baber/WOPTO huggingface dataset:
Patent GB-625156-A (GB)
Title: Improvements in or relating to control systems for x-ray tubes
IPC: H05G1/46
Filed: 1947-01-21
Abstract: 625,156. Control systems for X-ray apparatus. PHILIPS LAMPS, Ltd. Jan. 21, 1947, No. 1907. Convention date, Nov. 17, 1943. [Class 38 (iv)] In a control system for X-ray tubes the current regulating devices coupled to the voltage and time selectors 5, 27 comprise variable resistances 11, 12, connected respectively across the secondary windings of two transformers 13, 14 having variable transformation ratios, the primary windings of which are connected in series in the heating circuit of the tube cathode. Each control switch 25, 26 associated with a variable resistance is also coupled with the means, such as switches 23, 24 for varying the transformation ratio of the transformer associated with the other variable resistance so that the control stages of the variable resistance associated with one selector are all varied simultaneously upon alteration of the other selector. The tapping points on the transformers may be reduced by connecting a tapping to two or more adjacent contacts on the ratio change switch. When a number of tubes 1-3 are required to operate alternatively, e.g. upon a tube failure, adjustment of the control circuit to suit the characteristics of the respective tubes is effected by further modification of the transformer ratios and/or the value of a resistance 10 also included in the cathode heating circuit by switches 15, 16, 22, actuated simultaneously with operation of the change-over switches 18-21. The variable ratio tappings may be provided on either of the transformer windings but in the preferred form they are provided on both to reduce the total number of tappings necessary. The tappings associated with switches 23, 24 may be provided on separate transformers connected in cascade with the respective transformers 13, 14.
Patent GB-563303-A (GB)
Title: Improvements in or relating to childrens' cots and like furniture
IPC: A47D7/00
Filed: 1943-02-05
Abstract: 563,303. Children's cots. DAVIS, H. Feb. 5, 1943, No. 1917. [Class 52 (ii)] The upper part 3 of one or each side is hinged to open downwards and has projections 4 to fit in notches 5 in the uprights in the closed position. The ends 6 are solid or upholstered and fold in the middle 8 when the base 7 is removed.
Patent GB-1291731-A (GB)
Title: Game apparatus
Inventor: THATCHER IRVINE LAURENCE
IPC: A63F3/02
Filed: 1969-01-13
Abstract: 1291731 Toy boats; board games I L THATCHER 13 April 1970 [13 Jan 1969] 2023/69 Headings A6H and A6S Apparatus for playing a sailing game comprises a board provided with grooves 1, 3 adapted to receive the keels 10 of a plurality of model sailing boats 6, each model being provided with a mast 7 which is rotatable relative to the hull of the model, the mast 7 being connected by gearing to the keel 10 which is pivotally mounted in the hull and to a tiller 25, a wind indicator 23 and jib 9. Each groove 1 is made up of communicating vertical and inclined grooves so that the model may be correctly positioned with respect to the direction of the wind which is determined by an "Officer of the Day" who controls the playing of the game. The moves of the boats across the board are governed by the throws of dice, and by instruction cards drawn from a pack.
Patent GB-469326-A (GB)
Title: Improved means for handling tubing in wells
IPC: E21B19/06
Filed: 1936-01-22
Abstract: 469,326. Handling tubing in wells. BYRON JACKSON CO. Jan. 22, 1936, No. 2069. Convention date, Sept. 16, 1935. [Class 85] Means for use in a well for raising and lowering pipes with flared upset ends comprises two hinged members 1, 2 adapted to be held together by a latch 6 so as to form a circular opening 3 to receive the pipe, the opening including a tapered seat 3a considerably below the upper surface of the device. The latch 6 is of hollow rectangular form and pivoted loosely on a pin 13 in member 1 ; a spring 25 presses the latch which is adapted to fit over a lug 10 on the member 2, while a projection 33 on the member 1 is adapted to engage the latch to relieve the hinge pin 13 of strain. The latch face engaging the lug 10 is curved concentric with the pin 13. A lug 35 on the member 1 engages a recess in the member 2 to relieve the latch of vertical stresses. A lock 15 is pivoted on a pin 16 in the latch and has a hooked end 18 adapted to engage a recess 19 in the lug 10. while a cam surface 30 gives automatic action of the lock; a spring 17 constrains the lock to operative position. Lugs 23, 28 limit opposite movements of the lock which has an operating handle 22.
