baber/WOPTO huggingface dataset:
Patent GB-241384-A (GB)
Title: Improvements in and relating to milling machines
IPC: B23Q35/10
Filed: 1924-10-15
Abstract: 241,384. Reed, S. A. Oct. 16, 1924. Milling-machines ; milling helical surfaces. - In a milling-machine particularly for shaping the cambered faces of metal air propellers of aluminium alloy a cutter is employed in which the edge cuts across the work and is traversed at right angles to the line of cut, the peripheral speed of the cutter being not less than 30 feet per second and the width not exceeding 3/16". By this means a light supporting structure suffices to hold the work against the cutting pressure. The bench 1 carries a frame 5 which is adjustable on members 3 and which is provided with rails 4 supporting a longitudinally travelling carriage 7. The latter carries a cross-slide provided with an angularly adjustable table 13, supporting an electromotor 15 driving the milling cutter 17. Vertical shafts 19 adjustable in supports 2 carry parallel horizontal shafts 18, 21, which are connected by arms 22, 23, to a bar 27 and templet support 28 respectively. The rough work-blank is secured by screws to the bar 27 and the templet comprises a number of flanged members 31 each having a section equal to the section to be reproduced on the work at the corresponding longitudinal position. The templets are engaged by a jointed guide-bar 32 carried at each joint by spring-pressed bars 35 having contact blocks 37. In operation, the cutter is adjusted so that when the desired depth of cut is reached, a runner 38 engages the guide bar 32. A cut is then taken by a longitudinal traverse of the cutter. The positions of the work and templet are then varied as successive longitudinal cuts are taken until the work is completely formed. For finishing the work, the cutter may be replaced by a steel circular file or by an abrasive wheel.
Patent GB-731696-A (GB)
Title: Process for the recovery of elementary sulphur from gases containing hydrogen sulphide
IPC: C01B17/05
Filed: 1952-10-01
Abstract: In the recovery of sulphur from gases containing hydrogen sulphide by washing these with an alkaline or ammoniacal solution containing an organic oxygen carrier and then treating the solution with oxygen or air to oxidize the hydrogen sulphide to sulphur, the oxidation step is carried out at a temperature below 25 DEG  C.  As oxygen carriers hydroxybenzene or other cyclic oxy-compounds may be used.
Patent GB-724040-A (GB)
Title: Improvements in or relating to duplicating books
IPC: B41L1/24
Filed: 1952-10-01
Abstract: 724,040. Duplicating books. ABBOT (KING'S LANGLEY), Ltd., and BAKER. L. J. July 10, 1953 [Oct. 1, 1952], No. 24640/52. Class 16. A book of duplicating sets comprises a number of record sheets 11 in front of each of which there is disposed a carbon or other duplicating surface and a number of sheets 9, 10 of tear off strips without any duplicating surface between them, each of which sheets 9, 10 of tear off slips is formed with horizontal, 12, and vertical, 13, lines of perforations. The arrangement of the printing on the tear-off slips is such that the parts to be written on are staggered as between 'the sheets so as to be reproduced on different parts of the record sheet 11. As shown, on sheet 9 the top part of each slip is to be written on and on sheet 10 the bottom. In a different arrangement, suitable for invoices, the printing is arranged in a column to the right and left respectively of a writing space on the tear off slips and centrally of the record sheet. Two or more columns of tear-off strips may be provided on each sheet and a backing board may be hinged to the back of the book for insertion below any record sheet.
Patent GB-532364-A (GB)
Title: Process for the manufacture of acetyl-dl-ª‡-tocopherol
IPC: A61K31/355
Filed: 1939-08-28
Abstract: 532,364. Acetyl-dl-α-tocopherol HOFFMANN-LA ROCHE & CO., AKT.-GES., F. Aug. 28, 1939, No. 24676. Convention date, Sept. 29, 1938. [Class 2 (iii)] D1-α-Tocopherol which may be obtained by condensation of trimethyl-hydroquinone and phytol is converted into its acetyl derivative by the action of acetylating agents. In an example dl-α-tocopherol is dissolved in acetic anhydride, hydrogen is introduced and a small amount of sulphuric acid added. The solution is kept at 40‹C. for 2 hours, neutralized with sodium acetate and distilled.
