baber/WOPTO huggingface dataset:
Patent GB-431927-A (GB)
Title: Improvements in or relating to devices for damping the cross fluxes in the slots of the armatures of commutator machines
IPC: H02K3/16
Filed: 1935-03-21
Abstract: 431,927. Dynamo - electric machines. SHEVLIN, J. T., 15, South Street, Finsbury, London.-(Siemens-Schuckertwerke Akt.-Ges.; Siemensstadt, Berlin) March 21, 1935, No. 8904. [Class 35] Armatures, dampers on cores of.-Cross fluxes in the slots of commutator machines are damped by plates having a portion located laterally of the conductors and enlarged heads extending beyond the slot conductors towards the mouths of the slots. In the form shown in Fig. 4, the plate has an enlarged head v and the web of the plate is at one side of the slot, but where there are two conductors side by side the web may extend between them so that the damper is of approximately T-shape. In the form shown in Fig. 7, the damper k is subdivided and the outer bars may extend into grooves in the slot sides. In other forms wherein the damper is of U-formation, it may be in one piece or formed of two inverted L-shaped bars, in each case the part or parts nearer the slot mouth being thicker.
Patent GB-778154-A (GB)
Title: Driving mechanism for conveyor chains
Inventor: LIMBRICK GEORGE
IPC: B65G23/14
Filed: 1955-03-28
Abstract: 778,154. Endless driving chains for chain conveyers. NEW CONVEYOR CO., Ltd. Feb. 16, 1956 [March 28, 1955], No. 8948/55. Class 78 (1). A conveyer chain 3 is driven by dogs 9 on an endless driving chain 6 which is supported on a guide track 8 curved to an arc of uniform radius, the pitch of the dogs 9 being slightly less than that of the conveyer chain, or slightly less than a multiple of that of the conveyer chain. The radius of the track 8 is so chosen that two or more of the dogs are in engagement with the chain at any one time. A further track 10 is also provided for guiding the return run of the chain 6 and is adjustably mounted relative to the track 8 for adjusting the tension of chain 6, the adjustment being effected by means of nuts 11 carried on studs 12 interconnecting the two tracks.
Patent GB-867133-A (GB)
Title: Stressed-panel fastener
IPC: B64C1/00
Filed: 1959-03-16
Abstract: 867,133. Stud and socket fastenings; cotters. PRICE CORPORATION, D. W. March 16, 1959 [June 9, 1958], No. 8959/59. Classes 44 and 89(2). A fastener for connecting a stressed pane 12, for example, to a member 13 comprises a barrel 14 carrying laterally movable ball detents 23 adjacent one end, the barrel 14 having a first plunger 24 slidably disposed therein, and a housing 38 for slidably receiving the barrel 14 and having a second spring-loaded plunger 54 slidably disposed therein and adapted to extend into the barrel 14, when the latter is engaged in the housing 38, to move the detents 23 into extended positions in which they engage a shoulder 46 in the housing 38, Fig. 2 (not shown); for disengaging the barrel 14 from the housing 38, the first plunger 24 is adapted to engage the second plunger 54 for moving the latter against the action of its spring 57 permitting inward movement of the detents 23, the barrel being then ejected from the housing by a spring 53. The barrel 14 is loosely retained in an opening 15 in the panel 12 by means of a retaining ring 17 and the detents 23 and the plunger 24 are loosely retained in the barrel by peening over corresponding parts of the latter. The housing 38 is externally threaded for adjustably mounting in a shell 33 which is secured to the member 13, e.g. by rivets 34 and the housing has slidably disposed therein an apertured retainer 52 in which is slidably journalled the plunger 54. In a second embodiment, Figs. 5 and 6 (not shown), a barrel is secured to a first member and a housing is secured to a second member to be connected to the first member and ball detents retained in the barrel engage in an internal annular groove in the housing.
