baber/WOPTO huggingface dataset:
Patent GB-1470566-A (GB)
Title: Gas treatment plant
IPC: B01D53/34
Filed: 1975-03-26
Abstract: 1470566 Gas scrubbing plant DOUGLAS ROWNSON INTERNATIONAL Ltd 26 March 1975 [26 April 1974] 18508/74 Heading B1R [Also in Division Cl] A gas treatment plant comprises a gas-tight housing 20, gas inlet 21 from industrial plant 1, clean gas outlet 22 and treatment chambers A, B and C separated from each other by gas/liquid separation 5, 5', a final separator 5" and packing 4, 4', 4" extending across the gas flow path, the packing being sprayed with treating liquid from nozzles 3, 3', 3" and the liquid being collected in open-topped collecting chambers 6, 6', 6" and recycled to the nozzles via pumps 7, 7', 7". The packing may be mesh screens 23 containing plastics balls 25 (Fig. 2), stacked sheets 200 with claw-like projections and sinusoidal curves (Fig. 7) or honeycomb structures.  In an alternative embodiment, the liquid may be fed from closed tanks 306 (Fig. 8, not shown). An effluent gas comprising oxides of nitrogen and HCl is treated first with amido sulphamic acid then alkali and finally water in the chambers. Pickling plant gases containing solid metal particles are first treated with HCl, then alkali and finally water. In addition, potassium permanganate solution and soluble dithionite may be used to reduce odour in the gases.
Patent GB-349801-A (GB)
Title: Improvements relating to belt transmission mechanism for paper-making machines
IPC: D21F7/02
Filed: 1930-06-18
Abstract: 349,801. Paper - making machines. BERTRAM, J. N. and GRAY, F. W., 141, Leith Walk, Edinburgh. June 18, 1930, No. 18581. [Class 96.] In belt transmission of the type used in paper machines, the driven pulley 2 and its spur gearing are enclosed in a housing 6 and are incapable of. shifting movement and the belt is slackened or tightened by movement of the driving pulley 3. For this purpose the pulley 3 is mounted in a cradle 7 on an arm pivoted at 8 and may be raised or lowered by means of a connecting-rod 9 provided with a turnbuckle 13 or by means of a hand-lever on a crank 11.
Patent GB-983867-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
Inventor: SPASH DAVID ISAAC
IPC: H05B6/78
Filed: 1961-05-23
Abstract: 983,867. Microwave filters. RADYNE Ltd. May 9, 1962 [May 23, 1961], No. 18585/61. Heading H1W. Coupling between adjacent ovens 6 of a multiple - oven dielectric heating apparatus is reduced by conductive partitions 9, 10 in the duct 7 connecting the ovens. A conveyer 4 passes between the partitions which are spaced along the duct at distances which are small in comparison with a quarter wavelength at the fundamental operating frequency of any one of the ovens. The height of each partition is about one quarter wavelength at the frequency at which strong attenuation is desired. Specification 882,441 is referred to.
Patent GB-121509-A (GB)
Title: Improvements in or relating to Machines for Inserting Fasteners in the Manufacture of Boots or Shoes.
IPC: A43D69/02
Filed: 1917-12-15
Abstract: 121,509. British United Shoe Machinery Co., (United Shoe Machinery Co.). Dec. 15, 1917. Rands and welts, attaching.-A welt guide for use in a machine for guiding a welt, rand, or similar strip to a point where fasteners are driven into it to secure it to a boot or some part thereof is described as applied to a machine of the type described in Specification 1494/93 but modified to deal with string nails, and comprises a main part 14 having a welt-guiding slot 15 at its forward end, and two welt-edge guides 16, 18, the part 14 being adjustably secured by screws 30 to a shank portion 12 of a guard plate 2, which is furnished with the usual hardened cap plate 4 and with a passage 6 for the fasteners and the awl. The edge guides 16, 18 are extended forward from the slot 15 under the guardplate 2 to points opposite the passage 6, while the slot 15 points toward the lower face of the guide-plate to direct the welt towards the point where the nail is to be inserted. The edge guide 16 is removably secured by a tongue and groove and a screw 22 to the part 14, while the edge guide 18 extends into the slot 15 and is adjustably secured by a screw 26 to a lug 28 projecting from the part 14. Adjustment of the edge guide 18 provides for a change in the width of the welt used, while adjustment of the part 14 along the shank 12 varies the position of the welt guide as a whole to change the distances from the edges of the welt at which the nails are inserted. To guide the boot, the upper bears against an edge gauge in the form of a roller 32, which is mounted to rotate freely on a stud 34 rising from a bracket 36, the upper forward edge of the roller being located to overlap the welt-edge guide 18 so as to assist in positioning the welt. The bracket 36 is provided with teeth to interlock with similar teeth on a slide 38, and may be adjusted in the direction of work feed bv loosening a clamping-bolt 40. To provide for adjustment at right-angles to the direction of feed, as when passing from the forepart to the shank of the boot, the slide 38 is secured by a bolt 46 to a rack bar 44, which is spaced from the slide by a depending part 50 located in a slot 52 in the shank 12. The bar 44 gears with a small pinion (not shown) adapted to be rotated by movement of a hand-lever; adjustable stops 56, 58 limit the extent of movement of the slide 38.
