baber/WOPTO huggingface dataset:
Patent GB-219964-A (GB)
Title: Improvements in lens systems
IPC: G02B13/00
Filed: 1924-07-14
Abstract: 219,964. Zeiss, C. [Firm of]. Aug. 1, 1923, [Convention date]. Lenses. - Lens systems of large aperture (F/1.9) for use as microprojection systems or as photographic objectives, corrected spherically chromatically and comatically, consist of five elements having eight air to glass surfaces. Two collective elements I, III, having a dispersive element II between them, are followed by a cemented doublet IV, V. The elements IV, V have opposite refractive power and the dispersive element V of the doublet forms one of the outer members of the lens system and is a meniscus. Numerical data are given in the Specification.
Patent GB-890111-A (GB)
Title: Improvements in or relating to fluid pressure relief valve assemblies
Inventor: REYNOLDS DESMOND HENRY JAMES
IPC: E21D15/51
Filed: 1957-05-28
Abstract: 890,111. Hydraulic pit props. B.R.D. CO. Ltd. May 23, 1958 [May 28, 1957], No. 16830/57. Class 20(2) [Also in Group XXIX] A fluid pressure relief valve for an hydraulic pit prop comprises a spring loaded ball 12 which controls the discharge of fluid from a chamber 21 forming part of a pressurized fluid system for the prop into a chamber 1 and a second spring- loaded ball 17 which controls the discharge of fluid from chamber 1 and which initiates the latter discharge at a pressure which is less than the pressure which causes operation of the ball valve 12. The ball 12 is loaded by a spring 14 acting through a pressure plate 13. The ball 17 is mounted in a plug-like subsidiary housing 7 and is loaded by a spring 18. A bleed passage from chamber 1 to the exterior may be provided by a clearance between the engaging screw threads of the plug 7 and the chamber body 1.
Patent GB-1079462-A (GB)
Title: Improvements in pile driving plant
Inventor: KNOWLES NORMAN
IPC: E02D13/04
Filed: 1965-04-21
Abstract: 1,079,462. Pile driving. LEONARD FAIRCLOUGH Ltd. April 20, 1966 [April 21, 1965], No. 16907/65. Heading E1H. A pile driving plant comprises a pile leader or frame A held vertical by a crawler excavator/crane B, the pile C<SP>1</SP> being supported by a carriage D adjacent its upper end and by a second carriage D<SP>1</SP> adjacent the lower end. The pile driver C slides on the leader or frame A. The upper and lower carriages are adjustably mounted on the frame, the lower portion of which is pinned on the front two rods a<SP>1</SP> and hinged on the rear two rods a so that it may be pivoted backwards to enable the pile to be driven to ground level. The lower end of the leader or frame A is maintained in the vertical position by an adjustable stay or strut B<SP>1</SP>.
Patent GB-201353-A (GB)
Title: Improvements in apparatus for reconditioning used oil in the lubricating system of an internal combustion engine
IPC: F16N39/00
Filed: 1922-06-19
Abstract: 201,353. Sweetland, E. J. June 19, 1922. Recovering waste lubricants.-Oil circulating in the lubrication system of an internal-combustion engine is freed from water and light spirit by passage through a spherical vessel 7 heated by exhaust gases passing through a jacket 9, and admitted from the exhaust pipe 5 through a valve 33 adapted to be operated simultaneously with the throttle so that the valve becomes partially closed when the throttle is opened. The control valve 33 may be placed in the exit pipe 31. The vessel 7 has an inlet 11 and outlet 13 for the oil and an outlet 19 for the vapours. The vessel may be fitted with a hollow extension with heat-absorbing fins projecting into the exhaust pipe 5, and the oil may be supplied to the vessel through the lower end of this extension.
