baber/WOPTO huggingface dataset:
Patent GB-1422021-A (GB)
Title: Suction dredger
IPC: E02F9/06
Filed: 1973-01-29
Abstract: 1422021 Taking up slack in flexible elements GOYO-BALLAST CO Ltd 29 Jan 1973 [28 Jan 1972] 4341/73 Heading B8B [Also in Divisions E1 and E2] A cable 8, which is used to suspend a flexible suction conduit 3 from a dredging vessel, passes over a pulley 21 mounted on a piston 20 which moves within a cylinder 17 in response to sealevel movements; a control mechanism being provided to sense movement of the piston outside predetermined limits and to reverse such movement by supplying fluid to or discharging fluid from the hydraulic circuit of the cylinder 17. Inductive sensors 27, 28 detect movement of a rod 31 on the piston and send signals representative of magnitude and direction of piston movement to control circuitry 43 (Fig. 2, not shown) which operates valve 40 or 41 to release fluid from or admit fluid to the cylinder. A cable winch drum 13 is controlled via devices 47, 48 by the circuitry 43 to prevent movement of the winch drum which would conflict with the corrective movement being induced in the piston. However if sea level movements exceed a second higher set of limits the circuitry causes reverse movement of the winch drum to supplement the corrective action of the piston.
Patent GB-995859-A (GB)
Title: Pigmentary titanium dioxide
Inventor: EVANS ARTHUR WALLACE
IPC: C01G23/07
Filed: 1962-02-05
Abstract: Titanium dioxide of which more than 95% is in the rutile form is made by the reaction between an oxygenating gas and a titanium tetrahalide, in the presence of hot inert solid particles and of zirconium tetrahalide; the term "halide" does not include "fluoride." The particles, of diameter range 74-1800 m , may be of TiO2, and may contain 1% KCl, and a bed thereof may be fluidized or in the form of a heat-exchanging fountain circulating between two stages.  An inert gas may be added to assist fluidization.  The reaction temperature of 900-1200 DEG  C. may be maintained autothermally; alternatively an external source of heat may additionally be used, e.g. by burning a fuel, e.g. oil, C, CO, or by electrical heating.  The proportion of Zr tetrahalide is 0.5-7% by weight of Ti tetrahalide, calculated as the oxides or a proportion of Zr tetrahalide such that up to 25% of the weight of the final product is ZrO2. The halides are preferably the chlorides.  The oxygenating gas may be oxygen with or without an inert gas, e.g. as air.  Other substances may be added to the bed, e.g. 0.1-10% Al trihalide, 0.01-1% Si tetrahalide, 0.01-1% water, or a source of K, Rb or Cs.  The halides of Ti and Zr may be preheated to form vapour and the vapours led into the reaction zone mixed or separately; if the Zr halide and oxygenating gas are introduced together, they should be preheated to below reaction temperature, e.g. up to 300 DEG  C.  In a fluidized bed, about 60-80% TiO2 formed will be entrained in the effluent gases, and is mainly rutile.  The residual TiO2 mainly forms an aceretion on the bed particles; excess bed material is removed continuously or at intervals and may be ground, wet or dry, in mills with e.g. at least one surface of polyurethane rubber.  The particulate matter and ground-off TiO2 particles may be classified by gas or liquid separation; the particles are returned to the reaction zone; the ground-off TiO2 may be used, e.g. in vitreous enamels.  In examples, up to 72% of TiO2 produced was entrained, up to 99% was in rutile form, tinting strength was up to 1680 (Reynolds scale) and mean crystal size was down to 0.15 m .  Specifications 761,770, 860,301, 900,050, 919,019, 968,660, 968,832 and 988,878 are referred to.
