baber/WOPTO huggingface dataset:
Patent GB-317812-A (GB)
Title: Improvements relating to gramophone needles
IPC: G11B3/48
Filed: 1928-05-23
Abstract: 317,812. Fairweather, D. K., (Ramsay, C. N. M.). May 23, 1928. Tools for reproducing. -- Gramophone needles are prepared from spines of the agave or opuntia species of the Xerophytes, which are treated to separate the wood from the keratin and subsequently hardened, and if desired coated with a material similar to record material. As an example, the spine may be softened by dilute acid and then heated moderately for some hours and soaked in a wood detector, e.g. iodine solution. The wood part may then be cut away from the keratin, which is then hardened by steeping in alcohol or ether for some hours. A coating of resin, cellulose dope, bitumen, or material similar to record material is then preferably applied. Specification 285,576 is referred to.
Patent GB-722214-A (GB)
Title: Improvements in and relating to the construction of hand grenades
IPC: F42C15/23
Filed: 1952-06-16
Abstract: 722,214. Hand grenades; fuzes. PLASTICAS ORAMIL S. L. June 16, 1952 [July 23, 1951], No. 15136/52. Class 9(1). A hand grenade comprises a body 1 containing an explosive charge 6, a fuze casing 5 screwed to one end thereof, the casing 5 enclosing a priming cap 51 and a striker having an opening for the passage of the flash to a detonator tube 7, the striker being normally held in a retracted position by a pin 8 connected to a tape 9 which is wound around the fuze casing and which is protected during storage and transport by a safety cap 2 screwed to the fuze casing. The body 1 is threaded at 49 to receive a closure plug 13 which is perforated to receive the booster charge 7. The latter has a rim 16 for locating it correctly in position, and is held in place by a plug 15. The fuze body 5 is screwed at 11 to the body 1 and at 18 to the cap 2. The main parts of the fuze consist of a priming cap 51 mounted in a movable part 29, Fig. 4, a percussion hammer 33 and associated ball 27, safety device 8, and surfaces 26, 39 and 43 so shaped as to ensure the movement of the hammer and percussion cap towards each other on impact. When the grenade is to be used the cap is first removed by unscrewing. During flight a weight 44 attached to the tape 9 causes the latter to unwind and eventually withdraw the pin 8 from engagement with bores in the fuze body and firing hammer. The latter is then free to strike the cap 51 when the grenade strikes the target. During such movement of the hammer a pin 37 thereon rides down a dot 32 in a casing 29. In the event of a miss-fire the grenade may be safely retrieved by reason of the fact that the pin under the combined axial and torsional movements of the hammer spring 31 has moved into another limb 48 of the slot, thus preventing further axial movements of the hammer.
Patent GB-380032-A (GB)
Title: Improvements in or relating to thermostatic valve-controlled gas burners
IPC: F23Q9/04
Filed: 1932-05-28
Abstract: 380,032. Safety cut-off gas valves. BOSCH AKT.-GES., R., 4, Militarstrasse, and STEINHARDT, C., 6, Haigststaffel, both in Stuttgart, Germany. May 28, 1932, No. 15178. [Class 135.] Thermally - actuated valves; fluid - actuated valves.-A safety cut-off gas valve closing on extinction of the gas flame comprises a valve h, Fig. 2, in a casing b, one wall of which is formed by a distortable disc c grazed directly by the flame of the burner e separate therefrom. The valve h is mounted on a perforated spring disc i which holds the valve with its thrust pin k in contact with the disc c. A lighted match is sufficient to warm up the distortable disc to bulge the same to allow the valve to open. A heat-conducting -pin f may be attached to the disc c to extend into the flame. Fig. 3 shows the arrangement applied as a pilot flame safety valve fed from a chamber s above a main diaphragm supply valve u. Should the pilot flame, at e, be extinguished the closing of the pilot valve causes gas pressure to bank up in the chamber s and close the main valve u supplying the main burner y.
