baber/WOPTO huggingface dataset:
Patent GB-451928-A (GB)
Title: Improvements in and relating to the exhaust passages of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1934-11-08
Abstract: 451,928. Exhaust systems. KADENACY, M., 120, Rue Lecourbe, Paris. Nov. 8, 1934, No. 32202. [Class 7 (ii)] In a two-stroke engine, in which the mass exit of the exhaust gas from the cylinder is used to induce a fresh charge, and in which the inlet ports 5 are not opened until this mass exit occurs, the exhaust system allows free outward motion of the gas, but tends to byepass any return into a chamber 8. The exhaust preferably flows through a nozzle 10, concentric with the chamber 8 and having half the area of the annular communicating passage. The chamber may have torroid form. A deflector body comprising two cones with their bases in contact may be located in front of the nozzle. Specifications 431,856, 431,857, and 433,502 are referred to.
Patent GB-264144-A (GB)
Title: Improvements in or relating to mechanical movements
IPC: F16B1/00
Filed: 1926-12-20
Abstract: 264,144. Bethlehem Steel Co., (Assignees of Nieman, H. W.). Jan. 7, 1926, [Convention date]. Crossheads.-A formula for a mechanical movement is evolved from an analysis of the relations between a pair of force transmitting elements 12b, Fig. 3, and a double wedge 12<c> slidable upon a support 12a, the wedge being jammed against its support by a force transmitted by one of the elements 12<b> singly but being free to slide when the lateral components of forces transmitted by both elements balance or substantially balance one another. The mechanical principle involved is developed in numerous modifications. In a locomotive crosshead providing automatic adjustment for wear, shoes 11<b> sliding in guideways 11<e> are loosely engaged by studs 11<a2> on the piston rod 11<a> and carry rollers resting on spring-pressed wooges 11<c>. The wedges can slide to take up slack due to wear, and are responsive to simultaneous pressure of the rollers, but they are unyielding in rsponse to the oblique thrust of the connecting rod 11<a>.
Patent GB-380995-A (GB)
Title: Improvements in or relating to automatic ignition control for internal combustion engines
IPC: F02P5/06
Filed: 1931-11-21
Abstract: 380,995. Ignition timing ; centrifugal governors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Nov. 21, 1931, No. 32321. Convention date, Dec. 13, 1930. Addition to 359,832. [Class 7 (iv).] In governors in which the centrifugal mass 6 has a long arm 8 bearing against a short arm 9 on the cam lever 11 and the arm 7 a short arm 12 bearing against a longer arm 13, the first stage of adjustment is opposed by an additional spring 50 pivoted to the plate 3 and bearing against the plate 3 and mass 7 at the points 52, 53. Either a leaf or a wire spring may be used, and it may come into action only after a certain degree of adjustment.
Patent GB-1172295-A (GB)
Title: Apparatus for Determining Frequency
Inventor: WILLIS JOHN
IPC: G01R23/10
Filed: 1967-07-13
Abstract: 1,172,295. Digital measurement of frequency. SOUTHERN INSTRUMENTS Ltd. 10 July, 1968 [13 July, 1967], No. 32339/67. Heading G4H. Apparatus for determining the frequency or period of an electric signal comprises a digital counter controlled by switching means so that during one period the counting circuit counts cycles or pulses from a reference frequency source and during another period the counter counts cycles or pulses of the input signal means being provided for ensuring that the two periods are equal, or bear a constant relationship to each other. In the form of Fig. 1 the switches S1, S2 first move from position 1 to position 2 so that, while reference frequency pulses from a crystal oscilator pass to counter 11, a negative current -VR is integrated in a capacitor C. When the counter is full and resets to zero it produces a pulse to step the switches to position 3. The unknown input frequency now passes to the counter 11 and a positive current + VR is applied to the integrator, to discharge the capacitor. This takes the same time as it took to charge and, when zero detector 14 gives an output, the switches step to position 4. The count in counter 11 then indicates the frequency of the input signal in comparison with the reference frequency. In another form the period of the unknown frequency is determined by first applying it to the counter until a given number of cycles have been counted, e.g. 1, 10, 100 &c. This time is then measured by applying the reference frequency to the counter for a second interval equal to the first.
