baber/WOPTO huggingface dataset:
Patent GB-1377185-A (GB)
Title: Fuel burners
IPC: F23D11/24
Filed: 1972-01-01
Abstract: 1377185 Fuel burner assemblies DEFENCE SECRETARY OF STATE FOR 1 Feb 1972 [2 Feb 1971] 3658/71 Heading F4T A fuel-burner assembly 22, particularly for a gas-turbine engine, comprises a main fuel nozzle 32, and a primary fuel-injector 36 having a duct 30 for receiving fuel and two or more fuel outlets 38, Fig. 4, communicating with duct 30, the whole of the primary fuel passing out of outlets 38 and impinging against a deflecting face 40, and the outlets 38 being arranged so that the distribution of primary fuel passing out of the burner has a number of locally-rich zones corresponding to the number of outlets 38. The assembly 22 is supported in a combustion chamber by an arm 20 having ducts 24, 26, for main and primary fuel respectively, communicating with ducts 28, 30 respectively. The exit of injector 36 preferably comprises two diametrically-opposed apertures 38 inclined in a direction downstream of the burner at an angle of 80 degrees to the burner-axis, the face 40 being in the form of a frusto-conical surface facing downstream and having an included angle of 70 degrees. In a modification, Fig. 5 (not shown), the primary injector 36 and deflecting face 40 are located downstream of the main nozzle 32. The arrangement of two apertures 38 and frusto-cone 40 results in a primaryfuel flow out of the burner substantially in the form of a cone having locally enriched zones aligned with the exits of apertures 38, such enriched zones being stated to prevent weak extinction whilst adequate turbine-deceleration decay-rates are maintained and anti-smoke requirements are met.
Patent GB-784585-A (GB)
Title: Improvements in or relating to devices for cleaning tubes
Inventor: REISS AUGUST
IPC: B08B9/04
Filed: 1955-02-08
Abstract: 784,585. Pipe-cleaning devices. REISS ENGINEERING CO., Ltd. Feb. 7, 1956 [Feb. 8, 1955], No. 3696/55. Class 99(2). [Also in Group XXIX] A flexible or rigid supply pipe 2 has a terminating part 5 comprising end portions 6, 7 parallel to and offset from each other, the portion 7 being connected to a spray nozzle 8. When the device is in use, cleaning fluid emanating from the nozzle impinges on the wall of the tube 1 to be cleaned and causes the nozzle initially to move into and then to be maintained in a position substantially coaxial with the tube. As shown, the part 5 is S-shaped, rigid, and connected to the pipe 2 by a coupling 3, the portions 6, 7 being offset relatively to each other by a distance equal to the radius of the tube 1. The cleaning fluid from the nozzle 8 is directed rearwardly and tends to propel the device forwards and in the direction of the arrow A ; alternatively, the fluid is directed forwardly of the device, or substantially perpendicularly to the wall of the tube. In a modification, the terminating part 15 is flexible and integral with the supply pipe 12 the end portion 16 of which is attached by clamps 14 to a support-base 19 ; the portion 17 is provided with a spray nozzle 18 carried on a member 21 slidable in a sleeve 20 mounted on the base ; the member 21 is held in an adjusted position by a screw 22. Antifriction rollers on the base facilitate movement of the base with respect to the tube 11. A1- ternatively, the member 21 is mounted on the base 19, and the sleeve is carried by the nozzle or the part 15.
