baber/WOPTO huggingface dataset:
Patent GB-772426-A (GB)
Title: Improvements in or relating to aircraft navigation systems
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: G05D1/06
Filed: 1952-11-19
Abstract: 772,426. Automatic steering control systems. SPERRY GYROSCOPE CO., Ltd. Oct. 30, 1953 [Nov. 19, 1952; Jan. 29, 1953], Nos. 29223/52 and 2572/53. Class 38 (4). In a system for automatically controlling an aircraft, a signal dependent on pitch and a signal dependent on angle of attack combine to control a servomotor adjusting the pitch attitude of the aircraft. In Fig. 1 the angle of elevation of the flight path of an aircraft is maintained at a value determined by the setting of a manually operated potentiometer P1. A D.C. signal obtained from this potentiometer is combined with a D.C. signal obtained from a potentiometer P2 constituting the pitch pick-off of a gyro-vertical (not shown) and a D.C. signal obtained through potentiometers P6, P7 adjusted in accordance with airspeed and weight of the aircraft respectively. The resultant signal which is thus dependent on the pilot's setting of potentiometer P1, the pitch angle of the aircraft, the weight of the aircraft and the reciprocal of the square of the speed of the aircraft, and the density of the ambient air, is applied to a high gain drift-stabilized D.C. amplifier 1 which controls, through an electromagnetic clutch 20 operating a pilot valve 22, an hydraulic servomotor 23 adjusting the aircraft elevators 17. To prevent hunting, rate feedback is provided through condensers C2 and C4 from potentiometers P3 and P5 operated by the pilot valve 22 and servomotor 23 respectively. The input impedance of amplifier 1 is reduced by feedback through condenser C3. Potentiometer P7 may be either manually set in accordance with the weight of the aircraft or automatically set in accordance with the quantity of fuel in the aircraft fuel tanks. An arrangement for deriving a signal dependent on airspeed in which a differential bellows associated with static and dynamic air pressure heads controls, through a follow-up switch, a motor operating potentiometer P6, is described. If it is desired to fly the aircraft at constant altitude an altitude error signal may be substituted for manually-operated potentiometer P1. Specifications 666,882, [Group XL (c)], 690,982 and 718,171 are referred to and Specification 690,985, [Group XL (c)], is referred to in the second Provisional Specification.
Patent GB-450397-A (GB)
Title: Improvements in and relating to artificial teeth
IPC: A61C13/10
Filed: 1934-10-12
Abstract: Tooth pins and dental accessories made from wire have a base metal core provided with an inner layer of palladium or silver or alloy thereof, an outer layer of precious metal, and an intermediate layer comprising platinum or rhodium or alloy thereof which prevents diffusion of the outer layer into the inner.  A rod of nickel or its alloys may have a layer of palladium, silver, or palladium-silver and/or gold alloy applied to it, preferably in the form of a tubular shell which is secured to the nickel core by heat and pressure. Alternatively, a sheet of the precious metal is soldered on a sheet of the base metal, the composite sheet formed into a tube and a solid core soldered into it.  The composite rod is rolled and drawn into wire, cut into lengths which may be upset to form heads, and the pins submerged in an electroplating solution from which a layer of platinum, rhodium, or alloy thereof is deposited while the pins are agitated.  This layer may be a thin or "flash" coating.  A final layer of gold is then deposited.  The inner layer may form about 8 per cent by weight of the core, the intermediate layer 1/4 -\ba1/2 per cent.  Specification 374,003, [Group XXXVI], is referred to.  The Specification as open to inspection under Sect. 91 is not limited to the provision of a diffusion-preventing layer but to tooth pins and accessories having at least one of the outer layers electrodeposited. The inner layer may be of platinum, gold or platinum-gold alloy, and the outer layer of platinum.  This subject-matter does not appear in the Specification as accepted.
