baber/WOPTO huggingface dataset:
Patent GB-1431894-A (GB)
Title: Oriented crystallisation of polymers
IPC: B29C48/30
Filed: 1973-06-26
Abstract: 1431894 Extruding apparatus for polymeric products with orientated core F C FRANK A KELLER and M R MACKLEY 26 June 1973 [26 June 1972] 29840/72 Headings B5A and B5B An extrudate, e.g. filament, of a crystallizable polymer having a linear or planar core of highly oriented and stable crystalline polymer within a matrix of the same polymer in a less oriented and stable form is formed by forcing molten polymer, e.g. polyethylene or polypropylene, through an extrusion outlet wherein one or more lines of uniaxial extension or planes of pure shear, or both exists in the polymer melt upstream of the outlet and the temperature and flow rate are selected so that continuous crystallization of more highly oriented polymer occurs along said line or lines of uniaxial extension or plane or planes of pure shear or both within the mass of molten polymer upstream of the outlet. The extrusion may take place through a pair of mutually opposed coaxial outlets 22 (Fig. 1) so that a line of uniaxial extension occurs along the common axis or if the outlets are slits a plane of shear is found in the symmetry plane of the extrudate. An apparatus in which the above method can be performed comprises a chamber, e.g. 16, to contain the molten polymer, a means, e.g. piston 12, for applying a desired pressure so as to force the polymer through an extrusion outlet fitted to the chamber, and an element fixed within the chamber, e.g. element 26, shown in Fig. 4, projecting towards the extrusion orifice, but spaced therefrom and symmetrical about a point or line of the closest approach of said element to the orifice so as to provide in the molten polymer flowing into the extrusion outlet a condition of uniaxial extension or pure shear from said point or line on the projecting element. The projecting element preferably provides a point on the axis of the extrusion outlet and preferably it curves uniformly about that point, e.g. the sphere 26 shown in Fig. 4. The effect desired by the present invention may also be obtained by supporting a gauze in front of the extrusion outlet (Fig. 5, not shown) when large pieces may be extruded, which pieces have many lines of uniaxial extension and planes of shear present in the polymer, producing many lines and planes of more crystalline polymer in a matrix of the same polymer in a less stable and less crystalline form.
Patent GB-382425-A (GB)
Title: Improved means for the repair of gas retorts
IPC: C10B29/06
Filed: 1931-10-28
Abstract: 382,425. Injectors. WEST, F. J., WEST, E., and WEST'S GAS IMPROVEMENT CO., Ltd., Albion Ironworks, Miles Platting, Manchester. Oct. 28, 1931, No. 29870. [Class 71.] Vertical retorts are repaired by spraying a liquid medium such as silica clay grouting on to the defective part by an air blast from a nozzle. The spraying head X contains an air nozzle a, and an annular space b to which the repair liquid is supplied through a pipe d from a container f, the air being fed through a pipe g. The repairing liquid may be supplied under pressure by closing the container f with a cap r and connecting a pipe s to a pressure air supply.
Patent GB-815370-A (GB)
Title: Improvements in or relating to means for controlling the flow of gas to a burner
Inventor: ROBINSON HENRY NORMAN
IPC: G05D23/12
Filed: 1955-10-19
Abstract: 815,370. Valves. MAIN Ltd., R. & A. Oct. 19, 1956 [Oct. 19, 1955], No. 29897/55. Class 135.  An interlocking device between the adjusting means of a thermostatically controlled valve for a gas burner and a gas cock controlling the supply of gas to that valve for preventing the gas cock from being turned on or off unless the thermostat has been set to a maximum gas supply position, comprises, Fig. 2, a plug valve 14, with a T-shaped passageway which controls the gas flow from a supply port 18 to a branch 12, leading to a pilot jet, and a port 17 leading to a gas cock 22, which controls the gas supply to a relay valve 46 which is actuated by a thermostatically controlled valve 24, and mounted on the control spindles of the valves 14, 22 and the thermostat are knobs with integral discs 32, 33, 34 respectively, having arcuate cut-away portions as shown in Fig. 3, in which the pilot valve and the gas cock are in the off position and the thermostat in the open position. The main gas cock with disc 33 can only be turned when the pilot valve with disc 32 is turned on so that the recess 37 is opposite the recess 36, also, the thermostat can only be adjusted when the gas cock 22 has been turned on so that the recess 35 is opposite the recess 38. Similarly, the gas cock can only be closed when the thermostat is in the maximum supply position and the pilot valve 14 can only be closed when the gas cock is turned off. In a modification, the outlet from the gas cock is controlled directly by the thermostatically controlled valve.
