baber/WOPTO huggingface dataset:
Patent GB-1392069-A (GB)
Title: Respiratory apparatus
IPC: A61M16/20
Filed: 1972-11-10
Abstract: 1392069 Respiratory apparatus SYNTHELABO 10 Nov 1972 [10 Nov 1971 11 Oct 1972] 52055/72 Heading A5T Respiratory apparatus comprises an air turbine pump 2 driven by an electric motor 1 and connected to a mouthpiece 19 by a pipe 5, 18 in which is located an adjustable throttling valve 8 and a flow control valve 6, means for periodically opening and closing the valve 6 being provided. The valve 6 in an electromagnetic valve and is controlled by a multivibrator 25 and switch 26 described in Specification 1392070 which allow operation of the apparatus either at a frequency determined by the respiratory rhythm of the patient or at a predetermined frequency. Oxygen may be supplied from cylinders 10 through pipe 9 containing a throttling valve 14 and electomagnetic valve 14. The air or air-oxygen mixture passes through a humidifier 15 and a heat exchanger formed by telescopic portions 18a, 18b of pipe 18, which may be of metal. The mouthpiece includes a conduit 45 which is flattened and contoured to provide a rigid mouthpiece 19 and has apertures 46 in its side wall closed by flap valves 48. A valve 47 is located within conduit 45. When the patient inhales valve 47 opens and when the patient exhales valve 47 closes but flap valves 48 open to allow exhaled air to pass to atmosphere. A pressure detector 20 is provided, A safety valve 50 is connected to pipe 5 and comprises a member of elastomeric magnetised material movable within a housing having an outlet to atmosphere and a base portion of ferromagnetic material, the member closing the outlet when air is supplied by pump 2 but being held against the base portion of the air supply ceases whereby pipe 5 is open to atmospheric air through the outlet.
Patent GB-1480922-A (GB)
Title: Fuel cell electrodes
IPC: H01M8/02
Filed: 1974-12-03
Abstract: 1480922 Fuel cell electrodes UNITED AIRCRAFT CORP 3 Dec 1974 [21 Dec 1973] 52272/74 Heading H1B A fuel cell electrode 12 comprises a gas porous portion provided with a catalytic layer 16 and a hydrophilic end portion 30. The fuel cell consists of two such electrodes 12, 14 sandwiched between plates 20, 22 provided with spaces 24, 26 for the supply of the reactant gases. Matrix material 9, 11 of asbestos cloth or fibre mat is impregnated with base electrolyte or the material may consist of organic polymers impregnated with acid electrolyte. For base electrolyte cells the electrodes are made of nickel or sintered nickel powder whilst carbon may be used for acid electrolyte cells. The catalyst is selected from platinum group metals and the ends 30, 32 of the electrodes are made hydrophilic by impregnation using materials such as tantalum, graphite, polyarylsulphone, perfluorosulphonic acid or polyphenyl sulphide. The end portions 30, 32 are impregnated with electrolyte to prevent the escape of gas through the electrodes and the wetting action of the electrolyte seals the surfaces 50, 52 and 44, 46 to prevent the escape of gas from the interior 40 to the exterior 42 of the cell.
