baber/WOPTO huggingface dataset:
Patent GB-1143897-A (GB)
Title: A process for preparing alkali metal alcoholates and phenolates
IPC: C07C35/46
Filed: 1968-02-08
Abstract: 1,143,897. Alkali metal polyhydric alcoholates and phenolates. METALLGESELLSCHAFT A.G. 8 Feb., 1968 [17 Feb., 1967], No. 6336/68. Heading C2C. Alkali metal polyhydric alcoholates and phenolates are prepared by reacting under anhydrous conditions an alkali metal alcoholate of a monohydric alcohol containing 1-8 carbon atoms with a polyhydric alcohol or phenol containing up to 6 hydroxy groups and from 2-18 carbon atoms in a liquid reaction medium which is a monohydric alkyl alcohol containing 1-8 carbon atoms, a liquid hydrocarbon containing 5-12 carbon atoms or a mixture thereof and recovering the product from the reaction medium. The concentration of the alkali metal alcoholate may be at least 0À1 molar and the amount of polyhydric alcohol reacted per mole of said alkali metal alcoholate is OÀ5-1 molethereof. The alkali metal employed is sodium, potassium or lithium. In most cases the product of the reaction will be a monoalkali metal derivative although in some cases a dialkali metal derivative can be prepared. The alkali metal alcoholate of the monohydric alkyl alcohol may be formed in situ in the liquid reaction medium by reacting 1 mole of the alkali metal or the hydride thereof with 1 mole of the monohydric alkyl alcohol. Both the reaction between the monohydric alkyl alcohol and the alkali metal and the reaction between the monohydric alkyl alkoxide and the polyhydric alcohol preferably take place in an atmosphere substantially free of oxygen, carbon dioxide and moisture such as under an atmosphere of an inert gas such as argon, helium or nitrogen and at elevated temperatures of at least 50‹ C. although the reaction will proceed at room temperature. Examples prepared are the monolithium derivatives of ethylene glycol, 2,2,4,4 - tetramethyl - 1,3 - cyclobutanediol, trimethylol - propane, 2,2 - dimethyl - 1,3 - propanediol, pentaerythritol, 1,2 - propane diol, 1,4 - butanediol, glycerine, 1,2 - cyclohexanediol, 1,12 - octadodecanediol, 2,21 - dihydroxybiphenyl, resorcinol, mannitol, 2,5 - dimethyl - 2,5 - hexanediol, 2,5 -dihydroxy- 2,5 - dimethyl - hexyne, the monosodium derivative of ethylene glycol and the diluthium derivatives of 1,4 - butanediol and 1,3 - propanediol.
Patent GB-156433-A (GB)
Title: Improvements in or relating to detachable rims for vehicle wheels
IPC: B60B23/10
Filed: 1920-03-03
Abstract: 156,433. Saltzman, S. M. March 3, 1920. Tyre attachments to rims; detachable-rim attachments to wheels. -Relates to demountable rims in which a locking-band of wedgeshaped cross-section co-operates with two complementary tyre-engaging rims. The felloe 2 carries a band 3 having a flange 3a against which the tyre carrying rim 4 abuts. The rim comprises two parts 4<b>, 4<c> abutting in the middle and provided with locking projections 5, 5a cooperating with apertures 6, 6a in a transversely split locking-band 7. Projections 5b project through apertures 5<d> on each side of the transverse split and enter sockets 2<a> in the felloe of the wheel. Depending lugs 8, 11 are disposed on the band 7 to co-operate with bolts 9, 12 to secure the whole on the felloe. One lug 8 is opposite the projections 5<b> which act as a pivot in demounting.
Patent GB-889996-A (GB)
Title: Improvements in or relating to the cutting of gear wheels and racks
IPC: B23F5/20
Filed: 1958-02-27
Abstract: 889,996. Gear-cutting. ROMI, G. Feb. 27, 1958 [June 27, 1957], No. 6428/58. Class 83 (3). A method of cutting gear teeth comprises inclining a cutter-carrying rotary spindle 10 at an angle to the axis of the work 9 and traversing the cutter in a direction parallel to the work axis. The upper end of the spindle carries a wormwheel 33 and slides in a bush in a freely moving slide 13 carrying a driving-worm 32 sliding on a splined shaft. The bush may have helical splines for cutting helical gears. A motor 15 rotates the cutter and two gear blanks 9, 9a at predetermined speeds through change gearing in boxes 24, 24a. The change gearing can be so chosen that the number of teeth cut on one gear is different from that on the other. The cutter spindle is carried in a slide 3 formed with a cylinder 127, Fig. 7, engaged by a fixed piston 102 whereby the slide is reciprocated under the control of a valve 101 operated by dogs 115, 116 engaging a lever 112. The spindle 10 is formed with a piston 103 working in a cylinder 128 in the slide 3 and operated simultaneously with the piston 102. The displacement of the cutter 11 by the piston 103 positions the cutter to engage the gear 9 on the downstroke and the gear 9a on the upstroke. In a modification, the cutter 11, Fig. 13a. generates teeth on a rack 50f.
