baber/WOPTO huggingface dataset:
Patent GB-654376-A (GB)
Title: Improvements in and relating to dynamoelectric machines
IPC: H02K23/08
Filed: 1947-08-27
Abstract: 654,376. Alternating current commutator machines. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 27, 1947, No. 23726. Convention date, Aug. 27, 1946. [Class 35] In a dynamo electric machine having a stationary member with a plurality of polar projections, the field exciting winding comprises sets of series connected coils each set being formed of a continuous conductor. These sets of coils are each arranged to embrace certain of the polar projections to provide series, compensating and commutating excitation. At least one polar projection in each set of coils is embracad by all the coils of the set. In the form shown a direct current series motor has an armature 1 of a conventional type with brushes 2, 3. The yoke 4 of the stationary member is provided with a plurality of projections 5, 6, 7, 8, projections 5, 6, 7 furnishing series excitation, projections 5, 7 compensating excitation and projection 8 commutating excitation. The projections are grouped into four sets according to the number of poles in the machine. There are four sets of coils, each set being formed of a single conductor (or parallel conductors) ; one coil in each set embraces a projection 8, the second coil of the same set embraces projections 5, 6, 7, 8 and the third coil of the same set embraces projections 7, 8 and the projection 5 of the adjacent group of polar projections. All coils in a set act in common with respect to the commutating polar projection 8. Fig. 2 shows the three coils of one set wound to form commutating coil 9 main field coil 10 and compensating coil 11.
Patent GB-737271-A (GB)
Title: Derivatives of isonicotinic acid hydrazide
IPC: C07D213/86
Filed: 1952-09-22
Abstract: The invention comprises isonicotinic acid p-substituted - benzylidenehydrazides wherein the substituent is hydroxy, allyloxy, phenoxy, nitro, acetamino, alkoxy or carboxyalkoxy comprising at most 4 carbon atoms, carboxyvinyl, carboxyalkylamide, b  - hydroxyethoxy, carbomethoxy, dialkylamino comprising at most 4 carbon atoms, methyl, acetoxy, ethylsulphone or formyl, the benzylidene moiety being devoid of substituents except at the para-position.  These compounds are obtained by reacting isonicotinic acid hydrazide with a p-substituted benzaldehyde, in a solvent such as an alkanol, or by melting the reactants together.  Alternatively a p-substituted benzalhydrazone is reacted with isonicotinic acid or a functional derivative such as a halide, ester, anhydride, salt, amide or other derivative reactable with the N1-amino group of the hydrazones.  In place of the benzaldehyde there may be used a benzaldehyde hydrate, bisulphite addition product, acetal, semiacetal, hydrate ester, oxime, hydrazone, azine, semicarbazone or other functional derivative.  The reaction is facilitated by addition of electrolytes to the reaction mixture.  In example (1) isonicotinic and hydrazide and p-hydroxybenzaldehyde are reacted in ethanol to give isonicotinic acid p-hydroxy-benzylidene hydrazide.  Similarly prepared from the appropriately substituted benzaldehyde and isonicotinic acid hydrazide are isonicotinic acid p - substituted benzylidenehydrazides in which the p-substitutuents are (2) p-allyloxy, (3) nitro, (4) acetamino, (5) n-propoxy, (6) methoxy, (7) ethoxy, (8) butoxy, (9) b -hydroxy-ethoxy, (10) dimethylamino, (11) diethylamino, (12) methyl, (13) acetoxy, (14) formyl and phenoxy, carbomethoxy, carboxylic acid methylamide, ethylsulphony, carbethoxyvinyl and carboxymethyl radicals.  The alkoxybenzaldehydes used as starting materials in examples 5 to 8 can be obtained by reacting substantially equimolecular proportions of the corresponding alkyl halide with 4-hydroxybenzaldehyde.  4 - b  - hydroxyethoxybenzaldehyde is obtained by reacting 4-hydroxybenzaldehyde with ethylenechlorohydrin in ethanol in the presence of sodium.
