baber/WOPTO huggingface dataset:
Patent GB-1496618-A (GB)
Title: Continuously monitoring ratiometer
IPC: G01J1/18
Filed: 1976-05-18
Abstract: 1496618 Spectrophotometer circuits PERKIN-ELMER CORP 18 May 1976 [19 May 1975]  20527/76 Heading G1A [Also in Division G4] A circuit for determining the ratio of two timevarying analogue signals comprises first and second integrators 18 which respectively receive the denominator and numerator signals via a chopper 16 for a pre-set integration period, the output of the first integrator being stored in a sample and hold circuit 28 and at the end of the integration period the contents of circuit 28 are applied to the input of the second integrator 20 and the time taken for the output of the second integrator to fall to its initial level is measured by a timer 32 to give a measure of the required ratio. This sequence of operations is repeated cyclically. Fig. 3 illustrates a more practical form of the circuit using operational amplifier circuits. The circuit is used in a spectrophotometer to compare the intensities of a reference beam and an attenuated beam, the beams being received alternately on a photo-electric detector via a beam switch driven by the same frequency generator 8 as the chopper 16.
Patent GB-1379998-A (GB)
Title: Bridge crane for negotiating corners
IPC: B66C9/04
Filed: 1972-05-03
Abstract: 1379998 Air cushion load supporting devices ALLMANNA SVENSKA ELEKTRISKA AB 3 May 1972 [4 May 1971] 20534/72 Heading B7K [Also in Division B8] A container bridge crane 6 comprises portals 15 carried by bogies 16, 17 running respectively on rails 5b, 5a. The bogies 16 are journalled about vertical shafts to negotiate a track curve and their wheels have flanges. The bogies 17 need not be pivotally mounted and their wheels need not be flanged. Air cushion devices 20 are detachably fitted to the bogies 17 and, at a corner 9 to be negotiated, pass over a painted concrete surface 21 where they are connected to a source of compressed air to provide the ground effect which takes the load off the wheels of the bogies 17 by lifting them from the rail 5a. As shown in Fig. 5, the air cushion units 20 may be permanently attached to the bogies, bogies 17 being pivotally mounted on pins 37 and provided with a folding butress 41a 41b A bridge crane fitted with air cushion devices on both its inner and outer bogies may be transferred between adjacent parallel tracks (51) (52) Fig. 7 (not shown), being connected to a guide pin (65) around which it can swing during the transfer.
Patent GB-579783-A (GB)
Title: Improvements relating to bladed rotors
IPC: F01D5/02
Filed: 1943-12-08
Abstract: 579,783. Turbine blades. ARMSTRONG SIDDELEY MOTORS, Ltd., and HEPPNER, F. A. M. Dec. 8, 1943, No. 20555. [Class 110 (iii)] The individual shrouding elements 23 of turbine blades have interengaging slots and projections with oppositely inclined edges to guard against relative radial or lateral movement. The. slot may comprise a narrow slot 25 cut in the floor of a broader slot 26, the slots being cut in oppositely inclined directions. The invention is shown in a two-tier blade ring, the blades of which are held by spiral ridges as described in Specification 571,439. Specification 579,784 also is referred to.
Patent GB-1371754-A (GB)
Title: Crank-case gasket
IPC: F16J15/10
Filed: 1973-04-30
Abstract: 1371754 Joint-making packing F J VAN DER VLUGT 30 April 1973 20556/73 Heading F2B  A crankcase gasket comprises flat strips 1 with bolt holes 3 and arched end pieces 2 formed as an integral unit from a resilient material which may be oil-resistant rubber or a synthetic resin. Preferably, the gasket is made by injection moulding.
Patent GB-1151182-A (GB)
Title: Method and apparatus for Crimping Electrical Connectors
IPC: H01R43/048
Filed: 1966-05-10
Abstract: 1,151,182. Jointing by stamping. DIAMOND DIE MOLD CO. 10 May, 1966 [24 May, 1965], No. 20588/66. Heading B3Q. [Also in Division H2] A press for crimping electrical connectors (18), Fig. 7 (not shown), to conductors (12), comprises two toggle mechanisms 66, 70, 76, 78 arranged for applying the crimping pressure gradually, rather than by impact. Drive for the first toggle 66, 70 is by a link 72 from a crank-pin 60, the links 70 being connected to the pivot pin 74 of toggle 76, 78 which is connected at one end to the ram 106 and at the other, adjustably, to the press-frame. The crank-pin 60 is driven, through gearing (26, 28, Fig. 4) and a one-revolution-clutch, by a motor (24). The clutch comprises a pin (38) biased by a spring (44) into one of the openings in a gear (28). A lever (50, Fig. 6) is raised by a solenoid (54) for engaging the clutch pin (38) and cams the pin out of the gear-opening at the end of a revolution, the pin stopping against a stop (56) on the lever (50). The solenoid is energizing momentarily by an operator or by discharge from a condenser. Feed mechanism.-This is operated by a cam 58 on the cam-shaft for feeding a connector when the ram is raised.
