baber/WOPTO huggingface dataset:
Patent GB-435026-A (GB)
Title: Improvements in or relating to devices for delivering paper to printing presses and other machines
IPC: B65H19/18
Filed: 1933-12-08
Abstract: 435,026. Feeding webs. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.- (Kohler, F. W.; 410, North Michigan Avenue, Chicago, U.S.A.) Dec. 8, 1933, No. 34631. [Class 100 (i)] A web feeding and renewing apparatus for printing and other machines comprises a roll support for a number of rolls, a continuously driven belt for engaging the surface of the active roll to control its rotation and for engaging the surface of a new roll to bring it up to the speed or approximately the speed of the web, and a pressure device separate from the belt to press the expiring web into contact with an adhesive on the new roll. The belts may be driven normally at slightly less than web speed to tension the web, and at web speed during the web-renewing operation. A series of belts 9, Fig. 1, each pass round guide rollers 10, 11, 13 and 14 and a weighted tension roller 12, and are driven normally by the rollers 11 at a speed slightly less than web speed to tension the web. During the web-renewing operation the belts are driven at a higher speed by the rollers 10 which are of slightly larger diameter than the rollers 11. The rollers are driven from a shaft 30, Figs. 1 and 6, through bevel gears 31, 32 fast thereon meshing with bevel gears 33, 37 loose on the shafts of the rollers and adapted to be alternatively clutched thereto by clutches 36, 40 actuated by a two-armed lever 41 which is normally held by a spring 45 so that the rollers 11 are operative to drive. An electromagnet 43 operated by the closing of a switch 48 is provided to actuate the lever to change the drive to the rollers 10. The pressure device for pressing the old web and new roll together comprises a roller 21, the bearings 33 of which are mounted in guides 24 between opposing springs 26, 25, the tension of which can be adjusted by screws 27. When the active roll 2, which is normally in the position of the roll 3, is nearly exhausted, the roll support 1 is turned to bring the new roll into contact with the lower portions of the belts, which are then driven at the higher speed. When the roll is speeded up, the support is further turned into the position shown to bring the new roll, previously provided with adhesive 20, into contact with the old web, pressing it against the roller 21 to effect the join. The old web is then severed and the drive of the belts again transferred to the rollers 11.
Patent GB-405439-A (GB)
Title: Improvements in or relating to valves for controlling the flow of fluids
IPC: F16K1/24
Filed: 1932-12-08
Abstract: 405,439. Pivoted disc valves. DICK, J. O., 60, Battenhall Road, and MURRAY, D. C., 16, Bozward Street, both in Worcester. Dec. 8, 1932, No. 34784. [Class 135.] Relates to disc valves of the kind in which in the opening movement the disc first moves obliquely away from but remains parallel with its seating and then rotates bodily to a position in line with the flow substantially at right angles to the seating. The valve disc d is pivotally mounted away from its centre of gravity on coaxial pins mounted on crank arms depending from the axis f of a transverse rotatable shaft, so that the disc d moves to and from the position shown, in the initial opening and final closing movements, and arcuate guides n are provided at each side engaging pins or rollers e on the opposite edges of the valve disc to ensure the turning of the valve disc into and from its position in line with the fluid flow. The valve can be operated by a lever disposed externally on the transverse shaft or it may be opened and closed by the action of fluid pressure alone. After the initial opening the back of the valve disc contacts with projections q from the crank arms so that the disc rotates bodily with the shaft between this and the fully open position.
Patent GB-1500155-A (GB)
Title: Method and apparatus for producing concrete construction elements and concrete construction elements produced by the said method and/or by using the said apparatus
IPC: E04B5/32
Filed: 1975-08-22
Abstract: 1500155 Permanent shuttering blocks for concrete floors BALLAST NEDAM GROEP NV 22 Aug 1975 [23 Aug 1974] 34978/75 Heading E1W Hollow shuttering blocks 5 for concrete floors, &c. are open at the bottom and closed at the top by a snap-in closure member 12 which fits in to an inspection hole. This hole allows the concrete immediately under the block to be checked and levelled or added to if necessary. The blocks may sit on spacers 15 fixed thereto which also support lower reinforcement 10, or on spacers (23), Fig. 5 (not shown), which do not support the reinforcement.
