baber/WOPTO huggingface dataset:
Patent GB-1485941-A (GB)
Title: Wheel speed sensor
IPC: H02K21/38
Filed: 1976-03-01
Abstract: 1485941 Measuring angular velocity electrically BENDIX CORP 1 March 1976 [20 March 1975]  08119/76 Heading G1N [Also in Division H2] A tachogenerator for measuring the angular velocity of a shaft comprises a toothed wheel 1, Fig. 1, rotating with the shaft, associated with a pick-up unit 5 having a permanent magnet 11 mounted on a U-shaped member 15 and a central polepiece 7 surrounded by a coil 13. To minimize the variations in signal strength induced in coil 13 due to variations in spacing between the wheel 1 and pick-up unit 5, the polepiece 7 is made of square loop magnetic material and shaped so that its normal flux density is just below saturation when the air-gap between the wheel and the pickup unit is maximum. If the air-gap is reduced, the pole 7 goes into saturation and takes more of the MMF of the permanent magnet 11, reducing the MMF across the air-gap and tending to maintain the signal in coil 13 at a constant level. To provide compensation for changes in the saturation flux density with temperature, a layer 21 of magnetic material having a desired Curie temperature is located in the magnetic circuit, e.g. as shown, between the polepiece 7 and the magnet 11.
Patent GB-1345106-A (GB)
Title: Rotary hearth calciner having stationery soaking pit
IPC: F27B9/18
Filed: 1972-02-22
Abstract: 1345106 Rotary hearth furnaces MARATHON OIL CO 22 Feb 1972 [28 April 1971] 8167/72 Heading F4B A rotary hearth furnace which comprises a material inlet duet 3,1, rabbles 35 for moving the material towards the centre of the hearth and a material outlet 60 at the centre of the hearth, is characterized by having situated beneath the material outlet a soaking pit 61, which remains stationary when the hearth rotates and which is provided with detention means for delaying the passage of material through said soaking pit 61 for a controlled length of time. As shown, the detention means comprises a sliding gate 64, but it may comprise two sets of horizontally disposed grate element, one being capable of moving reciprocally with respect to the other.
Patent GB-125138-A (GB)
IPC: G05D16/18
Filed: 1916-06-09
Abstract: 125,138. Menchen, J. June 9, 1916. No Patent granted (Sealing fee not paid). Safety valves; closure members. - A relief valve for fluid-pressure containers has a hollow spindle which acts as an inlet to the container, and is fitted with a second valve adapted to interrupt the supply when the relief valve opens. The relief valve member has a chamfered face b<1> and a cvlindrical face b, and is formed with a hollow spindle, one part of which extends upward into the inlet chamber g, while the lower part is loaded by a spring d. The lower part is formed in two sections joined together by a sleeve m provided with outlet apertures c<2> and fitted with a spring-loaded ball check valve l to prevent a return flow from the container. The check valve may be dispensed with. As the relief valve member lifts, the part c<1> of the spindle passes into a flange i' on the casing, and at the same time a seat formed on the end of the spindle engages a spring-loaded lift or ball valve i arranged in the upper part of the casing. The upper part of the spindle may be provided with grooves to enable it to act as a piston valve. The valve member is protected from dirt by a spring- pressed cover k slidably mounted on the hollow spindle. In a modification, the cover is formed integrally with the valve member, and is arranged to work in conjunction with a flange on the casing. The valve member may have a second face adapted to close the relief outlet at the extreme movement of the valve and so prevent undue loss from the container.
