baber/WOPTO huggingface dataset:
Patent GB-1420763-A (GB)
Title: Apparatus for the proteciton of a controlled semiconductor arrangement
IPC: H03F1/52
Filed: 1972-12-20
Abstract: 1420763 Change-speed control ROBERT BOSCH GmbH 20 Dec 1972 [24 Dec 1971] 58717/72 Heading F2D [Also in Division H3] A controllable semi-conductor arrangement 11 suitable for connection at 13 to a change speed gear-box of a vehicle (not shown) and including at least as an input stage a transistor 12 and having a switch path which is in series with a load device, e.g. a relay 16, and a measuring resistor 21 is provided with a protection device including a controlled semi-conductor rectifier 22 whereby with an excess of load current, the voltage across resistor 21 exceeds the threshold voltage of rectifier 22 which is fired to provide a D.C. shunt path at 13 which is in parallel with the series combination of the control path of the arrangement 11 and resistor 21. The arrangement 11 may, for example, include a Darlington combination of transistors instead of a single transistor 12. A damping capacitor 26 ensures that the rectifier 22 is not triggered by transient pulses. In the alternative embodiment of Fig. 2 (not shown), the cathode of rectifier 22 is connected to a tapping on a voltage divider 27, 28 and resistor 23 is replaced by a temperature compensating diode. A number of arrangements 11 may be protected by the same rectifier 22 (Fig. 3, not shown) by providing separate resistors 21 in the respective load circuits and coupling them via isolating diodes to the rectifier 22.
Patent GB-1335547-A (GB)
Title: Non-woven fabrics
IPC: D04H1/65
Filed: 1970-12-10
Abstract: 1335547 Non-woven fabric CARL FREUDENBERG 10 Dec 1970 [12 Dec 1969 (2)] 58745/70 Headings D2A and D2B [Also in Division B5] An absorbent non-woven fabric comprises a sandwich of a substantially unbonded central layer of absorbent fibres and a particulate thermoplastic bonding agent between two water-permeable surface layers, each surface layer comprising a bonded fibre fleece, the layers of the sandwich being spot or line bonded together as a result of fusion of the thermoplastic bonding agent. The fibres in the central layer may be cellulosic and those in the surface layers may be naturally occurring e.g. cellulosic and/or synthetic e.g. nylon, polyester, rayon, or polypropylene. The surface layer fleeces may be bonded by a naturally occurring binder e.g. collagen or by a synthetic binder e.g. an acrylate. The particulate thermoplastic bonding agent, which may be introduced in fibrous or powder form, may be polyvinyl acetate or cellulose acetate. The fabric may be made by dry or wet laying processes. Thus, a mixture of absorbent fibres and particulate bonding agent may be formed into a fleece which is sandwiched between the two bonded surface fleeces, made by conventional methods, and the sandwich subjected to embossing under heat to produce the spot or line bonding. Alternatively, three aqueous dispersions corresponding to the three layers of the sandwich may be prepared and the dispersions filtered in turn through a screen to form a wet sandwich, which is dried so as to activate the bonding agent in the surface layers, and hot pressed to produce the spot or line bonding. The sandwich may also be formed by forming the fleeces and central layer separately and laminating them together. Paper-making apparatus. Apparatus suitable for making the non-woven fabric comprises an endless screen 4, ducts 1, 2, 3 for feeding fibrous dispersions to the screen, and suction boxes 11 for draining water from the web formed on the screen. A plate 15 may be located above the screen to reduce turbulence.
Patent GB-1147830-A (GB)
Title: Method of producing glasses having a low water content
IPC: C03C3/087
Filed: 1967-12-29
Abstract: 1,147,830. Making glass. CORNING GLASS WORKS. 29 Dec., 1967 [29 Dec., 1966; 13 Nov., 1967], No. 59040/67. Heading C1M. A glass having a low water-content is made by mixing in the batch a chemically reactive chlorine-containing compound, and melting with a dry atmosphere flowing directly over the melt. The compound is anhydrous and normally a solid stable up to 100‹ C., and may be a chloride of Li, Na, K, Rb, Cs, Tl, Ag, In, Au, Be, Mg, Ca, Sr, Ba, Zn, Cd, Pb, Hg, Ga, Zr, Sn, Te, Al, Sc, Ti, Y, La, Bi, Sb, Se, Hf, Nb, Mo, Ta, or W. Preferable chlorides are those of alkaline earth metals, Zn, Cd, Pb, or Al. 3-10 moles per cent CaCl 2  may be used. The batch is melted at 1500-1650‹ C. Base-glasses include calcium aluminosilicate, calcium aluminogermanate, soda-lime, borosilicate, lead glass, germanate, and tellurite glasses. The method cannot be used for fused silica or 96% silica glasses. During melting Cl atoms from the compound displace OH groups in the glass network. Water formed during this reaction is removed by the dry atmosphere, e.g. air, N 2 , He, Ar, O 2 , CO 2 , or SO 2 . Glasses made by this method include I.R.-transmitting glasses and glasses for lamps, e.g. for the envelopes of high-temperature vapour lamps.
