baber/WOPTO huggingface dataset:
Patent GB-1280733-A (GB)
Title: Colour television circuit arrangement
Inventor: JAESCHKE FRITZ
IPC: H04N9/78
Filed: 1970-08-12
Abstract: 1280733 Colour television FERNSEH GmbH 12 Aug 1970 [16 Aug 1969] 38811/70 Heading H4F A PAL colour television signal having quarter line offset is separated into its luminance and chrominance components by transit time analysis in which the signal is delayed for one and two line durations and in which a delay line having a delay of “ of the colour carrier period is used. In Fig. 1 the phase diagrams of a “ line offset PAL signal in four successive lines are shown in column a, Y<SP>11</SP> indicating the high frequency portion of the luminance component and F and F the chrominance signal and complex conjugate chrominance signal respectively. By adding the (n+1) and (n-1) lines the chrominance-free luminance signal Y<SP>11</SP> is obtained as shown in column b, and by subtracting then (column c) the chrominance signal F (or F) is obtained and by subtracting the signals in columns a and b the chrominance signal F (or F) is obtained. The signal represented in column d is then delayed by “of the colour carrier period and the resulting signal (column e) is added and subtracted to the signal represented in column c to obtain the carrier frequency components U and ŒV (columns f and g). The high frequency component of the luminance signal Y<SP>11</SP> in column b is then supplemented by the low frequency component.  In a first embodiment, Fig. 2, the PAL signal is separated into two frequency ranges by high and low pass filters 1 and 13, and the chrominance signal and high frequency luminance component are fed via two one line period delays 2 and 3 and then the above described operations are effected thereon. The low frequency luminance componence is delayed by one line period 14 and added 15 to the separated high frequency luminance component. In a second embodiment, Fig. 3, the PAL signal is not split into two frequency ranges, and to derive the separated luminance signal the output of one line delay 16 is further delayed 27 by “ of the colour carrier period and U is subtracted therefrom 29, 28 and ŒV added thereto 30. In a modification of this arrangement, (Fig. 4, not shown)reflection at the end of a single one line period delay line is used, the direct and reflected (two line period delayed) signals being combined with the input signal correctly dimensioned both directly and phase inverted to obtain the signals represented in columns b and c of Fig. 1.
Patent GB-1477677-A (GB)
Title: Reversible door
IPC: E06B3/72
Filed: 1974-09-09
Abstract: 1477677 Doors ELECTROLUX AB 9 Sept 1974 [13 Sept 1973] 39277/74 Heading E1I A door comprises a frame 14 with an opening covered by two panels face-to-face, each panel having a peripheral Z-shaped portion 22, 23, 24, and being secured to the frame by retaining members 25. Member 25 is a resilient arm with an inclined arm 28 facilitating snap-fitting with part 24 on the adjacent panel. The panels are sheet metal or of glass or wood with metal surrounds.
Patent GB-1248159-A (GB)
Title: A dishwasher
Inventor: MAZZA L
IPC: A47L15/42
Filed: 1969-08-06
Abstract: 1,248,159. Dishwashing machines. INDUSTRIE A ZANUSSI S.p.A. Aug.6, 1969 [Aug.7, 1968; Dec.28, 1968], No.39368/69. Heading A4F. The washing chamber of a dishwashing machine is divided by a baffle 13 into two washing zones 11, 12 for articles such as saucepans and cutlery and for fragile articles such as plates, respectively each zone being provided with at least one sprayer 17 or 18, the sprayers being supplied with washing liquid by a single pump 16, and a device such as a valve 21 is provided controlled by means adapted to be actuated at a predetermined time in a wash cycle, or when the temperature of the washing liquid reaches a predetermined value, to prevent spraying of the fragile articles in the zone 12. In other embodiments the dividing baffle is horizontal and may be carried by one of the sprayers. Also the valve when closed 15 cut-off the washing liquid supply to the sprayer for the fragile articles may open a by-pass to the inlet side of the pump to reduce the pressure of the liquid sprayed on the saucepans, &c. In further embodiments the valve is omitted and a louvre device is provided in front of the sprayer for the fragile articles, which louvre is actuated by means responsive to the temperature of the washing liquid or by a programme timer 15 prevent sprayed liquid from reaching the fragile articles when the washing liquid reaches a predetermined temperature.
