baber/WOPTO huggingface dataset:
Patent GB-876880-A (GB)
Title: Improvements in multi-turn potentiometers
Inventor: ALEN DEWITT T VAN
IPC: H01C10/24
Filed: 1957-11-11
Abstract: 876,880. Variable resistors. AMPHENOLBORG ELECTRONICS CORPORATION. Nov. 11, 1957, No. 35134/57. Class 37. A helical potentiometer has a contact slider mounted on a carrier movable coaxially with respect to the helix, and a guide for the carrier which is adjustable to allow variation of the angle between the guide and the axis of the helix whereby the angle of rotation of the contact slider can be varied. A plastic housing 26 has moulded into it a resistance helix 27 which comprises a length of copper wire wound into a helix, and having an insulating coating around which the resistance wire is helically wound. An end closure 38 is provided with a hollow tube 39 the outside of which has a screwthread 40, and a driving shaft 41 passes through the tube and has a dielectric ring 60 secured to it. The guide 59 is attached to the ring 60 by screws 66 adjustment of which causes the guide to pivot about its fulcrum 64. The longitudinal axis of the slot 58 may thus be canted with respect to the axis of the driving shaft. The contact carrier is in the form of a split nut engaging with the lead screw and is provided with radial arms 54 and 55 which project through the slot 58 and to one of which is attached the contact slider 70. Rotation of the drive shaft 41 drives ring 60 and guide 59, and the pressure of the sides of the slots against the arms 54 and 55 cause the contact carrier to rotate on the lead screw 40. If the slot in the guide is aligned with the axis of the drive shaft the carrier will rotate identically with the drive shaft. If the guide is not so aligned then the rotation of the carrier will be increased or decreased depending upon the direction of rotation. A non-linear law may be obtained by shaping the slot in the guide, Figs. 6, 7 (not shown). Adjustable end stops 79, 80 are provided to limit the travel of the slider as required. External connection to the contact 70 is made by a flexible lead 75 connected at one end to the contact, and at the other to a slip ring 74. Two contact brushes 71 make a connection to the external terminal 30. The end closure 38 is attached to the shell by means of a channel-shaped circumferential clip 43 which fits into circumferential grooves in the shell and end closure. The assembly may be mounted on a panel by means of screws through the end closure 38. Alternatively, a similar closure may be provided for mounting from the other end, or auxiliary plates may be attached for single hole fixing from either end, Figs. 15, 16, 17 (not shown). Specifications 876,881 and 876,882 are referred to.
Patent GB-294596-A (GB)
Title: Improvements in refrigerating plants, more particularly for freezing fish
IPC: A23B4/08
Filed: 1927-12-28
Abstract: 294,596. Dahl, O., and Kjorstad, E. A. H., July 27, 1927, [Convention date]. Freezing fish; cooling brine.-In freezing-apparatus for use on trawlers &c., the fish disposed in perforate containers 4 supported upon gratings 5 in a refrigerator 1 are frozen by brine circulated through the refrigerator and a brinecooler by a pump 10, the refrigerator being kept full of brine which has little or no contact with the outer air and having a vent pipe 20 in which a liquid head is maintained so that the refrigerator is under pressure greater than atmospheric. The refrigerator may be arranged in circuit with a chamber 35, Fig. 3, having compartments a, b for salt and brine respectively and a cooling- chamber 30 which is packed with ice. The refrigerator and the chambers each communicate through valved pipes with a brine tank 41 that may be supplied with sea-water by a pump 42. The pressures in the refrigerator and the chambers may be regulated independently of one another.
Patent GB-1172972-A (GB)
Title: Interlocking Building Elements
Inventor: MACALISTER ARCHIBALD
IPC: E04B2/70
Filed: 1965-08-17
Abstract: 1,172,972. Wood joints. A. F. BROWN. 10 Nov., 1966 [17 Aug., 1965], No. 35143/65. Heading A4H. [Also in Division E1] Walls which cross at right angles e.g. at the corner of a log cabin, are built from interlocking logs or blocks, each block having opposed rectangular notches 5, leaving a bridge 7, the bridges 7 of one wall interlocking with the notches 5 of the other. The bridge 7 has ridges 8 and grooves 9 for further interlocking. Each block also interlocks with the others in its own wall through one or more longitudinal tongues and grooves 2, 3. A notch 5 may be omitted from the lowermost and uppermost blocks in a wall to form foundation and roof-supporting blocks. In a modification, Figs. 4, 5 (not shown) the end faces of the notches 5, are bevelled. In a further modification, Fig. 6, the blocks have grooves to receive locking tongues 17.
