baber/WOPTO huggingface dataset:
Patent GB-1458849-A (GB)
Title: Process for the production of polyisocyanates
IPC: C07C271/06
Filed: 1974-11-13
Abstract: 1458849 Polyisocyanates BAYER AG 13 Nov 1974 [14 Nov 1973] 49095/74 Heading C2C The invention comprises a process for the simultaneous production of diisocyanates and higher functional polyisocyanates of the diphenylmethane series by reacting arylamine which is at least partly protonized with formaldehyde in the aqueous phase, separating the aniline/formaldehyde condensate from the resulting reaction product, phosgenating the separated aniline/formaldehyde condensate and working up the resulting polyisocyanate mixture by distillation, in which: (1) the at least partly protonized arylamine used as a mixture of (a) aniline and (b) a polyamine of the diphenylmethane series which has been obtained by aniline/formaldehyde condensation, the proportions of (a) to (b) corresponding to a ratio of aniline amino groups to polyamine amino groups of from 98 : 2 to 20 : 80, at least 90% of the amino groups in the mixture being protonized; (2) the aniline/formaldehyde molar ratio at the beginning of the reaction is from 1 : 1 to 12 : 1; (3) the condensation reaction is carried out in at least two stages, the reaction temperature in the first stage being 20‹ to 60‹ C. and the reaction temperature in the last stage of condensation above 60‹ C.; (4) separation of the polyamine which is to be phosgenated is carried out by (a) extraction in at least two stages of the resulting reaction mixture with a hydrophobic solvent in the presence of additional aniline added to the condensation product in the aqueous phase during and/or before the condensation reaction and (b) removal of water, hydrophobic solvent and aniline from the resulting organic phase by distillation, optionally after first removing minor quantities of acid present in the form of ammonium salts by washing with water and/or neutralizing them with an aqueous inorganic base, (aa) extraction being carried out at temperatures above 60‹ C. in all stages of extraction, (ab) the mixture conveyed to the first extraction stage for extraction containing 10 to 60% by weight of free arylamine, (ac) the hydrophobic solvent supplied to the first extraction stage containing 10 to 80% by weight of free aniline and (ad) the hydrophobic solvent supplied to the last extraction stage containing a maximum of 10% by weight of free aniline; and (5) the aqueous phase obtained from the extraction process is returned to the beginning of the process.
Patent GB-1279288-A (GB)
Title: Device for measuring the quantity of liquid passing within a conduit
Inventor: MAESHIBA SOZABURO
IPC: F17D3/00
Filed: 1969-10-07
Abstract: 1279288 Rotary fluid meters S MAESHIBA 7 Oct 1969 [5 March 1969] 49127/69 Heading F1F In a liquid meter with a vane 2 coupled to a register 6 by a shaft 5 turbulence is reduced and distribution of the liquid rendered uniform by rectifying strainers 3, 4 made of wire or perforated plate.
