baber/WOPTO huggingface dataset:
Patent GB-1513909-A (GB)
Title: Powder separation apparatus
IPC: B05B15/12
Filed: 1975-07-10
Abstract: 1513909 Separating solids from gas K ANDRASFALVY 10 July 1975 [12 July 1974] 28988/75 Heading BIT In an apparatus for separating powder from air the gas is sucked through openings 16 and channel 10 into section 2 and then through separator 8 comprising a plurality of sheets, to exhaust chamber 22 which contains a moveable nozzle arrangement for supplying compressed air to clean the separator 8. The channel 10 is sub divided by baffles (not shown) into compartments in each of which is located a valve such as 14a. The baffles extend down to sieve means 12 for classifying separated solids, there being means (not shown) for vibrating the sieve means.
Patent GB-780848-A (GB)
Title: Improvements in and relating to roofing tiles and the like
IPC: E04D1/16
Filed: 1953-10-20
Abstract: 780,848. Roofing tiles. McKNIGHT, D. Jan. 11, 1955 [Oct. 20, 1953], No. 28991/53. Class 87(1) In a. roofing tile provided along its side edges 3, 4 with rebates 7, 8 formed with main and subsidiary ribs 9, 11 and corresponding grooves 8, 12, interlocking between courses is effected by main and subsidiary ribs 15, 16 on the under face of the tile near its lower edge 6 and corresponding grooves 13, 14 on the upper face of the tile near its upper edge 5. The tile is provided with a hanging nib 17 and with a recess 18 in its under face.
Patent GB-1050809-A (GB)
IPC: B61C15/04
Filed: 1965-07-08
Abstract: 1,050,809. Suspended vehicles. ANGLOTRANSVAAL CONSOLIDATED INVESTMENT CO. Ltd. July 8, 1965 [July 10, 1964], No. 29030/65. Heading B7L. [Also in Division F2] A locomotive suspended from an overhead track 3, Fig. 3, comprises a rigid frame 2, pairs of running wheels 5 engaging the upper surfaces of the lower flanges 6, Fig. 2 (not shown), of the I-beam 4 forming the track and a wheel 16 vertically movable in the frame 2 to drivingly engage the lower surface of the I-beam and driven by a diesel engine 7, Fig. 1 (not shown), via a torque converter 9, coupling 10, reduction gearing 11, drive shaft 12 with universal joints 13 and a driven shaft 14, a support 23 for the wheel 16 being engaged by surfaces 24 of a shallow V in a draw-bar 20 slidable longitudinally of the frame 2 in either direction in guides 21, whereby the pressure applied by the drive wheel 16 to the track 3 is varied automatically with the load to be moved by the locomotive or when the brakes are applied. The draw-bar 20 is bifurcated between its ends 25 to engage supports 23 at both sides of the wheel 16. The supports are carried in bearing blocks 18 movable in guides 19 in the frame. The axles for the wheels 5 are swivelly mounted in the frame 2.
Patent GB-617385-A (GB)
Title: Hood for a drop-head coupe-type of motor-car
IPC: B60J7/185
Filed: 1946-09-28
Abstract: 617,385. Automatic catches. CARBODIES, Ltd., and ORR, J. H. Sept. 28, 1946. Nos. 29038 and 35008. [Class 44] [Also in Group XXXII] A forward hoop 12 of a coupÚ type folding hood is upright when erected and abuts at its lower. extremities, on opposite sides of the vehicle body, the door opening rear frame members 13, and is attached at 14 to pivoted arms 15 provided with locking elements 17 engaging with spring-loaded latches 21 sliding in brackets 22 mounted on frame members 13. Each of said latches 21 carries an abutment pin 36 engaged by a pivoting lever 37 operated by a handle 39 located either inside or outside the vehicle body. A resilient anti-rattle pad 42 may be provided and lever 37 may be operated by electrical, mechanical, pneumatic or hydraulic means (not shown) controlled by a remote control device (not shown) disposed either inside or outside the vehicle body. Specification 402,182, [Group XXXII], is referred to.
