baber/WOPTO huggingface dataset:
Patent GB-125356-A (GB)
Title: Improved Automatic Shuttle Spool-changing Apparatus for Looms.
Inventor: DUMAIL ISIDORE
IPC: D03D45/20
Filed: 1918-05-21
Abstract: 125,356. Dumail, I. April 12, 1918, [Convention date]. Shuttles, changing bobbins in, automatically.- A fresh bobbin is inserted into the shuttle horizontally by the action of one or more springs under control of weft fork or feeler mechanism and a shuttle feeler. When the weft fails or is exhausted, a shaft 3, Fig. 1, is rocked by weft fork or feeler mechanism and an arm 4 is raised so that its upturned end 5 acts on a sliding spring- controlled bolt 8 on the lay sword 6, as the lay moves rearwards, and causes a nose 11 on the bolt to release a hook 12 on a block 13 slidably mounted on a rod 15 on the sword. The block 13 is pulled down by a spring 16 into position to act on a roller 26 on a bell-crank lever 25 as the lay moves forwards, so that the lever 25 tensions a spring 27 connected to an arm 28 on a lever 30 pivoted at 29. The rooking of the shaft 3 also raises an arm 40 thereon and interposes, between a tappet 47 on the lay and the down turned end of a bell-crank lever 45, a buffer 48 on an arm 49 normally held by a spring 51 against a stop 52. As the lay moves forwards, the lever 45 is raised against the action of a spring 45<a>, so that its end 44 is disengaged from the end of an arm 43 on the lever 30, which is thereupon moved by the spring 27 to cause a connected pusher 32 to transfer the lowest bobbin from a magazine 34 into the shuttle 55 through the front wall of the box 56 and eject the spent bobbin through the rear wall, if the shuttle is properly positioned in the box to receive the bobbin. If the shuttle is not properly positioned, a plate 54, Fig. 2, which normally extends across the inner end of the box and prevents backward movement of the shuttle when the lay is in its forward position, is pushed forwards by the front of the shuttle against the action of a spring 57 and a finger 58 connected to the plate turns a bell-crank lever 59 against the action of a spring 72, so that the forwardly-extending arm of the lever engages a finger 61 on the arm 43 and prevents the operative movement of the lever 30. After replenishment, the lever 30 is returned to its normal position by the engagement of a tappet 42 on the lay-sword with the hooked end 41 of a bar 38, which is suspended by a spring 39 and has its front end engaged in a slot 37 in the lever 30. The block 13 is raised by a spring-controlled lever 18 actuated by a cam 20 on the tappet-shaft 21, and the hook 12 is engaged by the nose 11 since the bolt 8 is free, the shaft 3 having been returned to its normal position, thus lowering the arms 4, 40. These arms may be formed by a single part. The spring 27 may have its lower end secured to a fixed part and be normally in tension. The spring may act directly on the pusher and be connected by a guided cable or chain with the lever 25.
Patent GB-781252-A (GB)
Title: Slave motor
IPC: H02K24/00
Filed: 1956-03-19
Abstract: 781,252. Selsyns. BLANKENSHIP, A. N. March 19, 1956, No. 8464/56. Class 35. A selsyn machine designed to follow the rotation of its brush-gear is provided with a commutated stator 12 and an A.C. fed rotor 11, the brushes 23 being short-circuited to allow the induction of stator poles corresponding to the rotor poles. The commutator consists of segments 19 secured inside a bracing ring 21, the brushes 23 being urged outwardly against the commutator surface by springs 23a and centrifugal force. The brushes may be driven by an auxiliary motor 33 or their position may be set to cause the main machine to take up a fixed position. To prevent the brush-gear being rotated beyond the following power of the main machine, their motion with respect to the rotor is limited by a tongue 40 secured to the rotor shaft and passing through a gap 43 in the brush carrying drum 32.
