baber/WOPTO huggingface dataset:
Patent GB-1477643-A (GB)
Title: Cardiac valve
IPC: A61F2/24
Filed: 1974-10-16
Abstract: 1477643 Heart valves NATIONAL RESEARCH DEVELOPMENT CORP 16 Oct 1974 [24 Oct 1973] 49570/73 Heading A5R [Also, in Division F2] An atrio-veritricular prosthetic cardiac valve comprises three lobes 7, each of which provides internally a hollow 8 and externally a smooth surface convex in both the axial and circumferential directions, and three cusps 12 sealed to the lobes. When the valve is open the cusps are deformed outwardly towards the inner walls of the lobes and their edges take up a position shown at 13' leaving a gap 14. Flow of blood through the valve forms a vortex within each lobe which assists in the closing of the valve in which position the cusps lie against each other. The valve is made of silicone or segmented polyurethane rubber and polyethylene phthalate fabric. A suture ring is provided made of "terylene" velour. The valve may have one, two, three or more lobes and cusps.
Patent GB-1130610-A (GB)
Title: Preparation of photographic emulsions
Inventor: DERSCH FRITZ
IPC: G03C1/047
Filed: 1965-11-23
Abstract: 1,130,610. Preparing silver halide emulsions. GENERAL ANILINE & FILM CORP. Nov. 23, 1965 [Nov. 27, 1964], No. 49749/65. Heading G2C. Silver halide emulsions are obtained by mixing an aqueous solution of a water-soluble silver salt and an aqueous solution of one or more water-soluble halides in the presence of an aqueous solution of a water-soluble polyoxyalkylenated derivative of gelatine, flocculating the resulting mixture and separating the flocculate. The flocculate may be washed and redispersed in gelatine. The polyoxyalkylented derivatives of gelatine are obtained by reacting gelatine with an alkylene or substituted alkylene oxide e.g. ethylene oxide, propylene oxide, butylene oxide, styrene oxide and cyclohexene oxide. The emulsion may be digestedbefore flocculation and flocculated by simply lowering pH 1  for example with acid ammonium sulphate, or by adding flocculating agents e.g. alkyl sulphonic acids or poly (styrene sulphonic acid).
Patent GB-1170076-A (GB)
Title: A Device for preventing the use of a Telephone when Dialling a Number which begins with the Digit 0
Inventor: STATHACOPOULOS CHRISTOS ANTONI
IPC: H04M1/677
Filed: 1966-11-07
Abstract: 1,170,076. Impulse transmitters. C. A. STATHACOPOULOS. 7 Nov., 1966 [26 Nov., 1965], No. 49756/66. Heading H4K. In an impulse transmitter provided with two auxiliary, dial-operated spring sets, one set is operated during wind-up in the event that the initial digit " 0 " is dialled so as to cause the impulse contacts to be short circuited until the handset is replaced, while the other set is operated during the return-motion so as to cause the first set to be inoperative during subsequent operations of the dial in all cases where the first digit dialled is other than a " 0." Each spring set controls a self-holding relay which performs the necessary switching to provide the above features. The first set's relay additionally short circuits the handset when it is operative. A lockable three-pole switch is provided for (a) short circuiting the relays, whereby an authorized caller may make a call having any initial digit, (b) short circuiting the impulse contacts, whereby no outgoing calls can be made or (c) providing the " 0 "-calls barred feature.
