baber/WOPTO huggingface dataset:
Patent GB-575384-A (GB)
Title: Improvements in apparatus relating to the production of pulses having rectangular voltage and current time forms
IPC: H01G2/00
Filed: 1942-02-03
Abstract: 575,384. Artificial lines. BRITISH THOMSON - HOUSTON CO., Ltd., and WILKINSON, K. J. R. Feb. 3, 1942, No. 1452. [Class 40 (iii)] A double artificial line for use in a circuit such as that shown in Fig. 2 in which cables of surge impedance Z are discharged through a resistance R=2Z to give an impulse of duration 2t (t being the electrical length of each cable), comprises a number of plates 11 connected together through inductances 12 to represent one inner conductor, a similar arrangement of plates 1 to represent the other inner conductor and intermediate plates 6 to represent both sheaths. The plates 1, 11 are separated from the plates 6 by alternate sheets of dielectric and conducting foil shaped as shown to distribute the electric stress.
Patent GB-632621-A (GB)
Title: Improvements in reachers or long arm devices
IPC: B25J1/04
Filed: 1948-01-19
Abstract: 632,621. Reachers. JENKS, L., and VINER, H. S. G. Jan. 19, 1948, No. 1640. [Class 61 (ii)] A long arm device particularly for reaching goods on shelves comprises a pair of relatively movable jaws mounted on a rotatable head at one end of a long arm and means for closing the jaws operated by handles at the other end of the arm. The head 2 to which the jaws 7 are pivoted at 8 and which are urged apart by flat springs 9, is integral with a sleeve 6 rotatable on the long arm 1, the jaws being closed by a pull on a rod attached to the chain 13 which extends through the bent part of the arm and terminates in a ball or stud 15 rotatable in a cup 16 on an element 17 connected to the jaws by links 18. The operating means comprise a fixed handle and a pivoted handle to which one end of a toggle lever is pivoted, the other end sliding in the fixed handle. The rod is connected to an intermediate point on the toggle lever. In a modification, the arm 1 is straight and the chain 13 is omitted, the rod being directly connected to the stud 15. In a further modification, one jaw is fixed and the other pivoted to the head. Resilient gripping faces may be provided on the jaws.
Patent GB-921667-A (GB)
Title: Process for reclaiming waste nylon
IPC: C08G69/00
Filed: 1961-01-16
Abstract: In a process for reclaiming a waste polyamide in which the amide groups are separated by chains of at least two carbon atoms and which is obtainable by heating a mixture of dicarboxylic acids and diamines, the waste polymer is reacted with a hot molten dicarboxylic acid containing from 4 to 11 carbon atoms in a ratio of polymer to acid of 0,15:1 to 1:1 parts by weight, the product hydrolysed with water at 200 DEG  to 300 DEG C. and filtered to remove titanium dioxide, the resultant filtrate being neutralized with a diamine containing from 2 to 12 carbon atoms, filtered and the filtrate polymerized either alone or blended with other diamine dicarboxylic acid salts.  Specified dicarboxylic acids are adipic, suberic, azelaic and sebacic acid.  Specified diamines are hexamethylene, tetramethylene, heptamethylene and nonamethylene diamine.  The examples describe the reclamation of polyhexamethylene adipamide, the diaminedicarboxylic acid salt added prior to the polymerization step being hexamethylene diammonium adipate.
