baber/WOPTO huggingface dataset:
Patent GB-1142275-A (GB)
Title: Separation of trivalent 4f rare earths from molten fluoride compositions with uf
IPC: G21C19/50
Filed: 1967-07-10
Abstract: 1,142,275. Rare earth metal fluorides. UNITED STATES ATOMIC ENERGY COMMISSION. 10 July, 1967 [7 Dec., 1966], No. 31622/67. Heading C1A. [Also in Division G6] Rare earth trifluorides are removed from a fluoride melt by contacting the melt with solid uranium trifluoride. The melt may be saturated with UF 3  and then cooled to form a UF 3  precipitate which carries down the rare earths. Alternatively in a continuous process the melt is forced through a column packed with solid UF 3 . In examples cerium or neodymium or samarium is removed from LiF-BeF 2 , and lanthanum is removed from LiF-BeF 2 -ZrF 4 . The process may be used for removing fission products from nuclear reactor fuel.
Patent GB-977055-A (GB)
Title: Plant or flower support
IPC: A01G9/12
Filed: 1963-08-09
Abstract: 977,055. Plant supports. E. KERSHAW. Aug. 9, 1963, No. 31652/63. Heading A1E. An adjustable plant support comprises a plurality of sticks or rods 2, 3, adjacent sticks or rods being connected together by a sleeve 4 so as to be slidable relative to each other and a stick or rod at the end of the support being provided with a plant-supporting member 5 formed with a U-shaped recess 6 in which the stem of the plant can engage. The sticks or rods, sleeve 4 and member 5 may be made from a synthetic plastics material or the sleeve 4 may be of hard rubber and the sticks or rods of wood.
Patent GB-392950-A (GB)
Title: Improvements in or relating to direct current commutator electric machines
IPC: H02K13/14
Filed: 1931-11-18
Abstract: 392,950. Improving commutation in dynamo-electric machines. PLATEN, B. C. VON, 99, Ostermalmsgatan, Stockholm.-(Assignee of Glesum Internationale Patentakt.-Ges. ; Vaduz, Liechtenstein.) Nov. 18, 1931, No. 31978. Convention date, Nov. 19, 1930. Addition to 388,061. [Class 35.] In the method of improving commutation in an open-coil continuous current machine, as described in the parent Specification and comprising two impulse paths of unidirectional action which influence the excitation of the auxiliary commutation generator through amplifying relays, relays are connected in cascade and/or in parallel in each impulse 'path. The armature winding 6 is connected to rotating commutator segments 2, 3 through slip-rings 4, 5, and one of the commutator brushes is in two parts 14, 15 connected by a condenser 16 and potentiometer resistance 17. Two circuits connected to the potentiometer 17, include rectifying valves 40 acting in opposite directions, three electrode valves 24, and cascaded valves 46, the cathodes 45 of which are connected to the anodes 23a of the valves 24 through resistances 44. These circuits control the current in oppositely-acting field windings 9, 10 of a commutation generator 8 having a winding 7 in series with the main armature winding 6. In normal conditions, current from a potentiometer 49 connected across supply terminals 29, 30 flows through the valves 24 and resistances 44, but in the event of under or over-commutation, a negative potential is applied to one of the grids 23 causing a reduction in current in the corresponding resistance 44 and so reducing the negative bias of the grid 47 of the connected valve 46. A current accordingly flows through that valve so that the corresponding field winding 9 or 10 of the commutation generator is energized. Instead of the resistance coupling between the valves, a transformer coupling 62, as in Fig. 2, may be employed. Condensers 27 and grid leaks 28 are used in connection with the valves 24 and condensers 31 are connected across the windings 9, 10. Electromagnetic relays may be employed. According to the Specification as open to inspection under Sect. 91, a rectifier is inserted between the battery 63 and grid 47 in Fig. 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-910816-A (GB)
Title: Improvements in or relating to miniature sound tape recorders
IPC: G11B15/24
Filed: 1961-09-06
Abstract: 910,816. Driving sound tapes; associated working. VOCKENHUBER, K. Sept. 6, 1961 [Sept. 23, 1960], No. 31981/61. Class 40 (2). A pivoted motor 1, latched out of contact with means driving a sound tape 31 by members 8, 9 is started and pulled into engagement by a spring 6 when either of two starting switches 17, 19 are operated to energize a solenoid 10. A stalk 13 operates a change-over switch 14 to bring into operation stop-foil means 29 to further energize the solenoid which can then stop the motor by opening contacts 11, 12. The motor may then be re-latched out of position by hand-operated means 32. For associated working with a kinematograph camera, the switch 19 may be remotely arranged to operate with the camera release, a transformer 21 in the recording head circuit putting a " start " mark on the tape when the solenoid 10 is first energized. Monitor earphones 27 may also be connected. The switch 17 starts the recorder without putting a " start " mark on the tape.
