baber/WOPTO huggingface dataset:
Patent GB-1163228-A (GB)
Title: Improvements in or relating to valves for Flow Paths
IPC: F16K3/20
Filed: 1967-09-28
Abstract: 1,163,228. Valves. LINDE A.G. 28 Sept., 1967 [29 Sept., 1966], No. 44156/67. Heading F2V. Sealing between the valve closure member and valve body in either a butterfly valve, Fig. 2, or a sluice valve (Fig. 7, not shown) is effected by means of a hollow sealing ring 5 having disposed therein a helical spring 27 and being connectible to a supply of pressure. In the case of the butterfly valve, the sealing ring 5 which can be of circular or U-shaped section, is located in a groove formed in the housing 1, and is automatically connectible to the pressure source by means of a lug 16 depending from a piston rod 24 forming part of a valve actuator 14, which lug engages a plunger 17 subsequent to the valve reaching its closed position and releases same prior to the valve being opened, the plunger serving to actuate valves 18, 19, 20 which supply pressure to, and relieve pressure from the sealing ring respectively. A half-ring (26, Figs. 1 and 3, not shown), having a wedge-shaped profile, is located on the upstream side of the valve and serves to protect the sealing face of the closure member when the latter is disposed in its open position. In the case of the sluice valve, a groove formed in one side of a slot (47) into which the closure member (45) is movable, houses the sealing ring (5), the pressure within which is controllable in a manner similar to that above.
Patent GB-1071647-A (GB)
Title: Improvements relating to accessory devices for attachment to cutting tool holders
IPC: B26B27/00
Filed: 1964-10-29
Abstract: 1,071,647. Hand cutting tools; scrapers. H. M. LIGHTBURN. Oct. 29, 1964, No. 44194/64. Heading B4B. A cutting tool 11 is provided with a guide 12 to enable display trays 45, 48 to be cut from a carton 13, the guide comprising a tubular socket 30 frictionally engaging a tubular sheath 18 of the tool, a shank 32 and members each including a leg 34 and a flange 35. The sheath 18 encircles the major portion of a strip 16 which frictionally engages a single-edge razor blade 23 having a reinforced back edge 24. The strip 16 has a cut-out 25 for the back edge 24 and a stop 20 which exposes a corner 22 of the blade. The abutting edges 19 of the sheath 18 are bowed inwardly to frictionally grip the strip 16. The strip 16 has exposed ends 28 which provide a stop and serve for gripping the back edge of the blade when the latter is to be used as a scraper after removal of the guide. The guide is assembled over the blade-mounting end of the sheath until inturned stop tabs 37 engage the forward end of the sheath. At least one pair of nesting spring detents may be provided on one or both sides of the sheath and surrounding socket.
Patent GB-1011369-A (GB)
Title: Improvements in or relating to impregnating liquids containing a thermo-setting resin
IPC: C08G8/08
Filed: 1961-12-11
Abstract: A method of making an aqueous impregnating liquid poor in electrolyte and containing a thermo-setting reaction product of phenol, a cresol or a mixture of cresols of phenol and one or more cresols comprises reacting the phenol(s) with from 1.5 to 3.0 gram moles of formaldehyde per gram mol of phenol at elevated temperature in an aqueous medium at a pH of 7.0 to 8.0 achieved by the presence of a basically reacting alkaline earth compound or an aliphatic tertiary amine which is not incorporated in the resin molecule, the reaction continuing until a reaction product has been formed in which at least 1.2 gram mol of formaldehyde are bound per mol of hydroxybenzene. Acids which are incorporated in the resin molecule, e.g. boric acid, m-cresotinic acid, phenol-carboxylic acids, aminocarboxylic acids or aminosulphonic acids, are preferably added to the reaction products. The examples describe the preparation of impregnants from:-(I) phenol, formalin, triethylamine and stearylamide, boric acid being added to the product; (II) phenol, paraformaldehyde, formalin, triethylamine and stearylamide, boric acid being added to the product; (III) m- and p-cresol, formalin, calcium hydroxide and cetyl alcohol, m-cresotinic acid being added to the product; and (IV) phenol, formalin, calcium hydroxide and cetyl alcohol, boric acid being added to the product.  The resultant solutions are used for impregnating paper sheets which are stacked and laminated under heat and pressure.
