baber/WOPTO huggingface dataset:
Patent GB-894833-A (GB)
Title: Process for preparing stable melamine-formaldehyde resin dispersions
IPC: C08J3/02
Filed: 1959-03-26
Abstract: Stable water-miscible dispersions in aliphatic polyhydric alcohols of a cationic resinous reaction product of 1 mol. of melamine, 3-12 mols. of formaldehyde and a polyfunctional aliphatic polyamine having a carbon to nitrogen ratio not greater than 4 are prepared by reacting 2 parts by weight of such a reaction product (having a viscosity of 20-800 centipoises when measured at 25 DEG  C. in aqueous solution of 35% resin solids) with 1-5 parts by weight of polyhydric alcohol at a pH up to 6 until the sulphate tolerance of the dispersion increases to at least 60. The poly-amine used in making the resin is present in amount to yield between 0,3 and 10 atoms of basic nitrogen per mol of melamine.  Suitable polyhydric alcohols are glycerol, ethylene, diethylene, propylene, dipropylene, triethylene or tetra-ethylene glycol, trimethylol propane, trimethylol ethane, pentaerythritol, dipentarythritol, butane diol, or 1, 6-hexanediol.  Reaction with the polyol is at 50-100 DEG  C. The ingredients of the cationic resin may all be reacted together preferably at a pH below 7,5, or part of the formaldehyde and the polyamine may be added in a second stage followed by acidification to a pH of 4,5-6,5.  Suitable polyamines are ethylene diamine; diethylene triamine; triethylene tetramine; tetraethylene pentamine; 3, 31-iminobispropylamine; tris-(3-aminopropyl) amine; 1, 4-diaminobutane; 3, 31-methyl iminobispropylamine; N(3-hydroxypropyl) aminopropylamine; N-(2-hydroxyethyl)-aminopropylamine, a reaction product of ammonia with a dihalohydrin, or a reaction product of a dihaloalkane with a polyamine.  In the examples, (2) formalin, triethanolamine and melamine were refluxed at 88 DEG  C. and a pH of 8,0-8,3.  After about 1 hour more formalin is added followed by 3, 31-iminobispropylamine, and reduction of the pH to 5,0 with acetic acid.  When the viscosity at 25 DEG  C. reaches 500 centipoises the mixture is cooled and reacted with propylene glycol at a pH of 5-6. (3) ethylene glycol replaces the propylene glycol (4) glycerine is used as polyhydric alcohol (5) diethylene glycol is used as polyhydric alcohol.  The products of all these examples showed much greater stability in presence of dissolved polyvalent anions as compared with products containing excess formalin or unreacted polyhydric alcohol.  Example (7) is similar but uses as polyamine a reaction product of ethylene dichloride and 3, 31-iminobispropylamine (as described in U.S.A. Specification 2,769,796).  The polyhydric alcohol used was dipropylene glycol.  The stable cationic resin dispersion had no odour of formaldehyde, and greatly improved the web and dry strength of paper.  U.S.A.  Specifications 2,769,799 and 2,769,800 also are referred to.
Patent GB-1190484-A (GB)
Title: Timing Apparatus for Use with Fluid Actuated Apparatus.
IPC: G05B19/43
Filed: 1968-03-05
Abstract: 1,190,484. Fluid pulse generators. CORNING GLASS WORKS. March 5, 1968 [March 10, 1967], No. 10560/68. Heading G3H. A fluid pulse generator comprises coaxial annuli 32 rotatable with a hollow shaft 28 and provided with radial apertures 38 which are connected to the interior of the shaft by ducts 36 and annular channels 34 in members 29, the arrangement being such that annuli 32 can be rotated relative to one another against the friction exerted by compressed "O" rings 33 to determine the relative timing of the pulses received at pure fluid amplifier inlets 53 as shaft 28 is rotated. The durations of the pulses are determined by the shapes of the apertures 38 e.g. as illustrated at 39 in Fig. (not shown).
