baber/WOPTO huggingface dataset:
Patent GB-617676-A (GB)
Title: An improved insulated electrical conductor
IPC: H01B3/08
Filed: 1946-10-15
Abstract: 617,676. Electric cables. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., MACDONALD, H. A., and EVANS, B. B. Oct. 15, 1946, No. 30676. [Class 36] The insulation of an electric conductor comprises a continuous layer of mica and a layer of flame-resisting or self-extinguishing organic material which is flexible at normal temperatures. The mica layer is obtained by attaching mica flakes to the surface of a suitable tape (paper, cotton or rayon) by means of an adhesive such as shellac varnish. Alternatively, the mica flakes may be sandwiched between two layers of the tape. The organic material may be neoprene or polyvinyl chloride, and may be applied under or over the tape layer. In a preferred method of manufacture, the mica tape is lapped on the bare conductor and held in place by a whipping of cotton. The organic layer is applied by the longitudinal method or by extrusion and the insulation completed by cotton tape and textile braiding impregnated with fire-resistant compound. Both the mica tape and the organic layer may be coloured for identification purposes. Specification 499,908 is referred to.
Patent GB-839737-A (GB)
Title: A dough-dividing and dough-working machine
IPC: A21C5/08
Filed: 1958-09-25
Abstract: 839,737. Dough-dividing machines. SCHRODER, H. Sept. 25, 1958 [Sept. 28, 1957], No. 30707/58. Class 87(2). The slide of a doughdividing machine is operated by mechanism which moves it, first very quickly and then slowly, towards the dough carrier and which comprises a pin 5 on a worm-wheel 3 which is arranged to co-operate with a cam edge 9 on a lever 8 linked to the slide. As shown, a roller 6 on the pin 5 first engages the crook of the cam edge 9 at a short distance from the pivot 7 of the lever 8, resulting in a quiet movement. of the lever and thus a quick initial downward movement of the rod 21 which links the lever to the slide The roller sides down the cam edge till the lever 8 reaches the position shown dotted, at which maximum pressure is applied by the contour 11 where the cam edge 9 merges into a cam edge 10. Known mechanism then acts on the press slide to perform the dough-working operation and reverses its movement and that of the lever 8. The reverse movement cannot continue beyond the limit imposed by the cam edge 10, the length of which ensures continuous contact of the roller 6, so preventing premature rebound and consequent locking of the mechanism. Instead of the cam edge 9 continuing as shown, a projection may extend from the face of the lever 8 towards that of the wormwheel 3 for co-operation with a suitable stop.
Patent GB-670148-A (GB)
Title: Improvements in and relating to high frequency induction heating apparatus
Inventor: WALKER PHILIP HULME
IPC: H05B6/02
Filed: 1949-11-30
Abstract: 670,148. Induction heating. ENGLISH ELECTRIC CO., Ltd. Nov. 22, 1950 [Nov. 30, 1949]. No. 30724/49. Class 39(iii). A cabinet 1 contains a high frequency generator and has a worktable 2 with knee space for the operator. Pairs of terminals 4, 5 on a panel 3 are connected to separate load matching systems, and pedestals 6 may include electrical components such as a switch 7, filament voltage control 8, and a process timer 9. The table may include a drip tray 10 with pillars 11 and a perforated frame 12 for the support of various fixtures.
Patent GB-390099-A (GB)
Title: Improvements in and relating to the recording of sound
IPC: G11B7/00
Filed: 1932-03-04
Abstract: 390,099. Optical sound-recording apparatus. HERD, J. F. and LUTKIN, F. E., Radio Research Station, Slough. March 4, 1932, No. 30791. Divided on 389,101. [Class 40 (ii).] Sound is recorded optically by using a cathode-ray oscillograph and causing the luminous area produced on a fluorescent screen to vibrate in a direction parallel with that of film travel. For this purpose, the electron beam of the cathode-ray oscillograph may be influenced by two supersonic-frequency voltages so that a luminous area in the form of a parallelogram 9, Fig. 1, is formed on the fluorescent screen. A mask 6, arranged between the fluorescent screen and the film, contains a slit 10 parallel to the horizontal diagonal of the area 9, so that as the area 9 is vibrated in the direction of film travel by the sound-induced currents the length of the luminous area viewed through the slit is caused to vary in accordance with the sound vibrations. Alternatively, a luminous area 9a, Fig. 3, is located in inclined relationship with respect to a slit 10a in a mask 6a. Movement of the area 9a in a direction parallel to that of film travel causes a variable length of luminous area to be photographed on the record film. To reduce " background noise " on reproduction of the record, it is arranged that during silent periods the slit in the mask is illuminated over a very small or zero length only. When sound is being recorded a portion of the sound-induced currents is applied through a rectifier to move the luminous area into a new mean position about which the sound vibrations are effective to vibrate the area.
