baber/WOPTO huggingface dataset:
Patent GB-1501199-A (GB)
Title: Lockable articulations
IPC: B62K5/10
Filed: 1975-07-01
Abstract: 1501199 Restraining pivotal movement ANVAR AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 1 July 1975 [5 July 1974] 27715/75 Heading E2F [Also in Division B7] In a construction in which a member 2 can pivot (on bearings 23) about the axis of a shaft 1, arcuate brake shoes 3 are provided within a drum 10 fast with the shaft for bearing against a peripheral wall of the drum; a roller 4 being located between opposed dihedral end faces of the shoes on the end of a link 52 which is pivoted (at 53) to a further link 51 itself pivoted (at 50) to the member 2. As shown two rollers 4, 4' and associated links are provided and links 51, 51' are formed with projections 55, 55' which can be locked between stops 24, 24' on the member 2 and a wheel 6 located on the end of a lever 60 pivoted to the member 2 at 61. When the links are locked as shown the member 2 can tilt freely about the shaft 1, but when wheel 6 is moved upwardly on its lever the links are freed and any tilting movement of the member 2 causes a roller to be moved inwardly and force the brake shoes against the wall of the drum 10, locking the member 2 to the shaft 1. The above arrangement is designed for use in a three wheeled vehicle to enable the body to be tilted with respect to the wheels when going round corners above certain speeds but capable of being locked to prevent such tilting below those speeds. As described a cable 63 operates the lever 60 under the control of a centrifugal governor driven from the vehicle wheels (Figs. 4, 4a not shown) but a manual cable release can be employed (Fig. 6 not shown). In the latter arrangement a pendulum device is linked to the wheel 6 to prevent tilting should a dangerous inclination be reached regardless of the manual control.  In a further embodiment only one roller is employed, the brake shoes being pivoted together at one end. Two sets of links are joined to the single roller to ensure locking occurs whatever the direction of tilting (Fig. 5 not shown). Alternatively in this construction one set of links could be permanently locked to allow free movement in one direction at all times.
Patent GB-1206469-A (GB)
Title: Rotary wing aircraft
Inventor: WILDE GEOFFREY LIGHT
IPC: F02C7/06
Filed: 1967-04-12
Abstract: 1,206,469. Helicopters. ROLLS-ROYCE Ltd. 4 April, 1968 [12 April, 1967; 15 June, 1967], Nos. 16872/67 and 27752/67. Headings B7G and B7W. [Also in Divisions F1 and F2] A gas turbine power plant comprises a main flow duct in which is located a gas turbine gas generator, turbine means driven by gases from the gas generator and having at least one radial flow rotor stage, there being a fan duct radially outwardly of and coaxial with the main flow duct and in which is located a fan, the fan having at least one centrifugal flow rotor stage drivingly connected to at least one radial flow turbine rotor stage. The power plant shown in Fig. 2 comprises a main flow duct 15 and a fan duct 16 disposed therearound. A gas turbine type gas generator comprising LP compressor 19, HP compressor 20, combustion equipment 21, HP turbine 22 and LP turbine 23, is disposed in the main duct 15, gases from the gas generator discharging radially outwardly through a duct 27 in which are disposed contrarotating turbine stages 28, 29. The turbine stage 28 is connected to drive a fan 31 located in the fan duet 16, the fan comprising an axial flow stage 33 and a centrifugal stage 34, air from the fan discharging to a manifold 38 from which it passes through two ducts 39 to the rotor blades 12 of a helicopter in which the power plant is mounted. The air is used for boundary layer control. The turbine rotor 29 is connected through epicyclic reduction gearing 42 to a drive shaft 40 which is arranged to drive the lift rotor 12. Alternatively, the turbine stage 29 may be fixed so that the turbine comprises only rotor 28, the helicopter lift rotor then being driven by other means, not shown. In Fig. 3 a twin-spool gas turbine type gas generator is again utilized in main flow duct 51, the combustion gases discharging through a radial flow turbine 64 mounted on shaft 70 and drivingly connected to a two-stage centrifugal fan 71, 72 located in a fan duet 53 disposed around the main flow duct 51. The fan includes a radial inward flow duct 76 between the two rotor stages. Air from the fan passes from the manifold 80 to the lift rotor blades for boundary layer control and may be utilized to drive the lift rotor either by discharging through nozzles or by being utilized in jet units.
