baber/WOPTO huggingface dataset:
Patent GB-171743-A (GB)
Abstract: 171,743. Vesme, E. July 26, 1920. Switches, actuating; mercury switches.-A switch is actuated by the difference of pressure between two gas systems and controls apparatus for restoring equilibrium. The switch comprises two cylinders 34 connected by a tube 35, filled with mercury up to the level of a window 45. An excess of pressure in one cylinder causes the mercury to rise in the other one, raising a metal float 44 into contact with an insulated rod 43, and thus closes an electric circuit controlling a relay which actuates a valve in the appropriate gas-system so as to restore equilibrium. The rods 43 may be adjusted by handles 43'. The cylinders 34 may contain pure vaseline oil to prevent sparking.
Patent GB-1214299-A (GB)
Title: Solenoid operated devices
Inventor: KNOWLES JOHN ANTHONY
IPC: H01F7/16
Filed: 1967-04-14
Abstract: 1,214,299. Controlling vehicles. JOSEPH LUCAS (INDUSTRIES) Ltd. 26 March, 1968 [14 April, 1967], No. 17188/67. Heading B7H. [Also in Divisions F2 and H1] An electromagnet, for preventing operation of a gear-box at high engine speeds, has " pull in " and " hold in " coils 18 and two armatures 14, 15 (or one armature 14 and a non-magnetic part 15) biased into engagement by respective springs 16, 17, the spring 16 being stronger than the spring 17 so that when the coils 18 are not energized the armatures are moved away from the fixed core 12. The coils are energized on closure of an engine speed sensitive switch (not shown) when the engine speed is below a predetermined level. The armature 14 is attracted into the coils and the armature 15 or an alternative non-magnetic part will move in the same direction so that its outer end is withdrawn from the gear-box to allow the gears to be operated to select a lower gear. Toward the end of its movement the armature 14 engages a plunger 24 to open contacts 13 and de-energize the " pull in " coil. A non-magnetic spacer may be provided between the armatures 14, 15 (Fig. 2, not shown). If the driver applies pressure to the gear selector lever before the engine speed falls the armature 15 will be trapped and not move until the pressure is removed.
Patent GB-1467108-A (GB)
Title: Drill apparatus suitable for drilling rock
IPC: B25D17/26
Filed: 1975-04-25
Abstract: 1467108 Lubricating hammer drills TAMPELLA AB OY 25 April 1975 [25 April 1974] 17252/75 Heading B4C A fluid pressure drill of the hammer piston type comprises a flushing tube 5 which passes through the hammer piston 6 via a passageway 7, said passageway providing a lubricating channel for an air oil mixture from inlet 14 to lubricate movement of a drill steel 4 in its associated bushing 12. A rear end portion 1 of the piston acts as a pump and control of direction of lubricant is effected by one-way valves 10, 11.
Patent GB-972753-A (GB)
Title: Improvements in or relating to seals for electrolytic capacitors
IPC: H01G9/10
Filed: 1963-05-02
Abstract: 972,753. Capacitors. TELEGRAPH CONDENSER CO. Ltd. May 2, 1963 [May 18, 1962], No. 17333/63. Heading H1M. A seal for an electrolytic capacitor comprises a glass-to-metal seal reinforced by a compressible member compressed between the glass-to-metal seal and an annular metal member. In Fig. 1 an oxidized tantalum lead wire 12 affixed to a tantalum anode 11 is forced through a P.T.F.E. gasket 14 which is contained by a press-fit in a silver-plated brass annulus 13. The assembly is inserted into a silver-plated brass case 26 and held in place by an internal beading 27 engaging a groove in the annulus, and adhesive or caulking material 28 may be provided in the groove. An elastomeric 0-ring 15 is placed in a recess in gasket 14 and is compressed by a standard glass-to-metal seal comprising a glass ring 16 fused to a central metal eyelet 20 and to a surrounding metal washer 17. Lead wire 12, previously butt-welded to a nickel wire 21, extends through the eyelet 20 and is held in place by solder 22. The washer 17 is soldered at 18 to the metal case. In a modification, Fig. 2 (not shown), the part of gasket 14 within the annulus 13 is replaced by an elastomeric plug vulcanized to the annulus 13. In a further modification, Fig. 3 (not shown), the gasket 14 and ring 15 are replaced by a single elastomeric gasket, the lower half of which fits within annulus 13 and is vulcanized to it. The anode material may be aluminium, zirconium, or niobium instead of tantalum, and the electrolyte may be sulphuric acid.
