baber/WOPTO huggingface dataset:
Patent GB-751850-A (GB)
Title: Improvements in or relating to fuel supply systems for ram-jet engines
Inventor: JAMISON ROBIN RALPH
IPC: F23D11/24
Filed: 1953-02-16
Abstract: 751,850. Jet propulsion plant. BRISTOL AEROPLANE CO. Ltd. Feb. 10, 1954 [Feb. 16, 19531. No. 4331/53. Class 110(3) [Also in Group XI] A ram jet engine is supplied with fuel by a centrifugal pump, driven by an ungoverned air turbine supplied with air through a ram inlet, which discharges to fixed fuel distributing means in the ram jet engine through an orifice system having a pressure-flow characteristic matched to that of the air turbine and pump that the fuel to air ratio remains within predetermined limits over a predetermined range of flight speeds and altitude conditions. In the arrangement shown fuel from a tank 1, Fig. 1, is supplied by a centrifugal pump 3 through a fixed area sharp edged metering orifice 12 to a manifold 13 having branches 14 leading to discharge orifices 15 located in a ram jet 10. The discharge orifices are of such a size that the fuel flow is substantially unaffected by the pressure drop across them. The pump 3 is driven by a high speed turbine 4 operated by ram-air taken in through a ram-air inlet 7. The turbine speed is controlled only by the load of the pump. Since the turbine power is related to the ram inlet pressure and the air-flow through the ram jet is also proportional to this pressure, the arrangement is such that a substantially constant fuel/air ration will be maintained under varying conditions of flight. In a modification the fixed area orifice 12 is replaced by a variable orifice, Fig. 2, which comprises a cylinder 115 having an orifice 18 the area for fuel flow of which is determined by a spring loaded piston 25 so that the area increases as the fuel pressure increases. The shape of the orifice or orifices 18 may be varied to suit the characteristics of the installation. In a further modification, the orifice 12 is replaced by a burner having a variable area orifice. In this arrangement a spring loaded piston attached to a needle valve is arranged to vary the area of the burner orifice so that it increases with increase in fuel pressure. In an installation comprising more than one ram jet unit, two or more pumps driven by a single turbine are provided, each pump being arranged to feed a single ram jet unit. In a modification of this arrangement a single pump may be arranged to feed each ram jet unit through a separate orifice.
Patent GB-1498361-A (GB)
Title: Shuttleless loom gripper head
IPC: D03D47/23
Filed: 1976-02-04
Abstract: 1498361 Weft inserters; shuttleless looms LINDAUER DORNIER GmbH 4 Feb 1976 [17 April 1975] 04382/76 Heading D1E A weft gripping head has jaw closing with two pressures, a first strong pressure for weft insertion and a second, weaker, pressure which allows the weft to be withdrawn from the jaw during beat-up or transfer at the centre of the shed until the jaws are subsequently fully opened to release the weft. The head has a fixed jaw 1 and pivoted thereon a movable jaw 2 urged closed by a spring 6. The movable jaw 2 has loosely mounted thereon a spring loaded clamping member 5 and the fixed jaw 1 has a resilient clamping member 9 with a non-slip surface. The jaw 2 is opened by a cam 7 with two stages of movement, the first stage opening the jaw 2 against the spring 6 so that the members 5, 9 are urged together only by the spring 8, and the second stage opening the jaw 2 to completely free the members 5, 9.
Patent GB-1046833-A (GB)
Title: Hinge connection between the back and the seat of a chair and similar articles of furniture
Inventor: FLODELL STIG AXEL RUNE
IPC: B60N2/225
Filed: 1964-02-03
Abstract: 1,046,833. Adjustable seat backs. K. A. DAVIDSSON. Feb. 3, 1964 [Feb. 5, 1963], No. 4414/64. Heading A4J. [Also in Division E2] A hinge connection between the back and seat of a chair-especially the front seat of a car-has a locking handle 29 which clamps inclined faces 16, 17 on a bearing housing 13 against surfaces 11, 20 on a bearing support 10 and bearing washer 18 respectively, arms 9, 14 connecting the support 10 and the housing 13 to the back and seat respectively. A spiral spring located between members 10, 18 urges the back forward against the passenger so that a comfortable position can be selected before tightening the locking handle 29. In a modification (Fig. 6, not shown) a stop 42 is provided so that if the seat is tipped forward to give access to the rear seats is will return to the adjusted position without need for resetting. Adjustment is also provided to ensure that when tightened the handle 29 always extends forwardly to a convenient position. The seat backs can be folded rear-wardly to a horizontal position for conversion into beds.
