baber/WOPTO huggingface dataset:
Patent GB-893720-A (GB)
Title: Improvements in length-sorting apparatus
IPC: B07C5/14
Filed: 1960-07-18
Abstract: 893,720. Sorting solid materials. DRUNERT, O. A. July 18, 1960 [July 22, 1959], No. 24985/60. Class 117. A structure for sorting planks &c. according to length has a conveyer chain 1 extending its whole length, a conveyer chain 2 extending along part of its length, and relatively short conveyer chains 3 arranged at increasing distances from the chain 1. Each short chain is associated with a plank receiving compartment located below it, and the arrangement is such that as the planks are carried along by the chains they are caused to fall into their appropriate compartments. A bracket 10 is positioned at the end of each plank receiving compartment and supports, in addition to chain sprocket wheels 14, a rocker member or ejector 5 comprising a cranked lever with teeth on a plank receiving surface, and a counter weight 13 at the other end. The ejector is mounted on a shaft 11 and, in operation, the planks 4 are aligned at the chain 1 and, if a plank is of insufficient length to extend between the chain 1 and a chain 3, as it is being carried along, an end of the plank falls on to the toothed part of the ejector which turns about its shaft to draw the plank from the chain 1, whereby it falls into the appropriate compartment provided with rollers 6 at the bottom.
Patent GB-666982-A (GB)
Title: An improved dental brace
IPC: A61C5/85
Filed: 1948-09-27
Abstract: 666,982. Regulating teeth. MAZZIER, A. Sept. 27, 1948 [Sept. 27, 1947; Sept. 14, 1948], Nos. 25120/48 and 25121/48. Drawings to Specification. Class 81, (ii). An anchor member for a tooth regulating band comprises an open-ended barrel-shaped member which, owing to its convexity, grips the tooth or teeth and does not ride away from the gums. It may be in the form of a band fitting around one or more teeth or may comprise two such members, around one or more teeth, which are joined by a regulating band also having a concave surface directed towards the teeth.
Patent GB-817508-A (GB)
Title: Improvements in or relating to aircraft structures
Inventor: KERRY THOMAS HENRY
IPC: F02C7/042
Filed: 1955-09-01
Abstract: 817,508. Aircraft air-intake ducts. ROLLSROYCE Ltd. Oct. 11, 1956 [Sept. 1, 1955], No. 25201/55. Class 4. [Also in Group XXVI] An aircraft has.an air intake structure comprising an outer fixed wall supported from the aircraft structure with at least part spaced therefrom and an inner flexible wall located between the outer wall and the aircraft structure to define an intake duct with the outer wall, the inner wall being supported at points spaced in the direction of air flow, means to flex the inner wall towards and away from the outer wall to vary the intake area, and means to maintain the pressures on the two sides of the flexible wall substantially equal. Fig. 1 shows in chordwise section a wing having a spar 10 and skins 12, 13. The outer wall 16 is U-shaped in spanwise section being attached to the wing by the side walls of the U, and extends rearwardly from the mid-chord station. The flexible wall 19 is pivoted to the aircraft structure at 20 and slidingly supported at 21 by co-operating rollers and tracks (not shown). A hydraulic jack 23 flexes the wall to vary the inlet area. A wall 22 forms a smooth rearward continuation of wall 19, but leaves a small gap, whereby the pressures on each side of wall 19 tend to be equalised. Leakage holes 34 in wall 19 have the same effect. A wall 24 forms a smooth forward continuation of wall 19, and is supported by a wall 26 so as to form a boundary layer bleed aperture 25 with the skin 13. The space between wall 26 and skin 13 is connected to boundary layer bleed ports 27 in wall 19, and by ducts inside stringers 29 to the space 30 between all 22 and skin 12. The intake duct may be divided into sections, one for each of gas turbines 14, by walls 17, partly composed of struts 18. Auxiliary air intake doors 33 in wall 16 may open automatically when the pressure with the duct falls below atmospheric pressure.
