baber/WOPTO huggingface dataset:
Patent GB-816765-A (GB)
Title: Steam power plants
IPC: F01K3/22
Filed: 1957-11-06
Abstract: 816,765. Forced-flow steam boilers. SULZER FRERES S. A. Nov. 6, 1957 [Nov. 22, 1956], No. 34640/57. Class 123(2) In a steam power plant comprising a once-through boiler 1 having an economizer 8, an evaporating section 9 and a superheater 12 supplying steam to a turbine having two stages 2, 3 between which is a reheater 5 and from which the exhaust steam flows into a condenser 6 whence condensate is pumped into a feed water tank 19 from which a feed pump 7 returns the water to the economizer, salts removal from the working medium is achieved without much loss of thermal efficiency by providing for multiple stage evaporation of the water withdrawn from the system with return of heat from each evaporation stage to an appropriate point in the system. Under normal working conditions wet steam from the evaporator 9 flows into a separator 10 in which a low level of separated water is maintained by a measuring device 23 which controls a water outlet valve 22, the device being set so that about 4 per cent of the working medium flows through the valve and via a line 20 to a second separator 21. In the separator 21, which is at a lower pressure, steam is evolved and flows through a pipe 30 to the reheater inlet. Water, representing about 2.5 per cent of the working medium flow passes through a valve 31 controlled by a low level measuring device 34 and through a pipe 32 to a lower pressure separator 33 where the final stage evaporation occurs, steam passing through a line 41 to the tank 19 whilst water, representing about 0.5 to 1.0 per cent of the working medium flow and containing dissolved salts, passes to a total salts removal plant through an orifice plate 42. The arrangement also provides for the withdrawal of the large amounts of water from the boiler which is necessary when starting up or during no-load operation. For this purpose, valves 27, 38 of larger diameter than the valves 22, 31 are provided in pipes 37, 26 respectively branching from the separator outlet pipes 20, 32. The valves 27, 38 are respectively controlled by measuring devices 28, 39 to maintain a high level in the separators 10, 21. The pipes 37, 26 unite in a common connection to a cooler 26a whence steam and water flow to the condenser 6. In a modification, the invention, which is described above in its application to a boiler operating at sub-critical pressure, is applied to a boiler designed for operation at supercritical pressure, the amount of working medium withdrawn from the tube system being regulated in dependence on the temperature of the medium at an appropriate point instead of the height of a water level.
Patent GB-416225-A (GB)
Title: Improvements in or relating to shirt cuffs
IPC: A41B7/10
Filed: 1933-12-08
Abstract: 416,225. Shirt cuffs. MIMEREL, P., Sanary-sur-Mer, Var, France. Dec. 8, 1933, No. 34646. Convention date, Feb. 21. [Class 141.] Shirt cuffs are made with a main cuff section provided with a hinged flap b, Fig. 5, in the form of a half cuff section capable of being pivoted about an axis longitudinal of the sleeve and midway between the ends of the main cuff so as to present thereby different surfaces for exposure. The main cuff is permanently sewn as indicated in Fig. 6 and the outer layers a<1>, a<2> of one half of it are continued in the layers b<1>, b<2> of the half cuff and the outer layers a<3>, a4 of the other half in corresponding layers b<3>, b4 of the half cuff. The arrangement allows of the provision of four instead of six button holes.
Patent GB-1370770-A (GB)
Title: Electronic velocimeter
IPC: G01P3/44
Filed: 1973-07-20
Abstract: 1370770 Measuring speed electrically CINCINNATI MILACRON Inc 20 July 1973 [23 Aug 1972] 34648/73 Heading G1W In apparatus for producing an output signal representing the velocity of a movable element, a transducer 18 connected to the movable element 10 is adapted to vary the frequency of a carrier signal by an amount representing the velocity of the element, a phase detection circuit 29 being responsive to the varied frequency signal and to phase detection pulses to provide an error signal controlling the frequency of a variable frequency oscillator 32 from which the phase detection pulses are derived by means of a frequency division and count down circuit 30, so that the output of the oscillator 32 is a signal in a higher frequency range than the carrier signal and of which the frequency varies by an amount representing the velocity of the element, the output of the oscillator 32 being mixed at 35 with a reference frequency signal to form a difference frequency signal constituting said output signal and of which the percentage variation in frequency for a given change in velocity is greater than the percentage variation of the carrier frequency. As shown, the transducer 18 has multiple phase input coils fed from a drive circuit 20, and an output coil in mechanical communication with the movable element and free to move with respect to the input coils. Thus the phase relationship with respect to the input coils changes as the movable element changes. The reference frequency signal for the mixer 35 is derived from the drive circuit 20 and the output of the mixer is applied to a converter 16 which provides a D. C. output having an amplitude and polarity representing the speed and direction of movement of the element.
