baber/WOPTO huggingface dataset:
Patent GB-560497-A (GB)
Title: Removal of oxygen from olefines
IPC: C07C7/148
Filed: 1942-09-02
Abstract: Normally gaseous olefines are treated to remove oxygen by passage at elevated temperature through a series of two or more vessels containing a catalyst such as copper, cobalt or platinum in the form of metal or reduced oxide and separated by trap vessels maintained at a lower temperature, preferably room temperature, which may contain an absorbent, e.g. alumina gel, caustic potash, silica gel or active charcoal, for the condensate produced.  Each catalyst vessel is found to remove about 65-75 per cent of the oxygen entering it.  Preferably a pressure of 25-1500 atm. is used and a catalyst temperature of 75-200 DEG  C. In an Example, three 400 c.c. copper-lined catalyst tubes filled with reduced copper oxide and two interposed 700 c.c. traps filled with alumina gel are connected in series, and ethylene containing 70 parts per million of oxygen is introduced at a rate of 5000 volumes, at ordinary temperature and pressure, per hour per volume of catalyst tube space.  The catalyst tubes are maintained at 100 DEG  C., the traps at room temperature, and the pressure is 1000 atm.  The oxygen content is progressively reduced by each catalyst tube to 18, 5 and finally less than 1 part per million. Comparative results using one catalyst tube only, and two such tubes with and without a trap between are given.
Patent GB-1387978-A (GB)
Title: Self-valving fluid reservoir and bubble trap
IPC: F16L55/00
Filed: 1973-03-14
Abstract: 1387978 Oxygenating blood BAXTER LABORATORIES INC 14 March 1973 [6 April 1972] 12391/73 Heading ASR [Also in Divisions F2 and G3] A self-valving fluid reservoir for connection between a membrane blood oxygenator (12) and a pump (14) has a flexible reservoir chamber 28 sealed at 33 about a flow conduit 20, 22 formed with a transverse partition 30 and lateral upstream and downstream ports 26, 32. The chamber 28 expands and contracts with variations of flow through the oxygenator and pump and collapses to occlude the ports 32 on excess suction from the pump. Gas may be withdrawn through port 34. The speed of the pump may be controlled by the walls of the chamber which act via a pivoted leaf (44), rheostat (48) and motor controller (52) on the pump-driving motor (M), the quantity of blood in the chamber thus remaining substantially constant. The oxygenator and pump are each connected to a patient's blood stream by a cannula.
Patent GB-1341536-A (GB)
IPC: B01D11/04
Filed: 1972-03-16
Abstract: 1341536 Reverse-osmosis apparatus RHONEPOULENC SA 16 March 1972 [19 March 1971] 12396/72 Heading B1X Fluid separation apparatus comprises a fluidtight stack of members including a plurality of even frames defining even chambers, a fluid inlet in communication with the even chamber at one end of the stack, a plurality of odd frames of different structure from the even frames stacked alternately with said even frames and defining odd chambers, a plurality of semi-permeable membranes stacked one between each adjacent odd and even frame, at least one passage in said odd frames connecting the adjacent even chambers in series, a first fluid constituent outlet connected to each odd chamber and a second fluid outlet in communication with the even chamber at the other end of the stack. As shown a series of odd frames 7 and even frames 6 is held between end plates 4, 5. Each odd frame has a membrane on both sides, the membrane passing through the slit 14 near one end of the frame, and a passage 12 not covered by the membrane; in alternate odd frames this passage is at opposie ends. Fluid to be treated enters the stack at 8, filling the even frames, and leaves at 9; some part thereof passes through the membranes into the odd chambers from which it leaves by means of an opening 22 at the end remote from the passage 12. The apparatus may be used for water softening, ultra filtration or gas separation.
