baber/WOPTO huggingface dataset:
Patent GB-636776-A (GB)
Title: Improvements in inflatable dinghies
IPC: B63C9/02
Filed: 1947-12-01
Abstract: 636,776. Inflatable dinghies. WYLLIE, S. S. Dec. 1, 1947, No. 31742. [Class 113 (ii)] In an inflatable dinghy comprising superimposed subsidiary and main peripheral inflation chambers 2, 1, surrounding an inflatable bottom, and a plurality of upwardly bowed self-supporting inflatable tubular components 6 lying transversely of the dinghy and joined at their ends to the marginal edge of the subsidiary peripheral inflation chamber 1, a flexible cover 10 extends over and is supported by the upwardly bowed components 6 and extends to the marginal edge of the chamber 2. In the embodiment shown in Fig. 2, two upwardly-bowed components 6 are spaced apart and are connected by flexible cables 7 to the chamber 2. In a further embodiment two upwardly-bowed components are disposed at right angles and intersect at their mid-points, being joined at their ends to the chamber 2.
Patent GB-1235327-A (GB)
Title: Reflex-reflectors
IPC: G02B5/128
Filed: 1968-07-03
Abstract: 1,235,327. Reflective markers; coating apparatus. NIHON KOKEN CO. Ltd. and T. YAMAMOTO. 3 July, 1968 [5 July, 1967; 18 Oct., 1967], No. 31798/68. Headings B2E and B2L. A flex-reflecting device comprises microspherical lens elements bonded to a substrate by a bonding agent and covered by a layer of transparent synthetic resin, the outer surface of which is substantially flat, in which substantially every lens element comprises a central transparent glass microsphere of diameter 25-110 microns and refractive index of from 2.0 to 2.5, and covered by a substantially concentric shell of a transparent synthetic resin of refractive index from 1.40 to 1.55, the hemisphere of each lens element adjacent the substrate having an internally reflecting coating on each concentric shell. The coating on the central microspheres may be of polymethylmethacrylate of refractive index about 1.45 or an epoxy resin having a refractive index of 1.50-153. More than one coating may be applied if necessary. A reflective coating is then applied to the whole of the surface of the coated bead by electroless coating or by a vacuum evaporation technique. In constructing the reflective elements a base such as an iron plate, a sheet of film, a fabric, or a paper sheet, which may have at the upper surface a heat-sensitive adhesive, carries a layer of bonding agent into which the reflective coated beads are embedded such that half of each element is exposed. The reflective coating may then be removed from the exposed half and an overcoating applied of a transparent synthetic resin forming a surface layer which is substantially flat. A primer may be applied to the base before application of the bonding layer. The surface overcoating layer may be applied in two parts, the first being up to the level of the outermost portion of each lens element, while the second forms the flat exposed surface. The overcoating layer may be of a weather-resistant, transparent synthetic resin or it may be coloured. The concentric synthetic resin shell on each lens element may be of thickness 3-5 microns. The same resin may be used for over-coating the front surface as is used to form the concentric shell on each lens element. An apparatus for coating glass beads comprises a bulb-shaped drum 31 mounted on a driving shaft 32 which is horizontally supported and connected with a pulley 34 to a prime mover. The drum is provided with an opening 36 towards which a nozzle 37, for spraying synthetic resin solution, is directed. In use the drum may be heated to a temperature of 100 to 150‹C. and rotated so that the glass beads move along the inner peripheral wall to the top and then fall in a cavity in a stream through which the synthetic resin coating solution is sprayed from the nozzle.
Patent GB-1109175-A (GB)
Title: Improvements in or relating to drip feed apparatus
Inventor: PHILLIPSON ALAN
IPC: A61M5/00
Filed: 1964-08-05
Abstract: 1,109,175. Automatic feed control. DECCA Ltd. July 26, 1965 [Aug.5, 1964], No. 31863/64. Heading G3R. The passage of each drip in a drip feed apparatus is detected by a photo-cell the output of which is integrated to produce a signal which is compared with a desired drip rate signal so that any difference is effective to correct the rate of drip. As applied to blood transfusion apparatus on a wheeled stand, a glass bottle of blood having an air vent is supported in an inverted position so that blood passes to a dispenser through a filter, a drip chamber having transparent walls, and a tube which is squeezed by a motor operated clamp. Light is reflected backwards and forwards to cover the cross-section of the drip chamber so that drops of blood, however they fall, produce output pulses from a photo-cell which are amplified, squared, and integrated to produce a direct voltage representative of the rate of drip. This voltage is compared with a manually selected voltage representing a desired rate of drip and any error is effective to control a switch and operate the reversible motor which corrects the rate of drip by adjustment of the clamp in the appropriate sense. A drip counter and rate indicator are provided and an alarm may be operated when drip rate or amount of blood in the bottle fall below predetermined values. Control of water drip in a similar manner is referred to.