Patent GB-749602-A (GB)
Title: Improvements in spring-loaded instruments for testing the hardness and other properties of materials and objects
IPC: G01N3/48
Filed: 1953-06-01
Abstract: 749,602. Testing hardness &c. CHESTER, M. A. June 1, 1953, No. 15217/53. Class 106 (2). A hardness testing instrument, Fig. 3, comprises opposed anvils 25, 26, a penetrator 34 in the anvil 26, and a spring 47 loaded to a predetermined value, which acts through a lever 39 on the penetrator 34, the force of the spring being opposed by a knob 52 and toggle arrangement 59, 60. A handle 29 is turned through torque limiting means to cause the anvil 25 to press the test-piece against the anvil 26. A knob 69 acts through torque limiting means on a screwed member 68 movable towards the penetrator 34. The test-piece is clamped between the anvils 25, 26 and the knob 69 is turned until the penetrator 34 engages the test-piece. The knob 52 is then used to permit the spring 47 to force the penetrator 34 into the test-piece and away from the screw 68. The depth of penetration is determined by turning a worm 78, acting on the screw 68, until the screw 68 contacts the indentor 34, a dial geared to the worm 78 indicating the amount of such advance. Fig. 10 illustrates a construction having only one anvil and wherein the spring 47 acts on the penetrator 34 through levers 89 and 91. The casing has holes 88 for securing it by suction pads or magnets to the surface to be tested.
Patent GB-612228-A (GB)
Title: Improvements in or relating to protective arrangements for electric supply systems
IPC: H02H9/04
Filed: 1946-05-20
Abstract: 612,228. Protective cut - out systems. GENERAL ELECTRIC CO., Ltd., GALLIZIA, E., and THOMPSON, W. G. May 20, 1946, No. 15220. [Class 38 (v)] An electromagnetically-operated, mercuryjet switch for an over-voltage protective system comprises a fixed electrode 7 insulatingly mounted above a mercury pool 6, and a magnetic plunger 11 slidable in a cylindrical lower extension 10 of the container surrounded by two operating coils 14, 15. A fixed tube 12 passes through the plunger so that downward movement thereof forces a jet of mercury up the tube 12 to engage the fixed electrode 7. This switch, or one such as that described in Specification 612,194, is arranged on overvoltage to connect a load resistance 1 across a D.C. supply 2 fed from a mercury arc rectifier 3, to absorb regenerated power. The operating coil 14 is energized through a rectifier 17 from an A.C. supply 16, while the restraining coil 15 is energized by the difference between the D.C. supply voltage, and a larger fixed voltage obtained from a rectifier 19 and transformer 21. As the supply voltage increases and approaches the magnitude of the fixed voltage, the coil 15 is de-energized, allowing the coil 14 to operate the mercury switch, completing the circuit through the resistance 1, and the coil 8 of a contactor 9 which maintains the circuit momentarily established by the mercury jet. A forward-current relay short-circuits the coil of the contactor 9 to disconnect the resistance when current flows from the rectifier again. In an alternative arrangement, Fig. 2, the grid of a vapour-filled valve 29 is energized from a potentiometer across the D.C. supply lines, so that at a certain over-voltage the valve fires, energizing the single coil 28 of the mercury switch 27 to connect the load resistance 25. The flow of current to the resistor 25 operates the reverse-current relay 39 to energize the coil 38 of a contactor 34, which maintains a circuit for the resistance over contacts 40, and opens contacts 33 to de-energize the mercury switch and valve ready for the next operation. When forward current flows from the rectifier again, relay 39 de-energizes the contactor 34, thereby disconnecting the resistance. In a similar arrangement, Fig. 3 (not shown), two valves are used in parallel, with their anodes supplied from a rectifier bridge, and the grids are energized through a potentiometer with the difference between the supply voltage and a fixed voltage from a second rectifier bridge. The mercury switch, maintaining contactor, and an auxiliary relay are connected in parallel in the anode circuit.
