baber/WOPTO huggingface dataset:
Patent GB-351847-A (GB)
Title: Improvements in or relating to gear-cutting machines
IPC: B23F5/14
Filed: 1930-09-30
Abstract: 351,847. Gear-cutting. L€SSER, E., 219, Hardstrasse, Zurich, Switzerland. Sept. 30, 1930, No. 29285. Convention date. Oct. 31, 1929. [Class 83 (iii).] Tools.-In an attachment to a gear cutting machine, a number of gears 1, 2 mounted either singly or in superposed sets on separate mandrels 3, 4, are generated simultaneously by means of a single reciprocating cutter 5 having rack tooth sections coacting with each set of blanks. More than two mandrels may be employed and the tool may consist of a number of separate rack cutters mounted in a single holder. The rotary generating movements of the blanks may be obtained through worm gearing 10 and spur gears 6, 7, 8. By removing the attachment the normal work spindle 11 may be used for cutting large gears.
Patent GB-301621-A (GB)
Title: Improvements in or relating to electric coupling elements
IPC: H01R13/595
Filed: 1927-11-03
Abstract: 301,621. General Electric Co., Ltd., and Quance, F. G. Nov. 3, 1927. Plug couplings; sheathing or covering, connection of.-A socket member is provided with a cord-grip that clamps two or more conductors together at one point and each conductor singly at another point. The insulating body is made in two parts 2, 3 that are positioned relatively bv bosses 21 and recesses 22 and are connected by a bolt passing through holes 23, 25. The conductors pass together through a groove 11, 16 having interengaging projections 15, 17 and then pass singly through grooves 12, 13, 18, 19 having projections 14, 20. Each socket is formed of a sheet brass stamping 32 bent to shape and surrounded by a split steel tube 33. One or both the grooves 6, 7 in which the sockets are housed are elliptical in form to allow movement of the sockets towards or away from one another. The body may be formed with ducts for cooling-air and may be surrounded by an earthed metal collar. A helical wire guard may surround the conductors.
Patent GB-1372669-A (GB)
Title: Pump
IPC: F04D29/44
Filed: 1973-06-21
Abstract: 1372669 Indicating direction of rotation G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 21 June 1973 [22 June 1972 9 June 1973] 29457/73 Heading G1K [Also in Division H2] In a motor-driven pump, a pin 20 mounted in the housing 1 is operable from outside the housing, by a knob 28, to bring an annular area 23 on the pin into contact with an annular face 21 of the pump rotor 16 so that rotation of the pin may indicate the direction of rotation of the  pump rotor 16 or may be used to unlock the motor rotor 9 should it be impeded by lime or dirt deposited within a surrounding tube 11, the pin having at least one screw-threaded portion 25 by which it may be clamped, with pressure loading of an interposed seal 27, in a neutral position with its annular area 23 spaced apart from the rotor annular face 21. The annular area 23 of the pin may comprise a rubber or plastics tyre 24, or the area 23 and face 21 may have complementary teeth for positive driving engagement.
Patent GB-1222679-A (GB)
Title: A survey camera
Inventor: ENDO HIDETOMO
IPC: G03B15/00
Filed: 1968-06-20
Abstract: 1,222,679. Camera for use in surveying. H. ENDO. June 20, 1968 [June 20, 1967; Sept.6, 1967], No.29524/68. Heading G2A. A survey camera comprises a lens 4 mounted in a housing 4a provided with a slit 2, the housing being pivoted at the optical centre of the lens 3. A photographic film 5 is disposed arcuately about said optical centre on the locus of the focal point of said lens as the housing rotates, the slit traversing the film and progressively exposing it to the field of view. To determine a position when surveying, two or more markings whose positions are known are photographed and from the separation of their images on the film the position of the point from which the photograph was taken can be calculated. The application of the method to determination of a ship's latitude using the images of the sun and horizon is also described.
Patent GB-1462712-A (GB)
Title: Voussoirs
IPC: B21D53/00
Filed: 1974-02-12
Abstract: 1462712 Tunnel and well linings PONT-AMOUSSON SA 12 Feb 1974 [19 Feb 1973 31 Jan 1974] 29578/76 Divided out of 1462711 Heading E1F The Specification describes the voussoir disclosed in Figs. 10-12 of the parent Specification and has claims directed to that voussoir.
