baber/WOPTO huggingface dataset:
Patent GB-569171-A (GB)
Title: Process for the manufacture of ethylenebisiminodiacetic acid
Filed: 1943-07-28
Abstract: Salts of ethylenebisiminodiacetic acid are prepared by interacting ethylene dihalides with water-soluble salts of iminodiacetic acid, preferably the alkali metal or ammonium salts.  By acidification of the reaction product, there is obtained the free ethylene bisiminodiacetic acid.  The ethylene dihalides employed are the dichloride and dibromide.  The reaction may be carried out in the presence of an acid binding agent and desirably, in the presence of a solvent and for this purpose water, dioxane, or a mixture of these are suitable.  To facilitate dispersion of the ethylene dihalide, an emulsifying agent may be present, for example, the sulphated long chain fatty alcohols and sulphonated unsaturated fatty acids such as oleic acid.  The reaction is slow at atmospheric temperature and higher temperatures are advised, for example, 80-100 DEG  C. Pressures greater than atmospheric may be employed.  The products so obtained may be used for dissolving lime soaps.  Iminodiacetic acid may be made according to the method described by Eschweiler (Annalen, 1894, 278, 230), in which hydrogen cyanide and hexamethylene tetramine are reacted to form the dinitrile which is hydrolysed to yield the acid.  Examples are given describing the preparation of the above acid and its sodium salt.
Patent GB-1345454-A (GB)
Title: Photo-printing machine
IPC: G03B27/80
Filed: 1972-03-16
Abstract: 1345454 Photoprinter METEOR-SEIGEN APPARATEBAU PAUL SCHMECK GmbH 16 March 1972 [23 April 1971] 12281/72 Heading G2A A photoprinter includes a measuring station 4 for assessing the translucency of an original to be printed, a store I for a control value signal representing the translucency, an exposure station 8 and a drive circuit 50 for conveying the original 2 and a transfer sheet past the exposure station at a speed dependent on the control value signal. Light deflected from printing source 9 is incident on the original and subsequently on photo-cell 5. This voltage is then amplified at 21 and passed through S 1 , actuated on completion of measurement to the signal former comprising. MOSFET 22, capacitor 26 and amplifiers 28, 30. The signal former compares the voltages at A and B and opens MOSFET when A>B to charge the capacitor but closes it through comparator 24 when B>A. The movement of the original to the exposure station actuates transfer regulator 40 through a feeler or other switching device to close switch S 2  and pass the signal from capacitor 26 to capacitor 36 to control the drive circuit 50 through amplifier 38. S 2  is then opened and the original is conveyed past the exposure station. A brake may be provided to allow smooth transitions between different drive speeds. Printing papers of differing photo-sensitivity may be selected, cut and conveyed to the exposure station, in which case, their different characteristics are accounted for by switching in sets of resistors 62, 63 in parallel with amplifier 21. Different filter and diaphragm settings may also be pre-set by switches 65. Switch S 3  actuated by the original movement and resistor 29 are provided to discharge capacitor 26 after each original has passed the measuring station.
Patent GB-690780-A (GB)
Title: Improvements in or relating to ball joint assembly
IPC: F16C11/06
Filed: 1951-05-25
Abstract: 690,780. Ball and socket joints. THOMPSON PRODUCTS, Inc. May 25, 1951 [Nov. 30, 1950], No. 12291/51. Class 65 (ii) A ball joint comprises a stud 29, an arm 11 having an eye through one portion thereof, a socket member 20 non-rotatably fixed in the eye by means of serrations therebetween, and means for retaining the stud and bearing means co-operating therewith in proper bearing contact with the socket member. As shown, the stud rotates within a ball member 26 on ball bearings 35 disposed between the latter and a head 33 of the stud. The socket, of cup-shape, has a flared end-portion 24 the peripheral edge of which engages by means of serrations 19 in an enlarged portion 18 of the eye. The latter is closed by a cover 42 which abuts the socket member and is also engaged in the portion 18 by the serrations. The stud head beats in a dished seat 41, between which and the cover a coiled compression spring 45 is interposed. A lubricator 46 is fitted, and the seat is provided with peripheral notches 47 and a central hole 48 for lubricant, while the ball member is formed with external spiral lubricant grooves 49. The bearing surfaces may be case hardened. In a modification the arm is plate shaped. The cup-shaped socket, which is secured within the eye by peripheral serrations, has a flexed end portion which bears against the lower surface of the arm and seats in an annular groove provided in a cover, the latter being bolted to the arm.
