baber/WOPTO huggingface dataset:
Patent GB-347803-A (GB)
Title: Motor power plant using combustion products and steam
IPC: F02B47/02
Filed: 1930-02-28
Abstract: 347,803. Motor power plant. GEORGE, J. W. and BENNETT, A. T., 73, Gower Street, London. Feb. 28, 1930, No. 6718. [Class 110 (iii).] The cylinder-head of an internal-combustion engine is provided with one or more auxiliary spring-loaded valves 10 for admitting the explosion gases from the cylinder or cylinders to a chamber 8, water or water vapour being admitted under pressure to the chamber by one or more valves 33 actuated from the valves 10 and the resulting mixture being employed to drive an auxiliary engine separate from, combined with, or geared to the internal-combustion engine. As shown, the cylinder head of a four-stroke side-vale engine comprises upper and lower parts 1, 2, the part 2 being formed with recesses 4 extending over the cylinders and inlet and exhaust valves, and with a threaded bore 5 for an ignition plug. The parts 1, 2 are hollowed to provide the chamber 8, which communicates with each cylinder by way of a passage 9 normally closed by a valve 10 having a skirt portion 13 sliding in a cylindrical wall 14. The valve spring 12 maintains the valve closed during compression but allows the valve to open when the charge is ignited. A partition 15 co-operates with the wall 14 to form a chamber 16 in communication with the water-jacket 17, so that the valve 10 is cooled. Water or water vapour for admission to the chamber 8 may be drawn from the water-jacket 17 and is supplied under pressure by a reciprocating or rotary pump through a pipe 35 (not shown), branches 36, and passages 37 to the body 31 of the valve 33. The valve stem is reduced at 32a and the valve body terminates in one or a pair of injection nozzles 34. The valve 33 is operated from the valve 10 through a lever 25 pivoted on a bracket 29 by means of a pivot 28, which may be adjustable to vary the extent of opening of the valve 33 relative to the valve 10. Control may also be effected by means of a valve on the water supply pipe, or by varying the stroke of the pump. The plant may consist of an expansion cylinder associated with a pair of four-stroke internalcombustion cylinders operating alternatively and communicating with a common chamber 8 ; an internal-combustion engine in which all the cylinders are associated with a common chamber 8 supplying .a separate expansion engine; or a two-stroke internal-combustion engine, each cylinder of which is associated with a separate chamber supplying a corresponding expansion cylinder.
Patent GB-371535-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04B3/06
Filed: 1931-03-06
Abstract: 371,535. Automatic exchange systems. COVENTRY AUTOMATIC TELEPHONES, Ltd. and COLLYER, J. E., of General Electric Co., Stoke, Coventry.. March 6, 1931, No. 6999. [Class 40 (iv).] Impedances 23 included in a subscriber's feed circuit for local calls are cut out when an outgoing junction is selected by a relay 22 operating over a grounded terminal 18.
Patent GB-840487-A (GB)
Title: A syringe device
IPC: A61M5/315
Filed: 1958-03-05
Abstract: 840,487. Hypodermic syringes. BECKMAN INSTRUMENTS Inc. March 5, 1958 [Aug. 26, 1957], No. 7047/58. Class 81 (2). [Also in Group XXVIII] A syringe comprises a barrel 28, having an outlet needle 30, in which reciprocates a plunger 47. The barrel is clamped by rods 36 to the body 10 which, at its other end, carries a conical member 20, locked by a screw cap 24 to the body 10, which is threaded to receive a screw member 16. The plunger 47 is fixed to a rod 46 which passes through the body and screw member 16 and is provided with a stop 48 at one end and an adjustable stop 53, the two stops co-operating with either end of the screw member 16 to determine the length of stroke of the plunger. The stop 53 is clamped to the rod 46 by screw 54 which slides between two guides 55, the setting of the stop 53 determining the quantity of fluid discharged. If a liquid is being dispensed which tends to vaporize at the needle tip, the screw 16, against which stop 53 abuts prior to discharge, is turned to advance the plunger to dispel the vapour and the plunger is then moved to discharge the liquid without varying the amount discharged. The barrel is preferably made of glass such as " Pyrex " (Registered Trade Mark) and the plunger may be of " Teflon " (Registered Trade Mark).
