baber/WOPTO huggingface dataset:
Patent GB-1433095-A (GB)
Title: Cyclohexane and cyclohexene precursors of prostaglandin and their preparation
IPC: C07C69/16
Filed: 1974-04-29
Abstract: 1433095 Cyclohexene and cyclohexane derivatives MERCK & CO Inc 29 April 1974 [2 May 1973] 18632/74 Heading C2C The invention comprises 4-(C 1 -C 5  alkoxy)- 3α - methyl - 4 - cyclohexene - 1α,2α - dicarboxylic acid anhydrides, 4-(C 1 -C 6  alkoxy)- 3α - methyl - 1α,2α - di(hydroxymethyl)-4- cyclohexenes, 4 - (C 1 -C 6  alkoxy) - 3α - methyl- 1α,2α - di(acyloxymethyl) - 4 - cyclohexenes and 2α - methyl - 3a, 4α - di(acyloxymethyl)cyclohexanones and the conversion of the latter compounds to 4-#-hydroxy-3α-methyl-1α,2α-di(acyloxymethyl)cyclohexanes by reduction. The 2α - methyl - 3α,4α - diacyloxymethylcyclohexanones are prepared by treating the corresponding 4 - alkoxy - 3α - methyl - 1α,2α - diacyloxymethyl - 4 - cyclohexenes with mineral acids; these compounds are obtained by acylating the appropriate 4-alkoxy-3α-methyl-1α,2α- di(hydroxymethyl) - 4 - cyclohexenes, made by reacting hydride reducing agents with the corresponding 4 - alkoxy - 3α - methyl - 4- cyclohexene - 1α,2α - dicarboxylic acid anhydrides, which are prepared by reacting maleic anhydride with the corresponding 3-alkoxy-1,3- pentadienes. The term acyl means C 2 -C 6  alkanoyl or benzoyl.
Patent GB-977182-A (GB)
Title: Centrifugal pumps
IPC: F04D29/42
Filed: 1961-05-23
Abstract: 977,182. Seals. DENVER EQUIPMENT CO. May 23, 1961 [June 8, 1960], No. 18665/61. Heading F2B. [Also in Division F1] The shaft 11 of a centrifugal pump, Fig. 1, having an axial inlet port 15 and a tangential outlet port 16, is sealed where it extends through an opening into the pump housing H opposite the inlet by a flexible seal S which is closed by its resilience and by liquid pressure when the impeller R is stationary and which, when the impeller is rotated to pump liquid, is opened by the suction created by the liquid being drawn away from the opening by means of vanes 24 provided on the rear side of the impeller and by the effect of centrifugal force due to rotation of the seal S with the shaft. The opening for the shaft is formed between a sleeve 36 secured to the shaft and a blind plate 35 secured to the housing. The seal S, Fig. 3, consists of a rubber or resilient plastic disc having an offset portion 43 and moulded to a frame comprising a ring 3 to which are riveted resilient flanged fingers 39 which are embedded in the disc. In a modification, Fig. 7, the portion 43<SP>1</SP> has an annular coil spring 46 located at its centre of gravity. The ring 38 is held between the sleeve 36 and the hub 14 of the impeller. When the impeller is stationary the portion 43 of the seal is urged against the blind plate 35 by the resilient fingers 39 and by the pressure of the liquid in the housing and prevents leakage of the liquid between the sleeve 36 and the blind plate 35. Upon rotation of the impeller, in addition to the suction produced by the vanes 24, centrifugal force acts on the offset portion 43 of the seal to move it out of contact with the blind plate 35.
