baber/WOPTO huggingface dataset:
Patent GB-223947-A (GB)
Title: Improvements in or relating to the manufacture of drills and similar tools
IPC: B23P15/32
Filed: 1923-06-02
Abstract: 223,947. Vickers, Ltd., and Smith, R. L. June 2, 1923. Drills, boring and like tools are made in pairs by hardening and tempering a bar and severing it at the middle, the severed ends being subsequently pointed and the usual cutting-edges formed. The shanks may be integral with the bar or may be electrically welded thereto. The drills may be made by twisting a profiled bar of double-drill length, Battening the ends and electrically welding thereto the shanks, after which the bar is annealed, straightened and turned. The flutes are then milled and the bar hardened and tempered. The bar is then severed by an emery-wheel &c. and the drill pointed and ground to finished size. The heating for tempering &c. may be effected by a low-voltage electric current and may be carried out in a combined electric welding and heating machine.
Patent GB-1536488-A (GB)
Title: Stabilization of high temperature plastics
IPC: C08K3/00
Filed: 1976-04-09
Abstract: 1536488 Stabilizing aromatic polymers EXXON RESEARCH & ENG CO 9 April 1976 14659/76 Heading C3R Polymers containing methylene groups attached to aromatic rings are stabilized against oxidation at high temperatures by incorporating in them 0À0005 to 2À0% by weight of copper, nickel or cobalt salts of inorganic or organic acids, or copper chelates. The polymers may contain heterocyclic rings. In examples the polymer used has repeating units of formula and the stabilizers used are cuprous chloride, cupric chloride, cuprous bromide, cupric acetate, cupric acetylacetonate, cobaltous chloride, nickelous chloride, cupric nitrate, cupric benzoate, cupric benzoyl acetonate, copper salicylaldehyde chelate, cupric ethylacetoacetate and copper - 8 - quinolinolate; some compositions also contain octabromobiphenyl as a flame retardant.
Patent GB-1146285-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
Inventor: GADD RONALD OWEN CASWELL
IPC: A43D25/08
Filed: 1965-04-07
Abstract: 1,146,285. Boots &c. BRITISH UNITED SHOE MACHINERY CO. 6 April, 1966 [7 April, 1965], No. 14672/65. Heading A3B. A machine for lasting heel seat portions of shoes comprises a jack (1), Fig. 1 not shown, including a last-supporting post (14) and an adjustable last pin (2) as described in Specification 1,087,224, a pair of wipers 20 advanced and moved towards each other by a slide 24, Fig. 3, to wipe adhesive-covered edges of a shoe upper supported on the last over a similarly supported insole (neither shown), a hold down member 18 which contacts the insole prior to the wiping action and a heel band 48 which is clamped around the heel portion of the upper by a system of compensating levers. The machine is pneumatically operated by means of a treadle-operated valve. In use, initial depression of the treadle actuates a piston and cylinder (8) to move the jack rearwardly until an abutment (80) on the jack engages a microswitch (82) which operates a valve reducing air pressure to the piston and cylinder (8) and supplying air at this lower pressure to a diaphragm motor (M) to raise the jack (1) as it completes its rearward movement to bring the heel against the rearward portion of the heel band with the heel seat portion of the insole lightly pressing against the hold down member 18. The member 18 is vertically adjustable by means of a screw arrangement 34 through which it is mounted on an arm 36 of a three armed lever pivoted on the machine at (38). Each of the other arms 40, 42 of the lever carries a cam roll 44 which engages a cam surface 46 on the slide 24, so that whilst the slide is in its rearward position the hold down member remains in its adjusted position contacting the insole but when the machine operator depresses the treadle further and actuates first the piston and cylinder (8) and a piston and cylinder 62 for closing the heel band 48 and clamping it around the heel portion of the upper and subsequently a piston and cylinder (not shown) for moving the wiper actuating slide (24) forward at a certain point in its forward movement, the rolls ride down off the cam surface and thus raise the member 18 out of the path of the wipers 20. Supported on the upper face of hinger wiper carrier plates 22 are two pairs of co-axial rolls 26, the lower rolls engaging in slots 28 in a cam plate 32 and the upper rolls in the slots 30 in the slide 24. As the slide 24 is advanced movement of the rolls along slots 28 causes the carrier plates 22 to advance and swing inwardly to wiping position.
