baber/WOPTO huggingface dataset:
Patent GB-869145-A (GB)
Title: Modified resins
IPC: C08G63/46
Filed: 1958-02-14
Abstract: Modified alkyd resins are prepared by forming a vinyl copolymer containing carboxyl groups by copolymerizing a non-carboxylic vinyl monomer or mixture of monomers with a minor proportion of an a -, b -unsaturated carboxylic acid, and reacting this copolymer with a saturated fatty acid partial ester of a polyfunctional alcohol, either before, during or after the esterification of the partial ester with a polybasic carboxylic acid or anhydride.  The non-carboxylic vinyl monomer may be styrene, vinyl toluene, vinyl acetate, methyl or ethyl acrylate, methyl or butyl methacrylate, acrylonitrile or methacrylonitrile, and the unsaturated carboxylic acid may be acrylic or methacrylic acid.  The saturated fatty acid component of the partial ester may be the mixture obtained by saponification of naturally occurring saturated oils such as coconut or palm-kernel oil, the polyfunctional alcohol may be ethylene glycol, glycerol or pentaerythritol, and the polybasic carboxylic acid or anhydride may be phthalic, isophthalic or adipic acid or phthalic anhydride.  The modified alkyd resins may be utilized as coatings alone or when baked with butylated urea or melamine formaldehyde resins.
Patent GB-1052104-A (GB)
IPC: B01D53/94
Filed: 1964-02-05
Abstract: 1,052,104. Oxidation catalysts. ENGELHARD INDUSTRIES Inc. Feb. 5, 1964 [Feb. 7, 1963], No. 5001/64. Heading B1E. A catalyst for use in exhaust oxidation devices is prepared by applying to the surface of a chemically inert unitory body with a plurality of openings therethrough a dispersion of an active refractory metal oxide and a water-soluble platinum group compound and calcining the so treated support. The support may be wetted before treatment.
Patent GB-550045-A (GB)
Title: Improvements in or relating to electrical switches having spring-loaded contact arms
IPC: H01H19/62
Filed: 1941-04-17
Abstract: 550,045. Interrupters. SCOPHONY, Ltd., and ADAMS, A. E. April 17, 1941, No. 5004. [Class 38 (v) ] A bridge contact member 1, shown as of U- section, normally is pressed against two contact pins 9, 10 by a leaf spring 3 anchored at 5, the bent-over end resting against an eccentric cam 12 for adjustment. Projections 4 on the spring rest in slots 2 in the member 1. The circuit is broken by pressure, either between the contact pins or beyond them, shown as applied by a rotating cam 13.
Patent GB-656561-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/78
Filed: 1948-02-20
Abstract: 656,561. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Feb. 20, 1948, No. 5011. Convention date, Feb. 26, 1947. [Class 39 (i)] In a travelling-wave amplifier, the electron beam is deflected periodically in passing through a cavity resonator 6, across an opening 9 in an electrode 8, so as to provide a bunched beam for transferring energy to a helix 11. A travelling wave having a component of velocity approximately equal to, and in the same direction as that of the bunched electrons, is set up in the helix. An accelerator electrode 10 is provided between the electrode 8 and the helix 11. The helix may be of decreasing pitch, or of constant pitch, but divided into sections having increasing potentials. The helix may be outside the envelope. A magnetic focussing coil is provided.
Patent GB-1146375-A (GB)
Title: Improvements in or relating to apparatus for analogical measurement of distances by means of ultrasonic pulses
IPC: G01S7/52
Filed: 1967-02-02
Abstract: 1,146,375. Ultrasonic distance measurement. REALISATIONS ULTRASONIQUES. 2 Feb., 1967 [10 Feb., 1966], No. 5047/67. Heading H4D. In a system for measuring the separation of two points in a medium by determining the peak amplitude of a staircase waveform whose generation is initiated at the instant of emission of an ultrasonic pulse at one of the points and terminated on receipt of the echo obtained by reflection of this pulse at the other point, the measurement is made independent of variations in the ultrasonic wave propagation velocity by ensuring that all steps in the staircase waveform have the same amplitude and a duration which is inversely proportional to the propagation velocity in the medium. In the Fig. 1 embodiment, clock pulses of constant amplitude from generator 6 and shaper 5 are generated during the propagation time of an ultrasonic pulse from transducer 2 and applied via capacitor 10 to an analogue integrator comprising capacitor 14 and negative feedback amplifier 11. The peak value of the staircase voltage on capacitor 14 is converted to a distance indication at 17 and 18. The clock pulse frequency is that of oscillations maintained by an amplifier 9 whose input and output are connected to a pair of auxiliary transducers 7, 8 spaced a predetermined distance in said medium.