Patent GB-750481-A (GB)
Title: Polyalkylene polyamino acid compounds
IPC: C07F9/38
Filed: 1953-06-03
Abstract: The invention comprises new compounds of general formula <FORM:0750481/IV(a)/1> in which Y is a bivalent alkylene or cycloalkylene group which interposes 2 or 3 carbon atoms directly between the nitrogen atoms; X is a bivalent alkylene group consisting of a chain of 4-12 carbon atoms which may be interrupted by ether-oxygen atoms, and saturated with hydrogen and/or one or more alkyl groups; Z is a bivalent alkylene group containing 2 to 6 carbon atoms and which may be either straight-chained or branched; and A is -CH2COOH, -CH2.CH2COOH, -CH2PO (OH)2, -CH2CH2PO(OH)2, -CH2CH2CH2PO (OH)2, -CH2CH2SO3H, and the alkali metal and ammonium salts thereof and the methyl and ethyl esters of the phosphoric acids; and the acid addition compounds thereof.  The "A" groups function as metal ion chelating groups and the terminal nitrogens are capable of reacting with mineral and fatty acids to form salts, e.g. the diacetic amino acid will react with a divalent metal (Me) as follows:- <FORM:0750481/IV(a)/2> further the terminal nitrogen atoms may react independently with acids, e.g. stearic acid, to form addition salts. Compounds of this invention may be prepared by converting the appropriate polyalkylol polyalkylene polyamines to the diacetic acid derivatives.  They may also be prepared by reacting one molecular proportion of the appropriate symmetrical alkylene diamine dialkyl phosphonic or sulphonic or dialkanoic acid with two molecular proportions of a suitable halogen substituted alkyl dialkanolamine. The -CH2CH2COOH group may also be introduced by cyano-ethylation followed by hydrolysis of the resulting dipropionitrile derivative. The compounds may also be prepared by reacting one molecular proportion of a symmetrically substituted halogen alkyl or alkoxyalkyl diamine dialkanoic acid (or corresponding dialkyl phosphonic or sulphonic acid) or its alkali metal salts with two molecular proportions of an appropriate dialkanolamine.  In the examples one mol. of N,N1-di-(2-iminodiethanolethoxyethyl) - ethylene diamine is treated with two mols of formaldehyde and of sodium cyanide under alkaline conditions to give the compound of formula <FORM:0750481/IV(a)/3> Methods of preparation are also given for the following:- <FORM:0750481/IV(a)/4> and <FORM:0750481/IV(a)/5> Numerous starting materials for the production of the compounds of the invention are also listed.  Specifications 600,629 and 744,926 are referred to.
Patent GB-153183-A (GB)
Abstract: 153,183. Skinder, J. K. Nov. 27, 1919. Stopping and controlling restive animals.-Relates to means for preventing the forward movement of the horse &c. and vehicle when it is desired to leave the horse standing of the kind in which the bridle is drawn tight by being hitched to ratchet mechanism connected with the hub of the road wheel. The means comprises a ratchet wheel 18 keyed on the hub 12 and a casing 13 provided with an ear-piece 23 to which the rein 33 is hitched when desired, and also a spring- pressed pawl 26. The casing is held in position by a screw in part 20. The pawl may be square in section and provided with side pins 27 which slide in slots 28 in the sides of a square socket 24.
Patent GB-313157-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06G3/08
Filed: 1929-05-16
Abstract: 313,157. Askania-Werke Akt.-Ges. vorm. Centralwerkstatt Dessau und C. Bamberg-Friedenau. June 8, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Harmonic analysis.-Relates to apparatus for evaluating the integrals fr sin w dw and fr cos w dw, where rand ware polar co-ordinates, the expression occurring in connection with investigations in gravitation, for example, relative to the change of gravity and deflection of the plumb line due to large masses. If M is a cross section of the mass, and O the point for which the values are required, and Ox, Oy co-ordinate axes through 0, a bar EE is pivoted at O concentric with a fixed pinion Z2 which meshes with an equal pinion centred at a point 01 on the bar EE. On an arm O1A fixed to the pinion Z1, works a slide S, attached by a cord led round a pulley at 01 to a roller k, bevel geared to a roller R arranged to slide along the bar EE with its plane perpendicular to the bar so that it rolls an amount r dw where w is the angle between the bar EE and the axis OX. The arrangement is such that with a spring on the arm O1A keeping the cord taut, the slide S moves the same amount r dw. To the slide S is pivoted a slide running on a rod L, which passes through a slide fitted on and at right-angles to a slide B working on the bar EE. The bar L is thus always perpendicular to the bar EE. The readings of the slides S and B on scales on the bars L and EE give the required values fr sin w dw and fr cos w dw respectively, when the roller R is drawn round the figure M.