Patent GB-448452-A (GB)
Title: Improvements in or relating to the manufacture of lower aliphatic anhydrides
IPC: C07C51/56
Filed: 1934-12-07
Abstract: Aliphatic anhydrides are produced by heating esters of the corresponding acids with unsaturated alcohols, such as vinyl or allyl esters.  Preferably the reaction is effected in the vapour phase at 250--650 DEG  C. and surface catalysts such as pumice or kieselguhr, alone or with dehydrating catalysts such as phosphoric acid, acid sulphates of alkali metals, pyrosulphates, acid phosphates, and pyrophosphates; tungstic acid, tungstates other than alkali metal tungstates, and alkali metal phosphates which catalyze the production of acetic anhydride from acetic acid may also be used.  The vapour of the ester may be passed through a molten bath containing the catalyst.  Alternatively, the ester may be heated in the liquid phase with a strong dehydrating catalyst such as phosphoric acid.  The ester may be diluted with inert gases or vapours, or, when liquid, with inert liquids, and water is preferably excluded.  The reaction yields an unsaturated ether as well as the anhydride; thus vinyl acetate yields acetic anhydride and vinyl ether.  In an example, vinyl acetate vapour is passed through a tube containing sodium bisulphate on pumice at 430--450 DEG  C. and the products are fractionally condensed.
Patent GB-1485886-A (GB)
Title: Method and apparatus for feeding a filler cord for sliding clasp fastener
IPC: A44B19/42
Filed: 1975-08-27
Abstract: 1485886 Feeding a filler cord for sliding clasp fasteners YOSHIDA KOGYO KK 27 Aug 1975 [5 Sept 1974] 35318/75 Heading E2S A method of feeding a filler cord 13 through a coiled sliding clasp fastener element 12 being formed by winding a filament 12a about an axis generally coincident with the direction the filler cord is fed through the coiled fastener element, comprises the steps of directing the filler cord 13 along a path of longitudinal movement extending from a source of filler-cord supply 15 to, and along said axis, the path having a loop portion, gripping and engaging the cord at the loop portion of the path to drive the cord longitudinally along said path; and regulating the rate of driving the cord in accordance with the winding rate of the filament so that the winding rate at which the cord is fed through the coiled fastener element corresponds to the rate of formation thereof as established by said winding rate. As shown, the filler cord 13 made e.g. of textile material, is withdrawn from a bobbin 15 and fed through the constant-rate feed mechanism 14 which comprises a variable-speed rotary member 25 which is urged by springs 29 towards a stationary guide ring 18 so that, in the operative position, the looped portion of the cord 13 is gripped between a circumferential ridge 20 on the ring 18 and the opposed roulette-gear 26, 27 of the rotary member 25. While the feed-mechanism is disassembled, Fig. 1, the cord 13 can be formed into a loop by passing it through openings 28, 19 respectively in the member 25 and guide ring 18 respectively, threading it through an aperture 24 in a recess 24 in the guide ring 18, around the ridge 20, and back through the recess 23. In operation the rotary member 27 is rotated by a motor not shown at such a speed as to feed the cord r3 through a bore 11a in a mandrel 10 and its holder 11 and to advance it at the same rate as the fastener coil 12 is formed on the mandrel.
Patent GB-441655-A (GB)
Title: Inflating connectons for fluid pressure moulding apparatus
IPC: B29D30/06
Filed: 1934-12-08
Abstract: 441,655. Moulding tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, Euston Road, London, and WILLSHAW, H., BROADBENT, F. G., and HARDMAN, J. H., c/o Dunlop Rubber Co., Ltd., Fort Dunlop, Birmingham. Dec. 8, 1934, No. 35334. [Class 87 (ii)] In moulding-apparatus in which the moulding pressure is applied by an inflatable member or air-bag 7, means is provided for connecting the air-bag with the air or other fluid under pressure when the :fluid is admitted to a supply pipe 12. As shown, when air is admitted to the pipe 12, it causes a plunger 10 to move a rubber nozzle 17 against the valve 8 of the air-bag and, at the same time to establish a passage for the air through a passage 13 normally closed by a spindle 20 fixed to a cylinder 9. On "turning-off" the supply to the pipe 12, a spring 15 retracts the plunger, and the parts assume the position shown in Fig. 3.