Patent GB-1469203-A (GB)
Title: Alkylaryl sulphonic acids
IPC: C07C309/30
Filed: 1975-02-06
Abstract: 1469203 Lubricants; additive concentrates EXXON RESEARCH & ENG CO 6 Feb 1975 [13 March 1974] 5100/75 Heading C5F A concentrate, for use in making a lubricant additive, comprises 50 to 90% (weight) of one or more alkarylsulphonic acids, a hydrocarbon diluent oil and not more than 5% of an organic compound that contains at least one ether group and boils above 100‹ C. at normal pressures. The hydrocarbon oil may be the unsulphonated residue of the alkylbenzene from which the sulphonic acid was prepared. The ether compound serves as a stabilizer, and may be an aliphatic or phenolic monoether or an ether-alcohol, e.g. a monoether of a glycol or of its dimer or polymer.
Patent GB-127311-A (GB)
Title: Improvements in and relating to Means for Applying Tape and the like to the Wings of Aeroplanes and for like Purposes.
Inventor: DUDD HUGH BRETT
IPC: B64F5/00
Filed: 1917-04-13
Abstract: 127,311. Dudd, H. B. April 13, 1917. Affixing by adhesives.-In an apparatus for applying tape and the like to aeroplane wings and for like purposes, a spool of tape e', Fig. 1, is mounted at one and of a container a, and the tape is paased through a slit c<1> in, the lid of the container and down into an adhesive composition, passing under a guide c<2> and out through the lid, through a cutter f, over rollers c<4>, c<5>, and under rollers b by which it is pressed on to the wing &c., the container being moved forwards by means of a handle d. Fig. 3 shows a simpler form, in which the tape is mounted on a removable lid and is applied to the wing &c. by hand rollers &c. A centre line or point is provided on the lid to show the centre line of the tape when being used.
Patent GB-918015-A (GB)
Title: Improvements in and relating to reflectors
IPC: G02B5/124
Filed: 1959-02-16
Abstract: 918,015. Reflection reflectors. WESTBROOKE, W. G. F. Feb. 16, 1959, No. 5245/59. Class 97 (1). A reflex reflector comprises triple reflector elements 2 on a spherical concave surface 4 distributed round the centre in three or more radiating sections with those in each section differently angularly orientated about their axes from those in adjacent sections, said elements defining a boundary with a number of straight sides which is greater than the number of sections. The elements are preferably surrounded by a ledge 1 and a raised rim 5.
Patent GB-883014-A (GB)
Title: Improvements in or relating to hydraulic remote control arrangements
IPC: F15B11/10
Filed: 1958-02-18
Abstract: 883,014. Fluid-pressure servomotor-control systems; valves. STABILIMENTI ELETTROMECCANNICI RIUNITI ANSALDO-SAN GIORGIO S.p.A. Feb. 18, 1958 [March 30, 19571, No. 5256/58. Classes 69 (2) and 135. An hydraulic system comprises an actuator piston displaceable against spring-loading by hydraulic pressure controlled by a pressure regulating valve having a spool subject in one direction to the said pressure and in the opposite direction to an adjustable spring loading. As shown in Figs. 1 and 2, a valve spool 12 controls the connection of a line 2 with an inlet line 1 and an exhaust line 3. Spool 12 is loaded by a spring 17 adjustable by screw 16 and is subject to the pressure in line 2 acting in a chamber 5. Line 2 leads to a single acting piston 21. As shown in Figs. 3, 4 and 6, an actuator 18 has a piston 21 urged to a central position by a spring 23 disposed inside the hollow piston which slides over a stationary rod 30. Spring 23 co-operates with abutments on the rod 30, and the rod has a bore 33 leading to exhaust. Lines 2<SP>1</SP>, 211 lead to a control valve V which has a spool 12 loaded by a spring 17 and subject to the pressure in a chamber 5. Chamber 5 is connected, through a reversing valve 26, selectively to line 2<SP>1</SP> or 2<SP>11</SP>, the other line being connected to exhaust via this valve. Valve 26 has a central position in which both lines 2<SP>1</SP>, 211 are connected to exhaust. Rotating the valve to connect one of the lines to pressure also, through a pin and groove and slot connection adjusts the height of a spindle 27 to increase the spring-loading on spool 12. Liquid is admitted through line 2<SP>1</SP> or 211 to one side of piston 21, liquid from the other side passing to exhaust through a passage 20<SP>1</SP> or 20<SP>11</SP>, a port 32 in the piston, and bore 33. Spring 23 is compressed until the pressure rises sufficiently to allow spool 12 to be restored to its neutral position.
