baber/WOPTO huggingface dataset:
Patent GB-873945-A (GB)
Title: Method for polymerizing monoolefinic compounds
IPC: C08F10/00
Filed: 1959-12-30
Abstract: Mono-olefins are polymerized in the liquid phase, in the presence of a catalyst prepared by adding an organo-metallic complex compound consisting of a metal of Group II(a) (except beryllium and magnesium) and an organometallic compound of a metal of Group II(b) (except mercury) to a halide or oxyhalide of a metal selected from Group IV(a), V(a), VI(a) and VII(a) of the Mendeleeff Periodic Table.  The liquid phase may be a solvent or diluent or the monomer liquefied. The mono-olefin may be ethylene, propylene, or styrene.  The organo-metallic complex may be Ba Zn(C2H5)4, Ca Zn(C2H5)4, Ca Cd(C2H5)4, Ba Zn(C3H7)4, Ba Zn(C6H5)4, Ca Zn(C3H7)4, Sr Zn(C2H5)4, Ca Zn(CH3)4, or Ca Zn(C6H5)4.  The preferred halides and oxyhalides are of titanium, zirconium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or manganese, and especially titanium tetrahalide, trichloride or dichloride, or vanadium oxychloride.  The solvent or diluent may be n-hexane, n-heptane, benzene, toluene or xylene.  Specifications 799,392 and 810,023 are referred to.ALSO:Organo-metallic complexes of the formula MaMbR4 where Ma is a metal of Group IIa of the Mendeleeff Periodic Table except beryllium and magnesium, Mb is a metal of Group IIb except mercury, and R is an alkyl or aryl radical, are made by adding a Group IIa metal to an organometallic compound of the Group IIb metal.  In an example barium zinc tetraethyl (BaZn(C2H5)4) is made by adding small pieces of barium to a solution of diethyl zinc in benzene.  Other complexes such as CaZn(C2H5)4, CaCd(C2H5)4, BaZn(C6H5)4, and CaZn(C3H7)4 may be made by similar methods.  The organo-metallic complex may be used as a component of a polymerization catalyst.
Patent GB-1060665-A (GB)
Title: Improvements in methods of fabricating footwear
IPC: A43D8/04
Filed: 1963-11-11
Abstract: 1,060,665. Boots &c. J. G. MITCHELL and W. G. MITCHELL. Nov. 11, 1963 [Nov. 13, 1962], No. 44397/63. Heading A3B. Slippers are made by forming foot openings in a first strip of plastics material, bringing a second strip of plastics material into face to face contact with the first strip, heat sealing the strips together along a seam which generally conforms to the outline of a human foot and separating the completed slipper from the strips. The first strip 40 is advanced incrementally through a punch 42 which punches foot openings 39 and is then brought into contact with a second strip 48 and both strips pass through a sealing and cutting station 49. On activation of a piston and cylinder heat sealing dies 66, 67 seal the material and when the dies 66, 67 can move no further springs 55 compress to allow cutters 56 to sever the completed slippers from the strip. Spring loaded plates (76, 77) prevent the slippers or the strips from sticking to the sealing dies 66, 67. Incremental movement is imparted to the strips by the pairs of rollers 58, 59 and 60, 61. The plastics material may be any heat sealable elastomer and may or may not be cellular. Preferably a flexible polyurethane foam is used. The two strips may be separate strips or a double width single strip may be folded in half to produce the same result.
Patent GB-1129303-A (GB)
Title: Automatic weapon
IPC: F41A5/26
Filed: 1965-10-20
Abstract: 1,129,303. Automatic firearms. OERLIKONBUHRLE HOLDING A.G. 20 Oct., 1965 [20 Oct., 1964], No. 44431/65. Heading F3C. An automatic firearm is provided with an exchangeable barrel 10 locked in a receiver 14 as by a bayonet joint 12 and a pin 13 and the connection between the gas-bleed passage in the barrel and a drillway in the receiver 14 contains an axially perforated obturating piston 19. In use the obturating piston is urged against the outer surface of a barrel insert 21 by expanding gas in a part 28 of the drilling in the receiver 14 downstream of the piston 19. The drillway is further provided with a regulating needle 30. In a modification (Fig. 4, not shown) a hard metal obturating member is provided between the obturating piston and a regulating needle of a different type from that shown in Fig. 1.
