baber/WOPTO huggingface dataset:
Patent GB-920217-A (GB)
Title: Improvements in or relating to the salvaging of sunken objects
Inventor: FRICKE ERWIN
IPC: B63C7/12
Filed: 1959-09-15
Abstract: 920,217. Raising sunken objects. A. LOGHRER. Sept. 15, 1959, No. 31390/59. Class 68 (2). [Also in Group XXIX] Apparatus for raising an object submerged in water comprises an inflatable buoyancy body having a gas inlet to which a filling pipe may be coupled, and a valve in the inlet comprising a non-return valve normally preventing leakage of gas from the body when the pipe is disconnected, and a valve for reducing the pressure of the gas in the body in response to the adjacent water pressure as the object is raised. The valve is connected at one end to the body 8 and has the other end 11 adapted to be connected to a compressed air filling pipe. The non- return valve is carried by an annular member 13 and comprises a disc 15 urged by a spring 16 in the direction of the arrow B. The reducing valve comprises the member 13 biased by a spring 14 in the direction of the arrow A and controlling holes 19. An inlet and valve may be common to several bodies.
Patent GB-1111372-A (GB)
Title: Improvements in or relating to ploughs
IPC: A01B3/426
Filed: 1965-07-23
Abstract: A reversible plough 6 is provided with a beam 6 which is rotatable in a member 7 attached to the three point linkage 14, 19 of a tractor and a rocker arm 23 is attached to the upper link 19 for rotating the plough beam by means of a rod 37, the rocker arm being held by means of a spring-urged cam 51 when the plough is working, the weight of the plough when it is raised causing the part 47 of the rocker arm to be disengaged to rotate the plough beam.  In a modification the cam 51 is replaced by a pair of links connected to the part 47. Alternatively the pin 48 of the part 47 moves in a slot provided in a member which replaces the cam 51.
Patent GB-1473568-A (GB)
Title: Mos control circuit
IPC: H03K19/017
Filed: 1974-07-16
Abstract: 1473568 Transistor switching circuits INTEL CORP 16 July 1974 [18 July 1973] 31471/74 Heading H3T A switching circuit comprises an output MOS device 23 coupled to a source of potential V DD  and first and second circuits coupled to the gate of the device 23 to provide control signals, the second of which has a magnitude greater than the source of potential, whereby the output signal at 41 may have a magnitude substantially equal to said source of potential. If initially input 40 is at a high level, transistors 12, 13 of a first bootstrap circuit are conducting holding point D at approximately earth potential and capacitor 32 charges to V DD  less the threshold voltage of transistor 14. When the level at input 40 changes to a low level, transistors 13, 14 are cut off and the charge across capacitor 32 is connected in series with the voltage at point D which is now at V DD . The voltage at the gate of transistor 16 is therefore approximately 2V DD  and point A can rise to V DD  (transistor 17 being cut off). This turns on transistor 23 allowing the potential at output 41 to rise. This rise in potential is fed back to 14, 15 which form a second bootstrap circuit and thus similarly cause to point A to rise after a delay above V DD  to a potential determined by the potential at point C plus the potential across capacitor 33, so that the potential at output 41 can rise to the full supply voltage V DD .
Patent GB-520846-A (GB)
Title: High frequency electric communication cables
IPC: H01B11/18
Filed: 1938-11-01
Abstract: 520,846. Cables. KABUSHIKI KAISHA SUMITOMO DENSEN SEIZOSHO. Nov. 1, 1938, No. 31602. Convention date, Nov. 2, 1937. [Class 36] A cable of the air-space insulation type comprises one or more inner conductors separated and insulated from an .outer conductor or protective sheath by a series of hollow cylindrical spacers, each spacer being built up of a plurality segments assembled around the inner conductor or conductors and having a single wall, which is perforated for the passage .of the inner conductor or conductors, extending across the cylinder. Additional perforations may be provided in the wall of each spacer to facilitate drying of the cable and to minimize dielectric losses. Fig. 1 shows coaxial conductors 1, 11 having spacers, such as 2, 3, each consisting of two semi-cylindrical insulating shells 4, 5 formed at one end with a semicircular wall portion 6 which is provided with a recess 10 to accommodate the conductor 1. The abutting faces of the wall portions 6 of each spacer may be roughened to minimize the tendency of the spacers to slide relatively to the conductor. The surfaces of the recesses' 10 may also be roughened. Fig. 3 shows a modified construction wherein the wall portion 9 is provided centrally of each spacer segment 8 and is provided with recesses 14, 15 to receive two conductors. Specification 502,932 is referred to.