Patent GB-971691-A (GB)
Title: Fluid applicator or dauber
IPC: A45D34/04
Filed: 1963-08-17
Abstract: 971,691. Pad applicators. G. SCHWARTZMAN. Aug. 17, 1963, No. 32620/63. Heading A4K. [Also in Divisions A5, B8 and F2] In a dauber for applying bootpolish, cosmetics or other liquids and having a sleeve 14 fitted into, or formed as part of, the neck 12 of a container, a spring 32, resiliently urging valve member 33 into the closed position, is formed integrally with the member 33, preferably from a synthetic resin such as polyethylene or polyurethane. The operating head 36 of the valve may project into a space otherwise filled by coarse polyurethane foam body 50. A cover having a ply 21 of a nylon knitted brushed fabric bonded or laminated with a ply 23 of coarse polyurethane foam is provided. In a modification, an annular strip of rubber-like material may be interposed between member 33 and the valve seat. As shown in Fig. 7, a ring 158 of rubber-like material presses on the upper rim of valve seat 128 to aid sealing. When the valve is to be opened, the ring 158 is irreversibly forced through the valve seating 128 and thereafter acts as a valve gasket.
Patent GB-176450-A (GB)
Title: A locking device
IPC: E05B37/12
Filed: 1921-05-20
Abstract: 176,450. Gilson, P. C. May 20, 1921. Guarding against unauthorized use.-A bolt A sliding in a hole drilled in a casing B is forked at one end to embrace a spoke in the steering wheel of an automobile. Its other end is milled to facilitate operation. The bolt A has projections which normally engage the circumferences of locking pins C', C<2>, &c. of a permutation mechanism, preventing its movement. When these pins are adjusted axially and circumferentially, notches or holes F<1>, F<2>, &c. in them register with the projections D<1>, D<2>, &c. on the bolt and allow it to be moved.
Patent GB-468064-A (GB)
Title: Improvements in air supply to carburettors of internal combustion engines for aircraft
IPC: B64D33/02
Filed: 1935-11-26
Abstract: 468,064. Spray carburetters. ELLOR, J. E. Nov. 26, 1935, No. 32746. [Class 7 (iii)] [Also in Group XXXIII] The air intake of a carburetter for an aircraft engine is provided with means for substituting in various proportions for a supply of cold air from the external air stream, heated air from the interior of a radiator tunnel. In the construction shown in Fig. 1, cooling-air passing through a tunnel B containing a liquid cooling radiator A or a vapour condenser, is discharged around a streamlined member D through which the air intake pipe C of a carburetter passes. Normally, cold air is drawn into the pipe C through an opening C<2> below the tunnel, but when a valve G is opened by hand or by a thermally sensitive device, air, heated by the radiator, passes through a slot F into the member D and enters the pipe C. A flap G<3> admits warm air, when desired, from the member D into the cockpit. In the construction shown in Fig. 5, the proportions of hot air, drawn through a branch H<2> opening into the radiator tunnel B, and cold air, drawn from branches H<3>, and supplied to two carburetters, are controlled by valves J. In the modification shown in Fig. 6, the cold air is supplied through a pipe K which passes through the radiator A, while the hot air is admitted behind the radiator when flaps K<2> are opened. The exit of the cooling-air from the tunnel is controlled by a flap L. Vanes M help the flow of air in the intake pipe through a right-angle.
