baber/WOPTO huggingface dataset:
Patent GB-1484679-A (GB)
Title: Voltage converters
IPC: H02M3/335
Filed: 1974-12-10
Abstract: 1484679 Automatic voltage regulation INTERNATIONAL STANDARD ELECTRIC CORP 10 Dec 1974 [10 Dec 1973] 53386/74 Headings G3R and G3X A pulse width modulated D.C. supply circuit includes an inductor connected to a D.C. source through a first switch, and connected in parallel with a second switch. A control circuit supplies a signal to the first switch with a duty cycle ratio such that the output voltage is compensated for variations in the source voltage. The second switch is closed by the control circuit if the output voltage exceeds a reference value lower than the compensated output voltage level. As shown, a logic circuit 3 receives an on/off control signal H with a duty cycle ratio inversely proportional to a supply voltage E i . This signal is normally fed to a switch S 1 in series with the primary winding of an inductor L, so that the output voltage E o  tends to rise to a predetermined level. However, the voltage E o  is compared in a circuit 4 with a reference value V r  lower than the predetermined level, and when this value is exceeded, a signal I cp  is produced, thereby closing a switch S2 and inhibiting subsequent closure of switch S 1 until the voltage has fallen below the reference value V r . The logic circuit 3 includes a flip-flop, AND gates and inverters, Fig. 7 (not shown). In another embodiment, Fig. 9 (not shown), the inductor L has a third winding which reduces the short-circuit current when the switch S2 is closed.
Patent GB-1237524-A (GB)
Title: Position to voltage transducer
IPC: F02D11/10
Filed: 1969-11-03
Abstract: 1,237,524. Electric correspondence control systems. FORD MOTOR CO. Ltd. Nov. 3, 1969 [Dec. 4, 1968], No. 53750/69. Heading G1N. In an automotive vehicle, the position of the throttle 14, which is connected to the diaphragm 38 of a servo 40 by a chain 42, is determined by the position of a shaped, metallic core member 106, preferably of ferromagnetic material, in a coil 116, the coil forming part of the tank circuit of an oscillator, Fig. 5 (not shown), whose output is thus indicative of the throttle position. The active element of the oscillator is an F. E. T. (156) having a gate electrode connected to one end of coil 116 and a source electrode connected to a centre tap of the coil. The output of the oscillator is rectified and filtered and may be displayed on a meter. The transducer may be used in the control of the vehicle speed as seen in Fig. 6, in which the valves are the vacuum valve 78 and atmospheric valve 80 of the servo, shown in Fig. 1. For a certain throttle angle setting # the transducer provides an output voltage V #  which is compared with a voltage E, representing the engine speed error signal, in a differential amplifier (204), Fig.7 (not shown), and depending on whether the engine speed is greater or less than that desired, one or other of the valves 78, 80 is actuated by amplifiers (206), (208) to adjust the position of diaphragm 38 and thus the throttle 14 until balance is obtained.
