baber/WOPTO huggingface dataset:
Patent GB-1167358-A (GB)
Title: Air Filter Assemblies for Internal Combustion Engines
Inventor: BUCKMAN KENNETH ERNEST
IPC: F02M35/024
Filed: 1966-11-17
Abstract: 1,167,358. Air filter for I.C. engines. GENERAL MOTORS Ltd. 26 Oct., 1967 [17 Nov., 1966], No. 51559/66. Heading B1T. The filter element 15 is sealingly clamped at both ends between shoulders 12, 14 internal to corresponding plastic shells 3, 2 adapted to be secured together by a central fastener member 4: upper shell 2 has a peripheral skirt 20 entering the wall of shell 3 in a sliding fit: when the two shells 2, 3 are interengaged, a flange 21 engages the upper edge 22 of the wall of shell 3. As described, radial ribs 23 are provided; when bolt 4 is tightened, shoulder 14 acts as a fulcrum forcing skirt 20 into tight engagement with shell 3. Bolt 4 engages a bail 7 fixed to the intake tube 8 of an I.C. engine; 18 is an air inlet, and 19 a subsidiary intake connectable to the engine crankcase to extract fumes therefrom; 24 are radial ribs, and 16, 17 are gaskets.
Patent GB-517128-A (GB)
Abstract: 517,128. Thermometers. NEGRETTI, H. N., NEGRETTI, P. E., and IBBOTT, H. W. July 19, 1938, No. 21369. [Class 97 (iii)] In a differential expansion thermometer the expansion or contraction of a member such as a bulb or stem actuates through a rocking lever the magnifying mechanism while at the same time the connections between the bulb and the rocking lever do not contract or expand or are so compensated as to have no effect upon the instrument. The bulb 1 is connected to the rocking lever 5 by a bar 2 of " Invar " steel with flexible couplings 3, 4 and a bar 7 with flexible coupling 6 so that expansion &c. of the bulb 1 will rock the lever 5 which communicates a rocking movement to a lever 9 adapted to operate the magnifying mechanism 8. The rocking levers 5, 4 are connected by a flexible coupling 10 to prevent bodily movement of the lever 5 from affecting the lever 9. The latter lever is pivoted to a bush 23 by two strips 21, 22 arranged at right angles to one another. Other forms are described. Specifications 517,162, [Group XXIV], is referred to.
Patent GB-1284221-A (GB)
Title: Multi-orifice nozzle
Inventor: GROOM FREDERICK CHARLES
IPC: B05B1/14
Filed: 1968-11-05
Abstract: 1284221 Spray nozzle W R GRACE & CO 17 Nov 1969 [5 Nov 1968] 52409/68 Heading B2F A nozzle for applying liquid sealing material to a closure member 10 before it is fitted to a container comprises a vertically disposed tube 1 closed at its lower end 2, the latter being drilled to provide six passages such as 3, 4 which are equi-spaced circumferentially and set at an angle to the tube axis. The inner ends of the passages are simultaneously openable and closable by vertical movement of a needle 5, this movement being controlled by a timing mechanism.
Patent GB-1495620-A (GB)
Title: Method and apparatus for determining the amount of ultrafiltration during dialysis
IPC: B01D61/30
Filed: 1975-12-22
Abstract: 1495620 Measuring amount of ultrafiltration during dialysis BAXTER TRAVENOL LABORATORIES INC 22 Dec 1975 [14 Feb 1975] 52434/75 Heading B1X A dialysis device includes a membrane dialyzer and a solution-conduit for passing dialysis solution through a dialyzer, and comprises means for supplying precisely positively controlled volumes of fresh dialysis solution to, and means for withdrawing precisely positively controlled volumes of dialysis solution from, at least a portion of said solution conduit and said dialyzer so as positively to control the input and output of dialysis solution to and from said portion of the solution and the connected dialyzer; and means for measuring the volume of dialysis solution in said portion of the solution-conduit and the connected dialyzer, this measured volume being less than the entire volume of dialysis solution in the dialysis device, whereby changes in said volume not attributable to changes in the dialysis solution input and output indicate the amount of ultra-filtration during dialysis. As shown, dialysis fluid from reservoir 10 is pumped by reciprocating piston 18 to container 26; at the same time an equal amount is pumped by the opposite face of piston 18 from container 26 to drain 40. Dialysis fluid circulates from container 26 through dialyser 32 and back to container 26. Means are provided for reading the liquid level in container 26; since equal volumes are pumped in and out, any change in liquid level is due to ultrafiltration in dialyser 32.
