baber/WOPTO huggingface dataset:
Patent GB-793154-A (GB)
Title: Improvements in or relating to railway braking systems
IPC: B60T8/32
Filed: 1956-08-17
Abstract: 793,154. Fluid pressure brakes. KNORRBREMSE GES. Aug. 17, 1956 [Aug. 19, 1955], No. 25291/56. Class 103 (1). In a fluid pressure brake system for railways of the kind wherein, if the wheels of a rail vehicle should begin to skid, an inertia mass, not shown, within a housing 3 operates to open a valve 5 releasing air from above a valve member 9, which is itself raised to put a flexible pipe 17 in communication with an opening 15, a safety valve 21 is interposed between the valve unit 2 and the control cylinder 47 whereby pressure from a reservoir 73 is admitted to a brake cylinder 81 in accordance with variations produced in a control valve 71 by the main air pipe 77. Thus if the flexible pipe 17 to the valve unit 2 should brake, air in chamber 25 will feed open valve 35 to vent the chambers 41 and 45 but later owing to the nozzle 39 being of larger dimensions than the nozzle 27, the piston 23 will be raised to shut the valve 35 and cut off the broken hose 17 from the remainder of the system.
Patent GB-358661-A (GB)
Title: Portable pneumatic life buoy, safety bathing and swimming float
IPC: B63C9/15
Filed: 1930-08-26
Abstract: 358,661. Lifesaving belts. HAWLEY, E., 9, Middlewood Estate. Oughtibridge, near Sheffield. Aug. 26, 1930, No. 25399. [Class 77.] An inflatable belt for lifesaving or swimming consists of an endless inflatable tube 4 having one or more flexible rings 5 loosely encircling it in a chain-like manner. A valve for inflation comprises a hollow stem enlarged at one end to form a valve chamber in which a ball is retained by bending over lugs formed by axial slots in the stem. A collar with a concentric groove and a nut with a washer having a corresponding rim enable the valve to be attached to the tube. The belt may be inserted in an inextensible cover to form an air cushion.
Patent GB-1037231-A (GB)
Title: Improvements in implements for cutting grass, hedges, bushes and the like
IPC: A01G3/047
Filed: 1961-07-13
Abstract: 1,037,231. Clippers. F. THOMAS. July 12, 1962 [July 13, 1961], No. 25428/61. Heading B4B. [Also in Division A1] An implement for cutting grass, hedges and the like comprises two discs 1, 2 pivoted together by a pin 5 and having teeth 3, 4, the discs being secured to handles 6, 7 which are movable towards and away from each other to rotate the discs relative to each other to effect cutting. Alternatively, disc 1 may be provided with a handle on which is slidable a control sleeve coupled by link members to disc 2, so that movement of the control sleeve along the handle causes rotation of disc 2 relative to disc 1. In a further embodiment, disc 2 is rotated by means of a motor mounted on a base plate carried by disc 1, a connecting rod pivoted to disc 2 at a point spaced from its axis being connected to the output shaft of the motor.
Patent GB-224354-A (GB)
Title: An electro-mechanical starting and stopping device, primarily designed for actuating photographic shutters, but applicable also for actuating other devices
IPC: G03B9/58
Filed: 1923-10-12
Abstract: 224,354. Lowen, C. G., Lingwood, C. P., and Pictorial Machinery, Ltd. Oct. 12, 1923. Addition to 208,773. Clock--work actuation.-In an electromechanical timing device, according to the parent Specification and more particularly for use with photographic shutters, the positive starting and stopping means for the clock 2, Fig. 2, consists of a right-angled lever 57 carrying a spring-blade 48 adapted to contact with the rim of the balance wheel 49, and a pin 61 on the lever 57 engaging in a slot 63 in an extension 60 of the control lever 32 on movement of which the lever 57 is moved to cause the spring 48 to start or stop the balance wheel 49 and clock 2. A spring 58 having an angular projection 62 engaging a pin 59 on the lever 57 ensures rapid movement of the lever 57 to start the balance wheel 32. In the construction described, positive holding down and releasing means for the control lever 32 is provided, and consists of a hook-like member 70, Figs. 2 and 5, engaging, on depression of the lever 32 by push-knob 50, with a like member 67 attached to a spring-controlled armature 34, the catch being released on completion of the time period by attraction of the armature 34 on energization of the electromagnet 35 by the closing of a normally-open switch 72, 74, Fig. 10. The switch consists of a contact-member 74 pivoted on an insulated base 73 and having attached thereto a rod 80 with an insulated cap 82 extending through a slot in the clock face 5. The clock hand 4 is adapted to contact with cap 82 on reaching zero, thus rocking member 74 against action of spring 78 into contact with contact-member 72, also on base 73, and causing energization of magnet 35 and release of arm 32, which is moved upwards by engagement of sliding piece 68 with a. part of the mechanism under control. This allows the device to be used in determining long exposures, without an extended use of the electromagnet 35, which might otherwise be overheated. The quick-pitched screw 28, Fig. 5, for effecting movement of fork-lever 26 is now actuated by the engagement of an arm 83 thereon with an arm 84 on lever 83. The arbor pinion 16, Fig. 2, engaged by rack-bar 21 for re-setting the clock hand is now geared to the minute arbor of the clock, the clock face being graduated in minutes for a time space of one hour and the minute hand replacing the seconds hand.