Patent GB-1468028-A (GB)
Title: Padding of goods in web form
IPC: D06B21/00
Filed: 1974-04-08
Abstract: 1468028 Padding textile webs F G AUDAS 17 March 1975 [8 April 1974] 15449/74 Heading D1L In the padding of textile webs by passage of the web 46 around roller 40 immersed in padding liquid 38 followed by squeezing in nip rollers 42, the web is treated with a countercurrent of steam in chamber 26 prior to contact with the liquid so as to remove air from the web, access of air to the web subsequently being prevented by passage through a seal 32 comprising a pair of rectangular slabs 34 of plastics foam faced with P.T.F.E. The boxlike chamber 26 is disposed within insulated enclosure 10 to which steam is supplied via inlets 14, 16, condensate being discharged at 22. The inlet 60 to the chamber 26 has a protrusion 62 over which the web passes thereinto so as to minimise steam condensation and flow impedance.
Patent GB-769188-A (GB)
Title: A method of securing wall-facing slabs together
IPC: E04F13/08
Filed: 1955-05-31
Abstract: 769,188. Walls; slabs. JANHENEN, M. May 31, 1955, No. 15509/55. Class 20(4) and 87(1) A method of securing wall facing slabs 4, Fig. 5, comprises connecting irons 3 to vertically aligned irons 2 which project from a wall 1, and joining to the irons 3 elements 5, which project from the slabs 4, the space around the irons 3 being finally filled with concrete or other hardenable mass. The wall 1 may be built of light weight concrete blocks, and the irons 2 and elements 5, which may be irons embedded in the slabs 4, are bent around the vertical irons 3. To form a cavity 6, rubber tubes 7 or mortar are placed on either side of the irons 3, oakum 9 is placed between adjacent slabs 4 and the verticle channel so formed, filled with concrete 10. The slabs 4 may have checks, shoulders or grooves at their edges.
Patent GB-669622-A (GB)
Title: Improvements relating to the manufacture of dry surface contact rectifiers
IPC: H01L29/24
Filed: 1950-02-09
Abstract: 669,622. Dry surface contact rectifiers. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., JENKINS, A., and PETER, L. H. June 22, 1950 [Feb. 9, 1950], No. 15607/50. Divided out of 669,622. Class 37. A dry surface contact rectifier is made to have a stoichiometric metal titanate barrier layer and is thus distinguished from the otherwise similar rectifier made according to the invention of Specification 669,611. Any substance which reacts with titanium or titanium dioxide to produce the required barrier layer may be employed. The Specification mentions as suitable substances, copper and copper compounds, magnesium oxide, zinc oxide, lead monoxide, ferrous oxide, sodium hydroxide, sodium carbonate, manganese chloride, zinc fluoride, magnesium chloride, manganese fluoride, sodium chloride, potassium iodide, and oxygen bearing compounds of barium, strontium or calcium. In one embodiment metallic copper or copper nitrate is deposited on one surface of a semi-conducting titanium dioxide wafer and the whole heated in a hydrogen atmosphere to 1000‹ C. for from 1 to 15 minutes, and then cooled in air so that the resultant product is a copper titanate semi-conducting or non-stoichiometric in form except at the treated surface which is stoichiometric or insulating in form and thus constitutes the barrier layer on which thallium is subsequently sprayed to produce the counter electrode. In a modification the starting material is a TiO 2  or metal titanate wafer stoichiometric in form with the heating under this condition carried out in a reducing atmosphere so as to convert the TiO 2  or metal titanate to its semi-conducting form. In a process utilizing titanium metal as the starting material there is conversion to stoichiometric metal titanate at the treated surface with immediately beneath this surface the formation of titanium dioxide. The barrier layer may consist of a mixture of two or more different metal titanates.