Patent GB-1369485-A (GB)
Title: Preparation and use in olefin polymerisation of silica-based catalysts
IPC: B01J23/26
Filed: 1971-11-11
Abstract: 1369485 Olefin polymerisation catalyst PHILLIPS PETROLEUM CO 11 Nov 1971 [12 Nov 1970] 52473/71 Heading B1E [Also in Division C3] Silica-based titanium- and hexavalent chromium-containing olefin polymerisation catalyst is prepared by a method which comprises forming a hydrogel by addition of aqueous alkali metal silicate solution to aqueous mineral acid solution, aging the hydrogel, washing the aged hydrogel to remove alkali metal, forming a xerogel by removal of water from the hydrogel, and calcining the xerogel, titanium compound being incorporated in the acid solution prior to addition thereto of the silicate solution and chromium (VI) oxide or a compound convertible thereto upon calcination being incorporated prior to calcining the xerogel, for example by inclusion in the acid solution prior to addition thereto of the silicate solution and/or by solution impregnation of the xerogel. The aged hydrogel may be washed, preferably to an alkali metal content of less than 0.1 weight per cent, with material selected from water, dilute acid solutions and ammonium salt solutions; specified ammonium salts are ammonium nitrate and ammoinum salts of organic acids. The water may be removed from the hydrogel either by washing with a watersoluble oxygen-containing organic liquid or, preferably, by azeotropic distillation employing such an organic liquid; specified organic liquids are n-propyl alcohol, sec-butyl alcohol, methyl isobutylketone, butyraldehyde, diisobutyl ether, ethyl acetate and isopropyl acetate. The xerogel may be calcined at a temperature of from 900 to 1800‹F. Specified titanium compounds are alkyl titanates, halides (trichloride, tetrachloride) and the nitrate, sulphate and oxalate; specified chromium compounds convertible to chromium (VI) oxide upon calcination are the chloride, nitrate, sulphate, acetate and acetylacetonate. The catalyst may contain from 1 to 10 weight per cent (elemental basis) of titanium in the form of titanium dioxide and up to 50, preferably from 1 to 10, weight per cent (elemental basis) of chromium in the form of chromium oxide. As exemplified, catalysts are prepared by a procedure wherein a xerogel prepared either from sodium silicate (water glass) solution, sulphuric acid and titanium tetrachloride is composited with a solution of chromium acetylacetonate in ethyl acetate and thereafter calcined at 1600‹F (Example 2) or from sodium silicate solution, sulphuric acid, titanium tetrachloride and chromium nitrate is composited with a solution of chromium acetylacetonate in ethyl acetate and thereafter calcined at 1600‹F (Ex. 3); a sulphuric acid, titanium tetrachloride and chromium acetylacetoate in ethyl acetate and thereafter calcined at 1600‹F (Example 3); a comparison catalyst is prepared by compositing commercial silica-based chromium-containing catalyst with tetraisopropyl titanate (Example 4).
Patent GB-1169749-A (GB)
Title: Formwork, for Forming Ducts or Cells in Concrete
IPC: E04G15/06
Filed: 1966-11-23
Abstract: 1,169,749. Moulding cores. S.A.T.U.J.O. 23 Nov., 1966 [17 March, 1966], No. 52513/66. Heading B5A. [Also in Division E1] A core for making a hole in concrete comprises two parts 1a, 1b adapted to be separated into operative position by two inflatable tubes 2. The parts 1a, 1b are right angular and drawn together by springs 9 on bolts 8 when the tubes are deflated.
