baber/WOPTO huggingface dataset:
Patent GB-1095156-A (GB)
Title: Novel thiamine derivatives and a process for the manufacture thereof and of allied derivatives
IPC: C07D309/12
Filed: 1964-12-17
Abstract: Compounds of the general Formula (I) <FORM:1095156/C2/1> (wherein R1 represents a hydrogen atom or a lower alkyl group, R2 represents a hydrogen atom or a lower alkyl, lower alkenyl, lower alkynyl, aryl or lowe aralkyl group, R3 represents a hydroxy group or R2 and R3 each represent a lower alkoxy group, R4 represents a hydrogen atom or an acyl group, and X and Y each represent a monovalent anion derived from a strong organic or inorganic acid) are prepared by condensing a compound of the Formula (II) <FORM:1095156/C2/2> (wherein R10 represents a hydrogen atom or a lower alkyl group and R5 represents a tetrahydropyranyl, tetrahydrofuranyl, vinyl, allyl or benzyl group) with a compound of the Formula (III) <FORM:1095156/C2/3> (wherein R6 represents a halogen atom), cleaving off the R5 group if necessary and either quaternizing the condensation or cleavage product as the case may be with a compound of the Formula (IV) <FORM:1095156/C2/4> wherein Y represents an atom or group of atoms derived from a monovalent anion of a strong organic or inorganic acid), after acylation, deacylation or re-acylation where required, or oxidizing the condensation or cleavage product as the case may be and reacting the oxidation product either with a halide of the Formula (V) R20-Mg-R7 (wherein R20 has any of the values accorded to R2 except that of a hydrogen atom and R7 represents a halogen atom) or a lower alkyl orthoformate, an alkanol containing not more than seven carbon atoms or an acetone di-(lower alkyl) acetal in the presence of a strong acid and quaternizing the product of either of these reactions with a compound of Formula (IV), after acylation, deacylation or re-acylation where required.  The lower alkyl, alkenyl, alkynyl and alkoxy group and the alkylene residue of the lower aralkyl groups each contain up to seven carbon atoms.ALSO:Pharmaceutical compositions comprise thiamine derivatives of the general formula (I) <FORM:1095156/A5-A6/1> (wherein R1 represents a hydrogen atom or a lower alkyl group, R2 represents a hydrogen atom or a lower alkyl, lower alkenyl, lower alkynyl, aryl or lower aralkyl group, R3 represents a hydroxy group or R2 and R3 each represent a lower alkoxy group, R4 represents a hydrogen atom or an acyl group, and X and Y each represent a monovalent anion derived from a strong organic or inorganic acid), with or without other (unspecified) active ingredients, in admixture with a carrier.  The lower alkyl, alkenyl, alkynyl and alkoxy groups and the alkylene residue of the lower aralkyl groups each contain up to seven carbon atoms.  The compounds of formula (I) show high vitamin B1 activity which persists for a considerable time.
Patent GB-1261429-A (GB)
Title: Method of treating cellulosic material to improve its dimensional stability
IPC: D06M15/423
Filed: 1969-10-21
Abstract: 1,261,429. Cellulose derivatives. McGRAWEDISON CO. 21 Oct., 1969 [10 March, 1969], No. 51553/69. Heading C3A. [Also in Divisions D1 and D2] Cellulosic material is treated to increase its dimensional stability by contacting it with an organic swelling agent to expand it beyond the water-swollen condition, impregnating the cellulose with a compound which cross-links it, and allowing cross-linking. The two materials may both be in the same solution, preferably in water, or they may be applied separately. The swelling agent may be N,N-dimethyl formamide; thiourea; resorcinol; alkylamines with up to 7 carbon atoms; chloral hydrate; benzene sulphonates; and mixtures thereof. The crosslinking agent may be a monomer or partial polymer, e.g. dimethylolethylene urea; dihydroxyethylene urea; dimethylolpropylene urea; melamine-formaldehyde; urea-formaldehyde; and mixtures. The cross-linking may be effected by heating.
