baber/WOPTO huggingface dataset:
Patent GB-180538-A (GB)
Abstract: 180,538. Shrimpton & Sons, Ltd., A., and Shrimpton, H. N. May 2, 1921. Crochet-hooks.-A crochet-hook a is formed with a thin flat shank a<5> pivoted, at some distance from its end, in a sheath b made of thin flat material. The hook is perforated at a<3>, a<4> and the sheath has corresponding inwardly extending circular protuberances b2, Fig. 4, which, engaging with either hole, serve to hold the crochet-hook in position. Slots or grooves in the shank of the hook may be used in place of holes a<3>, a<4> and the hole a<3>, or the corresponding slot, permit the use of the device as a bodkin when it is closed. Grooves also may take the place of the holes a<3>, a<4> and, in that case, a special hole is provided for bodkin purposes.
Patent GB-920715-A (GB)
Title: Improvements in blast furnace practice
IPC: C21B5/00
Filed: 1960-05-23
Abstract: 920,715. Reducing iron ores. SOC. NEX. May 23, 1960 [May 27, 1959], No. 18057/60. Class 72. [Also in Group XII] A method of producing pig iron in a blast furnace comprises blowing into a charge comprising oxidic iron ore, coke, and a flux, a blast, produced outside the blast furnace, formed by burning a carbonaceous fuel with a stoichiometric amount of oxygen so that the blast is introduced into the furnace at a temperature above the melting point of the metal. The fuel may be coal, natural gas, or a hydrocarbon fuel and the combustant may be oxygen or oxygenenriched air, the resulting blast being at a temperature of 1700-2100‹ C. The blast may be produced in an apparatus as shown comprising an inlet 10 for the fuel, and an inlet 16 for the oxygen, the latter passing through tubes 12, 13 surrounding the combustion chamber 11 and the resulting gas passing through an outlet 5 into the blast furnace.
Patent GB-869732-A (GB)
Title: Motorized drive pulley for an endless belt type conveyor
IPC: B65G23/08
Filed: 1959-05-27
Abstract: 869,732. Endless belt conveyers. CLEVELAND TRENCHER CO. May 27, 1959 [July 30, 1958], No. 18069/59. Class 78 (1). [Also in Group XIII] A drive roller for an endless belt conveyer comprises a sheave 26, provided with a groove 28 to engage guiding lugs on the underside of the conveyer belt, secured between cylindrical shells 30, 32, the roller being driven by means of an hydraulic motor 24 contained within the shell 32. The motor drives a ring gear 50, secured to the shell 32, through a sun gear 44, keyed to the drive shaft 46, and planet gears 48, 49 on shafts 48a; 49a respectively mounted between a member 52 supported on the sheave 26 through a bearing 67 and a plate 54 secured to the motor casing, the member 52 and plate 54 being secured together by bolts 58. The roller is supported at one end by a shaft 40; secured to the sheave 26, and at the other end by bearings 74a on a housing 70 secured to the motor and enclosing feed lines 24a, 24b. The shaft 40 is hollow for either venting air from or supplying lubricant to the interior of the roller
Patent GB-504235-A (GB)
Title: Improvements in yarn warping and beaming machines
IPC: D02H3/00
Filed: 1938-06-17
Abstract: 504,235. Yarn warping and beaming machines; gearing. REINERS, W., (trading as SCHLAFHORST & CO., W.). June 17, 1938, No. 18079. Convention date, June 18, 1937. [Class 142 (iv)] [Also in Group XXIV] The beam 2, Figs. 2 and 4, is driven by toothed gearing 10, 11, 13, 14 and coned friction wheels 15, 16 from an electromotor 17, the wheels 14, 15 being carried by a pivoted arm 18. When an electromagnet 57a is energized either by a manually controlled switch or automatically under feeler action, a catch, including a rod 57 pivoted to a notched rod 56, is released and a weighted pedal lever 52, 53 rocks, so that a spring-controlled pawl 61 engaging a rack 60 on the arm 18 rocks this and swings the wheel 15 out of contact with the cone 16. Simultaneously a plunger rod 50 moves upwards in a cylinder 30a fed with oil from a cylinder 31a, oil being expelled through pipes to actuate brakes 40, 41, 42 for various parts of the machine so as quickly to stop these. The brake 40 acts on the roller 3 over which the yarn passes, the brake 41 acts on a cylinder 7 which is suspended on arms 6 and presses on the beam, whilst the brake 42 acts on the wheel 15. As the beam fills, the arms 6 rock and a toothed quadrant 28 on their shaft actuates gearing whereby the cone 16 is caused to recede from the wheel 15, so as to decrease the speed at which this is driven and keep the surface speed of the warped yarn constant. The wheel 14 tends to roll on the wheel 13, the wheel 15 pressing against the cone 16 with a pressure which increases with the load. The variation of speed may be effected by mechanism driven from the roller 3. As shown in Fig. 5, the piston 50 may be carried by a lever 64 operated by a bell crank lever 63, which clears the lever 64 so as to release the piston before the end of the upward movement of the lever arm 52. The application of the , brakes is thus discontinued although the driving mechanism is disengaged. A modification is described wherein the brakes are operated by electromagnets 70, 71, 72, Fig. 7, the driving gear being disengaged by a tooth 75 on the core of a solenoid 73, which is thrust against a rack 74 on the arm 18 and slightly rotates this. An electromagnet 76 may be used to control a small bell crank by means of which the tooth 75 can be retained in engagement with the rack when the solenoid 73 has been de-energixed. The application of the invention to a machine wherein the beam is carried by rock arms is described, band brakes being used.
