baber/WOPTO huggingface dataset:
Patent GB-513350-A (GB)
Title: Improvements in stabilising polyvinyl acetal resins
IPC: C08L29/14
Filed: 1938-08-12
Abstract: 513,350. Polyvinyl acetal resins. SHAWINIGAN CHEMICALS, Ltd. Aug. 12, 1938, No. 23788. Convention date, Aug. 13, 1937. [Class 2 (iii)] Polyvinyl acetal resins are stabilized by addition of p-tertiary-amyl-phenol or a condensation product of the same with an aldehyde, e.g., formaldehyde or acetaldehyde. In examples, the stabilizer is added to the reaction mixture for the preparation of the resin, or to a solution of the pre-formed resin. Specification 442,057 is referred to. The Specification as open to inspection under Sect. 91 refers to the use of "an agent capable of rendering said acid acetal resin practically stable in colour value when subjected to temperatures up to 110C. for. a time up to 10 days." There are additionally specified palkyl-substituted phenols. This subject-matter does not appear in the Specification as accepted.
Patent GB-1506601-A (GB)
Title: Transfer feeder
IPC: B21D43/05
Filed: 1975-06-02
Abstract: 1506601 Transfer presses KOMATSU SEISAKUSHO KK 2 June 1975 23794/75 Heading B3H A transfer feeder for a transfer press comprises a pair of parallel transfer bars 4, 5, each of which is slidably mounted on a respective slide 2, 3, means for driving the slides toward and away from each other in synchronism with the operation of the press and clutch means 9 associated with the driving means which enables the distance between the transfer bars to be adjusted by moving the slides towards or away from each other independently of the driving means when the clutch is disengaged. The bars 4, 5, are moved in opposite directions by pinions 8, Fig. 2, which engage racks 6, 7 secured to the slides 2, 3, and a gear 12 forming part of the clutch 9, is driven by a rack 16, which is reciprocated by a press mechanism 17. The gear 12 is formed with a pair of projections (12 1 ), (12 2 ), which engage in one pair of three pairs of equi-angularly spaced recesses (11 1 -11 6 ) in the gear 11, Figs. 3, 4 (not shown). To set the bar spacing to, e.g. L3, the clutch 9 is disengaged by actuation of an hydraulic cylinder 19 and a shaft 10 is rotated by an electric motor (23), Fig. 5 (not shown), via a shaft 24a and bevel gears 21, 24. The gear 11 rotates with the shaft 10 until a cam 11b on it actuates a limit switch 15 thereby declutching the motor (23) and actuating the cylinder 19 to re-engage the clutch 9. The peojections (12 1 ), (12 2 ) are then engaged in recesses (11 3 ), (11 6 ).
Patent GB-260561-A (GB)
Title: Improvements relating to acoustic apparatus, particularly signalling apparatus
IPC: G10K1/068
Filed: 1926-09-27
Abstract: 260,561. K³chenmeister, H. J. Oct. 28, 1925, [Convention date]. Whistle, reed, and siren signals; bell and gong signals. - Comprises sound generators and actuating means therefor, both constructed, combined and arranged that the individual generators are excited at intervals of less than one-third of a second, in order to obtain the most suitable superimposition of the emitted sounds. In one form, Fig. 1, two steam or pneumatic whistles k<1>, k<2> are mounted on the same casing and controlled by a valve g having ports h, the valve revolving at a predetermined speed. If the signal is to be of the double note type the whistles must differ in length &c. In another form a pair of bells are tuned to different notes and two such bells are mounted on shafts geared together, offset cams on the shafts operating the strikers. The two bells on one shaft emit the same note at an optimum interval while the bells on the other shaft emit a note of different pitch separated by the same interval. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a siren consisting of a perforated rotating disc and a fixed perforated disc, the device being operated through a compressed air pipe and the revolutions of the rotating disc selected so that identical sound impulses are generated at intervals of “ to <1>/80 of a second. This subject-matter does not appear in the Specification as accepted.