Patent GB-1249261-A (GB)
Title: Mannich-bases
IPC: C07D319/20
Filed: 1970-03-16
Abstract: 1,249,261. Mannich bases. BEIERSDORF A.G. 16 March, 1970 [15 March, 1969], No. 12449/70. Heading C2C. Novel compounds of formula in which R 1  and R 2  are hydrogen, hydroxyl, lower alkyl, alkoxy or acyloxy groups, n is 0, 1 or 2 and A is a methylene group or a group R 3 R 4 C< where one or both of R 3  and R 4  are alkyl groups, or n is 1 and A is oxygen or sulphur, and R 5  is an arylalkyl, aryloxyalkyl or arylthioalkyl group, in which the alkyl portion is constituted by a straight or branched chain alkyl residue containing 2 to 4 carbon atoms, optionally substituted by a hydroxyl group, and the aryl portion comprises a phenyl, naphthalene or thiophene residue optionally substituted by one or more substituents, selected from halogen atoms, hydroxyl groups. lower alkyl and alkoxy groups, or in which two neighbouring carbon atoms of the said residue are linked in a ring via a methylene dioxy group, or R 5  is a group of the formula wherein m is 1 or 2 and acid addition salts thereof, are prepared by reaction of formaldehyde or a polymeric form thereof, an amine H 2 NR 5  and a compound of formula optionally with salt formation. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having strong α-sympathicolytic activity comprise an above novel compound or salt and a carrier therefore.
Patent GB-792426-A (GB)
Title: Method and apparatus for aging or electroforming semi-conductor devices
IPC: H01L21/18
Filed: 1955-04-29
Abstract: 792,426. Semi-conductor devices. PHILCO CORPORATION. April 29, 1955 [April 29, 1954], No. 12464/55. Class 37. A method of ageing crystal diodes &c. to attain optimum operating characteristics comprises applying to the crystal a series of short voltage pulses of progressively increasing amplitude, and during the interval between pulses applying a second separate or measuring voltage to the crystal to obtain a voltage versus current characteristic which indicates the progress of the ageing process. The method, described for an N-type germanium crystal having a titanium whisker, produces a slight weld between whisker and crystal and results in a decreased forward resistance and an increased backward resistance, and the noise figure is improved. The crystal 10, Fig. 1, is connected to the moving arm 11 of a rapidly vibrating switch 12 and makes alternately between a contact 15 in an ageing circuit comprising a battery 21, current limiting resistor 22, potentiometer 23 &c., and a contact 16 in a measuring circuit 31, 32, the voltage from the transformer 31 being applied across the crystal 10 and resistance 32. The measuring voltage across the crystal 10 from the circuit on contact 16, and the voltage across the resistor 32, which gives a direct indication of current in the crystal 10, are applied to terminals H and V, respectively, of an oscilloscope 35 to give a display curve A, Fig. 3, representative of the crystal characteristic. By altering the position of potentiometer 23 the ageing voltage across the crystal 10 may be varied and also the characteristic shown on the oscilloscope. This alteration is continued until curve A as determined by the measuring circuit, coincides with a desired optimum characteristic curve B which may be marked on the oscilloscope, at which stage the ageing process is ended by closing a switch 20 to short out the potentiometer 23 and reduce the voltage across the crystal 10 to zero. In a modification (Fig. 4, not shown), the potentiometer arm is electrically driven, the ageing process being automatically stopped by a relay energized by the voltage across the resistance 32, which relay operates a switch shorting out the potentiometer and reducing the voltage across the crystal to zero. In a modification, apparatus may be used for continuously producing an indication of the noise figure of the diode, and in an embodiment utilizing automatic control electronic means may be used to sweep the ageing voltage through its cycle.