Patent GB-1195988-A (GB)
Title: Production of Unsubstituted Aromatics of High Purity.
IPC: C07C7/163
Filed: 1967-11-20
Abstract: 1,195,988. Hydrodealkylation. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 Nov., 1967 [21 Nov., 1966], No. 52606/67. Heading C5E. In a process for hydrodealkylation of alkylaromatics, particularly toluene, at elevated temperature and pressure, the reaction product is hydrorefined without previous separation into gas and liquid phases, said hydrorefining being conducted under the dealkylation pressure, at a temperature of 50-350‹ C., a space velocity of 2-10 kg/litre of catalyst/hour, and over a catalyst comprising at least one metal of Group VI or VIII and/or an oxide and/or sulphide thereof, separated gaseous products and at least part of unreacted constituents and products of secondary reactions being recycled to the dealkylation after separation of required product. The hydrorefining catalyst is suitable as an oxide and/or sulphide of cobalt and/or molybdenum, suitably supported on alumina. The hydrodealkylation is suitably catalytic, e.g. over Cr 2 O 3 [K 2 0/A1 2 0 3 , at 570‹ C. rising to 630‹ C. The dealkylated product has lower bromine and H 2 50 4 -test numbers, without significant increase in naphthene content, as compared with conventional processes.
Patent GB-1480923-A (GB)
Title: Process for the manufacture of 2-amino-3-cyanothiophenes
IPC: C07D233/38
Filed: 1974-12-05
Abstract: 1480923 2 - Amino - 3 - cyanothiophene derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Nov 1975 [5 Dec 1974] 52623/74 Heading C2C Compounds of formula wherein X is cyano, acyl, alkylsulphonyl, arylsulphonyl, optionally substituted alkoxycarbonyl, nitro, phenyl or sulphamoyl, and Y is hydrogen, optionally substituted alkyl or optionally substituted aryl, are prepared by reacting a compound of the formula with an acid halide in the presence of a compound of the formula and optionally in the presence of an aprotic solvent, and subjecting the resulting compound of the formula or an acid salt thereof, to hydrolysis in acidic medium, wherein Z is hydrogen or an optionally substituted alkyl or aryl radical, and R<SP>2</SP> and R<SP>3</SP> each independently representing optionally substituted alkyl, cycloalkyl or aryl radicals, or R<SP>2</SP> and R<SP>3</SP> together form with the nitrogen atom a 5- or 6-membered nitrogen-containing heterocyclic ring.
Patent GB-1106839-A (GB)
Title: Transistor differential amplifier
IPC: H03F3/26
Filed: 1966-11-24
Abstract: 1,106,839. Transistor amplifiers. INTERNATIONAL BUSINESS MACHINES CORPORATION. 24 Nov., 1966 [26 Nov., 1965], No. 52627/66. Heading H3T. In a differential amplifier comprising a transistor T1 having its base connected directly to a first input A and to a resistor Z for matching the first input to its signal source and its emitter connected by a resistor network R1, R2 to a second input A<SP>1</SP> arid to a voltage source, the resistor network R1, R2, R3 and R9 is arranged such that the second input A<SP>1</SP> is matched to its signal source and such that the current gains from the first input to the output at the collector and from the second input to the output at the collector are equal. As shown a further two similar amplifiers T2 and T3 are provided having two more inputs B, B<SP>1</SP> and an output taken from the collector D of the transistor T3. Transistor T3, which receives its inputs from the output of the transistors T1 and T2, may be replaced by a transistor of the NPN type and each differential amplifier or the complete circuit can be constructed in an integrated form. The differential amplifier, may be fed with pushpull input signals and the signal source may comprise a long transmission line.
