baber/WOPTO huggingface dataset:
Patent GB-302542-A (GB)
Title: Improvements in and relating to latches for gates and the like
IPC: E05B65/00
Filed: 1928-05-12
Abstract: 302,542. Burnage, A. J. P. May 12, 1928. Lift latches. - A spring- pressed pivoted latch on a gate co-operates with a pawl L pivoted on the gate post. The latch engages the notched end R of the pawl and carries the pawl over into its other extreme inclined position where the pawl in conjunction with the spring pressure of the latch holds the gate shut.
Patent GB-530442-A (GB)
Title: Improvements in or relating to aerial bombs
IPC: F42C1/09
Filed: 1939-05-11
Abstract: 530,442. Projectiles ; fuzes. IMBER, J. May 11, 1939, No. 14084. [Class 9 (i)] An aerial bomb comprising a casing 1 and tail fins 2, has a deformable indiarubber nose 3 which prevents penetration of the target and a passage 6 housing a bolt 5 adapted to be driven in to fire a cartridge 8 which causes the bomb to rebound before the explosion of the main charge. The latter is fired by means of a momentum-actuated body 13 with a striker pin 15 which is driven on to a cap 16 serving to ignite a timefuze attached to the detonator 18. Safety pins 11, 19 are removed before the bomb is released and a shear wire 20 and spring 21 prevent premature detonation of the main charge.
Patent GB-807211-A (GB)
Title: Improvements in or relating to locks
IPC: A47K5/12
Filed: 1955-05-16
Abstract: 807,211. Locks. DAVEY, S. H. May 14, 1956 [May 16, 1955], No. 14116/55. Class 44 A lock comprises two members (side walls of a channelled housing 101, Fig. 7), spaced apart, each having a hole 105 or 106 for the passage of an appropriate key 115 through the two holes 105, 106 successively, parts of the two holes (i.e. the circular portions) being aligned and other offset parts (i.e. the rectangular portions) extending in different directions (diametrically opposite directions) the key 115 having a shank part 116 adapted to pass through the aligned parts of the holes and an offset part 117 adapted to pass through the offset part of each hole so that in order to pass through the holes 105, 106 successively, the key 115 must be rotated after passing through the hole 105 to align the offset part 117 of the key with the offset part of the hole 106, a slide or shutter 107 biased (by a spring 108) to a position to obstruct passage between at least the aligned parts of the holes, cam means 113, 118 operative on passage of the key through the holes successively to move the slide or shutter 107 against its bias to permit such passage, one or more obstructions 114 in the path followed by the offset part 117 during rotation of the key and one or more cut-outs 119 in the part 117 to permit the part 117 to pass the obstruction or obstructions 114. As shown in Fig. 9, the lock housing 101 is carried in saddle members 102, 103 on the back of a soap dispenser described and claimed in Specification 807,209 [Group XIV], the housing being secured by a pin 104 passing therethrough and through the member 102. The slider 107 has a plate extension 112, which normally obstructs the keyhole 106. When the key is passed through a keyhole 52 in the dispenser body aligned with the hole 105 and through the hole 105, the flange 117 of the key engages the cam surface 113 and urges the slider to the left until finally the key adopts the position shown in Fig. 10, wherein the reduced portion 118 at the end of the key shank 116 enters the circular portion of the hole 106; the diametrical edge 121 of the portion 118 engages the end of the plate 112; and the cut-outs 119 are aligned with the lugs 114 on the slider. On rotating the key the rounded surface of the portion 118 cams the plate 112 and thus the slider to the left to completely open the hole 106 whereupon when the flange 117 is aligned with the rectangular portion of the hole 106 the key can be moved upwardly to engage a portion 55 on a vertically slidable strip 53 which then operates a latch for releasing the cover of the soap dispenser as described in Specifilcation 807,209. Specification 807,210 [Group XXVIII] also is referred to.
Patent GB-1166955-A (GB)
Title: Acrylonitrile Copolymer Composite Fibres having improved Crimp Characteristics
IPC: D01F8/08
Filed: 1967-03-28
Abstract: 1,166,955. Acrylonitrile copolymer composite fibres. JAPAN EXLAN CO. Ltd. 28 March, 1967 [26 March, 1966], No. 14169/67. Heading B5B. A wet spun composite fibre comprises two dissimilar polymeric materials in lamellar longitudinal conjugation, each of said polymeric materials consisting essentially of acrylonitrile which has been copolymerized with 5 to 15% by weight of at least one hydrophobic non-crystalline high polymer forming monomer, different proportions of said monomer being present in each polymeric material with the difference being between 0À5 and 3% by weight, said polymeric materials each containing substantially equal amounts of acidic groups, and said composite fibre exhibiting a reversibility of crimp in water when heated in an aqueous medium to a temperature above the glass transition point of the non-crystalline regions of the polymeric materials. Methyl acrylate and vinyl acetate are exemplified as non-crystalline high polymer forming monomers and sulphonic acid groups are the preferred acidic groups.
