baber/WOPTO huggingface dataset:
Patent GB-645858-A (GB)
Title: Improvements in or relating to vegetable cleaning machines
IPC: A47J43/24
Filed: 1948-02-10
Abstract: 645,858. Potato &c peelers. MABBOTT & CO., Ltd., NELSON, W. E., JORDAN, N. S., and HASLAM, R. Feb. 10, 1948, No. 3820. [Class 28(ii)] In an abrasive vegetable peeler the rotated bottom plate a has a curvature at its clearance space e substantially the same as the curvature of the fixed container b so as to lessen the chance of nails or peelings getting wedged in the clearance, and the centre of the plate is level with or lower than its edge. The combined curvature may be a circular arc or arcs. The plate a may be convex at its centre and has holes f for lifting it out and for drainage. It has a cast-on crossbar k to move the contents around.
Patent GB-585298-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B27/02
Filed: 1945-02-16
Abstract: 585,298. Sewing-machines. BRITISH SEWING MACHINES, Ltd., and ARMSTRONG, E. W. Feb. 16, 1945, No. 3922. Drawings to Specification. [Class 112] Lock-stitching by shuttles.-In order to position the bobbin-case automatically so that its retaining finger engages the notch in the cover of the shuttle race or case when the bobbin is inserted, the cover is provided on its outer surface, on each side of the notch, with an integral or attached cam piece adapted to engage the bobbin-case finger as it is pushed in and to guide it to the notch. The cam surfaces also improve the stitching by guiding the thread smoothly to the notch.
Patent GB-794381-A (GB)
Title: Brominated organic acid
IPC: C07C51/363
Filed: 1956-02-08
Abstract: The invention comprises a method for making a  - bromo - b  - methoxy - isovaleric acid by the action of bromine, introduced in a single batch, in the presence of an agent capable of taking up hydrobromic acid, on a solution of dimethyl acrylic acid in methanol, said solution being cooled before and after the introduction of the bromine.  Preferably, the solution is cooled to 0 DEG  C. or below, is stirred vigorously during the addition of the bromine, and is subsequently allowed to stand at ambient temperature until the reaction is complete.  In an example, magnesia is used as the agent taking up hydrogen bromide.
Patent GB-536786-A (GB)
Title: Improvements in or relating to rock drill tools
IPC: B23B31/00
Filed: 1940-03-02
Abstract: 536,786. Percussive drills. DUNSTAN, W. March 2, 1940, Nos. 3962 and 3963. Convention dates, March 4, 1939, and May 11, 1939. Addition to 521,323. [Class 124] In a percussive drill tool in which the stem is surrounded by a collar consisting of an inner sleeve of rubber or like resilient material and a rigid outer casing with a non- cylindrical outer surface, as described in the parent Specification, the outer casing 4 is internally cylindrical and is preformed in hardened metal so as to avoid any deformation, whilst the inner sleeve 5 has a bore of less diameter than the stem 2 and is expanded by a partly conical mandrel 11 when forcing the stem into the bore. Alternatively, the rear end 8 of the casing 4 may be closed and the front end fitted with a screwed gland 16 having a dished surface 18 for compressing the sleeve 5.
Patent GB-547835-A (GB)
Title: Hammers
IPC: B25D1/04
Filed: 1941-03-24
Abstract: 547,835. Hammers. JARRETT, J. N., and HATCH, F. W. C. March 24, 1941, No. 3977. [Class 61 (ii)] A claw hammer has the bifurcations of the claw 4 connected midway of their length to the head 1 by spaced arms 8 provided with equidistant nail head supports 9 adapted to be brought into operation successively on the nail during its extraction.
