may be also immediately determined. y Obviously, the basis upon which the lines of graduations are computed, as Well as the number of lines of graduations, may be varied so as to adapt this scale for use whe-re paper in other sizes is handled. `While the construction of the parts of the Weighing machine is simple and eiicient, it is not intended that the invention be unnecessarily limited in this respect, but reservation is made to malre such changes as may come Within the purview of the accompanying claims. Having thus described the invention, What is claimed is: l. In a Weighing device of the class described, a supporting standard, an arcshaped member suspended thereform, a Weighted scale beam pivoted to said arcshaped member suspended therefrom, a by said scale beam, said arc-shaped member having delineated thereon three lines of graduations computed in accordance with standard sizes of paper sheets to indicate the Weight in pounds `from small samples. 2. In a Weighing machine for paper and the like, a standard, an arc-shaped member suspended from said standard, a Weighted scale beam pivoted to said arc-shaped member, an indicating hand connected to said scale beam, said arc-shaped member having delineated thereon three lines of raduations, computed in accordance witg three different sizes of aper sheets and a hook carried by one end) of said scale beam and adapted to engage .a sample sheet of paper to be weighed. 3. In a paper scale of the class described, a supporting standard, an arc-shaped member, a pair of supporting arms for said arcshaped member, means pivotally suspendin said arc-shaped member `from said standar a Weighted scale beam pivotally suspended from one of the supporting arms of said arcshaped member, a hook secured to one end of said scale beam and adapted to be engaged by a sample sheet of paper of a given size to be weighed, an indlcating hand secured to said scale beam, said arc-shaped member having delineated thereon three lines of graduations, computed in accordance with three standard sizes of paper sheets on the basis of live hundred sheets to the ream, said indicating hand co-operating therewith to indicate the weight per ream of sheets of a given area. In testimony whereof, I affix my signature. SAMUEL E. McQUEEN. Certificate of Correction. It is hereby certified that in Letters Patent No. 1,490,672, granted April l5, 1924, upon the application of Samuel E. McQueen, of Milwaukee, Wisconsin, for an improvement in Weighing lWachines,77 an error appears in the printed specifica` tion requiring correction as follows: Page 2, line 19, claim l, strike out the Words suspended therefrom, a and insert instead the comma and words cm indicating 'zland actuated; and that the said Letters Patent should he read with this correction therein that the same may conform to the record of the case in the Patent Hice. Signed and sealed this 10th day of J une, A. D. 1924:. [SEAL] KARL FENNING, Act/ng Uovnmz'ssz'oner of Patents. Certicate of Correction. It is hereby eertied that in Letters Patent No. 1,490,672, granted April 15, 1924, upon the application of Samuel E. McQueen, of Milwaukee, Visoonsin, for an improvement in Weighing Maohinesf7 an error appears in the printed speoication requiring correction as follows: Page 2, line 19, claim 1, strike out the Words suspended therefrom, a and insert instead the comma and Words an ndz'cazfz'ng 'Hemd actuated; and that the said Letters Patent should be read With this Correction therein that the same may conform to the record of the case in the Patent Oflice. Signed and sealed this 10th day of June, A. D. 1924. [SEAL] KARL FENNIN G, Acting @ammissioner of Patents.

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    Publication numberPublication dateAssigneeTitle
    US-3515231-AJune 02, 1970Bizerba Werke Kraut Kg WilhPrice-indicating weighing scale