baber/WOPTO huggingface dataset:
Patent GB-738176-A (GB)
Title: An improved method of, and means for, heating feed water in steam boilers and water heaters
Inventor: SPANNER EDWARD FRANK
IPC: F22D1/06
Filed: 1952-11-21
Abstract: 738,176. Multitubular steam boilers. SPANNER BOILERS, Ltd. Nov. 19, 1953 [Nov. 21, 1952], No. 29437/52. Class 123 (2). In a steam boiler comprising a horizontal shell a in which is mounted a furnace tube b defined at its rearward end by a tube plate c from which a nest of horizontal fire tubes d extend to a tube plate e located at the remote end of the shell and forming one side of a smoke box f, the cold feed water is delivered from a perforated feed distributing pipe h into a space m between the tube plate e and a baffle plate i located transversely of the shell and spaced about one-quarter of the length of tubes d away from plate e, the water being retained and warmed in space m until it is displaced by addition of cold feed water, the warm water then flowing under the lower edge of baffle i into the main body of water in the shell. In this way the cooler ends of the tubes d are used to heat the incoming feed water. As shown in Fig. 2, the plate i is of part-circular form and is provided with holes j through, which pass the fire tubes d. Alternatively, the baffle consists of two wing plates connected by a number of rods which pass horizontally, vertically or diagonally between the fire tubes.
Patent GB-1004005-A (GB)
Title: Improvements in or relating to means for reducing the effect on the occupant of a vehicle of changes in the velocity of the vehicle
IPC: B64D11/06
Filed: 1962-07-31
Abstract: 1,004,005. Seats. LLOYDS BANK Ltd. and D. H. JOHNSON. Oct. 10, 1963 [July 31, 1962], No. 29461/63. Heading A4J. [Also in Division B7] A seat in a vehicle, e.g. an aircraft, is associated with means responsive to acceleration of the vehicle for accelerating the seat relative to the vehicle in the sense opposite to that of the vehicle's acceleration, thus reducing or nullifying the effect of these accelerations on the seat occupant. The seat is mounted on a platform 17 slidable in a transverse guide 18 by a hydraulic jack 16. The seat occupant is moved fore and aft by a jack 21 acting on the backrest. The jacks are operated by electro-hydraulic servovalves actuated by an accelerometer 47, and return to their mid-positions when the acceleration has ceased. The pilot's instruments 29 and controls 30 are movable by jacks 34, 38, 42 in unison with the seat, which may be an ejection seat. In another embodiment a crew capsule or passenger compartment is accelerated in response to accelerations of an aircraft. The invention may also be applied to road vehicles, tanks, ships and spacecraft.
Patent GB-790629-A (GB)
Title: Improvements relating to the moulding of blocks of plastic materials, such as butterand margarine
Inventor: DOLMAN HENRY JAMES
IPC: A01J21/02
Filed: 1954-10-13
Abstract: 790,629. Butter-moulding machines. BRECKNELL, DOLMAN & ROGERS, Ltd. Oct. 5, 1955 [Oct. 13, 1954], No. 29484/54. Class 87(2). Plastic material, e.g., butter or margarine is continuously fed from the outlet 9 of a feeder through a duct 8 to a moulding unit of a type which receives material intermittently, e.g., a drum 11 rotated in steps and carrying a series of moulds, and when the inlet to the moulding unit is closed a piston 3 recedes into a cylinder 2 to accommodate the excess material. Slidable on the piston rod 4 is a disc 1 which covers a bleed hole 7 in the wall of the cylinder 2. As the piston 3 recedes it meets this disc 1 and, forcing it back against springs 6, causes the hole 7 to be uncovered and to allow the egress of surplus material. When the mould unit is in a position to receive material the piston 3 returns, under the pressure of air admitted through a connection 12, and the reserve of material in the cylinder 2 supplements the material in the feeding duct 8. An auxiliary cylinder 13 may be used, Fig. 2, also branching from the duct 8, its piston 14 being mechanically actuated from the moulding unit, e.g., by a cam 17 and linkage 16, synchronized so that the piston 14 retracts when the mould inlet is closed and advances to add reserve material when the inlet is open. The cylinder and piston 13, 14 are proportioned so that no additional pressure is imposed on the material as it is fed to the mould and for this purpose the cylinder 13 has interchangeable liners 18 of different bores.
