baber/WOPTO huggingface dataset:
Patent GB-1072408-A (GB)
Title: Improvements in or relating to optical storage elements and systems
IPC: G03C1/705
Filed: 1964-12-22
Abstract: A computer memory bit comprises a layer of zinc sulpho-selenide e.g. activated by copper and chlorine so that at liquid nitrogen temperatures the bit is switched to a state A by radiation of one wavelength lambda1, in which state it responds to radiation of a second wavelength lambda2 by emitting radiation of a third wavelength lambda3, while radiation of a fourth wavelength, lambda4, switches the bit to a state B in which it is not responsive to radiation of wavelength lambda2. Binary information may then be read into and out of the bit solely by optical means, the interrogation by lambda2 being non-destructive of the state A or B of the bit.  The bit, if in state A, also emits radiation of a fifth wavelength, lambda5, upon irradiation by radiation of wavelength lambda4. The bit may be mounted on a plastic or aluminium base, and used in a memory sheet or tape.  The output radiation lambda3 may be detected by a photo-conductive layer sensitive only to lambda3. missing page 272
Patent GB-1201405-A (GB)
Title: Process for preparation of sulphonic acids
IPC: C07C303/14
Filed: 1968-11-04
Abstract: 1,201,405. Sulphonating higher paraffins. NIPPON SHOKUBAI KAGAKU KOGYO CO. Ltd. 4 Nov., 1968 [4 Nov., 1967], No. 52129/68. Heading C2C. Predominantly mono-sulphonic acids are obtained by reacting at 17-37 C. in a homogeneous liquid phase, a C 10-30  straight chain paraffin hydrocarbon with SO 2  and O 2 , the concentration of SO 2 , in the liquid phase being 7-23% by weight, to a conversion of paraffin of 1-7%, and treating the reaction mixture so formed with water or a water-containing solvent in an amount providing 1-20% by weight of water based on the amount of the reaction mixture. Batchwise and continuous methods are described. Higher proportions of di- and tri-sulphonic acids are obtained in comparative examples outside the above conditions.
Patent GB-1278574-A (GB)
Title: Improvements relating to lifting gear
IPC: B66C1/48
Filed: 1968-11-05
Abstract: 1278574 Grippers for lifting coils of sheet material JOHN SUMMERS & SONS Ltd and R G RUSSELL 4 Nov 1969 [5 Nov 1968] 52354/68 Heading B8H In a lifting tongs in which a movable jaw 11, Fig. 1, is urged towards a fixed jaw 10 by a toggle linkage 14, 15 the movable jaw is retractable above a plate 36 by a disengageable coupling 54 which retracts the jaw when a load is to be released and releases the jaw in its extended position when a load is to be raised. The coupling mechanism, described in British Specification 642,100, rotates a rod 56 with a T-shaped head 57 so that the jaw 11 is alternately engaged and disengaged on alternate lifts. A cross-link 34 is pivoted to the lower toggle links 18, 20; 23, 26. A spring-loaded plunger 60 prevents rotation of the rod 56 whilst a cam-follower 62 is engaged by a cam 61. Fig. 3 shows an embodiment in which the jaws 81 slides towards the fixed jaw 80 and is retracted by sliding upwards on a pin 90 which passes through a slot 91 in the jaw. Alternatively the jaw may be fixed to a shank 89 and be retracted by pivoting the shank about a pin 87. A similar coupling is provided between the shackle 45 and the retractable jaw 81.
Patent GB-1256120-A (GB)
Title: Roller
IPC: C10M129/00
Filed: 1969-10-27
Abstract: 1,256,120. Rollers. DAYCO CORP. 27 Oct., 1969 [9 Jan., 1969], No. 52532/69. Heading F2U. A printing roller comprises at least one annular sleeve 22 gripped by an expandable core passing therethrough and comprising a resilient cylindrical member 21 with a conical bore 30 engaged by a rigid inner member 35 (e.g. of steel) urged axially (e.g. by a nut 42) into the member 21 to expand the latter. The roller may be driven via a gear 45. The sleeve(s) 22 may each comprise an outer part of rubber integral with cords (52) adjacent the inner surface, Fig. 5 (not shown).
