baber/WOPTO huggingface dataset:
Patent GB-719013-A (GB)
Title: Improvements in electrodes for electric accumulators
IPC: H01M4/80
Filed: 1952-12-10
Abstract: 719,013. Batteries. BADISCHE ANILIN- & SODA-FABRIK.. Dec. 10, 1952, [Dec, 14, 1951.] No 31254/52. Class 53. Accumulator electrodes consist of porous bodies of non-metallic substances, for example carbon, ceramics, glass, plastics, the pores of which are lined with electrochemically resistant metals such as nickel and copper. Active materials such as the hydroxides of nickel and cadmium are deposited in the pores after these have been coated with the metal.. The metal may be deposited on the walls of the pores electrolytically or by chemical deposition and reduction or by thermal decomposition of metal chlorides, carbonyls, or other compounds. In one example the porous body is impregnated with copper nitrate and then treated with hydrogen at a high temperature. Alternatively the nitrate-impregnated body may first be treated with an alkali before the reducing process. In another example a current of carbon monoxide containing nickel carbonyl is drawn through a plate or porous glass heated to 300 ‹C. whereby the pores become coated with nickel. The glass is then impregnated with a solution of nickel nitrate which is converted into nickel hydroxide electrolytically. In a further example a porous magnesite plate is impregnated with nickel nitrate, then dipped in caustic potash and finally treated with hydrogen at 900 ‹C. to form a nickel coating on the pore walls of the plate. A negative electrode is formed by filling the pores with cadmium hydroxide.
Patent GB-970318-A (GB)
Title: Improvements in a.c. printed circuit windings for electrical rotating machines
IPC: H02K3/26
Filed: 1961-08-30
Abstract: 970,318. Dynamo-electric machines having planar air-gaps and printed windings. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 30, 1961 [Sept. 8, 1960], No. 31260/61. Heading H2A. In an A.C. printed circuit winding for an electrical rotating machine of the flat annular air-gap type, and comprising an insulating annular carrier on each face of which are a plurality of half-turn conductors each having a middle portion 117 extended at both ends by curved portions 118, 119 up to near the edges of the carrier registering half-turn conductor ends on opposite faces of the carrier having face-to-face connections not shown to obtain the winding pattern, the inner curved portions 118 lie side-by-side and cover the complete surface of their radial zone of the carrier, whereas the middle and outer curved portions 117, 119 are formed into an even number of groups I ... IV, the conductors of each group lying side-by-side and an uncovered strip or zone 100 being left between each group. The number of groups equals either the number of phases or a multiple thereof, and the winding shown is lap-wound for a two-phase, two-pole machine. The conductors end in supply terminals 115, 116. Specifications 931,654 and 948,923 are referred to.
Patent GB-1314384-A (GB)
Title: Apparatus for cleaning strip material
IPC: G03D15/00
Filed: 1970-06-29
Abstract: 1314384 Cleaning strip material ultrasonically LIBERTY INDUSTRIES Inc and CLEAN AIR Inc 29 June 1970 [3 July 1969] 31301/70 Headings G2A and G2C An apparatus for cleaning strip comprises means for passing the strip through an ultrasonically agitated solvent bath, subsequently drying the strip by hot air, and means for recirculating the solvent after removing decontaminants. The strip material may be photographic film, or magnetic or video tape, and passes from the supply reel 24 via a guide roller 34, further guide rollers 46, 48 immersed in a bath 40 of solvent liquid, between nozzles 50, 52 which spray clean solvent on the strip, into a drying chamber 56 where it passes between rollers 58, 60 which brush some of the solvent off the strip, and then over rollers 62, 64, 66, 68 where it is subjected to streams 162, 156 of heated air. Finally the strip is taken up on reel 30. The ultrasonic cleaning unit 38 is shown more clearly in Fig.4. It comprises a lower chamber 36 containing the solvent liquid 40 and an upper chamber 54 containing cooling coils 82, 84. These are supplied with an appropriate refrigerant so as to condense the evaporated solvent and separate it from the drying air. The surface layer of the solvent, where contaminant material collects, spills over into tank 104, where the solvent is boiled up again for recirculation through conduit 116, while the contaminants can be periodically removed through a door 112. The drying air is forced from a blower 148 through a duct up the side of the apparatus into a space 152 at the top. Here it passes through filters 154 and is divided into two streams by perforated plates 158, 159. One stream 162 passes over a heater 166 down to the drying chamber 56. The other stream 156 passes down over the reels 30, 24 to ensure a decontaminated atmosphere. The ultrasonic transducers 42, 44 are energised from a generator 126. The transport rollers over which the strip passes as it leaves reel 24 can be adjusted to various widths to accommodate film strip of different widths.
