baber/WOPTO huggingface dataset:
Patent GB-220130-A (GB)
Title: Improvements in and relating to means adapted to compensate for thermal expansion inpipe lines
IPC: F16L51/02
Filed: 1923-07-03
Abstract: 220,130. Kossowski, W. July 3, 1923. Expansion joints. - Straight corrugated pipes are provided with means whereby variation in length of the pipe due to change in temperature of the fluid or gas passing therethrough is taken up or prevented, the said means being protected from the transfer of heat from or to the fluid in the pipe. Rods c connecting together collars b one at each end of the pipe a oppose elongation of the pipe and cause the expansion to be taken up by the corrugations. The pipe is provided with a covering i of asbestos.
Patent GB-1345603-A (GB)
Title: Method and apparatus for activating microchannel plates
IPC: C03C23/00
Filed: 1971-05-26
Abstract: 1345603 Treating glassware ZENITH RADIO CORP 26 May 1971 [27 May 1970] 17274/71 Heading C1M [Also in Division H1D] Micro-channel plates formed of a stack of very small internal diameter channels of lead glass are activated and made conductive by immersion in a reducing solution of a simple or complex metal hydride dissolved in an inert solvent. Preferred hydrides are of aluminium or lithium-aluminium and the preferred solvent is 1,-2,-dimethoxyethane, but diethyl ether and tetrahydrofuran are also suggested. A microchannel plate 3 supported by a clamp 9 on a wire 10 is suspended in the reducing solution 2 in a water-tight container 1 having a central inlet tube 22 and a tube 23 leading to a reflux condenser 4 with a moisture trap 5. Heating elements 6 maintain a required temperature, preferably the boiling temperature of the solution 2, and a magnetic stirrer 7 rotates an internal bar magnet 8 to circulate the solution 2 continuously. After running for 4 hours, the plate 3 is removed and residual reducing agent removed either by treating with hydrochloric, nitric or perchloric acid or by suspending the plate 3 above the boiling solution 2 so that the vapour condenses on the plate to dissolve the reducing agent. The plate 3 is then washed in distilled water and dried. In place of the fixed time of reaction, the hydrogen evolved may be removed by passing N 2  through container 1 and may be used to operate a float switch (17) for a given evolution of H 2  which operates a motor (19) to wind up the wire 10 which is fastened to a pulley (24) instead of to the stopper 11.
Patent GB-272699-A (GB)
Title: Improvements in and relating to jugs or teapots
IPC: A47G19/14
Filed: 1926-07-12
Abstract: 272,699. Twigg, P. M. July 12, 1926. Pots.-A teapot is formed with a spout 2 constituted by the upraised paw or hoof of an animal, a detachable lid 4 being formed as the head. the body 1 of the vessel as the body of the animal, and the handle as the tail 3 which is preferably fixed at both ends. In the example illustrated, a teapot is formed in the shape of a cat.
Patent GB-505322-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B31/02
Filed: 1938-06-11
Abstract: 505,322. Regulating compressors. BRITISH THOMSON-HOUSTON CO., Ltd. June 11, 1938, No. 17377. Convention date, June 12, 1937. [Class 8 (i)] [Also in Groups XIII, XXVII, and XXIX] A refrigerating - machine having a compressor and motor unit within a sealed casing is provided with an exhaust muffler having a pressure-relieving device con. sisting of a concave diaphragm and a piercing member, the concavity of the diaphragm being abruptly changed t( move the diaphragm into puncturing engagement with the piercing member upor the occurrence of a.predeter mined high pressure, thus rendering the machine in operative. The exhaus muffler 21 has an outlet 4( connected by a conduit to the condenser, the lower end of the muffler consisting of a concave diaphragm 41 and an apertured plate 42 carrying a piercing point 44. The piercing point 44 may be of half-round, section and secured in a circular hole in the plate 42. The exhaust muffler consists of a number of nested cupshaped members 35, the apertured end walls 37 of which form baffles.
Patent GB-837542-A (GB)
Title: Improvements in or relating to the manufacture of polymers in aqueous dispersion
Inventor: WARSON HENRY
IPC: C08F2/18
Filed: 1955-06-16
Abstract: Unsaturated esters are polymerized or copolymerized in dispersion in aqueous media containing a small amount of an alkali metal vinyl sulphonate, e.g. sodium vinyl sulphonate, but free from colloids, emulsifying and dispersing agents, by heating in the presence of a catalyst whilst maintaining the dispersion by mechanical agitation. Specified esters are vinyl acetate-vinyl benzoate and methacrylic esters.  The catalyst may be benzoyl peroxide or a redox system.  The molecular weights of the polymers may be controlled by the proportion of catalyst used or by adding an aldehyde, e.g. acetaldehyde, paraldehyde or propionaldehyde.  The aqueous phase may be separated from the polymer and reused, e.g. after "topping-up" with the vinyl sulphonate.  The monomers may be added to the aqueous phase gradually during the polymerization.  The polymers give clear solutions, e.g. in benzene, from which films may be cast.
