baber/WOPTO huggingface dataset:
Patent GB-1401931-A (GB)
Title: Pulp insulation of electrical conductors
IPC: H01B13/12
Filed: 1973-07-19
Abstract: 1401931 Coating wires INTERNATIONAL STANDARD ELECTRIC CORP 19 July 1973 [24 July 1972] 34459/73 Heading D1L [Also in Division H1] An elongated electrical conductor e.g. a wire, is insulated by depositing pulp fibres thereon from a slurry and passing the coated conductor through a rotating die for wrapping the fibres around the conductor. The conductor may be coated with adhesive prior to deposition of the slurry or an adhesive may be included in the latter. The fibre coated insulator may be overcoated e.g. with an acrylic latex. In the embodiment shown wire is taken from roller 1, and guided by rolls 2, 3 and 4, to an adhesive coating station 5, from where it passes to a slurry-applying station consisting of a slurry dispensing nozzle 8, a slurry reservoir 9, a mixer 10, a pump 11, and an excess recovery zone 12. After application of the slurry the wire passes through squeeze rollers 14, and via feed rollers 15, through rotating die 16 powered by motor 17, and speed control unit 18. The slurry coated wire then passes through guide rollers 19, which damp the vibrations produce therein by the rotating die 16, through a coating bath 20 of an acrylic adhesive and subsequently through a tunnel drier 21, heated by hot air, before being collected into rolls by driven take-up roller 22.
Patent GB-1357194-A (GB)
Title: Process for the strengthening of glass objects
IPC: C03C21/00
Filed: 1971-07-22
Abstract: 1357194 Strengthening glass KOMBINAT TECHNISCHES GLAS ILMENAU VEB 22 July 1971 34467/71 Heading C1M Glass is strengthened by exchange of alkali metal ions from surface regions by larger alkali metal ions from an ion source at temperatures at or below the transformation point of the glass and in an electric field, at least the cathode space of the ion source containing a compound selected from potassium bifluoride; potassium fluoride; sodium fluoride; potassium boron trifluoride; sodium boron trifluoride or fine potassium dihydrogen phosphate; sodium dihydrogen phosphate; potassium metaphosphate; sodium metaphosphate and potassium hydrogen sulphate. The preferred ion source is a fused potassium nitrate bath and the concentration of the added compound is between 0À25 and 7À5% by weight. In examples, vessels and tubes of glasses within the following ranges in percentages by weight were treated: SiO 2  75À6-80À9; B 2 O 3  7-12À4; Al 2 O 3  2À3-5À1; BaO 0 or 3À7; CaO 0À2-1À2; MgO 0 or 0À1; K 2 O 0-1À2; Na 2 O 3À5-6À3. In one of the examples the passage of current was without reverse of polarity but in two examples, the polarity was reversed.
Patent GB-781365-A (GB)
Title: Method and apparatus for conditioning tobacco
Inventor: ROWELL LORNE ARCHIBALD
IPC: A24B3/02
Filed: 1955-12-02
Abstract: 781,365. Treating tobacco. IMPERIAL TOBACCO CO. OF CANADA, Ltd. Dec. 2, 1955, No. 34566/55. Class 130. Conditioned air in a heat-insulated chamber 1 is caused to pass through compressed tobacco 6 by creating a pressure differential between the chamber interior and a hollow perforated probe 8 in the tobacco. A vent 5 holds the chamber 1 at atmospheric pressure, whilst a multi-stage fan 16 has its branched inlet pipe 19 connected to probes 8 and its outlet pipe 27 to a header 28 through branches 29 of which air conditioned by steam and water sprays 31, 36 respectively is re-delivered to the chamber. The steam supply is controlled by a valve 35 and by a valve 33 actuated by a temperature-responsive element 32, whilst valves 38, 40 control the supply of water and of steam branched off to atomize it. Header and chamber drains 42, 43 are provided, and a hinged or vertically slidable chamber door 4. The tobacco 6 is in piles taken from bales or hogsheads and each pile has its top covered by a flexible cover 11 so that the air is forced to pass through between the tobacco layers, extensible and flexible collars 20, 14 respectively between the probe and the pipe 19 and an extensible collar 9 between the probe and cover 11 allowing for slumping of the tobacco during treatment.