Patent GB-993315-A (GB)
Title: Improvements in means for controlling reversibly connected converter installations
IPC: H02M7/00
Filed: 1961-08-11
Abstract: 993,315. Converters. BROWN BOVERI & CO. Ltd. Aug. 11, 1961 [Aug. 13, 1960], No. 29115/61. Heading H2F. In a converting system comprising two vessels 3, 4 for two directions of current flow in load circuit P, N, vessels 3, 4 having negative grid bias voltage sources 12, 13 and grid control devices 16, 17 which cause one vessel to conduct by grid-voltage impulses whilst the other vessel remains blocked, on changing direction of load current, after the current has been controlled to zero the firing of the incoming vessel is made dependent upon the establishment of negative grid bias voltage in the outgoing vessel by means of voltage monitors 19, 20 in conjunction with switches for devices 16, 17. When vessel 3 is conducting, the connection between device 16 and vessel 3 is established through closed contact 21a (relay 21 being energized by load current through current transformer 6), closed contact 23a (relay 23 energized by master valve 18) and closed contacts 20a (relays 20 energized by negative grid voltage in vessel 4). At the same time device 17 is cut off from vessel 4 by contacts 19a, 23b, 22a, all open. On changing over, master valve 18 reduces the current in vessel 3 to zero (opening contact 21a) and changes over relay 23, opening contact 23a and closing contact 23b. When negative grid bias voltage is established on vessel 3, relays 19 are energized closing contacts 19a and connecting device 17 to vessel 4. Load current from vessel 4 closes contact 22a.
Patent GB-185989-A (GB)
Title: Improvements in and relating to electric batteries
IPC: H01M2/12
Filed: 1921-11-02
Abstract: 185,989. Three Star Accumulators, Ltd., and Kendall, C. Nov. 2, 1921. Gas exits. - A gas exit consists of a tube g open at both ends and depending within a larger tube d having a side opening e at its lower end. The tube g may be conical, and the lower end of the tube d is above the surface of the electrolyte in all positions of the cell.
Patent GB-983466-A (GB)
Title: Improvements in jet looms
IPC: D03D47/00
Filed: 1962-07-30
Abstract: 983,466. Jet looms. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. July 30,1962 [Aug. 1,1961], No. 29142/62. Heading D1E. In a loom in which the weft 12 is projected by an air jet through a comb-like guide which swings out of the shed before beat up, the gap 6 between the limbs 2, 3 of the guide blades is of angular shape to impede premature escape of the weft.
Patent GB-159027-A (GB)
Title: Improvements in or relating to desks
IPC: A47B17/03
Filed: 1919-11-22
Abstract: 159,027. Tapper, A. H., Turner, H. C. C., and Houghton-Butcher Manufacturing Co., Ltd. Nov. 22, 1919. Writing-desks.-In bureaus or desks provided with a fall front, a sliding platform 13 moving in guides 14 is adapted to be moved out to support a typewriter and held in position by the fall front 11. Rollers 15 in the base of the chamber 10 and rollers 25 in the front 11 assist the movement of the platform 13. Slides 18, Fig. 3, are also provided in the front 11 to act as book-rests &c.
