baber/WOPTO huggingface dataset:
Patent GB-1149465-A (GB)
Title: Process for preparing polypropylene without subsequent removal of catalyst residue
Inventor: BACSKAI ROBERT
IPC: C08F6/02
Filed: 1967-09-20
Abstract: 1,149,465. Polypropylene. CHEVRON RESEARCH CO. 20 Sept., 1967 [26 Sept., 1966], No. 42891/67. Heading C3P. In the polymerization of propylene using a catalyst comprising an organo-aluminium compound and a titanium compound in the presence of a hydrocarbon solvent, the polymerization is terminated by neutralizing the catalyst with an alkanol solution of an alkali metal alkoxide, the alkanol and alkoxide each containing from 1 to 6 carbon atoms, and the hydrocarbon solvent and alkanol are removed to leave polypropylene which is insoluble in boiling heptane and contains the neutralized catalyst. The catalyst is preferably a mixture of a dialkylaluminium chloride and titanium trichloride. The alkoxide and alkanol each preferably contain 1 to 3 carbon atoms and may be sodium or potassium methoxide and methanol; and the concentration of the alkanol solution of alkali metal alkoxide is preferably in the range of from 0À1 to 3 molar. In the examples, propylene is polymerized using a catalyst system comprising diethylaluminium chloride and titanium trichloride AA (3:1 mol ratio of TiCl 3  and AlCl 3 ), and termination is effected using either a sodium methoxide-methanol solution, or a sodium propoxide-propanol solution. The pentane, excess propylene and alkanol are removed by evaporation.
Patent GB-1507479-A (GB)
Title: Nuclear reactor apparatus
IPC: G21C13/00
Filed: 1975-10-20
Abstract: 1507479 Nuclear reactors WESTINGHOUSE ELECTRIC CORP 20 Oct 1975 [31 Oct 1974] 42909/75 Heading B6C  A nuclear reactor (e.g. a pressurized water reactor) station has a compartmented base 55 which includes an upper generally-horizontal plate 57, a lower generally-horizontal plate 59 and vertical walls 61, 67, the walls and plates forming a rigid structural unit with chambers being defined by the walls and plates; the chambers receive auxiliary components and materials needed for reactor operation. One chamber is a refuelling coolant storage tank, base 55 including means connected to the tank and reactor 23 for circulating coolant to the reactor in the event of a loss-of-coolant accident.
Patent GB-1021998-A (GB)
Title: Improvements in or relating to enameling frit compositions
IPC: C03C8/04
Filed: 1964-10-22
Abstract: A titania opacified borosilicate frit composition for application to heated metal surfaces by dry process enamelling consists essentially of, in weight per cent: <FORM:1021998/C1/1> 0-3 MgO, the titania being present in the form of extremely minute nuclei, produced by a partial reheating of the frit, and capable of growing into larger titania crystals during the enamelling process, the total of Na2O, K2O and Li2O being from 10-30% and the total of B2O3, P2O5 and F2 being from 10-30% in combination with up to 2% by weight of an oxide selected from the group V2O5, MoO3 and PbO.  Preferably the total concentration of ZnO, A12O3 and MgO is from 1 to 3%. A frit such as one of the above is applied through a screen to a ferrous surface heated to a temperature of from 1400 DEG  to 1800 DEG  F. and fused thereon to produce an opaque porcelain enamel.  Silica may be replaced by not more than 5% of ZrO2.
Patent GB-906223-A (GB)
Title: Method and apparatus for sealing containers
IPC: B67B3/18
Filed: 1960-12-15
Abstract: 906,223. Applying bottles &c. closures. ALUMININUM CO. OF AMERICA. Dec. 15, 1960 [Dec. 16, 1959], No. 43175/60. Classes 125 (2) and 125 (3).  The method of applying a closure cap 21 with a compressible liner 24 to a container neck 12 described in Specification 670,072 is modified by providing the pressing die with a shoulder 32 which first engages the bulge 23 to initially bend the overhanging portion of the cap towards the side sealing surface 13, the compressing of the cap on to the surface 13 being completed by a tapered surface 33. The taper 33 allows for variations in the size of the surface 13 and the thickness of the parts 21, 24. The lower position of the skirt 22 of the cap 21 is engaged with closure-retaining formations such as screw-threads 14 by a spinning disc. The pressure head is reciprocated by a vertical stroke apparatus similar to that described in Specification 234,352.
