baber/WOPTO huggingface dataset:
Patent GB-1498802-A (GB)
Title: Vehicle suspension systems and valves therefor
IPC: B60G17/056
Filed: 1974-02-13
Abstract: 1498802 Controlling vehicle suspension height CAM GEARS Ltd 17 Jan 1975 [13 Feb 1974] 06481/74 Heading B7D  In a vehicle suspension levelling valve, Fig. 2, comprising a valve spool 10 slidable in a housing 11 for controlling fluid flow to and from a piston and cylinder device connected in series with a suspension spring, and a flexible lever 17 for connection to an unsprung part to actuate the valve, there are provided in the housing 11 at opposite ends of the spool 10 fluid damping chambers 25. The chambers 25 are interconnected by a passage 26 including a frusto-conical cavity 27 in which a conical screw-threaded plug 28 forms an adjustable flow restriction by means of which the damping action can be regulated. The lever 17 is secured in a bush 32 which is pivotally mounted in an extension 11a of the housing 11 by means of a split seating secured by a screwed cover 35. The end of the lever 17 extends into a bush 29 rotatably mounted in a transverse bore 30 in the spool 10. In another embodiment, Figs. 5 and 6, the valve has a rotary spool 10a and the flexible lever 17 extends through a diametrical hole in the spool. The lever also extends through a bush 32 rotatably mounted in a damping piston 42 disposed in a cylindrical bore 43 which is closed by plugs 44, 45 to form damping chambers 46, 47. A clearance between the piston 42 and the bore 43 allows interchange of fluid between the chambers 46, 47 and a reservoir chamber 49.
Patent GB-1393982-A (GB)
Title: Pressure sensitive adhesive products
IPC: C09J7/10
Filed: 1972-02-11
Abstract: 1393982 Laminating with adhesives ROHM & HAAS CO 11 Feb 1972 [19 Feb 1971] 6566/72 Heading B5N [Also in Divisions B2 and C3] An adhesive product, suitable for bonding various substrates, comprises a backing-free layer or film of pressure sensitive adhesive, optionally on a release coated surface, the adhesive having the resilience of a soft rubber, a thickness of 8-125 mils., a Tg of below 0 C., a tensile strength of from 15-60 p.s.i., and a per cent elongation at break of from 500- 3000%. The adhesive is preferably an addition polymer derived from acrylic monomers and the physical properties defined above are suitably obtained by forming a cross-linked polymer and/or incorporating a finely divided inorganic bodying agent in the polymer. Materials which can be bonded with the adhesive include wood, laminated decorative sheets, polymethyl methacrylate, polyvinyl chloride, polyvinylidene chloride, polyethylene terephthalate, nylon, phenolformaldehyde resins, urea-formaldehyde resins, melamine-formaldehyde resins, linoleum, asphalt tile, vinyl tile, ceramic tile, glass, concrete, asbestos cement, plaster, metals and coated surfaces such as painted automobile bodies, woodwork, walls, ceilings and floors. Useful bodying agents for use in the invention include finely divided inorganic materials such as carbon black, zinc oxide, calcium carbonate, calcium silicate, hydrated silica, hydrated alumina, clays and magnesium carbonate. In Examples the adhesive comprises copolymers of various monomers selected from n- or iso-butylacrylate, methacrylic acid, methyl methacrylate, acrylic acid, 2-ethylhexyl acrylate, triethylene glycol dimethacrylate, 2-dimethylaminoethyl methacrylate, vinyl acetate, 2-hydroxyethyl methacrylate, maleic acid monoester of 2-tbutylaminoethanol, ethyl acrylate, glycidyl methacrylate, octyl acrylate, N-methylolacrylamide; and a mixture of butadiene/acrylonitrile copolymer with an epoxy resin derived from 2,2-bis-(4-hydroxyphenyl)propane and epichlorohydrin, and a mixture of polyvinyl ether, 2 - ethylhexylacrylate / methacrylic acid/ glycidyl methacrylate / methyl acrylate copolymer, poly(2 - ethylhexyl acrylate) and phenol-formaldehyde resin.