Patent GB-722610-A (GB)
Title: Improvements relating to the mounting of the lids in covers for containers such as ropeway buckets
IPC: B65D88/56
Filed: 1951-12-13
Abstract: 722,610. Tip buckets. ROPEWAYS, Ltd., and FOSTER, J. W. Aug. 13, 1952 [Dec. 13, 1951], No. 29280/51. Class 78 (4). A cover for a container such as a ropeway bucket having a lid adapted to ride at one of its ends along tracks mounted on or near the cover, has one or more cranks pivotally mounted on or near the cover adapted to act in combination with the lid in such a way that, as the lid is opened and the end rides along the tracks, the other end is initially raised and maintained clear of the tracks. A bucket 10, Fig. 1, is pivotally suspended on trunnions 18 on a hanger 20 to which a cover 22 with segmental end-plates 24, is attached, the cover having a longitudinal aperture in one half, closed by a slidable lid 32 .  A pair of rollers 36 at one end of the lid run on an angle member mounted on the inside of the edge of each plate 24, the rollers have flanges which engage the edge of the plate; A pair of cranks 38 secured to the lid are pivoted to the cover at 40. The bucket is opened manually by the handle 42, or automatically by a projection in the path of the bucket. The cover may be flat, the rollers may be without flanges and engage a troughed channel or the rollers may be replaced by other sliding members. The bucket may tip independently of the cover.
Patent GB-483587-A (GB)
Title: Improvements relating to foodstuffs
IPC: A23J3/20
Filed: 1936-10-28
Abstract: Foodstuffs are prepared by plasmolyzing yeast by direct action thereon of fruit rich in sugar, e.g. dates, figs, bananas, pears, grapes, raisins, or carob beans.  Extraneous sugar may be added before, during or after the plasmolysis.  The product may finally be heated gradually up to about 95 DEG  C. to remove the yeast taste. The process is preferably carried out with exclusion of air.  In an example, 1000 gm. of stoned and minced dates are kneaded with exclusion of air with 460 gm. of pressed yeast.  Plasmolysis begins immediately and after a time, e.g. an hour, the liquid mass produced is screened and the homogeneous product obtained is heated in a closed vessel, with stirring or kneading, slowly step by step over a period of say six hours to about 90-95 DEG  C.  The product may be used in cakes, biscuits, confectionery, jam, marmalade and other food products.
Patent GB-483745-A (GB)
Title: Improvements in cabinets for sound reproducing instruments
IPC: H04R1/28
Filed: 1936-10-28
Abstract: 483,745. Loud-speakers. MURPHY RADIO, Ltd., and BRAYSHAW, G. S. Oct. 28, 1936, No. 29350. [Class 40 (iv)] A cabinet for a loud-speaker has a sheet of sound-absorbent material placed mid-way between the front and back of the cabinet in order to diminish the resonance of the air column within the cabinet. In the construction shown, the sheet 5 located between the front 1 and rear of the cabinet is supplemented by a sheet 8 parallel to and midway between the top 6 and bottom 7 and by a further sheet 9 disposed midway between the side walls. The sheets are cut away to accommodate the diaphragm 3 and its operating mechanism 4. Sheets may also be placed at the positions of the velocity antinodes of vibrations corresponding to harmonies of the fundamental resonances. In the case of a normally openended cabinet, sheets may be placed at the open-end and at a distance from the closed end equal to one third of the distance between the open and closed ends of the cabinet.