Patent GB-732215-A (GB)
Title: Levelling beam for horizontal coke ovens
IPC: C10B37/02
Filed: 1953-10-26
Abstract: 732,215. Coke oven leveller bars. SIMON-CARVES, Ltd. (Otto & Co., Ges., Dr. C.). Oct. 26, 1953, No. 29501/53. Class 51 (2). Deformation of a leveller bar for a horizontal coke oven battery is alleviated by constructing the major part of the bar as a hollow sheet metal body, flat at the bottom and having rounded sides and a closed free end, with one or more vertical cross-pieces running through the bar in the longitudinal direction. In the preferred embodiment, the leveller bar 18 is supported on the coke pusher machine 16 between rollers 17 and 19, carried by supports 20 which may be adjusted vertically. The section of the bar which is introduced into the coke oven chamber has a rear part comprising rounded sides 21, 22, flat top and bottom plates 24 and 26 respectively, and vertical longitudinal crosspieces 23 and 25, the latter extending through the bar to form a lower central fin which may pass between vertical guide rollers. In the middle part of the bar, the cross-pieces 23 are omitted, and the top plate is ridge-shaped. The front end of the bar comprises side plates 27, 28 joined by angular cross-pieces 29, having the vertex of the angle pointing forwardly and a nose piece 31. The front end of the bar is bolted to connecting channels 34, which are fixed to the hollow part of the bar. The bar may be mounted on a separate machine running on the same track as the coke pusher machine.
Patent GB-206694-A (GB)
Title: Improvements in and connected with the commutating gear of electric machines
IPC: H02K13/10
Filed: 1922-10-31
Abstract: 206,694. English Electric Co., Ltd., and Schroeder, G. Oct. 31, 1922. Improving commutation, auxiliary means for.- Flashing over at the commutator is prevented by an arc-suppressing bar 10 arranged close to the surface of the commutator and encrosed by walls 2, 5 so that an arc proceeding from the brush 1 and beneath the wall 2 induces, by the action of the hot air and fumes produced, a rush of air over the other side of the bar from beneath the wall 5, thereby preventing the arc from passing over the bar. Transverse partitions 11 may extend between the walls 2, 5. The wall 5 is protected by a metal covering 6 from pellets of molten metal thrown up from the commutator.
Patent GB-175697-A (GB)
Title: Improvements in or relating to variable-speed gear for motor-cycles
IPC: B62M9/06
Filed: 1920-10-21
Abstract: 175,697. Peters, J. A. Oct. 21, 1920. Expanding-pulley gearing.-A pulley k, Fig. 1, with a slidable flange arranged upon a motorcycle drives a pulley a of fixed diameter, which is supported upon hinged links b, b<1>. The links b<1> are hinged at their upper ends to the cycle frame. The links b are connected to the frame by rocking levers d, which are operated to vary the speed by a worm g and handle h. A form of spring driving- pulley is shown in Fig. 2. The movable flange m, which may have a flywheel rim m<1>, is thrust towards the fixed flange l by a corrugated resilient diaphragm p. The contours of both flanges are curved.
Patent GB-379903-A (GB)
Title: Improvements in or relating to bottles and like vessels
IPC: B65D1/48
Filed: 1931-10-28
Abstract: 379,903. Bottles &c. STANILAND, E. F., Blacknest, Kineton Green Road, Olton, Warwickshire. Oct. 28, 1931, No. 29833. [Class 125 (i).] A bottle &c., particularly one to receive a crown cork, has its mouth formed by a metallic beaded rim 1, which has a depending sleeve 2 embedded or incorporated in the material of the bottle neck 3. The sleeve may be disposed externally or internally of the neck and may be formed with an inturned or outwardly turned flange which is embedded in the bottle &c. neck. In other modifications the lower edge of the skirt may be serrated or it may be apertured to provide bonding-holes into which the material of the vessel is forced during moulding.