Patent GB-958037-A (GB)
Title: Improvements in or relating to copyboards for photographic copying apparatus
IPC: G03B27/16
Filed: 1960-10-10
Abstract: 958,037. Photographic copyboards. J. FENTON. Jan. 10, 1962 [Oct. 10, 1960],No. 34650/60. Heading G2A. A photographic copyboard comprises a casing having an opening in its wall covered by lightdiffusing means such as an opal plastic sheet 32 over which a document or drawing can be detachably held, tubular fluorescent lamp 15 disposed parallel to each other within the casing behind the light-diffusing means and arranged adjacent to each other to form an extended light source, and adjustable masking means formed by two pairs of blinds, the two pairs being adjustable in directions at right angles. Preferably the blinds are spring blinds operable by pulleys and cables from outside the casing so as to maintain the edges of each of the blinds of a pair parallel and at right angles to those of the other pair, and one pair of blinds is arranged on each side of the diffusing sheet 32. A reflector plate is located behind the fluorescent lamps. The document may be held flat between two sheets of glass mounted on a frame printable from a position overlying the sheet 32 to an inclined loading position (Fig. 4, not shown). Specification 958,038 is referred to.
Patent GB-840035-A (GB)
Title: Improvements in or relating to electrical circuits such as automatic volume control circuits
Inventor: ERATH LOUIS WILBUR
IPC: H03G11/04
Filed: 1956-11-13
Abstract: 840,035. Automatic volume control. DRESSER INDUSTRIES Inc. Nov. 13, 1956, No. 34681/56. Class 40 (4). An automatic volume control circuit comprises two diodes or other unilaterally conductive devices coupled in parallel across a signal path and controlled in dependence upon the output signal of the path so as to vary their conductivity, a sensitive biasing circuit being provided for the cathode of one device and the anode of the other. In the Figure, two diodes 11, 14 are connected reversely in shunt with the input of an amplifier 4 in series with by-pass capacitors 35, 36. One diode is biased from the B+ supply through resistor 28 and resistor 30 and the other is biased through resistor 28, 34 and 31. The centre point of a potentiometer 20, 21 is connected through a resistor 24 to the opposite electrodes of the diodes, the arrangement being such that an equal bias is applied to each diode, rendering them non-conducting or just conducting. In the latter event resistors 20 and 21 may be omitted. An output from the amplifier is applied through transformer 48 to a full-wave rectifier 52, 53 and the output from this rectifier is applied to the base of a transistor 40 to vary the shunting effect of the transistor on the bias resistor 34. An increase in output on the amplifier causes the resistance of the transistor to decrease and accordingly the bias on the diodes to decrease so as to cause the input to the amplifier to remain more nearly constant. The time constant of the rise and decay of the control voltage may be varied by varying a resistor 44 and a capacitor 45 respectively. In an alternative embodiment (Fig. 2, not shown) the transistor is omitted and the output from the rectifier is applied directly across resistor 34. In this case the rectifier output may exceed the bias on the diodes so that they are rendered more conducting than is possible in the Fig. 1 arrangement. It is further stated that the output from the rectifier or the transistor in Fig. 1 could be connected in series with resistor 34 and also that the thermionic diodes could be replaced by semi-conductor diodes.
Patent GB-1016595-A (GB)
Title: Improvements in or relating to blast gas heating apparatus
IPC: C21B9/10
Filed: 1962-09-11
Abstract: 1,016,595. Regenerative air heaters. JONES & LAUGHLIN STEEL CORPORATION. Sept. 11, 1962 [Sept. 21, 1961], No. 34709/62. Headings F4B and F4K. A regenerative air heating stove 1 comprises a vertical elongated regenerative chamber 5 connected at its upper end with an unobstructed columnar combustion chamber 4 having an outer wall 2, a plurality of premixing gas burners 6, 7 set in the outer wall one above the other into which combustion gas is supplied at right angles to combustion air, each burner being positioned to direct a flame transversely of the combustion chamber. Each burner has means 12 for introducing gas radially of the burner and means 11 for introducing combustion air axially of the burner. Premixing the combustion gases in this way produces a whirling turbulent flame which is introduced transversely of the combustion chamber thus inhibiting the formation of standing waves which cause the pulsation effect sometimes found in regenerative air heating stoves.
