baber/WOPTO huggingface dataset:
Patent GB-784045-A (GB)
Title: Oil circuit breaker with two extinguishing chambers
IPC: H01H33/92
Filed: 1956-03-13
Abstract: 784,045. Oil-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 13, 1956 [March 14, 1955], No. 7779/56. Class 38 (5). A circuit-breaker has a conventional extinguishing chamber 1 for heavy current interruption, and for low current interruption has a chamber containing a hollow movable contact 6 carried by a tubular member 7 connected to a piston 8 movable in a cylinder 10. On lowering of the bridge 3 to open the circuit, the piston 8 creates a vacuum in cylinder 10 during the first part of the contact movement, and the cylinder is put in communication with the space 5 through the centre of the movable contact during the last part of the movement. A blast of oil is thereby sucked through the space between the contacts into the cylinder. During reclosing, this oil is vented at 14. The contacts in chamber 1 separate before contacts 6, 17.
Patent GB-1164516-A (GB)
Title: Bonding Elastomers to Metal
Inventor: JAGER FRITZ
IPC: C09J115/02
Filed: 1967-02-17
Abstract: 1,164,516. Laminating metal to rubber. METALLGESELLSCHAFT A.G. 17 Feb., 1967 [18 Feb., 1966], No. 7782/67. Heading B5N. [Also in Division C3] A rubber-to-metal adhesive suitable for making laminates consists of an organic solvent solution of a halogenated polymer and a carboxylated acrylonitrile rubber, the carboxylated rubber forming 2-25% of the polymer solids. The exemplified adhesive is based on chlorinated rubber and a terpolymer of butadiene, acrylonitrile and fumaric acid. Materials bonded include stainless steel strips, aluminium alloy sheet, iron and brass. The metal may be pretreated with a protein-latex cover cement.
Patent GB-565612-A (GB)
Title: Improvements in guards for drilling or like machines
IPC: F16P1/02
Filed: 1943-05-17
Abstract: 565,612. Machinery guards. GRIFFITHS, G. May 17, 1943, No. 7792. [Class 80 (iv)] Consists in a guard for drilling and like machines having a vertically movable and rotating cutter. The guard comprises a perforated sheetmetal member 1 bent into substantially semicircular form, the side edges having U-shaped guide grooves formed by riveting two strips of metal 2, 3 thereto. These guide grooves accommodate a second similarly shaped member 5 which therefore telescopes over the member 1 and can be secured in adjusted position by a thumb nut 7. The extension member may comprise two curved pieces of perforated metal covered by transparent material. The upper member 1 is hinged at 10 to a bracket 11 forming part of the spindle housing. When in position, the guard abuts an extension 14 on the bracket, but may be swung upwardly, as shown in dotted lines, away from the drill or cutter. In both positions it is held by a spring 13.
Patent GB-1002846-A (GB)
Title: Internal combustion engine cylinder head
Inventor: WILLIAMSON ALEXANDER
IPC: F02F1/38
Filed: 1963-02-27
Abstract: 1,002,846. Cylinder heads. VAUXHALL MOTORS Ltd. Feb. 24, 1964 [Feb. 27, 1963], No. 7797/63. Heading FIB. A cylinder head is divided into two parts 1, 2, such that the exhaust passages 5 are formed wholly in the part 2 whilst the inlet passages 6 are formed partly in the part 2 and partly in the part 1 in which is also formed an inlet manifold 15 running the length of the head. The head portions 1, 2, are formed by die casting, the manifold 15 and a coolant passage 18 tapering inwardly from both ends towards the middle of the head so that they can be formed by using tapered metal cores. Similarly the portions 6, 14, Fig. 2, and 5, 10, Fig. 3, of the exhaust passage taper towards their junction and the remaining coolant spares 17, 22, and push rod space 20 are tapered to permit the use of tapered metal cores in the casting.
Patent GB-550112-A (GB)
Title: Improvements relating to hose and like clips
IPC: F16L33/04
Filed: 1941-06-20
Abstract: 550,112. Band clips. BAUER, W. S. June 20, 1941, No. 7821. [Class 44] A wire clip, for securing hose-pipes comprises a length of wire bent to U-form, the bight 3 being outwardly curved to provide bearing for a swivelling member shown as a semi-cylindrical washer 4 placed below the head of the tightening screw 9. The limbs 5 embrace the pipe 1 and are formed with coils 6 providing bearings for a pivoted nut 7 co-operating with the screw. The free ends 8 extend to cover the gap between the parts 3, 6 and in use washer 4 rides on the parts 5, 8 as seen in Fig. 2. The shank of the screw may bear against the parts 8 as in Fig. 1. Alternatively, member 4 may be threaded to act as the nut, the head of the screw bearing against member 7 which is formed with a plain hole. In both cases member 4 is of such length or is so formed as to prevent lateral separation of the wire limbs. Specifications 104,484, 131,177, 271,609, [all in Class 44], and 448,348 are referred to.