Patent GB-524630-A (GB)
Abstract: 524,630. Accounting-machines. NATIONAL CASH REGISTER CO., Ltd. (National Cash Register Co.). Feb. 2, 1939, No. 3494. [Class 106 (i)] Totalizer-selection and machine-release. In a cash register or similar accounting- machine, the totalizer selecting-means release power-operated means to shift the selected totalizer or totalizers to operative position prior to a machine operation. The machine is provided with a single bank of totalizer-selecting and machine-release keys 11, 12, and with four rows 93-96, each of two interspersed totalizers. For purposes of totalizer-selection, the keys of the bank are divided into two interspersed groups 11, 12. Upon the depression of a key in one group, the totalizer rows remain in normal position with the first totalizer in each row in alignment with the actuators, whereas, upon the depression of a key in group 12, the rows are shifted to align the second totalizer in each row with the actuators. The power for shifting the totalizer rows is derived from a spring 26 stretched between two rotatable plates 22, 24 connected by a link 25. Clockwise rocking of the plates under the action of the spring is normally prevented by a latch 28 that is connected by a link 20 to a cam plate 18 so as to be disabled upon the depression of a key in either group. The rows of totalizers are connected in pairs by yokes 43, 44 simultaneously adjusted for totalizer-selection by cam drums 81, 82 rotated by toothed arms 79, 80 of a lever 77 pin-and-slot connected to a bell crank 68 co-axial with the plate 22. The bell crank 68 is connected to the plate 22 by a link 70 that is pivoted to the bell crank, pin-and-slot connected to the plate and provided intermediate its length with a pivot pin 71 embraced by a slotted lever 64 pivoted at 65. The connection is thus operative only when the lever 64 is fixed. Upon the depression of a key 11, a stud 73 on the key stem enters a notch 74 in the bell crank, whereby the latter is locked and the totalizer rows retained in normal position. On the other hand, depression of a key 12, by a nose 66 on a cam plate 15, locks the lever 64 and makes the link 70 effective to transmit the movement of plate 22 to the totalizer rows. The machine is released towards the end of the clockwise rocking of plates 22, 24 by means of the kind described in Specification 475,185. The plates 22, 24 are restored at the end of a machine operation by a cam 32, continued operation due to a key having been maintained depressed being prevented by a non-repeat pawl 39 co-operating with a shoulder 42 of plate 24.
Patent GB-1201466-A (GB)
Title: Preparation of organosilicon halides
Inventor: THOMAS DAVID RANDALL
IPC: C07F7/16
Filed: 1966-11-28
Abstract: 1,201,466. Organohalosilanes. MIDLAND SILICONES Ltd. 27 Nov., 1967 [28 Nov., 1966], No. 53221/66. Heading C3S. Organohalosilanes are prepared by reacting silicon with an alkyl or aryl halide at elevated temperatures in the presence of a. copper catalyst prepared by the displacement of copper from a solution of a salt thereof. The copper may be obtained by adding to aqueous cupric chloride or sulphate a finely divided metal which is higher than copper in the electrochemical series, e.g. iron filings or zinc powder. Other metals may be present in the catalyst. The silicon is preferably in powder form having particle size of 10 to 500 microns, and may be in the form of ferrosilicon.
Patent GB-1534530-A (GB)
Title: Method of sealing tubulation with preformed solder glass
IPC: C03C3/072
Filed: 1975-12-31
Abstract: 1534530 Sealing with preformed solder glass OWENS-ILLINOIS Inc 31 Dec 1975 [2 Jan 1975] 53255/75 Heading C1M A tubulation is sealed to the glass substrate of a gas dischare display device by slipping a preformed annular solder glass member over the tubulation and heating the assembly to fuze the solder and form the final seal. The solder glass may be entirely vitreous or a glass ceramic and suitable glass compositions are specified. A specified heating schedule is heating the assembly at a constant rate of 3 degrees-5 degrees/minute to a maximum of 750‹-960‹ F., holding the maximum temperature for about one hour and then cooling at the same constant rate to room temperature.
Patent GB-1518469-A (GB)
Title: Method and apparatus for manufacturing crystalline food products
IPC: A23G1/46
Filed: 1977-01-11
Abstract: 1518469 Chocolate &c DOVER CORP 11 Jan 1977 [24 Feb 1976] 53839/77 Divided out of 1518468 Heading A2B [Also in Division B1] The subject matter is identical to that of the Specification 1518468 but the claims are directed to the crystallisation apparatus.
