baber/WOPTO huggingface dataset:
Patent GB-461513-A (GB)
Title: Improvements in or connected with electrical apparatus for heating air, particularly for apartments, rooms, ships' cabins, compartments of vehicles and the like
IPC: F24C7/00
Filed: 1935-09-12
Abstract: 461,513. Heating air by electricity. BURNSIDE, G. B. Sept. 12, 1935, No. 25317. [Class 39 (iii)] [Also in Group XIII] An air heating apparatus in which no visible illumination is produced by the actual electrical heating means D and separate luminous means E are provided, comprises a duct A containing the heating element D and the stream of hot air delivered therefrom passes over and in contact with the luminous means so that the heat delivered by the air appears to come from the luminous means, and auxiliary ducts B, C, and F are interposed between the exterior of the structure and the flow of heated air in and from the heating duct. The heating duct and auxiliary ducts are only connected in comparatively cool regions to stop tho escape of heat by conduction as described in Specification 414,475. When viewed from the front the apparatus presents the appearance of an open grate coal fire.
Patent GB-650643-A (GB)
Title: Improvements in or relating to rotary drills for mounting on vehicles
IPC: B28D1/14
Filed: 1948-09-29
Abstract: 650,643. Drilling-machines for mounting on vehicles. HOLMAN BROS., Ltd., and SWEET, S. Sept. 29, 1948, No. 25374. [Class 83 (iii)] A rotary drill for attachment to a vehicle and adapted to be driven by a power take off therefrom for drilling vertically into the material upon which the vehicle is resting has an automatic feed-mechanism for maintaining a constant predetermined axial thrust on the drill, and a manually-operable means, movable with or independently of the automatic feedmechanism, for feeding the drill to the surface of the work. The drill is supported by its casing 7 on the chassis 6, 41, Fig. 2, of a tractor and is driven by a chain from the tail-shaft 44 thereof. The drive is transmitted through a shaft 39 carrying a bevel-gear 40 to a composite gear 9, 11 attached to a sleeve by a pin 10 and bolt 12, the sleeve being keyed at 5 to a spindle 66 which carries a cutter-head 1 supporting a drill-bit. A feed screw 72 is supported on a thrust bearing 71 at the upper end of the spindle 66 by a bolt 73 and lock nuts 20 and held against rotation by co-operation between flats formed thereon and a cap 23 on the casing 7. A feed nut 68 engages the feed screw 72 and is driven by a bevel-gear 30 keyed to a shaft 27 which can be operated by a handwheel 18. To provide for power-actuation of the feed nut 68, the shaft 27 has mounted loosely thereon a worm wheel 29 adapted to be clamped on the shaft and against the gear 30 by tightening nuts 16, 17 which act through a sleeve 28. The worm wheel 29 is driven by a worm 69, Fig. 3, formed on a spindle 48 provided at the bottom thereof with a cone-shaped clutch element 51 in engagement with an element 52 which is driven by the gear 11. The elements are held in engagement by a compression spring 56 acting between two thrust bearings 53, 58, the latter being adjustable by means of a stop 64 to vary the torque transmitted by the clutch 51, 52 before slipping occurs. When the predetermined axial thrust on the drill has been reached, the worm 69 rides up the worm wheel 29 to compress the spring 56 and permit the clutch 51, 52 to slip. The Provisional Specification describes also the hand wheel 18 as in threaded-engagement with the shaft 27 and also secured thereto by a spring-loaded detent in the shaft, the drill being fed to the work by hand-operation of the wheel 18 when the increased resistance causes the detent to release the wheel which is then screwed against the sleeve 28 to engage the power feed.
Patent GB-1509415-A (GB)
Title: Friction drive device for motion-picture projectors
IPC: G03B1/40
Filed: 1975-06-13
Abstract: 1509415 Film projector drive BENCINI SpA 13 June 1975 25423/75 Heading G2E A friction drive for a motion-picture projector has a first hub MM mounted on a part of a drive spindle AL projecting outside the projector casing and driven by a resilient friction coupling with the spindle, and a second hub CM which carries the film spool BO, connected by a toothed coupling with the first hub. As shown, the spindle AL is supported in the casing wall CA of the projector by means of bearings MO. At one end of the spindle is a toothed wheel RO driven by a toothed belt CT. The friction drive F2 is applied between the casing wall CA and the spool BO. At the other end of spindle AL is a flange FL, outside the casing wall, and the first hub MM can rotate on the spindle. The opposite faces of hub MM are engaged by annular resilient members DS, which are locked in position by a ring GN clamped on to flange FL. The resilient members form the actual friction drive. The second hub CM is in toothed engagement with first hub MM, and is positively coupled to the spool BO.
