baber/WOPTO huggingface dataset:
Patent GB-927447-A (GB)
Title: Improvements in control systems
IPC: B23Q15/26
Filed: 1961-06-09
Abstract: 927,447. Control of A.C. motors. SENECA FALLS MACHINE CO. June 9, 1961 [June 16, 1960], No. 20961/61. Class 38 (3). The rotatable work-table of a machine tool is driven to predetermined positions by an electric motor 2 through a mechanical amplifier 3 associated with a pilot motor M for rotating the output shaft of the amplifier at different speeds. Closure of switch 35 energizes relay 31 to connect drive signal generator 18 to signal amplifier 15 whereby the motor M causes the table to be driven towards a stopping position at a high speed. When a cam member on the table engages actuator 33, switch 32 opens to de-energize the relay 31 and disconnect the drive signal generator 18, whilst connecting a transducer 20 to the amplifier 15 for providing low-speed operation of the table. The transducer 20 comprises primary coil 21 and opposed secondary coils 23 associated with a movable core 24 coupled with a spring-biased stylus 25 adapted to engage the surface of the cam carried on the table. As the core 24 is moved towards its null position, the control signal is reduced gradually to zero, whereupon the table stops and relay 49 actuates a signal circuit. If the table moves through its predetermined stopping position, the stylus 25 is driven beyond its null position causing the drive to reverse and return the table to the precise index station. For manual operation, switch 34 is opened to de-energize relay 31, start switch 44 is closed to energize motor 2, and the table moves towards the next station at a lowspeed. The table carries a plurality of cam members, each being adjustable and removable so that the positions of the index stations thereby defined may be adjusted. Specifications 686,650, 691,897 and 692,173 are referred to.
Patent GB-783923-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L23/36
Filed: 1955-07-20
Abstract: 783,923. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 20, 1955 [July 23, 1954], No. 21007/55. Class 37. A barrier layer semi-conductor device comprises a sealed envelope containing the semi-conductor body and the lead-in wires have a metal coating outside and adjacent the envelope which is provided after the sealing-in operation. In Fig. 1, glass tube 1 and glass cap 2 contain a transistor, and the lead-in wires 3 are covered with a copper coating 5 by electroplating after the envelope has been sealed. Alternatively, aluminium may be sprayed along part of the length of each lead wire, or copper wire or metal tape may be wound round one or more of the wires. The arrangement facilitates cooling of the semi-conductor body during operation, without aiding the transfer of heat to the body during manufacture which would occur if thick lead wires were used throughout. The invention may also be applied to a crystal diode.
Patent GB-1300691-A (GB)
Title: Co-ordinates converter
IPC: B64C13/24
Filed: 1971-04-19
Abstract: 1300691 Co-ordinates converters DORNIER AG 19 April 1971 [27 Feb 1970] 21142/71 Heading G4B A converter of Cartesian co-ordinates to polar co-ordinates comprises a pair of link transmission systems 1, 2 interconnected by means of shafts 30, 31 such that the x input at link 10 and y input at link 3 are converted to a phi output via levers 7 and 9 and the same inputs are transmitted to a double lever 19 mounted on an oscillatible lever 23 to actuate an r output via over-pressure member 25 and double lever 26. In a modification, Fig. 2 (not shown), a double co-ordinates converter is described where systems 1, 2 may relate to yaw and horizontal acceleration and ststems (1<SP>1</SP>, 2<SP>1</SP>) may relate to roll and vertical acceleration.
