baber/WOPTO huggingface dataset:
Patent GB-810664-A (GB)
Title: Improvements in or relating to display packages and the like
Inventor: MACHIN NOEL GORDON
IPC: B65D73/00
Filed: 1956-05-05
Abstract: 810,664. Packages ; Cartons. TRANSPARENT PLASTIC CONTAINERS Ltd. March 5, 1957 [May 5, 1956], No. 6784/56. Classes 18 and 94(1). In a package of the kind in which one portion of a doubled card is apertured to receive a transparent containing element having a flange which is trapped between the doubled portions when these are joined, the section of card cut out to produce the aperture remains joined to the card by a tongue so that it may lay behind the element and articles therein to exhibit its printed surface. In one embodiment, the cut out portion 9 is joined to the card by a tongue 10 which lays behind the flange 8 of the element 7 in the closed package. In another a series of containing elements 7 may be attached to a single card in the manner shown in the first embodiment, the card being weakened so that individual elements with their surrounding and backing portions of the card may be removed as units, Fig. 5 (not shown). The cut out portion 9 may itself be apertured to receive a containing element, the latter being enclosed by the main element, Fig. 4 (not shown). The two card portions may each be apertured to receive an element 7, the elements projecting from both sides of the finished package, Fig. 3 (not shown). A package may be arranged to dispense its contents through an aperture 16 in the card, Figs. 6, 9. The main aperture has slits 6a extending from it and the card between these slits has a weakened area which may be removed permitting the element 7 to be slid along until its contents discharge through the aperture 16.
Patent GB-687155-A (GB)
Title: Improvements in or relating to fabric-covered dress accessories such as buckles and buttons
IPC: A44B11/00
Filed: 1950-03-18
Abstract: 687,155. Buckles; buttons. WARDLEWORTH, G. E., [trading as PICCADILLY PLEATING CO.] March 16, 1951 [March 18, 1950], No. 6796/50. Class 43. A fabric-covered dress accessory, e.g. a buckle, Fig. 1, or a button, comprises two moulded synthetic resin parts, namely, a body A having a rearwardly directed peripheral lip B and a plug D which fits inside said lip to trap the edges of covering fabric E placed over the body A, the said parts and the fabric being secured together by homogeneous bonding material F. The parts A, D are preferably made of thermo-setting synthetic resin and, after applying thermo-setting synthetic resin cement to the undersurface of the part A, they are pressed together so that some of the cement impregnates the edges of the fabric E, and while pressure is maintained the assembly is heated to cure the cement and thus effect a homogeneous bonding of the parts A, D and fabric E. The lip B may be outwardly flared and the edge of the plug D bevelled to allow slight expansion of the lip when thick fabric is used. The ends of a separate metal or moulded cross bar H may be received in grooves G, K in the parts A, D respectively, or in grooves in one part only; alternatively the body A may have an integral cross bar which, if it is to be fabric-covered, registers with a corresponding bar on the plug D, or the plug D only may have an integral cross bar. In making a button no central opening is formed in the parts, and the plug is provided with either an integral attachment eye or a metal eye moulded or otherwise fixed therein.
Patent GB-1263701-A (GB)
Title: Improvements in or relating to magnetic separating apparatus
Inventor: BAKER NORMAN
IPC: B03C1/20
Filed: 1968-02-13
Abstract: 1,263,701. Magnetic separating apparatus. N. BAKER. 13 May, 1969 [13 Feb., 1968], No. 7016/68. Heading B2J. A magnetic separating apparatus for separating bar ends from loose swarf comprises  a main endless conveyor 1 carrying the bar ends and swarf and a magnetic device set at an angle to the main conveyor and consisting of magnets 5 attached between two driven endless chains 4 and movable below a non- magnetic plate 6, the magnets diverting the bar ends from the main conveyor onto the non-magnetic plate 6 and moving them along the plate to be discharged over the end of the plate.
Patent GB-143493-A (GB)
Title: Improvements in storage electric batteries and in separators for the elements thereof
IPC: H01M50/40
Filed: 1920-03-08
Abstract: 143,493. Philadelphia Storage Battery Co., (Assignees of Holland, W. E., and Skinner, J. M.). May 17, 1919, [Convention date]. Separators consisting of a sheet of rubber or other insulating material are provided with narrow slots the total area of which is at least 40 per cent of the area of the separator. The thickness of the separator may be one sixty-fourth of an inch. Slots in adjacent rows may be staggered as shown in Fig. 1, and alternate slots in each row may be half the length of the remaining slots, the distance between adjacent rows being equal to about the width of a slot. Portions 9 of each separator may be left unperforated. Fig. 3 (Cancelled) shows a form in which the slots are inclined and the separator is provided with ribs 22. The slots may also be angular in form as shown in Fig. 5, and they may be rounded at the ends. The separators are used in a battery in conjunction with wood separators having ribs on one face. Specification 118,208 is referred to.
