baber/WOPTO huggingface dataset:
Patent GB-797777-A (GB)
Title: Improvements in or relating to a catalytic internal combustion engine exhaust purifier
IPC: F01N13/14
Filed: 1956-05-25
Abstract: 797,777. Purifying and cooling exhaust. OXY-CATALYST, Inc. May 25, 1956 [May 31, 1955], No. 16298/56. Class 7(2) To maintain under normal engine operating conditions the temperature of a catalyst, over which exhaust gases from engines operating on leaded petrol pass, between 700‹F. and 1400‹F., and in any case below 1500‹F. at the catalyst surface so that lead compounds deposited on the catalyst do not form a fused coating thereon, the following steps are taken:-(1) the engine air-fuel ratio is controlled, preferably within the range 12: 1 to 15:1, (2) air is used to dilute the exhaust gases, e.g. in the range of ratios from 0.5: to 2:1, (3) catalyst pellets are used having average dimensions within the range 1-32 in. to 3-8 in., e.g. in the form of spheres or cylinders of diametral length. Exhaust gases are adjustably diluted with air at 14 and pass through a bed of catalyst pellets 4 confined between stainless steel grids 5 in an insulated chamber 1. Partitions 6 welded to the upper grid 5 form compartments partially filled via stoppered orifices 7 with the pellets 4. The grids 5 are so mounted as to be freely expansible. The catalyst may be an activated oxide, such as alumina, beryllia, thoria, magnesia or zirconia, impregnated with finely divided platinum, palladium, ruthenium, silver, copper, nickel, cobalt, or silver-chromium, copperchromium or copper-manganese, alumina impregnated with 0.05 to 0.5 per cent by weight ot platinum being preferred.
Patent GB-742743-A (GB)
Title: Improvements in and relating to typewriter or similar office machine feed mechanisms
Inventor: UNTIEDT TRYGGVE
IPC: B41J17/00
Filed: 1953-06-12
Abstract: 742,743. Typewriters. &c. MODERNE FORRETNINGSUTSTYR AKTIESELSKAP. June 12, 1953, No. 16311/53. Class 100 (4). An apparatus for feeding superimposed layers of paper from a supply carrier, movable with a carriage, with provision for intermittent return movement of interleaved carbon paper, comprises a supply plate 11 for the paper and a carrier 25 both mounted on a carriage 4 running on rails 7, 8. The carrier 25 is adjustably mounted on the carriage 4 by arms 15, rods 17 and a holder 18 which also supports a bar which adjustably carries arms 20 which clamp on to the side wall 22 of the typewriter carriage. A front frame 27 having guide rails 31 for a carbon paper runner 32 and supporting a drum 30 is mounted on an axle 29 attached by lugs 28 to the carrier 25. A transverse part of the carrier 25 pivotally supports a stay frame 42 which is connected by straps 40 to the runner 32. In use the paper web 13 is clamped to the yoke 41 of the stay frame 42 after interleaving of the carbon sheets with linear clamps. During typing the stay frame 42 rises and the runners 32 descend so that the combined webs are fed by the typewriter without undue tension. On completion the web 13 can be unclamped from the yoke 41 by a lever 54 and the stay frame lowered by grips 55 the runner 32 being pulled to the upper position thus moving the carbon papers between the layers of the paper web 13.
Patent GB-809796-A (GB)
Title: Improvements in or relating to high-pressure apparatus
Inventor: HOLLINGS JOHN SHAW
IPC: F16L55/00
Filed: 1956-05-25
Abstract: 809,796. Pipe systems. ROLLS-ROYCE Ltd. May 24, 1957 [May 25, 1956], No. 16330/56. Class 99(1). In apparatus comprising components, e.g. a nuclear reactor 10 and a heat-exchanger 12, through which a fluid at high temperature and pressure is circulated and connected by a pair of pipes, the latter are arranged one within the other so that fluid flows in one direction between the components through the inner pipe and in the opposite direction in the space between the pipes. The outer pipe 13 is of thick section to withstand the fluid pressure loads, and the inner pipe 14 is relatively thin and incorporates means capable of accommodating expansion and contraction. As shown, the pipes 13 open into a cooling- water outlet 16 of the reactor and cooling- water inlet chambers 17 of the heat-exchangers whilst the pipes 14 are connected to a cooling- water inlet chamber 18 at the lower end of the reactor core 11 and elbows 19 in the heatexchangers and leading to water-circulating pumps 21. To accommodate both differential thermal expansion between the pipes 13, 14 and the major expansion as between operating and non-operating conditions, sliding expansion joints or flexible bellows are provided between the ends of the pipes 14. Cooling water passes from the chamber 18 to the chamber 16 and through the space between the pipes to the chambers 17, and from the chambers 23 of the heat-exchangers via the pumps 21 back to the chamber 18.