Patent GB-144396-A (GB)
Title: An improved vacuum cleaning system for aggregations of houses and the like
IPC: B65F5/00
Filed: 1919-03-14
Abstract: 144,396. Coke, C. G. March 14, 1919. Mains and pipes.-In a vacuum cleaning system applied to an aggregation of houses &c., wherein piping is permanently laid in or on each house having one or more inlets in a room or rooms of the house and one or more external outlets, service mains are laid in the streets, connected to the outlets and conveying the dust to a common exhauster or exhausters; disused gas mains may be employed for this purpnse.
Patent GB-998792-A (GB)
Title: Improvements in or relating to superconductive devices
Inventor: RICHARDS NORMAN DENNIS
IPC: G11C11/44
Filed: 1963-02-18
Abstract: 998,792. Superconductive circuits. MULLARD Ltd. Feb. 11, 1964 [Feb. 18, 1963], No. 6469/63. Heading H3B. [Also in Division H1] A superconductive storage element for analogue or digital signals comprises a tin gate conductor 8, Fig. 2, shunted by a lead loop conductor 9, the conduction state of the gate conductor being determined by current in a lead control conductor 11. The element is switched to a storage state by energizing the control conductor so that digit current through the gate conductor is diverted through the loop conductor, the control and digit currents being subsequently terminated with the result that a persistent circulating current is set up from the loop conductor through the gate conductor. The presence or absence of a circulating current is detected by re-energizing the control conductor 8 whereby the gate conductor again becomes resistive. Consequently a circulating current will develop a transient output voltage across the resistive gate conductor, the duration of the output voltage being determined by the L/R ratio of the loop. The loop inductance is increased by the use of a ground phase 6 which is mounted on a substrate (not shown) and has apertures 13, 14 associated with the loop 9. The various conductors are insulated from each other by silicon monoxide layers. The effective size of the apertures may be controlled by the use of a second apertured ground phase, Fig. 5 (not shown), which is adjusted so as to partially mask the apertures 13, 14 either before or during operation. The second ground phase may be welded into position. Alternatively a number of interchangeable ground phases may be provided. A matrix store may be formed by a co-ordinate array of elements which are built up on a common substrate by a deposition process.
Patent GB-442977-A (GB)
Title: A new or improved springing system for motor road vehicles
IPC: B60G11/18
Filed: 1935-03-01
Abstract: 442,977. Vehicle spring suspensions. ELVIDGE, H., 21A, Southampton Buildings, Chancery Lane, and SCOTT, W. C. H., 64, Westmount Road, Eltham Park, both in London. March 1, 1935, No. 6498. [Class 108 (ii)] In torsion suspension for vehicle wheels the wheel-carrying arm is adapted to rock a tube rotatably carried longitudinally of the vehicle and coaxial with the tube is a torsion bar, spaced parts of which are anchored to the tube and the vehicle undercarriage respectively the bar being torsionally stressed on displacement of the wheel. The wheel support or steering head 8 is carried by transverse links 10, 11, the upper forked link 10 being pivoted on a bracket 15a secured to the chassis longitudinal 1 while the lower link 11 is connected to and operates a torsion spring. The torsion spring comprises a longitudinal bar 3 held at one end by a disc 21 carried by the longitudinal 1 and free to rotate about its own axis at the other end under torsional stress. The free end is secured to a tube 6 which surrounds it and extends forwardlv over the bar 3. To this tube 6 is secured the lower link 11 of the suspension and the tube therefore transmits rotary stress from the link to the free end of the spring bar 3. As shown, the bar 3 is connected to the tube 6 through friction damping means whereby the minor oscillations are damped. A sleeve 5 in two parts has one part secured to the tube 6 and is surrounded by a further sleeve 24 between the flanges of which and of the sleeve 5 are mounted friction discs 27. The sleeves 24 at each side of the vehicle are interconnected by member 29 to take torque reactions. The disc 21 at the front is connected to a disc 22 which is also connected to a similar disc at the other side of the vehicle. The discs 21, 22 are secured together by bolts and serve also as a means of adjusting the relative height of the wheels and chassis. Fig. 6 shows an arrangement employing driven half axles 38 for the rear wheels. The upper link 42 is pivoted to the chassis member 1 while the tube 6 containing the torsion spring 3 is carried by brackets 39, 40 secured to the differential casing 36 and chassis member 1 respectively. Instead of the end of the torsion bar being splined to the tube 6 the connection may be by means of epicyclic gears, thereby enabling a shorter spring to be used. The invention is stated to be applicable to aircraft.
