baber/WOPTO huggingface dataset:
Patent GB-883777-A (GB)
Title: A multiple stage flash evaporator
Inventor: EWING REID
IPC: B01D3/06
Filed: 1959-11-17
Abstract: <PICT:0883777/III/1> <PICT:0883777/III/2> A multiple-stage evaporator for sea-water comprises a casing divided by partitions into a series of chambers, a plurality of condenser tubes passing linearly through each of the chambers, means for passing heated sea-water through the chambers in succession, means for maintaining the chambers at successively lower pressures in the direction of flow of the sea-water, and means for passing cool sea-water through the condenser tubes in counterflow to the heated sea-water.  A number of such casings may be arranged in series, and Fig. 1 shows an arrangement comprising six casings 10a-10f each divided by partitions into three chambers.  As shown in transverse section in Fig. 3 and in longitudinal section in Fig. 4 each casing comprises chambers 45, 46, 47 through which a bundle 48 of condenser tubes passes linearly. Each chamber has a plate 49 spaced from the bottoms thereof, the plate having orifices 50 and a terminal weir 52. Seawater supplied by pipe 25 flows into the chamber 45 beneath the plate 49, rises through the orifices 50 and flows into the chamber 46 through an opening 53 in the partition between the chambers.  The vapour from the water passes over a baffle 58 and through a de-mister 59 into contact with the condenser tubes 48, through which flows cool sea-water supplied by pipe 17 and withdrawn through pipe 16.  Condensate collects in the bottom part 57 of the chamber and is discharged through pipe 60. Reverting to Fig. 1, sea-water at about 175 DEG  F. flows from the heater 11 through pipe 21 into the casing 10a and thence through the other casings, the unevaporated residue being discharged at 28.  Cool feed-water enters the condenser tubes of casing 10f by the pipe 14 and flows through the tubes of the casings in succession before it is passed by pipe 20 to the heater 11.  A vacuum pump 30 maintains successively lower pressures in the chambers of the casings in the direction of flow of the sea-water to be evaporated. Condensate is withdrawn by a pump 29.  A modified apparatus is described (Figs. 7-9, not shown) in which two casings each divided into 12 chambers are provided.
Patent GB-820834-A (GB)
Title: Improvements relating to water closets
IPC: E03D1/26
Filed: 1956-03-17
Abstract: 820,834. Flushing cisterns. JOHNS & CO. Ltd., E., and STOTT, C. K. March 15, 1957 [March 17, 1956 ; March 13, 1957], Nos. 38943/58 and 38944/58. Divided out of 820,833. Class 26. In a flushing cistern 1 for a water closet to be close coupled to and supported from a platform thereof, the base 3 has a recess 13 extending into the cistern I to form a pocket 14, having in its inner end an opening 16 to receive the water discharge pipe and an extension thereof which, when the cistern is close-coupled, are wholly isolated from any water in the cistern 1. The recess 13 may consist of a squat tubular tower, as shown in Fig. 1, or be a trapezoidal pocket extending laterally of the cistern 1 and accessible from the rear thereof, which may extend laterally for any distance up to the entire width of the cistern 1. The cistern and the pocket are preferably made integral in pottery and the pocket may be other than trapezoidal, e.g. rectangular.
