baber/WOPTO huggingface dataset:
Patent GB-554987-A (GB)
Abstract: 554,987. Protective cut-out arrangements; electromagnetic and thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 29, 1942, No 1218. Convention date, Jan. 30, 1941. [Class 38 (v)] A motor-protective device, which can be adapted to meet stalled as well as normal running conditions, or modified to prevent continuous operation of intermittently-rated motors even at no-load, comprises elements responsive to both current and voltage of the motor, the elements being so interconnected mechanically that they simulate the particular heating conditions obtaining in the motor in the given operating conditions. In Fig. 1, a pair of bimetallic elements 14, 30 are mounted in separate compartments of a casing adjacent respective heaters 25, 32, and are mechanically interconnected by an insulating link 31. Strip 14 is adapted to move, when heated, so as to separate contact 17 from a contact 18, and strip 30 may be adapted to move so as to assist or oppose strip 14, in the latter case acting also as ambient-temperature compensator. In Fig. 3, heater 32 is in shunt with the motor 35 and heater 25 in series, the contacts 17, 18 being either directly in the motor-circuit or, as shown, controlling a circuit-breaker 39 of the automaticreset type. If the strip 30 is in opposition, the device is suitable for overload and stalled motor protection and in this case the length of time the motor is "on" depends on the outputs of the heaters, that of heater 25 being dependent also on the current. Since overloads are only two to three times normal current, strip 14 heats comparatively slowly and strip 30 is energized for sufficient time for its output to be appreciable, so that its retarding effect lengthens the " on " interval. With stalled-motor conditions, however since the motor standstill impedance is low. heater 25 will heat very quickly and strip 14 will at once overcome strip 30 before heater 32 has had time to heat up. If the strip 30 assists, however, since its effect is proportional to the "on" time of the motor and hence to the iron-losses, and the effect of strip 14 is responsive to the "on" time and to current, the combined effect is proportional to the sum of iron and copper losses, that is, to the total heat dissipated while the motor is "on." Continuous operation of an intermittently-rated motor even on no-load is thus prevented. In Fig. 4, the strips 51, 52, interconnected by insulation 53, are riveted at 50 inside a pair of tubes 46 serving as short-circuited secondaries to series and shunt coils 48, 49, respectively, the tubes also containing iron inductive-heater members 45. The strips may assist or oppose one another in opening contacts 55, 56. In Fig. 6, opposing or assisting series and shunt coils 62, 65 act at opposite ends of a beam 58, and are opposed by time-lag devices 64, 67 to provide the necessary time-factor in separating contacts 60, 61.
Patent GB-1363782-A (GB)
Title: Hydraulic actuators
IPC: F15B11/00
Filed: 1972-07-31
Abstract: 1363782 Hydraulic motor control circuits HOUDAILLE INDUSTRIES Inc 31 July 1972 [13 Oct 1971] 55821/73 Divided out of 1363781 Heading F1P The description and drawings are substantially identical with those of the parent Specification 1363781 but the claims are different.
Patent GB-1467526-A (GB)
Title: Top stops for sliding clasp fasteners
IPC: A44B19/60
Filed: 1974-12-30
Abstract: 1467526 Top stops for sliding clasp fasteners YOSHIDA KOGYO KK 30 Dec 1974 [29 Dec 1973] 55988/74 Heading E2S  The invention relates to a sliding clasp fastener of the type which comprises a pair of stringer tapes 10, 10 each having a continuous coupling element 13 arranged on one surface thereof so as to extend along its one longitudinal edge adjacent the other stringer tape the coupling element being made of synthetic resin filament and including a series of coupling heads 16 arranged along one longitudinal edge of the coupling element and a series of connective portions 17 arranged along the other longitudinal edge of the coupling element, and a slider 11 slidable along said coupling elements and including a body having a flared top end and a contracted bottom end, said slider body including a front wing 18 and a back wing 19 which are interconnected by a web 20 and said front wing having a pair of side flanges 21, 21. According to the invention a pair of top stops 26, 26 made of synthetic material, are fused to the stringer tapes at the upper extremities of the coupling elements, respectively, each of the top stops integrally comprising a stop portion 28 against which the top edge of one of the side flanges 21 of the front wing abuts when the slider is moved along the coupling elements to its predetermined topmost position, and a guide portion 27 which is substantially in the shape of a right angled triangle, as seen in plan view, and which generally tapers in a direction away from the top end of the fastener, the guide portion 27 being adapted to enter relatively into the slider body through the flared top end when the slider is moved close to the said topmost position and hence to guide the slider to said top-most position. Further according to the invention, the stop portion 28 of each top stop is substantially rectangular in shape and is greater than the guide portion 27 both in height and in a dimension in a transverse direction of the tape, the stop portion 28 and the guide portion 27 of each top stop enveloping and uniting integral with several of said connective portions 16, including the top-most one, of the corresponding coupling element. As shown in Figs, 1, 2, each coupling element 13 is stitched at 14 to one surface only of the respective tape 12 with the aid of a core 15, the top stops 26, made e.g. of nylon, being fused to the respective tapes and to several connective portions 17 adjacent the upper extremity of the fastener and the top-most coupling head 16, if necessary, being removed.