Patent GB-1012812-A (GB)
Title: Platform for use in moving loads horizontally
Inventor: SWINNEY STANLEY
IPC: B60V1/00
Filed: 1962-06-20
Abstract: 1,012,812. Air cushion vehicles. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 18, 1963 [June 20, 1962], No. 23812/62. Heading B7K. A load-supporting platform comprises beams 11 connected by bridge members 13 to the undersurfaces of which are secured by sealing means a plurality annular inflatable members 14, e.g. motor vehicle inner tubes. A nozzle 15 in the plenum chamber formed by each tube is connected through piping 22, 23, control valves 19, 21 and reducing valve 17 to a compressed air cylinder 16 separate from or carried by the cylinder whereby supporting cushions of compressed air may be formed beneath each member 14. A compressor may be used instead of the cylinder 16.
Patent GB-1119701-A (GB)
Title: Guards for air intakes of jet engines
Inventor: LEWIS GORDON MANNS
IPC: F02C7/055
Filed: 1964-08-13
Abstract: 1,119,701. Gas turbine plant; jet propulsion plant. BRISTOL SIDDELEY ENGINES Ltd. Aug. 12, 1965 [Aug. 13, 1964], No.33072/64. Headings FIG and F1J. Damage to an aircraft jet-propulsion engine of gas turbine or ram-jet type caused by birds or other foreign objects entering an air intake 14 is prevented by knives 20, 22 which cut the objects into small pieces which can be ingested harmlessly. Each knife is of triangular form with an oblong root 24 and a front cutting edge 25 which is included to the direction of the adjacent air flow to improve its cutting action. Adjacent knives in each set are welded together along the abutting longer edges of the roots 24 to form an assembly which is then welded at the shorter edges of the roots to a surrounding flanged inner frame 26 to form a unit which is bolted to a flanged outer frame 27 surrounding an aperture in a wall 21 or 23 of the air intake. Although each set of blades extends only partially across the air intake, a bird missing the blades 20 and passing between them and the wall 23 almost certainly strikes the blades 22. The upstream set of blades may be mounted on the outside of the fuselage, in front of the air intake. In the case of an annular air intake, annular sets of blades may be used, one projecting inwards from the outer wall of the intake and the other projecting outwards from a centre body; one of these annular sets may instead be just in front of the intake. The blades of one set may be staggered with respect to the blades of the other set, looking downstream. Three sets may be provided. Where the duct has compound curvature, the blades may be inclined to the radical direction or even be twisted, so as to be parallel to the local air flow.
Patent GB-295885-A (GB)
Title: Improvements in carbonization plant
IPC: C10B29/04
Filed: 1927-12-07
Abstract: 295,885. Chamber Ovens, Ltd., (Pintsch & Dr. Otto Ges.). Dec. 7, 1927. Walls.-The end walls of a carbonizing plant are formed of a number of arched sections b, which distribute stresses due to expansion and contraction to supporting girders d. The sections are built between buck - stays a, against which the girders d at the upper end of the structure are resiliently pressed by spring-loaded tie-rods e. At the lower part of the structure, where movements due to expansion are not so pronounced, wooden pads are incorporated in the tie-members. The spaces between the arches and the main structure are filled in with rammed material.
Patent GB-998395-A (GB)
Title: Improvements in or relating to baling presses
Inventor: SCHONDUBE OTTO
IPC: B30B9/30
Filed: 1963-08-21
Abstract: 998,395. Baling presses. SCHWERMASCHINENBAU ERNST THALMANN VEB. Aug. 21, 1963, No. 33123/63. Heading B5F. A baling press comprises a plurality of press cases 3, 4 rotatable about a central column 13, an hydraulic cylinder 16 for operating holding- down devices 5 and an hydraulically operated plunger 1 having a pressure gauge 2 in its supply line for controlling the pressure of the plunger and thus the bale weight. The holding down devices 5 are mounted on shafts 7 to which are fixed levers 15 carrying rollers 8 engaged in slides 9, 9A operated by the cylinders 16. A timer controls the filling of the case 3 by a filling device (not shown) and the operation of the plunger 1 and cylinders 16. Final compression is applied by a press table 12.