Patent GB-1446958-A (GB)
Title: Holders for use in hand tools
IPC: B26B5/00
Filed: 1974-06-08
Abstract: 1446958 Hand tool handles; knives PLAS PLUGS Ltd 23 June 1975 [8 June 1974] 25538/74 Headings B4K and B4B A holder for use in a hand tool, such as a replaceable-blade knife, for holding the tool portion, e.g. blade B, comprises two portions 2, 4 adapted to provide when in a co-operating position, a handle, said two holder portions having confronting surfaces 28, 30 lying, when in use, substantially in a plane extending the length of the holder and across a width thereof, hinge means 6 to permit the two holder portions to move between an open position and a closed position and securing means 8 captive in one of the holder portions so as to allow rotational movement thereof only, said securing means projecting from the first holder portion so as to pass into a recess 22 of the second holder portion, the construction and arrangement being such that when the holder portions are placed in the closed position, rotation of the captive securing means causes a projection 20 formed thereupon to engage a surface of the second holder potion to secure the holder portions in the closed position. The holder portions 2, 4 and the hinge are preferably moulded integrally of a plastics material such as polypropylene. The securing means 8 has a head for manual rotation and a slot in the head for turning by means of a coin.
Patent GB-615968-A (GB)
Title: Improvements in or relating to combs
IPC: A45D8/12
Filed: 1946-08-27
Abstract: 615,968. Combs. UNIVERSAL PLASTICS, Ltd., and JOHNSTON, J. Aug. 27, 1946, No. 25562. [Class 131] [Also in Group V] A comb in which the teeth are offset from the back portion is moulded from plastic material in a two part mould, the teeth being formed in grooves in one part and the back in a recess in the other part, one side of the recess overlapping one end of each of the grooves to form the junction between the teeth and the back. As shown the teeth are formed in grooves 13 in the mould part 11 and the back in a recess 14 in the mould part 10 the halves of the mould coming together along the parting plane 12. The channel 15 is provided for injection of the plastic material. The combs may be flat or curved and the teeth straight or sinuous.
Patent GB-1049849-A (GB)
Title: Device for use with a switch for a track system
IPC: B65G21/20
Filed: 1965-06-17
Abstract: 1,049,849. Railway points. BORGS FABRIKS A.B. June 17, 1965 [June 18, 1964], No. 25654/65. Heading E1G. In switches for a rail system where the truck wheels rotate about substantially vertical axes, guides 10 are provided to allow linear motion of the leading truck wheels 5 and motion along a curve for all wheels during switching. The guide 10 is pivoted about a lower horizontal axis by engagement of the front wheels with a spring-loaded lever 12, to allow the truck to pass along the curve to the direction of the arrow 9. A further pivoted flap 16 may be used to swing about a vertical axis to render continuity from path 7 to path 8. Instead of pivoting the guide may be raised or lowered by wheel motion or may be moved linearly by external means. At a four-way crossing, Fig. 8, a pin 33 on the truck engages a cam 34 to rotate a disc 35 geared to discs 28 having right, left and straight tracks, the discs 28 being rotated after the leading wheels have left the straight track of the disc. On exit, the pin engages further cam discs 38, 39 to rotate the track discs 28 through chains 40 back to the original position shown.
Patent GB-797441-A (GB)
Title: Improvements in and relating to electric lamps
Inventor: HOWLES DONALD ARTHUR
IPC: H01K1/44
Filed: 1955-09-07
Abstract: 797,441. Capless electric lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 14, 1956 [Sept. 7, 1955], No. 25655/55. Class 39(2) The coupling contacts of an electric lamp comprising a glass bulb 1 sealed by means of a flattened glass pinch are provided by the leading-in wires 2 which are extended out through the seal, formed into loops 5, and have their ends returned into the seal, the loop portion of each leading-in wire being flattened down on to the pinch. As shown in Fig. 1, the leading-in wires 2 are spaced apart by a glass bead 3 and extend down at opposite sides of an exhaust tube 6 sealed within the pinch, known means such as a thin metal sleeve or a thin porous rod being located within the bore of the exhaust tube to maintain it open until it is finally sealed or "tipped". During the forming of the pinch two horizontal notches 7 are preferably formed on opposite sides thereof to provide locating means arranged to receive spring clips in a holder adapted for use with the lamp, the holder also having contact means which engage the loops 5. Alternatively, the notches may be formed midway down the pinch in which case the rounded upper ends of the loops may be bent into the notches. As an alternative to the notches the pinch may be provided with protuberances for locating and retaining the lamp in a holder or socket. Fig. 3 shows a double filament lamp with parts of the leading-in wires of the respective filaments formed into loops 5 at opposite sides of the sealed exhaust tube 6. The pinch for a double filament lamp may be cruciform, Fig. 11, with the loop portions 5 of the leading-in wires flattened down on to the wings 4 which comprise the pinch. In any of the arrangements employed the loop contacts 5 may have flattened portions to increase the area of contact surface with contacts of a lamp holder The invention is applicable to electric discharge lamps.