Patent GB-285050-A (GB)
Title: Improvements in the construction of brickwork walls exposed to high temperatures
IPC: F27D1/00
Filed: 1927-09-10
Abstract: 285,050. Etablissements F. Labesse. Feb. 10, 1927, [Convention date]. Blocks for furnace walls.-In a furnace wall the bricks 15, 16 of the refractory screen 10 are slidable on the flanges 8 of hollow members 7 and may be connected together by dovetail members 17 with allowance for expansion. Specification 280,561 is referred to.
Patent GB-534821-A (GB)
Title: Improvements in arc lamps
IPC: H05B31/00
Filed: 1939-08-18
Abstract: 534,821. Arc lamps. GELB, J. Aug. 18, 1939, No. 23857. [Class 39 (i)] [Also in Group XI] Horizontal electrodes are carried on interconnected bell crank levers moving in a vertical plane and controlled by clutch mechanism operated by an electromagnet in series with the arm, the weight of the arms being counterpoised by a spring. The arms 18, carrying the electrodes 57, are connected by a pin-and-slot joint 21 and counterpoised by a spring 87. An arm 24 on one of the arms 18 carries an arcuate bar 25 engaging a clutch plate 46 which is raised by a pivoted frame 38 actuated by the solenoid 31. When the frame 38 falls on account of the arc lengthening the plate 46 strikes against an adjustable stop and is disengaged, allowing the electrodes to approach each other until the current is sufficiently strong to cause the magnet 31 to raise the frame 38, thus reengaging the clutch. The electrodes are held in clamps shown in Fig. 4 operated by eccentrics 72 moved by handles 71. The clamps are carried on plates 59 secured to plates 67 on the arms 18 by hollow insulated bolts 62 through which pass adjusting screws 69. A reflector 53 carries collars 51, through which the electrodes pass, journalled in rings 49 supported by arms 48 from the frame of the lamp. A diffuser 89 is mounted in the reflector.
Patent GB-1429685-A (GB)
Title: Apparatus and method for removing or changing a nuclear power station reactor
IPC: G21C11/04
Filed: 1973-05-18
Abstract: 1429685 Reactors COLEBRAND Ltd 7 May 1974 [18 May 1973] 23857/73 Heading G6C A reactor building 1 is erected on a concrete base 2 acting as a basin leading to a waterway from which a reactor-bearing hull 3 is transported. That hull is lowered on to bearers, e.g. 2B by pumping dry the basin. The hull also acts as a biological shield and may have fuel element stores Figs. 2, 3 (neither shown). Lock gates are provided in the waterway.
Patent GB-501633-A (GB)
Title: Improvements in or relating to fuel-injection pumps for internal-combustion engines
IPC: F02M63/00
Filed: 1937-08-25
Abstract: 501,633. Fuel-injection &c. pumps ; filters. AMERY, G. Aug. 25, 1937, No. 23877 /38. Divided out of 501,588, [Group XXVII]. [Class 102 (i)] [Also in Group I] A pump, particularly a fuel-injection pump for internal-combustion engines, comprises in combination a plunger 45 in a barrel 48 having a delivery port and an inlet passage spanned by a filter. 62, and a ram 41 working in a space forming part of that portion of the inlet passage which is on the delivery side of the filter so as to displace liquid therein backwardly through the filter at the same time that the plunger is delivering liquid from the barrel. The ram is of larger diameter than, and operatively connected to, the plunger so as to actuate it, and the ram is operated by a cam 36 and returned by a spring 47. A single plunger may be employed in conjunction with an accumulator, or there may be two or more plungers with separate inlets and filters but delivering through their ports into a common delivery chamber 54. The inlet passage is constituted by the filter chamber 61, port 59, and inlet chamber 50, the latter being connected by inlet port 57 to the barrel 48. The filter 62 is inclined, with the inlet above and the outlet 59 below it, a drain plug 65 is provided for the removal of dirt, and the filter may be removed endwise from the chamber after taking off an end plate. The delivery pressure may be determined by a relief valve 24 controlled by governor weights 23, such as those described in Specification 468,372, one ram-operating cam being on the governor shaft and a second one on a lay shaft geared to the governor shaft by teeth 35 and rotated at the same speed. The lay shaft also serves to operate a cam 72 of the kind described in Specification 468,360, [Group XXVII], and forming part of a distributer 15 as described in Specification 501,588, [Group XXVII]. According to the Provisional Specification a single cam operates a plurality of plungers with cam rollers.
