baber/WOPTO huggingface dataset:
Patent GB-213477-A (GB)
Title: Improvements in sanitary slippers
IPC: A43B5/08
Filed: 1923-06-26
Abstract: 213,477. Henderson, Q. B. June 26, 1923. Slippers.-A sanitary slipper has a toe pocket w i t h straight converging sides and is of inelastic material creased longitudinally so as to be elastic laterally. Preferably the slipper is of tough crepe paper, with the crinkles running longitudinally.
Patent GB-266974-A (GB)
Title: Improvements in or relating to bed-rests
IPC: A47C20/02
Filed: 1926-07-01
Abstract: 266,974. Rogers, W. P. July 1, 1926. Bed-rests.-A "kneepillow " or bed-rest b, of the kind connected to the head of the bedstead by flexible and adjustable means j, is prevented from movement by the provision of an additional flexible member e, arranged below the patient and in a position between the rest b and the head of the bedstead. The member e may have at one end a hem f to receive a rod i, and at its other end may be connected to the bottom of a back-rest l.
Patent GB-467533-A (GB)
Title: Improvements in railroad crossings
IPC: E01B7/28
Filed: 1936-06-13
Abstract: 467,533. Railway crossings. GRAND, J. F. E., and GRAND, R. L. June 13, 1936, No. 16574. Convention date, June 19, 193.5. [Class 104 (i)] A railway crossing comprises four rails a, b, c, d, of which the outer rail a is bent at the points x, e, e<1>, the guard rail b<1> is bent at X, the rail c is cut at l, l<1> to form the points g, g, and the rail d is cut at k, k<1> to form the counterpoints j, j. Between the points g, g the head of the rail c is removed, and the rail is bent at the points c<1> ... c<4>. The rails are all united to form an integral unit.
Patent GB-354896-A (GB)
Title: Improvements in or relating to the circulation of liquids in absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1930-05-31
Abstract: 354,896. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm.) May 31, 1930, No. 16853. [Class 29.] Absorption systems.-In a liquid circulating system for inert gas machines, of the kind in which a conduit is periodically sealed by liquid to create an excess pressure for effecting the circulation, a separate supply conduit for the sealing liquid extending from the same vessel as the pressure conduit is provided. A diagrammatic view of the circulating system is shown in Fig. 1, and the disposition with respect to the generator and absorber of a machine in Fig. 3. The generator 10 and absorber 13, Fig. I, are connected by a weak liquor pipe 25 and a strong liquor pipe 27. An inverted U-shaped pipe 16 in the generator has one end formed as a funnel 17 depending into the liquid and the other extending into a " pumping " chamber 15. A pipe 18 extends from the bottom of the generator to the end of the pipe 16 located below the normal liquid level in the pumping chamber, and a pipe 19 extends from the pipe 16 to the liquid seal or valve pipe 29, 20 and to a liquid supply pipe 22 for the seal formed as a coil 23. When heat is applied the gas entering the funnel 17 and pipe 16 forces liquid downwards in pipes 29, 22 and 18, and upwards in the annular space 30 of the pumping chamber until the liquid overflows into a vessel 24 and so by pipe 25 to the absorber. Eventually the pressure drives liquid out of the seal pipe 20 and the pressures are then equalized to allow liquid to flow up the pipe 18 to replenish the pumping chamber and up the pipe 22 to re-establish the seal. Preferably the conduit between the coil 23 and the limb 29 is slightly inclined upwards towards the end of the coil and is of larger bore, to ensure more certain sealing. In the arrangement shown in Fig. 3, the pumping chamber 15 and seal supply pipe 22 are outside the generator, and the pressure pipe 16 connects with a dome 33 in the pumping chamber. The weak liquor rises from chamber 15 to vessel 24 and flows through interchanger 25 to absorber 13, and the strong liquor returns through pipe 27 to the top of the liquor space of the generator. The gas entering funnel 17 is mainly solution vapour, and if desired the pipe 20 may discharge into the absorber. The descending limb 29 is of wide bore, and in order to form the seal by a full stream of liquid a dam may be placed at the junction of the part 31 of the coil 23 with the pipe 19. Another arrangement is described in which the funnel 17 and the weak and strong liquor pipes are situated close together at the bottom of the generator.
