baber/WOPTO huggingface dataset:
Patent GB-502879-A (GB)
Title: Improvements in lighters, igniters and similar apparatus
IPC: F23Q2/18
Filed: 1937-06-18
Abstract: 502,879. Igniters. BOYER, P. R. PRAT-. June 18, 1937, Nos. 17002 and 17003. Void. Convention dates, June 19, 1936 and June 1, 1937. [Class 75 (iii)] In an igniter, solid fuel, e.g. metaldehyde, is ignited by a frictional or electric spark-producing device. In one form, a manually-operable friction-wheel ignition device 13, Fig. 2, is mounted on a pivoted support 12, comprising a comb 14 for scraping the surface of a block of fuel 9a and pivoted at 16 to an operating member 15 having a stud 17 slidable in a slot 18. A rotatable screw 2 is adapted to mesh with helical teeth 7 on a slidable bar 6 for feeding the fuel, the support 3 for the screw 2 being movable by means of a screw 8 for releasing the bar as when re-charging. In a second form, the block of fuel 42, Fig. 10, is fixed to a slide 41 in a sheath 40 having a hook 45 for hanging it, when out of use, on the lower edge 46 of an opening 38 in a casing 37, Fig. 8, through which project a spring contact 25 and a contact 33 secured to a pivoted spring- controlled U-shaped member 32. The contact 25 is mounted on a plate 24 connected to a terminal 35 and the member 32 is supported by a plate 29 connected through a resistance 28 to the other terminal. The fuel 42 is ignited by rubbing it downwardly over a fixed comb 39 and the contact 33 so that the latter makes and breaks contact with the contact 25 to produce a spark. In a third form, powdered fuel is fed through a hopper 48 from a container 47, Fig. 11, into a cup 51 on a bar 50 slidable by means of catches 52 to bring the cup under a frictionwheel ignition device 54. In a fourth form, the block of fuel 56, Figs. 14 and 16, is pressed by a spring 59 against an abutment 60 in a slidable carrier 57 having an extension 61 carrying an operating knob 63. A pivoted lever 66 is rocked by means of a plate 69 to release the carrier 57 from a cup 67 thereon and, on moving the knob 63 to bring the end of the fuel block below an opening 83, a finger 62 rotates a cam plate 77, secured to the pivot pin 73 of the friction-wheel 72, until the cranked end 78 of the pin 73 passes' dead-centre and allows a spring 79 to rapidly rotate the cam plate 77 thereby driving a pawl plate 76 to rotate the wheel 72 for igniting the fuel. When the carrier 57 is pushed back into the casing the finger 62 returns the cam plate 77 to the normal position; and, when the lever 66 is returned to its normal position by. depressing the plate 69, the edge of the cup 67 scrapes the fuel.
Patent GB-352668-A (GB)
Title: Improvements in and relating to parachute apparatus
IPC: B64D17/00
Filed: 1930-06-02
Abstract: 352,668. Parachutes. HOFFMAN, E. L., Wright Field, Dayton, Ohio, U.S.A. June 2, 1930, No. 17031. [Class 4.] A parachute comprises a single flat non-circular canopy, suspension lines attached to the canopy and means offset from the centre of area of the canopy when inflated for laterally venting the air from one side in order to propel the parachute horizontally. The canopy 10 of a parachute, Fig. 2, is trapezoidal in shape and suspension cords 17 are so attached that when under load a lateral vent is formed as shown in Fig. 1. The canopy is composed of a number of panels 13 sewn together along their selvaged edges. The suspension cords 17 are attached at their upper ends to a fabric band 16 surrounding the periphery of the canopy; the panel seams may enclose these cords or the cords may be attached at points intermediate of the seams, reinforcing bands 19 being sewn to the canopy and extending upwardly to a vent opening 22. The suspension cords are reintorced by auxiliary shroud lines sewed to the canopy and band 16 attached to cords 17 so as to form a vee at their points of attachment. The vent opening 22 which is located at approximately the centre of area of the canopy is normally restricted by a fabric collar 23, Fig. 5, constricted at its upper end by a frangible cord 24 which is attached to the thimble 27 of the pilot parachute. Cords 25 attached at the periphery of the vent 22 are fastened to a ring piece 26 secured to the thimble 27 by turns of light wire 29. The attaching line 28 of the pilot parachute is attached to the canopy as shewn. The wire 29 is designed to break if excessive pressure be developed as a result of a high speed opening ; the cord 24 is broken in turn, allowing the collar 23 to open. Rapid opening of the main under the pull of the pilot parachute is stated to be effected by the arrangement of arcuate portions 33, Fig. 2, around the periphery of the main parachute arranged at an equal radius from its centre of area. Fabric bands 34 arranged at spaced points 35 converge to the point of attachment of the pilot parachute to ensure an even pull on the suspension lines at these points 35 with the result that the loose portions of the parachute of which the suspension lines are not so tensioned will readily catch the air. The suspension lines are so disposed with regard to the air vent shown in Fig. 1 that the horizontal propulsion effected by this means will be such as to carry the aviator sideways.
