baber/WOPTO huggingface dataset:
Patent GB-1428172-A (GB)
Title: Conveyor for transporting objects
IPC: B65G13/071
Filed: 1973-03-09
Abstract: 1428172 Roller conveyers SHUTTLEWORTH Inc 9 March 1973 [9 March 1972] 11512/73 Heading B8A Conveyer rollers used in a case packer 30 are mounted for rotation on driven shafts, the rollers being loosely received on the shafts. Articles are normally propelled by the rollers but if an article is braked the rollers supporting the article are also braked but the respective shafts may continue to rotate. A roller conveyer 33 comprises two groups, the rollers of group 33B rotating at a speed less than those of group 33A. Each roller 50 or 51 is mounted on a shaft 52 and may comprise a rubber outer sleeve secured on an inner sleeve of nylon. A stainless steel cover may surround the sleeve  53. Each shaft 52 in the group 33A is driven by a belt 60 engaging a shaft 59 and by belt gearing 62-66 driven by a motor 67. A shaft 68 drives the roller shafts of the group 33B but, by belt gearing 70-72, is driven at a lower speed than that of the shaft 59. To prevent permanent deformation of the shafts 52 when large loads are carried on the rollers 50, 51 bars 176 support individual rollers when the shafts are pressed downwardly. Channels for the articles are formed by guides 43 adjustably supported on transverse members 45. The packer 30 also includes a roller section 35 movable to position 35<SP>1</SP>, a vacuum head 34 and a box conveyer 32. The drive to rollers 80 of the section 35, which are similar to the rollers 50, 51 has a tubular member 86 which telescopes over the shaft 68, to provide the drive whatever the position of section 35. In operation, articles such as bottles travelling in the direction 36, accumulate between the guides 43 and, having passed on to the roller section 35, a batch is lifted therefrom by the vacuum head 34, the section 35 is moved to position 35<SP>1</SP> and the articles are lowered into a box positioned by the conveyer 32.
Patent GB-667395-A (GB)
Title: Ball bearing for winding rockers in self-winding watch and clock movements
IPC: G04B5/19
Filed: 1949-04-29
Abstract: 667,395. Watches. ANNEN, R., and ROULEMENTS A. BILLES MINIATURES SOC. ANON. April 29, 1949, No. 11522/49. Class 139. The rocking weight in a self-winding watch is supported on a ball bearing having at least three raceways. In the first example (Fig. 1), four raceways are provided, two on an inner ring or race 5 held on a pillar 6<SP>1</SP> by a screw 7, and the other two on relatively adjustable rings 2 and 3. The ring 2 is carried by the arm 1 of the winding weight and constitutes the first pinion of the winding train. The ring 3 is forced into the ring 2. In another example (Fig. 2, not shown), the ring 3 constitutes the first pinion of the winding train and is positioned below the ring 2. In another embodiment (Fig. 3), the two outer raceways are on separate rings 11, 12, both forced into a ring 10 set in the arm 1. The ring 10 constitutes the first pinion of the winding train. In another embodiment (Fig. 4, not shown), the lower outer ring 12 forms the said first pinion. In a further embodiment (Fig. 5), the outer raceways are on the one ring 14 and the inner raceways on separate rings 15, 16, forced on to a ring 17 held on a pillar 6<SP>1</SP> by a screw 7. One of the rings 15 or 16 may be integral with the ring 17.
