baber/WOPTO huggingface dataset:
Patent GB-559587-A (GB)
Title: Electric motor for food mixers and the like
IPC: H02K11/00
Filed: 1942-02-25
Abstract: 559,587. Controlling motors. DEHN, F. B. (Chicago Flexible Shaft Co.). Feb. 25, 1942, No. 2482. [Classes 35 and 38 (iv)] [Also in Group XXXVII] An electric motor for food mixing and other domestic purposes has a speed control actuated by a rotatable end section of the casing, this section being provided with inlets through which air is drawn by an impeller mounted on the rotor shaft for cooling the motor. The rear end of the motor shaft extends through a main bearing 29 on a spider 25 screwed to the stator 19, and ends in a thrust bearing 44. The shaft between carries the centrifugal speed control switch 94, and is surrounded by a detachable casing portion 17 held against the main casing by screws 37 and key 32, both engaging spider 25. The casing 17 has a reduced portion which is surrounded by the end section 18 rotatable for speed control. The speed control switch 94 comprises an insulating disc 96 fixed to shaft 31 and carrying a lever pivoted about pin 104, Fig. 7. One arm of the lever is a weight 105 and the other arm carries a rigidly mounted button 112 and a flexibly-mounted contact 101 normally engaging fixed contact 99. Contacts 99, 101 are connected, through collector rings 97, 98 and brushes 67, 79, across the ends of a resistance 75 and condenser 76 which 'are connected in series with motor circuit. Button 112 abuts against a cam surface 116 Fig. 1, on the governor 114 which can be moved axially by rotation of the section 18, through cam surface 126, follower 123, yoke 119 and bearing ring 113. As the motor speed increases the weight 105 moves out centrifugally and checks the tendency of contact 101 to fly out by its own centrifugal action. When however button 112 engages cam surface 116 further movement of weight 105 ceases and the contacts 99, 101 can open. This inserts the resistance 75 in series with the motor and reduces the speed. By movement of the section 18 the point of engagement of button 112 can be varied and hence the governed speed of the motor. Disc 96 is provided with balancing extensions 106, 106a which can be adjusted to give dynamic balance at a given speed, preferably near the higher end of the speed range. Impellor blades 117 on disc 96 draw air through the inlets 59 in the end section 18 and drive it over the motor for cooling. A safety switch 87 in series with the motor is switched off when the actuating plunger 128 falls into a depression in an outer cam surface 131 on section 18 ; the contacts of this switch are surrounded'by a fibre cylinder to make it slow-acting. Section 18 is secured to a thrust bearing screw 44 by nut 53, washer 56 and spring washer 55. The end is closed by a spring cap 57. The outside of section 18 is rounded to the general shape of the casing and is provided with ribs 133, in between which are printed instructions as to the operations appropriate to the speed obtained when they are brought against the indicating arrow 132. Lubricant is carried to bearing 44 from oil-hole 49 by a wick 47. U.S.A. Specifications 2,144,733, 2,165,858, and 2,182,083 are referred to.
Patent GB-563636-A (GB)
Title: Improvements in the manufacture of powdered alumina
IPC: B01J2/00
Filed: 1943-02-15
Abstract: 563,636. Tumbling apparatus. GENERAL ELECTRIC CO., Ltd., CHIRNSIDE, R. C., and DAUNCEY, L. A. Feb. 15, 1943, No. 2483. [Class 60] [Also in Group III] Produced alumina, of freely flowing properties which adapt it for use in the known manufacture of artificial gems, is obtained by the steps of (1) igniting a highly hydrated sulphate of alumina ammonium alum or a mixture with ammonium sulphate at a temperature, e.g. 1000‹ C. at which substantially only gamma alumino is produced ; (2) tumbling the product in a vessel containing no other loose material. Colouring matters in small quantity, such as chromium sulphate, may be added to the starting materials. A suitable tumbling apparatus for treating the ignited product comprises a cardboard cylinder 1, closed at each end by a fine screen 2 and supported by a board 3, which is rotated about an axis 5 perpendicular to the axis of the cylinder. The powdered oxide falls into a hopper 7.