Patent GB-1361984-A (GB)
Title: Method of increasing strength of vessels particularly high-pressure vessels
IPC: B01J3/04
Filed: 1971-07-28
Abstract: 1361984 Pressure vessels E M KOROLEV M M SHEL and V G LIKUCHEV 28 July 1971 35341/71 Heading B1X A tubular vessel which is to contain a fluid at a pressure which exceeds the physical strength of the vessel's side wall has its strength increased during use by the passage of an electric current through the wall. The current is high enough to produce a magnetic force sufficient to prevent vessel rupture. The current may be direct or alternating and the vessel may be surrounded by a material having a high magnetic permeability. The vessel may be used in the chemical and petro-chemical industries, in the production of synthetic minerals, in geological explorations and in the testing of large equipment under external pressure, e.g. bathyscophes.
Patent GB-337229-A (GB)
Title: Improvements relating to dynamo-electric machines
IPC: H01R43/08
Filed: 1929-11-20
Abstract: 337,229. Ashdown, H. E. Nov. 20, 1929. Drawings to Specification. Commutators; insulation.-In manufacturing commutator bushes a sheet or strip of mica is rolled upon a mandrel to form a tube having walls composed of a number of closely superimposed layers. The edges of this tube are then secured by shellac and the tube cut into suitable lengths which are moulded or pressed to the required shape.
Patent GB-1530048-A (GB)
Title: Internal combustion engine ventilation
IPC: F02B77/13
Filed: 1977-08-24
Abstract: 1530048 Cooling air fans H LIST 24 Aug 1977 [27 Aug 1976] 35443/77 Headings F1B and F1C An I.C. engine 1 is enclosed by a noise-suppressing casing 7 and cooled by air blown between the engine and casing by radial fan 3. To reduce leakage across the fan the intake opening is defined by an aperture 4 in a rigid plate 5 fixed to the engine by spacers 6. Relative movement between plate 5 and engine 1 is accommodated by a high elasticity seal ring 14. Alternatively, plate 5 is part of a rigid intake duct 9 fixed on the engine by members 16 and connected to an intake pipe 19, 20 by a high elasticity rubber tube 18. The casing and intake pipe are lived with sound absorbent material.
Patent GB-465004-A (GB)
Title: Improvements in overhead-housed sliding doors
IPC: E05D15/38
Filed: 1935-12-23
Abstract: 465,004. Sliding doors. HILL, ALDAM, & CO., Ltd., E. (Yendall, W. R.) Dec. 23, 1935, No. 35549. [Class 20 (iii)] A vertically and horizontally sliding door 1, of the kind which rests horizontally above the doorway when open, is guided by roller trunnions and upwardly and rearwardly inclined channel tracks 3 starting at a point above the bottom of the door frame and ending at a point approximately an equal distance behind the frame, and by overhead horizontal tracks 4. The door is counterbalanced by weights 13 and cables 11 acting along the direction of the guides 3. The cables may be secured to the ends of the lower guide spindles 6, Fig. 4.
Patent GB-901868-A (GB)
Title: Improvements in or relating to shock absorbers
Inventor: PICTON JAMES SIMON
IPC: G21C7/20
Filed: 1959-10-21
Abstract: 901,868. Energy absorbing devices. BABCOCK & WILCOX Ltd. Sept. 29, 1960, [Oct. 21, 1959; April 1, 1960], Nos. 35644/59 and 28357/60. Divided out of 11695/60. Class 103 (1). [Also in Group XL (a)] An energy-absorbing device is adapted to dissipate the kinetic energy of a moving body through expansion of a tube by an expander member making an interference fit with the interior of the tube. In the embodiment illustrated an energy-absorbing device 17 is placed at the lower portion of an upright fuel element channel 1 or control-rod channel (not shown) formed in a graphite block in a lower part of the pile of a gas-cooled nuclear reactor. The graphite block 2 rests on a ball race 3 which is supported on a lower grid 4. Coolant gas passes through grid 4 and into channel 1 past radial webs 23 formed on the lower end of the device 17 and past radial fins 38 at the upper part of the device. The fuel element container rests in a central recess 45 of boss 44 of the device 17 and, in operation, the shock-absorber 17 is supported at the lower end of the channel 1 by engagement of the lower end of surface 25 of an outer sleeve 22 with the upper end surface 15 of the support-ring 13; the outer sleeve 22 being connected to the inner sleeve 21 by fins 23. Should a fuel element inadvertently fall through the channel 1 on to the seating 45 provided in the boss 44, a shear pin 43 is ruptured and a hardened steel collar 36 forming the expander member is forced downwardly into a tube 19 which is thereby expanded so that the kinetic energy, or a large part thereof, of the fuel element, is abosrbed and the fuel element is relatively gradually brought to rest. The working parts of the shock-absorber are protected by an outer collar 20 and outer casing members 21, 17. The shaped boss 44 facilitates removal of the shock-absorber by a fuel element grab head. An alternative embodiment is disclosed in the Specification wherein the shear pin 43 is dispensed with and the construction is suitaby designed to facilitate renewal of the deformed tube 19 when necessary.