Patent GB-1032130-A (GB)
Title: Basic refractory block and method of making the same
IPC: F23M5/06
Filed: 1962-12-31
Abstract: 1,032,130. Refractory bricks. MINERALIMPEX MAGYAR OLAJ-•S B‡NYATERM•K KœLKERESKEDELMI V‡LLALAT. Dec. 31, 1962 [Dec. 30, 1961], No. 49149/62. Heading F4B. A basic refractory metal-clad brick 20 has two U-shaped liners 20c, 20d of deformable material with edges facing each other on opposite wider brick faces, covered by two U- shaped metal liners 21a, 21b with edges facing each other on the narrower brick faces. The assembly is clamped between forces acting in the direction of arrows 25, 26 and compressed in the direction of arrows 27, 28 to produce a permanent deformation of 21a and 21b at the expense of the deformable material. An alternative, Fig. 2 (not shown), has the metal cladding pressed into gaps left between the edges of the two U-shaped liners of deformable material. A further embodiment, Fig. 3 (not shown), utilizes deformable elements with adhesive layers on either side thereof and U-shaped outer metal casings. A variation of this construction, Fig. 4 (not shown), has L-shaped outer casings. The brick may also have a combustible organic deformable layer, e.g. paper, at the hot end, and an inorganic layer, e.g. asbestos, at the cold end, Fig. 5 (not shown). A modification, Figs. 6-8 (not shown), incorporates two brick materials, e.g. magnesite and chrome magnesite, separated by a metal plate with elongated corrugations and formed with an extension in the form of a suspension eye. This brick has deformable elements and also grooves formed in the brick material. A final embodiment, Figs. 9-11 (not shown), particularly suitable for dolomite bricks, has tongues cut in the metal casings so that they can be bent over to close the ends of the bricks. The deformable may be synthetic resins or paper treated with tar or paraffin wax, or adhesive bitumen. Besides paper, the deformable organic materials include wood chippings and plates, vegetable waste, vegetable or synthetic fibres, plastic or resinous materials and leather and rubber derivatives. Inorganic materials include asbestos, fibre glass, slag wool, perlite, mica and vermiculite.
Patent GB-1404230-A (GB)
Title: Method and apparatus for feeding objects to a point of use
IPC: B65G11/16
Filed: 1972-10-27
Abstract: 1404230 Shoots GUNSONS SORTEX Ltd 18 Oct 1973 [27 Oct 1972] 49687/72 Heading B8S Objects such as peas or beans are fed from a vibrated tray 13 into an inclined U-section shoot 15, the surface of the shoot along which the objects roll being that of polished anodized aluminium whose low coefficient of friction prevents the objects from gripping the surface, the objects thus sliding down the surface of the shoot 15 without substantial rolling towards the lower end of the shoot 15. The anodized feed surface is in the form of a lining having a thickness of at least 0À001 inch but not more than 0À003 inch. At the lower end of the shoot 15 the objects pass into an optical box 21 which contains photo-electric viewing means (not shown) which can detect an unsatisfactory pea or bean and which can then operate a pneumatic ejector 22 to blow the unsatisfactory pea or bean towards an outlet 27, while satisfactory peas or beans pass to an inlet aperture 25 of an outlet tube 26.
Patent GB-1212536-A (GB)
Title: Improvements in or relating to bright zinc electroplating
IPC: C25D3/22
Filed: 1967-11-01
Abstract: 1,212,536. Electro-deposition of bright zinc. M & T CHEMICALS Inc. Nov.1, 1967 [Nov. 2, 1966], No.49714/67. Heading C7B. Bright zinc is electro-deposited from an aqueous alkaline pyrophosphate solution containing zinc ions and at least one organic carrier compound selected from (a) bis [sulphonaphthyl] methane and salts thereof, (b) other naphthalene derivatives containing as substituents radicals selected from hydroxyl and sulphonic acids and their alkali metal salts, which sulphonic acids are optionally further substituted by hydroxyl, amino or imino radicals, (c) benzene derivatives containing as substituents radicals selected from sulphonamides, sulphonic acids and their alkali metal or ammonium salts, (d) ally sulphonic acid and its alkali metal or ammonium salts; at least one carbonyl compound selected from aldehydes R CHO and ketones R<1> -CO-R<11> where R is hydrogen or an alkyl, aryl or a heterocyclic oxygen or sulphur radical and R<1> and R<11> are alkyl or aryl radicals; and at least one mono-or dicarboxylic acid R<111> (COOH)n where R<111> is a hydrocarbyl or inertly substituted hydrocarbyl group, or an anhydride of such an acid. Numerous examples are given in the spec<n>. The bis [sulphonaphthyl] methane compounds may contain up to three sulphonic acid groups on either of the naphthyl fused rings and the organic carboxylic acids may be substituted by halogen alkoxy or phenoxy groups and may include halogenated sulphobenzoic acids. Plating may be effected on to ferrous metals, copper, brass or bronze or copper coated die cast metals or non-conductive articles e.g. of plastics which have been chemically plated with silver, copper or nickel. The pyrophosphate zinc stock bath to which the organic compounds are added as brightener is typically as described in Specification 1, 083, 504 and the modified baths are employed under similar conditions to those of the prior spec<n>. Reference has been directed by the Comptroller to Specification 1, 083, 504.
