baber/WOPTO huggingface dataset:
Patent GB-1499382-A (GB)
Title: Electronic flash unit
IPC: G03B15/05
Filed: 1975-08-01
Abstract: 1499382 Electronic flash EASTMAN KODAK CO 1 Aug 1975 [1 Aug 1974] 32297/75 Headings G2A and G2X An electronic flash unit which is triggered by a flash-firing signal from a camera comprises i) a switch 72, 77 which enables a triggering signal to be applied to the flash tube 36 in response to the firing signal only when the charge on the firing capacitor 52 is sufficient to fire the tube, and ii) a delay circuit which delays the triggering signal until a predetermined time after the flash-firing signal. The tube firing circuit 5 1 comprises a thyristor 58, triggering capacitor 54 which discharges through transformer 56 to trigger the tube electrode 36a, and firing capacitor 52. A power source for charging the capacitors is included in circuit 59 and the firing signal from a camera mechanism 35 is applied across conductors 33a, 33b. A shutter flash synchronization circuit 70 includes a neon lamp 72 and resistor 74 connected in parallel across capacitor 52. When the capacitor 52 is sufficiently charged the lamp 72 conducts and the lamp and resistor 74, which act as a voltage divider, supply a gate current to thyristor 77. The lamp 72 also glows to indicate the flash tube is ready for firing. If a gate current is now applied to a thyristor 82 by actuating the camera mechanism branch 85 conducts and an R-C time delay circuit comprising variable resistor 80, which permits the circuit timeconstant to be varied, and capacitor 84 is actuated. This supplies after a time-lag, a gate current to thyristor 58, so that triggering capacitor 54 discharges through the transformer and the tube fires. As the charge on capacitor 52 falls, a voltage sensitive neon lamp 78 ceases to conduct and the circuit 70 is reset. Clearly if the capacitor 52 is not sufficiently charged thyristor 77 is not rendered conductive, therefore even if the camera mechanism is actuated the time delay circuit in branch 85 is not brought into operation and no triggering pulse is applied to the tube.
Patent GB-432099-A (GB)
Title: Improvements in or relating to electro-magnetic switches
IPC: H01H50/64
Filed: 1933-11-20
Abstract: 432,099. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Getchell, B. E.; Plainville, Connecticut, U.S.A.) Nov. 20, 1933, No. 32346. Convention date, Nov. 19, 1932. [Class 38 (v)] In order to counteract the tendency in electromagnetic contactors of the hammer blow caused by the attraction of the armature from loosening the fixed parts of the structure the relatively fixed core carrying the energizing winding is pivoted at its lower end and is arranged to have a limited angular motion so that when it is engaged by the armature a limited sliding motion between the armature and the pole pieces of the fixed core takes place, the magnetic grip between these parts absorbing the shock of impact. The armature is connected at its upper end with lost motion to a movable contact carrier sliding in inclined slots in a fixed carrier, the contacts being held closed against a spring. As shown in Figs. 3 and 5 the E-shaped core 38 is carrying the winding 43 is pivoted at its lower end at 41 its upper end normally resting against a crossbar 42. The armature 47 is pivotally mounted at 48 on a carrier 45 pivoted at 46 and when attracted to the core 38 a limited sliding movement under the magnetic grip takes place as shown in Fig. 5 the core 38 moving backwardly to the dotted position. The upper end of the armature carrier bears a pin 51 working in a slot 53 of a link 50 which is pivoted to a lateral pin 33 of a crank cam 30 (Fig. 4). The crank 30 has a second lateral arm 31 connected by a link 32 to an insulating bar 22 carrying the movable contacts, the bar 22 being formed with flattened extensions 26 (Fig. 3) sliding in inclined guideways 27 of fixed side plates. The bridging contacts after engaging the fixed contacts 17, 18 are arranged to slide on a pin 21 against a spring 23 so that the final motion of the armature and core can take place and the contact pressure be re-inforced. On de-energization of the electromagnet the armature core and contact carrier resume their original positions shown in Fig. 3 under gravity. Several sets of contacts may be arranged to be operated simultaneously.
