baber/WOPTO huggingface dataset:
Patent GB-929883-A (GB)
Title: Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapour
Inventor: LOVELOCK JAMES EPHRAIM
IPC: G01N30/70
Filed: 1960-01-26
Abstract: 929,883. Determining relative quantities of fluid mixture constituents. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 13, 1961 [Jan. 26, 1960], No. 2792/60. Class 37. In an arrangement in which adsorbed substances are eluted from a chromatography column into a rare gas having an excitation potential higher than the ionization potential of the substances, the rare gas is excited into a meta-stable state to cause ionization of the substances, the ionization current of the substances is measured as in Specification 882,977, and the ionized molecules are subsequently swept away by the passage of a scavenging gas through the chamber as in Specification 919,208; the ionization chamber includes at least three electrodes, two the anode 25 and cathode 15 for accelerating electrons produced by collisions between beta particles and gas atoms to excite the gas, and a third 29 for collecting the ionization current produced when atoms of meta-stable gas collide with molecules of the substances. The chamber comprises a brass body 11 having a bore 12 which is closed, except for a scavenging bore 30, by a PTFE member 17, and the metal end 25 of a capillary gas chromatography column 21 which passes through the member 17 constitutes the anode and is maintained at 600-2000 volts above electrode 29. A tubular tritium-containing source of beta radiation 24 is supported near several layers of metal gauze 15 provided to form a cathode, and the cathode is held at a potential 100 volts below electrode 29. The scavening gas is admitted through an extension 14 and a fourth electrode which is maintained positive to electrode 29 and may be included in the chamber to provide a more uniform electric field, may comprise a similar ring to electrode 29, placed in positions 29a, or 29c, or may be in the form of a ring 29b around electrode 29. An alternative chamber of glass is mentioned and some suitable chamber dimensions are given.
Patent GB-305361-A (GB)
Title: Improvements relating to motor vehicles
IPC: B60K17/36
Filed: 1928-01-28
Abstract: 305,361. Foden, E. R., and Fodens, Ltd. Jan. 28, 1928. Spring suspensions.-The ends of the two driving axles are connected by links c, d to sliding blocks e to which are secured the centre straps f of the main springs the outer ends of which bear on the axle housings. The blocks e are guided horizontally in frames h secured to the lower ends of plates i upon the side members j of the main frame.
Patent GB-570654-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C08L27/06
Filed: 1943-02-19
Abstract: A coating composition consisting of polymethyl methacrylate resin and a vinyl chloridevinyl acetate copolymer, dissolved in organic ketone solvents with a plasticizer for the resins consisting of glyceryl monolactate triacetate.  Specified solvents are methyl-ethylketone and methyl-isobutyl-ketone.  In an example, methyl-ethyl-ketone and methyl-isobutyl-ketone are mixed and heated to 50 DEG  C.  Polymethyl methacrylate and a vinyl chloride-vinyl acetate copolymer are added and mixed to give a clear solution and then glyceryl monolactate triacetate added. The proportion of solvents and plasticizer may be varied to produce coatings of required viscosity.  Aniline dyes may be added to produce coloured coatings.  The coatings may be applied to metal or fabric by brushing, spraying or dipping either in hot or cold state.
Patent GB-1484761-A (GB)
Title: Electrical connectors
IPC: H01R12/50
Filed: 1975-01-22
Abstract: 1484761 Two-part couplings AMP Inc 22 Jan 1975 [14 Fob 1974] 2862/75 Heading H2E A connector comprises male 1 and female 3 members each member having respective pairs of cantilever contacts 5, 35, both pairs being flexed on mating, the male member having an angulation 12 that leaves the end surfaces 29 turned inwardly after engagement by the lobes 41 of the female member. The members 1, 3, which may be stamped from sheet metal, have oppositely directed terminals 7, 37 which fit tightly in respective housings 2, 4 (Figs. 1-4, not shown).
