baber/WOPTO huggingface dataset:
Patent GB-904498-A (GB)
Title: Heat exchanger and method of making same
Inventor: HIGHAM EWINS F
IPC: B21D53/02
Filed: 1960-02-08
Abstract: 904,498. Making heat-exchangers; soldering. BORG-WARNER CORPORATION. Feb. 8, 1960, No. 4433/60. Classes 83 (2) and 83 (4). [Also in Group XIII] In the making of a heat-exchanger consisting of tubes 44 extending between header tanks, each of which comprises a one-piece body section 19 having a flat base formed with flanged openings 40 therein to receive the tubes, a method of construction comprises the steps of providing in a longitudinally-extending zone 39 of a strip of sheet copper, brass, aluminium or other metal (i.e. the sheet used to form the header), a coating of a low-melting point metal such as a tin or lead solder or zinc, forming in said strip one or more of the flanged openings 40 having said metal coatings on the inner surface thereof, and dimensioned snugly to receive a tube, and heating the assembly (e.g. in an oven or by means of a torch or by passage across fixed flames) to thus melt the coatings and effect a bond between the strip and the tube or tubes. The coating may comprise a strip of foil 38 rolled into the body of the parent strip 19 as shown in Fig. 6 or the strip 38 may be applied so that it protrudes beyond the strip 19. In the form shown, each of the tubes 44 is also provided with a coating 56 of the low-melting point metal. Recesses 50, 52 are formed in the base zone to provide reservoirs for excess solder and to impart rigidity. In forming the header the body section strip 19 is bent to U-shape with flanged edges formed before or after bending, and the limbs of the U-section are then bent so that the flanges 30, 32 can be welded together. The body section is finally closed by soldered or welded-in end plates 34.
Patent GB-230612-A (GB)
Title: Improvements in and relating to heat transmission apparatus
IPC: F28D7/10
Filed: 1924-02-21
Abstract: 230,612. Wood, T. E. Feb. 21, 1924. Plate apparatus.-A heat-exchanger comprises a series of concentric tubes T<1> of any suitable shape, the annular spaces between which are alternately closed at each end by welded rings T<2>, T<3> forming chambers T to which one fluid is admitted, while the remaining annular spaces C are open from end to end either for the free passage of the second fluid or for the entrance of a liquid in which the apparatus is immersed. The concentric tubes may be corrugated to provide an increased surface, and are preferably distanced apart by stays B of angular or circular cross-section. The fluid is admitted to and drained away from the chambers T by pipes F, D respectively, having branches which pass through apertures in the rings T<2>, T<3>. Reference has been directed by the Comptroller to Specifications 983/77, 2934/78, and 15/82.
Patent GB-667331-A (GB)
Title: Improvements in or relating to a system of testing a telecommunication system
IPC: H04B3/46
Filed: 1950-02-21
Abstract: 667,331. Determining condition of telephone lines. SOC. ANON. DE TELECOMMUNICATIONS. Feb. 21, 1950 [March 25, 1949; Jan. 3, 1950], No. 4484/50. Class 37. Relates to two-way transmission systems in which signals in one direction along line 1 occupy one wave-band and signals in the other direction along line 2 occupy another waveband; according to the invention, at test frequency lying between the two wave-bands is transmitted from 4 and passes over a tuned coupling 5 for transmission back to 9 where its amplitude is compared with that of the original signal to determine whether the lines and repeaters are satisfactory. The equipments 4, 9, may be switched so as to test a plurality of lines, Fig. 3 (not shown). If equipments 4, 9 are available at a repeater, by applying them to the input and output, the gain may be measured. An equipment 9 at any repeater may be used to indicate transmission level.
