baber/WOPTO huggingface dataset:
Patent GB-1391479-A (GB)
Title: Tape recording apparatus
IPC: G11B27/13
Filed: 1973-02-13
Abstract: 1391479 Dictation apparatus; indicators LANIER ELECTRONIC LABORATORY Inc 13 Feb 1973 [17 March 1972] 6996/73 Heading G5R An indicator in, e.g. dictation apparatus provides an indication of amount of tape used which is unaffected by re-winding and subsequent resetting of the tape, the indicator being driven via a one-way drive from the tape transport. As shown, the indicator is driven from supply reel 17 via connections 23-27 and gear train 40-43 to a shaft 55. The one-way drive comprises a driven wheel 56 having a member 59 engageable with a member 60 of a confronting wheel 57, to drive the wheel 57 against the bias of a spring 64. An output shaft 58 drives an illuminated dial 71, or a potentiometer slide connected to a meter, Figs. 1, 3 (not shown). If reel 17 is rewound and wheel 56 thus reverses, wheel 57 is held in position by a brake 65-68 to maintain the indication, which may, as shown, be of recording time used. The indicator may be re-set by a member 51, which disengages gears 43 and 54 and disengages the brake 65-68, to permit the spring 64 to drive the indicator to zero. A warning of imminent end-of-tape may be signalled audibly or visually at 78 by a cam 80 or 81 actuating a switch 79.
Patent GB-397216-A (GB)
Title: Improvements in thermionic valve circuits for short-wave generation
IPC: H01J25/72
Filed: 1932-03-09
Abstract: 397,216. Thermionic valves. POLLAK, J. E., 20, Holborn, London.-(Pintsch Akt.- Ges., J. ; 71, Andreasstrasse, Berlin.) March 9, 1932, No. 7059. [Classes 39 (i) and 40 (v).] A short-wave generating circuit, operating on the Barkhausen-Kurz principle comprises a thermionic valve in which are contained a cathode, a braking electrode and two or more coaxial grid helices which latter are supplied with the same positive potential which is higher than that applied to the other electrodes. The helices 17, 18 may be short-circuited by yoke 15 inside or outside the tube. The support 16 may act as a current lead, or leads 20, 21 may be taken out through the tube. The coils 17, 18 may be of different diameter and may have different pitches. They may be provided with separate connections and may be coupled to di-poles or to a Lecher wire system. The third, or " braking " electrode 22 may be replaced by a magnetic field.
Patent GB-1150821-A (GB)
Title: A Method of, and Wrench for, Tightening Screws
IPC: B25B23/142
Filed: 1967-02-14
Abstract: 1,150,821. Screw-tightening. BAUER & SCHAURTE. 14 Feb., 1967 [17 Feb., 1966], No. 7084/67. Heading B3N. Screws are tightened whilst providing torsional oscillations by a device comprising an oscillating means 2, which has a shaft 6 connected to a nut engaging spindle 8, and extending through a tube 4. Spindle 8 is connected to a handle 11, and also to a pointer 9 which co-operates with a scale 5 carried by tube 4, for indicating the applied torque. The oscillating means may consist of an air vibrator, an impact wrench, or a magnetic oscillator.
Patent GB-678405-A (GB)
Title: Improvements in or relating to folding and collapsible seats
IPC: A45B5/00
Filed: 1950-03-21
Abstract: 678,405. Seats; stands. WALKER, H. BELL-. March 20, 1951. [March 21., 1950] No. 7089/50. Classes 52 (ii) and 52 (iii). A walking and shooting stick having the usual folding seat portion has the stick pivotally connected to the seat portion and a pair of legs also pivoted to the seat portion whereby when the seat is locked in normal position a seat is provided at the usual height but when the stick and the legs are separated to form a tripod support a seat is provided at a lower height. Fig. 1 shows a stick 19 pivoted to the block 13 which supports the usual folding seat 10, 11, 14, 15 the block 13 also having pivoted thereto a pair of legs 23 of shorter length than the stick 19 and of channel formation so as to lock the stick 19 when it is in its normal position. Fig. 3 shows the stick 19 and the pair of legs separated to give a tripod support., Feet 22, 25 are provided as shown and clips 26 on the legs 23 are provided engagable with notches to lock the stick in normal position. In a modification the legs are of part circular section and are tapered to give the walking stick a tapered appearance, straps being provided to lock the stick in normal position.