Patent GB-1402255-A (GB)
Title: Medical or surgical devices of the kind having an inflatable balloon
IPC: A61F2/958
Filed: 1971-09-24
Abstract: 1402255 Tracheal tubes: balloon catheters SMITHS INDUSTRIES LTD 22 Sept 1972 [24 Sept 1971] 44638/71 Heading A5R A medical or surgical device for insertion into the body has an inflatable balloon adapted to seal against the body the balloon having a convoluted external surface when inflated so as to contact the body in at least three discrete positions therein. An endotracheal tube 1 has adjacent its distal end a balloon or cuff 4 having an undulating surface providing crests 5 which seal against the trachea, the cuff being inflated by air supplied through a line 9 sealed into the wall 8 of the tube, and a passageway 7 extending within the wall 8 and communicating with the cuff through opening 6. A pilot balloon 12 in the air line 9 serves as a check on cuff inflation which is maintained by inserting plug 11 in the air supply coupling 10. In a modification a curved trachectomy tube has a cuff formed with two distinct crests and a rounded shoulder which merges into a conical distal portion. In a further modification three crests are provided and the shoulder has a cylindrical form. The cuffs may be formed of plasticised polyvinylchloride by blow moulding or by moulding on a mandrel. The tube may include a strip of radio-opaque material and a plasticiser whereby slight softening of the tube occurs at body temperature.
Patent GB-1185935-A (GB)
Title: Process for the Production of Polyamide Foams
Inventor: GILCH HEINRICH
IPC: C08J9/04
Filed: 1968-09-20
Abstract: 1,185,935. Polyamide foams made by activated ionic polymerization. FARBENFABRIKEN BAYER A.G. 20 Sept., 1968 [20 Oct., 1967], No. 44797/68. Headings C3C and C3R. Polyamide foams are produced by activated ionic polymerization of a mixture of a lactam, an activator and a boric catalyst and at least 0À005% by wt. of an organo-siloxane oxyalkylene block polymer as pore size regulator, and the mixture is foamed using a blowing agent or an excess of activator when an isocyanate is used as activator. The lactam may be caprolactam, the activator may be hexamethylene diisocyanate and the catalyst may be sodium formate or borohydride. The block copolymer may be of formula where R and R<SP>1</SP> are C 1-8  hydrocarbon radicals which may be substituted, R<SP>11</SP> is H or R as above; p, q and r are 2-15, n is 2-4 and z is 10-50.
Patent GB-1221551-A (GB)
Title: Improvements in or relating to an electromechanical oscillator
Inventor: KRATOCHVIL JIRI
IPC: G01L1/10
Filed: 1968-09-20
Abstract: 1,221,551. Transistor oscillator circuits. CESKE VYSOKE UCENI TECHNICKE STAVEBNI USTAV. 20 Sept., 1968 [21 Sept., 1967], No. 44827/68. Heading H3T. [Also in Division G1] An electromechanical oscillator comprises an exciter and a mechanical oscillatory system having an electromechanical converter and a two-wire line connecting the converter in parallel with the exciter, with the exciter comprising at least one non-linear limiting circuit and at least one differentiating circuit, these being connected in cascade to form part of a closed feedback loop. In Fig. 2 the electromechanical converter 2, when oscillating, sends signals along line 3 to the preamplifier of transistors T2, T1 and to the Schmitt trigger of transistors T3, T4. The output can either be square wave or if required as a sine wave can be passed through transistor T7 and filter circuit 51-55. A feedback closed loop is completed via transistors T5, T6 of a differentiating circuit 12 having circuit values such that its output is synchronous with the output of 2. If the circuit is not self-starting, switch 4 when switched on, pulses line 3 to start the oscillations.
