baber/WOPTO huggingface dataset:
Patent GB-1245588-A (GB)
Title: Liquid dispensing system
Inventor: SAYER WILLIAM LESLIE
IPC: G01F11/04
Filed: 1968-04-11
Abstract: 1,245,588. Reciprocating hydraulic-pumps. GASKELL & CHAMBERS Ltd. April 8, 1969 [April 11, 1968], No.17504/68. Heading F1A. A single-stroke pneumatic-motor has a piston 11 with a rod 10 attached at its outer end to the piston of a beer pump (not shown), a pilot valve 13 being opened by the piston 11 at the end of each stroke to permit operation of a pneumaticallyactuated change-over valve 17 in response to a pressure pulse created by manual-operation of a remote push-button valve (not shown). Each of the valves 13 has axially-movable spring-loaded parts 14, 14a to control an exhaust port 8, an inlet 9 and an outlet 16, which is connected to one end of the valve 17, an O-ring 14c in the part 14a forming a seal between said port and inlet when the part 14 is depressed by the piston. Opening of the pushbutton valve admits compressed air to one end of the valve 17 (to effect actuation thereof) by way of the inlet and outlet of the valve 13 adjacent the piston, the inlet of the other valve 13 being shut by the outer end of the part 14a while the associated part 14 allows spent air at the other end of the valve 17 to escape through the port 8. Operation of the valve 17 causes compressed air to enter the motor through a port 21 or 22 and move the piston to the opposite end.
Patent GB-1408093-A (GB)
Title: Process for the manufacture of intermediate products for the production of electrically insulating mouldings
IPC: C08L83/00
Filed: 1973-04-12
Abstract: 1408093 Preparation of mica/silicone resin "pre-preg" sheets WACKER-CHEMIE GmbH 12 April 1973 [12 April 1972] 17600/73 Heading C3T [Also in Division B5] A method of producing micanite "pre-pregs" for the production of electrically insulating mouldings comprises the steps of (a) forming an aqueous slurry of mica and a heat curable siloxane resin which is solid at room temperature, (b) mechanically removing water from the slurry on a support to give a "solid" structure, (c) warming the structure thus obtained, whilst it is still on the support to a temperature between the softening point of the resin and 99 C., for 0-1-60 seconds and (a) drying the structure to remove residual water. The resin is used in an amount of 2-20% by weight based on the total of mica and resin, and may be either (a) a hydrolysis product of methyltrichlorosilane containing at least 0À1% of Sibound hydroxy groups, or (b) cohydrolysis product of methyltrichlorosilane mixed with up to 5 mole per cent of dimethyldichlorosilane or methyltrimethoxysilane and/or with up to 5 mole per cent of dimethyldiethoxysilane, the product containing at least 0À1% by weight to Si bound hydroxyl groups and from 0-3% by weight of Si bound alkoxy groups, or (c) an organopolysiloxane resin containing at least 0À1% by weight of Si-bound hydroxy groups, an average of 0À3-1À2 phenyl groups per Si atom, an average of 0À9-1À7 SiC bound organic groups per Si atom and up to 3% by weight of Si bound alkoxy groups. An inorganic lead compound (0À01-5% by weight of resin) may be used as a curing catalyst, examples being basic lead carbonate, lead carbonate, lead monoxide or lead dioxide. In conjunction with the lead compound there may be used 0À1 to 15% (by-weight of the resin) of a ketone or metal enolate having a boiling point at least as high as that of acetyl acetone and a melting point below the temperature used for processing the intermediate products.
