baber/WOPTO huggingface dataset:
Patent GB-236960-A (GB)
Title: Improvements in thermostats
IPC: H01H37/54
Filed: 1925-07-13
Abstract: 236,960. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Mottlau, A. J.). July 11, 1924, [Convention date]. Thermostats.-A thermostat comprises a bimetallic metal frame, having a bimetallic strip extending across it, the parts being so shaped that a snap action of the bimetallic strip is obtained at a predetermined temperature. The device operates electrical contacts. The frame 1 may be composed of brass and nickel steel plates 4, 5 and is bent at 6 and 7. The bridging member 3 may be of any resilient material, but is preferably stamped from the same plate as the frame. In the stamping operation, the member 3 is elongated relatively to the frame, and the frame may be slightly shortened. The thermostat is mounted between insulating blocks 9, 11, and the opposite end is free to move on a bolt 15. At a predetermined temperature the member 3 moves suddenly to the opposite side of the centre line of the frame 1, and the electrical contacts 17, 18 are disconnected. Alternatively, the circuit may be closed at a predetermined temperature instead of opened.
Patent GB-530171-A (GB)
Title: Temperature compensation means for pressure actuated indicators
IPC: G01L7/00
Filed: 1939-06-19
Abstract: 530,171. Pressure gauges. BENDIX AVIATION CORPORATION. June 19, 1939, No. 17885. Convention date, June 29, 1938. [Class 106 (ii)] Comprises a component responsive to a pressure differential for the actuation of indicating mechanism, said component being carried by a member mounted on a supporting arm wherein the member is adapted to be flexed by a temperature-responsive element independently of said arm and in accordance with the rate of change of temperature to correct the reading. A casing 10 contains a frame having face and back plates 12, 11 connected by distance pieces 13. A diaphragm capsule 15 is mounted on a flexible arm carried in the frame. This. comprises a channel shaped element 18 formed as a slotted base 19 with upwardly extending sides 19a, a resilient tongue supporting the channel on a bracket 22 connected to member 11 through a hole in which part of the channel member passes. The sides 19a have upwardly extending ears 27 supporting the axle 28 of a roller 27a. A block 29 is adapted to slide between these ears. At the opposite end of the channel a roller 33 is similarly mounted. The latter engage the conical end 35a of a screw 35 of a member 37 fastened to the face plate 12. A second inverted channel element 40 has its sides cut at 43 about which point it may flex and is provided with downwardly extending wings 44 which are fastened to the sides 19a of element 18. A block 46 is screwed to the base 41. A thin metallic strip readily responsive to changes in temperature is attached at one end to the block 46 and is passed over the block and pulley 27a to be secured to the block 29 at 49. The tension on the strip may be adjusted by turning the screw 31. A hollow part 50 is fastened to the base 41. The boss 54 of a diaphragm 15 is threaded into a socket 51 the spigot of which enters the post 50 and is secured by a set screw 53. The zero position of the diaphragm may be initially adjusted by the screw 31 while the element 17 is being mounted. A further adjustment is provided by the conical screw 35 which bears on roller 33. A tube 56 connects the diaphragm with the atmosphere outside the instrument. In Fig. 1, the tube 56 is connected to a coupling member 57 vented to the outside atmosphere. The movements of the diaphragm are transmitted to a needle 16 through post 58, rock arm 60, pivoted about 63, arm 66 and rack and pinion. Diffusion means, a porcelain tube 92, for example, provides means whereby equalization of the pressure inside and outside the diaphragm may be regulated, such being connected to a hollow member 91 connected to coupling member 57. In a modification, the top channel 40 is combined in one element with the bottom channel 18.
Patent GB-172347-A (GB)
Title: Improvements in or relating to moulding apparatus for tyres or the like
IPC: B29D30/06
Filed: 1920-06-30
Abstract: 172,347. Dunlop Rubber Co., Ltd., Macbeth, C., Fellowes, F., and Beazley, T. A. June 30, 1920. Moulding wheel tyres; moulds.-The parts of tyre and like moulds are held together by dumb-bell bolts C having a stem adapted to fit into slots in the mould parts and enlarged heads or ends adapted to engage the parts adjacent to the slots. The invention is described in connection with n.oulds for tyre casings of the kind in which the tyre is subjected to internal pressure during vulcanization. The casing D, Fig. 1, supported upon the base-ring E, is enclosed by mould shells A, B having external lugs A', B' slotted to receive the bolts C. Fig. 2 shows a modification in which a divided base-ring E‹, E<x> is employed; whilst Fig. 8 shows a further modification in which the base-ring E is provided with a bead-engaging flange E<7> and locking-ring E<8>. Fig. 4 shows the belts C adapted to secure together the mould shell A and base-ring E by engaging internal lugs A<2>, E<4>; whilst Fig. 6 shows the bolts applied to a two-part base-ring. The bolts preferably fit with a slight slack which is taken up by the internal pressure, and do not project beyond the surfaces of the mould shells.