Patent GB-1019261-A (GB)
Title: Improvements in or relating to drums and like containers
Inventor: GILES ARTHUR JABEZ
IPC: F16K24/04
Filed: 1961-02-22
Abstract: 1,019,261. Stoppers. READS Ltd. May 4, 1962 [Feb. 22, 1961], No. 6539/61. Heading B8T. [Also in Division F2] A self-closing valve 14, for use in evacuating or supplying gas to a drum 10 and comprising a tubular housing 15 mounted in a bung 11, and a valve member 20 carried by a spindle 19 and urged against the inner end of a hollow sealing part 17, is provided with a sleeve 25 which is sealed to the inner surface of the bung 11 so as to encircle the inner end of the housing 15, and a porous screen 29 disposed within the sleeve between the valve and the free end of the sleeve. The porous screen 29 of cotton wool is enclosed between two gauze members 28, 30 and is held in place by an apertured cap 26. The outer end 23 of the spindle 19 projects through the part 17 to be operable for opening the valve, the end 23 being normally protected by a cap 24. The bung has a flange 13 with flats for engagement by a spanner.
Patent GB-217288-A (GB)
Title: Improvements in and relating to trucks or understructures for railway and like vehicles
IPC: B61F5/06
Filed: 1923-03-07
Abstract: 217,288. Toms, A., (Brill Co., J. G.). March 7, 1923. Addition to 212,109. Axle-trucks and bogies; springs, arrangement of, and mounting bodies on. - The arrangement described in the parent Specification is modified in that each hanger or the like for the suspension of the body-supporting spring member comprises a singlemember pivoted at each end in such a manner as to allow the spring member to swing freely only in a lateral or transverse direction horizontally without subjecting the connected parts to any twisting strain. The hangers 11, Fig. 1, which carry the ends of the bolster-supporting leaf spring 6 are each pivoted at their upper end to the side frame member 1 and at their lower end to a stirrup 7 which houses one end of the leaf spring 6. The hangers 11 may be of nor U-shape as shown in Figs. 3 and 6, respectively, or bent to the shape shown in Fig. 5. The bolster 3, Fig. 7, is supported by the leaf spring 6 through a helical spring 4 seated at its upper end in a recess in the bolster, the lower end of the spring being housed in a bracket 5 attached to the leaf spring 6, the bracket 5 being connected by a rigid link 34 pivoted at its end at 38 to a lug 37 on the bolster 3.
Patent GB-125236-A (GB)
Title: Improvements in or relating to Steering Gear.
Inventor: WEST WILLIAM HENRY
IPC: B63H25/10
Filed: 1918-04-19
Abstract: 125,236. West, W. H., and Inder, H. J. April 19, 1918. Steering-gear.-Relates to manually-operated steering-gear for boats &c. of the type comprising one or more projecting arms 5, 6 on the rudderhead 2 connected by links 11, 12 to one or more corresponding operating arms 3, 4 pivoted on a fixed deck pedestal 1. According to the invention, a screw-threaded steering-shaft 17 actuated by the steering-wheel 22 is mounted against longitudinal movement in a swivelling bearing 18 arranged on a fixed bracket 21 and co-operates with an internally threaded ring or tube 16 pivoted on the arm 3 by means of a depending pin. In a modification, the forward end of the steering-shaft 17 is connected to the arm 3 and longitudinal movement is imparted to the shaft by its engagement with the internally-threaded hub of the steering-wheel 22, which, in this case, is secured to the swivelling bearing 18.
