baber/WOPTO huggingface dataset:
Patent GB-1220079-A (GB)
Title: Improvements relating to buckets for earth-moving and like machines
Inventor: DUDLEY EDWARD THOMAS
IPC: E02F3/40
Filed: 1967-12-20
Abstract: 1,220,079. Excavator buckets. RUBERY OWEN & CO. Ltd. 20 March, 1969 [20 Dec., 1967], No. 57806/67. Heading E1F. In a multi-purpose two part excavator bucket the forward part 12 of the bucket has a bottom 13 of which the upper surface 17 is substantially flat and, when the part 12 bears against the rear part 11 of the bucket, extends forwardly from said rear part 11 at a small obtuse angle to the immediately adjacent surface of said rear part. The bottom may be formed by a single flat plate of heavy gauge or by a flat upper plate 17 and a lower, stiffener plate 18 of shallow, asymmetrical wedge outline with webs 19 extending between and welded to the plates 17, 18. The form of the plate 18 is such that the front part of the plate will be parallel to a surface when material is being picked up from said surface by the bucket.
Patent GB-1174789-A (GB)
Title: Preparation of Monoglyceride Phosphoric Acid and Salts Thereof
IPC: C07F9/09
Filed: 1966-12-23
Abstract: 1,174,789. Monoglyceride phosphoric acids and salts thereof. EASTMAN KODAK CO. 23 Dec., 1966 [29 Dec., 1965], No. 57827/66. Heading C2C. A compound of the formula wherein R is an aliphatic or aromatic hydrocarbyl radical and R<SP>1</SP> and R<SP>11</SP> are hydrogen is obtained by reacting in solution a glycidyl ester of an aliphatic or aromatic acid having the structure with anhydrous phosphoric, pyrophosphoric or polyphosphoric acid. R may be an aromatic or aliphatic radical and preferably contains 6 to 22 carbon atoms. The product may be reacted with a univalent metal hydroxide to form a salt compound in which at least one of R<SP>1</SP> and R<SP>11</SP> is a univalent metal, e.g. an alkali metal, and an aqueous solution of such salt may be further reacted with a water-soluble salt of a polyvalent metal, e.g. calcium, to form a salt in which R<SP>1</SP> and R<SP>11</SP> together represent a polyvalent metal. The solvent used is preferably an aliphatic hydrocarbon, e.g. petroleum ether, ligroin or hexane and the reaction is desirably effected at the boiling point of the solvent (provided this does not exceed about 100‹ C.) while refluxing and stirring. Examples are given for preparing the free acid in which R is the radical derived from stearic acid and for the production of mono- and di-sodium salts of various of the acids and for the calcium and ferric salts of the acid in which RCOO is a mixed palmitic-stearic acid radical. The acids are useful to prevent rancidification of edible oils and fats, the alkali metal salts as hydrophilic emulsifying agents in foods and the calcium salts as oil-soluble emulsifying agents.
Patent GB-1458984-A (GB)
Title: Circuit arrangement for producing a sawtooth current through a line deflection coil in an image display apparatus
IPC: H04N3/16
Filed: 1973-12-14
Abstract: 1458984 DC-DC conversion PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Dec 1973 [19 Dec 1972] 58058/73 Heading H2F [Also in Division H3] In aline time-base and D.C. supply circuit comprising a deflection coil Ly, a trace capacitor C1, a retrace tuning capacitor C2, a switch comprising diode D1 in parallel with a control switch TR connected in series with a diode D2 for coupling the coil to the trace capacitor during the sweep, an inductor L<SP>1</SP> is connected to the deflection circuit via a diode D3 and is arranged to charge from a supply when the switch is on and to discharge via the diode D3 when the switch is off so as to restore energy losses in the deflection circuit. During the sweep, deflection coil current flows through D1 and then reverses, and flows through D2 and Tr. At the same time the inductor L<SP>1</SP> is charged from VB via Tr. At the end of the sweep Tr goes off allowing resonant reversal of the sweep current to take place and energy in the inductor to discharge into the trace capacitor C1. Stabilization may be effected by controlling the conduction period of Tr from the output circuit (as in a prior circuit, Fig. 1, not shown). In Fig. 5 (not shown) the circuit is rearranged so that the supply does not float and in Fig. 6 (not shown) the supply is constituted by the charge in capacitor (CB), the capacitor being charged via an inductor (LB). Capacitor C1 may effect S shaping. An EHT or other supply winding may be coupled to the deflection winding or the inductor.