Patent GB-1470437-A (GB)
Title: Resin stabiliser systems of organotin sulphur-containing compounds
IPC: C08K5/57
Filed: 1974-04-19
Abstract: 1470437 Resin stabilizer systems containing organotin sulphur-containing compounds DART INDUSTRIES Inc 19 April 1974 [23 April 1973] 17341/74 Heading C3P A composition for extending the heatstability of a halogen-containing resin comprises (a) an organotin sulphur-containing compound having the sulphur atom of a sulphurcontaining group or a sulphur atom attached to the tin atom and a hydrocarbon or substituted hydrocarbon group attached directly through a carbon atom to the tin atom, and (b) an alkali metal bisulphite, carbonate, hydroxide, oxide, thiocarbonate, bicarbonate, metabisulphate or mixtures thereof. The preferred organotin compounds are organotin mercaptides, organotin mercaptoacid esters, organotin mercaptoacids, organotin sulphides and organo thiostannoic acid, e.g. dibutyltin bis-(isooctylthioglycolate), monobutyltin tris - (isooctylthioglycolate), dibutyl tin dilaurylmercaptide, butyl thiostannoic acid, dioctyltin bis-(isooctylthioglycolate), dimethyltin bis - (isooctylthioglycolate), monomethyltin tris-(isooctylthioglycolate), and dibutyltin bis-(isooctyl-betamercaptopropionate). Component (b) may additionally contain one or more of an alkaline earth metal oxide or hydroxide or an organic over-based complex of an alkali metal or alkaline earth metal base.
Patent GB-1170885-A (GB)
Title: Improvements in or relating to Moulds and Moulding Processes
Inventor: ROSIER JEAN-JACQUES
IPC: B29C45/14
Filed: 1968-04-10
Abstract: 1,170,885. Injection moulding. J.-J. ROSIER. 10 April, 1968 [10 April, 1967; 15 Jan., 1968], No. 17386/68. Heading B5A. An element is injection moulded on to an edge of a sheet after the edge has been tensioned by imparting undulations to it. In the embodiment of Fig. 3 a tubular member is injection moulded on to the edge of an aperture in a sheet 1 clamped between mould parts 4, 5. Pins 7 and 8 extending from the latter tension and undulate the sheet edge. Alternatively two sheets of a bag may be joined together at their edges by injection moulding a strip about those edges which are tensioned in the manner described.
Patent GB-1285846-A (GB)
Title: Feeding device for sheet-like members
IPC: B65H3/04
Filed: 1971-05-27
Abstract: 1285846 Linkwork NATIONAL CASH REGISTER CO 27 May 1971 [4 Sept 1970] 17391/71 Heading F2K [Also in Division B8] A uniformly rotating driving shaft 82, Fig. 3, has fixed thereon a crank arm 80 from which projects a rod 78 carrying a roller 76. A driven shaft 54, Figs. 2 and 3, has fixed thereon a rectangular block 68 having a radially-aligned elongated slot 74 therein. The roller 76 is positioned in the slot 74 and the axes of the shafts 82, 54 are parallel and offset from each other by a distance d, so that a cyclically variable rotation of the shaft 54 is produced, the shape of the slot 74 allowing variation in the distance between the axis of the shaft 54 and the roller 76.