Patent GB-1460416-A (GB)
Title: Disposable gas cigarette lighter
IPC: F23Q2/34
Filed: 1975-06-03
Abstract: 1460416 Gas lighter ETABS GENOUD & CIE 3 June 1975 [29 July 1974] 23881/75 Heading F4F A disposable gas cigarette lighter comprises a plastics gas reservoir 2 having a metal cup 6, a burner 3, a knurled wheel 4 and a valveactuating lever 5, and a cut-out (7), Fig. 4 (not shown), in the cup, which is closed at least partly by a tear-off tab 8 covering at least the burner. The tab may have a curved extension (8a), Fig. 2 (not shown), covering wheel 4, and a projection (8b), Fig. 3 (not shown), may cover the lever.
Patent GB-1192434-A (GB)
Title: Fluid Valve Structure
Inventor: ELCHYSHYN STEPHEN
IPC: F16K25/00
Filed: 1967-05-23
Abstract: 1,192,434. Valves. S. ELCHYSHYN. 23 May, 1967, No. 23908/67. Heading F2V. A valve has a plug 18 movable into and out of engagement with a seat 12, the plug being formed by a resilient-walled stepped metal cylinder which acts to vary the throttling effect as the cylinder is moved further into the seat which is formed by an inwardly projecting land 56 on a flexible metal cylinder. When the large diameter portion of the plug is in engagement with the land a spider 60 forces a flange 50 on the cylinder on to a spacer 46 to flex the land 56 inwards to seal with the plug.
Patent GB-150907-A (GB)
Title: Improvements relating to wireless telephone apparatus
IPC: H04B1/08
Filed: 1919-09-30
Abstract: 150,907. Douvry, P. L. Sept. 30, 1919. Portable wireless apparatus; wave detectors.- A portable receiving apparatus comprises a crystal detector 2 mounted on a flat base 1, which also carries the tuning-inductance (in a peripheral groove), the condenser (in a central recess), switches 28, 29 for tuning, and terminals for connecting to the aerial, ground, and receiver. The connexions can be inspected by removing a back cover. The two elements of the detector, shown in Figs. 4 and 5, are mounted on adjustable brackets 14, 25 and are protected by a glass or mica tube 27. The crystal-holder 16, 17 is frictionally held by a spring 23, so that it can be rotated by a knob 20. The resilient contact 9 is mounted on a rod 6 and is pressed against the crystal by a spring 11, the pressure being adjusted by a nut 4, which screws on the tube 3 to lift the head 7 of the rod 6. To find a sensitive point, the contact 9 is lifted by the head 7 and the crystalholder is rotated, and also, by loosening the nut 5, the whole element shown in Fig. 4 can be moved bodily along a slot in the bracket 14, to bring the contact 9 to a different distance from the centre of the crystal. The connexions are as shown in Fig. 6. 35 being the receiver. The switches 28, 29 effect fine and coarse adjustments of the tuning inductance.
