baber/WOPTO huggingface dataset:
Patent GB-692104-A (GB)
Title: Improvements in or relating to coupling devices for pipes and the like
Inventor: BELL JOHN ERNEST
IPC: F16L23/06
Filed: 1950-08-22
Abstract: 692,104. Pipe couplings. BRISTOL AEROPLANE CO., Ltd. Aug. 15, 1951 [Aug. 22, 1950], No. 20803/50. Class 99 (i). A coupling for the tail pipe of a gas turbine comprises a pair of flanged coupling members 14, 16 having a number of circumferentially spaced brackets 18, 24 carrying co-operating links 19 and bell-crank levers 22 respectively, the levers being actuated by the contraction of an encircling band 12 to draw the coupling members together. Each lever has a hooked arm 27 engaged by a pin 21 of the U-shaped link 19, and an arm 25 which lies parallel to the joint axis and has a hole 26 through which the band passes. The ends of the band have a hook and eye fastening 31, Fig. 5, and a turnbuckle 28. The band is kept clear of the pipe by rollers 33, 34 engaging a plate 35 secured to the member 16. The coupling members 14, 16 have tapered sockets engaging an olive 17, Fig. 3, which has a greater co-efficient of expansion than that of the coupling members.
Patent GB-627184-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/04
Filed: 1947-07-31
Abstract: 627,184. Switch covers. M. P. STAINLESS PRODUCTS, Ltd., and McLEMAN, W. July 31, 1947, No. 20819. '[Class 38(v)] The cover 15 of a tumbler switch is secured by screws 16 which engage threaded holes 17 in a member 18 secured to the base by means of the bridge securing screws which pass through holes 20 in the member. The cover 15, member 18 and dolly 14 are preferably all insulating. Specification 616,502 is referred to.
Patent GB-358974-A (GB)
Title: Improved manufacture of bituminous road materials
IPC: C08K5/05
Filed: 1930-07-10
Abstract: The binding-agent used in the preparation of road surfaces comprises a bituminous material mixed with a volatile diluent which is wholly or in part soluble in water, e.g. alcohol or acetone.  In examples, (1) 960 kilos of coal tar are mixed with 40 kilos of acetone, (2) 700 kilos of petroleum asphalt of melting point about 30 DEG C. and 200 kilos of anthracene oil are mixed with 100 kilos of ethyl alcohol.
Patent GB-1331820-A (GB)
Title: Impurity doping of semi-conductor substrate
IPC: H01L21/316
Filed: 1971-04-19
Abstract: 1331820 Diffusion into semi-conductors INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [19 Feb 1970] 20972/71 Heading H1K Boron, phosphorus, arsenic, or antimony is diffused into the surface of a silicon or germanium body from a layer which has been formed by the thermal decomposition of a coating containing a siloxane and a compound of the impurity element. The (organic) compound of the impurity element may act as a solvent for a polysiloxane, the resultant coating being applied to the surface using a spin-coater. Impurity compounds mentioned are B(OR) 3 , P(OR) 3 , As(OR) 3  and Sb(OR) 3 ; where R is an alkyl or aryl group containing from one to six carbon atoms.
Patent GB-444748-A (GB)
Title: Improvements relating to the extinguishing of fires in rooms
IPC: A62C2/06
Filed: 1934-07-19
Abstract: 444,748. Fire-extinguishing. SOC. OF CHEMICAL INDUSTRY IN BASLE, Basle, Switzerland. July 19, 1934, No. 21138. Convention date, July 7. [Class 47 (ii)] A room is provided with an air-tight closure, shown as a roller shutter 2, for the doorway 1 and an air-tight shutter 4 for the window 3, and with a channel connecting the lower part of the room with the outside and fitted with flaps 5 adapted to open outwardly. It is stated that a fire occurring in the room causes hot combustion products to collect in the upper part of the room, the closures 2, 4 having been closed by hand or automatically, and unconsumed air to be extruded through the channel in the floor, so that the fire is quickly extinguished. Preferably, an inlet with an inwardly-opening flap 6 is provided in the upper part of the room to allow air to enter the room when the fire is extinguished. Alternatively, the flap in the floor channel may open in both directions. The Specification as open to inspection under Sect. 91 described also arrangements in which the floor channel was fitted with a rupturable diaphragm, a water seal, an exhaust fan, or a flue rising to the upper part of the building. This subject-matter does not appear in the Specification as accepted.
