baber/WOPTO huggingface dataset:
Patent GB-1496136-A (GB)
Title: Heat exchanger more particularly for use in combination with a gas turbine engine
IPC: F28D9/00
Filed: 1975-03-25
Abstract: 1496136 Gas turbine engines; air pre-heating ROLLS-ROYCE Ltd 25 March 1975 [2 April 1974] 14560/74 Headings FIG and F1L The invention relates to a heat exchanger comprising a plurality of heat exchange elements 36 comprising a flow path through which fluid to be heated flows the flow path comprising a number of ducts through which the heated fluid flows in which ducts are mounted combustion equipment of a gas turbine engine. In the embodiment, the gas turbine engine 10 comprises a compressor 14 Fig. 1, combustion equipment 16 Fig. 2, compressor drive turbine 18, and a power turbine 20; the engine comprises also the heat exchanger 12. Air from the compressor is led off through eight stub ducts 22 to the heat exchanger and combustion gases discharge from the eight combustion chambers 16 into stub ducts 48 being directed by guide ducts 50 on to the HP turbine 18. The stub ducts 22 connect to ducts 24 through which the air passes to two vertical ducts 26 one at each side of the engine. The duct 26 terminates in a duct 28 from which the air passes to two transverse ducts 30. The air passes from each transverse duct through ducts 34 Fig. 2 to upper manifold 32. The air then passes through a plurality of heat exchange elements 36 to lower manifold 38 from which the heated air passes through ducts 40 to two transverse ducts 42 from which the air passes through return ducts 44 (two at each side of the engine) the air then passing through ducts 46 (two from each duct 44) in each of which is disposed combustion equipment 16, the gases passing through stub ducts 48 to the turbine. The exhaust gases from the power turbine discharge through outlet duct 56 and enter the heat exchanger 12 through ducts 58, 60, flowing over the heat exchange elements 36, finally discharging at 62. Valves 43, 61 are provided whereby the engine may be operated without using the heat exchanger when the latter requires to be serviced. Each heat exchanger element comprises a series of plates 100 shaped so as to form a series of passages 112 through which air to be heated flows, the fins 102 receiving heat by flow of turbine exhaust gases therepast. The manner in which the heat exchange elements 36 are connected to the lower manifold 38 is shown in Fig. 12: the recessed portions 112 of the plates 100 project through an opening in the manifold 38 between side plates 142. A liner member 130 is disposed within the manifold so as to define an annular space 134 there between, the liner having an opening 136 at its lower part. Air flowing downwardly through the passages 112 thus has to flow around the annular space 134, through the opening 136 into the central duct part before flowing through ducts 40 to the transverse ducts 42.
Patent GB-182289-A (GB)
Title: Improvements in the preparation of a tanning agent for the chrome tannage of leather
IPC: C14C3/06
Filed: 1921-05-26
Abstract: A chrome-tanning liquor is obtained by reducing chromic acid from bichromate and sulphuric or hydrochloric acid by means of dried whey powder, prepared from waste whey produced in cheese manufacture.  The solution of bichromate is stirred during the addition of acid, which in the case of sulphuric acid heats the liquor to boiling, and the dried whey powder is added to the hot solution.  The proportions of bichromate and acid are calculated so as to give the product Cr(OH)SO4 or Cr(OH)Cl2.
