baber/WOPTO huggingface dataset:
Patent GB-1239633-A (GB)
IPC: G11C17/02
Filed: 1968-10-02
Abstract: 1,239,633. Data storage arrangements. SPERRY RAND CORP. 2 Oct., 1968 [2 Oct., 1967], No. 46679/68. Heading G4A. [Also in Divisions H1 and H3] A single magnetic storage element stores a first binary digit which is permanently stored and is read out non-destructively and a second binary digit which is read out destructively. As shown in Fig. 1, the storage element comprises a pair of superposed anisotropic magnetic thin films 12, 14 between which is sandwiched a bit/sense conductor 30 extending transverse of the easy direction of magnetization. Two apertures 16, 18 are formed in the films through which extend a looped word conductor 24, 26. Flux directions established by current in a given direction in the bit and word conductors, respectively, are shown at 29 and 20. To permanently store a digit, a pulse is applied to the word conductor, Fig. 5 (not shown), followed by an overlapping digit pulse in the bit conductor which causes the rotated film magnetization to relapse into one or the other direction along the easy axis, according to the digit pulse direction. The established easy direction magnetization is then partially rotated towards the hard direction by a weak current in the word conductor, or by an external field, and the rotational displacement is permanently established by annealing the film at a temperature of about 150‹ C. for 4 hours with the weak current or external field applied for the whole of this time. The magnetic conditions established are as shown in Fig. 9a for a stored non-destructive read out (NDRO) "1" and as shown in Fig. 10a for a stored NDRO "0". To write the second digit the previous writing operation using overlapping pulses in the word and digit conductors is repeated, the possible storage conditions for destructive readout (DRO) and NDRO being shown in Figs. 9a, 9b and 10a, 10b. Read out of the second, DRO, digit is effected by a word conductor pulse which induces an output pulse in the digit conductor the direction of which is indicative of the digit read out, this pulse being detected by a gated amplifier 74, Fig. 1. A further pulse in the word conductor then effects NDRO read out of the second digit, and since a pulse is induced in the digit conductor both at the beginning and end of the word conductor pulse due to flux rotation and relaxation, respectively, the amplifier 74 may be gated at either time. A storage matrix consisting of two planes of storage elements 10a to 10h is shown in Fig. 15, each plane having a common digit/ sense conductor 30a, 30b.
Patent GB-1251594-A (GB)
IPC: H03K3/356
Filed: 1969-01-16
Abstract: 1,251,594. Transistor flip flop. SHARP K.K. 16 Jan., 1969 [25 Jan., 1968], No. 2673/69. Heading H3T. A flip flop consists of a storage device, such as a pair of F.E.T. inverter stages 3, 7, Fig. 5, on whose internal capacities a " 0 " or " 1" is stored, and a feedback loop connected from the output Q to the input S through a diode 13 and a switch 12 controlled by a second input R, the output depending upon R and S. The switch 12 is a F.E.T., and the load impedances 9, 10 of the inverting F.E.T.s 3, 7 are also F.E.T.s. Gating F.E.T.s 1, 5 are controlled by clock pulses # 1  # 2  from respective clock sources, # 2  being later than # 1 , and the gates being blocked by a highvoltage level of # 1  or # 2 . A zero voltage (" 1 ") at S when gated by #, turns off F.E.T. 3 and the point C falls in potential " 0 ", this condition being maintained by internal storage even after the end of the clock pulse # 1 . When # 2  gates the " 0 " to F.E.T. 7 the output Q goes to " 1 " and is again held by stored charge after the end of # 2 . The opposite happens for a negative S input (" 0 "). Consequently, when R is " 0 " and F.E.T. 12 is off the input S appears at the output Q; if R is " 1 " and F.E.T. 12 therefore on, an input S of " 1 " appears at the output, and an input S of " 0 " allows the already existing output Q to continue. A modification (Fig. 7, not shown) uses a gate F.E.T. 14 controlled by a third clock pulse # 3  and connected to the output Q and F.E.T. 3 gate to prevent backward transfer of information. J-K type operation is achieved in a modification of Fig. 5 (Fig. 10, not shown) by connecting a further gating F.E.T. (15) between input S and the F.E.T. 1 and controlling this further F.E.T. (15) from the output Q. The extra # 3 - controlled F.E.T. (14, Fig. 7, not shown) may also be included (Fig. 12, not shown); or, alternatively, a similar feedback F.E.T. (14, Fig. 12, not shown) may be connected between the gate of F.E.T. 3 and an extra inverting stage (17, 18) fed from the output Q, the feedback F.E.T. (14) being controlled by # 1 . Reference has been directed by the Comptroller to Specification 1,193,298.