Patent GB-364257-A (GB)
Title: Improvements in and relating to fluid compressors
IPC: B60K25/00
Filed: 1930-11-18
Abstract: 364,257. Splash lubricating. HERZMARK, N., 44, Rue Vitruve, Paris. Nov. 18, 1930, No. 34726. [Class 12 (iii).] A frame k<3> secured to the crosshead of a compresser carries a dipper k<4> which enters a recess in the oil sump formed by the bottom of the casing and splashes oil so that it is carried with the air into the cylinder where it cools the air and diminishes clearance. The oil is carried on into the bottom of the receiver i<4>. When the receiver pressure rises sufficiently, oil is forced back through the pipe i<3> into the cylinder head where it forces the mushroom valve j down allowing the air to circulate idly through passages d<1>, d<2> between the cylinder and chamber c. A needle valve d<7> returns surplus oil to the sump. The piston is formed with gutters f<4>, Fig. 5, which scrape the oil into .beads which.form a packing.
Patent GB-801149-A (GB)
Title: Improvements in or relating to nozzles, more particularly for fire extinguishing apparatus
IPC: A62C31/00
Filed: 1955-12-05
Abstract: 801,149. Fire-extinguishing. LAMBERT, M., and LACKS, H. Dec. 5, 1955 [Dec. 6, 1954], No. 34834/55. Class 47 [Also in Group XXIX] A foam discharge nozzle for fire extinguishing has a tapering section 14b with doors 17 each of which pivots, by means of a block 18, on a rod 15 fixed to the nozzle. A conical screen 24 is fastened to a cage 24a and surrounds the tapering section. With the doors closed the foam entering the nozzle at 14a is ejected in a longrange stream from the outlet 14c. With the doors open a part of the foam leaves the section 14b and passes through the screen to provide a cone-shaped stream for close-range use. In order to open or close all the doors simultaneously each door has a lever 20 which engages a fork 21 secured to a rotatable ring 22. By turning the ring by handles 25 all the doors are opened or closed, and the ring and doors are held in any one of a number of positions by a spring catch 26 which engages one of a number of slots 27 in the ring. Rubber gasket strips may be secured to the door edges. In a modification each door is hinged to the tapering section-of the nozzle at one side of its opening and opens inwardly. In Figs. 11 and 12 the nozzle has two opposed openings 71 and a pair of doors 73 pivoted on transverse axes 74. Interengaging sector gears 77 are mounted on the axes so that both doors are opened or closed simultaneously. A conical cowl and screen 79 and 80 respectively are provided, and the doors are operated by a lever 81 which is held in one of a number of positions within a slot in a guide plate 82 by a spring- loaded locking pin 83.
Patent GB-1537108-A (GB)
Title: Cell racks for holding electric cells
IPC: H01M50/262
Filed: 1976-08-20
Abstract: 1537108 Racks for holding battery cells CHLORIDE GROUP Ltd 16 Aug 1977 [20 Aug 1976] 34842/76 Heading H1B The cells of a battery are held together between end plates 2 and spacer elements 4 by upper and lower rods 10, 8. The plates and elements have lower flat projecting surfaces for holding the cells, and upper projecting surfaces for preventing lateral movement. The end plates may have handles 36.
Patent GB-448673-A (GB)
Title: Improvements in or relating to electric switches, and more particularly though not exclusively to electric switches of the door-operated type
IPC: H01H13/02
Filed: 1935-12-16
Abstract: 448,673. Press - button retractive switches. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Meuer, G. J. ; 12th Street, Milwaukee, Wisconsin, U.S.A.) Dec. 16, 1935, No. 34844. Convention date, Dec. 24, 1934. [Class 38 (v)] A press-button switch suitable for operation by a door of a refrigerator comprises a hollow insulating base 10 in which is slidably mounted an insulating plunger 13 biassed in an upward direction by a spring 16. A pair of contact plates 27 fit into grooves on the inside of the base and have projecting ends 27a for attachment of lead wires. A bridging conductor 20 loosely carried in a bore in plunger 13 normally rests against the upper ends of apertures 22 in the contact plates 27 to complete the circuit. When the plunger 13 is pushed in the circuit is broken. In a modification, the contact plates are cut away at their upper ends and contact is made when the plunger is depressed.
