baber/WOPTO huggingface dataset:
Patent GB-280033-A (GB)
Title: Improvements in rotary drill bits
IPC: E21B10/42
Filed: 1926-11-09
Abstract: 280,033. Reed, C. E. Nov. 9, 1926. Drills.-In a rotary drill bit, particularly a flat fish-tail bit, the cutter 8 is secured in the body 1 by means of wedges 6 which pass through elongated slots in the body and the shank 7 of the cutter and are forced inwards by plugs 5 screwing in the body. The shank has a parallel and a tapered portion for fitting a socket in the body and the cutter has upwardly tapering sides 9 which engage a tapered recess 10 in the body to transmit the driving torque. The body and cutter are both of substantially flat cross-section, but the former has a central enlarged portion 1<a>. The usual passages 12 for fluid circulation are provided and a slot 13 provides for ejection of the cutter.
Patent GB-754516-A (GB)
Title: Electric dry shavers
IPC: H02K33/04
Filed: 1954-09-29
Abstract: 754,516. Dry shavers. APAG APPARATEBAU AKT.-GES., GOLDACH. Sept. 29, 1954 [Nov. 24, 1953], No. 28129/54. Class 131. [Also in Group XXXV] In an electric dry shaver comprising a stator and an oscillatable armature, both of laminated construction and disposed in complementary shells of a casing, the armature is articulated on a pin extending between the shells and on which annular, resilient pads separating the stator and the armature from each of the shells are mounted, symmetrically disposed laminations of the stator being formed with extensions directed away from the pin and engaging the respective shells. As shown, shells 1, 2 of the plastic casing are secured together by bolts 6, 7, 8 to clamp the cutter screen 12 and compress the angled-off rubber-capped ends 18 of resilient extensions 16 of the central laminae of the stator 13 which are engaged in recesses 17 in the shells. A tension spring 21 presses the stator and ascillating armature 15 against a pivot pin 19 the slotted ends of which pass through rubber discs 20 to engage in bores in the shells. Stroke-limiting rubber buffers 31 co-act with projections 28 on a cap 2 of nylon, &c. connecting the armature with the cutter 33.
Patent GB-1022980-A (GB)
Title: Production of 1,1,2-trichloroethane
IPC: C07C17/10
Filed: 1964-07-09
Abstract: 1,1,2 - Trichloroethane is made by feeding chlorine and 1,2-dichloroethane into a liquid reaction medium together with an amount of ethylene such that the chlorine : ethylene molar feed ratio is at least 3.5 : 1.  It is preferred to use a 1,2-dichloroethane : ethylene molar feed ratio of at least 15 : 1. Suitable reaction media are halogenated aliphatic hydrocarbons, CS2, SO2Cl2, chlorobenzene and benzene; it is preferred to use a mixture of trichloroethane and 1,2-dichloroethane.  Suitable reaction temperatures are those in the range 180-260 DEG  F.  The temperature and pressure are usually regulated to avoid substantial volatilization of trichloroethane from the liquid body, the trichloroethane being recovered by distilling portions of the reaction medium which have to be drawn off.  It is also preferred to control the rate of the ethylene so as to prevent chlorine from escaping from the reaction medium. The process is illustrated by reference to schematic drawings (not shown).
Patent GB-1374644-A (GB)
Title: Process for producing alpha,beta-unsaturated ketones and alcohols from bicyclic dompounds
IPC: C07C27/12
Filed: 1972-06-16
Abstract: 1374644 α,#-Unsaturated ketones and alcohols from bicyclic compounds INTERNATIONAL FLAVORS & FRAGRANCES Inc 16 June 1972 [21 June 1971] 28342/72 Heading C2C Bicyclic compounds of formula where R 1 , R 2 , R 3  and R 4  are C 1 -C 6  alkyl, X is -CHR 5 - or -CHR 5 -CHR 6 -, Y is -CHR 7  or -CHR 7 -CHR 8 -, and R 5,  R 6 , R 7  and R 8  are hydrogen or C 1  to C 6  alkyl, are oxidized with oxygen (either pure, as air, or admixed with inert gases such as nitrogen, argon or helium), in the presence of up to 20% by wt. of a metal organic salt catalyst containing a metal having an atomic number of from 24 to 30 to give α,#-unsaturated ketones and alcohols of formulae These compounds are used as perfume compositions.
