baber/WOPTO huggingface dataset:
Patent GB-518979-A (GB)
Title: Improvements in or relating to tuning devices for radio receivers and the like
IPC: H03J1/04
Filed: 1938-09-10
Abstract: 518,979. Tuning-adjustment devices for radio apparatus. GENERAL ELECTRIC CO., Ltd., ROSE W. R., CLARK, F., and FORBES, A. D. Sept. 10, 1938, Nos. 26447/38 and 369/39. [Class 37] In a slow-motion drive suitable for adjusting the tuning of radio sets, wave meters, and the like, cylinders mounted upon the manuallyoperated member and co-operating with a fixed screw-thread indicate the number of times the scale covered by the manually controlled member has been passed through. The finger-plate 1 is carried by the outer portion 4 of a ballrace 6, the inner portion of which is formed on the collar 14 which is secured to the shaft 17 driving the condenser or other device. Two planetwheels 10, 11 are mounted on the plate 3, which is integral with the finger-plate, and co-operate with a fixed gear 13 and a free gear 15 which is fixed to the collar 14. The gears 13 and 15 are of the same diameter but one has fewer teeth than the other which results in a slow rotation of the collar 14 and shaft relative to the frame 19. The gear 11 is split and spring-loaded to prevent backlash. Five marks 24 at equal intervals round the circumference of the fingerplate co-operate with a scale 22 on the outer case 23 of the drive. Five indicating cylinders 25, carried by members 27 below slots 26 in the finger-plate are provided with toothed-wheels 29 engaging a thread 30 formed on the inside of case 23. As each mark 24 comes to the scale 22, the cylinder indicates a number in the associated slot, the position of the tuning device being given by a combination of the reading in the scale 22 and the reading on the cylinder immediately below the scale..A shield fixed to the case may be arranged under or over the finger-plate so as to mark all but the required cylinder. To facilitate rapid movement by spinning the finget-plate, a heavy disc 33 is mounted on the outer portion of the ballrace and is held frictionally by springs 34. To prevent over-driving of the tuning device, a stop is provided which may consist of an arm 36 clamped to the spindle 17 and moving between stops 37, the action being cushioned by outwardly-bent flat springs situated one on each side of the arm. An alternative stop, Fig. 3 (not shown) consists of a pin which is forced into the path of a rotating arm connected to the finger-plate, by a cam-plate fastened to the spindle 17.
Patent GB-204530-A (GB)
Title: Improvements in lappets for ring spinning frames and the like
IPC: D01H13/04
Filed: 1922-10-02
Abstract: 204,530. Birchall, W. Oct. 2, 1922. Thread - guides. - Lappets are formed with projections A, shown in plan in Fig. 1, between which the part B of the thread guide wire is secured by a bolt. The bottom of the lappet is open and it is hinged in the ordinary manner.
Patent GB-734395-A (GB)
Title: Purification of crude anthracene
IPC: C07C7/00
Filed: 1953-09-28
Abstract: Anthracene is recovered from coal tar crudes containing 24 to 45 per cent anthracene by extracting the impurities therefrom with an aliphatic solvent selected from alkanols, ketones and glycols having 1 to 4, 3 to 7 and 2 to 6 carbon atoms respectively, at a temperature ranging from 20 DEG  to 35 DEG  C., filtering and drying the extracted crude, and subjecting it to a fractional distillation at a pressure of 100 to 600 mm. and an overhead temperature of 250 DEG  to 330 DEG  C.  Examples of suitable solvents which remove phenanthrene, fluorene and carbazole are given, the preferred solvents being acetone and methylethyl ketone, which may contain 5-20 per cent water, and diethylene glycol.  The extracted crude may be dried by heating at temperatures ranging from 55 DEG  to 295 DEG  C. or by any conventional means.  To achieve 98 per cent purity, a minimum number of 10 to 50 of theoretical plates and a minimum reflux ratio of 2 to 3 are required in the distillation step. Preferably, a column having 50 theoretical plates is used at a pressure of 100 to 600 mm., a pot temperature of 265 DEG  to 360 DEG  C. and an overhead temperature of 250 DEG  to 330 DEG  C.  A single stage, multi-stage or continuous process may be used with concurrent flow.  Higher purity and recovery is obtained with multi-stage countercurrent equipment.  The presence of up to 20 per cent of water in the solvent gives improved recovery of anthracene without appreciable lowering of purity.  Examples are given in which the solvents used are (1) acetone, (2) methylethyl ketone containing 10 per cent of water, and (3) acetone containing 4 to 5 per cent of water.