Patent GB-960876-A (GB)
Title: Improvements in or relating to steering column mountings in automobiles for facilitating access to the driver's seat
IPC: B62D1/18
Filed: 1960-08-25
Abstract: 960,876. Motor vehicle steering gear. REGIE NATIONALE DES USINES RENAULT. Aug. 25, 1960 [Sept. 1, 1959; May 17, 1960], No. 29399/60. Heading B7H. A steering column 2 is mounted in a bracket 3, 3<SP>1</SP> which is able to pivot about a shaft 4 so that the column may be swung laterally. Drive from the steering shaft is transmitted through a pair of bevel wheels 5 and 6 to the shaft 4 which is connected to the steering linkages. The column may be additionally supported by a roller 9, Fig. 2, which runs in a guide 10 and is connected to the column by arms 7 and 8. Means for locking the column in a given position may be provided. An alternative support, Fig. 3, comprises a pair of spherical rollers 15<SP>1</SP> and 15 disposed on either side of a plate 13. Locking means comprising a cam 18 for urging the roller shaft 16 against a fixed stop 19 are provided. The locking means may be connected by links or a flexible cable to the door of the vehicle so as to be operated by opening the door beyond a given extent. The column may be spring-urged to the laterally displaced position or may be displaced and returned to its original position on opening and closing the door by a link 33.
Patent GB-940446-A (GB)
Title: A method of treating ceramic raw materials produced by froth flotation processes
Inventor: WINDLE WILLIAM
IPC: B03D1/08
Filed: 1961-08-15
Abstract: Ceramic raw material previously beneficiated by froth flotation and containing traces of froth flotation reagents has not more than 4 lbs. of activated carbon added per ton to prevent or reduce undesired frothing during subsequent manufacture.  The material with the carbon is ground to a fine particle size, shaped to form a ceramic article and fired at about 1000 degrees to harden the shaped mixture and to burn out the carbon.  Examples are given in which felspar and felspar/quartz mixtures containing residual acids and oils are mixed with 2,5 lb. of activated carbon per ton after flotation.
Patent GB-1370579-A (GB)
Title: Drying cylinder assembly
IPC: F26B13/18
Filed: 1972-06-23
Abstract: 1370579 Removing condensate from drying cylinders NOKIA AB OY 23 June 1972 [29 June 1971] 29434/72 Heading F4G The dipper pipe(s) 11 for removing condensate from the inner surface of a steam-heated rotatable paper-drying cylinder 1 is connected to dipper tubes 13 having apertures 14, the line through the apertures 14 not lying in any plane which is parallel to the axis of the cylinder, so that the strip of the outer surface of the cylinder to which the paper 2 adheres more firmly (because of the removal of the condensate from the corresponding area of the inner surface of the cylinder) is intersected by the doctor blade 6 at a point, not a line. The dipper pipe 11 may be straight (Fig. 1) and have dipper tubes of different lengths so that their ends 14 are equidistant from the cylinder 1. Alternatively, the dipper pipe may be curved in one or two planes, and have dipper tubes of equal length; the dipper pipe may comprise two curved pipes joined together with the apex at the centre of the cylinder. Steam is supplied at 10 to the hollow shaft 8 and is distributed via pipes 15, and condensate passes from the dipper pipe 11 via support pipe 12 into the hollow shaft 8 and out at 9, the hollow shaft 8 being divided internally by a vertical partition (not shown).
Patent GB-644448-A (GB)
Title: Tractor cable control unit
IPC: E02F3/34
Filed: 1947-11-05
Abstract: 644,448. Winding and paying-out apparatus. CATERPILLAR TRACTOR CO. Nov. 5, 1947, No. 29493. Convention date, April 16. [Class 78 (v)] A pair of cables for controlling an implement drawn by a tractor are operated by two winding drums, each disposed parallel to one side of a triangular-shaped housing, the third side of the housing being secured to the tractor. The housing 10 is secured to the rear of a tractor 11 by means of bolts 13 and contains two drums 12 journalled. in bearings in the two converging walls of the housing and in plates within the housing parallel with these walls. The inner ends of the drum shafts 37 are alternatively geared to a power take-off shaft 44 either through bevel gears 38, 39, 40, Fig. 1, or through a worm wheel 49, Fig. 6, coupled by universal joints to shafts 37, this wheel being of a well known type. Beneath detachable cover plates 45 are mounted on the outer end of each shaft 37 a clutch and a brake. The cables 30 are led off the drums 12 vertically over sheave blocks 32, each rotatably mounted on a vertical pivot on an arm 33 which is in turn rotatably mounted on a vertical pivot 34 on the top of the housing, so that the cables are directed into a vertical sleeve 22 mounted in upper and lower bearings 23, 24, Fig. 4, in the housing. Mounted externally on the sleeve between the upper and lower bearings is a sheave block 15 comprising two sheaves 14, Fig. 5, mounted on sleeves 28 on a pivot 27 and separated by a dividing wall 29. The sleeve 22 is cut away so that the peripheries of the sheaves project into it and cables 30 can pass down the sleeve and around the sheaves from the blocks 32. Sheave block 15 swings through 180 degrees as shown in chain lines, Fig. 1.