Patent GB-1022907-A (GB)
Title: Radiant energy measuring devices
IPC: G01N21/21
Filed: 1964-02-03
Abstract: 1,022,907. Photo-electric polarization apparatus. Feb. 3, 1964 [Feb. 26, 1963], No. 4417/64. Heading G1A. The invention relates to apparatus for determining the polarization characteristics of samples for radiation of a particular wavelength or sweep of monochromatic wavelengths. Besides investigation of the transmitted and scattered radiation fluorescence from the sample may also be evaluated. In one embodiment radiation from a source 1 is chopped at 11 and directed by mirror 12 into a monochromator 13. The beam from the monochromator falls on sample cell 14 and in part passes through to detector 16. Scattered radiation or fluorescence is received by rotatable polarization device 17 and fed to detector 19. A filter 18 may be used to remove either scattered or fluorescent radiation. A further polarization unit between the monochromator and the sample cell may be provided. The output from detector 16 is used to control slit-drive motor 24 to maintain constant energy in the path through the cell. The output from detector 19 is fed to a potentiometer network 28, 29 determining the calibration of the system from a tapping on which is taken an output to differential amplifier 30 also fed from potentiometer 26 with a signal from detector 16. Amplifier 30 controls recorder 31. Switches 35 enable the output from detector 19 to be recorded directly. Either the monochromator or the polarization device or both may be varied with time to form a test record. If both are fixed, variation of the sample with time can be investigated. In a modification of the embodiment source 10 and detector 19 may be interchanged and polarization device 17 inserted between the sample cell and monochromator. In a further modification only the polarization device is moved. In a second embodiment (Fig. 4) the radiation from the monochromator is directed alternately to the sample cell 14 and to a reference cell 40. The radiation paths beyond these cells passes through coupled polarization devices 17 and 41, drivable by a common motor 20, to detector 19 whose output is switched in synchronism with the radiation beam switching between two signal paths corresponding to those of the first embodiment. To avoid detector switching two separate detectors may be used.
Patent GB-512129-A (GB)
Title: Improvements in self-locking control wheels or handles particularly for use in gun-fire control apparatus
IPC: F41A27/06
Filed: 1937-11-27
Abstract: 512,129. Gun fire control apparatus; selflocking handles. HILLIER,- A. (Sperry Gyroscope Co., Inc.). Nov. 27, 1937, No. 4419/39. Divided out of 512,055, [Class 92 (ii)] [Also in Group XXIV] Relates to a selflocking driving whee: or handle, more particularly for use in gunfire control apparatus and of the kind in which locking means of the clutch type is disengaged upon initial movement of the wheel or handle in either direction. According tc the invention, the same clutch means serves to prevent movements of the driven mechanism in each direction of movement. In the form shown, a handle 119 drives the mechanism by means of a shaft 120 loosely keyed at x to the hub 123 of the driving wheel 128. On initial movement of the handle, the lost motion is utilized through pin 125 and cam groove 126 to disengage teeth on the wheel 128 from teeth 122 on the' fixed bearing 121, further rotation of the handle then driving the mechanism. A spring 124 serves to restore the locking engagement of the teeth when the movement of the handle is stopped. Specification 418,670 is referred to.
Patent GB-1425361-A (GB)
Title: Hydrophilic/hydrophobic image-forming method
IPC: G03C7/42
Filed: 1973-01-29
Abstract: 1425361 Photographic hydrophilic/hydrophobic image formation FUJI PHOTO FILM CO Ltd 29 Jan 1973 [28 Jan 1972] 4451/73 Heading G2C  A hydrophilic/hydrophobic image is formed from a hydrophilic cellulosic or alginate layer  which contains a silver image and overlies a hydrophobic layer by (i) treating with an etch-bleaching solution, then (ii) treating with an aqueous sol-  ution of an organic dye having at least one acidic or anionic substituent whereby the dye is physically absorbed to the hydrophilic layer, and (iii) removing the hydrophilic layer at the areas corresponding to the silver image so as to reveal areas of the hydrophobic layer. The dye may be-at least one of a direct cotton dye, basic dye, naphthol dye and acidic dye. The image formed may be projected or used as a printing plate. The etched (image) area is not dyed while the non-image area (which is not etched) absorbs the dye. Specification 1257278 is referred to.
