baber/WOPTO huggingface dataset:
Patent GB-1091412-A (GB)
Title: Improvements in disc brakes
Inventor: HARRISON ANTHONY WILLIAM
IPC: F16D65/14
Filed: 1963-06-17
Abstract: 1,091,412. Disc brakes. GIRLING Ltd. June 4, 1964 [June 17, 1963], No. 19644/63. Heading F2E.  In a spot type disc brake a friction pad 12 is adapted to be applied to the disc by a thrust member, formed by the pistonrod 14, which is actuated by a piston 15 working in an hydraulic cylinder 16 in one limb of the caliper, the end of the thrust member in engagement with the friction pad being adapted to move to a limited degree as the friction pad moves from one abutment to the other on reversal of the direction of rotation of the disc, the thrust member being in slidable sealing engagement with a resilient annular member 21 which is located between the thrust member and a surface of the caliper 11 and is attached to or carried by the forward end of an axially extending sleeve 22 which fits over the thrust member. Between the sleeve 22 and the thrust member 14 is located an annular sleeve like member 23 which frictionally grips the thrust member to restrain return movement of the latter during short duration impact loads applied to the friction pad 12 by the disc. During normal brake applying and retracting movements the friction member 23 moves axially with the thrust member 14 but allows the thrust member to slide through it when the friction pad 12 has worn to a predetermined extent so that there is maintained between the friction pad and the disc in the " off " position of the brake a substantially constant clearance defined by the permitted free movement of a radial flange 24 at the rear of the sleeve 22 in an annular recess 25 of limited axial length in the caliper 11. Although the embodiment disclosed above relates to a floating caliper disc brake the invention may be applied to disc brakes in which the caliper may be fixed axially and the disc is axially movable relative to the caliper. Alternatively the invention may be applied to disc brakes in which the caliper is fixed and in which opposed friction pads are both directly actuated by actuating means located in or on the limbs of the caliper. The brakes disclosed above may be operated by mechanical actuating means acting on the thrust members 14.
Patent GB-125337-A (GB)
Title: A New or Improved Portable Hand Scriving Tool.
Inventor: TAYLOR JOHN
IPC: B25H7/04
Filed: 1918-11-28
Abstract: 125,337. Taylor, J. Nov. 28, 1918. Trenching. - A portable hand-tool for scriving timber, especially in the production of ships' frames on scrive boards, comprises a rotary cutter c driven either by a motor b mounted in the tool or by a flexible shaft from a separate motor. The cutter is connected by bevel-gearing to a shaft d, which is telescopic to allow the cutter to be adjusted by a set-screw l to vary the depth of cut, this being determined by the projection of the cutter beyond its casing n. The tool is manipulated by a handle a.
Patent GB-335282-A (GB)
IPC: D05B69/12
Filed: 1929-06-26
Abstract: 335,282. British Dardelet Threadlock (D.D.G.) Corporation, Ltd. Dec. 13, 1928, [Convention date]. Percussive drills.-For the endwise connection of male and female members wherein each member is a right cylinder having a cross section of an archimedian spiral form the members are characterized by the provision of serrations or transverse grooves. The grooves may be closed,. or continuous in the form of helices. Instead of cylinders with parallel generatrices, the members may be formed as helicoids of extended pitch. The male member a and female member b having a section of an archimedian spiral which is completed by a short curve are shown loosely assembled and are adapted to be locked by turning the male member. The surfaces are provided with grooves and ridges which interlock and prevent axial displacement of the members. Specification 292,147, [Class 83 (iii), Metals,- Cutting], is referred to.
