baber/WOPTO huggingface dataset:
Patent GB-671508-A (GB)
Title: Improvements in apparatus for preparing cementation gas
IPC: C01B3/36
Filed: 1950-03-29
Abstract: 671,508. Manufacture of carburizing gas. REGIE NATIONALE DES USINES RENAULT. March 29, 1950 [May 12, 1949], No. 7855/50. Class 55 (ii). An apparatus for the manufacture of a gas free from carbon dioxide, water vapour and free oxygen to be used for the carburizing or cementation of steel, consists of two vertical pipes connected near the top by a horizontal pipe, the assembly being mounted in a furnace, means being provided for filling charcoal into the pipes from the top and heating it to a temperature above the cementation temperature whilst a gas such as a coal gas-air mixture, charcoal producer or water gas is passed into one of the pipes through a bottom inlet, to flow up that pipe across the horizontal pipe and down to an outlet at the bottom of the other, each pipe having both an inlet and outlet at the bottom so that the flow may be reversed periodically. In the form shown, two pipes 1, each surmounted by a charcoal feed hopper 36, 37, are connected by a cross pipe 1<SP>1</SP>, the pipes and cross-pipe being located in a furnace 6 which keeps. the assembly at about 1050‹ C. Attached to the bottom of each pipe by a gland 7 is a tube 9 having lateral gas inlet and outlet connections 15 and 11 and housing a removable tube 3 carrying a grate 2 at its upper end on which the column of hot charcoal rests. Raw gas is passed alternately up through the grate and one of the tubes and down the other, the arrangement being such that it does not come into contact with cold charcoal and is not cooled in passing from one tube to the other. Ash is removed periodically by releasing a screw clamp 22 and lowering the grate. Specifications 471,828, 480,103, 481,797, [Group II], and 489,177 are referred to.
Patent GB-661774-A (GB)
Title: Improvements in ignition coils
IPC: H01F38/12
Filed: 1949-03-23
Abstract: 661,774. Ignition coils. MAUGHAN, G. H. March 22, 1950 [March 23, 1949], No. 7889/49. Class 38 (ii). Shrinkage in the higl and low tension windings e of an oil immersec ignition coil for an in ternal combustion engine is taken upby a coil spring h bearing against the bottom one g, of twc winding insulation plates d, g, and the bottom of the container k. The high tension winding is connected to a metal insert terminal j by a metal strip i and the spring h. A soft iron winding core c is carried by a sleeve b of the container cover a. In the Provisional Specification the container is of synthetic resin or plastic, the windings have a radio interference screen, and the cover and container have an oil seal.
Patent GB-1444208-A (GB)
Title: Process for preparing 1-tetrahydronaphthalone
IPC: B01J31/18
Filed: 1975-02-25
Abstract: 1444208 1-Tetrahydronaphthalone SUMITOMO CHEMICAL-CO Ltd 25 Feb 1975 [26 Feb 1974] 7923/75 Heading C2C 1-Tetrahydronaphthalone is prepared by oxidizing tetrahydronaphthalene in the liquid phase with molecular oxygen or a molecular oxygen-containing gas in the presence of a catalyst system comprising a chromium naphthenate and an alkyl-substituted pyridine compound having the formula wherein R 1 , R 2 , R 3 , R 4  and R 5 , which may be the same or different, are hydrogen or C 1  to C 5  alkyl, at least one being alkyl.
