baber/WOPTO huggingface dataset:
Patent GB-979744-A (GB)
Title: Powered impact tools
IPC: B25D15/02
Filed: 1963-02-08
Abstract: 979,744. Percussive tools. T. MIKIYA. Feb. 8, 1963 [Aug. 7, 1962], No. 5296/63. Heading B4C. A compressed air-actuated percussive tool comprises a rear cylinder 1 in which a hammer piston 22 slides, a front cylinder 2, a toolholder 35 slidable in the front cylinder, air passages 15, 15<SP>1</SP>, 16 formed in the walls of the cylinders, valve means 8 controlling the supply of air to the passages, an inlet port 30 and exhaust port 32 for admitting and exhausting air from the rear of the piston when the latter is in a retracted and advanced position respectively, a port 41 for introducing compressed air from the passage 16 into air passages 40 in the holder when it is in its advanced position, an anvil 34, and exhaust ports 32, 44 for connecting the spaces above and below the anvil to atmosphere. The retracted position of the piston 22, anvil 34 and tool-holder 35 is as shown in Fig. 2, so that in operation, when the valve 8 is opened by means of a lever 9 compressed air is fed via a passage 18, ports 15, 15<SP>1</SP>, 30, 29 into a bore 23 in the piston to thereby drive the latter against anvil which, in turn, strikes the tool-holder 35. Towards the end of the stroke of the tool-holder, the air is fed via the passage 16, port 41 and ports 40, 40<SP>1</SP> in the tool-holder into a space defined by a shoulder 42 on the front cylinder and the adjacent end face of the holder, the air trapped in the space providing a cushion effect. When the stroke of the holder is completed as shown in Fig. 1, air in the passage 16 communicates with the ports 40, 40<SP>1</SP> via the port 41 and thereby returns the holder. The piston 22 is returned partly under its own weight and partly by the force, transmitted via the anvil, of the expansion of air in the end spaces.
Patent GB-151207-A (GB)
Title: Improvements in or relating to flues, chimneys and the like
IPC: F24B1/191
Filed: 1920-02-23
Abstract: 151,207. Mathews, R. J. Feb. 23, 1920. Chimneys and flues.-In flue lintels for domestic fire-places, of the type formed in halves 1 having channels 3 which register to form the flue when the halves are assembled, the edges of the two channels register throughout their entire contour, so that the flue formed extends into both blocks throughout its entire length and breadth. The lintel consists of two generally rectangular blocks 1, one only being shown, of concrete, clay, or the like, with or without reinforcement; they may have recesses 10, 11 for lightening purposes, and may be provided with tongue-and-groove connexions 12. The flue contracts upwardly, and inclines to one side, the chimney flue 5 above it being preferably oppositely inclined to avoid downdraught.
Patent GB-475953-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H02M5/12
Filed: 1936-02-22
Abstract: 475,953. Phase-changing; transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 22, 1936, No. 5393. Void. Convention date, Feb. 23, 1935. [Class 38 (ii)] Main and auxiliary windings on each limb of a three-phase transformer are interconnected with each other so as to form a closed polygon, the opposite parallel sides such as a<2>, a' of which are formed by the main and auxiliary windings of each phase. Three-phase input is applied at the three corners of the figure displaced 120‹ and output is taken off from three other corners phase displaced from the first three by an angle dependent on the magnitude of the E.M.F. in the auxiliary windings. Input may be applied at the midpoints of the three sides formed by the auxiliary windings and two sets of phase displaced potentials may be taken off from the corners. Input and output may also be taken at tapping points on the auxiliary windings. The direction of rotation of the phase shift angle may be reversed by interchanging the supply and output connections or by interchanging the main windings.
Patent GB-107188-A (GB)
Title: Improved Lighting Equipment for Cycles.
Inventor: BOTHWELL GEORGE
IPC: B62J6/00
Filed: 1917-01-17
Abstract: 107,188. Bothwell, G. Jan. 17, 1917. Frames.-The upper tubular member of a cycle is used to convey light rearwards from a lamp, and is closed at its rear end by a glass pane 12 so that a red light is shown at the rear in addition to a white light in front.