Patent GB-478517-A (GB)
Title: Improvements in electric cables
IPC: H01B7/18
Filed: 1936-07-25
Abstract: 478,517. Cables. BRITISH INSULATED CABLES, Ltd., and ALLEN, H. R. July 25, 1936, No. 20643. [Class 36] To prevent corrosion and electrolysis of the metal sheath 5 of a cable for use in damp stuations the sheath is surrounded by a seamless extruded covering 6 of non- metallic, waterproof and plastic material, such as the material known under the Registered Trade Mark "Pemax." The covering is formed with ribs 8 extending substantially parallel with the axis of the cable. Specifications 24590/01, [Class 70], and 318,361, [Class 36], are referred to.
Patent GB-732340-A (GB)
Title: Improvements in or relating to props
Inventor: BREIING THEODOR
IPC: E21D15/32
Filed: 1952-09-29
Abstract: 732,340. Pit-props. EGGEMANN, W., and CAMPENHAUSEN, E. VON., [trading as SCHWARZ KOMM.-GES., H.]. Sept. 29,' 1952, No. 20654/54. Divided out of 732,251. Class 20 (2). A telescopic prop comprises a clamp 12 fixed on the lower prop member 10 and adapted to be tightened on the upper member 11 by a claw 17 adapted to be moved over inclined surfaces on flanges 15, 16 of the clamp 12 by a wedge 20 moved transversely to the longitudinal axis of the prop, the claw 17 being moved parallel to the axis of the prop over flanges 15, 16 which increase in thickness downwards. The flanges 15, 16 also increase in thickness radially outwards to maintain the claw on the flanges. The wedge 20 is also used beneath the claw to release it. In a modification the claw 37, Fig. 7, is moved radially outwards of the prop over inclined surfaces of the flanges 35, 36 by a wedge 40.
Patent GB-275643-A (GB)
Title: Improvements in or relating to electrical phase and frequency changers
IPC: H02K47/30
Filed: 1927-08-05
Abstract: 275,643. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges,). Aug. 6, 1926, [Convention date]. Rotary transformers.-A cascade set for converting three-phase current of one frequency into singlephase current of another frequency comprises an asynchronous motor V, and a mechanically coupled synchronous machine H having a polyphase winding c and a single-phase winding d, the former being connected to the secondary winding b of the asynchronous machine, and the latter to the single-phase network n<2>. An example is given showing the distribution of energy when converting from a 50-cycle supply on the mains n1 to 16<2>/3 cycles on the mains n2. The rotor of the synchronous machine has a continuous-current exciting winding e, and preferably also a winding for damping the internal rotating field of doubled frequency which is produced.
Patent GB-1343801-A (GB)
Title: Digital resolvers
IPC: H02K3/26
Filed: 1971-04-19
Abstract: 1343801 Position encoders K MAECKER 19 April 1971 [31 Jan 1970] 20730/71 Heading G4H A position encoder for the numerical control of a machine tool comprises a pair of relatively rotatable discs for emitting two pulse trains Q1, Q2 phase displaced by 90 degrees to detect the direction of rotation of the encoder and a logic circuit which receives the pulse trains and produces an error signal whenever there is an additional pulse or a pulse missing from one of the pulse trains. A circuit K1 determines the direction of rotation of the encoder and is connected to a decode counter K2. The logic circuit includes inverters i1, i2, flip-flops f0, fl, f2 and NAND gates U1-U5, the gate U5 providing a logical "1" output signal whenever the pulse trains have a missing or an additional pulse. The fixed disc comprises a printed circuit board provided with coils the inductance of which is varied by conductive segments on the movable disc. Alternatively optical, magnetic or Hall effect devices may be used. In a modification the encoder provides an additional pair of phase displaced pulse trains which prevent an incorrect count being registered by supplying to the counter an additional pulse, for example, when a pulse is erroneously missing from the position indicating pulse trains.