Patent GB-447986-A (GB)
Title: Improvements in slides for brace bands, and other bands, webbing and the like
IPC: A44B11/10
Filed: 1934-12-06
Abstract: 447,986. Buckles &c. WALKER, Ltd., T., and WALKER, G. T., Birmingham Buckle Works, St. Paul's Square, and LAMBOURNES (BIRMINGHAM), Ltd., and LAMBOURNE, R. G. H., 170, Great Hampton Row, both in Birmingham. Dec. 6, 1934, No. 35007. [Class 43] An adjusting slide for brace bands, webbing, &c., comprises two relatively movable parallel frames 1, 7 each having a single slot 2 or 8 to receive the main part 12 of the band, the frame 7 being connected to the return end 12a of the band so that pull on the latter will cause the slot of each frame to be overlapped by the edge of the other frame and the band gripped thereby. The frame 7 is formed with a pressed-out loop portion 13 for attachment to the return end 12a and flanges 14 for engaging the sides of the frame 1, detachment of the frames being prevented by projections 15 on the member 1 engaging a cross-bar 10 on the other.
Patent GB-407479-A (GB)
Title: Improvements in artificial spinning bait
IPC: A01K85/12
Filed: 1932-12-10
Abstract: 407,479. Fishing. ALLCOCK & CO., Ltd., S., and COTON, W., Redditch, Worcestershire. Dec. 10, 1932, No. 35035. [Class 48.] A spinning bait comprises a body 1 which is pierced and raised at 6 to form bearings for a rod 3. In a modification the body is bent-up at 9, 10 to form the bearings. The spinner is corrugated axially.
Patent GB-809857-A (GB)
Title: Improvements in means for the positive feeding of stationery through typewriting or imprinting machines
IPC: B41J11/36
Filed: 1955-12-08
Abstract: 809,857. Typewriters &c. WILKES, J. Dec. 10, 1956 [Dec. 8, 1955], No. 35229/55. Class 100(4) A positive feed mechanism for stationery to give short and longer feed steps, employs pin wheels 4, Fig. 1, which can be attached to an electrically operated typewriter is driven from the platen roller by gears 15, 17. It has a rotatable member 6, Fig. 3, co-acting with an electric switch 9, for stopping the drive after the longer throw, driven by gear wheels 10, 12, 11, one of which, 10, is mounted on a shaft 3, Fig. 1, and coupled thereto by a clutch 19, 20, so that stationery can be adjusted on the positive feed shaft 3 in relation to the switch operating member 6. Gear wheel 11, Fig. 3, may be changed to alter the relative speeds of rotation of the platen roller and switch operating disc 6. Gear wheel 12 is mounted on arm 13, pivoted at 10, so that adjustments may be made to accommodate wheels 11 of various sizes.
Patent GB-1463096-A (GB)
Title: Apparatus for positioning a working implement in a borehole
IPC: E21B47/022
Filed: 1974-08-09
Abstract: 1463096 Automatic control of position V G CHEPELEV N N GRINCHENKO J M GOLDSHTEIN D L SHVARTS N P FETISENKO and V N GRINCHENKO 9 Aug 1974 35232/74 Heading G3R [Also in Division E1] The rotational position of an earth boring implement 10 with respect to the vertical plane containing the borehole axis is controlled automatically in response to differences between measured and desired values for borehole azimuth and inclination. These quantities are measured by in-hole electronic devices 1, 2 (not described) and comparison is made by magnetic amplifiers 3, 4 (also Fig. 2, not shown) or in a bridge circuit. The arrangement is such that 3 and 4 produce sinusoidal voltages, one of which is phase displaced 90 degrees from the other, whose magnitude represents the error, and these are applied to a resolver 8 which operates a motor driven potentiometer Fig. 3, (not shown),or which comprises a pair of transformers with phase sensitive rectifiers, to provide a desired rotary position signal. This is compared in a bridge circuit 11 with a signal representative of actual rotational position (measured by a rotary transformer in the boring implement) and any difference drives a position correcting motor 13.
