baber/WOPTO huggingface dataset:
Patent GB-1048644-A (GB)
Title: Improvements in dry-shaver housings
IPC: F16B21/06
Filed: 1963-06-20
Abstract: 1,048,644. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 20, 1963 [June 23, 1962], No. 24584/63. Heading B4B. [Also in Division E2] A dry-shaver housing comprises two separate parts 1, 2 having a pair of projections which are located one on each of said housing parts and which are so constructed that one is a mirror image of the other and a clasp 8 arranged to engage over said projections to hold the two housing parts together, the projections and the clasp being located in a recess 3, Fig. 1 (not shown), which is formed partly in one housing part and partly in the other housing part and which is arranged to be covered by the shaving head of the dry-shaver. In the construction shown, there are two pairs of projections 4, 6 and 5, 7. The clasp is made of resilient steel wire and is of substantially rectangular shape; one of the longer sides is gapped so that a limb is formed which is given a slight upward bend. In addition to the projections 4-7, the housing is provided with two other projections 9, 10, one on each part, which are arranged between the projections 4 and 6 and 5 and 7 respectively and under which the clasp is held when it is in the position in which it holds the two parts of the housing together. The limb in the gapped side enables the two parts of the housing to be separated since the limb can be bent inwardly to disengage it from the projection 10 whereafter the clasp can be pivoted about the other long side under the projection 9 to allow the two parts of the housing to be separated.
Patent GB-206633-A (GB)
Title: Improvements in stair-rod fastening devices
IPC: A47G27/06
Filed: 1922-09-12
Abstract: 206,633. Carroll, J., and Williamson, J. Sept. 12, 1922. Fastenings operated by tools.-A stair-rod fixing device comprises a rectangular plate 10 having its two long edges 10<a>, 10<b> bent to form longitudinal grooves 11 to receive two sliding plates 12, 13 with elongated slots in which engage studs 17, 16. The studs are formed on a disc 18 rotatably carried by the plate 10, a partial turn of the disc moving the plates, which have pointed ends, in opposite directions to enter the riser and tread of a stair. In a modification one sliding plate only is used, the plate 10 having a pointed end. In a further modification shown in Fig. 4, the plate 10 is replaced by a wood front portion 22, the sliding plates 12, 13 being held in position by the edges of the outer plate 13 which are bent over the edges of the wood front.
Patent GB-742846-A (GB)
Title: Electrical precipitator
IPC: B03C3/38
Filed: 1953-09-08
Abstract: 742,846. Rectifying. RESEARCH CORPORATION. Sept. 8, 1953 [Sept. 8, 1952], No. 24802/53. Class 38 (2). [Also in Group XL (a)] An electrostatic precipitator with collector electrodes 100, 100<SP>1</SP> between which an alternating field is set up and a discharge electrode 104 which discharges alternately to the two collector electrodes, is supplied, Fig. 5, through transformer 106, rotary switch 116 and condenser 122; or Fig. 6, through transformer 130, rectifiers 132, 134 and condensers 136, 138. Limiting resistances 124, 140 and spark gaps 126 are included. The alternating field between the collector electrodes is successively strong and weak and the discharge electrodes are located in the weak regions.
Patent GB-249387-A (GB)
Abstract: 249,387. Detroit Drop Hammer Board Co., and Teakle, R. T. July 20, 1925. Power hammers.-Drop hammer boards are formed of a number of wooden &c. bars 1 between which are interposed strips of leather or other flexible material 2, all secured together by glue or other adhesive.
Patent GB-842095-A (GB)
Title: Method of welding workpieces, more particularly rails, by the intermediate aluminothermic casting process
IPC: B23K23/00
Filed: 1956-08-15
Abstract: 842,095. Casting composite articles. ELEK. TRO-THERMIT G.m.b.H. Aug. 15, 1956 [Aug. 16, 1955; Dec. 2, 1955; Feb. 9, 1956], No. 25007/56. Class 83 (1). [Also in Group XXIII] A method of welding workpieces, particularly rails, comprises casting aluminothermicallyproduced steel between the spaced ends of the workpieces enclosed in a prefabricated mould, said ends being preheated by flames, projected from above, down the mould riser. In one embodiment, Figs. 1, 3, mould ports 3a, 3b, 3c, which may be made by the CO 2  process, are bedded down in pliable cushioning 8, such as green sand, in metal box halves 5. An auxiliary box 17 may enclose the mould before its insertion in the cushioning 8. The outside of the mould may be coated with a water-repellant. The assembly is then clamped by a clamp 4 to the rails 1, 2, and the mould-joints sealed. The ends of the rails are then heated by a burner 9 introduced into the riser 10, and a pouring-pot 6 is moved into casting-position. The burner 9 is then removed while the aluminothermic reaction takes place in a crucible T, pouring being initiated by removal of a plug 13. Slag drains into a box 14. In a modification, Figs. 6 and 8, the mould-parts are clamped to the rails by a two-arm-clamp 4, Fig. 8, or 4a, 4b, Fig. 6. Refractory members 19, Fig. 9, engage in keyways in the mould above the rail-head, to close the gaps 23 between the mould and the tops of worn rails, while another refractory member 22, Fig. 11, may be positioned in the riser 10, after heating and removal of the burner, so as to leave only a small riser above the rail-head for subsequent removal.
