baber/WOPTO huggingface dataset:
Patent GB-136055-A (GB)
Title: Improvements in or relating to Means for Loading Timber and the like.
Inventor: SPENCER GEORGE HOLMES
IPC: B65G67/00
Filed: 1919-03-17
Abstract: 136,055. Spencer, G. H., and Spencer, L. H. March 17, 1919. Vehicle fittings and attachments.- Relates to means for handling timber, metal beams, tubes, rods, and other material in long lengths, and more particularly to means' for unloading and loading such material from and into railway wagons. The material is supported during loading &c. by an horizontal roller 27 or a pair of horizontal rollers 32 mounted on a sleeve 18, which is slidably and rotatably mounted on a standard 14. The standard is clamped between the floor and the upper frame of the wagon door by a screw 16. The sleeve is supported by a split collar 21, which can be clamped to any part of the standard. Teeth on the upper part of the sleeve engage corresponding teeth on a collar 23 provided with a clamping screw 24 for securing it to the standard.
Patent GB-846999-A (GB)
Title: Improvements in or relating to electro-mechanical high frequency filters
Inventor: BACHE HARRY
IPC: H03H9/50
Filed: 1958-03-03
Abstract: 846,999. Electro-mechanical filters. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Nov. 10, 1958 [March 3, 1958], No. 6714/58. Class 40(8). Spurious frequencies in an electro-mechanical filter comprising a plurality of mechanical resonators linked by couplers are eliminated or substantially reduced by providing at least one resonator having a length of less than one half wavelength and having different cross-sections at different points along the direction of propagation of the mechanically vibrating energy. The filter shown is supported between end clamps 1 and 2 and comprises cylindrical resonators 6, 7, 8, 9, 10 and 11 of equal diameters, each n#/2 long at the  desired operating frequency, where n is any integer (including unity), linked by cylindrical couplers 15 each m#/4 long, where m is any odd integer (including unity), but whose diameters may vary. The drive and pick-up devices are similiar transducers each comprising a magneto-strictive member 3 and a dust iron shell 4 containing a coil  5. Three non-uniform resonators 12, 13 and 14, each in the form of a dumb-bell, are provided in the centre of the filter and are linked by two couplers 15 of smaller diameter than the other  couplers. Alternatively each non-uniform resonator may be in the form of an inverse dumb-bell, or barrel-shaped, or approximately hour-glass shaped (Figs. 2-4, not shown). The filter may alternatively comprise a plurality of discs vibrating in the flexural mode and coupled by a wire or wires fixed to the edges or centres of the discs, the direction of vibration being perpendicular to the flat surfaces of the discs. The non- uniform resonator is then a disc whose thickness varies either continuously or in one or more steps between the centre and the periphery.
Patent GB-1427971-A (GB)
Title: Electric switch and a movable contact element therefor
IPC: H01H13/12
Filed: 1973-02-12
Abstract: 1427971 Retractive switches; switch contacts WILD ROVER CORP 12 Feb 1973 6718/73 Heading H1N A retractive switch comprises an open-ended housing 22 closed at one end by a base 28 mounting fixed contacts 30, 32 and at the other end by an actuating element 24 and contains a movable contact element 26 having three integral resilient leg portions 26b, 26c, 26d which are maintained in compressive stress between the inner surface of the base and a protruberance 24c of the actuating element 24 when the switch is in an unactuated condition. The leg portions include respective feet portions 26e, 26f, 26g which are dimpled to reduce friction when the leg portions are flexed about attachment regions 26j, 26k, 26m and they exhibit polar symmetry about a generally circular central portion 26a by being equi-angularly spaced at 120 degrees with each leg portion extending arcuately to subtend an angle of approximately 90 degrees. Straight contact members 26h in the form of wires affixed to the central portion 26a either directly or via an intervening plate 26i, or comprising embossed portions of the central area are orientated to extend parallel to a line between the centre of 26a and one of the feet portions in order to avoid unbalanced movement of the contact element 26 or incomplete bridging of the fixed contacts 30, 32 when the switch is actuated by means of a force, in excess of the threshold value required to overcome the initial compressive stress of the contact element, is applied to the central portion 26a via the protuberance 24c of the actuating element 24. Representative force/ deflection characteristics are analysed with reference to diagram Fig. 6A (not shown). Alternative forms of leg portion construction for the beryllium copper contact element and various materials suitable for the contact members 26h are detailed.