Patent GB-198486-A (GB)
Title: Improvements in machines, or apparatus, for wrapping tablets of confectionery, or the like, in foil, or other wrappers
IPC: B65B25/00
Filed: 1922-03-21
Abstract: 198,486. Rose, W., and Rose Bros. (Gainsborough), Ltd. March 21, 1922. Packeting by wrapping-up.-Relates to machines for wrapping tablets of confectionery &c. in metal foil &c., and of the type in which folding operations take place in a rotating mould wheel so that partially folded portions of the wrapper at each end of the tablet are caused to project as triangular tabs. According to the invention, a machine of this type is provided with a delivery channel having folders at each side for folding the triangular tabs in succession upon the underside of the tablet. Ejecting fingers are provided which remove the partially wrapped tablet from the mould wheel during periods of rest and make the return stroke during the periods of intermittent rotation; and a resilient pad is provided to press the wrapper into close contact with the tablet. Tablets 19, Fig. 1, are fed into the machine by a plunger 24 and carry a wrapper with them between members 16, 17 constituting open ended pockets, three sides of the tablet being thereby enclosed. One or both of the members 16, 17 may be provided on their bearing surfaces with curved ribs 22 or other configurations, so that when recessed tablets are being wrapped, the ribs bear only upon the stronger edge portions. The members 17 are pressed inwardly by springs 21, the movement being limited by stops 23. A curved guide plate 39 folds the wrapper over the fourth side of the tablet, and folders 42, 42<a>, Figs. 1 and 6, make the end folds shown in Fig. 6. Stationary folding plates 49<a> turn down the folded end portions and the tablet arrives in position opposite a delivery channel 50. Ejecting fingers on bosses 53<a> advance and push the tablets into the channel when the mould wheel 1 is at rest and retire during the periods of rotation and after the parts 16, 17 have passed out of the line of motion. A! part 73, Figs. 1 and 8, of the bottom of the channel is mounted on an arm 74 pivoted at 75 and pressed in position by a spring 77. This part 73 folds the outstanding part of the side of the wrapper on to the bottom of the tablet, and grooves 80, 81, Fig. 9 fold up the end tabs in succession on to the bottom of the tablet. A guard plate 65<b> rests on the tablets in the channel and is kept in position by a screw 70. The completely wrapped tablets are pushed forwards by succeeding tablets past rubber or other rollers 82<a>, which bear on the opposite edges, and arrive in another channel 89 beneath a vertically reciprocating pad 99 which presses the wrapper into close contact with the tablets.
Patent GB-762694-A (GB)
Title: Moulded interlocking slates
IPC: E04D1/34
Filed: 1954-03-22
Abstract: 762,694. Roofing tiles. LANG, E. G., and LANG, C. T. March 18, 1955 [March 22, 1954], No. 8255/54. Classes 20(4) and 87(1) An aluminium or plastic roofing tile A is formed with two lugs B near the lower end of its undersurface and with two slots C near the upper end to receive the lugs of overlapping tiles. The tiles are secured to the roof by rods H passing through holes in the lugs, the rods screwing into lugs on T-bars. Corresponding ridge tiles are provided having lugs but no slots.
Patent GB-117444-A (GB)
Title: Improvements in Processes and Apparatus for the Reduction of Ores.
Inventor: OLUF CHRISTIAN BOECKMAN
IPC: C21B13/08
Filed: 1918-05-17
Abstract: 117,444. Bockman, O. C. June 29, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Extracting.-In the reduction of iron ores, the ores are preheated by the combustion of gas used to effect the reduction of the preheated ore. The reduction and combustion chambers may be separate furnaces or, as shown, may be combined in one furnace. Ore is fed from a. hopper 4 to a revolving tube furnace 2, 3, to the lower end of which coal gas or other hydrocarbonaceous gas, which may be preheated, is fed through an inlet 7. The gas is burnt in the portion 3 of the furnace by air admitted through an inlet 8, and the reduced iron is discharged through an outlet 6.
Patent GB-765550-A (GB)
Title: Improvements in and relating to pneumatic tyre covers
IPC: B60C9/28
Filed: 1955-03-22
Abstract: 765,550. Pneumatic tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. March 22, 1955 [Sept. 29, 1954], No. 8301/55. Class 144 (2). A pneumatic tyre cover in which the side walls 11, 12 are reinforced by at least one ply of cones 15, 16 lying side by side in the radial planes of the tyre has the cones of at least one of the plies in each of the side walls 11, 12 extended from the bead 17 or 18 of the cover to a point beyond the near edge but not beyond the far edge of the tread 14 so that the cords 15, 16 of the two plies overlap each other beneath the treads 14 and the two plies of the cords 15, 16 are bonded together by being separately embedded in the rubber of the cover where they overlap. In the arrangement shown in Fig. 1 the cords 15, 16 overlap at the centre of the tread 14 and in Fig. 3 the cords 31, 32 extend to the edges of the tread. In the crown 13, Fig. 1, three plies of cords 19, 20, 21 are provided and are arranged to run in three different directions so that the three sets of cords are " triangulated ". The crown 33, Fig. 3, has two plies 27, 28 arranged to run in different directions in non-radial planes so as to achieve the desired " triangulation ". The plies 27, 28 are embedded in a harder rubber than used in the side walls. The side walls can be provided with more than one ply of cards and where extra plies are provided they can be continuous so as to extend from bead to bead or one of them can be discontinuous and overlap beneath the tread. Between the crown plies and the tread there can be provided a " breaker " ply embedded in rubber softer than the tread. Specifications 628,060, 677,166 and 698,915 are referred to.
