baber/WOPTO huggingface dataset:
Patent GB-1437664-A (GB)
Title: Sewing machine provided with a sewing thread trimming device
IPC: D05B65/02
Filed: 1974-04-18
Abstract: 1437664 Cams &c. NECCHI SpA 18 April 1974 [27 April 1973] 16929/74 Heading F2K [Also in Division D1] A cutting mechanism in a sewing machine (see Division D1) is actuated by mechanism including a cam 18 and follower 22, the follower having a coil 49 magnetically linked therewith so that the follower only follows the periphery a, b, c, d of the cam when the coil is energized. The follower 22 is pivoted at 23 to a fixed mounting and spring urged to move its arms 24, 25 away from the cam. Between the arms a pin 53 of non-magnetizable material carries a central follower roller 51 of similar material and two rollers 50, 50<SP>1</SP> of magnetizable material. Energization of coil 49 causes a magnetic field which in the region of the gap between rollers 50, 50<SP>1</SP> extends through the cam 18 to overcome the biasing spring. The follower is then moved by the rotating cam to oscillate a movable cutter blade.
Patent GB-852221-A (GB)
Title: Liquid propellant supply systems for rocket motors
Inventor: FLETCHER ALAN LESLIE ROY
IPC: F02K9/68
Filed: 1958-05-27
Abstract: 852,221. Jet propulsion plant. NAPIER & SON Ltd., D. May 27, 1959 [May 27, 1958], No. 16945/58. Class 110 (3). A rocket propellant supply system comprises a main propellant tank, a booster pump arranged to pump liquid from the main tank to the inlet of the main pump feeding the combustion chamber and a motor arranged to drive the booster pump, the motor being driven by pressurized liquid propellant delivered by the main propellant pump. The invention is described with reference to a dual rocket motor. The hydrogen peroxide supply system comprises a tank 15 and a main propellant supply conduit 16, 17 leading from the tank through a turbine driven pump 18 and automatic pressurecontrol valves 23, 23<SP>1</SP> to the main catalytic decomposition units 13, 13<SP>1</SP>. The pump 18 is driven by a turbine 19 driven by the decomposition products of hydrogen peroxide from the unit 20 supplied with hydrogen peroxide from the conduit 17. The rate of supply of hydrogen peroxide is controlled by a valve 28 responsive to the discharge pressure of the pump 18. For starting purposes, a pump 31 driven by an electric motor 32 is provided. An accumulator 40 comprising a flexible membrane 42 pressurized on the side remote from the propellant is also provided. A booster pump unit comprising a pelton wheel 50 driving a centrifugal pump 52 is mounted within the tank 15. Hydrogen-peroxide tapped from the conduits 17, 17<SP>1</SP> is supplied to the pelton wheel nozzles 55, 56 through tappings 57, 58. Liquid hydrogen peroxide is only admitted to the nozzles 56 when propellant is actually being admitted to the second catalytic unit 131. A pump 62 returns the pelton wheel exhaust to the tank 15. A bleed passage 65 with a relief valve 66 is provided in the supply line 16 between the pumps 52, 18. The turbine 19 also drives a pump 70 supplying paraffin to the burners 12, 121. To start the rocket, switch 75 is closed to energize solenoids 76, 77 and open valves 78, 79 in the paraffin and hydrogen peroxide supply lines. Switch 80 is then closed, starting the motor 32 and the pump 31 supplies liquid hydrogen peroxide to the auxiliary catalytic unit 20 which starts the pumps 18, 70. As soon as the discharge pressure of the pump 18 rises appreciably, liquid hydrogen peroxide is fed to the pelton wheel 50 by conduit 57 and the booster pump 52 energized. At the same time, starter pump is cut out of operation by operation of switch 81. The paraffin control-valve 74 is opened automatically as soon as the pressure of decomposed hydrogen peroxide in the combustion chamber 10 reaches a predetermined value. A switch 85 is closed to operate the second rocket motor.
