baber/WOPTO huggingface dataset:
Patent GB-631481-A (GB)
Title: Improvements in or relating to impact wrenches
IPC: B25B21/02
Filed: 1947-04-01
Abstract: 631,481. Screwing-up nuts &c. INDEPENDENT PNEUMATIC TOOL CO. April 1, 1947, No. 8784. Convention date, April 8, 1946. [Class 83 (iii)] [Also in Group XXIV] An impact wrench comprises rods 18 slidably mounted in the hammer member 3 to clutch and declutch the hammer and anvil members 3, 2, and to impart rotational hammer blows on the anvil member when the hammer member rotates relatively thereto, centrifugal flyweights 28 pivoted on the hammer member for moving the rods 18 to clutching position, engaging slots 26, 27, in the anvil member, and cam means on a driving disc 15, driven by a fluid-pressure operated motor 11, for moving the rods 18 to declutching position. The upper ends of the rods 18 have reduced portions 22 engaged by bifurcations on a cross-member 20 slidable on the shaft 4 of the driving disc 15. The fly-weights 28 have lugs 30 engaging grooves in the cross-member 20 and lugs 34 engaging cam-recesses in the disc 15. When rotation of the anvil member is arrested due to the nut or bolt engaging socket 8 encountering resistance, the rods 18 strike abutments 23 or 24 in the slots 26, 27, and the rotation of the hammer member is momentarily halted, reducing centrifugal force on the fly-weights 28 and allowing the driving disc 15 to move the camrecesses therein with respect to the lugs 34 to move the rods 18 to declutching position. As the hammer member is accelerated, the flyweights 28 move the rods 18 to clutching position and further blows are struck on the anvil member. In a modification, Fig. 8 (not shown), the axially-extending lug on each flyweight has a revoluble bearing element thereon.
Patent GB-707340-A (GB)
Title: An improved sealing assembly on a bearing end
IPC: F16C33/74
Filed: 1952-10-14
Abstract: 707,340. Bearings. TOHILL. J. Oct. 14, 1952, No. 8802/52. Addition to 685,111. Class 12(1) In the sealing assembly on a bearing end claimed in claim 1 of the parent Specification, the retaining member is in the form of a ring 20 adapted for screw-threaded engagement with the bearing end. The ring 20 which may be of brass is externally screw-threaded and enters the recess in the bearing end to press against the first packing ring 19.
Patent GB-946326-A (GB)
Title: Improved finned type electric heating device
IPC: H05B3/50
Filed: 1961-03-10
Abstract: 946,326. Electric resistance-heating elements. P. G. STIRLING. March 9, 1962 [March 10, 1961], No. 8833/61. Heading H5H. A helically wound fin 13 of L-shaped crosssection surrounds the sheath or forms the sheath of a tubular electric heating element. The fin may surround the metal sheath of a sheathedtype element (Fig. 1, not shown) and be retained in position by its natural resilience or by welding or soldering. In Fig. 2 the fin 13 forms a sheath for a helical heating wire 11 from which it is insulated by interlocking beads 12 which may be supplemented by, or replaced by, a sleeve of a silicone material or fibre glass. Parts of the fin may be bent as indicated at 14 (Fig. 3) to provide surfaces for engagement with an object to be heated. In other embodiments the finned element is enclosed in contact with a casing for use as an immersion heater or to form a helical passage for use in a flow heater.