Patent GB-877961-A (GB)
Title: Polymers and telomers of tetrafluoroethylene
Inventor: ROBERTS HUGH LEITHEAD
IPC: C07C381/00
Filed: 1958-10-01
Abstract: Tetrafluoroethylene and sulphur chloride pentafluoride are telomerized by subjecting a mixture thereof to ultra-violet radiation.  The products have the formula SF5(CF2-CF2)nCl where n is an integer. Their properties depend on the proportion of SF5Cl in the initial mixture.  When this is (a) below 0,1% (molar) they are solids substantially identical with conventional polytetrafluoroethylene; (b) 0,1%-3% they are solids having softening points above 300 DEG C.; (c) 3%-30% they are lower melting point solids; and (d) 30%-50% they are mainly liquid. Ultraviolet radiation of wavelength 3,000  is preferred.  The reaction should be effected in the absence of water and optionally in an inert organic medium.  The pressure may be atmospheric or as elevated as the apparatus, which must be of quartz or other ultra-violet-light-transparent material, permits.  The temperature may range from below room temperature to 250 DEG C.  In examples, a silica reaction vessel is pressurized with the reaction mixture to 10 amospheres and irradiated with a low pressure mercury vapour lamp and may be repressurized several times.  In the examples, the molar per cent of SF5Cl in the reaction mixtures are (1) 0,001%; (2) 0,01%; (3) 0,1%; (4) 1,0%; (5) 3,0%; (6) 20%; (7) 30% and (8) 50%.  According to the Provisional Specification the products contain repeating groups (-CF2-SF4-CF2-).  Specification 877,458 is referred to.ALSO:Tetrafluoroethylene and sulphur chloride pentafluoride are telomerised by subjecting a mixture thereof to ultra-violet radiation.  The products have the formula SF5(CF2-CF2)nCl where n is an integer. Their properties depend on the proportion of SF5Cl in the initial mixture.  When this is (a) below 0.1% (molar) they are solids substantially identical with conventional polytetrafluoroethylene; (b) 0.1 to 3% they are solids having softening points above 300 DEG C.; (c) 3 to 30% they are lower melting point solids; and (d) 30 to 50% they are mainly liquid. Ultra-violet radiation of wavelength 3000 is preferred.  The reaction should be effected in the absence of water and optionally in an inert organic medium.  The pressure may be atmospheric or as elevated as the apparatus, which must be of quartz or other U-V light-transparent material, permits.  The temperature may range from below room temperature to 250 DEG C.  In examples a silica reaction vessel is pressurized with the reaction mixture to 10 atmospheres and irradiated with a low pressure mercury vapour lamp and may be repressurised several times.  In the examples the molar per cent of SF5Cl in the reaction mixtures are (1) 0.001%; (2) 0.01%; (3) 0.1%; (4) 1.0%; (5) 3.0%; (6) 20%; (7) 30% and (8) 50%. According to the Provisional Specification the products contain repeating groups (-CF2-SF4-CF2-).  Specification 877,458 is referred to.
Patent GB-897968-A (GB)
Title: Improvements in or relating to doors
Inventor: STOTT JOHN
IPC: E06B3/80
Filed: 1959-09-15
Abstract: 897,968. Flexible doors. MANDOR ENGINEERING Ltd. Sept. 14, 1960 [Sept. 15, 1959], No. 31335/59. Class 20(3) The frame 11 of a flexible door panel 12 is constituted by two members 13a, 13b, preferably of stepped section so that when placed face to face they provide a channel to receive the edge portion of the door panel 12, which is secured in the channel as by glueing and screws. Each member 13a, 13b may be of cantilever form made in one piece or in two pieces 13, 14 secured together by glueing, screws and pegs. The frame may consist of wood, e.g. mahogany or of rigid plastic and may be provided with cover strips 16 to hide the heads of the screws. The panel is of rubber with a resin impregnated fibre core.
Patent GB-634903-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G23/14
Filed: 1947-11-26
Abstract: 634,903. Rope railways. KING, Ltd., G. W., and BURROWS, A. T. C. Nov. 26, 1947, No. 31346. [Class 104 (ii)] In a conveyer system of the kind wherein loadcarrying trolleys are propelled along a predetermined path, generally at floor level, by the action of upstanding pusher dogs or abutments carried by an endless driving chain, the drive to the driving chain 10 is effected by a caterpillar mechanism comprising an endless chain 14 with a number of spaced lateral abutments. 16 which engage the links of the chain 10, and some or all of the links 17 of the chain 14 are provided at one side with a plate 2t which co-operates with track member 11 at the other side of the track to support the skid plates 13 of the pusher dogs 12 carried by the driving chain 10, the near side track member having a section removed to allow the abutments 16 to engage the driving chain. To prevent undue lateral displacement of the chain 10 by the caterpillar drive, the track member 11 at the side of the chain remote from the caterpillar drive is provided with a series of thrust rollers 25. The separation of the two chains 10, 14 is assisted by stripper plates 24.
