baber/WOPTO huggingface dataset:
Patent GB-699065-A (GB)
Title: Improvements in air operated automatic controller mechanisms
Inventor: GROUT JOHN ARTHUR MUNFORD
IPC: F16K31/126
Filed: 1947-03-28
Abstract: 699,065. Fluid-pressure servomotor-control systems. KENT, Ltd., G. March 24, 1948 [March 28, 1947], No. 7255/52. Divided out of 699,011. Class 135 An air pressure controller mechanism of the integral and proportional, or integral, proportional and derivative type, has means for influencing the pilot valve, e.g. a flapper controlling a nozzle. by a movement derived from the pressure in the integral bellows whereby the offset is substantially eliminated. A meter float 2 actuates, through one end 2A of a floating lever 1 and sensitivity adjusting link 5, a flapper 4 controlling a nozzle 3 fed with pressure air at 12 through a resistance 13, for controlling, e.g. a liquid level by a valve 11. The other end 2B of the lever is moved through a link 19 and bell-crank 14, 18, by a bellows 6, one side of which, fed with air at 8, provides a proportional chamber, and the other side, fed through an integral resistance 9, provides an integral chamber. A derivative resistance 10 may be incorporated as shown. Normally when a prolonged error is counteracted, the meter float detects a small offset in the controlled variable which slightly displaces the flapper in the nozzle throttling range in order to produce the control effect. In the invention, no offset is needed because the flapper is slightly displaced by being fulcrumed on a frame 21 which is pivoted about the .point 22 by a diaphragm, bellows or Bourdon tube 23 having a preselected spring rate and pressure-fed from the integral bellows.
Patent GB-456448-A (GB)
Title: Improvements relating to screw propellers
IPC: B64C11/34
Filed: 1935-03-08
Abstract: 456,448. Screw propellers. C.L.W. AVIATION CO., Ltd., Gravesend, and WELMAN, F. S., 55, Pinnacle Hill North, Bexley Heath, both in Kent. March 8, 1935, No. 7306. [Class 114] Variable-pitch screw propellers of the kind in which the blades are adjustably mounted in a hub movable around and along the propeller shaft are swingable about towage points connected with the shaft and offset from the longitudinal axes of the blades, these towage points transmitting the torque of the shaft to the blades and the tractive efforts of the blades to the shaft. The hub b having sockets to receive the blades is mounted so as to be rotatable upon a sleeve l1 which is capable of sliding along the propeller shaft e within limits set by a stepped portion p of the shaft and an adjustable collar o. The blades a have at their roots a screwed sleeve i with a flange i<1> to take the thrust ball race j<1>. Pins mare passed through the sleeve and blade root and are adapted to anchor a central piece l carrying an eccentric towage pin e which constitutes the towage point. The pin e is linked to a pin g mounted between plates h on a boss h<1> secured to the propeller shaft. Under the action of the driving forces, the hub moves around and along relatively to the shaft to a position of equilibrium and in so doing the pitch of the propeller blade is adjusted. For the purpose of an initial adjustment, the holes through which the pins m pass are elongated whereby the central block l may receive a setting relative to the blade root.
Patent GB-492171-A (GB)
Title: Buoyant soap cake
IPC: C11D17/02
Filed: 1937-03-12
Abstract: <PICT:0492171/III/1> A buoyant single-user tablet is formed from a tubular blank of soap by compressing so as to make the ends 2 closed thicker than the shell 1.  The blank may be formed with ribs 3, preferably longitudinal, and with more than one passage therethrough, each passage being circular, rectangular, or of any desired crosssection.  Reference has been directed by the Comptroller to Specifications 7228/97, 15894/97, and 9510/99, [all in Class 91].
Patent GB-377245-A (GB)
Title: Improvements in coatings for motion picture screens
IPC: G03B21/60
Filed: 1931-03-10
Abstract: <PICT:0377245/III/1> <PICT:0377245/III/2> A reflecting coating for kinematograph projection screens comprises a white or light-coloured metallic oxide and a binding agent, together with a variable amount of hygroscopic material such that the time required for drying is independent of atmospheric conditions.  The metallic oxide preferably is titanium oxide which may be mixed with zinc oxide to reduce any tendency to chalkiness.  Suitable binding agents are gelatine, glue or casein.  The hygroscopic material may consist of glycerine, acetic acid or magnesium chloride; or mixtures thereof.  The Specification as open to inspection under Sect. 91 (3) (a) describes also a screen comprising a fabric, e.g. paper, layer coated with an irregular surface layer over which is applied a colour filter layer to reduce glare.  The surface coating composition, consisting of titanium oxide, boiled linseed oil, raw linseed oil, kerosene, and/or turpentine is applied to the paper 6, Fig. 1 (Cancelled) by a rubber or gelatine roller 5 co-operating with a pressure roll 7, the composition being supplied to the roller 5 from a vessel 1 through metal rollers 2, 4 and an intermediate rubber roller 3.  A similar coating machine is employed for the filter layer, the intermediate metal roller 4 being engraved with a small, diamond-shaped pattern. Fig. 3 (Cancelled) shows such a screen having a paper base in the form of a roll 21 held by a weighted detent 22, 25 from which a section is drawn down and passed through a clamp 23.  This subject-matter does not appear in the Specification as accepted.