Patent GB-624670-A (GB)
Title: A control system for an electric motor operating the falls of a ship's boat
IPC: H02P7/292
Filed: 1947-02-17
Abstract: 624,670. Control of D.C. motors. TAYLOR, H. G. Feb. 17, 1947, No. 4486. [Class 38(iii)] A control system for an electric motor operating the falls of a ship's boat comprises means for retarding the motor as the boat approaches the davits, said means being effective only for a short time interval at the end of which the motor automatically returns to full speed, and the motor cannot be retarded again until another short time interval has elapsed, unless a main switch is opened to de-energize the motor. The object is to prevent overheating of series resistors included in the motor circuit which retard the motor as the boat approaches the davits, and which may be left in circuit, through carelessness on the part of the attendant, whilst the davits are being swung inboard. To start hoisting, a switch S' is actuated to energize a selenoid L' which closes main contacts C<SP>1</SP>, holding contacts S<SP>2</SP>, and timedelayed contacts A<SP>1</SP>. Initially the motor M is connected in series with resistors R' and R<SP>2</SP>, but, when the contact A<SP>1</SP> closes, a solenoid L<SP>2</SP> is energized to close contacts C<SP>2</SP> which short-circuit resistor R<SP>1</SP>. Closure of contacts C<SP>2</SP> closes contacts A<SP>2</SP> after a time delay to energize a solenoid L<SP>8</SP> which closes contacts C<SP>9</SP> and short-circuits resistors R' and R<SP>2</SP> for full speed motor operation. Upon closure of contacts C<SP>3</SP>, the tacts A<SP>3</SP> open. When the boat approaches the davits, a switch S<SP>4</SP> is opened. The contacts C<SP>2</SP> and C<SP>3</SP> open to re-insert resistors R<SP>1</SP> and R<SP>2</SP> and retard the motor. When the contacts C 3  open, the contacts A<SP>9</SP> close through a time-delay device and the contacts C<SP>2</SP> are re-closed to re-close the contacts C' after a time interval. In a modification only one step of control resistance is provided. A stop switch may be operated manually, or automatically when the davits reach their inboard position. The switch S<SP>4</SP> may be provided with trip gear which automatically operates the switch when the boat approaches the davits.-
Patent GB-382831-A (GB)
Title: Method of and means for operating automatically controlled die-casting apparatus
IPC: B22D17/32
Filed: 1932-02-15
Abstract: 382,831. Casting-machines. ELEKTRONMETALL GES., Cannstatt, Stuttgart, Germany. Feb. 15, 1932, No. 4502. Convention date, Feb. 25, 1931. [Class 83 (i).] An electromagnetic clutch, particularly for driving the control shaft of a die-casting machine, is deenergized for a predetermined period by causing the driven member to rotate a pointer b, connected electrically by its pivot p to the clutch, so that it makes sliding contact with a broken ring c connected to the electric supply s. When the pointer reaches the gap c<1> the clutch ceases to drive but a lever e, which is also' connected electrically to the clutch and is normally carried around by a projection e<2> of the lever, is then advanced alone, through means not shown, by clockwork set in motion by electric current from the pointer b through contacts b<2>, d<2>. When the lever e reaches an adjustable lever f, insulated from the parts b, e but in electric contact with the ring c, the clutch is energized and the pointer b again set in motion picking up the lever e when it reaches it. The device enables a casting machine to be automatically stopped for a solidification period adjustable to suit castings of varying size &c.
Patent GB-268306-A (GB)
Title: Apparatus for determining the composition of copper and zinc alloys
IPC: G01N5/04
Filed: 1927-02-17
Abstract: 268,306. Polanyi, M., and Bogdandy, S. von. March 24, 1926, [Convention date]. Testing and estimating. -An apparatus for determining the composition of zinc-copper alloys consists of a vessel for the reception of the finely-divided alloy which is adapted to be heated and evacuated, the copper being weighed after the zinc has been volatized. Means are provided for condensing the zinc. The metal, carried in a refractory glass or other container g, is introduced into a vessel c of refractory material and having a reduced portion b which is surrounded by an electric or other heater a. The vessel c is connected by a metal sleeve d, constructed to act as a cooling jacket, t'o a pipe e by which the vessel c is evacuated. Condensation of the zinc occurs mostly around the sleeve d and, if it be desired to recover the zinc quantitatively, a plug of asbestos &c. is introduced at the point h.
Patent GB-104938-A (GB)
Title: Improved Device for Preventing the Fraudulent Reusing of Bottles.
