baber/WOPTO huggingface dataset:
Patent GB-1145360-A (GB)
Title: Peak voltage storage circuit
IPC: G01N30/86
Filed: 1966-11-29
Abstract: 1,145,360. Peak voltage storage circuit. INTERNATIONAL BUSINESS MACHINES CORP. Nov. 29, 1966 [Dec.13, 1965], No. 53267/66. Heading G1U. [Also in Division H3] A system for storing a peak voltage prior to passing it to a recorder at 16, e. g. at the end of a chromatographic examination of a blood sample, is arranged so that the potential on a storage capacitor C2 follows relatively slowly increasing voltages at the input 10, while a clamping circuit 14 operates to isolate the capacitor during relatively fast voltage changes in either direction, which correspond to noise spikes on the input, due e. g. to air bubbles in the blood. The storage capacitor C2 is charged from a supply +V in the circuit 14 until its potential is held to that of the input at 10 across diode D6. The input is also supplied to a differentiator and emitter follower stage 11, whose output is passed via voltage discriminating diodes 12 to a differential amplifier 13, the collectors of both transistors (T2) and (T3) of which are normally held at zero potential. If a signal passes the discriminator, thus showing that a spike occurred in the input, one or other of the collectors in the differential amplifier goes positive and a signal is passed via diodes (D3 or D4) to the base of a clamping transistor (T5) in the circuit 14. When this is switched on, its collector voltage falls to zero and C2 will not be charged. In the event of the input remaining excessively positive, a Zener diode (ZD) passes the input to the circuit 14 which operates as before. The output at 16 is gated to a recorder at the end of each sample time, after which the capacitor C2 is discharged by closing the contacts CB.
Patent GB-1396149-A (GB)
Title: Internal combustion engine with control of the carburetor idling system
IPC: F02M3/055
Filed: 1972-11-21
Abstract: 1396149 Spray carburetters; stop gear FORD MOTOR CO Ltd 21 Nov 1972 [3 Dec 1971] 53690/72 Headings F1B and F1K Running-on is prevented by admitting air into the carburetter idling mixture passage 40 to terminate fuel flow through the passage to the induction passage 14 downstream of the throttle valve 36. A spring-biased valve 62 controlling air inlet conduits 52, 54 opening to the passage 40 is operated by a diaphragm 72 subject on opposite sides to the vacuum in the passage 14 downstream of the valve 36 through a conduit 78 containing a flow restricting orifice 84 and a vacuum reservoir 82 and a portion of the conduit 78 and a conduit 86, respectively. The conduit 78 also subjects the diaphragm 94 of a valve 92 to vacuum, the valve opening the outlet 90 of a conduit 58a connected to the air cleaner 20 at over-running with a high vacuum downstream of the'valve 36. In operation, the valve 62 opens the conduits 52, 54 when the vacuum downstream of the valve 36 rises quickly as the result of falling engine speed due to switching-off of the engine, ignition or when the vacuum is high due to over-running and the valve 92 opens the outlet 90. In both cases the vacuum acting in the diaphragm chamber 68 becomes less than that in the diaphragm chamber 70 and the pressure difference across the diaphragm 70 opens the valve 62.
Patent GB-1246845-A (GB)
Title: A mowing machine
IPC: A01D34/63
Filed: 1968-11-13
Abstract: 1,246,845. Mower. LANDMASCHINENFABRIK ESSEN G.m.b.H. 13 Nov., 1968 [31 Jan., 1968], No. 53804/68. Heading A1F. A vehicle-mountable mower comprises rotatable cutting discs 6 whose operating areas overlap, mounted on forward projections 2 from a carrier beam 1 containing drive means for the cutters 6. Drive may be taken from a tractor, e.g. through cone belts, or hydraulic means, and a set of engaging vertically journalled drive gears 5 may transmit drive along the beam 1 to the cutting discs 6 and to a swath drum 16. The cutting discs 6 include centrifugal blades 9 held in circumferential slots (20), Figs. 5-7 (not shown), by pins 22 which are readily released against the action of a spring ring (29). The mower is suspended from a support frame 46 via a sub-frame 49. In the mowing position the beam 1 and a shoe 3 ride on the ground and a protective plate 67 overlies the cutters 6. Tension springs 54, 64 are taut and a hoisting cable 56 is loose. For raising the mower to a swath position to just clear lying crop the frame 46 is raised, the sub-frame 49 pivots downwardly at 48 until a stop 50 thereon contacts a crossbar 47, and the cable 56 becomes taut, raising the beam 1 by action on a lever 53 as the shoe 3 rises with the frame 49. To reach a transport position the frame 46 is lowered to the ground, releasing the tension in the spring 64, a supporting rocker arm 58 is turned manually 180‹ about its axis 59, effectively shortening the cable 56 in relation to the spring 64, and the frame 46 is raised until the shoe 3 and beam 1 clear the ground, whereupon the cutter bar is effectively balanced by the springs and can readily be turned to vertical.
