baber/WOPTO huggingface dataset:
Patent GB-239164-A (GB)
Title: Improvements in or relating to laminated springs
IPC: F16F1/22
Filed: 1925-02-20
Abstract: 239,164. Libert, G., and Libert, M. Aug. 30, 1924, [Convention date]. Laminated springs are constructed with some leaves initially of less curvature than the adjacent leaf on each side, as shown in Fig, 2, the whole being clamped together as shown in Fig. 1. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the leaves of less curvature being also of greater thickness than the other blades. This subject-matter does not appear in the Specification as accepted.
Patent GB-764667-A (GB)
Title: Improvements in television test pattern generators
IPC: H04N17/00
Filed: 1955-02-17
Abstract: 764,667. Television. ATELIERS HANSET. Feb. 17, 1955 [Jan. 17, 1955], No. 4745/55. Class 40 (3). [Also in Group XL (c)] A signal generator for providing on the screen of a television receiver either vertical or horizontal bars, or a pattern formed of a mixture of vertical and horizontal bars, comprises two multivibrators 1, 2, the first operating at a multiple of line frequency and the second at a multiple of frame frequency, and a mixing circuit consisting of capacitors 3, 4, a common resistor 5 in the grid circuit of triode 6 and a three-position switch 31 permitting the multivibrator outputs to be selected alone or in combination. Triode 6 operates with zero grid bias to effect positive limitation at the grid and applies its output to a second triode 7 which is provided with normal cathode bias but includes a rectifier 19 in its grid circuit so as also to effect positive limitation of the signal. The final video signal through condenser 18 is applied to a heptode or hexode stage where it modulates a radio-frequency carrier provided by an associated triode oscillator stage operating over the bands normally occupied by television, radio and entermediate frequencies. The H.T. supply to the triode oscillator is arranged so that it may be cut off to make available the video signal alone. The multivibrators 1 and 2 may be synchronized by means of an internal oscillator. Condenser 3 in the output of multivibrator 1 is made adjustable so that the relative amplitudes of the two multivibrator outputs may be carried. A neon indicator is connected in H.T. supply circuit, Fig. 4 (not shown), to indicate when the generator is working.
Patent GB-553621-A (GB)
Title: Improvements in conrolling apparatus for the displaceable elements of water gas manufacturing plant and other plant involving cyclic changes
IPC: C10J3/24
Filed: 1942-04-13
Abstract: 553,621. Valve and like actuating mechanism. POWER-GAS CORPORATION, Ltd., and BALLINGALL, J. M. April 13, 1942, No. 4814. [Class 135] [Also in Group XII] A control apparatus for use in a plant in which various elements, such as the valves of a water gas or hydrogen manufacturing plant are displaced in a predetermined sequence has the elements periodically coupled to a constantly reciprocating or oscillating part by cam controlled flexible-jaw couplings said coupling being effected at a point in the movement of the oscillating member where its velocity is substantially zero. In the form shown in the Figure the valves or other elements are coupled to draw bars 24 guided by rollers 50 and are operated at the appropriate times by a lever 40 oscillated by a shaft 39 under the control of continuously rotated cams 2, preferably rotated step by step by a pawl and ratchet from the shaft 39. One end of the lever 40 is provided with a pair of spring-loaded retractable jaws 47, 48 adjustably mounted on a pivot and adapted to co-operate with a pin 49 on the draw bar 24. Normally engagement with the pin is prevented by pivoted masking levers 52 and at the same time the bar is locked by one of two spring-loaded locking pins 27, 28 engaging one of two notches 25, 26 in the bar 24. The masking levers and the locking bolts are moved to their inoperative positions by bellcrank levers 38 coupled at the appropriate time by catches 13 to a pin 41 on the lever 40. The catches are each connected by a link 12 to a notched sliding member 11 held in the raised position by spring-loaded locking catches 7. These are released at appropriate times by cams 2 engaging levers 5 bearing on abutments 6 on the rods 7. The cams may be put out of operation by means of a hand lever 16 having a projection 17 adapted to engage a recess 18 in a lever 19 having lugs adapted to hold the levers out of contact with the cams. The catches 7 are then released by knobs 20. Cams 63 on the bar 24 act through links 65, bell-crank levers 67 and links to reset the catches 13. In a modification pivoted jaws in the oscillating lever co-operate with a pin on a lever mounted on the shaft 39 and having a pin and slot connection with the draw-bar. In this form the catches 13 are reset by the pin 41 co-operating with cams on the catches.
