baber/WOPTO huggingface dataset:
Patent GB-631797-A (GB)
Title: Improvements in or relating to air-guns and the like
IPC: F41B11/55
Filed: 1946-03-08
Abstract: 631,797. Air-guns. KAPSA, L. V. March 8, 1946, No. 7252. Convention date, Aug. 25, 1945. [Class 119] In an air-gun having a compression cylinder surrounding the barrel 1 and a piston 8 slidably mounted on the barrel 1 in the cylinder, pellets being fed from a magazine into the barrel by a pusher 10, the pusher is so shaped that with the rear of the barrel it forms an outlet from the compression cylinder to the barrel which is an annular divergent channel 11, the cross-sectional area of which can be varied by adjustment of the barrel. The muzzle end 2 of the barrel 1 of an air-gun of pistol shape is externally threaded to screw into the body 4 which forms the compression cylinder. The free end of the barrel is supported in the head 9 of the piston 8. The channel 11 between the tip of the pusher 10 and the free end of the barrel can be varied by rotation of the barrel by the screwed muzzle end 2. A cocking lever 12 linked to the body is secured to the lock 5 by a spring-loaded catch 13. Pivoted to the lever 12 is a rod 14 having an enlarged end 15 embracing the body and pivoted to struts 16 guided in slots in the body 4 and engaging with a flange on the piston 8 to push the piston against the action of its spring 17 during the cocking operation until a sear 19 engages with a collar 18 on the piston. A leather collar 20 is fastened by a cap 21 to the piston head 9 and in the forward position abuts against an elastic buffer 22 on the lock 5. The sear 19 has its free end engaging in a safety-catch 24. On pulling the trigger 25 a tensioning member 26 is projected against the catch 19 to release the piston 8 and set the weapon in operation. The pusher 10 is screwed into a carrier 27 mounted on rods 28 supported in a double bearing 29. Threaded on the rods 28 are springs 30 controlling the recoil movement of the pusher 10, which is brought about by tongues 31 on the free ends of the rod 28 engaging with a flange on the piston 8. A locking lever 32 is provided at one side of the bearing 29. Various modifications of the barrel, cocking lever and arrangement of the pusher are described. The cocking lever may be extended forwardly and terminated in a handle constructed as a silencer. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 631,862 and modifications of the trigger mechanism shown in Figs. 16 and 17 (Cancelled). In the first modification, a link 41 pivoted on the trigger 42 passes through the sear and has an inclined surface 44 which brings the sear 40 out of engagement with the piston. In the second modification, a pushing link 41, journalled to the trigger 42, is inserted in a forked sear 40 and has a lug acting on an inclined surface 44 of the sear to disengage it from the piston. This subject-matter does not appear in the Specification as accepted.
Patent GB-773098-A (GB)
Title: Improvements in or relating to transport vehicles and load carriers therefor
IPC: B60P1/64
Filed: 1955-03-11
Abstract: 773,098. Vehicles with removable bodies. GRINNDAL, L. March 11, 1955, No. 7261/55. Class 78 (4). One end or side of a load carrier 1 is detached from the chassis 5 of its carrier vehicle by tipping the load carrier 1 about the opposite edge or side and then extending legs 41 to engage the ground before retracting the tipping means 20 which is mounted centrally so that it may also tip the load carrier in the opposite direction. In the construction illustrated the rear of the load carrier 1 is disengaged from the vehicle in this way and the vehicle is then driven away so that a pair of wheels 7 on the load carrier run over tracks 6 on the chassis 5 and down ramps 11 to deposit legs 31 on the ground. The axle 10 of the wheels 7 is normally locked to the chassis.by slotted brackets 24 swung about vertical posts 25 by a linkage controlled by a handle 33 in the driver's cab. When however the axles 10 are released and a bar 9 joining the upper parts 4<SP>1</SP> of the telescoping rear legs is locked in a hooked bracket 8 on the chassis the ram 20 which normally serves to tip the load carrier 1 about the axles 10 serves to tip it about the bar 9 to discharge material it carries. As the vehicle is backed beneath the load carrier 1 to load it on to the vehicle the load carrier is aligned with the vehicle by converging vertical flanges on the ramps 11, the horizontal flanges of which are suitably extended. A further device ensures that the rear of the load carrier is also moved into correct alignment with the tracks 6.