Patent GB-356192-A (GB)
Title: Process for the manufacture of complex salts of organic compounds containing phenolic groups
IPC: C07C205/22
Filed: 1930-05-27
Abstract: Complex salts of organic compounds containing phenolic groups are made by incorporating ammoniacal solutions of metal salts with solutions of organic compounds containing phenolic hydroxyl groups and negatively substituted in the phenolic nucleus by one or more groups, none of which is more acid than the phenolic group.  The products, which contain ammonia and the metal, are of use in combating pests and as preservatives.  In examples, (1) 2 : 3 : 5-trichlor-4-hydroxy-1-methylbenzene is treated with copper ammonium sulphate in water or methanol, or with the product obtained by treating cupric chloride with ammonia and acetic acid; (2) 2 : 4-dinitrophenol and 2 - 4-dichlorphenol are treated with copper ammonium sulphate in water; (3) 2 : 3 : 5-trichlor-4-hydroxy-1-methylbenzene is treated with an ammoniacal solution of zinc chloride; (4) 2-chlor-4-nitrophenol, dissolved in methanol, is treated with an ammoniacal solution of copper acetate; (5) 4-nitrophenol, dissolved in methanol, is treated with an ammoniacal solution of copper formate; and (6) 2 : 4-dichlorphenol, dissolved in methanol, is treated with an ammoniacal solution of zinc acetate.
Patent GB-849883-A (GB)
Title: Electric signal circuits including loaded transmission lines
IPC: H03H7/38
Filed: 1959-05-14
Abstract: 849,883. Impedance-matching networks. WESTERN ELECTRIC CO. Inc. May 14, 1959 [May 22, 1958], No. 16540/59. Class 40(8). An inductively loaded transmission line 10 is matched to an amplifier 9 having a pass-band extending beyond the cut-off of the line by means of a network 8 comprising an inductor shunted by a capacitor and a resistor in series, these elements being proportioned to build out the impedance of the line to an approximately constant impedance over a band extending both below and above cut-off. The line is periodically loaded by lumped inductors of value L, each equal section between the inductors having a distributed capacitance C. The balanced network of Fig. 2 is suitable for termination of the line at full-section. The series branches are chosen to provide a positive reactance with a broad peak near the cut-off of the line and a resistance which increases from a low value at low frequency to a value of e.g. about 1000 ohms at a little above the cut-off frequency. The insertion loss of the network must be kept low near cut-off. Values of elements which fulfill these conditions are: L 1  = 0À37L, C 1  = 0À58C, R 1  = 0À68 #L/C. If the network is used with a line terminated in a fractional section X, the capacitor C 4  = C(1 - X) and resistor R 4  = r(1 -X)/2 are added to build out the line to full section (r is the resistance of a full section). These elements may be adjustable and the resistors may be omitted if X is greater than 0À2. The matching of the line at frequencies below I kc. may be improved by the shunt branch R 2 , C 2 , L 2  which may be placed on either side of the series branches. C 2  may be omitted where a high shunt impedance at higher frequencies is not necessary. The overall impedance may be increased by resistors R 5 . As shown in Fig. 7, the line LC is terminated at mid-section and matched to a negative-impedance amplifier 36. The curves 42, 43, Fig. 8, show respectively the resistive and reactive components of a typical mid-section image impedance of the line. The value C 3  = 0À3C is chosen to build out the line to approximately 0.8 section. Shunt resistor R 3  is made equal to the minimum mid-section impedance of the line in the pass band and improves the high-frequency matching. For the series branches, values L 1 # L/4 and C 1  = 1/  (2 #f 1 )2L 1  are chosen to add a positive reactance at a frequency f 1  just above cut-off. R 1  is chosen experimentally and has a value just below the non-reactive output impedance of the amplifier 36. The curves 50, 51 indicate the corrected characteristics. These show increasing values at the low frequency end which may be corrected by the addition of shunt branch R 2 ,C 2 , L 2 , the extent of the correction being indicated by the curves 52, 53.
Patent GB-126054-A (GB)
Title: Pneumatic Springs for Vehicles which Move on Endless Chains.