Patent GB-227086-A (GB)
Title: Improvements in faucets or valves
IPC: F16T1/34
Filed: 1924-10-28
Abstract: 227,086. Costello, J. A. Jan. 5, 1924, [Convention date]. Actuating - mechanism; lift valves. - A manually actuated lift valve for use on metal oil barrels is adapted to be pushed into its seat and then tightly closed by a rotational movement. The valve member 19, which has a resilient face 21, slides in a cylindrical part of the casing and is formed on member 18 provided with guide discs 22, 25 also slidable in the cylindrical part and with an actuating handle 23. A cam surface 27 is formed on the member 18 between the guide discs adapted, when the valve is near its seat, to engage a pin 29 screwed into the casing. A leakage discharge passage 35 leads into the outlet 33 which is formed at an angle with the inlet connection 11.
Patent GB-717510-A (GB)
Title: Improvements in and relating to the electric arc welding of bolts, studs and the like
IPC: B23K35/02
Filed: 1951-11-02
Abstract: A flux of pulverized zinc or phosphide of copper is incorporated in the welding end of a copper stud &c. to be stud welded to a copper, iron or steel &c. part.  Specification 697,671, [Group XXII], is referred to.
Patent GB-1155411-A (GB)
Title: Improvements in and relating to Dispensing Apparatus
Inventor: WHITTON ANDREW DAVID
IPC: G01G19/22
Filed: 1965-06-17
Abstract: 1,155,411. Weighing apparatus. UNIVERSAL ASBESTOS MFG. CO. Ltd. June 17, 1966 [June 17, 1965], No.25726/65. Heading G1W. Apparatus for automatically weighing out two materials in a predetermined weight ratio comprises two rotatable weighing receptacles (one for each material) which after being supplied with predetermined weights of the materials are rotated to discharge their contents simultaneously, the receptacles being so arranged that the materials are discharged towards each other from the receptacles and mix to form a common stream. As shown, three weighing receptcales 1, 28, 41 for automatically weighing out three materials in a predetermined weight ratio are supported on steelyards connected to weight indicators 27, 32, 51 provided with photo-electric devices, the photoelectric devices being connected in circuits which are arranged to cut-off feed of the materials when predetermined weights of the materials are in the receptacles and then to initiate simultaneous discharge of the weighed materials in the receptacles to hoppers 38 and 55 which supply a mixer 40, the receptacles 1 and 28 rotated to discharge their loads and the receptacle 41 being provided with an automatically controlled valve 52 which is opened for discharge purposes. The receptacles 1 and 28 each comprise three compartments e.g. 2a, 2b, 2c defined by two end walls 4 and by three walls 3 which radially extend from the axis of rotation of the receptacle, one of the compartments of each receptacle being fed in each weigh cycle of the apparatus, the receptacles 1, 28 each being allowed by a pawl and ratchet mechanism and on the release of a pneumatically controlled brake 21 to rotate at the end of a weigh cycle through 120 degrees and to present an adjacent compartment to a position at which it can be fed in a successive weigh cycle. The receptacle 1 is fed from a continuously rotating belt 6 which is supplied with a first material from a cyclone 5, cut-off of the feed of this material to the receptacle being effected by a pneumatically controlled, pivotally mounted scoop 7. A second material is fed to the receptacle 28 by a chain conveyer 33 and a screw conveyer 34 and feed is cut-off suitably by a pneumatically operated slide 35. The receptacle 41 is supplied with a liquid material whose feed is cut-off by a pneumatically controlled valve 45. A valve 56 at the base of the hopper 55 and a screw conveyer at the base of the hopper 38 are arranged to supply the weighed materials to the mixer 40 at a rate that will ensure a constant supply during a weighing period comprising several weigh cycles. The photo-electric devices and switches on the receptacles 1, 28 are arranged in a circuit which controls pneumatic devices, the pneumatic devices being arranged to control feed of the various materials to the receptacles and to effect discharge of the materials.