Patent GB-893843-A (GB)
Title: Electrographic recording head
IPC: B41J2/395
Filed: 1959-02-25
Abstract: 893,843. Selective electrostatic printing. B UR ROUGHS CORPORATION. Feb. 25, 1959 [May 9, 1958], No. 6572/59. Classes 100(2) and 100(4) [Also in Group XL(a)] An electrographic recording head has one or more print electrodes 16 terminating substantially flush with the print face 12 of the head, and one or more initiating electrodes 14 also terminating flush with the print face 12 in closely spaced relation to the electrodes 16, between the electrodes 14, 16 there are two thin layers of insulating material, the one 32 adjacent the electrodes 14 being of material, e.g. polyethylene terephthalate which is erodable by electrical arcs and the other 30 of material, e.g. glass or mica which is not eroded by the arcs. Specifications 893,844 and 893,845 are referred to.
Patent GB-399714-A (GB)
Title: Automatic rifle
IPC: F41A3/40
Filed: 1933-03-03
Abstract: 399,714. Automatic rifles. PELO, C., 7, Kalevagatan, Helsingfors. March 3, 1933, No. 6573. [Class 119.] Relates to automatic rifles of the short barrel-recoil type, in which the breech-block and barrel extension are interlocked during the recoil and delayed return movements of the barrel, by a pair of catches pivotally mounted on the breech-block. According to the invention, the catches 7, 8, Fig. 2, are actuated by guide-pins 9 engaging in grooves 13, 14 in the fixed breech frame 6, or in a part rigidly connected thereto, the grooves being of sufficient length to guide the pins throughout their movement. The guide-grooves are parallel for the greater part of their length and at the forward end diverge a sufficient distance to enable the catches to rest against the sides of abutments 11, 12 in the barrel extension 2. On recoil, the catches are swung inwardly by the grooves to release the breech-block 3, and their rear ends engage with the bevelled corners of an abutment 23 on the firing pin 22 and draw the point thereof into the breech-block. The barrel extension is positively held, during the independent recoil and return movements of the unlocked breech-block, by the head 16, Fig. 4, of a leaf spring 17 mounted in the breech frame. The head engages with a recess 18 in the barrel extension and is released therefrom by the engagement of the returning breech-block with a lateral projection formed thereon.
Patent GB-810112-A (GB)
Title: Improvements in or relating to armature winding machines
Inventor: GILL RALPH HARROWBY
IPC: H02K15/09
Filed: 1954-03-08
Abstract: 810,112. Armature winding machines. MIDLAND DYNAMO CO. Ltd. June 7, 1955 [March 8, 1954], No. 6678/54. Class 35. An armature winding machine in which a wire feeding arm rotates about an axis normal to the armature axis has longitudinal wire guides to direct the wire along the slots and end guides to deflect the wire towards the bottoms of the slots and across the armature ends. As shown, the armature A is supported between vertical pivots on spindle 55 in frame 47 carried on a sliding base 46 movable by handle 81 towards and away from the guide surfaces 56, pivotally mounted on rods 60 and from the guides 64, 65 carried on arms 68 carried by sleeve 33 mounted by bearings 32 on the reduced end of shaft 18 which carries the rotating arm for feeding wire from supply 38 via pulleys 39, 40, 43, 25 and 26. The base 46 encloses ratchets to enable armature carrying spindle 55 to be rotated through a desired number of slot pitches. If the armature has slots of different depths, the guides are replaced by others of different shape. Fig. 10, not shown, is a modification. suitable for smaller armatures. In another form, Fig. 11, the armature A3 is supported from a sleeve 134 and has wire guides 135, 143. Specification 606,721 is referred to.