Patent GB-229874-A (GB)
Title: A manually propelled swath-turner
IPC: A01D76/00
Filed: 1924-03-19
Abstract: 229,874. Davies, A., J. March 19, 1924. Haymaking. - A manually-operated swathturner comprises a rectangular frame 1 carried by a wheel 2 and provided at its rear end with adjustable handles 4 and pivoted supporting legs 6. The wheel 2 rotates on a stud projecting from the right hand side of the frame 1 and carries a bevel wheel 7 meshing with a wheel 8 on a shaft 9 having at its forward end a transverse bar 10. Arms 12 are pivoted on studs 11 projecting from the bar 10 and at their other ends are secured to channel members 13 pivoted on spindles 15 projecting from a bar 16 mounted on a stub axle 17 fitted in a support 19 extending from the frame 1. Vertically-disposed spring tines 14 are secured to the channel members 13. In a modification the handles are secured to the frame 1 at a point just behind the axle and the supporting legs are pivoted to a rectangular frame fixed at right angles to the main frame; three sets of tines are fitted in the rotating frame.
Patent GB-729814-A (GB)
Title: Improvements in or relating to corona discharge tubes
Inventor: WADE FREDERICK
IPC: H01J17/00
Filed: 1951-03-27
Abstract: 729,814. Cold-cathode tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 27, 1952 [March 27, 1951], No. 7044/51. Class 39 (1). A corona discharge tube for use as a voltage stabilizer comprises a nickel wire anode 10, connected to a lead 3 in a glass bead 9, and a cylindrical cathode in two parts 5 and 6 supported from wires 7 and 8 which are connected to leads 4a and 4b in the bead 9. Part 5 of the cathode is of nickel with an oxidized surface while part 6 is of polished nickel. In preparing the cathode, both parts are degreased and polished and then outgassed by heating in vacuo in the glass envelope. Air to a pressure of 10 mm. is then admitted and cathode part 5 heated by induced eddy currents so as to oxidize it. The cathode is again outgassed by heating in vacuo and the envelope then filled with the final gas filling of hydrogen at 13 mm. pressure. It is stated that a corona discharge tube having a highly polished nickel cathode possesses a falling stabilization characteristic while a tube having an oxide coated cathode possesses a rising stabilization characteristic. In the tube according to the invention the ratio of oxidized to unoxidized cathode surface is selected to give the tube a level stabilization characteristic. The stabilization characteristic is the plot of the stabilization ratio against the pressure of the gas filling, the stabilization ratio being defined as
Patent GB-1399303-A (GB)
Title: Cyclic acetals containing epoxide groups
IPC: C08G59/14
Filed: 1973-02-13
Abstract: 1399303 Cyclic acetals containing epoxide groups CIBA-GEIGY AG 13 Feb 1973 [24 Feb 1972] 7057/73 Heading C2C [Also in Division C3] A cyclic acetal of formula in which X is hydrogen or methyl and R is a divalent hydrocarbon radical of a molecular weight of at most 500 and which can additionally contain ether oxygen atoms or oxygen atoms in the form of hydroxyl, carbonyl or epoxide groups, but which does not possess any other functional group is prepared by reacting an hydroxycycloacetal of formula where R<SP>1</SP> equals R with an epihalogenohydrin or #-methylepihalogenohydrin in the presence of a dehydrohalogenating agent. The hydroxy-cycloacetals may be prepared by reacting one mol of the dimeric hydroxypivaldehyde of formula in the presence of a strong acid, at below 20‹ C. with two mols of an at least dihydric alcohol of formula R<SP>1</SP>(OH) 2 .
Patent GB-311857-A (GB)
Title: Improvements connected with the warp-tensioning mechanism of looms
IPC: D03D49/08
Filed: 1928-03-07
Abstract: 311,857. Emmott, Ltd., R., and Jaques, J. W. March 7, 1928. Permanently-applied. - Each warp beam braking chain G is connected directly or through a spring F with a bar E provided with a series of holes to receive a pin e, whereby it is connected to a lever D pivoted at d<2> to a bracket A secured to the loom frame. The lever D is depressed by foot to tension the braking chain and is held in its adjusted position by ratchet teeth a<1>. The lever may be reinforced by a part d' and the bar E may pass through a slot, in the bracket.
