baber/WOPTO huggingface dataset:
Patent GB-623049-A (GB)
Title: Improvements in means for removing the boundary layer of flow appearing on the surfaces of aircraft
IPC: B64C21/06
Filed: 1946-10-01
Abstract: 623,049. Reducing surface friction on aircraft. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Oct. 1, 1946, No. 29266. Convention date, Oct. 10, 1945. [Class 4] In an aircraft having an internal-combustion turbine or turbines 1 fed by a compressor 4, the boundary layer of air is removed through slots 11 and ducts 10 in the wing 2 and other surfaces and through an aperture 8 in the air intake 7 of the compressor, the area of the air intake 7 being adjustable manually or automatically to ensure that the static pressure thereat is less than that at any part of the aircraft surface. The aperture 8 is preferably near the narrowest section of the air intake. The area of the aperture 8, which may comprise an annular set of small apertures, may also be variable and non-return valves may be provided in the ducts 10. As shown, a non-rotary member 52 is mounted at the front of a rotary member 5<SP>1</SP> carrying the moving blades of the axial-flow compressor 4 and the fixed blades 3 are carried by the casing. The boundary layer air may be removed in part from the fuselage and ailerons, and some of the slots employed for this purpose may be adapted to be closed by flap valves.
Patent GB-519260-A (GB)
Title: Arrangement for the attachment of vehicle wheels
IPC: B60B3/14
Filed: 1938-10-10
Abstract: 519,260. Vehicle wheels. ROSEN, E: C. G. Oct. 10, 1938, No. 29332. Convention date, Oct. 9, 1937. [Class 144 (i)] A detachable wheel is secured by means of a ring 6 having key-hole slots 7 to co-operate with headed bolts 1 projecting from the axle &c. flange 2, mating wedge surfaces 8, 9 being provided on the ring 6 and the wheel-centre between the bolt positions. The ring 6 may be fitted with locking-means such as a spring plate 11 having a serrated slot 13 to engage one of the bolt-heads. In a modification (not shown), the wedge elements may be engaged by relative radial adjustment.
Patent GB-503967-A (GB)
Title: Feed water regulator for steam generators and boilers
IPC: F22D5/22
Filed: 1937-10-27
Abstract: 503,967. Feed-water regulators for steam boilers. TAYLOUR, W. E. HOLLIS-. Oct. 27, 1937, No. 29334. [Class 123 (ii)] A feed-water regulator for maintaining tho water in a steam generator at one of a number of levels comprises a cylinder 1 connected at its lower and upper ends with the steam and water spaces of the generator 2. Conduits 8, 9, 10 at different levels load from the cylinder 1 to a steam driven water-feed pump 25. A float piston 4 closes the end of one of the conduits so that on the level of the water falling below the selected level steam passes through the open conduit to operate the pump to restore the water Lovel.
Patent GB-876828-A (GB)
Title: Means for attaching heel tips or treads to shoes
IPC: A43B21/48
Filed: 1959-08-28
Abstract: 876,828. Top-lift attaching machines. SOLER, T. F. Aug. 28, 1959 [Sept. 2, 1958; Oct. 18, 1958; Dec. 9, 1958], No. 29428/59, Classes 17 (1) and 17 (3) A heel tip or tread-piece 13, Fig. 1, is attached to the heel 14 of a shoe by means comprising a rod 10 slidable in an axial bore in the heel, means 11 at the lower end of the rod for detachably securing the heel tip or tread thereto, means for locking the rod in a position to hold the tip or tread tightly and rigidly against the heel bottom, arid means for releasing the rod 10 to permit it to slide in the bore to move the heel tip or tread away from the heel 14 to permit its removal and replacement. The means 11 comprise a hook or L-shaped part formed at the lower end of the rod 10 and adapted to fit into a corresponding recess in the tip or tread. The latter is shown in greater detail in Fig. 2 and consists of a hardened tip or tread piece 13 integral with or secured to a supporting member 12 provided with vertical and horizontal channels 23, 24. The rod 10 is held in locked position against the action of a spring 17 by means of a pivoted bell-crank lever, 18, 19, the arm 19 of which has a forked end adapted to engage below a pin 20 on the rod 10. The rod 10 is released by downward pressure on the end of the arm 18 remote from the pivot 21. In another embodiment (Fig. 3,), the locking means comprises two axially slidable rods 31, 32 in vertical bores 27, 28 respectively, each rod being provided with an annular groove 37,38 respectively so that one of the rods may be locked in position when the ball 30 lodges in the groove carried by that rod. To unlock the rod 32 carrying the heel tread or tip, rod 31 is forced down against the action of spring 33 until its groove 37 is in alignment with groove 38 in rod 32 when the latter is able to move downwardly under the action of spring 34. In a further embodiment (Fig. 6), the locking means comprises a laterally slidable fork member 43 having a knife edge 48 pressed by a spring 46 into engagement with one of a series of notches 47 in the axially slidable rod 41. One end 44 of the member 43 projects beyond the side of the shoe heel 39 whereby it may be forced inwardly to release the rod 41.