Patent GB-1218243-A (GB)
Title: Self-adjusting means for friction brakes
IPC: F16D65/56
Filed: 1968-02-21
Abstract: 1,218,243. Automatic brake adjusters. DEUTSCHE PERROT-BREMSE G.m.b.H. 21 Feb., 1968 [28 Feb., 1967], No. 8504/68. Heading F2E. In an automatic brake adjuster, an adjusting sleeve 3, 3<SP>1</SP> (Fig. 1) is adjustable unidirectionally by virtue of a freewheeling unit including a ratchet tooth system 5 and a spring means in the form of a wave washer 6 relative to a housing 1 to adjust a non-rotatable screw-threaded bolt 4, 4<SP>1</SP> which engages a brake shoe. A ring 7, which is rotatable relative to the adjusting sleeve, surrounds the latter and is coupled to the housing 1 by a pin 9 operating in an inclined slot 8 (Fig. 2) to allow any adjustment to be taken up and retained by the ratchet tooth system 5. Fig. 1 shows the adjuster in a wedge and roller actuator of an internal shoe-drum brake. A one-way acting ball freewheeling unit 10, illustrated in Fig. 3, may be provided to act as a unidirectional locking means. Figs. 6 and 7 show the arrangement of the adjuster in an actuator of a self-energizing internal shoe-drum brake such that two screw-threaded bolts 104, 104<SP>1</SP> are screwed into respective adjusting sleeves 103, 103<SP>1</SP> each of which is provided with a separate ring 107, 107<SP>1</SP>, each of the adjusting sleeves bearing upon each other in a powertransmitting manner and being resiliently centred in the housing, each of the pin and slot arrangements 109, 108a, 109<SP>1</SP>, 108<SP>1</SP>a having an inclined portion 108b and 108<SP>1</SP>b such that, when the pin 109, 109<SP>1</SP> enters the inclined slot portion 108b, 108<SP>1</SP>b, adjustment of the rings 107, 107<SP>1</SP> takes place, the adjusted position being retained by interengaging teeth 105, 105<SP>1</SP> on the abutting faces of the sleeves 103, 103<SP>1</SP> and the rings 107, 107<SP>1</SP> which are maintained in engagement by wave washers 106, 106<SP>1</SP>. The adjusting sleeves 103, 103<SP>1</SP> are secured against unintentional rotation relative to the screw-threaded bolts 104, 1041 by plastics plugs 112, 112<SP>1</SP> acting as locking means.
Patent GB-1047988-A (GB)
Title: A force balance for use with a digital read-out
Inventor: ROMBERG EDGAR BERNARD
IPC: H03M1/00
Filed: 1964-02-28
Abstract: 1,047,988. Selective signalling. NORTH AMERICAN AVIATION Inc. Feb. 28, 1964, No. 8513/64. Heading G4H. A force balancing system comprises a lever 10, to one end 16 of which a force to be measured is applied, and to the other end of which an electromagnetic counter force is applied, this force being produced by pulses of opposite polarity applied to two coils 44 and 36 by a pulse generator 46. When the lever is in its neutral central position the pulses applied to coils 44 and 36 are of equal amplitude, 100, and 101, Fig. 5, thus applying a zero resultant force to the lever, but as the lever moves away from its central position a D.C. voltage is superimposed upon the pulses through coil 36 (effectively shifting the datum of pulses 101) so that a resultant counter-balancing force is applied to the lever. The pulse generator 46 produces a sequence of pulses of o pposi polarity on a lead 45, each pulse being an integral multiple of a clock-pulse duration in duration and causing current to flow in opposite directions through coils 44 and 36. The pulse generator 46 also applies clock-pulses 103 to a line 52 when it is producing a positive pulse on lead 45, and to a lead 54 when it is producing a negative pulse. The pulse generator 46 produces pulses whose durations are determined in accordance with the potential across a capacitor 34 in such a way as to maintain the potential as small as possible. A measure of the force on the lever can be found by counting the pulses on line 52 positively and those on line 54 negatively.