Inventor: ALSOP BERTHA SINQUETTE
IPC: B65D49/06
Filed: 1916-03-30
Abstract: 104,938. Alsop, B. S. March 30, 1916. Bottles, non-refillable.-A device for preventing the fraudulent re-use of bottles comprises a valve normally engaging a seat in the outlet passage of the bottle neck and displaceable by pressure into the outlet passage, a guard above the valve, and means operating on displacement of the valve into the passage to prevent its re-engagement with the valve-seat. The valve mechanism is carried by a tubular member 15, Figs. 1 and 2, which is secured in the bottle neck 11 by a transverse locking-pin 12 engaging an internal recess 18 in the member and projecting through a longitudinal slot 19. On inserting the member 15 into the bottle-neck, the projecting portion of the pin 12 moves back in the slot until the member is inserted far enough for the pin to engage beneath an internal shoulder 10 on the bottle neck. A cork strip 20 or other spring may be provided for yieldingly holding the pin down in the slot. The locking-pin 12 may be dispensed with when a securing-ring 48 is employed. The valve member consists of a hard glass-like body 25, a flat flexible valve 26 of sharkskin &c., a cork-like washer 27, and a float 28, all secured together by a projecting pin 29 .on the body 25. A tubular weight or guard 32 with top and side openings 31, 34 is provided above the valve. On forcing liquid into the bottle, the flexible valve disk 26 is forced past its seat 17 down into the outlet passage 16. A guard 35 prevents access to the valve and weight. Means for preventing re-engagement of the displaced valve with its seat consists of a loose rod 40 which drops out of a pocket in the underside of the top of the movable guard 32 when the valve is displaced. Or an upstanding stud 43, Fig. 5, on top of the valve may normally engage in a passage 44 in the top of the movable guard 32. The stud 43 may be the extended end of the securing-pin 45. In a modification, the tubular member 15, Fig. 6, is secured by an annular ring 50 on top of the upper edge of the bottle neck 51, and an annular member 52 forms the valve-seat. The upper end of the cork float 28' engages the valve-seat when the valve is displaced and prevents it from being forced down into the bottle. When displaced, the valve disk 26' engages beneath the lower edge of the depending portion 53 of the member 52.
Patent GB-1385064-A (GB)
Title: Dolls and like figures
IPC: A63H33/04
Filed: 1972-02-01
Abstract: 1385064 Dolls &c WITEFI ANSTALT 1 Feb 1972 [3 Feb 1971] 4746/72 Heading A6S [Also in Division G5] A doll marionette, display figure, &c has a body in which rotatable members are mounted and are partly exposed to view, the rotatable members having different visual effects on each of their sections which are selectively exposed. In one form, a doll, &c having a body 1, Figs. 1, 2, has a sphere 3 journalled about a horizontal axis a with four different faces depicted upon its four segments 3a, 3b, &c e.g. of a man, woman, boy and girl; a sphere 4 journalled about a horizontal axis b and having representations of different bodies, e.g. of a man's body in Austrian dress; and a frusto-conical member 5, journalled about a vertical axis c and having representations of pairs of legs &c. The rotatable members 3, 4, 5 may be turned by hand to expose different sections through windows in the body 1; alternatively they may be turned by battery powered motors 31, &c under automatic and/or remote control. Two segments 9, 10, having pictures of hair, a nectie, &c are also journalled on the axis a; eye holes 35 may be illumined by lamps 36. The various journals may be provided by push-in pins 11, press studs, &c. Detents 19, &c hold the rotatable members 3, &c in selected positions. Additional members 23, 24 representing arms and a beard, &c are secured externally of the body. A separate member 26 forming a base for hair is mounted on the top of the body; a noze 13 is detachably secured by adhesive, magnetizm, &c to the face. In another embodiment, Figs. 3, 4, two cylinders 3, 4 are journalled in the body 1. The upper rotatable cylinder 3 has slits 17a for a pair of rotatable eye members 18a journalled within it. A spring 41 may connect the upper rotatable cylinder 3 to the body 1. Sound reproducing apparatus 42, &c is carried in the body. A motor 40, Fig. 3, may drive an eccentric mass in the body 1 to cause vibratory, &c movement; alternatively the body may have a weighted base 16, Fig. 4, so that the figure is self-righting. The power for the motor, &c may be provided by batteries or by connecting an outside source to a socket 46.
Patent GB-1376822-A (GB)
Title: Expandable selfextinguishing styrene polymers
IPC: C08J9/20
Filed: 1972-02-02
Abstract: 1376822 Expandable flame-retarded styrene polymers BADISCHE ANILIN- & SODAFABRIK AG 2 Feb 1972 [3 Feb 1971] 4804/72 Headings C3C and C3P Expandable self-extinguishing polymers, derived from at least 50% by weight of styrene, contain a blowing agent, an organic halogen compound as a flame-retardant and an oxyalkylation product of ammonia or a primary or secondary amine e.g. a mono-, di- or trialkanolamine or its polyalkylene glycol derivative, which is soluble in styrene and at least partly soluble or dispersible in the styrene polymer. The polymers may be made by polymerizing styrene, and optionally a minor amount by wt. of comonomers, e.g. acrylonitrile, in aqueous suspension at above 85 C. in the presence of a free-radical generating initiator, the oxyalkylation product, the halogen compound and the blowing agent. The halogen compound may be a hexabromocyclododecane and may be used with a synergistic agent, e.g. di-t.-butyl peroxide, dicumyl peroxide or poly-p-di-isopropylbenzene. The oxyalkylation product may be bis-hydroxyethyldodecylamine, N-hydroxyethyl-piperidine, N-hydroxyethyl-dicyclohexylamine, N,N-bis-hydroxyethyl-cyclohexylamine, dimethyl-ethanolamine, N,N,N-trihydroxy-butylamine or N,N,N<SP>1</SP>,N<SP>1</SP>-tetrahydroxypropylhexamethylene diamine. The blowing agent may be n-pentane.