Patent GB-823994-A (GB)
Title: Colouring of textiles
IPC: D06P3/82
Filed: 1956-11-22
Abstract: Textile materials composed of blends of cellulose fibres and fibres of a cellulose organic acid ester containing no more than 0.29 hydroxyl groups per anhydroglucose unit are dyed or printed, continuously or otherwise, by depositing a finely-divided unreduced vat dyestuff on the textile, heat-treating to cause penetration of the dye into the cellulose ester fibres, applying a reducing agent to convert the dye on the cellulose fibres to its leuco form and finally oxidizing.  The cellulose fibres may be of cotton, ramie, sisal, viscose or cuprammonium rayon or saponified cellulose acetate and are preferably mercerized prior to treatment.  The vat dyestuff is applied as an aqueous dispersion by padding or printing, the dispersion containing the usual dispersing agents and thickeners, several of which are specified. The heat treatment, which preferably follows a drying step, may be effected by hot air, molten metal, infrared radiation or a high-frequency electric field, and for cellulose acetate fibres is effected at 400-450 DEG  F.  Reduction is effected, e.g. at 120-200 DEG  F., with sodium hydrosulphite, sodium or zinc formaldehyde sulphoxylate or a sodium bisulphite-zinc dust mixture in the presence of alkali, the reducing bath also containing, if desired, dispersing agents, levelling assistants and glucose. Oxidation may be effected with alkaline hydrogen peroxide, sodium perborate or acidified sodium nitrite.  Specification 758,442, [Group IV (a)], is referred to.
Patent GB-1161126-A (GB)
Title: Solid Propellant Inhibitor.
IPC: F42B1/00
Filed: 1966-08-10
Abstract: 1,161,126. Propellants. UNITED STATES OF AMERICA, ARMY, SECRETARY OF THE. 10 Aug., 1966 [10 Feb., 1966], No. 35748/66. Heading F3A. [Also in Division C3] A granular solid propellant, e.g. having the shape of a torroid, is inhibited by application of a composition comprising 80-90% by wt. of hydroxy terminated poly-butadiene, 2- 10% organic diisocyanate, e.g. hexamethylene or toluene diisocyanate, 1-15% of silica, carbon black or asbestos and at least 0À04% of ferric oxide, lead stannate, red lead or ferric acetyl acetonate. In the example the propellants used were of the double-base type and some contained aluminium metal and ammonium perchlorate.
Patent GB-1039628-A (GB)
Title: Improvements in or relating to irrigation devices
IPC: A01G25/09
Filed: 1964-09-01
Abstract: 1,039,628. Irrigating apparatus. D. KANE. Sept. 1, 1964 [Sept. 12, 1963], No. 35772/64. Heading A1B. [Also in Division B2] A mobile irrigation system comprises a sprinkler conduit 18 coupled to a header duct 15 and supported by spaced wheeled mobile units 23 one of which carries power means 51 driving said unit and mechanically coupling said drive to the other units by means of rods 64. The power means 51 drives the unit 23 through a chain 53, step-down gearbox 54, chain 55 and sprocket 60 whose teeth engage apertures 62 in the main wheels 67. The conduit may be raised or lowered by means of a telescopic arrangement 29, 48. The gearbox is reversible by means of a lever 65 which may be tripped at the end of each run. Instead of the conduit 18 being connected to a header duct 15, water may be sucked from a trough 64 in which the wheeled unit 23 runs.
Patent GB-862053-A (GB)
Title: Novel substituted styryl ketones and a process for the preparation thereof
Filed: 1959-08-31
Abstract: The invention comprises compounds of the general formula <FORM:0862053/IV (b)/1> wherein n is 1, 2 or 3, and the preparation thereof by condensing a 1-alkanoyl-2-(21-acylamino - ethyl) - 4,5 - dimethoxy - benzene with an appropriate halogenated benzaldehyde.  1 - Alkylidene - 2 - acyl - 6,7 - dimethoxy-1,2,3,4 - tetrahydroisoquinolines are prepared by acylating 1-alkyl-6,7-dimethoxy-3,4-dihydroisoquinolines.  1 - Alkanoyl - 2 - (21 - acylaminoethyl) - 4,5 - dimethoxy benzenes are prepared by gentle acid hydrolysis of the above intermediate compounds.