Patent GB-1056807-A (GB)
Title: Double chain-stitch zig-zag sewing machine
IPC: D05B1/10
Filed: 1965-11-25
Abstract: 1,056,807. Sewing machines. DURKOPPWERKE A. G. Nov. 25, 1965 [Nov. 26, 1964], No. 50068/65. Heading D1G. A double chain-stitch zig-zag sewing machine comprises a looper beak movable in an alliptical path and having an edge adapted to receive and hold the needle thread loop during the loop-taking stroke, and a stationery finger entering into the path of the looptaker beak during the return stroke and adapted both to release the needle thread loop from said edge after the descending needle enters the triangle formed by the looper thread and the needle thread loop, and also to control the subsequent removal of said loop from the beak. A looper beak 6' carried on a pivoted arm 10, is formed on its forward face with a pair of protuberances 15 over which the needle thread loop 13 passes near the end of the loop-taking stroke. During the return, needle-avoiding stroke, loop 13 is held by the rear edges 15' of the protuberances 15, and the tip 17' of a fired finger 17 enters a longitudinal groove 16 formed in the forward face of beak 6'. The arrangement is such that when the descending needle 4 enters the triangle formed by loop 13 and the looper thread 14, a notch 21 in tip 17' engages loop 13 to release the latter from the edges 15', and the subsequent sliding of loop 13 over the tip of beak 6' is controlled by the leading edge 19 of tip 17'.
Patent GB-1366570-A (GB)
Title: Sprinkler nozzle
IPC: B05B15/658
Filed: 1972-11-01
Abstract: 1366570 Sprinkler nozzles KOYO FASTENER CO Ltd 1 Nov 1972 50329/72 Heading B2F  An irrigation sprinkler nozzle comprises a cylindrical rivet which is secured to a water supply pipe by a pin which is inserted into a recess in the rivet to distort the lower end thereof to hold the rivet in place. As shown, the rivet R has diametrically opposed slots 5 which communicate with a recess 3, insertion of the stem 7 of the pin P causing portions 6 of the rivet to distort as shown in Fig. 5. Water is directed along the stem 7 and a surface 8a to be sprayed in all radial directions. The pin shown may have axial straight or curved grooves or projections and the recess 3 may have axial straight grooves or projections. In a modified construction (Figs. 23-32 not shown) the pin has no enlarged head but the rivet is so provided, grooves or projections being provided on the outer surface of the rivet. Any of the pins may have at its lower end a bulbous portion and additionally an annular groove, to grip the portions 6 to provide a greater securing force. The spray pattern can be confiined to certain directions, e.g. to produce a fan shaped spray by restricting the number of grooves along the stem of the pin.
Patent GB-1458201-A (GB)
Title: Resilient retainer
IPC: F16B2/06
Filed: 1973-10-31
Abstract: 1458201 A resilient retainer UNITED CARR LTD 29 Oct 1974 [31 Oct 1973] 50589/73 Heading E2B A resilient retainer 10, Figs. 1 and 2, comprises an elongate arm 19, a tag 20 for attaching the retainer to a support 11, Figs. 3 and 4, so that the retainer is pivotable about the attachment position, and a lug 21 which is bent approximately at right angles to the longitudinal axis of the arm 19 and having a neck 22 of reduced width which forms shoulders 23, 24 for example, the latter being bent out of alignment with the longitudinal axis of the neck 22. The retainer 10 is provided with a 'U'-shaped loop 19a, the tag 20 is received in a slot 17 in a flange 15 of the support 11 and the lug 21 is then forced into a slot 18 in a flange 16 of the support, the lug being twisted by engagement with the sides of the slot 18 until the shoulders 23, 24 pass through the slot 18. The lug un-twists and the shoulders are located behind the flange 16. The assembly of the retainer 10 and the support 11 may be used to prevent pipes 32, Fig. 5, accidentally dislodging from a block 26 of synthetic rubber, for example. The latter is held to a panel 30 by a screw 27 which passes through a metal sleeve 28 extending through the block 26, through a hole 28a, Fig. 4, in base 12 of the support 11 and into a screw-threaded hole 29, Fig. 5, in the panel 30. The 'U'-shaped loop 19a facilitates the assembly of the retainer and the support and also serves to provide clearance for the head of the screw 27.
