baber/WOPTO huggingface dataset:
Patent GB-1396547-A (GB)
Title: Rotary printing machines for variable formats
IPC: B41F17/02
Filed: 1972-11-03
Abstract: 1396547 Registering webs AUTOMATIC DRUCKMASCHINENFABRIK DR W HINNIGER UND SOHNE 3 Nov 1972 [5 Nov 1971] 50847/72 Heading B8R [Also in Division B6] A printing machine comprising a main web drawing device to feed predetermined lengths of a web 1 to printing presses 12, 13 through a synchronizing carriage 8 which feeds the web through the presses at the correct speed and position to match the speed of the presses while the feed device is stationary, and presses 12, 13 which have plate cylinders 14, 14<SP>1</SP> with plates 17, 17<SP>1</SP> over part of their periphery in which the leading and trailing edges of each impression have marks 35, 36 (see Fig. 3), put on them during printing which are sensed by a photoelectric device 29 which sends a signal to the main web drawing device to adjust the length delivered to the press such that the marks are kept coincident on line 28 during operation of the machine. The line 28 may be used as the cutting line for a perforating unit 26. The marks may be formed on the printing plate 17, 17<SP>1</SP> or on adjustable rings mounted on one end of the plate cylinders 14, 14<SP>1</SP>, Figs. 4, 5 (not shown). The machine can be reset for various format lengths by using the adjustment device before starting a printing run, the fine adjustment then taking place automatically.
Patent GB-1081170-A (GB)
Title: Stabilized silicone liquids
Inventor: BUEHLER FRITZ ALBERT
IPC: C08K5/098
Filed: 1964-12-15
Abstract: A high temperature-stabilized lubricating composition comprises a liquid polysiloxane of the average general formula <FORM:1081170/C4-C5/1> wherein each R is an organic radical, preferably a monovalent hydrocarbon or halohydrocarbon radical, and less than 50% by wt. of a mixture of (a) an iron slat of an organic acid and (b) an oxide, hydroxide or carbonate of a metal from Group IIa of the Mendeleeff Periodic Table.  Preferably (a) and (b) are used respectively in amounts of from 0.001 to 10% and 0.0001 to 10% by wt. of the siloxane.  Salts (a) specified are the acetate, propionate, butyrate, isobutyrate, 2-ethylhexanoate, benzoate, naphthenate, toluate, cyclohexanoate and oxalate.  In a typical Example (1) 0.25% (wt.) iron octoate and 1% CaO were added to a liquid methylphenyl-polysiloxane. Detergents, rust-inhibitors, lubricity improvers, anti-wear and other agents may be added. Other lubricants, e.g. siloxane copolymers and organotin compounds may also be added.  The compositions may also be used as heat-transfer fluids, hydraulic fluids or as blending stocks for petroleum and synthetic oils and greases.ALSO:A high temperature-stabilized polysiloxane liquid of the average general formula <FORM:1081170/C3/1> wherein each R is an organic radical, preferably a monovalent hydrocarbon radical with or without halogen substituents, contains less than 50% by wt. of a mixture of (a) an iron salt of an organic acid and (b) an oxide, hydroxide or carbonate of a metal from Group 2A of the Mendeleeff Periodic Table.  The preferred siloxanes contain Si-bonded alkyl, or alkyl and aryl or alkyl and halo-aryl radicals.  Salts (a) specified are the acetate, propionate, butyrate, isobutyrate, 2-ethylhexanoate, benzoate, naphthenate, toluate, cyclohexanoate and oxalate. Salt (a) and compound (b) are generally used in amounts of from 0.001 to 10% and 0.0001 to 10% by wt. of the siloxane respectively. Detergents, rust-inhibitors, lubricity improvers, anti-wear and other agents may be added. Other lubricants, e.g. siloxane copolymers and organotin compounds, amy also be added.  In a typical Example (1) 0.25% (wt.) iron octoate and 1% CaO were added to a methylphenylpolysiloxane having a viscosity of 80 cs. at 38 DEG C. (100 DEG  F).  Uses: as heat-transfer fluids, dielectric media, lubricants, hydraulic fluids or as blending stocks for petroleum and synthetic oils and greases.