Patent GB-516374-A (GB)
Title: Improved lubricants and their manufacture
IPC: C10M141/10
Filed: 1938-06-23
Abstract: 516,374. Lubricating compositions. DU PONT DE NEMOURS & Co., E. I. June 23, 1938, No. 18703. Convention date, June 25, 1937. [Class 91] A lubricating composition consists of a mineral, animal or vegetable oil, grease on fat containing about 1 to 10 per cent. by weight of an N-substituted carbamic acid of the general formula R-NHC# O which R is a H atom, an #\OR<1> alkyl, alicyclic or aryl group, R<1> is an alkyl, alicyclic or aryl group, and the total C content of R and R<1> is at least 4 C atoms. Specified carbamates are: those obtained by catalytic hydrogenation of alcohols boiling between 133 and 150‹C:, or 150 and 200‹C., or between 200 and 275‹C., N-phenyl dodecyl carbamate, the hexa-(N-dodecyl) carbamate of sorbitol, the N-dodecyl carbamate of isopropyl ethinyl carbinol, N-dodecyl ethyl carbamate.
Patent GB-146842-A (GB)
Title: Improvements in or relating to mouthpieces for respiratory apparatus
IPC: A62B9/06
Filed: 1920-07-05
Abstract: 146,842. Drõgerwerk H. & B. Drõger. March 29, 1916, [Convention date]. Respiratory appliances.-In a mouthpiece for respiratory apparatus of the type fitted with a plate which projects beyond the end of the mouthpiece and is adapted to be held between the teeth, the projecting portion consists of two spring strips a, b fixed at u to the metal mouthpiece m. The strips a, b give an elastic grip for the teeth, and are provided with outwardly bent thickened portions a<1>, b<1>. The mouthpiece, when not in use, may be closed by a stopper, which is pushed between the spring strips and is clamped thereby.
Patent GB-1002539-A (GB)
Title: Electrical capacitors
IPC: H01G4/224
Filed: 1961-05-24
Abstract: 1,002,539. Capacitors. A. H. HUNT (CAPACITORS) Ltd., and F. T. BAKER. June 12, 1962 [May 24, 1961], No. 18791/61. Heading H1M. A wound capacitor unit 14 comprising, e.g. one or more strips of dielectric material and metal, dielectric material bearing patterns of metallization or anodized aluminium and aluminium foil separated from one another by porous material impregnated with an electrolyte, is carried by a mandrel 11 (Fig. 1) which is supported by discs 12, 13 in a cylindrical casing 15 made of, e.g. aluminium, and deformed inwardly to engage grooves 21, 22 in the edges of said discs, terminal leads 18, 19 being connected to terminals 23, 24 mounted on a closure disc 26 which is secured by inward folding of the open end 25 of the casing. Alternatively, mandrel 11 and discs 12, 13 are integral with one another (Fig. 2, not shown), or mandrel 11 and disc 12 are integral with one another whereas disc 13 is secured by barbs on the mandrel (Fig. 3, not shown). Mandrel 11 may be replaced by spindles lie (Fig. 4) integral with discs 12c at either end of unit 14, or a barbed core integral with a single disc (Fig. 5, not shown), lodged at one end of unit 14.
Patent GB-385635-A (GB)
Title: Improvements relating to cylinder latches
Inventor: BIRCH CHARLES
IPC: E05B27/04
Filed: 1931-06-30
Abstract: 385,635. Locks. BIRCH, C. and JACKSON, G. H., Lower Brook Street, Walsall. June 30, 1931, No. 18831. [Class 44.] The pin tumblers of a revolving-barrel lock are cut to length before the lock is assembled. The combined length of the tumblers a, b is constant. Specification 170,288, [Class 44, Fastenings, Lock &c.], is referred to.
Patent GB-1222107-A (GB)
Title: Fluidic device
IPC: F15C1/18
Filed: 1968-04-22
Abstract: 1,222,107. Fluidic apparatus. PITNEYBOWES Inc. 22 April, 1968 [21 April, 1967], No. 18892/68. Heading G4P. Fluidic apparatus comprises a plate 12 in which a plurality of side-by-side fluidic elements are formed by channelling, each element comprising input 28 and exhaust 30 ways and an interaction chamber, means 80 formed in the plate for interconnecting the fluid input ways, cover means 18, and means 60, 63, 65 ... &c. formed integrally with the plate 12 for connecting external fluid conduits to the apparatus. A plastic sheet 14 prevents a cork gasket 16 from restricting the channels when the items are held together by rivets 22. In operation, in the absence of a control signal, laminar flow takes place from input 28 to output 30; but the presence of a control signal at 40, 42, 44 or 46 causes turbulence and almost all the flow then passes through vents 36, 38. This provides a NOR gate. By providing, e.g. a double outlet 98 from port 32, and by suitable interconnections AND, NAND and OR functions can be performed.
