baber/WOPTO huggingface dataset:
Patent GB-1042463-A (GB)
Title: Improvements in stimulated emitters of light
IPC: H01S3/107
Filed: 1963-06-25
Abstract: 1,042,463. Lasers; light modulation. C.S.F.- COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 25, 1963 [June 29, 1962], No. 25317/63. Headings H3B and H4F. A laser emits a scanning beam which is deflected by a variable reflecting system adjacent one face of the active medium 1, Fig. 1, the reflecting system comprising a Kerr cell 3 having a non-uniform electric field, a polarizer 6 and a reflecting surface 7. The active medium is pumped by a flash tube 8 and consists of a ruby the transmission face of which is a partial reflector 2. The non-uniform electric field is obtained in the Kerr cell by a plurality of longitudinal grid electrodes g, Fig. 2, having a non-uniform potential gradient, or by the use either of concentric electrodes A, B, Fig. 4, or the equivalent 101, 102 in part-cylindrical form, Fig. 6. These electrodes are connected to a source 50 or 103 of varying potential which permits light transmission to spread progressively across the face of the cell as the potential is reduced. Whenever the light permitted to pass through a region of the Kerr cell exceeds a critical value, stimulated emission takes place in that longitudinal part of the laser active medium receiving the reflected light as indicated by band Zi in Fig. 6. The position of this emission band determines the direction P of laser light transmitted by a lens 51. By using two part-cylindrical Kerr cells arranged orthogonally with respective electrodes 101, 102 and 201, 202, Figs. 8 and 9, connected to separate sources 51, 52 of varying voltage, two intersecting bands Zi, Zj are obtained which effectively permit stimulation to occur only at their intersection. This arrangement enables scanning movements of the emitted light beam to take place by appropriate control of the two voltage sources, the orthogonally-positioned Kerr cells 100, 200 being arranged at opposite ends of the active medium with their axes of symmetry at an angle of 45 degrees to the polarization plane of the emitted light. Quarter wave plates 301, 302 are provided to reverse the controlling action of the variable voltage sources 51 and 52.
Patent GB-154406-A (GB)
Title: Improvements in or relating to games-boxes
IPC: A63F3/02
Filed: 1919-10-15
Abstract: 154,406. Bliss, L. H. Oct. 15, 1919. Board games.-In a games-box which also constitutes a games board and wherein the top and bottom of the box are linked together by a strip D so that when the box is opened the board marked on the interior is presented in one plane, the sides B<2>, C<2> of the box are cut away near the. strip D for convenience in use.
Patent GB-1305979-A (GB)
IPC: B01D69/10
Filed: 1970-05-26
Abstract: 1305979 Laminates RHONE-POULENC SA 26 May 1970 [27 May 1969] 25326/70 Heading B5N A reinforced sheet substantially free from micro holes having a total thickness of 120- 350 Á consists of an organopolysiloxane elastomer film supported by a mesh material which is a woven, knitted or netted fabric, partially penetrating one of the faces of the film, the film being produced from a composition vulcanizable at ambient temperature under the influence of liquid or vaporous water and comprising an α,#-dihydroxy diorgano polysiloxane oil and, as cross-linking agent, an organo silane, polysilane or polysiloxane containing more than two hydrolysable groups per molecule. The reinforced sheet may be produced by forming a film of the vulcanizable composition on a non- adherent temporary support, e.g. a film of polytetrafluoroethylene or polyethylene or paraffin-coated paper which may be slightly roughened, exposing this film to liquid or vaporous water until the composition is partially vulcanized but the surface still tacky, applying the mesh material to the film under a pressure of 0À05-0À3 bar and exposing the resulting reinforced sheet to liquid or vaporous water until vulcanization is complete. The reinforced sheet may subsequently be separated from the temporary support. A film of elastomer representing 30-80% of the thickness of the organopoly-siloxane part of the final sheet may be formed on the temporary support, exposed to moisture to effect at least partial vulcanization and one or more further layers of the vulcanizable composition applied and partially vulcanized before applying the mesh material. The mesh material may be made from cotton, polyhexamethylene adipamide polycaprolactam, polyethylene terephthalate or polyacrylonitrile fibres. The hydrolysable silane cross-linking agent may be an organotrialkoxysilane, organotriacyloxysilane, organotriamino silane, organotriaminoxysilane or organotrisiminoxy-silane. The vulcanizable composition may also contain not more than 40% by weight of a filler having a maximum particle diameter of 0À1 Á, e.g. silica which may have been treated with an organopolysiloxane, a pigment and a diorganopolysiloxane of which the chain ends are blocked by trimethyl silyl groups which acts as a plasticizer. The reinforced sheets may be used in gas exchangers, e.g. in artificial lungs, or to cover burns.
