baber/WOPTO huggingface dataset:
Patent GB-1045059-A (GB)
Title: Resin blends
IPC: C08L69/00
Filed: 1965-09-13
Abstract: Poly-(tetrafluoroethylene) latex is blended with a thermoplastic resin to produce a substantially homogeneous mixture of the latex and the thermoplastic resin, a solid moulding composition is recovered from the mixture by removing the volatiles contained therein, the amounts of latex and theremoplastic resin respectively blended together being such that the amount of poly-(tetrafluoroethylene) in the final moulding composition is at least 10% by weight, preferably between 10 and 20% by weight.  The thermoplastic resin is preferably in a solvent therefore at the time of blending with the latex. Numerous thermoplastic resins are specified; those exemplified are polymethyl methacrylate, polystyrene, a terpolymer of methyl methacrylate, styrene and acrylonitrile, cellulose acetate butyrate, polypropylene, polyoxymethylene, polyvinyl chloride, a polycarbonate from phosgene and bisphenol A, and nylon 66.
Patent GB-390482-A (GB)
Abstract: 390,482. Actuation of switches. VYVYAN, V. K. and LEFEVRE C. M., Richmond, Natal, South Africa. June 30, 1931, No. 18851. Convention date, May 7. Void [Published under Sect. 91 of the Acts]. [Class 38 (v).] Pneumatic actuation.-An automatic ignition switch operated by suction comprises a chamber J communicating by a pipe G with the induction pipe of an internal-combustion engine and containing a diaphragm Z attachedto a spindle B normally held in the position shown by the tension in the movable spring contact F. A hole O brings the upper side of the chamber into communication with the atmosphere. Reduction of pressure in the pipe G causes the diaphragm to descend and the contact F to engage a contact F<1>. In the lowest position a valve I closes the opening G thus protecting the diaphragm from strain.
Patent GB-823492-A (GB)
Title: Improvements in or relating to methods of and apparatus for regulating free-piston engine compressors
IPC: F02B71/00
Filed: 1957-12-17
Abstract: 823,492. Free piston compressors. JUNKERS MASCHINEN-U METALLBAU G.m.b.H. Dec. 17, 1957 [Dec. 24, 1956], No. 39267/57. Addition to 788,618. Class 7(2) A free piston compressor is regulated by producing two opposed forces, the greater of which is dependent on the static pressure of the gas at a point in the delivery conduit of the compressor and the lesser of which is dependent on the rate of flow of the gas through the delivery conduit, and the resultant force is balanced by a spring and employed to control the fuel supply to the engine of the compressor. In Fig. 1 the pressure in the delivery conduit 1, which is the compressed gas delivery conduit of a free piston compressor (not shown) of the type described in the parent Specification, acts on the left hand side of a piston 4b and the pressure in a nozzle 2 acts on the left hand side of a piston 7. The right hand side of the piston 7 is acted on by the pressure derived from a pipe 17 the end of which faces the nozzle 2 as shown. The fuel supply is controlled by the member 15. Fig. 6 shows an embodiment in which the gas issuing from the nozzle 2 acts on a member 53 arranged to swing about a pivot 51 and the pressure in the chamber 50 acts on the piston 4b. In another embodiment there are two control pistons with their axes parallel to one another and connected to a common control lever. In a still further embodiment, Fig. 3, belows 28, 29, 30 are included in the control. A number of other embodiments are described. If desired the cylinder and piston arrangement in Figs. 1 and 6 may be replaced by a bellows arrangement. The apparatus of Fig. 1 may be modified by omitting the conduit 11 and instead connecting the working chamber 9 with a branch of conduit 3. An annular venturi nozzle or a normal venturi nozzle may be used for reducing the static pressure of the gas.