Patent GB-1446630-A (GB)
Title: Method and apparatus for determining the life span of short  lived products
IPC: G01R33/30
Filed: 1973-12-18
Abstract: 1446630 Mixing in conduits KERNFORSCHUNG mbH GES FUER 18 Dec 1973 [22 Dec 1972] 58506/73 Heading B1C [Also in Division Gl] To determine the life-time of a short lived product of a reaction between two liquids, the product being such that it can be detected by an electron spin resonance measurement, the two liquids are mixed in a flow cell upstream of an ESR detector; the distance upstream is varied until the product is no longer detected, and by dividing the distance by the flow velocity the life-time is found. Fig. 1 shows the flow cell 1 which has a restricted portion 2 where the ESR is detected. The fluids exhaust through end 9 for collection. A mixing insert 3, Fig. 2, which in use is held slidably in the flow cell 1 by nut 7 co-operating with threaded end 8 of the cell, has two inlets 10, 11 for the reagents. One reagent emerges from the tube 4 and flows downwards to mix with the other reagent as it emerges from ball 12 at the end of tube 5. Calibrations 13 on tube. 4 allow the distance of the insert-within the flow cell to be read directly.
Patent GB-1447367-A (GB)
Title: Fluid heaters
IPC: F24H1/43
Filed: 1972-12-20
Abstract: 1447367 Water heater; steam generator STONE-PLATT CRAWLEY Ltd 30 Nov 1973 [20 Dec 1972] 58700/72 Heading F4A A water heater or steam generator comprises a burner 27 disposed above and supported by a heat exchanger assembly 7, and a casing 39 housing the heat exchanger assembly. The heat exchanger assembly consists of either four nesting coil packs or a battery of straight vertical tubes connected to top and bottom annular header tanks. The heat exchanger assembly may be exposed, see left hand side of Fig. 1, by removing wall sections 38 and sliding the cylindrical casing 39 from its operative position, in which the casing is located against upper and lower seals 41, to its lowered position, in which the casing rests against base 12. To expose a greater length of coil pack, the casing can be made into two telescoping sections. In operation air is drawn by a fan 5 through an annular grating 35 having filter material 36 into a collectbox 3. The air is then passed to the burner via chamber 14, annulus 37 and transfer ducts 24. In a further embodiment the transfer ducts are formed from an initially circular-sectioned tube which is progressively flattened as it is passed from the outside to the inside wall of the flue. The exhaust gases pass through the heat exchanger assembly to the flue exit duct 1.