Patent GB-1252014-A (GB)
IPC: B21K1/44
Filed: 1968-12-18
Abstract: 1,252,014. Making bolts; jointing. STANDARD PRESSED STEEL CO. 18 Dec., 1968 [20 Dec., 1967], No. 60255/68. Headings B3A and B3V. [Also in Division F2] A method of making a bolt or the like comprises providing a head unit or nut 20 having a bore 26 which is threaded along a first selected length and unthreaded along a second selected length, providing a stud 10 having an externally threaded section 12 spaced from one end by an unthreaded section 15, which is larger in crosssection than the second selected length, subjecting the second selected length and the unthreaded section of the stud to differential heating and threadably engaging the stud and nut with the unthreaded section in the second selected length of the bore. The stud and nut are mechanically worked to the desired shapes initially by conventional equipment and then heat treated. After heat treatment the threads are formed on the stud and in the bore of the nut along the first selected length. The stud and nut are preferably of stainless steel, but two different, compatible alloys may be used, the stud at least being of an alloy which develops high strength properties, either by the combination of mechanical working and heat treatment or by mechanical working alone. In an alternative embodiment, the head unit (40) comprises a fully threaded nut (44) and a separate collar (60), which is unthreaded and abuts the nut, Fig. 4 (not shown).
Patent GB-1252057-A (GB)
IPC: B62D55/26
Filed: 1969-10-16
Abstract: 1,252,057. Endless track vehicles. E. M. COMELLAS. 16 Oct., 1969 [21 Oct., 1968], No. 50810/69. Heading B7H. [Also in Division E2] The ground-engaging tensioned track members of a tracked vehicle are pivotally connected by three cylindrical rods extending through at least three cylindrical holes in the members, each hole diameter exceeding that of the circle circumscribing the rods in a plane transverse to their axes when they are parallel, side by side and contact each other, and preferably being less than that of the circle similarly circumscribing the rods when they are side by side against each other with their axes in a common plane. The rods, of substantially equal diameter, are retained in the holes by collars 15 bolted to rod 6. Collar stems 16 and rod 6 have mating bevels to prevent their relative rotation. The collars may close the holes to retain lubricant. The holes may each have a metal sleeve 4.
Patent GB-1252142-A (GB)
IPC: F28F21/08
Filed: 1968-11-15
Abstract: 1,252,142. Plate heat-exchangers. AGFAGEVAERT A.G. 15 Nov., 1968 [18 Nov., 1967], No. 54339/68. Heading F4S. In a plate heat-exchanger for controlling the temperature of a photographic processing fluid and comprising a stack of stainless steel heat transfer plates 2 spaced apart by interposed plates 10 of synthetic plastics material, each plastics plate is provided with a U-shaped slot aperture 9 or 14, the apertures of the plates 10 in the stack being suitably connected through holes 8 to define alternate separate flow paths respectively for the processing fluid and for a heating medium. Processing fluid enters through inlet pipe 4 and, as shown, flows in counter-flow to the heating medium. The stack plates 2, 10 are compressed together by means of tie-bars (6, Fig. 1). Examples of suitable plastics materials for the plates 10 are vulcanite, polyvinylchloride, polytetrafluorethylene, and polyethylene. The thickness of the plastics plates progressively decreases along the length of the stack. In an alternative arrangement (Fig. 2, not shown) the plate heat-exchanger is constructed with a single fluid flow path for the processing fluid only, the exchanger being immersed in the heating medium.