Patent GB-821847-A (GB)
Title: Ampoule for the sterile storage of liquid medicaments
Inventor: JUNCHER HENNING OLAV
IPC: A61M5/28
Filed: 1956-03-21
Abstract: 821,847. Hypodermic injection appliances. NOVO TERAPEUTISK LABORATORIUM A.S. March 21, 1956 [March 23, 1955], No. 8894/56. Classes 81 (1) and 82 (2). A syringe ampoule comprises a deformable metallic container having a generally cylindrical main part which is so thin that it is axially compressible, one end of the main part being closed by a slightly dished portion convex towards the ampoule exterior and the other end being shaped as an axially disposed tube tip. The dished portion 20 is secured to the cylindrical part 10 by a flanged collar 16 and soldering. The other end of the ampoule has a thickened integral tube tip 28. The generally cylindrical part 12 is a figure of rotation corrugated parallel to the axis. It is filled with medicament through the tube tip which is then sealed. For emptying, the dished portion is pierced by a cannula and the ampoule is axially compressed, the cannula then being protected by the tube tip.
Patent GB-250575-A (GB)
Title: Process for preparing hair for felting
IPC: D01C3/00
Filed: 1926-04-01
Abstract: 250,575. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). April 9, 1925, [Convention date]. Furs and furriers. - The felting properties of rabbit and hare skins are improved by treating the hair with a solution of a metallic salt other than a mercury salt and a body that facilitates the absorption of the solution by the fibre. Suitable bodies are the sulphonic acids of naphthalene compounds of high molecular weight e.g. the commercial products known as " Leonil " and those known under the Trade Marks "Nekal" and " Neomerpin." In an example the skins are brushed in the usual manner with an aqueous nitric acid solution of bismuth nitrate to which " Leonil S" is added.
Patent GB-1177804-A (GB)
Title: Improvements in or relating to methods of manufacturing Loudspeaker Pots from a piece of Soft Iron
IPC: B21C23/20
Filed: 1967-02-24
Abstract: 1,177,804. Making loud-speaker pots. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 24 Feb., 1967 [1 March, 1966], No. 8983/67. Headings B3A and B3H. A loud-speaker pot 1 is made from a workpiece of soft iron entirely by pressing operations. In the first stage a solid workpiece is pierced and backwardly extruded, Fig. 1 (not shown). In a second stage, Fig. 2 (not shown), the open end of the cup-shaped workpiece is reduced in diameter. In a third stage, Fig. 3 (not shown), the open end is upset to provide a thick flange 12 and in the final stage the open end is shaped by punch 3 and ejector 9 and the closed bottom is flattened and calibrated.
Patent GB-268551-A (GB)
Title: Improvements relating to steam heating apparatus
IPC: B61D27/00
Filed: 1926-04-06
Abstract: 268,551. Barty, T., and Westinghouse Brake & Saxby Signal Co., Ltd. April 6, 1926. Thermostats.-In a steam heater, particularly applicable to railway vehicles, a thermostatic element 10 carrying a control valve (not shown) is attached to an adjusting device 2 provided with a projecting pin 1 engaging with an inclined slot 3. The member 4 in which the slot 3 is formed is mounted on studs 8 between nuts 6, 7, so that it is longitudinally adjustable relatively to the element 10. The element 10 and valve may thus be adjusted longitudinally by rotation of the element 10, while the initial position of the thermostat can be varied according to the length of heating unit employed by moving the member 4 to or from the casing. A modification is described in which the pin 1 engages with an inclined cam face on the member 4 instead of in a slot.
Patent GB-1588111-A (GB)
Title: Esters and thiolesters of amino acids intermediates therefor processes for their production and compositions including them
IPC: C07C227/00
Filed: 1978-03-07
Abstract: The new esters and thiolesters (thioesters) of amino acids are represented by the formula (A) <IMAGE>  W and R<1> to R<5> are defined in the preceding Claim 1. The said compounds have insecticidal and acaricidal properties.
Patent GB-127560-A (GB)
Title: Improvements relating to the Mixing of Cement and Apparatus therefor.
