baber/WOPTO huggingface dataset:
Patent GB-875022-A (GB)
Title: Apparatus and method for heat treating a plastic tube
IPC: B29C48/91
Filed: 1958-06-09
Abstract: An apparatus for heat-treating a tube of a synthetic organic thermoplastic polymer (which tube may subsequently be converted into a tubular film), by passage of the tube in a continuous manner through a heated liquid bath, comprises a tank for the bath, a guide sleeve extending through a wall of the tank into its interior, through which sleeve the tube can pass from the interior of the tank to the outside thereof, and means for moving at least the interior end of the sleeve between positions lying above and below a predetermined position in the tank corresponding, when in use, to the surface of the liquid in the tank.  As shown in Figs. 1 and 2, a guide sleeve 1 is rigidly connected to a plate 2 which can be slid between an end wall 4 of the tank and a cover plate 5 and is provided with fixed guides 3.  When starting the heat-treating operation, the sliding plate 2 is moved to its top position manually or by means of a servomotor, the guide sleeve 1 being thereby raised to a position above the surface of the liquid.  The tube to be treated can now be passed through the sleeve 1 from the interior of the tank to the outside without the bath liquid flowing out.  The tube is then inflated by the introduction of air or other gas into its interior sufficiently to cause the tube to press against the inner wall of the guide sleeve and the plate 2 is then moved to its bottom position against the stop 7, in order to submerge the tube in the bath liquid. The tube can now be drawn continuously through the bath and out through the sleeve <PICT:0875022/IV (a)/1> <PICT:0875022/IV (a)/2> <PICT:0875022/IV (a)/3> <PICT:0875022/IV (a)/4> <PICT:0875022/IV (a)/5> <PICT:0875022/IV (a)/6> without leakage of bath liquid from the tank.  If the tube should burst in the tank or during further treatment after it has been withdrawn from the tank, the sliding plate is moved to its top position, thus preventing escape of the bath liquid from the tank. This movement of the plate is preferably effected automatically, as by means of a relay-controlled servomotor, when the gas pressure in the tube is released due to the bursting of the tube. As shown in Figs. 3 and 4, the guide sleeve 1 is mounted eccentrically in a circular plate 2 which can be rotated about its centre by a lever 8 and constitutes a wall of the tank.  The edge of the plate moves in the annular channel formed by the flange 4 and the fixed annular members 3 and 5.  Alternatively, as shown in Fig. 5, the sleeve may be centrally mounted in the plate and the portion of it within the tank may be curved.  As shown in Fig. 6, the middle portion of the guide sleeve is flexible, thus allowing the rigid interior end portion 1 of the sleeve to be raised and lowered by means of a rod 9 which can be moved vertically by means of a relay-controlled geared motor 10.
Patent GB-1245589-A (GB)
Title: Improvements in welding apparatus
Inventor: SEVERY BRIAN JOHN
IPC: B23K9/067
Filed: 1968-04-18
Abstract: 1,245,589. Control of D.C. motors. LINCOLN ELECTRIC CO. Ltd. 15 April, 1969 [18 April, 1968], No. 18423/68. Heading H2J. [Also in Divisions B3 and G3] In consumable electrode arc-welding, wherein electrode wire is moved towards and away from a workpiece, at 2, by an electric motor 5 responsive to the difference in output voltages respectively of a main welding current source 1 and a control current generator 4 so as to provide a self-adjusting arc, the main source 1 provides rectified D.C. from A.C. input, the polarity of current supplied by the generator 4 to the motor 5 is determined by a relay 11 responsive to potential difference across 2, and a starting source 3, in parallel with the main source, is arranged to heat but not melt the wire and to be rendered inoperative when the main source is operative. In operation, the main and starting sources and an auxiliary supply 13 are switched on and the armature of the generator 4 set in motion. A triple pole selector switch 8 connects the starting source 3 across 2, the auxiliary supply 13 across a starting switch 20 and its holding contacts 22, and the armature winding of the generator 4 in series with that of the motor 5 across 2, the latter circuit being initially broken by initially open contacts 9, 10. The polarity relay 11, sensing the potential difference across 2, (i) changes over contacts 6, 7 between the generator 4 and the motor 5 so that the latter is so driven that the wire is moved towards the workpiece, and (ii) changes over a contact 24 so as to connect the field winding of the generator 4 across the auxiliary supply via a variable resistor 18 and a rheostat 19. When the wire touches the workpiece, the polarity relay 11 is de-energized to revert the contacts 6, 7, 24 and the short circuit current from the starting source heats the wire to just below melting point. The starting switch 20 (e.g. push-button) is then actuated to energize a main relay 16 actuating (i) holding contacts 22, (ii) contacts 25 to connect the main source 1 across 2, (iii) contacts 15 to connect the field winding of generator 4 in series with a rheostat 17, and (iv) contacts 23, operative as the main source current increases, to disconnect the starting source 3 from 2. The starting switch 20 also actuates an auxiliary relay 21 which closes contacts 9, 10 to connect the armature windings of the generator 4 and the motor 5 in series across 2, the current determined by the contacts 6, 7 being such as to lift the wire, in opposition to the current of the main source 1 which tends to move the wire towards the workpiece. The auxiliary relay 21 also opens a contact 12 so that the polarity relay is not operative once the main source supplies current to 2. The generator 4 is so designed that its output current rises more rapidly, once switched on, than the output current of the main source 1, so that the wire is initially lifted to establish the arc. The main and starting sources and the auxiliary supply 13 all provide rectified D.C. from A.C.
