baber/WOPTO huggingface dataset:
Patent GB-1036405-A (GB)
Title: Improvements in and relating to flexible conduits
IPC: F16C1/26
Filed: 1963-05-02
Abstract: 1,036,405. Bowden mechanisms; flexible tubes. TELEFLEX Inc. May 2, 1963 [May 2, 1962], No. 17357/63. Headings F2K and F2P. A flexible conduit in which a movable core 20 may be housed comprises a tube 12 surrounded by a sheath 14 formed of wires 22 and at least one plastics filament 24 wrapped helically round the tube 12 in side-by-side relationship. The tube 12 and filaments 24 are preferably of a plastics material such as nylon or P.T.F.E., and the filaments 24, which may be mono-filaments or of woven or spun multistrand form, may be of larger, smaller, or the same diameter as the wires 22. The wires and filaments may alternate regularly, and need not be contiguous. If two wires are not separated by a filament 24 a small gap is maintained between them. The sheath 14 is covered by roving 16 and an outer plastic cover 18.
Patent GB-1030369-A (GB)
Title: Improvements in or relating to slitting machines
Inventor: HOOD JOHN LAURENCE LINSLEY
IPC: B26D1/03
Filed: 1964-04-27
Abstract: 1,030,369. Slitting machines. BRITISH CELLOPHANE Ltd. April 15, 1965 [April 27, 1964], No. 17397/64. Heading B4B. A machine for slitting a sheet 1 into two or more narrower sheets 4 comprises a fixed tubular member 7 made of an aluminium alloy having spaced across its width transverse grooves 9 into which project one or more blades 5, air under pressure supplied to the interior of the member 3 passing through passageways 14 to the grooves 9 so as to provide an air cushion between the sheet 1 and the member 3. The blades are held in slidably-mounted spring- influenced holders 10 which are reciprocated by a cam 12 to vary the point of cut. Each blade may be retracted within its holder. If the cutting edge of the blade is set substantially perpendicular to the member 3, the blade may be reciprocated vertically in its groove to vary the point of cut.
Patent GB-961559-A (GB)
Title: Improvements in radio-detection receivers
IPC: G01S13/44
Filed: 1961-05-12
Abstract: 961,559. Radar. COMPAGNIE FRANCAISE THOMSON-HOUSTON. May 12, 1961 [May 17, 1960], No. 17408/61. Heading H4D. In an auto-tracking radar system in which target signals received by an aerial array 1 are combined in a differential coupler 3 to produce these sets of signals representative of the sum # of the signals from the four aerial elements and of an elevation difference signal #S and a bearing-difference signal #G, the sum signal is multiplied separately by the two difference signals in a receiver 5 to produce respective control signals for the elevation and bearing servo-devices which control the aerial scanning mechanism. In the receiver 5 the output signals from coupler 3 on channels 6, 7 and 8 which consist of pulse modulations of the frequency F of the radar transmitter 4, are fed to directional couplers 11, 12 and 13 to which the output of an oscillator 9 of frequency f1 is also supplied and the outputs from the couplers, having a frequency F-f1, are supplied to amplifiers 14, 15 and 16 the amplifier 14 in the sum # channel 7 being provided with an AGC circuit 17 which also controls amplifiers 15 and 16. The output from amplifier 14 is then mixed with an oscillation of frequency f2 from oscillator 22 in a frequency converter 18 and either the sum or difference frequency F - f1+f2 or F - f1-f2 of the output from 18 selected by filter 19 and supplied to frequency converters 23, 23<1> in identical units 20, 21 concerned respectively, with producing elevation and bearing control signals. The frequency converters 23, 23<1> have, as a second input, the outputs of amplifiers 15 and 16 fed through respective dephasers 24, 24<1> and filters 25, 25<1> select the frequency f2 in the output of converters 23, 23<1>. This frequency, which is modulated by the target. echo pulses, is then combined in adders 26, 26<1> with the frequency f2 from oscillator 22 (fed via dephasers 27, 27<1>) and the outputs of the adders, after rectification in 28, 28<1> are fed to pulse stretchers 29, 29<1> the respective outputs of which comprise the required control signals for the elevation and bearing servo control devices.