Patent GB-981330-A (GB)
Title: Improvements relating to baths
IPC: F24H1/00
Filed: 1960-02-11
Abstract: 981,330. Baths; waste plugs. H. E. CATCHPOLE. May 11, 1961 [Feb. 11, 1960], No. 4939/60. Heading A4N. A bath 1 contains a main bathing part and a compartment 6 containing a heating unit separated from the main part by an apertured member 4 providing communication between the two parts. A water supply conduit 8 and a waste outlet 10 communicate with the compartment 6. The heating unit of elements 17 includes a thermostat 18 regulated by a temperature control 20. The flow from the conduit 8 is regulated by a float valve 9 actuating a switch 22 to connect the elements 17 to an electric supply. The valve 9 holds the switch 22 in circuit when the water is at a predetermined level in the bath 1 and releases it when the water falls below it. The compartment 6 has an overflow 15. The bath 1 may have an outer casing having in one or both of its long sides a depression for means such as a radiant heat element or elements. Towel rails may extend from the bath 1. The outlet 10 may be closed by a plug 12 fitted to a rod 13 with a knob 14.
Patent GB-576271-A (GB)
Title: Improvements in or relating to the manufacture of synthetic rubber
IPC: C08K5/17
Filed: 1943-03-26
Abstract: Synthetic rubber of the butadiene type, e.g. butadiene-styrene and butadiene-acrylonitrile rubber, is vulcanized to produce a product more nearly resembling natural rubber, by adding to the mix, containing sulphur, an organic accelerator and cyclohexylamine, dicyclohexylamine, or a compound thereof with a hydroxy aromatic compound containing one or more hydroxyl substituents in the nucleus, but no other substituent except one or more hydrocarbons, e.g. o-, m- or p-cresol, catechol, resorcinol, quinol, a - or b  - naphthol, or a benzylated cresol, particularly cyclohexyl-ammonium cresylate or cyclohexylammonium resorcinate.
Patent GB-1203904-A (GB)
Title: Improvements in and relating to photo-copying machines
Inventor: SUZUKI SHIGERU
IPC: G03B27/50
Filed: 1969-01-29
Abstract: 1,203,904. Photo-copying apparatus. RICOH K.K. Jan.29, 1969 [Jan.3, 1968 (2)], No.4990/69. Heading G2A. In a photo-copying machine 11 having a movable exposure arrangement (6) Fig.1, (not shown) for line by line scanning of an original, e.g. a book, on a platform 8, there is provided a device for limiting the range of movement of the arrangement (6) in dependence upon one dimension of a copy sheet 10, and then returning the arrangement to its initial position ready for the next scanning traverse of the platform 8. A copy sheet 10 is placed on a table 7, the knob 13a of a rod 13 is aligned vertically above the left hand edge of the sheet 10 and then rotated until the rod 13 engages a movable member 16, thereby locking a projection 20a of a positional member 20 relative to the member 16. The table 7 is pushed into the machine, an original is placed on the platform 8 and a button 6a is pressed to cause the arrangement (6) to scan the original, moving from right to left as seen. Eventually a portion 21e of an abutment arrangement 21 carried by the exposure arrangement (6) engages the projection 20a thereby moving the member 16 to the left Fig.3 against the action of a spring 19. This causes a portion 16a of the member 16 to tip a microswitch 22, causing the exposing light (4) to be shut off and the exposure arrangement (6) to return to its original position, thus allowing the member 16 to return to the position shown under spring action. The exposure arrangement (6) contains three mirrors (3a, 3b, 1), a lens (2) and a slit (5) as well as the lamp (4).
Patent GB-1105315-A (GB)
Title: Catalytic synthesis of melamine
IPC: C07D251/60
Filed: 1965-02-04
Abstract: Melamine is prepared by vaporizing urea, or other melamine precursor, in a catalytic fluid bed heated to 520 DEG -750 DEG  F. comprising activated alumina having an internal surface area of 10-80 sq. m/g., the bed being fluidized by passing ammonia in weight ratio of at least 0.7:1, relative to urea, into the bottom of the bed, and passing an intermediate process gas stream comprising urea, melamine, ammonia and carbon dioxide from the fluid bed to a catalytic fixed bed heated to 600 DEG -750 DEG  F. and comprising activated alumina having an internal surface area in the range 10-80 sq. m/g.  Ammonia vapour at a temperature below 500 DEG  F. may be dispersed into the upper portion of the fixed bed, together with the intermediate gas stream, to moderate the reaction.  A plurality of fixed beds may be employed.  Melamine may be recovered by cooling the gas stream from the fixed bed to below 610 DEG  F. to condense solid melamine.  The process is illustrated by reference to a flow sheet (not shown). Reference has been directed by the Comptroller to Specification 910,197.