Patent GB-619904-A (GB)
Title: Engine-driven electric generating plant
IPC: H02P9/04
Filed: 1946-10-22
Abstract: 619,904. Transmitting mechanical power; automatic control of speed. ENGLISH ELECTRIC CO., Ltd., SPAINK, J. H. ABBINK-, and MARDIS, P. L. Oct. 22, 1946, No. 31369. [Class 38 (iv)] [Also in Group XXXVII] To maintain a constant prime-mover speed in a generating plant supplying a variable load. such as the traction motors of a diesel-electric locomotive, a hydraulically-operated servomechanism controlled by an engine-driven governor varies the fuel supply to the engine, in a corrective sense, in accordance with deviation of engine-speed from a prescribed value until the position of maximum fuel injection is reached, further movement of the mechanism with deviation of speed then being effective to control a reversible electric or fluid motor operating a rheostat in the generator field circuit, thereby varying the generator excitation in a corrective sense. In the system shown, the motors 2, 3 of a diesel-electric locomotive are supplied by a generator 1 having field windings 1a, 1b supplied from a separate source 4, the field 1b being in series with a regulator 6 operated by ari electric motor 7 having fields 7a 7b giving opposite directions of rotation, and controlled over relays 8, 8a and 9, 9a by cam-actuated switches 10, 12. Limit switches 11, 13 interrupt the relay circuits and so de-energize motor 7 when the regulator 6 is at either end of its travel. The cam switches are operated through linkwork 19-21 by a fluid servomotor 24-26 controlled by a valve 39 which is worked by the governor 35-38 of the prime-mover. The servomotor also controls the fuel valve 23 of the engine through a connection 22, which, after a movement corresponding to the first 24 degrees of rotation of the switch cams, yields and prevents further increase of fuel injection rate. During the first 22 degrees of rotation of the cam switch 10 is closed so that motor 7 moves the regulator 6 to the position of maximum generator voltage. Rotation to 26 degrees closes switch 12 and the motor reverses to reduce the generator excitation to relieve the load on the engine. Below 19 degrees and above 29 degrees further cam switches 16, 17 operate a relay 15, 15a to increase the speed of response of motor 7 by disconnecting an armature diverter resistor 14. The operation of the fluid servo-system is as follows: under equilibrium conditions the valve 39 closes a port 41 leading to the cylinder of the servomotor, but if the engine speed falls or rises the valve is moved by the governor balls and places the cylinder in communication with either a fluid-pressure supply pipe 40, e.g. connected to the lubricating system of the engine, or a sump. The speed then stabilizes at a slightly different value determined by the linkage 27, 28, 30-34. The normal speed is adjusted by linkage 30-33 which can vary the governor loading. In a modified arrangement the electric motor 7 is replaced by a hydraulically operated reversible motor controlled by electromagnetically actuated valves which replace the relay contacts 8, 9.
Patent GB-750783-A (GB)
Title: Shovel loader with an oscillating conveyor
IPC: B65G65/00
Filed: 1954-11-01
Abstract: 750,783. Jigging conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. Nov. 1, 1954 [Nov. 13, 1953], No. 31541/54. Class 78(1). The shovel a of a loader for use in mines is secured to the ends of two parallel bars b which form the lower part of the framework of the machine and on which is mounted an oscillation generator d. This generator comprises a cylinder and a stepped piston which is reciprocated by compressed air. A jigging conveyer l is connected by hinged members m to the upper part of the structure and is supported by coil springs n. An extension o of the conveyer is rotatable in a horizontal plane. The machine is pushed into the material to be loaded by the thrust of the piston of a compressed air cylinder q on a rail clamp r.
