baber/WOPTO huggingface dataset:
Patent GB-1480569-A (GB)
Title: Packaging container
Inventor: JANDO U
IPC: B65D5/28
Filed: 1975-04-09
Abstract: 1480569 Packaging containers ZIRISTOR AB 9 April 1975 [16 April 1974] 14552/75 Heading B8P A packaging container formed of sheet packaging material comprises a tubular body of rectangular cross-section with means for closing the lower end, and an upper end closure panel 4 foldably extending from each side wall 1, 2, the panels 4 being connected together and being foldable to form a flat closure. A first pair of opposed panels 4 each has at its edge a marginal flap 13 which may be sealed together to form a fin when the panels 4 are folded flat, the fin being adapted to also fold down flat against the closed container end, and having at at least one end a lug 16 which is adapted to be folded against and bonded to the adjacent side wall 1, 2. As described the folding to close the upper end is facilitated by fold lines defining triangles above side walls 2. The or each lug is pasted down and may be provided with weakened tear lines (20) (Fig. 6, not shown). The flap provided with the or each lug may be of the same height as panel 4 so that, when folded down, it completely covers the end panel 4.
Patent GB-1300220-A (GB)
Title: Improvements in or relating to the production of fluosilicic acid
IPC: C01B33/10
Filed: 1970-03-25
Abstract: 1300220 Fluosilicic acid OSTERREICHISCHE STICKSTOFFWERK AG 25 March 1970 [8 March 1969] 14582/70 Heading C1A Fluosilicic acid of low phosphorous content is obtained from the fluorine containing waste gases, derived from crude phosphate digestion in the manufacture of superphosphate, by a process comprising dilution of the waste gases with about 8 to 12 times their volume of air, at a temperature of 90-100‹ C., separating sludge droplets and phosphate dust in a cyclone with a limiting particle size of at most 0À01 mm. and recovering the H 2 SiF 6  by washing the diluted waste gases with water.
Patent GB-1045597-A (GB)
Title: Improvements relating to gilled radiators
IPC: F28D1/053
Filed: 1964-04-08
Abstract: 1,045,597. Space heaters. ALUMINIUMUND METALLWARENFABRIK J. REIERT G.m.b.H. April 8, 1964 [April 18, 1963], No. 14601/64. Heading F4S. A radiator comprises vertical spaced apart riser tubes 3 to which gilled panels 5 are attached, said tubes being of elongated crosssection with their major dimension extending normal to the front of the radiator. The risers are formed by deforming circular tubing and the tube ends are provided with right-angled elbow bends 4, the ends of these bends remaining circular for joining to inlet and outlet pipes. The panels 5 are welded front and back to the risers and the whole is supported within a boxlike structure 7, Fig. 2 (not shown). Side plates 8 (Fig. 2) may also be provided with similar gills, and one or more pairs of gills 6 may be provided between neighbouring risers.
Patent GB-1075606-A (GB)
Title: Polymerisation method of butadiene
IPC: C08F136/06
Filed: 1965-04-06
Abstract: Butadiene is polymerized using a catalyst at between -30 DEG  and 150 DEG  C. under an inert atmosphere and in the presence of 0.5 to 50 parts by volume of a hydrocarbon solvent per part by volume of butadiene the catalyst being one prepared by bringing an aluminium halide into contact, at 0 DEG  to 150 DEG  C. under an inert atmosphere and in the presence of a hydrocarbon solvent which is liquid at room temperature, with a Group VIII metal peroxide which contains, per 1 gram of the peroxide, at least 0.1 milligram equivalent of active oxygen capable of oxidizing potassium iodide at room temperature. Specified metals are nickel, cobalt and iron.  The product has substantially all cis, 7-4 configuration.ALSO:A catalyst for the polymerisation of butadiene is prepared by treating an aluminium halide at 0 to 150 DEG C. under an inert atmosphere and in the presence of a hydrocarbon solvent which is liquid at room temperature, with a Group VIII metal peroxide which contains, per gram of the peroxide, at least 0.1 milligram equivalent of active oxygen capable of oxidising potassium iodide at room temperature. The metals specified are nickel, cobalt and iron.
