baber/WOPTO huggingface dataset:
Patent GB-1378550-A (GB)
Title: Treatment of razor blades
IPC: B26B21/56
Filed: 1972-07-06
Abstract: 1378550 Treating razor blade edges; removing material by ions GILLETTE CO 6 July 1972 [9 July 1971 (3)] 31684/72 Headings B3A and B3V [Also in Division C7] A process for treating a razor blade 20 coolprises ion bombarding the implement in a vacuum chamber to modify the tip geometry of its cutting edge and concurrently energizing a source of strengthening material in the chamber to transfer the material from the source and deposit it on the implement. The cutting edges of the razor blades are initially formed by grinding, honing, stropping, chemical etching, electrolytic sharpening, or forming in a die. The razor blades 20 are placed in a stack on a support 18 in a chamber 10. A port 16 connects the chamber to a vacuum system and the support and a target 24 are connected to energizing apparatuses 26, 28. The target can either be a horizontally-disposed disc or a cooled rod, the blades being disposed parallel to the disc and placed around the rod respectively. The chamber is evacuated and an R.F. potential applied to the target which may be, e.g. pure chromium or Cr-Pt alloy, and a D.C. power source is connected to the support disc 18, e.g. aluminium. The blade edges are shaped by ion bombardment, e.g. glow discharge in low argon pressure, and concurrently the target material is deposited on the blades. The resulting blades have a tip (34), Fig. 3 (not shown), with a tapering flank layer (36). The target can be shielded during the prior grinding of the blade edges and also cleaned by ion bombardment. The shield is then removed and the simultaneous shaping and depositing operation begun. A coating of P.T.F.E. telomer is then applied to the blade edges. A succession of depositing and removing cycles can be made. Alternatively, sharpened razor blades (120), Fig. 7 (not shown), can be stacked on a movable support 118 in a chamber (110) which is evacuated and the blade edges ion-bombarded to reduce the tip radius (44), Fig. 6 (not shown). An R.F. potential is then applied to a dielectric target (126), e.g. a sintered compact disc of Al 2 O 3 , and sputtering commences Then the support (118) is aligned with a target (128) of electrically conducting material, e.g. Cr 3 Pt, and sputtering commences. Ion bombardment is then used to remove the electrically conducting layer, material from the tip being removed faster than from the sides. A coating of P.T.F.E. telomer is then applied to the blades.
Patent GB-1322019-A (GB)
Title: Derivatives of tetracyclines
IPC: C07C233/00
Filed: 1970-07-01
Abstract: 1322019 Tetracycline-sulphonamide drug antibiotics M G ROUCHY 1 July 1970 [1 July 1969] 31844/70 Heading C2A The invention comprises an antibiotic of the tetracycline type linked to a sulphonamide drug through the 2-carboxamido function of the tetracycline nucleus by means of a group derived from an aldehyde. The antibiotic has the formula wherein R 0  is the hydronaphthalene skeleton of an antibiotic of the tetracycline type; R 1  is a solubilizing group of formula A-SO 3 -B, A-COOB, A-SO 3 H or A-COOH wherein A is a hydrocarbon radical, B is an alkali metal, alkaline earth metal or organic base and the solubilizing group is attached to the tetracycline nucleus via replaceable OH groups or the N in the 4-position of the nucleus; n is 0, 1, 2, 3 or 4, depending upon the number of replaceable OH groups on the tetracycline nucleus R 0 ; R 2  is the residue of an aldehyde (including H); R 3  is the residue of a sulphonamide drug following removal of an amino or alkyl amino group, the sulphonamide residue optionally containing a solubilizing group attached to the N atom; R 4  is H or C 1 -C 6  alkyl. R 1  may be a propane sulphonate, an ortho benzyl sulphonate or an ethane carboxylate. The tetracyclines are produced by reacting a tetracycline antibiotic with a sulphonamide and the aldehyde in the presence of a solvent. Alternatively, a tetracycline already methylene-substituted at the 2- carboxamide position by a radical which can be displaced by sulphonamide may be used as starting material. Examples relate to sodium tetracycline methylene sulphamethoxy-pyridazine-N-1-propane sulphonate, sodium chlorotetracycline methylene sulphamethoxazole-N- ethane carboxylate, sodium tetracycline methylene - 2 - sulphanilamido - 5 - methoxy pyrimidine-N-propane sulphonate, sodium tetracycline methylene sulphamethoxypyridazine, tetracycline methylene - 1 - carboxylic acid sulphadimethoxime and the corresponding chlorotetracycline, tetracycline sulphamethoxypyridazine-N-propane sulphonate and others. Salts may be formed with physiologically acceptable acids or bases, e.g. penicillins, cephalosporins, neomycin, streptomycin, dihydrostreptomycin, kanamycin and erythromycin. Pharmaceutical compositions comprise as an essential ingredient thereof at least one tetracycline type antibiotic linked with a sulphonamide drug as defined above.