Patent GB-1247732-A (GB)
Title: Electro-chemical deionization
Inventor: EVANS SHELDON
IPC: C02F1/469
Filed: 1968-09-20
Abstract: 1,247,732. Carbon electrode. NORTH AMERICAN ROCKWELL CORP. 20 Sept., 1968 [22 Sept., 1967], No. 44899/68. Heading C1A. [Also in Division C7] An electrode is formed of a mixture of weak ion exchange resin and electrically conductive carbon, e.g. graphite. The electrode may additionally comprise a binder. Anions and cations may be removed separately or simultaneously from aqueous solutions containing them by forming electrodes of (1) electrically conductive carbon and a weak base ion exchange resin and (ii) electrically conductive carbon and a weak acid exchange resin, placing the electrodes singly or together in the aqueous solution and applying D.C. potential to (i) to make it positive and to (ii) to make it negative. The weak exchange resin is thus electrochemically dissociated and the anions in the solution combine with the resin in the positively charged electrode and the cations in the solution combine with the resin in the negatively charged electrode. The anions removed may be chloride, sulphate, nitrate or phosphate and the cations may be Na<SP>+</SP>, Ca<SP>++</SP> and Mg<SP>++</SP>. The aqueous solution treated may be saline water. The resin may be regenerated by immersing the electrodes in an aqueous medium and reversing the polarity of the potential applied to the particular electrode.
Patent GB-1403580-A (GB)
Title: Lifting apparatus
Inventor: JOHANSSON A
IPC: B66F7/22
Filed: 1972-09-29
Abstract: 1403580 Vehicle lift T JOHANSSON 29 Sept 1972 [15 Oct 1971] 44990/72 Heading B8H A vehicle lift comprises a support frame with a base portion 12 and an upwardly inclined portion 14 and a lifting frame 30 with a first pair of arms 32, 34 supported for sliding movement along the inclined portion 14 and a second pair of arms 36, 38 pivoted intermediate their ends at 40, 42 to one end of the arms 32, 34. A single hydraulic actuator 74 is mounted between a transverse beam 20 secured to the base portion 12 and a transverse beam 76 secured between the first pair of arms 32, 34 to effect movement thereof along the inclined portion. A pair of vehicle support pads 52, 54 are mounted to slide longitudinal of one end of the second pair of arms 36, 38 and a further pair of pads 56, 58 are fixed to the first pair of arms 32, 34. An extension 46, 50 is telescopically mounted at the other end of the arms 36, 38 to abut, in their extended position, respective rollers 66 mounted on a cross member 64 secured to the inclined portion. In operation with the extensions 46, 50 retracted the lifting arms and hence a vehicle are raised with a horizontal attitude on actuation of the actuator. When however the extensions are extended they abut the rollers 66 on actuation of the actuator to cause the arms 36, 38 to pivot about the arms 32, 34 and so tilt the vehicle as it is raised. A pair of bracing bars 88, 90 secured to the inclined portion 14 counteract the bending moment of the portion 14 when a vehicle is lifted. The actuator may alternatively be pneumatically or screw-operated.
Patent GB-1310786-A (GB)
Title: Fuel supply control device
IPC: F01N3/36
Filed: 1971-09-28
Abstract: 1310786 Controlling liquid fuel supply NISSAN MOTOR CO Ltd 28 Sept 1971 [17 Nov 1970J 45092/71 Heading F1B Liquid fuel supply control device comprises a fuel tank 10, a pump 12 which discharges through a flow restrictor 16 into a pressure chamber 22 and two nozzles 18 and 20 connected in parallel to the pressure chamber. Nozzle 18 supplies fuel to a carburetter or exhaust gas after-burner and fuel discharged from nozzle 20 drains back to the tank. A pivotally mounted flap valve 28 is influenced by an electrically energized coil 32 to move towards or away from the nozzle 20, the flow through nozzle 18 depending on the degree to which the valve 28 obstructs the nozzle 20. The amount of electrical energy fed to coil 32 corresponds to accelerator pedal position, intake manifold vacuum or engine speed.