Patent GB-942767-A (GB)
Title: Automatic gain control means for pulsed signal receivers
IPC: G01S7/34
Filed: 1960-10-14
Abstract: 942,767. Radio receiving circuits; pulse radar. SPERRY RAND CORPORATION. Oct. 14, 1960 [Oct. 21, 1959], No. 35247/60. Headings H3Q and H4D. The receiver in a secondary pulse radar system is provided with automatic gain control in which the control is dependent upon the number of received pulses in excess of a predetermined number, this, in a system with a continuously scanning directional aerial, being dependent upon the amplitude of the received signals. Positive-going detected pulses from the receiver circuits 4 are clipped to a uniform height by pulse former 5 and then passed to indicator circuit 9. The clipped pulses are also passed via transformer 6 to an automatic gain control circuit comprising resistor 11 and diode 12 which clips the negative portion of the pulses. The pulses are then applied to a step counter comprising diodes 15, 16 and capacitors 13, 16 to produce across condenser 16 a stepped negative-going waveform (Fig. 3A, not shown) ; the condenser discharges through resistor 17 when the pulses cease. For the period depending on the number of pulses, during which the voltage across condenser 16 overcomes a positive bias from potentiometer 18 the valve 19 of a cross-coupled pair 19, 20 is held non- conductive. The output from the anode circuit of valve 20 comprises negative-going rectangular pulses (Fig. 3B, not shown), whose width depends upon the number of pulses in the received signal, and these are passed by diode 23 to an integrating circuit 25, 32. The integrated voltage, which also depends on the number of received pulses is fed to the gaincontrol line via a cathode follower 26 and potentiometer 27 which sets the D.C. level. Diode 28 prevents a positive bias being applied to the gain-control line.
Patent GB-336138-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H01J21/18
Filed: 1929-11-19
Abstract: 336,138. British Thomson-Houston Co., Ltd., (Assignees of McArthur, E. D.). Nov. 20, 1928, [Convention date]. Vacuum tubes. - An oscillation generator of short wave-length comprises a thermionic device having a cathode 3 and a pair of anodes 2, symmetrically arranged on opposite sides of the cathode, the anodes being connected by an oscillatory circuit 5, 6 an intermediate portion of which is connected through a source of potential 8 to the cathode, means comprising a coil 9 being provided for maintaining in the space between the cathode and anodes, a magnetic field parallel to the cathode. In a modification, Fig. 3 (not shown), a plurality of pairs of anodes are arranged round the cathode.
Patent GB-730768-A (GB)
Title: Improvements in or relating to vacuum cleaner tables
IPC: A47L7/00
Filed: 1953-12-19
Abstract: 730,768. Suction cleaners. HALLSTROM, O. H. Dec. 19, 1953, No. 35390/53. Class 8 (1). A vacuum cleaner table comprises a suction chamber 8 having a slot 10 through which dirt is drawn, the effective length of which is adjustable. The chamber 8 is supported on a frame 1 to which is detachably secured a cleaner 5 which is connected to the chamber 8 by a hose 6. The discharge from the cleaner may be supplied with disinfectant and blown through the article to be cleaned. Two plungers 19 are slidably fitted in the suction chamber 8 and by means of knobs 11 secured thereto are moved to vary the effective length of the slot 10. In a modification a rotatable valve is fitted in the chamber 8 and is used to blank off varying lengths of the slot. Alternatively, a rotary valve is fitted outside the chamber and has a plurality of slots of varying lengths which are brought into register with a full length slot in the chamber. In a further modification, flexible strips are slidably mounted in grooves on either side of the slot whereby varying lengths of the slot may be blanked off. In a still further modification, two slotted chambers are slidably mounted adjacent each other and by overlapping, the effective length of the slots may be varied. Pegs or bristles may be fitted to the frame adjacent the slot to roughen the surface of the article before it reaches the slot. The Specification also states that the article may be vibrated and may be fitted with electrostatic dust removal means. The suction chamber may be mounted above the table or an additional chamber may be provided to clean the top surface of the article simultaneously.
Patent GB-394028-A (GB)
Title: Improvements in electric welding apparatus
IPC: B23K9/073
Filed: 1931-12-22
Abstract: 394,028. Arc-welding. DEGLON, C. R., 8, Thirlmere Avenue, Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Dec. 22, 1931, No. 35475. [Class 39 (iii).] In an arc-welding apparatus the positions of the electrodes are adjusted and controlled by a dynamo - electric machine 1 having a field system 3 mechanically rotatable relatively to the armature system 2, one system being driven mechanically and the other driving the electrode feeding-mechanism 4, 5, the electrical conditions of the systems being variable with respect to each other. The field system 3 may be driven by a variable speed motor 9 provided with a controller 10. The field coils 3 are placed in parallel with a resistance 11 in the arc circuit and a field winding 12 of the motor 9 may also be placed in this circuit so that the feeding mechanism can be controlled according to the arc current. The positions of the armature 2 and field 3 may be interchanged and their relative electrical conditions may be controlled by the arc voltage or other similar variable quantity instead of the arc current. When used in atomic hydrogen welding apparatus the machine 1 may be energized from the arc circuit through rectifiers.