Patent GB-1103870-A (GB)
Title: A device for introducing radioactive pellets into a tubular receptacle
Inventor: ANDRE ROGER
IPC: G21C21/00
Filed: 1967-01-26
Abstract: 1,103,870. Handling radioactive material. COMMISARIAT A L'ENERGIE ATOMIQUE. 26, Jan., 1967 [2 Feb., 1966], No. 4012/67. Heading B4Q. A device for loading a receptacle 23 with radioactive pellets 26 comprises a base 1 carrying by means of a spindle 4 a centring member 6 of generally cylindrical shape. A screw 8 remotely driven by an arm 10 is threaded in the member 6 and has an end 12 extendible through a passage 17 provided in a support 13. The support 13 is normally locked to the member 6 by a flat-sided pin 18 rotatable by a lever 21. In use the member 6 is initially displaced through 180 degrees about the spindle 4 from the position shown in Fig. 2 so that the screw end 12 points upwards (Fig. 1, not shown) and the screw 8 is advanced so that the end 12 is flush with a conical entry 22 to the passage 17. At this stage the receptacle 23 and its holding member 24 are not in position. A pellet 26 is placed by a tongs on the end 12, the screw is advanced a distance equal to the thickness of the pellet and another pellet is placed in position, this procedure being repeated until the passage 17 is filled with pellets. The receptacle 23 is now located in the entry 22 and retained by the member 24 secured by a bayonet lock 25. The screw 8 is operated to push the pellets 26 into the receptacle and the member 6 is rotated to the Fig. 2 position whereupon the member 24 may be removed.
Patent GB-694249-A (GB)
Title: Lock for doors
IPC: E05B65/22
Filed: 1951-02-21
Abstract: 694,249. Doors locks. AKTIEBOLAGET ERMEX. Feb. 21, 1951 [March 1, 1950], No. 4180/51. Class 44 [Also in Group XXXIV] The sliding bolt of a door lock is mounted on rollers located in apertures in frames slidably positioned in grooves in the side of the bolt. The lock comprises a casing 1 having plain side walls 29, 30 and a bolt 10 formed adjacent the upper and lower edges with grooves to receive frames 38, 39 having openings to locate sets of four rollers 2, 16. The frames 38, 39 are somewhat thinner than the depth of the grooves and the rollers are somewhat thicker so that they project to bear against the plain inside faces of the side walls 29, 30. Pivoted at 8 in a space 40 in the bolt is a lever 7 having at one end a roller 25 bearing against a sloping surface on a fixed member 9. A stirrup 28 surrounds the lever 7 on the other side of the pivot, the stirrup bearing on the lever through a cradle 11 and rollers 27 located therein. The stem 18 of the stirrup is provided with a washer 35 against which bears a spring 33 this tending to tilt the lever 7 so that the roller 25 is forced against the sloping member 9, the reaction of which urges the bolt to the projected position. In the shot position the end 31 of the lever engages a wall of the keeper to prevent rattling. The bolt 10 is held in a retracted position when the door is open by a pin 23 located in a slot in an auxiliary bolt 19 which is spring loaded and has a notch to receive the pin 23 and release the bolt when it is forced in by contact with the keeper as the door closes. The bolt 10 is retracted by a gear wheel 15 engaging rack teeth 14 on the edge of the bolt.
Patent GB-566451-A (GB)
Title: An apparatus for treating carbon dioxide for extinguishing fire
IPC: A62C99/00
Filed: 1943-03-15
Abstract: 566,451. Fire-extinguishing. CARDOX (GREAT BRITAIN), Ltd. March 15, 1943, No. 4213. Convention date, March 13, 1942. [Class 47 (ii)] In a discharge device for extinguishing fire, liquid carbon dioxide under pressure is conducted into an elongated expansion chamber through restricted openings 10 arranged longitudinally with respect to the chamber, whereby the liquid is converted into snow and vapour, the inner surface of the chamber having a curved surface 13 arranged to deflect the snow and vapour and cause them, by centrifugal action to be separated into contiguous layers on their escape at the outlet 12 from the chamber. Preferably, a pair of contiguous chambers are provided, arranged so that the snow layers merge into one having a vapour layer on each side thereof. This device is especially suitable for extinguishing out-door fires in a high wind. Specification 566,302 is referred to.
