baber/WOPTO huggingface dataset:
Patent GB-829236-A (GB)
Title: Friction lining for brakes, clutches and the like
IPC: F16D69/02
Filed: 1957-07-22
Abstract: A friction material comprises a ceramic material embedded in a matrix of metals selected from a group including iron, copper, nickel, brass and bronze, together with a wear inhibitor which may comprise between 3% and 20% by weight of the article consisting of bismuth, antimony and/or cadmium.  The matrix metals may include lead, zinc or tin. Typical formulae are copper 60%, mullite 20%, silver 5%, bismuth 15% or iron 67.5%, mullite 20%, silver 5%, bismuth 7.5%.  Other friction producing ingredients that may be used in place of silica are alumina (Al2O3) and magnesia (MgO).  Other constituents may comprise graphite, which if in flake form is preferably of less than about 325 mesh, and lead oxide.  The mullite referred to above, which may be derived from sillimanite, andalusite or kyanite i.e. used in particle size ranging from -35 to -200 mesh.  A typical process consists in mixing the powdered metals of the matrix, the ceramic, the wear inhibitors, lead and graphite which have been previously screened to the previously indicated particle size.  They are thoroughly mixed and blended in a conical blender and the constituents reduced to remove all agglomerates.  The material is wetted by oil to prevent segregation and then compacted in a retaining cup at a pressure of about 60,000 p.s.i.  Sintering then takes place in a reducing atmosphere by heat treatment of about 1575 DEG F. for about one and a half hours.  A second pressurization at about 100,000 p.s.i. may be applied later.
Patent GB-515778-A (GB)
Title: A tram-road system for road vehicles and road trains
IPC: B62D1/26
Filed: 1938-08-05
Abstract: 515,778. Steering vehicles. CIOCCA, G. Aug. 5, 1938, No. 23184. Convention date, Feb. 22. Addition to 499,694. [Class 79 (v)] In a tram-road system for road vehicles of the parent Specification, wherein a roadway is formed with a central raised guideway the sides of which are engaged by tracking rollers, carried by elastically constrained lever arms on the vehicles, a vehicle is employed having at each end thereof steerable road wheels associated with tracking members, the tracking gears at the two ends of the vehicle being independent of each other. The arrangement may be that, with a four-wheeled vehicle, though all the wheels are steerable, means are provided to render the rear pair of wheels according to the direction of travel, for the time being, non - steerable. Such an arrangement is shown in Fig. 1, wherein at each end of the vehicle, tracking rollers 3 are carried by levers 4 pivoted on the axle 5 and connected by' transverse bars 8, 9, so as to form an articulated parallelogram, one bar 9 being detachably connected to the track rod 6 of the usual steering linkage whilst the other bar 8 is resiliently constrained by a centralising device 44 tending' to keep the steering straight. On the levers 4, arms 31 project inwardly towards the longitudinal centre line of the vehicle and adjustable stops 32 are arranged so that when brought into engagement with either pair of arms 31, the tracking levers 4 together with the steering means at that end of the vehicle are rendered immobile. For this purpose, as shown in Fig. 2, each stop 32 is carried on a screwed shaft 33 rotatably mounted in a bearing 34 attached to the underside of the axle 5 and adapted to be rotated through a telescopic shaft 35 with universal joints 46 by a handwheel 36 on the end of the vehicle. The two screwed shafts 33 are connected by a shaft 38 so that concurrent adjustments may be effected from either end of the vehicle. In the case of vehicles with three or more pairs of wheels the steerability of the front and rear pairs of wheels may be retained and in a construction of this nature, (Fig. 3, not shown) levers 4 connected by transverse bars 8, 9 are provided on each end axle as in the form shown in Fig. 1, but with tracking rollers 3 at each end of each lever 4, equidistantly from the axle. The centralizing device 44 is the same as that described in Specification 515,654.
Patent GB-1139344-A (GB)
Title: Improvements in electric circuit breakers for dc circuits
IPC: H01J17/34
Filed: 1966-05-25
Abstract: 1,139,344. Cold-cathode tubes. ALLM€NNA SVENSKA ELEKTRISKA A.B. 25 May, 1966 [26 May, 1965], No. 23246/66. Heading HID. The anode 3 of a high voltage D.C. circuit breaker tube is protected from excessive electron bombardment by connecting the anode through a resistor 6 to a ring-shaped auxiliary electrode 4 which is connected to the positive pole of the supply. The value of the resistor 6 can be so selected that the whole of the electron current 7 from the cathode 2 is collected by the electrode 4. Additional auxiliary electrodes and associated resistors may be provided (Fig. 2, not shown) to accommodate changes in voltage. The distance between the electrodes may be variable and the resistors may be non-linear to accommodate current variations.
