baber/WOPTO huggingface dataset:
Patent GB-1051714-A (GB)
IPC: D21F1/48
Abstract: 1,051,714. Paper-making machines. NORTON CO. June 5, 1963 [June 18, 1962]. No. 24036/63. Heading D2A. A Fourdrinier wire paper machine, in which the underside of the wire is engaged by the upper surface of a forming board and foil elements, has each wire engaging surface formed of a refractory material, the surfaces being imperforate, wear resistant, and relatively friction free with respect to the wire, and having at least the leading edge rounded. The coating is preferably sprayed onto a nickelchrome undercoat on a stainless steel or bronze base by the method described in Specification 745,257. Preferred oxides are chromium and aluminium oxides while zirconium or magnesium silicate aluminate may be added to the latter. The oxide coating is polished. The coating is porous so that water in the pores acts as a lubricant, or alternatively resin-for example a phenolic, epoxy, or silicone resin-may be added to the oxide surface and cured, thereby penetrating into the pores. The resin surface layer may optionally then be ground away.
Patent GB-1051719-A (GB)
IPC: H02P23/18
Abstract: 1,051,719. Automatic speed control. ENGLISH ELECTRIC CO. Ltd. Sept. 18, 1963, No.36694/63. Addition to 821, 108. Heading G3R. [Also in Division H3] A frequency-responsive circuit comprises capacitor 25 and inductance 26 as well as an induction regulator 27 having primary winding 27a energized in accordance with the voltage across the capacitor and secondary winding 27b for applying a voltage to the inductance. The  transformation ratio of the regulator is determined by the sine of the angular displacement of its rotor from a datum position, the relationship between the angular setting of the regulator shaft and the resonant frequency of the tuned circuit being approximately linear. Primary winding 28b of input transformer 28 is connected across capacitor 25, the winding 27a being energized from secondary winding 28a and winding 27b being connected in series-opposition with secondary winding 28c. A phase discriminator 30 produces an output signal dependent on the deviation in phase of the resultant of the currents in the impedances 25, 26 from the datum set by the regulator 27. The frequencyresponsive circuit is supplied by tachometer generator 21 driven by motor 20 associated with speed-controller 23 and amplifier 24 so as to reduce the deviation in phase. The resultant currents are applied to the phase discriminator by auto transformer 29, and a current in phase quadrature is applied through transformer 31. The gain of amplifier 24 may be reduced as the voltage of the tachometer generator 21 increases. An automatic voltage regulator may be associated with slip-rings 21b so that the output voltage of the generator is maintained at a desired value. A single-phase tachometer generator may replace the three-phase generator 21.
Patent GB-1053005-A (GB)
IPC: B41L39/14
Abstract: 1,053,005. Feeding sheets. G. RITZERFELD. June 8, 1965 [July 29, 1965], No. 24121/65. Heading B6B. In a rotary duplicating machine a photoelectric cell and a light source are arranged in a easing 1 beneath the copy sheet feed table 13 and are both inclined so that their arcs meet at a common point 10 above the feed table, the arrangement being such that the driving means of the machine is operated in response to reflection of light from the light source to the photo-electric cell by a copy sheet 21 fed along the feed table. The cell 7 and light source 3, Fig. 1 (not shown), are arranged in apertures in the casing 1 having inclined passages in which lenses 4, 8 are disposed, and the axes of the passages meet at a focal point 10. A copy sheet 21 flat on the table 13 will not cause light to be reflected on to the cell, but must be bowed, as at 21a, to lie in an arc between upper and lower limit points 11, 12 to cause reflection. Two insulated feeler fingers 15, 15a are rockable on a spindle 14 and extend into grooves in a rubber-covered feed roll 16; a counterweight 18 on each finger urges the finger tips into engagement with a steel feed roll 19 which engages the roll 16. A copy sheet 21 placed on the table 13 by hand and urged forward, will depress the tips of the feeler fingers 15, 15a away from the roll 19 and be front registered by the rolls 16, 19, and continued movement of the sheet will cause it to be bowed at 21a to cause reflection of light on to the cell 7. A member 22 prevents excessive bowing of the sheet 21. Before the machine can operate for printing, it is essential that both fingers 15, 15a be depressed, and the cell 7 should receive reflected light, which means the presence of a sheet which is appropriately registered on the table 13. The printing cylinder 33, Fig. 3 (not shown), has a pivoted pawl 31 thereon which is urged by a spring 32 to engage a ratchet-wheel 23 coupled to a motor-driven chain 26. The pawl 31 is disengaged after each revolution of the cylinder 33 by one end 28 of a lever, pivoted at 29, which is controlled by a release magnet 27. A cam 57 on the cylinder 33 operates a switch 58 in the circuit of the light source 3. The magnet 27 is operated when a registered sheet is in feeding position to allow the printing cylinder 33 to rotate for a printing operation. The lever 28 is locked in the release position shown in Fig. 3 by a magnet 41 and lever means 38, 42.