Patent GB-396627-A (GB)
Title: Improvements in time and time-distance recording apparatus for vehicles
IPC: G07C5/12
Filed: 1933-01-19
Abstract: 396,627. Recording-apparatus. HASLER AKT.-GES. VORM. TELEGRAPHEN-WERKSTATTE VON G. HASLER, 5, Schwarztorstrasse, Berne, Switzerland. Jan. 19, 1933, No. 1782. Convention date, Feb. 23, 1932. [Class 106 (iv).] In a time-distance recorder for vehicles in which a pencil is reciprocated at regular intervals across a paper strip which is driven in accordance with the movement of the vehicle or by clockwork when the vehicle is stationary, the pencil is reciprocated several times within the unit of one hour and the strip is marked with the hour by a type wheel. Figs. 1 and 2 show a sectional elevation and plan respectively and Figs. 4 and 5, the two side elevations. The strip 27 is led from a vertical drum 30 over guide rollers 32, 33, 34, and a driving roller 35 to a re-winding drum 36. The driving roller 35 is rotated slowly from the hour spindle 7 through a train of gearing which includes bevel gear 48, 47, a one-way clutch 44 and gear wheels 42, 41, 39, 40. If the spindle 7 is rotated backwards when resetting the apparatus, the driving roller 35 is still driven forwards through the bevel gear 49 and a one-way clutch member 51 secured to the vertical spindle to which the gear 42 is fixed. When the vehicle is travelling, the driving roller 35 is rotated at a higher speed by mechanism (not shown) engaging the gear wheel 40. Two spring drums 3, 4 may be wound up simultaneously. The drum 4 drives the gear wheel 6 at one revolution per hour, the speed being regulated by an escapement (not shown) operated by the gear wheel 8. A spring friction drive 9, 10 connects the gear wheel 8 to the hour spindle 7 which carries a gear wheel 11 driving wheels 13, 12 at three times its speed. The wheel 13 carries a button 15 by which the apparatus may be reset, while the wheel 12 moves a pencil 26 up and down three times in one hour by means of a crank 19 and a link 23 the upper end of which.is guided in a fixed groove 22 and also engages a transverse slot at the upper end of a vertical sliding rod 24 carrying the pencil 26. The wheel 12 also carries a worm 16 which drives a horizontal worm wheel 52 secured to a type wheel 53 by means of which the time is stamped on the strip 27 every hour. A backing roller 59 supports the strip against the pressure of the type wheel. The pivot of the wheels 52, 53 is mounted on an arm 57 which is guided horizontally at one end 55 and is moved to the left every hour and sharply returned by linkwork which includes levers 58, 62, and a connection 77 to a cam 6 on the hour spindle 7. A curve of the character shown at 18 in Fig. 3 is thus traced on the strip 27, the close regular zig-zag line indicating the non-running period, when the strip is fed slowly by the clock.
Patent GB-848147-A (GB)
Title: Axial-flow fans
IPC: F04D25/06
Filed: 1958-06-13
Abstract: 848,147. Electric motors. RIJN, VAN J. C. June 13, 1958, No. 19031/58. Class 35. [Also in Group XXVI] In the motor-driven axial-flow fan shown, the rotor shaft 15 is journalled in a member 14, either directly, as shown, or through ball or roller bearings, axial displacement of the shaft being prevented by means of a screw 17 and washer 18 or by means of a snap-ring. The member 14 is supported from the casing 12 by means of guide-blades 13 and carries the motor stator 19, the supply leads 21 passing through passages within two of the guide-blades. The rotor bars of the motor are carried by a cylindrical extension 23 of the impeller hub 10.
Patent GB-1499808-A (GB)
Title: Electrical machines
IPC: H01R39/24
Filed: 1975-03-05
Abstract: 1499808 Brushgear in electrical machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 5 March 1975 [16 Jan 1974] 2022/74 Addition to 1396309 Heading H2A A machine has a plurality of resilient fibre current transfer brushes 12 each having a projecting peg, e.g. an end of a pin 14, engaged in one of a plurality of grooves or slots 11 in an annular actuating plate 10, the grooves or slots 11 being so disposed that upon rotation of the actuating plate 10 each brush is positively driven in a radial direction to adjust the contact pressure between the brushes and a current transfer surface, means being provided to guide each of the brushes in the radial direction. In the arrangement shown, the brushes 12 have pins 14 with opposite ends engaged in corresponding grooves or slots 11 in two similar plates 10; the radial guiding means are provided by wedge shaped members 16 mounted between two fixed retaining plates 15; and the brushes 12 move radially outwards to contact a rotating transfer surface (not illustrated). A similar arrangement in which brushes move radially inwards is described with reference to Fig. 3 (not shown).
