baber/WOPTO huggingface dataset:
Patent GB-1460130-A (GB)
Title: Shaft coupling in particular for the bottom rollers of spinning machines
IPC: D01H5/82
Filed: 1975-08-06
Abstract: 1460130 Roller couplings W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER OHG] 6 Aug 1975 [16 Aug 1974] 32920/75 Heading F2U A shaft coupling for connecting together rollers 1, 2 of a spinning machine comprises an extension 3 on one roller engaged in a bore 4 of the next roller and retained by a screwthread 5, an inner race 6 of a bearing 7 being firmly engaged by the end faces of the rollers and formed with a concave surface 12 to allow the race to tilt when assembling if the end faces of the race and rollers are out of true.
Patent GB-647512-A (GB)
Title: An improved electromechanical control device
IPC: G05B1/02
Filed: 1947-12-15
Abstract: 647,512. Electromagnets. GRETENER, E. Dec. 15, 1947, No. 32975. Convention date, Oct. 5, 1946. [Class 35] [Also in Group XXXVII] An electromechanical control device comprises an electromagnet with an armature which, in its initial movement towards the attracted position, is not mechanically loaded and which is returned to its initial position at regular intervals by separately operable mechanical means. Figs. 2, 3 show an electromagnet 1 and an armature 2 which is supported by a spring 3, the free end of which is arranged to push a cross-piece 8 after this free end has moved through a distance 10 at the commencement of the armature movement. Fixed to the cross-piece 8 is a contact spring 9a of a contact unit 9, the contacts of which can only be closed when a gap in a flange 12 of a continuously rotating control disc 11 coincides with the cross-piece 8. These contacts remain closed by the engagement of the inner periphery of the flange 12 with the cross-piece 8 except when the latter coincides with the flange gap and the magnet retaining force is below a predetermined value. The armature is returned to its initial position by a lobe 5 of a disc 6 also continuously rotating by the same shaft 7 driving the control disc 11. In a modification, Figs. 5, 6 (not shown), the device without a contact unit is arranged for mechanical control purposes wherein a continuously rotating disc cam transmits torque to a sprocket-wheel through a friction disc. When the electromagnet is energized a pawl at the free end of the armature spring engages a sprocket and blocks the rotation of the sprocket-wheel, the armature being returned to the initial position every revolution of the cam disc by a lobe on the latter, thus intermittently eliminating the blocking of the sprocket-wheel. In this application, the commencement of the armature movement takes place without it being loaded by the control mechanism.
Patent GB-942146-A (GB)
Title: Mechanism for feeding transfer material to typewriters and other recording machines
Inventor: FISHER ALBERT EDWARD
Filed: 1960-09-26
Abstract: 942,146. Carbon paper mechanisms. ALACRA Ltd. Dec. 21, 1961 [Sept. 26, 1960], No. 33013/60. Heading B6F. In a carbon web releasing mechanism which is operated by the carriage-return movement as described in Specification 920,533, two pawls 20 mounted or forming a vertical sliding C-shaped member 19 are arranged for alternate holding engagement with the teeth 18 of a ratchet wheel on the carbon roll shaft. The teeth of the ratchet wheel are at positions which are out of phase in relation to the pawls so the wheel may rotate half a pitch at a time. The member 19 is biased by a spring 23 to an actuating member 25 which is operated by a bell-crank lever 29, 28 when the end 30 thereof engages a stop 31 at the end of a carriage-return movement. The teeth 20 and the ratchet wheel are designed so that the wheel is actually rotated by the interengaging of the two teeth. To effect complete release of the ratchet a crank 35 is operated and both pawls 20 are clear of the ratchet wheel teeth.
Patent GB-366506-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H73/38
Filed: 1930-11-03
Abstract: 366,506. Automatic circuit-breakers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Schwennker, C. F.; 126, Park Avenue, Schenectady, New York, U.S.A.) Nov. 3, 1930, No. 33033. Convention date, Nov. 1, 1929. [Class 38 (v).] Arc-rupturing devices.-For opening a circuitbreaker at or near the zero of the A.C. cycle, an overload magnet 22, energized from the line which the breaker controls, has two armatures 23, 28 attached respectively to a holding, and tripping, lever 20, 26, both pivoted at 21 and serving to release a bell-crank lever 17 holding the contact 2 in closed position against the action of an opening spring 12. On overload, the armature 23 is lifted against the force of a spring 24 at or near the peak of the wave, so that the lever 20 is moved out of the way of the face 19 of the lever, whereupon the latter moves slightly until held by the end of the lever 26. At or near the zero of the wave, the spring 12 overcomes the holding force of the magnet 22 and causes the surface 19 to slip past the end of lever 26, whereupon the floating lever 8 moves about the pivot 9 under the action of spring 12 and separates the contact 2 from contact 3. The opening shock is absorbed by a buffer 12<1>. The switch is reclosed by downward movement of rod 15 rotating lever 14 about its pivot 14<1>, thereby stressing spring 6 and rotating the lever 8 about the lower pivot 10 until the lever 17 re-engages the lever 20. Lever 8 on release of the rod 15 is rotated about the pivot 81 by the stressed spring 6 to bring contact 2 into engagement with contact 3.
