baber/WOPTO huggingface dataset:
Patent GB-1422583-A (GB)
Title: Fuel injection systems for reversible two-stroke marine diesel  engines
IPC: F02D1/16
Filed: 1973-05-16
Abstract: 1422583 Fuel injection pumps; rotary positive-displacement machines SULZER BROS Ltd 16 May 1973 [31 May 1972] 23372/73 Headings F1A and F1F Each cylinder of a reversible two-stroke marine diesel engine is supplied with fuel by a pump plunger (not shown) operated by an individual cam 6 on a cam-shaft 5, the phase angle between the cam-shaft and the engine's crankshaft 1 being changed for forward and reverse operation and the quantity of fuel delivered to the cylinder during any given crankshaft angle before top-dead centre thereof being less for reverse rotation than for forward rotation. The phase angle is changed by moving radial vanes 12 fixed to the cam-shaft 5 between angularly spaced abutments 13, 14 within a gear 4, driven via a gear 3, by a gear 2 on the crankshaft 1. To effect the aforesaid delivery change the cams shown in Figs. 3 and 4 are used. In Fig. 4 the cam is asymmetrical, the lift h' between the start of injection A and the point T when the piston of the supplied cylinder reaches top-dead centre when operating in reverse being less than the corresponding lift h for forward operation. The cam of Fig. 3 is symmetrical about an axis X but adjustment of the phase angle is such that the angle α' between the start of injection and the point T for reverse operation is less than the corresponding angle α for forward operation.
Patent GB-982906-A (GB)
Title: Fractional crystallization control system
IPC: C12H6/00
Filed: 1963-06-12
Abstract: 982,906. Concentrating solutions by freezing. PHILLIPS PETROLEUM CO. June 12, 1963 [July 2, 1962]. No. 23384/63. Heading F4H. In a process of the type in which crystals and mother liquor are passed from a chilling zone 14 successively through a filtering zone 25, from which a mother liquor is withdrawn through line 31, a reflux zone 24 and a melt zone 27 the rate of heat introduction to the latter zone is varied in response to the temperature of the melt. The temperature of the melt in product line 34 is maintained constant by a thermocouple 53 which transmits a signal to a controller 52 and the latter operates a device 51 to vary the current supplied to an electric heater 33 in the melt zone. The line 34 also includes a valve 46 which is regulated to give a constant flow rate of the product by a controller 47 responsive to the pressure drop across an orifice 48 in line 34. In a modification (Fig. 2, not shown) the heater 33 is replaced by a coil through which water heated by steam in a heat-exchanger is circulated, the rate of flow of steam being regulated in response to the temperature in the melt zone. Alternatively a single heating fluid whose rate of flow is varied as above is employed. Examples of flow rates, temperatures and concentrations of specific liquids are given. Specification 807,100 is referred to.
Patent GB-418855-A (GB)
Title: Improved apparatus for harrowing grass and arable land
IPC: A01D78/00
Filed: 1933-08-23
Abstract: 418,855. Machines for working land. GIBBS, H. H., West Street, Crewkerne, Somerset. Aug. 23, 1933, No. 23430. [Class 6 (i).] Harrowing-apparatus comprises a frame, road wheels at the front of the frame, tine-carrying bars mounted at the rear of the frame in circular castings on a transverse axle connected by gearing to the road wheel axle and rotated in the same direction as, but much slower than, the road wheel axle, and an eccentric for keeping the tines in the vertical or hanging position, the arrangement being such that the tine-bars form a skeleton drum and the tines are prevented from rotating too fast and thus have a dragging or harrowing action on the ground. The axle 3 of the skeleton drum is driven from the wheel axle 5<c> by a chain 5<a>. The tine-bars are loosely mounted in the castings and provided with cranked ends 6 engaging in a ring 7 mounted on an eccentric circular block 8 on the axle 3. Fixed on the block 8 is a lever 9 which is adjustably connected to a spring-controlled rod 10. The inclination of the tines 1<a> is varied by adjusting the connection between the lever 9 and the rod 10, and thus partially rotating the block 8. The tines pass between the prongs of a stripper bar 12. The depth of work may be regulated by skids or by an adjustable wheel 19. In a modification the tines are carried by brackets independently and loosely mounted on the tinebars and controlled by springs engaging blocks mounted in castings secured on the bars.
