US1185707A - Weighing-scale. - Google Patents

Description

E. J; OHNELL.

WEIGHING SCALE.

I APPLICATION FILED SEPT-1711913. 1,185,707. Patented June 6,4916.

2 SHEETSSHEET 1.

a vwe ntoz 3 t Ernst .fO/zzaell 85 i WW1,

E. J. OHNELLL WEIGHING SCALE. 7

APPLICATlON FILED SEPTJT, I913.

Patented June 6, 1916.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ERNST J". OHNELL, OF NEW YORK, N. Y.

WEIGHING-SCALE.

To all whom it may concern;

Be it known that I, ERNST J. OHNELL, a

- citizen of the United States, and resident of New York city, borough'of Brooklyn, in the county of Kings and State of New York, have invented certain new and usefullmprovemen'ts in Weighing-Scales, of which the following is a specification.

' My invention relates to improvements in weighing-scales of the class having fulcrum blocks and arms, supported from the fulcrum block by means of flexible strips, together with flexible strips connecting such arms with the scale platform or the like.

- Such strips must be accurately and properly connected with the arms and with the fulimprovement and combinations of parts that will be more fully hereinafter set forth and thenpointed out in the claims.

Reference is to be had to the accompany ing drawings forming part hereof, wherein, Figurel is a partly sectional view of a scale mechanism illustrating my improvements; Fig. 2 is a face view illustrating my improved construction of flexible strips for supporting the weights from the fulcrum blocks; Fig. 3 is a section on the line 3, 3, in Fig. 2; Fig. 4 is'a partly broken side view of a portion of the weighing scale illustrated in Fig. 1; Fig. 5 is a perspective view of a pair of the arm-pulling flexible strips embodying my invention; Fig. 6 is a similar view taken from the opposite side of Fig. 5; Fig. 7 is a detail sectional view of Fig. 5.

and Fig; 8 is a section on the line .8, 8, in-

Fig. 6. J

Similar numerals of reference indicate corresponding parts in .the several views.

The numeral 1 indicates a standard or up right of a frame of a suitable we ghing scale mechanism supporting the fulcrum Specification of Letters latent.

Patented June 6, 1916.

Application filed September 17, 1913. Serial No. 790,156.

blocks 2 in any suitable or well known manner. The weighted arms 3 are hung from or supported by the fulcrum blocks 2 by means of flexible strips 4. The strips 4 are shown arranged in pairs and secured at their opposite ends to bars 5, 6. The bars 5 are shown set in recesses 2 on the tops of the fulcrum .blocks 2 and secured in position thereon by screws 7. The bars 6 are shown set in recesses 3 in the under surfaces of the arms 3 and held secured in position by screws 8, whereby the strips bear uponthe curved upper surfaces of the fulcrum blocks. The strips 4 are all cut to the proper length and the bars 5, 6, are cast securely upon the ends of said strips, whereby said bars are permanently secured to said strips in parallel relation at right angles to said strips and at definitely spaced distances apart, so that said pairs of bars, cast upon the strips as described, will always be accurate and uniform, and when said bars are placed in the respective recesses 2 and 3 in the fulcrum blocks and arms, and secured thereto, said arms will be hung or suspended accurately and firmly from said fulcrum blocks. The strips 4 are preferably. provided with stops shown in the form of recesses 4 near their ends, the metal of the bars bearing against said stops, the metal of the bars being shown entering said recesses, to increase the union ofsaid parts.

At 9, 10 are pairs of flexible strips respectively connected with the arms 3, and depending therefrom. Said strips are shown arranged in parallel pairs, the ends of the strips 9 being secured to bar 11 and the ends of strips 10 secured to bar 12, while the op- I posite ends of said strips 9 and 10 are all secured to bar 13. Thestrips 9, 10 are made of similar length and bar 11 is castupon adjacent ends of strips 9 while bar 12is cast upon adjacent ends of strips 10, and upon the opposite ends of strips 9 and 10 the bar 13 is cast. By this means adjacent ends of the strips 9, 10 are secured uniformly and firmly together in bar 13 while the opposite portions of strips 9 with thelr bar 11 are free from strips 10 with their bars 12. The strips 9 and 10 may have-recesses"a near their ends into which the metal of the bars '11, 12 and 13 is cast to increase the union of said parts. To bar 13 is secured a pulling loop 14, shown adapted for connection with for connection with the platform or other weighing device of the scale mechanism. The loop 14 is shown provided with lugs 14 overlying bar 13, said loop being shown secured to said bar by bolts 16, whereby said loop may be readily removed from bar 13 and replaced upon another such bar. The bars 11, 12 are set in recesses 3 in arms 3, and secured in position by screws 17. The recesses 3 are formed in corresponding positions in the arms 3, and since the distance from bar 13 to the bars 11, 12 is made always the same by casting said bars upon the strips 9, 10, a very accurate pulling arrangement is aiforded, since it is only necessary to secure the bars 11, 12 in their respective recesses 3 of arms 3 and allow the strips 9, 10 to pass along the upper curved surface 3 of arms 3 and depend with loop 1 1 below said arms.

