baber/WOPTO huggingface dataset:
Patent GB-747113-A (GB)
Title: Improvements relating to combustion air-heaters
Inventor: GREAVES BRYAN HAROLD
IPC: F28D7/00
Filed: 1954-01-07
Abstract: 747,113. Thermal switches. DRAGONAIR, Ltd. Jan. 7, 1954, No. 444/54. Addition to 664,168. Class 38(5) [Also in Groups XI and XIII] In a combustion air-heater of the kind claimed in the parent Specification but not confined to such a heater provided necessarily with a switch of the cut-out variety, a control member 20, moved by differential thermal expansion of two different parts 2, 7 of the heater is disposed between a pair of movable abutments, e.g. the ends 40, 44 of arms 39, 43 of two bellcrank levers, either of which can be displaced to operate a member 32 of the switch 18 which may control the fuel supply or operate an indicator. Moreover, one abutment 40 is displaced to operate the switch when the differential temperature falls below a first value and the other abutment 44 to operate when the differential temperature exceeds a higher value. The air heater shown is of the kind described in Specification 735,152 [Group XIII] and combustion gases flowing in an annular space 9 heat the cylindrical wall 7 while air to be heated, flowing in the annular space 11 surrounding that wall, cools the surrounding wall 2 thus giving a difference of expansion when the heater is operating. The walls are secured. together at a flue outlet while resilient spacers 16 support the wall 7 at its free end. An adjustable screw 19 and its cap-nut 27, borne by the post 20, transmit the movement of the post towards or from the switch 18 to the lever ends 40, 44 respectively. The post projects radially from the wall 7 to which it is secured, through a slot 21 in the wall 2 covered by a spring-loaded plate 29 carried on the post. The switch 18 may be in parallel with a starting switch, so that, when starting, expansion of wall 7 releases the pressure of abutment 40 on the member 32 of the switch 18 and a circuit is made to keep the liquid fuel pump functioning or light a lamp when the starting switch is released: Failure of the heater will cause depression of the member 32 to the position it occupies when the heater is cold with subsequent stoppage of the pump or lamp. It may be arranged that the lamp lights only when combustion fails or there is overheating. Overheating causes pressure on abutment 44 on the other lever which presses on an arm 41 of the first lever so that the member 32 is again depressed and the pump stopped and the lamp put on or off. The arm 39, 43 of the bell crank levers are interconnected by a tension spring 47 and their interengaging edges 42 are arcuate, A stop 48 limits the travel of the levers away from the post 20.
Patent GB-831143-A (GB)
Title: Process for the manufacture of polyethylene polysulphide
IPC: C08G75/16
Filed: 1956-01-05
Abstract: Polyethylene polysulphide is prepared by reacting an inorganic polysulphide with ethylene chloride in the presence of a finely divided alkaline earth metal hydroxide, e.g. magnesium hydroxide, wherein a molar excess of at least 15% of the inorganic polysulphide is used such that the polyethylene polysulphide is obtained in a pulverulent form.  It is preferred that the chromium number of the ethylene chloride (the chromium number being the number of mg. of CrO3 consumed by 10 cc. of ethylene chloride) be within the range of 0-500.  In the example sodium polysulphide is prepared by mixing, with heating, crystalline sodium sulphide, sulphur and water.  There are then added, consecutively, aqueous solutions of NaOH and crystalline MgCl2, and ethylene chloride of chromium number 100, the latter being added while the temperature is maintained at 65-72 DEG C.  The mixture is then stirred at 90 DEG  C. for an hour, allowed to settle, decanted, made up with water and acidified with HCl to pH 4, the powder so obtained being filtered off with suction or centrifuged, washed, dried and sieved.  It is stated that the powder may be converted by heating or rolling at a raised temperature into rubber-like sheets, and that it may be vulcanized.
Patent GB-988219-A (GB)
Title: Sheet positioning mechanism
Inventor: BEER CLIFFORD NORTHMORE
IPC: B23D33/10
Filed: 1964-01-06
Abstract: 988,219. Metal sheet feeds. WEYBRIDGE MACHINE TOOL CO. Ltd. Feb. 26, 1964 [Jan. 6, 1964], No. 550/64. Heading B3W. A sheet positioning mechanism comprises feeding means adapted initially to engage a sheet to be slit and feed it towards a slitting member, said feeding means being formed to allow the sheet angular movement in relation thereto, and aligning means which position the leading edge of the sheet before slitting of the sheet commences. The apparatus consists of two feed rollers 1, 2, disposed centrally of the width of the sheet, the upper roller only, or both rollers being crowned, and aligning means comprising a pair of arms 7, pivoted on a shaft 8 and each having a spring loaded pawl 9<SP>1</SP> projecting from its upper surface. The sheet is fed forward by the rollers 1, 2, to slitting discs 3 and if it strikes one pawl first, skews until it strikes the other pawl. As slitting commences the arms 7 rotate until the pawls slip beneath the sheet. The arms are returned by spring-loaded plungers 12 and positioned by a detent 14 engaging a notch in a plate 13 mounted on the shaft 8.