Patent GB-1333233-A (GB)
Title: Rotor position selection mechanism
IPC: B41J7/48
Filed: 1970-10-20
Abstract: 1333233 Selective printing CIBA-GEIGY AG 20 Oct 1970 [23 Oct 1969] 49832/70 Heading B6F A type or display wheel 2 is arrested in a selected position by a catch 20 which is only permitted to fall into an aperture 7 when the preset arrangement of feelers 4a ... 4f corresponds to an arrangement of recesses a ... f representing the desired character, whereby as the wheel 2 rotates by frictional engagement with a continuously rotating shaft 1, all the feelers fall simultaneously into their respective recesses to permit the catch 20 to fall into the corresponding aperture 7. The recesses a ... f may be arranged on either side of a radial line A ... G for each character code, or may lie on the radial line and lie on either side of tangential lines according to the code (Fig. 2b, not shown). A plurality of wheels 2 may be set up in turn to set up a line of text by means of electromagnetically actuated levers (12a ... 12f, Fig. 1) carried along the line by a screw-driven carriage (11). The carriage (11) may carry a restoring element (19) which by displacing the feelers from their recesses also lifts the catch 20 and permits the wheel to rotate. The wheels 2 may carry type characters and indicator characters.
Patent GB-1487332-A (GB)
Title: Stirling cycle heat engines
IPC: F02G1/057
Filed: 1975-11-12
Abstract: 1487332 Stirling cycle engines UNITED KINGDOM ATOMIC ENERGY AUTHORITY 12 Nov 1975 [19 Nov 1974] 50135/74 Addition to 1329567 Heading F1S [Also in  Division F4] In a Stirling cycle heat engine having a gas displacement system comprising a conduit 13 containing a liquid column coupled at its respective ends to heat absorbing and heat rejecting chambers 14, 15, the liquid column being capable of oscillating to cause alternating variations in the gas volumes in the heat absorbing and heat rejecting chambers, connection to a liquid reservoir 12 is provided for permitting a phase difference in the movement of the ends of the liquid column appropriate for the gas displacement between the heat absorbing and heat rejecting chambers to take place in accordance with the Stirling cycle, the gas displacement system together with the heat absorbing and heat rejecting chambers being mounted for oscillation as a whole (about the point A) under the influence of means separate from the liquid column and responsive to changes in pressure in the working gas. In a modification (not shown), a reservoir or output tube corresponding to the tube 12 is connected directly into the displacer tube 11. With this modification the bellows may be located at the inner end of the reservoir or output tube. It is practicable and desirable to operate the engines at a frequency higher than the resonant frequency of the displacer liquid. The bellows 18 could be sealed from the liquid column and connected to the gas above the liquid.
Patent GB-1039116-A (GB)
Title: New phthalocyanine dyestuffs and process for their manufacture
IPC: C08K5/43
Filed: 1964-12-09
Abstract: The invention comprises phthalocyanine dyes containing at least one sulphonic acid amide group in which the amide nitrogen carries the residue of a nitrodiphenylamine free from sulphic acid groups but that contains a sulphonamide group, especially those dyes containing a grouping <FORM:1039116/C4-C5/1> wherein n is 1-6 and X is an aryl, cycloakyl, aralkyl or alkyl residue.  The dyes may be obtained by condensing phthalocyanine sulphochlorides with the appropriate nitrodiphenylamine, and if desired, with ammonia or other amines or by condensing phthalocyanine sulphonic acid - N - aminophenylamides with halogen-containing nitrobenzene sulphonamides. The phthalocyamines may be metal-free or contain Co,Ni or, esplcially, Cu.  The sulphonamide groupings may be attached in the 3- or 4-positions. The dyes are especially suitable for the spin-dyeing of cellulose acetate.  Examples are given and many suitable starting materials are listed.
Patent GB-1315380-A (GB)
Title: Timepiece escapement
IPC: G04B15/08
Filed: 1970-10-22
Abstract: 1315380 Timepiece escapements LES FABRIQUES D'ASSORTIMENTS R'EUNIES SA 22 Oct 1970 [22 Oct 1969] 50225/70 Heading G3T In an escapement having a lever 6 which carries a guard pin or dart 12 to co-operate with a roller 13 on a roller table 11 of a balance, the dart 12 and the roller 13 are magnetized so as to repel the lever against a corresponding one of banking pins 8, 9. The roller 13 is provided with a recess 14 which has no defined magnetic polarity so that repulsion is substantially zero while the dart passes therethrough. The lever 6 also carries a fork 7, which co-operates with an impulse pin 10 on the roller table 11, and pallets 5 which engage teeth 2 of an escape wheel 1. The arrangement is stated to eliminate the need for draw action of the lever 6 and recoil of the wheel 1, and the faces 5a of the pallets are tangential to a circle about the axis of rotation of the lever.