Patent GB-240734-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/10
Filed: 1925-03-30
Abstract: 240,734. Kattell, S. M. March 30,1925. Razors, safety. A safety razor comprises a holder 2 supporting a blade 5 and a guard 6 having means at one end for the detachable mounting or pivoting thereof upon the holder and having a hook 7 at its other end for engagement with the holder, the hook or the end of the holder or both being roughened to increase the frictional contact between them. As shown the guard is reversible and is pivoted to the holder by a duplicate hook 7 which engages a transverse hole 8 spaced from the end of the holder. A lip 12 and lugs 13 on the guard facilitate manipulation and a. shoulder 11 on the holder limits the movement of the guard in engaging the holder. The holder may be slotted to increase its resilience and adapt it for blades of varying thickness.
Patent GB-268134-A (GB)
Title: Improvements in and relating to the mounting of rear screens for vehicles
IPC: B60J1/00
Filed: 1926-03-29
Abstract: 268,134. Buch, M. A. March 29, 1926. Wind and like screens or deflectors.-A screen 10, Fig. 1, for a vehicle is mounted on a swing- ing arm 2, the pivots being locked simultaneously by a pivoted member 15, Fig. 3, operated by a lever handle 24, Fig. 4, on the screen or part adapted to move therewith. The arm 2 is of channel section and is provided with a socket 3 at one end adapted to fit over a pivot pin 4 on a bracket 7 secured to the side of the vehicle or to the back of the front seat. The other end of the arm is provided with a pivot pin 9 on which the screen is mounted by a socket 12, on a bracket 13, the pivot pin and socket being slotted to take the end 27 of the lever handle 24, the slot in the socket 12 being continued around the circumference to permit the screen swinging through approximately a. right angle. The locking member 15 is pivoted at 17 to the arm and is provided at its ends with projections 18, 19 which enter slots 8, 14 in the bracket 7 and screen frame respectively. The locking member 15 is moved downwardly by a tappet 21 operated by the end 27 of the lever handle 24. Various locking positions may be provided.
Patent GB-119422-A (GB)
Title: Improvements in Valve Gears for Internal Combustion Engines.
Inventor: SMITH TOM GRAVES
IPC: F02D1/00
Filed: 1918-05-21
Abstract: 119,422. Smith, T. G. May 21, 1918. Regulating; valve-gear.-The admission valve a is actuated by a lever b connected by an adjustable rod c and link m to a cam-operated lever n, the opening of the valve being varied by a governor-controlled track e upon which bears a roller d secured to the rod c. To vary its inclination, the track is pivoted at f and is engaged upon its underside by a block i connected by a link j to the lever k actuated by the governor. The track slides in guide-ways and the block i moves along a bracket h. Two modified constructions are described in which the inclination of the distance-piece is effected by a screw actuated by the governor.
Patent GB-1092853-A (GB)
Title: Regulating device, particularly for actuating an optical filter when measuring brieflight pulses
IPC: G01J1/16
Filed: 1965-03-01
Abstract: 1,092,853. Photo-electric systems. LICENTIA PATENT-VERWALTUNGS G.m.b.H. March 1, 1965 [March 2, 1964], No. 8586/65. Addition to 1, 024, 259. Heading G1A. The device of the parent Specification for measuring the average intensity of light pulses relative to simultaneous reference light pulses in which pulses representative of the difference of intensity between the measuring and reference pulses are fed according to their sign to one of two lengthening circuits before being applied to an integrator, is modified in that the pulse lengthening circuits comprise a single network having two branches each comprising a series connected diode 29, 30, Fig. 2, and Zener diode 31, 32, the branches being poled to conduct in opposite senses. The pulse lengthening circuits are completed by a capacitor 33. The input to the pulse lengthening circuits is normally closed by a short circuit through diodes 38, 39. Pulses are applied to the terminals 40, 41 in synchronism with the light flashes to back bias diodes 38, 39 and allow the "difference" pulses to enter the pulse lengthening circuit. The output at 36 is fed via an integrator 22, Fig. 1 to apply a bias at the point 11 which is such that if the measuring and reference light pulse are equal, the circuit is balanced and the A. C. signal applied at 12, 13 does not pass diodes 15 and 16. Where there is unbalance, pulses of one or other sense pass diodes 15 or 16 to energize a motor 10 controlling an attenuator in the reference light beam in such a sense as to equalize the measuring and reference pulses.