Patent GB-1242872-A (GB)
Title: Pulse generator
Inventor: ASHWORTH DAVID TREVOR
IPC: H03K5/26
Filed: 1968-11-14
Abstract: 1,242,872. Mono-stable circuit; frequency and phase detectors. STANDARD TELEPHONES & CABLES Ltd. 14 Nov., 1968, No. 53998/68. Headings H3A and H3T. A circuit 1 produces an output signal when an input signal reaches a predetermined value, and a feedback circuit 2, 3 responds to the output signal at 3a and the continuing input signal at 2a to inhibit continuation of the output signal as long as the input continues to exceed the predetermined value. Thus a short pulse is produced at the output each time the input signal passes through the predetermined value in a given direction. The circuits 1, 2, 3 may be NAND gates: with a signal "0" at the input, gates 1, 2 outputs are "1"; consequently the inputs of gate 3 are boch "1" and its output will be "0". If the input increases to "1" (the predetermined value) both inputs to gate 1 become "1" and its output therefore goes to "0", producing the start of the output pulse. The input a of gate 3 is thus "0" and its output goes to "1", so that both inputs to gate 2 are "1" and its output goes to "0"; thus the input b of gate 1 becomes "0" and its output returns to "1" to terminate the output pulse, the duration of which depends upon the propogation times of the gates 2, 3. The pulse may be lengthened by introducing delays in the outputs of the gates 2, 3. Alternatively, the gates 1, 2, 3 may be NOR gates, in which case operation is similar but with signal polarities and changes reversed. In a phase meter (Fig. 3, not shown), two signals whose phases are to be compared are fed to respective pulse generators (5, 6) whose outputs, produced each time the associated input reaches a given value in each cycle, set and reset respectively a bi-stable (7). The pulse width of the bi-stable output therefore varies with the phase relationship, and an integrator 8 produces a phase-dependent signal measured by an indicator 9. In a frequency discriminator (Fig. 4, not shown), a pulse generator (10) receives the F.M. signal and produces constant width pulses whose frequency thus varies at the modulation frequency. An integrator 11 obtains from this a signal whose amplitude varies at the modulation frequency. A frequency comparator (Fig. 5, not shown), producing an output when the frequency of an input signal to one pulse generator (2) falls below that of a reference frequency fed to a second pulse generator (1), includes a binary counter (4) containing two J-K flip-flops, which is started by the inverted (3) output from the reference generator (1) and reset by the next pulse from the signal generator (2). The counter reaches a count of 2 to produce an output signal only if two reference frequency pulses occur between two signal frequency pulses, indicating that the signal frequency has fallen below the reference frequency. Two such circuits (Fig. 6, not shown) are combined to provide an upper and a lower frequency sensitive circuit.
Patent GB-1247980-A (GB)
Title: Copper alloy cleaning process
Inventor: FORD JAMES ARTHUR
IPC: B23K1/20
Filed: 1969-11-05
Abstract: 1,247,980. Cleaning copper alloys. OLIN CORP. Nov. 5, 1969 [Jan. 6, 1969], No. 54269/69. Heading C7E. Cu-based alloys are cleaned by immersion in an aqueous alkaline solution of pH > 10 at 100‹F. to the boiling-point for at least 2 seconds, followed by immersion in an aqueous mineral acid solution at 75‹F. -200‹F. for 2 seconds to 5 minutes, said acid solution having a pH equal to that of an H 2 SO 4  solution of 3-50% by volume. The Cu-based alloy may contain Al, and have a coating of complex oxide, e.g. containing Al 2 O 3  . The alkaline solution may be KOH, LiOH, or preferably NaOH, and the acid may be H 2 SO 4 , HCl, or HNO 3 , optionally containing Na 2 Cr 2 O 7 , e.g. in amounts of 1 to 8 oz. per gallon.
Patent GB-1138207-A (GB)
Title: Process for the preparation of cyclododeca-1,5,9-triene
IPC: C07C2/46
Filed: 1965-12-22
Abstract: 1,138,207. Cyclododecatriene-(1,5,9). TOYO RAYON K.K. 22 Dec., 1965 [29, Dec., 1964; 17 May, 1965; 18 May, 1965; 24 May, 1965; 25 May, 1965], No. 54413/65. Addition to 1,016,669. Heading C5E. [Also in Division B1] Cyclododecatriene-(1,5,9) is prepared by trimerizing 1,3-butadiene in the presence of a catalyst comprising as components:--"- (a) A titanium carboxylate having one of the formulae (i) Ti(OOC.Ar) k Cl 4-k ; or (ii) Ti(OOC.Ar) l (OR) 4-l ; or (iii) Ti(OOC.Ar) m X 4-m .n(Ar<SP>1</SP>COOR<SP>1</SP>) where Ar and Ar<SP>l</SP> are the same or different aryl groups, R and R<SP>1</SP> are alkyl groups, X is Cl or an OR group, k is 1 or 3, l and m are 1, 2 or 3, and n is 1 or 2; and (b) An organo-aluminium compound of formula R<SP>11</SP>qAlZ 3-q  where R<SP>11</SP> is alkyl or aryl, Z is halogen and q is 1, 1À5 or 2. When component (a) has the formula (iii) the catalyst is preferably aged in an inert solvent at a temperature not above 30‹ C.
