baber/WOPTO huggingface dataset:
Patent GB-650452-A (GB)
Title: Improvements in diamond abrasive wheels and other abrasive articles
IPC: B24D7/04
Filed: 1946-10-21
Abstract: 650,452. Abrasive wheels and other tools. NORTON GRINDING WHEEL CO., Ltd. Oct 21, 1946, No. 31271. Convention date, Oct. 20, 1945. [Class 60] An abrasive wheel or block comprises an abrasive layer and backing having different coefficients of thermal expansion, and one or more intermediate layers integrally united with the abrasive layer and backing and having a coefficient or differing coefficients of thermal expansion intermediate those of the abrasive layer and backing. The cup wheel shown in Fig. 1 comprises an abrasive ring A and a metal or other backing B with interposed rings R<SP>1</SP>-R<SP>4</SP> cemented or bonded together by layers J-J<SP>4</SP>. The ring A consists of a layer G of diamond grains in a vitrified bond and a supporting layer U of vitrified-bonded material united by a layer L of vitrified bond, the layers G and U being moulded successively in the same mould. The backing B may be made of steel, synthetic resins, resinoids, vitrified ceramic material or resinoid-bonded metallic powders such as aluminium. The rings R<SP>1</SP>-R<SP>4</SP> are composed of ceramic or vitrified-bonded granular material and have progressively differing coefficients of thermal expansion intermediate those of the ring A and backing B so that their junctions are not highly stressed during heating or cooling of the wheel. This may be achieved by adding different amounts of fused aluminium or vitreous silica to the mixes for the various rings. Protective agents such as aluminium, silicon, boron or compounds thereof may be employed in the mixes and may serve as body materials as described in U.S.A. Specifications 2,356,937 and 2,356,938. Alternatively mixed glasses may be incorporated as described in U.S.A. Specification 2,343,218. Examples given for the bonding material are (1) a mixture of borax, boric acid, silica, hydrate of alumina, whiting and ball clay or (2) Kentucky ball clay, ground flint and borax. The layers J-J<SP>4</SP> may be composed of vitrifiable or ceramic bond, synthetic resins or resinoids. The various rings may be preformed in quantity to appropriate axial dimensions and with appropriate thermal coefficients and stored ready for use, cup wheels of any desired axial dimension being then constructed by selecting suitable rings, stacking them on the backing with the interposed layers J-J<SP>4 </SP>and subjecting the assembly to heat to complete the bonding process. Specification 650,529 is referred to.
Patent GB-1149903-A (GB)
Title: Phenolic resins and their use as hot box foundry core binders
IPC: C08G14/08
Filed: 1966-07-12
Abstract: 1,149,903. Phenolic urea resins; foundry cores. ASHLAND OIL & REFINING CO. 12 July, 1966 [30 July, 1965], No. 31314/66. Headings C3N and C3R. A resin product comprises a condensate of phenol (P), formaldehyde (F), and urea (U) having a molar ratio F/(P + U) of 2À85-3À4 and containing 9-12% by wt., based on the amount charged of urea. The product may have a viscosity Q to Z (Gardner-Holdt). The resin may be prepared by heating P, F and U in the prescribed ratios with an alkaline catalyst to a temperature sufficient to obtain a water tolerance of 300-500%, adding acid to reduce the pH to 4À0-7À0 and heating the resultant mixture to drive off the water. The resins may be used in preparing foundry cores using, e.g. 0À25-5% of the sand (e.g. Nugent lake sand) of a resin binder according to the invention. Other materials, e.g. iron oxide, wood, cereal or pitch may be present.