Patent GB-1113220-A (GB)
Title: Photoconductive targets
IPC: G09B7/06
Filed: 1965-12-13
Abstract: 1,113,220. Photo-conductive targets. TOKYO SHIBAURA ELECTRIC CO. Ltd. 13 Dec., 1965 [15 Dec., 1964; 31 May, 1965; 11 June, 1965], No. 52819/65. Heading H1K. A photoconductive target comprises a transparent conductive film formed on a transparent substrate, a plurality of lead oxide layers having a plurality of interfaces between the layers, the interfaces increasing the dark resistance in the direction of the thickness of the layers. In an embodiment a glass plate 22 having conductive SnO 23 thereon is coated by vacuum deposition with PbO 61 in an oxygen containing atmosphere, layer 62 of PbO is deposited in an atmosphere of greater O 2 , content, layer 63 of PbO is provided and an electron bombardment proof layer 64 of SiO, CaF 2 , NgF 2 , SiO 2 , AS 2 S 3 , Sb 2 S 3  or Sb oxysulphide is added. In another embodiment, the first and third layers may contain an oxide or sulphide of monovalent Cu, Ag or Tl or trivalent Sb, As, Bi or In. The PbO layer is preferably excessively oxidized after deposition.
Patent GB-1514280-A (GB)
Title: System to control the ratio of air to fuel in a mixture delivered to an internal combustion engine
IPC: F02D35/00
Filed: 1975-12-24
Abstract: 1514280 Spray carburetters NISSAN MOTOR CO Ltd 24 Dec 1975 [24 Dec 1974] 52833/75 Heading F1H The flow of air through a passage 31 to the idling fuel passage 21 is controlled by a solenoid valve 33 receiving operating pulses of a width varying in dependence upon the oxygen content in engine exhaust gases. The two parallel passage portions upstream of the valve 33 have respective jets 311 and 312 and the inlet of the passage portion upstream of the larger diameter jet 311 is closed by a valve 313 when the throttle valve 15 is in its minimum open position. The valve 313 may be closed by a solenoid energized when a switch 314 linked to the valve is closed or operated by a diaphragm, Fig. 4 (not shown), subject to the vacuum at a port in the carburetter induction passage 11 immediately upstream of the minimum opened valve 15. The mixture produced by the carburetter is maintained substantially stoichiometric
Patent GB-1078680-A (GB)
Title: Very high pressure apparatus
IPC: B30B11/00
Filed: 1964-12-31
Abstract: 1,078,680. High pressure apparatus. KOBE STEEL WORKS Ltd. Dec. 31, 1964 [Jan. 10, 1964], No. 53083/64. Heading B1X. An apparatus for applying high pressure to an object M comprises a pair of aligned pistons 61, 62 adapted to be driven towards each other and at least three pistons (63), 64, &c. arranged radially in a plane perpendicular to the common axis of the aligned pistons; two aligned oppositely disposed bolsters 1 and 2 secured to the pair of aligned pistons; members (33), 34, &c. adapted to support the respective radially arranged pistons, each support member being formed at its outer end with surfaces 7, 8 oppositely inclined at angles of 45 to the direction in which the pistons are driven and the bolsters being formed with complementary inclined surfaces to make slidable contact with the respective adjacent inclined surfaces of the support members. When pressure is applied to the bolsters by mechanical or hydraulic means to drive aligned pistons 61, 62 towards each other, the radially arranged pistons 63, 64 &c. are driven radially inwardly by transmission of power through the complementary inclined surfaces of the bolsters and the support members. In operation, material enclosing the object to be compressed is forced into the spaces between the inclined surfaces of adjoining pistons to form gaskets (Fig. 9 not shown).