Patent GB-1037689-A (GB)
Title: Medicinal tablet
IPC: A61K9/24
Filed: 1964-06-04
Abstract: An analgesic tablet comprises at least two juxtaposed layers, one being sodium salicylate and another comprising acetylsalicylic acid and substantial portion of which is associated with a release retardant, said salicylate and acid being present in a ration of between 1 : 1.4 and 1 : 7 by weight.  The layers need p  not be flat. A non-retarded portion of acetylsalicylic acid may be mixed with the retarded portion in one layer or it may form a separate layer of the tablet.  Specified retardants are shellac acetate-crotonic acid copolymers, cellulose acetate phthalate, vinyl acetate-maleic anhydride copolymers, polymethacrylic acid, copolymers of ethylene and maleic anhydride, hydrogenated castor oil, hydrogenated soybean oil, glyceryl monostearate, diglycol stearate, cetyl and stearyl alcohols, palmitric and linoleic acids, beeswax, carnauba wax, and thickeness e.g. bentonite, methylcellulose, acacia.  The release retardant need not form a coating on the acetylsalicylic acid particles.  The tablets may include lubricants e.g. talc, Mg stearate, stearic acid; disintegrators e.g. starch, lactose, Na carboxymethyl cellulose; resins e.g. ion-exchange resins; binders e.g. gelatin, acacia, polyvinylpyrrolidone, sugar syrup; dyes, fillers, pigments, flavouring agents, and odorants.
Patent GB-455250-A (GB)
Title: Improvements relating to hot water apparatus
IPC: F24H1/18
Filed: 1935-08-19
Abstract: 455,250. Electric water heaters. KONINKLIJKE FABRIEK INVENTUM NAAMLOOZE VENNOOTSCHAP, Bilthoven, Holland. Aug. 19, 1935, No. 23305. Convention date, March 4. Addition to 386,221. [Class 39 (iii)] In hot-water apparatus comprising a closed hot-water tank 2 with an air vent or overflow tube 6 heated indirectly by water in an inner vessel 3 containing a heater 4 and closed at the bottom and open at the top which has an air lock 11 with a pipe 5 by which air can escape until the water reaches a predetermined level beneath the top at which it is automatically maintained, a water lock 10 is provided at the top so that water supplied thereto enters the inner vessel until no air can escape through the air vent 5 but will not enter when the vent is closed; water being supplied to the water lock when level in the tank is low. The water inlet pipe 7 may have an external valve and be extended at 12 to deliver direct to the water lock 10. The height of the inner vessel 3 is much less than that of the tank, but is enough to submerge the electric heater 4 and thermostat 9. Hot water is delivered at 8 and cold water may be fed in from a tank 1. A water gauge 14 may be provided to indicate the minimum level to which the tank should be kept filled. Specification 447,338 is referred to.
Patent GB-186245-A (GB)
Title: Electrical connectors and terminal blocks
IPC: H01R13/56
Filed: 1921-09-02
Abstract: 186,245. Fairweather, W., (Singer Manufacturing Co.). Sept. 2, 1921. Plug-and-socket couplings.-A plug connector comprises an insulating housing having apertures set at an angle to each other so that terminal plugs may project in either of two clirections. An angular plug as shown in Fig. 13 may be used alternatively with straight ones or adjustable plugs as in Fig. 12 may be employed. The plugs 9 are secured to seatings in the base portion 1 of the housing, a connector plate 18 being independently secured to this portion also. Channels 16, 17 are provided so that two pairs of circuit leads may be connected to the two plugs to supply for example lighting and motor circuits, the connector plate 18 facilitating series connection of a controlling resistance in the motor circuit. The back of the base portion 1 is channelled as shown in Fig. 7 to accommodate the wires and the cover portion 2 is formed with grooves and recesses as a web to the base and with the alternative apertures 12. A screw 25 secures the base to its support 24, for example a sewing-machine, and screws 25 pass through the base to secure the cover. The device is used with a loose socket member 11 attached to supply wires which by suitable arrangement of the plugs may be applied in either of two directions.