Patent GB-372209-A (GB)
Title: Improvements in or relating to nut locks
IPC: F16B39/36
Filed: 1931-09-09
Abstract: 372,209. Lock nuts. SOC. ANON. DES ATELIERS GAMAIN, 6, Rue de la Limite, Liege, Belgium. Sept. 9, 1931, No. 25340. Convention date, Sept. 29, 1930. [Class 89 (i).] The nut 2 split throughout its length has a conical portion 1 which fits an elastic conical socket 4 engaging the work. In a modification the socket is formed in a thick, split washer, which is helical in form when unstressed.
Patent GB-906366-A (GB)
Title: Lip-seals and methods of making them
IPC: F16J15/32
Filed: 1961-07-13
Abstract: 906,366. Turning. GENERAL MOTORS CORPORATION. July 13, 1961 [Aug. 1, 1960 (2)], No. 25387/61. Drawings to Specification. Class 83 (3). [Also in Group XXVI] A rubber &c. lip-type seal is made by holding the seal blank in a lathe, cooling the blank by supplying liquid coolant thereto and machining it to size whilst controlling its temperature by thermo-responsive means. The coolant may be cooled by heat exchange with solid carbon dioxide and the controlled temperature may be, for example, - 80‹ F. The cutting tool has a rake angle between 20 and 30 degrees and a clearance angle between 15 and 25 degrees.
Patent GB-1235182-A (GB)
Title: Extrusion
IPC: B21C35/00
Filed: 1968-05-28
Abstract: 1,235,182. Extruding. TREFIMETAUX. 28 May, 1968 [30 May, 1967], No. 25392/68. Heading B3P. A billet 9 is extruded through a die 5 by a ram 6 in a container 1 provided with an annular slot at one end through which the peripheral zone 92 of the billet extrudes. The peripheral zone includes the contaminated part of the billet and any extrusion lubricant. The container may have a copper skin for lubrication or the billet may be sprayed with graphite oil. The extruded material 92 is collected in an annular housing (23) in the die holder, Fig. 4 (not shown). The process may be used for copperzinc, copper-chromium, copper-tellurium and copper-beryllium alloys, zirconium, titanium, aluminium or stainless steel. The extruded product may be tubular. In one example a copper-based alloy with 10% zinc and 2% lead is forward extruded at 820- 850 C. using lubricating oil in the above apparatus. The product has a smooth clean skin and the residue left in the container has no central cavity. In a second example a copperbased alloy with 2% beryllium is backward extruded at 780-800 C. In a third example the copper-zinc-lead alloy is backward extruded at 720-750 C.
Patent GB-893134-A (GB)
Title: Improvements in or relating to yarn
Inventor: NOTT CONAN CHARLES
IPC: D02G1/18
Filed: 1959-07-24
Abstract: 893,134. Finishing yarns; woven fabric. BRITISH NYLON SPINNERS Ltd. July 15, 1960 [July 24, 1959], No. 25414/59. Drawings to Specification. Classes 120(3) and 142(4) Twisted or twistless yarn, comprising a major proportion of undrawn or incompletely drawn synthetic linear polymer continuous filaments which may be of two or more different deniers, is drawn between feed and draw rolls, optionally with intermediate snubbing as caused by passage around a pin, separated to form two or more parts which are subjected to different temperatures, whilst their length is maintained constant, and the parts are then intertwisted. The reconstituted yarn is bulked as a result of differential shrinkage of constituent filaments caused by heating the yarn, before or after formation into a fabric, in the presence of water or steam: heavier denier filaments may form a core which is clad by the other filaments. The bulked yarn may be conventionally prepared as by doubling, braiding, looping, moist or dry heat-setting or sizing. The polymer may be a polyamide, polyester, polyurea, polyurethane and/or stereospecific polyolefine, e.g. polypropylene. Heat treatment(s) may be effected by passage of yarn over a hot plate or by hot nitrogen, steam, infra-red radiant heat, hot molten metal or a high frequency electric field. The yarn may be comprised in the weft (with nylon of different and/or opposite twist as warp) in a fabric which is subjected to moist heat to develop crepe effect therein. Specification 543,466 is referred to.
