baber/WOPTO huggingface dataset:
Patent GB-1219684-A (GB)
Title: Filter system
Inventor: SHARLIT IAN B
IPC: B01D46/04
Filed: 1968-04-03
Abstract: 1,219,684. Electrostatic separators; gas filter. HITCO. 3 April, 1968 [3 April, 1967], No. 16067./68. Headings BIT and B2J. A filter bag for collecting particulate material is made of an electrically conductive carbon fibre cloth which is coated with up. to 10% by weight of lubricant comprising a material 1 selected from silicones fluoroethylene polymers, graphites and mixtures thereof. As shown in Fig. 1 the filter bags 10 are used in a device for extracting particles from flowing gases, the bags 10 being electrostatically charged by being connected by bands 37 to a variable high voltage source 35. The flow rate of the inlet gases is measured by a sensor 40 which is arranged through control apparatus to adjust the electrical potential maintained by the voltage source 35. The bags are cleaned by means of a vibrator motor 31 which causes the dust in the bags to fall into a hopper 22. Alternatively the bags may be cleaned by reversing the flow of air, the air being conducted into outlet 33. A valve 45 is closed and a valve 25 is opened the dust being drawn through the hopper 22.
Patent GB-857934-A (GB)
Title: Improvements in five component lenses preferably for photographic purposes
Inventor: ZOELLNER HARRY
IPC: G02B13/16
Filed: 1959-05-11
Abstract: 857,934. Optical objectives. ZEISS JENA, C. VEB. May 11, 1959, No. 16125/59. Class 97(1) An optical objective of relative aperture at least 1 : 1 has a front and rear member separated by an air space containing a diaphragm, the front member consisting of two convergent elements and a dispersing doublet and the rear member consisting of a front convergent element and a dispersing doublet, wherein the numerical value of the focal length of each element or each doublet is greater than the equivalent Local length of the objective. Preferably, the radii of tne external surfaces of each element or doublet are numerically greater than the focal length of the objective and the cemented surfaces of both doublets are concave towards the diaphragm and are dispersive. The convergent element in each doublet is preferably on the diaphragm side thereof. For large image angles (such as 33 degrees), the rear member is preferably followed by a dispersive fieldflattener. Optical data are given for one embodiment of the combined objective and fieldflatness shown.
Patent GB-570341-A (GB)
Title: Resolution of ª‡-hydroxy-ª‰:ª‰-dimethyl-ª†-butyrolactone
Filed: 1943-10-01
Abstract: Resolution of dl-a -hydroxy-b ,b -dimethyl-g -butyrolactone is effected by treating with chlorsulphonic acid to form the hydrogen sulphate, reacting with strychnine or brucine to form strychnine or brucine lactone sulphates, crystallizing and separating the strychnine or brucine d-lactone sulphate, and hydrolyzing to obtain d-a -hydroxy-b ,b -dimethyl-g -butyrolactone.  The strychnine or brucine salts may be treated with dilute mineral acid and the solution heated to hydrolyze the sulphate residue from the d-lactone which may be extracted with a solvent such as benzene after removing the crystallized alkaloid mineral acid salt by filtration.  Traces of the latter may be removed from the lactone by stirring an anhydrous solution thereof with adsorbent charcoal or by distilling the lactone in vacuo.  The strychnine d-lactone sulphate may be decomposed with alkali but this causes opening of the lactone ring and yields a less pure product.  The mother liquor from the alkaloid d-lactone sulphate crystallization may be hydrolyzed with mineral acid to recover the l-lactone.  In examples: (1) dl-a -hydroxy-b ,b -dimethyl-g -butyrolactone is dissolved in carbon tetrachloride and pyridine, and chlorsulphonic acid in chloroform and carbon tetrachloride added while cooling with ice.  After 24 hours at room temperature, solvents are evaporated and the residue dissolved in water neutralized with caustic soda, and a solution of strychnine hydrochloride added. Strychnine d-lactone sulphate crystallizes and is heated with aqueous hydrochloric acid, strychnine hydrochloride removed by filtration, and the mother liquor extracted with benzene.  The extract is evaporated in vacuo when the d-lactone crystallizes.  The filtrate from the strychnine d-lactone sulphate separation is treated with caustic soda, the strychnine filtered off, and the filtrate refluxed with hydrochloric acid, extracted with benzene, evaporated, and the l-lactone crystallized by solution in benzene and addition of petroleum ether; (2) chlorsulphonic acid is added to the dl-lactone in chloroform, and an aqueous extract of the lactone hydrogen sulphate worked up as in (1); (3) pyridine is used as solvent in preparing the hydrogen sulphate; (4) brucine hydrochloride is used in a similar process involving formation of brucine lactone sulphates. Specifications 552,705 and 5520/41, as open to inspection under Sect. 91, are referred to.
