baber/WOPTO huggingface dataset:
Patent GB-1275940-A (GB)
Title: Flexible waveguide
IPC: H01P3/14
Filed: 1969-10-06
Abstract: 1275940 Flexible waveguides TELEFUNKEN PATENTVERWERTUNGS GmbH 6 Oct 1969 [5 Oct 1968] 49052/69 Heading H1W A flexible waveguide for simultaneous transmission of two mutually perpendicularly plane polarized electromagnetic waves is formed by a metal tube having a substantially constant cross-section of substantially square internal outline with rounded corners, the wall thickness of the tube varying circumferentially, as shown, such that bending on torsion of the tube causes minimum distortion to the internal outline of the tube. The opposite inside surfaces of the waveguide may be either parallel, or curved slightly outwards, as shown.
Patent GB-1249550-A (GB)
Title: Writing instrument
Inventor: KOELN HAROLD EMIL
IPC: B43K7/12
Filed: 1969-10-06
Abstract: 1,249,550. Retractable writing instruments. PENN CORP. 6 Oct., 1969; No. 49075/69. Heading B6P.  A push-button actuated retractable ballpoint or fibre-tip pen comprises a barrel 4 formed at its front end with flexible fingers 18 biased together by a resilient band. 24 to a position where they close the front end of the barrel, the fingers each having a shoulder 28 for co-operation witha camming surface 42 formed on a cartridge 8 of the pen so that when the cartridge is. moved towards the extended position the fingers are separated by the camming surface 42 to prevent the writing tip 39 from touching the barrel.
Patent GB-1157991-A (GB)
Title: Improvements in or relating to Pattern Recognition Systems
Inventor: HILL MARIAN
IPC: G06V30/192
Filed: 1966-10-04
Abstract: 1,157,991. Pattern recognition. MULLARD Ltd. 30 Oct., 1967 [4 Oct., 1966; 2 Nov., 1966], Nos. 44234/66 and 49170/66. Heading G4R. In pattern recognition apparatus, the edge of the pattern is followed to derive data in the form of a series of vectors of unpredetermined number, the series being compressed by averaging to a smaller predetermined number of vectors, to be supplied to a classifier comprising threshold logic. The outline of a character is followed using jumps from a matrix point to one of the 8 nearest matrix points and from that to one of the 8 matrix points nearest to it, and so on. Each jump is represented by an integer from 2 to - 2 representing the angular nearness to the upward vertical and a similar integer for the rightwards horizontal. A binary jump counter counts the total number of jumps, the direction numbers being stored at successive addresses specified by the jump counter. The jumps are then divided into 32 groups, the direction numbers for the jumps of each group being added to reduce the data to 32 average jump numbers. This is done using a first and a last address register, initially cleared. (1) After loading the lowest order 5 bits of the last address register into the first address register the sum of the latter and the jump counter is placed in the last address register. (2) The direction numbers from successive addresses of the store specified by the first address register are added, the first address register being successively incremented until it equals the last address register ignoring the lowest order 5 bits of each. At this point the sum of the direction numbers represents the first of the 32 average jump numbers and is stored under control of a measurement address counter. Steps (1) and (2) are now repeated to get further average jump numbers, until 32 have been obtained as indicated by a decoder fed by the measurement address counter (which is incremented for each successive average jump number). Other schemes for dividing the original jump direction numbers into a predetermined number of groups for averaging are described. The 32 average jump numbers are passed to a plurality of threshold logic units in each of which the input bits are summed and thresholded after weighting by resistors (the values of which may be prechosen by a learning process) to identify the character. Possible ways in which the threshold logic units divide up the range of possible characters so that the outputs of the units in combination identify the character are described.
Patent GB-1201045-A (GB)
Title: Electrical switches
Inventor: DRIVER DOUGLAS LOUIS ASHTON
IPC: H01H13/785
Filed: 1967-11-02
Abstract: 1,201,045. Retractive switches. STANDARD TELEPHONES & CABLES Ltd. 2 Nov., 1967, No. 49889/67. Heading H1N. A push-button is a dome-shaped projection 2 on a plate of springy material 1 integral with the dome and fixed in position about the dome, pressure on dome 2 causing a snap action deformation of the dome, the remainder of plate 1 remaining undeformed, the deformed material resuming its original shape with a snap action on release of the pressure. As shown, the domes 2 are the moving contacts for engagement with fixed contacts 4, formed by sprinted circuit, withterminals 6 on an insulating plate 5 separated from plate 1 by insulating spacer 3, the plates being bonded by epoxy resin at their edges, and rivets 7 may be used. The springy material of plate 1 may be nickel silver or in some applications plastics. A non-oxidizing stud 9, Fig. 2 (not shown), may be mounted on the underside of domes 2 when plate 1 is of oxidizing material. To provide a wiping action the fixed contacts may be small pieces of metal 10, Fig. 3 (not shown), mounted by resilient straps 11, Fig. 3, to the conductors 12, Fig. 3, An apertured faceplate may fit over plate 1. In a second embodiment, beneath the plate 1 is a locating plate 16 locating balls 17 of resilient insulating material such as hard rubber which bear on moving contacts on contact springs 13 formed in a metal plate spaced from the printed circuit board 5 and on top of plate 1 is a transparent sheet of flexible insulating material 18 marked with push-button indicia with an apertured face-plate 8 over that. The contacts may be change-over contacts.
