baber/WOPTO huggingface dataset:
Patent GB-704656-A (GB)
Title: Improvements relating to fastening devices for the waistbands of trousers
Inventor: WOOD HERBERT HOWARD
IPC: A44B13/00
Filed: 1952-12-13
Abstract: 704,656. Dress fastenings. WALKER, Ltd., T. March 5, 1953 [Dec. 13, 1952], No. 31639/52. Class 43 To prevent the bar 1 of the staple of a hook and staple fastenings device for trouser waistbands from rocking sideways when subjected to the pull of the hook, it is provided with lateral lugs 3 at each side, adjacent the attachment prongs 2 so as to provide an extended external bearing upon the face of the band. Notches 7 are provided at opposite sides of the root portions of the prongs so that when the prongs 2 have been clenched on the back plate'the edges of the holes in 'the back plate through which the prongs pass interlockingly engage with the notches 7. These holes are preferably semi-circular in shape. The main portion of the bar 1 of the staple is of channel or corrugated section with an inwardly presented concave face.
Patent GB-1198768-A (GB)
Title: Improvements in and relating to Rolling Bearings
IPC: F16C33/46
Filed: 1968-07-03
Abstract: 1,198,768. Bearings. TORRINGTON CO. 3 July, 1968 [3 July, 1967], No. 31652/68. Heading F2A. [Also in Division B3] A pocketed cage for rolling bearings in which the rolling elements are retained by lugs projecting from the cross-bars is produced by carrying out a lug-forming punching operation on a metal strip or cylinder in which pockets have been punched. Metal is displaced from the cross-bar of the strip 34 by punch elements 43 to form grooves 44. The displaced metal is moulded into shape by recesses 46 to form the lugs 45. A second pair of lugs projecting on the opposite side of the roller may be present (Fig. 4, not shown).
Patent GB-1097355-A (GB)
Title: Method of producing sintered articles of complicated shape
Inventor: HALLER JOHN
IPC: C04B35/64
Filed: 1966-07-14
Abstract: A complex shaped sintered article e.g. made from powdered metal or nylon, is produced by charging the powder into a mould, heating the mould and powder to presinter the powder into a fragile preform which is then transferred to a die of the required shape where it is compressed to pulverise the preform and further compressed to form a briquette which is ejected and then sintered. In the example the sintered article is a planet gear carrier or rotor for use in planetary transmission and the preform is made in a <PICT:1097355/C6-C7/1> <PICT:1097355/C6-C7/2> graphite mould 14 which incorporates a main core 58, outlying pin cores 60 spaced circumferentially, transverse radial removable core bars 62 having holes 64 for pin cores 60.  The charged mould is heated to 1300 DEG -1600 DEG F.  The presintered preform is transferred to die 16, see Fig.4, which incorporates a main core rod 166 with a splined lower reduced diameter part 168 telescoping with a lower inner tubular punch 154.  The upper part 170 of core rod 166 telescopes with an upper tubular punch 172 in die bore 146 and the punch has three circumferentially spaced bores 178 which receive core pins 182. Retractable rectangular core bars 196 are aligned with bores 190 and 192 and recess 194 in the head 170 of core rod 166.  The die also include telescoping tubular outer and intermediate punches 150 and 152.  The preform is compacted in the die and then sintered at 1850 DEG -2400 DEG F.  In a further embodiment a composite preform is made up of several component preforms stacked in the die cavity and compacted together.
Patent GB-1065294-A (GB)
Title: Self-lubricating materials and their manufacture
IPC: C22C32/00
Filed: 1964-08-04
Abstract: A self-lubricating material is formed by coating dry lubricant such as molybdenum disulphide particles with metal by the thermal decomposition of gaseous metal compounds such as carbonyls, and then joining them to form compact material.  The coated particles are joined by sintering, hot-pressing, cold-welding or utilizing the heat of recombination of unstable atomic gases.  Alternatively metal is deposited between the coated particles from gaseous metal compounds. Alternatively again the coated particles are connected by using a chemical reaction involving the metal coatings, e.g. oxidation, or involving added metal compounds. Alternatively they are connected by an organic binding agent.  The material may be reinforced by metal nets or wires or laminae.  The lubricant may be a metal sulphide metal oxide or graphite and its coating material nickel, iron or molybdenum.  The material may include further particles of non-abrasive and/or oil affinitive materials such as tin, lead or other soft metals or alloys in the form of nodules which may be coated with a harder metal.