Patent GB-968055-A (GB)
Title: Magnetic material, magnetic impulse recording members and methods of making magneticmaterial
IPC: C01G49/06
Filed: 1962-03-27
Abstract: A method of making a magnetic material comprises precipitating ferric hydroxide from fluid suspension on to finely-divided particles of a substance having acidic silanol groups such as kaolinite, removing the suspending fluid, heating the residue in mineral oil to effect conversion to ferric oxide and extracting the mineral oil.  In one example kaolin particles of mean size 0.15m  were formed into an aqueous slurry with FeSO47H2O at 80 DEG  C. Concentrated NaOH is added and the precipitate agitated, filtered, washed and dried.  A second similar precipitation was carried out (NH2OH.HCl being included) and the dried product was heated in mineral oil for 2 hours at 350 DEG C.  The material was extracted using an organic solvent such as methyl chloroform or toluene.  The resultant particles had a mean size of 0.062m  and consisted of a core coated with ferric oxide the core comprising 2-10% of the whole.  The ferric oxide had properties similar to magnetite and was at a stage between d Fe2O3 and g Fe2O3.  The use of NH2OH.HCl at the second precipitation reduced decomposition from the delta phase to the alpha phase. Instead of kaolin, sodium bentonite or hydroxylated silica may be used as a carrier.  The particles mixed with a binder and applied to a non-magnetic base formed a magnetic recording medium.
Patent GB-183553-A (GB)
Title: Improvements relating to cloth goods having scalloped edge stitching
IPC: A41D27/24
Filed: 1921-04-22
Abstract: 183,553. Green, R. W., and Linens, Ltd. April 22, 1921. Ornamenting fabrics. - Articles such as table cloths, bed. spreads, pillow cases, cushion covers, and serviettes are provided with an ornamental fabric backing a ex tending partly under the main piece of material b and secured thereto by hem or other stitching c, and in some cases by scallop edge stitching, along the edge of The main portion.
Patent GB-215789-A (GB)
Title: Improvements in the process of making ammonia by catalysis
IPC: C01B3/02
Filed: 1924-05-12
Abstract: The mixture of nitrogen and hydrogen to be used for the catalytic synthesis of ammonia is freed from impurities such as water and carbon compounds by contact with anhydrous liquid ammonia.  The gases are preferably maintained under pressure during the purification treatment.  When the ammonia produced by the reaction is separated from the system of liquefaction, the purification of the gases may be effected by passing them through the liquefaction vessel itself before they reach the synthesizing chamber.  If, however, the ammonia be separated from the system by other means than liquefaction or if, when liquefaction is employed, it is not desired to contaminate the product, a separate vessel containing liquid ammonia is provided through which the gases are passed before they enter the synthesizing chamber.  The method is stated to be particularly applicable to the de Jahn process for ammonia production from a crude gas mixture containing hydrogen, nitrogen, and carbon monoxide, a pressure of about 95 atmospheres being employed in the synthesizing operation.
Patent GB-1148318-A (GB)
Title: Rechargeable cell and depolarizing electrode therefor
IPC: H01M10/24
Filed: 1966-03-17
Abstract: 1,148,318. Batteries. MALLORY BATTERIES Ltd. 17 March, 1966 [30 March, 1965], No. 11733/66. Heading H1B. [Also in Division C7] The cathode of a rechargeable cell comprises an alloy of palladium and mercury. The alloy is produced by adding mercury to an acidified palladium chloride solution and washing the precipitate. The alloy comprises between 3 and 21% by wt. palladium balance mercury, preferably between 9À5% and 14% palladium balance mercury. The anode of the cell preferably comprises 4-25% zinc powder balance zinc oxide. The cell is a sealed button cell with a " double top " nickel-plated steel casing as in Specification 753,090. The electrolyte comprises 39% KOH, 6À25% ZnO-balance H 2 O. The anode is covered by a regenerated cellulose layer and the cathode by a contact layer of nylon felt and an outer layer of microporous P.V.C. and a nylon felt saturated with electrolyte is sandwiched between the cellulose layer and P.V.C. layer.
Patent GB-832204-A (GB)
Title: Improvements in or relating to the polymerisation of olefins
Inventor: DER FRANCISCUS JOHANNES FREDER
IPC: C08F10/00
Filed: 1956-04-18
Abstract: Olefins are polymerized by the Ziegler low-pressure method in a liquid medium with addition of catalyst or catalyst-forming components thereto during polymerization, which is carried out at not less than 60 DEG  C.  Ethylene is the specified olefin and a mixture of either aluminium triisobutyl or aluminium diethylmonochloride with titanium tetrachloride is the preferred catalyst, while white spirit is listed as the liquid medium.  The olefin may be fed continuously to the reaction vessel and the reaction mixture withdrawn continuously therefrom.  Specifications 799,392, 799,823, 801,031 and 832,205 are referred to.
