baber/WOPTO huggingface dataset:
Patent GB-1175097-A (GB)
Title: Retractable Undercarriage for Aircraft
Inventor: PERDUE JACK
IPC: B64C25/26
Filed: 1967-06-21
Abstract: 1,175,097. Aircraft undercarriages. ELECTRO-HYDRAULICS Ltd. 18 June, 1968 [21 June, 1967], No. 28669/67. Heading B7G. [Also in Division E2] An aircraft retractable undercarriage comprises a latch 12, pivotally connected to the aircraft at 13, which engages a locking pin 4 located on a lug 5 on a leg member 1. A cam follower 15 on the latch 12 has a clearance from the upper surface 20 of a cam 3 so that deflections of the undercarriage due to ground manoeuvres will not cause the latch to be unlocked. The undercarriage is retracted by extending the jack 7; when this is done piston rod 6 cannot move since pin 4 is locked by the latch 12. Accordingly the cylinder 8 moves to the right as permitted by a pin and slot lost motion connection 10,11, and link 16 also moves to the right releasing latch 12 from the pin 4 whereupon the piston rod 6 pivots the member 1 about pivot 2. The profile 22 of the cam 3 passes under the cam follower 15, eliminating the lost motion during the retraction operation. The undercarriage is lowered by closing the jack, the locking occurring at the end of lowering when the cam follower 15 leaves the profile 22. In another embodiment locking is aided by a compression spring 17 which urges the latch 12 into the locked position. The device may be adapted for use as an up lock.
Patent GB-857341-A (GB)
Title: Improvements in and relating to the fixing or bedding of tiles on walls, floors and other surfaces
Inventor: BULLIN LAWRENCE
IPC: E04F13/14
Filed: 1957-09-12
Abstract: Tiled structure elements, e.g. walls, floors and similar surfaces, are formed by affixing the tiles, e.g. ceramic tiles, to the surface with a layer, e.g. 1/8 to 1/4 thick, of a cementitious composition comprising 97,5% to 99,5% by weight, of Portland cement and from 0,5% to 2,5% by weight of methyl cellulose or an alkali metal salt of carboxymethyl cellulose, the composition being rendered plastic with water, applied to the surface, and the tiles pressed thereonto, wetting of the tiles and the surface before hand being unnecessary. Up to 50% by weight of the cement in the composition may be substituted by siliceous or aluminous fillers.  According to the Provisional Specification plasticisers, e.g. calcium hydrate, and substances which delay setting, e.g. calcium stearate may be incorporated in the cementitious composition.
Patent GB-911386-A (GB)
Title: An improved process for the electrochemical treatment of solutions
IPC: B01D61/42
Filed: 1960-08-19
Abstract: 911,386. Electrolytic processes using fuel cell electrodes. IONICS Inc. Aug. 19, 1960 [Sept. 28, 1959], No.28732/60. Drawings to Specification. Class 41. Electrolytic processes, including deposition of metals, dialysis, and decomposition of salt solutions, e.g. brine, are effected using a catalytic gas electrode, e.g. a fuel cell as one electrode, and by mounting an ion-exchange membrane to separate the two electrodes, the second of which may be a normal electrode or a fuel electrode. Hydrogen or methane gas passes into the anode fuel electrode, and oxygen or air into the cathode. By this means the total D.C. potential required is reduced by the potential generated at the fuel electrode, and/or the potential required to release gas at one electrode is eliminated. The ionexchange diaphragm may be made of polymers and in cationic or anionic form or, may be in the form of a solid electrolyte containing water. The diaphragm may be mounted between the two electrodes, or contacting the face of the fuel electrode and made electrically conducting by its water content. Cells illustrated are two, three, and four compartment cells which may be applied to the electrolysis of brine to produce NaOH and Cl 2 ; of acid potassium fluoride to produce fluorine; of sodium sulphate solution to form the acid and base; to plating with metals, e.g. Zn, Cu, Cd, and to depositing metals, e.g. Fe, Ag, Pb, Sn, Cr, Co, Cd from solutions of their salts, and to obtain Cu from leach liquors of crude, copper ores. Figures are given showing economy in electric power consumption. Specifications 720,002, 794,471, 821,229, and U.S.A. Specifications 2,384,463 and 3,017,338 are referred to.