Patent GB-1056726-A (GB)
Title: Improvements in or relating to electromagnetic wave propagating arrangements
IPC: H01P9/00
Filed: 1965-06-02
Abstract: 1,056,726. Phase-shifters. WESTERN ELECTRIC CO. Inc. June 2, 1965 [June 3, 1964]. No. 23461/65. Heading H1W. The velocity of propagation along a transmission line is varied by changing the permeaability (Á) and permittivity (#) respectively of ferromagnetic and ferroelectric material included in the field-space of the line. As shown (a cross-section), the two-conductor strip line 12 is provided with a central strip 11 of ferromagnetic thin film and two layers 14 of ferroelectric material, e.g. a mixture of 73% barium titanate and 27% strontium titanate, having a Curie point below the ambient temperature. A helical winding (not shown), around the line provides an axial magnetic field in the thin film of a magnitude chosen to lie in a negative linear range of the Á/H curve. Similarly, a potential applied between the conductors biases the ferroelectric material to a point in a negative linear range of the #/E curve. The current and voltage are supplied by variable D.C. transistor feed-back amplifiers controlled from a single source in such a manner that as Á# varies, Á/# remains constant. Thus, the delay may be varied whilst preserving constant impedance.
Patent GB-1151023-A (GB)
Title: Polyolefin Compositions containing a Basic Polyamine Dye Site Additive
IPC: C08L23/02
Filed: 1967-05-19
Abstract: 1,151,023. Polyolefin compositions. HERCULES Inc. 19 May, 1967 [25 May, 1966], No. 23500/67. Heading C3P. Polyolefin compositions comprise 80 to 99À5 weight per cent of a stereo-regular polyolefin and 0À5 to 20 weight per cent of a basic polyamide comprising the reaction product of a dicarboxylic acid or derivative thereof and a polyamine containing two primary and/or secondary amino groups and one or more tertiary amino groups, said polyamide being present in amount sufficient to provide 0À1 to 1À0 weight per cent of basic nitrogen in the composition. Up to 60 weight per cent of the polyamine may be replaced by a diamine. The polyolefin may be linear polyethylene, isotactic polypropylene and stereo-regular poly(4-methyl-pentene-1). The compositions may be formed by mixing the polymers, optionally with solvents and/or dispersing agents such as long chain fatty alcohols. The compositions may be made into fibres, films, mouldings and extrusions having enhanced dye affinity. Many suitable acids and amines are listed including oxalic, alkylene and azoalkylene dicarboxylic, phthalic, bis alkylene phenylene, and N-substituted piperidine, quinoline and isoquinoline dicarboxylic acids; and polyalkylene, polycycloalkylene and polyarylene polyamines, amino substituted heterocyclic nitrogen compounds and optionally alkylene or arylene diamines. In examples isotactic polypropylene is mixed with polyamides derived from (1) azelaic acid, bis (3-aminopropyl) methylamine and hexamethylenediamine; and (2) sebacic acid, bis (3-aminopropyl)methylamine and hexamethylenediamine; sebacic acid N-aminoethyl piperazine and hexamethylene-diamine; and azelaic acid, N-aminoethyl piperazine and hexamethylenediamine.
Patent GB-652552-A (GB)
Title: Improvements in or relating to woven fabrics
IPC: D03D35/00
Filed: 1948-09-07
Abstract: 652,552. Forming selvedges. LIBBY, C. F. Sept. 7, 1948., No. 23523. Convention date, April 21. [Classes 142(ii) and 142(iv)] Loops of two wefts 16, 18 inserted from opposite edges of the fabric, and a loop of elastic thread 20 or 22, are knitted together to form a selvedge the elastic thread being stretched so that it grips the loops of weft. One of the elastic threads may be omitted. In a fabric having only one weft, the knitted selvedge comprises one loop of weft and a loop of elastic thread. The elastic thread may be of rubber covered with cotton or rayon.