Patent GB-845436-A (GB)
Title: Improvements in or relating to apparatus for bending irons used in the reinforcing of concrete or the like
IPC: B21D11/12
Filed: 1956-12-21
Abstract: 845,436. Angular bending. GHIRING- HELLI, E. Dec. 21, 1956 [Dec. 21, 1955], No. 39097/56. Class 83 (4). Apparatus for bending concrete reinforcement rods comprises a plurality of bending-units each including crank means carrying a pin which bends the rod around a second pin coaxial with the axis of rotation of the crank, upon rotation of the crank. The apparatus includes bending units C, C1, for bending round the ends of the rods, adjustable on wheels on rails 14 on a base A and double bending units B, B1, for forming intermediate bends in the rods, also on wheels on the base A and adjustably clamped on rods 20 extending from the units C, C1, respectively. The double unit B comprises a casing 10 housing a vertical sleeve 32 formed with a crank at its upper end and rocked by piston and cylinder means 24 through levers 28, 30. A rod 40 slides vertically in the sleeve 32 by piston- and cylinder means 42 and a pin 38 is carried by the crank 36 for movement around the rod 40. A casing 60, adjustable along horizontal guides 62 on the casing 10 by screw means 66, houses a crank 44, rocked by piston-and-cylinder means 54 against the action of a return coil-spring 55, and carrying a pin 48 coaxial with its axis of rotation and a second pin 43 for movement around the pin 48. A return coil-spring may be provided for the sleeve 32. The unit C comprises a carriage 76 on which a housing 82 is vertically slidable by piston-andcylinder means 86. The housing 82 supports on a shaft 106 a plate 114 carrying a pin 116 coaxial with the shaft and a pin 118 for movement around the pin 116. The shaft 106 has keyed thereto a drum 102 to which are secured ends of cables 98 running over a roller 96 and secured at their other ends at 100 to the housing 82. A piston-and-cylinder means 85 transversely moves the roller 96 to cause the roller 102 and thus the shaft 106 to rotate in one direction against the action of a return coilspring 110. In operation, a plurality of rods F to be bent is clamped by jaws 70, 72 on the casings 60 with the ends of the rods lying between the pins 43 and 48. The crank 44 is then turned to bend the rods to the position F1, the housing 82 and also the rod 40 being in their lowered position. The rod 40 is then raised by the piston 42 and with the rods F between the rod 40 and pin 38 the crank 36 is turned to bend the rods to the position F2. The housing 82 of the unit C is then raised by the piston 86 so that the ends of the rods F are engaged by an open clamp 120, a fork 122, and between the pins 116 and 118. The clamp 120 is then closed and the plate 114 is turned by the piston 85 so that the ends of the rods F are bent into hook-shape. Instead of piston-and-cylinder means, cam, rack or screw means may be used. The pins 38, 43 and 118 may be adjustable to or from the axes of their respective cranks.
Patent GB-1270848-A (GB)
Title: Coated fabric
Inventor: NORCROSS KENNETH
IPC: D06N3/00
Filed: 1969-08-05
Abstract: 1,270,848. Coated products. NAIRN-WILLIAMSON Ltd. 30 July, 1970 [5 Aug., 1969], No. 39213/69. Heading B2E. [Also in Division B5] A leather substitute is made by impregnating a woven fabric raised on at least one surface with a polymeric material and coating the raised surface, or one or both of the raised surfaces, with the same or a different polymeric material. Coating is effected by direct spreading or by a transfer process using a release paper and the coating composition comprises a vinyl chloride polymer or copolymer, or polyurethane precursors. The fabric is of cotton fibres or such fibres blended with viscose rayon, polyester or polyamide and the impregnant is a PVC, polyurethane, acrylic polymer or nitrile rubber composition. The impregnated fabric may be heated, flattened between rollers and buffed on both sides prior to coating. After gelling or curing, the coated fabric may be embossed or lacquered with a polyurethane, polyamide, polyacrylate or cellulose acetate butyrate lacquer.
Patent GB-895951-A (GB)
Title: Improvements in or relating to guards for portable heating appliances
IPC: F24C15/36
Filed: 1959-11-19
Abstract: 895,951. Fireguards. WORTHINGTON, W. J., and NOLAN, C. P. Feb. 20, 1961 [Nov. 19, 1959], No. 39236/59. Class 126. A guard for portable heating appliances comprises a base upon which the appliance stands and wire mesh panels which project upwardly from the base in front of and on either side of the appliance. The side panels are formed on frames 5 and 6 whose lower portions 10 are bent to pivot freely in the knuckle joints 4 fixed to the base 1. The front edges of the side panels are provided with sleeves 11 into which the bent ends of a bar 12 fit to retain the side panels in position. The front panel is formed on a frame 7 provided with clips 14 which engage the bar 12 and extensions 13 which rest on the forward pair of knuckle joints. A claw 15 fixed to the base engages a horizontal bar forming part of the front panel frame to further secure the latter in position. When the front panel is removed the two side panels may be folded down on to the base. A deflector plate (not shown) may be fitted to the upper end of the front panel to forwardly direct rising currents of hot air.
