baber/WOPTO huggingface dataset:
Patent GB-1070390-A (GB)
Title: Improvements in or relating to heating chambers with fluid-cooled walls
IPC: F22B37/20
Filed: 1963-12-17
Abstract: 1,070,390. Tube walls for furnaces; supporting steam generators. BABCOCK & WILCOX CO. Dec. 17, 1963 [Dec. 20, 1962], No. 49830/63. Headings F4A and F4B. A heating chamber comprises vertical wall sections supported at different levels and upwardly extending wall cooling tubes connected by resilient conducting means permitting relative vertical movement due to thermal expansion. In a vapour generating unit, Fig. 1 (drawings not shown), comprising a vertical furnace chamber of substantially rectangular cross-section, fired by a number of independently operable cyclone furnaces, a horizontal gas pass (16) containing superheater and reheater tube banks (26) and a vertical gas pass (21), the furnace chamber, in which the steam temperature is controlled by recirculation gases, is defined by walls (11), (12), (13) formed by a plurality of vertically extending parallel cooling fluid tubes (14) with the interspace between them closed by metal webs. The walls which are divided into upper, intermediate and lower sections connected by resilient cooling fluid conducting means (38A), (38B) to accommodate expansion, are supported by a rigid structural steel support system comprising vertical columns (33), horizontal top beams (34) and beam systems (36). The upper and intermediate sections are top supported and the lower sections including the furnaces are bottom supported by beams (37). The intermediate sections are supported from sheer girders (41), Fig. 3, of beam systems (36) which extend on all four sides of the furnace, by rods (51) and plates (45), attached to the girders (41) and to channel sections (43) welded to the tubes (14), in a manner which permits adjustment to allow for horizontal expansion of the wall and deflection of the girder (41). Both connecting means in each wall are at the same level and comprise a multiplicity of horizontally extending return bend loops (56), Fig. 5, in each tube (14), and enclosed in a gas-tight casing (57) covered by insulating material (58). Spaces near the inner ends of the loops are packed with high temperature insulating wool (60) which is held in position between pairs of slidably engaging plates attached to the tubes and shielded from direct radiation by other plates (63). In another embodiment, Fig. 2, the loops are placed within entry ducts (27a) for recirculation gases and are shielded from radiation by tubes of the lower wall section forming vertical loops in sliding connection with the tubes of the upper section.
Patent GB-1273604-A (GB)
Title: Improvements in or relating to the anchoring of attachment members in walls
Inventor: HARKE ALFONS
IPC: F16B13/14
Filed: 1969-10-10
Abstract: 1,273,604. Securing wall facings. A. HARKE. 10 Oct., 1969 [12 Oct., 1968], No. 49845/69. Heading E1W. [Also in Division F2]  A facing 21 is secured to a wall 22 by a pin 20 or 33 having an axial duct 25 or 33 terminating in radial apertures 26, the pin being secured to the facing by adhesive forced through the duct and apertures into the space between the pin and the facing. Grooves 29 may be cut in the walls of the bore through the facing, and washers 28 provided in grooves in the pin shank to aid adhesion. The adhesive may penetrate a porous facing. A screw may be screwed into the outer end of the duct to apply pressure to the adhesive, and the screw may be used to carry a cover for the pin (Figure 2, not shown). The pin may be anchored in the hole in the wall by adhesive forced through ducts in the pin (Figure 1) or by a sleeve end expanded by a cone (Figure 2). The adhesive may be cement or an epoxy resin.
Patent GB-1337343-A (GB)
Title: Electric motor voltage dependent commutators
IPC: H02K11/028
Filed: 1971-10-27
Abstract: 1337343 Making commutators for electric motors C CONRADTY 27 Oct 1971 [12 Nov 1970] 49888/71 Heading B3A [Also in Division H2] To suppress radio and television interference, the segments 2 of an electric motor voltage dependent commutator are applied in an electrically conductive manner to an either discoidal, as shown, or cylindrical, Figs. 3 and 4, voltage dependent resistor 1. Several manufacturing examples are described, wherein the segments may be a metallic coating sprayed on to the resistor, reinforced by plating and subsequently polished; or to such a coated resistor are bonded or soldered stamped Cu segments; or instead of the foregoing separate segments the latter are applied to the resistor while still interconnected by a central web which is subsequently stamped or drilled out; or the segments may be coated with a conductive adhesive and pressed on to an uncoated resistor. Connections to rotor coils may be made via solder lugs 5, and the invention is applicable to F.H.P., or instrument, motors.
