GB703131A - Improvements in ring balances having flexible pressure transmitting conduits - Google Patents

Abstract

703,131. Pressure gauges. LANDIS & GYR AKT.-GES. Feb. 11, 1952 [Feb. 27, 1951], No. 3591/52. Class 106 (2) A ring balance has flexible pressure transmitting conduits connected to the ring and arranged so that in the rest position of the ring they are unstressed, intersect the axis of rotation of the ring, and are straight where they extend through such point of intersection. The body 2 of a ring gauge is supported on a bracket 4 of a housing 1 by means of a knife-edge 3 and is divided at the top by a wall into two chambers to each of which is connected a piece of tubing 5, 6 whose free ends are bent forwardly and down so as to lie in a plane containing the axis of the ring. Two tubes 7, 8 are secured to the lower part of the housing 1 and are bent forwardly and up to lie in the said plane with their ends respectively in straight lines with the ends of the tubes 5, 6. The ends of the tubes 5, 7 and 6, 8 are joined by flexible tubes 9, 10 of rubber or other suitable flexible material which may be artificial. The tubes 9, 10 may be connected together by bands 11 of rubber or other material or they may be formed as a double tube 12 with dividing wall 13 preferably thinner than the outer walls. The plane in which the connecting points lie is shown as vertical but it may be inclined. A desirable condition of bending stressing of the conduits is obtained if they are arranged so that the distance from the axis of the ring to the points of connection to the tubes 5, 6 is made 2.85 times its distance from the fixed points of connection to the tubes 7, 8.