Patent GB-742159-A (GB)
Title: Production of pentaerythritol
Filed: 1953-10-29
Abstract: Pentaerythritol is produced in a batch process by the reaction of acetaldehyde with formaldehyde and a suitable inorganic base in an aqueous medium, wherein control of the reaction is facilitated by employing the formaldehyde and acetaldehyde in a molecular ratio substantially exceeding 4 : 1, preferably at least 10 : 1, and bringing the reagents together rapidly with agitation so as to ensure complete admixture within a period of less than 2 minutes. Preferably the initial temperature of the reagents is between 15 DEG  and 40 DEG C., the reaction is stopped after between 45 and 250 minutes and the conditions are controlled so that the temperature reaches between 45 and 75 DEG  C.  The total initial concentration of aldehydes is preferably between 15 and 30 per cent by weight of the total mixture and from about 1.0 to 1.3 equivalents of inorganic base are used for each mol. of acetaldehyde.  Suitable inorganic bases are sodium, potassium and calcium hydroxides. Pentaerythritol may be recovered by reducing the pH to between 7.5 and 6.5 by addition of acetic, formic, hydrochloric or sulphuric acid, distilling off excess formaldehyde and crystallizing out the product after concentration.  Formaldehyde may be recovered by distillation at 10-30 p.s.i.g. or atmospheric pressure or by steam distillation, and recycled as feed.  Detailed examples are given in which formaldehyde and acetaldehyde in mol. ratios of at least 10 : 1 are mixed with an inorganic base over a half minute. Comparative runs are described showing the decrease in yield and purity of the product when the reactants are added over 45 minutes and when in addition the ratio is reduced to 5 : 1 and excess formaldehyde is removed by alkaline condensation.
Patent GB-906792-A (GB)
Title: Jet propulsion engine noise suppression nozzle with multiple settings
IPC: F02K1/42
Filed: 1960-08-30
Abstract: 906,792. Jet propulsion nozzles. BOEING AIRPLANE CO. Aug. 30, 1960 [Oct. 30, 1959], No. 29930/60. Class 110 (3). A jet propulsion noise suppression nozzle comprises a nozzle duct having a plurality of elongated trough-like elements extending longitudinally thereof at spaced locations about the duct periphery to produce a corrugated nozzle effect at the rearwardly discharging end of the duct, means to increase the noise reduction including a plurality of elongated auxiliary ducts normally housed in the troughs and pivotally mounted therein to swing outwardly into an extended position disposed generally transversely to the direction of discharge with their discharge apertures facing aft and means operable to decrease the nozzle opening by an amount approximately equal to the increase due to the auxiliary ducts and thereby maintain the effective nozzle opening approximately constant. The nozzle comprises a duct 10 formed between a tail pipe 12 and a central tail cone or plug 15. The tail pipe 12 has a rearward extension 12a having longitudinal troughs 14 located at regular intervals about its periphery. Auxiliary nozzle ducts 20 normally lie in the respective troughs 14. The ducts 20 may be moved from the position shown in Fig. 1, in which their outer walls 20b form an extension of the tapered cowl 16 to the position shown in Fig. 6 in which their inner walls 20a are approximately perpendicular to the engine axis A. Each of the walls 20a have rearwardly facing apertures and vanes 20c which are slanted outwardly so that exhaust gases from the duct 10 which are led into the ducts 20 by curved walls 20e are discharged in a rearward and outward direction. To compensate for the additional nozzle area of the apertures in the wall 20a, apertured doors 30 are hinged to the rear edges of the troughs. Preferably tabs 36 hinged with the door sections partially close the nozzle orifice area between the base circle of the troughs and the island member 34 when the doors are closed. Pneumatic or hydraulic actuators 40 operate the ducts 20 through links 44. Cranks 50 and links 52 are provided to co-ordinate the movement of the ducts 20 and doors 30. In a modification, Fig. 7 (not shown), the auxiliary ducts are pivoted to the downstream end of the nozzle. Openings in the duct through which the gases flow to the auxiliary ducts are normally closed by a flap valve. When the ducts are in operation, the flaps are moved into a position in which they reduce the nozzle area.
Patent GB-1139794-A (GB)
Title: An improvement in or relating to seat covers and the manufacture thereof
Inventor: CRAWSHAW BERNARD WILTON
IPC: A47C31/11
Filed: 1965-07-14
Abstract: 1,139,794. Loose covers for seats. DALE PRODUCTS (PLASTICS) Ltd. 23 May, 1966 [14 July, 1965], No. 29930/65. Heading A4M. A one-piece cover of heat sealable plastics material is formed from a substantially rectangular blank by folding edge portions of the seat top cover part to provide depending front 16 and side 22 cover skirts, these skirts being secured together by heat sealing along lines 20 which are inclined to the meeting edges of the front and side portions of the seat. The inclined lines 20 may be defined either by cutting one or both skirts 16, 22 or by inward folding of a gusset. The lines 20 may extend over either the front or the sides of the seat. A top pocket for the seat back is formed by folding over the top edge of the cover and heat sealing the edges 14.