Patent GB-1487304-A (GB)
Title: Apparatus for timing the firing of energy sources
IPC: G01V1/08
Filed: 1973-09-20
Abstract: 1487304 Automatic control SEISMOGRAPH SERVICE (ENGLAND) Ltd 20 Sept 1974 [20 Sept 1973] 44248/73 Heading G3N In an arrangement for ensuring that a number of energy sources, e.g. air guns used in seismographic surveying, are fired at a desired instant or instants despite variations in operating time of the firing mechanisms, each mechanism is actuated via a programmable delay counter the delay of which is automatically increased or decreased if the corresponding gun fired early or late respectively at the last firing. As shown each programmable delay is in a logic unit 18 which receives "clock", "load", and "trigger" pulses on lines 12, 14, 16 respectively from a unit 10. At the end of its programmed delay, each unit energizes a corresponding firing solenoid unit 44. Signals corresponding to the actual operating instants of the respective guns are fed back on lines 46 and compared with a reference time signal from a counter 24 which is also initiated by the "trigger" signal. The reference time may be made different for each gun or group of guns, Fig. 7 (not shown). If the actual firing occurs early or late, a discriminator 66,Fig. 2, sends an appropriate signal to add or delete one unit from the value in adder 68 and which is held in a store 50. At the next "load" pulse, the new value is passed to delay counter 52. A fixed delay counter 60 is inserted between the programmable counter 52 and the firing unit and can be adjusted in coarse steps if the adder 68 reaches zero or its top limit, this condition being indicated by illumination of an l.e.d. in line 82. For initial setting up, switches 88, 89 allow a desired value to be inserted into the adder 68 via a manual unit 90. The discriminator logic is described in detail, Fig. 6 (not shown) and produces a binary number which is fed to the adder 68.
Patent GB-1235978-A (GB)
Title: Slug-driving tool
IPC: H01R43/00
Filed: 1969-09-08
Abstract: 1,235,978. Making electrical connections. SARGENT & CO., and H. A. FAULCONER. 8 Sept., 1969 [20 Sept., 1968], No. 44355/69. Heading B3A. [Also in Division H2] A slug driving tool comprises a support 10, Figs. 1, 4, means 19, 20 to support the work into which a slug 25 is to be driven, a magazine 23 on the support 10 for the slugs to be fed to a forward nosepiece 38 which provides at least in part a slug chamber, the magazine having means biasing the slugs and holding the leading one against the nosepiece structure, and a plunger carrier relatively movable towards and away from the work support means, the carrier having at least one plunger 50 operating through the slug chamber to drive at least one of the slugs into the work. The magazine 23 is loaded by withdrawing a yoke 44 until it latches over a cap 47 and raising nosepiece 38 against the action of a spring 55. The nosepiece is locked by rotating it so that a portion 39 rests on an abutment 37 in a head 26 of the magazine. The slugs are then placed in a channel member 24, the nosepiece lowered and the yoke 44 released. In an alternative embodiment, Fig. 22 a loaded magazine is inserted in the tool by applying finger pressure to plates 135 so that a retainer 140 may be swung upwardly. The magazine is pushed backwardly through a cylinder cap 81 and when in position, it is lowered to engage a slug pusher (117) having a follower (126), Fig. 18 (not shown). A cover (132) is removed from the magazine before the retainer 140 is lowered again, Fig. 26 (not shown) and the pressure on the plates 135 released. Pairs of insulated wires 76 to be electrically connected are laid across cavities 72 of a terminal block 71 and are held by shaped slits 75 in a fanning strip 74, Fig. 11. The block is then inserted in the tool, wherein it is supported by a bucking comb having flanges 19, between which the free ends of the wires extend. The handles 12 are moved together to drive the plunger 50 down wardly to force the leading slug 25 into the cavity 72. As the slug moves into the cavity it trims the ends of the wires and bites into the insulation, forming a tight fit in the cavity. The handles are then released and the block re-engaged with the tool in registry with another cavity to be filled with a slug. A ratchet and pawl device is provided to prevent the handles being opened after only partial closure and vice versa, Figs. 12, 13 (not shown). In the alternative embodiment (Fig. 22), the terminal block with the insulated leads is placed on a bucking comb 92 which has four teeth. A valve 86 is depressed to allow compressed air to drive a piston downwardly in a cylinder (80), Fig. 18 (not shown). The piston-rod 82 is connected to a plunger carrier, which has a forward extension 98 carrying three plungers 99. The plungers are simultaneously driven into cavities in the terminal block and the piston is returned by a spring. The slugs may be made of a non- conductor, in which case the bared wires are exposed to a conductive lining in the cavity, and they may be spherical in shape.