Patent GB-706432-A (GB)
Title: Improvements in and relating to materials suitable for gaskets
IPC: C04B26/08
Filed: 1951-06-20
Abstract: A polymerizable composition comprises a finely divided copolymer of a vinyl halide, e.g. vinyl chloride, and a vinyl ester, e.g. vinyl acetate or propionate, dispersed in a liquid medium comprising diallyl phthalate, glycerol cyclohexyl maleate, a liquid chain-stopped reaction product of adipic acid, propylene glycol and coconut oil fatty acids and a polymerization catalyst. The composition when heated becomes hard and infusible.  Fillers, stabilizers and pigments such as silica, clays, calcium carbonate, litharge, lead carbonate, lead silicate, chlorinated paraffin, antimony oxide, lamp black, tin tetraphenyl and tin tetraethyl may be included in the compositions.  Specified catalysts are benzoyl peroxide, t-butyl hydroperoxide, cyclohexyl hydroperoxide and ascaridole.  The compositions are used in the manufacture of gaskets. Specifications 531,273 and 534,159 are referred to.
Patent GB-824036-A (GB)
Title: Improvements in magnetic amplifier circuits
Inventor: STEAGALL WILLIAM FRANCIS
IPC: H03K19/16
Filed: 1957-05-09
Abstract: 824,036. Magnetic amplifiers. SPERRY RAND CORPORATION. May 9, 1957, No. 14743/57. Class 40 (9). Pulses of one polarity from an alternating pulse source are applied to a winding on a magnetic core by way of a rectifier, a source of D.C. being connected to the winding to magnetize the core in an opposite sense during periods when the rectifier is cut-off, and an input signal being selectively applied to inhibit magnetization by the pulses of one polarity so as to inhibit an output signal derived from the reversal of magnetization by the D.C. source. Alternating current of square wave form as shown at A of Fig. 3 is applied to terminal 24 of Fig. 2 and during negative half-cycles energizes winding 21 of core 20 over rectifier D1 and resistor R2. During this half-cycle a rectifier D2 parallel to R2 is disconnected and a source of constant voltage +V is prevented from energizing the winding 21 over the highvalued resistor R1. During the next half-cycle of alternating current rectifier D1 is disconnected and the winding 21 is energized from the source +V over diode D2 to drive the core in the opposite direction. In the absence of a signal on terminal 25 of input winding 22 the alternating source and the source +V switch the core backwards and forwards between its saturated states and in response to switching by the source +V an output is induced in output winding 23 which over diode D4 energizes a load RL. If, however, during a negative halfcycle of the alternating source, the input winding is energized to prevent the core being switched by means of the waveform shown at C in Fig. 3, no output is produced in the following half-cycle as shown at B in Fig. 3. Should the input to winding 22 be greater in its effect than the magnetization produced by the source +V, a source of blocking pulses as shown at D in Fig. 3 is applied to terminal 27 of the output winding to prevent it being coupled to the input winding. Instead of using a separate load winding 23, the load may be connected in parallel with the winding 21 which has a high impedance when the core is switched by the source +V and therefore allows the load to shunt current, but has a low impedance in the half-cycle after an input to winding 22 and therefore shunts current away from the load which gives no significant output. This connection of the load is shown in Fig. 5 where the input winding is also dispensed with and a clamp circuit, comprising D.C. sources - E and - V with resistor R7 and rectifier D13, is connected to winding 21 over rectifier D11. An input pulse coincident with a negative half-cycle of the alternating source charges a capacitor C which unblocks rectifier D11 to hold the upper end of winding 21 at earth potential and prevent the core being switched.
Patent GB-709569-A (GB)
Title: Method of obtaining pulps usable in the paper-making or other industries, from wood or annual plants, and the pulps resulting therefrom
IPC: D21C3/18
Filed: 1951-06-21
Abstract: A cellulose-pulp suitable for making paper or cardboard is obtained from wood or annual plants by a process in which lignin and other non-cellulosic constituents of the raw material are rendered soluble by subjecting the material to a chlorination treatment with a chlorine-containing solution practically free from hydrochloric acid, and in which the hydrochloric acid, which is formed as chlorination proceeds, is destroyed by forming or adding hypochlorous acid in or to the chlorine solution and allowing it to react with the said hydrochloric acid, the hypochlorous acid thus serving as the chlorinating and pH regulating agent.  The hypochlorous acid may be produced by dissolving chlorine in water containing in suspension a weak alkali, such as a carbonate, hydrate, or other weak base, which by removing the hydrochloric acid formed together with hypochlorous acid by the action of water on the chlorine, permits that action to proceed until the desired proportion of hypochlorous acid has been formed.  The chlorinating solution may be obtained by mixing chlorine water with a solution containing hypochlorous acid and a chloride, this solution being separately prepared by dissolving chlorine in water containing a suspension of calcium carbonate or other carbonate, hydrate, or other weak base.  If desired, the chlorinating solution may be obtained in situ by mixing with the wood or other cellulosic material the calcium carbonate or other weakly alkaline substance and then bringing the material so treated into contact with gaseous chlorine,  If desired, the raw material may be first treated with a hot dilute alkali solution to remove resins and waxy constituents, and then subjected to the chlorinating treatment.  The chlorolignin which is formed may be removed by treatment with a weak alkaline lye.  The chlorination and subsequent alkali treatments may be repeated.