Patent GB-1482486-A (GB)
Title: Large aperture single-reflecting catadioptric system
IPC: G02B17/08
Filed: 1975-02-26
Abstract: 1482486 Catadioptric lenses CANON KK 26 Feb 1975 [26 Feb 1974] 7990/75 Heading G2J A large aperture, singly-reflecting, catadioptric lens, e.g. for use as an objective in an x-ray fluroscopic camera, comprises these three coaxial and axially spaced components: a convergent lens 1, a reflecting element 2 in the form of a negative. meniscus lens having its front and rear surfaces of different curvature with the front face being concave and the rear face being of larger radius of curvature and mirrored, and a field flattening lens 3. The convergent lens 1 may be a positive meniscus, concave towards the longer conjugate focus. The field flattening component 3 may comprise at least three elements, at least one of which is divergent. The aperture stop is shown at A.S. and a film 4 may be mounted in a support and case 5. The equivalent focal lengths F 1 , F 2 , F 3  of the components 1, 2, 3 respectively are preferably related to the focal length f of the entire lens by these inequalities:- 3À5f # F 1  # 4f; 1À2f # F 2  # 1À6f and 0 < F 3  # 2f. Numerical data are given for two Examples.
Patent GB-453535-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L47/14
Filed: 1935-03-15
Abstract: 453,535. Printing-machines. ADDRESSOGRAPH CO., and HARTLEY, E. C., 1200, Babbitt Road, Cleveland, Ohio, U.S.A. March 16, 1935, No. 8125. [Class 100 (ii)] Addressing - machirzes ; rotary machines ; tripping - arrangements.-In a machine for printing constant and variable matter on the main part and on one or more stubs of bills, insurance notices, &c., means are provided for feeding a web to cutting-mechanism from which the cut sheets are fed under a platen where they receive impressions from one of a number of elements moved successively into printing position, the platen, the sheet and web feeding mechanisms, and the cutting- mechanism being rendered inoperative when some of the elements are moved into position. The web is fed intermittently from a roll as described in Specification 369,980 and passes directly or through a printing-couple to a cutter 22, Fig. 1, where it is cut into sheets. The sheets fall on to belts 23, driven as in Specification 348,022, and are conveyed under the platen P where they are printed on by the elements D which are fed from a magazine M. The platen is actuated from a constantly-rotating shaft 28 and the mechanism includes a rocker 34, Fig. 4, carrying adjustable detector pins 35 which are adapted to be retained in raised position by tabs T on certain of the elements D. This results in holding a rocker 38 in position to engage a latch 39 on an arm 42 which is thereby held in position to disconnect a pawl 30 carried by a disc 32, secured to the shaft 28 from a stop 29 on a sleeve 28<1> loose on the shaft and arranged to actuate the platen. The arm 42 when latched by the rocker 38 disconnects a clutch 44 controlling the web-feeding mechanism, the web-printing device, the cutter 22, and the belts 23. Stop fingers 26 arrest the bills in different positions under the platen in order to enable impressions from the elements D to be made on the main part and on the stubs. The shaft 28 drives a shaft 58 through reduction gearing, the ratio of which is determined by the number of stubs to be printed, and the shaft 58 carries a cam 60 acting through levers 62, 64 on a pawl 52 arranged to connect together a sleeve 51, and a rod 50. The rod is reciprocated by an eccentric 48 on the shaft 28, and when connected to the sleeve actuates the feeding- mechanism for the elements D. After printing, the sheets pass to a printing-couple C of the type described in Specification 348,025. The sheets pass over a grooved roller and under a roller 105 Fig. 7, which is raised by a face cam 109. If no sheet is present the roller 105 falls and moves a shoulder 102 under a shoulder 101 on a frame 96 carrying the impression cylinder 90. The cylinder 90 and plate cylinder 89 are driven continuously and synchronously from the shaft 56, but are normally held out of contact by a cam 98. Another cam 116 controls the movement of stop fingers III and a clamp roller. Specification 392,612 also is referred to.