Patent GB-264464-A (GB)
Title: Process for the production of sodium sulphide
IPC: C01B17/26
Filed: 1926-12-06
Abstract: 264,464. I. G. Farbenindustrie Akt.- Ges. Jan. 18, 1926, [Convention date]. Chemical furnaces; charges, agitating.-In the production of sodium sulphide the reduction of sodium sulphate by heating with carbon is effected in a furnace having a flab rotatable hearth which is rendered air-tight. This may be done by providing the hearth at its outer edge with a V-shaped collar into which dips a sheetmetal partition reaching from the roof. Sand or similar material placed on the collar seals the furnace. The mass is stirred continuously by one or more reciprocating ploughs which may be water cooled. The furnace may be mechanically charged and discharged continuously.
Patent GB-202209-A (GB)
Title: Improvements relating to hopper-feeders for carding-machines
IPC: D01G23/04
Filed: 1922-11-11
Abstract: 202,209. Firth & Sons, Ltd., T. F., and Goodall, F. Nov. 11, 1922. Feeding carding-engines &c.-In a hopper feeder in which the weighing- pan is turned over, when full, by the engagement of a pinion on the pan with a reciprocating rack, means is provided to prevent the engagement of the pinion with the rack unless the pan is full. A weighted trigger C is provided the tail c of which is normally held by an arm H on a pivoted arm K operated by a cam I. At the appropriate time the cam I allows the arm K to fall, and releases the trigger C, which falls and blocks the descent of the pinion Q on to the rack R. If, however, the pan is full and descends, an arm and wiper D pushes a spring plunger E out over the tail c of the trigger and prevents its movement. A hooked arm M on the arm K is adapted to engage the shaft Q<1> and hold the pinion and rack in engagement. The rack is reciprocated by a crank N driven by a chain from a sprocket 0 carried by an unbalanced pinion 2. A cam J on the shaft I<1> raises an arm a and releases the pinion 2, which falls into engagement with a rotating pinion 3 and is rotated thereby until a stop p engages the arm a. The movement of the trigger C is utilized to operate a switch A<1> and ring an alarm.
Patent GB-762571-A (GB)
Title: Improvements relating to rollers for conveyor belts
Inventor: MCCULLOCH THOMAS
IPC: B65G39/06
Filed: 1952-12-08
Abstract: 762,571. Idlers for conveyer belts. MAVOR & COULSON, Ltd. May 18, 1954 [Dec. 8, 1952], No. 31035/52. Class 78 (1). [Also in Group VIII] An idler roller for a conveyer belt consists of annular components held coaxially end-to-end on a rigid hub which is adapted to accommodate bearings for a supporting axle, each of said components being made of deformable resilient material and being hollow to enclose an air space within the roller. As shown, the components are secured on a hub 12 fitted at its ends with ball bearings 16 to receive a fixed axle 15, and each consists of a hollow body of rubber having inner and outer walls 4, 5, end walls 6, 7 and axially extending walls 8 forming six compartments. Each end wall has several air holes 9, there being at least one for each compartment. The components are held together by locking ring nuts 14 screwed on the ends of the liner 12. The walls 4, 5 project beyond the end walls 6, 7 to form projections 10, 11 which at adjoining ends of the components abut to form a seal joint. The walls 8 may be radial and the end walls may be oblique as shown at 61, 71, Fig. 3. In an alternative construction (not shown), each component is made with a transverse wall 6 or 7 at one end only and the open ends of the components so made that they fit against each other and seal their interiors.