Inventor: JOHNSON NATHAN CLARKE
IPC: B28C5/26
Filed: 1919-04-09
Abstract: 127,560. Johnson, N. C. May 29, 1918, [Convention date]. Mixing-apparatus.-In a method of mixing cement and water in batches, with or without other ingredients, the material is subjected in a container to centrifugal force so as to produce high-velocity mass flow of the batch and cause it to circulate rapidly in a steady continuous stream along one or more paths rapidly changing in direction, thereby causing the particles to be compacted together with interparticle attrition. The attrition is sufficient to raise the temperature of the mass substantially and without substantial areation thereof. As shown, the concrete-mixer consists of a vertical mixing-bowl 1, Figs. 1 and 2, with outwardly-curved flaring walls and mounted by means of a central projection 8 on a stationary shaft 9, on which it is rotated so as to have a peripheral speed of about 1500 feet per minute by worm gearing 16, 24 from a shaft driven by a motor 22. The bowl preferably consists of a bottom section 2 and a number of upper sections 3 secured to each other by butt-straps 6, and to the section 2 by bolts 7. The abutting edges 5 of the sections 3 are preferably shaped so as to fit obliquely. The shaft 9 is secured to the base 10, and a nut 12 prevents the bowl from moving upwards, a protecting-cap 13 secured by bolts 14 to the projection 8 enclosing the nut and upper end of the shaft. A stationary guard-ring 25 bolted to uprights 26, Fig. 5, is provided for the rim of the bowl. The stationary defecting and mixing blades 27 are each carried by an arm 32 pivoted on an upwardly-extending pin 31 on a member 29 secured to a lateral boss 28 on the upright 26. The outer portions of the blades are formed as hardened sections 45 secured to the body portions by screws 46. The inner face 47 of each blade is preferably curved along its .length as well as across its width, and is inclined forwardly and inwardly against the direction of flow of the material. An upturned flange extends along the upper edge of each blade. One of the blades can be tilted by means of a handle 38, and a discharge blade 40, with its inner end 43 curved upwardly, is arranged behind the tilting blade and carried by a curved arm 41 bolted at the lower end to the upright 26 which carries the tilting blade. The blade 40 directs the mixed material over the side of the bowl into a shoot 44, but is shielded by the tilting blade during the mixing operation. A single mixing or deflecting blade may be used.
Patent GB-392336-A (GB)
Title: Method of preparing tobacco substantially free from nicotine
IPC: B41J1/22
Filed: 1932-03-29
Abstract: For removing nicotine, tobacco is treated with an organic solvent such as ether, the nicotine is removed from the extract with an acid aqueous washing liquid which is distilled in steam carrying over any aromatic substances.  The latter are recovered from the distillate by shaking with the original solvent and returned to the tobacco.
Patent GB-263362-A (GB)
Title: Improvements in blotter attachments for pen staffs
IPC: B43K29/04
Filed: 1926-04-06
Abstract: 263,362. Brittain, D. April 6, 1926. Blotting-appliances.-Pens are provided with a blotting-attachment having a flat or substantially flat blotting surface adapted to be held firmly across the end of the staff or of the cap of a fountain pen. In one form a plate is secured to the end of the staff or cap and a sheet of blotting-paper or like material is attached thereto by adhesive or other manner. In another form, a cap of blotting material is fitted on the end of the pen. As shown in the Fig. a split tubular member 11 is mounted on the end of the pen and is provided with a lug 13 co-operating with a diametricallyopposite spring finger 14 to hold a sheet 15 of roughened material to which the sheets of blotting-material 16 are secured by adhesive. In other forms, the plate 15 screws into a tubular extension, or is secured by inwardly-bent. flanges, on the outer face of the members 11.
Patent GB-1494678-A (GB)
Title: Polyolefin compositions
IPC: C08L23/06
Filed: 1975-03-06
Abstract: 1494678 Flame resistant compositions UNION CARBIDE CANADA Ltd 6 March 1975 [6 March 1974] 9323/75 Heading C3P Flame resistant compositions comprise (1) polyethylene, (2) 5 to 15 weight per cent of hexabromobiphenyl, (3) 2 to 15 weight per cent of antimony trioxide and (4) 5 to 50 weight per cent of a copolymer of ethylene with vinyl acetate, acrylic acid or ethyl acrylate.