Patent GB-1496526-A (GB)
Title: Inking mechanism for printing machines
IPC: B41F33/00
Filed: 1974-12-05
Abstract: 1496526 Cooling printing machines ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG and GRAPHO METRONIC GmbH & CO 5 Dec 1974 [5 Dec 1973] 52658/74 Heading F4U [Also in Division B6] An inking arrangement for a printing machine includes a fountain roller 9 and at least one axially reciprocated roller 3, 4, 7, these rollers being heated or cooled. A temperature related to the temperature of the fountain roller and a temperature related to that of the reciprocated roller are detected, and means are provided to control the heating or cooling of these rollers. The heating or cooling may be by circulating fluid through the rollers, when the temperatures detected may be the temperature of the return flow of the circulating fluid from the respective roller. Alternatively, the surface temperature of the rollers may be directly measured. In a first embodiment (Fig. 2, not shown), fluid is circulated through the rollers from a single source, the roller 9 being in parallel with rollers 3, 4, 7. In a second embodiment (Fig. 3, not shown), separate circulations are provided for roller 9 and rollers 3, 4, 7, respectively. In both embodiments, the output of tachogenerator 15 driven from the printing cylinder 13 can control the fluid circulation to stop circulation when the machine is stopped, and start circulation when the machine starts. Separate circuits may be provided for hot and cold fluid for fast heating or cooling.
Patent GB-1342378-A (GB)
Title: Apparatus transormable into an easychair or into a stretcher
IPC: A61G7/10
Filed: 1971-11-15
Abstract: 1342378 Convertible stretcher - chair G J F SELE 15 Nov 1971 [18 Nov 1970] 52918/71 Heading A4J [Also in Divisions B7 and B8] A stretcher which is convertible into a chair by providing three pivotally inter-connected sections 5, 6, 7, the central one 5 of which is rotatably mounted on the upper end of a telescopic column, is adapted for use as a bed-lift by providing slides 9, 10 at the ends of the outer sections 6, 7, the slides being simultaneously movable transversely off the stretcher into a position in which they project from the stretcher, each slide incorporating couplings 20 which may be detachably engaged with connectors in the opposed edges of a cloth 21 which is adapted to cover the stretcher such that a patient supported on the cloth can be transferred between a bed and the stretcher. The slides are simultaneously moved by a pair of oppositely acting double-acting hydraulic jacks acting through a cable trained around pulleys.
Patent GB-1397890-A (GB)
Title: Electromagnetic actuator
IPC: H02K41/035
Filed: 1973-11-15
Abstract: 1397890 Linear motors INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [19 Dec 1972] 52953/73 Heading H2A An electromagnetic actuator comprises a magnetic field source 4 having two elongate parallel surfaces, the direction 16 of the magnetic field being perpendicular to the two surfaces, an elongate member 2 of magnetic material disposed parallel to but spaced from the source 4, a coil 8 mounted around and movable relative to the member 2 and a flux return member 6 completing the magnetic circuit of the source 4. The source 4 may comprise a permanent magnet or a coil or both. The coil 8 is D.C. energized. A core 12, Fig. 4 (not shown), fills that part of the coil 8 not occupied by the member 2 and is connected to a core 10 in rolling or sliding engagement with the stationary part of the actuator.