Patent GB-1531337-A (GB)
Title: Feed leg for a percussive drilling machine
IPC: E21B19/087
Filed: 1976-07-30
Abstract: 1531337 Feed leg for percussive drill TORQUE TENSION Ltd 21 June 1977 [30 July 1976] 31992/76 Heading B4C A feed leg for a percussive drilling machine comprises a cylinder 12 in which is slidably disposed a piston 10 to which is connected a piston rod 8, the cylinder being provided with an inlet port 36 for admitting hydraulic fluid into a working chamber 7 to extend piston rod 8, a variable-volume closed chamber 46 containing compressible fluid and separated from the working chamber by a movable wall 40, and means 14 at one end of the feed leg for connecting the leg to the drilling machine. The fluid, e.g. air or nitrogen in chamber 46 absorb the shock of the recoil of the drill. A second hydraulic fluid inlet 38 may be provided to retract piston rod 8. In the embodiment of Fig. 3 (not shown) variable-volume chamber 46 is defined by the interior of hollow piston rod 8 and auxiliary piston 40. In a further embodiment the movable wall is a flexible member, e.g. a bellows or a rubber bag.
Patent GB-833636-A (GB)
Title: Improvements in vehicle towing devices
IPC: B60D1/06
Filed: 1955-11-09
Abstract: 833,636. Ball-and-socket couplings. WILSON, A. Nov. 7, 1956 [Nov. 9, 1955], No. 32040/55. Class 103(5) A ball-and-socket coupling comprises, a socket member 6 pivoted to the hitch 2 at 5 and spring biased to the socket open position, and a wedging block 11 mounted on a shaft 12 forming part of a handle grip which is pulled downwardly by a spring 16 to engage the block 11 behind the member 6 in a ball engaging position as shown. The ball may be released by lifting the handle 14 and the shaft 12 to raise the block 11 against pins 26 on the member 6 so that the member may pivot and open the socket. A spring-pressed locking plunger passing through the boss 15 and into a hole in the boss 13 may be provided.
Patent GB-469300-A (GB)
Title: Improvements in a process for obtaining alcohol and/or yeast by fermentation of liquids containing carbohydrate
IPC: C12M1/16
Filed: 1936-11-23
Abstract: 469,300. Alcohol; yeast; aerating liquids. NAAMLOOZE VENNOOTSCHAP INTERNATIONALE SUIKER EN ALCOHOL COMPAGNIE INTERNATIONAL SUGAR & ALCOHOL CO. ISACO. Nov. 23, 1936, No. 32080. Convention date, Nov. 22, 1935. [Classes 14 (i) and 14 (ii)] Alcohol and /or yeast are obtained by a fer mentation process ir which a circulating carbohydrate - con taining liquid trickles down a tower over filling bodies of knowr kind, e.g. Raschig rings, or over fixec or rigid frequently crossing installed elements. As shown a tower 1 contains filling bodies 2. Air or other gas may be introduced at 5. The liquid passes through container 8 with pipe coil 9 for regulating the temperature, and part of the liquid may be drawn off as by pipe 12 and replaced by fresh wort.
Patent GB-876522-A (GB)
Title: Improvements in or relating to the preparation of metal members prior to an electric-arc butt-welding operation
Inventor: DONELAN JAMES ARTHUR
IPC: B23K9/025
Filed: 1958-10-09
Abstract: 876,522. Welding by fusion. PIRELLIGENERAL CABLE WORKS Ltd. Oct. 9, 1959 [Oct. 9, 1958], No. 32233/58. Class 83 (4). [Also in Group XXVIII] Members to be arc butt welded are prepared by scratch bushing each member along a margin of its surface in proximity to but excluding the actual abutting surface. A tube 1 is prepared for longitudinal butt welding by a machine having two rotary wire brushes 2 mounted on spindles 4 adjustable as indicated by the arrows C, D, E.
