baber/WOPTO huggingface dataset:
Patent GB-800643-A (GB)
Title: Improvements in fluid bed roasting of zinc ores
IPC: C22B1/10
Filed: 1956-08-27
Abstract: <PICT:0800643/III/1> Cadmium and/or lead components of zinc sulphide are concentrates, of particle size 4 to 65 mesh, are recovered by charging ore to a mildly agitated fluid bed 1 which is in direct contact with a more actively agitated bed 2 which is of substantially smaller cross-section (e.g. one-quarter of the size) and fluidizing with oxidizing gas through at least the single line 3 and optionally through lines 4 and 5 connected to the lower bed, the quantity of gas being such as substantially no oxygen remains in the SO2 gas rising to the upper bed.  The zinc sulphide concentrate fines are premixed with a binder, e.g. bentonite, zinc sulphate, or sulphate liquor, agglomerated and formed into pellets.  The roasted ore is discharged from the lower bed though part may be recycled to the lower bed while cadmium and/or lead as sulphides are recovered from the roasted gases of the upper bed at 6.  A minor proportion of carbonaceous material may be added to the ore concentrate.  The process also eliminates any antimony, arsenic or tin compounds present.  Specification 661,560 is referred to.
Patent GB-1470152-A (GB)
Title: Fuel injection pump for diesel engines
IPC: F02M59/22
Filed: 1975-06-19
Abstract: 1470152 Fuel injection pumps YANMAR DIESEL ENGINE CO Ltd 19 June 1975 [14 April 1975] 26146/75 Heading F1A In a fuel injection pump for a Diesel engine comprising a pumping plunger 5 reciprocable in a bore 4 to draw fuel into a plunger chamber 37, 38, 39 and deliver it past a delivery valve 19, the amount of fuel delivered is determined by the engine speed responsive axial adjustment of members 36, 31 which act as a stop for a piston 28 subjected on one side to the action of a spring 32 and on the other side to the pressure in the plunger chamber. During engine starting the member 31 is positioned against the piston 28 which is thereby prevented from moving so that all the fuel displaced by the plunger is delivered past the valve 19. By moving the members 36, 31 away from the piston 28 the correct delivery for normal operation can be controlled. To stop delivery the members 31, 36 are moved so far away from the piston 28 that all the fuel displaced by the plunger is absorbed by displacement of the piston 28. The member 36 is screwed into part of the pump housing 25 and is therefore rotated to effect axial adjustment of the member 31, the latter being in the form of a piston with a seal 34. A mechanism, Fig. 2 (not shown), comprising a manually operable regulator knob (46), a speedsensitive governor 62 and a system of levers controls rotation of the member 36.
Patent GB-1473048-A (GB)
Title: Process for polymerizing olefin
IPC: C08F4/60
Filed: 1975-06-19
Abstract: 1473048 Polymerization of olefins MITSUBISHI CHEMICAL INDUSTRIES Ltd 19 June 1975 [27 June 1974] 26177/75 Heading C3P Olefins are homopolymerized or copolymerized in the absence of water or oxygen and in the presence of a catalyst comprising (A) a solid component prepared by treating a mixture of a titanium tetrahalide, a vanadyl trihalide and a vanadyl alcoholate with an organoaluminium compound and (B) an organoaluminium compound. The transition metal compounds are preferably mixed then treated with the organoaluminium compound in an inert atmosphere in a hydrocarbon diluent. In the examples titanium tetrachloride, vanadyl chloride and tri-n-butoxy vanadyl are mixed in benzene, heated then treated with ethylaluminium sesquichloride or ethyl aluminium dichloride and the solid is separated from the medium to form component A which is used with triethylaluminium, triisobutyl aluminium or diethylaluminium ethoxide to polymerize ethylene or a mixture of ethylene and propylene in n-hexane in the presence of hydrogen. In comparative examples one of the vanadium compounds is omitted.
