baber/WOPTO huggingface dataset:
Patent GB-313075-A (GB)
IPC: H04B15/00
Filed: 1929-04-29
Abstract: 313,075. K÷r÷s, L. June 6, 1928, [Convention date]. Regulation, automatic.-In a battery-eliminator for supplying thermionic valves a potential drop in the anode supply circuit is produced by a series - connected non-ohmic conductor, or " baLance conductor, which varies its resistance so that the potential drop therein remains substantially constant between certain limits of the load and a similar device shunts the source of current. The balance conductor may consist of a discharge tube filled with rarefied gas, such as neon, with two or more electrodes cold or heated, or partly cold and partly heated, and forms an extremely small resistance for speech current modulations, which is independent of frequency. The balance conductor 16, Fig. 1, shunted across the source of supply 1, 2, which is smoothed by choke 14 and condenser 15, feeds on anode through connection 3 while balance conductors 19, 20 feed anodes through connection 17, 18, condensers 21, 22 being provided to reduce the a.c. resistance of the anode circuits for higher frequencies. The negative supply lead 2 is connected to a common filament lead 4. The three balancing conductors 19<1>, 20<1>, 16<1>, Fig. 3, for the anode supply, and another, 5, for grid potential supply, are connected in series across the mains. the conductor 5 being shunted by a potentiometer 6 with tappings 7 and 8 for grid potentials, while the conductors 19<1>, 20<1>, 16<1> act as a potentiometer and provide anode tappings at 3, 17<1>, and 18', 4 being the common filament lead. Condensers 9, 10, 21, 22, by-pass the highfrequency components of the anode current. For grid bias potentials above the working potential of a balance conductor, several of the latter may be in series, and may be arranged in a common container, as in Fig. 5. This arrangement may also be applied to the circuit of Fig. 3, while the balance conductors of Fig. 1, may be replaced by the multiple conductor 16, 19, 20 of Fig. 4, contained in one envelope.
Patent GB-782389-A (GB)
Title: Improvements in or relating to variable-speed transmissions
IPC: F16D67/00
Filed: 1955-05-09
Abstract: 782,389. Vehicle driving gear. BORG-WARNER CORPORATION. May 9,1955 [May 12, 1954], No. 13331/55. Class 79(2) [Also in Group XXIV] A power take-off from a five-speed and reverse truck transmission driven through a fluid coupling 15 (see Group XXIV), comprises a pinion 53, Fig. 4, splined on a shaft parallel to the main shafts and arranged on either side of the transmission, the pinion being movable into and out of mesh with teeth 52 on a planet-carrier 51 of the gear train which is driven in all ratios including neutral.
Patent GB-856514-A (GB)
Title: Improvements in or relating to closure rings for drums
Inventor: GILES ARTHUR JABEZ
IPC: B65D45/34
Filed: 1958-04-28
Abstract: 856,514. Stoppers. READS Ltd. July 20, 1959 [April 28, 1958], No. 13447/58. Class 125(3). [Also in Group XXV] A closure ring 13 which is U-shaped in crosssection has, a clip 16, with aperture 17, extending transversely of one end 14, a flexible auxiliary strap 18 with clip 21 and aperture 22, pivoted at both of its ends 19 to the outside of the base of the U of the closure ring, and another clip 16 with aperture 17 adjacent the end 15 in such a position that when the auxiliary strap lies along the outside of the closure ring the apertures in the three clips are aligned. A lid 12 is retained on a drum 10 by the closure ring. The limbs of the U extend inwardly from the base and one limb of the U overlies the periphery of the top of the lid and the other limb of the U lies under the bead 11 of the drum. The auxiliary strap, which is of substantially the same length between its pivots as the closure ring between the pivots when the ends of the closure ring abut, is pressed down until it lies along the closure ring and the apertures in the clips are aligned with one another. A fixing screw, pin, or piece of wire can be threaded through the aligned apertures and sealed with a tamper proof seal in the usual way. To remove the closure ring, the fixing pin, screw or piece of wire is removed from the clips and the outermost clip pressed upwards as far as it will go. A sharp tap with the palm of the hand on the auxiliary strap near one of its ends will release the closure ring and allow it to expand so that it can be easily removed.