Patent GB-1036022-A (GB)
Title: Improvements in or relating to shredding machines
Inventor: REED HAROLD EDWIN
IPC: A01F29/06
Filed: 1964-01-22
Abstract: 1,036,022. Cutting fodder &c. TERRA FORCE (GREAT BRITAIN) Ltd. Jan. 22, 1965 ,[Jan. 22, 1964], No. 2868/64. Heading A4C. A shredding machine for green fodder  or other agricultural produce comprises a rotor 13 carrying blades 30 with sawtooth cutting edges 32 which co-act by interdigitation with complementary teeth 42 on a fixed blade 41, the gap between the co-acting teeth 32, 42, through which the shredded material is discharged, being adjustable by selective positioning of either the fixed blade 41 or the rotary blade 30 radially from the axis 20 of the rotor 31. The rotor 13 comprises a driven shaft 20 carrying radial vanes 30 each with a blade 30 bolted thereto as at 31. The fixed blade 41 has sawteeth 42, 43 on its opposed edges to be reversibly mounted on a carrier plate 14 by bolts 44 extending through vertical slots 45 which facilitate radial positioning of the fixed blade 41. The carrier plate 14 is pivoted about a shaft 33 against the action of a pair of tension springs 37 whereby in the event of hard foreign bodies engaging the fixed blade 41 the plate 14 pivots outwardly from its normal position against a stop 38 to permit passage of the foreign body. A feed hopper 15 is located above the machine casing 10, 11, 12 which has a base 16 mounted on wheels 17.
Patent GB-386135-A (GB)
Title: Improvements in talking machines
IPC: G11B19/265
Filed: 1932-01-30
Abstract: 386,135. Gramophones. CARSON, B. R., 40, E. Coulter Avenue, Collingswood, New Jersey, U.S.A. Jan. 30, 1932, No. 2874. Convention date, Jan. 30, 1931. [Class 40 (ii).] A gramophone turntable is arranged to be driven either by and with the spindle or through gearing from the spindle and at a different constant speed, whereby it is adapted for playing different records requiring different playing speeds. A motor unit with driven spindle 13, Figs. 1 and 4, on which the turntable 16 is freely mounted is supported from the motor board 11, and the spindle has fixed thereto a hub carrying a wheel 14 and loosely mounted thereon a hub 20 carrying a wheel 22 and a notched disc 27 adapted to be engaged by a tooth 30 on a pawl 28 pivoted at 29 on an annular plate 17 with a boss 18 freely mounted on the hub 20. The plate has an offset portion 23 carrying a spindle 24 for a hub 25 on which are fixed wheels 26, 27 gearing with the wheels 22, 14. A control lever 35, mounted on a fixed pivot 36, when moved into the position shown in Fig. 1, disengages the pawl 28 from the disc 21 but holds the plate 17, and the turntable is now driven through the wheels 14, 27, 26 and through a friction washer 49 assisted by a yielding pin 47 on the turntable engaging a pin 46 on the disc 21. On movement by the lever 35 to release the pawl, a spring 32 engages the pawl with the notched disc 27, thus preventing relative rotation of the plate carrying the wheels 26, 27 so that the turntable is now driven from and at the same speed as the spindle 13.
Patent GB-510521-A (GB)
Title: Improvements in and relating to toggle-operated electric circuit breakers
IPC: H01H71/50
Filed: 1938-01-31
Abstract: 510,521. Electrically-released switches. DORMAN & SMITH, Ltd., and SMALLEY, T. Jan. 31, 1938, No. 2943. [Class 38 (v)] A circuit-breaker of the kind in which the pivoted contact arm is closed by a handle and intermediate toggle mechanism, has one end of the toggle disposed in a closed slot having a narrowed portion formed by a permanent stop on one edge of the slot and a balanced stop pivoted on the opposite side, the two forming a thrust-receiving stop movement of the end of the toggle in the slot during closing. The balanced stop when moved, allows the free end of the toggle to pass beyond it and the permanent stop, and allows the toggle-end to ride over it and return to its thrusting position where it is again trapped in front of the balanced stop, by the automatic return of the latter to its stopping position. The contact-arm 5 is pivoted at 6 and provided with a slot having a recess 12 forming the permanent stop which co-operates with the roller 13 on the spring-urged bellcrank lever 14 forming the balanced stop. In order to close the breaker from the position shown, the handle 7 is rotated anticlockwise about pivot 9 and, by means of its extension 8, drives the link 10 inwards until the dead-centre position is reached. Further movement of the handle draws back the roller 11 and when it enters recess 12, the spring rotates the lever 14 anticlockwise until the stop 15 bears on the arm, thus trapping the roller 11 in the recess. Reverse rotation of the handle closes the breaker, the toggle being retained in fully-extended position by a stop. When the lever 14 is deflected, the arm 5 falls back into the open position shown. In a modification. Figs. 3, 4 (not shown), the link 10 and roller 11 are pivoted on arm 5 and the opening with recess 12 and lever 14 are provided on the extension 8, the operation being similar.