Patent GB-967666-A (GB)
Title: Traffic monitoring system
IPC: G08G1/01
Filed: 1960-12-15
Abstract: 967, 666. Signalling passage of vehicles. LABORATORY FOR ELECTRONICS Inc. Dec. 15, 1960 [Dec. 24, 1959], No. 43232/60. Drawings to Specification. Heading G4Q. An electrical signal representative of a characteristic (such as volume, speed, or density) of the traffic flow at a point on a highway is stored and compared after a delay with a corresponding signal from a second point on the highway downstream in the traffic flow from the first point. The delay period is equal to the expected time for the traffic to travel from the first point to the second and may be either preset or controlled by a device measuring the average traffic speed at the first point. An alarm may be given if the two signals differ by more than a predetermined amount. In one embodiment described the signals from the first point are stored in a series of capacitors and are read out in sequence under the control of a stepping switch (such as a multi-anode tube or a wiper switch) driven by a pulse generator at a rate dependent upon the traffic speed at the first point. An alternative form of store comprises a loop of tape, the length of tape between the recording head and the playback head being varied in accordance with the traffic speed. Specifications 816,834, 929, 631 and 949,382 are referred to.
Patent GB-865300-A (GB)
Title: Improvements in and relating to record media
IPC: G11B5/74
Filed: 1959-12-22
Abstract: 865,300. Selective record apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1959 [Dec. 22, 1958], No. 43532/59. Class 40 (2). [Also in Group XIX] A record member, preferably magnetic and for a random access store, comprises a steel strip 10 to which a pliable record material is secured along a longitudinal line or lines in such manner as to allow the record medium to separate from the strip to make intimate contact with a transducing head. Fig. 1 shows strips 11, 12 of record material secured to the steel strip 10; air flow in the direction of the arrows 13a separates the steel and record strips. The steel strip may be of channel section as shown in Fig. 2 with holes 15d in the web through which air is directed. The record members are stacked in bins and are retained by interengaging ribs and notches 22a, 20a (Fig. 5), each member being distinguished by a notch 20b in the upper edge in one out of two positions and a tab 20c on the lower surface in one out of eight positions. A finger 23 is actuated to disengage from rib 22a only that member having tab 20c in the appropriate position and to engage notch 20b with a finger 24 which together with finger 23 then draws the record member into feed rollers for a transducer.
Patent GB-965667-A (GB)
Title: Improvements in or relating to vehicle suspension systems
IPC: B60G21/00
Filed: 1960-12-20
Abstract: 965,667. Road vehicle suspensions. A. R. MAROT, and PNEUMATIQUES CAOUTCHOUC MANUFACTURE & PLASTIQUES KLEBER COLOMBES. Dec. 20, 1960 [Dec. 21, 1959], No. 43735/60. Heading B7D. A vehicle suspension comprises a beam 6, upon which the wheels 1, 2 are mounted by bearing rods 4 1 , 5 1 ; 4 2  5 2 ; the bearing rods 41 and 4 2  being pivoted to the beam 6 and the bearing rods 5 1 , 5 2  being pivoted to levers 71 and 7 2  pivoted to the beam 6 and to the vehicle body at 8 1  and 8 2 . Springs 11 1 , 11 2  and hydraulic shock dampers 12 are fitted between the beam 6 and extensions of the levers 5 1  and 5 2 . In a modification, Fig. 3 the upper levers 5 1  and 5 2  are connected to levers 14 1  and 14 2  pivoted to the beam 6 at 16 1  and 16 2  and to the vehicle body at 13 1  and 13 2 . A pair of levers 17 1  pivoted together at 181 are pivoted to the levers 14 1 , 14 2  at 13 1  13 2  and at 19 1 , 19 2  to torsion bars 201, 20 2  connected to the beam 6.
