baber/WOPTO huggingface dataset:
Patent GB-412173-A (GB)
Title: Improvements relating to case-hardening
IPC: C23C8/66
Filed: 1932-12-14
Abstract: In the case-hardening of iron or steel articles, the articles or parts to be treated are coated with a pasty mixture, preferably of a honey-like consistency, containing farinaceous material such as flour or rice and heated to 900-950 DEG  C.  The grains of farinaceous material are preferably ground whole to include the nitrogenous matter of the skins or husks and is mixed with a binder such as a mixture of starch, water or sugary substance and, one or more energizers such as an alkaline earth carbonate, hydrate or alkali. One or more adhesives or moisture retaining substances such as gum and glycerine and fillers such as slate powder, gypsum barytes or iron oxide may also be added as well as densifying matter such as pumice powder or ground coke.  The mixture may also contain potassium or sodium ferrocyanides.  In an example, the mixture comprises 31 per cent of ground rice, 21 of barium carbonate, 1 of sodium hydrate, 5 of glucose, 3 of silica and 39 of water.
Patent GB-1109023-A (GB)
Title: Electron discharge device
IPC: H01J33/04
Filed: 1966-08-09
Abstract: A silicone-modified polyester paint-binder resin is prepared by heating neopentyl glycol, xylene, and hydroxy-functional, cyclic polysiloxane of specified properties at 325 DEG  to 350 DEG  F. for two hours, whereafter maleic anhydride, tetrahydrophthalic anhydride and dibutyl tin oxide are added and the temperature kept at 325 DEG F. for one hour.  The temperature is then increased to 425 DEG  F., the xylene stripped off, and the temperature maintained until the acid number is about 25.  A vacuum is pulled to about 5-10mm. mercury, hydroquinone added when the acid number is less than about 10, the charge cooled to 180 DEG  to 190 DEG  F., and styrene is finally added.  The resin may be sprayed upon metal plates and cured by electron irradiation (see Division H1).
Patent GB-522361-A (GB)
Title: Improvements in and relating to grinding cylindrical work pieces
IPC: B24B5/00
Filed: 1938-12-06
Abstract: 522,361. Grinding. SCHUMAG SCHUMACHER METALLWERKE AKT.-GES., (formerly SCHUMAG SCHUMACHER METALLWERKE AKT.-GES. PRAZISIONSMECHANIK). Dec. 6, 1938, No. 35534. Convention date, April 26. [Class 60] Cylindrical work c is ground by rotating it and feeding it axially between two peripherally acting grinding-discs a, b rotating in opposite directions at different circumferential speeds. The work is rotated in the same direction as that of the disc a moving at the lower speed, and at such a speed as to equalize the cutting speed of the two discs.
Patent GB-965470-A (GB)
Title: Improvements in or relating to hydraulic pumps or motors
IPC: F04C15/00
Filed: 1961-10-04
Abstract: 965,470. Gear pumps and motors. R. BOSCH G.m.b.H. Oct. 4, 1961 [Oct. 8, 1960], No. 35711/61. Heading F1F. In an hydraulic gear pump or motor, the gear wheel shafts on each side of the gears 6, 7, are journalled in a common bearing member 10, 11, pressed against the gear wheels and housing by hydraulic pressure, and a clearance 16 is formed between each member 10, 11 and the housing 1, through which high pressure fluid communicates with a region 17 on the end face of the member 10, 11, and an adjacent region 18 of the member 10, 11, on the low pressure side of the pump, whilst a region 23 on the end face of the member 10, 11, and a region 22 of the member 10, 11, communicate with the low pressure side of the pump. The regions are separated by seals 19 and 25, the former urged against the housing by high pressure fluid. Bores 28 and 29 communicate low and high pressures respectively. Each region 22 may be peripherally extended by grooves in the members 10, 11 (Fig. 3, not shown). If the apparatus is to be reversible, a further seal such as 19 and bore such as 29 are provided, being symmetrical to the seal and bore shown with respect to a plane passing through the axes of the gears, and the two regions 23 are connected by a bore through one gear shaft, and are connected to an oil leakage path instead of bore 28, or are connected to both sides of the pump through non-return valves, Figs. 5-7 (not shown). A region on the high pressure side of member 10 or 11 may be enclosed by an endless seal, and connected through a bore to the low pressure side, Figs. 8 and 9 (not shown).