Patent GB-770083-A (GB)
Title: Microwave attenuators and methods of their manufacture and travelling wave tubes incorporating such attenuators
IPC: C04B41/85
Filed: 1955-04-13
Abstract: 770,083. Travelling wave tubes. SPERRY CORPORATION. April 13, 1955 [May 4, 1954], No. 10641/55. Drawings to Specification. Class 39(1). [Also in Group XL(b)] The ceramic rods for supporting the helix in a travelling-wave tube are impregnated centrally with graphite attenuating material in the following manner: The rods are soaked in a solution of an organic non-volatile polyhydroxyl compound, e.g. a 40 per cent. solution of sucrose. The ends of the rods are protected by coatings of paraffin or the solution may be brushed on the central parts only. After drying, the rods are heated for 15 minutes at 400C. in an inert atmosphere to decompose the sucrose and leave a precipitate of colloidal carbon in the pores of the ceramic. The heating may be carried out in a confined space with the atmosphere constituted by. the vapours of decomposition. The rods are finally fired for 10 minutes at 1,000C. in a vacuum or a dry hydrogen atmosphere to convert the colloidal carbon to graphite. Other sugars such as lactose, glucose or dextrin may be used. The ceramic material may be aluminium or magnesium silicate. Specification 669,475 is referred to.
Patent GB-422548-A (GB)
Title: An improved machine for the manufacture of box blanks
IPC: B27F7/15
Filed: 1933-04-10
Abstract: 422,548. Reciprocating-saw machines. CHRISTENSEN, J., Mount Street, Heidelberg, Victoria, Australia. April 10, 1933, No. 10732. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 16, 1932]. [Class 145 (ii)] [See also Groups XVII, VII, and XXII] In a machine for bending flat metal strips, provided with teeth along one edge, into channel form and fixing the strips along the opposite edges of three (or four) boards which are subsequently folded up to form the sides and bottom. (and lid) of a box, the boards may, as shown, be cut from lengths 70, Fig. 1, stacked on a table between walls 75, 76, the wall 76 having a slot at its lower part through which the bottom boards are fed by pusher bars on chains 77 intermittently actuated by ratchet and pawl mechanism from the driving shaft 84; the stacks of boards may be spaced apart or, as shown, may abut with the exception of the stacks 70b, 70c which are spaced at the top by a partition 72, Fig. 9, and at the bottom by fingers 73 on spring-controlled rock-shafts 73a, the fingers being temporarily depressed by a push bar as the boards are being fed forwards. The board lengths 70 are fed over the strips to abut against a stop surface and are pressed on to the strips at the end of the strip-feeding operation by a press plate 58, Fig. 7, reciprocated vertically from the shaft 84, the boards to form the box members being cut from the lengths 70, just prior to the engagement thereof by the press plate, by a saw 83 slidably mounted in a carrier 87 reciprocated vertically from the shaft 84; the saw is also reciprocated horizontally in the carrier by a rotating eccentric pin 89 engaging a yoke 88 in the saw support and the boards are held during the sawing operation by stops which are moved up through holes in the bed 66 by links actuated from rock-shafts driven from a cam on the shaft 84. The press plate 58 carries an adjustable projection 65a which controls a clutch 54 for the strip-feeding rollers so that the desired lengths of strip are fed at successive movements of the rollers and projections 58a on the plate force the boards down on to the strips and clear of the oncoming boards while cutters 112 carried by the plate co-operate with cutters disposed below an opening in the bed to sever the strips in front of the assembled boards which are taken out of the machine by rollers 108, which also turn down the teeth of the strips projecting through the boards. The press or means connected therewith may be arranged to print, burn or mark the boards.