Patent GB-708472-A (GB)
Title: Improvements in or relating to plain bearings
IPC: B32B15/01
Filed: 1952-02-18
Abstract: Aluminium base alloys for use in bearings consist of (1) Cu 4.5 per cent., Mn 0.6 per cent., Mg 1.5 per cent., Al balance; (2) Mg 2.5 per cent., Cr 0.25 per cent., Al balance; (3) Cu 0.25 per cent., Mg 1.0 per cent., Cr. 0.25 per cent., Si 0.6 per cent., Al balance; (4) Sn 6.5 per cent., Cn 1.0 per cent., Ni 0.5 per cent., Si 1.5 per cent., Al balance; (5) Cd 4.0 per cent., Si 4.0 per cent., Al balance; (6) Pb 1.0 per cent., Si 4.0 per cent., Al balance.
Patent GB-585317-A (GB)
Title: Improvements in or relating to cooling arrangements for the engines of aircraft
IPC: F01P7/10
Filed: 1945-02-20
Abstract: 585,317. Propelling aircraft. UNITED AIRCRAFT CORPORATION. Feb. 20, 1945, No. 4284. Convention date, July 1, 1944. [Class 4] [Also in Group XXVII] In a cooling arrangement of an aircraft engine in which the flow of cooling air through a cowl 15 surrounding the engine is assisted by a fan 25, means is provided for by-passing some of the air when less cooling is required so as to maintain constant the flow of air past the fan. These means may comprise flaps 30 allowing air to be drawn in behind the engine. If the fan is in front of the engine the flaps may also be in front and allow some air to escape. Alternatively an auxiliary cowl may be placed inside the cowl 15 and arranged with flaps at the front and rear ends to by-pass part of the air through an annular space between the cowls. Exit flaps 20 are also provided. The flaps may be operated manually, or automatically in accordance with altitude.
Patent GB-1415521-A (GB)
Title: Hot gas generator
IPC: F02C6/00
Filed: 1972-01-29
Abstract: 1415521 Gas turbine plant LANDON KINGSWAY Ltd 12 Feb 1973 [29 Jan 1972]  4309/72 Heading F1G The invention relates to a hot gas generator which comprises an air compressor 18, a combustion chamber 24 and a turbine 11 which is connected to drive the compressor through shaft 10. Gases discharging from the turbine 11 pass to a second turbine 30 which is connected to drive a water pump 36 through shaft 28. Water from the pump 36 passes to a heat exchanger 40 where it is heated by exhaust gases discharging from the second turbine 30 through line 42. The heated water or steam then passes through valve 52 and restriction 53 into the combustion chamber 24 where it mixes with the combustion gases. The humidified exhaust gases discharging from the second turbine 30 through line 42 pass to a point of use - for example they may be utilized for soil heating.
Patent GB-607809-A (GB)
Title: An improved flue block
IPC: E04F17/02
Filed: 1946-02-12
Abstract: 607,809. Flue blocks. SULICH, S. Feb. 12, 1946, No. 4311. [Class 87(i)] A cubical flue block is formed with a glazed cylindrical hole A, triangularsectioned corner holes C and grooves R on its side faces. A lateral hole D tapering inwardly may be formed in one face B to receive the end of a metal &c. flue pipe, or the face may be scored to permit this hole to be readily made by knocking out a piece of the material of the block.
