baber/WOPTO huggingface dataset:
Patent GB-354668-A (GB)
Title: Improvements in or relating to kinematograph projectors
IPC: G03B1/50
Filed: 1930-12-18
Abstract: 354,668. Kinematograph apparatus. ZEISS IKON AKT.-GES., 72, Schandauer Strasse, Dresden, Germany. Dec. 18, 1930, No. 38233. Convention date, Dec. 18, 1929. [Class 97 (i).] A kinematograph projector having permanently mounted sprockets each adapted for use with films of different widths is characterized by the provision of detachable and interchangeable units each comprising a film gate, picture window and pressure rollers for the sprockets, the various interchangeable units being designed for films of different widths. As shown in the Figure, the unitary structure A comprises a film gate 1 on which are mounted arms 2 which carry pairs of pressure rollers 3 co-operating with the various film sprockets, which have two or more sets of teeth adapted to fit films of different widths.
Patent GB-341674-A (GB)
Title: Improved means for indicating the position of electric switches and other objects
IPC: H01H9/18
Filed: 1929-12-16
Abstract: 341,674. Indicating position of switches &c. SCOTT, A. H., 32, Broxton Avenue, West Kirby, and HOUGH, H., Ingle, Valencia Road, Hoylake, both in Cheshire. Dec. 16, 1929, No. 38482. [Class 3(ii).] A one-piece electric switch cover a, keyhole surround or like object is provided with one or more comparatively deep recesses d in the form of a ring and containing a luminous preparation e. The ring may be formed as a series of indentations or as a continuous groove, and the luminous preparation is preferably protected by a suitable transparent coating..
Patent GB-1317292-A (GB)
Title: Travelling grate provided with means for sealing gaps between pallets and wind boxes of the travelling grate
IPC: F23H11/10
Filed: 1970-08-10
Abstract: 1317292 Sintering machines METALLGESELLSCHAFT A G 10 Aug 1970 [23 Aug 1969] 38526/70 Heading F4B In a sintering or pelletizing machine, ingress of air into the most downstream windbox 6 through the gap, extending transversely of the travelling grate, between the windbox and the underside of the moving pallets of the travelling grate, is prevented by a sealing arrangement comprising a sealing plate 8 resiliently forced against the supporting cross beams 7 of the pallets by a pair of transversely disposed loaded levers 9 (only one of which is shown), and sealed joint means which prevent air infiltration past the levers 9, between the windbox top edge and the bottom of plate 8. Similar levers 9b and sealed joint means may be provided between the top edge of a suction box 12 downstream of windbox 6, which helps stop air leakage into the windbox 6, by drawing off any infiltrated air, and the other end of the sealing plate 8, or a subsequent sealing plate (8a Figs. 4 and 5, not shown), downstream of the first. Gaps between the sealing plates, or elonggated openings 17 in a single sealing plate allow some air to be drawn through sinter bed 5 into the suction box 12. The levers 9, 9b may be weighted, or hydraulically or spring loaded. As shown, the sealed joint means comprises transversely extending hinges 11, 16 and 18 about which levers 9, 9b pivot, and sheet metal elements 21 extending between the hinges. Alternatively (Fig. 4, not shown) only one transverse hinge may be provided to which the levers and the sealing plate are directly secured, the hinge and its mounting then forming the sealed joint means. In another embodiment (Fig. 5, not shown) the sealed joint means is formed from transversely extending drop bars (23) carried by the sealing plate, which press the levers against a transversely extending hinge about which they pivot. The sealing plates which have curved edges may be formed from parallel longitudinal sections, each section being resiliently forced against the pallet cross beams by loaded levers, adjacent sections being interconnected through sealing bellows.
Patent GB-882245-A (GB)
Title: Improvements in or relating to outer footwear
IPC: A43B13/34
Filed: 1956-12-20
Abstract: 882,245. Attaching heels. SHARP, C., and HOLLAND, K. Feb. 18, 1958 [Dec. 20, 1956], No. 38834/56. Classes 17(2) and 17(3) A plastic heel 19 is united with the aid of a solvent to a cellulosic interlayer 18 attached to the heel seat by adhesive 16 (the rear of the outsole substantially filling the space within the lasted margin of the upper at the heel seat, and being secured therein by cellulose cement). The upper 10, with a heel stiffener, is located to a leather insole 11 which is roughened on the underside and fitted with a hardboard reinforcement 12, and a sock lining 21 is fitted. The sole 13 is formed with a tongue 14, and may have a flap 15 which is short, as shown, or which extends over the whole face of the heel. The seat is filled with cellulose cement 16, tongue 14 is pressed into the cement and secured by tacks 17, the seat and tongue 14 are covered with cellulose cement, seating piece 18 of celluloid &c. as activated in a solvent, which preferably has some solvent action on the material of the heel, and applied to the cement, heel 19 is pressed against piece 18, and flap 15 is cemented to the heel. The heel may be transparent or translucent, opaque, or covered, and may be coloured. Piece 18 is preferably opaque, and may be tinted. A top piece 20 of hard plastic or nylon may be attached to the heel by cement using a cellulose interlayer.