Patent GB-1349206-A (GB)
Title: Filler caps for radiators
IPC: F01P11/02
Filed: 1971-05-13
Abstract: 1349206 Radiator caps SOC ANON DES USINES CHAUSSON 13 May 1971 [13 May 1970] 14709/71 Heading B8T [Also in Divisions F2 and F4] A radiator filler cap incorporating an overpressure and underpressure valve arrangement comprises a moulded one piece cover 1 of thermoplastic material having a peripheral flange from which locking projections 10, 11 extend inwardly to engage an outwardly extending flange 12 on the filler pipe 2. The cover 1 also has an annular resilient flange 34 which bears against the inner face of the filler pipe, and a central stud 20 supporting a double valve assembly which is urged towards a retaining head 21 on the stud 20 by a spring 27. The valve body 23 has a slot 24 which enables the valve assembly to be placed over the head 21. Mounted below the valve body 23 is a resilient diaphragm 30 having an inturned peripheral flange 30a engaging the rim 28 of the valve body, and a central boss 31 which normally closes an aperture 32. Apertures 33 are provided in the diaphragm 30. The spring 27 extends between a bearing surface 19 on the cover 1 and a collar 37 slidably mounted on the valve body 23. In the case of an overpressure in the radiator, the diaphragm 30 and valve body 23 are displaced upwardly against the pressure of the spring 27 so that fluid can pass to an overflow duct 36. In the case of an underpressure, the pressure acting on the boss 31 will cause the diaphragm to flex away from the valve body 23 and open aperture 32 so that air can enter the radiator via apertures 32 and 33.
Patent GB-1108308-A (GB)
Title: Magnetically driven pump
IPC: H02K7/11
Filed: 1965-04-07
Abstract: 1,108,308. Magnetic couplings. GLOBE INDUSTRIES Inc. 7 April, 1965 [20 May, 1964], No.14752/65. Heading H2A. [Also in Division F1] In a pump of the type that is driven by magnetic coupling members 28, 52 on opposite sides of a planar dividing wall 30, the driven magnet 52 has a smaller moment of inertia than the driving magnet 28. As shown, a shaft 6, driven by an electric motor, carries a flange 24 which is joined to a backing plate 26, bonded to a ceramic magnet 28. A centrifugal pump 40 is journalled on a shaft 34 having a head 38 moulded into a plastic dividing wall 30 and is driven by the magnetic coupling between the magnet 28 and a further magnet 52. The end 46 of the shaft 34 is spherical so as to improve the passage of liquid from the inlet 12 through the pump 40.
Patent GB-276108-A (GB)
Title: Improvements in or relating to hose-couplings
IPC: F16L37/113
Filed: 1926-06-11
Abstract: 276,108. Stove, A. E. June 11, 1926. Couplings, disconnectible.-In a hose coupling of the type comprising a tail piece 10, to which the hose is secured, a coupling ring 17 and a washer ring 19, all three parts being so constructed that they are rotatable relatively to one another, fluid-tightness between the ring 19 and the tail piece 10 is secured by a packing 22 of circular cross-section which is positioned between substantially semi-circular grooves 20, 21 in the washer ring and on a flange 12, integral with the tail-piece, respectively.
Patent GB-969673-A (GB)
Title: Improvements in and relating to the separation of hydrogen from gaseous mixtures containing hydrogen
Inventor: DARLING ALAN SYDNEY
IPC: C01B3/50
Filed: 1962-04-17
Abstract: 969,673. Hydrogen diffusion membranes. JOHNSON MATTHEY & CO. Ltd. March 8, 1963 [April 17, 1962], No. 14812/62. Heading B1L. A hydrogen diffusion membrane comprises a flat-sided hollow element or envelope formed of two superposed layers or sheets of a hydrogen permeable material united together along the whole or a major proportion of their edge portions, and a porous sheet-like stiffening member located within the envelope to prevent distortion but permit passage of hydrogen therethrough. The envelopes may be formed of two rectangular sheets joined along three pairs of edges but open on the fourth pair or joined on all edges but having opposed apertures in the two sheets through which a tube passes, this tube having one or more perforations to allow hydrogen to pass into the tube. One modification has envelopes made of circular or oval sheets whilst another has the two layers formed by a single rectangular sheet folded over on itself along its longitudinal axis and having the free longitudinal edge and one or both end edges united together. The hydrogen permeable material may be Pd or an alloy thereof, e.g. 25% Ag-Pd. The porous stiffening member may be a fine mesh gauze of stainless steel or other metal or alloy unaffected by the conditions of operation and should substantially fill the interior of the envelope. The stiffener may be of similar thickness to the thickness of the sheet and may be mounted in a header in the open end of the envelope. A hydrogen diffusion unit comprises a plurality of such membranes mounted on a common support within an outer casing. In Fig. 4 the gaseous mixture containing hydrogen enters at 16a and the hydrogen diffuses through circular membranes 14 and out through pipe 15. In Fig. 5, the stiffener within the envelopes 17 may be in the form of a wire gauze mesh bent into two with the two parts thereof strengthening consecutive envelopes.