Patent GB-268719-A (GB)
Title: Improvements in and relating to ointments and the manufacture thereof
IPC: A61K9/00
Filed: 1926-09-23
Abstract: 268,719. Merz, F., (trading as Merz & Co.). March 30, 1926, [Convention date]. Ointments. - Water ointments, particularly ointments made up on a basis of tragacanth, glycerine and water are given an unctuous character, similar to that of vaseline ointments, by the addition of a culture of a fermentation fungus such as yeast. According to an example a mixture of rye or wheat flour, maize starch, water, milk, and yeast is allowed to ferment at a moderate temperature and finally to dry at the same temperature. A small proportion of this dry culture is added to tragacanth and the mixture stirred into a solution of glycerine in water. The whole is then gradually heated to boiling point, so as to provide favourable conditions for propagation and ultimate sterilization, and cooled. The basis is suitable for making mercury ointment.
Patent GB-396561-A (GB)
Title: Improvements in wearing apparel
IPC: A41D1/06
Filed: 1932-08-25
Abstract: 396,561. Trousers and similar garments. MIDDLETON, H. S., 21, Wembley Park Drive, Wembley Park, Middlesex. Aug. 25, 1932, No. 23797. [Class 141.] A single length or strip of ordinary elastic a is inserted in a cut-away portion or gap in the waist of trousers and similar outer nether garments, with its top edge c level with the top of the garment and extending from one side seam e to the other f around the back. Button-holed tabs g are provided for securing under-pants in position. Specifications 354,119 and 371,911 are referred to.
Patent GB-1124374-A (GB)
Title: Purification of amino acids
Inventor: SMITH WILLIAM
Filed: 1966-05-27
Abstract: Amino acids made by aqueous acid hydrolysis of the corresponding amino nitrile are purified by subjecting the acid hydrolysate to solvent extraction with an aromatic hydrocarbon solvent or a chlorinated hydrocarbon solvent.  Preferred solvents are aliphatic chlorinated hydrocarbons, particularly chloroform, and aromatic hydrocarbons of the benzene series.  The acid hydrolysate should preferably be as completely dissolved in water as possible and the pH of the aqueous phase is preferably in the range 4 to 8.  The amino acid is recovered from the aqueous phase by conventional means and, if desired, unchanged amino nitrile is recovered from the organic phase, e.g. by extraction with a dilute aqueous acid, or by evaporation of the organic solution. The purification of methionine is described.
Patent GB-972307-A (GB)
Title: Driver's brake valve device for fluid pressure operated braking systems
IPC: B60T15/04
Filed: 1961-07-03
Abstract: 972,307. Fluid-pressure brakes; brake indicators. WESTINGHOUSE BREMSENG.m.b.H. July 3, 1961 [July 5, 1960], No. 23880/61. Headings F2E and F2F. A driver's brake valve device is basically the same as that described in Specification 914,840 but, in addition, is provided with a charging- flow valve device for limiting main reservoir charging impulses and overcharging of the brake system in dependence upon the degree of the previous brake application, the length of the train and the type of railway stock (e.g. freight or passenger) to which the brakes are fitted. The latter two variables corresponding to an axle total are set by a manually variable choke 51 which controls the flow of compressed air from the brake pipe 65 to a limiting reservoir 75, the pressure in which controls two valves 28, 43 limiting the charging flow. The valve 43 is adapted to close a vent connection to the control chambers 32, 34, respectively, of a pilot valve 1 and relay valve 2 and the other valve 28 is adapted to close a connection to an overcharge limiting member 26 coupled to the pilot valve 1. These connections are also controlled by valves 10, 11 operated by the handle 9 of the driver's brake valve device. The choke device 61 allows the flow of compressed air to be reduced or increased by means of a needle valve 76 or to be cut off completely by a valve member 77. An indicator 78 mounted on a control rod of the choke device 51 is adapted to operate in conjunction with a scale 79 calibrated to indicate the length and type of a train by the number of its axles, to give the magnitude of the compressed air flow in a pipe 80 leading to the main brake pipe 65. The charging flowlimiting reservoir 75 is filled as a function of a pre-set axle total and the force of the preceding application of the brakes. When the pressure in the reservoir. 75 reaches a certain value, it overcomes the force of a limiter spring 50 and moves a diaphragm 48 downwards, causing the valves 28, 43 to close. The supply of air through a choke 24 and pipe 30 to a timing reservoir 25 is thus interrupted and the supply of main reservoir air is cut off in the manner described in Specification 914,840.