Patent GB-1354404-A (GB)
Title: Intake duct valves in internal combustion engines especially rotary piston engines
IPC: F02B53/00
Filed: 1971-07-06
Abstract: 1354404 Rotary-piston engines SOC DE CONSTRUCTIONS MECANIQUES PANHARD & LEVASSOR 6 July 1971 [10 July 1970] 31730/71 Heading F1F In a trochoidal-type I.C. engine a pipe 5 conducting fuel/air mixture from a carburettor (not shown) to an intake port 6 contains a valve member 10 to prevent ingression of exhaust gases when the main throttle member of the carburettor closes. The valve member is a disc with lugs 15, 23 pivotally connected to a yoke 14 on a rod 12 and to a link 21, respectively. A partiallyrotatable shaft 19 coupled to said throttle member has a finger 18 engaging with a slot 16 in the rod, the latter being slidable in a fixed sleeve 13. The link 21 has a pivot 22 that slides axially of the sleeve in a chamber 24. Inward movement of the rod in response to closure of the throttle member brings the valve member into abutment with a seat 26. An additional pipe (not shown) may be provided for the fuel/air mixture at low loads and speeds.
Patent GB-272394-A (GB)
Title: Improvements in or relating to flash-light devices suitable for photographic purposes
IPC: F21K5/08
Filed: 1926-12-14
Abstract: 272,394. Vierk÷tter, P. Dec. 14, 1926. Magnesium powder lamps.-Magnesium flash powder containing an oxygen yielding agent is burnt in a transparent or translucent body from which the air has been wholly or partially exhausted or containing rarified gases. Fig. 1 shows a container 11 for a flashlight charge 12 supported by a glass cylinder 10 on an asbestos disc 8 which is secured to the stem 3 of the cap 1 of a glass flask or bulb 2. The bulb 2 is wholly or partially exhausted through a tube 7 embedded in the cap 1. An ignition wire 15 passing through the flashlight powder 12 has its ends connected by lead-in wires 4 to the cap 1 and an insulated disc 6, the connection between one end of the ignition wire and one lead-in wire being made when the bulb is exhausted by the expansion of a small volume of air in a capillary tube 16 moving a mercury drop 17 downwards. The ignition wire may be of iron, tungsten, tantalum or molybdenum. The increase of current on the flash powder becoming ignited causes the ignition wire to fuse and break the electric circuit. The container 11 consists of a glass or asbestos ring with end portions 13, 14 of the same material secured thereto by an inorganic cement so as offer no appreciable resistance to the gas pressure produced on ignition of the powder. The cup 1 may be either of the threaded or bayonet cap type and ignition may be effected by heat, spark, or chemical means. A shield 31 carried by a ring 32 engaging the cap 1 screens the light from and directs the light to any desired direction. In a modification two or more charges separted by a mica screen are enclosed in single bulb and arranged to be ignited successively.
Patent GB-382437-A (GB)
Title: Improvements in pipe cleaning tools
IPC: E03C1/302
Filed: 1931-11-17
Abstract: 382,437. Screw - and - nut gearing. HOTCHKISS, C. F., 10, Kendall Avenue, Binghampton, New York, U.S.A. Nov. 17, 1931. No. 31818. Convention date, Nov. 22, 1930. [Class 80 (iii).] A pipe-cleaning tool is mounted on the end of a rotatable flexible shaft 8 consisting of tightly coiled wire, and is forced through the pipe to be cleaned during rotation of the shaft by a feeding - device disposed transversely to the shaft and having recessed portions 14, 17 shaped to engage the helical groove of the shaft. The feeding device is formed of spring stock, and an intermediate portion thereof is coiled to receive a threaded bolt 10 provided with an end hook 19 for clamping it to the end of the pipe. One end of the stock extends horizontally behind and beyond the shaft 8 and is bent to U-shape at 11 to form two parallel portions 12, 13, and the other end 15 is adapted to extend slightly downwardlv in front of the shaft between the parallel portions and terminate with a finger piece 16 slightly beyond and behind the portion 11. The recesses 14, 17 are formed in each of the portions 12, 13, 15 respectively, and are preferably filed or otherwise provided with sharp edges 18 on their inner faces. In a modification, Fig. 4, the feeding-device comprises a sheet metal frame 23 having a channel 24 in one side to receive the shaft and provided with a spring 28 which is anchored to the frame and passes through a slot 34 therein to engage the shaft, the bolt 10 being received in a strip 25 formed integral with the upper edges of the two longer sides of the frame.