Patent GB-506647-A (GB)
Title: Improvements in or relating to pumps
IPC: F04C2/32
Filed: 1937-11-30
Abstract: 506,647. Revolving-cylinder reciprocating pumps. POSCH, O. Nov. 30, 1937, No. 33141. Convention date, Nov. 30, 1936. [Classes 8 (i) and 102 (i)] In a fuel-injection or other pump comprising a cylindrical member 11 I eccentrically disposed within an annular member 13, these two members being coupled by one or more piston. like projections 14 on one member slidably engaging a cylinder-like recess 12 in the other member as the two members rotate together inside a casing 18, 19, 21, said cylinder-like recess being periodically, placed in communication with inlet and outlet ports 17, 23, the axes of rotation of the two members are normally fixed relative to each other and the pistonlike projection provides an articulated coupling between the two members. The projection 14 may be of substantially cylindrical or spherical form theoretically making line or point contact with the member to which it is connected, the corresponding recess 12 being a transverse slot or a cylindrical radial bore. A shallow groove 16 of substantially kidney-shape may be formed in one or both of the side walls 19, 21 to periodically connect the recess 12 with the inlet port 17, the outlet port 23 being arranged coaxially of the member 11. The delivery may be regulated by means of a byepass valve in the delivery pipe, or means may be provided for manually or otherwise varying the eccentricity. of the two members 11, 13. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specification 506,716, and states that the invention may be applied to compressors. This subject-matter does not appear in the Specification as accepted.
Patent GB-1381130-A (GB)
Title: Device for stirring and aerating liquids in mass-exchanging apparatus
IPC: B01J19/18
Filed: 1972-07-15
Abstract: 1381130 Aerating, agitating and circulating liquids E L MIKHAWOV VI BOIKO PI NIKOLAEV I A MELNIKOV V A EREMIN V G REVAZOV J I JURIEVICH and G E LOSEV 15 July 1972 33250/72 Heading B1C An apparatus for immersion in a liquid has a rotatable shaft 1 with spaced impellers each comprising a disc 2 with blades 3, and draft tubes 7 cooperating with baffles 6 to provide annular slots through which liquid is discharged by the impellers. Aerating gas is introduced from ring manifold 11 through orifices 10 round the peripheries of the baffles 2. The impeller blades 3 may have frusto-conical shrouds 4 and there may be guide vanes 8 in the annular slots.
Patent GB-474708-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B9/10
Filed: 1936-12-04
Abstract: 474,708. Knitting-machines. LEILICH, W., ULBRICHT, E., and NEUHAUSS, A. Dec. 4, 1936, Nos. 33254 and 33255. Convention dates, Dec. 5, 1935 and May 30, 1936. [Class 74 (ii)] A circular machine having two rows of needles arranged at an angle to one another has one needle bed formed with arcuate tracks in which curved needles, e.g. rib needles, and, if desired, loop transferring members are slidably disposed. As shown in Fig. 1 arcuate needles 4 and loop transferring members 6 are mounted in grooves 8 of a curved ribbing disc positioned above a needle cylinder 1, each needle having a butt 4 for engagement with a pivoted jack 9 that is operated, through a slide 13, by a stationary cam ring 18 under control of pattern mechanism. The loop transferring members 6 are extended beyond the upper face of the disc 3 so that they may be moved, by butts 13<11> on the slides 13, within range of cams 31, 33, 35 supported by the cam ring 18. When a slide 13 is moved radially inwards, it positions the extremity 6<111> of the member 6 so that it can pass into and be retained by a grooved guide 30 until a cam 31 co-operates with a butt 6<11> to depress the transferring member 6. On completion of the transfer, the member 6 is retracted by the butt engaging a cam 33 and is pushed radially outwards by a cam 35. The cam ring 18 is provided with an operative track 20 and an idling groove 19 having communicating passages 22, 23, 24, Fig. 2, the butts 13<1> being moved from one track to the other only when they are raised by a control member engaging butts 39 on the head of the slide 13. Fig. 6 shows a modification with longer needles having butts 41 that can be moved from an idling track 531 to an operative track 53<11> by pattern mechanism engaging needle butts such as 4<111>, each needle having an inclined portion 4<IV> for lifting the butted end 6<VI> of the loop transferring member into a cam groove 56<1> when the needle is advanced to operative position.