Patent GB-1142101-A (GB)
Title: Method of polymerizing butadiene and monomer mixtures containing same
IPC: C08F36/06
Filed: 1966-01-19
Abstract: 1,142,101. Butadiene polymerization using lithium compounds. FIRESTONE TIRE & RUBBER CO. 19 Jan., 1966 [22 Jan., 1965], No. 2561/66. Heading C3P. Butadiene or a mixture thereof with styrene, α-methylstyrene or a vinyl toluene is polymerized in an inert hydrocarbon solvent by initiating the polymerization by a Li-based catalyst by either (a) adding to the reaction mixture either (i) a lithio-hydrocarbon α-acetylide having one Li atom attached to the terminal acetylene C and another Li atom attached to the C, α to the other C of the acetylene group or (ii) an isomeric allene cmpd. capable of existing in equilibrium with the Li acetylide OR (b) adding alkyl lithium to the reaction mixture and reacting therewith (i) a hydrocarbon α-acetylene or a hydrocarbon α-acetylene having a Li-atom attached to the terminal C or (ii) an isomeric allene capable of existing in equilibrium with the acetylene or lithio acetylene, the amt. of the acetylene or allene being from 400-5000 p.p.m. of the monomer. The polymer obtained has a wide M.W. distribution. Initiators specified are 1,3-dilithio-1-butyne, the reaction products of 1-butyne with 3 moles of butyl Li; vinyl acetylene with 2 moles of butyl Li; vinyl acetylene with 3 moles of butyl Li and 1,2- butadiene with 2 moles of butyl Li.
Patent GB-102768-A (GB)
Title: Improvements in Dynamo Electric Machines.
Inventor: MORSE ROBERT VIRGIL
IPC: H02K31/02
Filed: 1916-02-21
Abstract: 102,768. Morse, R. V. Feb. 21, 1916. Homopolar or acyclic machines.-A dynamoelectric machine comprises one or more pairs of homopolar magnetic fields 4 having a common flux circuit for each pair and an armature composed of a number of conductors 3, 3<1> arranged to be connected by means of brushes 6, 6<1> in groups or sets each comprising a number of conductors. The field coil 5, which may be excited with direct or alternating current, is carried in an annular recess in the field structure 4. The stationary brushes 6, 6<1> bear on the ends of the armature conductors 3, 3<1> and are closely spaced circumferentially. By means of conductors 7 connected to the brushes, the armature conductors may be connected in series. The conductors 7 may be carried across the face of the field structure 4 and may be so positioned relatively to the brushes as to weaken the field between the brushes and so prevent sparking. The brushes 6 may be located close to the shaft by extending the armature conductors down towards the shaft. The armature conductors may be arranged in two or more layers, separate rows of brushes being provided for the different layers. The machine may be used as a motor or generator, a rotary transformer, relay, or measuring-instrument.
Patent GB-1428303-A (GB)
Title: Optical scanning systems
IPC: H04N3/09
Filed: 1974-01-19
Abstract: 1428303 Optical scanners BARR & STROUD Ltd 2 Oct 1974 [19 Jan 1974] 02619/74 Heading H4F An optical scanning system in which radiation is directed 10 on to an array of detectors 12, Fig. 1, the outputs of which are amplified by an amplifying device 13 comprising an amplification channel 8, Fig. 2, for each detector output and demodulating signal detecting means 9, and sequentially sampled by a multiplexer 14, Fig. 1, for display on a C.R.T. 15, the display being synchronized by a monitor 16 and synchronizing circuit 17, comprises an A.C. biasing system whereby a fixed frequency A.C. signal is applied to each detector 12<SP>1</SP>, Fig. 2, from a transformer 19, so that the detector outputs are in the form of an amplitude modulated carrier. The detectors RC1-RC4, Fig. 3, are balanced for null output by manually variable resistors RB1- RB4, in the absence of incident radiation. The balancing may be accomplished automatically, in response to the amplifier output by the use of a low pass filter (7, Fig. 4, not shown) in a feed back path from the amplifier output or by the use of voltage controlled resistors and a sample/hold system in a similar feed back circuit Fig. 5 (not shown). Further forms of automatic balancing may incorporate field effect transistors to cause variation of the resistance. The directing comprise a rotatable scanning member 10, Fig. 1, alternatively they may comprise a pivotal scanning member.