Patent GB-571325-A (GB)
Title: Improvements in and relating to dyeing operations
IPC: D06B19/00
Filed: 1943-12-17
Abstract: Textile and other materials such as viscose sheet, paper, wood veneer and composite sheet containing or composed of dyeable materials, which have had vat dyestuff applied by pigment padding are subjected to treatment with a reducing liquor while sandwiched between two surfaces, preferably impermeable to <PICT:0571325/IV/1> air and moisture, and the reduced dye is subsequently oxidised in the usual manner.  The reducing operation may be carried out continuously, e.g. between two endless bands or surfaces, one of which bands may pick up the reducing liquor or the liquor may be run or sprayed on to the fabric as it enters the bands. Alternatively, the reduction may be effected between the surfaces of a cylinder or cylinders and an endless band passing round them or between non-moving surfaces.  A suitable apparatus comprises a steel cylinder 2, having an internal steam space 3, and an endless rubber blanket 1.  That part of the blanket not carried by the cylinder is supported by guide rollers, certain of which act as immersion rollers in a rectangular box 4 containing the blanket washing liquor, which may be heated by live steam admitted through pipes 6 and 7.  A steam-heated drying cylinder 8 maintains the temperature of the blanket.  The cloth 11 passes through the reducing solution in the box 9 under the roller 10 and on to the blanket moving round roller C11.  Surplus liquor is removed from the cloth by the doctor 13.  The cloth then passes between the sandwiching surfaces of the blanket and the cylinder and emerges at the roller C1 whence it passes to the continuous washing, oxidising and soaping devices to complete the dyeing operation.  In examples: (1) cotton poplin is padded with an aqueous bath containing Caledon jade green, sulphonated castor oil and locust bean gum, the dye reduced with alkaline solution hydrosulphite in the apparatus described above and the dyeing finished as usual; (2) cotton tussore is padded with an aqueous bath containing Caledon brilliant blue, sulphonated castor oil and locust bean gum, the dye reduced with an alkaline sodium hydrosulphite solution containing a sulphonated fatty alcohol such as sulphonated oleyl alcohol in the apparatus described above and the dyeing finished as usual.
Patent GB-361825-A (GB)
Title: Improvements in or relating to mechanical time fuses for artillery projectiles
IPC: F42C9/02
Filed: 1931-07-24
Abstract: 361,825. Projectile fuzes. SOC. ANON. ARTURO JUNGHANS FABBRICA D'OROLOGERIA, Venice, Italy.-(Assignees of Junghans Akt.-Ges., Geb. ; 134, Geishaldenstrasse, Schramberg, Germany.) July 24, 1931, No. 21202. Convention date, Aug. 15, 1930. [Class 9 (i).] In clockwork fuzes driven by centrifugal sectors a, a pivoted at b, b, intermediate step-up gears c, c are interposed between the sectors and the central spindle e of the time disc, so that the travel of the centrifugal sectors is reduced and therefore also the variations of centrifugal force thereon, and this results in a more even drive.
Patent GB-965495-A (GB)
Title: Improvements in or relating to bracket suspension devices
IPC: A47B55/02
Filed: 1962-06-01
Abstract: 965,495. Brackets. S. G. N. R. NILSSON. June 1, 1962 [Oct. 7, 1961; Feb. 6, 1962], No. 21220/62. Heading A4B. A suspension device comprises a wire frame 10 which may be secured to a door and transverse groups of equi-distant wires 11 on which are clipped resilient elements 13 e.g. of nylon to carry articles such as wire baskets 12. The elements 13 have spaced notches on one longitudinal edge so as to bridge two adjacent wires 11, and a hook-like portion at the upper short edge on which is hung the basket 12. Screws or nails pass through the elements 13 into the door at their chosen positions. The wires used in the device may be of plastic covered steel.
Patent GB-859995-A (GB)
Title: Improvements in and relating to train cases, slipper cases, suit cases and the like
IPC: A45C5/02
Filed: 1958-07-03
Abstract: 859,995. Suitcases. SEGAL, M. July 1, 1959 [July 3, 1958], No. 21291/58. Classes 18 and 133. A suit or train case comprises a P.V.C. base panel 10 reinforced by a carboard panel 14, a P.V.C. wall panel 11 reinforced by a cardboard liner 154 welded by radio frequency to the base periphery which is flush with the lower edge thereof, and a lid hinged to the wall 11 formed of a P.V.C. panel 23 and flange 24 both of which have cardboard reinforcement 26, 28. The liner 15 fits against the wall 11 so that its lower edge has between the wall 11 and its rim 13 formed during welding, while the upper edge of the wall 11 is turned over the liner 15 as at 16, adhesive being used to secure the wall and liner together at both areas. A wire reinforcement 17 is secured by adhesive tape 18 and a second cardboard liner 19 fits within the liner 15 to project at 20 so that a surrounding ridge 21 is formed, the projecting part being covered with P.V.C. 22.