Patent GB-923672-A (GB)
Title: Extrusion die for making carbon neutronic reactor core bars
IPC: G21C5/12
Filed: 1962-02-08
Abstract: 923,672. Moderators. GREAT LAKES CARBON CORPORATION. Feb. 8, 1962 [Feb. 9, 1961], No. 4843/62. Class 39 (4). [Also in Group V] A moderator for a nuclear reactor comprises bars 20, Fig. 10, containing carbonaceous platelets 22 arranged in a plurality of superimposed parallel planes and so formed that the coefficient of resistivity and the coefficient of thermal expansion are greater in the X direction than in the Y or Z directions. The bars have cylindrical holes 21 for fuel elements and are formed from carbonaceous platelets in pitch binder by extrusion through a special die (see Group V). Specifications 829,196 and 847,840 are referred to.
Patent GB-1131603-A (GB)
Title: Modulation apparatus for comparison of two continuous voltages
IPC: H01J37/24
Filed: 1966-02-03
Abstract: 1,131,603. Differencing circuits. SOC. D'OPTIQUE, PRECISION ELECTRONIQUE ET MECANIQUE. 3 Feb., 1966 [17 Feb., 1965], No. 4855/66. Heading G4G. [Also in Divisions G3 and H3] A differencing and modulating circuit comprises inputs from which error and reference voltages E 1 , E 2  for comparison are applied over diodes D 1 , D 2  to the primaries 1a of a differential transformer; the inputs being shunted by a capacitance balance circuit 3 and the primaries being joined by a resistance balance potentiometer 2 whose slider is connected to a positive supply voltage greater than E 1 , E 2 . The latter is connected to the collector of a transistor T, whose emitter is earthed over a RC shunt circuit and whose base receives a modulating alternating voltage M. The reference voltage E 1  may be applied to the base of a further transistor whose collector is returned to the positive supply voltage and whose emitter is also earthed through the emitter load resistor of T r , so that operation is independent of the magnitude of E 1 . The secondary 1b of the transformer electrostatically screened from the primary produces an alternating voltage representing the difference in amplitude and phase sense from which filter 4 removes spurious signals at modulation frequency. The diodes and their associated resistances may be embedded in parallel channels of a copper block for temperature equalization, and the device is stated to be applicable to the control of the electrode voltages of an electron microscope.
Patent GB-139191-A (GB)
Title: Improvements in control mechanism for electric cars provided with pneumatic brakes
IPC: B60T15/08
Filed: 1920-02-18
Abstract: 139,191. Westinghouse Electric & Manufacturing Co., (Assignees of McWhirter, J. S.). Feb. 18, 1919, IConvention date]. Controlling different functions by same handle or lever; pedals and pedal levers, mounting; stopgear operated by driver releasing a lever.-In electric cars provided with !pneumatic brakes which are normally applied, means are provided for simultaneously releasing the brakes and closing the normally-open circuit of the motor controller. The brake valve 4 is controlled by a handle 5 connected by a rod 12, bell-crank lever 13, and rod 15 to a pedal-operated lever 16. A spring 30, or a pneumatic cylinder, normally holds the brake valve in the " on " position. When the pedal 19 is depressed, the rod 15 is raised and the brakes are released; at the same time an arm 20 on the rod closes the contacts of a switch 25 in the main circuit of the controller 2. The brake-handle 5 can only be put on and removed in one position, in the usual manner, and the pedal 19 is detachably mounted on the lever 16, fitting over pins 18 thereon. Where the controller 2 is of the " master controller " type and governs a motor controller of the " automatic acceleration " type, the controller handle 32 may be left in the " full-on " position, control being then effected entirely through the pedal 19.
Patent GB-291135-A (GB)
Title: Improved process of and apparatus for treating yeast
IPC: C12N1/18
Filed: 1927-02-22
Abstract: 291,135. Scott, W. Feb. 22, 1927. Yeast after fermentation is reconditioned by circulating beer or liquor over it at a controlled temperature and in an enclosed vessel with or without an additional air supply. The yeast is skimmed or sucked into vessel 1 and the liquid portion of the skimmings circulated over the yeast by a motor-driven rouser 3. Cooling-coils may be employed, or, as shown, a cooling-jacket 8 surrounds a lower tubular part 6 which is insulated from the vessel 1. The vessel 1 is made of aluminium, and the tubular part 6 of copper. The reconditioning liquid is drained from the pipe. 13 and filtered separately from the yeast, and the yeast is withdrawn from the pipe 25 or from the pipe 13 after being washed by water supplied through a pipe 17. Carbon-dioxide is drawn off through the pipe 18 and a variable air or gas pressure produced through the pipe 19. Specifications 21925/13, 23795/14, 4637/15, 164,908, 221,895 and 242,114, [both in Class 14 (i), Aerating liquids &c.], are referred to.