Patent GB-246449-A (GB)
Title: Improved measuring filler for non-frothing liquids
IPC: B67C3/20
Filed: 1925-12-17
Abstract: 246,449. Enzinger-Union-Werke Akt.- Ges. Jan. 24, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Moving-chamber apparatus. - The measuring vessels 1 are suspended from a ring 2 which rotates below a stationary container 5, the foot flange 6 of which engages in the edges 3 of the ring in such a way that the vessels are filled in moving past the container and the liquid is levelled off beyond the container so that the measures 1 are brim full. A duct 10 is provided to receive the air from the vessels 1 during filling, the air being returned to the vessels during discharge so that the liquid contacts as little as possible with the outside air. Each vessel 1 has a discharge valve 4 adapted to be lifted by the can &c. to be filled.
Patent GB-686996-A (GB)
Title: Apparatus for sterilizing filled bottles and like containers
IPC: A23L3/06
Filed: 1949-12-13
Abstract: 686,996. Sterilising food in containers. ZIJDERVELD L. J. VAN. Dec. 13, 1949, No. 31942/49. Class 49. In apparatus for sterilizing food in containers, e.g. bottles of milk, a casing 1 encloses an annular sterilizing space which is substantially cylindrical about a horizontal axis and is divided by walls 11 into compartments, each wall being pierced at 20 to permit a container 14 to pass through onto one of a series of blades 12 radially arranged and rotatable about the said axis, each blade, when regarded as moving downwardly, having a supporting surface which is inclined towards the discharge opening 18 so that when a space between two blades coincides with an opening 20, a container can pass, e.g. roll, from one compartment into the next, the outer end of each blade being provided with a stop, e.g. a narrow strip. The other surface of each blade may be formed, e.g. dished, so that it carries a container upwardly without rubbing the walls 11. Access to the sterilizing space may be gained by removing a cover 19. A lower space 2 communicating with the sterilizing space throughout its length, may be provided and access to this space may be gained by removing another cover. Steam or water may be passed into the apparatus through a perforated tube 6.
Patent GB-943346-A (GB)
Title: Optical projector
IPC: G03B21/132
Filed: 1960-09-16
Abstract: 943,346. Optical projection apparatus. J. BOLSEY. Sept. 16,1960 [Nov. 20, 1959], No. 31992/60. Heading G2J. An optical projector having a light source and condenser system, for directing light through a transparency, and an objective lens and mirror assembly, which can receive the light from said system and project an image of the transparency to a screen on which the image is viewed, is characterized in that the objective lens and mirror assembly includes a housing in which an objective lens is removably mounted, a plane mirror for reflecting light which has passed through the objective lens to the screen, and a transparent plate which is carried by the housing, which retains the removable objective lens in the housing, which is movable to render the objective lens accessible for removal and replacement, and through which the light reflected from the mirror passes. As shown (Fig. 1), an overhead projector comprises a lamp and condenser housing A, a support mast C fixed to said housing A and an objective housing B. The housing A, shown in greater detail in Fig.3,includes a lamp 30,a reflector 46 (which may be integral with the lamp 30), a movably mounted meniscus condenser lens 48, an inclined mirror 56, louvres 60 for protecting the operator's eyes from direct light, a fresnel lens 58 and a translucent plate 24 for supporting transparencies to be projected on to a screen 80. The housing A is adjustably supported on screws 104 and legs 114. The mast C is collapsible and supports the housing B (Fig. 6) which contains an adjustably inclined mirror 94, a slidable glass plate 88 and a plurality of channel members such as 84 by which one or more meniscus objective lenses in supports as shown in Fig. 8 may be removably supported. Means other than channels for supporting objective lenses are illustrated in Figs. 7a and 8a (not shown). The housing A may also contain a cooling fan and adjustable ventilating louvres (cf. Figs. 2 and 2a not shown). A modified collapsible housing A is illustrated in Figs. 11-14 (not shown) and Fig. 15 (not shown) illustrates a housing A with provision for storing the housing B therein when not in use. A pair of prisms may be used between the objective lens and plate 24 if these are misaligned. A periscope system in a housing may be attached to the projector to enable an operator facing the audience to view the projected image.