Patent GB-603829-A (GB)
Title: Improvements in cooling reaction gases
IPC: B01D51/10
Filed: 1945-11-09
Abstract: <PICT:0603829/III/1> In the manufacture of chemical substances, particularly oxygenated hydrocarbons, e.g. as described in Specifications 462,906 and 463,389, [both in Group IV], by reactions in which the products are hot compressed gases, the latter are rapidly cooled by adding water and the gaseous mixture so obtained is employed to drive a turbine in which water vapour is condensed, but at least part of the reaction products remain in the vapour phase. Butane is partially oxidised in reaction chamber 3, using steam as diluent. The reaction products leave chamber 3 at 900 DEG  F. under a pressure of 100 lbs./sq. inch and are introduced into quench trap 4 where sufficient cold water is added to bring the temperature down to 400 DEG  F.  The gas mixture then passes through turbine 5 wherein the pressure falls to about 58 lbs. and the temperature to about 140 DEG  F.  The greater part of the water vapour in the mixture is thereby condensed and is collected in accumulator 6.  The uncondensed gases pass on to centrifugal compressor 7 in which they are compressed to 125 lbs. by the power of turbine 5.  They are re-cooled to 140 DEG  F. in cooler 8 and then passed to water absorber 9 in which the oxygenated organic compounds are removed from the gases. The gases leaving the absorber are divided; part being recycled to the reaction zone, and part being vented via an oil absorber (not shown) in which it is freed from hydrocarbons.  In a modification, the uncondensed gases from the accumulator are passed direct to the water absorber without compression; the residual gas is then passed to the centrifugal compressor before being recycled to the reaction zone.
Patent GB-1026328-A (GB)
Title: Direct preparation of wax like esters
Inventor: PANTULU AMIRAPU JOGI
IPC: C07C69/26
Filed: 1964-07-29
Abstract: Waxy esters are prepared by treating fatty acids with hydrogen at a temperature between 100 DEG  and 400 DEG  C., a pressure from 1000 to 5000 p.s.i. in the presence of a mixture of copper and cadmium salts or soaps as catalysts.  The fatty acids may be completely esterified to neutral esters and any unsaturation or hydroxy groups may be retained.  Examples describe the treatment of castor oil, and stearic acid.ALSO:Catalyst compositions, used in the hydrogenation of fatty acids to form waxy esters comprise mixtures of copper and cadmium salts or soaps.  The copper salt e.g. cupric carbonate or acetate, and cadmium salt e.g. carbonate, or the oxide are added to the fatty acid separately or premixed and the mixture is warmed to form the metal soaps and finally heated to 120 DEG C. under reduced pressure. Alternatively solutions of water soluble copper or cadmium salts are added to an aqueous solution of a sodium salt of the fatty acid and the soaps precipitated and isolated and then mixed.
Patent GB-750632-A (GB)
Title: Improvements in refractory metal electrodes for use in inert gas-shield welding and cutting apparatus
IPC: B23K35/22
Filed: 1953-11-02
Abstract: An inert gas-shielded arc welding torch has a non-consumable electrode composed of tungsten having dispered therein a total amount of 2 to 10 per cent of at least two of the compounds, barium oxide, calcium oxide, cerium oxide and yttrium oxide, preferably with 0,5 to 3 per cent of each constituent.  A little thorium oxide may be added. Yttrium earth concentrates are added to provide the yttrium oxide and powdered calcium acetate to provide the calcium oxide.  The electrode is made by forming under pressure a mixture of the powders of the constituents and sintered at 2000 DEG C. by passage of current therethrough.  The electrode is finally drawn or swaged. Specifications 745,023 and 750,631 are referred to.
