| Patent Number |
Title Of Patent |
Date Issued |
| 4504337 |
Tire building machinery |
March 12, 1985 |
| Method and apparatus for building annular tire components such as steel cord tread reinforcements, in which a measuring drum is employed to receive strip material and simultaneously to feed it to a component building former. The strip material laps a portion only of the measuring dru |
| 4496331 |
Flexible couplings |
January 29, 1985 |
| A flexible coupling for connecting two rotatable components, for example driving and driven shafts, to transmit torque from one of the components to the other and also to accommodate relative axial movement between the components comprises at least one torque transmitting element having |
| 4488613 |
Fluid suspensions |
December 18, 1984 |
| The invention relates primarily to fluid suspension systems for truck cabs which are required to tilt on the chassis in order to gain access to the engine. In order to provide cab tilt pivots the displacer units comprise pins which engage in recesses when the units are retracted and tilt |
| 4475774 |
Vehicle braking systems |
October 9, 1984 |
| A vehicle anti-skid braking system, particularly for motor cycles, which employs a pilot brake for the purpose of generating operating power for the anti-skid system. The pilot brake is mounted for limited movement so that torque reaction moves it to actuate, for example, a fluid pressur |
| 4472225 |
Inflatable tube |
September 18, 1984 |
| The invention relates to inflatable tubes such as buoyancy tubes for inflatable liferafts and is aimed to provide tubes with bends in them that can be formed with a considerable reduction in the number of cutting and joining operations conventionally required and with a corresponding |
| 4470477 |
Hydropneumatic suspensions |
September 11, 1984 |
| The invention provides a hydropneumatic suspension system which is particularly suitable for lorry cabs of the kind which require to be tilted about a horizontal axis for access to the engine. Such a system normally has the disadvantage that a hydropneumatic unit, incorporating a dia |
| 4465105 |
Flexible hose |
August 14, 1984 |
| A flexible hose comprising a main fluid retaining carcass and a secondary fluid retaining carcass enclosing at least part of said main carcass, said hose including means to collect and detect fluid leaking from said main carcass. Said means comprises a circumferential opening formed in a |
| 4458789 |
Brake assembly for a multi-disc brake including a force multiplying device |
July 10, 1984 |
| For the pneumatic actuation of a multi-disc brake, plungers which are distributed circumferentially around the thrust ring (not shown) of the disc pack are paired and each pair is driven in the brake-application direction by a common pneumatic actuator. Thrust is transmitted from each |
| 4457736 |
Flexible couplings |
July 3, 1984 |
| A flexible coupling for connecting drive and driven shafts comprising four radially extending bushes uniformly spaced in a circumferential direction with respect to the axis of rotation of the coupling. Opposed pairs of bushes are connected to a respective one of the shafts and alternate |
| 4451313 |
Pneumatic tires |
May 29, 1984 |
| A pneumatic tire which comprises:a tread portion; a breaker structure to brace the tread portion; two sidewalls each having an associated bead containing a bead core, and each sidewall containing a reinforcing ply of cords anchored around the bead core of the respective one of said assoc |
| 4440392 |
One piece molded games racket |
April 3, 1984 |
| The invention relates to games racket frames which are made from reinforced plastics material and have a hollow construction. The particular construction and method of the invention enable a satisfactory hollow product to be made by an injection moulding technique instead of the more |
| 4439472 |
Upholstery components |
March 27, 1984 |
| A flame-retardant upholstery component consists of a core of a polyurethane foam, which foam collapses on application of a flame thereto, said core being covered with a layer of a foam material which has been impregnated with a flame-retardant substance. |
| 4436774 |
Rubber/polymeric material composites |
March 13, 1984 |
| A method of making a composite, e.g. a hose comprises (i) applying a treatment agent to the surface of a vulcanizable rubber composition, then (ii) vulcanizing the rubber composition and then (iii) solidifying a polymeric material e.g. a vinyl chloride polymer in contact with the vul |
| 4423869 |
Games racket frame |
January 3, 1984 |
| A frame for a games racket comprises a hollow plastics moulding which is at least partially reinforced by means of a rigid member integrally moulded therewith. The rigid member can consist of a metal plate having perforations which, when the plate and the plastics material are moulded |
| 4423760 |
Tire tread with zig-zag grooves having groove sidewalls of varying degrees of support |
January 3, 1984 |
| A tire tread for a truck tire, especially of radial ply construction and designed for use on well-made roads, comprising a small number of zig-zag grooves. The sidewalls of each groove are each provided with a supporting buttress of varying height or width such that the maximum support i |
| 4416316 |
Tire treads and tires |
November 22, 1983 |
| A vehicle's spare tire can be made lighter and cheaper for economy, but this entails limited performance and shorter safe life. The invention provides a temporary spare tire with a tread which emits a distinctive two-tone or three-tone warning sound when in use to give audible warning |
| 4413303 |
Ignition systems |
November 1, 1983 |
| An electrical ignition system for a burner in which a spark generation circuit is arranged to charge a capacitor in one sense, and in which a flame sensing device charges the capacitor in the opposite sense, a detector circuit being provided to monitor the presence and polarity of a |