Patent GB-835462-A (GB)
Title: Improvements in electrical signal transmission systems
Inventor: FEARNSIDE KENNETH
IPC: H03H11/04
Filed: 1957-06-06
Abstract: 835,462. Electric analogue computing systems. SMITH & SONS (ENGLAND) Ltd., S. July 2, 1958 [June 6, 1957], No. 18099/57. Class 37. [Also in Group XL (c)] An electric transmission system comprises a non-linear element having an attenuation which increases monotonically with the amplitude of the input signal, and a linear filter means connected to provide a device having a first transfer function in series with the input and a further device having a second transfer function equal to a multiple of the first function minus unity connected to apply negative feedback from the output to the input. As shown in Fig. 2 the input to a transmission system is fed through an input network comprising a resistor 7 in parallel with a capacitor 11 to a cathode follower 8 whose output is connected to a non-linear filter 4, of the type described in Specification 826,664. The output of filter 4 is connected both to a cathode follower 9 and through a feedback network comprising a resistor 10 to the input of the cathode follower 8. Other forms of input and feedback networks are given in Figs. 3 and 4 (not shown). Formulae are given for the relationships between the two transfer functions for the networks described.
Patent GB-1254631-A (GB)
Title: Dryer and heater
IPC: F26B13/10
Filed: 1969-04-09
Abstract: 1,254,631. Drying continuous material. GOODYEAR TIRE & RUBBER CO. 9 April, 1969 [15 May, 1968; 16 May, 1968], No. No. 18099/69. Heading F4G. [Also in Division G3] Continuous material, such as tyre cord, is dried by passing it vertically past exposed flame gas fired infra-red heaters and simultaneously directing gas streams on to the material. Webbing 12, Fig. 1, after coating with a latex and resorcinol-formaldehyde-based adhesive 19 in a tank 20 is dried in a tower 14 comprising eight pairs of opposed dryer units 16. Each dryer comprises an infra-red radiant heater 28, 31, Fig. 6, and means for passing a stream of air 42 across the surface of the web 12 to remove evolved water vapour. The heaters are prefer. ably of the type in which a burning gas-air mixture heats a plate to incandescence. The stream of air is produced from a nozzle 50 elongated across the web, deflected against the web by a baffle 54 and exhausted through a duct 58. A mesh screen 64 prevents the stream adversely affecting the burner. Overlapping plates 90 prevent lateral loss of radiation and air from stream 42. A thermocouple 101, sensing the temperature of the web, is used to vary manually or automatically any combination of the following: (a) Fabric speed. (b) The fuel supply or gas-air mixer motor of the burner. (c) The air flow by means of a damper in duct 48 or the speed of the blower fan. Damage to the web by residual infra-red radiation when the web is stopped and the burners shut down is prevented by retracting the burner to the dotted position using an hydraulic and mechanical linkage, and opening the damper to maximize the air flow through nozzle 50.