Patent GB-589950-A (GB)
Title: Apparatus for the continuous drawing of window-glass
IPC: C03B15/02
Filed: 1945-04-06
Abstract: 589,950. Drawing sheet glass. LEROY, J. April 6, 1945, No. 8532. Convention date, March 13, 1943. [Class 56] In a glass-sheet drawing apparatus having a drawing pit containing a debiteuse d, the collecting zone C, setting zone Sand annealing zone A are all clearly delimited and separate from each other. The collecting zone is defined by the debiteuse and horizontal screens 1 which are movable vertically, horizontally and angularly and the setting zone is defined by the screens 1 and a cloche-like member 4 spaced from the walls of the pit. The member 4 is formed by two interpivoted parts and the ends of the setting zone are closed by panels. Cooling pipes 3 in the setting zone may be oscillated and their distance from the glass sheet may be adjusted. Water may be circulated therethrough or air may be sprayed or sucked. Differently sized bars 6 which may be perforated to pass cool air regulate the passage of air to the annealing zone.
Patent GB-141498-A (GB)
Title: Improvements in valves for suction gas producers
IPC: C10J3/72
Filed: 1919-04-04
Abstract: 141,498. Gardner, W., and Hunter, H. E. April 4, 1919. Lift valves; actuating-mechanism.-A threeway lift valve for controlling communication between a suction-gas generator and the scrubber or the blow-off pipe or chimney comprises a double-seated mushroom valve c, c co-operating with oppositely-disposed seatings, and operating- means to hold the valve in its extreme positions and prevent it from resting in a mid-position. The operating-mechanism consists of levers and links i, k, m and a weighted or spring-loaded arm r. The arm r is connected to a plate q having spaced lugs o, p adapted to engage a lug n on the arm m to operate the valve. The operating-arm r is moved over the dead-centre with lost motion before the lugs become operative, and the valve passes from one position to the other quickly and is held in that position by the weight or spring. The valve may have a cast-iron head with a steel spindle h, which is protected from the gas by a cast-iron sleeve f sliding over the spindle guide g.
Patent GB-181819-A (GB)
Title: Improved catamenial appliance
IPC: A61L15/16
Filed: 1921-03-19
Abstract: 181,819. Bowen, W. A. March 19, 1921. Catamenial appliances.-A catamenial appliance comprises a strip a of india-rubber fabric formed with narrow oval opening a<2> surrounded on the under side by a pouch c of larger size than the opening a<2>. A sponge or other absorbent d contained in the pouch has a part d' extending through the opening at one end and held in position by the elasticity of the walls of the opening. Attachment means a<3>, a<4> are provided at the ends of the strip a and the whole may be enclosed in a covering of soft material. Reference has been directed by the Comptroller to Specifications 1546/81 and 3537/90.
Patent GB-1508591-A (GB)
Title: Manufacture of alloy steels and ferrous alloys
IPC: C21C5/00
Filed: 1974-02-26
Abstract: 1508591 Producing steels and ferrous alloys I G NIXON 18 Feb 1975 [26 Feb 1974] 8576/74 Heading C7D Steel, an alloy steel or a ferrous alloy is produced by charging steel, scrap, Fe sponge, cast iron or a mixture thereof to a converter, preferably an electric converter, together with a ferro-alloy and a flux and refining the melt with a decarburizing gas which is reducing to wustite at the refining temperature. The gas is preferably a mixture of CO/CO 2 /H 2 /H 2 O and optionally N2 formed by burning a hydrocarbon e.g. methane, natural gas, in 02 or air, the molar ratio of H 2 O/H 2  being not greater than 0À45, and the CO content being preferably greater than 10% vol. The ferro-alloy is preferably high-C ferrochrome, and the flux CaO+MgO. The decarburizing gas leaving the converter is quenched with a hydrocarbon stream, the reducing gas produced being used for ore reduction or as a fuel. Examples relate to the production of Cr steels (Examples 1, 3).