Patent GB-1151592-A (GB)
Title: Improvements in or relating to Fluid Filters
Inventor: HESP JOHN ROBERT
IPC: B01D29/11
Filed: 1966-05-13
Abstract: 1,151,592. Filter cartridge manufacture. APPLIED POLYMERS Ltd. 12 May, 1967 [13 May, 1966], No. 21400/66. Headings B1D and B1T (Also in Division B5] A method for the production of a hollow outside-in or inside-out flow gas or liquid filter cartridge having cured polyurethane end caps cast directly comprises metering a polyol component, a cold curing catalyst component, and a diisocyanate component for the polyurethane into a mould conforming to the shape of one end member, inserting one end of an uncapped filter member unit into the mould and curing said polyurethane while said member is in situ to provide on impermeable end cap, and repeating the operation with the other end of the filter element. The filter cartridge may be of pleated paper, felt, fibre glass or wire gauze and may be cylindrical, square or oval. It may be used for filtering oil, water or air.
Patent GB-1461953-A (GB)
Title: Controlling automotives exhaust gases
IPC: F02P5/10
Filed: 1974-05-15
Abstract: 1461953 Timing ignition EXXON RESEARCH & ENG CO 15 May 1974 [22 May 1973] 21427/74 Heading F1B In an I.C. engine having an exhaust gas reactor device, e.g. of thermal or catalytic type, the ignition timing is retarded at idling and low throttle valve openings to ensure rapid heating up of the device, greater retardation being provided at idling by connecting a vacuum device 110 to a position downstream of the throttle valve 104, and at small valve openings the vacuum device 110 is connected to a position 121 upstream of the valve. The vacuum device 110 acts on a distributer 109 which may also be controlled by a centrifugal ignition advance system. A solenoid valve A controls communication between the device 110 at 119, and the lines 111, 121, the valve being controlled by a fixed micro-switch (126), Fig. 4 (not shown), actuated by the vehicle accelerator pedal. Again, Figs. 5 and 6 (not shown), the valve may be actuated purely mechanically by being turned by throttle valve 104.
Patent GB-1505588-A (GB)
Title: Blood filtration unit
IPC: A61M1/22
Filed: 1975-05-20
Abstract: 1505588 Blood filters JOHNSON & JOHNSON and PUROLATOR INC 20 May 1975 [28 May 1974] 21504/75 Heading BID A blood filter comprises annular filter element 25 sealed to its top cap 26 and bottom member 27, the cross-section of element 25 and cap 26 being substantially the same shape and multi-pointed and the member 27 being secured to housing 14. The points of cap 26 engage the inside surface of housing 14. Drip chamber 13 may have air valve 17 in its side wall, the valve 17 including a resilient member 18 and annular air filter 22 (e.g. needle punched polyester). Filter element 25 may comprise one or more filter layers supported on a central perforated tube. Supporting layers may be positioned between adjacent filter layers. When blood is passing from a blood bag via inlet 11 into drip chamber 13 valve 17 may be opened to vent air. To drain the chamber 13 the valve 17 is opened to allow air to enter chamber 13. Element 25 may comprise woven, non woven, foamed or needle-punched material, polyester or nylon. The housing, cap and bottom member may be made of polycarbonate or butadiene-styrene copolymer; preferably the housing is transparent.