Patent GB-760641-A (GB)
Title: Improvements in or relating to tubeless tires
IPC: B60C5/12
Filed: 1954-07-06
Abstract: 760,641. Tubeless tyres. FIRESTONE TIRE & RUBBER CO. July 6, 1954 [Aug. 11, 1953], No. 19736/54. Class 144 (2). To facilitate handling during mounting of a tubeless tyre safety diaphragm 10 having axial and radial edge flaps 20, 21 which clamp between the tyre beads 15 and the bead seating and retaining flanges 16, 17, respectively, of a rim 12, the radial flaps 21 are made substantially stiffer than the remainder of the diaphragm either by stiff reinforcing inserts or by forming them of relatively hard rubber such as within the range of 40-80 Shore durometer. The reinforcing inserts may be strips of sheet, or woven monofilaments of, plastic material such as nylon or rayon, or of metal wire screen. The radial flaps 21 may be thicker than the axial flaps 20. Specification 701,240 is referred to.
Patent GB-919881-A (GB)
Title: Improvements in or relating to an electric cell installation
IPC: H01M6/38
Filed: 1959-06-09
Abstract: 919,881. Batteries. YARDNEY INTERNATIONAL CORPORATION. June 9, 1959 [June 9, 1958; June 10, 1958]. No. 19785/59. Class 53. A battery is activated by a piston and cylinder arrangement powered by a gas generating cartridge and operative to displace the electrode assembly into contact with the electrolyte. In Fig. 1, the piston 41 is operated by gas produced in the first instance by an electrically fired gas cartridge 20 backed up by a gas cylinder 16, the diaphragm of which is pierced by a pin 28. In Fig. 4, the cartridge 124 displaces a piston 117 carrying the respective electrode assemblies 112 which enter the electrolyte containers 111 after breaking diaphragms 150.
Patent GB-916023-A (GB)
Title: Apparatus for moulding tubular parts
IPC: B28B21/74
Filed: 1959-06-09
Abstract: 916,023. Pipe-casting machines. SOC. TECNICA DE HIDRAULICA S.a.r.L. June 9, 1959 [Dec. 20, 1958], No. 19790/59. Class 87(2). A compressing and impressing roll for use in the machine claimed in Specification 889,118 is divided longitudinally into a plurality of independently rotatable coaxial portions A-G, the peripheral speeds of which are controlled only by the frictional reaction of each of the portions on the mass to be moulded. The diameter of each portion differs along the length of the roll but the difference between the maximum and minimum diameters of each portion is less than that between the maximum and minimum diameters of the complete roll. In the roll illustrated, the separate portions are mounted on ball bearings J on the shaft H and thrust rings I of bronze or other suitable metal or alloy are provided between the different portions.
Patent GB-1477434-A (GB)
Title: Rotary mowers
IPC: A01D34/63
Filed: 1975-05-12
Abstract: 1477434 Rotary mower INTERNATIONAL HARVESTER CO 12 May 1975 [10 May 1974] 19792/75 Heading A1F An assembly for a drum or disc-type rotary mower comprises a disc 3, rigid arms 9, 9' pivotally mounted underneath the disc and means, for releasably retaining one end of each-arm in a position whereby, a cutting element 8 is retained between the bottom face of the disc and the one end of the arm. The frusto-conical disc 3 is rigidly fixed to a shaft 2 projecting from a frame 1. Two cutting elements or knives 8 project radially outwardly from the disc but are rotatably mounted on a portion 14 of a stopped stud on one end of the arm 9. The arm pivots about a pin 10 carried by brackets 11 secured to the disc. A skirt 20 of a cup 18 rotatably mounted on the disc prevents the portion 9b of the arm from passing through a slot 17 in the disc, thus forcing a portion 15 of the stepped stud into a bore 13 in member 12 to retain the knife on the arm. The skirt 20 comprises two notches, each notch being aligned in turn with a slot 17 to allow the portion 9b to pass through the slot to release the knife from the assembly. The stepped stud may be on the disc with a bore 13 in the arm. Alternatively, the arm is pivotally mounted at its other end and a screw 26 passing through recesses in the disc 3 and a lower plate 24, screws into a bore 25 in the arm (Fig. 5).