Patent GB-1491699-A (GB)
Title: Base sheets for printing with reactive dyes
IPC: B41M3/00
Filed: 1974-12-19
Abstract: 1491699 Coating compositions F WACHENDORFF W WACHENDORFF and B WACHENDORFF [trading as C F WACHENDORFF GmbH & CO KG] 19 Dec 1974 [19 Dec 1973] 54894/74 Heading C3P [Also in Divisions B1-B2 and D1-D2] Binders for a reactive pigment coating on at least one surface of a base sheet suitable for printing with reactive dyes comprise a mixture of a binder which is readily soluble in alcohol and a binder resistant to alcohol, the combination of pigment and binders being such that the alcohol resistance of the coated base sheet is from 50-70% of the reference value for a glass plate. The pigment may comprise attapulgus clay and/or kaolin, or Silton clay. The binder may comprise a mixture of acrylate copolymers. In an example a binder comprising a mixture of an aqueous anionic dispersion of an acrylate copolymer having a pH of 3À5-4À7 and an aqueous anionic dispersion of an acrylate copolymer having a pH of 7À5 to 8À5 is used. The base sheet may be paper, cardboard, paperboard, plastic film, or metal. The reactive dyes which may be printed on the sheet may be of the basic chromogenic alcohol-soluble lactone type.
Patent GB-1192225-A (GB)
Title: Estra-1,3,5(10),15-Tetraenes and -1,3,5(10),6,8,15-Hexaenes
IPC: C07J75/00
Filed: 1967-07-07
Abstract: 1,192,225. #<SP>15</SP>-Estrapolyenes. STERLING DRUG Inc. 7 July, 1967 [11 July, 1966], No. 56142/68. Divided out of 1,192,224. Heading C2U. Novel estratetraenes and estrahexaenes of the formula wherein R is hydrogen or C 1-12  carboxylic acyl. R<SP>1</SP> is hydrogen, C 1-6  alkyl, C 2-6  alkenyl, C 2-6  alkynyl, hydroxy-C 2-6  alkynyl, or halo-C 2-6  alkynyl, and R<SP>11</SP> is hydrogen, C 1-6  alkyl or C 1-12  carboxylic acyl, are prepared from the corresponding 3-hydroxy or alkoxy-17-oxo compounds by metal hydride reduction (for products where R=R<SP>1</SP>=H) or by reaction with an R1- organometallic compound (for products where R=H, and R<SP>1</SP> = other than H), with subsequent 17-mono or 3,17-diesterification if required. Novel 3 - (C 1-6  alkoxy) - 16 - benzoyloxy- 1,3,5(10),15 - estratetraene - 17 - ones are prepared from the corresponding 15,16-saturated - 15#,16# - diol - 17 - one - 16 - benzoates by the action of pyridine. The above novel compounds are said to possess cholesterol-lowering, blood lipid level-altering and estrogenic properties.
Patent GB-1384490-A (GB)
Title: Windscreen wiping and washing installation
IPC: B60S1/48
Filed: 1973-12-07
Abstract: 1384490 Windscreen cleaning installations VDO ADOLF SCHINDLING AG 7 Dec 1973 [21 Dec 1972] 56911/73 Heading A4F A windscreen washer pump 4 is electronically controlled to deliver pulses of washing liquid in synchronism with the movement of a windscreen wiper. The pump 4 is driven by a motor 3 having in series with its manual control switch 5 relay contacts 14 operated by a coil 13 receiving the output of a transistor 12, the control electrode of which is connected to a fixed contact 11 connected intermittently to a positive potential by a movable parking switch contact 8 operated by a cam 9 on the shaft of a wiper motor 1. Multivibrators 17, 15 in the circuit between the contact 11 and the transistor 12 control the timing and duration of the electrical pulses energizing the motor 3.