Patent GB-844278-A (GB)
Title: Fuel compositions for internal combustion engines
IPC: C10L1/30
Filed: 1958-09-16
Abstract: A gasoline composition for internal combustion engines contains from 0.001% to 1% by weight of a chlorinated aliphatic compound of formula: <FORM:0844278/III/1> or <FORM:0844278/III/2> where R1 and R2 are chlorine or hydrogen atoms or aliphatic groups e.g. methyl; R3 is hydrogen, methyl or chloromethyl; R4 is hydrogen or an alkyl group e.g. ethyl, iso-amyl; and R5 is hydrogen or an aliphatic group e.g. a C1 to C20 alkyl group such as ethyl, iso-amyl. R4 and R5 may also contain sulfhydryl, alkoxy and nitrile groups.  Compounds of both formulae are specified.  The additives may be incorporated in lubricating oils for addition to the gasoline; such oils may be paraffinic or naphthenic and are preferably solvent-treated, having a viscosity of between 76 and 329 cs. at 50 DEG C.  For use in two-stroke engines the lubricating oils may be diluted with between 50% and 70% of a lower-viscosity oil e.g. of viscosity between 1 and 22 cs. at 50 DEG C.; diluting oils are exemplified by kerosene, spindle oil, or gas oil.  From 0.1 to 50% by weight of additive, based on the lubricating oil before dilution, is incorporated in the lubricating oil, of which latter 2 to 10% by volume is blended with the fuel.  For use in four-stroke engines the lubricating oil may be a low boiling petroleum oil or an esterbased synthetic oil, preferably of viscosity 5 to 30 cs. at 50 DEG C.  In this case the lubricating oil composition contains from 0.1 to 50% by weight of additive, and the composition is blended with the fuel in a proportion of 0.1 to 1%.  The gasoline compositions may contain various optional ingredients e.g. oiliness agents, resin (gum) solvents, antiknock agents, anti-oxidants, anti-rust agents, metal deactivators and scavengers.
Patent GB-242800-A (GB)
Title: Improvements in and relating to potato-planting machines
IPC: A01C9/00
Filed: 1924-12-10
Abstract: 242,800. Ruetz, C. Dec. 10, 1924. Planting-machines; single-furrow ploughs; tools, mounting adjustably.-A potato planting machine comprises an inclined track adapted to receive a single row of potatoes from a container and to discharge. them singly into a furrow, mechanical conveyers being provided to receive directly any potatoes pushed off the track and convey them to a receptacle. The track consists of a reciprocating slide 30 the upper part of which forms a screen or grating extending over a slot in the bottom of the container 1. The container is provided with an inclined wall or plate 3 and with sides sloping at the lower parts towards the bottom slot. The slide 30 is spring-controlled and is connected to a pivoted lever 23 by a wire rope 36 passing over pulleys 25, 27. The lever 23 is pivoted between two beveled beams on which the slide 30 rests. It is oscillated by a rod 8 carrying a roller engaging with one of a pair of cam discs 7<1> mounted on the axle 37, and enclosed in a casing 6. The speed of oscillation may be varied by moving the discs along the axle to bring the other cam into engagement with another roller on the rod 8. A bent agitator rod 2 in the container is connected to the lever 23 by a bell-crank 32 and rod 33. In the track of the potatoes are forks 13 which may be raised or lowered to regulate the discharge. They are connected by link and lever mechanism to a controlling handle on one of the guiding handles 21. Above the slide 30 are rollers 34 carried by arms pivoted on a bar fixed to the rear wall 1<1> of the container. The rear roller is spring-controlled. On each side of the track is an endless conveyer chain fitted with angle plates 38 and driven by chain gearing from the axle 37. They deliver the potatoes that fall on them into a removable box 5, from which they may be returned to the container 1. Pivoted on the rear end of the lever 23 is a spring-controlled stop plate 24 over which the potatoes are pushed singly by a pivoted lever 28 when the plate is lowered. The two-armed lever 28 is bent at right angles and has one end engaging beneath the lever 23. The potatoes fall between a loop 19 fixed on the lever 23 and a semicircular head on a rod 17 connected to one arm of a. pivoted bell-crank 16 the other arm of which engages under the lever 23. This arrangement is to prevent rolling of the potatoes and to insure even spacing in the furrow opened by a plough 14 having a rearwardly projecting part 40 pivotally supported by a spindle 15 and bracket 45. The plough is adjusted by means of a screw s engaging a forwardly projecting arm 11. The guiding-handles 21 are attached to the part 40 and carry discs 22 for closing the furrow.