Patent GB-1529944-A (GB)
Title: Extruder
IPC: B29C48/50
Filed: 1976-01-16
Abstract: 1529944 Screw mixers IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Jan 1976 [7 Feb 1975] 5284/75 Heading B1C [Also in Division B5] An inlet 4, into for an additive to molten polymer being delivered by a rotating screw, 3 through an extruder barrel 2, is of an axial length at least equal to that of the screw diameter and comprises a land 6 along the length of one side of the inlet 4 towards which the screw rotates, so that the additive is drawn into a rolling bank of the polymer which is formed along the land 6, from polymer which it draws off from the screw 3. The land 6 enables a higher concentration of additive to be incorporated, and effects a degree of mixing which minimises the amount required by the screw downstream of the inlet 4 i.e. to avoid breakage of glass fibre additive. On the side opposite the land 6, the inlet 4 comprises a step 7 sloping down to and around the screw and widening to the downstream end of the inlet 4 to merge with and restrain the polymer roll into a tapering scallop shaped groove 8 in the barrel wall extending downstream of the inlet 4. Spiral rotation of the polymer along the length of the step 6 to be drawn into the scallop 8, is enhanced by tapering of the width of land 6 in the downstream direction. The land 6 may be horizontal, but may be downwardly inclined along its length, and inclined inwardly towards the screw axis. The inlet 4 may be open to atmosphere, connected to vacuum, or supplied with gases such as nitrogen and an evacuation port may be provided downstream of the inlet 4. The examples relate to polypropylene polymer with the additive comprising chopped glass strand, titanium dioxide, or talc. The additive may also comprise pigment, and various other polymers are specified.
Patent GB-1534338-A (GB)
Title: Integrated circuits
IPC: H01L27/082
Filed: 1976-02-11
Abstract: 1534338 Integrated circuits GENERAL ELECTRIC CO 11 Feb 1976 [25 Feb 1975] 05296/76 Heading H1K An I.C. comprises a power transistor 19 and a signal transistor 20 of the same conductivity type formed in a high resistivity epitaxial layer 14 on a semiconductor substrate 11 of the opposite conductivity type, the transistors being separated by isolation diffusions 16-18 and the signal transistor being formed in a diffused pocket 21 of low resistivity and of the same conductivity as the epitaxial layer 14.
Patent GB-588683-A (GB)
Title: Bevelling machine suitable for bevelling glass and the like
IPC: B24B9/10
Filed: 1945-03-02
Abstract: 588,683. Bevelling. BERNHARDT, L. March 2, 1945, No. 5297. [Class 60] A machine for bevelling glass and the like, includes a grinding member, a rotary carrier with jigs disposed around it, means for resiliently urging the carrier to the grinding wheel, means for automatically retracting the carrier from the grinder after grinding a predetermined depth, and means for automatically rotating the carrier, during or following retraction, through an angle equal to the angular displacement of the work-carrying jigs so as to bring next succeeding work-piece into engagement with the grinder. A cylindrical drum carrier CD on a spindle SP, supported in channels in side members SM carries spaced jigs CJ holding work-pieces WO, which may be glass sheets for bevelling. A rod CR, connecting the spindle SP and the piston of a pneumatic cylinder PC, automatically retracts the carriers from a grinding wheel GM after a predetermined depth of cut has been reached, and then moves the carrier back towards the grinder when a ratchet wheel RW on the spindle engages a pawl on the machine frame to rotate the carrier to present the succeeding work-piece to the grinder. To hold the carrier against rotation during grinding a bolt BO on the machine frame engages recesses in a wheel WH on the spindle. The clamps CJ may be of the screwdown type or pneumatically or automatically operated by means of a cam device. Slight angular reciprocatory motion may be given to the carrier to shape grind.