Patent GB-1350886-A (GB)
Title: Container construction
IPC: B65D75/34
Filed: 1973-03-14
Abstract: 1350886 Package containers LEHIGH PRESS Inc 14 March 1973 [12 July 1972] 12327/73 Heading B8C A package 11 for pharmaceutical products, comprises two sheets 12, 13 made for example of P.V.C. of about 0À01 thickness and which are sealed together around their edges, the front sheet 13 being formed with a blister 15 to accommodate contents, such as one, or two capsules, and a U-shaped score 22 being formed in the blister region of the front sheet 12 which is of sufficiently frangible structure to fracture through, upon flexure of the sheets along, the score 22. The blister 15 is located nearer to one longitudinal edge 18, 20 of the package than the opposite edge 19, 21 and the bight region 23 of the U-shaped score line 22, which bight 23 may be straight, or curved, extends into the broader side flange formed by the overlapping layers 17, 27 of the sheets 12, 13. Packages 11 can be detached from a strip 10, Fig. 1, by tearing along lines of weakness 16. By continuing the break in the score 20 along the bight and leg portions 22, 24 a tab 35, Fig. 5, is defined which provides access to the contents of the package.
Patent GB-200629-A (GB)
Title: Improvements in or relating to dirigible headights for automobiles
IPC: B60Q1/124
Filed: 1922-05-03
Abstract: 200,629. Otremba, F. May 3, 1922. Vehicle lamps, directing.-In means for directing motor-vehicle head lamps from the steering- gear, the lamp-carrying spindles 10 are journaled in bearings 9 secured to the front axle 1 of the vehicle, and are operated by arms 21 connected by links 18 to sockets 16 adapted to be screwed upon bolts 5 which are usually provided on the steering-knuckles 3 of cars of the Ford type to which the invention is applicable. The spindles are further supported by bracket arms 11 secured to the body of the car, and the lamps are adjustably mounted on the spindles as indicated at 15.
Patent GB-1039264-A (GB)
Title: Improvements in and relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1963-03-29
Abstract: 1,039,264. Refrigerating. ELECTROLUX Ltd. March 29, 1963 [April 2, 1962], No. 12500/63. Heading F4H. In a continuous cycle absorption system of the type described in Specification 919,212, the excess refrigerant vapour from the condenser is discharged into the absorber vessel at a point which, together with the inlets for vapour from the evaporator and solution from the absorber, is located in a section of the absorber whose horizontal extent is at most one half and preferably less than one-third of the horizontal extent of the absorber vessel. As shown, the conduit 36 which conveys the refrigerant vapour from the condenser is connected to the conduit 14 which conveys the mixed vapours and excess liquid refrigerant from the evaporator to the absorber vessel 15.
Patent GB-1108686-A (GB)
Title: Process for purifying crude pyridine bases
IPC: C07D213/06
Filed: 1966-03-22
Abstract: Crude pyridine bases are purified by rectifying them together with 5 to 50% by weight of water based on the weight of the bases to form an azeotropic mixture of the pyridine base and the water and separating the mixture from the impurities contained in the starting pyridine bases.  The rectification may be effected at 71-144 DEG  C. and after the distillation, four fractions are obtained, i.e. (a) an azeotropic fraction consisting of various impurities and water; (b) an azeotropic fraction consisting of the pure product and water; (c) anhydrous pure product; and (d) the still residue, and the amounts of the above fractions obtained may be regulated by varying the amount of water employed. Any product in fraction (a) may be recovered by conventional means and the whole process may be effected continuously.  Impurities which may be removed by the process include benzene, toluene, o-, m- and p-xylenes, methacrylonitrile, isobutyronitrile and dimethylamino acetonitrile, permanganate reducible materials and Ehrlich's reagent positive material.  A form of apparatus suitable for carrying out the process is described. Reference has been directed by the Comptroller to Specification 766,387.