Patent GB-398247-A (GB)
Title: Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems
IPC: H04N3/08
Filed: 1932-03-11
Abstract: 398,247. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, LEVIN, N., 17, Sutherland Gardens, East Sheen, and WALKER, L. E. Q., 1, Copt Hall Gardens, Mill Hill, all in London. March 11, 1932, No. 7369. [Class 40 (iii).] Light, incident on one reflecting-surface 1 of double-mirror structures or equivalent prisms 6 on a mirror wheel 3, is reflected to a second reflecting-surface 2 before being reflected to a picture screen. The mirror 1 is fixed and - the mirror 2 adjusted to vary the angle between successive double mirrors to provide the different scanning lines. The angle between the mirrors preferably approximates to 60‹, Fig. 7, so that the incident ray is reflected more than twice before emerging. The angle between the mirrors can be kept constant and the mirrors tilted as a whole. When a prism is used, a lens 7 covers the non-reflecting surface.
Patent GB-622393-A (GB)
Title: Improvements in and relating to electric coils
IPC: H01F41/12
Filed: 1947-03-18
Abstract: 622,393. Electric coils. BRITISH THOMSON HOUSTON CO., Ltd. March 18, 1947, No. 7468. Convention date, March 19, 1946. [Classes 35 and 38 (ii)] A multi-layer coil has the inter-layer insulation curved around and back over the edges of the outer layer and the coil is embedded in plastic insulation. As shown, the secondary winding 6 of a transformer is separated from the primary 5 by layers of crepe paper 7 having the margins folded over as at 8 and the entire coil is embedded in insulation 9 applied in the liquid state and hardened by a process described. Specification 540,168, [Group IV], is referred to.
Patent GB-275928-A (GB)
Title: Improved process for the production of labile bitumen emulsions
IPC: C08L95/00
Filed: 1927-03-18
Abstract: 275,928. R³tgerswerke Akt.-Ges., and Kahl, L. Aug. 13, 1926, [Convention date]. Emulsions, making.-Emulsions of tar, petroleum tar, or asphalts for use in road construction are prepared by adding the liquefied material with stirring, to alkaline reacting paste-like basic magnesium salts. The Specification, as open to inspection under Sect. 91 (3) (a) describes also the use, for this purpose, of substances such as pasty iron hydroxide, obtained as a waste product from gas manufacture or in the extraction of alumina, precipitated aluminium hydroxide zinc oxide, and starch paste containing about 5 per cent of alkali. This subject-matter does not appear in the Specification as accepted.
Patent GB-177163-A (GB)
Title: Improvements in the manufacture of drills
IPC: B21K5/02
Filed: 1922-03-15
Abstract: 177,163. Valayer, A. A. March 18, 1921, [Convention date]. Drawings to Specification. Drills.-A, process for making twist drills consists in : (1) flattening and lengthening one portion of a high speed steel bar by forging; (2) shaping the flattened portion to approximately the drill-section; (3) twisting the sectioned part to form helicoidal edges of increasing pitch; (4) forming the cutting point; (5) shaping the shank; and (6) finishing by tempering, milling and rectifying in the usual manner. Orifices may be provided in each rib for lubricating and cooling thrcugh the drill centre. The Specification as open to inspection under Sect. 91 (3) (a) also described the application of the process to the product of twist drills having flutes of uniform pitch. This subject-matter does not appear in the Specification as accepted.
