baber/WOPTO huggingface dataset:
Patent GB-1180924-A (GB)
Title: Improvements in or relating to the Processing of Bulked Yarns.
Inventor: BARNETT VERNON
IPC: D02G1/20
Filed: 1966-03-16
Abstract: 1,180,924. Developing bulk characteristics in yarns. V. BARNETT. 14 March, 1967 [16 March, 1966], No. 11465/66. Heading D1F. A yarn having latent bulk characteristics is twisted-for example by an uptwister-, is stretched sufficiently to regenerate its latent bulk, is overfed beyond 50% to allow the bulk fully to develop, and is then wound into a package. The apparatus described has three pairs of feed rolls, the first two pairs defining the stretching zone and the second and third pairs the overfeeding zone which has a yarn heater therein. The yarn is slightly stretched between the third pair and the package being wound. The package may be steamed, and dyed or scoured and is wound on a dye spring or on a tube which may be of larger diameter than the dyeing spindle to be used to allow for contraction of the yarn. The yarn may be doubled during the uptwisting and may be composed of nylon, polyester, polyacrylonitrile, or cellulose acetate.
Patent GB-974164-A (GB)
Title: Production of epichlorohydrin
IPC: C07C/
Filed: 1961-03-29
Abstract: A process for the production of epichlorohydrin in the form of a mixture thereof with water vapour comprises treating with steam an aqueous reaction medium which is provided by mixing an inorganic alkali hydroxide, water and dichlorohydrin, said reaction medium immediately prior to said steam treatment being at a temperature of below 55 DEG C., thereby stripping the epichlorohydrin, produced in the reaction medium, from said reaction medium as a gaseous mixture comprising epichlorohydrin and water vapour, the temperature of said gaseous mixture being stripped from the reaction medium being above the normal boiling point of the water-epichlorohydrin azeotrope, said gaseous mixture having a water vapour content which is at least 50% by weight of the water vapour and epichlorohydrin, the water vapour content being determined by the amount of steam admitted. The gaseous mixture of epichlorohydrin and water vapour which may also contain some dichlorohydrin is preferably condensed, phase separated into an organic phase and an aqueous phase containing dichlorohydrin, and the aqueous phase recycled as part of the dichlorohydrin source.
Patent GB-1239866-A (GB)
Title: Secondary radar system
Inventor: OWEN PHILIP COLLINSON
IPC: G01S13/76
Filed: 1969-03-04
Abstract: 1,239,866. Pulse radar. A. C. COSSOR Ltd. 23 Feb., 1970 [4 May, 1969], No. 11569/69. Heading H4D. A secondary radar ground station which includes an azimuth-scanning directional aerial, an omnidirectional aerial and a transmitter coupled to the aerials for emitting an interrogation group of pulses at least one of which is emitted by the directional aerial followed by a pulse emitted by the omnidirectional aerial, is arranged according to the invention to emit two pulses in succession from at least one additional direction aerial which views a fixed azimuth sector and the second pulse is of greater amplitude than the first. Spurious responses from reflectors off the scanning beam direction are thereby avoided. As applied to a three-pulse interrogator-side-lobe-suppression (I.S.L.S.), in which time-spaced pulses P 1 , P 3  are emitted by the scanning aerial and an intermediate pulse P 2  is emitted by the omnidirectional aerial, Fig. 2a (not shown) or a four-pulse I.S.L.S. system, in which a fourth pulse coincident in time with the first pulse, P 1 , is also, emitted by the omnidirectional aerial, the further pulses P 1 <SP>1</SP>, P 2 1 are time-spaced by the same interval as P 1  and P 2 , and pulse P 2 <SP>1</SP> may precede pulse P 1  or may be coincident therewith or may lie between pulses P 1 , P 2 , Figs. 4a, 4b, 4c (none shown). In the embodiment pulses P 1 <SP>1</SP>, P 2 <SP>1</SP> modulate an oscillator 34 phase-locked to a crystal socillator 36 and pulsed by cathode modulation; R.F. pulse P 1 <SP>1</SP> is attenuated by means 43. The pulses P 1 1, P 2 <SP>1</SP> are generated in every radar pulse repetition period but are fed selectively, and with selectively adjustable power, to fixed directional aerials 45, 46, 47 depending on the current azimuth angle of scanning aerial 26. For example if reflection suppression is required in a sector in the shadow of a large building or a hill the power of P 1 <SP>1</SP> and P 2 <SP>1</SP> is increased relative to other sectors.
