baber/WOPTO huggingface dataset:
Patent GB-845838-A (GB)
Title: Improvements in and relating to coagulation
IPC: C02F1/52
Filed: 1958-11-14
Abstract: A method for flocculating clay minerals suspended in a liquid medium comprises adding to the liquid medium a coagulating amount of polyethylene oxide which has a reduced viscosity of from 1 to 75 in acetonitrile.  Examples of clay minerals include uranium ore p slurries, phosphate slimes, and turbid waters.  An additional clay mineral may be added to the suspension system such as bentonite clay, sodium or calcium bentonite.  Alternatively calcium or ferric chloride may be added to aid precipitation and an antioxidant, such as a diamine derivative, can be incorporated in the polyethylene oxide.ALSO:A method for flocculating clay minerals suspended in turbid waters comprises adding to the liquid medium a coagulating amount of polyethylene oxide which has a reduced viscosity of from 1 to 75 in acetonitrile.  An additional clay mineral may be added to the suspension system such as bentonite clay, sodium or calcium bentonite.  Alternatively calcium or ferric chloride may be added to and precipitation and an antioxidant, such as a diamine derivative, can be incorporated in the polyethylene oxide.ALSO:A method for flocculating clay minerals suspended in a liquid medium comprises adding to the liquid medium a coagulating amount of polyethylene oxide which has a reduced viscosity of from 1 to 75 in acetonitrile. Examples of clay minerals include uranium ore slurries and phosphate slimes.  An additional clay mineral may be added to the suspension system such as bentonite clay, sodium or calcium bentonite. Alternatively calcium or ferric chloride may be added to and precipitation and an antioxidant, such as a diamine derivative, can be incorporated in the polyethylene oxide.
Patent GB-631745-A (GB)
Title: An improved tube joint
IPC: F16L37/14
Filed: 1946-12-11
Abstract: 631,745. Cotters. LINES, E. W. P. Dec. 11, 1946, Nos. 36654 and 37800. [Class 89 (ii)] [Also in Group XXVIII] A pin 4 for securing a tube within a socket (see Group XXVIII) is tapered and has longitudinal ribs so as to bite into the tube and socket ; alternatively, a polygonal pin may be used. A slit 7 may be formed in the pin to make it resilient.
Patent GB-855310-A (GB)
Title: Improvements in or relating to chocolate preparations
Inventor: RADLEY JACK AUGUSTUS
IPC: A23G1/00
Filed: 1957-11-25
Abstract: A chocolate preparation contains, as emulsifying agent one or more partial esters of an oligo-saccharide with a fatty acid having 12 to 18 carbon atoms, each partial ester containing not more than 5 fatty acid radicals in the molecule.  The emulsifying agent may comprise 5 to 30% lecithin and 95 to 70% of one of the above esters.  Otherwise the emulsifying agent may be one or more phosphate esters of monoglycerides, diglycerides and lanolin in admixture with one of the above esters.  The esters contain preferably 2 or 3 fatty acid radicals per molecule, e.g. sucrose tristearate, sucrose distearate, sucrose dioleate or sucrose trioleate.  The following are examples of suitable emulsifying agents:-(a) 25-50% sucrose tristearate with 75-50% sucrose distearate; (b) 0-100% sucrose dioleate with 100-0% sucrose trioleate; (c) 7-15% lecithin with 93-85% of one of the sucrose esters, e.g. the distearate.  The total amount of the above esters added to the chocolate is preferably in the range 0,05-1% by weight, The ester may be added to the chocolate before conching and the lecithin after.  Examples are given of the use of various concentrations of different emulsifying agents for comparison of the viscosities of the resulting chocolate converture.
Patent GB-840531-A (GB)
Title: Improvements in or relating to loading buckets for earth moving equipment
IPC: E02F3/342
Filed: 1957-11-26
Abstract: 840,531. Shovelling machines. BRISTOL TRACTORS Ltd., and FIELD, E. Nov. 24, 1958 [Nov. 26, 1957], No. 36754/57. Class 68(1). In an overthrow shovel the scoop 4 is latched to the lift arms 3 by which it is swung vertically until the arms approach the vertical by a latch 8 extending between each side of the scoop and the adjacent arm. The latch is gravity actuated. When unlatched the scoop pivots rearwards with respect to the arms to discharge spoil. On the return of the arms the latch automatically locks the scoop to the arms.