Patent GB-943996-A (GB)
Title: Preparation of heat sensitive copying materials
IPC: B41M5/32
Filed: 1960-03-04
Abstract: 943,996. Thermographic copying materials. KALLE A.G. March 4, 1960 [March 12,1959], No. 7707/60. Heading G2C. Heat-sensitive copying material is produced by coating a support as of paper, regenerated cellulose, cellulose acetate, nylon, or polyester with a mixture containing ferric salts and a long chain fatty acid suspended therein and binders, aromatic polyhydroxy compounds and aliphatic polybasic hydroxy carboxylic acids dissolved in an organic solvent and then drying the coated support. Typically ferric stearate is dispersed in a solvent such as acetone, methyl ethyl ketone, methanol, or ethanol in which is dissolved catechol or 3 : 4-dihydroxy-tetraphenylmethane, citric, tartaric or malic acid, and a binder such as cellulose ethers or esters, polyvinyl acetals, acrylic or methacrylic acid ester polymers, nylon, polystyrene, rubber, cyclized rubber, or other natural or synthetic resins.
Patent GB-944623-A (GB)
Title: Method of and apparatus for treating metal scrap, particles or the like contaminated with volatile and/or combustable substances
Inventor: EHRLICH FRIEDRICH
IPC: C23G3/00
Filed: 1961-03-03
Abstract: <FORM:0944623/C3/1> Metal scrap contaminated with combustible matter such as oil, paper or plastic is cleaned by feeding it down a shoot 19 to a rotary chamber 1, where the combustible matter is at least partly burned or volatilized in a controlled current of air.  A jacket 10, initially heated by gases from a furnace 11, maintains the temperature within the rotary drum within the range 300-450  DEG C., and a pilot burner 21 initiates the partial combustion of the contaminants. The air flowing through the furnace 1 from the discharge end carries fumes to a smoke chamber 2 leading to a secondary combustion chamber 5 where a burner 6 completes the combustion with air from an adjustable inlet 7.  The jacket 10 may be supplied with cooling air from a blower 13.  Dampers 9, 17, 12, 14 in the flue outlet, the jacket outlet 16 and the inlets to the jacket 10 control the flow of air through the furnace from adjustable inlets at the discharge end, and the flow of heating or cooling gas through the jacket.  Lifters of varying inclinations are arranged in the zones 23, 24, 25 of the rotary drum and an ash pocket 4 is disposed below the smoke box 2.
Patent GB-522462-A (GB)
Title: Exhaust silencing and spark arresting device
IPC: F01N3/04
Filed: 1939-03-10
Abstract: 522,462. Exhaust-silencers. BURGESS BATTERY CO. March 10, 1939, No. 7854. Convention date, March 21, 1938. [Class 7 (ii)] An exhaust-silencer and spark-arrester comprises a casing 10 with open-ended inlet pipe 19 and outlet pipes 20 overlapping somewhat so that the flow of the gases is reversed, the sparks or solid particles falling on to a baffle 15 and through holes 22 therein so as to enter a quiescent space 16 beneath the baffle. The casing has an outlet at 13, and a deflector 21 is arranged above the inlet' pipe 19, the pipes 20 being. perforated. The chamber 16 also serves as a resonator, and is fitted with a cleaning plug 23. In a modification, the inlet pipe is arranged towards one side of the casing and the outlet pipes towards the other side, and the pipes may be welded together ; also the inlet pipe is perforated and the outlet pipes each have a single hole communicating with a resonating-chamber formed by a baffle near the upper end of the casing. Other arrangements of the baffle 15 are described, and both inlet and outlet pipes may be perforated. Also water may be sprayed through a nozzle in the side of the casing, to assist the clearing away of the solid particles. Figs. 7 and 8 show a horizontal form with inlet pipe 85 and outlet pipe 86 overlapping within a central chamber 81 between partitions 83, 84, the sparks falling upon baffles 87 ... 90 and into a quiescent space below. Either one or both of the end chambers 80, 82 may have sound-absorbing material therein surrounding the tubes. In a further modification of the vertical form, the outlet tube may be D-shaped with the flat side of the D imperforate and directed towards the inlet tube.
Patent GB-526257-A (GB)
Title: Improvements in bed motions particularly for printing presses
IPC: B41F3/58
Filed: 1939-03-10
Abstract: 526,257. Printing - machines. AMERICAN TYPE FOUNDERS, Inc. March 10, 1939, No. 7866. Convention date, July 7, 1938. [Class 100 (ii)]  Bed-reciprocating apparatus.-In a bed-reciprocating apparatus which is especially applicable to printing- machines, the bed is reciprocated by a compound travelling gear 67, Fig. 1, carried by a crosshead 60 which is reciprocated on guides 62, 64 by means of a crank operated by variable planetary gearing which is so constructed that the bed moves during its printing stroke at a substantially constant speed but is returned at a variable and higher speed. The mechanism is similar to that described in Specification 526,256, but the gear ratios of the. gears of the planetary gearing are different, and the compound travelling gear multiplies the movement of the crosshead by a larger ratio. The crosshead 60 is reciprocated by a crank-pin 40 on a planetary gear 36 which is carried by a crank 32 to rotate around a sun wheel 42 free upon the main driving shaft 26 which carries the crank 32. The sun wheel is given an oscillating motion by a crank, driven from the main drive gear 24, which oscillates the rock shaft 44 connected to the sun-wheel. The compound gear 67 has one pinion 69 in engagement with teeth 70 on the guide rod 62, and a further pinion 68 engaging a rack 16 on the bed, the bed having a motion equal to 2 2/3 of that of the crosshead. The rod 62 can be finely adjusted by a screw to vary the setting of the gear 62 at the commencement of the printing operation. The sun-wheel may be external to the planet gear, and the planet gear in this case is the diameter of the sun-wheel. The path of the driving-crank is that of a modified prolate epitrochoid in one case, and a modified prolate hypotrochoid in the other. Specification 476,239 also is referred to.