Patent GB-1387309-A (GB)
Title: Catalytic composition and reforming processes employing same
IPC: C10G35/095
Filed: 1972-07-25
Abstract: 1387309 Reforming catalysts; catalytic reactions and regenerations STANDARD OIL CO 25 July 1972 34709/72 Headings B1E and B1F [Also in Division C5] Catalysts comprise a Group VIII noble metal, an absorbent, refractory, inorganic oxide and mordenite having a silica: alumina ratio of at least 19:1. Examples describe platinum/chlorine/alumina/mordenite catalysts. The catalysts may be used in the tail-reactor (20) of a reformer (Fig. 1), the reactors (8, 12 and 16) containing a conventional platinum/chlorine/alumina catalyst. The reformer also comprises a swing reactor (not shown) for use when the catalyst in or of the other reactors is being regenerated. The swing reactor may contain the conventional catalyst or preferably the mordenite-containing catalyst of the invention. The feed stock may be a naphtha.
Patent GB-1183995-A (GB)
Title: Optical Borate Glass
Inventor: HEINDORF WOLFGANG
IPC: C03C3/155
Filed: 1967-07-28
Abstract: 1,183,995. Borate glass composition. JENAER GLASWERK SCHOTT & GEN., JENA, VEB. 28 July, 1967, No. 34727/67. Heading C1M. An optical borate glass composition for producing glass of nd 1À88-1À98 and vd 32-42, consists essentially of, in percentages by weight, B2O3, 12-26; La2O3, 0-34; Gd2O3, 2-34; ThO2, 8-27; and Ta2O5, 8-32. Optional additives are Nb2O5, 0-19; ZrO2, 0-9; TiO2, 0-6; WO3, 0-12; CdO, 0-6; and PbO, 0-4. An oxidizing refining means may be present for preventing reduction phenomena. The composition may be melted electrically in platinum crucibles at 1200-1350‹ C., the refining temperatures being about 50‹ C. above, the melting temperature.
Patent GB-990203-A (GB)
Title: Improvements in busbar assemblies
Inventor: CRAIG WILLIAM MACDERMENT
IPC: H02G5/02
Filed: 1962-09-11
Abstract: 990,203. Bus-bar supports. HOLLIDAY, HALL & STINSON Ltd. Sept. 6, 1963 [Sept. 11, 1962], No. 34739/62. Heading H2C. Bus-bars, shown dotted, are a close fit in a support of insulating material which receives the bus-bars edge on, the material between each pair of slots acting as a bus-bar spacer. The mounting is channel-shaped and slightly deeper than the bars and is provided with a lid 11 with ribs 17 which may locate the housing in a slot in a support 16.
Patent GB-1146061-A (GB)
Title: Hair dyeing agents
IPC: C07D231/48
Filed: 1966-08-04
Abstract: 1,146,061. Hair dyeing. THERACHEMIE CHEMISCH THERAPEUTISCHE G.m.b.H. 4 Aug., 1966 [5 Aug., 1965; 18 May, 1966], No. 34906/66. Heading D1B. New hair dyeing agents based on oxidation dyes comprise 4-aminopyrazolones of general formula:- in which R 1  and R 2  represent a hydrogen atom or an organic residue containing not more than 10 carbon atoms and known coupling components for hair dyeing. The pyrazolone compounds may be used in the form of their salts particularly the hydrochlorides and coupling components include amines, diamines, phenols, naphthols, polyphenols, and aminophenols. In the formula above R 1  and R 2  are preferably alkyl, aryl or heterocyclic radicals.