Patent GB-692779-A (GB)
Title: Improvements in or relating to storing and transporting freshly plucked tea leaves
IPC: B65D81/28
Filed: 1949-12-06
Abstract: 692,779. Storing freshly-plucked tea leaf. BAKE, A. M. H. Nov. 9, 1950 [Dec. 6, 1949], No. 31329/49. Class 5(i) [Also in Groups VI and XVII] Freshly-plucked tea leaf is stored in closed containers which are preferably airtight. A vacuum may be maintained within the container; a gas having no effect on the leaf, e.g. carbon dioxide or nitrogen, and preservative substances such as acetic acid and sulphurous acid, may be introduced into the container. Substances which counteract anaerobic bacterial activity may be added to the leaf. The drum of Fig. 1 has an outer wall 1 in which is a perforated inner wall 4, and is closed in an airtight manner by two detachable covers 2 which have channels 5 leading from central apertures 6 having valve 7, for admission of gases or liquids to the drum or removal of air or moisture therefrom. Within the drum, the leaf is compressed between plates 8. In charging the drum, it is arranged vertically with the lower cover in place and the top cover removed, a plate 8 carrying a layer of leaf is pushed into the drum, whereupon a peripheral lip 9 of the plate engages the wall 4 and prevents upward movement of the plate, on the layer of leaf is placed a top plate 10 having tapered pegs 11 which penetrate the leaf, on this top plate is placed another filled plate 8 and another top plate 10 is anplied. and so on. until the drum is filled. The filled drums may be immersed in cold water; the leaf in the drums may be quick-frozen. The tea leaf is, immediately on being plucked. preferably carried in the device of Fig. 2, which comprises a light cylinder 12 having a flared mouth and a tightly-fitting removable bottom 13; the plucker places in the cylinder a quantity of freshly-gathered leaves pressed by hand to a ball, smooths out the ball to a layer, and pushes on to the layer a disc 14 having at its edge a rubber washer, which washer turns upwards against the wall of the cylinder, he later places in the cylinder a ball of the leaves next gathered and applies another disc 14, and so on; for removal of the leaf from the cylinder, the bottom 13 is detached, and the layers of leaf and the discs are pressed out. Specification 692,778, [Group VI], is referred to.
Patent GB-899707-A (GB)
Title: Improvements in skew-axis gearing with plane tooth gear
IPC: F16H1/12
Filed: 1958-10-01
Abstract: 899,707. Gear-cutting. ILLINOIS TOOL WORKS Inc. Oct. 1, 1958 [Oct. 1, 1957], No. 31368/58. Drawings to Specification. Class 83 (3). [Also in Group XXIV] In a face-type gear and mating pinion of right-angle skew-axis gearing the gear is formed with radial or inclined teeth having plane faces and the pinion is cut by a hob of similar form to the gear. The pitch point of the gearing is determined by the following relation: (Ky-x)<SP>3</SP> + [Cx + z(Ky - x)][z(1 + K<SP>2</SP>) - C] =O where x, y and z are the rectangular co-ordinates of the pitch point, the pinion axis being coincident with the x-axis and the gear axis being parallel to the y-axis and intersecting the z-axis, C is the distance between the pinion and gear axes along the z-axis and K is the speed ratio between the gear and pinion. The two sides of the teeth of the gear may have different pressure angles. Specifications 774,128 and 805,482 are referred to.
Patent GB-1018487-A (GB)
Title: Improvements in warming and shaking apparatus
IPC: B01F11/00
Filed: 1964-08-04
Abstract: 1,018,487. Agitating liquids. ROYAL ALEXANDRA HOSPITAL FOR CHILDREN. Aug. 4, 1964 [Aug. 1, 1963], No. 31375/64. Heading B1C.  Apparatus for simultaneously warming and shaking a number of samples comprises a tray 27 divided into a number of separate liquidholding compartments 30 detachably secured to a water-chamber 10 heated by a thermostatically controlled electric heater 11 and rocked about horizontal pivots as at 17 by a crank 25 ; the frequency and/or amplitude of the motion may be varied by altering the speed of the motor 20 and/or the throw of the crank 25 or length of the link 26. The crank may be replaced by a cam or eccentric. A charging device 33 comprises a number of open-ended compartments 34 in which a metered drop of reagent is placed ; by swinging down the arms 32 and rotating the knob 33a either row of containers 30 may be simultaneously charged.
Patent GB-485153-A (GB)
Title: Improvements in devices for battening down ships' hatches and the like
IPC: B63B19/24
Filed: 1937-11-16
Abstract: 485,153. Hatch - covers. HALVORSEN, D. W. Nov. 16, 1937, No. 31454. [Class 113 (i)] The battening bar 6 has two flanges 9, 10 on its outer face for guiding the wedge 5, and one flange 8 only on its inner face to engage the tarpaulin.
