baber/WOPTO huggingface dataset:
Patent GB-1423063-A (GB)
Title: Scannable antenna array
IPC: H01Q3/28
Filed: 1973-06-13
Abstract: 1423063 Aerials NATIONAL AERONAUTICS & SPACE ADMINISTRATION 13 June 1973 [15 June 1972] 28231/73 Heading H4A A system for scanning a ring-shaped array of aerial elements in which a segment of elements is energized and elements are switched into the leading edge of said segment while elements are switched out of the trailing edge, comprises means for gradually introducing power into an element on the leading edge while gradually removing power from an element on the trailing edge. In an embodiment, a spin-stabilized space satellite 40, Fig. 1, has a cylindrical aerial array 41 disposed about its axis, a beam from which is electronically despun so as to remain directed at the earth. The array comprises 32 panels each containing a four-unit sub-array. Each unit has two parallel folded active dipoles and two directors, which are mounted on a mast disposed perpendicularly to the panel surface (Fig. 2, not shown). Said surface acts as a ground plane, and the four units of each sub-array are connected together for feeding in common. The satellite spins at 100 r.p.m. and a segment of five sub-arrays is energized. The angle between adjacent sub-arrays is 11“ degrees and as each advances towards the plane containing the satellite and earth axes, it is switched in when 28# degrees therefrom. Simultaneously, another sub-array, which is 28# degrees from said plane on the other side, is switched out. Power is then uniformly increased in the advancing sub-array from 0 to 5 watts over 11“ degrees. Simultaneously, power is uniformly reduced from 5 to 0 watts in a corresponding array on the receding side (Figs. 3, 4, not shown). A transmitter 50, Fig. 5, supplies power to selected sub-arrays through a four-way divider 51, amplifiers 52 to 55, and diplexers 56 to 59, to variable power dividers 60 to 63, each of the latter being associated with a respective two of eight single-pole four-throw (SP4T) switches 65 to 71. Each power divider has two outputs and its input may be shared between them in any proportion. The power dividers and the switches are controlled by attitude determination and aerial control circuits 72. The SP4T switches each comprise four PIN diodes which are connected in parallel to a common input, and which have separate outputs. The diodes are normally non-conductive, but can be individually biased to be conductive (Fig. 6, not shown). In the variable power dividers, two varactor diodes couple two hybrids. By appropriately biasing the varactor diodes an input to one hybrid appears in desired proportions at two outputs at the other hybrid (Fig. 7, not shown). Application to sonar scanning is mentioned.
Patent GB-1046550-A (GB)
Title: Improvements in corpuscular ray apparatus
IPC: H01J37/141
Filed: 1964-07-09
Abstract: 1,046,550. Electron microscopes; superconductors. SIEMENS & HALSKE A.G. July 9, 1964 [Aug. 16, 1963], No. 28277/64. Headings H1D and H1K. An electron microscope incorporates an ironless magnetic lens in which the magnetic screen 2 surrounding the windings 1 and a centrally apertured disc 6 are rendered superconducting by connection to a surrounding cryopump so that the flux 8 is driven into and concentrates in the disc aperture 7. The lens windings may also be of superconductive material. An axially movable member with spring connections is provided to establish the connection between the screen 2 and the cryopump before current is passed through the lens windings, and between the screen and the periphery of the apertured disc 6 after the current has been switched on, in order, first, to establish the magnetic flux and, then, to drive the flux into the lens aperture 7. A similar effect may be produced by providing a heating winding which acts on the central region of the apertured disc. Microscope parts on either side of the lens are cooled to not so low a temperature by further cryostats and the apertured disc 6 itself may be at a higher temperature than the cryopump, e.g. by the nature of the heat connections, or by heating the disc with a heater winding or by bombardment by the electron beam, in order that the pump shall act as a cooling trap for contaminating gases and vapours. On either side of the lens, the electron beam passes through non-magnetic heat insulating tubes containing aperture diaphragms and having slot-like openings in the walls in order to obtain the high vacuum of the cryopump inside the tubes. The tubes may be of metal mesh. The upper tube carries the object carrier at its lower end. Prior art arrangements are referred to according to which (1) ferromagnetic polepieces are provided with superconducting screening; (2) a superconducting tube extends between the polepieces; or (3) superimposed superconducting apertured discs are arranged between two lens windings.
Patent GB-145341-A (GB)
Title: Improvements in or relating to resilient wheels for vehicles
IPC: B60C15/02
Filed: 1919-06-11
Abstract: 145,341. Rapson, F. L. June 11, 1919. Tyre attachments to rims; jackets and covers. - A securityband 1 of rubber or other resilient material adapted to seat on the rim 4 is formed with V-shaped grooves 6 to receive the beaded edges 2 of the tyre cover 3. The band may be secured to the rim by radial bolts.
