baber/WOPTO huggingface dataset:
Patent GB-723979-A (GB)
Title: Improvements in and relating to directional aerials
IPC: H01Q19/24
Filed: 1951-11-07
Abstract: 723,979. Directive radio systems. ANTIFERENCE, Ltd., and BEST, N. M. Nov. 5, 1952 [Nov. 7, 1951], No. 26113/51. Class 40(7). A directional aerial system comprises four or six similar elements radiating with equi-angular spacing from a common centre in a common plane. Where there are four elements switch means are provided for selecting any two adjacent elements to connect to a transducer as a dipole and for connecting a reactive impedance between the remaining two elements so that these form a director or reflector. Where six elements are used means for selecting any two co-linear elements to form the dipole are provided which at the same time connects an inductive impedance between one adjacent pair of the remaining elements and a capacitative impedance between the other pair to form an array of director, dipole and reflector. Movement of the selecting means changes the direction of maximum sensitivity of the aerial system, an operation which may be done from a position remote from the aerial. If the actual selecting means is distant from the aerial elements switched auxiliary reactances are necessary to prevent interaction between the various feeders and so the selector switch is preferably mounted in a junction-box supporting the inner ends of the elements as shown diagrammatically in Fig. 4. Here the end of the elements 40, 41, 42, 43, radiating in a common horizontal plane from the insulating junction box 44 are extended to contact studs inside the box which co-operate with rotary switch member 53 carrying contacts 49, 50 associated with feeder 54 and contacts 51, 52 associated with impedance 55. A stepping switch or Selsyn motor may be used to move the switch and this can be controlled from a position adjacent the transceiver. Fig. 8 shows diagrammatically the arrangement of a similar junction-box switch where six elements are used. The elements need not be simple rods but may be folded dipole units, one end of each unit being led to a common point and the other to the selector switch. V-shaped or conical assemblies can also be used as elements. Aerial systems according to the invention may be stacked coaxially so as to lie in parallel planes. Specification 666,285 is referred to.
Patent GB-1139946-A (GB)
Title: Improvements in or relating to duplicating pad assemblies
Inventor: FISCHER RAYMOND PHILIP
IPC: B41L1/24
Filed: 1966-06-13
Abstract: 1,139,946. Manifolding pads. COMBINED PAPER MILLS Inc. 13 June, 1966, No. 26154/66. Heading B6A. A duplicating pad assembly comprises a pad 12 of paper sheets contained in a cover having a back leaf 14 on which the pad is mounted, and a hard front leaf 18 with a thin facing 28 of absorbent material hinged to the leaf 14, the leaf 18 being insertable below a set of sheets, i.e. an original and a copy or copy sheets, so that the impression on the set of sheets is not transferred to underlying sheets. The pad 12 is made up of such sets of sheets which may have carbon coatings on their undersurfaces or may have duplicating material in the body of the paper. The pad 12 may be permanently fastened to the leaf 14 or may have a tongue 36 insertable through a slot 38 into the leaf 14. The sheets may have lines of perforations near their bound edges for easy detachment. A third layer 28 of sponge rubber is provided on the leaf 18 to prevent damage to underlying sheets and to prevent slipping of the leaf. A hinge strip 22 connecting the leaves 14, 18 may be joined thereto by thinned parts 24, 26 or by rings. Another leaf 16 which lies on top of the leaf 18 in the closed position of the assembly is secured to the leaf 14 in a similar manner to the leaf 18.
Patent GB-1033518-A (GB)
Title: Gelatine layers containing hardeners
Inventor: JURGENS MANFRED
IPC: G03C1/30
Filed: 1964-06-24
Abstract: Gelatine layers, especially photographic emulsions, are hardened by treatment with triglycidyl isocyanurate having the formula <FORM:1033518/C3/1>
Patent GB-1385945-A (GB)
Title: Methods of manufacturing magnetic transducing heads and parts thereof
IPC: G11B5/455
Filed: 1972-06-06
Abstract: 1385945 Manufacturing magnetic transducers INTERNATIONAL COMPUTERS Ltd 4 June 1973 [6 June 1972] 26230/72 Heading G5R Polepiece units 11 for flying magnetic heads are made by surrounding two spaced elongate members 2, 3 of ferrite by non-magnetic material 7 and slicing the assembly across the ferrite members. The members 2, 3 are themselves formed by slicing spaced, glass-bonded ferrite plates and are mounted on a member 5. One face 12 of each unit is ground to form an air bearing face, while material is removed from the rear of the gap 4 to define the pole tip depth; this may also be defined by drilling holes in the members 2, 3 prior to slicing, Fig. 13 (not shown). The members 5, 7 are of glass ceramic and bonded to the ferrite by glass. Several gaps, for the same track (Fig. 12, not shown) or separate tracks, may be provided. Each head is completed by a yoke assembly, Fig. 8, including a C-shaped ferrite yoke 16 to be bonded to the members 2, 3. The yoke 16 is first encapsulated, together with its coil 17, a terminal block 18 and portions 20 of a resilient head support member 19 of, e.g. beryllium copper, in an epoxy synthetic resin loaded with glass fibre. The polepiece unit 11 and yoke assembly are aligned and bonded by an epoxy synthetic resin. Prior to bonding, the polepiece unit and yoke assembly are separately tested: the polepiece unit is temporarily secured to an alreadytested, satisfactory yoke assembly and its aerodynamic and magnetic characteristics measured using a record 24. The yoke assembly is similarly temporarily secured to a satisfactory polepiece unit and its transducing characteristics tested and the mechanical characteristics of the support member 19 checked.