Patent GB-1211406-A (GB)
Title: Artificial roadstone for use in roads, airfield runways and the like
Inventor: RICHARDS DENNIS MAUNDER
IPC: E01C7/18
Filed: 1968-03-27
Abstract: 1,211,406. Artificial stone. ENGLISH CLAYS LOVERING POCHIN & CO. Ltd. 24 March, 1969 [27 March, 1968], No. 14798/68. Heading C1H. [Also in Division C3] Artificial roadstone for bituminous or concrete surfacing materials is made from a mixture of 40-90% granular siliceous aggregate, 10-60% hydraulic binder and 3-10% water by compacting under a pressure of ¢-4 long tons per square inch, hardening and crushing. The granular aggregate can be recycle fines from the crushing, a natural fine or ground sand or a siliceous rock, e.g. washed china clay waste sand or a mixture of pea gravel from washed china clay waste sand with basalt. The hydraulic binder consists of a mixture of finely divided silica, e.g. sand, silica flow and/or slate powder or basalt, with quicklime, hydrated lime or spent calcium carbide; Portland cement or alumina cement can be included in the binder.
Patent GB-1461291-A (GB)
Title: Respiratory gas conditioner
IPC: A61M15/00
Filed: 1974-04-03
Abstract: 1461291 Respiratory gas conditioner KOMBINAT MEDIZINUND LABORTECHNIK LEIPZIG VEB 3 April 1974 [3 April 1973] 14830/74 Heading A5T In a respiratory appliance for warming and humidifying respiratory air, comprising a casing 8 having an inlet 7 and an outlet 5, an evaporation body 2 in the casing, a heat source 1 located within the evaporation body 2, a sensor responsive to the temperature of the air at a patient connector connected to the outlet 5, for controlling the heating of the evaporation body and means for supplying a liquid to the external surface of the evaporation body, the external surface has one or more helical grooves and part of the external surface bears sealingly against the internal surface of the casing. The liquid which is fed through 6 by a dosing pump (15, Fig. 2 not shown) flows over the hot evaporation body and as a result, the respiratory air stream flowing from 7 to 5 is humidified and warmed. A device (16) along with a temperature sensor (18), the latter measuring the temperature of the air near the patient, controls the temperature of the evaporation body. The liquid collected at the bottom of the casing is recycled through the dosing pump (16). The evaporation body is made of a liquid-absorbent flexible or elastic material or is coated with such a material.
Patent GB-449977-A (GB)
Title: Improvements in or relating to advertising or other signs
IPC: G09F13/26
Filed: 1935-05-22
Abstract: 449,977. Discharge lamps. PEARSON (BIRMINGHAM), Ltd., J. R., 34, Porchester Street, and WOOD, H., 135, Orchard Road, Erdington, both in Birmingham. May 22, 1935, Nos. 14883 and 17275. [Class 39 (i)] [See also Group XVIII] A sign such as is used in cinema or theatre display, comprises a number of neon tubes each representing a letter or number mounted on a foundation so that the tubes are detachable and adjustable on the foundation and are movable relatively to each other, to obtain a ready change of sign and correct spacing ; contacts are provided on the foundation to enable a number of tubes to be connected in series so that as a group they may be connected to a transformer. Bronze rods 21 of any convenient cross-section are supported above and below two shelves 11, 12 forming with a closure 17 one foundation ; as shown in Fig. 1, two such assemblies are provided. The neon tubes 9 are carried by clips which can be snapped on the rods 21 in any position along the rods. The lower clips 23 each consist of two U-shaped parts relatively rotatable ; the upper clips may comprise two U-shaped parts spaced apart by strips 30, or clips such as used on the lower part may be used according to the letter to be mounted. Transformers 19 are housed between the shelves, and are connected to bus bars 33 supported by insulating plates 32, which also carry a number of strips 34 by which suitable electrical connections can be made ; similar strips 40 mounted above the shelf 11 also provide connection facilities. The plate 17 may be of insulating material, of polished metal to act as a reflector or it may be blackened. The tubes &c. are enclosed in a box 14 with glass front and drainage holes. A letter such as that shown in Fig. 3, has rearward extensions 28, 26, 25, which are covered with opaque paint so as not to interfere with the desired luminous part 27. To enable an unskilled operator to connect the tubes correctly, each tube or a number together is given a factor so that an aggregate can be connected in series to one transformer, which is given a corresponding aggregate factor. In modifications of the method of mounting the tubes on the foundation, the rods 21 may be slotted and clips may be adjustably fixed in the slots ; or the rods may have sockets or key-hole slots to receive clip supports; or strips of metal may be fixed to the edges of the shelves, the strips being upset along their lengths to provide holes into which clip supports are dropped. In another arrangement, clips 41, Fig. 7, alternate with screws 47 attached to strips 42 carried by the foundation ; clips 43, Fig. 6, carried by a slotted and cranked plate 45, are held by nuts to the screws 47 and with the clips 41 allow the relative mounting of the letters to give correct spacing. The bus bars may be replaced by individual contacts.