Patent GB-339428-A (GB)
Title: Method of and apparatus for making articles by electrolytic deposition of galvanoplastic metal
IPC: C25D1/00
Filed: 1929-10-24
Abstract: 339,428. Rosenqvist, G. Oct. 24, 1920. Moulds; cells; preparing surfaces. - A mould for making articles by electrodeposition is mounted in a frame so as to form part of the electrolyte container, a lining of flexible material being disposed between the mould and the frame which forms a liquid-tight joint under the pressure of the electrolyte. In the apparatus shown the moulds, consisting of plates 4 having cup-shaped depressions 1 in which deposition is to take place, are disposed around a rectangular frame 7 mounted on a base 13 and are secured by a flanged top frame 8. Between the frame 7 and the moulds is disposed a rubber liner 10 having cut-out portions 11 situated over the depressions 1 but slightly smaller than these. Separation of the liner from the mould due to leakage of fluid between them is prevented by the provision of the grooves 6 surrounding the depressions and communicating with the outside by passages 14 which allow any leaking fluid to pass away without development of pressure. The grooves may be provided in the liner instead of in the mould. In a modification there are two rubber liners, one secured to the frame and another removable with the moulds.
Patent GB-861511-A (GB)
Title: Air humidifier assembly
IPC: F24D5/00
Filed: 1958-10-10
Abstract: 861,511. Air humidifier. WALTON LABORATORIES Inc. Oct. 10, 1958 [May 26, 1958], No. 32448/58. Class 55 (2). An air humidifier comprises a water tank 17 and a cover 18 fitted on the tank to form a housing within which is mounted above an apertured pan 21 a motor-driven atomizer for raising water from the tank and atomizing it, an air inlet 32 in the side wall of the cover and an air outlet 38 in the upper part of the cover partly surrounded by a vane 39 extending in a direction opposite to that in which the inlet opening faces. In use air flows in through the inlet opening over the surface of the water in the tank, up through the pan past the atomizer and out of the outlet opening over the surface of the vane. The inlet opening 32 has a movable damper so that the size of the inlet opening can be varied and the tank has a flange 13 enabling the humidifiier to be mounted in an air duct 11.
Patent GB-775383-A (GB)
Title: Improvements in or relating to rings for finger adornment
IPC: A44C17/02
Filed: 1954-11-10
Abstract: 775,383. Jewellery. SILVER, A. L. and KAYE, B. Oct. 26, 1955 [Nov. 10, 1954], No. 32554/54. Class 43. [Also in Group XV] A ring 1 or similar article of personal adornment has a symbol 3 attached thereto by internally threaded sockets 4 provided at the back of the symbol 3 to receive holding screws 5 which pass through or into holes 2 in the ring 1 and thus into the sockets 4. The sockets 4 are shown as formed in sleeves shorter than the thickness of the ring 1. The ends of the holes 2 are counter-sunk to allow the heads of the screws 5 to be flush with the inner surface of the ring 1.
Patent GB-618209-A (GB)
Title: Improvements in or relating to staplers
IPC: B25C5/02
Filed: 1946-11-02
Abstract: 618,209. Stapling. SIGNODE STEEL STRAPPING CO. Nov. 2, 1946, No. 32593. Convention date, Nov. 2, 1945. [Class 89 (iii)] In a stapling device provided with a pivoted gate 55 for front-end loading, the spring 26 of the follower 25 is adjustable and the sliding driver blade 101 is rockably connected to a spring-raised operating lever 90. The gate 55 is pivoted on a pin 58 slidable in a slot 59 in a frame member 11 and held in the position shown by a lever-operated spring-pressed latch bar 67 engaging notches 71 whereby the front end of the gate rests on projections 85 on the frame. The follower spring 26 is wound on a drum 27 axially movable against a spring to disengage a cross-pin from a slot 38 in the frame to permit rotary adjustment. During loading, the follower 25 is held retracted by a spring-pressed pin 45 engaging a hole 48 therein. Upward movement of the driver blade 101 is normally limited so as to be clear of the staples S by a shoulder 108 engaging a slot 105, but when the gate 55 is opened the blade is free to swing forward about a pin 102 and the slot 105 then engages a shoulder 107 so as to hold the blade in the path of the staples S and prevent ejection thereof.