Patent GB-1084889-A (GB)
Title: Improvements in recuperative arrangement for gas turbine powerplants
IPC: F02C7/08
Filed: 1965-07-09
Abstract: 1,084,889. Gas turbine plant. GENERAL ELECTRIC CO. July 9, 1965 [July 13, 1964], No. 29181/65. Heading F1G. [Also in Division F4] A gas turbine engine having a turbine 14 driving an axial-flow compressor 12 and a separate power turbine 16 has heat exchanger tubes 31 mounted in the annular exhaust passage 23 so as to pre-heat combustion air flowing from the compressor to the combustion chamber 13. The tubes 31 are supported by outer and inner toroidal compressed air headers 35, 36 respectively. Header 36 is rigidly supported by circumferentially spaced preheated air ducts 47 from a toroidal air casing 37 whilst header 35 is supported from header 36 by a flexible cylindrical member 50 restraining relative axial movement between the headers but allowing radial movement. Circumferentially spaced ducts 48, each including a flexible bellows 49, conduct unheated air from casing 37 to header 35 but do not support the header. The exhaust gases leave the pre-heater through a nozzle 22. Figs. 5, 6 (not shown) illustrate modified arrangements for supporting the outer header from the inner header, including respectively a flexible V-section annular member (72) and tie rods (84). In a further modification, Fig. 4 (not shown), a valve (61) is provided such that with the valve in the open position some of the exhaust gases by-pass the pre-heater and flow directly to an exhaust nozzle (64).
Patent GB-443507-A (GB)
Title: Improvements in or relating to hydraulic cartridges
IPC: E21C37/08
Filed: 1934-10-12
Abstract: 443,507. Breaking - down appliances for mines. GULLICK, Ltd., 3, King Street, Wigan, and SEAMAN, T., 153, Twentywell Lane, Dore, Sheffield. Oct. 12, 1934, No. 29198. [Class 68 (i)] Hydraulic means for breaking-down material in mines comprises a body 10 of part circular or oval section with one or more cylinders 16 each receiving a ram 17 and supplied with water through a port 19 ; a plate 13 is bolted to the body and has such form as substantially to complete the circular or oval section, the plate having openings 23 in which the rams are guided throughout their stroke. The ends of the plate have dovetails 14 engaging recesses in cheeks 12 on the body. The bolts 20 may be aligned or staggered and the openings 23 may be formed by bushes threaded &c. to the plate 13.
Patent GB-1086426-A (GB)
Title: Novel 4-chloro-3-sulphamoyl-benzene sulphonamides and their production
Inventor: WOLLWEBER HARTMUND
IPC: A61K31/18
Filed: 1966-06-29
Abstract: The invention comprises compounds of the formula <FORM:1086426/C2/1> wherein R represents a C1- 3 alkyl group, each of R1 and R11 represents a straight- or branched-chain C1- 4 alkyl group or such an alkyl group interrupted by an oxygen atom, or R1 and R11 are linked together to form an alicyclic ring, R111 represents a saturated or unsaturated C1- 6 hydrocarbon radical and n is 0 or 1, and their preparation by (a) condensing 4-chloro-3-sulphamoyl - benzene - sulphochloride of the formula <FORM:1086426/C2/2> with an amine of the formula <FORM:1086426/C2/3> or (b) by treating a sulphochloride of the formula <FORM:1086426/C2/4> with ammonia or with reagents which liberate ammonia, e.g. ammonium salts, or (c) by condensing a sulphonamide of the formula <FORM:1086426/C2/5> wherein X represents a reactive ester radical, with an alcohol of the formula HO-R111 in the presence of an acid binding agent.  Amines of the Formula III are prepared by reducing the corresponding acid amides with lithium aluminium hydride, the amides themselves being prepared by forming alkyl esters of the corresponding acids and reacting these esters with appropriate amines.  a -Methoxy-isobutyric acid is prepared by hydrolysis of tert.-2,2,2-trichlorobutanol with a solution of potassium hydroxide in methanol/water.  1 - Ethoxy - cyclopentane - carboxylic acid and a -ethoxy-a -methyl-butyric acid are similarly prepared.  Ethyl 3-methyl-3-ethoxy-butyrate is prepared by the addition of ethanol to b ,b -dimethyl-acrylic acid.