Patent GB-548707-A (GB)
Title: Improvements in chutes for feeding or conveying ammunition or other bodies
IPC: F41A9/57
Filed: 1941-04-18
Abstract: 548,707. Shoots. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. April 18, 1941, No. 5038. [Class 78 (i)] [Also in Group XXI] A flexible shoot comprises a series of metal frames 1 positioned side by side so as to provide a channel 3 for ammunition 2 or other articles and yieldingly spaced from one another by lengths of rubber 4, 4a, 5 which extend across the edges of the frames and are formed to present continuous guiding and supporting surfaces projecting within the frames from opposite sides. The shoot may be used to connect an ammunition box to a gun, and may be twisted about its longitudinal axis or bent sharply along its length. The ends of the frames are embedded in the rubber strips 5 which are preferably more softly vulcanized than the strips 4. A bead 5a is formed on one of the strips 5 to serve as a guide for the base 2b of a cartridge. The strips 4, 4a may be formed as one wide strip as indicated in dotted lines in Fig. 1. A lubricant such as graphite may be incorporated in the rubber mix to assist free sliding of ammunition &c. through the shoot.
Patent GB-994588-A (GB)
Title: Process and apparatus for fire-hardening pellets
IPC: C22B1/24
Filed: 1963-02-07
Abstract: 994,588. Sintering apparatus. METALLGESELLSCHAFT A.G. Feb. 7, 1963 [Feb. 12, 1962], No. 5073/63. Heading F4B. In apparatus of the Dwight-Lloyd type for burning cement or hardening ore pellets comprising the travelling grate 2 moving between windboxes 3 and a hood structure 4 arranged to produce an updraught drying zone 7, a downdraught drying zone 12, a preheating zone 21, a firing zone 24, an after-firing zone 28, an initial cooling zone 32 and a final cooling zone 33, a fan 40 supplies air to manifold 39 and windboxes in groups 34 and 35 and thence upwardly through zones 32 and 33, air from zone 32 passing along duct 17 and through ports 18 into zones 21, 24 and 28 to be utilized as secondary air, and another fan 52 exhausts hot gases from zone 28 and part of zone 24 through windboxes 26 and manifold 37b passing them along duct 54 to fan 55 which supplies them through manifold 36 and windboxes 11 upwardly into drying zone 7. Air from the final cooling zone 33, which may be diluted with cold air controllably supplied by pipe 49, is driven by fan 42 through pipe 44, first being diverted along pipe 45 and used as primary air in burners 16, 23 and 27 respectively disposed in drying zone 12, preheating zone 21 and firing zone 24. The remainder is supplied either to drying zone 12 along with diluting air supplied by fan 70, or to the inlet or outlet of an extractor fan 9 under control of one of valves 48. Waste gases from zones 21 and 24 are extracted by fan 60 through windboxes 15 and 22 and manifold 37a and discharged to flue 10 by pipe 62. The extent of manifolds 37a and 37b may be controlled by sliding dampers 38 and individual control of certain windboxes is afforded by valves 65. Some atmospheric air may be supplied by fan 57 to manifold 36 to cool the grate. In a modification, Fig. 2 (not shown), part of the air from zone 33 is re-circulated as cooling air below zone 32.
Patent GB-123210-A (GB)
Title: Improvements in the Construction of Ferro-concrete or other similar Structures.
Inventor: WILLIAMS JAMES HENRY
IPC: E04B5/26
Filed: 1918-03-23
Abstract: 123,210. Williams, J. H. March 23, 1918. Concrete vessels.- Tiles forming temporary or permanent centering for ferroconcrete ships and other structures are formed on the inner face with a recess a' on the upper edge, and projections a<4> on the lower edge, and sockets or holes a<7> to receive the ends of the wire or rod ties B. For walls, Fig. 1, the concrete tilling is applied as the courses are laid. The sides of the tiles are grooved, dovetailed, or recessed as at a<5>, and the inner faces are grooved or serrated to key with the filling. Temporary supports and lagging- are used for parts such as floors. Where the tiles are to form a temporary sheeting, the inner faces are smooth and the tie wires are omitted.