Patent GB-366146-A (GB)
Title: Improvements in or relating to direction and movement signalling apparatus for road vehicles
IPC: B60Q1/34
Filed: 1931-03-17
Abstract: 366,146. Manoeuvre signalling apparatus for use on road vehicles. SCREETON, W. B., 22, Barnard Road, and ROYTHORNE, C. C., 50, Wakehurst Road, both in London. March 17, 1931, No. 18443/30. [Class 118 (ii).] Manoeuvre signalling apparatus for use on road vehicles comprises a rotatable disc bearing representations of arrows or the equivalent, which are illuminated to signal a turning movement. Enclosed within a sheet metal casing 21 of pentagonal shape is a unit consisting of a number of compartments 22 .. 27 containing lamps 34, 35, three lamps 35 being provided in the chamber 27. Windows 28 .. 33 are provided for the compartments and the casing 21 behind the windows is provided with cut-out representations of arrows or the equivalent. The lamps are coloured or the windows are glazed with coloured glass, white frost for window 28, red for windows 29, 31, green for windows 30, 33, and amber or yellow for the window 32. The compartment 27 is provided with a disc 39, with cut-out representations of arrows or the equivalent, which is rotated, to give a representation of moving arrows through the windows 33, through a pulley on the spindle 40 being frictionally geared with a wheel 42 having a shaft 41 driven by gearing from an electric motor 43 carried within a chamber 44. The motor is set in motion on completion of the circuit of the lamps 34, 35. A four-way switch is employed for working the apparatus. The lamps 34 are intermittently lit, flashed or dimmed by a projection 46 on the wheel 42 actuating blade springs of the make and brake device 45. The window 28 is visible to off-side traffic, the windows 28, 29, 30 to oncoming traffic, and the windows 31, 32, 33 to overtaking traffic. The window 28 is used for signalling to off-side and oncoming traffic that the vehicle is moving straight ahead, the windows 29, 31 for signalling to oncoming and overtaking traffic respectively that the vehicle is turning to the right, the windows 30, 33 for signalling to oncoming and overtaking traffic respectively that the vehicle is turning to the left, and the window 32 and window 33 for signalling to overtaking traffic that it may overtake with caution. Any known stopping or slowing down signalling device may be combined with the above apparatus. The casing 21 has a removable top 36 which, by means of washers and rods 37, is secured to it in a watertight manner. The top 36 may be provided with a tubular arm 38 serving as a means for attaching the device to the vehicle and as a conduit for the electric wiring.
Patent GB-198244-A (GB)
Title: Improvements in the manufacture of moulded, reinforced slabs, slats and the like of concrete and other plastic materials
IPC: C04B14/48
Filed: 1922-07-05
Abstract: 198,244. Wettstein, K. July 5, 1922. Processes.-Slabs, &c. are formed of plastic material having a large number of thin metallic filaments densely disposed at the surface. The filaments mav be wound under tension on mould plates spun first on a vertical shaft and then on a horizontal shaft, the mould plates being then placed the desired distance apart and the plastic material cast therein. The filaments are then cut at or near the edges of the mould plates and the latter removed.