Patent GB-664769-A (GB)
Title: Improvements in cathode-ray tubes comprising a luminescent screen provided on a glass support
IPC: H01J29/24
Filed: 1949-03-11
Abstract: 664,769. Glass compositions. PHILIPS ELECTRICAL, Ltd. March 11, 1949 [March 15, 1948], No. 6741/49. Class 56 [Also in Group XL (a)] The support of the luminescent screen for a cathode-ray tube is made of cerium glass which does not contain more than one per cent by weight of the oxides of lead, antimony and arsenic which yields little discoloration by electron bombardment. The proportion of sodium oxide in the hard or soft glass preferably should not exceed 15 per cent by weight, and the content of the specified oxides should be correspondingly reduced when the content of sodium oxide, and consequent electrolysis, is increased. A glass which gives no discoloration contains the following proportions : SiO 2 -66, Na 2 O-5, K 2 O-10, B 2 O 3 -2, BaO-15, CeO 2 -2 per cent. Alternatively K,O may be eliminated and Na 2 O increased to 15 per cent to give discoloration which is just visible. The following glass gives slight discoloration-SiO 2 -65, Na 2 O-15, B 2 O 3 , -2, BaO-15, CeO 2 -2, PbO-1 per cent.
Patent GB-608827-A (GB)
Title: Apparatus for beading or rounding the end edges of tubes of paper or like material
IPC: B31B17/00
Filed: 1946-03-05
Abstract: 608,827. Beading paper tubes. McLAUGHLIN, J. R. March 5, 1946, No. 6795. [Class 99 (ii)] In a machine for beading the ends of paper tubes, particularly those used in tampon applicators, the tubes 10 are fed down a shoot 16 to intermittently-moving carrier members which transfer the tubes in succession to an operating station where the ends are beaded by a pair of forming-dies 75. The tubes 10 are subsequently telescoped into larger tubes to form a tampon of the type described in U.S.A. Specification 2,024,218. The carriers consist of two pairs of notched wheels 39, 40 and 43, 44 which are located on parallel shafts 35, 36 respectively, connected by gears 37, 38. The shaft 35 is extended through a bearing block 34 and carries a Geneva pin-wheel 46 comprising radial barrel-shaped rotatable rollers coacting with a wheel 62 of modified worm form mounted on a vertical shaft driven from a shaft 60. The mechanism imparts intermittent movements to the notched wheels to transfer the tubes from the shoot to the operating station and thence to the discharge shoot 28. The beading-dies 75, Fig. 7, are mounted on arms 78, Fig. 1, adjustably mounted on studs connected to the table 18. The arms 78 are connected through links 89, 95 to a slide bar 70 which is reciprocated in synchronism with the tube feeding movements by a crank disc 68 driven from the Geneva shaft 52. Thus, while each tube is held at the operating station, the dies are brought up to bead the ends thereof. The shaft 36 is mounted on spring pressure bearings which can yield if one of the tubes is not correctly positioned.
Patent GB-512714-A (GB)
Title: Method of producing thermoplastic die castings
IPC: B29C45/18
Filed: 1938-03-04
Abstract: 512,714. Fastenings. MORIN, L. H., and MARINSKY, D. March 4, 1938, No. 6861. Convention date, March 18, 1937. [Class 44] [Also in Group V] In forming articles such as sliding-clasp fasteners by injection-moulding wherein thermoplastic material such as cellulose acetate is fed to a cylinder 13 where it is heated as by an electric coil 15 and is forced into a die cavity 21 by a plunger 10, a succession of charges is fed into the cylinder intermediate pressure discharges of heated material from the cylinder. The material is fed by a slide 7 with an aperture 6 adapted to register with a discharge tube 9. The slide is connected to the plunger at 11. The material may be fed in the form of a rod or wire 26 by rollers 27 and portions severed from it by a slide. The material is fed in successive small portions prior to each moulding stroke, the piston having a number of feeding strokes to each pressing stroke. The cylinder is held against the mould orifice 22 by a spring. The die cavity is formed between die parts between which a stringer tape 24 is fed. One or two core-pins 25 may be provided. The plunger may be cooled when in its retracted position by fluid circulated through passages 14. The dies may also be cooled and the core-pins may be hollow and water-cooled. The cylinder 13 is moved into and out of register with the mould orifice but it is maintained against the surface of the die to prevent ejection of material. Larger castings, such as a slider 43, Fig. 2, may be formed. In this construction charges x, y have been fed into a cylinder 41 by strokes of a plunger 40, but material is not forced into the die cavity until a third charge z is fed into the cylinder. Specifications 512,750 and 512,751, [both in Group V], are referred to. The Specification as open to inspection under Sect. 91 includes also the subject-matter of Specifications 512,715, 512,750 and 512,751. This subject-matter does not appear in the Specification as accepted.
