baber/WOPTO huggingface dataset:
Patent GB-660266-A (GB)
Title: Garment pressing machine
IPC: D06F71/08
Filed: 1948-05-11
Abstract: 660,266. Ironing-presses. BISHOP CO., G. H. May 11, 1948 [July 26, 1947], No. 12910/48. Class 138 (ii). A garment-pressing machine includes a plurality of horizontally arranged, vertically adjustable bucks 14 mounted on a table 12 and each adapted to receive a garment to be pressed, and means for moving the table to bring the bucks in turn under a vertically movable presser head 17. The table 12 is secured to a sleeve 13 and mounted on roller bearings with bearing rings 30, 31 for rotation about a hollow standard 11, and fluid pressure means are provided for rotating the table and for pressing the head against a buck. In the example, four bucks are provided and the table is moved around in 90 degree steps, pedals for actuating the fluid pressure means being located on the opposite side of the machine from the presser head so that the operator is well away from the latter. By depressing a pedal 39 a three-way valve 43 is opened and allows air under pressure to be supplied from pipes 41, 40 through a pipe 44 (Fig. 3) to a cylinder 34 containing a piston 33. The piston is thus moved outwardly by the air under pressure and is returned to its original position by a spring when the pressure is released. An extension of the piston constitutes a rack gear 33 engaging with a ring gear 32 which is rotatable about the lower end of the sleeve 13. The ring gear carries a spring-pressed dog or pawl 36, the free end of which engages in turn with each of four holes or notches, 90 degrees apart, in the sleeve 13, so that the sleeve and table can be rotated through a quarter turn each time the pedal 39 is depressed. In order to ensure accurate registration of each buck with the head, small lugs 38 are secured to the peripheral edge of the ring 30 which is secured to the lower end of the sleeve 13. These lugs are adapted to be engaged by the inner end of the pedal 39 when the latter is not depressed, and this occurs when the table is to be stopped. Depression of the pedal frees the stop 38 and the table can be rotated. By depressing a second pedal 47 another three-way valve is opened and allows air to be supplied through a pipe 28 to a cylinder 21 containing a piston 22 whose piston-rod 23 carries the steam or electrically heated presser head 17. A coil spring 26 inside the cylinder returns the head to its raised position on the release of the air pressure. The machine may be operated by fluid other than air by modifying the valve arrangements.
Patent GB-815411-A (GB)
Title: Improvements in or relating to saw tooth wave generators
Inventor: HELSDON PETER BENNETT
IPC: H03K4/68
Filed: 1957-04-23
Abstract: 815,411. Sawtooth wave-generating circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Feb. 3,1958 [April 23, 1957], No. 12911/57. Class 40 (6). A sawtooth current wave generator comprises a first inductance connected in series with a capacitance across a normally open switch which when closed substantially discharges the capacitor, a charging circuit for the capacitor comprising a second inductance in series with a source of current, and a circuit for limiting the voltage across the first inductance to a predetermined value when the switch is open, the arrangement being such that when the switch is periodically closed. sawtooth current waves of the frequency of the switch closure are produced in the first inductance. Fig. 2 shows an inductor 2, which may be the deflection coils of a cathode-ray tube, connected in series with a capacitor 1 across a normally non-conductive transistor. At the end of the current sweep in the inductor 2 a pulse is applied to the input terminals 6 to cause the transistor to conduct and the capacitor 1 to discharge resonantly through the inductor. When the capacitor is substantially discharged (i.e. at the end of a half-cycle of oscillation) the pulse is terminated and the transistor becomes non-conductive. The current through the inductor then begins to decrease and the voltage across it reverses to a value which is determined by a self-biased limiter circuit 9, 10, 11. The constant voltage which accordingly exists across inductor 2 causes the current in the inductor to decrease linearly, thus producing the scan. During this period the capacitor 1 is recharged through an inductor 8, the circuit 8, 1 being resonant at half the sawtooth frequency so that the capacitor charges to twice the voltage of the supply. The position of the condenser 1 and inductor 2 may be interchanged (Fig. 1, not shown) and the left-hand terminal of inductor 8 may be connected to the lower end of capacitor 10 so that the capacitor is in series with the supply source 7 (Fig. 3, not shown). In Fig. 5 the limiting circuit 9, 10 is coupled to the coil 2 through a transformer having a ratio such that the desired discharge current of the capacitor is equal to that taken by the circuit so that the resistor 11 may be omitted. The positions of inductor 8 and the transformer limiting winding may be interchanged (Fig. 4, not shown) or the turns ratio of the transformer may be such that the limiting circuit may be connected across the battery instead of the condenser so that the current through the limiting circuit is returned to the battery (Fig. 6, not shown). The deflection coil is coupled to a further winding 22 of the transformer and the circuit of this winding may include a D.C. supply for positioning the trace on the tube. It is stated that the transistors may be replaced by valves.