Patent GB-1257342-A (GB)
IPC: C23C14/35
Filed: 1969-01-07
Abstract: 1,257,342. Sputtering apparatus. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. Jan.7,1969 [Jan. 11, 1968; July 30, 1968], No. 968/69. Heading C7F. A sputtering apparatus comprises adjustable cylindrical targets 18, 23 mounted on a stationary column 8, cathode 27, anode 42, rotatable substrate carriers 20, 44 (only two of six shown), and a cylindrical mask 58 which may be rotated and moved vertically. The plasma is focused by an external magnetic coil 45. The mask comprises two apertured cylinders 83, 84, stationary and rotatable, respectively. Rotation of the mask may be manual through a drive 91 or by an electromagnetic drive. The substrate carriers rotate about their own vertical axis. The substrates may be preheated by electric resistance or infrared heaters and may be cleaned by ionic bombardment. The vacuum vessel 15 may be double walled for water cooling.
Patent GB-1257781-A (GB)
IPC: F04B11/00
Filed: 1968-03-08
Abstract: 1,257,781. Hydraulic reciprocating pumps. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 21, 1969 [March 8, 1968], No. 11590/68. Heading F1A. A pump has its cylinder 10 separated by a space 28 from an enclosing pressure vessel 20, the space 28 being arranged to receive fluid pumped from the cylinder past an annular lift valve 14, 15. This arrangement causes the cylinder 10 to be subjected to cyclic compressive stress instead of cyclic tensile stress, thereby to reduce the effects of fatigue. Fluid is discharged from the space 28 at a steady pressure through a drilling 45, an annular space 18 and an outlet line 44, 46. To allow for changes in the supply requirements the space 28 includes a variable accumulator space 34. Thus the pressure vessel 20 and a low-pressure cylinder 6 secured thereto are slidable on fixed pillars 22 and a base 2, 3 to vary the volume of the space 34. Increases in volume are resisted by the pressure of fluid admitted through lines 42, 38 to the low-pressure cylinder 6 for flow therefrom through a passage 39, 40 and a valve 41 to the pumping cylinder 10. Fluid in the cylinder 6 also serves as the loading for the outlet valve 14, 15. (For Figure see next page)
Patent GB-1258593-A (GB)
IPC: D01F6/70
Filed: 1969-05-28
Abstract: 1,258,593. Polyurethanes. E. I. DU PONT DE NEMOURS & CO. 28 May, 1969 [31 May, 1970], No. 27031/69. Heading C3R. Long chain elastomeric polyether-based segmented polyurethanes containing in the polymer chain tertiary amine nitrogen bonded to two non-carbonyl carbon atoms and further bonded to a t-butyl group, the polyurethane containing at least 10 milliequivalents of such nitrogen per kilogram of polyurethane may be prepared by reacting a polyether glycol, an organic diisocyanate a chain extender and optionally a chain-terminating amine, at least one of these compounds containing a tertiary amine nitrogen bonded to two non-carbonyl carbon atoms and further bonded to a t-butyl group. The N-t-butyl groups may suitably be incorporated in the reaction mixture by chain extending polyether-based prepolymers with N-t-butyl-diethanolamine, 4-t-butyl-4-aza-2,6- heptanediol, N - t - butyl - diethylene triamine or 4 - t - butyl - 4 - aza - 2,6 - diamino - heptane. Conventional chain extenders e.g. organic diamines, hydrazine and dihydrazides may be incorporated in the reaction mixture.