Patent GB-983131-A (GB)
Title: Purification of alcohols
Inventor: SPALL BRIAN CLIFFORD
IPC: C07C29/74
Filed: 1963-01-17
Abstract: Alcohols containing 2 to 4 C atoms, especially those produced by the hydration of olefins, are purified by distillation in countercurrent contact with at least 5 molar alkali metal hydroxide at a reflux ratio greater than 3 : 1, preferably greater than 4: 1.  The example describes the purification of isopropanol.
Patent GB-1241233-A (GB)
Title: Testing of voltage regulators
Inventor: WILSON RAYMOND MICHAEL CHRISTO
IPC: H02J7/16
Filed: 1969-01-15
Abstract: 1,241,233. Testing voltage regulators. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan.15, 1969, No.2396/69. Heading G1U. A voltage regulator for a generator, of the kind which controls, in dependence on the generator output voltage, the mark-to-space ratio of a continuous rectangular pulse train applied to the field winding of the generator, is tested by applying to the regulator a signal simulating the generator output and determining whether the regulator produces the requisite pulses, an indication being given after detecting that a certain number of pulses have been produced. In the testing circuit of Fig. 2 the voltage across capacitor 46 simulates the generator output and is applied to the regulator via terminals 11a, 12a. The pulse train which is, or should be, produced by the regulator is received at terminal 13a, and, after amplification by transistor 53 is applied to transistor 43 to control the voltage across capacitor 46, thus simulating the operation of a generator. After, say, twenty pulses have been produced the regulator is presumed to be satisfactory and diode pump circuit 61-66 lights lamp 68. Meter 73 checks the simulated generator output voltage. To protect the test circuit against a possible short circuit in the regulator under test between terminals 11a, 12a, transistor 48 responds to the consequent discharge of capacitor 46 to reduce to a safe value the output of the voltage stabilizing circuit 37, 42 via which the test circuit is supplied. Diode test. A further test to check that a diode in the regulator circuit (23), Fig.1 (not shown) conducts satisfactorily when forwardbiased is made by closing switch 69 to change over relay contacts 71a, b. The diode is thereby connected in series with resistor 58 between the emitter of transistor 43 and terminal 12a so as to be forward-biased. Meter 73 is connected across the diode and resistor 58 and reads a high value-off the upper end of its scale - if the diode conducts satisfactorily, and a low value-off the other end of its scale - if it is unsatisfactory.
Patent GB-901304-A (GB)
Title: Improvements in and relating to a process for making instant coffee
IPC: A23F5/48
Filed: 1959-01-23
Abstract: 901,304. Coffee preparations. BONOTTO, M. Jan. 23, 1959 [Sept. 30, 1958], No. 2549/59. Class 129. Dry saturated steam is passed through a substance containing the acid-bodies fraction of coffee at a pressure of at most 18 inches of mercury absolute, the temperature being maintained in excess of the steam condensation temperature, and is then condensed. In Example 1, the acid-bodies fraction of roasted coffee is removed by an inert gas and adsorbed in a column of silica gel from which it is removed by the steam. Freshly roasted and ground coffee is placed in column 10, Fig. 1, valves 112, 114, 136, 118, 120, 132 and 128 are opened and nitrogen gas from tank 22 is passed by lines 52 and 54 into column 10 and thence through lines 62, 70 and 68 into column 12 containing silica gel until a smell of coffee is detected at exit line 94. The coffee is then removed from column 10 and made into a brew which is concentrated, under vacuum, to about 64% solids content. The gel in column 12 is then heated to 140‹ F., valves 120 and 128 are closed, valves 142, 122 and 126 are opened to admit steam at 60 p.s.i.g. which passes through line 74, steam superheater 28 in line 72 and line 68 to column 12 from which it passes through lines 66, 76, 78 into condenser 14 and then receiver 16. Pump 20 maintains a lowered pressure in the system, gauge 102 registering 1 inch mercury absolute, operating through a dry ice trap 18. When the acidbodies fraction thus obtained was added to a cup of coffee made from the instant coffee made from the grounds the flavour was improved. According to Example II, valves 142, 116 and 136 are opened to admit steam to a smaller column 10 containing coffee which has been heated to 140‹ F. vacuum pump 20 operating to maintain a pressure of 1 inch mercury. The steam then passes through lines 62, 64, 76, 78 to receiver 16. The treated grounds are extracted as before. Example III is similar to Example II but is carried out at a temperature of 185‹ F. and a pressure of 18 inches of mercury absolute. In Example V the volatiles escaping from roaster 30, cooler 32 or other coffee-treating equipment 34, 36 or 38 are drawn into a silica gel in column 12 by a fan 44 and the rest of the process is carried out as in the previous examples. Two columns may be used with one on the adsorption operation while the other is undergoing steam stripping. The operations may be carried out in a reducing atmosphere, e.g. of sulphur dioxide.
