baber/WOPTO huggingface dataset:
Patent GB-825476-A (GB)
Title: Abnormal addition of hydrogen bromide to vinylaromatic compounds
IPC: C07C17/08
Filed: 1958-06-03
Abstract: The reaction of gaseous hydrogen bromide with a mono- or a divinylaryl compound, such as styrene or divinylbenzene, to form 2-bromoethyl substitution products, is carried out in the presence of ultra-violet radiation from which wavelengths of less than 2900 have been filtered out, whereby the polymerization of the vinyl compound and the formation of an opaque film on the radiation-transmitting window are obviated.  The transmitted radiation should have wavelengths of 2900   to 7000  , preferably 2900   to 3700  .  In addition to styrene and divinylbenzene, the following compounds may be hydrobrominated by the method:-vinyltoluene, dimethylstyrenes, vinylmesitylene, chlorostyrene, dichlorostyrenes, chloromethylstyrene, methoxystyrene, hydroxystyrene, chlorodivinylbenzene, and divinylnaphthalene.  The vinyl compound is preferably dissolved in an inert solvent such as pentane, hexane, heptane, benzene, toluene, chlorobenzene, tetrachloroethylene, carbon tetrachloride or 1,1,1-trichloroethane. Certain types of glass or an aqueous solution of copper sulphate may be used as radiation-filters.  A circulating stream of copper sulphate solution may be used both as a filter and as a heat-transfer medium to maintain the reaction-temperature within the desired range, viz. 0-50 DEG  C.  When the reaction is complete, the reaction-mixture is neutralized with anhydrous sodium carbonate, water-washed, dried and distilled, preferably in the presence of iron, or from an iron pot, to decompose any small amounts of the 1-bromoethyl substitution product which may have been formed. Examples 1, 2, 3 and 5 describe the production of 2-bromoethylbenzene by hydrobromination of styrene.  Example 4 describes the production of methyl-(2-bromoethyl)-benzene by hydrobromination of vinyltoluene. This example also refers to the hydro-bromination of chloromethylstyrene, and of an isomeric mixture of dichlorostyrenes. Bis - (2 - bromoethyl)benzene is produced by hydrobromination of divinylbenzene.  Specification 554,499, [Group IV], is referred to.
Patent GB-481075-A (GB)
Title: Improvements in or relating to electric lamp sockets for supporting a bulb within a vehicle lamp
IPC: H01R33/975
Filed: 1937-06-25
Abstract: 481,075. Two-part couplings. LEO, P. June 25, 1937, No. 17754. [Class 38 (i)] [Also in Group XI] An electric-lamp holder comprises a rubber socket 3 containing a metallic sleeve 8 provided with bayonet slots 15 to receive the lamp pins 14 and an upstruck terminal portion 11 projecting through a slot 12 for attachment to a conductor 13. The other conductor 20 is connected to a terminal 19 having a concave upper end for engaging the lamp terminal 17. The flared upper end of the sleeve 8 engages in a correspondingly flared shoulder portion 10 in the socket.
Patent GB-738281-A (GB)
Title: Improvements in and relating to watches
IPC: G04B37/10
Filed: 1952-07-15
Abstract: 738,281. Watches. SOGUEL, R. July 15, 1952 [Feb. 29, 1952], No. 17777/52. Class 139. A winding crown for a waterproof watch is mounted on a tubular extension of the case and has a cavity containing a sealing ring adapted to encompass said tubular extension with a snug fit. The crown 10, Fig. 1, has a cavity 11 and an extension 12 screwed on to the winding stem 13. A sealing ring 31 retained in the cavity 11 by a fixing ring 32 surrounds the pendant tube 24. A spring member 18 located between two washers 38, 39 forces the ring 31 downwardly so that the spherical surface 34 of the ring 31 engages the spherical surface 36 of a tightening ring 35 located in a recess 37 in the fixing ring 32. The spherical surfaces 34, 36 ensure a tight closure even if the axes of the crown and pendant do not exactly coincide. In another embodiment, Fig. 2, not shown, the spherical surface of the sealing ring directly engages a corresponding surface on the fixing ring, the tightening ring and the washer 39 being omitted. In another example, Fig. 3, the sealing ring 42 has two spherical surfaces 43, 44 which engage corresponding surfaces on the fixing ring 40 and closing ring 46 respectively.' A spring member 18 exerts axial pressure on the rings 46, 42. In a modification, Fig. 4 not shown, the spherical surfaces of the sealing ring are on the same sphere. Ellipsoidal surfaces may be used instead of spherical surfaces.