Patent GB-1129374-A (GB)
Title: Process and apparatus for the heat treatment of materials
IPC: F26B13/16
Filed: 1966-06-28
Abstract: 1,129,374. Sieve drum driers. VEPA A.G. 28 June, 1966 [26 July, 1965], No. 28843/66. Heading F4G. [Also in Division D1] In a method of heat treating, e.g. predrying or drying, textile material 15, with a gaseous treatment medium, the material is supported for passage through a housing 1 on a rotating body 5 which includes a plurality of small rod drums 14 each capable of rotating relative to the body and having a suction draft applied to the interior of the body, the circumferential speed of which body being different from the speed of the material whilst the gaseous medium passes through the material. The housing may contain a normal sieve drum, and the portion of the rotating body not covered by material may have an exterior baffle. The rod drums are mounted in bearings between two end plates of the body so as to be exchangeable.
Patent GB-853683-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/98
Filed: 1958-09-09
Abstract: 853,683. Fluid-blast switches. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 9, 1958 [Sept. 13, 1957], No. 28866/58. Class 38 (5). Arc suppression is obtained by the use of an extinguishing liquid which is gaseous at room temperatures and pressures and which falls within the following group: SO 2 , SF 6 , SeF 6 , SOF 2 , CCl 2 F 2 , ClO 3 F, C 2 F 6 , C 3 F 8 , CClF 3 , and CF 3 Br. In Fig. 4 two series arcs 86, 87 are formed and the liquid is forced by a piston in cylinder 28 through valves 12 into the arc. The liquid may enter through the fixed contacts 55. The movable contacts 45 are ganged for operation with the piston by a rod 47 and bell-crank 51. Evaporated gas is re-liquified by a compressor 71 after being cleaned by a filter 73 and returned to the storage bottle 21. A relief valve 62 vents the switch chamber if the back-pressure of the gas is too high. The liquid bottle can be pressurized by a compressed gas, e.g. N 2 , or heating means may be used to increase the vapour pressure of the liquid. In the latter case the vapour in bottle 21 may be used to open the circuit via a solenoid-operated valve and a piston. A valve responsive to the mag nitude of the overload may be provided to meter an appropriate amount of extinguishing fluid. A modified interupter (Fig. 10) employs a pool 133 of the liquid and an auxiliary arc 152 to expel liquid past the main arc 153. A simple explosion pot and one arc may be used. Specifications 710,925 and 736,090 are referred to.
Patent GB-1061639-A (GB)
Title: Pyrrole derivatives
IPC: C07D207/42
Filed: 1965-07-08
Abstract: The invention comprises compounds of formula <FORM:1061639/C2/1> wherein n is 2 or 3 and X is a p-phenylene group or a group -(CH2)ywherein y is 1, 3, 4, 5, or 6, or n is 4, 5, or 6, and X is a p-phenylene group or a group -(CH2)y-, wherein y is 1, 2, 3, 4, 5 or 6, and R is a hydrogen atom or a formyl group, non-toxic acid addition salts thereof, and their preparation by reaction of a compound of formula <FORM:1061639/C2/2> under anhydrous conditions with a C1- 4 aliphati alcohol and hydrogen chloride to form a compound of formula <FORM:1061639/C2/3> reacting this under anhydrous conditions with ammonia in a C1- 4 aliphatic alcohol to form the corresponding nitro-pyrrole amidine hydrochloride, and catalytically hydrogenating the nitro group to an amino group, followed, if desired, by formylation.  Nitrile starting materials of the second formula above are prepared by reaction of 1-methyl-4-nitropyrrole-2-carboxylic acid with thionyl chloride and then with a compound H2N-X-CN to form a 1-methyl-4-nitropyrrole-2-carboxamido-alkyl-or-benzo-nitrile, catalytically hydrogenating this to form a 1-methyl-4-aminopyrrole-2-carboxamido-alkyl- or benzo-nitrile, and condensing this with 1-methyl-4-nitropyrrole-2-carboxylic acid chloride, followed, if desired, by the requisite number of successive catalytic hydrogenations and condensations with the above acid chloride.  The compounds of the invention have anti-viral, anti-protozoal and anthelmintic activity and may be used in pharmaceutical compositions in combination with a carrier.