Patent GB-141939-A (GB)
Title: Improvements in or relating to clock-work mechanism for driving gramophones and for like purposes
IPC: G11B17/00
Filed: 1919-05-22
Abstract: 141,939. Millard, J. A. M. May 22, 1919. Spring power-storing mechanism.-In gramophones &c. provided with two independent driving-spring, which may be placed under stress and in driving connexion with the remainder of the mechanism alternatively at will, the springs are mounted in drums a, b co-axially on either side of a gear-wheel i, with which they are adapted to be engaged, and are provided with spindles adapted to form bearings the one for the other. The gear-wheel is adapted to be connected to either spindle by a pin and apertures n, o to wind up the springs. The springs may be placed in driving connexion with the record spindle 8 alternatively by means of the slidable sleeve y and gearing 6, 7. The plate g forms a bearing for the outer end of the spindle c and is removable to allow the springs to be removed if broken, and replaced.
Patent GB-196191-A (GB)
Title: Improvements relating to portable benches for circular saws
IPC: B27B5/10
Filed: 1922-05-08
Abstract: 196,191. Prewett, C. G. May 8, 1922. Circular-saw machines.-A circular-saw bench is provided with rectangular slots e through which is passed a rectangular axle d carried on wheels c. A draught bar g for a tractor or shafts for a horse are provided. To insert or remove the axle the bench is tilted on to one end, thereby freeing the wheels from the ground, and one wheel is taken off.
Patent GB-615311-A (GB)
Title: Apparatus for shearing, bending and otherwise operating upon wire or strip material
IPC: B21F1/00
Filed: 1945-05-24
Abstract: 615,311. Angular bending ; twisting. FRANKENSCHWERTH, K. May 24, 1945, No. 13006. [Classes 83 (ii) and 83 (iv)] Making toys.-Apparatus for shearing, bending, &c. wire or strip to make parts for a constructional toy comprises hand-actuated shearing, angular bending, twisting and winding devices. Shearing adjunts.-A strip positioned by a slot formed by a member 50 is sheared by a blade 12 reciprocated by a lever 6 pivoted on a pin 8. Angular bending.-Strips inserted in slots 47, 48, 49 are bent to U-form by members 33, 27, 28, actuated by the lever 6. Twisting.-One end of a strip is anchored in a slot 65 and the other is rotated by engagement with a slot 71 in a bush 67 rotated by hand levers 69. Winding.-To bend a strip to flat spiral form one end is inserted in a slot 3 in a former 2 and an attached leather strip 5 is wound with the strip about the former to effect bending and to space the coils. Clinching staples. Staples may be clinched between reciprocated members 54, 55 pivoted on opposite sides of the pivot 8 of the handlever 6. In a modification, Fig. 1 (not shown), a slotted bar is provided for holding the staple during clinching. A sliding edge gauge is provided for use during shearing.
Patent GB-1496706-A (GB)
Title: Pressure gradient reaction valve arrangements
IPC: B60T15/52
Filed: 1975-03-27
Abstract: 1496706 Rail vehicle braking systems WESTINGHOUSE BRAKE & SIGNAL CO Ltd 25 March 1976 [27 March 1975] 13016/75 Heading F2F A rail vehicle braking system comprises a valve arrangement for detecting a pressure gradient along the brake line 1 (as the pressure falls on application of the brakes) and venting the brake line to increase the brake response. The pressure drop detector 4 has a diaphragm 3 with connections to a choke 6 and reservoir 5 so that falling pressure in the line 2 raises the diaphragm to open the ball valve 9. If in the brake line 1, the pressure at A is higher than the pressure at B, the diaphragm 22 is lifted from outlet 18 allowing brake line pressure to be vented from line 25 through the valve 9 and the line 15. This pressure also lifts the diaphragm 14 in the vent valve 27 and further venting takes place through the line 2 and valve 12. Venting ceases when the pressure difference between A and B disappears. If the pressure differential in the brake line is in the opposite direction, the diaphragm valve 19 operates instead of the valve 20. The connections 25, 26 may lead to oppositely-directed pitot tubes in the brake line 1, instead of to spaced points on the brake line.
