Digital electronic scale

Claim 1

A platform type weighing scale comprising: (a) a horizontally disposed base having a vertically movable weighing platform mounted thereon, said base having an extension beyond said weighing platform, (b) a vertically disposed column mounted on said extension of said base of (a), said column having a hollow base portion, (c) weighing mechanism mounted on said base operatively associated with said platform of (a), said weighing mechanism including a lever which moves in response to actuation of said weighing mechanism by a load placed on said platform of (a), said lever extending from said weighing mechanism to an area below said column, (d) a load beam mounted on said extension of said base of (a) in said hollow base portion of said column of (b), (e) connecting means connecting said lever of (c) with said load beam of (d) so as to transmit a load from said lever of (c) to said load beam of (d) to produce a movement of said load beam of a fraction of an inch, (f) one or more electrical strain gauges mounted on said load beam, (g) a digital voltmeter, (h) means connecting the electrical output from said strain gauge of (f) to said digital voltmeter of (g), and (i) a read-out meter operatively associated with said digital voltmeter of (g) to show measurements in units of weight(.), said connecting means of (e) extending upwardly through a hole in said load beam of (d), said hole having conical sides and said connecting means of (e) containing a semi-spherical member to seat in said conical sides of said hole and engaging the sides of said hole whereby said load beam of (d) is pulled downwardly when a load is applied to said platform of (a) causing downward movement of said lever of (c).