Patent GB-269748-A (GB)
Title: Improvements in a motor driven washing and dyeing machine
IPC: D06B5/00
Filed: 1926-05-27
Abstract: 269,748. Perry, E. J. May 27, 1926. Washing-machines with rotary receptacles.- A reversible electric motor is selectively clutchable with gearing for oscillating the receptacle 5 within the stationary casing 1 or for swinging it bodily from the casing. To position the receptacle before swinging it, a brake, as described in Specification 268,176, may be manually set and automatically operated by the rotation of the receptacle itself. The receptacle is rotated in bearings carried by a. toothed quadrant 40 pivoted to the casing at 41. A lever 13<1> is linked to the brake and is manually actuated to release the brake and to close the motor circuit for rotating the receptacle, and is automatically operated through the linkage in the reverse direction to open the circuit on the application of the brake. A second lever 43 is provided to operate a clutch mechanism to disconnect the motor from the rotating means and to connect it to the gearwheel 59 meshing with the quadrant for swinging the receptacle. Switches 61 - - 63 control the motor during the swinging operation.
Patent GB-134962-A (GB)
IPC: F24F7/007
Abstract: 134,962. Ayrton, H. Nov. 21, 1918. Fans.-Relates to means for operating fan blades having a beating action against the ground or other surface, and used for the propulsion of air or other gases or liquids, as described in Specification 8541/15. The arrangement is such that the flap of the blade next to the handle strikes the surface first, this being followed by a rapid application of the remainder of the blade. In the arrangement shown in Fig. 8, the blade a is mounted on a red c pivoted at c<1> and connected to a manually-operated crank d by a. link c; the apparatus may, however, be power-driven, and other mechanism giving an equivalent motion be substituted The surface on which the blade impinges consists of a board or the like i carried by spring plates k, a second board being attached to the first by spring plates o. Figs. 10 and 11 show an arrangement by which a number of blades give a. continuous beating action on opposite faces of a casing of polygonal section formed of boards 5 carried by springs 4 and extended rearwardly by boards 6 attached to them by springs 7. The external faces of the boards may be covered by fabric or cushions. A pair of fans 17, 20 carried by arms 15, 19 pivoted on a transverse shaft 14 is operated by a link 23 and crank 24 driven by gearing in a gear-box 8. A similar pair of fans 18, 22 is similarly driven, the arrangement being such that the fans 17, 18 beat alternately on the under surface, and the fans 20, 22 on the upper surface.
Patent GB-976753-A (GB)
Title: Improvements in or relating to combinations of tractors with agricultural implements
IPC: A01D67/00
Filed: 1961-01-18
Abstract: 976,753. Rollers; haymaking machines; tractor power lift mechanisms. C. VAN DER LELY N.V. Jan. 18, 1961 [Feb. 8, 1960], No. 13536/64. Divided out of 976,752. Headings A1B, A1F and A1P. [Also in Division B7] An implement is connected to a tractor through at least two arms which allow the implement to pivot relatively to the tractor and which are inclined towards one another in the direction of the tractor travel. The arms may be the lift arms 12, 13, Fig. 3, the implement being connected by an A bracket pivoted to the lower arms and having a slotted connection at the upper end to allow pivotal movement, or the implement may be connected to the lift arms 31 and 32 Fig. 4, through a linkwork 33, 34, 35, 36, which allows pivotal movement downward movement being restrained by a spring 37 and restricted, for transport purposes, by a chain 38. Pivotal movement of the implement connected directly to the power lift links may be obtained by allowing the lift links free movement.
Patent GB-135400-A (GB)
IPC: D04B15/38
Abstract: 135,400. Spiers, W. March 5, 1919. Circular machines.-Provides means for mechanically drawing a length of splicing yarn 2 off the bobbin at the same time as the main yarn 6 is operating to carry in the cut end 2<a> of the splicing yarn. This facilitates the subsequent engagement of the yarn end by the needles, which are thus relieved of the strain of drawing the yarn from the bobbin. The invention may be applied to the splicing-mechanism described in Specification 19135/04. A carrier member 13 has sliding movements along rods 14 fixed on the post 15, between a yarn-guide 17 through which the yarn 2 passes from the bobbin, and another guide 18 through which it passes to the ground guide-block 3. The member 13 carries a pivoted gripper 21 which is connected to a pattern-controlled bellcrank 24 by a link, and is normally open to permit free passage of the yarn 2. When the operating connexions are actuated in the forward direction, the first effect is to close the gripper on the yarn 2, as shown in Fig. 3. The continued movement of the parts 24, 26 causes the block 13 to travel along the rods 14 and drawn yarn from the bobbin. This movement is timed to take place in such relation to the engagement of the end 2<a> brought about by the lowering of the yarn-guide 7 that the loose yarn supplied will be drawn in at once by the main yarn 6. After the block 13 reaches the end of its stroke, the parts 24, 26 reverse their movement and thus turn the gripper to release the yarn. The varn-drawing device may make a number of strokes in rapid succession.
