baber/WOPTO huggingface dataset:
Patent GB-1081696-A (GB)
Title: Catalysts for olefin polymerisation
IPC: C08F4/68
Filed: 1964-08-04
Abstract: Olefines are polymerized using a catalyst which is the interaction product of a vanadium compound; an organo metallic compound of formula RMgX, LiAlR4 or RAAlXB where R is hydrocarbon, X is halogen, A is 1, 2 or 3, B is 0, 1 or 2, (A + B) is 3; and a phosphorus trihalide; optionally together with an oxidizing agent.  Examples refer to polymerization of (1)-(4), (7)-(19), ethylene + propylene; (5), (20) ethylene + propylene + dicyclopentadiene; (6) ethylene + propylene + 1,4-hexadiene. Other monomers referred to are butene-1; hexene-1; 4-methyl pentene-1; 5-methylhexene -1; 4-ethylhexene-1; methyl cyclopentadiene dimer; 11-ethyl-1,11-tridecadiene; 1,9-octadecadiene; 1,5-cyclooctadiene.  Terpolymers may contain 1 to 25% diene, 30 to 80% propylene, the remainder being ethylene. The 1,5-cyclooctadiene.  Terpolymers may contain 1 to 25% diene, 30 to 80% propylene, the remainder being ethylene.  The oxidizing agent may be one disclosed in copending Specifications 1,081,695 and 1,081,697.ALSO:A polymerisation catalyst is prepared by mixing a vanadium compound, an organometallic compound having the formula RMgX, LiAlR4 or RAAlXB where R is hydrocarbon, X is halogen, A is 1, 2 or 3, B is 0, 1 or 2 and A+B=3, and a phosphorous trihalide. There is at least one halogen atom in the vanadium compound or the organometallic compound.  The catalyst may also comprise an activator, for example oxygen, an organic or inorganic peroxide or hydroperoxide, an N-oxide, or an activator disclosed in copending Specifications 1,081,695 and 1,081,697.  The vanadium compound may be a halide, oxyhalide, alkoxide, acetyl acetonate, alkyl vanadate or alkyl halo-vanadate.  Examples relate to:- (1) - (8), (10), (11), (13), Pcl3 + Et3 Al2Cl3 + VOCl3; (9), PCl3 + triiso butyl aluminium + VOCl3; (12), Et3Al2Cl3 + VOCl3 + C2H5No2 + PCl3; (13), (16), Et3Al2Cl3 + VOCl3 + 2-nitropropane + PCl3; (14), EtALCl2 + butyl vanadate + C2H5No2 + PCl3; (15), Et3Al2Cl3 + VOCl3 + PCl3 + pyridine N-oxide; (16), Et3 Al2Cl3 + VOCl3 + PCl3 + nitrobenzene; (18), Et3 Al2 Cl3 + VOCl3 + (1), isoamyl nitrate; (2), isoamyl (19), (20), Et3Al2Cl3 + PCl3 + pervanadyl chloride + 2-nitropropane.
Patent GB-645530-A (GB)
Title: Improvements in the walls of buildings and like structures
IPC: E04B1/06
Filed: 1948-11-30
Abstract: 645,530. Slab walls. CHICK, E. D. Nov. 30, 1948, No. 30990. [Class 20(iv)] A wall or partition adapted for spanning openings bounded by load bearing walls, comprises slabs of light weight concrete or the like laced together by wires embracing each slab and interconnected and strained to anchorages in the load bearing walls, the surfaces of the wall being rendered. The load bearing walls A, of which one is shown, are provided with a series of built-in bifurcated ties B having lugs C projecting beyond the wall. A member D, which may be a window head, spans the opening between walls A and forms a support for the slabs of lightweight concrete E<SP>1</SP>, E<SP>2</SP>, E3 which form the core of the partition. The slabs are laced together and to the walls A, by first connecting the mid length of wires F to the lugs C of the lower ties B in the wall at the right hand side of the opening, placing the first slab (not shown) in position, and bending each wire to lie horizontally along both faces of the slab so that its free ends project beyond the end face thereof. A second wire F<SP>1</SP> is then laid across the free ends, which are twisted around the wire F<SP>1</SP> by a tool H, the second wire F<SP>1</SP> then being bent as before, to lie along the faces of the second slab E<SP>1</SP>. At the last slab E<SP>3</SP>, the wire is strained by a tool K and connected to the lugs C as shown. The partition is then rendered as at L, the rendering being reinforced by the wires.
