baber/WOPTO huggingface dataset:
Patent GB-775164-A (GB)
Title: Method of making cylindrically curved printing plates
IPC: B41C1/18
Filed: 1955-07-18
Abstract: 775,164. Printing surfaces. BROOKS & PERKINS, Inc. July 18, 1955 [Aug. 2, 1954], No. 20689/55. Class 100(2) A method of making cylindrically curved printing plates comprises providing a flat magnesium or magnesium alloy plate 10 with a printing surface at one side, engaging the other side of the plate with a rigid convex cylindrical forming member 24 and pressing a yieldable rubber material 32 against the printing surface of the plate to cause the plate to conform to the forming member whilst maintaining the plate at a temperature between 300F. and 800F. The pressure applied is between 3,000 and 18,000 pounds per square inch when the temperature is 300F. Preferably a temperature of 450F.-650F. is employed together with a pressure of not less than 1,000 pounds per square inch. The member 24 is mounted on a platen 22 and the press includes a downwardly moving ram plate 26 having a convex rubber retainer 28 recessed thereto with a downwardly open recess 30 within which are provided the rubber slabs 32. The upper surface of the plate 10 may be covered prior to pressing with a thin aluminium coating of between 0.005 and 0.010 inches thick. The aluminium may be in the form of foil, comminuted particles, a powder spray, or an atomized melted spray. The aluminium is removed after pressing by treatment of the plate to a caustic bath of sodium hydroxide containing between 1 per cent and 20 per cent by weight of the caustic.
Patent GB-634681-A (GB)
Title: Improvements in or relating to collapsible boxes
IPC: B65D6/00
Filed: 1947-07-31
Abstract: 634,681. Boxes. FOORD, A. J. July 31, 1947, No. 20820. [Class 18] A knock-down . box comprises top and bottom panels formed into trays by battens along their edges, the battens holding between them the box sides and ends, vertical battens being secured at the box corners, and the whole held closed by metal straps. The longitudinal battens 6 of the top and bottom panels are grooved to receive the sides 1, and notched to accommodate the vertical battens 3 secured to the ends. The battens 6 may be cut as at 14, 16 to receive removable metal straps 12, the ends 15 of which are bent to hook under the battens 6. The lid and bottom form a shallow box which contains the sides and ends in a knocked-down condition. In lieu of the straps 12, all-round metal bands may be used, battens being inserted between the straps and the box sides for strength. The box ends may be reinforced by metal strips 11.
Patent GB-757570-A (GB)
Title: Improvements in, or relating to, washing machines
IPC: D06F39/00
Filed: 1953-07-21
Abstract: 757,570. Belt gearing. ALUMINIUM BRONZE CO., Ltd., and CLEIFF, J. A. July 21, 1954 [July 21, 1953], No. 20892/54. Divided out of 757,503 [Group VIII]. Class 80(1) [Also in Group VIII] In a washing machine (see Group VIII) an endless belt 8 driven from a motor 12 by a pulley 9 and driving a pulley 10 can also drive a pulley 7 if the belt 8 is displaced against it by means of a roller 14 which is pivoted on a bell-crank lever with arms 15 and 17 and is manually displaceable by means of a Bowden cable 18. When the cable 18 is released the weight of the roller 14 and the reaction of the belt swings the roller out of engagement.
Patent GB-1533199-A (GB)
Title: Elastomer blends and process for preparing them
IPC: C08L33/00
Filed: 1977-05-18
Abstract: 1533199 High green strength elastomer blends GOODYEAR TIRE & RUBBER CO 18 May 1977 [21 June 1976] 20920/77 Heading C3M High green strength elastomer blends comprise (1) 1-99% natural or synthetic cis-1,4- polyisoprene and (2) 99-1% of a synthetic elastomer containing units of an ionogenic monomer where X 1  and X 2  are H, CH 3 , COOH or halogen; R 1  is H, C 1-10  alkyl, -(CH 2 ) n COOH where n is 0-4 or halogen; m is 0-4 and A is OH, NH 2  or OM where M is a Group 1A, 2A, 3A or 2B metal; the elastomer being derived from a C 4-10  diene with or without a styrene, acrylonitrile or C 2-14  olefin and containing 8-95 meq. -CO-A per 100 parts by weight. In examples the synthetic elastomer is obtained by copolymerizing butadiene, styrene and methacrylic acid.