Patent GB-693691-A (GB)
Title: Improvements in and relating to frame lugs of cycles and like machines
Inventor: PARKER HORACE HERBERT
IPC: B21D53/86
Filed: 1950-05-02
Abstract: 693,691. Making cycle-frame lugs. PHILLIPS & CO., Ltd., J. A. April 24, 1951 [May 2, 1950], No. 10761/50. Classes 83 (ii) and 83 (iv). Stamping.-Cycle - frame lugs are pressed from a flat blank in a series of shaping operations to form an inclined dome-like boss 23, Fig. 14, which is slotted longitudinally at 33 and formed to an open-ended socket 35, Fig. 17. The boss 23 is pressed in successive stages by cup-shaped press-tools which successively increase the angle of inclination of the boss and after slotting, the socket 35 with lugs 34 is formed by forcing a plunger through the slotted end. The wings 24 of the blank are cut away at 29, bent to cylindrical shape, and welded or brazed together. In a modification the wings 24, Fig. 21, are pressed to form ears 45 with apertures 49 for a clamping bolt used to secure a tube within the lug.
Patent GB-1521592-A (GB)
Title: Hydrophone
IPC: B06B1/06
Filed: 1976-03-17
Abstract: 1521592 Hydrophones FRANCE ARMED FORCES MINISTER OF 17 March 1976 [11 April 1975] 10806/76 Heading H4J A hydrophone comprises a piezo-electric transducer 8 embedded in synthetic resin 12 forming a surface coating on a reflector to which it is thereby attached. The transducer consists of a flexible membrane 9 attached to a brass ring 11 and carrying on one or both sides a titanium zirconate disc sandwiched between electrodes. The reflector consists of an elastomeric casing 5 containing metal plates 6a, 6b, sandwiching interwoven wires 7 to prevent collapse under hydrostatic pressure.
Patent GB-1193391-A (GB)
Title: A Process for the Production of Low Sulphur and Phosphorus Steel from Cast Iron by Using a Synthetic Slag, and a Synthetic Slag Suitable for the Process
IPC: C21C5/36
Filed: 1968-03-06
Abstract: 1,193,391. Producing steel. CENTRO SPERIMENTALE METALLURGICO S.p.A. March 6, 1968 [March 20, 1967], No. 10853/68. Heading C7D. Steel with less than 0À015% each of S and P is produced from cast iron in an oxygen blown converter to which is fed a synthetic slag-forming material comprising a partially or totally sintered mixture containing lime or limestone and an iron oxidecontaining material. The mixture may consist of 95-50% CaO (as limestone powder) and 5-50% FeO (as powdered iron ore), with or without 10-20% fine coke, and may be sintered at over 1000‹ C. on a Dwight-Lloyd machine. Prior to sintering, the mixture may be pelletized in a humid atmosphere until at least 7% Ca(OH) 2  is present, and the pellets treated with air or CO 2 .
Patent GB-1363366-A (GB)
Title: Method for manufacture of omikron-phenylphenol
IPC: C07C37/07
Filed: 1972-03-08
Abstract: 1363366 o-Phenylphenol AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 8 March 1972 [11 March 1971] 10886/72 Heading C2C o-Phenylphenol is prepared by contacting the product of the bimolecular dehydration-condensation of cyclohexanone with a bed of a catalyst consisting of one or more of the metals palladium, platinum, indium and rhodium, and an alkali supported on an inactive carrier and heating the condensate to a temperature in the range 230-520 C. in the presence of an inert gas. Preferred inactive carriers are alumina, silica-alumina, silica, active carbon and mixtures thereof. Suitable alkalis are, for example, sodium hydroxide, potassium hydroxide, lithium hydroxide and barium hydroxide.