Patent GB-1327155-A (GB)
Title: Book-like product and method for opening said product and introducing an insert therein
IPC: B42F21/00
Filed: 1971-12-21
Abstract: 1327155 Indexing FERAG FEHR & REIST AG 21 Dec 1971 [12 Jan 1971] 59309/71 Headings B6A and B6E A book, brochure, pamphlet or journal 1, Fig. 1, is provided along an edge 6 opposite the spine 5, or along adjacent edges, with a number of index locations 4 corresponding to the number of text sections, e.g. 5, indicated at the upper page 2 and to open the book readily at a selected sections each index location is formed by a pair of strips 8, Fig. 2, of plastics material, such as polyethylene, applied to opposed faces of adjacent sheets at the selected section, the strips having a lower coefficient of friction than the sheets. The strips may be formed by dry lubricants such as talcum, stearic acid anhydrides or soap. For the purpose of opening the books at successive index locations for introduction of inserts the books are passed spine down along a number of opening stations in a machine which advances the books intermittently past the stations by an endless belt (23, Fig. 5) and associated press arm (25) and the books are opened by appropriately spaced pushers (15) reciprocated in the vertical plane.
Patent GB-1334975-A (GB)
Title: Method of preventing the polymerization of unsaturated aldehyde
IPC: C07C45/86
Filed: 1971-12-22
Abstract: 1334975 Unsaturated aldehydes NIPPON ZEON CO Ltd 22 Dec 1971 [26 Dec 1970] 59753/71 Heading C2C The polymerization of unsaturated aldehydes (e.g. acrolein or methacrolein) in an alcohol solution is prevented by incorporating into the solution as a polymerization inhibitor, a hydroxylamine of formula R 1 -NOH-R 2  wherein R 1  is hydrogen or an acyclic or cyclic hydrocarbon group having 1-8 C atoms or a hydrate or salt thereof in an amount sufficient to inhibit polymerization e.g. in the range 0À001 to 3% by weight based on the monomer.
Patent GB-1286963-A (GB)
Title: Improvements in or relating to a dilactone derivative of a benzophenone hexacarboxylic acid
IPC: C07D493/22
Filed: 1969-12-10
Abstract: 1286963 Plasticizer GELSENBERG BENZIN AG 10 Dec 1969 [11 Dec 1968] 60331/69 Heading C3P [Also in Division C2] A polymer composition contains as plasticizer an ester of a novel compound of the formula i.e. a benzophenone-hexacarboxylic acid- 4,5,4<SP>1</SP>,5<SP>1</SP>-dianhydride-2,2<SP>1</SP>-dilactone (see Division C2). An example describes adding a novel compound as above esterified by means of an alcohol. to P.V.C., a stabilizer and a release agent.
Patent GB-1336739-A (GB)
Title: Imaging on a reusable imaging surface
IPC: G03G21/00
Filed: 1970-12-21
Abstract: 1336739 Cleaning processes XEROX CORP 21 Dec 1970 [30 Dec 1969] 60538/70 Heading G2H Residual liquid remaining on a surface 10 after transfer of a liquid image therefrom is removed by applying a film forming cleaning material which has a melting point above room temp. and which wets the surface and forms a film (the material being applied as a liquid or as a solid which is subsequently liquified) and removing the film together with the residual liquid. As shown, the surface 10 is charged at 11, exposed at 12, liquid developed at 13 and the liquid image is transferred to a receiver 16. A sponge roller 23 applies the material and melts it by friction and a web 18 removes the resulting film and the residual liquid developer. Cleaning materials are listed, waxes being preferred. They are applied by brushing, cascading, spraying, or by webs, rollers, sheets or wadding, or by moving the surface 10 past a solid stick of the material, and are removed by webs, blades, rollers or brushes.