Patent GB-752001-A (GB)
Title: Automatic liquid metering device
Inventor: MALAFARINA ALDO
IPC: G01G13/00
Filed: 1954-03-30
Abstract: 752,001. Fluid-pressure servomotor-control systems. ATOMA OFFICINE MECCANICHE. March 30, 1954, No. 9339/54. Class 135. An automatic weight metering device for liquids comprises a pneumatic control system operated in response to the pointer position of a tare allowance weighing machine, valve control gear for compressed air and liquid valves with a detent actuated by a bellows and a pneumatic circuit with a relay whereby the bellows is operated according to the pointer position to hold the liquid valve fully open, then partially closed, and finally closed on completion of the metering operation. Compressed air at 12<SP>A</SP>, Fig. 1, acts on a bellows device to deflect a pointer 3 through a predetermined angle corresponding to the weight of liquid to be metered and opens a valve 1 so that air from the bellows device and via the reducer 2 inflates a bellows 4 to open a valve 17 allowing high pressure air from the device via conduit 34 to inflate a bellows 14 to unlatch a lever 6 which is then raised against a spring to open a liquid valve 13, the metered weight of liquid in a container 11 then zeroizing the pointer to close the valve 1 and allow the lever to move down and effect discontinuation of liquid delivery. On lifting the lever 6 about the spindle 37, Fig. 4, until a finger 51 abuts the top of a stop 47, a cam 42 rotates and allows a valve 16 to open and pass air to the bellows device. In this device the bellows is expanded to deflect the pointer and open a valve to pass air via pipes 7<SP>A</SP>, 23a to the parts 2, 1 and 4. The valve 1 is a vane formed by the pointer and moving between opposed orifices. Inflation of the bellows 14 slides a carrier 48 along rods 49, 50 against a spring 58 to move stop 47 from the lever 6 so that the lever may be further raised to engage finger 51 under a catch 52 and rotate a cam 41 allowing the liquid valve 13 to open. On the weight of liquid zeroising the pointer and closing valve 1, both bellows 4, 14 are deflated, the catch 52 releases the lever which then moves to engage the' other side of stop 47. In this position valve 16 remains open but valve 13 only allows a very small flow of liquid which eventually moves the pointer to reopen the valve 1 so that both bellows are re-inflated and stop 47 moved to release the lever and close both valves 13, 16. The liquid may be dispensed without automatic control by using lever 8.
Patent GB-632959-A (GB)
Title: Method of communition and mill
IPC: B02C13/18
Filed: 1947-04-09
Abstract: 632,959. Grinding mills. PLURO, Inc. April 9, 1947, No. 9426. Convention date, April 9, 1946. [Class 59] A method of comminution comprises hurling the material to be reduced centrifugally under vacuum against an impact surface disposed substantially normal to the trajectory of the material and passing a cooling fluid adjacent to the trajectory of the material and the region of impact thereof. Material fed down from a hopper H on to a hub 43 of a rotor R is guided by shaped vanes 44 on the rotor to radial hurling vanes 40, formed with overhanging lips. 42 and being provided with wear strips 41 on their operative faces, which vanes fling the material against a surrounding serrated and bevelled impact ring I, whence the comminuted material is deflected downwards through an annular discharge conduit 31 into a suitable collector, the conduit 31 being agitated by electromagnetic vibrators 33 to prevent particles adhering to its walls. Cooling oil from an inlet pipe 29 is conveyed through bores in a. rotor shaft 18, radially along bores in the rotor plate lying under the hurling vanes 40 and back along closely adjacent other radial bores in the rotor plate R to an outlet 30. Cooling fluid is also passed through a channel behind the surface of the impact plate I. Cooling air from a fan 36 passes inside a casing 21 over a rotor motor 22 and over the vibrators 33. The mill is maintained under a substantial vacuum by suction from a pipe 28.