Patent GB-447354-A (GB)
Title: New or improved apparatus for automatically closing doors, windows and the like
IPC: E05F3/16
Filed: 1935-06-12
Abstract: 447,354. Preventing fires. LENTAIGNE, R. V., 27, Rue de l'Aviation, Le Havre, and CHARRIERE, J. G. M., 3, Route de Paris, Briare, Loire, both in France. June 12, 1935, No. 16980. Convention date, June 12, 1934. [Class 47 (ii)] [See also Groups XXV and X] In a device for automatically closing hinged or sliding doors, windows and shutters, of the kind comprising a flexible band wound on a drum under the action of a coiled spring, a centrifugal governor is provided to regulate the speed of the device when moved by the spring. The device may come into action as soon as the door is released after being opened, or holding means may be provided, to be released from a distance or by thermal or time control means. In the form shown, the flexible band passes round a guide pulley 30 (which is dispensed with in the case of a sliding door) and is wound on a drum 26 keyed on the spindle 5 of a spiral spring 3 which is stressed by the opening of the door. The spindle 5 carries a ratchet wheel 6 engaged by a pawl 7 on a toothed wheel 9 which is free on the spindle 5 and which drives a governor spindle through gears 12, 14, 15, 17, 18 ; the governor comprises a pair of friction blocks 20, connected by a spiral spring, sliding on a cross-bar on the governor spindle to engage the wall of the housing when the speed is excessive. A wheel 22, having frictional engagement with the wheel 17, has a pair of stop lugs, and a wheel 25 on the governor spindle has a pair of teeth which engage with one of the stop lugs on wheel 22 when the door is being opened, to prevent operation of the governor mechanism; the other stop lug engages the housing to hold the wheel 22 clear of the teeth on wheel 25 during the closing movement, to allow free operation of the governor. If the door is closed by hand at a higher speed than that of the device, the flexible band forms a loop, which is subsequently taken up by the operation of the device. If it is desired to hold the door open until released by distant control means, the wheel 22 is not used, and the wheel 25 is frictionally mounted on the governor spindle and is engaged by a pawl which may be withdrawn electromagnetically or mechanically to free the mechanism ; the frictional connection of wheel 25 avoids shock in case the pawl is released into engagement with the wheel when the mechanism is in motion. The pawl may alternatively be withdrawn by the action of a bimetal strip when the latter is heated either by its surroundings (e.g. in case of fire) or by a heating resistance controlled from a distance ; this method of control may also be arranged to operate when the temperature is below a predetermined value. The device may be mounted on the door or the frame, and in the case of double doors the two bands may be wound on a single drum. In the case of vehicle doors, the holding device may be interconnected with the vehicle controls to ensure closing of the doors before the vehicle is started.
Patent GB-554154-A (GB)
Title: Improvements in high frequency electron discharge devices
IPC: H03B9/01
Filed: 1941-08-16
Abstract: 554,154. Holders for thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. (International General Electric Co., Inc.). Aug. 16, 1941, No. 17017/42. Divided out of 552,672, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 18, 1942. [Class 38 (i)] [Also in Group XL] An electron discharge device for use at ultra high frequency comprises an evacuated enclosure having metal cathode and anode support members 115, 117 respectively forming the end walls thereof, a hollow vitreous tube 119, 120 forming the lateral wall thereof, and a control electrode consisting of an apertured metal plate 116 extending through the lateral wall. The device is adapted for use in the resonator arrangement of Specification 552,672 and is arranged so that it can be inserted directly into the resonator, the plate 117 having a bolt 135 which screws into the resonator disc 881 and plates 116, 115 making contact with resonator discs 87<SP>1</SP>, 861 through resilient dentate annuli 140, 143. Plate 116 also carries a resilient dentate annulus 141. Reference has been directed by the Comptroller to Specification 552,672.
Patent GB-1509797-A (GB)
Title: Encapsulation process
IPC: C11D3/395
Filed: 1975-04-24
Abstract: 1509797 Detergent compositions containing coated bleach particles UNILEVER Ltd 24 April 1975 17047/75 Heading C5D [Also in Divisions B1-B2 and D1] Detergent compositions for domestic use in washing clothing or in mechanical dishwashers comprise particles of an organic chlorine bleaching agent, e.g. Na or K mono-, di- or tri-chloroisocyanurate having a double coating comprising an inner layer predominantly of fatty acid melting above 105‹C. and an outer layer of a water-soluble salt (e.g. Na, K, Ca or NH 4 ) thereof, together with one or more detergent active materials.
Patent GB-497404-A (GB)
Title: Improvements in or relating to television receivers
Inventor: TOULON PIERRE MARIE GABRIEL
IPC: H04N3/12
Filed: 1937-06-18
Abstract: 497,404. Television receivers. TOULON, P. M. G. June 18, 1937, No. 17053. Convention date, July 9, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 20, 1937.] [Class 40 (iii)] Electro-optical elements in a screen 7 diffuse light to an extent depending on applied image signals. The colour of an indicator 8, such as bromethymol blue, enclosed in each element varies according to the current traversing it, and thus varies the light diffused by a fixed sheet 14 of white asbestos. The cell is returned to its normal condition, in the time of scanning one image, by osmotic diffusion of the surrounding electrolyte 13 through a collodion partition 9. To prolong the modification of the cell by the signals, the associated circuit has a time constant, for which the capacity is provided by the electrode of the element. The elements are scanned by distributers 21, 22, as described in Speci.fication 497,367, through rectifiers 17, 18, 19, which normally isolate the unit from the common transmitting circuit 30.