Patent GB-442107-A (GB)
Title: Improvements in and relating to "tell-tale" devices for indicating the failure of anelectric circuit
IPC: B60Q11/00
Filed: 1935-02-13
Abstract: 442,107. Detecting faults. DONALDSON, F. G., 14, The Parsonage, Manchester. Feb. 13, 1935, No. 4602. [Class 37] [See also Group XXXVIII] For giving an in termittent alarn when failure takes place in a controlling circuit, the cir cuits of both the controlling unit anc the alarm include a thermal switch. As shown, when current flows through the thermal unit, the contacts d are opened. Should the circuit a fail, the contacts d close and complete the alarm circuit b, the thermal device acting as an interrupter to complete the alarm circuit intermittently.
Patent GB-305991-A (GB)
Title: Improvements in or relating to stairways
IPC: E04F11/04
Filed: 1929-02-11
Abstract: 305,991. Bessler Disappearing Stairway Co., (Assignees of Bessler, F. E.). Feb. 13, 1928, [Convention date]. Ladders.- A disappearing ladder formed of metal is combined with a hinged floor panel and is slidable thereon, and separate counterbalancing means are provided for the combined ladder and panel and for the ladder in its extended position. The panel 15 is hinged at 14 to a hinge plate 12 adjustable vertically by screws 10 on a hanger plate 7 which is secured to the end plate 5 of the floor opening surround. Mounted in the opening on each side are plates 17, 20 forming box-like recesses in which are removably mounted spring rollers 22, 23 on hollow spindles 26, the spindles being prevented from rotation by engagements of slots in their ends with tongues 25 on plates 17, 20 which also engage slots 37 in removable end plates 36 on the spindles. Cables from one pair of rollers on each sids pass over pulleys 46 disposed at each side of the floor opening and thence to pivoted pulley plates 51 carrying pulleys 49 to engage with guide bars 50 on the upper side of the panel, the pulleys passing along these guide-bars as the panel is lowered or raised. Removable cable stops 53 limit the downward movement of the panel. Cables 55 from the other pair of pulleys are attached to brackets 56 on each side of the ladder, so that the springs in these pulleys assist the raising of the ladder onto the panel. The ladder is formed of metal side-bars 61, 72 joined by metal steps 58, and is provided with a handrail 59. The side-bars are guided over pairs of fixed pulleys 44, 63 disposed in the floor opening and on the panel respectively, and at their upper ends engage between flanges 67, 68 mounted on pivoted plates 64 disposed on the axle 43 of the upper pair of guide pulleys 44, while at the lower end only upper guide flanges 78 are provided on the brackets 62 which carry the guide wheels 63. The downward movement of the ladder on the panel is positively stopped by a stop 74 fixed to the upper tread 58<a> engaging the upper guide flange 67, Fig. 14. For assembly, the upper tread is removed and repalced after the side-bars 61 have been passed between the upper guide flanges.
Patent GB-556480-A (GB)
Title: Improvements in gas meter and other casings or containers divided interiorly into gas-tight chambers
IPC: G01F3/22
Filed: 1942-04-09
Abstract: 556,480. Gas meters. WILSON GAS METERS, Ltd., G., WILSON, J. H., and POOLE, D. C. E. April 9, 1942, No. 4645. [Class 54] [Also in Group XXII] A gas meter casing or other container 2 is divided into two or more gas-tight chambers by one or more sheet metal plates 6 inserted edgewise into concave or V-shaped grooves or channels 3 in the container and secured in position by split spring rings 5, 5a. The grooves 3 are preferably first filled with red lead or other sealing compound. The ends of the container may be closed by plates similarly secured.