Patent GB-284139-A (GB)
Title: A piece of ordnance more particularly adapted for firing upon aircraft
IPC: F41A23/50
Filed: 1927-06-30
Abstract: 284,139. Schneider et Cie. May 11, 1927, [Convention date]. Mountings.- Relates to anti-aircraft guns which are counterbalanced during elevation by a spring device K, as described in Specification 244,707, and are provided with a ball-jointed training pivot D, as described in Specification 261,962. According to the present invention, the ball joint is mounted in the frame E of a motor vehicle so that during transport the gun can be fastened, as by means of a locking device h, b<1> and a foldable strut I, with its centre of gravity approximately over the centre, of gravity of the vehicle. During firing the vehicle is supported by struts J.
Patent GB-169296-A (GB)
Title: Improvements in means for raising the shares of ploughs or other agricultural implements
IPC: A01B63/16
Filed: 1920-06-26
Abstract: 169,296. Collings, J. M. B. June 26, 1920. Draught devices; frames of implements.-In ploughs or like implements in which the shares &c. are lifted automatically by the movement of a land-wheel, tilting of the frame downwards towards the rear is prevented by means of a chain or the like which limits the angle that the frame may make with the draw-bar. The front end of the frame a carries an upright C connected by a chain d to the front end of the drawbar e. In a modification, the chain passes over a guide-pulley on the upright c and is fastened to the cranked axle b<1> of the land wheel b; the rear wheel is dispensed with and a pivoted arm f prevents the shares from striking the ground too forcibly when lowered and causes the rear shares to enter the ground later than the forward shares.
Patent GB-624327-A (GB)
Title: Improvements in hand mirrors for toilet use
IPC: A45D42/08
Filed: 1947-07-03
Abstract: 624,327. Hand mirrors. LEITER, H. July 3, 1947, No. 17499. [Class 11] A mirror is fitted in a circular metal rim 2 of channel cross-section having ends 3, 4 turned outwardly and screw threaded externally, a plug 6 inserted between the ends and a cap 8 screwing down against the circumference of the rim preferably with a washer 7 interposed. A handle 9 is attached to the cap by a ball hinge. A transverse pin is passed through the assembled parts 5, 6, 8 to lock them together.
Patent GB-916385-A (GB)
Title: Improvements in or relating to methods of producing rods of semi-conductive material
IPC: C30B13/00
Filed: 1959-05-22
Abstract: In a method of growing a crystalline semiconductor rod containing alternate P and N type zones by withdrawal from a melt containing donor and acceptor impurities, the crystallisation rate is increased suddenly and for a short period to a rate above the intrinsic growth rate between periods in which it is below that rate, by an abrupt upward movement of the rod relative to the level of the melt.  The growth rate variation may be enhanced by varying the melt temperature.  A corresponding result is achieved in a zone melting process by suddenly moving the zone heating means a short distance towards the untreated part of the rod.  In the former process abrupt relative movement may be effected by sudden removal of a body from the melt to lower its level. Normally, in both processes, the material recrystallizing below the intrinsic rate is P type and above it N type.  The growth rate slowly reverts to its original level to give a graded resistivity N type zone with its maximum conductivity part adjacent the previously formed P zone.  If desired a sharp junction between the N zone and succeeding P zone and a reduction in thickness of the N zone is achieved by melting back part of the latter after temporarily halting recrystallization to remove concentration gradients in the melt.
Patent GB-827824-A (GB)
Title: Method of applying highly heat-resistant protective coatings to metallic surfaces
IPC: C23D3/00
Filed: 1958-06-02
Abstract: A metallic surface is coated by reaction with one or more metallic oxides and/or hydroxides and is then phosphated by a buring-in process.  The oxide or hydroxide is applied in solution or in suspension and burnt-in by heating at 800-1300 DEG C., if desired in an atmosphere of nitrogen or in vacuo.  Oxides and hydroxides of the following metals may be applied:- Mg, Ca, Cr, Fe, and Al and Mn; alternatively a metallic compound which forms an oxide or hydroxide when burnt-in, e.g. carbonate, sulphate, acetate, oxalate or nitrate, may be used.  Materials which may be employed in conjunction with the oxide or hydroxide are silicon, carbon in organically combined form e.g. cane sugar, SiO2, graphite, polyethylene powder and polyacrylic acid.  Phosphating is effected by applying a solution containing e.g. ammonium phosphate alkaline earth (especially calcium) phosphate, magnesium phosphate, aluminium phosphate, urea phosphate or phosphoric acid, and burning-in at 200 DEG -800 DEG C.  Other ingredients which may be included in the phosphate solution are wetting agents and inert fillers such as silicates, mica, Cr2O3, TiO2 and ZrO2.  Surfaces of Fe, Fe alloys and steel may be coated.