Patent GB-938457-A (GB)
Title: Drive system for false twisters
Inventor: GASSNER HANS
IPC: D02G1/06
Filed: 1962-05-15
Abstract: 938,457. False-twist tubes. G. SCHAFER, O. SCHAFER, G. SCHAFER Jun., and O. SCHAFER Jun., [trading as KUGELFISCHER GEORG SCHAFER & CO.]. May 15, 1962 [May 17, 1961], No. 18670/62. Class 120 (2). Means for driving a false-twisting tube comprises laterally-spaced pairs 1, 2 and 3, 4 of coaxial discs, a rotary tube 13 between the pairs, and magnetic means 10 attracting the tube against the disc-peripheries, the tube having two axially-spaced collars 11, 12 with outwardly-tapered cross-sections; each collar being adjacent to a polepiece having a curved recess 18 of smaller radius of curvature than that of the associated collar, the recess being opposite the collar. The discs of each pair are flanges of a spool of synthetic resin one of which has an axle 7 in contact with a drivebelt 8, the other being an idler. Both spools are carried by a tiltable support. The magnetic means may be a horse-shoe type magnet so disposed that each pole lies between the angle formed by radii of the associated discs each of which is normal to the tangent common to the tube and the corresponding disc. The magnetic flux is concentrated at the edges 19, 20 of the recess and passes from one pole to the other through the tube in the direction in which the thread travels. The collars are arranged a short distance from the discs. The arrangement minimizes axial movement and tilting of the tube and the development of heat and braking effects by eddy-currents.
Patent GB-1348959-A (GB)
Title: Apparatus for heat-treatment of filaments
IPC: D01D5/12
Filed: 1972-04-21
Abstract: 1348959 Heating fibres EI DU PONT DE NEMOURS & CO 21 April 1972 [23 April 1971] 18671/72 Heading D1F In an open or enclosed apparatus for continuously heating running filaments an array 1 thereof passes over guides 12 to be maintained a desired distance above a planar surface 4 of a jet base 5 and between side walls 8. Hot pressurised fluid 13 e.g. air or steam, entering one or two ports as at 6, flows through slot orifice 7 which is bounded by surfaces 14 and 15 intersecting surface 4 at sharp edges 17 and 18, the angle 16 being 15-45‹. Fluid emerging at supersonic velocity from the orifice passes upwardly through the filaments, effecting a separating and heating action thereon, then downwardly through the filaments and thereafter flows along and parallel to surface 4 and whilst continuing to heat the filaments. Hot fluid also circulates in low pressure zone 19. Spent fluid is diverted from the filaments by a coanda surface 9 having side walls 10. In the fluid entry passage, distribution plates (or slot orifices) 23 and 24 may follow a plenum chamber 22. According to other embodiments of apparatus, Figs. 3-5 (not shown) the bounding surfaces such as 14 and 15 provide successively converging and diverging passages optionally with a parallel sided throat therebetween and the edge, as at 18, may be chamfered. In passing through the apparatus the filaments may be drawn e.g. with a draw ratio of 4.2.
Patent GB-951195-A (GB)
Title: Automatic electronic system for detecting sliver ruptures in textile machines
IPC: D01H13/16
Filed: 1960-05-26
Abstract: 951,195. Stop motion. A. V. GURI. May 26, 1960 [May 30,1959], No. 18691/60. Headings DID and D1F. In a roving frame, a system for giving a warning or stopping the machine when the sliver breaks comprises a source 1 of electromagnetic radiation and a device 2 sensitive to changes in radiation received from the source disposed so that the path of the radiation passes adjacent to the rotational path traced out by the associated flyer arms; when a sliver breaks the radiation is periodically interrupted and pulses are generated by the photo-electric device which are used to actuate a stop motion or a warning device or both. The pulses are amplified at 4, rectified at 5, dipped at 6 to reduce variations in amplitude, and an integrating R/C network 7 and a thyratron 8 which when fired energizes a relay 9 controlling a circuit 10 are also provided. The network 7 may include a leakage resistor so that the triggering voltage has to be maintained for a given time. The network 7 may be dispensed with, in which case the relay 9 is a delayed-operation network. The source of radiation may be associated with a group of spindles or all the spindles on one or both sides of the machine.