Patent GB-1357178-A (GB)
Title: Circuits for electronic ac wattmeters
IPC: G01R21/10
Filed: 1971-11-17
Abstract: 1357178 Watt meter GENERAL ELECTRIC CO Ltd 15 Nov 1972 [17 Nov 1971] 53378/71 Heading G1U A watt meter using the "quarter squares" principle applies, in alternate half-cycles of the supply voltage V1, V2, firstly (when V1 is positive) the sum of the supply voltage VI, V2 and a voltage proportional to a load current I1, I2 developed across a resistor R4 and secondly the difference between the supply voltage V1, V2 and a voltage proportional to the load current I1, 12 developed across an equal resistor R3, to a full-wave rectifier FW having a square-law current load ladder on its D. C. side, and the average current flowing on the A. C. side of the rectifier is indicated on a meter M, damped by capacitors C3, C4. Selection of resistor R3 or R4 is effected by diodes D6, D7 respectively. The circuit includes various protective arrangements including (a) two Zener-diode/resistor combinations D4, R5 and D5, R6 which, when the circuit is operating within its normal range operate singly, in alternate half-cycles of the supply voltage, each combination effectively adding to the main square-law load ladder, but which, when the load current becomes excessive both break down to limit the voltage across the divider R3, R4, (b) Zener-diodes D1 and D2 which protect the D. C. blocking capacitor C1, and (c) a voltage dependent resistor VDR which shorts out voltage spikes.
Patent GB-538833-A (GB)
Abstract: 538,833. Totalizators. HANDLEY, J., and UNION TOTALISATOR CO., Ltd. Feb. 10, 1940, No. 2626. [Class 40 (i)] In a totalizator system, a pulse generating unit P sends in each rotation a testing impulse from springs 24 to actuate a relay CR in all control units in which the position of the switch CS does not correspond with that of the distant aggregator (not shown), an indicator-driving pulse from springs 26 to energize relays IR and so step on the indicators associated with control units in which the relay CR has been operated and a control-switch driving pulse from springs 25. Operation of the control-switch driving- magnet releases CR. In rotary drum indicators such as DI the received impulse operates a clutch magnet which is held locally until the step has been completed. In a flap-type indicator such as FI the effect of the starting impulse is prolonged by means of permanently energized long contacts on a switch 31. When the indicators are to be re-set, the aggregator is returned to zero and the switch 33 is operated temporarily to energize relays BR in each control circuit. These relays lock up and the control switches then move to position B and the indicators show blanks. When the control switch steps to position 1, BR is released and the indicators subsequently show zeros instead of blanks with the aggregator in its zero position.
Patent GB-1096473-A (GB)
Title: Vibrator
IPC: E04G21/08
Filed: 1965-12-21
Abstract: 1,096,473. Compacting concrete. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. Dec. 21, 1965 [Jan. 16, 1965], No. 54092/65. Heading B1C. [Also in Division F2] A vibrator for the compaction of surface concrete comprises a sealed casing 1 for a central motor 5 driving out-of-balance weights 10 .. 13, the supply for the motor being effected through a central T-connection 14. In the preferred embodiment, an electric motor having its shaft supported in bearings 8, 9 and its supply cable 17 enclosed in a protective hose 18 is employed, the hose being clamped by a ring 20 to a nozzle 15 screwed into the connection 14,
Patent GB-1204125-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: DEIGHTON THOMAS
IPC: G21C5/06
Filed: 1966-12-02
Abstract: 1,204,125. Fuel elements. BABCOCK & WILCOX Ltd. 4 Dec., 1967 [2 Dec., 1966], No. 54198/66. Heading G6C. In a nuclear reactor, the vertical fuel pin assemblies are subjected to the lifting thrust of the upward flowing coolant. The assemblies are retained in position by a releasable lock in the base. The fireclay leg 14, of the fuel assembly framework rests in the bore 16 of the supporting base 17. The balls 20 are urged from the hole 19 into the recesses 18 by the rod 22 slidable in 14. The balls in this position, lock the assembly to the base 17. To release the assembly, the rod 22 is raised out of engagement with the balls which return to the hole 19. The lips 21 prevent the escape of each ball from the leg 14.