Patent GB-770785-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K23/12
Filed: 1954-10-28
Abstract: 770,785. Reservoir pens. NEEDS, A. J. Oct. 21, 1955 [Oct. 28, 1954], No. 31149/54. Class 146(3). A reservoir pen comprises a tubular casing D of generally oval cross-section and tapering towards both ends, a writing unit B, and a detachable cap E of generally oval crosssection which can be fitted over either end of the casing, one end of the casing having a circular hole which holds the writing unit B and from which the unit protrudes, and the other end of the casing being tapered to a thin edge G. As shown, the unit B is a ball-point unit which is press-fitted into the front end of the casing. The casing D, which may be of moulded plastic material, is tapered to provide two somewhat blunt knife edges G<SP>1</SP>, and can be used as a paper-knife. The writing unit could be a fountain pen with a collapsible reservoir : in this case, as the casing is oval-shaped, the user will naturally grip it at the same angle, and writing will be facilitated. The cap E has an integral pocket-clip E<SP>1</SP>, and a metal band F.
Patent GB-1106289-A (GB)
Title: Anatomical display device
IPC: G09B23/30
Filed: 1966-07-12
Abstract: 1,106,289. Educational models. A. M. SACKLER. 12 July, 1966, No. 31179/66. Heading G5G. An anatomical display device comprises a base 11 carrying thereon indicia representing anatomical members e.g. heart, lungs, a model brain and spine 12, 13 including a planar member 24,18 carrying representations of the medial sagittal sections of the brain and spine, longitudinally and vertically spaced planar members 28, 21 carrying representations of the transverse sections of the brain and spine, and lines 33 representing nerves extending from the indicia to respectively related points on the members 28. The nerve lines are preferably coloured and pass to their related points via slits in members 21 and apertures in the members 28. To facilitate lacing of the nerve lines the apertures may have coloured areas adjacent thereto corresponding to the colour of the nerve line and the members 28 may include slits extending into communication with the apertures. The members 18, 24, 21, 28 are preferably made of transparent organic resin with representations applied directly thereto, or with preferably transparent sheets or films laminated therewith. Members 21, 28 illustrating a diseased or abnormal state may be used. The indicia may be three-dimensional.
Patent GB-286021-A (GB)
Title: Improvements in or relating to charging internal combustion engines under pressure
IPC: F02B1/00
Filed: 1926-12-09
Abstract: 286,021. Towler, C. O. Dec. 9, 1926. Spray carburettors.-An injector supplied with gases taken from the cylinder or cylinders during high pressure periods is utilized either to force air through the carburettor, or to drive the mixture into the cylinder. The combustion chamber or cylinder barrel is provided with a valve, e.g. a ball or other non-return valve B, or a valve operated mechanically, e.g. by a cam, which opens during high pressure periods in the cylinder and allows gas to pass into a storage chamber, e.g. a pipe K, which communicates with an injector N arranged in or connected to the air inlet of the carburettor, or situated in the induction pipe. The gases taken from the cylinder may be controlled either by (1) a stop valve on the pipe K, (2) a needle valve in the injector, (3) limiting the lift of the non-return valve B by an adjustable screw C, or (4) arranging the cam to be longitudinally or circumferentially adjustable on its shaft. The control means may be interconnected with the carburettor control. In the case of a sleeve valve engine, the injector is connected to a port in the cylinder wall which is uncovered by a port in the valve at high pressure periods. When the injector is situated on the intake side of the carburettor, conduits are provided through which the pressure in the carburettor is transmitted to the float chamber and fuel tank.
Patent GB-175023-A (GB)
Title: Process for separating impurities from sticklac to obtain pure or practically pure lac resin
IPC: C09F1/00
Filed: 1920-11-04
Abstract: 175,023. Fraymouth, W. A., Nagle, J. C., and Kestner Evaporator & Engineering Co., Ltd. Nov. 4, 1920. Resins.-Sticklac is crushed, preferably to such a size that it passes through a sieve of 20 meshes to the inch but not through one of 30 meshes, and the product is washed by agitation with water, preferably rendered slightly alkaline. The washed material, either before or after drying and dry-cleaning by means of a current of air, is mixed with a liquid, such as a solution of sugar or of a salt, of greater density than water, and a clean granular lac resin free from heavier and lighter impurities is obtained from the suspension by classification in a settler or an imperforate centrifuge. The settled impurities and also the dust from the crushing operation may be treated with solvents to recover further quantities of resin. A suitable liquid for the classification has a density of 1.05, but the density may be varied according to the nature of the raw material treated.