Patent GB-1393842-A (GB)
Title: Wheel slip control systems for automotive vehicles and the like
IPC: G01P15/16
Filed: 1973-03-07
Abstract: 1393842 Pulse processing circuits WAGNER ELECTRIC CORP 7 March 1973 [10 March 1972] 13540/74 Divided out of 1393841 Heading H3T In the vehicle wheel braking system of the parent Specification, the brake pressure is relieved when a limiting deceleration is exceeded and not reapplied until a preset acceleration is achieved. As shown (Fig. 1), the angular velocity of two wheels are measured at 10, 16 and fed to a selector 22 which passes the lower signal v(t) to a differentiator 30 producing a rate of change signal a(t). The deceleration signal produced when the brakes are applied is compared at 32 with a reference value to pass on a pulse to OR gate 34, when the reference value is exceeded, and open gate 36, allowing the velocity signal v(t) to be fed to a unit 38, where the reducing v(t) signal is subtracted from v 1 , the initial v(t) signal reaching unit 38, and the difference v 1 -v(t) is compared with a variable reference signal #v from unit 40, which is inversely proportional to a(t). When the reference signal #v is the greater of the two inputs, a pulse is sent from comparator 38 to OR gate 42, to energize solenoid 46 and relieve the brake pressure. The deceleration signal a(t) then decreases until the output from circuit 32 is terminated, the gating elements 34, 36, 42 are closed after a delay determined by a timer 50, braking pressure is reapplied and the process is restarted. The timer 50 also inhibits the reapplication of braking pressure until the acceleration of the sensed wheel exceeds a reference value fed to comparator 54, in order to cope with wheel lock conditions produced by a road surface having a low coefficient of friction.
Patent GB-933290-A (GB)
Title: Improvements in or relating to rotary printers
IPC: B41J1/46
Filed: 1961-04-14
Abstract: 933,290. Typewriters &c. MITE CORPORATION. April 14, 1961 [Sept. 1, 1960], No. 13560/61. Class 100 (4). A printing machine having a rotary-type cylinder or wheel 14 in which the type elements 52, 54, 56 are rotatively mounted on the cylinder &c. so that they always face the printing hammer. Each row or line of characters are mounted on rods 16, 18, 22, 24<SP>1</SP>, alternate rods, e.g. 16, 22 having planet gears 28 meshing with a sun-gear 26 at the left of the cylinder and rods 18 &c. meshing with a sun gear 126 at the right of the cylinder. The sun-gears 26, 126 are coaxial with the type cylinder 14 and are rotated by a shaft 72 driven by a gear 42 on a jack shaft 38. This is rotated by a pinion 36 from an orbit gear 24, and a gear 32 driven from an electric motor 30. The orbit gear 24 houses the type rods 16, 18, 20 &c. and the gearing ensures that the faces of the type are always facing the print hammers and if there is any inaccuracy of the time of operation of the hammers a full impression will be still made. The apparatus is described in regard to a continuously rotating type-cylinder wherein each key 86-90 is wired to a contact sector operating in synchronism with the type-wheel so that when the appropriate type is in printing position a hammer magnet 102 is energized. The invention could be applied to machines in which the type-cylinder is rotated step-by-step and the cylinder is stationary for impression.
Patent GB-1046441-A (GB)
Title: Improvements in or relating to pusher devices for non-travelling conveyor tracks
Inventor: GIBSON ALAN
IPC: B65G19/22
Filed: 1962-04-09
Abstract: 1,046,441. Endless conveyers; roller conveyers; chains. WHITWORTH GLOSTER AIRCRAFT Ltd. April 9, 1963 [April 9, 1962], No. 13596/62. Heading B8A. For use with a non-travelling conveyer track system wherein a load 16 is supported on idler rollers (not shown) or other load-bearing conveyer track members, a first form of pusher device 11 (Figs. 3, 4), with rollers 14, attached to an endless chain 17 moves the load 16 until it engages an obstruction, whereupon the device 11 can rotate about an axle 20, lifting the load 16 slightly, and run freely underneath (Fig. 4). A second form of pusher device (Figs. 5, 6) comprises two pairs of links 21, 22 pivotally connected by a pin 23 carrying a roller 24. Rollers 25 on pivot-pins 26 are connected by tension springs 27 which allow the device to pass under an obstructed load 16 (Fig. 6). The pusher device 11 may be employed with pallets or loads which have their own rollers attached at their undersides (not shown), instead of running on a roller conveyer.