Patent GB-1480301-A (GB)
Title: Amplifier insensitive to the polarity of the supply voltage
IPC: H03F1/30
Filed: 1975-07-29
Abstract: 1480301 Transistor amplifiers INTERNATIONAL STANDARD ELECTRIC CORP 29 July 1975 [5 Aug 1974] 31667/75 Heading H3T An amplifier, e.g. for a telephone microphone M, which is insensitive to the polarity of the D.C. supply, comprises first and second multistage amplifiers connected generally in parallel, corresponding transistors in each amplifier being complementary to each other, the amplifier which operates depending on the supply polarity, and biasing means being provided responsive to the operation of one amplifier to disable the other. Transistors SC1, SC3, SC5 form the first amplifier and SC2, SC4, SC6 the second. When SC1 &c. is operating SC2 &c. is biased off by the collector-base leakage current of SC6, which holds SC4 off. A transistor SC7 provides regulating means for operation over a range of supply currents, the collector current of SC7 increasing if the supply current through R17 increases because the base-emitter voltage of SC7 depends on the voltage between the points E and B. With low currents through R11, R14, diode D3 does not conduct, but with sufficient current D3 clamps the voltage across R14, and the voltage across R11 controls SC7. Conversely, when SC2 &c. is operating SC3 is biased off by the leakage current of SC5, and SC8 with R12, R15 and D4 regulate the supply current. Diodes D1, D2 temperature compens sate SC1, SC2 respectively, and mirror across the microphone M the voltage drops across R7, R8. Positive feedback to shape the frequency response is provided by C4, R16.
Patent GB-208345-A (GB)
Title: Improvements in and relating to methods of and means for impregnating coils
IPC: H02K15/12
Filed: 1922-11-20
Abstract: 208,345. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 20, 1922. Insulation.-Coils mounted on a magnet frame are impregnated by applying enclosing members to the sides of the frame so as to form a chamber for the coils and then filling the chamber with the impregnating material under pressure. The enclosing members 16, 17 are secured on the frame 11 by the clamping-jaws 19, 20 of a press and the impregnating varnish is forced into the chamber 18 by a pump 21. A core member 24 is provided in the chamber to decrease the volume of insulating varnish required to fill the chamber.
Patent GB-1162415-A (GB)
Title: Sliding Door Operating Mechanism
Inventor: OLANDER ROLAND JOHN
IPC: E06B3/46
Filed: 1967-07-11
Abstract: 1,162,415. Pressure resisting doors. W. H. MINER Inc. 11 July, 1967, No. 31863/67. Heading F2P. [Also in Division E2] The invention is for use with a wall 10 having an opening 12 and a door 14 movable into and out of the opening and then longitudinally alongside the wall, and comprises (see Figs. 1 to 5) the combination of horizontal guide means 16, 18 mounted above and below the opening, vertically extending operating means comprising a hollow shaft 20 mounted on the door and rotatable about a vertical axis, handle means 78 for rotating said shaft, upper and lower throwout arm members 26, 28, upper carriage means (pin 32, roller 34) and lower carriage means (pin 32, carriage 38, roller 40) engaging said guide means for lengthwise movement therealong and pivotally mounting the one end of said throwout arm members, shaft means 24 extending coaxially through said hollow shaft and fixedly secured at its opposite ends to the other ends of said throw-out arm members to support the door while accommodating relative movement between the door and said throw-out members as the door is moved outwardly, upper and lower keeper means 46, 48 mounted on the wall, upper and lower keeper engaging means 42, 44 fixed to said hollow shaft and engageable with said keeper means for maintaining the door within the opening, and auxiliary latch means for locking the door to one of said throw-out arm members comprising a vertical channel 60 in the throw-out arm member and latch means comprised of a vertically movable latch member 70 operatively connected to said hollow shaft by handle means 71, 72, 74) and movable into and out of locking engagement with said channel portion whereby to permit conjoint longitudinal movement of the door and said throw-out arm members along said guide means without relative movement therebetween whereby to uncover the door opening. Figs. 6 and 7 illustrate an alternative latch means wherein a latch member 100 normally rests on the face 52<SP>1</SP> of projection 50<SP>1</SP>, but drops into channel 60<SP>1</SP> when the shaft 20<SP>1</SP> is rotated. In this embodiment, the latch member 100 is not actuated by handle 71<SP>1</SP>.