Patent GB-1370619-A (GB)
Title: Operation of compression-ignition engines
IPC: F02D19/10
Filed: 1971-12-15
Abstract: 1370619 Regulating IC engine fuel supply ESSO RESEARCH & ENG CO 15 Dec 1971 [23 Dec 1970] 61038/70 Heading F1B A compression-ignition engine is supplied with liquid fuel up to 60% full load, and in addition is supplied with gaseous fuel, e.g. LPG, above 60% of full load, under the control of a valve 17, at a rate varying progressively with load. The liquid fuel may be supplied by an injection pump 18 having a control rod with an extension 21 which abuts the valve stem 19 at 60% of the full fuel supply and progressively increases the gas flow area around the valve head 22 as the liquid fuel supply is increased. A solenoid valve 12 which opens the gaseous fuel supply line 11 when the engine electrical circuit is energized and a water heated vaporizer 14 are provided between the LPG tank 10 and the valve 17. In a further embodiment, Fig.2  (not shown) the solenoid valve 12 controls the gaseous fuel supply, a micro-switch (12d) being operated by a cam (21a) formed on the extension 21 of the pump control rod to vary the power supplied to the solenoid valve. The solenoid valve circuit includes diaphragm switch (33) which when subjected to vacuum in the gas supply line (34) to the intake manifold on starting opens the circuit.
Patent GB-1282810-A (GB)
Title: Changing the ratio of a hydrodynamic vehicle transmission
IPC: F16H41/22
Filed: 1970-12-30
Abstract: 1282810 Hydrodynamic transmission control VOITH GETRIEBE KG 30 Dec 1970 [31 Dec 1969] 61722/70 Headings F2C and F2D In an hydrodynamic transmission, e.g. for gas turbine driven rail vehicles, having a low speed torque converter I and a parallel arranged high speed fluid coupling II, ratio change, by emptying one and filling the other, is effected by completely filling the other before initiating the emptying of the one, at least when changing from converter drive to coupling drive. As shown, the change is effected manually by a lever 14 which pivots a control finger 24 when moving from its converter to its coupling position, to slide a valve 15 to an intermediate position in which the output 11 from an inputdriven pump 10 is connected to the converter filling line 16 and, through an adjustable restriction 27, to the coupling filling line 17. On completion of filling of the coupling, the increase in pressure in line 17 acts via a line 28 on a piston 21 fast with the valve 15 to move the valve to its lowest position cutting off converter filling line 16 and connecting the pump output to the line 17 via a line 28<SP>1</SP> bypassing the restriction 27. Closing line 16 allows a discharge valve 19 to open to connect the converter discharge line 18 to the sump 13. The common converter and coupling output shaft 6 drives through a mechanical reversing gear. In Fig. 2 (not shown), the change from converter to coupling drive is effected automatically by a device (30) which compares input and output speed signals derived from the pump 10 and shaft 6 respectively, to produce converter and coupling signals (32), (33) controlling a valve (34). The valve includes a three-part piston (35), (36) and (37), the coupling signal (33) forcing the parts (37), (35) to an intermediate position to engage the coupling, in which position they are maintained by throttling the fluid (33), acting on the part (37), through an outlet port (39) to a relief valve (40) which is closed by the increase in pressure in the coupling filling line when filling is completed. On closure of valve (40), the pressure (33) acting on piston part (37) builds up to force the parts (37), (35) to their lowest position exhausting converter I and maintaining the coupling filled.
Patent GB-1282646-A (GB)
Title: Process for the manufacture of chlorinated hydrocarbons
IPC: C07C17/02
Filed: 1969-12-19
Abstract: 1282646 Chlorinated hydrocarbons WACKERCHEMIE GmbH 19 Dec 1969 [21 Jan 1969] 61933/69 Heading C2C Chlorinated hydrocarbons are prepared by the addition of chlorine to an olefin or diolefin having 2 to 4 carbon atoms at a temperature of from 0‹ to 80‹ C. under a pressure of from 0À5 to 6 atmospheres gauge in the presence of, as catalyst, one or more ortho- or meta-substituted phenols wherein the substituent groups are alkyl radicals having 1 to 6 carbon atoms, halogen atoms or hydroxyl groups. The catalyst solution may be circulated and is suitably o-cresol, pyrocatechol, pyrogallol, phloroglucinol, o-sec-butylphenol, mcresol and/or resorcinol or the reaction product itself. Oxygen may be introduced into the olefin employed. Examples describe the preparation of 1,2-dichloroethane, 1,2-dichloropropane, 1,4- dichlorobutene-2, and 1,2-dichlorobutene-3-
Patent GB-2025213-A (GB)
Title: Folding chair
IPC: A47C4/42
Filed: 1978-07-14