Patent GB-296123-A (GB)
Title: Speed regulation of asynchronous motors
IPC: H02K17/38
Filed: 1927-05-26
Abstract: 296,123. Shenfer, C., and English Electric Co., Ltd. May 26, 1927. Alternating-current induction machines.-The invention relates to a known arrangement for regulating the speed of an asynchronous motor which is cascaded with a commutator machine driven by an asynchronous machine running on the line and excited by a frequency c h an g e r mounted on the shaft of the main motor and fed from the line, the excitation of the cascaded commutator machine being varied for speed regulation of the main motor by rocking the brushes either on the frequency changer or on the cascaded commutator machine. According to the invention, the current supplied from the line to the frequency converter is passed through the primary windings of the asynchronous machine under speed regulation before reaching the frequency converter. In Fig. 1, which shows a system for speed control by rocking the frequency converter brushes, the asynchronous motor 3 under regulation is cascaded on the secondary side with the commutator machine 10 which is driven by an asynchronous motor 14 on the line 1 and is excited at 9 by the frequency changer 5. The frequency changer is rotor-fed at 8 from the line through the primary windings 2 of the motor 3 and has pairs of brushes 6, 7 to which the stator coils 9 of the machine 10 are connected. One set of the brushes 6 or 7 is adjustable for the speed control. The commutator machine 10 preferably has compensating windings 12. The arrangement gives a corresponding effect by increasing the excitation of the cascaded machine 10 when the load on the main motor increases, and the speed of this, motor is thereby reduced. Fig. 2 shows the second method, wherein the second set of brushes 7 and the stator windings 9 of Fig. 1 are omitted and the rotor winding of the cascaded machine 10 is employed for excitation in addition to load current. The exciting current is brought from the frequency changer to the cascaded machine by means of a second set of movable brushes 15 movement of which with respect to the fixed brushes 11 gives the speed control of the main motor.
Patent GB-238981-A (GB)
Title: Improvements in or relating to airships
IPC: B64B1/40
Filed: 1924-06-12
Abstract: 238,981. Airship Guarantee Co., Ltd., and Wallis, B., N. June 12, 1924. Airships; cars and cabins.-The main loads such as the cars for passengers and crew are suspended from the framework symmetrically on the two sides of an airship within the outer envelope, a ventilated space being provided between the cars and the gas bags. An airship is described having a pair of cars on each side suspended by cables F from the junctions of two longitudinal girders A<1> with three successive transverse frames. Each car is in two tiers e, e<1> connected by a staircase e<4>, and a staircase e<2> gives access from each car to a longitudinal passage G extending from front to rear of the airship. Additional staircases located within the built-up transverse frames as described in Specification 233,021 may connect the cars on opposite sides of the airship. The gas bags are shaped to accommodate the cars from which they are separated by a light frame covered on its inner and outer surfaces J, J<1> by a material impervious to hydrogen. This space is ventilated by cowls projecting through the envelope. The cars have windows e<3>.
Patent GB-168152-A (GB)
Title: Improved means for regulating the speed of electrically driven rolls such as are employed on paper making machines
IPC: D21F7/02
Filed: 1920-05-26
Abstract: 168,152. Boyle, A. L. May 26, 1920. Driving-mechanism; stretching-mechanism. - In apparatus for regulating the speed of electrically-driven rolls such as are employed in paper machines, according to the variation in tension of the paper web, a shaft e is turned by the movement of a roller a, which is pressed against the web b by weights g' or by springs. The shaft e carries, on an extension, a worm in gear with a worm-wheel by which the brushes of the electric driving-motor are adjusted.
Patent GB-423028-A (GB)
Title: Improvements to machines for crushing metal turnings
IPC: B02C18/12
Filed: 1933-05-18
Abstract: 423,028. Mills and apparatus. WRIGHT, S. A., Linden House, and GREENWOOD, J. E., 11, Westborough Drive, both in Halifax, Yorkshire. May 18, 1933, No. 14362. [Class 59] In a machine for crushing metal turnings comprising a hopper E fitted with spiral knives F adapted to co-operate with knives G carried by a rotary shaft H passing through the hopper, the turnings pass to a bottom cutter J after being crushed by the knives, and a chip-clearer b mounted on the shaft below the cutter J and having four teeth, Fig. 3, of different radii and shapes, is adapted in one revolution to clear the space at the back and sides of the boss a supporting the shaft.