Patent GB-896718-A (GB)
Title: Positive temperature coefficient thermistor materials
IPC: C04B35/468
Filed: 1960-09-20
Abstract: 896,718. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 20, 1960 [Dec. 28, 1959], No. 32306/60. Drawings to Specification. Class 37. A temperature-sensitive resistor with a positive temperature coefficient and a sharp rise in its resistivity above about 60 F. has the sintered composition with from 0.01 % to 1% by weight of lead oxide intermittently admixed therein, where M represents at least one or both of yttrium and cerium, X has a value from 0.003-0.03 and y has a value not larger than 0.25. Various compounds with specific values of x and y are listed in the Specification. The effect of the lead is to increase the power handling capacity of the device. The barium oxide may be derived from a barium-engendering salt. In an example titanium dioxide and zirconium dioxide were admixed in mol proportions of 0.94 and 0.06 respectively. To the mixture was added 0.985 mols of barium carbonide and 0.015 mols of yttrium nitrate and sufficient lead sulphate (about 0.64% of the weight of the batch) to yield 0.47% by weight of lead oxide. The ingredients were mixed in water in a porcelain bowl mill. The slurry was allowed to settle, the supernatant water evaporated and the resulting mud dried at 80 C. in air. The dry powder produced was placed in a zirconia crucible and heated in a furnace while exposed to the atmosphere for two hours at 1000 C. The calcined product was wet-milled in a porcelain ball mill for eight hours and dried, pulverized and screened and mixed with an emulsion of polyvinyl alcohol. The powder mixture was pressed at 15,000 pounds per square inch into a cylindrical pallet which was sintered in argon at 1250 C. for two hours. The resulting cylinder was heat-treated in circulating air at 1200 C. for one hour. The resulting cylindrical body was of 0.375 inch diameter and 0.062 inch long and was coated at both ends with an alloy of indium lead and silver applied ultrasonically to which electrodes were soldered. In a further example described in detail cerium nitrate was substituted for the yttrium.
Patent GB-665205-A (GB)
Title: Apparatus for producing jacquard or similar cards from coloured rectangular-based patterns
Inventor: STARLING PHILIP PERCY
IPC: D03C19/00
Filed: 1948-12-14
Abstract: 665.205. Controlling jacquard punching machines. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Dec. 14, 1949 [Dec. 14, 1948], No. 32356/48. Class 142(i) A squared paper pattern 4 passes between a measuring roller 3 and a feed roller (not shown) and is fed under a cursor 6, the apparatus being started by the operator pressing a button corresponding to the colour of the squares; when the colour under the cursor changes, the operator presses a button to stop the feed. The number of squares of the colour is registered by an electrical counter actuated from an impulse cam 8. The operator then presses a button corresponding to the next colour appearing under cursor and the operation is continued until the whole pattern has been scanned. Each time the feed is stopped at the end of a strip of a particular colour, the result automatically controls a punching machine and the counter returns to zero. The total number of squares of each colour is registered by other counters, one for each colour, and a further counter gives the grand total of squares counted (to check that no Dart of the pattern has been missed). If the apparatus is allowed to overrun a change of colour, the operator can stop it without it actuating the punching machine. Buttons for controlling the punching machine manually are provided. The measuring roller 3 is narrow, and idler rollers 5 help to press the pattern against the feed roller. The speed of the feed roller may be variable to suit patterns of different complexity. Discrepancies between the size of the squares and the spacing of the cam lobes may be compensated by interposing a differential gear between the measuring roller 3 and the impulse cam 8. The apparatus may print a record of its operations.
Patent GB-667156-A (GB)
Title: Improvements in or relating to brake-blocks for bicycles
IPC: B62L1/00
Filed: 1949-12-16
Abstract: 667,156. Bicycle brake blocks. BOIDIN, P. Dec. 16, 1949 [Dec. 17, 1948], No. 32392/49. Class 103 (i). A brake-block 1 for a bicycle is secured in its holder 3 by means of a hook fastener in the form of a wire member 4 which passes through a longitudinal hole in the block. One end of the member 4 is secured by being hooked around the corresponding end of the holder, and the other end by engagement with a notch 5 in the holder, the brake block thus being removable without detaching the latter from the brake transmission gear.
Patent GB-893923-A (GB)
Title: Movements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1960-04-26
Abstract: The invention comprises a compound having the formula <FORM:0893923/IV (b)/1> wherein R is fluorine or lower alkyl having 1-8 carbon atoms and R1 is lower alkylene containing 2-3 carbon atoms in the chain and a process for the preparation thereof which comprises selectively ketalising a compound having the formula <FORM:0893923/IV (b)/2> with a lower-alkylene glycol having 2-3 carbon atoms connecting the hydroxy groups in the presence of an acid catalyst at a temperature from about 10 DEG C. to about 40 DEG C. Specification 874,375 also is referred to.