Patent GB-966126-A (GB)
Title: Frequency stabilisation apparatus
IPC: H03L7/04
Filed: 1962-07-30
Abstract: 966,126. Automatic temperature control. VARIAN ASSOCIATES. July 30,1962 [Aug. 7, 1961], No. 29209/62. Heading G3R. [Also in Divisions H1 and H3] An oscillator output is phase modulated by a pure sine wave derived from a pulse controlled square wave generator and after frequency multiplication and division to a fractional harmonic applied to vary the magnetic field in a cavity resonator and hence the intensity of a light beam passing through a light absorption cell in the resonator, so that detected light intensity variations, when compared in phase sense with the square wave generator modulator, produce an AFC output stabilizing the oscillator frequency. As shown an oscillator 77 is phase modulated at 82 by a sine wave derived through a filter 88 from a square wave generator 87 controlled by pulses from a sine wave low frequency oscillator 86. The phase modulated output is again multiplied at 83 and added to a fractional harmonic of the oscillator frequency produced by dividers and multipliers 79, 81 and a frequency changer 84 and the combined output applied to a voltage controlled frequency changing varactor diode also frequency multiplying by 57 so that the frequency input to the cavity resonator resonates with it and equals that of a hyperfine transition line of Ru 87 vapour in a cell 14 in the resonator (about 6834. 6 mc/s). This line frequency is finely adjusted to correspondence by adjusting the pressure of a buffer gas in the cell and by varying a longitudinal steady magnetic field produced by a coil 56. Ru 87 light from a lamp traverses the cell and its intensity variations detected by a photocell 16 and compared in a phase sensitive rectifier 92 with the phase sense of the square wave generator 87 to derive an AFC output stabilizing the oscillator frequency. Light from the lamp first passes through a Ru 85 filter cell 13 so that the absorption cell Ru87 vapour is optically pumped to balance an increased atom population in the S¢, F = 2 level, compared with the S¢, F = 1 level, and thus increased sensitivity as the microwave frequency produces a F = 2 to F = 1 transition. Heating coils 29, 38 surround the lamp and absorption cell 14 respectively and maintain them at constant different temperatures, and a vacuum cell 45 provides heat insulation. Further, an oven chamber 17 heated by coils 51, 52 surrounds the aluminium casing 17 of the assembly, and is enclosed by a magnetic cylindrical shield 60. A second harmonic indicator 94 shows if the apparatus is in frequency. Temperature control system. The currents to the heater coils 29, 38 are each controlled by a transistor emitter/collector path in series with the coils, the base voltage being controlled by a phase detector receiving oscillations directly from an oscillator and from a thermistor energized by the oscillator; and producing a phase shift dependent on its resistance and temperature. Specification 958,093 is referred to.
Patent GB-617012-A (GB)
Title: Improvements in or relating to plugs for plug-and-socket closures as fitted to wash-basins, baths, and sinks
IPC: A47K1/14
Filed: 1946-10-02
Abstract: 617,012. Waste plugs for baths &c. LAVER, E. E. Oct. 2, 1946. No. 29299. [Class 26] A waste plug B for wash-basins, baths or sinks is provided on its lower surface with a recess in which is secured a plate D provided at its outer edge with a series of depending projections A which are adapted to pass down into the radial spaces C formed in the usual grating or strainer in the waste pipe. These projections do not normally contact with the grating but if there is any tendency for the plug to be forced off its seating, the projections A engage the sides of the arms of the grating and prevent the movement of the plug.
