baber/WOPTO huggingface dataset:
Patent GB-1432612-A (GB)
Title: Drill bit
IPC: E21B10/44
Filed: 1973-04-09
Abstract: 1432612 Drills HAWERA PROBST KG HARTMETALL - WERKZEUGFABRIK RAVENSBURG 9 April 1973 [7 April 1972] 16834/73 Heading B3C A drill comprises a shank 1, Figs. 2, 3, fluted at 2, and a hard metal cutter blade 14 detachably held in a transverse slot 5 in the head 3 of the drill by a pin 26 which is located in transverse bores 8 and 23 in the drill and blade respectively the blade being located in a direction transverse to the drill axes by having the bottom of slot 5 shaped to correspond with the shape of the end of the blade. The two end sections 9, 10, Fig. 4 of the flute are lccated symetrically relative to the blade, and in a modification, Fig. 5 (not shown), there are four groove sections (9a), (10a). Cutter blade 14 is of hexagon shape, is indexable, and a rubber sleeve 24 has an eccentric bore 25, so that when the blade is secured by pin 26, it is urged into a Vee-shaped bottom of slot 5. The cutter blade may only have two cutting points, Figs. 6, 7 (not shown), or it may have a single cutting point 19c, Fig. 10, and be located by a rectangular or circular projection 20c. In a modification, the cutter blade 14d, Fig. 11, is held in the drill by a pin 26d which is located in a part bore 8d in the drill, and engages the bottom of a recess 23d in the blade, so as to urge the latter towards the bottom of slot 5d. In this latter embodiment flutes 2 are replaced by flats (2d) Fig 12 (not shown). In a further embodiment the seat 29, Fig. 13, for the cutter blade is a hard metal insert which may be soldered, pressed, or welded to the drill.
Patent GB-906601-A (GB)
Title: New monoazo triazine dyestuffs
Inventor: MORRIS CYRIL
IPC: C09B62/08
Filed: 1959-05-19
Abstract: The invention comprises dyes of formula <FORM:0906601/IV (b)/1> where A is a phenyl residue which may be substituted, R is a phenylene or carboxy- or sulpho-phenylene residue, X is Cl or Br, m and n are integers and the products must have at least one COOH or additional SO3H group.  The dyes may be made by treating appropriate dyes with cyanuric chloride or bromide or by conventional diazotisation and coupling processes.  When A contains a metallisable group ortho to the azo group copper complexes may be formed.  Complexes may be obtained in situ or on the fibre.  A preferably contains an SO3H group. Representative of specified values for A are phenyl, chloro-, sulpho-, dicarboxy-, nitro-, methoxy-, dimethylamino and acetylaminosulpho-phenyl, 4-(41-nitro- 21-sulphophenylvinyl)- 2-sulphophenyl, 4-(611-methyl711-sulphobenzthiazol-211-yl) -phenyl, chlorohydroxysulphophenyl, tolyl and 41-nitro-41-aminostilbene-2,21-dicarboxylic acid, m and n are preferably 1-5.  Preferably R is sulphophenyl, the preferred naphthol component being 2-(41-amino- 31-sulphophenylamino)-8-naphthol sulphonic acid.  Indicated as metallisable groups are hydroxy, carboxy and alkoxy groups.  Coppering may be effected before or after treatment of the starting dye with cyanuric halide.  The dyes colour cellulosic materials especially when used in con junction with an alkaline treatment as in Specification 797,946. Examples are provided of the preparation of the dyes and their use in colouring processes, brown, red and violet shades being obtained.  In the Provisional Specification the naphthol component may be derived from 2-amino-8-naphthol-3,6-disulphonic acid. Specifications 838,337 and 842,933 also are referred to.