Patent GB-964451-A (GB)
Title: An instructional and amusement device for children
Inventor: DAY DAVID
IPC: G09B19/12
Filed: 1962-03-28
Abstract: An instructional or amusement device for children comprises a jig-saw puzzle in the form of a clock face, a spindle projecting therethrough from a base and carrying hour and minute hands.
Patent GB-697541-A (GB)
Title: Load-carrying vehicle or trains of load-carrying vehicles with liquid drive
IPC: B62D59/02
Filed: 1951-05-22
Abstract: 697,541. Motor-vehicle driving arrangements. KLATTE, T., [ trading as KLATTE. T.] [Firm of]. May 22, 1951 [June 6, 1950], No. 11963/51. Classes 79 (ii) and 79 (iii) Each driving wheel of a load-carrying vehicle or a train of load-carrying vehicles is driven by an individual liquid pressure motor, the vehicle or train having at least two sets of driving mechanism, each set being operable to supply to all of the motors either independently of, or in conjunction with, the other set or sets and each set comprising a prime mover and a liquid pressure pump connected with the motors. As shown the invention is applied to a road train comprising a tractor 1 and two trailers. Mounted on the tractor are the prime movers 2, 3 and the pumps 4, 5 the output of which is controlled by a valve 6. Each driving wheel 11 of the tractor has its motor connected by conduits 7 - 10 to the valve 6. The valve 6 is connected to driving wheels 12 on the trailers by conduits 7, 8 carried by the trailers, coupling between adjacent vehicles being effected by hose connections 13 and adjacent hoses being connected by couplings 14 incorporating non- return valves. In Figs. 4 and 5 (not shown), a trailer carries a crane which is actuated by an oil pump connected to the oil conduits by a valve.
Patent GB-1504265-A (GB)
Title: Method of producing a stretch fabric and a fabric produced thereby
IPC: D04B21/18
Filed: 1976-03-25
Abstract: 1504265 Knitted fabrics I ZAGIEL 25 March 1976 [25 March 1975] 12010/76 Heading D1K Stretch fabric is knitted on a warp knitting machine in which the set of yarn guides nearer to the needles is threaded with stretch yarn e.g. polyamide or polyester while the set further away from the needles is threaded with non-stretch yarn e.g. cotton or wool.
Patent GB-1220675-A (GB)
Title: Electrical connectors
Inventor: PENN ROYSTON FRANCIS
IPC: H01R4/18
Filed: 1967-03-14
Abstract: 1,220,675. Stamping. BOWTHORPEHELLERMAN Ltd. 14 March, 1968 [14 March, 1967], No. 12017/67. Heading B3Q. [Also in Division H2] A sheet metal electrical connector is attached by crimping means 2, 3 to the conductor and insulation respectively of a cable, the means 3 forming an insulation ferrule comprising a flat floor 10 and two arms 11, 12, the first portions 13, 14 of which diverge away from the floor 10, one of the arms 11 comprising a semicircular portion with a straight end portion 11a directed towards the floor, and the other arm 12 comprising an arc having its end portion 15 generally parallel to the floor. The angle X made with the floor by the end 11a may-be 70 to 85 degrees. The method of crimping comprises introducing a cable 16 into one of the arms (11, as shown) locating the ferrule 3 between confining dies (17, 18, Fig. 4, not shown) so constructed that on applying pressure: (a) the divergent portions of the arms move towards each other so as to be substantially perpendicular to the floor; (b) the end portion 11a of the arm 11 moves towards the floor and then back around the cable; (c) the end portion 15 of the other arm 12 moves so as to make contact with the first arm 11 nearer the floor, as shown in Fig. 6. Alternatively the cable may be under the arm 12, or cables may be under both arms.