Patent GB-609151-A (GB)
Title: Improvements in or relating to speed indicators
IPC: G01P11/02
Filed: 1946-03-07
Abstract: 609,151. Speed indicators. PETROFF, A., and IMPROVED SUBMERGED LOG CO., Ltd. March 7, 1946, No. 7093. [Class 106 (iii)] In a self-contained speedindicating instrument, angular displacement is imparted during recurring intervals of time to a plurality of angularly movable members in proportion to the prevailing speeds of revolution of a plurality of individual shafts, and summation of the angular displacements is imparted to a single indicating device, whereby the resulting angular displacement of the device indicates the average speed of revolution of the shafts. Electrical impulses generated at each revolution of a ship's propeller shaft energize a solenoid 25 which, by reciprocating a pawl (Fig. 1, not shown), steps on a ratchetwheel 30 freely mounted on a shaft 42, against the action of a spiral spring 39, for a period, e.g. of 60 seconds. If this displacement is great enough (i.e. if the speed of the propeller shaft is increasing), a pin 37 on the ratchetwheel 30 drives, against the action of a second spring 40, a second ratchet-wheel 29, fixed to the shaft 42 which also carries a pointer 33. At the end of the 60-second period, clockwork timing mechanism a causes release and then re-engagement of the check pawl on ratchet 29 to ensure that the pointer 33 assumes the angular position reached by the ratchet 30, and then the check pawl on the latter is released, allowing it to return to its initial position as determined by the engagement of a pin 38 on the wheel with a fixed stop 43. Similar mechanism is provided for indicating the speeds of revolution of a plurality of shafts and the results are combined by differential gears or by cord and pulleys to provide an indication of the average speed of the shafts.
Patent GB-705180-A (GB)
Title: Improvements in or relating to shaft joints
IPC: F16D3/30
Filed: 1951-03-27
Abstract: 705,180. Universal joints. VOSS, C., and VOSS, E. March 27, 1951 [March 27, 1950], No. 7108/51. Class 80 (2)  Shafts 1, 2 are universally connected by two cross members which are pivoted in the shaft forks 3, 4 by their pins 5, 7 and which are pivoted by their cross pins 6, 8 to links 9, 10 and 11, 12 of equal lengths, each pair of links 10, 11 and 9, 12 being pivotally connected by pins 14, 13 parallel to the pins 6, 8. One pair of links may be dispensed with, counterweights being then provided for balancing purposes. The axes of the pins 5, 6 and 7, 8 may intersect, or, as shown, be spaced apart.
Patent GB-310145-A (GB)
Title: Salvage apparatus
IPC: B63B22/08
Filed: 1928-03-09
Abstract: 310,145. Panzacchi, E. G., Chiozza, D. E., and Roncallo, G. March 9, 1928. Sunken objects, indicating position of; sunken ships, raising.-Salvage apparatus for raising sunken vessels consists of a buoy 7 comprising two spherical parts 26, 27, and carrying a reel 8, a rope 9 being doubly-wound round the reel and looped round a reel 3 fitted in a well &c. 1 in the vessel to be salved, the well being normally closed by the buoy. A further reel 4 is arranged in the well and carries airsupply hose 5, the end of the latter being connected to the rope 9. When the ship sinks, or the submarine goes below its normal depth, hydrostatic pressure in a pipe 12 opens a spring- pressed valve 14 and water floods the well 1 and flows through a pipe 15 to depress a spring-pressed piston 16 and thereby move a wedge 6 to free the buoy which rises to the surface; in a submarine, the piston 16 also actuates a valve 25 to admit compressed air from storage cylinders to the buoyancy chambers to raise, or assist in raising, the vessel. When the buoy is picked up by a rescue vessel, the rope 9 is operated as in Fig. 5, to raise the hose 5 for delivery of air from the surface to the sunken vessel; afterwards, the rope 9 is operated to pass a lifting rope 30, Fig. 8, round the reel 3 in the sunken vessel. Prismatic reflectors 28 are provided on the buoy.
