baber/WOPTO huggingface dataset:
Patent GB-491248-A (GB)
Title: Improvements in or relating to means for stopping electrically driven looms
IPC: D03D51/00
Filed: 1937-01-29
Abstract: 491,248. Control of motors. SCHORCHWERKE AKT.-GES. Jan. 29, 1937, No. 2710. Convention date, Jan. 31, 1936. [Class 38 (iii)] -Non-regenegative braking.-For stopping an electrically driven loom the driving motor is subjected to reverse-current braking until a predetermined position of the slay is reached whereupon the motor is disconnected, and simultaneously with the electric braking a spring buffer is brought into action, the buffer of which co-operates with a stop and defines the stopping point of the loom, and the springs of which return the slay after it has been stopped to the open shed position. In the event of a disturbance, for example, thread breakage, a contact 7 is closed to energize an electromagnetic switch 23 to reverse the motor connections, and a coil 8 is energized to move a pawl 11 into engagement with a lever 14 pivoted on a lever 12 keyed to the driving shaft 1. A spring 16 is connected between the levers 14 and 12 and when the lever 14 engages the pawl 11 the shaft is subjected to the electric braking action and to a buffer action due to the spring 16. The continued movement of the braked shaft is limited by a stop 21 engaging the lever 14 and the pawl 11 is rotated to open a contact 24 and deenergize the operating coils 8 and 23. A nose 22 on the lever 14 retains the pawl 11, and the strained spring 16 returns the shaft 1, the shaft stopping in its desired position with the slay 2 in the position of open shed c. In a modification, Fig. 2 (not shown), the pawl 11 engages a lever freely mounted on the shaft 1 and coupled by springs to a cam disc keyed to the shaft, the lever moving between stops on the disc. A contact which terminates the electric braking is operated by the cam through the pawl 11, and the circuit of the coil 8 operating the pawl is interrupted by a contact operated by the cam acting also through the pawl but during the return motion effected by the springs. The pawl 11 is formed with a surface engaging the cam disc and acting as a friction brake. The contact 7 which initiates braking may be operated in response to different kinds of disturbance. The loom ram brake may be arranged as the spring buffer and may have associated with it the contact 24. The opening of the contact 24 to terminate the electric braking may be effected by a time lag switch or a centrifugal switch.
Patent GB-755934-A (GB)
Title: Map-spot indicator
IPC: G09B29/10
Filed: 1953-01-30
Abstract: 755,934. Maps. WILLIAMS, S. E. Feb. 1, 1954 [Jan. 30, 1953], No. 2790/53. Class 146(2) A cabinet for showing a map, chart, or the like has a pin-pointing device comprising a pair of movable rods 17 each mounted for movement in a direction perpendicular to its length and a carrier 20 mounted at the intersection so as to be freely slidable on both rods 17. The carrier 20 may have a lamp for illuminating a part of the map or an electro or permanent-magnet for attracting an indicator sliding on the front of the map. Movement of the rods 17 is effected by carriages 15 sliding on rails 12, 14 and operated by endless cords 18, 19 driven by hand-wheels 10, 11 until cross wires or pointers, one to each pair of carriages 15 and which project through slots to the front of the cabinet, are at the required register on scales formed along the edges of the map. In a modification, each rod 17 is mounted on one carriage threaded on leadscrews driven by gearing from the hand wheels. The other end of each rod is guided by a taut wire. The map may be surrounded by illuminated advertizing space.
Patent GB-104508-A (GB)
Title: Improvements in Watertube Steam Generators.