Patent GB-1217310-A (GB)
Title: A turning device for a reversible plough
IPC: A01B3/426
Filed: 1969-08-06
Abstract: 1,217,310. Agricultural implements &c. SOC. ANON. DES ETABS. FENET. 6 Aug., 1969 [14 Aug., 1968], No. 39391/69. Heading A1B. A device for turning a plough whose headstock 1 and forward part of pivoting section 2 which bears the plough shares are shown, comprises two pull and lift rods 11 connected to a tractor three-point coupling system together with a top thrust connecting rod 13 which is articulated on a lever 15 which is pivoted in the upper part of a pillar 17 and has a fork 21 between whose prongs the top part of a turn control rod 22 can slide, the bottom part 23 of which is articulated on a crank pin 62, a spring 25 connecting the two parts. When the plough is in a working position the control rod 22 is hooked by its notch 32 to the cross-bar 33 of fork 21, the spring 36 contributing to holding the rod 22 in this position. When the plough has to be turned, bars 11 and 13 are made to pivot in the direction of the arrow f1 by means of the three-point coupling system, and under the weight of the plough lever 15 pivots to the position shown in Fig. 4 (not shown), the spring 25 being extended to its maximum. The locking system which consists of a bolt 38 engaged in a boss 41, Fig. 2 (not shown), is released, so that under the weight of the plough and the action of the connecting spring 25 the pivoting section 2 rotates about the spindle in the sleeve 4. During the first quarter turn, crank pin 62 rises to the top of its path, spring 25 relaxes and notch 32 and the cross-bar 33 of fork 21 become disengaged. Then during the second quarter turn, crank pin 24 and control rod 22 come down again on the other side until the pin stop 29 comes to rest on the fork 21, while the bottom part 23 and crank pin 62 continue to descend until the locking bolt 38 engages the boss 42, the spring 25 expanding and absorbing the shock at the end of the ploughs pivotal movement. All the parts are now in the positions shown in Fig. 5. The three-point system is lowered, lever 15 pivots thus enabling part 22 to rise until the fork 21 engages the notch 32, spring 36 pushing the crank pin 62 towards the rear and lever 15 comes up against the screw 8 as in Fig. 1.
Patent GB-871897-A (GB)
Title: Nuclear reactor
IPC: G21C15/22
Filed: 1958-12-08
Abstract: 871,897. Controlling nuclear reactors; handling nuclear fuel elements. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 8, 1958 [April 4, 1958], No. 39441/58. Class 39(4). A nuclear reactor with a boiling moderator is controlled by varying the void space in the moderator. Fig. 1 shows a D 2 O cooled and moderated reactor containing tubes 50 containing a variable amount of moderator. The tubes 50 and fuel elements 48 are mounted in stainless steel grids 46, 52 in a carbon steel pressure vessel 22. The tubes 50 are arranged hexagonally and each is surrounded by six fuel elements, Fig. 3. Fig. 4 shows a tube 50 and two fuel elements 74 in which moderator is boiled supported in flared adapters; the tube 50 is screwed in and is fed with moderator through a tube 187. Each tube 50 is of Zircalloy II and the fuel elements have. sheaths 118 of the same alloy, with pierced conical tips 120 and lifters 132. The fuel elements contain six hexagonal assemblies of 'fuel rods 138, Fig. 6; the rods have narrow ends held in a grid 140 of webs 148 welded to an inner sheath 136. The control tubes carry sleeves 180 with pivoted arms 184 for mutual support between the tubes and fuel elements. Fig. 9 shows the control system. A reservoir 218 is connected to tubes 50 by a cooler 216 and a reversible pump 222. Either the level is held constant by a device 230, or the steam pressure is held constant by a pressure reservoir 234 operating through a pump by-pass 238. A dump valve 232 is provided. The tubes 50 may be controlled together, in groups, or individually. The lower grid 52 rests on a drum containing the steam outlet 62 and carries a tank 66 of Zircalloy II. Cool moderator enters through a pipe 70, fills tank 66, overflows, rises through the outer fuel elements 74, and boils. The steam then travels down the long fuel elements 76 where it is superheated and is fed to a turbine 244 for use. A tank 250 of boron-containing liquid is provided for fast shut-down. The pressure vessel has a stainless inner surface and encloses a boron steel shell 38 separated by a coolant space; the vessel is surrounded by steel wool, a stainless steel sheath, a water-cooled lead and steel thermal shield 188, and a cooled concrete shield. The fuel elements are seated in the upper grid by rings 162; in discharging, the control tube is unscrewed and removed, then the fuel elements are lifted to clear the adapters, moved into the space left by the tube, and lifted out by a tool with a parallel motion linkage. The fuel rods in the boiling elements 74 have UO 2  ceramic pellets of 1.3% enrichment; the superheaters have UO 2 -Mgo pellets of 3% enrichment. The inner sheath, grids, and rod clading of the former are of Zircalloy II, of the latter, stainless steel. The use of movable solid moderator (graphite, Be) in the tubes 50 is mentioned.