Patent GB-557817-A (GB)
Title: Improvements in and relating to electric arc welding
IPC: B23K9/10
Filed: 1942-06-01
Abstract: 557,817. Control systems for welding arcs; regulating switches; control of D.C. motors. WILSON WELDER & METALS CO. June 1, 1942, No. 7385. [Class 38 (iv)] I[Also in Group XXXVII] To avoid crater formation the current in a welding arc is faded out by varying a resistance in series with the arc circuit and oppositely varying a resistance in parallel at the same time. Several welders may thus be operated from a common source. Fig. 7 shows a potentiometer 13 the movable tapping of which is coupled and connected to the movable tapping of a resistance 15 in series with the arc. A motor actuated, distant controlled regulator for this purpose comprises a rectilinear brush carriage 21 actuated by an endless chain passing over a sprocket driven by a reversible motor 46. The carriage 21 and a stop on the chain co-operate respectively with limit switches 53, 56 to prevent overrun of the carriage and with a further limit switch 59 cooperating with a second carriage 51 which defines the open circuit voltage of the arc circuit. The operator holds a housing 86 at the end of a cable 87 and by varying pressure upon a handle 88 he may selectively energize the motor 46 through limit switch 53 to restore the open circuit voltage fade out the arc at a desired speed or through limit switch 53 to restore the open circuit voltage to its predetermined value. This value is set by the position of the limit switch 59, carriage 51 being normally locked by a brake 69 ; by actuating a member 97 in either of two directions the operator may energize relay 81 or 82 to move this carriage to a position giving a lower or higher no-load voltage, a solenoid 67 being simultaneously operated to free the brake and couple the two carriages. A switch 68 is closed only when the solenoid operates.
Patent GB-702844-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: H01J29/20
Filed: 1951-03-30
Abstract: 702,844. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. March 26, 1952 [March 30, 1951], No. 7445/51. Class 39(1) A luminescent material for cathode ray tube or X-ray screens comprises #-calcium pyrophosphate activated by lead and manganese. The proportion of lead is in the range of 0.1 per cent to 30 per cent, preferably 1 per cent to 10 per cent, and the proportion of manganese is in the range of 0.01 per cent to 10 per cent, preferably 0.1 per cent to 2 per cent, by weight of the material. The material is prepared by heating, at a temperature within the range of 700‹C to 1200‹C, calcium pyrophosphate or a substance or substances adapted to produce calcium pyrophosphate during the heating, together with compounds of lead and manganese, preferably lead nitrate and manganese carbonate. The substance adapted to produce calcium pyrophosphate during the heating may be calcium hydrogen phosphate produced by precipitation from aqueous solutions of a calcium compound, e.g, calcium chloride, and a phosphate, e.g. diammonium hydrogen phosphate, the solutions being heated to about 80‹C before mixing. In order to increase the brightness of luminescence up to 10 per cent, preferably not more than 5 per cent, of diammonium hydrogen phosphate, by weight of the material after heating, may be added to the starting materials. In an example given the mixture of starting materials is ground thoroughly and then heated in a silica tube closed with a glass wool plug for one hour at a temperature of 800‹C. The product is then reground, heated for an hour at 850‹C, again reground and heated at 900‹C for one hour, and then ground to a fine powder. In the example given the material produced contained 5 per cent of lead and 1 per cent of manganese, by weight. Specification 582,122 is referred to.
Patent GB-938281-A (GB)
Title: Improvements relating to the treatment of materials by sintering
Inventor: FRANKAU ANTHONY MACDOUGAL
IPC: C22B1/20
Filed: 1961-03-01
Abstract: 938,281. Controlling sintering machines. HUNTINGTON HEBERLEIN & CO. Ltd. March 21, 1962 [March 1, 1961], No. 7486/61. Class 82. A method of controlling the completion of sintering on a sintering machine (of the straight line or rotating table type) comprises automatically varying the quantity of sintering air (up- or down-draught) passing through the sinter bed in accordance with the position of the peak waste gas temperature in relation to the total length of the sinter bed. In the Figures thermocouples or other temperature sensing devices (e.g. suction pyrometers) 20 are placed in the last three windboxes 14 and the peak waste gas temperature under the grate 13 is determined by a detector 21 which is suitably of the balancing bridge network type. The signal from 21 is passed to a regulating device 22 which controls the fans or blowers 18 or 18<SP>1</SP> by altering the speed of the fan, the pitch of the blades or the degree of damping, the first being the preferable alternative.
Patent GB-145826-A (GB)
Title: Improvements in or relating to ignition devices for internal combustion engines
IPC: H01T13/24
Filed: 1919-03-26
Abstract: 145,826. Pickard, W. March 26, 1919. Sparking-plugs. - The terminals g, dare drawn together on the suction stroke against the action of a spring n. The central electrode is mounted in a slidable piston e of insulating- material provided either with piston-rings or with a split-ring i which is expanded by a conical ring or disk i pressed by a spring k. A partial rotary movement may be given to the electrode by the engagement with a slot in the insulator of the pin l<1> projecting from the gland l.