Inventor: ROBUTTI ANGELO PARIDE
IPC: F22B21/08
Filed: 1917-02-26
Abstract: 104,508. Robutti, A. P. Feb. 24, 1916, [Convention date]. Water-tube boilers.-In a boiler having three drums situated at different levels and connected by groups of tubes acted upon by the furnace gases in succession, the group connecting the bot. tom drum 3 to the intermediate drum 1 has a slight inclination to the horizontal, and the group 5 connecting the intermediate drum to the upper drum 2 is sharply inclined. The third group 6 is vertical and is protected, together with the bottom drum, from direct radiation from the furnace by a baffle 9. A superheater controlled by a damper is arranged in the path of the gases between the upper and lower parts of the group 5. Water is fed into the upper drum from an economizer 7.
Patent GB-524324-A (GB)
Title: Improvements relating to the panelling of cubicles
IPC: H02B1/00
Filed: 1939-01-27
Abstract: 524,324. Panelling for cubicles. HOPKINSONS, Ltd., BROWN, R. L., and DALE, W. B. Jan. 27, 1939, No. 2828. [Class 20 (iv)] A detachable panel a for cubicles such as are used in power stations is secured by fitting the upper edge into a recess b in the framing, the lower edge being secured on a ledge c above the floor level by the beaded edge d of a strip e which is formed with slots i to take the attachment bolts g.
Patent GB-657174-A (GB)
Title: Improvements relating to the harvesting of beet and like root crops
IPC: A01D27/02
Filed: 1949-02-02
Abstract: 657,174. Root crop harvesters. STANDEN & SONS, Ltd., F. A., and STANDEN, P. Feb. 2, 1949, No. 2870. [Class 6(iii)] Growing root crops are topped by a frame structure comprising upper and lower frames 1, 5, pivoted at their rear ends to members attachable to the front of a powered tractor, disc cutters 15 being mounted on the upper frame and feeler discs or wheels 27 on the lower frame, a root-topping cutter 28 being automatically positioned by the discs or wheels 27, and means being provided whereby the upper frame can be lifted as a continuation of the upward movement of the lower frame when it is required to raise the implement to an inoperative position. In the construction shown the implement comprises upper and lower frames 1, 5, pivoted respectively at their rear ends upon pivots 7, 13, to members 9, 11 connected to the front of the tractor A. The upper frame 5 is fitted with rotatable discs 15 which trim off any very widely spreading leaves. The lower frame, which is counterbalanced by springs 18, is fitted with feeler discs 27 which may be driven by the power take-off shaft of the tractor and beneath the lower frame and pivoted at 30 to it are arranged the side members 29 of the topping knife 28. Adjustment between these bars and the frame 5 is effected by the nut of a spring suspension device 31, 32. The frame 5, and with it the topping knife, are lifted by a cable 22, such lifting movement serving also, through an adjustable lost motion device 23, 24, to lift the frame 1.
Patent GB-180382-A (GB)
Title: Improvements in or relating to liners for pneumatic tyres
IPC: B60C19/12
Filed: 1921-08-26
Abstract: 180,382. Taylor, W. C. Aug. 26, 1921. Jackets and covers. - A liner for use between the air-tube and cover consists of a rubber band which is not less than one-eighth of an inch thick at the tread portion and is reinforced on one or both faces with bias-cut fabric D, F. In the construction shown in Fig. 2, the rubber body consists of inner and outer bands E, G with intermediate spaced strips F leaving cavities F<1>. Under pressure in use, the cavities F<1> result in the formation of ribs or corugations on the outer surface of the liner.
Patent GB-1108182-A (GB)
Title: Method for prevention of marine fouling
Inventor: CZEKANSKI JOSEPH
IPC: B63B59/04
Filed: 1964-01-23
Abstract: Growth of marine fouling on the surfaces of a ship's hull is prevented or delayed by emitting jets of water-dispersed toxin such as trialkyl or triaryl tin compounds, e.g. tributyl tin oxide, at spaced positions along the hull.  The water-dispersed toxin may have fine air or gas bubbles dispersed therein to form a foam which may be stabilized by the addition of a surface active agent. The water-dispersed toxin may be emitted from nozzles in manifolds (1) Fig. 2 (not shown) close to the keel and in further manifolds close to the bilge keels of the hull.  Air bubbles may be emitted from additional manifolds (2) below each manifold (1) at the bilge keels to accelerate the upward movement of the foamed water-dispersed toxin. As illustrated in Fig. 1 (not shown), sea water, as it is pumped through a pipe (6), has injected into it a tin toxin-surface active agent solution from a tank (3) and air from a compressor (10). The resultant air-in-water dispersion is pumped to the manifolds (1). Alternatively, a water-in-gas dispersion may be used.