Patent GB-591389-A (GB)
Title: Improvements in or relating to turntables for model railway vehicles
IPC: A63H19/34
Filed: 1945-05-07
Abstract: 591,389. Turntables for model railway. PINDER, T. May 7, 1945, No. 11596. [Class 132 (iii) ] A turntable for model railway vehicles comprises co-acting screw-threaded elements and friction surfaces adapted to co-act when the turntable is loaded, the weight of the locomotive or vehicle being used to turn or assist in turning the turntable, and the operative frictional engagement being broken when the table rises by resilient means to its normal unloaded position after the vehicle has run off. In Fig. 1, the turntable 1 has a screw threaded pin 2 mounted centrally beneath it, this pin carrying on it a nut 3 with a recessed or shaped underside adapted to co-act with the truncated conical stop 4 fixed below it on the base 5 of the turntable. The nut 3 fits easily on the pin 2, the stop 4 acting as a pedestal for the pin but not engaging it. To raise the turntable and support it in its unloaded position a spring 6 is interposed between the base 5 and the pivoted support lever 7 on which the pin 2 rests. The inclined part 8 of the lever presses on to the pin 2 causing it to tilt slightly so that the turntable when unloaded is inclined downwardly towards the approach rails 9. The weight of the vehicle causes the projection 10 to be lifted out of the recess 11, Fig. 3, and then the table begins to turn, the nut 3 locking with the stop 4 by frictional engagement and the table continuing to descend and turn until the other projection 10 travels up the ramp 12 and drops into the recess. The vehicle is now run off and the spring 6 and lever 7 lift the turntable, pin and nut 3 into the normal unloaded position, the nut 3 travelling down the pin 2 under its own weight until it is resting upon the stop 4, and the turntable is then ready to be used again. If used with an electrified track the projections 10 form contacts (insulated from the turntable and connected to one of its rails) which in turn engage the fixed contact 13 which is electrically connected to the appropriate approach rail. Fig. 8 and 9 show other embodiments of the invention. The Provisional Specification refers to Specification 556,783.
Patent GB-755675-A (GB)
Title: Method of heating steel slugs for forging or extrusion
IPC: B21J1/06
Filed: 1954-04-22
Abstract: A ceramic frit used in making a slip for coating a steel billet (see Group XXII), is formed from carbon and the oxides of aluminium, barium, boron, calcium, cobalt, copper, potassium, magnesium, sodium, nickel, phosphorus, silicon, titanium, zinc zirconium.  The frit is smelted and ground and is then mixed with chromic oxide, pyrophyllite, clap sodium nitrite, sodium pyrophosphate and water to form the slip.  Reference has been directed by the Comptroller to Specifications 663,357, 684,013 and 705,812 [all in Group XXII].
Patent GB-129460-A (GB)
Title: Improvements in or connected with Pressure-relieving Devices for Fluids.
IPC: F16K17/40
Filed: 1918-07-17
Abstract: 129,460. British Refrigerating Co., and Baldwin, O. H. July 17, 1918. Pressure-relieving devices for fluids.-In a de. vice of the kind comprising a semi-spherical frangible member, such as c, the breaking-piece is reduced in thickness by a number of grooves, recesses, or notches c formed inside or outside the member preferably after being moulded or pressed to shape. Two such members may be used side by side, as shown, and secured in a casing a by perforated caps b screwed down upon the flanges d.
Patent GB-565019-A (GB)
Title: Improvements in or relating to the operation of collets or chucks in machine tools
IPC: B23B31/20
Filed: 1942-08-21
Abstract: 565,019. Chuck-operating mechanism. BAIGENT, G. M. Aug. 21, 1942, No. 11828. [Class 83 (iii)] In chuck-operating mechanism for machine tools, such as lathes, a collet 10 in a hollow spindle 11 is actuated by a draw-spindle 12 having a grooved collar 16 co-operating with a shoe 15 on a lever 13. A compression spring 17 normally presses the lever to chuck-closing position and opening is effected by a shoulder 19 on a reciprocable rod 20 engaging a dog 18 on the lever. In operation, a tube 25 secured to the rod 20 is engaged by the head of a stop 27 on the turret stop-plate 26 when the turret is fed forwards by hand and the rod then moves forward with the turret. When the dog 18 -and shoulder 19 engage, the chuck is opened and the bar-stock is fed forward in conventional manner against a work stop on the turret, which pushes it back until the required length projects from the chuck, and as the turret comes to rest the dog 18 is released from the shoulder 19 by an incline 21 on the rod 20 riding on a fixed pin 22, thereby allowing the spring 17 to close the chuck. On indexing of the turret, the other stops on the stop-plate 26, which do not carry heads, pass inside the tube 25 when the turret is advanced and hence do not open the chuck. The mechanism may be combined with that described in Specification 565,020, in which the turret is fed forwards by a hand lever under dashpot control so that the bar-stock may engage the feed stop without bounce. The mechanism may also be combined with that described in Specification 565,021, in which a safety lock is provided for preventing rotation of the turret until the forward stroke has been completed, the operating rod for the device-sliding through the tube 25 and being actuated by the stop 27 in the work-changing station of the turret. The mechanism may also operate with separately fed work pieces instead of bar-stock, the new work pieces being placed in the chuck by hand or being presented thereto by the turret, the finished work being removed from the chuck by a spring ejector. The rod 20 may be operated manually at 23 and the chuck may be an air or magnetic chuck &c.
