baber/WOPTO huggingface dataset:
Patent GB-1286506-A (GB)
Title: Improvements in refrigeration systems
IPC: F25D3/10
Filed: 1969-11-21
Abstract: 1286506 Refrigeration systems UNION CARBIDE CORP 21 Nov 1969 [25 Nov 1968] 56975/69 Heading F4H In a system for refrigerating perishable products 12, Fig. 6, in an insulated chamber 11 which may be static or movable, a low boiling point liquid refrigerant e.g. nitrogen is sprayed from spaced apertures 22 in an overhead conduit 21, the flow of refrigerant from a source 14 being controlled in accordance with the ambient temperature in the chamber via a sensor 17 and valve 16. At least the insulated inlet portion 15 of the conduit 21 has one or more extended surface members 23 of heat conductive metal exposed to the environment gas within the chamber and in heat conducting contact with the thermal insulation of the conduit to partially vapourize the liquid prior to its discharge through the spray apertures 22. The input and spray portions of the conduit 21 extend longitudinally of the chamber 11 along opposite upper corners thereof and the metal members 23 which are riveted to the chamber walls as shown in Fig. 2, comprise a subsubstantially horizontal section 24 and a downwardly projecting section 25. The sections 24 and 25 are joined by an intermediate section 26 contiguously and thermally associated with the thermal insulation 27 on the conduit 21. A fan 40 may be provided to circulate the gas within the chamber 11.
Patent GB-1495382-A (GB)
Title: Transport containers
IPC: B65D88/74
Filed: 1973-12-10
Abstract: 1495382 Containers SHIPOWNERS REFRIGERATED CARGO RESEARCH ASSOCIATION 6 Dec 1974 [10 Dee 1973] 57040/73 Heading F4H A transport container includes a rectangular base frame 13 with an open channel-section end member 10 extending across the width of the container and forming therein a chamber 11 communicating with the interior of the container, an inlet opening 14 in the member 10 for the admission of cool air from outside the container, a closure plate 20 disposed on the interior side of the opening 14 and retractable into the chamber, and an outlet opening (6, Fig. 1) for the discharge of air from the container. The wall of the container is formed of a metal frame, an outer metal lining 16 and an inner plywood lining 18. The cover-plate 20 has a pair of lugs 21 which are pivotally connected to arms 22 swingedly secured to a rod 23 which is rotatably mounted in end brackets 24. The upper edge of the plate 20 carries at its ends guide rollers 25 which run in guide rails 26.
Patent GB-1450119-A (GB)
Title: Logic circuits
IPC: H03K19/017
Filed: 1973-12-13
Abstract: 1450119 Logic circuits TELETYPE CORP 13 Dec 1973 [22 Dec 1972] 57917/73 Heading H3T A logic circuit includes a switch 16 responsive to an input signal and having its conduction path connected in series with the source to drain path of an FET 14, a voltage feed-back circuit C 2  connected between the gate, source terminals of 14, a voltage bias circuit 12 having one terminal connected to a voltage source of higher magnitude than that of a second voltage source connected to the drain of FET 14. In the inverter shown, the bootstrap or feed-back capacitor C 2  enables the gate of FET 14 to be over-driven so that the output voltage equals the drain voltage when the driver FET 16 is off. The FET 12 may be replaced by a diode. MOSFETs of the P or N channel and operating in the enhancement or depletion mode may be used. A choice of lower drain voltage compared to the bias supply voltage enables the size of FETs, the power dissipation and stray capacitances to be minimized.
Patent GB-1303441-A (GB)
IPC: G06V10/12
Filed: 1969-11-28
Abstract: 1303441 Confirming signatures electrically MOSLER SAFE CO 28 Nov 1969 [27 Jan 1969] 58323/69 Heading G1N [Also in Division B6] The varying force on a pen produced when an individual signs his name e.g. on a cheque, is measured electrically and compared with a predetermined force/time pattern for confirming the identity of the writer. As shown, Fig. 8, the pen 10 has a spring-loaded ball point catridge 52 acting on the cover 72 of a differential transformer 70 whose output is recorded and compared with the authentic force/time pattern manually, electrically using analogue or digital techniques, or photo-electrically. The force transducer may alternatively be a variable capacitor, a strain gauge, or a Piezo electric element.
