baber/WOPTO huggingface dataset:
Patent GB-135729-A (GB)
Title: Improvements in Screw Stoppers for Petrol-tins and other Vessels.
Inventor: SAUNDERS GILBERT
IPC: B65D55/16
Filed: 1919-03-04
Abstract: 135,729. Saunders, G. March 4, 1919. Stoppers, connexions to prevent loss of.-Relates to the type of closure for petrol cans &c. in which a screw cap or plug is hinged to a ring surrounding the neck of the can and permanently connected thereto. According to the present invention, the cap &c. is fitted with a spring hinge to retain it in the open position. In the arrangement shown in Fig. 2, the cap b is hinged by a lug b<1> to a post c<1> carried by a ring c which screws, on the lower part of the neck a. A coil or other spring f bears on a flat c on the lug b<1> so as to retain the stopper in position when open. The upward, movement of the ring c is limited by a stud d, a collar fixed to the neck, or an equivalent device. Instead of screwing on the neck, the ring c may be pressed upwards by a spring and may be retained in a raised position by a catch.
Patent GB-988378-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B25/02
Filed: 1962-02-12
Abstract: 988,378. Two-stroke engines; motor power plant. E. E. CHATTERTON. May 10, 1963 [Feb. 12, 1962; Aug. 10, 1962], Nos. 5333/62 and 30754/62. Headings FIB and F1Q. The expansion ratio of a fuel injection engine is greater than the compression ratio such that at the end of the expansion period the pressure in the working cylinder is below that of the charging air, the inlet port opening before the exhaust port. The commencement of compression is delayed by holding open the exhaust valve 30 after the inlet ports have closed. The excess air drawn into the cylinder serves to cool the cylinder and a portion is forced out with the exhaust gases through the exhaust valve 30 to an after-burner chamber 38 in which additional fuel is burned, the combustion gases passing to a power turbine 47 on an output shaft 50. Power may be derived from both the engine and turbine shafts, which may be coupled together, e.g. through a fluid coupling; alternatively the engine may serve solely as a generator of gases for the turbine. A valve 37 in the exhaust pipe may be partially closed at low outputs to maintain a back-pressure at the exhaust port so that the compression pressure in the cylinder remains above the ignition limit. In an opposed piston engine, the exhaust is controlled by a suitably timed piston.
Patent GB-653327-A (GB)
Title: Oil-insoluble lubricant
IPC: C08K3/04
Filed: 1948-02-23
Abstract: An oil-insoluble lubricant or hydraulic fluid comprises an oily acrylonitrile-multiolefine copolymer and carbon black, at least a major portion of which is acetylene black.  The multiolefines are di- or tri-olefines with, for example, 4 to 12 carbon atoms such as butadiene, isoprene, 2,3-dimethyl butadiene-1,3, myrcene, allo-ocimene, and 2-methyl pentadiene, and are prepared by an emulsion copolymerization process according to Specification 625,572 in which mercaptans are used.  1-20 per cent of acetylene black with 80-99 per cent copolymer may be used, a preferred composition yielding a smooth grease, being 12 per cent acetylene black and 88 per cent copolymer, the latter comprising 76 per cent butadiene and 24 per cent acrylonitrile.  Hydrogenation of the copolymer oil yields a product of improved high temperature stability.  Oiliness and extreme pressure additives, and antioxidants such as phenyl a -naphthylamine and di-tertiary butyl paracresol may be included. Specification 601,224 also is referred to.ALSO:An oil-insoluble lubricant comprises an oily acrylonitrile-multiolefine copolymer and carbon black, at least a major portion of which is acetylene black. The multiolefines are di- or tri-olefines with for example 4 to 12 carbon atoms such as butadiene, isoprene, 2,3-dimethyl butadiene-1,3, myrcene, allo-ocimene, and 2-methyl pentadiene, and are prepared by an emulsion copolymerization process according to Specification 625,572, [Group IV (a)], in which mercaptans are used.  1-20 per cent of acetylene black with 80-99 per cent copolymer may be used, a preferred composition yielding a smooth grease being 12 per cent acetylene black and 88 per cent copolymer, the latter comprising 76 per cent butadiene and 24 per cent acrylonitrile. Hydrogenation of the copolymer oil yields a product of improved high temperature stability.  Oiliness and extreme pressure additives and antioxidants such as phenyl a -naphthylamine and di-tertiary butyl paracresol may be included.  Specification 601,224, [Group IV (a)], also is referred to.