Patent GB-537341-A (GB)
Title: Improvements in cereal grain washing machines
IPC: B02B1/06
Filed: 1939-12-12
Abstract: 537,341. Washing granular materials. ROBINSON & SON, Ltd., T., and SMITH, L. Dec. 12, 1939, No. 32047. [Class 82 (ii)] In a grain-washing machine in which an upper worm comprising paddles or vanes d mounted on a shaft c and a lower worm e are mounted in an openended trough located in a tank a, the paddles d propelling the grain fed into the trough b towards the left and the heavy stones falling from the grain being removed by the worm e into a box e<SP>1</SP>, an adjustable weir is mounted at the end of the trough b over which the smutty grain and other impurities are discharged along with water flowing over the weir, good grain being propelled below the weir and delivered by paddles s into a rotary washer or whizzer t. The weir comprises a pivotally mounted channel having side plates k one of which has an aperture to provide a fulcrum about a draw-off pipe m, a back plate k<SP>1</SP> and a weir plate j which slopes at one side towards the pipe m through which material passing over the upper edge of the plate j is discharged. The plate j is adjusted by turning the channel about the pipe m by the turning bolts o upon the threaded eye-bolt p secured at one end in the plates k and near the other end passes through a fixed member r secured to the sides of the trough b. The channel fills the width of the trough b and the grain is fed into the trough by a movable shoot i.
Patent GB-747724-A (GB)
Title: Improvements in or relating to non-metallic permanent magnets
IPC: C04B35/26
Filed: 1952-12-18
Abstract: 747,724. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 18, 1952 [Dec. 21, 1951], No. 32099/52. Drawings to Specification. Class 38 (2). A body of ferromagnetic material exhibiting high values of coercivity constituted of non- cubic crystals, preferably of hexagonal structure, of polyoxides of iron and at least one of the metals Ba, Sr, Pb and optionally Ca up to an atomic fraction of the metals other than iron, is so treated during manufacture that it exhibits anisotropy whereby its value of (BH) max  in the magnetically favoured direction is increased. The material may be a sintered mixture of Fe 2 O 3  with one or more of the oxides BaO, SrO, and PbO, and optionally some CaO, such as forms the subject of Specification 708,127. The anisotropy may, be obtained by rolling the material in a metal shroud at a temperature above 800‹ C., preferably between 1000‹ and 1200‹ C., and then sintering if necessary. The production of the product from the starting materials may take place in the shroud. In alternative methods the material in finely divided form, preferably in particles between 5 and 10, which are sufficiently mobile to be directed magnetically, is subjected to an external magnetic field of strength greater than 100 Oersted, and then compressed and/or sintered into a block, preferably while maintaining a magnetic field up to the Curie point. If the particles are reduced to the size of single crystals. they will have preferential magnetic directions, Freedom to orientate in the magnetic field may be arranged by putting the particles in a vibrating container or suspending them in a liquid. This liquid may be removed by suction, vaporization, or expelled under pressure. Residual binding material may be left which assists maintenance of particle orientation during sintering when it may be removed or destroyed by the heat. Suitable liquids are water, or a solution in acetone of polyvinylacetate some of which is left behind as the binder. The final magnetization of the magnet may take place during cooling following the sintering. Examples are described in which the material in finelydivided form is made by grinding together barium carbonate or strontium carbonate with Fe 2 O 3 , in a ball mill, heating to 1000‹ C. and regrinding after cooling. These examples specify various strengths of binder solution, rates and temperatures of heating, and strengths of magnetic fields. Values of  I H o ,  B H o , retentivity, (BH) max  (which has values up to 1.72 X 10<SP>6</SP>) and apparent density of the products are enumerated.
Patent GB-321401-A (GB)
Abstract: 321,401. British Celanese, Ltd., Ellis, G. H., Olpin, H. C., and Kirk, E. W. Aug. 1, 1928. Benzoquinone and naphthoquinone derivatives; dye preparations.-Compositions containing derivatives of benzoquinone or naphthoquinones in which one or more nuclear hydrogen atoms are replaced by amino-, alkylamino- or aralkylamino groups in dispersed form together with a dispersator and/or protective colloid are used for dyeing cellulose esters and ethers. The quinone residues may be substituted by alkyl, nitro and amino groups or halogen and the alkyl or aralkyl groups present in the amino groups may also contain substituents. The use of products derived from naphthazarin and ammonia or aliphatic amines is disclaimed. Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819, and 273,820 are referred to. 2 : 5-Di(methylamino)-benzoquinone is obtained from methylamine and benzoquinone.