Patent GB-209832-A (GB)
Title: Improvements relating to houses, pens or the like for birds or animals
IPC: A01K31/04
Filed: 1922-10-18
Abstract: 209,832. Dixon, R. Oct. 18, 1922. Kennels; hutches; stables. - A house, pen, &c. for animals or birds is fitted with an endless-band conveyer mounted on a series of rollers for removing the droppings of the animals and for like purposes. A band 1 beneath the perches 28 of a poultry house passes over idle rollers 4 and drums 2, 3, one of which is turned by a handle 9 and is mounted on a sliding frame with tensioning screws 31. A resilient scraper 10 and a brush 14 remove material from the band 1 and a brush 15 applies liquid or powdered disinfectant thereto from a container 21. Sawdust &c. is fed from a container 22 on to the band 1 by a stirrer 25 operated from the drum 2. Specification 785/15, [Class 5 (ii), Housing &c. animals], is referred to.
Patent GB-678604-A (GB)
Title: New fatty acid amido-alkyl-amino ester salts and process for the production thereof
Inventor: KOEBNER ADOLF
IPC: D06M13/46
Filed: 1950-11-20
Abstract: The Specification comprises fatty acid amido-alkyl-amino ester salts of the general formula:  <FORM:0678604/IV (b)/1> wherein R is an alkyl or aralkyl group which may be saturated or unsaturated and contains between 8 and 20 carbon atoms; Ra is H or an alkyl or aralkyl group which may be substituted or unsubstituted; Rb is H or an alkyl group; Rc is an alkylene group; Rd and Re each represent hydrogen, alkyl or hydroxyalkyl groups; Rf is an alkyl group containing from 11 to 17 carbon atoms, and X is a halogen atom (other than fluorine).  The compounds may be obtained by a process wherein a b -hydroxyethyl amide of an aliphatic or aromatic aliphatic carboxylic acid of the general formula:  <FORM:0678604/IV (b)/2> is condensed with a phosphorus halide (other than fluoride) or sulphur oxy-halide (other than fluoride) and with a fatty acid amine ester of the general formula:  <FORM:0678604/IV (b)/3> In examples: (1) triethanolamine is added to a benzene solution of stearic acid and the mixture refluxed to form a solution of bis-(b -hydroxyethyl)-amino-ethyl stearate which is then refluxed with b -chlorethyl oleoylamide, the latter being prepared separately by treating b -hydroxyethyl oleoylamide with phosphorus trichloride at 60-70 DEG  C.; (2) N-methyl diethanolamine is refluxed with a solution of oleic acid in toluene and the solution which contains N-b -hydroxyethyl N-methyl aminoethyl oleate is refluxed with N-b -chlorethyl N-benzyl oleoylamide the latter being obtained by treating N-b -hydroxyethyl N-benzyl oleoylamide with phosphorus trichloride at 60-70 DEG  C.; (3) bis-(b -hydroxyethyl)-aminoethyl oleate (prepared as in Specification 587,534), is heated at 120 DEG C. with N-b -chloroethyl N-methyl lauramide the latter being obtained by treating N-b -hydroxyethyl N-methyl lauramide with thionyl chloride at 60 DEG  C.; the reaction product has the general formula above.  The products are useful as treating agents in the textile industry (see Group IV (c)).ALSO:Compounds having the general formula <FORM:0678604/IV (c)/1> in which R is alkyl or aralkyl, saturated or unsaturated, and contains 8 to 20 carbon atoms, Ra is H or an alkyl or aralkyl group which may be substituted or unsubstituted, Rb is H or an alkyl group, Rc is an alkylene group; Rd and Re each represent hydrogen, alkyl or hydroxyalkyl groups; Rf is an alkyl group of 11 to 17 carbon atoms and X is a halogen atom (other than fluorine) (see Group IV (b)) can be used as auxiliaries to inhibit the formation of electric charges on spun fibres during processing; or as softening agents in the textile industry, e.g. when applied to cellulose acetate.
Patent GB-535830-A (GB)
Title: Improvements in or relating to electricity meter change-over devices
IPC: G01R11/56
Filed: 1939-10-20
Abstract: 535,830. Supply meters. RAMSEY, M. A. Oct. 20, 1939, No. 28373. [Class 37] For changing the rate of a meter according to the time of day or year or according to the circuit in use the voltage coil 34b is connected by a switch 36b, which may be operated by a relay coil 40, either across the mains 14, 14a or across the secondary winding 52 of a voltage transformer 48, thereby changing the rate of the meter. The switch 36b may have further contacts connected to tappings on the secondary coil 52, so as to provide a number of alternative rates. The invention is applicable to polyphase and to direct-current meters.