Patent GB-1398446-A (GB)
Title: Electric vehicles
IPC: B60L11/18
Filed: 1973-08-17
Abstract: 1398446 Electric vehicle control CROMPTON ELECTRICARS Ltd 22 Oct 1973 [17 Aug 1973] 39016/73 Heading H2J An electric vehicle is arranged so that under normal load conditions it may accelerate from rest under driver control to a predetermined fraction of its maximum speed and is provided with a preset delay arrangement preventing the remaining upper fraction of the speed range being rendered available to the driver until after a particular time period or distance, and a driver operable switch with which the remaining upper-fraction of the speed range may be utilized, this switch being effective after the particular period. In a first embodiment, Fig. 1, (not shown), two batteries are connected in parallel with the motor during the low-speed period and are connected in series by means of switches after the expiry of the period. In a second embodiment, Fig. 4, a single source 13 is employed and power to motor 2 is controlled by a variable thyristor chopper 22 controlled by a variable pulse generator 28. The generator 28 is in turn controlled by a potentiometer 31 which is operated by a foot pedal, this pedal also closing contact 26 in its first portion of travel to operate contactor 23 to close the motor circuit. A negative feedback circuit comprising tachometer 15, 16 and frequency-to-voltage converter 32, threshold amplifier 36, gate 47 and load 48 is provided and whilst gate 47 is open the speed of the motor 2 is limited to e,g. ¢ of its maximum. Gate 47 is enabled by a signal on line 56 which is the output from flip-flop 53. When the flop-flip 53 is in its reset state the gate 47 is enabled and when in its set state it is disabled. The reset input of the flip-flop is controlled by AND gate 51 which is enabled by a signal on line 43, inverted at 50, indicating that the speed of the motor is below a particular threshold as established at 39, and by a pulse on line 49 indicating that the foot pedal has just been operated, whereas the set input of the flip-flop is controlled by AND gate 67 which is enabled when a signal on line 62, 68 indicates that timer 62 has completed its delay cycle and that a signal on line 66 indicates that a driver operable switch 65 has been closed. In operation with the motor at rest, the flip-flop 53 is reset at 52 by signals on line 49 and on line 43, the timer 62 also being reset by the signal at 43. The feedback loop is therefore included and the motor speed rises under its limitation. When the threshold at 39 is exceeded, the timer begins its cycle and at the end of this gate 60 is enabled by the signal at 63 and by the enabling signal to gate 47. If then the switch 65 is actuated, the flip-flop is set and the feedback loop removed from the circuit.
Patent GB-1478123-A (GB)
Title: Tomography
IPC: H05G1/26
Filed: 1973-08-18
Abstract: 1478123 Radiography EMI Ltd 29 July 1974 [18 Aug 1973] 39145/73 Heading H4F Apparatus, for examining in detail a selectable part of a slice of a body by X- or γ- radiation, which is of the type described in Specification 1,283,915, but employs a fanshaped spread of radiation and a plurality of detectors arranged to receive the radiation along respective beams in the spread, and data processing based upon the convolution technique described in Specification 1,471,531, wherein the amount of information provided individually by the radiation beams is a function of beam position in the fan shaped spread, i.e. the radiation beams as defined by collimators associated with the detectors are arranged to be closer together over that part of the slice for which a reconstruction of the distribution of absorption of radiation is desired. In an embodiment described a desired section of a patient's body 1 is located in the plane of X-radiation from a source 5 and the transmitted radiation detected by an array of detectors 18 (scintillation crystals and photomultipliers), the source 5 and detectors 18 being mounted on a frame 13 which is rotated around a central orbiting axis 30. The body 1 is located in a water bag 6 within a ring member 8 and is laterally adjustable by moving supporting platforms 2 and 3 so that the part 32, Figs. 2 and 5 of the body slice 31 is located about the orbiting axis 30 and thus in the central beam spread 33, 34 of the fan-shaped spread 35, 36; the number and thus density of detectors 43, Fig. 5, being greater in the central beam spread than in the side regions thereof, i.e. the part 32 is analysed by a greater number of more closely spread X- ray beams. Collimators (not shown) are located in front of the detectors to define the apertures thereof and thus the beam sizes, the detectors 43 being closely packed and having small collimator apertures whereas the detectors 44 are widely spaced and have small or large collimator apertures. The outer beams may have reduced intensity with the advantage of a reduction of the dose of X-rays to the patient. The photomultipliers of the detectors 43 are arranged in a staggered formation on alternate sides of the plane of the analysing X-ray beams (Fig. 6, not shown) due to their magnitude. To halve the number of detectors a gap of one beam width is left between each successive pair thereof and the X-ray source and the collimators for the scintillators are displaced between each 360 degree rotation thereof (Fig. 9, not shown). In an embodiment described there are five categories of detectors for detecting beams of increasing width from the centre of the fan-shaped spread.