Patent GB-1184736-A (GB)
Title: Improvements in or relating to Cylinder Moulds
Inventor: STIRLING ALEXANDER BLYTH
IPC: D21F1/60
Filed: 1967-02-28
Abstract: 1,184,736. Rollers. N. GREENING & SONS Ltd. 28 Feb., 1968 [28 Feb., 1967], No. 9439/67. Heading F2U. [Also in Division D2] A moulding cylinder for papermaking machines comprises circumferentially spaced rods 19 extending axially between end plates 10, (11) and supporting axially spaced rings or convolutions of wire 20 having a wedge shaped section. The wires 20 have a rounded outer surface 23, are separated by spacers 22 and carry a wire mesh cover. Rings 18, 18a and radially adjustable spokes 16 provide additional support for the rods 19. The end plates 10, (11) are fast with a driving pulley 14 and with a hollow shaft 12 which is freely rotatable on a fixed support shaft 13. The axial distance between the centres of adjacent wires 20 is between 3 mm. and 9 mm. and the gap between adjacent wires 20 is between 1 mm. and 5 mm.
Patent GB-1108737-A (GB)
Title: Process for flocculating iron oxide suspensions
IPC: C01F7/0653
Filed: 1966-03-03
Abstract: Suspensions of finely divided solids in an aqueous medium are flocculated by adding to the suspension a mixture of starch and polyacrylic or polymethacrylic acid.  Suitable starch products include corn starch, tapioca starch, potato starch, amylose and sorghum. The process is of particular use in the manufacture of alumina from bauxite by the wet alkali-aluminate process, wherein suspended iron oxide impurities ("red mud"), present in the obtained aqueous alkaline sodium aluminate solution are flocculated by addition of the aforementioned mixture.
Patent GB-117115-A (GB)
Title: Improvements in or relating to the Spring Suspension of Road Vehicles and of Landing Gear for Aircraft.
Inventor: BOWEN ERNEST WINDSOR
IPC: B60G21/05
Filed: 1917-07-03
Abstract: 117,115. Bowen, E. W. July 3, 1917. Shock of landing, deadening.-To distribute shock between quarter-elliptic springs on the two sides of the landing gear of aircraft, the springs on the two sides are mounted on shafts geared to rotate in opposite directions. Fig. 1 shows a motor vehicle in which a quarter-elliptic spring 2 is secured to a shaft 3 connected through bevel gears 7, 8, 10 to a shaft 11 which carries the spring on the other side of the vehicle. In one modification, the two bevel wheels 7, 10 are replaced by arms which engage the ends of a centrally-pivoted lever replacing the wheel 8. In another modification, the springs are mounted on short shafts having vertical arms which are engaged by the ends of a centrally-pivoted lever extending across the chassis.
Patent GB-427224-A (GB)
Title: Improvements relating to the construction of wooden seated chairs
IPC: F16B12/18
Filed: 1934-03-27
Abstract: 427,224. Chair frames. MEALING, R. N., Avenue House, West End Road, High Wycombe, Buckinghamshire. March 27, 1934, No. 9528. [Class 52 (ii)] Strengthening means for wooden chairs comprise a flat rectangular section metal bar 1 adapted to be secured under the rear edge of the seat 2 by means permitting expansion or contraction of the seat, e.g. by means of screws 7 passing through slots 6, 8 and provision for securing the ends of the bar to the back legs of the chair so as to be rigid therewith, or so as to swivel thereon. The bar may for instance have circular extensions 3 which pass through the legs and are threaded to receive nuts 5. The nuts 5 may be recessed into the legs, and the recesses plugged. Alternatively, the bar may fit closely between the legs, and be secured by screws passed through the legs into tapped holes in the ends of the bar.