Patent GB-1020406-A (GB)
Title: Improved hydraulic braking system
Inventor: RYSKAMP NEIL J
IPC: B60T11/32
Filed: 1964-06-09
Abstract: 1,020,406. Fluid-pressure brakes. ALLIS CHALMERS MANUFACTURING CO. June 9, 1964 [June 18, 1963], No. 23852/64. Heading F2F. A hydraulic fluid-compensating mechanism 19 for a hydraulic braking system in which such mechanism is interposed between a source, e.g. a master cylinder 11, and a wheel cylinder or cylinders 33, comprises a metering piston 52 reciprocable in a cylinder 51 and having a bypass passage normally closed by a spring-loaded ball 58 which can be unseated, when the piston reaches the end of its travel, and fluid-isolating mechanism which is associated with actuating means for unseating the ball 58 whereby, if pressure in the wheel cylinder drops owing to a rupture of the hydraulic line, the ball 58 will not be unseated. The actuating means is the face of a small diameter piston which is integral with a large diameter piston forming a differential piston 62 which is acted on by pressure in the brake cylinder via a passage 77, so that the actuating face is retracted when wheel cylinder pressure fails. A screw 56 adjusts the clearance of the brake linings, and a screw 74 adjusts the retracted position of the differential piston 62. The hydraulic system includes a second fluid compensating mechanism 21 for brake cylinders 37.
Patent GB-476828-A (GB)
Title: Improvements in centrifugal spraying and impregnating apparatus
IPC: B05B3/02
Filed: 1936-09-01
Abstract: 476,828. Centrifugal apparatus. LORING, F. H. Sept. 1, 1936, No. 23919. Addition to 444,833. [Class 23] [Also in Group XXIX] An apparatus for treating granular material as described in the parent Specification is provided with a return feed arrangement by which apart of the material treated is returned to the feed hopper from whence it is passed in a thick curtain around the spraying drum. Material to be treated is fed into a hopper 43 and passes around a spraying basket 29 and enters pockets 7 formed on a drum wheel A by which it is carried up and redelivered into the hopper 43 through a guide, not shown. It then forms a thickened curtain of material round the basket and when the system is moderately full the material overflows at J and is guided out of the apparatus by a deflecting plate. The bucket 29 may be constructed as described in the parent Specification or as described in Specification 464,847, [Group XXIX]. The drum wheel A is mounted on an inclined shaft carried by a standard 2, and driven by gearing from a vertical shaft 14 driven by a pulley. The vertical spindle is bored at 16 and provided with a wick dipping in an oil cup 17 fixed at its upper end, oil ways being formed through the apparatus leading to a sheet metal casing 18 encasing the gearing from whence the oil is drawn away through a passage B.
Patent GB-1397125-A (GB)
Title: Polyamide-acids polyamide-imides and processes for their  production
IPC: C08G73/14
Filed: 1972-05-22
Abstract: 1397125 Insulating conductors STANDARD OIL CO 22 May 1972 [26 May 1971 24 April 1972] 23971/72 Heading H1A [Also in Divisions B2 and C3] Cu and Al magnet wires are insulated by coating with solutions of a poly(amide-acid) or poly(amide-imide) which may also contain guanidine carbonate as bonding agent. The poly(amide-acid) or poly(amide-imide) is prepared from (A) trimellitic anhydride, (B) # 1 aromatic diamine, and (C) #1 aliphatic lactam or amino-acid, where, by moles, (B)/(A) is 0À9- 1À1, and (C)/(A) is 0À3-2À5. (B) may have, e.g. 1-4 aromatic rings which may be fused or directly linked or connected by, e.g. -O-, alkylene, -CO-, -SO 2 -, or -S- linkages. (C) may contain 1-3 C atoms. The solvent may be, e.g. N-methylpyrrolidone, dimethylacetamide, dimethylformamide, dimethyl sulphoxide, cresylic acid, or m- or p-cresol.