Patent GB-531161-A (GB)
IPC: D02J3/02
Abstract: 531,161. Forming staple fibre yam from continuous filament yarn. AMERICAN VISCOSE CORPORATION. Aug. 16, 1939, No. 23671. Convention date, March 21. [Class 120 (iii)] A broken filament or staple fibre yarn is produced from a continuous filament yarn by directing the travelling yam on to a rotating abrasive roller and withdrawing it in a lateral direction extending at an angle to the path of travel of the yam on the roller. As shown in Fig. 1 the continuous filament yam 1 is drawn from an uptwister 2, passes through a guide 9, over the rotating abrasive roller 3 and through a guide 5 displaced laterally from the guide 9 to the winding-up bobbin 8; the continuous filament yarn may be delivered from a bobbin downwards to a ring twister and a number of yams after passage through the guides and over the roller may be collected by a single guide and plied together by a ring twister. The yarn may be arranged to pass around the abrasive roller by passage through a number of laterally displaced guides ; the roller may be arranged at an inclination to the path of the yam so that it leaves the roller at an angle to its path thereon.
Patent GB-1274010-A (GB)
Title: Packing list envelope
Inventor: WERBY RICHARD ALAN
IPC: B65D27/00
Filed: 1969-10-30
Abstract: 1,274,010. Envelopes. R. A. WERBY. 30 Oct., 1969, No. 53135/69. Heading B6A. An envelope for packing lists comprises rear and front panels 11, 10 made of paper and polyethylene, respectively, and heat sealed together marginally to provide a pocket which is accessible through a transverse slit 16, disposed with rear panel medially of an area 15 free of pressure sensitive adhesvie, the remainder of the back panel being coated with pressure sensitive adhesive which is protected by a releasable panel 12. The panel 12 may also be provided with a slit 16 to facilitate peeling off the panel 12. In another embodiment the slit 16 may be replaced by an opening (23, Fig. 3) and in a further embodiment the area 15 may be offset transversely relative to the opening (23, Fig. 4). The uncoated area 15 provides a grip which facilitates extraction of the packing list.
Patent GB-1486257-A (GB)
Title: Electronic computer with magnetic read-write unit
IPC: G06K7/016
Filed: 1974-12-09
Abstract: 1486257 Skew connecting ING C OLIVETTI & C SpA 9 Dec 1974 [28 Dec 1973] 53148/74 Heading G4C A magnetic read/write unit is arranged to write binary coded words on a magnetic card with the 1-bits along one track and the 0-bits along another track and includes means to write aligned reference marks in the two tracks and, in response to the reading of the reference marks to establish a delay due to skew and to correct the skew of the following words by delaying the bits from the leading track. A lead E3 provides a signal indicative of the presence of a card in the reader and data signals are provided on leads E5, E6 corresponding to the two tracks. A microprogrammed unit 3 assembles bytes in a local memory 42 for subsequent transfer to main memory. Skew is corrected by measuring using a counter, the delay between the receipt from the reader of two, nominally aligned, reference marks, one in each track. The tracks contain reference marks at regular intervals such that the skew delay remains substantially constant between reference marks. As each data bit arrives a flag bit indicative of which track leads is examined and the leading track bits are delayed by shifting them one position through a four-bit shift register each time a counter, loaded with a count established during the delay measurement, is decremented to zero. The rate of decrementing is chosen so that the data bit emerges from the four-bit register at the end of the required delay. The bits are thus skew corrected and stored in the correct sequence. The Specification gives flow charts for the microprograms, Figs. 3, 4 (not shown).
Patent GB-1529839-A (GB)
Title: Stop motion
IPC: B65H63/028
Filed: 1975-12-30
Abstract: 1529839 Knitting machines VYZKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI 30 Dec 1975 [2 Jan 1975] 53181/75 Heading D1C A stop motion actuated by yarn breakage or excessive tension has, for monitoring the integrity of the yarn, a first arm 13 fixed to a switch lever 14 and comprising magnetically attractive material 15 lying within the range of a magnet 23 which biasses the arm to a switch actuating position and a spring biassed second arm 4 in an overcentre arrangement, the arms having a combined first position in which the yarn holds them against the action of the magnet and the spring and a combined second position when the yarn is removed by breakage or excess tension in which the switch 17 is actuated by the first arm.
