baber/WOPTO huggingface dataset:
Patent GB-1435063-A (GB)
Title: Preparation of beta-aminopropionitrile
IPC: C07C255/24
Filed: 1974-07-30
Abstract: 1435063 #-Aminopropionitrile DAIICHI SEIYAKU CO Ltd 30 July 1974 [30 July 1973] 33669/74 Heading C2C #-Aminopropionitrile (APN) is obtained by reacting imino - bis - #,#<SP>1</SP> - propionitrile (IBPN) with excess ammonia to form an equilibrium mixture, and introducing acrylonitrile (AN) to the mixture so obtained. The process is preferably carried out in a continuous cycle in which, after introducing and reacting the AN, ammonia (aqueous) is recovered and recycled, APN is separated, e.g. by distillation, the residue is treated with an anion-exchange resin (to remove acidic by-products), IBPN is recovered and reacted with excess ammonia (aqueous) to equilibrium, and further AN is introduced to continue the cycle. Equilibration is preferably carried out at 130-170 C., and the mixture cooled before adding AN, e.g. to 105 C. Ammonia is preferably used in 3 to 30 fold excess over the IBPN, and in such quantity that it is, after the equilibration, in 3-5 fold excess over the acrylonitrile. The anion-exchange resin (strongly basic) removes by-products containing carboxyl groups, for example #-alanine, iminobis-propionic acid and imino-#-propionamide- #<SP>1</SP>-propionic acid; by eluting with sodium hydroxide and treating the eluate in turn with a strongly acidic cation-exchange resin and a weakly basic anion-exchange resin, #-alanine and imino-bis-propionic acid may be recovered separately; alternatively, by eluting from the strongly basic resin with aqueous ammonia, adding sodium hydroxide to the eluate, removing ammonia, and extracting with methanol, monosodium imino-bis-propionate and #-alanine may be obtained separately.
Patent GB-958954-A (GB)
Title: Improvements relating to grab devices
Inventor: REITER BRUNO
IPC: G21C19/105
Filed: 1959-10-06
Abstract: 958,954. Article engaging devices. ENGLISH ELECTRIC CO. Ltd. Sept. 30, 1960 [Oct. 6, 1959], No. 33830/59. Heading B8H. [Also in Division G6] A grab for use in the fuel channels of a nuclear reactor comprises a cylindrical body 14 attached to a hoist cable 16 and adapted to receive the component 10 to be lifted, the component having an adapter 11 provided with a rim 12 engageable by hooks 17 pivoted to a lower end flange 18 of the body 14. The arrangement is such that as the grab is lowered over the component the hooks 17 ride over the rim 12 and then swing back so that when the grab is subsequently raised they lift the component. A sleeve 22 surrounding the body 14 and normally resting on the flange 18 carries a number of pivoted lugs 27, each lug having a hole 30 receiving a nose 21 on a respective hook 17. An upper flange 23 on the sleeve 22 carries the plungers 25 of a plurality of solenoids 26 attached to the body 14 whereby the hooks 17 may be moved to the disengaged position by energizing the solenoids to lift the sleeve, Fig. 5, this operation being performed after lowering the component on to a support.
Patent GB-486929-A (GB)
Title: Improvements relating to devices for the automatic vending of electricity, gas, water or the like
IPC: G07F15/04
Filed: 1936-12-09
Abstract: 486,929. Prepayment mechanism for meters. ALLGEMEINE ELEKTRICITATS GES. Dec. 9, 1936, No. 33876. Convention date, Dec. 9, 1935. [Class 27] In a prepayment meter for gas, electricity, &c. the consumption meter drives the prepayment mechanism through a tariff device which is arranged and operates as described in Specification 437,761, [Group XXXVI]. As shown diagrammatically, the prepayment mechanism A has a shaft 1 connected to the planet wheel of a differential mechanism, one sun wheel of which is rotated by prepayment and the other by the meter through a wheel 2. The meter drives through a tariff device B which includes an actuating disc 4 corresponding to the disc 12 shown in Figs. 3a, 3b, 3c of Specification 437,761. The disc 4 operates either a pawl 5 to rotate a wheel 6 and thereby drive the wheel 2, or a pawl 8 acting to drive the wheel 2 through wheels 9, 10. The pawls 5, 8 are actuated respectively according as the consumption is above or below a certain limiting rate, so that, when the consumption in a given time is above a limiting rate, the commodity is charged for at a different price. Specification 445,923, [Group XXXVI], also is referred to.