Patent GB-591046-A (GB)
Title: Improvements in or relating to propulsion means for aircraft and the like
IPC: F02C6/00
Filed: 1945-04-30
Abstract: 591,046. Toothed gearing. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. April 30, 1945, No. 10909. Convention date, July 13, 1944. [Class 80 (i)] [Also in Groups XXVI] and XXXIII] An aircraft propulsion unit using a variable pitch airscrew and propulsion jets comprises a multi-stage centrifugal or axial flow compressor D and a multi-stage axial flow turbine E. The turbine drives the compressor through a coupling F and the air-screw A is geared to the up-stream end of the compressor shaft 12. The gear between the compressor shaft and the air-screw comprises a wheel 41 on the shaft 12, a set of three double pinions 42, 44 and a wheel 46 followed by an epicyclic bevel gear train 47, 48, 49 with a clutch device 56, 57 to restrain the spindles of the planet wheels 48 from revolving around the main axis and finally a wheel 53 gearing with a set of pinions 54 which also gear with a fixed wheel and are mounted on a disc 56 integral with the propellor shaft. The airscrew is driven through a dog-clutch as described in Specification 591,048, [Group XXXIII]. The pitch-changing gear of the air-screw may be as described in Specification 580,745, [Group XXXIII].
Patent GB-1461462-A (GB)
Title: Light source for electric illumination
IPC: F21V17/04
Filed: 1974-03-12
Abstract: 1461462 Electric incandescent lamps ITT INDUSTRIES Inc 12 March 1974 [12 March 1973] 10986/74 Heading H1F [Also in Division F4] An electric lamp comprising a bulb and a base is provided with an outer envelope in the form of a one-piece plastics moulding which completely surrounds the bulb and is fixed directly to the base, or to the bulb in a region adjacent the base, the outer envelope being otherwise spaced from the bulb. The outer envelope may be fixed to the lamp by any means such as pressure contact or an adhesive, and may be removable. It may have a decorative shape and may be coloured, translucent, opal, polished, roughened, ridged, granular or refractive.
Patent GB-1583836-A (GB)
Title: Data processing apparatus
IPC: G06F11/32
Filed: 1978-03-20
Abstract: In a plural unit system, particularly of the data processing type, controlled units such as tape drives, constitute status reporting units (SRUs) which report status including error conditions to one or more status analyzing units such as computers (CPUs), programmable controllers, and the like. Each of the SRUs has a register, such as a shift register, associated therewith for receiving error status indications. The signal state of the shift register when all zeros indicates error-free status, any nonzero state signifies an error. An OR circuit receives signals from all of the bit positions of each of the respective shift registers and combines same into an SRU group error indicating signal. A second register, also a shift register, associated with the respective SRUs receives the output of the OR circuit in one of its bit positions, the bit position indicating the address of the reporting SRU. The output of the two shift registers associated with each of the SRUs are serialized onto one wire and supplied to an intermediate shift register. Combined signal status in the intermediate shift register are then supplied to one or more status analyzing units in a two byte format, i.e., one byte for the address and a second byte for the error status. An appropriate status analyzing unit then determines the error condition of the SRU. If more than one SRU is in error, then the address byte will have more than one binary one indicating state requiring further analysis by the respective status analyzing units.
Patent GB-610741-A (GB)
Title: Improvements in or relating to chairs with spring-supported back-rests
IPC: A47C7/44
Filed: 1946-04-10
Abstract: 610,741. Seats. STOLL, A. April 10, 1946, No. 11045. Convention date, April 13, '1945. [Classes 52(i) and 52(ii)] The back-rest 1 of a seat 4 is pivoted at 2 on a fixed bracket 3 and supported by a cranked leaf spring 5 pivoted at 7 to the seat and at 6 to the rear of the back-rest. The pivots 6, 7 may be adjustable.