Patent GB-696563-A (GB)
Title: Improvements in or relating to method of making a duplicating master from an original and the duplicating matter resulting from said method
IPC: B41N1/24
Filed: 1951-07-25
Abstract: 696,563. Copying by means of radiant heat. DICK CO., A. B. July 25, 1951 [Aug. 8, 1950], No. 17627/51. Class 98 (ii). [Also in Group XVI] A stencil for use in duplicating is produced from an original copy by placing a film 10 of thermoplastic ink-impervious material in surface contact with the copy 11, and subjecting the copy to infra-red rays so that radiations are absorbed by the material in the dark letter parts 12 on the copy and converted into heat, the heat causing openings 14, Fig. 2, to form in corresponding areas of the plastic film through which ink may pass. Preferably the film is a stretched, highly orientated plastic film having a sensitivity to heat of the kind which causes rearrangement of the heated portions of the film into a lattice work of resinous concentrations and a plurality of openings through which ink may pass. The invention comprises also a stencil blank formed of a thin film of heat-sensitive plastic material with or without a reinforcing fabric connected thereto or embedded therein. Suitable plastics are polyvinylidene chloride and copolymers thereof with vinyl chloride or vinyl acetate plasticized as with polychlorobiphenyl, polychlorobenzene, polochloro diphenyl oxide, dibenzyl ether, aralkyl ethers, tricresyl phosphate, hexachloroethylene, styrene oxide, or phenoxy propylene oxide; polystyrene (molecular weight 25,000-65,000) plasticized with tricresyl phosphate, chlorinated biphenyl, or dibutyl phthalate; nylon plasticized with ptoluene sulphonamide; polychlorotrifluoro- or polytetrafluoro-ethylene; polyethylene; rubber hydrochloride; styrene-isobutylone copolymer ; styrene-acrylonitrile copolymer; polyvinyl butyral; polyvinyl acetals; cellulose esters or ethers such as ethyl cellulose or cellulose propionate-butyrate, polyvinyl chloride resin or vinyl chloride-vinyl acetate copolymer plasticized with dibutyl-, diamyl-, dioctyl-, or dibutyl cellosolve - phthalates (" Cellosolve " is a Registered Trade Mark), tricresyl phosphate, or triglycol di-(2-ethyl hexanoate), or in the case of the vinyl copolymer glycerol esters, camphor, or triacetin. The plasticizers are added if desired to lower the softening temperature of the film.
Patent GB-722458-A (GB)
Title: Improvements in or relating to the manufacture of blades for use in axial flow compressors or the like
Inventor: MASSEY BERNARD SIDNEY
IPC: B23P15/04
Filed: 1952-07-14
Abstract: 722,458. Compressor blades. BRISTOL AEROPLANE CO., Ltd. July 6, 1953 [July 14, 1952], No. 17763/52. Class 110 (3). [Also in Group XXII] In the manufacture of axial-flow compressor and like blades, the aerofoil blade blank 13 is formed separate from the root member 14 and is secured thereto by inserting an end portion of the blank into an opening 18 in the root member and then permanently deforming the latter so as to firmly grip the blade blank. Shallow recesses 20 are preferably formed in the blank to receive the displaced material of the root and form a key. The opening 18 is also enlarged at 19 and after deforming the root, the end of the blank is peened to fill the enlargement. The root member, which may be a die casting or forging consists of a plate 16 with a raised boss 17 surrounding the opening; the boss only is deformed for securing the blank therein and this deformation may be performed hot or cold. If the root member is of a harder metal, such as steel, than the blade blank, which may be of an aluminium-copper alloy, the pre-formed recesses 20 may be omitted since the material of the blank is sufficiently malleable to be indented by the root member during its deformation. A synthetic resin adhesive may be applied to the end of the blank and/or the opening in the root, which resin may be cold setting or be subsequently cured by heat treatment. The aerofoil blank may be made of high-tensile aluminiumcopper alloys, steel alloys or asbestos-resin plastic compositions and may be cut from rolled or extruded strip. The blades are mounted in peripheral grooves 12 in the compressor casing 11 by half rings 15 which have apertures 22 for passing over the blade blanks and which are secured to the casing by bolts 25.