Patent GB-338246-A (GB)
Title: An automatic safety device for preventing the hydraulically operated breech of a gun from being opened prematurely
IPC: F41A5/32
Filed: 1929-08-29
Abstract: 338,246. Little, H. A. Aug. 29, 1929. Ordnance breech mechanism. - To render inoperative the operating machine of an hydraulic breech mechanism after the breech is closed and until recoil occurs as a result of a discharge, a mechanical catch 24 is provided in combination with a release gear 15, 30, and an intercepting valve 4. before the gun is fired, a rod 31 is held forward against a spring 32, and a tappet 30 thereon occupies the position shown in dot-anddash lines at B. When recoil takes place, the spring 32 draws the tappet back over and behind a roller 17 on a lever 15 pivoted at 14 on a crosshead 13. On the return stroke after the recoil, the lever 15 is swung over to the position B and a cam 16 on the lever bears on a roller 26 and pushes the spring bolt 24 away from a shoulder 23 on the crosshead 13. The pressure of the bolt 24 on the cam 16 then holds the lever 15 in the position B. When pressure is supplied for opening the breech, this pressure gets access through a port 11 over a piston 8 connected by a rod 5 to the crosshead 13. This crosshead being now released by the bolt 24, it is depressed with the rod 5 and piston 8 by the pressure on the piston, and a shoulder on the rod 5 depresses the valve 4 against a spring 10 away from its seat. Pressure from the control valve may now pass from pipe 2 through valve 4 to pipe 3 and thence to the opening mechanism of the breech. The down stroke of the crosshead also causes a projection 18 on the lever 15 to strike against a fixed stop 36 whereby the lever 15 is rocked back to its previous position where it is lightly held by a yielding spring catch 29. When pressure is supplied for closing the breech, this pressure is admitted by a port 12 beneath the piston 8, and this piston with the rod 5 and crosshead 13 is raised back and again held up by the catch 24. The valve 4 again closes and, while closed, prevents any access of pressure to the opening mechanism of the breech. For practice purposes, the catch 24 may be put out of action by the insertion of a fork 33 between the head 24<A> of the catch and the frame of the apparatus.
Patent GB-818410-A (GB)
Title: Improvements relating to the manufacture of synthetic linear polyamides
IPC: C08K5/13
Filed: 1957-08-20
Abstract: In Example 4, a copper cable coated with polyethylene is coated with a polyamide by drawing it through a spray head charged with chips of a polyamide made from hexamethylene diammonium sebacate and e -caprolactam, with which has been incorporated 5-n-pentadecyl resorcinol as a softening agent.  In Example 5, metallic bases are coated by spray extrusion with a poly-e -caprolactam containing 5-n-pentadecyl resorcinol.ALSO:Synthetic linear polyamides are softened by incorporating therein 3 to 30 per cent by weight based on the polyamide of 3-n-pentadecylphenol and/or 5-n-pentadecyl resorcinol. Specified polyamides are poly-caprolactam, polyoenantholactam, polycaprylic acid lactam and polyamides derived from the corresponding amino acids, poly-o -aminoundecanoic acid, polyhexa- and deca-methylene diammonium adipate and co-polyamides made from e -caprolactam and hexamethylene diammonium terephthalate, In the examples: (1) a mixture of n-pentadecyl phenol and 5-n-pentadecyl resorcinol is added to e -caprolactam and the resultant mixture heated to 250 DEG  C. in an autoclave, the product being passed through a nozzle to solidify as a filament in a water bath; (2) molten 3-n-pentadecylphenol is mixed with a melt of polyhexamethylene diammonium adipate, the product being granulated and moulded; (3) powdered 3-n-pentadecyl resorcinol is mixed with granulated poly-o -amino-undecanoic acid and pressed through a nozzle at elevated temperature to form a hose; (4) a granulated polyamide made from e -caprolactam and hexamethylene diammonium sebacate is mixed with a methanolic solution of 5-n-pentadecyl resorcinol, the product being used for coating copper cables previously coated with polyethylene; (5) poly-e -caprolactam is heated with a methanolic solution of 5-n-pentadecyl-resosinol to form a powder; (6) a copolyamide made from hexamethylene diammonium adipate and e -caprolactam is mixed with hydrocardanol (a mixture of 3-n-pentadecyl phenol and 5-n-pentadecyl resorcinol); and (7) hexamethylene diammonium terephthalate and caprolactam are polymerized in the presence of hydro cardanol and extruded into filaments which are solidified in water.