Patent GB-1198365-A (GB)
Title: Improvements in or relating to ball joints for motor vehicles
IPC: F16C11/08
Filed: 1968-01-18
Abstract: 1,198,365. Ball joints. LEMFORDER METALLWAREN A.G. 18 Jan., 1968 [19 Jan., 1967], No. 2732/68. Heading E2F. A ball joint for motor vehicles, particularly for suspending and pivoting vehicle wheels, wherein a ball pin 2 is mounted in a bearing bush 4 for movement in all directions in a joint casing 1 and the opposite end of the joint casing to that where the aperture 6 for the passage of the hall pin is provided is closed by a cover 7 supported on the adjacent edge of the bearing brush and automatic re-adjustment of the joint is effected by a spring element 8, is characterised in that the bearing bush consists of a material having good sliding and wear-resisting properties, e.g. metal or a hard plastics material, and in that the spring element is curved and is formed by the bearing bush it self or by a spring element joined to the bush and hearing against the ball head 3 of said ball pin, while, in the unstressed condition the curvature of the surface of the spring element face adapted to contact the ball head is sharper than the curvature of the 'ball head. As shown in Fig. 1, the spring element may be constructed as an annular curved disc extending towards the ball head and integral with the wall of the bearing bush and it may be provided with open radial slots, the resulting tongue-shaped segments 10 applying the necessary spring force. The curved ibearing bush may also be provided with open slots at its end opposite to that where the closure cover is situated, the bush tongues thus formed, in the unstressed condition. having a curvature which is sharper than. the curvature of the ball head.
Patent GB-1091790-A (GB)
Title: Continuous casting mold having ribs
IPC: B22D11/041
Filed: 1965-01-21
Abstract: 1,091,790. Continuous casting mould. UNITED STATES STEEL CORPORATION. Jan. 21, 1965 [Jan. 29, 1964], No. 2774/65. Heading B3F. A continuous casting mould of oblong crosssection has internal ribs 22 with cooling passages 30 which serve to advance the solidification zone of the metal to the spaces between the forward edges of the ribs, to obtain a more regular distribution of impurities and alloying constituents. The walls of the mould are of copper and are supported in a shell structure 49 as by bolts 53.
Patent GB-512396-A (GB)
Title: Improvements in or relating to strip coilers and particularly hot strip coilers
IPC: B21C47/08
Filed: 1939-01-26
Abstract: 512,396. Reeling strip. WILLIAMS, W. P. (American Rolling Milling Co.). Jan. 26, 1939. No. 2781. [Class 83 (iv)] In a reeling device for hot strip metal, feed rolls 5, 6 deliver the strip past a guide 72 and between rollers 16, 17 to a flexible guide strip 22 anchored at one end to a member 24 adjustable on a pin 27 and at the other to a rod 30 held in pivoted arms 32 adjusted by a quadrant 34. The strip is deflected by the guide 22 and is coiled, the arms 32 being adjusted as the coil diameter increases. The coil which during winding is supported by the rolls 16, 17 is expelled by a pusher 49 operated from . a pressure cylinder 50 and rolls on to a delivery table 57. Liquid jets 43 prevent the strip adhering to the guide. In a modification, rollers are secured to the guide 22 to prevent friction, Fig. 5 (not shown). Two reelers may be arranged in tandem a switch 47 being provided for deflecting the strip from the reeler A through a guide 45 to a second reeler.
