baber/WOPTO huggingface dataset:
Patent GB-868763-A (GB)
Title: Improvements in or relating to control arrangements for slip-ring induction motors
Inventor: BLISS LEONARD WILLIAM
IPC: H02P25/26
Filed: 1958-06-06
Abstract: 868,763. Control of A.C. motors. GENERAL ELECTRIC CO. Ltd. June 8, 1959 [June 6, 1958], No. 18141/58. Class 38 (3). Relates to a control arrangement in which power is passed between the rotor windings of an induction motor 1 and the armature 6 of a D.C. motor through a rectifier 5, the induction motor being coupled directly to the D.C. motor which has a shunt field winding 8 connected between variable tappings of a potentiometer 9 providing excitation current in either direction. In normal operation, the voltage at the terminals of the rectifier 5 is just sufficient to overcome the back-E.M.F. of the D.C. motor, but, to run the motor at a speed corresponding to that obtained if the slip-rings 3 were short-circuited, it is necessary to compensate for the voltagedrop across the rectifier. This is achieved by reversing the field excitation of the D.C. motor so that its back-E.M.F. is reversed and has a value corresponding to the voltage-drop. The motor may be started by means of a liquid resistor 11 or by grid control of the rectifier 5. The D.C. motor may be used as an exciter to operate the induction motor as a synchronous machine. This is effected by means of a threepole switch to open-circuit or to short-circuit three of the rectifier arms and permit directcurrent to flow to the secondary windings of the motor 1 through the other three arms, Figs. 2, 3 (not shown).
Patent GB-496413-A (GB)
Title: Improvements in or relating to the conveyance of cigarettes
IPC: A24C5/32
Filed: 1937-06-30
Abstract: 496,413. Conveyers. BEST, C., and MOLINS MACHINE CO., Ltd. June 30, 1937, No. 18169. [Class 78 (i)] [Also in Groups VI and XVIII] Cigarettes are conveyed through a curved path by a conveyer having two adjoining surfaces, in non-parallel planes, against which the cigarettes are yieldingly held by a smooth flexible band or strip which is tensioned in the direction of movement of the conveyer. The cigarettes are removed from a tape 5 by blades 12 on rotating carriers 6, 7 driven through clutch members which slip in the event of a jam. Each blade is provided with an abutment 13 arranged at a distance from the edge of the blade which is less than the diameter of a cigarette, and the cigarettes are held against the abutments by flexible bands of thin spring steel. The carrier 6 has a flexible band 50, Fig. 2, which stretches around it and is anchored at 15 and 16, while the carrier 7 has a flexible band 51 anchored to a fixed point and attached to an adjustable anchorage 17 by a spring, and a flexible band 52 anchored to a fixed point 18 and attached to a slidable anchorage 19 by a spring. The cigarettes are moved over a spring-controlled plate 45, which arrests their axial movement, before they are held by the band against the abutments. Forks 20 at each side of the carrier 7 periodically move a cigarette out of the path through which it is being moved by a blade 12 and deliver it to a testing or weighing device. The forks 20 are fixed to an arm 21 pivotally mounted on the carrier 7 and operated by a cam 24 secured to a gear wheel 25 which engages with a fixed pinion 26. The selected cigarette is moved out of the path of the blades 12 in the space between the bands 51, 52 and is held by the band 51 against projections 120 on the forks while it is carried over part of a curved plate 53. Subsequent forward movement of the cigarette is arrested by projections 220 on the forks, and after the forks have been retracted, the downward movement of the cigarette is arrested by a pivoted guide 35, until the projections 120 again engage the cigarette and deliver it into a scale pan. The numbers of cigarettes of different specified weights amongst those selected are recorded on different counters by the mechanism described in Specifications 425,700 and 425,721, [both in Group XVIII]. To prevent the operation of the recording mechanism when no cigarette has passed beneath the guide 35, the guide 35 carries a stop plate which prevents a bell-crank operating the recording mechanism until the guide has been lifted by a cigarette. The cigarettes engaged by the carriers 6, 7 are delivered down shoots 54, having one wall formed by a weak spring which grips a cigarette until it is discharged by the next cigarette on to a collecting band 8. The forks 20 may be held in the inoperative position by a latch.