Patent GB-1515241-A (GB)
Title: Beta-lactam antibiotics
IPC: A61P31/04
Filed: 1976-01-27
Abstract: 1515241 Compositions containing 4-oxa-1- aza-bicyclo [3.2.0] heptan-7-ones BEECHAM GROUP Ltd 9 Dec 1976 [27 Jan 1976] 2976/76 Heading A5B [Also in Division C2] Pharmaceutical compositions having antibacterial and #-lactamase inhibiting activity comprise, as active ingredient, a 4-oxa-1-azabicyclo [3.2.0] heptan-7-one of the general formula: wherein R is a hydrogen atom, a C 1-4  alkyl, C 2-4  alkenyl or C 2-4  epoxyalkyl group, or a C 1-4  alkyl group substituted by one or two radicals selected from halogen, hydroxyl, C 1-7  etherified and acylated hydroxyl, azido, phthalimido, SR', SOR' and SO 2 R', in which R' is a C 1-6  alkyl or aryl group, together with a pharmaceutically acceptable carrier and optionally further therapeutic agents such as penicillins, e.g. benzyl-penicillin, phenoxymethyl-penicillin, propicillin, hetacillin, ampicillin, amoxycillin and in vivo hydrolyzable esters thereof. They may be administered as tablets, capsules, creams, syrups, suspensions, solutions, reconstitutable powders and sterile forms suitable for injection or infusion.
Patent GB-683407-A (GB)
Title: Improvements in or relating to voltage regulators
IPC: G05F1/32
Filed: 1950-02-06
Abstract: 683,407. Control systems for consumption apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 6, 1950 [Feb. 9, 1949], No. 2982/50. Drawings to Specification. Class 38 (iv). A load voltage regulator is constituted by a series combination of a variable inductancesuch as a premagnetized choke-and a load at which the voltage is maintained substantially constant, the combination being connected to an alternating voltage supply, characterized by the fact that the variable inductance has connected in parallel with it an ohmic resistance having a value which is high relative to the value of the reactance of the inductance at small differences between the voltages of the supply and the load, and is relatively low at larger differences therebetween. The value of the resistance is preferably matched to that of the reactance of the inductance, the compensating action occurring because of the phase shift of the voltage across the resistance with respect to that across the load. The resistance may be variable, which variation may be automatic, to ensure an enhanced performance.
Patent GB-1294551-A (GB)
Title: Thickened fuel compositions
Inventor: COHRS WILLIAM ELRAY
IPC: C10L7/02
Filed: 1970-01-21
Abstract: 1294551 Fuels DOW CHEMICAL CO 21 Jan 1970 [21 Jan 1969 24 Nov 1969] 3004/70  Heading C5G [Also in Division C3] A thickened fuel comprises a normally liquid hydrocarbon containing 0À2 to 10 weight per cent of a synthetic organic polymer soluble in the hydrocarbon, the polymer having 0À1 to 3 weight per cent (based on the polymer) of oxygen-containing compound polymerized therein, the oxygen-containing compound being selected from olefinically unsaturated copolymerizable (a) acids containing up to 6 carbon atoms, (b) amides containing up to 4 carbon atoms, e.g. acrylamide, (c) hydroxyalkyl acrylic esters, e.g. 2-hydroxyethyl methacrylate, 2- hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 3-hydroxypropyl acrylate and (d) sulphonic acids, e.g. 2-sulphoethyl methacrylate, 2-sulphoethyl acrylate, 3- vinylbenzenesulphonic acid, 2-benzenesulphonic acid. The preferred copolymer is t-butylstyrene/ methacrylic acid. Jet fuel is specified.
