baber/WOPTO huggingface dataset:
Patent GB-1028780-A (GB)
Title: Vibration damper for motor vehicles
IPC: F16F9/06
Filed: 1963-12-10
Abstract: 1,028,780. Hydro-pneumatic shock absorbers. FICHTEL & SACHS A.G. Dec. 10, 1963 [Dec. 11, 1962], No. 48730/63. Heading F2S. A hydro-pneumatic vibration damper for motor vehicles has a piston 2 displaceably guided in a working cylinder 1 on a piston-rod 4. The piston is provided with passages 3 in the form of bores or valves. The working cylinder is filled with a gas 10 and a liquid 11 in contact with each other, the gas filling being at the end of the working cylinder remote from the exit side of the piston-rod. A baffle element 8 having a central aperture 9 of layer cross-sectional area than that of the piston-rod is arranged between the piston and the gas filling and secured to the wall of the working cylinder. In the construction shown, the baffle element, on the assembly of the damper, is of dish shape and is subsequently flattened such that its periphery seals against the working cylinder. The baffle may be secured to the working cylinder by continuous or discontinuous beads of the cylinder wall (Fig. 2, not shown) or by clamping the baffle between two parts of the working cylinder (Fig. 3, not shown). The working cylinder is closed at its lower end by a cover 5 provided with two seals 6 and 7, the seal 6 serving as a filling valve.
Patent GB-1319137-A (GB)
Title: Production of pent-4-en-1-als and compounds of this type
IPC: C07C47/21
Filed: 1970-10-14
Abstract: 1319137 Pent-4-en-1-als BADISCHE ANILIN- & SODA-FABRIK AG 14 Oct 1970 [15 Oct 1969] 48803/70 Heading C2C Pent-4-en-1-als of formula in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> independently denote hydrocarbon radicals having one to forty carbon atoms which may contain oxygen atoms as heteroatoms and R<SP>1</SP> and R<SP>3</SP> may alternatively denote hydrogen atoms and any pair of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, together with the carbon atom or atoms which bear them as substituents, may alternatively form a five-membered to seven-membered ring and R<SP>4</SP> denotes alkyl, are prepared by reacting an allyl alcohol of formula at a temperature of from 100‹ to 350‹ C. with an α-formylcarboxylic ester having the general formula in which R<SP>5</SP> denotes an alkyl group. The compounds 2 - methyl - 4 - cyclohexylidenebutan- 1 - al, 2,5,9 - trimethyldeca - 4,9 - dien - 1 - al, 2,5,9 - trimethyl - 9 - methoxydeca - 4 - en - 1- al, 6 - ethyl - 2 - methyldeca - 4 - en - 1 - al, 2,5,9,14 - tetramethyltetradeca - 4,8,13 - trien- 1 - al and 2,5,9,13,17 - pentamethyloctadeca- 4-en-1-al are claimed per se. 2,5,9-Trimethyldeca-4,8-dien-1-al is also prepared.
Patent GB-1378484-A (GB)
Title: Soil compressing members
Inventor: VAN DER LELY A
IPC: A01B33/06
Filed: 1971-12-15
Abstract: 1378484 Soil compressing members C VAN DER LELY NV 15 Dec 1971 [18 Dec 1970] 48956/73 Divided out of 1378482 Heading A1B [Also in Division F2] The disclosure is included in that of Specification 1,378,482, but the claims are directed to a rotating compressing member with elongated elements which can be adjustably disposed around the axis of rotation in a variable helical manner.