Patent GB-232376-A (GB)
Title: A machine for testing, cleaning, printing and packing eggs
IPC: B65B23/02
Filed: 1924-02-26
Abstract: 232,376. Caprotti, A. Jan. 22, 1924. Addition to 170,855. Cam gears.-In gears having separate admission and cut-off cams angularly adjustable by sleeves on a quick-pitch screw through straps having lost-motion relative to the sleeves as described in the parent Specification, the reversing crank-shaft A<1> is given an extra angular adjustment " a " beyond the full steam ahead or full steam backward positions to prevent lost motion during which time the straps K, K<1> move freely on their sleeves M, M<1>. The cams then occupy substantially the same positions for forward and reverse movement for each notch of the reversing-quadrant. The quadrant, Fig. 1, has fifteen notches. Positions 1, 13 represent full ahead and reverse; the additional positions 0, 14 enable the angular adjustment to be effected.
Patent GB-211344-A (GB)
Title: Improvements in holders or clamping devices for securing petrol and like cans and similar objects
IPC: B60K15/06
Filed: 1923-02-20
Abstract: 211,344. Waite, G. T. Feb. 20, 1923. Petrol cans, detachably securing to running boards.-The beaded edge 5 of a spare petrol can is gripped between an inturned member on one side and a slidable clamping member 13 on the other side, this member being adapted to press the beaded edge downwards and inwards and to co-operate with a raised shoulder 7 on the base to grip the can firmly. The member 13 is held down by a fly nut 14 engaging a bolt 10 and is raised by a spring 15, the fitting being capable of tilting relatively to the base to facilitate engagement and disengagement of the can. The hasp of a padlock may be inserted through a hole 18 in the fly nut and a groove or flat or the ball 10. In a modification the fly nut is replaced by a small nut working in a recess in the member 13 and operated by a key. In a further modification, the nut is replaced by a bolt which enters a screwed member secured to the base.
Patent GB-179667-A (GB)
Title: Improvements in or relating to tooth brushes
IPC: A46B5/02
Filed: 1921-02-12
Abstract: 179,667. Cosens, A., and Peden, T. R. Feb. 12, 1921. Grip, facilitating.-A tooth-brush handle 3 has an ovaliform enlargement 5 to facilitate oscillation of the brush head during cleaning of the teeth. The enlargement may be plain or, as shown, provided with a number of spiral grooves 6.
Patent GB-355172-A (GB)
Title: Manufacture of cellulose derivatives esterified by residues of partly esterified polybasic acids
IPC: C08B7/00
Filed: 1931-02-17
Abstract: Cellulose, or a cellulose derivative such as an ester or ether containing one or more free hydroxyl groups, is esterified by means of a chloride of an acid ester of a polybasic acid, if desired in the presence of a catalyst such as thionyl chloride, sulphuryl chloride, phosphorus trichloride, or phosphorus oxychloride.  The chloride of the acid ester of the polybasic acid need not be isolated and may be formed in the presence of the cellulosic material to be esterified. Suitable acid esters are those whose neutral esters have a gelatinizing power, for instance acid esters derived from a mono- or poly-hydric alcohol and phthalic, adipic, methyladipic, or phosphoric acids.  The cellulose derivatives which are produced are soluble in organic solvents and yield elastic films, coatings and lacquers without the use of gelatinizing agents.  Mixed esters produced from cellulose nitrate have the advantage of a reduced combustibility. According to an example, cellulose dinitrate and phthalic acid mono-n-butyl ester dissolved in ethyl acetate are acted upon by thionyl chloride.
Patent GB-959724-A (GB)
Title: Improvements in the construction of greenhouse walls
IPC: A01G9/14
Filed: 1962-02-09
Abstract: 959,724. Glazing greenhouses. D. SHARP. Feb. 9, 1962. No. 5007/62. Heading E1R. The inclined or vertical wall of a greenhouse includes two vertically spaced parallel horizontal frame members 10, 11 of wood or extruded metal supporting glass panes 13 or other plates, arranged side by side with overlapping edges, the tops of the panes being located in a groove 14 in the upper member and the bottoms of the panes sitting on a ledge 17 of a rebate cut along the length of the lower member 11 and held thereon by buttons 21, Fig. 3 pivoted to the member 11. When two series of panes are required, the member 11 is provided on its underside with a ledge 18 formed by a rebate against which ledge the upper portions of the lower panes 23 rest and are held in place by buttons 21 pivoted at the centres thereof, the bottoms of the panes 23 being received in a channel-section frame member 25 constituted by two strips of wood 26, 27 spaced apart by short strips 28 of wood leaving drainage spaces therebetween. A transparent sealing strip 19 is pressed against the external side of the upper marginal portion of the panes by a wooden strip 20 secured to the member 11. The extreme sides of the end panes are received in grooves in vertical frame members.