Patent GB-212115-A (GB)
Title: Process and arrangement for treating heavy fuels in the carburettors of internal combustion engines
IPC: F02M1/00
Filed: 1923-03-09
Abstract: 212,115. Friz, M., and Bayerische Motoren Werke Akt.-Ges. March 9, 1923. Spray carburettors: vaporizers, external.- Heavy oil-e.g. paraffin, gas oil or crude oil or a tar distillate-is used in a spray carburettor by arranging a stream to form a froth by impinging on streams of other substances which mav be. gaseous-e.g. acetylene, marsh gas, or atmospheric or compresed air-or a liquid-e.g. petrol, benzol, alcohol or water. These streams issue from calibrated orifices ! and the froth which is formed in a closed pipe b passes through strainers k to the nozzle a. The resulting mixture is vaporized by passing through a bundle of tubes m surrounded by a liquid, such as oil from a tank p which is circulated by a pump o and heated either electrically or bv the exhaust. Its temperature may be regulated by adjusting the speed of the pump, or by a by-pass q having a valve r or by the cooling water of the engine.
Patent GB-124927-A (GB)
Title: Improvements in and relating to Elastic Fluid Turbines.
IPC: F01D9/04
Filed: 1918-04-24
Abstract: 124,927. British Thomson - Houston Co., (General Electric Co.). April 24, 1918. Nozzles.-Nozzle partitions 17, Fig. 3, having curved lips 18 and arms 19 are held in diagonallyextending slots 12, 15, Figs. 1 and 2, in two concentric rings 10, 11, the arms 19 being secured by rivets in recesses 13, 16 and covered by members 20, 23. The disks 23, 24 form the body of the diaphragm.
Patent GB-752821-A (GB)
Title: Improvement in properties of ethylene polymers
IPC: C08K5/20
Filed: 1954-03-09
Abstract: Splitting and cracking of polyethylene under stress in the presence of an organic polar liquid such as methanol, ethanol, acetone, acetic acid and ethyl acetate is prevented by incorporating therein at least 0.5 per cent of distearamide.  The ethylene distearamide may be incorporated by milling, and dyes, and antioxidants included.  The compositions may be used in the manufacture of cables.
Patent GB-908986-A (GB)
Title: Sulphur-containing dicarboxylic acids and derivatives thereof and a process for the manufacture of same
IPC: C07D339/06
Filed: 1961-02-24
Abstract: The invention comprises racemic and optically active compounds of the formula, <FORM:0908986/IV (b)/1> wherein R10 stands for a hydrogen atom or an alkyl group other than methyl when R0 is acetyl, and each R0 is a hydrogen atom or an alkyl group or an acyl group other than acetyl when R10 is methyl, or together for a methylene group which may contain an alkylene or aryl group or one or two alkyl groups as substituents, and the anhydrides of the carboxylic acid compounds, specifically DL-2,3-dimercapto-succinic, D-2,3-dimercaptosuccinic, and L-2,3-dimercapto-succinic acids and 2,3-diacetylthiosuccinic acid anhydride, and a process for the preparation of compounds of the above formula in which R10 is a hydrogen or an alkyl group and R0 is a hydrogen or an alkyl or acyl group or the R's together stand for a methylene group which may contain an alkylene or aryl group or one or two alkyl groups as substituents and the anhydrides of carboxylic acids, by reacting thioacetic acid with an acetylene-dicarboxylic acid and either dehydrating or hydrolysing the resulting 2,3-diacetylmercapto-succinic acid and where required esterifying or etherifying the resulting 2,3-dimercapto-succinic acid and/or condensing it with the appropriate aldehyde or ketone, or esterifying the 2,3-diacetylmercapto-succinic acid and isolating the DL-form and if desired resolving the racemic form into the optically active forms.  The addition reaction may be carried out in an inert solvent and the hydrolysis in an acidic or basic media.  The 2,3-dimercapto-succinic acid or alkyl ester may be condensed with an alkanol or benzaldehyde or substituted benzaldehyde or an alkanone or cycloalkanone.  The products have antifungal properties and may be used as plant protecting agents in solvents, as emulsions or as dusting powders with a compatible carrier.  They are also suitable in the formation of metal complexes e.g. with trivalent antimony compounds to form complexes useful in the treatment of Schistosoma mansoni infections.