Patent GB-453283-A (GB)
Title: A matrix for use in filling incisor teeth
IPC: A61C5/85
Filed: 1935-03-13
Abstract: 453,283. Dental matrices, EDEY, G. R., 83A, High Street, Bromley, Kent. March 13, 1935, No. 7822. [Class 81 (ii)] A matrix for use in stopping incisor teeth consists of a band 1 of flexible metal shaped so that it may be folded round a tooth so as substantially to totally enclose it, and a clip for holding the matrix in the desired form. The strip 1 has a straight incisal edge with a central rectangular projection 2 to be folded over the incisal edge of the tooth. The cervical edge is shaped to conform to the gum line when folded round the tooth. When in position the ends 1<1>, 1<11>, are brought together, a U-shaped clip 3, Fig. 2, is applied, and the ends folded round the clip. In use the matrix is applied and burnished to the shape of the tooth, it is then removed, the tooth cavity filled, and the matrix re-applied until the filling has set.
Patent GB-315348-A (GB)
Title: Snap fastener sockets
IPC: A47G27/04
Filed: 1929-03-11
Abstract: 315,348. Reiter, D. I. July 12, 1928, [Convention date]. Presa-button fasteners.-The socket member, formed from a single blank, is shaped to provide a central cupped portion 21 surrounded by a channel 22 the outer wall of which has spaced prongs 23 by which the socket can be secured to fabric &c., and may have intermediate fingers 25 bent down as shown to reinforce the channel portion. The cup 21 has a substantially flat top serving as a thumb piece, fabric support, and sounding element to give a definite click as the stud is pressed home. The socket is rendered resilient to enable it to snap on to the stud member by a cut 27 extending from a central perforation 26 to the periphery. The cut may be straight, as shown, or somewhat zig-zag. In a modification two diametrically opposite cuts are used, extending only through the channel portion. The socket may be used with any suitable stud but as described is particularly for use in securing rugs &c., by co-operation with the stud 28 shown in Fig. 4 secured to the floor &c. by a screw 29.
Patent GB-1390381-A (GB)
Title: Continuous hydrogenation of fatty materials
IPC: C11C3/12
Filed: 1972-02-21
Abstract: 1390381 Hydrogenating fatty oils BLAWKNOX CHEMICAL PLANTS Inc 21 Feb 1972 [24 Feb 1971 10 June 1971] 7946/72 Heading C5C In a process for the continuous hydrogenation of fatty oil in the presence of a catalyst, the hydrogen is metered into the reaction zone at spaced intervals along the reaction zone without external mechanical agitation, in such a manner that there is no back-mixing, and the Baker flow parameter is greater than 420. The Baker flow parameter is defined by the formula A P  = cross-sectional area of pipe, P G  = density of gas, P L  = density of liquid, # = surface tension of liquid, and Á L  = viscosity of liquid. Preferably, the total quantity of hydrogen supplied is no more than 10% greater than the total quantity consumed. This gives good selectivity, with a large degree of hydrogenation of polyunsaturates, but little of oleic acid radicals. In the examples a soya-bean oil is hydrogenated over a catalyst of nickel supported on kieselguhr, but reference is also made to rapeseed oil, mustard oil, cotton-seed oil, peanut oil, rubber-seed oil, corn oil, wheat-germ oil, linseed oil, safflower oil, sunflower oil, lard and tallow, and as catalysts copper, platinum, palladium and cobalt, unsupported or supported on charcoal, silica, kieselghur or silica gel, and the homogeneous catalysts of U.S.A. Specification 3,542,821.
Patent GB-703427-A (GB)
Title: Improvements in the manufacture of steel
IPC: C21C5/34
Filed: 1951-04-06
Abstract: In a method of manufacturing steel in a converter, the last part at least of the blowing is effected by means of a mixture of oxygen and steam superheated to 250 DEG C., the proportion of steam in the mixture being 30-40 per cent. by weight.  The initial blowing may be carried out using air which may or may not be enriched with oxygen. Figures are given for equivalent quantities of scrap, lime, ores and additional steam which may be used.  Specification 700,250 is referred to.