Patent GB-1147455-A (GB)
Title: Improvements in or relating to microscopes
Inventor: MALIES HAROLD MICHEL
IPC: G02B7/14
Filed: 1965-08-04
Abstract: 1,147,455. Microscopes. W. WATSON & SONS Ltd. June 30, 1966 [Aug. 4, 1965], No.33325/65. Heading G2J. [Also in Division F1] A microscope, Fig.2, includes two objective lens assemblies 11, 12 of differing magnification, mounted on a rotatable mount 30, remote-controloperated rotating means to move the mount to position either assembly in the optical path and means for locking the assembly in the path. As shown, the rotating means comprises a circular locking plate 42, mounted on an arm 31 on mount 30, and carrying a crank plate 44, having pallets 54, 53, which when plate 44 is rotated disengage a roller (48, Fig. 5 not shown) in a catch-bar 40 from a notch (50) in plate 42 which then rotates together with mount 30 until the roller engages a notch 49 in plate 42, locking the high magnification objective 12 in position. The remote control Fig.1 (not shown) comprises a high-pressure air supply (1), adjustable pressure regulator (2), foot operated switch (3) selectively connected via a vent (5) to atmosphere or by a small bore pipe (4) to an operating cylinder (8) via a needle valve (7), the piston 29 of the cylinder being linked by a connecting bar 9 to the lens charge and lock mechanism. The cylinder (8, Fig. 3 not shown) comprises a cylindrical bore in a body (18), input port (19) needle valve (7), and spring (28) biased plunger (27) connected to a shaft (29) and a bellows (26) within the bore. Instead of pneumatic operation, fluid or electro-mechanical operation may be used.
Patent GB-1353628-A (GB)
Title: Generation of an oscillation having a controlled frequency
IPC: H02P25/024
Filed: 1971-07-16
Abstract: 1353628 Control of AC motors FARBWERKE HOECHST AG 16 July 1971 [18 July 1970] 33483/71 Heading H2J A control system for a synchronous motor 3 supplied from a mains-powered current converter 15 comprises a counter 2 and storage device 10 which produce synchronizing signals controlling the frequency and phase of the converter output and a protection circuit responsive to failure of the mains supply 12 to derive synchronizing signals representative of the phase and speed of rotation of the motor when it is free-running, the latter signals being stored in the device 10 so that when the mains supply is restored the last signal stored prior to restoration is used to control the converter 15, high acceleration and hunting of the motor thus being avoided. A mains failure detector 11 controls the state of switches in conductors 4, 6, 13, 14 and 16 so that conductors 4, 13, 14, 16 are open-circuited when mains failure occurs and the normally-open conductor 6 is closed. With the mains supply present, a pilot signal on conductor 1 causes the value in counter 2 to be increased at a constant rate until it reaches a total equal to that stored in the device 10. When this occurs the counter 2 generates a synchronizing signal for application to the converter 15 over conductor 14 and is simultaneously reset to commence another cycle of counting and signal production. The synchronizing signals are thus determined by the frequency of the pilot signal and the value stored in the device 10, which value is applied over conductor 16 to set the desired speed of the motor 3. If the mains supply fails, the connections between members 2, 10 and 2, 15 are broken and a trigger unit 5, which receives from the motor 3 signals indicative of its phase and rotational speed, is connected to members 2, 15, the latter connection keeping members 3, 15 in step and the former connection causing the counter 2 to be reset by each pulse from the unit 5, which pulse also opens a gate 8 to apply the total reached in the counter 2 to the device 10, Thus when the supply is restored, members 2, 15 are controlled by the last value stored in the device 10 by the action of members 2, 5, which value can be subsequently changed so that the motor 3 is uniformly accelerated to regain its former speed. The system described is a digital one, but an analogue system could be obtained by making member 2 an integrator circuit with the pilot signals in the form of a constant D.C. voltage. The system may be used during normal switching off of the motor to ensure smooth starting when next switched on. The system may be used to control an oscillator in place of the motor 3.