Patent GB-428802-A (GB)
Title: Improvements in or relating to electric incandescent gasfilled lamps
IPC: H01J9/40
Filed: 1933-12-19
Abstract: 428,802. Making electric incandescent lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and DUDDING, B. P., c/o General Electric Co., Wembley, Middlesex. Dec. 19, 1933, No. 35735. [Class 39 (ii)] In sealing-off electric incandescent lamps provided with a highly concentrated filament and an envelope filled with gas at a pressure exceeding atmospheric the sealing-off tube is compressed between the jaws of a clamp which are heated so as to soften the tube by their contact with it. The pressure of the jaws is maintained after the tube has collapsed, to enable them to be cooled until the tube is sufficiently cool to withstand the internal pressure. Reference has been directed by the Comptroller to Specification 406,185.
Patent GB-1091006-A (GB)
Title: Improvements relating to the filling of containers with powder
Inventor: ROGERS JOHN EDGAR CROFT
IPC: B65B1/16
Filed: 1965-08-20
Abstract: 1,091,006. Pneumatic conveyers; packaging machines. ALLEN TRANSMATIC Ltd. July 11, 1966 [Aug. 20, 1965], No. 35756/65. Headings B8A and B8C. In a method of filling containers with powder, the powder is fed in measured quantities from a hopper 2 into a chamber 3 having porous walls through which compressed air is pumped via a pipe 5 to fluidize the powder and facilitate its dispensing through a delivery nozzle 4 before recharging the chamber with another measured charge. Again, the top of the chamber (3), Fig. 2 (not shown), may be closed by a lid (8), the powder being fed from a hopper (2) through a rotary valve (10), and the compressed air providing a discharge pressure in addition to fluidizing the powder. In a further alternative, the powder is fed from a bulk supply hopper (13), Fig. 4 (not shown), via a rotary metering valve 14. A preferred form of delivery nozzle (15), Fig. 5 (not shown), includes a central tube (17) surrounded by an annular space connected to an outlet (18) for the air displaced from the container (16) and provided with a filter (19).
Patent GB-1117329-A (GB)
Title: Brushless direct-current motor
IPC: H02K29/08
Filed: 1965-08-20
Abstract: 1,117,329. Electric motors. HITACHI SEISAKUSHO K.K. 20 Aug., 1965 [21 Aug., 1964], No. 35903/65. Heading H2A. [Also in Division H3] A brushless motor has a stator wound with a concentrated full-pitch winding whose conductors are energized with direct current in a sequence determined by rotor position in such a way that the current does not flow when the instantaneous value of the magnetic field influencing the conductor is less than its maximum value. As shown, the conductors D1, D2 ... , are each connected to respective semiconductor switching devices 1a, 2a, ... , and current flows in the conductors when gates G1, G2 ... , are energized by the rotor position detector. The detector is designed so that the triggering signal is present for less than 180 degrees and thereby cuts off the current at an instant when the magnetic field linking the respective conductor is still near maximum, and in this way motor efficiency is improved. In a two pole machine either two stator windings can be used each controlled by a single semiconductor switch, or if a single winding is used pairs of opposite conductivity type switches are used to provide current flow in both directions in the winding. The detector may use photosensitive devices which are actuated by light passing through a slot in a plate mounted on the rotor shaft, where the length of the slot corresponds to the angle of required current flow. Alternatively a Hall generator system can be used and the operating angle determined either by the construction of the influencing magnet or by including a pulse shaping circuit in the output of the Hall generator. The pulse shaping circuit may employ diodes or Zener diodes or include a differential amplifier and bi-stable circuit using transistors or SCR's. In a further construction a magneto-resistive element may be used in the detector circuit. The motor rotor is a permanent magnet.
Patent GB-177250-A (GB)
Title: Improvements in or connected with control surfaces for aircraft
IPC: B64C9/02
Filed: 1920-12-22
Abstract: 177,250. Duncan, B. A. Dec. 22, 1920. Planes and the like, construction of; steering, balancing, and regulating altitude.-In a control surface, a spar is composed of lengths of tube having circular end flanges which abut on and are riveted to the sides of a rib or other radial lever. An operating lever may be secured with a rib between and to the same pair of flanges. Fig. 2 shows the web 13 of a rib secured between flanges 10 of a tubular spar 9. Heel-arms 16, having bearings 19, and hinging on a pin 20 secured to a main spar 22 of the aircraft, are also intserposed between the flanges 10. If the rib has a box web, the flanges 10 are connected by rivets passing through one flange and one side of the box web. As shown in Fig. 4, a web 14, an operating lever 23, and a tie 24 are formed of sheet metal bent along the edge 25 and riveted to make a hollow lever and a box web, the web being fitted with tubular booms 27 at each corner.. A lever may be formed on each side of the control surface. Short lengths of the tube comprising the spar facilitate grading according to load-- ing.