Patent GB-133475-A (GB)
IPC: B25D17/08
Filed: 1918-10-19
Abstract: 133,475. McKendrick, E., and Willock, Reid, & Co. Oct. 19, 1918. Loose tools and bits, retaining. - A retaining- device for the working tool of a pneumatic hammer or the like comprises a tapered sleeve b of leather, fibre, &c. open at both ends and with or without cut-away parts, and a reinforcing metal casing or framework c, the device being detachably secured in place by straps e or equivalent means. The device shown in Fig. 1 is used with tools having a tapered or rounded extremity, and that shown in Fig. 4 is used with shouldered tools.
Patent GB-618523-A (GB)
Title: Improvements in or relating to fluid flow systems
IPC: F16L55/24
Filed: 1946-06-05
Abstract: 618,523. Valves actuated indirectly. K.A.C., Ltd., and HENDERSON, W. P. June 5, 1946, No. 17129. [Class 135] A fluid flow system incorporates a detachable member normally forming part of the flow passage but which, on removal from the system operates a device to seal off the two free ends of the system and which, on re-insertion into the system, reverses the device to permit the fluid to flow again. In an embodiment, the detachable member 3, Fig. 1, holds a filter 20, and when the member 3 is in position, liquid flows from the pipe 1, through a rotary plug valve 4 and through apertures in a plate 9, into the member 3, through the filter, and out through the valve 4 to the outlet pipe 1A. The plate 9 is secured to the member 3 by pins 8 and it carries a projection 12 adapted to engage, in succession, two pivoted, spring-loaded, pawls 13, 13<1>, Fig. 3, carried by the valve 4. As the member 3 is unscrewed to detach it, projection 12 engages pawl 13, but as the latter cannot rotate due to its abutment against a fixed track 16, the valve 4 is forced round to the closed position. When this is reached, pawl 13 will have reached a gap 21 in the track where it can swing round and allow the projection. 12 to pass. When the member 3 is re-attached, pawl 13<1> will be operated in a similar manner to open valve 4. The latter is provided with a cover plate 17 running on balls 18 and held in definite positions by a ball detent 19. In a modification, the projection 12 is omitted and a ring with a cut-out portion actuates the pawls. The ring is urged upwards by a spring.
Patent GB-226124-A (GB)
Title: Improvements in and relating to means for controlling hydraulic variable speed gears
IPC: F16H61/42
Filed: 1924-02-19
Abstract: 226,124. Thoma, H. Feb. 19, 1924. Stroke, varying.-In a hydraulic variable-speed gear of the pump and motor type for driving a lathe, motor car, locomotive, hoisting apparatus &c., the controlling means regulate the speed of the driven member by adjustment of the pump up to its largest output, and thereafter by reducing the capacity of the motor and an indicator for the speed ratio is provided. The controlling means comprise a rotatable drum 86, Fig. 2, in which is a groove 87 with curved end portions, the groove being engaged by rollers 88, 89 carried by rods 90 connected to the stroke-varying devices of the pump and motor. An indicating pointer 91, Fig. 1, on the drum shaft moves over a scale 92, and an oil container 37 is provided on either the suction or pressure side of the pump.
Patent GB-356212-A (GB)
Title: Improvements in, or relating to, wearing apparel
IPC: A41D27/26
Filed: 1930-06-04
Abstract: 356,212. Coat stiffeners. DITCHFIELD, G. H., 55, Lancing Road, Sheffield. June 4, 1930, No. 17239. [Class 141.] The shoulder of a coat is stiffened and kept in shape by means of a flexible wire &c. stiffener e secured along the shoulder seam c, between the sleeve and collar, by means of stitching f, the end adjacent the sleeve being left loose. As shown, a pad h is arranged adjacent the scye g between the material of the coat and the loose end of the stiffener, said end being retained by a loop k on the pad. The stiffener is cloth-covered. The usual canvas interlining i hes over the stiffener. Alternatively, the stiffener may be accommodated in a pocket along the shoulder seam.
