baber/WOPTO huggingface dataset:
Patent GB-563063-A (GB)
Title: Improvements in or relating to milling cutters
IPC: B23C5/06
Filed: 1943-04-12
Abstract: 563,063. Milling-cutters. COHEN SONS & CO., Ltd., G., and COLLING- BOURNE, W. H. April 12, 1943, No. 5853. [Class 83 (iii)] A face milling- cutter has a body which is hollow at the centre so as to form an annular rim in which cutting teeth are soldered, brazed or welded so that the cutting edges project from the plane face of the rim. The cutter comprises a body 1 having an annular rim 4 which may be formed of mild or carbon steel by turning or upset by forging, or may be cast to shape. Pockets 3 are formed in the rim in which the teeth 2 of tungsten carbide or other hard material are secured by brazing, the rim being just wide enough to receive the teeth and being cut away at 4a to provide cutting depth for the teeth. The amount cut away may extend to the full depth of the leading faces 7 of the teeth so that the latter are brazed to the rim along their faces 11, 12 only. The leading faces of the teeth are given a negative rake 6, Fig. 1, relatively to an axial plane of the cutter and a negative rake 8, Fig. 2, relatively to a radius, the angle in each case being from four degrees to ten degrees, and top and side clearance is provided at 9, 10 respectively. The cutter is stated to run at speeds of 3,000 feet per minute or over, thus giving, with a chip loading up to 0.003 inch and a tooth pitch of one inch, a work traverse up to 108 inches per minute. The brazing of replacement teeth may be effected by electric resistance methods or by a blow-pipe.
Patent GB-252470-A (GB)
Title: Improvements in or relating to fluid pressure indicators
IPC: G01L7/00
Filed: 1925-03-03
Abstract: 252,470. Paul, R. W. March 3, 1925. Elastic diaphragm pressure-gauges.-Comprises a bellows fitted with a spring device which acts to maintain constant the direction of expansion and contraction of the bellows. The component parts are mounted on a plate A and enclosed within a casing with bezel A<1> held to the plate by studs A<2> which also carry the dial. The bellows C<1>, C<2> are fixed to a block B carried by the plate A. Internal passages in the block connect the bellows with outlets. The free ends of the bellows are coupled together by rods D<1>, D<2>. Mounted on the plate of the lower bellows is an arm C<3> with a clip C' to which is attached one end of the minor axis of an elliptical bow spring E, the other end of the axis being fixed to the frame E<2> by an adjustable, angle-piece E<1>. A light chain or thread F is attached to and wrapped around the indicating spindle, which is carried freely in plates E<3>, the other end of the chain being attached to the arm C<3>. A hair spring F<3> keeps the chain taut. In gauges for comparing pressures with atmospheric pressure the bellows C<1> and attachments are omitted. The spring E may be made in two bowed parts connected at the ends. To correct readings for temperature a bimetallic strip may be used either to move the dial or to move the point at which the bow spring is attached to the frame. In the latter case the strip rocks a spindle having right and left handed threads engaging clamps to the right and left of the bracket E' and bearing on the spring, thus altering its effective length.
Patent GB-457546-A (GB)
Title: Improvements relating to the application of line gratings to photography
IPC: G03C7/10
Filed: 1935-02-23
Abstract: 457,546. Photographic plates provided with line screens. THERIAT, J., 41, Rue Billaut, La Courneuve, Seine, France. Feb. 23, 1935, No. 5887. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 26, 1935]. Drawings to Specification. [Class 98 (ii)] A photographic plate or film consists of a base of glass or celluloid, a line screen on one of the faces of the support and an emulsion applied after the line screen. The screen may be interposed between the emulsion and the support and may be of black and white or of coloured lines. It may be prepared by printing, electro-deposition, or by mechanical means. In an example, a block constructed as described in Specification 456,968, [Group XVI], consisting of groups of two projecting and one recessed element with two projecting elements at one end is used as follows. A set of lines in one colour is printed with the block, one end element is removed and a fresh set of lines printed in a different ink, the previously formed lines being covered by one set of projecting elements. The second end element is removed and printing effected in a third colour. The resulting screen may be reproduced if desired.