Patent GB-771289-A (GB)
Title: Chrominance-signal detector
IPC: H03D1/22
Filed: 1955-08-29
Abstract: 771,289. Television. HAZELTINE CORPORATION. Aug. 29, 1955 [Aug. 31, 1954], No. 24732/55. Drawings to Specification. Class 40 (3). A synchronous detector for a colour television receiver comprises a four-section electron discharge tube each section of which is supplied with the chrominance modulated sub-carrier wave together with a different one of four-phase displaced (0, 90, 180 and 270 degrees) reference waves of sub-carrier frequency so that the output circuit of each section supplies a different one of four components of the chrominance signals, specifically, positive and negative versions of the " I " and " Q " components of the N.T.S.C. system. The (+1, - I) and (+Q, - Q) signals so derived are then employed in a matrix circuit to produce the actual component colours.
Patent GB-359107-A (GB)
Title: Improvements in and relating to cabinets for holding gramophone record discs and the like
IPC: A47B81/06
Filed: 1930-08-19
Abstract: 359,107. Cabinets for gramophone records. VALE, D., 6, Ladbroke Court, Ladbroke Gardens, Notting Hill, London. Aug. 19, 1930, No. 24769. [Class 18.] Records housed between partitions in a cabinet are ejected by strips 4 of rigid material, Fig. 3, or by tapes 4, Fig. 2, which engage the rear edge of the record and project from the front of the cabinet. The. partitions can be formed by metal strips with flanged edges 16 which are slotted to form guides for the strips 4.
Patent GB-594545-A (GB)
Title: Automatic temperature and safety control systems for gas heating apparatus
IPC: G05D23/24
Filed: 1944-12-11
Abstract: 594,545. Gas burners. MAY, P. (Robertshaw Thermostat Co.). Dec. 11, 1944, No. 24819. [Classes 75 (i) and 75 (iii)] [Also in Groups XXIX and XXXV] In an automatic safety control for gaseous fuel burners the opening of a main gas valve 14 allows gas to pass to a pilot burner 20, closes the primary circuit of a mains-energized transformer 26 and operates a lever 74 to tilt two delayed-action mercury switches 62, 64 in the transformer secondary circuit to the open position, the passage of gas to the main burner 10 being prevented by an electromagnetic or solenoid gas valve 18. The gas valve 18, a thermal resistance 34 having a positive temperature coefficient arranged adjacent the pilot burner 20, and the switch 62 form a parallel mesh in the transformer secondary circuit in series with a second parallel mesh comprising as one branch a resistance 40 also having a positive temperature coefficient, as a second branch a constant resistance 42 and a control switch 44 such as thermostatic regulator of the snap-acting type responsive to the temperature in the space heated by the main burner 10, and as a third branch the switch 64, an igniting coil 82 for the pilot burner 20, and a constant resistance 84. The valve 18 is opened when the switch 62 opens after a delay of six seconds during which time ignition of the pilot burner should have occurred. After a' further delay of 12 seconds the switch 64 opens, thereby breaking the circuit to the ignition coil 82. The current through the valve 18 is then only sufficient to maintain it open if the resistance element 34 has been heated by the pilot burner 20. When the oven or other space reaches the desired temperature the control switch 44 opens, therefore diminishing the current through the valve 18 so that it closes until contact is reestablished by the falling oven temperature. The handle 16 of the valve 14 may control the temperature by which the switch 44 operates until contact is re-estabilized by the falling oven temperature. Specification 572,130 is referred to.
Patent GB-1217274-A (GB)
Title: Improvements in the pelletisation of copper ores
Inventor: LAPPIN ROBERT LAWRENCE
IPC: C22B1/242
Filed: 1968-05-24
Abstract: 1,217,274. Pelletizing copper concentrates. HEAD WRIGHTSON & CO. Ltd. 13 May, 1969 [24 May, 1968], No. 24915/68. Heading C1A. Fluxed, hard pellets of sulphidic copper concentrates are made in a process which comprises forming a mixture of a major proportion of finely divided sulphidic copper concentrates, a minor proportion of limestone and sufficient organic residual product of the chemical separation of the cellulosic content from vegetable material to provide the pellets after drying with adequate hardness to withstand handling during transportation, preferably about 1% by dry weight, adjusting if necessary the moisture content of the mixture to give satisfactory balling, balling the mixture and drying the resulting balls or pellets. " Residual products " specified are spent sulphite liquor, or a product of high lignin content obtained therefrom, molasses, or corn syrup. The amount of limestone present is preferably 3-12% by weight. The mixture may also contain powdered coal.