Patent GB-319234-A (GB)
Title: Method of manufacturing guide blade rings for steam or gas turbines
IPC: B23P15/00
Filed: 1928-06-18
Abstract: 319,234. Fairweather, H. G. C., (Allmõnna Svenska Elektriska Aktiebolaget). June 18, 1928. Combined-flow type; bl'ades, fixing. - In a steam &c. turbine having radial-flow blades 1 and an axial-flow step 3, the blade ring 4 carrying the fixed blades 2 is made in separately cast segments each comprising one or more guide blades and a portion of the inner ring 5. The segments are shown in Fig. 3 as butting against one another along angular lines 6 - - 9, but these lines may be curved. The segments are secured to a supporting ring 11 by screws 10, annular ribs 13 on the ring engaging parallel-sided slots in the bases of the segments. Strengthening ribs 16 may be provided. The segments may be cast in aluminium bronze, red bronze, or stainless steel.
Patent GB-112291-A (GB)
Title: Improvements in and appertaining to Machines for Cutting Bevel Wheel Teeth.
Inventor: SUNDERLAND SAM
IPC: B23F1/06
Filed: 1916-12-08
Abstract: 112,291. Sunderland, S., and Midgley, A. M. Dec. 8, 1916. Gear-cutting. - In a machine for cutting bevel gears, the cutters 6 are mounted on slides 25<A>, 26<A> which reciprocate in frames 25, 26 pivoted at one end on a fixed pin 24 and engaging at the other end a formerplate 28. The frames . 25, 26 are relatively adjusted by a handwheel 46 on a screw engaging nuts on the plates. The cutter slides are reciprocated by a plate 22 provided w i t h a curved slot 23 engaged by pins on the slides and with a slot 20 engaged by a crank-pin on a disk 19 rotated by the pulley 12 through gear wheels. The blank 1 is mounted on a spindle in an adjustable pedestal 3 provided with the usual indexing mechanism and secured to a swivelling plate 4 bolted to a ring segment 5. The segment 5 is oscillated to move the blank into and out of engagement with the cutters by a shaft 7<A> carrying a worm 7 gearing with teeth on the segment. The shaft is rotated alternately in opposite directions, the reversal being effected by an adjustable stop on the segment 5 moving a bar E attached to a clutch 13<B> on the shaft when the tooth has been cut to the required depth. The former-plate 28 is fixed to a shaft 36 mounted in a movable bearing 37 and driven by a gear-wheel 35 loose on the shaft and clutched to a block 40 by a nut N. The wheel 35 is driven bv a wheel on a shaft 33 driven by the shaft 7<A> through gear-wheels 31, 32. The wheel 32 is loose on the shaft and has a slot engaged by a pin on a block 34 keyed on the shaft 33, so that the wheel 32 can make about half a revolution before the shaft 33 is rotated. When the shaft 7<A> is reversed. the former-plate is restored to its starting position.
Patent GB-119573-A (GB)
Title: Improvements in Concrete Ships.
Inventor: GOOLD LEWIS WILLIAM
IPC: B63B5/16
Filed: 1917-11-29
Abstract: 119,573. Goold, L. W., (San Francisco Shipbuilding Co.). Nov. 29, 1917. Concrete vessels.-Reimorced-conerete ships are provided, in the side walls, with bars 4, 5 which extend into the concrete deck and bottom. the extensions being oblique, as shown. The bars in the sides may also be disposed obliquely and cross each other, as shown, the oblique extensions in the deck and bottom ending alternately in two longitudinal lines.
Patent GB-439957-A (GB)
Title: Improvements in and relating to gas or vapour filled electric discharge apparatus
IPC: H01J17/04
Filed: 1934-06-14
Abstract: 439,957. Discharge devices. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. June 14, 1934, No. 17652. Convention date, Aug. 15, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 15, 1934.] [Class 39 (i)] An arc in a gas- or vapour-filled discharge device is extinguished by means of a number of control grids to which a negative potential is applied, the distance between the grids being equal to, or less than, the mesh width, or the distance between adjacent bars of each grid, and is also smaller than the length of the mean free path of the ions to ensure that the layers of ions around the grids overlap. The grids may consist of rods, wires or plates of round or oblong cross-section. The Specification as open to inspection under Sect. 91 states also that the grid 5, Fig. 3 (Cancelled), nearest the cathode may be heated by means of the discharge, or the cathode or by a member 6 connected to a source of continuous- or alternating-current and is coated with alkaline earth metal. A discharge between the grid 5 and the anode 2 may be prevented by means of a negative potential applied to the grid 4 through a potentiometer 8, a separate battery, or through a resistance through which flows the grid current. The heated grid may consist of a plate provided with rectangular apertures across which are stretched heating wires. The control potential may be applied between the cathode and a tapping on the potentiometer 8. This subject-matter does not appear in the Specification as accepted.