Patent GB-1511810-A (GB)
Title: Process for dyeing sheet-like structures
IPC: D06P3/60
Filed: 1976-12-02
Abstract: Textile sheet materials consisting wholly or partly of cellulose, natural polyamide or glass fibres are dyed and/or printed with disperse dyes by heat transfer or thermofixing following a pretreatment. The pretreatment is by impregnation with an aqueous liquor that contains a disperse dye solvent comprising a water-miscible organic cellulose-swelling agent with a boiling point of above 140 DEG C, a crosslinking agent comprising a reactant resin, and a disperse-dyeable high polymer that is fixable to the fibre materials mentioned, and subsequent drying. This pretreatment results in dyeings and prints having improved rub and/or wet fastness properties, a higher colour yield and improved handle, while the odour nuisance is minimal and application is simplified.
Patent GB-1408278-A (GB)
Title: Automatic on-off sprinkler head
IPC: F16K31/00
Filed: 1972-11-06
Abstract: 1408278 Fire fighting sprinkler GENERAL INDUSTRIES INC 6 Nov 1972 51054/72 Heading A5A An automatic "on-off" sprinkler 10 comprises housing 12 divided by a movable partition 14 into a primary chamber 16 and control chamber 18, fluid inlet and outlet ports 34, 38 in chamber 16, a valve element 46 connected to partition 14 for controlling outlet 38, a spring 21 acting on 14 to urge 46 to close 38, a heatresponsibe device 22 to open and close control valve 20 at predetermined temperatures, the valve 20 when open causing a pressure loss in chamber 18 which allows the excess pressure in chamber 16 to move 46 against the bias of 21 and open the sprinkler, and a passage 74 connecting chambers 16 with chamber 18 and closed by a unidirectional flap valve member 23 which allows variations between the pressure in the two chambers, caused by small fluctuations in fluid line pressure to be equalled out. The flap valve 23 comprises an annulus of resilient material. In a second embodiment (Fig 2 not shown) the partition (214) separating the primary chamber (216) from control chamber (218) includes a flexible rubber diaphragm (260) with unidirectional valve (223) closing passage (290).
Patent GB-1434256-A (GB)
Title: Machine for automatically balancing rotary workpieces
IPC: G01M1/30
Filed: 1973-11-02
Abstract: 1434256 Balancing; drilling; milling REGIE NATIONALE DES USINES RENAULT 2 Nov 1973 [3 Nov 1972] 51117/73 Headings B3B B3C and B3K An automatic machine for balancing crankshafts or other rotary workpieces comprises a measuring station 1 and machining stations 2, 3 disposed on a common circle, and a central rotary unit having a vertical rotary axis disposed at the centre of the circle for simultaneously transferring all the workpieces from one station to another. As shown, three crankshafts can be operated on simultaneously, raised and indexed around through 120 degrees to the next station, the transfer unit (6) Fig. 2 (not shown) including arms 7 provided with forked ends for carrying the crankshafts by its two intermediate journals. Drilling or milling units 9 at the first machining station 2 operate on the endmost balance weights while similar units operate on the central balance weights. Each machining unit 9 operates twice on the balance weight, the second operation being performed after the crankshaft has been turned a few degrees on its bearings by means of a piston and cylinder unit (14). The measuring station 1 is a dynamic balancing machine and serves to measure the want-of-balance of crankshafts inserted into the machine and the want-of-balance of the crankshafts after they have been machined at the stations 2 and 3 in order to accept, reject or pass them on for another pass through the stations 2 and 3.
