baber/WOPTO huggingface dataset:
Patent GB-687924-A (GB)
Title: Improvements relating to apparatus for controlling the quantity of electricity flowing in a circuit
Inventor: SCOLES GRAHAM JOHN
IPC: G05B11/01
Filed: 1949-02-17
Abstract: 687,924. Electric correspondence control systems. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Feb. 9, 1950 [Feb. 17, 1949; Jan. 23, 1950], Nos. 4395/49 and 1731/50. Class 40 (i) [Also in Group XXXV] In a system for controlling the average current flowing in a circuit, of the kind in which the circuit is periodically interrupted and control is effected by varying the mark/space ratio of the switching cycle, switching is effected by a relay having its contacts in the controlled circuit and its operating coil in the anode circuit of a valve, to the grid of which is applied a saw-tooth switching voltage, the point along the saw-tooth at which the relay operates being controlled by an adjustable d.c. bias applied to the grid, or other electrode, of the valve. As shown in Fig. 5, the coil 4 of a relay controlling, say, a furnace, is in the V1 anode circuit of a double triode and is periodically energized by applying to grid 15 a saw-tooth voltage (over a cathode follower 27) generated by a relaxation oscillator 22-25. The relative lengths of the on/off periods of the relay are controlled by varying the cathode bias of the double triode by applying a variable d.c. voltage (which may be representative of the furnace temperature) to the grid 16 associated with anode V2.
Patent GB-850236-A (GB)
Title: Improvements in and relating to cartons or containers formed from blanks
Inventor: LANGE FERDINAND
IPC: B65D5/24
Filed: 1957-02-08
Abstract: 850,236. Cartons. BAHLSEN, W. Feb. 8, 1957, No. 4447/57. Class 18. A carton is folded up from a blank, e.g. as in Fig. 1, having a bottom member 1, side wall members 2 ... 5 each attached to one side of the bottom member 1, two top wall members 14, 15 attached one to each of two opposite side wall members 2, 3 which together have at least the area of the bottom member 1. and a marginal strip portion 16, 17, 18 surrounding the side wall members ; in the erected carton, the marginal strip portion forms a set of front closing strips, each of which sets are sealed together along a closing zone so that the closing zones of the strip sets cross one another. Stages of erection are shown in Figs. 3, 4 and 6, the walls 2 ... 5 being first bent upwardly with the corner portions 6 ... 13 folded in pairs on to the side walls 4, 5 and bent outwardly together with the side strips 17, 18, the front strips 15, 16 doubled over and bent inwardly as shown in Fig. 3 to lie horizontally to the lid 14 bent downwardly and sealed around its edges to the strips 16, 17, 18. The side strips after sealing may be bent downwardly on to the sides 4, 5 or on to the lid. The box is opened at one end or by tearing away the lid 14, rip threads being provided. In a modification, Fig. 14c, suitable for a cigarette carton the strip 17 is extended to form a flap engaging over and sealed to the wall member 14 leaving a pocket into which an extension 43 of the strip 18 can be passed. A lifting strip 44 for the cigarettes may be stuck to the box. The strip 16 may have an extension flap folding over the part 14 or around the whole box. Apertures may be provided in the walls forming windows covered with transparent foil which may be torn away with the opening flap. A tool for cutting the foil may be provided in a tuck-in pocket of the box. The pocket formed between the strips 15, 16 may be used to hang the box from a bracket with metal tongues fitting in the pocket. Fig. 47 shows a modified blank, the crossing sealing strips being hatched ; in this form side walls 2, 3 are bent up and the part 14 is bent over and secured to the strip 16 after this strip has been folded to overlie the strip 15, and the ends folded so that the closing strips are formed in the middle of the end walls. The Specification describes a number of further modifications.