Patent GB-1095650-A (GB)
Title: Aqueous vinylidene chloride copolymer dispersions and process for the manufacture ofcoated cellulose hydrate film
IPC: C08J7/052
Filed: 1966-12-02
Abstract: An aqueous dispersion of a vinylidene chloride copolymer contains a phenoplast and/or aminoplast in such an amount per 100 parts by weight of copolymer as results from 0.01-0.1 part of phenol and/or amine when 0.5-5 parts of a phenol and/or amine are precondensed for 15-120 seconds in acid conditions followed by further condensation in alkaline conditions with 10-50 parts of formaldehyde in 100 parts of a mixture of 17-50 parts of water with 83-50 parts of a miscible organic solvent.  The only specified copolymer is with butyl acrylate, methyl methacrylate and itaconic acid.  The condensation polymer may be obtained from phenol, cresols, bisphenol-A, urea, thiourea, melamine, guanidine or dicyandiamide in a mixture of water and tetrahydrofuran, dimethylsulphoxide, 4 - methylol - 1,3 - dioxan, 4,4-dimethyl - 1,3 - dioxan, 1,4 - dioxan, 1,4-butanediol, isopropanol, ethanol, triglycol, glycerol, glycol or diglycol.  The formadlehyde may be added as paraformaldehyde.  The solution of condensation polymer obtained is added directly to the copolymer dispersion.  The dispersions are used to coat films of regenerated cellulose hydrates.ALSO:Films of regenerated cellulose hydrates are coated with an aqueous dispersion of a vinylidene chloride copolymer also containing phenoplast and/or aminoplast in such an amount per 100 parts by weight of copolymer as results from 0.01 - 0.1 part of phenol and/or amine when 0.5 - 5 parts of an amine and/or phenol are precondensed for 15-120 seconds in acid conditions followed by further condensation in alkaline conditions with 10-50 parts of formaldehyde in a mixture of 17-50 parts of water with 83 - 50 parts of an organic solvent miscible with water in the indicated range (see Division C3).  The dispersion is applied by dip or roll coating and excess removed by an air brush or doctor knife. After drying the film is exposed for 0.1-5 seconds to a high frequency field or an infra red radiation such that the film reaches a surface temperature of 120-140 DEG C.
Patent GB-1387355-A (GB)
Title: Method of producing elastomeric polymers
IPC: C08F8/00
Filed: 1972-11-22
Abstract: 1387355 Elastomeric polymers BRIDGESTONE TIRE KK 22 Nov 1972 [22 Nov 1971] 54006/72 Headings C3B C3P and C3R Elastomeric polymers are prepared by reacting an epoxy resin with a polymer containing acid anhydride groups of general formula wherein R 1  is a trivalent group containing at least 2 carbon atoms, R<SP>2</SP> is the residue of a hydroxyl functional polymer. I is prepared by reacting a polymer having a number average M.W. 400-10,000 and containing at least 2 terminal or pendant OH groups with a tricarboxylic acid monohalide with at least one compound containing a plurality of amino and/or carboxylic acid hydrazide groups. The reaction may be carried out together with at least one aliphatic, alicyclic or aromatic compound of M.W. <400 which contains at least one acid anhydride group. I may be prepared by reacting trimellitic anhydride monohalide with polybutadiene- or polyisoprene polyol, polyethylenepolypropylene or polytetramethylene glycol and a compound selected from 3,3<SP>1</SP>-dichloro-4,4<SP>1</SP>- diaminodiphenylmethane, 4,4<SP>1</SP> - diaminodiphenyl ether, or the dihydrazides of adipic, sebacic, isophthalic or piperazine-N,N<SP>1</SP>-diacetic acid dihydrazide. The epoxy resin may be a diglycidyl ether of bisphenol A or a diglycidyl ester of phthalic acid. Uses.-Mouldings, coatings, electrical insulation.