Patent GB-399332-A (GB)
Title: Safety devices for aeroplanes
IPC: B64D25/12
Filed: 1932-11-09
Abstract: 399,332. Safety devices for air and water craft. VOICIECHAUSKIS, B., Apskrities Mokesciu Inspekcija, Siauliai, Lithuania. Nov. 9, 1932, Nos. 31700 and 33809. [Class 4.] A safety device for air and water craft comprises a separate box for each of the passengers of the craft in which the passenger first attaches himself to the back wall or floor whereupon the box is sealed and may be ejected or dropped overboard. As applied to an aeroplane, Fig. 1, a box 1 is mounted on rails 2 and carries on rails secured to its floor a collapsable seat la normally occupied by the passenger. The box is closed by a cover 5 shown in Fig. 2 which also shows a keel 3a. Box 1 is provided with a buffer 10 and is held by a detent 12. The ejecting means comprises a fluid-pressure cylinder 8 and piston 9 engaging the buffer 10. In emergency the occupant or a member of the crew operates spring means to collapse the seat 1a whereupon further spring means are released to close the cover 5. Ejection of the box may be effected automatically either by the use of a ground contacting device such as described in Specification 326,407, [Class 4, Aeronautics], or, when over the sea, by causing the altimeter needle as it approaches the zero mark to bridge contacts in an electric circuit causing the admission of pressure fluid to the cylinder 8, whereupon the piston 9 is forced out freeing detent 12 and ejecting the box through a trap-door 4 clear of the craft. The box may be padded and be provided with a window, a hatch to admit fresh air, a safety belt, and devices to permit of it being manoeuvred on water. Buffer 10 may be detached and remain suspended under the box to act as an anchor in water. Each box may have towing rings and one may be provided with propelling means. To prevent ejection of the box with cover 5 open, the latter is arranged to bridge the ejecting circuit only when in the closed position. As applied to aircraft the boxes may be arranged in rows in fuselage and wings. In the case of ships the safety boxes may replace lifeboats and be slung on davits or be thrown into the sea by the crew. The earlier Provisional Specification refers to Specification 386,204 and describes safety boxes for passengers having struts covered with metal or boards of wood covered on both sides with metal.
Patent GB-601797-A (GB)
Title: Improvements in and relating to rubber heels
IPC: A43B21/06
Filed: 1945-11-23
Abstract: 601,797. Rubber heels. VEEN, T. VAN DER. Nov. 23, 1945, No. 31702. Convention date, Nov. 27, 1940. [Classes 17(ii) and 17(iii)] A rubber heel intended to prevent throwing of splashes on garments during walking is attached to a heel 1 and has a filling 8 of sponge rubber which projects at 7 forwardly to the breast face of the heel and three portions 6, one of which is at the rear end, projecting through to the tread face.
Patent GB-1430890-A (GB)
Title: Press having vertical adjustment apparatus
IPC: B30B15/00
Filed: 1974-07-18
Abstract: 1430890 Adjusting tool of press ram L SCHULER GmbH 18 July 1974 [28 July 1973] 31886/74 Heading H2J Apparatus for adjusting the vertical position of a tool of the ram of a press comprises an electric motor in series with a supply switch which is actuated manually and which opens automatically in response to the speed of the motor dropping owing to engagement of the upper and lower tools of the press. As shown, a motor 2 drives the tool 3 into position and a tachogenerator 4 supplies a signal to a reversing stage 5 and an amplifier 6 and thence to a coil 7 of an electromagnetically operated switch 1, the core 8 of which operates the switch contacts. Operating knob 9 is used to start the adjustment and when the tachogenerator output falls significantly, the reversing stage 5 passes a current to coil 7 to open switch 1.
Patent GB-211924-A (GB)
Title: Improvements relating to the heating and supply of feed water in steam power plants
IPC: B01D1/00
Filed: 1922-11-22
Abstract: 211,924. Fothergill, H. Nov. 22, 1922. Addition to 195,783. Water, distilling.-In a boiler feed system as described in the parent Specification the steam space of the evaporator f and the de-aerating chamber m are directly connected by pipes u, i to the heater d through which the condensate from the condenser a passes. The heater d is maintained under vacuum by an ejector h which discharges into a secondary heater d<1> supplied with steam through a pipe x from a convenient source such as the exhaust from auxiliaries. The drainage water from the heaters is discharged through a pipe p<1> into the deaerating chamber which may have a float w operating the valve y.