Patent GB-1137390-A (GB)
Title: Improved apparatus for starting and operating arc lamps
IPC: H05B41/04
Filed: 1966-11-08
Abstract: 1,137,390. Discharge lamps. GENERAL ELECTRIC CO. 8 Nov., 1966 [24 Feb., 1966], No. 49975/66. Heading H2H. A circuit for starting and running an arc lamp, particularly one having a metal halide filling comprises a ballast indicator 14 feeding a rectifier bridge 16 connected to a voltage doubling circuit 21, 22. When a spring loaded switch 40 is moved to a " start " position, a capacitor 31 discharges through a winding 33 of an autotransformer 33, 34 providing a voltage pulse to strike the lamp. Sufficient " follow through" current is provided by capacitors 26, 27 to enable the rectifier to take over the running current. A relay may be substituted for the switch 40.
Patent GB-1241688-A (GB)
Title: Stapling filaments
IPC: D01G1/08
Filed: 1968-10-22
Abstract: 1,241,688. Stapling tows. E. I. DU PONT DE NEMOURS & CO. 22 Oct., 1968 [23 Oct., 1967], No. 50039/68. Heading D1F. A continuous filament tow 1 is stapled by passing the tow into a breaker zone between feed rolls 5, 6 and delivery rolls 9, 10 containing breaker 7 and snubbing the tow between the feed rolls and the breaker 7. As shown, the snubbing is performed over 2 stationary non-rotatable guides 11, 12. Alternatively snubbing can be effected by both pins or rolls. Guide 8 regulates the width of the tow. The stapled tow can be rebroken by arranging a further pair of nip rolls (18, 19) after rolls 9, 10, (Fig. 2). The tow can be drawn and heated prior to the stretch-breaking and may be crimped after it.
Patent GB-1401470-A (GB)
Title: Composite article
IPC: B32B5/18
Filed: 1972-10-31
Abstract: 1401470 Layered articles DYNAMIT NOBEL AG 31 Oct 1972 [2 Nov 1971] 50214/ 72 Heading B2E [Also in Division B5] A method of making a composite article comprising a phenolic resin foam having a layer comprising cellulose fibres adhering to the surface thereof, comprises allowing a foamable phenolic resin to foam in contact with the layer comprising cellulose fibres so as to form the desired article, the layer comprising cellulose fibres having been impregnated, at least on the side which contacts the resin, with at least one paraffinic hydrocarbon having a b.p. above 150C and/or at least one chlorinated hydrocarbon having a b.p. above 150C before contacting the resin. In examples resin is applied between two impregnated webs which are applied to respective support bands and passed through heated rollers to blow and cure the resin. The cellulose fibres may be in the form of soda-kraft paper, paperboard stock or woolfelt pasteboard and may optionally be bituminised or impregnated with fireproofing agent. The hydrocarbon impregnating agent may be applied as a liquid, solution, emulsion or melt, by brushing or spraying. The phenolic resin may be a resol made by condensing 1 mole of a phenol with 1 to 3 moles of an aldehyde under alkaline conditions. Suitable phenols are phenol, its homologues and alkyl substituent derivatives, e.g. resorcinol, pyrocatechol, cresols, xylenols and mixtures thereof. Suitable aldehydes are formaldehyde, compounds which decompose to formaldehyde (e.g. paraformaldehyde and trioxane), acetaldehyde, furfurol, hexamethylene tetramine, and mixtures thereof. Prefered blowing agents are lowboiling organic solvents such as chlorinated fluoromethanes, n-pentane, petroleum ether, methylene chloride, ethylene dichloride, or solids such as alkali and alkaline earth carbonates. The resin may also contain polyester, or esters such as dibutyphthalate, or the addition product of ethylene oxide and phenol.