Patent GB-1418298-A (GB)
Title: Process for the manufacture of amino-derivatives of n-heterocyclic compounds
IPC: C07D253/075
Filed: 1972-12-11
Abstract: 1418298 Amino derivatives of aromatic N -heterocyclic compounds SCHERING AG 11 Dec 1972 [18 Dec 1971] 57077/72 Heading C2C A process for the manufacture of amino derivatives of N-heterocyclic compounds comprises silylating an aromatic N-heterocyclic compound that is substituted by at least one hydroxyl or mercapto group and reacting the resulting O and/or S silylated compound with either (i) ammonia or an amine of the formula HN(R 1 )(R 2 ) wherein R 1  and R 2  each represent a hydrogen atom or an alkyl, aralkyl, aryl or hetrocyclic group, or R 1  is a hydrogen atom and R 2  is a hydroxyl or amino group or a terminally substituted alkyl group, or R 1  and R 2  together with the nitrogen atom represent a heterocyclic group, in the presence of a Lewis acid catalyst, or (ii) a salt of such an amine as above in the presence of both a Lewis acid catalyst and a tertiary base, the catalyst in process (i) or (ii) being present in an amount of from 0À001 to 5 moles per mole of the silylated compound. The starting material is suitably an oxazole, imidazole, pyridine, pyrimidine, pyridazine, triazine, purine, quinoline, isoquinoline, acridine or indolenine. The silylation is suitably carried out by means of hexamethyl-disilazone in the presence of either trimethylchlorosilane or an ammonium salt. Examples describe the preparation of the novel compounds N6-butylidene-adenine; 2- amino - 6 - pyrrolidino - purine; 2 - butylideneamino - 3H - indolenine; 2,4 - bis - (# - phenethylamino) - pyrimidine and 3,5 - bis - (# - 3,4- dimethoxyphenethyl) - 1,2,4 - triazine, as well as N<SP>6</SP> - # - phenethyl - adenine; 4 - pyrrolidinopurine; 9 - (# - diethylaminoethyl) - aminoacridine; 2 - benzylamino - quinoline; 2,4,6- tris - 1 - pyrrolidyl - 5 - triazine; 2,4 - diaminouracil picrate and 2,4-diamino-5-(2<SP>1</SP>,4<SP>1</SP>,5<SP>1</SP>-trimethoxybenzyl )pyrimidine.
Patent GB-1215707-A (GB)
Title: Process for the production of gelatinous material
Inventor: CHARIER-VADROT PIERRE
IPC: A23L3/44
Filed: 1967-12-20
Abstract: 1,215,707. Gelatinous products. P. CHARIER-VADROT. 20 Dec., 1967 [22 Dec., 1966; 23 Jan., 1967 (2); 27 April, 1967], No. 57794/67. Headings A2B and A2D. [Also in Division C3] A process for the production of a gelatinous product comprises freezing a hydrated primary product comprising collagen or a partially hydrolysed collagen and not more than 30% by weight of water and lyophilising the frozen product. Optional ingredients include moleic acid, dextrose, natural gums, sucrose monostearate, citric acid and lactic acid. The composition may be used in salad creams, custards, dehydrated soups and sauces: in examples it is added to raw beef and corned beef to form solid slabs.
Patent GB-1144420-A (GB)
Title: Foundation sealing system for a sealed storage structure
Inventor: EVERS WILLIAM JAMES
IPC: B65D90/08
Filed: 1967-12-20
Abstract: 1,144,420. Joint-making packing; bolted joints. A. O. SMITH HARVESTORE PRODUCTS Inc. 20 Dec., 1967 [27 Dec., 1966], No. 57822/67. Headings F2B and F2H. [Also in Division E1] A joint between a concrete base 2 and a wall 6 of a gas-tight storage structure 1 is sealed by mastic sealing material 10 which may be injected through conduits, e.g. passages 18 in anchor bolts 11, extending through the wall from outside the structure to the interface between the base and the wall. The structure is supported on footings 3 and an anchoring element 7 comprising angle bars 8 extending around the base 2 is secured to the wall 6. Before the concrete base 2 is poured a continuous fillet of sealing material 10 is applied to the inner surface of the element 7, the sealing material being disposed over the inner end 12 of each bolt 11 and being guided around connections 13 by U members 17. After the base 2 is formed, sealing material is injected under pressure through successive bolts 11 to ensure that any voids 19 between the base 2 and the element 7 are filled. The outer ends of the passages 18 in the bolts 11 are closed by caps 22. If a leak develops subsequently additional sealing material may be injected through the bolts.
