baber/WOPTO huggingface dataset:
Patent GB-938563-A (GB)
Title: Improvements in and relating to circuit arrangements for automatic voltage control
Inventor: BARANY THOMAS ERNEST
IPC: G05B11/42
Filed: 1959-12-02
Abstract: 938,563. Automatic voltage control. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 22, 1960 [Dec. 2, 1959], No. 41002/59. Class 38 (4). In an automatic voltage control arrangement for providing a reference voltage for a motor speed control system a variable reference voltage is derived from a potentiometer P1, having a slider positioned by a manually controlled member, connected across Zener diodes Z1, Z2 and compared at the input to an amplifier A1 having a positive gain, with the voltage across a load LD. The output of the amplifier A1, representative of the direction of the load voltage from the voltage set by the potentiometer P1 is limited by clamping circuits formed by diodes- Z3, Z4, resistors R7, R8 and potentiometers P2, P3. The level of output signal at which the clamping circuits operate is set by potentiometers P2, P3. The limited output signal is fed to an' integrating circuit comprising amplifier A2 of negative gain having reactive feedback through a capacitor C1. Variation in the reference voltage, due to movement of the member, causes the load voltage to change at a rate limited by the clamping circuits.
Patent GB-1254249-A (GB)
Title: Switching device
IPC: H01H1/02
Filed: 1970-08-26
Abstract: 1,254,249. Switch contacts. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 Aug., 1970 [29 Aug., 1969; 10 June, 1970], No. 41104/70. Heading H1N. [Also in Division C7] An electric switch contact such as is used in a sealed magnetic reed contact unit has at least two surface layers, the outer layer being of metal-and from 0À1 to 5 Ám. (10<SP>-6</SP> meter) thick and an inner layer including, at least 1% by volume of a non-metal. The inner layer may be from 0À001 to 1 Ám. thick andconsist of carbon or graphite or phosphorous or sulphur or silicon or a metal oxide and the outer layer may be ruthenium or rhodium. Alternatively the inner layer may be at least 0À1 Ám thick and consist of a finely divided non-metal in a metal such as gold having a melting point of less than 1500‹ C. The inner layer may be coated on a further inner layer of ruthenium which may be coated on further layers of carbon and ruthenium.
Patent GB-1082500-A (GB)
Title: Tuft yarn carriers for gripper axminster looms for weaving
Inventor: WRIGLEY HENRY
IPC: D03D39/06
Filed: 1964-10-09
Abstract: A tuft yarn carrier for gripper Axminster looms is composed wholly or partly of plastics material.  The side plates, spacers, springs and yarn tubes are made from various combinations of metal or plastics material.
Patent GB-1083180-A (GB)
Title: Circulating pumping system for steam generators
IPC: F22D5/34
Filed: 1965-09-28
Abstract: 1,083,180. Centrifugal pumps. COMBUSTION ENGINEERING Inc. Sept.28, 1965 [Dec.14, 1964], No.41253/65. Heading F1C. [Also in Division F4] A pumping system for use in a forced circulation steam generator has a number of centrifugal pumps, e. g. three, integral with the lower water drum 52, Fig. 3, supplied from the upper steam and water drum through downcomers 42. The pumps deliver to a number of tubes 24 which line the wall of the furnace of the generator. The drum 52 comprises a large diameter central portion 52a carrying the pumps, and smaller diameter end portions 52b, Fig. 2 (not shown), which communicate with a second water drum 26, Fig. 1A (not shown). Water delivered into a suction chamber 61 of the drum 52 passes through inlet 60 to a pump impeller 54 and is discharged thereby through six angularly-spaced outlet passages 64, check valves 66 and a chamber 62 to the tubes 24. In an alternative embodiment, Fig. 5 (not shown), the check valves 66 are omitted and a single check valve is arranged in the pump inlet 60.