Patent GB-175789-A (GB)
Title: Improvements in turbines
IPC: F02C5/12
Filed: 1920-12-01
Abstract: 175,789. Cooper, T. Dec. 1, 1920. Working-fluid supply. - Combustion products are supplied to a turbine by an arrangement comprising a double-acting oscillating-cylinder pump 2 which discharges combustible mixture through valves alternately into combustion chambers 3, 4 whence the combustion products pass through a valve-controlled passage 14 into the turbine 1. The pump is of the oscillatory type and is provided with a valve member 7 of disc form having therein ports 5, 6, 18, 19 and oscillating on the face of a fixed plate 8 provided with grooves 11, 12, 13, 16, 17. The grooves 11, 12 connect the ports 5, 6 with the ports 9, 10 of the combustion chambers 3, 4 during the respective compression strokes, and the combustion products pass, after firing by suitably timed sparking-devices, through the passage 13 to the inlet port 14 of the turbine. The ports 5, 6 are connected respectively during the suction stroke by the grooves 16, 17 to inlet ports 18, 19 communicating with a supply of combustible mixture. To provide a balancing effect the outlets from the combustion chambers to the turbine may be duplicated by the provision of a disc valve on both sides of the turbine.
Patent GB-1513265-A (GB)
Title: Washing machine having a device for controlling the water supply to dispensing chambers thereof
IPC: D06F39/02
Filed: 1975-08-15
Abstract: 1513265 Washing machines G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 15 Aug 1975 [4 Sept 1974] 34033/75 Heading D1A A washing machine has a rotatable cam 17 coupled to a pipe 14 for slewing it, against the biassing action of a spring or springs 26 holding a cam follower against an inner curved control surface of the cam, between successive operating positions whereat to supply water to treatment agent dispensing chambers 11, 12, 13 communicating with a treatment chamber, the spring force being greatest at positions of the cam follower on the control curve closest to the cam plate shaft 44. The treatment chamber houses a rotatable drum. Tension spring 26 is connected between pipe 14 and the machine housing. Wire 28 of adjustable length Bowden cable 29 is connected between pipe 14 and one end of slider 31 whose other end carries a shaft 42 and double rollers 43 which run on the inner curved control surface of plates 47, 48 anchored to programme controller shaft 44. Cam 17 rotates and as constant radius sector 56 passes rollers 43, a magnetic valve in the water duct remains open for water from a sprayer or nozzle on pipe 14 to wash washing powder from chamber 11 for the first washing. Straight sector 57 followed by constant radius sector 58 cause rollers 43 to move towards shaft 44, pipe 14 to slew about axle 21 to position B, washing powder for the main wash to be washed from chamber 12 and spring 26 to be stretched. Sector 59 causes pipe 14 briefly to move to position C, half over chamber 12 and half over chute 19 leading to chamber 13 containing a liquid soft rinse agent or a dressing agent. During sectors 61 and 62, pipe 14 returns to position B. Sectors 63 and 64 cause the pipe to move to position C and back to A.
Patent GB-1014874-A (GB)
Title: Rubbery interpolymers
IPC: C08F210/00
Filed: 1962-06-26
Abstract: The process of the parent Specification is used to prepare an amorphous sulphur-vulcanizable rubbery interpolymer of ethylene, at least one 1-olefin of the formula CH2 = CHR, wherein R is a saturated alkyl hydrocarbon radical having from 1 to 8 carbon atoms, and at least one cyclic diene which is either dicyclopentadiene, its exo isomer or methyl cyclopentadiene dimer, the said polymer containing from 2 to 25% by weight of the cyclic diene based on the total weight of the interpolymer, the remainder consisting of from 30% to 80% by weight of the 1-olefin and correspondingly from 70% to 20% by weight of ethylene based on the weight of the remainder, which polymer has not more than 5% crystallinity in the unstretched condition as shown by X-ray scattering and yields on vulcanization to an optimum state of cure a vulcanized polymer of which not more than 8% by weight is soluble after 24 hours immersion in cyclohexane at 25 DEG C.  The preferred 1-olefin is propylene.