Patent GB-650305-A (GB)
Title: Improvements in or relating to control mechanism for aircraft
IPC: G05D1/06
Filed: 1947-04-10
Abstract: 650,305. Controlling aircraft. NORTH AMERICAN AVIATION, Inc. April 10, 1947, No. 9563. Convention date, April 22, 1946. [Class 4] [Also in Group XXIX] In order to reduce the effects of air gusts on an aircraft, a device sensitive to vertical airflow is mounted on the wing and arranged to operate a device for effecting direct variation of wing lift to compensate for the effect of such vertical airflow. As shown, a vane 27 mounted ahead of the wing 22 is arranged to operate trailing edge flaps 18, 181 on the ailerons and lift flaps 19, 20 respectively, through the agency of a relay valve 16 and fluid pressure servomotor 17 (see Group XXIX), the flaps being raised to reduce the lift when an upward gust is encountered, and conversely. The vane may be carried between arms projecting from the leading edge of the wing in the case of a single-engined aircraft, or at the nose of the fuselage of a twin-engined machine. The rod 37 of the servomotor 17 actuates the flaps 18, 18<SP>1</SP> through linkages 38, 39, 39<SP>1</SP>, 41, 411, 42, and a trim tab 31 on the vane 27 is operated simultaneously with the elevators 73 through a linkage 71, 72, 74, 75. A pitot tube may be used in conjunction with the vane 27 to vary the rate of response of the servomechanism in accordance with the speed of the aircraft. Instead of employing flaps to vary the lift characteristics of the wing, spoilers or boundary layer control devices may be used.
Patent GB-308652-A (GB)
Title: Improvements in telephone apparatus more particularly adapted for use in wireless loud-speakers
IPC: H04R11/00
Filed: 1929-03-25
Abstract: 308,652. Macchioni, P. A. March 24, 1928, [Convention date]. Loud-speckers; magnetic instruments. - Relates to telephone apparatus, more particularly for use in wireless loud-speakers, of the kind in which the oscillator member forms part of a reduced extension of one of the poles of a magnet, the other pole being fitted with an adjustable pole-piece, which may be laminated, and carries a coil and consists in a construction in which the thin oscillatory member is of greater thickness at the root and tip than at the middle, is wider in the middle than at the root or tip, and is slightly concave or "dished," the convex side facing the other magnet pole. In the construction, Fig. 1, a horseshoe magnet has a vibratory arm in the form of a thin slightly curved sheet 2 having the outline shown in Fig. 3. The free end of this arm co-operates with a coil 5 carried on a polepiece 3 Mounted for vertical adjustment on the upper end of the thicker magnet arm 1. Fig. 4 shows a construction of loud-speaker in which the unit is mounted on the back 9 of a casing, the front of which is closed by a diaphragm 6 secured on a rod 11 attached to the arm 2. The rod 11 passes through a perforated cover or gauze 10 and carries at its outer end a nut 12 bearing against a spring 13 so that the vibrations of the arm 2 can be more or less damped by adjustment of the nut 12. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction in which a deep slot is cut lengthwise in one arm of a horseshoe magnet so as to form on the inner side thereof a sheet which vibrates under the action of the coil. This subject-matter does not appear in the Specification as accepted.
Patent GB-454771-A (GB)
Title: Improvements relating to bearings
IPC: F16C33/06
Filed: 1936-04-01
Abstract: 454,771. Making composite bearings. GENERAL MOTORS CORPORATION, Detroit, Michigan, U.S.A. April 1, 1936, No. 9613. Convention date, May 22, 1935. [Class 83 (ii)] [See also Group XXXIV] A bearing bush is formed by coating a strip of backing metal with a plastic bronze layer 10, 14, by fusing or welding. A strip 11 of bronze near each edge is removed and the edges then bent down to form flanges 7. Finally the strip is bent to semi-cylindrical form. In a modification the end flanges have all the plastic bronze layer removed. Pairs of bearings so formed are assembled and bored internally and ground externally to size.