Patent GB-1287295-A (GB)
Title: Improvements in and relating to canisters for storing tape reels
Inventor: OSOJNAK BORIS M
IPC: G03B21/32
Filed: 1969-10-16
Abstract: 1287295 Releasable fastenings B M OSOJNAK 16 Oct 1969 [16 Oct 1968 28 July 1969] 50916/69 Heading E2B [Also in Division B8] A moulded polystyrene case for a spool of computer tape comprises a single member having a base 22, central hub 28, rim 26 and a split ring 32 that can be tightened around the periphery of the spool to retain the spool in the case. The ring 32 is located in the rim 26, which is of channel cross-section, and has one end anchored to the case at 44, the other end being provided with a handle 48 by which the ring can be expanded against the action of a coil spring 74. When handle 48 is released the spring clamps the ring around the spool. A hook 88 enables the case to be hung on a storage rack and a handle 60 enables the case to be easily transported. The handle 60 accommodates a label holder 72. Holes 90 in the base 22 facilitate removal of the spool when the ring 32 is released.
Patent GB-1162138-A (GB)
Title: Mechanisms for Controlling Speed Responsive Governors
Inventor: BLOOM JOSEPH LEWIS
IPC: G05D13/00
Filed: 1965-12-01
Abstract: 1,162,138. Centrifugal governors. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 29, 1966 [Dec. 1, 1965], No. 50929/65. Heading G3B. A mechanism for controlling the loading of a centrifugal governor comprises a member 14 movable linearly by an operator, a lever 15 pivotally mounted on the member, means 23 for transmitting movement of the lever to the governor, first and second springs 24, 29 acting upon the lever through respective parts, the part 32 through which the second spring acts carrying a pivotally mounted first abutment 35 for a third spring 37 acting at its other end upon a second oppositely-disposed abutment 35, and means 39, 41, 42 for angularly moving the second abutment about the pivotal connection of the first abutment in response to changes in a selected parameter, such as the exhaust temperature of an aircraft jet engine. The means 23 are carried by a lever 11, pivoted at 12 and arranged to actuate the governor sleeve as described in Specification 1,128,221. The part 32 consists of a bell-crank lever pivoted at 33 and acting on the lever 15 through a roller 34. The spring 24 acts on the lever 15 through a lever 25 and a roller 25a and controls the idling speed of the engine while the spring 29 has its effect modified by the spring 37 and controls the engine at higher speeds. A device responsive to temperature, an amplifier and a motor rotate the means 39, 41, 42 which contain a gear and quadrant.