Patent GB-634151-A (GB)
Title: An arrangement for selecting one of a number of similar circuits particularly in telephone systems
IPC: H04Q3/00
Filed: 1945-11-19
Abstract: 634,151. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 19, 1945, No. 31070. Convention date, Nov. 21, 1944. [Class 40 (iv)] When a start relay GR1 is operated over a wire t, a circuit is arbitrarily selected by the ignition of one of the discharge tubes GL1 ... GLn, each one of which is arranged in series with a corresponding relay R1 ... Rn and if more than one tube ignites in spite of the voltage drop in the common resistance r, a control relay GR2 breaks the current supply at contact 2. The selection is then repeated when the slow-to-release relay GR2 falls back. The control relay can be connected to battery by the operated contacts 11 ... n1 of relays R1 ... Rn through corresponding resistances rl ... rn and the current from two or more such sources is sufficient to operate it. The common resistance r may include inductance. Fig. 2 shows only the common relays of a modification. Relays GR2 and GR3 are both slow-to-release and during the interval between their successive releases following a cut-off, the striking potential is applied through a high resistance rb and is then applied through a smaller resistance ra in parallel with rb to cause a full discharge as GR3 releases.
Patent GB-763348-A (GB)
Title: Improvements in or relating to electric semi-conductor instruments
IPC: H01L31/00
Filed: 1953-11-10
Abstract: 763,348. Semiconductor devices. SIEMENSSCHUCKERTWERKE AKT.-GES. Nov. 10, 1953 [Nov. 10, 1952], No. 31171/53. Class 37. A semiconductor device, such as a rectifier, transistor, or photo-electric arrangement, comprises a semiconductor material of A III  By form and having a carrier mobility of at least 6000 cm<SP>2</SP>/volt. secs. Reference is made to Specification 719,873 regarding A III  B V  materials which are defined as any compound of one of the elements B, Al, Ga and In, with one of the elements N, P, As or Sb. Examples of these compounds having the required carrier mobility are In Sb and In As. The high mobility enables the device to have a higher operating frequency limit and/or an increased carrier diffusion length in the semiconductor. Reference has been directed by the Comptroller to Specification 719,873.
Patent GB-1400073-A (GB)
Title: Liquid developing device in electrophotographic copying apparats
Inventor: KOMORI SHIGEHIRO
IPC: G03G9/00
Filed: 1972-07-04
Abstract: 1400073 Electrostatic printing CANON K K 4 July 1972 [8 July 1971] 31258/72 Heading G2H In an electro-photographic copying apparatus employing liquid development the developing electrode is in the form of a readily removable arc-shaped member 36 which is located below the drum of the apparatus being spaced therefrom at a predetermined distance by rollers disposed at opposite ends of the electrode. The member 36 may be swung into and out of its operative position by cords and pulley wheels, Fig.6, and is fed 'with developer through a slot 170 from a tank, 34 Fig.5, by a pump 194 discharging to pipes 195 2 , 196, 208 and 197. The pipe 208 is transparent and the quality of the developer being applied is controlled by photo-electric cell apparatus associated therewith. A blade cleaner 42 is used to wipe off the toner and developing liquid remaining on the photo-sensitive drum 17 after image transfer. In order to clean the blade edge portion 42, prior to use developer is pumped via pipes 195 2 , 198 and 200 to a discharge outlet 70 to wash the blade edge and thereby remove accumulated dried-out toner material. The operation of the developer apparatus is automatic the necessary float valves and micro-switches being provided for this purpose. The developer container 34 is readily removable.
Patent GB-1058438-A (GB)
Title: Vehicle
IPC: B60K1/02
Filed: 1965-07-22
Abstract: 1,058,438. Industrial trucks. CLARK EQUIPMENT CO. July 22, 1965 [Dec. 28, 1964], No. 31260/65. Heading B7H. A vehicle is supported by a single steerable wheel 108 and two drive wheels 14 each connected to an electric or other motor 56 through a drive train assembly cantilevered from the vehicle body. Each drive train, assembly is mounted in a housing 44 and may be either a gear and sprocket arrangement or a three-stage reduction gearing (Fig. 3, not shown) with a brake drum 78 arranged on the intermediate shaft. The vehicle may have a rotary broom or means for carrying tote bins disposed between the drive assemblies. The drive assemblies may be arranged closer together with lift forks supported on bearing portions (90) (Fig. 2, not shown) of the transverse axle housings (66) and pivotable thereon by an hydraulic ram.
Patent GB-188959-A (GB)
Title: Improvements in devices for locking the starting mechanism of lifts and the like
IPC: B66B13/24
Filed: 1921-11-23
Abstract: 188,959. Wadsworth & Sons, Ltd., W., Cryer, J. W., and Mangnall, B7. Nov. 23, 1921. Lift cages and doors, locking and unlocking and operating.-The handing chain or rope of a lift is engaged by a wheel having teeth or projections which is prevented from rotating when any door is open by electrically-actuated apparatus. One face of the wheel a has projections a<2>, which in the lowered position of the pivoted arm e bear against the projection e<1> on the arm. The free end of the arm rests on the armature h of solenoids m, which are in a circuit closed by the locking bolts of the doors. The armature h is supported by pivoted arms h<1>. When the solenoids are energized, it rises carrying with it the arm e, and the wheel is released.