Patent GB-1455462-A (GB)
Title: Material handling apparatus
IPC: B66C1/58
Filed: 1973-12-04
Abstract: 1455462 Grippers J C YOUL 4 Dec 1973 [6 Dec 1972] 56050/73 Heading B8H A gripper attachment for mounting on the three point linkage of a tractor for handling logs, comprises a pair of pivotally interconnected jaws 9 mounted by way of a universal coupling 6 to the upper end of a support post 14 and a chain or cable 26 whose ends are attached to respective jaws and which passes around pulleys 29 mounted on the post 14 whereby to limit the movement of the jaws relative to the post. The jaws have upper extensions 35 with a hydraulic actuator 8 connected therebetween and one of the jaws has a pair of log engaging knife edges 12 to receive the log engaging knife edge 12 of the other jaw therebetween when handling logs of relatively small diameter. A lateral support 15, secured to the lower end of the post 14, mounts a pair of arms 19 which together with a bracket 17 serve for mounting the attachment on the lift linkage of a tractor and springs 33 connected between brace members 18, connected between the arms 19 and the post 14, and the jaws to bias the latter into the position shown in Fig. 1. In an alternative embodiment Fig. 10 (not shown) the frame (14) is pivotally mounted on a wheeled chassis having arms (36) for attachment to the lift linkage of a tractor and a draw bar (41) for attachment to a coupling on the tractor.
Patent GB-1383610-A (GB)
Title: Metal tear-off cap
IPC: B65D41/42
Filed: 1972-12-05
Abstract: 1383610 Caps for bottles SEIDEL KG Gebr 5 Dec 1972 [9 Dec 1971] 56076/72 Heading B8T A metal closure cap to be secured by crimping has a tear-off strip 1 which has punched-out portions 4 and 5. A holding tab 10 made of plastics or paper is secured to the tear off strip through the punched-out portions by bonding or welding at 4 and 5. The projecting portion of the holding tab is temporarily held in place by the small punch hole 11. In various modified versions, the punched-out portions may be a different shape and there may be more than two of them, (4) and (5), Fig. 2 (not shown). The cap may have reinforcing ribs (9), Fig. 3 (not shown), or only one tear line (2), Fig. 7 (not shown) or a combination of one and two tear lines, Fig. 8 (not shown). The holding tab may be one-piece, Fig. 6 (not shown), or twopiece, Fig. 6a (not shown).
Patent GB-1306900-A (GB)
Title: Devices for removing waste adhering to welded seams
IPC: B29C65/00
Filed: 1971-12-03
Abstract: 1306900 Seaming non-metallic sheet material FR HESSER MASCHINENFABRIK AG 3 Dec 1971 [5 Dec 1970] 56119/71 Heading B5K Apparatus for welding thermoplastic films comprises a welding and severing tool 3, having upper and lower portions 12, 13 which are movable towards one another, and a device for removing waste material 2 from a welded seam, including a member 5 provided with teeth 4, and which is displaceable in a direction parallel to the direction of travel of the portions 12, 13 such that the teeth 4 can engage and remove waste material extending from a welded seam effected by the tool 3. In a wrapping machine, the member 5 is mounted on a holder 6 on guide rods 7 which are longitudinally displaceable in bearings 8 connected to drive elements 10 of the tool 3 so that the rods 7 extend parallel to the direction of movement of the tools 3. Preferably, the teeth 4 are spaced wide apart or one or a plurality of adjacent teeth are flattened, Fig. 3 (not shown). The portion 12 of the tool 3 is provided with a heatable welding and severing wire 15. As shown, two tools 3 and two members 5 are provided to seal a wrapper 11 wrapped around an article 17. In operation, the tool 3 seals and severs and the member 5 is lowered so that the teeth 4 penetrate the waste material 2 and draw it away from the wire 15 so that it is carried below the resilient edge of a remover 18 fixed to the portion 13. During subsequent upward movement of the member 5, the edge of the remover 18 draws the material 2 from the teeth 4.