Patent GB-829036-A (GB)
Title: Improvements in or relating to evaporators
Inventor: FRANKEL ADOLF
IPC: C02F1/06
Filed: 1957-02-13
Abstract: In a multi-stage flash evaporator having three or more stages each comprising a flash chamber and an associated heater or vapour receiver and an ejector for supplying steam to a live steam heater, the suction side of the ejector is connected to an intermediate stage of the evaporator so as to entrain brine vapour therefrom and deliver such vapour to the live steam heater. The evaporator may have considerably more than 3 stages, in which case the suction side of the ejector is connected to the heater or vapour receiver of one of the last few stages.  The evaporator may also have at least two fresh liquid heaters which operate at highest temperature.
Patent GB-1302403-A (GB)
IPC: C08F265/06
Filed: 1970-02-03
Abstract: 1302403 Polymethyl methacrylate articles E I DU PONT DE NEMOURS & CO 3 Feb 1970 [16 Jan 1970] 5031/70 Heading C3P Articles which have low flame spread characteristics are prepared by mixing (a) a polymerizable methyl methacrylate syrup, (b) 20- 85% by weight, based on the total mixture, of a hydrate of alumina and (c) a polymerization catalyst comprising a water-soluble peroxy compound; pouring the mixture on to a casting surface; and curing the mixture to form the article. The syrup (a) preferably comprises a solution containing 10-35% by weight of polymethyl methacrylate, or a copolymer of at least 50% by weight methyl methacrylate (with, e.g., vinyl acetate, styrene or a (meth)acrylate ester), in monomeric methyl methacrylate. Component (b) is preferably alumina trihydrate. The peroxy compound of (c) is suitably a hemiperester of maleic acid or a metal salt thereof. Catalyst (c) desirably also includes a small amount of water (to dissolve the peroxy compound and thereby increase the effect of the catalyst) and may also comprise a mercaptan chain transfer agent. If desired, a cross-linking agent such as a (poly)glycol dimethacrylate, divinyl benzene, triallyl cyanurate or diallyl phthalate can be included in the polymerization mixture; a filler or pigment (additional to the alumina hydrate) may also be used. Articles which are produced include sheets and laminating layers.
Patent GB-1507816-A (GB)
Title: Process for treating metal surfaces
IPC: C23C22/48
Filed: 1977-02-08
Abstract: 1507816 Treating metal surfaces with tannin containing solution PYRENE CHEMICAL SERVICES Ltd 8 Feb 1977 [9 Feb 1976] 05038/77 Heading C7U A process for forming a coating on a surface of aluminium, magnesium or an alloy thereof, comprising contacting the surface with an aqueous solution which has a pH of from 1 to 7 and which comprises a titanium or zirconium salt and a substance selected from tannin and tannic acid and its derivatives. The solution may additionally comprise phosphoric, polyphosphoric, tripolyphosphoric, hexametaphosphoric, organic phosphoric acid or salt thereof, other inorganic acid and organic acid or salt thereof and complexing agents and a salt of Mo, W, V, Fe, Co, Ni, Zn, or Sn.
Patent GB-590584-A (GB)
Title: Improvements in electro-magnetic switching devices
IPC: H01H71/26
Filed: 1945-02-28
Abstract: 590,584. Electromagnetic switches. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WATKINS, L. G. Feb. 28, 1945, No. 5051. [Class 38 (v)] An electromagnetic switch has two windings 9, 10 connected in parallel and acting in opposition, the winding 9 having in series with it a resistance 37 which increases in value when heated so that after a time interval, the winding 10 sufficiently overpowers the winding 9 to operate the switch. The switch shown is responsive to a protracted overload, the armature 12 then moving so that a projection 14 raises a contact spring 15. The co-operating contact 25 follows to start with but eventually the end 27 of a spring-biassed lever 28 slips under the bent-round end of the spring 15 (Fig. 4) and raises it quickly out of engagement with the contact 25 thus breaking the circuit both of the load and of the coils 9, 10. The switch is reset by pressing a plunger 32 which engages the lever 28.