baber/WOPTO huggingface dataset:
Patent GB-637761-A (GB)
Title: Process for preparing benzene hexachlorides
IPC: C07C17/02
Filed: 1948-01-14
Abstract: Benzene hexachlorides free from substitution products are obtained by treating benzene with chlorine gas in the presence of light at a temperature between the crystallization temperature of pure benzene and of solidification of benzene in the benzene solution of benzene hexachlorides thus obtained.  Advantageously the operation is started at the crystallization temperature of benzene and the temperature lowered as the concentration of hexachlorides increases.  The products have insecticidal properties.  In examples: (1) benzene is chlorinated in an atmosphere of carbon dioxide in the presence of light from a mercury vapour lamp, chlorine being added at the rate of one mol. per hour, and the temperature is gradually lowered from 6 DEG  to 1 DEG  C., the hexachlorides being obtained by filtering and removing benzene by steam distillation; in (2) the solution obtained in (1) is filtered and the filtrate rechlorinated, the process being repeated a number of times, the temperature of chlorination being successively lowered, that of the final batch being - 8 DEG  C.; and in (3) a saturated solution of a , b  and g  isomers of benzene hexachloride in benzene at - 8 DEG  C. is brought to - 4 DEG  C. and purified benzene and chlorine added in stoichiometric amounts to keep the solution saturated with respect to the above isomers at - 8 DEG C., a portion of the solution is continuously withdrawn at - 4 DEG C., cooled to - 8 DEG  C., and the crystals deposited are filtered off, the filtrate being returned to the chlorinator, the chlorine used contains 10 per cent nitrogen to provide an oxygen-free atmosphere.
Patent GB-1456837-A (GB)
Title: Sealing devices for rotary piston internal combustion engines
IPC: C04B35/597
Filed: 1973-01-09
Abstract: 1456837 Sintered silicon aluminium oxynitride seals LUCAS INDUSTRIES Ltd 5 April 1974 [9 Jan 1973] 1207/73 Heading C7D The rubbing surface of a sealing strip for a rotary internal combustion engine comprises a ceramic material containing at least 90% volume of single phase silicon aluminium oxynitride. The ceramic may be produced by hot pressing a compacted powder mixture of Si 3  N 4  and Al 2  O 3  or Si 3  N 4 , A1N and SiO 2  in a graphite die at 1750-1775‹C using. The compacted powder mixture may be packed in BN powder in the die and after hot pressing the BN is removed by machining. Alternatively a Si 3  N 4  strip may be coated with Al 2 O 3 , a mixture of Si 3  N 4  and Al 2 O 3  or silicon aluminium oxynitride powders and hot pressed to form a surface layer of the oxynitride.
Patent GB-1372322-A (GB)
Title: Space heater for heating buildings by radiation and convection
IPC: F24D19/04
Filed: 1972-01-11
Abstract: 1372322 Space heating apparatus IMI RANGE Ltd 27 Dec 1972 [11 Jan 1972] 1232/72 Heading F4S A space heater heating by radiation from a front plate 1 and by convection comprises a convection air heating chamber 6 at least the front wall of which is defined by the plate 1 which is in heat conducting engagement with a tube 14 carrying a heating fluid, the arrangement also including fins 15 in the chamber 6, in heat conducting engagement with the tube, the fins. being slotted at 18 at least at one edge to receive the tube and the tube being secured to the fin by deformation of its circular crosssection into the slots 18 in the fin edge as shown in Fig. 3. The chamber 6 is shown as defined by two heat conducting plates 1, 2 each with a heatconveying sinuous-tube portion in contact therewith. The heater has a wooden surround 3, 4 and the plate 2 is spaced from the rear surface 5. of the surround so forming with an adjacent building wall (not shown) a second convection air heating chamber 7. Air enters the chambers 6, 7 at inlet zones 8 and both chambers discharge their heated air to a louvre arrangement 9 at the top front of the heater. Other heat conducting fins 10 extend from plate 2 into chamber 7. A flat face 20 formed on the tube is aligned with the fin edge 21. In use, the plates 1, 2 are arranged to be readily detached from the heat exchange assembly 14, 15. The fin/tube assembly rests in L-shaped brackets 26 on the plate 2 which are shaped to hold the assembly in contact with the plate 2; and the front plate 1 is similarly held to the fin/tube assembly by L- shaped brackets 30 attached to the plate 1. 23 is an air bleed for the tubes 14.