Patent GB-638224-A (GB)
Title: Protecting device for band-saws, circular saws, spindle moulding machines and other uses
IPC: B27G21/00
Filed: 1947-10-23
Abstract: 638,224. Machinery guards. CARN, P. Oct. 23, 1947, No. 28398. Convention date, Nov. 9, 1946. Class 80 (iv)] A guard for band saws, circular saws, milling machines and the like comprises a guard member 14 vertically slidable between rollers 16 and supported by rollers 15 thereon riding in tracks 13a of levers 13 pivoted on a spindle 12. A cam lever 5 pivoted on a spindle 4 in front of the guard is actuated by the work piece 6 and turns the levers 13 by means of a chain 11 passing round sprockets 9, 10, mounted on the spindles 4, 12. respectively. As the levers 13 turn the guard 14 is lifted to allow the work to pass underneath. A resilient lever 17 having a stop nose 17a and displaceable by the work prevents the guard being raised when no work is present. Should the operator attempt to displace the guard whilst work is being done the guard will move downwardly pivoting the levers 13 and cam 5 and thus causing the latter to brake the work since it lies on the surface of the work and is tangential thereto. The guard member 14 and adjacent parts may be of transparent material. Additional side guards may also be used.
Patent GB-287195-A (GB)
Title: Improvements on wheels and other mechanical appliances where superimposed balls or other rotary units have been directed to transmuting shock and as rotary motion transmitting it as propulsive power
IPC: B60B9/00
Filed: 1926-11-11
Abstract: 287,195. Muir, J. Nov. 11, 1926. Securing wheels on shafts.-A shockabsorbing device of the kind described in Specification 8957/05, shown applied to a vehicle wheel but stated to be applicable to bearings or other mechanical devices, is modified by (a) the provision of an annular space b between the sleeve c on which the loosely-packed balls d are supported, and the axle a ; (b) the provision of one or more auxiliary ball-chambers h the dimensions of which can be varied by means of screw-plungers i; (c) the provision of an arm l on the hub-plate j to engage an eccentric m looselymounted on the wheel e-stated to prevent sudden application of the driving-torque; and (d) the hub-formation providing a ball-chamber wider than the wheel. The sleeve c is free to move in annular slots in the hub-plates j; clearances f being also provided in the wheel to permit displacement of the bolts g.
Patent GB-423912-A (GB)
Title: System for the rapid transforming of open automobiles of the torpedo, spider and like types, into closed automobiles, and vice versa
IPC: B60J7/06
Filed: 1934-10-04
Abstract: 423,912. Vehicle opening-tops. LOVADINA, M., 21, Via A. Fusinato, Padua, Italy. Oct. 4, 1934, No. 28480. Convention date, June 26. Addition to 368,889. [Class 108 (i)] In the vehicle opening-top described in the parent Specification the rising rear frame is adapted for use on different types of cars including streamline shape, the fabric cover is formed of layers of material with embodied ribs or arches, and when in closed position tensioned to the proper degree and the lateral edges of the cover are adapted to be clamped in movable gutters. The rear frame 22 is adapted to be raised by a lazy tong device 39 and the cover unrolled and secured to the top 5 of the windscreen by spigots and sockets 19, 20 a cam and lever device 6.. 9 being provided for tensioning it. The cover comprises an outer layer 10, inner lining 13 and layers of fabric 11, 12, 14, Fig. 6A, with ribs or arches 15 encased in a metal frame 16 placed between the layers and positioned or spaced from one another by kapok 12<1>. A metal frame is incorporated in the cover to assist folding. The ribs 15, 16 slide on recessed parts 2 on the side edges or longitudinals 1, of the roof, and the lateral beaded edges of the cover are positioned in gutters 3 the walls of which are caused to clamp the lateral edges of the cover by spring levers. In streamline bodies the rear frame is arranged obliquely and may be slid into position obliquely by rack and pinion or it may be raised vertically into position, the rear view window not being on the frame being arranged to be raised into position automatically with the frame or opened to act as a ventilator.