Patent GB-1124959-A (GB)
Title: Process for determining the concentration of a substance in a liquid
IPC: G01N22/00
Filed: 1965-12-23
Abstract: 1,124,959. Microwave absorption apparatus. STAMICARBON N.V. Dec.23, 1965 [Dec.23, 1964], No.54614/65. Heading G1N. In a microwave absorption apparatus for measuring and controlling the concentration of a substance in a liquid, the liquid flows through a glass or quartz tube 16 through a microwave resonance cavity 14. A frequency modulated source, e.g. a Klystron 2, feeds microwave energy through a ferrite isolator 4, variable attenuator 5 and coupler 6 to the resonance cavity 14. Energy transmitted through this cavity passes through a variable attenuator 9 to a detector 10. The absorption is measured by comparing the output of detector 10 with that of a reference detector 8. 7 denotes a matched load and 15 is a tuning plunger. Many examples of organic liquids are given. The energy reflected from the cavity may be measured.
Patent GB-1107076-A (GB)
Title: A device for electrically insulating a railway rail from parts for securing it
Inventor: SANSON LEOPOLD STEWART
IPC: E01B9/30
Filed: 1965-12-17
Abstract: 1,107,076. Rail securing means. LOCKSPIKE Ltd. 31 Oct., 1966 [17 Dec., 1965], No. 54626/66. Divided out of 1,107,074. Heading E1G. An insulator, for use between the base of a flange-footed rail and a securing means in which the fastening member from an anchoring member bears down on the top of the rail flange, comprises an L-section insulator 11 having a first leg interposed between the rail flange and the securing means and substanti- -ally covered by a rigid layer of metal 12 and a second leg interposed between the edge of the rail flange and the anchoring member, projections 13 being provided to prevent longitudinal movement of the insulator with respect to the anchoring device. The insulating and metal portions may be secured together by adhesive, projections and depressions 14 or projections 15 and vertical channels 16. Alternatively the insulator 11 may have end flanges embracing the metal member 12.
Patent GB-1444704-A (GB)
Title: Method and apparatus for removing material from a workpiece
IPC: B23Q11/10
Filed: 1974-12-18
Abstract: 1444704 Special machining processes; cooling INTER-PROBE Inc 18 Dec 1974 [20 Dec 1973] 54827/74 Headings B3T B3K B3L and B3B [Also in Division F4] In a method of machining a workpiece of electrically conductive material 15 with a tool 19 there is provided a probe 30 the tip 31 of which is spaced and insulated from the tool and the workpiece and is positioned closer to the workpiece than the tool, relative movement is then provided between the workpiece and the tool and probe and a high voltage D.C. potential is produced between the tool and the probe whereby a continuous electrical arc is created between the tip end 31 and the workpiece. The effect of the potential and the arc is that of a coolant during the machining operation which allows but a slight increase in temperature of the tool and workpiece thereby increasing tool life and improving the surface finish. In the embodiment described the machining operation is that of turning using a lathe of usual construction upon which the probe and the electrical connections are provided. It is stated, however, that the method of machining may equally be applied to milling or planing operations. A satisfactory potential for performing the operation has been found to be 4000 volts and a current of 5 milliamperes. Numerous examples using workpieces and cutting tools of different materials are given in the Specification.
Patent GB-1406514-A (GB)
Title: Radiometric system
IPC: G01K11/00
Filed: 1973-12-06
Abstract: 1406514 Radiometer SPERRY RAND CORP 6 Dec 1973 56629/73 Heading G1U A known type of conically scanning direction finders is modified by the addition of a radiometer type detector to identify a target and thus enable switching from a general search pattern to a manual or automatic tracking mode. The received radiation from directional antenna 1 passes via circulator 25 to a comparison type radiometer channel which involves phase detector 72 whose reference is the waveform f s  driving a switch 47 to alternately connect received and reference signals 48 to the phase detectors 72. The detector output is smoothed and applied to threshold detector 99. A sufficiently large "radio temperature" difference between the two halves of the switching cycle operates an alarm and moves the pointer on indicator 100, signalling a target. The received radiation may be thermal noise when the system is passive. In this case switch 30 connects oscillator 28 to load 33. In the active mode, switch 30 connects the oscillator to the antenna 1 via the circulator 25 and coupler 23 supplies reference signals to the mixer 40.