Patent GB-823319-A (GB)
Title: Improvements in or relating to woven blankets
IPC: D03D11/00
Filed: 1957-05-21
Abstract: 823,319. Blanket fabrics. BEACON MANUFACTURING CO. May 21, 1957 [Feb. 18, 1957], No. 16166/57. Class 142(4) A blanketed fabric has five pairs of superposed picks 1-10 and five warp threads a in a repeat of the pattern, the warp threads interlacing alike but passing over picks 1, 4, 5, 8, 9 respectively, whereby a 4-and-1 twill is produced on both faces, which are napped.
Patent GB-406896-A (GB)
Title: Improved pneumatic tyre for road vehicles with detachable and replaceable tread
IPC: B60C11/02
Filed: 1933-06-06
Abstract: 406,896. Pneumatic tyres. FINLAYSON, V. C., 52, Stanger Street, Durban, South Africa. June 6, 1933, No. 16221. [Class 144 (ii).] A detachable tread-band adapted to fit into a groove in a tyre cover comprises a rubber wearing-surface 3, a canvas &c. foundation 3<a> having transverse corrugations 5 to engage corresponding corrugations 4 in the base of the groove, and spaced tongues 8 to engage recesses 9 in the tyre. Wire or like reinforcements 7 may be fitted at the edges of the tread-band.
Patent GB-529534-A (GB)
Title: Improvements relating to telephone systems
IPC: H04M3/28
Filed: 1939-06-02
Abstract: 529,534. Exchange systems. SIEMENS BROS. & CO., Ltd., LONG, D. P., and HUMPHRIES, H. E. June 2,1939, No. 16270. [Class 40 (iv)] The device shown is connected by an access switch (not shown) to busy junctions and tests them for the presence of steady (tone) or interrupted (speech) voice-frequency current and may apply a releasing tone current to a faultily-held junction, When the test is started ST is operated and if the access switch is on an idle line the operation of FT shortly afterwards causes the stepping on of the access switch and the release of ST. When a busy junction is encountered, however, TA comes up and ET completes the circuit of a slow-tooperate relay TB. TA also connects the junction to the input circuit of a valve V<SP>1</SP> the biassing arrangements of which are such that the output is substantially constant for different values of input. The resulting currents are rectified at MR and fed to a D.C. amplifier V2 with a relay S in its plate circuit. The sensitiveness of the arrangement is adjusted in accordance with noise conditions by a biassing and reverse reaction resistance YC associated with V1 and a biassing resistance YB associated with V2. If the junction is silent S remains inert and when TB comes up W is energized and connects a resistance YH to a time-measuring apparatus (not shown) to cause it to measure a period of from one to three minutes. At the end of this period a circuit is made over contacts a, e of the device for AR which locks, lights a lamp and gives an alarm. If the junction is in use S responds intermittently to the speech currents and, after energizing Z or W on the operation of TB, energizes Y or X on changing over and subsequently the other relays of this group whereupon TA is released followed by TB and W ... Z and the access switch moves on. If the junction carries a steady tone, S is energized steadily and Z only is operated. After an interval, which in this case is from 15 to 60 seconds owing to the connection of resistance YK instead of YH to the time-measuring apparatus, a circuit is made for the alarm relay AR which lights a lamp L2. If the key RCK is thrown and the junction is silent relay P is operated over interrupter contacts tp, which close for an instant every six seconds, after the closure of the delay device contacts a, e and locks in series with Q which connects steady tone from RT to the junction and arranges for the temporary operation of R on the next closure of contacts tp to cause the release of P, and the removal of the tone. If the releasing signal is effective TA falls and releases TB. If not the next closure of tp energizes alarm relay AR to give a signal. During testing the balancing circuit of the junction circuit is modified by connection of YE or YF according as the detecting set or the tone source . is connected up. Speciification 462,862 is referred to in the Provisional Specification.