Patent GB-930167-A (GB)
Title: Improvements in and relating to yieldable shoring elements
IPC: E21D11/18
Filed: 1961-08-11
Abstract: 930,167. Setting devices for mine arch supports. F. W. PAURAT. Aug. 11, 1961 [Aug. 12, 1960], No. 29045/61. Class 20 (2). A telescopic mine arch consisting of an inner member 1, an outer member 2, a wooden wedge 7, setting shoe 9 and clamping member 8 is operatively loaded only when the setting load is attained by a motor 5, 6 acting on opposed abutments 3, 4. The motor may take the form of a piston-and-cylinder unit as shown or a ratchet-wheel or toothed winch and two such motors may be employed on each mine arch support to avoid bending moments (see Fig. 4, not shown). Specification 862,651 is referred to.
Patent GB-1105297-A (GB)
Title: Method of erecting buildings
Inventor: FLIN KENNETH
IPC: E04B1/344
Filed: 1964-07-15
Abstract: 1,105,297. Methods of erecting buildings. JOHN EDGINGTON & CO. Ltd. 24, Sept., 1965 [15, July, 1964], No. 29074/64. Heading E1S. A building or tent is erected by disposing at base level successive wedge shaped sectors which are secured to an anchorage 1, the completed sector being rotated upwardly about the anchorage as by means of a jack 6 and a further wedge shaped sector completed therebeneath. The building may consist of more than one series of sectors which, if desired, may overlap, see Fig. 5 (not shown). The ribs 3, 4 of each sector may be of arcuate configuration interconnected by canvas, plastics or metal sheeting.
Patent GB-1012638-A (GB)
Title: Method of and apparatus for transporting concrete
Inventor: OURY JOHN FOSTER
IPC: E04G21/04
Filed: 1964-07-15
Abstract: 1,012,638. Endless conveyers. OURY ENGINEERING CO. July 15, 1964, No. 29087/64. Headings B8A and B8S.  Endless belt conveyer sections 10, 11, 12 ... , for transporting concrete mix from a shoot 14 to a floor &c. being laid, are connected to each other so as to be relatively rotatable in plan (Fig. 2). The inclination of adjacent sections may also be relatively varied and the longitudinal position of the upstream end of any section can be moved longitudinally under the feed end of the preceding conveyer. The mix is deflected by a canvas boot 77 at the downstream end of each section into a funnel 76 rigid with framework of the upper conveyer (Figs. 3, 4). Also rigid with the same framework are depending bolts 98, 99, carrying an annular member 97 which is rotatable between flanges 95, 96 forming an annular channel cross-section member 92. The latter is rigid with a frame 87 which supports the lower conveyer. Side frames 17, 18 of the lower conveyer are outwardly channelled at 19 to rest on a pair of rollers 105, 105, carried by a bar 101 which is centrally pivotally mounted on the frame 87. This arrangement thus permits retraction and extension longitudinally of the conveyer relative to the frame 87, and allows variation of inclination of the conveyer. The frame 87 is pivotally mounted at 85 on a fixed base frame 3.
Patent GB-1307764-A (GB)
Title: Injection moulding machines
IPC: B29C37/00
Filed: 1970-06-16
Abstract: 1307764 injection-moulding BUCHERGUYER AG MASCHINENFABRIK 16 June 1970 [18 June 1969] 29118/70 Heading B5A An injection moulding machine, Fig. 1, comprises an injection cylinder 1 having a nozzle 5, a reciprocating plasticizing plunger 9, a reciprocating filling plunger 6 behind the plunger 9 and a plunger rod 10 carrying plunger 9, passing through plunger 6 for relative longitudinal movement thereto. The plasticizing plunger 9 is preferably rotated. In operation, while plunger 9 occupies the position shown, plunger 6 reciprocates between A and B, material from hopper 2 filling dosing chamber 15. Plungers 6, 9 are then moved forward together until cone 12 of plunger 9 abuts cone 4 of the injection cylinder 1. Plunger 9 is then retracted, material being plasticized on passing through gap 14 into injection chamber 16 whence it is injected into the mould (not shown) by movement of both plungers. Alternatively, during filling, plunger 9 occupies its most forward position, defining the dose by the extent of its retraction simultaneously with plasticizing. In a third method of operation, plunger 9 occupies a position leaving a small gap between itself and cone 4. Material is injected past plunger 9 by forward movement of plunger 6, the extent of which determines the dose, simultaneously with plasticization by rotation of plunger 9 and with injection. Plunger 6 is preferably subjected to high frequency vibrations during filling. As shown in Fig. 1, plunger 9 may have a conical head 12, a cylindrical portion 11 and a conical portion 13 seating in a conical recess 8 in plunger 6. In alternative embodiments, portion 11 may be replaced by a further conical portion (17, Fig. 2, not shown), the plunger 9 may have a conical head (19, Fig. 3, not shown) having axial holes (20) to effect plasticization. Plunger 6 may be in the form of a conveying screw (22, Fig. 4, not shown).