Patent GB-787494-A (GB)
Title: Improvements in or relating to the bonding of metal in laminated products
Inventor: CAPEWELL GORDON ARTHUR
IPC: B32B15/08
Filed: 1956-02-21
Abstract: 787,494. Laminated materials. BAKELITE, Ltd. Feb. 21, 1956, No. 5354/56. Class 140. A method for making a laminated product comprising sheets of fibrous material impregnated with a synthetic resin and by an inner layer or layers one or more metal sheets or foils comprises building up the stack of the constituent sheets prior to consolidating it with heat and pressure so that upon each side of the metal component or each of the metal components there is a layer of adhesive for the metal next thereto and a layer comprising a melamineformaldehyde or melamine/urea-formaldehyde resin between the adhesive for the metal and the adjacent fibrous sheet material. Sheets or foils of aluminium or copper may be used. As adhesive for the metal there may be used a polyvinyl butyral resin in conjunction, if desired, with a phenol formaldehyde resin. The adhesive for the metal may be applied to the metal or to a fibrous sheet impregnated with melamine-formaldehyde resin or it may be interposed as an unsupported film. The fibrous sheets may consist of paper or woven or felted sheets of cotton, nylon or glass fibres. The synthetic bonding resin for the fibrous material may comprise phenol formaldehyde resins, melamine formaldehyde resins or urea-formaldehyde resins. The melamine formaldehyde layer may be formed by applying it in the form of a solution to metal which has been coated with adhesive; or it may be coated on to an unsupported film of adhesive for the metal, or carried on a fibrous sheet impregnated therewith. Examples disclose the formation of laminated products by assembling the layers and then compressing them at elevated temperatures.
Patent GB-851020-A (GB)
Title: Improvements in or relating to circuit arrangements for generating currents of predetermined waveform
IPC: H03B5/10
Filed: 1957-02-18
Abstract: 851,020. Cathode-ray tube circuits. FERNSEH G.m.b.H. Feb. 18, 1957 [Feb. 18, 1956], No. 5510/57. Addition to 840,697. Class 40(7). [Also in Group XXXV] The circuit arrangement for producing focus correction currents disclosed in the parent Specification is modified whereby the switching means are arranged to be' self-excited and to have synchronizing signals applied thereto. The circuit arrangement is basically as shown in Fig. 2 of the parent Specification such that a coil 7 wherein it is desired to produce focus correcting currents is effectively connected to the centre tap of a transformer 3 by way of a further transformer 5. A secondary winding 11 on the transformer 3 is arranged to feed two phase shifting circuits 12, 14 and 13, 15 which circuits are provided to bring the grid voltage of each of the switch valves 1, 2 into phase with its anode voltage such that the valves 1, 2 are selfexcited, the control voltages appearing on the control grids being sinusoidal. An adjustable resistor 16 is provided to equalise the amplitudes of alternate pulses. The circuit is caused to operate in synchronism with the deflection of the electron beam by means of synchronising pulses applied by way of a terminal 18 to the control grid of the valves 1, 2. The valves 1, 2 may be replaced by other suitable switching devices and the form of the focus correcting current may be altered by the appropriate choice of the inductance of the winding 3 and the capacitance of the capacitor 4.