Patent GB-900303-A (GB)
Title: Compensating method and apparatus for vibration exciters
IPC: G01M7/02
Filed: 1959-03-06
Abstract: 900,303. Vibrator supply arrangements. TEXTRON ELECTRONICS Inc. March 6, 1959 [March 10, 1958], No. 7866/59. Class 118. [Also in Group XL (c)] Resonance effects in a vibration exciter due to a specimen are compensated by feeding the vibrator input signal through an equalizer (see Group XL (c)) comprising differentiating and integrating circuits, the input/output characteristic of the equalizer being as shown in Fig. 1. Controls are provided for adjusting the frequencies of the " peak " and " notch " points of the characteristic and also the damping of these points. Specification 900,302 is referred to.
Patent GB-1138954-A (GB)
Title: A panel, in particular for use in an up-and-over door
IPC: E06B3/72
Filed: 1966-02-23
Abstract: 1,138,954. Door panels. FRITS BODE MECHANISCHE BOUWMATERIALEN N.V. 23 Feb., 1966 [1 March, 1965], No. 7872/66. Heading E1J. A panel 1 (Figs. 1 and 2) particularly for an up-and-over door, in the form of an open shallow box is made mainly of a plastics material, e.g. polyester resin with glass fibres, the walls 2 being oblique with respect to the plane of the panel and having an outward stiffening edge 3 all round which can serve as a stop. Any non-torsionable element, such as a rigid tube 10, is fitted where shown, connected with the wall of an indentation 11 and through it may pass bars to lock the door. The panel 1 may have to be strengthened by ribs and may consist of two layers of resin as above between which is a layer of filling material. There may be vents in the lower wall and the lower edge may have a flexible sealing strip thereon. The opening gear can be fastened to the vertical sides, the lock being in the indentation 11, coupled to the panel in the region of the rigid tube 10.
Patent GB-1243155-A (GB)
Title: Castable nickel base alloy
IPC: C22C19/00
Filed: 1970-02-19
Abstract: 1,243,155. Nickel base alloy. FORD MOTOR CO. Ltd. Feb. 19, 1970 [March 10, 1969], No. 8001/70. Heading C7A. A nickel base alloy, having excellent strain resistance at 1700‹ F., comprises:- Al 3-7% B 0À005-0À02% C 0À04-0À2% Cr 4-8% W 5-10% Zr 0À05-0À2% Co up to 10% Mo up to 2% Nb up to 5% Ta up to 8% and Ti up to 4% the balance, apart from impurities, being Ni. In the micro-structure 50-70 volume % of gamma prime is precipitated from gamma and the lattice parameters of the gamma and gamma prime phases differs by less than 0À002 Š.
Patent GB-725715-A (GB)
Title: Process of and apparatus for heat-treating pellets of finely divided mineral solids
IPC: C22B1/24
Filed: 1953-03-24
Abstract: 725,715. Shaft furnaces. ERIE MINING CO. March 24, 1953 [March 26, 1952], No. 8070/53. Class 51 (2). [Also in Group II] A shaft furnace for heat treating pellets of ores or other mineral solids comprises an induration chamber A to which the pellets are delivered and a cooling chamber B from the bottom of which they are discharged, the flow of gases upwardly through the furnace being partly from openings 11 supplied with cooling air by a blower 16 and fitted with probes 12 to prevent agglomeration of pellets, and partly gases at about 2000‹ F. obtained from the combustion chamber 6 provided with fuel at 20 and dust-free air by blowers 23.