Patent GB-1396204-A (GB)
Title: Method and apparatus for mending knit fabric
IPC: D04B17/00
Filed: 1972-08-07
Abstract: 1396204 Repairing knitted fabric PAIR-X INC 7 Aug 1972 [6 Aug 1971] 36777/72 Heading D1G Snagged knitted fabric is repaired by an apparatus 10 having a reciprocating loop engaging blade 20 which is caused to move along a path parallel to the snag line P but a few courses to one side, the path then being moved towards the line and, if necessary, beyond it A wetting agent (unspecified) may be applied to the fabric before operation thereon. Two embodiments of the apparatus are described both having an arm 14 reciprocated by an electric motor (30 Figs 4 and 5 or 6, not shown) and carrying one or two blades 20 disposed at 78‹ to the arm. In the first embodiment bevel wheels (33, 34) rotate a cam (40) engaged by a slot (41) in a guided plate (42) to which the arm is attached. In a second embodiment the driven bevel wheel (34A) carries a gear (60) driving a further gear (61) having an eccentric connection (at 64) with a linkage 63, 65 connected to the arm 14 to reciprocate it in its guides (44A, 45A). The blade 20 is reciprocated at about 3000 oscillations per min along a stroke of # inch.
Patent GB-1279899-A (GB)
Title: Nitrone compounds
IPC: C07D307/73
Filed: 1970-07-29
Abstract: 1279899 Nitrofuran derivatives DAINIPPON PHARMACEUTICAL CO Ltd 29 July 1970 [30 July 1969 23 Dec 1969] 36792/70 Heading C2C Novel compounds of Formula I: (in which R 1  is halogen, phenyl or furyl and R 2  is phenyl or -A(X) n , where A is C 1-6  alkylene, X is H, OH, furyl, aroyloxy, C 1-4  alkanesulphonyloxy or C 2-4  alkanoyloxy and n is 1 to 3) are prepared by reacting a compound of Formula II: with a substituted hydroxylamine of formula R 2 NHOH, and optionally converting any OH group in R 2  into an aroyloxy, alkanesulphonyloxy or alkanoyloxy group. Compounds of Formula I have antimicrobial activity and may be used in the food and agriculture fields or as the active ingredients in pharmaceutical compositions for oral, topical or parenteral administration.
Patent GB-948371-A (GB)
Title: Improvements in or relating to the treatment of beryl ores
Inventor: DERRY RAYMOND
IPC: C22B35/00
Filed: 1961-10-13
Abstract: Powdered beryl ores are suspended in a hot gas to fuse the ore and form spherical glassy particles which are cooled and solidified without coalescence.  The product is thus rendered soluble in mineral acids.  The hot gas stream, at a temperature above 1700 DEG  C. may be provided by an oxyacetylene flame or a plasma torch. Devitrification of the particles by heating, for example to 920 DEG C., facilitates the beryllium recovery by acid leaching with for example sulphuric acid of 85% strength.
Patent GB-322353-A (GB)
Title: Davit appliance for lowering boats at sea
IPC: B63B23/04
Filed: 1928-12-14
Abstract: 322,353. White, B. H. V. Dec. 14, 1928. Boat-lowering gear comprises a davit girder A working horizontally in guides and attached beneath the deck C and operated by rack and pinion gear from an operating-handle. K above the deck. The davit, which is stayed by arms G pivoted to collars H working on stanchions F, is rigged with a single fall Z running from a spring-returned winch B and terminating in a release device comprise a U-shaped member R and through pin, a spring buffer P being interposed in the fall. The boat is provided with a four joint wire suspension R<1> united at the member R<2> which co-operates with the member R. The boats are stowed on the deck U and are supported on chocks working on rails &c. When fully outboard, they may be supported on a collapsable table X.
Patent GB-1098704-A (GB)
Title: Improvements relating to electric cables
Inventor: BIRD DENNIS WALTER
IPC: H01B7/04
Filed: 1963-09-19
Abstract: 1,098,704. Electric cables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 3, 1964 [Sept. 19, 1963], No. 36945/63. Heading H1A. In a cable having a flexible outer sheath of rubber, synthetic rubber or other elastomeric material, which surrounds an insulated and screened conductive core, the elastomeric material constituting the sheath 6 and the conductor insulation 4 are reinforced by fibrous material, the reinforcing fibrous material 7 for the sheathing having a higher percentage elongation at break than the fibrous material 11, 13 for the conductor insulation. The power conductors 3 have their insulation 4 surrounded by a metal/textile braiding 5 and are arranged with pilot and earth conductors 2, 1 within the sheath 6 which is of heavy duty polychloroprene. The fibrous material 7 contained within the sheath 6 is an open weave, or braid, or roving network of nylon, polyethylene-terephthalate or polypropylene and is embedded between separate lappings or extrusions which are bonded together. The insulation 4 of the power conductors 3 is reinforced by glass fibre rovings 11, 13 (Fig. 3) of opposite lay embedded between layers of insulation rubber 10, 12, 14 which have been vulcanized. Alternatively, this insulation can be made from layers of vulcanized natural rubber, butyl rubber, or ethylene propylene rubber and vulcanized chlorsulphonated polyethylene bonded together.