Patent GB-448833-A (GB)
Title: Improvements in and relating to circuits for electric discharge devices
IPC: B23K11/24
Filed: 1936-01-07
Abstract: 448,833. Supply systems for resistance welding. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 7, 1936, No. 570. Convention date, Jan. 7, 1935. [Class 38 (iv)] [See also Group XL] Switching systems. An arrangement for electric spot welding comprises a pair of gas- or vapour discharge tubes 1, 2. opposedly connected in parallel, the ignition of the tube 2 being effected in dependence on the energization period of the tube 1 by means of a condenser 6 shunted by resistance 7 and located in the anode-current circuit of both tubes. The condenser is charged by a current impulse passing through tube 1 and when its voltage rises above that of the gridbias source 9 to which it is opposed the tube 2 is energized. The charge leaks away across resistance 7 to prepare for the next cycle. The time-controller 11 may be a rotating contact or an electric timing circuit and phase-displacer. The condenser 6 is charged through the dry-plate rectifier 8, in parallel with the primary of the welding transformer 5.
Patent GB-994229-A (GB)
Title: Thermionic energy converter
IPC: H01J45/00
Filed: 1963-01-04
Abstract: 994,229. Converting; vacuum switches. D. GABOR, and J. F. ENGELBERGER. Dec. 24, 1963 [Jan. 4, 1963], No. 575/63. Headings H2B and H2F. [Also in Division H1] In an arrangement for generating alternating current, one or more thermionic energy converters, of the type in which a main discharge is controlled by an auxiliary discharge, have their outputs switched to flow along two circuital paths in alternate sequence so as to energize an A.C. power output winding in opposite directions alternately, the switching taking place during momentary interruption of the auxiliary discharge. As shown, each thermionic energy converter is of a kind described in Specification 968,392 and comprises a pair of auxiliary anodes 4, 5 energized in push-pull from a winding on the output transformer so that the auxiliary discharge is switched from one to the other, with momentary interruption, at the end of each successive half-cycle. A mechanical commutator 6, for use in this circuit, comprises a repetitively operated two-way switch having switching contacts in the form of conical mating surfaces 15-18, Fig. 3, having cone angles greater than the angle of friction between the surfaces. Movable contacts 15, 16 are integral with a shaft 14 of a chromium-copper alloy which is subject to impulsive blows from projection 38 on rotating drum 39, acting alternately in opposite directions during intervals in which the current is zero. The stationary cones 17, 18 of a beryllium-copper alloy form part of an evacuated housing which is completed by member 23 and flexible end-plates 28, 35 with enamel-coated insulating gaskets 24, 33. During manufacture, accurate alignment is achieved by tightening screws 27, 44 so that both cones make contact with their counterparts 15, 16 and then releasing them by an axial distance of 0À005 to 0À01 ins. before brazing the metallic joints and softening the powdered enamel glass between flanges 25, 26 to produce a rigid joint between cones 17, 18. In an alternative arrangement, the switch 6 may be replaced by a pair of solid-state gated rectifiers having their emitter and collector electrodes connected in the two circuital paths, respectively, and having their base electrodes energized in anti-phase by signals derived from the main output winding, Fig. 5 (not shown). Alternatively, the thermionic energy converter may comprise a single auxiliary anode 68, Fig. 6. The auxiliary discharge is controlled by an unsmoothed, full-wave rectified signal derived from an oscillatory circuit 69, 70 energized from the output transformer 63 through an auxiliary winding 71. The main discharge is switched by a pair of silicon-controlled rectifiers 64, 65 controlled to conduct in alternate sequence by signals derived from the oscillatory circuit.