Patent GB-1017930-A (GB)
Title: Improvements relating to resilient window-glazing strips
Inventor: STARK KARL
IPC: E06B3/62
Filed: 1964-04-29
Abstract: 1,017,930. Glazing mounting strips. DAIMLER-BENZ A.G. April 29, 1964, No. 17837/64. Heading E1R. In a glazing strip having a channel 9 for mounting a window pane accommodated in a channel 10 in a vehicle &c window aperture, the channel 10 is made at least in part of two layers, e.g. the body 8 and and softer layer 11 contacting the glass, of rubber or synthetic plastic material of different resiliency which are intimately united during the manufacture of the strip. The softer portions 11, e.g. of sponge rubber, are provided with sealing lips 16 projecting into the channel. The softer material may be in the base portion only of the channel 10 (Fig. 3, not shown).
Patent GB-569322-A (GB)
Title: Improvements in or relating to means for sharpening safety razor blades
IPC: B01J37/00
Filed: 1943-10-05
Abstract: 569,322. Sharpening razors. BROOKE, E. A. Oct. 28, 1943, No. 17849. [Class 60] [Also in Group XIV] A device for sharpening safety razor blades comprises a stropping and/or honing member slidably mounted on the razor frame so as to be movable parallel to and in contact with the edge or edges of the blade. As applied to a double-edged razor, the guard plate 3 has therein two slots 6, parallel to the edges of the blade 1 and extending from near one end of the guard into lugs 7 on the other end thereof, each slot having slidable therein a pin 8 with a head 9 at its outer end, and an arm 10 at its inner end, the arms having projections 11 adapted to slide along the toothed or untoothed edges 12 of the guard. One surface of each arm 10 has let thereinto a piece of leather or other sharpening-material 13, and one edge of the arm is bevelled at 14. In operation, the razor handle 5 is partially unscrewed and the pins 8, which normally lie in the lugs 7 with the arms 10 directed inwardly so as not to interfere with the normal use of the razor, are moved along the slots, the arms 10 being turned so that they enter, by their bevelled edges, between the guard and the blade 1, sharpening being performed by to-and-fro movement of the arms along the slots with the pieces 13 contacting the blade edges. The ends of the projections 11 may be curved and serrated ; the pins 8. may have extended heads to be gripped by the fingers for movement along the slots.