Patent GB-585744-A (GB)
Title: Toothed gear finishing and crowning machine
IPC: B23F19/00
Filed: 1944-10-13
Abstract: 585,744. Gear-cutting. MILLER, E. W., and FELLOWS GEAR SHAPER CO. Oct. 13, 1944, No. 19804. [Class 83 (iii)] [Also in Group XXIII] In a machine for crowning the teeth of gearwheels by shaving, lapping, &c., using an intermeshing generator cutter, the construction of the machine is similar to that described in Specification 537,891 and the pivot about which the work or cutter oscillates for the crowning action is adjustable to vary the extent of crowning. The work is mounted between centres 1, 2 on head and tailstocks 3, 4 carried by a table 5 and the cutter T is mounted on a shaft 7 rotatable in a head 8 which is angularly adjustable about an axis C-L, Fig. 2, on a reciprocating slide 9. The pivot 70 for the table 5 is carried by a slide 71 adjustable in the machine frame 6 by a screw 80 and the pin engages a slide 74 which is clamped to the table, after adjustment of the slide 71, by bolts 76. The table is oscillated about pivot 70 by a worm 84 engaging an arcuate toothed segment 83 on the table the worm being driven by shaft 93, change gearing 91 and chain or belt drive 86 from a shaft 42 which is oscillated from a motor-driven crank 38. The shaft 42 also reciprocates the cutter slide 9 so that reciprocation of the cutter and oscillation of the work take place in timed relation and in opposite directions. The segment 83 is adjustably secured to the table 5 by bolts and slots 94 so that it may be moved to maintain its mean radius passing through the pivot 70 and parallel to the axis of centres 1, 2 for all positions of the pivot, this setting being facilitated by the use of gauge blocks 95. As the pivot is adjusted nearer to the cutter, the rounding effect on the teeth of the work is increased. The drive for the cutter T, the means for reciprocating the slide 9 and a cam feed for feeding the cutter into mesh with the work are all described in Specification 537,891, and the positions of the work and cutter may be interchanged.
Patent GB-1103787-A (GB)
Title: Transit flask for radioactive objects
Inventor: BRISAC MICHEL
IPC: G21F5/015
Filed: 1966-05-05
Abstract: 1,103,787. Shielded containers for radioactive material. COMMISSARIAT A L'ENERGIE ATOMIQUE. 5 May, 1966 [21 May, 1965], No. 19862/66. Heading B4Q. A flask for transporting an irradiated fuel element to a hot cell and having means whereby it may be sealed to an aperture in a vertical wall of the cell (Fig. 4, not shown) to permit transfer of the element through the aperture, comprises a lead-filled casing 10 provided with a removable dome 14. The flask is used horizontally with a shielding plug 30 facing upwards so that when the dome 14 is removed a frusto-conical nose 12 may be engaged with a similar-shaped surface surrounding the aperture in the hot cell wall. A stepped passageway 18 on the axis of the casing 10 normally sealed at the rear end by a plug 26 receives a tube 34 containing a cradle (36) (Fig. 2, not shown), the cradle carrying the fuel element. The front end of the passageway 18 is sealed by a screwthreaded plug 22 and by a plug 24, the latter plug being removed at the same time as the dome 14. The front ends of the tube 34 and cradle (36) are normally locked together by interengaging lugs (44, 48) and may be disengaged by relative rotation through 30 degrees. In use, after mating of the nose 12 with the hot cell aperture, the plug 26 is removed and a push-rod (52) (Fig. 3, not shown) is coupled to the rear end of the tube 34. The plug 30 is removed and the plug 22 raised by a screwing motion whereupon the tube 34 is advanced by the rod (52) until the front end of the cradle (36) constituted by a stopper (38) engages a stopper (38<SP>1</SP>) locked by interengaging lugs (44<SP>1</SP>, 48<SP>1</SP>) in an opening formed in a collar (68) defining an entry in a liner (66) of the hot cell (Fig. 4, not shown). The tube 34 is rotated through 30 degrees by the rod (52) to lock together the stoppers (38, 38<SP>1</SP>) by interengaging lugs (74, 74<SP>1</SP>) and also to lock the tube 34 with the collar (68) by interengaging lugs (42, 42<SP>1</SP>). A manipulator (not shown) in the hot cell now rotates the stoppers (38, 38<SP>1</SP>) as a unit to disengage the lugs (48, 48<SP>1</SP>) and permit withdrawal of the stoppers together with the cradle (36) into the hot cell.
