baber/WOPTO huggingface dataset:
Patent GB-616304-A (GB)
Title: Cellulose ethers and the process for producing the same
IPC: C08B11/00
Filed: 1946-05-17
Abstract: Cellulosic material is subjected in the presence of alkali to the action of an etherifying agent so as to form a hydrophilic cellulose ether and the reaction mixture is treated with an acid which neutralizes the alkali and removes free water by forming a salt hydrate which is stable at temperatures up to 35 DEG  C.  The major portion of the remaining water in the product may be removed by drying at a temperature below the decomposition temperature of the hydrate or by adding to the mixture an anhydrous salt similar to the hydrate produced by the neutralization.  The amount of free water is thus at all times kept below the amount which causes gelling, which is usually about 25 per cent by weight of the cellulose, and the product is obtained in the form of dry free-flowing granules.  The hydrophilic cellulose ether may be water-soluble or alkali-soluble. The cellulosic starting material may be wood-pulp, cotton linters, or a cellulosic conversion product such as regenerated cellulose or cellulose hydrate.  The alkali used may be caustic soda or potash. The cellulose may be first converted into alkali cellulose which is then pressed to remove excess alkali solution and then treated with etherifying agent while still wet with the alkali.  After draining off the alkali, the alkali cellulose may be pressed to 2.5 to 3.0 times the weight of the air-dry cellulose.  The alkali-cellulose is then shredded and it may be aged.  The etherifying agent may be dimethyl sulphate, methyl sodium sulphate, ethyl chloride, benzyl chloride, ethylene oxide, propylene oxide, a glycide, or a halohydrin.  The temperature during etherification should not be allowed to rise above 70 DEG  C.  A gaseous etherifying agent may be used.  After the etherification, the neutralizing acid may be added in solid or liquid form or as a concentrated aqueous solution.  The acid used may be ortho-, pyro- or meta-phosphoric acid, glycero-phosphoric acid, arsenic acid, sulphurous acid, aluminium hydrogen sulphate, metantimonic acid or molybdic acid. The mixture of cellulose ether and hydrated salt is removed from the reaction vessel, spread in a thin layer and dried.  The major portion of the remaining free water may be driven out while heating to a temperature lower than the decomposition of the hydrate, and the drying may be completed by allowing the temperature to rise gradually to 100 DEG C.  If desired, the salt may be removed from the dried product by dissolving the product and dialyzing.
Patent GB-544354-A (GB)
Title: Improvements in or connected with laundry presses
IPC: D06F71/36
Filed: 1940-10-07
Abstract: 544,354. Ironing presses. ALLEY, S. E., GARDENER, C. S., and ALLEY, S. E. Oct. 7, 1940, No. 14939. [Class 138 (ii)] A corrugated plate or plates is/are applied to the back of the pressure plate of a buck to provide a multi-channel conduit for a heating fluid, there being a restricted passage-way between the channels for the fluid. As shown, the corrugated plate or plates 14 is/are secured, as by welding, at a number of points 19 to the back of the pressure buck 13 so as to leave a space between the plates between the welded points, and the ends of 'the corrugations are closed by plates 22 welded thereto and to the pressure plate 13. Pressure fluid is introduced at an inlet 27 near one end of a side corrugation and escapes through an outlet near the other end, and a valve 28 serves to release air from the corrugations. Lugs 29 provide for securing a cover. A pair of cross plates 32 shaped to fit the corrugations carry a socket 30 whereby the buck is supported from a ball on the press arm, and a notched plate 34 extending from the socket engages a fixed pin on the arm to limit movement about the ball and socket joint.
Patent GB-624056-A (GB)
Title: Improvements connected with automatic feed mechanism for fire-arms
IPC: F41A9/02
Filed: 1947-06-06
Abstract: 624,056. Smallarms. ZBROJOVKA BRNO, NARODNI PODNIK. June 6, 1947, No. 14952. Convention date, June 21, 1946. [Class 119] Relates to smallarms which as in Specification 502,782 embody a rotary feed drum 1 of polyhedral form for feeding ammunition from the magazine to the breech. According to the invention friction is reduced by so forming each face of the drum that only a portion of its length engages a cartridge at any given instant. Thus each face may be formed as shown by two surfaces 2<SP>1</SP> meeting one another at a ridge 4.