Patent GB-732083-A (GB)
Title: Apparatus for testing by ultrasonic waves
Inventor: LACEY SIDNEY AMBROSE
IPC: G01N29/22
Filed: 1953-04-30
Abstract: 732,083. Ultrasonic wave couplings. MURPHY RADIO, Ltd. April 30, 1954 [April 30, 1953], No. 12019/53. Class 40 (4). [Also in Group XXXVIII] A piezo-electric transducer integrally combined with a coupling for enabling the ultrasonic vibrations generated by the transducer to be transmitted into a test-piece comprises a block 1 of hard material converging at one part to a contact surface 2 of small area, and having a surface 3 of larger area which is substantially concentric or coaxial with the contact surface, a crystal layer 4 being provided in close contact with the surface 3; the block 1 also presenting pressure surfaces 5 to which pressure may be applied, other than through the crystal layer 4, to force the contact area 2 into good contact with the testpiece. The contact area 2 may provide either point or line contact with a test-piece, and may have a rounded tip to allow of angular movement of the block with respect to the surface of the test-piece.
Patent GB-676044-A (GB)
Title: Control of variable pitch airscrews for aircraft
IPC: B64C11/38
Filed: 1950-05-15
Abstract: 676,044. Variable-pitch propellers. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Feb. 1, 1951 [May 15, 1950], No. 12041/50. Class 114. When a limiting engine speed is exceeded a governor releases gas pressure to force the propeller to its feathered position. The governor releases a latch 24 thus firing a cartridge 9, the gases from which act to move piston 2 against. the normal operating piston H. Successive firing of charge 31 moves the piston to the fully feathered position, the normal operating oil being allowed to escape by ports I and vent plugs pierced by action of the firing gases. Specification 623,818 is referred to.
Patent GB-581152-A (GB)
Title: Monoalkamine esters of substituted pyrrole-3-carboxylic acids
IPC: C07D207/34
Filed: 1944-06-24
Abstract: Alkamine esters of a 1-carbocyclic substituted 2 : 5-dimethyl-pyrrole-3-carboxylic acid of the general formula <FORM:0581152/IV/1> where R is a cyclic hydrocarbon radical and X is dialkylaminoalkyl, are prepared by heating the corresponding alkyl ester with the desired dialkylaminoalkyl alcohol in the presence of a catalytic amount of an alkali metal alcoholate.  The alkyl esters which are used as starting materials are conveniently made by alkaline hydrolysis of the corresponding pyrrole 3 : 4-dicarboxylic esters, anhydrization of the di-acid, formation of a half alkyl ester and decarboxylation.  In examples: (1) ethyl-1-cyclohexyl - 2 : 5 - dimethylpyrrole - 3 - carboxylate is refluxed with b -diethylaminoethanol in the presence of sodium to give b -diethylaminoethyl-1-cyclohexyl-2 : 5-dimethylpyrrole-3-carboxylate; (2) ethyl-1-phenyl-2 : 5-dimethylpyrrole-3-carboxylate is refluxed with b -diethylaminoethanol in the presence of sodium to give b -diethylaminoethyl - 1 - phenyl - 2 : 5 - dimethylpyrrole-3-carboxylate; (3) as in example (1) except that b -diethylaminopropanol is substituted for b -diethylaminoethanol; (4) as in example (2) except that b -di-n-propylaminopropanol is substituted for b -diethylaminoethanol.  In the form of their salts such as the hydrochloride, the compounds of the present invention are useful as local an sthetics and in the form of the free bases as activators for rubber accelerators.  Ethyl - 1 - phenyl - 2 : 5 - dimethylpyrrole - 3 - carboxylate is prepared from 1 - phenyl - 2 : 5 - dimethylpyrrole - 3 : 4 - dicarboxylic acid by treatment with acetic anhydride and then with ethanol followed by decarboxylation under reduced pressure.  Ethyl - 1- cyclohexyl - 2 : 5 - dimethylpyrrole - 3 - carboxylate is prepared by condensing diethyldiacetosuccinate with cyclohexylamine, hydrolysing, forming the anhydride with acetic anhydride, half esterifying and decarboxylating.