Patent GB-1036557-A (GB)
Title: Improvements in or relating to fluid flow control valves and their manufacture
IPC: F16K7/07
Filed: 1965-06-30
Abstract: 1,036,557. Valves. GROVE VALVE & REGULATOR CO. June 30, 1965 [July 2, 1964], No. 27789/65. Heading F2V. Fluid flow between an inlet 14 and an outlet 22 is controlled by a resilient sleeve 32 engaging a barrier 44, forming part of a cage 30, due to upstream fluid introduced into a chamber 40 via a pressure-reducing pilot-valve and assisting the natural tension in the sleeve. When the inlet pressure is sufficient to cause outward expansion of the sleeve the fluid flows through inlet slots 46 around the barrier 44 and into the outlet 22 via slots 52. The cage 30 is comprised of three separate parts, viz. inlet and outlet tubes 58, 60 and the barrier 44, the slots 46, 52 being formed by milling the tubes 58, 60, a number of strengthening ribs being left; the slots are then machined to provide a Venturi configuration. The barrier 44 may incorporate a frusto-conical boss facing the inlet. Each face of the barrier embodies an extending tongue at one point and pockets housing steel balls at another point whereby the application of an axial force causes the tongues to enter the slots and lock the three parts together, the balls ensuring alignment thereof. In another form (Fig. 10, not shown) the cage parts are secured by silver soldering and the barrier includes a series of radial passages that are gradually uncovered as the sleeve expands to provide a gradually increasing flow.
Patent GB-765372-A (GB)
Title: Improvements in or relating to high temperature lubricant
Filed: 1954-09-27
Abstract: A lubricating composition comprises gallium thickened to a grease consistency with an inorganic colloid.  Colloids referred to are carbon black, graphite, silica, silica gel, calcium silicate, molybdenum disulphide, attapulgus clay, titanium dioxide, barium oxide, bentonite, and the product obtained by treating bentonite with a quaternary aliphatic amine salt, e.g. dimethyldioctadecyl ammonium hydrochloride.  From 30-99 per cent of gallium and from 1-70 per cent of the colloid may be used.  The compositions may be added in all proportions to silicone lubricating oils, such as polysiloxanes, e.g. dimethyl polysiloxanes, polysilcarbanes and polysilanes.  The compositions may be prepared by mixing, heating to 90-500 DEG F. and grinding, or grinding alone when the compositions are mixed with silicone oils.
Patent GB-813983-A (GB)
Title: Improvement in numerical printing
Inventor: JONES KENNETH WARNER
IPC: B41F33/00
Filed: 1954-09-27
Abstract: 813,983. Number-printing apparatus. WARNER-JONES & CO. Ltd., K. Dec. 20, 1955 [Sept. 27, 1954], No. 27844/54. Class 100(2) In numerical printing apparatus having a plurality of rotory number printing wheels actuated by pawls or pitmen the figures on the unit wheel are not arranged consecutively but are spaced apart with other figures in between, the figures being arranged so that for repeat printing of a sequence of numbers, whatever the number is, it is never necessary to impart more than three "cam lifts" to change from one number to the next succeeding number and in particular from the end number of one sequence to the beginning of the next. The invention is described with reference to apparatus having a "tens" wheel and a "unit" wheel with which it is desired to print from the number 24 down to 1 and repeat. The "tens" wheel is engraved 2221111000 and the "unit" wheel 9837621504, deep teeth for operating the "tens" wheel being provided on the ratchet wheel fitted to the "unit" wheel which cause the "tens" wheel to be operated when the figures 1 or 0 of the "unit" wheel are in printing position. Thus, at each change of number to be printed, to arrive at the next succeeding number on, two or three "cam lifts" are necessary and in particular only three "cam lifts" are necessary to change from 1 back to 24. The apparatus for imparting the required number of "cam lifts" may comprise a ratchet disc 11 with pins of three different lengths. The number of pins corresponds to the number it is desired to print and repeat and the length of the pins to wheel one, two or three "cam lifts" are required. The pins A, B, C are connected to an electric source 16 and co-operate with spaced contacts 12, 13, 14 each of which is connected through a solenoid 10 to the other side of the source 16. A short pin makes contact with contact 14 only, a medium pin with contacts 14 and 13 and a long pin with all three contacts, so that according to the length of pin, one, two, or three solenoids 10 are energized. The numbering box 5 is supported, with a box holding drum 4, on a rotating shaft 17. Box cams 1, 2, 3 are provided which are normally spring-urged to a "no change" position but which can be moved to "change" position on actuation of a lever 6 by a cam 7 on the shaft 17. The cams 1, 2, 3 are held on "change" position for a sufficient time to effect a "cam lift" if the solenoids 10 associated therewith are energized in which case levers 9 prevent the return of the levers 6 to the surface of the cam 7 before the box cams have been effective. The number of "cam lifts" imparted therefore depends on the number of solenoids 10 energized which in turn depends on the length of the contact making pin on the ratchet wheel 11. '
Patent GB-1497776-A (GB)
Title: Hammock
IPC: A45F3/24
Filed: 1976-07-05
Abstract: 1497776 Hammocks H G SCHWAGER 5 July 1976 [3 July 1975] 27955/76 Heading A4J Each end of a hammock 1 is provided with a pair of pockets 5 in which the ends of a bow-shaped spring steel member 6 is accommodated, the spring steel members being attached to the upper ends of a collapsible support frame 9.  The frame may be of aluminium and hooks 21 which support the members 6 may be provided with a steel bolt 22 to prevent wear of the hooks.
