baber/WOPTO huggingface dataset:
Patent GB-1266216-A (GB)
IPC: F25D3/10
Filed: 1969-11-17
Abstract: 1,266,216. Refrigerating systems. UNION CARBIDE CORP. 17 Nov., 1969 [18 Nov., 1968], No. 56183/69. Heading F4H. In a system in which perishable products 12 stored in a chamber 11 are refrigerated by spraying into said chamber pressurized nitrogenrich liquefied gas, (stored, e.g. in a container 14) the chamber is provided with thermal insulation 13 (using conventional materials) sufficient to limit the atmospheric heat leak to a rate below 0À10 Btu/hr/‹F./sq. feet of inside surface area, the refrigerating liquid being sprayed as a multiplicity of discrete streams into the chamber by spray means having a maximum flow rating between 30 and 110 lbs. per hour equivalent pure nitrogen (defined as meaning refrigeration content as compared to liquid nitrogen), per 10 foot length of chamber for a chamber cross-sectional area between 40 and 100 feet<SP>2</SP> and the refrigerant flow being regulated so as to maintain the gas temperature in the range of -10‹ to 60‹ F. The openings 22 in the spray conduit 21 may for example have an equivalent diameter of less than 0À07 inches (0À038 inch diameter openings with a spacing of 11 to 15 inches being preferred) and may be oriented horizontally or slightly downwardly. The spray conduit 21 is preferably located near the side wall of the container so that any liquid formed drains down the wall. The conduit may have thermal insulation 21a. The refrigerant may discharge through the spray openings 22 as a liquid, vapour or a mixture thereof. A vapourizing heat exchanger (not illustrated) may be provided upstream of the spray tube 21. The apparatus shown also includes a fan 31 for circulating the environment gas. The fan may be driven either directly or through a speed change belt drive or gears by an electric motor or by a turbine or like expander 29, which is powered by refrigerant drawn from storage container 14 through a conduit 23 and evaporated in heat exchangers 25, 27 before passing to the expander.
Patent GB-1287913-A (GB)
IPC: G03C1/74
Filed: 1969-09-19
Abstract: 1287913 Heating a solution in a film evaporator AGFA GEVAERT AG 19 Sept 1969 46226/69 Heading B1B [Also in Divisions F4 and G2] A coating solution, e.g. a photographic emulsion, is obtained at a predetermined temperature and reduced viscosity by feeding the solution to a falling film evaporator maintained at sub-atmospheric pressure, and impinging steam on the falling film of solution. The solution discharged from the evaporator is used for coating the chosen substrate. Normally, steam condenses on the falling film of solution, but the aqueous condensate may be evaporated in the lower stages of the evaporator by means of a heating jacket. In the case of a photographic emulsion, the source of steam is a vacuum steam generator, because ordinary mains steam contains impurities.
Patent GB-1288649-A (GB)
IPC: A01D90/12
Filed: 1970-01-22
Abstract: 1288649 Load lifting and tilting vehicle; container traffic MASCHINENFABRIK FAHR AG 22 Jan 1970 [31 Jan 1969] 3175/70 Headings B8E and B8Q A trailer having a forked frame 1 and longitudinal load carrying beams 3 pivoted thereto at 4 and held down by connections 5 comprises a linkage 6 of links 7, 8 pivoted at 9 or 11 or having a pin and slot connection 13 or 14 at their ends with the beams 3 and an upper beam 10. The linkage is engaged by a ram 15. To pick up a container 16 having a rim 17 the trailer is backed so that its forked frame lies on either side and the linkage 6 is operated so that the beam 10 engages the lip 17 to lift the container to a transport position in which it can be locked by tightening the pin and slot connection 14. The container can be locked to the beams 10 by a mechanism 18. The linkage can be raised to and locked in various positions to allow stacking of the containers or to allow emptying by tipping about the pivot 4 on further actuation of the ram 15 after release of the connections 5. Other embodiments have different connections between the linkage 6, and the beams 3 and container 16 which can give forward or backward movement as the container rises or a parallel vertical movement.