Patent GB-1390583-A (GB)
Title: Apparatus for determining the position of a fluid actuated  reciprocating piston
IPC: F15B15/28
Filed: 1973-07-27
Abstract: 1390583 Hydraulic actuators PAUL PLEIGER MASCHINENFABRIK KG 27 July 1973 [28 July 1972 24 Oct 1972] 35940/73 Heading F1D An actuator for rotating a valve stem 6, Fig. 1, has a flow indicator 11 in the return or supply line 8' and a bore 10, which is of smaller diameter than the supply line, through the piston 3. When the piston is moving the flow indicator show this until an end position is reached. In this position the flow through the bore 10 is blocked by a seal 12 on an adjustable end-stop 15. If the piston sticks in an intermediate positon flow through the bore 10 is detected by the indicator 11. Fig. 3 shows an embodiment in which the bore 10 is in the casing not the piston, and a valve 17 co-operates with grooves 18 to close the bore at each end position of the piston. If the piston sticks at the end of its travel, the operator has no means of knowing at which end this has occurred. Fig. 4 shows a by-pass 3 with check-valve 34 which allows fluid to flow through the bore 10 only from that end of the piston which is abutting the end-stop. This enables the operator to determine the position of the piston. In Fig. 5, rotation of the valve shaft 6 causes projections 21 on a cam 20 to open a valve 17 thereby allowing flow pulses through a line 10 to be counted at 22. To produce larger pulses a chamber 23 with a spring- loaded piston 24 is provided. Fig. 6 (not shown), illustrates a constructional example of this embodiment.
Patent GB-954440-A (GB)
Title: Trihalovinylsulphenylhalides and their preparation
Inventor: WEIL EDWARD DAVID
Filed: 1960-10-20
Abstract: The invention comprises the compounds of the formula CX2:CX.SX, where each X is chlorine or bromine; the production of such compounds wherein -SX is -SCl by chlorinating the corresponding trihalovinyl di- or polysulphide; the production of trichlorovinyl sulphenyl chloride and bromide by dehydrohalogenating the corresponding tetrachloroethyl compound, e.g. with triethylamine at room temperature; and the production of N-trichlorovinyl mercaptophthalimide and -tetrahydrophthalimide by reacting CCl2:CCl.SCl with phthalimide or tetrahydrophthalimide in the presence of an acid-binding agent.  In addition sulphenyl chlorides of the invention may be converted to the corresponding sulphenyl bromides by means of hydrogen bromide.  The compounds of the invention are said to react with oxygen, nitric acid or hydrogen peroxide to form the corresponding sulphinic and sulphonic derivatives, with chlorine and bromine to form pentahaloethyl sulphenyl halides, with nucleophilic anions, with nitrogen bases, with reducing agents such as HI to give the corresponding disulphide, with aromatic compounds to give trihalovinyl aryl sulphides, with olefines to give 2-haloalkyl sulphides, with acetylenes to give 2-halovinyl sulphides, with H2S to give the corresponding tri- and polysulphides, with organic phosphites to give S-trihalovinyl phosphorothiolates, and with carbanions to give trihalovinyl alkyl sulphides. The compounds of the invention can be used to control soil pathogens (see Division A5). Specifications 949,374 and 949,375 are referred to.ALSO:Pathogens in soil are controlled by applying to the soil a compound of formula CX2 : CX.SX, where each X is Cl or Br (see Division C2).  Similarly used is N-trichlorovinylmercaptophthalimide. Specifications 949,374 and 949,375 are referred to.
Patent GB-1236651-A (GB)
Title: Closing filled plastics containers
IPC: B65B61/18
Filed: 1968-07-29
Abstract: 1,236,651. Injection moulding bottle closures. NIRONA-WERKE NIER & EHMER K.G. 29 July, 1968 [29 July, 1967], No. 36033/68. Heading B5A. [Also in Division B8] A plastics bottle is closed by pressing flat the filler or discharge neck 3 of the bottle, near the rim, applying a plastics sealing strip by injection moulding in a single or multiple mould to the bottle rim, and applying pressure to the rim and sealing strip while the strip sets, by means of jaws or endless belts or chains (not shown). The injection nozzles 18 may be open nozzles, or shut-off nozzles with needle or mushroom sliding valves. The sealing strip incorporates a tear filament or a tear groove.