baber/WOPTO huggingface dataset:
Patent GB-1287932-A (GB)
IPC: C08G73/10
Filed: 1969-09-17
Abstract: 1287932 Coating wires RAYCHEM CORP 17 Sept 1969 [18 Sept 1968] 45809/69 Heading B2E [Also in Divisions C2 and C3] Wires are insulated by coating with poly (1,12-dodecamethylene pyromellitimide), (A) obtained by reaction between (B) pyromellitic dianhydride, or derivative thereof, and (C) 1,12-diaminododecane. Sb oxide and TiO 2  may be present. Articles made from (A) may have elastic memory, as referred to in Specification 1033959. Specifications 982915 and 1026510 are referred to.
Patent GB-1090786-A (GB)
Title: Process for preparing 3ª,5ª,14ª-trihydroxy-20(22)-cardenolide (periplogenin)
IPC: C07J19/00
Filed: 1964-11-11
Abstract: The invention comprises (1) 20-a -ethoxyethynyl - 3b ,5b ,14b ,20b ,21 - pentahydroxy-pregnane and its 3,21-diacetate, and (11) a process for preparing periplogenin from the diacetate of the invention by (a) hydrolysis to the pentaol of the invention or 3b ,5b ,14b -20-tetrahydroxy - 20(22) - dihydro - cardenolide, or a mixture of the two, followed by treatment with a dilute mineral acid, or (b) reacting the with a dilute mineral acid, or (b) reacting the diacetate of the invention with a dilute mineral acid to give 20-carbethoxymethylene-3b ,21-diacetoxy - 5b ,14b  - dihydroxy - pregnane, followed by hydrolysis and cyclization.  3b ,21 - diacetoxy - 20 - a  - ethoxyethynyl-5b ,14b ,20b -trihydroxy - pregnane is prepared by conversion of 14a -desoxycorticosterone to its 21-acetate, dehydration of this to 14-dehydro-desoxycorticosterone acetate, reducing this with lithium aluminium hydride to 3b ,20b ,21-trihydroxy - 4,14 - pregnadiene, converting this to its 3,20,21-triacetate, treatment with N-bromo-acetamide and perchloric acid to form 4a ,14a  - dibromo - 3b ,5b ,15b ,20b ,21 - penta-hydroxy - pregnane - 3,20,21 - triacetate, treatment of this with a base to form 4b ,5b ,14b ,15b -diepoxy - 3b ,20b ,21 - trihydroxy - pregnane, converting this to its 20,21-acetonide, reaction of this with lithium aluminium hydride to form 3b ,5b ,14b - trihydroxy - 20b ,21 - isopropylidene -dioxy-pregnane, converting this to its 3-acetate, hydrolysing the acetonide group to form 3b -acetoxy - 5b ,14b ,20b ,21 - tetrahydroxy - pregnane, converting this to its 3,21-diacetate, oxidation to the 20-ketone and reaction with lithium ethoxyacetylene.
Patent GB-1021467-A (GB)
Title: Apparatus for testing the temperature of a medium
Inventor: DREW DENNIS ARTHUR
IPC: G01K3/04
Filed: 1963-11-22
Abstract: 1,021,467. Measuring temperature electrically. ROLLS-ROYCE Ltd. Nov. 22, 1963, No. 46322/63. Heading G1N. The temperature of a fluid in a tube 12 (Fig. 1) is sensed by a thermocouple 10 and a bimetallic strip 11 carrying at its free end an armature 13 located inside two similar coils 14, 15. The output signals from the thermocouple, which has a slow response time, and the bimetallic strip, which has a fast response time, are combined to give an accurate indication of the instantaneous value of the fluid temperature.