Patent GB-167943-A (GB)
Title: Improvements in and relating to boxes
IPC: B65D43/26
Filed: 1920-10-04
Abstract: 167,943. Betjemann & Sons., Ltd., G., and Andrew, H. V. Oct. 4, 1920. Lids; opening-arrangements.-Two hinged lids a<2> of a box are lifted by raising a handle b<1> having sliding parts b connected to a cross-bar b' arranged in a central compartment a<3> of the box, each end of the cross-bar being pivoted to links c arranged in a slot a<4> in the corresponding end wall of the box.
Patent GB-185051-A (GB)
Abstract: 185,051. Rice, A. A., and Rice, S. C. Nov. 24, 1921. Tyres, elastic, and tyre covers, tools for removing and replacing.-A tool for manipulating split rims comprises a ring adapted to fit within the rim and having a correspondingly-placed split, means for forcing the rim ends out of alignment and means for contracting or expanding the rim periphery. The ring is formed in segments c, e having an adjustable screw-and-slot connection with the segment d, for use with rims a of different diameters. The segments c, e carry brackets j, k which are slotted at m to form trunnion bearings for nuts s, t engaged by a right-andleft screw device q, n, r. One end of the ring (the segment e shown) carries a bracket w with pivoted arms z on which rim-gripping claws y are adjusted by nuts z<1>. A thrustbolt x is arranged to bear on the other end of the ring (segment c) for forcing the rimends out of alignment.
Patent GB-350249-A (GB)
Title: Improvements in or relating to internal combustion engines of the oppositely-moving piston type
IPC: F02B75/28
Filed: 1930-06-17
Abstract: 350,249. Two-stroke engines. PENNING, C. J. H., Victorias, Negros Occidental, Philippine Islands. June 17, 1930, No. 18528. [Classes 7 (ii) and 7 (iii).] In oppositely-moving piston engines of the kind described in Specification 205,146, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], in small engines the mixture is supplied by a pair of air-cooled piston pumps 6, Fig. 1. The casing 1 surrounding the cylinders is divided at its lower end by partitions a into two independent inlet manifolds, one pump supplying only one cylinder of a pair forming an engine unit. In larger Diesel engines a rotary blower supplies air to a common inlet manifold formed in the casing. A multicylinder engine can be formed by using a number of units, which are separated by spacing pieces 43, Fig. 6; through bolts 44, which pass through rocker shafts forming part of the driving gear, hold the units together. Driving gear.-All the pistons of an engine unit of two cylinders drive on to one crank pin or to aligned crank pins. The lower pistons drive through connecting-rods 18, Fig. 1, on a central rocker bar 19, the duplicate connecting-rods 22 between this bar and the crank pin working as one of the gudgeons to which the pistons are connected. The upper pistons drive duplicate rocker bars 15, which, through outside rods 17, drive lower rocker bars ; these drive on to the crank pin through rods 20, the point of attachment of these rods to their rocker bars being on the opposite side of the rocker fulcrum to the gudgeons for the lower rocker connecting-rods. The two mixture-pump pistons 5 have a common piston-rod 7 and are driven by a gudgeon 9 carried by one of the rocker arms and working in a slot in an enlarged part of the pistonrod. Frames ; casings ; crank chambers.-For Diesel engines the main frame consists of steel plates with dished partitions 25, Figs. 5 and 6 ; after assembling the steel cylinder liners 26 in the partitions the parts are welded together. Short hollow blocks 291 are welded to the frame to receive the rocker shafts. The return connecting-rods from the upper to the lower rocker bars pass through tubes 31, Fig. 6. Access to the crank shaft and lowers rocker &c. is attainable through covers 32 held in place by through-bolts 33. The upper parts of the gear are accessible by removal of a cover 34 held in place by bolts 35 connected to stirrups 351 round the upper rocker shaft. In large-type Diesel engines the frame is composed of I-section stanchions 46, Fig. 9, with cross and longitudinal members 49, the cylinders being bolted to steel plates connecting the vertical stanchions. Tension rods 51 are used between the frame members. Liquid fuel supplying.-In the Diesel engine shown in Figs. 5 and 6 two fuel pumps 37 and a lubricating oil pump 42 are driven by one cam on the crank shaft. The fuel is delivered to injection members 40 welded to the cylinders.