Patent GB-397495-A (GB)
Title: Improvements in or relating to looms having stationary weft supplies
IPC: D03D47/24
Filed: 1932-02-22
Abstract: 397,495. Looms with stationary weft supplies. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., c/o British Celanese, Ltd., Spondon, near Derby. Feb. 22, 1932, No. 5296. Addition to 372,374. [Class 142 (ii).] The loop-forming and weft-cutting apparatus described in the parent Specification is provided with a guard 30, Figs. 1 and 2, which extends between the cutting device 31 and the trapping means and keeps the free end of weft, extending from the trapping means after cutting, separate from the weft in a successive loop under formation. The loop limb 21 to be severed is led to the cutting device by a hook 25, mounted in advance of the trapping means on the disc 18, Fig. 2, and on closure of the trappers 17 the adjacent loop limb 27 is moved clear of the cutting means to the upper side of the guard 30. The hook 25 is formed with an inclined horn 28, Fig. 4, so that the tension of the yarn during the loop-forming operation causes the weft to move from the point A to its final position B. Velvet, fur or like material may be provided on the inside of the guard 30 to resist untwisting of the free end of the thread. Specification 381,958 is referred to.
Patent GB-158798-A (GB)
Title: Improvements relating to superheating apparatus in fire tube boilers
IPC: F22G7/14
Filed: 1920-02-21
Abstract: 158,798. Hunter, S., Hunter, H., Neill, J. Feb. 21, 1920. U-tube and like superheaters.-In a steam superheater for tubular marine boilers of the kind comprising U-tubes in the fire-tubes of the boiler, the headers g are located at the rear of the boiler, and the U-tubes f of the superheater each extend through separate tubes a across the combustion chamber b and rest in the fire-tubes d. The tubes a are sealed by fire-clay or metal plugs.
Patent GB-842505-A (GB)
Title: Improvements relating to textile drying and heat treatment apparatus
Inventor: WALSH JOHN
IPC: F26B13/10
Filed: 1958-02-19
Abstract: 842,505. Drying apparatus; fluidized beds for heating lengths of material. SMITH & CO. (WHITWORTH) Ltd., F. Feb. 16, 1959 [Feb. 19, 1958; March 31, 1958], Nos. 5364/58 and 10202/58. Classes 34(1) and 64(2) . Fluidized bed apparatus for drying fabrics in long lengths. comprises a zone 3 in which the heated bed particles in a fluidized state ascend and zones 4, 5, in which the particles descend and are reheated by contact with gas or steam-heated walls 6, 7. The fabric is conducted through the zone 3 whilst fluidizing air emanates from chambers 8, 9. The particle flow rate from zones 4, 5 to zone 3 is controlled by adjustable gates 14. In a modification, the fabric enters and leaves at the top of the centre zone passing round a roller at the foot of this zone.
Patent GB-525320-A (GB)
Title: Improvements relating to the opening of artificial textile fibres
IPC: B41B11/00
Filed: 1939-02-17
Abstract: 525,320. Opening artificial fibres. PHRIXARBEITSGEMEINSCHAFT. Feb. 17, 1939, No. 5365. Convention date, Feb. 17, 1938. [Class 120 (i)] Artificial textile fibres are opened by passing the fibres, which are in the form of a sliver or band, through a series of rotary beaters or vibrators acting alternately on opposite sides of the sliver or band whereby the fibres are shaken apart from each other; the sliver or band may be spread out to form a thin ribbon during the treatment. As shown, the sliver or band of fibres k is fed by fluted rollers 1 ... 4 which serve to reduce the stiffness of the fibres to a series of vibrators or beaters 5, 6, 7, each consisting of a spindle having arms carrying crossbars a which are covered with leather or like material. The vibrators are driven at regulable speeds and the spread of the fibres is increased by passing them over or under a curved bar c. The treated band of fibres is delivered by rollers 8, 9 through a funnel guide d.
