baber/WOPTO huggingface dataset:
Patent GB-254122-A (GB)
Title: Improvements in or relating to ejector mechanisms for sporting guns
IPC: F41A15/06
Filed: 1925-07-30
Abstract: 254,122. Frommer, R. von. July 30, 1925. No Patent granted (Sealing jee not paid). Breech actions, drop-down barrel.-Relates to selective ejector mechanism of the kind having a spring-pressed hammer held by a sear, and a sear-tripping member slidably mounted in the action body. According to the' invention, the tripping member has a projection in a different plane from its working edge and is returned to its inoperative position during the breaking of the barrels by a cam surface on the fore-end acting on the projection. As shown, the sliding ejector hammer 15 is held by a pivoted sear 11. The sear-tripping member comprises a sliding bolt 6 adapted to be pushed out into the operative position, in which a step 8 thereon can engage the sear, by the head 3 of the stem of the sliding firing hammer 1. A spring-pressed detent 5 engages a bevelled recess in the tripping member and tends to hold it in its operative position. The member 6 is returned to its inoperative position, during the breaking of the barrels, by a cam surface 21 on the fore-end iron 19 engaging a side projection 9 on the member.
Patent GB-1145086-A (GB)
Title: Improvements in photosensitive detectors
Inventor: BERRY JOHN FREDERICK WILLIAM
IPC: G06K7/10
Filed: 1965-05-07
Abstract: 1,145,086. Photo - transistor circuits. PLESSEY CO. Ltd. 6 May, 1966 [7 May, 1965], No.19380/65. Heading H3T. A photo-sensitive detector comprises a phototransistor biased to operate in class A followed by a further transistor and another stage in cascade, the photo and further transistors having emitter circuits of such time constants that the emitter voltages tend to persist while the base voltages vary due to changes in the incident light. As described, the photo and further transistors are D.C. coupled in common emitter configuration, and the emitters have capacitors across the emitter bias resistors. The further stage is a common emitter transistor of complementary type.
Patent GB-963643-A (GB)
Title: Crushing machine
Inventor: HAHN EMIL
IPC: B02C13/28
Filed: 1961-05-29
Abstract: 963,643. Impact crushers. SCHUCHTERMANN & KREMER-BAUM A.G. FUR AUFBEREITUNG. May 29, 1961, No. 19384/61. Heading B2A. A crushing machine for impact milling grain comprises a rotor unit. 5 mounted within a housing 1 and provided with one or more beating arms 12 secured in wedge-shaped grooves 11 in the periphery of at least two axially-spaced discs 7. The discs 7 are spaced on a central shaft by sleeves- 8, 9 or are positioned in adjacent recesses in the shaft. If desired, the discs may be perforated to reduce their mass or formed as spoked-wheels. In operation, the arms 12 coact with a grinding face 2 which is pivoted on a spindle 3 and adjustable by a spindle 4.
Patent GB-1047834-A (GB)
Title: Preparation of enzymes
IPC: C12N9/48
Filed: 1965-05-10
Abstract: An aminopeptidase enzyme is prepared by culturing a fungus capable of producing enzymes which lyse L-leucine-p-nitranilide and L-cystine-bis-p-nitranilide (according to a specified test) and which also lyse L-leucinamide.  The fungus may be an Aspergillus, e.g. A. oryzae, A. sojae, A. parasiticus, A. melleus or A. flavus; the Aspergillus may be replaced at least in part by another fungus such as Rhizopus niveus, Trichoderma koningi, or Penicillium citrium. The enzyme may be purified by heating an aqueous solution containing a cobalt salt, which deactivates any other enzymes present, followed by salting out or solvent precipitation, and chromatography for example on DEAE-cellulose.
Patent GB-1215398-A (GB)
Title: Process for the production of aluminosilicates
Inventor: FURTIG HELMUT
IPC: B01J21/12
Filed: 1968-04-25
Abstract: 1,215,398. Aluminosilicates. CHEMIEKOMBINAT BITTERFELD VEB. 25 April, 1968, No. 19731/68. Heading CiA. Aluminosilicates are prepared by heating natural or synthetic zeolites, in which at least some of the ion exchange sites have been substituted by one or more cations of metals of Groups IA to IV A  and I B  to VIII B  of the Mendeleef Periodic Table, to above the decomposition temperature of the zeolite lattice. When it is desired to change the oxidation state of a metal ion, an oxidizing or reducing atmosphere is used during heating. If stability of oxidation state is required an inert atmosphere or a vacuum is provided. Examples include aluminosilicates made from zeolite A with silver, nickel and zinc, zeolite X with silver, zeolite Y with iron and synthetic mordenite with calcium and magnesium.