Patent GB-1362103-A (GB)
Title: Catch gear for fishing vessels
IPC: A01K73/045
Filed: 1972-11-24
Abstract: 1362103 Otter boards WESER AG 24 Nov 1972 [24 Nov 1971] 54433/72 Heading A1A Catch gear for fishing vessels with stern chutes includes two otter boards which are characterised by having winding drums onto which the two bridles connecting each otter board to the catch net can be winched using a disconnectable power source. In a preferred embodiment, each of the otter boards 3, 4 has two winch drums 14, 15 on the inside face each having a drive system (not shown). The drums are supported on brackets 18 which also serve to protect the drums. Considering otter board 4 only, in operation the trawl warp 2 is secured as normal while each of the bridles 7, 8 is passed through one of the holes 16, over a roller and onto drums 14, 15 respectively. When the net has been hauled in and the otter boards are lached firmly to the gallows, the power can be connected to the drums on the otter boards to enable the bridles to be winched in. The power can be hydraulic with plug in connection or mechanical using for example flexible shafts with detachable connection. When shooting the net, the procedure is reversed. The gear may include additional pennants 10, 11 connecting the otter boards with the headlines 12, 13. These pennants are detachable at the otter board end and by their use with auxiliary lines and the fishing net winch facilitate hauling in and shooting the net.
Patent GB-1030229-A (GB)
Title: Improvements relating to gyratory crushers
IPC: B02C2/04
Filed: 1962-11-14
Abstract: The subject matter of the Specification is the same as that of Specification 1,030,226 but the claims are concerned with the springs which hold the support ring in contact with the frame and the springs which apply a releasable and yielding upward thrust to the crushing bowl.
Patent GB-1090099-A (GB)
Title: Improvements in the hot rolling of steel
Inventor: LANDQUIST JAN
IPC: C10M173/00
Filed: 1965-12-24
Abstract: A method of hot rolling steel, in which a coolant, comprising water, mixed with a lubricant consisting of a salt solution, an organic lubricant in emulsion, or a solid lubricant in a dispersion with a particle size of about 1m , is fed to the work rolls or pass, and the mixture is then cleaned and recirculated to the rolls or gap.  The coolant may consist of a zinc chloride solution, or an organic lubricant containing emulsifying agents, mineral oils, possibly vegetable oils with considerable quantities of unsaturated fatty acids, and possibly other additives, or it may be a dispersion of graphite or molybdenum disulphide or both. The amount of lubricant in the mixture may be between 1 and 20% weight.
Patent GB-1375717-A (GB)
IPC: C09K8/42
Filed: 1971-11-26
Abstract: 1375717 Unsaturated polyester emulsions WOODS RESEARCH & DEVELOPMENT CORP 26 Nov 1971 55030/71 Heading C3P [Also in Division E1] A water-in-oil settable emulsion is prepared by (a) forming a fluid comprising an unsaturated polyester in a solvent of polymerizable monomer, and a catalyst promoter therefor mixed thoroughly therewith; (b) forming a fluid comprising water having a non-ionic colloidal suspension agent and a catalyst for the polymerizable component thoroughly admixed therein; and (c) thoroughly admixing in an agitated mixing zone the two fluids to form the settable water-in-oil emulsion. In the examples waterin-oil emulsions are prepared from water, hydroxyethyl cellulose, hydrogen peroxide, methyl ketone, an unsaturated polyester resin, tertiary butyl hydroquinone in 2-methoxy ethanol, cobalt octoate in 2-methoxy ethanol, dimethylaniline, a ketone peroxide, acetylacetone peroxide, methyl ethyl ketone peroxide and methyl tertiary butyl hydroquinone. Cavities in the earth are filled with the emulsions and set in order to seal the cavity.
Patent GB-1416040-A (GB)
Title: Proces for the preparation of 3-mono-alkyl and 3,6-dialkyl -resorcylic esters
IPC: C07C/
Filed: 1972-11-29
Abstract: 1416040 Resorcylic esters PFW BEHEER BV 26 Nov 1973 [29 Nov 1972 22 June 1973] 55067/72 and 29647/73 Heading C2C Compounds of the formula where R<SP>1</SP> is H or alkyl of up to 3 carbon atoms, R<SP>2</SP> is alkyl of up to 3 carbon atoms and R<SP>3</SP> is methyl or ethyl are prepared by reacting the corresponding dihydroresorcylic ester with an organic N-haloamide.