Patent GB-565356-A (GB)
Title: Improvements in portable buildings
IPC: E04B1/343
Filed: 1943-02-24
Abstract: 565,356. Portable buildings; glasshouses. HENFREY; P. Feb. 24, 1943, No. 3013. [Class 20 (i)] A skeleton metal framework for a portable building or a greenhouse is formed of right- and left-hand frameworks each comprising an integral upright 1 and inclined roof rafter 2, joined at their apices by gusset plates 2a, the complete frameworks being interconnected by a ridge-member 3. The bars may be of T- section and may fit into T-section sockets 6 attached to ground plates 7, the half frames may each be stiffened by an internal diagonal strut. The ridge-piece is prefabricated, Fig. 22, and comprises two angle-irons 36 set at an angle with respect to each other, a crossconnector 37, a nut plate 40, a cap-piece 38 and securing bolts 39 passing between the capplate and the nut plate, the cap-plate being recessed to receive the edges of the angles and the upper edges of the roof panels. The lower edges of the roof panels are clipped to members 32, Fig. 23, attached to wooden eaves boards 29 secured to the framework members and also to angle purlins 27 which receive the upper ends of the side panels 25 secured by clips 28. In a modification, the angle purl in is not secured to the wooden eaves board but is only clipped thereto. The lower ends of the side panels are received in grooves in the upper edges of bottom boards 8, Fig. 30, which are clamped to the uprights and supported at their lower edges in short length Z-section bars 9 welded to the uprights. The end closures comprise shaped panels fitting between transverse transoms 4a and the bottom boards and a door 17 fitting between frame members 18, a raised transom 19 and the base board. Feathering strips with recesses to receive the recessed edges of the end roof panels are fitted at each gable corner and turn buttons are fitted thereto to secure the upper edges of the end closure panels. The building may comprise several bays disposed laterally and the abutting internal uprights in this case have their ends disposed in common socket-plates, as shown in Fig. 17. Gutters 43, Fig. 21, of wood may be supported by the framework members and are provided with edge bars and clips for supporting the lower edges of the roof panels 45. For large span roofs, intermediate purlins 51, Fig. 24, are fitted and provided with bars 52 and clips to form an overlapping joint for the roof panels. Drainage pipes may be fitted at intervals to the lower portions of the roofs and to the ends of the gutters. Hinged vent lights may be fitted to the side lights as and where required.
Patent GB-489715-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N5/067
Filed: 1937-02-02
Abstract: 489,715. Television transmitters. BAIRD TELEVISION, Ltd., and BROWN, A. J. Feb. 2, 1937, No. 3061. [Class 40 (iii)] Picture and synchronizing signals are mixed by applying them to the grids of two valves 9, 14, respectively, so as to produce currents in opposite directions in the common anode impedance 11, the two valves being so biassed as to be nonconducting in the absence of applied signals. Synchronizing signals may also be applied to a gas-filled tube 5 to render it non- conducting and break the circuit between the picture signal amplifier 2 and the valve 9 during the synchronizing signal period..
Patent GB-1215855-A (GB)
Title: Improvements in or relating to reclosable cartons
IPC: B65D5/54
Filed: 1968-01-22
Abstract: 1,215,855. Cartons. KELLOGG CO. 22 Jan., 1968 [23 Feb., 1967], No. 3211/68. Heading B8P. A carton comprises side walls 10, 13 and top flaps hinged thereto, the top flaps comprising an opposed pair of dust flaps 19, 21 and an opposed pair of interengageable closure flaps 24, 27, the lowermost one 24 being formed with a slot 25 which receives a tongue 26 from the uppermost flap 27 which flap 27 is formed with perforation lines defining the tongue 26 and with perforation lines 31 which extend obliquely from the root of the tongue in a direction towards but spaced from the hinge line of the flap.