Patent GB-1277032-A (GB)
Title: Cut crop threshing and separating assembly
Inventor: HERBSTHOFER FRANZ JOSEPH
IPC: A01F7/06
Filed: 1968-08-16
Abstract: 1277032 Thresher and separator in combine harvester MASSEY-FERGUSON GmbH 7 July 1969 [16 Aug 1968] 39221/68 Heading A1F A cut crop threshing and separating assembly comprises a rotary drum 25 carrying a helical beater 29 extending substantially throughout the length of the drum to shift material entering on a conveyor 11 axially along the drum. A concave 26 co-operates with the beater at an end portion adjacent the input conveyor 11 forming a threshing stage and a sieve 27 co-operates with the beater at the other portion of the drum to form a separating stage. Straw, being separated from any loose grain by the sieve 27, is discharged from the drum 25 by rotating blades 34 which throw the straw clear. There may be several helical beaters which may be of an angle of approximately 45‹ to the drum axis. The beaters may have ribs 29A the planes of which make an acute angle of about 75‹ to the drum axis facing in the same direction as the axial flow of the crop, and the gap between the concave 26 and the drum may be variable at both ends.
Patent GB-895506-A (GB)
Title: Improvements relating to hygrometers
Inventor: MCINROY JOHN
IPC: G01N25/70
Filed: 1958-12-08
Abstract: 895,506. Hygrometric apparatus; turbidometers. HYMATIC ENGINEERING CO. Ltd. Dec. 2, 1959 [Dec. 8, 1958], No. 39437/58. Class 97(3). [Also in Group XL(b)] A hygrometer for determining the dew point of high pressure gases comprises an observation chamber 1 illuminated by a lamp 9, a multi-stage restrictor valve 26 comprising a plurality of needle valves 29 through which the gas is passed to the chamber 1, and a valve 7 which, when opened, rapidly exhausts the chamber 1 so that any mist formed can be observed visually or by photo-electric means through a window, not shown. The valve 26 comprises a steel block having cavities 28 therein arranged in a circle, and interconnected in series by six adjustable needle valves 29. A pressure gauge 30 is connected to each cavity 28. The chamber 1 has inlet port 4, exhaust port 6 and a port 5 communicating with a pressure gauge. The lamp 9 is housed in a hollow transparent plastic cylinder 8 which is screwed into a wall of the chamber and has all its internal and external surfaces blackened except those 10, 11, forming a lens. On rotating valve 7 by lever 16, a microswitch 20 is operated to light the lamp 9 and the gas escapes through aligned ports 13, 14. A relief valve comprising a ball 17, spring 18 and adjusting screw 19, is provided in valve 7. The exhaust valve 7 may be opened at regular time intervals by electrical or mechanical means, and a photo-electric cell may be aligned with lamp 9 and chamber 1 so that reduced strength of signal indicates that mist has formed. Alternatively two photoelectric cells may be used one receiving light through the chamber and the other direct from the lamp, the two cells being in a bridge circuit.
Patent GB-891871-A (GB)
Title: Electric toasters
IPC: A47J37/08
Filed: 1959-11-21
Abstract: 891,871. Electric toasters; slicing bread. PUMMELL, D. S. Nov. 8, 1960 [Nov. 21, 1959], No. 39588/59. Classes 28 (1) and 28 (2). A loaf supported in a holder 6 by an adjustable ledge 7 is progressively sliced by a spiralshaped knife 8 rotated by an electric motor 3 and a rear lip 8A of which deposits the slices in succession on a grid 9 rotated by the motor 3 at one sixth of the knife speed so as to carry them between toasting heaters 10, 11 to where a deflector 12 ejects them via an outlet 13. There may be a variable-speed gear between the motor 3 and the members 8, 9, and/or a temperature control means in the apparatus, which may have glass-wool heat insulation. The top 4 may form a detachable guard. According to the Provisional Specification the heater 11 is gapped to provide an outlet.