Patent GB-967968-A (GB)
Title: Improved curtain hook
Inventor: SATCHWELL FRANCIS JOHN
IPC: A47H13/12
Filed: 1961-11-03
Abstract: 967,968. Suspending curtains. THOMAS FRENCH & SONS Ltd. Nov. 19, 1962 [Nov. 3, 1961], No. 39373/61. Heading A4B. [Also in Division F2] A hook for use with tapes having one or more longitudinal bands comprising weft threads only, comprises a support member of shank c having means for slidably engaging a curtain rail and one or more heads e adapted to engage the apertures between adjacent monofilament nylon weft threads in the longitudinal bands of the aforesaid tape. The heads e are substantially wedge shaped having wedge faces f, the heads being truncated to form faces g and further truncated to form faces i. A shoulder h is formed at the junction of the head and support piece d. The apertured head b of the hook is adapted to engage a curtain rail of H-shaped cross-section. In a modification Fig. 3, (not shown), adapted to engage a rail of C-shaped cross-section, the hook is provided with two aperture engaging heads. In another modification the heads are arranged to extend horizontally when the hook is in use. The hook is made from a synthetic plastics material such as nylon. Specification 967,967 is referred to.
Patent GB-339814-A (GB)
Title: Improvements relating to gas ovens
IPC: F24C3/08
Filed: 1929-12-30
Abstract: 339,814. Burton Foundry Co., Ltd., and Campbell, D. F. Dec. 30, 1929. Combined solid-fuel and gas stoves; ovens.-In a gas oven, more particularly for use in a coalfired range, the burner or burners i are mounted on a holder j adapted to be withdrawn from the oven, and the gas tap is provided with devices which lock it in the closed position until they are operated to release it by the weight of the burner and holder. In the construction shown, a squared portion e<1> of the gas tap spindle passes through a key-hole slot g, in a vertically-sliding or pivoted plate f, a narrow portion g<1> of the slot preventing rotation of the spindle when the plate is lowered. The plate is raised to unlock the spindle by a pivoted lever or levers h operated by contact with the burner i or burner holder i when these are inserted. The lower end of the plate f may uncover a ventilation hole k when the plate is raised, and an outlet n may be opened on insertion of the burner through mechanism m similar to that employed for unlocking the gas tap.
Patent GB-1283551-A (GB)
Title: Improvements in or relating to systems for reconstituting carrier references signals
IPC: H04L27/227
Filed: 1969-08-08
Abstract: 1283551 Automatic phase control POST OFFICE 8 Aug 1969 [14 Aug 1968] 39731/69 Heading H3A A system for generating a reference carrier in response to a received carrier burst signal, said signal having an interval of unmodulated carrier followed by an interval of phase shift key modulated carrier, operates in two modes. In the first mode, the fundimental of the received carrier signal is compared with the fundimental of a locally generated carrier in a phase comparator to generate a control signal which adjusts the locally generated signal to phase lock it to the incoming signal. Once phase lock is achieved, the system switches to its second mode of operation in which the second harmonics of the two carrier signals are fed to the comparator. In this mode phase shift keying of the received carrier will not affect the phase comparator output signal. In order to switch the modes of operation, the local carrier signal is phase shifted by 90 degrees, multiplied by the received carrier, and the multiplier output fed to a threshold detector to produce a two level control signal which switches the two carrier signals either directly to the phase comparator, or via second harmonic generating circuit. The phase control signal for the locally generated carrier is fed to the local oscillator via a filter, the cut off frequency of which is controlled by the two level control signal which operates the mode switches.
Patent GB-958575-A (GB)
Title: Vaccines containing clostridium perfringens ª‰-toxoid
Inventor: STERNE MAX
IPC: A61K39/08
Filed: 1959-11-23
Abstract: A stable vaccine containing Clostridium perfringens b -toxoid is prepared by incorporating therein a pharmaceutically acceptable amino- or hydroxy-carboxylic acid sequestering agent for metallic ions.  Specified sequestering agents are the alkali metal, e.g. sodium salt of citric and ethylenediaminetetra-acetic acids.