Patent GB-1011055-A (GB)
Title: Improved engine fuel control system
Inventor: BLACKABY BENJAMIN EDWARD
IPC: H02P23/00
Filed: 1960-12-22
Abstract: 1,011,055. Automatic control systems. DE HAVILLAND AIRCRAFT CO. Ltd. Nov. 22, 1961 [Dec. 22, 1960], No. 44017/60. Heading G3R. A fuel control system for an engine E driving a variable power-consuming device such as the rotor R of a helicopter comprises a computer C which produces a control signal as a function of engine speed, speed setting and changes in speed setting, a valve V responsive to the signal to control the fuel supplied to the engine, and power consumption setting means, e.g. a lever CL for varying the collective pitch of the helicopter blades RB, to vary the setting of the power consumption of the engine, means being provided to modify the control signal by an amount which is a function of the rate of change of the power consumption setting. As shown, the engine E comprises a free turbine FT and a compressor turbine CT supplied with fuel through the valve V controlled by a motor M. A speed lever SL, for setting the speed of the engine, is mechanically coupled to a rotary inductive pick-off LP co-operating with a similar pickoff MP linked to the motor M. The computer C receives input signals from LP and MP and from tacho-generators MG, CG, and TG driven respectively by the motor M, the compressor turbine CT and the face of turbine FT; it also receives a signal from a thermocouple TC exposed to inter-turbine temperature. The arrangement is such that the computer produces an output signal controlling the motor M, and hence the fuel supply, to keep the engine speed constant. To obviate response delay, caused by inertia in the system, when the powerconsumption requirements are varied by altering the pitch of the rotor blades, the output signal from the computer is modified by an amount which is a function of the rate of change of the setting of the lever CL. This is achieved by coupling the lever CL to the movable arm 10 of a potential divider 12; a change of signal from the potential divider is differentiated by a capacitor 14 resulting in a rate signal which is applied to a control winding 16 in the governor circuit of the computer C. The signal in the winding 16 results in an immediate increase or decrease in the fuel flow, and the rate signal thus anticipates any change of fuel flow called for by the computer. A resistor (shown dotted) may be connected across the capacitor 14 to add a proportional term signal to the system to compensate for any droop in the power/speed characteristic of the engine. A rotary inductive pick-off and rectifier system may replace the potentiometer 12. Specification 962,801 is referred to.
Patent GB-1450691-A (GB)
Title: Prostaglandin analogues
IPC: C07C405/00
Filed: 1973-09-20
Abstract: 1450691 Compositions containing prostaglandins ONO PHARMACEUTICAL CO Ltd 20 Sept 1973 [21 Sept 1972 23 March 1973] 44235/73 Heading A5B [Also in Divisions C2 and C3] Pharmaceutical compositions, suitable for oral rectal, vaginal or parenteral administration contain prostaglandins of the formula VII and XX wherein (i) R 1  is a radical of the formula -C(R 4 )R 5 -CH(R 6 )-CH(R 7 )-CHR 8 R 9  wherein R 4  and R 5  each are H or C 1-4  alkyl, R 6  is H or C 1-3  alkyl, R 7  is H, or methyl or ethyl, R 8  and R 9  each are H or methyl, not more than three of the symbols R 4 , R 5 , R 6 , R 7  or R 3  simultaneously representing alkyl substitutents or R 1  is methyl ethyl, propyl or butyl carrying a cyclohexyl or cyclopentyl radical, R 2  is H or C 1-4  alkyl, R 3  is H and A is a group of the formula with the proviso that when A represents a grouping of the formula II in compounds of the formula VII and R 2  is H-R 1  is other than the n-pentyl radical, or (ii) R 1  is a radical of the formula -C(R 4 )R 5 -CH(R 6 )-CH(R 7 )-CHR 8 R 9  wherein R 4 , R 5 , R 6 , R 7 , R 8  and R 9  are as defined above with the proviso that when R 9  is methyl one, two or three of the symbols R 4 , R 5 , R 6 , R 7  and R 8  represents an alkyl substituent, or R 1  is methyl ethyl, propyl or butyl carrying a cyclohexyl or cyclopentyl substituent; R 2  is H or C 1-4  alkyl and R 3  is C 1-4  alkyl or esters thereof, or cyclodextrin clathrates of such acids, esters and alcohols, or non-toxic salts of such acids in association with pharmaceutical carriers or coatings. The compounds posses prostaglandin-like pharmacological activities.