Patent GB-1151412-A (GB)
Title: Improvements in or relating to Overhead Electric Transmission Systems
Inventor: DEY PHANI BHUSAN
IPC: H02G7/22
Filed: 1966-06-07
Abstract: 1,151,412. Transmission systems; protective arrangements. BRITISH INSULATED CALLENDER'S CABLES Ltd. 6 Sept., 1967 [7 June, 1966], No. 25351/66. Headings H2C and H2H. In an overhead transmission system having one or more earth wires 5 (25) (Fig. 5, not shown) strung above the line conductors 4, the uppermost part 6 of each or some of the support structures is made of insulating material and at the support structure the earth wire is connected to earth by a conductor 7 through a resistor 8 having a resistance equal (or approx. equal) to the characteristic impedance of the conductor, which resistor is wholly or partly embedded in the ground so that a lightning current wave will not flash across it to earth. There may be vertical structure extensions 9 to maintain the characteristic impedance of the conductor which may be secured by insulating braces 10, (30) (Fig. 5, not shown), which, together with parts 6, may be of resin bonded glass fibre. The earth conductor may be adjacent to, but outside the support structure (Fig. 3, not shown) and lie in the vertical plane of the earth wire. The support may be an H-pole structure (Fig. 5, not shown) where the conductor is in a vertical plane between the two earth wires. The conductor may be circular or annular, solid or stranded, or folded from a strip to be annular and have an insulating covering. It may be the central conductor of a coaxial cable, the outer conductor being connected to the support structure or earthed. The resistor may be a rod of SiC and may have a resistance of 50#.
Patent GB-864658-A (GB)
Title: N-substituted-4-phenyl piperidines
Filed: 1958-08-07
Abstract: The invention comprises compounds of the general formula: <FORM:0864658/IV (b)/1> and acid addition salts thereof, wherein X represents a chlorine or bromine atom or an alkoxy, alkenyloxy or alkyl-mercapto group containing not more than three carbon atoms, and R represents a hydroxyalkyl group containing from two to six carbon atoms or an ester thereof with an aliphatic acid, containing up to four acyl carbon atoms, carbamic acid or an N-alkyl or N,N-dialkyl-carbamic acid in which the N-alkyl group or groups contain from one to four carbon atoms, and the preparation thereof by treating a compound of the general formula:  <FORM:0864658/IV (b)/2> with (a) a reactive derivative of a hydroxyalkane such as an omega alkanol halide, sulphate or sulphonate or a carboxylic acid ester thereof and, if desired in the latter case, hydrolysing or alcoholysing the product, or with (b) an omega-halo-aliphatic carboxylic acid ester, an omega-carboalkoxy-acyl halide or an alkyl ester of acrylic acid and reducing the product and, if desired, treating the 4-phenyl-1-(omega hydroxyalkane)-piperidine produced by any of these processes with an appropriate acylating agent and, if desired, converting the products of any of the above processes into their acid addition salts.  The compounds can also be prepared by reduction of compounds of the general formula III.  <FORM:0864658/IV (b)/3> The products have hypotensive and central nervous system depressant activity.  4-Phenyl-piperidines of the formula II are prepared by treatment of appropriate ortho substituted benzaldehydes with ethyl acetoacetate or ethyl cyano-acetate, cyclizing the resulting glutaric acids with ammonia and reducing the glutarimides produced.  4-(o-Ethoxy-phenyl)-piperidine is prepared by treating o-bromo-phenetole with lithium and then with N-benzyl-4-piperidone, dehydrating the resulting N-benzyl-4-(o-ethoxy-phenyl)-4-piperidol and reducing the product.