Patent GB-460614-A (GB)
Title: Improvements in or relating to the knitting of hose
IPC: D04B9/46
Filed: 1936-02-24
Abstract: 460,614. Knitting. PERFECTA SOC. ANON. POUR LA FABRICATION DE LA BONNETERIE. Feb. 24, 1936, Nos. 5460 and 5461. Convention dates, March 29, 1935 and Dec. 6, 1935. [Class 74 (ii)] In knitting the leg and foot of hose in a single operation on a full fashioned machine, the heel being subsequently joined thereto, thinner courses 7, knitted with the splicing thread alone, are located between two slack courses 6, 8 in both reinforced side portions 3 of the hose in order to facilitate the running of the hose on the heel knitting machine and the running of the side portions of the foot on the linking machine. These thinner courses are slightly narrower than the heel and are located between the leg 1 and foot 2. To avoid damage by the needles of the heeling machine or the points of a transfer comb, the slack course 6 may be knitted of a stronger thread similar to the cotton thread used for the heel, and may be preceded by a tight course of the same thread. According to one method, the slack courses 8 and the inner edges of the heel portions are linked before the courses 7 are cut through. In a modified method, which avoids turning over the foot portion before knitting the heel portions, a ribbon, plait, elastic, or like strip 11 is sewn along the middle of each thin area 7 and after running the blank on to the points of a comb or on to the needles of a heeling machine the courses 7 are cut between the ribbon and the courses 6, this ribbon enabling the foot to be easily run on to the linking machine. The heeling machine may be a sole knitting machine with the needles of the middle portion of the needle bar, and the sinkers, removed.
Patent GB-1411921-A (GB)
Title: Pilot valve
IPC: F16K17/10
Filed: 1973-02-05
Abstract: 1411921 Fluid-pressure servomotor systems J E LONERGAN CO 5 Feb 1973 5527/73 Heading G3P A pilot valve for controlling a main pressure relief valve has a control port 11 for connection to the actuation chamber (14) of the main valvemember (16), a port 13 for connection to the pressure vessel (18) to be relieved and a vent port 12. An adjustable spring-loading 27 normally holds a valve-member 25 on its seat 24 to close off communication between the ports 11, 12 and a valve-member 35 away from its seat 34 to allow communication between the ports 11, 13. When the pressure in the vessel (18) and thus at port 13 and in chamber 22 rises to the blow-off value, valve member 25 is lifted off its seat 24 to vent chamber 22 and thus chamber (14) of the main valvemember which opens to relieve pressure. Valvemember 25 slides in a cylinder which has a restricted communication with the port 12 via passage 32 so that on initial opening of the valvemember the fluid-pressure passing to vent port 12 acts on the valve-member to accelerate further opening. Simultaneous with the opening of valve-member 25 valve-member 35 seats on its seat 34. When the blow-down pressure is reached in the vessel (18) and thus at port 13 valvemember 25 reseats and valve-member 35 moves off its seat 34. After initial movement of the valve-member 35 fluid-pressure at port 13 enters chamber 39 to accelerate the opening of the valvemember, fluid-pressure only passing to the control port 12 after further movement of the valvemember has allowed the lower lateral ports of axial passage 38 in the rod 37 inter-connecting the valve-members to communicate with chamber 39.
Patent GB-525377-A (GB)
Title: Improvements in combined refrigerating and water heating apparatus
IPC: F25B29/00
Filed: 1939-02-20
Abstract: 525,377. Gas burners. STATOR CORPORATION. Feb. 20, 1939, No. 5598. Convention date, Feb. 24, 1938. [Class 75 (iii)] [Also in Groups XIII, XXIX and XXXV] A gas burner M has a pilot jet on a telescopic tube (Fig. 3, not shown) and supplies heat indirectly through a refrigerating system to water in a tank T. An auxiliary water heater A connected to the tank is heated by a burner B the pilot jet P for which is ignited, by flashback through an ignition tube 195 extending to the tip of the burner M, when a thermostat 190 in the tank affects a fuel control device 101 to supply gas thereto through a pipe 193.
Patent GB-342554-A (GB)
Title: Improvements in or relating to devices for the supply of auxiliary air to internal combustion engines
IPC: F02M23/08
Filed: 1930-02-21
Abstract: 342,554. Auxiliary air admission valves. MOSS, A. H., Myrtle Villa, Misterton, Nottinghamshire. Feb. 21, 1930, No. 5776. [Class 7 (ii).] In an extra air admission device of the type that tends to close with increased suction, a cylindrical suction chamber 15 is provided with a threaded extension 16 housing an air valve 10. The valve is adjustably secured to a rubber diaphragm 13, the spring- loading of which may be adjusted by screwing the nipple 34 of the suction pipe more or less into the cover 25 of the chamber. The edge of the diaphragm is secured by the cover 25 through intermediate rings 24, 28 the latter being of rubber. The air admission port opening may be adjusted by a ported ring 32 which also serves as a lock-nut for securing the device to the induction pipe. Indicating marks may be provided on the chamber 15 and on the ring to show the relative positions for maximum opening of the air admission ports. The valve 10 may have a flat or mushroom head. Specification 223,182, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.