Patent GB-1188214-A (GB)
Title: Improvements in or relating to the manufacture of Coaxial Cables
Inventor: MCGEAN THOMAS JAMES
IPC: H01B13/22
Filed: 1967-06-07
Abstract: 1,188,214. Making electric cable; soldering; skelping; corrugating. WESTERN ELECTRIC CO. Inc. 7 June, 1967 [9 June, 1966], No. 26188/67. Headings B3A, B3E and B3R. The longitudinal seam of the outer conductor of a coaxial cable is sealed by overlapping the edges 60, 62, Fig. 4, orienting the conductor to form a gap 134, Fig. 12, which is directed downwardly, heating the conductor and providing solder in the gap. The cable is formed from a tin-plated steel tape 12, a narrower conductive copper or aluminium tape 14, and an adhesive band 20, Fig. 1, which joins up with a centre conductor 36 carrying spacer discs 42. The edges of the tapes are aligned by a device 24, Fig. 1, the tapes are heated at 26 so as to soften band 20, so that rolls 28 can squeeze the tapes to form a ribbon 30. After air cooling, the ribbon is corrugated by rolls 32 and then passes to former 34, Fig. 5, whereupon the ribbon is rolled into an outer-conductor 44 around the conductor 36. An adjuster 46 rolls conductor 44 so that the edge 60, Fig. 4, has a smaller radius than its adjacent edge 62, whereupon a sizing device 48 overlaps the edges and the cable passes to a soldering device 50, from whence it passes through a capstan 10 on to a take up spool 54. The stand 68, Fig. 5, can be tilted by a device 69 so that the seam is located at 45 degrees to the horizontal, Fig. 4. Soldering device.-The soldering device 50 comprises an induction heating apparatus 100, Fig. 9, movable relative to cable 49, a rosin-cased solder wire 108 fed from a spool 110 towards the cable by a gear 112, a guide tube 116, and a cooling trough 126. The power supply to the coil 96 of apparatus 100, and the control 124 of the solder feed motor 122, are both connected to the capstan 10, so as to vary their values according to the feed rate of the cable. The molten solder flux 136, Fig. 13, is drawn into the seam by capillary action.
Patent GB-430740-A (GB)
Title: Improvements in and relating to the manufacture of powdered vegetable glues
IPC: A61K31/46
Filed: 1933-09-22
Abstract: 430,740. Adhesives; dextrin. SOC. H. GOUTHIERE ET CIE, 64, Rue de Courcelles, Rheims, Marne, France. Sept. 22, 1933, No. 26244. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 28, 1934]. [Class 121] [See also Group III] Powdered vegetable glues are manufactured by atomizing milk of starch or fecula on to an appropriate heated surface, preferably one or more rotating metal cylinders, or into a warm atmosphere, so as to transform it instantaneously into a paste of starch or glue, immediately dessicating this paste and powdering it. The temperature of the heated surface or atmosphere is 140-180‹. Apparatus for carrying out the process comprises a mixer for the formation of the milk of starch or fecula, a pump to convey the milk to a row of jets with atomizing orifices discharging into a chamber with a warm atmosphere or on to a warm surface. In the apparatus shown in the Figure, the jets 10 discharge the milk on to the rotating cylinder 11 which is heated internally by steam under pressure and from which the dried paste is detached by means of the scraper 12 and falls into the trough 13.
Patent GB-1506876-A (GB)
Title: Method of protecting disc brakes from rust
IPC: F16D55/00
Filed: 1975-06-20
Abstract: 1506876 Rust prevention FORD MOTOR CO Ltd 20 June 1975 26245/75 Heading B8C Rusting of parts of a vehicle wheel braking arrangement 1 is inhibited by enclosing a rust inhibiting vapour between the arrangement and a cover 3 fitted over the front of the arrangement. The cover is formed from a front sheet 16 having an approximately oval aperture 19 and welded along a seam 18 to a back sheet 17 having a D-shaped aperture 20. A pocket is defined between the two sheets into which disc 10 and shield 11 fit with sheet 17 acting as an inturned flange behind the shield. A sheet 2 impregnated with the vapour emitting chemicals may be placed over the arrangement 1 before the fitting of the cover, with the corners of the sheet being folded down behind the shield 11. Alternatively the cover 3 may carry the vapour cooling substance, or the sheet 2 may have a flange to engage the back of the shield 11 and thus replace the sleeve 3.
Patent GB-270160-A (GB)
Title: An arm chair which can be used at will as a fireside chair, music seat, or card table
IPC: A47C1/028
Filed: 1926-10-21
Abstract: 270,160. Wadham, V. S. Oct. 21, 1926. Seats convertible into tables; adjustments.- An arm chair can be used as a chair with a low seat, Fig. 1, as a music seat of normal height, Fig. 2, or as a table: The seat member S carries projecting members R which can engage slots B, and a tray D, slidable from below the seat, can be placed upon the arms A to form a table. A. receptacle F for music is provided.