Patent GB-1534556-A (GB)
Title: Electronic timepieces
IPC: G04F10/00
Filed: 1976-11-10
Abstract: 1534556 Electronic timepieces DAINI SEIKOSHA KK 10 Nov 1976 [11 Nov 1975] 46800/76 Heading G3T An electronic timepiece functions as a stopwatch and also to selectively indicate time in two different time zones, all indications being on the same digital display devices (e.g. liquid crystal). In Fig. 1, a frequency divider 2 supplies 1 Hz timing pulses, derived from a crystal-controlled oscillator 1, to three sets of secs, mins and 24 hour counters 4, 5, 6 and 8, 9, 10 and 14, 15, 16. One set, e.g. set 3, may be for GMT; set 7 may be for time of day in another time zone, and the remaining set is for chronograph time. A switching circuit 20 (detailed Fig. 6 not shown) including a ring counter, stepped by each closure of a manually operable switch, produces three outputs to selectively control three sets of transmission gates in each of circuits 17, 18, 19 (as detailed in Fig. 8 not shown) whereby to couple a selected one of the counter sets to a decoderdriver circuit 21 for display of the contents thereof on a common display unit 22 which comprises 7-segment type display devices. A circuit 11 is for setting the time of day counters to the correct time. A circuit 13 is a switching circuit (detailed Fig. 4 not shown) including ring-connected flip-flops stepped by a manual switch to produce control signals for chronograph operation. One signal controls an AND gate (42) to start and stop the supply of 1 Hz pulses from the divider to the chronograph counters; the other functions to reset the chronograph counters to zero.
Patent GB-1246144-A (GB)
Title: Pressure vessel
Inventor: MERCIER JACQUES HENRI
IPC: F15B1/22
Filed: 1968-10-03
Abstract: 1,246,144. Hydraulic accumulators. J. H. MERCIER. Oct.3, 1968 [Oct.3, 1967], No. 47055/68. Heading F1P. [Also in Division F2] An oleo-pneumatic accumulator, comprises a container shell 10 having a tubular mouth 11, a closure member 13 engaged in the mouth, a deformable separator 23 secured in the shell to divide the interior of the shell into two chambers 24, 25, and a combined sealing and support ring 26 having a fillet portion 28 connected to a circular-section portion 27 by a web 29. The fillet portion serves to support the separator 23 which divides a gas space 24 from a liquid space 25 and the circular-section portion 27 serves to seal the closure member 13 which is clamped to the flared mouth of the shell by a nut 15. If desired, a P.T.F.E. split ring may be inserted under the portion 27 to prevent extrusion. To charge the accumulator, a charge of air in the space 24 is compressed by hydraulic fluid introduced through a stop valve into the space 25. In use, the separator 23 expands towards a plate 32 to force the liquid through outlet 13.
Patent GB-1282468-A (GB)
Title: Alignment system
Inventor: ADLER ALAN JOHN
IPC: G05D3/20
Filed: 1969-09-26
Abstract: 1282468 Template-followers TEXAS INSTRUMENTS Inc 26 Sep 1969 47459/69 Heading G3N A predetermined alignment between a particular area of an object scene and a work implement employs an arrangement whereby the area of a raster scan is reduced until a comparison determines that the predetermined condition of alignment has been achieved. As shown, a semi-conductor 21 is mounted on a jig, (not shown), and is scanned by a flying spot scanner 31, mounted in an inspection module supported by an arm of a lead-wire cutting and attaching mechanism, (not shown), through a lens 33. Part of the light reflected from the semiconductor 21 is fed through an objective lens 34 and a fibre-optic tube 35 to a multiplier photo-tube 32. Part of the view of the scanner 31 is fed via a mirror 38 and lens 39 through a reference standard, comprising a photographic transparency, to a multiplier photo-tube 41. The output signals from the photo-tubes 32, 41 are compared in an analyzer unit 44 producing quadrature and rotational error signals x, y which are fed to a servo unit 45 producing a mechanical movement aligning the lead-mechanism with the semi-conductor device. The signals from the multiplier photo-tubes 32, 41 are alternatively fed, through a switch 50, to a viewing monitor tube 49. The size of the raster on scanner 31 is adjusted by a zoom control 165 whereby the scanned area of the semi-conductor device is reduced as the misalignment decreases.
