baber/WOPTO huggingface dataset:
Patent GB-895745-A (GB)
Title: Compositions and process for the manufacture of laminated thermoplastic sheet material having high impact strength
Inventor: BARFORD JOHN COWPER
IPC: C08L55/02
Filed: 1958-12-03
Abstract: A synthetic resin composition comprises:-(1) a rigid vinyl chloride polymer containing more than 95 wt. per cent vinyl chloride; (2) a copolymer of more than 50 wt. per cent vinyl chloride and 5 to 40 wt. per cent of a vinyl ester; (3) a rubbery copolymer of 50 to 90 wt. per cent of isoprene or butadiene-1:3, 5 to 30 wt. per cent of styrene or an alpha- or nuclear-substituted p  styrene, and 5 to 30 wt. per cent of acrylonitrile or an alpha-substituted acrylonitrile, there being 30 to 70 wt. per cent of (2) and 1 to 25 wt. per cent of (3) based on the mixture of (1) and (2).  Substituted styrenes mentioned are alpha-methyl-, mono and di chloro-, and alkoxy-styrenes and vinyl toluenes.  The acrylonitrile may be substituted with a methyl group or chlorine atom.  Optional ingredients mentioned are copolymers of styrene with acrylonitrile or methacrylate esters; titanium dioxide; tin mercaptide or dibutyl tin maleate; sodium or calcium stearate, and pigments.  The preferred method of compounding is to disperse (3) in (1) and blend the dispersion, optionally with a further amount of (1), into (2).  The final blend may then be calendered.  The compositions claimed in Specification 814,532 are disclaimed.  Laminating.  Calendered sheets of the above composition may be laminated, e.g. to a thickness of 0,120 inches in a heated press at 180 DEG C. and 200 p.s.i.g.
Patent GB-1348082-A (GB)
Title: Preparation of tetrakis alphahydroxyorgano phosphonium acid salts
IPC: C07F9/54
Filed: 1972-08-23
Abstract: 1348082 Quaternary phosphonium compounds HOOKER CHEMICAL CORP 23 Aug 1972 [25 Aug 1971] 39238/72 Heading C2P Phosphonium salts of Formula I where R is hydrogen, C 1-6  alkyl or haloalkyl, C 2-6  alkenyl or haloalkenyl, C 5-10  aryl or haloaryl or C 3-6  cycloalkyl or halocycloalkyl and X is an anion of an acid are prepared by reacting elemental phosphorus with an aldehyde and an acid in the presence of an electropositive metal and in an inert atmosphere. Preferably concentrated hydrochloric acid is added slowly to a warm mixture of phosphorus and aqueous formaldehyde in the presence of a finely divided electropositive metal, the mixture is heated at 60-90 C., the solution obtained is evaporated to dryness and tetrakis(hydroxymethyl)phosphonium chloride is recovered. The acid may also be sulphuric, phosphoric, hydrobromic, oxalic, formic or acetic acid. The metal may be zinc, lead, magnesium, iron, aluminium, tin or sodium.
Patent GB-1479775-A (GB)
Title: Handling apparatus
IPC: B65G47/29
Filed: 1974-09-09
Abstract: 1479775 Feeding articles from magazines FORENADE FABRIKSVERKEN 9 Sept 1974 [9 Oct 1973] 39306/74 Heading B8S Article supports, e.g. coat hangers, stored on an inclined rod 3 are removed singly by means of a rod 10 provided with a hanger receiving notch and a pusher 12, 13 for pushing a hanger from the notch, the rod 10 being carried by an arm 14 pivotable between a hanger receiving position adjacent the inclined rod 3 and a discharging position adjacent a track 20, 22. A piston 7 operates stop means to release the hangers singly for receipt by the rod 10.