Patent GB-1176526-A (GB)
Title: Hot-Blast Stoves
IPC: F28D17/00
Filed: 1967-04-14
Abstract: 1,176,526. Hot-blast stoves. NIPPON KOKAN K.K. 14 April, 1967 [16 April, 1966; 28 March, 1967], No. 17286/67. Heading F4K. A hot-blast stove, in particular of the Cowper type, comprises a combustion chamber 2, heat accumulating chamber 4, a partition wall between said chambers, a dome 3 interconnecting said chambers, air and gas control valves 1, 9, 6 and 8 and a pile of preferably spherical members 10 made of a refractory material and having haphazard passages therebetween positioned at the top of said chamber 4, said pile increasing in depth in the direction from said partition wall This arrangement is said to prevent the one-sided flow of gas through the chamber 4. Perforations 11 are provided in the wall of the dome to form a layer of cold air in order to enhance deflection of the gas flow in said dome. Also located in the stove to prevent the biased flow of gas therethrough is a concave air guide 12 situated in a plenum chamber 5 at the bottom of chamber 4 and/or both circular and triangular posts for supporting the heat transfer mass in the chamber 4.
Patent GB-1092760-A (GB)
Title: Variable voltage-controlled frequency generator
IPC: H03K4/06
Filed: 1966-04-20
Abstract: 1,092,760. Triangular wave generators; frequency and amplitude modulation; pulse modulation. systems. WAVETEK. April 20, 1966 [May 19, 1965], No. 17350/66. Headings H3R, H3T and H4L. In an oscillator of the type in which the output of an integrator controls a switch which changes the voltage being integrated between upper and lower values each time a lower and upper threshold is respectively reached has its frequency controlled by a signal which changes the rate of change of integrator output equally for increasing and decreasing outputs. The output voltage from a switch circuit 20 is clamped by diodes 82, 84 and is integrated by a circuit comprising resistor 14, a transistor chopper type amplifier 10 and a feedback capacitor. The resulting output from the amplifier rises linearly until a 4-transistor hysteresis switch 16 changes over. This changes over the output switch 20, reversing the polarity of the voltage to the integrator. The amplifier output now decreases linearly until the hysteresis switch restores and initiates the next linear increase. The frequency and amplitude of the triangular wave thus generated is controlled by controlling the operative level to positive and negative clamping diodes 80, 82 and this is controlled symmetrically by phase reversing operational amplifiers 74, 76 having diodes in the feedback path to compensate for the characteristics of the clamping diodes. The input to the amplifiers is derived from a frequency adjusting potentiometer 58 and from modulation signal input terminal 60. An output switch selects a sine wave produced by a sine converter 40 or selects triangular or square wave outputs.
Patent GB-1022385-A (GB)
Title: Mechanical transmission between two number rollers
IPC: G06M1/14
Filed: 1964-04-27
Abstract: 1,022,385. Counters. A. ENGELMANN. April 27, 1964 [Oct. 28, 1963], No. 17358/64. Heading G4D.  As the units wheel of a counter is advanced, e.g. by successive operations of an electromagnet, pins 3 on the wheel engage with teeth to rock a lever 4 against the action of a spring 7. At carry the lever drops off the last tooth 3 so that pawl 6 drives a ratchet 2 of the tens wheel. The lever may be replaced by a spring-pressed rack. The pins 3 may be replaced by a mutilated gear wheel. Resetting. The numeral wheels may be mounted on a resetting shaft, one rotation of which advances the wheels to zero position.