Patent GB-350389-A (GB)
Title: Improvements in and relating to brake testing apparatus for vehicles
IPC: G01L5/28
Filed: 1930-03-07
Abstract: 350,389. Cramps and clamps. LOGETTE, A. I. and DAINTON, E. H., 186, Walmer Road, Notting Hill, London. March 7, 1930, No. 7568. [Class 61 (ii).] Comprises a construction of cramp for application to the brake pedal to operate the brakes of a vehicle during testing, such device being adapted to take up the resistance and lost motion of the brake gear before the brakes are applied and to indicate the pressure under which the brakes are operated. A tubular ram 1 is provided with a screwed extension 2 with wings 15 and a ball-seated pedal engaging foot 16. The piston 3 works in a barrel 5 provided with two diametrically opposite pins 13 which work in longitudinal slots in the ram 1. A cap 6 closes the end of the barrel 5 and a spring 10 is placed between the cap and the piston. Fluid passages 7 in the cap communicate with a pressure gauge 8 mounted in a housing 9 secured to the cap. A coned ring 12 is pressed against the skirt of the cup leather by a spring 11. The closed end of the casing 5 is partly filled with oil which also fills the passages 7. The barrel or casing 5 has secured near the end by screws 32 an eye 31 attached to a rod 30 which works in a split sleeve forming part of a clamp 21 which may be secured to the steering column, the two adjustments on the steering column, and the rod 30 in its split sleeve respectively, allowing the device to be aligned with the pedal 22. In use, the apparatus is adjusted in the position shown in Fig. 3, and the screw 2 manipulated by the wings 15 until the slack in the brake gear is taken up. Further manipulation compresses the liquid in the cap and the device may be adjusted to any pressure which is indicated on the gauge. In a modification suitable for cases in which there is some distance between the steering column and the brake pedal the clamp 21 is secured adjustably to a rod which itself is secured to the steering column.
Patent GB-906728-A (GB)
Title: Improvements in or relating to valves for controlling the feed of dough-like mixtures and to methods of controlling the flow
IPC: B29C48/92
Filed: 1960-03-03
Abstract: 906,728. Controlling the feed of dough-like mixtures to moulding apparatus. ALGEMENE KUNGSTZIJDE UNIE N.V. March 3, 1960 [March 7, 1959], No. 7602/60. Class 87(2). The flow of a dough-like mixture of fibrereinforced regenerated cellulose sponge 2 from a pressure vessel 1 through a conduit 7 into a retractable mould 9 is controlled by a valve 8 comprising a gate member 12 reciprocable to allow or prevent flow through the conduit, and a piston 14 which is adapted to be retracted in a guide 15 to provide a chamber in which dough-like mixture is displaced as the gate member 12 is closed. In the embodiment of Fig. 4 two semi-cylindrical gate members 21 are rotatably pivoted in recesses 22 on axes 23, each mounted in the plane of a wall of the conduit 7. The gate members 21 may be mounted eccentrically. In the embodiment of Fig. 3 (not shown) two quadrant-recesses are provided in one wall of the conduit and the gate member comprises a quadrant of a cylinder with a planer extension.
Patent GB-1292163-A (GB)
Title: Disazo-type multicolor reproduction
IPC: G03C1/58
Filed: 1970-02-17
Abstract: 1292163 Photographic processes and apparatus therefor MITA INDUSTRIAL CO Ltd 17 Feb 1970 [19 Feb 1969 22 Aug 1969 18 Nov 1969] 7657/70 Headings G2A and G2C Multi-coloured azo dye images are produced by exposing to light and heat simultaneously or successively in either order an assembly comprising an original and a diazotype material and also containing a volatile or sublimable coupler (a) disposed between the original and the material in areas corresponding to only part of the total image areas of the original whereby the diazonium compound is decomposed and coupler (a) is transferred to the exposed diazotype material and developing the exposed material in the presence of a coupler (b), which is slower than coupler (a), to produce an image of one colour in the areas where coupler (a) is transferred and an image of another colour in the areas corresponding with the remaining image of areas of the original. Coupler (a) may be applied to part of the back of an original or to a sheet which is placed between original and the material to cover part of the image areas. Up to three different couplers (a) may be applied to the back of the original; the methods of application being set out in Specification 1292164. Coupler (b) may be in the diazotype material or in the developer. The diazotype material may contain a dye, cellulose triacetate and dextrin. In the examples a mercury lamp is used as the heat and light source. As shown, original A and diazotype material B are fed on to endless belt 11 and exposed to light source (a mercury lamp) 5 and heat source (an infrared lamp) 6 in transparent cylinder 1 with reflective plates 2 and a cold air duct 3 which cools the light source. Alternatively, the cylinder may only contain a light source and the assembly may be subsequently exposed to a heat source. After exposure to both sources, the original A is separated from the diazotype material B either manually or by using separate suction chambers for both the original and the diazotype material (not shown), the original dropping into tray 13 while the diazotype material passes on to developer station 19 in which ammonia and steam are vapourized by heater 21 and pass through openings in wall 22 to develop the material. The endless belt 11 is cooled by cold air being blown through cooling duct 14. Gaseous development may be replaced by liquid development, the material A either passing through liquid developer or over a roller wetted by the developer. A temperature control mechanism may be used by having a detector detect the temperature of the cylinder and control the cold air-flow from the duct 2. Similarly duct 14 can be controlled to control the temperature of belt 11.