Patent GB-1222264-A (GB)
Title: Improvements in gas-cookers
IPC: F23Q3/00
Filed: 1968-11-27
Abstract: 1,222,264. Igniting gas burners. JUNKERS & CO. G.m.b.H. 27 Nov., 1968 [10 Feb., 1968], No. 56187/68. Heading F4T. In a gas cooker having a plurality of burners, each burner having an associated gas switch 21-25, there is a piezo-electric ignition device 32 whose voltage is capable of being selectably applied to one, or more, of a plurality of spark gaps 26-31, each spark gap being associated with a respective one of the burners. As shown, the gas switches and an actuating member 34 for the piezo-electric device are arranged together on a switch-plate 18, and each gas switch has an associated electric switch 41-46, able to close the electrical circuit to the spark gap of the burner to be ignited, the actuating member of each gas switch being coupled to the respective actuating member of the corresponding electric switch. Two of the burners are an oven burner and a grill burner respectively, and these share a common gas switch 25, which has one " on " position for the grill and a different " on " position for the oven. Therefore these two burners cannot be operated simultaneously. In another embodiment, the sparking voltage from the piezo-electric ignition device may be simultaneously applied to all of the spark gaps.
Patent GB-1451089-A (GB)
Title: Apparatus for operatively connecting an oscillatory driving  shaft to a driven shaft
IPC: F16C1/12
Filed: 1973-12-11
Abstract: 1451089 Bowden mechanisms; linkwork ROBERT BOSCH GmbH 11 Dec 1973 [14 Dec 1972] 57245/73 Heading F2K In a wiper system for headlamps of motor vehicles in which the wiper blade arms 16 are connected to driving and driven oscillatory shafts 14, 15, and the driving shaft 14 is driven from an electric motor 11 via reduction gearing &c. 12, the driving shaft 14 is connected to the driven shaft 15 by a pair of Bowden cables the outer casings 19a of which are fixed to the wiper arm housings and the inner cores 19 of which are connected to pulleys 18 fast on the shafts 14, 15, masked pockets 21 being provided on the pulleys 18 to seat and retain inner cable end anchor blocks 20 to prevent interruption of the drive by the inner cable 19 jumping or working out of engagement with their pulleys 18 in service. As shown the pulleys 18 are moulded units and have masking retaining surfaces 24 formed adjacent the inner cable end anchor pockets 21. Alternatively, the pulleys 18 may be replaced by lever arms (31) (Fig. 5, not shown) having similar masked inner cable pockets (33). An alternative masked inner cable end anchor pocket is illustrated in Fig. 6 (not shown).
Patent GB-1178239-A (GB)
Title: Electric motor regulating systems.
Inventor: YEOMANS KENNETH ALFRED
IPC: H02P7/285
Filed: 1966-12-30
Abstract: 1,178,239. Automatic control of speed. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Dec. 18, 1967 [Dec. 30, 1966], No.58372/66. Heading G3R. In an electric motor control system, e.g. in a rolling mill, in which compensation is made for load current, the speed of response to a suddenly applied load is improved by making the system responsive to a measurement of the load torque or force when its rate of change is high, and to a measurement of the armature current when the rate of change of that is low. This is done by passing the load signal (from a shaft torque measurer or load cell on the rolls) through an RC high pass filter F1<SP>1</SP> and the current signal through a low pass filter F2<SP>1</SP>, the filters being complementary. To obtain a particular response characteristic the output from one filter, or from both combined, may be passed through a further RC network Cvt, Rvt1, Rvt2, the values of which are related to the armature inductance and resistance, and the required response time. The combined compensating signals are applied to a thyristor bridge motor control circuit, whose other inputs are a speed reference SP, a D. C. tachometer feedback Rus1, a damping signal via a capacitor Cus, and a linearizing feedback from the output of the thyristor bridge. In a modification of the compensating circuit Fig. 3 (not shown) the load signal is applied through a multiplier the factor of which is varied by a motor driven potentiometer responsive to the difference between the output of the multiplier and the armature current signal, both applied through low pass filters. This causes the two signals to be automatically matched in magnitude during low rates of change, but for high rates of change the load signal is passed on unchanged.