Patent GB-520581-A (GB)
Title: Improvements in and relating to the coating of metal with lead
IPC: C23C2/10
Filed: 1938-10-15
Abstract: 520,581. Coating metals by dipping; fluxes. ROBINSON, A. Oct. 15, 1938, No. 29905. [Class 82 (ii)] A process for coating a metal such as iron, copper, or brass with lead comprises cleaning the metal chemically, and if necessary mechanically, dipping it into a flux, and while still coated therewith immersing it in molten lead and retaining it therein until at least its surface has reached the temperature of the lead, after which it is withdrawn and cooled in oil..In the case of iron, the metal may be cleaned successively in solutions of caustic soda and hydrochloric acid, flux may consist of 40 per cent. of zinc chloride. 58 per cent. of ammonium chloride, and 2 per cent. of common salt with the addition if necessary of 2 - 5 per cent. of dextrin, starch, glucose, borax, or the like and the temperature of the lead bath may be 800 - 900‹F. Reference has been directed by the Comptroller to Specifications 7777/91, [Class 82], 107,285, 133,179, [both in Class 82 (ii)], 466,849, and 488,443.
Patent GB-906316-A (GB)
Title: Improvements in or relating to electrical batteries
IPC: H01M50/204
Filed: 1960-08-30
Abstract: 906,316. Batteries. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Aug. 30, 1960 [Sept. 8, 1959], No. 29921/60. Drawings to Specification. Class 53. A battery is assembled into its casing by fitting its component cells &c. into a reacting plaster foam before the foam has set. The casing is closed during the reaction and is subsequently sealed. As disclosed the battery has separate circuits joined to a connector. The foam may be polyethylene or polyurethane.
Patent GB-484211-A (GB)
Title: Improvements relating to explosion-proof enclosures for electric motors and the like
IPC: H02K9/24
Filed: 1936-11-03
Abstract: 484,211. Stuffing box substitutes. POOLE, R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 3, 1936, No. 29927. [Class 122 (v)] In an explosionproof enclosure for an electric motor or the like, flame propagation along the shaft is prevented by a labyrinth packing comprising intermeshing collars 6 .. 9 at least one of which is provided with radial flanges 10, the clearances between the collars being such as to permit passage of gas to the outside. The flanges may be integral with the collars or formed as separate rings or in the form of a spiral of ribbon or wire wound into a collar. The end faces of the collars may be formed with coaxial flanges. Specification 195,832, [Class 122 (v)], is referred to.
Patent GB-1472238-A (GB)
Title: Dihydroapovincaminic acid amide
IPC: C07D461/00
Filed: 1975-07-17
Abstract: 1472238 N - Methyl - 16,17 - dihydroapovincamide SYNTHELABO 17 July 1975 [16 June 1975] 30069/75 Addition to 1461300 Heading C2C [Also in Division A5] The novel compound N-methyl-16,17-dihydroapovincamide or a pharmaceutically acceptable acid addition salt thereof may be prepared by reacting 16,17-dihydroapovincaminic acid or a functional derivative thereof with methylamine and optionally forming a pharmaceutically acceptable acid addition salt thereof.
Patent GB-1344495-A (GB)
Title: Medical record system
IPC: G01N33/487
Filed: 1971-04-19
Abstract: 1344495 Index cards BECTON DICKINSON & CO 19 April 1971 [2 March 1970] 30124/72 Divided out of 1344494 Heading B6E [Also in Divisions G1 and G5] A data display system comprises a form 117  provided with a series of slots to hold a number of data cards 92. The data cards 92 have a scale 95 whereby a reading from a measuring device can be recorded, the cards 92 then being placed in sequence in the slots of the form 117. For example, the cards may record daily blood component readings and when arranged in overlapping sequence on the form 117 they create a graph. A clear plastics overlay 118 may be used, and the normal range of readings is marked by lines 119. The tabs 94 can be attached to blood containers &c. for identification purposes.