Patent GB-494086-A (GB)
Title: Improvements in or relating to furnaces
IPC: F24H9/18
Filed: 1937-02-15
Abstract: 494,086. Hoppers. GAS LIGHT & COKE CO., HOLLINGS, H., EATON, F. J., and HUTT, A. C. Feb. 15, 1937, No. 4522. [Class 78 (i)] [Also in Group XII] A hopper 9 for feeding fuel to an inclined furnace grate is hinged at 39 so that it may be swung downwardly against the action of a counterweight 40 and filled at ground level through a door 45.
Patent GB-1293852-A (GB)
Title: Shutter apparatus for a camera
IPC: G03B9/64
Filed: 1970-01-30
Abstract: 1293852 Photographic shutters NIPPON KOGAKU KK 30 Jan 1970 [30 Jan 1969] 4702/70 Heading G2A A photographic shutter has a shutter member and a driving mechanism which comprises a spring, at least a portion of the energy imparted to the  shutter member by the spring upon actuation of the shutter being reabsorbed by and retained in the spring upon the shutter member coming to rest. In a first embodiment, Fig. 1, an opening curtain 3 and a closing curtain 3<SP>1</SP> each slide in guides 4, 5 under the control of levers 6, 6<SP>1</SP>. Lever 6 is pivotted at 7 and carries cam surfaces 16, 28. A drive spring 13 urges a transmission member 11 counter-clockwise so that a roller 14 engages cam surface 16 upon release of a key 17 from lever 6. Curtain 3 is thus accelerated. A hooked portion of a catch 22 engages a lower stepped portion of member 11, so that continued movement of lever 6 temporarily disengages roller 14 from cam 16. Roller 14 then presses against a deceleration cam portion 28 to rotate member 11 clockwise and thus absorbed the inertia energy of curtain 3 and lever 6 in spring 13. At the end of the movement, the hooked portion of catch 22 engages a recessed portion of member 11 to prevent further movement. Closing curtain 3<SP>1</SP> and lever 6<SP>1</SP> are controlled in a similar manner. The shutteris cocked by clockwise rotation of levers 35, 35<SP>1</SP> so that rollers 38, 38<SP>1</SP> engage cam surfaces 21, 21<SP>1</SP>. In a second embodiment, Fig. 7, a bell crank 50 is engaged by a projection of a curtain drive lever 41 after the lever 41 has been accelerated by spring loaded lever 43, one arm 54 of lever 50 thus engaging lever 43 during deceleration of lever 41.
Patent GB-100774-A (GB)
Title: Improvements relating to Envelopes.
Inventor: EDWARDS BERTIE CHARLES
IPC: B65D27/00
Filed: 1916-03-30
Abstract: 100,774. Edwards, B. C. March 30, 1916 Envelopes.-An envelope, made of semi-transparent paper rendered opaque by printing on the inner surface, is so printed that a design, trade mark, &c. shows on the front surface with the appearance of a watermark.
Patent GB-276240-A (GB)
Title: Improvements in stereoscopes
IPC: G02B27/22
Filed: 1927-02-21
Abstract: 276,240. Brandt, P. Feb. 21, 1927. Stereoscopes.-Comprises a collapsable stereoscope formed of a single blank having the box components formed between the base plate and the tail piece. The blank has a flap a, which serves as a base plate for the stereoscope, and flaps b, c, d serving respectively as the front top and side panels of a box structure. A continuation e of the flaps c together with the hinged flaps f form parts of a tail piece provided with slots to receive the pictures. Lenses 4. 5 may be mounted in the panel b. T-shaped lugs are formed at the free ends of the flaps and interlock with corresponding slots in the base plate a which is cut as shown to form flaps 28 - - 31 which are bent aside to receive the lugs and them replaced to retain them in position. The blank may be formed of cardboard or wood shavings.