Patent GB-725717-A (GB)
Title: Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters
Inventor: GERMAIN LEO MARCEL
IPC: C08F8/12
Filed: 1953-03-25
Abstract: The process of the parent Specification for the alkaline alcoholysis of a vinyl ester polymer of a saturated lower aliphatic monocarboxylic acid is modified by using in the first step of the process a solution of the ester of viscosity above 80 poises but not greater than 800 poises at the temperature of the reaction.
Patent GB-609553-A (GB)
Title: Improvements in and relating to dishwashing apparatus
IPC: A47L15/06
Filed: 1946-03-15
Abstract: 609,553. Rotary sprayers. BRITISH THOMSON-HOUSTON CO., Ltd. March 15, 1946, No. 8162. Convention date, March 15, 1945. [Class 69 (iii)] [Also in Group XXIII] A rotary spray-producing device comprises a liquid-circulating impeller having a driving motor 19 situated within a bell-like hub 17 of the impeller. The interior of the motor is insulated from the liquid by fluid-sealing washers 25b interposed between upper and lower heads 24, 25 and the wall 23 of a casing enclosing the stator 20 and rotor 21 of the motor, and by a sealing packing 31 around the rotor shaft 22. The heads 24, 25 contain oil-supplying packing glands 27 and 29. The motor is secured to the bottom of the vat by a nut 33 on a projection 32 on the head 25, a gasket 35 being interposed. Attached to the upper end of the shaft 22 is a centrifugal slinger plate 39 which eliminates spray from the shaft where it projects through the motor casing. In a modification, the side wall and the upper head of the motor casing are made in one piece and project downwardly through the bottom of the container, the opening being sealed with a U- sectioned circular rubber gasket.
Patent GB-1186663-A (GB)
Title: A Pump for Cryogenic Liquids
IPC: F04B17/04
Filed: 1968-02-20
Abstract: 1,186,663. Electric motors. -GENERAL ELECTRIC CO. 20 Feb., 1968 [24 March, 1967], No. 8185/68. Heading H2A. [Also in Division F1] A pump for cryogenic liquids, e.g. liquid helium, has a piston 1 of superconductive material, e.g. niobium, suspended out of contact with the working chamber walls by electromagnetic flux generated by coils 6 to 9, and reciprocated by passing A.C. current through coils 18, 19, which act on a piston flange 4 of superconductive material. Flux loss in coils 18, 19 is avoided by the provision of a superconducting ring 20 having a radial slot. A weak D.C. current is maintained in coils 18, 19 to prevent contact by flange 4 at the end of each stroke. Holes 5 in flange 4 permit passsage of leakage liquid in space 17 during reciprocation.
Patent GB-215515-A (GB)
Title: Improved flat or pressing iron
IPC: D06F75/18
Filed: 1923-03-22
Abstract: 215,515. Walker, O. March 22, 1923. Addition to 191,932. Electric hand-irons. - The iron described in the parent Specification is provided with a pipe 8 controlled by a needle valve 5 and connecting a water container 6, formed in the handle, to a generating chamber 27 beneath the heating resistance 2. The valve may have a tongue 31, Fig. 3, that prevents clogging of the pipe. In front of the orifices is a ridge 28 that causes steam to pass over a highly heated surface of the resistance.
Patent GB-619867-A (GB)
Title: Improvements in dust or the like covers
IPC: A23G7/00
Filed: 1946-03-16
Abstract: 619,867. Stuffing-box substitutes. ROSE, A, G., and ROSE BROS. (GAINSBOROUGH). Ltd. March 16, 1946, No. 8242. [Class 122 (v)] [Also in Group XXXIV] A bearing or an aperture through which a member reciprocates is protected against the entry of foreign matter by providing on the housing which contains the bearing or aperture, a tubular member surrounding, but spaced from, the reciprocating member, this tubular member being embraced with the necessary clearance by a tubular member secured as by a collar to the reciprocating member. The invention is shown applied to a toffee wrapping machine in which a reciprocating plunger 16 ejects pieces of toffee from a feed wheel 13 on to a wrapping band 17, which is later cut off by knives 19 and the toffee and cut-off band transferred to a pocket in a further wheel 14 for completion of the wrapping operation. The plunger is guided by rollers 21 and actuated by a cam-actuated rocking lever 23, all of which are enclosed in an oil bath. Entry of toffee chips into the oil bath is prevented by providing on the oil-bath cover 29, around the apertures through which the plunger 16 projects, an upstanding tubular member 31 embraced, with clearance, by a tubular member 33 of rubber or other yieldable material secured to a collar 36 on the plunger 16. The outer tubular member 33, being of rubber, can yield if a toffee should fall on to the cover 29 in the path of movement of such member.