Patent GB-268539-A (GB)
Title: Improvements in low frequency transformers
IPC: H01F19/02
Filed: 1926-03-15
Abstract: 268,539. Falk, Stadelmann, & Co., Ltd., and Stucltey, F. S. March 15, 1926. Transformers. - A low-frequency transformer comprises a primary winding a and a secondary winding b movable axially one within the other, the primary being provided with plug or socket terminals a<1> co-operating with complementary terminals g<1> on an insulating base g so as to be readily interchangeable with windings having a different number of turns. The core is divided, the two halves e, f being carried respectively on insulating plates g, h forming the ends of a telescopic casing j, i. A knob l is secured to the upper plate whereby the core members and windings may be drawn apart, and if desired rotated with respect to each other for effecting regulation.
Patent GB-348039-A (GB)
Title: Improvements in or relating to floating covers for liquid storage tanks
IPC: B65D88/46
Filed: 1930-02-01
Abstract: 348,039. Tanks. WHITE, A. E., 5, Quality Court, Chancery Lane, London.- (Chicago Bridge & Iron Co.; 1305, West 105th Street, Chicago, U.S.A.) Feb. 1, 1930, No. 7232/31. Divided on 346,886. [Class 69 (i).] A seal for the floating cover of a tank comprises a curtain 214 of gastight material, such as asbestos roofing or paper, outside which are plates 211 and inside which are plates 216 acted on by springs 218.
Patent GB-142877-A (GB)
Title: Improvements in the locking of removable joint pins, hingepins, coupling pins and the like
IPC: B25B31/00
Filed: 1918-05-01
Abstract: 142,877. Mepsted, E. May 1, 1919. Cotter, gibs, and pins for cottering. - A locking-device for a joint, hinge, or coupling pin comprises a r o d l extending through an eccentric bore in the pin a and formed with a bent end o lying in a transverse groove a'. By depressing a spring-pressed head m, the end o can be turned in the opposite direction, so. as to lie wholly within the groove.
Patent GB-194146-A (GB)
Title: Improvements in or relating to supports for garden lines
IPC: A01G1/12
Filed: 1922-03-14
Abstract: 194,146. Cox, J. March 14, 1922. Lines and line-reels.-A garden line support is formed of two pieces of wood each about 17 inches long joined at their centres to form a cross, this giving a measure of about one foot from point to point. Brackets K attached to this support carry a ratchet-real L, and the line from the reel passes through a hole in the centre of the support.
Patent GB-295957-A (GB)
Title: Improvements in wireless transmission and reception
IPC: H03B5/34
Filed: 1927-03-17
Abstract: 295,957. Robinson, J. March 17, 1927 Modulating systems and apparatus.-The amplitude and mean frequency of a carrier wave are maintained constant, and the frequency is varied in accordance with the signal. The Figure shows a piezo-electric crystal Q associated with a diaphragm P<1> of a sound box or microphone M and adapted to control the frequency and to effect frequency modulation. In a modification a microphone is used and the amplified energy applied to a telephonic receiver the diaphragm of which is associated with the piezo-electric crystal. The frequency variation is preferably small and within the limits imposed by one half of the crevasse of a piezo-electric resonator and the frequency of the variation may be either sonic or supersonic. Reception is preferably effected by the supersonic method so that signals of a constant frequency may be applied to a tuned circuit shunted bv a piezo-electric crystal. Specifications 275,581 and 285,108 are referred to.
Patent GB-589533-A (GB)
Title: Improved ultraviolet transmitting glass
IPC: C03C3/091
Filed: 1945-03-26
Abstract: 589,533. Glass manufacture. HADDAN, R. (Corning Glass Works). March 26, 1945, No. 7582. [Class 56] An ultra-violet transmitting glass, having a transmission in 1 mm. thickness of at least 15 per cent for light of wavelength 185 millimicrons, is made from a batch comprising 50-70 per cent silica, 4-10 per cent alumina, 1-5 per cent alkali metal oxide and 20-40 per cent boric oxide, in which the molecular ratio of boric oxide to alkali metal oxide is greater than 2 to 1 and the percentage of alumina is not less than the percentage of alkali metal oxide. The glass is substantially free from colouring oxides and oxides of zinc and antimony and may contain 0.1-1 per cent calcium oxide.
Patent GB-1046527-A (GB)
Title: Method for improving the dyeability of shaped structures of polymeric compositions
IPC: D06P1/651
Filed: 1964-02-24
Abstract: The affinity of shaped structures comprising at least a major proportion of polyolefin materials for acid, basic, disperse and vat dyes is improved by treating the material with a liquid medium containing an organic swelling agent, the diffusion of which into the shaped structure is enhanced by deforming e.g. stretching and/or shrinking the shaped structure before and/or after the swelling agent is applied.  Any acidic, basic or neutral organic compound may be used as swelling agent and is applied in its pure state or from an aqueous solution, dispersion or emulsion, many organic compounds are listed.  When an acidic swelling agent is used a basic dye is used for dyeing and vice versa, neutral swelling agents are used in conjunction with dispersion dyes for dyeing.