Patent GB-198500-A (GB)
Title: An improved aeroplane landing stage for attachment to a ship
IPC: B64F1/04
Filed: 1922-03-29
Abstract: 198,500. Duggan, J. V. March 29, 1922. Vessel for carrying aircraft. - An overhead landing stage for aircraft adapted to be attached to a ship's side comprises a pair of booms A knuckle jointed at their heels to the ship's side, rigged with single or double topping-lifts, and stayed by guys B, B<2>. Running wire jackstays Care suspended between the booms and support a number of transverse arrester wires C<1> spread by a wire E and furled and unfurled ,along the jackstays by wires F, F<1>, F2, F<3>. The aeroplane is fitted with a strong spring hook at the top and when required to land flies underneath the device and engages with its hook the arresting wires, the shock being taken up by spring bollards.
Patent GB-758597-A (GB)
Title: Improvements in or relating to fire extinguishers
Inventor: ANDERTON SIDNEY BERNARD
IPC: A62C5/00
Filed: 1954-03-29
Abstract: 758,597. Fire-extinguishers. NU-SWIFT, Ltd. March 29, 1955 [March 29, 1954], No. 9052/54. Addition to 629,072 and 680,777. Class 47 In a fire-extinguisher as described in Specification 680,777 comprising an outer container for a liquid and an inner container 1 provided with a gas cartridge 5 and a plastic bag 14 filled with foam-producing agent, the bag 14 is provided with a stopper 15 which is blown out. or a seal which is broken, when pressure is applied to the bag upon release of the gas. The seal may be formed by cementing the sides of the neck 16 of the bag together, or by a separate member connected over a hole in the bag.
Patent GB-127910-A (GB)
Title: Improvements in Balloons.
IPC: B64B1/40
Filed: 1917-06-23
Abstract: 127,910. Aeronautical Instrument Co., and Brewer, G. June 23, 1917. Aerostats. - In balloons of the kind described in Specification 125,161 provided with an elastic section to allow expansion and contraction of the balloon, the elastic section is composed of two or more longitudinal parts 1, 2 of indiarubber secured to the balloon fabric 3, 4, which is formed into loose pleats 5, 6. Cross elastic stays 7 may also be provided. Similar cross-stays may be applied to the balloon described in the Specification mentioned above.
Patent GB-1080574-A (GB)
Title: Screws and steel therefor
Inventor: SUMMERTON JOHN MICHAEL
IPC: C22C38/44
Filed: 1965-03-03
Abstract: Self-taping screws having cold rolled threads and upset heads are made from stainless steel, containing 0.1% to 0.25% carbon, 14.0% to 17.5% chromium, and from 5.5% to 7.0% nickel, preferably 0 to 3.5% molybdenum, and the balance, apart from impurities, being iron.
Patent GB-718542-A (GB)
Title: Improvements in gelatinising and plasticising agents
IPC: C08K5/32
Filed: 1952-04-10
Abstract: Synthetic resins are plasticized by incorporating a nitration product of polycyclic hydrocarbons obtained by selective extraction of petroleum with furfurol.  The resins may be polymers of vinyl chloride, vinyl acetate, vinyl chloroacetate, vinyl alkyl ethers, vinyl alkyl ketones, vinyl alkyl thio-ethers, vinyl acetylene, divinyl acetylene, acrylic acid esters, methacrylic acid esters, styrene and isobutylene.  In an example, 60 parts of polyvinyl chloride are mixed with 40 parts of a product obtained by nitrating at 90 DEG C. petroleum extracted with furfurol, and the mixture treated on rolls at 160 DEG C.ALSO:Chlorinated rubber or natural resin is plasticized by incorporating a nitration product of polycyclic hydrocarbons obtained by selective extraction of petroleum with furfurol. Preferably the product is obtained by extracting petroleum with furfurol, reacting with 98 per cent. nitric acid at 90 DEG C. and then heating to 140 DEG C. until foaming ceases.