Patent GB-1538143-A (GB)
Title: Cuvette and method for use
IPC: G01N33/48
Filed: 1976-08-20
Abstract: A multichamber cuvette for maintaining in independent and separate condition at least two reactants until such time that it is desired to mix them for reaction with each other and a reactant liquid sample while in the cuvette for analysis in the cuvette, and a method of use of such cuvette. There is provided a cuvette body of a suitable plastic defining at least two chambers interconnected by a passageway of relatively small cross section having at least the end portions thereof of capillary size to prevent under many circumstances, as by surface tension, accidental mixture of liquid reactants in the chambers. If there is a substantial head of liquid in one chamber and/or a risk of impact of the cuvette with an external foreign object, sufficient to break such surface tension, an air lock in the passageway when the latter is below the liquid levels in the chambers prevents such accidental mixture. A baffle in the passageway enhances separation of liquids and/or solid substances in the chambers. The chambers are open-topped, and a unitary probe-wiping multi-ply laminated cover of a type puncturable by a probe extends over the chambers closing them from the external environment. The laminated cover tends to be self-closing with reference to such punctures. One ply is of metal foil to act as a vapor seal and has an undercoating of a heat sealable material compatible with the body material and sealed thereto. The top ply is of a moisture-absorbent material which is secured to the foil ply by an intermediate plastic ply.
Patent GB-951248-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/12
Filed: 1960-10-12
Abstract: 951,248. Photographic cameras. KODAK Ltd. Oct. 12, 1960 [Oct. 12, 1959], No. 34959/60. Heading G2A. In a photographic camera having a focusing type objective and a photo-electric device responsive to scene brightness, the focus of the objective is adjusted automatically by the photo-electric device as a function of scene brightness. As shown a lens focusing ring 50, exposure time setting ring 22 and diaphragm aperture setting ring 58 are all coupled together for common setting movement. Normally the setting ring is held in an end position corresponding to minimum aperture and exposure time by means of a lever 64 which is pivoted at 65 and engages an arm 60 under loading of a strong spring 66. On depression of a body release 72, coupled to the lever 64 by means of a pin and slot connection 70, 68, the setting rings rotate in an anti-clockwise direction under loading of a weak spring 62 until a stepped cam element 48 is arrested in a position determined-according to the ambient light level-by the pointer 18 of an exposure meter galvanometer 14, a fixed abutment surface 74 being provided against which the pointer is pressed. The adjustment of the lens focus is so arranged relative to the adjustment of the diaphragm that the near limit of the depth of focus is maintained substantially constant at about 4 feet, whilst the far limit moves from infinity towards the near limit as the diaphragm aperture is increased.
Patent GB-1449790-A (GB)
Title: Adhesive tapes
IPC: D03D15/56
Filed: 1975-08-22
Abstract: 1449790 Adhesive tapes KENDALL CO 22 Aug 1975 [26 Aug 1974] 35016/75 Heading B2E [Also in Division Dl] An adhesive tape consists of a pressure sensitive adhesive coated on one side of a woven fabric comprising elastic warp yarns including elastomeric filaments and interspersed with non-elastomeric warp yarns which include multiple filament nylon yarns having a denier per filament of 2¢ to 5¢, each elastic warp yarn being floated on one side of the fabric across a plurality of filling yarns, the coating being carried out when the elastic yarns are stretched. Each nylon yarn is preferably adjacent no more than one non-elastomeric yarn of another material (e.g. cotton), and adjacent nylon yarns have opposite weave patterns. The elastic yarns may be distributed as every seventh warp yarn to every thirteenth warp yarn. Fill yarns are preferably cotton. The adhesive may be applied by calendering, or by transfer foam a polyethylene film or a silicone-coated sheet using pressure.
