baber/WOPTO huggingface dataset:
Patent GB-757468-A (GB)
Title: Improvements in universal joints
IPC: F16D3/32
Filed: 1954-10-13
Abstract: 757,468. Universal joints. HULSE, G. C. Oct. 13, 1954 [Oct. 15, 1953], No. 29494/54. Class 80(2) A constant velocity ratio universal joint between shafts 3, 4 comprises a pair of telescoping members 1, 2 locked against rotation relatively to each other, each shaft having a universal connection 7, 8, &c. with one of the telescoping members while a universal coupling 11 connects the ends of the shafts, the coupling 11 preventing axial movement but not relative rotation between the shafts and torque passing only through the telescoping members. As shown, the telescoping members 1, 2, Figs. 1. 2 are of approximately square cross-section, the inner member 2 having pushed-in portion 2c and portions cut away at the sides leaving only axial projections 6, to reduce friction between them. In one modification (Fig. 4, not shown), the telescoping members are of tubular crosssection and the inner member carries radially outwardly directed lugs sliding in axial slots in the outer member. In another modification (Fig. 8, also not shown), the telescoping members are again of tubular cross-section and the inner member has external axial splines sliding in internal splines in the outer member. The universal connection between each shaft 3, 4 and its telescoping member comprises a yoke 5 pivoted at 7 to the telescoping member and at 8 to the shaft. The yoke 5 may be of circular cross-section (Fig. 9, not shown). The coupling 11 between the ends of the shaft is a Hooke's joint, the yoked arms 12 of which have stems 13 rotatably mounted by bushes 12a in the ends of the shafts and prevented from moving axially relatively thereto -by nuts 14 screwed on to the threaded ends of the stems. The bushes 12a, &c. are lubricated through nipples 15. The joint is particularly applicable to the power take-off shafts of agricultural tractors.
Patent GB-1080372-A (GB)
Title: Inductive test-data transmitter
Inventor: EHRHARDT JOACHIM
IPC: G01D5/22
Filed: 1964-07-21
Abstract: 1,080,372. Inductors. CARL ZEISS JENA VEB. July 21, 1964, No. 29513/64. Heading HIT. [Also in Division G1] A transmitter converting mechanical changes in length into corresponding variations of electrical magnitude comprises coils 1, 2 having a common axis enclosed in a rotationally symmetrical iron shell 3 and separated by an internal iron web 8. A bore extends through the shell and web coaxially with the coils, and a plunger armature 6 slides therein on a non-magnetic pin 4 engaging bearings 5. The magnetic circuits of the coils are closed through two paths comprising shell, web, plunger, and two variable airgaps 7 between the respective plunger faces and the conjugate inward edges of the shell at its intersection by the bore; displacement of the plunger cooperating with both paths to widen one airgap and narrow the other. The pin may be magnetic in non-magnetic bearings.
Patent GB-511466-A (GB)
Title: A machine for the ornamentation of welts
IPC: A43D93/00
Filed: 1938-10-12
Abstract: 511,466. Ornamenting leather &c. HOZA, J., and BATA AKCIOVA SPOLECNOST. Oct. 12, 1938, No. 29589. [Class 93] [Also in Groups VII and VIII] A machine for treating a strip of material from which a welt is to be made comprises a cutter for forming transverse flutes, a feeding device and dyeing, drying and smoothing devices. A rotating shaft 25 carries a feeding wheel 3 formed with peripheral ribs for engaging flutes cut by a knife 4 secured to the feed wheel. A pressure roller 5, backed by spring, co-operates with the feed-wheel. A wheel 8 provided with teeth to engage the flutes dips into dyeing liquid and transfers this to the strip. The strip then passes to a drying device comprising spaced pairs of rolls 9 with flanges 17 for separating adjacent bights of the strip. A roller similar to the feedwheel 3 and co-operating with a pressure roller 5 backed by a spring stronger than the first, then burnishes the strip. A second wheel similar to the wheel 8 then applies coloured wax to the strip. A second drying device is followed by a second burnisher, the pressure roller being backed by a still stronger spring. It is again dried, and finally burnished under still heavier pressure. All the burnishing wheels are on the shaft 25. '
Patent GB-209870-A (GB)
Title: Improvements in presses for tennis racquets or other articles
IPC: A63B60/44
Filed: 1922-10-31
Abstract: 209,870. Dale, Forty, & Co., Ltd., and Wilkes. F. W. Oct. 31, 1922. Racket presses. - In a securing bolt, for racket, trouser &c. presses, of the kind having a dome-shaped head or nut with a pivoted finger-piece adapted to lie flat on the surface of the. press, recesses are formed in the under surface of the head or nut to receive the pivotal shanks of the finger-piece and means are provided for closing the recess to secure the finger-piece therein. The finger-piece 7 has inturned ends 8 which are retained within recesses 6 in the bolt head bv means of a washer 9 forced on to the bolt. The bolt screws into a sleeve 4 attached by a left-hand screw thread to the lower frame member.