Patent GB-423917-A (GB)
Title: Improvements in and relating to radiation devices
IPC: A61N5/08
Filed: 1933-05-04
Abstract: 423,917. Metallic vapour lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, and GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, both in London.-(Assignees of Spanner, H. J. ; 117, Chausseestrasse, Berlin) May 4, 1933, No. 13044. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 6, 1933]. [Class 39 (i)] [See also Group VI] An ultra-violet and an ultra-red radiating- unit are connected in series and combined, either in the same or different reflectors, the resistance forming the ultra-red unit being such that it reaches its full incandescence by gradual stages, whereupon the ultra-violet discharge is initiated and the incandescent member ceases to glow. The units may be so mounted that the heat from the incandescent member is applied to the ultra-violet unit and assists in the production of the discharge. The Figure shows an ultra-violet ray discharge tube R filled with metal vapour, connected in series with a resistance H which is provided with a divided winding and forms an incandescent heat radiator with a control switch S for cutting out part of the resistance. In a modification, the ultra-violet and ultra-red radiating-units are disposed in separate reflectors mounted back-toback upon a common stand, and the ultra-red ray unit comprises an incandescent filament lamp having a filament with a very low temperature coefficient. When separate reflectors are used they are preferably coated with different metals, for example, copper for the ultra-red rays and nickel or chromium for the ultra-violet.
Patent GB-514288-A (GB)
Title: Process for the manufacture of polysulphides of organic bases and of their solutions
IPC: C07C215/12
Filed: 1938-05-02
Abstract: 514,288. Medicines; fungicides. BLANK, C., BLANK, H., ANTROPOFF, A. VON, and FRIEDRICHSEN, J. May 2, 1938, No. 13086. Convention date, June 28, 1937. [Class 81 (i)] [Also in Group IV] Polysulphides of organic bases for the treatment of certain skin diseases, e.g., diseases due to fungi, are produced by reacting a hydroxyalkylamine, preferably trithanolamine or a mixture of hydroxyalkylamines with sulphur in the presence of hydrogen sulphide. The viscosity of triethanolamine needs to be lowered to aid the reaction by raising the temperature to 50-100‹C. or by adding a diluent such as water, excess triethanolamine, a liquid soap, preferably a triethanolamine soap, a semi-liquid soft soap, or a mixture of water with methyl alcohol, ethyl alcohol or glycerine. In this way a solution of the polysulphide is obtained. Mono- or di-alkanolamines may be used and are generally sufficiently thin not to need lowering of their viscosity. Mono-ethanolamine can dissolve sulphur forming stable solutions without addition of hydrogen sulphide. Methanolamine sulphite may be added to the solutions as a stabilizer.
Patent GB-956013-A (GB)
Title: Aircraft
Inventor: DAVIDSON IVOR MACAULAY
IPC: B64C27/26
Filed: 1961-04-12
Abstract: 956,013. Boundary layer control. POWERS JETS (RESEARCH & DEVELOPMENT) Ltd April 3, 1962 [April 12, 1961], No. 13134/61. Heading F2R. [Also in Division B7] An aircraft has a two-bladed rotor and wings 2 for supporting the aircraft in forward flight, the blades 9 being rigidly attached to rotor head 7 at a fixed coning angle, the rotor being bodily movable along its axis between an operative position (dotted line in Fig. 1) and an inoperative position in which the blades extend fore and aft and are at least partly housed in recesses 11, 12 in fuselage 1 and tail-fin 3. Fairings 13, 14 receive tip jet units 10 of the blades which are of circular cross-section and which have span-wise apertures in the top and bottom of the blade and one or more apertures rearward of the top aperture and facing partly downwardly. The area of the apertures is controlled by flexible strips hydraulically operated from a swash plate to give cyclic or collective variation of blade lift or boundary layer control ; the supply of fluid to the various apertures may also be controlled by valves. The aircraft has two pairs of by-pass jet engines 41, 42, the rear pair having an intake 46 with vanes 50 and a retractable scoop 51 and delivering its jet stream via pipe 47, chamber 36, Fig. 5, passages 37, 31 to the tip jets 10. The front pair of engines deliver its jet stream either to propulsion nozzles 44 or to chamber 36. The rotor head is mounted by bearings 21, 22 in a sleeve 23 movable by jacks 33 fixed to the aircraft 32, passage 37 being formed by telescopic members 25, 35. A member 34 slidable in sleeve 23 forms an annular chamber 38 by which air taken via pipes 48, 49 from the engine compressors, to the discharge apertures in the blades. Specifications 944,010 and 948,947 are referred to.