Patent GB-485958-A (GB)
Title: Improvements in and relating to mountings for dynamo-electric machines
IPC: F16H7/14
Filed: 1937-05-28
Abstract: 485,958. Belt - tensioning devices. BRITISH THOMSON-HOUSTON CO., Ltd. May 28, 1937, No. 14889. Convention date, May 28, 1936. Addition to 442,904. [Class 80 (i)] In mountings of the kind described in the parent Specification for dynamo-electric machines, a torsion rod 45 has one end non - rotatably mounted in one of the arms of the U-shaped base and the other secured to a toothed segment 44 in mesh with a second segment 48 carried by the stator 10. The segment 48 is formed upon one of a pair of supports 20 which provide a resilient support for the stator on the uprights of the base as described in Specification 438,578. The torsional stress in the rod may be adjusted by changing the meshing teeth of the segments, and hence slippage of the belt at starting may be obtained.
Patent GB-240214-A (GB)
Title: Improvements relating to gas and air mixing machines
IPC: F02M21/00
Filed: 1924-06-21
Abstract: 240,214. Docking, A., and Ritchie, Hart, & Co., Ltd. June 21. 1924. Fluid-actuated valves; seats. - In a device for supplying a mixture of gas and air, of the kind described in Specification 21847/06, the gas and air inlets 2, 3 are controlled by a slide valve 1 operated against a spring 5 by a diaphragm 4 subject on one side to suction in the chamber 6 and on the other side e to atmospheric pressure. A sliding plate 12 operated by a screw 13 controls the sizes of the inlet openings 2, 3 to vary the mixture.
Patent GB-991195-A (GB)
Title: A gear shaving machine
IPC: B23F23/12
Filed: 1962-07-03
Abstract: 991,195. Gear-finishing. F. HURTH, and H. HURTH. July 3, 1962 [Aug. 1, 1961], No. 15080/64. Divided out of 991,194. Heading B3K. A gear finishing machine comprises a resilient feed 38 of work or tool limited by a cam 27 engaging an integral part of the tool or work carrier 19. The tool 15 is rotated through change gears 17 by a motor 16 on an angularlyadjustable carrier 12. The work is carried on a table 23 adjustable about a pivot 22 to allow bevel gears to be shaved. The pivot is mounted on a slide 21 adjustable on the slide 19. The cam is rotated by a motor 29 which also rotates switch-operating discs 33, 34. The pressure of the spring 38 can be adjusted by screw-gearing 39, 40 and may be replaced by hydraulic means. The cam 27 is rotated at a fast rate to allow infeed and then slowly while cutting takes place. The cam then has a dwell followed by a rapid withdrawal portion. The cam may be oscillated instead of rotated continuously. In a modification, the slide 21, Fig. 4, carries an angularlyadjustable table 41, Fig. 5, on which a workslide 42 is traversable. The work 26 is carried on a table 44 which can be tilted during traverse by an adjustable bar 45 to provide crowning. The headstocks 24, 25 carrying the work may be mounted on an intermediate swivelling plate.