Patent GB-945562-A (GB)
Title: Improvements in or relating to containers for fluids under pressure
Inventor: SANKEY JOHN BRUNDRIT
IPC: A62C13/00
Filed: 1961-05-12
Abstract: 945,562. Fire-extinguishing. SECRETARY OF STATE, WAR DEPARTMENT. May 10, 1962 [May 12, 1961], No. 17384/61. Heading A5A. A fire-extinguishing apparatus comprises a container having an upper wall 3 capable of flexing under the pressure of fire-extinguishing fluid within the container and means connected between this wall portion and a closure 7 at the lower end 2 of the container so as to restrain the wall portion 3 against flexure and in so doing to transmit from this wall portion to the closure a force sufficient to maintain the closure sealed against the internal fluid pressure. The connection means comprises a tie-rod 10 secured to the closure 7 having a sleeve 11 secured thereto, within which sleeve is carried a sleeve 16 which is exteriorly screw-threaded at its upper end and screwed into a bush 21 welded into and passing through the flexible wall 3. A septum 22 extends across the bore of the bush, which septum is adapted to be struck by a hammer 33 on a spring-urged arm 32, normally held in its inoperative position by a restraining lever 36 which, in turn, is held by a locking-pin 38 carried in a solenoid 39. Energization of the solenoid releases the arm to allow the hammer head to strike the septum with sufficient force for the impact to be transmitted to a spring- loaded plunger 23 which is thereby moved sufficient distance for a groove 24 therein to come opposite a ring of perforations 27 in the sleeve 16. This movement permits balls 28 in these perforations to move radially inwardly to allow the sleeve 15 to move downwardly sufficient distance to allow the closure 7 also to move downwardly for the escape of the fluid.
Patent GB-486261-A (GB)
Title: Apparatus for and method of transferring and revaporising liquefied gases
IPC: F17C9/02
Filed: 1937-06-23
Abstract: 486,261. Heat - exchange tubes. LINDE AIR PRODUCTS CO. June 23, 1937, No. 17424. Convention date, June 24, 1936. [Class 64(iii)] [Also in Group XXVIII] A heat-exchanger for liquefied and low-temperature gases may comprise a set of gas pipes 36<1>, wrapped with wire and nested in a single outer liquid pipe. Specification 465,043, [Group XXVIII], is referred to.
Patent GB-530072-A (GB)
Title: Improvements in high tension electric gas-blast circuit breakers
IPC: H01H33/56
Filed: 1939-06-15
Abstract: 530,072. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 15, 1939, No. 17517. Convention date, June 15, 1938. [Class 38 (v)] In a circuit-breaker of the kind in which co-operating gas-blast contacts are carried by spaced supporting insulators 2 and at least one contact is located in an extinguishing head at the end of an arm which is rotatably mounted on or with the supporting insulator, so that on separation of the contacts a free air isolating path exists between them, as in Specification 483,996, an auxiliary reservoir 4 containing enough gas or vapour for an opening-operation is located in the insulatorhead 3 and connected with the main reservoir 6 in the base 1, reservoir 4 being filled after each operation, preferably immediately, so minimising loss of gas from the connecting-pipe 5. To recharge reservoir 4, the valve 7 is opened electrically or pneumatically. Valve 8 is of the non-return kind, and bleed-holes 11 allow release of the pressure from the pipe after recharging. A valve 9 admits pressure-gas from 4 to the contacts both for arc-quenching and actuation. The switch arm may rotate in any plane round, or with, the head 3, or the insulator itself may be rotatable.
Patent GB-1386430-A (GB)
Title: Centrifugal aerators
IPC: C02F3/16
Filed: 1972-04-17
Abstract: 1386430 Aerating and circulating liquids HEINRICH KOPPERS GmbH 17 April 1972 [27 April 1971] 17519/72 Heading B1C A circulation aid 2 for coupling to the impeller 6 of a centrifugal surface aerator comprises a shaft 1 fitted with two or more arms each constituted by a pair of parallel plates having vanes extending therebetween and perpendicular to the plates, each vane having a leading edge and a trailing edge disposed in a plane perpendicular to the plates and inclined within the range between 15 to 30 degrees with respect to a tangent to the path followed by the mid point of the plane upon rotation of the shaft. The vanes may be plane or curved and inclined at the angle α of between 15 to 30 degrees. The circulation aid may be supported within a bearing 7.