Patent GB-696153-A (GB)
Title: Improvements in control and ignition apparatus for fluid fuel burning appliances
Inventor: STROBEL CHARLES KENNEDY
IPC: F23Q9/12
Filed: 1951-03-06
Abstract: 696,153. Magnets. ROBERTSHAW-FUL. TON CONTROLS CO. March 6, 1951, No. 5414/51. Class 35. [Also in Groups XI and XXIX] In a control apparatus for a fluid fuel burner (see Group XI), the outlet 60 of a valve chamber 58 is closed by a steel ball 62 which is raised by a permanent horse-shoe magnet 54 only when a plate 56 of Curie point metal extending across the poles of the magnet is heated by a pilot burner 64 to a temperature at which it is substantially non-magnetic and no longer shields the ball from the magnet. Alternatively the magnet casing may be made of Curie point metal and the plate 56 of non-magnetic material.
Patent GB-588698-A (GB)
Title: Improvements in or relating to destination indicators
IPC: B61D41/00
Filed: 1945-03-05
Abstract: 588,698. Blind rollers. EQUIPMENT & ENGINEERING CO., Ltd., and SWIFT, H. B. March 5, 1945, No. 5416. [Class 20 (iii)] [Also in Group XVIII] In destination indicators comprising a display band wound on rollers which are journalled at one end in a spring-pressed telescopic bearing having a friction surface to prevent too free running of the roller, means are provided to reduce the chance of accidental disconnection of the roller from the bearing. The pivot pin B<4> is carried on a tube B' telescoping in a tube A', carried by the frame A, against the pressure ot a spring C. A pin B<2> moves in a slot A<2> in the tube A' to allow of detachment of the roller D, but the slot A' can be closed against full entry of the pin B<2> by a manually rotatable ring E. The ring E has a slot E' which is brought into register with the slot A<2> when removal is desired, and a spring detent may be provided to hold the ring in a non-registering position of the slot E', A<2>. Specification 424,665, [Group XVIII], is referred to.
Patent GB-280081-A (GB)
Title: Improvements in the mounting of box-wheels of fabric and other printing machines
IPC: B41F13/00
Filed: 1927-02-28
Abstract: 280,081. Heywood, J. J. Feb. 28, 1927. Box-wheel adjustments.-Box-wheels for fabric printing-machines are formed with two or more key-ways c<9> - - a<12> in their bosses which are spaced apart at distances equal to a tooth and a fraction of a tooth, so that when the key-ways are fitted on a key formed on the mandrel of the box-wheel they allow different points in the pitch of the box-wheel teeth to engage, with the crown wheel. By this means, when the wheel is changed, the box-wheel can be set so as to require only a small adjustment of the box-wheel worm or screw-and-lug adjustment devices. The key-ways may extend right through the hub of the wheel as shown in Fig. 12, or indicating marks m, Figs. 10 and 11 may be provided to indicate the positions of the key-ways. More than one set of keyways as c<9> - - c<12> may be used, the corresponding key-ways being spaced apart a distance corresponding to a whole number of teeth, and one or more keys may be used to engage the key-ways.
Patent GB-1047183-A (GB)
Title: Improvements in or relating to blow molding
IPC: B29C45/36
Filed: 1964-02-10
Abstract: 1,047,183. Injection moulding; blow moulding. E. I. VALYI. Feb. 10, 1964 [Feb. 8, 1963], No. 5554/64. Heading B5A. Apparatus for the manufacture of hollow plastics articles by blow moulding an injectionmoulded parison 45, comprises a blow-core 35 the free end 37 of which is brought into abutment with aligning means (28, 46) so as to maintain the core in accurate alignment with the axis of a mould recess 26, thereby ensuring constant thickness in the walls of the parison 45. As shown, the aligning means comprises a pin 28 carried by an end wall 25 and engageable in a conical recess in the blow core 35. Material is injected through an axial passage 31 terminating in a plurality of divergent passages 32. After the parison has been formed it is removed from the mould together with the blow core and blow mould halves 50, 51 (Fig. 1, not shown) closed thereon. Knife edges 59, 60 on these mould halves shear off a portion of the end wall 61 of the parison and in doing so close the opening formed therein by the pin 28. Air or other fluid is then introduced through ports 41 in the blow core 35.