Patent GB-1445615-A (GB)
Title: Foot-operated control device
IPC: H01H21/26
Filed: 1973-06-20
Abstract: 1445615 Actuation of switches & rheostats; electric motor control SIEMENS AG 20 June 1973 [26 June 1972] 29397/73 Headings H1N and HIS  A foot-control device, Fig. 1 as used for actuating dental apparatus comprises a housing 1 from which projects an actuating member 2 provided with foot application means 3 movable in a horizontal plane, a footplate 16 and three depressible actuating elements 4, 5, 6 for control elements such as a rheostat and electrical switches situated within the housing. As shown in Fig. 2 the actuating member 2 is T-shaped with the lines joining the extremities of the T forming a notional isosceles triangle. At the ends of the crossbar 9 are attached pivot pins 10, 11 which can slide in guideways 12, 13 and when the foot application means 3 is deflected against restoring action of a spring 16 to either side of its basic position represented by line 14 it describes a predetermined curved path away from the base line of the notional triangle as represented by lines radiused R 1  and R 2 . In another embodiment, Fig. 4, the pins and guides are replaced by V-shaped notched bearings 23 ... 26 of which the V-blocks can be fixed to the baseplate 28 as shown or provided in the ends of the T-crossbar but either arrangement enables the foot application means 21 of the actuating member 20 to be depressed downwards against the action of a common restoring spring 27 to operate a switch 31 when the member 20 is in its basic position. Also in the Fig. 4 embodiment the footplate 40 is hinged about an axis 45 to actuate a switch 48 by downward pressure. The remaining internal features shown in Fig. 4 also apply to Fig. 1 and comprise a rotary potentiometer rheostat 30 and further switches 43 and 44 actuated by a plate 33 of the actuating member when in an operating end position in which position it can be retained by permanent magnets 41, 42 acting on an armature 32. The potentiometer which is used for speed control of an electric motor drive is driven by a pin 36 attached to the actuating member acting in the slot of an arm 35 which is attached to the potentiometer pivot. Suitable functions for the other switches and control elements are described with reference to the drive for a dental drill. A further embodiment (Fig. 5, not shown) describes a pivotal bearing arrangement for the actuating member in the manner of a double-acting swing door hinge. Specifications 1,445,612, 1,445,613, 1,445,614 and 1,445,616 are referred to.
Patent GB-376586-A (GB)
Title: Improvements in or relating to methods of and apparatus for treating tacky material
IPC: B29B13/10
Filed: 1931-10-23
Abstract: 376,586. Cutting rubber. FIRESTONE TYRE & RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.- (Firestone Tire & Rubber Co. ; Akron, Ohio, U.S.A.) Oct. 23, 1931, No. 29499. [Class 5 (i).] Plastic rubber or like tacky material is fed by a screw 21, Fig. 2, to an extrusion head 22 with apertures 23 in its peripheral and end walls. Journalled on the head 22 are collars 24, 25 carrying knives rotated round the faces of the head by a motor 33 through a sprocket 28, to cut the rubber into pellets as it is extruded. Mounted on a bracket 38, Fig. 3, above the head 22 is a perforated receptacle 35 capable of swinging about a pivot 37, and having a plate 40 depending into the path of the knives 26, which on rotation deflect the receptacle into the position shown in dotted lines in the Figure, and on passing, allow it to fall back against a stop 39 causing a jar which shakes a dusting powder such as soapstone, from the receptacle on to the rubber being extruded. The dusted pellets fall into a hopper from which they are removed by a bucket elevator to a conveyer whence they are delivered to compounding &c. machines.
Patent GB-1362146-A (GB)
Title: Wrapping machines
IPC: B65B23/00
Filed: 1972-06-23
Abstract: 1362146 Wrapping up articles ROSE FORGROVE Ltd 5 June 1973 [23 June 1972] 29538/72 Heading B8C A method of wrapping up objects of irregular shape comprises forming by suction a bubble in a sheet of plastics film material while the remainder of the sheet remains untensioned, introducing an object to be wrapped into the bubble, tucking the tension-free edges of the sheet against the side of the object remote from the bubble and removing the suction to cause the bubble to collapse. As shown, a food product 10 in a tray 11 is fed to a position above an elevator 12 having collapsible ribs 13 by a conveyer 14. Film material 15 is drawn by a picker 16 across an apertured plate 18 and is severed by a wire 19. A suction box 21 is lowered over the material above the aperture and the material is sucked into the box 21 to form a bubble 23. The elevator is then raised to locate the product in the bubble and a first tucker 25 is moved to fold the material beneath the tray 11. The elevator then descends and two tuckers 26 are moved between the tucker 25 and the tray 11 to support the latter, the suction in the box is released and a pusher 27 pushes the object off the tuckers 26 over a tucker 29 and on to a discharge conveyer 28.