Patent GB-669444-A (GB)
Title: Improvements relating to ice rinks
IPC: E01C13/10
Filed: 1949-11-07
Abstract: 669,444. Ice skating-rinks. LIDSTONE, R. I., and LIDSTONE, B. Aug. 18, 1950 [Nov. 7, 1949], No. 28516/49. Class 20(i) [Also in Group XIII] A method of producing an ice skating rink comprises freezing water to form an ice layer 11 on an assembly of independently refrigerative units, each of which can be removed from the assembly whilst maintaining the ice layer .11 on the other units. Water is sprayed on to. the flat surface formed by metal plates 7 of the units, the edges of which abut, the joints between adjacent units being sealed by the ice 11. In one embodiment, each unit comprises brine coils 1 on a metal plate 2 bolted to a base 3, with cork 4 intervening. The metal plate 7 is soldered to the coil 1 and rests on ribs 41 on the plate 2 which has upstanding side flanges 8. The cork 4 is encased in metal 40. The ends of the coil 1 are taken out through the cork 4 and base 3 to swivel connections 5, 6 which are connected by flexible pipes 17, 18 to a refrigerant header and manifold respectively. Wheels or rollers may be attached beneath the base 3, and an upstanding frame surrounds the assembly. In a modification, Fig. 3, the coil 1 is dispensed with, the refrigerant emerging through adjustable jets in a pipe 28 into the space between the plates 2, 7, ribs 24 in the space directing the refrigerant to an outlet at the far side of the unit. Bolts 26 passing through the ribs 24 secure the plate 7 to the base 3.
Patent GB-616938-A (GB)
Title: Improvements in or relating to universal joints
IPC: B62D7/16
Filed: 1946-09-24
Abstract: 616,938. Ball-and-socket joints. THOMPSON PRODUCTS, Inc. Sept. 24, 1946. No. 28517. Convention date, Oct. 22, 1945. [Class 65 (ii)] A ball - and - socket joint comprises a tapered socket 11, a ballended stud 21, rigid ball seats 25 having outer walls which taper in the same general direction as the socket, and a resilient bushing 34 surrounding the seats and fitting snugly in the socket. The seats, which are made of plastic material or of self-lubricating metal, are separated by longitudinally disposed gaps 33. A spring 35 is interposed between the seats and a closure plate 16. A dust cap 36 is provided.
Patent GB-922395-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: SMITH FRANCIS EDMUND
IPC: B60C15/06
Filed: 1958-09-05
Abstract: 922,395. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Aug. 27, 1959 [Sept. 5, 1958], No. 28524/58. Class 144 (2). A pneumatic tyre bead filler 5, Fig. 1, or chafer 25, Fig. 4, comprises one or more layers 5a, 5b (25a, 25b) each comprising a spiral winding of rubberized steel, rayon, cotton, nylon or silk cord 8 and disposed in, or at an acute angle to, the plane of the associated bead core 2 and extending radially outwardly therefrom. Fig. 1 shows a two-layer bead filler disposed between rubber apex strips 3, 4 and following the contour of the side wall radially outwardly of the bead core, the layer 5b extending beyond layer 5a. In alternative constructions, the filler may be wound integrally with the bead core 2, or may be disposed on the axially inner face of the bead core to extend radially inwardly to the bead toe. Fig. 4 shows a two-layer chafer extending from the bead heel radially outwardly across the axially outer face of the bead core 21 and apex strip 22, axially outwardly of the carcase ply cords 24.