Patent GB-1459365-A (GB)
Title: Take-up frame for pile fabric
IPC: B65H75/02
Filed: 1975-01-23
Abstract: 1459365 Fabric-supporting reels SCHEIBLER PELTZER & CO 23 Jan 1975 [22 Feb 1974] 3029/75 Heading B8M A take-up frame 1 for pile fabric comprises two plastics suspension frames 3 disposed at the ends of a shaft 2 and which are provided with guideways 7 in which metal hooks 5 to engage the fabric selvedges are disposed. In one embodiment, Figs. 1 and 2, the hooks 5 are provided, for each slot 7, in the form of continuous bands 4 connected to the rear 10 of the respective frame 3 by a bolt 9 extending through a slot 8 in the band 4. When fabric is hooked on to the ends 6 of the hooks 5, the pull in the fabric thrusts the band 4 in the direction of an arrow 16 so that a pointed end 13 of the band 4 penetrates a cardboard tube forming the shaft 2. Notching of the end 13 into the shaft 2 is assisted by pull in the direction of arrows 14, this movement being permitted by the inclination of the slot 8. The hub 12 of each frame 3 is provided with openings 11. In the embodiment of Fig. 4, each hook band 4 comprises individual hooks 5 joined by an adhesive. The hooks are set into the operating position by impact, e.g. a hammer 18, the rear 10 of the frame 3 acting as a stop for a bent part 21 of each hook 5. Each rotation of the frame 1 causes the next outermost hook to be thrust towards the opposite frame 3 and detached from the band 4, a retaining plate 19 moving outwardly by the width of one hook during each rotation. The engaged fabric prevents the hooks slipping back. Each hub 12 is positively engaged with the shaft 2 by a nail 22. In another embodiment, Fig. 5, each band 4 comprises inclined hooks 5 which are each pivoted in the direction of an arrow 17 by impact 18 to the operating position. The innermost hook 25 has a pointed end 13 which penetrates through the fabric into the cardboard shaft 2. In a further embodiment, Fig. 7, the slots 7 are closed on the rear of the frame 3 and are undercut at 26 to engage hook parts 21. Each band 4 comprises inclined hooks 5 projecting from the slot 7. As the frame 1 rotates, the hooks 5 are pivoted to the operating position by a finger 30 pivoted at 29 to a plate 28 mounted on a cylindrical rod 27 movable outwardly. The finger 30 is controlled by a bar 31 joined by a fitting 32 to a rotatable shaft 33 surrounding the rod 27. The edge 34 of the plate 28 retains each hook 5 in position until engaged by the fabric. In a still further embodiment, Fig. 8 (not shown), individual hooks (5) are slidable in the slots (7) and each frame (3) is retained on the shaft (2) by a thickened adhesive tape portion (35) on the latter. The hub (12) may have a conical flared portion, Fig. 9 (not shown), to enable it to be slid over the portion (35). In a modification of the hook, Fig. 12, a metal hook 5 is embedded in a plastics member 41 having cylindrical stub shafts 41a engageable in the slot 7.
Patent GB-339856-A (GB)
Title: Liquid fuel vaporizer for lighting, heating and cooking apparatus
IPC: F23D11/44
Filed: 1930-01-29
Abstract: 339,856. McDowell, I. Feb. 20, 1929, [Convention date]. Oil cooking-stoves, baffles.-A heat deflector plate 20 is arranged above a tubular burner 19 in an oil-burning cooking-stove.
Patent GB-627884-A (GB)
Title: A process for the coagulation of dispersions of substances of high molecular weight
IPC: C08C1/07
Filed: 1947-01-31
Abstract: Aqueous dispersions of ethenoid polymers and copolymers are coagulated by addition of a liquid organic hydroxy compound or ether miscible with water to a limited extent and which does not dissolve the polymer to any appreciable extent, sufficient being added to form a separate liquid phase.  If desired, mixtures of the oxygenated compounds with hydrocarbons, e.g. gasoline, may be used.  Specified compounds are butyl, amyl, isoamyl and benzyl alcohols, diethyl, di-isopropyl and diamyl ethers and phenol.  The preferred ethenoid polymer is polyvinyl chloride, others specified are polymers of vinylidene chloride, methyl methacrylate and isobutene and copolymers of vinyl chloride with vinylidene chloride and of isobutene with vinylidene chloride.  Preferably the dispersion treated contains 15-30 per cent by weight of polymer.  In the preferred method of carrying out the process the coagulant is added at room temperature and the temperature subsequently raised, e.g. to boiling point, for a few minutes. Preferably the aqueous phase is made weakly alkaline before coagulation.  The coagulant may act as a plasticiser for the product or may be removed by washing or distillation. Specification 523,208 is referred to.