Patent GB-242587-A (GB)
Title: Improved rolled intermediate product for the manufacture of metal sheets
IPC: B21H8/00
Filed: 1925-03-04
Abstract: 242,587. Soc. Anon. AciÚries RÚunies de Burbach-Eich-Dudelange. Nov. 5, 1924, [Convention date]. Rolling; cross rolling. - Sheets are made by first longitudinally rolling a billet to give it a contour composed of a series of longitudinal parallel waves or thickenings, and then rolling the blank transversely to straighten it and to reduce its thickness. Various forms of undulation are shown. The intermediate product formed by the longitudinal rolling may be cut into lengths before being cross-rolled. The edges of the intermediate, product may be of rectangular section to facilitate the entry of the blank into the rolls B C, Fig. III.
Patent GB-258166-A (GB)
Title: Improvements in appliances for playing board games
IPC: A63F3/02
Filed: 1926-03-03
Abstract: 258,166. Schuster, F. March 3, 1926. Board, games.-Appliances for playing an educational game comprise a board 1, Fig. 1, having a series of depressions 2 for the reception of stop-pieces and lettered playing-pieces 6, Fig. 4. The depressions are separated by ridges 4, which are provided with notches 5 to facilitate the removal of the pieces. A compartmented container 9, Fig. 2, is provided for the reception of the pieces when not in use. The board preferablv forms a lid for the container and may be hinged thereto. In use, the players place pieces on the board to form words.
Patent GB-622023-A (GB)
Title: Improvements in or relating to devices for heating by high-frequency alternating currents
IPC: H05B6/36
Filed: 1947-03-03
Abstract: 622,023. Induction heating. PHILIPS LAMPS, Ltd. March 3, 1947, No. 6008. Convention date, April 26, 1944. [Class 39(iii)] A high frequency induction coil 1 encloses a body of conductive and non- magnetic material, e.g. copper, in two parts 2 and 3, having recesses 5 and 6. A portion 7, of a workpiece 8 on a support 11, is located in an aperture 4 between the parts 2 and 3, which are supported on pivoted links 9 and 10. The workpiece may be rotated, and the assembly which is secured to a carrier 12, may move along the longitudinal axis of the coil.
Patent GB-1504147-A (GB)
Title: Binding strap
IPC: F16L3/233
Filed: 1975-02-12
Abstract: 1504147 Bundling straps SATO GOSEI CO Ltd and TOSKA CO Ltd 12 Feb 1975 6016/75 Heading, E2B A bundling strap 1 comprises a toothed strap body 3 for passing through a hole 4 in a head portion 2 which includes a toothed tongue 5 for engaging the toothed strap, the tongue 5 being joined to the wall of the hole by a flexible junction 6 and being formed with a face 5a closely spaced from a support surface of the wall of the hole, so that the face 5a abuts the support surface (Fig. 7) an attempted removal of the toothed strap from the head. Preferably the closed spacing is provided by a slit 7 formed between the tongue and support surface on moulding the strap 1. The head may be oriented as shown or the hole 4 may run parallel to the strap and the hole may be widened at one end to make insertion of the strap easier. A slit 13, Fig. 10, may be provided to facilitate engagement of the head by the strap which is formed with a corresponding narrow leader portion 14. Reference has been directed by the comptroller to Specification 1287589.
Patent GB-306831-A (GB)
Title: Improvements in electric discharge tubes with rare gas fillings
IPC: H01J61/22
Filed: 1929-02-25
Abstract: 306,831. Lederer, A. Feb. 24, 1928, [Convention date]. Low-pressure metallic-vapour apparatus.-Discharge devices containing a rare gas or gases, at a pressure not exceeding 5 millimetres of mercury, and the vapour of an alkali metal or metals are rendered capable of operation at 110 volts or less by ensuring that the pressure of the rare gas exceeds that of the metallic vapour, which is introduced with the gaseous filling after the container has been exhausted and heated to a temperature of not less than 400' C. To maintain the required pressure of the alkali-metal vapour, the electrodes must be kept at a certain temperature which for a gas pressure of 5 Millimetres lies between 100' C. and 200‹ C., this being effected by known cooling devices. According to the invention, the pressure of gas to vapour is as 5 to 0.4 - 4, and when using a neon filling of 5 millimetres of mercury pressure, the pressure of the metal vapour, e.g. potassium, must not exceed 4 millimetres. Specifications 204,057 and 207,816 are referred to.