Patent GB-437344-A (GB)
Title: Improvements in or relating to switches
IPC: H01H33/58
Filed: 1934-01-20
Abstract: 437,344. High-tension switches. AKT.- GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Jan. 20, 1934, No. 2098. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 23, 1934]. [Class 38 (v)] The cell or protective casing of a gas-blast switch is used as the exhaust vessel. The exhaust gases may be cooled or de-ionized as they emerge from the switch, by directing them against insulated plates or cooling bodies. The walls of the cell may be partly or completely lined with insulating material, and may be made of, or lined with, sound-absorbing material. The cells may be provided with pressure-relieving devices, and the gases flowing out of the cell may be conveyed to a collecting vessel or compressor. The entire switching installation, with or without spaces for transformers and other apparatus, may be erected in a sound-proof building or part of a building. The walls may be made entirely or partly of transparent material, the transparent parts being provided with earthed protective grids. The walls or parts of the walls may be domed.
Patent GB-485887-A (GB)
Title: Improvements in and relating to spring supports for chairs, sofas and the like
IPC: A47C7/32
Filed: 1937-01-25
Abstract: 485,887. Spring mountings for seats. CHOULES, S. R. Jan. 25, 1937, No. 2145. [Class 52 (ii)] In a spring mounting for seats a floating rod a extends across the seat near the angle between the back frame and the seat frame, and is suspended by coil springs d from the upper part of the back frame, and connected to the front of the seat frame by springs d<2> forming the support for the seat, and to the rear portion of the back frame by further springs d<1>. The springs may be provided with end loops e, Fig. 5, through which the rod a is threaded, tubular spacers h being used between the loops. In a modification, the springs d and d<2> are replaced by members consisting of strips of metal joined to shorter springs located at the lower and rear ends respectively.
Patent GB-214714-A (GB)
Title: Improvements in or relating to the manufacture of cutlery
IPC: B21K11/00
Filed: 1923-01-24
Abstract: 214,714. Innocent, J. A. Jan. 24, 1923. Cutlery blades are made as described in Specification 171,017 by drawing the material out under a drop or other power hammer 12, Fig. 6, having a movable anvil tool 7 with a varying transverse bevel 8 to act on successive parts along the length of each blade. The tool 7 may slide on the anvil or this may be pivoted at 10 and connected by a link 11 to the smith's seat or to his body. The blank mav be notched at both ends 1, Fig. 1, and grooved at 2 and the bolsters 3 and tangs 4 or handles are formed at one or both ends before the blades are drawn out.
Patent GB-1098363-A (GB)
Title: Improvements in or relating to surface markers for roadways, pavements and other surfaces
IPC: E01F9/553
Filed: 1966-01-17
Abstract: 1,098,363. Road markings. PACEMIN A.G. Jan. 17, 1966 [Jan. 22, 1865], No. 2188/66. Heading E1G. A roadmarker, adapted to be installed with one surface flush with the surface to be marked, comprises a hollow transparent body having a fluorescent layer at the internal surface of the body. The marker may be of glass or synthetic-resin and may define a road stud, a line or portion thereof or an arrow or like signal.
Patent GB-1399422-A (GB)
Title: Coin testing device
IPC: G07D5/04
Filed: 1973-01-16
Abstract: 1399422 Testing coins INTERNATIONAL CYBERNETIC MACHINES Ltd 16 Jan 1973 [17 Jan 1972] 2247/73 Heading G4V  A coin testing device comprises a pivoted diameter/weight testing cradle 9 having coin receiving surfaces 12, 13 projecting into a coin entry shoot 6, means 10 for withdrawing the coin receiving surfaces from the shoot and a coin entry sensing device operatively associated with the withdrawing means whereby the latter are operated a preset time after the entry of a coin is sensed and the coin has not passed to an accept shoot 8. In the embodiment described the entry and exit sensors 27, 28 may be photo-electric, capacitive or inductive sensors, or microswitches, and are connected to an alarm system that controls a solenoid 10 to the armature of which the cradle 9 is pivoted. An electromagnet 26 is provided between the entry sensor 27 and cradle 9 and is de-energized by the alarm system after the cradle 9 has been withdrawn to allow any ferrous coins held by the electromagnet to pass to reject shoot 7. The armature of the solenoid 10 also carries a device 40 for holding small coins that have passed through the cradle until the cradle and device are withdrawn. Overweight coins which pass into accept shoot 8 may be removed by a second cradle in which the acceptable coins are those that do not tilt the cradle. A device for handling coins accepted by the tester is shown in Fig. 9 (not reproduced) and comprises a flap (56) movable to direct the coins into either a stacking tube (58) or storage hopper (59) and a level sensor (60) in the channel leading to the stacking tube to determine when the latter is full and operatively connected to the flap (56).