Patent GB-510007-A (GB)
Title: Method of and means for forming unbreakable lenses
IPC: B29D11/00
Filed: 1937-12-22
Abstract: 510,007. Moulding lenses ; synthetic resin articles; electric heating. LLOYD, E. G. Dec. 22, 1937, No. 35553. Convention date, Dec. 28, 1936. [Class 87 (ii)] [Also in Groups IV and XI] Lenses are moulded from transparent organic thermoplastic material by heating and softening a blank L and pressing between dies 12, 13 which leave the edges of the blank free to expand, and cooling. The die surfaces may be of glass or of a material such as that known under the Registered Trade Mark "Stellite" having a hardness of 68 or over on the Rockwell C Scale. The thermoplastic material may be a synthetic resin such as a polymerised derivative of acrylic acid, e.g., that known under the registered Trade Mark "Plexiglas." The heat and pressure may be applied simultaneously; the increase in temperature may be greater at first, as until 300‹F., when the pressure is increased, until at 350‹F., the maximum pressure, as of 1,000 lbs. per sq. in., is reached. The pressure is maintained or increased further while the lens is cooled. After cooling the lens may be quickly chilled in cold inert gas or in evaporating solid carbon dioxide. The dies 12, 13 are mounted in recesses 20 in die holders 18, 19. The movement of the die holders towards each other is limited by spacing members and washers on dowel pins. The washers determine the thickness of the finished lens. The dies are heated by electric coils 39 in recesses 34, current being fed to terminals 43 mounted between insulated plates 35, 36. The die holders are secured to plates 46 which are connected by screws 47 and upon which pressure is exerted to force the dies together. The dies may be contoured to produce a bi-focal lens.
Patent GB-360695-A (GB)
Title: Improvements in and relating to sausage mixing and stuffing attachment for meat cutting or mincing machines
IPC: B02C18/30
Filed: 1930-11-26
Abstract: 360,695. Mixing-appliances. WILSON, C. C., 30, Valley Street, Lewistown, Pennsylvania, U.S.A. Nov. 26, 1930, No. 35581. [Class 86.] An attachment for a meat cutting or mincing machine for mixing ingredients for sausages &c. and filling them into casings comprises a horn or nozzle adapted to be secured to the discharge end of the machine and to have the sausage casings applied thereto, a number of fixed mixing-blades in the horn, and a number of movable mixing-blades adapted to be fastened to the feed screw of the machine. The horn 14 is enlarged to form a mixing chamber 15, part of which is cylindrical and part spherical. A flange 16 on the horn is removably gripped between the end perforated plate 4 of the mincing machine and the screwed ring 13 which holds it in place. The fixed blades 17 are secured in the spherical part of the chamber 15 and the movable blades 18 are arranged in the cylindrical portion and rotate with the feed screw 3. The blades 18 radiate from a hub 19 provided with a stud 20 screwed into a socket 21 in a stud 7 which projects from the end of the feed screw 3 and on which the perforated plate 4 and the coacting cutters 5 are mounted. When the attachment is removed from the machine, the socket 21 is closed by a screw.
Patent GB-1314302-A (GB)
Title: Rotary disc dehydration presses
IPC: B30B9/20
Filed: 1971-07-29
Abstract: 1314302 Rotary disc press R YORITOMI 29 July 1971 [29 July 1970] 35661/71 Heading B1D In a rotary filter press wherein liquid is squeezed out of material which passes around an annular groove of V-shaped section and circumferentially varying width, between two rotating perforate frusto-conical discs 8, 9 and inner and outer walls 2, 1, the discs rotate about shafts 5, 6 which are pivoted together at pin 7 and whose outer ends are engaged by a first and second pairs of levers 27, 28 and 40, 41. The free end of each lever 27, 28 is mounted on a shaft 33 Fig. 1, and by means of adjusting nuts located thereon the compression of the filter discs can be varied. The free ends of the levers 40, 41 are pivoted together about a pin 42, Fig. 5 arranged above the axis of the pin 7. The filter discs are rotated by means of chains and sprockets 21, 18, 19. The levers 40, 41 and the pin 42 may be located below instead of above the press.
Patent GB-344412-A (GB)
Title: Process for filtering suspended sediments
IPC: C04B7/40
Filed: 1929-11-21
Abstract: In the manufacture of Portland or like cements, filtration of the raw slurry is facilitated by addition of a water-soluble compound of calcium, magnesium, barium, aluminium, iron, potassium, sodium, or ammonium.  Calcium sulphate may be used, and filtration be effected under pressure and using a hot slurry.  Reference has been directed by the Comptroller to Specification 101,484, [Class 22, Cements &c.].