Patent GB-515721-A (GB)
Title: Improvements in or relating to security attachments for door-mats and the like
IPC: A47G27/04
Filed: 1938-06-27
Abstract: 515,721. Securing mats to floors. SEYD, F. O. June 27, 1938, No. 18934. [Class 142 (iv)] A door mat is releasably held in position by a headed member comprising a disc 11 with flexible strip metal legs 13, which are inserted through the mat and passed through the apertured washer-like end 15 of a connecting strip 14, 15. This is apertured or hooked at its outer end for engagement with a hook stud or headed pin on the architrave or other structure The legs 13 are bent over after being passed through the slot. A nut and bolt may replace the part 11, 13 and a chain may replace the strip 14, an apertured washer being positioned on the member 11, 13 between the bent out portion of the legs and'the chain, or a loop-ended cord or wire or expanding coiled spring may be used. Two sets of securing means are used.
Patent GB-601700-A (GB)
Title: Machines for the wet treatment of textile materials or the like
IPC: D06B5/00
Filed: 1945-07-24
Abstract: <PICT:0601700/IV (c)/1> A machine for the wet treatment of textiles comprises a hollow base or frame 1 supporting an outer vat 2 and through the medium of radial arms 3, an inner vat 4 provided with a perforated false bottom 5.  In the central opening 6 formed in the bottom 7 of the inner vat 4, can rotate a propeller 8 carried by a shaft 9 which passes through a stuffing-box 10 and on the lower end of which is rigidly secured a driving pulley 11 actuated by a reversible electric motor 12.  The inner vat is provided at its upper part with a perforated zone 15, the entire surface area of which is substantially equal to that of the perforated false bottom 5. When the propeller rotates, the treatment bath is sucked through the perforated bottom 5 and delivered into the annular chamber 16 from which the bath is again poured through the perforated zone 15 into the vat 4.  In a modified apparatus, the propeller is contained in a separate cylinder alongside the main vat.
Patent GB-191685-A (GB)
Title: Improvements relating to liquid fuel burner fittings
IPC: F23N5/24
Filed: 1922-07-12
Abstract: 191,685. Howden & Co., Ltd., J., and Hume, C. W. July 12, 1922. Locking catches.-In a burner fitting of the type in which the burner is readily removable, the oil supply cock handle 1 carries by means of a pivoted arm 2 a cover 3 which prevents operation of the burner release screw 4 except when the cock is closed. A pin and slot connection 10 may be provided between the arm 2 and the handle 1 to permit a certain amount of lost motion. The arm 2 rides over the cock spindle 7 and one of the gland studs 8 may be extended to prevent the cover from being lifted after the handle has passed its mid-position. Alternatively, the cock may be arranged to close when the handle is in its mid-position. When the release screw 4 has been turned to permit withdrawal of the burner it prevents operation of the cock handle by engagement with the cover 3. In a modified form in which the releasescrew is fitted with a hand-wheel the cover consists of a recessed plate which is raised by a projection on the lever when the valve is closed.