Patent GB-1534817-A (GB)
Title: Lead accumulator
IPC: H01M50/534
Filed: 1977-05-03
Abstract: 1534817 Connecting electrodes in lead-acid accumulators ACCUMULATORENFABRIKEN WILHELM HAGEN AG 3 May 1977 [14 May 1976] 18531/77 Heading H1B A lead accumulator has a member 3 which interconnects lugs 6 on the vertical edges of the electrodes. The member 3 is bent over and connected to a terminal 8, and may have slots to receive the lugs. The member may also engage further lugs on the upper horizontal edge of the plate.
Patent GB-861717-A (GB)
Title: Improved radiation detector
IPC: G08B17/12
Filed: 1957-06-12
Abstract: 861,717. Pulse discriminating circuits. MINNEAPOLIS-HONEYWELL REGULATOR CO. June 12, 1957 [June 21, 1956], No. 18543/57. Class 40(6) [Also in Group XL(b)] Apparatus, such as a fire or flame detector, for detecting ionizing radiations in the presence of "noise", comprises a Geiger-Muller tube type of sensor arranged in a circuit so as to produce a pulsating signal when exposed to ionizing radiation characteristic of a given condition and connected by two signal paths, one including an integrating network that integrates or delays the signal pulses relatively to the pulses in the other signal path, to an amplifying circuit arranged to respond only when the signals are received simultaneously through the two paths. In a fire detector, a non-self-quench Geiger-Muller tube 10 is connected in a circuit, including a thyratron valve 15, so arranged that the background count of the tube 10 produces only random pulses in the load resistor 32 of the thyratron, whereas radiation due to a fire to which the tube 10 is exposed causes a pulsating signal across the resistor 32. The signal developed across the resistor 32 is applied through a resistor 35 to one control grid 36 of a "gated beam" type valve 16 and also through a delay network 37, 48 to the other control grid 38 of the valve 16. When a pulsating signal, due to a fire, appears across the resistor 32 a signal reaches both grids 36, 38 simultaneously causing the valve 16 to conduct which biases triode 17 to cut-off causing a relay 56 to drop out to operate a fire indicator. Random pulses across the resistor 32 do not operate both grids 36, 38 simultaneously, so that the apparatus discriminates against the background radiation. The apparatus is arranged to "fail safe": In a flame detector, Fig. 2 (not shown), the Geiger- Muller tube and the thyratron valve and circuit are mounted as a unit having a relatively low output impedance so that it may be located at a substantial distance from a separate main amplifying unit.
Patent GB-184657-A (GB)
Title: Spraying device
IPC: A01G25/14
Filed: 1921-07-08
Abstract: 184,657. Joseph, R. July 8, 1921. Air-pressure sprayers.-An apparatus for spraying disinfectants &c. consists of a receptacle a with a spout c and a detachable tube i with mouthpiece j. The mouthpiece may be shaped so that it can be used as a funnel. A thumb-ring b may be provided and the top may have a partial cover h.
Patent GB-150879-A (GB)
Title: Improvements in and relating to thermostatic valve units
IPC: F01P7/16
Filed: 1919-07-28
Abstract: 150,879. British Thomson-Houston Co., (General Electric Co.). July 28, 1919. Thermostats.-The flow of water from the cylinder jacket to the radiator of an internalcombustion engine is controlled by a thermostatic valve comprising a disk 9 mounted loosely on a spindle 14 and connected to it by a coiled strip of metal 10. The valve is contained in a short length of pipe 8 within the flexible connexion.
Patent GB-169958-A (GB)
Title: Improvements in or relating to cigarette making apparatus
IPC: A24C5/42
Filed: 1921-07-11
Abstract: 169,958. Dugardin, L., (Assignee of Schoedelin, M. J. G.). Oct. 2, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Cigarette-making appliances. - Tobacco is placed in the space between ha'f moulds 6, 10, is cut off and compressed when the lid 2 of the tobacco box 1 is closed, and the charge is forced into a paper tube on the mouth-piece 8 by a plunger and semicircular spoon operated by a handle 11 working in a slot in the end of the box lid. The mould section 10 is attached to a slide 4 connected by parallel links 15 to. the bottom of the box and formed with a cutting-edge. The mould section 6 is formed with a serrated cutting edge. The paper tube is clamped on the mouthpiece by a curved bearing piece 28. The handle is caused to engage in slots in a bearing sleeve by a coiled spring. The bottom of the box may be made of leather.