Patent GB-1198173-A (GB)
Title: Improvements in and relating to Pneumatic Tyres
IPC: B60C19/00
Filed: 1968-02-02
Abstract: 1,198,173. Pneumatic tyres. MICHELIN & CIE (Compagnie Generale des Etabs. Michelin). 2 Feb., 1968 [6 Feb., 1967], No. 5519/68. Heading B7C. [Also in Division G1] A pneumatic tyre has a pseudo-camber (i.e. a characteristic of a tyre which causes the vehicle on which the tyre is mounted to he subjected to a force the effect of which is analogous to the effect caused by wheel camber) such that when mounted on an axle of a vehicle travelling at 10 km/hr. at tyre design load and pressure on level ground it gives rise to a thrust or a pull on the axle of not more than 6% of the design load of the tyre and is provided with an indication of the orientation of the tyre on the axle required to produce the thrust or pull. A tyre may be provided with a pseudo-camber by introducing asymmetry into the tyre e.g. by making the tread conical or by offsetting the crown reinforcement plies relatively to the tread. The pseudo-camber of a tyre may be measured using the apparatus shown. Two pneumatic tyres 10, 12, of which the pseudo-camber of one is known, and is preferably nil, are fitted on wheels attached to semi-axles 14, 16. Semi-axle 14 is connected to a cylinder 18 and semi-axle 16 is connected to a plunger 20, provided with a pointer 26, which is registered against a scale 28, and operable against two calibrated springs 22, 24 mounted between the plunger and cylinder.
Patent GB-999324-A (GB)
Title: Improvements in or relating to dispensers for flowable materials of cream-like consistency
Inventor: RAYNER ADRIEN PATRICK
IPC: A23G3/02
Filed: 1963-02-11
Abstract: 999,324. Dispenser for flowable materials. METAL BOX CO. Ltd. Oct. 1, 1963 [Feb. 11, 1963], No. 5525/63. Heading F1R. A dispenser for materials of cream-like consistency comprises an open topped container 1 and a plunger provided with a dispensing; orifice 8. The plunger includes a body 5 and an inner end wall 6 so that on downward movement of the plunger cream passes through a dispensing channel 7. A skirt 15 depends from the bottom of the plunger and a sealing member 16 is formed on the skirt. A bead 19 serves as a guide for the plunger in the container 1. The bottom of the container is shaped to conform with the wall 6 of the plunger, the skirt 15 being received in a recess 3.
Patent GB-600602-A (GB)
Title: An improved manufacture of resin-containing fibrous sheet or board
IPC: D21H17/48
Filed: 1943-04-07
Abstract: Fibre board containing up to 60 per cent by weight of synthetic resin is obtained by adding the resin constituents, e.g. phenols, cresols and aldehydes or ketones, preferably with an alkaline catalyst, and hydrolyzed protein, to paper pulp, allowing the mixture to stand to start the initial condensation, and adding an acid catalyst to complete polymerisation to the "B" stage.  The pulp is then washed, filtered and sheeted under heat and pressure to cure the resin.  In an example 100 parts cresylic acid containing 60-65 per cent metacresols, 34 parts paraformaldehyde and 5 parts partially hydrolized rice protein are mixed, allowed to stand and added to pulp in the beater.  The mixture is allowed to stand for further 3-4 hours whereupon 2 parts ortho phosphoric acid are added with stirring; after about 60 mins. the mixture is washed and filtered and compressed to sheet form in known manner.
Patent GB-112220-A (GB)
Title: An Improved Mode of "Hot Process" Galvanizing Iron and Steel Plates, Sheets and the like.
IPC: C23C2/02
Filed: 1917-04-20
Abstract: 112,220. White inch Galvanizing Co., and Ordidge, R. E. April 20, 1917. Distempers.-A mixture of lithopone, Paris white, and pulp size is applied to one side of a metal plate, to prevent that side from being galvanized when the plate is passed through galvanizing apparatus.