Patent GB-1294816-A (GB)
IPC: C30B9/00
Filed: 1971-04-19
Abstract: 1294816 Fibrous TiO 2  BAYER AG 19 April 1971 [19 Feb 1970] 22228/71 Heading C1N Fibrous TiO 2  is produced by contacting at least one Ti compound other than Ti(hal) 4  at a temperature above 600‹ C. with a melt of one or more salts of oxyacids which form volatile anhydrides under the reaction conditions. The Ti compound may be a hydroxide, halide, sulphide, sulphate, double sulphate, nitride, nitrite, nitrate, carbonate, carboxylate, alkoxide, thiocyanate, borate, cyanide, or ester, and may be solid, liquid, or gaseous (the latter may be mixed with a carrier gas, e.g. N 2  or air). The salt may be Li 2 SO 4 , Na 2 SO 4 , NaHSO 4 , Na 2 S 2 O 7 , K 2 SO 4 , KHSO 4 , K 2 S 2 O 7 , CuSO 4 , MgSO 4 , ZnSO 4 , CdSO 4 , MnSO 4 , or NiSO 4 . The reaction temperature may be 600-1200‹ C. The product is cooled and the residual melt dissolved out with water. Examples use (1) TiOSO 4 , NaHSO 4  and Na 2 SO 4 , (2) K 2 TiF 6  and Na 2 SO 4 .
Patent GB-1295093-A (GB)
IPC: G01R13/28
Filed: 1969-02-27
Abstract: 1295093 Cathode-ray tube displays SOLARTRON ELECTRONIC GROUP Ltd 11 Feb 1970 [27 Feb 1969] 10662/69 Heading H4T [Also in Division G4] Two signals to be displayed by deflection modulation of the time base trace,on a cathoderay tube are supplied to the beam deflection plates during respective alternate intervals, the durations of which vary in accordance with a controlling train of pulses of varying repetition rate. In one embodiment (Fig. 1), the pulses are produced by squaring in 24, the output of a sine wave oscillator 23 which is frequency modulated by means of a variable reactance circuit 22 controlled by an oscillator 21 of lower frequency than oscillator 23. The frequency modulated pulse train from squarer 24 is then employed to trip a bi-stable flip-flop 19, the output of which is utilized via a switching circuit 16 including transistors 25, 26 and diodes 29, 30, 33, 34 to switch the outputs of amplifiers 17 and 18 (to which the respective signals to be displayed are fed) alternately to the Y-amplifier 15 to deflection modulate the time base trace produced by X-deflection circuit 14. In a modification the oscillator 21 may be replaced by a noise generator (Fig. 2, not shown) and in a further modificaion the source 20 may be replaced by pseudo random pulse generator comprising a shift register adapted to operate as a chain code generator. Fig. 3 shows the latter arrangement in which a five-stage shift register employing known J-K types of bi-stable circuits 38-42 has the "Q" outputs of the third and fifth stages connected to a half adder 43, the outputs of which are supplied to the J, K inputs of the first stage. In operation each stage assumes the state of the preceding stage when pulses from a free-running multivibrator 37 are supplied to the C inputs and results in the signal at the "Q" output of the fifth stage alternating between its true and false level over a cycle of sixteen intervals during each of which the signal is at one level (Q or Q) only. Each of 'the sixteen intervals corresponds to n shift pulses where n take the successive values 1, 2, 1, 1, 2, 2, 5, 3, 2, 1, 3, 1, 1, 1. 1, 4 in each cycle. The pseudo random Q and Q outputs of the fifth stage are then employed via gate 16 to switch the amplifiers 17, 18 to the Y-amplifier 15. The Q output of the fourth stage is employed as a blanking pulse which blanks the beam for about thirty nanoseconds before the Y1 or Y2 signals are applied to the beam to prevent the production of a small "tail" on each which produces an aparent increase in line width. Fig. 4 shows the arrangement of the half-adder 43.
Patent GB-1295484-A (GB)
IPC: E05B85/02
Filed: 1970-11-09
Abstract: 1295484 Latches ARN KIEKERT SOHNE 9 Nov 1970 [15 Jan 1970] 53152/70 Heading E2A A motor vehicle door latch comprises a box section housing 3 constructed from a channel section member having two spaced limbs 8, 9 and an interconnecting web 10 and being further connected remote from the web by a cover plate 7 extending between the limbs, the housing being adapted for installation on an end wall of a door of the vehicle so as to project therefrom and containing a rotary forked latch bolt 11 for working association with a keeper pin 5 adapted to be fastened to a door pillar of the vehicle bodywork, an entrance slot in the connecting web for the keeper pin, the forked latch bolt being mounted to turn on a pivot pin 12 supported in the housing between the web and the cover plate below the entrance slot for the keeper pin, and a rotary detent 13 likewise mounted on a pivot pin supported in the housing between the web and the cover plate to co-operate with the forked latch bolt, and a wedge shaped striker pad 17 fitted in the housing behind the rotary detent. In the construction shown the cover plate is used to secure the housing to the door and the limbs of the housing are secured to the cover plate by rivetting them over; however in a modification the limbs terminate in flanges and bolts pass through holes in the flanges into threaded apertures in the cover plate to secure the housing to the door.