Patent GB-825705-A (GB)
Title: Improvements in tube forming methods and apparatus
IPC: C21D7/12
Filed: 1956-01-13
Abstract: 825,705. Making tubes; bending; stamping. FLEXONICS CORPORATION. Jan. 13, 1956 [Jan. 13, 1955], No. 1290/56. Classes 83 (2) and 83 (4). A tube of a metal such as stainless steel which when stretched work hardens more rapidly than it thins is hardened by applying internal fluid pressure while the exterior is substantially unconfined. A stainless steel strip is drawn through a skelping die and then through apparatus for welding the preferably butted edges by a carriage 80 pulled along rails 60 by means of a pin 92 which can be lowered between the links of an endless chain 62 driven from a motor 78. The welding apparatus comprises a welding rod 56 and a mandrel 48 within the tube acting as a second electrode. When a length of tubing has been completed it is cut off by a hack saw and transferred to the stretching apparatus. This comprises a horizontal framework having two similar carriages 130, 184 each containing a tube end clamping device. One such device, 132, comprises a header 134 through which passes a hollow cylinder 166 with a head 168 between which and the header is a rubber ring 174. The end of the tube is clamped over a part of the header, the ring and the head 168 by a two-part clamp comprising semi-circular members 146, 148, Fig. 9, having internal annular grooves 154 and being movable together by a screw 160 and hand wheel 162. By applying hydraulic fluid to a cylinder 182, the head 168 is pressed towards the header 134 thus expanding the rubber ring 174 so as to press part of the tube into the grooves 154. The carriage 184 is normally fixed to the machine frame by pins 198, 200 while the carriage 130 is connected to a piston 126 in an hydraulic cylinder 124. After the tube has been placed in the clamps 132 pumps are operated to supply pressure fluid to the cylinders 182 to compress and expand the rings 174 and to the cylinder 124 to exert a longitudinal stretching force on the tube. Another pump supplies water under pressure into the tube through pipes 190 and 246, air escaping through pipe 170 and the hollow cylinder 166. The expansion of the tube continues until its walls engage and actuate a microswitch contained in a calibrator 216 placed around the tube near one end.
Patent GB-555095-A (GB)
Title: Improvements in or relating to machines for applying caps to containers
IPC: B67B3/20
Filed: 1942-01-30
Abstract: 555,095 Capping containers. CARTNER, J., HUXLEY, J. H., and OLDFIELD, E. Jan. 30, 1942, No. 1315. [Class 125 (ii)] In a machine for applying caps to containers comprising reciprocating means which first lowers the capping head 17 on to the cap and this enforces a rotary motion to the cap of a predetermined extent, the head is mounted on a shaft 8 supported in a sleeve 7 by an abutment 18 which is carried by the shaft and lies across the upper end of the sleeve; the sleeve is mounted in a bearing member 6 and the abutment is normally located above the end of the member 6 a distance equal to the extent of the downward movement of the shaft required to bring the head to its operative position, after which the abutment engages the bearing and the sleeve descends relatively to the shaft to give the latter the required rotation and, for this purpose, the shaft 8 may have cam slot or helical recess 23 engaged by a pin 22 in a collar 16 connected to the lower end of the sleeve. The extent of the rotation of the head may be varied by disengaging the collar 16 from the shaft and replacing the shaft and head by another having a different form of helical recess. The pin 22 is slightly smaller than the recess or slot 23 to provide sufficient lost motion at the beginning of the raising of the head so that the latter is disengaged from the cap A before reverse rotation of the head occurs. The head is raised and lowered by toggles 12, 14 jointed at each side of the head to pin 15 extending from the collar 16 and to a pin 10 journaled in ears 9 extending from the member 6, the links 12 of the toggle extending beyond the pin 10 and being connected to the short arm 11b of a bell-crank lever by a pin 13; the other arm 11a of the bell-crank lever may be extended to form a hand-lever for manual operation of the head or it may be connected by a link 21 to a foot-operated treadle. The container B may have a shoulder B' engaged by a stripper plate 24 on the bed plate 1 of the machine to prevent upward movement of the container and a rubber pad 25 may be provided on the bed to prevent rotation, of the container.