Patent GB-1053864-A (GB)
IPC: B67D7/40
Abstract: 1,053,864. Retractive switches. W. D. RICHARDS. March 10, 1964 [Nov. 4, 1963], No. 35587/65. Divided out of 1,053,863. Heading H2B. [Also in Division A4] The description of the invention is substan. tially identical with that of Specification 1,053,863 from which it has been divided, but the claims relate to a fuel oil delivery apparatus.
Patent GB-1084221-A (GB)
IPC: H02K33/02
Abstract: 1,084,221. Rectifying. LINK-BELT CO. Sept. 15, 1964 [Sept. 25, 1963], No. 37668/64. Heading H2F. In a control circuit for varying the current fed to the electromagnet FDR of a vibratory feeder, the anode-cathode circuit of an SCR is connected in series with the electromagnet across an A.C. supply 1, 3, and a network comprising a capacitor C1, a variable resistor R2 and a diode SI-1 provides firing pulses of variable phase delay for the SCR which are fed through a diode SI-2 to the SCR gate. The diodes SI-1 and SI-2, the capacitor C1, the rheostat R2, and an optional limiting resistor R1, may be encapsulated as a unit in a mastic or epoxy resin material
Patent GB-1095291-A (GB)
IPC: G01N23/04
Abstract: 1,095,291. Stereoscopy. ROLLS-ROYCE Ltd. Nov.9, 1965 [Nov. 14, 1964], No.46455/64. Heading G2J. An object 11 is inspected by illuminating it by a source 10 and forming a binocular image, the relative positions of the object and the source being cyclically varied, the arrangement being such that the object is viewed by one eye exclusively at one extremity of the cyclical movement and by the other eye exclusively at the other extremity. As shown a turbine or compressor blade 11 is mounted for angular oscillation in front of a source 10 of X-rays, the image being formed on the screen 14 of an image intensifier 13. The binocular viewer 15 adjacent screen 14, is provided with a shutter 16 synchronized with the oscillation of blade 11. To enable the blade 11 to be viewed from any angle it may be displaceable from its initial mean position, for example rotated about its axis, whilst undergoing oscillations about such axis.
Patent GB-1229587-A (GB)
IPC: F16H55/56
Filed: 1967-06-06
Abstract: 1,229,587. Harvesters. MASSEY-FERGUS ON G.m.b.H. 24 May, 1968 [6 June, 1967], No. 25968/67. Heading A1F. [Also in Division F2] In a combine harvester having a variable ratio drive for a driven mechanism the drive comprises a belt and pulley drive connection between first and second shafts, the first shaft being drivingly connected to, radially spaced from, parallel to and position adjustable around a shaft of the mechanism and the pulley on only one of the pair of shafts is a variable diameter V-belt pulley. In an application to a combine harvester the cylinder 1, Fig. 3, of the threshing mechanism is driven from a drive shaft (5), Fig. 1 (not shown), via an intermediate shaft 6 and a variable ratio pulley 12. The latter drives the cylinder 1 via shaft 7, gears 20, 21, 23 and shaft 13A in a gearbox which is rotatably mounted at 15 in a wall 2A. The effective diameter of pulley 12 is variable by moving the shaft 7 around the axis of the cylinder 1 by rotating of the gearbox 13 using a screw-threaded control rod (16) having a hand control wheel (19). The gearbox may have two ratios as shown, the intermediate shaft (6) may be the shaft of a rear beater of the threshing mechanism and shaft 13A may be connected to a tachometer. The variable diameter pulley has spring-loaded flanges 27, 28, Fig. 4 (not shown), mounted on a pair of axially slidable sleeves 31, 32 which co-operate with seals 38, 40, 41 to form annular lubricant chambers which are interconnected by passages 44.