| 4402346 |
Crude oil pipe having layers of graduated permeability to hydrogen sulfide |
September 6, 1983 |
| A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion b |
| 4401144 |
Wheel rims for pneumatic tires |
August 30, 1983 |
| An assembly comprising a wheel rim and an annular safety support member mounted on the rim portion between the rim bead seats and extending radially outwards beyond the rim bead retaining flanges to support a tire mounted on the rim when in a deflated condition. The support member ro |
| 4386685 |
Brake take-up mechanism with a spring biased rotary adjustment |
June 7, 1983 |
| The invention consists of a slack-adjuster for a brake which comprises a pair of interengaged screw threaded members which are urged towards an extended relative position by an axial bias applied to one member. The screw thread has a high helix angle to permit adjustment to take place on |
| 4374208 |
Polyether-urethane foams |
February 15, 1983 |
| A method for the production of a polyether-urethane foam includes the step of incorporating into the foam-forming reaction mixture a degradation product of a starch and/or an acetyl, hydroxypropyl or oxidized derivative of a starch. This additive can be used to substitute up to 80% by we |
| 4373069 |
Elastomer compositions |
February 8, 1983 |
| Tires having good grip on wet road surfaces and low frictional resistance to rolling on the road surface have treads formed from vulcanisates of elastomer compositions comprising a major component consisting of one or more polymers having a glass transition temperature (Tg) of minus |
| 4364734 |
Inflatable marine craft having improved towing characteristics |
December 21, 1982 |
| One or more vanes of a rigid or flexible material are attached to the underside of a liferaft or other towable marine craft. The vane or vanes are suspended from the craft at an angle of 90.degree. or less relative to the direction of towing. |
| 4362121 |
Pressure indicator for pneumatic tires |
December 7, 1982 |
| The invention provides a deflation warning device for a pneumatic tire which gives a clear, positive indication of a predetermined pressure loss by the exposure of a brightly colored element within a transparent dome, all moving parts of the device being fully enclosed and protected agai |
| 4358004 |
Load-taking apparatus for a disc pack |
November 9, 1982 |
| A load-taking device for use in the disc pack of a multi-disc brake assembly. The load-taking device is located at one end of the pack, interposed between the pack and a cylinder for applying thrust to the pack or for resisting thrust applied to the pack. It has an annular support and |
| 4357032 |
Vehicle suspensions |
November 2, 1982 |
| A tandem axle vehicle suspension comprising a beam extending between and pivotally connected at each end to a respective one of a pair of axles and a spring acting between the beam and a vehicle mounting. The spring comprises a pair of springs the axes of which are inclined at equal and |
| 4352704 |
Method of making porous tread |
October 5, 1982 |
| An unpatterned (grooveless) porous tire tread and a pneumatic tire incorporating the porous tread, together with methods of manufacturing the tire tread as a separate item and as an integral part of the tire are described. The tire tread has numerous randomly orientated and randomly |
| 4351382 |
Tire and wheel rim assemblies |
September 28, 1982 |
| A tire and wheel rim assembly having improved bead retention characteristics when run deflated.One or both bead seats is substantially straight and provided with an abutment respectively which is substantially continuous in the circumferential direction. Each abutment has a maximum radia |
| 4350621 |
Elastomer compositions for tire tread |
September 21, 1982 |
| Tires having good grip on wet road surfaces and low frictional resistance to rolling on the road surface have treads formed from vulcanizates of elastomer compositions comprising one or more polymers having a glass transition temperature (Tg) of minus 50.degree. or lower blended with a |
| 4350235 |
Anti-reversal device |
September 21, 1982 |
| An anti-reversal device is provided whereby a wheel and shaft are free to rotate in one sense (B) relative to a stationary member but are prevented from counter-rotating in the sense (C) by engagement of load-bearing pins between teeth of the respective members. The pins are positively d |
| 4343757 |
Method of making game racket frame |
August 10, 1982 |
| A method of making a games racket frame by injecting thermoplastics material into the space (13) between a fusible core (14) and a mould at a temperature above the melting point of the core. The core (14) is shaped to have locating lugs (15) to abut against the internal walls of the moul |
| 4343341 |
Pneumatic tire and wheel rim assemblies |
August 10, 1982 |
| A pneumatic tire having a tread reinforced over substantially the whole of its width by a breaker assembly, a pair of curved sidewalls each terminating in a tire bead and a radially extending reinforcing carcass ply. The tire has a shape factor of less than +0.85 when it is inflated to |
| 4341822 |
Method of and apparatus for impregnating fabric reinforcement structures with a liquid impregnan |
July 27, 1982 |
| A method of and apparatus for impregnating a fabric reinforcement structure with a liquid impregnant especially suited for impregnants which set rapidly under normal conditions. The reinforcement structure is continuously advanced through a column of liquid impregnant to which impreg |
| 4340226 |
Games racket |
July 20, 1982 |