Patent GB-194309-A (GB)
Title: Improvements in fire-extinguishing apparatus
IPC: A62D1/00
Filed: 1923-03-02
Abstract: 194,309. Bouillon FrÞres. March 2, 1922, [Convention date]. Chemicals and substances: extincteurs or chemical fire-extinguishers. - Liquids to protect chemicals in fire-extinguishers from deterioration, chemical action, freezing &c. are of such densities that one lies above, and the other below, the liquid to be protected, the denser being itself a fire-extinguishing body. Liquids having extremely low freezing points are used. The denser may be carbon tetrachloride and the lighter, oil of sweet almonds.
Patent GB-639917-A (GB)
Title: Improvements in prefabricated concrete buildings and their method of erection
IPC: E04B2/68
Filed: 1948-02-28
Abstract: 639,917. Walls roofs ; floors ; beams ; building slabs. MARTIN, G. J. H. Feb. 28, 1948, No. 6254. [Classes 20 (iv) and 87 (i)]  A concrete wall slab for a prefabricated concrete building is provided along its upper edge with an integral beam of which only the central length, which is shorter than the upper edge, is precast around the central length of an assembly of metal reinforcement, the reinforcement protruding from the ends of the precast length and exceeding in length the clear span of the beam. In the form shown, a storey high slab 1 has an outer skin 2, framing ribs 3 and inner horizontal ribs 4 between which are positioned lightweight concrete troughs 5. Above the slab proper, beam reinforcement 8 is integrally connected to the slab by concrete 9. In assembly, the slabs are positioned with the excess length of reinforcement 8 extending into reinforcement 18 placed between the slabs for the supporting columns. After shuttering, concrete is poured to form the columns and to complete the beam as an integral connection therebetween. Thus supported, the bending moment of the beam has two points of contraflexure and the length of the precast portion 9 is calculated so that its ends coincide with these points. The slab may include a window or door opening and the outer skin may be extended as flanges (Figs. 12 and 13, not shown) to form permanent external shuttering for the in situ concrete of the beam and columns. Flat roofs and floors are constructed as shown in Fig. 10, the beam 9 and interbeams 12 being formed with piles 34 and 33, which support slabs 30 which may be lined with lightweight concrete 32. With the above construction all load stresses are taken by the beams and columns rather than by the slabs.
Patent GB-160765-A (GB)
Title: Process for the manufacture of aromatic oxyaldehydes and their derivatives
IPC: C07C45/00
Filed: 1921-02-24
Abstract: Aromatic oxyaldehydes or their derivatives are prepared by condensing a phenol or its derivatives with an ester or an ether of the hypothetical glycol CH2(OH)2 in the presence of an aromatic nitroso body and an acid condensing agent.  Examples are given of the preparation of vanillin from guaiacol, using methylal, methylene chloride, methylene diacetate, and methylene sulphate as the glycol compound.
Patent GB-176379-A (GB)
Title: Arrangement for increasing the speed of telegraphing over long lines
IPC: H04L25/02
Filed: 1922-03-03
Abstract: 176,379. Wagner, K. W., and K³pfm³ller, K. March 4, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Thermionic relays. - To increase the speed of telegraphing over long lines such as submarine cables, differentiating circuits and amplifiers are so connected and dimensioned that the effect upon the receiving- apparatus corresponds to the second or a higher differential coefficient of the curve of current at the end of the line unprovided with auxiliary arrangements. When a constant electromotive force is applied to a line, the current rises to its maximum value in the manner shown by the curve, .Fig. 1, in which current strength is plotted against time. In known apparatus, involving the use of terminal condensers, or inductance bridging tha receiving- apparatus, the effect on the receiver depends upon the rate of change of current in the line, as indicated by the curve, Fig. 4, obtained from that in Fig. 1 by differentiating with respect to time. The present invention makes the effect in the receiver depend upon the second or a higher differentiation, the corresponding timecurrent curve becoming steeper for each successive differentiation, as shown by the curves #2, #3, #4, Fig. 5, corresponding respectively with the second, third, and fourth differentiations. Amplifiers are used to compensate for loss of amplitude by differentiation, and arrangement mav be made whereby amplification occurs together with, or subsequent to, the differentiation. Fig. 7 shows an arrangement wherein the effect in the receiver s depends upon the third differentiation. K are terminal condensers at the end of the line. K<0> is a condenser, L a coil, r a resistance, and V an amplifier to which the receiver is connected. The Specification gives rules governing the relative values of the various impedances. To make the receiver actuation depend upon the second differential, condenser K‹ and resistance r are omitted. The coils L may be replaced by transformers. Arrangements are also described from which the condensers K are absent. To give simultaneous differentiation and amplification, thermionic valves in cascade are used, the coupling between the plate of one valve and the grid of the next being by means of a differentiating circuit. Fig. 10 shows a suitable arrangement, K being a condenser and r<1>, r<2> resistances. Several modified arrangements are described. In one modification, separate sources of electromotive force are provided to regulate the grid potentials.