Patent GB-1030546-A (GB)
Title: Improvements in or relating to the packaging of flat disc-like articles
Inventor: WEATHERUP WILLIAM DAVIDSON
IPC: B65D81/133
Filed: 1964-04-28
Abstract: 1,030,546. Supporting disc-like articles in containers. REED PAPER GROUP Ltd. April 21, 1965 [April 28, 1964]. No. 17602/64. Heading B8P. Flat disc-like articles are supported in a container by panels 1 foldably connected and having protuberances or recesses which engage the articles at places around their edges. The panels may have portions at different levels, Fig. 4 (not shown), to support articles of different diameters. The insert may be moulded from plastics.
Patent GB-278457-A (GB)
Title: Improved method of and apparatus for separating the fibre from the pulp of sisal or like leaves
IPC: D01B1/22
Filed: 1926-07-14
Abstract: 278,457. Hydraulic Engineering Co., Ltd., and Rutherfoord, E. D. July 14, 1926. Decorticating sisal &c.-A machine for separating the fibres from the pulp of sisal or like leaves comprises one or more pairs of corrugated feeding rolls 1, 1<1> and a series of pairs 2, 2<1>, 3, 3<1> of plain or corrugated crushing rolls, the clearance between which is adjustable and decreases towards the discharging end of the machine, and the speed of which is the same throughout. The rolls are mounted in the frame 7 and screws 8 are provided to adjust the bearings 6 of the upper rolls. The leaves are fed in singly or abreast by a conveyer 18. Guides 22 separate the leaves, and the juice falls away through perforated guide plates 19, which act as doctors for the lower rolls. Adjustable doctors 25 are provided for the upper rolls. The pairs of rolls are geared together and are driven from a gear 14 through gears 11, 12. When more than one pair of corrugated feeding rolls are employed the pitch of the corrugations of the first pair is coarser than that of the second pair. The machine may be mounted on a stationary or portable chassis in conjunction with a power unit.
Patent GB-530135-A (GB)
Title: Improvements relating to lifting and transporting trucks
IPC: B62B3/06
Filed: 1939-06-17
Abstract: 530,135. Hand trucks. BARKER, J., SIMPSON, A., CALVERLEY, H., and WILKINSON, F. W., (trading as DALE WELDING & ENGINEERING CO.). June 17, 1939, No. 17727. [Class 108 (i)] A hand truck with a platform that can be raised and lowered is provided with a catch for retaining the platform in its raised position and a tumbler which, on the platform being raised slightly further, moves the catch to an inoperative position to allow the platform to be lowered. The platform c is connected to the main frame by links b and is raised by means not shown, being retained in its raised position by a weighted catch d, a hook portion of which d<SP>2</SP> engages a spindle c<SP>1</SP> on which the tumbler e is pivoted. As shown in Fig. 3 the tumbler is engaged by a cross bar c<SP>2</SP> as the spindle c<SP>1</SP> falls into the recess, and the tumbler is pushed over its dead centre to the position shown in Fig. 4. When the operator next slightly raises the platform the tumbler depresses the catch d and the platform is free to be lowered. The tumbler is restored to its initial position by engagement with the rear face of the catch. In a modification the locking catch is reversed.
Patent GB-1147962-A (GB)
Title: Process for making a turnover at a fabric edge
Inventor: AUGUSTIN WERNER
IPC: A41D27/20
Filed: 1967-04-18
Abstract: 1,147,962. Finishing edges of non-metallic sheet material. W. AUGUSTIN. 18 April, 1967 [22 April, 1966], No. 17748/67. Heading B5K. [Also in Division A3] A turnover at a fabric edge as a preliminary to folding the fabric at the turnover and then hemstitching the turnover is made by securing to the back of the fabric a thin stiffening strip which is marked by a line of weakness, cutting the fabric adjacent the line of weakness and then turning over the thus cut edge of the fabric and of the strip about the line of weakness. To form a pocket in a pair of trousers made from a wool fabric 1, a stiffening strip 2 comprising a thin thermoplastic strip is hot-pressed on to the back of the fabric in the region in which a pocket is to be stitched thereto. Alternatively, the strip 2 may comprise a thin cotton fabric fixed to the fabric 1 by a special adhesive. Lines of weakness 2<SP>1</SP>, 2<SP>11</SP> are formed in the strip 2 prior to adhesion thereof to the fabric 1 to indicate the lines along which the fabric is to be folded. Small interruptions 2<SP>111</SP> are provided in the lines 2<SP>1</SP>, 2<SP>11</SP> to prevent slipping or shifting of the strip 2 on application to the fabric 1. After adhesion of the strip 2, a cut 3 with small cuts 4 perpendicular thereto is made through the fabric 1 and the strip 2 to form the pocket opening. The cuts 3, 4 in the strip 2 may be formed before the strip is secured to the fabric 1 or marking lines may be applied to the strip 2 to indicate the position of these cuts. The edges (5), (6), Fig. 4 (not shown), on both sides of the cut 3 are folded over inwardly along the lines 21, 2<SP>11</SP>. A pocket 7, Fig. 6, having parts 7<SP>1</SP>, 7<SP>11</SP> reinforced by strips 8, 9 is stitched to the folded edges (5), (6).