Patent GB-1231716-A (GB)
IPC: H02K19/24
Filed: 1969-06-11
Abstract: 1,231,716. Inductor alternators. E. L. BARRETT. 11 June, 1969 [12 June, 1968], No. 29563/69. Heading H2A. A brushless alternator comprises a magnetizable axially extending stationary support member 12 arranged to be fixed at one end to a housing or fixing bracket 14 and around and between the ends of which is mounted a stationary exciter coil 48, bearing means 20 at axially spaced portions of the support member and mounting for rotation about the support member and coil a rotor 22 including two polepieces 28, 28<SP>1</SP> having mutually interleaved integral exciter poles (34), Fig. 3, the rotor having surfaces which beyond opposite ends of the coil are spaced from the support member by cylindrical air gaps 46 of limited radial extent, and a stationary armature 58 immediately adjacent the rotor poles and radially outwards of the coil; D.C. energization of the coil sets up a unidirectional magnetic flux through the support member, the rotor polepieces, the air gaps, and the armature to induce, when the rotor is rotated, A.C. in the armature winding 60. In the embodiment shown, the rotor poles are tapered, axially and radially, and are enclosed by a non-magnetic ring 42, whilst the armature core contains the 3-ph. winding 60 in slots 64, 66 of alternately different depth and which face radially outwardly. The alternator is applicable to a vehicle, being beltdriven, and its output may be rectified. In other embodiments, the rotor poles are, instead, radially between the armature and exciter coil, and the armature core comprises two concentric ring portions (80, 82), Fig. 11, which are removable to allow assembly of the winding; the support member may carry a rotatable shaft (75), Fig. 10, supporting the rotor.
Patent GB-1232567-A (GB)
IPC: G01S11/10
Filed: 1969-02-21
Abstract: 1,232,567. Radio navigation. STANDARD TELEPHONES & CABLES Ltd. 21 Feb., 1969, No. 9534/69. Heading H4D. In a distance-measuring system radio waves are emitted from two spaced sources on different frequencies differing by a fixed amount, a mobile station has two receivers with the respective aerials spaced in the same sense as the two sources (e.g. if the sources are spaced vertically, so are the receiving aerials), each receiver being capable of receiving the two radiated waves and deriving a beat note, and means for measuring the frequency difference between the beat notes, and the system includes means causing rhythmic variation of the spacing either between the two sources or between the two receiving aerials. The source spacing variation may incorporate a commutated aerial array, commutation being either constant velocity unidirectional motion or constant velocity bi-directional motion. When variation of spacing at the receiving station is provided each aerial may be a linear array of elements connected in turn to the respective receiver by constant velocity unidirectional commutation, the two arrays being commutated in opposite directions. Specifications 1,183,458 and 1,225,190 are referred to. For determining distance-along-runway a horizontal and commutated array is utilized and may be the broadside array of a localizer.
Patent GB-1232627-A (GB)
IPC: A61K8/66
Filed: 1968-06-18
Abstract: 1,232,627. Enzyme-containing dentifrices. PACIFIC BIOCHEMICAL Inc. 18 June, 1968, No. 28982/68. Heading A5B. Stabilized liquid and paste enzyme compositions comprise the enzymes Bacillus subtilis protease and amylase dissolved in an amount of de-ionized water not in excess of 30% by weight of the final composition, a water-soluble organic solvent in which the enzymes are soluble and which will not cause precipitation of the enzymes, and have a pH of 6 to 8. The compositions may be in the form of toothpastes, or mouthwashes for use in oral hygiene. The organic solvent may be glycerol, glycerol and sorbitol or propylene glycol, or sorbitol and propylene glycol, and the compositions may also contain a water-soluble calcium salt e.g. calcium lactate or chloride and/or a surfactant.
Patent GB-1233416-A (GB)
IPC: B60R22/18
Filed: 1968-08-21
Abstract: 1,233,416. Releasable fastenings. SIGMATEX A.G. 21 Aug., 1968 [24 Aug., 1967], No. 39910/68. Headings E2A and E2B. A anchorage device for straps or belts, comprises a fitting having means 9 for engaging the strap or belt, and a shank 10, an anchoring plate 3 adapted to be secured to a fixed member and provided with an opening into which the shank of the fitting is to be inserted, the shank having retaining means engageable with the plate to transmit to the plate tension forces exerted on the strap, and a locking 13 pin also insertable into the opening for preventing the shank of the fitting from being turned in the opening through a complete 360 turn and from being extracted from the anchoring plate. In the construction shown the opening in the anchoring plate consists of two intersecting circular holes one of the holes 6 being threaded for receiving the shank of the fitting which is also threaded the threads providing the retaining means and the other hole being smaller and receiving the anchoring pin. The shank has two flats and the width of the shank between the flats is such that it can be inserted into the opening without a screwing action by being partly disposed in each hole, after which it is moved into the hole 6 and turned through a small angle to allow the pin to be inserted; the arrangement permits rotation of the fitting after the pin is inserted through a small angle which is less than 360. The anchoring plate has two holes for the reception of screws by which it is secured to the support. In a modification the fitting instead of having a screw threaded shank has a shank with a terminal projection the width across the projection being such that it can be inserted through the opening with the shank partly in the hole for the pin after which rotation engages the projection behind the anchoring plate. The pin can be in the form of a axially split resilient sleeve with an annular groove into which the edge of the locking pin hole fits.