Patent GB-584098-A (GB)
Abstract: 584,098. Interrupters. BRITISH THOMSONHOUSTON CO., Ltd., and FRANKLIN, S. H. Dec. 8, 1944, No. 24643. [Class 38 (v)] [Also in Group XXXV] The interrupter cam of a magneto is secured to the rotor shaft by a screw offset from the centre of the shaft and by a locking plate. As shown, the cam has an inner bore for the magneto shaft 2 and an outer bore for the distributor brush holder 3 separated by a wall 1a. This wall has an oversize hole to allow adjustment of the cam about the offset fixing screw 5 which is locked by a washer 6 and a plate 4 located by pushing into a small hole in the wall.
Patent GB-1372729-A (GB)
Title: Method and apparatus for monitoring filament motion
IPC: D01D7/00
Filed: 1971-12-21
Abstract: 1372729 Winding filaments JOHNS-MANVILLE CORP 21 Dec 1971 [30 Dec 1970] 59257/71 Heading D1J [Also in Divisions B5 and Cl] In a melt spinning process wherein filaments are drawn from orifices of a receptacle containing molten material e.g. glass, nylon or cellulose acetate, the temperature of the air flow induced by the movement of the filaments is measured by positioning in close proximity to an array of the filaments and the orifices at least one thermocouple the output signals of which are monitored to detect a change in the temperature of the air flow whereby disruption or breakage of filaments is sensed. The signals may be applied to a control system for regulating the operation of the filament drawing apparatus. In the apparatus shown, streams of molten glass are extruded through orifices 11 in a bushing 10 to form filaments 13 which pass over felt pads 17 or a transfer roll (not shown) to receive a liquid dressing or finish and are assembled into strands 18 (each of which may contain several hundred filaments) in two stages by grooved rollers 14 and 19. The strands are wound into packages 20 by traverse mechanisms 21 and winding tubes 22 mounted on a collet 23. The driving motor 24 is energised through a programmer and motor control 25 which starts a traverse motor 26 and a collet reciprocation drive 27, a set time interval after the initiation of collet rotation. the strand motions impelled by the camming forms 28 and a reciprocated carriage 29 establishing the winding pattern. Signals from thermocouples 32 are fed to an amplifier 33 which calibrates the signals for operating temperatures of interest and applies them to a control system. In one application, a signal is fed to a computer programmed to maintain the operating efficiency of the bushing or providing a feed-back control signal to reduce bushing temperature while the winder is doffed.
Patent GB-1423020-A (GB)
Title: Process for preparing polyamino acid
IPC: C08G69/08
Filed: 1973-12-21
Abstract: 1423020 Polyamides AJINOMOTO CO Inc 21 Dec 1973 [26 Dec 1972 23 Aug 1973] 59288/73 Heading C3R A process for preparing polyamides comprises polymerizing an aminoacid chloride hydrochloride or bromide hydrobromide at an elevated temperature in an organic dispersion medium which has a dielectric constant below 4 at 20‹ C. and which does not contain an active H atom in the absence of a base. Specified media, are C 6-8  aliphatic and aromatic hydrocarbons, carbon tetrachloride, tri- or tetra-chloro ethylene and 1,1,1 -trichloroethane. They may be diluted with more polar solvents provided the resulting mixture is as defined. The aminoacid may be an alpha, beta or omega-amino or alpha alkylamino acid, several being specified. In specific examples the monomers are L-leucyl, L-phenylalanyl, DL-leucyl, DL-alanyl, L-alpha-aminobutyryl, L-phenylalanyl plus L-leucyl, and L- valinyl plus L-leucyl chloride hydrochlorides and gamma-methyl glutamyl bromide hydrobromide. Comparative examples illustrate the effect of the use of more polar solvents in the presence of a base.
Patent GB-1325716-A (GB)
Title: Metallurgical furnace plants incorporating a compressor driven by a furnace-gas-powered turbine
IPC: C21B5/06
Filed: 1970-12-14
Abstract: 1325716 Radial-and axial-flow compressors; gas turbine plant BROWN BOVERI-SULZER TURBOMACHINERY Ltd 14 Dec 1970 [19 Dec 1969] 59345/70 Heading F1C F1G In a metallurgical furnace plant having at least one furnace 1 discharging combustion gases through line 3 to drive a turbine 4 driving a radial-or axial-flow compressor 6 delivering combustion air through lines 9, 10 to the furnace, the compressor has stator blades 7 which are adjustable by a speed controller 11. A separatelydriven compressor (not shown) delivers compressed air into line 10 via branch line 10a to maintain a constant pressure in line 10. The speed-set value of the compressor 6 is controlled in accordance with the pressure in line 10 by means 13. Surging of the compressor 6 is prevented by opening a vent valve 15 in accordance with compressor discharge flow rates and pressure sensed at 17, 18 respectively. Overspeeding of the turbine and compressor 6 is prevented by a valve 19 and a blow-off valve 22 both controlled by a quick-acting controller 20. The adjustable stator blades may be arranged between stages or at the inlet or outlet end of the compressor 6.