Patent GB-1331162-A (GB)
Title: Apparatus for removing solid particles from liquid
IPC: B03D1/24
Filed: 1971-07-05
Abstract: 1331162 Settling chamber WESTING- HOUSE ELECTRIC CORP 5 July 1971 [15 Oct 1970 31 March 1971] 31458/71 Heading BID [Also in Division C1] An apparatus for removing solids from liquid (e.g. fresh or sea water) comprises means for adding coagulant to the liquid, a number of flotation cells coupled in series with a stagnation chamber between every two cells and means for removing the solids from the surface of the liquid in the cells. As shown the apparatus comprises a tank divided by longitudinally extending baffle 34 and transverse baffles 36, 38 into an inlet zone adjacent liquid inlet 26, flotation chambers 28, 30, stagnation chamber 40 and outlet zone adjacent outlet 68, the chambers being in communication through apertures in the baffles, and skimmer 70 for removing floating solids into incinerator 18. Air diffusers 54, 56 in the flotation chambers 28, 30 are supplied with a supersaturated air solution from vessel 46 by jet pump 44 which receives air from source 58 and liquid from the outlet zone. The pressure of the solution is reduced by valves 50, 52 so that minute air bubbles are produced in the chambers 28, 30 through the diffusers 54, 56. A decreasing amount of supersaturated air solution is directed to each succeeding flotation chamber in the direction of liquid flow. Coagulant (e.g. Al 2 (SO 4 ) 3 ) from a tank 20 is added to the liquid in tank 14 provided with air diffuser 22 to aid mixing, or inlet line 26 and lime from another tank 20 (only one shown) may be added to the liquid in the stagnation chamber 40. The liquid from the outlet zone may be further treated in a carbon filter.
Patent GB-474113-A (GB)
Title: Improvements relating to leather
IPC: C14C11/00
Filed: 1936-11-19
Abstract: 474,113. Coated leather. MANSBACH, W. Nov. 19, 1936, No. 31699. Convention date, Nov. 26, 1935. [Class 140] A soft or velvet-like coating is produced on leather by coating the surface, preferably by spraying, either on the grain side or the flesh side or on both sides with a liquid or pasty adhesive, distributing on the coating loose textile fibres such as slubs, flocks, noils, fluff, nap, or burls and pressing with rollers. The product may be used in making shoe uppers and insoles, gloves and handbags. In particular, leather for insoles may be treated on the inner side, and uppers treated on both sides may be used with the grain side disposed inwardly of the shoe.
Patent GB-371773-A (GB)
Title: Improvements in and relating to ejectors
IPC: F04F5/46
Filed: 1931-11-16
Abstract: 371,773. Ejectors. BLACK, R., 736¢, 4th Avenue, Huntington, West Virginia, U.S.A. Nov. 16, 1931, No. 31774. [Class 71.] An ejector for withdrawing water from boats &c. has a casing with a side branch 3 to receive the water, and a nipple 7 beneath for the steam connection. The casing has a projecting nozzle 4 tapered exteriorly for the water and is constructed with an annular passage around the water nozzle which is connected to the steam inlet. A cap 12 is arranged above the casing and has an interior, tapered section 16 concentric to the nozzle 4 to form an annular steam passage.
Patent GB-916895-A (GB)
Title: Improvements in or relating to pressurised gas-cooled reactor servicing and/or fuelling arrangements
Inventor: SWAN RONALD GEORGE
IPC: G21C19/02
Filed: 1960-09-15
Abstract: 916,895. Servicing reactors. GENERAL ELECTRIC CO. Ltd. Aug. 31, 1961 [Sept. 15, 1960], No. 31798/60. Class 39 (4). The pressure vessel 1 of a reactor servicing machine, enabling the reactor to be serviced whilst on load by making a sealing engagement with an extension 15 of a standpipe, comprises a nozzle 7 bolted to a cylinder 6 welded to the vessel, sleeves 10, 13 making a sliding and sealing engagement with the inner and outer surfaces of the nozzle, respectively. The sleeve 10 is biased upwards by springs 12 so that normally it makes a sealing abutting engagement with a rotatable shield 5. In operation, pressurized CO 2  is fed to an annular chamber 21 through a duct 20 whereby the sleeve 13 is moved down to the position shown to engage the extension 15, gas then being fed to an annular chamber 23 through a duct 22 to move the sleeve 10 downwards. The shield 5 is rotated away from the nozzle and the standpipe and nozzle are purged with CO 2  through ducts 25, 26. A turret 4 carrying a number of servicing mechanisms is then indexed to align the required mechanism with the nozzle. The sleeve 13 is raised by supplying gas to an annular chamber 19 through a duct 18. In a modification, the sleeve 10 may have an additional lifting force provided by admitting gas to an annular space 27.
Patent GB-386393-A (GB)
Title: Improvements in or relating to strip rubber for non-slipping surfaces and other purposes
IPC: E04F11/16
Filed: 1931-11-17
Abstract: 386,393. Vehicle bodies ; luggageracks. GARE, T., Hazel Grove Rubber Co., Bramhall Moor Lane, Stockport. Nov. 17, 1931, No. 31822. [Classes 103 (ii), 103 (iv), and 108 (i).] Strip rubber suitable for non-slipping surfaces has embedded in it one or more ribbons 2 of steel wire braid with closelylying wires. One or more holes 3 may be provided to increase resiliency. The upper surface may be convex or corrugated and the lower surface concave. Fig. 7 shows a stair nosing with steel ribbon embedded in both flanges. The strip rubber is secured in place by nailing through the ribbons. It may be used to protect walls in places such as luggage vans, storerooms, and outside roof racks, and to serve as battens or laths in gangways and on stair treads.