Patent GB-576086-A (GB)
Title: Improvements in the production of branched chain hydrocarbons
IPC: C07C5/27
Filed: 1942-03-04
Abstract: A catalyst for the isomerisation of normal hydrocarbons consists of a volatile anhydrous metal halide incorporated upon or admixed with a solid porous material composed of oxygenated compounds of aluminium and silicon, or of aluminium or silicon, with a proportion of titanium exceeding 5 per cent and not exceeding 25 per cent of the total solid porous material.  A suitable catalyst comprises a halide of Al, Fe or Be on Bauxite of Indian origin having a substantial content of titanium dioxide, or on a dried gel obtained by precipitation from a mixed solution of an aluminium and a titanium salt by means of caustic soda.  A gas or vapour containing aluminium chloride may be passed through the support, excess of chloride being avoided.  Activators such as hydrogen halides and (or) water may be added.  Examples are given of the isomerisation of butane to isobutane.
Patent GB-376664-A (GB)
Title: Improved means for operating awnings or extending blinds for shop and for like purposes
IPC: E06B9/76
Filed: 1931-07-31
Abstract: 376,664. Window blinds. ADAMS, J. S., 3, Emerald Street, London. July 31, 1931, No. 2875/32. Divided on 366,142. [Class 52 (v).] A blind or awning roller has a worm wheel &c., rotated by gearing, to operate the blind &c., removably connected to one end by interengaging dogs which rotate in a collar carried by the bracket which supports the worm wheel. In the construction shown a worm 28, rotated by a crank handle 20 through universally connected shafts 23, 22, engages a worm wheel 29 provided with dogs 4 which engage with dogs 3 carried by a cap 2 secured to one end of the roller 1. The dogs 3, 4 rotate in a collar 5 carried by a bracket 7 which supports the worm 28. The worm wheel 29 may be additionally supported by a locating pin 9 driven in the end of the roller. A change speed gear may be incorporated with the crank 20. In the construction shown in Fig. 3 the crank is secured to a shaft 33 carrying two gear wheels 34, 40, the wheel 34 engaging a gear wheel 35 freely rotatable on a spindle 36 connected through gearing, to the shaft 23 and having a square extension on which is slidable a gear wheel 39 provided with dogs 41 to co-operate with dogs 42 on the wheel 35. The wheel 39 is, in :its lowermost position, in engagement with the wheel 40 so that the spindle 36 is rotated, by the crank, through the gear wheels 40, 39. When the wheel 39 is raised to clear the wheel 40 the dogs 41, 42 engage to connect the wheel 35 to the spindle 36 which is rotated, by the crank, through the wheels 34, 35. The wheel 39 is moved by a lever 43 rocked bv a rotatable handle.
Patent GB-903109-A (GB)
Title: Improvements in or relating to cameras having light sensitive devices generating signals for varying exposures
Inventor: HEEKS THOMAS RALPH
IPC: G03B7/085
Filed: 1960-01-26
Abstract: 903,109. Automatic light intensity control systems. SMITH & SONS (ENGLAND) Ltd., S. Jan. 25, 1961 [Jan. 26, 1960], No. 2880/60. Class 38 (4). [Also in Groups XX, XXIV and XL (b)] The amount of light passing through a camera lens is detected by a photo-cell and the output of the cell is used to control a slipping clutch in drive means which adjust the lens aperture to maintain the amount of light constant. Light passing through the camera lens 24, Fig. 1, and diaphragm 18 falls on a photo-electric cell 22 mounted on the rotating shutter 21. The output of cell 22 energizes a coil 12 rotatable in the field of a fixed magnet 11. Relative movement between coil 12 and magnet 11 tensions a cord 15 causing the shaft 14 of the camera motor to adjust diaphragm 18 until the current in coil 12 falls below that needed to keep cord 15 gripping shaft 14. Alternatively, Fig. 2, the coil and magnet may be independently rotatable coaxially with shaft 14 and any relative movement between them winds up a spring 36 gripping shaft 14 which rotates the coil and magnet bodily and adjusts diaphragm 18 through gears 35. Two such couplings may be used to give positive drive in both directions, Fig. 3 (not shown), and a mirror may be placed on the shutter to direct light to a fixed photo-cell, Fig. 4 (not shown). Reference has been directed by the Comptroller to Specification 870,033.