Patent GB-337273-A (GB)
Title: Measurement foundation garment for use in measuring the figure
IPC: A41C1/00
Filed: 1929-12-23
Abstract: 337,273. Grinager, H. N., and Ongley, G. E. Dec. 23, 1929. Measuring.-To obtain the measurement of the body for corsets, brassieres, and the like, the wearer dons a garment which is used to mould the wearer's figure and the measurements are taken while the garment is on the body. As shown, the garment comprises a front panel, shown in Fig. 3, and a main body part for the back and sides, shown in Fig. 1. The main part has a series of eyes for adjusting to the size of the wearer, the eyes engaging hooks 11 on the front panel. Laces 10 are used for moulding the figure of the wearer. Coolured stitches 12 indicate the waistline for measurements purposes and slots may be arranged for passing the tape through. A vertical pocket may be provided to pass a flexible measure of length therethrough to obtain the vertical height of garment.
Patent GB-1468442-A (GB)
Title: Rotary switches
IPC: H01H19/58
Filed: 1974-09-12
Abstract: 1468442 Rotary switches E SHIMODA 12 Sept 1974 [29 Sept 1973 8 Nov 1973 24 Jan 1974 26 Feb 1974] 39839/74 Heading H1N A fixed helical coil 1 formed from insulating material in strip form has a plurality of contacts 14 attached thereto and is supported from a structure 2, 3, 4, journalling a shaft 5 within said coil, said shaft 5 carrying a sliding member 17 having a rotary contact 18 engaging said helical coil so that as said shaft 5 is rotated said rotary contact 18 is guided by the helical coil to successively electrically connect the contacts 14 of said plurality to a terminal 12 which is slidingly connected to one end of a conductor 16 fixed with respect to the shaft 5 and electrically connected to the rotary contact 18. As shown shaft 5 has an insulating square-section guide member 6 carrying two conductors 16 each with a portion 20 engaging terminal plate 12, and the rotary contact has sliding wipers 19 formed integrally with resilient wipers 18. The contacts 14 have loop portions (14a, Fig. 4, not shown), clamped around strip 1, not necessarily at regular intervals, and extra wide contacts (15, Fig. 5, not shown), may also be similarly mounted. In a second embodiment the helix is built up of contiguous individual loops (110, Figs. 6 to 9, not shown), and in a third embodiment (Figs. 12 to 15, not shown) the helix (221) is conical. A fourth embodiment (Figs. 16 and 17, not shown) has parallel leads (318a, 318b) inside support tubes (311) so that the resistance of the switch and its magnetic induction is very small.
Patent GB-1525593-A (GB)
Title: Planetary change-speed gears more particularly for motor vehicles
IPC: F16H3/66
Filed: 1975-09-30
Abstract: 1525593 Change-speed planetary gears ZAHNRADFABRIK FRIEDRICHSHAFEN AG 30 Sept 1975 [5 Oct 1974] 39939/75 Heading F2D  A planetary gear system has, in a casing 6, four gear trains I, II, III, IV between an input shaft 5 and an output shaft 7, clutches A, B, C and D being provided to couple shaft 5 to shafts 1, 2, 3 or 4 respectively and brakes E, F, G and H being provided to brake the sun gear 41 of gear train IV or the ring gears 33, 23, 13 respectively of trains III, II and I. The arrangement provides eight forward and six reverse ratios and is capable of modification by the omission of one or more clutches, shafts, brakes and/or gear trains to reduce the number of available ratios (Figs. 3 to 13, not shown).
Patent GB-1006066-A (GB)
Title: An attachment for use with machine tools such as automatic lathes
IPC: B23B31/20
Filed: 1962-10-23
Abstract: 1,006,066. Lathes. NATIONAL ACME CO. Oct. 23, 1962 [July 6, 1962], No. 40132/62. Headings B3B and B3T. An attachment for gripping and supporting a workpiece when it is ported off on a machine tool such as an automatic lathe comprises a housing 21 mountable on the tool slide 16 of the machine and having a hollow spindle 24 which is rotatably driven through gear means from the machine. A collet chuck 29 is secured to the end of the spindle 24 and is actuated by a reciprocatable collet sleeve 30. The sleeve is actuated by pneumatic means in the form of a cylinder and piston 47. The piston includes a reciprocatable cam sleeve 43 having an internal cam surface 44 which co-operates with balls 42 located in grooves 35, 38 in the collet sleeve which serve to lock the collet sleeve in forward position so as to retain the gripping action of the chuck on the workpiece 77. In operation, the attachment is reciprocated on the machine slide 16 by roller cam and lever means 86, 79 driven from the machine. In the forward position of the attachment, the chuck is adapted to grip the workpiece and rotate therewith during the parting off operation, when parting off is completed the attachment moves rearward carrying the parted off workpiece 77. The attachment then moves forward to a position determined by an adjustable stop 84 whereat the parted off face of the workpiece is machined. When this is completed, the attachment is fully retracted, the pneumatic means actuates the chuck to release the workpiece which is then ejected by a rod 73 located within the spindle 24. A circuit diagram for the automatic operation of the attachment is shown.