Patent GB-1173472-A (GB)
Title: Chain and Flight Assembly for Self-Loading Scrapers
IPC: B65G65/00
Filed: 1967-08-30
Abstract: 1,173,472. Endless scraper conveyers. CATERPILLAR TRACTOR CO. 30 Aug., 1967 [28 Sept., 1966], No. 39733/67. Heading B8A. [Also in Division E1] A conveyer 10 is pivotably mounted at 11, 12 to the side walls 13, 14 of the bowl of a selfloading scraper. The conveyer comprises two roller chains 30 with transverse flight members 32 mounted on the chains by means of brackets 41, 42 which replace each third outer link 36 of the chains 30. Each flight member is formed of a base-plate 45 bolted to the brackets 41, 42 and secured to a face plate 46 having a U-shaped backing member 47. Substantially equal portions of the plate 46 are disposed on opposite sides of the centre line of the chains. To resist a tendency for the chain to kink in the portion immediately trailing the brackets 41, 42, a strip 50 is provided on the base-plate 45. Fig. 6 shows the scraper in use with a cutting edge 99. An hydraulic motor 22 drives sprockets 20, 21, the chains (not shown in Fig. 1) also engaging rollers 24-29 and 83).
Patent GB-1104434-A (GB)
Title: Circuit breakers with thermal and magnetic release mechanisms
IPC: H01H71/40
Filed: 1965-09-17
Abstract: 1,104,434. Automatic circuit breakers. STOTZ-KONTAKT G.m.b.H. 17 Sept., 1965 [17 Nov., 1964], No. 39802/65. Heading H1N. In an automatic circuit breaker the bimetal trip 2, the electromagnetic trip 3, the latch 6 and the latched member 5 are assembled upon a base-plate 1 as an independent structure which can be calibrated independently of the remainder of the breaker and before insertion into the breaker casing (Fig. 1, not shown). The release structure is coupled to the operating mechanism by a pivot pin 9. During calibration, by screw 12, a force is applied to the pivot 9 equivalent to the force which will be applied by the operating mechanism. The latch 6 may act as the armature of the electromagnet 3 or may carry a slug 16 (Fig. 3, not shown) moving within the coil. Alternatively a slug movable in the coil (Fig. 4, not shown) may act on the latch through a lost-motion connection.
Patent GB-1059066-A (GB)
Title: Improvements in or relating to apparatus for forming block bottom closures in the ends of flattened tubular bag elements formed of flexible sheet material
IPC: B31B29/00
Filed: 1965-09-20
Abstract: 1,059,066. Making block-bottom bags. NATRO CELLULOSA S.p.A. INDUSTRIA IMBALLAGGI CARTA. Sept. 20, 1965 [April 10, 1965], No. 39924/65. Addition to 1,015,104. Heading B5D. Reciprocating devices 7, 7<SP>1</SP>, Fig. 1, transfer bag elements from a feed station to the processing station of the parent Specification and from this station to a further station, by performing a plurality of strokes per working cycle of the machine, only one of which is used to transfer bag. elements. In the embodiment the grippers 7, 7<SP>1</SP> derive their motion from a rack 1 reciprocated through gearing 31 from a gear sector 30 oscillated, with a slow return motion, by a slider eccentric on a gear 29, rotating at a speed such that the rack 1 performs two reciprocating movements to each working cycle of the machine. As the rack I nears the end of its 'movement in the direction F, a spring 6 permits lost motion between the rack 1 and guide 5, carrying the gripping devices 7, 7<SP>1</SP>, to open the jaws of these devices. During the lost motion, a rack (23) on the rod 8, Fig. 3 (not shown), is driven through a pin- and-slot connection (25, 26) from the rack 1, and drives a rack (14) on one jaw (12) and gear (19) on the other jaw 17, to lower the one jaw (12) and rotate the other jaw (17) in a clockwise direction, opening the gripping device. Overcentre springs (21), Fig. 4 (not shown), hold the upper jaw (17) open until the end of the return travel of the guide 5 (in the direction F 1 ), when the rods 8, 8<SP>1</SP> reclose the jaws if the movable stop 10<SP>1</SP> is in its operative position. The device 7<SP>1</SP> transfers the bag elements from a feed station to the processing station and the device 7 then transfers the processed bag to a further station.