Patent GB-554488-A (GB)
Abstract: 554,488. Water-tube steam boilers. WILES, R. M., WILES, J. K., WILES, J. C., and WILES, I. W. July 10, 1942, No. 9643. Convention date, July 3, 1941. [Class 123 (ii)] Inclined water tubes 6 over a furnace are connected to headers 8, 9 communicating with a drum 3 through upflow and downflow connectors 4, 5 and provided with removable cover plates 10. After passing across the tubes, the gases are directed over the drum to a flue 16. The drum is provided with a perforated plate 14 between the water and steam spaces.
Patent GB-1456031-A (GB)
Title: Process for the thermal conversion of metal chlorides to metal oxides
IPC: C01G53/00
Filed: 1973-12-04
Abstract: 1456031 Conversion of metal chlorides to metal oxides METALLGESELLSCHAFT AG 4 Dec 1973 [14 Dec 1972] 56236/73 Heading C1A Metal chlorides are converted to oxides by forming a bed of the metal oxide particles at least 350 mm. deep (when static) fluidized by introducing a free-O 2 -containing gas and fuel so that the velocity of all the gases traversing the bed is determined by the equation 0À34 #<SP>0À9</SP># W G #0À56 #<SP>0À9</SP> where W G  is the velocity calculated on the cross-section of the chamber in the absence of the bed and # is the density of the metal oxide, the pressure drop across the bed being 1200-2400 mm. of water, the metal chloride being introduced at least 250 mm. above the grate, the bed temperature being between that at which the chloride reacts or the fuel ignites and that at which the oxides sinter, and withdrawing oxide granules below the entry point of the chlorides. The bed may be kept at a substantially constant level and at 800-1100‹ C. The feed may be a used pickle bath. When Fe 2 O 3  is the product W G  may be 1À5-2À5 m/sec., the bed height 350-750 mm. and its temperature 800‹ C. The effluent gas may be passed through a cyclone to remove fine particles, which may be re-cycled to the bed, then through a venturi scrubber in contact with the feed liquor and finally through a washer to absorb HCl. NiO is also exemplified.
Patent GB-1111480-A (GB)
Title: Improvements in or relating to a device for fastening the end of a film or tape on a spool
IPC: G11B15/67
Filed: 1966-12-20
Abstract: 1,111,480. Tape reels. PAILLARD S.A. 20 Dec., 1966 [6 Jan., 1966], No. 66858/66. Heading B8M. [Also in Division G2] A device for fastening the end of a film or tape to a spool with a slotted hub having a recess behind the said hub, comprising an independent housing 10 adapted to be inserted in said recess, and an arresting member 11 adapted to be fitted into said housing 10, which housing 10 has an axial slot 12 in a wall thereof permitting the insertion of the end of the film or tape to be held therein by the arresting member 11. The arresting member 11 may have a tapered end 14, and at the other end a grooved cap 15 for engaging the tapered end of the housing 10. The housing may be mounted on a plate 13 which fits into the hub recess.
Patent GB-1379036-A (GB)
Title: Rack for biological testing trays
IPC: B01L9/06
Filed: 1972-12-12
Abstract: 1379036 Rack for trays BAXTER LABORATORIES Inc 12 Dec 1972 [13 Dec 1971] 57175/72 Heading B1X A rack for a plurality of trays comprises a generally flat member having at least two bays separated by an isthmus portion of said flat member, each bay having a generally rectangular configuration and each bay having upstanding side walls and an upstanding end wall, at least the side walls having inwardly extending chelves at substantially their bottom portions of supporting the trays. "Bays" is defined as including areas enclosed on all sides. In the embodiments illustrated there are four bays. The trays to be supported may be transparent trays containing gel material for immunological testing. Trays and rack may be made of plastics.
