baber/WOPTO huggingface dataset:
Patent GB-1071037-A (GB)
Title: Cyanine dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/06
Filed: 1964-09-08
Abstract: The invention relates to symmetrical cyanine dyes of the formula:- <FORM:1071037/C4-C5/1> wherein R is an alkyl or alkanoyl group, Q represents a halogen atom, Z1 and Z2 represent alkylene groups of 1-6 C, and n is 1 or 2, and the salts, e.g. alkali metal or ammonium salts of said dyes formed with the sulphonic acid group.  These dyes are prepared by reacting a compound of formula <FORM:1071037/C4-C5/2> with an o -halogeno alkane sulphonic or salt thereof or with an alkane sultone and reacting the quaternary salt thus formed with chloral alcoholate.
Patent GB-1472940-A (GB)
Title: Antennas for motor vehicles
IPC: H04N5/44
Filed: 1974-08-21
Abstract: 1472940 Aerials TOYOTA JIDOSHA KOGYO KK 21 Aug 1974 [14 Jan 1974] 36833/74 Heading H4A On the rear window of a motor car having a demisting heater wire supported thereby, there is in addition supported thereby a balanced antenna arrangement having a pair of terminals for the connection thereto of a coaxial cable, and an impedance matching means, e.g. a balun to allow the antenna to operate in balanced fashion. In Fig. 2 window 1 has mounted thereon demister wire circuit 5, 6 and antenna dipole 2 of dimensions suitable for FM broadcasts on the 88-98 MHz band. These components may be mounted on the window by coating, baking, metal evaporating or laminating techniques. The antenna is matched to the coaxial feeder 7 by quarter wave balun transformer 3<SP>1</SP>. In the embodiment of Fig. 1 (not shown) the arms of the dipole are connected by a half wavelength U-shaped coaxial line (3) the centre conductor and screen thereof being appropriately connected to the coaxial feeder. The dimensions of these baluns are made proportional to the wavelength at the centre of the above band.
Patent GB-358796-A (GB)
Title: Improvements in joints for electric cables
IPC: H02G15/013
Filed: 1930-12-06
Abstract: 358,796. Couplings. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, MOOR, E., Medway, Sole Street, Cobham, and BARRY, W. C., of Henley's Telegraph Works, Gravesend, both in Kent. Dec. 6, 1930, No. 36843. Addition to 340,426. [Class 38 (i).] A barrier joint for oil-filled cables according to the parent Specification is modified in that a hard bakelized paper tube 1 surrounding a rod 2 in the ends 8 of which the cable strands are fixed, replaces the soft paper wrapping round the sleeve connecting the bared ends of the cable. The deformable soft metal tube 3 mounted in the barrier wall 5 is adapted to be compressed radially on to the tube 1 by the conical clamps 15.
Patent GB-1402555-A (GB)
Title: Fibre reinforced cement composites
IPC: C04B28/02
Filed: 1971-08-05
Abstract: 1402555 Glass fibre composition NATIONAL RESEARCH DEVELOPMENT CORP 14 July 1972 [5 Aug 1971] 36856/71 Heading C1M [Also in Divisions C3 and D2] Glass fibres used to reinforce pozzolanic cements have the following compositions in per cent by weight: (a) 60-0% SiO 2 , 17À6% ZrO 2 , 16À4% Na 2 O, 5À0% CaO, 0À6% Al 2 O 3 , 0À1% TiO 2 , 0À07% Fe 2 O 3 , 0À1% MgO and 0À1% K 2 O; and (b) 61À4% SiO 2 , 18À5% ZrO 2 , 15À9% Na 2 O and 4À2% CaO.
Patent GB-1013038-A (GB)
Title: Improvements in electrical connectors
Inventor: HENSCHEN HOMER ERNST
IPC: H01R13/434
Filed: 1964-09-10
Abstract: 1,013,038. Two-part couplings. AMP Inc. Sept. 10, 1964, No. 37053/64. Heading H2E. An electrical connector 2 or 4 is formed at a side with an aperture and an insert 36 of resilient material is disposed therein projecting internally within the connector and externally at 38. The connector is mounted in a shouldered cavity of an insulating housing 46 by drawing it from the rear 48, the cammed surfaced gradually compressing the resilient insert 36 until it engages behind shoulder 56 thus holding the contact in position. The insert is of generally cylindrical form and may be a short length of plastics tubing arranged with its axis longitudinally of the connector. The tubing may be made of a polycarbonate, nylon, polyurethane, polypropylene or butyl rubber, or the insert may be of foamed polyurethane material.