Patent GB-1082173-A (GB)
Title: Solenoid drive circuit and data printer utilizing same
Inventor: DERC ROMAN
IPC: G06K15/07
Filed: 1963-10-11
Abstract: 1,082,173. Semi-conductor switching circuits. ENGLISH ELECTRIC-LEO MARCONI COMPUTERS Ltd. Oct. 9, 1964 [Oct.11, 1963], No. 40191/63. Heading H3T. [Also in Division B6] A selective printer including a continuously rotating type carrier 10, having peripheral rows of identical type characters 11 and a plurality of hammers 15 associated with the characters in the row, is provided with operating means for the hammers each of said means including an electromagnet 21 for applying an impulse to the hammer on energization of a winding 22, discharging means for connecting a storage capacitor 27 to the winding and charging means including a charging transistor 34 and a charge control transistor 36 to charge the capacitor to a predetermined value. In operation a trigger pulse is applied to an input terminal 53 which renders conductive a trigger transistor 48, whereby trigger transformer 45 applies a signal to a control gate 30 of a silicon-controlled rectifier 24 which is rendered conductive to discharge the capacitor 27 and apply an impulse to the selected hammer winding 22. When the rectifier 24 ceases to conduct the capacitor 27 is re-charged by the charging transistor 34, the charge being limited by the charge control transistor 36, which in turn is controlled by a variable voltage source 44. To control the impression of individual hammers 15 the charge of the capacitor 27 is limited to a predetermined value by adjustment of a reference potentiometer tapping 41. Overall impression control is obtained by varying the potential of the stabilized source 44.
Patent GB-861255-A (GB)
Title: Improvements in processes of photographic reproduction
Inventor: WILLIAMS LESLIE ALFRED
IPC: G03C8/24
Filed: 1957-12-30
Abstract: Diphenyl - iodonium - 5 - methyl - benzotriazole is prepared by adding an ammoniacal solution of 5-methylbenzotriazole to a solution of diphenyl iodonium hydroxide.
Patent GB-1219437-A (GB)
Title: Improvements relating to power supply circuits
Inventor: BAKER ALAN ROY
IPC: H02M1/15
Filed: 1968-08-23
Abstract: 1,219,437. Smoothing circuits for static rectifiers. BRITISH AIRCRAFT CORP. Ltd. 22 Aug., 1969 [23 Aug., 1968], No. 40496/68. Heading H2F.  The D.C. output from a static A.C./D.C. converter (10), (Fig. 5, not shown), is smoothed by an arrangement in which each half sine wave is variably pulse width modulated, the pulse width being greatest where the voltage amplitude is least (Fig. 1, not shown), and if the resulting h.f. ripple is removed a constant output voltage waveform as shown, Fig. 2, is obtained. In addition, in order to fill in the troughs between the half waves storage capacitors are charged from the rectified current during an intermediate portion of each halfwave which includes the maximum amplitude thereof and the capacitors are discharged into the output of the smoothing circuit during the other parts of the half cycle. Figs. 3e, 3f, 3g illustrate the output power waveforms. Smoothing circuit operation.