Patent GB-1160274-A (GB)
Title: Improvements in or relating to Domestic Appliances
Inventor: CLARKE BURNETT HARRISON
IPC: B60B33/06
Filed: 1965-12-22
Abstract: 1,160,274. Washing machines. ENGLISH ELECTRIC CO. Ltd. 9 Dec., 1966 [22 Dec., 1965], No. 54375/65. Heading D1A. A washing machine rests, during operation, on two wheels 2A, 2B, and at least one foot 3A, 3B, a retractable wheel 4 being provided which lifts the machine off its foot or feet when it is to be moved. Wheels 2A, 2B may swivel and some or all of the wheels 2A, 2B and feet 3A, 3B may be adjustable in height e.g. support 3A. The shaft 7 of foot 6 slides in bushes 8, 9 in the base of the machine and an internal bracket 10 respectively. A spring 12 engages bracket 10 and a plate 11 secured on 'shaft 7 and clamping means 13 are provided.
Patent GB-1361018-A (GB)
Title: Process for the production of aliphatic carboxylic acid chlorides
IPC: C07C51/60
Filed: 1971-11-24
Abstract: 1361018 Aliphatic carboxylic acid chlorides BADISCHE ANILIN- & SODA-FABRIK AG 24 Nov 1971 [25 Nov 1970] 54533/71 Heading C2C Aliphatic carboxylic acid chlorides are prepared by reacting the corresponding acid with phosgene in the presence of an N,N-dialkyl carboxamide and less than 0À2 mole of the product per mole of starting carboxylic acid at temperatures above 90‹ C., in the liquid phase, and in the absence of additional organic solvent. Suitable starting materials are acetic, mono-, di- and trichloroacetic, C 2  to C 18  carboxylic, and α-nitropropionic acids. The products are used as starting materials for solvents, odorants, plasticizers, detergents, mordants and pesticides.
Patent GB-1245359-A (GB)
Title: Method and apparatus for making compressible infusion package
Inventor: IRMSCHER HANS O
IPC: B65B29/04
Filed: 1969-11-10
Abstract: 1,245,359. Making infusion packages. NATIONAL TEA PACKING CO. Inc. 10 Nov., 1969 [3 Dec., 1968], No. 54963/69. Heading B8C. An infusion package is formed by pre-creasing a flexible cover C to form a fold line 54, moving an infusion (e.g. tea) bag having a suspending string S against the fold line 54 to fold the cover C about the tea bag T, winding the suspending string S about the package, and detachably anchoring the free end of the suspending string S to the cover C. The suspending string S may be drawn into the cover C to form an anchoring slit 16. The tea bag T is carried to a station I by grippers G on an intermittently rotating wheel 28, and a continuous string 24 is stapled to the tea bag at this station I. The string 24 is then gripped by a tensioning mechanism 38 and severed by cutters 34 to form the suspending string S. A strip 42 of flexible material is fed to a station II by a wheel 46 having blades 48 which produce the fold line 54, and is severed to produce the cover C. A looper 22 passes through an aperture 12 in the cover, engages the suspending string S, and is retracted to draw the suspending string S from the tensioning mechanism 38, through the aperture 12, and into a second tensioning mechanism 56<SP>1</SP>. The wheel 28 then carries the tea bag T through to station II so that the leading edge of the bag T abuts the cover C and folds the same about the bag T. During movement of the bag T and the cover C to a station III, the suspending string S is transferred to a third tensioning mechanism 56<SP>2</SP>, and at the station III the bag T and the cover C are transferred to grippers G<SP>2</SP> on a second wheel 58 which rotates to cause the suspending strings to be wound around the cover C and to be transferred to a fourth tensioning mechanism 64, and to transfer the package to a station IV. At the station IV the string S is gripped by grippers 66, removed thereby from the tensioning mechanism 64, and drawn into the cover C to form the slit 16. The package is then released by the gripper G<SP>2</SP> and, at a station V, a finger tab 20 is attached to the free end of the string S. The wheel 28 comprises two plates 122, 124 each carrying gripper supports 126 by way of arms 136, 138, the arms 136 being connected to arms 148 having cam followers 150 which engage a cam 152 to effect raising and lowering of the gripper supports 126 from the circumference of the wheel 28. Each support 126 carries a fixed gripper member 130 and a movable gripper member 128 which carries a cam follower 132 acted on by a cam 134 to open and close the grippers. Each gripper G<SP>2</SP> carried by the wheel 28 comprises two movable members 166, 168 carrying leaf springs 170, 172 for greater grip, the members 166, 168 being actuated by a mechanism including a follower 178 and arms 194, 196. The tensioning mechanisms 38, 56<SP>1</SP>, 56<SP>2</SP>, 64 and the grippers 66 are described in detail.