Patent GB-928359-A (GB)
Title: Conveyor
IPC: B66C7/00
Filed: 1961-05-16
Abstract: 928,359. Elevated railways; conveyers. R. G. C. JENKINS (J. N. Leach). May 16, 1961, No. 17861/61. Classes 78 (1) and 104 (2). [Also in Group XXXII] A conveyer comprises a pair of spaced rails 10, 12 each with horizontal and vertical surfaces between which runs at least one trolley 18 provided with two wheels 20, 21 secured to a transverse shaft 30 and a third wheel 22 mounted on a vertical shaft, the upper end of which can move from side to side in the trolley in a bearing frame 36 inside hollow protrusions in the plates 24, 26 so that the vertical shaft may remain parallel the vertical surface of the rail 10 or 12 on which the wheel 22 runs, when the trolley negotiates a curve in the rails 10, 12. The trolley is constructed of two plates 24, 26 held together at their upper ends by a bolt and nut 30, 35 the bolt forming the transverse shaft and the bolt and nut also serving to retain the wheels 20, 21 in place with the aid of spacers 32, 34. The plates 24, 26 are held together at their lower ends by another bolt and nut 46 provided with washers 48, 50 which retain the lower end of the vertical shaft of the wheel 22 in slots in the plates 24, 26. The washers 48, 50 do not allow the vertical shaft to move transversely of the plates but allow it to move slightly to accommodate for the side to side movements of the upper end of this shaft in its bearing. A load may be suspended from a home 28 in the plates 24, 26. As the trolley negotiates a curve in the rails 10, 12, the outer wheel i.e. 20 rises, an upper rail 16 being provided on the outside of the curve to limit its upward movement, and the upper end of the vertical shaft of the wheel 22 moves in the bearing 36 to allow the wheel 22 to remain normal to the vertical surface on which it is running. The rails 10, 12 are held in place by longitudinally spaced brackets 14 and a number of trolleys may be linked together to form an endless series.
Patent GB-877721-A (GB)
Title: Improvements in cellulose triacetate fabrics and articles of wearing apparel made therefrom
Inventor: MANN RALPH JAMES
IPC: D06M13/188
Filed: 1957-06-05
Abstract: Fabrics containing cellulose triacetate fibres, which have been made by a method other than by the acetylation of fibres of cellulose acetate of acetyl value below 59% calculated as acetic acid, are stiffened by swelling and softening the cellulose triacetate of the fabric by treatment with acetic acid or diethylene glycol diacetate or an aqueous solution thereof to such a degree that the fabric is stiffened on washing away the organic liquid with water, and then washing the fabric with water and drying it.  The fabric may be padded with aqueous acetic acid of 63%-80% strength by weight at 20 DEG -35 DEG C., washed and dried or run through a bath of aqueous acetic acid of 60%-63% strength by weight at 20 DEG -35 DEG C., washed with water after a period of 10 seconds to 2 minutes counting from the time of first contact of fabric with aqueous acid and dried. Alternatively the fabric may be padded with aqueous diethylene glycol diacetate of 71%-80% strength by weight at 20 DEG -35 DEG C., washed and dried.  Washing may be combined with bleaching or treatment with a fluorescent brightening agent and the fabric may be dried at 115 DEG -120 DEG C.  The cellulose triacetate fibres may be made by melt, dry or wet spinning and the fabric may be woven wholly of continuous filament cellulose triacetate yarn, wholly of yarn of cellulose triacetate staple fibre, wholly of yarn spun from a mixture of cellulose triacetate staple fibre with a minor proportion of cotton or regenerated cellulose staple fibres or consist in part of yarns of cellulose triacetate continuous filaments or staple fibres and in minor part of yarns of cotton or regenerated cellulose.  The fabric may be used as an interlining to stiffen collars, cuffs and other articles of wearing apparel woven or knitted from cotton, regenerated cellulose, acetone-soluble cellulose acetate or cellulose triacetate. The Provisional Specification also refers to the swelling and softening of the fabric with other water-miscible organic liquids or mixtures thereof with water, e.g. formic acid and water miscible carboxylic esters, ethers and ether carboxylic esters of polyhydric alcohols.  Specifications 500,960, 758,442 and 816,238 are referred to.
Patent GB-111855-A (GB)
Title: Improvements in or relating to Press Plates for Oil Expressing Presses and analogous Apparatus.
Inventor: FRENCH ALFRED WILLARD
IPC: B30B9/26
Filed: 1917-12-03
Abstract: 111,855. French, A. W. Dec. 2, 1916, [Convention date]. Fatty oils, extracting by pressure. A press plate particularly acapted for use in a cage press consists of two plates A, B of which one or both have hollow perforated ribs D which form drainage channels leading to the edges of the plate. The ribs on one plate are arranged at an angle with those on the other plate. The plates are made of sheet metal, and the ribs are formed by bending. An edge channel F extending along the edges of the plate is formed by bending the edges of the metal sheets outwardly. The plates are riveted together at the corners.