Patent GB-820814-A (GB)
Title: Apparatus for treating living tissue
IPC: A61B17/22
Filed: 1956-12-24
Abstract: 820,814. Therapeutic radiation apparatus. UNIVERSITY OF ILLINOIS FOUNDATION. Dec. 24, 1956 [Dec. 22, 1955; July 20, 1956], No. 39241/56. Class 81 (2). A supersonic treatment apparatus comprises a number of generating units, each having an oscillator and focusing means, with means for adjusting the unit axially and angularly. A piezo-electric crystal 22 is backed by a metal block 30 to which electrical power is conducted through an electrode 56 and its output is focused by a polystyrene lens 40. The assembly is mounted in a sleeve 62, so as to be longitudinally adjustable, by a nut 76, relative to its mounting 20 and it is displaceable angularly by screws 92, while being supported by a spring 90. Preferably, four such assemblies are mounted on a common support and are directed towards a desired common point. With such an arrangement the individual generators are adjusted for correct phase relationship by longitudinal adjustment by means of the nuts 76.
Patent GB-1406568-A (GB)
Title: Electrolytic surface preparation process for recoating of used coated metallic electrodes
IPC: C25D11/34
Filed: 1973-08-21
Abstract: 1406568 Recoating electrodes electrolytically JAPAN CARLIT CO Ltd 21 Aug 1973 [28 Aug 1972] 39604/73 Heading C7B The coating remaining on a used coated metallic electrode, comprising a metallic substrate, e.g. of Ti, Ta, Nb or Zr, coated with an oxide of one or more of Pt, Rh, Pd, Os, Ir, Pt, Fe, Co, Ni is removed to prepare for recoating by passing a current between the electrode as anode and a cathode e.g. of steel at 1 to 100A/dm<SP>2</SP> of anode CD in an aqueous electrolyte solution containing 5 to 70 wt per cent of one or more of a sulphate, nitrate perchlorate, chlorate or persulphate, e.g. of Na. K, Li or NH4, at 0 to 50 C. The solution may also contain 0.1 to 3 wt per cent H202 as oxidation accelerator. Thereafter the surface of the thus treated electrode may be rubbed with a cloth and/ or water rinsed, and dipped into an aqueous solution containing by weight 5% HF or 8 to 17% HCl. The electrodes may be for use in an alkali metal chloride bath.
Patent GB-1418569-A (GB)
Title: Inertia switch
IPC: H01H35/14
Filed: 1973-08-21
Abstract: 1418569 Inertia switches ALLIED CHEMICAL CORP 21 Aug 1973 [23 Aug 1972] 39608/73 Heading H1N An inertia switch comprises a chamber 70 formed by top 5 and side walls 2 and a base 4 having a hole 7 therein, a movable mass 3 contained within the chamber and larger in cross-sectional area than the hole 7 so as to be removably positioned in the hole under rest conditions, said chamber having inclined means 14 for returning the mass to the rest position in the hole, switch means underlying the hole and mounted on the base for engaging a portion of the mass 3 extending through the hole 7 when said mass is positioned in the hole, said switch means including a biased wire electrical contact 5a movable as a result of engagement with the mass 3 in a direction against its bias to implement operation of said switch means. As shown the wire 5a normally contacts a transverse wire 10 to complete a circuit, but when mass 3 is displaced by impact, for example, the wire 5a rises and the circuit is broken. The wire 5a is accommodated in a groove 6 provided diametrically across base 4. In a second embodiment (Fig. 4, not shown) the ball 3 is conductive and its engagement with wire 5a constitutes the switch contacts.