Patent GB-1454888-A (GB)
Title: Centre housing for a rotary piston internal combustion engine
IPC: F02B55/08
Filed: 1975-05-01
Abstract: 1454888 Trochoidal IC engines; housings AUDI NSU AUTO UNION A G and WANKEL GmbH 1 May 1975 [2 May 1974] 18175/75 Heading F1F A centre housing for a trochoidal-type I.C. engine, comprises a liner 3 of hardened sheet steel. The centre housing has two mirror-image halves 1, 2 held together by tubes 10. Sealing between  halves 1, 2 is effected by rings 13 in grooves 12 in half 2, the chambers 4 for coolant being thus sealed. The hardened sheet steel liner 3 is shrunk into the halves 1, 2 before they are joined. Seals 13 may be replaced by adhesive in co-operating grooves of the two halves Fig. 3, (not shown). In an alternative embodiment Figs. 4 and 5, (not shown), the liner is provided with an intermediate plate on the transverse centre plane of the housing, each half being adhered to the plate which is  welded or brazed to the liner. An annular strip may be located across the join of the two halves on the internal peripheral surface thereof Fig, 7, (not shown), and the liner may be provided with strengthening external ribs over the "hot-arch" zone Fig. 8, (not shown).
Patent GB-594661-A (GB)
Title: Improvements in alarum devices
IPC: G08B13/02
Filed: 1944-09-23
Abstract: 594,661. Burglar &c. alarms. STEVENSON, A. H. H. Sept. 23, 1944, No. 18190. [Class 118 (i)] In an alarum device a flexible diaphragm is located within a surround, one wall of which is flexible, the diaphragm being capable of being responsive to changes of air pressure on either side thereof to control an electric circuit through an alarum device. In the embodiment shown, Fig. 2, the alarum device comprises a flexible diaphragm h carried by a vented flange j rotatably mounted on ribs a<1> of a panel a in a wall adjoining two rooms of any premises. The panel a is provided with a spiral opening b and has at its centre a tongue c to which is attached a flexible suspension d which carries one end of a mercury-containing tube e, the other end of which is suspended by a link f from a V-bearing g<1> pivoted on a centre disc g ot the diaphragm h. A substantially air-tight fabric membrane k is mounted on a cylindrical flange carried by a second series of ribs a<2> on the panel a The diaphragm h will vibrate if there is any air disturibance n any of the adjoining rooms and the mercury in the tube e will come into contact with a platinum wire terminal m to close the circuit to a visible or sound alarum mechanism. According to the Provisional Specification the diaphragm may be suspended by means of a light wire or counterbalanced spring suspension.
Patent GB-120901-A (GB)
Title: Improvements in the Magnets of Magneto-electric Ignition Apparatus.
IPC: H02K1/27
Filed: 1918-11-06
Abstract: 120,901. Scintilla [Firm of]. Nov. 6, 1917, [Convention date]. Magneto-electric machines.-The sides a, b, c, d of the pole-pieces N, S of the rotating or other magnets used in magneto-electric ignition apparatus are inclined to the plane passing through the centres of both poles and the magnet axis, instead of being parallel thereto for the purpose of allowing an increase in the range of adjustment of the point of ignition. The sides may incline towards the axis, Fig. 2, or away from the axis, Fig. 4.
Patent GB-713452-A (GB)
Title: Improvements in or relating to electrical control apparatus
IPC: H02J13/00
Filed: 1951-08-01
Abstract: 713,452. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., and WILLIAMS H. W. July 18, 1952 [Aug. 1, 1951], No. 18228/51. Class 38(5) [Also in Group XXXV] When the load 10 connected to supply terminals 11, 12 exceeds a pre-determined value, a relay 13 is energized to close its contacts 21. If at the same time, the contacts 20 of a remotely-controlled relay 22 are also closed, a warning device, such as a bell 23. and a time delay relay 16 are energized. This gives time for part of the load to be removed by the consumer to prevent the main contacts 15 being opened by relay 16. If the load is not reduced, however, contacts 15 are opened and are held open by a manually-trippable latch 18. Relay 22 may be voltage or frequency responsive or may be operated by ripples on the supply. A neon lamp 24 is lit when contacts 20 are closed.
Patent GB-128493-A (GB)
Title: Improvements in Wheel Rims.
Inventor: JENNINGS TOM
IPC: B60B25/20
Filed: 1918-11-07
Abstract: 128,493. Jennings, T. Nov. 7, 1918. Tyre attachments to rims.-In rims comprising a pair of side flanges connected by transverse bolts 6, one flange has a removable segment 5 formed with oblique ends 7. In the construction shown, the rim parts are formed integral with disks 9, a sector 10 of one disk being removable with the rim segment 5.