Patent GB-773799-A (GB)
Title: Improvements in or relating to plating jigs
Inventor: PRESTON JULIUS JOHN
IPC: C25D17/08
Filed: 1954-06-18
Abstract: 773,799. Electroplating. PRESTON & CO., Ltd., J. June 15, 1955 [June 18, 1954], No. 17957/54. Class 41. An electroplating jig comprises a. rod or frame 10 of electrically conducting material having arms 11 ... 14 extending therefrom to support articles, each arm having a resilient coil or loop 15, e.g. integral with the arm, having an internal diameter or arc of curvature such that it will tightly engage the rod 10. The rod 10 and arms 11 ... 14 are of steel, aluminium, copper, brass, phosphor-bronze or an aluminium alloy and may have a protective coating, e.g. of polythene, except where metal contact is necessary for electrical conduction. The coil or loop 15 may be intermediate the ends of the arm, and may be a separate member attached to the arm.
Patent GB-1223560-A (GB)
Title: Improvements relating to time delay electrical circuits
IPC: G11C27/02
Filed: 1967-04-19
Abstract: 1,223,560. Active impedance networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 3 April, 1968 [19 April, 1967], No. 17987/67. Heading H3U. In an N-path network used as a delay circuit, the N-paths include series capacitors and are connected in series with a first amplifier A 1 . It is shown that the output from this amplifier V 2  is given by and so by adding in V 1  at the input to the second amplifier A 2 , the output V 0  is given by In an alternative arrangement Fig. 3 (not shown) the input voltage V 1  is subtracted at the input to the first amplifier. A gain of 2 is then required at the second amplifier to give the required value of V 0 . The switching for the N-paths may be effected by field effect transistors, Fig. 4 (not shown), triggered from a chain of bi-stable circuits.
Patent GB-779218-A (GB)
Title: An improved method of producing metallurgical coke
IPC: C10B57/04
Filed: 1955-06-21
Abstract: 779,218. Coking. CHARBONNAGES DE FRANCE..June 21,1955 [Sept. 21, 1954], No. 17989/55. Class 55 (2). A metallurgical coke is produced from pulverized substantially non-fusible coal having a high content of volatile materials mixed in preponderating quantity with a pulverized fusible coal of substantially smaller grain size. The pyrogenation temperature of the non- fusible coal is so much lower than that of the fusible coal that when the latter resolidifies following pyrogenation, the protocoke formed from the substantially non-fusible coal has completed its rapid phase of contraction.. The grain size of the non-fusible coal may be from one hundred to one thousand times by weight that of the fusible coal. In an example, the non-fusible coal'contains 40 per cent of volatile material and has a crucible swelling index of " 0," the grain size being 2-3 mm. The coals are mixed in the proportion of 60 to 40 per cent. In a further example, the fusible component is a mixture of equal parts of coking coal with 25 per cent volatiles and a swelling index of " 9 " and a fat coal A containing 35 per cent volatile material and having a swelling index of " 8." The non-fusible coal may be moistened with oil or water, and the fusible coal dried, before mixing to form the coking blend.
Patent GB-993838-A (GB)
Title: Bibs of plastics material and method of making
Inventor: HUMMEL RAYMOND JOSEPH
IPC: A41B13/10
Filed: 1964-04-30
Abstract: 993,838. Cutting-out bibs. H. & H. PLASTICS MFG. CO. April 30, 1964, No. 18044/64. Heading B4B. [Also in Division A3]  Disposable bibs, Fig. 1, are formed from a continuous length 12 of thermoplastic sheet material, Fig. 3, by turning one edge 14 under and the opposite edge 20 over by fingers 56 and 60 respectively, cutting away arcuate portions 26 with a die 64 and, with a heated blade 68, simultaneously severing adjacent bibs along lines 70 and sealing the side edges 16, 18 and 23, 24 of the hems 14<SP>1</SP> and 20<SP>1</SP> to the body of the bib. The cutout portion 26 forms a head-receiving opening and the bib is supported from the shoulders. To form ties 30, 32, a strip 80 is laid along the hem 20<SP>1</SP>, is severed and sealed by the blade 68 and is subsequently cut in two. To lengthen the ties, slits 22 may be formed by a vertically reciprocating blade 64a acting against a stop 64b.