Patent GB-1233931-A (GB)
IPC: G04B1/08
Filed: 1968-07-12
Abstract: 1,233,931. Clocks. THWAITES & REED Ltd. April 10, 1969, [July 12, 1968], No.33436/68. Heading G3T. A clock has a driving weight 11 in the form of a container capable of being filled with a flowable substance. The container comprises a plastics bottle provided with a screw cap 13 to which a hook 14 is attached. When the bottle has been filled with water, sand, &c. the cap is screwed on to the bottle which is attached by the hook 14 to one end of a driving chain 12. The weight may be externally decorated.
Patent GB-1234377-A (GB)
IPC: F28D7/08
Filed: 1969-06-23
Abstract: 1,234,377. Making heat exchangers. OLIN CORP. 23 June, 1969 [2 July, 1968], No. 31530/69. Heading B3A. [Also in Division F4] A finned heat exchange tube of the crosssection shown in Fig. 3 (or Fig. 3A) is made by placing (in any known manner and as shown in Fig. 1) parallel strips 103, 106, 107 of stop weld material between two sheets of metal (unspecified); hot or cold bonding the sheets together and then slitting the edges providing strip portions 2, 3, 4, 5, Fig. 2. These strip portions are separated, bent outwardly and twisted to form the fins, e.g. 41, 42, 43 on the tube which can have its fluid passageway 20 formed either before or after the fins are bent, by inflating the bonded sheet assembly along the central zone of stop weld material 103. The bending and twisting operations to form the fins may be separate or simultaneous. The heat exchange tube may be bent subsequently into a helix (Figs. 4-7), the method of bending not being described in detail.
Patent GB-1238579-A (GB)
IPC: H03B29/00
Filed: 1969-05-19
Abstract: 1,238,579. Noise generators. MARCONI CO. Ltd. 3 Dec., 1969 [19 May, 1969], No. 25316/69. Heading H3B. A noise generator for use in measuring performance of microwave radio receivers comprises resistive sheets 6, 7 and 8, Fig. 1, supported within and near the closed end of a rectangular waveguide 1, the waveguide having a polyethylene terephthalate window 3 and being cooled by liquid nitrogen 5. The resistive sheets, which are of " Nichrome " (Registered Trade Mark) or graphite on mica or card are supported in liquid nitrogen by polystyrene foam 9, and their ends nearest the window 3 are angled to minimize power reflections as shown at 7a, Fig. 2. The waveguide 1 is highly conducting, being made, for example, of copper, and may be bolted to a receiver by flange 2. If the generator is used vertically, the sealed container 4 may be replaced by a Dewar vessel. The window 3 is preferably inclined at 30 degrees to one of the waveguide walls. A further window (not shown), preferably heated, may be used to avoid condensation on window 3.
Patent GB-1256968-A (GB)
IPC: A61K31/295
Filed: 1969-03-19
Abstract: 1,256,968. Oral iron composition. H. C. HEINRICH. 19 March, 1969 [21 March, 1968; 19 March, 1969]. No. 14375/69. Heading A5B. An oral iron preparation, in dosage unit form, comprises per dosage unit: (a) 10-200 mg. of ferro-ions in the form of an iron-II salt the anion of which is physiologically tolerable, (b) a physiologically tolerable acid that is solid under administration conditions and has an acidity superior to that of carbonic acid and (c) an alkali metal or an alkaline earth metal carbonate or bicarbonate in an amount which may be equivalent to or less than the amount of acid. The iron salt is suitably iron chloride, iron funarate, iron succinate, iron citrate, iron lactate, iron carbonate or iron gluconate. The acid used is suitably citric acid, tartaric acid or ascorbic acid.