Patent GB-308169-A (GB)
Title: Process of making esters
Inventor: SKIRROW WILLIAM
IPC: C07C69/145
Filed: 1929-03-18
Abstract: 308,169. Canadian Electro Products Co., Ltd., (Assignees of Skirrow, F. W., and Morrison, G. 0.). March 17, 1928, [Convention date]. Esters.-Carboxylic acid esters are prepared by passing acetylene gas into the acid in the presence of a mercury salt of the carboxylic acid precipitated by means of the product of reaction at low temperature between the acid and free sulphur trioxide, which may be gaseous, liquid, or in solution. In an example, vinyl acetate is prepared by dissolving mercuric oxide in glacial acetic acid, adding a precipitant formed by reacting SO3, oleum or sulphuric acid with glacial acetic acid at 20‹ C., and then passing through an excess of acetylene gas at about 35‹ C. The vinyl acetate is recovered from the escaping gases. Ethylidene diacetate is also formed and the amount formed is increased with increase of temperature up to a maximum at 70-100‹ C. The vessels used are of an iron alloy of high silicon content or of enamel ware, earthenware or glass. Specifications 15919/14 and 308,170 are referred to.
Patent GB-806228-A (GB)
Title: Improvements in turbopropeller engine control apparatus
IPC: H02P23/00
Filed: 1957-03-15
Abstract: 806,228. Automatic turbo-propeller engine control systems. GENERAL MOTORS CORPORATION. March 15, 1957 [March 26, 1956], No. 8715/57. Class 38 (4). [Also in Group XXXVIII] In a system, electrical signals indicative of output power and temperature are applied to a discriminator which provides an output signal, corresponding to whichever input signal represents the greater departure from a datum, for adjusting the engine fuel valve in accordance with the one of the two parameters which at that moment dictates the lower supply of fuel. Fuel is supplied to an engine E by a pump 13 driven from the engine and metered by a fuel control device 16, which is responsive to the temperature and pressure of incoming air, engine speed and acceleration, and the setting of a datum valve 20. The device 16 has a return pipe 17 to the pump 13 and supplies a 15 per cent excess of fuel to the datum valve, the excess being returned to the pump through a by-pass valve 28 when the valve rod 35 which is driven by servomotor 33 is in its null position. The propeller P is driven through a shaft S and pitch control gear G which is effective in the flight range. The speed of the shaft and the torque transmitted thereby is measured by a pair of toothed wheels 41, 42 and co-operating windings 44, 46, the frequency of the induced voltages indicating speed and the phase displacement between them torque. The output shaft 52 of torque servo 50 adopts an angular position according to torque and is connected to a discriminator 60 together with a shaft 59 which adopts an angular position proportional to the temperature at the turbine inlet measured by a number of thermocouples 54. A potentiometer 70, the wiper 67 of which is driven by the discriminator output shaft 66, forms with a potentiometer 73, the wiper 71 of which is set by control lever 75, a bridge fed by a battery 78 in the input circuit of a transistor or magnetic amplifier 62. The amplifier output controls servomotor 33. The detected speed, torque and temperature are displayed on indicators 110, 120 and 115. The amplifier input circuit includes a switch 90 which is opened outside of the flight range and a switch 95 which is operated when the speed is 10 per cent low. These switches transfer control to a preset potentiometer 99 which includes a rectifier 104 in series with wiper 107 so that control by limiting only is permitted. The speed servo 51 drives also a wiper 87 of a potentiometer 80 which is included in the amplifier input circuit so that when during landing the propeller pitch control reaches its lower limit, resistance is added to the input circuit to increase the motor speed. Specification 723,688, [Group XXXVIII], is referred to.