Patent GB-1008713-A (GB)
Title: Improvements in nuclear reactor heat generating and utilising plant
Inventor: TAYLOR ANTHONY JAMES
IPC: F22B1/18
Filed: 1960-12-23
Abstract: 1,008,713. Nuclear power plant. BABCOCK & WILCOX Ltd. Dec. 20, 1961 [Dec. 23, 1960], No. 44273/60. Addition to 902,182. Drawings to Specification. Heading G6C. In a nuclear power plant of the type described in Specification 1,008,712, the heat exchanger disclosed therein is provided with a central duct, through the exchange elements. The flow of reactor coolant gases may be by-passed, from the exchanger elements, through the duct by a valve which controls the upper openings of by-pass pipes lying within the duct. The by-pass pipes are secured in horizontal baffle plates through sliding seals which permit differential thermal expansion. Specification 865,425 also is referred to.
Patent GB-950132-A (GB)
Title: Smokers' ash receptacles
IPC: B60N3/08
Filed: 1961-12-12
Abstract: 950,132. Smokers' ashtrays. R. HAMPTON. Dec. 4, 1962 [Dec. 12, 1961], No. 44363/61. Heading A2M. A smoker's ashtray has a hinged, pivoted, or slidable lid or member which in the open position can support a cigarette in a V-shaped gap therein. As shown, the ashtray comprises a bowl 10 fixed to a rim part 12 by a bayonet connection 11, the part 12 having suction pads 13 for mounting on a motor car dash board. The lid 14 is provided with a V-shaped gap 17, is a frictional fit within the part 12 when closed, is pivoted about an axis 15 and held in the open position by a weight 16. In a second embodiment (Figs. 3 and 4, not shown) the member with the V-shaped gap is hinged adjacent the forward edge of a rectangular receptacle and is held in the upward position by friction. Alternatively, the member may be held open by springs and held closed by a catch or it may be slidably mounted in the front face of the receptacle.
Patent GB-1464639-A (GB)
Title: Mould assembly for use in packaging machine
IPC: B29C49/06
Filed: 1974-10-14
Abstract: 1464639 Moulding hollow articles TAKEDA YAKUHIN KOGYO KK 14 Oct 1974 [19 Oct 1973 20 June 1974] 44440/74 Heading B5A [Also in Division B8] Apparatus for forming blisters of substantially uniform thickness in a thermoplastic resin film, e.g. of p.v.c. for packing purposes in which blisters are formed in two stages, comprises a preforming rotary drum PD by which preformed blisters 10c are vacuum formed in a web 10, and a rotary finishing drum FD by which the blisters are vacuum formed to final shape 10f. The drum PD is heated by means 50 to soften the web at areas 10b and has mould cavities on its periphery of the same area but of less depth than those in the finishing drum. The latter is associated with a spaced heater whereby the preformed web is heated uniformly before it is finally shaped. The base of each cavity in the preforming drum may be as in Fig. 4, in which case a radiant heater is used and the projection 52b cools the centre of the preformed blister. Instead of two drums, blocks PB and FB are used, each provided with mould cavities connected to vent passages 62, 62<SP>1</SP> or to a vacuum source. The blocks are movable towards and away from plates 30, 31 supplied with compressed air through inlets 30b, 30b<SP>1</SP> and the web is driven intermittently. Heaters 63a, 63<SP>1</SP>a are provided and the block FB may have cooling means. After forming the blisters the web is conveyed to packaging means (see Division B8).