Patent GB-391454-A (GB)
Title: Improvements in or relating to apparatus for cleaning or degreasing materials
IPC: C23G5/04
Filed: 1931-09-24
Abstract: <PICT:0391454/III/1> In apparatus for cleaning or degreasing metal or other articles the articles are moved upwards through hot or cold liquid solvent, hot solvent vapour, a shower of liquid solvent, or a succession of two or more of these, by a screw-conveyer arranged between and connected to concentric inclined cylinders.  For example, the articles are fed to a hopper 15, slide down an inner perforated cylinder 11, fall into an outer perforated or wire gauze cylinder 8, and are lifted in the annular space between the cylinders by a perforated screw-conveyer 10 to a discharge chute 16.  A casing 1 contains liquid trichlorethylene to the level of an overflow 17; solvent vapour is supplied from a vaporizer 19; and a shower of solvent is obtained and escape of vapour prevented by cooling coils 20; the solvent returns to the vaporizer direct or through the overflow 17 and a pipe 21.  Cooling or heating coils 22 are provided in the liquid solvent; fresh solvent is added as required through a funnel 23, and foul solvent is withdrawn through a valve 24.  Baffles or fins may be provided on the casing 1 or/and the cylinder 8 to separate the liquid and vapour spaces.
Patent GB-857606-A (GB)
Title: Device for drawing fibres
IPC: D01H5/74
Filed: 1957-08-23
Abstract: 857,606. Drawing rollers. KONIG, O. Aug. 23, 1957, No. 26680/57. Class 120(2). [Also in Group XIII] A top drawing roller comprises a flexible, substantially cylindrical jacket 90 and a pressure roller 85 of smaller diameter located within the jacket in a position offset from the jacket axis, guide means being provided within the jacket for locating roller 85 relative to a lower drawing roller 12. Jacket 90 is fixed in grooves in discs 88, 89 rotatably mounted on an axle 72 engaged by a loading and guide arm 70. Roller 85 is located by two cage frames 101, 102 fixed to axle 72 and bears against an annular flange 84 on a ball bearing 83 mounted on axle 72. Roller 85 presses against the lower drawing roller 12, through jacket 90, along a line 95 located forwardly of the plane a-a joining the axes of axle 72 and roller 12. A supporting roller 110, also located by frames 101, 102, maintains the contact between jacket 90 and roller 12 back to a line 93. The position of clamping line 95 is adjustable by adjusting the position of axle 72 relative to guide arm 70. As modifications, cages 101, 102 may locate rollers 85, 110 radially, flange 84 being dispensed with, and the cages may be extended to house a number of additional jacket-supporting rollers located around the wire periphery of the jacket, also, disc 89 may serve merely to seal the jacket; its mounting on the end of axle 72 being eliminated, or it may be made of one piece with the jacket. Lubricant may be provided within the jacket, disc 88 providing a lubricant seal.
Patent GB-599297-A (GB)
Title: Improvements in holders for tubular lamps
IPC: H01R33/08
Filed: 1945-10-15
Abstract: 599,297. Lamp-caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 15, 1945, No. 26873. Convention date, Oct. 23, 1944. [Class 38 (i)]. A holder for a tubular lamp comprises a base 7 having an open-ended housing 8 in which is slidably mounted a spring-loaded carrier 11 with a lamp-engaging contact 16 in a recess 15. The lamp 1 has a cap 3 with an insulating projection 4 which has a bore to shield the lamp contact 6. When the lamp is inserted in the holder, the contact 16 enters the cap bore to abut the contact 6 and the carrier is moved against a spring 13 to complete the circuit at 17 through a contact spring 21 in a chamber 19 in the base. When the lamp is removed, the circuit is broken by the spring 21 being separated from the carrier by a flange 25. The holder is suitable for series-connected lamps. Adjacent holders may be connected by jumpers or may be formed back-to-back in one piece.
Patent GB-674338-A (GB)
Title: Improvements in light-spotting devices for display purposes
IPC: G09G3/00
Filed: 1949-10-20
Abstract: 674,338. Changing signs. DAVIS ADVERTISING SERVICE, Ltd., and DAVIS, B. Oct. 2, 1950 [Oct. 20, 1949], No. 26933/49. Class 3(i) [Also in Group XV] A display device comprises an information carrying sheet supported by a front panel in an outer framework which sheet is backed by a thick sheet of material 12 having apertures 14 corresponding to selected areas of the information carrying sheet, each aperture 14 having a counter-bore at the side remote from the front sheet in each of which illuminating means 11 extends, the illuminating means being secured in a backing sheet 10 of electrically' conducting material disposed adjacent the counter-bores, means being provided for selectively operating the illuminating. means. The lamps may be controlled in groups and illuminated advertising panels may surround the information sheet.