Patent GB-1100695-A (GB)
Title: Improvements in and relating to floor sweepers
Inventor: YOSHIKUNI HIROSHI
IPC: A47L11/22
Filed: 1966-11-14
Abstract: 1,100,695. Ratchet clutches; reverse gear. OKAMURA MANUFACTURING CO. Ltd. 14 Nov., 1966, No. 50989/66. Headings F2C and F2D. [Also in Division A4] A wheeled sweeper comprising a dust collector 2 is provided with a cylindrical brush 7 which is so connected by gears and clutch arrangements to the wheels 4, 5 that irrespective of the direction of movement of the sweeper over a surface to be cleaned the cylindrical brush 7 is unidirectionally rotated to direct dust via a rubber scoop 8 to the dust collector 2. The brush 7 is mounted on a shaft 11 (Fig. 2) on the ends of which are freely mounted drums 13a and 13b which are provided with gears 17, 19, the gear 17 being in driving engagement with an idler gear 18 which meshes with a gear 9 attached to the wheel 4 and the gear 19 being in direct driving engagement with a gear 10 attached to the wheel 5. Inside the drums 13a, 13b are mounted ratchet wheels (12a, 12b), (Figs. 3 to 5, not shown) which are attached to the shaft 11 and which, in accordance with the direction of rotation of the wheels 4, 5, are alternately drivingly connected to their respective drums 13a, 13b for rotational movement therewith and to ensure unidirectional rotation of the shaft 11 to which the brush 7 is attached. The driving connection is effected by means of rollers (14) which are acted upon by stud and spring arrangements (15, 16). The sweeper may be manually or power operated and may be provided with an additional brush 6.
Patent GB-1202960-A (GB)
Title: Electron beam information transmitting apparatus
IPC: B04B5/00
Filed: 1968-10-28
Abstract: 1,202,960. Electron beam apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 28 Oct., 1968 [9 Nov., 1967], No. 51005/68. Heading H1D. In electron beam apparatus for displaying or recording binary digital information on a target 16, Fig. 1, sections of a flat sheet beam 11 produced by a gun 10 and an aperture plate 12a with the aid of a condenser lens 12 are blanked out by selective deflection at an array of deflection conductors 18 which are arranged in a line at an acute angle to the axis of the beam and which are individually connected to a data control device 20. The deflected sections of the beam are blanked at the aperture plate 14 in the vicinity of a focusing lens 15. The deflection conductors 18 are clamped in slots 36, Fig. 4, in the lower of a pair of plates 21, 22 bolted together at 24. The beam 11 passes through a passageway formed by elongated cavities 32, 34 and the narrow space between upper and lower lands 30, 31. The upper ends of the conductors 18 are flush with the surface of the lower land 31 and the conductors 18 are clamped in position by the pressure of flat springs 38, 39 on the conductor insulators 37. The conductors 18 may be shaped to extend a distance along the beam axis (Fig. 5). The target 16, Fig. 1, may be indexed upwards or downwards for the writing of adjacent lines of information or the coil 15 may deflect the beam over a field of several lines. The target may be the face of a C.R.T., a photoresist covered object or a silver halide photographic film.
Patent GB-1120643-A (GB)
Title: Rotary piston internal combustion engines
Inventor: KRAIC OTTO
IPC: F02B75/02
Filed: 1965-12-02
Abstract: 1,120,643. Rotary-piston internal combustion engines. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. Dec.2, 1965, No.51195/65. Heading F1F. A rotary-piston I. C. engine of the type having a three or more side piston planetarily rotatable within a casing having a substantially trochoidal inner profile and peripheral induction and exhaust ports includes in each piston working face a combustion chamber comprising a cavity of substantially constant depth and at least one recess of the same depth extending from the cavity towards that piston corner following the cavity in the direction of piston rotation. As described, the invention is applied to an engine having a threesided piston planetarily rotatable within a casing having a bi-arcuate inner epitrochoidal profile and its purpose is to provide a combustion chamber of shape and size to enable efficient operation during the combustion phase and at the same time prevent, e.g. direct overflow of the fresh working medium from the induction port into the exhaust port, or back-firing during the passing of a piston side over the induction and exhaust port openings into the working chamber. Fig. 2 shows a piston face 9 including a combustion chamber having a cavity 14 and a pair of recesses 15 co-operating with centrally disposed induction and exhaust port openings 17, 19 with communication between the port openings cut-off. In another embodiment, a single recess 15 is offset to one side of the median transverse plane of the piston and the openings 17, 19 offset to the other side. In a further embodiment, a single central recess 15, Fig. 4, co-operates with an exhaust port opening 19 of substantially full piston width. The cavity 14 being much shorter in this case so that as the opening 17 commences to open the amount of opening of the opening 19 is very small. Figs. 5, 8 and 9 are examples of other arrangements of combustion chambers and port openings.