Patent GB-538715-A (GB)
Title: An improved method for reacting tertiary hydrocarbons and olefins
IPC: C10G50/00
Filed: 1939-11-06
Abstract: 538,715. Gasolines. STANDARD OIL DEVELOPMENT CO. Nov. 6, 1939, No. 29469. Convention date, Nov. 12, 1938. [Class 2 (iii)] A gasoline of high octane number is produced in a continuous system in which an emulsion is circulated comprising a saturated tertiary hydrocarbon and a concentrated mineral acid catalyst capable of effecting alkylation. The acid is separated from the hydrocarbon products leaving the reaction zone, the acid is returned to the circulating emulsion, and the hydrocarbons, after removal of a portion from the system are re-introduced together with the fresh feed of tertiary hydrocarbon and olefine in such proportion that the ratio of tertiary hydrocarbon to olefine is at least 30 : 1 by volume. In a modification, only the C4 fraction of the separated hydrocarbon is returned to the system. In the Figure, fresh feed is introduced through inlet 17 and after passing the cooling coil 31 meets recycled acid before passing to pump 19 and reaction towers 2, 4 containing sulphuric acid. After leaving tower 4, the reaction mixture enters separator 6, the hydrocarbons leaving by pipes 8 or 15 and the liquid catalyst by pipe 7. Fresh catalyst is added through pipe 20. Isobutane, isopentane and isohexane are the isoparaffins specified and besides C4 olefines from refinery and cracking processes, butene polymers and isobutene may be used as olefines in the process. Specification 531,383 is referred to.
Patent GB-1124536-A (GB)
Title: Polycyclic dyestuffs derived from a substituted naphthalene-1:4:5:8-tetracarboxylic acid
Inventor: IRVING FRANCIS
IPC: C07D471/06
Filed: 1966-07-01
Abstract: Synthetic linear polyesters, in particular polyethyleneterephthalate, are mass-coloured with polycyclic dyestuffs of the formula <FORM:1124536/C3/1> wherein R1 represents (C1-C4)-alkyl, hydroxy-(C1-C4)-alkyl, hydroxy-(C1-C4)-alkoxy-(C1-C4)-alkyl or optionally substituted aryl radical, and R2 represents an optionally substituted aryl radical, provided that the dyestuffs contain at least 2 hydroxy-(C1-C4)-alkyl or hydroxy-(C1-C4) - alkoxy - (C1-C4) - alkyl radicals which can either be represented by R1 or which are attached either directly or through bridging atoms or groups to aryl radicals represented by R1 or R2. Examples are given in which polyethylene terephthalate is mass-coloured.ALSO:The invention comprises polycyclic dyes of the formula <FORM:1124536/C4-C5/1> wherein R1 represents C1-C4 alkyl, hydroxy-(C1-C4) alkyl, hydroxy-(C1-C4) alkoxy (C1-C4) alkyl or optionally substituted aryl; and R2 represents an optionally substituted aryl, provided that the dyes contain at least two hydroxy-(C1-C4) alkyl or hydroxy-(C1-C4) alkoxy-(C1-C4) alkyl radicals which can either be represented by R1 or which are attached either directly or through bridging atoms or groups to aryl radicals represented by R1 or R2.  They may be obtained by reacting 2:6-dichloronaphthalene - 1:4:5:8 - tetracarboxylic acid or the corresponding anhydride with an amine of the formula R1NH2 and reacting the resulting imide with an amine of the formula R2-NH2.  Specified bridging atoms or groups are -O-, -S-, <FORM:1124536/C4-C5/2> wherein R3 is H, C1-C4 alkyl or hydroxy (C1-C4) alkyl.  Examples are given for the production of the dyes. They are useful for mass-coloration of linear polyesters.