Patent GB-1496739-A (GB)
Title: Process and apparatus for producing resin printing plates
IPC: G03F7/20
Filed: 1975-06-20
Abstract: 1496739 Imagewise hardening SUMITOMO CHEMICAL CO Ltd 20 June 1975 [21 June 1974] 26295/75 Heading G2A Apparatus for imagewise hardening a liquid resin layer 8 comprises a platen support 1, a transparent platen 3, an endless belt 10, means for relatively moving together platen support 1 and belt 10, and illumination means (not shown) for imagewise exposing a liquid resin layer 8 through a negative original film 4 while layer 8 is stationary below belt 10. The liquid resin is applied to a transparent film cover 5 (which is held in contact with platen support 1 by the application of vacuum through a gap 13 around platen 3 and film 4) between a pair of depth determining members 15. When platen support 1 is moved (on rails 2) under belt 10, a developed image support member 7 (which is held by a guide-plate 11) is lowered into contact with the liquid resin by means of spring-biased rollers 6 and 9 and additional rollers 12. Belt 10 may be permeable and reduced pressure applied in the space enclosed by the belt to prevent sagging of the support. Platen support 1 moves beween limit switches 16 and 17.
Patent GB-966843-A (GB)
Title: Process for the production of isothiocyanates
IPC: C07C331/16
Filed: 1963-07-03
Abstract: Isothiocyanates of the general formula R-N=C=S, wherein R is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, which may be substituted by halogen atoms or alkyl, haloalkyl and/or nitro groups, are produced by heating an isocyanide dihalide of the general formula <FORM:0966843/C1/1> wherein X is a halogen atom, with a pentasulphide of the general formula Y2S5, wherein Y is a phosphorus, arsenic or antimony atom, in the presence of an inert solvent. The reactants are expediently added to the inert solvent, the mixture heated, generally at 80 DEG -220 DEG C. and preferably at 100 DEG -150 DEG C., until the pentasulphide is completely dissolved and the isothiocyanate isolated by distillation. Said isothiocyanates have nenatocidal properties (see Division A5). Specification 942,520 is referred to.ALSO:Isothiocyanates of the general formula-R-N=C=S, wherein R is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, which may be substituted by halogen atoms or alkyl, haloalkyl and/or nitro groups (see Division C2), have strong nematocidal properties and are especially useful for combating phylopathogenic nematodes.  They are used as such or in the form of emulsifiable concentrates, wettable powders, pastes, soluble powders, dusts and granulates which may contain other active ingredients.  Specified emulsifiers for the isothiocyanates in said formulations include non-ionic and anionic emulsifiers.  Specification 942,520 is referred to.
Patent GB-222333-A (GB)
Title: Improvements relating to elastic tyres for road vehicle wheels
IPC: B60C7/28
Filed: 1923-10-23
Abstract: 222,333. Thorns, W. B., and N.A.P. Pneumatic Tyre Co., Ltd., (formerly N.A.P. Pneumatic Tube Tyre Syndicate, Ltd.). Oct. 23, 1923. Tyre attachments to rims. - The base por. tions a<1> of cushion tyres a, particularly of the kind described in Specifications 1646*/11 and 4929/13, are clamped to the wheel rim by a security band e having a centrally depressed portion e<1> and flanged edges e<2>.
Patent GB-384384-A (GB)
Title: Improvements in or relating to electric switches with arc extinction by self-generate
IPC: H01H33/76
Filed: 1931-09-22
Abstract: 384,384. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 22, 1931, No. 26498. Convention date, Oct. 20, 1930. Addition to 384,007. [Class 38 (v).] Relates to A.C. switches in which the arc is extinguished by vapour generated by the arc from substances which are arranged in the vicinity of the arc in a gaseous insulating medium, for example air, and extend into a container filled with the switching liquid so as to suck it up by capillary action, as in the parent Specification. According to the invention, the substances consist of porous ceramic material, for example a cylinder of fireclay.