Patent GB-1340299-A (GB)
Title: Agents for regulating plant growth
IPC: C07D317/56
Filed: 1972-07-07
Abstract: 1340299 Plant growth regulation BAYER AG 7 July 1972 [10 July 1971] 31891/72 Heading C1B [Also in Division C2] Plant growth regulating compositions and methods have as active ingredient a safrole derivative of the formula in which R is alkyl or alkenyl optionally substituted by halogen, an O,O-dialkyldithiophosphoric acid radical, alkyldithionylphosphonic acid O-alkyl ester radical and/or optionally substituted arylmercapto, or R is
Patent GB-777223-A (GB)
Title: Apparatus for use in the moulding of concrete beams and similar structures
Inventor: SIMS LESLIE JAMES
IPC: B28B7/24
Filed: 1953-11-18
Abstract: 777,223. Moulds for concrete. ECROFNIER & PARTNERS, Ltd. Jan. 4, 1955 [Nov. 18, 1953], No. 31947/53. Class 87(2). The sides of a mould have their upper edges of channel shape 10 to allow a wheeled hopper or vibrator 12 to run over the moulds. Specification 777,222 is referred to.
Patent GB-1585807-A (GB)
Title: Connector for flat electrical cable
IPC: H01R4/24
Filed: 1977-08-01
Abstract: In the case of a flat-cable connecting device having a plurality of connecting contacts (5) which are supported in an insulating material body and comprise plug sockets and plug pins, said connecting contacts (5) in each case have at least three contact fingers (12, 13, 14) which extend approximately parallel to one another and are arranged offset with respect to one another, at a distance from one another and in the longitudinal direction of a conductor (10), which is to be connected, of specific diameter of the flat cable [sic]. After puncturing the insulation (11) surrounding the conductor (10), said contact fingers come into contact with said conductor (10). In order to ensure perfect contact-making between the connecting contacts (5) and the conductors (10) of the flat cable, particularly in the case of mechanical, thermal, or electrical stress over a relatively long period, each connecting contact (5) has a construction and arrangement of the contact fingers (12, 13, 14) such that they place the conductor (10) under prestress locally during pressing in by zig zag-like elastic deformation. <IMAGE>
Patent GB-322281-A (GB)
Abstract: 322,281. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 10, 1928. N - Dihydro - 1:2:2<1>:1<1> - anthraquinonazine series.-The condensation products ot N-dihydro- 1 : 2 : 2<1>: 1<1>-anthraquinoneazines with formaldehyde or agents supplying formaldehyde (Specification 20527/04) are converted by oxidation into new dyestuffs which dye more greenish shades than the initial materials. Acid or alkaline oxidizing agents may be used or the initial material may be heated with alkaline agents alone, whereby a leuco-compound of the new dyestuff is formed which is then oxidized. The preparation of the starting material and the subsequent oxidation can be carried out in one operation. In examples, (1) the condensation product of N-dihydro-1 : 2 : 2<1>: 1<1>-anthraquinoneazine and paraformaldehyde is oxidized in sulphuric acid solution with potassium bichromate; (2) the condensation product of N-dihydro-1 : 2 : 2' : 1<1>-anthraquinoneazine and formaldehyde is heated with ground caustic potash and the product air-oxidized; (3) a suspension of N-dihydro-1: 2: 2' : 1<1>- anthraquinoneazine in sulphuric acid is treated with paraformaldehyde and the condensation product, with or without isolation, oxidized with manganese dioxide.