Patent GB-1191881-A (GB)
Title: Optical Projection Apparatus
IPC: B41J2/465
Filed: 1967-06-30
Abstract: 1,191,881. Imaging apparatus. RANK XEROX Ltd. June 30, 1967 [July 5, 1966], No.30212/67. Headings G2A and G2H. An apparatus 12 for producing optical images of characters (e.g. numerals) particularly for use in microfilm indexing machines, comprises a plurality of endless loops movable in adjacent parallel paths past an exposure station having a flash lamp extending across its width, drive means for moving each loop independently, and circuit means for synchronising the drive means and flash lamp. The indexing machine may comprise a xerographic drum (20) which is sequentially uniformly charged image-wise exposed using apparatus 12, the latent image thus formed developed and transferred to a microfilm (10) and the drum cleaned for re-use. Apparatus 12 may comprise a plurality of loops 102 each bearing transparent numerals 1-9, the numerals of each loop being moved sequentially to an exposure station comprising a mask 128, a parabolic reflector 123 and a flash discharge tube 118, the parts of the loops adjacent the mask being held taut by air from manifolds 177 which also prevents overheating and reduces friction during movement of the loops. The loops are driven intermittently by motors 142a-e so that the number appearing in mask 128 increases one unit after each exposure. The movement of the loops and the operation of the flash lamp are synchronized with the movement of microfilm 10 by passing the latter over a cog (64) of an apertured timing disc (67) positioned between a lamp (82) and a photo-cell (80) so that rotation thereof by the microfilm produces discrete signals from the photo-cell which are transfered to flash and counter circuits via a Schmidt trigger (83) and a driver (84).
Patent GB-1263474-A (GB)
Title: Improvements in or relating to chucks and other workholding devices
Inventor: SYKES ALFRED ERNEST
IPC: B23Q1/00
Filed: 1968-06-25
Abstract: 1,263,474. Chucks and mandrels. MOLINS MACHINE CO. Ltd. 24 Sept., 1969 [25 June, 1968], No. 30246/68. Heading B3B. A workpiece 34 is held to a work-table by means of a chuck or device 10 comprising a base 11 which is attached to the work-table, a bush 15 which is slotted to produce resilient fingers 17, and a toggle mechanism 21, 22 operated by a screw 32. When the toggle mechanism is pushed to its nearly straight position a ball 24 is pushed into a conical recess 19 to separate gripping parts 18 of the fingers to expand and grip inside a hole 35 in the workpiece. Each of the parts 21, 22 includes a groove 31 to pivot about a pin 31. A further screw 33 acts as a stop and is adjusted to prevent the toggle parts 21, 22 passing the maximum extended position. Instead of balls 24, 26 the toggle parts 21, 22 may be suitably shaped and bear on flat surfaces which may include a small cylindrical locating hole. The base 11 is located in a work-table by a spigot 13 and clamped by screws. The spigot 13 may be threaded to screw into a locating hole. The device may be used in an alternative manner by first expanding the gripping parts 18 and inserting a spigot which is resiliently externally gripped when the toggle mechanism is released. Pads may be attached to the workpiece 34 that include spigots for gripping in this way.
Patent GB-1018771-A (GB)
Title: Polymer compositions
IPC: C08K5/13
Filed: 1962-08-08
Abstract: An oxymethylene polymer is blended with a triphenol.  The oxymethylene polymer may have from 0.2 to 30 mole per cent of units containing carbon to carbon single bonds in the chain-specified comonomers include dioxane, paraldehyde beta-propiolactone, cyclic adipic anhydride, ethylene oxide, dioxolane, styrene, vinyl acetate, methyl vinyl ketone and acrolein. The polymer may also be capped with ester or ether end groups.  The trisphenol may have the formula <FORM:1018771/C3/1> where R and R1 are the same or different and are hydrogen or C1- 5 alkyl groups and R4 is a C2- 5 alkylene group.  The trisphenol is preferably present in from 0.1 to 5%, and is preferably 2,6-bis (21-hydroxy-31-tetriary butyl-51-methylbenzyl) - 4 - methylphenol.  Chain scission inhibitors e.g. carboxylic polyamides, polyurethanes, substituted polyacrylamides, polyvinylpyrrolidone, hydrazines, compounds having 1 to 6 amide groups, proteins, compounds having tertiary amine and terminal amide groups, compounds having amidine groups, cycloadipatic amine compounds and aliphatic acylureas, cyanoguanidine being used in the examples, plasticizers, fillers, pigments and ultra-violet light degrader inhibitors may also be present.
Patent GB-1396503-A (GB)
Title: Disc brakes
IPC: F16D55/00
Filed: 1971-06-29
Abstract: 1396503 Disc brakes GIRLING Ltd 29 June 1972 [29 June 1971] 30310/71 Heading F2E In a disc brake the disc comprises a rotatable hub 5 to which are splined, at 6, axially movable members 4, outer brake pads 10 sliding on pins 9 engaging the members 4 by means of hydraulic pistons 3 and a further pad 11 is slidably located to engage the inner surfaces 8 of members 4, axial movement of the pad being limited by abutments 14. In a further embodiment axial movement of the pistons 3 is limited by split rings engaging the shoulders of the stepped cylinder bores.