Patent GB-554835-A (GB)
Title: Improvements in or relating to instruments for the navigation of aircraft
IPC: G01C17/00
Filed: 1942-01-15
Abstract: 554,835. Course-recording apparatus. SMYTH, B. T., and MOORE, M. S., (Representative of MOORE, Q. S.). Jan. 15, 1942, No. 623. [Class 97 (ii)] A course-recording apparatus comprises a rotatable transparent grid plate 1 disposed above a map or chart. Below the map are disposed two endless transparent bands 5, 6 adapted to move at right angles to one another, a source of illumination being arranged to illuminate the map &c. The bands 5, 6 are driven by friction gearings 28, 29 from a spindle 24 which is itself driven by friction gearing 27 from a disc 23 driven by a motor at a speed proportional to that of the aircraft. The friction gearings 28, 29 are adjustable by means of the stems 35, 36 bearing on a rotatable cam 14. The wind speed and direction and the air speed and direction are set by hand, the wind speed &c. being represented by a slotted arm 12 and the air speed &c. by the length and direction of the radius from the centre of the cam to the axis about which the arm 12 can be swung, the third arm 15 representing thereby the ground speed and direction of the aircraft. Variation of this arm 15 is effected by a rotation of the grid plate and results in the movement of the friction gear 27 between the spindle 24 and the driving disc to vary the speed of the bands 5, 6. The grid plate 1 is provided with grid lines which are brought parallel with the track marking 11 the pointer 18 then indicates the true bearing of the aircraft while lines 9, 10 on the bands denote by their intersection the position of the aircraft as it moves along the required track. If the aircraft is steered into another course the grid plate is turned by hand into the required bearing altering the direction of movement of the intersection of the lines 9, 10 to show the position of the aircraft on its new course.
Patent GB-223779-A (GB)
Title: Mechanical apparatus for playing a parlour game
IPC: A63F7/06
Filed: 1924-01-09
Abstract: 223,779. Canale, M. A., and Frias, R. Jan. 9, 1924. - Table games.-Relates to apparatus for playing table football, polo &c. of the kind in which model figures are moved over a board by operators, and consists in detachably and rigidly mounting the figures in sockets which move in slots in the board, each figure being provided with a transverse strip of resilient material for engaging the ball. As shown, each figure 3 is mounted on a plate 4 extending into a socket 5 which projects through a slot in the board 1. The sockets are moved by endless cords 17 which pass round pulleys 12 at one end of the board and through eyelets 19 at the other. The spindles 13 of the pulleys extend through the board for operating purposes alternate pulleys being situated at opposite ends of the board. Figures 9 representing goal keepers are mounted on levers 10, one at each end of the board. Rubber strips 22 project from the bases of the figures for engaging the ball. The board is surrounded by a fence 7 having openings 8 to serve for goals.
Patent GB-255325-A (GB)
Title: Improvements in and relating to boots or shoes and the method of making the same
IPC: A43B7/14
Filed: 1926-01-09
Abstract: 255,325. May, J. W. Jan. 9, 1926. Foot-arch supports .-A shoe is provided with a leather insole 2, Figs. 1 and 2, forming a permanent part thereof shaped to present a convex arch-supporting portion 4 between its side edges which are secured to the shoe parts spanning the concavity of said arch. The arched shape of the insole is maintained by the way in which it is secured in the shoe and not by any pad or other supporting element. The support 4 may have any desired shape or location in the shoe. In the example shown, the part 4 is wider at its forward end, and the front face 50, Fig. 5, has a more abrupt slope than the face 51. This shape supports the meta-tarsal arch and also the longitudinal arch of the foot. The arch support can be formed in any suitable way as by placing the insole between male and female dies. When the insole blank is moulded before it is trimmed a pattern 10. Fig. 6, may be used with a recess 11 to receive the arch 4. The arch then is properly placed on relation to the finished outline of the insole. After being shaped the insole is reinforced by a support 53 of canvas spanning the concavity 7 and cemented or otherwise secured in position. The reinforced insole is then incorporated in the shoe.