Patent GB-238914-A (GB)
Abstract: 238,914. Nydqvist, A. March 24, 1924. Blast apparatus. - One or more cooled water separators are fitted in the exhaust pipe of a steam locomotive or the like between the engine and the blast pipe or in immediate connection therewith. The separator 9 fitted at the base of the blast pipe 10 is cooled by a jacket 11, through which feed water may be circulated. In place of a jacket, the separator mary be formed with ribs or the like. The blast pipe may be branched and connected to two separators. The separated water and condensed steam may be collected and used as a boiler feed.
Patent GB-640999-A (GB)
Title: Improvements in or relating to methods of and means for growing crystals
IPC: C30B7/00
Filed: 1944-06-15
Abstract: Crystals are grown from a crystalline seed body which is supported above the bottom of a crystallization tank, by flowing a supersaturated solution of the material to be crystallized around the seed body in a direction substantially parallel to a crystallographic axis thereof.  Crystalline seed bodies 21, 22, 23, 24, 25 are cut from a crystal of primary ammonium phosphate as shown in Fig. 1.  The seed bodies are cemented to pedastals 27 (Fig. 6) and fitted into slots in a sheet 33 of synthetic resin or hard rubber, disposed on the bottom of tank 31.  The tank is filled with a heated saturated solution of ammonium phosphate, and is then <PICT:0640999/III/1> <PICT:0640999/III/2> <PICT:0640999/III/3> rocked slowly (by means not shown) from side to side so as to cause the solution to flow gently back and forth in the direction of the Z-axes of the seed bodies, as indicated by the double arrow; the temperature of the solution is gradually lowered simultaneously.  In practice, it is preferable to load the tank with seed bodies of a single type; and in the case of seed body 22, it is preferable to adopt the method of mounting shown in Fig. 8.  The isomorphs of ammonium phosphate are referred to.
Patent GB-1391877-A (GB)
Title: Interpolymers useful as bonding agents for nonwoven fibrous products
IPC: D04H1/64
Filed: 1973-05-21
Abstract: 1391877 Non-woven fabric MONSANTO CO 21 May 1973 [22 May 1972 (2)] 24055/73 Headings D1R and D2B [Also in Division C3] Binding agents for non-woven fibrous materials consist of an interpolymer made from ethylene (preferably at least 5%), vinyl chloride (at least 30%), N-methylolacrylamide (0.1-10%) and N-(C 1 -C 10 ) alkyloxymethyl (meth) acrylamide (0.1-10%). They are prepared by emulsion polymerisation and the latices used as binding agents for non-woven fibrous materials. Cross-linking occurs on heating. In an example a non-woven cellulose/nylon fibre fabric is immersed in a latex, dried and calendered. The non-woven fibrous material may be formed from natural and/or synthetic fibres.
Patent GB-1460151-A (GB)
Title: Nitrophthalides their mahufacture and their use in recording systems-
IPC: B41M5/145
Filed: 1973-05-21
Abstract: 1460151 3 - (2<SP>1</SP> - Carboxy - nitrobenzoyl)indoles CIBA-GEIGY AG 26 March 1974 [21 May 1973] 24080/73 Heading C2C [Also in Divisions C4 and D2] 3 - (2<SP>1 </SP>- Carboxy - nitrobenzoyl) - indole compounds of the general formula wherein Y 5  is H or C 2 -C 8  alkyl and Z 5  is H, methyl or phenyl are prepared by reacting 3- or 4-nitrophthalic anhydride with an appropriately substituted indole.