Patent GB-501750-A (GB)
Title: Improvements in tyre valves
IPC: B60C29/00
Filed: 1937-09-02
Abstract: 501,750. Tyre valves ; moulding. JENKINS BROS. Sept. 2, 1937, No. 24051. Convention date, Sept. 30, 1936. [Class 135] [Also in Group V] A tyre valve comprises a rubber stem 10 with a metal insert 13 at the tip which is provided with a flange 15 forming a backing for a seat 16 for an inwardly opening valve member 18. The valve is held closed by a spring 22 and is provided with a head 20 which normally fills the slightly restricted mouth of the insert 13 to prevent the ingress of dust and moisture, whilst being freely slidable therein to allow the valve 18 to assume its fully seated position. In a modification, the spring is held against the underside of the valve by an abutment inserted in the bore of the stem. Specification 440,840 is referred to. The Specification as open to inspection under Sect. 91 comprises also a three-part die 42, 43, 44, Fig. 4 (Cancelled), for moulding the rubber stems with the inserts 13 in position. The part 42 carries a pin 46 for the bore of the stem which is guided by a tubular fitting 45<1> which also serves to position the insert 13. This subject-matter does not appear in the Specification as accepted.
Patent GB-296560-A (GB)
Title: Improvements in shades and/or reflectors for electric lamps
IPC: F21V7/04
Filed: 1927-09-13
Abstract: 296,560. Staines, F. Sept. 13, 1927. Shades and reflectors; shade and reflector holders. - In a lamp in which a shade or reflector is attached to a back plate so as to more or less conceal an electric lamp bulb and to reflect the light downwardly, a shade or reflector b is pivotally mounted at c on a back plate a so that it may be moved to reflect the light upwardly or both upwardly and downwardly, the pivots preferably being formed so as to ensure sufficient friction to retain the shade in any adjusted position. A bulb d or bulbs may be mounted on the inner surface of the shade, as shown, or they may be fixed to the back plate, which latter may be permanently or detachably secured to a wall or other surface, or mounted on a stand, bracket, or other support. The shade may be made in one piece, or in two or more pieces of the same dimensions, or arranged to telescope or move over one another.
Patent GB-834758-A (GB)
Title: Improvements in or relating to treadles for sewing machines
IPC: D05B75/06
Filed: 1958-07-28
Abstract: 834,758. Treadle mechanism. PFAFF A. G., G. M. July 28, 1958 [July 30, 1957], No. 24155/58. Class 136(2) In a sewing machine treadle in which tread boards 25, 26 are adapted to operate independently for actuating control devices of the machine, the boards 25, 26 (Fig. 1) are provided with locking means actuated by a foot operating lever 13 to lock the boards 25, 26 separately or together independently of the actuation of the control devices. A tube 3 is journalled in sleeves 2 on the sewing machine frame 1. Two straps 4, 5 are mounted on the tube 3 and support switch means 6 for controlling the speed of the sewing machine. A plunger 8 having arms 9, 10 is provided on the switch means. A pair of supporting levers 11, 12 and a foot operating lever 13 are rigidly connected to a shaft 7 journalled in the straps 4, 5. The lever 13 is provided with a notch 14 which co-operates with three projections 15 in a stop spring 17 secured to the strap 5. The tread boards 25, 26 are mounted on bars 21, 22 and 23, 24 respectively which are pivoted on a shaft 20 supported by clamps 18, 19 on the tube 3. The tread boards 25, 26 rest on the arms 9, 10 of the plunger 8. Pins 27, 28 project from the bars 22, 23 respectively. When the tread boards are in their uppermost positions each of the pins 27, 28 is in the range of rocking movement of one of the slots 29, 30 of the levers 11, 12 respectively. When the lever 13 is in the foremost locking position the pin 27 is engaged by the slot 29 and the tread board 25 is locked. In the rearward locking position the pin 28 is engaged in the slot 30 to lock the tread board 26. In the central locking position both pins 27, 28 are engaged in the slots thus locking both the tread boards. In a modification (Fig. 2, not shown.) two foot operated levers are provided, one associated with each of the tread boards. In a further modification (Figs. 6 and 7) a double armed supporting lever 67 is disposed below the supporting rails 59, 60 of the tread boards, the rails having extensions 69, 70 respectively. A foot operating lever 66 may displace the lever 67 into any of five locked positions. In the position indicated at A only the tread board supported by the rail 60 is locked whereas in the position B both the tread boards are locked. When the lever 67 is in the central position both tread boards are free.