Patent GB-760607-A (GB)
Title: Improvements in or relating to drills for brick, concrete and like material
IPC: B28D1/14
Filed: 1954-01-28
Abstract: 760,607. Drills. MOORE, F. March 23, 1955 [Jan. 28, 1954], No. 2579/54. Class 83 (3). [Also in Group XXIII] A drill for brick, concrete, &c. comprises a thin-walled tube of tool-steel of non-circular cross-section formed from strip with one end having cutting-points. As shown, a tube 1 is flattened on opposite sides to the shape shown in Fig. 2, and four cutting-teeth 4 are formed by chamfering at 6 and 7 and cutting triangular notches 8. A slot 9 may be cut in one side and serrations 10 in the convex portions 2. The notches 8 may be omitted and the steel have only two points. The edges may or may not be welded together. The cross-section of the steel may be triangular and the shank circular.
Patent GB-1380658-A (GB)
Title: Lever clips for tensioning straps or rings
IPC: B65D45/34
Filed: 1973-01-18
Abstract: 1380658 Strap tensioning clip THEODOR SCHEMM 18 Jan 1973 [18 Jan 1972 11 Oct 1972] 2622/73 Heading F2G A lever clip for tensioning and securing a strap or ring 12, 19 comprises an elongate reaction member 1 having side flanges with bearing recesses 8 and an attached tensioning lever 2 also having side flanges 14 which mount bearing pins 15 receivable within the recess 8 so that the lever 2 is pivotable from an open position to a closed position against the reaction member 1 when the strap 12, 19 is tensioned. In a first embodiment, as shown, the entire assembly may be an integral thermoplastics injection moulding, the lever 2 and reaction member 1 being connected by a thin strip 3. When the lever is closed against the reaction member 1 it has passed the dead centre position and the clip is maintained closed by the strap tension. A locking member is receivable through corresponding slots 11, 18 to lock the clip. In a further embodiment, the lever, reaction member and strap are formed separately, the strap ends being looped through slots on the clip members. Bearing pins on the lever (30) (Figs. 4, 5, not shown), are snapped into recesses (8) on the reaction member which extends over more than 180 degrees.
Patent GB-395623-A (GB)
Title: Improvements in or relating to neckties
IPC: A41D25/06
Filed: 1933-01-27
Abstract: 395,623. Neckties. FAMOUS, E. M., 516, Woodcliffe Road, Upper Darby, Philadelphia, U.S.A. Jan. 27, 1933, No. 2666. [Class 141.] Reversible neckties are formed of two superposed fabrics 10, 11 shaped into open tubular terminal portions and an intermediate band so that the tie may be turned completely inside out to show either fabric. The edges 12 are inturned and seamed, and the tubular end portions are formed by folding the double fabric and stitching the seamed edges tobether as at 13. Reversal may be effected by pushing the end 11a through the tube, or by pushing one tubular portion through the other in succession, as shown in the upper part of Fig. 2.