Patent GB-1121538-A (GB)
Title: In phase detector
IPC: G05B19/33
Filed: 1965-11-26
Abstract: 1,121,538. Digital control systems. BUNKER - RAMO CORP. 26 Nov., 1965 [27 Nov., 1964], No. 50424/65. Heading G4H. A numerical control system for controlling the movement of a machine tool member along two or more axes comprises a generator 10 for clock pulses, a clock pulse frequency divider 12, a modulator 14, 15, 16 for each axis, adding or subtracting pulses in accordance with the desired movement of the machine tool member along that axis, means 34, 35, 36 for dividing the frequency of the signals by a constant factor, servo means receiving the command signal from each divider for moving the machine tool member, further frequency dividers 61, 62; 63, 64; 65, 66; 67, 68 for dividing by a further factor the output of divider 12 and the command signals, and a diode gate 82- 85 which indicates whether the signals are all in phase, to provide a check that the signals, in the absence of any input command, are all in phase. The output of divider 12 is applied to a sine and cosine generator 22 to provide quadrature signals for feedback resolvers 27, 28, 29 for the respectives axes. The outputs of the resolvers are compared with the outputs of the dividers 34, 35, 36 and the error signals are applied to servo units 44, 45, 46 controlling the movements in the three axes. In the intervals between movements i.e. when no command inputs are applied to terminals 18, 19, 20, the phase checking circuit should cause indicator lamp 92 to light. Specification 912,657 is referred to.
Patent GB-1036099-A (GB)
Title: Process for the production of aqueous polymer dispersions
IPC: C08F271/00
Filed: 1963-12-20
Abstract: Compounds having the formula <FORM:1036099/C3/1> in which R1 is hydrogen or CH3 and R2 is chlorine, C6H5, OOC.R3 or COOR4, R3 being hydrogen or a monovalent saturated aliphatic hydrocarbon radical containing 1-18 carbon atoms and R4 being a monovalent saturated aliphatic hydrocarbon radical containing 1-8 carbon atoms are polymerized by a free radical method in aqueous phase in the presence of a polymer or copolymer of an open chain N-vinyl-amide of formula <FORM:1036099/C3/2> in which R5 and R6 each represent hydrogen or a hydrocarbon radical containing 1-20 carbon atoms.  The amount of polyvinyl amide dispersing agent may vary from 0.1 to 50% by weight of the water used and the polymeric products obtained are thus either polymer dispersions or graft copolymers.  Exemplified monomers polymerized are vinyl acetate, vinyl acetate with dibutyl maleate, styrene, methyl methacrylate, ethyl acrylate, ethyl hexyl acrylate and ethyl hexyl acrylate with vinyl chloride in the presence of di-n-hexyl-azelate plasticizer.  Other conventional surface-active agents and catalysts are exemplified.
Patent GB-1018168-A (GB)
Title: Improvements in stator assembly
IPC: F01D9/04
Filed: 1963-12-24
Abstract: 1,018,168. Gas turbine engine stator vane mounting. GENERAL ELECTRIC CO. Dec. 24, 1963 [Dec. 28, 1962], No. 50878/63. Heading F1T. A gas turbine engine stator assembly comprises two or more arcuate segments of vanes supported by the engine casing, each segment having inner and outer shrouds extending circumferentially beyond the end vanes of the segment to provide a flow area between the end vanes of the adjacent segments which is equal to the flow areas between adjacent vanes in each of the segments at operating temperature, and wherein the segments are located in circumferentially spaced relationship by securing one portion of each of the inner shrouds in a fixed position on an annular support and permitting the remaining portions of the segments to expand or contract circumferentially relative to the fixed portions with changes in operating temperature. A gas turbine engine nozzle vane assembly 20 comprises a series of segments 25 having radially outer and inner shrouds 26, 27 which extend circumferentially distances Y, Z, Fig. 4, (not shown) beyond opposite end vanes 28 of each segment 25. A gap C is provided between adjacent segments 25 at assembly such that at normal operating temperature expansion causes the segment 25 to abut resulting in an equal area between all adjacent vanes 28. Each segment 25 is located by a bolt 43, Fig. 1, passing tightly through a fixed annular member 40 and a hole 33, Fig. 3 (not shown), in a flange 32 on the inner shroud 27 and by bolts passing loosely through holes 34, 35 and member 40 so as to permit circumferential expansion of the end portions of the segment. An outer flange 31 on segment 25 abuts a flange 46 extending from the engine casing 12. Tongues 36, 37 on the shrouds prevent leakage.