Patent GB-775447-A (GB)
Title: Improvements in and relating to a mould and method for making feed rolls for stamp vending machines
Inventor: ZEIGLE KENNETH CAREW
IPC: B29C45/33
Filed: 1954-12-23
Abstract: 775,447. Moulding feed rolls for stampvending machines. ELECTRIC VENDORS, Inc. Dec. 23, 1954, No. 37282/54.[ Class 87(2). A mould for a hollow cylindrical feed roll having teeth on its surface (e.g. for a stamp vending machine) comprises a base member B, Fig. 2, having a recess 24 and a closure member 18. The recess 24 receives four matrix sections 31, 32, 33, 34 having teeth-forming cavities parallel to the axis of the recess 24 and spaced midway between the side faces such as 31a, 31b, Fig. 3, of the matrix sections. A pin 26 passes through the base member B and has a reduced part passing through the axis of the recess 24 a shoulder at the bottom of the recess supporting a hollow cylindrical metal insert 38 within the recess. Bolts such as 29, 30 are screwed into the matrix sections 31, 32, 33, 34 and move freely in the base member B. In operation, after the insert 38 has been placed in position on the pin 26, hot white nylon is fed, under pressure into the cylindrical mould formed by the recess 24 and member 38 through sprue hole 19 in closure member 18. When the nylon has cooled the bolts such as 29, 30 and the pin 26 are moved towards the base member B so that the matrix sections 31, 32, 33, 34 move to the dotted line position of Fig. 2, thus leaving the finished feed roll supported by the cylinder 38. Specification 774,715 [Group XIX] is referred to.
Patent GB-803841-A (GB)
Title: Improvements in roller grinding mills
IPC: B02C4/28
Filed: 1956-12-06
Abstract: 803,841. Roller mills. SPILLERS, Ltd. Dec. 6, 1956 [Dec. 21, 1955], No. 37333/56. Class 59 Material to be ground is conveyed from feed rollers r2, r1 to the nip between grinding rollers Rl, R2 by means of a cascade plate P which has a concave lower part a2 to present a concavity towards the grinding roller R1 and a convex upper part to present a concavity towards the feed roller r1 to provide a hopper-like entry a1. The plate P is either fixed or adjustable, e.g. by means of upper and lower pairs of eccentrics a4, a3, Fig. 2. A deflector plate D may also be provided. The roller R1 is preferably driven at a faster speed than the roller R2.
Patent GB-1530275-A (GB)
Title: Oil and water repellent polymers
IPC: C08F20/26
Filed: 1975-09-11
Abstract: 1530275 Flourine containing copolymers E I DU PONT DE NEMOURS & CO 11 Sept 1975 37383/75 Heading C3P An oil and water repellant polymer comprises by weight: (a) 20-99% of repeat units of a monomer of the formula wherein R f  is a perfluoroalkyl group of 4-14 carbon atoms and R is hydrogen or methyl; (b) 1-80% of polymer chain repeat units from a vinyl monomer which has no non-vinylic fluorine atom; and (c) 0À1-4%, based on the combined weights of (a) and (b) of polymer chain repeat units from a monomer of the formula CH 2 =C(R)-Z-Y<SP>(+)</SP>X<SP>(-)</SP> where R is hydrogen or methyl, Z is a connecting group which increases the susceptibility of the double bond to vinyl polymerization, y<SP>(+</SP>) is an onium ionic group which is not sensitive to pH changes and X<SP>(+)</SP> is a water solubilizing anionic group, the sum of (a) and (b) being 100%. Preferably the monomer (a) has, as group R f , the group C 2 F 5 (CF 2 ) n - where n is 4, 6, 8, 10 and 12 in the respective relative amounts of 35 : 30 : 18 : 8 : 3, with methyl acrylate as monomer (b) and CH 2 =C(CH 3 )COOCH 2 -CH(OH)CH 2 N<SP>(+)</SP>(CH 3 ) 3  Cl<SP>(-)</SP> as monomer (c) and optionally the further monomers CH 2 =C(R)CONHCH 2 OH, CH 2 = C(R)COOCH 2 CH(R)OH and are also included. Monomer (b) may also be an alkyl methacrylate in which the alkyl group contains 1-18 carbon atoms. Optionally monomer (c) may have the formula or where n is 2-6, Y<SP>11</SP> is (-NR<SP>1</SP>R<SP>2</SP>R<SP>3</SP>)<SP>+</SP> where each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is a C 1-4  alkyl group or any two of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> together are an alkylene group of 4-5 carbon atoms or and Y<SP>1</SP> is Y<SP>11</SP> or the pyridinium ionic group, e.g:
Patent GB-917358-A (GB)
Title: Process for the catalytic conversion of unsaturated hydrocarbons
Inventor: MEISINGER ERWIN ELMER
IPC: B01J31/12
Filed: 1960-11-01