Patent GB-1083969-A (GB)
Title: A process for the production of engine fuels
Inventor: DEUTLOFF ERWIN
IPC: C10G59/02
Filed: 1965-12-01
Abstract: A process for the production of engine fuels or engine fuel components by the reformation of hydrocarbon fractions having a lower boiling-point of between 70 DEG  and 120 DEG  C. and an upper boiling-point of 180 DEG  C. from which the fractions of lower boiling-point have previously been separated consists in mixing with the reformed hydrocarbon fractions the low-boiling fractions previously separated from the starting product, and in isomerizing the mixture obtained at a temperature of between 380 DEG  and 450 DEG C., a pressure of between 10 and 70 atmospheres, and a catalyst loading of 4 to 10 litres of starting product per litre of catalyst per hour.  The reforming and isomerizing catalysts may be platinum on alumina.
Patent GB-1191385-A (GB)
Title: Benzothioxanthene Derivatives and their Preparation
Inventor: ENGELHARDT EDWARD LOUIS
IPC: A61K31/16
Filed: 1968-04-24
Abstract: 1,191,385. Hydroxybenzothioxanhene derivatives. MERCK & CO. Inc. 24 April, 1968 [27 April, 1967], No. 51489/69. Divided out of 1,191,384. Heading C2C. Novel hydroxybenzothioxanthene derivatives of the general formula wherein B is a benzene ring fused in the [a] or [c] position, X is a bromine or chlorine atom and each R is a hydrogen atom or a C 1-6  alkyl group, are prepared by reaction of a benzothioxanthenone derivative of the general formula with a Grignard reagent of the general formula hal.Mg.CH 2 CH 2 CH 2 .N(R) 2 , wherein hal is a halogen atom, and hydrolysis of the resulting Grignard adduct. Benzothioxanthenone derivatives of the second general formula above are prepared by heating a naphthylthiobenzoic acid derivative of the general formula in the presence of a dehydrating agent of the polyphosphoric acid type. 5 - Chloro - 2 - (1 - or 2 - naphthylthio) benzoic acid is prepared by treatment of 5-chloroanthranilic acid with nitrous acid, followed by potassium iodide, and reaction of the resulting 2-iodo-5- chlorobenzoic acid with α- or #-naphthalenethiol, respectively.
Patent GB-1133956-A (GB)
Title: Apparatus for moulding rubber articles
IPC: B29C33/02
Filed: 1965-12-06
Abstract: 1,133,956. Compression moulding rubber articles. MERCO TYRE & RUBBER CO. PTY. Ltd., and G. EASTWOOD. 6 Dec., 1965 [23 Dec., 1964], No. 51678/65. Heading B5A. The entrapment of air in single or multiple cavity compression moulding of rubber articles is avoided by hermetically sealing a space between opposed die elements 3, 4 from which air is evacuated and a lower air pressure maintained, via one or more connections 12 to a vacuum pump, before the die elements 3, 4 are placed in final closed relationship with parting faces 7, 8 in contact. The hermetic seal is obtained by the engagement of one die in piston fashion within a skirt 9 formed on the other die and which piston and skirt may be of circular, elliptical or rectangular section ; one or more sealing rings 11 are preferably provided on the piston or skirt 9. A vacuum of 2 to 5 lb./sq. inch absolute is considered adequate. Abrupt closure of the moulds under vacuum may be resisted by external coil springs 13 or springs or compressible rubber plugs within the sealed space, e.g. in spaces 16. In an alternative embodiment (Fig. 2, not shown) the lower die element (4a) is housed within a cup-like member (14) which engages within the skirt (9A). Elimination of entrapped air is facilitated by repeated opening and closure of the die elements.