Patent GB-1280177-A (GB)
Title: Improvements in and relating to pneumo-mechanical digital data-storage devices
Inventor: KELLER OTTO
IPC: F15C1/02
Filed: 1969-09-09
Abstract: 1280177 Pneumo-mechanical digital datastorage devices FILMFABRIK WOLFEN VEB 9 Sept 1969 44542/69 Heading G4B A pneumo-mechanical digital data-storage device comprises a drum 11, Figs. 3, 4, having a peripheral wall 12 and equiangularly spaced storage cells in the wall, each cell comprising chambers 8, 9 interconnected by a bore 10 and housing a storage element 7, e.g. a ball or pin, movable from chamber 8 to chamber 9 by a pneumatic input device 3, Fig. 3, and conversely by a pneumatic erasure device (5), Fig. 5 (not shown), and radially disposed bores 6 which co-operate with a pneumatic interrogation device 4, 4a, Fig. 4, adjustably positioned adjacent wall 12. Each element 7 is confined within its associated cell by bushes 20 and the drum is driven stepwise by an actuator 13, Fig. 6, preferably pneumatic and of limited stroke, via toothed discs 18, 19 and associated pawls 16, 17 respectively. Pawl 16 is pivoted to a spring loaded transmission lever 15 and performs the stepping motion and pawl 17, fixed to lever 15, acts as a locking device. Preferably the erasure device is situated at least two storage cells away from the input device in the direction of rotation of the drum, and the drum may be associated with a plurality of interrogation devices.
Patent GB-971529-A (GB)
Title: Polymerisation of alpha-olefins
IPC: C08F10/00
Filed: 1962-11-26
Abstract: A modified TiCl3, suitable for use as a catalyst component, is made by agitating TiCl3 at a temperature between 20 DEG  and 90 DEG  C. for a period of 10 minutes to 30 hours.ALSO:A stereospecific polymerization catalyst for alpha-olefins is made by contacting a solid transition metal halide e.g. TiCl3, with an organometallic compound e.g. AlEt2Cl, and either heating the mixture of the organometallic compound and halide, or the halide to a temperature between 20 DEG  and 90 DEG C. under agitation for a period of 10 minutes to 30 hours.  The polymerization is generally effected in a hydrocarbon diluent such as n-heptane, and the polymer is recovered by conventional techniques e.g. addition of butyl alcohol, and steam treatment. The exemplified alpha-olefin is propylene.
Patent GB-1197828-A (GB)
Title: Electrostatic Printing Material and Method of its Preparation.
IPC: G03G5/05
Filed: 1968-09-20
Abstract: 1,197,828. Electrophotographic element. GOODYEAR TIRE & RUBBER CO. 20 Sept., 1968 [27 Oct., 1967], No. 44812/68. Heading H1K. An electrophotographic element comprises a conductive support having thereon a layer comprising a dispersion of photoconductive material in a polymer prepared by solution polymerization from monomers comprising ethyl acrylate, hydroxyethyl methacrylate or hydroxypropyl methacrylate, styrene and optionally chlorostyrene. The monomers are employed in amounts 30-65 wt. per cent ethyl acrylate, 3-10 wt. per cent hydroxyethyl or hydroxypropyl methacrylate, 30-60 wt. per cent styrene and up to 10 wt. per cent chlorostyrene. The polymer preferably has an intrinsic viscosity of 0À2 to 0À5. The photoconductor may be ZnO, Se, CdS, Cd Te, S or anthracene whilst the support is preferably conductive paper. Various solvents and polymerization initiators are specified for the polymerization in solution. A small amount of methacrylic acid may be added to the polymeric binder.