Patent GB-854821-A (GB)
Title: Apparatus for providing a remote indication
Inventor: WORSWICK BERNARD AUGUSTINE
IPC: G08C19/02
Filed: 1957-01-29
Abstract: 854,821. Determining position of body photoelectrically. BAILEY METERS & CONTROLS Ltd. Jan. 27, 1958 [Jan. 29, 1957], No. 3133/57. Class 40(3). A movable body 315 (as illustrated, a flag attached to the pointer 305 of a moving-coil instrument), in accordance with its position, masks a portion of a slit 313 which is located in the light path between a photo-electric cell 329 and an illuminated rotating drum 341 formed with a plurality of windows 349 arranged along a helical locus. A train of electrical impulses is thereby generated for each drum rotation, the number of which depends on the length of slit exposed and hence the position of the body. The impulses serve to provide a remote indication, suitable transistor circuits for the local and remote stations being described with reference to Figs. 4 and 5 (not shown). The photo-electric cell is a photo-transistor. The drum is made by bending a flat strip in which the windows are produced photographically. Small departures of the windows from a straight line path are introduced, Figs. 6 and 7 (not shown), where it is necessary to allow for, or introduce non- linearities.
Patent GB-949888-A (GB)
Title: Yarn severing in circular knitting machines
IPC: D04B15/60
Filed: 1962-01-29
Abstract: 949,888. Knitting machines. SINGER - FIDELITY Inc. Jan. 29,1962 [Jan. 30, 1961], No.3222/62. Heading D1C. A rotary cylinder knitting machine comprises a relatively fixed cutter blade 31 spaced from the feed station in the direction of rotation of the needle cylinder and co-operating with the sinkers 16 to sever splicing ends as they are inserted into and withdrawn from action. As shown, the sinker ring 15 rotates with the needle cylinder 10 and the sinkers 16 are operated by a stationary sinker cap 17 which engages their butts 18. Overlying the Sinker cap 17 is a yarn guide ring 19 with a feed station 22 having seven yarn feed fingers 23. Yarn fingers 23-1 and 23-7 respectively feed the leg yarn Y and the splicing yarn S. When yarn S is withdrawn, it is severed by the blade 31 which is pivoted on cap 17 and is biased by spring 43 into engagement with projections 32 on sinkers 16. A suction tube 36 between feed station 22 and cutter 31 draws in the severed end. When finger 23-7 reinserts yarn S, the yarn is displaced downwardly to engage in the needles 11, the end of the yarn leading to tube 36 is severed close to the fabric and removed by suction. Specification 756,841 is referred to.
Patent GB-202268-A (GB)
Title: Improvements in sound transmitting devices for use in connexion with the use of telephone receivers
IPC: H04R1/10
Filed: 1923-02-03
Abstract: 202,268. Andersen, M. G. Aug. 8, 1922, [Convention date]. Earpieces and attachments. - A device by which a third person may listen to a telephone conversation consists of a member a, adapted to be placed in the ear to which a telephone receiver is held and connected by a flexible tube b to an earpiece c. The member a consists of a semicircular perforated disc, and is placed in the lower part of the external ear. The member a of a second apparatus may be placed within the earpiece c, or several tubes may be led from the one member a.
Patent GB-783550-A (GB)
Title: Method of forming fixing roots on blades for turbines and other fluid flow machines
Inventor: HOLLIS WILLIAM STEPHEN
IPC: B21K25/00
Filed: 1955-02-04
Abstract: 783,550. Making turbine and like blades; forging; jointing by forging. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Feb. 6, 1956 [Feb. 4, 1955], No. 3326/55. Classes 83 (2) and 83 (4). A method of forming a root on a turbine or compressor blade comprises forming an enlargement 1a on the blade wider than but approximately of the same volume as the desired blade root, inserting this enlargement in a cavity shaped to define the desired root form and compressing the enlargement to reduce it to the correct width and upset it to the shape defined by the cavity. The blades 1 with their enlargements 1a, Fig. 2, may be formed by the process described in Specifications 749,997 or 750,011. The blades are then inserted in a split die 2 with a root forming cavity into which the en. largement is upset by a pair of anvils 3 having recesses 3a for receiving surplus metal. A space for surplus metal may alternatively or additionally be provided in the die cavity. The anvils may form electrodes for the resistance heating of the enlargement prior to the upsetting pressure being applied. Alternatively the enlargement may be heated by electric induction heating; alternatively or additionally the enlargement may be preheated before insertion into the die. After upsetting, the blade is removed from the die and the flash is removed from the ends of the root. The root may be of undercut, key, bulbous or fir-tree form. In another embodiment, Fig. 3, the blade roots are formed and simultaneously secured in slots 5 in a rotor disc 4 by inserting the enlargements 1a into slots and electrically upsetting them therein by opposed anvils 3 driven by actuators 16. Locating members 13, 14 are provided for the blades. The anvils 3 which are provided with recesses 3a for surplus metal, are connected across the secondary of a transformer 17. An indexing mechanism 9, 12 is provided for the disc 4. To reduce or eliminate bending stress in the rotor during the upsetting, the empty slot or slots adjacent to the blade being upset may. be filled temporarily by an element inserted therein. Means may be provided for indicating the temperature of the enlargement, the pressure exerted by the anvils and the total movement of the anvils towards each other. The blades may alternatively be secured to a root block or fixing ring suitable for attachment to the rotor or stator of the turbine or compressor. A damaged blade in an existing machine may be removed and replaced by a blade formed in the die of Fig. 2, the new blade being secured in position in the rotor or stator of the machine by welding or brazing.