Patent GB-1382207-A (GB)
Title: Process for making a symbol carrier element for a demonstration or  educational aid device
IPC: G09B25/00
Filed: 1973-06-13
Abstract: 1382207 Injection moulding E AKONTZ J KELLER Z KOVATS E MANHALT J MARTON and I MOLNAR 13 June 1973 [17 June 1972] 28107/73 Heading B5A [Also in Division G5]  Carrier elements into which spiked symbol elements are stuck are injection moulded at 70‹ to 220‹ C. from a mixture of synthetic organic material, a foaming agent and surface treated polymeric fibres. The synthetic material may be PVC or polyurethane containing polyamide fibres and so injected into a mould at 40‹ C. Spherical or polyhedral carrier elements are joined by spiked link elements to form demonstration aids (see Division G5).
Patent GB-1205151-A (GB)
Title: Improvements in or relating to hydraulic power steering systems
IPC: B62D5/097
Filed: 1968-06-13
Abstract: 1,205,151. Power-assisted telemotor steering. INTERNATIONAL HARVESTER CO. 13 June, 1968 [14 June, 1967], No. 28125/68. Heading B7H. For a vehicle hydrostatic power steering system having a fluid power motor 18 for turning steerable wheels of a vehicle and a reservoir source of fluid 10 a fluid controller comprises a housing 14, a gear within a gear or other pump within the housing and operative on rotation of a control wheel 20 to generate a pressure differential between the pump.inlet and outlet and thereby operate valve means to selectively control fluid flow from a pressure source 12 to one end of the motor 18 while releasing fluid from the other end of the motor, the valve means including two shuttle valves 58, 69, each disposed between two poppet valves 59, 60 and 70, 71, and a plurality of check valves which co-operate with the poppet valves. As shown the valve means comprises three parallel bores 67, 51 and 68 in the housing 14 containing respectively three check valves 64, 65 and 66 and a pressure fluid inlet 76; the shuttle valve 58 and two poppet valves 59, 60; and the shuttle 69 and two poppet valves 70, 71. The chambers 52, 55 at each end of the shuttle valve 58 are connected through passages 56, 57 to the two sides of the pump which comprises a wobble gear 24 rotated, by an eccentric shaft 29, within a fixed gear 23 and a distribution valve 28, rotated by a pin 36 in synchronism with the wobble gear 24 and hand wheel shaft 22. On turning the hand wheel clockwise for example the pump 23/24 withdraws fluid from the chamber 56 and supplies it to chamber 57 generating a pressure difference which moves the shuttle valve 58 to the left thereby opening the poppet valve 60 and permitting pressure fluid from the inlet 76 to pass through the passage 67, the check valve 66, the poppet valve 60, the pump 23/24 and the passage 72 to open the poppet valve 70 and pass therethrough to the servomotor 18 and to displace the shuttle 69 to the left thereby opening the poppet valve 71 to permit fluid to be displaced from the servomotor cylinder through the passage 73, and an annulus 82 of the displaced shuttle valve 58 to the outlet 77 to the reservoir. Should the pump 12 fail exhaust fluid passes from the annulus 82 through the check valves 65, 66 to the pump inlet 56, make-up fluid being drawn from the reservoir 10 through the port 77. Each poppet valve (Fig. 11, not shown) includes a pilot poppet valve (96) to reduce the pressure required to open the valve. The control valve means may be used with an open centre steering system or with further hydraulic units by the addition of a balanced poppet by-pass valve (Fig. 12, not shown) which has chambers connected to an outlet pipe of the pump 12 and to the lines 16, 17 to the servomotor 18 to restrict or cut-off fluid supply to the further units in dependence on the servomotor pressure.