Patent GB-798212-A (GB)
Title: Improvements in or relating to means for controlling the level of a liquid in a container
Inventor: SMITH REGINALD COLIN
IPC: G05D9/12
Filed: 1954-10-20
Abstract: 798,212. Automatic liquid level control systems. BROADWELL ENGINEERING CO., Ltd. Oct. 18, 1955 [Oct. 20, 1954], No. 302 19/54 Class 38 (4). In a floatless type of liquid level control system in which an electric motor-driven pump is automatically controlled through an electromagnetic relay and a motor starter when the liquid reaches a predetermined level and means associated with the motor starter maintain the condition of the relay and hence the pump until the level has changed to a predetermined extent, alternating current is passed through the liquid and the relay is energized from an A.C. supply through a bridge rectifier. As shown, when the level of liquid in a metal container C rises to make contact with an electrode 6 a circuit is completed between electrodes 3 and 6 to energize a relay 10 from an A.C. source 1 through a transformer 4 and a rectifier 5. The consequent closing of relay contacts 11 starts an electric motor driven pump (not shown) which extracts liquid from the container, and the closing of contacts 7 associated with the motor starter ensures that extraction continues until the level falls below the lower end of an electrode 8. Electrode 3 may be replaced by the metal stem of the pump or the metal container itself. A resistor may be included in series with the supply to rectifier 5, or the spacing or sizes of the electrodes may be varied, to suit the conductivity of the liquid. The electrodes may be telescopic to facilitate selection of levels.
Patent GB-1458657-A (GB)
Title: Substituted biscyclohexanols
IPC: C07C27/00
Filed: 1975-07-18
Abstract: 1458657 Unsaturated polyesters BAYER AG 18 July 1975 [19 July 1974] 30237/75 Headings C3P and C3R [Also in Division C2] Example 6 describes a polyester composition which comprises: 50 parts of an unsaturated polyester prepared according to customary processes by polycondensation, under a nitrogen atmosphere at about 200‹ C., of 171À6 parts of maleic anhydride and 543À9 parts of 2,2- bis(3,5 - dimethyl - 4 - hydroxycyclohexyl)- propane, 50 parts of styrene and 0À005 parts of hydroquinone. The above unsaturated polyester composition is then mixed with benzoyl peroxide and the composition is poured between two glass plates and is cured, followed by heating.
Patent GB-601359-A (GB)
Title: Improvements in and relating to liquid hydrocarbon compositions
IPC: H01G4/22
Filed: 1945-11-13
Abstract: 601,359. Insulation. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 13, 1945, No. 30281. Convention date, Nov. 15, 1944. Drawings to Specification. [Class 36] A halogenated dielectric which is subject to slow decomposition in an electric field is mixed with from one to ten per cent of a compound of the ethylenic oxide type, e.g. chlorinated phenoxy ethylene oxide, to reduce the deleterious effects on electrical components. The dielectric may consist of chlorinated diphenyl and chlorinated benzene, as in Specification 394,776, trichlorbenzene being referred to. Examples of other protective compounds are phenyl or diphenyl ethylene oxide, phenoxy propylene oxide and their derivatives such as halogenated or fluorinated derivatives. The protective compound may be added to the original dielectric or at some stage of operation of the device to be protected, i.e. it may be added by manual or automatic means after an electric arc has occurred.
Patent GB-424511-A (GB)
Title: Mechanism of safety against theft
IPC: E05B37/12
Filed: 1933-11-01
Abstract: 424,511. Permutation locks. DESTINAY, L., 29, AllÚe des Sapins, Soisysous - Montmorency, Seine - et - Oise, France. Nov. 1, 1933, No. 30313. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 3, 1934.] [Class 44] A permutation mechanism consists of a central wheel 2 having large teeth 3 and small teeth 3<1> adapted to mesh with corresponding teeth on small pinions 9 when the latter have been correctly set by knobs thereon. Coaxial with each pinion 9 is a regular pinion 8 with which a spring-pressed pawl 5 engages and a washer 12 having a tooth 12<1> which co-operates with a pin 4 on the wheel 2 to provide a zero position for the pinion 9, this pinion being set by counting a predetermined number of clicks of the pawl 5 on the pinion 8 from the zero position ; the tooth is moved against the pin 4 when the wheel 2 is in its limiting clockwise position as determined by the tooth 3 abutting a projection 7 on the casing 1. The teeth of the pinion 8 are so arranged that when the pinion 9 is set correctly, the end of the pawl 5 moves into and out of the path of the pin 4 in such a way as to allow the pin to pass, but if incorrectly set, it gags. The combination may be changed by loosening a screw 11 and changing the relative positions of the pinion 9 and the washer 12, these being held when the screw is tightened by a projection on the washer engaging one of a number of indentations in the face of the pinion. A latch or locking member may be carried by the spindle 13 on which the wheel 2 is mounted.