Patent GB-1240020-A (GB)
Title: Triazinyl-aminostilbene derivatives
Inventor: MULLER KARL-WALTER
IPC: D06L4/65
Filed: 1969-11-26
Abstract: 1,240,020. Treating textiles. FARBENFABRIKEN BAYER A.G. 26 Nov., 1969 [29 Nov., 1968], No. 57883/69. Heading D1P. [Also in Division C2] Mixtures of stilbene derivatives of formula are used for the optical brightening of textiles, e.g. cotton. The stilbene derivatives may be used in conjunction with other textile finishing agents and are subsequently thermally fixed in the presence of acidic catalysts.
Patent GB-1190250-A (GB)
Title: Non-Shock Container Handling Apparatus
Inventor: REIMERS JAMES LOUIS
IPC: A23L3/00
Filed: 1967-12-21
Abstract: 1,190,250. Endless conveyers. FMC CORP. 21 Dec., 1967 [5 Jan., 1967], No. 58003/67. Heading B8A. Spaced rows of containers C on a conveyer 70 are moved transversely into a transfer member 72 while still moving in the direction of conveyance of the conveyer 70, this movement being terminated gently by the containers sliding to a stop. The container row is swept into a pocket 74 of the member 72 by a rotating vane 108. Sliding friction between each container row and the surfaces with which it engages on the vane 108, a transfer platform 104, and the sides 102 of the respective pocket 74, cause the gentle termination. Converging rails 108, 109 bring all of the containers of the row into abutment as the member 72 rotates. A member 113 prevents the containers C from falling out of the pockets 74, and where this terminates, the container row slides out into a pocket of a cooker conveyer 40. The drives of the conveyer 70, the vane 108, and the member 72 are all derived by gearing from the drive of the conveyer (40) (Fig. 1, not shown).
Patent GB-1269063-A (GB)
Title: Improvements in or relating to rotary piston machines
Inventor: CLARKE JOHN MICHAEL
IPC: F01C9/00
Filed: 1968-12-06
Abstract: 1,269,063. Rotary-piston machines. AVIATION SUPPLY MINISTER OF. Dec.4, 1969 [Dec. 6, 1968], No. 58177/68. Heading F1F. A rotary piston machine including a piston mounted for rotation within a casing, wherein the circumferential periphery of the piston sweeps over a spherical path of constantly varying width, and a substantially ring-like sealing member comprising an oblique section of a hollow sphere is interposed between the circumferential periphery of the piston and the casing. The invention is described with reference to a rotary-piston machine of the nutating piston type comprising a disc-like piston 1, Fig. 1, having radial diametrically disposed lobes 18, 20 on one face, radial diametrically disposed lobes (17), 19 at 90 degrees to the other lobes on the other face and part spherical bosses 5, 6 and a casing having end housings 2, 3 with an interposed part-spherical housing 4 so that when the piston rotates the lobes 18, 20 and 17, 19 sequentially abut the plane end-faces of the housings 2, 3 to form variable volume chambers. Between the part-spherical rim of the piston 1 and the part-spherical inner periphery of the housing 4 is disposed a resilient ring-like sealing member 25 in the form of an oblique section of a hollow sphere having around its periphery a plurality of circumferentially spaced transducers 29, Fig. 3, which sense the proximity of the ring-like member with respect to the rotor and control actuators 28, one for each transducer, which as shown are screws, to vary said proximity. At slow speeds when sealing is paramount the ring 25 is adjusted into close proximity to the piston and at higher speeds when sealing is not so important and wear rates greater, the screws 28 are adjusted so that the clearance between the piston and ring 25 is greater. In a modification, the transducer signals may be used with appropriate circuitry to operate electropneumatic, electro-hydraulic or electromechanical actuators. Each of the lobes 17, 18, 19, 20 may comprise a seal member 30, Fig. 4, supported by a pair of flanged keeper plates 31, 32 and resiliently loaded by a cruciform section resilient synthetic rubber strip 35.