Patent GB-1400383-A (GB)
Title: Carriage assembly for magnetic disc information storage apparatus
IPC: G11B5/55
Filed: 1974-02-07
Abstract: 1400383 Supporting magnetic heads INTERNATIONAL BUSINESS MACHINES CORP 7 Feb 1974 [5 March 1973] 05604/74 Heading G5R A carriage 10 moves on bearings 16a, 16b, 18a, 18b along a cylindrical support 20 so as to move one or more magnetic heads 14 radially across one or more magnetic discs 38, the carriage 10 having two outboard bearings 24, 26 of which one 24 engages a fixed guide 28 and the other 26 engages a resilient loading means 30 which acts to press the first bearing 24 against the fixed guide 28.
Patent GB-805988-A (GB)
Title: Improvements in or relating to electrical simulators
Inventor: MOTHERSOLE PETER LEONARD
IPC: H04N17/00
Filed: 1957-02-20
Abstract: 805,988. Testing television receivers. MULLARD Ltd. Feb. 20, 1957, No. 5736/57. Class 40 (5). A device for simulating the effect of an aircraft on signals received by a television receiver comprises a mixer 1 to which the desired input frequency, e.g. 45 mc/s. is applied together with a signal from a local oscillator 2 of 60 mc/s. The output of 15 mc/s. is amplified at 3 and applied via a delay line 4 to an amplifier 6 and also via a resistive parallel path 5 to the amplifier 6, thus providing two signals which simulate the direct and reflected signals. The output of the amplifier 6 is applied to a mixer 7 which also receives an output from the local oscillator 2 to provide an output signal of 45 mc/s. for application to the receiver under test. In order to simulate the effect of " flutter " by varying the phase difference between the two signals, the frequency of the local oscillator is varied by a reactance valve 10 and sweep generator 11.
Patent GB-588871-A (GB)
Title: Improvements relating to buttons for use on wearing apparel
IPC: A44B1/34
Filed: 1945-03-08
Abstract: 588,871. Buttons. NUTT, K. E. March 8, 1945, No. 5786. [Class 43] A two-part button for use on wearing-apparel consists of a front part comprising the head 1 with a stem 2 having a conically enlarged free end 3 and an apertured rear part 5 of resiliently distortable material e.g. rubber, synthetic resin, or plastic, which is forced over the free end 3 of the front part to removably secure the two parts together. The head of the button is stepped at 6 to raise it slightly from the garment material 4.
Patent GB-766632-A (GB)
Title: Improvements in or relating to roof support devices for roofs in underground mines
IPC: E21D15/60
Filed: 1953-03-03
Abstract: 766,632. Mine roof supports. MUSCHAMP, N. J., and COWLISHAW, F. Feb. 25, 1954 [March 3, 1953], No. 5829/55. Class 20(2) In a mine roof support comprising chocks 13, 14 adapted to be held on inclines 8 in roof engaging position by triggers 17 the chocks are released by a cam 31 engaging the triggers and operated by a lever 28 movable in a horizontal plane. A chain may be attached to the end of the lever. The cam is mounted on a pivot. 32 and the lever passes through an aperture in the cam and engages a roller 35 on the cam. The triggers 17 have crossbars 20 which engage behind abutments 21 in the operative position and abutments 26 in the inoperative position. In a modification there are two pairs of chocks operated by two levers 47, 48, Fig. 11, and links 49, 50 leading to a common shackle 52. For high roofs the support may be mounted on vertical posts and in Fig. 10 (not shown) the upper and lower laps of a belt conveyer pass. between the posts with the upper lap moving on rollers mounted in cross-bars on top of the posts. Specification 684,403 is referred to.