Patent GB-1398943-A (GB)
Title: Refrigeration or air conditioning device for transportable  container units
IPC: B65D88/74
Filed: 1973-09-04
Abstract: 1398943 Containers; portable space cooling apparatus E MAIL Ltd 4 Sept 1973 41423/73 Headings F4H and F4V [Also in Division F2] A refrigeration or air conditioning unit for use in attaching to the air inlet and outlet ducts of transport containers comprises within a housing 21 defined by a framework 11 and cover panels 20, an air inlet chamber 23 and outlet chamber 24, on a compressor-condenser-evaporator refrigeration system. The unit also includes fans encased in shrouds 22 for moving air past the condenser coil and a centrifugal fan to allow air into the chamber 23 and to discharge the air past the refrigeration system to the chamber 24. The chambers 23, 24 communicate with first and second coupling means 25 projecting from either side of the unit. Each means 25 includes a frame structure 26 which supports extensible inlet and outlet ducts 27, 28 formed of double-walled corrugated plastics hose protected by a pair of coaxial overlapping steel cylinders 29. The unit can thereby service two adjacent transport containers. In a warehouse depot, one unit may be placed on top of another forming a tower. The coupling means 25 may be extended or retracted by a pneumatic cylinder and ram unit 31 and is constructed so as to permit limited misalignment between a container and the unit 10. The coupling frame 26 may be counterweighted so that the lower duct 27 may be aligned up to plus or minus six degrees in any plane and once positioned, the ram unit is actuated to bring the upper duct 28 into alignment.
Patent GB-1098957-A (GB)
Title: Compositions containing enzymic material for the treatment of nasal allergies
Inventor: POPPER FRANTISEK
IPC: A61K38/47
Filed: 1965-09-30
Abstract: Injectable pharmaceutical compositions for treating nasal allergic conditions consist of an isotonic, sterile aqueous solution of highly purified substantially homogeneous hyaluronidase, referred to as glucuronoglycosaminoglycan hyaluronate lyase (GL).  A suitable GL preparation is that of Specification No. 1,060,513.  The solution, which is preferably in p  isotonic saline, may be prepared by dissolving lyophilised GL in the saline to give a concentration of 150 to 50,000 International Units per ml. H is used for injection into the inferior nasal turbinal to relieve the symptoms of seasonal or non-seasonal allergy.
Patent GB-881134-A (GB)
Title: Improvements in or relating to slurry screening apparatus
IPC: B01D29/00
Filed: 1959-12-08
Abstract: 881,134. Filters in parallel. BELOIT IRON WORKS. Dec 8, 1959 [May 12, 1959], No. 41756/59. Class 46. Paper stock entering a central feed chamber 12 at 28 is agitated by rotating arms 13 but is prevented from rotating by fixed vanes 14. Pressure pulsations within filter screens 10, to clean them, are produced by foils 16 at the ends of the arms 13. Slurry filters outwards through the screens, collects in an annular chamber 19, Fig. 1, and is discharged at 19b, Fig. 2. Residual (rejected) slurry collects in an annular manifold 21, Fig. 1, and is discharged at 22.
Patent GB-1441138-A (GB)
Title: Press-button panel
IPC: H01H1/20
Filed: 1973-09-05
Abstract: 1441138 Retractive switches; push button switches; switch bases LA TELEPHONIE INDUSTRIELLE ET COMMERCIALE 5 Sept 1973 [7 Sept 1972] 41859/73 Heading H1N A press-button panel with a matrix configuration comprises a parallel arrangement of longitudinal beams 3 of moulded material with cavities 15 for containing a plurality of push-button switches and having ends formed with positioning spigots 5 and clipping devices 4, 4<SP>1</SP> for assembly to ribbed mounting transoms 20, 20<SP>1</SP> of resilient moulded material and having locating holes 23<SP>1</SP> for the spigots 5 and integral clips 24, 24<SP>1</SP> for co-operating with the clipping devices 4, 41 of the beams. The matrix is mounted to a printed circuit plate 1 by notched resilient tabs 25 extending from the transoms 20, 20<SP>1</SP> and which co-operate with recesses 2 in the plate which also has guide holes 8 for the pushbutton switch operating rods and carries fixed contacts such as 9, 10 as well as arrays of indicating lamps 13 each covered with a translucid cap 12. Each press-button switch 40 comprises a cap 31 with a reference plate 32, 33 held to a head socket 41 by protuberances 34, 34<SP>1</SP> which are sprung into holes 46, 46<SP>1</SP>, a guide part 42 located within the cavity 15 of a beam 3 and a movable contact 49, retractive springs &c., being held on an operating rod 43 by a fixing part 50 which is pushed over the end 45 of the operating rod after its insertion through a hole 6 in the base of the cavity. Fig. 7 (not shown) indicates a push button switch in the operated position in which the fixed common contact 9, and its individual fixed contact 10, are bridged by the movable contact 49. The individual switches and the whole press-button panel can be assembled without the use of tools.