Patent GB-470433-A (GB)
Title: Improvements in or relating to espagnolette fastenings
IPC: E05C9/04
Filed: 1936-06-17
Abstract: 470,433. Door &c. fastenings. RING, J. M. R., and WIDEN, P. G. June 17, 1936, No. 16874. [Class 44] In a fastening for doors and windows having vertical bolts each bolt has a laterally off-set arm adapted to engage behind a fixed plate as the bolt is moved towards shot position, the co-operatiiig, faces of the tongue and plate being inclined so that the window &c. is tightened against its seat. The ends of the bolts, which co-operate with keepers in the usual way, are also bevelled so as to exert a tightening action as the bolts are shot. As applied to double doors stop devices may be provided to arrest the bolt movement when the laterally off-set arms have become disengaged but before the bolts have been completely disengaged, so that, in known manner, one door may be released but release of the other door cannot be completed until the first door has been opened. Figs. 1, 2 show lower and upper bolts 2a, 2b, connected by links 23 with a pivoted lever 21 so that the bolts are simultaneously moved in opposite directions.. The lower bolt is operated by hand-lever 7 and link 9, lever 7 being trough-sectioned to embrace the link when depressed. The ends of the bolts are bevelled to press the door against its frame when fastened. The bolts have off-set arms 11 adapted to engage behind catch-plates 16 on the other door as the bolts are shot, the contacting edges of the parts 11, 16 being bevelled to dram the doors into close contact. Stop pieces 15 may also be provided on the other door and co-operating with arms 11 or with additional members placed elsewhere on the bolts, to arrest withdrawal of the bolts when the parts 15 are disengaged but before the bolts have been completely withdrawn, completion of boltwithdrawal necessitating opening of the released door to remove stops 15 from the paths of arms 11. In the form shown the bolts are let into grooves in the door, but they may be mounted on the face of the door, and Figs. 13, 14 show guiding means for the bolts comprising a fixing screw 3a the head of which has projections adapted to be snapped into recesses 19 in a U-shaped guide 3 which may then be secured by a pin 20. Modified stop arrangements are described in one of which a horizontally sliding plunger is moved by the cam action of a pin on the bolt engaging an inclined slot in the plunger, the end of the plunger abutting against the opposed door edge to arrest bolt movement until said door has been opened, and in another the end of a pivoted lever, actuated when the bolts are moved, abuts against the opposed door edge. In the latter arrangement the connecting lever between the bolts, such as 21, may be utilized, one end of the lever being extended so as to project beyond the edge of the door during part of its swinging movement. A modification is also described in which a single bolt is used, extending the height of the door, and having cranked ends which engage behind hooked keepers.
Patent GB-700126-A (GB)
Title: Improvements in self priming centrifugal pumps
IPC: F04D9/04
Filed: 1951-07-17
Abstract: 700,126. Centrifugal pumps. HENDRY, J. July 17, 1951; No. 16890/51. Class 110 (1) A priming pump B removes gases from a float chamber D which is connected-by orifices D1 to the suction branch C of the centrifugal pump A. When priming is complete, float F lifts a valve H until a parallel portion H3 has entered a bore H4, thereby disconnecting the suction of pump B from the float chamber D. Further upward movement of the valve H causes an extension H2 to bear against a a valve K and unseat it, whereby the suction of pump B is connected, by way of a filter M, to atmosphere. Pump B then runs idle. A baffle C1 keeps the water level above the inner diameter A3 of the impeller blades. The delivery is provided with a non- return valve A1.
Patent GB-969321-A (GB)
Title: Article dispensing machines
Inventor: DEES HORACE
IPC: G07F11/36
Filed: 1959-05-19
Abstract: 969,321. Coin-freed vending machines. FISHER & LUDLOW Ltd Aug. 19, 1960 [May 19,1959], No.16930/59. Heading G4V. An article dispensing machine comprises a conveyer 1 arranged to deliver purchased articles one by one to a drawer 9, means for preventing operation of the conveyer when the drawer is open, latch means 22 for holding the drawer in closed position and means responsive to the operation of the conveyer and the delivery of an article into the drawer to render the latch means inoperative so as to enable a purchaser to obtain access to the drawer. The conveyer 1 comprises a fixed helical shoot encircling a six-finned rotor 1 which is indexed by an electric motor 12 and gear box 13 to slide the articles down the shoot or control their descent under gravity and deliver them to the drawer 9. The drawer 9 is hinged at 20 and has a roof flap 18 which is hinged at 23 and normally held in the raised position by a spring 19. The latch 22 mounted on a pivot 29 normally engages the pivot 23 to prevent the drawer being pulled outwards and is released by a falling article depressing the flap and causing an extension 32 to engage a pin 33 on the latch. When the motor 12 is energized upon the insertion of suitable coins a six-armed star wheel 24 on the shaft 10 of the rotor 1 axially displaces, against a spring 28, a bobbin 25 beyond a position where a switch 27 is actuated to cut out the motor 12 and thus stop the rotor after it has moved through one-sixth of a revolution and discharged an article into the drawer. The bobbin 25 is actually mounted on the rear edge of the drawer so that when, with the latch 22 released, the drawer is pulled open to withdraw the article, the bobbin 25 is swung clear of the star wheel and is free to be returned by the spring 28 in readiness to take up its correct initial position in relation to the star wheel when the drawer is again closed. The front of the drawer has a glazed window so that the operator can see when an article has been delivered to the drawer; the delivered article in the drawer holds down the flap 18 and further operation of the machine is prevented by the opened switch 27. The flap 18 is of arcuate shape in side elevation so that it blocks the opening through which it is swung and prevents the loss of cooled or heating air from within the cabinet. Several vending units may be mounted in one cabinet and each may be readily removed without interfering with the others; if articles of the same price are contained in the two units a single coin mechanism may be provided for the two units.