Patent GB-1199465-A (GB)
Title: Cylinder Head Gasket.
Inventor: TEUCHER SIEGFRIED
IPC: F16J15/12
Filed: 1967-11-09
Abstract: 1,199,465. Joint-making packing. GOETZEWERKE FRIEDRICH GOETZE A.G. 9 Nov., 1967 [14 Nov., 1966], No. 51140/67. Heading F2B. An internal combustion engine cylinder head gasket 1 comprises strips 4 for surrounding the coolant or lubricant ducts 5 and a sealing-ring 9 for surrounding the or each combustion chamber and comprising a casing element 13 of C-shaped cross-section enclosing a spring 16. The strips 4 are formed of soft material integrally connected by parts 6 and reinforced by a metal support 12. Lugs 10 on the soft material part 11 locate the metal ring 9 and the gasket is centred by edges 7 bearing against sleeves of the bolt holes 3. The gasket areas 17 cover core holes in the cylinder block.
Patent GB-1285379-A (GB)
Title: Improvements in and relating to ceramic compositions
Inventor: MATSUOKA MICHIO
IPC: H01C7/112
Filed: 1969-10-22
Abstract: 1285379 Ceramics MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 Oct 1969 [22 Oct 1968] 51689/69 Heading C1J A ceramic composition consists essentially (defined) of ZnO and, in mole per cent, 0À05-10UO 2 . In addition, 0À05-8 Bi 2 O 3 , CaO or CoO can be present; or 0À05-8 of Bi 2 O 3  and 0À05-8 of either CaO or CoO.
Patent GB-1035740-A (GB)
Title: Improvements in vehicles adapted for the presentation of projected pictures or films
IPC: G03B17/56
Filed: 1964-12-21
Abstract: 1,035,740. Convertible vehicles. W. CORDES. Dec. 21, 1964 [Jan. 3, 1964], No. 51864/64. Heading B7B. A picture demonstration vehicle has a screen 1 carried by a roof section 2 pivoted at 3 to the vehicle. Sector-shaped side panels 4 secured to the part 2 enclose the rear of the screen so that the picture can be projected on to the rear of the screen from the projector set at an angle to the centre line of the vehicle and a reflector at the rear of the driving compartment. A hood 5 may also be provided.
Patent GB-1204896-A (GB)
Title: Improvements in or relating to data processing apparatus
Inventor: JOHNSTON ANDREW ST
IPC: G06F5/00
Filed: 1967-11-15
Abstract: 1,204,896. Code-converting. INTERNATIONAL COMPUTERS Ltd. 31 Oct., 1968 [15 Nov., 1967], No. 51897/67. Heading G4A. Input information in which the code is indicated by a code instruction record 46 is converted into a second code 32 involving a greater number of bits and a modified code instruction record 56. The input may be from magnetic tape or a card-reader and is passed to appropriate stores 38-44 which feed a conversion logic circuit 34 while the code instruction 46 is decoded at 36 so as to control the conversion logic circuit 34 and at the same time record at 56 according to the desired output code. The output register 32 may control a further magnetic tape. The record 56 may be omitted.
Patent GB-1235360-A (GB)
Title: Separating sublimation products from gases
IPC: B01D7/02
Filed: 1968-11-01
Abstract: 1,235,360. Separation of sublimed material from gases. BADISCHE ANILIN-& SODAFABRIK A.G. 1 Nov., 1968 [3 Nov., 1967], No. 51927/68. Heading BIB. [Also in Division F4] Sublimed material, e.g. phthalic anhydride, admixed in vapour form with a gas is separated from the gas by passing the mixture through inlet 1 into a casing which contains, a system of tubes through which cooling medium is circulated so that the sublimed material solidifies on the tube system and the depleted gas leaves the casing through outlet 2. Heating medium is then circulated through the tube system so that the solid sublimed material melts and the liquid flows out of the casing. During the whole operation the casing is maintained at a substantially constant temperature, which is above the melting temperature of the sublimed material, by means of heating tubes 10 on the outside of the casing the tube system 10 is denser at the lower part of the casing. The internal tube system, which rests on rods 3 held in two supporting walls 4, comprises parallel coils a, b, c, each consisting of a tube winding backwards and forwards by means of 180‹ bends. The supporting walls 4 are held loosely in rails 6. Oil may be used as heat-exchange medium for the coils. Steam may be used to heat tubes 10. The apparatus may be constructed by laying one of the walls 4 in a horizontal position, securing the rods 3 thereto, placing the coils a. b. c, in position, securing the free ends of the rods to the other wall 4, turning the construction through 90‹, and introducing it into the casing.