Patent GB-1428987-A (GB)
Title: Fluid velocity measuring apparatus
IPC: A24D1/00
Filed: 1973-04-09
Abstract: 1428987 Flowmeters E J DURBIN 9 April 1973 [8 May 1972] 16946/73 Heading G1N In apparatus for measuring the flow velocity of a fluid of the type in which ionizing means and ion collecting means have a voltage applied therebetween so that ions formed in the fluid flow to the ion collecting means in a direction transverse to the fluid-flow direction and the displacement of the location of impingement of the ions is a measure of the flow velocity, means are provided to make the velocity of ion flow substantially independent of the fluid composition. As shown in Fig. 1, the ionizing means is formed by two electrodes 1, 2 arranged coaxially of a collecting electrode 5 in the form of a wound or deposited resistor in a cylinder 6. The voltages applied to the electrodes by sources 21, 22 are controlled by the rate of ion collection determined by resistor 25, 26. The currrents I 1 , I 2  at the ends of electrode 5 are applied to a differential amplifier 20 whose output is applied to a divider circuit 29 which also receives the voltages across resistors 25, 26. The output of circuit 29 is thus proportional to the differential current divided by the total current which is proportional to the displacement of the ion location from its zero flow position. In modifications, the voltage supplied to electrodes 1, 2 may be from a single source 21, Fig. 2 (not shown), or one of the electrodes 1, 2 may be omitted.  In a further construction, Fig. 3 (not shown) the ion collecting means is in the form of a flat substrate having a resistor wound or deposited thereon. As shown in Fig. 4, the ion collecting means is formed of two plates 51, 52, the differential current provided by amplifier 54 controlling a reversible motor 55 which rotates a screw 56 to displace a nut 57 having the ionizing electrode 58 mounted thereon. The ionizing electrode is thus displaced to maintain the differential current at zero, a pointer 59 then indicating the fluid velocity on a scale 60. The electrode 58 may be arranged to be displaced manually instead of by motor 55. As shown in Fig. 5, the ion collecting means is again formed by two plates 71, 72 separated by a line 30 such that each plate collects a fraction of the ions. A cylindrical ion collecting means may alternatively be provided.
Patent GB-883761-A (GB)
Title: New cyclosteroids
IPC: C07J75/00
Filed: 1958-05-27
Abstract: The invention comprises D 6-3:5-cycloandrostenes which contain a 17b -hydroxyl group and optionally in the 17a -position a hydrocarbon radical of 1 to 4 carbon atoms.  They may be prepared, for example, (1) by reduction of a 3:5-cyclo-17-oxo-androstane compound which contains in the 6:7-position a double bond or in the 6-position an alkoxy group, suitably by means of NaBH4 alone or together with AlCl3 or LiBr, B2H6, LiAlH4, LiAlH(OCH3)3 or LiAlH(Ot-Bu)3; (2) by reduction and concomitant alkylation of the starting materials used in (1), suitably by means of an organo-metallic compound containing a suitable aliphatic hydrocarbon radical; or (3) by converting a D 5-3b -hydroxy-androstene containing a 17b -hydroxy group and optionally a 17a -aliphatic hydrocarbon radical into the corresponding 3:5-cyclo-6-alkoxy-androstane, suitably by treatment of the p-toluene-sulphonic acid ester with an alkali metal salt of an alkanoic acid in the presence of an alkanol, and treating the 6-alkoxy compound with a basic agent such as aluminium oxide. Subsequently, if desired, a 17a -alkyl-or methallyl group may be reduced to a 17a -propyl orisobutyl group, or a 17a -hydroxy group may be esterified.  Examples are given.  D 6-3:5-cyclo-17-oxo-androstene is prepared by treating 3:5-cyclo-6-methoxy-17-oxo-androstene with aluminium oxide in hexane.
Patent GB-1281286-A (GB)
Title: Motor vehicle compartment temperature control circuits
Inventor: ZICKEL THOMAS ADRIAN
IPC: B60H1/00
Filed: 1970-04-09
Abstract: 1281286 Electric motor control GENERAL MOTORS CORP 9 April 1970 [30 April 1969] 16968/70 Heading H2J [Also in Division G3] In a control circuit for a fan motor 7 (Fig. 2) controlling the temperature of a motor vehicle compartment, an electromagnet 16 functions to open contacts 11, 13 while a vacuum motor 24 acts to close them. The open and closed periods of the contacts determines the average motor current and hence the fan motor speed and is dependent upon the vacuum supply to the vacuum motor (e.g. from an engine induction manifold), the contacts when closed shorting a resistor 8 in series with the motor 7. The effective value of the resistor 8 determines the minimum fan speed. The fan blows air through ducts into the passenger compartment and this air may be heated or cooled by suitable means (not described). The vacuum supply is modified in accordance with the actual value of the compartment temperature in a known manner not described. The desired temperature is pre-set on resistor 8.