Patent GB-131497-A (GB)
Title: Improvements in and relating to Means for the Propulsion of Aircraft.
Inventor: BATES CHARLES
IPC: B64C11/00
Filed: 1918-10-07
Abstract: 131,497. Bates, C. Oct. 7, 1918. Addition to 119,161. Propelling; steering.-The collapsible hood for shrouding aircraft propellers described in the parent Specification is mounted so as to be adjustable in horizontal or vertical planes, or both. Figs. 1 and 2 show the hood e mounted for adjustment in a vertical plane, being arranged in an annular frame g adjustable about pivots c. The sections f of the hood are collapsed by means of a rod n', Fig. 4, passing through lugs n on the sections, and projections d<1>, Fig. 2, on the sections may slide in U-shaped guides d on the frame g. Locking-bolts i' are provided to hold the hood in the adjusted position.
Patent GB-439571-A (GB)
Title: Improvements in electric cooking stoves
IPC: H05B3/68
Filed: 1934-06-02
Abstract: 439,571. Electric cooking stoves. COLLINS, G. H., and COLLINS, H. F., Premier Works, Keeley Street, Birmingham. June 2, 1934, No. 16464. [Class 39 (iii)] [See also Group XXXVI] The heating-unit comprises resistance coils 29, 30 arranged concentrically in grooves in a refractory support 20 provided with feet 24 engaging holes in a baffle 13 supported by pillars 11 from a base 5. The coils may be connected in series or parallel. The support 20 is in sector-shaped pieces secured in position by a central circular portion 19 bolted to the baffle and by a wire 26 passing through perforations in the feet 24. Ribs 28 on the support separate adjacent parts of the elements. Perforations in the support, baffle and base permit drainage. A grid support 9 is carried by a casing 8 secured to the pillars 11.
Patent GB-843760-A (GB)
Title: Improvements in baffle mills
IPC: B02C13/09
Filed: 1959-05-13
Abstract: 843,760. Beater mills. HAZEMAG HARTZERKLEINERUNGS - UND ZEMENT - MASCHINENBAU G.m.b.H. May 13, 1959 [May 13, 1958], No. 16480/59. Class 59 In a mill comprising a rotor 2 provided with beater bars 4, adjustable pivotallymounted baffle plates 11, 12 and a pneumatic discharge pipe 18, a blower air inlet 21 is provided above which are arranged guide plates 16<SP>1</SP> in such a manner that the air path is narrowed nozzle fashion towards a gap 9 between the rotor, and a platform 8 and gaps 9<SP>1</SP>, 9<SP>11</SP> between the rotor and the baffle plates, the air stream passing through the gaps acting in opposition to the air stream produced by the rotor during rotation thereof. One of the guide plates, as shown at 16<SP>11</SP>, may be secured to the free end of the baffle plate 12. Material to be comminuted is delivered from a feed device 5. A discharge outlet 20 is provided for uncrushable material.
Patent GB-1042333-A (GB)
Title: Improvements relating to thin film magnetic storage arrangements
Inventor: BIRT DAVID EDWARD
IPC: H05K3/36
Filed: 1961-09-29
Abstract: 1,042,333. Magnetic storage apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 26, 1962 [Sept. 29, 1961; March 10, 1962], Nos. 16568/66 and 16569/62. Divided out of 1,042,331. Heading H3B. In a thin film store comprising magnetic storage elements disposed on supporting means, of the sort in which coupling between corresponding digit and sense conductors is in opposite senses in different parts of the arrangement so as to reduce the said coupling to residual values, a separate means associated with each digit conductor is provided to couple said digit conductor with its respective sense conductor, said means being adjustable so that the residual couplings between said conductors are reduced. The invention is described with reference to the multi-plane word organized store disclosed in the parent Specification. As shown, Fig. 12, the digit input to the store is applied via conductors 121, 122 on an insulating sheet 120b and continued on a similar sheet 120a inserted in the store. Conductors 123, 124 are connected to the sense wires in the lowest plane of the store, a cross-over H being arranged for conductor 124 between plates 120a, 120b. During testing of the store, a temporary connection 125 is made between conductors 123, 124 on sheet 120b to complete the sense winding, and its position is adjusted to the point of minimum coupling between digit and sense windings, said temporary connection 125 then being replaced by a permanent connection, e.g. solder. At the other end of the store, a similar adjustable loop is used to complete the digit winding. In an alternative arrangement, Figs. 13A, 13B (not shown), a pair of plates 126 forming one plane of the store, and a second pair of plates 127, are clamped together with gaps between each pair. Sense conductors 131, 132 cross over between pairs of plates; digit conductors 129, 130 do not. Coupling is minimized by adjustment of screws L, M, which flex the top plate of each pair between slots 128.