Patent GB-245898-A (GB)
Title: Improvements in and relating to transformers and choking coils, especially for use in radio communication
IPC: H01F19/02
Filed: 1924-11-29
Abstract: 245,898. Lissen, Ltd., and Richardson, R. P. Nov. 29, 1924. Transformers. - A transformer for use in radio receiving apparatus is provided with an opening in its core in which is disposed a resistance of the carbon pile type adapted to be connected across the secondary winding. The core 1 is of the hedgehog type and embraces the windings 2 on a spool 3, the whole being disposed within an insulating or metal casing 4 having a removable bottom 5 and an integral top which is apertured to receive a screwed bush 6 carrying the resistance and serving ,as a means for securing the device to the panel of a wireless set. The resistance comprises carbon granules or discs 9 disposed between metal end pieces 8 in an insulating tube 7 and is adjustable in value by means of a screwed rod 10. The end pieces 8 may be connected directly to the winding or may be connected to separate terminals on the casing 1.
Patent GB-1113624-A (GB)
Title: Improvements in yachts or boats
IPC: B63B3/38
Filed: 1965-07-07
Abstract: 1,113,624. Sailing yachts; keels. K. HORNIG. 7 July, 1965, No. 28714/65. Headings B7A, B7M and B7S. A sailing yacht comprises a deep stabilizing keel 3, Figs. 1 and 8, which carries a ballasting body 5 that can be detached when for example the yacht capsizes. The ballasting body may be constituted by a pair of shells 11, 12 contaming a heavy core 20 and secured to the keel 3 by pairs of bolts 13, 14 that can be withdrawn by pulling ropes or chains 18, 19 upwardly from within the hull 1. The shells 11, 12 are attached to the core 20 by pins or bolts 22 and are located relative to the keel and each other by a plurality of keys 21. Alternatively, the keel carries a ballasting body 103, Fig. 9, which is secured by bolts 119 connected by ropes 108, 109 to pistons (129), Fig. 11 (not shown), within cylinders 116, 117, the pistons being pushed upwardly to withdraw the bolts by water compressing air-filled flexible chambers, or pressure bodies 111, 112, when the yacht capsizes and water enters the hull. The said chambers provide buoyancy when the yacht capsizes and are formed in flexible outer hoses (123, 127) surrounding inner hoses (124), which contain the ropes 108, 109. The ballasting body may be fixed to the keel and detached therefrom when necessary by detonation of explosive charges situated in the keel.
Patent GB-345647-A (GB)
IPC: C23C8/00
Filed: 1929-09-23
Abstract: Articles to be nitrogenized are made from iron alloys containing 0,7-2 per cent of carbon, less than 0,5 per cent of aluminium and a total of 0,2-8 per cent of one or more of the elements silicon, manganese, nickel, chromium, copper, molybdenum, tungsten, titanium, and zirconium.
Patent GB-174142-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A44B6/00
Filed: 1920-10-12
Abstract: 174,142. Botteschi, A. Oct. 12, 1920. Straps and bands.-A lever clip a adapted for lateral attachment to the edge of the shirt front is combined with an elastic connection d of known form fitting over a button on the trousers or pants. The clip, which may also serve for the tie, has projections c which are turned over to embrace the ends of the elastic part d.