Patent GB-1139628-A (GB)
Title: Clocked delay type flip flop
Inventor: SEELBACH WALTER CHRISTIAN
IPC: H03K3/037
Filed: 1967-11-14
Abstract: 1,139,628. Transistor bistable circuits. MOTOROLA, Inc. 14 Nov., 1967 [16 Dec., 1966], No. 51829/67. Heading H3T. A bistable circuit comprises a master bistable circuit 9 with its outputs 35, 37 connected to a slave bistable circuit 7 and a clock circuit 6 which locks the master and enables the slave when applied clock signals are at one logical level, and which locks the slave and enables the master when the clock signals are at another logical level. Assume initially that the clock pulse C is at a low level, then transistor 82 is overidden by transistor 80 to enable transistor 74. With a low level input at AN, transistor 70 overides transistor 74 switching off transistor 56 to give a low level output at QM and switching on transister 58 to give a high level output at #QM. When clock C goes to its high level, transistor 88 switches on switching on transistor 82 to lock the master, and switching on transistor 34 to enable the slave. The high QM and low #QM inputs now set the slave to Q high and Q low. Reversion of clock C to its low level locks the slave in this state and enables the master to respond again to the A, R, or S inputs. A high A switches the master to QM high and #QM low. An input at S or R will set or reset both master and slave irrespective of the clock level. For example a high reset R will switch on transistor 28 slightly before transistor 34 thus resetting the slave. The various transistors are biased from a circuit 8 which includes temperature stabilizing diodes 96, 98.
Patent GB-1400427-A (GB)
Title: Video signal processing apparatus
IPC: H04N5/59
Filed: 1971-11-08
Abstract: 1400427 Television RCA CORPORATION 2 Nov 1972 [8 Nov 1971] 51851/71 Heading H4F A luminance signal amplifier having an input 1 and output 11 includes a variable brightness control 42 which controls the D.C. current flowing through transistor 80 and hence the D.C. voltage generated across resistor 72 and so the brightness of the displayed output signal. Contrast is controlled via resistor 38 and transistor 66. Blanking signals are applied to terminal 10 to turn transistors 90, 98 on and hence turn transistor 64 off. A resistor 112 is provided so that operation of the contrast control 38 does not affect the brightness of the displayed signal. If the beam current of the reproducing cathoderay tube increases beyond a desired limit transistor 102 is cut off by beam current serving circuitry and transistor 106 cut on so as to reduce the current flow through resistor 72 and so limit the reproduced brightness.
Patent GB-1095706-A (GB)
Title: Improvements in and relating to the production ofcaprolactam polymer for use in filaments
IPC: D01F6/60
Filed: 1964-12-21
Abstract: A process for conditioning polycaprolactam to be melt-spun into filaments of homogeneous melt-viscosity comprises drying water-washed polymer granules having a formic acid relative viscosity of 40 to 80 with a standard deviation not above 0.6 measured at 10% concentration in 90% formic acid at 25 DEG  C., and a water-extractible content not above 5% by weight, to an average water content in the range 0.035 to 0.115% by wt. and then conditioning the dried granules by continuous contact for at least 2 days at a constant temperature between 30 DEG and 120 DEG  C. with non-reactive gas in which the partial pressure of water vapour is between 0.001 and 10 mm. Hg until the standard deviation of water content of the dried granules is not above 0.003% by wt. of the granules.  The water content W to which the polymer is brought before melt spinning is preferably related to the temperature T DEG  absolute at which the polymer is melt spun by the equations <FORM:1095706/C3/1> where <FORM:1095706/C3/2> and y is the end group concentration given by V = - 285.209+2164.33 y + 11.7188/y.  V is the formic acid relative viscosity and a is the concentration of any monobasic acid viscosity stabilizer and C that of amide links in the polymer, both in g equivalents per kilogram.