Inventor: STROMEYER JOHANN PHILIP EDMOND
IPC: B62D55/10
Filed: 1916-11-18
Abstract: 126,054. Stromeyer, J. P. E. C. Nov. 18, 1916. No patent granted (Sealing fee not paid). Pneumatic springs.-Vehicles supported on endless tracks are provided with pneumatic springs which can be adjusted to suit local conditions. Fig. 1 shows part of a spring suspension for a vehicle running on endless chains Ch. The members U of the framing carry a series of cylinders C each having two holes a, o, the lower hole o being arranged just above the highest position of the piston P. The pistons P have frames X with branches W adapted to engage T or U-shaped guides G on vertical members F of the framework. Columns Z and annular rings A acts as stops for the pistons. Compressed air is admitted or withdrawn through the holes a, and the capacity of the clearance spaces' above the pistons is varied by pumping oil through the holes o.
Patent GB-220762-A (GB)
Title: Improvements in or relating to sprocket wheel clutches
IPC: F16D3/66
Filed: 1923-06-26
Abstract: 220,762. Hancock, R. G., and Brown, E. B. June 26, 1923. Clutches, claw. - The engagement of a clawclutch 13, 14 for coupling a driving-shaft 4 to a chainwheel 1 is cushioned for one direction of drive by circumferential springs 9 normally maintaining in contact alternate lugs 7, 8 on the non-sliding clutch member 6 and the toothed rim 2 respectively. The annular space between the parts 2, 6 is enclosed by a flanged ring 10. The boss 3 of the wheel 1 may be fitted with a Stauffer lubricator. In a modification, the rim 2 bears only on a machined face of the periphery of the member 6, cushioning-springs being disposed on both sides of the rim in enclosed annular spaces.
Patent GB-652930-A (GB)
Title: Improvements in auxiliary air admission means for internal combustion engines
IPC: F02D9/00
Filed: 1948-06-21
Abstract: 652,930. Admission devices for extra air. GUINCHARD, J. E. June 21, 1948, No. 16601. [Class 7(ii)] An extra air admission device comprises valve means consisting of flat plates 8, 9 controlling an air port 5 in a tube 4 leading to the intake manifold, and operated conjointly with the throttle valve so that the port 5 is only opened during closing movements of the throttle valve. The tube 4 is soldered to the back of a plate 1 provided with a mounting flange 3 and having a slot coinciding with the port 5. The plates 8, 9 are freely pivoted on a spring-loaded bolt 7 which holds the plates against the front face of the plate 1, ports 10, 11 being formed in the plates for registration with the port 5. The plate 9 has a pin 17 connected by a link to the throttle valve operating mechanism, and two pins 13, 14 which co-operate with the forked end 12 of the plate 8 to provide lost motion between the plates, during which the plate 8 is held by a spring 18. When the throttle valve is in the closed or idling position, the ports 10, 11 coincide, Fig. 2, but they are out of register with the port 5 which is closed by the plate 8 and no extra air is admitted. On opening of the throttle valve, lost motion occurs between the plates 9, 8 until the pin 13 contacts plate 8, whereby the ports 10, 11 are moved out of coincidence, and the plates then move together so that no air enters port 5 during the opening movement. On closing movement of the throttle valve, reverse lost motion occurs until the pin 14 contacts the plate 8, whereby the ports 10, 11 are brought into coincidence and extra air is admitted whilst they register with the port 5. The tube 4 may form part of the suction pipe of a windscreen-wiper motor actuated by the intake manifold suction.
Patent GB-1285703-A (GB)
Title: Filtering process and apparatus
Inventor: KALMAN PETER GABOR
IPC: B29C48/08
Filed: 1968-09-03
Abstract: 1285703 Moving band filter P G KALMAN 3 Sept 1969 [3 Sept 1968] 16690/72 Divided out of 1285702 Heading B1D The description concerns the first embodiment of co-pending Specification 1285702 but the claims are directed to the process and apparatus whereby channels 3, 4 through which filter band 60 enters and leaves passage 2 are sealed by plugs of material other 'than the material being filtered. Particularly paraffin wax seals at least the outlet channel 4 when filtering brine, the wax being continuously extruded, recovered from band 60 by heater 46 and recycled by pump 45, which is controlled by a radiation absorption detector or electrical conductivity or dielectric constant detector monitoring the position of interface 64 between wax and brine in channel 4. The wax could be dyed to facilitate monitoring by visible light absorption. A third substance may form a barrier between the two materials.
Patent GB-113263-A (GB)
Title: Improvements in and relating to Moulds for Casting Metal.