Patent GB-1433633-A (GB)
Title: Apparatus for feeding flange-forming members
IPC: B65G47/12
Filed: 1973-05-29
Abstract: 1433633 Feeding discs MITSUI SHIPBUILDING & ENG CO Ltd 29 May 1973 [29 May 1972] 25423/73 Heading B8S Apparatus for feeding discs 3 to a welding machine which welds the discs to the ends of pipes to form flanges, comprises piston and cylinder devices 5, 6 operative to reject discs 3 from magazines 4 and transfer them to trough 8 which forks into the two shoots 13, 14 leading to devices 16, 17 for forwarding the discs to the welding machine, the shoot 14 comprising an upper portion 14a connected by a transverse slope 15 to a lower portion 14b so that discs in the shoot 14 are caused to topple over down the the slope 15 and be turned about face. A switch 12 is provided for sending the discs to either of the shoots 13, 14. Each device 16, 17 comprises an arcuate cradle to receive the discs from the shoots, the cradle being pivoted to forward the discs.
Patent GB-209141-A (GB)
Title: Improvements in toy model building sets
IPC: A63H33/10
Filed: 1922-09-21
Abstract: 209,141. Bush, F. J., and Bush, R. W. Sept. 21, 1922. Mechanical constructions. details for building up.-A building set for constructing mechanical objects comprises a number of round rods which may be linked together by split clamping-screws and nuts, as shown in Figs. 2 and 3, and connected to swivelling members as shown in Fig. 1. Plates, wheels, pulleys, and similar pieces may be added.
Patent GB-791925-A (GB)
Title: The recovery of tungsten from high speed steel scale and grinding swarf
IPC: C01G41/00
Filed: 1955-09-07
Abstract: Sodium tungstae is obtained from steel scale and grinding swarf by fusion with sodium carbonate at 800-1000 DEG  C., e.g. in an open-tunnel furnace.  The product may be leached with water and the solution evaporated to obtain solid sodium tungstate or, after addition of hydrochloric acid to give a pH of 8-9, if desired, calcium chloride may be added to precipitate calcium tungstate. If molybdenum is present in the scale &c., this goes into the leach solution as sodium molybdate and remains in solution after the addition of calcium chloride, which in this case should be increased by an amount equivalent to the molybdenum present.
Patent GB-421359-A (GB)
Title: Improvements in or relating to means for driving overhead cam shafts of internal combustion engines
IPC: F01L1/02
Filed: 1933-09-15
Abstract: 421,359. Valve gear. ASHCROFT, I., 35, Avenue Road, Staines, Middlesex. Sept. 15, 1933, No. 25650. [Class 7 (vi)] In an engine having two or more overhead cam shafts, driven by chains, these are connected to a double sprocket which is mounted on the cylinder head and secured to the sprocket of an intermediate chain by means ensuring the correct timing, so that the intermediate sprocket may be detached and the cylinder head removed with the driving chains and sprockets of the cam shafts intact without disturbing the timing. Two overhead cam shafts 2 are driven by chains 6 passing over a double sprocket 7 mounted on a spindle 8 on the cylinder head. An intermediate chain 9 driven from a half-speed sprocket 14 passes over a sprocket 15, which is also mounted on the spindle 8 and is secured to the double sprocket 7 by three bolts 16, the correct timing position being ensured by a dowel pin, or by placing the three volts in unequally spaced relationship. When the intermediate sprocket 15 is detached, it is placed on a support 22 just below, so that the chain 9 remains engaged. The chains are fitted with spring tensioning- devices.