Patent GB-1028575-A (GB)
Title: Improvements relating to current collectors
IPC: B60L5/38
Filed: 1963-05-02
Abstract: 1,028,575. Third rail current collectors. H. H. C. KRUEGER. May 2, 1963, No. 17415/63. Heading B7L.  A third rail current collector has a shoe 5 moved both manually and by a power medium into or out of contact with a rail, a mechanical latch holding the shoe either in, Fig. 1. or out of, Figs. 3, 4 (not shown), contact with the rail. The shoe is carried by two arms 6 pivoted at 7 to frame 21 and connected by two springs 4 to a cross-head 3. A sleeve 10 fixed to crosshead 3 carries a piston 8 in cylinder 1 and pawls 9; a rod 11 sliding in sleeve 10 has a pin 12 extending through slots 13 in the sleeve and being fixed to a piston 14. The rod 11 carries a lug 19 and lever 20 and is biased upwardly by a spring 22. In the position shown, the shoe 5 is held in engagement with a rail by pawls 9 engaging in cylinder recess 9a. To withdraw the shoe, compressed air is supplied through port 16 to lower piston 14 to withdraw the pawls 9; the pin 12 then engages sleeve 10 and piston 14 moves sleeve 10, piston 8 and the pawls 9; this pulls cross-head 3 down to relieve springs 4 and allow shoe 5 to drop under its own weight with that of arms 6. Pressure is then released and spring 22 raises rod 11 by the extent of slots 13. To re-engage the shoe, fluid pressure is supplied through port 17 to raise piston 8, pawls 9, rod 11, sleeve 10 and crosshead 3 resulting in springs 4 pressing the shoe against a rail, the pawls 9 engaging groove 9a to lock the shoe in this position and the fluid pressure is released. To manually disengage the shoe, lever 20 is depressed to lower crosshead 3 and piston 14 to release the pawls &c. as before. In Figs. 2, 3 (not shown) the piston and cylinder containing the locking pawls is mounted in a horizontal position to swing the shoe to beneath the rail and further piston and cylinder means causes the shoe to rise into engagement with the rail. The pawls lock the shoe in the disengaged position.
Patent GB-1003576-A (GB)
Title: Improvements in or relating to polymerisation processes
IPC: C07C2/24
Filed: 1962-05-07
Abstract: In the polymerization of olefins having at least 3 carbon atoms in the presence of sodium or lithium dispersed on an anhydrous potassium compound, a normally gaseous paraffin is also present, preferably propane.  The mol. ratio of paraffin to olefin is preferably at least 0.2; suitable olefins are propylene, isobutene, styrene, butadiene and isoprene or mixtures thereof or with ethylene.  Other details are as described in the parent Specification.
Patent GB-356256-A (GB)
Title: Improvements in propellent powders
IPC: C06B25/22
Filed: 1930-06-05
Abstract: 356,256. Explosives. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Du Pont de Nemours & Co., E. I. ; Wilmington, Delaware, U.S.A.) June 5, 1930, No. 17454. [Class 9 (ii).] A propellent powder capable of being waterdried comprises nitrocellulose in combination with a polynitrotoluol and an ester of an organic acid such as dibutyl phthalate, diethyl phthalate, dibutyl tartrate, ethyl palmitate, or acetyl laurins which is acetyl-modified coco nut oil and consists of a mixture of monoacetyl-dilaurin and diacetylmonolaurin. The nitrocellulose should preferably contain more than 12 À9 per cent of nitrogen ; and a stabilizer such as diphenylamine may be added to the above ingredients. An example contains 85 parts of nitrocellulose, 10 parts ofdinitrotoluol, 5 parts of dibutyl phthalate, and 1 part of diphenylamine. The proportions may be slightly varied. The nitrocellulose is first dehydrated with denatured alcohol, the colloidid by the addition of ether and the dinitrotoluol and ester, less alcohol and ether being required than usual. The diphenylamine may be dissolved in the ether.