Patent GB-939163-A (GB)
Title: Sheet film dispensing apparatus
IPC: G03B42/04
Filed: 1960-06-13
Abstract: 939,163. Feeding sheets. GEVAERT PHOTO-PRODUCTEN N.V. June 13, 1960 [June 11, 1959], No. 20738/60. Class 100 (1). Sensitized films 26 each protected by a wrapper 27 are separated sequentially from the top of a stack by apparatus which comprises elements 9 which buckle the top leaf of each wrapper to allow a plate 2 to enter below this leaf and above the film 26, and gripping means, comprising a rotating roller 1 co-operating with the plate 2, which grips the top leaf to draw the wrapper off the stack, also drawing the film with it, and thus dispensing the film in unwrapped condition. A frame 7, with a depending foot 7a, is carried by a pair of rods 17 which are slidably supported for vertical movements by pivoted levers 20 operated by cams 19 on a motor-driven shaft 18. The plate 2 and motordriven roller 1 are carried by a frame 3, mounted in the frame 7, which is reciprocated horizontally along the frame 7 by bell-crank levers 13 which are rocked by further cams on the shaft 18. Two rotatable bars 6, fixed to the frame 7, each carry a flexible buckling member 9; the bars, and hence the members 9, are rocked by the engagement of the inclined side edges of the frame 3 with projections 28 on the bars, to cause the wrapper top leaf to be buckled. In operation, the frame 7 is lowered so that the foot 7a and wipers 9 rest on the stack, the plate 2 and roller 1 are pushed forward causing the wipers to buckle the top wrapper 27 and allowing the plate 2 to enter the space below the top leaf, and the latter is gripped between the radiating roller and the plate and drawn off the stack, pulling the film sheet 26 from the stack. The wrapper is guided over the plate 2 and passes between driven delivery rollers 33, 34. The film 26 is dispensed in unwrapped condition under the plate 2, and is received in a passageway (not shown), or fed into a cassette as described in Specification 939,162. In a modification (Figs. 11-14, not shown), several stacks of wrapped films are supported one above the other on a rack so that a selected stack can be brought into operative position, and there is only one wiper or buckling member which is mounted on a spring-urged lever rocked by a cam-shaped side of the horizontally slidable plate which carries the roller 1. Specification 939,161 also is referred to.
Patent GB-970679-A (GB)
Title: Improvements in or relating to door catches
Inventor: ROBINSON GEORGE HENRY
IPC: E05C19/02
Filed: 1962-05-30
Abstract: 970,679. Catches. HYGENA Ltd. May 13, 1963 [May 30, 1962], No. 20738/62. Heading E2A. A door catch comprises a housing 10 adapted for fitting to a side of a door, or adjacent to the door opening with a spring-loaded detent 14 and locating pin 15 adapted to co-operate with a keeper 20 having a part 23 for displacing and becoming located behind the detent, an opening 24 engaging the pin when the door is closed. The locating pin and detent are moulded in one piece with a backplate formed with apertures for screws. The keeper consists of an angle piece formed with side gussets 21, one arm being apertured for receiving securing means.
Patent GB-459671-A (GB)
Title: Improvements in or relating to devices for the production of permanent hair waves
IPC: A45D4/12
Filed: 1935-07-22
Abstract: 459,671. Electrical hair - waving apparatus. THRIENE, E., 4, Jagerstrasse, Munich, Germany. July 22, 1935, No. 20831. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 21, 1936.] [Class 39 (iii)] An electrolytic heating device for use in permanent hair-waving comprises an inner metal foil electrode b and an absorbent layer c for the electrolyte enclosed in a perforated cellulose covering and surrounded on both sides by an outer electrode a, the sachet thus formed being adapted to be folded around a tress of hair z wound on a curler y. A contact plate provided with a pin f is provided for the inner electrode b, the plate being attached to a rubber sheet h and positioned between the cellulose covering and the electrode a. A slotted flexible contact plate n carrying a contact socket o is applied over the sachet in contact with the electrode a, and is covered by a rubber sheath q secured to the plate by a metal batten p: To eliminate the possibility of shocks to the person, the outer electrodes of all the devices in use on the head are connected together by a flexible uninsulated conductor engaging spring clips on the battens p. The conductor consists of a stranded copper core around which is a wire helix. Specifications 433,290 and 433,351 are referred to.