Patent GB-513559-A (GB)
Title: Improvements in or relating to combined closures and pouring devices for bottles or like containers
IPC: B65D47/28
Filed: 1938-10-13
Abstract: 513,559. Closures for bottles &c. PERSHALL, R. H. Oct. 13, 1938,-No. 29691. [Class 125 (iii)] A combined closure 1 and pouring device 5 for viscous liquids comprises a resilient slide 9 which can be drawn back by a spring trigger 14 to uncover an upwardly enclosed pouring lip 6 in a stopper. The slide 9 is held between lugs 8 and is curved so as to contact closely with the lip 6. When the trigger is released the slide springs back and closes the pourer 5 and at the same time shoots off any drip likely to occur at the mouth of the device. A vent 24 is provided in the stopper and a projection 25 on the trigger keeps this clean when the trigger is released. Specification 513,520 is referred to.
Patent GB-519548-A (GB)
Title: Improvements in and relating to striking clocks
IPC: G04B21/06
Filed: 1938-10-14
Abstract: 519,548. Striking clocks. NEW, C. E. Oct. 14, 1938, No. 29801. [Class 139] A striking clock has additional mechanism by which the hour hand A if moved slightly will jump independently of the minute hand to the next hour forward or backward as desired through the pressure of a spring knee-piece E fixed to the hour wheel F, on a twelve-pointed star wheel C to which the hour hand is connected by means of a pipe over the hourwheel boss and to which the snail B is also'fixed.
Patent GB-1344175-A (GB)
Title: Production of extruded polyester materials
IPC: C08G63/20
Filed: 1971-06-25
Abstract: 1344175 Extruding polyester EASTMAN KODAK CO 25 June 1971 [29 June 1970] 29814/71 Heading B5A [Also in D vision C3] A polyester, e.g., polyethylene terephthalate, is made and extruded by adding an aliphatic polyhydroxy compound containing at least three hydroxy groups into the mixing phase of an extrusion apparatus charged with polyester prepolymer and providing a mechanical energy input of 15-150 ft.-lb/sec. per pound of prepolymer, e.g., by stirring at 25-150 RPM or other agitation, for a period sufficient to increase the inherent viscosity of the prepolymer by at least 0À1 dl/g. to permit polymer extrusion and attainment of desired inherent viscosity in a single and continuous extrusion step. The aliphatic polyhydroxy compound may have the formula R(OH) n  in which R is a polyvalent aliphatic radical having 3-6 carbon atoms and n is an integer of 3-6, e.g., glycerol or sorbitol, or the formula R(OH 2 OH) n  in which R is a polyvalent aliphatic radical containing 1-6 carbon atoms and n is an integer of 3-6, e.g., pentaerythritol or trimethylol ethane or propane. The prepolymer may be produced by ester exchange or interchange, to produce for example bis - (2 - hydroxyethyl) terephthalate which is then polymerized to the prepolymer, or from polyester scrap. 2000-20,000 p.p.m. of the aliphatic polyhydroxy compound based on the weight of the prepolymer may be added. The prepolymer is preferably maintained in the extrusion apparatus for from 20 minutes up to 3 hours under an inert atmosphere at 260- 290 C. while being subjected to the application of 20-100 ft.-lb/sec. per pound of prepolymer of mechanical energy by means of stirring.