Patent GB-195713-A (GB)
Title: Improvements in wire ropes
IPC: D07B1/06
Filed: 1921-12-29
Abstract: 195,713. Carpmael, W. P., (Roebling's Son's Co., J. A.). Dec. 29, 1921. Wire ropes.-Wire ropes have a strand-support 5 comprising a narrow flat steel band or of flat wire, wound under tension on a fibre or other compressible core 4 so as to place the core under compression and prevent the disintegration thereof. A soft annealed band allows the core to be deformed, as shown in Fig. 3. If the band is of high carbon steel, bearing-wires 7, which may be of soft metal, are interposed between the band and the usual strands 6 so as to provide an extended bearing surface for the strands. The wires 7 may be previously shaped to the required configuration. A multiple core may be used, the individual strands of which are separately encased in bands of steel.
Patent GB-1303295-A (GB)
IPC: B25B21/02
Filed: 1970-07-21
Abstract: 1303295 Impact wrenches INGERSOLLRAND CO 21 July 1970 [27 Aug 1969] 35273/70 Heading B3N An impact wrench has a torsion spring 7 connected to an anvil 4, the anvil has an extension tube 5 with a latch sleeve 15 mounted thereon which is adapted to move from an inoperative position, as shown, to an operative position, shown in dotted lines, in which the anvil is connected directly to end 11 of the spring 7 so that its effect is by-passed and a higher torque can be transmitted by the wrench. The sleeve can be moved whilst the wrench is being operated. The sleeve is splined to tube 5 and is biased to an inoperative position by spring 19. A snap ring 22 limits forward movement of sleeve 15 and spring 7 is retained in engagement with the anvil by a pin 9. The torsion spring 7, extension tube 5 and sleeve 15 can be incorporated as an attachment 26, Fig. 6.
Patent GB-646462-A (GB)
Title: Improvements in or relating to screw-cutting lathes
IPC: B23G1/04
Filed: 1947-12-31
Abstract: 646,462. Lathes. HOLBROOK MACHINE TOOL CO., Ltd., and HOLBROOK, R. E. Dec. 31, 1947, No. 35347. [Class 83 (iii)] Mechanism for adjusting the pitch of a screw to be cut in a screw-cutting lathe comprises a lead-screw 10, Fig. 1, capable of axial movement in addition to its normal rotary movement, and means incorporating gearing driven from the lead-screw for continuously operating a cam device so as continuously to shift the leadscrew axially in one or other direction while it is being rotated and impart a constant change in its effective pitch. The lead-screw is supported near the lathe tail stock in a thrust bearing 11 journalled in an axially-movable sleeve 13 supported in a casing 17 attached to the lathe The sleeve 13 has an extension 19 provided with two wings 20 projecting therefrom for co-operation with two spring-pressed rollers 21 mounted in housings 23 on the casing to prevent rotation of the sleeve. An extension 18 of the lead-screw has fixed thereto a spur-wheel 54 which drives through change gears in a casing 53 to a spindle 51, Fig. 3, and through a worm and wheel 50, 49 on to a shaft 47. The latter co-operates with a nut to drive a slide 33 in a direction transverse to the axis of the leadscrew between limits restricted by projections on the base of the slide co-operating with a switch adapted to stop the machine. The slide 33 is mounted in guides 34 in the casing and runs on rollers 35, two of which are secured to a tapered rail 37 movable axially by a screw 39 to provide adjustment. A cam 29 comprising a channel member is pivotally-mounted on the slide 33 by a bolt 40 and a further bolt 43 is provided in an arcuate slot 42 in the cam to lock it after angular adjustment by an adjusting bolt 44. A two-part cam-follower 26 has rollers 30 to engage the cam 29 and is adjustable by relative axial movements between the two parts along their inclined common surface. The follower is secured rotatably by a pin 25 to the extension 19, Fig. 1, and locked thereto in adjusted position by bolts 60 engaging arcuate slots 61 in the wings 20. With the cam 29 set at an angle to the axis of the slide 33, the follower 26 will impart an axial movement to the lead-screw as the slide 33 and cam 29 move in a direction transverse to the lead-screw axis. The lathe is stopped automatically by means of an electric switch fixed to the bottom of the casing 17 and operated by projections on the bottom of the slide 33 when the latter reaches the two extreme positions of its travel. Specification 558,442, [Group XXXIV], is referred to.
