baber/WOPTO huggingface dataset:
Patent GB-635382-A (GB)
Title: Electrically actuated stop-block for mine-cars
IPC: B61K7/20
Filed: 1947-10-10
Abstract: 635,382. Electric motors. MATEMINE. Oct. 10, 1947, No. 27234. Convention date, Feb. 22, 1946. [Class 35] [Also in Groups XXX and XXXVII] A stop-block of the kind located at the centre of a rail track and adapted to b) elevated to the height of the wheel axles of a car or train of cars is operated by an electric motor, the rotor of the motor acting as nut on a screw threaded stem which carries the stop-block and is moved upwardly by the revolution of the rotor until it becomes locked at the end of the upward travel whereupon the rotor, in continuing its rotation, is moved longitudinally backwards and ultimately opens the circuit to stop the motor. When the motor is again switched on, for retraction of the stem and stop-block, stopping is effected by the screw-threaded stem at the end of its downward movement. A head 1 is provided with two thick side ribs 5, each formed with a vertical guiding-groove on the outside face for a movable finger 6, the two fingers being interconnected by a transverse pin 9 mounted in a slider 19, so that the ends of the pin project through vertical slots 8a into recesses in the respective fingers 6. A screwthreaded stem 18 integral with the slider 19 extends downwardly into engagement with internal screw-threads in a sleeve shaft 14 on which the rotor 13 is mounted, the lower portion of the sleeve shaft being formed with a shoulder to engage a spring 16 on a ball-thrust bearing 15. The lower ends of the screw 18 and sleeve 14 respectively bear against push rods carried by cylindrical contact heads 22, 23 located in separate bores in an insulating block 21 and serving respectively, when in the requisite positions, to close a circuit between pairs of diametrically opposed spring-pressed contacts 24 or 25 connected in relay circuits of a reversing-switch. With the fingers 6 initially in their lower position the operation of a drum controller actuates the rotor so that the screw 18 is raised to its upper position to elevate the fingers 6, and then locks, whereupon continued rotation of the rotor causes the sleeve shaft 14 to move downwardly and depress the contact head 22 to open the motor circuit. To return the fingers 6 to their retracted position the controller is operated to close the motor circuit through the contact head 23, this circuit being opened when the lower end of the screw 18 is pressed downwardly upon the pusher pin associated therewith.
Patent GB-602829-A (GB)
Title: Improvements in clutch mechanism
IPC: F16D43/26
Filed: 1945-10-17
Abstract: 602,829. Clutch mechanism. ROSE, A. G., KAY, J. A., and ROSE BROS. (GAINSBOROUGH), Ltd. Oct. 17, 1945, No. 27279. [Class 80 (ii)] In a clutch mechanism for stopping machinery, a driving member is de-clutched from the input shaft after a predetermined number of revolutions of the driven member on the output shaft, means being carried by the driven member for engaging the clutch member rotating with the input shaft for disengaging the clutch. The hollow input shaft 19 has a clutch housing 24 formed with a slideway 26 at its forward end, in which slides a clutch member 27 having a dog 36 which is engageable with a corresponding dog 37 on a driving gear 16. The clutch member 27 is movable radially for the engagement of dogs 36, 37 by a conical portion 34 of an operating shaft 33 sliding in the shaft 19. A spring detent 31 holds the member 27 in either the operative or inoperative position. A driven gear 14 on the output shaft 17 and meshing with the gear 16 has a disengaging arm 39 pivoted thereon, the arm having a roller 41 which bears against a cam 42 secured to the main casing 11. The cam is shaped to ensure that the roller 41 crosses the pitch lines of the two gears once in each revolution of gear 14, and in so doing depresses the clutch member 27 to disengage dogs 36, 37. The number of revolutions of shaft 17 before the drive is disconnected is determined by the ratio of the numbers of teeth on gears 14, 16.
Patent GB-669279-A (GB)
Title: Improvements in pressure cookers, autoclaves or the like
Inventor: JENNER ALBERT EDWARD
IPC: A47J27/09
Filed: 1950-11-08
Abstract: 669,279. Safety valves. EASIWORK, Ltd. Nov. 8; 1950, No. 27295/50. Class 135. A safety valve for a pressure cooker &c. comprises a tubular valve body 10, Figs. 2, 3, having a rotatable sleeve 18, a plunger 24 within the sleeve 18 carrying a pin 25 passing through a helical groove 26 in the sleeve and a longitudinal slot 16 in the body, and a valve head 28 carried on a rod 31 passing through the plunger and urged by a spring 27 against a seat 17. Rotation of a cap 19 secured to the sleeve raises or lowers the pin 25, together with the plunger, to adjust the spring loading and hence the blow-off pressure of the valve which is indicated by a mark 34 on the pin and a scale of pressures on the body. The sleeve is held in the body by pins 20 urged by a spring ring 22 into a groove 21. Indents 35 formed in the groove engage the right-hand pin 20 to locate the plunger in its adjusted position. The sleeve, plunger and valve head may be withdrawn from the body as a unit for cleaning.