Patent GB-1134767-A (GB)
Title: Dentifrices containing an optical brightener
IPC: A61Q11/00
Filed: 1966-11-22
Abstract: 1,134,767. Dentifrices comprising optical brighteners. CIBA Ltd. 22 Nov., 1966 [31 Dec., 1965], No. 52196/66. Heading A5B. The whiteness of dentifrice compositions is maintained and improved by incorporating therein an optical brightener having the structure:- which is free of acid groups which confer water-solubility and in which A in each case represents a benzene ring. Preferred brighteners are those of the formula:- in which each X is H or terf.-butyl. Examples relate to toothpastes.
Patent GB-1201985-A (GB)
Title: Water repellent preservative dressing for fly fishing lines
IPC: A01K91/00
Filed: 1968-11-05
Abstract: 1,201,985. Fishing line. SOO VALLEY CO. 5 Nov., 1968 [5 Feb., 1968], No. 52263/68. Heading A1A. [Also in Divisions C4, C5 and D1] A fly fishing line comprises a filamentous core surrounded by a flexible surface layer of plasticized polyvinyl chloride, and a water-repellent preservative dressing on the surface layer comprising a non-volatile plasticizer for the polyvinyl chloride, paraffin wax, and an aluminium, calcium or magnesium soap to inhibit crystallisation of the paraffin wax. The core may be a single or multiple filament(s) of nylon, silk or "Dacron" (Registered Trade Mark), and is preferably first coated with a primer consisting of a synthetic resin solution compatible with the polyvinyl chloride plastisol.
Patent GB-1537539-A (GB)
Title: Pressure-sensitive and/or heat-sensitive recording material
IPC: C07D295/135
Filed: 1976-12-15
Abstract: 1537539 Heat sensitive colour forming materials CIBA GEIGY AG 15 Dec 1976 [17 Dec 1975] 52357/76 Heading G2C [Also in Divisions C4 and D2] A heat sensitive material comprises a colourless, or slightly coloured, azine, as a colour forming compound, and an acid developer. The azine is of Formula A -CH=N-N=CH-A in which A is an optionally substituted benzene or heterocyclic nucleus. On heating e.g. with a heated pen or laser, the materials develops yellow, orange or red colours which are fast to light. The azine and acid are in the same or separate layers, preferred acids being attapulgite clay, sillon clay and phenolformaldehyde resins. Other types of colour former may also be present.
Patent GB-1503790-A (GB)
Title: Tape spool
IPC: B65H75/18
Filed: 1975-12-22
Abstract: 1503790 Tape spools KORES HOLDING ZUG AG 22 Dec 1975 52423/75 Heading B8M In order to engage and locate the centring stud 4 of a typewriter within a bore of a typewriter ribbon spool and to drive the spool by means of typewriter driving pin(s) 2 the drum part 1 of the spool has three planar flexible tongues 5 which engage the stud 4 and remain planar if unstressed and the bore of the drum part 1 is made as great as the peripheral diameter of the path of the revolution of the typewriter driver pin(s) 2. The radially innermost portions of the tongues 5 are tangential to the circle within and coaxial with the drum part 1. The tongues 5 bend when a larger diameter stud 4 is encountered. The pin(s) engage(s) the tongue(s) to drive the spool. The tongues 5 make angles of 60 degrees between them, and are made flush with the end faces of the spool to facilitate stacking of spools. The flexibility of the tongues is promoted by providing grooves or openings 7 in the tongues 5. Catch hooks 6 on the drum part 1 are provided to attach typewriter ribbon. The spool is made by injection moulding or die casting.