Patent GB-1079036-A (GB)
Title: Improvements in or relating to alloy steels
Inventor: HARDWICK DONALD
IPC: C22C38/08
Filed: 1963-10-23
Abstract: An alloy steel comprises:- .C.0.05-0.3% .Si.not more than 0.35% .Mn.not more than 0.8% .Ni.7-10% .Mo.0.3-1.5% .Cu.0-2.5% the balance, apart from impurities, being iron. The steel may be austenetized at 800 DEG  - 1100 DEG C. cooled to 0 DEG  - 250 DEG C., tempered at 300 DEG  - 650 DEG C. and cooled to room temperature in the furnace, in air or in water.
Patent GB-1405782-A (GB)
Title: Apparatus and method for preparing and presenting serum  chemistries for analyzation
IPC: G01N35/00
Filed: 1972-09-08
Abstract: 1405782 Agitating liquids AMERICAN MONITOR CORP 8 Sept 1972 [9 Sept 1971 24 Aug 1972] 41911/72 Heading B1C [Also in Divisions B8, F2 and Gl] A combination mixing and liquid dispensing device for use in automatic analysis apparatus (see Group G1) comprises stationary lower dispensing unit 354 and upper mixing unit 356 vertically movable by pneumatically operable rod 358. Reagent is dispensed from openings 380 into container 33, then the upper unit 356 is lowered by rod 358 to place polytetrafluoroethylene-covered stainless steel mixing rod 370 in the container and motor 368 is automatically turned on to rotate rod 370 to mix the contents of the container. Another embodiment (Fig 22 not shown) also comprises a lower dispensing unit and a vertically movable upper mixing unit, but the mixing device is an open ended rod (720) to which is fed a controlled supply of inert gas. The mixing unit is returned to its upper position by the action of a spring and its arrival at the upper-position is detected automatically.
Patent GB-1027150-A (GB)
Title: Recovery of polymers
Inventor: BEAMES ADRIAN NORTON
IPC: C08F6/22
Filed: 1963-10-24
Abstract: In a process for the isolation of polymer from an emulsion polyvinyl chloride latex, the latex is subjected to freezing and thawing, thereby forming a slurry of coagulated polyvinyl chloride with the water, and the slurry is heated to a temperature sufficient to effect further coagulation and/or agglomeration whereby the coagulated polyvinyl chloride may be readily separated from the aqueous phase. Freezing may be at -5 DEG  to -20 DEG  C. for a period preferably not exceeding 1 hour, and the slurry heated to 90 DEG  to 95 DEG  C.  The coagulated polymer may be separated by centrifugation.  In an example, the process of the invention is applied to a latex prepared by polymerizing vinyl chloride in an aqueous medium containing ammonium persulphate and ammonium stearate.
Patent GB-1374497-A (GB)
Title: Process for spinning fibres from fibrous animal protein
IPC: A23J3/28
Filed: 1972-09-11
Abstract: 1374497 Protein fibres ASAHI KASEI KOGYO KK 11 Sept 1972 [13 Sept 1971 15 Nov 1971 (2)] 42079/72 Heading B5B [Also in Division C3] A process for producing protein fibres comprises forming an aqueous solution containing muscular protein of animal origin and at least one unsaturated fatty acid having from 14-22 carbon atoms and/or a non-toxic salt thereof, and spinning fibres from the aqeuous solution. The preferred acids are myristoleic, palmitoleic, oleic, linoleic, linolenic, arachilonic and clupadonic and their salts used may be those of NH 4 , Na, K, Ca, Mg, Ba, or Al. The fibres may be spun by passing the solution into a coagulation bath containing at least one inorganic salt at a pH of 2-5 and they are then stretched to 150-500% of the original length in the coagulation bath (see also Division C3).  A second stretching in a bath may be performed if desired.
Patent GB-1072675-A (GB)
Title: Detergent compositions
Inventor: BREARS JOHN HERBERT
IPC: C11D3/28
Filed: 1963-10-25
Abstract: Detergent compositions containing a polyphosphate builder also contain, as an antitarnishing agent, tetrachlorobenzotriazole or a water-soluble salt thereof.  The builder may be sodium tripolyphosphate, and the compositions may also contain a chlorine bleach, e.g. chlorinated trisodium polyphosphate or disodium dichloroisocyanurate.  An anionic, cationic or non-ionic detergent may be present, though none are specified.