Patent GB-819193-A (GB)
Title: Improvements relating to file cover support devices as used in filing systems
IPC: B42F15/02
Filed: 1957-07-30
Abstract: 819,193. Filing papers; indexing. JONES, W. N. July 30, 1957 [Aug. 6, 1956], No. 24184/57. Classes 16 and 146(1) A suspension bar 1 for a filing system of folders 12 comprises four spaced parallel walls 5, 6, 7, 8 joined together to form two outer grooves 2 downwardly opening and a shorter inner groove 3 upwardly opening, each outer wall 5, 8 having an inwardly directed flange 9 such that each groove 2 is adapted to receive the folded over upper edge of a folder 12, the flap 11 of the folder resting an the flange 9. The bar is preferably made from a sheet metal strip 4 bent longitudinally to the required M shape, and the bars are provided with notches 14 for sliding on the supporting members 13 of a filing cabinet drawer. Each bar 1 has one folded edge from two adjacent folders 12 to form a concertina arrangement. The channel 3 is used to hold an index holder 15 comprising an angled part 16 to receive a card 19 and a mounting part 17 to be wedged between the walls 6, 7, the card 19 being held between the upper edge 20 of part 17 and a turned over edge 18, preferably with a strip 21 of glass or clear plastic of segmental cross-section to act as a magnifying strip. Projections on the groove 3, or other means, may position the holder 15.
Patent GB-1168042-A (GB)
Title: Device for Reducing Yarn Wastage in a Textile Machine
Inventor: ZEGNA GIORGIO
IPC: D02H11/00
Filed: 1968-05-21
Abstract: 1,168,042. Detecting yarn breakage and reducing subsequent yarn wastage. G. ZEGNA and G. ZEGNA. 21 May, 1968 [10 Nov., 1967], No. 24207/68. Heading DID. In a spinning machine of the kind having a yarn drawing region, a yarn break detector is arranged in or following the drawing region 3 and on breakage occuring it initiates operation of an electrically controlled means which causes breakage of the yarn ahead of the drawing region to prevent unnecessary unwinding from the supply spool. A pivoted feeler 7 rotates under its own weight when a break occurs to complete an electrical circuit which stops the carriage 14 moving the feeler and a suction device 11 along the machine. The yarn is broken before the drawing region either by cutting means, or by displacing the leading rollers in the drawing region or by stopping rotation of the supply spool 1. The latter is effected by an electromagnetic device 18 which moves a lever 20 when actuated on rotational movement of feeler 7. The lever 20 moves a latch device to release a lock member for movement into locking engagement with the spool.
Patent GB-1488338-A (GB)
Title: Method of combating insect pests in plant cultures employing dimethyltin-diacetate
IPC: A01N55/04
Filed: 1976-06-11
Abstract: 1488338 Combating insects using dimethyl tin diacetate CIBA-GEIGY AG 11 June 1976 [12 June 1975 11 May 1976] 24316/76 Heading A5E A method of combating insect pests in a plant culture, e.g. cotton or vegetable crop, comprises applying dimethyl tin diacetate optionally together with another pesticide.
Patent GB-354554-A (GB)
Title: Improvements in valve stem locking means for inner tube molds and the like
IPC: B29D23/24
Filed: 1930-08-14
Abstract: 354,554. Vulcanizing-moulds. FAIRCHILD, W. L., 250, West 57th Street, New York, U.S.A. Aug. 14, 1930, No. 24390. [Class 70.] In annular moulds for vulcanizing inner tubes, particularly those of the type described in Specification 277,410, [Class 70, Indiarubber &c.], in which the cross-sectional area of one of the mould sections exceeds that of the other, means are provided for locking the valve stem during vulcanization. In one of the mould sections 1, Fig. 4, is cut a recess 16 with inclined walls 17, 18, and a cavity 20 to accommodate the valve stem 4, Fig. 2. A block 23 with a corresponding cavity 26 fits this recess and is carried by a rod 31 sliding in a guideplate 33 on the mould. The lower end of the rod carries a fork 41 engaging a crank 38 by means of which the block 23 is moved in and out of position, the throw of the crank being such that the block is full open and closed at the two dead centres. In a modification, the block 23 is carried by the other mould section, and the valve stem is locked on closing the mould.