Patent GB-790996-A (GB)
Title: Process for generating turbulence in the combustion chamber of an internal combustion engine
IPC: F02B3/06
Filed: 1954-06-10
Abstract: 790,996. Fuel-injection engines. GALLI, E., RAPALLI, V. U., and RENOLFI, V., [trading as MONDIAL PISTON CO.]. June 10, 1954, No. 17022/54. Class 7(3) The end wall of the piston 2 of a fuelinjection engine is provided with a small cavity 4‹ into which the end of the injector 1 projects at top dead centre, the air displaced therefrom serving to keep the nozzle tip clean. The combustion chamber 3 is octagonal and the cavity 4‹ is formed in a projection 4 either integral with or attached to the piston
Patent GB-1507153-A (GB)
Title: Metal grinding and cutting aids and methods of their use in the machining of metals
IPC: B24B1/00
Filed: 1975-04-24
Abstract: 1507153 Lubricants J C J WIRTH 24 April 1975 17052/75 Heading C5F [Also in Division B3] A grinding or cutting aid composition comprises potassium nitrite, sodium nitrate, potassium nitrate, lithium nitrite, lithium nitrate, potassium dichromate, or mixtures thereof, or mixtures thereof with sodium nitrite mixed with a waxy or oily vehicle other than paraffin.
Patent GB-447453-A (GB)
Title: Improvements in or relating to electric heating installations
IPC: F24D13/02
Filed: 1935-06-13
Abstract: 447,453. Tin articles. HASSELBLATT, M. E. N., 66A, Tatari, Tallinn, Estonia, and VENESTA, Ltd., Vintry House, Queen Street Place, London. June 13, 1935, No. 17079. [Class 83 (ii)] [See also Groups XI and VIII] Tinfoil in the form of sheet or strip is used as an electric resistance.
Patent GB-164968-A (GB)
Title: Improvements in clothes washing machines
IPC: D06F23/04
Filed: 1920-06-24
Abstract: 164,968. Negrescou, J. June 24, 1920. Washing-machines with plungers having both rotary and axially-reciprocating motion. - The clothes contained in a perforated drum 16 are washed by suction cups 29 mounted on a vertically reciprocated rod 24 given a twisting movement at the end of its downward travel. By shifting the driving-belt 72 to a pulley 66 the rod may be rendered inactive and the drum rotated to extract the liquid centrifugally. The plunger rod 24 is slidably mounted in a bracket 32, the upper arm 31 of which contains a pair of balls 36 engaging a helical groove 38 in the rod to impart a slight twist to the rod towards the downward limit of its travel in order that the basket may move round to bring fresh portions of the work into position to be pounded. The rod is vertically reciprocated by arms 48, 49 pivoted at 47 and engaging by pins 60 in slots 62 on the rod. The arm 49 is driven by a crank pin 46 on a disk 44 rotated by worm gearing 41 and a hollow shaft 39 from a motor 70 through the belt 72 and pulley 40. The crank-pin works between the arm 49 and an adjacent arm 51 pivoted also at 47 and connected with the arm 49 by a rod 55 and spring 57, thus preventing excessive strain on the driving-parts when the plunger meets with too much resistance. Within the shaft 39 is another shaft 65 provided with the pulley 66 and adapted to drive through bevel-wheels 15 a stirrup 9 carrying the drum 16. The belt 72 is shifted from the loose pulley 68 to the fast pulleys 40, 66 by a hand-lever 79 pivoted at 80 and provided with a spring-depressed sliding extension 85 which engages a perforated plate 86 to hold the lever in any one of its three positions and is operated to release the lever by means of a bar (not shewn) within the grip 82. The toothed sector-shaped arm of the lever gears with a slidable bar 73 carrying the belt guide. In order to prevent actuation of the plunger rod when the belt is on either the loose pulley 68 or the drumrotating pulley 66, a shaped edge 90 on the arm 48 is engaged by a roller 89 on an arm 88 of the lever 79 when this is in either of the two corresponding positions; but when in the position shown in Fig. 3, a cut-away portion 91 permits reciprocations of the arm 48. Depending from the tub 1 is a rotary pump 92 arranged to supply liquid from a tank 97 to the tub at will. This pump is driven by the belt 72 when this is pressed against a pulley 94 on the pump spindle by a pulley 100 mounted on a bell-crank lever operated by a lever 105 through a rod 101. The lever 105 is slotted at 108 to receive the hub of the handlever 79 and the slot and hub are so shaped and arranged as to prevent operation of the pump except when the belt is on the loose pulley. The tub, which may be heated by a gas burner, is provided with a rotary emptying cock, the outlet spout 115 of which may be turned to discharge either into the tank 97 or into a funnel-shaped pipe 117 leading to a waste-pipe 119.