Patent GB-1152506-A (GB)
Title: A process for the manufacture of Enriched Colloidal Silver
IPC: G03C1/825
Filed: 1967-06-28
Abstract: 1,152,506. Enriched colloidal silver. CIBA Ltd. 28 June, 1967 [28 June, 1966], No. 29875/67. Heading C1A. [Also in Divisions C2 and G2] Enriched colloidal silver is produced by treating a dilute aqueous dispersion of silver, obtained by reducing silver salts, with an agent capable of flocculating colloidal silver in a medium of pH of 3 to 8, separating the flocculate at a pH of 3 to 8, redispersing it in enriched form in a protective colloid in the presence of citrate ions. The protective colloid is preferably gelatine. Suitable flocculating agents comprise the colourless compounds containing at least one acid group imparting solubility in water, at least one six-membered heterocyclic group consisting of 3 to 4 carbon atoms and 3 or 2 nitrogen atoms, and at least one aromatic residue, for example, as described in Specification 1,041,085. Other flocculating agents include those compounds obtained by condensing a diaminodiphenyl sulphonic acid particularly of Formula I where X stands for a methyl group or for a hydrogen atom, with a thiophene, 2,5-dicarboxylic acid dihalide in the molecular ratio of 1: 2 to 2: 1. The flocculate is advantageously redispersed at a pH of 5 to 7, and the citrate ions are preferably added in the form of a watersoluble citrate, e.g. sodium citrate. The dispersions advantageously contain 1 to 10% of metallic silver, 4 to 10% of the protective colloid and 3 to 8% of citrate ions (calculated as citric acid, referred to dry gelatine).
Patent GB-1065256-A (GB)
Title: Process of freezing a subterranean water-bearing formation
IPC: E21D1/12
Filed: 1965-07-15
Abstract: 1,065,256. Soil stabilization. PITTSBURGH PLATE GLASS CO. July 15, 1965 [July 16, 1964], No. 29981/65. Addition to 959,158. Heading E1F. A method of freezing a subterranean waterbearing formation comprises establishing a plurality of separate cavities circumscribing the region to be frozen, each cavity separately openly communicating with an introduction hole extending through the formation through which hole a liquid at a temperature below 0C. is fed to the cavity and with a further such hole through which liquid is withdrawn from the cavity.
Patent GB-1392044-A (GB)
Title: Corrosion inhibiting composition
IPC: C23F11/08
Filed: 1971-06-26
Abstract: 1392044 Corrosion inhibition CIBA-GEIGY AG 26 June 1972 [26 June 1971] 30064/71 Heading C7E A corrosion inhibitor comprises a synergistic combination (as defined in the Specification) of an inorganic nitrite (e.g. NaNO 2 , KNO 2 ) and a compound of Formula:- where R<SP>1</SP>, R<SP>2</SP> are H, a hydrocarbyl or hydroxy substituted hydrocarbyl radical each containing up to 8 C atoms, R<SP>3</SP> and R<SP>4</SP> are H, a hydrocarbyl or hydroxy-substituted hydrocarbyl radical each containing up to 8 C atoms, a carboxyalkyl or alkoxy alkyl radical containing up to 3 C atoms, an alkylene phosphonic acid grouping containing up to 4 C atoms or an aralkylene phosphonic acid such that not more than 2 phosphonic acid groupings separated by less than 2 C atoms may be attached to any N atom, R<SP>5</SP> is H or an alkylene phosphonic acid containing up to 4 C atoms, A is a saturated divalent hydrocarbyl radical containing up to 6 C atoms, m is 0 or 1-60, n is 0 or 1; when m=0, R<SP>4</SP> may be an OH group or R<SP>3</SP> and R<SP>4</SP> together with N may form a 6-mechanical ring; when m=1, the group R<SP>3</SP>NANR<SP>5</SP> may form a heterocyclic ring, and when m is greater than 1, the R<SP>5</SP> groups may be the same or different; or water-soluble salts thereof, such as alkali metal, NH 4 , ethanolamine, alkylamine, arylamine and guanidine salts. 50-10,000 p.p.m. are added to water in contact with a metal such as steel, Cu, brass, or Al; silicate, zinc ions, polyphosphate, Cr ions, or amines may also be added. Lists are given of phosphonic acids suitable for use.