Patent GB-1091259-A (GB)
Title: Knitting machine indicator apparatus
IPC: D04B9/02
Filed: 1966-10-28
Abstract: 1,091,259. Knitting-machines. SINGER CO. Oct. 28, 1966. [Nov. 1, 1965], No. 48404/66. Heading D1C. The needle cam 10 at each feed in a circular machine adjusted to effect quality control by causing the end 40 of a screw 36 to bear on an inclined surface 34 of a cylindrical post 20 supporting the cam 10 such that it urges the post downwardly against a spring 42 or permits the spring to move the post upwardly. Simultaneously, a second inclined surface 32 in the post bears against the end of a rod 54 carrying a peg 56 which engages a worm 62 on the shaft of a pointer 60 which indicates the position of the needle cam by registering against a dial on the face of an instrument 52.
Patent GB-1510550-A (GB)
Title: Device for stepwise displacement of an object
IPC: B23Q5/28
Filed: 1975-11-25
Abstract: 1510550 Microtomes LKB-PRODUKTER AB 25 Nov 1975 [26 Nov 1974] 48465/75 Heading G2J [Also in Divisions F1 F2 and H2]  A linear actuator in a microtome for effecting stepwise displacements of a driven object includes an elongate member I which can be caused reversibly to expand and contract in length by the action of an activating device 5, and two releasable clamps 2, 3, in each of which the elongate member 1 may be held stationary in a V-shaped groove 11, Fig. 2. Each clamp may be comprised of a contact screw 13 carried by a spring arm 12 which may be lifted by means of a lever 15 on a fulcrum 16, impelled by an electromagnet having a coil 18 and core 17. A mechanical link 6 may convey the displacements to a driven object (not shown). A sequencing switch 7 is provided, for connecting a power supply 8 to the clamps 2, 3, and the activating device 5, in such a manner that unidirectional stepwise displacements are produced. For example, with clamp 3 released and clamp 2 secured, the activating device 5 may produce an expansion of member 1, causing link 6 to be driven in a leftward direction as shown in Fig. 1, and then clamp 3 is secured, clamp 2 is released, and the activating device 5 then causes contraction, until clamp 2 again becomes secured, clamp 3 is released, and the foregoing cycle is repeated. The switch may alternatively be set to provide displacements in an opposite direction. In one embodiment the member 1, or a portion of that member, is composed of a magnetostrictive material. In another embodiment, a material susceptible to a Piezoelectric effect is employed. In a third embodiment, the member may include a material which expands or contracts when heated, and the activating device 5 is a heater.
Patent GB-1243585-A (GB)
Title: A process for the production of acrylonitrile polymers
Inventor: YAMAMOTO AKIRA
IPC: C08F291/00
Filed: 1969-10-02
Abstract: 1,243,585. Redox polymerizing acrylonitrile. TOYO BOSEKI K.K. 2 Oct., 1969, No. 48493/69. Headings C3G and C3P. A redox system for homo-, co-, or graft polymerizing acrylonitrile, comprises a reducing agent of zinc sulphite and an oxidizing agent, dissolved in a concentrated aqueous solution of zinc chloride or a mixture of zinc chloride and a small amount of at least one other inorganic salt. Preferred oxidizing agents are zinc persulphate, zinc chlorate, chloric acid, persulphuric acid, ammonium persulphate and hydrogen peroxide. The starting polymerization mixture preferably contains at least 50% by weight of acrylonitrile, and the zinc chloride solution preferably has a concentration of 40% by weight. Additional salts which may be present are magnesium and/or calcium chloride. Examples relate to copolymers of acrylonitrile and methylacrylate, and acrylonitrile and acrylamide. Examples 5 and 6 relate to producing graft polymers where casein is the base polymer and acrylonitrile is the grafted monomer, using the above novel redox system.
Patent GB-1519330-A (GB)
Title: Stacking and discharging device for flat articles to be conveyed
IPC: B65H29/58
Filed: 1975-11-26
Abstract: 1519330 Delivering sheets G A O GES FUR AUTOMATION UND ORGANISATION mbH 26 Nov 1975 [23 Dec 1974] 48586/75 Heading B8R Sheets 16 are delivered by belts 21, 22 to a rotating drum 1 having one axial row of openings to which suction or blowing air can be applied and which engage the leading end of a sheet, the arrangement being such that when suction is applied a sheet is carried round the drum 270 degrees until it abuts a stacking stop 12, whereby an on-edge stack is formed between the drum and a pivoted pressure plate 13, while when blowing air is applied a sheet is conveyed past the drum and between rollers 19, 23 and 24, 25. The trailing end of a sheet is stripped from the drum and directed into the stack by air from a nozzle 11, while the belts 22 strip the leading edge from the drum.