Patent GB-1092805-A (GB)
Title: Improvements relating to devices consisting mainly of oxidic dielectric material
IPC: H01C7/10
Filed: 1964-12-10
Abstract: 1,092,805. Semi-conductor devices; barrier layer capacitors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 10, 1964 [Dec. 13, 1963], No. 50298/64. Headings H1K and H1M. In the manufacture of barrier layer capacitors, thermistors, varistors arid rectifiers a sintered body consisting mainly of alkaline earth titanate(s) rendered semi-conductive with the aid of an additive, is superficially oxidized in the presence of manganese or a manganese compound to produce an insulating barrier layer underlying an electrode or an area to which an electrode is to be applied. Suitable additives are the oxides of rare earth metals, niobium, bismuth and antimony. In a typical example a mixture of titanium dioxide and barium and strontium carbonates is prefired and again fired after mixing with lanthanum oxide first in air and then in a reducing mixture of nitrogen and hydrogen. Strips of the material are then thrice immersed in a paste including a manganese containing enamel and particles of silver and dried in air. After subdivision individual units are heated in air to consolidate the electrodes and form an underlying insulating layer. In an alternative method the surface oxidation is effected before the electrodes are applied. In this event the electrode paste does not contain manganese this having been applied prior to oxidation by immersion in an aqueous solution of manganese nitrate or by vapour deposition of the metal. In all cases the leakage voltage may be further improved without serious reduction of capacitance by including in the electrode lanthanum, niobium, tungsten or molybdenum in elemental or compound form.
Patent GB-1220028-A (GB)
Title: Improvements in or relating to slide feeding and handling apparatus
Inventor: MICHNIEWICZ EDWARD JOHN
IPC: G03B23/14
Filed: 1969-10-15
Abstract: 1,220,028. Slide projectors. ARGUS, Inc. Oct.15, 1969, No.50651/69. Heading G2A. In an automatic stack-loading slide projector, slides 8 of varying thickness are advanced from the bottom of a vertical stack 11 by a reciprocating feeding member 29, each slide falling from support ledge 26a into a guide track 12 leading to horizontal projection station 7, the next slide above the one fed by member 29 being held against movement off ledge 26a by two spring-loaded balls 51a each of radius greater than the thickest slide in the stack 11. Member 29 engages each slide by an edge 45 thinner than the thinnest slide and is reciprocated against a spring 35 by the engagement of depending surface 40 with portion 73 of a motor-driven crankarm 72. An ear 41 on member 29 positions the slide against shoulder 50 on the return stroke. The advanced slide is transported to station 7 by pin 62 on a spring-loaded arm 60 whose flange 66 engages pin 73 on crank-arm 72. The slide is displaced from station 7 to stacking chute 19 by the edge-wise pressure of the next slide on track 12. The final slide in the stack is displaced from station 7 by an extension 100c of a pusher arm 100 pivoting at pin 63 on transport arm 60. The automatic slide feeding cycle may be disabled by manually operable stop member 80 engaging crank-arm 72.
Patent GB-1172815-A (GB)
Title: Improvements in or relating to N-Vinyl Lactam Monomers and Polymers
Inventor: MERIJAN ASHOT
IPC: C09D177/00
Filed: 1966-11-14
Abstract: 1,172,815. N-vinyl lactam monomers. GAF CORP. 14 Nov., 1966 [19 Nov., 1965], No. 50963/66. Heading C2C. [Also in Divisions C3 and C5] N-vinyl lactams having from 4 to 6 carbon atoms inclusive in the ring and having an alkyl or halogen substituted alkyl group containing 6-42 carbon atoms in the 3-position are prepared by (i) reacting a lactone of the formula wherein R and R<SP>1</SP> are hydrogen, ethyl or methyl and m is 1, 2 or 3 with a C 6-42  α-olefin in the presence of a tertiary-alkyl organic peroxide as catalyst to form the corresponding 3-alkyl lactone which is then ammoniated to form the corresponding lactam, and (ii) reacting the lactam thus obtained with 0À04 moles of potassium tertiary butoxide (per mole of lactam) in the presence of a liquid aromatic hydrocarbon as inert solvent to a temperature of 145-155 C. under a nitrogen pressure of 70 p.s.i.g. to yield the potassium salt, reacting said potassium salt with acetylene under a pressure of 200 p.s.i.g. for six hours, increasing the temperature to 160 C. and containing the reaction until about 1 mole. of acetylene has reacted, and cooling and recovering the N-vinyl- 3-alkyl lactam. The lactams may subsequently be homopolymerized or copolymerized with other vinyl monomers (see Division C3). Specific examples describe the production of N-vinyl-3- octyl pyrrolidone, N-vinyl-3-hexyl pyrrolidone, N-vinyl-3-dodecyl piperidone, N-vinyl-3-decyl caprolactam and N-vinyl-3-hexadecyl pyrrolidone and the corresponding intermediate compounds.