Patent GB-139026-A (GB)
Title: Improvements in buckles and fastening devices
IPC: A44B11/10
Filed: 1919-03-18
Abstract: 139,026. France, A. G. March 18, 1919. Buckles. - A sliding- frame buckle comprises a frame a having a flat front bar c, a depressed middle bar f to which one end of the strap g is attached, and an end bar d which may be flat, twisted, or curved, the sides of the frame being provided for a portion only of their length with inturned flanges b for the sliding frame c to work in. The sliding frame c has an upturned rear end h for manipulation, and a hollow curved section or semi-cylindrical front edge j which is' caused to ride over the bar e by the tension of the strap. The sliding frame is prevented from being separated from the main frame by a protruding lower edge on the front bar j abutting against the middle bar f.
Patent GB-451052-A (GB)
Title: Improvements in and relating to electrically heated hotplates
IPC: H05B3/70
Filed: 1935-03-04
Abstract: 451,052. Electric hot-plates. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and IDE, G. H., c/o General Electric Co., Ltd., Landor Street, Birmingham. March 4, 1935, No. 6737. [Class 39 (iii)] A hot-plate comprising a rigid top-plate 1 with heated elements in a cavity on the underside, is provided with a sealing member 4 with a flange 2 entering a groove 8 on the underside of the plate to form a liquid-tight joint. The groove is machined or may be formed during casting and filled with refractory material and the sealing member is pressed tightly in the groove by means of a nut 6 on bolt 7. Specification 14469/14, [Class 39 (iii)], is referred to.
Patent GB-589203-A (GB)
Title: Bottle holders
IPC: A61J9/06
Filed: 1945-03-19
Abstract: 589,203. Holders for feeding bottles. ALLEN, P. E. March 19, 1945, No. 6859. [Class 125 (i)] A holder 1 for a feeding bottle 2, of the kind enclosing a mobile mass for retaining the holder in any set position, comprises an outer bag-like base 4 of washable fabric having a closure 6, and a readily removable inner bag filled with the mass of mobile heavy particles. The bottle is held by means of an elastic band 3 which may be either attached to or formed integral with the top of the holder.
Patent GB-937653-A (GB)
Title: Improvements in and relating to the regulation of hydraulic turbines
Inventor: KERENSKY GLEB
IPC: F03B15/08
Filed: 1959-02-27
Abstract: 937,653. Hydraulic turbines. ENGLISH ELECTRIC CO. Ltd. Feb. 16, 1960 [Feb. 27, 1959; May 11, 1959], Nos. 6865/59 and 16041/59. Class 110 (3). [Also in Group XXIX] A hydraulic turbine having conventional primary quantity control mechanism (i.e. a needle of an impulse turbine or shutter of a reaction turbine) and secondary regulating means (i.e. jet deflector of an impulse turbine or a relief valve of an impulse or reaction turbine), is provided with auxiliary regulating means, of substantially smaller maximum flow passage than the secondary regulating means, which controls the pressure at the turbine end of the penstock upon control movement of the turbine governor of an order of magnitude or rate below that at which the secondary regulating means becomes effective. In the embodiment shown in Figs. 2 and 3, the governor 1 controls the needle 2 through a linkage 15 and a relief valve 23 through a cam 10 and dash-pot 16. The auxiliary regulating means, enclosed in chain lines in Fig. 2 and shown in Fig. 3, comprises a relief valve 4 connected to a piston member 17 which houses a control valve 27 connected by a rod 37 to a dash-pot cylinder 5. When the governor 1 causes the servomotor 11 to move in the closing direction, a piston 29 of the dash-pot and its cylinder move to the right causing movement of the valve 27 to allow pressurised fluid to pass to the left-hand side of the piston 17 and open the right-hand side to drain whereby the valve 4 is opened. The valve 4 closes under the control of the dash-pot provided with an adjustable timing device 28 for the escape of fluid from one side of the piston 29 to the other. The valve 4 may be partly opened or wholly opened in its neutral position.