-An oscillator is started by a detector in response to the detection of a trough, and is synchronized to the converter A.C. input. It produces 32 pulses for each half cycle thereof which pulses are applied to a counter (30), Fig. 5 (not shown). The counter controls the pulse width modulation period and the capacitor storage charge and discharge periods. Thus at a count of 11 a trigger pulse fires a thyristor 13 (Fig. 7) which initiates charging of storage capacitors C 1  to C 10 . Each capacitor becomes charged to (2V-v) volts, the choke L 1  adding to the charge when the thyristor T 13  is turned off, (V being the input voltage to the smoothing circuit and v the remanent charge in C 1  to C 10 ). Charging continues until a count of 22. From a count of 28 in the same counting cycle until a count of 5 in the next counting cycle the ten capacitors are discharged sequentially via thyristors T 1  to T 10 , into the two halves alternately, of the primary of a transformer 16. When a discharge thyristor is fired a commutating capacitor C 11  causes the previously fired thyristor to turn OFF. From counts 6 to 27 the converter (10) output is pulse width modulated by chopping thyristors T 11 , T 12  which are fired alternately to give push-pull input to the transformer 16 primary. Firing of the chopping thyristors T 11 , T 12  is inhibited during the discharge of the capacitors. The transformer 16 feeds a plurality of output channels each of which include thyristors T 14 , T 15  which rectify and pulse width modulate the output to control the output voltage. Choke L 2  reduces the chopping frequency ripple (3.2 KHz). Diode D 11  is a free wheel diode. The pulse width modulation may be on the output side only of the transformer
Patent GB-939209-A (GB)
Title: Improvements in or relating to the production of carbon disulphide and hydrogen sulphide
Inventor: BANKS ARTHUR ASHTON
Filed: 1958-12-17
Abstract: Carbon disulphide and by-product hydrogen sulphide are produced by reacting a preheated, vapourized, hydrocarbon feed consisting predominantly of hydrocarbons having at least 5 carbon atoms/molecule and which is liquid at ambient temperature and is substantially vapourized at below 200 DEG C., with sulphur vapour in the absence of a catalyst, without premixing of these reactants prior to the reactive zone and at substantially atmospheric pressure the reaction zone being maintained at 750 DEG -1300 DEG C.  The hydrocarbon feed may be, aliphatic, alicyclic or aromatic preferably consisting predominantly of C6 hydrocarbons.  The reaction may be carried out at 900 DEG -1000 DEG C. under isothermal or adiabatic conditions.  To avoid cracking of the hydrocarbon feed by preheating at high temperature, the sulphur vapour may be super heated and the hydrocarbon feed preheated to a correspondingly lower temperature. The reaction may also be effected in the presence of hydrogen, preferably introduced with the hydrocarbon feed, to produce exothermic reaction with the sulphur to avoid corrosion of the apparatus by sulphur preheated to too high a temperature.  Under adiabatic conditions in practice with a well-lagged reactor the reactants are preheated to at least 750 DEG C. to promote exothermic reaction.  Dilution of the hydrocarbon feed with an inert gas e.g. nitrogen is also referred to.  Gases leaving the reaction zone are cooled to condense sulphur which is recycled, further cooled or washed with light oil to isolate carbon disulphide and washed with an aliphatic amine to isolate H2S.  H2S recovered from the amine may be converted by the Claus process to sulphur which is recycled, or used as such for example, in the manufacture of sodium sulphide. Specifications 796,153 and 798,947 are referred to.