Patent GB-1488414-A (GB)
Title: Variegated fibres filaments and yarns
IPC: D06B11/00
Filed: 1975-02-24
Abstract: 1488414 Variegated polyester fibres, filaments or yarns ROHM & HAAS CO 24 Feb 1975 [14 March 1974] 7676/75 Headings D1B and D1L Variegated polyester fibres, filaments or yarns are prepared by non-uniformly applying to a spool of undrawn or partially drawn polyester, typically having a denier of 200-600, a liq. or soln. which alters the affinity of the polyester for dyestuff, the polyester then being dyed, optionally following drawing and false twisting. The liq. or soln. is applied non-uniformly using an apertured mask, see Figs. 3-6, placed over one or both ends of the spool. The liq. or soln. may be applied using a dropper, squeeze bottle or spray gun, 1.5-3cc being applied to each aperture for a 11-12 in. diameter spool. The liq. or soln. is preferably 1, 1, 1- trichloroethane but may also include other polyhalogenated alkanes of 2-4 C atoms; a phenol or napthol substituted with alkyl, halo, phenyl or trihalomethyl; an alkanamide substituted with H or alkyl; a benzoic acid ester substituted with alkyl or halo; or a salicylate.
Patent GB-1420477-A (GB)
Title: Apapratus for consolidating supports in mine-workings
IPC: E21D11/15
Filed: 1973-02-16
Abstract: 1420477 Wire fabrics EISENHUTTE PRINZ RUDOLPH AG 16 Feb 1973 [16 Feb 1972] 7715/73 Heading D1K For consolidating supports in mine workings, mats made up of longitudinal and transverse rods 2 and 1, to rods 2 extend beyond the rods 1 to form hooks 6 which engage sections 7, 8 of a consolidating frame, at least some of which extend further to form eyes 10, the eyes 10 of adjoining mats being joined by connecting means which with the ends of the rods encircle the sections.
Patent GB-287454-A (GB)
Title: Improvements in and relating to electric protective devices
IPC: B60L3/04
Filed: 1928-03-13
Abstract: 287,454. British Thomson-Houston Co., Ltd., (Assignees of Hanna, M. R.). March 19, 1927, [Convention date]. Protective arrangements. - To prevent the framework &c. 14 of a trolley bus, or other metal parts of any electrical apparatus normally insulated from live conductors and from ground, from becoming charged to a dangerous potential from conductors supplying the electrical equipment, a series of one-way discharge devices, such as electrolytic cells or vacuum tubes of mercuryvapour or hot-cathode type, is connected between the conductors 17, 18 in the bus or other apparatus and this series is divided into two oppositely directed parts 19, 20, the framework &c. 14 being connected to the junction of these two parts. The trolley wire T1 is earthed at several points and the devices 19, 20 maintain the frame 14 at earth potential whichever conductor 17, 18 is in contact with the wire T1.
Patent GB-478618-A (GB)
Title: Improvements relating to filler feeding mechanism for cigar making machines
IPC: A24C1/02
Filed: 1936-07-17
Abstract: Bunch lengths are formed of long filler tobacco, each containing slightly more tobacco than necessary to form a single bunch charge, and are compressed in succession, individually or together with a portion of a preceding bunch length, and a single bunch charge is separated from the compressed tobacco.  When the quantity of tobacco compressed exceeds two bunch charges the feed of the bunch lengths is interrupted.  A machine for carrying out the invention is described in connection with Figures 2 and 7 to 23 of Specification 478,573. Specification 478,617 also is referred to.
Patent GB-656571-A (GB)
Title: Improved closure cap for liquid containers
IPC: B65D47/06
Filed: 1948-03-16
Abstract: 656,571. Closures for sheet metal containers. WILSON, A. D., and READ'S, Ltd. March 16,1948, No. 7809. [Class 125(iii)] A closure for a sheet metal container 1 consists of a screwthreaded filling neck 2 secured to the container or formed integrally therewith, and a screw-threaded cap for the neck having an aperture 7 in the side and a pouring spout 5 below the aperture, the cap, spout, and neck being pressed out of sheet metal, and the aperture being masked by the neck when the cap is screwed down and uncovered by unscrewing the cap. The spout may be formed integrally with the cap or made separately and joined thereto, and the pouring aperture 7 is preferably in the form of a slot. The cap! may be provided with an air vent 11, sealing disc 9, and knurled or milled peripheral edge 8 to assist turning. The cap may be adjusted so that the aperture is partially uncovered to regulate the discharge, and is removed to refill the container. Preferably the arrangement is such that when, the cap is fully screwed down the spout does not overhang the side, but lies over the top of the container.