Patent GB-851662-A (GB)
Title: Substituted benzodioxanes and their preparation
IPC: C07D319/20
Filed: 1959-02-10
Abstract: The invention comprises compounds of the general formula : <FORM:0851662/IV(b)/1> wherein R is an aliphatic hydrocarbon group having from 1 to 3 carbon atoms, and R1 is an alkyl, alkenyl, hydroxyalkyl or alkoxyalkyl radical having from 2 to 6 carbon atoms ; and acid-addition salts thereof.  The compounds are prepared by reacting the corresponding 2-chloromethyl-compounds with NH2R1 and, if desired, interchanging the R radical by treatment with HBr followed by re-alkylation ; and, if desired, converting the products into their acid-addition salts.  The products are hypotensive and tranquillizing agents.  2-Carbethoxy-8-methoxy-benzodioxane and the corresponding 5-methoxy-isomer are prepared by reacting 3-methoxy-catechol with ethyl a ,b -dibromo-propionate and are separated by using the differing solubilities of the corresponding 2-carboxamido-compounds in ethanol. 2-Hydroxymethyl-8-methoxy-benzodioxane is prepared by reducing the corresponding 2-carbethoxy-compound with lithium aluminium hydride. 2-Chloromethyl-8-methoxy-benzodioxane is prepared by treating the corresponding 2-hydroxymethyl-compound with thionyl chloride. 2-Chloromethyl-5-chloro-8-alkoxy-benzodioxanes and the corresponding 7-chloroisomers are prepared by treating 2-chloromethyl-8-alkoxy-benzodioxanes with sulphuryl chloride. 2-n-Butylaminomethyl-5-chloro-8-hydroxy-benzodioxane is prepared by treating the corresponding 8-methoxy-compound with hydrobromic acid. N-Acetal 2-n-butylaminomethyl-5-chloro-8-hydroxy-benzodioxane is prepared by acetylation of the appropriate amino compound.
Patent GB-333508-A (GB)
Title: Fish filleting machine
IPC: A22C25/16
Filed: 1929-02-12
Abstract: 333,508. Fairweather, H. G. C., (Maritime Fish Corporation, Ltd.). Feb. 12, 1929. Dressing fish.-A machine, for cutting fish into fillets and removing the backbones consists of a fish-carrying member 15 slidable backwards and forwards on a table, and knives or saws 40, 41 disposed one, on each side of the backbone, and one in advance of the other. The member 15 comprises a pair of holders shaped to conform with the shape of the fish, the holders being spaced apart but connected together in a manner which allows the passage of the knives 40, 41. The knives are adjustably carried in frames 71 which are themselves adjustable for inclination by the quadrants 77, which with the brackets 76 connect the knifecarrying frames to slides 60, 61 which are connected by links to rocking arms whereby the knives 40, 41 are vertically reciprocated. The fish-carrier is provided with a pair of racks 23 each of which are engaged by a pinion. The pair of pinions are on the same shaft and, at the opposing faces, are formed with clutch dogs which are engageable by an interposed clutch member which is slidably keyed on the shaft and i., thus engageable with one pinion which produces a forward motion of the fish and then with the other pinion which produces the return motion. The actuation of the sliding clutch is effected by stops 82, 83, on the sliding fish-carrier. Positive engagement of the clutch with one or other of the pinions is assured by the weighted arm 91 which falls first on one side of the vertical and then on the other, and is connected by linkage to the clutch member. The fillets are engaged and held by one or more prongs 98 before the fish-carrier starts its return stroke.