Patent GB-203150-A (GB)
Title: Improvements in and relating to sliding and folding partitions and windows
IPC: E06B3/48
Filed: 1922-08-08
Abstract: 203,150. North of England School Furnishing Co., Ltd., and Pease, J. H. Aug. 8, 1922. Rectilinear-motion bearings.-The lower bearings of folding-sliding partitions consist of runners B, of a diameter approximately equal to the thickness of two leaves, carried on spindles b in housings pivoted on pins c<1> in socketed holders secured to the lower corners of the leaves. The housings are provided with guides b<1>, which clean the track and retain the roller thereon. The top guides may consist of a single roller on a vertical stud, or a pair of rollers E in a pivoted carrier. A spring-pressed stud may be mounted in a holder in the top track, and adapted to engage the rollers, to prevent a too rapid unfolding of the leaves.
Patent GB-188092-A (GB)
Title: Improvements relating to horizontal boilers or heating apparatus for tar, bitumen, or similar substances
IPC: E01C19/08
Filed: 1921-08-13
Abstract: 188,092. Elford, E. J. Aug. 13, 1921. Stationary batch-mixers with reciprocating or oscillating stirrers.-Relates to agitators for horizontal tar-boilers and the like, and consists in a readily detachable device not involving the passage of a shaft through the walls of the boiler. The agitator blades f are connected by radial arms g to a shaft e which is supported horizontally within the boiler by stirrups a, Fig. 4. suspended by flanges c from the end walls d of the boiler. The shaft e has toothed quadrants h at its end, with which are geared quadrants k on a. second shaft which is mounted in bearings above the boiler, for example on the stirrups a. Handles for working are provided on the shaft j.
Patent GB-320906-A (GB)
Title: Improvements in detachable wheel mechanism
IPC: B60B3/18
Filed: 1928-07-25
Abstract: 320,906. Langley, T. W. July 25, 1928. Detachable wheels. - In a detachable wheel device, the fixed and detachable hubs have cooperating threads, one of the threaded elements being axially adjustable in its hub. As shown, a sleeve 6 having interrupted threads 8 is keyed to the fixed hub 1 and, within the limits of a slot 50, is adjustable thereon by means of a capnut 13, being held up to the cap by a spring- washer 17. The wheel hub 24 has interrupted threads 25 and is capable of limited rotary movement within the wheel-centre. The latter is fitted with sockets 21 to receive studs 9 projecting from a driving-plate 2 fast with the hub 1, and with a spring-pressed locking pin 35 adapted to engage a hole 33 in the hub-flange 26. In assemblage., the wheel is slipped over the cap 13 whilst this is in its screwed-back position. and the threads 8, 25 are partially engaged. The cap is then turned to force the sleeve 6 along the hub 1 to jam the threads, after which the wheelhub is forcibly screwed home, whereupon the locking-pin 35 may .enter the hole 33. Figs. 6 and 8 show tools (not claimed) for effecting the final turning of the wheel-hub. That shown in Fig. 6 consists of a lever 37 with a sector-shaped head 88, curved to fit over the hub-flange 26, and a lug 39 having a pin 40 to engage the hole 33. In the unlocking movement, the pin 40 first serves to disengage the pin 35 from the hole 33. The tool shown in Fig. 8 comprises a link pivoted at 45 to the lever 46 and provided with Ó pin 40a corresponding to the pin 40 of the tool shown in Fig. 6. The lever 46 is bored at 47 to engage. a stud projecting from the hub-nange 26, and has a stop 49 adapted to engage the edge of the flange 26 when the hub has been turned to the locking-position.
Patent GB-776935-A (GB)
Title: Improvements relating to adjustable chairs
IPC: A47C1/026
Filed: 1954-07-24
Abstract: 776,935. Seat back adjustments. ENGLISH, D. E. N. Oct. 13, 1955 [July 24, 1954], No. 21662/54. Class 52 (2). An angularly adjustable seat back 6, pivoted at 7, is supported by a hinged strut 9 the lower end of which is connected by a cable 11, passing over a roller 12 and pulley 14, to a tension spring 15. One or more additional cables 16 secured along the strut 9 are looped around the roller 12 which has radial recesses 21a which can be engaged by a retractable detent 22 to maintain the parts in adjusted position.