Patent GB-838955-A (GB)
Title: An improved leg or support for stabilising and levelling caravans and for like purposes
IPC: B60S9/04
Filed: 1957-10-24
Abstract: 838,955. Rest bars. WILKINSON-COX, N. Dec. 2, 1958 [Oct. 24, 1957], No. 33201/57. Class 108(2) [Also in Group XXXI] An adjustable telescopic rest bar 8, 9, Fig. 4, for stabilizing a caravan &c. has one member 8 pivoted at 6 to the lower end of a depending bracket 1 and detachably connected by a pin 15 at the upper end so that it may be readily engaged or released by bending about the pivot 6. The member 9 has a pivoted foot 10 and is set to adjustable heights by a pin 12 inserted through selected holes 13. The pin 6 is arranged over dead - centre with the pivot 3 of the bracket 1 so that the leg remains in the supporting position under the weight of the caravan.
Patent GB-935034-A (GB)
Title: Electric drive of clocks and watches
IPC: G04C3/06
Filed: 1960-09-28
Abstract: 935,034. Clocks and watches. CHRONOTECHNA, NARODNI PODNIK. Sept. 28' 1960 [Sept. 28, 1959], No. 33235/60. Class 139. [Also in Group XL (c)] In an electric clock or watch, Fig. 1, the mechanical oscillator, e.g. a balance, carries an armature 1a of a magnetically soft material. The armature 1a swings through the air gap between the limbs 10, 11 of a ferromagnetic core of a transformer having two windings V 1 ,V 2  which are connected as shown to the maintaining circuit which includes batteries B 1 , B 2 , resistors R 1 , R 2 , R 3 , Rg, a transistor T and a capacitor C. When the batteries have been switched on the capacitor C, Fig. 3, is charged by a current I 1  to the voltage E 1  and the transistor base is biased to cut-off because of the voltage drops across the resistors R L , R G  and R 2 . The capacitor is now further charged by a current I 2  to a voltage greater than E 1  so that an electron flow I 3  flows towards the battery B 1  and the transistor base is biased in the forward direction to give an amplified current impulse in the collector circuit through the coil V 1  whereby the balance is impulsed. The transistor may be replaced by a valve E, Fig. 4. Either of the resistors R 1 , R 2  may be omitted and the resistor R G  may be replaced by a thermistor. In the modified circuit of Fig. 9, a germanium diode D introduces damping and prevents the generation of spontaneous oscillations. A variable resistor may be connected in series with the coil V 1  to allow adjustment of the amplitude of the mechanical vibrator.
Patent GB-924463-A (GB)
Title: Linear polyesters and their production
IPC: C08G64/02
Filed: 1961-09-18
Abstract: Linear polyesters, suitable for the manufacture of fibres, films and other shaped articles and having improved dyeing properties contain the residues of a dicarboxylic acid or carbonic acid and a bis-(hydroxyalkyl)-para-dioxane, alkylsubstituted para-dioxane or aryl-substituted paradioxane.  The dicarboxylic acid may be terephthalic, isophthalic, phthalic, oxalic, succinic, adipic, azelaic, sebacic, hexahydroterephthalic, hexahydroisophthalic, hexahydrophthalic, 1:4-dioxane - 2 : 5 - dicarboxylic, tetrahydrohydrofurane-2:5-dicarboxylic or pyridine-2:5-dicarboxylic acid, or a mixture of terephthalic and isophthalic or succinic acid. The polyesters may also contain up to 95 mole per cent of the residues of another glycol, e.g. ethylene-, propylene-, pentamethylene-, polyethylene- or polypropylene-glycols; alpha, alpha1-xylylene glycols; tetrahydrofurane-2:5-dimethanol or diethanol; or 1:3- or 1:4-cyclohexanedimethanol.  The polyesters are made by reacting the acids or their dialkyl esters with the glycol in the presence of the usual catalysts.  In examples polyesters are made by reacting (1) dimethyl terephthalate and para-dioxane-2:5-dimethanol; (2) dibutyl isophthalate and para-dioxane-2:5-dimethanol; (3) succinic anhydride and para-dioxane-2:5-diethanol; (4) diethyl carbonate and 3:6-dimethyl-para-dioxane-2:5-dimethanol; (5) dimethyl terephthalate, succinic anhydride and paradioxane-2:5-dimethanol; (6) dimethyl terephthalate, ethylene glycol and para-dioxane-2:5-dimethanol; (7) dimethyl terephthalate, trans1:4-cyclohexanedimethanol and para-dioxane2:5-dimethanol; (8) dimethyl terephthalate, 1:4-cyclohexanedimethanol (trans 70%, cis 30%) and para-dioxane-2:6-dimethanol.