Patent GB-564386-A (GB)
Title: An instrument for the verification of internal and external diameters
IPC: G01B5/08
Filed: 1942-12-21
Abstract: 564,386. Gauging apparatus. COOKE, TROUGHTON, & SIMMS, Ltd., and TAYLOR, E. W. Dec. 21, 1942, No. 18158. [Class 106 (ii)] An instrument for verifying internal and external diameters, by comparison with reference or master slip gauges, includes two spaced gauge-contacting arms and a levelling vial, one of the said arms being connected to the vial by lever mechanism for converting small relative movements between said arms, into a highly magnified but proportional movement of the air space of the levelling vial. The instrument shown in Figs. 1 and 2 comprises a base 1 with levelling screws 8 and a circular bubble 11. The base is bored to receive a spindle 2 supporting a composite table comprising a cross-piece 13 with rollers 15, a lower table 16 mounted on the rollers, an intermediate table 22 mounted to turn on the table 16, slides 29 secured to the table 22 which support a member 25 forming part of a ball race 31 for an upper table 30 on which the work is supported. The parts are held together by screws 32, 33 and a flange 23. The spindle 2 is raised and lowered by a rack and pinion. A bracket 18 attached to the lower table 16 is forked to embrace an eccentric pin 20 operated by a knurled knob 21 to rock the table 16 about the axis of the rollers 15. Rotation of the intermediate table 22 is effected by a handle 24 and a knurled knob 28 through a rack 26 and pinion 27 moves the upper table 30 in a directon parallel to the axes of the rollers 15. The vertical position of the table is indicated by a scale 34 and index 35. A bracket 36 with an overhanging flange 37 supports the contacting arms 57, 68 and the indicating mechanism. To the flange 37 is attached hardened steel ball tracks 38, 40 supporting a slide 41 for horizontal movement. The slide 41 is controlled by a spring 46 and has attached thereto a bracket 42, Figs. 1 and 4, and a dovetail piece 47. The bracket 42 carries a micrometer screw 43 and reading dials 44, and the dovetail piece 47 carries a plate 48 with an index 52, Fig. 5, co-operating with a scale 53. The contact arm 57 is attached to the plate 48 by a finger screw 56 and may be moved to the left to enable the work to be inserted by a finger knob 94 extending from the bracket 42 on the slide 41. A dovetail piece 60 on the fixed flange 37 carries a plate 61 with an index 64 co-operating with a scale 65 and has. attached thereto the second contacting arm 68. Between the end of the spindle 43 of the micrometer and the end of a needle on a spring-controlled plunger 77 housed in the slide 41 is a hardened steel plate 75 arranged in a pivoted bracket 74 on which is supported a box 81 with a levelling vial 82. Above the vial is window 91 and a hinged mirror 92 for viewing the -air bubble. When not in use the box 81 may be held by a safety screw engaging a hole 90 in the box.
Patent GB-473373-A (GB)
Title: Improvements in or relating to thermally operated fire-alarm apparatus
IPC: G08B29/14
Filed: 1936-06-30
Abstract: 473,373. Thermal switches ; fire - alarm systems. COMPAGNIE DES TELEPHONES THOMSON-HOUSTON, and CHENEAU, L. J. J.-B. June 30, 1936, No. 18175. Convention date, July 1, 1935. [Class 38 (v)] [Also in Group XXXVIII] Relates to a fire-alarm system such as shown in Fig. 1, in which sudden expansion of air or gas in a tube 12 extending round a building due to a fire causes a diaphragm 3 to move away from a contact screw 15 and so operate an alarm, whereas a slow expansion of air has no effect because of an orifice in the diaphragm which allows the pressure on both sides of the diaphragm slowly to equalize ; and consists in providing such a system with testing devices, such as shown in Fig. 3, operable electrically to produce a sudden change of pressure to operate the alarm, the change of pressure being made equivalent to that produced by a fire by providing a diaphragm 29 with a suitable aperture in the connection between the testing device and the exploring tube 12. In the form shown in Fig. 3, the testing device is operated by sending a current through an electromagnet 30 which attracts a plunger 33 and compresses the air in front of the diaphragm 29. In another form, Fig. 4 (not shown) current is passed through a resistance in a closed chamber thus increasing the pressure suddenly within the chamber. The circuits to these testing devices may be closed either by the operation of manual switches or automatically at predetermined intervals, Fig. 6 (not shown). In the latter case the testing devices are successively connected in a controlling electric circuit by means of a rotary switch which automatically steps its wipers to the next group of contacts when the alarm apparatus operates as a result of the test. If the alarm apparatus fails to operate as a result of the test the wipers remain stationary and a circuit is completed to operate an indicating device. The fire-alarm system may also be provided with a device, which causes the diaphragm 13, Fig. 1, to operate to give the alarm when the temperature in the building rises slowly to a high value. This device,' Fig. 5 (not shown) comprises a piston having a piston rod soldered to the cylinder. When the solder melts, a spring moves the piston causing rapid compression of air in the cylinder which is connected to the exploring tube 12.