Patent GB-1189291-A (GB)
Title: Improvements in or relating to Aircraft Undercarriages
Inventor: COOK ROBERT JAMES
IPC: B64C25/62
Filed: 1966-07-21
Abstract: 1,189,291. Aircraft undercarriages. HAWKER SIDDELEY DYNAMICS Ltd. 20 July, 1967 [21 July, 1966], No. 14958/66. Heading B7G. [Also in Division E2] An aircraft undercarriage leg 12 has pivoted thereto e.g. by pin 52, an arm 25 on the lower end of which is mounted a wheel 11, the arm and wheel being pivotable rearwards and backwards from a datum position (shown) towards which they are urged by a fluid pressure jack (e.g. comprising piston 14, rod 42, in cylinder 43) which has a yieldable lock to hold it in the datum position, the lock yielding when the wheel is subjected to a rearward force in excess of a load predetermined either by the pressure of the fluid in the jack, or by a spring force, Fig. 3A. The arm 25 may be attached to the jack, which acts as a shock absorber, by a link 48. The yieldable lock may comprise a series of balls 46 urged radially inwards by a conical face 16 on a member 44 urged downwardly by the pressure in the cylinder 43, the balls being urged against a conical face 17 on rod 42, preventing downward movement thereof below a predetermined load. An alternative form of yieldable lock is housed in the cap 49 of the cylinder 43 and comprises a ring of sprung claws 65, Fig. 3A, which, at a predetermined load, urge a cap 61 downwardly compressing pre-loaded disc springs 66.
Patent GB-1529238-A (GB)
Title: Glassware forming machines
IPC: C03B9/38
Filed: 1976-06-22
Abstract: 1529238 Cooling blow moulds EMHART INDUSTRIES Inc 26 June 1976 [7 July 1975] 15172/78 Divided out of 1529237 Heading CIM In a blow mould station comprising generally cylindrical mould segments Ml, M2 and M3, M4 individually mounted on mould holder means (e.g. as claimed in Specification 1,529,237), each of said holder means comprising mould holder arms 62,64 and mould holder structure between said arms, the mould holder structure defines a chamber (110) and nozzle openings 112,114 disposed tangentially to the mould segments M1-M4, so that cooling air supplied to the chamber is emitted as circulatory flow around the mould segments.
Patent GB-841471-A (GB)
Title: Improvements in or relating to the production of garments on straight bar knitting machines
Inventor: TAYLOR GEORGE
IPC: D04B11/00
Filed: 1955-05-26
Abstract: 841,471. Knitting. COTTON Ltd., W. Aug. 27, 1956 [May 26, 1955], No. 15178/55. Class 74 (2). In producing blanks on a straight - bar machine, changes between rib and non - rib courses include knitting one facial set of loops of a rib course on selected needles of one bed of simultaneously operable needles which are interspersed with empty intervening needles, knitting the reverse facial set of loops of that course on needles of a second bed of simultaneously operable needles which, for at least the major part of the course length, are of a number and spacing the same as the number and spacing of the said intervening needles, and transferring the reverse facial set of loops from the needles of the second bed to needles of the first bed, the transfer, for at least the said major part of the course-length, being to empty intervening needles. Rib fabric is knitted on a machine having two beds of bearded needles 1, 2, by feeding yarn Y to all the needles 1, sinking thread kinks therearound by sinkers 3, but allowing selected ones 1b only of these needles to knit, the remaining ones 1a having their beards pressed by channel points 5 as they descend, so that their thread kinks K are landed on the needle beards and cast off, to lie across pairs of consecutive sinker nebs 3a and so to be taken and knitted by the needles 2 after the selected needles 1b have knitted. As shown, 1 X 1 rib is being made, the second bed having needles corresponding to alternate needles of the first bed. To change from rib knitting to plain knitting, the needles 2 are advanced so that the last-drawn loops thereon are positioned by projections 11 on their shanks and spread by cranked spring strips 7 to be penetrated by and relinquished to the remaining ones 1a of the needles 1. For this purpose, the leading ends of the strips 7 are free and are masked by swells 10 on the needs shanks. Roll welts RW may be knitted by transferring thread kinks K to the needles 2, as if to begin rib knitting, but thereafter continuing plain knitting on all needles 1 until sufficient welt fabric has been knitted, whereafter the needles 2 are advanced to take a second lot of thread kinks K and rib knitting is begun, the welt being closed when the second lot of thread kinks taken by the needles 2 is drawn through the kinks already on the needle shanks. Blanks may be knitted in a continuous length, the roll welts following plain fabric and being followed by rib bands. When each article is pressed-off in turn and begins with a roll welt, hooks 12 engage the first yarn kinks taken by the needles 2 and draw off the welt fabric, carrying it along the needles 2, as it is knitted by the needles 1. After welt formation, these hooks remain engaged with the thread kinks until sufficient fabric has been knitted to permit attachment of main draw-off hooks.