Patent GB-875140-A (GB)
Title: A process and apparatus for fragmenting resinous material
IPC: B29B9/04
Filed: 1960-05-13
Abstract: 875,140. Pelleting synthetic resins. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 13, 1960 [May 16, 1959], No. 16964/60. Class 87(2). A process for pelleting synthetic resin comprises supplying the material in a liquid state on to a moving endless belt 1, gradually cooling the material on the belt to convert it to a semi-solid state, impressing intersecting grooves on the material by means of a roller 18, the grooves having a depth less than the thickness of the material, cooling the material until it is hard and finally breaking the material at the grooves to form pellets. The material is forced by a pressure from a steam heated container 11 through a filter 13 and adjustable nozzle 15 on to the belt 1 and is progressively cooled on the belt by water sprays 5-8 acting on the underside of the belt and by a counter flow of air through a chamber 10. The roller 18 is adjustable for depth of indentation and also longitudinally to impress where the material has the correct texture. The belt may be of steel and is supported under the roller 18. The material may be broken by a disintegrator 25 which may be a pair of rollers. The belt 1 may have raised side portions to contain the material, Fig. 4 (not shown).
Patent GB-226844-A (GB)
Title: Improvements in or relating to refrigerating systems
IPC: F25B1/04
Filed: 1923-06-30
Abstract: 226,844. Rushen, P. C., (Carrier Engineering Corporation). June 30, 1923. Vacuum machines.-Comprises the combination of a centrifugal exhauster, a film evaporator of the type in which some liquid refrigerant is always present, means for regulating the refrigerating capacity by varying the rate of flow of one of the heat carriers, and the use of a refrigerant having a specific vapour density several times greater than air and a boiling point of 0‹ C. between 70 and 100 mm. pressure, for example carbon tetrachloride, ethyl chloride, or sulphur dioxide. The centrifugal exhauster C operates at constant speed irrespective of variations in the load and maintains a small difference between the pressures in the evaporator A and condenser B, both of these pressures being less than one atmosphere. The exhauster comprises four stages, water cooling-tubes 24 being provided between the second and third stages and between the third and fourth stages. The condenser is provided with an external jacket I and with internal cooling pipes 24a and the condensed refrigerant passes through a float-valve 33 to the bottom E of the evaporator chamber A. A pump F, driven from the shaft of the exhauster C, raises the liquid refrigerant through a tube 9 to an upper header 7 from which the refrigerant flows down as' a film over the external surfaces of pipes 3, through which passes the fluid to be cooled, the latter entering a semi-circular header 2 by a pipe 4, and, after traversing the pipes 3 and upper headers 1, being discharged by the pipe 6. A thermostatically-operated valve 37 is provided in the tube 9, the thermostat 36 being arranged in the path of the cooled fluid so that, when the temperature of the latter falls below a - certain level, the valve 37 is closed and evaporation prevented until the temperature rises. Alternatively, a thermostatically-operated valve may be arranged in the discharge pipe of the water from the condenser, the thermostat in this case being arranged in the condenser so that on shutting off the water to the condenser a higher temperature of evaporation results in the evaporator.