Patent GB-770010-A (GB)
Title: Improvements in or relating to ships
Inventor: LAMB JOHN
IPC: B63B27/14
Filed: 1953-07-27
Abstract: 770,010. Lifts on ships. ANGLO-SAXON PETROLEUM CO., Ltd. June 15, 1954 [July 27, 1953], No. 20845/53. Addition to 708,338. 'Class 78 (3). The invention of the parent Specification is modified in that the ship is provided with a pivotally mounted platform having guides for the wheels of the lift car which, when the car is in operation, contact the ship's side and a device for locking the car to the platform, which platform may be swung to a position in which it is in line with the side of the ship or in which one end is on the ship's deck. As shown, a platform 11 is pivoted at 14 to the ship's side and comprises a pair of guide rails 12. When the platform is rotated to deck level it is secured to the deck by locking means and a lift car is run on to the platform and a pair of hooked arms on the car engage a cross-bar on the platform. The car runs on two of its four wheels 9 and on a retractable castor wheel. The locking means on the deck is released and the platform is swung to the vertical position, being steadied by cable 22 attached to the platform and deck. The castor wheel is retracted and the platform is automatically secured by locking means 16. Suspension cables are attached to the car as described in Specification 770,009. The car is raised to release the hooked arms from the cross-bar and is then ready for operation.
Patent GB-745012-A (GB)
Title: The incorporation of inorganic additives into fuel oils
Inventor: CLIFFE JOHN OWEN
IPC: C09K23/00
Filed: 1953-07-28
Abstract: A dispersion of an inorganic colloid in a fuel oil is produced by mixing a hydrogel of an inorganic colloid with the fuel oil, separating the water from the mixture and mechanically working the gel/oil system until it is homogenous.  Colloids specified are silica and the oxides, hydroxides, carbonates and silicates of the polyvalent metals, e.g. magnesia, calcium oxide, zinc oxide, alumina. magnesium silicate, calcium silicate and aluminium silicate; metal sulphates and phosphates; bentonite clays, kaolinite, magnesium montmorillonites, e.g. hectorite and Wyoming montmorillonites; and synthetic zeolites, such as that formed from sodium silicate and sodium aluminate.  The preparation of the dispersion may also be carried out in the presence of a surface-active agent, which may be a cationic. anionic or non-ionic compound.  Compounds referred to are amine compounds having at least 8 carbon atoms, e.g. quaternary ammonium compounds, alkylamines and their salts and cyclic amines; partial amides of alkylene diamines or of polyalkylene polyamines or salts thereof; complex polyamine compounds; oil-soluble soaps of carboxylic and organic sulphonic acids; oilsoluble organic acids having at least 12 carbon atoms, e.g. carboxylic, sulphinic and sulphonic acids; and oil-soluble hydroxyl-containing organic compounds, e.g. hydroxy fatty acids, olefinic glycols, partially hydrolysed glycerides and monohydric alcohols containing at least 8 carbon atoms.  Examples of the above types of compounds are given. The fuel oil may be a residual petroleum fuel oil, partcularly one which forms an ash containing a major proportion of vanadium and/or sodium, or a mixture of the residual oils with distilled or cracked hydrocarbon fuel oils.  The mechanical working may be effected by stirring the mixture, milling, shearing, for example by passing through a colloid or paint mill, or subjecting the mixture to supersonic sound.  In one example, a silica hydrogel is prepared by addition of dilute sodium silicate solution to sulphuric acid until the product has a pH of 6.3, ageing the hydrogel so formed and washing with water; the hydrogel is added to fuel oil, stirred, and the mixture milled by passing through a Bosch pump capillary; the water is evaporated off and the mixture passed through a paint mill to form a fuel concentrate which is diluted with fuel oil to form a homogenous fuel composition.
Patent GB-1308429-A (GB)
Title: Teleprinter receiver systems
IPC: H04L25/45
Filed: 1971-04-19
Abstract: 1308429 Teleprinters SIEMENS AG 19 April 1971 [5 Feb 1970] 21027/71 Heading H4P In a teleprinter receiver where multi-element start/stop character signals are fed into register stages K5-KAn for transfer to print units A5 to A1, the input to the register is blocked by gate G2 between calls to the teleprinter. At the termination of a call the line assumes start polarity (0), presenting a 1 at output E<SP>1</SP> of bi-stable K11, and also the last register stage KSp has been set as a result of the end-ofmessage signal. Gate G1 accordingly opens so switching bi-stable K12 to output Q(0) which blocks gate G2. During message reception gate G2 passes the signals with inversion because of the inversion by K11. At the start of another call the change from stop polarity, the calling signal, to the start polarity of the first signal causes K11 to switch to E<SP>1</SP>(1) so switching K12 back to Q(1) and once more opening gate G2.