Patent GB-666774-A (GB)
Title: Stabilizing device for reserve records in talking machines with automatic change of records
IPC: G11B17/16
Filed: 1948-09-13
Abstract: 666,774. Automatic gramophones. THORENS SOC. ANON., H. Sept. 13, 1948. [Sept. 23, 1947] No. 23975/48. Class 40 (ii). In an automatic gramophone of the kind in which records are supported on a stepped centre-post, the records are steadied thereon by pressure of a device in the form of a parallelogram suspended from an arm 7 which carries the mechanism for releasing records one by one from the centre post. Three sides of the parallelogram are formed by, hinged plates 40, 41, 44 suspended at pivotal points 42, 43 in the arm 7, a torsion spring being provided to hold the plate 44 against the records 6. An extension 49 of the plate 44 serves to operate a switch-lever 50 to stop the gramophone, by means not shown, after the last record has fallen to the turntable. The initial position of the pick-up on the record is set for a 12 inch diameter record, by mechanism not shown, under the control of a feeler 37 which is pivoted on a common axis 38 with the lever 50 and is tripped by 12 inch records when falling to the turntable. Records are released from the centre-post by a lever 11 operated by longitudinal motion of a bar 15 under the control of an eccentric cam 21 on a shaft 23.
Patent GB-647464-A (GB)
Title: Improvements in or relating to noise-reducing arrangements for discharge-tube amplifiers
IPC: H03F3/52
Filed: 1946-08-13
Abstract: 647,464. Valve circuits. PHILIPS LAMPS, Ltd. Aug. 13, 1946, No. 24008. Convention date, Nov. 11, 1942. Addition to 645,936. [Class 40 (v)] In a tuned amplifier circuit of the type described in the parent Specification, in which the damping of the input circuit is in part produced by negative feed-back in order to improve the signal-to-noise ratio, the damping is rendered constant over a wide tuning range. The coupling is a mixture of inductive and capacitive, comprising the coil 5, which is coupled to the tuning inductance 4, and the condenser 3. In an alternative arrangement the points of connection of the grid and anode of the valve 6 to the circuit 1 are interchanged.
Patent GB-1415617-A (GB)
Title: Granular or pulverulent organic peroxides
IPC: C07C409/16
Filed: 1974-05-30
Abstract: 1415617 Granular/pulverent organic peroxides AKZO NV 30 May 1974 [14 June 1973] 24074/74 Heading C2C A granular or pulverent organic peroxide which is solid at - 20 to + 55 C., is obtained by solidifying the liquid peroxide with the aid of a liquid cooling medium in which the peroxide does not dissolve or hardly dissolves and which is liquid at -20 C. or lower, but gaseous at the storage temperature of the peroxide to be solidified. Specified peroxides are di-isopropylperoxydicarbonate, di - n - decylperoxydicarbonate, di - octanoyl peroxide, di - pelargonyl peroxide, di-decanoylperoxide and dilauroylperoxide. Di-isopropylperoxydicarbonate is obtained by reacting isopropyl-chloroformate, hydrogen peroxide and sodium hydroxide.
Patent GB-144935-A (GB)
Title: Improvements in ventilators, chimney pots, cowls and the like
IPC: F23L17/02
Filed: 1919-10-02
Abstract: 144,935. Green, T., and Oldham, B. A. Oct. 2, 1919. Chimney and ventilating-shaft tops. - A chimney or ventilating shaft top of the kind in which an updraught is caused by air passing through tubes extending from the sides of the pot through the interior towards the outlet end, comprises an ejector tube b of upwardly increasing section in which is an axially-disposed nozzle a connected by one or more tubes a<1> with one or more openings a<2> in the wall. The smoke &c. is drawn by the ejector action through ports formed between the tubes a<1> and the wall. An outer casing or sleeve e, having apertures e<1> at its lower end, may surround the tube b, the space between the tube b and sleeve e being of upwardly diminishing crosssection. Air passing through the apertures e<1> creates a further ejector action at the mouth of the tube b. Radial division members f may be arranged between the openings e<1>. Moisture may be collected by a channel formed by a flange g and passed out through drainage holes g<2>; ribs g<1> on the sides of the tubes a<1> deliver moisture collecting on these tubes to the channel.