Patent GB-178064-A (GB)
Title: Improvements in and relating to violins and like stringed musical instruments
IPC: G10D3/02
Filed: 1921-09-21
Abstract: 178,064. Seelbach, J. April 8, 1921, [Convention date]. No Patent granted (Sealing fee. not paid). Violins and like bowed instruments; sound-posts; fingerboards.-A number of resonating rods 4 are mounted at one end in blocks 3 secured to the belly under the bridge, and are arranged with their free ends, which are of greater diameter, nearly touching the ribs. The sound-post is in the form of a fork 6, of which one prong rests on the back while the other is free. The finger-board 12 is hollow and forms a soundbox 17 in which is arranged another resonating rod 15 mounted at one end in a loose plate 14 held between the end of the finger-board and the nut 13. The belly 1 has no rim projecting outside the ribs 5 and is secured thereto by glueing on two veneer bands 8, 10 at right-angles, the band 10 lying in a recess at the edge of the belly.
Patent GB-946731-A (GB)
Title: A torsional vibration damper for a body subject to torsional vibrations
IPC: F16F15/12
Filed: 1962-06-29
Abstract: 946,731. Torsional vibration-dampers; slip couplings. LIONEL-PACIFIC Inc. June 29, 1962 [March 9, 1962], No. 25027/62. Headings F2S and F2U. In a tuned torsional vibration damper 10 comprising a resiliently distortable, generally annular-shaped, inertia member 18 mounted by a friction clutch mechanism 16 on a central hub 12 splined and secured by a nut 24 to a shaft 19, e.g. of an I.C. engine, the spring component is incorporated in the inertia member itself so that the use of a separate spring member is unnecessary and an extremely stiff spring component is provided in conjunction with a massive torsional inertia member. When the natural period of vibration of the inertia member 18 is such that it coincides with the vibration frequency of the shaft the amplitude of the alternating distortions of the inertia member builds up so that there is a maximum transfer of energy from the hub to the inertia member through the friction clutch 16. The hub 12 is coupled to the inertia member 18 by a member 14 which is journalled on a bearing section 30 intermediate a threaded portion 26 and a flange 28 on the outer face of the hub 12 the coupling member 14 being provided with annular recesses 32, 34 which are lined with layers of friction material 44, 46 and accommodate a pair of annular brake rings 36, 38. The brake ring 38 is urged against the flange 28 by a dished spring 50 which is constrained between a frictionadjusting nut 48 on the threads 26 and the brake ring 32 so that, in operation, the brake rings will be held stationary with respect to the hub 12, slippage taking place between the brake rings 36, 38 and a central web 35 on the coupling member 14. A pair of spokes 52, 54 on the coupling member 14 are rotatably connected by pins 60, 62 and needle bearing assemblies 76, 74 to a corresponding stiff bifurcated lugs 66, 68 on the inertia member 18. The latter, which may be provided with one or more elongated slots such as shown at 100, 102, is distortable, under dynamic conditions, to the shape shown in Fig. 4. Mathematical formulµ are given for driving the natural vibration frequency of the inertia member.
Patent GB-637748-A (GB)
Title: Building elements
IPC: E04B2/22
Filed: 1947-09-12
Abstract: 637,748. Building elements. MORLET, J. J. G. Sept. 12, 1947, No. 25057. Convention date, May 30. Addition to 624,141. [Class 87 (i)] A building slab 1 as described in the parent Specification having a V-tongue 9 and groove 8 on its upper and lower faces and grooves 10 in its end faces is modified in that its rear face is flat and is provided with a rectangular projection 12 formed with a vertical hole 13. Corresponding L-shaped slabs are provided for corners.