Patent GB-206222-A (GB)
Title: An improved appliance for straining seat webbing and the like
IPC: B68G15/00
Filed: 1922-08-01
Abstract: 206,222. French, G. F. Aug. 1, 1922. Band strainers.-In a device for stretching seat and like webbing of the kind comprising a lever member provided with a transverse clamping plate carried by pivoted side arms, the clamping plate is adapted to lie flat against the lever when not in use and at an angle thereto when in operative position. The clamping plate d is carried by arms c pivoted to the sides of the lever a. The end of the webbing e is passed over the clamping plate and between it and the lever, so that an angular movement of the lever about the edge of the chair causes the tension of the web on the upper edges of the clamping plate to nip the end of the webbing between the lower edge of the clamping plate and the flat face of the lever. The nipping edge of the plate d may have teeth or serrations f, and the clamping plate may be formed integral with the arms c, or it may be carried by the cranked ends of a wire or rod secured to the lever.
Patent GB-1134919-A (GB)
Title: Process for producing new 4-nitroimidazole ethers
IPC: C07D233/92
Filed: 1967-05-05
Abstract: 1,134,919. Nitroimidazole derivatives. KRKA TOVARNA ZDRAVIL. 5 May, 1967 [7 May, 1966], No. 20989/67. Heading C2C. 4-Nitroimidazoles of the formula wherein R is a hydrogen atom or an alkyl or aryl radical, A is a bivalent aliphatic hydrocarbon radical, B is a bivalent aliphatic or aromatic hydrocarbon radical and X is a hydrogen or halogen atom or a nitro, sulphuric acid, sulphonic acid or hydroxyl group, are obtained by condensing compounds of the formula Z-A-O-B-X wherein Z is a reactive ester radical with the appropriate 4(5)-nitroimidazoles. The compounds have chemotherapeutic properties.
Patent GB-259718-A (GB)
Title: Improvements in or relating to controlling devices for the wings of aeroplanes
IPC: B64C3/52
Filed: 1925-08-22
Abstract: 259,718. Tips, E. O. Aug. 22, 1925. Steering and balancing.-The ailerons of an aeroplane or similar aircraft are depressed by positive means and are interconnected by a balance wire having an elastic connection w in its length which is of sufficient tension to transmit the pull from one aileron to another when they are moved in opposite directions but is capable of yielding or taking up slack in the balance wire to enable both ailerons to be depressed or raised simultaneously for varying the camber of the planes. The ailerons are moved in opposite directions by cables connected to a lever on a rock shaft a moved by a lever c. These cables are passed over pulleys g, g* carried by nuts on right and left hand screws d, d<*> on a transverse shaft which is turned to move both ailerons simultaneously in the same direction. The invention is applicable also to machines having trailing flaps movable concurrently with or independently of one another in addition to ailerons, as described in Specifications 135,520, 135,521, 135,522, 190,774, 216,594, 217,974 and 232,693.