Patent GB-752905-A (GB)
Title: Improvements in or relating to grinding, polishing or cutting discs
IPC: B24D5/12
Filed: 1954-02-19
Abstract: 752,905. Abrasive discs. KLINGSPOR C. Feb. 19, 1954 [March 27, 1953], No. 5022/54. Class 60 An abrasive grinding, polishing or cutting disc consists of a single element having equal sectors or segments 11, 12 projecting alternately in opposite directions from a central plane transverse to the axis of rotation. The sectors or segments 11, 12 are formed by removing layers of (material of uniform thickness from opposite sides of a moulded disc of rectangular cross section. The finished disc, which may have an artificial resin bond, is of uniform thickness with the inner faces of the sectors or segments overlapping the central plane. The disc is preferably made from a material of sufficient resilience to prevent breakage by centrifugal force.
Patent GB-213734-A (GB)
Title: Improvements in or relating to scrubbing brushes
IPC: A46B5/02
Filed: 1923-02-21
Abstract: 213,734. Quick, H. Feb. 21, 1923. Soap-holders. - A perforated soap-container 1 attached to the back 7 of a brush is cut away at its lower edges to leave on each side a gap 5 through which soapy liquid may pass. The container, provided with a pivoted or other lid 3, is preferably of rounded form transversely and may be made of sheet metal, cast metal, or wire gauze. According to the Provisional Specification, the container may be detachably secured to the brush-stock by means of spring arms.
Patent GB-790194-A (GB)
Title: Improvements in or relating to aircraft
Inventor: DAVIDSON IVOR MACAULAY
IPC: B64C9/38
Filed: 1953-08-12
Abstract: 790,194. Jet propelled aircraft. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. July 30, 1954 [Aug. 12, 1953], No. 5064/57. Divided out of 790,193. Drawings to Specification. Class 4. An aircraft comprises jet propulsion means discharging a jet rearwardly from the rear of each wing as a long thin jet sheet extending continuously over a major part of the span thereof, jet deflectors to deflect the two jet sheets upwardly or downwardly, and control means for the jet deflectors operable to deflect the jet sheets together or differentially at will. The subject-matter is the same as that disclosed in Specification 790,193, but the claims differ. Specification 787,012 also is referred to.
Patent GB-540684-A (GB)
Title: Improvements in and relating to hydraulic driving mechanism
IPC: F15B21/0423
Filed: 1940-03-20
Abstract: 540,684. Hydraulic machines; automatic electric control systems. OLAH, G. March 20, 1940, No. 5160. [Class 69 (ii)] [Also in Group XXXV] In hydraulically-controlled driving-mechanisms for machine tools irregularities which may arise during operation are counteracted by controlling the viscosity of the operating liquid by heating or cooling it automatically under control of a metering device which meters the viscosity itself. As applied to a system in which the hydraulic motor 1, Fig, 1, Provisional Specification, is supplied by a pump 2 and conduit 4 from a reservoir 3 under control of a metering throttle 1<SP>11</SP> and a reversing valve 1<SP>1</SP>, and a discharge conduit 5 fitted with a relief valve 7 and byepass 7a discharges into the reservoir, the viscosity regulator is constructed of two throttles 8, 9 and a servomotor 11 which are arranged between the conduits 4 and 5. The throttle 8 is formed with a long passage for the liquid and has a resistance proportional to the viscosity of the liquid, and the throttle 9 has a resistance depending mainly on the velocity of the liquid flowing through, so that a change in the viscosity of the liquid alters the pressure at the junction 10 and the piston 12 of the servomotor 11 falls if the viscosity rises and a switch 17<SP>1</SP> is closed to energize a heating device 14 which heats the liquid and so decreases its viscosity. In a modification, Fig. 2, Provisional Specification, a pressure reducing valve 20 establishes a constant pressure difference between conduits 4, 41, which are connected to the throttle devices 8, 9 in the manner shown and the servomotor 12 has three connections to the liquid circuit and is fitted with a differential piston which operates a throttle 22 to increase or decrease the cooling effect of a fan 21 upon a cooling surface 23 traversed by the operating fluid. The servomotor 12 may control a heating- device also. In a further modification, Fig. 2a, a constant throttling resistance 120 is inserted in the supply pipe 4 of the system 1, and a servomotor 122 is connected to opposite sides of the resistance and operates a switch 171 of a heating coil 17. A spring 124 balances the pressure differential in the throttle 120. This form may be varied by dispensing with the spring 124 and employing a differential piston as the main part of the servomotor. The throttle 8 may be constructed to give a pre-determined constant resistance or to give a variable resistance and may be in the form of a closely fitting plug having an external helical groove for the flow of liquid. Or it may be a similar plug which is adjustable in a closely fitting tube connected to a wider chamber which opposes little resistance. Or a plug with helical grooves 68 of variable triangular cross section may be adjustably secured in a partition P, Fig. 6, in the liquid circuit. The locus of the apices of the grooves lies on a curve 69.