Patent GB-968377-A (GB)
Title: Improvements relating to valves for light load protection of boiler feed pumps
Inventor: BARKER JACK
IPC: F22D5/18
Filed: 1960-09-22
Abstract: 968,377. Fluid-pressure servomotor systems. HOPKINSONS Ltd. Sept. 20, 1961 [Sept. 22, 1960], No. 32559/60. Heading G3P. A leak-off valve for a boiler feed pump which opens when the discharge from the pump falls below a predetermined level comprises a valve housing 1 having a flow passage controlled by a sliding gate. The valve member comprises loaded discs 10, 11 which, in the closed position shown, allows inlet pressure to flow into the valve housing and act on the inner forces of pistons 16, 17 and pass to outer chambers P 1 , P 2  through throttled passages 30. The chambers P 1 , P 2  are connected by lines 27, 28 to a relay valve 29 comprising two valves C 1 , C 2  which when open connect the chambers to drain. The relay valve is actuated by a solenoid 34 which is deenergized when the pump outflow falls below a predetermined valve to open valve C 1  and close valve C 2 . Chamber P 2  is then open to drain and the pressure acting on the inner face of piston 17 opens the valve at a rate controlled by the throttled passage 30 of piston 16. When the valve is opened, a straight through flow is provided by orifice 18. Valves 21, 22 at opposite ends of the piston rod close lines 27, 28 at the extreme positions to prevent loss of actuating liquid,
Patent GB-1275838-A (GB)
Title: Spring loaded non-return valve
IPC: F16K15/18
Filed: 1970-07-06
Abstract: 1275838 Valves ROBERT BOSCH GmbH 6 July 1970 [28 Aug 1969] 32574/70 Heading F2V Flow from port 11 to port 12 of the valve assembly shown, takes place when the supply pressure exceeds the loading of a spring 9 acting upon a main member 3, such loading being applied to the main valve member through to intermediary of a second valve member 7. However, when it is desired to control flow from port 12 to port 11, a pilot-pressure is supplied to the left-hand end of a piston 17 which then acts, through the intermediary of a stem 14, to first move the second valve member 7 off its seating on the main valve member 3, and then to move valve member 3 off its seating 4 formed within a cylindrical sleeve 2. Pilot pressure supplied to an annular channel 19 is communicated to the piston end initially through radial and axial piston passages 20 and 21. Subsequently, as the piston 17 moves to the right, radial passages 20 are moved out of communication with channel 19 and further radial passages 23, of a diameter less than that of passages 20, are brought into communication with channel 19. The arrangement permits the pilot pressure to be supplied to the piston end in a manner such that the pressure force acting on the piston end is decreased as the piston moves towards the end of its actuating stroke.
Patent GB-175741-A (GB)
Title: Improvements in or connected with apparatus for mercerising rovings and other cotton materials
IPC: D06B7/00
Filed: 1920-11-19
Abstract: 175,741. Nelson, A. Nov. 19, 1920. Zigzag-roller type; spraying travelling materials; vats, heating contents of; plant for series of operations; vats, covers for; vats, illuminating and inspecting contents of. - In a mercerizing- machine &c., rovings &c. are passed in rope or chain form through open tanks B, C, next through mercerizing-tanks D surmounted by sealed air chambers, and then through washing- tanks E containing boiling water and surmounted by sealed steam-chambers e having counterbalanced covers. The material is then drawn through a drying-chamber or over drying-cylinders by means of driven nip-rollers, and is coiled into cans. Yarns may be treated, and by filling the last washing-tank with size, the materials may also be sized. The material passes between nip-rollers b and under rollers b<1>, c<1>, d<2>, and drums e<4> in the tanks. It also passes between squeezing-rollers b<2>, of which the upper rollers can be separated from the lower, over rollers d<1> in the air-chambers, these chambers being provided with air-tight covers which may be in sections, and over drums e<3> in the steam-chambers. The drums e<4>, e<3> are formed by tubular staves, and two immersion drums e<4> are arranged close to each drum e<3>. The material passes between squeezing-rollers e<5> and is there sprayed with boiling water. The tank B contains hot or cold water or caustic soda, the tank C contains cold caustic soda, and the tanks D contain cold caustic soda supplied from a refrigerator plant, and cooled in the tank by refrigerator pipes, caustic soda from the tank C being pumped back to the refrigerator plant. Means are described for supplying water to the tanks, and steam to the steam-chambers, and for boiling the water. Some of the tanks may be coupled together. The squeezing-rollers may be all driven through bevelgearing and a variable-speed gear. The lower rollers may be of metal, and the upper rollers of indiarubber or other yielding material. A conduit b<4> connects the tanks B, C. The tanks D may be provided with eight glasses and be illuminated by electric or other lights in detachable covers, so that the material may be inspected. The Provisional Specification refers to a chaining-machine for collecting the rovings together into the form of a chain, and also to a de-chaining machine for subsequently separating the rovings. It also refers to the mercerizing of fabrics.