Patent GB-1246960-A (GB)
Title: Apparatus for terminating flexible flat cable
Inventor: COOTES HAROLD EDWIN
IPC: H01R43/01
Filed: 1970-05-01
Abstract: 1,246,960. Making electrical connections; jointing by stamping; shearing. AMP Inc. 1 May, 1970 [21 May, 1969], No. 21172/70. Addition to 1,225,326. Headings B3A, B3Q and B3W. In apparatus for connecting terminals to wires of a substantially flat cable 2, wherein spaced apart parallel wires are arranged side-byside between layers of insulating material as described and claimed in Specification 1,225,326, there is provided modified means 138 for holding the cable, which includes a plate 140, means for clamping the cable to the plate, and a block 192 rigidly attached to the plate, the block being adjustably mounted on a movable member 142 for movement therewith. The cable 2 is located against a positioning bar 204 and clamped by a block 212 mounted on a pivoted bar 216, which is secured by a hasp 224 and latch block 226 on an extension 228 of the plate 140. The cable is precisely positioned by adjusting the position of the block 192 by rotation of a screw 200 to bring the central conductor of the cable over a light hole (206) in an index block (208), Figs. 18, 14, respectively (not shown). A handle 180 is lowered to raise a feed finger 150 clear of rack teeth (152) formed in the member 142, which is then driven leftwardly to bring the first wire of the cable to the crimping station, Fig. 13 (not shown). The travel of the rack is adjusted to suit the cable width by raising one of a number of stops 230, which locate in a recess 234 in the movable member 142 and block 192. As the member 142 is moved, the undersurface of the plate 140 engages the plunger 190 of a switch 180 to initiate the cable terminating operation.
Patent GB-1002356-A (GB)
Title: A method of and apparatus for producing thermoplastic sheet material
IPC: B29C43/24
Filed: 1962-06-01
Abstract: 1,002,356. Producing stretchable sheets. KLEINEWEFERS G.m.b.H., [trading as JOH. KLEINEWEFERS SOHNE]. June 1, 1962 [July 11, 1961], No. 21175/62. Headings B5A and B5B. Homogeneous stretchable sheet material is formed from a dry blend of hard thermoplastic resins by preplasticizing the dry blend in an extruder 1, extruding the mixture from a slotshaped die 2 in the form of a sheet and feeding the sheet between a pair of heated calender rolls 3, 4, the speed of the latter being adjustable relative to the extrusion speed to enable the material to form a revolving slug in the nip of the rolls and thereby fully plasticize the sheet. If desired, a third heated calendering roll may be incorporated.
Patent GB-484190-A (GB)
Title: Improvements in the manufacture of staple fibre products from continuous filaments
IPC: D01G1/10
Filed: 1936-07-31
Abstract: 484,190. Forming staple fibre products from continuous filaments. DREYFUS, H., and POOL, W. July 31, 1936, No. 21210. [Class 120 (iii)] A substantially twistless bundle of associated continuous filaments is converted into a staple fibre product by feeding it forward, separating the filaments at the end of the bundle from one another, cutting from them predetermined lengths successively to yield groups of fibres, and while the cut fibres are still separate, assembling the groups so that forward ends of the fibres of each group overlap the rearward ends of those of the preceding group, and then compacting the fibres into a continuous staple fibre product. In the apparatus described a bundle of filaments 8, Fig. 1, is drawn by nip rollers 10 from a supply bobbin 9 through guides 11 and a gate tension device 12 and is fed into a hole 14, Fig. 6, and out through a flared orifice 15 of an ejector nozzle fed with compressed air from a conduit 17. The air jet as seen from above has three diverging passages 19, Fig. 7, in order to spread the blast and cause the filaments to issue in a spread fan shape. The separated end portions of the filaments on leaving the orifice extend across an endless permeable band 20 which is driven over a suction conduit 21 by a roller 22 and kept taut by a spring-loaded idler 23. Perforations 27 in the conduit cause the free ends of the filaments to be held as shown in Fig. 1. Simultaneously the air blast to the nozzle is momentarily interrupted by a spring- loaded valve 50 and a forked deflecting member 30 descends upon the filaments and presses them into contact with the teeth of a " hair-clipper " type cutting device 31 placed diagonally across the path of the filaments. The cutter is then operated to sever the filaments and form fibres, the rear ends of which are sucked on to the band 20 by air currents passing into the perforations 28, the currents being concentrated on the cutter by a shield 29. On operation of the cutter, a deflector member 32 is moved temporarily to the right, as shown in Fig. 3, to disengage the cut ends of the filaments from the blades of the cutter. As the deflector moves back to its normal position, the air blast is re-started. The rate of movement of the band 20 and the rate of feed of the filaments are so adjusted that the groups of cut fibres overlap so as to form a continuous assembly 33, Fig. 4, which is fed forward to rubbing bands 34 driven by rollers 35. The lower rubbing band is reciprocated transversely by crank mechanism 36 so as to compact the assembly into a substantially cylindrical staple fibre product 37 which is twisted into a yarn 38 and wound on a bobbin 39 by a ring spinning device 40. Specifications 410,805 and 484,191 are referred to.