Patent GB-742904-A (GB)
Title: Improved resilient pipe joints
IPC: F16L25/03
Filed: 1953-09-28
Abstract: 742,904. Pipe joints. VACINO, E., and PATERNO, F. E. Sept. 28, 1953 [Sept. 29, 1952], No. 26575/53. Class 99(1). In a resilient pipe joint comprising a T-section packing ring 9, Fig. 1, of compressed rubber or rubber-like material between the pipe ends, an inner sleeve 2 surrounding the ring 9 and an outer ring 1 surrounding the inner sleeve 2, each sleeve 1, 2 is resiliently secured to a different one of the pipe ends 5, 6 and also to the other sleeve by lead keys or casts of lead, lead alloy or a mixture of sulphur and sand capable of yielding to a limited extent, inserted in grooves 3, 7 and 4, 8 between the pipe ends and the sleeves, and in a recess 11 between the sleeves themselves. The ring 9 is located between the pipe ends before the joint is tightened by bolts 10 and the key or cast inserted in the recess 11; the bolts are then dispensed with. The grooves 3 and 4 may be out of alignment with the corresponding grooves 7 and 8, respectively. In a modification, the pipe grooves are replaced by bulges formed in the pipe ends, the adjacent ends of which are doubled over. In a further modification, the joint is formed by two overlapping sleeves 14, 15, Fig. 4, the former of which comprises electrically insulating material that is secured to the pipe 19 by keys or a cast located in grooves 16, 18 ; the sleeve 15 is similarly attached to the other pipe 22 but the groove 20 is not provided with an inner shoulder. The joint between sleeves 14, 15 is either secured by a cast between a single co-operating groove in each sleeve or between a single groove in sleeve 14 and a series of teeth or a thread 26 on the outer sleeve 15 which together with the construction of groove 20 enables the sleeve 15 to be readily inserted on or removed from the insulated sleeve 14. A mechanical device, not shown, used for compressing the ring 24 is removed when the cast between the sleeves has been effected.
Patent GB-1517082-A (GB)
Title: Shaft assembly
IPC: F16H57/00
Filed: 1976-06-25
Abstract: 1517082 Securing members to shafts PONTIAC FURNITURE INDUSTRIES Inc 25 June 1976 [10 July 1975] 26608/76 Heading F2U [Also in Division E2] A member such as a lever arm 12 is secured to a shaft 10 of non-circular cross-section by a method of torsional clamping, in which the member 12 is provided initially with a non- circular aperture 16 formed as a sliding fit upon shaft 10, and an adjacent attaching member 20 is provided with an aperture of similar form and size, these two members 12 and 20, in place on shaft 10, being subjected during assembly to a process of relative rotation in opposite directions with sufficient torque to produce deformation of one or more members, and the members 12 and 20 are then secured together, e.g. by insertion of a rivet 28, or by welding, in order to maintain the torsional grip, in respective opposite rotational directions, of each of them on the shaft. The non-circular cross-section of the shaft may be restricted to the regions of attachment, and may comprise polygonal, elliptical or rounded oblong shapes, including circular shafts having a longitudinal key or flat. (For Figures see next column.)
Patent GB-335708-A (GB)
Title: Improvements in pouring devices for use with bottles, jars or the like
IPC: B65D47/06
Filed: 1929-09-02
Abstract: 335,708. Chambers, C. Sept. 2, 1929. Stoppers with pouring outlets.-Relates to pouring devices for bottles &c. of the type described in Specificat i o n s 316,387 and 321,202. According to the invention the device includes a cap 3 having an internal recess 4 containing a resilient ring 5 for gripping the neck of a bottle. A recess 7 is' provided for a cork &c. washer 8 for engaging the end of the bottle neck. The pouring tubes may be formed integrally with a porcelain medallion, and the cap may be provided with a recess for engagement with a rectangular shoulder thereon.
Patent GB-190570-A (GB)
Title: Improvements in lamps for lighting steam-generator water gauges and the like
IPC: F22B37/78
Filed: 1921-10-08
Abstract: 190,570. Hall, J. Oct. 8, 1921. Steam generator water gauges, lamps for lighting.- An electric lamp for use in zones of high temperature is made with an opaque waterjacket 1 included in a circulation system and almost entirely enclosing the electric lamp bulb 2, and provided with a glazed slot 3 for the emission of light. Inlet and outlet connections 5, 6 for the cold circulating water are provided at the top of the lamp. The electric wires are conveyed to the bottom of the lamp by a flexible metallic tube 7.