Patent GB-640464-A (GB)
Title: New hydroxy fatty acid estolide ester-ethers
IPC: C11C3/00
Filed: 1947-06-30
Abstract: Hydroxy fatty acid estolide ester-ethers are manufactured by heating the estolides of hydroxy fatty acids containing a chain of at least seven carbon atoms in the molecule with ethylene oxide, ethylene glycol and/or polyethylene glycol or ethylene halogen hydrins in the presence of alkaline catalysts such as sodium, potassium or calcium or their hydroxides or acidic catalysts such as boron trifluoride and aluminium chloride.  Normal or elevated pressure may be used.  The proportion of ethylene oxide employed should be just sufficient to give a product completely soluble in boiling water.  The hydroxy fatty acid estolides may be obtained by heating hydroxy fatty acids under reduced pressure, optionally in the presence of an alkaline catalyst.  In examples: (1) to (4) ricinoleic acid is converted to the estolide by heating with sodium hydroxide under reduced pressure. Ethylene glycol is then stirred in for 3 hours whilst heat and pressure are applied.  The products are used as anti-foaming agents in glue solutions, paper making and in boiler feed water.  In example (5) the product of example (1) is mixed with anhydrous sodium carbonate as a boiler feed water additive.  Specifications 11741/13, [Class 2 (iii)], and 602,726 are referred to.ALSO:Ester-ethers of the estolides of hydroxy fatty acids containing a chain of at least seven carbon atoms in the molecule with ethylene glycol and/or polyethylene glycol are employed as antifoaming agents in glue solution, paper making and in boiler feedwater.  They may be added to the latter alone or with other boiler feedwater additives such as carbonates or phosphates. Ricinoleic estolide ester-ethers prepared in examples (1)-(4) are stated to be antifoaming agents in glue solutions and paper making, and in example (5) the product from example (1) is mixed with anhydrous sodium carbonate to form a boiler feedwater additive.  Specification 11741/13, [Class 2 (iii)], and 602,726 are referred to.
Patent GB-111352-A (GB)
Title: Improvements in Medical or like Syringes.
Inventor: CAULFEILD ALFRED HANS WARING
IPC: A61M5/178
Filed: 1916-11-30
Abstract: 111,352. Caulfeild, A. H. W. Nov. 30, 1916. Syringes.-To enable piston syringes to be sterilized by heat without removing the piston, the barrel 2 is provided with an enlargement or chamber 3 at the rear end, in which the piston is a loose fit. The enlargement may be formed as an extension of the barrel, which may be of glass, silica, or other transparent material, or a metal &c. tube 4 may be connected to the barrel. The cap 6 through which the piston-rod passes is removable.