Patent GB-1487478-A (GB)
Title: Tube plate assemblies
IPC: F28F9/16
Filed: 1976-04-23
Abstract: 1487478 Tubular heat exchangers ASSOCIATED ELECTRICAL INDUSTRIES Ltd 23 April 1976 [19 May 1975] 21218/75 Heading F4S [Also in Division F2] In a heat exchanger, having a plurality of tubes 3À1 projecting through respective holes in a tube plate 2, replacement tubes are secured relative to the tube plate in a secondary plate 4 having holes aligned with those in the tube plate for receiving the replacement tubes which are secured in a fluid tight manner in the plate 4, e.g. by expansion thereof or by welding. The plate 4 may be thinner than, and formed of a material of lesser strength than the plate 2, and is sealed relative thereto by welding around the edge or by the interpositioning of a sealing member, e.g. an 0-ring 9 between the plates before peripheral clamping thereof via means 8. Some of the tubes may be secured, e.g. by welding, to both plates.
Patent GB-829530-A (GB)
Title: Anti-slip and protection means for gramophone record discs
IPC: G11B3/68
Filed: 1958-07-03
Abstract: 829,530. Phonograph &c. records. BLUNDELL, D. A. July 3, 1958, No. 21298/58. Addition to 816,287. Class 40 (2). A rubber or like ring 1 for fitting around the periphery of a gramophone record comprises a cut length of extruded material provided with a butt joint 10, with or without the tab 11.
Patent GB-263440-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/12
Filed: 1926-08-30
Abstract: 263,440. Callahan, J. J. Aug. 30, 1926. Screw propellers.-Propeller blades are made with the working face in two parts, the front part being arranged as a screw surface and the after portion being in a plane at right angles to the plane of rotation and acting as a compressor face. The blades 11 are formed on the driving face with a forward screw surface 12 of greatest width at the middle 14 and a compressor surface 13 in a plane at right angles to the plane of rotation of greatest width at the hub and tapering toward the tip. The blade is inclined forwardly at the root and changes gradually into a rearward inclination at the tip. The blade roots extend beyond the boss and meet on the axial line of the shaft. The back face 17 of the blade is a continuous screw surface.
Patent GB-126919-A (GB)
Title: Improvements in Cigarette and Cigar Cases.
Inventor: THOMAS JOSEPH LOUIS MARIE
IPC: A24F15/14
Filed: 1918-12-19
Abstract: 126,919. Thomas, J. L. M. Dec. 19, 1918. Contents, delivering; partitioned cases. - A cigar or cigarette case comprises a body a, Figs. 2 and 3, open at the upper end and adapted to be closed by a cover c, to which is secured a plate d carrying the internal fittings of the case. The cigars &c. are ejected singly through an aperture a<1> by means of a finger g<3> on a pivoted plate g operated by a push-button h<1>. The cigars are pressed downwards in the case by a removable device comprising a plate k, which is acted upon by spring-pressed pivoted arms. The aperture a' is adapted to be closed by a sliding plate b operated by a knob b<1>. In a modification adapted to hold two rows of cigars, &c., the cover c carries two partition plates d, Fig. 11, between which is arranged a pivoted plate g with two ejecting- fingers g<3>. One of the fingers g<3> may be rendered inoperative by a slide a<3> adapted to raise bodily one of the rows of cigars, &c.
Patent GB-658077-A (GB)
Title: Improvements in cranes with vertically adjustable jibs
IPC: B66C23/10
Filed: 1949-08-16
Abstract: 658,077. Jib cranes. WULLSCHLEGER, A. Aug. 16, 1949, No. 21338. Convention date, Aug. 17, 1948. [Class 78 (iv)] In a load-lifting device for cranes with vertically adjustable jibs, the load cable pull and the jib lifting mechanism set up in two interconnected rotating bodies oppositely directed torsional moments which counterbalance so that when the rotating bodies are actuated by means of the jib lifting mechanism the handling radius of the jib is altered, the load is horizontally shifted and the weight of the jib is counterbalanced. The jib is pivotally mounted on a pillar 4, 5, 6 and a hauling rope 9 has a hook 7 for the load. The rope 9 is connected at one end to a cable drum 14 and the other end connected to a drum 15. A cable 22 has one end connected to the drum 23 and passes round sheaves 18 and 19 and is connected to the block at the other end. The block is also connected to the jib. On rotating the load cable drums 15, 23, the jib is raised and the diameters of the drums are so chosen that the moments of the forces acting are balanced. The weight of the jib is balanced by weight P, Fig. 4. The load moves along a horizontal path. Instead of pulley tackle, mechanical lifting-gear without cables may be used.