Patent GB-741415-A (GB)
Title: Improvements in or relating to velocity modulated electron discharge devices for effecting frequency modulation
Inventor: PEARCE ALBERT FREDERICK
IPC: H01J25/24
Filed: 1951-11-09
Abstract: 741,415. Velocity-modulated tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 21, 1952 [Nov. 9, 1951], No. 26249/51. Class 39 (1). [Also in Group XL (c)] A reflex klystron suitable for effecting frequency modulation is provided with means, such as one or more electrodes in the drift space, to set up in this space a non-parabolic curve of potential distribution having in the region of the zero equipotential surface a point of inflection and is substantially but not accurately symmetrical about the point of inflection over a small fraction of the distance between the centre of the resonator and the reflector and over this small fraction has an increasing slope with increasing distances from the point of inflection, so that linear frequency modulation can be effected over a wider frequency range. The modulating voltage is applied to the reflecting electrode and it is shown that for linear frequency modulation, i.e. #-# o αVR-VR<SP>o</SP>, where #, # o  are the frequencies at reflector voltages V R , V R <SP>o</SP> respectively (# o , V R <SP>o</SP> being reference points at the centre of the mode) tan[2## o (T-T o )]α(V R -V R <SP>o</SP> where T, T o  are the corresponding electron transit times. For small variations in reflector voltage, represented by the full and dotted lines on Fig. 1, the distance B,B<SP>1</SP> and consequently T-T o  are approximately linear functions of V R -V R <SP>o</SP> since the part of the curve adjacent the point of inflection is approximately linear. For larger variations in reflector voltage, B, B<SP>1</SP> and T-T o  change more slowly with VR-V R <SP>o</SP> owing to the increasing slope of the curve. However, tan[2## o (T-T o )] is increasing faster than T-T o  so that these two factors may be made to cancel over a limited range, thus giving a wider linear modulation range. In one form, Fig. 3, the desired potential distribution is achieved by the provision of apertured electrode 13 having an axial thickness of about one-tenth of the resonator 9, reflector 12 spacing and maintained at approximately cathode potential. The modulating signals are applied to 12 and/or 13. They may be applied to both electrodes 12, 13 with unequal amplitudes, e.g. by connecting the electrodes to tapping points on a potential divider fed by the signal source, Fig. 4 (not shown), electrode 13 may be replaced by two grids at slightly different potentials near cathode potential, Fig. 5 (not shown), or by a. single honeycomb-shaped grid of substantial axial length. Specification 583,214 is referred to.
Patent GB-1535285-A (GB)
Title: Device for determining the angle of construction of contact lenses for astigmatics
IPC: G06G1/00
Filed: 1976-06-24
Abstract: 1535285 Mechanical calculators for lenses VERGO 24 June 1976 [26 June 1975] 26338/76 Heading G4B A calculator for determining the construction angle c of contact lenses for astigmatics comprises in combination a dial I<SP>1</SP> graduated over an arc of 180 degrees; a relatively rotatable concentric disc 2<SP>1</SP> having two successive graduated scales running in the same continuous clockwise direction each in the range 0 to 180 degrees, the said disc carrying a mark   representing the angle of equilibrium —; a second relatively rotatable disc 3<SP>1</SP> having a   mark representing the refraction angle # and a mark C against which the construction angle is read-off since the construction angle is given by   the formula #=#-—. In the above arrangement the angle c is read through a window arrangement which in a modification is dispensed with for details of which modification and modus operandi, Figs. 1-6 (not shown), should be referred to. In a further modification, the marks for angle # and c are formed by the ends of pointers. These pointers may be 180 degrees apart or at a lesser angle. In the latter case the angle of equilibrium does not coincide with the end of the scales on the disc 2<SP>1</SP>.
Patent GB-1072276-A (GB)
Title: Improvements in and relating to electron multipliers
Inventor: VESTAL MARVIN LEON
IPC: H01J43/22
Filed: 1965-06-22
Abstract: 1,072,276. Electron multipliers. WILLIAM H. JOHNSTON LABORATORIES Inc. June 22, 1965, No. 26356/65. Heading H1D. In an electron multiplier, each .dynode 10 has a plurality of passages 11 therethrough, each passage sloping outwardly in crater - like fashion from a hole 20 of radius r on the output side in such fashion that the surfaces of each set of four adjacent passages arranged at the corners of a square define a cusp at radius r+t from the centre of each passage, t being the thickness of the dynode. Each dynode, except possibly the first, has a thin focusing plate 13 in contact with its input face, apertures 15 in plate 13 being aligned with the cusps of the contacting dynode and with the passages through the dynode of the preceding stage. The passages through dynodes 10 may be formed by etching, all but holes 20 in the exposed surfaces of the dynodes being masked. The cusps may be rounded off to inhibit field emission. The dynodes and focussing plates may be circular and mounted on rods with insulating rings 16 between adjacent stages. Alternatively, the rings 16 may be of electrically resistive material, an accelerating voltage being applied between the first stage and anode plate (25), Fig. 3 (not shown). The dynodes may be of Be or an Ag-Mg alloy with oxidized surfaces and the rows of passages next adjacent perpendicular diameters of each dynode may be offset from these diameters by a quarter of the distance between adjacent holes so that all the dynodes may be identical, adjacent dynodes being rotated through 180 degrees relative to one another. The first stage of the multiplier may include a wire mesh grid instead of a focusing plate, or such as grid may be provided, spaced and insulated from the first stage. The multiplier may be used in a mass spectrometer.