Patent GB-222921-A (GB)
Title: Improvements in mud guards for vehicles
IPC: B62D25/16
Filed: 1924-04-02
Abstract: 222,921. Beattie, W. H. T. April 2, 1924. Drawings to Specification. Mud-guards for motor-cars and like road vehicles comprising an inner side portion or valance secured to the vehicle and supporting a peripheral portion or guard proper, have this peripheral portion made wholly or partly of resilient material such as rubber. The side portion may also be of resilient material. The rubber may be provided with a canvas insertion and a beaded edge. The outer edge only of the guard may be of rubber, either the rubber or the metal being shouldered so that the parts can be riveted together.
Patent GB-989455-A (GB)
Title: Cytosine derivatives and the manufacture thereof
IPC: C07D239/46
Filed: 1963-05-01
Abstract: The invention comprises 4-(N-monoacyl) -1-[31,51 - di - (O - aroyl) - 21 - deoxy - D - ribofuranosyl] - 5 - fluoro - cytosines, including their alpha and beta anomeric forms, and a process for their production comprising acylating 5-fluoro-cytosine, treating the resulting 4-(N-monoacyl) - 5 - fluoro - cytosine with a mercury salt, e.g. mercuric chloride or acetate, to form the corresponding monomercury salt, reacting the monomercury salt while suspended in an inert, water-immiscible, organic solvent with a 3,5-diaroyl - 2 - deoxy - D - ribofuranosyl halide to form a mixture containing the alpha and beta anomers of a 4-(N-monoacyl)-1-[31,51-di-(O-aroyl) - 21 - deoxy - D - ribofuranosyl] - 5 - fluoro-cytosine and, if desired, separating the alpha and/or beta anomer from the mixture. The preferred compounds are those in which the 4-monoacyl group is a 4-toluoyl, 4-acetyl or 4-pivaloyl group and the aroyl groups are p-toluoyl groups.  Alpha and/or beta anomers of 1-(21-deoxy-D-ribofuranosyl) - 5 - fluoro - cytosine are prepared by alkaline hydrolysis of the alpha and/or beta anomer of a 4-(N - monoacyl) - 1 - [31,51 - di -(O-aroyl) - 21 - deoxy - D - ribofuranosyl] - 5 - fluoro-cytosine. Specification 989,456 is referred to.
Patent GB-595110-A (GB)
Title: Improvements in furniture for door locks or the like
IPC: E05B3/06
Filed: 1945-07-04
Abstract: 595,110. Door furniture. GOLDSTEIN, A. July 4,1945, No. 17098. [Class 44] In a combination of an escutcheon plate and door handle, the handle being journalled in the plate for rotary displacement limited by two stops, and being biassed in one direction of rotation by a spring, the apertured escutcheon plate 10 of pressed sheet metal has a flat face 11 and is flanged at 12 to have a recessed back, an apertured. fixed stop member 13 of sheet metal lying within this recessed back and having on its edge locating flats 14 which engage parts of the flange 12 to fix it in position. A handle shaft 19 is rotatably mounted in a bush 15, which may be turned from drawn or extruded thick-walled tube, and is reduced at 16 to form a spigot, which is a close fit within the circular apertures in the eschutcheon plate 10 and stop plate 13 ; the bush being locked in place by flanging over the end of the spigot at 17. The inner end of the handle shaft 19 has flats and keyways, accommodating flats 24 and tongues 25 on the inside of a stop washer 26, which rotates with the shaft, and is retained by a snap-ring 27 fixed in a circumferential groove 28 in the shaft, a third tongue 29 projecting radially from the washer 26 lying between two tongues 30, 31 struck up from the fixed stop plate 13 to limit the rotary displacement of the handle shaft. The bush may have a cylindrical counter bore 20 in its spigot end accommodating the helical torsion spring 21 which surrounds the shaft. Both ends of the spring are bent parallel to its axis, the inner end 32 being anchored in a hole 33 in the stop washer 26, and the outer end 22 in a recess 23 in the bottom of the counterbore. The handle 34, which may be machined from an extruded section, is screwed to its shaft and locked by a pin 35.