Patent GB-1361397-A (GB)
Title: Cover plate assembly
IPC: F16J13/08
Filed: 1970-12-11
Abstract: 1361397 Pressure resisting closures GENERAL DESCALING CO Ltd 13 March 1972 [11 Dec 1970] 58974/71 Heading F2P A tank cover-plate 3 is held in a neck 2 by peripherally spaced balls 4 in a cage 5 abutting inclined seating surfaces 10, 11 of the coverplate and neck respectively, whereby movement of the cage causes the balls to move to release the cover-plate. The cage 5 is moved upwardly so that the balls 4 traverse the inclined surfaces 10, 11 to enter a recess 12 in the cover-plate, the cage also pushing upwardly a horizontal part of an L-section seal 13, held in the cover-plate and sealing against the neck 2, to relieve pressure in the tank. The cage 5 has axially elongated slots so that the seal 13 is pushed upwardly before the balls are moved. The cover-plate 3 may be removable, hinged or pivoted about a vertical shaft. In one embodiment the cover-plate 3 is supported by two diametrically opposed pins, one pin 21 shorter than the other pin 20, which is upwardly biased by a spring 23, so that upon release, the cover-plate moves until the shorter pin 21 clears its corresponding socket 22 in the neck, thus allowing the cover-plate to be pivoted about pin 20. In another embodiment, Fig. 7, the ball cage is actuated by diametrically opposed cams 41 on the ends of arms 42, 42<SP>1</SP> connected by a central strut 43. With the coverplate in the closed position, the arms 42, 42<SP>1</SP> and strut 43 lie in a horizontal plane, and the raising of the members 42, 42<SP>1</SP>, 43 to the position as shown rotates the cams 41 to release the cover-plate. A stepped rod 46, 46<SP>1</SP>, 60 is also rotated from a horizontal to a vertical position, and movement of a lever 44 depresses the rod into a recess 54 and then lifts the cover-plate by means of the arms 42, 42<SP>1</SP> to subsequently pivot about the rod. Alternatively, the cams 41 may be manually operated. The cover-plate may comprise an annular flange with a plate forming the cover, and having a separate sealing plate supported therefrom, the chamber between the cover and the sealing plate being pressurized.
Patent GB-1361646-A (GB)
Title: Transistorized power supplies
IPC: H03K3/02
Filed: 1971-12-20
Abstract: 1361646 Inverters NORTH ELECTRIC CO 20 Dec 1971 [23 Dec 1970] 59079/71 Heading H2F [Also in Division H3] An inverter for supplying A.C. across terminals 22, 24 from D.C. across 21, 23 comprises 2 switching transistors Q1, Q2 having their baseemitter circuits coupled via transformer T1 with current pulse generators A, B comprising transistors Q3, Q4, respectively, with bases connected with outputs of a signal generator 26 which controls the cyclic operation, and a winding N7 of transformer T1 in the A.C. branch for supplying a regenerative current to the transistor which is forward biased, and further comprises means including transistor Q5 and windings W4, W5 for turning the transistors off. In operation, with transistors Q1-Q4 all off, a gating signal is applied via 29 to the base of Q4 rendering this conductive to enable a current to flow from the terminal VB + via winding N1 of the transformer T1 and transistor Q4 to earth. This current will induce a current in both secondaries N3, N6 which owing to their direction of winding will cause charging of capacitor C3 and forward biasing of Q1 and reversebiasing of Q2. As transistor Q1 turns on, current flows between the terminals 22, 24 in the direction of arrow A and through the action of N7, causes a reinforcing current to flow in coil N3 to drive transistor Q1 to saturation. A pulse is then emitted by generator 26 over line 30 to the base of another transistor Q5 to render this conductive to short out further primary windings N4, N5 of transformer T1. This shortcircuiting is reflected in winding N3 which then permits capacitor C3 to discharge through transistor Q1 to turn it off. The generator 26 then issues a third pulse to turn on transistor Q3 and the cycle is repeated to cause the current to flow against the arrow A in the A.C. branch.