Patent GB-1011644-A (GB)
Title: Apparatus for and a method of melt-spinning poly-caproamide filaments
IPC: D01D5/092
Filed: 1964-03-04
Abstract: 1,011,644. Melt-spinning polycaproamide filaments. ALLIED CHEMICAL CORPORATION. March 4, 1964 [March 4, 1963], No. 9186/64. Heading B5B. An apparatus for melt-spinning epsilonpolycaproamide filaments comprises a vertical cylindrical spinning chamber or shaft 1 (Fig. 1) closed at the top by a horizontal spinneret 2 having a multiplicity of spinning orifices 3. Aspiration means comprise an annular exhaust chamber or exhaust manifold 4 surrounding the upper end of the spinning chamber and provided with one or more exhaust ports leading to a vacuum pump. The chamber 4 communicates with the chamber 1 through a horizontal ring of holes 5 which are screened by a baffle 6. A point E in the lower edge of the baffle 6 is preferably so positioned with respect to the nearest hole C of the ring of holes 5 and with respect to a point P in the axis of the chamber 1 and at the same level as the holes 5 that the angle CEP is 90 to 170 degrees. Cooling gas enters the spinning chamber 1 through the horizontal rings of holes 9 the upper row of which, designated I is at such a level that the angle IPO is 45 to 120 degrees, O designating the spinneret orifice (of the outermost ring of orifices) directly above I. Contact sealing means 10 close below the annular chamber 4 comprise an annular lip 14 accommodated in an annular horizontal groove 11 containing a non- volatile inert liquid 15. Alternatively the groove may contain a gasket of the O-ring type consisting of soft or resilient material. The major portion of the cooling gas entering the chamber 1 through the inlet holes 9 descends towards the bottom of the chamber and is discharged through the outlet 12. The minor portion of the cooling gas flow is drawn up the chamber and carries with it through the holes 5 volatilized monomer given off by the molten freshly extruded fiilaments.
Patent GB-579599-A (GB)
Title: Improved spark plugs
IPC: H01T21/02
Filed: 1945-04-13
Abstract: 579,599. Spark-plugs. GENERAL MOTORS CORPORATION. April 13, 1945, No. 9209. Convention date, April 17, 1944. [Class 7 (iv)] A spark plug has a metal shield 6 fitting into the casing member 5 and has spaced projections 15 defining channels for bonding metal 8 between the shield and casing. A C- shaped resilient washer 12 localised beneath the end of the shield engages a metallic gasket 13 and holds the insulator 9 against a gasket 14 on shoulder 10 when the plug parts are assembled by a press-head B which may operate as described in Specification 564,884. While the parts are under compression a ring of bonding material 7 is fused by means of an induction heating coil D and the joint then cooled rapidly by water from a conduit C. In some cases circumferential ridges 17, Fig. 3, may be located below the ridges 15 to prevent flow of brazing metal beyond the shield. Instead of longitudinal ridges, spur-like projections may be formed on the shield members or all the ridges may be circumferential with a layer of brazing above the top,ridge. The ridges on spurs may be on the casing instead of the shield.
Patent GB-659123-A (GB)
Title: Improvements in or relating to carrying devices for infants
IPC: A47D13/02
Filed: 1949-04-05
Abstract: 659,123. Seats. PIKE, B. April 5, 1949, No. 9210. [Class 52 (ii)] A carrying device for infants: comprises a looped strap 1 of webbing &c. folded or doubled at opposite parts, seat 2, preferably with a waterproof cover 3, secured across the looped strap 1, straps 4 attached to the looped strap 1 and passing under the seat 2 to support same, and end loops 5 with buckles 6 for a carrying strap 8.