Patent GB-224724-A (GB)
Title: Adjustable tennis rackets
IPC: A63B51/12
Filed: 1923-11-19
Abstract: 224,724. Wright, A. A., Howlett, W., and Lynch, E. C. Nov. 19, 1923. Rackets.- In an adjustable tennis racket or the like means are provided for tightening the stringing by thrusting the frame out of the handle and bv moving the wedge in the opposite direction. A nut 7 at the end of the handle is rigidly attached to a tube 5 provided with a screw thread 16 engaging a collar 8 attached to the frame 2. The frame is expanded to tighten the strings by rotating the nut relative to the handle thus forcing out the collar 8 and frame 2. At the same time a second nut 6 rotates by frictional contact with the nut 7 and, by means of a rod 4 and thread 18, draws down the wedge 3 to force the frame on to a channel-shaped seating 15 within the handle. The threads 16 and 18 are of opposite hand and the thread 18 is the coarser thereby giving a differential adjustment. At each side of the wedge is a spring-pressed flap 24 which opens inwards under air pressure during a stroke and allows air to pass through the handle for the purpose of keeping the handle cool. The frame 2 is of channel section, Fig. 9, thickened in the middle and having the sharp angles rounded off. The edges of the string holes are rounded off.
Patent GB-383028-A (GB)
Title: Process for increasing the extensibility of artificial threads especially artificialsilk made from cellulose derivatives such as cellulose acetate
IPC: D01F2/28
Filed: 1931-10-20
Abstract: The extensibility of artificial silk &c. made from cellulose derivatives such as cellulose acetate, which has been subjected to after-treatment comprising stretching in the swollen state, is improved by treating the stretched threads, after drying, for a short time to the action of organic swelling media under such conditions that no further lengthening of the threads occurs, and then again drying the threads.  Constant length of the threads is preferably maintained during both stages of the treatment.  The material may be treated in the loose state or as hanks, coils or fabrics, conveniently while supported between pairs of rods or rollers adjusted apart to the length of the hank &c.  In some cases the treatment may be applied repeatedly to the same threads; and in the case of hanks or coiled threads, they may be washed to remove the swelling agent to prevent adherence of adjacent threads during the drying operation.  A suitable swelling agent for stretched cellulose acetate silk is a mixture of methylene chloride and petroleum ether. The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment of textile goods in general, and to the use of any swelling agent; and it is not limited to the treatment of artificial threads that have been stretched after manufacture. This subject-matter does not appear in the Specification as accepted.
Patent GB-1100617-A (GB)
Title: Improvements in polyphase electrical circuits
Inventor: MARTIN DAVID MAXWELL
IPC: H03K17/725
Filed: 1965-07-09
Abstract: 1,100,617. Supply systems for consuming apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 9 July, 1965, No. 29198/65. Heading H2H. A circuit arrangement comprises a plurality of input terminals 11, 12, 13 to which a polyphase input supply is connected, a common junction 16, and a circuit between each input terminal and the common junction which comprises a load 14 and a thyristor control arrangement 15, the load 14 being adjacent the input terminal. By these means a short circuit in the load (shown dotted as 18) does not connect the thyristors in short circuit across the supply. The thyristor control arrangement may be a pair of back-to-back thyristors as shown, or a thyristor in reverse parallel with a diode.
Patent GB-925656-A (GB)
Title: Improvements relating to electrical apparatus utilising capacity-influenced detecting elements
Inventor: LEWIS ERIC
IPC: H01B11/12
Filed: 1958-09-12
Abstract: 925,656. Determining levels of fluent materials. THOMAS INDUSTRIAL AUTOMATION Ltd. Aug. 17, 1959 [Sept. 12, 1958], No. 29262/58. Class 37. A detecting element for a capacitive type measuring apparatus comprises two parallel conductors each of uniform circular section throughout its length and supported by mounting means, the two conductors being separated by the width of a thin web of insulating material which is also of uniform section throughout its length. Figs. 1, 2 show an element comprising a rigid conductor 1 supporting a smaller conductor 3 by means of a web 2 of insulating material. The detector may be mounted as shown for use as a level detector for powder or granular material, the conductor 1 being earthed so that accumulation of powder on its upper surface will not give erroneous indication. The detector may be inverted for use with viscous fluids. Fig. 3 shows a vertical detector comprising wires 5, 6 of the same diameter moulded into the edges of a web 7 of insulating material. The Specification refers to mounting means 8 and tensioning of the web 7 by means of a weight 9.