Patent GB-765256-A (GB)
Title: Double-pole electromagnetic switching device
IPC: H01H51/06
Filed: 1955-02-16
Abstract: 765,256. Electromagnetic relays. FLIGUE, W. DE. Feb. 16, 1955 [Feb. 17, 1954], No. 4696/55. Class 38(5) A relay armature 5 pivots about a knife edge la at the end of one limb 1b of a U- shaped magnet yoke 1, when a coil 3 surrounding a centrally-disposed core 2 is energized, a permanent magnet 6 (or spring) mounted on the yoke 1 returning the armature on de-energization of the coil. The armature carries on each side depending insulating arms 7b situated mid-way between the yoke limbs, each limb carrying a pair of contact blades 20 co-operating with a pair of adjustable screw-threaded contact studs 22. To ensure simultaneous making of the contacts at both sides of the armature, the armature additionally rotates about a vertical axis formed by a rod 11 fixed to the limb lb of the yoke, a ball 13 on the rod co-operating with an armature recess 12; thus, should one pair of contacts engage first, the armature will pivot about the rod 11 and the other pair will immediately close. In a modification (Fig. 3, not shown) the ball 13 is replaced by a ball race. Connection to each pair of blades 20 is made by a flexible connector 30 fixed to the arms 7b, the connector limb 30a being held between the cranked ends 20a of the blades 20, and the limb 30b being connected to a terminal 27. A modified connector (Fig. 8, not shown), includes a double spiral to minimize the restraining action on the armature. A further permanent magnet 28 may be mounted on the yoke 1 to latch the armature in the position to which it is moved by the coil 3, manual or other means being required to reset the armature. Specification 359,420 is referred to.
Patent GB-418167-A (GB)
Title: Needle-vibrating mechanism for sewing machines
IPC: D05B3/02
Filed: 1934-02-13
Abstract: 418,167. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co.; Elizabeth, New Jersey, U.S.A.) Feb. 13, 1934, No. 4708. [Class 112.] A sewing - machine has ready means for adjustment for producing straight or zig-zag stitches, by varying the needle vibration from zero to maximum. The needle bar 12 is journalled for reciprocatory movement in a vibratory gate 14 hung on a pin 15. The gate has an arm 16 with a boss embraced by a forked arm 18 of a rocking lever 18, 20, rocked by a pitman 22. This pitman is operated by a pin 23 of a crank member 24 on a crank shaft 27. The arrangement is such that the crank pin 23 is in axial alignment with the crank shaft 27 at one of the limits of angular movement of the adjusting spindle 44, determined by engagement of the stopping pin 49 with one of the shoulders 40, 41. In this position of the crank pin, the pitman 23 remains stationary during operation of the machine so that the needle bar is not vibrated. By partly rotating the spindle 44, e.g. till the stop pin 49 engages the other of the stop shoulders 40, 41, the turning of the eccentric head 45 swings the crank member 24 about the pivot 28, shifting the crank pin and causing reciprocation of the pitman 22 to vibrate the needle bar gate when the machine is operated, to produce zig-zag stitches.
Patent GB-1416870-A (GB)
Title: Injection moulds
IPC: B29C45/73
Filed: 1972-02-02
Abstract: 1416870 Injection moulds BRITISH INDUSTRIAL PLASTICS Ltd 2 Feb 1973 [2 Feb 1972] 4778/72 Heading B5A An injection mould comprises two parts A, B, each part comprising a central portion 1, 2 and an outer portion 3, 4, the outer portions 3, 4 having means 18, 19 for heating them to the curing temperature of a thermosetting plastics material, and the central portions 1, 2 being provided with means 56, 22, 23, 25, 26 adapted to provide thermostatically controlled liquid circulation to maintain the central portions at a temperature lower than the curing temperature. A sprue 7 and runner 8 are provided in the central portion of the part A. At least one mould cavity 20, 21 is defined in the outer portion of the other part B, and the cavity and the runner each open on to the parting plane of the mould parts when the mould is open. The central portions 1, 2 are insulated from the outer portions by air gaps 27, 28. Runner channels 8 and hot runner channels 9 are of square or rectangular section to retain, the material when the mould is opened. When injection is complete, cut-off pins 10, 11 are forced forward by a plate 17 actuated by a cylinder (not shown). Ejector pins 12 ... 15 are provided for the moulded articles and the sprue.