Patent GB-1431435-A (GB)
Title: Image recording process including image stabilization
IPC: G03C5/56
Filed: 1972-07-10
Abstract: 1431435 Stabilizing images AGFAGEVAERT NV 26 June 1973 [10 July 1972]  32149/72 Heading G2C Dye images produced by imagewise exposure of a material containing a photo-sensitive polyhalogen organic compound and a dye precursor (e.g. a spiropyran or compounds as in Specifications 1399466 and 1398295) are stabilized by either (i) removing the unreacted polyhalogen from the material by heating or by a solvent and complexing the removed halogen with triethylene diamine or (ii) heating the material which already contains an overcoated layer containing triethylene diamine so that a complex is formed. The solvent is preferably water-immiscible, e.g. perchlorethylene, and may be applied after the material has been heated to bring the polyhalogen to the surface of the material. The polyhalogen may be recovered from the complex (a) by treatment with an acid e.g. HCI to form a salt in method (i) above or (b) by washing off if a hydrophilic colloid layer is used in method (ii) above. In the Examples, a polyester support is coated with a layer containing CBr4 and optionally CHI 3 , a spiropyran, polyN-vinylcarbazole and polyethylene isophthalate and optionally overcoated with a layer of gelatin and triethylene diamine, imagewise exposed to produce a dye image and (i) heated to 110‹C to form the complex in the overcoat (when present) (ii) heated to 180‹C in a closed chamber to remove the halogen which is then complexed by passing through a tube containing triethylene diamine and a filler or (iii) heated to 85‹C to bring the unreacted halogen to the top of the layer and extracting the halogen by immersion in perchloroethylene followed by complexing as in (ii). The halogen may be recovered from the complex by adding an aqueous acidic solution.
Patent GB-651475-A (GB)
Title: Arrangement for regulating the voltage of a galvanic bath
IPC: C25D21/12
Filed: 1947-12-05
Abstract: 651,475. Automatic voltage control systems. KALIN, J. Dec. 5, 1947, No. 32153. Convention date, Feb. 8, 1946. [Class 38 (iv)] The voltage of a plating bath is automatically controlled by both a variable series resistor and by a variable resistor in the field of the D.C. generator supplying the bath, both resistors being motor-actuated in accordance with a voltmeter relay. The relay has its coil 11, Fig. 6, connected across the input conductors 2, 3 for the bath, and has contacts 14, 15, 16, which operate relay 17 or relay 18, which in turn energize (via contacts 5, 27, or 6, 28 as the case may be) the appropriate coil of a reversing contactor 31, 32 controlling a motor 37 actuating the arm 26 of the series resistor. The arm 26 at either limit of travel closes switch 23 or 24 to energize coil 80 of the change-over contactor, and relays 17, 18 then control (via contacts 5, 43, or 6, 45 as the case may be), the appropriate coil of a reversing contactor 59, 60, controlling the motor 51 which actuates the arm 48 of the field regulator of the generator 4. The arm 48 at either limit of travel opens limit switches 53, 54 to de-energize coil 80. The Specification as open to inspection under Sect. 91 discloses a similar system in which the relay 11, Fig. 1 (Cancelled), has its coil connected across the bath 1 and controls relay 17 or 18 which (via a limit switch 23 or 24) controls the appropriate coil of a reversing switch 31, 32 controlling a motor 37 actuating the series resistor. At either limit of travel, switch 23 or 24 opens the motor circuit to (via one of the limit switches 53, 54) energize the appropriate coil of a reversing contactor 59, 60 controlling the motor 51 actuating the field regulator. All control gear is energized from a battery 6 via a switch 10 which is closed only when the main circuit is energized. This subject-matter does not appear in the Specification as accepted.
Patent GB-624719-A (GB)
Title: Improvements in taps or valves
IPC: F16K3/24
Filed: 1946-10-30
Abstract: 624,719. Valve closure members. JENKS, Ltd., E. P., and JENKS, E. P. Oct. 30, 1946, No. 32158. [Class 135] In a valve of the type in which an axially movable obturating member 6 moves into the outlet conduit 2 to shut-off the flow, the member 6 is so mounted on its actuating rod 5 that it tilts at the commencement of the opening movement to break the seal between the inlet and outlet, but it is moved into the closed position by a centrally applied pressure. The connection between the disc 6 and the rod 5 comprises ears 7 upstanding from the disc and carrying a cross-pin 10 which engages in a slot in the rod. During the closing movement, the flat end of rod 5 presses on the disc and rectifies the tilt. The disc carries a D-section rubber sealing ring 12 and it seals inside a restricted . portion 11 of the outlet conduit.