Patent GB-1463289-A (GB)
Title: Diaphragm cells having horizontal electrodes and method of operation thereof
IPC: C25B9/19
Filed: 1975-04-11
Abstract: 1463289 Horizontal diaphragm cell PPG INDUSTRIES Inc 11 April 1975 [12 April 1974] 14909/75 Heading C7B In an electrolytic cell 1 divided horizontally by a permeable barrier 11 into an anolyte chamber 21 containing a horizontal anode 23 and a catholyte chamber 31 containing a horizontal cathode 33 respectively above and below the barrier, alkali metal (e.g. Na or K) Cl brine is fed to the anolyte chamber e.g. through sparger (78), Fig. 3 (not shown), electrical current is passed to generate chlorine on the anode and hydrogen on the cathode, the chlorine is collected as a gas pad 41 at superatmospheric pressure above the anolyte in the anolyte chamber and withdrawn therefrom via line 43 to a liquid-containing tank 51 where it is discharged into the liquid 53 therein while maintaining the liquid level 55 above the anolyte level sufficient to augment the flow of anolyte through the barrier against the hydrogen pressure to the catholyte chamber. Preferably the chlorine is discharged into the tank 51 upwardly via conduit 58 into a bubble cap 59, and recovered via pipe 54. The liquid level 55 may be regulated by movable pipe 60 to vary the pressure of chlorine in the tank 51. Excess brine may be fed and excess anolyte recovered (with the evolved chlorine), resaturated with brine and recycled. The barrier 11 may be cation permeable and provided by chrysotile asbestos diaphragm deposited on to the upper surface of the cathode from a slurry, or as paper or cloth. The asbestos diaphragm may be treated with a resin having fluorocarbon. The electrodes may be formed by bi-polar units (61, Fig. 3), each with cathode 33 and anode 23 joined by conductive studs or spring clips (68). The cathode may be in the form of Fe, Co, Ni or steel (expanded) mesh, rods or perforated plate; the anode may be of valve metal (Ti, Zr, Hf, Nb, Ta or W) preferably coated with a Pt group metal or alloy oxide or compound thereof, e.g. alkaline earth metal ruthenate/ite or rhodate/ite, Co palladite or platinate or Ru titanate/ite, or mixed oxides such as Ru02 or RhO 2  and TiO 2  or ZrO 2  with or without Sn or Pb oxide, Bi, Sb or As. A horizontal mercury cathode cell, with diaphragm, Fig. 4 (not shown) and inclined catholyte chamber bottom, may be used.
Patent GB-956390-A (GB)
Title: An improved vice
IPC: B25B1/24
Filed: 1961-04-25
Abstract: 956,390. Machine tool details. K. FUJII. April 25, 1961, No. 14930/61. Heading B3B. In a quick adjustment vice having a stationary jaw 3 keyed by means of a handle 5 to an outside shell member 2 and a movable jaw 6 having a relatively long cylindrical part 7 which telescopes in a cylindrical part 4 of the stationary jaw 3, a rotatable spindle 8 is mounted in the movable jaw 6 and a cylindrical nut 14 is provided having a continuous internal thread for engagement with a continuous thread 8<SP>1</SP> on the spindle and partial external threads 14<SP>1</SP> for engagement with a partial internal thread 19<SP>1</SP> on the shell 2. The nut 14 is provided with stops 21 corresponding in number to the groups of teeth of the partial thread. The jaws 3, 6 are formed as hollow members, the jaw 3 being angularly adjustable by the handle 5. Spring means such as a spring 18 is provided between a plug 15 fixedly mounted on the spindle 8 and the nut 14 to prevent movement therebetween as the spindle is rotated to bring the teeth 14<SP>1</SP>, 19<SP>1</SP> out of engagement. In a modification, Fig. 7, the nut 14 is formed with a concentric groove 17a in which a correspondingly curved bar 18b is inserted and urged to move in one direction by a spring 18c, the opposite end of the rod extending outwardly in the form of a projection which is positioned relatively to one of the groups of partial threads. In another modification, Figs. 9, 10 (not shown), the main body of the vice is rotatably fixed to a base member.