Patent GB-776996-A (GB)
Title: Electrostatic recording and reproducing systems or apparatus
IPC: G11B9/08
Filed: 1954-12-22
Abstract: 776,996. Electric recording and reproducing. PULVARI, C. F. Dec. 22, 1954, No. 37031/54. Class 40 (2). In an electro-static recording apparatus, the record carrier comprises a material, such as a ferro-electric material, in which (a) the intra and intermolecular structure can be spontaneously and permanently remanent-changed, or (b) in an insulating or semi-insulating material having electric dipoles the spontaneous alignment of which by mutual interaction can be remanent changed, in accordance with the intelligence to be stored therein. In an embodiment, Fig. 2, the carrier comprises a tape having a base comprising a foil 74 to which a coating of ferro-electric, i.e. piezo-electric material is applied. The coating is covered with tiny conductive particles 76, electrically insulated from each other and comprising a great number of individual condensers. The tape is passed between a curved contact 81, Fig. 1, and a knife edge contact 80 while a direct voltage is applied to prepolarize the material prior to recording. During recording of intelligence from signal source 98, the tape may be heated by thermostatically controlled means in the body of the contact 81 which is thereby maintained at a temperature below the Curie point. Reproduction is effected by sharply flexing the tape over two symmetrical insulating pieces 87, 88 holding a thin conductive layer 89, and amplifying the signal obtained therefrom in a conventional manner. Signals may be obliterated from the tape by heating it above the Curie point, after which no pre-polarization is necessary. In another embodiment, Fig. 3, the tape is prepolarized by a condenser 100, and recording is effected by a modulated high-frequency containing the information to be recorded. In the reproducing operation ultrasonic waves are focused on the tape by an arcuate piezo-electric or ferro-electric member 105 coupled to a generator 109. In a further embodiment, Fig. 4, cathode rays are focused through an aperture slot or Lenard-type window 118, which may be of aluminium, of recording and reproducing tubes 116 and 136, respectively, in which the front portions are of metal and the rear portions of glass.
Patent GB-998922-A (GB)
Title: Process for the production of finely-dispersed calcium silicate fillers
IPC: A01N25/08
Filed: 1961-10-16
Abstract: Finely dispersed calcium silicate filler is prepared by adding fresh non-aged silica sol, to an aqueous suspension of a hydrated calcium silicate having a CaO : SiO2 ratio of 1 : 1, until the CaO : SiO2 ratio lies between 1 : 1.2 and 1 : 3. The resultant calcium silicate, having the disturbed crystal structure of synthetic tobermorite and X-ray diffraction lines d = 3.06 <\>rA, 2.79 <\>rA, 1.83 <\>rA and 1.66 <\>rA, is washed, dried and ground by usual methods.  The hydrated calcium silicate having a CaO : SiO2 ratio of 1 : 1 may be any calcium silicate having this ratio which has either been heated above 40 DEG  C. or stirred as a suspension at room temperature for at least 30 minutes.  The calcium silicate having a CaO : SiO2 ratio of 1 : 1 may be prepared either by adding milk of lime to a calcium silicate precipitate, the whole then being heated and stirred until an increase in viscosity and transparency and a reduction in the pH value is attained, or by adding milk of lime to fresh non-aged silica sol.  The silica sol may be prepared by either adding sodium silicate solution to hydrochloric acid until a pH of about 3 is attained and the sol contains about 5% of silica, or by ion exchange from a silicate solution.
Patent GB-773154-A (GB)
Title: Improvements in or relating to auxiliary containers for use in motor vehicles
IPC: B60K15/04
Filed: 1954-12-28
Abstract: 773,154. Tanks. MAUERER, M., and MAUERER, E. Dec. 28, 1954 [Dec. 28, 1953; Feb. 15, 1954; Oct. 1, 1954], No. 37494/54. Class 69 (1). An auxiliary container for motor vehicles for storing fuel, oil, water, &c., is in the form of, a body of revolution and has a part 1 (Fig. 1) shaped to provide peripheral lands so that the container can be nested within a correspondingly shaped rim 2 of a spare wheel. A detachable container comprising an insert 8, fitting into a recessed compartment 7 and having a cover 10, may be provided for storage of tools, and a plate 12 held in the cover 10 by means of a split ring 13 so that first-aid equipment may be stored in the cover. Fig. 3 shows an alternative construction having a depression 107 in its base, with a bridge member 108 and securing spring 109. A pouring spout 111 adapted to bear against the tyre 112 is set at an angle to the container.