Patent GB-735710-A (GB)
Title: Improvements in and relating to the regeneration of catalysts
Inventor: GODDARD REGINALD EDWIN
IPC: B01J8/12
Filed: 1952-07-11
Abstract: In the formation of para-xylene by isomerization of a mixture containing meta- and orthoxylene, the preheated feed flows upwards through a reaction zone in countercurrent with granules of alumina-silica catalyst at a temperature of 400-500 DEG  C., and the catalyst contaminated with carbonaceous material flows downwards by gravity through a stripping zone to a series of regeneration zones where it is treated in co-current with oxidizing gas (see Group III). The amount of carbonaceous material on the catalyst leaving the reaction zone should not exceed 2 per cent (preferably 1 per cent), calculated as carbon.ALSO:<PICT:0735710/III/1> Granular catalyst contaminated with carbonaceous deposits is regenerated by passage by gravity through a zone where it is stripped with inert gas, and then through a series of regeneration stages in each of which it is brought into contact in co-current flow with a stream of oxidizing gas fed to and taken off from the catalyst in that stage, there being no cooling of the granules by indirect heat exchange at any stage in the process. In the apparatus shown, xylenes are isomerized (see Group IV (b)) in reaction zone 11 and the alumina-silica catalyst passes through stripping zone 12 and then in succession through regeneration zones 1, 2, 3, 4.  One stream of oxidizing gas enters at 21 and passes downwardly through zones 3, 2, 1 in series to outlet 27, being cooled in heat exchangers 9, 10 between the zones; a second stream of oxidizing gas enters at 22 and passes down through zone 4 to outlet 29.  The gas from outlet 29 is used to convey regenerated catalyst up through line 30 to elutriator 15, from which fine particles are removed at 31, to reservoir 14. Catalyst may be removed continuously or intermittently through line 32 to vessel 16, and fresh catalyst may be introduced from vessel 17.  Inert gas, e.g. nitrogen, is fed at 33 and 34.  The heat exchangers 9, 10 may be used to heat the reactants or the regeneration gas.  The amount of carbonaceous material on the catalyst leaving the reaction zone should not exceed 2 per cent (preferably 1 per cent) calculated as carbon, and the regeneration temperature should not exceed 550 DEG C.  Specifications 544,063 and 551,048 are referred to.
Patent GB-483118-A (GB)
Title: Improvements in or relating to devices and processes for the development of light sensitive materials
IPC: G03D7/00
Filed: 1937-06-23
Abstract: 483,118. Photographic developing - apparatus. SOKAL, S. (Kalle & Co. Akt.-Ges.) June 23, 1937, No. 17527. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 28, 1937.] [Class 98 (ii)] In apparatus for developing photographic prints, the prints are supported on edge in an unrolled state in a developing chamber and developing gas is blown through the chamber. Preferably the chamber is in the form of a rectangular parallelopiped having one edge short in comparison with the other two, this edge being horizontal. Inlet and outlet conduits for the gas are arranged so that it sweeps across the surface of the prints. In the form shown, the prints are placed in a chamber 3 connected through a multiple valve 5 with an ammonia chamber 1 or with a chamber 2, Fig. 2, containing water. Heating means may be provided in both chambers 1 and 2, and a porous stone or filter paper may be placed in chamber 2 to assist evaporation of the water. A fan 4 is arranged at the top of the chamber 3 and is connected also to the chambers 1 and 2 through the valve 5, so that in one position of the valve, as shown in Fig. 2, ammonia is circulated over the prints and in the other position air from the chamber 2 is drawn through the chamber 3 for degassing. The operating handle 12 of the valve 5 may be arranged to prevent the opening of the door 11 of the chamber 3 when the apparatus is working.