Patent GB-836314-A (GB)
Title: Improvements relating to sliding clasp fasteners
IPC: A44B19/12
Filed: 1958-05-09
Abstract: 836,314. Making sliding clasp fasteners. CUE FASTENER Inc. May 9, 1958, No. 14948/58. Class 83 (2). [Also in Group XXV] A method of forming a fastener member for a sliding clasp fastener comprises bending a continuous filament or wire 10 into a substantially sinusoidal shape and passing it endwise through a rolling-machine, not shown, which presses out flat fastener elements 11 along a centre line A-A and provides notches 12 and troughs 14 of the filament. The crests 13 and troughs 14 are then folded towards each other about the line A-A to form a row of relatively close fastener elements 11 connected by loops 13, 14. Fig. 3 shows the relationship between the fastener elements 11, 11<SP>1</SP> of two fastener members 10, 10<SP>1</SP>, endwise movement of which is prevented by drawing the stitches of the sewing thread tightly down into the notches 12. In a modification the crests 13 and troughs 14, before being bent toward each other, are twisted at right-angles to form loops. In a further modification the crests and troughs of the filament are bent in opposite directions around a small diameter mandrel to provide small loops. An alternative arrangement shows a fastener member which is first bent into a generally rectangular form. The filament may have various cross-sectional shapes.
Patent GB-548999-A (GB)
Title: Improvements in radioscopic and radiographic apparatus
IPC: G02B27/02
Filed: 1941-11-20
Abstract: 548,999. R÷ntgen-ray apparatus. PHILIPS LAMPS, Ltd., and WEST, S. W. Nov. 20, 1941, No. 14953. [Class 98 (i)] In apparatus for radioscopy and radiography separate carriers are provided for the photographic cassette and fluorescent screen respectively and are adapted to be alternatively mounted in the operative position with the photographic emulsion and the screen in substantially identical positions. In the form shown an adjustable pedestal carries a frame 2 covered by a raypermeable plate 3, forming an accessory for use below an X-ray table or itself constituting the table, in which latter case it may carry the tube 20. The cassette carrier 4, which may include a Bucky diaphragm, is pivoted to links 9 which are also pivoted to member 10 slidable along inclined rails 11. When it is to be used, it is raised from the pendant position shown in broken lines and rollers 5 at its sides are engaged with inclined rails 6, along which it is slid until beneath the top plate 3. A locking lever 7 is then moved to engage one of the rollers to lift the cassette at the 'front end from the rails and into parallelism with the top plate. The screen carrier is formed as a fluoroscope, comprising a screen 16 viewed by reflection from a mirror 17 through a visor 18, and is provided with rollers corresponding to the rollers 5 on the cassette and is similarly supported after withdrawal of the latter to the inoperative position. In a modification, the frame 2 is movable along longitudinal rails on the underside of an X-ray table. The fluoroscope and cassette holder may be pivotably attached to one another for simultaneous movement, the one not in use hanging at one side of the table, and a latch being provided to maintain the two in horizontal alignment during the interchange movement.