Patent GB-995319-A (GB)
Title: Improvements in and relating to hand grips, particularly for motor vehicle bodies
IPC: B60N3/02
Filed: 1963-01-08
Abstract: 995,319. Hand grips. HAPPICH G.m.b.H. GEB. Jan. 8, 1963 [Jan. 12, 1962; Feb. 24, 1962], No. 782/63. Heading B7L. A handgrip, Figs. 1, 2, 3 and 4, comprises a yoke 1 of strip steel enveloped by synthetic material 3; base plates 4 to which the bare ends 121 of the strip are secured by screws 7 which also pass through the vehicle body K; and caps 9 which are clipped on to the bases 4 and are each formed with a pair of horns 13 which extend around the envelope 3 to that side thereof which faces the body K, the horns 13 having between them a gap 14, Fig. 2, through which the envelope is inserted. Lugs 5 are turned over from the base 4 to embrace recesses 6 in the strip end 121 and the base has a turn-up portion 8 which is stepped as at 811 to be overlapped by the horns 13. The upper edge 81 of the turn-up engages the envelope. The base 4 also has two pairs of lugs 12, Fig. 3, to be engaged by tongues 10 on the sides of the cap, the tongues engaging under the edges 11 of the lugs 12. In another embodiment the turn-up is in two parts spaced apart and each engageable by a cap horn. According to a further embodiment the cap horns engage in longitudinal recesses in the envelope the end of which engages, in part, the vehicle body, since in this instance the base plate is not formed with a turn-up portion. The envelope has two channels passing therethrough and is secured at each end to the strip steel by a pin, as described with reference to Fig. 8 (not shown).
Patent GB-103325-A (GB)
Title: Improvements in and relating to Jet Propulsion for Aquatic Vessels.
Inventor: KING ROBERT OWEN
IPC: B63H11/00
Filed: 1916-01-19
Abstract: 103,325. King, R. O. Jan. 19, 1916. Propelling, steering, and manoeuvring by water jets.-The stern of a submarine or other vessel is provided with a jet-producing impeller or turbine B, Fig. 1, surrounded by a casing E having inlet and outle! guide-vanes A, C, the latter being so shaped that the rearward path of the water from the turbine through the vanes remains parallel to the direction of motion of the vessel. This results in the efficient conversion of the pressure energy at the turbine into velocity energy at the discharge opening. In the form shown in Fig. 2, the jet passage is in the form of a hollow square and is fitted with pivoted deflectors D, operable by hydraulic or other means G, to discharge the water through steering-vanes V S or reversing-vanes V R.
Patent GB-1330993-A (GB)
Title: Mixture of l-dopa and 2-imino-5-phenyl-4-oxazolidinone used to treat parkinsons disease
IPC: A61K31/42
Filed: 1972-01-07
Abstract: 1330993 Compositions comprising L-dopa ABBOTT LABORATORIES 7 Jan 1972 [27 Jan 1971] 888/72 Heading A5B A pharmaceutical composition for use in the treatment of Parkinson's disease comprises an admixture of L-dopa and 2-imino-5-phenyl -4-oxazolidinone or an alkali metal or alkaline earth metal salt thereof. The compositions may be in the form of a suppository or in a form suitable for oral administration or injection.
Patent GB-455951-A (GB)
Title: Improvements in the production of glass-coated iron or steel articles
IPC: C23D5/00
Filed: 1936-01-10
Abstract: 455,951. Vitreous enamelling. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Hommel Co., O. ; 209, 4th Avenue, Pittsburg, U.S.A.) Jan. 10, 1936, No. 893. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 11, 1936.] [Class 56] Relates to the production of glass-coated metal articles, particularly enamelled articles of iron or steel, and consists of a method of securely bonding the enamel to the underlying metal. According to the invention, the enamel contains an oxidizing substance which, upon fusion of the enamel coating, oxidizes part of the iron or steel, such action being localized by screening the remaining parts of the surface from the oxidizing substance. The oxidizing substance may consist of an antimonate, uranate, manganate, or vanadate of the alkaline or alkaline earth metals. Preferably the antimonate is used, and the quantity is such as to afford a content of 5-12 per cent of antimony pentoxide in the frit. The screening may be effected by means of finely divided inert or refractory material which may be milled with the frit, or it may be prepared as a slurry and spread on the surface of the metal before it is coated with the frit. Preferably, the screening is effected by means of metal deposited electrically on the surface of the iron or steel. The deposition may be effected by any suitable means before the frit is applied, or deposition may take place during firing, the enamel serving as the electrolyte. Cobalt oxide, copper carbonate, silver chloride, potassium gold chloride, and bismuth oxychloride are suitable compounds for the purpose, and they may be incorporated with the frit during fusion or milling.