Patent GB-1270174-A (GB)
Title: Method of producing yarns and threads
Inventor: GAILEY ROBERT MCNAUGHT
IPC: D02G3/40
Filed: 1969-10-17
Abstract: 1,270,174. Yarn united by adhesive. J. & P. COATS Ltd. 16 Oct., 1970 [17 Oct., 1969], No. 51070/69. Heading D1W. A method of producing yarns and threads consists in applying a thermoplastics material in powder form to a number of fibres or filaments, bringing the fibres or filaments together into a bundle, and fusing the powder by causing it to become heated to a temperature above its melting temperature. An electrostatic attraction may be caused to exist between the fibres and the powder by electrifying the fibres prior to application of the powder, or by electrifying the powder as it is applied. The density of deposition of the powder may be regulated to give the desired degree of cohesion of the fibres. The powder may have a lower or higher melting point than the material of the fibres, in the latter case, the powder is caused to become heated at a rate sufficient to cause fusing of the powder before sufficient heat can flow into the fibres from the fused powder to damage the fibres. The heating may be accomplished by dielectric loss in the material of the powder, or infra-red radiation of a wavelength absorbed by the powder but not by the fibres. The fibres may be dyed prior to application of the powder and if necessary given a light twist after fusing of the powder.
Patent GB-1479645-A (GB)
Title: Paper trimmers
IPC: B26D1/20
Filed: 1974-11-26
Abstract: 1479645 Paper trimmers PATERSON PRODUCTS Ltd 5 Nov 1975 [26 Nov 1974] 51138/74 Heading B4B A paper trimmer comprises a base board 1, a fixed blade 2, a rotary blade 6 mounted in a carriage 5 and adapted to be rotated as the carriage is moved along a guide rail 3, 4 by means of a friction drive wheel 7 on the upper surface of the guide rail. The guide rail is made from transparent plastic material. The blade 6 is mounted on a shaft 8 which also carries the friction wheel 7, the latter being urged into contact with the rail by a spring 12; the spring is shaped so as to maintain the cutting blade in either of the two positions shown in Fig. 3.
Patent GB-1402298-A (GB)
Title: Support for rotary tubular furnace or similar apparatus
IPC: B02C17/18
Filed: 1972-11-07
Abstract: 1402298 Bearings FIVES LILLE-CAIL 7 Nov 1972 [10 Nov 1971] 51383/72 Heading F2A [Also in Division F4] A bearing, e.g. for a horizontal rotary furnace comprises a plurality of rollers 18 arranged on an arc of a circle, each roller resting on an elastic cushion formed from an elastomeric material, or one or more chambers filled with liquid, e.g. oil under pressure. The bearings 30 of each roller 18 have a shank 32 individually mounted in bores 26 in the chamber wall 24 and bear on a flexible metal plate 28, this pressure being balanced by the oil-pressure in chamber 20. The rollers, being individually displaceable, move to distribute the load evenly. In a modification the rollers are in groups, each group having a separate hydraulic cushion arrangement. Or there can be a separate hydraulic jack for each roller (Fig. 4, not shown). In another embodiment the rollers are replaced by bars 56 forming shoes, fixed on a flexible metal plate 58 which rests on a cushion 60 of elastomeric material.
Patent GB-1085030-A (GB)
Title: Improvements relating to bobbin spinning machines
IPC: B65H54/28
Filed: 1964-12-17
Abstract: 1,085,030. Winding bobbins. BARMER MASCHINENFABRIK A.G. Dec. 17, 1964 [Dec. 24, 1963], No. 51406/64. Heading D1J. A machine of the kind in which several filaments 4 and 5 are produced by a melt or dry spinning process and issue from a spinning shaft 1, is characterized in that a row of said shafts 1 and the take-off rollers 6, 7 therefor are arranged in a single row beneath which there are two separate rows of winding stations which are arranged opposite to each other and are separately driven. As shown the filaments pass over moistening and dressing discs 2, 3 on one side of the machine, and are wound up as packages 13, 14 on each side of the machine. The packages may be driven by rollers 17, 26. The bobbin spindles may also be individually driven by additional auxiliary drives to protect and relieve the surface of the cop packages. The transverse means comprises a pair of forked guides 18, 27 reciprocated by cam means 20, 29 running in a grooved drum 22. To facilitate the separate placing of the filaments 4 and 5 on opposite bobbins 13 and 14 at the start of spinning, a known drop roller on to which the filaments run may be arranged at the lower end of the panel 10, or, as shown, a filament suction device of known construction with compressed air duct 31 and suction aperture 32 for introducing the filaments may be provided.