Patent GB-728396-A (GB)
Title: Improvements in or relating to apparatus for sealing bags
IPC: B65B51/16
Filed: 1952-02-29
Abstract: 728,396. Closing filled bags. STAFFORD, C. Nov. 11, 1952 [Feb. 29, 1952], No. 5408/52. Class 94 (1)., Apparatus for sealing bags includes an endless conveyer 10 comprising two parallel chains passing over sprocket wheels 13, 14 driven by an electric motor 56 through belt coupled pulleys, and transverse brackets 17 between the chains each carry a container 18 in which the partly filled bags are placed. Each container has two bars 71 pivoted to its sides and urged apart and against stops 84 by a spring 83. As each bag approaches the sealing position the lower ends of the bars engage cam tracks 75 which urge the upper ends of the bars together below the bag mouth. The sealing means is mounted on a fixed bracket 30 and includes a plate 32 with two pairs of arms 33, 34 between which is carried a rectangular block 35 and below which is carried a rectangular plate 42. Two sealing rollers 50, 51 beneath the plate 42 are mounted on shafts 52, 53 respectively, and the shaft 52 is driven via belts &c. from the electric motor. The shaft 53 is supported in a bar 43 pivoted at one end to the arms 33, and the other end of the bar slides between arms 34 and is adjustably held by a rod 46 screwed into the block 35. The sealing rollers are knurled and the roller 50 has a rib 39 engaging a groove 49 in the roller 51. Mounted on each roller shaft above the plate 42 is a collar 61 heated by gas jets 62, 63. Converging guides 64 close each bag mouth prior to its reception between the rollers. The bags may be sealed without heating, and if the bag is not of thermoplastic material the inner surfaces thereof may be coated with a thermoplastic cement. Instead of two sealing rollers, one roller co-operating with a flat plate may be used.
Patent GB-749150-A (GB)
Title: Improvements in or relating to spinning regulators for textile spinning and twisting machines
IPC: D01H1/30
Filed: 1954-02-24
Abstract: 749,150. Speed regulators for spinning machines. SIEMENS-SCHUCKERTWERKE AKT.-GES. Feb. 24, 1954 [Feb. 27, 1953], No. 5477/54. Class 120 (2). In a speed regulator for spinning &c. machines, a control element, for determining by its angular displacement the speed of the spinning motor, is arranged to be angularly displaced by a crank having a crank-pin connected for operation by the output of summating mechanism which combines components of adjustment proportional to basic and chase speeds and a lever connected to means for setting the initial spinning speed is arranged to vary according to its setting, the effective distance between said crank-pin and its crank axis, whereby said element is subject to a single point adjustment taking account of the initial, chase and basic speeds. In the arrangement shown, basic speed is fed via wormgearing 5, cam 1, follower lever 8 connecting rod 10 and lever 14 to the summating chain 16 and chase speed is fed in a similar manner via bevel gearing 3, cam 2, follower lever 9, connecting rod 11 and lever 15. The output from the summating mechanism 16, 17, 18 displaces pivot point 19 and hence the connecting rod 20 for operating crank 21. The crank 21 is secured to the regulator shaft 23 controls the speed of the spinning motor. Arranged coaxially on the shaft 23 and rotatable thereabout is a bush 24 having secured thereto a lever 25 which is initially set for the desired initial spinning speed. The lever 25 and the crank 21 have arcuate slots 26 and 22 respectively which cross in scissor fashion and houses the crank-pin 27 at the end of the connecting rod 20. Rotation of the lever 25 thus sets the crank 21 to the position of angular adjustment of the shaft 23 for the desired initial spinning speed whilst simultaneously determining the distance of the crank-pin 27 from the crank axis. Thereafter the vertical displacement of the rod 20 determines the position of the crank 21 and thus the speed of the spinning motor.
Patent GB-1080244-A (GB)
Title: Digit pulse re-timing arrangement
Inventor: PRICE JOHN CLIFFORD
IPC: H03K5/13
Filed: 1965-02-09
Abstract: 1,080,244. Transistor pulse circuits. STANDARD TELEPHONES & CABLES Ltd. Feb. 9, 1965, No. 5552/65. Heading H3T. Pulses of greater amplitude, resulting, for example, from two separate pulses coinciding, are reformed into two successive pulses by feeding the input pulses to a monostable amplitude discriminator which produces a delayed additional pulse when the greater pulse occurs. Input pulses are fed directly to transistor T3 of an OR gate and also to the input of a flip-flop T1, T2. The latter responds only to the greater amplitude pulses and the trailing edge of its output pulse produces a delayed pulse which is fed to the other transistor T3 of the OR gate. The circuit may be used in a parallel to serial code converter.