Patent GB-504280-A (GB)
Title: Improvements in electrolytic cells
IPC: C09K5/02
Filed: 1937-10-19
Abstract: 504,280. Electrolytic condensers. BRITISH ELECTROLYTIC CONDENSER CO., Ltd., GAUT, G. C., and PHILLIPS, D. J. P. Oct. 19, 1937, No. 28506. [Class 37] A spacer-electrolyte consists of a non-tacky, porous and structurally continuous matrix of cellulose derivative carrying an electrolyte. This is obtained by casting a sheet or lilm from a solution of a suitable cellulose ester or ether, one or more ionogens and one or more high boiling-point organic solvents for the ionogen. Cellulose esters or ethers are not suitable if they corrode the electrodes like nitrocellulose, or contain sulphates or chlorides soluble in the electrolyte composition, or are not precipitated by water or an aqueous solution of the ionogen. Cellulose acetate, ethyl cellulose, cellulose aceto-butyrate are preferred. Examples of solvents are acetone, methyl acetate or ethyl formate or ethylene glycol diacetate. Examples of ionogens comprise citric or boric acids or salts thereof. For the high boiling-point liquid which should not be a solvent for the cellulose derivative but should dissolve or combine with the ionogen, mono-, di- or tri-ethylene glycol and glycerine may be used. An organic borate compound such as amyl borate acting as plasticizer and a filler such as shellac or colophony may.be added.
Patent GB-1279402-A (GB)
Title: Improvements in or relating to cephalosporin derivatives
Inventor: CLARK JOHN COLIN
IPC: A47J43/07
Filed: 1968-06-14
Abstract: 1279402 Cephalosporanic acids GLAXO LABORATORIES Ltd 30 May 1969 [14 June 1968] 28528/68 Heading C2A Novel cephalosporanic acids having the Formula I: and salts, esters or anhydrides thereof, wherein Y is -CH 2 - or -CO- and R is bromo, azido or an aliphatic, carbocyclic aromatic, heterocyclic aromatic having 1 or 2 hetero atoms, araliphatic or cycloaliphatic group, and the group RYCO has an atomic weight sum of at least 120 when R is a carbocyclic aromatic group, m is 0 or 1, and R<SP>2</SP> is hydrogen or,C 1 -C 3  alkyl which may be substituted by carboxy, carboalkoxy or mercapto, provided that when m is 0 and R<SP>2</SP> is methyl the group Y is -CO-, are prepared by (a) acylating a correspondingly 3-substituted 7-aminocephalosporanic acid or acid-addition or base salt or easily hydrolysable ester thereof with an acylating agent corresponding to the acid RYCOOH, or (b) reacting a correspondingly N - acylated cephalosporanic acid, salt or ester having a group -CH 2 P at the 3-position, P being a group replaceable by the group -S(O) m R<SP>2</SP>, with a thioetherifying agent corresponding to the latter group and, if desired, in (a) or (b) subsequently oxidizing a 3-CH 2 SR<SP>2</SP> group to a 3-CH 2 SOR<SP>2</SP> group. Suitable acylating agents are the acid halide, anhydride or mixed anhydride, an active ester or azide of the acid, or the acid itself together with a condensing agent. The group P may be an acetoxy group, in which case the thioetherifying agent is an appropriate thiol. Alternatively the starting material may be a 3-hydroxymethyl compound which is first converted to a compound having a group -CH 2 X at position 3, X being a group (e.g. halogen) such that the acid HX has a pKa of not more than 4À0 in water at 25 C., and then the 3-CH 2 X compound is reacted with a thiol so that the thiol residue replaces X by nucleophilic displacement. A catalyst, e.g. a salt of Hg, Ag or Au, is often helpful in this replacement reaction. The sulphinyl compounds (i.e. wherein m is 1) may be prepared by nucleophilic displacement as described above, using a sulphenic acid R<SP>2</SP>SOH in place of the thiol, or by oxidation of the 3-thio-ether, e.g. with chromic oxide, sodium periodate, dibenzoyl peroxide, peracetic acid, or oxygen in a tetrahydrofuran medium containing peroxide. Pharmaceutical compositions having antibiotic activity against gram-positive and -negative bacteria comprise a cephalosporanic acid of Formula I as defined above except that the proviso need not apply, or a non-toxic salt or ester thereof, together with a pharmaceutical carrier or excipient. The compositions may be in oral, topical or injectable forms or in the form of an intra-mammary preparation for veterinary use. Reference has been directed by the Comptroller to Specification 1,104,937.