Patent GB-361034-A (GB)
Title: Improvements relating to badminton and the like shuttlecocks
IPC: A63B67/18
Filed: 1930-09-09
Abstract: 361,034. Shuttlecocks. RIMMER, H. A., 21, Baldwin Avenue, Knightswood, Glasgow. Sept. 9, 1930, No..26951. [Class 132 (iii).] A shuttlecock has a flanged cap a fitted over the upper part of the body c, the cap being apertured to receive the stems b of the usual feathers, and the flange a<1> being continuous and formed integral with the cap. The body c is of cork and either partly or wholly fills the usual rubber or other base d. The part of the base shown empty may be loosely filled with cotton wool or other material.
Patent GB-146027-A (GB)
Title: Improvements in and relating to securing devices for looped straps
IPC: G04B37/14
Filed: 1919-11-03
Abstract: 146,027. Imray, 0., (Dubois Watch Case Co.). Nov. 3, 1919. Watch bracelets. - In a securing device for readily attaching and detaching a looped strap, such as a watch wristlet strap, to and from the bar forming part of the watch itself or of the clip for adjusting the length of the strap, the watch a, Fig. 3, has at opposite sides two tubular bars b secured to the watch by arms b<2> one or both of the bars b has a gap b<3>, preferably oblique, a little wider than the thickness of the strap fabric. The loop of the strap c is passed on to the bar b as shown, the whole of the loop being crowded on to one member until it clears the gap, it being then allowed to pass on to the other member. To close the gap and stiffen the bar, it is provided with a pin d having a knob d<1>, an enlargement d<2> for snap engagement with inturned shoulders b<4>, and a head d<3> fitting the bore and preventing complete withdrawal of the pin. In a modification, Fig. 5, the gap is closed by a pin d<4> pressed forward by a spring d<5>, the pin having a finger-piece d' travelling in a slot by means of which it is pulled back to open the gap.
Patent GB-1151104-A (GB)
Title: Text Presentation Device for Copying Machine.
IPC: G03B27/62
Filed: 1966-06-16
Abstract: 1,151,104. Exposing information to be copied. RANK XEROX Ltd. June 16, 1966 [June 21, 1965], No.27034/66. Headings G2A and G2H. Matter to be copied by a copying machine, e.g. a xerographic machine Fig. 1 (not shown) is carried on an indexible drum 124, Fig. 2, mounted in a frame 114 above platen (60, Fig. 1 not shown). The required information is positioned in turn above a slit 122. The information may be carried on an insert (126, Fig. 5 not shown) clamped to the drum 124 as shown in Fig. 4. Alternatively, interchangeable drums may carry the information directly. The drum is rotated by a ratchet drive mechanism 202, Fig. 2, having a reset mechanism.
Patent GB-1187440-A (GB)
Title: Luminescent Materials
Inventor: MATHERS JAMES EVAN
IPC: C09K11/77
Filed: 1967-06-12
Abstract: 1,187,440. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS Inc. 12 June, 1967 [10 June, 1966], No. 27047/67. Heading C4S. A luminescent material comprises Biactivated Y, Gd or Lu vanadate. Eu, Dy; Sm or Tm may be substituted for up to 50% of Bi. The material is prepared by firing NH 4 VO 3 , Bi 2 O 3  and Y, Gd or Lu oxide then rinsing in strong hydroxide. The material may be excited by H.P. and L.P. Hg discharges and cathode rays.
Patent GB-253785-A (GB)
Title: Improvements in the manufacture of weldless chain couplings for railway wagons
IPC: B21L5/00
Filed: 1925-10-28
Abstract: 253,785. Weldless Couplings, Ltd., and Pilot, I. M. Oct. 28, 1925. Forging chains; forging-dies; cutting chains from cruciform and like bars. - In the manufacture of weldless chain couplings from a single billet formed with sets of notches at the centre and near the ends at opposite corners, as described in Specifications 27683/12 and 15588/15, both sets of notches are formed by the same sections of a pair of dies. The dies b, Fig. 4, have recesses e with projections f, by which notches g are formed at the opposite corners near the ends of the billet. A three-pronged marker, Fig. 5, is then employed to mark the position of the other set of notches k, by engaging the prongs l in the recesses g and striking the central prong m with a hammer, the billet being again placed between the dies b and the notches k completed by the projections f. Flat portions are also provided on the dies b for flattening the ends n of the billet. The centre portion h of the billet is then treated in dies, one of which is shown in Fig. 10, for the shaping of the centre link and crown portions of the end links by the recesses r, s, respectively, recesses r<1> receiving the surplus metal. The recesses r are formed to give the sides of the centre link a bowed shape, as shown in Fig, 12, to allow of easy access to the tool for severing the links. The end links are similarly shaped in another pair of dies to the form shown in Fig. 16. After being subjected to a trimming operation for removal of fins, the links are then cut apart in known manner by appropriate tools, and treated in a pair of dies such as shown in Fig. 18 having recesses w to complete the shaping of each link where severed from the adjacent link. recesses w<3> to bring the sides of the centre link parallel and recesses w<1> flattened at w<2> to form flats, as shown in Fig. 23, on the side of one end link allowing of its engagement with a draw-bar hook.