Patent GB-1089300-A (GB)
Title: Electrical apparatus for measuring the rotational speed of engines
Inventor: PETERS HUGH
IPC: G01P3/48
Filed: 1963-12-24
Abstract: 1,089,300. Determining rotational speed of compression ignition engines electrically. CRYPTON EQUIPMENT Ltd. and H. PETERS. Dec. 16, 1964 [Dec. 24, 1963], No. 50970/63. Heading G1N. The speed of a compression ignition engine or other internal combustion engine is measured by sensing the vibrations or pressure pulses in a fuel injection line, which correspond to the speed of rotation, by means of a mechanical/electrical transducer (e. g. lead zirconate accelerometer transducer) clamped around the line Figs. 1, 2 (not shown). A pulsed electrical output from the transducer is amplified, Fig. 3 (not shown), triggers a normally non-conductive transistor switch and square voltage pulses of constant amplitude and duration therefrom are summed by an integrating circuit and registered on a meter calibrated to indicate engine speed. A sensitivity control is provided on the amplifier to exclude extraneous pulses. The pulsed output from the transistor switch may also be applied to a silicon controlled rectifier Fig. 4 (not shown) which produces a steep positive pulse, which is in turn used to produce stroboscopic light pulses for injection timing purposes. In another embodiment Fig. 5 the pulses from the transistor switch T5 instead of being applied to the integrating circuit and meter direct, are differentiated, amplified and inverted in order to trigger a monostable multi-vibrator T8, T9. The current through a meter M1 which is normally cut off in the absence of an input pulse, will be proportional to the width of a square wave pulse produced by the multivibrator which in turn depends on the setting of a delay bias control R 2 1. A square waveform at the collector of T9 may be differentiated and the trailing edge pulse, may be used to phase a stroboscopic light source S. L. C. (not shown). The meter M can be calibrated in degrees of delay of the stroboscopic lamp or alternatively in degrees of advance of the input signal with respect to a predetermined datum.
Patent GB-1406262-A (GB)
Title: Cam assembly for circular knitting machines
IPC: D04B15/32
Filed: 1972-11-06
Abstract: 1406262 Knitting machines: cams WIRKMASCHINENBAU KARL-MARX-STADT VEB 6 Nov 1972 51052/72 Addition to 1398602 Heading D1C  A cam assembly includes cam carrier segments 5, (6, Fig 5 not shown) detchably secured to cylinder or dial cam support 1 (2) by a first projection 7 engaging an annular recess 3 (4) in the segment and a projection 8 engaging a hole therein. The segments are secured by a screw 13.
Patent GB-1108900-A (GB)
Title: Disposable syringe
IPC: A61M5/28
Filed: 1966-11-15
Abstract: 1,108,900. Hypodermic syringes. W. A. SHIELDS. 15 Nov., 1966 [19 Jan., 1966], No. 51060/66. Heading A5R. A disposable syringe includes a vial 6 having a filler opening 20 with a beaded mouth 15, a diaphragm 19 closing the filler opening and held to the vial by a cap 21 crimped over the beading, the diaphragm having an annular peripheral portion 16, a centre portion 19, and an intermediate annular portion 17 of less thickness than the peripheral portion, the cap 21 having inner surfaces abutting the annular portions of the diaphragm against the mouth of the vial. As shown, the cap 21 is of metal and carries a double-ended needle 25 and the vial forming the barrel of the syringe is of transparent glass and includes a rubber plunger (8) screw-connected to a plunger rod (11). The resilient diaphragm is of rubber and, when the plunger (8) is moved to expel medicament from the syringe, the centre portion 19 of the diaphragm is flexed against the needle 25 so that it is punctured. A needle cover (30) may be fitted over the cap 21.