Patent GB-667959-A (GB)
Title: Improvements in ships' rudder position indicators
IPC: B63H25/36
Filed: 1950-07-03
Abstract: 667,959. Order-telegraph signalling apparatus. BUTLER, E. F., and HUNTER, A. July 3, 1950. No. 16580/50. Class 118 (ii). [Also in Group XXXIII] An indicator 93 is moved by pistons 88, 89 connected by pipes 11, 12 to similar pistons 83, 84 moved by an arm 80 connected to the member whose angular movement is to be indicated. A cross-connection 31 is provided to enable the system to be centralised, and a pipe 13 connected to a pump for filling the system. At the indicating end a reservoir is provided, connected to each side of the pipe system by valves sensitive to both excess positive and negative pressures. In modifications double acting pistons are provided at each end of the system, these being connected to the originating member and the pointer by toothed arcs.
Patent GB-579166-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A9/54
Filed: 1942-11-23
Abstract: 579,166. Automatic guns. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Nov. 23, 1942, No. 16587. [Class 92 (i)] Relates to means for aligning the nose of a cartridge with the gun chamber as the base is being moved forwardly by a rammer such as that described in Specification 578,477. According to the present invention, the nose N first moves on to a yielding support in the form of a member 2 movable forwardly by rotation in the bearings of an axis pin 3 against the action of a torsion spring 7 to press the nose laterally against a reaction surface 1. The arrangement is such that the member 2 also moves downwardly against the compression of the spring 7 to cushion the nose of the round as it falls on to the upper concavity in the breech-block 5. A projection 13 on the block restores the parts when the breech-block moves to the closed position shown.
Patent GB-647860-A (GB)
Title: Improvements in or relating to drum-type weighing scales
Inventor: HOOKER ERIC ROBERT
IPC: G01G3/02
Filed: 1948-06-21
Abstract: 647,860. Weighing-apparatus. ELLIOTT BROS. (LONDON), Ltd. June 21, 1948, No. 16611. [Class 143] In a drum type weighing scale the weight indications are displayed on a pair of taper drums 3, 6 which are viewed by the assistant and customer respectively. The weight of the load on the platform 7 is transmitted through a frame 8 to a tumbler beam 9 .which is connected with the adjustable load counterbalancing spring 15 by arms 13, 14 rigid therewith, and the arm 14 is connected with the common drum shaft 5 by a rack and pinion 19, 20. Movement of the apparatus is damped by a dashpot 12 connected to the frame 8, and vertical movement of this frame is effected by a link 11 which, together with the tumbler beam 9, constitutes a parallelogram guide linkage.