Patent GB-999681-A (GB)
Title: Radio frequency component
Inventor: LEACH HAROLD HUNTER
IPC: H01P5/02
Filed: 1963-08-13
Abstract: 999,681. Two-part couplings. A. ALFORD. Aug. 13, 1963, No. 31947/63. Heading H2E. A coupling for joining two coaxial cables of different diameters, comprising a first section 11 having an inner and an outer conductor, 21 and 13, and a second section 12 having an inner and an outer conductor 24 and 15, of respectively different diameters from those of the first section, there being two bevelled portions 31, 26, as shown. The bevelled portions are axially offset from one another but may still partly overlap one another, and the central conductor assembly may be supported by a " Teflon " (Registered Trade Mark) spacer 23. The coupling may serve to maintain a constant Voltage Standing Wave Ratio when joining cables of the same characteristic impedance, when for example a " slotted line " for making precise H.F. measurements is joined via a smaller diameter cable to signal-generating apparatus.
Patent GB-188968-A (GB)
Title: Improvements in or relating to winches
IPC: B66D1/08
Filed: 1921-11-29
Abstract: 188,968. Elliott, A., and Elliott & Garrood, Ltd. Nov. 29,1921. Winches.-In power-driven winches of the kind wherein the rope drum or drums are exposed ready for use, but the power unit is protected by a casing, the power unit is a two-cylinder horizontal steam engine 12, having cylinders situated close together side by side, which rests on a base 10 between standards 13, 14 forming the bearings for the rope drum spindle 11. A single fly-wheel 20 is mounted on the crank-shaft between the cranks. The space between the standards is enclosed by casing members 17 having one or more doors 18. The shaft 21 for a rope-coiling mechanism, which may be of the kind described in Specification 189,348, [Class 109, Ropes &c.], is driven from the spindle 11 bv a chain 22 which can be enclosed within a cover 23.
Patent GB-882287-A (GB)
Title: Improvements in or relating to microwave scanning antennae
Inventor: BUTLER JESSE L
IPC: H01Q3/18
Filed: 1958-07-15
Abstract: 882,287. Aerials. RAYTHEON CO. Oct. 7, 1958, No. 31992/58. Class 40(7). A microwave aerial comprises a waveguide 12 protruding from fixed parabolic reflector 11 to illuminate n parasitic elements 17 symmetrically radially disposed in a plane normal to the axis of revolution of mounting 10 driven by motor 21 so that for each revolution of the mounting the directive pattern rotates n times. Mounting 10 comprises a reflector disc 13, a dielectric spacer 16, three radiating poles 17 and a dielectric disc 18, and is mounted on shaft 20 of motor 22 by set screw 15; the motor frame is fixed to reflector 11 by struts 25. Generator 23 provides an A.C. reference voltage for determining the angular position of mounting 10.