Patent GB-1214482-A (GB)
Title: Improvements in or relating to electronic motor speed control
Inventor: MERRETT John
IPC: H02P7/292
Filed: 1967-06-22
Abstract: 1,214,482. Automatic speed control. MULLARDS Ltd. Jan. 8, 1968 [June 22, 1967], No. 28908/67. Heading G3R. [Also in Division H2] A D. C. motor 1 is supplied through a thyristor network whose trigger circuit receives signals from a tachometer generator 2 and a reference potentiometer 23 for speed regulation of the motor. Initially, the input voltage applied to a trigger module MY5011 is held at a finite value by means of a diode clamp D22 so that the motor receives some current and is permitted to rotate. A voltage proportional to the speed of the motor is derived from the tachometer generator and is applied through resistors R1, R5, R3, to the base of a transistor TRX which raises the voltage clamping the input to the trigger module and so permits an advance in triggering angle. The feed from the tachometer generator to the base of the transistor TRX is provided with D. C. level adjustment by zener diode D1 and potentiometer R1. For inching, the motor is stopped by closing a switch to short circuit the base of transistor TRX to its collector. On opening this switch, the circuit returns to normal operation at the set speed. A time delay circuit C1, R4, removes sudden surges at the base of the transistor. In addition an initial surge suppression circuit comprises capacitor C12 which is uncharged when the supply is first connected. Transistor TR2 is then non-conductive so that the input to the module MY5011 is clamped by the diode D22 to limit the motor current to a safe value. As the capacitor C12 charges, the thyristor trigger angle is slowly advanced to allow the passage of more armature current. In a modification, the speed of the motor is detected by an armature voltage network, Fig.2 (not shown). This comprises resistors and a capacitor which is adjusted to balance the inductance of the armature. A unit A measures and rectifies the input current, a unit G providing a signal to transistor TR1 for limiting the motor current. A transient suppression circuit B is associated with thyristor bridge C, whilst a diode rectifier D supplies motor field 3 which has a protection and speed-compensating circuit E. The output of circuit E is fed to transistor TR1. Unit  F compensates for speed changes due to variations in motor current.
Patent GB-496611-A (GB)
Title: Basic derivatives of fatty acids and a process for their manufacture
Filed: 1937-10-22
Abstract: Basic compounds are prepared by heating hydroxylated aliphatic polyamines obtained by condensing hydroxyalkylamines with : a -g glycerindichlorhydrin or epichlorhydrin, with a fatty acid containing at least eight carbon atoms or an ester thereof at a temperature of 150-250 DEG  C., and converting the resulting products into soluble salts.  The latter are stated to have wetting, foaming, cleansing and softening properties and may be used for increasing the fastness of substantive dyeings since they form insoluble addition products (lakes) with substantive dyestuffs. In examples: (1) monoethanol-amine is condensed with a -g -glycerindichlorhydrin and the product heated with coconut fat, olive oil, castor oil, hardened fat, beef tallow and a naphthenic acid mixture: the basic products are converted into salts with acetic or lactic acid; (2) diethanolamine is condensed with a  : g : glycerindichlorhydrin and the product heated with coconut fat, hardened fat, spermacetti, and stearic acid and then converted into salts: (3) hardened fat is heated with a hydroxylated polyamine obtained by condensing monoethanolamine with a  : g -glycerindichlorhydrin at 130 DEG  C. and again condensing with a  : g -glycerindichlorhydrin at 125 DEG C. after adding caustic soda and driving off water.  The use of wool fat is mentioned.  The Specification as open to inspection under Sect. 91 comprises also the use of triethanolamine and propanolamines in the preparation of the hydroxylated aliphatic polyamines and states that the use of higher temperatures produces quaternary-polyamines such as [ClN(C2H4OH)3CH]2CHOH.  This subject-matter does not appear in the Specification as accepted.