Patent GB-392700-A (GB)
Title: Improvements in or relating to multiple expansion reciprocating steam engines
IPC: F01K7/02
Filed: 1932-03-08
Abstract: 392,700. Reciprocating steam-engines. AKTIEBOLAGET GOTAVERKEN, Gothenburg, Sweden. March 8, 1932, No. 6975. Convention date, Nov. 11, 1931. [Class 122 (iii).] In a multiple-expansion reciprocating steam engine wherein the exhaust steam is utilized in a low-pressure turbine or the like, as for example in Specifications 370,987 and 370,990, the steam between the high pressure cylinder 1 and the intermediate cylinder 2 is compressed in a fan or turbo compresser 13, &c., and the steam between the intermediate-pressure cylinder 2 and the low-pressure cylinder 3, or between two intermediate-pressure cylinders, is superheated in a heater 30 through which it is circulated by a pump 14. The elements 13, 14 are driven by a turbine 10 operated by the exhaust of the low-pressure cylinder 3. The two ends of the pipe 15 connected to the element 13 are connected to the opposite sides of the receiver 7 ; similarly the pipes 16 connected to element 14 are connected to the receiver 8. Valves 25 in partition 19 connect the cylinders 1, 2 directly, and may be opened manually or kept closed by springs. Throttle valves 26 are arranged in pipes 15, 16 and a valve 28 permits the low-pressure cylinder 3 to exhaust direct to the condenser. The receiver 8 may be divided into two chambers 22, 24 by a wall 20 with spring-pressed valves 25<1>. Preferably the receiver 8 is not subdivided. The pipe 16 opens into the receiver 8 adjacent the valve 6. The inlet may be arranged in the upper portion, and the outlet in the lower portion of the receiver. The valve 26 controls the steam quantity conveyed by the pump 14. The valves 25, 25<1> enable the engine to operate without increasing the output by compression and superheating. These valves may be replaced by pipes byepassing the pumps 13, 14, which may be rotary pumps or gear-driven reciprocating-pumps. Reference has been directed by the Comptroller to Specifications 370,987 and 370,990.
Patent GB-626388-A (GB)
Title: Improvements in and relating to anti-aircraft defence equipment firing rocket projectiles
IPC: F41F1/08
Filed: 1947-03-13
Abstract: 626,388. Rocket-firing equipment. ETUDES ET CONTROLES INDUSTRIELS. March 13, 1947, No. 6990. Convention date, Dec. 14, 1944. [Classes 92 (i) and 92 (ii)] In a rocket-firing anti-aircraft defence system for protecting convoys against low flying aircraft, groups of rockets 1, 2, 3, 4, 5 are inclined at differing and fixed elevations and are mounted on a vehicle. Firing of a particular one of the groups is effected by a dummy rifle 6, carrying at one end pairs of stadia wires 23, 24 and rotating a contact-carrying plate 7 when elevated. The stadia wires are automatically adjusted by a cam 20 which is caused to slide along the top of the gun by a crank mechanism 16 as the gun is elevated. When the target is calipered by one or other of the pairs of stadia wires according to the type of aircraft, the trigger 9 is pulled and the plate 7 is so positioned as to complete circuits to ignite electrically the correct group of rockets to hit the target. Further and smaller groups of rockets outwardly inclined are provided at the sides of the main groups to cope with aircraft flying on a line parallel to and not directly over the convoy. These groups of rockets are brought into action by electrical contacts mounted between the plates 8 and 8<SP>1</SP>, one of which is fixed and the other rotates with the gun. It is stated that to take account of the apparent reduction of wing span of the aircraft in this case, the cam must be of threedimensional form.
Patent GB-419018-A (GB)
Title: Improvements in supporting frames for typewriting machines
IPC: B41J29/02
Filed: 1934-03-05
Abstract: 419,018. Typewriters. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Dowd, B. J. ; 385, North Quaker Lane, West Hartford, Connecticut, U.S.A.) March 5, 1934, No. 6991. Convention date, March 17, 1933. [Class 100 (iv).] Type-lever machines; shock-absorbing supports.-An open frame detachably secured to the bottom of the typewriter is provided with a removable plate for excluding dust from the typewriter ; the open frame may carry shockabsorbing supports. In the construction shown in Figs. 1 and 2, channel-members 5, arranged beneath the sides B of the typewriter and secured to the feet C thereof by means of screws 13, are provided with cups 11, 8 for securing rubber feet 12 and pads 9. A dustexcluding plate 20 is detachably secured by means of lugs 23 adapted to engage headed screws 18 on the channel-members. The dustexcluding plate is formed with corrugations 21 and flanges 22, and may be dished. The channel-members may be secured to a table 16 by means of screws 15. Instead of separate channel-members, a frame consisting of L- shaped sides connected by cross-pieces may be employed.