Patent GB-1284490-A (GB)
Title: Alumina-tungsten cermet and process for making it
IPC: C04B35/10
Filed: 1970-04-09
Abstract: 1284490 Tungsten-alumina cermets W R GRACE & CO 9 April 1970 [8 July 1969] 17029/70 Heading C1J A tungsten-alumina cermet comprises a pure alpha alumina having a grain size less than 5 Á and containing 0À05-0À30 wt. per cent of a grain growth inhibitor and 2À5 to 25 wt. per cent of tungsten having a particle size less than 1 Á and distributed at the grain boundaries of the alumina. The cermets can be prepared from an alpha alumina powder made by the fluid energy milling of an aqueous slurry of hydrous alumina precipitate by impregnating with a solution of ammonium or yttrium metatungstate, drying the impregnated alumina, reducing the tungstate to the metal in the presence of the grain growth inhibitor by treatment with hydrogen having a dew point of at least 25‹ C. at 900- 1050‹ C. and then sintering at 900-1050‹ C. The grain growth inhibitor can be incorporated in the alumina at any time before the reduction with hydrogen, e.g. by impregnating the slurry of hydrous alumina or the dried alumina powder with magnesium nitrate solution. The powder containing the tungsten can be dry pressed before sintering.
Patent GB-1149845-A (GB)
Title: Improvements in or relating to photoelectric tracing control systems
IPC: B23Q35/40
Filed: 1966-04-19
Abstract: 1,149,845. Photo-electric line followers. SENECA FALLS MACHINE CO. April 19, 1966 [April 19, 1965], No.17182/66. Heading G1A. [Also in Division G3] A photo-electric line or edge follower comprises a rotary optical scanner generating control signals in response to its field of view crossing the line or edge, means driven by the scanner to generate a signal of frequency representative of the rotary scanner speed and gating means to which are applied the frequency signal and the control signals to produce a signal for driving the scanner along the line or edge. The line or edge is scanned by a rotating scanning aperture 21 driven by an induction motor 33. The pulse output from the photo-multiplier 50 is fed via a selector switch 57 for light on dark or dark on light lines and a shaping trigger circuit 60 to a first flip-flop 62. The reset time of flip-flop 62 is adjusted so that it is sensitive to the pulses generated when the line is scanned in a forward direction, but not in a backward direction. Setting of flip-flop 62 also sets flip-flop 67, which resets after about 180 degrees of the scanner's rotation. Flip-flop 67 produces complementary squarewave signals on leads 72 and 73 the phase of which depends upon the point in the scanning cycle when the line is detected. A generator 33 produces quadrature signals synchronized with the scanner rotation. These signals are applied in positive and negative polarity to diode switches 77 and 80, where they are gated by the squarewaves from flip-flop 67 to give signals which after smoothing by filters 85 comprise the drive to X and Y servomotors. If A.C. servomotors are used, modulators 83, 84 are provided to produce the A.C. drive signals. The invention may be used to control milling, routing, sewing, flame cutting and welding machinery.
Patent GB-717212-A (GB)
Title: Improvements relating to anaesthetics
IPC: C07D295/14
Filed: 1952-07-10
Abstract: Anaesthetics of the formula <FORM:0717212/IV (b)/1> where R1 and R3 are alkyl or alkoxy groups, R2 is hydrogen or an alkyl or alkoxy group, R4 is a hydrocarbon chain of up to 6 carbon atoms, and R5 and R6 are hydrogen or alkyl groups which, with the nitrogen, may form a heterocyclic ring, are prepared by reacting an amine of the formula <FORM:0717212/IV (b)/2> with a haloformic acid ester of the formula <FORM:0717212/IV (b)/3> X1 and X2 being halogen, to produce a compound having the formula <FORM:0717212/IV (b)/4> and reacting this compound, first at room temperature and then with heating, with an amine of the formula <FORM:0717212/IV (b)/5> In the examples (1) 2,6-xylidine is reacted with cooling with chloroformic acid-b -chloroethyl ester in benzene and, after separating the xylidine hydrochloride formed, the product is reacted with diethylamine with final boiling under reflux for 4-6 hours to produce 2,6-dimethyl carbanilic acid diethylaminoethyl ester; (2) mesidine is reacted with chloroformic acid-b -chloroethyl ester and the carbanilic acid chloroalkanol ester formed is reacted with piperidine to produce 2,4,6-trimethyl carbanilic acid - b  - piperidino ethyl ester. Specification 717,214 is referred to.
Patent GB-1167047-A (GB)
Title: Two-Ply Knitted Fabric.
IPC: D04B1/20
Filed: 1967-04-17
Abstract: 1,167,047. Knitted fabrics. KUNSTSEIDENA.G. 17 April, 1967 [29 April, 1966], No. 17471/67. Heading D1K. A two-ply elastic knitted fabric comprises a plurality of loops of non-elastic spun yarn produced from a natural and/or artificial threads or fibres and a crimped yarn lying adjacent to the non-elastic yarn and having a crimping contraction of from 2-50%. the sinking depth of a separate loop of the crimped yarn being from 5 to 25% greater than that of the non-elastic yarn. The non- elastic yarn may be cotton, staple rayon or wool and the crimped yarn may be a polyester or polyamide.