Patent GB-378217-A (GB)
Title: Improvements in the production and purification of light oils by the distillation offuel
IPC: C10G7/00
Filed: 1931-08-27
Abstract: Relates to the treatment of light oils obtained from the products of the destructive distillation of coal as described in Specifications 356,079 and 357,057, [both in Group XII], according to which the gases and vapours are drawn by suction from ducts in the charge.  The light oils are, before subjecting them to washing with concentrated sulphuric acid, treated with a polymerizing agent of restricted activity.  This treatment may be with sulphuric acid of 80 per cent strength at atmospheric temperature, or of lesser concentration at a higher temperature; or with halide salts such as zinc chloride, aluminium chloride or ferric chloride, with ferric sulphate, sodium methylate, sodium ethylate, boric or phosphoric acid, or with adsorption materials such as silica gel, activated carbon, infusorial earth, or fuller's earth.
Patent GB-319719-A (GB)
Title: Improvements in photographic cameras
IPC: G03B17/17
Filed: 1928-05-25
Abstract: 319,719. Josepho, A. M. May 25, 1928. Divided on 318,092. Cameras, hand.- A hand camera for taking reversed images has a reflecting prism 6 permanently mounted therein behind the lens 5. The camera illustrated is a rollfilm camera for taking successive pictures as described in Specification 318,092. The prism 6 may be mounted by flanges 9 on a holder 7, and positioned against a stop 11 by a screw 10. 'The back face of the prism may be covered with felt 12.
Patent GB-142026-A (GB)
Title: Improvements relating to hydraulic mains for gas retorts
IPC: C10B27/06
Filed: 1919-10-03
Abstract: 142,026. Dempster, R. &. J., Beard, G. F. H., and Tooley, G. W. Oct. 3, 1919. Hydraulic mains. - An hydraulic main is divided into sections a<1>, a<2>, a<3> so that a separate seal for each tier of retorts, as described in Specification 25783/05, may be obtained with ascension pipe connexions of uniform length. The dippipes, and the liquor inlets and outlets g, are arranged in line, or approximately so, as described in Specification 2861/04.
Patent GB-1209134-A (GB)
Title: Improvements relating to the insulation of gear-shift linkage of motor-vehicle gearboxes
IPC: F16F1/387
Filed: 1969-05-13
Abstract: 1,209,134. Change-speed control. DAIMLERBENZ A.G. 13 May, 1969 [14 May, 1968], No. 24272/69. Heading F2D. To cushion and insulate the gear shift linkage 15, 16 of a motor-vehicle engine-gear-box unit 10-12 to prevent the transmission of vibration and/or noise to the vehicle's bodywork, protruding cranked gear-shift shafts 14, 15 are engaged by gear-shift links 16 through resilient sleeve spring units 17 each comprising inner and outer sleeves 20, 18 connected by resilient members 22 located transverse to the direction 23 of actuation of the link, the outer sleeve 18 additionally having resilient abutments 24 arranged with a slight clearance 25 from, and engageable in said direction with, abutment faces 26 on the inner sleeve 20, the transverse resilient members 22 normally suspending and insulating the link 16 which on gear-shift actuation safety shear stresses the members 22 to compressingly engage one or other resilient abutment 24 with the centre sleeve 20 for movement of the cranked shift shaft 14, 15.