Patent GB-1483983-A (GB)
Title: Profiles for window and door framing
IPC: E06B3/273
Filed: 1975-04-24
Abstract: 1483983 Frame members RE VOISIN and ENTERPRISE VOISIN 24 April 1975 [24 May 1974] 17122/75 Heading E1J An elongate heat-insulating frame member for windows and doors comprises a hollow T-section member 3, a U-section member 10 each formed from sheet metal and strips 11 of insulating material disposed between the metal members. The strips are formed with beads 13 and slots 15 to engage in the grooves 14 of the member 10 and with projections 12 to contact the member 3. The strips may be joined to form a single U-shaped member and the metallic member 10 may be absent. The metallic members contact the insulating material over a small area only, elsewhere there are air spaces (9), 16.
Patent GB-1004816-A (GB)
Title: Improvements relating to warning signalling means
Inventor: POWSEY ERIC
IPC: G08B1/08
Filed: 1963-05-01
Abstract: 1,004,816. Road traffic signals on vehicles. LINREAD Ltd. April 28, 1964 [May 1963], No. 17133/63. Heading G4Q [Also in Division H2] A Bowden cable connecting an operating lever 4 to a caliper brake 6 has its outer sheath divided, without severance of the inner wire 7, and the two sheath ends so exposed are anchored to respective support members 11 and 11A adapted for movement towards and away from each other, so that when tension is applied to the inner core wire the attendant compression in the sheath moves the support members to bring into contact conductive elements 12 and 12A which complete the circuit of a brake light 14. The support members 11 and 11A may form part of a generally U-shaped body 9 which is preferably of moulded plastic such as nylon but may be of metal.
Patent GB-109704-A (GB)
Title: Improvements in Diving-dresses.
Inventor: DAVIS ROBERT HENRY
IPC: B63C11/02
Filed: 1916-11-29
Abstract: 109,704. Davis, R. H. Nov. 29, 1916. Divers' dress.-To enable existing diving-jackets to be secured to the trousers in the manner described in Specification 109,678 without altering the jacket or using unduly large rings, a band c is secured at its upper end to the inside of' the jacket while its lower end hangs free. Specifications 26169/08, 12962/07, and 13604/05 also are referred to.
Patent GB-594658-A (GB)
Title: Improvements in and relating to phasemeters
IPC: G01R25/00
Filed: 1944-09-08
Abstract: 594,658. Phase - difference measurements. PHILIPS LAMPS, Ltd. Sept. 8, 1944, No. 17184. Convention date, Sept. 23, 1943. [Class 37] A direct-reading phasemeter depends upon the principle that the product of two oscillations, obtained by means of a multiplying mixer, contains a D.C. component proportional to the cosine of the phase angle between the oscillations and also an A.C. component of double frequency, the amplitude of which corresponds to the factor of proportionality of the D.C. component. By rectifying the A.C. component both currents may be compared in a quotient meter, the deflection of which is proportional only to the cosine of the phase angle and is independent of the amplitude and frequency of the oscillations. Two oscillations e1, e2 of the same frequency but displaced in phase are applied to the input terminals 1, 2 of a multiplying mixer M, the supply circuit of which comprises a resistance 3 and an inductance 4 in series, the resistance 3 having a byepass condenser 7<1> in parallel with it. The constant direct current Io in the product generated by the mixer M is balanced out by an opposing current provided by a compensating means 5. The D.C. component I proportional to cos # is passed through one coil u<1> of a ratiometer V. The second-harmonic component of the mixer output is passed through a selective amplifier A and then through a rectifier R, the rectified output of which is passed through the second coil u<11> of the ratiometer V. The coils u<1>, u<11> may be fixed at right angles on the shaft of the moving system and arranged to move in a uniform magnetic field, or the coil u<1> may be arranged to move in a radial magnetic field whilst the coil u<11> moves in a field which varies as the sine of the angle of deflection. In a modification, two similar mixers are connected in push-pull.