Patent GB-231201-A (GB)
Title: Improvements in and relating to fuses for projectiles
IPC: F42C1/08
Filed: 1925-03-23
Abstract: 231,201. Pantoflicek, B. March 22, 1924, [Convention date]. Projectile fuzes.- An adjustable delayaction device or a device producing another selective action in the fuze is adapted to have its action controlled by the position of a gravity member when the projestile is discharged. As shown in Fig. 2, a member 5 having a clear port 2 and a delay patch 3 is slidably arranged in a transverse chamber in the fuze body 10 behind inertia bolts 6, 7 normally held in the forward position by metal cups 13. According to the position of the projectile in the gun, the member 5 slides to one side or the other, thereby bringing the delay patch 3 or the clear port 2 (as shown) in line with the flash passage 1, 4; and when the projectile is discharged one of the inertia bolts 6, 7 sets back and locks the member 5 in the position it occupies, whether for delayed or undelayed action. In a modification, Fig. 3, the gravity ball 8 locks or unlocks an inertia bolt 9, which when unlocked sets back fully on discharge and opens a clear port for the flash, whereas when the bolt is locked the flash is delayed by the patch 3. The ball 8 is retained in the position it occupies on discharge by the partial or complet set back of the bolt 9. Centrifugal force may be used to operate moving parts of the device.
Patent GB-879977-A (GB)
Title: Improvements in semi-conductor devices
IPC: H01L29/00
Filed: 1958-03-11
Abstract: 879,977. Semi-conductor devices. SHOCKLEY TRANSISTOR CORPORATION. March 11, 1958 March 18, 1957], No. 7877/58. Class 37. Fig. 1 shows a P-type body forming a junction 11 with an N-type layer which carries two closely spaced ohmic electrodes 12 and 13. The collector electrode 14 is ohmically connected to the P-type body. The thickness of the N layer may be 1Á and the distance between electrodes 12 and 13 may be 20Á. If a potential of e.g. 20 volts is applied between electrodes 12 and 13 the resulting field results in secondary generation of carriers which enhances the collector current. Increased effect is produced by providing an extra thin portion of the surface layer between the electrodes 12 and 13, as shown in Fig. 3. This may be produced by first diffusing acceptors into an N-type body to provide a surface P-layer, cutting a groove and then effecting a second diffusion process to provide the thin P-type portion. The region adjacent the collector may have increased impurity concentration (e.g. 10<20> atoms cm.<-3>) to restrict the extent of the space charge region at the junction to improve high-frequency performance. A circuit is shown with the input signal applied in series with the biasing potential between electrodes 12 and 13, and a separate biasing source associated with the collector to reverse bias the PN junction. The arrangement may operate as either a current or a voltage amplifier.
Patent GB-472396-A (GB)
Title: Improvements in or relating to halogen derivatives of aceto-propanol
IPC: C07C45/63
Filed: 1936-03-17
Abstract: 3-Halogen derivatives of 3-acetopropan-1-ol are prepared by treating the alcohol with chlorine, bromine or iodine.  Examples are given. The products are useful in the synthesis of the antineuritic vitamin. The Specification as open to inspection under Sect. 91 also describes the halogenation of compounds CH3CO.CH2.CH2.CH2Y, in which Y represents a halogen atom or amino group, and the subsequent conversion of the halogen atom into hydroxyl by treatment with potassium acetate followed by hydrolysis and of the amino group into hydroxyl by treatment with nitrous acid.  The fluorination both of the compounds of the formula given and also of acetopropyl alcohol is included in the halogenation treatment.  The Specification further describes the synthesis of thiazoles by condensing compounds of the type CH3CO.CHXR, in which X is halogen and R represents the group CH2.CH2OH or a group which may be converted into it, with compounds of the type ZCS.NH2, in which Z is hydrogen or a group such as amino and sulphydryl which can readily be transformed into hydrogen.  The Z group in the product may be converted into hydrogen when it is an amino group by treatment with nitrous acid and when it is a sulphydryl group by the action of an oxidizing agent such as nitric acid or hydrogen peroxide.  Similarly, the group R may be transformed into CH2.CH2OH by reduction when it consists of CH2.COOH, CH2.CHO or CH2.COOC2H5, and when it is CH2.CH2Y, the group Y may bs converted into hydroxyl by the reactione described above.  Thus, a halogen derivative of acetopropyl alcohol condenses with a thioamide of the formula ZCS.NH2 to give a thiazole of the formula <FORM:0472396/IV/1> in which X represents a halogen.  An example is given of the condensation in alcohol solution of 3-brom-3-acetopropan-1-ol with thioformamide, which is obtained when formamide is allowed to stand with phosphorus pentasulphide in dry ether, to produce the hydrobromide of 4-methyl-5-b -hydroxyethyl-thiazole.  The free compound may be obtained by treatment with an alkali and converted into its salts such as the sulphate or picrolonate.  By reaction with pyrimidine derivatives, products are formed which are analogous to the antineuritic vitamin.  This subject-matter does not appear in the Specification as accepted.