Patent GB-1031526-A (GB)
Title: Molding process
IPC: D06M15/423
Filed: 1963-03-05
Abstract: 1,031,526. Moulding treated thermoplastic materials. MONSANTO CO. March 5, 1963 [March 26, 1962], No. 8721/63. Heading B5A. A method of permanently shaping a flat fabric material into a three-dimensional form, the fabric material being wholly or mainly of heat-softenable fibres, comprises applying to the fabric a thermosetting resin, a latex and a catalyst for the resin, heating the fabric to a temperature corresponding to the softening temperature of the heat-softenable fibres and to the setting temperature of the resin and latex, and while so heated conforming the fabric to the shape of a mould. The fabric material is preferably mainly acrylonitrile, mixed with another copolymerizable mono-olefinic monomer, e.g. vinyl acetate, with or without viscose. The latex may be an aqueous dispersion of a copolymer of ethyl acrylate, methyl methacrylate and methacrylic acid. The thermosetting resin is a melamine-formaldehyde or a urea-formaldehyde resin (specific examples are given), the catalyst being hydrogen peroxide. The process may be used for making shoe tops, hats, brassiere cups and toys.
Patent GB-905627-A (GB)
Title: Improvements in and relating to the control of lighting effects
Inventor: PASSMORE CHARLES RIVERS
IPC: G05B19/12
Filed: 1959-03-13
Abstract: 905,627. Sound and light apparatus; programmed control. THORN ELECTRICAL INDUSTRIES Ltd. March 4, 1960 [March 13, 1959], No. 8741/59. Classes 38 (6) and 40 (2). [Also in Group XL (b)] Predetermined changes of brightness of a source of illumination are synchronized with a recorded commentary by controlling the current to a lamp 21, Fig. 1, in the anode circuit of a valve 22 by passing a variable dimming screen 31 between a second lamp 29 and a photoconductive element 26, so varying the grid bias of the valve. A second variable dimming screen 30 is passed between the lamp 29 and a second photo-conductive element 25 to vary the time constant of the grid circuit of the valve and so control the rate of change of current in the lamp 21. The brightness of the lamp 21 is made to control the brightness of an illumination source comprising incandescent lamps such as 10 by varying the resistance of a third photoconductive device 19 which forms one arm of a bridge circuit, the diagonal of the bridge being the primary winding 20 of a transformer 14 which serves to control thyratrons 12 and 13 connected in series with the source. The variable dimming screens 30 and 31 are formed of tracks of a film 33, Figs. 2 and 3, the tracks being divided transversely into suitably obscured strips. The lamp 29 is mounted beneath a platform 38 containing an aperture over which the film passes so that the light incident upon photo-conductive cells 25 and 26, which are above the film, is varied. The film is a continuous loop which passes over a wheel 34 and a sprocket-wheel 35, the teeth of which engage in perforations in the sides of the film, the wheel 35 rotating so as to position the next partially obscured strip in the sequence over the aperture in response to an impulse of current through a coil 40 of a relay 41 by means of the drive of a ratchet 48 by a pawl 47 affixed to the armature 43 of the relay. Each pulse of drive current for the relay corresponds to a " cue mark," which may consist of a reflective area such as those shown in Fig. 6 on the back of a magnetic tape bearing the commentary. The cue marks, which may be pieces of white adhesive tape, are illuminated by a lamp and the reflected light is incident upon a photoconductive element connected as one arm of a bridge circuit controlling the film transport control unit shown in Fig. 3. In a further embodiment three pairs of tracks of obscurations on a film may be provided, each pair controlling a source by means of a unit such as that shown in Fig. 1 so that the three sources of, say, red, green and blue, provide independent changes of coloured lighting. Another embodiment, Fig. 10 (not shown), provides for the use of tones recorded on the magnetic tape instead of cue marks on the back of the tape and other forms of cue mark such as conductive areas arranged to close an electrical circuit may be used. The marks of varying opacity may be produced either photographically or by means of opaque material secured to a transparent medium.