Patent GB-1532403-A (GB)
Title: Hydrogen generating device
IPC: C01B3/50
Filed: 1977-09-23
Abstract: 1532403 Hydrogen-generating device SOC ANON DITE COMPAGNIE GENERALE D'ELECTRICITE 23 Sept 1977 [4 Oct 1976] 39802/77 Addition to 1489054 Heading B1L [Also in Division Cl] In a hydrogen generating device, the hydrogen produced is separated from undissociated water vapour by means of a hydrogen selective membrane which may be a ceramic substance (e.g. alumina), but is preferably a porous ceramic substrate (e.g. alumina or zirconia) having a metal coating. The metal may be Ta, W, Mo, Pd or Ni, or a Ni or Pd alloy e.g. Ni-Fe, Pd-Ag or Pd-Cu.
Patent GB-1200708-A (GB)
Title: Process for the manufacture of phenyl esters from benzene
IPC: C07C69/017
Filed: 1968-08-21
Abstract: 1,200,708. Preparation of phenylesters from benzene. FARBWERKE HOECHST A.G. 21 Aug., 1968 [25 Aug., 1967], No. 40003/68. Addition to 1,185,373. Heading C2C. A process for the catalytic production of phenyl esters from benzene which comprises reacting a mixture of benzene, a saturated aliphatic carboxylic acid and molecular oxygen in the presence of a noble metal of Group VIII of the Periodic Table, the stable valency of which metal in its compounds is at most 4, and at least one element of Group V B  or VI B  of the Periodic Table, the atomic number of the element being at least 34. The metals of Group V B  and VI B  are preferably Sb, Bi, Se or Te and may be used in an amount of 60 atom per cent calculated on the noble metal.
Patent GB-1000415-A (GB)
Title: Improvements in or relating to the mounting of shafts
IPC: B23Q1/38
Filed: 1961-11-08
Abstract: 1,000,415. Bearings. ESCHER WYSS A.G. Nov. 8, 1961 [Nov. 10, 1960], No. 40090/61. Heading F2A. [Also in Division B3] A fluid bearing has a pivotally-mounted bush which is adjusted by fluid-pressure according to the inclination of the shaft. In an embodiment, a spindle 12 is mounted in fluid bearings 13, 14, the former also serving as a thrust bearing. A bush 15, in the bearing 13, is mounted on pivots 22 and fluid pressure applied to the thrust portions 17, 18, of the bearing 13, maintains the bush 15 in a central position between members 19, 20. A bush 16, in the bearing 14, is also mounted on pivots 22 and an extension 41, of the bush 16, serves as an additional fluid bearing, the pressurized lubricant being supplied to depressions 43 in the extension 41 by an independent pump. The pressure in the depressions 43 is adjusted according to the width of the gap between a surface 42, on the extension 41 and the spindle 12.
Patent GB-1487829-A (GB)
Title: Dynamic weighing using differential filtering
IPC: G01G23/10
Filed: 1975-09-03
Abstract: 1487829 Dynamic weighing W & T AVERY Ltd 3 Sept 1975 [14 Sept 1974] 40161/74 Heading G1N(A) In a method of dynamic weighing a transducer signal containing an oscillatory component due to movement of the load is differentiated with respect to time, the signal and its differential are integrated over the weighing period T and the two integrates are then combined. In a modification the signal and/or differential are multiplied by single-valued functions f 1 (t), f 2 (t) respectively before integration the said functions having at least one maximum within the period T. The transducer signal converted into digital form is repeatedly sampled over a number of cycles of the oscillatory component i.e. N times during the period T, and the nth sample Sn, stored in store 10, is subtracted from the succeeding sample S n+1  in block 12. The sample and difference signals are multiplied by functions f 1 (t) and f2(t) respectively and the resulting signals are added by blocks, 22, 24 to the accumulated totals stored in blocks 26, 28. At the end of the period T the accumulated totals are added by block 30. To derive the static weight the resultant sum is averaged over the period T or T may be incorporated as an averaging factor in the functions f 1 (t), f 2 (t). Either or both functions f 1 , f 2  may be constant during the weighing period in which case corresponding circuit blocks 14 and 18 or 16 and 20 are omitted. The functions may alternatively be chosen to give high attenuation of components above a given frequency e.g. 2.5Hz. The value of f 1 (t) by which Sn is multiplied is given by f 1 (<SP>nT</SP>/N) and the value of f 2 (t) by which S n+1 -S n  is multiplied is given by f 2 (<SP>mT</SP>/M). Second or higher order differentials may be used. In the case, for example, of a second differential a further store is provided to store S n+1  -S n  and a further subtraction block provides the difference: (S n+2  - S n+1 ) - (S n+1 -S n ).