Patent GB-770578-A (GB)
Title: Electrostatic generator
IPC: H02N1/10
Filed: 1955-02-24
Abstract: 770,578. Electrostatic generators. WOODCOCK, T. P. Feb. 8, 1956 [Feb. 24, 1955], No. 5566/55. Class 35. An electrostatic generator comprises rotating drums or discs 7 of insulating material which are charged with opposite potentials on either side by means of brushes 10 and plates 11 and discharged at collecting brushes 22 inside a hollow electrode 19. The insulating discs may be of materials disposed to take positive charges or negative charges, and a supply of both polarities may be derived from a machine having discs of both sorts of material.
Patent GB-1131401-A (GB)
Title: Improvements in or relating to tube drawing installations
IPC: B21C1/32
Filed: 1966-02-09
Abstract: 1,131,401. Drawing. MANNESMANNMEER A.G. 9 Feb., 1966 [10 Feb., 1965], No. 5567/66. Heading B3P. A tube drawing apparatus comprises a drawbench 2 having a die-plate 3, a turret-type back bench 4 and mandrel inserting mechanism 5, associated with a straightening machine 6 which receives drawn tubes from the bench and from which tubes are carried by a roller conveyer 7 to a tube transfer carriage 9. The transfer carriage 9 is loaded with tubes and then moved to a discharge position 9a where it is located between a tube support table 15 of the draw-bench and a discharging mechanism comprising a frame 10, a driving mechanism 11 and a slide 13 which can be raised and lowered and which includes pivoted levers 14 which can be moved between a retracted position in which they are clear of the carriage and an operative position in which they are under a bundle of tubes in the carriage. Operation.-A bundle of tubes is passed through the first drawing stage and each tube after drawing is fed individually to the straightening machine 6. The straightened tubes are transferred by the conveyer 7 to the carriage 9, which when full is moved to the discharge position 9a. At the discharge station the pivoted levers 14 are moved under the carriage and the slide 13 is then raised by the discharging mechanism to lift the tubes out of the carriage 9 to the level of the support table 15 of the drawbench. The carriage 9 then returns to the loading position adjacent the conveyer 7.
Patent GB-1304894-A (GB)
IPC: E04G23/04
Filed: 1970-02-05
Abstract: 1304894 Shoring U MANNCHEN 5 Feb 1970 [12 Feb 1969] 5570/70 Heading E1E In a method of a making an opening in a load bearing wall involving the installation of a permanent beam, two horizontally extending rows of superimposed pairs of holes 40 receive yoke elements of a plurality of prop frames 2 interconnected by tie members 28, 30. Each prop frame comprises two interconnected L- shaped members, each member constituting a yoke element and a prop element (16, 14 Fig. 1). The wall disposed between the holes is then cut away and the permanent beam installed the space between the beam and the upper edge of the cut away portion being filled with concrete. Consequent upon removal of the prop frames, the lower portion of the wall is cut away to produce the desired opening.
Patent GB-212566-A (GB)
IPC: G03B1/48
Filed: 1922-12-01
Abstract: 212,566. Huber, A., and Simons, W., (Assignees of Kucharski, S.). March 25, 1922, [Convention date]. Printing-apparatus; contact printing frames.-An interchangeable back-plate i for a roll-film camera has light-trapped slots k, l for the passage of a negative film N which is to be printed on to a positive film P passed through the camera. A double-flap exposure shutter o, q is opened by the arm n and closed by the spring r. Specification 195,351, [ Class 98 (i), Photographic cameras &c.], is referred to.