Patent GB-575232-A (GB)
Title: Improvements in and relating to die-stocks for split dies
IPC: B23G5/04
Filed: 1944-03-09
Abstract: 575,232. Stocks and dies. VAMOS, N., and LEBOVITSH, D. I. March 9, 1944, No. 4396. [Class 83 (iii)] A die stock for use with split button dies and arranged to hold several sizes of die has a body with a back plate 2, Fig. 1, having an opening large enough to pass the largest diameter of work to be screwed but of less diameter than the smallest die to be held. Concentric circles are scribed on 'the plate, corresponding to the die sizes, to aid in positioning the dies. Sides 3 are formed integral with the back and are provided integrally, if desired, with a cover plate with a central hole large enough to admit the largest size of die to be used. Bosses 5 are tapped to receive the screwed ends of handles 7 drilled to receive the shanks of clamping-jaws 10. After clamping the handles are locked by screwed bushes 8. The die is further positioned and adjusted to size by a backing-up screw 14<1> in conjunction with a pointed screw 14. Holes 9, 16 are provided for tommy bars and pins 13 pass through retaining slots 12 in the jaws. In a modification the jaws are rotatably connected to the handles' by screws so that the handles positively retract the jaws on unscrewing, and in a further construction the sides 3 carry pairs of lugs with holes for pivot pins spaced according to the die sizes. The handles are pivoted on these pins and have ends with a cam action on the ends of the jaw shanks. Sleeves on the handles engage the ends of the lugs to maintain the handles in clamping position.
Patent GB-1347800-A (GB)
Title: Steam air cabinet finisher
IPC: D06F73/02
Filed: 1972-01-31
Abstract: 1347800 Conditioning garments McGRAW EDISON CO 31 Jan 1972 [24 March 1971] 4401/72 Heading D1L [Also in Division F4]  Apparatus for conditioning and removing wrinkles from garments supported on hangers comprises a walled cabinet defining an enclosure 12 for the garments, a loading and unloading access opening 21 to the cabinet closable by doors 22, a support rack 60 within the enclosure for holding the garments at the hooks 80 of the hangers, a steam inlet pipe 50 located in the lower part of the enclosure for the introduction of conditioning steam and a drying air blower (32) [Fig. 2, not shown] having an inlet 34 for removing air from the enclosure 12 and an outlet 35 opening into a passage 36 formed by side wall 16 and partition 38 for recycling the air back to the enclosure via heating element 44 and passage outlet 40, a shaking device 90 being provided in the enclosure to engage the garment hangers at the stem portions thereof to shake the garments during conditioning in a direction transverse to the longitudinal direction of the garments on the hangers via a shaker motor 98, a rotatable shaft 96 extending into the enclosure, eccentric plate 102 keyed to the shaft 96, connecting link 104 and shaker bar 92. As illustrated in Fig. 6 the support rack 60 for the garment hangers is preferably connected to the doors 22 of the enclosure by links 70 pivotally connected at 72 to a cross bar part of the support rack and at 74 to the doors so that on opening the doors the rack 60 is pulled to the front of the enclosure on rails 68 mounted in the side of the cabinet. The support rack 60 also includes a plate having a vertically disposed tooth arrangement with slot 78 for receiving the garment hangers and diverging faces 82 for easy placement of hangers into the slots. Shaking device 90 likewise includes a toothed plate 92, the plate being disposed horizontally to engage the stems of the hangers on rack 60 in the slots 108 and thus to shake the hangers when motor 98 is is switched on. The shaking of the garments during conditioning with steam and drying with hot air facilitates the circulation of these fluids round and into the garments and thus effectively removes the wrinkles therefrom. The apparatus may be programmed to carry out successive steaming and drying operations automatically.