Abstract: A folding chair comprising a seat member 2 of flexible material and a foldable support structure 3 therefor. The support structure comprises a ground-engaging base member 4 to which first and second struts 8, 20 are connected to lie in a vertical plane when the chair is erected. Each of the struts is inclined to the horizontal when the chair is erected and at least one of them 20 is angularly movable in said plane relative to the other. The free end of the first strut 8 has two mutually inclined legs 14 and two mutually inclined seat support props 13 pivotally attached thereto and together adopting an x-shaped configuration when the chair is erected. The flexible seat is releasably attached to the upper end of the second strut 20 (which is a telescopic tube) and to the upper ends of the two seat support props 13. To fold up the chair, the flexible seat 2 is removed, and the support structure folded up by pivoting the two legs 14 and the two props 13 towards one another and generally alongside said first strut 8, and by pivoting the two struts 20, 8 towards one another. <IMAGE>
Patent GB-2003968-A (GB)
Title: Improvements relating to fasteners
IPC: A41H37/00
Filed: 1978-08-24
Abstract: An assemblage of connected fasteners comprising a side member (50) comprising a row of connected paddle members (53), a second side member (51) comprising a row of connected end-bars (56), and filamentary cross-links (52). Such an assemblage is continuously moulded by delivering molten polymeric material through a platen into cavities in the periphery of a wheel as the periphery is moved past the platen. Such an assemblage is used in a dispensing apparatus or gun having a slotted hollow needle, means for advancing a fastener to the needle and means for aligning the end-bar of the fastener with the bore of the needle. <IMAGE>
Patent GB-2005221-A (GB)
Title: Apparatus for lifting large filled sacks
IPC: B66F9/18
Filed: 1978-08-25
Abstract: A support for large sacks 9 and suitable for bolting to a forklift truck 1 comprises a mounting plate 2, two coplanar swing arms on 5 said plate, a piston-cylinder unit 7 hinged to said swing arms to pivot same in unison in opposite directions and cantilever sack-supporting bars 6 extending from said swing arms. <IMAGE>
Patent GB-2011542-A (GB)
Title: Gas turbine engine nose cone
IPC: F01D25/02
Filed: 1978-11-15
Abstract: The cone comprises a deformable hemispherical outer member 22, and a dished rigid inner member 27, a pressurized fluid being supplied therebetween. <IMAGE>
Patent GB-2011773-A (GB)
Title: Apparatus for Harvesting Mushrooms Cultivated on a Flat Bed
IPC: A01G1/04
Filed: 1978-11-20
Abstract: Apparatus for harvesting mushrooms and the like grown on a flat bed comprises a cutting blade 10 mounted in a frame 1 which is movable along the bed so that cutting edge 11 extends transversely to the direction of movement of the frame, there being drive means for moving said blade with a reciprocating movement to cut mushrooms as the frame is moved along the bed, and a conveyor 21 extending behind the blade and having a conveying surface which extends parallel or substantially parallel to the cutting edge 11 and which moves in a direction transverse to the intended direction of travel of the frame, and wherein the blade 10 has a portion which slopes obliquely rearwardly and which has a rear edge leading smoothly on to the conveying surface of the conveyor. An endless belt 25 provided with bristles is mounted above blade 10 and gently moves cut mushrooms over the sloping portion of the blade towards the conveyor. <IMAGE>
Patent GB-2013306-A (GB)
Title: Heated rollers; switches
IPC: F26B13/14
Filed: 1978-12-22
Abstract: A steam heated drum 16, 17 for use in an apparatus (10) for drying a continuous narrow web 45 having a bulged edge 46 comprises a cylindrical body and a plurality of annular serrations 51, 52, 62, 63 extending circumferentially around and arranged axially of the cylindrical body, each of the annular serrations including an inclined annular surface 56 for supporting a turn of the continuous narrow web thereon. The inclined annular surface has an annular recess 58 at its radially most inward edge for receiving a corresponding portion of the bulged edge, whereby the tape with its bulged edge disposed in the annular recess can be held stably on the annular surface. A detector (35) Figs. 1 & 5 (not shown) has an adjustable throat which opens upon arrival of an overlapping web join to operate a switch (76) and stop the apparatus. <IMAGE>
Patent GB-2020621-A (GB)
Title: A protectively-sheathed container
IPC: B65D25/00
Filed: 1979-04-30
Abstract: A composite container, specifically a beer barrel, comprises a stainless steel enclosure surrounded by a mild steel sheath. The stainless steel enclosure is formed in two flow-turned cup-shaped parts 14 and 16 welded together at their rims and the sheath 12 is also formed in two parts secured together in such manner that telescoping movement between the parts is prevented, each part of the sleeve also having an inward projection 70 or 72 contacting a respective end wall of the enclosure to prevent longitudinal movement of the enclosure within the sleeve. Any compressive stresses applied to the container by falling on one end are carried by the sleeve so as to prevent fracture of the enclosure. <IMAGE>