Patent GB-1382494-A (GB)
Title: Acylaminocephalosporanic acids and process for their manufacture
IPC: C07D501/26
Filed: 1972-04-17
Abstract: 1382494 Cephalosporins HOECHST AG 17 April 1972 [17 April 1971] 17743/72 Heading C2C Novel cephalosporins having the general Formula I and salts thereof, wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each represents a hydrogen atom or a C 2 -C 5  straight or branched alkyl radical, or R<SP>1</SP> and R<SP>2</SP> together may form an optionally substituted alkylene radical linking the adjacent nitrogens and the common carbon atom into a heterocyclic ring, A is an optionally substituted phenylene or thienylene radical and X is oxygen or a single bond, are prepared by reacting 7-aminocephalosporanic acid or a salt thereof with a carboxylic acid of general Formula II in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, A and X are as defined above, or an N-acylating functional derivative or salt thereof. The alkylene radical formed by R<SP>1</SP> and R<SP>2</SP> preferably contains 2-4 carbons and may be substituted by one or more C 1 -C 4  alkyl radicals. Such alkyl radicals may be branched or straight or may be cyclized to form a ring and in each case may be interrupted by a hetero atom (e.g. oxygen). The phenylene or thienylene group A may be substituted by one or more C 1 -C 4  alkyl or alkoxy radicals and/or halogen. The reaction is preferably performed using an aqueous or aqueous/organic solution at pH 6 to 9 of a base salt of the 7-aminocephalosporanic acid and adding in solid form an N-acylating derivative (e.g. the chloride, bromide, azide or p-nitrophenyl, p-nitrophenylthio or cyanmethyl ester) of the acid (II), preferably the acid chloride hydrochloride salt. The reaction mixture usually includes a base as an acid-binding agent. The product is isolated by precipitation on acidifying the reaction mixture, or by evaporation (lyophilization) of the solvents in which case the product is obtained in admixture with the salt of the acid-binding base and the by-product acid derived from the N-acylating derivative (e.g. alkali metal or amine chlorides or bromides). Such mixtures may be used therapeutically without further purification, or else may be purified by recrystallization from water. Pharmaceutical compositions having broad spectrum antibiotic activity comprises a novel cephalosporin of Formula I as defined above, either alone in a suitable pharmaceutical form such as a tablet, or together with a pharmaceutical carrier in the form of, e.g. tablets, capsules, oral suspensions and solutions or injectable suspensions or solutions. The invention includes a method for combating bacterial infections in commercially reared animals by administering the cephalosporins (I).