Patent GB-263674-A (GB)
Abstract: 263,674. Brunner, J., and Scheele, E. June 17, 1926. Preserving animal and vegetable substances.- Natural-history specimens, such as insects, plants, reptiles, fishes, amphibia, and crustacea, and physiological specimens are preserved by embedding in a fluid or soft resin-like condensation or polymerization product which permeates the specimen, and then heating to convert the product into a solid mass. Any condensation product may be employed, for example those obtained from phenol and its derivatives and an aldehyde, from methylene chloride or sulphur and phenol, from aromatic amines and sulphur, and from urea or its derivatives or aromatic amines and aldehydes. The phenol-formaldehyde and urea-formaldehyde products are especially suitable, the unreacted phenol and formaldehyde acting as preservatives. With certain groups of animals, e.g. reptiles, the water is first removed with alcohol, and formaldehyde may be added. Applications of the method are described. The embedding of specimens in celluloid, colloxylin, and resin is referred to.
Patent GB-764471-A (GB)
Title: Improvements in floorings
Inventor: THOMAS DERRICK REGINALD
IPC: B62D25/20
Filed: 1950-10-30
Abstract: 764,471. Floors. BRITISH ALUMINIUM CO., Ltd. Oct 17, 1951 [Oct. 30, 1950], No. 26430/50. Class 20(4) Non-skid floors for commercial vehicles, ware-houses, &c., comprise extruded, or moulded, light metal, or alloy, plank-like members 1 and connecting members 13, the latter, having side grooves defined by flanges 14a, 16 and ribs 15 to receive the corresponding flanges 1a, 12 or ribs 10 of the members 1, being bolted to crossbearers of the floor, not shown, to hold the assembled floor in position. Ribs 8 brace the members 1, the thickened part above each rib being grooved to receive non-skid inserts 7. Non-skid inserts 18 are also provided in the connecting members 13. In an assembled floor the bases of the flanges 16 on the ribs 15 are slightly higher than the bases of flanges 11 on the ribs 10 1  this ensures that the members 13 firmly clamp the members 1 down on to the crossbearers. The width of the whole floor assembly can be adjusted by varying the extent to which the flanges a, 12 enter the corresponding grooves on the connecting pieces 13. Where it is inconvenient to fit a connecting piece 13, e.g. adjacent a wall 27 of the vehicle, a make-up piece 21, Fig. 3, is used. In the modification, Fig. 3, the members 1 have a central rib 5a above a single bracing rib 8, the non-skid members being omitted from the members 1, 13.
Patent GB-901592-A (GB)
Title: Applicator for liquid adhesive in box erecting machines
Inventor: PAGENDARM RICHARD VINCENT
IPC: B31B3/46
Filed: 1960-07-29
Abstract: <PICT:0901592/III/1> <PICT:0901592/III/2> In a box erecting machine of the die-and-plunger type a measured volume of adhesive is ejected through a nozzle in the form of a droplet against the prefolded blank, means for actuating the adhesive feeding device being timed in relation to the movement of the plunger.  The feeding device has pins for ensuring that the nozzles remain unobstructed when the machine is stopped.  Pressure is applied to the adhesively coated areas of the box whilst the box is in the die.  Each blank B is delivered from a magazine by suction feet mounted on members 48 and swung to a position beneath the plunger 30 where it is held by four catches 51 and side flaps F are pre-folded to lie adjacent the nozzle containing faces of the four adhesive applicators 32.  The exact position and angle of each applicator can be adjusted.  When the plunger descends, the side walls S of the blank are first folded to lie against the plunger and then flaps F fold to lie against the adjacent sides of the plunger, finally the end panels E are folded upwardly.  The adhesive is applied over an area 57 which area can be varied by turning a knob 62.  The adhesive applicator (Fig. 4) comprises a casing 36 one wall 38 of which has perforations 39 arranged in sections I-III and a base carrying pins corresponding to the perforations.  The base consists of a main portion 58 and second and third bases 65, 66 each corresponding to the sections I-III. Adhesive contained in a reservoir 41 is pumped to the devices 32 through pipes 40.  Initial movement of the knob 62 moves the main base by means of a pin 60 and a slot 601 sufficient to withdraw the pins from the holes in section I.  Further rotation of the knob moves base 65 withdrawing the pins from the perforations in section II and still further rotation causes the pins to be removed from the perforations of section III.  When the machine is stopped the knob is turned to move all the pins into the perforations thereby keeping the perforations clear of adhesive.  In a modification, a single base is provided having a stepped edge in which the pins are mounted, the pins being of different diameter in the different stepped portions of the base. Specifications 901,591 and 901,593 are referred to.