Patent GB-521651-A (GB)
Abstract: 521,651. Radiators for aircraft. SERCK RADIATORS, Ltd., and GARNER, E. Nov. 24, 1938, No. 34160. [Class 64 (iii)] A radiator for aircraft comprises a water cooler constructed from spaced air tubes d round which flows the water and an oil cooler o similarly constructed from spaced tubes p and nested in a hole b in the water cooler, the oil cooler having at one end an inlet and outlet header r lying immediately behind an adjacent narrow flange or plate k forming part of the water cooler. Inlet and outlet connections f, g on the water cooler are connected with a segmental space h bounded by segmental flanges i on the outer wall of the shell of the water cooler, which is divided by a vertical partition c with adjacent passages m defined by channel-shaped metal members n communicating with another space j bounded by' flanges k tapering downwards around the eccentric inner wall b of the water cooler. Another segmental water space h is provided at the bottom of the water cooler. The cylindrical shell o of the oil cooler fits closely within the wall b, and the header r which rests against the flange k has an inlet s and outlet t and tapers down around the tubes p. The oil cooler is divided by a vertical partition v to cause the oil to flow axially along the cooler, or partitions are arranged to give a sinuous path to the oil.
Patent GB-1455725-A (GB)
Title: Method for installaing in a working position a mobile crushing plant or a similar machine provided with pneumatic tyred wheels and combination of such plant and apparatus for performing the method
IPC: B02C21/02
Filed: 1973-11-12
Abstract: 1455725 Vehicle stabilizers FIVES LILLECAIL 12 Nov 1973 [17 Nov 1972] 52467/73 Heading B7J A mobile machine such as a mobile crushing plant comprises a chassis 10 provided with pneumatically tyred wheels 12 on which it can travel and feet 22, 24, 26 on which it rests when in its working position, the feet being mechanically lockable in a lower position slightly spaced from the ground while the tyres are inflated to their normal travelling pressure, so that on simultaneous deflation of the tyres by a pneumatic system on the machine, the locked feet contact the ground to at least partially bear the weight of the machine. The feet 22, 24, 26 are carried on the ends of swingable arms 28 pivoted on the chassis 10 and movable by jacks 34 to the lower position (full lines on Fig. 5) in which the arms 28 are disposed slightly off the vertical and engaged against abutments 36, the arms thus being applied against the abutments by the weight of the machine when the feet contact the ground. The pneumatic system, Fig. 4 (not shown), comprises a compressor (40) connectible to each tyre by respective non-return valves (46), each tyre also being connectible via further non-return valves (48) to a distributer (44) which can be opened to the atmosphere, such that all the tyres can be simultaneously inflated or deflated as desired.
Patent GB-1428225-A (GB)
Title: Preparation of 2-amino-4-nitro-anisole
IPC: C07C213/00
Filed: 1973-11-14
Abstract: 1428225 2-Amino-4-nitro-anisole HOECHST AG 14 Nov 1973 [16 Nov 1972] 52890/73 Heading C2C A process for the preparation of 2-amino-4- nitro-anisole comprises treating 2-amino-anisole with an approximately equivalent molar amount of a nitrating agent at a temperature not exceeding + 5C., diluting the resulting mixture with at least twice its weight of water, heating the diluted mixture to a temperature of from 50 to 100 C., adjusting the pH of the reaction mixture to from 0À6 to 1À6 by means of ammonia, filtering the reaction mixture and isolating the 2-amino-4-nitro-anisole from the filtrate.
Patent GB-1073076-A (GB)
Title: An improved artificial heart valve
Inventor: MELROSE DENIS GRAHAM
IPC: F16K15/02
Filed: 1964-12-31
Abstract: 1,073,076. Artificial heart valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 17, 1965 [Dec. 31, 1964], No. 53104/64. Heading A5R. [Also in Division F2] A one-way valve to be implanted in the heart comprises a ring-shaped member 1 the opening in which is adapted to be closed by a bi-convex member 2, the movement of the closure member 2 away from the ring member 1 being limited by a large guide member 5 and two smaller guide members 6. A bioligically inert mesh 9 of polyproylene reinforced with a ring 7 of stainless steel or a synthetic resin material is fitted into a channel in the ring-shaped member 1 so that fibrosis can occur between the natural heart tissue and the mesh 9 when the valve has been implanted. A recess in the inner surface of the ring member 1 receives the large guide member 5 to prevent relative rotation of ring-shaped member and the closure member. In an alternative embodiment (Figures 4-6, not shown), two guide members are formed larger than a third guide member and a projection on the inner surface of the ring-shaped member between the larger guide members prevents relative rotation. The valve components are of biologically inert material and suitable metal and synthetic resin materials are exemplified.