Patent GB-477090-A (GB)
Title: Improvements relating to umbrellas
IPC: A45B25/18
Filed: 1936-06-26
Abstract: 477,090. Umbrellas. SIERS, J. A. H. June 26, 1936, No: 17857. [Class 134] An umbrella comprises telescopic stick and ribs, an elastic cover secured to the stick and to the tips of the ribs, and means, which are operated upon movement of the runner, for positively extending and contracting the ribs. The stick comprises telescopic parts 5, 6, Fig. 1, and a leaf spring 9 is mounted in the section 6 and is provided with a lug 11 adapted to project through holes in the parts when extended. A sleeve 16 to which the ribs are pivoted is screwed to the section 5. The cover 34 is clamped to the sleeve by a plate 35 and screw 36, the inner end of which is provided with a conical part and a reduced neck 37. When the stick is collapsed a portion 10 of the spring 9 is pressed into resilient engagement with the neck 37 by means of the stud 101. The ribs 18 are provided with flanges 19, Fig. 2, to hold 'the ribs 20 to which a U-shaped plate 22 is secured by projections. Stretchers 21 are pivoted by rivets 23 to the plate and are U-shaped to house the ribs when the umbrella is collapsed. The other ends of the stretchers are curved and are pivoted to a runner 25, which is locked by means of the spring-biassed member 30, and the upward movement of which is limited by a collar 28. Links 31 are pivoted to the sleeve 16 and to the stretchers. The ribs are secured in the collapsed condition by spring clips 41 located on the rib parts 18 and provided with spring fingers 42 which are engaged by a flange on the handle 14. The links 31 are preferably always parallel to the ribs. In another form, the flanges of the stretchers face the stick to envelop the links 31. The cover may consist of rubberized fabric or of a rubber sheet and is provided at its edge with an inelastic, e.g. silk cord. Strips 47, Fig. 15, are vulcanized to the cover, bear against the inner side of the cord, and hold wire members 48, the bent ends 49 of which may be inserted into apertures in the ends of the ribs 20. A strap for securing the cover when furled is provided at one end with one part of a press fastener and at the other end is secured to a metal stud 53, Fig. 17, which is provided with the other part 54 of the press fastener and is secured within a rubber grommet. in the detachable cover. In a further form, a spring latch 61, Fig. 10, is mounted in a groove in a member 60 which is arranged within the stick part 6. A portion 63 of the latch is adapted to project through aligned apertures in the stick parts 5, 6 to maintain the stick in the collapsed or in the extended condition. To release the latch to expand the stick sections, a spring-biassed plunger 70 is pushed inwardly to engage the face 68 of the latch. Specification 477,376 is referred to.
Patent GB-1305177-A (GB)
IPC: F24H3/00
Filed: 1971-05-28
Abstract: 1305177 Ventilators AR-VENTILATION AB 28 May 1971 [24 June 1970] 17895/71 Heading F4V An air distribution unit for mounting in the ceiling of a room comprises a casing 10 subdivided by a partition 14 into a plenum chamber 16 and an air distributing chamber 18 which communicate via a gap between a tubular section 24 around an opening 26 in the partition 14 and a cap 22 which has a wall 20 surrounding and spaced from the section 24, which cap is displaceable towards and away from the partition 14. A screw 32 for adjusting the position of the cap 22 is accessible by removing an apertured plate 44. The plate 44 has a flange 48 with apertures 50 whose flow crosssection may be varied by altering the overlap between the flange 48 and a portion 52 of the partition 14. Sound insulating pads 54, 56 and an electrical resistance heating element 58 are provided.
Patent GB-251485-A (GB)
Title: Improvements in or relating to thermionic valve holders
IPC: H01R33/76
Filed: 1925-07-13
Abstract: 251,485. Dovey, W. H. July 13, 1925. Vacuum tubes.-A thermionic valve holder consists of an insulating base 1 with upstanding members 2 on the inner faces of which are mounted contact members 4 adapted to engage with the valve pins. The contacts may consist of the grooved heads of screws. The members 2 may be integral with or secured to the base. In a modification, the base is of annular shape, and the contacts consist of flat plates on the ends of screws, the grooves being formed in the ends of the plates.
Patent GB-1356294-A (GB)
Title: Well drilling device
IPC: E21B21/00
Filed: 1971-05-28
Abstract: 1356294 Boring earth &c INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 28 May 1971 [3 June 1970] 17973/71 Addition to 1219185 Heading E1F In a drilling bit according to Specification 1219185 the zone 5 having a pressure lower than the fluid flow at the inlet 1c is formed by an ejector 3 and a venturi 4. The fluid and cuttings rising through the venturi are whirled by vanes 20 to cause fluid and bulk of cuttings to discharge through orifices 6a whilst the purified fluid discharges through orifices 6b. Most of the purified fluid passes downwardly from the orifices 6b to the working face. In a modification the vanes are dispensed with and the fluid enters the ejector tangentially. A piston 23 (Fig. 3) may be fixed in the bit by pins 34 to permit conversion to a bit having centrifugal flow of fluid over the working face. To convert the flow a ball 36 is dropped down the drill string and the pressure of the fluid shears the pins and displaces the piston, the fluid flowing as indicated on the left hand side of Fig. 3. A fish may be provided for the ball and the pins may be replaced by a spring.