Patent GB-1249141-A (GB)
Title: A wire cutting and bending tool
Inventor: PAWLOSKI JAMES A
IPC: H05K13/04
Filed: 1968-12-11
Abstract: 1,249,141. Bending cutters; making electrical connections. J. A. PAWLOSKI. 11 Dec., 1968 [11 Dec., 1967], No. 58984/68. Headings B3A and B3W. A wire cutting and bending tool for use in securing electrical components 25 to printed circuit boards 22, Fig. 7, comprises a housing 27, Fig. 2, containing a piston 29 to which is attached a quill 41, a quill guide 40 having a bevelled end adapted to rest on a printed circuit board and a slot 57 transverse to a passage 40A which receives the end of a wire 24 of an electrical component 25. The quill has a bevelled end 41A which co-operates with the guide to trim the wire and then bend over the trimmed end of the wire as at 26. The bevelling of the end of the quill guide may be of any suitable angle. The piston 29 is biased by means of a spring 42 into its inoperative position. Fluid is admitted to the piston chamber 28 by means of a valve 50 operated by a lever 59 attached to the housing 27. The valve is of the spool type and two embodiments are described, the one shown in Fig. 2 being held in a position to prevent fluid under pressure from flowing from an inlet 47 to the piston 29 by means of the fluid pressure itself. The second valve described, Figs. 4, 5, 5A (not shown), is held in the position of preventing fluid flow to the piston 29 by means of a spring (84).
Patent GB-1139559-A (GB)
Title: Improvements in or relating to gantry cranes
IPC: B66C23/36
Filed: 1967-12-29
Abstract: 1,139,559. Cranes. A. T. VAN HUET. 29 Dec., 1967 [30 Dec., 1966], No. 59123/67. Heading B8B. A gantry crane comprises telescopic gantry legs 32, Fig. 1, interconnected by a cross-member 5, Fig. 3, on which a jib 16 is mounted for pivoting movement in a substantially horizontal plane, the crane being mounted on wheels 3 and each leg supporting an endless chain or cable 9 for telescopically moving the leg and driving the associated wheel 3. The crane is mounted, e.g. on a vehicle, by means of channels 1 on which the wheels 3 run and in which are guided rollers 2, 2<SP>1</SP> on feet 31 extending from the legs 32. The legs 32 comprise lower portions 4 and extensible upper portions 4<SP>1</SP>, and the chains or cables 9 are driven by a motor 6 through a cross-shaft 7. Each chain or cable 9 extends over a roller 13 on the shaft 7, a roller 10 on the axle of the wheel 3, a roller 11 at the top of the leg portion 4 and a roller 12 on the leg portion 4<SP>1</SP>. In operation a locking device 14 is used to lock the roller 10 against rotation so that when the chain or cable 9 is driven the leg portion 4<SP>1</SP> is moved relative to the portion 4. The portions 4, 4<SP>1</SP> are then interlocked and the device 14 is operated to unlock the roller 10 so that the chain or cable 9 drives the wheel 3. The roller 12 is mounted eccentrically on a carrier which can be rotated to tension the chain or cable 9. The jib 16 is pivoted at 20 on a member 17 carried by a rotatably mounted ring 15 and having arms 17<SP>1</SP> from which the jib is suspended by cup springs 19. The jib comprises two spaced channels 21, 21<SP>1</SP> in which run wheels 22, 221 of a trolley 33, the wheels 22, 22<SP>1</SP> being mounted on shafts carrying load cable rollers spaced a distance sufficient to permit a load support roller 23 to be raised therebetween. The trolley 33 is driven by a motor 25 through an endless chain 26. Electrical contact elements associated with the springs 19 stop the trolley drive when the springs are compressed, to limit the load moment on the jib. The jib is pivoted horizontally by a chain or cable 27, Fig. 4, which passes round pulleys 35 one of which is driven, the chain or cable being attached to the jib by tension springs 29 which allow for the pivoting movement of the jib. The load is lifted by a motor disposed at the rear of the jib.