Patent GB-412156-A (GB)
Title: Process for the production of flanged metal discs, more particularly for disc-wheels for power vehicles
IPC: B21D53/26
Filed: 1934-03-15
Abstract: 412,156. Making vehicle wheels. AUTO-RADER UND FELGENFABRIK M. HERING AKT.-GES., Ronneburg, Thuringia, Germany. March 15, 1934, No. 8187. Convention date, Nov. 2, 1933. [Classes 83 (ii) and 83 (iv).] A flanged wheel disc is cut from a square a of less size than the unflanged disc diameter b, the flange therefore when formed having a varying width, narrow at A and wide at B where the attachment to a rim can be made.
Patent GB-150372-A (GB)
Title: Improvements relating to electric arc welding
IPC: B23K35/04
Filed: 1919-04-02
Abstract: 150,372. Heyes, F. J. April 2, 1919. Heating by electricity.-In the electric arc welding of aluminium, an aluminium electrode is used in conjunction with a flux of cryolite. The flux may be applied to the outside of the electrode in paste form preferably 1/32 of an inch thick for a No 8 S.W.G. electrode, and may be secured by an aluminium wire, thin sheet gauze, or a wrapping of cotton or other fabric, or a binder may be incorporated in the paste. The flux may be placed in a hollow electrode of aluminium or in a series of transverse holes therein or in both. Common salt may be added to the cryolite for the more ready application and fixing of the flux and to cause the molten metal to flow more evenly by altering its surface tension. Fifteen per cent of salt may be added before mixing, or the cryolite made into a paste with a ten per cent solution of salt. Salt may be replaced by sodium bisulphate. Aluminium fluoride may be added to the flux to reduce the density when molten. According to one Provisional Specification, a saturated solution of salt may be used in making the paste. Reference has been directed by the Comptroller to Specification 6138/09, [Class 83 (iii), Metals, Cutting &c.].
Patent GB-540031-A (GB)
Title: Electric retarded action switch
IPC: G04F3/02
Filed: 1940-05-09
Abstract: 540,031. Retarded action electric switches. DESSAU, H. M., (trading as DANSK AFBRYDERFABRIK V/HELGE. M. DESSAU). May 9, 1940, No. 8382. [Class 38 (v)] In a push-button switch an escapement mechanism which retards the opening of the contacts on release of the button is coupled by a one-way clutch formed by a helical spring carried by a drum, so that the escapement is not operative during depression of the button. As shown, the button operates a verticallymovable forked member 21 engaging a roller on an arm 17 extending from the lower of two spring-connected toggle-levers 2, 18, the upper of which carries bridging contacts which enter between contact springs 3 when the toggle is thrown over by depressing the button. The forked member 21 carries a plate 11 to which is secured a screw 10 carrying a nut 12, the latter, after the button has been depressed to a certain extent, engaging an eye 9 loosely surrounding the screw 10 and formed on the upper end of a rod 7 pivoted on an arm 6 rotatably mounted on a drum 4 on a shaft geared to the escapement mechanism (not shown). One end of a helical spring 5 surrounding the drum is attached to the arm 6, the downward movement of the arm occurring when the button is depressed tending to uncoil the spring so that it slips on the drum. On release of the button, the return movement of the parts, produced by a spring 14; is retarded owing to the spring 5 gripping the drum 4 so that the escapement gear is brought into operation. The time of retardation may be adjusted by movement of the nut 12 on the screw 10.
Patent GB-1422754-A (GB)
Title: Appratus for joining pipes by means of connecting pieces
IPC: B29C65/02
Filed: 1974-02-25
Abstract: 1422754 Coupling pipes P O SUNDIN 25 Feb 1974 [10 April 1973] 8389/74 Heading F2G [Also in Division H5]  Pipes 1 and 2 of polyethylene are joined by a connecting piece also of polyethylene and having tubular sections 3, 4 fitting over the pipes 1, 2 and a bellows fold 5 which will take up movement due to temperature variations after the sections 3, 4 have been fixed to the pipes 1, 2 by welds 6. Apparatus for forming the welds 6 is described this being shown in part section in Fig. 4 and comprises an annular body formed of two ring halves, as 10, hinged together and lockable in place about the pipe 1 and connector section 3 by a clasp (not shown). Each ring half is provided with an electric resistance heating element 13 and its inner surface is composed of surfaces 20, 22 to rest on the pipe 1 and connector section 3 respectively and joined by a surface 21 to form the outer face of the weld. After heating pressure is applied axially by means of handles 19 attached to load distributing rings 18 on the ring halves, as 10, or attached directly to the ring halves, and this axial pressure forms the weld. Further material can be added to the weld if desired. In an alternative construction the handles are mounted on the resistance heating elements before they enter into the appropriate ring half.