Patent GB-881585-A (GB)
Title: Improvements in or relating to processes for producing vinyl alcohol polymers and copolymers
IPC: B29B9/00
Filed: 1958-12-08
Abstract: In the manufacture of polymers and copolymers of vinyl alcohol by the alcoholysis of the corresponding vinyl carboxylic ester polymers the vinyl ester polymers are treated at 20-60 DEG C. in a cross-linked condition and in the form of discrete particles such as beads, whereby vinyl alcohol polymers and copolymers also in the form of discrete particles are obtained.  The cross-linking of the vinyl ester polymers or copolymers may be effected by producing the polymer or copolymer in the presence of a cross-linking agent, e.g. divinyl adipate, in a proportion of 0,02-50 mols., preferably 0,1-10 mols., per 1,000 mols. of monomer.  Specified alcoholysis catalysts are sodium or potassium hydroxide or methylate, sulphuric or hydrochloric acid, or sulphonic acids.  The reaction mixture may include a swelling agent for the vinyl ester polymer or copolymer, e.g. benzene, and a diluent, e.g. acetone, may also be present.  Examples of the alcoholysis of polyvinyl acetate with methyl alcohol are given.
Patent GB-942680-A (GB)
Title: Speed control system
Inventor: PRESCOTT EDWARD HORACE ALBERT
IPC: H02P29/00
Filed: 1960-11-18
Abstract: 942,680. Automatic speed control. PYE Ltd. Nov. 15, 1961 Nov. 18, 1960], No. 39706/60. Heading G3R. A system for controlling the output speed of an electromagnetic coupling device 1 includes a tacho-generator 2 driven from the output shaft of the device and a full-wave rectifier circuit producing the excitation current for the device and comprising a pair of silicon controlled rectifiers SCR1, SCR2 the conductance of the rectifiers being controlled in dependence upon an error signal derived from the series-opposition connection of the tacho-generator voltage with a reference voltage, representative of the desired speed, obtained from a variable resistor RV1. The firing angle of the rectifiers is controlled by a pulse generator circuit comprising transistors TR1, TR2, and TR3, the pulse voltage being applied to the trigger electrodes of the rectifiers through diodes D4 and D5 from the emitter circuit of transistor TR2. The pulse-rate is controlled by the rise time of the voltage across condenser C1 which time is itself controlled by the transistor TR3 which is bottomed by the bias network formed by resistors R6 and R7 with feedback resistor R5. With no error voltage from the control loop, the rectifiers will fire over the maximum firing angle, governed solely by resistor R4. Any error voltage assists the feedback voltage across R5 and controls the charging resistance to condenser C1 thus controlling the firing angle of the rectifiers and hence the speed of the coupling 1. A diode D3 across the coupling 1 protects the rectifiers from the high inverse voltage which would be present if no current path were available where the rectifiers are non-conducting. A variable resistance RV2 is provided so that the current in the field winding 2a of the tacho-generator 2 may be varied to enable a maximum speed to be set for the maximum reference voltage appearing across the resistor RV1. Specification 871,437 is referred to.
Patent GB-947649-A (GB)
Title: Thiadiazole carboxylic acid and its derivatives
IPC: C07D285/10
Filed: 1960-11-22
Abstract: The invention comprises 3-substituted -1, 2, 5-thiadiazoles of formula: <FORM:0947649/C2/1> and salts thereof, where X is -COOH, -COO-alkyl (1-5C), -CONH2, -CONHNH2 or -CON3, and specifically 1, 2, 5- thiadiazole -3- carboxylic acid, methyl and ethyl 1, 2, 5-thiadiazole -3-carboxylate, 1, 2, 5- thiadiazole -3- carboxamide, 1, 2, 5-thiadiazole -3- carboxylic acid azide and hydrazide, and ammonium and alkali metal salts of 1, 2, 5- thiadiazole -3- carboxylic acid.  The compounds are prepared by heating 1, 2, 5-thiadiazole -3, 4- dicarboxylic acid or mono-alkyl ester thereof at 120-200 DEG C. to remove one carboxylic group, alone or in an inert solvent such as mesitylene, diethylene glycol diethyl ether, phenetole and anisole.  The mono-acids may be esterified or the salts prepared by treatment with a base, and a carboxamide prepared by treatment of an ester with dry ammonia gas. The esters may also be treated with hydrazine, and the hydrazide product treated with alkali metal nitrite preferably in an aqueous acidic solvent medium to precipitate the azide.  The azide is active against soil fungi and nematodes.  Specification 928,571 is referred to.