Patent GB-997756-A (GB)
Title: Improvements relating to hydraulic servo devices on motor vehicles
Inventor: FIALA ERNST
IPC: F15B15/06
Filed: 1964-06-22
Abstract: 997,756. Window and door operating mechanism. DAIMLER-BENZ A.G. June 22, 1964, No. 25749/64. Heading E2M. [Also in Division F1] A window or door raising lever 10 is pivoted at a fixed point 14 on a base board 1 and is also pivoted at 12, 13 to pistons 8, 9 within hydraulic cylinders 6, 7 also secured to the board 1 at their lower ends by ball joints 21 and springs 23; cylinder 7 being constantly connected to a pump 20 through a duct 5 and reservoir 3 whilst cylinder 6 is connected to the pump delivery or to a sump 19 according to the setting of a valve 17. As shown cylinder 6 is of greater diameter than 7 whereby lever end 11 is displaced upwardly. Upper and lower limits of lever movement are determined by the position of stops 15, 16.
Patent GB-160485-A (GB)
Title: Improvements in machines for washing wool and other fibrous or textile materials or fabrics
IPC: D01B3/08
Filed: 1919-10-21
Abstract: 160,485. Hawkins, T. W. Oct. 21, 1919. Passing loose fibrous materials through fluids and fluid-applying apparatus.-A wool &c. washing machine of the kind comprising propelling frame for moving the material along the bowl of the machine and a discharge frame for removing the material from the machine has independently-adjustable linkage systems, driven by sepaiate eccentrics or other means, for varying the paths through which the frames move. As shown in Fig. 1, the main frame a, suspended by rods b<2>, and the auxiliary or discharge frame suspended by rods b<1>, are actuated respectively by eccentrics e, f, the positions of which on the mainshaft may be varied by the use, for example, of tapered keys. The strokes of the frames may be varied by adjusting the points at which the eccentricrods are attached to the slotted links c, d.
Patent GB-1339280-A (GB)
Title: Endless tracks for land vehicles
IPC: B62D55/20
Filed: 1970-12-22
Abstract: 1339280 Endless-track vehicles BLAW KNOX CONSTRUCTION EQUIPMENT Inc 22 Dec 1970 [31 Dec 1969] 25835/73 Divided out of 1339278 Heading B7H The subject-matter of this Specification is included in Specification 1,339,278 but the claims are directed to an endless track comprising longitudinally extending bands disposed parallel to each other having ground engaging shoes, each shoe having a centrally disposed opening midway between each side of the track for imparting driving force, the shoes receiving ground engaging inserts extending substantially over the entire transverse extent of the track. Specification 1,339,278 is referred to.
Patent GB-1345653-A (GB)
Title: Catalysts for the oxychlorination of ethylenic hydrocarbons  in a fluid or moving bed
IPC: B01J27/122
Filed: 1972-06-02
Abstract: 1345653 Oxychlorination catalysts RHONEPROGIL 2 June 1972 [3 June 1971] 25893/72 Heading B1E [Also in Division C2] Copper and magnesium chlorides are supported on active alumina of surface area 180-380 m<SP>2</SP>/g. The copper content of the catalyst is 3-10 wt. % and the atomic ratio Mg/Cu is 0.2-0.8. The chlorides may be formed in situ from other copper and magnesium compounds.
Patent GB-662141-A (GB)
Title: Improvements in or relating to sextants
Inventor: EVERITT PHILIP FRANCIS
IPC: G02B23/08
Filed: 1948-10-05
Abstract: 662,141. Integrating-apparatus. KELVIN & HUGHES, Ltd. Sept. 22, 1949 [Oct. 5, 1948], No. 25906/48. Class 106 (iv). [Also in Group XX] An integrating device for averaging a series of altitude readings of a sextant comprises a cone 25 driven in accordance with measurements of altitude which drives a cylinder 32 through one or more balls 30 contained in a cage that is driven along the cylinder at a constant speed by a rack 44 and the cylinder is geared through gears 34, 36 to a shaft 28 on which the cone 25 is freely rotatable, and which carries a series of five drums 1-5, of which drums 4 and 5 indicate degrees and minutes of altitude, respectively and drums 1, 2, 3 are aligning drums, 1 and 3 being connected respectively to the shaft 28 and cone 25 and geared by differential gearing to the middle drum 2. After a period of observations drums 1, 2 and 3 are manually re-aligned to their initial settings after which drums 4, 5 indicate the average altitude. Specification 605,331 is referred to.