Patent GB-1400229-A (GB)
Title: Aluminum oxide fibres and their production
IPC: C04B35/622
Filed: 1972-12-21
Abstract: 1400229 Al 2 O 3  fibres containing SiO 2  BAYER AG 21 Dec 1972 [22 Dec 1971] 59087/72 Headings C1A and C1J [Also in Division C3] Al 2 O 3  fibres containing 1-20% by wt. SiO 2  (as such or in combined form), based on total oxides plus carbon, and 0À1-4% by weight C, are produced by spinning a solution containing a neutral or basic Al salt of a monobasic C 1-5  carboxylic acid, a hydrolysed silicic acid ester or condensation product thereof or a hydrolysed organoalkoxysilane, and polyethylene oxide having a degree of polymerization of above 2000, and heating the fibres at up to 1800‹ C. The fibres may also contain up to 10% P 2 O 5  and/or B 2 O 3  and up to 5% MgO (based on total oxides plus carbon) by adding, e.g. MgO, MgCO 3 , H 3 PO 4 , (NH 4 ) 2 HPO 4 , B 2 O 3  or H 3 BO 3  to the solution. The Al salt may be the formate, acetate or propionate. The Si compound may be Si(OR) 4  where R is Me, Et, Pr or Bu, or partial hydrolysis products thereof, i.e. alkoxypolysiloxanes; or R<SP>1</SP> m Si(OR) 4-m  where m is 1-3 and R<SP>1</SP> is lower aliphatic hydrocarbyl, e.g. Me(MeO) 3 Si, or Me(EtO) 3 Si. It may be hydrolysed before or after mixing with the Al salt. The spinning process may be wet or dry, preferably dry spinning into a co-current of air. The fibres may be heated solely in N 2 , or in air up to 1100‹ C. and then in N 2 . Amorphous Al 2 O 3  is produced at 400-950‹ C., γ-Al 2 O 3  at 950- 1150‹ C., γ-Al 2 O 3  and mullite, with some #- Al 2 O 3 , at 1200-1400‹ C., and α-Al 2 O 3  and mullite at above 1400‹ C. Heating schedules are given. The spun filaments may be cut into fibres before or after heating. The product fibres are used to reinforce plastics, metals, glass and ceramic materials.  Reference has been directed by the Comptroller to Specification 1,313,677.
Patent GB-1268824-A (GB)
Title: Production of films having excellent adhesiveness to gelatins
IPC: G03C1/93
Filed: 1969-12-05
Abstract: 1,268,824. Coated films. MITSUBISHI PETROCHEMICAL CO. Ltd. 5 Dec., 1969 [10 Dec., 1968], No. 59483/69. Heading B2E. [Also in Division G2] A film adhesive to gelatin is obtained by contacting a film having a surface of a fine filler-blended polyolefin with a solution of acrylic ester polymer in a positive solvent for the polyolefin, heating the surface to at least 50 while maintaining contact with the solution and, removing the solvent resin so as to form a thin layer of the polymer on the surface. The acrylic ester polymer may be homo-polymer of an alkyl ester of acrylic acid or copolymers thereof with a small amount of a comonomer such as vinyl acetate, vinyl chloride, acrylic acid or its salts, acrylonitrile, styrene, and methacrylic ester. Small amounts of other polymers may be present. Typical solvents are toluene, xylene, cyclohexane and alpha-chloronaphthalene. The heat treatment may be applied by immersing the article in a solution of the polymer at above 50C. The polyolefin may be crystalline polypropylene, polyethylene or poly(ethylene-propylene). Numerous suitable fillers are specified. A gelatin layer may be applied over the acrylic polymer layer and it may contain a hardening agent such as formalin, a photosensitive agent such as silver halide or a filler.