Patent GB-1268654-A (GB)
Title: Electroacoustic transducers
Inventor: JONES GEORGE WILLIAM
IPC: H04R1/08
Filed: 1969-08-12
Abstract: 1,268,654. Audio transducers. PLESSEY CO. Ltd. 22 April, 1970 [12 Aug., 1969], No. 40268/69. Heading H4J. An electroacoustic transducer comprises a cup shaped ease 1, a diaphragm 2 inside the case, a perforated cover 3 closing the case, an acoustically flexible sealing membrane 4 positioned between the diaphragm and cover, and an apertured guard 8 in the shape of a cart wheel and arranged to prevent the membrane from obstructing the perforations 7. Without the guard, which is made of polypropylene and comprises an annular gasket portion 9 connected to a circular central by spoke-like portions 11, the membrane could obstruct the perforations in the event of low pressure outside the case. The perforations conduct sounds to and from the diaphragm.
Patent GB-1437753-A (GB)
Title: Acylaminophenyl-acetamidine compounds their production and their medicinal use
IPC: C07C231/12
Filed: 1974-09-17
Abstract: 1437753 N - (Acylaminophenyl)acetamidines BAYER AG 17 Sept 1974 [18 Sept 1973] 40445/74 Heading C2C The invention comprises compounds of formula and their salts, wherein R is C 3-8  alkoxyalkyl or alkenyloxyalkyl, and may be substituted by alkoxy or Ph. These compounds are prepared in examples by reacting (a) p-NH 2 C 6 H 4 N: CMeNMe 2  with an appropriate acylating agent, or (b) p-RCONHC 6 H 4 NH 2  with N,N-dimethylacetamide or -thioacetamide or an acetal derivative thereof. Therapeutic compositions having antiparasitic activity comprise compounds of the above formula and may be administered orally, parenterally, rectally, topically or by spray. Reference has been directed by the Comptroller to Specification 1,325,527.
Patent GB-870231-A (GB)
Title: An improved injection press
IPC: B29C45/68
Filed: 1958-12-16
Abstract: 870,231. Injection moulding machines. FRANCAISE. Dec. 16, 1958 [Jan. 16, 1958], No. 40613/58. Class 87(2). Levers 8, 9 pivoted at 11 to a mould carrier plate D are freely mounted at one end on an annular piston 6, the other end of each lever having a lug 12 adapted to engage a notch 10 in a side member E so as to allow rocking movement of the levers 8, 9 and produce closing pressure between the mould parts A, B. The annular piston 6 is moved by fluid pressure admitted through channels 13, 4. The piston 6 has an enlarged base 5 sliding in a cylinder 1, fluid under pressure being admitted to a space 20 towards the end of the stroke of cylinder 6 to produce an increased closing pressure on the mould. In Fig. 1, this is effected when the stem of a valve 17 contacts the plate D to open the valve 17 and connect the space 20 to the interior of cylinder 6 through a channel 21. In Figs. 3, 4 (not shown) fluid pressure is supplied direct to the space 20 when one of the lugs 12 engages a valve operating rod mounted in the side member E. This valve simultaneously supplies fluid pressure to the injection piston.
Patent GB-929575-A (GB)
Title: Semiconductor devices and methods of making them
IPC: H01L21/22
Filed: 1959-12-01
Abstract: 929,575. Semi-conductor devices. RADIO CORPORATION OF AMERICA. Dec. 1, 1959 [Dec. 24, 1958], No. 40826/59. Class 37. A method of fabricating a semi-conductive device includes a conversion process by which a thin surface layer of a semi-conductive wafer of given conductivity type is converted to the opposite conductivity type, a removal process by which selected portions of the thin converted layer are removed from the wafer, and a subsequent heating by which, after the removal process, type-determining material is diffused from the remaining portions of said converted layer more deeply into the body of said wafer, said subsequent heating being performed in an ambient which includes a substance capable of imparting said given conductivity type to the material of which the wafer is formed but with the amount of said substance which diffuses into said wafer being insufficient to alter the conductivity type of said converted layer. In one example a slice 10 of P-type silicon is heated in ammonium phosphate vapour so that a glassy phosphorus-containing film is formed on each of its major surfaces and some phosphorus diffuses into the slice to form N-type surface layers 12 and 12<SP>1</SP>. The phosphorus-containing film is then removed by immersion in concentrated hydrofluoric acid. Acid-resistant wax dots 14 are then sprayed on to one surface with the aid of a perforated metal mask and the opposite surface is protected by a glass slide 15. The slice is then treated in a mixture of concentrated hydrofluoric and nitric acids which etches away those portions of the surface layer 12 not protected by the wax dots 14. The latter are next removed by washing in a solvent such as carbon tetrachloride and the slice 10 removed from the glass slide 15. P-type silicon slice 10 now has a number of mesas or raised portions 16 of phosphorus-diffused N-type material on one surface and a layer 12<SP>1</SP> of N-type material on the opposite surface. Reheating in an ambient containing boron trioxide results in the diffusion of phosphorus from each mesa 16 and from the layer 12<SP>1</SP> deeper into the slice so that the distance between the opposing rectifying barriers 13 and 13<SP>1</SP> is reduced in a controllable manner. The presence of boron enables the conductivity of the P-type silicon to be controlled. The slice is then diced along planes separating the mesas 16 to provide individual units which are provided with leads and encapsulated by conventional methods. Modifications of the above example include omitting the step of removing the phosphorus-containing film prior to depositing the wax dots; commencing with an N-type silicon or germanium slice; utilizing a powder or liquid instead of a vapour in the conversion process; utilizing grinding wheels for the removal process; and utilizing a photo-resist in place of an acid-resist for the masking step. As, In and Ga are mentioned as suitable impurities in the modifications.