Patent GB-621138-A (GB)
Title: Improvements in or relating to electrical apparatus supports
IPC: G01R11/04
Filed: 1946-07-02
Abstract: 621,138. Switch covers. STANDARD TELEPHONES & CABLES, Ltd., HELLIER, W. H. M., McWHIRTER, E. M. S., and WARD, H. J. July 2, 1946, No. 19738. [Class 38(v)] [Also in Group XXXIX] A unit housing electrical apparatus e.g. relays, condensers, rectifiers, cathode tubes, or other telephone equipment, comprises a dust-proof housing 44, 31 guidably mounted on a connecting block 1, Fig. 2 (not shown) and having a detachable member 2, Figs. 3, 5 (not shown), which affords access to the wiring tags of the equipment. The block 1 is permanently mounted on a rack and the member 2, which forms.a rectangular frame closely fitting around the block 1, is removably hinged thereto and is held in place by a screw 49. The frames 2, 31 are of moulded insulating material and are secured together by screws inaccessible when the frame 2 is in position on the block 1. A transparent cover 44 is held in place on the frame 31 by a screw and nut 46, 48 on a strap 45 and may rest on a rubber gasket. Specification 621,139 is referred to.
Patent GB-726495-A (GB)
Title: Process for preparing acylamides
Filed: 1953-07-16
Abstract: Compounds of the formula <FORM:0726495/IV (b)/1> are prepared by reacting the corresponding amino-diols with phosphites or arsenites of the formula <FORM:0726495/IV (b)/2> at 20-110 DEG  C.; X is trivalent phosphorus or arsenic, Z is alkyl or aralkyl and R is hydrogen, nitro, phenyl, methylthio, methylsulphinyl or methylsulphonyl.  The reaction is preferably carried out at 60-85 DEG C. in an anhydrous organic solvent in the presence of one equivalent of mild alkali such as sodium bicarbonate, sodium acetate, calcium carbonate or an organic tertiary base.  The starting materials may be the D-, L-, DL-, erythro- or threo-forms.  The phosphite or arsenite ester may be prepared in situ.  In the examples the following 2 - aminopropane - 1 : 3 - diols are acylated with diethyl dichloracetyl-phosphite: D - (-) - threo - 1 - p - nitrophenyl, DL - threo 1 p - nitrophenyl, D (-) - erythro - 1 - p-nitrophenyl, D - (-) - threo - 1 - phenyl, DL-threo - 1 - p - diphenylyl, DL - threo - 1 - p-methylthiophenyl, D - (-) - threo - 1 - p - methylthiophenyl, DL - threo - 1 - p - methylsulphonylphenyl and D-(-)-threo-1-p-methylsulphonylphenyl.  In a further example, D-(-)-threo-1-p-nitrophenyl - 2 - aminopropane - 1 : 3-diol is acylated with diethyl dichloroacetyl-arsenite. Specification 652,273 is referred to.  Phosphites and arsenites of the formula <FORM:0726495/IV (b)/3> are prepared by reacting dichloracetic acid with a dialkyl chlorophosphite or chloroarsenite in the presence or absence of an inorganic or organic base.  The reaction of dichloracetic acid with diethyl chlorophosphite and diethyl chloroarsenite is described.