Patent GB-1170290-A (GB)
Title: Lubricants
IPC: C10M173/02
Filed: 1966-12-09
Abstract: 1,170,290. Lubricating. UNION CARBIDE CORP. 9 Dec., 1966 [15 Dec., 1965], No. 55127/66. Heading B3B. [Also in Divisions C3 and C5] A metal working lubricant comprising an aqueous emulsion of a polyolefin having a molecular weight of 1500-25,000 (see Divisions C4-C5) is employed in the tapping of stainless steel (Example 5) and in a single point threading lathe operation (Example 6).
Patent GB-551421-A (GB)
Abstract: 551,421. Sintered alumina refractory substances. LODGE PLUGS, Ltd., HOPPS, B., and SMITHELLS, C. J. Nov. 13, 1941, No. 14642. [Class 22] A dense, strong, electrical insulator of corundum and mullite &c. for sparking plugs, furnace tubes &c. is made by sintering at a temperature of about 1500‹C. a mixture of 90 per cent. or more of aluminium oxide, sufficient alkali metal oxide to produce 1 to 10 per cent. of #-alumina in the final product, ¢ to 9 per cent. of silica, and up to 5 per cent. of metallic oxide such as calcium oxide or substances yielding metallic oxides on heating. An example discloses per cent. of sodium oxide and 2 per cent. of oxides of calcium, magnesium, iron, chromium, and minor impurities. A mixture given in the Provisional Specification includes a plastic natural aluminium silicate.
Patent GB-1452305-A (GB)
Title: Methods of forming semiconductor devices
IPC: H01L29/73
Filed: 1973-11-30
Abstract: 1452305 Semi-conductor devices WESTERN ELECTRIC CO Inc 30 Nov 1973 [1 Dec 1972] 55622/73 Heading H1K A bi-polar transistor comprises a collector region 42 buried beneath an epitaxial layer 43, an isolated part of which forms the base region, the gain of the device being determined by accurate control of the doping of the base region between the emitter and collector regions by forming an ion implanted portion 64 thereat. The implantation of the portion 64 is said to reduce the need for accurate control of epitaxial layer thickness and emitter depth. A low resistivity collector contact region 57 may be formed by ion implantation followed by heating in an oxidizing atmosphere simultaneously to redistribute the ions and form a protective oxide cap 56. Region 57 may constitute a collector series resistance by selectively contacting it at points 61 or 62. To reduce base resistance, impurities may be diffused into the epitaxial layer from a doped oxide layer 47 to form low resistivity region 43A. The emitter region 63 may be diffused into the base region above the implanted portion 64. The isolation of the base region from the remainder of the layer 43 may be by an oxide region 55 (as shown) or a region of the opposite conductivity type to the layer 43 may be used, the latter region also forming the collector contact region. The substrate may be of silicon, the impurities of boron, arsenic, antimony and phosphorus. Masking may be by silicon nitride or aluminium oxide layers. The collector contact region 57 may also form a Schottky diode if contacted by an non- ohmic Schottky contact, or alternatively the contact region may form the base of a lateral transistor with the bi-polar base region and the rest of the epitaxial layer when it forms the isolation region.