Patent GB-1260984-A (GB)
Title: Ionization smoke detector
Inventor: SASAKI KOJU
IPC: G08B17/113
Filed: 1970-06-17
Abstract: 1,260,984. Ionization detectors. NITTAN CO. Ltd. 17 June, 1970 [21 June, 1969], No. 29504/70. Heading H1D. [Also in Division G1] In an ionization smoke detector, means are provided for producing an alarm when the resistance of insulating material supporting the electrodes of the detector ionization chamber falls due to contamination. As shown, the detector includes an insulating base 2 supporting electrodes 10, 12 and 14 so as to form a closed ionization chamber 21 containing a radio-active source 18 and an open ionization chamber 22 containing a radio-active source 20. An electrode 24 is provided on the base 2 and is connected to the inner electrode 10 so that when the intermediate electrode 12 is connected to the gate of an F.E.T., Fig. 2 (not shown), decrease in the insulation resistance lowers the internal resistance of the closed chamber and thereby raises the potential of electrode 12 to actuate the alarm.
Patent GB-1156006-A (GB)
Title: Improvements in the Flow Coating of Workpieces.
Inventor: LADNEY MICHAEL JR
IPC: B05B13/02
Filed: 1966-07-01
Abstract: 1,156,006. Coating apparatus. M. LADNEY. 1 July, 1966 [20 Dec., 1965], No. 29557/66. Heading B2L. In uniform flow coating a workpiece the workpiece is rotated about an axis whilst it is being moved laterally in a direction transversely of said axis and a stream of liquid is directed at the workpiece from a series of nozzles, the nozzles being oscillated such that the stream of liquid issuing therefrom follows the translatory movement of the workpiece for at least one revolution thereof. In the arrangement shown workpieces 22 are mounted at spaced intervals 'on continuous conveyor chains 14 (12) and conveyed through streams of coating liquid which flow from nozzles 18. Whilst passing through the coating station the workpieces are rotated by engagement of pinions 26 with track 30 and the nozzles 18 are pivotted by cam means to follow the workpieces whilst they ars translated through distance C during which interval the workpieces are rotated one revolution. The nozzles are then given a quick return movement to their initial position, during which the conveyor has moved a distance R thus bring- ing the next workpiece within the range of the nozzles. A second series of nozzles 60 may be provided to give a second coating and a series of air nozzles 62 can be provided to smooth the coatings on the workpieces.
Patent GB-336397-A (GB)
Title: Improvements in or relating to photo-sensitive cells
IPC: H01G9/20
Filed: 1929-09-30
Abstract: 336,397. Arcturus Radio Tube Co., (Assignees of Ruben, S.). Jan. 11, 1929, [Convention date]. Light-sensitive cells. - An electrode 1 in a photo-electric cell has a surface 3 of etched cuprous oxide. The surface is obtained by heating the copper electrode in an oxidizing atmosphere at 1,000‹ 0 and immersing it in a solution of ammonium or zinc chloride to produce a rough, crystalline surface. In the cell the electrode is embedded in beeswax and resin 6, and exposed in an electrolyte 5 such as ammonium chloride.' Specification 318,641 is referred to.