Patent GB-175824-A (GB)
Title: Improvements in and relating to trawling gear for deep sea fishing
IPC: A01K73/045
Filed: 1920-12-14
Abstract: 175,824. Vigneron, J. B. J. A. Dec. 14, 1920. Trawling-gear.-In a trawling-gear, the width of opening of a " filet de boeuf " or like net is maintained by two otter-boards c, d, which are connected by cables f, g, to a single boat or to a cable from the boat and to the net by cables a, b, of relatively great length. The boards are adjustably arranged for operating on the sea bottom or in a submerged floating condition. Each board is provided with two perforated metal bands A, B, and a series of holes C for adjusting in position a bolt D, to which is pivoted a rod E, the other end of which is adjustably connected by a bolt F to a pivotally mounted member G. Each board is weighted by a metal mass I and is connected to the boat by a cable attached to a shackle H and to the net bv a cable connected to a short rope, the ends of which are attached to two rings K on the outer face of the board. The separation of the boards is adjusted by displacing the bolt D, and their depth is adjusted by moving the bolt F along the member G. The boards may be provided with three holes directly above the ordinary weighting-band for the attachment of metal weighting-bands by means of nuts and bolts. For bottom fishing, each cable from the boat may be attached by a loose ring to a second loose ring connecting two triangular bridles attached to a board. The net may be connected directly to the boat by cables, which pass through two pulleys or the like mounted on each board, one of which mav be attached to the rear end of the board and the other to the ring connecting the towing-bridles. Wooden sectors are provided for indicating the distance between the boards for each length of cable paid out when the angle between the cables from the boat is equal to the angle of the sector. Dimensions of the boards and examples of the lengths of the cables are given.
Patent GB-410886-A (GB)
Title: Improvements in or relating to burners for oil lamps
IPC: F23D3/00
Filed: 1934-01-11
Abstract: 410,886. Wick burners. SCANLAN, J., Albert Lamp Works, Bracebridge Street, Birmingham. Jan. 11, 1934, No. 35109/32. [Class 75 (i).] In order to steady the flame of a wick burner a tube 1 surrounding the wick is detachably secured to a depending tubular flange 2 on the burner and has its lower end closed by a perforated cap 3 which is grooved to engage a groove rolled in the tube.
Patent GB-1281231-A (GB)
Title: Working head for wigs
Inventor: KUNZMANN JOSEF
IPC: A45D44/14
Filed: 1969-07-11
Abstract: 1281231 Hairdressers' blocks J KUNZMANN 11 July 1969 [12 July 1968] 35118/69 Heading A4V A rigid hollow working head for wigs is moulded from rubber or rubber-like material. Ribs are formed inside the head for additional rigidity. The skull of the head may be covered with a detachable or fixed cover portion made of rubber or rubberlike material.
Patent GB-1523785-A (GB)
Title: Vehicle with occupant restraint system
IPC: B60R22/26
Filed: 1975-08-26
Abstract: 1523785 Safety belts REPA FEINSTANZWERK GmbH 26 Aug 1975 [26 Aug 1974] 35169/75 Heading A3V A vehicle seat is mounted on guide rails 2, 3, 4. End 7 of a seat belt is substantially non-yieldably attached to a vehicle. Tongue 7 is inserted in a lock 6 mounted at a fixed location in the vehicle. Belt 9 passes around rollers 11, 12 to be coupled to an automatic reel 14 attached to the vehicle. In the event of deceleration above a predetermined rate, a pin (15) shears and the seat slides forward, thus in effect tightening the belt about the wearer.
Patent GB-800373-A (GB)
Title: Improvements relating to flexible tubing
IPC: F16L11/115
Filed: 1955-03-08
Abstract: 800,373. Flexible hose. HOOVER, Ltd. March 8, 1955 [March 10, 1954; Oct. 4, 1954], No. 35196/56. Divided out of 800,371. Class 99(2). In a flexible extensible hose comprising a deeply corrugated tube 10 of resilient material formed with inwardly and outwardly opening helical corrugations 14, 15, the former containing a resilient helical reinforcing coil 11, e.g. of steel or aluminium wire 12 coated with an extruded vinyl chloride 13, the tube consists solely of a thin elastomeric material, e.g. a vinyl chloride, and the coil is so pretensioned in relation to the thickness of the tube and the depth of the corrugations that in the normal relaxed condition the outwardly opening corrugation forms a substantially closed loop, the width of the gap between adjacent convolutions of the coil being less than the maximum width thereof at a greater depth in the trough of the corrugation. The method of and apparatus for making the hose is as described in Specification 800,374, Specifications 673,043 and 800,372 also are referred to.