Patent GB-1207250-A (GB)
Title: Valve operator
Inventor: BEARD CHESTER S
IPC: F15B15/18
Filed: 1968-11-23
Abstract: 1,207,250. Valves. BELL AEROSPACE CORP. 23 Nov., 1968, No. 55691/68. Heading F2V. [Also in Division F1] A valve operator comprises a piston 211 slidable in a cylinder 212 and having a pistonrod 200 for connection to a valve stem 204, the ends of the cylinder being connected to a pump 201 by passages 207, 208, each containing an outlet valve 329 (Fig. 4) to a reservoir 322, means being provided to open one or other outlet valve to allow the piston to move in one direction or the other and to cause the closure of the outlet valve when the piston has completed its stroke. Each outlet valve 329 is in the form of an arm 331 normally closing a nozzle 332 and movable away from the nozzle by energization of a solenoid. A pointed plunger 316 may be manually depressed to open the valve 329. In operation, actuation of a switch starts the pump and opens one or other outlet valve so that pump supply is exhausted from the cylinder end having the open valve. At the end of the piston's downward stroke, pressure builds up above the piston and acting through a passage 231 causes leftward displacement of a spool 225 adjustably loaded by a spring 238. Movement of the spool actuates a switch 227 which stops the pump and de-energizes the solenoid, thus closing the outlet valve and trapping liquid in the cylinder 212. The trapped liquid locks the piston. At the end of the piston's upward stroke it abuts a rod 241 of a limit switch 242 to cause the pump to stop. Pressure build-up in a passage 237 connected to the space below the piston causes the switch 227 to reset.
Patent GB-1282864-A (GB)
Title: Burner port assemblies for gaseous fuel burners
Inventor: HEATH DENIS JOHN
IPC: F23D14/10
Filed: 1969-11-14
Abstract: 1282864 Gas burner ports RADIATION Ltd 14 Nov 1969 55954/69 Heading F4T A gas burner port assembly which is removable from the burner as a self-contained unit comprises a holder in the form of a channel member 101 having its floor cut away to define a fuel supply inlet, containing a plurality of corrugated ribbon elements 106, the corrugated surface of one ribbon element being adjacent the corrugated surface of another ribbon element, adjacent elements being separated by a plate 105. The ribbon elements are separated from the channel side walls by plates 107 and supported by bridging pieces 104 extending across the fuel inlet. The holder includes outwardly extending flanges 102 positioned to locate the burner port on a gaseous fuel burner.
Patent GB-1203269-A (GB)
Title: Boards for educational or display purposes
Inventor: JOHNSTON MATTHEW
IPC: G09F11/12
Filed: 1967-12-14
Abstract: 1,203,269. Blackboards. WILSON & GARDEN Ltd. 11 March, 1969 [14 Dec., 1967], No. 56829/67. Heading B6P. [Also in Division G5] An endless display surface is formed by interlinked channel elements 1 supported by rollers 11. Each element comprises: a base 2, a limb 3 having an inwardly-directed flange 5 forming a pivot, and a limb 4 having an outwardlydirected flange 7 with an inturned edge 8 for engaging the pivot of the adjacent element. As described the channel elements are backed by an endless web 13.
Patent GB-1454376-A (GB)
Title: Cover arrangement for a container
IPC: E05F11/06
Filed: 1973-12-07
Abstract: 1454376 Hatch cover operating mechanisms MACGREGOR INTERNATIONAL SA 4 Dec 1974 [7 Dec 1973] 56909/73 Heading E2M [Also in Division B7] A cover for a container, e.g. a hatch cover for a ship, or a cover for a vehicle, building or a railway vehicle, comprises panels 11 and 12 hinged together and movable to open and close the container, a rope or chain 16 attached to the panel 12 at 15, and passing over a pulley 17 on the panel 11 enabling the panels to be moved by an upward pull of the member 16, a tripping lever 20 on the panel 12, and a ramp 22 cooperating with the lever to tip the panel 12 to a vertical position when the panels are stowed. The panels are retained in the stowed position by a latch (38), Fig. 4 not shown, mounted on the ramp 22. The hinges between the covers can have fixed dual centres to prevent damage to sealing gaskets. Locating arms 18 guide the movement of the panels. Buffers can be fitted to the ramps 22, and compression springs can be fitted to the structure 19 to assist the closing movement of the panels.