Patent GB-531632-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C3/38
Filed: 1939-07-07
Abstract: 531,632. Aeroplanes. HALAHAN, M. F. C. July 7, 1939, No. 19866. [Class 4] An aeroplane having a wing pivoted to the fuselage and tiltable to vary its incidence by jack-mechanism has a strong cantilever member secured to the wing and to the movable part of the pivotal mounting so as to extend rearwardly in the general plane of the wing, the jack mechanism acting on this member, or a part flxed thereto, to the rear of the pivotal mounting. A main spar 10 extending right across the fuselage is pivoted in bearings 12 secured to uprights 14. The spar 10 is coupled to a secondary spar 11 by members 15, keyed to the spar 10, and on each side of the fuselage a hydraulic jack 27 is pivoted in a bracket 30 and has its ram coupled to the spar 11. To equalize the movement on the two sides a shaft 37 pivoted in the members 15 has two pinions 38 engaging fixed racks 39. A mechanical jack may be used in addition to or instead of the hydraulic jacks and comprises bevel gearing driving the shaft 37. A hand wheel 64 is coupled by chain gearing 62 to a shaft 60 on which is a bevel wheel 61 geared to a bevel wheel 58 through which a squared shaft 57 can slide, the shaft 57 having a bevel wheel 56 gearing with a bevel wheel on the shaft 37. The hydraulic jacks are controlled by a rotary valve with follow-up gear supplied with pressure fluid from a power-driven pump or by an emergency hand pump, and an indicator coupled to one of the members 15 indicates the position of the wings. The secondary spar 11 need not extend across the whole wing. In a modification, the wing root is connected to a frame pivoted on a shaft which is not coincident with the front spar 10. Fig. 8 shows a wing having a fixed front portion 69 supported on a stub spar 70 and carrying an engine the rear portion of the wing turning with the spar 10. The part 69 may extend across the whole span of the wing.
Patent GB-585088-A (GB)
Title: Improvements in the manufacture of rubber hydrochloride and packaging material and packages made therefrom
IPC: B65D65/38
Filed: 1943-11-29
Abstract: Rubber hydrochloride having a low permeability to moisture vapour is obtained by the hydrochlorination of rubber from latex which has been substantially freed from its protein content.  A preferred method comprises treating the latex with alkali to hydrolyze the protein matter and then creaming it several times to hydrolyze the solubilized foreign matter.  The rubber obtained from such latex may be hydrochlorinated in the normal way and then cast into films 0.0004 to 0.004 of an inch thick, which may be used as a wrapping material or formed into a bag the edges of which may be heat sealed. Specification 490,824 (as open to inspection under Sect. 91) is referred to.
Patent GB-833667-A (GB)
Title: An improvement in a method of obtaining sintered beryllium oxide
Inventor: CAILLAT ROGER
IPC: C04B35/08
Filed: 1956-06-27
Abstract: A high purity, high density beryllium oxide free from mechanical defects such as cracks and holes, is prepared by sintering at above 1700 DEG  C. anhydrous beryllium oxide obtained by calcining a beryllium hydroxide at least the majority of which is in the beta form, said beryllium oxide being mixed with more than 1% of anions in the form of a beryllium salt or an acid which under the sintering conditions forms a beryllium salt.  The beryllium salt or the acid may be added to the anhydrous beryllium oxide or to the beta hydroxide; in the latter case the hydroxide is calcined to such a degree as to allow the desired amount of anion to remain in the oxide.  Salts mentioned are the chloride and sulphate; it is preferred that the salt should melt at or below the temperature of total dehydration.  The salt may be mixed dry or as a solution, with the hydroxide, which in an example is a moist filter cake, to form a paste, which is then dried and calcined, e.g. at 1000 DEG  C., as a single operation or separately. The resulting mixture, in the examples, is finally sintered at 1780 DEG  C. and a pressure of 178 kg./sq. cm. for two hours. Specification 788,393 is referred to.