Patent GB-742611-A (GB)
Title: Improvements in cycle stands
Inventor: ODONI BRIAN PHILIP
IPC: B62H3/08
Filed: 1953-06-22
Abstract: 742,611. Cycle stands. ODONI & CO., Ltd., A. A. June 22, 1954 [June 22, 1953], No. 17248/53. Class 136 (1). A double-sided front wheel bicycle stand comprises a rectangular base frame A provided with a pair of spaced parallel bars C joining opposite sides of the frame and a series of uprights D bolted or otherwise joined to the bars C forming an anchorage for one end of an arcuate member 1, 2, 3 or 4 of channel section to receive the wheel and grip the tyre of the cycle, the other end of the channel member being welded to the other bar C or to an upright D. The base frame A is provided with uprights B to support a roof.
Patent GB-129681-A (GB)
Title: Improvements in Controlling Gear for Aeroplanes.
Inventor: LETORD EMILE
IPC: B64C13/24
Filed: 1917-11-23
Abstract: 129,681. Letord, E. Aug. 12, 1916, [Convention date]. Steering and balancing.-In a dual control gear for aeroplanes, the rear control lever is constructed so that it may be turned down out of the way when not in use, in order to allow free movement of the second pilot for operating a gun &c. Control levers 1, 2 are movable about pivots o, o<1> for operating the elevators, and are fit. ted with hand-wheels A, B controlling cables 7 leading to the ailerons. The rear lever 2 is jointed at 6 so that it may be turned down into a fixed spring .socket. When the lever 2 is required for use, the joint 6 is covered by a sleeve 9. The lever 2 is connected to its pivot o<1> by an arm a<1>.
Patent GB-639761-A (GB)
Title: Improvements relating to electric lighting fittings
Inventor: GAUGHAN MARTIN
IPC: F21V17/00
Filed: 1948-06-28
Abstract: 639,761. Electric lighting fittings. BRITISH THOMSON-HOUSTON CO., Ltd. June 28, 1948, No. 17334. [Class 75 (iv)] In an electric lighting fitting having a framework with a rectangular light-transmitting screen 6 mounted flush within its mouth, projecting locating means (conical headed bolts 8) are provided on the outer surface of the screen adjacent at least one pair of its parallel edges, and the extension N of the screen beyond the locating means is reduced to the minimum required to retain the screen within the framework, thereby allowing the screen to be removed through the framework mouth with a minimum of tilting. As shown a reflector 3, forming part of lighting fitting housed within a recess in a ceiling 1, has a rectangular rim 5 on which the screen 6 is supported along one pair of its edges. The locating bolts 8 are spaced along the screen and each has a cylindrical headportion 9, of slightly greater depth than the thickness of the rim 5, from which the conical head-portion extends, the lateral distance between the outer edges of the head-portions 9 being substantially equal to the width M of the reflector mouth. One or more bolts 8 may be attached to the reflector by a chain 10 to prevent accidental droppage during its removal. The screen 6 may be of glass or thermoplastic material and the locating bolts 8 may be replaced by V- section ridges formed on the screen. Alternatively the edges of the screen may be pressed upwardly and flanged outwardly to give a shallow-dish formation.
Patent GB-613225-A (GB)
Title: Centrifugal pumps
IPC: F04D9/04
Filed: 1946-06-11
Abstract: 613,225. Centrifugal pumps. HATHAWAY, L. June 11, 1946, No. 17355. Drawings to Specification. [Class 110 (i)] A centrifugal pump has a manually-operable priming pump directly supported from and communicating with the inlet side of the centrifugal pump. The priming pump may be of the reciprocable type and it may communicate with the inlet side of the centrifugal pump through a one-way valve. Specification 613,226, [Group XXVIII], is referred to.
Patent GB-1509423-A (GB)
Title: Measurement systems
IPC: G01D3/02
Filed: 1975-04-28
Abstract: 1509423 Impedance measuring bridges INSTRUMENTFIRMAN INOR AB 28 April 1975 [26 Sept 1974] 17565/75 Heading G1U To linearize the response of a measuring network including an impedance varied by an external parameter, a change in potential at the junction of the variable impedance with another impedance, with respect to a reference potential is used to control the voltage impressed across the two impedances. In a resistance bridge containing a temperature sensitive resistor R1, the amplified difference voltage is applied to a voltage-to-current converter O which supplies the bridge current via R 1 and R3 and a feedback current via a constant voltage sink S (e.g. a Zener diode) and resistor R5, a further resistor R6 thereby producing a counteracting potential change in the arm R1, R2. It is shown that in this arrangement, as R1 increases its resistance, the current delivered by the voltage source V increases disproportionately at higher values, and by selecting R5, the response can be made to match the non-linear resistance/temperature characteristic of the resistance R1.