Patent GB-355465-A (GB)
Title: Improvements relating to thread-guides for doubling or twisting machines
IPC: B65H57/26
Filed: 1930-07-17
Abstract: 355,465. Thread guides for yarnwinding machines. WEGMANN ET CIE, SOC. ANON., Baden, Switzerland. July 17, 1930, No. 21701. Convention date, Oct. 11, 1929. [Class 120 (ii).] The thread guide 1 of a doubling or twisting machine having tiers or superimposed rows of bobbins is provided with a spring-loaded hinged guide bow 2, 3 adapted to encompass the thread guide and to press it lightly on to the yarn package 10. The bow is pivoted on the bar 4 which carries the thread guide holder 5, and has light springs 7, 8 which keep it in normal working position. The guide bow enables the thread to slip automatically into the guide 1 during operation. A spring catch 9 serves to retain the guide bow and thread guide in a horizontal position during doffing and piecing of broken ends.
Patent GB-755067-A (GB)
Title: Improvements in or relating to quick-acting connections between the presser foot andthe presser foot bar of a sewing machine
IPC: D05B29/12
Filed: 1954-07-26
Abstract: 755,067. Sewing-machines. GEGAUF AKT.-GES. BERNINA - NAHMASCHINENFABRIL, F. July 26, 1954 [July 30, 1953], No. 21785/54. Class 112. In a quick-acting releasable connection between the presser foot and the presser bar of a sewing-machine, a locking element is adapted releasably to secure a conical recess or projection of the presser foot to a mating conical projection or recess of the presser bar. As shown, the presser bar 5 has a conical projection 7 which enters a conical recess 13 in the presser foot 10, a pin 14 projecting from the portion 7 entering a notch 15 in the presser foot for aligning the latter with the presser bar. A ring 8, adjustably clamped to the presser bar by means of a screw 9, carries a screw 17 on which is pivoted a slotted lever 18. The latter, which constitutes the locking element, is adapted, when moved in one direction, to coact with a rigid cam 16 provided on the presser foot, to draw the presser bar and presser foot together. The lever is freed from the cam when moved in the opposite direction. In a modification the locking element is in the form of a slotted sleeve which coacts with a pin in the manner of a bayonet coupling.
Patent GB-627847-A (GB)
Title: Improvements in or relating to apparatus for adjusting the pitch of aircraft propellers
IPC: B64C11/30
Filed: 1946-07-22
Abstract: 627,847. Variable-pitch propellers. BREGUET, L. July 22, 1946, No. 21846. Convention date, Dec. 8, 1943. [Classes 4 and 114] In a propeller pitch adjusting apparatus comprising a sleeve 14 loose on and coaxial with the propeller shaft 18, normally rotated at the same speed as said shaft, and connected by gearing to the means 4 for varying the pitch of the propeller, a pinion 11 rigidly secured on the propeller shaft, the sleeve 14 and pinion 11 meshing with twin planet gears 8, 9 mounted on a common free carrier 10 and meshing with separate sun-wheels 5 and 7 respectively, the sun-wheel 5 being stationary relative to the aircraft, the sun-wheel 7 is rotatable through gearing 4, 6, being driven in either direction of rotation by an auxiliary source of power 2 through a reducing geared winch 3 including a change-speed gear and means for controlling said change-speed gear, means being provided for controlling the rotation of the winch and for locking the rotatable sun-wheel 7 in any desired position. The sleeve 14 has teeth 13 meshing with a pinion 17 which drives a worm 21 controlling the pitch of the propeller blade 22. When the sun-wheel 7 is stationary the pinion 17 and worm 21 rotate with the propeller so that the pitch of the blade 22 remains constant. When the sun-wheel 7 is driven into rotation by the winch 3 there is produced an angular shifting between the planet pinions 8 and 9, and the sleeve 14 assumes a differential rotation with respect to the propeller shaft, whereby it drives the pinion 17, the worm 21, and the blade 22 the pitch of which is modified. In the case of coaxial associated propellers rotating in opposite directions, the sun-wheel 7 is provided with teeth 15 which mesh with a pinion 16 on a shaft 24 carried by the propeller hub 19. The shaft 24 carries a pinion 25 for driving the pitch changing gear of the propeller blades 34. The stationary sun-wheel 5 may be rotated by hand to differ the pitch angles between the two propellers. The winch 3 drives a cam-shaft acting by current breakers 105, 106, 107, 108 109 on the electrical circuit controlling the motor 2 driving the winch. A switch 97 with contact pieces 98, 100, 101, 102, 103 has a supplementary contact piece 99 connected with a regulator 110 for automatic operation between the highest pitch contact piece G.P.98 and the lowest, P.P.100. The arrangement may be applied to autogyro and helicopter rotors.