Patent GB-1219652-A (GB)
Title: Multi-layer, light-emitting semiconductor diode
IPC: H01S5/40
Filed: 1968-03-26
Abstract: 1,219,652. Semi-conductor laser diodes. R.C.A. CORP. 26 March, 1968 [29 June, 1967], No. 14412/68. Headings H1C and H1K. A semi-conductor laser device comprises at least a pair of PN junctions optically coupled upon excitation and arranged so that when one junction is forward biased the other is reverse biased. The diode 10 comprises a stack 11 of layers 12-23 of one micron thick alternate layers of N-type and P-type semi-conductor material such as GaAs, GaAs x P 1-x , InP, InAs, GaSb or GaIn x As 1-x  formed by successive epitaxial depositions of the layers from the vapour phase and doped by tellurium or zinc. End faces 36, 38 are polished and/or cleaved to form a resonant cavity. A continuous or pulsed D.C. is applied to terminal 48 so that junctions 24- 29 are forward biased and junctions 30-34 are reverse-biased and stimulated emission takes place in junctions 24-29, light being emitted from partially transmitting end faces 36, 38. Since the thickness of each of the layers is only one micron the layers are optically transparent to the stimulated emission of radiation so that the emission from separate layers are synchronized. The voltage applied across the device may be alternating so that lasing takes place adjacent only one half of the junctions in one half cycle of the alternating current and adjacent the other half of the junctions during the second half cycle. The diode may be operated at room temperature or 77 K. Sides 40, 42 may be roughened so as not to reflect light or lapped so that they are not perpendicular to the PN junctions. The device may operate as an amplifier.
Patent GB-667937-A (GB)
Title: Steering means for mechanically-propelled vehicles, particularly tractors
IPC: A01B69/00
Filed: 1950-06-09
Abstract: 667,937. Steering motor vehicles. SCHROTER, K. June 9, 1950 [Oct. 28, 19491, No. 14442/50. Class 79(v) A vehicle has its front and rear wheels steerable in the same direction, the movement of the rear wheels being less, preferably a half to one-third, than that of the front wheels. The arrangement is particularly suitable for agricultural tractors when working across a slope, the tendency of the rear wheels to slip sideways down the slop thereby being counteracted. Provision may be made for lifting the front wheels clear of the ground when the tractor is coupled to a tractor, so that the tractor runs on and is steered by the rear wheels only. As shown, the steering drop arm 2 is connected to the front wheels by a dray link 3 and to the rear wheels by a drag link 4, the points of attachment of the drag links to the drop arm being arranged to give a reduced steering effect on the rear wheels. The point of attachment of the rear drag link 4 to the drop arm is adjustable so that the rear wheel steering effect may be varied down to nil. The front wheels may be carried by pivoted arms and power-operated means provided to lift the front wheels to the dotted line position so that when the tractor is coupled to a trailer it acts as a two-wheeled motor forecarriage.
Patent GB-218459-A (GB)
Title: Improvements in electric buoy lights
IPC: B63B22/16
Filed: 1923-06-01
Abstract: 218,459. Ravenhill, H., and Grieve, W. June 1, 1923. Battery lamps.-An electric buoy lamp comprises a battery receptacle a provided with a socket or fitting b for attaching the lamp to the buoy mast, and an upper casing e holding the lamp bulb d, the protecting glass f, a handle g, and contacts h adapted to be brought, by rotating the casing e upon the receptacle a, into and out of contact with the battery terminals i, and bolts m carried by one of the members a, e engaging in slotted brackets l attached to the other to enable the members to be clamped in a watertight manner in either of two relative angular positions for switching the light on and off.
