baber/WOPTO huggingface dataset:
Patent GB-399068-A (GB)
Title: Improvements in or relating to thermionic amplifying arrangements suitable for use in radio receivers
IPC: H03G5/26
Filed: 1933-01-26
Abstract: 399,068. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Beers, G. L. ; 119, Summerfield Avenue, Collingswood, New Jersey, U.S.A.) Jan. 26, 1933, No. 2571. Convention date; Jan. 26, 1932. [Class 40 (v).] In a receiver provided with automatic volume control, the damping of the tuned circuits is also automatically varied with changes in signal strength, so as to combine good reproduction of the local station with high selectivity for distant working. A manually-operated control may also be provided. As shown in Fig. 1, the amplified signal is fed back from the input circuit of the second detector 9 of a superheterodyne circuit through a branch-line and condenser 53 to the grid of an auxiliary volume-control valve 41. An increase in signal strength lessens the initial negative bias on the grid of that valve and reduces the " gain " of the I.F. stages 1, 3, 5, 7 by increasing the potential drop across the output resistance 55 which supplies grid bias to the I.F. valves from a common potentiometer line 31. Two other auxiliary valves 59, 61 serve to vary the selectivity response. The space-current path of the valve 59 is in shunt with the tuned output circuit 23 of the I.F. valve 3. A resistance 71 in the input circuit of the valve 59 is connected in the output of the first I.F. stage 1, and during reception of weak signals applies a strong negative grid bias, so that the platefilament impedance of the valve 59 is large. An increase of signal strength, on the other hand, lowers the valve impedance so that it damps the coupling circuit 23 and widens the frequency-response curve, at the same time reducing selectivity. A second control valve 61 similarly shunts the primary winding of the transformer 27 coupling the I.F. valves 5, 7. The grid of the valve 61 is biased from the plate circuit of the A.V.C. valve 41, so that as signal strength increases the coupling between the valves 5, 7 is progressively damped. The resistance 71 of the valve 59 may be replaced bv a manual control. In an alternative arrangement, Fig. 2, control valves 89, 91, 93 are shunted across the output circuits of the I.F. valves 76, 77, 79 and operate as before to reduce the "gain" or energy-transfer between these stages, and at the same time to broaden the frequency response. Amplified signals are fed back through a condenser 105 to the grid of a "master" control valve 95, the corresponding change in the potential drop across the output resistance 99 being transferred through a phase-reversing valve. 107 to render the grids of valves 89, 91, 93 progressively more positive with increasing signal-strength.
Patent GB-656250-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines and reciprocating refrigerators operating according to the reversed hot-gas engine principle
IPC: F25B9/00
Filed: 1948-01-28
Abstract: 656,250. Hot-gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 28,1948, No. 2571. Convention date, Jan. 31,1947. [Class7(i)] [Also in Group XIII] A displacer 22 is actuated by a member 40 which passes through a working piston 21 and a resilient element 41, e.g., a plate spring, connects the member 40 to the underside of the displacer. The member is operated by levers 37, 38 from the connecting rod of the working piston. The Specification as open to inspection under Sect. 91 described an engine Fig. 1 (Cancelled) in which plate springs 16, 19 are used to connect pistons 3, 4 respectively to levers 14, 17 through which the pistons are operated from a crank shaft 10. This subject-matter does not appear in the Specification as accepted.
Patent GB-122924-A (GB)
Title: Improvements in Force Pumps for Oil and other Liquids.
Inventor: VENABLES GEORGE EDWIN
IPC: F02M59/00
Filed: 1918-02-13
Abstract: 122,924. Venables, G. E., and Blackmore, J. S. Feb. 13, 1918. Valve-gear ; valves, arrangement of; suction pipes.-A pump for oil &c. comprises a fixed barrel a with suction and delivery ports b, c at different levels, an inner reciprocating cylinder d closed at one end and provided with suction and delivery ports d<1>, d<2> in the same plane and adapted to register alternately with the ports b, c, and a plunger g reciprocating in the cylinder d. A needle valve l operated by the arm m is provided on the indet port b. In the form shown in Fig. 5, the cylinder d oscillates, and has a suction port d<1> in the plane of the port band a delivery port d<2> in the plane of the port c. The cylinder d is oscillated by the plunger eccentric f through a lever o pivoted at o<1> and connected to an arm p on the head of the cylinder.