Patent GB-1433281-A (GB)
Title: Machine for filling and closing valved bags of thermoplastic  material
IPC: B65B61/24
Filed: 1974-02-18
Abstract: 1433281 Filling and closing valved bags WINDMOLLER & HOLSCHER 18 Feb 1974 [2 March 1973] 7297/74 Heading B8C [Also in Division B5] In a valved bag filling and closing machine in which bags are pushed on to down pipes 2, 3 and retained during filling by means 8, a closing station is provided at a level between the down pipes and a discharge conveyer 14, and has a compartment for each down pipe. Each bag is guided by plates 10, 11 into a compartment which has welding jaws 18, 19 carried by a pivoted lever 24, or a glueing or clipping device, or a spatula for tucking the valve inwardly. A discharge flap 13 of adjustable height releases a closed bag. The down pipes and closing station may be rotatable about a shaft 1. Alternatively the apparatus may be stationary and with the down pipes arranged in a row. A ramp or strippers may prevent bags falling on top of one another.
Patent GB-1025135-A (GB)
Title: Memory array
IPC: G11C8/02
Filed: 1965-02-19
Abstract: 1,025,135. Circuits employing bi-stable magnetic elements. RADIO CORPORATION OF AMERICA. Feb. 19, 1965 [March 5, 1964], No. 7352/65. Heading H3B. [Also in Division G4] In an arrangement for selecting a word line in a magnetic core matrix memory, each word line such as L 11  is connected at one end to a charge storage diode such as d 11 , the other end of the word line being connected to the collector of a transistor such as T 11 . The charge storage diodes d 11 -d 22  are connected to a common bus z. In operation, a word is read out destructively by selecting a transistor T 11- T 22  by applying appropriate voltages to the row and column lines connected to its emitter and base respectively thereby causing a read pulse to flow along the selected word line. The word read-out is detected by sense windings 10 only one of which is shown. The charge storage diode of the selected word line now stores a charge so that the subsequent application of a write pulse from a driver W to the common bus z is effective in only the selected word line to restore the data read-out or write new data in, in conjunction with appropriate voltages on digit drivers such as DD. The arrangement has the advantage that word selection voltages are isolated from all word lines except the selected word line.
Patent GB-689940-A (GB)
Title: Improvements in and relating to typewriter cases
IPC: B41J29/13
Filed: 1951-03-30
Abstract: 689,940. Portmanteaux. AUG. BIRCHMEIER'S SOHNE. March 30, 1951 [May. 6, 1950], No. 7429/51. Class 133 A case for typewriters has rigid side walls 1, 2 joined together by an outer shell of flexible material secured to the edges of the walls 1, 2 and consisting of a piece 3 forming part of the front, and a longer piece 4 forming the base, which has a second layer 5, the rear wall, the lid 6 and a flap 7 carrying a fastener 8 which engages in a loop 9 on the front wall. The lid carries a handle 10 and the case interior is divided by a partition 11 having a flap 12 which can be closed by pressstuds 13 on the front wall 3 to form a compartment for stationery &c.
Patent GB-641757-A (GB)
Title: Improvements in or relating to apparatus for measuring the thickness of materials
IPC: G01N23/16
Filed: 1948-03-11
Abstract: 641,757. Thermionic valve ammeters. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 11, 1948, No. 7460. Convention date, April 4, 1947. [Class 37] [Also in Groups XL (b) and XL (c)] Apparatus for measuring the thickness of material comprises a feedback amplifier for measuring the current derived from an ionization chamber 15 fed through a resistance 73 which is connected to the cathode circuit of the output valve of the amplifier, so that the input voltage is the resultant of that due to the ion current in the chamber, and the output current of the amplifier. The difference in output between two such amplifiers is determined by a meter 105 connected between the two cathode circuits, Fig. 1, or the output of a single amplifier may be measured, Fig. 2.
Patent GB-1270742-A (GB)
Title: Piperazine estrone sulfate process
IPC: C07J43/00
Filed: 1970-02-17
Abstract: 1,270,742. Preparation of piperazine estrone sulphate. ABBOTT LABORATORIES. 17 Feb., 1970 [24 March, 1969], No. 7663/70. Heading C2U. Piperazine estrone sulphate is prepared by contacting sulphurtrioxide-dimethyl formamide complex with estrone in dimethylformamide and in the substantial absence of water at a temperature not exceeding 45‹ C. and then adding piperazine. Preferably sulphur trioxide is used in an amount which is substantially equimolar or in a slight excess with respect to estrone, piperazine is used in an amount which is from 2-20% in excess of an equimolar amount with respect to estrone, and the complex is dissolved in dimethyl formamide in a concentration of 0À1-2À0 moles per litre. The product may be precipitated from the reaction solution, preferably after removal of piperazine sulphate by filtration, by addition of ether, preferably used in an amount of 1À5-2À5 times the volume of the solution including any wash liquors. The product may be recrystallized from methanol containing 10% by weight of piperazine and 1-2% of water.
