baber/WOPTO huggingface dataset:
Patent GB-1012549-A (GB)
Title: Improvements in and relating to a magnetic head assembly
IPC: G11B5/465
Filed: 1964-02-03
Abstract: 1,012,549. Magnetic recording head arrangements. AKAI ELECTRIC CO. Ltd. Feb. 3, 1964 [Feb. 7, 1963], No. 4412/64. Heading G5R. A biasing head is pivotally mounted for movement between a non-operative position and an operative position opposite a record head and is arranged to operate a switch when moving from its operative to its non-operative position, the switch being adapted to remove the bias from the head after a predetermined time lag from the initiation of the pivotal movement so that residual magnetism in the record head is removed. Referring to Fig. 5, during playback the tape 11 passes over erase and playback heads 12 and 14, but does not engage the record head 13 and its associated guides 16 and 17. For recording, the bias head 28 is rotated from the position shown so that guide members 29 and 30 guide the tape round the head 13. The position of the bias head is determined by an adjustable stop 31 which engages a fixed stop on a bracket 32. The means for rotating the bias head may comprise a plunger coil 19a, Fig. 4, adapted to move a plunger which rotates a bell-crank 23 which carries a segmental gear 24 engaging a pinion 25 connected to a pair of members such as 27 carrying the head 28. When the coil 19a is de-energized the head 28 falls back under its own weight and the bell-crank 23 operates a microswitch 53 which removes the bias from the head. The switch 53 requires appreciable movement to operate it so that there is a delay between de-energizing coil 19a and the removal of bias from the head 28. The head 28 may be movable manually instead of by coil 19a.
Patent GB-495756-A (GB)
Title: Improvements in and relating to the annealing of metal sheets
IPC: C21D9/46
Filed: 1937-02-15
Abstract: 495,756. Annealing metal sheets. LOEHR, W., and RASSELSTEINER EISENWERKGES. AKT.-GES. Feb. 15, 1937, No. 4421. [Class 72] In order to reduce the formation of scale on metal sheets and to make the scale formed on the sheets more flexible the metal sheets after annealing in the uncovered state in a furnace and being brought up to red heat are kept, while they are being stacked, at an even high temperature, e.g. 700-800‹ C., in all their parts and particularly their edges by means of heated walls, the stacked sheets being then covered with a cover and cooled down as in the box annealing process. The heated walls may be constructed of separate sections which can be assembled in sizes suitable for various sizes of sheets. The heated sheets from a furnace are piled by tongs z on a raised plate f mounted on a table e and arranged between walls a heated by burners b. As the pile grows the table e is lowered so that the top sheet is always at the same height, and when the pile is approximately the height of the walls a the table e is lowered until the plate f rests on a carriage l. The door r is now opened and the carriage is moved out on rails p under a platform and the pile d covered with a box of cast steel or sheet metal. The empty carriage with the plate f<2> is now moved into the position indicated at l<2>. The door q is now opened and by means of a lifting device o the rails m are raised and turned about the pivot n so that the carriage l<2> can cruise into the position previously occupied by the carriage l. The tongs z are suspended at the point v from a carriage w and to prevent heat being radiated from the upper sheet of the pile d of sheets, a heated insulated arched cover g is suspended over the sheets as near as possible, resting on the walls a at h. The parts v of the tongs z pass through slots x in the cover g.
Patent GB-226068-A (GB)
Title: Electric cooking- and baking apparatus
IPC: A47J37/06
Filed: 1924-02-21
Abstract: 226,068. Mayer, F. Feb. 21, 1924. Resistance ovens.- An electric cooking and baking apparatus comprises a heating element c disposed within a. parabolic cup or reflector a combined with a concave cover or lid e, the heat being transmitted to the plate f or the like which is to be heated in the enclosed space thus formed partly directly and partly by reflection from the cup a or cover e. The cup may either be inverted with the plate f standing on the cover e as shown in Fig. 1. or for stronger heating, the cup may be turned upright on its foot b, in which case the plate f is supported on brackets g, as shown in Fig. 2, and receives heat reflected downwardly from the cover e. Specification 186,449 is referred to.