Patent GB-458062-A (GB)
Title: Improvements in electrically heated glass tank furnaces
IPC: C03B5/033
Filed: 1936-03-19
Abstract: 458,062. Electric furnaces. BIVORT, H. J., 2, Place Constantin Meunier, Brussels. March 19, 1936, No. 8250. Convention date, March 22, 1935. [Class 39 (iii)] A glass furnace comprises a fixed tank with a cover provided with transverse cavities 5 containing resistance heating elements 4 which are thus protected from gaseous currents passing axially of the furnace along the roof. The resistances are arranged longitudinally of the furnace and rest on ledges 6a surmounted by walls 7 and covers 8.
Patent GB-900276-A (GB)
Title: Improvements in or relating to impulse correction in automatic telephone and like systems
Inventor: GALVIN JOHN LESLIE
IPC: H04Q1/36
Filed: 1960-03-09
Abstract: 900,276. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Feb. 17, 1961 [March 9, 1960], No. 8272/60. Class 40 (4). An impulse correcting arrangement comprises 3 relays E, A, AA which jointly control the outgoing loop in such a way that if the impulsing rate is less than the normal 10 per second, the breaks of the repeated impulses are fixed at the correct value of 66<SP>2</SP>/ 3  ms., whereas if the impulse rate is faster than the normal rate, the makes are fixed at the correct value of 33<SP>1</SP>/ 3  ms. The impulse repeater shown terminates a 4-wire carrier circuit over which VF impulses are received. Relays E, A respond momentarily to a seizure signal and connect up B, BG, BA, establishing the forward loop. Relays E, A respond subsequently to each impulse, and the relapse of E connects up AA. Dialling relay CD pulls up at the first impulse. Relays A, AA are controlled by resistors RV1, RV2 and rectifiers MR1, MR2 to have release lags of 33<SP>1</SP>/ 3  ms. and 66<SP>2</SP>/ 3  ms, respectively. If the impulsing rate is normal or faster than normal, the break of each repeated impulse is started by the release of A, and terminated, except for the last break, by the next release of E. Each make is defined at 33<SP>1</SP>/ 3  ms. by the release lag of A, whereas the last break is defined at 66<SP>2</SP>/ 3  ms. by the release lag of AA which holds during the train. If the impulsing rate is slower than normal, AA falls back at each impulse and terminates each break after 66<SP>2</SP>/ 3  ms. independently of the next release of E. For D.C. loopimpulsing, relay E would be controlled by a break contact of the impulse relay.
Patent GB-863118-A (GB)
Title: Electrically heated cooking utensils
IPC: A47J37/10
Filed: 1957-03-13
Abstract: 863,118. Thermal switches. EVANS, O. (S. W. Farber Inc.). March 13, 1957, No. 8350/57. Class 38 (5). [Also in Groups XI and XXXVI] A switch mechanism 42 for an electric frying pan comprises a stainless steel tube 60 having within it and attached to its projecting end an elongated metal strip 70 having a substantially lower coefficient of thermal expansion than the tube 60. The tube 60 enters a metal sleeve 32 bonded to the bottom of the pan. The other end of the strip 70 is secured to a flexible lever 64 welded at 68 to the tube 60. On rise in temperature of the heater, the strip 70 raises the free end of the lever 64, and a boss 66 thereon raises an arm 74 carrying a contact 78, thereby breaking the supply. The contacts 78, 80 of the switch are carried on flexible arms 74, 76 mounted on a support 72 secured to the tube 60. The member 72 is threaded to receive a pin 83 of an adjusting knob to regulate the operating temperature of the switch, the lower end of the pin bearing on the strip 76 carrying contact 80. The knob 84 carries temperature indicia.
Patent GB-589943-A (GB)
Title: Tail-stock lathes
IPC: B23B43/00
Filed: 1945-04-05
Abstract: 589,943. Combined turning and drilling machines. WRIGHT, S. B. April 5, 1945, No. 8401. [Class 83 (iii)] Lathe centres.-A lathe tailstock is provided with a rotatably supported hollow centre 12 through which a drill carried on an axially slidable and rotatable shaft 24, coaxial with the work, is adapted to operate on the work during an external turning operation, openings being provided to carry away the cuttings arising from the drilling operation. The live centre 12 is carried at the end of a sleeve 14, gapped at 18 to facilitate swarf removal, which is in turn rotatably carried by means of roller bearings 16, 17 in the tailstock barrel 19. The latter is fed axially to bring the centre up to the workpiece 11 by means of a rack and pinion 20, 21 respectively. The spindle 24 carrying the drill 25 is slidably keyed at 23 to the sleeve 14, so that this rotates at the same speed as the drill to facilitate swarf clearance, and the spindle is rotatably carried at its end remote from the drill in a sleeve 31 fed by rack and pinion gearing 41, 42 respectively. The spindle may be driven from the lathe driving means or may be independently driven by an electric or other motor 34; torque reaction being taken by a rod 39. The spindle may be'hollow for supplying coolant to the drill. In a modified construction, the rotatable sleeve 14 is omitted and the centre is carried on an extension of the axially adjustable tailstock barrel.