Patent GB-1315159-A (GB)
Title: Television receiver deflection circuit
IPC: H03K4/83
Filed: 1970-08-18
Abstract: 1315159 EHT supplies RCA CORPORATION 18 Aug 1970 [25 Aug 1969] 39678/70  Heading H2F [Also in Division H3] The semi-conductor switching device of a television deflection current and E.H.T. generator utilizes a triggering waveform having positive and negative portions applied to the control electrode of the switching device via a differentiating element and a series resonant circuit. The invention is described as applied to the type of circuit described in Specification 1,200,460 in which, during the second half of the trace, a thyristor 25 conducts to cause a linearly increasing current to flow through deflection coils 30 from a large capacitor 33. Towards the end of the trace a synchronizing pulse is applied to a commutating thyristor 38 which resonantly discharges capacitors 32 and 45 through inductor 34, switching off thyristor 25. After a portion of a cycle the current reverses switching off the commutating thyristor 39 but continuing until the end of the retrace, through diode 40. Meanwhile the current through the deflection coils has resonantly reversed and the trace restarted, the deflection current flowing through diode 29 until about the middle of the trace when the reversal of the deflection coil current renders the thyristor 25 conducting again. The rapid switch-off of the thyristor 25 and the large reverse retrace voltage across it demand a negative gate voltage towards the end of the trace and during the retrace. This is provided from the reverse voltage developed across secondary winding 71 when the commutating thyristor 39 is rendered conductive. This voltage is differentiated by 72, 75 and is effective, via a circuit 72, 73 series resonant at the trace repetition frequency, to mainain the negative gate voltage (waveform e75 Fig. 2 not shown) from a point towards the end of the trace until about the end of the first quarter of the next trace. Thereafter a forward voltage is produced as a result of resonant current flowing through inductor 46 into capacitors 32 and 45. Winding 71 may be replaced by a tip on winding 46. Protection is provided for an E.H.T. generating circuit 50 by a circuit 54, 55, 56 and for the deflection circuit by diode 58.
Patent GB-1261767-A (GB)
Title: Segmented fluorocarbon sulfonic acids and derivatives thereof
IPC: C11D1/00
Filed: 1969-08-08
Abstract: 1,261,767. Fluoroalkyl sulphonic acids. NATIONAL STARCH & CHEMICAL CORP. 8 Aug., 1969 [28 Aug., 1968], No. 39719/69. Heading G2C. [Also in Division D1] Segmented fluorocarbon sulphonic acids of formula Z-Y-SO 3 H, wherein Z is a C 3-20  perfluoroalkyl group and Y is an alkylene, alkenylene, cycloalkylene, bridged cycloalkylene, (cycloalkylalkyl)ene or (bridged cycloalkylalkyl)ene radical, and anhydrides, metal and ammonium salts, sulphonyl chlorides, bromides and iodides and unsubstituted and N-alkylsulphonamides thereof, are prepared by sulphonation of a compound of formula Z-Y-W, wherein W is a chlorine, bromine or iodine atom, followed if desired by conversion to a derivative specified above. The salts may be reconverted to the free acids. The products may be used as wetting agents, surface tension reducing agents, foaming agents, anti-foaming agents, dispersing agents, emulsifying agents, emulsion and dispersion stabilizers, detergents, corrosion inhibitors, fluxes, and oil-and-water-proofing agents.
Patent GB-837787-A (GB)
Title: Improvements in or relating to hand mirrors
IPC: A45D42/08
Filed: 1957-12-23
Abstract: 837,787. Mirror frames. SIMONS, J. March 26, 1958 [Dec. 23, 1957], No. 39858/57. Class 11 A frame, to receive a sheet of mirror glass 1, comprises a resiliently deformable plate-like body 2, spaced parallel lip formations 4, 5 on the body to define opposed recesses at the ends thereof to receive opposite end edges of the mirror glass, and one or more flanges 8 on side portions of the body 2 to engage over the side edges of the mirror glass. The body 2 defines a well which receives the mirror 1 and a backing sheet 6 which are inserted or removed by deforming the body. The body may consist of a single plastic moulding and may be provided with a hand hole 3.