Patent GB-553091-A (GB)
Title: Piezoelectric oscillators
IPC: H03B5/34
Filed: 1942-04-02
Abstract: 553,091. Valve-generating circuits. STANDARD TELEPHONES & CABLES, Ltd. April 2, 1942, No. 4405. Convention date, April 2, 1941. [Class 40 (v)] A piezo-electric controlled oscillator comprises an electron discharge device having input and output circuits, a piezo-electric element connected to the electron discharge device and means mechanically associated with both circuits for simultaneously varying their tuning in the same direction whereby a particular resonance frequency of the piezo-electric element may be selected for the oscillator. As shown the valve 10 has connected in its anode circuit a tuned circuit 18, 33 while between grid and cathode are connected a piezo-electric crystal arrangement 19 in series with a tuned circuit 30, 32 having a trimmer 34. Condenser 18 is adjustable to tune the anode circuit to any one of the several series of harmonic frequencies at which the crystal arrangement 19 can oscillate. In order that at each of the selected frequencies, the grid input reactance is positive, condenser 30 is equal to condenser 18 and is gang tuned with it while inductance 32 is made less than inductance 33. Thus circuit 30, 32 is always tuned to a higher frequency than that selected and so presents a positive reactance. The output is taken from terminals 27. The piezo-electric crystal arrangement 19 comprises two sets of quartz plates 44-46 and 48-50 each plate having a different fundamental frequency the complete assembly being thus able to generate six series of harmonic frequencies. A central terminal plate 42 is in contact with electrode plates 37, 39 against which the two sets of crystal plates are pressed by means of outer electrodes 36, 39 and springs 43, 47 which bear against outer terminal plates 40, 41 mounted on the inside of an insulating container. A switch 51 enables either of the sets of plates to be selected. although the two sets may be strapped for use in parallel.
Patent GB-171063-A (GB)
Title: Improvements in smokers' ash-trays
IPC: A24F19/00
Filed: 1921-02-08
Abstract: 171,063. Jacobs, J. A. Feb. 8, 1921. Ash-trays. - Relates to trays with sockets or cold metal surfaces for extinguishing the lighted ends of cigarettes &c. Fig. 3 shows an ash-tray a which may be combined with a menu or match holder h, or receptacle for other articles, and is formed with sockets d to extinguish the lighted ends f of cigarettes e. Fig. 4 shows an ash-tray combined with a menu holder i. Figs. 5 and 6 show a double inclined tray j, with sockets d, adapted to turn on a hinge l and be secured to the back of a seat or chair by screws through a clip or 'bracket m. Fig. 8 shows a conical tray with radial interrupted grooves b<x> and an inturned rim g<x>. In Fig. 10, parallel inclined channels b terminate in a vertical wall g. Fig. 11 shows a metal tray a with vertical slotted tubes s, and Fig. 13 a perforated plate t supported on uprights u.
Patent GB-876868-A (GB)
Title: Improvements relating to liquid dispensing apparatus
IPC: B05C11/11
Filed: 1960-02-10
Abstract: 876,868. Rotary pumps. COLOR CORPORATION OF AMERICA. Feb. 10, 1960 [Aug. 21, 1959], No. 4718/60. Class 110 (2). A rotary pump forming part of a liquid dispenser having a part-cylindrical discharge compartment 51, Fig. 3, communicating through an inlet 21 with a liquid supply hopper 12, comprises a vane 45 mounted on the axis of the compartment 51 and movable by an operating member 62 from an initial position in which liquid is allowed to flow into the compartment 51 to an intermediate position in which the vane isolates a sector of the compartment 51 and then through the compartment to expel the liquid through a valve controlled by movement of the vane, and an adjustable stop 64 limiting the movement of the vane. The valve comprises an annular duct 58 disposed in that part of the hub of the vane projecting forwardly of the latter and connecting the compartment 51 with a discharge channel 56 at the instant when the vane blade 47 contacts the surface 37 of the compartment 51. The vane is operated by a handle 62, the limit of movement of which, to adjust the quantity of liquid dispensed, is determined by the setting of an angularly adjustable stop'arm 64 in a notched plate 69, Fig. 2. Return movement of the vane after a dispensing operation produces suction within the chamber 51 so that any liquid trapped in the discharge channel 56 is drawn into the chamber 51 and, after the vane 45 becomes disengaged from the curved surface 37 but before it engages an oppositely disposed curved surface 38, an annular groove in the opposite end of the hub from the groove 58 connects the chamber 51. with the near side 55 of the vane and the trapped liquid is expelled into the chamber 51 dispersing any air bubbles trapped in the lower end of chamber 51. Liquid in the hopper 12 is agitated by a perforated plate 119 connected to a motordriven eccentric 116 or alternatively by a rotating paddle mounted in the supply duct 17 and projecting into the hopper 12. In a further embodiment, discharge is through a separate rotary plug valve 76, Fig. 11, which is so operated through a simple linkage system, by movement of the vane that, when the vane reaches the intermediate position, the valve is opened and the linkage broken, further movement of the vane then producing no further movement of the valve.
