Apparatus for depositing and lifting off of a reference weight in an electronic scale
AssigneeMettler Instrumente AG
InventorPaul Luchinger
Life of this patent
Estimating the term…
Abstract
An apparatus for depositing of reference weights in an electronic scale consisting of two levers swivelable around vertical axes, one end of each lever is always in contact with a cam disc attached on a vertically disposed shaft and the other end of which is developed as a gliding shoe which may be pushed below the lifting tray. By rotating the cam shaft, the lifting trays cause the reference weights to be deposited by the cam discs at first each individually one after the other and then jointly onto the carriers.
Claims10
An apparatus for depositing and lifting a reference weight in a precision scale having a scale base, lateral walls and a weighing mechanism comprising:
- (a) at least one cam disc fixed on a rotatable, vertical cam shaft;
- and
- (b) at least one lever, having a free end and a cam following portion opposite the free end, rotatable about a vertical shaft and cooperating with the cam disc, said free end movable, in response to rotation of said cam disc, between a first position for holding said reference weight in a disengaged position and a second position for depositing said reference weight.
Dependencies are inferred from the claim text.