Patent GB-582298-A (GB)
Title: Improvements in or relating to window adjusting mechanism
IPC: E05F11/40
Filed: 1944-09-07
Abstract: 582,298. Window-operating apparatus. MOYDON, Ltd., STUPPLE, C. H., and COMPTON, A. J. Sept. 7, 1944, No. 17104. [Class 20 (iii)] In a sliding-window, such as a vehicle halfdrop window, the operating mechanism comprises a pair of screw-threaded flexible cables 2 (only one shown) connected at one end to the sliding pane 5, sliding in guides 1 mounted at each side of the window, and extending through these guides into a pair of rotatable threaded sleeves 12 operated simultaneously from the handle 19. In the form shown, this handle rotates a bevel wheel 18 intermeshing with hollow bevel pinions 16 mounted on the ends of the sleeves 12, each sleeve having a long internally threaded part 15. Each guide 1 is slotted at 7 so that an angle bracket 6 fixed to the cable may fit in a slot in a bracket 8 fixed to the channelled frame 9 of the pane 5. The pane may be detached from the cable by raising it above its normal uppermost position when the parts 6 and 8 may be disengaged, and another pane may be inserted by the reverse operation.
Patent GB-165724-A (GB)
Title: Improvements in retorts for distillation
IPC: C10B1/10
Filed: 1921-06-23
Abstract: 165,724. Deutsche Petroleum-Akt.- Ges., Kaeser, S., and Bauer, E. July 3, 1920, [Convention date]. Retorts.-A retort for the distillation of bituminous materials &c. is constructed with an openended rotary cylinder C enclosed in a stationary casing B and having within it a heating-tube A, the material being delivered from a feeding-device V, and on rotation of the cylinder being caused to be agitated and showered against the heating-tube by blades D or by shovels or buckets on the interior of the cylinder. Openings K are spaced along the cylinder and have hoods M to prevent the material from falling out through the openings at the lower part of their travel. Opposite to the openings K are gas outlets L which take off the distillation gas directly from each portion of the retort, annular division plates O being arranged to prevent the mixing of the gases before they leave the apparatus. Dust collects in the space between the cylinder and the casing, and is removed with the residues from the cylinder through a discharge opening W. Steam may be supplied to the interior of the cylinder A and two or more cylinders may be employed, the material passing through each in turn.
Patent GB-1507291-A (GB)
Title: Gold-gas refrigerator
IPC: H02K33/18
Filed: 1975-04-25
Abstract: 1507291 Cold gas refrigerators PHILIPS' GLOEILAMPENFABRIEKEN NV 25 April 1975 [29 April 1974] 17273/75 Heading F4H A cold gas refrigerator comprises within the same cylinder 1, a driven piston 2 and a free displacer 3, defining an expansion space 6 and a compression space 4. The refrigerator also includes a regenerator 7, a cooler 5 and a freezer 11. The piston is provided with a coil 17 wound around a non-magnetic sleeve 16, the coil being able to reciprocate in a gap 23 between a permanent magnet 24 and a soft-iron cylinder 26. The magnet 24 is surrounded by soft-iron blocks 25, 27. In operation, the contacts 21, 22 of the coil are connected to an electrical A.C. source, causing the assembly 2, 16, 17 to oscillate. A spring may be provided between piston 2 and cylinder 26.
Patent GB-182677-A (GB)
Title: Improvements in anti-slipping attachments for vehicle wheels
IPC: B60C27/08
Filed: 1921-06-24
Abstract: 182,677. Moss, C. June 24, 1921. Chain strainers.-In a tensioning-device for the retaining-chains of a non-skid device for wheeltyres, tension-springs are fitted at intervals in the chains, and the chain-tightening device comprises a lever 36, having a series of hooks 45 to receive a link 47 on one end of the chain, the lever being pivoted to an oppositely-hooked plate 35 which is connected by a link 39 to the other end of the chain.