Patent GB-135746-A (GB)
Title: Improvements in Gramophones.
Inventor: ECCLES JOHN RALPH
IPC: G11B3/10
Filed: 1919-03-27
Abstract: 135,746. Eccles, J. R., (trading as Gramophone Components). March 27, 1919. Tone-arm joints.-Relates to juints for connecting the tone-arm to a fixed bracket, of the kind comprising a spherical bearing 2 between the upwardly bent end of the tone-arm 1 and the tubular portion 3 of the bracket 4, and a fixed vertical pin 9 bearing in a slot 6 in the underside of the tonearm, and consists in forming the pin 9 with an end portion 10 of small diameter and a stem of larger diameter, and in providing stops 7 at the ends of the slot which engage the stem of the pin at the limits of the vertical movement of the tone-arm. The slot 6 is of the same width as the narrow portion 10 of the pin and is cut through a lug 5 on the tone-arm. The pin 9 is adjustable vertically and is locked by a grub-screw 8, or is itself threaded into the bracket 4 and locked by a nut. The invention may be used in conjunction with the apparatus described in Specification 131,818.
Patent GB-127851-A (GB)
Title: Improvements in or relating to Bullets.
Inventor: HADFIELD ROBERT ABBOTT
IPC: F42B12/06
Filed: 1917-05-29
Abstract: 127,851. Hadfield, Sis R. A., Main, S. A., and Burnham, T. H. May 29, 1917. Projectiles.-Relates to armour-piercing bullets comprising a steel envelope, a hard steel core fitting the forward part of the envelope, and a rear plug of heavy metal. According to the invention, the core, made with an original point, is provided with a hardened steel cap. In the bullet shown in Fig. 1, this cap e is placed between the steel envelope a and the steel core b, an air space d being left. Fig. 2 shows a modification in which the envelope a is thickened at its front end a<1> and hardened to form the cap. Another form is shown in Fig. 3. A further modification is also shown in the Specification, in which the cap-like head a<1> is flat and of very small axial thickness. An airdeflector f, Figs. 1 and 3, may be provided, and may be filled with air or some light substance such as cork. The ogival point of the steel core b is preferably made somewhat blunt, and the front end of the core may be made separate from the remainder.
Patent GB-163286-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B17/12
Filed: 1921-03-10
Abstract: 163,286. Jansing, J. May 12, 1920, [Convention date]. Sectional boilers.-A large water-space steam generator comprises a plurality of boiler sections a, b, c, d provided with corner connecting members o so as to form a trapezoid-shaped ring with an inclined front tube a. The tube b is preferably of greater diameter than the tube d. In one arrangement three such trapezoidal elements are each fitted with a connection to a common steam-drum n. The path of the combustion gases from the grate, around the brick vaults f, g and partition wall to the flue i is indicated by arrows. The circulation due to the lower part of a being the hottest zone is increased by arranging the feed-inlet at k. A superheater may be arranged between the tubes a, c, and a separate mud basin may be provided with a tube connection to the section d. The ring-shaped elements of equal size may be kept in stock so that a boiler of any desired capacity may be produced.
Patent GB-198817-A (GB)
Title: Improved ceramic material and manufacture thereof
IPC: C04B33/02
Filed: 1922-03-18
Abstract: 198,817. Green, W. March 18, 1922. Pottery materials.-A ceramic material is made by incorporating hard porcelain ingredients containing potash with a sintered irreducible oxide such as pure alumina or zirconia of a high melting point. The composition is fired at a high temperature to produce a hard tough product having a low electric conductivity and a low porosity. The composition may consist of alumina, potash, felspar, china clay, and ground flint. Cores which resist the action of liquid or gaseous mercury may be made from the composition.
Patent GB-1397191-A (GB)
Title: Composition for treating steel
IPC: C21C7/076
Filed: 1973-02-19
Abstract: 1397191 Flux for treating steel AIKOH CO Ltd 19 Feb 1973 [28 Feb 1972] 8038/73 Heading C7M A composition for adding to molten steel during tapping or ingot making comprises 2-40% LiF, 60-98% NaF and 0-38% CaF 2  , and has a melting point between 600-950C. In addition, the composition may include not more than 3% K 2 TiF 6  and/or not more than 3% CeF 3 , which may be replaced by other rare earth metal fluorides. The composition may be in the form of powder, granules, or briquettes. Several examples are given of suitable compositions.