Patent GB-400363-A (GB)
Title: An improved method of and means for conditioning or reconditioning pipelines and the like
IPC: B05B13/06
Filed: 1932-07-13
Abstract: The internal surface of a pipe is coated with paint, bitumen, &c. by spraying or squirting the material on to the surface from a device progressively passed through the pipe.  The process may be applied to a laid pipe line in situ, and form part of a process for reconditioning the pipe line by first passing a scraper there-through, flushing out with water with or without subsequent drying by forcing a current of air through the pipe and then applying the spraying or squirting device.  In cleaning pipes in situ, a section thereof is isolated preparatory to the insertion therein of a scraper comprising a spindle 71, Fig. 1, carrying spider <PICT:0400363/III/1> <PICT:0400363/III/2> <PICT:0400363/III/3> <PICT:0400363/III/4> displace and rotate the scraper as water is applied to a funnel 70 at its rear end.  A wire brush may be used to complete the loosening of the encrustation in the pipe before the loosened material is removed by flushing.  The pipe is then dried and lined with bitumen by apparatus mounted on a trolley 4, Fig. 5.  A countershaft 9, driven by a motor 5, drives alternatively a compressor 19 supplying air to a storage container 20 or a fan 6 adapted to blow air through a conduit 7 and nozzle 8 into the pipe section 1 to be dried.  The pipe is introduced through one of two hatch boxes 2, 3.  After completion of the drying operation, a sprayer 33 connected by a pipe 34 to a bitumen container 32 is drawn through pipe from the hatch 2 to the hatch 3 ready to be drawn the arms 72 in the end of which are scraper blades 73 thrust outwards by springs (not shown).  The ends of the blades 73 are curved to facilitate insertion in the pipe through which the scraper is pushed by a telescopic arm mounted on a travelling carriage, the arm being rotated by a motor thereon. Alternatively, a turbine motor, comprising fixed and movable vanes 64, 62, Fig. 4, in a shell 63 and spring arms 68, 69 which keep it central in the pipe, may both opposite way by a rope 36 and winch 30.  The container 32 is provided with an inlet for compressed air supplied by the storage container 20, through a pipe 35 connected with a hose 26.  The pipe 34 leads to a nozzle 52, Fig. 10, in the sprayer which is supplied with compressed air through a passage 50 connected to the pipe 35, the mixture passing through radial passages 58 to rotary spraying arms 56.
Patent GB-815496-A (GB)
Title: Method of and materials for surfacing roads and the like
Inventor: FERGUSON JOHN MARTIN
IPC: E01C7/26
Filed: 1956-06-27
Abstract: A road surfacing composition comprises bitumen or tar bonding basic open hearth or basic essemer slag preferably having a content of dicalcic silicate and/or tricalcic silicate in the proportions 10-28 per cent for open hearth slag and 10-15 per cent for Bessemer slag, both by weight.  Additional material e.g. stone chips, may be added to the mixture.
Patent GB-813445-A (GB)
Title: Improvements in or relating to the electro-deposition of chromium
IPC: C25D3/04
Filed: 1955-07-08
Abstract: 813,445. Electrodeposition of chromium. DIAMOND ALKALI CO. July 8, 1955 [July 12, 1954], No. 19876/55. Class 41. Chromium is cathodically deposited from an aqueous solution of chromic acid and sulphuric, nitric, or hydrochloric acid together with the product obtained by chemically reducing to the trivalent state the hexavalent chromium of a mixture of chromic acid and hydrofluosilicic acid, the product containing chromium trifluoride and amorphous silica and/or silicon compounds. The ratio of H 2 SiF 6  to CrO 3  in the mixture used for producing the product may be from 1 : 1 to 3 :2. Suitable reducing agents are hydrogen peroxide and sulphur dioxide. The solution produced by the reduction may be spray dried at 315‹ F. The plating baths used may contain 100 to 600 g/l of chromic acid, up to 50 g/l of the said product and 0.5 to 2 g/1 of the above specified catalyst acids. The deposition may be effected at temperatures up to 160‹ F. and at current densities up to 3000 amps./sq.ft. Lead-tin alloy anodes may be used. To suppress chromic acid mistformation during the deposition, a foamproducing fluorinated hydrocarbon may be added to the bath.
Patent GB-1187496-A (GB)
Title: Improvements in or relating to Conveyors
IPC: B65G49/06
Filed: 1967-05-01
Abstract: 1,187,496. Flotation conveyers; endless conveyers. TSUBAKIMOTO CHAIN MFG. CO. Ltd. 1 May, 1967 [30 April, 1966], No. 19904/67. Heading B8A. Articles, such as sheets 4, being conveyed along a gaseous cushion conveyer M may be diverted to a branch conveyer B by a deflecting mechanism. In the embodiment shown, the deflecting mechanism comprises a pair of driven endless chains 17 supporting resilient pads 16 and mounted on a frame which is pivotally supported at one end 19 and, at the other end is supported by a ram 10. On extending the ram, the pads 16 are lowered into engagement with the upper surfaces of the sheets 4 which are thereby diverted on to the conveyer branch B. The articles are driven along the gaseous cushion conveyer by conveyer chains, Fig. 2 (not shown). In a modification, Figs. 4, 5 (not shown), the chains 17 run in guides, the end sections of which are pivotable about a horizontal axis. The chains may be replaced by an endless belt. In further embodiments, Figs. 9-12 (not shown), the deflecting mechanism comprises driven rollers or a driven endless belt adapted to be raised through an aperture in the conveyer M to engage the undersides of the sheets to propel them in the direction of the branch conveyer. In the embodiments of Figs. 2, 8 (not shown), the deflecting mechanism comprises a reciprocating pusher adapted to engage the edge or upper surface, respectively, of the sheet.