Patent GB-254966-A (GB)
Title: Improvements relating to the production of motive fluid under pressure for power purposes
IPC: F23R3/00
Filed: 1925-12-01
Abstract: 254,966. Marks, E. C. R., (Gas Turbines, Ltd.). Dec. 1, 1925. Generating combustion products under pressure.-Apparatus for the production of a motive fluid under pressure for power purposes comprises an elongated ovate combustion chamber 2 lined with refractory material 5 into one end of which liquid or gaseous fuel is introduced under pressure by a burner 7 and air under pressure from a pipe 11, ignition being effected by any suitable device at 6. The opposite end of the combustion chamber is provided with a restricted outlet 14 leading into an expansion chamber 15 of greater cubical capacity than the combustion chamber. An expansible fluid such as air, aqueous vapour or water is delivered in the vicinity of the passage 14 to mix with the products of combustion as they enter the expansion chamber. The expansible fluid which is under pressure may be introduced at 24 or at 22 and pass into an annular chamber 19 before escaping at 20 into the expansion chamber. The gaseous mixture escapes through controllable apertures 23. The length of the combustion chamber is about three and a half times its major diameter and the passage 14 is formed in a body of material such as soapstone. The casing 16 of the expansion chamber has a covering of non-conducting material.
Patent GB-831062-A (GB)
Title: Improvements relating to the production of cellulose derivatives from viscose
Inventor: TOMS BRYAN ATKINSON
IPC: D01F2/30
Filed: 1956-10-05
Abstract: Cellulose xanthoacetic acid having a degree of substitution over 0.5, and soluble in aqueous acetone or ethanol solution, is made by neutralizing viscose of gamma value greater than 50 with dilute acetic acid containing sodium acetate, treating the neutralized viscose with sodium monochloracetate to form sodium cellulose xanthoacetate and treating this with dilute mineral acid to give cellulose xanthoacetic acid.  The viscose preferably has a gamma value above 75, suitably at least 100.  Threads, filaments and films may be made by treating viscose of gamma value over 100 as above, dissolving the cellulose xanthoacetic acid in acetone, and dry-spinning.  In an example, 25 parts of wood pulp are dispersed in 500 parts of 5N caustic soda (all parts are by weight).  After 15 mins. steeping at about 20 DEG  C., the slurry is filtered and the alkali cellulose is pressed, shredded and treated with 25 parts of carbon disulphide in a closed rotating vessel for 3 hours at about 20 DEG  C.  The product is dispersed in 500 parts of 2.5N caustic soda and the resulting suspension is shaken well for 3 hours at about 20 DEG  C. in a closed vessel and finally stored in a closed vessel at about 0 DEG  C. for 12 to 18 hours.  To the viscose of gamma value about 100 so obtained is then added a solution of 100 parts of glacial acetic acid and 100 parts of sodium acetate in 1000 parts of water till the mixture is neutral or faintly acid to litmus.  Sodium monochloroacetate is then dissolved in the neutralized viscose, sufficient of this salt being added to give a concentration of about 100 parts of salt per 1000 parts of solution.  After standing at about 20 DEG  C. for 12 to 18 hours, the entire solution is added to three times its volume of N/1 hydrochloric acid.  After stirring for one hour the precipitated cellulose xanthoacetic acid is filtered off, washed, dried to a water content of 25% by weight, and dissolved in acetone to give a spinning solution containing, for example, 15-25% by weight of cellulose xanthoacetic acid and 5-15% by weight of water. Cellulose xanthoacetic acid threads are insoluble in water but soluble in alkaline solutions, and are useful as scaffolding threads in making woven or knitted goods.  Specifications 231,800 and 831,065 are referred to.