Patent GB-894092-A (GB)
Title: Improvements in or relating to plate bending machines
Inventor: SAVORY FREDERICK RALPH
IPC: B21D5/14
Filed: 1960-01-14
Abstract: 894,092. Curving. STEEL CONSTRUCTION & ENGINEERING CO. (NOTTS) Ltd. Jan. 13, 1961 [Jan. 14, 1960], No. 1344/60. Class 83 (4). A three-roll bending machine has the roll around which a sheet is to be bent to form a tube backed by a parallel shaft having non-rotatably mounted thereon a pair of brackets, each carrying a pair of backing rollers to bear on the roll just beyond the ends of the tube to be formed. A plate 35 is fed by a driven bottom roll 5 in co-operation with an upper roll 29A, driven from the roll 5, against a driven roll 6 and is curved around the upper roll 29A to form a tube 34A. The upper roll 29A is backed, beyond the ends of the tube 34A, by pairs of rolls 44 each pair being carried by a bracket 41 adjustable longitudinally, but not rotatably, on a stiff fixed shaft 40 parallel to the roll 29A. To remove a formed tube from the roll 29A a housing member 24 is first swung away from a spigot 50 on an adapter arm 38 in which one end of each of the shaft 40 and roll 29A is mounted. Screw-down gear 33 is then operated to swing the shaft 40 and roll 29A up about a transverse axis 23 so that the arm 38 may be then removed for endwise withdrawal of the formed tube 34A.
Patent GB-268469-A (GB)
Title: Improvements in machines for harvesting sugar cane
IPC: A01D45/10
Filed: 1926-01-18
Abstract: 268,469. Davidson, A. M. G. Jan. 18, 1926. No Patent granted (Sealing fee not paid). Sugar - cane cutting machines. - The canes are gathered together for presentation to the hacking cutter 15 by one or more pairs of converging endless belts 13, 14, the belts 13 extending slightly behind the belts 14 so that the cut cane falls transversely of the machine on to an endless belt conveyer 4 driven by a roller 5 from one of the main wheels 1 of the machine. A set of belts 13, 14, is preferably arranged on each side of the machine so that the machine may operate up and down one side of a plantation. The cutter 15 is reciprocated by an eccentric 16. The cutter cane is gripped at each end in succession by gripping belts 20, 21, while the free portions are brushed or scraped by washers 22. A brush 30 at the rear of the washers forces the cane against a side guard board 35 in position for a rotary knife 37 to cut the tops, the can then dropping into a rotary hopper 38 that is intermittently rotated to discharge it in bundles. The knife 37 is moved to that side of the machine on which the cane is being cut. The machine may be self-propelled and may be mounted on wheels or on endless chain tracks.
Patent GB-323655-A (GB)
Title: Improvements in or relating to conveyors, particularly for use in coal mining
IPC: B65G23/44
Filed: 1929-01-15
Abstract: 323,655. British Jeffrey-Diamond, Ltd., and Lithgoe, J. Jan. 15, 1929. Tensioning belts. - In endless-belt conveyers for use in coal mining wherein the tail-end portion B is associated telescopically with the stationary intermediate portion A, the part B is moved with respect to the part A to tension the belt C by flexible members I. Each rope I is secured at J to the outer end of the part A and is passed round a pulley K.mounted on the part B to a winding drum L also mounted on the part B. The drums L are mounted on a shaft M having pawl-and-ratchet mechanism 0, P for holding it in position.
Patent GB-1463986-A (GB)
Title: Radio transmitter detection apparatus
IPC: H04K3/00
Filed: 1974-01-11
Abstract: 1463986 Detecting presence of radio transmitter S RISBERG 11 Jan 1974 01508/74 Heading H4L Apparatus for detecting the presence of a radio transmitter and microphone (e.g. a bugging device) comprises (a) a frequency generator connected to a loudspeaker or ultrasound transducer and (b) a wideband or tunable radio receiver having a low-frequency stage including at least one narrow band filter for passing signals of the frequency supplied by the frequency generator to an indicator. A pulse duration discriminator may be connected between the filter and indicator so that only pulses having a longer duration than those caused by speech or music are passed. The audio-frequency generator may be arranged to produce two different frequencies which are selected by a pair of filters at the receiver and supplied via an AND gate to the indicator. Alternatively the filter may be arranged to pass the difference between the two frequencies. The local oscillator of the receiver may have a sawtooth shaped frequency modulation.