Patent GB-987108-A (GB)
Title: A circuit arrangement for control purposes
Inventor: EMBREY DEREK MORRIS
IPC: B66B1/44
Filed: 1961-02-24
Abstract: 987,108. Control of motors. ELECTRIC CONSTRUCTION CO. Ltd. Feb. 26, 1962 [Feb. 24, 1961], No. 6882/61. Heading H2J. As a lift begins to accelerate on moving away from a floor, a switch 11 is actuated to charge capacitor 10. Actuation of a stop-button for a selected floor energizes a relay which is associated with a switch located on a model which copies the operation of the main lift, the said switch being positioned adjacent to a point corresponding to the selected floor and being closed when a movable member of the model reaches the switch. The movement of such member is synchronized with that of the lift-car. Closure of the switch causes change-over of switch 11 so that capacitor 10 discharges at a linear rate through pentodes 15. A signal derived from the capacitor is supplied to the grid of valve 25 which energizes relay 30 for continued acceleration of the lift. A second valve 26, whose grid is supplied from a tachometer generator driven by the lift, remains non-conducting until the increasing speed-responsive signal becomes equal to the decreasing signal from the capacitor 10. When the two signals are balanced, the current through common cathode resistor 28 switches from valve 25 to valve 26 and thereby de-energizes relay 30. This serves to initiate lift retardation to bring the lift to its levelling speed adjacent to the selected floor. Potentiometer 12 is adjusted to provide a voltage representing the normal full speed of the lift, whilst potentiometer 18 is adjusted so that the rate of discharge through pentodes 15 is comparable with the retardation rate of the lift. Potentiometer 37 permits adjustment of the magnitude of the speed-responsive signal. Two pentodes are provided for the sake of safety. For the same reason, valves 45, 46 are connected in parallel with the pair 25, 26.
Patent GB-272302-A (GB)
Title: Improvements in or relating to tone-arms for gramophones and like machines
IPC: G11B3/00
Filed: 1926-03-12
Abstract: 272,302. Clifton, W. E., and Cliftophone Ltd. March 12, 1926. Tone-arms; tone-arm joints.-A tone-arm is constructed with a horizontal part 12 connected by an angle bend 13 with a swivelling member 10 comprising a sleeve arranged to turn in a sleeve 9 provided at the top of an upright part 3 which fits and turns within an aperture 6 in a base plate 5 and is held thereto by half rings 8 or fingers secured to the base plate and engaging a groove 7 or shoulder in the upright part. The bend 13 is preferably made from two circular stampings 14, 15, Fig. 3, of semicircular cross section which are brazed together along their circular edges and to a central cylindrical piece 16 and then divided by cross-cuts. A bend so produced may also be employed to connect the sound-box to the tone arm.