Patent GB-1490421-A (GB)
Title: Cable connector
IPC: H01R9/05
Filed: 1975-01-21
Abstract: 1490421 Coaxial connectors STANDARD TELEPHONES & CABLES Ltd 21 Jan 1975 2582/75 Addition to 1247750 Heading H2E The coaxial connector is substantially similar to that of the parent case but the pin 14 is hollow at one end 18 for receiving the central conductor of coaxial cable 1 and has a shoulder 17 for engaging a recess formed between abutting insulating discs 15, 16, which discs receive the pin in a bore and insulate the pin from connector body 7. As described the insulating discs are of PTFE and have a plurality of bores (Fig. 5, not shown) surrounding that receiving the pin in order to reduce the dielectric coefficient.
Patent GB-1343786-A (GB)
Title: Acenaphthyloxazole derivatives
IPC: C07D317/72
Filed: 1971-01-19
Abstract: 1343786 Acenaphthyl oxazoles E R SQUIBB & SONS Inc 19 Jan 1971 [2 Feb 1970] 2606/71 Heading C2C Novel compounds I shown in the formula below, in which X is H, halo, NO 2 , 1-4 C alkoxy, or 1-4 C haloalkoxy; and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are H or 1-4 C alkyl are prepared by reaction of compounds II with ethylene glycol to give compounds III and reacting compounds III as indicated in the following reaction sequence Acenaphthol[1,2 - b]bis[1,4]dioxane and acenaphthoquinone bis-ethylene ketal are byproducts in the preparation of acenaphthoquinone mono-ethylene ketal from the free quinone. Pharmaceutical compositions useful as antiinflammatory agents comprise a compound I together with a suitable diluent or carrier and are administered orally.
Patent GB-1162072-A (GB)
Title: Improved Collapsible Tube Squeezer
Inventor: JNR CORNELIUS BUSHNELL WATSON
IPC: B65D35/28
Filed: 1967-01-18
Abstract: 1,162,072. Dispensing from collapsible tubes. C. B. WATSON. 18 Jan., 1967, No. 2619/67. Heading B8D. A dispenser for a collapsible tube has an inner case 12 with an open side and an outer case 18 slidable over the case 12, an operating handle 90 being mounted on the case 12 for raising a squeezer assembly, by means of a pawl and ratchet mechanism which winds a cord 68, fixed at one end to the assembly, about a shaft 40. The assembly, which includes a block 56 and pivoted pressure member 54 is guided in a longitudinal slot in the ease 12 and engages a pair of strips 86, 87 fixed at their lower ends to the bottom wall 38 of the case. The strip 86, of resilient material, may be faced with emery cloth on its inner face in order to grip the tube; the strip 87 may be of polypropylene to avoid friction with the tube. A stop pawl 100 is sprung into active position as the outer case 18 is applied; a driving pawl 106 may be held in inactive position by pressing a pivoted arm 108. A basal aperture 50 in the case 18 enables the user to insert a finger to separate the inner and outer cases; an aperture 52, also for finger insertion, enables the tube to be completely emptied.
Patent GB-554277-A (GB)
Title: Improvements in automatic regulation of current in electroplating bath
IPC: C25D21/12
Filed: 1942-02-27
Abstract: 554,277. Automatic control systems for electrolytic apparatus. TRIGGS, W. W. (Carnegie- Illinois Steel Corporation). Feb. 27, 1942, No. 2625. [Class 38 (iv)] Current is maintained constant in an electroplating or electrolytic apparatus by a reversible electric motor 5 adjusting the field strength of the current generator 2 in accordance with any deviation from the desired current. A relay 8 controlling the motor 5 responds to the difference between the potential across the shunt 9 in the circuit supplying the bath and the potential drop in a resistance 15 carrying a predetermined current. The resistance may be a potentiometer 15 the adjustment of the moving contact of which effects corresponding adjustment of the bath current.