Patent GB-1044318-A (GB)
Title: Improvements in or relating to load supporting rails
IPC: B60P3/05
Filed: 1965-07-13
Abstract: 1,044,318. Vehicle roofs. FRUEHAUF CORPORATION. July 13, 1965 [July 21, 1964], No. 29715/65. Heading B7B. A supporting rail 23 is suspended by hangers 25 from roof members 17 and comprises a flanged extruded section 39 bent round a stainless steel tube 41, apertures 47 forming openings to receive meat hooks 45.
Patent GB-841961-A (GB)
Title: A fuel control system or a gas turbine power plant
IPC: F02C9/16
Filed: 1957-09-20
Abstract: 841,961. Gas-turbine plant. UNITED AIRCRAFT CORPORATION. Sept. 20, 1957 [Sept. 21, 1956], No. 29734/57. Class 110 (3). [Also in Group XXIX] In a gas-turbine fuel control system the pressure drop across the throttle valve 104, Fig. 3, is maintained substantially constant by a pressure-regulating valve 106 connected by passages 108, 110 to the upstream and downstream sides of the throttle valve, a governorcontrolled variable orifice 142 and a first adjustable orifice 112 connected between the variable orifice 142, Fig. 4, and the downstream side of the throttle valve 104. In the system shown, fuel from pump 32 is fed to the combustion chamber through a shuttle valve 46 from one of alternative pipe lines 37, 42 as determined by a transfer system 34, Fig. 2, according to whether normal or emergency operating conditions obtain. Under normal conditions flow occurs through pipe line 37 to a control device 40 which may be of the type described in Specification 781,961, but under emergency conditions flow takes place through pipe line 42 to an alternative control device 44, Fig. 3, operated by a governor-controlled device 60, Fig. 4. Throttle valve 104 is of the combined reciprocating and rotating sleeve type, reciprocation being effected by a servo-piston 182 in accordance with the pressure in the compressor inlet 12 and rotation by a second pilot-controlled servo-piston 222. Piston 182 is operated by fuel passing through a branch pipe 64, pressure in the compressor inlet being communicated through a pipe line 62 to a bellows 188 controlling a hinged-type leak-off valve 196, by which the pressure on the underside of the piston is varied. Feed-back is derived from a cam surface 206 engaged by a spring-pressed rod 208 bearing against the hinged valve closure member 190. Piston 222 is actuated by a pilot-operated cam 226 and floating lever 229 operating a valve 224 regulating the supply of fuel to the underside of the piston through a time delay regulator 240. This latter operates to limit the rate at which the fuel supply may be increased, while ensuring a rapid cut-off of fuel. The fuel transfer system, Fig. 2, includes a valve 70 controlling the supply of fuel from the inlet 36 to the alternative pipe lines 37, 42, effected by anamplifier valve 80 controlled by the opening or closing of an orifice 76. Under normal conditions this orifice is closed, but it may be opened by a solenoid energized by a manual switch or, in the event of a predetermined speed reduction, by a governor-controlled switch 168, Fig. 4. Under these latter conditions fuel passes through pipe line 42 and the valve 106 acts as a by-pass, its movement being controlled by pressure communicated via a pipe line 54 from the governor-controlled orifice 142. Fuel is fed to orifice 142 through a pipe line 56 branching from a line 114 in parallel with line 110 and including a second adjustable orifice 116 controlling the minimum fuel flow.
Patent GB-248492-A (GB)
Title: Self contained portable spirit blowpipe
IPC: F23D99/00
Filed: 1924-12-11
Abstract: 248,492. Wilson, E. A. Dec. 11, 1924. Blowpipes, jewellers' and like. -A portable spirit blowpipe for soldering purposes comprises a short tube A containing absorbent material saturated with petrol or other spirit and a long tapered tube B through which air is blown.
Patent GB-498209-A (GB)
Title: Improvements in and relating to processes for refining mineral and vegetable oils and fats
IPC: C11B3/00
Filed: 1937-11-01
Abstract: Vegetable and mineral oils and fats are refined by successive treatment with alkaline lye, preferably KOH, with alkali silicate and finally, after washing with water, with an acid reagent such as K alum, to correct the alkalinity due to the first two stages. In the example, 100 l. of crude oil are treated with 20 l. of a reagent consisting of 10 kilos. of 42 DEG  B<\>ae. of KOH per 100 l. of water.  After mixing for 20 minutes, 20 l. of reagent consisting of 2,5 l. of Na or K silicate per 100 l. of water are added. Hot water is added and after standing the water is drawn off.  The oil is washed with hot water two or three times and finally washed with a 5 per cent solution of K alum.  This treatment removes oxidizers gums, mucilages, parenchymes, albumins and other substances which readily oxidize or cause oxidation.  Oils and fats so treated resist rancidity, thickening, discoloration and other effects of oxidation for a considerable period.