Patent GB-476163-A (GB)
Title: Resilient product and method of manufacture thereof
IPC: A47C7/24
Filed: 1936-05-02
Abstract: 476,163. Indiarubber. BORST, A. J. May 2, 1936, No. 12481. [Class 70] A resilient product is obtained by mixing short strain - resisting elements with rubber or other resilient vulcanizable material, exerting pressure on the mass to reduce it to a thin sheet and to cause the elements to trend in a general direction and to be distorted or deformed in the plane of the sheet, and building up sheet upon sheet to the thickness desired or into circular form, the - laminations being bonded together by vulcanization. The strain-resisting elements may be textile cords, threads or strips, and the rubber may be crude, reclaimed or synthetic. It is preferred to use the core of old rubber tyres, belts, hose or the like. This material is chopped up, passed through a mill, if desired with addition of rubber, a vulcanizing agent, an accelerator, or a lubricant, until the strands trend in the same direction, and the sheet is then reduced in thickness in a calender so as to flatten the strands. The laminated product may be used for bearings, packings, bumpers, or other purposes. For example, in producing a bearing, the sheet is built up on a mandrel and inserted into a mould 17. The mass is then forced down so that the lower end fills the undercut opening of a ring 16, and vulcanized by steam heating to bond the laminations together and to the supporting ring 16.
Patent GB-566714-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/36
Filed: 1943-08-03
Abstract: 566,714. Windscreen wipers. TRICO PRODUCTS CORPORATION. Aug. 3, 1943, No. 12518. Convention date, Sept. 17, 1942. [Class 138 (i)] In a windscreen wiper of the kind in which an extensible section 20, to which the bladecarrying member 22 is attached, is adjustably secured to a channelled section 13 connected to the drive-shaft 12 by-a latch 38, the parts 20, 13 are secured together in the adjusted position by means of a pivoted resilient lever arm 28 which has a part 32 bent away from the part 31. The part 31 is pressed against the section 20 by means of a spring 37 which engages the latch 38 as well as the end of the arm 28 when this end is passed through keeper members 34. In adjusting the device, the arm 28 is moved about the pivotal connection of a hook 29 on the arm about in-turned end portions 33 of the side walls of section 13 to assume a position shown by dotted lines 40, Fig. 1. The section 20 is then moved to the required position and the arm 28 is moved clockwise so as to bring the part 31 against the section 13, then outwardly to a position shown by lines 41, and finally inwardly so as to engage the keeper members 34. The part 31 acts as a brake shoe and may be so arranged as to engage the section 13 with line contact. The angle of the blade can be adjusted about the axis of a screw 24, Fig. 4, which presses the holder 22 against a disc 27 secured to the section 20, a lock-washer 26 being interposed between the parts 22, 27.
Patent GB-1376367-A (GB)
Title: Process for the production of cokes
IPC: C10B55/00
Filed: 1972-03-17
Abstract: 1376367 Coking oils C CONRADTY 17 March 1972 [5 April 1971] 12550/72 Heading C5E Coke with a small coefficient of thermal expansion and a high mechanical strength is made from a coal tar pitch having a S.P. of 75‹ to 80‹ C. (K.S.) by distilling the pitch under a vacuum of below 10 mm. Hg at a temperature up to 400‹ C., and coking the distillate under pressure, e.g. at 1 to 6 ats., and at a temperature of 450‹ to 550‹ C., vapours from the coking stage being condensed in a cooler above the coker and running back into the coker. In an illustrated example, the distillate is delivered to a second vacuum distillation step from which a residue and a light fraction are obtained, and it is the residue which is delivered to the coker, the light fraction being mixed with the residue from the first distillation stage to produce a recoverable hard pitch.