Patent GB-558189-A (GB)
Title: Improvements relating to excavators of the conveyor type
IPC: E02F3/24
Filed: 1942-06-16
Abstract: 558,189. Excavators. WILKINSONS (RUNFOLD), Ltd., and WILKINSON, H. A. June 16, 1942, No. 8217. [Class 68 (i)] In an excavator comprising a travelling frame supporting a shovel-wheel which delivers spoil to an endless conveyer, the shovel-wheel comprises a twopart drum, the two parts being mounted coaxially on a common axle, a set of digging shovels arranged in a circular row on each part of the drum, and a driving gear mounted on the axle between the two parts of the drum. A frame 10 is supported on a truck 12 and carries a shovel-wheel 14 and an endless conveyer comprising twin belts 18 of rubber etc.; the belts 18 may be replaced by dry-link chains or articulated troughs. The shovel-wheel comprises two drum-parts 20, 22, mounted at opposite ends of an axle 23 driven by a gear wheel 36 and supported in anti-friction bearings 26, 28, in a gear case 30; the drum-parts 20, 22, each carry a circular row of shovels 24, 26 and may be yieldably connected to the axle through safety clutches comprising friction discs 48, 52, and coiled springs 54. The drum parts also carry curved blades 62, 64, which extend beyond the sides of the truck 12 and deflect the spoil therefrom to the paths of the shovels. The leading edges 68 of the shovels are serrated, and in alternate shovels, which may be staggered in the two sets, such serrated edges' may be extended inwardly or outwardly or both. The truck 12 may be supported on two or four wheels or on endless tracks, the wheels or tracks on each side being separately driven for steering, as by reversible electric motors 96, 98, Fig. 41 and chains 104, 112, Fig. 2. The conveyer may be rockable about a shaft 94 on the truck, and be supported by ties 78. The shovel-wheel may be driven by an electric motor 120 through chain gearing 126, 132, while the conveyer may be driven by an electric motor at the head thereof. The machine may have a remote control comprising a portable switch box 134, Fig. 4, with four push-button switches 142 - - - 145 controlling the motors 96, 98, used in pairs for advancing, retreating or steering the machine, and a further pair of switches 146, 147, for starting and stopping the shovel-wheel respectively. If desired, a single motor may drive the shovel-wheel and the conveyer.
Patent GB-1449765-A (GB)
Title: Excavator tools
IPC: E21B3/02
Filed: 1974-02-22
Abstract: 1449765 Drilling tools POCLAIN 22 Feb 1974 [12 March 1973] 8274/74 Heading E1F A drilling tool includes an auger driven by a motor via a transmission incorporating a ram operable to superimpose a cyclic angular movement on the continuous rotation of the motor. In the embodiment shown, the tool is adapted to be suspended at a pivot 4 and includes a hydraulic motor 5 driving the auger shaft 16 via shafts 27, 12 which are respectively fast with plates 26, 23 interconnected by a doubleacting hydraulic ram 32 pivoted to eccentric pins 31, 24 on the plates. Plate 26 has a hub 39 received in a stationary sleeve 29 to which supply and return lines 19, 20 connect, the sleeve having arcuate grooves 42, 43, an annular groove 41 permanently connected to the. supply line 19 and to groove 42, and passages 37, 37a and 38, 38a, 38b communicating respectively with the ram via hoses 35, 36, the arrangement being that the rod end of the ram is alternately connected to the supply line via 37, 37a while the head end is alternately connected to the supply line via passages 38, 38a and to the return line 20 via passages 38, 38b, and groove 43. The auger may also be simultaneously subjected to axial vibrations. An external control valve may alternatively be used to regulate the operation of the ram instead of embodying the valve features in the sleeve 29 and hub 39. The hydraulic motor 5 may be driven by a pump via an adjustable speed-control restrictor. The frequency of the cyclic angular movement imposed by the ram may be varied by varying the number of each of the grooves 42, 43 in the sleeve 39.
Patent GB-659644-A (GB)
Title: Improvements in and relating to pick-ups for reproducing recorded sound
IPC: G11B3/14
Filed: 1949-03-26
Abstract: 659,644. Supporting gramophone pick-ups. BRITISH BROADCASTING CORPORATION and DAVIES, A. March 26, 1949, No. 8295. [Class 40 (ii)] The resonance of a pick-up arm, resulting from the combined effect of the mass of the arm and the restoring force on the stylus, is damped out by means of a weight suspended on a damped spring coupled to the pick-up arm. In one embodiment, Fig. 4, a weight 18 is secured to a leaf-spring 16 which has clamped to it a strip, or strips, of damping material 19. The components 16, 18, 19 may be mounted inside a U-sectioned pick-up arm 12, Fig. 5. In another embodiment, Fig. 6, the pick-up arm shaft 25 is extended beneath the bearing 13 and carries at its end a container 24 filled with a viscous fluid and having suspended therein by means of coiled springs 22, 23 a weight 18 provided with vanes 26.