Patent GB-407015-A (GB)
Title: An improved arrangement of voltage regulators for alternating current machines
IPC: H02P9/24
Filed: 1932-07-02
Abstract: 407,015. Automatic regulation. ALLMANNA SVENSKA ELEKTRISKA AKTIBOLAGET, Võsteras, Sweden. July 2, 1932, No. 18766. Convention date, July 4, 1931. [Class 38 (iv).] The voltage of an alternating- current system is regulated approximately in dependence on the time integral of the excess of the reactive power supplied by the system above a fixed quantity or above a linear function of the active power, in the latter case a sufficiently close approximation within limits fixed by the power of the prime mover driving the generator may be afforded by integrating the excess of current above such a limit. Fig. 1 shows an arrangement adapted for the former method. A resistance 3 in the exciting-circuit of the exciter 2 of the machine 1 to be regulated is periodically short-circuited by a regulator 4 of known type connected through a variable resistance 6 to a voltage transformer 7 connected between the terminals of the machine 1. The transformer 7 also excites an electromagnet 10 provided with a shaded pole so that it produces a fixed torque on an induction disc 9, but cannot turn it because of a stop. A second magnet 11 excited from a current transformer 12 in the circuit of the machine 1 also operates on the disc 9 and the arrangement is such that the torque on the disc 9 produced by the interactions of the magnets 10 and 11 is opposite to the torque produced by the magnet 10 and its shaded pole and is proportioned to the reactive power delivered by the machine 1. The angle turned through by the disc 9 is therefore proportional to the time integral of the excess of the reactive power above a fixed value and by means of a worm 8 a part of the resistance 6 proportional to this angle is cut out. For controlling the voltage in dependence on the excess of the reactive power over a linear function of the active power the disc 9 is operated by three magnets 13, 14, 15, Fig. 2. The magnet 15, which may be replaced by a spring &c. is provided with a shaded pole and is excited from the voltage transformer 7 through an adjustable resistance 17. The magnets 13 and 14 are so placed as to co-operate in producing a torque on the disc but to be practically unaffected by the magnet 15. The magnet 13 is excited from the voltage transformer 7 and the magnet 14 from the current transformer 12 through an impedance 16. Fig. 3 shows a device for integrating the excess of the current above a given value, as previously explained. The disc 9 is operated by magnets 18, 19 arranged so as not to interfere with each other and each provided with a shaded pole. The magnet 18 is excited by the voltage transformer 7 and the magnet 19 by the current transformer 12. In a modification of this form the resistance 6 is replaced by a tap regulator for the coil 18 which also serves as an autotransformer to feed the regulator 4.
Patent GB-297904-A (GB)
Title: Improvements relating to electrical accumulators
IPC: H01M50/147
Filed: 1927-07-15
Abstract: 297,904. Haddon, W., and Fullilove, J. A. July 15, 1927. Cells.- A cast metal lid 2 of a storage battery is provided with insulating bushes 1 for the electrode lugs, the bushes being secured in the lid by casting the latter round the bushes in a mould. Soft rubber washers 4 may be inserted in the bushes to make tight joints with the lugs,
Patent GB-756802-A (GB)
Title: Method of erection of a supporting structure
IPC: E01D15/12
Filed: 1954-06-28
Abstract: 756,802. Bridges; girders; roofs; scaffolding. GOLLNOW, J. D. June 28, 1954 [June 27, 1953], No. 18930/54. Classes 20(1), 20(2) and 20(4). A girder structure which may form part of a scaffolding, bridge or roof comprises rigid uprights 4 depending from a tensioned cable 1 and joined to a tensioned cable 2, with diagonal cables 3. The cables are of steel wire and the structure, when used as part of a bridge, is assembled on one side of the bridge span in a slack condition by means of an auxiliary cable 11 extending between posts 5. The uprights are supported on the cable 11 by pulleys 13 secured to the uprights by brackets, and when all of them have been so supported the assembly is pulled by a cable 15 secured to the top of the end upright across the bridge span. When the structure is thus extended, the cable 15 and pulleys 13 are removed. In a further embodiment the structure is loosely assembled between a bridge post and an auxiliary post and is then pulled taut across the bridge span. If the bridge banks are steep the posts 5 may be dispensed with. After the erection of two or more such structures the remaining parts of the bridge such as the road deck, additional ties &c., may be erected.