Patent GB-253580-A (GB)
Title: Improved manufacture of fertilisers
IPC: C05B7/00
Filed: 1925-03-16
Abstract: 253,580. Pease, E. L. March 16, 1925. Manures.-A manure is prepared by treating a mixture of mineral or organic calcium phosphate and a porous material such as peat powder, coke dust, sewage sludge powder, or corn cobs with sulphuric acid or sulphur gases to obtain a mixture of calcium sulphate and free phosphoric acid, which is further treated with ammonia. Water may be present with the porous material or the acid used is diluted. According to the second Provisional Specification, an oxidizing agent such as sodium nitrite may be mixed with the porous material and phosphate when sulphur gases are used.
Patent GB-1384777-A (GB)
Title: Frequency modulator
IPC: H04L27/12
Filed: 1972-02-16
Abstract: 1384777 Digital transmission; F.S.K.  modulation WESTERN ELECTRIC CO Inc 16 Feb 1972 [19 Feb 1971] 7072/72 Heading H4P A frequency modulator comprises a series of values representative of preferably equi-angular amplitudes of a sine wave stored in a memory or look up table, and a processor which selects series of amplitudes under the control of incoming base band signals. The memory and processor are preferably digital in which case the memory may be time shared. In addition, once stored, the values are not subject to noise variations nor phase discontinuities when the frequency is shifted.  In an embodiment, the memory comprises a table of amplitude digital values of 40 successive equi-angular points on a sine wave, the processor selecting every tenth or eleventh point in accordance with the binary value of an input signal, the binary values, e.g. 6 bits when converted to analogue form producing a frequency shift wave. The successive points are identified by consecutive numbers hence the table produces conversion of a number to corresponding amplitude value. The input signal is sampled and added to 10 or 11 to produce an identifying number. The modulator may be time shared in a multiple transmitter interconnecting a plurality of input signals 101 and corresponding plurality of outgoing lines 1-n, with a carrier being frequency modulated. A scanner 102 controlled by channel count signals 206 from clock 201 produces successive trains of bits which are passed to F.S.K. modulator 103 where successive bit samples are converted into numbers these ultimately shifting the carrier frequency above or below its mean value. Modulator 103 is synchronized by clock pulses derived from signals 206 through OR 109. The bits of the binary number are passed in parallel to distributer 104 which also converts each number to a corresponding analogue signal and filters undesired components. 40 amplitude points are stored in a table Fig. 7 (not shown) corresponding to 9 degrees spacing and the ratio of spacing/marking frequencies = 10; 11. In ten cycles of spacing frequency there will be a total of 40 samples and in eleven cycles of marking frequency there will also be 40 samples in a similar period of time but every eleventh sample is selected instead of every tenth as with spacing frequency. The modulator is described in greater detail with respect to Figs. 3 and 4 (not shown).
Patent GB-1099371-A (GB)
Title: Process for the production of urea by synthesis from ammonia and carbon dioxide
IPC: C07C273/04
Filed: 1965-02-18
Abstract: Urea is made by reacting a gaseous mixture containing ammonia and carbon dioxide in a molar ratio greater than 2:1, at 180-240 DEG  C. and at a pressure in the range 180-300 kg./cm.2 gauge and (i) freeing the reaction product of approximately 30% by weight of unreacted ammonia by evaporation at a pressure of 120-150 kg./cm.2 gauge in a separation stage, (ii) decomposing ammonium carbonate present in the reaction product to ammonia and carbondioxide in a dissociation system to produce a carbamate-free product, which dissociation system comprises in a first stage (a) at which 20-40% by weight of the ammonium carbamate is dissociated by heating at 150-200 DEG  C under a pressure of 120-80 kg./cm.2 gauge and a second stage (b) at which the remaining ammonia carbonate is decomposed at 150-200 DEG  C., under a pressure of 120-80 kg./cm.2 gauge by the action of the gaseous ammonia obtained from the separation stage (i), injected in counterflow in respect of the reaction product, (iii) absorbing the ammonia and carbon dioxide thus produced at a pressure of 120-80 kg./cm.2 gauge in an ammoniated aqueous solution to form an ammoniated aqueous solution of ammonium carbonate, and (iv) recycling said ammonium carbonate solution to the reaction stage, said ammoniated aqueous solution being obtained by rectifying and condensing the vapour phase separated by concentration of the carbamate-free urea solution obtained at (ii) (b).  Fresh ammonia may be added to the ammonia separated in step (i) for use in the decomposition stage (ii) (b).  The process is illustrated by reference to a diagram of a flow scheme (not shown).