Patent GB-997358-A (GB)
Title: Improvements in or relating to pushbutton-operated quick-acting electric switch
IPC: H01H13/28
Filed: 1962-04-18
Abstract: 997,358. Snap-action switches. W. P. SCHMITT. April 18, 1962 [May 2, 1961], No. 15147/62. Heading H2B. A moving contact 22 is alternately engaged with fixed contacts 19 and 20 upon successive actuations of a retractive push button 40. The contact 22 is carried by a U-shaped member 18 pivoted diagonally across the switch casing 10 at opposite corners 16 and 17 of a square metal plate 14 integral with terminal 13. A tension spring 23 extends between the member 18 and a U-shaped yoke 26 arranged to rock in notches 28, 29 in the bottom of a frame member 27. The frame member 27 is itself pivoted to rock perpendicularly to the yoke 26 by means of legs 32, 33 urged into a groove 34 in the top of casing 10 and held therein by the reaction of spring 23 via yoke 26. The legs 32, 33 straddle the member 18 without interfering with its movement between contacts 19 and 20 (Figs. 7 and 14, not shown). The push button 40 is slotted to slide on plate 14 against a restoring spring 41, lugs 46, 47 limiting its outward movement. Cams 50 and 51 are provided on button 40, respectively above and below plate 14 and on the left and right sides of the button. When button 40 is depressed the cam 50 engages the upper part of leg 26a of yoke 26 and snaps the yoke and member 18 overcentre, where they remain when button 40 retracts. Owing to the diagonal arrangement of member 18, however, there is a sideways pull on spring 23 (Fig. 6, not shown) and this causes the frame member 27 to pivot in groove 34, carrying yoke 26 to the left as seen in the underplan of Fig. 3. On the next depression of button 40 the other cam 51 engages the lower part of leg 26b and snaps the yoke 26 (and member 18) back again, the sideways pull on spring 23 moving frame 27 and yoke 26 back to the positions shown in readiness for subsequent operation as before.
Patent GB-558349-A (GB)
Title: Improvements in or relating to padlocks or like cases
IPC: E05B67/02
Filed: 1942-10-29
Abstract: 558,349. Lock &c. casings; dowelling. PINSON, F. W. Oct. 29, 1942, No. 15220. [Classes 44 and 89 (ii)] [Also in Group XXII] The two parts 1, 2 of a lock &c. case are permanently connected by pins 7 pressed into sockets 6 formed on lugs 5 on the two parts. In another form, pins on one part are pressed into sockets in the other. The walls of the sockets may be milled or ribbed, so that the ribs will grip the pins. The two parts of the case may be formed by diecasting and mounting or pivot pins may be in two parts respectively carried by the two sections of the case.
Patent GB-501840-A (GB)
Title: Improvements in and relating to the removal of sulphur dioxides from gases
IPC: C01B17/60
Filed: 1937-06-01
Abstract: 501,840. Removing sulphur dioxide from gases; metal sulphites. BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS. June 1, 1937, No. 16222. Convention, date, March 24. [Classes 1 (ii) and 1 (iii)] Sulphur dioxide is removed from gaseous mixtures by absorbing it in an aqueous solution essentially comprising a soluble sulphite and a soluble bisulphite, the solution being then treated with a metal oxide capable of forming an insoluble Sulphite, the precipitated insoluble sulphite being removed and the solution being neutralized for treating fresh gaseous mixture. The aqueous solution may comprise the sulphites and bisulphites of one or more of the ,cations sodium, potassium, lithium and ammonium. Suitable metal oxides to precipitate the insoluble sulphite are those of calcium, magnesium, zinc, strontium, barium lead or cadmium. The insoluble sulphite may be discarded (e.g. in the case of using lime), collected as a valuable product or calcined to produce concentrated sulphur dioxide and metal oxide for re-use in the process. Waste gases containing sulphur dioxide are scrubbed in a scrubber 1 by means of an aqueous solution of sodium sulphite and bisulphite introduced through a distributer 4. The exhaust gases pass away through 3 while the solution collects in a sump 5, passing through a settling tank 7 in which suspended solids are removed and being pumped by a pump 9 through a proportioner 12 to a mixer 16 into which, zinc oxide is introduced from a container 18. The solution is fed from the lower end of the mixer 16 to the upper end of a mixer 22 and the mixture is then discharged into a settler 22 in which the greater part of the insoluble sulphite slurry is removed through a line 26 to a filter 28. The clear liquor having its original ratio of sulphite to bisulphite is pumped from the settler by a pump 30 through a line 32 to the scrubber 1. The insoluble sulphite sludge is filtered and washed in the continuous filter 28, the filtrate passing to the pump 30 and the solid being dried in the unit 34. The dried solid passes to an indirectly heated drum 39, sulphur dioxide being liberated and the solid metal oxide being returned to the container 18. Sulphate accumulating in the circulating solution by oxidation, absorption of sulphuric acid &c. may be removed by withdrawing a position of the solution passing from the settling tank 7, saturating it with a portion of the sulphur dioxide from the calciner 39 in a saturator 14 and treating the thus acidified solution with a bisulphite of a metal forming- an insoluble sulphate such as calcium bisulphite in an agitator 48. The resulting calcium sulphate precipitate is removed by means of a settler 53 and a filter 55, the clarified liquor being pumped through a line 59 to re-join the main flow passing to' the proportioner 12.