Patent GB-228035-A (GB)
Title: Improvements relating to conveyors
IPC: B65G27/00
Filed: 1924-04-02
Abstract: 228,035. Ridgill, E. April 2, 1924. Jigging conveyers.-The conveyer trough is attached by a universal joint to the end l of a bar g which is pivotally mounted at h and connected at its other end k to a slide block i movable in a guide j on the cross-head f of a double-acting motor a. In a modification in which a singleacting motor is used, an auxiliary fluid-pressureactuated motor is provided for effecting the return movement of the bar g.
Patent GB-357166-A (GB)
Title: An improved veneer or plywood construction
IPC: C09J189/00
Filed: 1930-03-14
Abstract: An adhesive for joining wood plies is made from proteinous seed flour, caustic soda, and an alkaline-earth hydroxide, with or without carbon bisulphide or other sulphur compound.  The caustic soda may be replaced by potash or ammonia, or a weak acid salt such as sodium phosphate.  Examples given are : I, Soya bean flour, water, caustic soda, carbon bisulphide, calcium hydrate, waterglass, and copper sulphate; II, Soya bean flour, water, alum, caustic soda, and calcium hydrate; III, wheat flour, Portland cement, water, caustic soda, and waterglass.
Patent GB-611932-A (GB)
Title: Improvement in clip jewellery
IPC: A44C7/00
Filed: 1946-03-19
Abstract: 611,932. Clips. JELLINEK, M. March 19, 1946, No. 8462. [Class 44] [Also in Group VII] A combined spring jaw and adjustable screw clip comprises a body 10 having at its lower end a T-shaped lug 11, with its stem 13 at right angles to and extending away from the body 10. A pintle pin 14 extends through the stem 13, and a clip jaw 17 has eyes 18, 19 which encompass the ends of the pin 14. The slits determining these eyes are extended at 20 and 21 to form a tongue 22, which in the open position of the clip engages the outer face 23 of the lug 11, and in the closed position engages the top 24 of the lug. Since the jaw 17 is of springy metal, the tongue 22 when deflected during closure of the clip is biassed towards gripping position. An outwardly extending metal bushing 25 is fixed to the free end of the jaw 17 and has threaded through it a screw 26, having a gripping disc 27 at its inner end and an adjustment disc 28 at the other end.
Patent GB-1195481-A (GB)
Title: Improvements relating to Optical Lens Systems
IPC: G02B9/34
Filed: 1968-02-21
Abstract: 1,195,481. Optical objectives. OPTISCHE INDUSTRIE "DE OUDE DELFT" N.V. Feb. 21, 1968 [Feb. 22, 1967; June 30, 1967], No.8463/68. Heading G2J. An objective of focal length f, a relative aperture larger than 1:0À75 and a field angle of at least 13 degrees consists of (a) a front positive singlet I, (b) a positive meniscus doublet II, III, convex to the front, (c) a negative meniscus doublet IV, V, convex to the front and (d) a positive component having a convex front surface r 9  forming a negative air lens with the rear surface r 8  of the preceding element V, a rear surface r 13  with a radius of curvature not less than 2f a thickness d 9  + d 10  + d 11  + d 12  of at least 0À3f and an internal cemented surface r 10  of positive power and separating elements VI, VII, whose refractive indexes differ by at least 0À22, the rear element VII having a refractive index of at least 1À8. As shown a plane parallel plate VIII is provided behind the cemented doublet VI, VII and in another embodiment an additional plane parallel plate is cemented to the rear of doublet VI, VII. Optical data are provided for three examples.