Patent GB-865813-A (GB)
Title: Apparatus for the manufacture of cellular material of the honeycomb type
IPC: B31D3/02
Filed: 1957-10-07
Abstract: 865,813. Laminates and laminating; coating apparatus for strip materials. SUD-AVIATION, SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Oct. 7,1957 [Oct. 24, 1956], No. 31317/57. Class 140. [Also in Groups XVI and XXII] A process for making honeycombtype cellular material from a continuous strip includes coating with glue narrow parallel zones on both faces of the strip, the zones on one face being staggered relative to those on the other face, and folding the strip zig-zag fashion, causing the zones brought opposite one another to adhere together. In the drawings, strip 7, preferably metallic, drawn from a reel 3, passes over rollers 4a- 4g and 6, then between cylinders 8, 9, the lower of which rotates in a glue trough 10 and is formed with annular grooves which apply the glue in spaced, parallel, longitudinal bands to one face of the strip, a reciprocating scraper 11 removing excess glue from the cylinder. The strip then passes, over rollers 12, through a drying chamber 13, having heaters 14 and a stream of air passing therethrough from a fan 15 to a header 16. A nozzle 15a blows air on to the strip as it leaves the chamber 13. The strip then passes over a cooled roller 22 and around rollers 17 to a gluing cylinder 19 formed with annular grooves which apply glue to the previously unglued face of the strip in spaced, parallel longitudinal bands staggered relative to the bands on the other face. The strip then passes through a second drying-chamber 20, around a cooled roller 22, over rollers 21, between driven rollers 23 one of which is formed with spikes 23a which perforate the strip, between driven rollers 24 which flatten the displaced edges of the perforations, and then between driven folding rollers 25, 26. The rollers 25, 26 each have a longitudinal rib 25a, 26a and a diametricallyopposite groove 25b, 26b, the rib of one and groove of the other co-operating to fold the strip in zig-zag fashion. The folded strip is then pressed, and if necessary heated, to glue the folded parts and the edges of the folds are removed by grinding, or the folded unit may be cut to the contours of an aileron. The unit is then drawn out to honeycomb formation. The honeycomb product is arranged between two plates and glued therebetween, the perforations formed in the strip by the spikes 23a permitting removal of the glue solvent and the creation of a partial vacuum between the plates to assist their application to the honeycomb structure.
Patent GB-832674-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23Q37/00
Filed: 1958-10-01
Abstract: 832,674. Copy-milling; machine-tool plant. BLACKBURN GROUP Ltd., [formerly BLACKBURN & GENERAL AIRCRAFT Ltd.], BANCROFT, T., and WALKER, S. Oct. 1, 1958, No. 31337/58. Class 83 (3). A machine-tool comprises four separate power-operated units A, B, C, D, each having a tracer 6 controlling a cutter for working on a vertical work-face. The units are positioned in pairs, with opposing cutters aligned axially. Each cutter is movable horizontally and vertically by power, and may be adjusted axially. The longitudinal slideways are protected by bellows 1. Each template is mounted on a holder 2 by vertical bars, which can be secured in a number of accurately-determined positions. The cutters of adjacent units B, D have overlapping paths 7, d and e, f, and anti-collision switches are provided. The templates on the units B, D (and A, C), together form the shape required for one side of the work W. The units may be mounted so as to work on individual workpieces.
Patent GB-1004411-A (GB)
Title: Aliphatic amines suitable as ashless lubricant additives
IPC: C10M133/54
Filed: 1964-08-04
Abstract: An additive for a lubricating oil comprises an aliphatic or cycloaliphatic polyamine having at least one alkyl or alkenyl group of at least 50 carbon atoms linked to a nitrogen atom. Generally, 0.1 to 10% by weight of additive is added to the oil which may be a mineral lubricating oil, a synthetic lubricating oil or a lubricating oil containing a fatty oil.  Conventional antioxidants, detergent additives, viscosity-index improvers, anti-corrosives, anti-foaming agents and agents to improve the lubricating effect may be added.  In the example, polyisobutenyltetraethylenepentamine is added to a solvent-refined paraffinic lubricating oil distillate and then tested in a diesel engine and a gasoline engine.ALSO:An aliphatic amine suitable for use as a lubricant additive is an aliphatic or cycloaliphatic polyamine having at least one alkyl or alkenyl group of at least 50 carbon atoms linked to a nitrogen atom.  It may be prepared by chlorinating a polymer of an alkene having a terminal double bond whose beta carbon atom carries a methyl group, and reacting the resulting alkenyl chloride with a polyamine.  In the example, polyisobutylene is chlorinated and the polyisobutenyl chloride obtained is heated with tetraethylenepentamine to produce polyisobutenyl tetraethylenepentamine.