Patent GB-1497310-A (GB)
Title: Ventilation apparatus
IPC: B60H3/02
Filed: 1975-08-05
Abstract: 1497310 Ventilation apparatus DRAGERWERKAG 5 Aug 1975 [10 Aug 1974] 32764/75 Addition to 1483203 Heading F4V In ventilation apparatus, ambient air 4 passes through a duct 6 provided with a filter 9 which is liable to be deleteriously affected by excessive moisture concentration in the air. So as to reduce the relative humidity of the air supplied to the filter, the air is heated upstream of the filter by a condenser 31 of a refrigerating system 31-36 which includes an evaporator 32. The air is supplied to any chamber for housing a living being. The chamber may be in a mobile device such as an ambulance or a command car or, as shown, a fighting vehicle 2. The air is drawn into the interior 1 by a fan 12 via an intake hood 3, coarse dust filter 7, the duct 6 heated by the condenser 31, the filter 9 (which comprises a fine dust filter 10 and a gas filter 11 for removing undesired gaseous substances in the ambient air), and thence through a duct portion cooled by the evaporator 32. After passing through the interior 1, the air flows through an outlet valve 14. The relative humidity of the air stream supplied to the filter 9 may be automatically controlled by means of a control unit 38 connected to a sensor 37 for measuring the humidity of the intake air and the temperature of the interior 1. The unit controls the temperatures of the condenser and evaporator. Foreign bodies are removed from the coarse dust filter 7 by a fan 39.
Patent GB-807537-A (GB)
Title: Improvements in and relating to mining machines
Inventor: TULLET JAMES GRAY
IPC: E21C35/22
Filed: 1956-10-26
Abstract: 807,537. Machinery guards. COAL INDUSTRY (PATENTS) Ltd. Oct. 18, 1957 [Oct. 26, 1956], No. 32765/56. Class 80 (4). [Also in Group XXI] A machinery guard for a coal-cutting machine of the type having a jib provided with a cutter chain. The guard encloses the part of the cutter jib outside the working face and has a movable part 13 which is resiliently urged towards the tip of the cutter jib so that fenders 14 and 15 engage the working face and form a dust seal (see Group XXI).
Patent GB-486095-A (GB)
Title: Improvements in or relating to sound radiating systems
IPC: H04R27/00
Filed: 1936-11-30
Abstract: 486,095. Sound distributing systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 30, 1936, Nos. 32801, 32802, 32803, and 32805. Convention dates, Feb. 17, 1936, March 18, 1936, March 18, 1936, and Aug. 6, 1936. [Class 118 (ii)] [Also in Group XXXIX] To limit the distance of propagation of sounds from public address loudspeakers a zone of interference is produced by the interaction of sounds radiated by two or more reproducers. As shown in Fig. 1 two sources 1 and 2 radiate sounds which are 180‹ out of phase so that a zone of interference is produced which is symmetrical about the axis 5. A number of pairs of loudspeakers may be arranged in a circle. A curved band of interference as shown in Fig. 6 may be obtained by making the transmissions slightly less than 180‹ out of phase. This phase displacement may be obtained by adjustment of the loudspeaker or by providing a lag in the path of one transmission by delay networks, by recording or by spaced microphones in a sound chamber. To prevent interference between the microphones and loudspeakers, the microphones are placed in the interference zones. Specification 133,394, [Class 118 (ii)], is referred to. The Specification as open to inspection under Sect. 91 includes the subject-matter of Specification 486,038, namely the provision of adjustable deflectors to direct the sound. This subject-matter does not appear in the Specification as accepted.
Patent GB-778705-A (GB)
Title: Production of metal oxides
IPC: C01G31/02
Filed: 1953-11-27
Abstract: <PICT:0778705/III/1> Oxides of Al, Ti, Si, Zn, Sb, Cr, Be, Zr, Co, Ni, B, Cd, Mo and V are prepared by halide hydrolysis by introducing the halide vapour under its own vapour pressure into one end of a cylindrical reaction zone and simultaneously injecting a combustible mixture of a hydrogen and an oxygen-containing gas tangentially into the reactor to burn to form water and hydrolise the halide.  The preferred apparatus is shown in Fig. 2 and forms the subject of Specification 778,706.  The refractory lined reactor consists of an inlet throat 54, a combustion chamber 56 and a reactor chamber 58.  A plurality of inlet ports 60 tangent to the inner wall of the chamber 56 are supplied with the oxygen-hydrogen mixture form manifold 68 and the halide is injected axially from the nozzle 62. In order to avoid absorption of gaseous halide reaction products on the oxide produced, it is preferred to maintain the formed oxid above 600 DEG C. untid it is separated from the gases and to this end a further mixture of combustible gas and air may be introduced tangentially from nozzles 72 at the downstream end of the reactor. A finer size reaction product may be obtained by introducing supplemental air around the injector 62 either as a smooth flowing or whirling stream or outwardly around the periphery of the nozzle.  The reaction products and surface areas above 50 square metres per gram, may be separated from the reaction gases by cyclones and the solids-free gases may be scrubbed to remove acids formed.  Specification 707,389 is referred to.