Patent GB-650442-A (GB)
Title: Improvements in or relating to electric cables for high frequency transmission
Inventor: WESTON WILLIAM KIRBY
IPC: H01B11/18
Filed: 1948-11-16
Abstract: 650,442. Cables. STANDARD TELEPHONES & CABLES, Ltd. Nov. 16, 1948, No. 29729. [Class 36] The outer conductor of a H.F. coaxial cable consists of a smooth metal strip folded longitudinally to form a tube 4 supported around the inner conductor 3 by insulating spacers 5, one or both edges of the strip having corrugations 6 which are so shaped or displaced that the meeting edges of the strip will not overlap during flexing of the cable. The corrugations 6 may lie on one side of the plane of the tape and may be deformed from a natural symmetrical shape. The outer conductor may be secured in position by one or more helically applied tapes 7. Specifications 650,429 and 650,431 are referred to.
Patent GB-990239-A (GB)
Title: Improvements in measuring systems for electron diffraction patterns
IPC: H01J37/295
Filed: 1961-08-17
Abstract: 990, 239. Investigating electron diffraction patterns. C. W. B. GRIGSON. Aug. 15, 1962 [Aug. 17, 1961], No. 29790/61. Heading G1A. The invention relates to a measuring system and apparatus for obtaining electron diffraction patterns from a specimen 1 which may be a crystal or a powder through or across which a beam 2 of electrons passes and includes means 3, 4 for scanning the resulting diffracted beams 6 across a slit or fine hole 9 at a rate faster than 0.1 c/s, electron collecting means 13, and associated means 10 for recording or displaying the resulting diffraction pattern. In the embodiment shown a main undiffracted beam 5 and the diffracted beams 6 scan the holes or slits 8 and 9 respectively in a plate 7 under the control of a combined D.C. and A.C. magnetic field produced by coils 3 and 4 fed by a master oscillator 16 and D.C. sources 18 and 19 respectively through amplifiers 17 and 20. A Faraday cage 11 collects the electrons from the main beam 5 and the resulting signal is fed to the Y2 plates of a multi-channel oscilloscope 10 through an amplifier 12 and the electrons from the diffracted beams 6 are converted by a scintillator 13 and a photomultiplier 14 to a signal which is fed through an amplifier 15 to the Y1 plates of the oscilloscope. The time base of the oscilloscope 10 is also under the control of the master oscillator 16 so that synchronism of the scanning of the beams 5 and 6 and the trace on the oscilloscope is obtained. Variation of the D.C. component of the field of the coils 3, 4 permits any part of the diffraction pattern to be brought into the region of the holes 8, 9. Calibration may be effected by displaying simultaneously the more intense diffracted beams through both channels of the oscilloscope. In a modification (not shown) two slits at right-angles to each other or a single fine hole are provided for the diffracted beams to permit measuring of the profiles of diffracted spots in two dimensions in diffraction from single crystals. Similar slits or a further fine hole may be provided for the main undiffracted beam.
Patent GB-649565-A (GB)
Title: Improvements in field magnet units for flywheel magnetos
IPC: H02K21/22
Filed: 1948-11-16
Abstract: 649,565. ignition magnetos. TRIGGS, W. W. (Wico Electric Co.). Nov. 16, 1948, No. 29817. [Class 35] A rotor for a flywheel magneto comprises a permanent magnet 1, one end of which forms one of three poles, while the other two poles are formed of two symmetrically arranged similar arcuate members 9 extending from one end of the magnet 1 to which they are fixed. The three-pole magnet is mounted on the inside periphery of a fly-wheel 14, e.g. by rivets 16. A deep recess 141 in the fly-wheel receives the magnet unit except for the flaring ends 9. A U-shaped stationary core having limbs 32, 33 carries the magneto coils 34, 35 on the leg 32. In a modified form, Fig. 7, the fly-wheel, which is of magnetic material, has parts 9<SP>1</SP> utilized to form pole-shoes and the permanent magnet 1<SP>1</SP> has one end in magnetic contact with the inside of the fly-wheel at a place midway between the parts 9<SP>1</SP>. The magnet unit may be die cast into the fly-wheel which, in this case, is of non-magnetic material as in Fig. 6 (not shown).