Patent GB-678355-A (GB)
Title: Improvements relating to temperature control apparatus for insulated containers
IPC: F25B17/02
Filed: 1951-02-16
Abstract: 678,355. Refrigerating; heating by chemical action. STARK, V. Feb. 16, 1951, No. 3823/51. Classes 29 and 64(ii) The storage space 10 of a refrigerated chamber, vehicle or ship is cooled by platelike evaporators 27 supplied with liquid refrigerant from a storage container 11 through an expansion valve 24 controlled in response to the superheat in the evaporators by a thermal bulb 42, the vaporized refrigerant flowing to a storage container 33 for absorbent through a pipe 29 fitted with a control valve 31 responsive to a thermal bulb 41 located within the storage space. Liquid refrigerant flows from the container 11, which is readily replaceable, through a flexible pipe 17, a strainer 18, a safety-valve 21, a regulating valve 23, the expansion valve 24 and a flexible pipe 26 to the evaporators. The safety-valve 21 discharges through pipes 22, 32 to the container 33. The vapour conduit 29 includes a flexible part 30, a pressure gauge 34 and a back pressure valve 35 and joins the pipe 32. The container 33 has a safety-valve 39, an overflow valve 38, a liquid level indicator and a drain valve 40. The containers 11, 33 are located in a casing 12 in separate compartments joined by a trunk 19 through which pass the refrigerant supply and return pipes in heat exchange. The outside air first passes over the container 11 and then through the trunk 19 and over the container 33 to cool it. The top of the space 10 has a layer 59 of activated carbon to absorb refrigerant leakage and a vent 60 for the storage-space atmosphere is provided. The refrigerant may be ammonia, or propane or butane, and the absorbent, water or oil respectively. In the latter case some of the vaporized refrigerant may be diverted from the pipe 29 for use as fuel for driving vehicles or for heating. Valves 57, 58 allow the connection of further evaporator elements. Heating storage space. Refrigerant vapour from the top of the container 11 can pass through a valve 47 opened by a thermal bulb 48 in the storage space and through a pipe 49 to a heating element 50 which is also supplied by absorbent from the container 33 through a pipe 51 and a valve 52 controlled by a thermal bulb 53 in the storage space. The heat of absorption effects the heating which is stopped by the valves 47, 52 when the predetermined temperature is attained. If the supply of vapour from the container 11 be inadequate, further refrigerant may be bled off from the pipe 17 through a pipe 55 and a valve 56. The element 50 can be drained through a cock 61.
Patent GB-593758-A (GB)
Title: Machine for pressing grooves in pasteboard sheets
IPC: B26D3/08
Filed: 1945-02-15
Abstract: 593,758. Creasing pasteboard. JOHANSSON, A. K. A. Feb. 15, 1945, No. 3856. [Class 100 (ii)] In a machine for pressing grooves in pasteboard sheets comprising pairs of rollers in a row, one roller of each pair having a rib and the other a corresponding slot, guiding means being provided to give the sheets a bow shape between each pair of rollers, the grooves are finished by a second row of similar roller pairs, the guiding means being adapted to form such a deep bow that it is maintained after the sheet has passed the first row. As shown, two pairs of rollers 1, 2 and 3, 4, one behind the other, are used to form each groove, the rollers 1, 3 being freely mounted on shaft pins 6 carried by a slide 9 movable across the machine by a rack 14 and a pinion 13, and being fixed to chain wheels 19, 20 driven by a chain 18 from a chain wheel 17 splined on a central driving shaft 16. The rollers 2, 4 are similarly mounted, and may be adjusted vertically by turning the stationary shaft pins 6a which have eccentric portions 38, Fig. 3, carrying the rollers ; the upper rollers 1, 3 are capable of finer adjustment having a similar eccentric shaft pin provided with a fork 38a, whose arms hold an eccentric disc 39. In front of the rollers 1, 2, 3, 4, two shafts 32, 33 carry a number of small rollers 34, 35, the rollers 35 being substantially in the planes of the rollers 1, 2, 3, 4 and the rollers 34 being between them and slightly overlapping the rollers 35 so that a sheet 5, 5a fed through the rollers 34, 35 into the machine is given a bow shape. The shaft 32 is adjustable vertically. The lower slotted rollers 2, 4 may be in the form of two discs, the distance between which is adjustable.