Patent GB-1200291-A (GB)
Title: Propellant composition and polymer for use therein
IPC: C08L63/00
Filed: 1958-03-04
Abstract: 1,200,291. Propellants. THIOKOL CHEMICAL CORP. 4 March, 1958 [8 March, 1957; 6 Jan., 1958], No. 6989/58. Heading ClD. [Also in Division C3] In a rocket propulsion fuel, an oxidant is dispersed in a solid combustible composition. The latter comprises an epoxide-cured acrylobutadiene copolymer with inorganic non-metallic oxidizing agents, such as ammonium perchlorate and ammonium nitrate. In the preparation, the copolymer is formed as a liquid, the oxidant is added together with the liquid polyepoxide curing agent and the mixture introduced into the rocket casing. The mixture is then cured and solidified inside the casing by heating. In one example, the polymerization reaction vessel is charged with butadiene, methyl acrylate, water, dioctyl sodium sulphosuccinate emulsifying agent, dodecyl mercaptan modifier and potassium persulphate initiator. The vessel is sealed and heated after which the emulsion is run into a solution of potassium aluminium sulphate and the acrylobutadiene copolymer is separated therefrom at the surface. The copolymer is next added to a solution of sodium hydroxide and converted to butadiene-acrylic acid copolymer. After washing, the product is dried under vacuum and added to a liquid polyepoxide curing agent with ammonium perchlorate and then introduced into the rocket motor. In further examples the polymerization reaction is effected between butadiene and acrylic acid or methacrylic acid or between isoprene and acrylic acid.
Patent GB-331565-A (GB)
Title: Improvements in or relating to heat exchanging means particularly applicable to refrigerators
IPC: F25B31/00
Filed: 1929-03-04
Abstract: 331,565. General Electric Co., Ltd., and Brittain, F. H. March 4, 1929. Refrigerating, compression machines for; cooling gases, hollow fans for.-The casings of a rotary refrigerating machine are provided with fins 2. Fig. 1, having rows of holes 3 arranged 'n the direction of the flow of heat in the. fins. In a modification, the fins are formed by rods 6, Fig. 2, and wires 8. Specifications 13232/13, [Class 64 (iii), Surface apparatus &c.], 15773/14, 271,437; and 304,981, [Class 64 (iii), Surface apparatus &c.], are referred to.
Patent GB-924340-A (GB)
Title: Improvements in or relating to induction heating equipment
Inventor: WILKINSON WILLIAM DINSDALE
IPC: H05B6/06
Filed: 1961-02-27
Abstract: 924,340. Protective arrangements. RADYNE Ltd. Dec. 15, 1961 [Feb. 27, 1961], No. 7104/61. Class 38 (5). In an induction-heating equipment including an alternating current generator 8 having a valve oscillator, a work inductor 7 and a tuning capacitor 3 for the work inductor, protection of the tuning capacitor is effected by a capacitor arranged to receive a current proportional to, but smaller than, the current taken by the capacitor 3, and an overload relay 6 which responds when the current through the capacitor 1 exceeds a predetermined value. As shown, the relay 6 is connected in series with a rectifier 4 and a variable resistor 5 across a resistor 2 which is in series with the capacitor 1.
Patent GB-943175-A (GB)
Title: Formaldehyde polymers
IPC: C08G2/00
Filed: 1962-02-23
Abstract: <PICT:0943175/C3/1> Formaldehyde polymers having the infrared spectrum of sample A in the accompanying drawing and a weight loss at 160 DEG C. after 60 minutes lower than 1.5% are prepared by polymerizing anhydrous formaldehyde in an anhydrous solvent in the presence of an amino acid. The reaction is preferably carried out at between -15 and +50 DEG C. Specified amino acids include glycine, betaine, asparagine, betaine hydroxide, alanine and para-amino hippuric acid. Specified solvents are toluene and n-heptane. The polymer may be acetylated.