Patent GB-890091-A (GB)
Title: Improvements in the surface treatment of material in strand form
IPC: D06B1/10
Filed: 1960-03-11
Abstract: 890,091. Finishing yarns. LUDLOW CORPORATION. March 11, 1960 [June 12, 1959] No. 8748/60. Class 120(3) [Also in Group VIII] An apparatus 8 for smoothing a travelling strand 2, e.g. a jute fibre strand, comprises a rotatable cage 62 containing a mass of rounded bodies, e.g. steel balls 60, movable within the cage 62 which has an opening extending continuously about the periphery of the cage in a plane, and means for rotating the cage about an axis perpendicular to the plane. The thread 2 passes through the apparatus 8 and then makes three passes through two wiper units 10, 12 separated by an electric heater unit 168, the units 10, 12 comprising cages similar to the cage 62. The cage 62 comprises a series of parallel spaced rings 104 between end plates 106, the peripheries of the rings engaging the spaces 102 between ribs 100 on each of three rollers, as 86, mounted on rotatable driven shafts 64, 66, 68. The cage 62 may dip in a trough 120 of liquid 121, e.g. an aqueous solution of polyvinyl alcohol, which is circulated by a pump 132 from a tank 124 via a filter 136, a plate 128, which may be adjustable, ensuring a constant liquid level in the trough 120. Alternatively, the liquid may be dripped or poured over the cage 62. The cage may be supported so that one or more of the rollers 86 dips in the liquid 121, and the strand 2 may itself be passed through the liquid. Adjacent each shaft 64, 66, 68 and parallel thereto is a fixed shaft 44, 46, 48, (Fig. 1), extending between fixed end plates, these shafts carrying spring-urged scrapers which engage the spaces 102 to clean the rollers 86, Fig. 6, (not shown). A modified cage, Fig. 11, comprises a series of rings 154 carried by webs 158 on hubs 156 pressed together on a rotatable central shaft 160. The units 8, 10, 168, 12 may be arranged in a horizontal or vertical straight line, and the heater unit may be omitted or located between the units 8, 10. The apparatus may be used for bleaching, dyeing or pigmenting a strand 2.
Patent GB-594680-A (GB)
Title: Improvements in and relating to rotary pumps and air compressors
IPC: F04C2/04
Filed: 1945-04-10
Abstract: 594,680. Rotary pumps or compressors. BENNETT, T. H., NORTON, H., NORTON, H. V., NORTON, L. B., and NORTON, D. E., [trading as PHOENIX PUMP CO.]. April 10, 1945, No. 8799. [Class 110 (ii)] The pump or compressor has a gyratory piston 13 eccentrically positioned in a working chamber A with a spring connection between the piston and its driving shaft which allows the piston to ride over any solid matter which may tend to jam in between the rotor and the chamber bore. Ball or roller bearings H ride around the inner side of the piston, being supported in a member K which bears on a spring J. A sliding abutment F is positioned between the suction and delivery points C, D.
Patent GB-665758-A (GB)
Title: Process for fluidifying mixtures mainly comprising highly polymerised polyvinyl acetates
IPC: C09J131/04
Filed: 1949-03-31
Abstract: A composition for use as an adhesive or coating comprises polyvinyl acetate, a resinic acid, particularly colophony, and a chlorinated hydrocarbon, particularly tetrachloronaphthalene or chlorinated gas-oil.  Preferably the quantity of resinic acid should not be smaller than 5 per cent by weight of the quantity of chlorinated hydrocarbon.  Plasticizers such as tricresyl phosphate, anthracene oil and butyl phthalate, and inorganic substances such as ochre and mineral black, may be added.
Patent GB-899042-A (GB)
Title: Improvements in or relating to machines for filling and closing containers, for example paper cones for ice cream
IPC: B65B7/28
Filed: 1960-03-14
Abstract: 899,042. Ice cream cones. BLATCHFORD, W. C. (Wise, R. T.). March 14, 1960, No. 8836/60. Class 28 (1). [Also in Groups XVI and XVII] An ice cream cone package consists of a paper or like covering having a sealed-on disc closure 176 enclosing an edible cone C containing ice cream covered with chocolate sauce and nuts. A machine (see Group XVII) fills and seals the package.