A depth gauge wheel removably secureable to a coulter disc to control the cutting depth of the disc, the wheel formed of a high density plastic to which soil and other debris will not adhere.

A gripping device for nappy workpieces which is capable of handling both small and large pieces of textile materials. A gripping device is provided having a base part and a slidable part, between which is provided a substantially closed hollow to which pressurized gas is supplied through a series of slots. The slidable part is moved in such a manner that the slots are squeezed together and the gripping device grips the nap of the upper piece of textile material. Pressurized gas is led through th...

In a transducer, e.g. a pressure transducer, the sensing element comprises a torsional oscillator provided with magnetic means for feedback of signals to maintain oscillation. Typically the sensing element is formed by selective etching from a body of single crystal silicon.

A magazine for an air gun comprises an outer case, a circular pellet carrier rotatably mounted in the outer case, and a cover that is pivotally mounted on the outer case. A coil spring resiliently biases the pellet carrier towards an end position. To load the magazine, the cover is pivoted to cause the pellet carrier to rotate to another end position, and a soft lead airgun pellet is then dropped in through a hole in the outer cover into a pellet chamber in the pellet carrier. The outer cover is...

A manipulator for manipulating metal ingots comprises a wheeled carriage with a peel assembly supported on it so that the peel assembly can move relative to the carriage. The peel assembly is supported adjacent one end of the carriage by at least one piston-cylinder device and a plurality of elongate links are pivotally coupled to the peel assembly and to a rigid support means on the carriage away from the end.

An optical sensor uses a torsion-mounted thin silicon paddle (1) with magnetically soft material on its back. A light beam falls on the front face and part of the beam is reflected to a photo-diode (4) whose output drives a current in a magnetizing coil (5). The magnetic field thus produced rotates the paddle out of the beam, which cuts off the light to the photo-diode. Thus the paddle oscillates with an amplitude which depends on the strain due to the torsion mounting. This modulates the light ...

Apparatus for performing chemical analysis wherein a cuvette holds a sample under examination and a support carries a dispenser head carrying two one-shot dispensers each in the form of a pressurized container holding a liquid reagent, of which a metered does is delivered into the cuvette through a discharge tube fixed to the dispenser head when the body of the container is displaced relative to said discharge tube.

An easy open package adapted to be heat sealed closed and peelably reopened including a first package wall comprising an outer layer, an inner sealant layer and a tie layer disposed between and peelably bonded to either the inner layer or the outer layer and a second package wall joined about a portion of its perimeter to the first package wall and comprising at least one layer, that layer being a sealant layer having the same composition as the inner sealant layer of the first package wall and ...

A tensioning device is provided for selecting and imparting torsional bias to a shaft and simultaneously providing a shock absorbing mechanism, the device including a biasing disposed substantially within the shaft for imparting torsional bias to the shaft, a coupler rotationally fixing one end of the biasing strip to the shaft, and a hub member rotationally fixed to the other end of the biasing strip, the hub member being relatively rotatable with respect to the shaft and including a locking me...

A traffic monitoring device mounted in a moving monitoring vehicle comprises a radar device for measuring the relative speed of a vehicle to be detected with respect to the speed of the monitoring vehicle. A speedometer measures the speed of the monitoring vehicle. By means of a releasing mechanism automatically triggered at adjustable limit speeds, a camera is released and the vehicle to be detected is photographed. The relative speed of the vehicle to be detected and the speed of the monitorin...