Patent GB-1056910-A (GB)
Title: A method of making contact blades, having a precious metal top layer
IPC: H01H1/02
Filed: 1965-12-09
Abstract: 1,056,910. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. Dec. 9, 1965 [Dec. 14, 1964], No. 52292/65. Addition to 1,019,060. Heading H2B. [Also in Division B3] In a method of making a sealed reed contact unit as claimed in Specification 1,019,060 an' intermediate layer of copper is deposited between the palladium contact surface and the basic material of the reed. The copper acts as a gettering material when the reeds are sealed in an enclosure and covers a larger area than the palladium. Should any oxygen enter the enclosure, its presence will be revealed by discoloration of the copper.
Patent GB-1170267-A (GB)
Title: Method of Improving the Flavour of Malt Beverages.
IPC: A23L7/20
Filed: 1966-11-23
Abstract: 1,170,267. Containers. BONNIERFORETAGEN A.B. 23 Nov., 1966 [29 Nov., 1965], No. 52528/66. Heading B8D. [Also in Division C6] A closed container for the storage and maturation of malt beverages such as beer is made of polyethylene, polypropylene or polybutylene. Alternatively, the polyalkylene may be provided as an internal lining within a barrel, can or bottle, or as granules or particles which may be porous. Examples and comparative experiments are directed to the storage of a malt beverage in blown bottles made of polypropylene, polyvinyl chloride and polycarbonate, in a container provided with an internal film of lowdensity polyethylene, and in containers containing granules of high- and low-density polyethylene and polypropylene.
Patent GB-1135500-A (GB)
Title: Improvements relating to distributors for internal combustion engines
IPC: F02D41/34
Filed: 1967-11-24
Abstract: 1,135,500. Mechanical interrupters; rotary distributers. ROBERT BOSCH G.m.b.H. 24 Nov., 1967 [26 Nov., 1966], No. 53486/67. Heading H1N. A distributer for a multicylinder internalcombustion engine operating with fuel injection and spark ignition, contains a rotary distributer shaft 5, a contact-breaker cam 7 connected thereto and co-operating with a contact-breaker lever 8, a switch cam 20 also connected to shaft 5, and a pivotable spring- biased switch lever 21 (22) actuated by switch cam 20 and co-operating with a fixed contact 27 to form a switch of a signal generator for the fuel injection system, the switch lever 21 (22) and its fixed contact 27 being mounted on a carrier-plate 30 which extends transversely to the distributer shaft 5 and which can be pulled out of the distributer housing 1 in a direction radially of the distributer shaft 5 like a drawer. Carrier-plate 30 has tongues 31 by which it is fastened to fitting 32 carrying a moulded plastics socket 33 with plug prongs 34 bent at rightangles to form soldering tags, carrier-plate 30 also having a slot 40 for centring the plate 30 on the bearing sleeve 4 of shaft 5 and fitting 32 being fastened to the distributer housing 1 by screws. A centrifugal adjuster 6 for contact-breaker cam 7 is fitted on distributer shaft 5 and co-operates with contactbreaker lever 8 mounted on a plate 9. On shaft 5 above cam 7 is a distributer arm 15 supplying energy by way of resistor suppressor 16 to points 14 in distributer cap 11 held on by spring clip 12.