Patent GB-809102-A (GB)
Title: Preparation of detergent compositions
IPC: C11D3/06
Filed: 1957-05-13
Abstract: Detergent compositions comprising a water-soluble alkali metal polyphosphate with a ratio alkali metal oxide/P2O5 of 1-1.67, a water-soluble alkali metal silicate with a ratio SiO2/alkali metal oxide of 2-3.4 and preferably 2.7-2.9, and chlorinated trisodium phosphate (trisodium phosphate and sodium hypochlorite in intimate crystalline association containing 1.5 per cent available chlorine) are prepared by adding the alkali metal silicate and water, preferably as an aqueous solution of sodium silicate, to the polyphosphate in an amount sufficient at least to wet the polyphosphate and induce agglomeration but insufficient to destroy the discrete particle nature of the mixture, agitating the mixture, adding the chlorinated trisodium phosphate to the mixture, again agitating the mixture, ageing the mixture with intermittent agitation, and thereafter reducing the agglomerates to the required size.  The amount of water added is suitably 12-25 per cent of the final composition, which desirably comprises 35-60 per cent polyphosphate, 8-20 per cent silicate, and 15-30 per cent chlorinated phosphate.  If desired, non-ionic detergents such as an ethylene oxide/propylene oxide/propylene glycol condensate or fatty acid alkanolamide may be added to the polyphosphate composition, suitably with the silicate solution. When the silicate solution is added, the temperature should be kept below 130 DEG  F., and if desired a minor proportion of the silicate solution to be added may be withheld and added to the mixture after addition of the chlorinated phosphate. Urea, potassium nitrate, hydrated ortho-, pyro-, and tripoly-phosphates, silica, and talc may also be incorporated. U.S.A. Specifications 1,555,474, 1,965,304 and 2,689,225 are referred to.
Patent GB-1461616-A (GB)
Title: Battery equalizing discharger
IPC: H02J7/00
Filed: 1974-04-05
Abstract: 1461616 Discharging batteries MABUCHI MOTOR KK 5 April 1974 [10 April 1973 (2)] 15198/74 Heading H2H In order to prevent overcharging of a plurality of series connected batteries, the batteries are first placed in a device comprising discharge circuits whereby the batteries are discharged each to the same predetermined level. The device comprises a housing 10 having terminals 12, 13 and 11 which make contact with the positive and negative terminals 8, 9 respectively of the series connected batteries 1 held in a cassette 7 when this is placed in the device, the contacts 11 simultaneously each making contact on a case of an individual battery 1, the housing containing a plurality of resistors 2 and lamps 5, so connected to the terminals 11, 12, 13 that each battery 1 discharges through a respective resistor 2 to a predetermined voltage level which is indicated by a respective lamp 5, the housing 10 further containing an electric motor 6 driving a fan 16 to cool the resistors by way of ventilating apertures 17 in the housing 10. If desired each resistor 2 may have a diode connected in series therewith. Furthermore, a battery charging apparatus (not shown) may be incorporated with the discharging device. The apparatus of the invention prevents reverse charging of a battery when a plurality of batteries are charged in series.
Patent GB-134181-A (GB)
Title: Improvements in and relating to Bucket Wheels for Elastic Fluid Turbines or the like and Methods of Making same.
IPC: B23P15/00
Filed: 1919-06-17
Abstract: 134,181. British Thomson - Houston Co., (General Electric Co.). June 17, 1919. Turbines.-Blade wheels for turbines or the like are made by winding successive layers of strip material 12 having spaced openings 13 therein about a disk 5 so that the openings in successive layers coincide, inserting the bases of the blades 15 in the openings, and welding, brazing or otherwise fastening together the disk, layers and blade bases. The winding is effected by giving a step-by-step movement to a plate 6 secured to the disk 5, and having notches 7 adapted to be engaged by the pawl 9 of a lever 8. A cam 9<a> is rotated to oscillate the lever 8, and backward movement of the plate 6 is prevented by a pawl 11. A punch 14 operating in synchronism with the lever 8 punches a hole 13 in the strip 12 after each movement of the disk 5. The lever 8 is fitted with a frictional device engaging the plate 6 to bring its teeth into firm engagement with the pawl 11. A shroud ring 16 is shrunk over the outer part of the blades, before the welding or other fastening operation is performed.