Patent GB-693039-A (GB)
Title: Improvements relating to recording and reproducing apparatus for radio receivers
IPC: G11B15/46
Filed: 1950-04-17
Abstract: 693,039. Magnetic recording and reproducing apparatus. MORTIMER, E. W., TOVEY, A., and GARRARD ENGINEERING & MANUFACTURING CO., Ltd. March 20, 1951 [April 17, 1950]. No. 9335/50. Class 40 (ii). [Also in Group XL(c)] A tape or wire recorder-reproducer for combination with a radio receiver whereby received programmes may be recorded and subsequently reproduced by the receiver comprises a tape or wire driving roller operative during recording, freely mounted on a driven spindle and being connected thereto by a clutch which disengages during rewinding. The recorder-producer described comprises a reel feeding a tape through an erase head and a recording and reproducing head, round a guide roller to a driving wheel co-operating with a spring biased rubber wheel to the take up reel (Fig. 1, not shown). The driving wheel 9 is rotatably mounted on a hollow spindle 15 which is driven by a motor 11 through a friction wheel 15 and a flywheel 14 secured to the spindle. A pulley 16 rotatably mounted on the spindle drives the take-up reel 2 through a coiled belt 17. A rod 28 mounted within and revolving with the spindle is provided with pins 20 and 27 which normally engage pins 19 and 26 in the driving wheel and pulley respectively but which when the rod is moved to the right during rewinding by means of an electromagnet 22, disengage the wheel and pulley from the spindle and the flywheel. A separate rewind motor is provided and the take-up reel drives through gears a control disc which revolves once during the length of the reel, the disc carrying a pin which actuates limit switches when either end of the reel is reached. The switches interrupt the motor circuits and extinguish, record and rewind lamps. A control switch is provided having "Record," "Off" and "Playback" positions. In the " Off " position of the switch the tape is automatically rewound onto. the rewind reel, the electromagnet disengaging the two pin clutches. In the " Playback " position a preamplifier is used. Contacts of the switch: also control the. erase and bias oscillators. A further switch may be provided to enable the recording to .be stopped without causing rewinding and this switch can also control the pre-amplifier filaments and the erase oscillator. It is stated that the limit switch could alternatively be controlled from a gear associated with the rewind motor, and that a time switch could be fitted so that a particular programme could be recorded while the apparatus is unattended.
Patent GB-253278-A (GB)
Title: An improved "servo" brake-operating mechanism for motor-vehicles
IPC: B60T13/06
Filed: 1925-04-08
Abstract: 253,278. Murray, T. B., and Albion Motor Car Co., Ltd. April 8, 1925. Actuated or applied by running whell.-Relates to brakes assisted by servo-mechanism and comprising a floating lever connected to the brake pedal to the brake, and to the servomechanism, the connection between the servo-mechanism and the brake being independent of the floating lever and contrived to render the force applied by the servo-mechanism unidirectional. The servo-mechanism comprises a disc driven from the road wheels of the vehicle and a second disc 11 adapted to be shifted axially into engagement therewith by a bell-crank lever 21 having a link connection 9 to the floating lever 2. The unidirectional device comprises two racks 12 engaging a pinion 13 on the disc 11, and connected by slotted links 14 with a lever 7 pivoted on the vehicle frame and connected to the brake and the floating lever 2. The unidirectional device may alternately comprise a chain looped over a ,sprocket on the disc 11 with springs to take up slack in the chain, or a short crank secured to the disc 11 and connected by a long connecting-rod to the lever 7, the brake being released when the crank and rod are aligned. According to one of the Provisional Specifications, the servo-mechanism may consist of a brake drum and brake.
