ground joint

The dam comprises 61 independent blocks and ground joints.

Never exert force on stiff stopcocks, ground joints, or glass/tubing connections.

All laboratory glassware is fabricated locally, and can be supplied with European or American ground joints.

The Jansen linkage is of type (5, 2, 1, 0), because the upper triangular link supports four joints, two of which overlap at the ground joint, the lower triangular link and the input crank connect three joints and are ternary links.

During the company's early years through to 1950, it pioneered the development of various couplings and related products, including ground joint and air hammer couplings, malleable iron universal couplings with safety locking feature, steel combination nipples, steel hose menders, plated hose fittings, and dredge sleeve clamps.