Patent GB-826938-A (GB)
Title: Improvements in or relating to the production of grinding surfaces
Inventor: BLAINEY ALAN
IPC: B24D18/00
Filed: 1955-06-01
Abstract: A grinding surface is produced on a body of metal or alloy by applying to a cleaned surface of the body a layer of a suspension of particles of zirconium or titanium of a size range of over 20 and up to 200 microns in an evapordole. liquid medium, heating the body and the layer to cause evaporation of the medium and then heating the body and the particles to a temperature of at least 900 DEG  C. in vacuo to cause the particles to become bonded to the surface of the body and allowing the heated body and the bonded particles to cool in vacuo.  The body may be of ferrous metals or alloys thereof, e.g. stainless steel, or of nickel or alloys thereof, particularly with chromium.  The cleaning of the surfaced may be effected by pickling and/or abrasion, e.g. with fine emery cloth and steel wool.  The evaporable medium may be an organic liquid, e.g. xylene, or a solution of a polymer or a wax in an organic solvent.  The suspension may be applied by brushing or spraying.  The heating is preferably at 930 DEG -1100 DEG  C.  The cleaned surface may be given a preliminary coating of zirconium or zirconium rich alloy by the method described in Specification 820,614, [Group II].
Patent GB-1426156-A (GB)
Title: Underwater multiple fluid line connector
IPC: F16L37/56
Filed: 1974-04-09
Abstract: 1426156 Pipe connector HYDRIL CO 9 April 1974 [30 April 1973] 15713/74 Heading F2G A multiduct connector apparatus for making fluid pressure connections between the upper and lower sections of a stack of underwater well equipment comprises upwardly opening receptacles 12, 13 having opposed, substantially flat, downwardly tapering interior faces 14a, 16a respectively, there being ducts 26 in the arms 14 of receptacles 12 and ducts 27 in the arms 15 of receptacle 13 terminating at the faces of each receptacle and a wedge shaped member 24 having substantially flat, downwardly tapering exterior faces 25a which is lowered to seat in the receptacles 12, 13 there being in member 24 ducts 28, 29 terminating at the exterior faces thereof that communicate with ducts 26, 27 in the receptacles when member 24 is seated. Receptacles 12, 13 are relatively vertically movable, the former being attached by structure 17 to and at the side of the upper section of the stack and the latter being attached by structure 18 to and at the side of the lower section of the stack. Structure 18 includes a tubular element 18a which receives a stem 19 integral with plates 20, 21 and arms 15 there being an elastomer sleeve 22 bonded to both stem 19 and element 18a. Member 24 is suspended from support plates 36 on frame 35 which also supports valves (38), Fig. 2 (not shown), to control fluid passing through the ducts. Upon lowering the member 24 it initially seats in receptacle 13 against faces 16a and on lowering further receptacle 13 is displaced downwardly compressing the sleeve 22 until member 24 is seated against faces 14a of receptacle 12 and all ducts are in complete registration. Member 24 is locked to receptacle 12 by bolt arms 64 pivoted at 66 which pass through slots 17 in plate 36 of member 24 and are spread by actuator 65 to enter slots 69 in end plates 31 of receptacle 12.
Patent GB-587884-A (GB)
Title: Improvements in or relating to glare or dazzle preventing devices
IPC: F21V7/09
Filed: 1943-09-27
Abstract: 587,884. Vehicle lamps. JOHNSTON, E. R., MERLING, K. B., and STACEY, H. R. Sept. 27, 1943, No. 15847. [Classes 75 (ii) and 75 (iv)] To prevent glare or dazzle from a lamp, the high intensity light beam of the lamp is bordered by a beam of lower intensity, the ratio of the intensities as judged from within the beam'being in the ratio of about 10 to 1 and the ratio of the areas illuminated on the retina being between about 1 to 9 and 1 to 400. In the vehicle head lamp shown, a high intensity parallel or slightly divergent beam is produced by the direct light from a 30 watt electric light bulb 15 having an aperture bordered by a silvered band 16 and reflected light from a parabolic reflector 10 passing through a lens 11, and the lower intensity beam is produced by light reflected by the reflector through a ground glass screen 13 having a central clear portion adjacent the lens 11. The relative diameters of the lens 11 and screen 13 are approximately 3 to 10. Instead of the ground glass screen 13, part of the reflector may be light diffusing or a light diffusing disc or cup may be provided at the back of the bulb 15 either externally or internally.