Patent GB-1371046-A (GB)
Title: Manufacture of cigarettes
IPC: A24C5/47
Filed: 1970-12-15
Abstract: 1371046 Making mouthpiece cigarettes MOLINS Ltd 14 Dec 1971 [15 Dec 1970] 59490/70 Heading A2C Mouthpiece cigarettes are made by cutting an axially-moving continuous cigarette rod into multiple cigarette length rods D, cutting the rods D while they are moving laterally to produce individual cigarette lengths A, B, arranging the lengths A, B, so produced into axially aligned pairs in which the outermost ends are ends Y resulting from cutting the rods D, inserting a double length mouthpiece portion S between the cigarette lengths A, B of each pair, joining the cigarette lengths A, B and mouthpiece portions S by encircling bands, and cutting through the mouthpiece portions S at Z to produce individual mouthpiece cigarettes C1, C2. As shown in Fig. 3, double length cigarette rods issuing from the cut-off of a continuous cigarette making machine are braked by a roller 5 as they pass into flutes (4) of a catcher drum 1 to rest against stops 7. The drum 1 includes a circumferential slot 6 into which a disc knife (2) extends to bisect the rods D into single lengths A, B to form two rows of cigarettes. The cigarettes B are transferred into the grooves 8 of a second drum (3) and, during one complete revolution of the drum (3), are displaced along the flutes 8 (from right to left as viewed in Fig. 3) by means of air jets 9 to come to rest against stops 12. The cigarettes B are then transferred back to the drum 1 and the row of cigarettes A together with the displaced row of cigarettes B are transferred to a further drum (13) on which double length mouthpiece portions S are placed between each pair of cigarettes A, B, the resulting assembly closed up together, united by an encircling band, and bisected. Instead of using air jets 9, for displacing the cigarettes B along the flutes 8, a helical guide could be used. Multiple length cigarette rods longer than double may be used. For example if triple length rods are used two knives (2) would be used to produce three rows of cigarettes the centre one of which could be removed to provide a supply of plain cigarettes, the outer two rows being treated as before. If quadruple length cigarettes rods are used, four rows of cigarettes would be produced of which it would be necessary to displace only one of the two outer rows to produce two parallel pairs of rows having ends Y at their outermost ends.
Patent GB-1281306-A (GB)
Title: Electromagnetic flat-type relay
IPC: H01H50/68
Filed: 1970-12-17
Abstract: 1281306 Electromagnetic relays INTERNATIONAL STANDARD ELECTRIC CORP 17 Dec 1970 [19 Dec 1969] 59929/70 Heading H1N A " flat " electromagnetic relay for mounting on a printed circuit board, has a contact assembly 30 extending substantially along the core axis and has a resilient pivoted lever or levers 92 engaged by the armature 110 and a biasing compression spring 100 and having one limb 91 forming the movable change-over contact member. The lever 92 is pivotally mounted at 83 on a terminal member 81. The U-shaped armature has the ends of its limbs (Fig. 2, not shown) arranged to rock on pins projecting from the outer limbs of an E-shaped cone and yoke member having the coil 150 surrounding its central core 131. The armature is biased toward a stop 141 by a pair of tension springs 160, (170).
Patent GB-1368458-A (GB)
Title: Support device for an assembly of exhaust manifolds for internal  combustion engines
IPC: F16L3/223
Filed: 1971-12-23
Abstract: 1368458 Supporting exhaust pipes SOC D'ETUDES DE MACHINES THERMIQUES 23 Dec 1971 60044/71 Heading F1B [Also in Division F2] A device for supporting a cluster of I. C. engine exhaust manifolds 1, Fig. 1 and adapted to bear on the engine comprises a tube 2 consisting of detachable elements 3 each element including one portion of the tube and at least one flexible side arm 5 arranged so that the adjacent arms of any two successive elements are in mutual registering symmetrical relationship with respect to a transverse plane so as to hold tightly at least one manifold placed therebetween. The tubes enclose a tie-rod 4, Fig. 2 having a screw-threaded engagement with the lowest tube and bearing on a spring-supported seating 19 whereby the height of the device can be adjusted. The manifolds may have a heat-insulating sheathing Fig. 3 (not shown). The device may support manifold clusters at joint connections Fig. 5 (not shown).
Patent GB-1319670-A (GB)
Title: Continuous production of light-conducting glass fibres
IPC: C03C21/00
Filed: 1970-12-30
Abstract: 1319670 Producing optical fibres NIPPON SELFOC KK 30 Dec 1970 [30 Dec 1969] 61805/70 Heading C1M An optical fibre in which the index refractive varies across the fibre cross-section is produced by causing a first kind of molten glass 1 which contains ions e.g. Te which contribute towards a high refractive index to flow through at least one central nozzle and causing a second kind of molten glass 2 in which such ions are absent to flow through a surrounding annular nozzle, the tip of the central nozzle being spaced upstream from that of the annular nozzle, thus allowing mutual thermal diffusion to take place between the two kinds of glasses so that the said ions are exchanged with ions e.g. Li, Na, K, Rt and/or Cs from the second kind of glass which contribute towards a lower retractive index. A plurality of central nozzles may be employed surrounded by one, annular nozzle. The first glass may have the composition in mol.% of SiO 2  70À3; Na 2 O 17À0; Tl 2 O3À3 and PbO 9À4 and the second glass a composition of SiO 2  70À5; Ma 2 O 17À0; K 2 O 3À5; and PbO 9À0.