Patent GB-1318751-A (GB)
Title: System for simultaneous display of ecg and heart rate
IPC: A61B5/0452
Filed: 1970-09-22
Abstract: 1318751 Electro-medical apparatus HEWLETT-PACKARD CO 22 Sept 1970 [22 Sept 1969] 45109/70 Heading G1N [ Also in Division H4] A repetitive analogue signal, specifically a real time electro-cardiographic signal (E. C. G.) and the recurrence rate of such signal (heart beat rate) together with adjustable upper and lower limit indices for the latter are displayed on a single beam cathode-ray tube. The E. C. G. waveform is displayed by supplying the E. C. G input signal at terminal 23 to the U (upper) input of a vertical chopper 19 which is switched by the U output of a 2KHZ multi-vibrator 21 to pass the signal to the vertical yoke of the display tube 11 the beam of which is, deflected in the horizontal direction by the output of a ramp generator 27 synchronized by a circuit 29 under the control of a signal derived from the R wave component of the E. C. G. signal and supplied to the horizontal yoke via the U input of a horizontal chopper 17 also switched by the U output of multi-vibrator 21. Ramp generator 27 produced a sweep rate of between 2 and 4 seconds for a 100 mm sweep so that the E. C. G. waveform which is displayed on the upper portion of the screen (see Fig 2) is interrupted at the rate (2KHZ) of multi-vibrator 21 when the latter is producing a significant signal on its L (=lower) output. On such change-over of multi-vibrator 21 a pulse is produced at output C which, via a blanking pulse generator 31, triggers a ramp generator 33 (producing a sweep rate of about 140 Á sec for a 100 mm sweep) the output of which is supplied via the L input of chopper 17, together with the output of a ramp generator 35 supplied to the L input of chopper 19 to produce one line of a line master on the lower position of the screen during each L state of multi-vibrator 21. This master is then intensity modulated by the output of a comparator 49 supplied with the output of ramp generator 33 and with a "tachometer" signal (i.e. a D. C. voltage the magnitude of which varies with variations in the heart beat rate) from averaging filter 47, to produce a horizontal bargraph the horizontal length of which is a function of the heart beat rate. Upper and lower rate limit indices determined by potentiometers 65, 63 and comparators 61, 59 also supplied with the output of ramp generator 33 are produced as vertical bars by and further comparators 73, 75 supplied with the output of filter 47 and from potentiometer 63 and 65 respectively control the production of visible warnings (lamps 79, 83) if such rate limits are exceeded. Reference has been directed by the Comptroller to Specification 1153891 (For Figures see next page)
Patent GB-951349-A (GB)
Title: Anabolic substance and process for its production
IPC: A23K1/16
Filed: 1961-12-15
Abstract: The invention comprises an anabolic and estrogenic compound having the empirical formula C18 H22 O5, an optical rotation in methanol of [a ]25 DEG  D = -109.5 DEG  and a m.p. of 164-165 DEG C. and specified solubility, u.v. and infra-red properties and a process for the preparation thereof by cultivating the organism Gibberella zeae NRRL 2830 in a nutrient medium containing a grain selected from the group consisting of corn, wheat, barley, and oats, under aerobic conditions and recovering said anabolic and estrogenic compound from the resulting fermentation medium.  Compositions containing said compound are administered orally or parenterally.  A suitable injection suspension medium is peanut oil.