Patent GB-1384043-A (GB)
Title: Thionothiolphosphoric phosphonic acid esters process for their production and their use as insecticides and acaricides
IPC: C07F9/173
Filed: 1973-08-24
Abstract: 1384043 Unsaturated thiophosphorus esters BAYER AG 24 Aug 1973 [26 Aug 1972 17 Nov 1972] 40211/73 Heading C2P The invention comprises compounds of the general formula wherein R is C 1 -C 4  alkyl and R<SP>1</SP> is C 1 -C 4 -alkyl, -alkoxy or -alkylmercapto, or is phenyl. They are obtained by reacting with Hal.CH 2 -CH=C(CH 3 ) 2  in which formulµ M is a monovalent metal equivalent, preferably an alkali metal, or is ammonium, and Hal is halogen. The process is preferably carried out in a solvent or diluent. The products have insecticidal and acaricidal properties and may be used as active ingredients in pesticidal compositions of conventional type.
Patent GB-884308-A (GB)
Title: Improvements in or relating to machines for cleaning milk cans
IPC: B08B9/08
Filed: 1958-12-06
Abstract: 884,308. Machines for washing milk cans. SCHOLTEN, G. Dec. 16, 1958 [Dec. 21, 1957; April 2, 1958], No. 40560/58. Class 138 (1). A machine for cleaning milk cans comprises a casing 2 provided with rollers 19 for supporting a milk can 14, rotary brushes, 6, 3, 4 for cleaning the interior and exterior of the can 14, respectively, and a pipe 18 for feeding water into the interior of the can 14. The brushes 3, 4 are rotated by a motor 11, through a belt and pulley drive. After cleaning by the brushes 3, 4 the can 14 is inverted and placed on a support 25 so arranged that the weight of the can opens a valve 23 permitting water to discharge from the supply pipe 18 through a nozzle 24 to flush the can. The pipe 18 may be connected to a container of disinfectant which is drawn into the water being sprayed. In a further construction the rotary shaft carrying the brush 3 is hollow and perforated for the passage of water into the can from the supply pipe 18.
Patent GB-1440413-A (GB)
Title: Process for producing butyraldehydes
IPC: B01J31/00
Filed: 1974-09-17
Abstract: 1440413 Butyraldehydes (oxo process) MITSUBISHI CHEMICAL INDUSTRIES Ltd 17 Sept 1974 [21 Sept 1973] 40567/74 Heading C2C A process for producing butyraldehydes comprises reacting propylene with a water gas in a reaction solvent containing a triarylphosphine and a soluble rhodium complex in which a portion of said triarylphosphine is co-ordinated with rhodium metal, under a carbon monoxidehydrogen total pressure of from 30 to 100 kg./cm.<SP>2</SP> and at a temperature of from 60 to 150 C., the total amount of said triarylphosphine present in said reaction solvent and in said soluble rhodium complex co-ordinated with rhodium metal being from 1 to 30 m. moles per litre of said reaction solvent. The soluble rhodium complex may be present at a concentration of from 0À1 to 500 mg., calculated as rhodium metal, per litre of said reaction solvent, and the ratio of triarylphosphine to rhodium may be 5 to 200 moles per gram-atom, and the water gas may contain <SP>1</SP>/ 3  to 7 moles of hydrogen per mole of carbon monoxide.