Patent GB-799645-A (GB)
Title: Shut-off valves
IPC: F16K1/04
Filed: 1956-02-13
Abstract: 799,645. Pressure gauges. SULZER FRERES SOC. ANON. Feb. 13, 1956 [Feb. 26, 1955], No. 4493/56. Class 106 (2). [Also in Group XXIX]. A pressure measuring or indicating instrument is connected to the wall 15 of a pressure measuring chamber by a shut-off valve comprising a movable valve member 3 with passages 4, 5 connecting the outer end of the member with a point above the valve head 17, and a connecting element 1 for connection to the instrument, the element having a bore in which the valve member is mounted and a screw thread 7 to produce axial movements of itself and the valve member. The valve member 3 may be rigidly connected to the element 1 as by welding but as shown is loosely retained therein by a ring nut 10 on the reduced outer end of the valve member 3 and an inturned flange 8 on the connecting element. The latter has threads 6, 7 of opposite hand or of different pitch. The thread 7 is a tighter fit in the valve body 2 than the thread 6 is in the instrument so that the connecting element will not rotate in the valve body while the instrument is being screwed on. The valve body is screwed at 14 into the wall 15 of the pressure chamber and has a shoulder 18 to limit the downward movement of the connecting element. The element 1 has a hexagonal flange or a round flange 12 with recesses 13 to facilitate its rotation.
Patent GB-176234-A (GB)
Title: Improvements in or relating to collapsible meat safes, or covers
IPC: A47B71/00
Filed: 1921-02-08
Abstract: 176,234. Berthon, W. H. M. Feb. 8, 1921. No Patent granted (Sealing fee not paid). Covers for plates, dishes, and the like.-A collapsable meat safe or cover comprises a base ring a, preferably elliptical; ear plates b having pivot holes d for radial ribs c over which the fabric h is secured. The central ribs c are pivoted in merged holes d and are provided with catches e formed integrally or secured thereto, which catches hold in combination the two halves of the collapsable cover. The base ring a consists of bent wire, the ends of which terminate and are held within the plates b which are bent over to grip the base ring a. The covering may be permanent or detachable, and of net-like or ornamental fabric.
Patent GB-745534-A (GB)
Title: Improvements in and relating to three-phase electric transformers and to laminated magnetic cores therefor
Inventor: BEDIL MUSTAFA FAHRETTIN
IPC: H01F27/245
Filed: 1953-02-18
Abstract: 745,534. Transformers. ENGLISH ELECTRIC CO., Ltd. Feb. 12, 1954 [Feb. 18, 1953], No. 4515/53. Class 38 (2). A laminated magnetic core comprises three winding limbs and two flux return paths, each of the three winding limbs having a cooling duct therethrough which extends throughout its length and across it at right angles to the plane of the laminµ. Each limb is formed by two sets of laminae such as 1a, 2a, which are arranged in a parallel relationship but which are staggered lengthwise by a distance equal to the width of the yoke 7c 'or 9c and which are arranged to have a space between them to form the cooling duct. To achieve full interleaving of the limb laminµ with the yoke laminµ, further groups of laminµ are provided as illustrated in Fig. 1B, wherein the butt joints between the respective laminµ occur at different positions to the corresponding joints of the group shown in Fig. 1A so that when the two groups are assembled the joints in the group according to Fig. 1B occupy the dotted positions shown in Fig. 1A. In another embodiment the ends of the laminµ may be cut at an angle to take advantage of laminar material which has a preferred magnetic direction. The Provisional Specification describes a singlephase magnetic core having one only winding limb and two flux-return paths.
Patent GB-1465218-A (GB)
Title: Acoustical energy attenuation apparatus and method
IPC: F01N1/10
Filed: 1975-02-03
Abstract: 1465218 Silencers DONALDSON CO Inc 3 Feb 1975 [15 Feb 1974] 4519/75 Heading F1B A method of attenuating acoustic energy in the form of sound waves present in a travelling fluid which comprises (a) passing the fluid into a chamber; (b) directing at least a portion of the fluid through a porous packing in the chamber, said packing comprising coiled ribbon like strands in which the volume of air or void contained within the boundaries of the packed volume is 94 to 99% of the total volume of solid material plus air or void and which interacts with the fluid to attenuate the acoustic energy of the fluid; and (c) passing the fluid out of the chamber. A silencer comprises an elliptical shell 12, inlet tube 24, outlet tube 28 and intermediate tube 26 which are supported by baffle plates 32, which together with end-plates 14 and 16, form secondary chambers 30 and 36. The space around the tubes contains stainless steel tape wound into helical coils. Holes, #- inch diameter, in the tube  walls allow gas to pass through the packing. The total area of the holes is 5-50% of the tube wall area. The porosity of the packing is defined as the ratio of volume of air or void to the total volume, and is 0À94 to 0À99. The steel tape is 0À001-0À005 ins. thick, 0À005-0À030 ins. wide and the coils are #-# ins. diameter. The reversal of the direction of gas flow in the chambers 30 and 36 causes attenuation by interference. In a modification, Fig. 3, inlet pipe 50 leads into chamber 54, separated from chamber 54a by a perforated plate. A perforated outlet tube extends diametrally across chamber 54a which contains a stainless steel tape packing.