Patent GB-1295784-A (GB)
IPC: C07D295/13
Filed: 1971-01-19
Abstract: 1295784 Aminoethylpiperazine JEFFERSON CHEMICAL CO Inc 19 Jan 1971 [9 March 1970] 2491/71 Heading C2C N - # - aminoethylpiperazine is prepared by reacting monoethanolamine, ammonia and hydrogen in an aqueous medium over a hydrogenation catalyst, the process being characterized by introducing into the starting mixture compounds normally produced in the process, e.g. piperazine or a portion of the product stream.
Patent GB-1297351-A (GB)
IPC: C07F7/08
Filed: 1971-04-19
Abstract: 1297351 Sila-adamantanes DOW CORNING CORP 19 April 1971 [18 May 1970] 9921/71 Heading C3S Novel tetrasila - oxa - adamantanes of the formula wherein each R represents chlorine, bromine or methyl, at least one R representing methyl, are prepared by reacting silmethylene compounds of the formula [(CH 3 ) 2 SiCH 2 ] n  (wherein n denotes an integer of 2 or more), [(CH 3 ) 2 XSi] 2 CH 2  (where X denotes bromine or chlorine), [(CH 3 ) 3  Si] 2 CH 2  or a mixture thereof with 10 to 100% by weight of an aluminium chloride or bromide catalyst, based on the weight of silmethylene compounds, and subsequently hydrolysing the product reaction mixture, e.g. by the addition of water at room temperature. Organic halogenating agents may also be present during the first step of the reaction. Uses.-Polymer precursors and mosquito repellants.
Patent GB-1316886-A (GB)
Title: Apparatus for use in reforming hydrocarbons under pressure
IPC: B01J8/06
Filed: 1970-12-24
Abstract: 1316886 Hydrogen V P SEMENOV 24 Dec 1970 61377/70 Heading C1A [Also in Division C5] An apparatus for reforming hydrocarbons under pressure to produce a gas mixture containing H 2 , e.g. an ammonia synthesis gas, comprises primary and secondary reforming chambers (B, C), see Fig. 1 (not shown), in a common shell (1). The chambers (B, C) are separated by a chamber D defined by transverse partitions 11, 12. Catalyst-containing tubes 2 in the chamber (B) traverse the chamber D, perforated tubes 13 permitting a gas, e.g. air, supplied at 16 to pass through the chamber D to the chamber (C). The tubes 2 are externally heated by hot gases, feed-stock and steam being delivered to the tubes 2, which are mounted at their bases in sliding packed joints 14. Means 15 to allow thermal expansion form a mounting for the partitions 11, 12. The chamber (C) contains a catalyst bed on a grid (6).
Patent GB-1325438-A (GB)
Title: Pyrometers
IPC: G01J5/52
Filed: 1969-10-20
Abstract: 1325438 Pyrometer UNITED KINGDOM ATOMIC ENERGY AUTHORITY 14 Jan 1971 [20 Oct 1969] 51436/69 Heading G1A In a pyrometer for measuring the temperature of an object 23 in for example a nuclear reactor, the difference in temperature across the faces 7, 8 of a transducer exposed respectively through sapphire lenses 2, 3 to radiation from the object 23 and a reference source 13, is used to control the temperature of the reference source in a manner to eliminate the difference and the temperature of the reference source at null is measured to indicate the temperature of the object. The source may be electrically heated and its temperature may be detected by a probe 15, or by measuring the heating current. Apertured plates may define the maximum beam size and the transducer faces may have the same mass and heat loss. Chamber 4 may be a vacuum or include a gas having a characteristic e.g. thermal conductivity as the ambient environment. The paths may include heat filters.