Patent GB-1283527-A (GB)
Title: Moulding press
Inventor: CLIVE DAVID SENIOR
IPC: B28B3/02
Filed: 1968-10-14
Abstract: 1283527 Presses; moulding concrete DAVY & UNITED ENG CO Ltd 7 Oct 1969 [14 Oct 1968] 48628/68 Headings B5A and B5F Concrete is moulded in a press defined by the horizontal and vertical limbs 13, 15, and 11 of a frame 10 within a mould which is supported by a plurality of platen members 5, each whereof is upwardly displaceable by at least one hydraulic ram, e.g. 2 and 3 in Fig. 3, to compress the concrete in the mould against a fixed top plate. The arrangement facilitates the addition and subtraction of platens, and transportation when the press comprises a number of separable frame units. The mould preferably comprises flexible side walls permitting the compression of the concrete against the fixed top plate. The rams are desirably controlled for identical displacement. To avoid differential displacement of adjacent platens, the rams 2 and 3 may engage adjacent platens 5, with the end platens 5<SP>1</SP> each being additionally engaged by a pair of rams 2 and 3 which act solely thereon, and controlled so as not to displace the platens 5<SP>1</SP> relative to the adjacent platens 5. In the Fig. 5 embodiment, the press comprises a plurality of similar units each in a framework 10 arranged in side by side relationship and each comprising a fixed plate 12, with a platen 18 supported against adjustable stops 19 in its lowermost position and secured to a pair of plates 16, against each of which is spring urged, by means 17, the upper end of the piston of a ram 14.
Patent GB-1164304-A (GB)
Title: Improvements in and relating to New Dyestuffs
Inventor: RAZAVI DJAVAD
IPC: C09B69/00
Filed: 1966-10-31
Abstract: 1,164,304. Thioethers. UGINE KUHLMANN. 31 Oct., 1966 [29 Oct., 1965], No. 48653/66. Heading C2C. [Also in Division C4] In Examples 1 and 10 bis-(#-methylthioethyl)- amine and bis-(#-ethylthioethyl) amine are prepared by reacting bis-(#-chloroethyl)-amine hydrochloride with methanethiol and ethanethiol, respectively, the first being isolated as a hydrochloride and the second as a free amine. In Example 7, bis-(#-methylthioethyl)-amine hydrochloride is reacted with m-nitrobenzene sulphochloride, the product m-nitro-N,N-bis-(#- methylthioethyl)-sulphamyl benzene, after recrystallization m.p. of 78-79 C., being subsequently reduced to the corresponding m-amino compound. In Example 9, N,N-bis-(#-methylthioethyl) - propylene diamine is prepared by reacting N,N- bis-(hydroxyethyl)-propylene diamine with thionyl chloride and the product, N,N-bis-(#- chloroethyl) propylene diamine hydrochloride, with methane thiol.
Patent GB-1485840-A (GB)
Title: Control for absorption refrigeration system
IPC: F25B37/00
Filed: 1974-11-15
Abstract: 1485840 Refrigerating BORG-WARNER CORP 15 Nov 1974 [5 Dec 1973] 49574/74 Heading F4H In a continuous cycle adsorption refrigeration system operating under reduced pressure and which in an alternative refrigerant cycle the generator 24 is substantially inoperative and the adsorber 40 condenses refrigerant vapour released in the evaporator 34, the condensed refrigerant passes via intercepting means formed by a pan 150 in the sump of the adsorber to the refrigerant circuit and the adsorbent solution is stored within the sump whereas in normal operation adsorbent solution is recycled to the absorber and generator. The operation of the generator is normally controlled by a thermostat 108 responsive to the temperature of chilled medium leaving the evaporator coil 28 which controls the supply of heated medium passing to the generator but in the alternative cycle the level of refrigerant condensate in the sump is determined by a means of a float switch 112. to control flow of heated medium to the. evaporator coil to a predetermined constant flow at a lower than normal rate sufficient. to prevent migration of refrigerant to the absorbent solution.