Patent GB-1380027-A (GB)
Title: Apparatus for making fibre preforms
IPC: B29C41/36
Filed: 1973-03-16
Abstract: 1380027 Moulding fibre preforms STRUCTURAL FIBERS Inc 16 March 1973 12722/73 Heading B5A Apparatus for forming "test-tube shaped" preforms (Fig. 3) comprising chopped fibres bound together by a thermosetting binder includes a horizontally rotatable perforated female mould 20, a fibre spray gun 80 provided with a tube 90 for dispensing binder and a suction chamber 34 for retaining fibres on the inside surface of the mould. The spray gun 80 is carried into the mould 20 along the axis thereof by a carriage 57 to dispense fibres on the closed spherical end (see upper phantom lines), is lowered and withdrawn to coat the side wall of the mould (see lower phantom lines). The spray gun 80 is mounted via a ball joint 72 on a carriage plate 70 to the right of its centre of gravity and is lowered by a cam 96 acting on a spring balanced bell-crank 97 connected to the spray gun through a link 95 and a pin 105 which passes through a slotted plate 107 to allow the gun to be swung to one side (Fig. 1) when the coating has been completed. A hood 36 may be lowered via a double-acting plunger 38 to seal the mouth of the mould and hot air provided by a gas fired burner 43 may be drawn through the preform by the suction blower 40 of the chamber 34 to cure the binder. The mould 20 is mounted on a ring 26 which is supported by rollers 32 and driven by a motor 31 via a shaft 30, plate 28 and fingers 29 of a drive spider 27. The spray gun 80 includes a chopper comprising a bladed roller 84 and a rubber back-up roller 85 for chopping filaments 86 fed thereto and a blower 88. The preform may be impregnated with a thermosetting resin and moulded into a tank for water softener using an expansible bag technique.
Patent GB-738272-A (GB)
Title: Improvements in and relating to conveyor belt drums
IPC: B65G43/04
Filed: 1952-05-20
Abstract: 738,272. Endless conveyers. COAL INDUSTRY (PATENTS), Ltd., and WALKER, D. N. June 26, 1953 [May 20, 1952], No. 12723/52. Class 78 (1). The driving drum of a conveyer belt is provided with thermally expansible means which, when the drum becomes overheated, expands so as to actuate a trip to cut-off power to the drum. As shown, the thermally expansible unit 4 is mounted radially within the drum 1 and comprises a pin 5 which, upon expansion of the unit under the action of heat, is projected beyond the surface of the drum so as to strike a trip rod 6 and operate a switch (not shown) to cut off the supply of power to the driving motor (not shown) and, may be, operate suitable alarm signals. The member 4 comprises a cylinder 8 slidably. mounted in a boss 9 formed on the inner surface of the drum and closed at its inner end by a cap 13, and a piston 10 carrying the pin 5 and passing through a bore in a plug 12 secured in the outer end of the cylinder. The space 14 in the cylinder is filled with a liquid or solid having a high thermal expansion, whilst the space 15 is filled with a wax or resin which will melt at substantially the same temperature as that at which the trip is intended to operate. The unit is held against a retaining collar 16 secured to the drum with the pin 5 flush with or slightly radially within the external surface of the drum by a spring 17. A clearance is provided between the pin 5 and the members 12, 16 to permit leakage therethrough of the wax or resin in the space 15 when the wax or resin melts and the piston 10 is moved outwardly by the expansion of the material in the space 14. When this occurs the pin 5 is projected outwardly into the path of the rod 6 so as to trip it as the drum rotates. On continued rotation of the drum the pin 5 contacts the belt 3 and is then depressed within the boss 9 against the action of the spring 17 so as to avoid damaging the belt. The pin 5 may be mounted on the lateral wall of the drum instead of on its cylindrical wall.