Patent GB-209644-A (GB)
Title: Improvements in belts, bands and the like
IPC: A44B11/00
Filed: 1923-03-21
Abstract: 209,644. Walker, Ltd., T., and Walker, G. T. March 21, 1923. Belts; garters; straps and bands.-In belts, braces, garters, &c. of the kind including in their length coiled springs 3 or elastic strands stretching between metal loops 4 and backed by webbing 5 to limit expansion, metal fasteners 6, 10 are employed to attach both the loops 4 and the respective end's of the webbing 5 to the buckle or other fitting 2 and to the belt &c. 1. The fasteners are folded through the loops 4 and clinched at one end to the buckle or belt and at the other end to the webbing 5. Both fasteners have teeth 8, 12 to engage the webbing, and the fastener 10 has opposed teeth 14, 15 to grip the material of the belt &c.
Patent GB-717717-A (GB)
Title: Improvements in or relating to aeroplane propeller
IPC: B64C11/00
Filed: 1952-03-31
Abstract: 717,717. Aeroplane propellers. KAMMANDEL, H.J. March 31, 1952, No. 8104/52. Class 114 An aeroplane propeller comprises an aerofoil blade spaced from, and revolvable in a plane perpendicular to, the axis of rotation of the propeller, mechanism for maintaining the span axis of the blade in a horizontal position in all rotary positions of the same, and means for causing the blade to rock about an axis at right angles to the axis of rotation whereby at its top and bottom positions the aerofoil blade will have its chordline perpendicular to the plane of rotation and in the other positions the chordline will be inclined to the plane of rotation. The propeller comprises a plurality of aerofoils 20-23 rotatably mounted on spokes 16-19 radiating from a propeller hub 34 driven by the engine. Each aerofoil is rotated about its own axis during the rotation of the propeller by epicyclic gearing 35, 36, Fig. 4, bevel gears 38, 39 and a shaft 40 so that the span axes of the aerofoils always lie in a horizontal plane. Each aerofoil comprises a central portion 31 from each side of which projects a horizontal transverse shaft 50 carrying an aerofoil blade which can rock about the shaft 50 but is normally biased by a spring to lie in a horizontal plane at right angles to the shaft 50. Before the propeller attains a predetermined rotational speed the shaft 50 is prevented from rotating and as the propeller rotates each aerofoil blade is deflected. during its upward and downward motion by the unbalanced air pressure acting on its surfaces as shown in Fig. 15, thus giving a combined lifting effect and an axial thrust to the aeroplane. When the propeller speed attains a predetermined value a combined cam and rack-and-pinion mechanism, disposed in the central portion 31, is brought into operation by a speed governor 76 which mechanism rocks the shaft 50 and hence 'the aerofoil blade through a predetermined angle during the propeller rotation. The spokes 16-19 are preferably enclosed in casings shaped to produce a normal airscrew effect which assists the propulsion effect of the aerofoils. Cables 30 are attached to each aerofoil to take the centrifugal force. In another embodiment the mechanism for positively rocking the aerofoil blades is omitted and the epicyclic and bevel gearing. for maintaining the span axes of the aerofoils horizontal, is replaced by a chain and sprocket drive.
Patent GB-957384-A (GB)
Title: Improvements in or relating to carbon microphone capsules and more particularly to carbon microphone capsules having a carbon chamber protected against dampness
IPC: H04R21/02
Filed: 1962-03-02
Abstract: 957,384. Carbon microphones. SIEMENS & HALSKE A.G. March 2, 1962 [March 2, 1961], No. 8126/62. Heading H4J. In a carbon microphone capsule, Fig. 1, in which a part 6 of the wall of the carbon chamber is composed of air permeable material, e.g. silk, a damp proof foil 9, of e.g. thermoplastic material, seals the chamber with respect to   amp but allows the air pressure in the chamber to equalize with the external pressure by distortion of the foil, without the foil transmitting any force to the diaphragm 1. The inner and outer edges of the foil and the silk disc 6 may be heat sealed together, Fig. 2 (not shown). The stationary electrode 4 of the microphone is insulated from the transducer housing by insulating material 8.