Patent GB-1080728-A (GB)
Title: Oscillating electromagnetic device
IPC: H02K33/04
Filed: 1966-03-23
Abstract: 1,080,728. Reciprocating motors. SPERRY RAND CORPORATION. March 23, 1966 [April 5, 1965], No. 12838/66. Heading H2A. The motor comprises a stator 55 with arcuate pole faces 58A, 58B and 59A, 59B and A.C. energized coils 56, 57, and a vibratory rotor unit 60 with complementary pole faces 75A, 75B and 76A, 76B; the stator pole faces are centred about the axis of a shaft 62 on which the rotor vibrates; the rotor unit comprises a laminated armature member 61 with the pole faces, which overlap the stator pole faces in the manner shown in the rest position, and an oscillator member 63 preferably made of a resinous plastic; the oscillator member 63 has two driving arms of which one, 64, is shown, for coacting with, e.g. dry-shaver cutters. For providing the correct degree of pole-face overlap, and the optimum degree of eccentricity of arms 64 relative to the cutters, the armature member and the oscillator member are relatively angularly adjustable and thereafter secured together. As shown, the spaced end hangers, of which one is shown at 68, of the armature member 61, each have an arcuate slot 67 (shown mostly in dashed lines) with serrated edges. A self-tapping screw 65 is inserted through the slot on one side and engaged with an undersize screw hole in the oscillator member 63; when the screw is screwed home the serrations are forced slightly into the plastic material of member 63.
Patent GB-1070308-A (GB)
Title: Pyridyl dihydroisoquinolines
IPC: H01J37/30
Filed: 1966-03-23
Abstract: Novel compounds of the formula <FORM:1070308/C2/1> wherein the 1-position of the isoquinoline ring is attached to the 3- or 4-position of the pyridine ring, and R1 is C1- 5 alkyl or benzyl, optionally substituted by halogen or CH3; R2 is C1- 5 alkyl or R1 and R2 together with the 3 carbon of the isoquinoline represent a 5-6-membered spirocyclic alkane ring; R3 is H, halogen or C1- 3 alkyl; R4 and R5 are H or C1- 3 alkyl, may be prepared by one of the following four methods, wherein R1-R5 are as defined above:  -(a) by cyclization, with elimination of water, of a compound of formula <FORM:1070308/C2/2> (b) by reacting a metal halide complex of a 4-cyanopyridine of formula <FORM:1070308/C2/3> with a compound of formula <FORM:1070308/C2/4> wherein one of X and Y is H and the other is halogen or OH, which may be esterified with a carboxylic or sulphonic acid; (c) by reacting a 4-cyanopyridine of the formula given above with a styrene of formula <FORM:1070308/C2/5> in the presence of a Lewis acid; or (d) by reacting a 4-cyanopyridine as aforementioned with a compound of formula <FORM:1070308/C2/6> wherein A and B are defined as for X and Y above, or together A and B represent a direct C-C bond, at elevated temperature in the presence of a cyclization agent.  2 - Chloro - 2 - methyl - 1 - phenyl propane is prepared by chlorination, e.g. with HCl, of dimethyl benzyl carbinol.  A pharmaceutical composition comprises a compound of the first formula given above, or a non-toxic salt thereof, together with a pharmaceutical carrier.  The composition has antiphlogistic, antipyretic, analgesic, spasmolytic or sedative properties, and suitably takes any conventional form for oral, parental or rectal administration.