Patent GB-618746-A (GB)
Title: Improvements relating to sliding roofs for vehicles
IPC: B60J7/053
Filed: 1946-11-28
Abstract: 618,746. Fasteners for vehicle sliding roofs. MOBBS, H., and SMITH, G. H. Nov. 28, 1946, No. 35346. [Class 44] [Also in Group XXXII] The sliding roof panel 10 of a vehicle of the type described in Specifications 563,736, [Group XXXII], and 580,284, which in the retracted or open condition is disposed with its rear part beneath the internal plate 40 of the fixed roof part 11, consists of a frame structure, having side members connected by. transverse rails at the back and front, and preferably having a longitudinal central member, the whole being covered by a sheet of metal or other material. The panel has pairs of rollers 17, 18 and 16 mounted at each end and intermediately thereof respectively, which run on angle iron rails 15 rigid with the fixed part of the roof, these angle irons 15 having fixed to them, externally thereof, metal gutters 45, the faces of which guide laterally balls 43 in side extensions 42 of the panel 10. When the panel 10 is almost fully extended the front pair of rollers 17 come above the recess formed by a transverse channel member 36 secured to the top of the windscreen 14 and the rear part of the panel 39 comes below an indentation in the internal plate 40 so that the panel 10 is able to rock on the central pair of rollers 16 in such a way that its front edge 34 bears against the top of the windscreen and its top surface lies flush with the fixed roof part 11. The panel 10 is locked in this position by a handle 22 which operates intercoupled front and rear discs 23 and 25 linked to transverse struts 30 and 31, the ends of which engage wedges 32 and 33 secured to the angle irons 15.
Patent GB-1516375-A (GB)
Title: Variable interlace display
IPC: H04N3/16
Filed: 1975-10-31
Abstract: 1516375 Television AMERICAN OPTICAL CORP 31 Oct 1975 [20 Dec 1974] 45508/75 Heading H4F Apparatus for changing the interlace rate of a rastered display device e.g. in a scanning electron microscope system, and thereby improve the displayed image resolution, comprises a VCO 42 generating a frequency which is a multiple of the horizontal deflection rate and the desired interlace ratios, a counter 50 which reduces the VCO frequency to a frequency equal to the horizontal rate for the desired interlace rate, and a counter 54 which reduces the VCO frequency to a frequency equal to the vertical rate for the desired interlace rate, the counter 54 and thus the VCO being controlled 56 so that the dividend H/V of the horizontal rate H and vertical rate V is a fractional number the fractional portion of which represents the desired interlace rate. H/V equals the number of lines per field and thus if H/V = 262 1/n then the interlace rate is n:1. The VCO is preferably phase-locked 44 to the frequency of the main power supply for the display e.g. 60 Hz. The counter 54 is controlled by variable Modulo control 56. An example is described for changing the interlace ratio between 1:1, 2:1, 4:1, 8:1 and 16:1, and a second example for interlace ratios 1:1, 2:1,3:1,4:1 and 5:1.
Patent GB-1157694-A (GB)
Title: Improvements in and relating to Seat Support and Seat Unit including said Support
IPC: B60N2/04
Filed: 1966-10-14
Abstract: 1,157,694. Adjustable seats. AUTOMOBILES PEUGEOT. 14 Oct., 1966 [4 Nov., 1965], No. 45928/66. Heading A4J. A vehicle seat frame 1 is adjustably mounted on arcuate guides 7 each enclosing a slidable shoe 6 of plastic material. Arms 3 have outwardly directed pins 4 which releasably enter rubber sleeves 5 mounted in the shoes 6. The shoes have resilient tongues 9 engaging the roof of the guides 7 to prevent vertical play. Pivot pins (12 and 17) at Y and Z respectively are journalled in rubber bushes (11 and 16). The inclination of diverging arms 13 is controlled by rack 20 engaging cross-pin 22. The back rest B may be lowered rearwardly into a horizontal position, in alignment with the seat (Fig. 6, not shown).