Patent GB-950453-A (GB)
Title: Improvement in flushing systems
IPC: E03D5/08
Filed: 1959-05-28
Abstract: 950,453. Sanitary closets. J. S. BRISTOW, and GLOVER, WEBB & LIVERSIDGE Ltd. May 30, 1960 [May 28, 1959], No. 18237/59. Heading E1C. A water closet has a flap outlet valve 13 adjacent to which is mounted a metering inlet valve 21 for the flushing water which is interconnected therewith to be operated by the same movement of a food pedal 16. The metering inlet valve 21 is not higher than the flushing water inlet 25 into the pan 11. The interconnection between the valves 13, 21 is such that, under normal use, part of the flushing water is used to introduce water into the bottom of the pan 11 after the flap outlet valve 13 has reclosed, and comprises a cam 18 mounted on the outlet valve operating shaft 14, which moves an arm 23 to displace the plunger 22 of the valve 21.
Patent GB-1136647-A (GB)
Title: Improvements in lasts for the vulcanisation of rubber-soled footwear
IPC: A43D3/02
Filed: 1966-04-26
Abstract: 1,136,647. Lasts for boots. A. NOVA, O. NOVA, and R. NOVA. 26 April, 1966 [27 April, 1965], No. 18254/66. Heading B5A. [Also in Division A3] A last for a boot or shoe comprises a main member 1 attached to a bedplate 4, and a movable member 3 articulated by a pin 7 to an extension 6 of the bedplate and spaced from the main member in a moulding position. The movable member 3 comprises an upper extension 18 forming an instep and heel portion and seating on a portion (19) of the main member. A shoe is removed from the last when a handle 9 is raised, thereby raising the member 3 above the level of the sole 20, said member 3 being guided by movement of a pin 25 in an inclined slot 23 of a bracket 22 projecting from the member 3 into a recess seating the pin 25. The slot has inclined end sections linked by a more sharply inclined middle section. In the dismantled condition the spacing between members 1, 3 is substantially decreased and the extension 18 projects over the sole 20 (Fig. 3). In a modification (Fig. 5) a further form of lifting handle 9 is described.
Patent GB-980192-A (GB)
Title: Improvements in or relating to circuit arrangements for distributing electrical pulses
Inventor: GODFREY PETER
IPC: H03K5/15
Filed: 1960-05-24
Abstract: 980,192. Electronic counters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. May 24, 1961 [May 24, 1960], No. 18256/60. Heading G4A. [Also in Division H3] Each stage of a ring counter comprises a single transister such as TR1-TR4 the collector of which is coupled by a resistor/capacitor network to the base of the suceeding transistor, the arrangement being that one transistor is operative at a time under the control of two complementary pulse trains P1, P2 which are applied respectively to the odd- and even-numbered stages. The pulse trains are ineffective until a start pulse has been applied to lead ST to make TR1 conduct. The relationship between R2 and C1 may be varied according to the frequency of the current supplied to P1 and P2. To ensure that only one stage shall be effective at any one time the emitters of all stages may be connected through a current-limiting network, Fig. 3, to a potential source. The count may be indicated by a potential taken from the collector of each stage, Fig. 1, or from the emitter connected to the base of a further transistor, Fig. 4.
Patent GB-111369-A (GB)
Title: Improvements in Metal Punching Machines.