Patent GB-485476-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/62
Filed: 1936-11-25
Abstract: 485,476. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent Treuhand Ges. f³r Electrische Gl³hlampen) Nov. 25, 1936, No. 32274. [Class 39 (i)] [Also in Group XI] In an electric lamp in which at least a substantial part of the light comes from a filament heated to incandescence by the passage of current through it, the envelope enclosing the filament contains an amount of mercury which is limited so that it is all evaporated when the lamp is in its normal operating condition and thereby generates a pressure of not less than half an atmosphere. The amount of mercury may be so adjusted that it is all evaporated when the lamp is consuming steadily substantially 90 per cent of the power that it consumes in normal operation, and the pressure of the vapour during normal operation may lie between 0À5 and 20 atmospheres. A rare gas such as the usual argon-nitrogen mixture is preferably mixed with the mercury vapour to prevent evaporation of the electrodes while the lamp is heating up. Alternatively krypton or xenon, or a mixture thereof may be added. An incandescent lamp and a high-pressure metal vapour lamp may be combined in the same envelope. The lamp may be in the form of a quartz or hard glass tube with a longitudinally arranged coiled-coil filament or a rod of tantalum carbide or the like provided with leading- in wires sealed in at opposite ends of the tube. Fig. 3 shows a filament 2 in series with a discharge path 11 between electrodes 9, 10, there being a porous partition 8 between the discharge space and filament space. A starting electrode 12 is connected to the electrode 10 through a resistance 13. In a modification the discharge space is located at the central portion of the tube, with a filament at each end. Fig. 5 shows an inverted-U-shaped tube with a horizontal portion providing the discharge space 11 and filaments 2, 2<1> in the vertical limbs. The filament and discharge paths may be located within separate envelopes both enclosed in a common bulb or jacket adapted to transmit ultra-violet light; it may also be frosted on its interior surface and may carry luminescent material adapted to be excited by the radiation. Specification 398,840 is referred to.
Patent GB-818322-A (GB)
Title: Improvements in or relating to fertilizer compositions
Inventor: SCHOFIELD FREDERICK RUSSELL
IPC: C05C1/00
Filed: 1955-11-11
Abstract: Fertilizer compositions are produced by mixing together ammonium nitrate and potassium chloride in aqueous solution and p  adding the resulting product to a phosphatic fertilizer material and/or a filler.  The mixing takes place preferably between 85 DEG  and 100 DEG C. and for a period of from 3 to 20 minutes.  The product may be added to the other components as a solution or possible slurry or may be solidified first and then added.
Patent GB-1314123-A (GB)
Title: Process for fastening sealing rings to pipe fittings
IPC: F16K27/04
Filed: 1971-07-09
Abstract: 1314123 Casting composite articles IPARI SZERELVENY-ES GEPGYAR 9 July 1971 [17 July 1970] 32333/71 Heading B3F [Also in Division C7] A process for fastening a sealing ring 1 to a cast metal part for a pipe-line comprises securing a flat ring 2 to that surface of the sealing ring which is intended for engagement with said cast part, locating the two rings on a pattern 4, carrying out a moulding operation, removing the pattern 4 so as to leave the ring 1 partially embedded in the sand, and pouring metal into the mould to form said cast metal part. A further ring 3 may be secured to another surface of the ring 1, the rings 2 and 3 being made in either one or more sections having overlapping ends. The rings 2 and 3 are made of a material having a higher melting point than that of the metal being cast and are preferably provided with a knurled surface. The sealing ring may be made of brass, the rings 2 and 3 of galvanized steel plate and the cast metal part of cast iron. The thermal conductivity of the materials is such that some melting of the brass ring 1 occurs towards the end of the pouring operation and gives rise to a brazing-like joint between it and the rings 2 and 3.
Patent GB-1208705-A (GB)
Title: Improved chair having a detachable chair back
IPC: A47C7/42
Filed: 1969-06-26
Abstract: 1,208,705. Detachable seat backs. LA-Z-BOY CHAIR CO. 26 June, 1969 [19 July 1968], No. 32472/69. Heading A4J. The back 14 of a chair is detachable for shipping and is secured in use by slide brackets 34, one on each side of the back, engaging on upstanding links 15 and locking in position by a cam 42 engaging a slot 46. The link is pivoted (Fig. 2) at (19) and the back is adjustable for angle, being locked in position by a thumb screw (32). It may also be applied to a reclining chair.