Patent GB-683949-A (GB)
Title: Improvements in reciprocating mechanism for the intermittent feed of wire and the like
IPC: B21F99/00
Filed: 1949-07-07
Abstract: 683,949. Coiling helices. BIRMINGHAM SMALL ARMS CO., Ltd., and LORTON, H. July 7, 1950 [July 7, 1949], No. 17939/49. Class 83 (iv). In a reciprocating gripper feed for wire &c. gripping surfaces on a member reciprocating in a slideway terminate substantially at a surface of the slideway so that there is substantially no unsupported portion of wire between the gripping surfaces and the part of the slideway to which the wire is fed. In a coil spring forming machine the wire 7 is held between the surface 6 on a reciprocating slide 4 and the surface 10 on a gripper 8 pivoted to the slide 4 and under which the wire is deflected through grooves 11, 12 out of the line of feed. The wire passes to and from the gripping surfaces 6, 10 through a longitudinal groove in the top of the slide 4 in which it is retained by the face 2 of the slideway 1 for the slide 4. A pin 15 on a lever 13 pivoted at 14 to the slide 4 is adapted to engage the member 8 and cause it to grip the wire 7 when the lever 13 is rocked in a clockwise direction, the slide 4 then moving to the left to feed the wire to a coil forming mandrel 23 and past an adjustable shunt-guide 24. An adjustable finger 26 controls the pitch of the coil. On the return stroke the lever 13 releases the wire and engages a pin 17 on the slide 4 which then moves to the right, the wire being held stationary by the coil 25 on the mandrel 23. The lever 13 is rocked by an oscillating arm 19 through a link 18, the arm 19 carrying a shear blade 22 which co-operates with a shearing edge on the mandrel 23 to sever the wire from the coil at the end of the return stroke. The slideway for the slide 4 may be arcuate.
Patent GB-564804-A (GB)
Title: Improvements in and relating to roofing felts
IPC: E04D5/02
Filed: 1942-12-17
Abstract: 564,804. Coated fabrics. RUBEROID CO., Ltd., and FALKNER, C. W. Dec. 17, 1942, No. 17948. [Class 140] Roofing felt comprises felt impregnated with a soft coal tar pitch, to which have been applied on one or both sides one or more surface coatings comprising a solution or dispersion of bituminous coal, brown coal, or peat in tars or tar oils obtained by distilling coal tar, in association with small proportions of fatty acid pitch such as stearine pitch, wool wax pitch, or cotton seed oil pitch and of a coal tar oil such as anthracene oil. A mineral filler such as slate dust may be added. The coated felt may be finally sprinkled with talc.
Patent GB-244011-A (GB)
Title: Improvements in variable speed and reversing gearing
IPC: F16D31/02
Filed: 1925-07-14
Abstract: 244,011. Eaton, C. W. July 14, 1925. Variable-speed gearing comprises a driving-shaft B, Fig. I, with screw threads B<1>, B<2> of opposite hand upon it. Nuts D, E are coupled so as to slide axially together and are adapted to carry with them a piston F adapted to reciprocate within a cylinder G fast upon a driven shaft C. An outer casing P and the cylinder are filled with oil, the oscillating motion of which is controlled by a throttle valve N, by which therefore the speed of the driven shaft C is also controlled. The reciprocation of the piston is effected by clutching the nuts D, E to the cylinder G alternately in succession. This is done by plungers H, J which are connected by a lever S medially pivoted at S<1>. Upon the peripheries of the nuts D, E are cam grooves Z, Y of the form shown in Fig. II. In Fig. I, the plunger J has been raised before leaving the groove Y, thereby depressing the plunger H to engage the groove Z. The nut D being held screws to the left followed idly by the released nut E. At the end of the stroke, the plunger H rides clear and starts the return stroke bv depressing the other plunger. Reversed driving may be effected by a simple clutch countershaft reversing-gear between an initial shaft A and the shaft B.