Patent GB-570550-A (GB)
Title: High tension transformers
IPC: H01F27/40
Filed: 1944-02-23
Abstract: 570,550. Transformers. MASCHINENFABRIK OERLIKON. Feb. 23, 1944, No. 3405. Convention date, March 15, 1943. [Class 38 (ii)] [Also in Group XXXVII] In transformers having a. tap-changing selector switch 5 located within the transformer vessel 1, in order to facilitate inspection of it, the switch 5 is fixed to one of the lead-in insulators 2 and is bodily removable therewith from the vessel 1. The connections from the selector switch 5 lead to contacts 8 on a cylinder 7 fixed to the switch 5, and during assembly, the cylinder 7 and switch 5 are inserted into the vessel 1 through a guide 11 and then rotated till the contacts 8 engage fixed contacts 9 connected to the transformer windings, a finger 12 indicating the precise position.
Patent GB-100178-A (GB)
Title: Improvements in or relating to Combined Labels and Holders for Brushes and other Articles.
IPC: B65D23/12
Filed: 1916-03-07
Abstract: 100,178. Soc. Anon. La Cellophane. March 16, 1915, [Convention date]. E x t c r n a l fittings; paint and like receptacles.-A label a for medicine or other bottles or containers, paint receptacles, ink. pots &c. is provided with an external socket or holder d adapted to receive an article such as a brush, syringe, spoon, pen-holder, a tool for opening the bottle &c., or a stopper for closing it. The socket may be formed by passing a tongue b at one end of the label through a slot c.
Patent GB-379620-A (GB)
Title: Improvements in the roller driving gear of spinning, doubling, twisting and similar machines for the production of irregularly spun yarns
IPC: D01H1/20
Filed: 1932-02-06
Abstract: 379,620. Roller gearing for spinning- machines. BROOKS & DOXEY, Ltd. and KERSHAW, W., Union Iron Works, West Gorton, Manchester. Feb. 6, 1932, No. 3571. [Class 120 (ii).] In roller gearing of the type adapted for intermittent acceleration of the speed of the back roller, the motion is effected by providing a second driving wheel H which is mounted on the crown wheel stud D, has a number of teeth missing, and drives the back roller A through intermediate gears h, h<1> and K, the normal and lower rate of drive being through the driving wheel E and wheel Ff which is held in engagement with the clutch member f<1> by a spiral spring. Whilst the higher rate of drive is being effected the clutch f, f<1> slips.
Patent GB-550132-A (GB)
Title: Improvements in or relating to apparatus for shearing strip material
IPC: B21D43/28
Filed: 1941-03-15
Abstract: 550,132. Shearing-machines. DAVY & UNITED ENGINEERING CO., Ltd. March 15, 1941, No. 3582. Convention date, March 16, 1940. [Class 83 (iv)] Apparatus for shearing strip metal or other material into predetermined lengths comprises a shear 16, means for feeding the strip continuously thereto, and means to lengthen its path of travel between the feeding means and shear while the strip is being cut. The strip may be fed by leveller rolls 6 and feed rolls 4 to a roll 31, driven by a chain 32 from the lower roll 4, round which it is guided by bars 38 until it passes backwardly between the rolls 31, 37, being then guided around this by rollers 41 which, with the roll 37, are mounted in a frame 36 pivoted on the shaft 34. The frame 36 is moved away from the shear during the cut by a link 46, lever 47, shaft 48, lever 49, Fig. 4, link 51, and eccentric 52 on the shaft 12 operating the shear. The extent of this backward movement is adjusted by means of a screw 53. In a modification the path-lengthening is less than the feed by the rolls 4 and the fixed and moving shear blades 22, 16 are carried by a frame 61, Fig. 5, pivoted on the shaft 12 which carries a second eccentric 68 which acts through an adjustable throw lever 66 to swing the frame 61 contrary to the movements of the frame 36.