Patent GB-488277-A (GB)
Title: An anti-dazzle device for use on vehicles
IPC: B60J3/02
Filed: 1936-10-27
Abstract: 488,277. Antidazzle screens for vehicles. GELSTHORP, R. Oct. 27, 1936, No. 23388. [Class 103 (ii)] An antidazzle device for the use of vehicle drivers comprises a screen b, e.g. of the material known under the Registered Trade Mark " Celastoid," fixed in a V-shaped metal frame a formed integral with part of a friction holder c consisting of cone-shaped members c<1>, c<2>, adapted by means of a nut j to be pressed into contact with the tapered ends of a tube i, a rod d being fixed at one approximately to the centre of the tube and having its other end secured to one part of a flat friction joint e, the other part of which is secured to one end of a second rod f fixed at its other end to the tube of a second friction holder g similar to the holder c and having one cone-shaped member formed with a bracket by which the device may be attached to the roof or other part of a vehicle.
Patent GB-843487-A (GB)
Title: Improvements in or relating to siphon-operated flushing cisterns
IPC: E03D1/05
Filed: 1956-08-15
Abstract: 843,487. Siphon-discharge flushing cisterns. DONALD, P. G., and ASSOCIATED BUILDERS MERCHANTS Ltd. Aug. 15, 1956 [Aug. 15, 1955], No. 23446/55. Class 26. In a flushing cistern which may be moulded from plastic, including a stand-pipe 4 for siphonic discharge mounted in a tank with a well 2 by means of an aluminium member 9 in a hole 3, the external surface of the portion 5 of the pipe 4 is flared outwardly towards its lower end to give an annular abutting surface of relatively large cross-section engaging with the bottom of the tank 1, and the mounting member 9 is threaded to be held in position by a rib 11 and nut 16 with a washer 16a or by means of a cooperating thread in the hole. A bell 17 fits over the part 5 to define with the latter a space from which water can be forced thereinto by longitudinal movement of the bell 17 to initiate siphonage, and which is of substantially uniform cross-sectional area before and after siphonic action is initiated, and converges upwardly. The parts 5 and 9 may be moulded integrally with one another from plastic. The part 5 may be of plastic and the part 9 secured to it during moulding, e.g. by ribs 10 and 11. The member 9 when of aluminium is joined to existing plumbing by screwing into a socket of a cylindrical member of polythene externally threaded at the other end for connection to the plumbing.
Patent GB-1249805-A (GB)
Title: Electrical connectors
Inventor: GREGORY KENNETH LAURENCE
IPC: H01R13/62
Filed: 1969-05-08
Abstract: 1,249,805. Two-part couplings. VAUXHALL MOTORS Ltd. 30 April, 1970 [8 May, 1969], No. 23546/69. Heading H2E. An electrical connector comprises two plastics blocks, Figs. 2, 4 carrying plug contacts 6 and socket contacts 16 respectively. One of the blocks is formed with two resilient limbs 8, 10 each having a barb 12, 14 at its free end which fits in a corresponding aperture 22, 24 in one of a pair of lugs 18, 20 on the other block. The crosssectional areas of the limbs 8, 10 and apertures 22, 24 are unequal to ensure correct coupling. The limb 8 is fitted with an electrical strip contact 30 held in a groove in the limb by a detent 34 in a recess 36. The end of the contact remote from an attached conductor is bent so as to lie on the limb surface and abut the barb 12. A corresponding contact 38 is fitted in the lug 18 on the other body by a detent 42 and connection between the contacts 30, 38 is not made until the two blocks are correctly mated, and this mating may be checked by an electrical continuity test on the circuit between contacts 30, 38. In an alternative embodiment, Fig. 9, two plastics blocks 48, 50 house plug contacts 54 and socket contacts. A barb 58 on the body 48 engages in the aperture in a lug 76 on body 50 when the end 70 of body 50 is fitted within the end of the body 48. Contacts 62, 82 are crimped to conductors of cables 56, 68 and fit on the end of the body 48 and lug 76 respectively.