Patent GB-140369-A (GB)
Title: Improvements in shock absorber devices for vehicle couplings
IPC: B60D1/34
Filed: 1919-12-22
Abstract: 140,369. Saunier, C. L. B. de. March 14, 1919, [Convention date]. Apparatus fitted to vehicle couplings.-A spring coupling between a tractor and a two-wheeled trailer or other vehicles is provided with means for cushioning horizontal stresses and angular movements of the trailing vehicle about its axle. By providing a scale, the amount of overloading of one end of the trailer can be determined. The trailer is provided with a coupling- member 1 fitted with a drum 3 having a slot through which projects a second coupling-member 2 connected with the tractor. The member 2 is provided with stubs 6 fitted with rollers 8 riding on inclined guides 9 on the drum 3, and has an angle-piece 5 connected by a spring 4 with the drum. Movement of the trailer towards or away from the tractor, or tilting of the trailer is cushioned by the spring 4. The spring 4 may be replaced by a group of coil or plate springs, or rubber or pneumatic springs may be used. The drum may be graduated to indicate the inclination of the coupling-members with respect to each other, this inclination being a measure of the distribution of the load on the trailer,
Patent GB-1014643-A (GB)
Title: Devices for feeding paper, film or the like
IPC: G03B21/10
Filed: 1962-04-27
Abstract: 1,014,643. Control of web-feeding mechanism. MINNESOTA MINING & MANUFACTURING CO. April 27, 1962 [April 27, 1961], No. 32132/65. Divided out of 1,014,642. Heading B6B. The variable feed device shown is suitable for use in the copying machine of the parent Specification. When motor 77 is energized, it drives shaft 83, and also, through a unidirectional clutch 85, shaft 83<SP>1</SP>. Shaft 83<SP>1</SP> carries a gear 86 which engages with means causing the film or paper feed to operate. A gear 84 on shaft 83 engages a measuring gear 87 having a stud 88 at its peripheral edge. Thus, as gear 87 rotates, the stud 88 eventually strikes against a U-shaped spring 96, pushing it away from the face of gear 87. This causes it to abut against and push a pin 94, whose other end actuates a switch 95 to shut off the motor. Thus the film has been progressed by a fixed predetermined amount, which can be pre-set to any desired value by altering the position of the spring 96. After the motor has been shut off gear 87 is free to turn back under spring loading to its original position ready for a further operation.
Patent GB-1136849-A (GB)
Title: Improvements in or relating to band clutch constructions
IPC: F16D41/20
Filed: 1967-07-12
Abstract: 1,136,849. One-way clutches. NATIONALSTANDARD CO., and J. M. DODWELL. 12 July, 1967 [14 July, 1966], No. 32162/67. Heading F2C. A one-way clutch has a number of interfitting and overlapping spirally arranged metal bands 10 tapered along their length to frictionally engage the sidewalls of a V-groove in a driven shaft 18, each band 10 having a bent-over key portion 12 co-operating with a corresponding keyway pocket 27 in a surrounding driving shaft 17, the clutch assembly being retained within a housing 26. Each band approximates to but is less than 360 degrees in circumferential extent and is tapered in width from one end to the other, the key portion 12 being formed at the wider end.
Patent GB-323336-A (GB)
Abstract: 323,336. Gledhill, A. H. Dec. 4, 1928. Factory and like time reconders, card-type; driving typewheels from clock. - In apparatus wherein punctual and late arrivals are recorded in distinct colours on a card or sheet means are provided for recording the actual number of minutes late of the late arrivals. As shown in Figs. 1, 2, and 3 a type wheel A loosely mounted on a clock driven arbor B is maintained in a normal position with a pin a thereon against a hooked stop lever a<2> by means of a spring. Slidably attached to the wheel A is a clutch member D with a projecting pin d adapted to be moved into and out of the path of a pin or pins b of a wheel b<1> secured to the arbor B. Movement of the clutch member is effected by an arm d<2> on a shaft E which can be rocked at the desired instants by an arm e on the shaft cooperating with cams e<2> on a disc e<3> secured to a clock wheel that makes one revolution in twenty-four hours. The wheel A is provided with numerals 1 to 58 to print the number of minutes late up to one hour, and a blank space a<4> is provided to prevent an impression being taken from the wheel in its normal position. A two colour ink-ribbon change mechanism as described in Specification 189,928 may be employed to distinguish the late arrivals and the day letter G for subsequent arrivals may also be printed in the same colour.
Patent GB-1109498-A (GB)
Title: Improvements in induction melting furnaces
IPC: F27B3/08
Filed: 1965-07-29
Abstract: 1,109,498. Electric induction furnaces. ALLMNNA SVENSKA ELEKTRISKA A.B. 29 July, 1965 [30 July, 1964], No. 32406/65. Heading H5H. An induction melting furnace of the submerged resistor type fed by a multiphase network comprises a hearth 11 from which extend at least two melting loops 12, 13, positioned side by side, having a common branch 14, the cross-sectional areas of the other branches of the loops being different. The loops enclose primary coils 15, 16 having iron cores 17, 18 and are fed with two phase current from a Scott or V-connected transformer 19 having a 3-phase input. The furnace may melt steel and operate under vacuum.