Patent GB-464985-A (GB)
Title: Improvements in electric wave filters
IPC: H03H7/01
Filed: 1935-10-28
Abstract: 464,985. Impedance networks; valve circuits. MEININGHAUS, B. A. Oct. 28, 1935, No. 29695. [Classes 40 (iii) and 40 (v)] In a system for filtering highfrequency oscillations, a tuned circuit such as 4, 5 is connected in series with a reactance such as 7 and the whole is shunted by a similar reactance such as 6, the input and output terminals being identical. The circuit yields a resonance characteristic having a resonance at frequency B, Fig. 2, and an antiresonance at another frequency A. According to the nature of the reactances 6, 7, A is lower than B, as shown, or higher than B, Fig. 3 (not shown). Two such filters in combination yield a pass band with sharp cut-offs, Figs. 4, 5, (not shown), and may be arranged at separate stages in a valve system, as at 4, 5, 6, 7 and 18, 19, 20, 21, Fig. 6, or they may be adjacent and coupled together by a condenser, Fig. 7 (not shown). The same part 6 of the divided reactance 6, 7 serves both as input and as output coupling, but the second filter, with a resonance characteristic opposite to that shown in Fig. 2, is obtained by using the reactance 20 as an input coupling and the reactance 21 as an output coupling. The Specification discusses the optimum relative values of the condensers. The condensers are mechanically coupled as shown. A modification suitable for an intermediate-frequency superheterodyne amplifier is described with reference to Fig. 8 (not shown). Circuits in which the reactances 6, 7 are inductive are illustrated in Figs. 9, 10 (not shown).
Patent GB-979581-A (GB)
Title: Apparatus for dispensing packaged goods
Inventor: KEAN GEORGE CRUICKSHANK
IPC: B65G1/137
Filed: 1961-08-18
Abstract: 979,581. Counting-apparatus. ROTAX Ltd. Aug. 2,1962 [Aug. 18,1961], No. 29846/61. Heading G4D. A perforated card bears orders for the delivery of packages from a number of shoots. The card is inserted into a reader 19 and after switch 8 has been closed a counter 10 steps until the reader finds a column in the card bearing a set of perforations. Solenoid 27, Fig. 4, of the shoot corresponding to the column then energizes to deliver a package which closes contacts 28, 29 in succession so advancing a counter 31 and restoring solenoid 27. Solenoid 27 is immediately re-energized to deliver another package and the cycle repeats until the number on the counter 31 equals the number registered in the column of the card. Gate 43 then opens to reset counter 31 and re-start counter 10 which advances until the next perforated column is detected. If a shoot contains too few packages circuit 46 operates to indicate the deficiency at 49.
Patent GB-445878-A (GB)
Title: Improvements relating to rotary compressors, superchargers and the like
IPC: F04C18/344
Filed: 1934-10-18
Abstract: 445,878. Rotary compressors. JAMESON, J. L., Elland, Hemingford Road, Cheam, Surrey. Oct. 18, 1934, No. 29891. [Class 110 (ii)] A rotary compressor of the eccentric rotor 1, sliding-vane 5, type, is provided with rotary end cups 6 which are actuated by mechanism within the rotor. The casing bore 4 is of slightly greater diameter than than of the cups, the latter supporting the vane tips during operation of the compressor. Axial rods 8 pass through circular bores 7 in the rotor and are secured at each end to the cups. At one end of one pair of rods arcuate slippers 10 are pivotally mounted, and bear on the peripheries of two bores 7. Similarly, the other two rods 8 are provided with slippers at the other end. The slippers may be replaced by discs within the bores 7, or links may connect stub shafts on the rotor to bolts secured to the end cups. The ends of rods 8, support rings 16 which press against shoulders cut in the vanes. Slippers or discs may be provided at both ends of the rods. Lubrication of the compressor is provided by means of a tube 19 supported by a partition 20. Small passages 21, 22, lead the lubricant to the bore 18 and conduits 23. Ball or roller bearings may be provided on the slippers, discs or links. Specifications 404,337 and 443,951 are referred to.
Patent GB-1041806-A (GB)
Title: Moisture-curing surface coating compositions of isocyanate-ended polyurethanes containing epoxy groups
Inventor: SHEARING HERBERT JACKSON
IPC: C08G18/79
Filed: 1964-07-27
Abstract: An organic polyisocyanate containing isocyanurate rings and epoxy groups is obtained by reacting together a condensation product of epichlorhydrin and diphenylolpropane with an excess of polyisocyanate containing isocyanurate rings.  Preferably 3-6 isocyanate groups should be provided for each isocyanate reactive group.  The polyisocyanates of the invention may be used for coating substrates when dissolved in an organic solvent which does not react with the isocyanate; the coatings are allowed to dry, optionally with heating. Pigments, fillers, flame-proofing agents, surfactants, catalysts and antioxidants may be present. A suitable isocyanate containing isocyanurate rings, which may be used as a starting material, is described in Example 1 of Specification 954,095.