Patent GB-502027-A (GB)
Title: Improvements in or relating to headlamps for vehicles
IPC: F21V19/00
Filed: 1937-09-09
Abstract: 502,027. Two-part couplings. BOSCH. AKT.-GES., R. Sept. 9, 1937, No. 24550. Convention date, Sept. 11, 1936. [Class 38 (i)] [Also in Group XI] In a motor-vehicle headlamp which is built into the body 3 of the vehicle and has no casing but has a cover-ring 5 carrying a reflector 7, a cap 12 internally provided with contact springs 14 for an incandescent lamp or lamps 10, 11 and carrying externally accessible connection terminals 15 for the lamp contacts, is placed over one end of the reflector and is so disposed that the cap and lamp or lamps can be withdrawn as a unit rearwardly of the reflector. The lamps 10, 11 are mounted in a socket-plate 9. The cap 12 is made of mouldable insulating material, and is held on the plate 9 by a projection or projections 13. The cap and plate are held on the reflector by a stirrup member 16, which is mounted rotatably on the cover ring 5 and rides over a ramp surface 17 into a groove on the cap.
Patent GB-169607-A (GB)
Title: An improved self-adjusting back and seat for reclining chairs and the like
IPC: A47C1/032
Filed: 1920-08-25
Abstract: 169,607. Bedwell, E. Aug. 25, 1920. Swing seats; seat adjustments.-In a self-adjusting chair of the kind having the seat and back jointed together, the back A is suspended by side links G from the main stationary frame of the chair. The links G may be straight or cranked, and may be permanently or detachably attached as by means of studs and key-hole slots, the studs H being adapted to engage any of the holes I.
Patent GB-1514223-A (GB)
Title: Process for the production of alkylene glycol alginates
IPC: C08B/
Filed: 1975-06-09
Abstract: 1514223 Alkylene glycol alginates UNIROYAL Ltd 9 June 1975 [16 July 1974] 24643/75 Heading C3U Alkylene glycol alginates are obtained directly from Phaeophyceae class seaweeds by a process which comprises treating the seaweed with an aqueous solution of hydrochloric, sulphuric, phosphoric or nitric acid, separating the acid treated seaweed from the aqueous acidicsolution, washing the separated seaweed with water to remove residual treating acid and water soluble components, reacting the resulting treated seaweed with an alkylene oxide, and recovering alkylene glycol alignate from the resulting reaction mixture. Prior to esterification with alkylene oxide the alignic acid may be partially neutralized with an alkaline substance, e.g. sodium bicarbonate optionally in the presence of a buffering agent, e.g. sodium tetraborate and may be further treated with formaldehyde prior to esterification. Seaweed species so treated include Laminaria longicruris, Ascophyllum nodosum var mackii, Laminaria digitata, and Alaria esculenta.
Patent GB-260739-A (GB)
Title: Improvements in and relating to advertising devices
IPC: A47F5/025
Filed: 1925-10-05
Abstract: 260,739. Molloy, E. Oct. 5, 1925. Articles to be displayed, rotating supports for; reel and endless web apparatus.-In a moving advertising device for use in a shop window or show case, means are provided whereby the movement of the exhibit may be controlled by the public, and also from a point inaccessible to the public. An optional form of moving device comprises a motor a which, through gearing c, d, e, rotates a magnetic cone f slidable on a shaft q. A tray n is mounted on a shaft t carrying a hollow cone u and surrounded by a fixed bobbin h connected to a battery g and a switch k accessible to the public. On making contact at k the cone f is attracted upwards and by friction drives the tray n. The motor a is furnished with a switch out of reach of the public. An electrically operated brake may bear on the tray rim when contact at k is broken. Alternatively the tray may be connected to the shaft t by a spring to avoid sudden stoppage. The tray may be replaced by an endless advertising band.