Patent GB-972253-A (GB)
Title: Transistor scan generator
IPC: G04B19/10
Filed: 1961-11-14
Abstract: 972,253. Transistor sawtooth generators; cathode-ray tube circuits. FERNSEH G.m.b.H. Nov. 14, 1961 [Nov. 16, 1960],-, No. 40693/61. Headings H3T and H4T. In a transistor circuit for feeding a sawtooth current waveform through a coil, the output resistance is reduced by a positive feedback path, the feedback being reduced or suppressed during the flyback period. Fig. 5 shows a line time-base for television equipment in which a sawtooth voltage is generated at a by charging C17 via R32 and discharging when transistor T1 is made conductive by an input pulse fed via C18. Transistor T1 is biased by current fed via a Zener diode Zo to the emitter. The sawtooth waveform at a is passed via an emitter follower T2 to a four-stage amplifier comprising transistors T3 . . . T6, linearized by negative feedback via resistors R4, R5 and by feedback across un-by-passed resistors R26, R2, R18, R14. Positive feedback is provided via resistors R1, R11 to reduce the output resistance of T6 so that the deflection coils L are damped during the forward stroke. Capacitor C10 is included so that the positive feedback is ineffective during the flyback time hence the oscillatory circuit formed by the deflection coils L and their self-capacitance Cap can execute a half-cycle of oscillation with the result that the current in coils L is rapidly returned to its initial value. Alternatively, a pulsed diode clamp shown as S12 can be rendered conductive to inhibit the feedback at this time. A further negative feedback path via capacitor C9 and resistors R7, R8 is provided to minimize the effect of exponential charging of capacitor C17. The operating point of transistor T6 is stabilized by a negative temperature coefficient resistor R13 in contact withthe envelope of T6. Cathode-ray tube circuits.-A beam-shifting current is adjustable by potentiometer P andfed via a choke Dr to the deflection coils L.
Patent GB-1275298-A (GB)
Title: Vapor generator for operation by liquid metal or molten salts
IPC: F22B1/06
Filed: 1969-08-14
Abstract: 1275298 Vapour generators COMBUSTION ENG Inc 14 Aug 1969 [16 Aug 1968] 40758/69 Heading F4A A vapour generator, Fig. 1, utilizing liquid metal or molten salts comprises a heat exchange chamber 22 containing pressure tubes 46 which connect a downtake plenum 33 with a vapour collection chamber 18, each pressure tube 46 concentrically containing a tube arrangement, Fig. 2, which comprises tubes 56, 60 the latter tubes being connected to an inlet plenum 28 for vaporizable liquid. The liquid (water as described) flows up tubes 60 and down the annular passage between the tubes 56, 60 to an evaporator outlet plenum 30 as a steam water mixture. The latter results from the liquid metal or molten salts, from a nuclear reactor, which enter through an inlet 24 and are directed by baffles 72, 54 around the tubes 46 to an outlet 26. The mixture is then delivered to separators 74 from which the separated water returns to the inlet plenum 28 via the downtake plenum 33 and pump 42. Separated steam is passed through a drying screen 76 to flow up the annular space between tubes 56, 46 into the collection chamber 18 and then through an outlet 20 as superheated steam which drives a turbo-generator set. The superheating is achieved by tube extensions 64 having spiral fin spacers 66 to direct the steam against the walls of respective tubes 46. Fin spacers 68, 70 act also as guides for steam flow. When certain high temperature liquid metals are used a blanket of inert gas such as argon is provided between a tube sheet 48 and baffle 80 to reduce thermal stress and shock. An additional baffle 82 causes flow reverse of the exiting heating medium to separate any entrained inert gas.
Patent GB-1059349-A (GB)
Title: Ester of a basically substituted cycloalkanone carboxylic acid
IPC: C07D295/04
Filed: 1963-11-05
Abstract: The invention comprises 2-(b -hexamethyleneimino - ethyl) - cyclohexanone - 2 - carboxylic acid benzyl ester and acid addition salts thereof and a method for the preparation thereof by reacting cyclohexanone - 2 - benzyl - carboxylate in the form of an alkali metal compound with b  - hexamethyleneimino - ethyl halide. The ester or acid addition salts may be employed as antitussives in admixture with a pharmaceutically acceptable diluent or carrier.