Patent GB-1272977-A (GB)
Title: Method of manufacturing boxes
Inventor: ELIAS HARRY
IPC: B65D5/32
Filed: 1969-11-03
Abstract: 1,272,977. Cartons. LONDON FANCY BOX CO. Ltd. 6 Oct., 1970 [3 Nov., 1969], No. 53759/69. Heading B8P. A box of the "flip-top" type that can be made semi-automatically is, in one form, made from a single blank, Fig. 7, slit at 34 to form the hinge line, there being a strip of calico or paper glued to the inside to cover the slit, and the side and end flaps 28 being secured to assume a tray like form. The lower half of the blank is similarly folded. An outer decorative wrapper is applied to the box. The tray like portions are folded about the base 33 so that one portion fits within the other, slits 36 having been previously made in the flaps 28. Adhesive holds the box in the final form and the outer covering is slit along a line corresponding to a slit 35 in the lower part of the blank so that the lid can hinge about the slit 34. In a second embodiment, the box is formed from two identical blanks each forming a tray like portion. The slits 34, 35 may be a different distance from the adjacent end of the blank and the slits 36 can be inclined to the edges of the blank to give the usual "flip-top" shape. In a further embodiment, Fig. 6, two lids are formed.
Patent GB-1343358-A (GB)
Title: Homopolar electrical machine wherein the space between the  rotor and stator is filled with liquid metal
IPC: H02K31/04
Filed: 1971-11-19
Abstract: 1343358 Homopolar machine ANVAR, AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 19 Nov 1971 [20 Nov 1970] 53953/71 Heading H2A In a homopolar generator or motor having a plurality of rotor discs 1 separated by stator partitions 4 and in which liquid metal fills the space between the stator and rotor, insulation (shown by double lines) isolating the facing radial surfaces of the rotor discs and stator partitions so as to form a current path through the machine outer gap 9-10, to the stator and thence radially inwards, along a stator partition 4 and across an inner gap 12-7, to the hub 8 of the next rotor disc, cumulative build-up of pressure in the liquid is prevented by causing the liquid on both sides (rather than on just one side) of each rotor disc to rotate. Since the annular body of liquid 15 to the right of each disc is electrically directly in parallel with the disc itself, when the machine is in use this body of liquid is forced, by the induction motor principle, to rotate at the same speed as the disc so as to develop across it a back e.m.f. which equals the rotor e.m.f., the centrifugal forces causing a high pressure to appear at the periphery of the body of liquid. For similar reasons the body of liquid 16 to the left of each disc, being directly in parallel with a stator partition 4 across which there is no voltage, would normally be constrained to remain stationary so that no back e.m.f. appeared across it. According to the invention, however, this left hand body of liquid 16 is also caused to rotate so as to build up a pressure which balances that on the right hand side. The net e.m.f. across the left hand body of liquid 16 must still be zero, and to allow for this the outer portion 16b only of the liquid 16 is compelled to rotate in the same direction as the adjacent rotor disc 1, the inner portion 16a then necessarily rotating in the opposite direction so that the e.m.f.'s across the inner and outer portions mutually cancel. The outer liquid portion 16b is caused to rotate with the disc 1 either by using fan blades fitted to the disc, or, using the induction motor principle again, by exposing at least the outer and inner peripheries of the portion 16b to a conductive annulus rotating with the rotor, e.g. by fixing a conductive annulus to the disc 1 over its insulation, or by removing an annulus of insulation from the disc itself, either over the whole of the surface portion adjacent the portion 16b or just over a thin strip at the interface 17 between liquid portions 16b and 16a. The liquid is mercury or a mercury amalgam.