Patent GB-1368503-A (GB)
Title: Strip feeding apparatus and method
IPC: G03B21/43
Filed: 1971-08-26
Abstract: 1368503 Feeding webs EASTMAN KODAK CO 26 Aug 1971 [27 Aug 1970] 40115/71 Heading B8R [Also in Division G2] Apparatus for stripping the leading end L of a web S from between flanges 4, 5 of reel 1 includes a device for increasing the spacing of the flanges at a particular location so that as the reel 1 is turned in a web unwinding direction the web S is caused to be stripped off near to that location. It is essential that at least one of the flanges 4, 5 is resilient so that their spacing can be increased and that the flange spacing normally restrains the outermost web convolution C2 from spilling off the reel 1. As shown in Fig. 1 the flange spacing is increased by rollers 17, 18 on sprung arm 21 and the flanges are so shaped that the convolution C2 is flexed. Thus when the flanges 4, 5 are opened out by the rollers 17, 18 the flexed web S will project tangentially as shown. In another embodiment the flanges restrain the web but do not flex it. The flange spacing is altered by an identical device to the parts 15-25 which is additionally fitted with a stripping finger attached to the free end of the arm 21 and which passes between the flanges 4, 5 to strip off the end L.
Patent GB-1511060-A (GB)
Title: Heat-and pressure-sensitive adhesive sheet and method of producing the same
IPC: C09J7/38
Filed: 1975-10-01
Abstract: 1511060 Pressure-sensitive adhesive sheets UNITIKA Ltd and UNITIKA SPARKLITE CO Ltd 1 Oct 1975 [16 Oct 1974] 40186/75 Heading B2E [Also in Division B5] An air-impermeable heat-and pressure-sensitive adhesive sheet having on its back surface a layer of heat - and pressure-sensitive adhesive is provided on the surface of the adhesive with one or more ridges or recesses at least one end of which intersects the end edge of the sheet. The cross-section of the ridges or recesses may be in the form of an arc, triangle or rectangle and the ridges or recesses may be in the form of parallel straight or wave lines or of a grid network. The ridges or recesses may be provided on the adhesive layer by providing ridges or recesses on a release sheet of paper or synthetic resin and applying the release sheet under heat and pressure to an air-impermeable sheet coated with the heat- and pressure-sensitive adhesive to bond them together, or by coating the ridged or recessed surface of the release sheet with the heat- and pressure-sensitive adhesive and applying it to the back of the air impermeable sheet for transfer. The release sheet is stripped off before use. The adhesive is preferably a rubber-type adhesive having a melting point of 70-80C.
Patent GB-1244089-A (GB)
Title: Sewer and drain cleaner composition
Inventor: SPRING SAMUEL
IPC: C11D7/60
Filed: 1969-08-12
Abstract: 1,244,089. Drain cleaner compositions. CONSOLIDATED FOODS CORP. 12 Aug., 1969, No. 40308/69. Heading C5D. A homogeneous generally spherical pelletized drain cleaner composition providing a controlled in situ reaction to liberate heat when, added to water to clear a drain line impedimentconsists of pellets comprising, by weight (A) 45-65% of an alkali metal hydroxide, (B) 5 to 10% aluminium in particulate form, and (C) 20-30% of an alkali metal nitrate, said pellets having a range size of # to 1 inch and preferably 1/8 to + inch. The pellets may contain 5 to 20% of a filler consisting of NaCi, Na 2 C0 3 , sodium silicate or mixtures thereof. A surfactant, e.g. alkyl aryl sulphonate, may also be present. The components (A), (B) and (C) are mixed to form a homogenous mixture, which is then pelleted in a conventional manner.