Patent GB-113008-A (GB)
Title: Improvements in Optical Indicating Instruments.
Inventor: DALBY WILLIAM ERNEST
IPC: G01D15/14
Filed: 1917-02-15
Abstract: 113,008. Dalby, W. E. Feb. 15. 1917. Indicating, optical devices for.-Relates tc a self-contained optical element for use in indicating apparatus such as engine indicators and extensometers a n d comprises two reflecting surfaces capable of movement about axes preferably at right-angles and mounted close together with a focusing lens between them or attached to one of them so arranged that a diverging pencil falling on one reflector will be twice reflected and emerge as a converging pencil for focussing on a screen. In the construction shown in Fig. 1 two mirrors 1, 2 are mounted on parallel pivots in a box 5 and have the lens placed between them. A source of light and an aperture 14 are carried by an adjustable tube 8 sliding in a tube 7 projecting from the box 5. The image of the aperture 14 is projected on to a screen or plate 13 held in a chamber In the construction shown in Fig. 3 for an indicator for an internal-combustion engine the mirrors 16, 17 are mounted so that they turn about axes at right-angles. The pressure from the engine acts on the diaphragm 18, on which rests a rod 22 so that movements of the diaphragm cause the spring-pressed mirror 16 to tilt about its pivot 20. The mirror 17 is connected to the engine piston. The construction shown in Figs. 4 and 5 is applied to a load-extension indicator for testing a specimen such as 37 attached to a calibrated steel tube 36; the mirrors are totally reflecting prisms 34, 33 to which movements corresponding to the extension of the tube 36 (i.e. to the load) and to the extension of the specimen 37 are respectively imparted, the pivoting axes of the prisms being at right-angles. The prism 34 is spring-pressed against a rod 39 bearing in a cup 40 at the outer end of the tube 36. The prism 33 is spring-pressed against a rod 47 bearing against an arm of a weighted bell-crank lever 46, which is connected as shown to a bell-crank lever 44 with the end of its long arm resting on the lower end of the specimen 37. In the construction shown in Fig. 6 the reflectors and lens are mounted in a box 51 made to fit within the tube 52, the extension of which gives a measure of the load supplied to the test specimen. The lens may be mounted on one of the prism faces, or a prism face may be worked in a lens form.
Patent GB-535128-A (GB)
Title: Improved automatic control apparatus for use in direct-current arc-welding
IPC: B23K9/10
Filed: 1940-02-06
Abstract: 535,128. Actuation of switches. ABBEY, A. (Wilson Welder & Metal Co., Inc.). Feb. 6, 1940, No. 2324. [Class 38 (v)] [Also in Group XXXV] A motor generator 29 supplying a welding arc is started by closure of the D.C. circuit at the welding electrode and stopped a pre-determined time after removal of the electrode. A disc 4, Figs. 1, 13, carried on a lever 2 of a transformerrelay carries stop pins 25, 26 which, respectively, open contacts 22, 21, in a retaining circuit for a switch 30, and bridge contacts 21, 24 in a closing circuit therefor. The edge of the disc 4 lies in contact with a spindle 17 of an auxiliary motor 6, which by the frictional engagement has wound up a spiral spring 19. Contact between the electrode and work completes the circuit of the D.C. generator through a coil 11 embracing the relay core 1 and a transformer core 7, one primary winding 10 of which is at this time energized from the A.C. supply. The armature 12 is attracted since current is induced in the winding 11 and the disc is freed from the spindle 17 so that the pin 26 closes the circuit energizing switch 30 to start the motor-generator and deenergize the winding 10. The D.C. welding current then holds the armature 12 until removal of the electrode from the work, whereupon the disc again makes contact with the spindle 17. After the time taken to rewind the spring 19 the retaining circuit of the switch 30 is opened by the pin 25, and the motor generator and auxiliary motor 6 are stopped. In another form, Fig. 14, a sector 5 carries a loosely-pivoted arm bearing mercury switches 71, 72 controlling the switch 30 and winding 10 so that the arm rotates through 180 degrees when the sector is rotated through 90 degrees.