Patent GB-1452920-A (GB)
Title: Signal equalizers
IPC: H03H7/01
Filed: 1973-11-19
Abstract: 1452920 Active filters; amplifiers DOLBY LABORATORIES Inc 6 Nov 1974 [19 Nov 1973] 53514/73 Headings H3U and H3W An equalizer comprises a signal path between an input 10 and an output 11 and a plurality of bandpass filters 14 arranged to provide feedback and feedforward signals to the signal path, the contribution to the combined signal provided by each filter being determined by a respective potentiometer 17 associated with each filter. In one embodiment, Fig. 1, the filters 14 have their inputs connected to a point 15 in the path between the input and output terminals 10, 11 and have their outputs connected to variable tapping points 16 on the respective potentiometers. The feedback and feedforward signals are applied to respective combining circuits 12, 13 and an inverter 18 is included between the combining circuit 12 and the point 15 so that the signals provided by the filters boost the combined signal at one combining circuit and cut it at the other. Alternatively the inverter may be included between the point 15 and the combining circuit 13, Fig. 2 (not shown). In an alternative arrangement, Fig. 5, a single combining circuit 25 is used to combine all the outputs of the filters 14, which receive their inputs from the variable tapping points 16 on the respective potentiometers 17. In this arrangement the inverter, 26, may be connected between the input 10 and the potentiometers 17 or alternatively, Fig. 6 (not shown), it may be connected between the combining circuit 25 and the output 11. The individual bandpass filters may be amplifiers with RC feedback paths, Fig. 4 (not shown). The potentiometers may also have fixed tapping points connected to earth 28, so that any filter can be adjusted to provide no contribution to the output.
Patent GB-1487610-A (GB)
Title: Electronic irrigation controllers
IPC: G05D22/02
Filed: 1974-01-22
Abstract: 1487610 Automatic control of moisture content FLOWERING PLANTS Ltd 9 March 1976 [11 Dec 1974] 53658/74 Heading G3R An irrigation device for a substrate on or in which plants may be grown is controlled by a system in which a measurement of the water content of the substrate is electronically compared with upper and lower limits, the upper being selectable as a proportion of a reference value and the lower limit as a proportion of the upper. The reference source is an oscillator (11 MHz) 24 whose output is rectified and smoothed and applied to bridge network R3 ... R6 shown. Potentiometer P1 is set to the maximum moisture content and P2 to the lower, the selected values being applied to operational amplifiers A2, A3 for comparison with a voltage Vp which corresponds to the actual moisture content. This is produced as the rectified and smoothed voltage appearing across electrodes in contact with the substrate, forming a variable capacitance C, which is also energized from the oscillator 24. The comparison arrangement is such that A2, A3 produce high or low values which cause a further amplifier A4 to trigger on a triac 26 controlling the irrigator when the moisture drops below the minimum set level, and it stays on until the maximum level is reached.
Patent GB-1415492-A (GB)
Title: Organotin compounds and their uses
IPC: C07F7/22
Filed: 1971-11-19
Abstract: 1415492 Organolin compounds ALBRIGHT & WILSON Ltd 16 Nov 1972 [19 Nov 1971] 53892/71 Heading C2J [Also in Division C3] The invention comprises compounds of the general formula where R and R 1  are C 1 -C 12  alkyl, cycloalkyl or phenyl groups, X is where Q is -(CH 2 ) n S- or nothing, Q<SP>1</SP> is S if Q is nothing or is nothing if Q is -(CH 2 ) n S-, R<SP>1</SP> is H, C 1 -C 20  alkyl or cycloalkyl or is aryl or substituted aryl, R<SP>11</SP> is C 1 -C 21  alkyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl or -CH 2 COOR 2  where R 2  is C 1 -C 8  alkyl, R<SP>111</SP> is R 3  or is -(CH 2 ) n COOR 3  where R 3  is C 1 -C 20  alkyl or is a cycloalkyl, cyclic ether or aryl group and n is an interger from 1 to 4, or X is where R 5  and R 6  are as for R and R 1  and R 7  is as for R<SP>1</SP>, and Y is either as for X or is or is if X is (I) where R 4  is C 1 -C 20  alkyl or is a cycloalkyl, aryl or tetrahydrofurfuryl group. The compounds are prepared by reacting (R)(R 1 )SnO with (A) either (1) a mixture of (a) an aldehyde or ketone (R<SP>1</SP>)(R<SP>11</SP>)CO if Q<SP>1</SP> is nothing or H.CO.COOH if Q<SP>1</SP> is -S- and (b) a mixture of R<SP>111</SP>SH and HOOC.QH if Q is -(CH 2 ) n S- or a mixture of R<SP>111</SP>SH and R<SP>11</SP>Q<SP>1</SP>H is Q<SP>1</SP> is -S-, or (2) the preformed reaction product of such a mixture, and (B) optionally one of and usually in the presence of an acid catalyst and a solvent. A number of the compounds are specified. They are used as stabilizers for halogen-containing resins.