Patent GB-613195-A (GB)
Title: Improvements relating to the removal of dissolved salts from sea water
IPC: B01J47/00
Filed: 1946-06-14
Abstract: A method of removing dissolved salts from seawater to render it palatable comprises treating the water simultaneously with silver oxide and a hydrogen-ion-exchange material and then filtering it. The hydrogen-ion-exchange material preferably contains not more than .8 equivalents of exchangeable hydrogen for each equivalent of silver oxide.  Barium oxide or barium hydroxide may also be added to the water for the purpose of removing dissolved sulphates.  A briquette for use in the method comprises silver oxide, a hydrogen-ion-exchange material and a dissolving agent, for example, wilkinite.  It may also contain activated carbon. Specification 590,217 is referred to.
Patent GB-1427068-A (GB)
Title: Air-fuel mixture supply control system for use with carburetors for internal combustion engines
IPC: F02M7/28
Filed: 1973-04-13
Abstract: 1427068 Electric control of fuel supply to I C engines NISSAN MOTOR CO Ltd 13 April 1973 [14 April 1972] 18022/73 Heading G3N [Also in Division F1] In an I C engine, the air-fuel ratio of the combustible mixture supplied to the engine by a carbutetter is controlled in dependence upon at least one of the engine speed, the engine temperature, the position of a combustible mixture flow control member and the atmospheric pressure by providing an electrical analogue signal representing the corresponding variable, supplying the or each analogue signal together with a dither signal to a computing circuit 50 to produce an output signal representing an optimum air-to-fuel ratio. and providing an operating command signal in response to the output signal from a circuit 60 which is applied to means for adjusting the air-fuel ratio of the mixture. As shown, the engine is provided with a carburetter 10 in which the air and fuel are mixed in a chamber 18 and supplied to an induction passage 12, via a nozzle 27. The fuel is supplied to chamber 18 from a float chamber 16 via a passage 23 and a flow control member 24 or an auxiliary passage 25 and a flow control member 26 and the air is supplied to chamber 18 via a control jet 21 and a passage 19 and a control jet 22 and a passage 20. The air-fuel ratio is controlled by controlling at least one of the jets 21, 22 and the control members 24, 26. As shown, the jet 21 is controlled by a needle 33 whose position is controlled by a pair of solenoids 34b, 34c which receive the operating command signal from circuit 60. As particularly described, all four variables are operative to control the air-fuel ratio. The engine speed is sensed at 40 to provide a pulse signal which is converted at 44 into an analogue signal n. The engine temperature is sensed by a thermistor 45, the throttle position by a potentiometer 46 and the atmospheric pressure by a transducer 48. The electronic computer, 50, Fig, 10 (not shown) includes a function generator, Figs. 7 and 8 (not shown), for each input signal and a summing amplifier which receives the output of each function generator and the dither signal the resulting signal being compared in a comparator in the circuit 60 with a reference level to provide a pulse signal for controlling the needle 33.
Patent GB-1122965-A (GB)
Title: Saccharide products prepared from hydroxypropylated starch
IPC: A23L27/30
Filed: 1967-04-19
Abstract: Hydroxypropyl starch which is 5-40% substituted, is hydrolysed to a product which has a dextrose equivalent of 1-30% and contains 5-35% of fermentables.  Hydrolysis may be effected using acids or enzymes; in the latter case suitably a two-stage hydrolysis is effected, first with a liquefying enzyme, e.g. bacterial amylase, and then with a saccharifying enzyme, e.g. fungal amylase.  The product is suitably in the form of an aqueous syrup containing 60-80% solids, said solids comprising 65-95% hydroxypropylated polysaccharides, 5-35% glucose and not more than 1% maltose.  The starting starch may be hydroxypropylated by reaction with propylene oxides in an aqueous alkaline medium.  In one example hydroxyethyl starch (2% substituted) is further etherified with propylene oxide using triethylamine as catalyst. Corn and potato starch are specified.ALSO:Hydroxyalkyl starch which is 5-40% substituted, is hydrolysed to a product which has a dextrose equivalent of 1-30% and contains 5-35% of fermentables.  Hydrolysis may be effected using acids or enzymes; in the latter case, suitably a two stage hydrolysis is effected, first with a liquefying enzyme, e.g. bacterial amylase, and then with a saccharifying enzyme, e.g. fungal amylase.  The product is suitably in the form of an aqueous syrup containing 60-80% solids, the solids comprising 65-95% hydroxyalkylated polysaccharides, 5-35% glucose and not more than 1% maltose. The starting starch, which may be from potato or corn, may be etherified with propylene oxide in an aqueous alkaline medium; in one example the starch also contains hydroxyethyl groups.  The product may be purified conventionally.