Patent GB-162401-A (GB)
Title: Improvements in or relating to hand wheels
IPC: G05G1/10
Filed: 1920-01-30
Abstract: 162,401. Dover, H. W. Jan. 30, 1920. Hand -wheels.-Relates to hand-wheels for controlling motor vehicles, stop-cocks, aircraft. boats, gun mechanism, &c. The hub a is formed with a peripheral groove b with. flanges d which are bent by dies &c. towards each other to fit closely round the ends of the spokes as shown in Fig. 1. The parts may be further secured together by welding, brazing, &c. Spokes of any suitable form may be used but they are preferably formed as in Specification 162,499. The spokes may be notched at the end to fit the bottom of the groove b and may be secured to rims of the forms in Specifications 2623/06 and 162,544. The whole wheel with the exception of the ends of the hub may be encased with celluloid, exonite, &c. and may be wrapped spirally with tape &c. before being encased. Ribs may be formed in the inner portion of the rim to facilitate grip.
Patent GB-1132671-A (GB)
Title: Material for use in storage heaters
IPC: C09K5/14
Filed: 1967-01-19
Abstract: 1,132,671. Storage heaters. KNAPSACK A.G. 19 Jan., 1967 [5 Feb., 1966], No. 2921/67. Heading F4U. The core of a storage heater is formed of or contains ferrosilicon, which may be east or granulated, e.g. atomized from the molten state. If granulated, the ferrosilicon may be sintered or compressed together with a temperature stable binder. The ferrosilicon has a silicon content of between 8 and 50% by weight, preferably between 10 and 30%.
Patent GB-617322-A (GB)
Title: Improvements in and relating to automatic control systems for high frequency electrical induction heating installations
IPC: H05B6/04
Filed: 1945-11-23
Abstract: 617,322. Control systems for high-frequency heating apparatus. BRIGGS, G. Nov. 23, 1945, No. 3025/48. Divided out of 617,245. Drawings to Specification. [Class 38 (iv)] The subject-matter is the same as contained in Specification 617,319, but the claims differ.
Patent GB-236481-A (GB)
Title: Improvements in and relating to concrete and the like block moulding machines
IPC: B28B1/04
Filed: 1925-02-03
Abstract: 236,481. Martin, C., and Snowdon, R. W. Feb. 3,1925. Tamping machines; moulds.-The mould 7 fixed on the frame 1, 2 of the machine is provided with a movable bottom plate 9 which is raised by a hand-lever 20, arm 16, links 14 and rod 11 in order to remove the block from the mould. The cover 26 of the mould is movable on vertical guides 21 and is held in the raised position by a hooked lever 32, 33 on the frame of the machine engaging an eye 31 on the cover. The cover is released and allowed to fall upon the material in the mould, and this operation may be repeated.
Patent GB-213060-A (GB)
Title: Improvements in or relating to means for measuring and controlling the rate of flow of liquids
IPC: G01F1/37
Filed: 1923-02-01
Abstract: 213,060. Bailey, R. W., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 1, 1923. Ball and float valves; closure members.-Apparatus for measuring and controlling fluids comprises an orifice 11, Fig. 1, the effective area of which is varied by a shutter 14 adjusted in accordance with the difference between the pressures on opposite sides of the orifice. The shutter actuating mechanism comprises floats 7, 8 which may be connected to a floating lever 18 carrying a bevel wheel 19 engaging a bevel wheel 20 slidably mounted on a shaft 21 connected to the shutter by bevel and rack and pinion gearing. In one modification, the floats carry racks engaging pinions on shafts which operate the shutter through differential gearing, and in another, the actuating mechanism comprises endless bands 38, 39, Fig. 3, pulleys 46, 47, bands 48, 49 and a lever 50 pivoted to a shutter rod 13. In all forms, the shutter is provided with anti-friction members 17, Fig. 5, and with flexible joint-making strips 16. A suitable moving member actuates an indicator and/or recorder, and a general rise or fall in pressure unaccompanied by an alteration in the pressure difference may be utilized to diminisli or increase the supply of fluid.