Patent GB-1483017-A (GB)
Title: Shaft furnace for thermal processing of solid fuels
IPC: C10B1/04
Filed: 1975-04-15
Abstract: 1483017 Discharging shaft furnaces N I INST SLANTSEV and SLANTSEPERERABATYVAJUSCHY KOMBINAT "KOKHTLA-YARVE" IM VI LENINA 15 April 1975 15330/75 Heading F4B [Also in Division C5] A shaft furnace for the semicoking of lump solid fuel, e.g. oil shale, comprises a shaft 1 accommodating a semicoking zone 2 incorporating two shale distillation chambers 5, a gasifying zone 3, a zone 4 for cooling solid waste material, and a pair of unloading devices for discharging the solid waste material from the shaft bottom, with each unloading device comprising a downwardly tapering hopper 22 opening into a trough 30 provided with a water seal 23, a sector-shaped rocking-type combined valve and pusher member 24 arranged to open and close the hopper bottom, and an articulated mechanical shovel 29 operative to remove solid waste material from said trough on to a conveyer 34, said mechanical shovel 29 and said valve and pusher member 24 being linked mechanically via a rod 31 and being associated with hydraulic rams 33 and 38. Oil shale is charged into the furnace from hoppers 16 via gate valves 18 and belts 19. A heat carrier, generated in a central chamber 6 by means of burners 14 and gas supply means 15, is fed into the semicoking zone 2 via nozzles 9, the resulting vapour-gas mixture being collected in lateral chambers 7 and discharged therefrom via outlet ducts 20. Metallic gratings 10 separate chambers 7 from the distillation chambers 5. Gasification agent or a heat carrier are introduced into the zone 3 via nozzles 12 in a vertical wall 13 of slide chambers 11 which are also provided with burners 14 and gas supply means 15. Steam may also be introduced into the zone 3 through suitable inlets (not shown). Cooling gas is supplied to the waste material cooling zone 4 through inlets 21. The trough 30 comprises arcuate and sloping sections merging with one another, with the mechanical shovel 29 being disposed above the sloping section of the trough.
Patent GB-720983-A (GB)
Title: Improvements in or relating to cable lubricators
IPC: F16C1/24
Filed: 1953-06-03
Abstract: 720,983. Bowden mechanism. GREEN, J. H. June 3, 1953. No. 15353/53. Class 80 (3). [Also in Group XXXIV]. A device for lubricating Bowden wire cables comprises two hollow members shown as hemispheres 13, 14, Figs. 2 and 3, secured together about the cable 6 to form a reservoir for lubricant which is supplied through an opening 17 provided with a spring-pressed valve 18. Part of the outer sheath 12 of the cable is removed to enable the lubricant inside the reservoir to reach the outer member 11 of the cable. A set screw 20 is provided whereby the cable may be bent to enable the lubricant to pass between the turns of the outer member and reach the inner member 10. The two hemispheres 13, 14 have steps 16 to assist in forming a liquid-tight joint and-they are connected together by bolts 23. In a modification shown in Fig. 4, the cable is bent by a fixed projection 27 formed in the inside of one hemisphere 14, and the cable is separated from the hemispheres by liners 25. The two hemispheres are connected together by a metal ring or the wire 29.