Patent GB-1107936-A (GB)
Title: Copolymers of substituted norbornenes and olefins and process for producing the same
Inventor: NAKAGUCHI KOHEI
IPC: C08F210/00
Filed: 1966-05-13
Abstract: A copolymer of (i) substituted norbornenes having the formula <FORM:1107936/C3/1> wherein X1, X2, X3 and X4 are each halogen, hydrogen or an alkyl, aryl, aralkyl, alkaryl or cycloalkyl hydrocarbon group, and at least one of them is a halogen or a said hydrocarbon group, and R1, R2, R3, R4, R5 and R6 are each hydrogen, a hydrocarbon group or halogen; (ii) ethylene; and (iii) one or more a -olefines having the formula CH2 = CHR7, where R7 is a hydrocarbon group having 1 to 20 carbon atoms. The copolymer may be prepared by copolymerizing the monomers in the presence of a catalyst system containing (i) an organoaluminium composition having the formula AIR8nX53- n, where R8 is a hydrocarbon group having 1 to 20 carbon atoms, X5 is a halogen and n is a number, not necessarily an integer, of 1 to 3; and (ii) a vanadium compound.  Preferred substituted norbornenes are 5-chloro - norbornene - 2, 5 - bromo - norbornene - 2, 5,5,6 - trichloro - norbornene - 2, 5 - methyl - norbornene - 2, 5 - ethyl - norbornene - 2 and 5 - phenyl - norbornene - 2.  Preferred a -olefines are propylene and butene-1.  Preferred aluminium compounds are diethylaluminium chloride, ethylaluminium sesquichloride and ethylaluminium dichloride.  Preferred vanadium compounds are vanadium halides, vanadium oxyhalides, orthovanadates, halo-ortho-vanadates, vanadium acetylacetonate and vanadium halo-acetylacetonates.  In examples vanadyl trichloride, vanadium triacetylacetonate, vanadium tetrachloride and ethyl orthovanadate are used. Solvents used are n-heptane, a mixed solvent of heptane fraction containing paraffinic hydrocarbon, naphthenic hydrocarbon and aromatic hydrocarbon, and toluene.  Methanol is used to stop the reaction.  The polymers are washed with hydrochloric acid-methanol mixture, with water and then deposited in methanol.  The polymers may be cured with a composition of (Ex. 1): zinc oxide, HAF Black, sulphur, tetramethylthiuram disulphide and mercaptobenzothiazole or (Ex. 4): dicumyl peroxide, quinone dioxime, Pb3O4, HAF Black. Example 4 contains a comparative example using dicyclopentadiene in place of the 5-chloro-norbornene-2. In Examples 6 and 20 lists of other norbornenes are given.  Example 8 uses trihexyl aluminium.  In Example 10 the catalyst system additionally contains benzenesulphonyl chloride.