Patent GB-322276-A (GB)
Title: Improvements in or relating to apparatus for discharging coal and like material from wagon
IPC: B65G67/00
Filed: 1928-10-05
Abstract: 322,276. Quick, J. H. Oct. 5, 1928. Addition to 294,048, [Class 78 (iv), Loading &c.]. Shoots.-Coal is dislodged from a wagon on tipping by a plate a carried at the outer end of bars 4 attached to a transverse bar s with rollers ss running along the top edges of the sides of the shoot. The rollers ss normally rest in the bottom of the guideways v with the front-edge a<1> of the plate resting upon a bar u, and the plate 4 is drawn along the floor of a wagon during tipping. In the form shown in Fig. 2, a rope h at each side attached to the bar s is connected, before the wagon is tipped, to a corresponding rope L which is reeved round sheaves y, 2 on the fixed structure and a sheave 1 on the tipping cradle and is anchored to the structure at 3. On tipping, the movement of the sheaves 1 shortens the ropes L and hauls on the ropes h drawing the plate a into the wagon. In a modification, Fig. 3 (not shown), the plate is hauled into a tilted wagon by winding-gear on the structure. Runners are fitted on the underside of the plate 4 at 7, 7. The plate may be worked sidewise in the .wagon by a transverse rope operated by a hand-lever a a. When the plate is not in use, the ropes h and the extra lengths h h are hooked up on the sides of the shoot and the ropes L are secured to weights which run on guide rails Q to take up slack whilst tipping, or the ropes L may be detached from the sheaves 1. The plate then rests upon the bar u which is cranked and can be turned to raise the plate out of the way of large coal passing down the shoot. A chain ZZ on the structure is used for raising the wagondoor by tilting and lowering the wagon.
Patent GB-621849-A (GB)
Title: Method of and apparatus for weaving pile fabrics
IPC: D03D27/06
Filed: 1945-10-29
Abstract: 621,849. Pile fabric looms tensioning warps ; reeds. MARSHALL FIELD & CO. Oct. 29, 1945, No, 28583. Convention date, Dec. 6, 1944. [Classes 142 (ii), 142 (iii) and ]42(iv)] Pile warp yarns 70, Fig. 4, are looped over fixed pile wires 56 by guides.90, a double pile holding pick 93 is inserted by a needle, the guides are lifted out of the shed, and the pick is beaten up by a reed 38 through which groups of three ground warp yarns pass as shown. After ground picks have been inserted the guides are shogged to the opposite side of the wires and lowered into the shed in readiness for the next pile holding pick. The pile loops slide off the wires between wire supporting discs 143 ; if cut pile is required, knives are mounted on the ends of the wires. A second row 90a of guides may be used, feeding the same or a different coloured pile yarn, and shogged together with or in the opposite direction to the guides 90, so that double loops 70, 70a, Fig. 13, are produced. Tensioning warps.-The pile warp is tensioned by rollers 72, 73, 75, Fig. 1, on a weighted lever 77, and slack is taken up, when the guides 90 are lifted, by a spring-loaded rod 97,. Fig. 4, pivoted at 100.
Patent GB-506066-A (GB)
Title: Improvements relating to automatic or semi-automatic pilots for aircraft
IPC: G01C19/00
Filed: 1937-10-20
Abstract: 506,066. Fluid-pressure servomotorcontrol systems.. SPERRY GYROSCOPE CO., Inc. Oct. 20, 1937, No. 28534. Convention date, Oct. 23, 1936. [Class 135] An automatic or semi-automatic pilot for aircraft of the general type described in Specification 416,813, [Group XXXIII], comprises a gyro-vertical 1 for controlling the attitude of the aircraft fore-and-aft and laterally, the gyroscope actuating a cut-off disc 7 co-operating with ports 8 and 9, Fig. 5, controlling the pressures in lines 11 and 12 which are used to actuate the servomotor 90 of a control surface 91 through a relay< >valve 92. The ports 8 and 9 are operated to "follow-up" the movement of disc 7, by a pulley 5 connected to the control surface, through a differential gear 22 and gearing 20, 19 and 18 and may also be operated by a hand control 13 through the third member of the differential to effect an adjustment of the control surface. A barometric device also operates through this third member of the differential 22 to control the elevation of the craft and comprises a flexible container 52, Fig. 2, which actuates, on changes in altitude, a pivoted shutter 63 controlling air ports 62, 62<1> through which air is drawn into the normally evacuated casing 47 of the apparatus and which issues through opposed nozzles 30, 31 of a small reversible turbine 29. Any unbalance of the air jets between the two nozzles due to a deviation of the craft from the desired height effects a rotation of the turbine which rotates, through a slippable clutch 37, the shaft 28 of the hand adjustment mechanism 13 of the ports 8 and 9 to operate the elevator servomotor 90. A follow-back from the turbine motor 29 to the barometric device is provided in the form of a cam 65 on the shaft 28 which acts on a loading spring 69 to centralize the shutter 63 to stop the turbine and hence the correcting movement of the elevator. As the craft approaches the desired altitude the spring 69 moves the shutter 63 in the opposite direction to effect opposite rotation of the turbine 29, and hence a return movement of the elevator, before the desired altitude is reached so as to avoid "hunting" effects. The angle of ascent or descent of the craft is limited by a chain connection 42 from an adjusting shaft 60 to the clutch 37 so that the movement of shaft 28 is thereby limited and the craft cannot assume a dangerous attitude. The barometric container 52 may be normally open to atmosphere so as to be inoperative, but adapted to be closed at will in the manner described in Specification 418,499, [Group XXXIII]. Specifications 451,844 and 504,243 also are referred to.