Patent GB-1326456-A (GB)
Title: Method and apparatus for the production of iron or steel
IPC: C21B13/08
Filed: 1971-01-28
Abstract: 1326456 Extracting iron BRITISH IRON and STEEL RESEARCH ASSOCIATION 27 Jan 1972 [28 Jan 1971] 3404/71 Heading C7D [Also in Division F4] In a rotary furnace for the production of iron or steel of the kind described in Specification 1270699, the charge material is introduced with an alternately increasing and decreasing horizontal component of motion, so that it is spread over the furnace. The charge material is injected through a tube 6 by puffs of compressed air, the furnace being heated by a burner 8 and additional charge material being fed through a pipe 7. Tapholes 10, 11 are provided in a hood 32 at the discharge end.
Patent GB-1339885-A (GB)
Title: Emergency air supplies for mines
IPC: A62B15/00
Filed: 1969-11-21
Abstract: 1339885 Valves H LINDLEY Ltd 18 Dec 1970 [21 Nov 1969] 56993/69 Heading F2V [Also in Division A5] An air release device, particularly for use in mines, comprise a valve 8 in communication with a pipe 19 for presenting air to a mouthpiece, not shown, and a low pressure air supply pipe 5, the valve 8 and pipe 19 being housed in an open box 7, the valve being opened by movement of the pipe 19 from the box to the position shown. The valve 8 comprises a generally frusto-conical male member 9 secured to pipe 5 by a hollow screw-threaded adapter 21 and branch 22, and a female member 10 having an internal bore receiving the member 9 and being spring biased thereon by a spring 11. The member 9 has a coaxial internal bore 15 in communication with pipe 5 and with a second bore 16 at right angles to the first. The member 10 has a hole 17 in communication with the pipe 19 to be selectively registered with bore 16, member 10 being rotatable about the member 9 through approx. 90 degrees from a position where the pipe 19 is in the box 7 to the position shown, the rotation being limited by a pin 24 running in a groove 23.
Patent GB-1341407-A (GB)
Title: Semiconductor devices
IPC: H01L23/31
Filed: 1971-12-23
Abstract: 1341407 Semi-conductor devices ASSOCIATED ELECTRICAL INDUSTRIES Ltd 23 Dec 1971 [23 Dec 1970] 61190/70 Heading H1K The capacitance between the spaced ends of two aligned elongate electrical leads 1, 2, one of which 2 carries a semi-conductor body 3 electrically connected between the leads, is reduced by providing in the gap between the adjacent ends of the leads 1, 2 a material having a lower dielectric constant than that of the material forming a protective coating 8 around the semiconductor body 3. The invention is particularly applicable to high frequency diodes. The gap may be filled with a solid block 6 of quartz or P.T.F.E. or may comprise an air gap formed when a resilient strip, e.g., of P.T.F.E., is pulled out from between the leads 1, 2 after formation of the coating 8 and an outer casing 9. Preferably additional blocks 5, 7 of quartz are provided to bridge the gap between the leads 1, 2 on both faces of the leads. There may be two blocks 7, one at each side of the semi-conductor body 3. The leads 1, 2 may be cut from a lead frame. In the embodiments an Au wire 4 connects the second lead 2 to an upper electrode of the body 3.
Patent GB-1342245-A (GB)
IPC: B22D23/04
Filed: 1970-05-14
Abstract: 1342245 Casting processes and moulds HEPWORTH & GRANDAGE Ltd 6 May 1971 [14 May 1970] 23508/70 Addition to 1231795 Heading B3F [Also in Division C7] Piston rings are cast by immersing a stack of moulds 11 into a bath of ferrous metal 20. The apparatus and procedure are the same as disclosed in Specification 1,231,795 except that the moulds are made of a permanent material instead of a gas-permeable material. Consequently, vents 14 extend from the mould cavity to a central vent 14a. The moulds 11 are made of an alloy comprising Mo 99À5%; Ti 0À4%; Zr 0À1%. The moulds are not held tightly and may thus float to a limited extent when submerged in the melt.
Patent GB-1343277-A (GB)
Title: Trawl fishing net floats
IPC: A01K75/04
Filed: 1971-04-19
Abstract: 1343277 Fishing float PHILLIPS TRAWL PRODUCTS Ltd 19 April 1971 [17 April 1970] 18459/70 Heading A1A A kite float for trawl fishing comprises two spherical float bodies 1 having handles 2 for attachment of ropes and fore-and-aft ribs 3 having perforations through which water can stream out from between the float bodies during trawling and to which is attached partcylindrical web 4 thereby rigidly interconnecting the float bodies 1. Each float body may be hollow, made of aluminium alloy, and cast as two halves which are welded together along seam 5, the rib 3 being integrally cast with one half by means of spine 6 (Fig. 2, not shown). Alternatively the float bodies may be of cellular plastics.