Patent GB-780777-A (GB)
Title: Production and use of alkylation catalysts
IPC: B01J27/06
Filed: 1955-06-17
Abstract: Metallic aluminium is reacted, e.g. at 65-75 DEG  C., with a hydrogen halide in a hydrocarbon medium, preferably benzene or a saturated acyclic or alicyclic C5-C8 hydrocarbon, and the halide is separated from the hydrocarbon.  The halide is then reacted with an olefine and an aromatic hydrocarbon, preferably at 55-75 DEG  C., to form the organo-aluminium halide complex for the Friedel-Crafts reaction.  A small amount of hydrogen halide promoter may be introduced with the olefine.ALSO:In a Friedel-Crafts reaction for the alkylation of aromatic hydrocarbons, the catalyst is prepared by reacting aluminium with hydrogen halide in a hydrocarbon medium, separating the halide and reacting the halide with an aromatic hydrocarbon and an olefin to form an organo-aluminium halide complex.
Patent GB-834637-A (GB)
Title: Improvements in or relating to a car coupler
IPC: B61G3/04
Filed: 1958-06-02
Abstract: 834,637. Janney couplings. NATIONAL MALLEABLE & STEEL CASTINGS CO. June 2, 1958 [May 31, 1957], No. 17592/58. Class 103(5) A Janney type coupler comprising a head 10 with spaced top and bottom ears 14 having bosses 16, and a knuckle 12 pivotally mounted on a pin 18 between the bosses and fitting therebetween, has openings 20 in the ears and bosses made larger than the pin 18 and preferably elongated longitudinally of the coupler as shown in Fig. 3, and shoulders 39 on the top and bottom of the knuckle partially surrounding the bosses and providing buffing and draft surfaces 42, 40 and surfaces 28, 30 for abutting surfaces 26, 27 when in the closed and open position respectively, the shoulders being recessed at 46 to prevent frictional engagement taking place between the shoulders and bosses during opening movement of the knuckle. When the knuckle thrower 50 is operated to open the coupling the knuckle 12 is first shifted slightly as shown in Fig. 4 and then rotated until the surfaces 27, 30 abut, but the recessed portion 46 does not frictionally engage the boss until the very end of this rotational movement. In prior art couplings the bosses were reduced as at C in Fig. 3 to prevent excess friction, but with the provision of recesses 46 this reduction in strength is not now necessary.
Patent GB-313493-A (GB)
Title: Process for the manufacture of indigoid vat dyestuffs
IPC: C09B7/06
Filed: 1929-06-07
Abstract: 313,493. I. G. Farbenindustrie Akt.- Ges. June 12, 1928, [Convention date]. Thioindigo dyestuffs of the thionaphthene-indol series are produced by coupling a 5-halogen-3- oxythionaphthene with an active a-derivative of 5 : 7-dihalogenated isatin. In an example, 5 :7- dibromisatin, suspended in chlorbenzene, is converted into the alpha-chloride by means of phosphorus pentachloride, and is then condensed with 5-chlor-3-hydroxythionaphthene. The following components are also specified : 5 : 7-dic.hlorisatin and 5-brom-3-oxythionaphthene 5-Halogen-3-oxyhionaphthenes. - Starting for example, from chlorbenzene, p-chlorbenzenesulphochloride is produced by treatment with chlorsulphonic acid. By reduction, p-chlorphenylmercaptan is obtained, which bv coupling with chloracetic acid gives p-chlorphenyl-thioglycollic acid. The latter is converted into the acid chloride, and the ring closed by means of aluminium chloride to give 5-chlor-3-oxythionaphthene. The 5-brom-3-oxythionaphthene is similarly obtained. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the condensation of 5-halogenoxythionaphthenes with any halogenisatin a-derivative. 5-Brom- and 5-chlor-isatin-achlorides and halogenisatinanilides are mentioned, and also the use of acetic anhydride as the reaction medium. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 6490/07 and 11609/07.
Patent GB-612977-A (GB)
Title: Air brake for use, in particular, in dynamometers
IPC: G01L3/20
Filed: 1946-06-12
Abstract: 612,977. Vane governors. LOIRET, E. X. June 12, 1946, Nos. 17626 and 17627. Convention dates, March 27, 1945, and April 7, 1945. [Class 57] [Also in Groups XIX and XXXIV] In an air brake (see Group XXXIV) comprising blades mounted at the ends of a rod which may be rotated by a pinion 8<1> to vary their incidence, the pinion is actuated through a rack 9<1> by means of pivoted governor weights 17, 18.