Patent GB-1134458-A (GB)
Title: Improvements in and relating to cotton feeders for feeding cotton from a separator to a blow box
Inventor: MERKEL CHARLES MICHAEL
IPC: D01G9/00
Filed: 1967-04-20
Abstract: 1,134,458. Cotton feeder and opener. CONTINENTAL MOSS GORDIN Inc. 20 April, 1967, No. 18210/67. Heading D1N. Air escaping through a lower air lock A from a blow box BB containing air at superatmospheric pressure is channelled through ducts 30 which extend from breaker means 25 to the space above cotton contained in the bin which has been fed thereto from a separator S. The separator includes a rotary drum 12 under suction action from a blower 13. The provision of two air locks A in tandem reduce the leakage of air upwards into the bin. The air is preferably heated and humidified before being blown into box BB. Switches S1 and S2 are provided for controlling the separator S and the blower 13 for keeping the cotton within the bin between desired levels. The warm pressurized air delivers the cotton through conduit C to a gin, cleaning device, drying machine or other treatment equipment.
Patent GB-1104809-A (GB)
Title: Bags
IPC: B65D30/18
Filed: 1966-04-26
Abstract: 1,104,809. Block-bottomed valve bags. BEMIS CO. Inc. 26 April, 1966 [5 May, 1965], No. 18300/66. Heading B8K. [Also in Division B5] Bag-bottom.-An insert 35 is heat-sealed into the bottom of a block-bottomed bag formed from a tube 1 of thermoplastic material. In the form shown the insert 35 underlies end flaps 15 of the bottom, being sealed thereto along lines 63 which also join the end flaps 15 to the underlying regions of side flaps 31, 33. Strips of heat-seal-inhibiting material (39), Fig. 2A (not shown), on the under-surface of the insert 35, Fig. 5, corresponding to the positions of the seals 63, prevent the insert 35 from adhering to the adjacent section of the opposite wall of the bag. Heat sealing is also performed along lines 65, and the flaps 31, 33 are folded in along fold lines 27, 29, to cover the insert 35. A heat-seal-inhibiting mandrel (see Division B5) may then be placed beneath the flaps 31, 33, which are heat-sealed together along parallel lines (79), Fig. 8 (not shown). The mandrel is then removed and further seals (84), parallel to the seals (63), complete the bag bottom, the heat-seal-inhibiting strips on the insert 35, Fig. 5, again preventing it from adhering to the adjacent wall. In an alternative construction the insert (35a), Fig. 15 (not shown), is laid on top of the end flaps (15), the heat-seal-inhibiting strips (39a), Fig. 16 (not shown), being provided on the inner surface of the edge of the tube (1), instead of on the insert. In a further form the insert (35b), Fig. 18 (not shown), is provided on its under-side with a strip (99) of heat-sealinhibiting material joining the two edge strips (39), thus dispensing with the need for a mandrel in making the seals (79). A further embodiment is described in which the inhibiting strips are completely dispensed with, all unwanted adhesion being prevented by mandrels. Bag-top.-The top of the bag may be folded similarly to the bottom, but may be provided with two inserts to form a filling valve. One insert 45, Fig. 5, underlies one end flap 15a of the tube, and is sealed thereto along a line 63a. A heat-seal-inhibiting strip (51), Fig. 3A (not shown), prevents adhesion to the underlying wall. A second inhibiting strip (49) lies along the line of a second seal 63a, Fig. 5, preventing the insert 45 from adhering to the edge of the end flap 15a which it overlaps. A further insert, whose edges 55a, 55b, are shown, is sealed along the line 63a to the under-surface of the second end flap 15a, but carries an inhibiting strip (59), Fig. 4A (not shown), to prevent adhesion to the adjacent tube wall. When the side flaps 31a, 33a have been folded over and sealed along lines (79a, 84a), Fig. 13 (not shown), a passage (87), Fig. 10 (not shown), is left between the inserts (45, 55), to permit insertion of a filling spout. Adhesion of the back wall of the tube to the adjacent surfaces may be prevented, as for the bottom of the bag, by means of a mandrel, or by the prevention of an inhibiting strip (101), Fig. 19 (not shown), joining the strips (49, 51) on the insert (45a).
Patent GB-130333-A (GB)
Title: Improvements in Electric Ignition Apparatus for Internal Combustion Engines.