Patent GB-1222959-A (GB)
Title: Sliding door gear
Inventor: RAYBOULD EDGAR JOHN
IPC: E05D15/06
Filed: 1967-12-14
Abstract: 1,222,959. Sliding door gear. NEWHALL METAL PRODUCTS Ltd. 12 March, 1969 [14 Dec., 1967], No. 56801/67. Heading E1J. In a sliding door gear in which the runner has two spaced rollers (5, not shown) engaging the lower flange of a C-section guide rail 2 and one further roller 7 engaging the upper flange of the rail 2, and disposed symetrically between the rollers (5) the door 1 is suspended from the runner by a hanger bracket 8 pivotally connected at 11 to the body pressing 4 of the runner to be free to swing about a horizontal pin axis 11 perpendicular to the time of travel of the runner, the roller 7 being mounted on the bracket as by the pin 12 the free end of which is located in an arcuate slot (13) in a strap (14) which links the free ends of the pins (6) that carry the other two rollers (5).
Patent GB-1449179-A (GB)
Title: Inking or damping system on printing machines particularly  offset printing presses
IPC: B41F31/32
Filed: 1973-12-07
Abstract: 1449179 Printing apparatus ROLAND OFFSETMASCHINENFABRIK FABER & SCHLIECHER AG 7 Dec 1973 [8 Dec 1972] 56903/73 Heading B6C In an inking or damping system with a messenger roller oscillating between an ink or damping fountain roller and a forme roller the dwell time of the messenger roller at the fountain roller is adjustable by means of two cam discs 4, 5, which can be angularly shifted with respect to each other, the discs being mounted on a driving shaft 13 and driven through differential gearing including a ring gear 15, 10, for each cam and a bevel gear 14 co-operating with the gears 15, 10 and movably mounted on a worm gear segment 16. The relative angular position of the cam discs is adjustable by movement about the driving shaft 13 of the gear 14 by operation of an adjusting spindle 18 coacting with the segment 16.
Patent GB-1153166-A (GB)
Title: Cyanine dyes
Inventor: FRY DOUGLAS JAMES
IPC: C09B23/06
Filed: 1966-12-20
Abstract: 1,153,166. Benzothiazoles; benzoselenazoles. ILFORD Ltd. 11 Dec., 1967 [20 Dec., 1966; 15 May, 1967], Nos. 56986/66 and 22442/67. Heading C2C. [Also in Divisions C4 and G2] 2 - Methyl - 5 - phenylthiobenzothiazole is prepared by reacting 5-amino-2-methyl benzothiazole in HCl with sodium nitrite and then treating the diazonium salt with benzene thiol, sodium acetate and copper bronze. Anhydro-2- methyl - 5 - phenyl thio - 3,3<SP>1</SP> - sulphopropylbenzothiazolium hydroxide is prepared by reacting 2 - methyl - 5 - phenylthiobenzothiazole and 1,3-propane sultone. 2-Methyl-5-phenoxy benzo thiazole is prepared by reacting 4-chloro-3- nitrophenyl phenyl ether with a sodium sulphide and sulphur reflux to give bis-(2-nitro-4- phenoxyphenyl)-disulphide which is then treated with acetic acid/acetic anhydride/Zn dust. Anhydro - 2 - methyl - 5 - phenoxy - 3,3<SP>1</SP> - sulphopropylbenzothiazolium hydroxide is obtained by reacting the product with 1,3-propane sultone. 2 - Methyl - 5 - phenoxybenzoselenazole is prepared by treating 2-nitro-4-phenoxy aniline with HCl and sodium nitrite then sodium acetate and potassium selenocyanate and then alkaline sodium dithionite to give the sodium salt of 2- nitro-4-phenoxy benzene selenol which is then treated with acetic acid/acetic anhydride/Zn dust.