Patent GB-350064-A (GB)
Title: A new or improved hair restorer
IPC: A61K8/92
Filed: 1930-03-17
Abstract: An ointment for use as a hair restorer consists of a mixture, preferably in the proportions stated, of vaseline 3 lb., beeswax 1 oz., olive oil 3 oz., green oil of elder 3 oz., and oil of eucalyptus 3 oz.
Patent GB-418347-A (GB)
Title: Improvements in devices for determining the position of moving aircraft at night
IPC: F41G5/12
Filed: 1934-03-19
Abstract: 418,347. Acoustic directional apparatns. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho- Slovakia, and CATASTA, R., 12, Schwarzenbergplatz, Vienna. March 19, 1934, No. 8584. [Class 118 (ii).] A telescope is set in accordance with angle indications received from a sound locator and transmits corrected readings to a searchlight or other apparatus. The readings from the sound locator set pointers on the telescope which is set by hand to the position indicated. The telescope is then moved independently of the received signals to locate the aircraft and as it is moved indications of its position are sent to a searchlight, the telescope being uncoupled from the receiving equipment during this independent movement. As shown in the Figures the receiver comprises a combined elbow telescope and periscopic telescope. The altitude and lateral angles are received on receivers 45 and 23b respectively and the periscopic telescope is set accordingly by means of worm spindles 43 and 23 so that the observer at eyepiece 20<a> is able to locate the aerial target. The coupling pins 32 and 41 are then released uncoupling the periscopic telescope so that the observer at elbow telescope eyepiece 29 can effect accurate sighting and can follow the target by operating hand wheel 30, the altitude and lateral angles being transmitted to the searchlight by transmitters 31 and 46 respectively.
Patent GB-1287643-A (GB)
Title: Electric timepiece
Inventor: CHOPARD REMY
IPC: G04C3/10
Filed: 1970-02-23
Abstract: 1287643 Clocks and watches EBAUCHES SA 23 Feb 1970 [17 March 1969] 8615/70 Heading G3T The matter described is substantially identical to that of Specification 1287642 but the claims relate to the use of a gauge, substituted for a ratchet wheel, in setting the elastic loading of a retaining pawl and hence the relative phasing of the driving and retaining pawls.
Patent GB-287925-A (GB)
Title: Improvements in or relating to the direct production of iron or steel
IPC: C21B13/00
Filed: 1928-03-21
Abstract: 287,925. Pierson, H. D., Sanberg, J. J. A. G., and Dusseldorp, I. C. J. van, (trading as Heldring & Pierson), Ledeboer, A. E. M., Houten, J. L. van., Willemsteyn, M., Jagt. B. G. H. van der, Schepper, A. J. A. I. de, Schepper, J. G. H. I. de, Moliere, T. B. G., Kempkers, H., Hoos, J. C., Colinet, J. F., Ellerman, J., Skene, R. A. A. R. von, Hennekom, K. H. H. van, Gallas, Dr. E. C., P., Naamlooze Vennootschap C. Swarttouw's Stuwadoors Maatschappij and Hyde, S. W. B., (trading as Staal-Syndicaat Dr. Ledeboer). March 30, 1927, [Convention date]. Extracting; purifying.-In a method of producing iron or steel by reducing iron ore and by separating the iron in a molten state, the furnace in. which the operation takes place is heated by a surface combustion burner of a type capable of producing a combustion gas of sufficiently high temperature and containing practically no free oxygen so arranged that the combustion products pass beyond the zone burner and have reached a condition of complete or nearly complete combustion before coming into contact with the material in the furnace. In a modification, sponge iron prepared by any known process is melted in the same way in the furnace.