IPC: B22C9/06
Filed: 1917-11-14
Abstract: 113,263. American Die Casting Co., (Assignees of Tarbert, C. W.). Feb. 9, 1917, [Convention date]. Moulds; clamping.-Relates to moulds provided with means for ejecting the casting and consists in a two-part mould in which the ejector forms a part of the matrix when the half-moulds are together, and which ejects the casting from both when they are separated. The flask 2 is guided by rods 6 attached to the other flask. On each rod is a rack in gear with a pinion carried on a shaft 8 mounted in brackets attached to the flask 2. The ejector 12 is cylindrical, and is shaped at its centre to form a part of the matrix. It has at each end a head 17, 18 moving! in enlargements 14, 15 in the flasks, closed by plugs 22, 23. The flasks are separated by rotating the pinions by means of a lever 11. Should the casting adhere to either flask it is detached by the head 17 or 18 coming in contact with the shoulder 19 or 20.
Patent GB-338924-A (GB)
Title: Improvements in or relating to the treatment of cast iron
Filed: 1929-05-31
Abstract: 338,924. Burgess, A. F., (Link-Belt Co.). May 31, 1929. Annealing; case-hardening.-Malleable cast iron is heated to a temperature sufficient to cause the formation of iron carbide, cooled or quenched, again heated to a temperature below the carbon combining temperature, and finally cooled or quenched. The first temperature may be about 1475‹ G. and the, second about 1200‹ F. If the product is to be galvanized by dipping, the second temperature is above that used in galvanizing. In some cases, the first heating may be carried out in the presence of a carburizing agent to form a wear-resisting surface. Specification 338,925 is referred to.
Patent GB-543528-A (GB)
Title: Improvements in or relating to the production of adhesive aluminium foils
IPC: C09J7/28
Filed: 1940-11-25
Abstract: 543,528. Compound sheet materials. RADO, L. Nov. 25, 1940. No. 16856. [Class 140] [Also in Group XXII] Aluminium foil is rendered adhesive by applying thereto a water-soluble hide glue which is either mixed with a water-soluble glue of another consistency such as vegetable glue, albumen or casein or forms an outer coating, the vegetable glue &c. forming an intermediate coating. The foil is thus rendered flexible without breaking away of the hide glue. The other side of the foil may be coated with a non- fibrous cellulose product applied either in liquid form or as a layer stuck by adhesive thereto.
Patent GB-901075-A (GB)
Title: Improvements relating to compressor blades
Inventor: HANNAH CLIFFORD GEORGE
IPC: F01D5/28
Filed: 1960-05-12
Abstract: 901,075. Compressor blades. ROLLSROYCE Ltd. May 8, 1961 [May 12, 1960], No. 16870/60. Class 110 (3). A compressor blade formed of resin-bonded fibrous material has a proportion of longitudinal, i.e. spanwise fibres, and a proportion of lateral fibres, at least some of the latter forming an outer surface layer on the root of the blade. By the term " lateral fibres " is meant fibres which are disposed at an angle of 45 degrees or greater to the longitudinal axis of the blade. The blade shown in Fig. 1 is a rotor blade formed of resin-bonded fibre glass, and comprises longitudinally arranged glass fibres 13 folded round an insert 12, which may be a reinforced thermosetting plastic, so as to form a root portion 11 and an aerofoil portion 10. The glass fibres are bonded by an epoxy resin 14. On the outer portion of the root, on top of the longitudinal fibres 13, one or more layers of lateral fibres 15 are bonded. In Figs. 2 and 3 internal layers of lateral fibres 16, 17 are provided, these lateral fibres being covered by layers 18, 19 of longitudinal fibres, and being disposed uniformly of either side of the mean chord line. The lateral fibres can be disposed either normal to the longitudinal axis of the blade as shown in Fig. 2 or inclined at an angle of between 60 and 90 degrees, preferably 65 degrees, to the longitudinal axis. The longitudinal fibres may be disposed at an angle of 0 to 15 degrees to the longitudinal axes. The glass fibres are preferably of boro-silicate glass. If the blades have to withstand high-temperature phenolic type resins should be used, and for even higher temperatures inorganic type resins should be used.