Patent GB-1129798-A (GB)
Title: Improvements in or relating to blank cartridges
IPC: F42B8/04
Filed: 1966-04-28
Abstract: 1,129,798. Blank cartridges. RHEINMETALL G.m.b.H. 28 April, 1966 [8 May, 1965], No. 18703/66. Heading F3A. A blank cartridge for simulating the noise of a live round comprises a powder charge 4 enclosed within a bag 3 and a tamping plug 2 spaced apart within and secured to the walls of a synthetic plastics cylinder 1 of low inflammability which melts and disintegrates on firing the powder charge. The tamping plug is made from an unmoulded, paste-like mixture of a filler, a synthetic resin and a hardening binding agent and disintegrates on leaving the barrel of the gun in which the cartridge is fired. A spacer 6 in the shape of a cross separates the powder charge and plug. The spa@er and cylinder may be made of foamed polystyrol.
Patent GB-662818-A (GB)
Title: Improvements in spectrophotometers intended to measure the transparency or opacity of a substance, in particular to infra-red light
IPC: G01J1/16
Filed: 1949-07-15
Abstract: 662,818. Absorbtiometers. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES DIX O.N.E.R.A. July 15, 1949 [Aug. 24, 1948], No. 18718/49. Class 40 (iii). In a photometer for measuring opacity or transparency particularly to infra-red rays in which a photo- or thermo-sensitive element compares light received alternately from a source after having passed through the sample with that received direct, the ratio of the maximum amplitudes of the output voltages of the sensitive devices under these two conditions is determined. As shown, infra-red rays from a source are reflected by mirrors 4, 5 so as to meet at right angles at the point 6, the sample 5 being included in one of the light paths. A wheel 7 has two quadrants with a mirror facing, one blackened, and one cut away so that a sensitive element 11 situated in a monochromator 10 receives light direct from the source, then darkness and then light having passed through the samples. The output of the element 11 is amplified at 12. By means of a rotary switch driven with wheel 7 the amplifier output is switched as the sensitive element voltages pass through their two maximum values alternatively to a pair of condensers 20, 21, the output voltages across which are amplified at 22, 24. The output of amplifier 24 is measured direct while that of amplifier 22 is fed back to amplifier 12 to maintain the comparison voltage reading of meter 23 independent of source variations so that the voltage ratio is indicated direct. In a further embodiment, Fig. 5, condensers 21, 20 are alternately charged from amplifier 12 and smaller condensers 29, 28 in parallel with those also charged. The capacity of these condensers is continuously varied at a relatively high frequency and the A.C. developed across resistors 31, 30 amplified at 24, 22 and fed to crossed coils 25, 26 of a ratiometer. Feed-back from coil 26 to amplifier 12 may be employed. Resistors 33, 32 in series with the coils develop a voltage which opposes the charging voltage of condensers 29, 28 in that the current in the coils is a faithful indication of the maximum voltages.
Patent GB-647485-A (GB)
Title: Improvements in or relating to the automatic starting and stopping of gas engines
IPC: F01L13/00
Filed: 1947-07-14
Abstract: 647,485. Automatic temperature control systems; starting prime movers. U.S. THERMO CONTROL CO. July 14, 1947, No. 18727. Convention date, Nov. 16, 1939. [Class 38 (iv)] The temperature, pressure or humidity of an enclosed space 10 is controlled by apparatus including a gas engine 29 (Fig. 1), and a starter generator 37 operable in response to deviations in the variable to be controlled. As applied to temperature control (Fig. 2), a thermostat 11 is adapted to close the circuit of a battery 43 when the temperature exceeds a predetermined value completing a circuit to a master relay 70 and to a high-tension coil 68 connected with the distribution and ignition system of the gas engine. Also included in the circuit are safety devices 44, 62, 55 and 73 adapted to break the circuit in the event of engine over-heating, lack of pressure or excess of pressure in a compressor 16 and excess of current in a relay 84 controlling the gas engine choke 111. Operation of the master relay 70 completes a second battery circuit to the field coil 95 of the starter generator armature 97 through a relay 93. At the same time current passes through generator field coils 96 and through the armature 97 which is thereby caused to generate current to recharge the battery 43. The relay 93 is adapted to operate only when the battery current passes (the subsequent generator current being insufficient to cause operation), thus completing the battery circuit to the relay 84, causing the choke 111 to be operated only on the initial starting of the generator. The choke is operated through a thermostatic arm 107 so that if the engine is already hot, operation of the relay 84 will not operate the choke 111. A humidostat 166 is also adapted to function upon the operation of the thermostat 11. The gas engine 29 (Fig. 1) drives the compressor 16 furnishing a condenser 21 with compressed gas through a reversible valve 19. The gas is then passed to a compressed refrigerant tank 23 and thence to the header 25 of an evaporator heat exchanger 12 from whence it returns via valve 19 to the compressor 16. Air is circulated through the evaporator 12 and space 10 via ducts 13 and 14 by a blower 15. When the apparatus is used for cooling the space 10, defrosting of the cooling coils (not shown) connected to the header 25 is effected by an aneroid 114 responsive to decreases in air pressure in a space 113. Expansion of the aneroid completes a circuit to a relay 121 (Fig. 2), the condition of which determines the direction of rotation of a reversible motor 129 operating the valve 19. The motor is restricted to a 90 degree movement by a lever 158 connected on its shaft and co-operating with circuit breaks 151 and 156. Energization of the relay 121 by the aneroid causes the motor to position the valve 19 for defrosting, whilst in the de-energized state of relay 121 the motor positions valve 19 for cooling.