Patent GB-1264380-A (GB)
IPC: B65B11/58
Filed: 1969-10-27
Abstract: 1,264,380. Double wrapping batches of biscuits. ROSE FORGROVE Ltd. 10 Sept., 1970 [27 Oct., 1969], No. 52524/69. Heading B8C. A wrapping machine comprises a reciprocating elevator 12 which lifts a batch of biscuits 10 up through pre-positioned superposed inner and outer wrappers (43, 44, Figs. 2 and 3) cut from webs 13, 14 and folds the wrappers (43, 44) into a U-formation around the biscuits 10 as they are lifted into an intermittently rotating wrapping wheel 17, a reciprocating creasing blade 33 and a co-operating rubber or grooved pad 32 for producing a transverse crease (34, Fig. 3) near one edge of the inner wrapper (43) and sealing members 52, 53 for forming a fin seal between the tails of the outer wrapper (44) so as to produce a sleeve of wrapping material around the biscuits. The provision of the crease (34) causes the tails of the inner wrapper to overlap without abutting so allowing the tails of the outer wrapper free to be sealed together. Moving knives 20, 21 cut the wrappers (43, 44) from the webs 13, 14 which are drawn across the elevator station by a pair of reciprocating pickers 18. The creasing blade 33 is carried with the lower knife 20. The inner wrapper (43) is narrower than the outer wrapper (44) enabling the leading edge (35, Fig. 3) of the inner wrapper (43) to be retracted in relation to the leading edge of the outer wrapper prior to the operation of the sealing members 52, 53. This is achieved by clamping the webs 13, 14 to a dead plate 38 with a rubber clamp 39 once the webs have been drawn across the elevation station. After the cutting and creasing operations a pull back bar 40 moves to the left as viewed in Fig. 1 to draw the inner web 13 back whilst plungers 36 clamp the outer web 14 by its longitudinal edges. Then the clamps 36, 39 release and the pull back bar 40 returns to its original position as the pickers 18 grip the leading edges of the webs ready for the next feed cycle. The wheel 17 carries the packages in succession to an end folding station and to a discharge station.
Patent GB-1265849-A (GB)
IPC: A47C7/18
Filed: 1969-08-27
Abstract: 1,265,849. Cushions. UNIVERSAL OIL PRODUCTS CO. Aug. 27, 1969 [Sept. 5, 1968], No.42568/69. Heading A4M. A cushion pad 2, e. g. of polyurethane, has a central portion 4 bordered along part of its periphery with raised edge portions 5 with sloping surfaces that intersect the top surface of the central portion, and is covered by a cover 3 with a strip 6 on its underside, the strip 6 being continuously fastened between the central 4 and edge portions 5. As shown the strip 6 is sewn to the. cover 3 and are adhesively secured in a slit 8 in the pad 2. In a modification, Fig. 2 (not shown), the strips (6<SP>1</SP>) are formed by a fold sewn into the. cover (3<SP>1</SP>) and are adhesively secured between separately formed central (4<SP>1</SP>) and edge (5<SP>1</SP>) portions.
Patent GB-1289638-A (GB)
IPC: C09B43/12
Filed: 1970-01-30
Abstract: 1289638 Monoazo dyes CIBA-GEIGY AG 30 Jan 1970 [13 Feb 1969] 4726/70 Heading C4P [Also in Division G2]  Monoazo dyes have the general formula wherein G denotes a naphthalene residue which in the 1-position contains an azo group, in the 2-position contains an optionally substituted phenylamino group and in the 8-position contains an OH group, as well as at least one sulphonic acid or sulphonic acid amide group; E denotes a mono- or bi-cyclic aromatic residue which contains at most 2 sulphonic acid groups or sulphonic acid amide groups, such that the residues G and E together contain 1-4 sulphonic acid or amide groups; M denotes a phthalic acid imide residue bonded to E via the imide nitrogen atom or denotes a residue of formula -NH-X-D bonded via the nitrogen atom, each of X and Y independently denote a residue -CO- or -CONH-, with the nitrogen atom being bonded to D or Q; each of D and Q denotes a mono- or bi-cyclic aromatic residue; Z denotes a residue of formula -CO- or -CONH- with the nitrogen atom bonded to A or an -SO 2 - residue; A denotes an unsubstituted aliphatic residue or an optionally substituted aromatic or heterocyclic residue and m and n each denote 1 or 2. The dyes may be prepared by reacting a compound of formula G-N = N-E-(M-) m-1 (NH-Y-Q) n-1 (NH 2  with a compound of formula A-T where T is a -OCN, -CO-Hal or -SO 2 -Hal where Hal is a halogen atom or with the anhydride of an aliphatic or aromatic mono- or di-carboxylic acid. The dyes are used as image dyestuffs for the silver dyestuff bleaching process.