Patent GB-1139662-A (GB)
Title: Method and apparatus for printing black and white or colour films
IPC: G03B27/72
Filed: 1967-03-30
Abstract: 1,139,662. Contact printing apparatus. GEYER MASCHINEN-UND APPARATEBAU G.m.b.H. March 30, 1967 [April 25, 1966], No. 14552/67. Heading G2A. A method for printing black and white or colour films in which the original and blank films 12 are moved in contact and at constant speed over a printing slot 4 which is illuminated by a light beam interrupted at intervals depending on the film speed, the light beam being limited to a height corresponding to the frame height and being reciprocated across the slot, moving in a direction opposite to the direction of film travel during the interrupted periods. Apparatus for carrying out this method is characterized in that a continuous printing machine 3 operated by the contact method, there is provided a constant light source 5 with a shutter 7 rotating synchronously with the film speed or a flash-lamp (17) Fig. 2 (not shown) actuated at intervals depending on the film speed, the light beam therefrom being conducted by a guiding rod 8 to the printing slot 4 and a pivoting shutter 9 providing the reciprocating of the light beam across the slot. The shutter 9 may be driven directly from a cam plate 14 driven synchronously with film driving mechanism, or the shutter 9 may be fixed on the front face of the rod 8 which is arranged to pivotable and is driven from the plate 14. Between the light source 5 and the rod 8, an apertured belt 18, movable during the dark period of the light beam, or another subtractive or additive control device is provided for controlling the light intensity required on changing scenes in black and white films and the colour value in colour films.
Patent GB-152593-A (GB)
Title: Improved method and plant for the manufacture of tubular wall plugs from string or like material
IPC: F16B13/02
Filed: 1920-05-28
Abstract: 152,593. Rawlings, J. J., and Rawlplug Co. May 28, 1920. Hollow ropes, etc.; machines for making. - Tubular wallplugs are made from threads of string or like material grouped side by side and held together by an adhesive. Twines b are collected on a roller c and then passed through a tank d containing glue, &c. The twines are formed into a tubular bundle by a die-plate e, a mandrel f making the central hole. An oven g dries the tube, and rollers h, i shape and compress it. A suitable cutter j divides the tube into plugs.
Patent GB-497552-A (GB)
Title: Manufacture of nuclear-alkylated 6:6-dinitro and 6:6-diaminostilbene-2:2-disulphonicacids
Filed: 1938-05-17
Abstract: A process for making nuclear-alkylated 6,61 - dinitrostilbene - 2,21 - disulphonic acids consists in treating a 6-nitro-1-methylbenzene-2-sulphonic acid containing an alkyl group as a substituent with an oxidizing agent.  Subsequent treatment with a reducing agent gives alkylated 6,61-diaminostilbene-2,2-disulphonic acids.  In the example the Mg salt of 6-nitro-4-isopropyl-1-methylbenzene-2-sulphonic acid is oxidized with Na hypochlorite in the presence of NaOH to give the Na salt of 6,61-dinitro-4,41-di-isopropylstilbene-2, 21-disulphonic acid. Treatment of this with Fe turnings and acid gives 6,61-diamino-4,41-di-isopropylstilbene-2, 21-disulphonic acid.  Both the dinitro and diamino compounds are used as dye intermediates.
Patent GB-233179-A (GB)
Title: An improved method of and means for manufacturing embossed or intaglio name and number plates
IPC: G09F7/16
Filed: 1924-06-18
Abstract: 233,179. Rist, D. A. V. June 18, 1924. Embossing.-Embossed or intaglio metal name and number plates are embossed by a semi-shearing action so that the edges of the raised portions of the pattern are vertical and formed with sharp angles or outlines. The male portion 7 of the die is an exact fit to the counterpart 8 and is arranged to displace part of the metal sheet 10 as shown. Specification 1236/00 is referred to.
Patent GB-418010-A (GB)
Title: Improvements relating to electric cooking apparatus
IPC: F24C15/10
Filed: 1933-05-22
Abstract: 418,010. Electric hot-plates. NEEDHAM, W., Cartmel, Broadoaks Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 22, 1933, No. 14772. [Class 39 (iii).] A heating-unit for a cooking-stove comprises a structure 6, adapted to be secured to the stove and a frame 11 carrying a heating element 1 forming a hot plate and the frame is supported by the structure 6 through the medium of levelling screws 8 adjustable from above and is rigidly clamped to the structure by at least one tension member, which may comprise a central screw 13, also adjustable from above. The element 1 may be hinged to a pan reflector 5 as described in Specification 363,774 or may be hinged to the frame and provided with a loose reflector as described in Specification 415,107.