Patent GB-280497-A (GB)
Title: Method of and apparatus for sizing metal bushes for bearings
IPC: B21K1/04
Filed: 1927-07-05
Abstract: 280,497. Bound Brook Oil-less Bearing Co., (Assignees of Claus, C.). Nov. 11, 1926, [Convention date]. Bearings. - Bearing bushes of porous compressible compositions, e.g. as disclosed in Specification 281,375, [Class 87 (ii), Moulding plastic &c. substances], are brought to final size in an apparatus comprising a shouldered mandrel 15, a co-operating die 12 and an ejector 19. The external sizing is effected by a sleeve 16 on a reduced portion of the mandrel, which, on the descent of the mandrel and under the influence of a strong spring 36 forces the bush into the die 12 against the resistance of a weaker spring 21. The continued descent of the mandrel causes the reduced part 17 thereof to size the interior of the bush the latter finally being compressed endwise to the correct length when the ejector contacts with the abutment 23. The ejector may be mechanically connected with the mandrel. The bush, which may be of compressed granulated materials e.g. copper, tin, zinc, lead and graphite may be initially impregnated with lubricating oil. The apparatus may be used to size only the internal diameter, or the external diameter, or the length of the bush. The mandrel is actuated by any external means. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the application of the invention to the sizing of metal bearings or bushes generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-1506211-A (GB)
Title: Soil cultivating implements combined with material-delivering mechanisms
IPC: A01B49/06
Filed: 1975-04-29
Abstract: 1506211 Soil cultivators combined with material-delivering mechanisms C VAN DER LELY NV 29 April 1975 [3 May 1974] 17887/75 Heading A1B A soil cultivating implement comprising rotary soil working members 10 which work strips of soil that are spaced apart by strips of unworked soil, is combined with mechanisms 35 for depositing seeds or powdered fertilisers, or plants or tubers onto those worked strips. Each soil working member 10 comprises a single tine 30 secured in a mounting 15 on the lower end of a shaft 9 carrying a drive pinion 17. Each seed depositing mechanism 35 is connected by a parallelogram linkage 36 to a common support bar 33 connected by brackets 34 to the frame portion 1. Each depositing mechanism 35 comprises a delivery disc at the bottom of a seed hopper 41. The disc is rotated by a transmission accommodated in an arm 39 which is connected via a frame 37 to the parallelogram linkage 36 and which supports a ground wheel 38 driving the transmission. The arm 39 is urged against a stop (not shown) by a tension spring 40. Furrow-opening discs 44 are provided, and the wheels 38 serve as furrow closers. The depositing mechanisms 35 may be replaced by a single ground roller mounted between arms secured at holes 46 and 45.
Patent GB-1084811-A (GB)
Title: Electrical plug-and-socket type connectors, suitable for use in mining
Inventor: HILYER FREDERICK GORDON
IPC: H01R13/527
Filed: 1963-05-07
Abstract: 1,084,811. Two-part couplings. COAL INDUSTRY (PATENTS) Ltd. June 11, 1964 [May 7, 1963], No. 17955/63. Heading H2E. A plug-and-socket connector has a bayonettype locking means provided by peg or pegs 51 and slot or slots 52 which co-operate together when the plug and socket are connected to permit relative axial and rotational movement between the parts so as to establish a flame-proof enclosure before the contacts abut each other, e.g. to close, firstly the earth circuit, then the power circuit, and finally the pilot circuit. The plug comprises a cylindrical portion 3 containing a contact 19 for a pilot circuit, an earth contact 18, and power contacts 17 which are of kidney shape, while cooperating socket contact portions 39 are spring- pressed so that once the power circuit is made during insertion of the plug it is not broken by further movement of the plug to complete the insertion. The electrical connection between fixed parts 38, 44 and spring-pressed contact parts 39, 45 for the power and earth contacts are made by flexible woven copper conductors 43, 46, the spring 50 being used to connect the pilot contact parts 48 and 49. The socket 2 can be mounted on a mining machine or switch gear and handles 6 or projections are provided on the plug 1 to enable the connector to be manually assembled. A latch may be provided to prevent accidental disconnection of the connector. The cable connected to plug 1 is gripped by compression rings 13 as gland 10 is screwed on to flange 8.