Patent GB-752059-A (GB)
Title: Improved motor vehicle clutch
IPC: F16D23/14
Filed: 1954-09-22
Abstract: 752,059. Clutches. OPEL AKT.-GES., A. Sept. 22, 1954 [Nov. 25, 1953], No. 27394/54. Class 80(2) The guide sleeve 23 for a clutch throwout ring 17 is resiliently clamped between the clutch casing 10 and an adjacent casing 27. The sleeve 23 has a stepped flange 29 centred in a corresponding recess in the casing 10 and three spring tongues 30. The latter are located in recesses in the casing. 10 and initially project beyond the end of the casing 10. When the casing 27 is bolted in position the tongues 30 are forced outwardly and the sleeve 23 is thus secured. The device is applied to a clutch having a dish-shaped clutch spring 15 and pivot rings 20 connected to the flywheel 12, the pressure plate 21 being attached to the flywheel 12 by a spring 22.
Patent GB-1028511-A (GB)
Title: Improvements in and relating to optical masers
Inventor: DUNSMUIR ROBERT
IPC: H01S3/06
Filed: 1961-07-28
Abstract: 1,028,511. Optical masers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 25, 1962 [July 28, 1961; Aug. 21, 1961], Nos. 27503/61 and 30097/61. Heading H3B. A separate optically reflecting member is disposed in facing spaced relation with one end face of a laser crystal to provide internal reflection in the assembly. The space between the reflecting member and the crystal end face is preferably filled with a light transmitting medium having a refractive index substantially equal to that of the crystal. In Fig. 2, a ruby crystal 1 has flat and parallel end surfaces 2, 3 spaced from flat and parallel reflecting walls 6, 7 of a container 5. The space between the crystal and the walls of the container is filled with methylene iodide which has substantially the same refractive index as ruby. The methylene iodide may be circulated for cooling purposes in two similar circuits as shown. The temperature fall across one end face in one circuit is compensated by a similar temperature fall across the other end face in the reverse direction. A change in the optical length of the path between reflectors due to expansion of the crystal and a change in refractive index due to temperature changes can be avoided by supporting a reflector 6 in a frame 7 mounted at a point 8 intermediate the ends of the crystal. The frame is kept at constant temperature by the cooling fluid and does not expand. The ends of the crystal and of the container may be spherical caps.
Patent GB-915708-A (GB)
Title: Cradle for lifting articles
IPC: F27D5/00
Filed: 1961-07-28
Abstract: 915,708. Lifting-devices. PACIFIC SCIENTIFIC CO. July 28, 1961 [Aug. 1, 1960], No. 27521/61. Class 78 (4). When a pin 1, Fig. 2, is lowered by a lifting device into a central hole 2 in a load-supporting frame 5 plates 14 are pivoted apart about pins 16 and swing back to engage behind a shoulder 17 to enable the frame 5 to be lifted. The pin is released by lowering it further, with the frame 5 resting on a support, when a collar 20 pushes the plates 14 so far apart that latches 23, 25 pivoted to arms 21 of bell-cranks 15, engage and are held by projections 26, Fig. 4, until they are tripped by a shoulder 27 as the pin is withdrawn. As described, a load may be supported by rods attached to holes 6, Fig. 2, as shown in Specification 874,873, the present invention being an improvement of the apparatus described in Specification 874,873.
Patent GB-533116-A (GB)
Title: Improvements in and relating to diaphragm valves
IPC: F16K7/12
Filed: 1939-10-10
Abstract: 533,116. Diaphragm valves. SAUNDERS VALVE CO., Ltd., and SAUNDERS, P. K. Oct. 10, 1939, No. 27604. [Class 135] A diaphragm valve of the kind provided with a compressor member for pressing the diaphragm against its seat, said member having a series of projecting fingers which inter-engage a series of diaphragm supporting toes projecting inwards from the valve bonnet has the compressor guided by one or more deep toes. In the form shown in Figs. 1 and 3, the valve is actuated by a screwed spindle 14 rotatably mounted in the bonnet 5 and engaging a nut 13 mounted in the compressor member 6. This member has a pair of arms projecting transversely to the plane of the weir 2 and provided with a series of transverse fingers 8, 9. The central fingers 9 engage grooves in the bonnet so providing a continuous surface right across the compressor in the plane of the weir. Toes 12 on the bonnet of considerable depth guide the compressor by contacting with its central cylindrical part. Specifications 321,892, [Class 135], 362,084, 434,664, 434,684, 468,664, 516,526 and 516,569.