Patent GB-178035-A (GB)
Title: Improvements in shift mechanism for typewriting machines
IPC: B41J11/14
Filed: 1921-06-25
Abstract: 178,035. Fairweather, W. C., (Underwood Typewriter Co.). June 25, 1921. Platen-shift mechanism; shift-key actions.-A member for locking the shift frame in the upper or lower position is connected to the shift frame by an interponent which is adjustable from the outside without tipping the machine. As shown, the locking-member consists of a lever 62 formed with a notch 64 for engaging a pin 65 on an interponent 66 which is pivoted at 68 to one of the brackets 24 carrying the shift-rail 22. The interponent is adjusted by means of a screw 72, having the head 73 arranged in an arcuate slot 74 in the bracket, and is secured by a screw 69 passing through an arcuate slot 70 in the interponent. The screws 74, 69 are accessible from the rear and side of the machine respectively. The rock-shaft 28 supporting the brackets 24 consists of a rectangular bar trunnioned on pins, and formed with tapering, rectangular or oval ends which enter necks on the brackets and are secured by soldering or the like,- securing-pins being dispensed with. Keys-locks.-The shift-key lever 31 can be actuated by a non-locking key 33 integral therewith, or by a locking-key 57 formed on a lever 39 which is pivoted on the lever 31 and is provided with a pin 53 co-operating with a latch 55 in the following manner. The lever 39 is normally held' in the raised position by a spring 49 and on depressing the non-locking key the pin 53 rides on a cam-face 54 on the latch; when the locking-key is depressed, the pin rides off the cam face and is caught by the latch. The latch is secured to a shaft 56 which can be rocked by a release key. The initial movement of the lever 39 may be limited .by a screw 51 passing through a slot 52. The spring 49 engages a flat 50 on the lever 39, and is formed on a bow 46, abutting on the keylever 31 and formed with a radial finger which is apertured to receive the pivot screw 42 of the lever 39 and is secured by a nut.
Patent GB-995080-A (GB)
Title: A pulverizing machine
IPC: B01F27/93
Filed: 1964-04-27
Abstract: 995,080. Ball mills ; continuous mixing appliances. E. NETZSCH, [trading as NETZSCH MASCHINENFABRIK GEB.]. April 27, 1964 [April 27, 1963; Jan. 18, 1964], No. 17442/64. Headings B1C and B2A. A mill comprises a housing containing comminuting elements and a rotary drive shaft on which are eccentrically mounted a plurality of substantially annular agitating elements. As shown in Fig. 1, housing 20 contains balls 22 and a shaft 25 which carries a plurality of agitating elements 27 in the form of ring-shaped annuli which are secured to the shaft by welds 28, Fig. 2. The material to be treated and dispersing medium are supplied from a tank 29 to the housing by means of a conduit 31 which contains a pump 32. Treated material is discharged through an outlet 33 provided with a sieve 36 to prevent escape of balls 22. In a modification, the agitating elements each have a trapezoidal-cross-section, the thickness of each element increasing in a direction outwardly of the drive shaft. In another modification, the end faces of each agitating element are corrugated. In a further modification, the agitating elements are of undulate shape. In another modification, the annuli are of different configuration and are spaced axially of the shaft by replaceable sleeves. In a further modification, the annuli are mounted on a horizontal shaft and are spaced from each other by dished springs. In another modification, Fig. 9, agitating elements 73 carried by a shaft 67 each resemble a portion, or the whole, of a helical convolution and each element has its axially spaced ends secured to the shaft. Each element slopes downwardly in a counterclockwise direction. In a modification of this construction, one or more of the elements slope downwardly in a clockwise direction and the remaining elements slope downwardly in a counterclockwise direction. In another modification, the agitating elements form a continuous helix. The helical agitating elements may be of polygonal or circular cross-section, may have end faces provided with radial or circumferential grooves and the peripheral surface of each element may be of cylindrical form and the internal surface of polygonal form.
Patent GB-705941-A (GB)
Title: Coin freed switch mechanism
Inventor: KILMINSTER SHIRLEY ANTONY
IPC: G07F5/10
Filed: 1951-07-24
Abstract: 705,941. Coin-controlled radio apparatus. HADLEY, V. J., and HADLEY, N. C., [trading as HADLEY SOUND EQUIPMENTS]. Oct. 23, 1952 [July 24, 1951], No. 17448/51. Class 27 A coin-feed switch mechanism, particularly for incorporation in a radio speaker unit in a hotel bedroom, comprises a mounting plate 4, a slide 8 movable sideways on the back of the mounting plate by means of a knob 7 extending through a horizontal slot in the plate, and a pair cf downwardlysloped walls 12 extending rearwardly from the slide to form an open-bottomed coin pocket. When a coin 18 is inserted through a coin slot in the mounting plate and a registering slot in the slide, it rests between the walls 12 on a bracket 15 carrying a switch 14 and when the slide is moved to the left by the knob 7, the coin bears on the dolly 13 of the switch, moving it to the "on" position and finally falling through a slot 16 in the bracket 15 into a coin box. Provision is made in the speaker unit for temporary switching-off and, when the room is vacated, the slide can be returned to the right by a member of the hotel staff, so that a pin 17 bears on the switch dolly and moves it to the "off" position.