Patent GB-1316993-A (GB)
Title: Method of and apparatus for treating air to convert impurities
IPC: F24C14/02
Filed: 1970-06-18
Abstract: 1316993 Treating atmosphere in bakers' ovens DANFOSS AS 18 June 1970 [3 July 1969] 29610/70 Heading A2A [Also in Divisions B1 and F4] Air is treated to convert impurities by passing the air over platinum applied as a coating to the surface of an electrically heated element, which element incorporates electrically conductive beta silicon carbide and possibly silicon oxynitride. The use of the silicon nitride enables elements having a large surface area to be used while keeping the temperature of the catalyst at 200-300C. The treatment may take place by placing the element in a bakers oven or by use of the element in an airconditioning installation.
Patent GB-601639-A (GB)
Title: Slicing machines
IPC: B24B3/46
Filed: 1945-11-07
Abstract: 601,639. Sharpening rotary slicing knives. METCALFE IDEAL PRODUCTS, Ltd., and McMILLAN, J. Nov. 7, 1945, No. 29635. [Class 60] In a slicing machine of the type having a rotataMe knife 17, Fig. 1, the supporting frame 12 for the knife, or an adjacent part of the machine, has a knife-sharpening unit 19 pivotally mounted thereon at 18. The unit is held in the operative position, in which a sharpening wheel 21 engages the face 22 of the knife, by an over - set toggle device comprising a lever 42 pivoted to the frame 12 at 43 and connected to a bell-crank lever pivoted at 47 to the unit 19, one arm 46 thereof being held against a stop 49 by a spring 48. Anticlockwise movement of the arm 51 of the bellcrank lever allows the toggle to collapse and carry the unit 19 to its inoperative position. The unit 19 comprises a casting 24, Fig. 4, carrying shafts 28, 29 on the 'end of which are mounted sharpening wheels 21, 23 respectively, the latter wheel in the operative position being on the far side of the knife-edge out of engagement therewith but movable into engagement against a spring 39 to remove burrs. A further spring 39 urges the grinding wheel 21 into engagement with the knife. A cover 52 carried by the unit 19 encloses the latter in the machine casing 11 in the inoperative position a lip on the cover acting as a knife guard in both operative and inoperative positions.
Patent GB-298913-A (GB)
IPC: F21Y101/00
Filed: 1928-10-15
Abstract: 298,913. Lewy, H., and Flieg, H., (trading as Lewy Gloria-Werke, J.). Oct. 14, 1927, [Convention date]. Lantern screens.-An electric pocket lamp is provided with two or more coloured screens mounted on displaceable flaps d, e adapted to be moved into positions between the source of light b and a colourless lens c. The flaps d, e are mounted on hinges f and provided with operating levers g projecting outside the casing a. The lever g may have springy eyes for gripping a projecting flange or beading h on the casing a, so as to secure the flaps in position. The flaps may be disposed in different planes so that two or more of them may be inserted simultaneously into the path of the rays of light.
Patent GB-765787-A (GB)
Title: Improvements in or relating to apparatus for measuring torsional loads in a rotatingmagnetic body
Inventor: BLICK LEONARD WILLIAM
IPC: G01L3/10
Filed: 1953-10-28
Abstract: 765,787. Measuring torque electrically. BOULTON PAUL AIRCRAFT, Ltd. Dec. 31, 1954 [Oct. 28, 1953], No. 29788/53. Class 40 (1). Apparatus for measuring the torque transmitted by a magnetic shaft 3 comprises two axially aligned recording heads 1, 2 which mark the circumference of the shaft simultaneously with equispaced marks 5, 6 under no load, and then act as pick-up heads when the shaft is under load to feed the sequence of pulses produced by the marks into a phasesensitive circuit wherein the displacement between the two series of marks 5, 6 caused by the distortion of the shaft produces a signal indicative of the magnitude of the distortion and therefore of the torque. The shaft may be only coated with magnetic material.