Patent GB-866921-A (GB)
Title: Retractable landing gear for aircraft
IPC: B64C25/34
Filed: 1957-09-27
Abstract: 866,921. Aircraft undercarriages. CLEVE. LAND PNEUMATIC TOOL CO. Sept. 27, 1957 [Oct. 15, 1956], No. 30412/57. Class 4. An aircraft bogie-type undercarriage comprises a telescopic leg 10, 12 pivotally mounted at 13 in a wing for sideways retraction placing the leg in the wing and the bogie partly within a fuselage. The leg carries a lug 33 which connects through a universal joint 32 and a swivel joint 31 to a drag link 24 pivotally connected on an axis 26 to a further drag link 23. The upper end of link 23 is pivotally connected at 28 to a lug projecting radially from a torque shaft 19 mounted on an axis 22 in bearings on the aircraft structure. The shaft carries an arm 39 connected to a fluid pressure jack 34, operation of which rotates shaft 19 and, through the pivot 28, the link 23, to retract the undercarriage about pivots 13. The axis 26 is inclined to the plane containing the axes of pivot 28 and link 23 so that the drag links 23 and 24 will be forced to fold about pivot 26 during retraction of the undercarriage. The drag links are retained aligned to brace the undercarriage when lowered by a pair of folding arms 43, 43 pivoted respectively to shaft 19 and link 23. Arm 43 is extended by an arm 52 pivotally attached at its extremity to the piston rod of a jack 54 which is operated in conjunction with jack 34 during retraction. A spring box 54, co-axial with jack 49, is provided to permanently bias the arms 43, 44 into an aligned locking relationship. When retracted the bracing and retracting elements lie in close proximity to the leg 10, 12.
Patent GB-244097-A (GB)
Title: Improvements in and relating to speed control and frequency converter sets
IPC: H02J3/34
Filed: 1925-12-02
Abstract: 244,097. British Thomson-Houston Co., Ltd., (Assignees of Hull, J. I.). Dec. 6, 1924, [Convention date]. Alternating-current induction machines; rotary converters, and motor-generators.-For controlling the speed of an induction motor driving a load or forming one integer in a frequency-converting motor-generator set, the motor is concatenated with a regulating machine having a field-winding and means including a frequencychanger and means operable in accordance with the line frequency but independently of any other line condition are connected between the line and the field winding. In the form shown, the means consist in a synchronous motor-generator. The induction motor 1 works on the line 2 which also supplies the motor 9 driving the commutator regulating machine 8 concatenated with the machine 1 at 4. The field windings of the machine 8 are connected to brushes 18 - - 23 of a frequency changer 11 on the shaft of the motor 1 and thence, through a synchronous motorgenerator 12, 13 to the line 2. The brushes of each pair, e.g. 18 and 19, are connected to the ends of one phase of the regulating machine field winding and gear is provided for rocking the sets of brushes 18, 20, 22 and 19, 21, 23 in opposite directions to vary the volts of the regulating machine. The motor 1 is shown loaded with a synchronous machine 24 supplying a line 26 with frequency different from that on the line 2. The excitation of the machine 8 is determined by the frequency of the line 2 and the brush setting at 11 and is independent of changes in the line current or volts produced by changes in the operation of the motor 1 or by interchanges of power between the systems 26, 2 through the frequency-changing set 24, 1. The amount of power thus interchanged, when the frequency of either system 26, 2 varies from its normal value, may be kept within the capacity of the frequency-changing set by an appropriate setting of the brushes on the frequency changer 11. In the position shown, viz., with a pair of brushes, such as 22, 23, on the same commutator segment, the machine 8 gives no volts. By moving a set of brushes in one direction or the other, the machine may be made to give an increasing voltage in either direction, thereby causing the main machine 1 to operate at the frequency existing in the line 2 and with the desired motor or generator load at the speed demanded by the machine 24, which runs at a speed determined by the frequency in the mains 26. Specification 140,476 is referred to.
Patent GB-520405-A (GB)
Title: Improvements in, or relating to, fittings for suspending curtains and for analogous uses
IPC: A47H15/02
Filed: 1938-10-21
Abstract: 520,405. Suspending curtains. ROE, C. R. Oct. 21, 1938, Nos. 30458 and 34688. [Class 52 (v)] Curtain suspension means comprise a metal rail or track and runner devices of spherical, part-spherical, or roller-like form, and made of non-metallic material which will neither rust nor swell under the action of damp or moisture. As shown in Fig. 1, a tubular track a of metal or wood contains spherical glass beads d, d' from which the curtain supports c, c<SP>1</SP> are pivotally suspended. Cross-sections of modified forms of tracks and spherical or part-spherical beads are shown in Figs. 2, 3, 4, 5, and 7. Reference has been directed by the Comptroller to Specifications 11665/14, 320,179, [both in Class 52 (v)], and 403,847.