Patent GB-1294664-A (GB)
Title: Modified proteins
Inventor: ROON JOHANNES HENDRIK VAN
IPC: A23C9/152
Filed: 1968-12-31
Abstract: 1294664 Fats and oils UNILEVER Ltd 30 Dec 1969 [31 Dec 1968] 61977/68 Heading C5C [Also in Division C3] An emulsion comprises an aqueous phase containing an N-acetyl protein (see Division C3). In an example the non-aqueous phase of the emulsion comprises margarine fats and partial glycerides of palmitic and stearic acids; the molten mixture is added to an aqueous solution of acetylated skim milk and homogenized.
Patent GB-734993-A (GB)
Abstract: 734,993. Starting. CALIFORNIA RESEARCH CORPORATION. Aug. 5, 1953 [Nov. 7, 1952]. No. 21668/53. Class 7(5). In an apparatus for supplying starting fuel to the intake system of an engine, not shown, from a sealed bulb 17 perforable at one end 19 and containing the fuel under pressure comprising a sealed expansion-chamber 11 of constant volume in which the fuel can expand to pressures suitable for use in an engine, a single filling and charging conduit 13 having one end adjacent to the perforable bulb end 19 and opening directly into the chamber 11 at its other end, and adapted to provide communication between the bulb 17 and chamber 11 upon perforation of the bulb, discharge means, such as a nozzle 16, a tube 15, a filter 32 and a manually operable valve 14, are connected to the chamber 11 and permit the release of a desired quantity of fuel from the chamber 11 into the intake system. The body 10 houses the chamber 11, which is of approximately 5 cubic inches volume and is sealed from atmosphere by a valve 12 in the conduit 13, and into which chamber 11 about 10 c.cs. of volatile liquid containing diethyl ether pressurized by methane or ethylene is introduced from the metal bulb 17 when the end 19 is forced into engagement with a seal 20 in the conduit 13 by screwing a bulb receiver 21 into the outer end of the later and so causing a pin 18 to perforate the end 19. A number of bulbs may be successively discharged to start a large engine. The valve 12 comprises a piston 23 on a stem 26, a spring 25 normally urging the valve so that it seals the conduit 13 from chamber 11 ; upon positioning a bulb in the end of the conduit 13 the valve is opened to admit the contents into the chamber 11 and then closed under the action of the spring and the pressure in the chamber when the bulb is removed. A screen 27 is provided below the conduit 11 to prevent foreign matter entering the chamber. The valve 14, which may be opened by angular movements of a ring 36 pivoted in the body 10, is retained in the closed position by a spring 39 whilst a safety latch 30 holds the nozzle 16 and the end of ring 36 in such a position that valve 14 cannot be inadvertently opened. The valve 14 includes a seat 33 adapted to engage the outer end of the tube 15 whilst the latter is also engaged by a seal 34, the elements 33 and 34 being formed of polytetrafluroethylene. Specification 667,850 is referred to.
Patent GB-2026776-A (GB)
Title: Improvements in or relating to Superconducting Magnetic Systems
IPC: H02K55/00
Filed: 1978-07-28
Abstract: A superconducting magnetic system comprises a superconducting sectionalized coil 1. Each section 2 of the coil has a series-connected disconnector 3 with a respective controlled shunt 4 of superconducting material and normal zone detection unit 5 connected in parallel with each respective series circuit of a coil section and its disconnector. The coil is inductively coupled to an energy removal device 6. The energy removal device 6 comprises a heat-insulated compartment 7 cooled to cryogenic temperature. The compartment 7 contains the disconnectors and at least one coil 8 of normal metal and a jumper 9 of superconducting material making up a closed electric circuit. Each controlled shunt 4 and jumper is fitted with a control winding 11, 12. The control windings 11 of the shunts 4 are electrically connected to the respective normal zone detection unit 5. The control winding 12 of the jumper 9 is electrically connected to each normal zone detection unit 5. <IMAGE>
Patent GB-2002884-A (GB)
Title: Hydrostatic transmissions
IPC: F16H61/42
Filed: 1978-08-18
Abstract: A hydrostatic propulsion drive having means for connecting and disconnecting additional driving wheels (30,31), comprises two hydraulic motors (14,15), continuously connected by way of two main ducts (7,8) to a variable displacement pump (1) for respectively driving two first driving wheels (18,19), and two further hydraulic motors (20,21) connectable to and disconnectable from said pump for driving two additional driving wheels (30,31) by way of respective clutches (22,23). A switch-on valve (26) is provided for connecting the further hydraulic motors (20,21) to the pump (1) through the main ducts (7,8) by way of a switch-through valve (29) and for operating the clutches (22,23). The clutches (22,23) are arranged to separate the further hydraulic motors (20,21) from the respective driving wheels (30,31) when the connection of such motors (20,21) to the main ducts (7,8) is interrupted. <IMAGE>