Patent GB-925193-A (GB)
Title: Mechanical filter
IPC: H03H9/50
Filed: 1959-06-18
Abstract: 925,193. Mechanical filters. SOC. AL8ACIENNE DE CONSTRUCTIONS MECANIQUE. June 18, 1959 [July 9, 1958], No. 21035/59. Class 40 (8). A mechanical filter system, consisting of two filters of the second order, comprises a gear train 7 between an input shaft 1 to be filtered and a parallel secondary shaft 1<SP>1</SP>, an elastic coupling 2, 3 in the shaft 1 to be filtered, an elastic coupling 2<SP>1</SP>, 3<SP>1</SP> in the secondary shaft 1<SP>1</SP>, hydraulic damping devices 4, 4<SP>1</SP>, and inertia fly-wheel devices 6, 6<SP>1</SP> mounted on extended portions of the shafts 1 and 1<SP>1</SP>, and a differential device 8 for combining the outputs from the devices 6, 6<SP>1</SP>, the output shaft 5 of the differential device 8 constituting a filtered shaft. Graphs are shown showing the comparison of the above filter system with a filter system comprising three filters of the first order, in which the inertia fly-wheels are omitted, as regards frequency against modulus response and phase shift or delay with respect to a sine-shaped component.
Patent GB-972731-A (GB)
Title: Improvements in or relating to artery clamps
IPC: A61B17/122
Filed: 1962-05-31
Abstract: 972,731. Artery clamps. M. GERENDAS. May 31, 1962 [May 31, 1961], No. 21082/62. Heading A5R. An artery clamp made of a protein base plastic material absorbable in the body, e.g. fibrin, comprises two members 1, 2, one having spaced arrow-shaped projections 3 which pass through spaced apertures 6 in the other member to close the clamp about an artery or vein 5. The clamp may comprise a single member with an arrowshaped projection at one end which is passed through an aperture at the other end when the member is folded about an artery or vein.
Patent GB-1093648-A (GB)
Title: Photograph pickup apparatus
IPC: G11B3/085
Filed: 1965-05-18
Abstract: 1,093,648. Traversing arrangements for pickup arms. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd, May 18, 1965 [May 19, 1964; May 20, 1964; June 1, 1964; Sept. 17, 1964; Nov. 20, 1964; Dec. 14, 1964 (2); April 6, 1965], No. 21089/65. Heading G5R. In order to move the pick-up head 10 in a radial path P across a record, the tone arm 11 is pivotally mounted for movement about a vertical axis D on a bracket 14 which is movable horizontally in a direction BC above a cylinder 16 rotated by the turntable by means of a belt 37. A roller 66, Fig. 3 (not shown), rotatable about an axis perpendicular to the axis E of the tone arm, is mounted on the bracket 14 so as to be driven by the cylinder 16, Fig. 2 (not shown). Any inclination of the axis of the tone arm with respect to the path P, e.g. to position F, causes a corresponding inclination of the roller 66 with respect to thb cylinder, so that the bracket is driven in the direction B until the tone arm is again perpendicular to the path P, e.g. at 11a. Transmission of vibrations to the head is minimized by the use of small steel balls in the bearings of the various moving parts.
Patent GB-200716-A (GB)
Title: Improvements in and relating to brackets for railway signal lamps
IPC: B61L5/18
Filed: 1922-08-02
Abstract: 200,716. Pidduck, H. A., and Whillock, S. A. Aug. 2, 1922. Brackets, lamp.-A bracket for railway signal lamps comprises an L-shaped member, the vertical portion a of which is provided with slots d for the bolts which secure it to the signal post b, the slots being so disposed that the bracket mav be tilted to suit various gradients. The horizontal portion a<1> of the bracket is provided with longitudinal slots a<2> to enable the lamp bolted thereto to be moved towards or away from the post. Specification 196,218, [Class 75 (iv), Lamps &c., Kinds &c. of], is referred to.
Patent GB-617502-A (GB)
Title: Improvements in or relating to the treatment of yeast and fermentation of beer
IPC: C12N1/16
Filed: 1944-10-30
Abstract: 617,502. Yeast. ALUMINIUM PLANT & VESSEL CO., Ltd., MORITZ, F. E. B., and PAINE, S. W. T. Oct. 30, 1944, No. 21112. [Class 14 (ii)] For restoring the fermentative vigour of yeast used in the fermentation of wort to beer by the single open vessel, the dropping or the Yorkshire system preparatory to re-using the yeast in one of these systems, the yeast, together with some wort and beer, but excluding the hop resins and first dirty heads, is placed in a closed apparatus comprising a barm vessel d, a fermentation vessel a at a lower level, a swan-neck pipe c connecting the top of a with the top of d, and a pipe e, in which is a flow control cock f, connecting the bottom of d with the bottom of a. The wort, beer and yeast mixture is carried up the pipe c by the carbon dioxide evolved, and so circulates in the apparatus, the yeast collecting in the vessel d.