Patent GB-850902-A (GB)
Title: Shock absorber piston
IPC: F16F9/348
Filed: 1959-03-12
Abstract: 850,902. Hydraulic dampers. ALLINQUANT, F. S. March 12, 1959 [March 15. 1958], No. 8651/59. Class 108(3). The piston of a hydraulic shock absorber has ducts 4, Fig. 1 and 5, Fig. 2, which are controlled by valves 7, 8, which comprise thin metal foil. The metal foil 7 has holes therethrough corresponding with the ducts 4. The metal foil 8 has holes therethrough corresponding with the ducts 5. As oil passes through the piston from top to bottom in Fig. 2, the metal foil 7 is bent backwards against a washer 9 which limits its movement. The metal foil 8 moves similarly as the piston moves downwardly. Several layers of foil may be used and the holes may be other than cylindrical in shape. The ducts 4 are connected by a groove 6 in the lower face of the piston.
Patent GB-1056252-A (GB)
Title: Improvements in or relating to shelving
IPC: A47F5/13
Filed: 1964-03-02
Abstract: 1,056,252. Shelving. L. MASLOW. March 2, 1964 [May 3, 1963], No. 8662/64. Heading A4B. [Also in Division E2] Shelving units 10, each comprising grid shelves 12 detachably mounted between vertical frame supports 14, are releasably secured together end-to-end or side-by-side by a clip 50 engaging adjacent end frames 14. In the end-to-end arrangement of Figs. 1, 3, the arcuate ends 54, 56 of the clip 50 engage around vertical rods 32 forming a part of the end frames 14, the clip 50 being fitted (see Fig. 3) by engaging one end 56 around one rod 32 and then resiliently urging together the rods 32 by means of a screwdriver passed through an aperture 58 in the clip 50 and used to apply a levering action to permit the other end 54 to engage its associated rod 32. In the side-by-side arrangement of Fig. 8 the clip 50 engages a vertical rod 32 of one unit 10 and a vertical rod 15 of the other unit 10, the rod 15 being inwardly spaced and rigidly interconnecting transverse members of the end frame 14. The shelf ends are notched to resiliently engage the inner faces of the upright rods 32 and are supported on the said transverse members of the end frame 14. Adjustable feet are provided on the end frames 14.
Patent GB-351934-A (GB)
Title: Improvements in means for tuning or otherwise controlling electrical amplifying circuits
IPC: H03J1/22
Filed: 1930-03-19
Abstract: 351,934. Converting oscillating into rotary motion. PEARSON, L. H., 54, Long Row, and RANDALL, W. J., 55, Talbot Street, both in Nottingham. March 19,1930, No. 8793. [Class 80 (i).] A wireless receiver is remotely tuned by dialled impulses, the first train of which approximately adjusts a variable condenser or other element, the second impulse train gives fine adjustment, and a third train actuates a volume control device. Figs. 6 and 7 show one method of obtaining approximate and fine adjustment of a variable condenser by dialled impulses from a remote point. The moving vanes mounted on a shaft 1 are stepped round to the approximate position by magnet DM1 actuating a pawl and ratchet 3. The mechanism is enclosed in a casing 6, 7c, which is rotatable as a whole on ball-bearings 5 with respect to the panel 2. The plate 6 has an extended arm 7 held by a spring 8 against a cam member 9, the latter being rotated by a ratchet 11 operated by stepping magnet DM2. When the arm 7 is displaced by movement of the cam, the whole casing 6, 7c and mechanism, including the shaft 1, is slightly rotated to give the required fine adjustment.