Patent GB-1044626-A (GB)
Title: Improvements in dispensing heads for pressurised aerosol dispensing containers
Inventor: FOWLER FRANK
IPC: A61M15/00
Filed: 1962-03-02
Abstract: 1,044,626. Pressurized dispensing containers. BENGER LABORATORIES Ltd. April 17, 1963 [March 2, 1962; May 12, 1962], Nos. 8178/62 and 18327/62. Heading FIR. [Also in Division A5] An aerosol dispensing container is fitted with a dispensing tube 6 for discharging into the mouth. The tube 6 has a portion 10 forming an outlet nozzle and engageable with the discharge valve member 15, and a portion 8 having a lip 9 slidably engaging the closure 2. The tube 6 is closed when not in use by a cap 28 having forked ends 32 (Fig. 2, not shown), disposed on each side of the member 15 and engageable with the top of the closure 2 to hold the tube 6 clear of the end of valve member 15 and so allow the valve to seat fully and prevent actuation of the valve. In operation with the device inverted and the end 7 of the tube 6 in the mouth air cannot be drawn through the tube until movement of the tube 4 relative to the container causes the lip 9 to clear the closure 2 at the recess 13, simultaneously the metering chamber 14 which is closed off from the container by the member 15 engaging the valve 36, is connected by the inlet 21 to the outlet nozzle 12.
Patent GB-798334-A (GB)
Title: Improvements in or relating to liquid storage tanks
Inventor: CARR GEORGE CLIFFORD
IPC: B65D88/34
Filed: 1956-03-15
Abstract: 798,334. Tanks. SHELL RESEARCH, Ltd. Feb. 13, 1957 [March 15, 1956], No. 8190/56. Class 69 (1). In a liquid storage tank the surface of the liquid is covered by a lightweight metal screen formed by a rigid horizontal framework of metal strip, the framework comprising a peripheral curb 1 of similar shape to but slightly smaller diameter than the cross-section of the tank wall, a much smaller continuous central member 4, and a plurality of radial struts 5 each extending from the central member to the curb, a collar 8 of rubber or neoprene secured to the curb to seal the gap between the curb and the tank wall, each compartment of the framework being formed into a liquid-tight trough by securing a sheet of metal foil with upturned edges of the surfaces of the strips 5 surrounding the compartment and the screen being joined to a plurality of wires 9 which are led out of the upper part of the tank above the normal maximum liquid level and are under tension such that the screen will float on the surface of the liquid introduced into the tank beneath it. The tank may be of circular crosssection, the curb being correspondingly circular. The central member is a regular polygon to each corner of which the inner ends of the struts 5 are secured. An additional strut 6 is joined across one diagonal of the central member 4. The sealing collar 8 is supported on an outwardly projecting flange 2 formed on the upper edge of the curb 1. An inwardly projecting flange 3 is provided on the lower edge of the curb 1. This flange together with flanges 7 formed on the struts 5 provides additional support for the foil sheets. These sheets may be of aluminium or aluminium alloy. One or more openings are provided in the screen for sampling and dipping operations. The wires 9 to which the screen is joined pass out through glands 10 (Fig. 3), in the tank roof and then over pulleys 11, 12 so that they can be joined to counter balance weights hanging down outside the tank walls. The wires are connected to an electrical earth to provide a path for the conduction of any static charge generated in the liquid.
Patent GB-492323-A (GB)
Title: Improvements in or relating to goniometer coils for radio direction finding systems
IPC: H01F17/00
Filed: 1937-03-19
Abstract: 492,323. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., JAMES, 1. R. J., and WAGSTAFFE, C. F. A. March 19, 1937, No. 8204. [Class 40 (v)] In order to prevent " octantal " error, the ordinary winding on the search-coil or fieldcoil of the radiogoniometer of an Adcock or other direction-finder is supplemented by a second winding laid at an angle of 60‹ to the first and in series with it on the same core. The same effect can also be secured, by varying the distribution of the windings in the manner shown by the figures opposite each of the slots shown in the Figure. In effect this concentrates the windings towards the centre or axis of the cylindrical former. In both cases signal voltage induced in the search-coil, as its angular position is varied, follows a pure sine law, and is free from harmonics.
Patent GB-295004-A (GB)
Title: Water softening vessels
IPC: B01J47/00
Filed: 1928-03-17
Abstract: 295,004. Etablissements Phillips et Pain. Aug. 5, 1927, [Convention date]. Internal fittings.- Water vessels, such as decanters, are charged with base-exchange watersoftening material through which the water passes as the vessel is filled, a perforated plate being provided to retain the material when the vessel is tilted to discharge the softened water. A decanter, Fig. 11, is filled through a tube 27 to the lower end of which is attached a perforated rubber pouch containing softening material. In emptying, the water passes out through perforations in a stopper 28. To regenerate the baseexchange material, salt is placed on the upper perforated plate.