Patent GB-202976-A (GB)
Title: Machine for sharpening razor blades
IPC: B24D15/08
Filed: 1923-08-04
Abstract: Sharpening-compositions for use on aluminium or other soft-metal rollers of a machine for sharpening razor blades, comprise emery powder, Vienna chalk, purified petroleum jelly, and tallow.
Patent GB-316415-A (GB)
Title: Improvements in magazine disc talking machines
IPC: G11B17/16
Filed: 1928-07-10
Abstract: 316,415. Gramophone Co., Ltd., (Victor Talking Machine Co.). July 10, 1928. Magazine gramophones.-Relates to magazine gramophones of the kind in which records 26 from a pile a above the turntable 9 fall on to supports. 12 carried by the turntable, the supports being movable to permit the played record to fall to a position vertically below the playing position. According to the present invention, a plurality of supports 12 are carried by levers 11 hinged to the turntable and are adapted to be raised to bring the record into contact with the stylus. The outward and upward movements of the supports are effected through the levers 11 by a vertically sliding plate 14 operated by a lever 17 rocked by a cam 21. The cam enables the supports to occupy three positions, viz.-an intermediate record-receiving position, an upper playing position, and an outer record-releasing position. Radially movable supports 7, 8 enable the records in the pile to be released one at a time for movement down the spindle 6 and over the turntable spindle 4.
Patent GB-1465172-A (GB)
Title: Process for the preparation of particles containing metal oxides  and/or metal carbides
IPC: B01J2/08
Filed: 1974-05-07
Abstract: 1465172 Uranium oxide and/or carbide KERNFORSCHUNGSANLAGE JULICH GmbH 7 May 1974 [8 May 1973] 20147/74 Heading C1A [Also in Division G6] Spherical particles containing uranium oxide and/or uranium carbide are prepared by introducing, in drop form, an aqueous dropping solution or sol. of uranyl nitrate and/or uranyl chloride containing, per mol. of the uranyl ions in the solution as a result of dissociation, 1 to 3 mol. of ammonium salt and 2 to 6 mol. of urea and also (when carbide is desired) carbon in colloidal form into an organic phase consisting of a ketone or ketone mixture which contains ammonia and has at 20‹ C. a dissolving power for water and not more than 4% by weight and at 20‹ C. a viscosity in the range 0À5 to 2À0 centipoise and located above an aqueous ammonia solution, and the particles formed are collected and sintered (see Specification 1,395,561). One or more of a plutonium salt, an aluminium salt and/or a zirconium salt may also be present in the aqueous dropping solution in such a quantity that the proportion of oxides and/or carbides of plutonium, aluminium and/or zirconium in the particles is up to 20% by weight. The particles may be used as fissile and/or fertile material for nuclear reactors.
Patent GB-325771-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D11/24
Filed: 1929-07-01
Abstract: 325,771. Paull, R. B. July 1, 1929. Spray burners.-In an oil burner of the pressure type the vaporizer comprises a mixing-chamber 10 formed by two conical members 5 and 6 each having an integral nozzle extending into the chamber 10. The entry nozzle 9 projects into a recess in the solid head 14 of the nozzle 13, with outlet slots 15, to form a restricted passage. Oil from a tube 20 is thinned in the nozzle 9 bv heat from steam or hot air entering from the tube 21, is thrown into the chamber through the restricted passage in a thin conical jet and atomized by the steam or hot air, the atomized fuel then passing through the slots 15 and tube 22 to the burner head 23.