Patent GB-975031-A (GB)
Title: Ion permeable membranes
IPC: C08J5/22
Filed: 1961-01-27
Abstract: An ion permeable meebrane comprises a homogenous fusible film made from a polymer derived from an ethylenically unsaturated monomer, and reinforcing fibres. Ion exchange groups may then be introduced by further reaction. Exemplified methods of making the membrane are by graft polymerizing styrene, n-butyl methacrylate, 5-vinyl -2- picoline and 2-vinyl pyridine on to a glass-fibre supported film of polytetrafluoroethylene by a bulk method using gamma radiation or benzoyl peroxide as initiator. Alternatively an unsupported ion exchange membrane (compositions of polyethylene and polystyrene substituted with benzyl trimethyl ammonium groups of sulphonic acid groups) may be shredded, spread over a heated plate, a layer of woven glass cloth spread on top and optionally a further layer of shredded material, and the whole assembly pressed beneath another heated plate to form a fresh membrane. This technique is also applicable to a mixture of polytetrafluoroethylene and polystyrene sulphonic acid with non-woven glass fibres and to a mixture of polychlorotrifluoroethylene and poly-5-vinyl-2-picoline with asbestos fibres.  Alternatively polytetrafluoroethylene powder may be grafted with styrene using radiation and benzoyl peroxide in bulk, by storing the powder in styrene without initiator, or in emulsion using radiation and pressed on to glass cloth or glass paper followed by further chemical reaction.  Alternatively fluorocarbon rubber-"Viton A" (Registered Trade Mark)-may be mixed with polystyrene and dibutyl phthalate and the composition calendered on to glass cloth and thereafter further reacted. The membrane may also be made by irradiating polytrifluorochloroethylene powder, immersing in styrene containing benzoyl peroxide until grafting, takes place, then moulding the resulting polymer on to glass paper.
Patent GB-736990-A (GB)
Title: Improvements in and relating to the production of sheets and shaped elements from mineral fibres and binding agents
Inventor: MUTHMANN FRITZ
IPC: C04B30/02
Filed: 1953-02-05
Abstract: Sheets and shaped elements of coherent, porous or cellular material are obtained by impregnating mineral wool uniformly with a dispersion of a bituminous or oily binding agent having a high carbon content and capable of conversion by pyrolysis and oxidation into a non-sticky elastic form and subjecting the impregnated wool, optionally after drying to a heat treatment to a partial oxidation and pyrolysis so as to deposit a non-sticky elastic film by which mutually adjacent fibres are bound to one another.  The binder may be tar, bitumen, spindle oils, wet steam oils, hot steam cylinder oils, crude paraffin or cup grease. Preferably the mineral wool is impregnated with the binder, and then a gas or gas mixture at about 320 DEG C. passed over the wool for p  2-3 minutes.  Specification 518,429, [Group VIII], is referred to.