Patent GB-198948-A (GB)
Title: Improvements in advertising and signalling apparatus
IPC: G09F9/37
Filed: 1922-01-10
Abstract: 198,948. Naylor, J. P. Jan. 10, 1922. Electric lamp lanterns and casings.-An incandescent lamp D, illuminating each visual element of a monogrammic-sign assemblage of the general type described in Specification 18266/10, [Class 118 (ii), Signals], is mounted within a cupshaped reflector adapted to be rotated through 180‹ about hollow parts G, G1 so that the lamp is either exposed or obturated, as desired, in building-up an advertisement or other sign. The electric leads pass through the hollow trunnion G1 to a commutator switch J1, I, J, which co-operates with brushes L, D L2 in such a manner that the lamp is automatically lit when the element is in the display position and is extinguished in the reversed position. In the latter case, the current is switched through a substitutional heating-resistance JJ in order to melt any snow, sleet, &c. that may have accumulated in the cup-shaped reflector. Means may be provided for maintaining the whole of the lighting circuit at a constant resistance-value, e.g. as described in Specification 13358/13, [Class 38 (v), Electric switches &c.]. Specifications 18657/14 and 11560/15, [both in Class 118 (ii), Signals], are also referred to.
Patent GB-702418-A (GB)
Title: Improvements in or relating to writing instruments
IPC: B43K27/08
Filed: 1951-10-22
Abstract: 702,418. Reservoir pens. KARCHER. H. Oct. 22, 1951, No. 24569/51. Class 146(3) A fountain pen having piston self-filling means and a ball-point pen are arranged at opposite ends of a barrel 1 provided internally with a rotatable tubular portion 4 having an internal thread 5a co-operating with a screwthreaded piston spindle 6a and an internal thread 5b, on an end portion 4b, for the reception of the ball-point pen reservoir 11. The portion 4 is retained against axial displacement - between a shoulder 8 in the barrel 1 and a screwed flange member 9, such that rotation of the portion 4b causes actuation of the spindle 6a and thus a filling-piston 6 thereon. A closure cap 3 is normally screwed on the projecting end of the member 9, but when the ball-point pen is in use the cap 3 is screwed on a short thread 10 on a cap 2 which encloses the nib of the fountain pen, the cap 2 being placed on the cap 3 when the nib is in use.
Patent GB-989764-A (GB)
Title: Improvements in or relating to ultrasonic inspection devices
IPC: G01N29/27
Filed: 1963-06-21
Abstract: 989,764. Ultrasonic inspection systems. BABCOCK & WILCOX CO. June 21, 1963 Oct. 1, 1962], No. 24818/63. Heading H4D. In an ultrasonic flow detection system for an advancing longitudinal workpiece that is subject to deviations from strict axial travel the transducer is supported by means including a carriage in engagement with the workpiece and so mounted that it follows the deviations of the latter from strict axial travel and thus maintains the transducer in constant angular relationship with the workpiece. The invention is particularly concerned with the testing of seam welded tubing which may be produced by the forming and welding mill at 80-120 ft. per minute. As shown, the tubing 11 having a weld 15, is supported on rollers 63 as it advances through a waterfilled tank 70 via openings 85 sealed by flexible gaskets 89. The tank, through which the transducers 12 project (the latter being adjustable as to height and orientation, e.g. to 121, by ball and socket and rack and pinion means, Figs. 4 and 5, not shown) is pivotally supported via adjustable means 71, 72, allowing adjustment of the height of the tank (rotation being prevented by guide pins 73, Fig. 6) on a horizontal shaft 50 itself pivotally mounted in tubular bearings 51 attached to a carriage 60 comprising two C-shaped members 61 forming supports for bearing 64 of the rollers 63. The carriage is, itself, mounted for rotation about a vertical stub shaft 41 (Fig. 6), carried by a bottom bearing housing 40 supported by a cantilever web member 32 which is slidably connected to vertical guide rods 35 and to the piston-rod 31 of a double acting air-cylinder 30 via a spring 34 and bolt head 33A. In operation, the air-cylinder is initially actuated to lower the complete assembly 10 to permit "threading- in" of the tube 11. The cylinder is then actuated in the opposite direction to raise assembly 10 to a height appropriate to the size of the tube to be tested and lateral adjustment is effected by movement of the mounting plate 23 (carrying the guide rods 35) in slides 22 and then locking it with respect to base plate 21 by means of screw 24. The height of the tank 70 is then adjusted by screw 72 and the height and orientation of the transducers 12 set as required by the means previously described. Thus, as the tube 11 moves through the assembly the angular relationship of the transducers with respect to the tube is maintained constant since any departure of the latter from strict axial travel results in either : (1) vertical movement of the complete assembly with or against the tension of spring 34; (2) rotation of the assembly about either the vertical stub-shaft 41 or about the horizontal shaft 50; or (3) lateral movement of the shaft 50 in the tubular bearings 51 to allow for which clearances 54, 55 (Fig. 2) are provided. Specification 850,729 is referred to.