Patent GB-1248205-A (GB)
Title: Improvements in or relating to the ignition of combustible mixtures of gases, vapours or the like by means of an electric spark
IPC: F23Q3/00
Filed: 1967-11-10
Abstract: 1,248,205. Spark ignition devices. SMITHS INDUSTRIES Ltd. and D. PERKINS. Nov. 7, 1968 [Nov.10, 1967], No. 51314/67. Heading F1B. A device for igniting combustible gases, vapours or the like by means of an electric spark comprises an electrode 13, 14, 15 retained in its operative position in a ceramic or other insulator 10 solely by mechanical engagement therewith.
Patent GB-1248464-A (GB)
Title: Hot gas engine
IPC: F02G1/055
Filed: 1968-10-30
Abstract: 1,248,464. 464. Hot gas engines. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Oct.30, 1968 [Nov. 2, 1967], No.51514/68. Heading F1S. In a hot gas engine, part of the exhaust gases is mixed with pure oxygen and supplied to the burner. The oxygen is pre-heated before it is mixed with the exhaust gases. The pre-heater 18 is heated by exhaust gases from the pipe 20. As shown the oxygen is mixed with exhaust gases in an injector 19. In a modification a blower is used instead of the injector.
Patent GB-1445999-A (GB)
Title: Refrigeration apparatus
IPC: G05D23/12
Filed: 1973-11-07
Abstract: 1445999 Refrigeration CONTROLS CO OF AMERICA 7 Nov 1973 [10 Nov 1972] 51576/73 Heading F4H A control valve assembly 10 for regulating refrigerant flow from the evaporator in a compression-condensation refrigeration system is closed to prevent icing of the evaporator when a sensor 82 detects a response temperature at the evaporator fins. The control valve assembly includes a sleeve valve 96 and a pilot valve 90 and the sensor 82 is connected by a capillary tube 80 to the interior of bellows 76 which are located within the valve assembly 10 and which are connected by a pin 94 to the pilot valve 90. As shown, the control valve assembly is associated with a cross-charged thermostatic expansion valve 12. When icing conditions prevail, refrigerant flow is reduced to that passing through a bleed port 102 and the thermostatic expansion valve will tend to open at a lower superheat thereby increasing the flow to the evaporator. The temperature at the bellows falls below normal causing the valve to close in anticipation of the temperature at the sensor 82 falling to that which is indicative of icing. Thus, on starting up, the evaporator fin temperature at which the valve closes drifts up.
Patent GB-1122110-A (GB)
Title: Processes for preparing 4-imino-3-cyanopiperidines
IPC: C07D211/78
Filed: 1966-11-17
Abstract: 4-Imino-3-cyanopiperidines are obtained by mixing together a solution of aromatic hydrocarbon free radicals and alkali metal ions in an organic solvent, said solution being free of elemental alkali metal, and a di-(b -cyanoalkyl)-amine of the formula <FORM:1122110/C2/1> wherein R1, R2 and R3 are hydrogen atoms o C1- 10 alkyl groups, the molar ratio of alkali metal to amine in the mixture being from 0.05 to 0.3:1, maintaining the mixture at a temperature of 20-80 DEG  C. for a period of time sufficient to precipitate from the mixture the 4 - imino - 3 - cyanopiperidine formed and recovering the latter.  The aromatic hydrocarbon may be naphthalene, anthracene, biphenyl or phenanthracene, and in the specific examples the amine starting material employed is di-(b -cyanoethyl) amine and the solvents employed are dimethoxyethane and tetrahydrofuran.