Patent GB-1091122-A (GB)
Title: Improvements in and relating to a vehicle heating system
IPC: B60H1/18
Filed: 1965-02-10
Abstract: 1,091,122. Heating vehicles. STEWARTWARNER CORPORATION. Feb. 10, 1965 [Feb. 10, 1964], No.5800/65. Headings F4S and F4V.  In a motor vehicle heating system in which air delivered by the vehicle engine fan 30 is heated by exhaust gas heat exchangers 34, 35, a booster heater 24 is provided which is thermostatically controlled to regulate the temperature of the air, before its distribution to the vehicle cab via conduits 18, the air flow to the booster heater being supplemented by a blower 80. The heater 24 comprises a central burner tube 46 supplied with combustion gases from a burner 48 and surrounded by an intermediary tube 54 and an outer tube 52 through which the air is circulated, the outer tube having dual air inlet and outlet ports 56, 57 and 59, 60, respectively. A bi-metal element 70 mounted in the air heating jacket of the heater 24 is connected to switches (Fig. 5) which render the heater 24 inoperative when the air temperature therein exceeds a preset temperature and alternatively renders the heater operational when the air temperature falls below a further pre-set temperature. The blower 80 is driven by a motor 74 which also drives a combustion air blower 72 for the heater 24. The fuel supply to the burner 48 and operation of the motor 74 are both controlled by the thermostat 70. The blower 80 operates when the heater 24 is in use and remains on for a time after the heater 24 is switched off to remove residual heat, e.g. from the burner 24.
Patent GB-752469-A (GB)
Title: Suction devices for picking up articles
IPC: B25B11/00
Filed: 1954-02-27
Abstract: 752,469. Feeding devices. PRESS EQUIPMENT, Ltd., and EVANS, F. A. Feb. 15, 1955 [Feb. 27, 1954], No. 5852/54. Class 117. [Also in Group XXX] Plugs k, Fig. 7, may be inserted in holes c leading from the body a, Fig. 1, of a suction head to projecting cups e for engaging articles to be picked up. By this means the head can be adapted to lift a smaller article without loss of suction through those cups not engaged by the article. In the form illustrated solid plugs are screwed into the apertures c not to be used while bored plugs are inserted into those to be used. The rubber cups e are formed in a rubber base d secured to the body a by an apertured plate g secured by screws. The body a is a casting or die-casting and its upper face is closed by a plate b held against a machined face on the body a by screws. The apertures c may be drilled and tapped directly into the body a or into a common plate fitting over an aperture in the body. The surface formed by the nozzles e may be plain, as shown, or curved to pick up articles of complementary shape.
Patent GB-164099-A (GB)
Title: Improvements in or relating to india rubber and like soles and heels for boots and shoes
IPC: A43B13/12
Filed: 1920-02-27
Abstract: 164,099. Pearce, E. R., and Wood- Milne, Ltd. Feb. 27, 1920. Connecting uppers to soles; soles.-India-rubber soles 2 are reinforced at the margins only by one or more insertions 7 of open canvas or other netlike textile material. The marginal insertion is moulded in the rubber sole and may be previously coated with harder rubber. The insertion serves as a hold for stitching the upper surface 5, Fig. 3, or the sole may be curved as shown in dotted lines 5a.
Patent GB-1141704-A (GB)
Title: Readback circuits for information storage systems
IPC: G11B20/14
Filed: 1966-02-11
Abstract: 1,141,704. Recording and playback; synchronizing storage components and signals. RADIO CORPORATION OF AMERICA. 11 Feb., 1966 [3 March, 1965], No. 6102/66. Headings G4C and G5R. Binary information recorded by means of phase modulation on a magnetic or dielectric medium is read out by means of a transducer coupled to an equalizing circuit which provides a substantially linear frequency response over the required range and advances the phase of the signal by an amount increasing with frequency to a value of 90 degrees at the highest frequency used. This brings the third harmonic into phase with the fundamental and produces a better simulation of the initial rectangular recording signal. A crossover detector derives timing pulses from the zero amplitude crossovers in the equalized read-out signal.
Patent GB-800506-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: NEALE DENIS MANKTELOW
IPC: H03F3/45
Filed: 1956-02-28
Abstract: 800,506. Photo-electric indicating arrangements. ILFORD, Ltd. Feb. 27, 1957 [Feb. 28, 1956], No. 6157/56. Class 40 (3). [Also in Group XL (c)] In a photo-electric exposure meter the output from a photo-voltaic cell is applied to the input of a differentially operated transistor amplifier to give a reading on a meter A. By adjustment of the resistors R1 ... R4 the circuit may be made sensibly independent of temperature variation (see Group XL (c)). Increased temperature stability may be obtained by employing transistors which show the same variation of leakage current with temperature.