Patent GB-536550-A (GB)
Title: Improvements in spools and bobbins for thread, yarn and the like
IPC: B65H75/12
Filed: 1940-03-29
Abstract: 536,550. Bobbins &c. LOCK, J. E. March 29, 1940, No. 5680. [Class 120 (iii)] A bobbin or spool comprises a barrel 10 of cardboard having an outwardly flanged end 11 which is seated on the base 14 of a cup-shaped opening in a wooden base member 12 and secured therein by a bushing 15 having chamfered sides and an orifice therethrough and which is pressed into the opening in the base member and engages with the flanged end of the barrel. The other end of the barrel may be provided with a head and the bush securing it to the barrel may extend into the barrel to strengthen the bobbin.
Patent GB-949774-A (GB)
Title: Improvements relating to photographic colour printing
IPC: G03B27/73
Filed: 1960-02-15
Abstract: 949, 774. Colour photographic printing. GEVAERT PHOTO-PRODUCTEN N. V. Feb. 15, 1960 [Feb. 13, 1959], No. 5753/63. Divided out of 949, 773. Heading G2C. Time for printing colour images on to print material having blue-, green- and red-sensitive layers is reduced by exposing the subject to be printed either successively through two filters using one white light source or simultaneously through two filters using two white light sources, one filter transmitting light in two of the three primary colours and the other filter transmitting light in the third primary colour. If the filter with the wider transmission band is considered when a predetermined quantity of light in one of the two primary colours has been transmitted a filter, which absorbs light in that colour but transmits in the other colour, is inserted and when the other primary colour transmitted reaches a predetermined quantity, the light beam is either switched off if two light sources are being used or the first-used filter is removed from the beam and replaced by the other filter. When one light source is being used the filters may be inserted in either order. Generally blue and yellow are the filters used. The above process may be used for print material which has an overlap of sensitivity in the blue- and green-sensitive layers in which case filters are chosen so that transmission is prevented or restricted in the overlap region (see Specification 949,773). In the light beam of the apparatus is placed a heat-absorbing filter, a light-diffusing filter, the negative, a blue filter and the positive print material. Specification 660,099 also is referred to.
Patent GB-234214-A (GB)
Title: Improvements in or connected with repeating apparatus for gramophones and like sound reproducing instruments
IPC: G11B3/31
Filed: 1924-03-06
Abstract: 234,214. Newland, C. L. March 6, 1924. Returning sound-box to starting-point.-Relates to repeating-mechanism for gramophones and the like, of the kind comprising a base plate fitting upon the centre of the record so as to turn therewith and having eccentrically pivoted on it an arm which is extended automatically after engagement by the reproducing needle and transfers the sound-box to the starting-point on the record. According to the invention, the arm is made in two telescopic portions or otherwise formed in relatively movable parts, so that the length of the arm can be adjusted. In the construction shown, the arm 1, consists of two slidably adjustable portions k<l>, k<2>, clamped together by a screw p. The arm is pivoted at l<1> to a base-plate a, which is connected to the turntable spindle by resilient gripping-members j within a flanged boss f, adjuetably clamped by a knob h in a slot in the base-plate. A spring I normally holds the arm k against the knob h. On the free end of the, arm is pivoted a finger s, one end u being enlarged, and weighted and provided with a fork w to engage the stylus. The plain end x is normally extended as shown in Fig. 1, but when it strikes the needle as the latter approaches the end of the record the finger is swung round, so that the fork w picks up the needle after the next revolution has occurred. The arm k is thue prevented from rotating with the base-plate, and a ridge m on the plate passes under a lug o depending from the arm. The arm is therefore tilted upwards and at the same time extended outwardly from the centre of the record, so that the soundbox is carried to the outer edge of the record and is deposited there. The arm k then passes clear of the needle and is brought back against the knob h by its spring, the finger s automatically returning to its normal position. The finger may be dispensed with, in which case the fork is provided on the end of the arm k itself.
Patent GB-511857-A (GB)
Title: Improved production of spun glass
IPC: F42C9/16
Filed: 1938-02-24
Abstract: 511,857. Making glass fibres. POLLAK. F., and NEUMANN, F. Feb. 24, 1938, No. 5892. [Class 56] Relates to the method of making glass fibres in which the molten glass is drawn from apertures in a crucible or spinneret 2, Fig. 2. According to the invention, the cone 1 of glass which forms at each aperture is heated internally by an element which projects into the cone. The element may consist of an electricallyheated conductor 4, and it may be arranged to heat the upper part of the cone or to extend to the tip. It may also be arranged in an aperture in a receptacle which receives molten glass from a melting-pot. The element may be arranged below the aperture, as shown in Fig. 7, and to project laterally into the cone of glass. Specification 452,810 is referred to.