Patent GB-1019148-A (GB)
Title: Improvements relating to apparatus for pumping liquid
IPC: F04F1/06
Filed: 1962-02-28
Abstract: 1,019,148. Discharging liquids under pressure. TUKE & BELL Ltd. and J. H. NEVILLE. Dec. 29, 1962, No. 48963/62. Heading F1R. Apparatus for intermittently pumping sewage or the like comprises a receiver 14 and a pair of conduits 18, 19 wherein the conduit 18 vents the air in the receiver and the conduit 19 is connected to a switch element 21 which is displaced when the liquid level seals the conduit 18. When the element 21 is actuated contacts 26 are closed, a timer 27 is energized and a solenoid operated valve 29 passes compressed air from a container 30 to a control valve 31. As shown, the valve shuttle 34 vents the receiver 14 to the atmosphere and the compressed air interrupts this connection to connect the conduit with the source of compressed air. The timer allows the supply of air completely to empty the container and may be continued to blow out any solid particles left therein.
Patent GB-1532280-A (GB)
Title: Gas-tight gallery lining for preventing and combating mine fires
IPC: E21F5/00
Filed: 1976-11-26
Abstract: 1532280 Underground gallery wall linings BERGWERKSVERBAND GmbH 26 Nov 1976 [23 Dec 1975] 49366/76 Heading E1F Lining of a gallery, primarily for the preventing and combating of mine fires, comprises laying strips of flexible, resilient, self extinguishing, anti static material over the roof and walls of the gallery so that the strips adjoin one another, securing the strips to the roof and walls, sealing the adjoining edges of the strips together and sealing the strips at the bottom of the walls to the gallery floor. The strips may overlap and may be secured to the gallery supports. The material may be a vulcanizable, chlorine-containing rubber, a chlorbutadiene rubber that may contain as filler 30% to 50% by volume of chlorparaffin or 50% by volume of hydrated aluminium silicate, or epichlorhydine containing 24 to 38% of chlorine, or a chlorsulphonated polyethylene with a chorine content of 26 to 43% by volume, or a polyvinyl chloride. Reinforcements of textile or wire fabric or fibre may be incorporated in the material.
Patent GB-1488908-A (GB)
Title: Computer line-printers
IPC: B41J11/42
Filed: 1974-11-19
Abstract: 1488908 Control of printers SPERRY RAND CORP 19 Nov 1974 [19 Nov 1973] 49931/74 Heading G4H A computer printer comprises means for detecting the occurrence of a LOAD FORMAT BUFFER command followed immediately by a RAISE COVER command and for thereupon giving a warning signal to the operator that he must align the forms in the printer. Command signals are decoded at 12c: the former command 12f<SP>11</SP> causes a vertical format buffer to store a signal at each memory location corresponding to a print line stopping point on a paper form being fed through the printer, while the latter 12f<SP>1</SP> activates the cover motor 69. Command 12f<SP>11</SP>, sets flip-flop 54; if command 12f<SP>1</SP> follows, gate 53 is enabled to set flip-flop 52 whose output illuminates a panel light 50 bearing a legend such as "align forms". Motor 69 may also be controlled manually 66, 67. The occurrence of any signal 12f other than 12f<SP>1</SP> after 12f<SP>11</SP> causes a gate 55 to reset flip-flop 54, which is also reset by a "stop printer" command 64 via a flip-flop 61.
Patent GB-1221707-A (GB)
Title: Improvements in overhead sprinklers for dry-conduit automatic fire-extinguishing installations
Inventor: JOB EDUARD
IPC: A62C37/10
Filed: 1968-10-22
Abstract: 1,221,707. Dry pipe sprinkler systems. SELBSTTATIGE FEUERLOSCHANLAGEN G.m.b.H. & CO. 22 Oct., 1968, No. 49987/68. Heading ASA. In a dry pipe sprinkler system, frostproof fluid 8 is carried in the downpipe 3 to the sprinkler head 5 inside a second pipe 7 of a synthetic plastic whose thermal expansion approximates to that of the fluid. The pipe 7 is closed from the extinguishing liquid network, preferably by a diaphragm 9.