Patent GB-896566-A (GB)
Title: Improvements in or relating to electric thermal cut-outs
Inventor: GRECH SALVINO PAUL
IPC: H01H37/60
Filed: 1960-01-28
Abstract: 896,566. Thermal switches. WARD & GOLDSTONE Ltd. Nov. 29, 1960 [Jan. 28, 1960], No. 3046/60. Class 38 (5). A thermal cut-out for an electric hair-drier comprises a spring-loaded insulating plunger 16 normally retained within the hollow centre 10 of a refractory carrier 6 for a heater winding 5. A bimetal strip 18 having a hole near its free end normally retains the plunger 16 by engaging a metal cross-pin 15 fitted therein so as to bridge between contact 17 and strip 18. Contact 17 is connected to one end of the heater and strip 18 is anchored to a bracket 13 which supports the carrier 6 and to which one supply lead is connected. Should the apparatus overheat the strip 18 bends to release pin 15 and plunger 16 moves to break the bridging connection. A plastic grille 24 may limit the plunger movement by engaging a shoulder 26 thereon. The switch is reset by manual return of the plunger to its latched condition shown.
Patent GB-844527-A (GB)
Title: Improvements in and relating to sliver twisting or yarn spinning devices in centrifugal can spinning frames
IPC: D01H1/08
Filed: 1957-01-28
Abstract: 844,527. Textile centrifugal spinning. GARDELLA, A., and GARDELLA, C. Jan. 24, 1958 [Jan. 28, 1957], No. 3047/57. Classes 120(1) and 120(2). To give the sliver the necessary initial twist for starting, or for restarting after accidental breakage or doffing, a vertical rotatable guide-tube 31, Fig. 1, is positioned near the drafting-device 127 to receive sliver moving downwardly therefrom; means, such as a helical rib 37 are provided in the tube for twisting the sliver extending therethrough in the same direction as the tube rotates, and the can 1, Fig. 2, which is disposed coaxially of the tube to receive the sliver emanating from its lower end, has openings 26 centrally of its bottom through which end the tube air is caused to flow downwardly by means such as a fan 227. The tube 31 is mounted in a bushing 33 to be rotatable by a pulley 131 in the same direction as the can 1 which is mounted in bushings 4, 5 is rotated by a pulley 8. At its lower end the tube telescopes into a tube 39 depending into the: can from a member 40 which can be reciprocated to form the cheese. The bottom of the can is closed by a plate 11 resiliently mounted in a movable support 12. The tube 31 is rotated continuously or only when it is required to start or restart spinning; a length of sliver in the tube, newly-introduced or remaining after breakage, is twisted through contact with the rib 37; as the cam is rotated linings 23a, 24 between the can and its closure engage centrifugally to give a tight joint which is strenghtened as the cheese forms and engages headed members 25. The joints at the top of the can and at 33 and 40 being substantially air-tight and bellows 47, 48 being provided, air is drawn through the apertures 60 by the fan 227, and material F continues to be drawn into the tube 31. The tube 39 is freely rotatable in its bearings to prevent back-coiling from the cheese when free passage of the material is obstructed. It is however braked by a member 43 to prevent it rotating in normal working. A stop-mechanism for the drafting-device operable if the sliver fails properly to enter the tube 31, consists of a feeler 49 on an arm of a lever 50 of which the other arm normally supports a link 54 maintaining a pawl 51 out of engagement with a rotating wheel 53. When material builds up against the feeler, the lever 50 is moved to the right and the link 54 falls to allow a weight 50 to move the pawl to stop the wheel 53 and thus to stop the drafting-mechanism. For doffing, the material is severed between the rollers and the can by stopping the drafting mechanism.