Patent GB-1344506-A (GB)
Title: Filament coiling apparatus
IPC: B29D5/06
Filed: 1971-05-14
Abstract: 1344506 Filament coiling H U SOHR 14 May 1971 [14 May 1970] 13011/71 Heading B8G [Also in Division D1] Filament coiling apparatus comprises a cylindrical filament guide 22 rotatable in support rings 12, 14 and about winding mandrel 36 which is supported by bearings 30, 34 in the guide and which is asymmetrically disposed relative to the guides' rotation axis 16 to prevent it being continuously rotated by the guide. Filament 48, which may be a synthetic monofil, fed via guide passage 54 to be wound on, and withdrawn from, mandrel core 58. The filament is wound on the core via conical surface 60 and about twine 64 fed from mandrel-mounted reel 40 through mandrel passage 70. The twine may be a twist crimped thread. The bobbin may be mounted transverse to the mandrel. Part-rotation of the mandrel may be prevented by members which engage a cranked portion of the mandrel core. The guide may be heated. A sleeve for heating and guiding the falling twine may be provided in the winding mandrel. The use of the coiled filament in the manufacture of sliding clasp fasteners is referred to.
Patent GB-1410882-A (GB)
Title: Flow control valves
IPC: B60T13/14
Filed: 1973-03-29
Abstract: 1410882 Control valves GIRLING Ltd 6 March 1974 [29 March 1973] 15028/73 Heading F2F A flow control valve for use in vehicle hydraulic systems comprises a piston 3 in the form of a sleeve 4 which controls a normally open tilting valve 17 and a normally closed tilting valve 21 respectively connected to a reservoir and a high pressure source and also to pressure spaces 6, 7, there being a one-way valve 25 cooperating with axial passages 19 in a radial flange 5 of the piston 3, to permit flow between the spaces 6, 7 in one direction, and an orifice 28 in the wall of the piston 3 which permits a metered flow of fluid past the piston when the one-way valve 25 is closed and defining the sole flow path between the spaces 6, 7. In operation, rightward movement of a main piston 13 and rod 12 under a pedal pressure is followed by piston 3, which moves a shoulder 24 thereon out of engagement with the stem 22 of tilting valve 17 to close the latter, further movement opening tilting valve 21 to allow pressure fluid to be applied to space 7 where it acts on a secondary piston 29 to cause the latter to advance in a bore 30 of a plug 8 to apply thrust to an output member 31 connected to the piston of a master cylinder. Fluid pressure is built up in pressure space 6 through passages 19 and also acts on the piston 3 to move it in a direction to allow tilting valve 21 to close. This movement is resisted by valve 25 which is acted on by pressure in space 6 and engages flange 5 to cut off communication through passages 19 thereby reducing movement of piston 3 and delaying closure of valve 21. Fluid is then metered through passages 19, radial passages 18 and orifice 28 until a balanced condition is obtained whereby valves 17, 21 are both closed. On release of pedal pressure, piston 3 returns to its original position during which tilting valve 17 is opened thereby communicating pressure space 7 with the reservoir through passages 19 and 18, movement of piston 3 being resisted by fluid trapped in pressure space 6 which can only return to the reservoir as a metered flow through orifice 28 since valve 25 is closed.
Patent GB-218286-A (GB)
Title: Improvements in filters
IPC: B01D29/01
Filed: 1924-06-23
Abstract: 218,286. Schott & Gen., (Assignees of Zeiss, C. [Firm of]). June 27, 1923, [Convention date]. Block filters; filtering- media.-A porous body of fritted glass particles is fused into a containing vessel of non-porous glass having the same thermal coefficient of expansion. The Figure shows a porous plate of two superposed parts b<1>, b<2>, the part b<1> being of coarser particles than the part b<2>, and the part b<2> being reinforced by a grating c of non-porous glass.
Patent GB-1234685-A (GB)
Title: Preparation of pyruvaldehyde
IPC: C07C45/52
Filed: 1969-03-21
Abstract: 1,234,685. Pyruvaldehyde. WM. WRIGLEY, JR. CO. 21 March, 1969 [21 March, 1968], No. 15084/69. Heading C2C. Pyruvaldehyde is prepared by the gradual addition of an aqueous solution of dihydroxyacetone to a water-immiscible organic liquid maintained at 100 to 200 C. in the presence of an acidic catalyst, e.g. H 2 SO 4 , p-CH 3 .C 6 H 4 - SO3H, H 3 PO 4 , KHSO 4  or an ion exchange resin.