Patent GB-590016-A (GB)
Title: A hand-operated inking roller for use with stencils and the like
IPC: B41L27/04
Filed: 1945-04-09
Abstract: 590,016. Inking-apparatus. STIRLAND, S. C. (trading as C. S. D. ENGINEERS). April 9, 1945, No. 8709. [Class 100 (ii)] A hand-operable inking roller comprises a frame member 1, with a handle 24, which carries an inking roller, consisting of a rigid core 4 covered with sponge rubber or other absorbent resilient material 5, and an ink container comprising a stationary outer tank 7 having a longitudinal slot 13 entered and substantially fully occupied by a peripheral portion of the roller, and a rotatable perforated cylinder 8, housed in the tank 7, and contacting the roller by which it is rotated. The tank has a filling opening 15, closed by a screw plug 16, and the ink passes from the tank through openings 17 in one end of the cylinder. The frame limbs 3 fit into diametral grooves 12 in the ends of the tank 7, the tank being secured to them by a spindle bolt 9 passing through slots 10 which allow adjustment towards and away from the roller. The roller is mounted in the frame by spindles 6 pressed apart by a spring 23. The edges of the slot 13 are chamfered or bevelled off to correspond with the curvature of the roller.
Patent GB-272645-A (GB)
Title: Improvements in and relating to foot supports
IPC: A43B7/22
Filed: 1926-04-01
Abstract: 272,645. Hinder, P. G. H., and Hinders, Ltd. April 1, 1926. Foot-arch supports.-A foot-arch support comprising a metal plate 1 having a leather covering 1<a> is provided with a thin bearing plate 3 engaging slidably beneath the forward end of the plate and connected therewith by a shank 2 bent as shown. The plate 3 may be formed integral with the shank 2 or may be provided with slots detachably engaged by tongues on the shank.
Patent GB-904178-A (GB)
Title: Absorption refrigerating system
Inventor: MINER ROBERT G
IPC: F25B15/06
Filed: 1961-03-10
Abstract: 904,178. Refrigerating. TRANE CO. March 10, 1961, No. 8918/61. Class 29. [Also in Group XXIX] In a continuous cycle absorption system, preferably of the type using a saline solution as the absorbent and the solvent as the refrigerant, the generator 14 is heated by liquid circulated therethrough and through a heat source 88 by a pump 86 and, at periods of reduced load, spent liquid is recirculated to the generator without passing through the heat source. As shown, a change in load is detected by a thermal element 94 responsive to the temperature of fluid chilled by evaporator 16 and this controls through an air-pressure system (see Group XXIX) a modulating valve 87 controlling the proportions of liquid drawn from the heat source 88 and the recirculating pipe 89 by-passing the heat source. Should the liquid temperature at the inlet of pump 86 become excessive, a thermal element 104 actuates control 103 to operate valve 87 so that it is closed to flow from the heat source. U.S.A. Specification 3,005,318 is referred to.
Patent GB-1111026-A (GB)
Title: A process for the production of acrylonitrile polymers
Inventor: SULING CARLHANS
IPC: D01F6/18
Filed: 1967-02-24
Abstract: A solution of an acrylonitrile polymer is produced by polymerizing acrylonitrile in an organic solvent for polyacrylonitrile, at a temperature of from + 10 DEG  to - 68 DEG  C. in the presence of 0.1 m.mol. to 0.1 mol., per mol. of monomer, of an alkali metal salt of an aliphatic or cycloaliphatic sulphonamide of the formula <FORM:1111026/C3/1> wherein M represents Li, Na, K, Rb or Cs, R1 represents an alkyl or cycloalkyl radical and R2 represents an alkyl radical.  Specified salts are those of N-methyl, N-isopropyl or N-isobutyl methane sulphonamide, N-methyl n-butane sulphonamide, N - n - propyl ethane sulphonamide, N-methyl cyclohexane sulphonamide and long-chain aliphatic sulphonamides.  Suitable solvents are dimethyl formamide and dimethyl sulphoxide.  In examples, dimethyl formamide solutions of polyacrylonitrile are produced using potassium N-methyl or N-isobutyl methane sulphonamide or lithium N-isobutyl or N-isopropyl sulphonamide. The catalyst is deactivated with HCl or toluene sulphonic acid.