Patent GB-401873-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H51/22
Filed: 1932-10-15
Abstract: 401,873. Light-current relays. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ERIKSEN, J., c/o General Electric Co., Stoke, Coventry. Oct. 15, 1932, No. 38798. [Class 38 (v).] A polarised relay having a magnetic circuit which is divided throughout a portion of its length into two branches the armature being inserted at a dividing point, has the sensitivity of the relay adjusted by means of a member of magnetic material extending between the centre of the armature and the single portion of the magnetic circuit, which member is adjustable relatively both to the armature and the single portion. As shown in Figs. 1 and 2 the magnetic circuit comprises a permanent magnet 1 butted at one end against a magnetic member 16 carrying the cores 14 of the two operating coils 8, adjacent the free ends of which is mounted a centrally pivoted armature 10. Between the centre of the armature and the free end of the magnet 1 is disposed an adjustable magnetic member 4 pivoted at 24 and provided with adjusting screws 5, 6. By adjustment of the screws 6 the gaps between the magnet 1 and the member 4 and the enlargement 9 of the member 4 and the central portion of the armature may be varied, so varying the polarising flux and the sensitivity of the relay. Each core 14 carries a pair of magnetic nuts 15 on its end adjacent the armature, the adjustment of these nuts equalising the forces on the armature exerted by the coils 8, or, alternatively, they may be adjusted to produce a magnetic bias towards one side. The armature carries an arm 12 bearing contacts 17, 18 playing between relatively fixed contacts 13, 20, held in locking supports 21, 22, current being conducted to the armature through a spring 30. The armature tongue 12 may be light and slightly flexible to prevent contact bounce by being formed of two U-section halves united at their ends farthest from the armature or may, alternatively, be made of a solid bar when the armature is to be oscillated by alternating currents supplied to the energising coils. The cores 14 are secured to the plate 16 by screws 26 on their screwed ends 25 and slots may be formed in the plate 16 to enable the cores to be drawn away from the relay without disturbing the adjustments of the magnetic circuit.
Patent GB-1495530-A (GB)
Title: Manufacture of soda ash
IPC: C01D7/37
Filed: 1975-06-17
Abstract: 1495530 Manufacture of soda ash IMPERIAL CHEMICAL INDUSTRIES Ltd 17 June 1975 [28 June 1974 5 March 1975] 28805/74 and 9106/75 Heading C1A A process for the manufacture of soda ash of low fluoride content from an aqueous solution comprising Na 2 CO 3  and NaF comprises cooling the solution to give a slurry of in a first mother liquor comprising NaF, separating the slurry into the and the first mother liquor, converting the or an aqueous solution of the obtained by melting the with water, to Na 2 CO 3 .H 2 O by evaporation in the presence of a recycled second mother liquor to give a slurry of in the second mother liquor, separating the from the slurry and recycling the second mother liquor to the precipitation stage. In an example however, a solution obtained on melting in water was almost identical in composition to the second mother liquor and the second mother liquor was not recycled. The aqueous solution comprising Na 2 CO 3  and NaF may be filtered to remove insoluble impurities, treated with an alkali metal or alkaline earth metal hydroxide to convert HCO 3 <SP>-</SP> ions to CO 3 <SP>2-</SP> ions and treated with charcoal, H 2 O 2 , OClions or Cl 2  to remove or bleach organic impurities prior to the precipitation stage.