Patent GB-1385884-A (GB)
Title: Load raising and lowering jacking apparatus
IPC: B66F1/08
Filed: 1971-09-30
Abstract: 1385884 Step-by-step jacks B BARBACK and H G PRIMROSE 19 Dec 1972 [30 Sept 1971] 45463/71 Heading B8J A step-by-step jack comprises upper and lower crossheads 10, 11 interconnected by hydraulic jacks 12, 12a. A vertical rack 15 is pivotally suspended at 17 from a support 18 and extends through the crossheads 10, 11. A load (not shown) to be raised or lowered is supported by a trunnion 19 carried by the upper crosshead 10. Supporting pawls 22, 22a are pivoted on the upper crosshead 10 at 21, 21a and are biased into contact with teeth 16 on the rack 15 by weights 24 on levers 23, 23a also pivoted at 21, 21a and having interengaging teeth 26. Operating pawls 29, 29a are similarly mounted on the lower crosshead 11. Auxiliary cylinders 33, 33a are mounted on the upper crosshead 10 to co-operate with the pawls 22, 22a and 29, 29a respectively. When the auxiliary cylinders 33, 33a are unpressurized extension and retraction of rams 14, 14a of the jacks 12, 12a raises the load step-by-step the load being taken alternately by the pawls 22, 22a and 29, 29a, the unloaded pawls ratcheting over the teeth 16. To lower a load the auxiliary cylinders 33, 33a are pressurized, but the pressure supplied is too low to disengage the pawls 22, 22a and 29, 29a except when the load is carried by the other set of pawls. In the position shown this means that the pawls 22, 22a remain engaged while the pawls 29,29a are pivoted out of engagement with the teeth 16. The jacks 12, 12a are now extended and the crosshead 11 moves downwardly. This moves actuating pin 36a on the lever 30a out of contact with head 35a on ram 34a of auxiliary cylinder 33a allowing the weights 31 to bias the pawls 29, 29a back into contact with the teeth 16 of the rack 15. Continued extension of the jacks 12, 12a transfers the load from the pawls 22, 22a to the pawls 29, 29a allowing the auxiliary cylinder 33 to disengage the pawls 22, 22a by means of its ram 34 acting on pin 36 on the lever 24 through its head 35. Retraction of the jacks 12, 12a now lowers the crosshead 10, with attached load. This brings a push rod 35b on the crosshead 11 into contact with the pin 36 which forces the ram 34 back into the auxiliary cylinder 33 and allows the pawls 22, 22a to re-engage the teeth 16. Continued retraction of the jacks 12, 12a transfers the load to the pawls 22, 22a when the apparatus is ready for another cycle.  In a modification, Fig. 2 (not shown), lower crosshead (42) is supported on beams (44) and a load attached to a rack (45) is raised and lowered by raising and lowering the rack (45).
Patent GB-1390794-A (GB)
Title: Arrangement for pressing magnetic cards against a magnetic head
IPC: G06K7/015
Filed: 1972-10-03
Abstract: 1390794 Guiding magnetic records KOMBINAT ZENTRONIK VEB 3 Oct 1972 45598/72 Heading G5R A magnetic record card 15 is driven past a magnetic head 2 having a convex working surface 20 against which the card is pressed by a leaf spring 12 comprising a portion curved in the same sense as the working surface 20 and lying opposite thereto between two oppositelycurved portions of the spring, one end of the spring 12 being fixed and the other lying adjacent to an adjustable stop 13. (For Figure see next column.)
Patent GB-1125968-A (GB)
Title: Looms
IPC: D03C1/14
Filed: 1965-11-02
Abstract: 1,125,968. Shedding mechanism. HIJOS DE J. SERRA BORRAS. 2 Nov., 1965 [2 Nov., 1964], No. 46456/65. Heading DIE. In a shedding mechanism the heald frame 37 is pulled down by a cable 32 which bifurcates around pulleys 33 and acts via rotatable arms 34 and links 36 return upward motion being provided by springs 44. The three lifting and return means shown may be replaced by only two such mechanisms per heald frame and extra pulleys as at 33 may be provided.
Patent GB-1190969-A (GB)
Title: An Insecticidal Composition
Inventor: VLIG MEYE
IPC: A01N25/18
Filed: 1967-10-13
Abstract: 1,190,969. Shaped insecticidal compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPJ N.V. 13 Oct., 1967, No. 46856/67. Addition to 1,161,545. Heading A5E. A shaped composition or article having long effective insecticidal life comprises an active component and an outer layer, the active component comprising as active ingredient a volatile organic phosphorus compound of formula wherein R<SP>1</SP> is H or alkyl, Z is halogen, R<SP>11</SP> is H, alkyl or halogen and R<SP>111</SP> is alkyl, aryl, aralkyl or alkaryl; together with a carrier, preferably a thermoplastic polymer, and optionally conventional adjuvants; and the outer layer consisting of a copolymer of an ethylenically unsaturated hydrocarbon and a compound wherein R<SP>4</SP> is H or C 1  to C 4  alkyl and R<SP>5</SP> is C 1  to C 10  alkyl, the layer (e.g. film, shrunk film or laminate) suitably being 10 to 200 microns thick and allowing the insecticide to be emitted into the outside air. In the example 2,2-dichlorovinyl phosphate in polyvinyl chloride is enclosed in a film of ethylene/butyl acrylate copolymer.