Patent GB-680226-A (GB)
Title: Paste-forming vinyl chloride polymer compositions
IPC: C08L27/06
Filed: 1949-09-28
Abstract: A paste-forming mixture comprises a vinyl chloride paste polymer, and a powdery vinyl chloride-vinylidene chloride copolymer in the weight ratio 95 : 5 to 20 : 80, the copolymer containing 0.5-20 per cent, preferably 0.5-14 per cent, by weight of vinylidene chloride units and having a particle size substantially in the range 300-50 B.S. mesh.  A non-solvent plasticizer for polyvinyl chloride such as tricresyl phosphate, or a dibutyl, dihexyl or dioctyl phthalate may be incorporated to form a paste which can be gelled by heating.
Patent GB-815884-A (GB)
Title: Improvements in or relating to sealing devices
IPC: G21D1/02
Filed: 1957-08-07
Abstract: A liquid for use as a seal between relatively moving parts containing gaseous nuclear reaction fission products comprises a suspension of active carbon in a mixture of alcohol and water. The liquid adsorbs or dissolves the fission products without being decomposed by the radioactivity.  In closed circuit thermal power plant using gas from a nuclear reactor, the shaft of a compressor is sealed by the liquid which is circulated to a vessel for removing gas and then back to the seal (see Group XXVI]
Patent GB-834986-A (GB)
Title: Improved apparatus for determining blood loss during surgical operations
IPC: G01N33/483
Filed: 1958-08-05
Abstract: 834,986. Measuring blood loss. RUBRICIUS, J. L. Aug. 5, 1958 [Aug. 6, 1957], No. 25029/58. Class 81 (2). [Also in Group XXXVI] The amount of blood lost during a surgical operation is determined by diluting it with water or other suitable liquid, whereby intracellular electrolytes are liberated into the solution, and sensing the electrical conductivity of the solution. As shown, blood is drawn from the operating site by a pump 18 via pipes 26, 20, into a container 12 containing a measured volume of distilled water 34, and blood-soaked swabs are placed in a mesh basket 36 suspended in the water, which is agitated by an agitator 32 driven by an external motor 30. The conductivity of the blood solution is measured by an automatically self-balancing A.C. energized Wheatstone bridge comprising two electrodes 40 immersed in the solution and a temperaturecompensating thermistor 42, also immersed. The other two arms of the bridge comprise resistors 44, 46 and a common variable resistor 48, the position of the sliding contact 50 of which is varied by a reversible electric motor 56 fed with the amplified error signal from the bridge, to restore balance; motor 56 also drives the pointer of a meter 58 which is calibrated in terms of blood loss. At the end of the operation the solution is pumped out of the container 12 by pump 18. Modifications mentioned include locating the electrodes 40 in the outlet pipe 16 from the container, and continuously circulating the solution; adapting the bridge circuit for manual rebalancing ; and replacing the thermistor 42 with a manually variable resistor.