Patent GB-1152735-A (GB)
Title: Method of making Contact to Semiconductor Components
IPC: H01L23/045
Filed: 1966-09-21
Abstract: 1,152,735. Semi-conductor devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 Sept., 1966 [19 Oct., 1965], No. 42158/66. Heading H1K. A strip or sheet of insulating material is provided with recesses to receive the electrode leads of several semi-conductor components and with metallic contact areas adjacent the recesses, the leads are pushed into the recesses and electrically connected to the contact areas and then, after low resistance contact has been made between the electrodes of semi-conductor elements mounted on the strip or sheet and the contact areas, the strip or sheet is subdivided into pieces carrying individual elements. Typically the strip 3 (Fig. 3) is of beryllia or other ceramic, is divided by transverse grooves etched, milled, or impressed, in the ceramic before firing, and has contact areas of aluminium, gold, or gold alloy formed on it by screen printing, or by vapour or electrolytic deposition. As shown, planar transistors are soldered by their collector zones to one contact areas and have flying leads thermo-compression bonded between the other contact areas and their emitters and bases. Header leads 13, 14 ,15 are connected to the contact areas by solder rings 16, the strip broken at the grooves and caps sealed to the headers. The holes may be replaced by notches in the edges of the strip and annular grooves used so that the broken off parts match the shape of the header. In a further arrangement a sheet with a two dimensional array of contact areas is used. In this case free leads are placed in the holes and after the electrical connections have been completed the upper face of the sheet is coated with epoxide resin prior to subdivision to protect the elements.
Patent GB-1126141-A (GB)
Title: Improvements in or relating to fluid metering systems
IPC: G01F7/00
Filed: 1966-09-21
Abstract: 1,126,141. Valves. J. MARX. 21 Sept., 1966 [22 Sept., 1965], No. 42220/66. Heading F2V. [Also in Division G1] A change-over valve, for compound flow meter systems, directs the flow through an auxiliary meter 27 when the flow rate is low and by-passes this meter when the flow rate is high. A primary meter (not shown) is connected to the inlet 3 of the valve casing 1. Within this casing is a shell body 6 which provides a seating 11 for a primary flow responsive valve member 15. This shuts off direct flow through ports 7 to the outlet 4 at low flow rates. In this condition the fluid goes through holes 19 in the valve member 15 and through a seat 12 into a chamber 8, whence the fluid enters the meter 27 and flows round the shell body 6 to the outlet 4. The valve member 15 is slidable on a cylindrical guide 16. When the flow rate has sufficiently increased, an auxiliary flow responsive valve member 21, which is slidably mounted coaxially with the first valve and adjustably loaded by weights 23, rises to close the holes 19. The main valve then opens rapidly from the seat 11 and closes the seat 12 to the meter. The flow passage round the auxiliary valve is tapered inwardly in the direction of flow as shown. A static pressure connection 32 from this passage can be used to operate a brake for the primary meter so that only one meter is working at a time. If the primary meter is placed downstream of the valve, braking is not necessary. However, the low flow is not returned to the outlet 4. The return is blanked off by a partition 35 and the flow led from an auxiliary outlet 34 to a point downstream of the primary meter.
Patent GB-1523136-A (GB)
Title: Pushbutton switch
IPC: H01H1/58
Filed: 1975-10-15
Abstract: 1523136 Mechanical switches INTERNATIONAL STANDARD ELECTRIC CORP 15 Oct 1975 42267/75 Heading H1N A pushbutton switch comprises a pushbutton 2 displaceable in an open frame 1 of insulating material for actuating leaf-spring contacts 4 inserted in edge grooves or slots 5 in a member of the frame 1.
Patent GB-1504267-A (GB)
Title: Electrical switches for ignition in gas appliances
IPC: H01H19/18
Filed: 1976-10-12
Abstract: 1504267 Mechanical switches; momentary contact closure ILLINOIS TOOL WORKS Inc 12 Oct 1976 [14 Oct 1975] 42276/76 Heading H1N A rotary electric notch suitable for coupling to the shaft of a gas valve of a gas-fired appliance for the operation of an ignitor has a cam 80, Fig. 3, arranged to close the contacts 78, 79 when rotated in one direction and which prevents closure of the contacts when rotated in the opposite direction. The cam 80 is engaged over the D-section shaft 40 of the gas valve and has a raised portion 87a whereby a spring wire contact 76, 78 is raised to engage a fixed spring blade contact 55, 79 located over studs 57, 58 of the housing. On continued movement of the cam 80 the controls are reopened. On return movement of the cam 80 a cam guide 86, Fig. 4, with tapered ends 90, 91 urges the contact 76 to the side of the guide 86 remote from the raised portion 87a so that the contacts are not reclosed. The wire contact 79 may be welded or retained by lugs on a terminal member 70, 73.