Patent GB-1382187-A (GB)
Title: Diagnostic agent
IPC: G01N33/15
Filed: 1972-12-11
Abstract: 1382187 Detection of urobilinogen BOEHRINGER MANNHEIM GmbH 11 Dec 1972 [19 June 1972] 57021/72 Heading G1B A diagnostic agent for the detection of urobilinogen, possibly together with bilirubin, in body fluids, comprises at least one stable non-polymeric phenyl-, pyrrole- or pyrazole-diazonium salt which is annellated with an unsubstituted or substituted iso- or heterocyclic aromatic system in a mesomerizable and sterically unhindered position or is substituted directly or via a vinylene radical with an unsubstituted or substituted iso- or heterocyclic aromatic system and/or at least one non-polymeric pyridine- or pyrazole-diazonium salt which contains, in mesomerizable position, at least one polyatomic electron donor group with at least one mesomerizable electron pair, the sum of the Hammett sigma values of all substituents and heteroatoms not exceeding the value of +0.6, together with at least one inorganic or organic acid. The specific examples given are too numerous to list. The agent may be mixed with an acid, a wetting agent and methanol and used to impregnate test strips of filter-paper.
Patent GB-1185005-A (GB)
Title: Electronic Data Processing System
IPC: G09G1/00
Filed: 1968-12-02
Abstract: 1,185,005. Cathode-ray tube displays. INTERNATIONAL BUSINESS MACHINES CORP. 2 Dec., 1968 [14 Dec., 1967], No. 57058/68. Heading H4T. [Also in Division G4] An electronic data-processing system includes a display device to display the contents of selected parity-checked data storage registers in such a manner that data for which a parity error exists is displayed differently to data which does not have a parity error. The contents of multi-character registers are displayed at different respective vertical positions on a CRT screen, each character being traced out as a series of strokes under control of a series of X and Y deflection voltages obtained by digitalto-analogue converters from digital deflection signals provided by a character generator (as in Specification 1,078,545 which is referred to) fed with the 4-bit code for the character decoded to 1-out-of-16 form. If the 4-bit code failed a parity check, the display of the character (or of the whole register containing it) is blinked on and off repetitively. Clock-driven X and Y deflection counters feeding digital-to-analogue converters are provided to deflect the CRT beam to successive characters. The beam intensity is controlled in accordance with stroke length to give constant brightness, since each stroke is traced in the same time. Each 4-bit code may be displayed as such instead of as an alphanumeric character.
Patent GB-1388990-A (GB)
Title: Glare-reducing window pane and automotive window arrangement using the pane
IPC: C03C27/12
Filed: 1973-12-11
Abstract: 1388990 Glare reducing window assembly NISSAN MOTOR CO Ltd and CENTRAL GLASS CO Ltd 11 Dec 1973 [12 Dec 1972] 57282/73 Heading C1M A window assembly, particularly for vehicle windows, comprises a glare reducing window pane 16 supported along its periphery by a window frame structure 14, the pane comprising a sheet 16 of transparent glass, an opaque film 18 along the peripheral surface area on one side of the glass and a plurality of spaced opaque film pieces 20 substantially uniformly distributed on the remaining surface area of the one side of the glass and a seal 22 between adjacent edges of the window frame structure 14 and the pane 16. Preferably the film 18 extends inwardly beyond the seal 22 and an outer edge area 24 is left clean. The film pieces 20 may be in the form of dots, broken lines or, as shown, continuous parallel lines and they may be straight, horizontal, vertical or angled lines or may be curved. The seal 22 is preferably of resilient rubber and where necessary, secured as by bolts 26 and nuts 28. The opaque films 18, 20 are preferably of a paste of dark coloured pigment and glass in a binder, applied by a silk screen printing process. The films are preferably applied before tempering of the glass so that the heating to temper the glass (which is then quenched), effects fusing.
Patent GB-1205257-A (GB)
Title: Stabilized polyesterurethanes
Inventor: BRITAIN J W
IPC: C08K5/1565
Filed: 1967-12-18
Abstract: 1,205,257. Stabilized polyesterurethanes. MOBAY CHEMICAL CO. 18 Dec., 1967 [19 Dec., 1966], No. 57320/67. Heading C3R. Polyesterurethanes are stabilized against hydrolysis and aging by incorporating an alkylene carbonate therein. The alkylene carbonate may be added to the polyesterurethane or to any reaction component used in the preparation of the polyesterurethane, and is preferably used in an amount of 0.1 to 10% by weight of the weight of polyester used in the preparation of the polyesterurethane. Preferred alkylene carbonates are ethylene carbonate or propylene carbonate. The polyesterurethane is suitably prepared by reacting conventional polyesters or polyesteramides with a polyisocyanate and optionally a chain extending agent such as a glycol, diamine, alkanolamine, hydrazine, substituted hydrazines and hydrazides. Carbodiimides may be added as additional stabilizing agents.