Patent GB-144900-A (GB)
Title: Improvements relating to vessels for measuring or containing liquids
IPC: A47G19/22
Filed: 1919-07-16
Abstract: 144,900. Callaway, J. T. July 16, 1919. Measures of capacity.-Glass measures or other vessels are constructed with a detachable foot portion secured to the body by a spigot joint A, C with an interposed rubber band D.
Patent GB-405872-A (GB)
Title: An improved container for brushes or combs
IPC: A45D24/08
Filed: 1933-06-22
Abstract: 405,872. Brush, comb, &c. cases. HOSKEN, L. E., Kingsway, Aldwick Road, Bognor Regis, Sussex. June 22, 1933, No. 17796. [Class 66.] In a container of the kind comprising a casing to hold some liquid and a toilet article such as a comb or a thin brush having a single row of bristles, a cover for said casing and means within the casing to remove excess liquid from the article on removal, the container comprises an outer casing A, and an inner casing D shaped to house a wiper pad C which surrounds the toilet article at the mouth of the container, and the inner casing D has means to maintain it in position in the outer casing and means to hold the wiper. When used for a comb 10 the container has a triangular cross section. Some liquid, e.g. hair lotion is poured into the casing A, and the casing D, and wiper C are inserted, the casing D closing up to grip the wiper. The shoulders 9 position the inner casing, while the projections 8 prevent withdrawal of the wiper with the comb. Upturned projections 7 on the inner casing D facilitate its removal. The cap B may be fitted with a washer 11 to prevent leakage, and may be formed integral with the toilet article. The washer 11 may be spring pressed against the comb.
Patent GB-586861-A (GB)
Title: Improvements in apparatus for recording sound on an endless band
Filed: 1944-09-19
Abstract: 586,861. Recording sound on films. ALLEN, H. H. Sept. 19, 1944, No. 17878. [Class 40 (ii)] In apparatus for cutting or embossing a sound record on a film or like strip in the form of an endless band, the recording head is arranged to be traversed rectilinearly across the band by feeding means such as a screw and is carried by a support of non-circular cross-section closely fitting a part of the recording head carriage and serving to prevent tilting of the head about the screw. In Fig. 1, 2 is a feed-screw driven through gearing for feeding the recording head across the record and 3 is a bar which acts in the manner described in Specification 544,760 to prevent pivotal movement of the head about screw 2. Bar 3 is formed with a right-triangular section as shown to take the whole weight of the head which is mounted on a lug 18 extending from a plate 16 secured to the nut 1 which is engaged by the screw. Nut 1 is recessed to fit bar 3 closely, plate 16 covering the recess to lock the head on the bar. Bar 3 may be rotated in its bearings to enable the inclination of the cutter to be varied and is eccentrically mounted in a bearing bush at one end so that by rotating the bush the distance between screw 2 and bar 3 may be adjusted. The other bearing of bar 3 has sufficient play to enable the bar to remain parallel to the screw after adjustment, the bar being held in position by nuts on its end. The nut 1 carries a pointer 20 for indicating by reference to a scale 21 on the support 22 the position of the cutter. Scale 21 may be graduated to indicate the time for which the apparatus has been running. Feed-screw 2 is provided with a handle to enable the recording head to be positioned manually. It is stated in the Provisional Specification that the plate 16 may be adjustable to take up wear.