Patent GB-1116250-A (GB)
Title: Semiconductor devices
IPC: H03J5/24
Filed: 1966-12-02
Abstract: 1,116,250. Variable capacitance diodes. ITT INDUSTRIES, Inc. 2 Dec., 1966 [3 Dec., 1965], No. 54105/66. Heading H1K. A variable capacitance diode has a zone configuration PNP or NPN with contacts on the outer zones. The relationship between the junction areas and the zone dopings are so selected that for a given range of applied voltage the rate of change of capacitance with voltage differs in accordance with the polarity of the voltage. In the device illustrated in Fig. 1 zone 1 has a resistivity of 0À01 ohm. cm. and a thickness greater than the minority carrier diffusion length while layers 2 and 3, each 7 u thick, have a resistivity of 1 ohm. cm. Graded layer 9 is formed by diffusion while layer 2 is masked. After etching away the central portion of the masking layer 4 acceptor material is diffused in to form layers 7 and 10.
Patent GB-1192429-A (GB)
Title: Air Operated Projectile Firing Apparatus
IPC: F41A17/46
Filed: 1967-11-28
Abstract: 1,192,429. Pneumatic gun. VICTOR COMPTOMETER CORP. 28 Nov., 1967 [30 Nov., 1966], No. 54171/67. Heading F3C. A pneumatic gun for firing caseless type ammunition comprising a projectile portion and a propellant portion ignitable by surface contact with a high temperature gas includes a barrel 20, an ammunition holding chamber 24, and a movable gas compression cylinder 34 mounted behind the barrel and being movable between a firing position against the rear of the barrel and a loading position spaced rearwardly from the rear of the barrel. In the firing position the rear end 54 of the barrel 20 is received in a chamber 53 in the forward end of the cylinder 34 to define with the ammunition holding chamber a closed firing chamber. A valve 57 is provided for closing an air passage to the firing chamber to prevent rearward flow of propellant gas into the movable cylinder 34. In the construction shown the cylinder 34 slides in a guide housing 36 which is provided with a pair of depending flanges 40 to form a guide slot to guide a flange 42 of the cylinder 34 during the cocking operation. The cocking is achieved by a cocking lever 84 and linkage 88 which urge the cylinder 34 rearwardly, a piston 60 spring loadedly housed within the cylinder also being urged against its spring loading rearwardly until a notch 62 formed on the piston-rod 61 thereof is engaged by a projection 82 of a spring loaded sear 63. The spring 74 which loads the sear 63 also acts on a trigger 70. Operation of the trigger 70 withdraws the projection 82 from the notch 62 through the engagement of a pin 77 of the trigger in an opening 78 in the sear. A rubber-like cushion disc 55 is provided between the piston 60 and the forward end of the cylinder 34. The trigger cannot be operated during cocking due to the co-operation of a surface 116 on the trigger and a cam surface 114 on the cocking lever. Other safety devices comprise a slidable safety catch which is interposed between the trigger and an abutment of the housing 36 in its operative position (Fig. 7, not shown) and a spring loaded, pivotable latch arm which blocks the forward movement of the piston until the arm is manually pivoted away from its path (Fig. 6, not shown). The barrel 20 is surrounded by a sheath 18 which at the forward end of the barrel assembly is connected to the barrel 20 through a cap member and a front sight sleeve (Fig. 5, not shown).