Patent GB-1026084-A (GB)
Title: Improvements in and relating to fertilizer compositions containing ammonium nitrate
Inventor: GOW JOHN STOBIE
IPC: C05G3/00
Filed: 1963-09-06
Abstract: A fertilizer composition containing ammonium nitrate is rendered free-flowing and non-caking by coating the granules with less than 3% by weight on the average, taken over 1000 tons of fertilizer, of a composition comprising china clay having incorporated therein up to 3.5%, preferably not more than 2% of its weight of an aliphatic amine having from 14-25 C atoms in the molecule.  The preferred clays are Chyno No. 3 or Gyd-dis clay and the preferred amine is octadecylamine.  The preferred fertilizers contain 10 to 90% by weight of ammonium nitrate.  The coating is accomplished by adding up to 3% by weight, preferably more than 1% by weight of the clay containing the specified amount of the desired amine to the granules of the fertilizer composition and mixing well, e.g. for 5-15 minutes in an edge runner mill to obtain the coated granules.  The fertilizer granules may be first coated with lubricating or fuel oil before being coated with the amine-clay composition.
Patent GB-464218-A (GB)
Title: Improvements in or relating to means for teaching and practising typewriting
IPC: G09B13/02
Filed: 1935-12-20
Abstract: 464,218. Typewriters. BROWNJOHN, J. H. Dec. 20, 1935, No. 35328. [Class 100 (iv)] Practising - keyboards.-The keys are connected to bars or levers provided with typecharacters which are visible through apertures in an indicator when the corresponding keys are depressed. The keyboard shown in the Figure comprises a casing 1 provided with rods 9 supporting bell-cranks 8 provided at the front with blank keys 7, and at the top with detachable heads 8<e> bearing upper and lower case type-characters 13. The type-characters may be embossed in the heads, or may be printed on labels which are stuck on the heads. The bell-cranks are guided by rods 11 and a slotted plate 22 and are associated with returning-springs, some of these being attached to the bell-cranks, and others to the back of the casing. The keys are blank, the groups of keys allotted to different fingers being differently coloured. An indicating- plate 15, supported in inclined position on the top of the casing, is formed with apertures 15<a> which are arranged above the typecharacters, and are numbered to indicate the fingers allotted to the type-characters. The indicating-plate has a transparent cover. Typeindicia 21, preferably consisting of adhesive labels, are arranged below the apertures 15<a>. The indicia are preferably of the same colours as the corresponding keys. The indicia may be covered by a masking-plate 31 having apertures 31<a> in register with the apertures 15<a>. When any key 7 is depressed, the corresponding lower-case character is moved into register with its aperture and can be read. The indicating-plate is mounted in grooves 2<a> and can be moved rearwardly by means of a shift-key lever 20 abutting on a lever 19 which abuts on a pin 18 on the indicating- plate. When the indicating-plate is in rear position, depression of any key 7 moves the corresponding upper-case type-character into register with its aperture. A dummy spacebar 26 is mounted on springs 27.
Patent GB-1105535-A (GB)
Title: Improvements in or relating to magnetic recording systems
IPC: G11B5/265
Filed: 1965-08-18
Abstract: 1,105,535. Magnetic heads. SIEMENS A.G. 18 Aug., 1965 [18 Aug., 1964], No. 35335/65. Heading G5R. In a system for storing digital data on a magnetic tape, stray coupling between a recording head 14 comprising C and I cores 17, 18 and a following monitor pick up head 15 comprising C and I cores 19, 20 is neutralized by the provision of a plate 22 of magnetic material which couples the I core of the recording head to both cores of the pick up head. Because of the greater proximity of the pick up head I core to the recording head, stray flux takes an anti-clockwise path through the pick up head cores and this flux is cancelled by a clockwise flux developed as a result of the greater coupling between the plate 22 and the C core 19 than that between the plate and the I core 20. The heads are separated by screen 21 of copper and mu-metal plates and the eddy currents developed in the copper plates and in the conducting plates 23, 24 assist in confining the stray field and increasing the rise time of the data pulses supplied to the recording head.
Patent GB-322338-A (GB)
Title: An improved shock absorbing device
IPC: F16F1/371
Filed: 1928-11-30
Abstract: 322,338. Woolf, S. B. Nov. 30, 1928. Collision-guards. - A resilient cushioning member 1, which may be applied, for example, to the support of bumper bars on motor vehicles, is mounted at its ends between abutments 2, 3, each provided with a guide, the two guides telescoping one into the other and being located axially within the cushioning member so as to maintain the abutments in alignment. The guiding members may be of the cylinder and piston type illustrated or of the plunger type and each guide may be formed with threaded extensionp for attachment to the parts between which the cushioning member .is arranged. The end plates 5b, 12<a> may have extensions moulded into the rubber, and the end abutments may be formed with flared extensions partly surrounding the rubber cushion 1 and permitting radial extensions only within certain limits.