Patent GB-1237689-A (GB)
Title: Battery charging systems
Inventor: WILLIAMS MALCOLM
IPC: H02J7/02
Filed: 1967-12-18
Abstract: 1,237,689. Battery charging systems. JOSEPH LUCAS (INDUSTRIES) Ltd. 13 Nov., 1968 [18 Dec., 1967], No. 57326/67. Heading H2H. A system for charging a battery from a D.C. source comprises an ON/OFF switching device, the ON period of which is determined by either the voltage of the source or of the battery and the OFF period of which is determined by the voltage of the battery or of the source respectively. A battery B is arranged to be charged from a D.C. source S by way of a serially connected transistor TR1 and an inductor L1. Transistors TR2, TR6 form a normal multivibrator circuit with a transistor TR4 forming a cathode follower to increase the amplification of transistor TR6. The multivibrator operates such that a winding N1 of a transformer T1 is energized when transistor TR6 is conductive. A winding N3 of the transformer T1 then biases transistor TR1 into conduction, whereby the battery B receives charging current from the source S. With the multivibrator in its alternative state with transistor TR2 conductive, the transformer T1 is de-energized and transistor TR1 non-conductive. The energy in the inductor L1 then produces a current which continues to charge the battery B but at a level lower than when the transistor TR1 is on. The ON time for the transistor TR6 and hence of the transistor TR1 is determined by the components D3, C1, R7, R8 and the voltage between the lines 11, 12, that is, the voltage of the charging source S. The ON time of the transistor TR2 and hence the OFF time of the transistor TR1 is determined by the components C2, R11, R12 and the effective impedance of a transistor TR3 which is responsive to the voltage of the lines 11, 13; that is, the voltage of the battery B; by virtue of the connection between the base; of the transistor TR3 and potentiometer RV2. Alternatively, the circuit may be arranged so that the ON time depends on the battery voltage and the OFF time on the charging source voltage. In both alternatives the ON time is inversely dependent upon the voltage and the OFF time directly dependent upon the voltage concerned. A winding N2 on the transformer T 1 ensures the reset to zero of the flux in the transformer when transistor TR1 is OFF and transistor TR5, diode D4, resistor R9 and zener diode D2 are provided for protective purposes. The resistor R9 may be temperature responsive with an opposite characteristic to that of transistor TR5.
Patent GB-1451660-A (GB)
Title: Switching unit including a drawer capable of being pulled  out of a cabinet
IPC: H05K7/14
Filed: 1973-12-14
Abstract: 1451660 Drawers INTERNATIONAL STANDARD ELECTRIC CORP 14 Dec 1973 [23 Dec 1972] 58009/73 Heading A4B [Also in Divisions E2 and H3] A switching unit includes a drawer 9 capable of being pulled out of a cabinet with a plurality of touch sensitive areas 3 on a front panel 1 attached to the drawer 9 and the front panel 1 is interchangeably retained on the drawer without screws by means of a snap catch arrangement 7, 16. When the front panel 1 is attached to the drawer 9 projections 15 engage sockets 6, pins 16 engage in holes 7 and a spring-member 17 slides into cut-outs 8 in side pieces 5 of the panel 1. The panel 1 can be removed from the drawer 9 by bending the resilient side pieces 5 which can be of plastics material outwardly to disengage the pins 16 from the holes 7. A lamp is arranged behind a transparent window 4 for illuminating a red signal plate on touching of the associated finger touch contact 3. The finger touch electrodes operate to set or switch pre-selected or programmed frequencies for broadcast and TV receivers. The finger touch areas 3 may be circular or designed as numerals with double contacts. The front panel 1 or the contact plate or cover strip 2 can be made of chromium-plated sheet metal. The front panel 1 may also be made of insulating material with the finger touch contact made from a conductive material. The drawer 9 may have a cover (not shown) and accommodates electrical parts and components (not shown).