Patent GB-1379653-A (GB)
Title: Yarn feed mechanisms
IPC: D05C15/18
Filed: 1972-05-08
Abstract: 1379653 Tufting machines EDGAR PICKERING (BLACKBURN) Ltd 8 May 1973 [8 May 1972] 21393/72 Heading D1G Apparatus for feeding yarns to a tufting machine comprises two sets of intermeshing bars 17, 19 on respective circulating carrier chains 18, 20, one set of bars 19 being adjustable transversely to their length to vary the lengths of the pile tufts, the drive to this set of bars being by way of a universal joint 58. Both chains 18, 20 run over adjustable slide blocks 36, 42. The apparatus may consist of a number of sections spaced across the width of the machine, and all of which are adjustable simultaneously by a manually operated wheel 57. The chains 18 are tensioned by shifting an idler wheel 28 over which it runs by means of handles 27.
Patent GB-1352353-A (GB)
Title: Building element
IPC: E04C1/00
Filed: 1971-04-19
Abstract: 1352353 Interlocking building blocks H T LUDVIGSEN 19 April 1971 [10 Feb 1970 8 July 1970] 21432/71 Heading E1B A building block 1 for walls, pavings, dykes or toys has two mutually parallel sides 2, 3, end faces formed for engagement with the associated one of a similar block adjacent the end, and two further sides adapted to interlock with the sides of adjacent elements in halfbrick order to prevent relative movement therebetween in a plane parallel to those generally associated with the courses of said further sides, the two further sides each consisting only of two sections each defined by two divergent surfaces inclined to a perpendicular to the mutually parallel sides. The blocks may 'be used with or without a bonding agent and the facing side may be formed with an integral wearing surface in the form of a prism for use as a step.
Patent GB-1184672-A (GB)
Title: A Shaving Head for an Electric Shaver.
IPC: B26B19/04
Filed: 1967-05-09
Abstract: 1,184,672. Dry shavers. INVENTA TRUST REG. 9 May, 1967 [27 Oct., 1966], No. 21466/67. Heading B4B. Each of the cutter blades 5 of a longitudinally vibratable cutter head 4 has a portion which is straight or has only a slight curvature over a chord extending between points 6 and 7. The cutter head is pivotally supported on pins 10 and is pressed against a shaving plate 2. The cutter head may have a rocking movement imparted thereto as in Specification 1,175,459. The plate 2 in the portions thereof corresponding to the strongly curved portions 6 and 7 is provided with circular (not shown) or hexagonal apertures, the remaining portions of the plate having oblong apertures.
Patent GB-1495820-A (GB)
Title: Fluid flow measuring system
IPC: G01F15/04
Filed: 1975-05-20
Abstract: 1495820 Measuring fluid-flow RCA CORPORATION 20 May 1975 [28 June 1974] 21486/75 Heading G1N(A) A fluid-flow measuring system comprises a heating transistor 20 thermally coupled to fluid 14 flowing in a first channel 12, a heating transistor 22 thermally coupled to stationary fluid in a second channel 18 and means for producing a signal proportional to the difference in power dissipated by the two transistors in maintaining their temperature a constant number of degrees higher than the ambient temperature of the fluid as measured by a temperature sensitive diode 32, the power difference signal being squared to produce an output signal. The output signal is said to be linearly proportional to the rate of flow of fluid and to be substantially compensated for changes in density of the fluid which alter the thermal conductivity between the semi-conductor chips 24, 26 and the fluid. Battery 40 supplies substantially constant currents to the temperature sensitive diodes 28, 30, 32 via high resistances 42 and a substantially constant voltage to the collectors of transistors 20 and 22, via low current-sensing resistors 64. Differential amplifiers 36, 38 maintain a constant temperature difference between each of the chips 24 and 26 and the chip 34, which temperature difference, 30C for example, is determined by the voltage of batteries 48 and 56. Differential amplifier 62 produces a power difference signal which is squared by squaring amplifier 72. The system may be used in a miles per gallon indicator.