Patent GB-701149-A (GB)
Title: Hydraulic servo motor and control valve therefor
IPC: F15B9/10
Filed: 1949-03-28
Abstract: 701,149. Fluid-pressure servomotor-control systems; valves. NORTHROP AIRCRAFT, Inc. March 28, 1949 [March 29, 1948], No. 28978/52. Divided out of 701,092. Class 135 In a modification of the control valve described in Specification 701,092, for controlling the servomotor of a fully-power-operated control system actuating the control surfaces of aircraft, the body of the valve having the inlet and exhaust ports 60, 51 and the motor ports 117, 118 slidably mounts a composite spool 100. The spool comprises an outer sleeve 110, an intermediate sleeve 112 screw-threadedly secured thereto, and an inner sleeve 111 slidable in and movable relative to the sleeve 112. Lands 102 on the outer sleeve 110 are formed with bevelled faces 105 which, as in the case of the flow-holes, in the neutral position of the spool permit a restricted flow of pressure liquid to and from opposite sides of the servomotor piston to preload the piston. According to Specification 701,092 valve spools having bevelled lands are more susceptible to jamming than those having square-edged lands, and in the present case to prevent hydraulic lock in the motor cylinder in the event of a spool jamming, spring-loaded pressure release valves 127 are slidably mounted in the sleeve 112 and separated by a floating ring 125. The valves co-operate with seats formed on the outer and intermediate sleeves and are restrained from outward movement by snap rings 131 surrounding the inner sleeve. The valve springs 128 are of such a strength that under normal pilotoperating loads they act as solid members to transmit load from the inner sleeve to the intermediate and outer sleeves to operate the valve. Should the outer sleeve jam larger loads will be applied by the pilot in an attempt to free it, hence one or other of the valves 127 will be unseated by engagement with its associated snap ring and free flow of pressure liquid will take place from the pressure locked side of the piston to exhaust and so permit idle movement of the piston.
Patent GB-971338-A (GB)
Title: A method of and apparatus for the bacterial disposal of effluent
Inventor: LOWE EDWARD JAMES
IPC: C02F3/04
Filed: 1961-08-11
Abstract: 971,338. Percolating-filters. ALBRIGHT & WILSON (MFG) Ltd. Nov. 2, 1962 [Aug. 11, 1961], No. 29069/61. Heading BID. Effluent flows downwards for bacterial disposal through a filter bed consisting of particles of average diameter 1/16 inch to <SP>1</SP>/ 4  inch and of specific gravity 1 to 2 and the bed is periodically cleaned by interrupting the flow of effluent and passing a fluid through the bed in reverse direction at a rate to fluidize the bed. Untreated effluent introduced at 23 and 18, with optional addition of re-circulated effluent from a pump 13, enters space 14 and with compressed air introduced at 17 passes downwards through a bed 10 to a space 15. It passes thence to a vessel 16 where air escapes and the liquid is discharged as outflow or passes to recirculating pump 13. To clean the bed according to one method, valves 17-19 and 23 are closed and a valve 20 is opened to permit effluent to be fed for distribution at 15 ; alternatively a valve 21 is opened for introduction of water. In either case the liquid passes upwards, the free space 14 permitting the expansion of the bed occasioned by the upward flow. The liquid leaves at 22 and is either re-cycled or discharged from the vessel 16. Preferably a positive air pressure is maintained above the bed. An alternative method of cleaning consists in interrupting the flow of effluent from the bed instead of reversing it ; the bed then fills up with effluent, and air is then blown through it from the bottom to disturb the particles. The preferred bed material is coke, but foamed slag or polystyrene may be used. It is stated to be known to supply a pure liquid under pressure for backwashing to perforated pipes arranged vertically in a trickling filter composed of very fine cinders. Later, air is fed under pressure through another similar set of pipes located between the others. Thereafter the soiled liquid is allowed to rise above the filter bed level and is led away.
Patent GB-726172-A (GB)
Title: Improvements in or relating to production of transparent electroconductive article
Inventor: JUNGE ALBERT EDWARD
IPC: C03C17/25
Filed: 1953-10-22
Abstract: 726,172. Glass. PITTSBURGH PLATE GLASS CO. Oct. 22, 1953, No. 29183/53. Class 56. A glass surface, before the application thereto of a transparent electroconductive coating of a decomposable salt of tin, is heated to above 500‹ F. and is treated with a solution of hydrofluosilicic acid. This reduces the alkali metal oxide content of the surface and prevents haze in the coating.