Patent GB-430181-A (GB)
Title: Improvements in or relating to means for lifting wheels of motor vehicles
IPC: B60S9/04
Filed: 1934-01-10
Abstract: 430,181. Jacking devices attached to vehicles. ALLEN, J., 112, Ladypool Road, Sparkbrook, Birmingham. Jan. 10, 1934, No. 944. [Class 79 (iii)] A rocker-stand a, in corporating feet h anc an associated ramp or incline i, for lifting a vehicle wheel, is rotat ably located on a flanged collar d carried by the brake shoe carrier, by plates f or an equivalent retaining ring. A detent k on a pin l, rotatably mounted in the collar d, and subject to the weight of an arm m, engages a notch n to retain the device in the raised out-of-use position, being retracted by raising the arm m directly or by a cable or other control from the dashboard of the vehicle.
Patent GB-656940-A (GB)
Title: Sheet metal fastening device
IPC: F16B37/04
Filed: 1949-01-13
Abstract: 656,940. Anchor nuts. TINNERMAN PRODUCTS, Inc. Jan. 13, 1949, No. 964. [Class 89(i)] An anchor nut is stamped out of.sheet metal such as spring steel with a bolt hole 14 flanged at 16. Fingers 20 at opposite sides 18 of the nut are connected thereto by downwardly extending parts 22 and slope upwards towards the body of the nut the ends being outwardly curved at 24 to facilitate application to a panel. The flange 16 enters a hole in the panel and the spring fingers anchor the nut in position.
Patent GB-905107-A (GB)
Title: Improvements relating to thread counting devices
Inventor: WILSON DAVID
IPC: G01N33/36
Filed: 1958-01-10
Abstract: 905,107. Testing and inspecting fabric. COURTAULDS Ltd. Jan. 9, 1959 [Jan. 10, 1958], No. 979/58. Class 42 (2). The number of weft threads or courses per unit length of a moving fabric is determined by viewing the fabric through a stationary interference screen as described in Specification 163,364, while the fabric is illuminated with a light which is stroboscopically interrupted, observing the interference pattern made by light passing from the fabric or from an image thereof on the screen, if necessary adjusting the stroboscopic frequency to produce a stationary interference pattern and reading the number of weft threads or courses per unit length from the calibrations on the screen as indicated by the interference pattern. In one arrangement, Fig. 1, the stroboscopic light source 1 illuminates the underside of the moving fabric 2 through a diffusing screen 3. The interference screen 4 is supported above the fabric and is viewed at 5 through a mirror 6. In another arrangement, Fig. 3, the source 1 illuminates the fabric through a condenser 7; light passing through the fabric and the screen 4 is reflected by a mirror 6 to a lens 8 which forms an image of the interference pattern on a translucent screen 9. In a modification, screen 4 is omitted, the image of the fabric itself on screen 9 being viewed through a suitably enlarged grating. In another arrangement, the fabric is illuminated from above and the screen 4 is viewed directly from above.
Patent HK-46194-A (HK)
Title: A method of controlling the empimeric distribution in the preparation of 16,17-acetals or ketals of pregnane derivatives
Inventor: JAKUPOVIC EDIB
IPC: C07J71/00
Filed: 1994-05-12
Abstract: A method of controlling the epimeric distribution in the preparation of 16,17-acetals of pregnane derivatives characterized in reaction of a corresponding 16,17-acetonide with an aldehyde or ketone in a) hydrocarbon solvent wherein the solubility of the pregnane derivative is less than 1 mg/l or in a halogenated hydrocarbon solvent together with a hydrohalogen acid or an organic sulphonic acid as catalyst and in the presence of small grains of an inert material in the reaction medium or b) a halogenated hydrocarbon solvent together with a hydrohalogen acid an organic sulphonic acid as catalyst and in the presence of an epimeric distribution modifier.
Patent HU-T64291-A (HU)
Title: Method for racemizing non-racemic 3-oxo-cyclopentane-carboxylic acid or 3-oxo-cyclohexanecarboxylic acid, as well as their esters produced with alkohols containing 1 to 6 carbon atoms
Inventor: SOBOTTA RAINER
IPC: C07C62/24
Filed: 1991-07-31
Abstract: PCT No. PCT/EP91/01434 Sec. 371 Date Apr. 16, 1993 Sec. 102(e) Date Apr. 16, 1993 PCT Filed Jul. 31, 1991 PCT Pub. No. WO92/02483 PCT Pub. Date Feb. 29, 1992.Racemates are obtained from non-racemic 3-oxocyclopentane or 3-oxocyclohexane carboxylic acids or their esters by esterification and ketalization of the non-racemic acid with orthoformic acid ester in an alocohol, racemization and hydrolysis of the product obtained with an alcoholate and isolation of the racemate.