Patent GB-591823-A (GB)
Title: Method and machine for generating splines and analogous formations
IPC: B23D3/02
Filed: 1945-02-02
Abstract: 591,823. Shaping curved surfaces. FELLOWS GEAR SHAPER CO. Feb. 2, 1945, No. 2709. Convention date, Feb. 18, 1944. [Class 83 (iii)] In a method of, and machine for, generating splines having flat sides and sharp corners on shafts by planing, the work is moved in an orbital path about an axis remote from its own axis past a toothed cutter which is rotated on its axis in synchronism with the orbital rotation of the work, rapid reciprocations parallel to the work axis being imparted to the cutter relatively to the work. A number of work pieces W, Figs. 2 and 7, which are to have splines produced on a portion W<1 >thereof located adjacent one or more shoulders S, S<1> are mounted on a turret 14 rotatable with a central shaft 12 which is driven continuously or intermittently by worm and toothed gearing. Each work piece is mounted between centres 15, 16, whereof 15 is secured to the turret and 16 is carried by a plate 23 attached to a stem 18 pressed by a spring 19 to engage an adjustable stop 25 with the turret. A dog 26 on the plate engages a slot in the turret to align centre 16 with centre 15, and rotation of the work on its axis is prevented by a bolt 29 opposite each work piece pressed by a spring 30 to engage one of a series of notches 38 formed on the work or on a disc attached thereto. Each bolt may be withdrawn in turn by a bevelled rod 43 engaging a recess 45 to allow indexing of the work. The cutter C consists of a thin disc carried by a spindle D which is rotated and reciprocated by mechanism as described in Specification 375,876, and has teeth t spaced so that one will come into action as each work piece reaches a point k in its orbital path. The tooth then generates a spline on the work as the turret rotates about its axis E until the work passes out of its reach, whereupon the rod 43 rides up on a wedge 50 fixed to the machine frame to raise the rod against its spring 47 and withdraw the bolt 28. Just prior to reaching this position a recess 38 on the work has engaged an indexing finger 35 pivoted at 36 on a bracket 37 attached to the machine frame and rocked the finger against its spring 39 so that on release by the bolt 28 the spring 39 will return the finger into contact with a stop 42 to index the work partially. Indexing is completed as the turret rotates to carry the work beyond the finger 35 whereupon the rod 43 rides off the wedge 50 to allow the bolt 28 to engage the next notch 38. The work pieces therefore present a fresh part to the cutter C on each rotation of the turret and the latter continues to rotate until the required number of splines has been cut in each work piece. The cutter C may be located within the periphery of the turret 14, the work holders 23 then being arranged radially outwardly from the work pieces.
Patent GB-585022-A (GB)
Title: Improvements relating to the production of suspended ceilings
IPC: E04B1/41
Filed: 1945-02-02
Abstract: 585,022. Ceilings. TRUSSED CONCRETE STEEL CO., Ltd., and GREEN, D. H. Feb. 2, 1945, No. 2727. [Class 20 (iv)] Ceilings are suspended from roofs or floors composed of beams 1 with intervening spaces 2, which are wider at the top than at the bottom, by means of hangers having resilient or deformable retaining heads which are engaged in the slots. The hanger 3<1>, Fig. 4, is formed from a steel strip, the upper end of which, after passing it up into the space 2, is coiled by a slotted key until an abutment formed by a pin 8 passed through one of a series of holes in the strip engages the underside of the beams. Fig. 2 shows a hanger with a double bend at the upper end forming a head 4, which may be opened to engage at the desired height in the tapering space 2. Rods 6 carrying the ceiling may be passed through holes in the hangers, or wired to them, or inserted into them through slots 9 which are then closed by binding up the lugs 10, Fig. 6.
Patent GB-160339-A (GB)
Title: Improvements in apparatus for stump-pulling
IPC: A01G23/06
Filed: 1920-01-29
Abstract: 160,339. Thoresen, S. Jan. 29, 1920. Jib cranes.-In an apparatus for extracting tree stumps, a jib 18 pivotally mounted on a tractor is supported during the pulling operation by a pair of legs or rods 32 having means for engaging the ground and for pivotally connecting them to the jib head 26. When disengaged from the ground the rods may be used for slueing the jib with the load hanging therefrom. The rods are swung up on to the tractor when not in use. The pulley tackle 23 is hoisted by a winding-drum 10 driven from the shaft 4 of the fly-wheel.
Patent GB-510330-A (GB)
Title: Improvements in coated abrasive articles
IPC: B24D11/00
Filed: 1938-01-28
Abstract: 510,330. Abrasive coated sheets. BEHRMANNING CORPORATION. Jan. 28, 1938, No. 2841. Convention date, Feb 6, 1937. [Class 60] [Also in Group VIII] A coated abrasive article comprises a laminated backing in which the plies are united and to which the abrasive is bonded by a synthetic resinous adhesive. The plies of the backing may comprise cloth, paper or vulcanized fibre. The synthetic resin may be phenol-aldehyde or phenol-hexamethylene tetramine, ureaformaldehyde or alkyd resin. Vulcanized fibre or paper from a roll 10 is coated with synthetic resin 13 by rolls 18 and is combined with cloth from a roll 11 at 21. The compound web is further compressed by passing over drying rolls 22. The cloth is preferably drill from which the starch has been removed by a diastase treatment, and which has been dried so that its moisture content is below the equilibrium point, e.g., at 55‹C. To avoid wrinkling, the cloth is fed to roll 21 by independently driven means 20. Suitable synthetic resins for adhering the plies and the abrasive are described in Specification 510,328. The laminating adhesive is preferably only partially cured before application of the abrasive, for example by heating at 100‹F. for 2 hours, 110‹F. for 2 hours, 120‹F. for 5 hours and 130‹F. for 3 hours. The abrasive may be applied using the electrical orientation methods described in Specifications 378,014, 379,379, and 398,907. The application to the base of the adhesive and abrasive is described in Specification 510,328. The abrasive coated sheet may be rendered flexible by mechanical breaking of the adhesive. Specifications '510,329, 510,331, and 510,332 also are referred to.