Patent GB-697827-A (GB)
Title: A new or improved frit composition for vitreous enamels
IPC: C03C8/08
Filed: 1951-08-09
Abstract: 697,827. Glass composition. TITAN CO., Inc. Aug. 9, 1951 [Aug. 10, 1950], No. 18820/51. Class 56. A frit composition capable of forming a vitreous enamel which matures between 650‹ C. and 825‹ C. comprises the following weight percentage composition, TiO 2  6-12, P 2 O 5  18-37, Al 2 O 3  19-39, B 2 O 3 , 7-37, alkali oxide 14-23, the sum of the alkali oxide and the P 2 O 5  being between 58 and 85 per cent of the sum of the alkali oxide, P 2 O 5 , and B 2 O 3 ,the Al 2 O 3  being at least 23 per cent if the B 2 O 3  is less than' 22 per cent, the P 2 O 5  being less than 31 per cent if the B 2 O 3  is 22 per cent or more, and the alkali oxide consisting of Na 2 O 20-100 per cent, K 2 O 60-0 per cent, Li 2 O 20-0 per cent. Preferred compositions maturing between 650‹ C. and 725‹ C. comprise the weight percentage composition, TiO 2  6-12, P 2 O 5  18-37, Al 2 O 3  19-36, B 2 O 3 11- 33, alkali oxide 18-23, the sum of the alkali oxide and P 2 O 5  being between 62 and 83 per cent of the sum of the alkali oxide, P 2 O 5 , and B 2 O 3 , the Al 2 O 3  at least 23 per cent if the B 2 O 3  is less than 22 per cent, the P 2 O 5  less than 21 per cent if the B 2 O 3  is. 22 per cent or more, and the alkali oxide consisting of Na 2 O 50-100 per cent, K 2 O 30-0 per cent, Li 2 O 20-0 per cent. The batch composition, method of preparation, and final composition of four examples are given.
Patent GB-586365-A (GB)
Title: Improvements in or relating to clips or clamps for use in connecting together structural members
IPC: E04G7/16
Filed: 1944-10-02
Abstract: 586,365. Scaffolding &c. clamps. MILLS SCAFFOLD CO., Ltd., and MACBETH, A. Oct. 2, 1944, No. 18842. [Class 20 (ii)] A clip or clamp for detachably connecting structural members employed in the erection of scaffolding, staging, shuttering, fencing &c. comprises two substantially U-shaped members, disposed back to back, the arms of which may be drawn towards one another for gripping purposes. at least one of the arms having a hooked end. The clamp may have a pair of U-shaped members 1, 2 connected back to back by a swivel 3, the arms 13, 14 of the member 2 having hooked ends 15 and being of resilient metal so that they can be tightened by a bolt 16 and nut 17. The member 1 may have splayed ends 12 one arm 4 having an elongated hole 10 to receive the shank of a bolt 7, the arm 5 having an openended slot 9 for the reception of the bolt. On tightening the nut 8, the splayed ends 12 force the bolt towards the member being clamped.