Patent GB-383440-A (GB)
Title: Improvements in or relating to petroleum and heavy oil burners
IPC: F23D11/44
Filed: 1931-12-01
Abstract: 383,440. Liquid-fuel burners. SOC. ANON. LE CARBONE, 37, Rue de Paris, Gennevilliers, Seine, France. Dec. 1, 1931, No. 33336. Convention date, Jan. 16. Addition to 346,963. [Class 75 (i).] The activated carbon mass traversed by the liquid fuel as in the parent Specification is prepared from carbonized woven, entangled or felted fibres. Fig. 1 shows a vapour burner in which the fuel traverses an activated carbon mass consisting of a roll i<1> of woven fabric or wadding wound as a band on a rod i<2> which may also be of activated carbon. Fig. 2 shows a wick burner in which the wick consists of one or more turns of carbonized woven fabric or wadding n<1> wound on a tube p. The fabric may be secured between two concentric tubes to prevent the fuel from entering the fabric laterally. An ignition torch for starting heavy oil burners mav consist of forked or annular hollow body of perforated metal filled with an activated carbon mass prepared from woven fabric or wadding. Non-carbonizable threads may be woven in the fabric before carbonization to act as a reinforcement. The carbonized woven fabric may also be used instead of agglomerated carbon in the soldering or brazing lamp described in Specification 347,425.
Patent GB-300564-A (GB)
IPC: G01N3/32
Filed: 1928-11-14
Abstract: 300,564. Esau, A. Nov. 14, 1927, [Convention date]. Testing physical qualities of material. - Comprises a method of testing in which a specimen of the material is oscillated under a desired load, which is then disconnected, and the damping or fading away of the load amplitudes determined. A periodic force lasting until the moment for testing, or an impulse force is used. In the example shown in Fig. 1 the specimen is placed under tension and compression stresses, but the invention may be used for bending or torsion tests. The specimen S is fixed at one end to a large mass M1 and at the other end carries a small mass M2 which is excited to oscillation by an electromagnet E Sp preferably in the frequency of the natural frequency of the system M1, S, M2. A hole L in the mass M2 allows passage of a beam of light which with the aid of a lens causes an image of a mark m in the mass to be photographed on a moving film from which the vibrations may be studied.
Patent GB-851302-A (GB)
Title: Improvements in or relating to combined gas filters and silencers
IPC: F02M35/14
Filed: 1957-10-25
Abstract: 851,302. Internal combustion engine charge air filters and silencers. COOPERS MECHANICAL JOINTS Ltd., and STREETE, S. M. Oct. 20, 1958 [Oct. 25, 1957], No. 33444/57. Class 7(2). [Also in Group XXVIII] Silencing ducts 15, 16 extend oppositely around a filter casing 8 from inlets 19, 20 to spaced-apart ends 21, 22 directing the air into the casing 8 through slots of at least duct crosssection for passage through the annular pleatedpaper filter 1 to the engine inlet pipe (not shown) seating centrally in the casing bottom 10. Antiresonance apertures 22a connect the ducts 15, 16 to the interior of the casing 8. Specification 789,180 is referred to.