Patent GB-1164543-A (GB)
Title: Slide Valve for Gas Blast Breakers
Inventor: MCKEOGH DANIEL H
IPC: H01H33/70
Filed: 1967-04-17
Abstract: 1,164,543. Valves. I-T-E CIRCUIT BREAKER CO. 17 April, 1967 [4 May, 1966], No. 17466/67. Heading F2V. [Also in Division H1] A blast valve 38 for a gas blast electric switch has a generally cylindrical housing 70 with a constricted central portion 80 in which slides a valve member 83 co-operating with two fixed ring seals 105, 108 at either end of its travel. The tubular valve member 83 is attached by radial spokes 123, 126 to a contact operating rod 50 so that it moves between one seal 105 108 and the other during each movement to open or close the contacts, a blast of gas passing from a high-pressure reservoir 36 through openings 93, 110, the centre of member 83 and passages 64, 65 to the interrupter heads of the switch during each movement.
Patent GB-536569-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/06
Filed: 1940-05-03
Abstract: 536,569. Tobacco pipes. DOWN, L. B. May 3, 1940, No. 17484/39. [Class 130] In a tobacco pipe having a replaceable liner 3 of briar or other wood within the bowl 1, a washer 5 of cork or the like is fitted between the bowl and the base of the liner to form an air-tight connection. As shown, the washer 5 is fitted in a groove 6 in the wall of the bowl. Aluminium or other tubes 10, 13 fitted in the stem and mouthpiece extend into moisture chambers 8, 9a. The bowl 1 may be of " Bakelite (Registered Trade Mark).
Patent GB-424320-A (GB)
Title: Improvements in and relating to systems of irradiation
IPC: A61L2/10
Filed: 1934-06-13
Abstract: <PICT:0424320/III/1> <PICT:0424320/III/2> Sterilizing-apparatus comprises a source of ultra-violet radiations, such as a mercuryvapour lamp, mounted within a housing provided with air inlets and outlets for ventilation of the lamp, and a heater in the outer to decompose ozone formed by the radiations.  Preferably, the ballast resistance which is necessary to stabilize the lamp is used as the heater.  In the arrangement shown in Fig. 1, a cylindrical housing 2 is mounted on a hollow base 1.  A mercury vapour lamp 4 is mounted vertically near one side of the housing 2, and an opening extends the whole depth of the housing on the opposite side.  A drum 7 of a diameter nearly equal to the distance between the lamp 4 and the far side of the housing 2 is mounted on studs 8 and 9 and is rotatable by a lever 10 (see Fig. 2).  The drum has a similar opening to the housing, serving for the insertion of articles, such as glasses, to be sterilized.  A trough-shaped reflector 11 is placed behind the lamp 4 and arranged so that the openings in the drum and housing cannot register save when the drum and reflector entirely enclose the lamp 4.  The studs 8 and 9 carry a fixed rack 12 at their inner ends, which in turn carries a removable rack 13 for the articles to be treated.  The ballast resistance 19 for the lamp is mounted on the top of the housing, and is enclosed by tube 22 on the underside of the domed cap 21, ventilating openings 23 being provided for the egress of air, while a large opening 24 is provided in the base 1 as an inlet.  The base 1 contains the auxiliary apparatus connected with the lamp 4.  The resistance 19 is formed of helically wound wire which is then helically wound on an open spider to permit free passage of air, and usually operates at a temperature of 400--500 DEG C., heating the air to a temperature of about 150 DEG  C.  Fig. 2 shows the drum 7 turned to the operative position.  If a more positive ventilation of the housing 2 is required, an exhaust fan may be mounted above the heater 19, with its air intake open to tube 22. In <PICT:0424320/III/3> <PICT:0424320/III/4> this arrangement, a slight vacuum is created in the housing 2, thus further preventing the escape of ozonized air.  Figs. 3 and 5 show the auxiliary apparatus connected with the lamp 4, the autotransformer 15, stabilizing inductance 16, shifter 17 and shifter resistance 18 being enclosed in the base 1.  In Fig. 3 the ballast resistance 19, preferably connected in the cathode lead of the lamp, is used as the heater.  In the circuit shown in Fig. 5, ballast resistances 30 are connected in each anode lead, and a separate heater resistance 19<1> is connected to tappings on the autotransformer 15.