Patent GB-864498-A (GB)
Title: Improvements in direction indicators for automobiles
Inventor: HAWKSWORTH FREDERICK JAMES
IPC: B60Q1/38
Filed: 1958-08-01
Abstract: 864,498. Flashing switches. ROLLS-ROYCE Ltd. July 24, 1959 [Aug. 1, 1958], No. 24950/58. Class 38 (5). [Also in Group XXXVIII] A switch used in a vehicle signalling system (see Group XXXVIII) comprises a U- shaped metal frame 8, a wire 9 connected to the end of the U frame and extension 8<SP>1</SP>, a resistance 10, contacts 11 and 11<SP>1</SP>, 15 and 15<SP>1</SP>, 11 being connected to an electromagnet 12. The springs 14, 16 urge the movable contacts 11<SP>1</SP>, 15 towards the closed position. Contacts 11 and 11<SP>1</SP> are normally kept apart by the tension in wire 9, but on passing a current through the wire it expands and the spring 14 causes the contacts to close, thus an intermittent current passes from terminal B to terminal L. Energization of the core causes contacts 15, 15<SP>1</SP> to close to complete a circuit P to a pilot lamp, the contacts being held apart, normally by the springiness of the metal frame 8.
Patent GB-628095-A (GB)
Title: Improvements relating to pit and like props
IPC: E21D15/12
Filed: 1947-09-12
Abstract: 628,095. Pit-props. STEWARTS & LLOYDS, Ltd., and SPENCER, R. W. Sept. 12, 1947, No. 25026. [Class 20(ii)] A pit-prop comprises a steel member b of tubular or other section, provided with an end fitting a in which an end piece c is welded &c. the end-piece having an oblique surface on which is seated the co-acting surface of an end cap e. The parts are retained in extended position by a locking bolt d passing through the end-piece c and engaging within a recess in the end cap, the locking bolt being under the control of a bell crank g which may be retained in operative position by a locking pin j or released and pulled by a chain &c. to withdraw the bolt and release the end cap which is coupled to the prop by a chain f.
Patent GB-189906-A (GB)
Title: Improvements in engine pistons
IPC: F02F3/02
Filed: 1921-09-21
Abstract: 189,906. Spillman, A. Sept. 21, 1921. Drawings to Specification. Processes, special.-The skirt of a trunk piston is divided by cuts into triangular flaps, the apices of which are secured by spot welding while the piston is being ground.
Patent GB-442419-A (GB)
Title: Improvements in and connected with free-wheel and variable-speed hubs for cycles
IPC: B62M9/10
Filed: 1935-09-10
Abstract: 442,419. Free - - wheel and variable - speed cycle hubs. DUBAN, M., 152, Rue du Onze Novembre, St. Etienne, Loire, France. Sept. 10, 1935, No. 25154. Convention date, Oct. 4, 1934. [Class 136 (ii)] In a cycle hub having a free-wheel device fitted with sprockets of different sizes to provide a variable gear, the free-wheel device is provided with two spaced ball bearings of different diameters. The inner member 1 of the freewheel is threaded at 2 to screw on to the cycle hub 3, and is provided with spaced ball bearings 4, 5 of different diameters. A body 7 is formed with one sprocket 14 and is threaded to receive other sprockets 13, 16, and is fitted with free-wheel pawls 10, which are acted upon by springs 11 and engage ratchet teeth on the inner member 1. In a modification, the body 7 is provided with four sprockets, one being integral and the others screwed-on.
Patent GB-1112352-A (GB)
Title: Improvements in or relating to apparatus for wrapping articles
IPC: B65B11/00
Filed: 1965-06-15
Abstract: 1,112,352. Wrapping-machines; endless conveyers. SCHWEIZERISCHE INDUSTRIEGESELLSCHAFT. 15 June, 1965 [16 June, 1964], No. 25158/65. Headings B8A and B8C. [Also in Division F2] Apparatus for partially enclosing articles in wrapper blanks, includes a conveyer feed, a member, whose operative end describes a closed curve, for pushing the articles from the conveyer between folding members displaceable along the line of feed on the conveyer, and rotatable folding and welding jaws. The articles 1 are fed on to a reciprocating support 4 by conveyer flights 3, the support extending to bridge the gap between the conveyer and the folding members 10. The operative end 6a of a push member 6, pivotally journalled to a crank 7 and a lever 8, describes a closed path 9 with each rotation of the crank. The member 6 forces an article between the members 10, which fold a blank 14 around three sides of the article. The edges 13a of a pair of rotary folders 13 engage the blank and fold it round the trailing faces of the article, forming, in one embodiment, two superimposed flaps (14a), Fig. 2 (not shown), which are welded together by heated faces of the jaws, to form a projecting fin seal. Simultaneously the plates 10 are withdrawn, along guides 11, from the conveyer, conveying the partially wrapped article to a station for completion of wrapping (not detailed). In an alternative embodiment of the jaws (13), Figs. 3, 4 (not shown), the lower jaw has a projecting portion (13c) which folds down and secures the fin seal. In a further alternative embodiment, Fig. 5 (not shown), the lower jaw serves only to fold the lower flap up, the upper jaw then folding the upper flap down and welding it to form an overlap seam. The delayed movement of the upper jaw is achieved by varying its rotational speed. A gear mechanism for achieving this (see Division F2), is described.