Patent GB-909992-A (GB)
Title: Improvements in or relating to electro-mechanical transducers
Inventor: VANDERLYN PHILIP BARNET
IPC: H04R11/12
Filed: 1958-02-22
Abstract: 909,992. Stereophonic pick-ups. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 3, 1959 [Feb. 22, 1958], No. 5831/58. Class 40 (4). A longitudinal pivoted stylus carrying armature is embraced by two saddle-back coils the magnetic axes of which are perpendicular to each other and to the axis of the armature. As shown in Figs. 1 and 2, a permanent magnet armature 1, mounted flexibly at one end in a rubber bush 6 contained inside a cylindrical or U-shaped yoke 15, carries a stylus 5 on an arm 4. A coil former 7 of magnetic material fits into the end of the yoke 15 and has reduced end portions 14 slotted at diametricallyopposed points so that the saddle-back coils may have portions 8 and 9, and 10 and 11, which are inside the former and parallel to its axis while being wound outside round only half a circumference. The surface vector integral of one coil is directed along axis x-x while the other is directed along the axis y-y. The construction shown in Figs. 3 and 4 comprises a ring-shaped yoke 21 with a diametral bore in which lies a permanent magnet 17 with a stylus 19 on an arm 18. A mounting plate 25 is screwed to the yoke 21 at 28 and 29 and has a square aperture 26 so that a post 30, screwed by a slotted flange 32 at 33 and 34 to the yoke, passes upwards through the yoke and plate. The post 30, which has stiffening ribs 35, is apertured to mount a flexible diaphragm 20 pivotally supporting the magnet 17 and stylus arm 18. An upturned lug 27 on the plate 25 passes a screw 36 threaded in the post 30 so that the post may be strained to tilt the magnet about an horizontal axis for purposes of alignment. A coil former 23, as described for Figs. 1 and 2, slides in a bore in the yoke and is secured by a spring arm 37. As applied to both embodiments, the yokes may be the permanent magnets. Return paths for flux, including the coil formers, may be of soft magnetic material. To decrease eddy currents laminated constructions or ferrite material may be used. To decrease the mass of the armature a low density magnetically hard ferrite may be used. The armature may be damped.
Patent GB-163508-A (GB)
Title: Improvements in and relating to supporting devices for sliding doors and the like
IPC: E05D15/06
Filed: 1920-02-26
Abstract: 163,508. Dowald, A. Feb. 26, 1920. frame rollers.-Relates to ball-bearing frame rollers for sliding doors &c. An overhung integral frame f . Fig. 1, is secured to the door and. has a recess m for the ball b and the lateral sets of bearing-balls c, the recess being closed by a plate h. A detachable casing f<1>, Fig. 9, may be provided for the roller b and its bearings. Various forms of roller may be used.
Patent GB-942718-A (GB)
Title: Improvements relating to heat-insulated pipes
IPC: F16L59/15
Filed: 1962-02-15
Abstract: A heat-insulating lightweight concrete for encasing a pipe consists of in percentages by volume 30 to 50 of pumice, expanded clay or porous lava having a grain size of 10 to 50 mm. and 15 to 25 of the same material having a grain size up to 10 mm., 10 to 25 of flakes of polystyrene, cork or a cellular plastic, 10 to 22 of cement, and up to 5 of fibrous glass, asbestos, wool or wood.
Patent GB-686782-A (GB)
Title: An improvement in or relating to variable speed gear boxes
IPC: F16H3/08
Filed: 1950-03-09
Abstract: 686,782. Change-speed gearing. BROWN & SONS (HUDDERSFIELD), Ltd., D., and TAYLOR, A. June 11, 1951 [March 9, 1950], No. 5908/50. Class 80 (ii). Countershaft gearing giving eight forward and two reverse speeds comprises five loose gears b, f, m, n, p, in constant mesh with gears d, h, i, j, k fast on the countershaft e, a double clutch member c to connect either of gears b, to the input shaft a, a double clutch member r to connect either of gears f, m to the output shaft g, a double clutch member s to connect either of gears n, p to the shaft g, a gear t fast on shaft e and in constant mesh with a gear u fast on a reversing shaft v, and a gear w splined on shaft v and engageable with a gear y fast on the clutch member s. The shaft e can thus be driven from shaft a at either of two speeds by means of the clutch member c, and can drive the shaft g at any one of three forward speeds by means of the clutch members r, s and reversely by engaging gear w with gear y with the clutches r, s in neutral. A seventh forward speed is obtained by clutching gear b to shaft a and gear f to shaft g, and an eighth by clutching gear f to both shafts a and g.