Patent GB-301269-A (GB)
Title: Vacuum cleaner
IPC: A47L9/02
Filed: 1928-04-25
Abstract: 301,269. Bode (nÚe Kruse), A. April 25, 1928. Vacuum cleaning-apparatus.-The fan c<2> is arranged directly above the suction. opening which is covered by a corrugated iron sheet formed with openings i<1>. A rubber brush m which may have teeth n is provided. The fan blades draw air through the openings. Part of this air passes to the outlet q and dust bag r. The part which strikes down on to the plate is deflected along the grooves over the ends of the plates and back below the plate to the openings. A guide roller q may be provided.
Patent GB-384175-A (GB)
Title: Process and apparatus for the manufacture of metal catalysts
IPC: B01J37/18
Filed: 1932-04-27
Abstract: <PICT:0384175/III/1> Metal catalysts are obtained by the reduction of oxides, hydroxides or carbonates, precipitated on carriers if desired, by passing them in powder form through a zone of heated hydrogen and then through a cold gas zone.  The hydrogen may be passed in the same direction, in countercurrent or perpendicular to the direction of flow of the powder.  In the arrangement shown in the Figure, the powdered material is supplied from the hopper 1, by means of the worm 2, to the distributer 3 which is periodically shaken by the cam 6.  The powder is shaken through a sieve 4 and falls through the reaction tube 8, which may be electrically heated, where it meets an upward current of hydrogen entering through the tube.  The hydrogen may be preheated in a heater 10. Excess hydrogen together with the gaseous products of reduction pass out through the tube 13 either to waste or to cooling and purification apparatus.  The hot reduced powder falls into the cooling zone 15 filled with stationary cooled gas, any particles adhering to the tube 8 being removed by the vibration caused by hammers 14.  The cold powder is removed by a worm 17.  The supply and discharge worms for the powder, the hammers and the supply of hydrogen can be made interdependent so that the apparatus works automatically.  If the hydrogen stream travels in the same direction as the powder, the hydrogen may act as an injector device for the powdered material.
Patent GB-732298-A (GB)
Title: Apparatus for casting refractory metals
IPC: B22D21/00
Filed: 1953-05-01
Abstract: Castings are made from alloys containing Ti 30 per cent, Al 40 per cent, Sn 30 per cent or Zr 60 per cent, Al 10 per cent, Sn 30 per cent.
Patent GB-879998-A (GB)
Title: Dual gain amplifier
IPC: H03G1/00
Filed: 1960-04-06
Abstract: 879,998. Valve amplifying circuits; gain control. HAZELTINE CORPORATION. April 6, 1960 [May 6, 1959], No. 12197/60. Classes 40(5) and 40(6) [Also in Groups XL(a) and XL(b)] An amplifier gives two outputs, one of fixed and the other of variable gain. Signals are applied to the grid 13 of a beam valve which comprises screen-grid 25, beam deflection electrodes 16a, b and two anodes 15a, b respectively. The proportion of the electron beam falling upon each of the anodes can be varied by varying the bias upon deflection electrodes 16a, b by means of ganged potentiometers 18a, b and an adjustable output is taken from anode 15b via terminal 23. The circuits of the two anodes comprise equal resistors 19a, b and are bridged by a centretapped resistor 20 from the centre of which is taken an output which does not vary as the potentiometers 18a, b are varied. The arrangement is used in a television receiver as video amplifier; the variable output being takeu to the picture tube as a signal of variable contrast while the fixed output is applied to the synchronizing circuits.
