US973669A - Scale. - Google Patents

Description

B. W. KING.

SCALE.

APPLICATION FILED JUNE-20,1910.

Patented Oct. 25, 1910.

,/ Wt 61 Mfiwm springs 11- is mounted in the upper end of of the frame.

' UNITED STA ES mam w. KING, or nnrnorr, MICHIGAN, AssIGnon T0 STANDARD COMPUTING SCALE COMPANY, LIMITED, 01 DETROIT, MICHIGAN, A LIMITED PARTNERSHIP OF MICHIGAN.

To all whom it may concern:

lie it known that "I, Bum XV. 'IKING, a citizen of the United $tates. and a resident of 1 Detroit. in the county of Wayne and State of Michigan, have invented a n ew and use adjusted.

In the accompanying drawing, Figure 1 is a vertical, longitudinal section of the indicating drum and upper portion of the pedestal of a spring-scale having thisfiinproved neutralizing device mounted below the drum. Fig. 2 is a plan of the neutralizing device. line 3-3 of Fig. 2. Fig. dis a plan of a slightly modifiedjorm of controlling device; Fig. 5 is a plan of one end of this, device on a larger scale. 1

Simila reference characters refer to like parts throughout the several views.

The used in connection with many types of sprlng scales having weight indicators movable in proportion to the weight on the platform, that shown in the drawings being generally similar to the scale shown in the patent to J aenic'hen, No. 923,530, dated June 1st, 1909. Thecylindrical shell 3 incloses a shaft 6, on which are mounted the drums- 5v and gear 7. A verticallymovable rod-19' connects with the lower end' of the springs 11 and has awe-1: Bat its upper end which engages the gear 7. A guide 9 holds the upper end of the rod in position. Thepedestal' 2 has its upper en formed T-shap'ed withside's12 and bottom 13; and theouter.

ends ofthe arms of the T join ,theheads of the shell 3f A support for the upper ends of the the pedestal. It" c0mprises an adjustable frame having a side 20 and ends 21. Per forate lugs 22 on one end are mounted on the pin'23 which extends through the sides 12 of the pedestal, while an adjusting screw 24 may engage the lug 25 at the other end SCALE.

Specification of Letters Patent.

Fig; 3 is a cross section on the device hereinafter described may be- As this frame .supports the Patented Oct.25. 1910.

Application filed-Tune 20, 1910. semi No. 567,768.

extension of the springs because of increase in temperature may be met by raising the frame thus bringing the upper end of the rod 19 and the drums 5 to normal initial position. Revolubly mounted in this frame is a. transverse spring26 having diameters of unequal length, and preferably rectangular in cross-section. The initial stiffness of this transverse spring depends upon the tension, and it is therefore mount-ed in a revoluble tensioning bar 27, having perforated ends 28.

Any desired connection between the spring and its tensioning bar may be em- That shown consists of blocks 29 ployed.

to the ends of the spring 26 by secured means of pins 30, and from these blocks the threaded studs 31 extend through the ends .28. See Fig, 5. Nuts 32 insure a proper tension on the spring 26, while pins 34. may be driven through small holes through the ends 28 and the studs 31 after the nuts have beenproperly tightened. These studshave conical depressions in their ends to receive 'the points of the screws 33 carried by the ends 21 of the frame. The spring 26 and the tensioning bar are therefore revol'ub'ly mounted in the upper end of the pedestal. and the position of the bar and spring will determine the flexure of the spring under predetermined loads.

The loads rings 11 connect to hooks 36 in any desire 1e manner and these hookseI-h.

gage in holes in. the transverse spr1ng26. ,As shown in Fig. 3, small springs engage the muses of the .tensioning-bar and tend to swing the same so that the spring 26 will lave a greater inclination from the vertical. Secured to a side of the pedestal is an adjusting member 38, of two metals having different coeflicients of ex-- pansion', preferably steel and aluminum brass, which f rmi hermostatq so-- structedi-tha't "th ree: end will swing. ward with increasingtemperatures. "This member, havin greater strength than the springs 39, W11 turn the tensioning-bar in j such a manner that the transverse s ring 26 will be more nearly vertical wit increased temperature.