Patent GB-1470951-A (GB)
Title: Flame retardant system
IPC: C08L23/00
Filed: 1974-04-03
Abstract: 1470951 Flame retardant compositions UNIROYAL Inc 3 April 1974 [3 April 1973] 31249/76 Divided out of 1470717 Heading C3P Polymers are rendered flame retardant by incorporating a synergistic composition comprising (1) 1,2,3,4,9,9-hexachloro-1,4-dihydro- 1,4 - methanonaphthalene - 5,8 - diol and (2) urea, magnesium oxide, magnesium sulphide, magnesium acetylacetonate, polyvinyl chloride, trityl chloride, Al 2 O 3  or Al(OH) 3 . The polymer may be an ABS polymer.
Patent GB-1146966-A (GB)
Title: Improvements in or relating to axial piston pumps
IPC: F04B1/20
Filed: 1966-07-12
Abstract: 1,146,966. Reciprocating pumps. HYDROMATIK G.m.b.H. July 12, 1966 [Aug.11, 1965], No.31344/66. Heading F1A. A multiple delivery, swash-plate or tilting-head pump has stepped pistons 7', the stepped portions of which work in separate pumping chambers 8', 9' with separate connections 5', 6' to a ported valve block 20 which has a common inlet port 1' and separate delivery ports 18, 19. In the tilting-head embodiment, Fig. 1 (not shown), the separate delivery conduits (16), pass through the pivots (17) of the head assembly.
Patent GB-393854-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/34
Filed: 1932-11-08
Abstract: 393,854. Vacuum cleaners. HOOVER, Ltd., Perivale, Greenford, Middlesex.- (Hoover Co. ; North Canton, Ohio, U.S.A.) Nov. 8, 1932, No. 31558. [Class 8 (i).] A rotary agitator for a vacuum cleaner comprises a smooth-faced cylinder provided with a longitudinal narrow depressed portion which may be helical and extend substantially the whole length of the cylinder. Fig. 1 shows two such agitators 10, 11, provided with recesses 10a, 11a mounted so as to form the suction lips of a nozzle. The hood fits closely to the surface of the agitators to form a seal and a bar 14 extends across the nozzle.. Alternatively the agitators are mounted adjacent the bar 14 and may constitute lips for air entering from an air tunnel, in which case the lips of the suction nozzle are made wide to form an air seal. Each agitator is formed in two parts resiliently connected to a shaft upon which are mounted pinions 29 meshing with worms 35 driven by a belt 44.
Patent GB-751836-A (GB)
Title: Improvements in or relating to frequency stabilising systems for very high frequencyoscillators
IPC: H03L7/04
Filed: 1954-11-02
Abstract: 751,836. Automatic frequency control. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 2, 1954 [Nov. 20, 1953], No. 31617/54. Class 38 (4). [Also in Group XL (c)] The error signal varies the relative phase of two outputs of an auxiliary oscillator, the two outputs being applied to a phase discriminator whose output controls a potential applied to the oscillator whose frequency is to be kept constant. Klystron K is coupled to the off-tune resonator C and crystal detector D to give an error signal across resistor R to control the grid of valve M. A low-frequency local oscillator 0 applies signals to tuned amplifiers A1 and A2 over circuits comprising respectively inductor L1 in series with capacitor C1 and crystal diode D1 in parallel, and C2 in series with L2 and D2 in parallel. The Specification shows that the effect of the error current from M flowing in circuit L3, L2, D2, D1 and L1 is to vary the phases of the voltages between points 6-2 and 7-4 in opposite sense so that the outputs of valves A1, A2, which control two grids of phase discriminator P, vary in opposite sense to produce a control signal at the anode of P for application to the reflector of klystron K. The potentiometer R3 may be varied to control the positive bias applied to the screen grid of M and adjust the phase difference of the potentials applied to P until with zero error they are just 90 degrees out of phase. It is stated that the invention has an application in stabilizing the local oscillators of radar receivers.