Patent GB-479449-A (GB)
Title: An improved apparatus for the treatment of ores by amalgamation
IPC: C22B11/10
Filed: 1936-08-05
Abstract: 479,449. Concentrating ores by amalgamation. ANGLO-FRENCH SECURITIES CORPORATION, Ltd., and MOLLA, M. Aug. 5, 1936, No. 21608. Convention date, Aug. 23, 1935. [Class 82 (ii)] Amalgamatable metals are recovered from ores containing them by feeding the ore, either dry or in the presence of water, on to the surface of a mercury bath through which a thin layer of the pulverized ore is carried by a movable body, e.g. a rotatable drum or an endless belt, having an amalgamated surface which moves into and out of the mercury. A scraper is provided to remove any surplus amalgam which is deposited on the surface of the movable body. In the form shown the mercury is placed in the rough 13 in which revolves a hollow drum 10 having a coating of amalgamated copper. The ore is fed into a hopper 14 having an adjustable discharge gate 16 through which the ore passes to feeding means, e.g. a rotary distributer 17 or a worm, which controls the supply of ore to the trough 13. Amalgam is removed at the valve controlled outlet 27, and a mercury overflow 26 is provided. The tailings are removed from the mercury at the discharge end of the trough by means of a suction fan 23. Surplus amalgam on the drum 10 is removed by a scraper 21 which is preferably formed as a gutter sloping so as to discharge the amalgam to one side of the trough 13. The scraper may be adjustably mounted so that it can be moved into and out of its operative position. The trough, drum, &c. are enclosed by a cover 28.
Patent GB-1147335-A (GB)
Title: Circuit Board Interconnection.
Inventor: CAYZER JOHN ANTHONY
IPC: C08F4/16
Filed: 1965-05-21
Abstract: 1,147,335. Circuit assemblies. TEXAS INSTRUMENTS Ltd. 23 May, 1966 [21 May, 1965], No. 21610/65. Heading H1R. [Also in Division H2] In an arrangement for connecting a first circuit board 1 to a second circuit board 2, a plurality of contact pins 5 are secured to board 1 along one edge thereof, and are inserted in a series of holes 10 in board 2, wherein they contact pins 11B secured to board 2, mechanical and electrical connection between pins 5 and 11B being established by a wire-wrapped joint 12; alternatively the pins may be secured together by a weld 15, Fig. 3. Each pin 5 forms a bight, both free ends of which are bent to protrude through apertures 6 in board 1, and are bent again to form tabs 7 which are welded at 8 to printed wiring 9 on board 1. Pins 11B have a single bent portion which is welded to printed wiring 11A on the underside of board 2. The invention is described with reference to the connection of a plurality of parallel spaced first boards 1, each bearing electronic modules 3, to a single second board 2 (Fig. 1, not shown). Fig. 3 depicts a second board formed from two printed circuit boards 13, each carrying printed wiring 16 on both sides thereof, and the two circuit boards 13 being bonded together by a layer of epoxy resin filler 14. Connections between wiring on opposite sides of the same board, and between wiring on different boards, are made by lead-through conductors 18, 20 which pass through apertures in the board(s) and are welded at each end to the relevant wiring.
Patent GB-727004-A (GB)
Title: Improvements in or relating to circular looms for weaving hose
IPC: D03D3/00
Filed: 1953-08-05
Abstract: 727,004. Finishing fabrics in circular looms. CHRISTIANSEN, C., and RUSCH, G. O. K. Aug. 5, 1953, No. 21656/53. Class 142 (2). As a hosepipe fabric passes through the weaving ring 1, it is calendered by rollers 4 carried by a shaft 3, the pressure on the fabric being adjustable by screws 10 acting through springs 11. The shaft 3 rotates in the opposite direction to the weft inserters to counteract tendency of the weft to drag the warp threads from their straight position.
Patent GB-216848-A (GB)
Abstract: 216,848. Ges. f³r Linde's Eismaschinen Akt.-Ges. May 3, 1923, [Convention date]. Separating gaseous mixtures by liquefaction.- In the separation of constituents of gaseous mixtures by cooling with partial condensation, the deposition of solids is prevented by causing the condensation of other constituents in a liquid form which dissolve the solids. This may be effected by choice of suitable temperatures, pressures, and rates of flow when the liquid-forming constituents are present in sufficient quantity. If not, a further quantity of the liquid-forming constituents may be added either in gaseous or liquid form, and may be derived by fractionation from a portion of the gas previously treated. The gas may thus be caused to expand through a valve without choking by solids. Mixtures containing carbon dioxide in addition to hydrocarbons may be treated by this method, the carbon dioxide being soluble in methane, propane, or propylene. A proportion of the carbon dioxide may be first removed by solution in water under pressure. Reference has been directed by the Comptroller to Specifications 5395/09, 28933/10, and 195,598.