Patent GB-888660-A (GB)
Title: Improvements in or relating to methods of uniquely identifying any channel of a multi-channel fluid flow system
Inventor: CUNNINGHAM KENNETH WILLIAM
IPC: G21C17/04
Filed: 1958-12-18
Abstract: 888,660. Valves. PLESSEY CO. Ltd. March 17, 1960 [Dec.18, 1958], No. 40953/58. Class 135. [Also in Group XL (a)] A channel selection system for use with a multi-channel fluid-flow arrangement, which system is arranged to feed at least part of the fluid flowing in any selected channel to detector means, includes a changeover device having a first state in which all the channels are interconnected into a plurality of first groups and a second state in which all the channels are interconnected to a plurality of second groups of channels, the groups being connected to associated detector means which may be common to both sets of groups or may be different. The system is applicable to monitoring the coolant of a nuclear reactor and in one arrangement, Fig. 4, the feed pipes 2 leading from the coolant channels are arranged in a square array and are connected to bores 2a in a selector valve. With the valve in the position shown the pipes 2 are connected together in columns to outlet bores 8; with the plate valve 5 displaced upwards from the position shown the pipes 2 are connected together in rows to outlet bores 11. Each bore 8 is connected to a detector and each bore 11 is connected to a detector, so that a signal in two of the detectors uniquely identifies the faulty channel. The same detectors may be used for bores 8 and 11 by providing further bores (not shown) interconnecting bores 8 and 11. The plate valve 5 may be moved by manual operation or by a power-driven actuator, and may be moved to a third position when it blocks off the inner ends of bores 2a. Removable plugs 15 allow access to each of the pipes 2 for example to clear obstructions in the pipes. In another arrangement, Fig. 5, the selector valve is cylindrical and in the position shown the inlet pipes are connected together and to outlet pipes by circumferential grooves 27; in the alternative position, the pipes are connected axially by bores 29. The valve may be operated by high-pressure air applied to inlets 21, 22. A single set of detectors may be used connected axially or circumferentially by switching means.
Patent GB-961578-A (GB)
Title: Improvements in or relating to tubal insufflation apparatus
IPC: A61B17/42
Filed: 1961-11-16
Abstract: 961,578. Gas injectors. Y. A. ERAJ. Feb. 11, 1963 [Nov. 16, 1961], No. 41054/61. Heading A5R. An apparatus for insufflating tubes or cavities within the body of a patient comprises a cannula 17 for inserting into the body, connected to cylinder 11 of pressurized gas, e.g. carbon dioxide, by flexible tubes of rubber or polythene 14, 15 and 16. The rate of flow of gas to cannula 17 is restricted by member 27 of narrow bore and controlled by clamps 28 and 29 and control 13. The gas pressure in 17 is measured by gauge 24 and this pressure may be released by manually-operated valve 25.
Patent GB-1482127-A (GB)
Title: D-gluconic delta-lactam
IPC: C12P19/00
Filed: 1974-09-24
Abstract: 1482127 D-Gluconic and D-glycoro-#-lactam MEIJI SEIKA KAISHA Ltd 24 Sept 1974 [25 Sept 1973] 41544/74 Heading C2C D-Gluconic 8-lactam is made by oxidizing nojirimycin in the presence a glucose oxidizing enzyme (e.g. a glucose oxidase or dehydrogenase) and, if desired, the former compound is catalytically oxidized to D-glucoro-#-lactam.