Patent GB-354488-A (GB)
Title: Improvements in two-stroke cycle engines having co-axial pistons in each cylinder
IPC: F02B25/00
Filed: 1930-06-23
Abstract: 354,488. Two-stroke engines. MARTIN, W. C., Donnelsville, Ohio, U.S.A. June 23, 1930, No. 19130. [Classes 7 (ii) and 7 (vi).] Air compressed in the crank case is delivered to the combustion chamber through the transfer duct 21 and a passage 23 in the main piston head to scavenge the chamber before the admission of the combustible mixture. This is pre-compressed in the pump chamber 4 by the enlarged part 6 of the main piston 5 and flows through channels 26 and an annular chamber 24 in the main piston to ports 25 ; inside the main piston reciprocates a smaller piston 29 which controls the delivery of the mixture to the combustion chamber from the ports 25. Both pistons work on the same crank pin 28 of the engine shaft, but the big end of the connecting-rod 35 belonging to the small piston takes over an eccentric sheave 37 mounted on the crank pin. The small end of this connecting-rod and its attachment to the small piston are arranged with a gap to allow the main gudgeon pin 32 to be mounted on the piston 5. Cylinders, ports and internal passages of, and arrangement of igniters in.-At the end of the instroke a cup-shaped projection 22 on the main piston encloses the lower part of a perforated tube 47 carried by the cylinder head; the spark plug is mounted in this tube, the mixture within the tube and cup being ignited before that contained in the main part of the combustion chamber. The exhaust ports 42,. Fig. 8, are made higher at a place opposite the exhaust manifold. Valves.-The two beat valves 15, 16 controlling the admission of air to the crank case and mixture to the pump chamber are coaxial; the valve stem 17 of the mixture valve 15 passes through the head of the air valve, a single, spring 20 between this head and stem tending to keep both valves on their seats.
Patent GB-127499-A (GB)
Title: Improvements in and relating to the Valves of Pumps.
IPC: F16K15/02
Filed: 1918-11-22
Abstract: 127,499. Fullerton, Hodgart, & Barclay, and McGregor, W. Nov. 22, 1918. Check or non-return valves.-The valves of pumps of the " hydraulic, water, or mine " classes are each formed of a thin rigid plate 4 of strong tough steel of oblong or like shape guided, preferably by its ends, in notches 5 in end bars 6. Guards 9 secured by studs 8 carry springs 12 enclosed in thimbles 11 pressing on the backs of the valves. The lower edges of the valve plates and the upper edges of the seating ports 3 are rounded, and the sides of the seating passages 3 are angled or curved in a manner converging towards the port in order to facilitate the rapid and quiet passage of the fluid through the valves.
Patent GB-1436062-A (GB)
Title: Metering pump
IPC: F01M3/00
Filed: 1974-05-02
Abstract: 1436062 Rotary pumps GENERAL MOTORS CORP 2 May 1974 [14 May 1973] 19222/74 Heading F1C In a pump, e.g. for delivering lubricating oil to the seals of a rotary engine, the pump rotor 76 is mounted for rotation in a housing 72 about an axis 95 and is surrounded by a control ring 82 mounted for angular adjustment in the housing about an axis 94 spaced from the axis 95. The inner cylindrical surface 107 of the control ring and the outer cylindrical surface 77 of the rotor define therebetween an annular pumping chamber 98 of varying radial extent. During operation, oil is delivered from the engine to the chamber 98 via bores 79, 103 and is discharged from the chamber via port 106 in the control ring. Rotation of the rotor creates a pressure region in the chamber 98 having its maximum pressure at the position of minimum radial extent of the chamber with the pressure progressively decreasing therefrom in the direction opposite to that of rotor rotation. Thus by angularly adjusting the control ring as by the engine throttle control via arm 87, the port 106 is moved around the region to a position of greater or smaller pressure to thereby establish greater or smaller oil flow. Moreover, the oil pressure and flow is dependent on the speed of the pump rotor, the latter being driven by the engine via shaft 52. The discharging oil passes  through port 106 and along passage 117 to a port 118 which is periodically communicated with an outlet duct 124 via a transfer channel 120 in the rotor. In an alternative arrangement, Fig. 7 (not shown), the control ring is of varying radial thickness so that its adjustment additionally controls the minimum radial extent of the pumping chamber. Embodiments of Figs. 8 to 11, Figs. 15 and 16 (not shown), disclose other arrangements of transfer channels in the rotor associated with single and multiple outlet ducts. Embodiments of Figs. 12 to 14 (not shown), disclose transfer channels of varying width extending axially along the rotor and associated with angularly and axially-spaced outlet ducts to provide different outlet flow quantities. In a final embodiment, Fig. 17 (not shown), the control ring is mounted at the end of housing remote from the engine.