Patent GB-988682-A (GB)
Title: A system for sensing attitude and altitude of an object above a horizon
IPC: G01S3/786
Filed: 1961-07-28
Abstract: 988,682. Photo-electric determination of attitude and altitude. BARNES ENGINEERING CO. July 28, 1961 [Aug. 26, 1960], No. 17241/63. Divided out of 988,681. Drawings to Specification. Heading H4D. The description is substantially as in Specification 988,681 but the claims relate to attitude and altitude determination.
Patent GB-276117-A (GB)
Title: Improvements relating to couplings for electric cables
IPC: H02G15/115
Filed: 1926-07-10
Abstract: 276,117. Ellison, G., and Choat, E. C. July 10, 1926. Junction boxes.-Means for coupling electric cables comprise an open-sided box a containing terminals h extending beyond the open side, and having a flat side e so that two such boxes may be secured together, as by bolts f. A plate i of insulating material, and a cover k, may be provided. Specifications 12552/94 and 171,250 are referred to.
Patent GB-741227-A (GB)
Title: A machine for separating sheets from the top of a pile
Inventor: TEBBS GEORGE WILLIAM
IPC: B65H3/50
Filed: 1952-07-09
Abstract: 741,227. Feeding sheets. BACKHOUSE, H. T. Oct. 1, 1953 [July 9, 1952], No. 17353/52. Class 100 (1). Sheet -separators.-In apparatus for separating sheets one by one from the top of a pile, means such as a brush, which may be rotated, or a member 25 is arranged to engage a side face of the pile 10 adjacent to one corner thereof at a position near the top of the pile and to elevate the corners of the sheets above the position of engagement, and a suction gripper 31 is arranged to engage the elevated corner of the top sheet and either further to elevate the corner or to hold the corner whilst the underlying sheets are permitted to fall back on to the pile. The member 25, which comprises a finger blade, and a stop arm 26 at each side thereof, are formed on a lever 24 which is pivoted to a lever 22 rockable about a fixed shaft 21. The member 25 is moved inwardly and upwardly, against the action of a spring 23, by a stop 20 which engages the lever 22 and is carried by an arm 19 depending from a rockable shaft 15 (not shown). A bell-crank lever 29 pivoted on a shaft 28 carried by the arm 19 has one arm 30 urged against the fixed shaft 21 by the spring 23, and the other arm 32 carries the suction gripper 31. The gripper communicates with a vacuum-producing source through passages formed in the rocker shaft 15, the arm 19, the shaft 28, and the bell-crank arm 32. The arrangement shown is duplicated at the other front corner of the pile, and each gripper 31 is moved upwardly and outwardly to stretch and lift the front edge of the sheet and present it to conveyer grippers. Blasts of air from nozzles 35 assist sheet separation. Front edge stops 36 are lifted clear of the pile in advance of stretching and lifting of the sheet, but a spring flip always bears on the pile to remove any underlying sheets still adhering to the top sheet. Each suction gripper 31 may be of the collapsing type having an initial movement derived from the build-up of suction when the mouth is sealed by a sheet. The shaft 15, to which the arm 19 is secured, is rocked by a face cam on a driving shaft. The apparatus may comprise the sheet-separator means in the machine described in Specification 741,226.
Patent GB-185876-A (GB)
Title: Machine for fixing heels to boots and shoes
IPC: A43D25/06
Filed: 1921-06-25
Abstract: 185,876. Young, C. A., and Wooding- ton, J. H. June 25, 1921. Heels and top lifts, machines for.-A machine for fixing heels and top lifts and extended portions of soles to the fronts of Louis heels without removing the shoe from the last comprises a double clamp pivoted to a post on a bed-plate and locked in position by pawls. A top lift 20. and heel 32, are held cemented in position by a sliding spring-pressed plate 17 adjustable by a screw 13 in a cross-piece 11. The cross-piece is held by two arms 3 pivoted to levers 7, which are pivoted at 35 to a post 6 on a. bed-plate 1. The arms 7 are connected to a handle 8 carrying a detent 9 engaging a post 4. The extension of the sole to the front of the heel is held by a pad 28 carried in steel clips attached to a plate 27 carried by straps attached to springs 26 on levers 22, 23, the lever 22 being pivoted on the post 6 and held by a detent 25 engaging the post 4.