Patent GB-1097974-A (GB)
Title: Improvements in or relating to electro-acoustic transducers of the moving coil permanent magnet type
Inventor: YOUNG ARTHUR CHARLES
IPC: H04R31/00
Filed: 1964-03-31
Abstract: 1,097,974. Permanent magnets. ROLA CELESTION Ltd. March 25, 1965 [March 31, 1964], No. 13169/64. Heading H1P. [Also in Division H4] In a loud-speaker or other electro-acoustic transducer of the moving-coil type having a permanent magnet 10 (Fig. 1), a ring-shaped pole cap 17 is secured to the end surface 11 of the magnet 10 by solidified adhesive 19 located within the aperture 18 of the pole cap 17. The adhesive 19 is in intimate contact with the side wall of the aperture 18 and the portion of the magnet surface 11 exposed by the aperture 18. The lower surface 12 of the magnet 10 is seated within a recess 13 in the base of a cup-shaped yoke 14 of soft iron or mild steel and is retained by adhesive 21. In manufacture, the magnet 10, yoke 14 and pole cap 17 are held by a combined jig and clamp. Heat is applied to liquefy the adhesives 19 and 21. Axial pressure to the pole cap 17 expels adhesive 21 at the lower end of the magnet 10 to fill the small channel made available between the outer surface of the magnet 10 and the side wall of the recess 13. The adhesive is thermosetting and is preferably a resin compound.
Patent GB-405624-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1932-05-07
Abstract: 405,624. Fluid-actuated and manually-actuated valves. SHAW, J. C., 2, Kingston Avenue, Great Sankey, near Warrington, Lancashire. May 7, 1932, No. 13196. [Class 135.] A multiple-way valve 28, Figs. 1 and 4 for controlling the supply of cooling-water to the condenser 19 and the generator - absorber 1 of a refrigerating machine comprises a water inlet 28f and outlets controlled by leather lift pads 28b, Fig. 4, on the ends of the valve plunger which may be displaced either manually through a crank engaging a recess 28a in the piston and operated through a shaft controlled by a handle 33, or automatically through a thermostat 40 in the generator-absorber. The supply of oil or gas to the burner of the generator-absorber is controlled by a valve having a plunger 57x, Fig. 8, the underside of which is subjected to the pressure of the cooling- water, while its rod 66 controls the ball valve 64 regulating the flow of fuel from the supply pipe 62 to the burner pipe 63x. Leakage of fuel from the valve chamber is prevented by a water seal 67.
Patent GB-1461207-A (GB)
Title: Electrical circuit for indicating the presence and direction of flow of an electrical current
IPC: A47B27/14
Filed: 1975-04-01
Abstract: 1461207 Sensing direction of current flow: automatic exchange system STANDARD TELEPHONES & CABLES Ltd 1 April 1975 13201/75 Headings H3T and H4K Current flow through a coil L, Fig. 1, adjacent to a Hall plate E, produces an output voltage of a polarity that corresponds to the direction of current flow, which voltage is amplified OA1 and applied in parallel to a lower threshold ( - 1À67V) detector OA2 and an upper threshold (+ 2À39V) detector OA3, so that depending upon the direction of current flow through the coil L one of the two leads V1, V2 is raised in potential (to + 3À0V) from its normally quiescent level (0À25V). As shown the current through the Hall plate is maintained substantially constant by a NPN transistor T: in a modification (Fig. 2, not shown) a PNP transistor is used. The circuit is of particular use in an inter-exchange junction supervisory circuit (Fig. 3, not shown) for detecting current reversals on the junction.