Patent GB-312624-A (GB)
Title: A mould for drying and shaping stockings and socks
IPC: D06F59/06
Filed: 1928-02-29
Abstract: 312,624. Schulze, P. A. Feb. 29, 1928. No Patent granted (Sealing fee not paid). Drying clothes.-A portable electrically-heated drying and shaping form for stockings comprises a support a secured to a heavy base b adapted to be clamped to a table &c. In a modification, the form is attached to a wall by screws engaging with keyhole slots in plates k secured to the base. The electrical resistance i within the support is wound so as to heat the spliced portions of the stocking more intensely than the other portions.
Patent GB-224786-A (GB)
Title: Improved apparatus for use in rectifying cylinder bores
IPC: B24B5/06
Filed: 1924-03-12
Abstract: 224,786. Fornaca, G. March 12, 1924. Milling-machines; attachments for milling. - Apparatus for machining simultaneously the bores of several cylinders, for example, the four cylinders of a monoblock internalcombustion engine, comprises a frame 1 upon which is slidably mounted a carriage 2, movable vertically and counterbalanced by a weight 3. On the carriage 2 is mounted a horizontally slidable carriage 5 from which project sleeves 7 supporting the cutter spindles 8. The spindles 8 each have at their inner ends a, gear-wheel 9 meshing with pinions 10 and driven by a gear wheel 11 mounted on a shaft 12 journaled in a central sleeve 13. The sleeve 13 is secured to the head of a machine whereby it is given a motion of revolution, which is transmitted to the carriage 5 and the spindles 8. The shaft 12 also is driven and rotates the spindles 8. The distance a.part of the sleeves 7 on the carriage 5 may be adjustable. The apparatus may be fitted to an existing machine or may form a part of a specially-constructed machine; the spindles 8 may be vertical instead of horizontal.
Patent GB-1134166-A (GB)
Title: Improvements relating to amphibious motor vehicles
IPC: B60F3/00
Filed: 1967-02-10
Abstract: 1,134,166. Amphibious vehicles. DAIMLER BENZ A.G. 10 Feb., 1967 [12 Feb., 1966], No. 6528/67. Headings B7A and B7V. In an amphibious motor vehicle equipped with a main water propulsion system for propulsion when travelling on water and a frame 10 on which a supporting float or a floatable body 11 for the useful load can be mounted, the bow 12 and stern 20 being inclined at 14 and 21 at an angle to the ground level 15, the bow is provided with at least one auxiliary water propulsion drive swivellable about a vertical axis 16 for steering manoeuvres (and about a horizontal axis 18 for retracting into the bow) and the main propulsion system includes at least two main water drives 23 adapted to be individually disconnected (via clutches 25) from the power transmission 26, each being rigidly fastened on parts 30 of the frame near the stern. The main drives 23 are disposed at an angle y to the direction of travel giving a larger lever arm about the centre of gravity 5 of the vehicle (for steering purposes) than would be obtained if the drives were parallel to the direction of travel.
Patent GB-334525-A (GB)
Title: Process and apparatus for making on a great scale and by mechanical means, threads, fibres, or wadding, with regenerated cellulose
IPC: D01D5/42
Filed: 1929-02-28
Abstract: 334,525. Loozen, F. Jan. 12, 1929, [Convention date]. Void [Publislted under Sect. 91 of the Acts]. Wadding.-A cellulosic film or ribbon of great length is cut into the form of wadding suitable for spinning or wording. The film or ribbon prepared from a solution of viscose, cellulose acetate &c., after drying, if preferably wound into a coil having multiple layers upon a mandrel, and the end face of the coil then cut by one or more revolving blades, the coil or the blades or both being caused to advance towards each other. The coil may be caused to rotate in the opposite direction to the blades, or the latter may be stationary. According to Fig. 1, the film 5 wound upon a mandrel 4 is cut into spiral threads when it is advanced by means of the threaded rod 2 against four knives 7 radially mounted upon a revolving disc 8. In Fig. 5, the knives 12 are secured to a rotating cylinder 13. A sharp rotating disc may. also be used for cutting the cellulosic film or ribbon.