Patent GB-1213281-A (GB)
Title: Well control
Inventor: JONES MARVIN RICHARD
IPC: E21B21/08
Filed: 1967-11-29
Abstract: 1,213,281. Wells. CAMERON IRON WORKS Ltd. 29 Nov., 1967 [30 Dec., 1966 (2); 7 June, 1967], No. 54399/67. Heading E1F. A choke is positioned at the outlet for the drilling fluid of a well and has means to control it so as to make the difference (PD) between the bottom hole pressure of the drilling fluid, and the formation fluid pressure approach a predetermined value (P'D). When a "kick" is encountered in the well the blowout preventer is closed and the well static pressure (Ps) measured at the surface. On re-starting the pumps the inlet pressure P i  of the fluid flowing into the well equals P S +P L +P D , where P L  is the loss of pressure due to the fluid circulating to the bottom of the drill string. Hence:- P D -P' D =P d  (say) = P i -P L -(P S +P D ) When P d  is not zero the choke alters the rate at which the drilling fluid leaves the well until P d  returns to zero. In one example (Figs. 9 and 10 not shown) a signal representing the inlet pressure is applied to one side of the piston 410 controlling the choke and a signal representing P L +P S +P' D  is applied to the other side of the piston when it is desired to circulate heavier mud to the bottom of the well. When it is desired to circulate heavier mud to the bottom of the well signals representing the outlet pressure and the static pressure are instead applied to the two sides respectively so as to maintain the outlet pressure constant. The inlet and outlet pressures are automatically sensed and fed into a pneumatic controller for the choke. The product of the mud density times the square of the circulation (pV<SP>2</SP> say) is continuously sensed by an arm pivoted in the inlet conduit of the well and fed into the controller which produces a signal representing P L  (which equals KDpV<SP>2</SP> where D is the length of the well and K is a constant). Values for P s , D and K are manually fed into the controller which also computes the increase in mud density (which equals P s /.052D) required to control the increase in formation pressure. In another embodiment a signal representing Pi-P L -P S -P' D  is fed to one side of the piston of the choke and a signal representing the outlet pressure to the other side. The former signal may incorporate a feed-back to produce damping. The choke may be controlled pneumatically from the controller or hydraulically via a hydraulic relay.  The choke described has a flow restricting member 33 movable by a piston 410 towards and away from valve seat formed by a ring 404. Sleeve 419 of the member 33 and ring 404 are reversible and have their inter engaging corners lined with tungsten carbide.
Patent GB-1330528-A (GB)
Title: Mounting device for semiconductor wafers for use in the manu facture of semiconductor devices
IPC: H01L25/11
Filed: 1970-11-19
Abstract: 1330528 Semi-conductor devices SEMIKRON GES FUR GLEICHRICHTERBAU UND ELEKTRONIK mbH 19 Nov 1970 [29 Nov 1969] 54935/70 Heading H1K A mounting device 1c, comprising a plate of plastics material with a plurality of apertures 2c for receiving semi-conductor wafers 3c, is used to hold the wafers while they are contacted by clamp-type mountings of a conductor arrangement 11, 13, 17 in a soldering operation, the device being included in the final arrangement encapsulation. The conductors are formed from strip material, and the clamp-type mountings are formed by tongues 12, 16 which are bent out of the plane of the strip as disclosed in Specifications 1,298,766 and 1,300,334. The wafers, comprising semi-conductor diodes with metal contacts, are placed in the apertures in the plate, and the plate placed in the conductor arrangement. The wafers may be laterally surrounded by an elastic material, e.g. silicone rubber, or alternatively the apertures may be lined with similar material, to aid retention of the wafers and passivation of the wafer. The plate may be a silicone or epoxy moulding compound or a phenolic resin formed in a strip which may be severed before or after the wafers are inserted. The arrangement may form a single phase bridge rectifier.
Patent GB-456629-A (GB)
Title: Improvements in cathode ray tubes
IPC: D07B7/14
Filed: 1936-02-24
Abstract: 456,629. Cathode-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 24, 1936, No. 5563. Convention date, May 29, 1935. [Class 39 (i)] The inner side wall of a cathode-ray tube is provided with a black coating consisting of one or more metals or conductive or semiconductive inorganic compounds, which coating is applied on a conductive layer, e.g. silver already formed on the wall. The black coating may consist of (i) copper oxide applied from a suspension of copper oxide in amyl acetate to which is added a solution of nitrocellulose in amyl acetate, the binding- agent being removed after the coating is dried by heating ; (ii) silver sulphide obtained from a suspension ; (iii) a metal such as molybdenum, tungsten, nickel or silver in a black form, or (iv) molybdenum sulphide, copper sulphide, lead sulphide and nickel oxide.