Patent GB-2003261-A (GB)
Title: A sub-calibre rifle- cartridge
IPC: F42B14/06
Filed: 1978-08-22
Abstract: A sub-calibre rifle cartridge having a drive base 4 a projectile 1 and a plastics jacket 2 enclosing the projectile with a number of longitudinal preselected fracture lines 2b. The jacket being arranged to start to spread open at the nose on firing and during travel along the barrel and to spread fully open after leaving the muzzle. Connection with the drive base being by an interlocking arrangement 6 which disconnects when the segments of the jacket have spread 30 DEG . Torque is transmitted to the projectile from the base by engagement of a tang 4d in a slot 1a. <IMAGE>
Patent GB-2010690-A (GB)
Title: Pressure filter
IPC: B01D33/04
Filed: 1978-11-15
Abstract: Pressure filter for dewatering sludges, for example sewage sludges, has two endless filter belts 1, 6 between which the sludge is pressed after initial gravity filtration where belt 1 runs over sieve 2. To prevent the exhausted water from being reabsorbed by the sludge layer, at least one additional large roller 13 wrapped by the belts from below is disposed between the large head roller 11 and the small pressure rollers 14, 15 and between the or each two large rollers there is disposed at least one smaller intermediate roller 12 wrapped by the belts from above. The large rollers and the smaller intermediate roller are arranged so that the angle of wrap for each of the large rollers is at least 180 DEG  and so that only short, substantially vertical free sections of the belts remain between the large rollers and the smaller intermediate roller. Rollers 11, 13 have axial surface grooves possibly formed in detachable covers, for drainage of water sideways. <IMAGE>
Patent GB-2008450-A (GB)
Title: Process for the manufacture of an armour-piercing projectile
IPC: B22F3/20
Filed: 1978-11-21
Abstract: A process for making a projectile body which is suitable both for fighting thick armour plates and for fighting targets which consist of several thin plates comprises hardening a body of sintered tungsten alloy, by reducing the cross-section, to an HV10 hardness of at least 420 kp/mm<2> and at the same time forming the globulitic tungsten grains of the sintered alloy into elongate bodies.
Patent GB-2010060-A (GB)
Title: Electric hot plate
IPC: F24C7/06
Filed: 1978-11-22
Abstract: An electric hot plate comprises a substantially flat, thin-walled sheet metal plate (17) provided with grooves (18) in which flattened, tubular metal sheathed heating elements (12) are received and provide a heating surface on which cooking vessels can stand. Spaced protrusions 19 formed in the grooves 18 support the elements 12 clear of the walls of the grooves to minimise heat transfer. The hot plate is stated to be self-cleaning. <IMAGE>
Patent GB-2013139-A (GB)
Title: Printing Mechanism
IPC: B41J1/44
Filed: 1978-12-13
Abstract: The printing mechanism comprises a printing wheel (11) having a base (22) from whose periphery extend a plurality of angularly spaced apart spring arms (13) each of which is provided with a character (12), the printing wheel (11) having a substantially cylindrical space (22b) within which is mounted at least part of a motor (15) which is arranged to rotate the printing wheel (11) to desired angular positions, the said cylindrical space (22b) being defined by the base (22) alone or by a base (22) and spring arms (13) together. Annular space (22a) may be defined by the arms (13) alone or arms (13) and base (22) together. <IMAGE>
Patent GB-2011415-A (GB)
Title: Process for the Production of Thiophosphoric Acid Esters
IPC: A01N57/16
Filed: 1978-12-20
Abstract: Compounds of formula   <IMAGE> (R1 is alkyl, alkenyl, alkoxyalkyl or alkylthioalkyl; R2 is H, alkyl or alkenyl; R3 and R4 are each alkyl) are prepared by reacting an O,O-dialkyl thiophosphoric acid halide with a substituted hydroxypyrimidine in a two-step reaction. In step (a) the hydroxypyrimidine is converted with the aid of sodium hydroxide and in the presence of a hydrocarbon solvent and a phase-transfer catalyst into the sodium salt while drying the reaction mixture by azeotropically removing water. In step (b) condensation of this sodium salt with the dialkyl thiophosphoric halide is carried out at room temperature to about 100 DEG C. The condensation step may be accelerated by addition of 4-bis(C1 to C4alkyl)aminopyridine as catalyst. A product of excellent quality and yield is obtained, and has insecticidal and acaricidal activity.