Patent GB-304496-A (GB)
Title: Improvements in or relating to rail chairs or tie plates for tramways or railways
IPC: E01B9/54
Filed: 1928-02-16
Abstract: 304,496. Wrightson, S. S., and Matthews, C. R. Feb. 16, 1928. Chairs with fixed jaws; chair plates; sleepers, securing rails to; sleepers integral with chairs.- Chair or rail jaws or lugs are formed from angle iron, channel section in plan, with an edge of each flange resting on the base or'sleeper and secured solely by welding. The rail web X, Fig. 1 engages and is bolted to the web W of the jaw J which is welded to the base S. The jaw may have projections P engaging slots in the base and welded below the base. The jaw may contact with the rail angles, Fig. 1A, instead of the rail web. Two jaws J, J<1>, Fig. 5, may be welded tc a base S to receive a flange rail or a bull-head rail which is retained by a key K engaging the rail web. In a modification, Fig. 9, the key engages the rail flange and the web W<1> of the jaw J<1> is undercut. Keys may be used on both sides of the rail. The jaws may be spaced apart to receive two rails, Fig. 15, as in a crossing Vee, the rails being bolted to a central block V. Two sets of jaws may be bolted at each end of a. sleeper L, Fig. 19, and the jaw webs may be undercut to receive a wedge or packing G.
Patent GB-224436-A (GB)
Title: Improvements in or relating to metal sleepers for supporting railway, tramway rails and the like
IPC: E01B3/24
Filed: 1924-02-26
Abstract: 224,436. Green, L. Feb. 26, 1924. Slecpers, pot, integral with chairs; tie-bars; chairs with adjustable jaws; chairs.-In a metal pot or plate sleeper for flange rails, the rail A is supported on a single hollow pedestal having an open top and continuous vertical side and end walls and extending substantially completely across the sleeper B parallel to the rail. Each rail is secured by one or more fixed lugs C and a clamp or jaw D retained by a key E which engages a raised lug F. The sleepers are connected by a tie-bar G which rests on a projection H on the sleeper, is secured by a gib K and has a slot for the clamp D. A liner L may be used to adjust the gauge, or the width of the gib and clamp may be varied. The key E in Fig. 1 moves the clamp D vertically while the clamp D of Fig. 18 is rotated and the key E rounded to suit the changing inclination of the clamp which may have a serrated rail-face. The rail seating may have a raised, roughened, or chequered surface.
Patent GB-900830-A (GB)
Title: Improvements in devices for ensuring buoyancy of the human body
IPC: B63C9/115
Filed: 1959-02-12
Abstract: 900,830. Life-jackets. COLE, R. G. Feb. 12, 1959, No. 4897/59. Class 77. A life-jacket comprises front and rear buoyant members 2, 3, side straps 7, 8, crossedshoulder straps 11, a buoyant chin rest 23 and a buoyant crutch strip 4. The buoyant parts 2, 3, 23, 4 may be inflatable or filled with kapok or the like and if inflatable, the members 2, 3 may have concertina-like end and upper walls to obviate billowing of the members away from the wearer's body upon inflation. A lifeline 12 may be releasably attached to the jacket by slidable locking pins 14 and 19 at the crossover of the straps 11 and the upper edge of the rear member 3, respectively.
Patent GB-549359-A (GB)
Title: An improved scaffold clamp
IPC: E04G7/18
Filed: 1941-04-15
Abstract: 549,359. Scaffold clamps. MANN, W. G., and STEEL SCAFFOLDING CO., Ltd. April 15, 1941, No. 4907. [Class 20 (ii)] A scaffold clamp comprises a U-shaped main body member 1 adapted to embrace a scaffold tube 3, upstanding projections 4, 5 at opposite sides and ends of the main member, a hinged clamping cap 2 disposed at an angle of 45 degrees with the axis of the main member, a pivoted clamping pad 16 carried by the inside of the clamping cap, and a two part pad with rotary adjustment between the parts 10, 11 thereof, disposed between the scaffold tubes 3, 3a. The clamping is effected by a bolt 14 hinged to the projection 5, entering a bifurcation in the end of the clamping cap which is hinged to the other projection 4 of the body. The central pad is linked to the side of the body member so that it can be swung aside to allow of the insertion of the scaffold pole 3 which may be retained by a screw bolt 6. The edges 17 of the pad attached to the clamping cap are shaped to bear against the side 18 of the recess 15 in the cap when the pad is rotated to its extreme limits to clamp tubes in parallel or at right angles, while for the medial position of the pad the tubes lie at 45 degrees to each other. The bifurcated end of the cap may be provided with a ridge to prevent slipping of the tightening nut of the clamping bolt.