Patent GB-190781-A (GB)
Title: Improvements in or relating to the manufacture of "patent" or enamelled leathers and the like
IPC: C14C11/00
Filed: 1921-09-23
Abstract: 190,781. Dinsley, A., and Pulman, A. O. Sept. 23, 1921. Liquids, treating with; processes, compound. -Enamelled or patent leather, fabrics, or the like are prepared by impregnating the material with a solution which is homogeneously distributed throughout the substance of the material and which produces a flexible film on both surfaces, the film on the upper surface serving as a support for the enamel coating. The film on the lower surface may have impressed or otherwise produced therein a pattern to increase the strength of the material and facilitate the manufacture of articles therefrom. The impregnating- medium may be the substances generally employed for coating one side of the materials preparatory to enamelling, and may be applied by hand or machine or in a vacuum plant. Before impregnating, the material may be exposed to the action of X-rays, ultra-violet rays, or the rays from a mercury.vapour lamp in order to impart uniformity and a restoration of the structure partly destroyed by tanning and like processes.
Patent GB-916065-A (GB)
Title: Information bearer for recording figures that can be read either visually or by machine
Inventor: BIJLEVELD WILLEM JAN
IPC: G06V30/224
Filed: 1961-07-12
Abstract: 916,065. Characters for automatic reading. DE STAAT DER NEDERLANDEN SEN DEZE VERTEGERWOODIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN TELEGRAPHIE EN TELEFONIE. July 12, 1961 [July 15, 1960], No. 25216/61. Class 106 (1). Legible characters for machine recognition are made up of elements having code values, the value of the digit being derived, e.g. by adding, from the value of the code elements which is attributed according to a predetermined rule. In Fig. 1, the characters each have a start part S and other parts in the form of vertical strips. The other parts have values 1, 2, 4, 8 as indicated, part E, having zero value, being used as a parity check bit, making the number of bits always even. In Fig. 2, there is no start mark but five key marks are provided instead having values 4, 2, 1, 0, 7. Characters have two vertical lines registering with two of the key marks adding up to the digit value. In the case of " 0 " the lines are " 4 " and " 7." In Fig. 3, the characters are white on black, the black area providing start marks for reading from either side. The intermediate positions are valued 0, 1, 2, 3, 4 for digits 1-6 and 5, 6, 2, 3, 4 for digits 8-0. In Fig. 4, the characters comprise heavy parts in three positions in the top and bottom halves. The bottom right-hand part is a start mark and the middle bottom position is for a parity bit. The other four positions have values 1, 2, 4, 8. The bits present add up to the digit value. In Fig. 5 there are eight positions demarked by four key marks. Each character is formed to overlap the key marks of appropriate value. The three zeros on the left-hand side give a redundancy such that, not only can errors be detected, they may be corrected as well.
Patent GB-1300683-A (GB)
Title: Process and apparatus for the extraction of liquids from fibrous materials
Inventor: HAMILL THOMAS MERRY
IPC: C13B10/04
Filed: 1971-04-19
Abstract: 1300683 Extracting sugar from cane T M HAMILL 19 April 1971 [31 March 1970] 25259/71 Heading C6B [Also in Division B2] Extraction of liquids or soluble solids from a fibrous material such as sugar cane is effected by maceration of the material followed by application of a low expressing pressure which is insufficient to rupture the cells of the material, and subsequent maceration followed by application of a high expressing pressure which ruptures the cells. In the embodiments described the low pressures are applied by two-roll mills, of which the rolls may be made of stainless steel with smooth or roughened surfaces, and the high pressures by three-roll mills. As shown, cut and shredded cane is fed to a high-pressure mill 1 from which the expressed juice is withdrawn at 20, and the discharged bagasse is macerated with juice expressed by a low-pressure mill 11 before entering a low-pressure mill 10 from which the expressed juice is discharged at 22. After leaving the mill 10 the bagasse is macerated with juice exposed by a high-pressure mill 2 before entering the mill 11. The bagasse leaving the mill is then passed in succession through high-pressure mills 2, 3, 4, being macerated with juice expressed from mills 3, 4 and with water supplied at 50. In another arrangement, low-pressure mills are interpose between the high-pressure mills 2, 3, 4 and the bagasse entering the last low-pressure mill is macerated with a mixture of water and juice from the mill 4. In a modification of this arrangement the juices expressed by certain of the mills are fed back two stages so that juice expressed by one type of mill, i.e. high or low pressure, is fed to bagasse entering a mill of similar type. In a further modification the first two mills are of low pressure type and are followed by four high pressure mills.