Patent GB-1209998-A (GB)
Title: Door arrangements for closing jet lift aircraft engine compartments
Inventor: WEIGMANN ERICH
IPC: B64C29/00
Filed: 1968-05-30
Abstract: 1,209,998. Storage of jet-lift engines. MESSERSCHMITT-BOLKOW-BLOHM G.m.b.H. 30 May, 1968 [13 June, 1967], No. 25977/68. Heading B7G. In a door arrangement for jet-lift aircraft, the jet-lift engines are stored in a compartment with doors 30, 31 that open outwards when the engines are extended, the door 30 substantially covering the whole width of a channel 12 between the extended engines and the fuselage so as to protect the engine intakes from recirculation 40 of emitted hot gases. The doors, when closed, are recessed into the fuselage wall and a flange 33 on the lower door 30 engages in a recess 34 in the upper door 31. In a modification, Figs. 4, 5, 6 (not shown), the meeting edge of the doors and the centre line of the engines are at an angle to the aircraft longitudinal axis, the engines being swung out on a swivel arm that carries a guide pin (25) to engage in a guideway (23) in the door 30 and the design may be such that the door affords additional support for the engines. In a further modification, Figs. 7, 8, 9 (not shown), the doors are shaped so as to close off the channel 12 when the engines are swung outwards and forwards.
Patent GB-1506847-A (GB)
Title: Pivot assemblies for windows and the like
IPC: E05D11/06
Filed: 1975-06-11
Abstract: 1506847 Pivots with restricted movement JAMES GIBBONS Ltd 11 June 1975 [12 June 1974] 26049/74 Heading E2F In a window pivot of the type in which one pivot member is rotable within another, an axially extending stop on one member engages at least one axially extending abutment on the other to limit the relative pivotal movement and the or each abutment is/are formed on a separate component in the form of a plate. In the embodiment shown a member 106 (for attachment toa window) rotates within a member 107 (for attachment to a window frame 124) and is provided with friction rings 116 adjustable by screws (not shown) to vary the stiffness of the pivot. A stop bar 115 on member 106 engages abutments 113 in a member 126 which is mounted in a channel 125 secured to the window frame. Springs (not shown) normally urge stop bar and abutments into engagement but, by the use of a projecting handle, the member 126 can be retracted to move the abutments out of engagement. In another embodiment (Figs. 1-4, not shown) the abutments are formed on a plate inserted into a recess in member 107 and, depending on the position in which the plate is placed, movement in either direction will be limited. The members 106, 107 are stainless steel as are the abutments the member 126 is aluminium.
Patent GB-1136045-A (GB)
Title: Drinking water supply system for multi-tier battery cages for poultry and other livestock
Inventor: PATCHETT PAUL ERIC
IPC: A01K39/02
Filed: 1966-06-11
Abstract: 1,136,045. Water supply system for battery cages. R. J. PATCHETT Ltd. 6 Sept., 1967 [11 June, 1966], No. 26113/66. Heading A1M. A drinking water supply system for battery cages comprises horizontal pipes 1 provided with nipples 2 connected via a closed circuit of pipe work to a water tank 8. When the water supply is turned on from the mains 9 water flows from the outlet of the ball-controlled valve 10, up the riser pipe 11 and fills the top horizontal pipe 1, water then flows over the bend 6 of pipe 5 and fills the horizontal pipe next below the water flow continuing similarily until all four horizontal pipes are full when the water passes into the tank 8 through pipe 12 until the tank is filled to a predetermined level when the mains supply is cut off by the ball-valve. When poultry drink from the nipples 2 the ball-valve 10 automatically operates to supply water to the system.