Patent GB-1066130-A (GB)
Title: Self advancing mine roof supports
IPC: E21D23/04
Filed: 1965-11-05
Abstract: 1,066,130. Advancing mine roof supports. HOUILLERES DU BASSIN D'AQUITAINE and J. VIGUIE. Nov. 5, 1965 [March 8, 1965], No. 47024/65. Heading E1E. An advancing mine roof suport consisting of two frames 1, 2 arranged in parallel is provided with aligning means comprising a cable 4 secured to a bracket 5 and a jack 9 on one frame with the inter position of guides 6 and pulleys 7, 8 as shown. The frame 2 is secured to the cable 4 by guides 11 slotted to allow relative vertical movement. The bracket 5 has a transverse slot with notches whereby the direction of alignment of the frames can be adjusted, Fig. 6 (not shown). The roof bars of the frames also include resilient restoring devices for the props, Figs. 2 and 3 (not shown). For a modified arrangement applicable to frames having articulated roof bars, Figs. 8, 9 and 10, (not shown), should be referred to.
Patent GB-1402328-A (GB)
Title: Brake booster
IPC: F16D65/28
Filed: 1972-10-12
Abstract: 1402328 Brake boosters ALFRED TEVES GmbH 12 Oct 1972 [16 Oct 1971] 47024/72 Heading F2F In a vacuum brake booster a push rod 4 is integral with a master cylinder piston 5 and non rigidly connected to the booster piston 3, the spherical head 16 of the rod being mounted with axial play in a recess 15 of a sleeve 14 provided on piston 3 and a return spring 7 being located between a shoulder 6 of the master cylinder 6 and a cup-shaped element 10 mounted on the rod.
Patent GB-954835-A (GB)
Title: Improved polymers
IPC: C08F214/22
Filed: 1960-03-01
Abstract: Cross-linkable copolymers having a molecular weight between 2,000 and 10,000 and which are liquid at 60 DEG C. or below are obtained by polymerising 15 to 50 mol per cent of hexafluoropropene with 50 to 85 mol per cent of vinylidene fluoride at a temperature between 100 and 200 DEG C. in the presence of a free-radical polymerisation promoter and an acyelic mercaptan or non-polymerizable halo-hydrocarbon chain transfer agent.  The polymerization system may be aqueous or non-aqueous and may be operated in a continuous or batchwise manner. Specified promoters are cumene, diisopropyl benzene and t-butyl hydroperoxides; benzoyl, chloroacetyl, barium and zinc peroxides; and metal and ammonium persulphates, perphosphates and perborates. Emulsifiers such as perfluorooctanoic acid, sodium oleate and potassium palmitate and stearate may be used in aqueous systems. Cross-linking may be effected at up to 150 DEG C.; several examples are given of amine, peroxide and dithiol cross-linking agents and basic metal oxide accelerators therefore.  Cross-linking may be effected in situ e.g. to line an aluminium tank. The invention claimed in Secification 954,834 -wherein an alpha-beta unsaturated carboxylic acid is present as an essential third comonomer-is disclaimed. Specification 823,974 also is referred to.
Patent GB-1507299-A (GB)
Title: Integrated semiconductor devices
IPC: H03K19/091
Filed: 1975-03-11
Abstract: 1507299 Integrated injection logic SIGNETICS CORP 11 March 1975 [26 March 1974] 47297/77 Divided out of 1507061 Heading H1K In the I<2>L structure shown, current is supplied to the base of the multi-collector inverted switching transistor by a vertical transistor the collector of which is constituted by the N- type layer which also forms the base of the switching transistor, and the base 138 of which is connected via a resistor, constituted by a constricted P region 140, to the earthed part 136 of the emitter of the switching transistor which part also constitutes an isolating wall.