Patent GB-318965-A (GB)
IPC: C10K1/02
Abstract: 318,965. Mateco Soc. pour la Construction et l'Exploitation du Materiel Colonial au Gaz Pauvre, Soc. Anon., (Assignees of Delvaux, M). Sept. 13, 1928, [Convention date]. Density separators.-Gases are cleaned from dust by passage in a circular path; the outer layers containing the dust are caused to expand, and after the separation of the dust are reunited with the inner layers at the discharge outlet. The apparatus may be used in association with pro. ducer gas plant and the air supplied to the plant may be pre-heated by the hot gas passing through the separator. The tube A, through which the dust-laden gases pass, is of decreasing crosssection and preferably of rectangular shape. The dust is thrown to the outer layers of gas in the tube; the clean inner layers leave the end of the tube and are caused by the surface B to pass to the outlet D. The dust-laden layers of gas enter the chamber E where they expand considerably and deposit the dust; they then pass through the outlet F and pipe G to the clean gas outlet D. The fan H may blow air to the gas plant through the pipe I; this air travels in the opposite direction to that of the gas in the tube A and is heated by its contact with the wall of the tube. Steam may be introduced into the air flow, and a steam generator J may be combined in the apparatus.
Patent GB-900802-A (GB)
Title: Method and apparatus for cleaning rigid material
IPC: C23G5/04
Filed: 1959-09-18
Abstract: 900,802. Degreasing apparatus. WACKER-CHEMIE G.m.b.H. Sept. 18, 1959 [Sept. 25, 1958], No. 31954/59. Class 82 (2). As shown, an apparatus for cleaning rigid articles by means of organic solvents comprises a cleaning vat 1 carrying fixed control heads 4 and 6 and rotatable control slides 5 and 7 which are connected by a shaft 8 and driven by system 8a. Rotatable tray 2, on which the articles to be cleaned are placed, is driven by drive 3. Control slide 7 is contained in compartment 15 which communicates with spray nozzles 17 by means of duct 16. initially, slides 5 and 7 are adjusted so that apertures 9 and 14 contained therein are out of register with apertures 10, 11 and 33, and 12 and 13 contained respectively in heads 4 and 6. To prevent escape of solvent vapour when lid 19 is opened to charge tray 2 with articles to be cleaned, fresh air is sucked into container 1 and passes through suction apertures 18, suction box 18a, duct 25, condenser 26, fan 27, air heater 28, and cock 29 to be vented at 32. After lid 19 is closed, slides 5 and 7 are rotated so that apertures 12 and 14, and 9 and 11 coincide. At this time, pump 22 is switched on and cleaning liquid from reservoir 24 is thereby passed by line 21, compartment 15 and duct 16 and sprayed on to the articles on tray 2 by means of nozzles 17 ; this liquid is at a temperature below its boiling point. Soiled solvent passes through apertures 9 and 11, and duct 31 to reservoir 24. On completion of the spraying, apertures 13 and 14 and 9 and 33 are made to coincide (as illustrated) and solvent vapour from evaporator 23 is blown at high speed on to the articles by way of duct 20. Condensed solvent is discharged through apertures 9 and 33, and duct 31 to reservoir 24. The apertures 9 and 10 are then brought into conjunction while apertures 11, 12, 13 and 33 are closed, and vat 1 is evacuated and the solvent saturated air passes through apertures 9 and 10, and also through suction box 18a, duct 25, condenser 26, fan 27, air heater 28, cock 29 and duct 30. The condensate from condenser 26 passes into reservoir 24 through lines 34 and 31. The cleaned material is removed by ensuring that all apertures are closed; on opening the lid 19, cock 29 is operated to close duct 30 and open duct 32 so that air is drawn through the system, as at the start. Evaporator 23 is kept primed with solvent which overflows from reservoir 24 into closed container 35 by means of pump 36. Solvent in reservoir 24 is heated by means of vapour which passes from evaporator 23, through pressure valve 41 and back to reservoir 24 by duct 38 ; vapour forming above reservoir 24 is prevented from escaping by condenser 40.