Patent GB-619363-A (GB)
Title: Improvements relating to grain sorting cylinders
IPC: B02B1/02
Filed: 1946-12-04
Abstract: 619,363. Sorting grain. NEVILLE, G. A. E. Dec. 4, 1946, No. 35939. [Class 117] A grain sorting cylinder of the type provided with grain-lifting recesses is adapted to have a swivelling movement about the axis of its driving shaft so that the inclination of the cylinder can be varied without affecting the drive. As shown, the cylinder a is carried in a cradle comprising girders b and cross-members c. Brackets e of one end of the cradle have cylindrical projections f which enter holes in uprights g, the projections surrounding but clear from the driving shaft d. The other end of the cradle is adapted to be raised by screws i carrying nuts j in the form of worm wheels which can be turned simultaneously by a worm shaft k fitted with a hand-wheel n. The cradle can be locked in position by the use of hand wheels p which tighten the rods extending through distance pieces and through slots v, w in the uprights g, m.
Patent GB-522226-A (GB)
Title: Improvements in or relating to telephone transmitters
IPC: H04R21/02
Filed: 1938-12-09
Abstract: 522,226. Transmitters. STANDARD TELEPHONES & CABLES, Ltd. (Friebel, F. G.). Dec. 9, 1938, No. 35967. [Class 40 (iv)] A telephone transmitter comprises a flexible metal bellows forming the sides of a hermetically sealed chamber including opposed electrodes and a flexible container for the carbon granules which are prevented from entering the grooves of the bellows. As shown in Fig. 1, the metal bellows 12 are formed with an integral cup-shaped extension 13 on which the moving electrode 7 is fitted. The flexible container, preferably of silk, is secured to a flange 15 of the electrode 7 and has an annular portion 17 clamped between an extension 14 of the bellows and an annular extension 2 of ceramic material secured to the back electrode 2 by a ring 3 of sealing material which is also introduced between the back electrode 2 and a channel - shaped clamping ring 5. The microphone unit rests on the rear wall of the casing and is retained in position by washers 19 and spring rings 9, 10 which engage an extension 18 of the rear electrode. In a modified construction, Fig. 2, the upper portion of the flexible container 26 is clamped between annular extensions of the moving electrode 27 and of the metal bellows 32. The opposite end of the metal .bellows and container are clamped to the fixed electrode 21 by insulating washers 29, 37 and spring rings 22, 23 held by an extension 28 of the fixed electrode 21. The granule chamber is sealed off by a cup-shaped metal member 38 secured to the bellows and to a glass bead 43 mounted on a pin 44 connected to the rear electrode and soldered in an eyelet 47 insulated from the casing 35 by washers 48. The microphone unit is supported on a shoulder 50 of the casing and is secured to a diaphragm 20 which is peripherally engaged by a set of annular damping rings 34 retained by a cover plate 39 and a clamping ring 40. The central and peripheral portions of the diaphragm are formed with radial and annular corrugations respectively,
Patent GB-323102-A (GB)
Title: Improvements in and connected with carbonating apparatus
IPC: B01F3/04
Filed: 1928-12-06
Abstract: 323,102. Blaxter, A. P., and Blaxter, A. P. L., (trading as Barnett & Foster). Dec. 6, 1928. Aerating processes. - In apparatus, such as described in Specification 324,132, wherein water or a weak solution of sodium carbonate is deaerated before being passed to the carbonating plant, an intermediate chamber is provided into which the deaerated liquid is pumped and wherein it is stored under the same pressure as that of the gas to be supplied to the carbonating vessel, being drawn therefrom as required by a mixing pump. The water or solution from a supply tank 2 is deaerated in a vacuum cylinder 4 exhausted by a pump 5 and thence is conveyed by a pump 2 to the intermediate chamber 11 which is maintained at the same pressure as the gas bell 20 by a communicating pipe 19. A mixing pump 22 draws carbon dioxide from the gas bell 20 and, through the pipe 21, deaerated liquid from the chamber 11, supplying the mixture to the carbonating vessel through the pipe 24. To avoid risk of being flooded, the chamber 11 is provided with a float-controlled bye-pass valve 13, Fig. 2, which, as the level of liquid rises, gradually closes the normal supply ports 14, 15 and opens a port 16 to a pipe 12 whereby excess water &c. may return to the solution pan or other receptacle.