Patent GB-824463-A (GB)
Title: Reversible metal window frames
Inventor: WATSON GEORGE
IPC: E06B3/40
Filed: 1957-09-06
Abstract: 824,463. Windows. HOPE & SONS Ltd., H. Jan. 15, 1958 [Sept. 6, 1957], No. 28170/57. Class 20(3) The fixed outer frame members a of a reversible window pivoted for example along a horizontal axis are constructed from a channel member as shown in Fig. 3 the web supporting weather flanges d, e and b, c. Fig. 3 represents the lower part of the frame and for the upper part the flanges b, d are severed from the channel member along the lines i, j giving the section shown in Fig. 2. The sash frame is formed from a channel member k as in Fig. 2 and for the lower part of the flanges p, m are cut off giving the section shown in Fig. 3. The weather flanges c, e and n, o are stepped so that a line through the abutting surfaces of the frames meets the shorter axis of the rectangle formed by the channel members outside the rectangle.
Patent GB-236446-A (GB)
Title: Improvements in machines for grinding or sharpening the blades or cutters of mowing and similar machines
IPC: B24B3/42
Filed: 1924-11-26
Abstract: 236,446. Roberts, J. G. Nov. 26, 1924. Cutting-edges, shaping and treating.-The cutters or blades of mowing or like machines are sharpened by a grinding wheel 24 which is traversed along the cutter. The cutter and the grinding wheel are supported in bearings in frames 2, 3 mounted on a base 1, the frame 3 being adjustable longitudinally of the base to accommodate cutters of different lengths. The cutter spindle 21 is supported in bearings 13, 15 which are adjustable by screws 16 and nuts 18 across the frames towards or from the grinding wheel, and the cutter spindle carries a dog 14<x> driven by a projection 14 on a pulley 11 mounted on a. hollow stub shaft 12 extending from the bearing 13. The grinding wheel spindle has a plain part 23 and a screwed part 22 and is supported in a two-part removable and internallyscrewed bearing carried by the frames 3, and in a pulley 28 which runs in a bearing 25, which is pivotally supported by pins 26. The shaft has a keyway 31 and is driven by a pin on the pulley. The pulleys 11, 28 are driven by belts 35, 33 from pulleys 6, 7 mounted on a shaft 8. In operation, as the pulleys are rotated the grinding wheel engages the rotating cutter blades and moves therealong; at the end of a complete pass the grinding wheel and its shaft are removed and replaced at the starting position. The fixed blade of a mower when being ground is mounted in clamps 37, 38<x>, Fig. 6, which have projections 38 fitting in the bearings 13, 15.
Patent GB-379544-A (GB)
Title: Improvements in or relating to pneumatic ticket despatch tubes for telephone exchanges or the like
IPC: B65G51/30
Filed: 1931-10-12
Abstract: 379,544. Pneumatic dispatch apparatus. McGREGOR, J. E. M., Power Section, Engineer-in-Chief's Office, G.P.O., London. Oct. 12, 1931, No. 28306. [Class 116.] In a pneumatic dispatch system for tickets &c. the ticket is byepassed from the main airstream into a guide 18, Figs. 3 and 5, disposed in a discharge terminal and freely open to the stream ; the ticket is discharged by striking a door 19 which is pivoted about an horizontal axis near its centre in such a way that the door normally remains closed but is readily opened by the impact of the ticket. The system may comprise a single tube with a series of dispatch terminals and one discharge terminal, or a series of tubes each with a discharge terminal and terminating in a panel slotted for the insertion of the tickets ; the ends of the tubes may be bell-mouthed and perforated for the intake or discharge of air. In either form the connection to the fan or blower may be made in front of the terminal or in the terminal itself ; in the latter case the air passes through apertures 23 into chambers 22 and thence to the blower by a chamber 24. The guide is of wire and the door, which may be of twin doors separately hinged and rigidly connected, of aluminium etc.; a seal of leather &c. may be placed around the top or both halves of the door aperture and a resilient stop 21 is also provided. The dispatch terminal may comprise a guide 8 leading to rollers 11, 12, Fig. 6, rotatable through gearing from a spring-controlled rack 9 or a thumb wheel. In another form, Fig. 8, the terminal is closed by a spring-closed hinged lid 16.
Patent GB-247320-A (GB)
Title: Improvements in boilers for heating and hot water supply and in furnace grates therefor
IPC: F24H1/30
Filed: 1924-11-27
Abstract: 247,320. Stevenson, A. Nov. 27, 1924. Grates.-In a double boiler having two superimposed internallytired boiler parts 6, 7, each with its own water circulation and grate 8, 11, the grate of the upper or each unit is constructed in the form of a tubular grid element in communication with the waterspace. The grates may be cast or with fixed or removable tubes.