Patent GB-1210043-A (GB)
Title: Nickel-chromium alloys
Inventor: BIEBER CLARENCE GEORGE
IPC: C22C19/05
Filed: 1969-05-19
Abstract: 1,210,043. Ni base alloys. INTERNATIONAL NICKEL Ltd. May 19, 1969 [May 31, 1968], No.25459/69. Heading C7A. Nickel base alloys with good castability, resistance to oxidation and sulphidation at high temperatures and microstructural stability with high strength and ductility at 980 C., comprise:- the balance, apart from impurities such as up to 3% Fe, up to 0À5% each of Si, Cu and Mn and the lowest possible amounts of As, Bi, N, P, Pb, S, Sb, Se, Sn and Te, being Ni. The alloys may be used as cast, but are preferably heated at 1120-1180C. for 1-2 hours and aged at 815- 870 C. for 2-48 hours with an optical intermediate heating at 1024-1080C. for 2-8 hours. The alloy may be used for gas turbine blades, nozzle vanes and dies and other tools.
Patent GB-393145-A (GB)
Title: Improvements relating to sealing devices for can or other suitable closures
IPC: B65D45/32
Filed: 1932-09-15
Abstract: 393,145. Lids for cans &c. GRANT, BOUTLE, & CO., Ltd., H., Riley Street, Tower Bridge, and BENNETT, H., J., 6, Melgund Road, Highbury, both in London. Sept. 15, 1932, No. 26707. [Class 125 (iii).] A lever lid for a can &c. is provided with a sealing cap engaging in a recess in the lid and secured held in position at its outer margin by means engaging the can under the upper seam, one or more entry slots being left between the cap and the top of the can &c. for levering up the cap. As shown, the cap 1 is of annular form, having an inner beaded flange 2 and, depending from the flange 4, outer hook members 4 which are sprung over the can seam 6. Gaps 9 are left between the members 4a and for removal of the cap a coin may be inserted therein between the flange 4 and the seam 6, the cap bending as shown at weakened places 8, at which places may be positioned beads which crack and indicate that the seal has been removed.
Patent GB-714398-A (GB)
Title: A process for separating mixtures of cyclic hydrocarbons
IPC: C07C7/10
Filed: 1952-10-14
Abstract: Hydrocarbons having a quinonoid structure, e.g. anthracene, pyrene, and perylene, are separated from those of benzenoid structure, e.g. benzene, naphthalene, and phenanthrene, by treating the mixtures with a selective solvent containing fluorsulphonic acid, preferably at below 0, particularly -20 DEG  C. The initial mixture may be solid or liquid and is preferably dissolved in a solvent immiscible or only partially miscible with the fluorsulphonic acid.  The latter may be used with another solvent such as hydrofluoric acid which is selective to quinonoid hydrocarbons.  Extraction may be in one or more stages, continuous or batchwise.  A double solvent process may be used, the second solvent being, for example, benzene, xylene or saturated hydrocarbons.  In an example, a phenanthrene-anthracene mixture is dissolved in xylene, extracted at -20 DEG  C. with FSO3H, stratified, and the acid removed from the extract phase with water. The extract contains substantially all the anthracene, the raffinate substantially all the phenanthrene and most of the xylene.
Patent GB-1214189-A (GB)
Title: Methods of making thiophosphates
IPC: C07F9/553
Filed: 1968-05-15
Abstract: 1,214,189. Thiophosphate derivatives. SUMITOMO CHEMICAL CO. Ltd. 15 May, 1968 [17 May, 1967; 8 Sept., 1967; 11 Sept., 1967; 12 Sept., 1967], No. 25729/70. Divided out of 1,214,188. Heading C2C. Thiophosphates of the formula where R is C 1-5  alkyl, X is halogen or a C 1-5  alkyl group, n is 0, or 1 to 5, and M is alkali metal, are prepared by reacting a phosphorothionate of formula with an alkali metal hydrosulphide of formula M.SH. The reaction is generally carried out in a solvent at a temperature of 50-200 C., using preferably 1À1-1À2 moles of hydrosulphide per mole of phosphorothionate. The products are useful intermediates.