Patent GB-683263-A (GB)
Title: Bomb or grenade for laying barbed or other wire entanglements
IPC: F41H13/00
Filed: 1951-02-28
Abstract: 683,263. Ammunition projectiles. SOC. NOUVELLE DES ETABLISSEMENTS BRANDT. Feb. 28, 1951 [March 6, 1950], No. 4899/51. Class 9(i) A bomb or grenade for laying wire entanglements comprises a central tube 1 on which is mounted a support 2a for sleeves 3, and a support 2b for wire containers 5. Each container is preferably tapered to facilitate unwinding of the wire 6 and a housing 5a surrounds the containers. One end of the wire is secured to the base of its container and the other end is fastened to an eyelet 7 on a shell 8 adapted to be fired from the sleeve 3. When the bomb hits the ground a rod 9 sliding in the tube 1 releases the safety-pins 10 of strikers 11. The spring-pressed strikers 11 then impact on detonators 12, which in turn ignite the propellent charges 13 through the relays 14 housed in the sleeves 3. A spring 16 within the tube 1 and abut ting a disc 17 is held in compression by a safety-pin 18. Before throwing the grenade, the pin 18 is removed whereupon the spring 16 bearing on a rod 19 pushes vanes 20 out of a ring 21. The vanes 20 then open outwards to act as a stabilizer for the bomb.
Patent GB-1332443-A (GB)
Title: Helicopter rotor comprising a reinforced plastics hub
IPC: B64C27/51
Filed: 1972-02-02
Abstract: 1332443 Helicopter rotors SOC NATIONALE INDUSTRIELLE AEROSPATIALE 2 Feb 1972 [15 Feb 1971] 4914/72 Heading B7W A helicopter rotor comprises a plastics hub reinforced with high-strength fibres, the hub having, to support each blade root 25, a flexible arm 2 reinforced by a longitudinal bunch of such fibres, the arm having near the hub a flattened cross-section and terminating in a substantially cylindrical terminal portion 14 to which a cylindrical sleeve 15 is secured, the sleeve serving as an inner raceway of a bearing, of which the outer raceway 19 is rigidly secured to the blade root. The hub and arms 2 are preferably of glass fibres impregnated with synthetic resin. The terminal portion 14 is thickened by the interposition of glass fibre cloths 13 and a central rigid plastics filling. Pitch variation is provided by means of rollers 17 interposed between a collar 18, retained on the sleeve 15 by a transverse shaft 16a, and the raceway 19. The raceway 19 rotates on the sleeve 15 through the agency of needle bearings 20, and centrifugal forces are transmitted from the blade to the arm by the transverse steel shaft 16a. A lever 26 is connected to the helicopter control system (not shown) for pitch variation, and each flexible arm is provided with a drag damper 27. In an alternative embodiment, Fig. 3 (not shown), the centrifugal forces are transmitted by a twistable element (34) such as a bunch of steel strips or an element of wound steel wires. In a further alternative embodiment, Fig. 5 (not shown), the twistable element (38) takes the form of a central cylindrical bunch of the fibres of the arm 2, impregnated with flexible vulcanized elastomer and sheathed with P.T.F.E. (41). The outer end of the cylinder (38) is impregnated with a strong polymerizable synthetic resin to form a connecting element for the blade 25.
Patent GB-371515-A (GB)
Title: Improvements in or relating to water heaters
IPC: F28D21/00
Filed: 1931-02-16
Abstract: 371,515. Heating water by heat of motor-vehicle engine exhaust. DAVIES, E. F. and DAVIES, G. A., 30, Devonshire Avenue, Durban, South Africa. Feb. 16, 1931, No. 4923. [Class 28 (i).] A boiler heated by the exhaust gases from the engine of a motorcar consists of a container 3 traversed by a heating coil 10 extending from an expansion chamber 6 for the exhaust gases at one end of the container. The exhaust gases from the engine manifold 9 are led into the expansion chamber through a pipe 8 provided with a valve 13. The outlet end of the heating coil projects through the top of the container and is closed by a cap 12.