Patent GB-720228-A (GB)
Title: Improvements relating to surgical instruments
Inventor: MUTTON WILLIAM JAMES
IPC: A61C1/14
Filed: 1952-07-18
Abstract: 720,228. Hand-tool handles. NEEDLE INDUSTRIES, Ltd. July 20, 1953 [July 18, 1952], No. 18247/52. Class 61. [Also in Group VI]. A handle for holding a dental probe &c. has a socket for receiving the shank of the tool and this is retained by a laterally directed pressure which may be released by an external operating member when the tool is to be removed. A tool shank 12 is inserted in the socket 16 in the holder 15 and is retained by lateral pressure from a ball 20, the pressure being applied by a cam surface on a rotatable member 22.
Patent GB-1040871-A (GB)
Title: Method of making electrical connections
Inventor: REES DONALD ERNEST WILLIAMS
IPC: H05B3/06
Filed: 1964-05-04
Abstract: 1,040,871. Flexible heating elements. MIDLAND SILICONES Ltd. April 13, 1965 [May 4, 1964], No. 18346/64. Heading H5H. [Also in Division H2] A flexible heating element comprises either a woven or fibrous support of glass or other non- conducting fabric coated with a thin layer of conducting rubber, or a thin sheet of conducting material. The conducting rubber is based on a vulcanizable organosilicon polymer, preferably a high-molecular weight diorganopolysiloxane in which the organic substituents are selected from lower alkyl, alkenyl and phenyl radicals. The layer or sheet of conducting material has electrodes attached thereto by employing a cold-setting silicone rubber rendered electrically conducting (see Division H2).
Patent GB-702563-A (GB)
Title: Improvements in means for discharging wafers from wafer making machines
IPC: A21B5/02
Filed: 1951-08-03
Abstract: 702.563. Machines for making wafers and the like. BAKER PERKINS, Ltd., McVITIE & PRICE, Ltd., and FINLAYSON. J. C. Aug. 3, 1951, No. 18469/51. Class 28(1) Wafers or the like cooked between travelling tongs, which are clamped together after being supplied with batter, are discharged by gravity after being freed from the lower tong by a jet of compressed air disposed at an angle to the plane of the wafer and impinging against the leading edge of each lower tong at its junction with the wafer. As shown, a chain 1 of wafer moulds, formed by pairs of tongs 2, 3, moves in a closed path through an oven 5 after being filled by nozzles supplied with batter from a pipe 6 rotated by a rack 7 which is actuated by a cam lever 8 and cam 9 to displace the batter nozzles into their operative position. The batter supply is controlled by an intermittently driven pump 11 driven from wheel 12 carrying cam 9 so that the operations are synchronized. A boss 13 on lower tong 2 engages rails 14 which guide the upper tong, after batter has been supplied to the lower tong, down on to the lower tong where it is held by locking member 15 and catch 16. The closed tongs are moved through the oven, emerging near the charging station. As the tongs near the charging station they are separated by rails 14, leaving the wafer on the lower tong. A nozzle 19 is located to one side of the path of the moving tongs and aligned to direct a jet 20 of compressed air against the leading edge 21 of the lower tong 3. The wafer, when released, slides down chute 17. The nozzles makes an angle x with the plane of the tongs, Fig. 3, and an angle y with the edge 21, Fig. 4. Two jets may be used one on either side. A blade 34 may be provided to remove the wafer if the jet has not detached it.
Patent GB-898903-A (GB)
Title: Improvements in or relating to bed-conveniences
IPC: A61G9/00
Filed: 1959-05-30
Abstract: 898,903. Bed-pans and urine bottles. VERNON & CO. Ltd., and CATTERALL, F., May 30, 1960 [May 30, 1959], No. 18501/59. Class 26. A bed-pan or urine bottle disposed of after a single use and constructed of a stiff fibrous materialis capable of rapid reduction to a state in which it can be consigned to a normal domestic drainage system without risk of choking it. The said bed-convenience may be moulded in one piece and may be rendered moisture-resistant, e.g. by wax-coating internally. The bed-pan may be moulded from papier-mache or like pulp material and have a dishshaped body portion 20 with an outwardly-directed peripheral lip 22 on which rests an annular insert 25 of the same or similar material to provide a seat. Preferably, the lip 22 has an internal rebate 24 to accommodate the insert 25 substantially flush with its upper surface, and the bed-pan may be used in combination with a complementary non-expendable rigid carrier 26. The carrier 26 is of dish shape with an outwardly-directed lip 27, snugly engaged by that of the pan and reinforced: by integral webs 29 at its underside. The urine bottle may be formed from a flattened tube of stiff paper or like pulp material having bellows folds 33 along opposite sides- and a longitudinal seam 34, one end of the tube being partially closed to leave a restricted mouth 37 and the other end being folded to provide in known - manner a rectangular bottom for the bag overlaid by a tab 35. The mouth 37 may be constrained to a rectangular or diamond shape by bellows folds 33 in conjunction with an inserted stiffening member 38. A loose lining of thermoplastic film may be applied to the tube prior to forming it into a bag and then heat-sealed thereto. According to the 1 Provisional Specification the body portion 20 is preferably somewhat wedge-shaped in side elevation, the body wall is moulded with corrugations and there may be complementary corrugations in an annular top member 25 which is flat or concave. The member 25 may be an outwardly-directed flange integral with the body 20 and there may be moulded gussets below the junction. The urine bottle may be made in one piece or in two sections united edge-to-edge longitudinally, one or each section having a handle. The bed convenience may be coated internally with wax, varnish or a synthetic thermoplastic and this may be utilized with or without heat and/or pressure to unite the two halves of an urine bottle.