Patent GB-902187-A (GB)
Title: Fluid pressure control valve mechanism
Inventor: RADCLIFFE FRANK
IPC: B60T8/34
Filed: 1957-12-03
Abstract: 902,187. Hydraulic brakes. DUNLOP RUBBER CO. Ltd. Nov. 21, 1958 [Dec. 3, 1957], No. 37558/57. Class 103 (1). [Also in Group XXIX] An hydraulic control valve device controlling the actuation of vehicle brakes comprises a housing 10, Fig. 2, having connections 29, 32, 30 to a supply of pressure liquid, brake-actuating cylinders 14, Fig. 1, and exhaust respectively and interconnected exhaust and inlet valve members 28, 42 operable by a member 12 on depression of a pedal 11. A spring-loaded piston 34 slidable in the housing is movable in the event of the failure of pressure liquid supply to operate the brakes. On failure of the pressure liquid supply a non- return valve 41 closes and traps liquid in a housing chamber 40, which on further depression of the pedal 11, is transferred through the valve 42, ports 38 and the connection 32 to the brake cylinders to operate the brakes. Inertia mechanism automatically preventing overbraking and consequent slipping or skidding of the road-wheels, as described in Specification 861,189, is also fitted the housing including a further connection 33 therefor. On the opening of an inertia-operated valve 27, liquid in the associated brake cylinder returns to the housing through a line 23 and the connection 33, passes through recesses 45, 46 in the housing and stem of the valve member 28, respectively, and thence through radial ports in the piston 34 to the exhaust connection 30. To modulate the supply and exhaust of pressure liquid to and from the brake cylinders a spring- loaded piston 25 having a helical groove 26 around its periphery is fitted in the line 22 between the connection 32 and the brake cylinders. Specification 868,822 also is referred to.
Patent GB-876700-A (GB)
Title: Automatic direction finder
IPC: G01S1/02
Filed: 1959-11-05
Abstract: 876,700. Radio direction-finders. BENDIX CORPORATION. Nov. 5, 1959 [Dec. 3, 1958], No. 37583/59. Class 40(7) In an automatic radio direction-finder a loop aerial 12 is automatically rotated into its null position of modulating the signal received by the loop at 400 c/s. in a chopper circuit 27 and applying it to a phase detector 17 together with the 90 degrees phase shifted output from an oscillator 15 which is automatically phase locked to the signal received of a sense aerial 11 by a control circuit comprising a phase detector 18, low pass filter 19 and reactance tube 21, the output from the phase detector 17 comprising a 400 c/s. error signal which is applied together with a 400 c/s. reference voltage to a two-phase motor 29 controlling the loop aerial 12. The tuning controls of the aerial amplifiers 13 and 14 are ganged with the frequency control of the oscillator 15. Any identification or communication modulation signals on the received carrier is detected by applying the sense aerial signal together with an output from the oscillator 15 to a mixer amplifier 22 whose output is applied through a low-pass filter 24 and amplifier 25 to a speaker 26. The phase detectors 17 and 18 may be as in Fig. 2 (not shown).
Patent GB-1506010-A (GB)
Title: Interpolating digital filter
IPC: H03H17/00
Filed: 1975-09-12
Abstract: 1506010 Digital filter PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Sept 1975 [16 Sept 1974] 37641/75 Heading H3U An interpolating digital filter to generate binary output code words at a frequency f 2  which are related in a predetermined manner to a sequence of binary input code words occurring at a frequency f 1  and with f 2  an integral multiple m off, comprises a storage device, 9, to store N successive input code words, a multiplier 11 that forms within one input sampling period, 1/f 1 , m sets of products of the N input code words and m different sets of weighting factors corresponding to the relation between input and output code words, an accumulator 12 coupled to the multiplier 11 to generate m output code words with one input sampling period, each code word being at least equal to the mathematical sum of all of the products of one particular set of products. In the filter as defined the storage device 9 has a periodically varying storage time and is controlled by a clock 7 and is provided with an output circuit which, within one input sampling period 1/f 1 , supplies the input code words which are held in the store 9 a plurality of times m to the multiplying device 11 with this plurality being the same as the integral multiple relating f 2  to f 1 . The store 9 can be a shift register with the output coupled both to the multiplier and to the input of the shift register, and there may be a feedback 14 from the input of the last stage back to the input of the register so that under control of the clock, the input of the register can either be connected to the output of the register or to the penultimate stage output to vary the storage time. The clock can include a generator of regularly spaced shift pulses 15 and a counter 20 which after counting a given number, at least N, of shift pulses supplies a pulse to a second counter 21 which after receiving m pulses from the first counter 20 returns to the rest condition. The counters may suppress at least one shift pulse from a cycle of shift pulses (Fig. 4, not shown) to vary the storage time. The weighting factors may be conventionally stored in a ROM 8 driven by the outputs of the two counters 20, 21.