IPC: F02P5/06
Filed: 1918-09-24
Abstract: 130,333. Remy Electric Co., (Assignees of Conklin, O. F.). Sept. 19, 1917, [Convention date]. Centrifugal governors.-In timing-mechanism for ignition apparatus for internal-combustion engines, the spindle 15, driven by the engine, carries a disk 16 to which are pivoted, on pins 17, a series of centrifugal weights 18 formed with inwardlyprojecting arms 25. With increase of speed, the weights move outwards and the arms 25 engage the arms 23 of a sleeve 22, mounted loosely on an extension of the spindle, which is thereby caused to move in relation to the spindle. The contactbreaker cam 24 is mounted on the sleeve. The outward movement of the weights is limited by pins 27 in the arms 23 engaging the ends of slots 29 in the disk: the upper ends of these pins are connected to the pivot pins by springs 28 which assume more effective positions as the weights move out; at the same time, the contacting points between the arms 25 and the arms 23, which have curved sides, move towards the axis of the spindle. The shapes of the arms 23 and 25 may be varied as desired. The weights may be turned over, to allow the apparatus to be run in the opposite direction, and each is provided with a rivet 19 having rounded heads to form surfaces for bearing on the disk. The contact-breaker plate 12 and the distributor cap 13 fit over dowel pins 11 in the part 10 of the casing, and the distributor cap 13 is secured by spring clips 14.
Patent GB-144504-A (GB)
Title: Improvements in means for operating valves and other moving members by fluid pressure
IPC: F16K47/00
Filed: 1919-07-24
Abstract: 144,504. Scott's Shipbuilding & Engineering Co., and Nicholson, A. I. July 24, 1919. Machines and apparatus.-A valve or other moving member of the type in which fluid pressure is caused to act on a differential piston one part of which is always under pressure, while the other part is only under pressure when it is required to move the valve in the corresponding direction, is provided with damping-pistons for cushioning the differential piston at the ends of its stroke. A casing a is provided with a bearing c at one end and a screwed plug g at the other. The chamber f is tapered at o and p and is provided with a fluid inlet i. The differential ram b, e carries damping-pistons k, l, having valve members q secured by screws s. The adjacent faces of the pistons k, l are of equal area, but the face m of the piston k is of greater area than the face n of the piston l. A pump supplies pressure fluid to the chamber f continuously, and to the chamber h intermittently by means of a valve when it is required to move the valve upwards. At the end of each stroke the movement is damped by the action of the pistons k, l, in conjunction with the tapering walls o, p. Alternatively, only one damping-piston may be used.
Patent GB-958164-A (GB)
Title: Method and apparatus for charging furnaces or the like
Inventor: SMITHSON DEREK ALAN
IPC: C21C5/46
Filed: 1962-05-14
Abstract: 958,164. Charging metal melting furnaces. DAVY & UNITED ENGINEERING CO. Ltd. April 30, 1963 [May 14, 1962], No. 18427/62. Heading F4B. A method of charging material through an opening in a furnace, converter or the like comprises positioning the open end of a first discharge box adjacent the opening and discharging at least one further box through the opening via the first box. The apparatus comprises three charging boxes mounted on a common frame 41, the central box 14 having an open end nearest the converter mouth 31, the outer two boxes 51 being closed at both ends. Each outer box is connected by brackets 54 to a shaft 52 substantially parallel to the upper edges of the central box which is rotatably supported by uprights and brackets 53<SP>1</SP>. At the end of each shaft a pinion wheel 55 is mounted which mates with a rack 56 connected to a rod 57 of an hydraulic cylinder 58. The frame 41 is pivotally secured by a shaft 42 mounted in ends 59 to a cradle 15 and is rotated about the axis of this shaft by hydraulic rams 43, 45. The box 14 is also hinged to the shaft 42 and is rotated about its axis beyond the frame 41 by the hydraulic ram 62, 63. The cradle 15 is carried on four pairs of articulate flanged rollers 35 on the chassis 12 mounted on rail wheels 13 of a scrap charging car and is moved from the normal position during movement 15<SP>1</SP> to the discharging position 15 by an hydraulic ram 37, 39. Having positioned the opening in the box 14 adjacent the converter mouth 31, the boxes are discharged by tilting the frame 41, further tilting the box 14 to discharge the material therein, returning the box 14 to the frame 41, rotating an outer box 51 to discharge into the box 14 which is again further tilted, returning the boxes to their previous position and repeating the process with the second box 51. A second frame 41 with boxes 14, 51 may be provided and loading may be carried out by straight crane lifts. Specification 946,145 is referred to.