Patent GB-754733-A (GB)
Title: Improvements in and relating to tanks for oil-immersed electrical apparatus
Inventor: STARLING LESLIE LEONARD
IPC: H01F27/40
Filed: 1954-02-19
Abstract: 754,733. Transformers. ENGLISH ELECTRIC CO., Ltd. Feb. 18, 1955 [Feb. 19, 1954], No. 4946/54. Class 38 (2). An oil-immersed transformer 1 is housed in a tank 2 through which passes a pipe 9 having at its remote end a diaphragm 11 rupturable by a sudden rise in pressure, the end of the pipe within the casing ending in an opening which is everywhere below the tank cover and directed upwards so that bubbles of gas developing in the oil do not pass into the tube 9. These bubbles pass into tube 7 leading to a header tank 6 and may operate a Buchholz relay 8. Pipe 9 rises above the liquid level in the header tank 6 and then curves over so that escaping oil is directed downwards, shroud 10 reducing scattering of pieces of the ruptured diaphragm.
Patent GB-608175-A (GB)
Title: Improvements in bag-making machinery
IPC: B31B23/00
Filed: 1946-02-18
Abstract: 608,175. Paper bags. GEDDES, C. L., and CHADWICK & SONS, Ltd., J. Feb. 18, 1946, No. 4954. [Class 94(ii)] A tube A of paper, or the like, passes over a former 10 and the two sides are severed simultaneously by rotary cutters 20, 21 which co-act with transverse ridges 11, 12 extending right across the former at an angle to the edges of the former. Recesses 13, 14, 15 are arranged as shown. The ridges 11, 12, may be on separate members secured to the former by screws. The tongue thus formed on the portion severed from the paper tube, is turned up and used to seal the bag bottom.
Patent GB-713434-A (GB)
Title: Improvements in or relating to capacitors and the manufacture thereof
IPC: H01G13/00
Filed: 1951-03-01
Abstract: A capacitor section with terminals exposed at the ends of an encompassing tubular pre-fabricated casing is impregnated with a mixture of an unsaturated alkyd resin having an acid number below 20 and a compatible liquid monomer such as styrene, the mixture then being copolymerized, suitably at a temperature of 150 DEG F.  As an unsaturated alkyd resin there is specified one derived from maleic anhydride and ethylene glycol as principal constituents, as described in Example 4 of Specification 679,539.  The polymerization step may be conducted in the presence of catalysts and inhibitors.
Patent GB-433781-A (GB)
Title: Improvements in or relating to vehicle lamps
IPC: B60Q1/124
Filed: 1934-02-15
Abstract: 433,781. Directing vehicle lamps. BENNETT, E., 57, Moorfields, Liverpool. Feb. 15, 1934, No. 4982. [Class 75 (iii)] A headlamp a is mounted on a housing b and is secured to a spindle d adapted to be rotated by a spindle g connected adjustably at the outer end by an arm and a link with the steering drop arm or an adjacent arm operating therewith. As shown, the housing b is provided centrally in a tubular carrier c secured by brackets as to the dumb iron bracing or bumper bar of a vehicle, and the spindle g is provided with a crank-pin f engaging a groove d<4> in the spindle d. The crank-pin f <1> is allowed a limited movement before turning the lamp, which is held in the normal position by a spring-pressed plunger m engaging a flat d<5> on the spindle d. The spindle g is held against longitudinal displacement by a spring n, and the spindle d is held against movement in the lamp bearing a<2> by opposed flats d<3>. Alternatively, the spindles d, g may be connected by bevel gearing. A second lamp may be pivotally mounted on the carrier c and coupled with the lamp a for simultaneous operation, and the lamp or lamps may take the place of the usual headlamp or lamps. Reference has been directed by the Comptroller to Specifications 177,672, 207,770, 300,173, and 314,420, [all in Class 75 (iii)].