Patent GB-667692-A (GB)
Title: Improvements in or relating to gasification of carbonaceous solids
IPC: C10J3/12
Filed: 1949-07-01
Abstract: 667,692. Water gas manufacture. HYDROCARBON RESEARCH, Inc. July 1, 1949 [July 2, 1948], No. 17451/49. Class 55 (i). In the gasification of a solid carbonaceous feed material, e.g. coal, lignite, coke or oil shale by endotherrnic gasification in a non- fluidized downwardly moving bed, particles of this feed material are mixed with particles of inert heat carrier material at a temperature substantially in excess of that required for gasification, and a bed of this mixture of solids is maintained in gasification zone 12; and a gas, e.g. steam preferably with oxygen is passed through pipes 14 through the solid bed to effect endothermic gasification. The residual ungasified carbonaceous material and the heat carrier are discharged at 17 and moved by conveyers 18, 19,. 22 to the upper part of a combustion zone 23, where a stream of oxygencontaining gas is passed from a pipe 28 down through the downwardly moving mixture, thereby burning the carbon therein almost completely and so heating the heat carrier, which is returned from the lower part by a pipe 10 to the top. of the gasification zone 12. The heat carrier is a substantially carbonfree residue of the carbonaceous feed material, or granular fused magnesium oxide, aluminium oxide, silicon carbide, zirconia, zirkite, mullite, sillimanite or alloy steel or a mixture of these. Ash may be separated from the heat carrier by inserting in the pipe 10 a separator comprising bars spaced along an incline over which the heat carrier passes, the ash falling between the bars. Carbon monoxide and steam pass off at pipe 16 at 2000‹ F. from the gasification zone, to which coal of ¢ inch diameter is fed through a pipe 11 with a star valve 9 from a container kept under pressure by an inert gas from a valve 8. Some of the residual carbonaceous material is removed through a pipe 21 at the end of conveyer 18. Flue gas from the combustion chamber 23 passes through a pipe 31 to a heat exchanger 27 where it heats air pumped by a compressor 26 through the heat exchanger and pipe 28 to the combustion zone. The flue gases finally drive a turbine 32, the power from which drives the compressor 26. The combustion chamber may be under 1000 lbs. per square inch pressure and if excess heat is liberated therein, cooling tubes 33 may be used for generation of steam.
Patent GB-867060-A (GB)
Title: Improvements in and relating to transformers
Inventor: PENN REGINALD
IPC: H01F38/12
Filed: 1959-05-22
Abstract: 867,060. Transformers. WIPAC DEVELOPMENT Ltd. Dec. 21, 1959 [May 22, 1959], No. 17607/59. Class 38 (2). A transformer suitable for use in an ignition system of the kind fed by discharging a capacitor connected to the primary winding through make-and-break contacts has a core 10 of ferromagnetic particles held in a binder or of ferrite &c. surrounded by a longer former 11 carrying a secondary 12 and a single-layer primary 13 connected to the secondary at 20 and to the lead-in 21. The inner layer 18 of the secondary has only a few turns. The h.t. lead passes out through holes 17, 15 in the former 11 and end plate 16. The paper layers 19 ... insulating the secondary winding layers extend to the end of the former as shown. The transformer is impregnated with solventless varnish.
Patent GB-202464-A (GB)
Title: Improvements in process of and apparatus for manufacturing malleable cast iron
Filed: 1922-06-27
Abstract: 202,464. Kubo, M. June 27, 1922. Malleableizing. - In malleableizing cast iron by passing an electric current through the castings while in a heated condition, the castings are embedded in appropriate material, hematite in the case of whiteheart castings, iron scale, bone dust, sand, or fireclay in the case of blachheart, or are immersed in a liquid bath and heated to a temperature materially below the melting point of cast iron, e.g. 900‹ C. whilst being subjected to the current. The process may be carried out in a furnace, Fig. 1, heated electrically by a resistance unit 15, the castings being packed in hematite in a fireclay tube 11. Electrodes 14 are provided in the tube 11 for passing a current directly through the articles, the current being controlled by a variable resistance 17. Other furnaces are described in which the heating is effected by gas or oil burners. In Fig. 3, the castings 32 are suspended, in a liquid bath 38 heated by gas or oil burners 35, and the current necessary for effecting the treatment is supplied to the castings through a regulating resistance 37. In a further modification, Fig.. 4, the castings are supported on a firebrick stand 41 heated by gas or oil burners 45, and the electrodes for passing a current through the castings are temporarily welded thereto. In treating castings having thick parts, the thinner portions are annealed in the manner described and the thick parts are annealed by passing directly therethrough a sufficiently heavy current to effect the heating.