Patent GB-289817-A (GB)
Title: Process and apparatus for decomposing coke-oven gas by cooling to low temperatures
IPC: C10K1/00
Filed: 1928-05-02
Abstract: 289,817. Ges. fur Linde's Eismaschinen Akt.-Ges- May 2, 1927, [Convention date]. Separating gases by liquefaction. - Acetylene hydrocarbons are removed by absorption or chemical reaction, from coke oven &c. gas which is to be separated by liquefaction, before entering the heart exchangers preceding the separation apparatus proper, and only so far as to prevent solid deposits therein. This separation may be effected by passage over heated catalysts, with hydrogenation or decomposition, by polymerization over heated copper, or by solution in water or ketones. Other constituents favourable to explosion or resinification such as ammonia or nitric oxide, may be removed, e.g. by concentrated sulphuric acid. Parts of the apparatus made of copper may be coated with tin, lead, or their alloys. Specification 288,216, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-730584-A (GB)
Title: Improvements in or relating to position selecting mechanism, more particularly for tuning spindles of radio apparatus
IPC: H03J5/20
Filed: 1952-05-22
Abstract: 730,584. Stopping rotary members in predetermined positions; locking rotary elements. MILLEDGE, S. Z., and FRENCHAY PRODUCTS, Ltd. Aug. 21, 1953 [May 22, 1952No. 13026/52. Classes 80 (2) and 80 (4). Means for stopping a shaft 12, particularly for radio tuning apparatus, in one of a number of positions comprises a series of notched discs 13 secured to the shaft with which a traversing stop pawl. 15 is adapted to co-operate. The traversing movement of pawl 15 is obtained from a fly-back mechanism as described in Specification 721,389 the screw shaft 16 of which is driven together with the shaft 12 from a reversible electric motor 74, Fig. 6, acting through free-wheel clutches 28, 29 so that whilst one shaft is being driven the other is stationary. To bring shaft 12 to a desired position a switch arm 67 is set to a selected position and a main switch 68 is closed to start the motor 74. The motor rotates in a direction to turn the screw shaft 16 and traverse the stop pawl 15 along the discs 13, the shaft 12 remaining stationary. When a switch arm 69 of a switch 61 driven by the shaft 16 reaches a position corresponding to the position of selector switch arm 67 the circuit of a relay 72 is closed which relay operates to reverse the motor 74. The screw shaft 16 then stops and the shaft 12 is rotated until the stop pawl 15, which is urged into resilient engagement with the selected disc 13 by the axial reaction by a worm 23 in the drive thereto (see Fig. 2) drops into the notch of the disc and stops the rotation of shaft 12. A switch 77 is also actuated by further axial movement of the worm 23 to shut off the motor and close the circuit of an indicator lamp 78 which shows that the desired position selection has been made. Specification 730,583 also is referred to.
Patent GB-552574-A (GB)
Title: Improvements in stop mechanisms particularly for straight bar knitting machines
IPC: D04B11/00
Filed: 1941-10-11
Abstract: 552,574. Knitting-machines. COTTON. Ltd., W., WILDERS, G., and MACDONALD, W. G. Oct. 11, 1941, No. 13128. [Class 74 (ii)] The positive locking means for holding the disconnected draw mechanism of a straight-bar machine in position of rest comprises a projection 20 on a rotating part of the draw mechanism and a sliding member 18 restrained against rotation with the mechanism and movable into and out of the path of the projection 20. The member 18 may be slidable radially or axially. In one form of the projection 20 protrudes from the side of a brake disc 17 and the slidable member is mounted upon and extends inwardly from the brake shoe 16. The brake and member 18 are operated by the axial movement of a pinion 13 secured to one member of the dog clutch 19, a bell-crank 10 pivoted to the machine frame having a roller 12 resting on one face of the pinion and having one end connected by a spring 14 to a yoke 15 carrying the brake shoe. In a modification, the sliding member is carried by a sleeve held against rotation and moved axially with the pinion 13.
Patent GB-669965-A (GB)
Title: Improvements in and relating to frequency modulation detector circuits
IPC: H03D3/10
Filed: 1950-05-25
Abstract: 669,965. Frequency modulation. BRITISH THOMSON-HOUSTON CO., Ltd. May 25, 1950 [June 3, 1949], No. 13213/50. Class 40 (v). In order to detect the signal on a frequencymodulated wave, the wave is applied to a pair of similar channels 1, 2, each comprising (a) an amplifying valve 3, 3<SP>1</SP> feeding a resonant circuit 10, 10<SP>1</SP>; (b) a reactance modulator 17, 171 connected across each circuit, and (c) an amplitude detector 30, 30<SP>1</SP>. The respective channels are tuned above and below the mean wave frequency, and the difference between the detected output voltages across resistors 31, 31<SP>1</SP> (which represents the modulating signal), is applied to the reactance modulators to shift the resonance frequency of both channels in the direction of the instantaneous frequency deviation of the input wave. In this way, a linear response is obtained over a wide band of frequency deviation. The reactance modulators comprise valves with their grids excited in quadrature relation with their anodes, and the combined detector output is applied through a switch 34 and resistor 35 across a condenser 26, 26<SP>1</SP> in the grid circuits, these condensers being of capacity sufficient to by-pass any residual wave frequency, but small enough to ensure that the modulation frequency reaches the grids. Output is taken to the detectors 30, 30<SP>1</SP> across a coil 29 connected between condensers 27, 28 across the tuned circuits 10, 101.