Patent GB-802875-A (GB)
Title: Process for the treatment of boiler feed-water
Inventor: THURSTON ERIC FREDERICK
IPC: C02F5/10
Filed: 1955-10-20
Abstract: 802,875. Preventing incrustation. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 28, 1956 [Oct. 20, 1955], No. 30065/55. Class 123(1) The effect of soluble polyphosphates used alone or with the addition of a tannin in reducing scale deposition in boiler economizers. feed tanks, &c., or in cooling water systems is increased by the addition to the water of a soluble magnesium compound such as the chloride nitrate or sulphate, the latter being preferred. The preferred polyphosphate is sodium hexametaphosphate but sodium tripolyphosphate and tetrasodium pyrophosphate may also be used, the polyphosphate concentration being from 0.2 to 5 parts per million. The tannin concentration, if present, is from 2 to 20 parts per million whilst the range of total magnesium compounds in the water expressed in terms of calcium carbonate is adjusted to from 0.10 to 2.0 times the calcium hardness of the water by addition of the soluble magnesium compound.
Patent GB-1056884-A (GB)
Title: Method and apparatus for mixing glass batch materials
Inventor: JR CHESTER JUSTUS BROWN
IPC: B01F29/83
Filed: 1964-07-29
Abstract: <PICT:1056884/C1/1> Glass batch materials are partially mixed dry, a predetermined amount of liquid is sprayed on to the surface of the batch while continuing the mixing, and mixing is then continued until a substantially homogeneous mix having the liquid uniformly distributed is obtained.  The ingredients are fed into a rotary pan 16 in which mixing paddles 33 carrying high and low level shovels 35, 36 are rotatable in a direction opposite to that of the pan.  Also rotatable in the pan, and in the same direction at a high speed is an annular member 40 carrying a number of flexible rods reaching nearly to the bottom of the pan.  Mounted above the pan is a spray system consisting of pipes 43, 44 having nozzles 49, 50, 51, 52 so constructed and arranged that the sprays avoid direct contact with the paddles, the member 40, or the walls of the pan.  In a modification, two members 40 located in opposite quadrants of the pan, are provided.
Patent GB-232523-A (GB)
Title: Improvements in hide working machine
IPC: C14B1/40
Filed: 1924-12-15
Abstract: 232,523. Dehn, F. B., (Aulson & Sons, Inc., J. W.). Dec. 15, 1924. Boarding.-A machine for graining, boarding, or softening hides and skins after they have been tanned comprises a table 38, Fig. 1, for supporting the folded hide, a roller 15, Fig. 2, having a semicylindrical surface 16 lined with rubber 17, which is reciprocated from one end of the table to the other by means of a connecting rod 30 and a crank pin 29, and is simultaneously rotated during alternate strokes by means of racks 23, 24 on opposite sides respectively; and brakes 34 cushioned by springs 36 for stopping the motion at the end of each stroke. The racks impart rotation to the rollers by meshing with free spur wheels 18 carrying pawls 21 adapted to engage shoulders 20 on cams 19 on the roller shaft 14. The table is raised and lowered hy end rods 40 pivoted to levers 41 interconnected by a link 43 pivoted to a treadle 44. The upward movement of the table is limited by adjustable screw stops.