Patent GB-467101-A (GB)
Title: Improvements in or relating to fire-extinguishing apparatus
IPC: A62C35/60
Filed: 1935-12-10
Abstract: 467,101. Inertia switches. NATIONAL FIRE PROTECTION CO., Ltd., and DENNE, R. A. Dec. 10, 1935, No. 34164. [Class 38 (v)] [Also in Group XXI] An inertia-control device for fire-extinguishing apparatus comprises two struts D and E mounted end to end in abutting relationship to form a toggle which is subjected to endwise pressure between the fixed abutment F and the spring - pressed movable abutment G. A flexible wire or the equivalent is passed through longitudinal bores in the struts and in the abutments and through a guiding tube L. The wire may have some slack, preferably at the lower end so as not to interfere with the collapse of the toggle. The toggle is reset by pulling the wire taut. A spring K surrounds the tube L and presses against the abutment G, the tension of the spring being adjusted by means of the screw cap J. At least one pair of the abutting surfaces is flat so that the toggle may rest in stable equilibrium and the struts and abutments may be tapered or recessed, as shown, to avoid relative lateral displacement. When the acceleration of the device exceeds a predetermined value, the toggle collapses, and the abutment G connects the two contacts N and P which are connected to the terminals R. The device is mounted in a bracket S which is adapted to be secured to a wall and has an insulating cup T to prevent accidental contact with the terminals R.
Patent GB-1439916-A (GB)
Title: Gas turbine engine fuel control system
IPC: G01F1/32
Filed: 1972-07-21
Abstract: 1439916 Gas turbine engine fuel systems LUCAS INDUSTRIES Ltd 9 July 1973 [21 July 1972] 34169/72 Heading F1G A gas turbine engine fuel system comprises a fluid flowmeter through which fuel flows to the engine, the flowmeter comprising a fluidic oscillator whose frequency of oscillation is dependent on the flow-rate, and means for generating an electrical signal which is a function of the frequency, means for generating another electrical signal which is a function of a desired flow-rate, and control means responsive to a difference between the signals for causing a variable flow restrictor to vary the flow-rate. An engine-driven fuel pump 43 with its own output pressure control, e.g. a centrifugal or positive-displacement pump with a pressure relief valve or a displacement control, delivers fuel to  the engine 42 via a fluidic oscillator in the form of a bi-stable wall attachment effect device in which the jet from a nozzle 10 is deflected by a jet from either of two ports 13, 14 into a passage 12 or 11 where it is retained by the wall attachment effect. The ports 13, 14 are inter-connected by a conduit 15. The oscillation frequency is a measure of the fuel flow-rate. The passages 11, 12 are connected to a common outlet 18 by way of respective filter chambers 16, 17 each containing a cylindrical filter element 19. The oscillations are converted into a pulsating electrical output by means of diaphragms 26, 27 inter-connected by the armature 28 of a differential transformer 29. A control circuit 40 responsive to the position of a manual control 44 and also several engine variables including engine speed and compressor delivery pressure supplies an oscillating output on a line 45 to a difference amplifier 37 which is also fed with the output from the transformer 29. The amplifier 37 acts via an electro-hydraulic servo actuator 36 to control the position of a valve 35, and receives a position feedback signal from a position transducer 41. The valve 35 receives filtered fuel from the chambers 16, 17 via restrictors 22, 23, 24 and an accumulator 25, and supplies it via a manifold 33 to the tangential inlets 32 of a fluidic variable flow restrictor device 30 whereby a swirling flow pattern is created around a centre body 31 to control the resistance to flow through the device 30. Equilibrium occurs when the frequency of the fluidic oscillator, representing the actual fuel flow, is equal to the frequency of the output from the control circuit 40, representing the desired fuel flow. The fuel for operation of the actuator 36 may be taken from some other filtered supply and fuel for operation of the device 30 may then be taken direct from the pump 43.