Patent GB-1484529-A (GB)
Title: Surgical suction devices
IPC: A61M1/00
Filed: 1975-10-16
Abstract: 1484529 Surgical suction devices BONNIER HOSPITAL INDUSTRIES AB 16 Oct 1975 [18 Oct 1974] 42474/75 Heading A5R Apparatus for applying suction to remove fluid from a wound site comprises a tubular handle 3 from which extends an inner tube 5, and an outer tube 6 formed with openings 10 and a seating 14, the tube 6 being slidable on the handle 3 between a position in which the distal end of tube 5 contacts the seating 14 as shown so that suction is effective only through the distal end of the outer tube and a position in which the tube 5 is spaced from the seating 14 so that suction is effective through the openings 10 and the end of tube 6. The handle 3 is provided with a connector 4 for a hose 2 leading to a suction pump. The handle 3 and tube 6 may have apertures 16, 18 respectively so that the suction effect can be varied either by rotating tube 10 with respect to the handle or by the user holding a finger over apertures 16, 18 when they are aligned. The tube 5 may comprise a plastics tube reinforced with a metal wire so that it can be bent to desired shape.
Patent GB-879066-A (GB)
Title: Ram or spindle and tool holder for machine tools, particularly for boring and turning mills
IPC: B23B29/04
Filed: 1959-12-16
Abstract: 879,066. Tool-holders. SCHIESS A.G. Dec. 16, 1959 [Dec. 23, 1958], No. 42705/59. Class 83 (3). In a machine-tool e.g. a boring or turning mill, the tool-holder 3 having a split shank 6 is secured in the machine spindle or ram by a draw-bolt 17 passing through the holder and engaging a conical. nut 21 thus expanding the shank. The bolt 17 is rotated at 18 and the nut is keyed against rotation at 23. A split clamp 9 tightened by tangential bolts 10 engages a flange 8 on the holder, and a shoulder 13 on the machine spindle, and centres the holder by a tapered portion 30 on the latter engaging a corresponding taper in the bore 6 of the machine spindle. The tool-holder is keyed to the spindle at 15. In a modification a boring bar 3<SP>1</SP>, Fig. 4, is secured to the spindle 1 in the same manner as above, but the shank 6 is expanded by moving the bolt 17<SP>1</SP> longitudinally when a tapered cotter 26 is moved laterally to engage a slot 25 in the boring bar.
Patent GB-1183967-A (GB)
Title: Mos Tetrode
IPC: H01L29/78
Filed: 1967-09-20
Abstract: 1,183,967. Semi-conductor devices. R.C.A. CORPORATION. 20 Sept., 1967 [13 Oct., 1966], No. 42755/67. Heading H1K. An insulated gate field effect tetrode device comprising low resistivity source and drain regions 13, 14, an intermediate low resistivity region 15 and insulated gate electrodes 22, 23 over the spaces between the intermediate region and the regions 13, 14, is characterized in that the width of contact of each of the electrodes 20, 21 with the respective region 13, 14 is less than the width of the region, the width of each of the electrodes 22, 23 where it overlies the respective space is not greater than the width of the space, and the width of the intermediate region is less than 0À64 mils. The regions may be of various shapes, for example rectangular, U-shaped (Fig. 3, not shown), X-shaped (Fig. 4, not shown), or circular, and may partly or wholly surround one another. In a modification (Fig. 5, not shown) two or more intermediate regions each less than 0À64 mils wide are provided, together with three or more insulated gate electrodes. The semi-conductor body may consist of germanium, silicon, the nitrides, phosphides, arsenides or antimonides of boron, aluminium, indium or gallium, the sulphides, selenides or tellurides of zinc, cadmium or mercury, or alloys of these materials, and the low resistivity regions are formed by diffusing an impurity such as arsenic, antimony or phosphorus through a masking layer of silicon oxide, silicon nitride or silicon oxynitride. The mask is removed, a dielectric layer 19 consisting of silicon monoxide, silicon dioxide, silicon nitride, silicon oxynitride, silicon carbide, magnesium oxide, magnesium fluoride, titanium carbide, titanium oxide, titanium nitride, hafnium oxide, vanadium oxide or aluminium oxide is deposited on the face of the body, windows are formed over the regions 13, 14, and aluminium, palladium or chromium is deposited to form electrodes 20, 21, 22, 23.