Patent GB-1264334-A (GB)
IPC: H01R25/00
Filed: 1968-06-14
Abstract: 1,264,334. Two-part couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 3 June, 1969 [14 June, 1968], No. 28328/68. Heading H2E. I-shaped conductive e.g. copper strip (11) is bent in its intermediate portion round a core 22 of cable 19 in a first channel of insulating housing 15 and extends as four terminals in a second channel for connection to leads 24. Portions 14 may be spot welded. In a second embodiment separate arms project from the central part of the terminal strip for crimping round the cable.
Patent GB-1264431-A (GB)
IPC: B01F11/00
Filed: 1970-04-24
Abstract: 1,264,431. Mixing powdered materials. E.A. WAHL. 24 April, 1970, No. 19945/70. Heading B1C. Apparatus for mixing powdered or granular materials comprises a tubular chamber 24 containing a rotatable paddle wheel therein, and means to vibrate the chamber and wheel to fluidize the material as it flows from inlet 47 to outlet 48. The chamber is supported on a vibration insulator mounting comprising a support arm 27 mounted in rubber bushings 28, 29, and on a beam 16 which is vibrated by eccentric weights 22, 23, rotated on shaft 19. The paddle wheel comprises four bars 35- (38) mounted on radial arms 39-42.
Patent GB-1265873-A (GB)
IPC: G01M1/22
Filed: 1969-08-14
Abstract: 1,265,873. Measuring rotary unbalance electrically. REUTLINGER-LOSENHAUSEN MASCHINENBAU G.m.b.H. Aug. 14, 1969, No.40664/69. Heading G1N. In a rotary unbalance determining machine Fig. 1 the out-of-balance forces of the rotating body 1 effective at the machine bearings act through force transmitting means upon dynamometers 14, 15 which are so displaced from the machine bearings that the forces acting upon them correspond to the out-of-balance forces present in the compensation planes I', II'. Alternatively Fig. 3 the machine may include dynamometers 19, 20 at the bearings in which case their outputs are transmitted to electro-mechanical alternating force generators 23, 24 acting on a beam 25 located outside the machine and the reacting forces are measured by further dynamometers 26, 27 arranged so that the effective reacting forces thereon correspond to the forces effective in the compensation planes. In the arrangement of Fig. 1 the out-of-balance forces occurring in planes I, II act as alternating forces on rigid beam 13 bearing on the dynamometers 14, 15 positioned so that the electrical signals from the dynamometers correspond exactly to the forces acting in the compensating planes. In the alternative arrangement the relative distances between the alternating force generators 23, 24 and between the additional dynamometers 26, 27 are geometrically similar to the relative distances of planes I, II and I', II' of Fig. 1. The outputs from dynamometers 26, 27 are fed to radius regulators 32, 33 and amplifiers 34, 35 supplied with a reference signal from phase generator 38 which may be an alternating-voltage generator or a photo-electric element arranged to respond to a locating mark on the body 1. The degree of unbalance is indicated at 39, 42 and angular position at 40, 41. Fig. 4 (not shown) indicates how, using an external beam, the balancing of overhung bodies can be achieved by reversing the operating direction of one of the generators and one of the additional dynamometers.
Patent GB-1266695-A (GB)
IPC: G02B21/00
Filed: 1969-06-04
Abstract: 1,266,695. Comparison microscopes. INTERNATIONAL BUSINESS MACHINES CORP. June 4, 1969 [June 10, 1968], No.28253/69. Heading G2J. The objectives 2, 3 of a comparison microscope direct light from identical objects 4, 5 towards two prism reflectors 10, 11 and hence via two partial reflectors 23, 22 to the focal plane of the viewing means. The system is arranged to bring the images alongside each other in this focal plane and masks 20, 21 on a support member 30 are arranged to block out a part of each image and so leave complementary parts of the images together. The system as shown includes a field lens 24, an image relaying lens 31 and an eyepiece 14. The objects may be illuminated through the objectives with the aid of the semi-reflectors 14, 15 and the variable intensity light sources 12, 13.
Patent GB-1290006-A (GB)
IPC: F16D3/41
Filed: 1969-12-04
Abstract: 1290006 Universal joints; bearings GELENKWELLENBAU GmbH 4 Dec 1969 [5 Dec 1968] 59296/69 Headings F2A and F2U A universal joint has a plastics thrust plate 3, 13 between the end face of a pin 1 and an associated housing 2, the thrust plate having lubricant recesses 16 moulded into its faces. The plastics of the plate may be a glass fibre reinforced polyamide or a modified polyester. The recesses 16 may be part spherical pits, or curved intersecting straight grooves or axial bores. The lubricant may be molybdenum disulphide.