Patent GB-1357832-A (GB)
Title: Electromagnetic switching device
IPC: H01H51/08
Filed: 1972-09-26
Abstract: 1357832 Electromagnetic relays A F KAY 26 Sept 1972 [27 Sept 1971] 44486/72 Heading H1N An electromagnetic switch has a plunger armature 18 with a cam 23 mounted for rotation on the end of the armature 18 extending beyond the end of the coil 16 and having ratchet teeth co-operating with detents 27, 28 which ensure that the cam rotates in one direction only on reciprocation of the armature 18. The detent 28 is a spring carrying a contact 30 which cooperates with a fixed contact 31. The notches 25, 26 between the ratchet teeth are alternately deep and shallow so that contacts 30, 31 are closed when the spring 28 is engaged in a shallow notch 26. In Figs. 4 and 5 a hexagonal cam 35 acts on a contact spring 28a and has teeth 36 on its face co-operating with spring arms 38, (40) acting as detents. A spring arm 39 (33) may act as armature back stop.
Patent GB-1043227-A (GB)
Title: Vehicle luggage holder
IPC: B60R9/045
Filed: 1961-12-14
Abstract: 1,043,227. Roof racks. F. PARKINS. Dec. 11, 1962 [Dec. 14, 1961], No. 44711/61. Heading B7J. A roof rack for a car 1, Figs. 1 and 2, comprises a base 2 in the form of a metal angle frame 8 supporting a sheet of plywood 9, side members 15 and end members 21, the base being reinforced underneath by transverse slats as decribed with reference to Figs. 3 and 4 (not shown) and being mountable on the roof by universally adjustable legs 47 carrying rubber pads, the base frame also having hinged thereto arch-like side frames 24, 25, 24, 25 which when erected as shown in Fig. 1, serve to support a cover 5 for the luggage. In the erected state the frames are connected by transverse rods 31 having spigots at their ends to engage holes in the side frames and one spigot on each rod 31 is resiliently mounted thereon. In the collapsed state of the side-frames, Fig. 2, the side members 15 are connected by a transverse rod 32 and the rack and cover 5 contained in a bag together with the rods 31, may be covered with an additional cover 7. Both covers 5 and 7 are provided with press clips to engage projecting pins on the frame 8. The rack is secured to the roof gutters 42 by telescopic devices 4 as described with reference to Fig. 5 (not shown).
Patent GB-1166664-A (GB)
Title: Anticorrosive Hot-Dip Strippable Coatings
IPC: B05D1/32
Filed: 1966-10-07
Abstract: 1,166,664. Polyethylene compositions. POLITECHNIKA WARSZAWSKA. 7 Oct., 1966 [7 Oct., 1965], No. 44982/66. Heading C3P. Anti-corrosive hot-dip strippable coatings may be formed from compositions comprising polyethylene and an ester or polyester of a dicarboxylic acid as plasticizer in a weight ratio of polyethylene to ester of 1:19 to 1:1. The compositions may also contain waxes, ceresin, antioxidants, fatty acid salts, corrosion inhibitors, natural and synthetic polymers, resins, stabilizers, dyes, fillers and pigments. The compositions may be formed by mixing some of the components or parts of the components at a higher temperature and adding the remaining components or parts of components at below 80‹ C. An example describes a mixture of polyethylene and octyl phthalate.