Patent GB-1445179-A (GB)
Title: Method and apparatus for crimping synthetic thermoplastic fibers
IPC: D06M101/16
Filed: 1973-12-28
Abstract: 1445179 Crimping fibres PHILLIPS PETROLEUM CO 28 Dec 1973 [29 Dec 1972] 60020/73 Heading D1F A method of crimping synthetic thermoplastic fibres, particularly polyolefin fibres. comprises feeding the fibre in tow or yarn form to a crimping chamber 12, advancing the crimped fibre through the chamber 12 and withdrawing the crimped fibre from the downstream end thereof, during passage through the chamber 12 the crimped fibre is exposed to successive zones of steam pressure viz a first zone in which steam pressure progressively increases to a pressure in the range 5-35 psig a second zone of constant higher steam pressure in the range 5-35 psig, and a third zone of progressively decreasing steam pressure. The crimping chamber 12 is preferably a stuffer-box chamber defined between vertical side walls 18 and upper and lower blades 22, 24 which are relatively movable to vary the height of chamber 12. The steam is introduced into the chamber 12 via longitudinal conduits 30, transverse conduits 32 and channel 34. The steam is introduced at a position adjacent the upstream end of chamber 12 but spaced therefrom. Steam is extracted from the chamber 12 downstream of the inlet channels 34 via conduits 36 communicating with a channel 38 incorporating a filtering medium 40 to prevent ingress of fibres. The fibre introduced into the chamber 12 acts as a partial sealant although allowing some escape of steam and therefore the first steam pressure zone is produced upstream of the channels 34. The second steam pressure zone is in the region of the channels 34 and the pressure may be kept constant in response to the pressure measured in the zone by pressure channels 48. The third steam pressure zone is produced downstream of the channels 34 by virtue of the extraction conduits 36 and the partial sealing effect of the mass of crimped fibre. In a preferred embodiment, a tow of polypropylene filaments is drawn, treated with a finish composition, crimped, stapled and baled. The draw ratio is in the range 1.5-5, with a drawn denier per filament of 1.5-80. A preferred composition of finishing agent includes distearyl dimethyl ammonium chloride as a surface active agent, capped polyethoxylated straight chain alcohol as a wetting agent, sodium borate decahydrate as a buffer and sodium nitrite as a corrosion inhibitor.
Patent GB-1319669-A (GB)
Title: Modular distributor system for bulk material
IPC: B65G37/00
Filed: 1970-12-29
Abstract: 1319669 Vibratory conveyers V GREGOR 29 Dec 1970 [16 Nov 1970] 61506/70 Heading B8A Potato chips are distributed to packaging points 20, 21, 22, 23 from a source 24 by independent similar vibratory conveyer modules 25, 26, 27 terminated by an end module 28. Fig. 5 shows the junction of trays 29, 30 of modules 25, 26 (the other junctions being similar). The tray 30 slopes upward from its upstream to its downstream end forming a well 49 providing a source of supply of chips for point 21 controlled by a gate 36 with a sliding closure member 37 actuated by a cylinder 76. A sensor 42 comprising a photo-cell 75 senses the level in the well 49 and when this falls passes a signal to a control 45 of the upstream module 29 to actuate its vibrator 36 to cause chips to be fed forward. Sensor 41 on module 25 is connected to control 48 of the source 24.
Patent GB-1282728-A (GB)
Title: Crystalline block copolymers consisting of propylene units and vinyl monomer units and a process of producing the same
Inventor: AMERIK VALENTINA VASILIEVNA
IPC: C08F297/00
Filed: 1969-12-23
Abstract: 1282728 Propylene-vinyl cycloalkane block copolymers INSTITUT NEFTEKHIMICHESKOGO SINTEZA IMENI AV TOPCHIEVA AKADEMII NAUK SSSR 23 Dec 1969 [27 Dec 1968] 62723/69 Heading C3P Crystalline block copolymers of 70 to 99À9 wtÀ per cent of propylene units and correspondingly 30 to 0À1 wt per cent of vinyl cycloalkane units are obtained by sequential polymerization in the presence of a Zeigler-Natta catalyst. In examples propylene-vinyl cyclohexane block copolymers are obtained by polymerization in the presence of 3TiCl 3 .AlCl 3  or TiCl 3  and Al(C 2 H 5 ) 2 Cl, in propane as solvent.