Patent GB-1059141-A (GB)
Title: Separation of gas from liquid
IPC: B01D19/00
Filed: 1964-02-05
Abstract: 1,059,141. Centrifugal separators. TEKNIKA, Inc. Feb. 5, 1964 [Feb. 21, 1963], No. 5004/64. Heading B2P. Entrained or occluded gas is removed from a liquid by a continuous method which comprises continuously delivering the charged liquid into a treating space where it is centrifuged, the foam collecting in the inner part of the treating space being broken by means of gas-borne mechanical wave energy provided near the axis of the centrifuging motion. In the apparatus shown in Fig. 1, liquid collecting in the outer region 40 of rotating tub 10 is collected by scoops 24, 25 and removed through output pipe 31. The mechanical wave energy is generated by 35. In the embodiment of Fig. 4 (not shown), scoops (24) (25) are carried by substantially vertical pipes (22.1), (23.1). In the embodiment of Figs. 5 and 6 (not shown), the liquid-collecting device comprises a pair of annular discs (51), (52) joined by cylindrical portion (53). Liquid guided between the discs by vanes (58) is collected by output pipes (54), (55). Vanes (58) may be replaced by scoops (61) (Fig. 7, not shown) or alternatively the outer edges of the discs may be serrated to present scoop openings (62) to the liquid (Fig. 9, not shown). In the embodiment of Figs. 10 and 11 (not shown), cross pipes (71), (72) are permanently fixed to the side-walls of the tub. Liquid is collected through apertures (75), (76) at the outer ends of the cross pipes by means of pump (86), and passes to the axially disposed vertical output pipe. In the embodiment of Fig. 12 (not shown) the tub is enclosed in a housing and the region inside the housing may be operated under partial vacuum. In the apparatus shown in Fig. 13, a device for maintaining constant liquid level in the tub comprises input control lever 119 fitted with liquid sensor 120 and output control lever 134 fitted with liquid sensor 136, the levers being pivotally mounted to operate input control switch 116 and output control switch 133 respectively. Alternatively, the input and output valves 115 and 132 are controlled by means sensitive to the weight of the tub and its contents. Examples refer to treatment of (1) polyvinylidene chloride latex paper coating containing suspended clay solids (2) milk (3) coffee liquor containing suspended coffee grounds (4) polyvinylchloride latex (5) "black liquor" obtained during digestion of wood pulp.
Patent GB-1078902-A (GB)
Title: Apparatus for dispensing liquid adhesive
IPC: B05C1/08
Filed: 1966-02-04
Abstract: 1,078,902. Coating apparatus. D. A. CAULFORD and J. R. PHIN. Feb. 4, 1966 [Jan. 17, 1966], No. 5031/66. Heading B2L. In dispensing liquid adhesive on to labels, applicator roll 76 is rotated through shaft 78 and causes spiral threaded member 64 to rotate in sleeve 58 so as to raise liquid adhesive from a receptacle (12) and expel it from the top of member 64 to flow down the applicator roll 76. The thickness of the liquid adhesive is determined by the relative position of the doctor roll 96 adjustable on eccentric shaft ends 104, 106, after which the adhesive is carried round by the roll 76 and applied to labels (80), excess adhesive flowing back to receptacle (12). At desired intervals crank arm (130) (Fig. 3, not shown) is actuated to move fingers (126) (Fig. 4, not shown) into slits 84 in applicator roll 76 to break any glue stringers formed, whilst fingers (126), in their normal position prevent the labels (80) (Fig. 4 not shown) from adhering to the applicator roll 76.