At 18 is a shaft suitably mounted upon upright 1 and carrying a pinion 19 and pointer 20, said pinion meshing with a rack 21 pivotally supported at 22 upon the upright or frame, and shown having an arm 23 operatively connected with cam 2 1 carried by arm 8 for operating the pointer as the arms 3 are moved by the weight upon the platform or the like.

My improvement provides means for reducing the cost of construction and assembling of parts in the class of weighing scales set forth, since the flexible strips and their bars may always be made with such accuracy as to enable them readily to be placed in position for original assemblage of the scale mechanism, as well as for re placement of such strips, thereby enabling unskilled persons to remove and replace the flexible strips, when required, without having to resort to the necessity of making laborious adjustment of parts and replacement of the strips. The arrangement also is such that the strips with their attached bars may be furnished at reduced cost of manufacture.

While I have shown the supporting device as having two spaced strips 4 it is evident that one or more such strips may be connected with a pair of bars 5, 6, as described, and, also, that instead of using two pairs of strips 9, 10, in a pulling device one or more such pairs of strips may be used connected with the bars 11, 12 and 13 as described.

Having now described my invention what I claim is 1. A weighing mechanism comprising a fulcrum block, an arm, a flexible strip having stops adjacent its ends, and bars .cast upon said ends and engaging said stops, and means for securing said bars respectively, to said fulcrum block and to said 'arm.

2. A weighing mechanism comprising a fulcrum block, an arm, a pair of flexible strips spaced apart, said strips having stops adjacent their ends, bars cast upon said ends of said strips and engaging said stops, said bars spaced apart at corresponding distances along said strips, and means for securing said bars to said fulcrum block and arm respectively.

3. A weighing mechanism comprising a fulcrum block, an arm, a flexible strip having recesses adjacent its ends, bars cast upon the ends of said strip and entering said recesses, and means for securing said bars to said fulcrum block and arm respectively.

1. A weighing mechanism comprising a fulcrum block having a recess, an arm having a recess, a flexible strip, bars secured at the ends of said strip and entering said recesses, and means for securing said bars in said recesses.

A weighing mechanism comprising a pair of arms, means to movably support said arms, a pair of flexible strips, a bar secured upon adjacent ends of said strips leaving their opposite ends free, a bar secured upon the opposite end of each strip, said bars being separate from each other, means to secure the last named bars to said arms respectively, and means to secure the first named bar to a pulling device.

(3. A weighing mechanism comprising a pair of arms, means to movably support said arms, a pair of flexible strips, a bar secured upon adjacent ends of said strips leaving their opposite ends free, a bar secured upon the opposite end of each strip, said bars being separated from each other, means to secure the last named bars to said arms respectively, and a pulling loop secured to said first named bar.

7. A weighing mechanism comprising a pair of arms, means to movably support said arms, pairs of flexible strips, said pairs of strips being spaced apart, a barcast upon the adjacent ends of all of said strips, a bar cast upon the opposite end of a strip of each pair of said strips, means to secure the last named bars to said arms respectively, and means to connect the first named bar with a pulling device.

8. A weighing mechanism comprising a pair of arms, means to movably-support said arms, pairs of flexible strips, said pairs of strips being spaced apart, a bar cast upon the adjacent ends of all of said strips leaving their opposite ends free, a bar cast upon the said free end of a strip of each pair of said strips, means to secure the last named bars to said arms respectively, and a ulling loop connected with the first named liar.

9. A supporting device for a weighing mechanism comprising, a pair of spaced flexible strips, and bars cast upon corresponding ends of said strips, said bars being spaced apart.

10. A supporting device for a weighing mechanism comprising a flexible strip, and

bars cast upon corresponding ends of said strip, said strip having recesses receiving the metal of said bars.

11. A pulling device for a Weighing mechanism comprising a pair of flexible strips, a bar cast upon adjacent ends of said strips, and a bar cast upon the opposite end of each of said strips, said strips having recesses at their ends receiving the metal of said bars.

12. A pulling device for a Weighing mechanism comprising pairs of spaced flexible strips, a bar cast upon adjacent ends of all of said strips, and a bar cast upon the opposite end of a strip of each pair of said strips.

13. A pulling device for a Weighing mechanism comprising pairs of spaced flexible strips, a bar cast upon adjacent ends of all of said strips, and a bar cast upon the opposite end of a strip of each pair of said strips, said strips having recesses receiving the metal of said bars.

14. A device of the class described comprising a pair of flexible strips having stops adjacent their ends, a bar cast upon adjacent ends of said strips and engaging said stops securing said ends together and leaving the opposite ends of said strips free, and a separate bar cast upon the free end of each strip and engaging its stop.

15. A device of the class described comprising a pair of flexible strips placed face to face, a bar secured to adjacent ends of said strips fastening them together and leaving their opposite ends free, a separate bar secured to the free end of each strip, and a loop secured to the first named bar and having a lug overlying said bar.

Signed at New York city, in the county of New York, and State of New York, this th day of September, A. D. 1913.

ERNST J. OHNELL.

Witnesses:

T. F. BOURNE, MARIE F. WAINWRIGHT.

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