Patent GB-836608-A (GB)
Title: Improvements in or relating to carburettor systems
IPC: F02M3/08
Filed: 1956-10-02
Abstract: 836,608. Carburetters. HEFTLER, M. B., and HEFTLER, P. V. Oct. 2, 1956, No. 29949/56. Class 7(3) A heat exchanger 12 is associated with the idling conduit 7 which draws in fuel from a constant level fuel well, not shown, through a restriction 10 and air through an air bleed 11. The heat exchanger may be heated by the engine or by some part or medium associated with the engine. It can be built into a cylinder head bolt and on liquid cooled engines, its maximum temperature will be limited by a coolant thermostat (not shown), of the engine. It may be heated by the exhaust manifold. In a modification a by-pass conduit is connected between the conduits 6, 7 and a restriction may be located in this conduit and in each of the conduits 6, 7 adjacent the heat exchanger. The fuel used may be alcohol.
Patent GB-611228-A (GB)
Title: Plastics molding apparatus
IPC: B29C45/68
Filed: 1945-11-09
Abstract: 611,228. Injection-moulding &c. machines. TRIGGS, W. W. (Improved Paper Machinery Corporation.). Nov. 9, 1945, No. 30021. [Class 87(ii)] The lower pair of the four tie-rods 32 are anchored at the left-hand end, Fig. 1, but are movable at the righthand end. They carry non - threaded extensions 32x that are received in bearings 61 which are anchored to the frame C. During moulding the tie-rods stretch and the extensions 32x slide in their bearings. The mould sections 36, 37 are clamped between crossheads 31, 33. The crosshead 31 is slidable on the tie-rods and bears against nuts 32a on the rods during moulding. The crosshead 33 is reciprocable on 'the rods by means of toggles 40 operated by hydraulic plunger 43. At their limiting position, Fig. 2, the toggles have not reached their dead centre. When the mould is opened, frictional interengagement between the mould parts 36 and 37 pulls 36 and hence crosshead 31 a little to the left, thus breaking contact between the injector nozzle 22 and the mould orifice; this leftward movement of crosshead 31 is limited by engagement of a projection 96 thereon with a spring-pressed pin 97 on the frame. When the crosshead 31 is to be moved leftward along the tie-rods, the pin 97 may be withdrawn. Knockout pins 95 are carried on a frame 91 clamped on the tie-rods.
Patent GB-215674-A (GB)
Title: An improved waterproof apron for use in connection with submarine diving operations
IPC: A41D13/012
Filed: 1923-11-29
Abstract: 215,674. Heinke & Co., Ltd., C. E., (Goldie, L. J.). Nov. 29, 1923. Wearing-apparel for use in connection with submarine diving ; aprons. - A protective device for the use of a diver's "tender" or assistant comprises a waterproof apron a carrying a resilient pad o so that the wearer's body is protected from spray &c. and against pressure when leaning over the boat. The aprons, shown in back view, extends from the neck at b, under the arm at e, and over the thighs at c. The pad o, which is made of kapok, cotton waste, horsehair, or the like, is carried in a pocket k closed by a flap m. Lace holes j are provided for cords which are passed over the shoulders and around the body and thighs.
Patent GB-612096-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1946-10-09
Abstract: 612,096. Cutting slices in succession. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. Oct. 9, 1946. No. 30120. Convention date, March 7, 1942. [Class 28(ii)] In a slicing mach ine of the type having a substance sup porting carriage 5 which is reciprocable past a slicing knife 1 journalled in a stationary bracket 3 under the guidance o! two sets of guides the guides are arranged respectively above and below the carriage. As shown, the carriage 5 is supported below by a reciprocable structure having upper and lower links 15, 16 carrying the guides. The limb 16 is formed as a trolley having rollers 17 which ride on a rail 18 secured to the underside of the machine, whilst the upper limb 15 has a guide part 14 which is slidable in a guideway provided in an arm 8, formed integrally with the knife bracket 3. One wall of the carriage 5 which is detachably secured to a platform on the limb 16 by screws 20 fits on a hook-like recess 21 on the upper limb.