Patent GB-1506684-A (GB)
Title: Methods of and/or apparatus for spontaneous breathing supply
IPC: A61M16/12
Filed: 1976-03-24
Abstract: 1506684 Respiratory gas supply FISHER & PAYKEL Ltd 24 March 1976 [26 March 1975] 11855/76 Heading AST [Also in Division Bl] Apparatus for supplying a mixture of air and a breathable gas to a patient for spontaneous breathing comprises a centrifugal fan (1) supplying air to a tubular mixing chamber (2) within which is a tube (20) connected to a breathable gas supply apparatus through a pressure reducing valve, the tube extending diametrically across the chamber (2) and having a slit or slot (23) therein directed downstream of the fan whereby manual adjustment of the rate of flow of the gas automatically effects adjustment of the rate of flow of air so that the delivered rate of flow of the mixture remains substantially constant. The mixing chamber may be connected to a bacterial filter, a humidifier or nebuliser and thence to a face mask, tracheal tube or treatment chamber.
Patent GB-442639-A (GB)
Title: Handle protector on earth-working tools
IPC: B25G3/02
Filed: 1935-04-17
Abstract: 442,639. Pick &c. handle sockets. NETZER, A., Triesen, Lichtenstein. April 17, 1935, No. 11906. Convention date, April 17, 1934. [Class 61 (i)] A pick &c. handle protector comprising an elliptical socket part 1 with forwardly extending members 2 adapted to lie along the narrow edges of the handle 3 and engage in the eye of the pick 4 is made from a sheet metal blank having two resilient arms formed integrally with a base piece which latter is bent into a closed ring and its edges united together.
Patent GB-1038737-A (GB)
Title: A process for the preparation of polyalkylcyclohexenes
IPC: C07C5/11
Filed: 1965-03-19
Abstract: Polyalkylcyclohexenes are obtained by reducing polyalkylbenzenes with an alkali or alkaline earth metal in liquid ammonia with a without a proton donor.  The proton donor when used is preferably present in an amount less than equivalent to metal and may be water, alcohol or an ammono-acid.  Reaction is effected at - 50 DEG  to 130 DEG C.
Patent GB-118316-A (GB)
Title: Improvements in Apparatus for the Manufacture of Seamless Pulp Tubes and the like.
Inventor: THAME CALVERT
IPC: D21J3/00
Filed: 1917-08-20
Abstract: 118,316. Thame, C. Aug. 20, 1917. Collapsible spindles and rollers.-A collapsible roller for winding paper, cardboard, or pulp into tubes comprises a split sleeve with a hinged filling- piece, the sleeve being normally mounted on a cylindrical carrier to receive the pulp &c. and being removed therefrom to allow of turning the filling-piece inwardly to enable the sleeve to contract. As shown, the sleeve e, preferably of aluminium or one of its alloys, is slit longitudinally and to one edge is hinged a filling-piece k, the free edge m of which and the adjacent edge n of the sleeve being halved to make a continuous surface. The sleeve is mounted on a carrier a preferably comprising a number of pulleys c. The sleeve is provided with two or more inclined slots j adapted, when the sleeve is pushed on to the carrier a, to engage dowels d<1> carried by the end pulley and thereby twist the sleeve slightly so as to cause rollers g carried by lugs i on the other end of the sleeve, to engage cam slots or projections f on the other end pulley c and thereby tighten the sleeve on to the carrier. When the pulp &c. is wound, the sleeve e is removed from the carrier a, and a suitable tool is inserted to expand the tube slightly and thereby allow the filling-piece k to fall inwardly so that upon removal of the tool the sleeve may contract to permit ready removal of the tube.