Patent GB-1461305-A (GB)
Title: Slide projector
IPC: G03B23/00
Filed: 1974-01-28
Abstract: 1461305 Optical projection apparatus GAF CORP 28 Jan 1974 [29 Jan 1973] 03867/74 Heading G2J A slide projector in which slides contained in a magazine are moved, to and from a projection position by a slide carrier has an indexing mechanism comprising a lever 25 which is slidably and pivotally mounted on the projector and carries both a pawl 26 for engaging the teeth of a rack on the magazine and a member 27 for engaging in a camway 28 formed in the base member 17 of the slide carrier; as the slide carrier is moved transversely of the magazine, the camway 28 co-operates with the member 27 on the lever to move the lever and advance the magazine. Fig. 3 shows the lever 25 and base 17 of the slide carrier when a slide is in the projection position. A fixed mounting pin 30 engages a slot 29 in the lever and as the slide carrier is withdrawn (to the right) the lever 25 moves the length of the slot 29, thus disengaging pawl 26 from the magazine rack. When the carrier is fully withdrawn Fig. 5 a tab 35 on the lever engages an upstanding lug 34 on the carrier, causing the lever to pivot clockwise about pin 30 and the member 27, which engages camway 28, to move along a slope 33. As the carrier is inserted (to the left) the lever first moves the length of slot 29, bringing the pawl 26 into engagement with the next position of the magazine rack, and is then caused to pivot anticlockwise, by member 27 moving along slope 33 to advance the magazine one step. In a further embodiment Fig. 8 for both forward and reverse feed the camway is provided with two slopes, 44, 45, the direction in which the lever pivots being determined by the engagement of an adjustable bracket 46 with projections 41, 42 on the lever. In alternative embodiments the camway has carved slots to cause the pivotal movement of the lever and finally the lever may be positioned below the slide carrier and one upstanding lug serves both as the member received in the camway and as the pawl engaging the rack.
Patent GB-588405-A (GB)
Title: Improvements in or relating to the grinding of drill bits
IPC: B24B3/33
Filed: 1945-02-16
Abstract: 588,405. Grinding drill bits. ELECTRICALS, Ltd., McPETRIE, A., and KIRKUP, A. L. Feb. 16, 1945, No. 3928. [Class 60] A drill, bit holder, for use in grinding drill bits with two or more legs, comprises two bit holders proper, one adapted to hold the bit for grinding its outer cutting edges and the other for grinding its inner edges. A shaft 15, secured in a bracket 13 on a base-plate 14, has two socket members 16a, 16b, rockably mounted on each of its extending ends, each member having an inclined socket 21 to hold the shank 22 of a drill bit 23. For grinding its outer cutting edge 28 the bit is placed in the longer socket member 16a and held, against the action of a spring 18 on the shaft 15, against one face of a grinding-wheel 12 ; the bit being turned in its socket through 180 degrees to grind the other outer edge 28. For grinding the inner cutting or clearance edges 29, the bit is held in the shorter socket member 16b and similarly held against the other face of the grinding- wheel 12, one of the limbs of the bit being entirely clear of the circumference of the grinding-wheel. A stop gauge may be provided to ensure even grinding of both legs of the bit. When grinding cutting edges to an angle to the side faces, the socket holders or the holder as a whole may be set at an angle to the grinding-wheel or the axis of the socket in the holder may be inclined relative to the vertical plane containing the axes of the supporting shaft and the grinding-wheel. A slotted sleeve 31 may be inserted in the socket 21 to hold the bit when it has been considerably worn down. For curved clearance surfaces the holder may be mounted so as to be movable angularly about an axis at an angle to the supporting shaft. Two grinding-wheels on either end of a driven shaft 11 may be fitted.
Patent GB-1481942-A (GB)
Title: Injection blow moulding of container open at both ends
IPC: B29C49/00
Filed: 1976-02-02
Abstract: 1481942 Injection blow moulding RAINVILLE CO Inc 2 Feb 1976 03928/76 Heading B5A A container 45 with openings at both ends is injection blow moulded on a core rod 22 which extends the full length of the injection mould 24 and the blow mould 26. The core rod is gripped at both ends by the moulds and has a movable portion which exposes an outlet for blowing fluid. Grooves 52 and 54 on the core rod prevent the parison shrinking due to cooling in transit from mould to mould, and thereby effect a stretching action so that the walls of the parison become thinner on cooling. Three core rods are mounted on a rotary turret 20 (Fig. 1, not shown) and are indexed in 120 degree step through injection, blow, and stripping stations. The necks of the container may have external screw threads.
Patent GB-144251-A (GB)
Title: Improved magneto electric ignition apparatus for explosion engines
IPC: F02P5/02
Filed: 1920-02-09
Abstract: 144,251. Heerd, R. E. May 30, 1919, [Convention date]. Rotary interrupters for use in magneto-electric ignition are provided with a timing-adjustment consisting of a worm c gearing with a worm-wheel a in the form of a ring carrying the interrupter cams a<1>, a<2>.