Patent GB-677265-A (GB)
Title: Improvements in and relating to transport equipment suitable for conveying solid material such as freshly cut coal
IPC: B65G19/28
Filed: 1949-10-29
Abstract: 677,265. Conveyers. DIRECTIE VAN DE STAATSMIJNEN IN LIMBERG. Oct. 29, 1949. [Oct. 30, 1948] No. 27771/49. Class 78 (i). A trough or tray along which material such as freshly cut coal is conveyed by push plates, flights or scrapers attached to one or more chains and which is composed of articulated sections, is characterised in that the sections have such detachable co-operating pin-and-slot end-to-end engagement and are so fastened to each other by means which retain them in such engagement as to enable the sections to articulate in the horizontal and vertical planes relatively to one another. In the embodiment shown, the trough is built-up of sections 1, 2, the section 1 having pins 3 at one end engaging in slots 5 formed in a connecting piece 4 welded on the adjacent end of the section 2. The heads 6 of the pins are inserted in the wide parts 7 of the slots and subsequently moved along the slot so that they engage behind the narrow parts 8. The sections are held in this position against accidental disconnection by a pin 12 extending through holes 13 in projections 10 on the section 1 extending through openings 11 in the vertical wall of the connecting piece 4. In a modification, the slots are L-shaped and the pins T-headed bolts.
Patent GB-1393386-A (GB)
Title: Electromagnetically operated solid state circuit controlled timing device
IPC: H01H5/02
Filed: 1972-06-14
Abstract: 1393386 Magnetically held switches SQUARE D CO 14 June 1972 [17 June 1971] 27785/72 Heading H1N [Also in Divisions G3 and H3] In an arrangement for timed control of electric circuits a switch 18 is actuated by first electromagnet 14, 26, 28, 30 with a time delay introduced by a permanent magnet holding device 20 and determined by a timing circuit (Fig. 10, not shown) which pulses a second electromagnet the flux of which opposes that of the permanent magnet, to release the holding device. The switch may be single pole double throw snap acting type. Thus the switch will be actuated from a first position to a second position a predetermined interval after the first electromagnet is energized (TDE mode) or alternatively will remain in its actuated second position for a predetermined interval after the first electromagnet is de-energized, (TDD mode). The first electromagnet coil 28 has a secondary winding with terminals 36 connected to the timing circuit Fig. 10. When A.C. is applied to the coil 28 it is energized to cause armature 30 to move upwards into engagement with magnetic core part 26, and produces an output from secondary terminals 36. Movement of the armature 30 causes an actuator 16 and a cam 25 (detailed Fig. 7, not shown) to move upwardly. A cam surface 104 of the cam 25 engages a downwardly facing surface 113 of a lever 70 (detailed Fig. 6, not shown) causing the lever to rotate counter-clockwise to its actuated position (illustrated Fig. 3, not shown). Movement of lever 70 causes an armature 86 of the holding device, to rotate counter clockwise to a position whereat its portion 98 engages a pole face 92 and causes a lever 122 (detailed Fig. 6, not shown) to rotate counter clockwise to move a plunger 130 against a spring bias, so as to actuate the snap switch 18. When the first electromagnet 14 is de-energized the armature 30 and actuator 16 will move downwardly to deactuated position. The lever 70 however, is prevented from moving since permanent magnet 76 holds the armature 86 which is coupled to the lever 70. Thus levers 70, 122, plunger 130 and switch 18 are held in actuated positions. The magnet coil 78 is energized briefly by circuit Fig. 10, a predetermined interval after coil 28 is de-energized, thereby releasing the armature and allowing the levers and switch to return to their deactuated positions, assisted by the spring loaded plunger. The armature may be used manually. Similarly the switch may be actuated a predetermined interval after energization of coil 28.