Patent GB-1306425-A (GB)
Title: Vehicle speed responsive electronic system
IPC: B60Q1/54
Filed: 1971-04-19
Abstract: 1306425 Vehicle speed responsive electrical system FORD MOTOR CO Ltd 19 April 1971 [4 May 1970] 25504/71 Heading G1N [Also in Division H3] An electronic system for actuating sequentially a plurality of warning lamps at predetermined values of speed comprises a battery 10, an alternator 24 driven by a vehicle wheel and from which the negative-going output voltage excursions turn off transistor 18 in a first circuit 90a whereby transistor 34 is enabled and charges capacitor 38 to a level proportional to the frequency of the alternator output and therefore to vehicle speed so that when the charge exceeds a predetermined value determined by resistor 40 then transistors 46, 62, 74 and 78 are enabled whereby a 50 m.p.h. speed warning light 84a is illuminated. A second and similar circuit 90b is actuated at 60 m.p.h. to light a warning lamp 84b when the diode 100 becomes forwardbiasedthereby clamping terminal 52 of circuit 90a to earth so disabling transistor 62 and deactuating warning light 84a. When vehicle speed reaches 70 m.p.h. circuit 90c actuates lamp 84c, diode 106 deactuates lamp 84b and diode 102 holds lamp 84a deactuated. At 80 m.p.h. light 84d is actuated while diodes 104, 108 and 110 hold lamps 84a, 84b, 84c deactuated. Reference diode 28 and series resistor 30 compensate for source voltage variations which would otherwise vary the switching levels.
Patent GB-358213-A (GB)
Title: Improvements relating to broadcast receiving apparatus
IPC: H03J1/20
Filed: 1930-08-27
Abstract: 358,213. Wireless receiving apparatus. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Kolster Radio Corporation ; 200, Mount Pleasant Avenue, Newark, New Jersey, U.S.A.) Aug. 27, 1930, No. 25572. [Class 40 (v).] The tuning-apparatus of a radio receiving-set is operated by a motor which is controlled either at the set itself or at one or more remote points. The setting of the tuning apparatus is indicated at each control point, and means such as coloured lamps are provided for indicating the particular point at which the control is effective. The control units are also provided with on and off switches, and with volume control devices. In the system shown in Figs. 2 and 4, on and off switches 9, 10 motor control buttons 11, 12, volume control 13, and indicating lamps 14, 15 are provided on the set, similar controls 89 .. 95 and a voltmeter 96 graduated in wave-lengths being provided on the remote control unit 85. To tune the receiver at the cabinet, " on " switch 9 is depressed thereby energizing relay 46 which looks up in a circuit including the " off " switches 10, 90, completes the primary circuit of the power transformer 31, and connects the motor control buttons 11, 12 to the windings 41, 42 of the eddvcurrent motor 40 so that on depressing button 11 or 12 the tuning means can be rotated in either direction. Red lamps 14, 91 in parallel are energized over contact 70 of relay 46 and a winding 106 of the power transformer, to indicate that the receiver is controlled from the cabinet. To tune from a remote point when the receiver is off, the " on " switch 39 is depressed, thereby energizing the self-locking relay 47 which changes the control to the remote point. If, however, the receiver is in use and the relay 46 energized, the "off" switch 90 is depressed first to open the locking- circuit of relay 46. Relay 47 connects the motor windings 41, 42 to the control buttons 93, 94 and completes at contact 74a circuit for the green lamp 15 to indicate that the receiver is under remote control. The green lamp 92 at the remote point is energized whether control is at that point or at the set. The indicating voltmeter 96 is connected to a potentiometer 43, 44 operated by the motor shaft and energized from winding 106 of the power transformer. Volume control is effected by a resistance 13 or 59 connected by the relay 46 or 47 in the plate circuit of the high-frequency stages 25, 26. In a modified system, Figs. 5 and 6 (not shown), having a number of control points, a single lamp at each control point indicates whether the set is energized or not, and a single relay controls the circuits of the motor and power transformer. The relay can be energized by the depression of the " on " switch at any control and its locking-circuit can be opened by the depression of any " off " switch. The volume control circuit includes resistance in series at all the control units.
Patent GB-462471-A (GB)
Title: Improvements in or relating to couplings for pipes and the like
IPC: H02G3/06
Filed: 1935-09-14
Abstract: 462,471. Pipe joints. LAUER, R. L. Sept. 14, 1935, No. 25583. [Class 99 (i)] In a spigot-and-socket joint in which a wire or key 9, Fig. 2, is inserted through an opening in the socket into aligned annular grooves in the spigot and socket, the wire has a tapered head 11 which is wedged in the grooves and opening. Two pipes may be joined by a sleeve 60, Fig. 11, and keys 61, 62, the bevelled pipe ends seating on a gasket 64. In a modification, the key 23, Fig. 4, engages a groove in the socket only and wedges a ring 17 between socket and spigot. The head of the key may have a projection 75, Fig. 12, which engages a hole in the spigot when the head is hammered over after wedging. In jointing a tube to a plate 25, Fig. 6, the tube is keyed to a slotted ferrule 27. In another method of jointing a tube to a plate, the key 9a, Fig. 7, has a wedge portion 11a engaged in an opening in the flanged ferrule 38 and an enlarged head 11b which binds against the plate 35.