Patent GB-1048966-A (GB)
Title: Improvements in or relating to compressors
IPC: F04D25/16
Filed: 1964-04-02
Abstract: 1,048,966. Axial-flow and centrifugal compressors. MIROSLAV VLASAK. April 2, 1964 [April 3, 1963], No. 13613/64. Heading F1C. An axial-flow L.P. compressor and an axialflow or radial-flow H.P. compressor have separate shafts and casings, the common drive including step-up gearing so that the H.P. compressor runs faster than the L.P. compressor; an intercooler is provided between the compressors. Fig. 2 shows a compressor set comprising an electric motor 1 driving an axial-flow L.P. section 2 directly and driving a radial-flow H.P. section 40 through step-up gearing 3. An intercooler 5 is provided between the L.P. and H.P. sections, and one or more intercoolers 7 may be provided between stages of the H.P. section. A cooler may be provided beyond the H.P. section. The H.P. section may be of axialflow type and the motor 1 may be replaced by a steam or gas turbine. Both the L.P. and H.P. sections may be driven through step-up gearing, the speed of the H.P. section again being greater than that of the L.P. section.
Patent GB-909051-A (GB)
Title: A method for the emulsion-polymerisation of vinyl acetate alone and in a mixed polymerisation together with esters of unsaturated mono- and dicarboxylic acids
IPC: C08F2/22
Filed: 1959-04-22
Abstract: Vinyl esters are polymerized alone or together with esters of unsaturated mono- and dicarboxylic acids in an aqueous medium containing an emulsifying system which consists of 2-10% by weight of monomer of one or more non-ionogenic surface-active substances and 1-5% by weight of one or more weakly cationically active protective colloids.  Non-ionogenic surface-active substances specified are polyalkylene oxides and adducts thereof with long chain alcohols or substituted phenols, e.g. coconut oil alcohols, n-dodecyl alcohol and p-nonyl phenol.  Cationically active protective colloids specified are polyalkyleneimines, polyacrylamides, products obtained by partial or complete Hofmann's degradation of polyacrylamide and poly-N-vinylpyrrolidone, including mixtures of polyvinyl pyrrolidones of differing K-values.  Also present may be anionically active sulphonates.  The examples describe the homopolymerization of vinyl acetate and its copolymerization with vinyl butyrate, di-n-butyl maleate and di-n-hexyl maleate in processes which involve gradual addition of monomer to the reaction system and the addition of further quantities of the catalyst (potassium persulphate) as the reaction proceeds.
Patent GB-502300-A (GB)
Title: An improved jointing element for use in building and other constructional work
IPC: E04B1/68
Filed: 1938-05-07
Abstract: 502,300. Building - bricks ; steamboiler settings. HILTON,. R. B. May 7, 1938, No. 13686. [Class 87 (i)] [Also in Croup XIII] A brick 1 for taking up' play between old and new brickwork or between a boiler drum and an outer structure has projecting from one or more faces or ends a spring-pressed pad 4 e.g. of asbestos. The spring 3 seats in a cup 7 and, if desired, over a projection 6.
Patent GB-295968-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/56
Filed: 1927-05-21
Abstract: 295,968. Reyrolle & Co., Ltd., A., and Coates, F. May 21, 1927. Fusible cut-outs.-A fuse in which a cartridge C is held between contact grips B, B<1> carried by a handle-member A has one or both of the contact blocks slidable relatively to the handle A, a bracket E being attached to the handle and carrying a screw F by which the block B<1> is adjusted, and a spring or spring-washer G being interposed. In a modification the block may be guided on the bracket by interacting ribs and grooves and the end of the screw abuts against the block B<1> through the medium of a spring &c. The blocks B, B<1> coact with resilient contacts on the fuse-board.
Patent GB-712047-A (GB)
Title: Improvements relating to the manufacture of reinforced plastic material
Inventor: HESTER FRANK CHARLES
IPC: B29C70/22
Filed: 1951-06-08
Abstract: A reinforced plastic material which may be moulded or laminated comprises as reinforcement chenille threads each consisting of a twisted metal core in which is seized a textile yarn.  The yarns may form the warp or weft or both of a woven fabric, the non-chenille warp or weft, when present, being of plain metal wire.  The metal may be steel, and the textile threads may be wool, cotton, asbestos, fibre-glass, or polyvinyl chloride threads.  The plastic material may be polyvinyl chloride, a polyester, a phenol-, urea-, or melamine-formaldehyde resin, and the product may also comprise a porous layer of plastic material such as foamed polyvinyl chloride, phenol-formaldehyde, allyl, or polyester resin, expanded rubber, protein, or calcium alginate on a surface, or between two layers.  A conveyer belt may be made by impregnating and subsequently coating once or oftener with polyvinyl chloride paste a fabric with warp and weft of chenille yarn comprising cotton yarn seized in stranded steel wire, the polyvinyl chloride paste being heated after each application, and the layers being smoothly rolled out in the final stages and curved, e.g. by a high frequency induction heater.  A moulded article is made by pressing into a female mould a fabric woven from chenille yarns comprising stranded ductile steel wire and cotton yarn, pouring in a polyester resin composition containing benzoyl peroxide, re-pressing to force the resin evenly over the whole area of the mould, and heating to cure the resin.  The resin may be cured by high frequency electric heating and may contain a sintered metal powder as metal oxide as filler.