Patent GB-1253629-A (GB)
Title: Polyester textile materials and their production
Inventor: BUZANO MICHEL
IPC: D02J1/22
Filed: 1969-06-02
Abstract: 1,253,629. Varying denier filaments. SOC. RHODIACETA. 2 June, 1969 [6 June, 1968], No. 27885/69. Heading B5B. [Also in Divisions D1-D2] A continuous filament polyester yarn e.g. polyethylene terephthalate, is characterized in that each filament comprises on the microscopic scale, alternating zones whose diameter decreases and increases respectively, the zones, of smaller diameter corresponding to zones of higher crystallinity index and higher molecular orientation and vice versa, each filament having apparent bulk, and the yarn as a whole having a three-dimensional crimp. The filaments may also exhibit the alternations of zones on the macroscopic scale. A process for producing the yarn comprises partially stretching, in one or more stages to a ratio of at least 2, a continuous filament polyester yarn, the partial stretch or at least the first stage thereof being in contact with a crack-producing agent, thermally treating the yarn in a relaxed state and twisting, setting and untwisting the yarn. The twisting, setting and untwisting treatment may be performed on a false twist apparatus e.g. a false twist spindle having crossed bars. The crack-producing agent is preferably an aqueous lower aliphatic alcohol e.g. ethanol, which may be used at ambient temperature and the degree of stretch of the yarn in contact with this agent may be varied. The relaxation of the yarn during heat treatment may also be varied. The twisting, setting and untwisting treatment may be carried out at a temperature in the range 90-150‹ C. preferably 90-125‹ C.
Patent GB-1235901-A (GB)
Title: Improved method of producing thermoplastic netting
IPC: B29C48/05
Filed: 1968-06-12
Abstract: 1,235,901. Finishing fabrics; nets. CONWED CORP. 12 June, 1968 [12 Jan., 1968], No. 28020/68. Headings D1R and DIS. The molecules of a web 20 of polymeric thermoplastic net having two sets of strands 80, 90 in which the strands of one set cross the strands of the other set at an angle to form integral joints, are oriented by heating the net 20, stretching first only the strands of one set of strands along their length while the net is heated, then stretching only the strands of the other set along their length while the net is heated, and cooling the net. As shown, the net 20, e.g. of polypropylene, passes from a roll 22 around idler rolls 28 into a drafting mechanism 12 comprising large heated rolls 34, 36, 38, drafting rolls 46, 48 and idler rolls 32, 42, 44. The rolls 38, 46 are driven at a peripheral speed greater than that at which the rolls 34, 36, 48 are driven to effect longitudinal stretching of the net 20 between the rolls 46, 48. If desired the rolls 42, 44 may be driven at the same speed as the rolls 46, 48, respectively. The rolls 34, 36, 38 are heated by circulation of hot water or oil therethrough and the roll 38 is heated to a lower temperature than the rolls 34, 36 so that the net is slightly cooled to set the resin. The net 20 passes across a space 70 and into a tentering mechanism 14 in which the edges are gripped by endless tenter chains 50, 52 which transversely stretch the net whilst it passes through an oven 40. The oven 40 comprises three sections 74, 76, 78 heated by a hot gas blowing mechanism 82 so that the section 78 is at a higher temperature than the section 76 which is at a higher temperature than the section 74. The net 20 passes over cooling fans 58 and is taken up by a roller 60. At the joints 100 of the oriented net the strands are free of any visibly discernible webbing and are not substantially deformed, Fig. 4.
Patent GB-944035-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L7/00
Filed: 1959-08-17
Abstract: 944,035. Coin-freed suction cleaners. S.Y.SASS. Aug. 16, 1960 [Aug. 17, 1959], No. 28045/59. Heading G4V. [Also in Divisions A4 and B1] A coin-freed suction cleaner installed at a garage for use by customers for cleaning the insides of their motor cars is housed in a wheeled casing 10, Fig. 2, and comprises an electric motordriven suction fan unit 11 operative to draw air through a flexible conduit 18 and filter bag 12, a time switch operative to control operation of the motor of the said unit for a predetermined time, and coin-freed means controlling the operation of the time switch to start the motor. The unit 11 houses two motors each driving one or more impellers, and the filter bag 12 extends from the unit 11 into a lower air-tight compartment which has a transparent window 24 and a connection or connections for the hose 18 or, if desired, two such hoses. The bag, as shown in Fig. 5, is carried on a wire frame 25 and light springs 32 tend to keep it extended to cylindrical form. As air passes inwardly through the bag it tends to take up the hour-glass shape of the frame but variations in the air flow cause it to move in and out so that dust drops to a pan 13 which is removable through a door 23; the fan unit discharges through a conduit 22. A lamp 68 indicates that the motors are running and a further lamp is provided within an ornamental globe 69. A coin 62a inserted in a channel 60, Figs. 6 and 7, drops to rest on a foot 46 of a switch-operating lever 45 and, when a button 64 is pressed in, the coin moves a lever 55 to withdraw the driven member 39 of a slipping clutch of which the other member 37 is constantly driven by a synchronous motor 36. The released member 39 is rotated back by a spring 53 until a pin 48 reaches the end of a slot 65 in a fixed plate 66 and a cam surface 43 moves the lever 45 to close a motor switch 35 to start the fan motors and remove the foot 46 from beneath the coin. The coin falls to a drawer and the clutch re-engages so that the motor 36 slowly drives the member back until the finger 44 on the lever 45 enters a notch 42 and opens the switch 35. The pin 48 drives a pointer 51 which indicates either the elapsed time or the time remaining for use.