Patent GB-172134-A (GB)
Title: Improvements in or relating to trim or stability indicators or recorders for ships and other purposes
IPC: B63B39/12
Filed: 1920-09-06
Abstract: 172,134. Roberts, R. C. Sept. 6, 1920. Clinometers.-Comprises improvements in trim indicators of the type described in Specification 21279/12, and consists of means for varying the tilting movement of the mirror and means for recording the movements of the mirror. The mirror H is secured to a frame c pivoted in a hinge-piece e which is also hinged to the main support A as shown. A support J<2> rests on thefree end D<1> of the rocking member D, and may be adjusted by a screw b to vary the tilting movement of the mirror. A pointer k attached to themirror records the tilting movements on the surface of a rotary drum l.
Patent GB-771377-A (GB)
Title: Electric tumbler switches
Inventor: BAIN ROBERT
IPC: H01H3/60
Filed: 1955-08-31
Abstract: 771,377. Snap action switches. ALLDAY & SON (1922), Ltd., H. Aug. 31,1955 [Sept. 6, 1954], No. 25752/54. Class 38(5) A snap action tumbler switch is provided with a toggle linkage to provide quiet operation. A dolly 3 and a movable contact 7 are connected by an over centre spring 8 to provide snap action. One arm 10 of a toggle linkage 10, 11 is pivotally connected to the movable contact 7, and the other arm 11 is pivotally, connected to the base, the arm 11 being provided with a projection 11a. On operation of the switch the projection 11a engages a spring blade 13 which absorbs some of the momentum of the contact member 7 and thereby provides quiet action. Also the dolly is provided with arcuate parts 3a which engage spring blades 14 which act as a cushion and reduce the click of the dolly.
Patent GB-799740-A (GB)
Title: Improvements in and relating to force feed lubricating systems
Inventor: HOBSON ERIC DOTT
IPC: F01M11/04
Filed: 1955-09-08
Abstract: 799,740. Regulating liquid levels. YARROW & CO., Ltd. Aug. 23, 1956 [Sept. 8, 1955], No. 25788/55. Class 123(1) [Also in Group XXXIV] A force feed lubricating system for a machinery installation comprising, for example, components a, b, c or a marine propulsion plant, includes a drain tank 1 maintained at substantially atmospheric pressure and a service tank 2 maintained at sub-atmospheric pressure, the drain tank being connected to oil outflow lines a<SP>1</SP>, b<SP>1</SP>, c' and the service tank being connected by line 3 to a pump for withdrawing it to the machinery components a, b, c. A conduit 9 has an opening at one end adjacent to the base of the tank 1 and at its other end has an outlet near to the normal level in the tank 2, the arrangement being such that the sub-atmospheric pressure in the service tank induces the flow of oil from the drain tank to the service tank so as to maintain a substantially constant and relatively low level in the drain tank. The sub-atmospheric pressure is obtained by means of a pipe 4 and a pump 5 which withdraws air from the tank 2 and delivers it through a pipe 6 to a vent pipe fitted to the component b. A change in the normal rate of flow from the drain tank to the service tank produces a change in the relative pressures in two tanks which acts to restore the flow to normal. A venturi 7 is interposed between the pipes 4 and 6 and is conected by a pipe 8 to the tank 1 for the purpose of withdrawing oil-laden air from the tank. The tanks 1, 2 may be separate tanks instead of partitioned parts of a single tank.
Patent GB-1473534-A (GB)
Title: Guttering
IPC: E04D13/064
Filed: 1975-01-27
Abstract: 1473534 Gutters HEPWORTH PLASTICS Ltd 27 Jan 1975 [11 June 1974] 25790/74 Heading E1B A fitting for providing a gutter outlet comprises a pipe portion 8 having at one enlarged end an outwardly extending flange 9 for mating with the underside of a gutter and having arms 10 extending from the outer periphery of the flange and terminating in inturned ends 11 for resilient engagement over the edges of a gutter with which the flange is mated. A hole 14 is cut in the gutter with a diameter less than the internal diameter of the flange 9 so that rain water may be drained into the pipe 8 without contact with the flange. The pipe 8 may provide a spigot for accepting a socket on a down pipe and may be of square or circular section. An annular sealing member may be provided between the flange and the gutter.