Patent GB-867608-A (GB)
Title: Fastening means for waist bands and the like
IPC: A44B11/28
Filed: 1957-10-08
Abstract: 867,608. Buckles. HOCH, F., and BADER, E., [trading as GUTOS METALLSCHLIESSENFABRIC BADER & HOCH KOMM.-GES.]. Oct. 8, 1957 [Oct. 8, 1956], No. 31425/57. Class 43 A fastening means for waist bands and the like comprises a frame 1 having front and rear cross members 2, 3 connected by two longitudinal members, a bridge member 6 between the longitudinal members and connected to the forward third of the frame, the bridge member having at one side a tongue 7 formed with an inwardly directed fastening hook 9 adapted to be engaged by an eyelet 12 attached to the band, a pivotable clamping member being disposed behind said front cross member 2. The clamping member is angle shaped with teeth on one edge and a grip tab 14 on the other edge and it is provided with pivot pins which engage in the longitudinal members of the frame.
Patent GB-650925-A (GB)
Title: Improvements relating to door checks
Inventor: THOMPSON HERBERT GEORGE
IPC: E05F5/10
Filed: 1948-12-06
Abstract: 650,925. Door checks, door stops. THOMPSON, H. G., and SARJENT, F. K. Dec. 6, 1948, No. 31518. [Class 65(i)] In a door check of the dashpot type having a cylinder 1 adapted to be secured to the door frame and containing a piston 10 urged outwardly by a spring 13, the axis of the cylinder and that part of the piston rod 4 which enters the cylinder is curved to a circular are, so that the check may be fitted with said arc concentric with the door hinges. The piston rod and its guide opening 7 are both of square cross section, the latter being formed with grooves 16. The end of the piston rod carries a resilient buffer 5. The checking action is adjusted by tightening or slackening either the screwed cylinder head 8 or a screw 18 fitted therein. In a modification one or more grooves are formed in the cylinder wall near its inner end, and holes are formed through the outer end wall of the cylinder. The parts of the check may be formed by moulding from a plastic. The, check may also be secured to the door, or alternatively to the floor so as to serve as a door stop. Specification 611,135 is referred to.
Patent GB-1381532-A (GB)
Title: Insect activity observation centre
IPC: A01K67/033
Filed: 1972-07-05
Abstract: 1381532 Insect observation centre H N BRAUNHUT 5 July 1972 31530/72 Heading AIM Apparatus for the observation of insect activity comprises two insect receiving units 12 with passageways 44 leading to an observation chamber 14; this comprises an outer cylinder with a slotted inner cylinder rotatable within it, the slots being registered with either or both of the passageways 44 when it is desired to admit insects. The cover of the observation chamber has a magnifying element, and pointers 66 to indicate which passageways are open. The receiving units 12 have covers 20 with magnifying elements 24 and pipes 36 leading to the passageways 44; the pipes 36 are topped by ventilated caps 38. Further magnifying elements 22 are provided in the walls of the receiving units 12. The receiving units 12 are interchangeable and may contain nests with sculpturing and background to simulate a human habitat in minature. A sponge is suspended in each to control the humidity. The apparatus is made of transparent plastics material such as polystyrene, and may be red coloured.
Patent GB-684930-A (GB)
Title: Improvements in or relating to cutting machines for mines
IPC: E21C25/52
Filed: 1950-12-29
Abstract: 684,930. Mining-machines. EICKHOFF, MASCHINENFABRIK UND EISENGIESSEREI, GEB. Dec. 29, 1950 [Jan. 2, 1950], No. 31533/50. Class 68(i) The cutting means of a mining-machine which moves along on a face conveyer 2 comprises an over cutter jib 7, a cranked S-shaped undercutter jib 6 and a bar cutter 8 disposed between said jibs and carrying a number of cutter discs 9 which extend almost to the jibs 6, 7.