Patent GB-1197393-A (GB)
Title: Torque Release and Shut-Off Mechanism for Pneumatic Tools
IPC: F16D15/00
Filed: 1968-07-08
Abstract: 1,197,393. Friction clutches. INGERSOLL-RAND CO. 8 July, 1968 [31 Aug., 1967], No. 32507/68 Heading F2C. [Also in Division B3] A pneumatically operated nut-runner, Fig. 1, has a friction clutch which automatically disengages when the torque transmitted reaches an adjustable pre-set amount. The clutch comprises two members with mating tapers 22, 23, Fig. 3, the member 22 being driven by a member 13 through balls 25 which seat in recesses 26, 27. The members 13, 22, 20 are urged into driving relationship by a spring 35, Fig. 2, which is adjusted by a nut and a " Jacobs " type chuck key 40, to pre-set the torque at which the clutch disengages. When the limiting torque is reached the balls 25 ride up the sides of the recesses 26, 27 and force the members 22, 20 away from the member 13 by an amount which is limited by a circlip 31. This movement depresses a valve 45, Fig. 2, which is attached to the member 20 by a bearing 33. When the valve 45 meets a shoulder 52 the air exhaust 44 is closed. This causes the driving motor 7 to stop and pressure to rapidly build up across the valve 45. The pressure developed pushes the valve down on to a shoulder 53 and as it descends the valve pulls the member 20 out of engagement with the driven member 22 thereby disengaging the clutch. When the air supply is cut off by the lever 5 the clutch re-engages. In a second embodiment, Fig. 6, the valve 45 is mounted on the bearing 33 with lost motion and restrained by a light spring 58. This allows the pressure across the valve to close the air exhaust before the pressure is great,enough to disengage the clutch thereby providing quicker operation. In a third embodiment, Fig. 7, cam notches 62, 63 up which the coupling balls ride are shaped as shown. This ensures that once the balls are over knees 66 they can roll up the slope 65 under a torque which is smaller than that originally required to initiate the movement.
Patent GB-295882-A (GB)
Title: An improved holder for menu cards and for like purposes
IPC: G09F1/14
Filed: 1927-12-02
Abstract: 295,882. Parkes, T. H. Dec. 2, 1927. Card stands. - A menu or other cara holder consists of two plates or discs a, b, one or both of which are translucent, secured. sufficiently closelv together to receive and grip the card f. The pdates are united to a metal &c. strip d by cement or by a peg e, the strip d being cemented &c. in a base c. A card &c. may be permanently or detachably interposed between the discs a, b, its top edge forming an abutment for the bottom of the menu &.c card f, which may itself have a depending integral portion f<1>. The base c may be in the form of an ash tray, and may have means to support a match box.
Patent GB-1071872-A (GB)
Title: Improvements in dispensing apparatus
Inventor: SMITH MERVYN GEORGE
IPC: A47F1/08
Filed: 1963-08-17
Abstract: 1,071,872. Dispensing articles. ELLIOTT BROTHERS (LONDON) Ltd. Aug. 14, 1964 [Aug. 17, 1963], No. 32621/63. Heading A4T. [Also in Division B8] Apparatus for dispensing the lowermost article of a stack from a holder comprises inflatable means which hold at least the article immediately adjacent the lowermost when the latter is about to be discharged through a gate or other retaining device, the inflatable means releasing the stack after the article has been dispensed and the gate &c. closed. The holder is in the form of a cage 1 with channel-section members each having an inflatable bag 8 therein, the bags connected to a source of fluid under pressure through a pipe 9. A gate is formed by two pivotable flaps 5. The bags expand pressing all the boxes above the box (A) (Fig. 3b, not shown) against the opposite side of the cage. Upon opening the flaps 5, the box (A) falls out (Fig. 3c, not shown), the flaps are closed and the other boxes drop down when the fluid is released (Fig. 3c, not shown). If the weight of a column is small, then only the box (B) need be gripped by a horizontally extending bag (not shown). The stack may be inclined to the vertical and the device incorporated in a shoot.
Patent GB-945570-A (GB)
Title: Tracer controlled lathes and like machine tools
IPC: B23Q35/18
Filed: 1961-09-12
Abstract: 945,570. Copying lathes; copy grinding. S. R. CUDNOHUFSKY. Sept. 12, 1961 [July 13, 1961], No. 32670/61. Headings B3D and B3T. Mechanism for automatically advancing the tool in a number of steps in a templet controlled lathe, grinding machine, or like machine tool, comprises a metering valve which allows a predetermined quantity of fluid into a cylinder controlling the distance between the operative end of a stylus and the cutting tool. A lathe carriage 12, moved along guideways 10 on a bed by piston and cylinder means 14, supports a crossslide 16 also moved by piston and cylinder means 20. The transverse and longitudinal movements are controlled by a stylus 40 and known tracer valve 34. The cutting tool 24 is mounted directly on the cross-slide but the stylus and valve are carried on an adjustable compound slide arrangement 36, 38, on a further transverse slide 32. The latter is moved by a piston and cylinder arrangement 74, 72, the maximum displacement of which is limited by an adjusting screw 78. The arrangement is set-up by using a finished workpiece in the place of the blank between centres 151. The number of cuts are decided (three in the example shown) and the amount of each cut is adjusted on the metering valve adjuster 97. A cycle start button 136 and single and multi-cut control 134 are provided on the machine to condition switches and solenoid-operated valves in the hydraulic circuit provided with a pump P. After the first cut the tool breaks out at point 142 and the cross-slide in retracting carries an adjustable dog 66 which operates a limit switch 64 to return the slides and condition the circuits for a fresh cut. The second cut is similar but the third and final cut is such that the stylus and tool have separated sufficiently to continue the longitudinal motion along the final part of the templet without actuation of switch 64. The motion continues until limit switch 62 is operated when the arrangement is brought back into an idling condition ready for a new workpiece to be cut.