Patent GB-1449999-A (GB)
Title: Container
IPC: A62B19/00
Filed: 1974-06-25
Abstract: 1449999 Container for breathing mask filter INDUSTRIE PIRELLI SOC PER AZIONI 25 June 1974 [4 July 1973] 28070/74 Heading BIT A container for attachment to a breathing mask and adapted to contain filter medium 3, such as charcoal, felt or glass wool, comprises a cup 2 with a perforate base and a lid 4, both of synthetic plastics, the lid being resilient and less rigid than the cup so as to make a snap connection therewith when the lid is forced past inwardly projecting lip 6. The cup and lid may be of the same or different plastics.
Patent GB-408533-A (GB)
Title: Improvements in or relating to apparatus for recording or reproducing sound on or from films
IPC: G11B7/00
Filed: 1933-10-11
Abstract: 408,533. Optical sound recording or reproducing apparatus. SOC. POUR L'EXPLOITATION DES BREVETS A. G. I., 88, Rue des Dames, Paris. Oct. 11, 1933, No. 28121. Convention date, Dec. 17, 1932. [Class 40 (ii).] In optical recording or reproducing apparatus, adjustment about its longitudinal axis of the tubular casing 2 which contains the optical system is effected by means of a pin 9 eccentrically mounted on a shank 8 which passes through a hole in a bracket 7 supporting the casing 2. The pin 9 engages in a keyhole slot 12 in the part 2, and withdrawal of the pin is normally prevented by an enlarged head 13. When it is desired to withdraw the casing 2 from the bracket, the casing is first slidden endwise until the enlarged part 14 of the slot 12 is in line with the head 13, whereupon the pin can be disengaged from the slot. A slit 4, or a lamp having a rectilinear filament, is carried by the lens casing 2.
Patent GB-1158459-A (GB)
Title: Improvements in Machines for Sawing Samples of Brittle Materials
IPC: B28D5/04
Filed: 1967-06-19
Abstract: 1,158,459. Severing by grinding. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. 19 June, 1967 [27 Dec., 1966], No. 28176/67. Heading B3D. A machine for sawing samples of brittle materials by rubbing the samples with a metal wire array against which they are pressed comprises: (a) a plurality of wire guides having grooves for carrying the wires of the array, (b) means for reciprocating at least one of the wire guides to cause the wires to reciprocate with respect to the samples, and (c) a vat containing an abrasive mixture of abrasive powder and a liquid, the ratio by volume of abrasive powder to liquid being at least equal to unity, the vat being arranged so that at least one of the wire guides is at least partially submerged in the abrasive mixture. In Fig. 2 the bottom wire guide 3 is submerged in abrasive mixture in the vat 10. The bottom of the vat is semi-cylindrical, its axis being non-coincident with the axis of the wire guide so that a restricted passage 15 is provided. In Fig. 4 the bottom wire guides 33, 43 are submerged in abrasive mixture in the vat. In Fig. 5 the wire guides 1, 2 are submerged in abrasive mixture in the vat. The samples may be submerged in the abrasive mixture.
Patent GB-983445-A (GB)
Title: Sound-adsorbing plate and apparatus for producing it
IPC: E04B1/84
Filed: 1961-08-03
Abstract: 983,445. Underlay. PORON INSULATION Ltd. Aug. 3, 1961, No. 28298/61. Heading A4S. [Also in Division B5] An underlay, formed from foamed synthetic resin material by cutting a block of the material with wires (Division B5), comprises two superposed plates each having one surface corrugated. The plates may be placed with their corrugated surfaces interengaging, Fig. 1, or both with their corrugated surface facing downwards forming air channels, either with their ribs parallel Fig. 3, or with them crossed.