Patent GB-187159-A (GB)
Title: An improved device for use in estimating the power required in cutting and moving material such as soil
IPC: E02D1/02
Filed: 1921-11-29
Abstract: 187,159. Hingston, W. H. Nov. 29, 1921. Levels. - In order, before ploughing, to estimate the inclination of the ground, a sighting-level 20 is fitted with a pin 21 for insertion into the handle of an earth-cutting tool. The level proper is carried on a bar 23 pivoted at one end, adjustable by a screw 24 at the other end, and provided with a sight 25 at each end.
Patent GB-210216-A (GB)
Title: Improvements in dolls' houses
IPC: A63H3/52
Filed: 1922-11-23
Abstract: 210,216. Dennis, E. H. Nov. 23, 1922. Folding models.-A collapsable doll's house has the walls and roofs made of cardboard sections which fit into grooves in wooden uprights C. The lower ends of the uprights fit into holes A in a base composed of two wooden members B that can be taken apart for packing. The uprights are notched to receive a cardboard section that forms the floor of the upper room. Specifications 11188/13 and 149,726 are referred to.
Patent GB-1049129-A (GB)
Title: Method of producing a varnish coating on articles of ethylene polymerizates, polystyrene and polyvinyl chloride
IPC: C08J7/044
Filed: 1963-08-14
Abstract: A composition for forming a varnish coat on articles of polyethylene, polystyrene or polyvinyl chloride or copolymers of said compounds comprises a partially copolymerized mixture of an acrylic monomer with an ethylenically unsaturated oil-modified glyceryl phthalate condensation resin and a polymerization catalyst, an oil-modified epoxy resin, a low molecular weight polyethylene, a plasticizer and a solvent comprising a mixture of high-boiling saturated hydrocarbons. In an example the composition consisted of a mixture of methyl methacrylate and a ricinoleic acid-modified glyceryl phthalate condensation product, a ricinoleic acid-modified epoxy resin obtained from bis-phenol A and epichlorhydrin, low molecular weight ethylene polymers, a plasticizer obtained by esterification of adipic acid and/or sebacic acid, paraffin oil, cobalt naphthenate, ethylene glycol monoethyl ester, petroleum spirit and high boiling aromatic hydrocarbons.  Pigments may be included in the composition.
Patent GB-1293320-A (GB)
Title: Gated power supply for sonic cleaners
IPC: B06B1/02
Filed: 1971-07-08
Abstract: 1293320 On/off modulation BENDIX CORP 8 July 1971 [17 Aug 1970] 32075/71 Heading H3R A pulse modulated sonic generator comprises means for converting an A.C. supply to a D.C. one from which an input signal is produced at the required sonic frequency; means 16 for inverting portions of the sonic frequency signal, the duration and frequency of the invertions being controlled by a pulse signal c; means 70 switched to a conducting state by non-inverted portions of the sonic frequency signal; and a series resonant circuit 72, 74 connected across the means 70 to produce the required pulse modulated output signal. The sonic frequency input signal is applied at A to a blocking oscillator 42 which produces a pulse signal which is applied to the base of a switching transistor 62 controlled by a pulse signal c. When transistor 62 is switched from a non-conductive to a conductive state the polarity of its output is changed, the resulting train of positive and negative pulses are applied to the gate of SCR 70, which is turned on by the positive pulses to cause resonant circuit 72, 74 to ring. During negative pulses SCR 70 remains off and no output is produced.
Patent GB-520917-A (GB)
Title: Improvements in the manufacture of composite fabric materials
IPC: D06M17/00
Filed: 1938-11-05
Abstract: 520,917. Coated fabrics; compound fabrics. MORTON, Sir J. Nov. 5, 1938, No. 32103. Drawings to Specification. [Class 140] A decorative fabric is made by adhesively attaching a. surface fabric of open texture to a supporting sheet, spreading a plastic composition over the surface fabric so as to form a film covering the fabric and filling its interstices and come flush with the supporting sheet, subjecting the plastic composition to further treatment if desired and removing the supporting sheet. The plastic may be natural or synthetic rubber, a cellulose derivative or synthetic resin in solution or aqueous emulsion. The composition may contain plasticizers, fillers and pigments. The opentexture fabric may be made by knitting, weaving or fabricating into lace, cotton, wool, linen, jute, silk, artificial silk or artificial wool, spun glass, asbestos, hair or fur fibres, or metal wire or ribbon. A suitable netted fabric has interstices 1/8 to 1/4 inch square. It may incorporate or be printed with a design. The supporting sheet is preferably a closely woven works backcloth and is adhered to the open texture fabric by gum or starch. The surface of the product may be treated with a synthetic resin and the back may be covered by adhesively attached scrim-cloth during or after the spreading operation.