Patent GB-1069708-A (GB)
Title: Mechanism for use in hand-starting internal combustion engines
Inventor: HARRISON WILLIAM IRVING
IPC: F02N1/02
Filed: 1966-04-21
Abstract: 1,069,708. Hand turning gear. THOMAS GREEN & SON Ltd. April 21, 1966, No. 17423/66. Heading F1K. In mechanism for use in hand starting internalcombustion engines, a gear-wheel 2 capable of meshing with a gear-wheel 1 rotatable with the engine, is freely rotatable on a shaft and capable of limited axial movement thereon and is adapted to be engaged by a starting handle, and a gravity operated arm 6 can stop the axial movement of such gear-wheel after it has reached its axially displaced position in which it does not mesh with the engine driven gear. The displaceable gearwheel has a boss which will telescope into the bore of a starting handle end and has parts or dogs 5 with which the drive teeth of the starting handle can engage. The invention is particularly for diesel engines such as are used in industrial equipment for example mobile rollers.
Patent GB-841662-A (GB)
Title: Wire cloth
IPC: B21F27/00
Filed: 1958-06-02
Abstract: 841,662. Wire fabrics. NATIONAL STANDARD CO. June 2, 1958 [Feb. 17, 1958], No. 17500/58. Class 142(4). [Also in Groups I and XXVIII] A wire fabric has one or more warps replaced by strips of wire braid 15, the fabric being subsequently cut along the braided strips. The wire of the braid is of smaller diameter than the warp and weft 11, 10. The wire fabric is hot galvanised.
Patent GB-1212106-A (GB)
Title: Sonar system
IPC: G10K11/34
Filed: 1968-04-11
Abstract: 1,212,106. Sonar system. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 April, 1968 [15 April, 1967], No. 17579/68. Heading H4D. In a sonar system in which the reception beam direction is scanned using an array of receiving elements and a tapped delay line compensator, the elements are connected in groups and in a cyclic sequence to the various taps of the delay line, the cycle time being equal to the delay time between the input and the first tap of the delay line. All incident beam directions are thus sampled within the propagation time of a sound wavefront between elements of the array, enabling a full sound picture to be obtained. As shown, hydrophones M (e.g. in a linear or circular array) are selectively connected by switching matrix SM to taps A4, A3-A5, A2-A6, A1-A7 of delay line D. At time T 1 , hydrophones Mn - 4 to Mn + 2 are connected to sample direction n - 1: at time T 2  hydrophones Mn - 3 to Mn + 3 are connected to sample direction n, and so on. The delay increments between successive delay line taps are in the ratio 1: 1: 2: 3: 4 and approximate the delays necessary to produce compensation, i.e. a cophasal output from the delay line. The matrix switching cycle is completed within the delay time between taps A4 and A3-A5. An electronic distribution switch VS, synchronized with the matrix switching, routes the signal samples for direction n to output Un, the samples for direction n + 1 to output Un + 1, and so on. From these samples the original sound signal waveform can be restored by means of an integrator. The number of hydrophones and their grouping may be other than as shown.
Patent GB-128111-A (GB)
Title: Improvements in or relating to Roller or like Bearings.
Inventor: DICKER STANLEY GORDON SINCLAIR
IPC: F16C19/36
Filed: 1918-10-30
Abstract: 128,111. Dicker, S. G. S., (Chicago Bearings Co.). Oct. 30, 1918. Roller bearings.-A cage for conical roller bearings comprises a flanged metal sleeve 12 formed with openings 14 of a size to rest on the outer parts of the rollers, and provided with projections 16 co-operating with a shoulder 17 on one of the race rings to limit end movement. For use with small rollers, the edges of the openings in the cage are swaged back at 20, Fig. 3. The cage has normally no contact with the races.