Patent GB-790439-A (GB)
Title: Improvements in the production of oxide cathode filaments
IPC: H01J9/04
Filed: 1955-07-27
Abstract: 790,439. Automatic resistance control systems. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. July 27, 1955 [July 27, 1954], No. 21718/55. Class 38 (4). [Also in Group XXXVI] Tungsten filaments for oxide cathodes are electrolytically polished before oxidation, the polishing current being varied with the resistance of a fixed length of filament issuing from the electrolytic bath, whereby the resistance per unit length of the filament is maintained at a desired value. A section 7 of the filament issuing from the bath 4, having the filament as anode, is connected between fixed contacts 5, 6 in a bridge network 8 comprising a fixed resistor 14 and a datum-setting resistor 13. The bridge is supplied from a D.C. source 9 and has its output applied in the grid circuit of a valve 10 having the bath 4 in its anode circuit with an H.T. supply 11, whereby deviations of the resistance of the section 7 from a desired value, set by the tapping on resistor 13, cause corrective variations in the polishing current so that the resistance of the filament is maintained at the desired value. A multi-stage amplifier may replace the single valve.
Patent GB-954837-A (GB)
Title: Improvements in or relating to the manufacture of anti-friction bearings
IPC: B21K1/04
Filed: 1960-06-21
Abstract: 954,837. Bearings. UNIVERSAL BEARING CORPORATION. June 21, 1960 [July 3, 1959; Jan 26, 1960], No. 21755/60. Addition to 880,013. Heading F2A. [Also in Division B3] In an improvement in the method of assembling a ball or roller bearing according to the parent Specification, the outer race 9 is contracted radially and the inner race is expanded. The pre-assembled bearing is located on a spindle 6 having a split upper end 11 which is expanded by an inner tapered pin 12 to grip the inner race 8. An outer die 17 with a tapered bore 22 is then moved downwardly over the outer race to contract it on to the rolling members 10. During this operation one or both races are rotated, preferably in opposite directions to burnish the grooves. Finally, the bearing is discharged through a side opening 23. In another embodiment, Fig. 2 (not shown), the spindle 6 is solid and locates both the inner and outer races. The inner race may be expanded simultaneously with or after contraction of the outer race.
Patent GB-906492-A (GB)
Title: A twist grip control for bowden cable transmission
IPC: B62M25/00
Filed: 1961-06-16
Abstract: 906,492. Pipe clamps. MUNZ, E. June 16, 1961 [July 13, 1960], No. 21805/61. Class 44. [Also in Group XXXI] Ends 15a and 15b of a pipe-clamp 15 encircling a cycle handlebar 11 protrude through a peripheral slot in skirt 12b of a handlebar twist grip (see Group XXXI) to locate the grip on the handlebar. The ends are secured by a screw 16 and one is cranked at 16c and adapted to support the sheath 17 of a Bowden cable 14.
Patent GB-1344769-A (GB)
Title: Synchronized quartz crystal watch
IPC: G04C11/08
Filed: 1972-05-10
Abstract: 1344769 Synchronizing electric watches TIMEX CORP 10 May 1972 [18 May 1971] 21962/72 Heading G3T A periodically and automatically corrected watch includes a high frequency crystal oscillator 11 and a low frequency oscillator, e.g. a balance wheel 10, which is coupled to time display means conventionally and is regulated to normally run fast but is periodically stopped and synchronized with crystal oscillator signals. Signals produced by the balance wheel oscillations at (3 + E) H 2 , where # is the error, are fed to a counter 13 which counts up to N pulses at which count it changes the state of a flip-flop 14. A solenoid 16 is thereby activated and stops the balance wheel by moving a member 17 into engagement with a finger 12 on the balance wheel. The high-frequency oscillator signals are divided down to 3H z  and fed to a counter 19. When counter 19 has counted N pulses the solenoid is deactivated which releases the balance wheel, thus restarting the watch, and resets both the counters. In a second embodiment, Fig. 2 not shown, the counters are omitted and the flip-flop output is integrated. When a certain integration voltage is reached, a Schmitt trigger energizes the solenoid to stop the watch for an interval (e.g. less than 1/6 second) determined by a monostable circuit.