Patent GB-269411-A (GB)
Title: Reamers
IPC: E21B10/26
Filed: 1926-10-11
Abstract: 269,411. Erwin, S. A., and Forrow, E. W. Oct. 11, 1926. Reamers. - In a reamer for use in well-drilling, a hollow mandrel 15, Fig. 1, carries a number of disc cutters 22 having flat top-and-bottom surfaces and an axial hole inclined to the axis of the mandrel. Each disc has radial cutters 23 providing cutting-edges parallel to the mandrel axis, and jutting- edges 23<a> inclined to the axis, and the cutters may all be of the same length to form a concentric reamer or of progressively varying length round the periphery of each disc as shown in Fig. 2 to produce an eccentric reamer. In the latter alternative the overall diameter of the discs is the same as that of the pilot drill 30, so that the drill string may be lowered into the well casing but the longer cutters 23<c> will ream out a hole larger than the drill. The discs are spaced apart by plain collars 24 and are secured by an end collar 26 engaging through teeth 27 with a drill-tube extension 21, and a screwed collar 25 locked by a nut 29. The mandrel is threaded at 16 to receive an extension 17 having a shoulder 18 which provides for withdrawal of the reamer by an overshot, and is hollow for the circulation of water.
Patent GB-534634-A (GB)
Title: Improvements in oil purifying systems particularly for motor vehicles
IPC: F16N39/06
Filed: 1939-09-07
Abstract: 534,634. Lubricating systems. TRICO PRODUCTS CORPORATION. Sept. 7, 1939, No. 25342. Convention date, April 1. [Class 12 (iii)] Lubricating oil is supplied under pressure to bearings of a motor vehicle engine by a gear wheel pump 32, 33 connected to a reservoir by a pipe 14, and part is drawn from the pipe 14 through a branch pipe 22, an oil purifier and air separator 21 and a pipe 23 by a second gear wheel pump 38, 39 provided with an air intake 42 connectable to any suction operated device, e.g. a fuel pumping device, signal, windscreen wiper or air horn. The purified oil seals the air pumping mechanism and is discharged with the air through a pipe 28 to the crankcase. The pump shafts 34, 44 are driven from the engine and may be a continuation, one of the other.
Patent GB-690019-A (GB)
Title: Improvements in method of making pneumatic tyres
IPC: B29D30/00
Filed: 1951-10-31
Abstract: A method of making a pneumatic tyre having plies of transverse cords comprises (a) building the tyre undersize, (b) vulcanizing the bead zones to fix the cords against slippage, (c) expanding the tyre to stretch the cords, (d) finally vulcanizing the complete tyre whilst the cords are in stretched condition.  The preliminary vulcanizing (b) is effected in a corresponding undersize mould before transferring the tyre to a larger shaping and vulcanizing mould for carrying out steps (c) and (d).
Patent GB-1393355-A (GB)
Title: Method and apparatus for removing fission products from the coolant of a sodium-cooled nuclear reactor
IPC: G21C19/31
Filed: 1973-05-29
Abstract: 1393355 Cooling nuclear reactors WESTINGHOUSE ELECTRIC CORP 29 May 1973 [9 June 1972] 25473/73 Heading G6C In a process for removing Cs 137, 1131 or tritium fission products from the coolant of a sodium-cooled nuclear reactor, hydrogen is added to a portion of the coolant which has been diverted from the main stream, the diverted portion is cooled to form a precipitate of sodium hydride containing the fission products, the precipitate is removed, and the diverted coolant is returned to the main stream. Hydrogen is introduced into the liquid sodium coolant by passing hydrogen under pressure through a thin walled tube immersed in the diverted part of the coolant at about 1000 F. On cooling to about 250 F., sodium hydride containing the fission products is precipitated on to wire mesh. By continuing treatment of the diverted portion of the coolant, the fission product content of the whole of the coolant is reduced to a safe level.