Patent GB-839973-A (GB)
Title: Apparatus for extracting components in gaseous form from solid fuel
IPC: E21B43/243
Filed: 1955-06-20
Abstract: 839,973. Distilling coal or shale in situ. WHARNCLIFFE, M. L. E. M., COUNTESS OF. Sept. 11, 1956 [June 20, 1955; Oct. 6, 1955], Nos. 17786/55 and 28526/55. Class 55 (2). Coal or shale is distilled in situ by apparatus comprising a chamber 2 open at one side and adapted to be sealed against a working face of coal or shale and provided with electric heating elements 11, a gas off-take 5, a pump 3, and gas outlet 7, the whole being mounted on a trolley 1 and movable to any desired position. The outlet 7 may be connected to a fractionating tower or condenser to recover crude oil from the gases. In modifications a number of chambers 2 may be connected to a common pump and the pump may be mounted on a trolley and connected by a flexible hose to the gas off-take of the chamber 2. Specification 701,100 is referred to.
Patent GB-902698-A (GB)
Title: Bovine obstetric appliances
IPC: A61D1/08
Filed: 1960-05-20
Abstract: 902,698. Veterinary appliances. COLBEAR, H. A. May 18, 1961 [May 20, 1960], No. 17844/60. Class 81 (2). An appliance for assisting calving comprises a frame 5, 6, 7, 8 having an abutment portion 1, 2, 3, 4, to be placed against the rear of the cow, and a winch 14 to the axle of which ropes may be attached. With this construction, since the pull of the ropes is taken through the frame 1, 2, 3, 4 and the rest of the appliance is securely fixed to this, it is held stably by the balanced traction and reaction when in use.
Patent GB-905980-A (GB)
Title: Process and apparatus for determining unbalance
IPC: G01M1/22
Filed: 1959-05-27
Abstract: 905,980. Measuring rotor unbalance electrically. AVERY Ltd., W. & T. May 27, 1959 [June 18, 1958], No. 18000/59. Class 40 (1). The dynamic unbalance of a rotor is determined by strain gauge resistors 5 mounted on the rotor bearings, forming adjacent arms of a differential bridge 4, fed with the alternating voltage from a carrier frequency oscillator 1 modulated by the output of a reference phase generator 3. The doublymodulated bridge unbalance signal is brought to a maximum by variation of the phase of the reference generator 3, thus determining the phase of the rotor unbalance, and is phase-rectified at 6 to give a signal indicative of the magnitude of the rotor unbalance. The transducer may be a differential transformer.
Patent GB-629469-A (GB)
Title: Cellulose styrene compositions and methods of making the same
IPC: C08L25/06
Filed: 1946-06-14
Abstract: A cellulose ether composition comprises polystyrene and, as a plasticizer, a liquid or solid dimer of a -methyl p-methyl styrene, or a liquid trimer of that compound, or a hydrogenated liquid dimer of that compound in which only the normally unsaturated side chain of the dimer is completely saturated with hydrogen, and the ratio by weight of the ethyl cellulose to the polymerized styrene is in the range of 77.5 to 2.5 parts of ethyl cellulose per 60 to 20 parts of polymerised styrene.  The plasticizer may be present to the extent of 20 to 40 per cent of the total weight of ethyl cellulose, polystyrene, and plasticizer. The ethyl cellulose may have an ethoxy content of 43.5 to 50 per cent, and the polystyrene may have a molecular weight of 60 thousand to 120 thousand.  The composition may be used as a moulding or coating composition and may be formed into electrical insulating materials.  The components may be mixed together and heated until solution or dispersion takes place, e.g. at 275-450 DEG  F., and the composition may then be placed in pans or calendered or milled and then cooled to room temperature.  It may then be comminuted to form a moulding powder or a mass suitable for extrusion.  Specifications 586,090, 606,085, [Group IV (b)], 613,219, and 617,342, [Group IV (b)] are referred to.