Patent GB-265234-A (GB)
Title: An improved process for the production of valuable organic compounds from gaseous orvaporous hydrocarbons
IPC: C07C2/78
Filed: 1927-01-31
Abstract: 265,234. I. G. Farbenindustrie Akt.- Ges. Jan. 29, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Hydrocarbons; ethylene; acetaldehyde; acetic acid.-Gaseous or vaporous hydrocarbons, particularly saturated hydrocarbons, or mixtures containing them are subjected to incomplete combustion with pure oxygen, or with gases containing at least 50 per cent of oxygen, at temperatures above 850‹ C.; the amount of oxygen is such that a considerable amount of hydrocarbon remains unaltered. The process may be performed by causing a stream of hydrocarbon to draw in oxygen &c. through lateral orifices, the mixture being then ignited, or the oxygen &c. may be introduced into the hydrocarbon through separate tubes, preferably with tapered nozzles, the mixture being ignited at the point of introduction. By means of porous and refractory ceramic materials the combustion may be made to proceed as a surface combustion. The products include unsaturated hydrocarbons, such as acetylene and its polymerization products, and the yield of these may be increased by heating the products to higher temperatures. In one example, methane, preheated to 900‹ C. by the combustion products, is passed through a, quartz tube in which is a flame zone fed by four oxygendelivering nozzles. The temperature attained exceeds 1000‹ C. and the products comprise unaltered methane, water vapour, hydrogen, carbon monoxide, and acetylene. The acetylene may be converted directly into other products, such as acetaldehyde or acetic acid. In another example, ethane, preferably obtained from low temperature carbonization gas by means of active charcoal or silica, is passed, together with oxygen, through a porcelain tube, filled with fragments of pumice, which is heated to 900‹ C. immediately before the passage of the gas. The products contain over 25 per cent of ethylene. The higher homologues of methane, or gases containing them, such as distillation gases from coal or tar or gases from cracking processes, may be treated similarly. In a further example, methane is passed through an iron tube lined with refractory material and filled with lumps of porous refractory material over part of its length, at which part oxygen is introduced through a number of nozzles. A temperature of about 1000‹ C. is attained. The products contain acetylene, the yield of which may be increased by beating the products to about 1200‹ C. in an electric furnace.
Patent GB-101371-A (GB)
Title: Improvements in or relating to Hooping or Banding Bales of Pressed Cotton or other Products or Materials.
Inventor: MITCHELL JOHN PETER
IPC: B65D63/02
Filed: 1916-02-24
Abstract: 101,371. Mitchell, J. P., and Leyland, S. Feb. 24, 1916. Bale-tie fasteners.-One end of the tie is formed with an oblique or rounded extremity 1 and a narrow neck 3 formed by cutting-away. Near the other end, the tie is formed with a slot 4 having parallel sides and the end remote from the extremity of the tie rounded. The tie is arranged so that, after the ends are interlocked, the extremities lie inside or adjacent to the hale.
Patent GB-196992-A (GB)
Title: Improvements in or relating to shades for lamps
IPC: F21V1/18
Filed: 1922-01-31
Abstract: 196,992. Baker, S. H. Jan. 31, 1922. Shades; mounting shades directly on rods or tubes. - A downwardly flared lamp shade of circular, triangular, square, &c. cross-section, is formed by folding a blank a and connecting its adjacent edges by means of tabs b and slits c. A disc or flat collar e resting on the neck d of the lampbulb and having diametrically opposite slots g to accommodate the lamp-pens supports the shade, the upper end of which fits over the lamp holder. Ventilation passages h<1> may be provided in the collar or disc. The shades may be made of mill-board, cardboard, textile fabrics, thin sheet-metal, such as tin or aluminium, &c. The top of the shade may be slit slightly to allow for expansion. The shade may have an ornamental or other pattern printed on it.
Patent GB-1086793-A (GB)
Title: Method and apparatus for vapour deposition
IPC: C23C14/24
Filed: 1966-01-21
Abstract: <PICT:1086793/C6-C7/1> In a process of vapour depositing a mixture of at least two substances of different vaporizing temperatures on to a substrate, the substances are arranged in layers superimposed on a support which is exposed to a heat source located nearest the layer of substance with the highest vaporization temperature, the succeeding layers having progressively lower vaporization temperatures, and evaporation is allowed to take place until an evaporation surface is formed which exposes a portion of each layer whereupon the substrate is exposed to the evaporation surface and the heat source is moved relative to the support so that a constant area of each layer is exposed during deposition. The relative speed between the heat source and support is such that all the layers are completely vaporized as they pass across the heat source. The substrate and support are also preferably moved relative to one another at a speed greater than the relative movement between support and heat source.  In a preferred embodiment shown in Figure 3 the support 10 is mounted on a rotary vertical shaft 11 and the layers 12 of the substances to be evaporated are arranged on the support 10 and heated by stationary heater 13.  Substrates 16 are mounted on plate 14 which is rotated at a speed faster than plate 10.  The speed of rotation of plate 10 and the heat supplied is chosen so that the layers 12 are completely evaporated in one revolution of the plate. The thickness of the layers to be evaporated is determined by the proportion of the different substances in the coating and in the example the first layer is Si, the second layer is Te and the third layer is As.  In an alternative embodiment the plate 10 may be an endless belt and the substrates may also be on an endless belt for continuous operation.