Patent GB-1067167-A (GB)
Title: Improvements to transmission devices
IPC: H01P1/213
Filed: 1963-11-14
Abstract: 1,067,167. Waveguide hybrid junctions COMPAGNIE FRANCAISE THOMSONHOUSTON-HOTCHKISS BRANDT. Nov. 14, 1963 [Nov. 20, 1962], No. 45035/63. Heading H1W. [Also in Division H4] A diplexing circuit uses hybrid circuits consisting of four coaxial line arms coupled to a common section of waveguide. The rectangular waveguide 31, Fig. 3, contains a T-junction 32, 34, 35 symmetrically disposed between the broad walls, and a further coaxial terminal 33 disposed either in the end wall or (as shown) in the broad wall of the waveguide axially displaced from the T-junction. If the terminals are correctly matched and the waveguide is operated in the H 01  mode, input energy from terminal 32 is divided in phase between symmetrical terminals 34, 35 and none is coupled to terminal 33. Two such waveguides (G 1 , G 2 , Fig. 1) are provided with respective symmetrical terminals (2, 4) and (2<SP>1</SP>, 4<SP>1</SP>) interconnected by coaxial lines (Co 1, Co 2) of equal length, whereby a signal (e.g. a television vision signal) fed to terminal (1) is wholly coupled to terminal (1<SP>1</SP>). A further signal of a different frequency (e.g. a television sound signal) fed to terminal (3<SP>1</SP>) divides equally in antiphase between the lines (Co 1, Co 2) and is reflected back to waveguide (G 2 ) by rejection filters (Crs 1, Crs 2). Since the filters are staggered by one quarter-wavelength from the waveguide (G 2 ), the reflected signals are in phase at the T-junction (5<SP>1</SP>) and are coupled to the terminal (1<SP>1</SP>). The latter may be connected to an aerial feeder. Any portion of the signal not reflected by the filters is dissipated in a load (8). The coaxial arms also contain band-pass filters (Cfi 1, Cfi 2) for the signal fed to the terminal (1).
Patent GB-1000923-A (GB)
Title: Improvements in or relating to electric current conducting devices
IPC: F21V21/34
Filed: 1963-11-15
Abstract: 1,000,923. Power-distribution tracks. LIGHTOLIER Inc. Nov. 15, 1963 [May 21, 1963], No. 45145/63. Drawings to Specification. Heading H2E. The entire subject-matter of this Specification is contained within Specification 1,000,930 but the claims are directed to the conductor support for mounting within the channel-shaped member of the power-distribution track. Specifications 1,000,924, 1,000,925, 1,000,926, 1,000,927, 1,000,928 and 1,000,929 also are referred to.
Patent GB-1285838-A (GB)
Title: Improvements in switching devices in fuel injection systems for internal combustion engines
Inventor: FORD ERIC HAROLD
IPC: F02B1/04
Filed: 1970-09-22
Abstract: 1285838 Photo-electric control of fuel injection LUMENITION Ltd 22 Sept 1970 45148/70 Addition to 1244630 Heading G1A In a transistorized fuel injection system according to Claim 1 of the parent means are provided for achieving a desired reduced switching speed of the solenoid energizing switching means. Iron cored inductors L, L1, in the base circuit of transistors 66, 66' controlling the injection solenoids 50, 50' slow the switching speed and thus protect the transistors from switching pulses fed back from the solenoids on switch-off. The photo-darlington pair 48, 49 may be replaced by a photo-darlington triplet, and a Zener diode Z may be connected in parallel with the source 46, 46' and the photo-darlington arrangement.
Patent GB-1520421-A (GB)
Title: Organosilicon compounds
IPC: C07F7/08
Filed: 1975-10-09
Abstract: 1520421 Polyoxyethylene-silalkylsilanes DOW CORNING Ltd 9 Oct 1975 [19 Oct 1974] 45364/74 Heading C3S Novel silanes wherein each R is CH3- C2H5- C3H7- or CF3C2H4-, at least 50% of the radicals R being CH3-, R<1> is a C1-6 alkyl radical, R<11> is a C2-6 divalent aliphatic radical having at least two carbon atoms directly between Q and the Si atom, X is H, R<111>, -COR<111> or -CO-OR<111>, R<111> is a C1-5 alkyl radical, a is 1 or 2, b is 2 or 3 and c is 3-12, may be prepared by addition of the hydride to the polyethylene glycol ether YO(C2H4O)cX, wherein Y is a C2-6 terminally olefinically unsaturated aliphatic hydrocarbon radical, in the presence of a catalyst for the reaction. In the Examples the silane is added to the alkyl polyethers and Uses.-Antifoam agents.