Patent GB-1157091-A (GB)
Title: Frequency Meter
Inventor: FROGGATT DENNIS GORDON
IPC: G01R23/02
Filed: 1965-06-21
Abstract: 1,157,091. Electronic counters; electric selective signalling systems. SMITH INDUSTRIES Ltd. 20 Sept., 1966 [21 June, 1965], No. 26150/65. Headings G4A and G4H. The number of pulses occurring in one time interval is counted and is then displayed during the next time interval. A master oscillator 13 causes time base circuit 16 to energize count control circuit 31 for T msecs. Lead C, Fig. 2, is earthed and incoming pulses at I/P are counted by a magnetic cup-and-bucket counter 21 which uses a transistor TR1 for resetting and carry over terminal C Y  at each count of ten. Similar circuits are used for higher denominations. At the end of T msecs. earth is disconnected from C and the count stops. A circuit 28 then resets stores 17 and indicators 18 after which circuit 27 earths lead T, Fig. 2, and applies ten readout pulses at R/O to the several counter stages. The read-out pulses are absorbed by 21 until saturation is reached after which each pulse causes TR2 to conduct to send a corresponding pulse over terminal T/C whereby the reading of the counter is transferred to the stores 17 and indicators 18. A circuit 26 then resets the counters and the next cycle begins.
Patent GB-1144168-A (GB)
Title: Improvements in or relating to rider powered vehicle drives
IPC: B62M1/36
Filed: 1966-06-13
Abstract: 1,144,168. Pedal crank transmissions. FICHTEL & SACHS A.G. 13 June, 1966 [15 June, 1965], No. 26231/66. Heading B7E. A pedal car, Fig. 1 (not shown), drives a pair of rear wheels through a chain and freewheel unit connected by a coupling to a rear wheel drive shaft. The freewheel unit, Fig. 2, comprises a sprocket wheel 30 fixed to an input component 38 rotatably mounted on a fixed sleeve 24 rotatably supporting a rear wheel drive shaft 14. An output component 40 connected to the shaft. 14 by a coupling plate 82 and a bent over lug 88, is also connected by selective engagement of a circular spring 64 with one of the pawls 54, 56, Fig. 4, and with the input component 38. The pawls are biased outwardly by a spring 58. The pawl support 50 is connected by means of a claw coupling 52 to the component 38 and the ring 64 is frictionally connected with a support member 66 non- rotatably mounted on the sleeve 24, and the ring 64 is connected with the support 50 by a lug 68 engaging stop faces 70, 72 on the support. When the part 38 and the support 50 are rotating in the direction of the arrow, the pawls 54 protrude through hole 74 in the ring 64 and engages and drives the output component 40, the lug 68 co-operating with the stop 70. When the direction of rotation is reversed the ring 64 is braked by friction with the support 66 and does not turn with it until the stop 72 engages with lug 68 so that the pawl 54 moving with the ratchet support 50 relative to ring 64 is moved out of engagement with the teeth 60 as the aperture 74 is moved away from pawl 54 and the other pawl 56 moves through the hole 76 to engage and drive the teeth 60. When the output component 40 runs faster in either driven direction than the input component 38 then no motion is transmitted due to the pawls. In Fig. 3 (not shown) the support member 66 is connected to a fixed block (92) whilst in Fig. 5 (not shown) the part (12) is the input, (112), (124), are the pawls, (130) is the spring ring, and the output sleeve (110) drives the shaft 14 via a cross-pin (112) in a hole (114) in the sleeve. In Fig. 6 (not shown) rotation of the input (218) screws a double cone (236) in one or the other direction until it drives the output sleeve (226) and the shaft 14 via coupling (228).
Patent GB-1060437-A (GB)
Title: Sensitive photographic silver halide emulsions and materials prepared therefrom
IPC: G03C1/34
Filed: 1964-06-25
Abstract: Ethyl-6-bromocaproylurethan is prepared by reacting 6-bromocaproamide with oxalyl chloride and treating the product produced with ethanol. It is used as an antifoggant (see Division G2).