Patent GB-590572-A (GB)
Title: Improvements in signal translating devices
IPC: H04R21/02
Filed: 1944-12-22
Abstract: 590,572. Microphones; telephone transmitters. WESTERN ELECTRIC CO., Inc. Dec. 22, 1944, No. 25828. Convention date, Dec. 28, 1943. [Class 40 (iv)] A telephone instrument, such as a carbon granule microphone, comprising a pair of electrodes is such that the parts determining the spacing of the electrodes are constructed and arranged so that with temperature variations the net effect due to contraction or expansion of the said parts upon the electrode spacing is substantially zero. The parts supporting the two electrodes are constructed and arranged so that upon a change of temperature the supporting members for one electrode tend to increase the spacing between the electrodes and the supporting members for the other electrode to decrease it. In the carbon microphone shown, the diaphragm 12 which is held between an apertured face-plate 10 and a cylindrical spacer 30 carries a hemispherical electrode 15 associated with a flexible wall 21 and the inner surface 19 of the rear electrode 191 to form a chamber for the granules 22. The chamber is closed by a ring 23 threaded on the rear electrode which has a flange 20 clamped between spacer rings 25, 38 which respectively clamp a flange 26 of the wall 21 and centralize the rear electrode. The ring 25 is carried by a flange 27 of a spacer 28 which has a further flange 29 seated on the cylindrical spacer 30, the members 28, 30 being dimensioned to allow relative sliding movement at all temperatures. A locking ring 36 threaded into the flange 29 bears against a shim 37 mounted on the ring 38 and formed with ears fitting into slots 32 in the flange 29. The diaphragm and electrode assembly is mounted in a cylindrical ferrule having a supporting flange 34 for the face-plate 10. The casing 33 is crimped over the flange 29 and screws 42 threaded into the locking ring 36 provide connections to the front electrode. The spacer 30 and diaphragm 12 are preferably made of a material having a very low coefficient of expansion, e.g. the alloy known as " Nilvar," the ring 25 may be of ceramic material, the electrodes of brass, the support 28 of aluminium and the face-plate 10 of a phenolic condensation product. An approximate balance of the effects of contraction or expansion can be obtained by selecting the dimensions and materials of the face-plate 10, electrode 15 and support 28 as the effects of the diaphragm 12, spacer 30, back electrode 19<1> and spacer 25 are considered to be relatively unimportant. The dimensions and materials of all the members contributing to the electrode spacing may be correlated to provide an exact compensation of contraction or expansion on the electrode opening. A moisture-repellent screen 18 is included between the face-plate 10 and the diaphragm 12. The Specification as open to inspection under Sect. 91 refers to the use of an outer shield against moisture, the face-plate 10 being formed with radial ribs 41 to hold the material of the shield away from the apertures 11 of the face-plate. This subject-matter is not included in the Specification as accepted.
Patent GB-398027-A (GB)
Title: A method of producing on a strip a written record of sounds represented as phonograms on films or like records
IPC: G03B31/00
Filed: 1932-09-16
Abstract: 398,027. Transcribing work recorded on talking-picture films or the like. BARNSTIJN, L. C., 9, Hoefkade, The Hague. Sept. 16, 1932, No. 25832. Convention date, April 22, [Class 40 (ii).] Consists in a method of and apparatus for preparing on a paper or like strip a transcription of the words recorded on a film or like record such as is used in talking pictures, the written words being spaced along the strip in correspondence with the spacing of the original record. A translation in another language can then be written on the strip in appropriate relation to the original text. By the use of the translation thus prepared, a synchronized sound record in a language other than that originally used can be made. The apparatus used in accordance with the invention comprises a scanning device which enables the sound film to be " read " in sections. The film 1 is passed over a fixed annular guide 5, at the centre of which is provided a spindle 8 supporting an arm 9 which carries at its outer end a lamp 10. A photoelectric cell 13 is arranged in a casing 12, and may be adapted to rotate together with the spindle 8 and lamp 10. As the lamp is rotated over the part of the film wrapped around the guide 5, the light from it passes through the record and is focussed by an optical system (not shown) on to the cell 13. The starting point of the section scanned is given by the end of a fixed opaque screen 7 on the film guide 5, and the sound recorded on this section may thus be reproduced and heard by means of a head telephone. The words reproduced are written on a strip 17, which normally remains at rest adjacent to an indicating point 18. When the film 1 is moved to allow successive portions to be scanned, the strip 17 is displaced in conformity therewith by means of feed-mechanism 4, 15, 16. The positions of the lamp 10 and the cell 13 may be interchanged.