Patent GB-835736-A (GB)
Title: Improvements in or relating to flat-bed sliding-needle knitting machines
IPC: D04B15/36
Filed: 1956-05-01
Abstract: 835,736. Hand knitting machines. STEINHOF, K., [trading as STEINHOF APPARATEFABRIK, K.]. May 1, 1956 [May 11, 1955], No. 24125/59. Divided out of 835,735. Class 74 (2). In a hand-operated, flat-bed sliding-needle machine having a main and an auxiliary needle bed, the cam carriage for the auxiliary bed bears a central stitch cam 331, stationary needle raising cams 355, auxiliary needle lowering cams 357 and clearing cams 359 pivotable by springs into operative position ; and, on a movement of the stitch cam along a line perpendicular to the direction of the cam carriage traverse, there may be superimposed a further movement along the same line, by reason of engagement of a pin 354 on the cam carriage in a spiral slot 351 formed in a plate 350 manually rotatable about an axis fixed in relation to the stitch cam. The stitch cam 331 is fixed to a slide 334 and is movable along a line perpendicular to the traverse, by reason of a pin 335 borne by the slide and projecting through a transverse slot 340 of the cam carriage plate in a spiral recess 341 provided with pin-locating recesses and formed in a manually rotatable disc 342. An additional movement along the same line may be imported by rotation of a knob 348 at one end of a shaft 347, the other end of which bears the plate 350. For tuckwork, one cam 359 may be rendered inoperative by operation of a lever 360, one end of which underlies the cam. Reference has been directed by the Comptroller to Specification 714,426.
Patent GB-1197048-A (GB)
Title: A process of Assembling a Semiconductor Device
Inventor: VOGEL XAVER
IPC: H01L23/40
Filed: 1969-05-12
Abstract: 1,197,048. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. 12 May, 1969 [16 May, 1968], No. 24132/69. Heading H1K. A semi-conductor device 4 is gripped firmly between two finned heat sink electrodes 1, 2 by three equispaced bolts 3 each insulated from the heat sinks by rings 11, 14 and a sleeve 16 and each provided with spring washers 9. During assembly, the structure is loosely bolted together and placed on the lower bed of an hydraulic press provided with three hexagonal studs each one of which fits into a corresponding recess in one of the bolt heads 6 to secure its bolt against rotation. The top plate of the press is universally jointed and is used to apply an even pressure to heat sink 1. The nuts 12 are then simultaneously tightened through bores in the top plate to bring two thrust washers 7, 10 on each bolt on to a spacer sleeve 8 around the spring washers. Each nut 12 is then loosened off by a predetermined amount (e.g. ¢ turn) so that the thrust is taken by the spring washers 9. (The length of individual spacer sleeves 8 is chosen to allow for production variations in the characteristics of the washer stacks). The completed unit is then removed from the press. In a variant, where even pressure on the device 4 is not so important, the spacer sleeves are omitted and the nuts 12 are simultaneously tightened to a predetermined torque while the assembly. is held in the press.
Patent GB-586820-A (GB)
Title: An improved nozzle for use in water filters
Filed: 1944-12-04
Abstract: 586,820. Filter beds. MOORE, R. P. Dec. 4, 1944, No. 24221. [Class 46] [Also in Group XXII] A nozzle for use in filter beds is provided by a tube 12 of non-corrosive material which has longitudinal slot 13 so that it can readily be inserted in a hole 14 in the floor of the filter bed, the top of the tube being formed with additional slots 17 and the parts 16 between the slots 17 being turned outwards and downwards to form the head of the nozzle.