Patent GB-457201-A (GB)
Title: Improvements in and relating to apparatus for thermal processes
IPC: B29C35/02
Filed: 1935-05-20
Abstract: 457,201. Heating-apparatus; refrigerators. FARRER, J. 0., 27, Chancery Lane, London, and KOCH, E. A. J., 64, Victoria Street, Westminster. May 20, 1935, No. 14717. [Classes 29 and 64 (ii)] [See also Group V] Apparatus for heat treating or refrigerating purposes comprises a container for the material to be treated, heating or cooling elements located about the container wall, a fan for circulating air or other gas past the heaters &c. and through the container by way of apertures in the wall thereof, and means constraining the air &c., after leaving the container, to pass over the heating elements to the end thereof remote from the fan and back to the fan. Heating &c. elements 5, Figs. 1 and 2, consisting of pipes through which is circulated hot water or a refrigerant, are housed in the space between a container 1 and a jacket 3. The space is divided into two compartments 18 19 by a rib 17 and a conduit 15. A fan 8 forces air through a passage 16, around the compartment 19, through a slot 20 or series of slots into and across the container 1, through an aperture 21, around and along the compartment 18 to the open end 15a of the conduit 15, and along conduit 15 and passage 11 to the fan.
Patent GB-1390375-A (GB)
Title: Track junction switch for transportation apparatus
IPC: B61L23/00
Filed: 1972-04-10
Abstract: 1390375 Track junction switches MAATSCHAPPIJ VOOR INDUSTRIELE RESEARCH EN ONTWIKKELING NV 10 April 1972 [15 April 1971] 14774/74 Divided out of 1390373 Heading B7L A track junction switch comprises a switch member 88, 89, 90, Fig. 1, which carries one or more (two as shown) connecting pieces 88 and 89 of two-rail track on faces disposed in different planes about a rotary axis 91 for rotation between positions in which the connecting pieces interconnect an inlet track part 85 and a respective outlet track part 86 and 87. Whereas in Fig. 1, the rotary axis 91 extends equidistantly between the planes of the two track pieces 88 and 89, the rotary axis may similarly be surrounded by three connecting track pieces staggered at 120 degree intervals and equidistantly spaced from the axis, Fig. 6 (not shown). As shown in Fig. 4, where there is a straight connecting track piece 152 and a curved connecting track piece 151 on opposed sides of a carrier plate 150 which is pivotable about its longitudinal axis at 153, 154, the switch may be locked in a selected position by swinging fingers 159a (and 159b, 161a, 161b) into engagement with the plate 150.
Patent GB-1356291-A (GB)
Title: Manufacture of elastomers from a trimellitoyl-functional polymer  and an epoxy compound
IPC: C08C19/34
Filed: 1971-05-13
Abstract: 1356291 Elastomers BRIDGESTONE TIRE CO Ltd 13 May 1971 [15 May 1970] 14826/71 Headings C3B and C3P Elastomeric polymers are prepared by mixing (I) at least one trimellitoyl group containing polymer of formula in which R is a residue, after removal of OH groups, of a hydroxyl function polymer, M.W. > 700 and containing 2-100% by wt. of olefinically unsaturated double bond units, n is at least 2, with (II) a compound containing at least two epoxy groups, and subjecting the mixture to heating. I may be prepared by ozonizing a diene polymer, especially a homo- or co-polymer of butadiene, reducing the resultant ozonide and then reacting the hydroxyl group containing polymer with either trimellitic anhydride and halides or esters thereof. Reduction may take place in the presence of LiH, AlH 3 , LiAlH 4  or sodium borohydride. Reaction with trimellitic anhydride is preferably carried out in the presence of a tertiary amine, e.g. pyridine, as acid acceptor. In examples II are diglycidyl ethers of bisphenol A and a diglycidyl ether of an aliphatic glycol.
Patent GB-148591-A (GB)
IPC: B64D10/00
Abstract: 148,591. Kent, W. G., and Hunt, N. H. Feb. 12, 1919. Measuring - apparatus. -Meters for measuring the supply of oxygen to airmen's helmets and for other purposes comprise a plate 1, Fig. 4, carried by a pivoted spring-controlled spindle and acted on by fluid from a jet 16, a shield 26 being interposed between the plate and jet. The position of the shield is varied by pressure-operated means such as a vacuum box 25 or Bourdon tube, or by a density-measuring device comprising a driven fan.