Patent GB-1336205-A (GB)
Title: Hydrocarbon copolymers
IPC: C08F6/12
Filed: 1971-11-03
Abstract: 1336205 Recovering ethylene copolymers from solution E I DU PONT DE NEMOURS & CO 3 Nov 1971 [3 Nov 1970] 51181/71 Heading C3P Amorphous hydrocarbon copolymers of ethylene are recovered from solutions thereof in two stages by a process which comprises (a) passing the polymer solution into an intermediate pressure zone maintained at a superatmospheric pressure low enough to vaporize sufficient solvent to maintain vapour in said intermediate zone and then (b) extruding the resulting copolymerrich phase together with already vaporized solvent into a subatmospheric pressure zone at a rate below that at which copolymer fines are formed, said subatmospheric zone having a pressure and temperature which volatilizes residual solvent in the copolymer-rich phase. The solution may be derived by copolymerization of ethylene with another α-olefin and/or C 6-22  non-conjugated diene in solution, the reaction product being separated by heating under pressure into a solvent-rich phase which is recycled to the reactor and a copolymer-rich phase from which the copolymer is recovered. Preferably the pressure is reduced adiabatically in each stage. Apparatus suitable for carrying out the process of the invention is described and illustrated and in examples ethylene/propylene/ hexadiene-1,4-copolymers are separated from solutions in n-hexane.
Patent GB-1224516-A (GB)
Title: Shoe with fit adjustment means
Inventor: FINN JOHN JOSEPH
IPC: A43B3/30
Filed: 1968-10-31
Abstract: 1,224,516. Boots &c. J. J. FINN. 31 Oct., 1968, No. 51587/68. Heading A3B. A device for insertion in a shoe to prevent the wearer's foot 9 from rising above the insole of the shoe during walking consists of a valve-vented, closed, expandable bellows 11 which extends from the back of the counter portion 7 of the upper 3 and which has a foot engaging member on its forward end. The bellows 11 is inflated by a tube 15. In a first embodiment (Fig. 1) the foot engaging member consists of a scoop-like member 13. In a modification (Fig. 3) the foot engaging member 21 is provided with fingers 23 which run in slots in tracks 25 to guide the forward-rearward movement of the member 21. Suitable materials for the bellows 11 are plastics, e.g. polyethylene, semi-rigid rubber or thin tough metals.
Patent GB-1284424-A (GB)
Title: Improvements in embellishers
IPC: F16B2/22
Filed: 1969-10-21
Abstract: 1284424 Wire baskets; ornamenting furniture COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT 21 Oct 1969 [23 Oct 1968] 51617/69 Headings A4G and A4U [Also in Divisions B6 and E2] An embellisher for openwork articles made of metal wires comprises as shown in Fig.2 a C- section strip 5 and at least two resilient fixing members 6 having a cross-section in the form of the capital letter omega whose generally cylindrical body when mounted partially embraces the frame 3 of the article and the lips of which are slidably but firmly retained in the hollow of the C-section strip. The embellisher may be mounted on gridlike shelves for refrigerators, arms of pieces of display furniture, baskets for foodstuffs. The C- section strip may be metal or plastics. Members 6 may be longer than the space between two consecutive wires of the openwork article, in which case they are formed with longitudinally aligned slots to receive the wires in the ends of their cylindrical parts. The orientation of the embellisher depends on the position of the slots. Each member may have a plurality of such slots each corresponding to a predetermined orientation of the embellisher.
Patent GB-1331794-A (GB)
Title: Method and apparatus for fabricating semiconductor devices
IPC: H01L21/00
Filed: 1970-10-30
Abstract: 1331794 Brazing INTERNATIONAL BUSINESS MACHINES CORP 30 Oct 1970 [12 Nov 1969] 51647/70 Heading B3R [Also in Division H1] In joining a semi-conductor chip to a substrate, the chip and substrate are aligned and brought into contact with fusible metal therebetween, the chip and/or substrate are heated to form a eutectic between the metal and the chip and relative oscillatory movement is between the chip and substrate over an arc of a circle whose axis is perpendicular to the plane of contact between the chip and substrate and outside the area of contact. An apparatus for carrying out the process comprises a first location system comprising an upstanding rear wall 16 secured to a horizontal platform 17 on which a platform 20 is movable in grooves 20C, 20D, a further platform 19 being movable in grooves 19C, 19D, in platform 20 at right angles to grooves 20C, 20D. On the platform 19 is eccentrically pivotally mounted on pin 66 a substrate receiving means 18 and a microscope is mounted on the rear wall 16. A second location system includes an upstanding wall 31 from which extends a horizontal platform 32 resting on a base 33. The platform 32 is movable along slides 32A and platform 17 is movable along slides 17A at right angles to slides 32A, a handle 34A being pivotally connected to the base 33 by a ball joint 33, to the platform 32 by a ball joint 36 and slot connection and to platform 17 by a ball joint 37 and slot connection) to position the first system 15 relatively to the second system and to the base. A chip loader 40 includes a handle 41 and platform 42 pivotally mounted to move a chip 11 beneath a chip pickup means 45 including a glass tube 46, a necked portion 48, an aperture in the lower end and a connection 46A to a vacuum supply, the means 45 being carried on a beam 60 carried on the wall 31 and urged upwardly by a spring 63 and movable downwardly by a cam 64 rotatable by a handle 66. A chip is supplied by loader 40 to the vacuum pick-up 45, a substrate of gold plated molybdenum is located in the means 18, the chip and substrate are correctly positioned by movement of the various platforms and the chip is lowered into contact with the substrate, the interface of the chip and substrate are heated to 400‹ C. to permit a gold-silicon eutectic bond to form while the means 18 is rotated by means of a handle 67. Bonding may be carried out in a reducing atmosphere of forming gas (5% H 2 , 95% N 2 ) or in nitrogen. The substrate receiving means 18 is heated by wires 65.