Patent GB-1043303-A (GB)
Title: Electrical components, especially electrolytic capacitors
Inventor: RUNTZ JEAN WILLIAM
IPC: H01G9/00
Filed: 1964-05-13
Abstract: 1,043,303. Capacitors. CONSOLIDATED ELECTRONICS INDUSTRIES CORPORATION. May 13, 1964, No.19962/64. Heading H1M. An electrolytic capacitor comprises a smooth tantalum wire 10, Fig. 3, welded at 14 to an etched tantalum wire which is wound into a tight helical coil 16, a tubular cathode 22, and a closure member 18 surrounding the smooth wire 10 and seated in the open end of the cathode. After assembly to the form shown in Fig. 3 the end of the cathode may be spun over into the bushing 18 as shown at 28 in Fig. 6. A nickel wire 30 may be welded at 32 to the wire 10 and an epoxy resin cap applied to cover the weld and most, but not all, of the joint between the cathode and the bushing. The cathode may be of silver and may be separated from the anode by one or more paper layers 20. The electrolyte may be an aqueous lithium chloride solution and the bushing 18 may be of P.T.F.E.
Patent GB-1087126-A (GB)
Title: Improvement in diving bell and decompression vessel combination and improved method for handling diving personnel
IPC: B63C11/44
Filed: 1966-05-06
Abstract: 1,087,126. Decompression vessels. M. P. BANJAVICH. May 6, 1966 [March 14, 1966], No. 20060/66. Heading B7U. [Also in Division E1] In a diving system comprising a diving bell (10), Fig. 5, having side and bottom openings each with a hatch and latching means therefor (see Division E1), the bottom opening providing means for a diver to leave and enter the submerged bell without water flooding it, and a pressure vessel (90) mounted on the deck of a marine platform, said vessel having an opening (92) in a side wall thereof with hatch means to control it and coupling means on the bell (10) and vessel (90) to secure and seal said side wall openings (12, 92) to one another whereby one or more divers may pass between the bell and the vessel while the interiors of same are maintained at the same pressure, the said vessel constitutes a decompression vessel and has a high-pressure chamber (100) in communication via a door (106) with the side wall opening (92) and hence with the diving bell and also in communication via a door (108) with a pressure chamber (102) which is in turn in communication via a door (108) with an entry compartment (104) having an entry door (110). The diving bell is raised to, and positioned on, a platform having a guideway (120) whereby the side openings (12, 92) are brought into alignment and coupled together so that persons in the bell can transfer to the vessel (90) and divers in the pressure compartment (100) can enter the bell.
Patent GB-201016-A (GB)
Abstract: 201,016. Brings, R. C. July 7, 1922. Racks.-A rack for newspapers &c. comprises two panels A, B spaced apart at their lower edges by a horizontal strip D which forms a rest for the articles between the panels. The front panel B has a lower grooved ledge H to support pens, pencils &c. and a ledge E carrying horizontally projecting holders G to receive tobacco pipes, keys &c. and a vertical holder F for letters &c. The lower ledge H may have notches in which the bowls of the pipes rest.
Patent GB-1328600-A (GB)
Title: Clip for attaching a cable or pipe to a surface
IPC: F16L3/13
Filed: 1972-05-01
Abstract: 1328600 Clips TOX-DUBEL-WERK RICHARD W HECKHAUSEN KG 1 May 1972 [18 June 1971] 20131/72 Heading E2B A clip made of resilient material and for attaching a cable or a pipe to a surface comprises a base 10 for connecting to the surface, spaced apart end walls 11 extending from the base and interconnected by lateral spaced apart side walls 15, each wall 11 having an aperture 12 of substantially circular cross-section and communicating with a slot 14 so that a cable or pipe can be positioned in the apertures to extend through the clip. Two spaced apart bridges 16 extend chordally across each aperture to grip the cable or pipe positioned in the apertures over more than 180 degrees of its surface. As shown, the bridges are parallel to one another, but may be kinked or arcuate and have serrations on the surfaces thereof.
Patent GB-364602-A (GB)
Title: Improvements in and relating to the cracking of petroliferous materials
IPC: C10G11/02
Filed: 1930-07-03
Abstract: In processes for cracking oils under pressure the asphaltic residues formed in the main still are continuously removed to an auxiliary still in which they are further treated preferably in the presence of catalysts at 300-500 DEG  C. under a pressure below 86 pounds per square inch, the products being returned to the main still.  Suitable catalysts are alkaline-earth bases, maximum valency chlorides of the polyvalent metals which are stable up to 350 DEG  C., and oxidizing agents such as chloride of lime.