Patent GB-785702-A (GB)
Title: Improvements in or relating to new compositions of matter suitable for transmitting power in and lubricating the parts of a hydraulic system
Filed: 1955-01-26
Abstract: 785,702. Hydraulic fluids. DOUGLAS AIRCRAFT CO., Inc. Jan. 26, 1954 [Feb. 2, 1953], No. 24223/55. Divided out of 785,701. Class 69 (2). Hydraulic fluids comprise (1) a dialkyl aryl phosphate in which the alkyl radicals have from 4 to 8 carbon atoms and the aryl radical 6 or 7 carbon atoms; (2) a minor but sufficient proportion of a mixture of an epoxy compound and an alkylene bis-aryl sulphide in which the alkylene group has 1 or 2 carbon atoms and the aryl groups have 6 or 7 carbon atoms to deactivate the composition on copper, and optionally (3) a minor but sufficient proportion of a polyalkyl methacrylate having a molecular weight within the range of 1,500 to 14,000 and in which the alkyl group has from 2 to 8 carbon atoms to increase the viscosity and viscosity index of the composition. Dialkyl aryl phosphates specified are dibutyl phenyl, diamyl phenyl, dihexyl phenyl, dioctyl phenyl, di-(2- ethylhexyl)phenyl, butyl - (2 - ethyl hexyl) phenyl, di-iso-octyl phenyl, butyl iso-octyl phenyl and dibutyl cresyl phosphates. Epoxy compounds specified are glycidyl ethers such as glycidyl phenyl, glycidyl o-cresyl, glycidyl cyclohexyl, glycidyl methyl, glycidyl ethyl and glycidyl iso-propyl ethers, ethylene oxide, propylene oxide, isobutylene oxide, butadiene oxide, isoprene oxide, decene oxide, epichlorhydrin, glycide, chloroprene oxide, cyclohexylene oxide and cyclopentene oxide. Alkylene aryl sulphides specified are inethylene and ethylene bis-phenyl sulphides and p-tolyl sulphides. The polyalkyl methacrylates are preferably those in which the alkyl groups contain from 4 to 8 carbon atoms, and are usually employed in amounts of from 0.2 to 10 per cent of the compositions. Specification 706,566 also is referred to.
Patent GB-992996-A (GB)
Title: Sieve drum drying apparatus having at least two sieve drums
IPC: F26B13/16
Filed: 1963-06-19
Abstract: 992,996. Sieve drum driers. H. FLEISSNER, H. FLEISSNER, and G. FLEISSNER, [trading as ESTABLISHMENT FOR AUTOMATION]. June 19, 1963 [June 19, 1962], No. 24351/63. Heading F4G. A sieve drum drier comprises drums 3, 4 having coaxially arranged radial fans 7, 8 respectively, the direction of rotation of which is in the opposite direction to that of the material 1 to be dried. The end wall 11 of the drier casing is adjustably arranged so that its spacing from the inlet drum 3 is adjustable and also the wall may be pivotable from the vertical.
Patent GB-370802-A (GB)
Title: Improvements in fuel pumps of internal combustion engines
IPC: F02M59/36
Filed: 1931-08-31
Abstract: 370,802. Fuel - injection pumps. SCHWEIZERISCHE LO.KOMOTIV- & MASCHINENFABRIK, Winterthur, Switzerland. Aug. 31, 1931, No. 24412. Convention date, Nov. 12, 1930. [Class 102 (i).] In a fuel-injection pump of the type in which a relief valve 13, of approxi. mately the same diameter as the plunger 2, is opened through a push-rod 17 by a lever 19 engaging the plunger crosshead 5 and pivoted on a crank 20 or an adjustable spindle 21, the valve-stem 22, which is of large diameter, is movable in a cylinder 14, formed with projections 14a engaging the valve seat, and loosely fitting in a chamber leading to the discharge conduit 12. Pressure above the valvestem is relieved by a passage 27 communicating with the relief passage 28. The push-rod 17 is pressed downwards by a spring 33, and may be integral with the valve or separate. The Specification as open to inspection under Sect. 91 (3) (a) describes a modification in which the valve-stem 22 moves in a fixed bush and is pressed downwards by a spring, the push-rod 17 being separate from the valve. This subject-matter does not appear in the Specification as accepted.