Patent GB-378066-A (GB)
Title: Improvements in a method and apparatus for the production of emulsions, especially of such from milk and fat or oil
IPC: B01F5/06
Filed: 1931-04-30
Abstract: <PICT:0378066/III/1> Emulsions, for example of a fat or oil such as butter in milk, are prepared by injecting the liquid or liquefied disperse phase into a body of the continuous phase flowing through a chamber 7, the injection appliance comprising means such as a conical valve 3, for example of chrome nickel steel, which spreads out the injected material into a conical atomized sheet.  The valve 3 is adjustable in relation to its conical seat 2 by a screw-threaded stem 4 and a hand-wheel 5, and the rim 6 of the seating may be helically grooved to impart a whirling motion to the injected material.  The continuous phase is admitted through a nozzle 9 which may be directed downwardly as shown or tangentially to the chamber surface.  The emulsion is drawn off through a pipe 10 including flow-control means. The chamber 7 is divided horizontally or obliquely into two parts separable for cleaning and may be provided with heating means and glass inspection openings.  In a modification the valve 3 is flat and engages a seating on a re-entrant portion of the chamber wall, the material being injected in the form of a flat atomized sheet at the centre of the chamber.
Patent GB-316353-A (GB)
Title: Improvements in and relating to surface coatings of ebonite, hard rubber or the like
IPC: B29C70/68
Filed: 1928-05-01
Abstract: 316,353. Menzel, H. r. W. May 1, 1928. Grant of Patent refused. Moulding indiarubber, hollow-ware, pipes and tubes.-A process for lining tubes, pans, &c. with ebonite, hard rubber, &c. consists in introducing a perforated hollow core covered wtih a continuous layer of the lining material, exhausting the air between the article and the core, and then inflating the material to transfer it to the inner surface of the article, on which it is subsequently vulcanized. The layer of material may be a calendered sheet with its edges joined or may be an extruded tube. In the apparatus shown in Fig. 1, the tube a to be lined is first treated with a layer of rubber solution and is mounted on carriages b running on rails d. The core k with the rubber sheet n is mounted at one end in a cap h and at the other end carries a pivoted roller d<1> which during passage of the tube over the core runs along the interior of the tube to prevent contact of the sheet n with the prepared surface. A second cap h<1> closes the other end of the tube a, both caps having airtight stuffing-box joints i, i<1>. During the assembling, the rubber sheet is retained on the core: by suction through a two-way valve m and when the core is in position suction is also applied to the space between the tube a and the core. Air is then admitted to the interior of the core causing the sheet n to be transferred to the interior of the tube a. After removal of the core the lined tube passes to the vulcanizing chamber which may be arranged in continuation of the rails d. A modified end-cap Fig. 3, comprises two hinged semi-circular sections h<1>, h<2>, locked together by a pivoted bolt, each section containing a rubber gasket s of channel-section engaging on one side the exterior of the core and on the other side the exterior of the tube to be lined. In lining a cylindrical pan, a cylindrical core corresponding to the shape of the pan 'is carried by a cover-plate which is secured to the flanged rim of the pan, the plate being provided with apertures communicating with the interior of the core and with the space between the core and the pan for connection to exhaust and supply pipes arranged as in Fig. 1.
Patent GB-505524-A (GB)
Title: Improvements in and relating to racing cars
IPC: B62D35/00
Filed: 1938-04-29
Abstract: 505,524. Vehicle bodies ;, brakes. PORSCHE, F. April 29, 1938, No. 12837. Convention date, May 7, 1937, [Class 108 (i)] [Also in Group XXXIV] In order to increase the pressure of the wheels of .a racing car on the ground, a vane 1, 2 of aerofoil section is arranged transversely of the car in such a position that while the car is in motion air pressures are produced which force the wheels of the car on the ground, the resultant downward force passing through a point in the plane enclosed between the points of wheel contact. The vane may also act as a brake. As shown, the vane comprises a fixed part 1 and a pivoted flap 2 and is mounted on streamlined vertical supports 5, 5<1> which, with the upper surface of the car body and underside of the vane, form a nozzle. The vane, which is bounded by end plates 4, 4<1> may, as a whole, be fixed or adjustable by the driver or automatically.
Patent GB-476540-A (GB)
Title: Improvements in or relating to mills for grinding pepper, salt, sugar, coffee and the like
IPC: A47J42/34
Filed: 1937-05-06
Abstract: 476,540. Pepper &c. mills. MANTELET & BOUCHER. May 6, 1937, No. 13008. Convention date, Aug. 18, 1936. [Class 59] A mill for grinding pepper, salt, sugar, &c. comprises a receptacle 1, a cover 7 and a removable member 5 forming with the cover a pair of crushing members. The member 5 is provided with lugs 4 which enter recesses 3 in the top of the receptacle 1 and with helical surfaces 6 the upper edges of which are flush with the top of the receptacle. The cover 7, which is revolved to grind the material when the receptacle is turned upside down, may be turned over the external flange 2 of the receptacle or may have split sides to spring over a projecting ring. In a modification the cover is imperforate and is provided with radial slots, spring strips on the sides of the cover being adapted to engage the top flange of the receptacle.