Patent GB-1040444-A (GB)
Title: Improvements in ramjet engines
Inventor: HEMMING NOEL RICHARD
IPC: F02C7/042
Filed: 1962-05-16
Abstract: 1,040,444. Ramjet engines. BRISTOL SIDDELEY ENGINES Ltd. April 29, 1963 [May 16, 1962; Aug. 22, 1962], Nos. 18864/62 and 32262/62. Heading F1J. [Also in Division B7] A ramjet engine comprises a duct having an intake portion which converges to an intake throat, a combustion chamber portion, and a covergent-divergent expansion nozzle portion which includes a nozzle throat, one of the walls of the duct being movable relatively to another so as to vary the intake throat area, the crosssectional area of the combustion chamber at all points along its length, and the expansion nozzle throat area simultaneously in the same sense, means being provided responsive to the flight mach number for moving the wall to reduce the said areas with increasing flight mach number and vice versa. A ramjet engine is shown mounted in an aircraft wing, part of the undersurface of the wing being utilised as an air intake ramp 10, and an expansion ramp 11 extending through the wing. The expansion ramp 11 extends forwardly to a part 12 which consitutes the upper wall of a convergentdivergent nozzle throat 13 and to a part 14 which constitutes the upper wall of a combustion chamber 15. All these parts are fixed relative to the aircraft structure. A member 16 mounted for fore and aft movement relative to the aircraft structure has a surface 17 which constitutes a secondary intake ramp, the passage 19 between the ramp 10 and the surface 18 of the member 16 being a boundary layer air passage. Associated with the parts 17, 14, 12 and 11 is a member 20 of generally triangular section which has a surface 24 which co-operates with the surfaces 17 and 14 to define the intake throat 29 and the combustion chamber 15, a surface 26 which co-operates with the surface 12 to define the nozzle throat 13, and a surface 25 which co-operates with the ramp 11 to define the expansion nozzle. The member 20 is formed integrally with two side walls 21, 22 to as to provide a channel-section structure which is mounted for pivotal movement at a point 31 forward of the intake throat 29. The side walls 21, 22 are received in a recess 23 in the aircraft structure and the structure is movable by means of jacks 32. The movable structure is shown in full lines in the position it occupies for flight at Mach 7 and in chain-dotted lines in the position for flight at Mach 3. The positions of the shock waves which occur at flight speeds of Mach 4 and Mach 7 are shown in Fig. 4 (not shown). In the embodiment shown in Fig. 5, the member 20 is formed in two parts, a forward part 49 and a rearward part 51 which are connected together by a hinge 60 in the region of the expansion nozzle throat 13a, so that the rearward part may be rotated about the hinge 60 relative to the forward part by means of jacks 53.
Patent GB-933156-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J41/00
Filed: 1960-07-21
Abstract: The invention comprises steroids of the general formula <FORM:0933156/IV(a)/1> wherein R1 and R2 represent alkyl radicals containing 1 to 4 carbon atoms, R3 represents hydrogen or a hydroxy or keto radical, R4 represents a hydroxy, acetoxy or keto radical, R5 represents fluorine or hydrogen or a methyl or hydroxy radical, and R6 represents hydrogen or a methyl or hydroxy radical, and alkyl quaternary salts of the said steroids, and the preparation thereof by heating the required conanine quaternary hydroxide (see Specification 933,155) and, when required, converting the resulting steroid of the above formula into a quaternary salt by reaction with the required alkyl halide. The quaternary halide thus formed may be converted to a quaternary hydroxide by means of an anion exchange resin. Specification 933,157 also is referred to.
Patent GB-625037-A (GB)
Title: Improvements in or relating to cellular panelling or like cellular constructional work
IPC: E04C2/36
Filed: 1946-06-24
Abstract: 625,037. Compound sheet materials. BAKER, W. F., and OLIVER, A. June 24, 1946, No. 18874. [Class 140] [Also in Groups XXIII and XXXIII] In cellular panel or like work wherein sheets of plywood or other material are spaced apart by web elements which outline the cellular construction and are joined at opposite edges to the sheets, the web elements are set up in a jig so that each has a sinuous form with a plurality of crests extending in each direction, oppositely extending crests of adjacent elements being close to, or contacting each other, and these crests being bonded together by glue &c. without applying lateral pressure to the elements. The cells may be of hexagonal or other form. In the Figure, the jig comprises a metal or plywood base 1 to which are secured parallel bars of wood &c. which are slotted as at 3 to form lines of projections 4, about which the web elements are threaded; marginal portions of the base may receive fillets 5 forming a frame for the cellular structure and the fillets may be notched to receive the ends of the web elements. Bonding material is then applied to the edges of the strips and the sheets of plywood &c. applied thereto. The base 1 may form a part of the composite material, the fillets 5 being bonded thereto. The construction is applicable to surface construction on aircraft, walls, doors, ceilings, floors, &c. Specifications 556,620 and 625,036, [both in Group XXIII], are referred to.