Patent GB-818701-A (GB)
Title: Improvements in or relating to control systems for aircraft propellers
Inventor: JACKSON ALFRED DENNIS
IPC: B64C11/32
Filed: 1956-11-01
Abstract: 818,701. Variable pitch propellers. ROTOL, Ltd. Oct. 29, 1957 [Nov. 1, 1956; Jan. 10, 1957; Feb. 20, 1957], Nos. 33448/56, 1071/57 and 5794/57. Class 114. In a multi-engined aircraft having gasturbine propeller engines, the propellers each including a constant speed unit, a control system for the propellers comprising for each propeller, a pitch stop which is operative in flight and which prevents the propeller fining off to an angle such that excessive windmilling speeds can occur in the event of failure of the constant speed unit of the propeller, sensing means for sensing when the propeller has fined off to a predetermined pitch at least approaching that set by said pitch stop, and control means for withdrawing said pitch stops, the control means is connected with the sensing means of the propellers to operate to withdraw the pitch stops of all the propellers when all the propellers have fined off to the predetermined pitch. The sensing means for each propeller comprises an electrical switch (10 in the embodiment shown) which is closed when the propeller is at and below said predetermined pitch, and the control means comprises solenoids 12, switches being connected in series with one another and the solenoids, and the solenoids being connected in parallel with one another, and energizable each to initiate the withdrawal of the pitch stop of one of the propellers e.g. by controlling a valve in a hydraulic circuit. A double pole manual switch 14 is provided to isolate the circuit from the electrical source 15 and place the withdrawal of the pitch stops entirely under the control of the pilot by closure of a double pole manual switch 13. Other embodiments include a warning light. Specification 818,611 is referred to.
Patent GB-466755-A (GB)
Title: Improvements relating to driving means of belt, chain and like conveyors
IPC: B65G23/00
Filed: 1935-12-03
Abstract: 466,755. Endless - belt conveyers. CAIRD, E. C., CHISHOLME, G. G., and CAIRD & CO., Ltd., F. P. Dec. 3, 1935, No. 33449. [Class 78 (i)] The driving drum 11 of an endless-belt or like conveyer 22 is rotatably mounted on the stator 8 of an electric motor which is housed within the drum and is geared thereto. The rotor shaft 10 projects into a casing 18 secured to one of the side frames 7 supporting the drum and carries a pinion 15 meshing with an internally toothed wheel 16 secured to a stub-shaft 17 which drives the drum 11 through a pinion 20 and internally toothed gear wheel 21 secured within the drum whereby two stages of reduction gear are provided between the motor and drum. Two driving drums each with an internal motor geared thereto may be provided to increase the contact area with the conveyer, or alternatively two driving drums both driven from one motor housed within one of them may be used.
Patent GB-176104-A (GB)
Title: An improved process of and apparatus for extracting essential oils and other volatile substances
IPC: C11B9/02
Filed: 1920-11-26
Abstract: 176,104. Usher, F. L., and Metcalfe, E. P. Nov. 26, 1920. Essential oils, extracting.-Essential oils and like volatile products are extracted from solid materials, such as sandal wood, by means of a heated gaseous vehicle, such as nitrogen or other inert gas, or an unsaturated vapour which is not condensed on cooling to separate the essential oil, or by means of steam which is condensed in such a way as to generate a further quantity of steam for use in the extraction. In using an inert gas, the gas is circulated in a closed circuit through a heater B, Fig. 1, extraction vessel C, heat-exchangers E, condenser D, and pump A, and back through the heatexchanger E and heater B to the vessel C. The heater may be formed as a jacket surrounding the vessel C and containing a steam coil or an electric heater. In using steam for the extraction, the steam is passed through an extraction vessel S, Fig. 3, and to a condenser E which forms a vacuum evaporator, for example of the Kestner climbing film type. The condensation of the steam and essential oil serve to generate steam at a lower pressure, which is compressed by a pump C and passed into the vessel S. The condensed water is separated from the essential oil in vessel O and may be passed into the well W to be evaporated in the condenser. A float-device v serves to maintain a definite level of water in the condenser.