Patent GB-769234-A (GB)
Title: Expanding reamer
IPC: B23D77/10
Filed: 1955-01-31
Abstract: 769,234. Reamers. MERZ AKT.-GES. Jan. 31, 1955 [Feb. 8, 1954; Nov. 30, 1954], No. 2875/55. Class 83 (3). An expanding-reamer comprises a sleeve-like body 1a supporting the blades 4 and having longitudinal slits 2 which do not extend to the end of the body, and means 10 for expanding the body through engagement with it in an endzone of the blades. Conical expanding-surfaces 11, 12 of the same or different slopes may be provided on the plug 10 for each end of the axial or helical blades 4, and are assisted in their action by recesses 8, and preferably also by bores 15 which weaken the body. The body may be a separate component secured on the Morse-taper shank 1 by the expanding plug. Holes 30, Fig. 3, may be provided substantially beneath or between the blades to weaken the unslit part 5 of the body, and the slits arranged beneath or between the blades 4. Instead of holes 30, or in addition to them, radial or axial notches (not shown) may weaken the part 5. In Fig. 4, the body is additionally weakened between the ends of the blades, which may be tipped with carbide &c., and the unslit part 26 of the body.
Patent GB-489665-A (GB)
Title: Improvements in telephone systems and automatic switches suitable for use therein
IPC: H01H67/06
Filed: 1937-02-01
Abstract: 489,665. Exchange and party-line systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and GRAHAM, J. ST. C. W. Feb. 1, 1937, No. 2933. [Class 40 (iv)] In a party-line system such as that described in Specification 476,813, the selecting switches are spring driven and controlled by an escapement and the springs are rewound after each call by means of current supplied from the exchange. When a party-line subscriber calls, apparatus at the exchange resembling that described in Specification 452,038 sends high voltage positive pulses over the B-line, and these, by the action of neon tube NT and rectifiers MRA, MRB, operate the escapement magnets F at all stations synchronously with an identifying switch at the exchange, and the first impulse actuates also the eyeball indicators MP1. When the subscriber is called, high voltage negative impulses are applied to the B-line to operate the escapement magnet C. After each call, impulses are sent to drive both switches to their home positions, excess impulses being rendered ineffective by the shunted rectifiers MRC, MRD, or by opening the stepping circuit by springs controlled by the switch. Springs CWC, FWC change over and low voltage battery is connected to both legs of the line to energize re-winding magnets FW, CW in self interrupting circuits, which are broken by springs FWC, CWC, when the springs are fully tensioned. Alternatively, both magnets may be fed from the high voltage source over the A wire. The eyeball indicator may be replaced by a shutter mechanically controlled by the switches. In some cases a single pair of switches C and F may serve several subscribers (say) in the same house and the busy condition of the line would then be signalled by a tone current. Switch construction. When escapement anchor 13 is rocked, the shaft 12 is rotated in the direction of the arrow by a spring contained in the barrel 10. On the first step, cam 18 leaves roller 19 to operate the offnormal springs F(N) and in due course a cam 20, the position of which is readily adjustable, operates the springs F1, F2. After the call, the escapement magnet again receives impulses until cam 18 restores the off-normal springs. At this stage, a pin carried by a member 22 secured to the shaft comes behind a pin in a disc 23 mounted loosely on the shaft and moves the disc so as to close the springs FWC in the re-winding circuit. The re-winding magnet then drives the spring barrel 10 through gearing 31, 11 until the disc 23, which is rotated by the spring barrel, again .reaches its normal position. The same magnet may control the escapement and the re-winding operation and a common re-winding magnet may be provided for both switches. These modifications are not described.