Patent GB-306828-A (GB)
IPC: A42C1/02
Filed: 1929-02-23
Abstract: 306,828. Brecht, E., and Fugmann, R., (trading as Brecht & Fugmann). Feb. 25, 1928, [Convention date]. Bodies, felting.-Hat bats are felted, preliminarily or completely, between inner and outer cones which have relative rotary movement, internal rarefaction being maintained at least until the outer cone is positioned. A twin apparatus is shown, comprising inner cones b, perforated and resting on rings c, co-operating projections, and grooves being provided on the ring and cone to prevent relative motion. Each ring c is secured to a spindle g supported by a thrust bearing and provided with an arm n which can be oscillated by an eccentric on a driving shaft r. A corresponding pair of outer cones k are counterbalanced by weights o and guided so that they can move only vertically for insertion and removal of work. The rings c oscillate in the top plates of chambers e, in which rarefaction can be regulated by throttle valves. A valve-controlled steam pipe in each chamber terminates in a perforated ring in the plane of the lower edge of the inner cone. In operation, a cone b on which a bat has been formed in an air current, is positioned on a ring c. The chamber e is opened to exhaust and the corresponding outer cone k lowered into position. The suction may then be cut off while the inner cone is oscillated with or without the application of steam. When the operation is complete, the bat may be cooled, if desired, by sucking cold air through the cones and bat before lifting the outer cone for removal of the work.
Patent GB-657804-A (GB)
Title: Improvements in or relating to folding chairs
IPC: A47C4/14
Filed: 1949-03-04
Abstract: 657,804. Seats. SILVER & EDGINGTON, Ltd., (trading as EDGINGTON (SILVER & EDGING- TON, Ltd.), B.), and ATKIN, A. E. March 4, 1949, No. 6031. [Class 52 (ii)] A folding chair comprises a seat and two rear legs pivoted to two members 9 which form the back portion and the front legs 10, extension of the rear legs 20 beyond the pivots being adapted to engage shoulders or projections on the seat when in operative position. The seat which comprises side members 14, cross slats 16, and cross member 15, is pivoted at 17 and is provided with notches 18 and shoulders 19 against which the rear leg extensions engage. The back portion members 9 are provided with slats 13 and stops 24 against which the seat abuts when the latter is in folded position.
Patent GB-253050-A (GB)
Title: Improvements in hand-stamps
IPC: B41K1/10
Filed: 1926-03-03
Abstract: 253,050. Garland, E. S. March 3, 1926. Hand-stamps. - In hand-stamps of the kind comprising a series of flexible type-carrying bands c, the bands are secured in adjusted position by - means of a frame h arranged to slide longitudinally of the stamp. The frame h consists of a U-shaped strip of metal provided with a slot i to fit over the types aligned in printing position, and with other slots k, l slidably engaging extensions m of the shaft g, on which are arranged the usual drums f over which the bands c pass, and engaging also extensions n of the usual rod e forming an abutment for the row of types in printing position. Projections o are provided for manipulating the frame.
Patent GB-563073-A (GB)
Title: Improvements in and relating to tubular condensers, heat exchangers and like apparatus
IPC: F28G9/00
Filed: 1943-04-15
Abstract: 563,073. Cleaning tubes. WHESSOE FOUNDRY & ENGINEERING CO., Ltd., and GRANT, A. G. April 15, 1943, No. 6050. [Class 99 (ii)] The tubes of heat exchangers are flushed externally with separate streams of liquid by providing a plate 4 below the upper header 3 to form one or more compartments to which cleaning liquid is supplied, passing therefrom through openings 4a around the tubes. The openings may be annular or may be formed by notches in holes which fit the tubes.