Patent GB-1350414-A (GB)
Title: Cable connector
IPC: H01R13/642
Filed: 1971-07-22
Abstract: 1350414 Two-part couplings J D KINNEAR 22 July 1971 [23 July 1970] 34421/71 Heading H2E An electrical connector comprises one or more pairs of cylindrical contact conductors 40, 42, a resilient contact sleeve 58 on the end of conductor 40 and an insulating guide pin 62 for coaxially aligning conductor 42 with sleeve 58 prior to and during relative axial movement into telescopic engagement of conductor 42 within sleeve 58. The contact housings include two interfitting boots 30, 32 of resilient material, e.g. rubber with necks 44 whereby they are clamped to the insulation of cables 26, 28, the cable conductors being crimped to contact conductors 40, 42 respectively. Each may include two contacts and have provision for entry of two cables (Fig. 1, not shown). Contact conductors 40, 42 are mounted within rigid shells 34, 36 by D-rings 56 in carriers 38 the contacts being secured to the D-rings by pins 57. As shown sleeve 58 comprises petals 112 circumferentially arranged round spacer ring 116 and biased inwardly by two garter springs 114. Rim 60 on end wall 52 of shell 34 aids in positioning the petals. Guide pin 62 extends beyond the end of contact 40 and ends flush with end wall 52 leaving an annular opening for entry of contact 42 and preventing accidental touching of contact 40. A slot 86 in pin 62 may be aligned with a key 76 within contact 42, and where equipment using different voltages is being employed, the radial position of slot 86 and key 76 may correspond to a parti. cular voltage to prevent incorrect connection (Fig. 5, not shown). The connector may include a releasable latching means (Fig. 6, not shown). The tight interfitting of boots 30, 32 results in a vacuum being created when the parts are being separated and aids in reducing arcing.
Patent GB-1087285-A (GB)
Title: An anti-splash device, particularly for attachment to a water tap
IPC: E03C1/084
Filed: 1966-08-01
Abstract: 1,087,285. Aerator/filter for a water tap. J. MULLER. Aug. 1, 1966 [July 30, 1965], No. 34438/66. Heading BID. [Also in Division F2] An anti-splash/aerator device for fitting on a water tap 11, comprises an inward flow edge filter 5, consisting of annular discs grooved on one or both sides and mounted on a support 13 of cruciform section. The support 13 is detachably press fitted into body 1, and an end piece 2 is similarly attached to the end of body 1, teeth 2a providing annular air inlet 7 which aerates the water. Metal gauzes 6, 9 may be fitted to the outlet ends of end piece 2 and body 1. Rubber or plastics connection 4 may be replaced by a compressible ring (16) located within connecting ring 3, to attach the device to a tap (Fig. 5, not shown). The filter is cleaned by reversing the flow or after dismantling.
Patent GB-1457642-A (GB)
Title: Cooling arrangement for semiconductor components method of preparing granulated vitaminized coating mineral food complements for animals and products thus obtained
IPC: H02M7/04
Filed: 1974-08-05
Abstract: 1457642 Semiconductor devices SIEMENS AG 5 Aug 1974 [14 Aug 1973] 34467/74 Addition to 1427624 Heading H1K A stack of semiconductor components 5 e.g. disk thyristors each mounted between a pair of heat conductive e.g. Cu. blocks 3, 4, is cooled by heat pipes 6, 7, lined with capillary-form wicks and partially filled with a volatile liquid, which extend outwards from within the blocks normal to the axis of the stack, the pipe(s) associated with a respective pair of blocks being optionally mutually inclined and inclined to those associated with an adjacent pair. As described each block has a pair of finned parallel heat pipes extending through bores in it and a truncated conical extension bearing against a flat face of the component. The stack is mounted centrally of a cylindrical duct 11 of transparent plastics having an axial-flow fan mounted on its axis with the outer ends of the pipes arranged to lie on a spiral, the flow of air being directed over them by inclined sectorial baffles attached to the inner wall of the duct. Free space in the duct is occupied by associated components e.g. transformers, transistors and rectifiers. A more compact arrangement may be achieved by combining abutting blocks such as 4a, 3b into a single block.
Patent GB-176152-A (GB)
Title: Improvements in spraying apparatus
IPC: B05B7/12
Filed: 1920-12-07
Abstract: 176,152. Burdick, C. L. Dec. 7, 1920. Air-pressure sprayers.-In sprayers for paint, varnish, enamel, &c. having an air valve and a needle valve for the control of the liquid, the needle 4 is secured by a clamping-piece 13, Figs. 1 and 2, one end of which forms an abutment for the spring 14, which is secured in an adjustable sleeve 15. The needle valve is operated through lugs 22 on the sleeve 13 engaging slots in the finger lever 16. Simultaneously with the operation of the needle valve, the lever also operates the air-valve 18 through the roller 18, cam 19, and adjustable connection 20, 21. As shown, paint is supplied through the passage 9, but theapparatus may be adapted for use with a cup by removing the plug 10' and inserting in place the plug 12, Fig. 3, to close the passage 9 and at the same time removing the cap 11 and screwing in the paint cup on its place. Air is supplied through passages 5, 6, the air passages being arranged in relation to the air valve 8 so that they may be readily cleaned, a removable plug 26 being. screwed into the passage 6 to permit this.