Patent GB-525214-A (GB)
Title: Improvements in or relating to fluid circulating systems, such as lubricating systems
IPC: F16N39/02
Filed: 1939-02-16
Abstract: 525,214. Plug valves. ANDALE CO. Feb. 16 1939, No. 5132. Convention date, Feb. 17, 1938, Nos. 5132. [Class 135] [Also in Groups XIII and XXXIV] A lubricating system for the bearings 13, Fig. 1, of a turbine &c. 12 includes an oil tank 14 from which oil is forced by a pump 15 through a' pipe 16 to one end of a hand-operated plug valve 17 by which oil is directed through pipes 33, 35, to either, or simultaneously to both, of the coolers 18, 19 each of which is provided with an air vent 31 and a drain 32, the oil returning to the opposite end of the valve through pipes 34, 36 and thence passing through a pipe 20 to the bearings. The coolers are of the kind comprising tubes extending between end headers, the upper of which is provided with cooling water inlet and outlet pipes 27, 30 respectively, and enclosed by a casing through which the oil is circulated. The valve, Figs. 3, 4, comprises vertically spaced discs 52, 53, with separating partitions 55, 56, the former with an extension 57, the whole forming a conical plug. In the upper part of the valve, an inlet 58 is connected to the supply, and outlets 59, 60 to connections 37, 38 leading to the coolers. In the lower part of the valve, a main outlet port 61 is connected to pipe 20 extending to the bearings, and a pair of ports 62, 63 are connected to the discharge pipes from the coolers. In a modification, Fig. 8, not shown, the coolers are submerged in an oil bath, which may constitute the oil supply for the system. The valve, Fig. 9, has an arrangement of ports similar to that of Figs. 3, 4, but is inverted, and a spring 88 is provided to keep the valve pressed into its seating. The spindle 90 carries a toothed segment 91 rotated by a pinion 92 mounted on a hand-actuated shaft 93, which is extended outside the casing of the apparatus and may carry an indicator. Byepass ports such as 96 may be provided for drainage and venting of the apparatus.
Patent GB-856688-A (GB)
Title: Flushing valve
IPC: E03D3/04
Filed: 1958-02-17
Abstract: 856,688. Valves. ENGSTROM, O. L. Feb. 17, 1958 [March 20, 1957], No. 5137/58. Class 135. A flushing valve comprises a housing having a water inlet 16 and a water outlet 15 which communicates with one end of a first conduit member 21 within the housing, a second conduit member 24 within the housing and surrounding the first conduit member, the water inlet being in communication with the annular space between the first and second conduit members, a valve seat defined by the end of the first conduit member remote from the outlet 15, a valve cap member 28 freely movable within the housing and adapted to seat against said seat to seal off the first conduit member 21, the valve cap having a peripheral sleeve portion 31 arranged in closely spaced relation with respect to the outer wall of the second conduit member 24, and a pilot valve 52 adapted temporarily to release the pressure from a chamber above the valve cap 28 to allow the cap to move away from its seat for flushing action through the valve. In the embodiment shown, the valve cap 28 seats on both the conduit members ; the pilot valve is actuated by a manual push-button 59; and an adjustable stop screw 67 determines the lift and closing time of the valve. A small opening 32 in the skirt 31 releases any air bubbles into the chamber above the cap.
Patent GB-778566-A (GB)
Title: Improvements in and relating to methods of soldering fine wire
Inventor: HOOD ROY KENNETH
IPC: B23K1/20
Filed: 1956-02-20
Abstract: 778,566. Soldering. MULLARD RADIO VALVE CO., Ltd. Feb. 20, 1956, No. 5158/56. Class 83 (4). [Also in Group XXXVI] In soldering to a surface 3, a wire 1 having a maximum cross dimension of 10 thousandths of an inch and with a bead 4 of solder adhering to the wire at a point remote from an end 5 of the wire, the end 5 is placed on the surface 3, the bead is heated and flux is sprayed on to the bead which is made free to travel along the wire to provide the soldered joint. A nickel wire of 2 thousandths of an inch diameter is placed in contact with a germanium crystal 2, the bead 4 on the wire is heated by a jet of heated reducing gas mixture (hydrogen 1, nitrogen 9) issuing from an aperture 6 and a liquid flux carried by an air jet is sprayed from above from an atomizer. The bead travels down under the combined force of gravity and the pressure of the spray and on cooling forms a soldered joint. The action of gravity alone or the spray pressure alone may move the bead along the wire.