Patent GB-1427185-A (GB)
Title: Pressure regulators
IPC: B60T15/50
Filed: 1973-07-05
Abstract: 1427185 Fluid-pressure servomotor systems ROBERT BOSCH GmbH 5 July 1973 [6 July 1972] 32077/73 Heading G3P A pressure regulator for a compressed air braking system of a vehicle, connectible to normally allow compressed air from a compressor to pass via port 4, filter 5', passages 6, 9, check-valve 10 and port 11 to a reservoir, includes an unloader valve 20, a tyre inflator port 7 and a pair of parallel mounting surfaces (22, 23), Fig. 2 (not shown), enabling the regulator to be mounted to the vehicle chassis or body in alternative orientations. The axis of the port 7, lies in a plane at least substantially parallel to the mounting surfaces and is inclined to axis 27 by angle α of between 0 and 90 degrees. The air pressure in the reservoir is communicated via passage 12 with a chamber 13 so that when the reservoir pressure reaches its maximum value, it causes piston 14 to raise a valve 15 and thereby communicate the pressure with a piston 18 which then opens the valve 20 for unloading the compressor discharge to atmosphere.
Patent GB-886594-A (GB)
Title: Improvements in coating metal surfaces
Inventor: FREEMAN DENNIS BRIAN
IPC: C23C22/46
Filed: 1959-09-21
Abstract: A solution of sulphur dioxide in aqueous ammonia is used as accelerator in an oxalic acid coating solution.  The accelerator solution may be used both in the initial preparation of the coating solution as well as in the replenishment thereof, and preferably contains, by weight, at least 30% sulphur dioxide and a ratio of SO2/NH3 between 3,5 and 4,5.  The concentration of sulphur dioxide in the coating solution should be maintained between 0,3 and 6 g/l.  The Examples relate to the coating of 18/8 Cr-Ni stainless steel: in one case the solution also contains ammonium bisulphate.  For the treatment of steels which are more difficult to coat, the solution may also contain a halogen, ferricyanide or thiocyanate.  Coatings may be formed on other metals, e.g. copper, nickel, chromium and nickel-chromium alloys.
Patent GB-269616-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F23D14/46
Filed: 1925-12-21
Abstract: 269,616. Stephenson, A., Woodhead, H. E., and Allen-Liversidge, Ltd. Dec. 21, 1925. Blowpipe burners; burners, mounting. - In devices for controlling the passage of gases to blowpipe and like apparatus a wedge member operating a pair of opposed valves mounted upon a common base, is carried by a pivoted operating element mounted to swing between the valve mechanisms, preferably with play to allow for slight lateral movement to equalize the pressure on the valve operating members. In the arrangement shown in Fig. 1, two valve casings 1, 2 secured to a plate 3 adapted to be screwed to a bench, are each provided with inlet and outlet passages 5, 6 with nipples 7, 8 for tubular connections and communicating by means of a valve chamber 11 which contains a diaphragm 10 adapted to be pressed against the orifice of the passage 5 in opposition to a spring 12, by a wedge member 16 acting through a ball 13. The wedge is carried by a lever 15 loosely pivoted in a bracket on the base plate 3 and formed with a forked end 17 or the like to carry a blowpipe when not in use, the weight of the blowpipe causing the wedge to close the valves to cut off the gas supply. The lever is raised by a spring, allowing the valves to open, when the tool is removed. A small burner 18 may be connected to one of the gas supply passages 5, the flame being protected by a shield 20 and regulated by a screw valve 21 provided with a screw cap 22. The wedge faces may be arranged to operate the valves one in advance of the other. They may also terminate in flat parallel surfaces so that the gas pressure acting on the diaphragms is unable to effect movement thereof. In the arrangement shown in Fig. 3, each valve chamber 27 contains a flexible diaphragm 26 carrying a central spindle 28 formed with valve closure members 29, 30 adapted to engage seatings at opposite ends of a passage 34 of slightly larger diameter than the spindle. When the wedge 41 is out of action, a spring 35 within the chamber 27 presses the diaphragm so as to open the valve 29. the valve 30 acting as a throttle for high pressure gas admitted through the passage 33. A heavier spring 36 acting .on the opposite side of the diaphragm is located in an extension 37 of the chamber 27 and bears against a plunger 38 with a stem 39 carrying an adjustable extension 31 adapted to engage the wedge 41, so that by the action of the wedge the pressure of the spring 35 may be overcome and the valve member 29 pressed on to its seating to cut off the gas supply. A cursor 46 operated from the diaphragm may indicate pressures on an external scale 45. The inlet and outlet passages 33, 34 may terminate in nipples as in the previous example. As shown in Fig. 4, the blowpipe may be hinged at 49 to a bracket 47 and be brought into action by a pedal or the like 55, the valve housing being secured beneath a baseplate 46<a> and the wedge operating-member 53 being carried by a bent-arm 52. An adjustable weight 50 raises the blowpipe when the pedal 55 is released.