Patent GB-882748-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D21/12
Filed: 1958-02-12
Abstract: 882,748. Shoe upper conforming machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. Feb. 12, 1958 [Feb. 14, 1957], No. 4528/58. Class 17(1) In a toe lasting machine having operatoractuated means 34 (not shown), 30 to move the wipers 26 heightwise and for advancing and closing movements, operator-controlled poweroperated means are provided to assist in these operations. Wipers 26 are mounted on a carrier 28 which is adjustable angularly about a longitudinal axis within frame 54 by means of handle 52, frame 54 being slidable longitudinally in guide member 56 by means of handwheel 70, and member 56 being pivoted about cross-shaft 58 (not shown). The wipers are advanced and closed by swinging arm 30 which moves rod 50 axially, and moved lengthwise by operation of treadle 34 which acts via rod 110 to swing member 56. Rotation of handle 32 by the operator acts via cam 184 and plungers 198, 204 to operate regulating valve 208 which controls the fluid pressure operated device 142, and the latter acting via bell-crank 82 moves rod 50 to advance and close the wipers. Similarly depression of plunger 210 into handle 32 acts via lever 212 to operate valve 222 which controls a fluid pressure operated device 162, the latter acting via bell-crank 120 to move rod 110 which moves the wipers heightwise. The fluid control system is illustrated in Fig. 8 and includes a pressure regulating valve 232, a valve 236 operated manually by handle 238, flow control valves 300, 424, and quick release valves 306, 330. Bedding down pressure may be applied by manual operation of button 364 of valve 356 which actuates the pilot operated two way valve 327 to connect the main pressure line to valve 330, and released by operation of valve 358 by means of button 366. Rotation of handle 32 also operates microswitch 436 which energizes solenoid 423 and so actuates valve 422 to operate piston 432, and the latter moves cam 412 to lock the upper part 112 of rod 110 between friction plate 406 and locking plate 408 and so lock the wiper head against heightwise movement during overwiping. Last pin 22 and heel abutment 24 carried by frame 458 are adjusted laterally, heightwise, and lengthwise of the shoe by handwheels 516, 524, and 528 respectively. Heel abutment 24 is adjustable about horizontal pin 532, being secured by spring plunger 534, and is adjustable heightwise in guides 538 and clamped by screw 539. The shoe is clamped against toe rest 20 by moving the last pin rearwardly to engage the heel of the shoe with abutment 24, such movement of the pin being brought about by a fluid pressure operated device 550 which swings lever 452 carrying pin 22 about pivot 454.