Patent GB-693665-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60P3/42
Filed: 1951-06-26
Abstract: 693,665. Road vehicle body details; spring suspensions. LUDOWICI, J. W. June 26, 1951 [Dec. 27, 1948], No. 15133/51. Classes 108 (i) and 108 (ii). [Also in Group XXXI] The head 2 and tail parts 3 of a motor vehicle are connected together by a top chassis frame having two transverse yokes 10, 11 to each of which is secured two pillars 14-17 each supported on a bogie, a clear space being left beneath the frame in which is suspended a useful load container 4. The yokes are of either rigid or resilient construction and the container 4 is detachable and rigidly or resiliently suspended from the yokes. Each of the pillars 14-17 consists of a hydraulic cylinder so that the height of the frame can be varied and may be pivotably or resiliently mounted on its yoke. The bogies are rotatably mounted on the pillars. Two driving motors are so mounted in the front compartment that they may be removed through the flaps in the side of the compartment for repairs if necessary. This compartment is entered through a door in the front of the compartment which opens upwardly. The rear section has a flap which may be raised so that air pressure acting on it tends to keep the vehicle on the ground. The detachable load container may have wheels and an auxiliary engine, so that it may be removed laterally; its access doors open upwardly and downwardly. Spare wheels may be mounted on vertical spindles at the front and rear of the vehicles to act as bumpers.
Patent GB-790541-A (GB)
Title: Improvements in or relating to differential gears
Inventor: FERGUSON HENRY GEORGE
IPC: F15B21/00
Filed: 1953-06-01
Abstract: 790,541. Controlling differential gearing. MASSEY - HARRIS - FERGUSON (GREAT BRITAIN), Ltd., [formerly MASSEYHARRIS-FERGUSON (MANUFACTURING), Ltd.]. June 1, 1954 [June 1, 1953], No. 15135/53. Drawings to Specification. Class 80(2). The Specification repeats the description of Figs. 1 to 7 of Specification 790,542, but the claims differ. Specification 687,341 also is referred to.
Patent GB-1462994-A (GB)
Title: Stabilized aspirin
IPC: A61K47/10
Filed: 1974-04-05
Abstract: 1462994 Stabilised aspirin RESEARCH CORP 5 April 1974 [13 April 1973] 15154/74 Heading A5B A stabilised aspirin composition, preferably anhydrous, comprises a mixture of aspirin and a polyhydric alcohol having at least one terminal OH group, the protein of which is replaced by a blocking group such that transerterification between the polyhydric alcohol and aspirin is at least partially hindered. The blocking group may be formyl, acetyl, propionyl, butryyl or C1-C4 alkyl. The polyhydric alcohol may be a polyalkylene glycol, a poly (alpha, #)-alkylenediol, an alkylenediol or an alkanetriol. In the Examples, methoxypolyethylene glycol and polyethylene glycol acetate are used as the blocked polyhydric alcohols. The compositions are said to be more stable than those wherein unblocked polyhydric alcohols are mixed with aspirin in liquid form.
Patent GB-438777-A (GB)
Title: Improvements in and relating to turret lathes
IPC: B23Q5/34
Filed: 1935-05-24
Abstract: 438,777. Turret lathes. PITTLER WERKZEUGMASCHINENFABRIK AKT.- GES., Wahren, Leipsic, Germany. May 24, 1935, No. 15187. Convention date, Oct. 31, 1934. [Class 83 (iii)] A turret lathe is provided with a facing device comprising a tool 4 carried on a bell-crank lever 1, 2, actuated by a cam piece 6 secured to the turret 8. During the forward movement of the turret slide 14, a tool 13 turns the peripheral surface of the work 11 and at the same time the lever 1, 2 is actuated to take a facing cut over the end surface a. The lever may either be mounted on a separate shaft 3 or on a shaft forming part of the machine.