Patent GB-895268-A (GB)
Title: Improvements in and relating to the preparation of nitrosamines
Inventor: GETZ JOHN WARREN
Filed: 1960-09-23
Abstract: Nitrosamines are prepared by forming a solution of an amine of formula R1R2NH, where R1 and R2 are alkyl or hydroxyalkyl, and having a pH of greater than 6, by (i) mixing the free amine and water and adding a strong mineral acid to a pH greater than 6, or (ii) dissolving a neutral salt of the amine with a strong mineral acid in water; adding a stoichiometric amount of a soluble nitrite, and then adding a strong mineral acid in sufficient quantity to lower the pH to 2-5.  Preferably the amine solution has a pH of at least 7.  The preferred reaction temperature is 40 DEG C.-100 DEG C.
Patent GB-336120-A (GB)
Title: Improvements in or relating to chair seats, screens and the like and process of making the same
IPC: A47C7/22
Filed: 1929-10-28
Abstract: 336,120. McCullough, W. E. Oct. 28, 1929. No Patent granted (Sealing fee not paid). Spring surfaces. - Chair seats and backs, window screens, cloth screens, and like articles are constructed by stretching woven or like material 10 between two closelyfitting concentric frames 15, 16, and moulding a thermoplastic material 11 such as " Bakelite " about the frames so as substantially to conceal them and hold the woven &c. material under tension. In a modification two layers of textile fabric are used with padding between them to form an upholstered seat for example. In a further modification a disc of metal is provided with an angular groove 17 in place of the ring 16, and padding is held between a single layer of fabric and the metal disc.
Patent GB-801814-A (GB)
Title: Improvements in belt conveyor idler roller and method of manufacture
IPC: B65G39/02
Filed: 1956-10-26
Abstract: 801,814. Making rollers; cupping. KENNEDY VAN SAUN MFG. & ENG. CORPORATION. Oct. 26, 1956 [Nov. 16, 1955], No. 32716/56. Classes 83 (2) and 83 (4). [Also in Group XXX] An idler roller 13 for a belt conveyer is made by cold pressing from sheet metal two separate parts 15 each comprising a cylindrical body and a dished end 17 with an inturned wall 18 for receiving a bearing 21, the two parts being subsequently joined together at 16 to form an integral roller. Each part is preferably cold pressed from a flat sheet 27 Fig. 2 (not shown), which is formed into cup-shape by dies 28, 29, Fig. 3, and is then deep drawn in steps, Figs. 4-8 (not shown), to provide a cup of the required cylindrical size and an axially projecting head. The head is then pressed inwardly by dies, Fig. 9 (not shown). The two parts are trimmed to length and are then joined together by butt welding 16 which is machined or ground flush on the outside of the roller. The metal used may be steel, alloy steel, aluminium or aluminium alloys.
Patent GB-537487-A (GB)
Title: Improvements in or relating to shades or screens for lighting devices
IPC: F21V11/00
Filed: 1939-12-22
Abstract: 537,487. Lamp screens. PARSONS, C. S. (Hellegers, C.). Dec. 22, 1939, No. 32776. [Class 75 (ii)] A screen for lamps comprises an opaque cylindrical member a, a<SP>1</SP> surrounding the light source and suspended from a shade t by springs s attached to lever hooks u pivoted upon U-shape springs h engaging with the underside of the shade t. A light transmitting member o made for example of woven glass or glass wool is arranged within the lower part of the screen. A cylindrical adjustable member i is arranged in the upper part of the screen and is spaced therefrom by means of vertical ribs to provide spaces for the circulation of air communicating with the interior. of the screen by apertures p and with the atmosphere at the top of the screen.