Patent GB-330406-A (GB)
Title: Improvements relating to electric cable joints
IPC: H02G15/196
Filed: 1929-06-12
Abstract: 330,406. Siemens Bros. & Co., Ltd., Riedl, J., and Wood, H. G. June 12, 1929. Cable joints.-In applying sheet insulation B to a joint split bearings F are placed over the cores X of the cable ends, tabs D on the wide end of the sheet B clamped by adjustable rings E to the bearings F, and the sheet wound loosely over the joint by turning the bearings F. The bearings are then removed, the tabs D clamped to the cable ends, and the sheet tightened by stroking the exterior. During application the sheet may be drawn from a bath A of hot insulating compound. While the finished joint is cooling it may be kept immersed in compound. Specification 327,223 is referred to.
Patent GB-311968-A (GB)
Title: A smoker's pipe and cigarette rest and ash receptacle
IPC: A24F19/00
Filed: 1928-06-22
Abstract: 311,968. Blake, G. F. June 22, 1928. Ash-trays ; cigarette &c. rests. - An ash-tray comprises a shell or block 5 of porcelain, earthenware, &c., the upper face of which is provided with a pair of parallel recesses 8, 11, the recess 8 terminating in a bowl-shaped receptacle 10 for supporting a pipe, and the recess 11 serving as a cigarette rest and terminating in a hemispherical receptacle 12 for ash. As shown, the recess 8 gradually increases in diameter and the recess 11 is of uniform diameter.
Patent GB-869395-A (GB)
Title: Improvements relating to the production of chemical coatings on zinc and zinc alloys
Inventor: TRIGGLE ANN MAUREEN
IPC: C23C22/30
Filed: 1959-05-27
Abstract: An acid solution for coating Zn and Zn-base alloys is prepared by dissolving in water CrO3 and Cr2(SO4)3.6-7H2O so that the total content of hexavalent chromium (calculated as CrO3) and trivalent chromium (calculated as anhydrous Cr2(SO4)3) is 2-30 g/l, the ratio of hexavalent to trivalent chromium, calculated in the same way, is 0.2-7.0 by weight, and the pH is 1.8-2.8.  The solution is preferably made up by diluting an aqueous concentrate, and may be replenished by the addition of CrO3 + Cr2(SO4)3 together with H2SO4 if the pH needs adjusting.  Coatings may be formed on Zn foil, Zn-base die castings, and hot-dip and electrolytically galvanized iron and steel.
Patent GB-198582-A (GB)
Title: Improvements in apparatus for disintegrating and screening pulverulent material
IPC: A01C15/16
Filed: 1922-07-01
Abstract: 198,582. Tyler, G. M. July 1, 1922. Impact pulverizers.-Relates to apparatus for disintegrating and screening pulverulent material and of the kind in which one or more sets of horizontal beaters, bars, or knives revolve in planes across the direction of feed of the material within a conical or pyramidal screen through which the finer particles pass into an outer casing or hopper while the larger unbroken particles or tailings are intercepted by the screen and pass to a separate receptacle. Means is provided for creating an air current through the artificial manure or other material under treatment to dry the material and prevent clogging of the screen. The air current may be created bv a rotary fan, or by blades or vanes arranged on a rotary part of the apparatus, or by a combination of fan and vanes. The invention is shown as applied to the apparatus described in Specification 5760/13. The fan f is mounted on the vertical shaft c between the beaters d and the intercepting-plate e, and blades or vanes g are provided on the underside of the plate e. The material is fed through a conical hopper h and over a fixed feed-cone i surrounded by a cylindrical casing j. When two sets of beaters, carried by oppositely-rotating shafts mounted one within the other, are employed, the fan blades may be provided on or near the outer ends or any part of either or both sets of beaters, or on the conical rim surrounding the beaters. The fan may be arranged independently of the beaters.
Patent GB-720062-A (GB)
Title: Alarm watches
IPC: G04B25/04
Filed: 1952-07-17
Abstract: 720,062. Watches. MARSHALL, M. V. July 17, 1952, No. 18132/52. Class 139. A wrist watch has an alarm mechanism including a plunger slidably mounted in the back of the watch case for movement into and out of contact with the wearers' wrist, a spring normally holding the plunger retracted, the spring being of V-form and having one of its arms connected to the back of the watch case and having its other arm connected to the plunger, and a cam in contact with the spring and pivotally mounted within the watch case for swinging movement to impart a yielding or cushioned movement of the plunger into contact with the wrist. A pivoted cam 14, Figs. 1, 3, is oscillated by the alarm mechanism and oscillates a spring 13 to which is attached a plunger 10 which passes through a bush 11 in the back 12 of the case and repeatedly strikes the wearers wrist. In another embodiment, Fig. 4 (not shown), a wire spring carries the plunger.