Patent GB-1534614-A (GB)
Title: Process and a dryer for drying polychloroprene sheets
IPC: F26B3/04
Filed: 1976-12-01
Abstract: 1534614 Drying polychloroprene sheets BAYER AG 1 Dec 1976 [12 Oct 1976] 50078/76 Heading F4G Polychloroprene sheet is dried by blowing hot air on to both faces of the sheet. The sheet is conveyed through a housing by a porous or non-porous belt above and below which are arranged air nozzles, the housing being divided into two sections (heating and cooling) in series. Each section contains recirculating fans and has air inlets and outlets, the inlets in the heating section being connected to burners and the outlets to exhaust fans. Instead of being cooled by air, the sheets may be contact-cooled by metal surfaces.
Patent GB-1242489-A (GB)
Title: Arrangement for magnetically simultaneously actuating a plurality of movable members
Inventor: BAERMANN MAX
IPC: H01H36/00
Filed: 1969-10-13
Abstract: 1,242,489. Permanent magnets; magnetic switches. M. BAERMANN. 13 Oct., 1969 [21 Oct., 1968], No. 50102/69. Headings H1N and H1P. In a keyboard, plural keys 10, intersecting a fixed permanent magnet strip 5 alternately magnetized along its length with opposite poles, carry heads 7 permanently magnetized laterally with opposite poles, separated by non-magnetic guides 6. A further strip 2 laterally movable against spring 3 by button 11 is alternately magnetized along its length with opposite poles, and the lateral pole pitches are similar, while, magnetic poles at the upper and lower faces of heads 7 are respectively opposed to those on strip 5 and on strip 2 in the rest position shown. Thus undepressed keys are retained in contact with strip 5 and depressed keys with strip 2 until the latter is moved laterally, when the heads 7 are repelled from strip 2 into attraction by strip 5. Dry reed switches (Fig. 2, not shown) may be provided in the field of operation of heads 7 for magnetic operation on key depression. The permanent magnets may be of barium, strontium, or lead ferrite, moulded plastic containing ferro magnetic material, or individual magnets on ferromagnetic carriers.
Patent GB-1123009-A (GB)
Title: Keeper device
Inventor: DAVY JOHN RAYMOND
IPC: F16B2/24
Filed: 1965-11-25
Abstract: 1,123,009. Spring clips. DAYTON PERFORATORS Inc. (J. R. DAVY). 25 Nov., 1965, No. 50140/65. Heading E2B. A keeper device comprises a single length of resilient wire coiled upon itself at its approximate centre to form a loop 11 and two end portions, the first sections 18 to 15 of which project therefrom in substantially the same sense, each end portion being divided into the first section which extends tangentially from the loop without crossing the other first section, and a second section 14, 16 which is bent with respect to the first section the first section of one end portion being inclined towards the first section of the other portion and the second section of said one end portion being bent into a seating 17 opening towards the second section of the other end portion which is bent to extend in the direction of said seating. In the construction shown the seating is substantially V shaped. The keeper is used to hold a spring biased ejector pin 25 of a piercing type punch in the body of the punch to facilitate guiding of the working face 21 of the punch; for this purpose the punch body is provided with a radial aperture 29 which opens to a passage portion 23 immediately adjacent the shoulder 24 of the pin; when the keeper is in use the second portion 14 is positioned in the aperture 29 and engages the shoulder to prevent the pin protruding from the working face 21. The keeper is held in place by the seating engaging the body of the punch on the opposite side of the body to that provided with the aperture 29.