Patent GB-1236861-A (GB)
Title: Improvements in or relating to bistable pneumatic cells
Inventor: METIVIER ROBERT
IPC: F15B13/042
Filed: 1969-10-23
Abstract: 1,236,861. Fluid bi-stable units. R. METIVIER. 23 Oct., 1969 [31 Oct., 1968], No. 51937/69. Heading G4R. [Also in Divisions F2 and G3] A bi-stable pneumatic valve unit 1, which per se can be used to provide signals at either one of two output lines 16 and 17 or which in combination with loop lines 18, 35 and 19, 41 can function in the manner of an oscillator, comprises a single input line 8, a freely movable piston 9, two freely movable flap valves 12 and 13, two exhaust lines 21 and 22, two control ports 29 and 31, and two actuators 23 and 24 each of which has associated therewith a diaphragm 25, 26. Upon applying a pressure to line 8, the piston 9 is caused to move to, say, block passage 11 as a result of which a signal is produced at output line 16 and flap 12 is urged to close passage 14 leading to exhaust 21. Subsequently, if actuator 23 is caused to move inwardly, flap 12 is unseated and line 16 opened to exhaust 21. The resulting differential created across piston 9, in consequence of the relatively restricted communication between chambers 2a and 3, causes the piston to move in a direction to close passage 10. Accordingly, output 16 remains vented whilst output 17 is pressurized by virtue of its communication with input 8. If now actuator 24 is caused to move inwardly, piston 9 will move to close passage 11 and the valve will be returned to its first state. Operation of actuators 23 and 24 may be achieved by mechanical, hydraulic or electrical means.
Patent GB-1267946-A (GB)
Title: Improvements in self-propelled waterborne vessels
Inventor: CZERNIAK MARIAN KAZIMIERZ EDWA
IPC: B63H5/14
Filed: 1969-10-24
Abstract: 1,267,946. Ship propulsion systems. M.K.E. CZERNIAK. 21 Oct., 1970 [24 Oct., 1969], No. 52101/69. Headings B7M and B7V. A water jet propelled ship has one or more flared entry ducts extending from bow to stern and provided with vertically movable roof sections 3 which are adjustable by hydropneumatic jacks 4 to vary the effective crosssection of the downstream part of the duct which is provided with propellers 6 or combustible gas jets (not shown). Pivoting members 16, 17 are provided to deflect the jet to steer the boat. The duct roof and hull bottom are provided with ribs 8, and compressed air can be injected from nozzles 9 to reduce the skin friction. The vessel has an inflatable buoyancy member 14.
Patent GB-1171305-A (GB)
Title: Improvements in or relating to Acceleration Sensing Devices
IPC: G01P15/13
Filed: 1966-11-21
Abstract: 1,171,305. Accelerometers. KISTLER INSTRUMENT CORP. Nov.21, 1966 [Feb.15, 1966], No. 52102/66. Headings G1K and G1N. In a linear accelerometer in which an inertial mass is displaced from its zero position by an acceleration, the displacement being detected by the change in capacitance of a differential capacitor, one plate of which is mounted on the mass, and a signal transmitted to means for restoring the mass to its zero position, the metal mass, an annular coil 82, Fig. 2, embedded in resin, is suspended in the housing for axial movement by parallel pairs of wires 120, Fig. 10, and 118, Fig. 8, attached to the ends of rods 108, 116, mounted respectively with axes parallel to the axis 26 to the coil, to the casing of the accelerometer and to the coil. The wires are arranged to be tangential to a circle whose centre is coincident with that of the coil and also act as electrical connecting wires, the rods being made of insulating material with conducting end caps. In the embodiment, the coil is arranged in a radial magnetic held existing between a polepiece 74 Fig.2 on a permanent magnet 72 and a cup shaped soft iron member 62, to which the magnet 72 is soldered at 70 and which is connected to the accelerometer housing 12. The output from the differential capacitor is fed to the coil 82 to exert a restoring force on the coil. The differential capacitor is formed by stationary capacitor plates 86, 50, the former mounted by insulating block 138 on the polepiece 74 and the latter by insulating blocks 52 on an end plate 28 mounted on the member 62, and a movable intermediate capacitor plate 84 mounted on the coil 82. The plate 84 is connected to the end of the secondary coil of a differential transformer 182, Fig. 19, energized by oscillator 180. The stationary plates 86, 50 are alternatively charged each half cycle from the transformer through diodes 184, 186. Capacitors 188, 190 are provided to store the changes delivered by the capacitors C 1 , C 2  so that a continuous current is delivered, through Zener diodes 192, 194, to the coil 82 proportional to the axial acceleration and determined from the output across the load resistor. Connectors 30 provided the necessary electrical connections between the parts of the accelerometer and the circuitry above described which is also included within the housing 12. The whole is attached to a body whose acceleration is to be measured by a flange 24 on the casing 12.