Abstract: A catalyst for polymerizing or isomerizing olefins or for the side chain alkylation of alkyl aromatic hydrocarbons with an olefin comprises an alkali metal amide supported on an anhydrous metal oxide having a surface area of 25-500 square metres per gram and which has been promoted by an alkali or alkaline earth metal or compound thereof.  The preferred support is gamma-, eta-, or theta-alumina which may be impregnated with an alkali metal at 3 DEG -53 DEG C. above the melting point of the metal, e.g. by dropping the molten metal on the support or by passing an inert gas through the metal and the result vapours over the support.  Promotion by alkali or alkaline earth metal oxides, hydroxides or salts can be effected conventionally by impregnation followed by decomposition if necessary.  The alkali metal amide may be added by immersing the promoted support in a dispersion of alkali metal or alkali metal amide in liquid ammonia at the refluxing temperature followed by evaporation of the ammonia or by adding an alkali metal to the promoted support and refluxing in liquid ammonia followed by evaporation of the ammonia and/or reacting the metal with gaseous ammonia.  The catalyst preferably contains 2-20% by weight of alkali metal amide (calculated as the metal).ALSO:The polymerization, copolymerization or isomerisation of olefins or the side chain alkylation of alkyl aromatic hydrocarbons with olefins is effected in the presence of an alkali metal amide supported on an anhydrous metal oxide having a surface area of 25-500 square metres per gram and promoted with an alkali or alkaline earth metal or compound thereof. The olefin may be a mono-, poly- or cyclic-olefin, several being specified; polymerization results mostly in dimers, isomerisation shifts only the double bond, usually to a more central position.  The process may be effected batchwise or continuously in the liquid phase in the presence of a diluent hydrocarbon if desired, e.g. a paraffin, cycloparaffin or non-alkylated aromatic hydrocarbon. Polymerization or alkylation is effected at 50-300 DEG C. and 5-250 atmospheres using a reactant LHSV in continuous processes of 0.1-20.  In dimerisation processes undesired product isomers may be recycled to the reaction zone to effect isomerisation or may be separately isomerised at a lower reaction temperature but a similar catalyst e.g. at 0.75 DEG C. and 1-136 atmospheres.  The catalyst is particularly suitable for the conversion of propylene to 2-methly-2-pentene.  The catalyst is preferably a promoted gamma-alumina, e.g. containing lithium hydroxide on which is dispersed 2-20% by weight of sodium or potassium amide (calculated as the metal).
Patent GB-852751-A (GB)
Title: Waveguide circulators
Inventor: ALLIN PHILIP EDGAR VARNHAM
IPC: H01P1/39
Filed: 1957-12-02
Abstract: 852,751. Waveguides. MULLARD Ltd. Aug. 15, 1958 [Dec, 2, 1957], No. 37470/57. Class 40(8). A four-part waveguide circulator comprises two perpendicular rectangular waveguides 11, 12 and a substantially cylindrical body 3 of ferromagnetic ferrite material disposed within the waveguides at the centre of their junction, with the longitudinal axis of the body perpendicular to the plane of the waveguides. The ferrite body 3, can be of a magnesium-manganese ferrite and is affixed to one of the boundary walls of the junction, and an adjustable cylindrical impedance matching member 25 is provided in the other boundary wall in axial alignment with the ferrite body. The member 25 can be a threaded brass cylinder or a permanent magnet of ferrous metal, ferrous metal alloy, such as "Ticonal" (Registered Trade Mark), or ferrite material such as "Magnadur" (Registered Trade Mark), which can take the place of the permanent magnet required when the brass cylinder is used. The member 25, when magnetic, can be copper or silver-plated. In the construction shown in Fig. 6 an adjustable soft iron cylindrical screw 27 is provided and the magnetic field is produced by a silver-plated magnetic member 26. In the construction shown in Fig. 7 the member 27 is replaced by a threaded soft iron tubular member 29 which in a modification can encircle the member 26. In constructing the circulator a main body 1 has formed therein channels 11, 12, 13 and 14 which form short waveguides and a top plate 2 is secured to the body 1 by bolts engaging in tapped holes 15, further tapped holes 16 being provided along the four outside edges of the body 1 and the top plate for securing thereto end flanges of waveguide sections. The circulator can have an externally square cross-section as shown in Fig. 3 or a substantially circular cross-section as shown in Fig. 5, flat portions 4 being provided for the attachment of waveguide sections.