Patent GB-674520-A (GB)
Title: Improvements in or relating to electric circuit breakers embodying overload trip devices
IPC: H01H71/40
Filed: 1950-10-20
Abstract: 674,520. Automatic circuit breakers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 20, 1950. [Dec, 10, 1949] No. 25580/50. Class 38 (v). A thermally or magnetically trippable switch has a movable contact 23 controlled by a dead-centre spring toggle which may be manually operated and is normally held by a spring-pressed latch 73, which is itself held in latching position by a part 93 of a trip bar 87, as in Specification 611,817, the bar being moved to trip the switch by a resilient member 107 anchored at 102 to the base with a bimetal member 101. parallel thereto. On a persistent overload up to e.g. 1,000 per cent load current, the bimetal deflects to the left and an adjustable screw 105 thereon engages the turned-back end 109 of member 107 to cause tripping. The bimetal member 101 carries a magnet yoke 113 and the member 107 an armature 115 so that on a severe overload, e.g. over 1,000 per cent load current, the armature is attracted to cause instantaneous tripping without movement of the bimetal. In a modification, Fig. 2, the resilient member 125 carries the latch 131 and is moved to the right for tripping on deflection of bimetal member 117 which engages an adjustable screw 139 on the end of member 125.
Patent GB-481947-A (GB)
Title: Improvements in or relating to anti-friction bearings
IPC: F16C33/78
Filed: 1936-09-21
Abstract: 481,947. Ball and roller bearings grease seals. RANSOME & MARLES BEARING CO., Ltd., and HICKLING, F. O. Sept. 21, 1936, No. 25649. [Class 12 (i)] [Also in Group XXVI] An antifriction bearing comprising rings 1, 2 and balls or rollers 5, has, on one or both sides, a grease shield or seal a. The latter is L- shape in cross-section and the whole, or substantially the whole, of its periphery 6 fits the ground surface of one of the race rings. The outer edge 12 of the seal a is curved or pressed outwardly and engages a groove 14 in the race ring. As shown, the edge 12 also engages an annular disc 10 retaining a packing ring 11. The seal a may be stepped at 16 to co-operate with a shouldered portion 17 of the ring 2.
Patent GB-326440-A (GB)
Title: Improvements in radiators for heating buildings and the like
IPC: F24H3/00
Filed: 1928-09-07
Abstract: 326,440. Cox, G. H. Sept. 7, 1928. Gas and oil heating-stoves; boilers, arrangement of. - Radiator elements e are connected to a small boiler c heated by a gas or oil burner. The apparatus is entirely sealed with the contained air at, or slightly above, atmospheric pressure, and the boiler contains only sufficient water to keep the radiator elements filled with steam under normal conditions, and to maintain a film of water in the boiler itself. Abnormal heating renders the boiler entirely dry and prevents the generation of dangerous pressures. The boiler may contain porous material c', such as pieces of unglazed pottery, which absorbs the water in the boiler. In the radiator shown the four tubular radiator elements e are connected by pipes b<2> to the boiler c, and each contains an inner tube f forming a container in which food or water may be heated; a draw-off pipe a<2> is shown connected to the lower ends of two of the containers. Pointed extensions c<2> of the lower ends of the container facilitate the noiseless return of the condensed steam to the boiler c.
Patent GB-879029-A (GB)
Title: Improvements relating to electronic amplifiers
Inventor: LESLIE JOHN ANGUS
IPC: H04B15/00
Filed: 1959-07-27
Abstract: 879,029. Valve amplifier circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 27, 1960 [July 27, 1959], No. 25706/59. Class 40(6) In a valve pre-amplifier PA connected to a main amplifier MA by three leads Sl, S2, -H.T., S2 and -H.T. form a loop for circulating currents due to stray fields which introduce a hum signal at the input of the main amplifier. To reduce this effect, a resistor RX is introduced into the -H.T. lead preferably at the main amplifier end, and is of a value many times the resistance of the leads Sl, S2.
Patent GB-714329-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M1/00
Filed: 1950-10-23
Abstract: 714,329. Spray carburetters. FUCHS, A. Oct. 23, 1950, No. 25805/50. Class 7(3) Aerating air is fed into a fuel well 13 through inclined passages 14 which are substantially tangential to the fuel well to cause swirling about the axis of the well, the aerated fuel being sprayed through orifices 21 into an annular space 18 on the upstream side of a bowl-shaped guide member 20 which has a sharp peripheral edge located in the narrowed part 22 of the mixture passage. The aerating air flows through an annular passage 29 inside a cup-shaped member 26 and through passages 28 into a second annular passage 15 connected to the inclined passages 14. In a modification the passages 14 are arranged in sets of three, the passages of each set being at the same level and with one set staggered in relation to its adjacent sets. In Fig. 3 the fuel well 1 is of annular shape and the aerating air enters through inclined passages 3 in the inner well
Patent GB-481613-A (GB)
Title: Improvements relating to chairs and the like
IPC: A47C7/46
Filed: 1936-09-24
Abstract: 481,613. Seat backs. SHAW, G. R. Sept. 24; 1936, No. 25950. [Class 52 (ii)] A central panel 5 of elastic webbing is surrounded on all its sides by inextensible material 6, 7, 8, such as canvas and is detachably secured by straps or lacing to a seat back frame 1. Specification 447,327 is referred to.