Patent GB-363243-A (GB)
Title: Method of heating coke ovens with alternately ignited top and bottom burners
IPC: C10B21/20
Filed: 1931-03-07
Abstract: 363,243. Coke ovens. GAS CHAMBERS & COKE OVENS, Ltd., Artillery House, Westminster.-(Assignees of Collin & Co. ; 72, Westfalendamm, Dortmund, Germany.) March 7, 1931, No. 7156. Convention date, March 13, 1930. Drawings to Specification. [Class 51 (ii).] In a vertically-flued coke oven having alternately ignited top and bottom burners the character of the gaseous distillates is varied by altering the level at which combustion begins at the upper burners, e.g. by using interchangeable nozzles of different lengths, or telescopic nozzles, for the supply of gas or air or both.
Patent GB-145133-A (GB)
Title: Improvements in self-closing valves
IPC: F16K21/12
Filed: 1919-03-22
Abstract: 145,133. John, A. E. March 22, 1919. Valves controlled by pilot or relay valves.-A self-closing valve of the kind controlled by an auxiliary valve has a combined actuating piston and valve member adapted to close the inlet port at the moment of closing the outlet port, the latter remaining fully uncovered up to the moment of the final throttling of the inlet port. The valve face 8 works in conjunction with a seat 9 and is secured to the lower end of a piston 7 which is bevelled at 11 and has one or more peripheral grooves 10. The actuating pressure which leaks past the piston is controlled by an auxiliary valve 18 actuated b a push 17. The spindle 15 works through a conical packing 16 which holds it in position until the piston contacts with an adjustable screwed stop 20 and closes the valve. In a modification controlled by a float-actuated auxiliary valve, an adjustable leak is provided to the back of the piston, and in a further modification controlled by a stopcock arranged on a pipe connexion the stop 20 is replaced by a tubular member screwed into the back of the piston.
Patent GB-453356-A (GB)
Title: The manufacture of agglomerate insulating material for industrial purposes and in particular for the building trade
IPC: C04B28/04
Filed: 1935-03-08
Abstract: A heat and sound insulating material comprises disintegrated pine wood bark, preferably disintegrated into sizes between 1/8 -\ba5/8 inches across, bound with Portland or like cement.  The setting of the mass may be accelerated by adding a solution of a lime salt, e.g. calcium chloride.  Fireproofing substances, e.g. perchloride of iron, may be incorporated in the mass.  The composition may be rendered waterproof by incorporating a soluble salt of a higher fatty acid in the mass or by applying an aqueous emulsion of bitumen to the surface.  Other insulating materials, e.g. pumice stone and clinker may be intimately admixed with the composition or these other insulating materials may be incorporated in the mixture in layers. The composition may comprise 75-85 per cent by volume of bark, 2-5 per cent cement, the remainder being a 10 per cent solution containing calcium chloride and perchloride of iron in approximately equal proportions by weight; the bark is preferably first treated with the solution of calcium chloride and perchloride of iron before adding the cement.  According to the Provisional Specification any coniferous wood-bark may be used.
Patent GB-1278221-A (GB)
Title: Levelling insturment
Inventor: ROEDER GERHARD HUETHER ROLF
IPC: G01C5/00
Filed: 1971-03-19
Abstract: 1278221 Sighting levels CARL ZEISS JENA VEB 19 March 1971 7284/71 Heading G1F [Also in Division G2] A levelling instrument comprising a telescope, an optical micrometer, and an optical system for imaging the micrometer reading, the anallactic point (at 14) of tilt involved in height measurement being offset from the vertical axis of rotation S 3  -S 3  of the telescope, includes a compensation device in the optical system of the micrometer which reacts to tilting of the instrument in a manner to cancel out errors in altitude measurement due to the offset of said anallactic point from the axis S 3 -S 3 . In the telescope portion, light from a distant levelling staff passes via an objective lens 4, a pendulum reflector 21, the lens 4, and glass cube 16 mounted on the lens 4 and having an interface 15, a lens 22 in the mount 3 of the objective lens, a prism 23, a lens 24, a glass plate 34, and an eye-piece 7. The pendulum reflector 21 has a pneumatic damper comprising a piston 27 in a cylinder and is mounted by a suspension 25 in a frame 35 movable bodily along the optical axis O 3  for focusing the telescope by a rack 36 and pinion 37. A collimating mark 14 on the objective lens 4 coincides with the anallactic point of tilt. The micrometer includes an index 39 on a transparent plate 40, Fig. 4 adjacent a plate 17 carrying the micrometer graduations 18. Light from the index 39 passes via a lens 38, a reflector 33 rigidly mounted on the pendulum reflector 21 and forming said compensation device, the lens 38, the plate 17, a lens 42, a prism 41, a lens 43 in the objective lens mount 3, the cube 16, the lens 22, the prism 23, lens 24, and eyepiece 7. The plate 17 is mounted on the objective lens mount 3, which is movable vertically in guides 9, 11. Opaque coatings 19, 20 on the cube 16 obscure parts of the telescope and micrometer images so that the eye-piece view, Fig.6 includes the micrometer marks 18, 39 and the image 45 of part of the levelling staff, which moves relative to the collimating mark 14 when the lens 4 is moved vertically. In modifications, the micrometer optical system may be independent of the telescope optical system and include one or more pendulum prisms for error correction, or the index and micrometer graduations could themselves be pendulum members.