Patent GB-343851-A (GB)
IPC: B60J7/06
Filed: 1930-06-06
Abstract: 343,851. Road vehicle bodies and hoods. HEEREN, A. DE, Villa Elizaquirre, San Sebastian, Spain, and ORNELLAS, T. V. D', ChÔteau de Thouars, Talence, Gironde, France. June 6, 1930, No. 17586. Convention date, June 6, 1929. Addition to 313,526, [Class 108 (i), Road vehicles, Body details &c. of]. [Class 108 (i).] In the road vehicle described in the parent Specification the side grooves for the sliding cover are made integral and oscillatable about longitudinal axes, the cover comprises two superposed layers, the cover and grooves are operated and controlled by cam shafts and a suction motor and the front cross rail of the vehicle is made hollow. The side grooves W, Fig. 2, are pivoted at p and are oscillated by means of cams b<l> operated from the cam shaft shown in Fig. 5. This cam shaft is also used to control a suction motor to draw the cover forward by means of the cord z<l>, the cams C<2>, C<3> operating valves S<11>, S<111> to place the cylinder in communication with the engine or the atmosphere. The cover comprises two superposed layers wound on separate rollers r, r<1>, the lower layer being provided with slats l, l<11> by means of which the cover is transversely bowed. The front cross rail is formed of sheet metal and of hollow construction.
Patent GB-106434-A (GB)
Title: Improvements in or relating to Automatic Stop Mechanism for Yarn Winding Machines.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B65H63/02
Filed: 1916-12-07
Abstract: 106,434. Jackson, W. J. Mellersh-, (Altemus, J. K.). Dec. 7, 1916 Winding-machines; stop-motions; stop-apparatus, non-automatic.-In a yarn-winding machine comprising a gain mechanism operated by a screw controlled by a ratchet-fed shaft carrying a gear meshing with a gear on a, nut on the screw, means is provided to stop the gain mechanism when the end breaks. The screw 4 is carried by the rising and falling rail 3 and has mounted upon it a nut carrying a gear 25 driven bv a gear 24 mounted to slide upon and turn with a shaft 19 operated at the end of each fall of the rail 3 through bevel-gearing from a ratchet and pawl arrangement 13. The nut also carries a loose collar from which project arms 35, 36, and 37. The arm 36 carries the yarn guide 40, which is drawn towards the cop 11 by the tension of the yarn. The arm 37 carries a second guide 41 and a tension device 42. The arm 35 has a slotted or forked end 50 which embraces a guide-rod 38 parallel to the screw 4 and carries, on a bracket 54, a gear connecting the gears 24, 25. When an end breaks. the guide 40 is released and the collar rotates upon the nut 34 carrying the gear 55 out of mesh with the driving gear 24. The slot 50 or fork is made sufficiently broad for this purpose. A hand-' operated lever 22 has cam surfaces at either end which, on the movement of the lever, simultaneously disconnect the drive for the spindle and the bevel-gear for the shaft 19.
Patent GB-1072543-A (GB)
Title: Seal for strapping and the like
IPC: B65D63/06
Filed: 1965-04-27
Abstract: 1,072,543. Seals. STANLEY WORKS. April 27, 1965 [June 2, 1964], No. 17627/65. Heading B6P. A seal of high tensile strength steel for securing together the ends of non-metallic straps is of rectangular shape as seen in developed plan view, and of approximately M-shape in crosssection as shown in Fig. 3, which also shows the strap ends 14, 16. The underside of the seal is formed with parallel gripping portions 30, Figs. 2 and 4, each pair of portions 30 defining a groove 32 therebetween.