Patent GB-1290492-A (GB)
IPC: B01D35/14
Filed: 1969-11-21
Abstract: 1290492 Rotary disc filter H MULLER 21 Nov 1969 [22 Nov 1968 16 Dec 1968 (2)] 57185/69 Heading BID [Also in Division Gl] In a filter wherein a plurality of disc elements 2 are rotated about a vertical axis to clean them centrifugally after filtration, a device 5 is provided, incorporating a radiation source and a detector, which is movable into such a position that radiation traverses the space above one element 2 and is interrupted when the filter cake on its, upper, filtering surface reaches a predetermined level. This interruption may give a signal or may automatically initiate the steps of stopping filtration, draining housing 1, withdrawing device 5 clear of the elements and initiating their rotation. The control circuit has an interlock to prevent the elements rotating unless device 5 is withdrawn. In Figs. 1, 2, device 5 is withdrawn radially by pneumatic or hydraulic piston 6 and comprises a bifurcated support with a lamp (7) on one limb opposite a photocell (8) on the other. When the device is withdrawn these parts are washed by spray 10. In Fig. 3 (not shown) the lamp and photocell are located outside the filter housing, where their temperatures may be readily controlled, and optical fibre bundles connect them to opposed faces of the limbs of the bifurcated support. Fig. 4 incorporates a similar arrangement but has the optical fibre bundles 15, 16 ending at spaced or concentric surfaces 13, 14 lying in a common plane. A reflector 22 may return light from one surface to the other but could be omitted, scattering of light by solids in the slurry to be filtered being sufficient. Instead of visible light, a radioactive source and an ionisation chamber could be used. These could be located in a bifurcated support and completely enclosed by corrosionresisting plastic.
Patent GB-1295174-A (GB)
IPC: C07C53/50
Filed: 1970-02-16
Abstract: 1295174 Polymerization of hexafluoropropene epoxide CHEMIEKOMBINAT BITTERFELD VEB 16 Feb 1970 7403/70 Heading C3R [Also in Division C2] Hexafluoropropene epoxide is polymerized or copolymerized, in the absence of oxygen, in the presence of hexafluoropropene and of an initiator other than silver nitrate. The hexafluoropropene-hexafluoropropene epoxide mixture used as starting material may be the reaction mixture obtained from the epoxidation of hexafluoropropene. Initiators specified are  metal fluorides, activated charcoal, quaternary ammonium chlorides, phosphonium salts and irradiation. In an example hexafluoropropene epoxide is homopolymerized using activated charcoal.
Patent GB-1312545-A (GB)
Title: Apparatus for measuring the content of alcohol
IPC: G01N27/70
Filed: 1971-07-14
Abstract: 1312545 Ionization gas detectors TOKYO SHIBAURA ELECTRIC CO Ltd 14 July 1971 33091/71 Heading G1N In a device for determining the alcohol content of a person's breath, an alcohol adsorbent 7 which has been exposed to such breath is heated within a tube 13 to vapourize the moisture and alcohol and dehydrogenate such vapour, the hydrogen being conveyed via a hydrogen filter 12 to a vacuum vessel 11, which as shown is a triode but may be an ion pump, Fig. 5 (not shown), or a diode, Fig. 6 (not shown). The adsorbent 7 is contained within a tube 3 which can be attached at one end to a balloon into which the person has blown, and at the other end to a pump so that a predetermined amount of breath can be drawn through the adsorbent 7, Fig. 1 (not shown). Heating is provided by a wire 14, the hydrogen filter being formed of a metal which also acts as a catalyst, e.g. palladium, zirconium, nickel or alloys thereof. Alternatively, coiled or plate filters may be used, a separate catalyst such as copper mesh being employed. The adsorbent 7 and tube 3, in another construction, are arranged in a branch tube leading from the tube 13, the branch tube being surrounded by its own heating wire, Fig. 4 (not shown). Suitable adsorbents include silica gel, activated carbon, molecular sieve or activated alumina.