Patent GB-1525156-A (GB)
Title: Process for the adhesion of photographic layers to a film web by means of a corona treatment
IPC: B29C59/10
Filed: 1976-04-30
Abstract: 1525156 Corona discharge treatment of films AGFA-GEVAERT AG 30 April 1976 [30 April 1975] 17665/76 Heading H1X A moving film web 1 is subjected to A.C. corona discharge in two consecutive stages, the A.C. frequency being from 5 to 100 KHz in the first stage 2, and from 500 to 2000 KHz in the second stage 3. Each stage may comprise at least one pair of rollers 4, 7 or 5, 8, with the discharge 9 or 10 generated therebetween. As shown, each pair comprises a metal roller 4 or 5 connected to an A.C. voltage source and covered with a dielectric layer 6, e.g. of PTFE, and an earthed metal roller 7 or 8. Alternatively, the rollers of the second stage 3 may both be isolated from earth, and supplied with A.C. voltages having a 180 degree phase difference. The web 1 runs at 0À5 to 1À5 m./sec., in contact with the rollers 7 and 8, and spaced from the first stage roller 4 by 0À5 to 2 mm., and from the second stage roller 5 by 0 to 0À5 mm. The second stage preferably takes place in an atmosphere of nitrogen. The web 1 may be of polyethylene coated paper for coating, after corona treatment, with a photographic silver halide emulsion.
Patent GB-977223-A (GB)
Title: Improvements in rotary hydraulic pumps or motors
IPC: F04C2/344
Filed: 1961-05-15
Abstract: 977,223. Rotary hydraulic pumps and motors. BAGHUIS N.V. May 15, 1961 [May 24, 1960], No. 17666/61. Heading F1F. A rotary hydraulic pump or motor having outwardly sliding radial vanes comprises a rotor 1, Figs. I and 2, concentrically rotatable with respect to the cylindrical bore of a central casing port 6 closed at its ends by cover plates 9, 10. The rotor 1 rotatable in plate-like bearings 5 is formed with a plurality of radial slots 3 each mounting a pair of vanes 2 spring- urged into engagement with the non-circular inner surfaces of ring members 11 located one at either end of the casing port 6. The central casing part is divided into two working chambers 14, each having an inlet 7 and an outlet 8, by elements 13 adjustably secured in longitudinal grooves 12 in the casing by screws 15. The ends 17 of the elements are keyed into the rings 11 to prevent the latter rotating.
Patent GB-749384-A (GB)
Title: Improvements in or relating to guide arrangements for machine tool slides
IPC: F16C29/12
Filed: 1953-06-25
Abstract: 749,384. Machine-tool details. WERNER AKT.-GES., F. June 25, 1953 [June 27, 1952], No. 17695/53. Class 83 (3). A carriage guide for machine tools comprises a first part 3, slidable on a second part 1, the first part having extensions 5 which embrace the second part and carry contact strips 6 secured against longitudinal movement by dowels 7. Each strip has a plane side engaging a guide surface and an opposite side with two inclined surfaces 10, Fig. 2, engaged by a pair of separately adjustable wedges 11. The extensions 5 may be integral with part 3, or may be secured thereto by transverse bolts and dowels.
Patent GB-108795-A (GB)
Title: Improvements in Electric Fuses.
IPC: H01H85/00
Filed: 1916-12-09
Abstract: 108,795. Bradshaw, W. E., and Callender's Cable & Construction Co. Dec. 9. 1916. Fusible cut-outs.-An electric fuse combined with a resistance and choking-coil element for testing an electric circuit on which a fuse has blown due to overload or short circuit, comprises a fusible element b located in a tube mounted upon a handle and having end contacts engaging contacts f, f<1> mounted upon a base. The ends of the tubes are closed by hinged metal caps bb held in place by springs cc fixed upon the base. Between the contacts f, f<1> an iron core m is mounted carrying a winding l of resistance metal so that the winding serves both as a resistance and as a choking-coil. One end of the wind. ing is connected to a terminal block h in connexion with the fuse terminal f<1> and the other end is connected to a block j in connexion with the outgoing flexible cable x. The incoming cable w is connected to the fuse terminal f. When the end-pieces on the flexible cables are connected in the circuit to be tested, the circuit is completed through the fuse band through the combined resistance and choking- coil in series therewith, thereby confining the current in the event of a short-circuit to safe limits. If the fuse does not blow under these circumstances, the coil l may be short-circuited by a plug inserted in the gap v between the contact blocks h and j so as to test the circuit on the fuse only. The apparatus is shown in a portable form but it may be a separate unit attached to a testing panel.