Patent GB-1187072-A (GB)
Title: N-Amino-Substituted 4-Anilino-Pyridines
Inventor: DELARUE JEAN-LOUIS
IPC: C07D213/74
Filed: 1968-04-11
Abstract: 1,187,072. Anilino-pyridine derivatives. LABOBATOIRES TORAUDE. 11 April, 1968, No. 40939/69. Divided out of 1,187,071. Heading C2C. Novel compounds I in which R is H, halo, C 1-4  alkyl, C 1-4  acyl, -CF 3 , -NO 2 , primary, secondary or tertiary amino, -CN, carboxamido, -COOH, or carbalkoxy; m is 1, 2 or 3; R 1  is C 1-4  alkyl; and R 2  is C 1-4  alkyl, heterocyclyl-methyl or R 1  and R 2  together with the adjacent nitrogen atom form a 5- or 6-membered heterocyclic ring which may contain an additional hetero-atom and their acid addition salts are prepared by condensing the appropriate 4-anilino-pyridine II with acrylonitrile to obtain a compound III hydrolysing III to give the corresponding carboxylic acid IV and finally condensing the acid with an amine HNR 1 R 2 , followed where desired by acid addition salt formation. Intermediates isolated are the compounds III and IV above. Pharmaceutical compositions comprise a novel compound I together with a suitable excipient for oral or parenteral administration as excitants and anti-depressants.
Patent GB-949731-A (GB)
Title: Selective protective gear, particularly differential protective gear for protecting a transformer
IPC: H02H7/045
Filed: 1961-11-16
Abstract: 949,731. Protective systems &c. BROWN, BOVERI & CO. Ltd. Nov. 16, 1961 [Nov. 18, 1960], No. 41000/61. Heading H2K. A differential protective system for a power transformer 1 is provided with phase-sequence filters 10, 11 to segregate the positive and negative phase-sequence components of the through-current restraining-quantity and the difference operating-quantity. In the arrangement shown, the relay 33 is energized by a positive phase - sequence difference current through rectifier 32 and auxiliary transformer 24 and by a negative phase-sequence difference current through rectifier 31 and transformer 23. Similarly the relay 33 is restrained by the positive and a negative phase-sequence throughcurrent components applied through rectifiers 30, 29 and transformers 22, 21 respectively. The transformers 21, 23 have a transformation ratio twice that of the transformers 22, 24 to increase the effect of the negative phasesequence components. The filter 10 may include inductors 14, 19 and the filter 11 a capacitor 17 so that harmonics tend to increase the restraining components. Reference is also made to the use of an A.C. relay or a valve or transistor circuit instead of a D.C. relay.
Patent GB-1508558-A (GB)
Title: Elevator system
IPC: B66B15/04
Filed: 1976-10-05
Abstract: 1508558 Elevator traction sheaves WESTINGHOUSE ELECTRIC CORP 5 Oct 1976 [7 Oct 1975] 41267/76 Heading B8B An elevator system comprises an elevator car and counterweight interconnected by cables 42 which pass over a traction drive sheave 34. The latter includes a groove for each cable 42, and each groove is formed by a pair of opposed independent metallic ring portions 36, 38 spaced apart axially of the sheave. Upon loading the cable, the ring portions 36, 38 rotatably elastically deflect towards each other to increase grip on the cable.
Patent GB-1009237-A (GB)
Title: Improvements in or relating to systems for determining the positions of moving vehicles
IPC: G01S11/08
Filed: 1962-10-31
Abstract: 1,009,237. Radio navigation. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 31, 1962 [Oct. 31, 1961], No. 41281/62. Drawings to Specification. Heading H4D. In a system for determining the position of a vehicle on the earth's surface by measuring the time displacement between pulses generated therein and pulses received from an artificial earth satellite, the recurrence frequency of the former pulses is a multiple of that of the latter pulses. Specification 994,082 is referred to.
Patent GB-1026392-A (GB)
Title: Pipe connections
IPC: F16L5/08
Filed: 1962-11-02
Abstract: 1,026,392. Pipe connections. RHEINISCHES METALLWERK G.m.b.H. Nov. 2, 1962 [Nov. 24, 1961], No. 41624/62. Heading F2G. A pipe 2 passing through masonry is held in place by an elastic ring 4 of rubber or plastics material which, by the aid of end rings 5 and screws 6 is spread radially into contact with a masonry protecting tube 1. The ring may be disposed at the house end of the tube 1, the other end being supported either by a similar ring or by a winding 8 of twisted fibre.