Patent GB-1253930-A (GB)
Title: Position indicating of the movable member of a hydraulic system
IPC: F15B15/28
Filed: 1969-12-29
Abstract: 1,253,930. Hydraulic device for indicating the position of an hydraulic actuator. NORSK HYDRO VERKSTEDER A. S. Dec. 29, 1969 [Dec.30, 1968], No.63083/69. Heading F1P. A device for connecting in series with a double-acting piston and cylinder unit 4, 56 to indicate its position, comprises a cylinder 1 containing a non-rotatable piston 3 which moves in dependence upon the quantity of liquid supplied to or exhausted from the unit 4, 56, thereby to cause rotation of a helical spindle 2 coupled to drive an external indicator pointer 20. Rotation of the piston 3 is prevented by a hollow tube 26 extending between cylinder ends 36, 38 and providing through ports 40, entry and exit to one end of the cylinder. To allow automatic resynchronization of the pistons 3, 56, oppositely opening non-return valves (12) are disposed in passages through the piston 3. A magnetic port (60) may be mounted on the spindle whereby the pointer 20 is driven by magnetic attraction, Fig.4 (not shown).
Patent GB-2001544-A (GB)
Title: Band filter apparatus
IPC: B01D29/09
Filed: 1978-07-25
Abstract: Band filter apparatus, particularly for the treatment of sludgy liquids, has an upper filter chamber (6), a lower outlet chamber (15) and an endless band (16) running between the chambers. The filter chamber (6) contains a vertically movable plunger (1) which has a flexible membrane (2) beneath it. The plunger (1) can be internally pressurised and in the operating cycle this pressurisation is effected simultaneously with lowering of the plunger into pressing contact with the filter cake. The liquid to be filtered may be fed in through a tube (4) which carries the plunger (1) and the top of the plunger may have a sloping surface (3) to distribute the incoming matter evenly around the chamber. <IMAGE>
Patent GB-2002904-A (GB)
Title: Flowmeter
IPC: F15C1/22
Filed: 1978-08-17
Abstract: The invention relates to a flow meter of a fluidic oscillator type which has its principal use when measuring the ventilation of a moving human being or animal. The flow meter has an inlet, two outlet ducts and two control inlets connected by a circular control duct, one on each side of the connection between the inlet and outlet ducts. All the ducts are co-planar and the inlet is wedge shaped. The oscillations caused by the flow through the meter are detected by an ultrasonic transmitter and receiver placed at the endpoints of the control duct. The design of the flow meter enables it to be made small, light and portable and also ensures that the pressure drop in it is minimal. <IMAGE>
Patent GB-2003706-A (GB)
Title: Audio signal translation for loudspeaker and headphone sound reproduction
IPC: H04S1/00
Filed: 1978-08-29
Abstract: A signal translator includes right- and left-channel translating networks (11, 12), each being constructed to have a transfer function 1 /(A + B), where A is the transfer function of a direct acoustic path between a right-channel sound source and a listener's right ear and B is the transfer function of an acoustic crosstalk path between a left-channel sound source and the listener's right ear, the listener's head being positioned equidistant from the two sound sources. Through the right- and left-channel networks (11, 12), the right and left channel components of spatially correlated audio signals undergo transformation of 1/(A + B). When binaural signals are applied to the translating networks, the translated output signals are applied to a pair of loudspeakers in a listening room in which the acoustic direct and crosstalk paths transform the signals so that the impinging sound at the listener's ears is a distortion free audio signal. The input signals may be a pair of stereophonic signals, which after translation through the respective translating networks, are applied to a stereophonic headphone having a transfer function (A + B) to give the listener the same psychoacoustic effect as that obtained from the reproduction of the stereophonic signals with loudspeakers. <IMAGE>
Patent GB-2030364-A (GB)
Title: Fluid Pressure Switch
IPC: H01H35/34
Filed: 1978-09-13
Abstract: A fluid pressure switch for testing vehicle tyre pressures comprises a casing 1 in cylinder shape having threaded portions 10, 11 formed therein for the engagement and attachment with an insulating cap 7 and the valve stem 23, a diaphragm 2 for sensing the tyre pressure, a spring loaded disc 4 having a central stem 5 cooperating with two contacts 8, 9 in a chamber of the cap which are in touch with each other to give a warning signal if the pressure is below normal and will separate if the pressure is normal. <IMAGE>