Patent GB-206564-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D67/02
Filed: 1922-08-03
Abstract: 206,564. Stoker, A. W. Aug. 3, 1922. Gearing for stopping and starting machinery.- In the machine for seaming the ends of metal cans &c. described in Specification 7929/02, [Class 66, Hollow-ware], there is provided a fixed brake surface with which the movable member of the automatic friction clutch contacts on disengagement. The shaft a of the machine is driven from a shaft h through gears g, f. The loosely-mounted gear f is located on its shaft by a collar and the worm j, which forms part of the means for periodically moving a clutch disc e, slidably keyed on the shaft a, into and out of contact with a flat face d on the wheel f. In its disengaged position, the disc e is braked by a leather or other facing l on a horseshoe-shaped member m secured to the base-plate c.
Patent GB-315278-A (GB)
Title: Improvements in or relating to the manufacture of cellulose derivatives
IPC: C08B11/00
Filed: 1929-07-10
Abstract: 315,278. British Celanese, Ltd., (Assignees of Miles, G. 11'.). July 10, 1928, [Convention date]. Cellulose ethers.-For the manufacture of cellulose ethers, cellulosic material is treated with the alkylating or aralkylating agent, and thereafter the alkali, either in the solid state or as a concentrated aqueous or alcoholic solution, is added to the mixture in order to produce the desired etherification. All the etherifying agent may be added in the first stage, or a part only may be added in this stage and the remainder added either all at once or in portions after the bulk of the alkali has been added. The first. stage of the process may occupy several hours at 0-45‹ C., and a small quantity of alkali carbonate, hydroxide, &c. mav be added to avoid tendering of the material. The reaction mixture during the etherification stage may be maintained at a temperature of 30-60‹ C. The starting material may be linters, wood pulp or reconstituted cellulose as obtained from viscose. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of aryl esters as the etherifying agent, and to use of 3 to 10 molecular proportions of the etherifying agent to one molecular proportion of cellulose (C6H10O5). This subject-matter does not appear in the Specification as accepted.
Patent GB-1262505-A (GB)
Title: Speaker system and electrostatic speaker
Inventor: BOBB LLOYD JOSEPH
IPC: H04R19/02
Filed: 1969-04-25
Abstract: 1,262,505. Electrostatic speakers. L. J. BOBB, and C. C. POND. 25 April, 1969 [29 April, 1968], No. 21291/69. Heading H4J. An electrostatic loud-speaker comprises two spaced parallel, perforated substantially planar electrodes (preferably divided into five sections 12) and a pair of spaced, parallel, substantially planar, coextensive membranes 8 disposed between the electrodes and acoustically coupled together by air in between. In operation the combination of a conductive coating on one membrane 8 and the adjacent perforated electrode is electrically in push-pull with the combination of a conductive coating on the other membrane 8 and electrode. The two membranes 8 of polyester are coated with aluminium on their confronting faces and are clamped together between two frames 5 which press their coatings into contact with perforated aluminium strips 9. The membranes 8 are omni-directionally stretched and the perforations in the strips 9 prevent slipping. The frames 5 have mullions 16 which define twenty-five windows. Each set of five perforated metal strips 12 is sandwiched between damping gaskets 14, 15, also windowed, and there is a peripheral gasket 11 of blotting paper between each gasket 15 and membrane 8. Additional damping material 17 is provided in at least the peripheral windows. The air space between the membranes 8 is air vented by a gap 10 between adjacent strips 9. The perforated electrodes are connected to opposite ends of the secondary winding 18S (Fig. 4) of a transformer. The conductive coatings on the membranes are connected to the centre tap through a polarizing voltage source Ep and a resistor 20 which keeps the polarizing voltage charge substantially constant. Connection to the conductive coatings is through a tab 9a on one of the strips 9. The outermost pairs of sections 12 are connected through resistors 24, 25 which attenuate intermediate and higher frequencies, the intermediate pairs of sections 12 are connected through resistors 24 which attenuate intermediate frequencies and the innermost sections 12 are connected without frequency attenuation.