Patent GB-541246-A (GB)
Title: Improvements in gas producers, retorts or combustion stoves
IPC: C10J3/00
Filed: 1940-05-16
Abstract: 541,246. Gas-producers ; retorts ; furnaces. MACDONALD, J. A. May 16, 1940, No. 8795. [Classes 51 (i) and 55 (i)] In the partial or complete combustion of fuels with or without the recovery of by-products, a concentrated fire zone enclosed in fuel is obtained by a primary air supply of relatively low velocity, and a gas outlet of relatively high velocity, the outlet pipe being immersed in the fuel bed and means such as an annular pipe around the inlet pipe to supply steam or other vapour around the inner fire. The apparatus comprises a container 1 with an air inlet pipe 3 surrounded by a concentric inlet 3a, and a gas outlet pipe 5 which may be enclosed in a concentric outlet 5a, the flame being confined to an inner zone 6 and the hottest zone to 7. Approximate isothermals are denoted by 9 to 12. The extent to which the gas outlet pipe 5 projects into the fuel may be varied. Water is supplied by an inlet 5, and some of the gases generated may escape through outlets 13 near the top of the container. The hot zone is enclosed in an envelope of water vapour or other vapour or gases introduced through the annular pipe 3a. Specifications 336,932, [Class 55 (i)], and 480,392 are referred to.
Patent GB-1024825-A (GB)
Title: Improved salt block holder
IPC: A01K5/015
Filed: 1963-03-05
Abstract: 1,024,825. Salt-lick holders. F. H. BEYEA. March 5, 1963, No. 8802/63. Heading A1M. A salt lick holder comprises a base 24, a back portion 32 formed with a semicircular indentation 26 adapted to fit against a pipe, and side pieces 21, 22 provided with horizontal ridges 23 engagable in grooves 13 in the salt block 10. The back portion 32 has semi-circular strips extending therefrom which secure the holder in position by frictional engagement with the pipe. The holder is formed of a resilient plastics material.
Patent GB-396158-A (GB)
Title: Improvements in or relating to the manufacture of goods containing rubber or similar materials
IPC: C08K7/12
Filed: 1932-03-24
Abstract: Porous or microporous goods of rubber and the like containing fibres are produced by forming granular precipitates of rubber, admixing with fibrous materials, compacting the mixture by filtration and vulcanizing under such conditions that evaporation of the contained water is prevented.  The formation of the granular precipitates is effected in known manner in dilute solution.  Suitable fibrous materials are asbestos, and cellulose fibre.  The filtration may be carried out in conjunction with moulding, spreading, impregnating or dipping operations; thus a porous former may be dipped, and suction appled to produce cylindrical articles, or the filtration need only be carried to the extent necessary to produce a thick paste which may then be spread or moulded.  Pressure may be used in addition to suction to assist the filtration, and also the filter cake may be treated with a rubber solvent, e.g. carbon tetrachloride mixed with a mutual solvent for water and the rubber solvent used, e.g. alcohol. Specifications 219,635, 290,313, [both in Class 70, Indiarubber &c.], 307,315, [Class 32, Distilling &c.], and 396,159 are referred to.
Patent GB-295572-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-03-23
Abstract: 295,572. Associated Telephone & Telegraph Co., (Assignees of Stehlik, R. F.). Aug. 13, 1927, [Convention date]. Charging and discharging batteries. - Means are described for charging the battery of a small automatic telephone exchange from a direct or alternating source of supply. A relay CC is normallv locked over 168, so that when there is no talking connection and relay CH is therefore de-energized, relay MR energizes to initiate battery charging. When either relay CH is energized due to setting up a connection or relay HVR due to the battery being fully charged, relay MR is released, and in the latter case CC is also released temporarily. If direct current supply is used, the charging circuit is :-conductor 170, 171, fuse d2, 172, retard 173, battery, d1, 174, 175 conductor 176. With A.C. supply, rectifying means are used and the fuses removed, the lower polarizing windings of relay PR are energized while the upper windings are connected over 179, 180 to the supply, so that contacts 181, 182 are operated alternately. The H.T. winding of the transformer is connected direct across the supply, and current is induced in L in the required direction only due to the chattering of 182. Arrangements for generating ringing currents may also be used for battery charging by provision of a suitable switching relay.
Patent GB-243596-A (GB)
Title: Improvements connected with locks for expanding suit-cases and the like
IPC: E05B65/52
Filed: 1925-04-04
Abstract: 243,596. Smith, L. H. April 4, 1925. Cases of variable capacity.-Trunks, suit cases, &c. having gussetted or expanding tops are provided with locks wherein a strap e which is passed through a slot d in the solid bridge-like body c of the hasp h is locked in position by locking the case, &c., the eye of the hasp passing through one of a number of slots i in the strap. Specification 11626/88, [Class 44, Fastenings, Lock &c.], is referred to.