Patent GB-881164-A (GB)
Title: Improvements in or relating to machines for grinding gears and similar profiles
Inventor: HOPKINS JACK ROWLAND
IPC: B23F23/08
Filed: 1956-10-23
Abstract: 881,164. Bearings. SYKES Ltd. W. E. Oct. 22, 1957 [Oct. 23, 1956], No. 32333/56. Class 12 (1). [Also in Groups XXII and XXIII] A machine for wet or dry grinding of gearcutting cutters &c. comprises a grinding-wheel head assembly reciprocating with respect to a workpiece and a common mandrel mounted between dead centres and carrying the work- 'piece and a dividing plate. The grinding wheel 1 carries balance-weights 20 and is clamped by a nut 21 on a spindle 18 rotating in wick-lubricated micro-clearance bearings 22, the lubricant sumps 28 having inspection windows 28a. The wheel and its bearings can be removed as a unit by releasing screws 29a and cap 29.
Patent GB-347657-A (GB)
Title: Method and apparatus for producing printing plates
IPC: B41C3/06
Filed: 1929-10-24
Abstract: 347,657. Printing surfaces. HERBERT PHOTOS, Inc., 480, Lexington Avenue, New York, U.S.A. Oct. 24, 1929, No. 32343. Convention date, April 19. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] Consists in a method of producing flexible printing-plates bearing pictures, advertisements, &c., in half-tone and descriptive matter or headings in clear lines. From a photograph of the picture &c. is prepared a copper or zinc plate 11, Figs. 1 and 5, bearing a copy of the picture in half-tone. Outside the area of the picture and on a smooth background is formed the clear line headings or descriptive type matter 11a and the plate is also preferably formed with ridges and depressions 11c, 11b, Fig. 5. A number of lead moulds 12, Fig. 5, are obtained from the plate 11 by pressure, the ridges and depressions 11c, 11b preventing side flow of the lead. The moulds 12 are then placed in one or more recesses 14b, Fig. 4, in a frame comprising a base 14 and a frame or bars 15 which overlie the edges of the moulds. A sheet 16 of celluloid, fiberloid (produced from paper, camphor, and alcohol), or other suitable material to form the printing plate, is then pressed upon the mould by means of a felt or other resilient member 17 in a hydraulic or other press. The member 17 is smaller than the opening in the frame 15 so that side flanges 16a are formed on the plate to facilitate attachment to the mounting block.