Patent GB-959673-A (GB)
Title: Composite materials for use in the manufacture of, for example, anodes for electronic tubes
IPC: H01J19/30
Filed: 1960-08-04
Abstract: 959,673. Electrode materials. TEXAS INSTRUMENTS Inc. Aug. 4, 1960 [Sept. 10, 1959], No. 27133/60. Drawings to Specification. Heading H1D. [Also in Divisions B3 and E1] A five-layered composite material, for use as the anode of an amplifier tube, comprises a layer of high thermal and electrical conductivity, e.g. OFHC copper, sandwiched between two layers of steel, these three layers being sandwiched between two layers of aluminium. The middle layer preferably has a thickness of less than 40% ahd at least 16% of the thickness, e.g. 0.005 inch, of the composite material. The layers may be adhered or bonded together by the methods described in Specification 745,426. The aluminium layers may contain 1 to 1¢% silicon, and the steel preferably contains no more than 0.08% carbon. Specific examples of such composite materials are given. An anode of such a material is said to have a low temperature differential between its hot and cool portions with good thermal radiation, or a low gas evolution.
Patent GB-140988-A (GB)
Title: Improvements in pistons for reciprocating engines
IPC: F02F3/02
Filed: 1919-11-04
Abstract: 140,988. Hives, E. W., and Rolls-Royce, Ltd. Nov. 4, 1919. Pistons; pistons, balancing laterally.-In order to avoid slap. the trunk piston of an internal-combustion or other engine is made to fit the cylinder when cold and is made resilient in the diameter in which the thrust due to the obliquity of the connecting-rod occurs. This is effected by cutting a circumferential slot a and an axial or inclined slot a<1> in the side of the trunk opposite to that which takes the thrust on the power stroke. Alternatively two circumferential slots may be connected by an axial or inclined slot a<1>. The trunk is of elliptical section with the greater diameter in the line of the thrust. The invention is especially applicable to an aluminium piston working in an iron cylinder.
Patent GB-173074-A (GB)
Title: Spraying apparatus
IPC: F24F6/12
Filed: 1920-09-24
Abstract: 173,074. Allcock, W. H., and Bromley, G. R. Sept. 24, 1920. Air, treating; forced ventilation.-Spraying-apparatus more particularly for disinfecting air in rooms comprises an enclosed receptacle c for containing disinfectant in bulk. an air compressor b preferably electrically driven communicating therewith below the surface of the liquid and separate distributors d, e for the air and liquid connected by pipes i, k with the receptacle c respectively below and above the liquid level and leading to a plurality of spray nozzles each connected independently with both distributors by separate pipes m, n, the quantity of liquid and air being regulated by cocks m<1>, n<1>. The spraying-installation is under the control of a time switch, which cuts out the electric motor driving the air compressor for predetermined intervals of time.
Patent GB-616738-A (GB)
Title: Improvements in air heaters
IPC: F24H3/04
Filed: 1946-09-10
Abstract: 616,738. Unit heaters. ANGELL, J. W. P., YEOMANS, J. E., and KENT ALLOYS. Ltd. Sept. 10, 1946, No. 27217 [Class 137] An air heater comprises a casing of two cup-shaped plates 12, 13, having end inlets and outlets 14, 15, a cylinder 18 carried by an annular plate 19 and housing an electric motor 24 and fan 26, a circular plate 27 spaced from the fan with resistance element supporting parts 28 fixed between plates 19 and 27 and insulated from both, and a helical resistance element 30 supplied with current from a switch-box 31. The hot air discharged through the outlets 15 is directed radially outwards by the bottom plate 37 of a hollow cover 35. Specification 611,087 is referred to.