Patent GB-1474804-A (GB)
Title: Writing instruments
IPC: B43K15/00
Filed: 1974-07-09
Abstract: 1474804 Writing appliances AURORA SpA 9 July 1974 [31 July 1973] 30285/74 Heading B6P The rear end of a reservoir pen or other writing instrument is provided with spring- urged projection 5 to hold a cap 10 in place when the pen is being used, the projections being formed on resilient axial arms 3, which bias them outwardly through apertures in the pen body. Two sets of projections may be provided, one set being 90 degrees apart from the other around the body of the pen and staggered from it along the pen. One set may have much less radial deformability than the other, and act in part as a guide for the sliding cap.
Patent GB-490439-A (GB)
Title: Improvements in or relating to the manufacture of hardened articles
Filed: 1936-11-06
Abstract: Hardened articles such as tools are made from steels having a nitrogen content of over ,007 per cent and containing also a nitrogen binding agent or agents.  The amount of the binding agent is sufficient to deoxidize the material and to bind the nitrogen, for which purpose not less than ,001 per cent of the binding agent is present.  Aluminium, titanium or vanadium may be used as binding agents, the quantity employed being preferably less than 0,25 per cent.
Patent GB-1467043-A (GB)
Title: Mechanical energy absorber
IPC: F16F7/09
Filed: 1974-07-09
Abstract: 1467043 Energy absorbers GROUPEMENT POUR LES ACTIVITIES ET AVANCEES 9 July 1974 [13 July 1973] 30348/74 Heading F2S An energy absorber comprises a fuel cylinder 1 containing a helical spring 7, a second cylinder 8 arranged axially with and having a diameter and a length less than the fuel cylinder 1, an axial rod 2 passing through the cylinder 1, 8 and having at one end a piston 5 against which the spring 7 bears, plastics material 12 force-fitted into the second cylinder 8 and a boss 14 on the axial rod 2 with an interference fit in the plastics material 12. The second cylinder 8 may have a diameter which varies along its length, may have walls which are sufficiently thus to deform with movement of the boss 14 and may extend in the opposite axial direction to the fuel cylinder 1. There may be a latch to hold the piston 5 in the inward position.
Patent GB-857660-A (GB)
Title: Improvements relating to reversible cushions
Inventor: DUNN RICHARD LAWRENCE
IPC: A47C27/15
Filed: 1956-10-06
Abstract: 857,660. Mattresses. DUNLOP RUBBER CO. Ltd. Aug. 9, 1957 [Oct. 6, 1956], No. 30518/56. Addition to 758,918. Drawings to Specification. Class 52(4) Instead of being made of sponge-rubber, the cushion of the main invention is made wholly or in part of resilient cellular synthetic resin material such as polyurethane foam, the compositions described in Specifications 748,990 and 785,256, or material including a cellular vinyl resin and a foam rubber and/or a polyurethane foam.
Patent GB-244103-A (GB)
Title: Improvements in or relating to high frequency electric signalling systems
IPC: H03C7/02
Filed: 1925-12-03
Abstract: 244,103. Westinghouse Electric & Manufacturing Co., (Assignees of Carey, C. E.). Dec. 4, 1924, [Convention date]. Void [Published under Sect. 91 of the .4et]. Modulating systems; wired-wireless systems; duplex signalling; aerials.-Carrier-wave energy, whether radiated or flowing in a conducting network, is modulated at a distance from the source of high-frequency supply. As shown in Fig. 2 the conducting network 34 is a closed loop fed with carrier-wave energy from a source 2. Absorption modulators 36, 37, 38, which may be of an easily portable type, are located at the points shown, and serve to impress Morse or telephonic signals, which are then detected by suitable receiving apparatus 43, 44, 45. In a modified arrangement one or more high-frequency oscillators of different frequencies are electrostatically coupled to a telephone or high-tension line-wire, and a number of modulating and receiving sets are located at intermediate points. By modulating the carrier waves of different frequency, duplex working may be carried out. Similarly duplex communication may be effected with the system shown in Fig. 2 by separately modulating the carrier energy travelling in opposite directions around the loop circuit 34 from the input coil 6. Fig. 3 represents a radiating system in which a directed carrier wave from the reflecting-aerial system 4, 6, 51 is modulated by a portable or other absorption set 52, 53, 55, located at any point between the origin of the carrier waves and a receiving set 56.