Patent GB-1282231-A (GB)
Title: Improvements relating to furnaces
IPC: C21D1/767
Filed: 1970-10-30
Abstract: 1282231 Gas-fired furnaces KOPPERSWISTRA OFENBAU GmbH 30 Oct 1970 [3 March 1970] 51741/70 Heading F4B A furnace is heated by burners 6, 7 in the walls arranged in groups, the burners 6 of one group being arranged to form an eddy of hot gas filling the furnace chamber and whirling in one direction, while the burners 7 of another group produce an eddy whirling in the opposite direction, and the burner groups are operated in turn so as to repeatedly change the direction of flow of the gases in the furnace. The heating effect of the burners is controlled by switching burners on and off, and the group of burners are controlled by a time switch, so that the unidirectional eddy effect and the change of eddy direction is preserved when burners are switched on or off by the heat control. All the burners may be operated together if required.
Patent GB-1097679-A (GB)
Title: Process for preparing fluorine and oxygen-containing organic compounds, and productsobtainable by the process
IPC: C07C59/135
Filed: 1964-12-30
Abstract: The invention comprises polyoxy perfluoro methylenes having the repeating unit -CF2O- and their production by reacting tetrafluoroethylene with oxygen in the presence of U.V. radiation, the time of irradiation being 8-60 minutes for every 25 mW of luminous energy at 2537A<\>r per sq. cm. of radiating surface, or proportionately for other powers, wavelengths and areas.  Treatment of the liquid part of the product with a base enables the product to be separated into neutral and acidic fractions, the latter having terminal -CF2COOH groups derived from initial terminal -CF2COF groups. Solid products may also be obtained.ALSO:Tetrafluoroethylene oxide is obtained by reacting C2F4 with oxygen in the presence of U.V. radiation, the time of irradiation being 8-60 minutes for every 25 mW. of luminous energy at 2537 <\>rA per sq. cm. of radiating surface, or proportionately for other powers, wavelengths and areas. Polyoxy perfluoromethylenes are also obtained (see Division C3).
Patent GB-1527058-A (GB)
Title: Egr control servosystem for an internal combustion engine
IPC: F02M1/00
Filed: 1976-12-17
Abstract: 1527058 Automatic control of I.C. engines FORD MOTOR CO Ltd 17 Dec 1976 [19 Jan 1976] 52891/76 Heading G3N [Also in Division F1] A control system for the operation of an E.G.R. valve in an I.C. engine consists of a vacuum motor which is supplied with alternating vacuum and atmospheric pressure into chamber 26 by means of solenoid valve 38 which is supplied with a pulsating current output from control circuit 120 so that an average vacuum is provided in chamber 26 defined by the mark/space ratio of the current. The movements of the throttle valve 15 and E.G.R. valve 19 are signalled by potentiometers 62, 16 respectively and the voltage tapped off compared in a comparator (74) Fig. 3 (not shown) which supplies solenoid 38. Potentiometer 62 has a thermistor 66 in its supply lead so that the tapped voltage varies with engine temperature. In the embodiment described a further comparator supplies a solenoid actuator which retards the ignition timing when full power is required. At the same time the solenoid 38 is de-energized so that the E.G.R. valve is closed. The mounting of a carburetter on top of an E.G.R. valve spacer is described, Fig. 2 (not shown) and the various electrical components and operating linkages are shown.