Patent GB-944158-A (GB)
Title: Improvements in or relating to ball bearings
IPC: F16J15/34
Filed: 1961-02-28
Abstract: 944,158. Stuffing-box substitutes. AEROQUIP G.m.b.H. Feb. 28, 1961 [Feb. 29, 1960], No. 7375/61. Heading F2B. Sealing means for a ball bearing comprises a sealing sleeve 2 having an annular flange 4 compressed in a groove 5 in one race 6 and a sealing lip 3 pressed against a radial surface 12 on the other race 11 by a spring washer 1 formed of sinuous windings, as shown in Fig. 2, which when unstressed lie in the envelope of a truncated cone. The sleeve is centred by a shoulder 8 thereon engaging the surface 9 of the race 6. The washer 1 may be vulcanized into the sleeve 2. In a modification, Figs. 3 and 4 (not shown), the flange 4 is reinforced by an L-section rigid ring and press-fitted into a recess in the race 6.
Patent GB-943480-A (GB)
Title: Magnetic recording media
IPC: G11B5/706
Filed: 1960-03-02
Abstract: A magnetic material comprises ferrite particles having a spinel crystal structure and a length to width ratio of at least 2 to 1, and containing additional cations other than ferrous and ferric cations. In preparation, metal ions preferably of lithium, zinc, manganese, copper, gallium and germanium are diffused into elongated iron oxide particles without destroying the shape anisotropy by heating the oxide of the metal (or oxide-yielding compound) with elongated iron oxide particles at a temperature between 250 DEG  C. and 1000 DEG  C. Among suitable iron oxides which may be used are a .Fe2O3 and a -Fe2O3.H2O which may provide particles having a length-to-width ratio of 6 to 1.  The latter may be prepared by reacting NaOH solution with FeSO4.7H2O solution with agitation and exposure to air for 17 hours to produce colloidal Fe2O3.H2O which acts as crystal nuclei. Scrap iron is added to Fe2O3.7H2O solution and heated to 60 DEG  C., the colloidal Fe2O3H2O is added, and air is bubbled through for 4 hours. The resultant crystals after filtering washing and drying are acicular Fe2O3.H2O particles having a length between 0.6 and 1.8 m . In an example, elongated particles of zinc ferrous ferrite are prepared by grinding acicular Fe2O3.H2O particles with ZnCO3 and methano drying, screening, heating at 275 DEG  C. for 3 hours in H2 and at 500 DEG  C. in N2 for 10 hours and cooling. The material is rinsed in HCl to remove unreacted ZnO.  As alternatives other iron oxides may be used, lithium may replace the zinc in part or in full, and Mn, Co, Cu, Ni, Ge, Ag, Al, Ga, In, Th and Sn may replace the zinc or lithium in part.  Anions other than oxygen e.g. Cl Br S Se N P As. may be incorporated.  Magnetic recording media.-The particles formed as above may be mixed with a binder and applied to a base to form a magnetic recording medium.  The base may be a tape, drum, or disc and may be of iron, alloys, cellulose acetate, glass, ceramic, cloth or "Mylar" (Registered Trade Mark).  The binder may be cellulose acetate, polyvinyl acetate, copolymers of P.V.C. and P.V.A., sodium silicate, gum arabic, casein, glass or metals and may be magnetic. A magnetic field may orientate the particles.
Patent GB-698600-A (GB)
Title: Fuel injection pump plunger
IPC: F02M59/28
Filed: 1952-03-24
Abstract: 698,600. Fuel injection pumps. CATERPILLAR TRACTOR CO. March 24, 1952 [Jan. 21, 1952], No. 7495/52. Class 102 (i). In a fuel-injection pump in which the head of the piston 20 controls the inlet port 15 to initiate injection and the relief edge 31 controls the end of injection, a portion of the head is relieved at 40 so that when the engine is running, at a slow speed under overload, the initial part of the injection is made at a reduced rate and the beginning of injection is retarded.