Patent GB-1169908-A (GB)
Title: Breathing apparatus with Pressure Reduction Warning Device
IPC: A62B9/00
Filed: 1966-11-29
Abstract: 1,169,908. Breathing apparatus AGA A.B. 29 Nov., 1966 [23 Dec., 1965], No. 53304/66. Heading A5T. [Also in Division F2] Breathing apparatus comprises a breathing mask 1, a container 5 for gas under pressure, a conduit leading from the container via a pressure reducing device 4 to the breathing mask, and a high pressure valve 6 connected in the conduit between the container and the pressure reducing device, the high pressure valve (1) constituting a warning device against failing gas pressure in the container, (2) having a valve chamber within which is provided a valve member 15 spring-biased against a valve seat 16, and (3) having a valve shaft 14 attached to the valve member the shaft having a cross-sectional area larger than the area of an opening in the valve seat. As shown, the apparatus includes a breathing regulator 2 which includes an inhalation demand valve and an exhalation valve. The high pressure valve 6 is held open when the pressure in the container 5 is high by the gas acting through the conduit 17 on the valve member 15. When the gas pressure starts to fail inhalation acting through the conduit 18 causes the valve to close so as to limit the inhalation period which registers with the user as a warning. A handle 31 may then be pulled so as to lock the valve open. The high pressure valve itself (Figure 2) comprises the valve member 15 on the valve shaft 14 within a chamber 13 and biased against the valve seat 16 by a spring 19. The valve member 15 may be manually lifted off the valve seat by the handle 31 which is connected to the valve shaft 14 through a flexible wire 32 and an actuating sleeve 24 the sleeve 24 and shaft 14 being connected together with limited free play by a transverse pin 25. When the valve is opened manually it is locked open by a member 30 {see also Figure 3, not shown) which is spring loaded to move to a position underneath a shoulder 27 on the actuator member and between the shoulder and the valve casing 12. The member 30 may be unlocked manually.
Patent GB-1135218-A (GB)
Title: Nickel electrodes
Inventor: OKINAKA YUTAKA
IPC: H01M4/32
Filed: 1965-12-16
Abstract: 1,135,218. Electrodes. WESTERN ELECTRIC CO. Inc. 16 Dec., 1965 [7 Jan., 1965], No. 53378/65. Heading H1B. A foraminous nickel electrode is activated by impregnation with nickel hydroxide, followed by at least one cycle of charge, overcharge and discharge in a carbonate (e.g. K 2 CO 3  or Na 2 CO 3 ) solution. The impregnating material, nickel hydroxide, is stated to merely promote the formation of nickel hydroxide in situ by the corrosion of the electrode per se and the amount of impregnating nickel hydroxide used bears no relation to the capacity of the electrode. The nickel electrode may be charged, overcharged and discharged in a potassium hydroxide solution either before or after activation in carbonate solution, but such a step is inessential since it occurs naturally in a battery incorporating such an electrode. Various conventional impregnating methods are mentioned.
Patent GB-1235055-A (GB)
Title: Process for drying urea solutions
Inventor: GRAUMANN JOHN LEWIS
IPC: C07C273/16
Filed: 1969-10-31
Abstract: 1,235,055. Evaporators, film type; removal of water from urea solutions. WHITLOCK MFG., CO. 31 Oct., 1969, No. 53557/69. Addition 1,193,221. Heading B1B. [Also in Division C2] In a process for drying an aqueous solution of urea, as claimed in parent Specification, wherein the solution is passed in film-form down the interior surface of vertically-disposed heated tubes and then flows downwardly through packing while a stream of heated inert gas, e.g. air, is passed upwardly through the packing and the tubes, the temperature range for heating the stream of inert gas is extended from 310‹ to 350‹F., and the temperature range to which the urea solution is heated is extended below 280‹ to 260‹F. In an example, a solution of urea containing 31% water is dried by passing it through tubes heated by steam at 295.6‹F., and introducing air at 340‹F into the apparatus. The urea discharged from the apparatus has a temperature of 279‹F and contains 0.29% water.