Patent GB-669974-A (GB)
Title: Improvements in automatic shotgun
IPC: F41A11/00
Filed: 1947-05-05
Abstract: 669,974. Smallarms. SOC. ITALIANA E. BREDA PER COSTRUZIONI MECCANICHE. May 5, 1947. [May 4, 1946] No. 12014/47. Class 119. A long recoil shotgun, of the kind having a cartridge magazine 1a, Fig. 5, extending below the barrel 1, comprises five groups of elements as described below each group being connected to another by manually disengageable means which do not require the use of tools. The gun illustrated has the features of that forming the subject of Specification 649,519. The first group comprises the butt 3, cartridge magazine 1a, recuperating spring 9, the breech block and its return spring, and a magazine cover 6. Upon the removal of a thumbscrew 5, Fig. 3, the cover 6 can be taken off thus permitting the removal of the second group, namely the barrel 1, as shown in Fig. 5. Another group consists of the percussion, firing and cocking mechanism of the form illustrated in Fig. 8 of Specification 649,519, this group having axially removable pivot pins for the hammer and trigger and being removable from the stock after the withdrawal of a pin 10, Fig. 9. The depression of a spring pressed plunger permits the withdrawal of a U-shaped member 24 which then allows removal of the fourth group, namely the cover 22 of the firing mechanism. A fifth group, Fig. 16 (not shown), consists of the unit which includes the ejector and the means for locking the breech-block in the firing position.
Patent GB-1424016-A (GB)
Title: Platform suspended in a gimbal frame and stabilisation system therefor
IPC: G01P15/14
Filed: 1973-03-13
Abstract: 1424016 Automatic control of attitude HOLLANDSE SIGNAALAPPARATEN BV 13 March 1973 [15 March 1972] 12089/73 Heading G3R In a stabilized platform system, including a platform motor and a tacho in the feedback path of a servosystem for each of two axes of relative movement, signals generated by the tacho due to e.g. a ships movements are compensated, by combining with each tacho output signal, at the input of a corresponding servo final amplifier, a signal derived from a corresponding angular velocity indicator mounted on an outer gimbal frame of a two frame system supporting the platform.  As shown a radar antenna supporting platform 3 is mounted in gimbal frame 4,5, outer ring 5 being fixed to the ship. Servo final amplifier 15 controlling rotation about gimbal axis 1 receives as inputs a gyro derived error signal, the output of tacho 14, coupled to motor 13 mounted on gimbal frame 5 and driving the table through gears 16, and the compensation signal, derived from angular velocity indicator 28 in the form of a rate gyro, or laterally sensitive accelerometer, and processed in demodulator 26 and low pass filter 27 to remove ship's vibration frequency components from the signal and to match the nature of the tacho feedback loop. The servo final amplifier output controls motor 13 to keep the table horizontal in co-operation with a second similar system (not shown), appertaining to motion about gimbal axis 2, and utilizing signals from angular velocity indicator 29. The gyro error signal e, provided by one, or both of synchros 10, 11 is fed to the servo final amplifier via demodulator 17, filter 18 suppressing any signal component at the gyro nutation frequency, and integration network 19, and is zero when the platform is horizontal, the axis of gyro rotation being maintained vertical to the earth's surface by torquers 8, 9 controlled by translation accelerometers (not shown) via amplifiers (not shown). The servo final amplifier comprises an adding amplifier 20, integrating units 25 and 24 having the same time constant, pulse length modulator 23, and switching power bridge 23, motor 13 being connected into the bridge, the feedback of unit 24 ensuring voltage linearity of gain. The analytical nature of the system is discussed in relation to Figs. 2, 3A-3C and 4 (not shown), typical values of integrator and filter time constants being given.
Patent GB-567384-A (GB)
Title: Improved grinding apparatus for correcting errors in surfaces
IPC: B24B23/02
Filed: 1943-07-26
Abstract: 567,384. Grinding. HUGHES, A. O. July 26, 1943, No. 12131. [Class 60] Apparatus for correcting errors in surfaces by grinding out high spots, comprises a sole plate a movable by hand over the surface, and having pivoted thereto at a<1> a head b carrying the spindle of a grinding-wheel c driven by a flexible shaft d or by an electric, compressed air, or other motor. The spindle of the wheel c is so arranged that when the wheel contacts the surface, its grinding face is at an inclination thereto ; the head b has a handle portion e and is adjustable by means of a screw f acting against the pressure of a spring g. In a modification, the head is slidably mounted on a pillar on the sole plate, being pressed upwardly by a spring; in operation, with both forms, the device is moved over the surface to the spot to be ground and the wheel is then lowered on to the surface by pressure of the hand on the grinding-wheel head. The amount of movement of the head on the sole plate may be predetermined by means of co-operating adjustable lugs thereon ; the apparatus may be used on flat and other surfaces.