Patent GB-508740-A (GB)
Title: Suspended folder for filing cabinets
IPC: B42F15/02
Filed: 1938-06-14
Abstract: 508,740. Filing folders ; tabs. ERNST, SEN., J., ERNST, JUN., J., and GEIGER, E., (trading as ERNST & CO., J.). June 14, 1938, Nos. 17716 and 17717. Convention dates, June 14, 1937 and Nov. 13, 1937. [Classes 16 and 146 (i)] A document &c. folder for use in a filing cabinet with a suspending rail on at least one of the edges of the folder, has a beading or similar guiding means on the lower long edge of the rail to receive a similar beading or member on a rider, clamp, or the like whereby the latter cannot be pulled off from above. As shown in Fig. 3, the front portion a<1> of a folder is provided with a rail b having a beading c on its front lower edge. A rider e comprising a folded member adapted to receive an index tab has on the front leg a beading d adapted to be engaged with the beading c by a lateral sliding movement, and tongues f struck out of the front leg are passed through apertures in the back leg to rest on the top edge of the rail b. In the form shown in Fig. 8, spring clamps h are used instead of riders, each clamp comprising end portions k<1> bent forwardly and downwardly, and a central portion k<11> which is bent backwardly over the top edge of the rail b. The portions k<1> have lateral indentations l and the portion k<11> has a bulge m, whereby a rail n on the back edge of another folder and laterally grooved on one side and a projection on the other can be thrust upwardly and beneath the portions k<1> and be retained therein to join the two folders together. The ends of each rail b which engage supports in a filing cabinet have one leg bent around the other leg to provide a rounded smooth edge which allows free sliding of the rail.
Patent GB-1390077-A (GB)
Title: Printing apparatus
IPC: B41J5/30
Filed: 1972-04-18
Abstract: 1390077 Printing apparatus CASIO COMPUTER CO Ltd 18 April 1972 [20 April 1971] 17819/72 Heading G4H Each word fed to a printing mechanism 20 from a keyboard 11 is only printed after the detection by a control unit 21 of a succeeding "space", "tabulation" or "carriage return" signal so as to allow for the correction of keyboard errors. Each word is fed in a seven-bit code to circulating shaft registers 15, 16 and 13; when the first character of the word appears in register 13 it is also fed to another register 18. When, e.g. a space signal is entered via the keyboard 11, it is detected by unit 21 which causes register 10 to transmit the first character to a driving circuit 19 for printing; this character having meanwhile reappeared in register 13, unit 21 sends an inhibiting signal to gate 14 so that it is cleared from the registers. This procedure is repeated for each subsequent character of the word, and for the space signal. Any further words which may have been entered are then printed in their turn when their respective space, tab or return signals are detected.
Patent GB-583010-A (GB)
Title: An improved construction and arrangement of roller and other skates
IPC: A63C17/18
Filed: 1944-09-20
Abstract: 583,010. Skates. GUTTRIDGE, S. Sept. 20, 1944, No. 17931. [Class 132 (i)] A roller skate or blade skate has its rollers or blade mounted upon a chassis having upwardly projecting pins which may be detachably secured in apertured lugs projecting downwardly from a skate plate, shock absorbing means being provided to insulate the skate plate from the chassis. As shown in Fig. 1, the upwardly projecting pins 10 of the chassis pass through the lugs 4 secured to the sheet metal skate plate 1 and are secured by recessed nuts 11. The skate plate and lugs may alternatively be formed in one aluminium or alloy casting. Rubber buffers and/or springs 12 are provided between the nuts and the lugs and between the lugs and the chassis, or, alternatively, the pins 10 may each be formed with a recess into which a spring-loaded locking- pin is adapted to snap. The roller chassis (Figs. 1, 5 and 7) comprises a metal rod with square end members 8 and inclined steering pins 6, on which swivel axle housings containing the roller axles 19. Each axle housing is slotted transversely to receive a steering damper plate 23 which is slotted to engage in a recess 25 in the steering pin 6. The damper plate may be adjusted by means of screws 26 which control springs 27.