Patent GB-1476047-A (GB)
Title: Sugar treatment
IPC: B04B3/00
Filed: 1975-12-08
Abstract: 1476047 Centrifugal strainer and sugar treatment; mixing liquids BRAUNSCHWEIGISCHE MASCHINENBAUNSTALT 8 Dec 1975 50273/75 Headings B1C and BID Sugar crystals are separated from one liquid while passing up the wall of a frusto-conical centrifugal filtering drum 3 and thrown radially from its upper edge where they intersect downward jets of a second liquid from annular spray tube 14, resulting in mixing of the liquid and crystals in a space enclosed by belllike fixed casing 18. Assisted by the air currents created by rotating drum 3, the mixture is forced under the lower edge of casing 18 and over annular weir 22, finally being discharged (23) as a sugar solution, which may be further filtered and crystallised again or inverted for use as a sugar solution. Inner casing 13 catches the liquid passing through the wall of drum 3. The second liquid may be hot water or sugar solution, and valves (16, 10) which control the flow of second liquid to spray tube 14 and sugar crystals and first liquid to drum 3 (Fig. I not shown) are automatically adjusted in response to variations in temperature of the solution discharged through pipe (23), to maintain said temperature and consequently the sugar content of the solution constant. This assumes that the delivery temperatures of both liquids are constant. A pressure meter (37) opens valve (39) to deliver an alternative feed of second liquid to spray tube 14 if the normal feed from tube (17) fails. Nozzle tubes (11) in the drum are supplied with water or steam, and steam is also fed into the drum with the first liquid and crystals by feed device (8).
Patent GB-1271494-A (GB)
Title: Filtration apparatus
Inventor: BAILEY PETER HENSHAW
IPC: B01D29/15
Filed: 1968-05-09
Abstract: 1,271,494. Press filter. L. B. HOLLIDAY & CO. Ltd. 2 May, 1969 [9 May, 1968; 24 Oct., 1968], Nos. 22009/68 and 50525/68. Heading BID.  A hollow, perforate, cylindrical core 1 is covered by sheet filtering medium and is axially movable into and out of a cylindrical housing 2 which is lined by an inflatable sleeve 5. Slurry pumped or flowing under gravity into space 13, between the medium and diaphragm, is first allowed to drain through the medium, then the inlet valve is closed and sleeve 5 inflated by compressed air or water, forcing more of the liquid content of the slurry through the medium to outlet 23. The sleeve is deflated, the pressure fluid being returned to its storage tank, and the core 1 is withdrawn from the housing by ram 24, carrying the adhering filter cake, which is then removed. In Fig. 1, ram 24 moves the core and end plate 17, to which it is secured by struts 25 which extend through slots 27 in hollow shaft 3 along which the core slides. Ram 24 is pressurised to hold the core in its inserted position in Fig. I, but Figs. 10 to 13 (not shown) illustrate an arrangement of latches which lock plate 17 to the housing, after which the ram pressure need not be maintained. Figs. 4, 5 (not shown) illustrate the annular seals which close the two ends of space 13 when the core is inserted. Fig. 6 (not shown) illustrates a preliminary screen across slurry inlet 22, and Figs. 7, 8, 9 (not shown) illustrate the construction of the core, which is covered by a rubber sleeve (64) having external, axial and circumferential grooves to drain the filtrate to openings (19). The filtration may be preceded by applying a filter aid of carbon or diatomaceous earth to the filtering medium, and the filter cake may be washed and dried by passage of hot gas before withdrawing the core. The filtering medium may be cleaned by backwashing. Fig. 14 (not shown) illustrates the circuits for slurry, filtrate and pressure fluid. The housing may be metal lined with rubber or chlorinated polyester. The filtering medium may be cloth, secured to the core body by rubber rings or plastics braiding. Various applications are suggested, particularly recovery from suspension of Acid Yellow 17 and 2 naphthol-3, 6-disulphonic acid.
Patent GB-1144340-A (GB)
Title: Improvements in or relating to cutter tools and mountings therefor
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C35/187
Filed: 1965-03-16
Abstract: 1,144,340. Dust-suppressing, water-spraying mineral-mining picks. AUSTIN HOY & CO. Ltd. 11 Feb., 1966 [16 March, 1965], No. 50576/68. Divided out of 1,142,141. Addition to 1,142,141. Heading E1F. The mineral-cutting pick and pick support assembly of Specification 1,142,141 is provided with supply means 48 to and discharge ports 44, 46, 47 from a reservoir incorporated in the support 40 of the assembly to ensure a delivery of dust-suppressing liquid to the cutting zone of the pick 10. A gravity controlled valve may be provided at the outlet from the reservoir when the assembly is mounted on a cutter drum to provide controlled cut-off of liquid to the pick.