Patent GB-501885-A (GB)
Title: Improvements in, and connected with, thermally-tripped automatic circuit breakers and similar electrical switchgear
IPC: H01H53/10
Filed: 1937-11-11
Abstract: 501,885. Thermal switches. CRABTREE & CO., Ltd., J. A. (Schiele Industriewerke) Nov. 11, 1937, No. 18530/38. Divided out of 498,325. [Class 38 (v)] A thermal switch for a three-phase circuit comprises three bimetallic strips 2 mounted at their lower ends on a bar 3 slidable in the casing and biassed by a spring 9b against an adjustable stop 9. Also slidable in the casing is a bar 6 having a lug 6b engaging the end of a blade spring 8a which normally bridges a pair of terminals 7, 8 in a control circuit of an automatic circuit-breaker. Overload in one or more of the phases produces an excess current in the corresponding heating coil 4, causing one or more of the bimetallic strips 2 to bend to the right and by engaging one or more pins 6a to move bar 6 to the right to open the circuit. Movement of the bar may operate a catch to release the circuit breaker. In a modification, the spring 9b is omitted, the bar 3 floating until bending of the strips brings it against the stop 9.
Patent GB-274135-A (GB)
Title: An improved method for making edge-wound coils
IPC: B21C37/26
Filed: 1926-12-07
Abstract: 274,135. Whittingham, G. H. Dec. 11, 1925, [Convention date]. Drawings to Specification. Coiling.-Flat metal ribbon is coiled on edge into a helix by extending one end thereof through a coiling-die and securing it to a rotating mandrel. The die is traversed along the mandrel until the latter is substantially filled with spaced convolutions. The rotation of the mandrel is stopped and the die is retracted to compress the convolutions. Further spaced convolutions are then formed and the steps of the operation are repeated until the mandrel is substantially filled with compressed convolutions. The die is then removed and the coil is allowed to expand and discharge from the bar. The grip of the helix on the mandrel is relaxed before compressing by rotating the mandrel slightly in the reverse direction. The apparatus employed is described in Specification 262,775.
Patent GB-185278-A (GB)
Title: Improvements in nozzles for vacuum cleaners
IPC: A47L9/06
Filed: 1921-07-08
Abstract: 185,278. Turner, H. July 8, 1921. Vacuum cleaning-apparatus. - A vacuum cleaner nozzle adapted for cleaning cellular structures such as telephone relay sets consists of a tube closed at one end, slotted on one side, and of dimensions suitable for inserting the nozzle into and turning it within a cell. It may be formed of an electrical non-conductor such as vulcanized fibre. The nozzle shown comprises a tube with a slot a in its front face, and a cap of wash-leather &c. similarly slotted; a brush c is screwed within the slot. Specification 17176/05 is referred to.
Patent GB-460763-A (GB)
Title: Improvements in or relating to fuel delivering devices and fuel injection pumps for internal combustion engines
IPC: F02M59/46
Filed: 1935-12-24
Abstract: 460,763. Fuel - injection pumps. CROSET, L. P. Dec. 24, 1935, No. 18573/34. [Class 102 (i)] A fuel-injection nozzle 64 is fitted with a spring-loaded valve 65 which is opened by fuel pressure. The end of the fuel injection pump delivery pipe is secured to a connection 52 which has a valve 57 loaded by a spring 56 and arranged so that after moving in the direction of opening it uncovers ports 59. When the valve closes it causes a drop of pressure in the chamber 60 and prevents dribble at the nozzle. The pump shown in Fig. 1, may be employed which includes a delivery valve 8 mounted in a housing 5 held in position by the nipple 12 which is screwed into the end of the cylinder 4. Specification 455,637 is referred to.