Patent GB-967766-A (GB)
Title: Improvements in and relating to the contacting of liquid mediums and gases
IPC: C02F3/20
Filed: 1962-08-28
Abstract: Sewage is aerated by gas introduced into the sewage medium by diffuser means 11 arranged in rows to cause gas bubbles to rise in the form of a multiplicity of spaced bands of gasification so that perimeter lines 33 of adjacent bands are <PICT:0967766/C1/1> <PICT:0967766/C1/2> separated by a distance of 40% to 150% of the sum of the widths of the said adjacent bands. Specifications 885,602 and 885,603 are referred to.
Patent GB-1531970-A (GB)
Title: Process for producing xanthomonas hydrophilic colloid for use in displacement of oil from partially depleted reservoirs
IPC: C12P19/06
Filed: 1977-08-05
Abstract: 1531970 Producing xanthomonas colloids PFIZER Inc 5 Aug 1977 [5 Aug 1976 3 May 1977] 33003/77 Heading C3U A fermentation medium containing Xanthomonas hydrocolloids is obtained by cultivating aerobically a Xanthomonas microorganism, preferably X. compestris in an aqueous nutrient containing a carbohydrate, a nitrogen source and 0À1-10 g/l of an assimilable Krebs cycle acid, 1-200 p.p.m. of chelated calcium and 0À25-20 p.p.m. of iron, and trace elements until at least 100 p.p.m. of colloid is present whereby the whole broth produces mobility control solutions suitable for subterranean oil recovery which are free of insoluble matter having particle sizes of above 3 microns.
Patent GB-957979-A (GB)
Title: Esters
IPC: C07C69/58
Filed: 1960-09-26
Abstract: Esters of olefinically unsaturated carboxylic acids containing 10-20 carbon atoms are made by reacting the acid with an alcohol containing up to 10 carbon atoms in the presence of an inorganic hydrogen sulphate, which has no polymerizing activity and which is insoluble in the reaction mixture, at a temperature of 100-180 DEG C., the reaction water being removed from the mixture in the vapour of the unconverted alcohol.  If necessary the reaction is carried out under reduced pressure.  Aliphatic, cycloaliphatic or aromatic alcohols may be used. Suitably the alcohol is added to a mixture of acid and catalyst and heated to 140-160 DEG C. Preferably, the catalyst is potassium hydrogen sulphate. Examples describe the preparation of methyl oleate, ethyl oleate, isopropyl oleate, methyl undecylate and isononyl oleate.  Suitable apparatus is described.
Patent GB-856832-A (GB)
Title: Improvements in fasteners and attachments
Inventor: RAPATA GEORGE MARTIN
IPC: F16B2/20
Filed: 1957-10-23
Abstract: 856,832. Brackets. ILLINOIS TOOL WORKS. Oct. 23, 1957, No. 33117/57. Class 52(5) [Also in Groups XXV and XXXVI] A one-piece fastener or attachment device of a deformable mouldable material comprises a hollow shank 24 having a head 32, a wall 34 at the free end of the shank which when unstressed is convex in one axial direction and which can be deformed so as to be convex in the other axial direction in which latter state it remains in a stressed condition and holds the edge of the shank in a suitably expanded condition providing a shoulder 36 spaced from the head. The material may be nylon or polyethylene. In the form shown the device is used as a rivet, door stop or bumper but it can be provided with a pair of arms extending from the head which terminate in outwardly flaring flanges to co-operate with inturned flanges of a moulding strip. In a modification of this construction a locking pin can extend from the centre of the wall 34 to engage the moulding strip to lock the wall in its shoulder forming position. In a further modification the head can be formed with a resilient arm for use as a cable or conduit clip. In another modification the wall can have a centrally positioned aperture through which a cable can be passed and when the wall is moved to its shoulder forming position the whole grips the cable to form a dust and moisture tight seal. The edges of the hole in the wall can be radially corrugated. The edge of the shank may be provided with circumferentially spaced notches so that the formation of the shoulder is facilitated; alternatively a plurality of radially extending ribs can be provided. The centre of the wall can also be provided with a reinforcing dimple where it is not apertured. The wall end of the shank can be formed slightly larger than the rest of the shank so that when the device is inserted into an aperture it is retained by the enlargement prior to the formation of the shoulder by moving the wall through the dead centre. Instead of the wall being formed so that it is initially concave when viewed from the outside of the shank it can be formed so that it is initially convex and it is then pressed through a dead centre so that it becomes concave viewed from the outside in the process of forming the shoulder.