Patent GB-665839-A (GB)
Title: Improvements in or relating to oscillation generating apparatus
IPC: G01D5/243
Filed: 1948-07-05
Abstract: 665,839. Electric indicating systems. BENDIX AVIATION CORPORATION. July 5, 1948. [Aug. 29, 1947] No. 18045/48. Class 40 (i). [Also in Group XL (c)] In a telemetering system used in a radiosonde weather forecasting apparatus in which differences in ambient conditions are translated into variance of a resistive element which controls the frequency of a blocking oscillator which is itself used to frequency modulate a V.H.F. transmitter, changes in the frequency of the blocking oscillator with changes in battery voltage are substantially eliminated by including a RC network in the anode circuit of the blocking oscillator valve. The Figure shows a circuit in which variations in air pressure recorded by the aneroid barometer 68 control via the contact network 46 the effective resistance shunted across the grid capacitor 40 of the blocking oscillator stage comprising the left hand portion of valve 10. The circuit includes a temperature responsive resistor 54 and a humidity responsive resistor 56 so that as the radiosonde balloon ascends to regions of lower pressure the various measuring elements sequentially control the blocking oscillator frequency. Thus when the pointer arm 64 rests between conductive bars of unit 46 resistor 54 is switched into the grid circuit of the blocking oscillator and when the intermediate bars below the 60th contact are engaged relay 52 is energized and resistor 56 is in control. During the traverse of every fifth bar either resistors 42, 44 and 48 or resistors 42 and 44 alone are switched into circuit so that a standard calibration frequency is transmitted. The grid circuit of the blocking oscillator is directiy connected to grid 70 of a buffer stage to vary the conductivity of this stage and thus the voltage drop across resistor 74 in dependence on the blocking oscillator frequency. The varying voltage drop across resistor 74 thus frequency modulates the V.H.F. oscillator comprising valve 88. The frequency of the blocking oscillator is rendered substantially independent of changes in the battery voltage 28 by the R.C. network 26, 30 in its anode circuit which has a time constant approximately three times that of the period of the conductive portion of the blocking oscillator cycle.
Patent GB-660952-A (GB)
Title: Improvements in or relating to expansible chambers of the diaphragm type
IPC: F16J3/02
Filed: 1949-07-08
Abstract: 660,952. Pistons. ANDERSON, N. R. July 8.1949, No. 18059/49. Class 122(i) [Also in Group XXIX] In an expansible chamber 32, Fig. 5, such as for a press or riveter, having a wall thereof formed by a diaphragm, which latter comprises a flexible surface member 21 that is supported by a reinforcing member 23 consisting of a plurality of closely pitched turns of relatively rigid strip material loosely coiled about a central axis to form a spiral, it is arranged that the bottom side of the spiral is supported from fixed and movable fingers 46 and 31, respectively, the fixed fingers 46 only supporting the spiral at the end of the inward movement of the diaphragms: the inner edge of the reinforcing member 23 may be clamped to a grid 30 from which the fingers 31 radially project whilst the outer edge of the reinforcing member 23 is clamped by a yoke 37 from which the fingers 46 project. The surface member 21 is made up of several sheets 22 of flexible impervious material such as rubber or plastic cloth, whilst the reinforcing member 23 is preferably metal. The diaphragm 20, Fig. 12, is assembled by clamping the inner edge 50 of member 23 to member 21 by a washer 27 having a centre screw 28 passing through a centre piece 29 and screwing into the grid 30, a lower surface member 21a of flexible material being clamped between the grid 30 and member 23. The member 21, Fig. 1, is clamped to the outer edge 33 of the reinforcing member 23 by a distance piece 34 attached by screws 36 to the fixed wall 35 of the chamber 32, whilst the member 21a is clamped to edge 33 by the yoke 37 that is secured by bolts 38 to wall 35, a barrel 39 being closed by a spring 41 located between the press head 42 and grid 30. to the press mandrel 40, the chamber 32 between the press head 42 and grid 30. The head 42 is secured to the yoke 37 by bolt extensions 43, a barrel 44 acting as a distance piece, whilst the spring 41 is enclosed by a collar 45 limiting the downward movement of the grid 30. The fingers 31 of the grid 30 are situated between the inwardly projecting fingers 46 of the yoke 37, each set of fingers having inclined surfaces 52 and 47, respectively. The reinforcing member 23 is sealed at 60, Fig. 5, from atmosphere by a rubber solution for example, the air being removed from the sealed zone prior to the application of the seal. the surface members 21b and 21c therefore tending to cling to the member 23 by suction. The sealed zone may contain liquid or grease. Member 23 may incorporate holes through which passes a binding material such as a leather cord, to limit movement between adjacent turns 24, 24a of the spiral. Surface members 21b and 21c may be joined so as to develop the member 23 and adjacent turns 24, 24a, which are not necessarily of the same material, can be separated by spacers 57 of wire mesh, for example. The strip material forming the member 23 may be coated prior to winding, the coating forming members 21b and 21a. The outer edge of the reinforcing member may be non-flexible.