Patent GB-562690-A (GB)
Title: Improvements in methods of and apparatus for soldering wires, strips and the like
IPC: B23K3/03
Filed: 1942-12-09
Abstract: 562,690. Soldering; uniting by fusion. RAKOS, A., and TECHNOTHERM, Ltd. Dec. 9, 1942, No. 17542. [Class 83 (iv)] In soldering or uniting by fusion wires, strips, or stranded conductors to each other or to tags or terminals, the parts of the wires &c. to be joined are introduced into a small chamber formed in a body of a material of low electrical and heat conductivity and high melting point, such as carbon, graphite or a metallic carbide, and are rapidly heated therein by passing an electric current through the body to fuse the parts or melt additional metal when such is introduced with the wires. The volume of the chamber is preferably the same as that occupied by the parts to be joined. The chamber may consist of a groove 34 across the end of a carbon or like electrode 22, which co-operates with a similarly grooved or flat end of a carbon &c. electrode 20. The electrodes are connected to the opposite terminals of an electric circuit. The electrode 20 is secured in a clamp 19 on a rod 10 which is movable in a hollow arm 3 projecting from a column 2 provided with a base 1, by a pedal 13 hooked to a rod 4 connected by an arm 9 to the rod 10 and raised by a spring 5. The electrode 22 is secured in a clamp 24 carried by a slide which may be adjustable in the direction of the column and secured in position by a screw at each side so that a lateral adjustment may also be provided. To the clamps 24 are secured a U-shaped strip 29, which is secured to and insulated from a plate 30 having a slot through which the electrode 22 projects and having an ear 38 in which is pivoted at 31 a bifurcated member 32 pressed by a spring 33 so as to clamp the parts to be joined at each side of the electrodes. The rod 10 carries a rotatably adjustable link 40 provided with adjustable rods 39 for raising the member 32 when the pedal is depressed so as to permit the insertion of the parts and the pedal is then released to clamp the parts in position. The link 40 is then moved aside and the pedal again depressed to bring down the electrode 20 into contact with the electrode 22 and complete the electric circuit to effect the soldering or welding. In another form the electrodes 56, 57 are carried in the short arms 52, 54 of a tongs which are pressed open by a spring 581, a spring closed bifurcated clamp 63 being carried by one limb and being opened when required by a trigger member 68. A further form resembling a small furnace may consist of one or more small chambers in a block of carbon through which an electric current is passed. The soldering material may consist of copper, silver, or phosphor bronze and may be in the form of a stick or of a wire twisted together with the wires to be joined or applied as a sleeve on the parts or as part of a tag to be joined to a conductor. Insulated wires may be joined without stripping the insulation which is burned off during the joining operation, and a flux is dispensed with, the heating of the carbon electrodes providing a reducing atmosphere.
Patent GB-423652-A (GB)
Title: Improvements in or relating to devices for adjusting the flats of carding cylinders
IPC: F16C33/40
Filed: 1934-06-15
Abstract: 423,652. Carding-engines. AKT.-GES. J. J. RIETER & CIE, Klosterstrasse, Winterthur, Switzerland. June 15, 1934, No. 17790. Convention date, June 17, 1933. [Class 120 (i)] A device for adjusting carding-engine flats, wherein the flats are carried on bends, the supporting points of which can be adjusted singly, or else jointly by means of a control disc, is characterized by the supporting rods engaging with one of their ends the card bend, their other ends being mounted with slight lateral play in the control disc in the direction of chords thereof. The rods are preferably mounted on the control disc in ball-shaped bearings against which abut nuts on a screwed portion of the rod for individual adjustment. Adjustment of the control disc is effected by screw means. The bends 1 are supported by rods 2 which are mounted by ball-shaped bearings in the control disc 3. The rods 2 are adjusted individually by the nuts on either side of the bearing, or they are adjusted conjointly by rotating the disc 3 by adjusting the screws 7 carried in a bracket 5 attached to the control disc.
Patent GB-561286-A (GB)
Title: Improvements in or relating to self-locking or "stiff" nuts
IPC: B23G9/00
Filed: 1942-12-15
Abstract: 561,286. Lock nuts. DUNDAS, Ltd., R. K., KING, R. D., and WOOD, N. F. Dec. 15, 1942, Nos. 17829/42 and 6609/43. [Class 89 (i)] [Also in Group XXII] Lock nuts are formed by cutting slots 2, Fig. 1, across the tapped bore from opposite sides and then closing the slots at one side by pressure in the axial direction. Only one slot or more than two may be employed. When one slot is used the deformation may take place laterally by pressure in the direction of the screw, Fig. 10. Both types of deformation may be employed together. The end of the nut is preferably turned to circular form with a slight taper 1a and one slot is preferably at the base of the circular portion and the other half way along its length. The nut may be of non- metallic material. A machine for slotting the nuts employs a conveyor 3, Fig. 5, to which are attached holders 4 having hexagonal sockets to receive the nuts which are carried past slitting cutters 5 and under a roll 6 that deforms the slitted nut.