Patent GB-182394-A (GB)
Title: Improvements in firebars for furnaces
IPC: F23H13/00
Filed: 1921-12-06
Abstract: 182,394. Gibson, W., and Pocock, E. J. Dec. 6, 1921. Fire-bars.-Bars of the type having pockets for the reception of refractory material cast integral with the web are constructed with the pockets a of rhombeid shape, to prevent damage by the clinkering tool, the air-spaces b between the pockets being inclined to the axis of the bar, as shown in Fig. 1. The bars are spaced apart by the lugs e to form longitudinal air-spaces c. Fig. 3 shows a section through a pocket, the inner edge of the wall of the pockets being rounded. When the fire-bars are applied to a mechanical stoker, the sharp edges of the pockets reduce clinkering.
Patent GB-534059-A (GB)
Title: Improvements in or relating to dispensing envelopes
IPC: B65D83/04
Filed: 1939-12-21
Abstract: 534,059. Envelopes. REINEMAN, H. H. Dec. 21, 1939, No. 32694. Convention date, Dec. 22, 1938. [Class 146 (ii)] Dispensing envelopes for pills or capsules have an unsealed dispensing opening which is folded down to underlie a retaining flap extending from the free edge of one of the envelope walls. The envelope blank is folded about the lines 13, 14, 21 with a sealed overlap 18, one wall 16 being extended beyond the line 24 to form the flap 23. The sealing-flap 27 when secured follows the outline of flap 23 to reinforce it. The front and rear walls 32, 35 of the dispensing opening have convex and concave edges 33, 34 and a crease 38 to facilitate folding under flap 23.
Patent GB-750363-A (GB)
Title: Substituted piperazides containing the aziridyl radical and the preparation thereof
IPC: C07F9/6509
Filed: 1953-11-25
Abstract: The invention comprises substituted piperazines of the general formula <FORM:0750363/IV(a)/1> wherein R represents the carbomethoxy, carboethoxy, carbo-n-propoxy, carboethoxymethyl or <FORM:0750363/IV(a)/2> radical, and R1 represents the <FORM:0750363/IV(a)/3> or <FORM:0750363/IV(a)/4> radical, R11 being a hydrogen atom or the methyl radical, and the preparation thereof by reacting a piperazine compound of the general formula <FORM:0750363/IV(a)/5> or <FORM:0750363/IV(a)/6> with aziridine or 2-methyl-aziridine in the presence of an acceptor for hydrogen chloride.  In the examples the following compounds are prepared:-1 - carbomethoxy - 4 - (aziridyl - carbonyl - 11) - , 1 - carboethoxy - 4 - (21 - methylaziridyl - carbonyl - 11) - , 1 - carbopropoxy - 4 - (aziridyl - carbonyl - 11) - , 1 - carboethoxymethyl - 4 - (aziridyl - carbonyl - 11) -, 1 - carbomethoxy - 4 - [di - (aziridyl - 11) - phosphono] -, 1 - carboethoxy - 4 - [di - (aziridyl - 11)-phosphono] - , 1 - carboethoxy - 4 - [di - (21 - methylaziridyl - 11) - phosphono] -, and 1,4 - bis-[di-(aziridyl-11)-phosphono]-piperazine. 1 - Carboethoxymethyl - 4 - chloroformyl - piperazine is prepared by the action of ethyl chloroacetate on piperazine to form N-monocarboethoxymethyl-piperazine which is then chloroformylated with phosgene.  1 - Carbomethoxy - 4 - phosphoryloxydichloride-piperazine of the formula <FORM:0750363/IV(a)/7> is prepared by reacting N-monocarbomethoxypiperazine with phosphorus oxychloride.  1,4 - Bis - (phosphoryloxydichloride) - piperazine of the formula <FORM:0750363/IV(a)/8> is prepared by reacting piperazine and phosphorus oxychloride.