Patent GB-1067670-A (GB)
Title: Improvements relating to trigger circuits
IPC: H03K3/315
Filed: 1963-12-28
Abstract: 1,067,670. Tunnel diode bi-stable and logic circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 24, 1963 [Dec. 28, 1962; March 14, 1963], No. 51011/63. Heading H3T. A trigger circuit comprises a bi-stable device the state of which is controlled by current at a node provided by a control circuit responsive to two binary signals and the state of the bi-stable device so that switching of the bi-stable device in one sense requires simultaneous presence of a first and a second signal whilst switching in the other sense requires the second signal and the simultaneous absence of the first signal. The bi-stable device may be formed by a single tunnel diode or, as shown in Fig. 1, by a bi-stable pair of tunnel diodes 20, 22. The circuit is controlled by data pulses at 14 and clock pulses at C. Initially transistors 28, 30 are non-conductive and diode 26 conductive so that the current flowing out of the node 19 maintains the tunnel diode 20 in its high-voltage state and tunnel diode 22 in its low-voltage state, giving a lowvoltage output at O. When a negative data pulse is received at 14 current Ic becomes reduced but not sufficiently to change the stateof the bi-stable circuit 18 until a clock pulse is also received at C when transistors 28, 30 become conductive, turning off diode 26 and increasing the current into node 19 so as to set the tunnel diodes 20, 22, respectively, into their low- and high-voltage states giving a high-voltage output at O. This state is maintained until a clock pulse is received at C after the termination of the data pulse at 14, when transistors 28, 30 again become conductive, but, since the bi-stable circuit 18 is in its high-voltage state, diode 26 continues to pass current IC. The combined currents IC, IC1 are sufficient to reset the circuit 18 to its low-voltage state. In Fig. 4 the transistor 60 is initially conductive and transistors 62, 68 non-conductive so that the bi-stable circuit 50 comprising a pair of tunnel diodes is initially in a low-voltage state. On coincidence of a clock pulse at C and a data pulse at D, transistors 68, 62 become conductive and 60 non-conductive, setting the bi-stable circuit 50 to its high-voltage state. This state is maintained until a clock pulse arrives at C in the absence of data at D when 68 becomes conductive and 60 remains conductive so that the sum of currents Ib + Ia is sufficient to reset the bi-stable circuit 50 to its low-voltage state. Fig. 6 shows a bi-stable circuit comprising a pair of tunnel diodes 220, 222. When the circuit is in its low-voltage state diode 242 is reverse biased. The coincidence of a negative clock pulse at 270 and data signal at 278 causes a current I1 which switches the circuit to its high-voltage state in which diode 244 is reverse biased. The circuit is reset by a negative clock pulse at 270 which causes the current 12 which resets the circuit in the absence of data at 278.
Patent GB-1076367-A (GB)
Title: Gas turbine engine
Inventor: JACKSON DESMOND GEORGE COLTHUR
IPC: F01D25/16
Filed: 1965-12-01
Abstract: 1,076,367. Gas turbine plant; turbines. ROLLS-ROYCE Ltd. Dec. 1, 1965, No. 51098,/65. Headings FIG and F1T. [Also in Division F2] The housing 27 of the rear turbine bearing of a gas turbine engine is supported by a series of circumferentially spaced hollow radially extending struts 21 secured to the housing by bolts 26 and to the engine outer casing by bolts 23. Each strut 21 is enclosed by a further strut 18 which supports the exhaust cone 17 from the jet pipe 16. The bearing housing 27 consists of two axially spaced annular members 28 held together by the bolts 26 and further bolts 31 which also retain the outer race 32 of the bearing rollers 33 in position. The construction enables individual struts 21 or the entire housing 27 to be replaced in the event of damage.