Patent GB-1202274-A (GB)
Title: Hydraulic drive for a lift or hoist
Inventor: HANS KURT
IPC: E21B43/34
Filed: 1967-09-06
Abstract: 1,202,274. Hydraulic accumulators. INSTITUT F R FÍRDERTECHNIK LEIPZIG. Sept. 6, 1967, No. 40776/67. Heading F1P. In an hydraulic drive for a hoist lift, wherein a pump transfers fluid between a lifting cylinder and an accumulator, the accumulator comprises a single vertical pipe or a plurality of vertical pipes 1 inter-connected at their adjacent ends, the lower end(s) being connected to the pump and the upper end(s) to a gas supply 3. Each pipe contains a floating piston 2 for separating the liquid from the gas. In operation the accumulator is conveniently located in a lift shaft.
Patent GB-921326-A (GB)
Title: Process for the production of n-monosubstituted piperazines
IPC: C07D295/023
Filed: 1960-11-28
Abstract: N-monoalkyl piperazines are produced by heating N-monoalkyl substituted ethylene diamines dissolved or suspended in inert organic solvents in the presence of metal hydrogenation catalysts.  The reaction is advantageously carried out in the presence of Raney metal catalysts, e.g. nickel and cobalt.  The reaction is preferably carried out at 100-250 DEG C. and 50-250 atm. Examples are given of the conversion of N-monomethyl ethylene diamine to N-methyl piperazine.  In one example the monomethyl ethylene diamine is prepared in situ by the hydrogenation of methylene aminoacetonitrile. Specification 917,767 is referred to.
Patent GB-997970-A (GB)
Title: Apparatus for simultaneously extruding plastic layers on a core
IPC: B29C48/06
Filed: 1961-11-16
Abstract: 997,970. Coating cores. WESTERN ELECTRIC CO. Inc. Nov. 16, 1961 [Nov. 18, 1960], No. 40990/61. Heading B5A. Apparatus for simultaneously extruding successive layers of plastic materials on to a core 11 comprises an extrusion head 13 through which the core 11 is drawn, separate extrusion cylinders 16, 17 having screws for feeding a first plastic material 68, e.g. polyethylene, into the head 13 at the entrance to a die 111 to form a first layer on the core 11 and feeding a second plastic 69, e.g. polyvinyl chloride, to the exit end of the die 111 to form a second layer, and means for movably mounting the entrance end of at least one cylinder 16, 17 to accommodate axial expansion. The core 11 is guided and drawn through the head 13 and a cooling trough (Fig. 1, not shown) and simultaneously the plastics 68, 69 are advanced by rotary water cooled screws through the cylinders 16, 17 provided with screens and breaker plates, to enter the head portion 101 via the passages 94, 96. The cylinders 16, 17 are provided with heaters 59 and are supported at their entrance ends by cooled housings 24, 26 which are slidably mounted on surfaces 38, 39 and guided on keys 43 thereby to accommodate the expansion of cylinders 16, 17. The head portion 101 comprises a generally cylindrical extrusion passage 102 extending transversely of the cylinders 16, 17 and provided with threaded portions 103, 106 and plain portions 104. The die 111 is retained in a threaded insert 107 having a heat insulating portion 105 with its entrance portion co-operating with the end portion 122 of an axially adjustable guiding member 131 to form four segmental passages 127 through which the first plastic 68 is fed, and its exit end co-operating with the entrance portion of an axially adjustable, second die 141 to form four segmental passages 151 through which the second plastic 69 is fed. The core 11 is coated with a layer of first plastic 68 during passage through the die 111 and thereafter a layer of second plastic 69 is applied and shaped during passage through the second die 141, a velocity gradient being set up in the flow of second plastic 69 through the passages 151 due to the difference in temperature between the discs 111 and 141 and the higher velocity adjacent the tip 157 of the die 111 serving to prevent the accumulation of drool. Operational temperatures and pressures and dimensions of the dies and passages are specified. Specification 810,586 is referred to.