Patent GB-1441819-A (GB)
Title: Container wall with rupturable weakening line
IPC: B65D17/32
Filed: 1973-07-30
Abstract: 1441819 Container closures; easy-open containers ALUMINUM CO OF AMERICA 30 July 1973 [8 Sept 1972] 36097/73 Headings B8T and B8D [Also in Divisions B3] A container wall 14 has an elongate dent 34, Fig. 1, and a weakening line 32 which extends across the dent, so as to be rupturable to form an opening in the wall when the dent is stressed as indicated in Fig. 3. The dent projects from the wall in the direction in which opening pressure is to be applied. The dent is formed in the wall of a screw on cap 10, Fig. 2, having a seal 24, 26 which is affixed to a container 12 which is vacuum packed. Rupturing the cap at the intersection of the dent and weakening line releases the vacuum and facilitates removal of the cap. In a second embodiment, Fig. 6 (not shown), the dent is formed in the wall of a cam and the weakening line is extended to delineate an inwardly deflectable opening panel rupturing of the weakening line being initiated at the dent/weakening line intersection by the application of digitally applied inwardly directed pressure. In a further embodiment, Fig. 12 (not shown), a plurality of elongate dents cross the weakening line to facilitate more extensive rupture thereof. The description further relates to die assemblies, Figs. 10 and 11 (not shown), for use in forming the opening panels of the latter embodiments.
Patent GB-961933-A (GB)
Title: Improvements in or relating to electrical wiring installations
Inventor: COWLEY THOMAS RICHARD
IPC: H02G3/04
Filed: 1959-10-26
Abstract: 961,933. Distribution systems. GRANADA GROUP Ltd. Jan. 25, 1961 [Oct. 26, 1959], No. 36163/59. Heading H2E. A trunking section for an electrical distribution system has a plurality of multiple terminal blocks 8 secured therein at spaced intervals, a pair of electrical conductors 11, 12, extending along the trunking being looped into different terminals of each terminal block 8. Adjacent to one end of the section is secured a terminal block 10 into each terminal of which the ends of the conductors are connected. The other ends of the conductors 11, 12 are formed into wiring tails 13 which may be connected to further trunking sections, the tails on the final section of interconnected trunking sections being removed. Access to the terminal blocks 8 from an arrangement of lighting points or switch points as may be required is through knock-out panels 14 in the side walls 2 of the trunking, each panel being aligned with a terminal block 8.
Patent GB-407487-A (GB)
Title: Improvements in transmission mechanism for automobiles
IPC: F16H59/14
Filed: 1932-12-21
Abstract: 407,487. Change speed gearing. BENDIX AVIATION CORPORATION, 401, Bendix Drive, South Bend, Indiana, U.S.A. Dec. 21, 1932, No. 36195. Convention date, Feb. 29. [Class 80 (ii).] In an automatically changing two-speed gear suitable for vehicles, means responsive to driven shaft speed is supported on means responsive to driven shaft torque. There are in line a driving- shaft 10 with a splined extension 19, an intermediate shaft 23, and a driven shaft 51. During the automatically changing forward speeds the shafts 23, 51 are rigidly connected by a spline-clutch gear 53 in the position shown. The torque-responsive means is a nut 43 on a screwed part 44 of the shaft 23. This nut 43 is rigid with a nut block 38 which is thrust to the right by springs 46 which it carries. The speed-responsive means are centrifugal weighted levers 36 which are pivoted at 37 upon the nut block 38. The nut block 38 is splined at 67 to a clutch housing 26, so that it is to this housing 26 that the two different speeds are to be imparted. The lower speed is through a countershaft train 13, 14, 17, 28 and the higher speed through a clutch pack 31 on the engagement of which the lower speed train overruns at a one-way clutch 29. Increased speed of the driven shaft tends to engage the clutch 31 by the expansion of the weights 36. Increased torque on the driven shaft tends to disengage the clutch 31, owing to the nut block 38 screwing away from that clutch against the springs 46 and carrying the weights 36 away also. A balance between these opposing tendencies is struck at any time to bring in one speed or the other or to allow the clutch 31 to slip. The centrifugal levers 36 have noses 34 which thrust against the clutch pack 31, and inwardly extending toes 70 which limit the outward throw of the weights. To engage reversed drive, the spline gear 53 is slid to the left upon which there is a simple reversed drive through a train 13, 14, 16, 18, 61, 53.