Patent GB-131792-A (GB)
Title: Improvements in and connected with Sparking-plugs and their Manufacture.
Inventor: GUINNESS KENELM EDWARD LEE
IPC: H01T13/46
Filed: 1918-11-05
Abstract: 131,792. Guinness, K. E. L. Nov. 5, 1918. Sparking-plugs -In order to secure the electrode and its mica insulation in a gastight manner, the gland or plug body is provided with an upstanding flange CF which is deformed so as to grip the enclosed parts. Alternatively, the electrode may be partly hollow, the inner end of the hollow portion being conical, so that a ball on being forced in expands the electrode and thereby clamps it in position. The exposed inner portion of the insulation may be protected by a tubular quartz shield.
Patent GB-1353829-A (GB)
Title: Device for controlling the level of a liquid metal in a pouring installation
IPC: B22D39/02
Filed: 1971-05-28
Abstract: 1353829 Foundry ladles; tundishes E BUHRER 28 May 1971 [1 June 1970] 18193/71 Heading F4B In a casting arrangement, a receiver 10 has a level control shoulder 47 below the bottom of a discharge chamber 11, a passage 48 connects the lower parts of the chambers, and the level of molten metal in the discharge chamber 11 is controlled by regulating the pressure in the receiver 10, and the delivery from the discharge chamber is controlled by a stopper 6. The stopper 6 is operated by a pressure cylinder 9 under the control of a timer 14 and a main control 18, which controls a valve 17 and source of pressure gas 15 to maintain the level in the discharge chamber indicated by a gauge 30. In a modification, a stopper arrangement in the passage between the receiver 10 and discharge chamber 11 enables different levels for the melt in chamber 11 to be selected.
Patent GB-1039215-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/32
Filed: 1965-04-30
Abstract: 1,039,215. Electric incandescent lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 30, 1965 [May 5, 1964], No. 18289/65. Heading H1F. An electric incandescent lamp comprises a reflector formed as a surface of revolution and an incandescent body disposed on the axis of the reflector in such a position that the light emitted by the body is concentrated into a beam, one or more further incandescent bodies being provided inside the lamp bulb to co-operate with one or more further reflectors formed as surfaces of revolution so that the reflected light from at least one of the further bodies is focused at the first body. In a projector lamp, Fig. 1 (not shown), light from the first filament 1 located at the first focus of an ellipsoidal reflector 2 is reflected through a window 5 to the second focus F2 which is situated not more than 20 ems. outside the bulb. Light from a further filament 3 connected in parallel with the first filament and located at the first focus of an annular ellipsoidal reflector 4 surrounding the window 5 is focused at the filament 1. The reflectors comprise reflective portions of the bulb wall. An additional filament 7, Fig. 6 (not shown) may be arranged between the filaments 1 and 3 to raise the temperature of the latter. In a modification, Fig. 5 (not shown), the annular reflector 4 is replaced by two or more ellipsoids 41, 42 with two or more further filaments 31, 32 disposed at their respective first focii, the light from all these filaments being focused at the first filament 1. The filaments may be connected in series or in parallel.
Patent GB-168475-A (GB)
Title: Improvements in or relating to change speed gearing for motor road vehicles
IPC: F16H3/08
Filed: 1920-07-03
Abstract: 168,475. B.S.A. Cycles, Ltd., and Poole, H. July 3, 1920. Variable-speed gearing for motor vehicles comprises gears 8, 17, 19 loose on a driving-shaft 2 constantly in mesh with gears 9, 18, 20 loose on a countershaft 3. The gear 8, which is connected by a sleeve 5 to a sprocket 6 forming the driven element, is adapted to be connected by a clutch 14 to the shaft 2 for a direct high-speed drive. The gear 9 then turns idly and the other gears and shaft 3 are at rest. Between the gear pair 17, 18 and the pair 19, 20 are double clutches 21, 22, one on each shaft and coupled together. To effect two reduced speeds, the clutch 14 is disengaged, a clutch 15 on the shaft 3 is slid into engagement with the gear 9, and the coupled clutches 21, 22 are slid to right or left respectively to engage the corresponding pair of gears. The clutches may be operated by a revoluble cam shaft as described in Specification 13574/13.