Patent GB-1502674-A (GB)
Title: Microorganism culturing and testing apparatus
IPC: C12M1/34
Filed: 1975-04-22
Abstract: 1502674 Compositions for generating CO 2  or SO 2  MILES LABORATORIES Inc 22 April 1975 [25 April 1974(3)] 16645/75 Heading C 1A [Also in Divisions C6 and G1] Apparatus for culturing and identifying a microorganism in an anaerobic environment, e.g. Neisseria gonorrhoeae in an atomosphere of carbon dioxide, consists in a preferred embodiment of a polystyrene base 10, Fig. 1, having an upstanding rectangular wall 12 and a transverse wall 21 having an upper surface 22 below the level of the upper surface 19 of wall 12, and a polyethylene cover 17. The walls 12 and 21 define spaced rectangular wells 13 and 14 in which are disposed a nutrient gel layer or dry nutrient pad 15 and a gas-generating composition in the form of a pad or film 16 responsive to water vapour evolved by the reconstituted nutrient medium. In a modification the gasgenerating composition is carried by the cover. In other embodiments, a rectangular base has the nutrient pad and a gas generating pad or film attached to it, and the assembly is enclosed in a sealable plastics bag. The carbon-dioxide-generating composition includes, additional to the conventional acid and carbonate, a water-soluble polymeric substance and a water-insoluble polymeric substance in relative proportions between 1:9 and 9:1, preferably between 1:3 and 3:1, by weight. The water-insoluble polymer moderates the evolution of gas and also serves as a supporting matrix. Water-soluble polymeric substances: hydroxypropyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, polyacrylamide or polyvinyl alcohol. Water-insoluble polymeric substances: cellulose acetate, cellulose nitrate, cellulose acetate butyrate, ethyl cellulose, butyl cellulose, polybutadiene or polystyrene, also alginate or carrageen. Acids (conventional): citric, malic, fumaric, tartaric or maleic acid, or a corresponding anhydride. Carbonates (conventional): dibasic alkali metal carbonate, alkali metal bicarbonate or alkaline earth metal carbonate. Example 2 discloses the preparation of films or pads of effervescent composition in which acetone solutions of hydroxypropyl cellulose and cellulose acetate (ratios 3:1, 2:2, 1:3) containing citric acid and sodium bicarbonate were cast on glass plates or filter paper and the solvent allowed to evaporate. According to a modification, a steady, controlled humidity-activated sulphur dioxide source may be similarly provided by using an organic acid and an inorganic sulphite as the solid reactants in such a composition.
Patent GB-838636-A (GB)
Title: High speed recording apparatus
IPC: H04L17/20
Filed: 1958-05-23
Abstract: 838,636. Photographic type-composing apparatus. CREED & CO. Ltd. May 23, 1958 [May 28, 1957], No. 16662/58. Class 98(1) [Also in Group XVI] A selective printer controlled by signals received from keys or another source has type elements arranged in fixed position in a row extending in the direction in which the record material such as tape is fed. Delay means are provided so that when a character signal is received it is not effective until the point on the record material on which it is to be printed is opposite to the particular character element in the row. Type elements 1 are arranged in a row along a record tape 30 which is fed step-by-step by a mechanism 31 impression being effected through the medium of an ink ribbon 35 by actuation of a common bail 39 acting on those fingers 48, provided individually for each character, which has been actuated. Input signals are fed to a decoder of known type which produces a signal, corresponding to the selected character, which is fed to the second input of a pattern register of a series 58 and 83 controlling the operating finger 48 for that character. A signal is also sent by a wire 114 to the first input of all the pattern registers which are of a type described in Specification 663,574. The register 58 corresponding to the first character of a row has one gap in addition to the rest gap each successive register having an additional gap up to the register 83 corresponding to the last character. In operation the first signal received will be applied to the second input of a corresponding character register but a simultaneous pulse applied to the first input of all the registers via the wire 114 will not cause any stepping as none of the rest gaps have been fired. The signal on the wire 114 also through a delay circuit 116 actuates the bail 39 after any. appropriate fingers 48 have been set and by a longer delay circuit 117 will operate the tape feed one step after any printing has been completed. Subsequent signals will step all the register which have had their rest gaps discharged until the final gap is fired causing the actuation of a corresponding finger 48 to effect printing when the appropriate tape point is in position. Printing continues until an end of message signal is received via a wire 115 in the register 85, having at least as many stages as the last character register 83, and via wire 120 by a signal pulse generator 119 to start it. The generator 119 produces a signal on the wire 114 causing continued stepping of the registers and printing where appropriate until the register 85 discharges and via a wire 122 produces a signal to stop generator by which time all information in the character register will have been printed. In a modification, Fig. 4 (not shown), the recording is effected on a continuously moving photographic tape when lamps are ignited. Ignition of the lamps is effected by the signals derived from pattern registers constructed and operated in the same way as those used for actuating the printing elements. Specification 807,212 also is referred to.
Patent GB-807565-A (GB)
Title: Improvements in or relating to bed-settees
IPC: A47C17/04
Filed: 1956-05-30
Abstract: 807,565. Bed settees. BENSON, O. May 27, 1957 [May 30, 1956], No. 16688/56. Class 52(2) The end frames 10 of a bed-settee have slots 20, 21 to hold a detachable back frame 22 which is removed when the device is to serve as a bed and can be stowed in brackets on the rear sides of the end