Patent GB-928127-A (GB)
Title: Method of consolidating an unconsolidated or substantially unconsolidated mass
Inventor: HAVENAAR IZAAK
IPC: C09K8/50
Filed: 1962-01-25
Abstract: 928,127. Consolidating unconsolidated masses; boreholes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Jan. 25, 1962, No. 2883/62. Classes 68 (1) and 85. An unconsolidated mass such as the sides of an oil, gas or water well, foundation supports or sides of a mine, is consolidated, and made impermeable if desired, by injecting a solution of 3-50 vol. per cent of an epoxy compound with a cold curing agent in a solvent, preferably containing at least 50% aromatic hydrocarbons. Suitable solvents contain benzene or its derivatives or kerosine, spindle oil or gas oil extracts. The epoxy compound used has a molecular weight of 350-400 and contains an average of 1.85 epoxy groups per molecule. The curing agent is preferably an amine such as hexylenediamine, N - amino - ethyl - piperazine or bis- (3 - methyl - 4 - aminocyclohexyl) methane or the like, and the solution may also contain a promoter such as an aromatic alcohol or a tertiary amine. If the mass being consolidated contains connate water this is preferably removed by flushing with a water-removing fluid which may contain a surfactant such as a compound of the general formula R-NH-(CH 2 ) 3 - NH 2 , where R is an alkyl group derived from coconut oil, soya oil or tallow.
Patent GB-477494-A (GB)
Title: Gas purifying material
IPC: C10K1/20
Filed: 1937-02-01
Abstract: 477,494. Gas - purifying materials. COMPAGNIE DES PRODUITS CHIMIQUES ET CHARBONS ACTIFS E. URBAIN. Feb. 1, 1937, No. 2958. Convention date, Aug. 29, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 31, 1937.] [Class 55 (ii)] Gas-purifying material consists of bodies formed by the deposition of iron oxide on lumps of natural or artificial material having a sponge-like structure, that is with interconnected cavities visible to the naked eye. Lumps of foam lava, or gas-permeable hydraulic cement poor in lime, are saturated with a solution of ferrous sulphate or ferric chloride, and then warmed to deposit iron oxide. Spent lumps may be treated for recovery of sulphur and re-charged with iron oxide.
Patent GB-212370-A (GB)
Title: An improved device or apparatus for fastening plates such as those employed in a gasometer, boiler, ship and other constructions and which is applicable for uniting various objects
IPC: F16B13/08
Filed: 1923-02-01
Abstract: 212,370. Tonks, G. H. Feb. 1, 1923. Bolts.-A bolt for use in ship and boiler work &c. and generally in places where access is only possible to one side of the work, comprises a tubular member 1 threaded externally and internally, to which arms 5, 6 are pivoted at 7 and pressed outwardly by a spring 8. In operation, the arms 5, 6 are closed together and passed through a hole in the work when they are automatically opened by the action of the spring. An internal grab-screw 9 is then screwed down on to the arms to hold them extended backwardly across the hole. A nut 11 and a dome-shaped lock-nut 12 are then screwed on the external thread of the member 1 against the work to hold the device in position. The end 15 of the member 1 may be squared so that it can be held by a spanner &c. when the screw 9 is being screwed home. The inner ends of the arms 5, 6 may be extended sufficiently to bridge the hole in the work, in which case the grub screw may be omitted. Specification 172,223 is referred to.
Patent GB-409102-A (GB)
Title: Improvements relating to devices for indicating and measuring the level of liquids
IPC: G01F23/24
Filed: 1933-01-31
Abstract: 409,102. Electromagnetic switches. EVERSHED & VIGNOLES, Ltd., NEEDHAM, J. C., and MARCHMENT, W. T., Acton Lane Works, Chiswick, London. Jan. 31, 1933, Nos. 3010/33 and 349/34. [Class 38 (v).] A relay, used in a water level indicator, has two field structures 39, 40, each of which has a pair of inwardly projecting poles, the poles of the two structures being arranged at right angles. Both fields are fed from alternating current and the coil 33 of a plumb-bob 5 is connected in series with one pair of coils. Two armatures 41, 42, rigidly connected together, are provided, the armatures both being laminated whilst the plates of the upper armature 41 are splayed out to give a steady torque over a wide angle.