Patent GB-1177171-A (GB)
Title: Apparatus for Plasma Production and Interaction
Inventor: CONSOLI TERENZIO
IPC: H05H1/16
Filed: 1967-03-09
Abstract: 1,177,171. Fusion processes. COMMISSARIAT A L'ENERGIE ATOMIQUE. 9 March, 1967 [11 March, 1966], No. 11066/67. Heading G6P. In a nuclear fusion device, plasma beams are formed, and react with each other, in the cavity 10. The gas in the cavity is ionzed by an H.F. electric field formed by the resonating, in the TE 112 mode, of the cavity, excited by klystrons 14, 14<SP>1</SP>. The electrons are attracted to the medial plane and so form the identical plasma beams which pass through each other and oscillate in the central zone. Axial containment is effected by magnetic microns formed by windings 24, 24<SP>1</SP>, 26, 26<SP>1</SP>. A radial magnetic field is formed by conductors 28. Injection of ionized gas is effected by the focusing of a laser beam a lithium hydrate within the cavity 10.
Patent GB-910253-A (GB)
Title: Apparatus for tufting mattresses, cushions and the like
IPC: B68G15/00
Filed: 1960-03-29
Abstract: 910,253. Mattress tufting machines. WHALEY, F. P. March 14, 1961 [March 29, 1960], No. 11090/60. Class 112. A mattress tufting machine is adapted to insert a plurality of tufts simultaneously. The machine comprises a fixed frame 1 in which is journalled, by means of a shaft 26, a rotatable transverse frame 2 to which is rigidly fixed a first row of spaced hollow tufting needles 3 and a second row of oppositely-directed needles 3<1>. Each needle contains a slidable rod 6, one end of which is fixed to a spring-biased socket 10, whereby the other end retains a tuft head 8 in a cavity 7 adjacent the needle point. A mattress-supporting frame 4, pivoted to frame 1, is supported in an inclined position by springs 5. The mattress 17 abuts a bracket 19 fixed to an endless chain 21 passing around sprockets 22, 23, 24. The mattress is drawn towards the needles 3, against the bias of the springs 5, by pneumatic or hydraulic jacks 15 secured to a compressor bar 16 which engages the mattress. When the cavities 7 are clear of the mattress, bars 18 projecting from the ends of bar 16 engage a pivoted bar 11 to engage the latter with the sockets 10, whereby the rods 6 are retracted to free the tuft heads 8. A sprocket 29, rigid with sprocket 22, is connected by a chain 28 to a sprocket 27 rigid with shaft 26. When the latter is turned through 180 degrees by means of a wheel 25, the needles 3, 3<1> are reversed, and the mattress is raised to a new tufting position. A disc 34, rigid with shaft 26, is formed with diametrically-opposed notches 33 engageable by a detent 32 on a spring-biased arm 31 to halt the parts in the tufting positions. The rods 6 of the needles directed away from the mattress are retracted by a fixed cam 20 to enable the tuft heads to be inserted in the cavities 7. The completed mattress slides down a shoot 35. Specification 903,464 is referred to.
Patent GB-1078458-A (GB)
Title: Screw-receiving fastener and method of making same
IPC: B21D53/20
Filed: 1966-03-14
Abstract: 1,078,458. Making fasteners. BISHOP & BABCOCK CORPORATION. March 14, 1966 [Oct. 21, 1965], No. 11113/66. Heading B3A. [Also in Division F2] A screw receiving fastener is formed in a metal sheet 11 by first pressing a rounded protuberance 10 from the sheet, radially slitting the protuberance at 13 and simultaneously performing a coining operation to produce a helical section 15 extending from opposite edges of the slit, and finally punching a central hole (16) (Fig. 6, not shown) to receive a screw. The helical inwardly facing perimeter of the hole is engaged by the thread of a screw used with the fastener.
Patent GB-537675-A (GB)
Title: Means for masking the roof lights in factories or other buildings
IPC: E04D13/03
Filed: 1940-07-02
Abstract: 537,675. Window-shutters. ROBERTS, A. July 2, 1940, No. 11142. [Class 20 (iii)] For masking roof-lights, a movable frame 3 is provided carrying a number of spaced shutter panels 8 preferably of corrugated Sheet metal, and mounted on rollers 6, 6a running on angled tracks 7, so that when moved longitudinally the panels may be transferred from an obscured part of the roof to cover a glazed part 2. Owing to the obscured parts of the roof, a daylight transmission of about 50 per cent of the glazed area is obtained. The shutter frame 3 is operated by a cable 10 having at its ends chains 11 engaged round sprockets 12, 13 one of which is driven by a shaft 14. The angle rails 7 are carried by cleats 21 secured to the roof purlins 22. A gutter 23 at the upper part acts also as a light shield, depending valances 25 also acting as light shields. Brackets 26 prevent the shutter from being lifted off by the wind.