Patent GB-762186-A (GB)
Title: Improvements in and relating to a method and devices for cutting circular openings in material having a frangible coating
IPC: B23B51/05
Filed: 1953-09-17
Abstract: 762,186. Drilling. GENERAL ELECTRIC CO. Sept. 17, 1953 [Sept. 17, 1952], No. 25732/53. Class 83 (3). A device for cutting a circular opening in material 1 having a hard frangible coating 2, comprises a first rotatable cutter 14 to cut a V-shaped groove 29 through the coating and a second rotatable cutter 23 of slightly less diameter to cut through the material from the opposite side. The detachable-cutter 14 is of tungsten-carbide and is rotated by a handle 15 in a bearing 10 secured in a cap 8 screwed onto the waste-outlet 5 in the domestic sink 1. When a groove has been cut through the coating, the cutter 14 is removed and is replaced by the saw-blade cutter 23 on a holder 21 keyed to a shaft 16. The shaft 16 is rotated by power and the cutter 23 is fed by a spring 26 to cut a hole through the sink.
Patent GB-804244-A (GB)
Title: Expanded thermoplastic materials
Inventor: HOGG WILFRED HENRY
IPC: C08J9/00
Filed: 1954-09-07
Abstract: An expanded thermoplastic resinous material is prepared by forming a plastisol of a thermoplastic resin containing the components of a thickening agent for the plastisol, expanding the plastisol and reacting the components, thereby forming the thickening agent in situ and subsequently gelling the resin. Specified plastisols are polyvinyl chloride or vinyl chloride-acetate or -vinylidene chloride copolymers with plasticizers such as dioctyl phthalate.  Specified thickening agent components are polyesters, polyethers or polyester amides obtained by condensation of a polybasic carboxylic acid with a polyhydric alcohol, amino-alcohol and/or diamine, e.g. alkyd resins, while the other component is an organic polyisocyanate or polyisothiocyanate, e.g. toluene and hexamethylene diisocyanates. The plastisol may be expanded using a blowing agent or an inert gas. Specification 745,214 is referred to.
Patent GB-1440241-A (GB)
Title: Endless conveyor structure incorporating a series of carriers  with a mechanism for varying the distance between the said  carriers
IPC: E04H6/14
Filed: 1973-05-30
Abstract: 1440241 Varying spacing of load carriers of an endless conveyer P C CASTRO 30 May 1973 25882/73 Heading B8A An endless conveyer comprises a series of load carriers suspended from a series of cable sections each of which comprises a pair of cables 3a connected at one end to a tubular member 1 and connected at the other end to a slide 6 received in an adjacent tubular member 1, means being provided to move the slides 6 transversely of the conveyer to vary the spacing between carriers such that a carrier entering a curved path is not caught-up by a succeeding carrier.
Patent GB-422001-A (GB)
Title: Operating means for brakes, clutches and other devices operated by fluid pressure
IPC: B60T11/10
Filed: 1933-09-19
Abstract: 422,001. Hydraulic transmission of power. AVERY, W. L., The Blue House, Thorley, Bishop's Stortford. Sept. 19, 1933, No. 25916. [Class 69 (ii)] [See also Group XXXIV] In a hydraulic transmitter for operating brakes, clutches, &c., the reservoir 4 of make-up liquid is formed with the piston 2. The valve 7 for admitting the make-up liquid to the transmitter cylinder is opened against spring action when its stem strikes an adjustable stop 9<b>. The pedal 11 has cam surfaces for operating a bell-crank lever 16 acting through a guided roller 17 on a rod 19 secured to the piston. The return movement of the pedal is normally limited by a spring ball catch, which may yield to allow the pedal to be moved into the dotted line position, to allow unrestricted access to a filling plug 6a.