Patent GB-317378-A (GB)
Title: Improved method and apparatus for reworking finely divided metal particles
IPC: C22B21/00
Filed: 1928-02-13
Abstract: 317,378. Schmeller, J. Feb. 13, 1928. Metal-heating furnaces; charges, agitating.- Apparatus for re-melting finely divided metal such as aluminium comprises melting-chamber 2 fitted with a vertically reciprocated agitator 31 and communicating, through a passage.4, with a second chamber 3 in which the molten metal is maintained at casting temperature and from which it is drawn off as required through the tapping spout 16. The furnace is heated mainly by a burner disposed in the upper part of the chamber 3, auxiliary burners, for use when required, being provided in arched flues 6, 7 below the chambers 2, 3. Water troughs 17, 18 into which skimmings are dropped, are arranged along each side of the furnace, the separated metal thus obtained being mixed with the finely divided stock which is charged at intervals into the chamber 2 through the opening 11. The apparatus may comprise a row of chambers 2 separated from a corresponding row of chambers 3 by a wall 5, the partitions between the several chambers of each row terminating slightly above the level of the charging and skimming doors 12, 14. The agitator comprises a grid secured to a vertical rod 37 by means of wedges 42, Fig. 6, which have projections 39 to engage in recesses 38 in the rod and are formed with inclined outer faces which contact with the sides 36 of an upwardly tapering hole in the boss 32 of the grid. The rod 37 is protected by a casing 40 enclosing fireclay. The operating mechanism for the agitator comprises lifting and lowering cables 52, 54 extending round fixed pulleys 55, 56 and passing in opposite directions to sheaves 58 which are mounted on a shaft 59, oscillated by an electric motor 62, a clutch being provided in connection with each pair of sheaves 58. In order that the position of the agitator within the chamber 2 may be adjusted, the cable 52 is passed round a pulley 81 secured to pivoted arms 82 which carry at their free end a nut 83 adapted to be raised and lowered by the rotation of a screwed rod 84 having an operating handle 85 at the lower end. A spring 71 is inserted in the cable 54 while the cable 52 carries a counterweight 72 which is guided on rods 77 and cushioned at the ends of its travel by springs 78 on the rods 77 and springs 74 carrying a bar 73.
Patent GB-718297-A (GB)
Title: Improvements relating to ejector pumping apparatus
Inventor: MCLEMAN GEORGE ANDREW
IPC: F04F5/46
Filed: 1952-02-20
Abstract: 718,297. injectors; vacuum cleaners. HUWOOD COMPONENTS, Ltd. Jan. 27, 1953 [Feb. 20, 1952], No. 4539/52. Classes 8 (1), 8 (2) and 71. In a compressed gas operated injector comprising a jet needle 25 located within the working nozzle 28 and an obturating cone 24 in the throat 17 through which induced gas passes e.g., dust-laden air drawn into vacuum cleaner casing 1, the needle 25 and cone 24 are mounted on a common stem 23 extending to the outside of the apparatus and having a knob 37 capable of being lifted axially against a spring 41, turned and released to alter the axial position of the stem 23 in a number of definite steps. The knob 37 carries a pin 39 which extends into one of several bores of different depth provided in a boss 35, or the pin may be carried by the boss and extend into bores within the knob. Alignment of the needle 25, cone 24 and knob 37 is facilitated by forming the needle in two sections connected by a coil spring 45, and the ratio of the effective cross-sectional area of the jet 28 and the throat 17 is maintained constant. The casing 1 has a detachable preliminary dust separator 6 below a filter bag 11 supported by a tubular framework 12, 46, 47, through holes 48 of which a reverse flow of air is supplied to clean the bag 11.
Patent GB-264676-A (GB)
Title: A new or improved portable bathing raft
IPC: B63B35/74
Filed: 1926-02-17
Abstract: 264,676. Callund, H. Feb. 17, 1926. Rafts.-A portable raft comprises a pair of longitudinal bearer bars a either in one length or adapted to be folded. The bars are connected at either end by transverse bars c<1> on the underside of which are secured spaced strips which fit over the longitudinal bearer. Inflatable air bags e are provided with tapes d which are looped over the longitudinal members. A canvas seat is provided with loops which permit the seat to be suspended from the longitudinal member to form a seat either above or below water, level according to the degree of slack allowed.
Patent GB-422662-A (GB)
Title: Improvements in and relating to sliding clasp fasteners
IPC: A44B19/04
Filed: 1934-02-12
Abstract: 422,662. Sliding - clasp fastenings. WINTERHALTER, M., 23, Hohenstaufenstrasse, Barmen, Wuppertal, Germany. Feb. 12, 1934, Nos. 4589, 4590, and 4591. Convention dates, Feb. 10, 1933, March 3, 1933, and March 7, 1933. [Class 44] The slider of a sliding-clasp fastener consists of a single plate a and the usual wedge member b with the plate and wedge member shaped to engage with correspondingly shaped portions on two sides of the interlocking elements. The outer face of the elements may be covered with leather or fabric, or hidden by a flap. The upstanding side walls of the back plate and the wedge may have flanges d, e, engaging recesses f in the elements, Fig. 5, or may be inclined as shown in Fig. 8 to guide and support the dove-tail elements, or may be formed as shown in Fig. 15 with shoulders m<1> and recesses d' to engage the ends of the clamping legs m of the elements and the projections f<1> on the sides of the elements. The clamping legs lie obliquely and to permit the elements being used for both the stringer tapes the projections and recesses by which the elements are locked together are arranged in pairs on both the upper and lower faces as shown at s, Fig. 21. The slider shown in Fig. 25, has a chain pull t to withdraw a spring v which normally locks the slider by engaging the elements.