Patent GB-944620-A (GB)
Title: Sulphuric acid solutions of polyacrylonitrile and their preparation
IPC: C08F8/00
Filed: 1961-12-22
Abstract: 944,620. Acrylonitrile polymer solutions. PHRIX-WERKE A.G. Dec. 22, 1961 [Jan. 30, 1961], No. 46077/61. Heading C3P. Solutions of acrylonitrile polymers containing at least 80% by weight of polymerized acrylonitrile are prepared by dissolving the polymer in sulphuric acid having a concentration of not less than 65% by weight and containing an inorganic sulphate which is soluble in sulphuric acid of the specified concentration. The preferred sulphates are aluminium and ammonium sulphates. The polymer may be polyacrylonitrile or a copolymer of acrylonitrile with other ethylenically unsaturated compounds, e.g. methyl acrylate. The solutions may also comprise dyes and pigments, e.g. titanium dioxide, formamide, and stabilizers such as those disclosed in Specification 944,619. The solutions may be used for spinning fibres and filaments.
Patent GB-1105683-A (GB)
Title: Improvements in fluid pressure drive systems for mineral mining machines
Inventor: ANDERSON FORREST SYMINGTON
IPC: F15B20/00
Filed: 1965-11-02
Abstract: 1,105,683. Hydrostatic transmissions. ANDERSON MAVOR Ltd. 27 Oct., 1966 [2 Nov., 1965], No. 46316/65. Heading F2D. An hydrostatic transmission for a mineral mining machine includes a fluid pressure operated plunger device which in the event of loss of pressure in the system operates to move the selector valve to the neutral position. In the closed circuit system shown an electric motor 2 drives main and primary pumps 1, 3, the flow to a motor 8 being controlled by a selector valve 9 operated by a hand lever 10 with which is associated a spring-loaded plunger 13 in a cylinder 12 connected to the primary pump line 6 and exhausting through a bleed valve 30. With normal working the pressure in the system overcomes plunger spring 14 and the end 31 of the plunger is held clear of lever 10, but in the event of loss of pressure spring 14 moves member 31 into contact with the lever 10 which is rotated into and held in the neutral position. In a modification, Fig. 2 (not shown), the valve 9 includes a biasing spring (32) and a spring rocker arm (36) is mounted between the plunger and selector lever. In a further modification, Fig. 4 (not shown), the plunger is operated by pilot valves (23, 25) connected between the flow and return lines 4, 5.
Patent GB-1065202-A (GB)
Title: Running anchorage for a rope or cable
IPC: B63H9/10
Filed: 1965-11-03
Abstract: 1,065,202. Rigging. C. D. P. SMALLPEICE. Nov. 3, 1965, No. 46657/65. Heading B7V. [Also in Divisions B8 and E2] A running anchorage for a rope or cable which in use is subjectable to universal angular movement about the anchorage while under tension includes a hollow track member having one side formed by lips 13 (not shown), and 14 which extend towards each other with a gap between them and a trolley which is movable along the interior of the track member between limiting positions and which has a portion extending outwardly through the gap for the attachment of an end portion of the rope or cable thereto, the trolley having wheels 16-19 (two shown), which are drawn into running engagement with the inwardly facing sides of the lips by tension applied to the rope or cable and the trolley having roller means 22, 23 journalled thereto at right-angles to the wheels so as to effect a running engagement with the edge of one of the lips when the rope or cable inclines laterally from that side of the track member. The limiting positions are provided by stop means secured within the track member. The trolley includes a substantially rectangular block 15 the width of which is such that it can pass through the gap between the lips 13, 14; adjacent each end the trolley is provided with a pair of the wheels and the wheels have rounded peripheries which are surrounded by the concave sides of the lips 13, 14. In each end portion of the block is a recess for the rollers 22, 23 which are journalled on vertical pins 24, 25. Centrally of the block 15 is an inverted U-bolt 26 the arms of which extend through holes in the block and are held in position by nuts 27, 28 the end portion of the rope or cable being clamped to the block by the U-bolt. The stop means each comprise a rubber block (not shown), each of which is held in place by a headed pin which extends through aligned holes in the track member side walls and in the block. The headed pin is held in place by a split-pin, not shown. The walls are provided with a series of pairs of aligned holes so that the position of each rubber block can be adjusted. One use of the anchorage is for anchoring the end portion of the main sheet of a sailing boat.