Patent GB-797343-A (GB)
Title: Improvements in or relating to colour television systems
IPC: H04N11/18
Filed: 1954-02-19
Abstract: 797,343. Television. GENERAL ELECTRIC CO., Ltd., BIGGS, A. J., BLIGH, N. R., and BRIDGES, D. H. May 19, 1955 [Feb. 19, 1954], No. 5008/54. Class 40 (3) A compatible colour television system comprises means for generating, separately, a relatively high definition monochrome signal and a relatively low definition frame or line sequential colour signal (representative of the .same subject) which are transmitted simultaneously in such manner that the signals may be separately derived without mutual interference. In the arrangement shown, the high definition monochrome signal, consisting of doubly interlaced frames of 202 ¢ lines with a repetition frequency of 50 frames per second, is generated by a first television camera 1 (Fig. 1), and after modulation in 5 on to a carrier wave of a first frequency from oscillator 7 is supplied via a restigial sideband filter 9 to a transmitting aerial 11. The low definition colour signal consisting of doubly interlaced. frames of 67¢ lines with a repetition frequency of 150 frames per second, the frames being, cyclically, representative of the Red, Green and Blue aspects of the subject and the total bandwidth of which is limited to 1 mc/s. is generated by a second television camera 2 and co-operating three colour filter disc 3 and after modulation in 6 on to a carrier wave of a second frequency from oscillator 8 is supplied via a restigial side-band filter 10 to aerial 11. The frequencies of the two carrier waves may be such that the two signals occupy separate frequency bands or, the colour signal may be modulated on to a sub-carrier wave, the frequency of which is an odd multiple of half the line repetition frequency (which is the same for both signals) and which is modulated on to a main carrier wave together with the monochrome signal. At a colour receiver (Fig. 2), filters 15 and 16 separate the colour and monochrome signals respectively, the former signals being employed to reproduce colour images via picture tube 22 and colour filter disc 23, and the latter signals, frequencies below 1 mc/s. in which are removed by means of a H.P. filter 25, employed to reproduce monochrome images of high definition via picture tube 27. The two images are then combined optically on a viewing screen 28, extreme accuracy of registration being unnecessary owing to the low definition of the colour. Also, owing to this low definition, the camera 2 and the picture tube 22 may have comparatively coarse resolution. For monochrome reproduction a conventional monochrome receiver may be employed. With suitable modification the invention may be applied to cases where the colour signal is line sequential instead of frame sequential.
Patent GB-1375152-A (GB)
IPC: C08K5/3445
Filed: 1973-02-01
Abstract: 1375152 Diphenyl derivatives BAYER AG 1 Feb 1973 [2 Feb 1972] 5041/73 Heading C2C [Also in Divisions C3 and C4] 5,5<SP>1</SP> - Dichloro - 4,4<SP>1 </SP>- diamino - 2,2<SP>1</SP> - dimethoxy-diphenyl is prepared from 4-chloro-3- nitroanisole by a reductive reaction in alcoholic potassium hydroxide in the presence of zinc dust.
Patent GB-419848-A (GB)
Title: Improvements in or relating to hosiery knitting machines
IPC: D04B11/22
Filed: 1934-02-15
Abstract: 419,848. Knitting-machines. HILSCHER, A., HILSCHER, C., and HILSCHER, E., (trading as HILSCHER, G.), 72B, Dorfstrasse, Chemnitz, Germany. Feb. 15, 1934, No. 5069. Convention date, Feb. 22, 1933. [Class 74 (ii).] The presser bar 5 of a straight - bar machine is supported upon and guided by the sinker head 1. Auxiliary presser bars may be detachably secured to each end of the main presser bar 5.