Patent GB-603907-A (GB)
Title: Improvements in synchronous hydraulic transmissions
IPC: F15B7/02
Filed: 1945-11-05
Abstract: 603,907. Hydraulic machines. OLAER MARINE. Nov. 5, 1945, No. 29327. Convention date, Jan. 4. [Class 69 (ii)] In a hydraulic device for the synchronous transmission of movement from one shaft 1 to at least one other shaft 1a, a transmitting group of cylinders 3, 4 is operatively connected with the first of these shafts, a receiving group of cylinders 5, 6 is operatively connected with the other shaft and a system of pipes 15, 16, 17, 18 interconnects the respective cylinders of these two groups, each group including at least two double acting cylinders each pivotable about an axis such as 11, 12, 13 or 14, perpendicular to its axis of symmetry and containing a piston 7, 8, 9 or 10, the rod of which is directly pivoted to a crank-pin 2 or 2a, eccentric or other equivalent means mounted on the corresponding shaft. Each pipe includes an exhaust valve such as 22, 23, 24 or 29, and an inlet valve 25, 26, 27 or 28, all the exhaust valves opening into a common conduit 20 leading through a check valve 19 to a spring-loaded reservoir 31 from which a conduit 21 leads to the inlet valves. This arrangement provides a pressure relief and leakage make-up means.
Patent GB-203941-A (GB)
Title: Improvements in draught, dust, and weather excluders for doors
IPC: E06B7/20
Filed: 1922-10-27
Abstract: 203,941. Edwards, W. H. Oct. 27, 1922. Draught, dust, and weather excluders.-A draught excluder for the bottoms of doors consists of a lath having a resilient pad housed in a slot in the door, or in a casing 1 screwed to the door, and operated by a spring rod connected thereto by staples and engaging an adjustable stop on the hinge post of the door. The rod projects through an end-plate 7 of the casing and abuts against an opposite end-plate 6, being supported on a tongue 9 secured to that end-plate or to the end of the casing. The pad is preferably a folded strip having its free ends secured in the edge of the lath, and may project beyond the ends of the lath. The lath is preferably curved being shallower in the middle. The rod may be bent where engaged by the staples, to prevent withdrawal.
Patent GB-827286-A (GB)
Title: Improvements in or relating to telephone or like systems
Inventor: BAKER GEORGE THOMAS
IPC: H04M15/04
Filed: 1955-10-14
Abstract: 827,286. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Oct. 11, 1956 [Oct. 14, 1955], No. 29397/55. Class 40 (4). Metering is performed on a magnetic drum, one storage area of which is reserved for test purposes. Periodically pulses from a source P, Fig. 4, are registered in the test area and simultaneously on an electromagnetic counter EC. The entries in the test area and the counter EC are compared at CS and any discrepancy brings up an alarm A. The counter comprises two uniselectors, Fig. 1, wired so that they open or close gates 1-19 so as to produce a series of pulses TX1-TX10 on leads SUM and SUM representing in binary form the number of pulses provided by the source P. After each step of the counter a time pulse TPM, Fig. 2, occurs. A further time pulse TZN is supplied for each register which is to be tested. The number represented by the pulses on leads SUM, SUM is compared with the number signalled by the register to leads SLM, SLM and any discrepancy sets up electronic relay MAA to reverse relay CR and operate ate an alarm and connect up stand-by equipment. When the fault has been rectified key KAA may be operated to restore MAA and CR. Test register full. When 1 is detected in area TXI relay MBA, Fig. 3, is operated, but is restored if 0 is detected in any subsequent area. If the test register is full MBA remains operated until pulse TZN occurs after the whole register has been scanned. MBA then applies potential to terminal RF to initiate transfer of the information to a punched tape. The pulses from source P may be at 2-minute intervals or may be slightly less so as to fill the register every 24 hours. The magnetic drum may be of the type described in Specification 723,148.
Patent GB-226800-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B3/00
Filed: 1924-12-08
Abstract: 226,800. Junkers, H. Dec, 24, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Valves.-Whirling of charging- air is produced before it passes the inlet valve 2 by vanes 11, on the upper face of the valve 2.