Patent GB-143958-A (GB)
Title: Improvements in or relating to electro mechanical pocket lamps
IPC: F21L13/08
Filed: 1919-02-24
Abstract: 143,958. M÷ller, K. K. Krag-. Feb. 24, 1919. Dynamo lamps. - A ring forming the casing carries a number of internal radial projections 2 formed with portions 3 at right-angles to the projections 2. A second ring 4 within the first ring carries a second series of similar projections 5, 6 which alternate with the projections 2, 3 and form with them an annular space which is filled with a coil 7. Rotating within the coil 7 is a permanent magnet system consisting of two steel disks D<1>, D<2> having radial arms 11, 13 formed with flat portions 12, 14. The disks D', D<2> are fast on a rotatable hub 28 mounted on a pin 8 secured at one end to the side 16 of the casing. The other end of the pin 8 carries a removable nut 9 which secures the other side 17 of the casing in position. The operating-mechanism consists of a train of wheels, the last one 24 of which engages a rack 23 on an irregularly-shaped lever 18 pivoted to the casing at 19 as shown in Fig. 3. The lever 18 is actuated by a presser 20 and is returned to its initial position by a spring 29. A pawl and ratchet allow the magnet system 11 to continue its rotation in one direction during the return movement of the lever 18, and a storing- spring may be provided.
Patent GB-313541-A (GB)
Title: Improvements in and relating to the manufacture of complex metallic salts
IPC: C07F9/90
Filed: 1928-02-14
Abstract: 313,541. Carpmael, A., (I. G. P'arbenindustrie Akt.-Ges.). Feb. 14, 1928. Complex metallic compounds of aromatic oxyacids.-Complex metallic compounds prepared by the interaction of a metallic oxide with an aromatic compound containing at least two hydroxy groups and an acid substituent, such as those described in Specifications 213,285 and 295,734, are subjected to oxidation, whereby products having a different biological action are obtained. Hydrogen peroxide, magnesium peroxide and sodium persulphate are mentioned as oxidizing agents; elementary oxygen may also be used. According to the examples, potassium antimony pyrocatechin disulphonate is oxidized with hydrogen peroxide, potassium stannic or manganese pyrocatechin disulphonate in aqueous solution with air, potassium antimony pyrogalloi disulphonate with hydrogen peroxide, the n-diethylamine salt of antimony protocatechuic acid (prepared by heating protocatechuic acid in ndiethylamine with antimony oxide) with hydrogen peroxide, and sodium tin protocatechuic acid in aqueous solution with air. According to the Provisional Specification, complex arsenic, cadmium, iron, zinc, chromium, vanadium, copper, gold, calcium and lead compounds of the kind specified can be oxidized in an analogous manner.
Patent GB-829606-A (GB)
Title: Improvements in and relating to babies' feeding bottles and to teats therefor
IPC: A61J11/00
Filed: 1958-02-12
Abstract: 829,606. Infants' feeding bottles. HARTMANN, G., [trading as NURNBERG-GUMMI E. HARTMANN.]. Feb. 12, 1958 [Nov. 23, 1957], No. 4650/58. Class 66. A baby's feeding bottle a of the type having a reversible teat d and comprising a pressure member i.e. screw cap b with or without cover disc c, is characterised in that the annula flange of the teat ha a thickened edge portion and either the pressure member or the upper end f of the bottle neck or each of these parts has or have a corresponding annular groove. The thickened edge of the teat flange is shaped as at i in Fig. 2 and the parts b and c are grooved respectively at I and m. In a modification, Figs 4 and 5 (not shown) the upper end f of the bottle neck is similarly grooved. In a further modification, Fig. 6 (not shown) and Fig. 7, the edge portion of the teat is wedge-shaped in cross-section as at k, and the screw cap b, cover disc c and upper end of the bottle neck are shaped correspondingly. The invention aims to prevent the teat being pulled out of position.