Patent GB-1310253-A (GB)
Title: Grease composition
IPC: C10M169/00
Filed: 1970-06-22
Abstract: 1310253 Greases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 22 June 1970 [23 June 1969] 30145/70 Heading C5F Greases comprise a thickened hydrocarbon lubricating oil + 0À1-3 wt. per cent of a phenothiazine oxidation inhibitor + 7-30 wt. per cent of a polyester (i.e. 2 or more ester groups) of one or more C 1 -C 20  alcohols and one or more C 3 -C 20  acids. The thickener may be waterproofed clay or a lithium soap, e.g. lithium hydroxy stearate. Many examples of phenothiazines are given including N-benzyl- 3,7-dioctyl phenothiazine. Many examples of esters are given including pentaerythritol esters, sebacate, phthalate and polyglycol diesters and complex esters. The grease may also contain sodium nitrite, sodium sebacate, amino- or benzo-triazoles, glycerol mono-oleate, phenyl- #-naphthylamine, metal dithiocarbamates, dilauryl selenide and polymethacrylates.
Patent GB-321660-A (GB)
Title: Improvements in and relating to photographic film driving apparatus
Filed: 1928-07-13
Abstract: 321,660. British Thomson-Houston Co., Ltd., (Assignees of Heisler, C. L.). Aug. 11, 1927, [Convention date]. Divided on 295,378, [Class 40 (ii), Phonographs &c.]. Kinematograph apparatus. - Rollers between which the film passes are automatically separated by the opening movement of the door of the casing of the apparatus, to facilitate threading. Preferably the separation only occurs when the door is opened beyond a predetermined position. The invention is shown as applied to the soundrecording apparatus described in Specification 295,378, [Class 40 (ii), Phonographs &c.]. The film 4 is pressed against a sprocket 6 by a roller 60, and against a drum 21 by rollers 55, 56, the sprocket and drum co-operating to feed the film past a slit in a member 65 which is pivoted at 66. Two levers 52, 53 are mounted on a common pivot, one lever, 53, pivotally supporting a plate 54 on which the rollers 55, 56 are mounted, while the lever 52 has an arm 59 on which the roller 60 is pivoted. The rollers are held down by spring action on the levers 52, 53. The lever 52, is also connected to the plate 65 by a link 64. When the door 2 of the casing, Fig. 3, is opened widely, a bar 49 thereon engages a lever 48, which thrusts a wedge-piece 50 between the outer ends of the levers 52, 53. The movement of the levers thus caused shifts the rollers 55, 56, 60 away from the drum and sprocket respectively, and moves the member 65 away from the drum.
Patent GB-425708-A (GB)
Title: Improvements in or relating to free piston internal combustion elastic fluid compressors
IPC: F02B71/04
Filed: 1933-11-01
Abstract: 425,708. Air compressors. JUNKERS, H., 21, Hauptmann Loeper Platz, Dessau, Anhalt, Germany. Nov. 1, 1933, No. 30342. Convention date, Jan. 18. [Class 8 (i)] An internal-combustion engine air compressor has two free pistons 2, the smaller faces of which act in the internal combustion cylinder 1, and the larger faces of which act in the air compressor cylinders 5, 6. The annular spaces 11 and the pipe 12 contain a fixed mass of gas, the pressure of which is selected to ensure a constant inner dead centre of the pistons with variations in the length of stroke. A valve 13 ensures that the pressure in the pipe 12 does not rise above atmospheric pressure. In a modification the chamber 11 is connected by a non-return valve to the scavenging air receiver. The Specification as open to inspection under Sect. 91 comprises also a similar air compressor with all the pistons of equal diameter and having a fixed ratio of compression to ensure a constant inner dead centre with varying strokes. A two stage air compressor of this type was also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-1142960-A (GB)
Title: Differential mechanism
IPC: F16H48/08
Filed: 1966-07-06
Abstract: 1,142,960. Differential gears; friction clutches. BORG-WARNER CORP. 6 July, 1966 [29 July, 1965], No. 30395/66. Headings F2C and F2D. A motor vehicle &c. limited slip differential of the planetary bevel gear type, has output shafts S clutched through members 35, slidably splined thereon, to an input housing 11 by inserts I, each having a drive tab 59 received in a slot 19 in the housing and a conical friction surface 54 engaged by the member 35, to resist differential action. The clutches are engaged by spring pressure reinforced by the force due to tooth reaction. Each of the conical friction surfaces of the members 35 is formed with a spirally progressive groove 37, and the inserts I with holes 63 for lubrication. The inserts I may have more than one tab 59, the housing having a corresponding number of slots 19. Again, Fig. 2 (not shown), the members 35 and side gears 27 are formed integrally (69), and the spring biasing of each insert (I 2 ) into engagement with the integral member (69) is provided by a spring (75) inserted between the insert (I 2 ) and an axial extension of the integral member (69) along the shaft S.