Patent GB-890854-A (GB)
Title: Improvements in or relating to electrical condition-detecting apparatus, such as for use in flame-detection
IPC: F23N5/24
Filed: 1958-03-06
Abstract: 890,854. Controlling burners. MINNEAPOLIS -HONEYWELL REGULATOR CO. March 6, 1958 [March 14, 1957], No. 7256/58. Class 75(1) [Also in Group XL(b)] In a device for sensing the presence of smoke or flame, the application of an energizing voltage to a non self-quenching radiation detector of the Geiger Mueller type is delayed, on switching on the device, until its associated quenching circuit has attained its operable condition. A Geiger counter 10 and quench thyratron 44 have a common load resistor 82. When the counter is subjected to radiation each counterpulse causes the thyratron to conduct whereby the voltage applied to the Geiger tube is reduced and its discharge is quenched. The energizing voltage for the counter is delayed by connecting the common HT supply to the thyratron and counter via a contact of a thermal delay relay 40 which is supplied from the same source as the thyratron heater voltage. The output of the quench circuit is amplified by a valve 22 and is applied via a diode 23 to an integrator circuit 63, 64. When the pulse rate exceeds a set value, the voltage across the integrator circuit exceeds the fixed bias on a discharge valve 24 which conducts and operates an alarm 75. The device can be used for controlling a fuel burner by sensing the presence or absence of a flame at the burner.
Patent GB-1384973-A (GB)
Title: Drawing presses
IPC: B21D37/04
Filed: 1973-02-14
Abstract: 1384973 Cupping L SCHULER GmbH 14 Feb 1973 [18 Feb 1972] 7263/73 Heading B3Q A clamping plate (not shown) in a press for drawing sheet metal is supported, through pins 3, a pressure box 2 and a piston-rod 6, 7, on a pressure cushion (not shown), the piston-rod 6, 7 comprising at least two parts which are telescopically adjustable for shortening the rod to lower the pins 3 beneath a die-holder 5 so as to facilitate its removal from the table 1. As shown, the length of the rod 6, 7 is reduced by a distance b by withdrawing liquid from a space 8. The pins 3 are guided in disc 4 and the air box 2 in a cylinder 10.
Patent GB-657866-A (GB)
Title: Improvements in or relating to electrical induction apparatus
IPC: H01F27/25
Filed: 1949-03-17
Abstract: 657,866. Transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 17, 1949, No. 7332. Convention date, April 13, 1948. [Class 38 (ii)] [Also in Group XXII] A core and coil assembly, e.g. for a transformer, comprises a magnetic core including a plurality of core loops 2, 3, each loop formed from a ribbon of magnetic sheet steel wound flatuise layer on layer and having a rectangular window therein, the several layers being banded together to form a solid structure, each loop having butt joints 6, 7 on opposite sides so providing separable portions 4, 5, a winding structure 1 extending through the window in the core loop, insulating material between the inner surface of the core loop and the winding structure including a sheet or sheets 25 of thermoplastic resin having a melting or softening point below 120‹ C. and positioned against the inner surface of the core loop at least in the neighbourhood of the butt points, a thermoplastic bonding material disposed between the faces of the butt joints, a resilient metal band 8 being placed about each core loop under tension for maintaining constant pressure on the joint.
Patent GB-272600-A (GB)
Title: Automatically operating valve apparatus for controlling the flow of liquids
IPC: G05D16/10
Filed: 1926-03-16
Abstract: 272,600. Higgins, C. F. March 16, 1926. Valves controlled by pilot or relay valves.- A valve device particularly applicable for use in connection with boiler feed water heaters and of the kind in which a main inlet valve is actuated by fluid pressure under the the control of a float-actuated auxiliary valve situated in a drainage well, has a second auxiliary valve actuated by the closing movement of the main valve to maintain it in the closed position once it has moved to that position under the control of the float - actuated auxiliary valve. The main valve 15 has a supplementary hand actuating means 24 and is connected to a piston 12 having a leak orifice 16. Pressure is exhausted from the chamber 11 at the back of piston either through a passage 14 controlled by a float-actuated auxiliary valve or through a passage 17 controlled by an auxiliary valve 18. This valve is normally held to its seat by a spring 19, the lower abutment of which is coupled to a lever 21 pivoted at 22 and adapted to be engaged by the projecting end of the main valve as it closes and so relieve the load on the valve. A hand lever 23 is provided for resetting and for testing purposes.