Patent GB-483106-A (GB)
Title: A new or improved method of and apparatus for molding products from wet pulp or similar fibrous material
IPC: D21J7/00
Filed: 1937-03-10
Abstract: 483,106. Moulding pulp &c. STEVENS, A. H. (Swift, jun., Inc., G. W.) March 10, 1937, No. 7066. [Class 87 (ii)] Articles such as egg containers are moulded from a pulp suspension containing 2 per cent by weight of pulp by dipping a mould 1 formed of a rigid porous body of stone-like material into a pulp vat 7 and applying suction to the rear face of the mould through a chamber 4. The mould is formed from a substance having the characteristics of Filtros ; it may be formed of refractorv material such as silica fused together with feldspar or clay. The mould is formed with a flange 8 which is retained between a clamping plate 10 and a ledge 9 on the chamber 4. To reduce the thickness of the pulp deposit over parts of the article, corresponding portions of the mould may be formed of finer grains or of greater thickness. The mould may be formed with receptacle-shaping portions divided by grooves having deep conical recesses at their intersections. The pulp deposit may be finished by couching and removed by pressure pulsation in the chamber 4. To clean the mould, it may be heated and clogging matter then blown out.
Patent GB-846251-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F39/12
Filed: 1959-03-02
Abstract: 846,251. Washing-machines. LESPINASSE, L. March 2, 1959 [March 3, 1958], No. 7111/59. Class 138 (2). A washing machine comprises a base 1, a chassis 2 for supporting drive mechanism, and a casing 3 supporting a tub (not shown), the chassis 2 being at least partly withdrawable from the machine without separating the casing from the base. The chassis may be supported on ball or roller bearings for withdrawal from the front, rear or side of the machine. The casing 3 may be an inner casing of the machine.
Patent GB-101675-A (GB)
Title: Improved Connection for Applying Pipes to Ships' Holds and the like.
Inventor: MADGE FRANCIS HERBERT
IPC: A62C3/10
Filed: 1916-05-19
Abstract: 101,675. Madge, F. H. May 19, 1916. Connexions for steampipe mains fitted to decks, bulkheads, &c. for fire-extinguishing.- Connexions to which steam-pipe unions are attached for extinguishing fires in ships' holds are each formed of a circular wooden plug 2 fitted into a hole in the deck, bulkhead, &c. and carrying a pipe 3 having a threaded outer end 4. A ring 9 secures the pipe 3 in the plug 2.
Patent GB-725344-A (GB)
Title: Apparatus for the electrical precipitation of particles suspended in gases
IPC: B03C3/06
Filed: 1953-03-16
Abstract: 725,344. Electrostatic filters. AIR PREHEATER CORPORATION. March 16, 1953 [March 27, 1952], No. 7160/53. Class 39 (1). In an electrostatic precipitator of the type comprising a bank of tubular collecting electrodes 24 each containing a central discharge electrode 17, the discharge electrodes are supported top and bottom by grid structures 14, 19 of the same crosssection as the bank of collecting electrodes. Each discharge electrode is supported and centred by spiders 25 secured in the passages of the grid structures corresponding to the respective tubular collecting electrodes. Tapered down sections 17a of the discharge electrodes extend into central openings of the spiders. The grid structures are supported from the bank of collecting electrodes by upper and lower cylindrical insulators 28, 28a. The discharge electrodes are provided at their lower ends with ionizing washers 18; the upper portions 17 are non-discharging. The collecting electrodes are hexagonal in cross-section.
Patent GB-1168694-A (GB)
Title: Fluid-Pressure Operated Gun.