Patent GB-841938-A (GB)
Title: Improvements in and relating to polyphase tap-changing switching devices for use in combination with regulating transformers
IPC: H01F29/04
Filed: 1958-07-22
Abstract: 841,938. Transformers. SMIT & CO'S. TRANSFORMATORENFABRIEK N.V., W. July 22, 1958 [July 22, 1957], No. 23571/58. Class 38 (2). Three-phase on-load tap-changing equipment comprises an on-load changeover switch having fixed contacts 22-27 and three movable switching contacts 28, 29, 30, each having auxiliary contacts connected to the main contacts through resistances and two off-load selector switches each with pairs of bridging contacts 34, 35 and 39, 40 which co-operate respectively with tappings 36, 37, 38 on secondary winding coils 1, 2, 3 and tappings 41-45 on separate secondary coils 46. To increase the voltage from the position shown, where the star point 47 is connected to the lowest tapping 36, the changeover switch is rotated to contacts 23, 25, 27 when connection is made through bus-bars 49, 51, 53 and bridging contact 39 to tapping 41 inserting the first section of coils 46, contact 35 being closed. For a further increase contacts 40 are moved to connect tappings 42 to the bars 48, 50, 52 and the changeover switch is rotated to make circuits through contacts 24, 25, and 26. Other arrangements are described, one (Fig. 1, not shown), having only one selector switch while in the two others (Figs. 3 and 4, not shown), the coils 46 provide respectively seven and eight small voltage steps instead of six and the changeover switch has respectively seven and eight fixed contacts round its circumference.
Patent GB-701089-A (GB)
Title: Carbon pile armature assembly
IPC: H02P9/22
Filed: 1952-09-19
Abstract: 701,089. Automatic regulation. BENDIX AVIATION CORPORATION. Sept. 19, 1952 [Oct. 3, 1951], No. 23608/52. Class 38 (4) In a regulator of the type comprising a carbon pile, a solenoid which includes a pole piece and an armature having an air gap therebetween, and a removable core, the armature has an adjustable member accessible for adjustment upon the removal of said core whereby the air gap may be adjusted. As shown the core 8 is screw threaded into the bottom plate 6 and a coil 9 is contained within the housing 7. An armature plate 14 is secured to a diaphragm type spring 12 by a clamping plate 15, and a member 18 which engages a carbon pile (not shown) is supported on the plate 15 but insulated therefrom by a member 19. The armature plate comprises a fixed member 20 having a threaded projection 22 which carries the internally threaded adjustable member 21, the projection 22 having an internally threaded hole 23 provided with sloping walls and slits 25 whereby a screw 26 locks the parts 20 and 21 together. Holes 27 are provided in the member 21 to receive an adjusting tool and a tool may be inserted in the slots 25 to prevent the armature assembly from turning during adjustment. In an alternative arrangement, Fig. 3, (not shown), a spring washer between the fixed and adjustable portions of the armature provides the locking means.
Patent GB-962136-A (GB)
Title: Improvements in method and apparatus for distilling water
IPC: C02F1/08
Filed: 1961-06-30
Abstract: 962,136. Salt water distillation. GENERAL ELECTRIC CO. June 30, 1961 [July 20, 1960]. No. 23635/61. Heading B1B. Water containing minerals is distilled at atmospheric pressure by distributing it in the form of a film down a surface maintained at a predetermined temperature below the boiling point of the water at atmospheric pressure, the water-vapour diffusing from the film being condensed on a cooled surface which faces the evaporating surface. The heat-transfer system of a refrigeration circuit may be used to maintain the temperature differential between the two surfaces. The salt water is pumped through line 5 and heat exchanger 7, where it is heated by discharged concentrated brine in line 8. Further heat can be supplied in heating zone 10 if necessary. The hot water passes into line 11, where it joins a stream of recirculated brine, and the mixture overflows from vessel 13 at the weir 14 to descend the evaporator surface 2 as a hot film of liquid. Partial evaporation of water takes place, and the vapour diffuses through the air-space between surface 2 and cooler surface 4, where it condenses, and the condensate drains to a receiver 24, and is then collected in storage tank 26. The concentrated brine on surface 2 drains into the receiver 20, and part of it is pumped to recirculation line 11, the rest of it being discharged from the apparatus via valve 23 and line 8. The refrigeration circuit 30 maintains the temperature differential between surfaces 2 and 4, and consists of a compressor 32, heat exchanger 34, condenser 37, expansion valve 40 and evaporator 43. The refrigerant leaving compressor 32 and heat exchanger 34 passes by line 36 into the condenser 37, where it condenses, losing heat to surface 2. It then passes through the expansion valve 40 and evaporates in evaporator 43, withdrawing heat from surface 4 in the process. The vapour then returns to compressor 32 via line 44 for recycling for further use as a heating medium. Monochlorodifluoromethane is mentioned as a suitable refrigerating medium.