Patent GB-428392-A (GB)
Title: Improvements relating to trunk communication cable installations for the transmission of low frequency and high frequency currents
IPC: H01B11/20
Filed: 1933-11-13
Abstract: 428,392. Multiplex systems. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Nov. 13, 1933, No. 31620. Convention date, Nov. 12, 1932. [Class 40 (iv)] [See also Groups XXXVI and XL] A cable for use in a communication cable installation arranged for both high frequency and low frequency working comprises one or more high frequency transmission lines each consisting of four or more conductors arranged on a circular pitch line in the cable cross section, the conductors being combined together into two groups which form the " go " and " return " leads of the high frequency line, whilst the conductors of a group form between themselves low frequency transmission circuits. The conductors, which are preferably uniformly spaced around the pitch line and surrounded as a whole by an insulating covering of thickness equal to or greater than the distance between adjacent conductors, are preferably grouped such that each conductor of one group is disposed between two conductors of the other group. To reduce the capacity of the high frequency line, two or more adjacent conductors may be connected in parallel and treated as a single conductor, or the conductors may be of ribbon form and be so arranged that the width of the ribbon lies along the pitch line. The space enclosed by the pitch line may contain supplementary conductors which may be combined together, or with the metallic sheath of the cable or the conductors of the high frequency line, to form additional circuits. Two or more high frequency lines may be concentrically arranged and combined into phantom circuits for the transmission of higher frequencies. Four high frequency lines, which may be loaded and each provided with metal screens, may be stranded into a spiral or D.M. quad, phantom circuits being formed between each pair of lines. Preferably consecutively following but separated frequency bands are transmitted over the high frequency lines and the frequency ranges between these frequency bands over the phantom circuits. Fig. 3 shows a cable comprising strip conductors 21-24 wound on an insulating core 25 and used for both high and low frequency transmission. The conductor pairs 21, 22 and 23, 24 are used in parallel to form the outward and return leads of the high frequency line and the conductor pairs of the high frequency line each form a low frequency channel. The core 25 may be solid or may be formed with air spaces. The conductors are surrounded by solid or air-space insulation 26 over which is applied a metal sheath 27. The conductors 21-24 may be combined to form the inner conductor of a concentric high frequency cable of which the sheath 27 constitutes the outer conductor.
Patent GB-921693-A (GB)
Title: Improvements in or relating to the covering of heels with a plastic coating
IPC: A43D25/12
Filed: 1961-09-04
Abstract: 921,693. Covering heels; heels. A. SCHMITT, [trading as A. SCHMITT, [Firm of]]. Sept. 4, 1961 [Sept. 9, 1960; March 13, 1960; March 18, 1961; April 28, 1961], No. 31648/61. Classes 17 (1) and 17 (2). A method of covering heels, not of leather, with a plastic coating comprises moving an adhesive-coated heel 6 on a support 2 into a chamber sealed at one end by a heated adhesive coated plastic sheet 15 and at the opposite end by the support 2, the rear surface of the heel pressing into the plastic sheet 15 against the adhesive coating. The chamber is then evacuated to draw the plastic sheet 15 round the heel 6. A plurality of heels 6 are supported on adjustable mountings pivoted on walls 3. The support 2 possesses a hollow pump stem 2a. The heels 6 and their mountings are placed in an enclosure 1 possessing an opening 11 across which is stretched, between gaskets 14, 12 and clamping frame 13, a plastic sheet 15. Heating of the sheet to about 100‹ C. may be effected by infra-red means. A vacuum-tight enclosure is formed between gasket 16 and support 2. While in the coating position the heels may be cooled by a stream of air. Sheet 15 may be grained, grooved, coated with a metal or colouring material or possess a design on its inner or outer surface. In the last mentioned case the heel may be covered with a further layer of a transparent plastic sheet. The plastic sheet 15 may be coated with a primer prior to the addition of the adhesive. The flaps formed about the top surface and breast face of the heel may be conveniently trimmed or tightly pressed against their respective faces by a rapidly rotating shaft.
Patent GB-465883-A (GB)
Title: Improvements in or relating to electrical condensers for high tension circuits
IPC: H01G4/38
Filed: 1936-11-15
Abstract: 465,883. Electric condensers. STANDARD TELEPHONES & CABLES, Ltd., and WEBB, J. K. Nov. 15, 1935, No. 31676. [Classes 36 and 37] Two series of cylindrical parallel-connected electrodes 6<1> are brought into capacitative relation with one another by series of insulationseparated conductive cylindrical plates 6, arranged so as to form coaxial cones. These cones may be embedded in insulating material such as styrene, and may be enclosed in an outer ceramic shedded sealing chamber to form a cable terminal. Specifications 377,311 and 449,868 are referred to.