Patent GB-955476-A (GB)
Title: Supports for portable tools and the like
Inventor: MCCABE PETER
IPC: B23K11/28
Filed: 1960-08-05
Abstract: 955,476. Constant-force spring units. VOKES BERGEN GENSPRING Ltd. Aug. 16, 1961 [Aug. 5, 1960], No. 27296/60. Heading F2S. [Also in Division B3] A tool support for portable power tools such as electric welding guns, nut running machines &c. comprises a frame adapted to be carried from an overhead member, a bell crank lever pivoted to the frame for swinging movement about a horizontal pivot, the short arm of the bell crank being connected to a spring secured to the frame, and the long arm having a connection for suspending the tool therefrom. Frame 1 pivots a bell crank lever 5 at 4 the arm 6 of which has an extension 6(a) secured thereto, and is of a length several times that of the arms 7. A plate 7a is welded across arms 7, and a bracket 10a is welded to bracket 1; which carries pivots 9 for a platen 8 carried by an arm 12 pivoted to arms 7 by a pin 13. Two coaxial springs 11 are carried by arm 12 and the tension in the springs is adjustable by a nut 15. Pin 13 is carried in a block 16, through which passes a screw 17 threaded into a block 18 carried on pin 14, and by rotating screw 17, pin 13 can be moved in slots 19 in the lever to vary the effective length of arms 17. The tool support may be rigidly secured to a roller carriage 23, arranged to run along a girder 24 which in turn can run on girders 26, and the weight of the tool 20 may be counter balanced by the control gear 27 of the tool being carried by a bracket 28. A pulley system or linkage may be connected between the tool and the long arm of the bell crank.
Patent GB-214917-A (GB)
Title: Process of manufacture of synthetic ª•-cocaine
Filed: 1923-10-31
Abstract: l-Cocaine, identical with natural l-cocaine is obtained by resolving into optical antipodes by means of tartaric acid the d-l-cocaine derived from the alkali-unstable ecgonine formed in the reduction of tropinone carboxylic acid.
Patent GB-881786-A (GB)
Title: Plasma device
IPC: H05H1/16
Filed: 1959-08-11
Abstract: 881,786. Nuclear fusion reactors; electric discharge apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 11, 1959 [Sept. 2, 1958], No. 27404/59. Classes 39(1) and 39(4) A plasma discharge device comprises means for feeding a gas into a chamber at a controlled pressure, means for establishing a radial electric field in the chamber to ionise the gas, and means for establishing an axial magnetic field through the chamber to constrain radial movement of charged particles and form a rotating electron sheath about the axis of the chamber for ionising the gas. In Fig 1 the chamber comprises a stainless steel cylinder 12 and contains a central tubular electrode 23 of aluminium provided with apertures 24 through which gas such as deuterium may be admitted to the chamber at a pressure between 0À1 and 1 micron. Connections 14 allow the chamber to be evacuated and a connection 28 provides an alternative inlet for gas. The chamber is surrounded by a central coil 17 and two minor coils 18 enclosed in a casing which is preferably of ferromagnetic material. In operation the coils are energised to form a trapping magnetic field and the gas is ionised by a high potential, e.g. 10 kV, between the cylinder 12 and the central electrode 23 which may be either positive or negative with respect to the cylinder; the high energy plasma produced may be used to produce ion beams, high energy neutrons, or themonuclear reactions. Cooling means may be provided including cooling tubes within the central electrode and around the outside of the chamber.
Patent GB-297688-A (GB)
Title: Improvements relating to the production of tubes or the like with a longitudinal seam
IPC: B21D5/10
Filed: 1928-09-24
Abstract: 297,688. Breitenbach, K. Sept. 23, 1927, [Convention date]. Tubes.-An open-seam tube is made by drawing a metal strip through guide rolls band skelping-dies c, e, g having the form shown in the sectional views, shaped rolls d, f, h being optionally interposed between the dies to convey the strip through the machine. The completed end of the tube is secured in a drawing gripper k. Guide rolls i are provided after the rolls h. Reference has been directed by the Comptroller to Specifications 1484/97 and 17121/12.
Patent GB-1469789-A (GB)
Title: Electrical connection clamps
IPC: H01R4/30
Filed: 1974-06-20
Abstract: 1469789 Terminals PHONIX ELEKTRIZITATSGES H KNUMANN & CO 20 June 1974 [22 June 1973 3 April 1974] 27490/74 Heading H2E  In a screw type terminal, a conductor protecting stirrup 10 is sprung into a groove intermediate the top and bottom of the head of the clamping screw. Undesired rotation of the screw is prevented by frictional engagement of the bottom (or side, Fig. 8, not shown) of the stirrup. The stirrup and the groove may have co-operating polygonal form and the body 5 may be provided with a slot 19 in the plane of Fig. 1 to further restrain rotation. The terminal has slots 19 which can receive tab connectors such as 20.