Patent GB-569441-A (GB)
Title: Improvements in or relating to combustion plant
IPC: F25B11/00
Filed: 1943-09-10
Abstract: 569,441. Turbine plant. MASCHINENFABRIK OERLIKON. Sept. 10, 1943, No. 14913. Convention date, Sept. 10, 1942. [Class 110 (iii)] A steam turbine circuit is combined with an air or gas turbine circuit, and a "heat pump " which takes a medium such as air at atmospheric temperature, compresses it to raise its temperature and passes the heated air through a heat exchanger to supply heat for an outside consumer such as a drying or heating plant. The waste heats from the turbine circuits are also used by the outside consumer. The air or gas for the turbine circuit is heated by the combustion chamber for the steam generator. In the plant shown in Fig. 2 fuel is burnt on a grate C heating a boiler D, superheater E, an air pre-heater L2 and economiser B in the steam system, before passing on to an outside consumer or a chimney. Steam from the boiler D passes through the superheater E, turbine F (driving a generator G) to an outside consumer H and is returned via the economiser B to the boiler. Air passes from a compressor 9 through a heat exchanger L, to L2 and is led to a turbine M (drivmg a generator N) and passes through L1 to the grate C. A second compressor J, driven by an electric motor, also suplies the grate. A by-pass may lead some air to the furnace flue. The heat pump is represented by an evaporator P, vapour compressor Q, condenser R and an expansion engine S, which may be omitted. The engine, which is shown as a turbine S, may have a pressure relief valve T. Heat from an outside source is supplied to P, increased by the compressor Q and given up in R to a medium such as air or water flowing from f to g which gives up its heat to the consumer H. The turbine M may be divided into separate turbines each driving the units Q, K, N. The loading of the air turbine plant could then be controlled by varying the speed of the compressor. Fig. 3 shows another arrangement in which the feed water for the boiler passes through economiser B1, B2, B,. In the air circuit the compressor K is cooled, supplying heat H4 for the outside consumer H. Exhaust air from the turbine M is divided, part passing as combustion air for the grate C, ar.d part to the air pre-heater L1, economiser B1 to the consumer H. Some exhaust air from M after passing through B, may be led to L2, then passing on to L1, B2 and the chimney at 99. Gases from the grate C may bypass the boiler D passing to a mixer 80, and L2 may be tapped at 81 leading to the flue 652 and the upper part of L, at 82. Instead of a steam "heat pump" circuit, an air gas circuit may be used. In this case Q would be a rotary compressor, R and P heat exchangers, and S an air or gas turbine. P may be omitted if air is used, and the compressors K and Q combined. The turbines M and S could also be combined. Liquid or gaseous fuel could be used for the furnace, or an internal-combustion chamber. The " heat pump circuit may be disconnected by shutting off the compressor Q. The air supply to K may be throttled.
Patent GB-969771-A (GB)
Title: Improvements in or relating to semi-permanent casting moulds
IPC: B22C23/02
Filed: 1961-04-25
Abstract: 969,771. Coating and lining moulds and cores. REGIE NATIONALE DES USINES RENAULT. April 25, 1961 [May 17, 1960], No. 14977/61. Heading B3F. A semi-permanent mould comprises a mould shell coated by blowing a protective layer 2 into the gap between the hot mould shell 1 and a hot pattern plate 5. The mould shell rests on a water-cooled nozzle 3 and the protective layer which may be sand-resin, sand-silicate binder is blown through orifices 4 in the shell. In a modification the sand is blown downwardly.
Patent GB-1524626-A (GB)
Title: Production of liquid sulphur trioxide
IPC: C01B17/765
Filed: 1976-04-13
Abstract: 1524626 Sulphur trioxide STAUFFER CHEMICAL CO 13 April 1976 [24 April 1975] 15016/76 Heading C1A Liquid sulphur trioxide is produced at elevated pressure by: (a) burning sulphur in the presence of elemental oxygen in a single stage at an outlet temperature of between 1000 and 2700‹ F.; (b) catalytically converting at least some of the resulting sulphur dioxide to sulphur trioxide in at least two stages; (c) condensing and recovering between 20% and 70% of the sulphur trioxide; and (d) recycling substantially all of the uncondensed gases from step (c) to step (a).
Patent GB-1459322-A (GB)
Title: Calender for the production of rubber webs or plastics material  foils
IPC: B29C43/24
Filed: 1974-04-04
Abstract: 1459322 Calender HERMANN BERSTORFF MASCHINENBAU GmbH 4 April 1974 [7 April 1973] 15043/74 Heading B5A A five-roll calender, for the production of plastics material foils or rubber webs, has the axes of the rolls lying in the same horizontal plane with a first roll 2 and a last roll 6 each of relatively large diameter with a smaller diameter roll 3, 4 adjacent thereto, and a centre roll 4 of the same diameter as the rolls 2, 6.