Patent GB-1186091-A (GB)
Title: Electron Beam Heating Apparatus for Annealing Strip Material.
Inventor: HUNT CHARLES D ANCONA
IPC: H01J37/18
Filed: 1967-03-21
Abstract: 1,186,091. Heat-treating strips. AIR REDUCTION CO. Inc. March 21, 1967, No.13213/67. Heading C7N. [Also in Division H1] In an electron beam furnace for continuously annealing metal strip, the strip 1, Fig. 6, is fed to a vacuum electron beam bombardment chamber 4 through a series of entrance seal chambers 3a, 3b, 3c maintained under progressively higher vacua and away from the vacuum chamber through a series of exit chambers 9a, 9b, 9c, maintained under progressively lower vacua, to a cooling chamber 10 maintained at atmospheric pressure. The various chambers are separated by dynamic roll seals each comprising a roll 14a, 14b, Fig. 9, on either side of the strip 1 with the lower roll 14a rotatable about a fixed axis and the upper roll 14b rotatable about an axis shiftable toward and away from the strip to allow for bumps in the strip. The dynamic seals and the chamber walls are water cooled. The upper roll 14b is downwardly biased by the differential pressure across the seal possibly augmented by spring pressure. In the vacuum chamber the strip passes under rows of electron guns 6, Fig. 6; radiant heaters may also be provided to supplement the electron beam heating. In the cooling chamber 10 the strip passes between opposed chill plates 11 and air or an inert gas, such as argon or nitrogen, may be circulated during cooling. Suitable specific pressures are given for the vacuum and seal chambers and the general pumping arrangement is described. The apparatus is described as useful for the annealing or bright annealing of stainless steel or titanium strip or of refractories.
Patent GB-150062-A (GB)
Title: Improvements in wick guiding means
IPC: F21V37/00
Filed: 1919-05-26
Abstract: 150,062. Cleveland Metal Products Co., Chadwick, L. S., and Rehmer, C. C. May 26, 1919. Wick-operating devices. -In oil stoves and lamps, especially those having tubular wicks, means are provided for straightening out the wick, as it is raised, consisting of two or more looped fingers 20, Fig. 3, soldered or otherwise secured at their upper ends to the reservoir neck and extending nearly to the bottom of the reservoir. The fingers are bent abruptly at 24, 25 to form stops by means of which folds in the wick formed during insertion may be removed. In a modification, a wire ring 30, Fig. 6, carrying, depending fingers 31 which are flared at their lower ends is secured to the reservoir neck.
Patent GB-1392907-A (GB)
Title: Preparation of p-menthane carboxylic acid
IPC: C07C61/08
Filed: 1973-03-20
Abstract: 1392907 Menthane carboxylic acid WILKINSON SWORD Ltd 29 Jan 1974 [20 March 1973] 13284/73 Heading C2C p-Menthane-3-carboxylic acid is prepared by reacting a p-menthane-3-halide with magnesium in an anhydrous inert organic solvent to form a Grignard reagent, reacting the Grignard reagent in said solvent with carbon dioxide and hydrolysing the product so formed, wherein the Grignard reagent is formed using a solution of p-menthane-3-halide in an acyclic ether, said solution containing at least 4 moles per litre of p-methane-3-halide.