Patent GB-746144-A (GB)
Title: Improvements in or relating to insulated aerial fittings
IPC: H01Q1/28
Filed: 1954-05-25
Abstract: 746,144. Strain insulators; sleeve couplings; binding posts. FLADER, Inc., F. May 25, 1954 [May 26, 1953], No. 15361/54. Classes 36 and 38 (1). [Also in Group XL (c)] A terminal member comprises an elongated inner body 10, a self-locking terminal connector 12 attached to one end thereof and coaxial theiewith and an insulating sheath 14 enclosing the body 10 and terminal 12 and having an axial bore 14a in its end communicating with the terminal for the reception of an insulated wire 16, the terminal being tapered towards its outer end to a diameter not substantially exceeding that of the bore. An annular sealing member 24 may be inserted in a complementary chamber 14b adjacent the end of the sheath, and is tapered inwardly to a diameter not greatly exceeding that of the bore 14a, and a removable cap 26, having a passage 26b therethrough for the passage of the conductor may be applied to the end of the sheath. The terminal 12 may fit over a reduced end portion 10a of body 10, and be secured thereto as by crimping. The terminal has a tapered bore 12a containing a helical spring 20 compressed between portion 10a and a pair of chuck jaws 18, and a counterbored portion 12c to receive the end of conductor insulation. The bared end 16a of the conductor is inserted in the terminal, pushing jaws 18 inwardly against spring 20 until they expand sufficiently to receive the conductor end between them and are pushed back by the spring to grip the conductor. End cap 26 is screwed into the end of sheath 14, a spring washer 28 and plastic washer 29 being interposed between the cap and the sealing member 24. The arrangement of the parts is such that the internal contours of the sheath change gradually, which is stated to enable the sheath to withstand wide variations in temperature without cracking. In a strain insulator arrangement the body 10 is of insulating material and is provided with a similar terminal assembly at each end. The construction may also be adapted to a T-fitting (Fig. 3), the body 101 being made of metal-and suitably shaped to electrically connect three terminals 12. Specification 672,127, [Group XL (c)], is referred to.
Patent GB-406973-A (GB)
Title: Electrical pocket-lamp
IPC: F21L4/00
Filed: 1932-05-31
Abstract: 406,973. Electric battery lamps. SCHLACHTER, S., 23, Zeil,Frankfort-on-Main, Germany. May 31, 1932, No. 15400. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 13, 1932]. [Class 39 (ii).] In an electric battery pocket lamp having a fixed bulb which is normally covered by a hinged lid on the battery casing, the lid either functions as or is adapted to operate a switch which closes the battery circuit when the lid is opened. In the construction shown in Figs. AI and AII, the holder of the bulb 8 is mounted in an insulating support 6 and the lid 4 carries a projection 5 which is adapted to contact with the holder when the lid is opened. Inmodified constructions the battery circuit includes two contacts which are opened or closed by the movement of a projection carried by the lid. The lid may be formed as a reflector.
Patent GB-568517-A (GB)
Title: Improvements in or relating to chimney tops
IPC: F23L17/02
Filed: 1944-10-19
Abstract: 568,517. Chimney tops. EDGE, A. Oct. 19, 1944, No. 15450/43. [Class 25] A chimney top, comprises an upwardly tapering smoke pipe a, a<1> around which is disposed a sleeve shaped by bending to form a plurality of open-ended passages b to which the ascending smoke gains access through openings between the upper end of the smoke pipe and an open-bottomed chamber c, c<1> secured to the flat portions b<2> of the surrounding sleeve. The conical top of the chamber c, c<1> carries a rainexcluding cap d and positioning webs f are provided between the smoke pipe a, a<1> and the surrounding sleeve. The latter is secured to the pipe a by bolts h which by engagement in elongated slots g enable the surrounding sleeve together with the chamber c, c<1> to be vertically adjusted to vary the size of the openings through which the smoke passes to the passages b.
Patent GB-864940-A (GB)
Title: Improvements in or relating to microwave attenuators
Inventor: PENNEY JOHN ARTHUR
IPC: H01P1/365
Filed: 1958-05-14
Abstract: 864,940. Waveguides. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Nov. 28, 1958 [May 14, 1958], No. 15548/58. Drawings to Specification. Class 40(8) A resonance absorption isolator of the kind comprising ferrite material, such as that known as RI, in a microwave energy channel and adapted for use with a constant magnetic field applied transversely to the direction of wave propagation, has the ferrite material in the form of pieces of substantially rectangular cross-section with a thickness/width ratio chosen to satisfy specified equations to ensure that a substantially constant isolator loss characteristic and that a substantially constant resonance frequency with variations in saturation magnetization and effective gyromagnetic ratio over a wide range of working temperatures is obtained. Two pieces of ferrite can be positioned substantially opposite one another on two opposite walls of a rectangular wave guide at least approximately in a position of circular polarization. Dielectric loading of the waveguide may be present.