Patent GB-418082-A (GB)
Title: Improvements in apparatus for use in trimming or pasting wallpaper and the like
IPC: B44C7/02
Filed: 1933-09-19
Abstract: 418,082. Paper-roll supports. SANDERSON & SONS, Ltd., A., 52, Berners Street, and DERRETT, J. W., 10, Stanmer Street, Battersea, both in London. Sept. 19, 1933, No. 25906. [Class 100 (i).] Means for retaining a roll of wallpaper or the like on a paste board or table during trimming or pasting comprises a member or a pair of members each adapted to be removably secured to the paste board or table, a rod removably mounted in sockets in the member, and a spindle removably mounted on the rod and upon which spindle the roll is mounted. The roll 2 is mounted on two spindles 9 each provided with an eye at one end for engagement over a cranked rod 8 of square cross section, 5, 6 situated at right-angles to each other in a clamp member 3 secured to a board or table 1 by a screw 4. With the rods 8 in the holes 5, as shown, the roll 2 can be slid either way transversely of the board 1 to enable the edges 2<a> in turn to be trimmed by a knife ; to permit greater transverse movement of the roll, for trimming with scissors, the cranked rods may be fitted in the holes 5 at right-angles to the position shown, with the cranked ends outwardly of the board. When the edges have been trimmed, the roll can be mounted below the end of the board by inserting the rods 8 in the alternative holes 6, in which case the paper is led over the board, blank side uppermost, for pasting. If desired a roller may be provided at the opposite end of the board to enable the paper to be wound thereon during trimming. When only one clamp member is provided, the end of the spindle may be screwed into the cranked rod, or the end may rotate in a hole in the rod to enable the spindle to rotate with the roll.
Patent GB-1317534-A (GB)
Title: Chromium-carbon-iron alloy objects
IPC: C22C38/36
Filed: 1971-04-19
Abstract: 1317534 Iron-based alloy PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [3 April 1970] 25933/71 Heading C7A An alloy consisting of chromium, carbon and iron in amounts given by a point on a ternary composition diagram inside a parallelogram defined by the points 3À4%, Cr 13À5%; C 2À4%, Cr 30À5% C 3À4%, Cr 33%; C 4À4% Cr 16%, is unidirectionally solidified to form a matrix of α- and/or yiron with needle-shaped hexagonal crystals of ironcontaining chromium carbide (Cr, Fe) 7  C 3 . Unidirectional solidification may be effected by placing a bar of the alloy, in a hydrogen atmosphere, in a floating zone apparatus; the bar is then annealed and slowly cooled. The iron used is obtained by heating pellets of carbonyl iron in a hydrogen atmosphere at 900 ‹C., and possible impurities in the alloy are Co, Cu, Mo, Al, Ni, Mg, Si, Mn, S, P, Pb. The iron is melted in an alumina crucible in an argon atmosphere, the carbon and chromium added, homogenized and a bar cast. The desired composition is found by melting iron and carbon on a water-cooled copper plate by striking an electric arc, chromium added and the mixture re-melted. The pellet so obtained is remelted again in the same way until homogeneous. After the unidirectional solidification the object obtained may be heat treated e.g. at 950‹C., then quenched. The material is stated to have great strength at high temperatures and to be suitable for tools.
Patent GB-813990-A (GB)
Title: Improvements in gas turbines utilising the waste heat of internal combustion engines
IPC: F02G3/00
Filed: 1955-09-12
Abstract: 813,990. Motor power plant. HENSCHEL & SOHN G.m.b.H. Sept. 12, 1955 [Sept. 10, 1954], No. 26012/55. Class 110 (3). In a gas turbine plant which utilizes the waste gas heat from an internal-combustion cylinder engine plant, the quantity of air compressed by the gas turbine compressor is approximately equal to that consumed by the internal combustion engine plant the exhaust gases of which heat the compressed air in a heat exchanger, while the waste gases of the gas turbine are passed into the atmosphere. A compressor having four stages 1 to 4 with intermediate coolers 5 discharges through a heat exchanger 8 to a combustion chamber 12 which supplies working fluid to a turbine 13 driving the compressor and an electric generator 15. The exhaust gases of an internal combustion engine are passed through the heat exchanger 8 to heat the compressed air and are exhausted to atmosphere through the pipe 10. The turbine 13 may be connected to the shaft of the internal-combustion engine. If the internal-combustion engine has an exhaust turbine driven supercharger, the exhaust gases from the exhaust turbine may be passed to the heat exchanger. A hot water or low pressure steam boiler may be arranged in the discharge of the gas turbine. The internal combustion engine may be supercharged by air taken from the gas turbine compressor.