Patent GB-263750-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B31/14
Filed: 1926-10-22
Abstract: 263,750. Krupp, Grusonwerk Akt.- Ges., F. Dec. 31, 1925, [Convention date]. Rolling.-A roll housing is provided with a pivotally or detachably mounted side part 6 which can be turned down as shown to facilitate changing rollers. The upper end of the side 6 is secured at the top by swing bolts. The top roll bearing is carried by suspension bolts 9 while the bottom roll bearings are secured by an adjustable wedge 11, the intermediate roll bearing being secured by keys 10. The hinged side may also include the top of the housing.
Patent GB-929654-A (GB)
Title: Improvements relating to the isomerisation of paraffin hydrocarbons
IPC: C07C5/27
Filed: 1960-07-29
Abstract: A process for the isomerization of C4 or higher paraffin hydrocarbons boiling up to 400 DEG F. comprises contacting the hydrocarbons in the presence of hydrogen with a catalyst comprising an aluminium halide and a Group VIa or VIII metal supported on a refractory oxide, the catalyst having been heated at a temperature of from 650 DEG -750 DEG F. to remove unreacted aluminium halide.  The aluminium halide, e.g. AlCl3, is preferably added to the refractory oxide, e.g. Al2O3, after the hydrogenating metal, e.g. Pt or Pd has been added.  The hydrocarbons to be isomerized are preferably pentanes, hexanes or mixtures thereof.  Separation of normal paraffins from the feed for conversion or from the product for recycle may be effected as is known by the use of molecular sieves.  The isomerization of n-hexane is exemplified.  Suitable conditions for liquid or vapour phase isomerization are 50-400 DEG F., 0-2,000 p.s.i.g., 0,05-10 v./v./hr. and a hydrogen to hydrocarbon mol. ratio of 0,01-20:1 g.  The feedstock may contain up to 1% (wt.) of added hydrogen halide. Specifications 822,998 and 876,462 are referred to.
Patent GB-677046-A (GB)
Title: Improvements in steam boilers
IPC: F22B37/14
Filed: 1950-10-30
Abstract: 677,046. Steam generators. KOHLENSCHEIDUNGS-GES. Oct. 30, 1590 [Oct. 29, 1949], No. 26477/50. Class 123(ii) Instead of a steam drum of a boiler a number of small outside chambers 4 each receive the wet steam from one or a small group of water tubes 2, whereby the steam passes up to a superheater 16 or to an intermediate steam collector 15, while the water passes down through pipes 3 to bottom collectors 6, the cross sectional area of each chamber 4 equalling or exceeding the total cross sectional area of its single or group of water tubes, and the chambers extend above and below the permitted maximum and minimum water level. The pipes 3 and the water tubes 2 being connected to the collectors 6, form water current circuits. The chambers 4 are directly connected together by pipes 10 on the steam side and by pipes 8 on the water side and may also be connected by pipes 14 to common water collectors 7 which also drain through the pipes 3 to bottom water collectors 6. 17 are the burners. The chambers may also be used as heat accumulators by using a water level indicator of many times the usual range for boilers.
Patent GB-246930-A (GB)
Title: Improved method of and apparatus for the extraction and recovery of volatile liquids
IPC: C11B1/10
Filed: 1924-11-08
Abstract: 246,930. Ironside, E. A. Nov. 8, 1924. Volatile liquids, recovering.-Apparatus for recovering volatile solvent by passing the vapours through a condenser is combined with an adsorber such as that described in Specification 238,984, [Class 55 (ii), Gas manufacture &c.], containing a solid adsorbent such as active charcoal or silica gel to recover final traces of solvent. As applied to apparatus for treating hides with petrol &c., the hides are suspended in an extracting-chamber 1 and petrol is run in from a tank 2. The solution of grease in petrol is run into a still 12, from which vapours pass to a condenser 4. Condensate passes through a decanting vessel 7 to separate water and is returned to the tank 2. Solvent which remains in the hides is removed by passage of steam or air under pressure through the chamber 1 and either through a pipe 3 and the condenser 4, or through a pipe 10 and an adsorber 9. When the adsorbent is saturated, steam is passed through it and the vapours passed into the condenser 4.