Patent GB-715914-A (GB)
Title: Method of and apparatus for treating plastic structures and products produced thereby
IPC: B29C48/08
Filed: 1952-02-27
Abstract: <PICT:0715914/IV (a)/1> A method of treating plastic film to improve the adhesion of ink impressions subsequently imprinted thereon comprises subjecting the surface of the film to high-voltage electric stress accompanied by corona discharge.  As shown, polyethylene film 12 is fed from a roll 10 round a metal wheel 20, which is electrically grounded, to a take-up roll 50.  The wheel 20 constitutes a movable electrode, and the film passes between it and a fixed electrode 60 to which is secured a dielectric 90.  A high-voltage potential is built up across the electrodes by means of a variable-voltage transformer 106 delivering from 0-135 volts and a high-voltage high-leakage resistance transformer 98 delivering from 10,000 to 30,000 volts at 5-40 milli-amperes A.C. The greater the speed of travel of the film, the longer must be the electrode 60. With a film up to 0.01 inch thick, the space between the wheel 20 and dielectric 90 may be 0.25 or up to 0.5 inch.  If the dielectric 90 is of polyethylene, it may be 0.005 inch or up to 0.05 inch or more thick, but it may be of other thermoplastic material, ceramic material, glass or mica.  The dielectric may alternatively be secured to the movable electrode, or omitted if less than the entire width of the film is to be treated.  In another form, the film is delivered from an extruder in the form of a hollow tube and is passed between two flattening rollers, one of which constitutes the movable electrode.  In one example, the stationary electrode is 5 inches wide and 9 inches long, the solid polyethylene dielectric 0.02 inch thick, the wheel 30 inches in diameter, the space between the wheel and dielectric 0.25 inch, the voltage 15,000 at 6 milliamperes, the film 0.002 inch thick and up to 6 inches wide, and the speed 100 feet per minute.  In another example, the stationary electrode is 8 inches long and 24 inches wide, the dielectric 0.02 inch thick, the voltage 15,000 at 9 milliamperes, the film a fiattened tube of wall thickness 0.002 inch thick and up to 27 inches flat width, and the speed up to 50 feet per minute.  Both surfaces of the film can be treated in succession.  A plurality of fixed electrodes can be used in tandem relationship.  The film may be of other plastics, such as rubber hydrochloride, vinyl acetate-vinyl chloride copolymer, butadiene-acrylonitrile copolymer, or that known under the Registered Trade Mark "Saran."  The adhesion of printing ink is improved whether the ink is aniline, intaglio, drying oil or other ink, and also the fat-resistance of the imprints is improved.
Patent GB-136044-A (GB)
Title: Improvements in Slidable Windows of Vehicles.
Inventor: SHEPHERD JAMES
IPC: E05F11/38
Filed: 1919-03-03
Abstract: 136,044. Shepherd, J. March 3, 1919. Window holders for sliding sashes; vehicle windows.-In sliding windows of vehicles, particularly motor-cars, a sliding two-piece bolt j<2>, j<3> is carried in a slide m fixed to the bottom rail c of the panel frame and is spring-pressed into engagement with holes i in the side guide-members e, f of the frame. A sliding piece q with inclines q<2>, q<3> engaging studs r with or without rollers in the bolts is mounted in the slide m and attached to the window strap o so that a pull on the strap withdraws the bolts and frees the window. The panel is retained in a channel-section three-sided frame with rubber or like packing by lugs c<4> at the top.