Patent GB-1423142-A (GB)
Title: Aircraft undercarriage assemblies
IPC: B64C25/26
Filed: 1972-07-28
Abstract: 1423142 Aircraft undercarriages AUTOMOTIVE PRODUCTS Ltd 25 July 1973 [28 July 1972] 35444/72 Heading B7G An aircraft under carriage leg 10, Fig. 2, is extended beyond its retraction pivot 11 by a body 17 which houses a latch bolt 19 adapted to engage up-and-down lock sockets (not shown) on the aircraft structure, which bolt is actuated by mechanism within body 17 by operation of a retraction jack 37 pivoted at 39 to the structure. The bolt 19, Fig. 4, is slidably mounted within a stepped bore 14 in body 17 and is connected by a pin 24 to a hollow rod 23 which engages the smaller diameter portion 16 of the bore, the bolt and the rod being urged outwardly by a spring 22. The inner end of rod 23 is slotted transversely at 25 to accommodate a finger-end 29 of an arm 28 pivotally mounted within a passage 26 in the upper part of leg 10, the spindle carrying arm 28 being provided at its opposite end externally of the leg with a lever 3,, Fig. 3. The free end of lever 33 is pivotally connected to the ram 40 of jack 37 and the lever operates with limited free movement between stops 35, 36 on the leg 10 remote from pivot 11, the views in Figs. 2 and 3 being taken from the opposite side of the leg to that in Fig. 4. When extended, Fig. 2, bolt 19 is engaged in a down lock and lever 33 bears on stop 36. During retraction lever 33 and arm 28 are rocked to retract bolt 19 against the action of spring 22 until lever 33 bears on stop 35, thereby applying lever action to leg 10 to retract it. When the leg reaches the position in which the axis through the pivots of lever 33 lies on the axis of jack 37 further movement of the jack brings the leg up to the position of Fig. 3 where lever 33 again abuts stop 36 and latch bolt 19 engages the up lock.
Patent GB-1138018-A (GB)
Title: Mechanically acting device for remote operation of diesel engines, particularly of reversible marine diesel engines
Inventor: ARENDT HEINZ
IPC: F16H3/54
Filed: 1967-08-02
Abstract: 1,138,018. Toothed gearing. SCHWERMASCHINENBAU " KARL LIEBKNECHT " MAGDEBURG VEB. 2 Aug., 1967, No. 35447/67. Heading F2Q. A change-speed control mechanism for remote operation of reversible marine diesel engines comprises a shaft 2 to which are secured a hand wheel 1 and a sun gear 6, an indicator drum 5 rotatably mounted on shaft 2 and carrying a hollow planet wheel shaft 10, and a planet gear 9 rotatably mounted on shaft 10 and meshing sun gear 6 and an internally toothed gear 8 fixed in an end cover 3. A sprocket wheel 7 is screwed to drum 5 and transmits movement of the drum through a chain transmission to the operating console of the engine. A spring- loaded arrester element 13 is located in the hollow planet wheel axle 10 and co-operates with a notched disc 14 secured to the end cover 3. A plurality of planet shafts and gears may be employed.
Patent GB-1011811-A (GB)
Title: Gear with hydraulic speed selection
IPC: F16H61/02
Filed: 1963-09-09
Abstract: 1,011,811. Electromagnetic relays. H. PAPST. Sept. 9, 1963 [Sept. 8, 1962], No. 35460/63. Heading H2B. [Also in Divisions B7, F1 and F2] An electromagnetic relay comprises a diaphragm 203 carrying on both sides contacts 207 of precious metal, one of the contacts 207 normally engaging a fixed contact 209, energization of a solenoid 202 attracting an armature 204 to open the contacts 207, 209 and instead engage the contact 207 with an adjustably positioned fixed contact 208.