Patent GB-968838-A (GB)
Title: Improvements in ship or barge unloaders
Inventor: BELLINGER RONALD
IPC: B66C17/00
Filed: 1960-03-04
Abstract: 968,838. Overhead-travelling cranes. STRACHAN & HENSHAW Ltd Feb. 28, 1961 [March 4, 1960], No. 7811/60. Heading B8B. The crab 34 of a wharf crane has an extension trolley 36 coupled to it so that the main weight of the crab may remain near the heel 24 of the jib even when the grab 42 is working at full reach. In the form illustrated, the trolley 36 is coupled to the crab 34 by a link 38 and carries only pulleys 40 for the hoist rope which is operated from winding gear on the crab. The crab and trolley, together with a control cabin 46, can be retracted on to a fixed trackway 20 so that the jib 22 can be hinged upwardly, by tackle 26, to the position shown in broken lines. The crab 34 may pick up electric current from conductors carried by the fixed trackway 20, and may be propelled by a pinion engaging a rack on the fixed trackway. The crane shown is mounted to travel along rails 18, and carries a hopper 52 receiving material from the grab 42. Interlocks may prevent the jib being hinged up unless the crab, the trolley and the control cabin have been withdrawn on to the fixed trackway 20.
Patent GB-847704-A (GB)
Title: Improvements in or relating to racks, stands and the like
Inventor: WISBEY SAMUEL
IPC: A47F1/14
Filed: 1958-03-11
Abstract: 847,704. Racks. ACME SHOWCARD. March 4, 1959 [March 11, 1958], No. 7831/58. Class 52(3) In a rack comprising trays 10 supported one above another the lowermost tray is supported on legs 12 and each of the other trays is supported by hairpin shaped rod members 19 of which the free ends enter sockets 17 in the tray beneath and the light ends enter downwardly opening, sockets 18 of the tray being supported.
Patent GB-1523953-A (GB)
Title: Cable link apparatus
IPC: B63G8/42
Filed: 1976-02-28
Abstract: 1523953 Controlling submersible craft BRITISH AIRCRAFT CORP Ltd 16 Feb 1977 [28 Feb 1976] 07935/76 Heading B7A The power supply and control cable 6 which extends between a parent craft 3 and a submersible craft 4 is separated into portions 6a, 6b by a ballast weight 7, the upper cable portion 6a being of negative buoyancy and the lower cable portion 6b being of positive buoyancy whereby the cable hangs clear of the submersible craft. Pressure responsive transducers 9, 10 on the ballast weight and submersible craft generate signals proportional to depth, the difference in the signals being compared with a signal representative of the desired depth difference in a control system, Fig. 2 (not shown). The resulting signal is used to control a winch 5 for raising and lowering the cable automatically and an indicator (19) enabling manual winching to be effected.
Patent GB-572958-A (GB)
Title: Improvements in or relating to fluids for use in hydraulic mechanisms
IPC: C08L27/00
Filed: 1942-06-11
Abstract: A fluid medium for use in hydraulic mechanism comprises a polymer of an olefine containing from 3 to 5 carbon atoms or a mixture thereof, dissolved in a hydrocarbon solvent having a solidifying point below -80 DEG  C.  The molecular weight of the polymer exceeds 800 and is preferably 10,000 to 15,000.  Suitable polymers are those of iso-butylene, e.g. made from the "C4 fraction" of cracked petroleum oils.  The solvent may be highly refined petroleum fractions boiling between 120-400 DEG  C. or alkylate distillate obtained by distillation of the condensation products of olefines and saturated hydrocarbons in the presence of catalysts such as sulphuric, phosphoric or hydrofluoric acids, preferably boiling over the range 150-350 DEG  C.  Preferably, the aniline point exceeds 80 DEG  C. Mineral, animal, or vegetable oils or other polymers may be added. In an example, 5 parts of poly-isobutylene was dissolved in a mixture of 15 pts. of a thin lubricating oil, 79.9 parts of an alkylate distillate boiling over the range 190-310 DEG  C. and 0.1 pts. of stearic acid.  The p  viscosity/temperature characteristics are stated.