Patent GB-1280806-A (GB)
Title: Method and apparatus for actuating a sub-surface reciprocating well pump
Inventor: LAKE JACK TAIT
IPC: F04B9/105
Filed: 1970-11-04
Abstract: 1280806 Hydraulic reciprocating drive PUMP SPECIALTIES Inc 4 Nov 1970 [ 4 Nov 1969] 52507/70 Heading F1A An hydraulically operated reciprocating drive for a well pump comprises a pump actuating member 32 lifted from the bottom stroke position to a mid-stroke position by cylinders 28 constantly pressurized from an accumulator 36 and from the mid-stroke position to the top stroke position by liquid supplied from a pump 58 to the lower ends of cylinders 40. At the top stroke position a stop 86 on a rod 84 is lifted by a part movable with the member 32. This changes over a pilot valve 70 and consequently a main control valve 54, thereby directing the output from pump 58 to the upper ends of cylinders 40 while connecting the lower ends to a tank 62. Initially the member 32 descends by gravity, forcing liquid in the cylinders 28 back into the accumulator 36. At mid-stroke the accumulator pressure prevents further descent under gravity and pressure builds up in the cylinders 40 to complete the downward stroke. Adjustable throttles 82, 91 in the exhaust lines 60, 82 control the stroke speed and valve changeover speed.
Patent GB-1160037-A (GB)
Title: Improvements in or relating to a Cassette Intended to Receive a Spool Bearing an Elongated Body such as a Magnetic Tape or Cinematographic Film
IPC: G11B23/107
Filed: 1967-11-20
Abstract: 1,160,037. Cassettes. PAILLARD S.A. 20 Nov., 1967 [1 Dec., 1966], No. 52632/67. Heading G5R. [Also in Division G2] A film or tape cassette comprises a plastics body 1 having an open-sided seating 2 into which fits a spool 4, there being an exit channel 6 to which the film F is guided by a spring- loaded U-shaped wire member 7 when the spool is rotated by the engagement of a friction wheel 11 with the outer convolution of the film coil through an opening 8 in the body. Wheel 11 is belt-driven and is carried on a hinged arm 12. Re-wind is by means of a friction pulley 15 engaging the spool rim through a further opening 9. The spool is retained in seating 2 by an extension 5. As shown, spool 4 rotates on a hollow fixed pivot 3, but a rotatable pivot may be used, and re-wind may be by rotation of such a pivot.
Patent GB-1488138-A (GB)
Title: Plant for the production of steel in converters
IPC: C21C5/46
Filed: 1974-12-06
Abstract: 1488138 Mobile converter steelmaking installation VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE-ALPINE MONTAN AG 6 Dec 1974 [18 Dec 1973] 52883/74 Heading C7D [Also in Division B7]  In a steelmaking installation comprising mobile converters circulating between separate charging, refining, discharging and possibly relining stations the converters are each supported by trunnions on an independent structure which is vertically movable by integral hydraulic cylinders relative to the carriage which transports it. The carriage travels on rollers journalled in it along paths connecting the various stations. As particularly described support structure 1 with trunnion bearings 2 has in its base a recess 3 enclosing rectangular frame 4 on which are mounted rollers 5. Located within the base are hydraulically inter-connected cylinders 7 engaging frame 4, so that the structure 1, which is normally supported on feet 9, may be raised for transit. In an alternative embodiment Fig. 4, the structure 1 has longitudinal projections 10 on which are mounted cylinders 11 having pistons 12 to which bogies 13 are pivotally attached.