Patent GB-773957-A (GB)
Title: Improvements in or relating to tea rolling machines
IPC: A23F3/12
Filed: 1955-11-23
Abstract: 773.957. Tea-rolling machines. DEWAR, D., BRITANNIA ENGINEERING CO., Ltd., and MARSHALL SONS & CO., Ltd. Nov. 23. 1955 [June 1, 1955], No. 33578/55. Class 129 In a tea-rolling machine of the type comprising a horizontal table 1 with a central cone 2 or the like and a cooperating hood, the table has a discharge opening with a sliding shutter both of which are sectors of a circle whose centre coincides with the axis of the cone 2 about which the shutter pivots so as to slide arcuately across the discharge opening. As shown, the shutter disc 5 having three solid sectors fits on the underside of the table within a flange 4 and over a central boss 8 where it is secured by a bolt 10. The shutter and table each have three open sectors 11 and 3 respectively. Shutter 5 is operated manually by a hand lever 13 and is locked tightly in the closed position by taper cams or wedges 15 depending from the shutter and engaging taper arms or wedge 16 carried on brackets 17 bolted to flange 4.
Patent GB-835987-A (GB)
Title: Lubricating oil composition containing rust inhibitors
IPC: C10G71/00
Filed: 1958-10-21
Abstract: A lubricating composition, having rust inhivitive properties, comprises a major proportion of lubricating oil, 0.005-1.0% by weight of an alkyl mercaptoacetic acid RSCH2COOH, where R is a C9-C17 branched alkyl group, and 0.005-1.0% by weight of a calcium or barium dialkyl naphthalene sulphonate wherein the alkyl groups are branched and contain 6-12 carbon atoms.  The lubricating oil may be animal, vegetable, mineral or synthetic: specified synthetic lubricating oils are diesters (e.g. di-2-ethyl-hexyl sebacate), complex esters, silicones and phosphorus compounds (e.g. C8 oxo alkyl diphenyl phosphate). The composition may also contain viscosity index improvers, pour-point depressants, extreme pressure agents, antioxidants and foam inhibitors.  In the examples, mineral lubricating oil compositions are described containing C13 oxo alkyl mercaptoacetic acid and barium dinonylnaphthalene sulphonate, the nonyl groups of the latter being branched.  Some of the compositions of the examples also contain a silicone foam inhibitor or a zinc dialkyl dithiophosphate derived from a mixture of isopropyl alcohol and methyl isobutyl carbinol.
Patent GB-973594-A (GB)
Title: Improvements in or relating to friction devices
Inventor: MILLINGTON ARTHUR WILLIAM
IPC: F16H61/662
Filed: 1962-09-01
Abstract: 973,594. Variable-ratio friction gearing. FAIRBAIRN LAWSON Ltd. Sept. 2, 1963 [Sept. 1, 1962], No. 33643/62. Heading F2D. Means for detecting slip in a variable ratio friction gear comprises means responsive to the ratio to which the gear is set which cooperates with means responsive to the actual output: input speed ratio or, if the input speed is constant to the output speed, to give a signal or to stop the machine if the difference between the ratio set and the actual ratio exceeds a predetermined amount. As shown in Fig. 1 input and output conical rollers 10, 11 are interconnected by a belt 12 shifted by a lever 13 to vary the ratio. A rod 16 carrying a ratio indicator 17 is shifted longitudinally corresponding to the ratio set by means of a cam 14 on the lever 13. A bevel side wheel 21 of a bevel planetary gearing is rotated by means of toothed belts or chains 35, 18 by the input roller 10, a bevel planet carrier 26 is driven by a toothed belt or chain 22 from the output pulley 11, and the output bevel side wheel 28 drives a centrifugal governor 32 which controls a disc 33 adapted to engage electrical contacts 37, 45 of the ratio indicator 17. For any ratio set, if slip occurs in the friction gearing the govenor 32 is rotated more slowly than it should be and the disc 33 closes the contacts 37 to complete an electrical warning circuit or stop the machine. Contacts 45 are provided to complete the warning circuit or stop the machine in the event of the belt 12 breaking or the slip being so excessive that the governor is driven in reverse and increases in speed. In a modification for applications in which the input speed is constant, the bevel differential arrangement may be dispensed with and a centrifugal governor driven by the output shaft may co-operate with the ratio indicator 17, which will have only one set of contacts.