Patent GB-1317111-A (GB)
Title: Control system for a respiratory appliance
IPC: A61M16/00
Filed: 1971-05-12
Abstract: 1317111 Respiratory appliances KOMBINAT MEDIZIN-UND-LABORTECHNIK VEB 12 May 1971 14392/71 Heading A5T A system for pneumatically or electrically controlling the valves 8 of a respiratory appliance e.g. a lung ventilator has a main circuit 1 for automatic control, and an emergency circuit for manual control which is actuated either on failure of the main circuit 1, or optionally. The emergency circuit has a store member 5, which receives a signal from the main circuit 1 via 2 on failure thereof, or when manual control is optionally selected, and which also receives control signals from an emitter 4, the output from the store member 5 passing to an amplifier 6 in series therewith, the emergency circuit also having an energy source 9 separate from that of the main circuit 1. The output from the amplifier 6 passes via an OR-element 7 to the valves 8 of the appliance. The emitter 4 is mounted on bellows 3 operated by a handle 10, and is actuated thereby, or by the handle 10. The elements of the emergency circuit may be pneumatic or electric, but preferably the emitter 4 is a pneumatic end-position switch, the store member 5 is a bistable fluidic store block, and the energy source 9 is a compressed air cylinder. A manual key may be provided in addition to the end-position switch 4.
Patent GB-1317729-A (GB)
Title: Cleaning gas mains
IPC: B08B9/049
Filed: 1969-12-12
Abstract: 1317729 Cleaning gas mains GAS COUNCIL 19 April 1971 [12 Dec 1969] 60780/69 Heading F2N In a method of cleaning a gas main 10, which main has been exposed by excavating the soil around it, the procedure is as follows:- (a) a by-pass 13 is connected at 14 and 15 along a short length of the main; (b) stoppers, such as inflatable bladders, are introduced between connexions 14 and 15 to isolate the section of the main therebetween; (c) the isolated section is opened up and a cleaning device, which comprises a cleaning unit 21 and a gas-driven unit 22 therefor, is inserted into one of the opened ends; (d) this open end is then closed by a cap 25 which has a gland through which pass pipes 23, 24 for supplying compressed gas to the cleaning device and for exhausting dislodged deposits; (e) the stopper adjacent connection 14 is removed and the cleaning device moved along the main to dislodge deposits therefrom and the deposits are exhausted through the pipe 24, the deposits being filtered out from the exhausted gas by a filter 27 and the gas fed to a compressor 29 via suction pump 28 for compressing and returning the filtered gas to the cleaning device through the pipe 23. The cleaning unit 21 (Fig. 6) has a compressed gas turbine 44 driving a flagellator 31, which comprises a rotary cleaning head carrying chains which flagellate the walls of the main to dislodge the deposits. Instead of compressed gas turbine 44, a suction turbine, driven by the deposit-laden exhaust gas, may drive the flagellator, Fig. 8 (not shown). The unit 21 is separably attached to the motive unit 22, Fig. 4, which propels the unit 21 along the main. The unit 22 also has a gas-driven turbine 36 which drives a wheel 34 engaging the wall of the gas main. Some of the compressed gas may be used to assist discharging of the deposits by directing jets of the gas against the walls of the main.