Patent GB-1024420-A (GB)
Title: Electric shaver
IPC: B26B19/28
Filed: 1964-09-03
Abstract: 1,024,420. Dry shavers. SUNBEAM CORPORATION. Sept. 3, 1964 [Nov. 12, 1963], No. 36223/64. Heading B4B. [Also in Division H2] A dry shaver 30 comprises a cutter assembly 38 secured to a unitary support 31 of moulded plastic and an electric motor 52 comprising an armature 53 the ends of the shaft 54 of which are rotatably supported in bearings 55 secured to the support, a field assembly 81, 82 supported by a pair of U-shaped bail clamps 34, the ends of the legs of which are secured to a bail hanger 35 mounted on a portion 31b of the support, and a commutator 65 having associated therewith a brush terminal assembly 66 which comprises a moulded brush mount 70 secured to the support 31. The cup-shaped casing 32 of the'shaver is secured by screws 37 to a hanger bracket 36 provided with pins 36a engaging the bight portions of-the clamps 34. Field winding 81 is connected to terminals 64 supported in an insulating plate 87 mounted on a depending member 31i of support 31. Brushes 76 are biased against the commutator by means of contact levers 77 which are interconnected by a tension spring 80. The cutter shaft 39 is oscillated from the armature shaft 54 by means of a drive mechanism 92. The cutter shaft is bonded to resilient blocks 40 supported in recesses in the support 31 and in end caps 47, 48 secured to the support. In a modification, Figs. 11 and 15 (not shown), the casing of shaver 100 comprises two sections 101, 102 of moulded plastic secured in face-to-face relationship by clips 144 and screws 145, the section 102 comprising means for mounting thereon the cutter assembly 38 and electric motor 106. In a further modification, Figs. 20 and 22 (not shown), shaver 160 comprises a T-shaped support 161 of moulded plastic, the cutter assembly 199 being secured to the head 161a of the support and the electric motor 163 being secured to the leg of the support. The support is secured to the casing 208 by screws 193.
Patent GB-504453-A (GB)
Title: Improvements in or relating to pencils
IPC: B43K19/16
Filed: 1938-12-12
Abstract: 504,453. Pencils. SALINS, M. LAMEZAN-, HARDTMUTH, F., FRANKENSDORF, F. HERRING-, FRANKENSDORF, J. HERRING-, HARDTMUTH, SEN., A., HARDTMUTH, JUN., A., and ROHEN, M. DE. Dec. 12, 1938, No. 36225. Convention date, Jan. 14. [Class 146 (iii)] The ends of pencils, particularly copying- ink pencils, are coated by spraying with a lacquer to protect the leads against the effects of damp. The spraying is preferably effected at both ends simultaneously and may be carried out after the pencils have been bundled.
Patent GB-1064102-A (GB)
Title: Improvements relating to electrodes for electric arc welding of cast iron
IPC: B23K35/365
Filed: 1964-09-04
Abstract: A coated electrode for cold welding cast iron consists of a Fe/Ni core and a coating containing:-  .Alkaline earth metals.20-40% by weight .Fluorine.1-10% by weight .Aluminium.3-15% by weight .SiO2.1-10% by weight .Iron.15-40% by weight .CO2.5-20% by weight .C.5-20% by weight  The coating may also contain alkaline silicates, alginates and dextrins as binders and the Fe/Ni core has a composition of Fe:Ni of 40:60 to 60:40. The alkaline earth metals are present as carbonates of Sr and Ca, fluorine as CaF2, iron as the oxide, carbon as graphite and Si as Fe-Si.
Patent GB-741647-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/00
Filed: 1953-12-31
Abstract: 741,647. Knitting-machines. BEAR BRAND HOSIERY CO. Dec. 31, 1953 [Oct. 13, 1953], No. 36333/53. Class 74 (2). A circular rotary cylinder machine has the outer wall of the fabric take-down drum 28 flared downwardly. The drum is mounted in a cage 27 attached to a cylinder mounted within the needle cylinder, so that it is caused to rotate with the needle cylinder and enable the fabric to coil up within the drum as it is knitted.
Patent GB-619426-A (GB)
Title: Improvements relating to lazy tongs
IPC: B25J1/04
Filed: 1946-12-10
Abstract: 619,426. Holding and picking - up tools. GEORGE, I. Dec. 10, 1946, No. 36394. [Class 61 (ii)] A lazy-tongs device particularly for removing flanged containers from saucepans &c. comprises links d connected to arms a and b to form lazy-tongs, a pivot f connecting the links to a tubular member g having a transverse handle h and a thumb or finger piece j slidable therein, lateral projections j<SP>2</SP> being provided on the thumb piece to coact slidably with extensions d<SP>1</SP> on the links. Each jaw comprises two tongues k<SP>1</SP> forming a flattened V bent to channel formation and secured in the channel formation of the arms a and b. The transverse members j<SP>2</SP> operate in a slot g<SP>1</SP> in the tube g and coact with cam-like extensions d<SP>1</SP> of the links d. The member j when forced inwardly causes the tongs to open and on lifting a jar by the insulated handle h the jaws k close automatically.