Patent GB-1353491-A (GB)
Title: Information retrieval apparatus for locating a selected recorded image
IPC: G03B21/11
Filed: 1971-04-26
Abstract: 1353491 Selected position locating EASTMAN KODAK CO 26 April 1971 [24 April 1970] 11264/71 Heading G4H  In apparatus for locating in a particular position a selected image from a plurality of images recorded on a film strip, wherein the images are identified by sequentially assigned numbers the number of the image presently in the said position being successively compared with the number of the selected position, the comparison causing the strip to be driven in an appropriate direction, means are provided whereby if the difference between the two numbers is greater than a predetermined number, the strip is caused to move in a direction opposite to the said appropriate direction. Such operation will occur in the event of the digital components having, e.g. a 5 decade capacity, the number of images being 40,000 with, e.g. the first image being labelled 80,000-a selection of the 108,000 image being inserted as 08,000. A desired image number is inserted by means of a key-board of 10 decimal labelled lines and this number is stored in binary-coded decimal form in 4 shift registers of 5 digit capacity. Similarly a 5 digit number is stored, in b.c.d. form in a counter and comparison is effected between corresponding digits sequentially in order of magnitude to give a " 1 " or " 0 " signal at both J and K inputs of two flip-flops, one of which will provide a " 1 " output upon sequential interrogation by clock pulses to cause the strip to be driven in one of two linear directions. As the strip is moved, marks are photo-electrically sensed to increment or decrement the counter and the comparison continues until coincidence occurs when the arrangement is such that both flip-flops simultaneously change state and a stop command results. In addition the three most significant bits of the most significant digit are investigated in a system of gates to reverse the comparator decision if certain conditions are not indicative of the said large difference. The direction of the counter may be operated by the system disclosed in Specification 1,353,492.
Patent GB-1496715-A (GB)
Title: Apparatus for the removal of water from suspensions
IPC: B30B9/24
Filed: 1975-03-18
Abstract: 1496715 Travelling band press filter U PASSAVANT AG MICHELBACHER HUTTE [trading as PASSAVANT-WERKE MICHELBACHER HUTTE] 18 March 1975 [21 March 1974] 11289/75 Heading BID Water is removed from sludge layer 6 on filter belt 1 by pressure applied by belt 7 as the belt 1 moves over stationary convexly curved support screen 4. More water is removed as belts 1, 7 pass between rollers 9, 10. The screen which may comprise a plurality of bars or a punched plastics sheet, preferably scrapes the belt 1 to aid removal of water therefrom. Guide roller 8 may be provided with adjustable brake means.
Patent GB-462088-A (GB)
Title: Improvements relating to arc-converters
IPC: H01T11/00
Filed: 1936-04-20
Abstract: 462,088. Arc converters. ALLGEMEINE ELEKTRICITATS-GES. April 20, 1936, No. 11325. Convention date, April 18, 1935. [Class 39 (i)] In a multi-phase converter in which the arc gaps are located in a gas stream, the gaps are screened from one another but are in communication so that the rise in gas pressure produced when an arc is struck at one gap is communicated to other gaps to prevent backignition. Converters 1, 2, 3 each comprises main electrodes 4, 5 and screen electrodes 10, 11 and are connected by passages which may be formed of insulating material. The axial and radial ,gas streams are supplied by pipes 16, 17. In other forms, the gaps are arranged in a common housing and are separated by partitions, or the pipe 17 may be adapted to convey the pressure wave from one gap to another.