Patent GB-202133-A (GB)
Title: Improvements in or relating to drying and carbonizing textile fabrics
IPC: D06C7/04
Filed: 1922-07-07
Abstract: 202,133. Johas-Manville, Inc., and Walsh, J. H. July 7, 1922. Drying fabrics in long lengths.-In drying and carbonizing textile fabrics, the acidulated fabric enters through opening 10, Fig. 2, into a drying-chamber 8, where it passes over guiderollers 16, 17, and is subjected to blasts of hot air from nozzle pipes 25. From thence, through an opening 15, it passes to a carbonizing-chamber 9 provided with guiderollers 18, 19, heating-coils 20, and an educt flue 23, having a damper 24. The coils 20 are steam-heated, and hot air for drying is supplied by steamheated coils 35, Fig. 4, the air being drawn through an opening 56, over exhaust, pipes 48, and around baffles 57 bv a fan 60, a damper 64 being provided. The moisture-laden air is drawn from the chamber 8 through an outlet 49, and pipes 46, by a fan 54 having a baffle 53. The baffle 64 may .be used to close either the opening 62 for fresh air, or the opening 63 for moisture-laden air, so that any proportions of these may be circulated. The chambers may be constructed with angle-irons 5a, Fig. 6, to which slabs 6 of sheet asbestos or other acid resisting material are fitted.,
Patent GB-184033-A (GB)
Title: Improvements in or relating to hand tools for marking or piercing the ears of sheep and other live stock
IPC: A01K11/00
Filed: 1921-07-12
Abstract: 184,033. Wynn, Timmins, & Co., Ltd., and Brown, T. J. July 12, 1921. Marking animals. - In tools for marking or piercing the ears of animals of the kind comprising plier-like handles provided with coacting dies, the movable die is carried by a lever member pivoted to one handle and operatively connected to the other, and interchangeable pairs of dies are provided. As shown a handle a carries a fixed jaw a<2> provided with a through slot a<4> and with a dovetailed recess a<5> to receive a correspondingly formed die b. The end b<3> of the die abuts against the ends of the recess and a screw c removably secures it in position. A complimentary die f is pivoted at g between upturned sides a' of the jaw a<2> and is lap-jointed by means of a slot f<2> and projecting pin d' to a handle d pivoted at e between the sides a<3>. A semi-circular cutout part a<9> in one side a<3> allows the die f to be removed for exchanging it after removal of the pin g.
Patent GB-1095614-A (GB)
Title: Improvements in or relating to joints packed with sealing material and a method of and means for packing such joints
IPC: F16L25/00
Filed: 1966-04-29
Abstract: 1,095,614. Conduit &c. joints. E. G. HAGELIN and E. O. F. LENNGREN. April 29, 1966 [May 5, 1965; May 31, 1965; Jan. 10, 1966], No. 18812/66. Heading F2G. Members 2 have flanges 3 which, when the members are pushed in the longitudinal directions thereof, engage the flanges 1 of ventilating ducts. Each member is provided with sealing material 5 which is heated and caused to expand to seal the joint against leakage. The members include a member 4, which may be W-shape in cross-section, to support the sealing material and a pyrotechnical agent 6 ignited through holes in the members 2. In a modified form, a tubular support member (7), Fig. 5 (not shown), is used and to which a layer of expansible sealing medium (9) is applied, the tube being filled with or containing a layer of a pyrotechnical substance (8) or serving as a conduit for the passage of hot air, steam or other fluid heating medium, or an electrical heater may be inserted therein. A tubular support element carrying a layer of expansible sealing material may be used without a connecting member 2 to seal spaces or gaps other than at joints. Joints around windows may be sealed.
Patent GB-969521-A (GB)
Title: Improvements in or relating to the frame deflection circuits of colour television receivers
IPC: H04N9/28
Filed: 1961-05-25
Abstract: 969,521. Sawtooth circuits; cathode-ray tube circuits. E. K. COLE Ltd., and P. A. TINGEY. May 21, 1962 [May 25, 1961], No. 18841/61. Headings H3P and H4T. In a frame deflection circuit for a colour television receiver employing a shadow mask cathode-ray tube, the effect of centering and convergence circuits on the linearity is minimized by pre-distorting the deflection waveform in a network comprising a voltage-dependent resistor connected in series with the input to the frame amplifier. As shown, the frame sawtooth waveform fed to terminal A is pre-distorted by a network consisting of resistor R1, voltage - dependent resistor VDR1, the height control VR1, the linearity control VR2 and capacitor C2. A linearizing feedback circuit is provided comprising capacitor C3 and top linearity control VR4. The deflection coils FSC1 and FSC2 are connected to bifilar secondary windings S1, S3 of the frame output transformer FT. The primary winding P is damped by a further voltage - dependent resistor VDR2. The direct current in the deflection coils is adjustable by means of a centering control VR3. Convergence waveforms are obtained from terminals B, C, D.