Patent GB-665310-A (GB)
Title: Improvements in or relating to hydraulic pressure transformers
IPC: F15B3/00
Filed: 1949-03-28
Abstract: 665,310. Intensifiers. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. March 28, 1949 [April 2, 1948], No. 8411/49. Class 69 (ii) [Also in Group XXVIII] In a hydraulic pressure transformer comprising a plurality of differential pistons, each having a part 22 reciprocating in a low-pressure cylinder 21, and its other part 9, in a high-pressure cylinder 7, control means, such as valves 12, 13 for placing the low-pressure cylinders into intermittent communication with a lowpressure supply 1, and auxiliary control means such as check valves 5, 23, for intermittently placing the high-pressure cylinders alternately into communication with the low-pressure supply 1 and a highpressure duct 24 respectively, the control means is arranged so as to automatically govern the movement of the differential pistons in a manner whereby liquid is always delivered from at least one of the high-pressure cylinders to the high-pressure duct 24, the operation of the control means being in turn hydraulically controlled by the movements of the differential pistons. The incoming liquid from the low-pressure supply is in intermittent communication with the high-pressure cylinders 7 through conduits 2 and 3 and valves 5, whilst low-pressure liquid also passes across valves 12 and 13 into the cylinder 21 and moves upwardly the piston 22 thereby increasing the pressure on the liquid in cylinder 7 until a state of _equilibrium is reached whereupon the high-pressure liquid unseats valve 23 and enters the outlet pipe 24. When piston 22 uncovers the entry to a conduit 26, liquid from' cylinder 21 moves the valve 12 leftwards so that liquid from conduit 1 'traverses channel 18 and moves valve 13 rightwards ; cylinder 21 is therefore placed in communication with exhaust 17 and causes a downstroke of the second piston and admission of liquid from the low-pressure supply into the corresponding cylinder so effecting an upstroke of the second piston and the entry of high-pressure liquid into pipe 24 through its associated check valve. The cycle recommences when the second piston uncovers the entry to a conduit 29 and so moves the valve 12 back to its original position; One of the two cylinders is always arranged to be under pressure in order to avoid momentary pressure drops in duct 24.
Patent GB-903170-A (GB)
Title: Magnetic snap action electric switches
IPC: H01H5/02
Filed: 1960-03-10
Abstract: 903,170. Contact members for switches. OAK MANUFACTURING CO. March 10, 1960 [March 10, 1959], No. 8475/60. Class 38 (5). A snap-action push-button switch includes a resilient change-over contact reed biased by a permanent magnet which acts as a contact. As shown, the reed 22 is secured in a support 10 and has a ferromagnetic tip 21 between two permanent magnet contacts 16, 17 or arms 12, 13 in the support 10. The push-button 28 slides in a hole in the support 10 which has an anvil portion 35 to limit downward movement of the reed. In either contact position operation of the push-button will cause contact change-over.
Patent GB-1275877-A (GB)
Title: Metallised formazane dyes and their use in dyeing polyamide fibres
IPC: C09B50/00
Filed: 1970-02-23
Abstract: 1275877 Metallized formazane dyes TOMS RIVER CHEMICAL CORP 23 Feb 1970 [24 Feb 1969] 8547/70 Heading C4P The invention comprises metallized formazane dyes of formula wherein A and B may be substituted by one or more halogen atoms, or alkyl alkoxy, nitro, alkylsulphonyl, sulphamoyl or acylamino groups and Me is Cu or Ni. The dyes are prepared by coupling a diazotized o-aminophenol or -anisidine with methyl cyanoacetate or cyanoacetamide, hydrolysing, coupling with the diazonium compound not used in the first stage to obtain the C- cyano - N - 2 - methoxyphenyl - N<SP>1</SP> - 2<SP>1</SP>- hydroxyphenyl formazane and treating this with a copper or nickel salt. The dyes are used to colour synthetic polyamide fibres in blue shades.