Patent GB-1283572-A (GB)
Title: Gas exploder systems
IPC: G01V1/104
Filed: 1969-10-09
Abstract: 1283572 Fluid operated hammers; explosive forming GEO SPACE CORP 9 Oct 1969 [10 Oct 1968] 49723/69 Headings B3H and B3Q [Also in Divisions F1 and H4] A gas exploder system for use in seismic exploration, metal forming or pile driving comprises a combustible gas mixture flow path extending to a combustion chamber, one portion of the path having an igniter and being connected to the chamber by a single flexible conduit, the conduit allowing movement of that portion relative to the chamber and providing for the gas mixture supply to the chamber and for the subsequent supply to the chamber of a detonation shock wave initiated by the igniter. For seisimc use, one or more combustion chambers 26 (Fig 1) can thus be coupled by a flexible conduit 30 (e.g. a plastics hose or corrugated stainless steel hose) to remote gas supply and igniter apparatus 10, 12, 20 on a ship or land vehicle. This apparatus comprises fuel and oxidizer supply lines 14, 16 including filters 36, 60 (Fig. 2), restrictors 38, 62 for proportioning the supply, solenoid valves 40, 64, check-valves 42, 66 to block the upstream shock wave, and a gas mixer/igniter comprising U-tube 54 with restrictors 70, 72 to generate turbulence and a sparkplug 84. The gas supply and ignition arrangement ensures consistent combustion in chamber 26 and the single conduit produces little seismic noise and towing drag in marine exploration.
Patent GB-1364503-A (GB)
Title: Constructional toys
IPC: A63H33/10
Filed: 1971-10-26
Abstract: 1364503 Stud-and-socket fastenings BIELEFELDER HAUSHALTSGERATE GES GmbH & CO KG 26 Oct 1971 [31 Oct 1971] 49750/71 Heading E2B [Also in Division A6] A connecting member 13 in a constructional toy has at least one stud having radial projections 14 to slide into slots 12 in holes 11 of a construction member 10 and thus prevent relative rotation between the connecting and construction members. As shown, the stud has a head 15 to be snap-fitted into the holes 11, and is of cross-shape with one pair of diametrically opposite short legs to fit between opposite sides of a hole and another pair of diametrically opposite relatively long legs to fit into the slots 12. In other forms, Figs. 3, &c., the head is omitted and the stud is of circular cross-section with two diametrically opposite radially extending legs to engage the slots. The connecting member 13 may be of arrow, straight, cross, T or L shape, Figs. 3-7 (not shown), or may be extended into two or more planes at right angles to each other, Figs. 8-11 (also not shown).
Patent GB-1310566-A (GB)
Title: Flame retardant cellulosic material
IPC: D06M13/288
Filed: 1970-10-20
Abstract: 1310566 Bis-(dialkylphosphono) propionic acid derivatives BORG-WARNER CORP 20 Oct 1970 [21 Oct 1969] 49827/70 Heading C2P [Also in Division D1] Compounds of Formula I: where each R is C 1-8  alkyl and X is -NH 2 , are prepared (a) by refluxing a compound of Formula II: where R is as defined above with an ion exchange resin and water, (b) by reacting a compound of Formula II with hydrogen peroxide and base, (c) by reacting alpha-chloroacrylamide with a trialkyl phosphite and an alkyl alcohol or (d) by reacting ethyl propiolate or ethyl alphachloro acrylate with a trialkyl phosphite and an alkyl alcohol to form a compound of Formula I where X is ethoxy and R is as defined above, and subsequently reacting this compound, which may be isolated, with ammonium hydroxide. Compounds of Formula I where R is as defined above and X is -NHOH 2 OH are prepared by reacting a corresponding compound where X is -NH 2  with formaldehyde and base. Compounds of Formula II are prepared by reacting alpha-chloroacrylonitrile with a trialkyl phosphite and an alkyl alcohol, or by reacting alpha-chloroacrylonitrile with a trialkyl phosphite to form a beta-dialkylphosphonoacrylonitrile, and subsequently reacting this compound with a dialkyl phosphite.