Patent GB-379868-A (GB)
Title: Self loading fire arm
IPC: F41A3/32
Filed: 1931-09-15
Abstract: 379,868. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, 7, U Lazaretu, Brunn, Czecho- Slovakia. Sept. 15, 1931, No. 25885. Convention date, Sept. 19, 1930. [Classes 92 (ii) and 119.] To enable the locking and unlocking movements of the breech-block 6 effected respectively by the engagement of control surfaces 36, 25 on the striker post 5 with corresponding surfaces 35, 26 on the breech-block to take place without vibration and consequent shock, guide means such as pins 42 on the barrel extension 2 engage suitably curved surfaces 43 on the sides of the breech-block. The curved surfaces 43 are shaped to provide a positive guiding means for the point 50<1> of the block along a path shown by the dotted line 50 as the block is rocked on the striker post to move its shoulder 16 into and out of locking engagement with the abutment 18<1>.
Patent GB-750772-A (GB)
Title: An improved sleeping-car trailer for motor vehicles
IPC: B60P3/34
Filed: 1954-09-07
Abstract: 750,772. Collapsible vehicles. PONIS, M. A. Sept. 7, 1954 [Sept. 7, 1953], No. 25901/54. Class 108 (1). The roof 3 is vertically movable and is supported on rods 4 sliding telescopically in tubes 5 secured to the fixed lower half 1 of the vehicle. The rods 4 are extended by means of endless chains 8 having driving pins 7 secured to the chains and the rods, said chains being actuated by sprockets geared to a single operating shaft 14. Between the roof 3 and the lower part 1 and secured thereto is a flexible covering 24 which is preferably double walled.
Patent GB-1182569-A (GB)
Title: Improvements in or relating to Keyboard Dialling Arrangements
IPC: H04M1/677
Filed: 1968-05-30
Abstract: 1,182,569. Keysenders. SIEMENS A.G. 30 May, 1968 [31 May, 1967], No. 25906/68. Heading H4K. In a keysender having a plurality of parallel slotted bars which are selectively displaceable by operation of a key so as to generate " dialling " signals, generation of the latter is inhibited if a particular digit key is operated first in a dialling sequence. The prohibited first digit may be " 0 " so as to prevent out-dialling from a PBX extension for example. The inhibiting means may consist in a common bar which is movable (and then locked) by any first digit 1-9 so as to open a short-circuit across, or, to close the circuit of, the dialling signal generator but which is so slotted that operation of the digit key 0 has no effect thereon (Figs. 2 and 3, not shown). Privileged subscribers may be provided with a special key for locking the common bar in its active position. The common bar may be returned to its inactive position by spring- action when a handset is restored to its rest.
Patent GB-964250-A (GB)
Title: Waterfall apparatus for use in theatrical stage and other representations
IPC: A63J5/00
Filed: 1963-06-29
Abstract: 964,250. Water devices. J. CURRIE. June 29, 1963, No. 25933/63. Heading A6M. [Also in Division F1] In a theatrical water apparatus having a weir tank 4 at a high level so that water flowing over the weir is directed towards the main tank 8 and means 9, 12 for recirculating the water, the weir tank is mounted on a wheeled vertical supporting structure 1 which has a forwardly and upwardly extending water receptacle pivoted to the bottom of the supporting structure so as to direct the water back to the main tank 8. Water is drawn from the main tank 8, made up of bolted sections, through pipe 9 by a pump 10 driven by an electric motor 11, and delivered through pipe 12 to weir tank 4 which has an internal baffle 13. The front of the supporting structure is covered by a waterproof canvas covered plywood sheet having fibre-glass rock-simulating formations 6 which provide cascades 7 when water spills from outlet 14. Receptacle 15 has a transparent front edge, a waterproof canvas lining and fibre-glass simulated rocks 8 and is hinged at 16 and supported by a hinged strut 17. Water flows out of receptacle 15 and through receptacle 19 via a waterproof canvas tube 20 into main tank 8.