Patent GB-596509-A (GB)
Title: Improvements in and relating to centrifugal governors
IPC: G05D13/00
Filed: 1945-07-27
Abstract: 596,509. Speed governors. JENSEN, K. J., JENSEN, K. H. F., and JACOBSEN, H. F. July 27, 1945, No. 19313. [Class 80(ii)] [Also in Group XXVI] To minimise friction losses in the moving members of a slipping clutch centrifugal governor an axially movable spring 8 has interposed between its ends and the sliding collars 4, 5, rings 13, 13a formed with projectors 14,15 on either side, the projectors on one side being offset 90 degrees to the other side to provide a universal joint. To ensure that any governor movement is conveyed evenly to the slipping clutch, the friction disc 3 is fixed to an outer ring 16 which is connected to the sleeve 12 by means of an intermediate ring supported on diametrically opposed pivots.
Patent GB-118379-A (GB)
Title: Improvements in Rotary Shears for Cutting Metal.
IPC: B23D23/02
Filed: 1917-12-31
Abstract: 118,379. Bates, A. J., and Bates Expanded Steel Truss Co. Dec. 31, 1917. Expanded metal.-In rotary shearing-machines, particularly for slitting metal beams prior to expanding, the blades, at their nearest approach, are separated by a distance equal to one half the thickness of the metal operated on. The blades 88, Fig. 11, are backed up by plates 89 and clamped by bolts 91 and rings 90 to wheels 8, 9 having engaging teeth 10. The lower blades are spaced apart by blocks 97 to equalise the lateral reaction, and the pairs of blades are arranged to produce staggered cuts. The blades may also have progressively varying length. The wheels 8, 9 are rotated by a motor 11, Fig. 5, through gears 16, clutch 23 .and gears 17, 18, 21, but are stopped, after one revolution, by a cam 36 on the wheel 9 acting on a lever 33, which is normally in engagement with a notch 32 in a bar 28 connected to a lever 25 to withdraw the clutch 23 and operate brakes 41. The wheels 8, 9 are restarted by operating a treadle 44, Fig. 1, which is connected by linkage 48, 49, 51 to the bar 28 which it dis-engages from the lever 33, thus allowing it to be advanced by the spring 30. The work 98 is fed to the cutters by a projection 58 on a chain 57 which is moved at the correct speed by chain-wheel 59 and gears 61, 62, the last being on the intermittently driven shaft 19, Fig. 5. The cut blank is drawn from the cutters by rolls 70, driven continuously through gears 73, 75 and chain drive 77, which may complete the severance by pressing the partly-cut metal back into one plane. The blank is then received' by rollers 83, and until it is removed the lever 84 cannot rise, and as this is connected to the treadle gear the machine cannot be re-started.
Patent GB-1126535-A (GB)
Title: Improvements in articles of footwear comprising multi-part soles and methods of and apparatus for the manufacture thereof
IPC: B29D35/08
Filed: 1966-05-03
Abstract: 1,126,535. Boots &c. DESMA-WERKE G.m.b.H. 3 May, 1966 [5 May, 1965], No. 19353/66. Heading A3B. [Also in Division B5] A shoe has a sole 13 of elastic foam material injection moulded directly into the shoe bottom and an edge strip 14 of firm, homogenous elastic material injection moulded on to the sole. The sole 13 may be a polyurethane foam and may extend over the edge strip 14 at 15. The sole may project beyond the upper to simulate a welt or may be flush with the upper and may include a felt bottom filler. The sole is produced in a mould having split side walls 17, and a movable bottom plunger 18 which is surrounded by a movable rim 20. With the rim 20 in the raised position the sole material is injected through ducts 22, 23 and when the sole has solidified the rim 20 is lowered and the edge material is injected through ducts (riot shown) in the side walls 17. During the injection of the sole material 13 the bottom plunger 18 may be lowered to aid the expansion of the sole material 13, and after the sole has solidified may be further lowered so that the material of the edge 14 extends over the bottom of the sole. If the edge strip 14 extends around the heel the rim 20 is divided into three parts, one part surrounding the sole, another the heel and the third part covers the breast face of the heel.