Patent GB-827651-A (GB)
Title: Acetylene recovery and purification
Inventor: BOGART MARCEL JEAN PAUL
IPC: C07C7/11
Filed: 1955-12-12
Abstract: Substantially pure acetylene is obtained from a gaseous mixture obtained by the high temperature cracking of a hydrocarbon feed by passing the gaseous mixture including acetylene, diacetylene and methylacetylene through a first portion of selective solvent of sufficient amount to remove substantially all of the diacetylene, passing said gaseous mixture through a second portion of selective solvent of sufficient amount to absorb substantially all of the acetylene in the mixture, passing said second solvent portion including absorbed acetylene through a stabilizer in which absorbed components of lower solubility than acetylene are removed, separating the remaining absorbed gas from the second portion of selective solvent, and passing the separated gas through a refrigerated portion of relatively high purity selective solvent of sufficient amount to absorb at relatively low temperature substantially all the methyl acetylene and withdrawing as product substantially all of the pure acetylene passing through said refrigerated portion of high purity solvent. The diacetylene absorber is preferably operated at atmospheric temperature and at 100-300 lb. per sq. inch pressure. The stabilizer is operated at 150-225 DEG  F. and at a pressure of 5-65 lb. per sq. inch.  The solvents may be dimethyl formamide, butyrolactone, diethylamine, diethyloxalate, ethylene diacetate, monoethanolamine or "Cellulose" (Registered Trade Mark) acetate.
Patent GB-795306-A (GB)
Title: Improvements in or relating to foundry moulding machines
IPC: B22C23/00
Filed: 1953-12-22
Abstract: 795,306. Moulding-machines. FOUNDRY EQUIPMENT, Ltd., and BEECH, A. S. Dec. 21, 1954 [Dec. 22, 1953; Feb. 5, 1954], Nos. 35664/53 and 3484/54. Class 83 (1). In a shell-moulding machine having a pattern - plate carrier hinged to an invertible sand-bin, the pattern-plate carrier is driven in its hinging movements through the intermediary of a gear-wheel to which it is secured, which gear-wheel when the sand-bin is turned into an upright position moves into mesh with gear-teeth on a power-operated driving member but comes out of mesh when the sand-bin is inverted. Apparatus comprises two bins and patternassemblies 60, 65 and 61, 66, Fig. 1, and two ovens 77, 78 which are carried on counterweighted arms 75, 76 on posts 71, 72 and may be swung into and out of operative position over the respective pattern-carriers 65, 66 by handles 87, 88. The pattern-carriers are held in their upright positions against adjustable-stops 69 by rollers 97 operated by clamping-levers 95, 98, and are each rotated about a shaft 64 into engagement with the associated bin by a rack- and-pinion mechanism 143, 147, 148, Fig. 8, operated by a pneumatic-cylinder 142. The thrust of the drive is taken by a bolt 151 inserted into the shaft 64 by a locking-cylinder 150, so as to lock the bin against rotation while the pattern-carrier is being rotated. A jointring 111 surrounds the top of each bin and the pattern-carrier is clamped thereagainst by clamps 67. The assembly is then inverted by a rack-and-pinion mechanism 123, 124, Fig. 7, operated by a cylinder 126, the pinion 123 being carried by a journal-member 122 of the bin and the pinion 148 being carried away from the pinion 147. Stops 130, 131 on the bin and 132 on the machine frame limit the rotation of the bin. Stripping-mechanism comprises pins which are movable through the patternplate and pattern and are carried by a crosshead actuated by a pneumatic-cylinder. Additional heat may be supplied to the patternplates from below when in the positions out of engagement with the bins, by electric heaters carried by the machine frame. The machine can be operated by hand-control of the patternrotating, bin-locking, and bin-inverting cylinders through valves 155-157 and 165-167, or alternatively, valves may be electromagnetically operated from limit-switches on the machine. Timing and oven-head control mechanism 158 is also fitted. Specification 728,108 is referred to.