Patent GB-729027-A (GB)
Title: Improvements relating to letter filing mechanisms
IPC: G05G7/00
Filed: 1953-11-23
Abstract: 729,027. Filing papers. SOENNECKEN, A., [trading as SOENNECKEN, F.]. Nov. 23, 1953 [May 20, 1953; July 10, 1953], No. 32423/53. Class 146(1). A letter file comprising bowed members rockable under the influence of a lever-operated pin acting against a spring for closing the file has the pin freely mounted in two guide slots angularly disposed in relation to one another, one slot being in the hub part of the lever and the other in a bracket plate pivotally supporting the lever. The file comprises either two pairs of bowed members 8, 9 and 81 91 or the normal lever arch file with one pair of bowed members 8, 9 co-operating with fixed posts 2, 3, rivetted at 4, 5 to the base plate 1. The bowed members 8, 9 and 8<SP>1</SP> 9<SP>1</SP> are integrally formed with an axle having a cranked part 12, 12<SP>1</SP> and rectilinear end parts 10, 11 which.are secured to the base plate 1 by hinge eyes 6, 7 bent out from the plate and a leaf spring 13, 13<SP>1</SP> fixed to the base plate 1 bears on the under side of the cranked parts 12 12<SP>1</SP> to move the bowed members to the open position. The lever 16 has a hub 15 provided with a slot 17 extending in the open position (Fig. 3) more or less parallel to the cranked part 12, and the lever is pivotally mounted at 16a to a bracket 17 bent out of the base plate 1, the bracket 17 having a slot 19 inclined at an angle to the base plate 1 and terminating in a horizontal portion 20. The operating pin 14 extends through the two slots 18, 19 and has an antifriction roller 15a bearing on the cranked part 12, the roller being freely axially movable. A similar roller 15a<SP>1</SP> on the opposite side of the bracket 17 bears on the cranked part 12<SP>1</SP> for the construction with two pairs of bowed members. When the lever 16 is moved from the open position shown in Fig. 3, the pin 14 is moved down slot 19 by the action of the slot 18 and finally is locked in position in the slot 20. The lever 16 is cranked and knurled to provide a handle 21 and two handles close together may be provided for assisting the opening movement from the slot 20 or, as shown in Fig. 5, the lever may be in the form of a crescent with arms 22, 23 having handles or keys 25, 24, the arms being strengthened at 27, 26. The keys 24, 25 may be differently coloured or marked to distinguish them.
Patent GB-433916-A (GB)
Title: Improvements in draw sheet or tympan sheet for rotary printing presses
IPC: B41N10/04
Filed: 1934-11-10
Abstract: 433,916. Printing-machines. DEHN, F. B., 103, Kingsway, London.-(Vulcan Proofing Co. ; 1st Avenue, Brooklyn, New York, U.S.A.) Nov. 10, 1934, No. 32470. Drawings to Specification. [Class 100 (ii)] Impression surfaces.-A tympan for covering the impression blanket of a printing-machine consists of fabric layers united by a resilient layer of natural or artificial rubber or of a synthetic resin, with suitable fillers if desired, one of the fabric layers having an oil repellent coating composed of a reaction product obtained from the interaction of a halogen substituted olefine and an alkali polysulphide, e.g. ethylene dichloride and sodium polysulphide. A suitable composition for the uniting layer consists of rubber, zinc oxide, antimony sulphide, sulphur, aldol-alpha-naphthylamine, lime, diphenyl guanidine, and stearic acid, in stated proportions. Specification 387,811 is referred to.
Patent GB-1452880-A (GB)
Title: Process and apparatus for the electrolytic manufacture of chlorine and alkali metal hydroxide
IPC: C25B1/46
Filed: 1975-08-04
Abstract: 1452880 Electrolytic chlor-alkali production HOECHST AG 4 Aug 1975 [6 Aug 1974]  32476/75 Heading C7B A chlor-alkali production process comprises passing alkali metal chloride to parallel-connected anode compartments of a plurality of cells while passing water into the cathode compartment of a first cell and then passing the catholyte produced in series through the cathode compartments of the remaining cells, the compartments of each cell being separated by an ion-exchange membrane. The arrangement of cells is claimed per se.