Patent GB-830086-A (GB)
Title: Improvements in or relating to electron sources and to apparatus utilizing them
IPC: B21D28/24
Filed: 1956-08-24
Abstract: 830,086. Cold-cathode tubes. WESTERN ELECTRIC CO. Inc. Aug. 24, 1956 [Sept. 1, 1955], No. 25967/56. Class 39(1). [Also in Groups XXXVI and XL(c)] An electron source comprises a semiconductor body having an electron work-function reducing coating in the vicinity of a rectifying contact which is biassed to provide high velocity electrons in the body, which are emitted into space. In Fig. 2, a semiconductor body consisting of a P region 21 and a thin N layer 22 constitutes the cathode of a discharge tube comprising a control grid 26 and an anode 27. The NP junction 36 is biassed in the reverse direction beyond the point of avalanche breakdown so that electrons produced by the ionisation of junction 36 are accelerated by the electric field towards the surface of the N layer and liberated therefrom. A layer 23 of alkali or alkaline earth metal such as caesium is added to the surface to reduce the work function. Signals from source 33 applied to grid 26 result in amplified signals appearing in the anode load 34. In Fig. 3, an additional N zone 41 is provided at the other end of the P zone, which is biassed to act as an emitter which supplies electrons to the P zone 42 for subsequent emission from the N layer 43. In this embodiment, input signals as from source 57 may be applied to the emitter, as an alternative to, or as well as input signals to control grid, so that a mixing circuit may be provided. Fig. 5 shows an alternative electron gun arrangement in which the N zone consists of channel 81 in a P type block, so providing a controlled area of electron emission (which may be annular or circular) to anode 83. In a further embodiment, Fig. 4 (not shown), the edge of the PN junction is coated with the work function reducing material and the electrons escape from this edge in a direction parallel to the junction, to the anode. Alternatively, a point contact may be used instead of a PN junction to provide effectively a point source of electrons. The semiconductor material used may consist of Ge, Si, Gr-Si alloy, Ga/As, A1 As, Ga Sb, A1, Sb or In P. The work function reducing layers may consist of a Cs Sb alloy, or of an alkali or alkaline earth metal with an oxidised layer. The discharge tube may comprise electron focusing means, and additional control grids, or no control grid at all. Specification 782,662 is referred to.
Patent GB-444068-A (GB)
Title: Improvements in engine starter drives
IPC: F02N15/06
Filed: 1934-09-12
Abstract: 444,068. Turning - gear. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Sept. 12, 1934, Nos. 26194 and 26195. Convention dates, Sept. 13, 1933 and June 13, 1934. [Class 7 (v)] In an engine-starter drive, a starter pinion 2 is driven from a power shaft 1 through a nut and screw system and a yielding driving connection such as a spring 7 until the pinion engages an engine member 3, whereupon the pinion is driven partly through the spring 7 and partly through a number of normally open friction clutches which are closed before the cranking torque is applied to the spring 7. As shown, the drive spring 7 is anchored by a bolt 9 to a driving head 11 formed on or fixed to a sleeve 15 keyed to the shaft 1. The other end of the spring 7 is anchored by a stud 8 to the end of a hollow screw shaft 4 freely journalled on the sleeve 15. A nut 5 threaded on the screw shaft is rigidly connected by a barrel 6 to the pinion 2, which is slidably journalled on the shaft 1. The nut 5 is normally retained by a light spring 19 on a smooth portion 17 of the screw shaft 4, and re-engagement of the nut with the screw thread is ensured by a compression spring 18 between the end of the barrel 6 and a stop ring 13 mounted between the end of the screw shaft 4 and an abutment 16 on the sleeve 15. On rotation of the shaft 1, the axial movement of the nut 5 on the screw shaft brings the pinion 2 into mesh with an engine member 3 ; the screw shaft then moves to the right in Fig. 1, compressing the spring 7 and closing a gap 12 between end of the screw shaft and the driving head 11, thus establishing and tightening a frictional clutch connection, preferably through a fibre ring 21. The stop ring 13 also comes into frictional engagement with the nut 5 and the convolutions of the spring come into lateral supporting relation for the transmission of the drive. In a modification, the stop ring 13 is threaded on the end of the sleeve 15 and a friction ring of bronze &c. is interposed between the spring 19 and the nut 5. In a further modification, the sleeve 15 is omitted and the screw shaft 4, driving head 11 and stop ring 13 are mounted directly on the shaft 1.
Patent GB-796593-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F13/02
Filed: 1954-09-10
Abstract: 796,593. Washing-machines. SENIOR, J. E. Sept. 12, 1955 [Sept. 10, 1954], No. 26252/54. Class 138 (2). [Also in Group XXIV] Drive is transmitted to the shaft 17 of a washing-machine agitator by means of two chains or flexible members 13 each connected at one end to a pulley 15 and resiliently anchored at the other end to a reciprocating crank arm 3 through the medium of springs 11. Each chain or flexible member 13 is connected to a stud carrying a nut 7 and passing through a projection 5 or 19 on the arm 3 which is eccentrically mounted at 31 on a pulley 1.