Patent GB-1384126-A (GB)
Title: Pressure control for a bridging clutch in a torque converter  of a motor vehicle transmission
IPC: F16H45/00
Filed: 1972-08-14
Abstract: 1384126 Change-speed control ZAHNRADFABKIK FRIEDRICHSHAFEN AG 14 Aug 1972 [21 Aug 1971] 37850/72 Heading F2D In a motor vehicle transmission wherein a torque-converter 2 is fed by a pump 9 through a pressure-regulator valve 5, the pump also feeding, through a control valve 24 the engage line 6 of a bridging clutch 1 arranged in the torque-converter casing and subject to disengage pressure by torque-converter working pressure, the pressure regulator 5 is loaded, in addition to its spring 20, by a connection 23 to a point 19 in the exhaust line # of the converter. By this means engage pressure in the clutch line C always has a constant excess (#p, Fig. 2, not shown) over converter pressure in spite of fluctuation therein, as compared with an existing arrangement, Figs. 1, 1a, not shown, where the pressure regulator 5 has only spring load, and a second pressure regulator (10) is arranged in the converter exhaust line between the points B and A, and is arranged to regulate the pressure at B to a value which is higher than all the pressure fluctuations caused by the differing flow restrictions of such items as heat exchangers &c., in the exit line A. Thus results in the pressure in the clutch engage line C being higher than is necessary, which necessitates an overweight clutch construction.
Patent GB-1489182-A (GB)
Title: Lead-acid batteries
IPC: H01M4/22
Filed: 1973-08-10
Abstract: 1489182 Forming plates for lead-acid batteries LUCAS BATTERIES Ltd 30 July 1974 [10 Aug 1973] 37922/73 Heading H1B A method of producing plates for lead-acid batteries comprises applying paste to the plate grids, immersing the grids in an aqueous solution of sulphuric acid, passing a current between the grids to raise the solution temperature to between 150‹ and 180‹ F. during the conversion of the paste to active material, stopping the current when the plates have been partially charged, allowing the partly formed plates to stand in the solution for at least 30 minutes and then completing the conversion of the paste to active material. The grids are made of lead alloy and are assembled in a polypropylene case 14, the positive plate grids being connected to lugs 17 and the negative plate grids to lugs 18. A spigot 17a on each lug 17 extends through a hole 16a in the partition walls 16 and is melted by a resistance welder 21 to connect the lugs 17, 18 of adjacent cells. The cell compartments are then filled with sulphuric acid and a D.C. source is connected to terminals 19. When the battery has been fully charged, the case is inverted to drain out the acid and then a thermoplastic lid is welded to the case.
Patent GB-1473635-A (GB)
Title: Exercising apparatus
IPC: A63B23/035
Filed: 1975-09-16
Abstract: 1473635 Exercising apparatus M BELKIR 16 Sept 1975 [6 Nov 1974] 37944/75 Heading A6M Exercising apparatus comprises a crossbar 10 first and second arms 20, 22 pivotally connected to the crossbar, and first and second resilient elements 16, 18 connecting the lower ends of the arms to the crossbar the arrangement being such that movement of the upper ends of the arms towards each other places the resilient elements under tension. The connection of the resilient elements with the crossbar is positionally adjustable in notches in the latter (Fig. 3, not shown) so as to vary the effective resistance of the elements and the upper ends of the arms are provided with handles 68, 70 and with pads 76, 78 for engagement by a user's thighs.
Patent GB-916824-A (GB)
Title: Improvements in office chairs
Inventor: STREET LESLIE JOHN
IPC: A47C7/00
Filed: 1960-11-05
Abstract: 916,824. Seats. TAN-SAD CHAIR CO. (1931) Ltd. Nov. 3, 1961 [Nov. 5, 1960], No. 38086/60. Class 52 (2). An office chair has a base comprising a vertically extending metal pillar 1 having a plurality of apertures 3 in its wall and a plurality of tubular metal legs 4 each radially and downwardly extending from the pillar with their inner ends 4b secured within the apertures by brazing welding, or the like, the inner parts of the lengths of the legs 4 and the apertures 3 having oval cross-sections with their major axes disposed in vertical planes. The apertures have their centres disposed in the same diametral plane of the pillar tube 1. The legs 4 progressively taper from an oval cross-section at their ends connected to the pillar 1 to a circular cross-section at the outer ends with the parts of the legs adjacent the outer ends 4a cranked downwardly, the open outer ends of the legs providing sockets for the reception of feet.