Patent GB-498812-A (GB)
Title: Manufacture of derivatives of the dihydro-oestrine series
IPC: C07J75/00
Filed: 1938-07-23
Abstract: New esters of the dihydro-oestrine series having free phenolic OH groups are prepared by reacting a compound of the dihydro-oestrine series with phosgene in the presence of an indifferent organic solvent.  The product may be caused to react with an alcohol, amine or amino-alcohol to produce derivatives. Examples of suitable dihydro-oestrine compounds are oestradiol, oestriol, and dihydro-equilenine.  Examples of the indifferent solvents are dioxane, benzene, toluene, chloroform and ethylene chloride.  In the example, an ice-cold solution of 0,2 parts by weight of oestradiol in 5 parts of dioxane is treated with 3,75 parts of phosgene and the whole allowed to stand for some hours at room temperature.  The solvent is removed by vacuum distillation giving oestradiol-17-monochlorocarbonate.  When this compound is heated for a short time with methanol and the mixture cooled and diluted with a little water and filtered, oestradiol-17-monomethylcarbonate, of m.p. 216,5-218 DEG  C. is produced.
Patent GB-488761-A (GB)
Title: Improvements in or relating to the xanthation of cellulose
IPC: D01F2/08
Filed: 1937-08-10
Abstract: In preparing viscose syrup, a suspension of cellulose in caustic soda solution is treated with carbon bisulphide in the presence of an organic liquid miscible with both the carbon bisulphide and the caustic soda solution.  The cellulose may be pretreated with caustic soda, and the organic liquid may be recovered by distillation.  The organic liquid may contain an aldehyde, ketone or hydroxyl group, and the use of acetone is particularly described.  Specification 475,925 is referred to.
Patent GB-1042135-A (GB)
Title: Reinforced thermoplastic material
Inventor: MELDRUM JOHN IRVING
IPC: D04H3/045
Filed: 1962-06-07
Abstract: 1,042,135. Web coating apparatus. COURTAULDS Ltd. June 6, 1963 [June 7, 1962], No. 22031/62. Heading D1L. [Also in Divisions B2 and B5] Apparatus for producing reinforced plastic sheeting comprises a support for a sheet of plas- . tic, a pair of nip rollers capable of passing the sheet between them, means for laying a web of textile yarns (as defined), upon the sheet, an extruder outlet for feeding continuously upon the sheet and the superimposed web a layer of thermoplastic material in its plastic state (as defined), means for consolidating the sheet, web and layer by passage together between the nip rollers and means for cooling the consolidated composite sheet. A layer of equal width to sheet 10, of thermoplastic material in plastic state is extruded from elongated extrusion nozzle 14 on top of the lattice and sheet 10 as they enter the nip between rollers 11, 12, and is adhered to the yarns and to the sheet 10 through the interstices between the yarns, the yarns being embedded in the thermoplastic layer at its interface with the sheet.