US345049A - Hugo iiaeetee - Google Patents

Description

(No Model.)

H; HAERTER.

SPRING BALANCE. No. 345,049. Patented July 6, 1886.

ATTORNEYS.

Lil

HUGO IIAERTER, OF NEXV YORK, N.

SPRiNG-BALANCE.

Application tiled Oct ber l2, IEFS.

To (all 711/1072 it lit/Ly concern:

Be it known that l, HUoo Hana/run, ot' the city, county, and State otNew York, have in vented a new and useful Improvement in Spring- Kalauces, of which the following is a full, clear, and exactdescription.

tet'erence is to be had to the accompanying drawings, forming apart of this specification, in which similar letters of rel'erence indicate corresponding parts in all the figures.

Figure l is a trout elevation ot'aspring-balance to which my improvement has been ap plied, parts being broken away. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional plan view of a part of the same taken through the broken line 0c at, Fig. 1. Fig. dis a sectional side elevation of a part of the same, taken through the broken line 9 1 Fig. 1.

The object oi this invention is to provide spring-balances constructed in such a manner that the pointer can be readily brought tothe zero-point should the scale-pan be removed or changed for a heavier or a lighter one, or should a plate or other vessel be placed on the pan to receive the substance to be weighed.

The invention consists in the combination ofthe adjusting mechanism with the parts of an ordinary springbalance, as will he hereinafter fully described, and then claimed.

A represents the case or box that incloses the mechanism, and to which is secured the dial 1;, and the frame 0, that carries the glass plate covering the said dial B. Upon the upper end of the case A is t'ormed a lug, to which is secured a ring, D, for convenience in holding or suspending the spring-balance while being used. At the lower end of the case A is a hook, E, from which is suspended the scalepau, or the article to be weighed,and which is secured to the lower end ota bar, F, passing through an aperture in the lower end of the said case A.

To the upper end of the bar F is hinged the lower end of the rack-bar G, the teeth of which engage with the teeth of the small pinionwheel H, journaled to the case A. To the forward journal of the piuion-wheel H is attached the pointer I. The rack-bar G is kept in gear with the pinion-wheel H by a guard, J, attached to or formed upon the case A.

AGATTQIG' forming part of Letters Patent No. 345,049, dated July 6, 1886.

Serial No. 179,653. (X0 model.)

To the upper end of the bar F is also hinged the center of the cross bar K, to the ends of which are attached the lower ends of the springs L.

The springs L are graduated, so that their length will increase regularly as the weight suspended from them is increased, and in the same ratio.

The upper ends of the graduated springs L are attached to eye screws M, which are screwed into the ends of a cross-bar, N; or the said springs can be attached directly to the said cross-bar. Upon the lower side of the crossbar N is formed, or to it is rigidly attached, a projection or block, 0, having an inclined lower side, which rests upon the inclined upper side ol' the block P. Thelowersideot' the inclined block P is horizontal, and rests and slides upon supports Q, rigidly secured to the case A.

In the end of the sliding block 1 is formed a screw-hole to receive the screw R, which passes through and is swiveled to the side of the case A, and has a button formed upon or attached to its outer end, so that it can be readily operated to give a horizontal movement to the inclined sliding block 1.

The block 0 and crossbar N are held from having a longitudinal movemeuhand are made to move up and down vertically by guide-rods S, attached to the top of the case A and to the supports Q, and which enter recesses in the side of the cross-bar N.

With this construction, when the scale-pan is removed or changed, or a vessel is placed upon the sealepau, thepointer can be brought to the zeropoint by operating the screw It, which moves the inclined block P horizon tally and the block 0 and cross-bar N vertically raising or lowering the springs L, cross bar K, and rack-bar G, and turning the pin ion H and pointer I until the said pointer is brought to the zero-point and the spring balance is ready to receive the substance to be weighed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a spring-balance, the combination, with the case A, the graduated springs L, the crossbar K, attached to the said springs, and carry- I wheel H, engaging with the saidrack-bar,and

ing the suspending-bar F, the rack-bar G, con- 1 S, for keeping the said inclined blocks in nected with the said cross -bar. the pinionplace, substantially as herein shown and de- [0 scribed, whereby the said pointer can be readily brought to the zero-mark, as set forth.

HUGO HAERTER.

the pointer I, of the Vertically-moving cross- 5 bar N, the inclined block 0, attached thereto,

the horizontally-moving inclined block I, the swiveled screw 1%, for adjusting the said inclined blocks, and the supports Q and guards Witnesses:

J AMES T. GRAHAM, .SEDGWICK.

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