Patent GB-1034962-A (GB)
Title: Improvements in liquid cooled electrical machines
IPC: H02K9/193
Filed: 1963-03-08
Abstract: 1,034,962. Centrifugal pumps. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. March 8, 1963 [March 10, 1962; June 28, 1962], No. 9358/63. Heading F1C. [Also in Division H2] An impeller directly coupled to the shaft of an alternator serves to pump cooling water through the cooling passages of both stator and rotor. As shown, the pump impeller has two radial pumping passages 1A, 1B. Water or oil is drawn from tank 3, and part of it is directed by impeller 1A via outlet 11A and pipe 12 to the stator 13 and thence back to the tank, while another part is drawn through the rotor by ducts 8 and 9 by impeller 1B and returns via outlet 11B to the tank. In a modification (Fig. 1, not shown), the pressure chambers 10A, 10B of the two impellers are joined together to make a single delivery to the stator. A single, double-way impeller (Fig. 3 and 4, not shown) may be used to feed both circuits. Passages 22 (corresponding to impeller 1B of Fig. 2) draw water from the rotor while passages 21 (corresponding to impeller 1A) deliver the main body of water to the stator, the outputs of both impellers being delivered to the stator in this case. The blade-angle for impeller 1A is modified by blade-thickening, as shown. In another modification (Fig. 5, not shown) the water is forced rather than drawn through the rotor to avoid cavitation. Impeller 1 draws water from inlet 5, forces it into a stationary guide member 33, from whence it passes to the rotor by annular passages 34, and also through a by-pass 36, to feed the stator at 37 in combination with the returning rotor water at 35. The same effect may be achieved by pressurizing the whole system by putting the tank 3 above the machine, e.g. on its casing, or by means of a head of nitrogen in tank 3. Alternatively, (Fig. 6, not shown), the pump may comprise two ports, a main pump which delivers water under pressure to both the stator and rotor circuits, the flow division being adjustable by valves, and an auxiliary pump which draws the used water from the rotor. Reference has been directed by the Comptroller to Specification 916,762.
Patent GB-774831-A (GB)
Title: Improvements in electric heating units
IPC: H05B3/48
Filed: 1955-03-31
Abstract: 774,831. Electric heating elements. GENERAL ELECTRIC CO. March 31, 1955 [April 26, 1954], No. 9450/55. Class 39(3) A sheathed wire heating element for heating metal objects or heating loads in direct contact with the sheath, e.g. utensils on a surface heating unit of a cooking range, comprises a resistance conductor having a high temperature co-efficient of resistance, and a composite enclosing sheath consisting of an inner layer or sheath of a metal having high thermal conductivity and an outer layer or sheath of a heat and corrosion resistant metal. As shown, a resistance conductor 1 composed of substantially 97 per cent iron and 3 per cent silicon is embedded in magnesium oxide 4 which is compacted so as to readily conduct heat from the conductor 1 to a sheath 2 which may be of copper. The oxide is compacted by reducing and elongating the sheath 2 which may be effected by swaging or rolling, the sheath then being fitted into or encased by a sheath 3 of alloy which may consist of 80 per cent nickel. 14 per cent chromium and 6 per cent iron. The outer sheath is then reduced and elongated to cause it to tightly grip the inner sheath 2. Each end of the element is hermetically sealed by means of a metal sleeve 6 which may be welded or silver soldered to the sheath 3 and secured to a ceramic bushing 9 by titanium hydride solder, a tube 10 being welded to a terminal 5 and sealed to the bushing. Aluminium or silver are also specified for the inner sheath and the outer sheath may be of stainless steel or a chromium nickel alloy. Pure nickel or a nickel-iron alloy are also specified for the resistance conductor. Specications 516,285 and 687,535 are referred to.