Patent GB-282957-A (GB)
Title: Improvements in lightning arresters
IPC: H02G13/00
Filed: 1926-11-25
Abstract: 282,957. Ericsson Telephones, Ltd., McClarence, F., and Brookes, A. Nov. 25, 1926. Protectize arrangements. - In lightning- arresters having face-to-face conductors with an air gap across which a potential-relieving discharge takes place, the conductors, such as carbon blocks, are separated by steps of insulation material integral with the conductor or conductors. The steps are produced by dipping or spraying the insulating material or by affixing a strip, such as celluloid, by means of a celluloid-acetone cement. Several conductors forming a series of gaps may be cemented together by applying each to the others prior to drying of the insulation step. The whole working surface of the conductor may, m addition, be thinly coated with an insulating varnish or lacquer prior to, or after, the application of the insulation step or steps.
Patent GB-859445-A (GB)
Title: Basically substituted alkyl xanthine derivatives and acid addition salts thereof and a process for their production
Filed: 1957-09-23
Abstract: The invention comprises compounds of the formula T-A-NH-R (wherein T is a 1-theobromine or 7-theophylline radical, A is an alkylene radical and R is a hydroxyalkyl radical which may be substituted by one or more alkyl, aryl and/or hydroxyalkyl radicals) and their acid-addition salts ; and their preparation by heating a compound of the formula T-A-X (wherein X is a halogen atom) with an amine RNH2. The group R preferably has the construction -C(R1,R2)-CH(R3)-OH (wherein R1 and R2 each represents hydrogen or an alkyl or hydroxyalkyl radical and R3 is hydrogen or an alkyl or aryl radical). Advantageously, at least 3 mols of amine to each mol of the halogen compound are used, and the reaction temperature is preferably from 110 DEG  to 170 DEG  C.  Examples are given, the products being isolated as hydrohalides.
Patent GB-225061-A (GB)
Title: Improvements relating to guide rollers and sheaves for the haulage ropes of collieryand the like trams
IPC: B61B12/02
Filed: 1923-11-29
Abstract: 225,061. Thomas, T. J. Nov. 29, 1923. Guide rollers and sheaves for colliery and like haulage ropes are spring-mounted so as to yield towards their supports in the event of excessive strain. Fig. 1 shows one construction in which double bearings for eyed plungers e are provided by the turned-over ends of a bracket f secured to a sleeper. Springs h are interposed between the eyes and the brackets, and pins i prevent the plunger from being withdrawn completely. In a modified support, the brachet f is mounted between two sleepers and is carried by two dropped longitudinal members extending between adjacent sleepers. In some cases the rollers may be mounted to depend from the roof of a mine in places where the drag of the tail rope has an upward component, the rope engaging the under or lower side of the roller in these, cases. Where the roller is to be used vertically for guiding a rope round a curve, the lower turned-over end of the bracket f is extended parallel to the flange of the drum and forms a kind of footstep-bearing by engaging with the flange. Fig. 5 shows the invention applied to a guide sleeve mounted on a vertical shaft n. In this case the shaft n moves in slotted metal-faced planks p, the bearing for the top plunger p being formed by the flange s of the uppermost metal plate, while double bearings for the lower plunger are formed by the channel-section bracket u. Specification 196,859 is referred to.
Patent GB-300389-A (GB)
Title: Improvements in or connected with screwing machines
IPC: B23G1/22
Filed: 1927-11-10
Abstract: 300,389. Kendall & Gent (1920), Ltd., and Ingham, E. M., (Representative of Ingham, J. R.). Nov. 10, 1927. Screwing; screwing die-heads.-Machines of the headstock and slide type, fitted with concentric die-heads of the type described in Specification 197,541, are provided with means for taper threading. In the case of a machine with non-rotating die-bead the ring d<1> which actuates the pivoted die carrier is driven by an adjustable two-part worm on a shaft, f<1> provided with a hand wheel for resetting and a pinion engaged by a rack e<3> pivoted to the headstock at e'. Means are provided for raising the rack from the pinion when cutting a parallel thread. When the machine has a rotary die-head the actuating ring D<1>, Fig. 5, carries pins engaging inclined slots in a sleeve operated by a yoke F<8> traversed by rack and pinion gearing driven by a rack pivoted to the work saddle at E and sliding through raising and lowering gear G<1>. Specifications 5241/83, 18988/11, and 264,329 also are referred to.