Patent GB-540520-A (GB)
Title: Right and left hand helical guide for machine spindles
IPC: B23F5/16
Filed: 1940-10-09
Abstract: 540,520. Gear-cutting. FELLOWS GEAR SHAPER CO. Oct. 9, 1940, No. 15076. Convention date, Oct 2, 1939. [Class 83 (iii)] A machine, such as a gear generator of the reciprocating pinion cutter type, wherein a cutter or work spindle has a combined reciprocating and rotary movement, has spindle guiding means comprising a number of helical elements spaced around the spindle axis and co-operating relatively stationary means which may be selectively engaged with either of the helical elements. Two helical elements of opposite hand may be provided so that helical gears of either hand or herring-bone gears may be cut. The cutter saddle 11 carries the spindle 12 of the pinion cutter 13 while the work 15 is mounted on a spindle 14. Generating rotary movement is imparted to the cutter spindle by worm gearing 16. The spindle carries a sleeve 18 having two opposed helical guide grooves 29, 30 of opposite hand, coacting respectively with guide shoes 19, 20 formed with ribs 31 engageable with the grooves and adapted to slide radially in a sleeve 23 which is secured to the hub 24 of the generating gear 16. The shoes may be radially adjusted by their respective screws 34, 40 so that either of them engages the co-operating groove to turn the spindle in either direction on its cutting stroke. In addition to cutting gears right- or left-hand helical slots may be formed in clutch elements. The invention may be applied to machines wherein the parts 23, 24 have no rotary generating movement. The helical grooves may be of the same hand but different helix angles and may in some cases cross each other. More than two sets of grooves and shoes may be employed.
Patent GB-977963-A (GB)
Title: Derivatives of carboxylic acids containing the pentafluorophenyl group
Inventor: BUXTON MICHAEL WILLIAM
IPC: C07C57/76
Filed: 1960-05-12
Abstract: The invention comprises compounds of the general formula C6F5(CH2)nCOX wherein C6F5 is pentafluorophenyl, n is 0, 1 or 2, X is Cl, -OR or -NR12, R is C1- 3 alkyl and R1 is H or C1- 3 alkyl. Specifically claimed are pentafluoro-phenylacetamide, -benzamide, -phenyl-b -propionamide and their N:N-diethyl derivatives; ethyl pentafluorophenyl acetate; and pentafluorobenzoyl, -phenylacetyl and -phenyl-b -propionyl chlorides.  The following methods are given for the preparation of the compounds of the invention:-(1) esters-reaction of C6F5 (CH2)n CO2H with excess ROH, e.g. n=1 or 2, R=Et and a catalyst such as fluosulphonic acid is used; (2) acid chlorides-reaction of C6F5(CH2)n CO2H with PCl5; (3) amides-(a) reaction of C6F5(CH2)nCOCl with HNR12, or (b) when n=1 and R1=H, partial acid hydrolysis of C6F5CH2CN.
Patent GB-904548-A (GB)
Title: Process for treating fillers
IPC: C08K9/06
Filed: 1959-05-04
Abstract: The tendency of a silica or alumina filler to induce structure especially in curable organopolysiloxane compositions, is reduced by injecting 5 - 50 parts of volatile lower alkyl or alkenylpolysiloxane (as defined) having a boiling point less than 250 DEG C. into 100 parts of a bulk mass of filler, and allowing the filler and polysiloxane to remain in intimate contact in a sealed container until the polysiloxane is intimately dispersed through the bulk mass. The filler may be fume, precipitated, or aerogel silica, alkoxy-modified silica, or gamma alumina.  The siloxane may be injected into the filler in bags through one or more small diameter perforated tubes, or through a single spray head on one or more tubes.  The tubes may be slowly withdrawn from the bags, which are resealed and stored for at least 4 days at 25 DEG  - 35 DEG C. to produce a polysiloxane coating on the filler.  Alternatively, the filler may be sprayed with the polysiloxane during manufacture and then sealed in containers.  The polysiloxane has alkyl groups containing 1 or 2 C atoms, and a vapour pressure at 27 DEG C. at least 0,1 mm., and may be chosen from hexamethylcyclotri-, octamethyl cyclotetra-, hexamethyldi-, octamethyltri-, decamethyltetra- and hexaethyltrisiloxanes, methyl hydrogen polysiloxanes of formula (CH3SiOH)p where p is 3 - 5, alkenyl polysiloxanes of formula [(CH2 = CH)CH3SiO]q where q is 3 or 4, and mixtures of methyl polysiloxanes of formula <FORM:0904548/III/1> where r is 0 - 10.  Specification 806,563 is referred to.ALSO:Curable organopolysiloxane compositions contain say 10-200% structure-inducing silica or alumina filler which has been coated with a volatile lower alkyl- or alkenylpolysiloxane (see Group III).  The curable siloxanes should contain 1,98-2,1 organic groups per Si, which groups may be monovalent hydrocarbon, hydrogenated aryl, and phenyl alkyl radicals, e.g. ethyl-, or methylvinyl-, polysiloxanes.  Curing may be effected by heat or high energy electrons, and the composition may include a curing agent, e.g. benzoyl peroxide, bis-(2,4-dichlorobenzoyl)-peroxide, tetiary butyl perbenzoate, say 0,1-8%, a diphenylsilanediol structure additive, and other fillers, e.g. TiO2, lithopone, ZnO, zirconium silicate, iron oxide, diatomaceous earth, sand, or CaCO3. Specification 806,563 is referred to.