Patent GB-1583893-A (GB)
Title: Gauging devices for use in determining whether two cylindrical surfaces are coaxially aligned
IPC: B23Q17/00
Filed: 1977-06-17
Abstract: A first sensing device (20) has a bow (25) which can be swivelled about a bolt (32) and has two sensor elements (26, 27) which are intended for bearing against a cylindrical surface, which is approximately parallel to the bolt (32), at two points which are situated remote from one another on a circumference of the surface. The position of the axis of the cylindrical surface, measured in the direction of a first coordinate axis approximately parallel to the straight line connecting the bearing points, determines the pivoting position of the bow (25), which is indicated by a first gauge (24). A second sensing device has a sensor (21) which can be displaced linearly in the direction of a second coordinate axis which is approximately perpendicular to the first coordinate axis and to the bolt (32). The position of the axis of the cylindrical surface measured in the direction of the second coordinate axis is indicated by a second gauge (22), which is actuated by this sensor (21). The measuring device serves, when mounted displaceably on a lathe parallel to the spindle axis, for aligning a workpiece axis coaxially with the spindle axis by comparing the gauge readings in the case of contact with a face plate fixed to the spindle and with the workpiece. <IMAGE>
Patent GB-802578-A (GB)
Title: An improved elastomeric floor covering
Inventor: MASON JAMES NELSON
IPC: E04F15/10
Filed: 1955-09-05
Abstract: 802,578. Floor covering. BOSTON WOVEN HOSE & RUBBER CO. Sept. 5, 1955, No. 25399/55. Drawings to Specification. Class 140. An elastomeric floor covering presenting a corrugated weaving surface comprises a base ply of elastomeric material of uniform colour which may be of rubber or a plastic and having an ornamental surface design layer thereon which includes in its pattern a multiplicity of lines corresponding in direction with the crosses of the corrugations said lines being of similar colour to the said underlying ply. As the surface design layer is worn away through usage the underlying base ply is revealed, but, due to its colour, merges with the remaining surface design and tends to obscure the wear pattern.
Patent GB-267825-A (GB)
Title: Improvements in luffing cranes
IPC: B66C23/10
Filed: 1926-10-13
Abstract: 267,825. Jardine, J. Oct. 13, 1926. Jib cranes.-To ensure approximately horizontal travel, of the load in luffing, a compensating pulley J, Fig. 1, is carried on one arm of a lever C pivoted on the frame, the other arm being connected by a link D &c. with the jib, and the load rope is led from the hoisting drum E either directly or over a sheave H to a pulley I near the jib head and then in any desired number of falls over pulleys such as J on the lever C and I, K at the jib head. If the load rope F is passed round a load block and returned to the jib-head. it may be led one or more times round additional pulleys such as I, J. In a modification of this arrangement, Fig. 2, the hoisting rope F is led from the hoisting drum either directly or over the sheave H to a pulley K at the jib head, and thence round the load sheave L and one or more times round pulleys I, J.
Patent GB-789401-A (GB)
Title: An improved diaphragm operated relay pulsator for milking machines
IPC: A01J5/12
Filed: 1955-09-06
Abstract: 789,401. Relay pulsators. SEABORNE, T. L. Aug. 21, 1956 [Sept. 6, 1955], No. 25546/55. Class 84. A relay pulsator has two diaphragms coupled together, one under the influence of pulsations from a master pulsator. The diaphragms coact with seatings to control the connection of air and vacuum alternately to the teat cup or releaser connection. The master pulsations applied at 9 operate on diaphragm 4 which descends on the pressure stroke because of vacuum applied at 14. The coupled diaphragm 5 also moves downwardly seating at 17, thus preventing ingress of air from bleed hole 10 into the teat cup line 15 but allowing vacuum connection via chambers 12 and 13. On the reverse stroke the diaphragms rise, the vacuum is cut off by seating 16 and air flows from bleed hole 10 through holes 18 in the lower diaphragm and to the teat cup line 15. Modifications are described including one in which the relay pulsations are in phase and it is suggested that both types of pulsator may be used to even the load on the vacuum line.