Patent GB-1286154-A (GB)
Title: Manufacture of drinking vessels
IPC: C08F2/48
Filed: 1969-06-24
Abstract: 1286154 Cups LILY CUPS OVERSEAS Ltd 24 June 1969 [24 June 1968] 31711/69 Heading A4A [Also in Divisions B2, B4-5 and C3] A drinking cup includes at least part thereof of a photo-polymerizable thermoplastic monomer polymerized by visible or ultraviolet irradiation, which may effect some cross-linking whereby the heat and chemical resistance properties of the polymer are enhanced. Depending upon the monomer employed, the radiation energy may be applied in a spectrum over the visible range of 7, 700 to 4, 000‹ A, and the ultraviolet range of 400 to 4, 000A. The radiation may be obtained from a quartz light, or mercury, or mercury xenon high-pressure point arc sources, may be interrupted by high intensity stroboscopic systems, and may be rendered mono-chromatic in the ultraviolet region by interference filters. Lasers may be employed such as the red light ruby flash and continuously operated helium neon, or argon lasers producing light in the near-ultraviolet  as well as the visible range. The monomers may comprise acrylic acid, acrylonitrile, butyl acrylate, butyl methacrylate, ethyl acrylate, ethyl benzene, methyl acrylate, methyl methacrylate, methacrylic acid, styrene, vinyl acetate, vinyl alcohol, vinyl benzene, vinyl chloride, vinylidene chloride, and vinyl methacrylate. Copolymers of various mixtures or monomers may also be employed such as acrylonitrile, butadiene, styrene or alpha - methyl styrene, or grafted polymers wherein styrene or acrylonitrile are polymerized in the presence of polybutadiene or styrene butadiene rubbers. The monomer may be applied e.g. by spraying one or more coats of the same or different monomer, as an impregnant and surface coating (See Division B2) to a pre-formed cup member 25, Fig. 2, e.g. to the exterior and/or interior surfaces of a plastics or paper board drinking cup, or other preformed cup of synthetic fibre paper of nylon, vinyl, or other materials of the registered Trade Marks Dacron, Dynel, Orlon, or of mineral fibre such as glass or asbestos. The cup 11a may also be formed, as a drinking cup entirely, or partially (upon a preformed member), from monomer within a moulding cavity defined between an upper male plunger 90a and a lower female member 91a. The moulding cavities 92a may also be defined between the lower members 91a and the exterior of a preformed container. The preformed member may be of À001 to À25" thickness, and monomer coatings may be spray applied thereto in thickness of À0001 to À10" and preferably À0005 to À01", with thickness pentration into the member of 10 to 90%. The moulded cup may be of À001 to À50" thickness.
Patent GB-796496-A (GB)
Title: Improvements in or relating to fluid pressure servo mechanisms
Inventor: ELMER ARTHUR ERNEST HENRY
IPC: F15B13/14
Filed: 1954-11-02
Abstract: 796,496. Fluid-pressure servomotor-control systems. BRITISH MESSIER, Ltd. Oct. 31, 1955 [Nov. 2, 1954], No. 31717/54. Class 135. A fluid-pressure servo system suitable for the operation of the flying control surfaces of aircraft has, associated with a piston control valve for the servomotor, piston means which are subject to the actuating pressure of the motor to oppose the control and so provide "feel". In an embodiment, a flying control surface 63 pivoted at 64 is connected to a mixing cylinder 68 containing a piston 69 attached at 72 to a fixed part of the aircraft structure. Passages 38, 41 lead from opposite ends of the cylinder 68 to the housing 25 of a control valve which is connected through a rod 11 to the pilot's control, the housing 25 being fixed with respect to the cylinder 68. The valve 16 has an extension 16c containing a spring 47 compressed between abutments 46, 48 which engage shoulders on the extension 16c and collars 14, 15 on the rod 11 thereby forming a yieldable connection between the valve 16 and the rod 11. The rod 11 also includes a piston 12 which is slidable in an axial bore through the valve 16. The valve has a land 20 coacting with axially spaced ports 32, 33 and a land 21 coacting with axiallyspaced ports 34, 35, the ports 32, 33 being connected to the passage 38 and the ports 34, 35 to the passage 41. Pressure fluid is supplied through a passage 29 to an annular chamber 30 whence it may flow, when the valve is in neutral position, through the ports 33, 34 to each end of the cylinder 68 and also through the ports 32, 35 and passages 16a, 16b to exhaust passages 43, 51 respectively. The pressures at each end of the cylinder 68 are communicated through ports 37, 40 and 23, 24 to either side of the piston 12 to provide " feel ". Due to the fact that the pressures in the ends of the cylinder 68 also act on the outer ends of lands 19, 22 of the valve 16 the latter, after being deflected, is automatically returned to its neutral position when the pilot releases pressure on his control. Under low-speed flight conditions, movement of the rod 11 is transmitted to the valve 16 without compression of the spring 47. Should the control surface 63 be deflected by aerodynamic forces under highspeed flight conditions the consequent changes of pressure in the passages 38, 41 will react on the piston 12 to cause the pilot to apply opposing pressure to effect correction. Under these conditions the spring 47 will be compressed before the valve 16 is moved. Should the fluid pressure system fail a piston 81 would be moved to the right to interconnect the two ends of the cylinder 68 and a spring-loaded piston 59 would be released to lock a member 54 connected to the rod 11. The aircraft could then be controlled by its trimming tabs.