Patent GB-858829-A (GB)
Title: Improvements in lubrication of power hammers
IPC: F16N7/32
Filed: 1959-04-10
Abstract: 858,829. Force-feed lubricating. McKIERNAN-TERRY CORPORATION. April 10, 1959 [July 28, 1958], No. 12257/59. Class 12 (3). In a lubricating system for a power hammer 7 having a flexible steam or compressed air supply hose 9, an oil-feed hose 20 is carried by the steam &c. hose, e.g. the oil-feed hose may be coiled around the steam &c. hose or may pass therethrough so that heat is imparted to the oil, means being provided for preventing the oil supplied to the hammer from entering the steam &c. hose. Steam, for example, is supplied by a pipe 8 to the hammer 7 via the hose 9 and to a lubricator 10 via a " T "-pipe 12, the lubricator 10 comprising an upright cylinder 11 containing a slidable skirted-piston 13 engaging a fixed hollow piston 14 to form an oil reservoir 15. The raising of the piston 13, by steam pressure, forces the oil through an outlet at the top of the lubricator into a pipe 16, and the oil passes through a valve 17 and a gauge 18 into the hose 20 which is connected to a right-angled pipe 22 and an injector nozzle 23 held by the hammer. The oil is injected into the steamchest 24 of the hammer which is also supplied with steam from the pipe 9 via a nozzle 25 inclined at 26 so that the steam readily mixes with the oil, excess oil being collected in an annular well 27. The cylinder 11 has an opening 28 which supplies oil to lubricate the piston and and opening 29 which allows escape of steam. A whistle 30 may be connected at 29 to serve as a low-level indicator. A spring 19 prevents the piston 13 from being damaged when the steamsupply is cut off and also allows pressure to be applied to the maximum effective area of the piston 13.
Patent GB-279336-A (GB)
Title: Stabilized latex and method of making the same
IPC: C08C1/06
Filed: 1927-05-07
Abstract: 279,336. Rubber Latex Research Corporation, (Assignees of Day, M. R.). Jan. 3, 1927, [Convention date]. Latex, treating. - Latex is stabilized by the addition of blood or of its constituents such as defibrinated blood, serum, or preferably, " redend," i.e. haemoglobin. The amount added may vary between 1-10 per cent of the latex according to the degree of stability required. Latex so treated is not liable to coagulate as the result of agitation, addition of fillers &c., but may be coagulated by the addition of acids.
Patent GB-960132-A (GB)
Title: Improvements in or relating to animal feeding devices
IPC: A01K1/10
Filed: 1962-03-30
Abstract: 960,132. Animal feeding devices. V. B. HIBBERT. March 30, 1962, No. 12384/62. Heading A1M. [Also in Division E1] A device for use in feeding hay to animals comprises a base 13 formed by a pair of beams spaced apart by transverse cross-pieces 17 and having their ends connected by end-pieces 12 forming runners for sliding the device over the ground. A barrier 24 is supported at an oblique angle to the base by means of struts 18, 20 and has spaced pairs of cross-bars 26 defining feeding stations 28. The device is placed adjacent the foot of a haystack so that livestock reaching through the barrier move the device inwardly towards the stack. Chains 32 are provided for connecting together a number of the devices.
Patent GB-1520224-A (GB)
Title: Process for the recovery of lead from lead scraps onvolving electrolysis
IPC: C25C1/18
Filed: 1977-03-24
Abstract: 1520224 Recovering lead electrolytically LYIJYVALKOISTEHDAS GRONBERG BLYVITTFABRIKEN GRONBERG AB OY 24 March 1977 [25 March 1976] 12422/77 Heading C7B Pb is recovered from Pb scrap by mixing it at elevated temperature e.g. 40-120C with an  aqueous solution containing an alkali metal Cl, HCl and optionally H 2 SO 4  to dissolve Pb as PbCl 2 , separating the insoluble hard residue, cooling the aqueous solution to precipitate PbCl2, separating the mother liquor therefrom and fusion electrolyzing the PbCl 2  to give Pb. Cl 2  released during leaching of Pb scrap with the aqueous solution and by electrolysis of PbCl 2  may be mixed with H2 and burned to HCl for recycling.