Patent GB-2031282-A (GB)
Title: Surgical collection bag
IPC: A61F5/441
Filed: 1979-07-17
Abstract: A surgical collection bag for post operative use having two opposed walls, secured together by a perimeter weld 1. One of the walls has an inlet opening 4 through which the contents of the intestine of a patient can flow into the interior of the bag. The same wall also has a vent which is impervious to solid material and liquid from the intestine of the patient but which is pervious to gases. Welds 7 and 9 inside the bag together with the perimeter weld 1 define a pathway through which gases can flow from the interior of the bag to the vent. This pathway includes one or more gateways, 8, 10 through which gases must pass before they reach the vent. These gateways are sufficiently narrow to prevent the passage of solid materials and liquids. If desired, the welds can be discontinuous to provide a multiplicity of gateways. <IMAGE>
Patent GB-2028591-A (GB)
Title: Sliding electrical switch
IPC: H01H1/16
Filed: 1979-08-21
Abstract: A slide switch comprises a slide member 4, including a sliding contact 45, arranged to slide relative to the fixed contacts 1,2 between an OFF and an ON position, the contacting portion 30 of one of the contacts 1 including a pair of connected, spaced resilient arms 21, 24 extending parallel to the top surface of the base plate 3, each arm 21, 24 having a free end biased inwardly toward the other arm to capture the sliding contact 45 therebetween and electrically engage the sliding contact as the slide member 4 is moved from an OFF to an ON position. The contracting portion 29 of the other contact 1 has a shaped part 13, 16 in the path of the sliding contact 45 for electrically engaging the sliding contact 45 when the slide member 4 is moved to the ON position, the resilient arms 11, 14 of the one contact 1 being shaped to urge the sliding contact 45 against the shaped part of the other contact 2 when the slide member 4 is in the ON position. <IMAGE>
Patent GB-2031717-A (GB)
Title: Hot dog grill drive
IPC: A47J37/04
Filed: 1979-09-05
Abstract: A bank of parallel rotatably mounted spaced grill tubes 10 and a drive shaft 14 are all crank-connected to a drive plate 11. The drive plate 11 is generally triangular in shape, with the drive shaft crank 15 being connected to its apex and the grill tube cranks 12-13 to its base. In this manner the grill tubes are adapted to be rotated in either direction by the drive shaft continuously, or oscillated. <IMAGE>
Patent GB-2033976-A (GB)
Title: A Method of Manufacturing a Ring Bearing Element
IPC: F16C33/64
Filed: 1979-09-27
Abstract: A method of manufacturing a ring bearing element comprises the steps of deforming an elongate strip to produce a strip with a cross-section having a first limb (7) for defining a bearing track (8) and a second curved limb (5), integral with the first limb (7), which limbs mutually merge along a region extending axially of the strip and have free end portions generally disposed in a common plane and which at the region of merging the limbs (5, 7) extend substantially perpendicularly to each other and to the axis of the strip, uniting the axial end portions of the strip with each other to produce a ring and thereafter straightening the second limb (5). <IMAGE>
Patent GB-2070333-A (GB)
Title: Thermostats
IPC: H01H37/04
Filed: 1980-02-20
Abstract: A thermostat has a rod and tube actuating mechanism and two switches (7, 8), which are mounted on a common insulator stack (9) made up of insulating bushes (10, 11, 12, 13). The bushes are square and formed with inclined surfaces between their sides and faces transverse to the axis of the stack, the inclined surfaces being engaged by tags (33,34) bent out of conductor strips (15,16,18,19) carrying the contacts of the switches (7,8) whereby the conductor strips are prevented from rotating. The switches (7,8) have generally rectangular aligned switch blades (20, 21). The ends of the blades (20, 21) remote from the actuating mechanism carry movable contacts (24,26) and their other ends are coupled to an operating member (6) coupled to the rod of the actuating mechanism. The connections of the ends of the blades (20, 21) to the operating member (6) are offset in opposite directions from the longitudinal axes of the blades (20, 21). <IMAGE>
Patent GB-2070953-A (GB)
Title: Oil refiner-evaporator
IPC: B01D35/18
Filed: 1980-02-28
Abstract: A refiner for cleaning the oil from an internal combustion engine comprises a body 7 containing a filter material 15 capped by a felt 16 and a compressor plate 17. Above the compressor plate 17 is a thermal cover 18 containing an electric heater 19. Oil enters the body from the output of the engine's oil pump, passes through the filter material, contacts the heater and leaves through exit pipe 15' to the engine's rocker box. The heater is controlled by a pressure switch 8 which monitors the oil pressure in body 7. <IMAGE>