Patent GB-1437500-A (GB)
Title: Apparatus for conducting electrlytic reactions
IPC: C22B61/00
Filed: 1973-12-28
Abstract: 1437500 Electrolytic diaphragm cell; Reducing Pu and/or U electrolytically GES FUER KERNFORSCHUNG mbH 28 Dec 1973 [28 Dec 1972] 60015/73 Heading C7B The cell comprises a vessel 1 with lid 2 and has a tubular diaphragm 5, e.g. of clay, dividing it into anode and cathode chambers 3, 4. A tubular anode 11, e.g. of perforated Pt-coated Ti, surrounds the diaphragm and the cathode 15 comprises a plurality of angularly spaced sheets 16, 17 e.g. of Ti, spaced around the centre axis, which is common to anode and diaphragm. The cathode described has annular end-plates 18, 19 and takes the shape of a mill wheel. A two bladed rotary stirrer 29, 30 on shaft 25 is provided. Centre member 21 is bored at 22 to provide constant level overflow. Other inlets/outlets are shown at 31, 32, 33, 36, 37, 38. Hole 33 allows oxygen to escape. The vessel and lid may be of acid resistant plastics. The cell is useful in reducing Pu (IV) to Pu (III) in the presence of U (VI), which may also be reduced to U (IV), in the presence of HNO 3  and hydrazine.
Patent GB-1437830-A (GB)
Title: Clutches
IPC: F16D43/12
Filed: 1973-12-28
Abstract: 1437830 Friction clutches FICHTEL & SACHS AG 28 Dec 1973 [5 Jan 1973] 60075/73 Heading F2C In a friction clutch for a motor vehicle wherein driven discs 11 are normally clamped between driving discs 8... 10 by centrifugal weights 5 when the speed of an input shaft 1 exceeds a predetermined value and the clutch is disengaged above the predetermined speed by a release lever 14 which acts through an end cap 28 and rods 15 on the clutch plate 8, an additional centrifugal mechanism 4 transmits thrust from the lever 14 to the centrifugal weights 5 to engage the clutch below the predetermined speed. Below the predetermined speed the centrifugal weights 4 and 5 occupy the positions shown and the lever 14 acts through the cap 28, weight 4, weight carrier 3 and weights 5 to engage the clutch. At said predetermined speed the weights 4, 5 move radially outwards, the weights 4 disconnecting the lever 14 from the carrier 3 whilst the weights 5 engage the clutch. Above said predetermined speed the lever 14 acts through the cap 28 and rods 15 to disengage the clutch against the bias of a spring 6.
Patent GB-1276799-A (GB)
Title: Heat sealing chamber for tube lagging
IPC: F16L59/10
Filed: 1970-12-31
Abstract: 1276799 Pipes; apparatus for covering METAL MFRS Ltd 31 Dec 1970 [5 Jan 1970] 61998/70 Heading F2P [Also in Divisions B8 and F4]  A length of copper tube is lagged by passing it initially through guides (11, 26, Figs. 1, 6 and 7) which firstly wrap it with insulating textile material and secondly cover it with a plastic or like sheath or layer formed with a lap joint, and then passing it through a cylindrical heating chamber 17 formed with a slot 19 through which passes hot air from an injector tube 18, the chamber 17 having a cooling jacket 22 disposed mainly away from said slot 19. The lap joint is aligned with the slot and the temperature and velocity of the coolant is adjusted so that the joint melts to form a seal and solidification is complete as the tube emerges from the chamber 17. The textile material forms a butt joint or is wound on the tube helically.
Patent GB-664382-A (GB)
IPC: H01F27/245
Abstract: 664,382. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 19, 1949 [Dec. 31, 1948], No. 32497/49. Class 38 (ii). Filling of laminated magnetic core air gaps with a subsequently hardened liquid filler or cement to reduce noise and vibration is facilitated by slots in communication therewith and of such dimensions that when the filler under pressure is applied to the slots it first fills the slots and then flows therefrom into the gaps. The invention is shown as applied to a high reactance two lamp fluorescent lighting transformer core 1, in which the slots 17 are in the central core leg 2, but in modifications the slots are in the other leg sections, and may have a constriction between themselves and the gaps. A device is described for applying the filling.