Patent GB-138719-A (GB)
Title: Improved apparatus for automatically closing doors
IPC: E05F1/10
Filed: 1919-02-26
Abstract: 138,719. McGregor, A., and Thomson, S. Feb. 26, 1919. Operating doors by springs; completing closing of doors; door-holders.-Spring devices operating in succession are provided, the first device or devices partly closing the door, and the second device or devices then coming into operation to complete the closure. The first device may consist of a helical spring i with ratchet adjustment j bearing on a lever l terminating in a spring catch m, which normally runs along a guide-plate n on the door B, but can be engaged with a rack o to hold the door open. The closure device may comprise a helical spring a with ratchet adjustment b attached by a bracket d to the door and having an extending end a<1> normally engaging in a slot in an upstanding bracket f. As the door swings to, the end a' is withdrawn from the bracket f by a slotted bracket h upstanding from the door post C, and the spring a becomes operative. The slot in the bracket f is preferably downwardly inclined, and the slot in the bracket h upwardly inclined. A spiral spring may be used as the closure device, one end being adjustably connected by a chain to the door, and the other end having sliding connexion along a triangular or slotted guide-piece on a pivoted arm for varying the leverage. Alternatively to catches for tripping the closure device, segmental, rack, or other gear may be used.
Patent GB-1202145-A (GB)
Title: Switch, cover and casing therefor
Inventor: BAUER WERNER ROBERT
IPC: H01H13/04
Filed: 1968-01-30
Abstract: 1,202,145. Retractive switches. ROBERTSHAW CONTROLS CO. 30 Jan., 1968, No. 4808/68. Heading H1N. A switch includes a contact 78, 80 on a blade 56 and movable between two stationary contacts 50, 54, blade 56 being of resilient sheet metal, two tongues 66, 72, one, 72, being stiff relative to the other, and the free ends of tongues 66, 72 being engaged in two notches 37, 39 in opposite sides of a metal rod 30 part of which is embedded in a wall of a casing 10, blade 56 having two parallel ribbon-shaped tension members 58, 60 formed integrally with and in the same plane as two flat transverse end members 62, 64 from which tongues 66, 72 extend, contact 78, 80 being provided on one end of blade 56 and operation of an operating member 90 causing a force on the other to move blade 56 from one stationary contact to the other with a snapping action. Blade 56 is returned to its original position on release of operating member 90 by retractive spring 94. A cover 22, Figs. 5, 6, 9, 10 (not shown), of a transparent polycarbonate is secured to casing 10 by a flexible integral arm 23 passing into an opening in wall 14 of casing 10 and hooking on to a ledge. Arm 23 is naturally bent and is partially straightened by a tool 111, Fig. 6 (not shown), so that it may be slipped over the ledge. In a second embodiment, Figs. 13-21 (not shown), the cover may be secured to the casing by an adhesive, by fasteners or by screws.
Patent GB-947502-A (GB)
Title: Improved shovelling machine
IPC: E02F3/28
Filed: 1961-02-09
Abstract: 947,502. Shovelling machines. DEVELOPMENT INDUSTRIAL PATENTS TRUST REG. Feb. 9, 1961 [Dec. 23, 1960], No. 4827/61. Heading E1F. In a shovel excavator the scoop 9 is pivotally mounted for rotation through approximately 90 degrees about a shaft 8 secured in the end of a Telescopic boom 3, 6, 7 at right angles to the longitudinal axis thereof. The boom is rotatably mounted in a support structure 2 pivotal about a horizontal axis 4 on and offset from the centre of a turntable 1 mounted on a selfpropelled chassis A.