..With-in reasonable limits, comprising an angle of'about fifteen degrees, a fiat spring 26 mounted as shown in the drawings, will upper ends of the springs 11, any initial 39 may fissu 1. In a scale, tliecombination of a having diameters of unequal length, auto- ;matic incense, to revolve said spring to directions, a to tension;

pivots for the 4,5:

. .with' ,each degree of 7 increase substantially regularly in stiffness I from the vertical.

"p loyedin connection with n springs l1.

, spring 26, I Man depiilntingifrom the sgirit lof my invention.

transverse spring revoluble therein transverse spring,

-increasing temperatures decrease of inclination I As the load springs 1].

with increasin tem- I and decrease in stiffness perature, a properly proportione I mountedtransverse-spring 26 may be em- I proper adjusting 'nechanism to neutralize'the changes in the I mechanism, any i Instead of automatic such as the ad manually operated device justing'screWAO, Fig. 4, may be employed to change the inclination of the transverse otherchanges in construction can be me e by those skilled in the art'without a ying now expl' it ed my construction what aim as my intention and desire to Letters Patent is frame, i atensioning barrevolubly mounted therein,

a transverse spring carried by said bar,

which s ring is unequally flexible in different irections load springs bring to the middle of thetransverse spring, and means to'revolve the transverse spring.

2. In a scale, the combination of a frame, and

having diameters of unequal length, load springs suspended from f'the middle of the and means to revolve the transve sprin g v '3. In a' z s'cale, the combination of a frail-1e, a transverse spring revoluble therein and cause the sante to; incr e in height with nd loaihsprings verse spring.

tion (it a transxib le in difl'ei'enl; the same, a frame, ar mounted in: vs the spring and ended from tl ci pr'ing'; I

suspended from said t1. 4.111 a scale, the col verse spring unequally f;

spring :I na -scale, the comb i'ation of a framc, i atens onmg bar revolubly mounted therein,

'a-transversespring carr d by said bar, load springs hung. to the middle of the trail supporting the same,

means for and automatic means to revolve the tensionnig bar and the transverses ring. (,3. In a scale, the combination of a trams, a transverse spring revoluble therein and 5- verse sprin having diameters of, unequal length-,1 load springs suspended from the middle of the transverse spring, and automatic means l.o revolve the transverse spring in proportion to the changes in temperature.

7, In a scale, the combination of a frame, a flat transverse spring,'-a bar revolubly mounted in said frame, means connected to the ends of the spring and mounted in the tensioning bar to tension said spring, auto- 5 matic means to revolve said spring and barto cause the same to increase in height with increasing temperatures, and load springs "suspended from said transverse spring.

8-.- In a scale, the combination of a pedcs- 70 tal, asubstantially horizontalframe adj ustablj mounted therein, a tcnsion-ing bar revolubly mounted on saidframe, a flat transversespring carried by said bar and tensioned thereby, load-springs suspended from 75 the transverse spring, and an adjusting device 'engaging the tens'ioning-bar and adapted to control" the revolution of the' same according to the ture. I

9. Ina scale,- the combination 'of .a pedestal,"of pendulous load-sustaining dEV16S,'fl substantiallyliorizontal, revoluble spring said spring being uncqually flexible in different directions and 85 revolving said spring to vary its flexibility. i

10. In a scale, the combination of aframc,

ckinges in temperay a, spring revoluble therein, and unequally flexible in different directions automatic '90 means for revolving said spring to vary its flexibility inversely with the temperature, and loa -snstaining devices engaging" saidspring.

1 In testimom whereof I have signed this 9? Specification in the presence of two sub scribing WltHBSSQ BERT WV. KING. \'l/'it-nesses Gnonin- E. RENLON,

IDA-1 1'. SnnLL'In's.

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