Patent GB-530299-A (GB)
Title: Improvements in or relating to ball joints
IPC: F16C11/06
Filed: 1939-06-17
Abstract: 530,299. Ball joints. TAMPIER, R. June 17, 1939, No. 20160. Divided out of 530,144. [Class 65 (ii)] In a ball joint of the kind comprising a socket to receive the ball, means to retain the ball in the socket, and means permitting removal of the ball, the socket 2 is provided with two apertures through either of which the ball stem 4 may project. Specification 406,491 is referred to.
Patent GB-403754-A (GB)
Title: The manufacture of aldehydes of the benzanthrone series
IPC: C09B3/06
Filed: 1932-07-16
Abstract: Bz-1-benzanthrone aldehyde and its nuclear substitution products are obtained by treating bz-1-w-phthaliminomethyl-benzanthrone or a nuclear substitution product thereof with an oxidising agent in the presence of aqueous alkali, or by previously preparing the intermediate phthalaminic acid and converting it by oxidation into the aldehyde.  A catalyst may be employed.  According to examples: (1) bz - 1 - w - phthalimino - methylbenzanthrone is treated with air in presence of caustic alkali to give the bz-1-aldehyde which may be oxidised in customary manner to benzanthrone bz-1-carboxylic acid. The intermediatelyformed phthalaminic acid prepared according to any known method may be employed initially; (2) the 6-chloro derivative is similarly treated with air or sodium hypochlorite, and the 6-bromo derivative may also be employed.  Potassium ferricyanide and hydrogen peroxide are also specified as oxidising agents.  Ferric hydroxide may be employed as catalyst.  The starting materials are obtained by condensing benzanthrone or a nuclear substitution product thereof with w-halogen-methylphthalimide.  Specification 352,626 is referred to.
Patent GB-299901-A (GB)
Title: Improvements in lock nuts
IPC: F16B39/26
Filed: 1927-08-02
Abstract: 299,901. Buck, J. J. W. Aug. 2, 1927. Locking nuts. - A combined nut and rigid washer is formed with its under surface roughened or with shallow indentations and with the edge of the washer knurled. The nut has a less depth than the width of the flats. Specifications 1332684 and 5093/97 are referred to.
Patent GB-457400-A (GB)
Title: Improvements in portable weighing machines for locomotives or other rail vehicles
IPC: G01G19/04
Filed: 1935-07-17
Abstract: 457,400. Weighing-apparatus. LENTEN, A., and DENISON & SON, Ltd., S., Hunslet Foundry, Leeds. July 17, 1935, No. 20329. [Class 143] A portable weighing-machine for locomotives and other rail vehicles comprises a loose carrying member or horns portion 3 adapted to rest on the top surface of the rail, and a separate base member 1 with weighing levers 4, 5 and dial 6, adapted to be supported (for example by toes 26) on the carrying member, the carrying member being adjustable to suit different sizes of rails or diameters of wheels. The carrying member has hooks 18 taking over the top of the rail and one or both of the hooks may be adjustable to vary the distance apart in order to accommodate wheels of different sizes. To accommodate rails of various sizes and to bring the transverse portion of the carrying member into an horizontal position adjusting screws 22 abutting against the web of the rail are provided. In using the machine, the carrying member is first hooked over the rail and the toes 26 of the base member are placed on the carrying member with a stop 10 abutting against the wheel 8 as shown. This brings the knife-edge 7 of the lever 4 correctly beneath the wheel rim. A nut 15 is now rotated to withdraw the stop 10 and at the same time to raise the bearing block 12 of the fulcrum knife-edge 12A thus lifting the wheel off the rail and transferring its pressure through the second lever 5 to the indicating dial 6. To prevent derangement of the weighing parts during transportation, a bell-crank lever 28 actuated by rotation of the nut 15 presses upon the lever 4 when the machine is in the non - weighing condition. Specifications 27550/06 and 16211/12, [both in Class 143], are referred to.