IPC: B21D28/26
Filed: 1916-12-21
Abstract: 111,369. De Bergue & Co., and Shaw, R. Dec. 21, 1916. Copying and reproducing mechanism is described applied to punching-machines in which the work is carried below the punches by two intermittently advanced carriages capable of transverse movement and so connected that they move simultaneously. The carriages d, d<3>, to which the work is clamped, slide transversely on the carriages d<1>, d<2>, Fig. 1, and carry tracks E, Fig. 2, meshing with pinions e driven from pinions f feathered to slide on the common shaft F, turned in one direction by a weight W or by a spring, and a drum G to press the edge of the work against a guide roller H, Fig. 2, or to press a roller K, Fig. 5, on the carriage d against a guide tail M. In a modification the racks and pinions may be replaced by quick-pitch screws, and, according to the Provisional Specification the shaft F may be replaced by a chain geared to the racks or screws.
Patent GB-110987-A (GB)
Title: Improvements in and relating to Vehicular and like Lamps and in the Manufacture of the same.
Inventor: PHILLIPS JOHN
IPC: F21S13/00
Filed: 1916-12-27
Abstract: 110,987. Phillips, J. Dec. 27, 1916. Vehicular and like lanterns; lantern doors; lanterns, glazing.-The front, back, sides, and the hood or top of a vehicular or like lamp is formed of one piece of metal, such as the piece shown in Fig. 1, which is bent so that the central part a is arched to form the hood, the extensions b, c form the front and back plates, and the flanges f on these extensions are bent at right-angles thereto, so as to meet and form the lamp sides, the meeting edges of the flanges being curled or hooked together. The front and back plates are cut away at d so as to leave openings for the hinged or sliding doors, and when using detachable sliding panels the edges of the openings are folded outwardly and inwardly so as to form slides for the panels. A strengthening-wire passes along the curled side edges of the hood and along the corners of the front and back pieces. A top-piece j, Fig. 4, may be fixed across the top of the lamp, and a wind-guard l may be secured to or formed in one with it. The bottom edges of the front, back, and side pieces are preferably rolled and jointed at q to the bottom plate r formed in some cases as described in Specification 110,111 with an aperture S for the candle socket and slides for the oil container. The glass element of the end panel is secured in a depressed part of its frame by bending over the bottom and side edges of the frame, the inner edges of the frame being curled inwards so as to hold the glass firmly but yieldingly. The upper edge of the frame is bent to form a finger-piece. The Provisional Specification also states that the bottom of the lamp consists of two flanges bent at rightangles to the main body of the lamp and secured together by co-operating hinged ends. The meeting edges of the flanges f are secured together by riveting on the spring supporting-hook or clip.
Patent GB-530476-A (GB)
Title: An air filter for the induction of internal combustion and other engines
IPC: F02M35/14
Filed: 1939-06-24
Abstract: 530,476. Air-filters and silencers. TECALEMIT, Ltd. June 24, 1939, No. 18471. Convention date, June 24, 1938. [Class 8 (ii)] An air filter, for the induction of internalcombustion engines, comprises a tubular body 1 having a filtering element 4 at each end, an expansion chamber 13 into which air currents flow in opposite directions after having passed through the filters 4, and an outlet 16 leading to the carburetter. As shown, each air inlet 3 is formed by the annular space between a cap 2 and a partition 8 and each filter consists of a perforated tube 5 lined with tartalan 6 wound on wire gauze 7. The air after passing through a filter enters a conduit 12 which opens freely into the body 1 spaced from the other partition. The conduit 12 consists of a perforated tube 14 surrounded by a sleeve 15 of felt the outer surface 15a of which is rubber coated. In a modification the two oppositely directed conduits 12 are replaced by a single conduit extending from one partition 8 to the other and having a central aperture or gap opening out to the chamber. The Specification as open to inspection under Sect. 91 of the Acts comprises also a construction in which the end of the conduit 12 remote from the partition 8 is blocked to form a cushioning chamber, the outlet from the conduit being spaced from this end. This subjectmatter does not appear in the Specification as accepted.