Patent GB-951071-A (GB)
Title: Improvements in or relating to electric heat storage livestock brooders
IPC: A01K31/19
Filed: 1961-04-17
Abstract: 951,071. Electrically heated livestock brooders. G. T. CHURCH. April 16, 1962 [April 17, 1961], No. 13738/61. Heading H5H. A bed of material forming the floor of a brooder is heated by a heating element contained in a rigid U-shaped tube of porcelain or non-fibrous glass buried in the material with its ends accessible without disturbing the bed. Glass U-tubes 5C and C for " off-peak " and " tapping-up " heating respectively, are buried in the concrete or sand bed 7 with their ends projecting into bus-bar chamber 8, whereby the elements may readily be replaced. Bed 7 is surrounded by asbestos or glass wool, or nylon, thermal insulating slabs 12 enclosed within polythene sheets 13A, 13B, and the brooder canopy 14 is of adjustable height. Element 6 may be thermostatically controlled.
Patent GB-528918-A (GB)
Title: Improvements in or relating to fuzeheads suitable for use in electric blasting detonators and electric fuzes, and for similar purposes
IPC: C06B43/00
Filed: 1939-05-08
Abstract: 528,918. Electric fuzeheads; explosives. INGRAM, L. K., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 8, 1939, No. 13742. [Classes 9 (i) and 9 (ii)] A heat-sensitive ignitable composition to form the bead in high or low-tension electric blasting fuzes, comprises a binder and an aromatic compound having a nuclear bound iodine atom attached to at least one terminal oxygen atom and exploding within five seconds at a temperature not exceeding 300 C. Preferred compounds for low-tension fuzeheads are metaiodoso-azidobenzene, para-iodoxy-azidobenzene, para-idoxy-toluene, and meta-iodoso-iodobenzene; and for high-tension fuzeheads, paraiodoso-azidobenzene, para-iodoxy-azidobenzene, and meta-iodoso-iodobenzene. A solution of nitrocellulose in amyl acetate forms a suitable binder. In the case of high-tension fuzeheads in which there is no resistance wire, an electrically conducting substance, such as graphite, is included. Ingredients adapted to increase the flash characteristics ; such as metal powders, potassium chlorate-charcoal mixtures, basic lead salts of certain polynitro-phenolic compounds, may be included. Alternatively, or in addition, such ingredients may form an outer coating of the bead. The explosion point of the compound is determined by dropping a copper detonator tube containing 0.005gm. of the substance into a bath of molten low melting-point alloy and noting the time required for the substance to explode. Several examples of beads are given.
Patent GB-892115-A (GB)
Title: Improvements in or relating to projectors, viewing apparatus and the like, and cut-out sheet for their construction
Inventor: LACROIX WILLIAM AMEDEE
IPC: A63H33/22
Filed: 1958-04-30
Abstract: 892,115. Optical projection and viewing apparatus. EDITIONS LACROIX & LEBEAU. April 30, 1958, No. 13757/58. Class 97(1). A prepared sheet of cardboard or similar sheet material is folded to form a rectangular box as part of optical projection or viewing apparatus, a transparency being inserted from the side and located in the vicinity of the front of the box. In the viewer shown in Fig. 2 the rectangular box 1 is folded from a single sheet, the sides and top being shaped to form a hood surrounding a viewing aperture 5 in the front face past which the film is pulled through a guide 21, made from overlapping cardboard sheets and inserted through slots in the side faces. Additional cardboard strips are provided to secure an electric torch 9 to shine through a hole 8 in the bottom of the box. Various parts of the projector shown in Fig. 4 are bent from separate sheets. These comprise the lamphouse 23, the base 29 with ventilating holes 29<SP>1</SP>, the cover 28 and a bracket 30 secured to the front of the lamphouse to receive a sliding lens mount 31 similarly constructed. The lens is secured by apertured sheets within the mount. Slots in the top and sides of the bracket 30 guide a picture carrier 35 in a guide 34. The carrier is formed from superposed sheets apertured to provide slide' pockets.