Patent GB-837736-A (GB)
Title: Electric street lighting fittings
Inventor: HARTIL PHILIP
IPC: F21S8/06
Filed: 1957-10-14
Abstract: 837,736. Street lighting fittings. REVO ELECTRIC CO. Ltd. Oct. 8, 1958 [Oct. 14, 1957], No. 31981/57. Class 75(4) A lighting fitting especially for street lamps and intended to be suspended from a catenary cable on an arm, comprises in combination a pair of end plates 3, a pair of transparent or translucent panes 9 extending between the end plates, a roof member 7 also extending longitudinally between the end plates and extending laterally beyond the panes 9, means e.g. spring clips 15a, carried by the end plates 3 for supporting one or more fluorescent tubular lamps beneath the roof member, a door 12 forming a closure for the underside of the fitting and a reflector 18 of inverted channel shape mounted on the inside of the door. The control gear 17 for the lamps may be mounted on the door underneath the reflector 18. The end plates 3 carry brackets 4 for the suspension of the fitting.
Patent GB-757352-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/22
Filed: 1953-11-18
Abstract: 757,352. Electric water heaters. GOLDSMITH, W. L. Nov. 18, 1954 [Nov. 18, 1953], No. 31989/53. Class 39(3). In Fig. 1 a copper tube 5 has one end adapted for connection to the flow pipe of a domestic hot water system and is fitted with an immersion heater 8. A furthercopper tube 4 is connected to the return pipe of the system and contains a thermostat 7, transverse conduits 6 connecting the tubes 4, 5 together. The unit is lagged at 9 and supported on wall brackets. The construction shown in Fig. 3 comprises a U-shaped tubular member formed of parallel limbs 13, 14 connected by a portion 16 in which is mounted a combined thermostat and immersion heater 15. Conduits 17 connect limb 13 and portion 16, the free ends of the limbs 13, 14 being connected to the flow and return pipes respectively of the hot water system.
Patent GB-839110-A (GB)
Title: "apparatus for pressing laminated safety glass"
Inventor: WILLIAMS CARL BENEZETTE
IPC: B32B17/10
Filed: 1958-10-08
Abstract: 839,110. Laminating; rollers. LIBBEYOWENS-FORD GLASS CO. Oct. 8, 1958, No. 32062/58. Classes 42 (2) and 140. Apparatus for prepressing laminated windshields and the like which comprise two matching curved glass sheets and an intermediate sheet of thermoplastic material comprises a pair of rollers 80, 100, Fig. 4, mounted in a cage 28 which is rocked about a horizontal axis 70, as the laminate 20 passes between the rollers, by gearing 214, 68, and a rack 218 carried by a block 219, the block being slidably moved by a hydraulic piston at 220, the speed of which is controlled at various points of the cycle by cam surfaces on the underside of the block to maintain the common plane of the rollers constantly at right-angles to that part of the surface of the laminate in contact with them. The laminates 20 are delivered from an oven to a conveyer 37, the distant end of which is adjustably set below the level of the rolling mechanism, and their leading edges are guided between the rollers by a vertically adjustable roller 56; after pressing, each laminate passes to a second conveyer 183 the inner end of which is counterbalanced to sink under the weight of the laminate and rise again as the laminate passes forward. From the conveyer 183 the laminate passes to a second oven and a second similar pressing apparatus. The conveyers 37, 183; and shafts which drive the rollers 80, 100, are driven by chains and sprockets from an electric motor 195. Electric and hydraulic switching and control gear permit the operation of the apparatus automatically or by operatives. The roller 80 comprises a series of pairs of resilient rollers 86, Fig. 9, mounted on bearings 85 in a yoke 82 and driven by chain and sprocket mechanism 89, 91, 92, from a common shaft 76. The roller 100 comprises pairs of individual rollers similar to the rollers 86 but without positive drive. As shown in Fig. 8, the yokes 82, and the corresponding yokes 101 of the rollers 100, are pivotally mounted in the cage 28, and each yoke 82 is connected with the complementary yoke 101 by linkwork 137, 138, 139, and screw adjustment devices 119, 116; the link work is also adjustable by a screw device in relation to the cage 28. These devices permit adjustment of the individual pairs of rollers constituting the rollers 80, 100 towards and away from one another, and together upwards and downwards in accordance with the lateral section of the laminates being pressed. A pivoted roller 175 on the exit side of the cage 28 is engaged by the emerging laminate and trips a switch to swing the cage back to receiving position at the end of the pressing operation.