Patent GB-1304255-A (GB)
IPC: G01T1/164
Filed: 1970-06-22
Abstract: 1304255 Cathode-ray tube displays; television; phase shifting and absolute value amplifiers NUCLEAR-CHICAGO CORP 22 June 1970 [23 June 1969] 30126/70 Headings H3T H4F and H4T  In an arrangement for displaying the output signals of an Anger-type scintillation camera which occur in a pre-selected spatial "window" the latter is determined by a pair of periodic signals of the same frequency and adjustable relative phase and amplitude, the X and Y co-ordinate signal outputs of the camera being compared with a respective one of the periodic signals in respective comparison means which produce output signals when the amplitudes of the latter signals are equal to or greater than the corresponding co-ordinate signal, the simultaneous occurrence of output signals from the two comparison means being employed to produce an unblinking pulse for a cathode-ray display tube the beam of which is deflected by the X, Y co-ordinate signals. Fig. 1, shows the general scheme (the waveforms occurring on the various numbered conductors being shown with similar numbering in Fig. 2) in which the periodic signals are derived from a sinusoidal oscillator 20 via a phase shifter 30 and amplitude adjusting means 40, 50 the resulting periodic signals 42, 52 being fed to respective comparison circuits 100, 110 which also receive the Y and X co-ordinate signals from generator 60 associated with the scintillation camera via absolute value circuits 70, 80 respectively. Generator 60 also provides a Z output signal 63 from which timing signals 91 are produced and these latter signals are employed to control a gate and hold circuit 120 to supply an output pulse on terminal 121 when the comparison circuits simultaneously produce outputs 101, 111. Shift circuits may be connected between the co-ordinate generator 60 and the absolute valve circuits 70, 80 (Fig. 3, not shown) to enable the position of the "window" (Fig. 4) to be adjusted and "windows" of different shapes may be produced by assigning different relative phase and amplitude values to the two periodic signals (Figs. 5 to 8, not shown). Fig. 9 shows circuit details of blocks 30, 50, 80, 110 of Fig. 1, and of the X shift circuit 140 (of Fig. 3, not shown) and Fig. 10 shows the circuit of the emitter followers EF of Fig. 9. Fig. 11 shows an Anger-type scintillation camera system in which the "window" producing arrangement 340 may be incorporated, a raster generator 320 being provided to produce a multiplicity of X, Y co-ordinate type signals so that a "preview" of a particular "window" shape may be obtained.
Patent GB-298789-A (GB)
Title: Improvements in two stroke cycle internal combustion engines
IPC: F02M21/10
Filed: 1927-11-11
Abstract: 298,789. Olson, S. Nov. 11, 1927. Spray carburettors; vaporizers, external. - In a multi-cylinder engine air is compressed in the front ends of the cylinders or in a separate compressor and is delivered to a reservoir at a pressure between 15 and 75 lb. per sq. in. Part of this air is mixed with fuel in a chamber 23, Fig. 3, the air entering by the nozzle and inducing a flow of fuel from the pipe 21. The rich mixture so formed is passed through a coil 26 surrounding the exhaust pipe; a jacket 27 is placed outside the coil. The heated mixture is led into a second mixing chamber, and compressed air direct from the reservoir is added to it. A throttle valve is provided in this second compressed-air supply pipe and in the second mixing chamber, which delivers to the inlet manifold 33.
Patent GB-1359702-A (GB)
Title: Drilling luid stabilizer
IPC: C08F8/00
Filed: 1971-06-29
Abstract: 1359702 Hydrolysed polyacrylonitrile WOLFF WALSRODE AG 29 June 1971 [29 June 1970] 30339/71 Heading C3P [Also in Division E1] Partially hydrolysed polyacrylonitrile contains 1-25% of non-hydrolysed nitrile groups and at least half the hydrolysed groups are amide groups, the remainder being ammonium carboxylate groups. These products are obtained by heating an aqueous slurry of polyacrylonitrile at 180-220 C., preferably in the presence of a peroxide initiator, e.g. t-butylhydroperoxide, 1,3-bis(t-butyl-peroxyisopropyl) benzene or t-butyl amyl peroxide. The starting material is polyacrylontrile or acrylonitrilemethyl methacrylate copolymer. The aqueous product is mixed with attapulgite or asbestos to form drilling fluids. An exemplified composition contains attapulgite, bentonite, nitric acid and sodium chloride.