Patent GB-1244363-A (GB)
Title: Transistor circuit for delaying analogue signals
Inventor: KRAUSE GERHARD
IPC: G11C27/04
Filed: 1968-09-19
Abstract: 1,244,363. Analogue signal delay circuits. FERNSEH G.m.b.H. 19 Sept., 1968 [19 Sept., 1967; 18 Oct., 1967; 18 Nov., 1967], No. 57231/70. Heading H3U. An analogue signl is passed along a succession of charge storage devices by the cyclic operation of common emitter transistor stages coupling the storage devices. When the clock signal in Fig. 1 is positive, capacitor 312 charges to an extent determined by the value of the signal at the base of transistor 311. When the clock becomes negative a corresponding charge is passed via the opposite conductivity transistor 32 to capacitor 332. In this way the charge is passed along the succession of capacitors. Diodes 324 and 334 discharge the capacitors during the other half-cycle of the clock pulses. The output may be taken through a filter which removes the clock frequency. In Fig. 2 (not shown), the transistors are all of the same conductivity type and adjacent transistors receive clock pulses of opposite phase. In addition, clock pulses are applied to the emitters. Diodes (413, 423 &c.) prevent discharge of the capacitors through the collector base paths. In Fig. 3a (not shown), the capacitors are replaced by charge storage diodes. Out-of-phase clock pulses for the collectors may be provided by a changeover switch (Fig. 3, not shown) and the charge may be transferred between capacitors one at a time in reverse order instead of in groups of alternate transistors by a cycle of clock pulses derived from a counter or shift register (Fig. 6, not shown).
Patent GB-1362978-A (GB)
Title: Dams
IPC: E02B7/06
Filed: 1971-12-09
Abstract: 1362978 Dams STRABAG BAU-AG 9 Dec 1971 [9 March 1971] 57338/71 Heading E1H A dam provided with coarse rock faces (5a, 5b Fig. 3 not shown), includes a core packing 1a, 22, 1b Fig. 4, preferably of interengaging mineral particles in a bituminous matrix which packing contains at least one filter bed 2, preferably of non-bitumenised interengaging mineral particles, both the core packing and the filter bed extending along the whole length of the dam and resting on a toe wall 4 provided with preferably spaced drainage compartments 6 communicating with the filter bed 2. Any water leaking through the packing is discharged through the bed 2, compartments 6 and outlet pipes 10. An inspection of the discharges through the pipes 10 indicates which portions of the dam are leaking. Alternatively as shown in Fig. 2 the drainage compartments 20a-d are grouped together at the lowermost part of the dam, water leaking into the filter bed from vertical sections k1-k4 being conducted to the compartments 20a-d and associated outlet pipes through channels 19a-19c between sealing strips 18a-18c in the filter bed 2. The strips 18a-18c may be formed of waterproof synthetic resin foil, or comprise thin sections of the core packing material interposed between the filter bed forming material (Fig. 6 not shown). Similar groups of sealing strips e.g. 14a-14c discharging to further drainage compartments 16a-d in the toe wall 4 may further subdivide the dam into groups of sections k1-k4 and k5-k8 to facilitate location of leaks in the dam. When the dam is partially submerged on its downstream side, a second filter bed 2b with corresponding drainage compartments 6' in the toe wall 4 may be provided to show if leakage is occurring through the upstream or downstream portion of the core packing. To form each layer an apparatus shown in Figs. 8 to 10 is advanced along the dam and simultaneously coarse rock for forming the outer faces is deposited from grab 36 over roof member 25 and levelled by a blade 27, bitumenised mineral material for forming the core packing is supplied through a hopper 28 and levelled by sliding gates 30 and non-bitumenised mineral material for forming the filter bed is supplied through an inner hopper 29 and levelled by sliding gate 31, the deposited materials being kept separated at this stage by partitions 23, 23' 24, 24'. The thus deposited materials are tamped by reciprocating compactors 33-35. Heat radiators 37, 37' heat the bitumenised mineral particles of the uppermost layer, as the apparatus moves over it whilst laying a fresh layer to bond the layers.