Patent GB-833840-A (GB)
Title: Improvements in separation of niobium from tantalum
IPC: C22B34/24
Filed: 1958-02-28
Abstract: Niobium and tantalum are separately recovered from oxidic materials containing their oxides by mixing the material with a fluoride selected from the group alkali-metal and ammonium bifluorides, mixtures of said bifluorides, and mixtures of at least one of said bifluorides with alkali-metal normal fluorides, and heating to above the melting-point of the bifluoride constituent and preferably not above 900 DEG  C.  The niobium and tantalum are thereby converted to complex fluorides, of which the tantalum complex fluoride has a lower solubility.  The niobium complex fluoride is recovered by extraction with an aqueous medium.  The aqueous medium preferably has a pH between 2 and 3. Between 2 and 10 parts by weight of the bifluoride should be employed for each part of the oxidic material.  A preferred mixture is 3 parts of KHF2 for each part of the oxidic material.  The niobium complex fluoride may be purified by crystallization.  The tantalum may be recovered from the residue in known manner.
Patent GB-296951-A (GB)
Title: Improvements in or relating to paving and paving blocks
IPC: E01C5/18
Filed: 1928-03-02
Abstract: 296,951. Jackson, L. Mellersh-, (Clapp Rubber Co., E. H.). March 2, 1928. Segmental and block paving. - A pavement or roadway has a tread surface composed substantially of the exposed edges of layers r, f of rubber and fabric compressed together in face to face relation. A plurality of layers r, f may be secured together to form a block by bolts 3 and nuts 4. Units T comprising a layer of rubber and an adjacent layer of fabric may be obtained from the discarded shoes of motor tyres, and after dipping in cementitious material and threading on tie-rods 3 such units are inserted in a form 14, Fig. 7, where they are compressed by a press 15. The corner angles 17 of the frame are pivotally mounted. Clips are provided to hold the block in compressed condition, and the nuts 4 are screwed on the bolts 3. Angle-irons 5 threaded on the rods 3 are adapted to anchor the blocks to the cement or other base.
Patent GB-575906-A (GB)
Title: Improvements relating to fuel injectors for internal combustion engines
IPC: F02M61/10
Filed: 1944-04-11
Abstract: 575,906. Fuel injectors. LAGONDA, Ltd., (formerly WYNDHAM HEWITT, Ltd.), COBB, W. R., and GREEN, G. W. A. April 11, 1944, No. 6661. [Class 7 (iii)] A fuel injector of the kind having a differential needle valve 6 resiliently biassed to its seat 5, is provided with a sealing bush 15 of deformable oil resisting material such as synthetic rubber arranged to permit the periodical displacement of the valve from its seat under the pressure of the fuel supply. In some cases the sealing bush may be adhesively bonded to both the stem of the needle valve and the interior surface of the guide sleeve 7. It can also be arranged that the sealing bush performs the functions of the loading or biassing spring 13. The upper end of the bush is then closed, Fig. 4, also the guide sleeve is closed at its upper end and encases the closed upper end of the sealing bush.
Patent GB-340175-A (GB)
Title: Improved mechanism for actuating the type-bars of typewriting machines
IPC: B41J7/02
Filed: 1930-02-28
Abstract: 340,175. Wade, H., (Electromatic Typewriters, Inc.). Feb. 28, 1930. Type-lever actions.-A toggle, for actuating a type-lever 4, Fig. 1, and preventing rebound thereof, consists of an arm 8 pivoted to a segment 10, and an arm 7 pivoted to a depending heel 20 on the type-lever, a depending part 21 of the arm 7 being connected to actuating- linkage, for instance link 11, bell-crank 12, and link 14 actuated manually or by power. The toggle, is normally extended by a spring 15, stops 17, 19 preventing overthrow. In case-shift machines, the segment 10 and type-lever segment 6 can be depressed for upper-case work, the link 11 moving idly into such a position relatively to the ben-crank 12 that upper-case characters are impressed with slightly greater force than lowercase characters.