Patent GB-292682-A (GB)
Title: Improvements in or relating to ammunition loading apparatus for ordnance
IPC: F41A9/11
Filed: 1927-03-23
Abstract: 292,682. Vickers, Ltd., Pearson, E. C., and Ritchie, J. March 23, 1927. Loading- appliances. - Relates to loading apparatus in which is employed a power-operated rammer having a tubular container to receive the powder charges, the front of the container serving to ram the projectile. According to the invention, the casing of the rammer is bodily movable from a receiving position at one side of the gun to a ramming position behind the gun. The invention also includes a projectile tray the movements of which are automatically synchronized with those of the rammer casing. The invention is shown in plan in Fig. 3 applied to the alternate loading of two guns, the rammer C and projectile tray D of one gun X being in position to receive the charges and projectile which are transferred from a hoist-cage E by rams F, whilst the rammer and projectile tray of the other gun Y are in ramming position behind this gun. The tubular rammer C<1> containing the powder charges a, b, Fig. 2, is operated through rack and pinion gear of known type at twice the speed of the hydraulic ramming cylinder C<2> and is provided in known manner with a movable plate to retain the charges in the gun whilst the rammer is withdrawn. The projectile tray D is moved parallel to itself about an inclined pivot D<2> through epicyclic chain gear D<1> from the lower receiving position to the higher ramming position in line with the charges. The traversing movement of the rammer casing is effected through a hydraulic ram G and movable ram cylinder G<1>, which through a recess G<3x> and projection G<2> operates links G<3>, G<5>, and rack G<6>, to effect the synchronous movements of the projectile tray. The pressure and exhaust pipes serving the traversing cylinder G<1> are arranged to serve also the ramming cylinder C<2>, the cylinders being controlled by separate hand-operated slide, valves.
Patent GB-601713-A (GB)
Title: The coating of sheet materials
IPC: B32B27/00
Filed: 1946-03-15
Abstract: Films of polythene are stripped from non-porous backing sheets such as regenerated cellulose or metal foil or glazed paper on to which the polythene has been applied by transferring from a metal surface (see Group VIII).  Natural or synthetic uncured rubber, polyisobutylene, waxes, rosin, bitumen, dyes, pigments, oxidation inhibitors, mineral fillers may be added to the polythene.  The metal surface may be embossed, engraved, patterned or printed. Separating aids can be applied to the backing sheet. Specifications 571,867, 585,186; 600,065, 600,687, [both in Group XXVIII], and 600,999 are referred to.
Patent GB-1137734-A (GB)
Title: Ball joints
Inventor: BRIGGS WALTER HENRY
IPC: F16C11/06
Filed: 1966-02-24
Abstract: 1,137,734. Ball joint BURMAN & SONS Ltd. 2 Feb., 1967 [24 Feb., 1967], No. 8126/66. Heading E2F. In a ball joint wherein a ball ended component 11 engages a part-spherical recess 12 in another component 10, the ball ended component comprises a moulded synthetic resin sleeve 13 having a cylindrical bore, a partspherical outer surface and a flat end face, which is mounted on a rod having a cylindrical end portion terminating in an integral flange 14 having a flat inner face retaining the sleeve, and a part spherical outer face. The latter face is engaged by a complementary face on a pad 15, also of synthetic resin, which is loaded by a compression spring 17, the pad and spring being mounted in a closure cap 16 shaped like a top-hat. Alternatively the spring may be mounted in a recess in the end of the rod. The sleeve and pad are suitably of nylon.