Patent GB-1008751-A (GB)
Title: Threshold logic system
IPC: H03K19/16
Filed: 1961-10-24
Abstract: 1,008,751. Circuits employing bi-stable magnetic elements. BURROUGHS CORPORATION. Oct. 24, 1961 [Feb. 2, 1961], No. 38092/61. Drawings to Specification. Heading H3B. Logical (Boolean) functions of a number of input variables are each realized by means of two or more threshold devices, one corresponding to each subfunction (the term is explained below) and the outputs of which are logically summed. An example of a threshold device is a magnetic core with windings energized each by one of the input variables, and with a bias winding, and which is set when the magnetic field exceeds a certain value. In the following equations the constants t, C represent respectively the number of clockwise and anticlockwise terms associated with inputs 1, 2, 3 and bias (0). With three inputs the truth table has eight rows, and where a row has the output function value 1, the total m.m.f. is assumed to exceed 1, and where the output is 0, it is assumed to be less than zero (these assumptions are taken care of by appropriate scaling of the problem). Considering the function representing the sum (mod 2) for example, the equations to be solved for t, C would be:- The cost function #t + #C represents the total number of turns required, and a solution is required which minimizes this, subject to the condition that all t, C should be positive. The simplex method of linear programming is now employed in which dummy and slack variables are introduced and solutions are obtained by iteration, to produce a minimum cost solution. In general, however, this will still contain one or more dummy variables (in the cases where the initial equations are inconsistent, and no single-core solution is possible). The residue function defined by these dummy variables is that which, when logically added to that obtained (a subfunction), will produce the desired function, and this is re-treated by the Simplex method, to produce a second subfunction, with or without further residue function. This process will terminate, giving a number of subfunctions, each specifying the turns to be wound on a single core. The simultaneous resetting of these cores will pass signals to produce the required function of the input variables at the output of an OR gate.
Patent GB-1096656-A (GB)
Title: Improvements in or relating to pressure control valves
IPC: B60T11/224
Filed: 1965-09-08
Abstract: 1,096,656. Fluid-pressure brakes; valves. H. TEVES, E. A. TEVES and M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM. GES.]. Sept. 8, 1965 [Dec. 8, 1964], No. 38364/65. Headings F2F and F2V. A pressure-reducing valve for insertion in an hydraulic system between a master cylinder and rear wheel brake cylinders of a vehicle is of the kind employing a differential piston 5 operating in a stepped bore 4 of a casing 1 having an inlet 2 and outlet 3, a passage 10 by-passing the piston being closable by a poppet valve 6 acted on by a valve spring 19 in the closing direction, but being normally held open, due to the action of adjustable spring 24, by abutment of a pin 18 of the poppet valve with a fixed abutment, the invention being characterized by the provision of a resilient block 28, e.g. of rubber, which is secured to the casing end wall for abutment by the pin 18 and also by the adjacent end of the piston, this resulting in a modified operation of the valve, the usual hysteresis, caused by the returning fluid having to overcome the valve spring 19 during brake release, being thereby obviated. In operation, as master cylinder pressure rises above the " changeover " point, at which the piston moves to the right to close the valve, output pressure rises at a reduced rate as determined by the relative piston areas, but this is modified by the action of the block to give further reduction of the rate as pressure increases, the resilience of the block overcoming valve spring 19 on brake release.
Patent GB-326897-A (GB)
Title: Improvements in or relating to apparatus for use in distributing toys, novelties and the like
IPC: A63H33/00
Filed: 1928-12-31
Abstract: 326,897. Coleman, Ltd., C., and Coleman, C. Dec. 31, 1928. Toys made in box form; figures.-A container for toys &c. is provided on one side with a representation of a human or animal figure having an opening for the mouth through which a tongue projects, the tongue being moved upwardly by the hand as it is passed into the mouth to obtain a toy. The container is in the form of a collapsable box having end closures 13, 14 and a separate front side 3 upon which a head 4 is printed. A plate 8 is slidably mounted in guides 7 behind the front side 3 and is provided with a tongue 9 adapted to project through an opening 5. On insertion of the hand into the opening 5, the tongue 9 and with it the plate 8 are raised, with the result that eyes printed on the plate 8 become visible through eye openings 12 in place of eyelids that are normally visible.