Patent GB-783385-A (GB)
Title: Improvements in or relating to assemblies of lever-operated electric switches, especially for use in high frequency apparatus
Inventor: AHLERS WILHELM
IPC: H01H21/22
Filed: 1955-10-20
Abstract: 783,385. Keyboard switches. ROTT, H. G. Oct. 20, 1955, No. 29934/55. Class 38 (5). A switch assembly comprises a number of operating members 5 extending through the middle wall of a one-piece, three-sided metal housing 1, the fourth wall of which is formed by an insulating contact-carrying plate 2. The housing 1 has a pivot 4 supporting operating levers 5 which are biased to the position shown by springs 7. Each lever 5 has a tongue 13 engaging a movable plate 14 having contacts 15 co-operating with fixed contacts 16 on plate 2. The levers are held in operated position by a member 10 having a projection 11 engageable with recesses 12 in the levers and releasable by depression of any other lever. The pivot 4 may be dispensed with and each lever may have a notch journalled in the slot in the middle wall of the housing. Certain of the levers 5 may be cranked outside the housing to permit the use of keys 5a wider than the normal spacing between the levers, Fig. 3.
Patent GB-970034-A (GB)
Title: An improved box and lid
IPC: B65D3/28
Filed: 1963-07-29
Abstract: 970,034. Boxes. W. BECKEL. July 29, 1963 [Aug. 9, 1962], No. 30020/63. Heading B8P. A flap 16 in the side wall of a cheese box 13 with lid 10 is provided with a spring 20 to open the flap on removal of the lid. The spring, preferably thin leaf steel, may be attached at either or both ends to the box base and flap, either by gluing or by securing in a pocket; or both ends may be free. The cuts 17, 18 defining the flap 16 preferably extend upwardly and outwardly. The box may be round, square or oval.
Patent GB-253956-A (GB)
Title: Improvements in and relating to refrigerating devices
IPC: A23G9/10
Filed: 1924-12-13
Abstract: 253,956. Paterson, J. S., and Norman, Paterson, & Co., Ltd. Dec. 13, 1924. Ice-cream and like freezers.-In a freezer nf the kind in which a number of containers k holding the substances to be frozen are rotatably suspended from a central spindle d within an outer vessel a containing the freezing liquid, the sides, top, and bottom of the vessel a are provided with evacuated double walls a<1> and the containers are completely immersed in the freezing liquid. The containers k are oval in cross section and taper downwardly and are suspended from the spindle, d by a spider frame g, the lids n being held in position by inner gaskets and pairs of hinged wire clips p. In a modification the containers k, Fig. 7, are supported from the spindle by upper and lower guide rings the latter having footplates r and holding strips s. Fixed and rotatable stirring vanes may also he provided and the containers may have lids secured by bayonet slot joints. The containers may be rotated in opposite direction to the freezing liquid by suitable gearing. The outer vessel is provided with a cover which encloses all the operating parts.
Patent GB-810834-A (GB)
Title: Improvements in or relating to fans
IPC: F04D17/16
Filed: 1955-10-20
Abstract: 810,834. Centrifugal separators. MANTER, F. Oct. 19, 1956 [Oct. 20, 1955], No. 30049/55. Class 23 [Also in Groups I and XXVI] In the ceiling fan shown, the driving motor is of the type having a rotary casing 23, and the conical outer casing 28 of the fan is connected to and rotates with the impeller blades 27 and the conical impeller hub 25. Insects and particles entering the fan inlet are directed centrifugally through holes 30 into the annular space between the casing 28 and a detachable cap 31.