Patent GB-1303666-A (GB)
IPC: D01H1/11
Filed: 1970-03-18
Abstract: 1303666 False-twisting rollers O-B RASMUSSEN 18 March 1970 [20 March 1969 (2) 11 Aug 1969] 13044/70 Headings DID and D1F Yarn is false-twisted whilst passing between a pair of rollers by frictional engagement with elements 2, 3, 4, 5 of the rollers which move in opposite directions transversely to the yarn whilst in contact therewith, or with endless rubber bands driven by such rollers. The elements slide longitudinally of the rollers, as they are rotated by a driven core 1, as pins 7 on each element follow a track 8 in a fixed ring 6 surrounding a roller end. Only one roller (41) need have sliding elements (Fig. 7) if both are inclined to the direction of yarn travel. In Fig. 8, strips of film 51 pass between pairs of pre-heating rollers 52 and 53, from which they emerge at an angle and are false-twisted by a pair of rollers 54 before passing between stretching rollers 55. The angled withdrawal and false-twisting of the film is stated to reduce the risk of breakage during stretching, which may be a preparatory step to fibrillation, which can also be performed by false-twisting.
Patent GB-540401-A (GB)
Title: Improvements in systems for the automatic control of conditions such as temperature and pressure in electrically heated apparatus
IPC: G05D23/275
Filed: 1940-08-15
Abstract: 540,401. Automatic control systems for electric heating devices. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 15, 1940, No. 13050. Convention date, Aug. 18, 1939. [Class 38 (iv)]  [Also in Group XXXVIII] Temperature fluid pressure or other functions of an electrically heated furnace, boiler &c. 10 is controlled by a saturable core reactor of which the saturating winding 15 is fed through a space discharge device 16 which is controlled by a Wheatstone bridge potentiometer 26, 30 comprising a resistance varied by means 25 responsive to the quantity controlled, a transformer 34 with one adjustable connection 49 to determine the value of the controlled variable and another 50 on a resistance 33 to determine the sensitivity of the control varies the grid voltage of an arc discharge tube 22 so that the slightly pulsating potential of a condenser 20 depends on the variable. The condenser 20 controls the grid voltage of the discharge device 16 and thereby the saturating current, which is smoothed by the shunt rectifier 63. The potential across the heating resistance 11 is applied to a part of a potentiometer 43 included between adjustable tappings forming a second sensitivity control and supplying a transformer 45 which applies a differential pulsating potential to a second condenser 21 in series with the condenser 20. Specification 407,073 is referred to. The temperature &c. differential of the furnace &c. is reducible to an adjustable extent by feeding a condenser 37 in the grid circuit of the tube 22 with a rectified voltage proportional to the potential across the heating resistance; a resistance 59 is arranged to give a time delay correponding to the time required for restoration of furnace temperature. The connections for the transformer may be as shown in Fig. 2.
Patent GB-300926-A (GB)
Title: Improvements in or relating to pocket turkish pipe
IPC: A24F1/30
Filed: 1927-05-16
Abstract: 300,926. Alland, M. May 16, 1927. Tobacco pipes and cigar and cigarette holders.-A water-receptacle through which the smoke has to pass is mounted in unitary relation with the pipe &c. A plug 8 in the lower end of the bowl 2, is formed with an internal flange 11 from which depends a tube 10 into the water receptacle 22 attached to the lower end of the belt 19. The plug 8 is also threaded for engagement with a downwardly tapering cap 14 having an undercut flange into which is snapped a perforated disc 18. A rod 18a extends from the disc 18 through and beyond the tube 10. The disc may thereby be readily released for cleaning purposes. A lateral opening 25 allows the smoke to pass into the stem 3. In a modification the plug 8 is tapered, and the water-receptacle screws on a liner separate from the plug and fixed in the lower end of the bowl, or directly on to the bowl itself.