Patent GB-396273-A (GB)
Title: Improvements in methods of and apparatus for interleaving sheets of paper
IPC: B65H45/24
Filed: 1932-12-16
Abstract: 396,273. Interfolding paper sheets. SOC. ANON. DES ANCIENS ETABLISSEMENTS BRAUNSTEIN FR’RES, 83, Boulevard Exelmans, Paris. Dec. 16, 1932, No. 35743. Convention date, Dec. 16, 1931. [Class 100 (i).] In a machine for interfolding sheets of paper, e.g. cigarette papers, comprising pairs of toothed inserting-wheels 1, 2, Fig. 1, with suction means for holding the folded sheets 27 between the teeth, the faces of the teeth are provided with grooves 10, Fig. 2, communicating with suction conduits 11 so that the sheets are opened and held against the whole surface of the teeth. The radial conduits 11 communicate with axial conduits 16. Suction is applied by a device 17 at the end of each wheel and including a suction passage 20 and ports 18, 19 communicating with the conduits 16 adjacent to the feed position and the interfolding position respectively, no suction being applied between these positions. Spring strips 23, 24 exert slight pressure on the sheets 27 just after they have been inserted into the wheels so as to cause the edges to separate slightly before the suctiondevices operate. The sheets leaving the wheels 1, 2 drop on to a gradually-descending support 28 and the interfolding is completed by two resilient strips 29 oscillated by cams 31 so as to strike against the interengaging sheets.
Patent GB-1199106-A (GB)
Title: Well Packer Assembly
Inventor: CROW MORGAN LEVON
IPC: E21B33/1295
Filed: 1968-07-26
Abstract: 1,199,106. Wells. DRESSER INDUSTRIES Inc. 26 July, 1968 [26 July, 1967], No. 35813/ 68. Heading E1F. A well packer comprises upper and lower slips 44, 152 surrounding a mandrel 16 on a tubing string 14, and slip expanders: 52, 144 movable in response to fluid pressure to set the slips, such that upward movement only of the mandrel will release the slips for retrieval of the packer. Fig. 4 shows the packer with the slips set, expanders 52 having moved over an enlargement 36 on the mandrel. Initially, telescoping members 64, 100, 124 are contracted and are held so by locking dogs 114 held in groove 25 by flange 120, and by shear pins such as 142. Members 100, 124 form a piston and cylinder communicating by port 23 with the mandrel interior. When the packer is to be set, ball 182 is dropped to seal the passage through the mandrel, and the pressure.in the mandrel is raised. The force on member 124 shears pins 142 and the member is moved to set slips 152 and free dogs 114. Member 100 is now free to: rise, .to compress packing rings 102 (one shown) and raise member 64 to shear further pins and set slips 44. Members 64, 100, 124 are now partially extended. An element 70 surrounding the mandrel and axially fixed so .as to leave an unsealed leakage path 91 defines a cylinder with member 64, in which is a free piston 74. Ports 76, 106 communicate the pressures above and below the rings 102 to. the two sides of the free piston, whereby if either pressure is higher than the other, the setting force on the slips is increased. To retrieve the packer, the mandrel is raised, shearing pins 168. The enlargement 30 moves from under the expanders 52, releasing slips 44. Element 70 abuts piston 74, so that members 64, 100, 142 extend fully, decompressing rings 102 and releasing slips 152. The lower part of the mandrel (not shown) has teeth which engage ratchet members 174 to hold members 64, 100, 142 and the slip cage 154 fully extended so that the expanders are held out of contact with the slips during retrieval.
Patent GB-832937-A (GB)
Title: A new or improved heat exchanger
IPC: F24H3/08
Filed: 1957-11-18
Abstract: 832,937. Air heating stoves. RAWSON, L. E. J. Aug. 1, 1958 [Nov. 18, 1957], No. 35822/57. Class 64(1) Air is drawn by a fan (not shown) through inlets at the sides (as shown) and/or in the bottom of a rectangular casing 1 and is heated in flowing over a combustion chamber 4 preferably fired by an oil burner, and flue tubes 6 disposed within the casing, the combustion chamber being of ovoid cross-section and increasing in cross-sectional area from front to back of the casing, and the flue tubes 6 extending from the combustion chamber to an expansion chamber 7 leading to an exhaust duct 8. The air is directed from the heater to grilles or ducts in a building for heating purposes. The apparatus may incorporate a thermostat in association with the burner to prevent overheating if the fan should fail and a thermal control ensures that the fan runs only when the heat exchanger is sufficiently hot and continues to run when the burner is shut down to fully utilize the heat generated.