Patent GB-542768-A (GB)
Title: Improvements in cardboard or like boxes or containers
IPC: B65D5/46
Filed: 1940-07-25
Abstract: 542,768. Cardboard containers for fruit &c. PEACOCK, A. M. July, 25, 1940, No. 12136. [Class 18] A collapsable cardboard basket for marketing fruit, and vegetables &c. has a central partition 14 secured to the bottom adapted to be inserted in a slot 18 in a cross-tie 24, an arched part 17 serving as a handle. For collapsing panels 8 which engage by hook-like formations are disengaged and folded outwards, panels 6, which are hinged to the base 1, are also folded outwards, partition 14 is bent about a horizontal crease, disengaged, and laid . on the bottom and the container collapsed by folding the front and back walls 2 in the same direction about their hinge lines 3. Lid 20 has a slot 23 for the handle.
Patent GB-687247-A (GB)
Title: A process for purifying alkenes
IPC: C07C7/171
Filed: 1951-05-24
Abstract: 1-Alkenes of 5-8 carbon atoms in the product of vapour phase cracking of raw material containing more than 50 per cent of paraffin wax are purified by separating an initial fraction containing one or more of said alkenes, treating with not more than 5 per cent by weight of at least 90 per cent sulphuric acid, at not more than 60 DEG  C. until the temperature ceases to rise, and fractionally distilling to obtain fractions of 1-pentene, hexene, heptene or octene boiling within 1 DEG  C.  The initial raw material may be naturally-occurring waxes or cracked fractions thereof or synthetic products such as a Fischer-Tropsch wax.  In an example, a residual wax from crude oil is cracked, a 55-135 DEG  C. fraction separated, and treated with 2 per cent of 96 per cent H2SO4 for 20 minutes, temperature rising to 45 DEG  C. The tar formed is separated, the fraction washed with water and alkali, and fractionally distilled to recover 1-hexene, 1-heptene, and 1-octene.
Patent GB-135771-A (GB)
Title: Charts for Designing to Measure, Patterns of Coats, Blouses, Bodices and Garments of a like Nature.
Inventor: COWELL HENRY ALLEN
IPC: A41H3/00
Filed: 1919-05-15
Abstract: 135,771. Cowell, H. A. May 15, 1919. Cutting-out and measuring for.-Charts for drafting patterns of coats, blouses, bodies, and like garments consist of four portions, namely, back, front, and sleeve charts, and a pattern strip. The back chart, Fig. 1, has a cut-out portion, a waist-line indicator X, scales A, B, D, F, G, H, J for neck, chests, neck to waist, chest, under arm to waist, waist, and hip measures. It has also a back arm-hole shape C. The front chart, Fig. 2, has two cut-out portions as shown, scales L, M, N, P for chest measures, and a slot U in which a pin on a bar R can move, the bar R having a scale and a slot T in which a vertical bar Q, also having a scale, can be moved. This chart has also a waist-line indicator X, a. front armhole shape 0, a revere shape S, and a hip measure W. In Fig. 3 is shown the pattern strip, the part a<1> being for the back shoulder, B<1> for the back hip, C' the front hip, and D<1> the back, front, and dart and panel shapes. It also has a 21-inch scale E<1>. For drafting sleeves, the chart shown in Fig. 4 is used, having perforations E<2>, F<2>, K<2>, J<2>, L<2> M<2>, H<2>, G<2>, and shapes Y<2>, X<3> for top of top sleeve and top of under sleeve.
Patent GB-830145-A (GB)
Title: Improvements in automatic electric cut-outs
IPC: H01H73/04
Filed: 1956-04-20
Abstract: 830,145. Automatic circuit - breakers. BUSCH - JAEGER DURENER METALLWERKE A.G. April 20, 1956 [April 28, 1955], No. 12211/56. Addition to 789,326. Class 38 (5). In the circuit-breaker of the parent Specification the contact - operating member comprises a recessed switch rod 1 actuated by the toggle mechanism and a supporting rod 4 for a bridging contact 8, the rod 4 having an enlargement 5 which is received in the recess 2 of the rod 1. The enlargement 5 is bowed so that the crest of the bow bears on the outer casing 6. The bridging contact 8 is mounted for limited displacement on the rod 4 and is influenced by a spring 11.