Patent GB-1070185-A (GB)
Title: Purification of ethylenically unsaturated sulfonated monomers
Inventor: ARMEN ARCHY
IPC: C08F28/00
Filed: 1964-10-08
Abstract: A polymerizable ethylenically unsaturated sulphonated monomer is purified by (a) mixing with an aqueous solution of said monomer a stabilizer for ethylenically unsaturated compounds and a zirconium compound capable of forming in the solution the ZrOOH+ ion, the solution after mixing with the zirconium compound having a pH less than 3.0, (b) further mixing with the solution a base dispersible in the solution and inert to the monomer to raise the pH of the solution to at least 3.5; and (c) separating the insoluble phase from the solution and recovering the solution containing said sulphonated monomer.  Specified sulphonated monomers are (1) alkenyl aromatic monomers of the formula <FORM:1070185/C2/1> wherein R is H or CH3; X is H, Cl, Br or a C1 to C8 alkyl radical; Y is a bivalent or trivalent C1 to C4 hydrocarbon radical; A is H, or an alkali, alkaline earth, or transition metal, or a C1 to C5 alkyl radical; a is an integer from 1 to 4; m is 0 or 1; and n is 1 or 2; (2) sulphonated olefine monomers of the formula CH2=CZ-(Y)m-(SO3A)n wherein Z is H, Cl, Br, carboxy radical, a C6 to C12 aryl radical, or a C1 to C8 alkyl radical; and (3) sulphonated acrylate and methacrylate monomers of the formula CH2=CR-CO-Q-Y-(SO3A)n wherein Q is -S-, -O- or -NR-.  Specified zirconium compounds are ZrOCl2, ZrCl4, ZrOBr2, ZrOI2, ZrO(CNS)2 and ZrO(NO3)2. The zirconium compounds may contain from about 0.4 to 2.5% Hf.  If the sulphonated monomer is in the form of sulphonic acid it may first be converted to a salt by neutralizing with an inorganic base salt.  The purification can be performed in two steps.  Thus, when the monomer is recycle monomer containing some residual polymer in addition to other impurities, upon addition of the Zr compound residual polymeric products are selectively precipitated and may be removed.  The base may be added as in step (b) above and the precipitated zirconia and other impurities removed.  Suitable bases include those having a cation common with the cation of the sulphonated monomer when this is a salt, or bases such as MgO, CaO, KOH or NH4OH.  Examples are given for the purification of zinc 2-sulphoethylmethacrylate, sodium styrene sulphonate, sodium 2-sulphoethylacrylate and 2-sulphoethylmethacrylate. Comparative methods are given which involve recrystallization, solvent extraction, charcoal decolorization, chromatography and distillation methods.
Patent GB-973784-A (GB)
Title: Improvements in lined pipe joints
Inventor: TAIT FREDERICK JOHN LUSH
IPC: F16L13/02
Filed: 1962-10-31
Abstract: 973,784. Pipe joints. STEWARTS & LLOYDS Ltd. Oct. 21, 1963 [Oct. 31, 19621, No. 41112/62. Addition to 848,476. Heading F2G. Two pipe ends are joined together by swelling each pipe end to form a socket, lining the pipes to the socket, swelling an outer portion of each socket, fitting a spigot end of a lined tubular insert fully into one of the inner portions, fitting together the pipe ends so that the other spigot end of the insert fits fully into the other inner portion, and welding together the outer portions of the sockets, the spigot ends being unattached to said inner portions. In the embodiment described two pipes 1, 2 are swelled sharply at 3, 4 to form sockets 5, 6. The pipes are lined with bitumen 7, 8 up to the sockets. The sockets are further enlarged to form cylindrical outer portions 9, 10 connected to cylindrical inner portions 11, 12 by frustoconical parts 13, 14. The socket 5 may be further swelled at 15 to form a socket 16 to receive the spigot end 10 of the other pipe. A lined tubular insert 17 of substantially the same bore and external size as the normal pipe lengths 1, 2, after its ends are treated with bitumen paste, is inserted fully into the inner portion 11. The pipe ends are brought together so that insert 17 enters the inner portion 12. The pipe ends 16, 10 are then welded at 19, the spigot and socket arrangement allowing adjustment to compensate for variations in the length of insert 17. The continuity of the lining 7, 18, 8 is completed as the paste hardens.