Patent GB-1057485-A (GB)
Title: Improvements in or relating to fire detectors
Inventor: COLLINS JACK BERTRAM
IPC: G08B17/06
Filed: 1962-10-05
Abstract: 1,057,485. Photo-electric flame detection. WILKINSON SWORD Ltd., and GRAVINER MANUFACTURING CO. Ltd. Dec. 30, 1963 [Oct. 5, 1962], No. 37715/62. Heading G1A. A fire detection system for ships or buildings comprises a number of gas-discharge photo-cells which respond to ultraviolet radiation and are associated with capacitors C1 to form relaxation oscillators. The capacitors are normally charged, and when a cell becomes ionised a neon lamp in series therewith strikes and relay RL energizes. As the associated capacitor C1 discharges, the cell and neon lamp become quenched until the charge on the capacitor C1 builds up again. The neon lamp thus flashes on and off. Relay RL which is slugged by a shunt capacitor C2 remains up, however, and controls a ball through a further relay RLA.
Patent GB-1476647-A (GB)
Title: Electro-erosion pulse generator circuit
IPC: B23H1/02
Filed: 1974-08-29
Abstract: 1476647 Automatic control of electro-erosion ATELIERS DES CHARMILLES SA 29 Aug 1974 [31 Aug 1973] 37735/74 Heading G3R [Also in Divisions B3 and H3]  An electro-erosion pulse generator circuit comprises a capacitor C connected in series with an inductive coil L to a D.C. source B, a switch Th for discharging the capacitor C into a discharge circuit, comprising a pulse transformer Tl connected to the spark gap 3, when the capacitor voltage reaches a predetermined level and means 5 for adjusting the supply voltage of the capacitor charging circuit to maintain the current in the coil L within a predetermined range. In one embodiment, a thyristor Th is triggered to cause dischage of the capacitor C when the voltage across the capacitor C reaches a predetermined value set by a potentiometer 4. The thyristor Th is cut off when the capacitor discharge voltage is negative. The voltage across a resistor R is applied to two comparators 8, 10 which are adjustable by potentiometers 7, 9 and which are connected to a switch S via gates 12, 13 and a flip-flop 14. The potentiometers 7, 9 are set such that the switch S is opened when the current in resistor R is greater than a first predetermined value and closed when the current is less than a second, lower value. In another embodiment Fig. 6, (not shown) the charging voltage of the capacitor C is controlled by a transistor (33) which is controlled by a differential amplifier (30) connected to a resistor voltage measurer (32) and a potentiometer (31) providing the desired voltage signal. In a further embodiment, Fig. 3 (not shown) the time during which the capacitor voltage is negative is detected by a Schmitt trigger (15) which actuates two monostables (16, 17) connected to a flip-flop (18) via gates (19, 20, 21). The switch S is closed when this time is greater than the unstable duration of the monostable (16) and opened when less than the unstable duration of the monostable (17). In another embodiment Fig. 5 (not shown) two capacitances, inductive coils and thyristors are provided, the latter being controlled in turn by AND gates (24, 24') receiving signals from a counter 25 as well as the comparators 5. The switch S may alternatively be opened and closed as a function of the time interval between two successive discharges of the capacitor.
Patent GB-366218-A (GB)
Title: Improvements in or relating to truck attachments for compressed gas cylinders
IPC: B62B5/00
Filed: 1930-12-16
Abstract: 366,218. Hand - trucks. HARRIS, W. G. and BIRD, O. H., Albert Road, St. Philips, Bristol. Dec. 16, 1930, No. 37856. [Class 108 (i).] A truck is adapted to be attached to a gas cylinder to enable the latter to be wheeled about and also to be stood vertically. The truck may comprise jaws b, Figs. 1 and 2, adapted to be clamped to the cylinder by means of a divided hollow axle c and a bolt d with ring-nut e, k being the foot to maintain the cylinder upright if desired. Fig. 4 shows a truck having a solid axle f and Fig. 6 shows the gas cylinder h in upright position with the truck attached.