Patent GB-1351855-A (GB)
Title: Inserts for use in connectors of furniture panels
IPC: F16B12/20
Filed: 1971-04-19
Abstract: 1351855 Furniture joints J BLUM 19 April 1971 [6 April 1970] 25969/71 Heading A4H [Also in Division E2] Wooden furniture panels 14, 15, and 11 are secured together by an insert comprising two parts 1 driven into a bore in panel 11 from opposite ends thereof, each part having peripheral sawteeth 6 for biting into the bore wall and interfitting peripheral projections and apertures 4, 5, projections 4 also including the sawteeth 6. The projections and apertures 4, 5 may have interengaging sawteeth 9, 8. Each part 1 may comprise two halves (1', 1"), Figs. 1, 3 (not shown) glued together. Each part 1 has a pin 13 penetrating the panel 14 or 15, and locked in a bore (3) in the part 1 by a clamping element (2).
Patent GB-299173-A (GB)
Title: Device for preventing retrograde movement of motor vehicles
IPC: B60T7/12
Filed: 1927-10-01
Abstract: 299,173. Gonard, J. L. Oct. 1, 1927. Guarding against wrong movements.-A device for preventing rearward movement of motor vehicles on an incline comprises a series of rollers or balls disposed in recesses formed by fixed members and inclined surfaces on a rockable ring so that the rollers become wedged between the shaft and the ring when the drive shaft tends to reverse, the ring however being rocked to a position when the change speed gear is moved to the reverse drive position such as to render the wedging action impossible. Balls or rollers 61 in contact with a ring 60 keyed to the driving shaft 14 of the vehicle are disposed in pockets formed by a series of fixed spaced fingers 66 and inclined faces 64 formed in a rockable ring 62. The ring 62 can be rocked by worm gearing 38 the shaft 37 of which has keyed thereto a double-armed lever 46 having adjusting screws 48, 49 in contact with a slotted lever 52 freely mounted on the shaft 37 and with which a pin 36 on a sliding bar 34 is adapted to engage. The bar 34 is connected to an arm 25 secured to one of the shifter rods 20 of the change speed gear. This rod 20 and a second one 21 are connected to the operating rod 23. The device is disposed in a casing 11 secured to the' transmission casing 10. When the rods 20, 21, 23 are in the neutral or forward driving positions, the ring 62 is in the position shown, and if the drive shaft 14 then tends to reverse the rollers 61 become wedged between the ring 60 secured thereto and the inclined faces 64 of the ring 62. When however the rods 20, 21, 23 are moved to the reverse drive position, the pin 36 moves to the end of the slot in the lever 52 which is then rocked and by means of the gearing 38 rocks the ring 62 in a direction reverse to that shown by the arrows in Fig. 3 so that the rollers are in a wider part of the recesses and are unable to wedge. When the lever 52 is in the position corresponding to reverse drive, the slot therein is inclined and movement of the pin 36 in the slot when the gear is returned to neutral or forward drive thus causes the lever to rock back to the normal position shown in Fig. 1.
Patent GB-758608-A (GB)
Title: Improvements in or relating to wire stock replacement units for magnetic sound recording and reproducing apparatus
IPC: G11B5/00
Filed: 1954-09-08
Abstract: 758,608. Magnetic recording and reproducing apparatus. GENNING, E. Sept. 8. 1954 [Sept. 8 1953], No. 25986/54. Class 40(2) In a magnetic wire record apparatus, a detachable cassette 14 carries axially freely mounted spools which are loosely located by peripherally spaced pins and is adapted to engage a reversible drive and a magnetic head 21 on the main part 22 of the apparatus, and incorporates a spring bow 24 which presses the wire 17 into contact with said magnetic head 21. When the cassette is withdrawn from the machine the spring bow 24 holds the wire 17 against an elastic bedding 27 so that it is retained in position between guide pins 26. At the same time the spools which are loosely located in position by pins 18 are held from rotation by the ends 30 of a flat spring 29 which are lifted by pins 20 when the cassette is replaced on the machine. The spools 15 16 may have incorporated therein magnetic slip couplings as shown in Fig 4. A detachable strip 46 may be provided on the outside of the cassette to provide indication of duration of recording.