Patent GB-132354-A (GB)
IPC: B23K35/365
Abstract: 132,354. Boorne, W. H. Sept. 12, 1918. Heating by electricity.-An electrode for arc welding or cutting metals consists of a metal core coated with a mixture of magnesite, aluminium, and silicate of soda, which are mixed with water before application. The mixture, in use, is converted into gases and a powdery deposit, easily removable by a wire brush or a stream of water. Suitable proportions are : 10 parts calcined magnesite, 1-2 parts aluminium, 5 parts water, and 20 parts sodium silicate solution of 10 per cent strength. The solid materials may be 60- mesh fine. The mixture may be heated to 180‹ F., and is brushed or otherwise applied to the warmed wire core, which is then allowed to dry.
Patent GB-567025-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C35/02
Filed: 1943-08-16
Abstract: 567,025. Thrust bearings. SMITH, J. STEWART-, and BURNS, Ltd., J. Aug. 16, 1943, No. 13238. [Class 12 (i)] A two-part or segmental bearing for railway axles, rolling mills or sugar crushers has one or more endthrust parts slidably moved into or out of interlocking action with the main bearing or a support therefor. The bearing 5 consists of fine cotton fabric impregnated with a synthetic resin and has dovetail engagement 3 with the main casting 1. Journal bearings 4 of similar material are received in grooves 2. Bearing 5 retains member 4 in position and is itself maintained curved edge, or it may be screwed or otherwise secured to the casting.
Patent GB-418751-A (GB)
Title: Improvements relating to pottery and other kilns or ovens
IPC: F27B9/08
Filed: 1933-05-06
Abstract: 418,751. Pottery &c. ovens. INTERNATIONAL FURNACE EQUIPMENT CO., Ltd., and BAILLY, L., Clement Street, Parade, Birmingham. May 6, 1933, No. 13279. [Class 51 (ii).] A pottery &c. oven comprises an enclosing structure e spaced from internally-heated side walls b, and a roof c, which, together with the hearth d, form the heating-chamber a. The intervening space f communicates through ports g with the lower part of the heating- chamber, and by means of steam or air injectors the oven atmosphere may be withdrawn from one side of the chamber and returned at the other. Alternatively, air may be admitted through the port i and delivered at both sides to the heating-chamber. As shown, the hearth d forms a conveyer for the goods, and the walls are adapted to be heated by combustion therein of gas and air, but internal electric resistance elements may be used.
Patent GB-132933-A (GB)
IPC: B65B1/24
Abstract: 132,933. Smith, A., and Southall, C. Nov. 14, 1918. Packing and filling granular and like materials into receptacles.- In machines in which the receptacle is raised by a counterweighted support to a filling-nozzle provided with a feed-screw or plunger, a friction brake is provided for resisting the descent of the support, the arrangement enabling any desired density of packing to be obtained without the use of a large counterweight. In the arrangement shown, the chain d, connecting the counterweight c and the spindle a of the support, passes over a pulley e, which is connected by a one-way clutch to a drum f, engaged by a brake band g, the clutch being arranged so that the brake is operative only during the descent of the platform. The brake band is connected to a lever h, which is connected by a link j to a toggle i for controlling the feedscrew, an adjustable weight o being connected to the toggle-pivot. The adjustable weight may act directly on the lever h. In operation, when the spindle rises, a projection l engages and straightens the toggle, thus causing the feed-screw to be started and the brake to be applied. The pressure of the feed-screw then causes the platform to descend in opposition to the brake until a projection n returns the toggle to the position shown and thereby causes the feed-screw to be arrested and the brake to be released.
Patent GB-1376305-A (GB)
Title: Print hammer assemblies
IPC: B41J9/38
Filed: 1972-03-14
Abstract: 1376305 Magnets; electromagnets INTERNATIONAL COMPUTERS Ltd 14 March 1972 [5 May 1971] 13299/71 Heading H1P [Also in Division B6] A print hammer assembly comprises a flat coil 10 formed on a carrier 7 supporting a hammer head 12 and positioned in a magnetic field formed by a first pair 4a, 4b of coplanar permanent bar magnets and a second pair 5a, (5b, not shown), of coplanar permanent bar magnets located in a second plane parallel to that of the first pair, the magnets being formed of material containing rare earth metals. The magnets are polarized along an axis perpendicular to their planes, and opposed surfaces of adjacent magnets are of opposite polarity. The hammer 12 is actuated by feeding current to the coil 10 through supporting flexible struts 8.