Patent GB-1517670-A (GB)
Title: Spacer grids for nuclear reactor fuel assemblies
IPC: G21C3/00
Filed: 1976-12-29
Abstract: 1517670 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 29 Dec 1976 [9 Jan 1976 14 Jan 1976] 54249/76 Heading G6C A spacer grid for a nuclear fuel assembly comprises an array of interfitting flat sheet metal members defining compartments, narrow corrugated strips projecting into the compartments and forming separations between openings of substantial width formed in the sheet metal members, and an outer frame, the sheet metal members where they are joined to the corrugated strips are alotted or otherwise cut away to increase resilience at that point and increase the permitted deflection of each strip under the action of the same applied force. As shown in Fig. 3, the flexibility of each corrugated strip 5 is improved by providing slits 10 near the junctions between the sheet metal members 2 and the strip 5. The slits 10 extend parallel to the opposite edges of the sheet metal members 2 and the twisting of that portion of the member 2 between the slit 10 and the strip 5 itself is thus made to take part in the bending of the strip 5. The projecting portion 6 of the strips 5 are intended to apply the fuel pins against bosses 7, 8 formed in the sheet metal members 2. In alternative embodiments, Figs. 4 and 6 (the former, not shown), slits 12 are formed in the sheet metal members 2 on each side of each corrugated strip 5 so that the strips 5 directly incorporate the bosses 7, 8. This results in interdependence of the compartments since a force applied to any one corrugated strip is transmitted to the bosses of the adjacent compartment and so on in sequence, thus achieving equalization of the forces applied to the fuel pins throughout the entire grid. In the Fig. 6 embodiment, each corrugated strip 5 is provided with open portions 13 so as to form two bearing arms 14 extending on each side of the central position 6. A fuel pin applies a force first to the arms 14 and as the force increases so the extremities 14a of the arms 14 are applied against the solid portion of the strip 5. If the force continues to increase, the fuel pin bears on the central portion 6 and then produces deflection of the strip 5 itself. This embodiment thus utilizes two successive spring actions. The outer frame may be provided with external ribs (20) (Fig. 8, not shown) extending at right angles to the longitudinal direction of the sheet metal members, or with rounded teeth (9) (Fig. 9, not shown) provided on the end edges of the frame and which are shaped to bulge outwardly of the frame before inclining inwardly.
Patent GB-1156031-A (GB)
Title: Improvements in or relating to Fluid Flow Connectors.
Inventor: BOWLER REGINALD GEORGE
IPC: B01L3/00
Filed: 1965-12-23
Abstract: 1,156,031. Pipe connections. R. G. BOWLER. 23 Dec., 1966 [23 Dec., 1965], No. 54683/65. Heading F2G. A multi-point plug and socket connector comprises a unit 11 having nozzles 14 for connection to flow conduits and nozzles 15 connecting there - with and for insertion into sockets 25 in a unit 22 having nozzles 24 for connection to fluid conduits and connected to the sockets. The unit 22 is formed with apertured flanges 27 for securing the unit and with a pin 26 for location in hole 16 in the unit 11. To effect separation of the units, the unit 11 is provided with flanges 13. The units are made of moulded thermoplastics material.
Patent GB-1471668-A (GB)
Title: Triazine derivatives ant their use as polymerisation catalysts
IPC: C08G18/02
Filed: 1974-11-15
Abstract: 1471668 1,3,5 - Tris - (cyclicaminoalkyl)- hexahydro-1,3,5-triazines IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Nov 1974 [27 Nov 1973] 54897/73 Heading C2C [Also in Division C3] The invention comprises compounds (I) when n is 2, 3 or 4 and the symbol represents a saturated or unsaturated 3-6 membered heterocyclic ring containing nitrogen, and their preparation by condensing an amine (III) with formaldehyde.
Patent GB-1496339-A (GB)
Title: Overcurrent moulded case automatic circuit breaker
IPC: H01H73/18
Filed: 1974-12-19
Abstract: 1496339 Automatic circuit breakers AIRPAX ELECTRONICS Inc 19 Dec 1974 [23 April 1974] 54928/74 Heading H1N An automatic circuit breaker comprising a moulded plastics housing with an operating handle connected by a toggle mechanism to a moving contact 38, has an arc chamber within the housing and surrounding the contacts 38, 54, defined by five plates, e.g. 56, 92, 96, of heat insulating material with a metal plate 94 on a sixth side of the chamber. A wire mesh screen 70 may cover a venting opening of the casing. Two opposite insulating walls of the chamber support arc splitter plates 58 of differing thicknesses and lengths, the thicker plates 98, lying adjacent the stationary contact 54 and metal plate 94 carried thereby. The venting opening of the housing is defined by fingers of opposite halves of the housing lying in parallel (not coincident) planes (Fig. 4, not shown). For use where inflammable vapour may be present, wire mesh 70 is replaced by a continuation of the adjacent insulating plate (Fig. 12, not shown).
Patent GB-1161815-A (GB)
Title: Motor Vehicle Windshield.
Inventor: BARRELL RICHARD JOHN
IPC: C03B27/052
Filed: 1966-12-09
Abstract: 1,161,815. Tempered glass windscreens. FORD MOTOR CO. 9 Dec., 1966, No. 55242/66. Heading C1M. A differentially tempered windscreen has areas A centred on prints 9 in which the average particle size of partially toughened glass is larger than the average particle size of areas B concentric with the first areas. There may be several such annuli each having smaller particle size than those nearer the centre. Air from a rotating disc is blown on to the treated glass through a screen having baffles.