Inventor: YOO HYO MIN
IPC: F41B11/54
Filed: 1967-02-15
Abstract: 1,168,694. Fluid pressure guns. H. M. YOO. 15 Feb., 1967, No. 7180/67. Heading F3C. A fluid-pressure gun comprises a barrel 14 supported on a frame 12, a housing 20 for containing a fluid under pressure, a removably mounted, rotary magazine 98 and an indexing means therefor. The barrel 14 and housing 20 are connectible by a passage 84 which is normally closed by a spring-loaded valve member 82. A trigger mechanism 42 is provided and comprises a trigger 48 and a spring-loaded hammer 54 having a spring-loaded, triggerengaging pawl 58 pivotally mounted thereon. Actuation of the trigger 48 urges the hammer 54 against its spring loading 66 until the pawl 58 slips from the trigger whence the hammer 54 is urged forwardly to strike a stem 86 of the valve member 82 and allow a pulse of compressed gas to flow through the passage 84 and magazine 98 to the barrel. The valve member 82 seats quickly again because, in the static state of the hammer 54 the spring loading of the valve member 82 is greater than the spring loading of the hammer 54. Fluid is compressed in the housing 20 by a piston assembly (Fig. 1, not shown). The magazine 98 is mounted in the gun by means of two members which are spring-loaded into recess 112, 114 in the frame 12 from the magazine or are spring-loaded into recesses in the magazine. The magazine is rotated by an arm 72 having a lost motion connection with the trigger 48 and co-operating with the upper surface of the reduced portion 102 of a magazine chamber when the trigger is actuated. A further arm pivoted on the trigger 48 co operates also with a reduced portion of a chamber when the arm 72 has indexed the magazine through one part revolution to terminate movement of the magazine, the next chamber being then aligned with the barrel (Figs. 4, 5, not shown). In a further embodiment the gun comprises a simulated bolt operated gun in which the part which strikes the valve stem consists of a spring- loaded plunger. The plunger is cocked by a bolt actuator and held in the cocked position by a projection on the trigger (Figs. 8, 9, not shown). The magazine indexing means comprises a pivoted lever assembly, one lever co-operating with the plunger and another with a chamber of the magazine. A silencer having a plurality of baffles and an exit port into the housing 20 may be provided at the forward end of the barrel (Fig. 7, not shown). Also a tubular foresight may be provided (Figs. 1, 2, 7, not shown).
Patent GB-104097-A (GB)
Title: Improvements in Boat Launching Devices
Inventor: LUCKHURST ALLEN EDWARD JAMES
IPC: B63B23/18
Filed: 1916-05-23
Abstract: 104,097. Luckhurst, A. E. J. May 23, 1916. Boat raising and lowering gear; davits.-Boatlaunching apparatus comprises a closed casing containing worm gearing for rotating the davit and prevented from rotating with the davit, and hoists for raising and lowering the boat. A two-part worm-wheel 8 fixed to the davit 6 is driven by a worm 20 on a shaft 19 having a spur-wheel 21 in gear with a spur-wheel 22 on the shaft 23 fitted with a handle 24. A third shaft 25, passed through a slot 26 in a lug 27 mounted rotatably on the pedestal 28, prevents the casing 12 from being rotated when the davit 6 is turned. The winches 30 are placed well behind the stowed boats, and the falls 33 pass from the drum 32 to the boats, as shown.
Patent GB-851958-A (GB)
Title: Improvements in or relating to direction finding radio installations
IPC: G01S5/00
Filed: 1959-03-03
Abstract: 851,958. Radio position-finding. TELEFUNKEN G.m.b.H. March 3, 1959 [March 4, 1958], No. 7330/59. Class 40(7). [Also in Group XXXVI] A computer provides output voltages dependent on the co-ordinates of a transmitter from sine and cosine input components of directionally received voltages of at least two spaced radio direction-finders and the output voltages feed a display. A,B are twin-channel direction-finders (D.F.s), with geographical co-ordinates A x , A y  and b x , b y  and the bearings of transmitter X(X o , Y o ) from them are α, # respectively. D.C. inputs A<SP>1</SP> cos α, A<SP>1</SP> sin α to terminals, 1 2 are provided from D.F.A, B<SP>1</SP>cos #, B<SP>1</SP>sin # to 3, 4 from D.F.B and a voltage U locally. Adjustable resistors 15-18 provide outputs representing a x , b y , a y , b x  respectively and it is demonstrated that multipliers 5-14, summing units 19-23 and dividers 24, 25 yields voltages proportional to X o , Y o  at terminals 27, 26 (see Group XXXVI); these voltages are used to position a cathoderay tube beam to display the transmitter's location. The scale of the display is adjustable by resistor 28. More than two D.F.s may be used, e.g. A,B,C, and the bearing input voltage combinations AB, BC, CA, AB - and corresponding D.F. co-ordinate data a x , dy - are switched into circuit sequentially; the display will in general be a polygon from which the operator judges the most probable transmitter location. Alternatively the computer output voltages may be averaged to give a single point display. The invention is applicable where earth curvature cannot be neglected, two display cathode-ray tubes being employed covering the earth's surface in two halves, Fig. 3 (not shown).