Patent GB-831801-A (GB)
Title: Means for producing a fluid-tight joint and vessels including such means
Inventor: ROUSSET RENE PAUL
IPC: B67D1/04
Filed: 1956-10-22
Abstract: 831,801. Siphon bottles and aerating chambers. SPARKLETS Ltd. Dot. 10, 1957 [Oct. 22, 1956], No. 32123/56. Class 14 (1). [Also in Groups XVIII, XXV and XXVIII] A vessel or conduit for a fluid under pressure comprises two parts having a fluid-tight joint formed by a sealing body of resilient material located between and abutting against external peripheral flanges provided one on each part and a removable collar which fits over the flanges and sealing body and is locked in position by the fluid pressure acting through the sealing body. The vessel may comprise a pressure cooker, a cream aerator or, as shown, a soda-water siphon in which the upper part 11, Fig. 1, is formed with a flange 45 having a depending skirt 46 which fits over the flange 44 on the lower part 10, a rubber sealing body 47 being housed within the skirt 46. The removable collar 48 is a loose fit over the flanges and skirt and is formed in two identical halves 51, 52, Fig. 2, each having a resilient metal strip 53 riveted to it at 54. One end 53 of each strip forms a spring latch for engaging a hole 56 in the other half of the collar, release of the latch being effected by depression of a stud 57. The siphon head 12 is formed with a bore 13 closed at its outer end and communicating with an outlet passage 14. The lower enlarged end of the bore is screw-threaded to receive a threaded plug 16 having an inlet passage 17 and so shaped that the upper edge of the wall of the part 11 is gripped between the plug 16 and head 12 when the plug is screwed home. A sealing gasket 18 seals the joint between the head 12 and plug 16. The upper end of the plug 16 forms a valve seat 22 co-operating with a valve member 21 mounted on a spring-urged piston 23 sliding in the bore 13. The valve is operated by a lever 25 and lug 28 working in a slot 29 in the piston 23. The siphon is charged with gas by means located in the siphon head or, as shown, in the recessed base 31 of the siphon. This comprises a socket 32 provided with a hollow piercing pin 38 having a bore 39 communicating with the inside of the siphon via an orifice covered by a rubber sleeve 41 housed in an annular recess 42, thus forming a non-return valve. The socket 32 is externally threaded to engage an internal thread on a compressed gas capsule, a resilient washer 43 providing a gas-tight seal with the neck of the capsule.
Patent GB-672884-A (GB)
Title: Improvements in or relating to grease nipples
IPC: F16N21/02
Filed: 1948-12-13
Abstract: 672,884. Lubricant nipples. DIDSBURY ENGINEERING CO., Ltd., and BARTON, H. K. Jan. 11, 1950 [Dec. 13, 1948], No. 32124/48. Class 12 (iii). In a grease nipple of the type comprising a hollow metal spigot A screw-threaded at one end B for engagement in a tapped orifice, a cylindrical sheet metal member H is located in the nipple bore, and has an integral sealing flap J which engages an annular seat G in the bore. The flap J may be produced by punching a C-shaped slot in the base of a pressed-metal cup, or the member may be formed from a strip of sheet-metal and bent to shape. The end of the bore L may be deformed to retain the member H.
Patent GB-1354747-A (GB)
Title: Deflection circuit
IPC: H04N3/237
Filed: 1971-07-08
Abstract: 1354747 Cathode-ray tube circuits INTERNATIONAL STANDARD ELECTRIC CORP 8 July 1971 [13 July 1970] 32160/71 Heading H4T In a convergence circuit for a multi-beam cathode-ray tube the operating windings 6, 7 (Fig.) of a pair of transductors are connected in series with the horizontal deflection coils 1, 2 the control windings 8, 9 being supplied with oppositely phased outputs from the vertical deflection transformer 14. The deflection coils 1, 2 are supplied from windings 4 and 5 on the horizontal deflection transformer via the tangent capacitor 3 and linearity regulator 15. In a second embodiment the operating windings are connected in parallel with the respective deflection coils' Fig. 2. not shown).