Patent GB-132711-A (GB)
Title: A New or Improved Liquid Seal Valve or Trap for Domestic Sinks, Drain Pipes and the like.
Inventor: SMITH CHARLES ALBERT
IPC: E03C1/29
Filed: 1919-02-07
Abstract: 132,711. Smith, C. A. Feb. 7, 1919. Traps.-A dish 4 is suspended from a grating 2 and contains water into which dips a funnel 3 supported by a socket at the top of a waste-pipe 5. The grating and funnel may be made in one piece.
Patent GB-1514331-A (GB)
Title: Device for attachment to a frying pan cooking pot or like cooking utensil
IPC: A47J36/22
Filed: 1975-01-23
Abstract: 1514331 Device for a cooking utensil S SHINMAN 15 Jan 1976 [23 Jan 1975] 3027/75 Heading A4A A device for attachment to a frying pan, cooking pot etc. comprises an open-work metal base member 2 which is substantially flat and of circular segment shape, a flange 6 upstanding from the curved periphery of the base member, and means 7 near the periphery for supporting the device on the rim of the frying pan etc. As shown, the device comprises wires 3, 4, 5 soldered or welded together so that the device is semi-circular in shape with a handle 11 which may be pivoted at 12 to fold into the device. Portions 7 bent outwardly and downwardly provide support for the device either in the frying pan or in a second embodiment Fig. 2, (not shown) so that the device locates above the frying pan. The device may be arranged so that it slopes relative to the base of the pan and may be of an open mesh wire gauze or net structure.
Patent GB-505935-A (GB)
Title: Improvements in or relating to connecting leads for electrical apparatus
IPC: H01C1/146
Filed: 1938-02-01
Abstract: 505,935. Direct connections between conductors. CHIFFEY, E. Feb. 1, 1938, No.. 3079. [Class 38 (i)] [Also in Group XXII] A method of making a connecting lead, more particularly for condensers and resistances for wireless apparatus, comprises forming a head or enlarged portion 2, 3 on the end of a length of wire 1 and then flattening the head to form a connecting lug 4. The flattened ends may be annealed if brittle and the leads are preferably tin-plated to prevent corrosion and facilitate soldering.
Patent GB-104383-A (GB)
Title: Improvements in and relating to Self-propelled Vehicles.
Inventor: WATNEY GORDON
IPC: B60K17/34
Filed: 1916-03-01
Abstract: 104,383. Watney, G. March 1, 1916. Winding and paying-out apparatus on motor vehicles. - In a motor vehicle, the countershaft of the gear-box is provided with a bevel-pinion meshing with two crownwheels s, which may be adapted to gear with a bevel pinion on a vertical shaft u, to operate hauling or towing gear, a crank, or other auxiliary apparatus.
Patent GB-276884-A (GB)
Title: Improvements in paper-making machines
IPC: D21F3/02
Filed: 1927-02-04
Abstract: 276,884. Horsburgh, J. K. Feb 4, 1927. Wet presses and couch rolls.-The couch roll 1, which may be solid or perforated, is provided with a felt band 3 adapted to absorb moisture from the wet paper web 20 before the web leaves the wire. Press rolls 12, 13, or suction box 11, may be used to absorb moisture from the felt. The roll itself may be jacketed also.
Patent GB-1341142-A (GB)
Title: Amusement device
IPC: A63F3/00
Filed: 1972-01-24
Abstract: 1341142 Bells M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 24 Jan 1972 [8 Feb 1971] 3250/72 Heading G5J [Also in Divisions A6 and H1] A bell 20 in a board game apparatus (see Division A6) is struck by a member 30 at the end of a crank 22 rotated by a battery-powered electric motor 24.
Patent GB-739090-A (GB)
Title: Improvements in or relating to filled thermoplastic containers
IPC: B65D75/52
Filed: 1953-02-06
Abstract: 739,090. Packaging. UNILEVER, Ltd. Feb. 6, 1953 [Feb. 13, 1952], No. 3369/53. Class 94 (1). [Also in 'Group XVIII] A thermoplastic container 1 filled with liquid or paste and sealed at one or both ends by heat seals, such as 2 and 3, has at least one of the seals provided with characters or designs 4 in high relief, which characters or designs are filled with the liquid or paste and out of communication with the contents of the container. The containers may be formed by sub-dividing a tube filled with the liquid or paste by means of sealing jaws formed with the characters or designs in bas-relief.