Patent GB-396984-A (GB)
Title: Arrangement for supporting the connecting wires of electric irons, cooking apparatusand the like
IPC: H02G11/00
Filed: 1932-11-23
Abstract: 396,984. Automatically taking-up conductors. WALDAU, E. A., 4, Bergslagsgatan, Hedemora, Sweden. Nov. 23, 1932, No. 33129. Convention date, Nov. 7. [Class 36.] Flexible leads for supplying electricity to electric irons, cooking-apparatus, &c. are supported from the ceiling by a coiled spring 5, a cord 9 carried by the spring being attached to the flex at various points 16 and to the iron at 14. The flex is fastened to the cord so as to leave free portions as at 17, 19. The spring may be hung by a looped wire 3 extended through the coil and terminating in a ring 6 threaded by a connecting cord 7 and serving also to facilitate manipulation of the suspension.
Patent GB-352356-A (GB)
Title: Fringe making machine
IPC: D04D5/00
Filed: 1930-11-04
Abstract: 352,356. Finishing fabrics. Mc- DOUGALL, G. F., 90, 1st Street, Portland, Oregon, U.S.A. Nov. 4, 1930, No. 33149. Convention date, Nov. 4, 1929. [Class 42 (i).] Fringing.-Each part 1 of a fabric which is to form a fringe is divided into bundles 1a by the teeth of a comb 6 which is lowered to force the bundles into the twisters 11 at the bottoms of the grooves in a lower comb 10, each bundle being pierced by a pin 11c in the twister 11, all of which are intergeared and simultaneously rotated by pinions 15 and a lever 22 to twist each bundle in a groove partly in an upper and partly in a lower jaw 12, 12a. A needle 26 is then pushed through another groove partly in each jaw and through each of the twisted bundles and after threading pulls a thread 28 through each of the bundles. After being shrunk to fix the twists, the fabric is cut up into separate rugs &c. and the thread 28 removed.
Patent GB-393609-A (GB)
Title: Improvements in baths
IPC: A47K3/02
Filed: 1931-11-30
Abstract: 393,609. Baths. AKT.-GES. DER HOLLER'SCHEN, CARLSHœTTE BEI RENDSBURG, Carlsh³tte, near Rendsburg, Germany. Nov. 30, 1931, No. 33169. Convention date, Nov. 28, 1930. Addition to 342,692. [Class 26.] The bath described in the parent Specification is provided with a skirt c which may be cast in one with the bath or may be a separate element, the skirt extending round all sides of the bath or only around certain sides.
Patent GB-757868-A (GB)
Title: Improvements relating to fabricating the border strips of conveyor belts
IPC: B29C53/22
Filed: 1954-11-17
Abstract: 757,868. Conveyer belts. PIEMONT, G. Nov. 17, 1954 [Nov. 20, 1953], No. 33294/54. Class 78 (1). [Also in Group V] Corrugated flanges to form the sides of troughshaped rubber conveyer belts are vulcanized with the corrugated flanges held in the same curved position as they will occupy in passing round the conveyer rollers. Thus, the sides of the trough of the conveyer belt are not under tension when passing round the rollers and are under compression when moving along a straight path. The vulcanized flanges may be vulcanized, cemented or riveted to the conveyer belt or a conveyer belt may be moulded with integral raised corrugated edges, successive portions of the belt being vulcanized while held in a curved position. As shown in Fig. 1, an angle strip 1 is extruded and has corrugations 2 formed in one flange by pins 3. The corrugated strip is cut into sections which are bent circularly about their smooth flanges and vulcanized in this position by a circular former. The strip may then be vulcanized on or cemented or riveted to the conveyer belt 4, as shown in Fig. 3. In making edge strips of considerable length a cylinder 7, Fig. 5, having a helical track 9 thereon to receive the strip, is used as vulcanization mould.