Patent GB-1453541-A (GB)
Title: Non-dispersive infrared gas analysis apparatus
IPC: G01N21/37
Filed: 1974-11-18
Abstract: 1453541 Infrared radiation detector BERGWERKSVERBAND GmbH 18 Nov 1974 49884/74 Heading G1A A non-dispersive infrared radiation detector has three receptor chambers 6, 7, 8 serially arranged in a radiation path, the outer two chambers are pneumatically connected and the pressure difference between the inner and the connected outer chambers is detected. The pressure difference sensor is preferably a membrane condenser. As shown, radiation from source 1a is passed through reference and test samples 4a, 4b and the sampled radiation is alternately presented to the detector by shutter 3. Radiation from another source 1b and further test and reference samples 4c, 4d may be similarly applied to the other end of the detector or the outer wall of chamber 8 may absorb radiation. The volume of chamber 7 is preferably the sum of the volumes of chambers 6 and 8. Chamber 7 may be movable relative to the others and may comprise a central axial metal body to assist thermal response. The chambers are preferably cylindrical.
Patent GB-1134212-A (GB)
Title: Thermal regenerators
Inventor: LETTINGTON CHRISTOPHER JOHN FR
IPC: F28D19/02
Filed: 1964-12-09
Abstract: 1,134,212. Thermal regenerators; heat storing apparatus. GAS COUNCIL. 8 Dec., 1965 [9 Dec., 1964], No. 50032/64. Headings F4K and F4U. A thermal regenerator comprises two U-shaped ducts containing respectively thermal storage beds 14, Fig. 2, 15, Fig. 1, shown as beds of refractory pebbles, each bed having a fluid inlet and fluid outlet aperture 16-19, respectively located at opposite ends of the bed, and all these apertures lying in a common surface which may be curved but is preferably plane being defined as shown by the upper surface of a plate member 9. Primary (heating) fluid is generated by a burner 20, Fig. 2, and after passing through one of the beds, e.g. the bed 14 as shown, is discharged through a flue 24. Simultaneously a secondary (heated) fluid (unspecified) passes through the other bed from an inlet 26 to an outlet duct 31 upstream of which is a heat transfer device 30 for maintaining a substantially uniform outlet temperature of the secondary fluid at the duct 31. The device 30 consists of liquid-solid phase-change refractory tube elements 34 which initially absorb heat from the heated secondary fluid when this is at its highest temperature having passed through a freshly heated bed. Subsequently when the bed begins to cool and the temperature of the secondary fluid falls, the elements 34 give up absorbed heat to this fluid. The beds 14, 15 are intermittently moved (e.g. rotated or oscillated on a turntable 6) so that each bed is traversed alternately by the primary and secondary fluids, and during the changeover when the burner 20 is shut down and both beds are temporarily cut off from the primary and secondary fluid streams (see Fig. 4b, not shown) a valve 33, Fig. 1, is opened to permit secondary fluid to pass direct from the inlet 26 to a pipe 29 downstream of the beds, and thence over the heat transfer device 30 which heats this fluid, to outlet 31; thus a supply of heated secondary fluid is maintained during the changeover period. Hydraulic jacks 10 maintain the sealing pressure between the relatively movable elements 8, 9 when the beds are operative. The bed which has just been heated may be purged using either a flow of secondary fluid, or a vacuum source, during the changeover period.
Patent GB-1509179-A (GB)
Title: Compression joints
IPC: F16L19/08
Filed: 1974-11-20
Abstract: 1509179 Compression joints PARAGON PLASTICS Ltd 31 Oct 1975 [20 Nov 1974] 50246/74 Heading F2G A compression joint has male and female members 10 and 12 which can accept a tube or tubular connecting piece as shown in dotted lines. A ferrule 16 is positioned in the female and is forced to grip the tube when the members are screwed together. The end of the male member is counterbored so that an 0-ring 22 can be positioned as shown. All of the parts, except the 0-ring, could be made of plastics.