Patent GB-716313-A (GB)
Title: Improvements in or relating to area meters for agricultural implements
Inventor: HORSTMANN BEVAN GRAHAM
IPC: G01B3/12
Filed: 1951-02-10
Abstract: 716,313. Odometers graduated to read areas; counting-apparatus. HORSTMANN FARMS, Ltd. Feb. 11. 1952 [Feb. 10. 19511. No. 3289/51. Classes 106 (1) an] 106 (3) An area meter for an agricultural tractor includes a dial or counter mechanism coupled to the tractor through driving means including a variable speed gear having alternative ratios each of which is a function of the quotient obtained by dividing a unit area by a number representing the effective width of an implement to be mounted on the tractor, and a scale calibrated in units of width for indicating the correct setting for the variable speed gear. The area meter shown is actuated by impulses sent to a solenoid 20, Fig. 2, on the closure of contacts 57, Fig. 7, by a stud on wheel 54 coupled to the tractor wheel 51. The solenoid rocks a shaft 16 and quadrant 15 which meshes with a pinion 12 carrying a pawl-supporting arm 13, Figs. 2 and 5, whose movement is stopped by an adjustable eccentric portion 37a on one of three pillars 37 connecting a front plate 36 to back frame plate 10. The extent of the spring-urged return movement of the arm 13, and therefore the number of teeth the ratchet wheel 23 is stepped on, is determined by the position of a member 39a which carries a detent pawl 39b and a stop 39c for the actuating pawl 13a. The member 39a is carried by an arm 39, Figs. 2 and 6, which is set by a bush 38, Fig. 1, in accordance with the width of an implement mounted on the tractor, a scale (in feet) on the arm being visible through window 41. The units area dial 34, visible through window 40, is operated from the wheel 23 through two sets of differential reduction gearing, each comprising a planet wheel 24 or 29 which meshes with a fixed sun wheel 25 or 30 and a rotatable sun wheel 26 or 31 having 24 and 25 teeth respectively. During every rotation of the dial 34, a transfer stud 46, Fig. 6, engages a pawl-carrying lever 44 to step on a hundreds dial 43 visible through window 43b. The dials 34, 43 may be reset by turning knobs 35, 44, Fig. 1, the former knob acting through dog-clutch formations 35a, Fig. 2.
Patent GB-1114345-A (GB)
Title: Automatic frequency response control system for amplifiers
IPC: H03G5/20
Filed: 1966-01-25
Abstract: 1,114,345. Negative feedback arrangements. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 25 Jan., 1966 [9 Feb., 1965; 4 June, 1965; 30 July, 1965 (2)], No. 3313/66. Headings H3W, H4J and H4R. The frequency response of an amplifier is made to vary in accordance with signal level, by providing a negative feedback path comprising a low-pass filter and also a non-linear attenuation circuit including a resistance whose effective value depends upon the voltage applied to it. The arrangement is described as applied to an amplifier comprising driver stage V1, Fig. 6, phase-splitter V2 and single-ended push-pull output stage V3, V4 to reduce the low-frequency response at low signal levels and so reduce hum and noise. A feedback path is provided comprising potentiometer 5, 7, the lower arm of which is a voltage-dependent resistor, and a low-pass filter comprising series resistor 8a and shunt capacitor 8d. A sharper drop in response may be obtained by the addition of inductance in series with the series resistor (Fig. 9, not shown). Feedback of the type described may be applied overall to a system comprising an amplifier feeding a loud-speaker which is coupled to a vibration velocity detector (9, Fig. 13, not shown). The invention is also described as applied to an arrangement in which amplifier 3, Fig. 15, feeds loud-speaker 4, which is accommodated in a closed cabinet, and an improved low-frequency response is obtained by the provision of negative feedback around the amplifier alone via network 10, 11, 12, and in addition via a differentiating network 13, 14 connected to a vibration velocity detector 9 coupled to the loud-speaker 4. In this, a further feedback network comprising potentiometer 5, 6, voltage-dependent resistor 7 and low-pass filter 8 is connected in parallel with the feedback network around the amplifier. As applied to a stereophonic amplifier (Fig. 18, not shown) the outputs of the two channels are combined by means of a resistance network (5, 5<SP>1</SP>, 6) including a voltage-dependent resistor (7) and fed back via a low-pass filter (8) to the inputs of both channels, on the basis that low frequencies are distributed equally between both the channels. The arrangement may also be modified so that the increase in low-frequency response occurs at low signal levels, by placing the voltage-dependent resistor (7) in series in the negative feedback path (Fig. 19 not shown). This arrangement may be preceded by a filter (17) giving an increased response at low frequencies, so that the overall response is level at high signal levels but low frequencies are enhanced at lower signal levels,