Patent GB-563388-A (GB)
Title: Improvements in and relating to screens for sewage and other liquids
IPC: E02B8/02
Filed: 1943-02-12
Abstract: 563,388. Sewage and like screens. HARTLEY, C. J. Feb. 12, 1943, No. 2329. [Class 46] In screens for sewage &c., in which the bars a are cleared by reciprocating rakes d, contact of the rake and bars is prevented on the downward movement by mounting the rake in a pair of side guides b pivoted at about midway of their length in trunnions m at the side of the channel. Chains e lift the rake and pass over sprockets f at the top of the guides b and over sprockets g supported on vertical guides i for a crossshaft carrying counterweights h attached to the chains e. The rake is lifted and lowered by a handle j<1> on a cross-shaft j carried by the guides b and geared by a chain k and sprockets k to the shaft of the sprocket f. For tilting the guides h during the lifting of the rake, a crossshaft o may be provided with arms p operating push-rods q attached to brackets r on -each guide b. Gearing may connect the shaft o to a handle or other operating means. A motor may be mounted on the top of the rake guides for lifting the rake, and for lifting and lowering, if of the reversing type, automatic stopping means being provided for use at the end of the stroke. Balance weights may, in this case, be dispensed with.
Patent GB-686673-A (GB)
Title: Improvements in or relating to photographic camera apparatus
IPC: G03B17/52
Filed: 1948-01-27
Abstract: 686,673. Photographic exposure, developing and finishing apparatus. STEVENS, A. H. (International Polaroid Corporation). Jan. 27, 1948, No. 2430/48. Class 98 (i). The apparatus comprises a member for supporting the entire exposed area of a film in superposed relationship with another sheet material, which film or sheet material has a rupturable liquid-carrying container mounted thereon and placed to discharge its contents between the film and sheet material and over the exposed area, an elongated pressureapplying member and means for mounting the supporting member and the pressure applying member for relative movement to rupture the container and so release and discharge its contents. The film or sheet material with the container mounted thereon may be those as described in Specification 684,592 and may be such as to develop the film and provide a positive picture corresponding to the negative in the film directly in the sheet material Two forms of the apparatus are shown, in the first, Figs. 1, 3, a camera is made in two parts, sectior 22 carrying the bellows 14 and other usual fittings and section 24 on the opposite side of the bellows and slidable on section 22 as in Fig. 3 Film 30 from cartridge 32 (Fig. 1) is passed across the focal plane ir contact with the front surface o plate 36 for exposure, then round guide means 40, across the rear sur face of plate 36, whence via guide rollers 42, 44, 46, the film may be wound on take-up spool 48 by hand crank 50. A magazine 54 in the lower apparatus section 24 accommodates a plurality of container-carrying sheets 56 the uppermost of which is released from the remainder and held against the film 30 while the exposed portion of the film is adjacent the rear surface of plate 36 with the aid of friction roller 90, and on sliding section 24 to the left as shown in Fig. 3, pressure roller 92 compresses the container 58 on sheet 56 to release liquid and effect processing, normally resulting in a positive on sheet 56 which is then removed; after which section 24 is returned to its position in Fig. 1, leaving the camera ready for the next exposure. In the second form of the apparatus, Fig. 4, photo-sensitive film 140 and container-carrying sheet material 152 are drawn from cartridges 138 and 150 respectively in superimposition into the focal plane by leader 157 projecting- through light-tight slot 160, exposure is effected through the transparent base of the film and then handle portion 174a of yoke-like member 174 is pulled outward to draw pressure roller 168 to fracture container 154a on the sheet material 152 and spread the processing liquid, when, after a short interval, both film and sheet material are withdrawn and severed, and sheet 152 carrying the positive picture may be separated from the film 140.