Patent GB-1344391-A (GB)
Title: Process for producing sulphuric acid
IPC: C01B17/775
Filed: 1971-04-28
Abstract: 1344391 Producing sulphuric acid SUMITOMO JUKIKAI KOGYO KK 28 April 1971 12010/71 Heading C1A In a process for producing sulphuric acid from an SO 2 -containing feed gas by converting SO 2  to SO 3  which is absorbed in an absorption tower, SO 2  and SO 3  in the effluent gas from said absorbing tower are absorbed on a solid absorbent capable of converting SO 2  to SO 3  and washed therefrom with water or dilute sulphuric acid, the sulphuric acid thus produced being supplied to an earlier stage in the H 2 SO 4  production process. The preferred absorbent is active carbon. In the embodiment illustrated the off-gas from final absorption of SO 3  in H 2 SO 4  in absorption tower 27 is passed via line 28 and humidifier 29 to a vessel 33 packed with absorbent. SO 2  and SO 3  are absorbed and purified gas leaves 33 via valved line 34 and line 36. Water or dilute sulphuric acid is then passed through vessel 33 via lines 50 and the sulphuric acid produced is removed via lines 52 and 54 and recycled either for further washing of absorbent via 54a-54e, lines 47, 29, and 50, or for use in absorbing tower 27. Finally a stream of air heated by the heat of reaction in converter 23 is blown over the absorbent in 33 to restore it to its original state when the process is repeated. At least three vessels 33 may be provided or subjected to the cycle absorption, washing, drying in such a way that at any given time at least one absorbent is being used in each stage.
Patent GB-1345867-A (GB)
Title: Apparatus for passing predetermined volumes of fluid
IPC: F04B9/08
Filed: 1971-09-15
Abstract: 1345867 Delivering measured quantities of liquid EDWARD WILLIAMS (HOLDINGS) Ltd 15 Sept 1971 [6 Oct 1970] 47377/70 Heading B8N Apparatus for intermittently passing predetermined volumes of liquid, e.g. to or from an hydraulic ram or linear or rotary actuator to obtain incremental movements, comprises a piston 33 with a piston-rod 35 carrying a stop 38 adjustable by hand wheel 39, and an annular piston 40 slidable on rod 35. Liquid to be supplied to the ram or actuator is connected to port 41, by moving solenoid valve 43 to the left, and port 42 is connected to exhaust. Pistons 33, 40 then move to the right until adjustable stop 36, 37 on piston-rod 34 engages cylinder end 31, port 44 then being uncovered by piston 33 and port 45 aligned with an annular groove in piston 40 adjacent piston 33. Liquid flows into the groove from port 41 via port 44, check valve 46 and port 45 and moves piston 40 to the right until it contacts adjustable stop 38 on piston-rod 35. Valve 43 is then moved to the position shown, admitting supply liquid to port 42 and connecting port 41 to exhaust, and the piston assembly moves to the left until piston 33 contacts cylinder end 31. Piston 40 continues to move to the left, discharging the liquid trapped between the pistons through port 47 to the ram or actuator.
Patent GB-1350141-A (GB)
Title: Impulsive-loading mechanisms
IPC: F01B11/08
Filed: 1971-10-30
Abstract: 1350141 Pre-combustion chambers KHARKOVSKY AVIATSIONNY INSTITUT 30 Oct 1971 50568/71 Heading F1B An impulsive feed mechanism comprises first and second cavities 2, 4 joined by an opening 5 which is normally closed by a piston valve 6 dividing the second cavity 4 into first and second chambers. The first chamber is annular and intermittently receives a combustible mixture from passage 9 for ignition by plug 10. The second chamber contains liquid 11 which communicates via a valve 13 having an orifice 15 with an accumulator 12. This valve permits substantially unrestricted flow from the cavity 4 into accumulator 12 and the orifice 15 permits only a restricted flow in the opposite direction. The annular chamber communicates via openings 8 with the interior 7 of piston valve 6. Ignition of the combustible mixture in the annular chamber and piston valve interior 7 moves the piston valve 6 to the right, forcing liquid 11 into accumulator 12. The gases expand from the annular chamber, through the opening 5 into cavity 2 to drive piston 3. When the energy of combustion is expended the piston 6 is slowly retained by virtue of orifice 15, to its closed position by the gas pressure in accumulator 12.