Patent GB-151975-A (GB)
Title: Improvements in guideways for planing machine tables and the like
IPC: B23Q5/22
Filed: 1920-08-12
Abstract: 151,975. Conradson, C. M. Oct. 2, 1919, [Convention date]. Planing.-In planing and like machines, improved lubrication and reduced wear of bearing and guide surfaces are secured by forming the bed and table with the weight-carrying surfaces nearly horizontal and of much greater area, the lateral guides 7 being nearly vertical.
Patent GB-463408-A (GB)
Title: Improvements in or relating to suction cleaning and sweeping machines
IPC: A47L5/30
Filed: 1935-08-23
Abstract: 463,408. Vacuum cleaners. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and FRAME, W. J. Aug. 23, 1935, No. 23703. [Class 8 (i)] In a suction cleaning and sweeping machine of the kind in which a rotary brush is mounted in the floor suction nozzle and a clutch is provided for interrupting the drive to the brush at will, a friction clutch element 18 is mounted on the spindle 6 of the fan 2 which may be driven by an electric motor or by other means, the element 18 having a pin-and-slot connection 19 with the shaft 6 and being urged by a spring 20 against a friction clutch element 17 carried by a shaft 7 having a pulley 8 which by a belt 9 drives the spindle 4 of the brush 21 mounted in the nozzle 5. The shaft 7 is mounted in bearings 11 in a sleeve 12 mounted within a tube 13 enclosing the clutch parts and mounted in a member 14 having an operating handle 15 working in an inclined slot 16. The clutch can disengage if the brush jams ; on movement of the handle 15, the sleeve 14 and the shaft 7 carried thereby are moved axially so that the driven part 17 of the clutch is moved away from the driving part 18 and the drive to the brush discontinued. One or more brushes may be provided on the brush spindle 4 which is removably mounted in the nozzle 5, each end of the spindle being carried in ball bearings, the housings of which are mounted in spring clips 10.
Patent GB-938148-A (GB)
Title: Improvements in or relating to motor driven blower units
Inventor: CROFT WILLIAM CHARLES
IPC: F04D25/02
Filed: 1959-07-10
Abstract: 938,148. Motor driving arrangements. PLESSEY CO. Ltd. July 7, 1960 [July 10, 1959], No. 23744/59. Class 35. [Also in Group XXVI] Blowers 6 of the centrifugal or axial flow types are driven by an induction motor 5 through speed increasing epicyclic gearing 13, the common shaft 7 of the two blowers being accommodated within the hollow motor shaft 1. A single blower may be used.
Patent GB-168766-A (GB)
Title: Improvements relating to grinding machines
IPC: B23F23/12
Filed: 1920-08-14
Abstract: 168,766. Orcutt, H. F. L., and Gear Grinding Co., Ltd., Aug. 14,1920. Trueing rotating tools.-In a grinding-machine having a trimming-device for the grinding-wheel, means are provided for enabling the wheel to be set so that it occupies a definite predetermined position relatively to the trimming-tools during the operation of trimming; means may also be provided for preventing accidental starting, during trimming, of the wheel-reciprocating mechanism. The invention is shown in Figs. 1 and 2 applied to a machine, in which the grinding-wheel a is mounted on a slide b, which is reciprocated through a crank-disc e. The disc has therein an aperture f so positioned that it may be engaged by a plug g when the axis of the grinding-wheel lies in the plane of movement of the trimming- tools c; the tools are thrown into and out of operation by a lever d. The plug is moved by engagement with a cam-slot i in a sliding bar h moved by the lever d, movement of the lever thus moving the plug into the aperture and starting the trimming-mechanism. In order to prevent starting of the reciprocating-mechanism of the slide b whilst trimming the vvheel, the bar h has an extension carrying a gate k into which the lever l, controlling the reciprocating-mechanism, passes when the machine is stopped. Endways movement of the gate thus prevents starting of the machine except when the plug g and the trimming-tools are inoperative. In a modification, the lever controlling the trimming-tools is independently operable, and the plug is moved into the aperture by a lever which also moves the gate.