Patent GB-1127089-A (GB)
Title: Diaper-prefolded-film backed
IPC: A61F13/15
Filed: 1967-04-19
Abstract: 1,127,089. Diapers. JOHNSON & JOHNSON. 19 April, 1967 [9 May, 1966], No. 17974/67. Heading A3V. [Also in Division B5] A diaper folded as in Fig. 1 comprises an absorbent pad 12 enclosed between a water pervious cover sheet 10 and an absorbent bottom sheet 11 the underside of which is coated with a water impervious film 15 except at the end portions 20, 21 which are folded over and secured to the cover sheet 10. As described, the pad 12 is formed of wood pulp, the sheets 10, 11 of absorbent non woven materials of short cellulosic fibres and the film 15 formed by extrusion coating the sheet surface 11 with polyethylene, the side edges (19) of which are beaded to strengthen the waistband portions 20, 21 of the diaper. The folded sides of the diaper are anchored by adhesive spots 27.
Patent GB-1217161-A (GB)
Title: Improvements in vehicle ejection seats
Inventor: MARTIN JAMES
IPC: B64D25/10
Filed: 1967-03-17
Abstract: 1,217,161. Aircraft ejector seats. J. MARTIN. 19 Feb., 1968 [17 March, 1967; 19 April, 1967], Nos. 12777/67 and 18055/67. Heading B7G. An ejection seat (e.g. for aircraft) comprises a seat frame 1 on which is adjustably mounted a seat pan, an ejection gun 3 on the seat frame to at least initiate seat ejection, the ejection being assisted by at least one rocket motor (and may be a rocket motor pack 5) mounted on the seat and either pivoted to brackets 4 on the seat pan, or slidable fore and aft in slots in the brackets 4 so that the thrust line of the rocket motors is altered (e.g. by an angle α from C to AB) by means (e.g. a follower 12 on an arm 11 in a slot 16 between flanges 15 on a cam 14 on the seat frame) responsive to the relative movement between the seat frame and the seat pan. The thrust line of the rocket motors may be altered by rocking or sliding either the whole rocket pack, or only the nozzles 8. The cam 14 may be placed higher up on the seat frame, and be engaged by a follower 12 on a bell crank coupled by a link to the rear end of the rocket motor pack, Fig. 3 (not shown). Alternatively the cam 14 may be replaced by a rack (36), Fig. 4 (not shown), engaged by a pinion (35) on the seat pan the rotation of which is transmitted e.g. by a Bowden cable (37), to a screw jack (30) mounted under the rear end of the seat pan, and connected to the rear end of the rocket motor pack.
Patent GB-478626-A (GB)
Title: Improvements in the manufacture of asbestos-cement sheets
IPC: C04B28/02
Filed: 1937-06-30
Abstract: Porous asbestos-cement sheets are made from a slurry containing asbestos, cement, a powdered metal such as aluminium or zinc, and optionally lime, by forming a cylindrical laminated sheet on a paper making machine comprising a pair of calender rolls to which the mixture is fed by a cylindrical sieve-like member dipping in the slurry, slitting and flattening the sheet and during or after fabrication of the sheet, applying a reagent such as caustic soda which reacts with the metal to produce gas.  A catalyst such as calcium chloride may be added.  The mix may contain clay or diatomaceous earth and in the case of thick sheets or blocks the cement may be much reduced, the lime omitted, and glue or starch added.