Patent GB-1207380-A (GB)
Title: Diving casque
IPC: A62B18/04
Filed: 1967-12-27
Abstract: 1,207,380. Diving helmets. SOC. INDUSTRIELLE DES ETS. PIEL, and E.F.A. ETUDES ET FABRICATIONS AERONAUTIQUES. 27 Dec., 1967 [26 Dec., 1966], No. 58725/67. Heading B7U. A diving helmet comprises a rigid outer shell 2 and an inner head-fitting inner hood 1 separated by a floodable space 3, the hood and shell being water-tightly connected round a facial opening 1b arranged to be covered by a glass 4. The glass 4 is pivoted on eccentrics rotatably mounted on the sides of the outer shell. Rotation of the eccentrics causes the glass to move away from the opening 1 so that it can be pivoted to a position above the outer shell. A notch 19 in the lower rim 2a of the outer shell provides an opening for the formed chin portion 20 of the hood. A breathable gas is supplied to and removed from the space 5 through a regulator assembly (31), Fig. 2 (not shown), mounted on the outer shell. To assist in sealing and positioning of the helmet, the arrangement shown in Fig. 9 may be provided. The arrangement comprises a frontal band 38 fixed to the hood in the region of the forehead and a collar comprised of two neck bands 36 attached to the rear of the outer shell and passing around the neck portion of the hood. Two strings 40 are connected to the rear of the outer shell and each passes forward through a ring at the adjacent end of the frontal band 38 and then through a ring 42 at the forward end of the adjacent neck portion. The strings 40 are connected and loaded by aweight.
Patent GB-1283288-A (GB)
Title: Neutral grey glass
IPC: C03C3/078
Filed: 1970-12-10
Abstract: 1283288 Grey glass compositions ASAHI GLASS CO Ltd 10 Dec 1970 [11 Dec 1969] 58759/70 Heading C1M A neutral grey coloured heat-absorbing glass, particularly for use in the float glass process, consists essentially of the following components in percentages by weight: with the following colouring components:-  The following components may be present up to 0À5% TiO 2 ; SO 3 ; Sb 2 O 3 ; As 2 O 3 ; Cl; ZnO, and up to 0À1% SnO 2 . The NiO is normally present as an impurity and preferably no further NiO is added.
Patent GB-1197096-A (GB)
Title: Improvements in or relating to Devices for Compacting Moulding Sand in the Production of Casting Moulds
IPC: B22C15/12
Filed: 1967-12-28
Abstract: 1,197,096. Moulding machines. H. WAGNER, [trading as HEINRICH WAGNER MASCHINENFABRIK]. 28 Dec., 1967 [28 Dec., 1966], No. 58925/67. Heading B3F. Sand in a succession of mould boxes 3 is compacted by dropping a battery of rows of rammers 10 movably guided by cylindrical portions 9 in sleeves of a frame 5 suspended from a beam 12 lifted by a compressed air cylinder 15 and piston 16 to raise the rammers. Buffers 34 determine the bottom position of the frame and beam. The rammers 10 and their heads 8 may be of square or hexagonal section. The air cylinder 15 is fixed to a frame member 14 and air from its inlet groove 21 passes into the piston 16 (containing a space-resitrictor 18) through a piston groove 20 until this is cut off by the rising of the piston. A further cylinder groove 22 releases the air when cleared by the piston skirt to allow the piston 16, beam 12, frame 5 and rammers 10 to drop. The mould boxes 3 are advanced step-by-step by a conveyer 2, being filled by a hopper behind the machine and bevelled by a scraper (27) at the front.