Patent GB-741607-A (GB)
Title: Improvements in laboratory and like benches having piped services
IPC: B01L9/02
Filed: 1953-12-11
Abstract: A prefabricated laboratory bench is characterized by having no upstanding projections on the bench top.  All taps, electric points, nozzles, consumption and flow points are placed in sinks or recesses and constructed so that they can be raised above bench level when necessary.
Patent GB-774601-A (GB)
Title: Improvements in or relating to devices for cleaning sparking plugs and the like
IPC: B24C3/34
Filed: 1954-11-05
Abstract: 774,601. Abrasive blasting. BROOM & WADE, Ltd., ELWESS, E., and GITTINS, H. B. Nov. 3,1955 [Nov. 5, 1954]: No. 32119/54. Class 60 Apparatus for cleaning sparking plugs and the like comprises a pressed metal cylindrical casing 13 fitting into a circular recess. 12 in the upper surface of a cast hollow base 11 and held to the base by two studs 14. A screwed recess 15 receives the base 16 of a sand jet supporting a sand tube 17 provided with a nozzle 18 and apertures 19 to permit the entry of sand from the casing. An air tube 20 within the sand tube 17 communicates with a hollow space in the recess 15 connected by a passage 21 to a normally closed push button valve 35 controlling the admission of compressed air from supply pipe 23. A similar valve. 33 controls the admission of compressed air from supply pipe 23 to a passage 29 and air jet 26 for blowing away any sand adhering, to the plug. A central opening in the top of the casing, 13 receives a rubber plug 36 to hold a sparking plug; the rubber plug is retained by a metal capsule 38 having flanges 39, 40 with key-hole, slots 41, 42 engageable with the heads of retaining studs 43, 44 riveted to the casing top. An upstanding stud 45 on the capsule 38 acts as a hinge for a swinging shutter 46 urged by a spring 47 around the stud to close the hole in the rubber plug when the sparking plug is removed. Air escapes from the casing 13 through felt tubes 50 and exhaust openings 48 in the base 11. Specification 541,312 is referred to.
Patent GB-542574-A (GB)
Title: Improvements in or relating to a system of wrapping articles
IPC: B65B11/54
Filed: 1939-12-13
Abstract: 542,574. Packaging. LAUENSTEIN & CO., GES. Dec. 13, 1939, No. 32121. Convention date, Dec. 30, 1938. [Class 94 (i)] A method of wrapping an article such as a praline 1, Figs. 4 and 6, having at least one flat surface consists in wrapping a sheet of material around the article to form a tube, folding the ends of the tube over surfaces of the articles which are transverse to the flat surface, and then passing the wrapped article through a resilient smoothing-device. The pralines are supported in recesses 3 in a rotating table 2, and in the position shown in Fig. 4, they are lifted by a plunger 4 through an aperture 5 in a plate 6 over which a sheet 7 of wrapping-material has been placed. A praline and the wrapper moves between. arms 8, 9 which grip and retain them, and when the plunger recedes, folders 10, 11 slide beneath the grippers and fold the wrapper across the bottom of the praline to form a tube. At the next operating- station the edges of the wrapper are held in place by a vertically-moving plunger. The open ends of the tube are next closed by bifurcated folders 13, 14, Fig. 6, which mcve horizontally towards the praline, followed by similar folders that move vertically. Finally, the folds are swatted down on to the praline by passing it upwards through a resilient device such as a brush mould 22, Fig. 8, or rotating brushes.
Patent GB-229439-A (GB)
Title: Improvements relating to motor vehicle wind screens
IPC: B60J1/00
Filed: 1923-12-22
Abstract: 229,439. Roper, F. Dec. 22, 1923. Windscreens.-In a multi-panel windscreen for vehicles of the kind comprising not less than four front panels a, b, the supporting-means for the screen comprise fixed bars f arranged on the sides of the vehicle carrying slidable sleeves e which are pivotally connected either to the outer edges of the panels b or to the junctions of the panels b and the side-screens c, and pivoted bars i mounted on brackets j on the sides of the vehicle and carrying slidable sleeves h which are connected to the junctions of pairs of front panels a, b of the screen. The inner edges of the innermost panels c are adapted to be connected in the usual manner. Specifications 186,230 and 198,580 are referred to.