Patent GB-934653-A (GB)
Title: Improvements in or relating to gas-blast electric circuit-breakers
Inventor: GONEK STANISLAW MIECZYSLAW
IPC: H01H33/56
Filed: 1960-06-17
Abstract: 934,653. Gas blast switches. ENGLISH ELECTRIC CO. Ltd. June 9, 1961 [June 17, 1960], No. 21347/60. Class 38 (5). In a circuit-breaker a small continuous supply of gas is fed to the circuit-breaker from a gas receiver supplied from a compressor via a differential valve, a gas drier being arranged in parallel with the valve. The compressor 11 supplies receivers 12 which are connected to the breaker receiver 21 via the differential valve 15 and a reducing valve 18, the drier 16 being arranged across valve 15. The receiver 21 supplies a small continuous bleed to the breaker 22 over a reducing valve 26 so as to reduce condensation in the breaker. Extinguishing blasts from receiver 21 go direct to the breaker, and the receiver 21 is replenished by opening of the valve 15 at a predetermined pressure differential, this replenishing gas bypassing the drier 16.
Patent GB-779762-A (GB)
Title: Improvements in and relating to coffee and milk urns and the like
Inventor: YOUNG ARTHUR
IPC: A47J31/50
Filed: 1954-07-22
Abstract: 779,762. Coffee &c. urns. STOTT & CO. (ENGINEERS), Ltd., J. Sept. 22, 1955 [July 22, 1954], No. 21367/54. Class 129 A beverage urn or the like comprises an outer housing 10, 11 and an inner replaceable container 12, the inner container 12 having an externally corrugated outlet 13 connected to a tap-controlled draw-off assembly 18, 19 in the outer housing 10, by means of a complementary resilient member 21 in said assembly having a force fit around said corrugations. The resilient member 21 is housed in a brass or gunmetal housing 15 having a retaining flange 20. The housing 10, 11 may be of stainless steel having a lower compartment containing heating means (not shown) and an upper compartment 11 for holding hot water around the container 12 which may be of heat-resisting glass. Removable lids are provided for the container and the outer housing. The corrugations may be in the form of a helical groove.
Patent GB-939751-A (GB)
Title: Improvements in or relating to door hinges
IPC: E05D7/10
Filed: 1962-06-04
Abstract: 939,751. Hinges. C. ROSSETTI. June 4, 1962 [June 8, 1961], No. 21373/62. Class 65 (2). A hinge comprises two generally cup-shaped casings 5, 6, stamped out of metal and connected by a pivot pin 7, each easing having a securing rod 3, 4, which may be screw-threaded. The pin 7 may be made of metal or of a plastic such as a polyamide, and can be clamped in one of the casings. Plastic liners may be inserted in the casings, and one of the liners may be integral with the pivot pin. In a modified construction the hinge consists of a central male portion and two female portions disposed one on either side of it.
Patent GB-149283-A (GB)
Title: Improvements in variable electrical controlling elements especially suitable for usein wireless telegraphy
IPC: H01F21/00
Filed: 1920-07-15
Abstract: 149,283. Marconi's Wireless Telegraph Co., (Assignees of Goldsmith, A. N.). July 31, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Regulating transformers.-The inductance of a coil, or the effective inductance, mutual inductance, or both, of a pair of coupling coils are varied by one or more shields of conducting-material forming short-circuited secondaries and movable relatively to the coil or coils. The shields may take the form of copper cylinders movable axially with respect to the coils, or, they may take the form of disks pivotally mounted within the coil. In the arrangement shown in Fig. 17, the coupling between coils 8, 9 in the antenna circuit and in a receiver circuit is varied by means of shields 10, 11, 12, mounted on a shaft 14, which may be connected by a belt or chain 16 to a shaft w carrying a shield v for varying the inductance of a coil T in the antenna circuit. A similar arrangement may be used for connecting an oscillator of the thermionic valve or quenched-spark type to an antenna, the movement of the shields serving both to vary the coupling and to tune the circuits.