Patent GB-1147460-A (GB)
Title: Improvements in or relating to wire wound bobbin type resistors
Inventor: ASHFORD COLIN JOHN
IPC: H01C3/20
Filed: 1967-05-02
Abstract: 1,147,460. Coil formers. MUIRHEAD & CO. Ltd. 16 Feb., 1967 [2 May, 1967], No. 20290/67. Heading B8M. [Also in Division H1] An insulating bobbin for a wire wound resistor consists of a cylindrical core 2 with cheeks 4 spaced along it, each cheek having a slot 9 which is tangential to the core's surface. One end cheek may be slotted radially. The other is not slotted but has notches to ensure the correct positioning of the bobbin in the wire winding machine.
Patent GB-205875-A (GB)
Title: Improvements in mechanism for varying the pitch of screw propellers
IPC: B64C11/36
Filed: 1922-07-25
Abstract: 205,875. Leitner, H. July 25, 1922. Screw propellers. - In propellers with blades having cylindrical stems and carrying worm gear actuated from a master pinion, the means for rotating the pinion for altering the pitch acts directly upon the pinion instead of through the medium of a shaft or other means. Each blade stem a carries a worm wheel f which gears with a worm g on a shaft which at its outer end has a spur wheel i, attached to or integral with which are two circular series of ratchet teeth j, j<1> and pawls k, k<1> are adapted to coact therewith. Attached to the boss is a disc n which carries pivoted levers l, l<1> on which the pawls k, k<1> and rollers o, o<1>, are mounted. The pawls are kept out of engagement normally by springs l<0> and by centrifugal action. To change the pitch, a cam p mounted on the engine e is lowered by screw and nut gear q, q<1> into the path of a roller o whereby on each revolution of the propeller, the roller o contacts with the cam and the pawl k rotates the wheel i through the space of one tooth. To alter pitch in the opposite direction, a second cam in a plane containing the roller o<1> is adjusted. In a modification, the cam p is replaced by a plane or curved surface which is moved into engagement with the roller. Alternatively the pawls may be carried at either end of a single pivoted lever. The setting of the blades may be indicated by mechanism linked to the adjusting gear. A series of propellers may be altered in pitch simultaneously. Specification 206,197 is referred to.
Patent GB-1027344-A (GB)
Title: Buckle mechanism
IPC: A44B11/25
Filed: 1963-05-22
Abstract: 1,027,344. Catches. A. G. CARTER and H. G. ALOFS. May 22, 1963 [May 31, 1962], No. 20358/63. Headings E2A and E2B. In a safety-belt knuckle having two overlapping members 11, 12 held in engagement by a'cam 21 which may be released by a lever 23, the cam and lever are rotatably mounted on a shaft 19 and are biased by springs 28 and 35 (Fig. 4, not shown) which are secured at one end to the shaft by being tightly wound around a portion of the shaft which has a flattened part. To secure the shaft against rotation of the mounting holes for the shaft has a D-shape and to secure the shaft against axial movement a notch in the shaft is arranged to embrace a side wall in which the shaft is mounted. The lever 23 is formed with a central bearing on the shaft 19. A belt 15 is connected to the buckle as described in Specification 1,027,602.
Patent GB-1343632-A (GB)
Title: Drivable handrail
IPC: B66B23/24
Filed: 1971-04-19
Abstract: 1343632 Escalator hand rails E KOCH 19 April 1971 [29 Jan 1970 1 July 1970] 20359/71 Heading B8A A drivable handrail for moving stairways comprises individual interconnected links 1, each link comprising a base 2 from which legs 3 depend, the handrail being driven by means of a gear 11 engaging with gear teeth 5 on the base 2, a guide frame 10 having lips 15 engaging a longitudinal groove 6 formed in the links 1, each link 1 being formed with a further groove 8 at one end and a tongue 13 at the other end, the links being interconnected by the engagement of the tongue 13 of one link with the groove 8 of the next adjacent link, a U-shaped compressible resilient insert 45 lines each groove 8 to provide resilient coupling with the associated tongue 13. In a second embodiment, Fig. 8 (not shown), the resilient insert is a round cord-like device (40), and in a third embodiment, Figs. 9-16 (not shown), tongues (13) are located at both sides of the teeth (5), a resilient clamping hook (47) being formed on each of the said tongues which hook into respective recesses (48) formed on each of the coupling pieces (76) in which the grooves (8) are formed.