Patent GB-473852-A (GB)
Title: An improved door latch
IPC: E05C19/02
Filed: 1937-02-05
Abstract: 473,852. Double - door fastenings. UNERMAN & SONS, Ltd., J., and UNERMAN, J. Feb. 5, 1937, No. 4105/36. [Class 44] In fastenings for double doors of wardrobes, cupboards, &c. in which closure of the second closed door effects fastening of the first closed door a spring-pressed slidably mounted catch bolt with beveled or rounded end engaged by a catch member on the second door is pressed into locking engagement with a recess or opening in a catch member on the second door, and yielding spring-catch means are provided to hold the first door closed prior to closing the second door, which may itself be held closed by a yielding catch. As shown, projecting catch members 7, 8 on the doors 1, 2 are adapted to project into recesses 5, 6 in a fixed casing 12 housing spring-pressed sliding catches 14, 16 and a spring-pressed locking bolt 10. When door 1 is closed a recess or aperture in member 7 is engaged by catch 14 to hold the door yieldingly closed. Whilst door 2 is open, the nose of bolt 10 projects into recess 6 and its tail is clear of recess 5. Closure of door 2 causes member 8 to press back bolt 10 so that its tail projects into recess 5 into engagement with an aperture in member 7 to secure door 1 in closed position. At the same time the catch 16 engages in member 8 to retain door 2 yieldingly closed. Modifications are described in which the catch members 14, 16 are mounted in and project outwardly from the casing or part of the casing in which the bolt 10 is mounted, one form using coiled springs as in Fig. 2, the other using metal strip or plate springs. In another modification, the catch 16 is omitted and the nose of bolt 10 is adapted to engage an aperture in member 8, so as to act as a catch for door 2 in addition to securing door 1. In another form, both catches 14, 16 are omitted, and a single bolt, normally held in a central position by opposed springs, has both ends projecting into recesses 5, 6 and adapted to act as a yielding catch for both doors, engagement with member 8 preventing disengagement from member 7. In a further form, catches 14, 16 are mounted in the members 7, 8 and engage behind a small casing in which bolt 10 is mounted. Fig. 17 shows a form in which one catch 56 is pivotally mounted and the bolt 57 is connected thereto at 60 by pivot or pin-and-slot connection. Fig. 18 shows the casing provided with projections 63 from which the catches project, the parts 63 entering recesses in the doors.
Patent GB-1087767-A (GB)
Title: Improvements in and relating to foundry moulding sand compositions
Inventor: STARR CLIVE
IPC: B22C1/16
Filed: 1965-01-29
Abstract: A foundry moulding-sand composition comprises (a) a particulate refractory material, (b) aqueous sodium silicate solution, (c) 0.25-5% wt. glucose based on weight of (a), and (d) a solid mild oxidizing agent.  (a) may be e.g. silica, zircon, chrome or olivine sand or a sillimanite. In (b), the weight ratio of SiO2 to Na2O is preferably 2.0-3.3, viscosity being 84-120 DEG  Twaddle; the weight of the sodium silicate used is from 1% to less than 5% based on weight of (a).  (c) may be produced in situ during hot setting or casting by the action of heat on a polysaccharide containing an anhydroglucose unit, e.g. dextrin or sucrose in the presence of MnO2 catalyst.  (d) is inert towards the sodium silicate, and at temperatures met during casting completely decomposes the glucose, and may be MnO2 or Fe2O3, and preferably is not more than 50% by weight of the glucose. Additionally may be present finely divided CaCO3 not exceeding 50% by weight of the glucose. The compositions may be set by heat and/or CO2 or SO2. After the metal-casting operation the moulds and cores are completely broken down to small friable aggregate by vibration in conventional manner.
Patent GB-1463783-A (GB)
Title: Procedure for producing alternating copolymers of dienes and maleic acid anhydride
IPC: C08F236/04
Filed: 1975-01-31
Abstract: 1463783 Diene-maleic anhydride alternating copolymers NESTE OY 31 Jan 1975 [1 Feb 1974] 4230/75 Heading C3P Alternating diene/maleic anhydride copolymers are prepared by copolymerizing a dienecontaining hydrocarbon mixture and maleic anhydride in a solvent at elevated temperature in the presence of a free radical catalyst, and precipitating the copolymer from the solution after termination of the polymerization, the diene-containing mixture comprising alkanes, alkenes, aromatics and alkadienes and being prepared by pyrolysis of hydrocarbons and the polymerization being carried out so that the alkane and inert alkene fractions having boiling points lower than the desired polymerization temperature are continuously allowed to distil off from the reaction mixture in order to limit the temperature. In examples copolymerization is effected in the presence of methyl ethyl ketone peroxide and cobalt naphthenate and the product recovered by pouring the solution into toluene.