Patent GB-1065825-A (GB)
Title: Protection of metal surfaces
Inventor: MILLER WILLIAM GRAEME LIVINGST
IPC: C25D5/44
Filed: 1963-05-07
Abstract: A method of protecting metal surfaces liable to chemical attack by an electrodeposition bath containing nickel salts or chromium salts prior to electrodepositing nickel and/or chromium upon them, in which the cleaned surface is both alkaline-etched and acid dipped and subsequently immersed in an acid 'coating' metal phosphate solution to form a thin electrically conductive adherent deposit of metal phosphate.  The alkaline etching is preferably followed by the acid dipping, and the surface may undergo these two treatments more than once.  The surface is preferably first polished, degreased and cleaned with an alkaline cleaning solution containing 1/2 -6ozs alkali per gallon by immersion therein for 1-10 mins. at 90 DEG -210 DEG F.  The alkaline etching solution may contain 2-10ozs/gall of a mixture of alkaline salt of sodium and potassium, the surface being etched therein for 15 secs. to 2 mins. at 120-180 DEG F. The acid may contain between 5% v/v and 30% v/v of nitric acid, and the surface is dipped therein for 15 secs. to 2 mins. at ambient temperature. The acid coating metal phosphate solution is preferably a nitrite-accelerated zinc phosphate solution of acid content between 0.5% and 6.0%.  The surface is preferably rinsed between each stage of the invention.
Patent GB-902330-A (GB)
Title: Inked printing ribbon for use in typewriters or the like and method of making the same
Inventor: JR WIRT LORD THOMPSON
IPC: B41J31/04
Filed: 1959-05-26
Abstract: 902,330. Ink ribbons. JAMES ASSOCIATES Inc., EDWIN F. May 26, 1959, No. 17949/59. Class 100 (4). [Also in Group IX] An inked ribbon 10 comprises warp and filling yarns 11, 12 at least one of which yarns has pre-set distortions 13 which are diminished during weaving but are reacquired afterwards to form cavities or pores to increase the ink capacity of the ribbon. Preferably, nylon or other continuous filaments are used but spun yarns can be used. The distortion of the filaments is by crimping or by heat-set twisting and preferably the distorted filaments 13 are used in the transverse filling yarns 12 while the longitudinal weft yarns are at least chiefly undistorted. U.S.A. Specifications 2,564,245, 2,575,838 and Re-issue 23,824 are referred to.
Patent GB-758922-A (GB)
Title: Improvements in or relating to scanning circuits
Inventor: BULL ERIC WILLIAM
IPC: H03K4/26
Filed: 1953-06-30
Abstract: 758,922. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 30. 1954 [June 30, 1953], No. 18078/53. Class 40 (6). The effect of stray capacitance and shunt resistance of cathode-ray tube deflection coils is compensated by adding to the deflection waveform the first and second derivatives of said waveform. In the circuit shown, a sawtooth control wave is fed to an amplifier 17 through a resistor 16 and through a double differentiator. The first differentiator comprises an amplifier 25 with resistive feed-back and a capacitive input circuit 23. To the resulting step wave output a saw-tooth component is added by providing a resistor 24. The second differentiator comprises a feedback amplifier 27 and a capacitor 28 and produces at its output a step wave with an initial pulse. The combined waveform applied to amplifier 17 is accordingly as shown in Fig. 2. The output of this amplifier is fed through a cathode-coupled phase splitter 12 to push-pull output valves 1, 2 feeding deflection coils 3, 4. The initial pulse portion of the input wave charges rapidly the self-capacitance of the coils and the step portion compensates for non- linearity due to the damping resistors across the coils. Negative feedback is applied from cathode resistors 18, 9 of valves 1, 2 directly and through a phase inverter 20 respectively to the input of valve 12.
Patent GB-284143-A (GB)
Title: Process for the manufacture of acetic acid
IPC: C07C51/02
Filed: 1927-07-07
Abstract: 284,143. Chemische Fabrik auf Aktien vorm. E. Schering. April 7, 1927, [Convention date]. Acetic acid is prepared by adding calcium acetate to a paste of gypsum in acetic acid as obtained by the reaction of sulphuric acid on calcium acetate while avoiding an excess of sulphuric acid. The process may be started by dissolving a small quantity of calcium acetate in sulphuric acid after which the requisite materials are added continuously. The paste may be drawn off by an overflow to a vacuum distillation apparatus provided with means for withdrawing the calcium sulphate which has been freed from acetic acid. Specification 7301/00 and 4976/10 'are referred to.
Patent GB-181912-A (GB)
Abstract: 181,912. Payne, W. C. April 28, 1921. Ashes, collecting ; dust shields.-A dust-plate 8 for kitchen ranges extends from the ash-box, up in front of the ash-pit opening, and past the bottom of the grate, and has side flanges 10 and a top flange 11 so as to provide an enclosed passage from the front of the fire to the ash-box. A foot 9 closes in the front part of the ash-box, and is supported on lugs 5. Projections 12 on the dust-plate engage lugs 13 on the front of the range. A cinder-sifter 6 may be supported on lugs 5 in the ash-box.