Patent GB-1127100-A (GB)
Title: Improvements in windscreen washing apparatus
IPC: B60S1/48
Filed: 1967-09-04
Abstract: 1,127,100. Windscreen cleaners. F. HANSELMANN. 4 Sept., 1967 [5 Sept., 1966], No. 40355/67. Heading A4F. [Also in Division F1] Windscreen washing apparatus comprises a washing fluid container 14 connected to spray nozzles 16 through a pneumatically operated pump 15 and a control valve 12 for the pump connected by conduits to a compressed air tank 11, a gas surge tank 13 and the pump 15. When an operating button 27 is manually depressed on the control valve 12 air is supplied to the gas surge tank 13 from the tank 11 and upon release of the button such air in the surge tank 13 is directed via a conduit 18 to the pump to move a piston assembly B thereof so as to urge cleaning fluid in a chamber III below the piston assembly to flow along the conduit 20 to the nozzles. When all the gas in the surge tank 13 has been exhausted the piston assembly is restored to its starting position by a spring C and simultaneously draws liquid from the container 14 through a valve device E into the chamber III ready for the next actuation of the operating button. The movement of the piston assembly of the pump may be arranged to actuate an electrical contact device which is arranged to effect operation of windscreen wipers. The piston assembly B comprises a pair of interconnected members B 1 , B 2  having seals b 1 , b 2  and being reciprocably mounted in a casing A. A plate D traversing the casing provides an abutment which limits movement of the piston assembly and against which abuts one end of the spring C. A normally closed valve 31 is provided in the member B 2  and is arranged to be opened by a rod 30 so as to vent a pump chamber I connected to the conduit 18 to atmosphere through a casing aperture 23 via an intermediate chamber II when the piston assembly is moved to a predetermined positioning in the casing A by gas under pressure in the conduit 18.
Patent GB-1223639-A (GB)
Title: Photoconductive titanium dioxide composition and method of preparation
IPC: G03G5/08
Filed: 1968-08-23
Abstract: 1,223,639. Coated TiO 2  crystals. NATIONAL LEAD CO. 23 Aug., 1968 [29 Aug., 1967], No. 40535/68. Heading C1N. [Also in Division H1] TiO 2  in the form of crystals 0À2-5Á. in size, the majority of which are straight-edged, containing less than 0À2% Na or K compounds and less than 0.1% phosphate (calculated as oxides) is coated with at least one of the oxides Al 2 O 3 , TiO 2 , PbO, SiO 2  and ZnO, the amount of Al 2 O 3  being 0À05-0À3% and of the other oxides being 0À1-1À5%. Preparation is by: (a) hydrolysing a Ti/Fe sulphate solution to form TiO 2  hydrate, (b) bleaching, e.g. with H 2 SO 4  and Al, (c) washing to remove Fe salts but to retain 5-15% H 2 SO 4 , (d) treating a slurry of the TiO 2  with NH 3 , NH 4 OH, or (NH 4 ) 2 CO, to give a pH of 6À5-11, (e) washing to remove salts and to give a sulphate content of at most 0À3% SO 3 , (f) adding Na or K hydroxide or carbonate in amount of 0À4-2À0% by wt. calc. as oxide, (g) optionally adding a boron compound, in amount of 0À02-0À15% by wt. calc. as B 2 O 3 , (h) calcining at 900-1025‹ C. with K, at 875-925‹ C. with Na to form anatase, or at 925-1025‹ C. with Na to form rutile, (i) grinding to 0À2-5Á, e.g. by dry-milling, or preferably, by wet ball-milling with an alkaline dispersant (whereby the Na or K oxide content is reduced to 0À00-00À2%), (j) heating with an acidic salt of A1, Ti, Pb, Si or Sn, or a silicate, followed by neutralization, e.g. with NaOH, to a pH of 6-9 to precipitate the oxide on the TiO 2 , and (k) washing, drying and milling. In examples, the treating agents used were AlCl 3 , ZnO 2 , Pb acetate, TiCl 4 , TiCl 4 +ZnCl 2 , Na silicate + HCl. The product is photoconductive and may be dyed with fluorescein and used in copy paper.