Patent GB-618828-A (GB)
Title: Improvements in portable wardrobes, cupboards and the like
IPC: A47B43/04
Filed: 1946-11-13
Abstract: 618,828. Collapsable cabinets. KRANTZ, H. Nov. 13, 1946, No. 33699. [Class 52 (i)] In a fabric covered cupboard or wardrobe structure of the kind wherein sideframes 2 are held apart by foldable top and bottom links 4, 5, 15, 16 the top links are maintained in their erected position by hinged stays 8, 9. The top and bottom links are inwardly cranked to accommodate the stays and prevent trapping of the covering fabric when the structure is collapsed.
Patent GB-802278-A (GB)
Title: Improvements in or relating to clamping or adjusting means for varying engagement between relatively movable members
IPC: F16B4/00
Filed: 1955-11-25
Abstract: 802,278. Adjusting bearings. SYKES, A. E. Nov. 26, 1956 [Nov. 25, 1955], No. 33827/55. Class 12 (1). [Also in Group XXIV] A split bearing bush 59 engaging a shaft 58 is adapted to be adjusted relative to its housing 65 by pressure fluid admitted through pipes 66 to behind a distortable sleeve 62 fitting around the half-bushes 59. Collars 60 on the shaft also engage distortable rings 64 on end thrust rings 63 on the housing and pressure fluid is supplied behind the rings 64 by pipes 67. The sleeve 62 and rings 64 are sealed at their edges to the supporting housing or rings. The distortable sleeve and rings could be arranged on the rotatable shaft 58 instead of on the stationary housing.
Patent GB-741980-A (GB)
Title: Improvements in the manufacture of pulp from fibrous ligno-cellulose-containing materials
IPC: D21B1/02
Filed: 1952-03-21
Abstract: Fibrous ligno-cellulosic material is subjected to mechanical compression and the compressed material is allowed to expand in a liquid containing chemicals required for a subsequent treatment so that the liquid is sucked into the pores of the material; the impregnated material is then subjected to a chemical treatment for facilitating the separation of the fibres in an atmosphere of steam at a temperature above <PICT:0741980/IV(a)/1> 100 DEG  C., preferably between 150 DEG  and 220 DEG  C., and for a period of at least 5 minutes, in the presence of chemicals having a neutralizing effect on organic acids formed in the treatment; the material is then subjected to mechanical defibration so as to obtain cellulose pulp.  As shown, wood chips fall from hopper 210 into a conveyer shoot 211 which is vibrated so as to cause the chips to move along to the feed opening of a compressor.  This device comprises a tapering casing 220 containing a rotatable screw 222 and merging on the discharge side of the screw into a tube 221 of gradually increasing diameter.  This tube is joined to tube 223 which is provided with a hinged flap 224. A duct 225, enclosing tube 223, opens into a long inclined conveyer casing 20 which contains a solution of the chemicals with which the chips are to be treated.  The compressed chip material on entering the duct 225 absorbs the solution and becomes thoroughly impregnated. The conveyer 22 feeds the chip material upwardly above the level 16 of the liquid to the discharge shoot 25.  The material may be impregnated with a solution of sodium hydroxide, sodium hydrosulphite or a mixture of these chemicals.  The impregnated chip material from the shoot 25 is then passed into a chamber (not shown) in which it is heated in an atmosphere of high-pressure steam for a period of at least 5 minutes, e.g. 10-20 minutes. This treatment chamber may be provided with a feed screw which has to work against a considerable counter-pressure so that part of the chemical-containing liquid absorbed is then squeezed out of the chip material.  The chemically-treated material is then subjected to mechanical defibration.  The device for compressing the chip material may be in the form of a reciprocating plunger instead of a rotary screw conveyer.
Patent GB-452749-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/34
Filed: 1935-12-06
Abstract: 452,749. Electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Enunasingel, Eindhoven, Holland. Dec. 6, 1935, No. 33886. Convention date, Feb. 11. [Class 39 (ii)] In an electric incandescent lamp having a bulb of small volume which is surrounded by a second bulb secured to it by a tube provided with two flanges, one at each end, which are sealed to the respective bulbs, the pinch 44 of the lamp is situated between the two flanges 42, 43 of the stem tube 41. An exhausting tube 45 has a lateral opening 48 into the stem tube. The inner bulb 49 may be filled with gas such as krypton or xenon, enabling a bulb of very small dimensions to be used. The space between the bulbs may be exhausted or filled with a gas of poor heat conductivity. The inner bulb may be made of clear glass, and the outer bulb 50 coated on the inside with coloured varnish. Cooling may be facilitated by providing apertures in the wall of the outer bulb. A doubly or multiply helically wound filament may be used in the lamp.