Patent GB-639623-A (GB)
Title: Improved cup dispensing machine
IPC: B65G59/10
Filed: 1947-12-29
Abstract: 639,623. Coin-freed article delivery apparatus. MERCER, R. (Dixie Cup Co.). Dec. 29, 1947, No. 34485. [Class 27] [Also in Group II] In a machine for dispensing cups one at a time from a stack of nested cups the lowermost cup is initially removed from the stack by a plurality of uni-directionally rotating worms of constant pitch and having means for engaging the lip of the lowermost cup of the stack and conducting the same to the lower ends of the worms, and on arrival of the cup at the ends of the worms the operation is automatically interrupted and the cup held until a further movement of the worms is initiated, e.g. by a coin-freed mechanism closing the starting circuit of an electric motor. At the commencement of rotation of the worms the cup is dropped to a filling station and the cup then lowermost in the stack is transferred to the lower ends of the worms. The holder for the stack of cups has an opening in the bottom thereof with which the rotatable worms are axially aligned and as shown in Fig. 8 each worm includes an upper supporting surface 28 providing an auxiliary support for the stack of cups and a step-down lower holding surface 23 extending about one-third around the worm and forming a normal support for the stack at the end of a cycle of operations. The two surfaces 23, 28 are so correlated that as the wedge portion 29 at the top of the worm thread enters between the two lowermost cups 30, 32 (Fig. 6) it separates off the lowermost one 32 as this cup leaves the lower holding surface 23 and it thus rides down the thread which makes one complete turn from the surface 23 to the end 26, while the remaining cups 30 rest on the surface 28, and then drop on to the surface 23 in readiness for the next cycle of operations. A lever, the end of which normally bears on the cups in the stack in the holder moves forward when the stack is exhausted and operates a switch to start a motor for moving the next stack into the holder, whereupon the lever again contacts the cups, opens the switch and stops the motor.
Patent GB-795154-A (GB)
Title: Thermoplastic container
IPC: B65D35/12
Filed: 1955-12-02
Abstract: 795,154. Making collapsible containers. TUBOPLAST SOC. ANON. Dec. 2, 1955 [Dec. 28, 1954], No. 34582/55. Class 87(2). [Also in Group XVII] A preformed thermoplastic tubular body 20 is held fixed between a mandrel 56 and a mould 42, the tubular body 20 being in contact with a cylindrical portion 48 of the mould and having its margin 30 folded over inwards by a curved profile 46 and a frusto-conical surface 44 of the mould. A pin 64 on the mandrel 56, engaging in a socket 54 in the mould, ensures that a space is left between the mandrel and the mould. Into this space hot molten thermoplastic material is injected through channels 66 to form a head-piece which fuses with the margin 30 of the body 20. The extremity of the margin 30 is blunt, that is, it is not reduced down to a knife edge. The thermoplastic material may be polythene or polyvinyl chloride.
Patent GB-971046-A (GB)
Title: Substituted naphthol derivatives
Inventor: HUNTER WILLIAM HUBERT
Filed: 1960-10-10
Abstract: The invention comprises substituted naphthol derivatives of the general formula <FORM:0971046/C1/1> wherein R is C1- 6 alkyl, C1- 6 hydroxyalkyl, alkoxyalkyl (C1- 6 in each part) or acyloxyalkyl (C2- 6 acyl and C1- 6 alkyl); and the preparation thereof by reacting a compound of the general formula <FORM:0971046/C1/2> with a b -haloethanol in the presence of an acid acceptor, or with ethylene oxide or ethylene carbonate.  Pharmaceutical compositions may be prepared from the above compounds and either solid non-toxic carriers such as starches, lactose, glucose, kaolin, phosphates, ion exchange resins or alginates for oral administration or liquid non-toxic carriers such as aqueous saline or glucose solutions for injectable preparations or solutions containing flavourings or colouring agents for oral administration.  The compounds have activity as muscle relaxants or anti-convulsants.  According to the Provisional Specification, R may also represent an aryl radical.  Specification 969,198 is referred to.