Patent GB-1391541-A (GB)
Title: Information carrier of disc form for sound and/or video signals
IPC: G11B7/125
Filed: 1972-03-01
Abstract: 1391541 Record carriers; optical playback apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 March 1972 [4 March 1971] 9487/72 Heading G5R [Also in Divisions G2 and G1] A disc record carrier 1 has spiral or concentric tracks 12, 13 in which audio and/or video information in the form of frequency-modulated or phase-modulated signals is stored as a crenellated structure 3-7 in which the upstanding blocks 3, 5, 7 have different lengths and spacings and have a height comparable to optical wavelengths. The record may be of, e.g. polyvinyl acetate, made lithographically, or by photographic and etching methods. The blocks 3, 5, 7 preferably have a coefficient of reflection or transmission equal to that of the intervening areas 4, 6. The record 1 is played back optically by transmission or reflection as the disc is rotated. As shown, light from a source 20 passes through a polarizer 21, a Wollaston prism 22 and the record 1, and is focused on a detector 23 by a lens 25 via a second Wollaston prism 24 and an analyser 26. The prism 24 splits the beam into two diverging perpendicularly-polarized beams with intensities which may differ due to the varying path length of the light in the record 1. The prisms 22, 24 may be replaced by Savart plates having the same function. In an alternative arrangment, Fig. 3 (not shown) a Michelson interferometer (32) splits the transmitted beam. In a further embodiment, Fig. 4 (not shown) the record is illuminated with a collimated beam to produce diffraction. The + 1st and - 1st order beams are phase-shifted by 90 degrees relative to the zero order beam by a phase plate (68) and are combined by a lens (67). The tracks may alternatively be scanned by a focused point of light, Fig. 6 (not shown). In a reflection arrangement, Fig. 5 (not shown) light scattered by the side faces of the blocks 3, 5, 7 is focused on a detector (73) by an annular lens (75). A suitable light source is a laser, photo-diode or gas discharge tube. A suitable detector is a photomultiplier or solid-state device.
Patent GB-498505-A (GB)
Title: Bolt locking device
IPC: F16B39/36
Filed: 1937-04-05
Abstract: 498,505. Locking washers and nuts. SANDER, E. April 5, 1937, No. 9581. Void. Convention date, April 3, 1936. [Class 89 (i)] The outer frusto-conical surface of a member 2 in the form of a ring gapped at 3 coacts with the inner frusto-conical surface of a ring 1, Fig. 1, to form a locking washer, or with the coned bore of a nut 5, Fig. 3, or cap nut. Alternatively, the member 2 is formed as part of a double cone, to coact with a ring and nut. In other forms; a frusto-conical plate 8 is secured to the base of a casing 7 over the nut 5; Fig. 5, or to the top of such a casing ; a member 2 coacts with a coned aperture in the base-plate 9 of a casing 7, Fig. 6, or in the top of such a casing or in a strap placed over the nut; the member 2 is formed as a double coned plate 9, Fig. 7 ; a construction as in Fig. 1 is secured in a plate 17, Fig. 12. The member 2 or 8 may be of fibre or hard rubber or of the materials known under the Registered Trade Marks "Bakelite," " Neolyte," "Turbax."
Patent GB-784675-A (GB)
Title: Improvements in and relating to slipper foot protectors
IPC: A43B3/10
Filed: 1956-03-27
Abstract: 784,675. Boots &c. SCHOLL MANUFACTURING CO., Ltd. March 27, 1956 [March 31, 1955]; No. 9596/56. Class 17(2) A slipper type foot protector, which may be worn inside another shoe or separately, comprises a soft knitted fabric upper 3 preferably of twisted stretchable yarn and a soft resilient cushioning sole 1 preferably of foam latex stitched at 4 thereto. The sole may be covered on either or both sides with thin smooth material such as silky finished fabric 2. The foot opening may have a simple folded margin 8 enclosing an elastic strip 9 and at the heel end a heel guard or counter stiffener 10 of thicker and stiffer material such as felt or foam rubber. The guard 10 shaped as shown in Fig. 3 is unattached at its lower edge and is provided with ventilating perforations 11.
Patent GB-602342-A (GB)
Title: Improvements in alloys
IPC: C22C9/04
Filed: 1945-04-17
Abstract: A manganese brass alloy having the property of excellent retention of composition during manufacture and remelting has the following composition.-Zn 15.0-37.5 per cent, Mn 7.5-30.0 per cent, Si 0.25-2.0 per cent, Cu and impurities forming the remainder.  The alloy may contain 0.1-2.0 per cent Al and/or 0.1-3.0 per cent of Pb and/or up to 0.15 per cent Fe.