Patent GB-749288-A (GB)
Title: Improvements in or relating to the manufacture of insulated electric cables
Inventor: KING ALBERT
IPC: H01B13/30
Filed: 1954-02-12
Abstract: 749,288. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 11, 1955 [Feb. 12, 1954], No. 4258/54. Class 36. An impregnated cable is made by drawing one or more insulated conductors into a metal tube in which they are a loose fit, closing the ends of the tube, drying the core under vacuum with the aid of a high-frequency field applied to the dielectric, impregnating the dried core and thereafter reducing the cross-section of the tube to form a sheath for the impregnated core. During drying the tube may be run on to a drum or in a pan or may be in a straight tubular jacket, any of which are heated by steam or otherwise. Alternatively, the tube and/or one or more of the conductors may be heated by the passage of heavy, low-voltage direct current from a source of supply that is isolated from the source of high-frequency supply by chokes which offer high impedance to the high-frequency current. The high-frequency field may be applied to the dielectric of a single core cable by coupling a high-frequency generator between the conductor and tube, or to the dielectric of a multi-core cable by coupling the generator between each two conductors in turn. Alternatively the high-frequency field may be applied to the screened dielectric of a multi-core cable either by means of a number of generators, one generator being connected across each conductor and the screen surrounding it, or by means of a multi-phase generator, the output terminals of which are respectively coupled to the respective conductors. The reduction in cross-section of the tube may be effected by swaging and/or rolling and/or drawing, pressure release valves being provided at the rear end of the tube to permit the escape of surplus impregnant. Alternatively, the tube may be passed through a group of fluting rolls which form longitudinally or helically extending flutes in the wall of the tube.
Patent GB-1040972-A (GB)
Title: Improvements in or relating to the recovery of o-carbamyl-d-serine
IPC: C12P13/04
Filed: 1965-02-01
Abstract: O-Carbamyl-D-serine is produced by cultivating the organism Streptomyces orchidaceous in an aqueous nutrient cultivation medium, adjusting the pH of the medium to from 2 to 5, passing the medium through a cation-exchange resin to adsorb cycloserine, adjusting the pH of the effluent to from 4 to 6.5, concentrating the effluent and cooling the concentrated effluent at a temperature and for a time sufficient to crystallize O-carbamyl-D-serine from the effluent. This process is generally applicable to the recovery of O-carbamyl-D-serine when in admixture with cycloserine in an aqueous solution.  Reference has been directed by the Comptroller to Specification 775,946.
Patent GB-1178307-A (GB)
Title: Improvements in or relating to an Auto-Sterile Article and its method for Obtention.
IPC: D06M16/00
Filed: 1967-01-27
Abstract: 1,178,307. Sterile keratinous articles. SEMI S.A. 27 Jan., 1967 [1 Feb., 1966], No. 4291/67. Heading A5E. A process for the production of an autosterile article containing keratin, comprises disrupting disulphide or cystine bonds of the keratin to provide sulphdryl groups by treating the article with a solution of ammonium thioglycollate, sodium lauryl sulphate, sodium sulphide, tannin, a chromium or aluminium salt, ammonium hydroxide, or alkali metal or alkaline earth metal hydroxide, and substituting metal ions for the hydrogen ions of the sulphydryl groups, the metal being Ag, Bi, Cu or Hg, by treating with a solution of a salt of the said metal. The treatment with the metal salt may comprise conversion into metal hydroxide and/or oxide by the action of an alkaline solution, followed by reduction (e.g. with formaldehyde) or use of a peroxide. Articles specified are brushes and fabrics used as dressings.
Patent GB-178076-A (GB)
Title: Punching machines for plates
IPC: B21D22/00
Filed: 1922-02-14
Abstract: 178,076. Maschinenfabrik Schiess Akt.-Ges. April 15, 1921, [Convention date]. Punching.-A punch bolster c is pressed against the plate i while it is being punched, but is lowered during the return of the punch b to prevent the burr from hindering movement of the plate. The bolster may be moved by a shaft d, which is oscillated from the punchoperating means, and a knuckle block f, held in place by a pin e and pivoted links h. The wads fall through a passage k, m.