A tractor transmission wherein an engine output is transmitted through a clutch mechanism to a primary change speed mechanism, and a clutch housing and a first transmission case are removably connected to each other. The first transmission case includes a space in a forward portion thereof to accommodate a high speed and low speed switching mechanism and a forward and backward switching mechanism,...

A method of making a recombinant lead acid electric storage battery comprises enclosing the cell groups which utilize a compressible highly absorbent separator in cell containers, evacuating the cells, introducing sulphuric acid electrolyte in an amount such that the cells are not flooded and within less than 6 hours but after the cells have cooled to not in excess of 40 DEG C commencing electroly...

Apparatus for dispensing a volatile material comprises a core 13 containing the volatile material in liquid or solid form, an envelope 14 having apertures 15 containing said core and tear-away panel 16 covering the apertures in said envelope, the arrangement being such that removal of panel 16 enables the volatile material to be released into the atmosphere. The volatile material may comprise a pe...

1. Remote measuring spectrophotometric device comprissing a light source, a monochromator, a sensor (21), an optical means defining a measurement light beam and a reference light beam, and a compartment (4) located between the source and the sensor, the light beams entering and leaving said compartment, the device being characterized in that it additionally comprises : - a least one measurement ce...

An umbrella comprises a resilient one piece ring 13 attached to a cover 14 of flexible material with a handle 15 connected at its respective ends to both the ring 13 and the cover 14 so as to support the flexible cover 14 in its erect position when the umbrella is in use. The ring is preferably sufficiently resilient to allow it to be twisted into at least two, preferably three loops for storage. ...

Adjustable guide roller assemblies (38, 40) for an industrial vehicle such as a narrow-aisle lift truck have guide rollers (60) engageable with guide rails to minimize the necessity for steering by an operator during minimal aisle clearance conditions. Guide roller assemblies (38, 40) are preferably mounted on both sides of the industrial vehicle. The body (12) of the industrial vehicle is provide...

A surgical knife includes a handle supporting a diamond blade. An Nd/YAG laser is optically coupled by a bundle of optical fibres to the blade. The arrangement enables the blade to cauterize tissue being incised by the knife. The selection of the material of the blade and the laser provides a laser knife of extended useful life. The heating of the diamond blade by the laser provides the blade with...

A data processing system consists of a number of modules such as integrated circuit chips, each of which receives a clock signal. Each module contains a checking circuit 22 producing a failure signal which indicates whether or not the module is operating correctly. The clock signal is used to invert the sense of this failure signal in successive clock periods. Thus, the failure signal normally alt...

Unsaturated polyester foams having fine and uniform cells are prepared at an atmospheric temperature from an admixture which comprises in combination a liquid unsaturated polyester resin, a hydrazide compound, a cobalt compound and a powdered inorganic compound selected from the group consisting of percarbonates, perborates and perphosphates.

The present invention is directed to a process for producing foamable polyolefin particles comprising adding a mixture of 3 to 15 parts by weight of a blowing agent and 0.5 to 5 parts by weight of a blowing aid to 100 parts by weight of polyolefin particles maintained in a fluid state. The addition of the mixture of blowing agent and blowing aid is conducted under substantially anhydrous condition...

A wheeled vehicle has an internal combustion engine provided with an air intake having a throttle valve. A change speed transmission drives certain of the wheels and receives power from a fluid torque converter having an impeller driven by the engine and a turbine connected to drive the change speed transmission. A clutch establishes a direct drive between the impeller and the turbine under certai...

A method for recovering data from a data signal originating from a downhole apparatus and transmitted to the earth's surface through drilling mud comprises measuring pressure pulsations in a mud flow line at the earth's surface in two spaced apart locations (30, 32). One of the measured pressure pulsation signals is time shifted an amount equal to the travel time of the group propagation acoustic ...

A sealing ring firmly grips a movable piston, performs the normal sealing function, and when pressure is released on the piston the sealing ring pulls back on the piston so as to retract the piston. The sealing ring is designed so as to fit in a conventional seal or "O" ring groove without any modification of the groove.

A microprocessor-based apparatus for reconciling cash and stock in retail trade calculates and displays sales values from key entered sales information and stored unit prices. The apparatus is also loaded with opening stock levels, and stock is counted down from the sales entries to give instantaneous stock levels.

The present invention relates to a support and clamping ring comprising two trapezium section half rings 2 and 3 which are connected together by two screws 4,5 which engage in holes provided in ears at the ends of each half ring. The dual support and clamping action is provided by the sliding action of the inclined inner face 8 of the ring on a correspondingly inclined surface 9 of a groove 7 prov...

In previously known jolt control equipment, it was necessary to know the speed of the turbine of a fluid coupling or hydraulic torque converter driving the automatic transmission. According to the present invention, the turbine speed is assumed to be the same as the impeller or motor speed after the torque transmission through the automatic transmission has been interrupted. Under these conditions...

An industrial emergency brake is disclosed in which the braking members are disengaged gradually from the brake disc or the like after detonation of an explosive component or electromagnetic de-energization by a stud in threaded engagement with the braking member, a thermally expandable wedging member interposed between a fixed support for the brake and an abutment such as a nut on the stud. An el...

Mercury is removed from an industrial effluent by treating the effluent with a sulphide or hydrosulphite of an alkali metal in the presence of a flocculant at a pH of from 7 to 12 so as to precipitate an alkaline sludge containing precipitated mercuric sulphide and flocculated material, treating the alkaline sludge with effluent to redissolve the flocculated material but not the mercuric sulphide,...