| A hollow injection moulded thermoplastics games racket frame comprising a head (21) and a shaft (20), the head (21) having integrally-formed internal supports (25) containing the stringing holes (23) and the moulding being polyurethane foam-filled. The foam filling is provided in two |
| 4334567 |
Tires |
June 15, 1982 |
| A tire whose tread comprises as elastomer a styrene-butadiene or a styrene-isoprene co-polymer having a glass transition temperature above minus 50.degree. C., said composition having a rebound resilience of 55% or more.The glass transition temperature is preferably between minus 40.degr |
| 4332701 |
Sprayable high solids polyester resin compositions |
June 1, 1982 |
| There are disclosed thermosettable polyester resins which are the reaction products of specified amounts of a benzenedicarboxylic acid component (e.g.: 1,3-benzenedicarboxylic acid), a trihydroxy alkyl component (e.g.: 2-ethyl-2-(hydroxymethyl)-1,3-propanediol), a short chain alkylene di |
| 4330634 |
Foam composites |
May 18, 1982 |
| The invention relates to the production of foam composites which are thermally insulating and light and therefore suitable for use as e.g. ceiling tiles, wall tiles and brick insulation.The aim of the invention is to produce a light, strong composite as cheaply as possible. The method co |
| 4330057 |
Platform conveyors |
May 18, 1982 |
| Platform for passenger conveyor comprising a rigid flat plate having a wheel set attached to each end. Each wheel set comprising a main support wheel positioned on a guide rail and a retaining wheel positioned on the underside of the rail. The axis of the two wheels being spaced-apart in |
| 4328971 |
Dartboard |
May 11, 1982 |
| Conventional dartboard wiring grids and their attachment structures obscure a significant proportion of the target areas. The invention aims to provide an improved definition of target areas by using fine high tensile wires for the grid. The grid is formed in such a manner that the fine |
| 4325422 |
Pneumatic tire and wheel rim assemblies |
April 20, 1982 |
| A pneumatic tire and wheel rim assembly is disclosed in which the rim bead seats are defined by grooves having radially directed side portions which retain the associated tire bead against movement in an axial direction and each rim bead seat includes means in engagement with the tire be |
| 4324835 |
Cellular intumescent materials |
April 13, 1982 |
| A cellular intumescent material comprising a substantially open-called substrate impregnated with a flexible intumescent polymer. The open-celled nature of the substrate is retained. The substrate may be a latex or urethane-based foam, a natural rubber or a synthetic rubber. The impr |
| 4320790 |
Tire treads |
March 23, 1982 |
| A tire tread and a tire including a tread when the tread width is divided into circumferentially extending ribs by two or more circumferential grooves and at least one rib is subdivided into tread elements by transversely extending slots. The grooves are such that they close in the c |
| 4318875 |
Process for the production of cellular elastomeric compositions and compositions obtained thereb |
March 9, 1982 |
| A cross-linked, cellular elastomeric composition is made from a formulation which includes one or more natural and/or synthetic rubbers, a cross-linking agent, a monomeric metallic salt of an ethylenically-unsaturated carboxylic acid and a blowing agent. The metallic salt is preferab |
| 4311547 |
Method of making reinforced tubular articles |
January 19, 1982 |
| A reinforced tubular article such as a hose is manufactured by at least partially vulcanizing a rubber composition to form an inner tube and forming on the outer surface of said inner tube an assembly of reinforcing members which are united with the inner tube by a solidifiable liquid |
| 4311180 |
Pneumatic tire capable of being driven deflated |
January 19, 1982 |
| A pneumatic tire having a tread and a pair of sidewalls each terminating in a tire bead in which, in use, of the tire on the wheel rim for which it is designed, the sidewalls are so shaped and reinforced that they are placed in tension when the tire is inflated to its normal working pres |
| 4310579 |
Elastomeric elements |
January 12, 1982 |
| An elastomeric element, suitable for use in a flexible coupling for transmitting torque between two relatively rotatable components, comprises an elastomeric element having an embedded reinforcement of a plurality of parallel interleaving fabric layers spaced apart by a layer of elastome |
| 4305622 |
Wire wheels sealing structure |
December 15, 1981 |
| A wire wheel is provided in which some of the array of spokes extending between the hub and the rim penetrate the latter in the outboard bead seat. This bead seat is of smaller diameter than the inboard bead seat but is covered by a ribbon of a plastics material the outer diameter of whi |
| 4305589 |
Shuttlecocks |
December 15, 1981 |
| The invention relates to moulded plastics shuttlecocks and aims to provide a moulded shuttlecock that resembles a Feather shuttlecock in appearance and simulates feather shuttlecock flight properties more closely than conventional moulded shuttlecocks. The visible effect is achieved by |
| 4305583 |
Play ball |
December 15, 1981 |
| The invention relates to playballs, e.g. tennis balls, having a core pressurized with a low permeability gas, e.g. sulphur hexafluoride. Use of such gases can cause the ball to emit a pinging noise on bouncing. The invention provides a core (1) pressurized with gas of low permeability, |
| 4304281 |
Pneumatic tires and wheel rim assemblies |
December 8, 1981 |
| A tire having a coating of a gelled non-volatile lubricating material disposed on at least the interior surface of the tread to facilitate relative movement between contacting portions of the interior surface of the tire when the tire is driven deflated. The coating is incapable of f |