Patent GB-744314-A (GB)
Title: Improvements in or relating to grease guns
IPC: F16N3/12
Filed: 1953-03-05
Abstract: 744,314. Grease guns. NEUMAN, C. J. May 31, 1954 [March 5, 1953 ; May 29, 1953], Nos. 6159/53 and 14986/53. Classes 102(1) and 102(2). In a grease gun, the container 1 is fitted with a follower piston 7 which slides freely on a rod 10 that passes through a cover 25 and has slots 15, 27 which co-operate with spring arms 14, located beneath a washer 24, to retain the rod 10 in its inner or outer positions ; the catch is freed by rotating the rod 10. The piston 7 is loaded by a conical spring 16 and is retracted by the stop 12 on the rod 10. The gun is fitted with a pump piston 18, actuated by a lever 17, and a delivery valve 20. An air bleed may be provided on the container near the cylinder 2 and may be closed by a ball valve which protrudes and may be passed to open it. Specification 714,147 is referred to.
Patent GB-302839-A (GB)
Title: Improvements in card clothing for the rollers of scribbling and carding machines
IPC: D01G15/84
Filed: 1928-02-28
Abstract: 302,839. Firth & Sons, Ltd., T. F., and Goodall, F. Feb. 28, 1928. Cards, wire; carding-engines.-Strips of card clothing for application to the fancies or other rollers of carding and scribbling machines are provided with strips b of wire teeth and intermediate plain spaces c, so disposed that when the strips are mounted longitudinally on the roller the strips of teeth will extend in a slightly helical direction. Specification 5915/08 is referred to.
Patent GB-630582-A (GB)
Title: Improvements in apparatus for use in the delivery of liquids from containers by gaseous pressure
IPC: F16K1/30
Filed: 1947-03-05
Abstract: 630,582. Forcing liquids by gaseous pressure; injectors. ASSOCIATED MOTORISTS PETROL CO., Ltd. March 5, 1947, No. 6231. Convention date, March 11, 1946. [Classes 71 and 102(ii)] Apparatus for dispensing liquids from a container comprises a delivery pipe 1 extending from the container and fitted with a valve 3 that is opened by a trigger 20 that actuates a lever 15 which is also connected with lost motion in both directions to a stem 16 that actuates a valve 17 that controls the flow of compressed gas to a nozzle 6 which draws air through holes 24 and delivers it past a non-return valve 7 to a tube 4 connected to the container for forcing the liquid through the pipe 1. The holes 24 open into grooves 26 that extend to an edge on the injector casing to prevent possible obstruction of the passage to the holes 24. A guide rib 27 is provided for positioning the necks of bottles to which liquid is to be dispensed.
Patent GB-608732-A (GB)
Title: Improvements in or relating to guide devices for attachment to sewing machines
IPC: D05B35/06
Filed: 1946-02-28
Abstract: 608,732. Sewing-machines. HICKS, R. B. Feb. 28, 1946, No. 6303. [Class 112] A guide for use in sewing a welt 1 to a layer of material, or between two layers of material comprises a member 5 fixed to the sewing machine and inclined to the direction of feed, the end 7 of this member, located in advance of the presser-foot 4, being inclined or curved towards the presser-foot and adapted to fit over, or between the layers of, the material. In the form shown, for guiding a welt with a beaded edge between sections of a mattress cover, the member 5 has channel parts 9 for retaining the welt on the guide; these parts may be separate from the member 5, and may be united to form a continuous channel. The member 5 is pivoted to a base-plate 14, which carries a continuation piece 8 curving downwards over the edge of the table, and is held in the required position by a pawl 12 engaging one of several notches in an arm 15 on the guide member.
Patent GB-788176-A (GB)
Title: Improvements in or relating to magnetic powder clutches
Inventor: STEADMAN CLIFFORD STUART
IPC: F16D37/02
Filed: 1955-03-03
Abstract: 788,176. Magnetic fluid clutches. SMITH & SONS (ENGLAND), Ltd., S. March 1, 1956 [March 3, 1955], No. 6376/55. Class 35. A magnetic-fluid clutch has a U-section field member 2, 4 whose limbs are bridged by a freely rotatable flux-carrying member 15, and a thin driven member 10, 11 in the air-gap between these members. Air-gap 14 contains the active magnetic powder, but gap 17 may also have some. Specification. 649,553, [Group XXXIV], is referred to.