Patent GB-987868-A (GB)
Title: Frequency shift reflector system
IPC: H01Q3/44
Filed: 1961-07-24
Abstract: 987,868. Aerials; keying radio frequencies; pulse radar; transponder apparatus. SIERRA RESEARCH CORPORATION. July 24, 1961 [Nov. 1, 1960], No. 26718/61. Headings H3R, H4A, H4D and H4L. A responder comprises a reflector the reflectivity of which is varied at a rate of at least one megacycle per second and not less than half the bandwidth of a radar receiver in a radar interrogating the responder. Thus an aircraft carrying the responder can be identified by detecting a sideband of the echo signal remote, e.g. 50 Mc/s., from the radar carrier frequency. The reflectivity modulation may be effected by a transistor Hartley oscillator 4 coupled to a diode 3, Figs. 1, 4, or to a ferrite strip in a horn aerial, Fig. 3 (not shown). In the ground pulse radar two intermediate-frequency sections are utilized, one corresponding to normal aircraft echoes and the other corresponding to a selected sideband from the responder, Fig. 2 (not shown).
Patent GB-220199-A (GB)
Title: Improvements relating to a lifting turntable for vehicles
IPC: B60S9/14
Filed: 1923-10-26
Abstract: 220,199. Chatwin, J., (Rad¾, A., and Egerhazy, L. von). Oct. 26. 1923, No Patent granted (Sealing fee not paid). Stands or supports.-The vehicle carries a turntable having screw-operated lifting-legs by means df which it may be lifted bodily from the ground and turned. The upper turntable member b is supported by ball bearings on the lower member c, which carries three guide members g for vertically movable supporting legs i. The legs are simultaneously raised or lowered by screws h, operated through bevel gearing from a central shaft j, which may be rotated in either direction by the engine through the medium of the bevel wheels r, t and shaft s, or may be rotated bv hand by means of the shaft s<1>. The upper and lower members of the turntable are locked together during the raising or lowering operations, but are unlocked when it is desired to rotate the vehicle. The friction of the screw lifting gear then prevents any further raising or lowering so that operation of the shafts s or s<1> rotates the vehicle bodily. In a modification the stem of the foot screws into a socket which is itself externally screw-threaded, and enters a socket forming part of the lower member of the turntable. The intermediate socket is rotated from the engine or by hand by means of a bevel wheel arranged below the fixed socket. In a further modification, the bevel wheel is arranged below the fixed socket. The circular wall a of the upper turntable b may be raised, and all the gearing carried by the turntable may be closed in by a top cover plate.
Patent GB-1145462-A (GB)
Title: Improved material mixing machine
IPC: B29B7/26
Filed: 1967-06-09
Abstract: 1,145,462. Plastic material mixing apparatus. STEWART BOLLING & CO. Inc. 9 June, 1967 [29 June, 1966], No. 26850/67. Heading BIC. In a Banbury type mixer the discharge door 13 is carried on supporting arms 50 keyed to a rotatable shaft 52 journalled in a hearing block which is restrained vertically but has limited lateral movement, being centred by compression springs or resilient pads (see Figs. 3 and 6, not shown) whereby the door is enabled to seal against the surfaces 31, 32 when locked in the closed position by the cam plate 60. The shaft 52 is rotated by a hydraulic motor (55, Fig. 1 not shown) and the cam plate 60 actuated by a hydraulic ram 64. The mixing chamber 11 and charging closure 36 are jacketed and cored respectively for passage of a heat exchange medium.
Patent GB-255285-A (GB)
Title: Improvements in cotton openers, scutchers and the like
IPC: D01G9/00
Filed: 1925-10-27
Abstract: 255,285. Howard &. Bullough, Ltd., and Bancroft, J. Oct. 27, 1925. Openers and scutchers; feeding openers &c.-In a cotton opener, scutcher or the like one or more additional dust cages are provided adjacent to the outlet e from the beater casing. The material is thrown by the beater b against a baffle t and falls by gravity onto the cage h. A dust trunk k is provided for the cage h, or it may be combined with the usual dust trunk m below the usual passage g. The cotton is fed from a hopper by rollers d so as to fall through an inlet c onto the beater. The outlet e is arranged at a considerable height above the centre of the beater and the grid o extends around a large portion of the beater. Air inlets are provided at v in the casing, and the admission of air can be regulated by a sliding perforated plate. The amount of air withdrawn through the cage h can also be regulated. The cage is perforated and provided with an external perforated cover which can be adjusted around the cage.