Patent GB-653112-A (GB)
Title: Improvements in electromagnetic step by step switches
IPC: H01H67/16
Filed: 1948-07-07
Abstract: 653,112. Automatic exchange switches. GENERAL ELECTRIC CO., Ltd., and ROSE, W. R. July 7, 1948, No. 18230. Drawings to Specification. [Class 40 (iv)] A two co-ordinate step-by-step switch in which the vertical, rotary and release magnets are arranged with their axes mutually at right angles has the vertical magnet located on one side of a central frame web while the rotary and release magnets are located on the other side of the web. The release magnet is described in Specification 627,958, [Group XXXVII], and the vertical and rotary magnets are described in Specification 653,134, the adjusting screws of the magnets being accessible from the front of the switch. As shown, the switch comprises a cast main frame 1 supporting a bracket 2 fitted with a footstep bearing 3 for a switch shaft 4. The vertical magnet 11  is fastened to one side of a central frame web 10 by screws 9 and 13, screw 13 passing through an elongated adjusting hole in the framework 14 of the magnet. The rotary magnet 21 is positioned on the opposite side of the central web and is secured to a projecting boss 22 on the main frame by screws 33 and 24, the latter screw passing through an elongated adjusting hole in an extension of the magnet framework. The release magnet is positioned below the rotary magnet with its armature 29 acting upon a spring-loaded lever extension 31 of the release mechanism (not shown) through a screw 32.
Patent GB-477769-A (GB)
Title: Improvements relating to toy speed boats
IPC: A63H29/18
Filed: 1936-07-01
Abstract: 477,769. Toy boats. LOBB, J. F. July 1, 1936, No. 18238. [Class 132 (iii)] A toy speed-boat has propeller driving means comprising a coiled spring or elastic cord wound up through uni-directional gearing actuated by a spirally twisted rod rotated by uni-directional movement along it of a nut. In the construction shown in Fig. 2, the nut 21, incorporating a ratchet and pawl mechanism, is moved along the spirally twisted rod 5, by pulling out the U-member 23, 24, to rotate the rod and, through the gearing 6, 7 and one way clutch 9, 11, the spring 14 coiled about the rod 10 and connected through gearing 15, 16, 17, 17a to the propeller shaft 19 mounted in the tube 20, the gear wheel 15 being locked during winding of the spring by engagement with a pin on the movable hand lever 26. In the construction shown in Fig. 4, a rubber or elastic cord 32 is wound through nut 21, rod 5, and gearing 6, 7 as in the construction shown in Fig. 2, uni-directional movement being ensured by a spring pawl 36 engaging the gear wheel 7. The drive from the gear wheel 15 to the propeller shaft 19 takes place through the gear wheel 16, cranked shaft 34 and cranked end 35 of shaft 19. In both constructions, the boat is fitted with a removable deck 27 having a slot for the hand lever 26, a removable rudder 29 and steering arm 30, and a conning roof 31.
Patent GB-312519-A (GB)
Title: A combined hair-wave preserver & double-chin reducer
IPC: A45D8/40
Filed: 1928-06-23
Abstract: 312,519. Leyland, D. W. June 23, 1928. Caps.-A combined hair wave preserver and double chin reducer comprises a woven mesh cap, Fig. 1, open at the back and with a slotted rim for adjustment purposes. The adjustment is by tapes which also pass through a rubber band Fig. 3, having a double row of perforations at each end for fitting under the chin.
Patent GB-1284975-A (GB)
Title: Return flow boilers
IPC: F24H1/28
Filed: 1970-04-17
Abstract: 1284975 Return flow boiler GOTAVERKENS ANGTEKNISKA AB 17 April 1970 [23 April 1969] 18376/70 Heading F4A A return flow boiler comprises a flue tube 11 and return flue tubes 13, said flue tube having an outlet 23, into a return chamber 12, of smaller cross section than the main part of the flue tube. The outlet 23 may be provided with guide vanes (not shown).