Patent GB-1057357-A (GB)
Title: Combination trap and vacuum pump
IPC: H01J9/385
Filed: 1965-06-21
Abstract: 1,057,357. Vacuum pumps; baffles. UNITED STATES ATOMIC ENERGY COMMISSION. June 21, 1965 [July 9, 1964], No. 26060/65. Headings F1E and F1N. In a sorption type vacuum pump, Fig. 2 (not shown) comprising a gas tight outer casing (32) containing absorbent material (28) and having an inlet (43) connected directly or via a diffusion pump to a vacuum chamber, oil molecules backstreaming from a mechanical backing pump connected to the outlet (35) of the sorption pump are trapped therein by an oil sorptive metal mass (38). The absorbent material (28) which may be pelleted zeolite or activated alumina or charcoal is disposed within an annular space defined by a central stainless steel tube (21) for containing a cryogenic liquid e. g. liquid nitrogen and a co-axial copper sheath (23) lined by a copper screen (27) and provided with holes (26) for passage of the gas to be absorbed. A polished copper skirt (29) is arranged between the sheath (23) and the outer casing (32). The metal mass (38) is preferably in the form of copper, stainless steel, bronze or aluminium turnings and is arranged between two truncated conical members (33, 34) surrounding the outlet (35) and interconnected by ribs (37). A simplified sorption pump is described with reference to Fig. 1 (not shown). Various methods of operating the pumping system constituted by the sorption, diffusion and mechanical pumps are described. In one method the vacuum chamber is isolated from the sorption pump and the sorption pump is regenerated by heating while being evacuated by the mechanical pump. The mechanical pump is then isolated and communication is established between the vacuum chamber and the sorption pump which is then activated by cooling. The above method may be repeated, whereafter the diffusion pump is started and the sorption pump acts as a backing pump therefor. In a second method the mechanical pump is used to evacuate the sorption pump which is then connected to the vacuum chamber while being cooled by liquid nitrogen and the mechanical pump is allowed to continue to evacuate the whole system. The vacuum chamber is then cut-off from the sorption pump which is then re-generated by heating while being evacuated by the mechanical pump, and finally the mechanical pump is isolated after which the sorption pump is cooled and acts as a backing pump for the diffusion pump which is then started.
Patent GB-717668-A (GB)
Title: Improvements in ball-pointed pens
Inventor: OCHS HERBERT GESAJA
IPC: B43K7/04
Filed: 1950-10-26
Abstract: 717,668. Reservoir pens. MABIE TODD & CO., Ltd. Oct. 25, 1951 [Oct. 26, 1950], No. 26121/50. Class 146(3) A refillable ball-point pen has an air passage to the reservoir through the nib section, and there is a hard-wearing seating for the ball which may comprise a natural or artificial hard gem or "Monel" (R.T.M.) metal. As shown, the ball housing 10 is made of "Monel" metal or brass, and the seating 12 is of square section made from a natural or artificial gem, e.g. sapphire, ruby or spinel, and shaped to the contour of a 1 mm. diameter ball 13. In a modification, the entire ball housing 10. with an integral ball seating, is made of "Monel" metal. A silver or stainless steel feed tube 14 is pushed into the ball housing after the ball 13 is fitted therein, and the shank 15 of the housing pressed oval with the tube 14 in the centre; as the bore of the shank 15 is slightly larger then the outside diameter of the tube 14, two auxiliary feed holes will be formed, one on each side of the feed tube. Alternatively, a resilient plastic feed member, having a half-round cross-section, can be pushed into the shank 15 which is not deformed. The housing 10 is then fitted into a plastic feed section 16 having an external thread in which is cut a helical air intake groove 17, and the section 16 is screwed into an adaptor 18 carrying an ink sac 19. A hood 21 is screwed over the adaptor 18, leaving an annular space 20 around the section 16, and the whole assembly is then screwed into a barrel 22 having a lever 23 for collapsing the sac 19. A similar assembly without the sac 19 can be used, in which case the pen is filled by a "pumping" bottle &c. The annular space 20 serves as an overflow chamber. If an acid ink is used, a wetting agent is added together with a hydroscopic agent to prevent the ink from drying out inside the pen. Specification 611,119 is ' referred to.
Patent GB-688568-A (GB)
Title: Improvements relating to pistons for internal combustion engines
IPC: F16J1/04
Filed: 1950-10-27
Abstract: 688,568. Piston adjusting tool. CHAMBERLAIN, A. H. Oct. 27, 1950 [Nov. 9, 1949], No. 26244/50. Class 61 (ii). [Also in Group XXVI] A piston adjusting tool 15, Fig. 8, comprises hinged levers 16, 17 having on adjacent ends 21, 24 a single tooth 22 and a pair of teeth 23 respectively engaging a piston insert 11, Fig. 9, bridging a slot 8 separating skirt portions 6, 7 and deforming said insert on manual operation of a screw 26. On reversing the tool 15 so that the ends 21, 24 are respectively outside and inside the skirt, the insert 11 may have its curvature increased resulting in a reduction in the effective diameter of the piston (see Group XXVI).