Patent GB-1389791-A (GB)
Title: Stud welding pistol with releasable bearing foot support
IPC: B23K9/20
Filed: 1973-06-15
Abstract: 1389791 Welding by pressure HILTI AG 15 June 1973 [5 July 1972] 28503/73 Heading B3R A stud welding pistol has releasably arranged at the front end 4 of its elongate body 1 a support 5 carrying one or more bearing feet 6, 7, the support being engaged with the front end of the body by a snap connection, the connection being releasable by resilient deformation of the support. In an embodiment the support is cup shaped with two feet 6, 7 and has an annular bead 9 engaging in an annular groove 8 forming part of the front end of the pistol. The front end of the body and/or the support may be slit for resiliency and the groove may be provided in the support with the bead on the end 4. The support may be of electrically conductive material, e.g. metal to establish electrical connection between the feet 6, 7 and a contact element 10. The stud holder and further elements may be provided on the support.
Patent GB-1512207-A (GB)
Title: Electric switchgear
IPC: H01H21/40
Filed: 1975-07-08
Abstract: 1512207 Shaft couplings IMI SANTON Ltd 8 July 1975 [27 June 1974] 28509/74 Heading F2U [Also in Division H1] A fuse switch such as that described in Specification 1,478,838 (see Division H1) is provided with snap action by drive means comprising a pair of axially aligned shafts 4, 3 connected by a lost motion coupling in which two coupling parts, 7, 8, one connected to each shaft, are rotatable relative to one another, upon application of a turning force to one of the shafts, from a normal relative position against a resilient means 11, 12 and for a predetermined angular movement limited by engagement of abutment surfaces 9, 10 of the two parts whereby a driving force is applied to overcome a detent mechanism and snap the fuse carriers relative to a base member carrying the fixed contacts.
Patent GB-1393400-A (GB)
Title: Photographic direct positive processes and silver halide materials therefor
IPC: G03C5/50
Filed: 1972-06-19
Abstract: 1393400 Photographic direct-positive processes and silver halide materials EASTMAN KODAK CO 19 June 1972 [17 June 1971] 28606/72 Heading G2C A photographic silver halide emulsion of which the grains are predominantly surface-sensitive, which has been surface-sensitized to an extent such that, when the emulsion is coated at 400 mg silver per square foot on a transparent support, exposed to give manimum density and processed with a surface developer (which is Kodak (RTM) DK-50) for 6 minutes at 27C, it gives a diffuse transmission density of less than 0.25, contains an electron-accepting compound and/or a desensitizing concentration of a sensitizing dye. The transmission density is pref. less than 0.1. The emulsion may have been surface-sensitized to an extent which, for an unsensitized emulsion of the same silver halide composition and grain size distribution in the absence of the electron-accepting compound and/or sensitizing dye, would give (i) at least a 0.3 log E speed increase and (ii) the capability of giving a density of at least 0.3 when exposed and processed as above. The silver halide may be predominently silver bromide and the grains may be monodisperse. The electronaccepting compound may have a cathodic half-wave potential more positive than -1.0 e.g. phenosafranine (Ex2) and 1,1<SP>1</SP>-di-n-butyl-4, 4<SP>1</SP>- lipyridinium dilromide (Ex6). The sensitizing dye may have a cathodic half-wave potential more negative than -1.0 an an anodic half-wave potential more positive than +0.4 (see Ex1 and 3 to 9). The emulsion may contain a fogging agent which may be a hydrozine or an N-substituted cycloammonium salt (see Ex7), in which case the imagewise exposed emulsion is developed with a surface developer to obtain a direct-positive image. In Examples 1 to 6 and 9 the exposed emulsion is developed in a fogging developer and in Example 8 the emulsion is overall flashed during development to give direct-positive images.
Patent GB-369896-A (GB)
Title: Improvements in and relating to telemetering systems
IPC: G08C19/06
Filed: 1930-09-25
Abstract: 369,896. Electromagnetic relays. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hall, E. H. ; 32, Greenhill Avenue, Spring- field, Pennsylvania, U.S.A.) Sept. 25, 1930, No. 28757. Convention date, Sept. 25, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (v).] Relays on an alternating-current circuit 19 of fixed voltage and frequency are made responsive to continuous current, the continuous current circuits 11, 12 feeding the central coil 18 of reactors 15 provided with alternating- current windings 16, 17. The shunts 14 may have different ratios. In modifications, two reactors 15 are series-connected, or two continuous current control windings may be located on a single reactor core so that additive response on the relays may be effected.