Patent GB-671559-A (GB)
Title: Improvements in apparatus for controlling the flow of small quantities of liquid
Inventor: TURNER WILLIAM ALSTON
IPC: G05D7/01
Filed: 1950-01-20
Abstract: 671,559. Regulating fluid flow. PERMUTIT CO., Ltd. Dec. 7, 1950 [Jan. 20, 1950], No. 1615/50. Class 135. Consists of a method and apparatus for controlling a small flow of liquid, particularly for dosing a main liquid stream, in which the liquid is supplied under a static head through a column of liquid of different density and the rate of flow is varied by adjusting the vertical distance between the points at which the flowing liquid enters and leaves the second liquid. Thus, e.g. sodium hypochlorite leaves a vessel 2, to which air is admitted through a pipe 4, under a constant head and passes to an inlet 18 below the surface 20 of a denser liquid, e.g. carbon tetrachloride, in a test tube 10, and leaves by a pipe 16 to an outlet 24 (not shown). The flow is adjusted by varying the depth of the lower end of the inlet 18 below the surface 20 by pivoting the tube about the point 12, by sliding the tube 18 through the test tube bung 14, by placing an adjustable bellows in the second liquid, or by adjusting the height of or forcing a plunger into a reservoir connected to the vessel containing the second liquid. The flow may be controlled automatically in accordance with the flow of the main stream. The apparatus may be inverted and used with a less dense liquid.
Patent GB-429897-A (GB)
Title: Improvements in and relating to gas heating stoves
IPC: F24C15/36
Filed: 1935-01-17
Abstract: 429,897. Gas radiator-stoves. JUNKERS & CO., GES., 35, Junkerstrasse, Dessau, Anhalt, Germany. Jan. 17, 1935, No. 1622. Convention date, Jan. 20, 1934. [Class 126] In a gas-heated radiator 1, 2, contact with the heated wall 1 is prevented by a perforated screen, such as a plurality of laminar bars 14 or a grating, carried in a frame 3 which is attached to the radiator, its upper marginal edge 4 projecting forwardly in such a manner that the current of warm air rising from the heated wall 1 is diverted through the screen into the room to be heated. The lateral edges of the frame form grooves continuous with the upper rim 6, and slide over the edges of the assembled walls 1, 2 of the radiator. Openings 16 may be provided at the bottom of the frame 3. The hot gases from the burner 12 pass between the plates 1, 2, through the aperture 13, to the flue 10, which is open at the bottom. The surface of the wall 1 is dark to facilitate heat radiation.
Patent GB-1377520-A (GB)
Title: Phototropic alkali borate glass containing silver halides
IPC: C03C4/06
Filed: 1972-01-13
Abstract: 1377520 Phototropic glass JENA GLASWERK SCHOTT & GEN VEB 13 Jan 1972 1636/72 Heading C1M [Also in Division C4] A phototropic glass consists of in percentage by weight B 2 O 3  30-94; SiO 2  0À5-40; R<SP>1</SP> 2 O 2-30; R<SP>11</SP>O 1-20; Al 2 O 3  1-20; ZrO 2  1-10; CuO 0À001-0À05; and AgX 0À01 to 1À0 where R<SP>1</SP> is K and/or Ha and/or Ti, R<SP>11</SP> is Ba and/or Ca and/or Sr and/or Mg and X is Cl, Br or I.
Patent GB-304468-A (GB)
Title: Improvements in tiles for fireplaces, walls, and the like and in the manufacture of the same
IPC: F24B1/198
Filed: 1928-01-18
Abstract: 304,468. Ashworth, J. H., and Woods Tileries (Hanley), Ltd. Jan. 18, 1928. Pressing plungers and dies. - Tiles for fireplaces, walls, &c. having undercut locking recesses of substantial depth are moulded by the use of a detachable metal plate having a bevelled edge or edges which is placed upon the clay dust in the mould and is pressed with the clay to form the tile, each plate being slid endwise from the tile to leave an undercut recess. As shown, applied to a bullnose tile, the mould W, Fig. 3, fitted with a bottom plunger X, is charged with clay. dust a and bevelled end plates P, P<2> are placed upon the clay as indicated. Pressure is applied by a top die and after ejection of the tile by the die X the plates P, P<2> are slid endwise leaving undercut recesses R, S, Fig. 5, in the tile T. The plate P, Fig 6, is preferably made of brass and is formed with a bevelled edge and with a small recess P<1> for engagement by a thumb nail. The plates may be arranged at an angle to the side of the mould or to each other and may be smeared with oil to facilitate separation from the tile.
Patent GB-1021192-A (GB)
Title: Process for printing fibrous textile materials with reactive dyestuffs
IPC: D06P3/66
Filed: 1963-01-14
Abstract: Textile materials are printed with reactive dyes by applying thickened dye paste, drying, and then spraying with a solution containing an acid binding agent or a reaction promoting agent such that the amount of solution sprayed is less than 30% by weight of the material.  The colour is then developed by heat treatment.  The thickened dye pastes may contain both acid binding agents and a reaction promoting agent or only one of these reagents or neither. The solution used for spraying contains reagents in the required amounts to bring about fixation of the dyestuff in the material.  The reactive dyes used are water soluble, tertiary amines and hydrazines are used as reaction promoting agents.  Preferably aqueous solutions of weak to strong alkaline reagents are used as acid binding agents especially alkali carbonates, borates, phosphates and hydroxides. The final heat treatment may be wet or dry.