Patent GB-1450089-A (GB)
Title: High alumina refractories
IPC: C04B35/105
Filed: 1973-11-05
Abstract: 1450089 High alumina refractories CHAS TAYLORS SONS CO 5 Nov 1973 [24 Nov 1972] 51342/73 Heading C1J A high alumina refractory composition comprises (a) 75 to 97%, based on the weight of the composition, of an alumina refractory raw material (defined), 65 to 94 wt. per cent of which has a particle size of from -“ inch to + 325 mesh, the remainder being - 325 mesh (Tyler) and (b) 3 to 25%, based on the weight of the composition of iron chromite ore having a particle size of - 325 mesh. The alumina refractory raw material must contain at least 50 wt. per cent Al 2 O 3  and can be an alumina ore, e.g. bauxite, diaspore, kyanite; and non ore material, e.g. sillimanite and mullite, or a mixture of tabular and calcined Al 2 O 3 .
Patent GB-1507992-A (GB)
Title: Photosensitive epoxy resin composition for image formatio
IPC: C08G59/00
Filed: 1975-12-16
Abstract: 1507992 Photosensitive epoxy resin compositions ASAHI KASEI KOGYO KK 16 Dec 1975 [20 Dec 1974] 51440/75 Heading C3B [Also in Division G2] A photosensitive composition for image formation comprises: (I) an epoxy resin; (II) an amine curing agent and (III) a reductive compound or its complex having the formula MXn, where M is Ag, Cu, Pb, Tl, Fe, Co, Mn, Pt, V, Te or uranyl, X is halogen or carboxylate and n = 1-4. I may be a glycidyl ether of bisphenol A or of bisphenol F, an epoxy novolac resin or a glycidyl (meth)acrylate (co)polymer. II, which may be used at 0À5-70 parts by weight per 100 parts by weight of I, may be an aromatic primary or secondary amine or an amine which can form a chelate with a reduced compound. Examples of III, which may be used at 0À1-10 moles per mole of II, are FeCl3, CuBr2, FeBr3, TeCl4 and ferric ammonium oxalate.
Patent GB-1203237-A (GB)
Title: Electrophotographic plate
IPC: G03G5/06
Filed: 1967-11-13
Abstract: 1,203,237. Electrophotographic plate. RANK XEROX Ltd. 13 Nov., 1967 [14 Nov., 1966], No. 51556/67. Heading H1K. [Also in Division C7] An electrophotographic plate comprises a photoconductive layer on a conductive support, the layer comprising selenium, selenium compounds or selenium alloys and a solid hydrophobic metal salt of a fatty acid. The electrophotographic plate is produced by simultaneously heating a photoconductive material consisting of selenium, a selenium compound or a selenium alloy and a solid hydrophobic metal salt of a fatty acid under vacuum and simultaneously condensing the vapours of the material and the salt on to a cool conductive substrate maintained at a temperature below the melting point of the material and the salt. Tellurium and arsenic alloys of selenium may be used or a mixture of selenium and arsenic trisulphide. The salt may be Ba, Pb, Ni, Co, Cu, Fe, Sr, Ca, Cd, Mg, Zn, Mn, or A1 stearate, oleate, palmitate, caprylate, caproate, linoleate or ricinoleate but other fatty acids are specified. The conductive substrate may be brass, Al, Au, Pt or steel, conductively coated glass, metallized paper or laminates of paper and metal. It is suggested that the presence of the salt reduces friction on the surface of the plate during development and cleaning processes. Crucibles 22 and 24 containing the salt and the material are heated by wires 18 and 20. The conductive substrate 32 is attached to a platen 28 cooled by tubes 30 which are shielded from the vapours by plate 38. It is preferred that evaporation of the selenium component be initiated prior to vaporization of the salt.