Patent GB-862670-A (GB)
Title: Improvements in single string and parallel string wells
IPC: E21B33/047
Filed: 1958-05-12
Abstract: 862,670. Multiple well completions. BUTLER, G. A. May 12, 1958 [Sept. 26, 1957], No. 15193/58. Class 85. A tubing hanger for a multiple completion well comprises a hangar body 60 which is shaped as shown in Fig. 7 and is provided with tubing support seatings in which the parallel tubing strings 54, 54 are each positioned by a coupling 100 and a support sleeve 92. The hanger body is disposed within a tubing head 30 which is surmounted by a dual bore valve 110 enclosing nipples 104, 105 and back pressure valves 97. The tubing is fixed to the well casing by packing means (see Figs. 1 and 2 not shown) which permit tensioning of the tubing by the members 92, 100.
Patent GB-1181453-A (GB)
Title: Mould assembly for the continuous casting of metal.
IPC: B22D11/06
Filed: 1967-04-04
Abstract: 1,181,453. Continuous casting-machines. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. 4 April, 1967 [8 April, 1966], No. 15365/67. Heading B3F. A continuous casting mould 1 is formed by four flexible endless sheet-metal belts 5 movable on rollers 6, 7 and 8, the face of the belts forming the mould walls being inclined inwards towards the bottom of the mould to compensate for shrinkage of the solidifying strand 14, and the axis 12 of each mould wall being also inclined laterally relative to the mould axis, so that the four walls of the mould form a section of an inverted rectangular based right pyramid. One edge of each of the belts 5 is forced against the surface of an adjacent belt to seal the mould corners. Each belt 5 moves on rollers 6, 7 and 8 and spring-biased pressure rollers 21-24 that are mounted on a frame 16 that is movable with two degrees of freedom, i.e. rotationally about two horizontal axes formed through a pivot (36) (Figs. 3 and 4, not shown), by an hydraulic jack (39) to ensure that the mould walls conform with the tapered form of the solidifying strand 14. The belts 5 are cooled by water jets 30 and the rollers 6, 7 and 8 may have projections thereon to enable cooling water to pass between the rollers and belt. The strand 14 is lowered by extraction rolls 15, 15a
Patent GB-262832-A (GB)
Title: Improvements in or relating to the manufacture of acetic acid
IPC: C07C53/08
Filed: 1925-06-13
Abstract: 262,832. Dreyfus, H. June 13, 1925. Patent abandoned on opposition. Acetic acid is prepared by passing carbon monoxide and hydrogen in equimolecular proportions at elevated temperature and pressure over substances which are, or are capable of forming, acetates which decompose with the formation of acetic acid at temperatures under 450‹ C., and if not themselves capable of combining the gases, are associated with methanol-forming catalysts. Catalysts specified are copper oxide, tin oxide, lead oxide, copper acetate, aluminium methylate, tin methylates, or mixtures thereof; alkali acetates or methylates may also be present. Zinz oxide and methane-forming catalysts are excluded. The pressures employed may rise to 200 atmospheres, but is preferably of the order of 50-150 atmospheres; the temperature does not exceed 450‹ C. and is preferably kept at 200-300‹ C. An example is given. Specifications 20488/13 and 262,494 are referred to.
Patent GB-118728-A (GB)
Title: Improvements in or relating to the Brake and Clutch Mechanism of Locomotives, Railway Motor Cars, and the like.
IPC: B61H13/02
Filed: 1917-10-25
Abstract: 118,728. Baguley Cars, Ltd., and Bentall, L. Oct. 25, 1918. Controlling different functions by same handle or lever.-The brake and clutch mechanisms for locomotives, railway motor-cars, &c. are controlled from the operating hand wheel or lever l so that the power drive is declutched upon application of the brake. When the rock-shaft c is rocked to apply the brakes a, the cam e first disengages the clutch i.