Patent GB-363949-A (GB)
Title: Improvements in or relating to apparatus for fixing capsules or sealing bands on bottles and other containers
IPC: B67B3/14
Filed: 1931-05-19
Abstract: 363,949. Capsuling bottles. FRANKLIN, J. S., 5, Addiscombe Grove, Croydon, Surrey, and GENERAL ENGINE & BOILER CO., Ltd., Hatcham Ironworks, Pomeroy Street, New Cross, London. May 19, 1931, No. 14808. [Class 125 (ii).] In apparatus as described in Specification 249,741, [Class 125 (ii), Bottles &c., Filling &c.], for fixing capsules &c. on bottles &c. by spinning, the cam discs A, A<1> for adjusting the spinning rollers G<1> radially are carried by a spindle C<1> in an arm Q vertically adjustable on a pillar R, one disc A having a forked lever J<1> engaging the pillar and the other disc A<1> a hand-lever J<2>. The cap C is replaceable to suit capsules of different sizes. The table T, which is lifted by a lever V and pedal, carries a mat Y and a device for centring the bottle O, and together with the bottle O, cap C, and spindle C<1> is rotated by a lever U or by power. The operating surfaces of the rollers are less inclined to the vertical axes than in the said prior apparatus.
Patent GB-560937-A (GB)
Title: Improvements relating to remote controls
IPC: F16C1/26
Filed: 1942-10-22
Abstract: 560,937. Bowden mechanism. PARR, B. A. Oct. 22, 1942, No. 14819. [Class 80 (iii)] Consists in means for enabling a Bowdentype control to transmit movement through a partition, bulkhead or the like separating relatively high and low pressure zones without leakage of fluid through the tubular casing. As applied, e.g. to the wall 21 of the pressure cabin of an aircraft, the outer casing 1 is in sections which enclose an inner member, e.g. such as that described in Specification 375,115, for transmitting push and pull and consisting of a cable 2 on which are threaded barrel-shaped members 3 alternating with tubular members 4. In carrying out the invention a unit is employed comprising two tubular members 5, 6 of practically the same diameter as the casing sections to which they are secured by screwed sleeves 18. The member 5 is enlarged at 7 and screwed internally to receive an enlarged part 8 of the member 6, these parts being secured against rotation by a pin 13. A shoulder on the two parts ensures that when screwed fully together, a chamber 11 is formed within which is a channel-shaped sealing member 14 of rubber &c. which bears, e.g. under the action of a spring 15, against a rigid imperforate rod 12 which is a sliding fit in the members 5, 6 and is connected to the ends of the cable 2. The length of the rod 12 is greater than the maximum travel of the inner member. The unit is preferably so installed that the channel in the sealing member 14 is open to the highpressure zone. The member 8 has a flange 19 secured by rivets 20 to the partition 21. In a modification, the members 5, 6 are dispensed with, the casing sections 1 being directly connected by spigot and socket members.
Patent GB-420014-A (GB)
Title: Improvements relating to turret and other large time pieces
IPC: G04C15/00
Filed: 1933-05-23
Abstract: 420,014. Electric clocks. POTTS & SONS, Ltd., W., Bankfield Terrace, Leeds, KIRKALDY, W. J. F., Elgin, Brownberrie Lane, Horsforth, near Leeds, and MACDONALD, W. J., 151, Kirkstall Lane, Headingley, Leeds. May 23, 1933, No. 14831. [Class 139] In a turret or other large timepiece having a number of dials, the hands are driven by a synchronous motor A through worm and bevel gearing G, F and a train of wheels B, which are mounted in bearings in a casing containing the motor. The worm wheel is connected to the main driving shaft H by a clutch M, which may be disengaged from the worm wheel to enable the shaft to be turned by a knob Q to set the hands. The driving shaft runs in graphite bearings and the train of wheels in oil in the bottom of the casing, which is made in two parts connected together at the axes of the wheels.
Patent GB-109858-A (GB)
Title: Grenades.
Inventor: VALENTINE HENRY SCRIMGEOUR
IPC: F42C14/02
Filed: 1916-10-19
Abstract: 109,858. Valentine, H. S. Oct. 19, 1916. Projectiles; projectile fuses.-Consists in providing a timefuse grenade with frictional contact igniting-means operated by spring mechanism arranged within the grenade body. In the grenade shown in Fig. 1, the fuse-length e, tipped with sulphur or the like, is surrounded by one or more springs f acting upon a sleeve j. When a safety-pin m is pulled out, the sleeve, which is preferably roughened externally, is forced upwards by the spring f, and ignites match-heads l by friction. Several devices for securing the .match-heads in position are described. A plug h has an extension i which prevents displacement of the fuse e. The detonator d may be supported by an extension of the bottom plug. The igniting- mechanism may be modified so that a spring in tension instead of in compression may be used. In the modification shown in Fig. 5, the igniting- mechanism is in a side chamber cast in one with the main body a of the grenade which is approximately elliptical in cross-section. In this construction, the sleeve is dispensed with, the spring f igniting the match heads directly. The fuse e and detonator a are, in a further modification, arranged in a recess in the wall D between the two chambers