Patent GB-1501751-A (GB)
Title: Controlled cooling of hot-rolling mill products
IPC: B21B1/26
Filed: 1975-01-15
Abstract: 1501751 Cooling rolled products INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 15 Jan 1975 [25 Jan 1974] 1667/75 Heading B3M [Also in Division C7] Steel leaving a hot-rolling mill and traversing a forced cooling zone is monitored by one or more magnetic detectors which determine whether the steel has undergone allotropic transformation. Cooling conditions are consequently adjusted to maintain the relationship of the location at which transformation occurs to the location of the detectors. Preferably an additional detector is located at a point where the steel is always in the gamma-phase, so that a differential signal can be obtained from the two detectors. In an additional feature, an array of detectors is located transversely across the path of the rolled product to uniformity of transformation in that direction.
Patent GB-362734-A (GB)
Title: Improvements in tins or containers for comestibles
IPC: B65D25/04
Filed: 1931-01-19
Abstract: 362,734. Piston apparatus for discharging receptacles. SAVAGE, D. C., 367, Maroubra Bay Road, Maroubra, New South Wales, Australia. Jan. 19, 1931, No. 1760. [Class 102 (ii).] A tin for comestibles includes a slidable flanged disc 2 dividing the tin into separate compartments, and operated by wires 4 provided with handles. The disc may be made of glass, metal, celluloid, or fibre board dipped in paraffin, and may be sealed by painting liquid paraffin &c. round the flange. The wires 4 may be replaced by a single wire slidable through the disc.
Patent GB-400036-A (GB)
Title: Improved x-ray device particularly for dental purposes
IPC: G02B23/10
Filed: 1933-01-19
Abstract: 400,036. R÷ntgen-ray apparatus. MULLER AKT.-GES., C. H. F., 24, R÷ntgenstrasse, Hamburg, Germany. Jan. 19, 1933, No. 1808. Convention date, Feb. 2, 1932. [Class 98 (i).] Apparatus more particularly for dental use comprises a ray-tube having a neck portion extending normally to the axis of the tube and containing the cathode, the rays being limited to an axially-emerging cone, and a metal housing surrounding the anode portion of the tube, the tube and housing being pivotally secured to a support so that the pivotal axis coincides with the axis of the neck. As shown, the tube comprises perpendicularlydisposed glass anode and cathode parts 2, 4 respectively, joined by a wall 3, preferably of metal, surrounding the discharge space. The anode part 2 is surrounded by a metal hood 5 having a hemispherical part 6 surrounding the anode terminal. The apparatus is suspended from the arm 8 of a stand in a fork 7 pivotally supporting on one side the cathode part 4 of the tube and on the other side a metal tube 9 which is co-axial with the part 4 and is secured as by a clasp 10 to the part 3 of the ray-tube. The pivotal axis extends at right angles to the axis of the cone of rays emerging through the applicator 20, and preferably passes through the focal spot or nearly so. The anode supply is led in by a metal-covered flexible cable passing through the tube 9 and bent upwards at 11 where it is attached to a rigid lead-in portion 15 in the wall of the hood 5, coupling the cable to the anode terminal at 19. The metal cover of the cable is connected to the metal hood 5 through the connecting screwcap 18. To counterbalance the weight of the hoods 5, 6, the applicator 20 may be loaded with lead so disposed as not to interfere with the passage of the rays.
Patent GB-696814-A (GB)
Title: Improvements in or relating to non-slipping devices for horseshoes
IPC: A01L7/04
Filed: 1950-01-24
Abstract: 696,814. Horseshoes. EISNER, P. J. S. Jan. 10, 1951 [Jan 24, 1950], No. 1843/50. Class 67 A calk for horseshoes  comprises a tapered hard metal stud 3, e.g. of tungsten carbide, inserted in the tapered bore 2 of a steel holder 1 which has a correspondingly tapered exterior surface and may be round, square or polygonal in cross-section. As shown in Fig. 2, the stud may engage a shoulder provided in the bore. Alternatively, the bore may extend only partially, into the holder, Fig. 6, with the stud either recessed as shown or projecting from the holder. In order to facilitate force fitting of the calk into a shoe, the outer surfaces of the pin and holder may be sealed by solder or the holder burred over the pin. Specification 480,147 is referred to.