Patent GB-599728-A (GB)
Title: Improvements in or relating to processes for increasing the resistance of metals to corrosion
IPC: C23C22/08
Filed: 1944-10-09
Abstract: A process for producing a corrosion-resistant surface on metals-particularly iron, steel, zinc, cadmium, aluminium and its alloys-comprises applying to the metal surface a phosphatisation solution having dissolved therein a minor proportion, i.e., an amount up to their maximum solubility in the bath and normally not exceeding 1 per cent., of one or more hydrated complex ammonium phosphates of a bivalent metal in which at least 50 per cent. of the metal is in the anion.  The structural formula of such complex phosphates is stated to be <FORM:0599728/III/1> where M is one of the metals cobalt, nickel or copper, and they are conveniently added to the phosphating bath whilst in solution in phosphoric acid.  An improvement is stated to be obtained by heating the complex phosphate until the evolution of ammonia virtually ceases before adding it to the phosphating solution, and mixtures of such heated complex phosphates with the non-heated type may be used.  The phosphating baths described in Specifications 419,487 and 447,176, [both in Group II], are said to be particularly suitable for receiving such complex phosphates, and a method of preparing the complex phosphate of copper is described.ALSO:A process for producing a corrosion-resistant surface on metals-particularly iron, steel, zinc, cadmium, aluminium and its alloys-comprises applying to the metal surface a phosphatisation solution having dissolved therein a minor proportion, i.e. an amount up to their maximum solubility in the bath and normally not exceeding 1 per cent of one or more hydrated complex ammonium phosphates of a bivalent metal in which at least 50 per cent of the metal is in the anion.  The structural formula of such complex phosphates is stated to be (NH4)4+[M.(H2O)4]++ [PO4.M.PO4.M.PO4.M.PO4]...... where M is one of the metals cobalt, nickel or copper and they are conveniently added to the phosphating bath whilst in solution in phosphoric acid. An improvement is stated to be obtained by heating the complex phosphate until the evolution of ammonia virtually ceases before adding it to the phosphating solution, and mixtures of such heated complex phosphates with the non-heated type may be used.  The phosphating baths described in Specifications 419,487 and 447,176 are said to be particularly suitable for receiving such complex phosphates, and a method of preparing the complex phosphate of copper is described.
Patent GB-856596-A (GB)
Title: Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing systems
IPC: H04R9/16
Filed: 1957-06-20
Abstract: 856,596. Gramophone pick-ups. TELEFUNKEN G.m.b.H. June 20, 1957 [June 21, 1956], No. 19411/67. Class 40 (2). [Also in Group XXXIX] In a transducing arrangement which records or reproduces two separate signals simultaneously and is used in association with a single stylus and a disc record having a complex cut, two independent moving-coil transducers I, II, Fig. 1, are arranged with their pivoted armatures 5, 6, at right angles, the two transducers being mechanically decoupled from each other by a linkage comprising a leaf-spring 7 carrying the stylus 8, and a cranked wire 10 coupled to the stylus by a flexible sleeve 9 formed for example from polyvinyl chloride. As shown, vertical stylus movement is transmitted to armature 5 alone by the flexible sleeve which is substantially rigid in its axial direction, while horizontal stylus movement is transmitted by the leaf-spring to armature 6. This arrangement uses separate magnet systems for the two transducers, one comprising permanent magnets M and flat polepieces 1, 2 while the other comprises a single permanent magnet M II  and cranked polepieces 3, 4. Alternatively the magnets M may be common to both transducers, Fig. 2, by using shaped polepieces 1-4. In a further arrangement, Fig. 4, a single magnet M is associated with pressed polepieces. A non- magnetic supporting bracket 16 for a pivoted armature is shown in Fig. 3, comprising flanges 18, 19 which engage slots 17, 21 in the polepieces 3, 4.