Patent GB-1538533-A (GB)
Title: Heat store
IPC: F24S90/00
Filed: 1976-04-27
Abstract: In a shaped body which is bound by cross-linked plastic and serves as a heat accumulator, a heat exchanger is embedded in crystalline heat storage substance. The maximum operating temperature of the heat exchanger is higher than the melting temperature of the crystalline substance. Expediently, the cross-linked plastic at the same time serves as the crystalline substance; this has the advantage that the solid state of aggregation is retained when the crystallites melt. A heat accumulator of this type can be employed as follows in a solar energy-harnessing installation: The heat accumulator (1) is interconnected with two solar energy absorbers (2, 3), two useful-heat exchangers (4, 5), two circulating pumps (6, 7) and various valves (8-11) to form two separate heat transfer fluid circuits. The heat accumulator (1) comprises two concentric blocks (13, 14) which are separated by an insulating layer (12) and are made of crystalline, cross-linked epoxy resin or polyurethane resin with crystallite melting temperatures of 45 DEG and 60 DEG C respectively. Embedded in the blocks (13, 14) there is one copper coil (16, 17) each, via which the heat exchange takes place between the circulating medium and the plastic blocks acting as latent-heat accumulators. The use of crystalline cross-linked plastic as the storage material permits a particularly expedient and straightforward construction of the heat exchanger. <IMAGE>
Patent GB-746805-A (GB)
Title: Improvements in or relating to filtering and decanter devices
IPC: A47J31/057
Filed: 1954-06-09
Abstract: 746,805. Infusers. CHEMEX CORPORATION. June 9, 1954, No. 17002/54. Class 129. [Also in Group I] In a tea or coffee making apparatus wherein leaves or grounds are held in a filter paper cone 1 supported by a glass funnel 2 and to which hot water is added and wherein the liquid extract is collected in a flask 3 integral with the funnel 2, air displaced from the flask by the liquid extract is vented through a hollow handle 5, a joint 6 and through the filter paper 1 to atmosphere. In a modification the upper end of the handle 5 opens directly to atmosphere.
Patent GB-1528041-A (GB)
Title: Process and composition for the treatment of wood
IPC: B27K3/40
Filed: 1975-04-24
Abstract: The wood is treated with a preparation which contains, as principal active ingredient, N-(1,1,2,2-tetrachloro-2-fluoroethylthio)methane-sulphonanilide. This controls attack of the wood by a wood-destroying fungi.
Patent GB-480504-A (GB)
Title: Improvements in apparatus for transferring demountable bodies
IPC: B60P1/64
Filed: 1937-06-18
Abstract: 480,504. Handling transferable loadcontainers. MOTOR TERMINALS, Inc. June 18, 1937, No. 17061. Convention date, June 27, 1936. [Class 78 (iv)] In apparatus for transferring removable load-containers between a railway and a road vehicle, of the kind in which the road vehicle is provided with guideways and propelling chains for guiding and moving the containers and also with pivoted transfer bridges at the rear for coupling to the side of the railway vehicle, the road vehicle is formed with bumpers or buffers at the ends of the guideways adjacent the bridges to secure exact, spacing between the car and railway truck and to protect the bridges during transport on the road, and the bridges themselves are shortened and of special construction. In the illustrated form the road vehicle is of the tractor-trailer type and the transfer mechanism is carried by the trailer. Two castings 10, bolted to the rear of the trailer, are each furnished with a projecting bumper 60 and carry bearings for a chain sprocket 22 and a cross-shaft 20 geared to a motor on the trailer. The drive of the propelling chains in both directions is communicated to the containers bv means of rigid connecting arms. The sprocket shaft 21 also carries a loose roller 31 and forms a pivot for a bail 32 carrying other rollers 35, 37 ; the bail and the three rollers forming one of the pivoted bridge members. The shaft 40 of the roller 37 projects beyond the bail at both ends and is adapted to engage turn-out brackets 50 pivoted to the truck, and be locked against detachment by the bar 45 with cranked ends. The bumper 60 engages a wooden bumper 58 on the car to position the parts for attachment. Should the vehicle not be backed squarely against the truck, one bail is engaged first, and then further backing of the vehicle causes it to pivot on this bail until the other bumper engages and the bail on the other side can be attached. During transit on the road, the bails rest on projections 62 in the bumpers and are protected by the latter.
Patent GB-367273-A (GB)
Title: Improvements in or relating to pneumatic tyred wheels for vehicles
IPC: B60B9/04
Filed: 1931-06-12
Abstract: 367,273. Wheels for vehicles. FRAME, G. S., Lower Lodge, Wivenhoe, Essex. June 12, 1931, No. 17071. [Classes 144 (i) and 144 (ii).] A wheel rim is built up of a plurality of rim sections carried by brackets which are connected to a rigid disc member in such a way as to be free to pivot, oscillate, or swing in the plane of the wheel but to be rigid to lateral movement at right-angles to the plane of the wheel. As shown, rim sections r are provided on brackets b which are pivoted at p, Figs. 1 and 3, to a rigid disc member d. The pivot points p are arranged at the points of intersection of the tangents t drawn from the bearing faces of the two rim sections of each bracket. In a modification, Figs.. 2 and 4, the brackets b are carried by springs s fixed at l to the disc d. The action of the springs s may be supplemented by leaf springs n. In another modification, a disc member d is provided at each side of the wheel. If a smaller number of brackets are used, floating rim sections may be provided to bridge the spaces between the brackets. The rim sections need not be arranged, as shown, in overlapping relation.