Patent GB-894323-A (GB)
Title: Improvements in textile napping machines
IPC: D06C11/00
Filed: 1959-11-26
Abstract: 894,323. Finishing fabrics. HOBE, C. M. VON, [trading as MONTFORTS A. [Firm of]]. Nov. 26, 1959 [Nov. 27, 1958], No. 40163/59. Class 42 (1). A textile napping machine worker roller has a core with teasing needles mounted thereon, the needles being capable of being readily deflected, in a direction tangential to the roller, in such a manner that a tangential (with respect to the roller) force of less than 10 grams applied to the needles at their points, sufficies to deflect the needles in said direction. In one embodiment (Fig. 1) teasing needles c are secured in an elastic layer b and an elastic bedding d such that they can be readily deflected in a direction opposite to that of rotation of the roller by forces which are below the tearing-point of the fibres to be napped. In Fig. 2 the needles c are pivotally mounted on axles f arranged concentrically around the roller core a. The density of the needles may be varied over the roller surface.
Patent GB-971884-A (GB)
Title: Improvements in or relating to moulded resistors
Inventor: CAMPBELL NEIL JOHN MONTGOMERY
IPC: C08L61/10
Filed: 1959-11-26
Abstract: Powder for moulding resistors consists of conductor material with an electrical conductivity lower than that of carbon, a thermosetting synthetic resin and a filler whose electrical conductivity is not appreciable.  The conducting material mentioned is a stable or metastable phase between titanium and oxygen with less than two atoms of oxygen per atom of titanium. It is prepared by heating TiO2 at 1300 DEG C. in a vacuum or in an atmosphere of hydrogen. Pellets 1/2 inch diameter and 3/8 inch thick heated for 30 minutes had a resistance of 100 ohms, and heated for 1 hour of 5 ohms. Heating TiO2 powder at 1,350 DEG C. for 3 hours gave a product which compacted to pellets with a resistance of 2,000 ohms.  The thermosetting resin mentioned is a phenolformaldehyde one.  Suitable fillers are silica and alumina.  The ingredients are mixed, dry pressed and heated to cure the resin, heating being, if desired, under pressure and/or with a suitable catalyst. Ends of metal-loaded plastic or metallic tags may be incorporated into the mouldings.
Patent GB-1425339-A (GB)
Title: Distillation of sea water
IPC: C02F1/04
Filed: 1973-08-24
Abstract: 1425339 Flash evaporation of sea water HITACHI LTD and BABCOCK HITACHI KK 24 Aug 1973 [28 Aug 1972] 40314/73 Heading B1B Formation of scale during distillation e.g. flash distillation of sea water is prevented by first contacting the sea water with sulphur oxide containing gas, and then oxidising and decarbonating the resultant solution, e.g. by blowing air through it. Thus sea water from 41 is sprayed in absorber 12 into upward moving sulphur oxide containing exhaust gas stream from boiler 11, the solution passes to oxidise/ decarbonator 52 where it is sprayed into an upward flowing air stream, then passes to deaerator 18 and finally to multistage flash evaporator 20/21. Member 25 is a steam turbine and member 24 a gas heater.
Patent GB-971151-A (GB)
Title: Improvements in or relating to the manufacture of tubes,pipes and the like
Inventor: SANDERS WILFRED
IPC: B21C37/12
Filed: 1959-11-27
Abstract: 971,151. Making helically seamed tubing. W. RICHARDSON & CO. Ltd. Nov.25, 1960 [Nov. 27, 1959; Feb. 20, 1960], Nos. 40390/59 and 6048/60. Headings B3A and B3E. Strip is coiled into tubular form by being fed against a member presenting only line contact with the strip and set at an angle across the direction of movement of the strip. Steel strip S is fed between upper and lower guides 12, 13, comprised of series of parallel bars, against a die-plate 10 by which the strip is deflected into helical form. The guide 12 may have or be replaced by rollers 19 and the guide 13 may be dispensed with. The die-plate 10 is adjustable angularly about its lower edge 15, the position of the guides 12, 13 being simultaneously adjusted. The die-plate 10 is also adjustable about a vertical axis on a turntable 11 and could also or instead be adjustable linearly in the direction Z. The die-plate may be faced with wood. One or more sizing rollers 18 may be provided mounted in adjustable frames or in the form of a chain around the formed strip. A further die or guide plate may be provided, set vertically and located above the plate 10, which is shortened, to be tangential to the coiled strip. The strip S may be guided at its edges, as it passes between the guides 12, 13, by rollers, those along one edge bing spring loaded. The abutting edges of the formed strip may be welded together. A tapered tube may be formed by moving the plate 10 during coiling.