Patent GB-1134037-A (GB)
Title: Improvements in and relating to fiberboard
IPC: D21J1/00
Filed: 1966-07-20
Abstract: 1,134,037. Non-abrasive coatings. OWENSILLINOIS, Inc. 20 July, 1966 [23 July, 1965], No. 32490/66. Heading B2E. [Also in Division D2] Non-abrasive fibrous - packaging material comprises fibrous packaging material having an exterior unfinished surface and a coating on at least part of said surface, said coating comprising a composition containing a mixture of fatty acid alkanolamides and alkanolamines, said coating being present on said surface in amount sufficient to impart non- abrasive qualities to said surface. The alkanolamide component of a mixture comprises from 60% to 90% by weight. The mixtures may be prepared by reaction of an alkanolamine with a fatty acid. Numerous suitable acids are specified. The mixtures may be prepared by reacting from. 25-75 weight percent of an alkanolamine with 75-25 weight percent of a fatty acid at from a 125‹-175‹C. at atmospheric pressure for from 2-4 hours. The viscosity of the coating compositions which may be acqueous dispersions, may be improved (lowered) by the addition of 0.5-3% by weight of improvers such as formic acid, lactic acid, citric acid and a salt of tetranaethylpara-aminotriphenylcarbinol. Small percentages of other components such as anti-foaming agents, dyes, pigments, anti-static agents and anti-oxidants may be present. The coating may be applied by spraying or brushing or by the rotogravure system or flexographic system. The coating may be applied at 0.5-51bs. per 1000 sq. ft.
Patent GB-302044-A (GB)
Title: Improvements in couplings or connectors for pipes for conveying steam, oil, water, grease or other fluid
IPC: F16L27/08
Filed: 1927-12-02
Abstract: 302,044. Rudolph, G. O. L. Dec. 2, 1927. Swivelling - joints; stuffing-box joints. - A swivelling member f, Fig. 1, is mounted in a coupling member a by a split gland nut g which is connected to the member f by a series of balls h, constituting a ball bearing, and is adapted to bear against an asbestos &c. packing ring i embedded in the threads or a recess of the coupling member and in a recess in the said swivelling member. The gland nut is locked in position by providing it with a spring pawl k,. Fig. 2, adapted to engage one of a number of ratchet teeth l on the coupling member; alternating a locking ring m, Fig. 4, having internal serrations engaging serrations n, n<1> on the coupling member and gland nut respectively is used. Flexible tubing b may be connected to the other end of the coupling a by a nut c which encloses a soft packing ring d, preferably in conjunction with a metal ring e, as shown.
Patent GB-784214-A (GB)
Title: Gravity loaded or unloaded containers and conveyances
IPC: B65D88/28
Filed: 1953-11-24
Abstract: Coatings of thermohardening or self-hardening synthetic resins are applied at least to the "sliding surfaces" of a container or conveyance which comprises surfaces over which solid particulate material is required to slide under gravity when the material is charged into or discharged from the container for the purpose of reducing adhesion of the solid particulate material, e.g. when moist, and of facilitating sliding of the material over the surface.  The containers and conveyances, which may be of metal or concrete, may be tipping wagons, coal and cement shoots and bunkers, outlets of bunkers, coal distribution boxes, and bucket cars for conveying coal sludge and slack.  The coating, which may be applied in several layers, may comprise a self-hardening synthetic resin made from a number of components mixed immediately before use and hardening after application as a result of interaction of the mixed components, or a thermosetting resin or a mixture of such resins.  A specified composition comprises a phthalate-plasticized phenolic resin, a polyvinyl resin, e.g. the chloride, ether, acetate, alcohol, or acetal, a silicone resin, chrome colours, and silicon carbide as a fine powder.  The surfaces to be coated may be preliminarily sandblasted and, if of metal, may be pre-coated with one or more identical or different layers of nonferrous metal such as zinc, lead, or aluminium which may be applied by spraying.  The coating of thermosetting resin is hardened by heating.ALSO:A coating composition comprises a phthalateplasticized phenolic resin, polyvinyl chloride, ether, acetate, alcohol or acetal, a silicone resin, chrome colours, and finely powdered silicon carbide.