Patent GB-670146-A (GB)
Title: Wall covering and method for obtaining same
IPC: C09D5/02
Filed: 1949-11-29
Abstract: A composition for use as a wall covering comprises an emulsion and a filler, the emulsion containing soft soap, linseed oil, oil varnish, turpentine oil and water and the filler containing chalk dust, marble powder, gypsum and fibrous material.  The filler may comprise two parts to each part of emulsion.  The composition may be prepared by boiling a mixture of water, soft soap, linseed oil and oil varnish and then adding the turpentine oil and finally the filler.
Patent GB-1327559-A (GB)
Title: Speed measuring device for motor vehicles
IPC: G01P3/487
Filed: 1972-06-30
Abstract: 1327559 Tachometers MOTO METER GmbH 30 June 1972 [17 July 1971] 30694/72 Headings G1N and G1K A tachometer for measuring the angular speed of a shaft 3, Fig.1, comprises a 4-pole disc magnet 4 surrounded by a magnetic ring 6 carrying a flat coil 7. The A.C. induced in coil 7, shown as G in Fig.3, is amplified at 9 to produce a square wave output of the same frequency from transistor 10, the negative pulses being short-circuited by diode 13 and the positive pulses differentiated at III and averaged at IV to produce at 22 a potential proportional to pulse frequency and speed. A number of Schmitt trigger circuits 23, 24, 25 are connected to junction 22 to energize relays and lamps at pre-set speeds. The magnet 4 is also covered by a cup-shaped aluminium member 2 restrained by a spiral spring, whereby its angular displacement due to eddy currents in the disc is proportional to the angular speed.
Patent GB-409668-A (GB)
Title: Improvements in or relating to spools or reels used for holding cable such as electric cable or flex
IPC: B65H75/14
Filed: 1932-11-01
Abstract: 409,668. Bobbins. CHAMBERS, F. W., Eatonian Works, Toton, Long Eaton, Derbyshire. Nov. 1, 1932, No. 30737. [Class 120 (iii).]' A bobbin or reel, suitable for electric flex, of the type comprising a cylindrical hub 10 and two flanges 14 secured thereto by outwardly turned lips 15 on the hub end, which lips lie against the outer faces of the flanges, is provided in addition with tabs or lugs 11 integral with the hub and secured to the flanges, and a distance sleeve 13 encircling the hub between the flanges. The tabs or lugs 11 are secured to the flanges by bifurcated or other rivets 16, or by staples. The hub 10 may have circumferential corrugations 17 formed therein for stiffening. The lip 15 is preferably continuous as shown, and is formed by spreading the ends of the hub with a reamer or mandrel, and finally pressing them flat against the outer faces of the flanges. The flanges 14 may be of plywood, and the distance sleeve 13 of cardboard.
Patent GB-303966-A (GB)
Title: Improvements relating to wet gas meters
IPC: G01F3/30
Filed: 1927-11-16
Abstract: 303,966. Parkinson & Cowan (Gas Meters), Ltd., and Thorp, F. Nov. 16, 1927. Gas meters.-In a wet gas meter of the type in which the sealing tube is under the gas outlet pressure and the waste-water chamber is under the gas inlet pressure, a float-operated valve a in the waste-water chamber d closes to cut off communication between the waste-water chamber and the sealing tube f when the water in the wastewater chamber falls below a predetermined level. The valve a shown in Fig. 1 may be replaced by a hollow ball. The meter may be provided with means for closing the gas inlet valve when the water is above or below predetermined levels.