Patent GB-330249-A (GB)
Title: Improvements in or relating to disinfecting or sterilising devices for use in connection with bottle and like washing apparatus
IPC: A47L15/00
Filed: 1929-03-02
Abstract: 330,249. Haimes, R. March 2, 1929. Mixing of fluids in flow.-In apparatus for washing bottles, glasses, or like articles, wherein the washing is effected by water under pressure isuing from nozzles or jets, disinfecting or sterilized fluid is supplied to the conduit leading from the control valve of the washing apparatus to the nozzles, under the control of means associated with the conduit and adapted to operate automatically so that a small quantity of disinfecting or sterilizing fluid is introduced into the washing liquid at the begininng of each washing operation and is thereafter washed away by the subsequent flow of water during the remainder of the operation. In the construction shown in Figs. 1 and 2, a chamber 1 containing disinfecting fluid is provided with a valve chamber 3 and a pipe 14 adapted to be connected to the conduit leading to the nozzles of the washing apparatus. The chamber '3 is formed with seats for valves 6, 7, connected by a rod 8 which is normally pressed downwardly by a spring 20. Normally the pipe 14 contains fluid which has flowed from the chamber 3. When the control valve of the apparatus is opened disinfecting fluid in the pipe 14 is at first drawn out to mingle with the water. Subsequently the pressure of the washing liquid forces the rod 8 upwardly holding the valve 7 against its seating 5 until the washing operation is finished and the control valve is closed, whereupon the rod 8 is pressed downwardly by the spring 20 permitting the release of a further small quantity of fluid from the container 1. In the construction shown in Fig. 3, in which a glass 18 to be washed is placed upon a depressible platform 19 connected to a control valve 20, the platform is carried by a tube 23 which is slotted vertically to receive the end of a valve chamber 27 adapted to communicate with the supply of disinfecting liquid. A cylinder 82 fixed in the tube 23 is arranged to co-operate with a plunger 31 carried by the tube 23, the plunger being formed with a passage 33 adapted to be closed by a ball valve 34. Normally a small quantity of disinfecting fluid is contained below the plunger. When the platform 19 is depressed this fluid is forced upwardly past the ball valve 34 and mingles with the flow of washing water to the nozzles 22. When the washing operation is completed the. platform 19 rises taking with it the plunger 31 so that suction below the plunger causes the ball valve 37 to move from its seating allowing disinfecting fluid to flow into the space beneath the plunger. The invention may be used in conjunction with the apparatus described in Specification 309,878. [Class 138 (i), Washing and cleaning buildings &c.].
Patent GB-609123-A (GB)
Title: Improvements in and relating to a latch
IPC: E05C3/30
Filed: 1946-03-06
Abstract: 609,123. Door latches; automatic catches. TRIGGS, W. W. (Yale -& Towne Manufacturing Co.). March 6, 1946, No. 6969. [Class 44] In a swinging latch mechanism for doors comprising a latch-bolt, inside and outside handles, and a subsidiary latch member movable to a locking position, the inside handle being adapted to retract the latch-bolt and to move the subsidiary latch member to a release position, while the outside handle is adapted only to retract the latch-bolt, the handles are mounted on pivot pins parallel to the door faces. The latch-bolt and subsidiary latch member are also pivotally mounted on axes parallel to or coincident with the handle axes. The outside and inside handles 13 and 15, Fig. 3, are mounted to swing about pivot pins 12 and 14 respectively between the upper and lower flanges of mounting brackets 11 and 10. The latch-bolt 16, swinging about the pin 14 between the intermediate flange 17 of the bracket 10, Fig. 5, and lower flange 15b of the inside handle 15, is urged to the closed position about the strike 25 by a spring 21 coiled about the pin 14, one limb 23 of the spring bearing against the back plate 24 of the inside bracket 10, and the other against the bottom surface of a slot 22 cut in the latch-bolt 16. The inner handle 15 is maintained in the position shown in Fig. 3 by the shoulder 26 on the latch-bolt bearing against a surface 27 on the handle 15, the handle itself bearing against a lug struck down from the upper flange 19. The latchbolt 16 is connected to the outside handle 13 by a clevis 31 pivoting at its inner end about the pin 36 in the latch-bolt. The clevis is adjusted in length by the threaded portions 34 and 35 so that when the slotted part of the clevis is engaged with the pin 32 on assembly, the outer handle is in the position shown in Fig. 3 with the latch-bolt protracted. The subsidiary latch member 20, also mounted on the pin 14 but lying between the upper flange 15a of the handle 15 and the intermediate flange 17 of the inside bracket 10, may be set to closed position, when its nose is directly over that of the latch-bolt 16, or to release position as in Fig. 3, by operation of the fmger-piece 45. It is also released on operating the inside handle 15 to open the door by contact of the inner surface of the handle with the finger-piece 45. It is automatically released on closing the door, if inadvertently left in the locking position, by contact with the strike 25. The latch-bolt 16 meanwhile has been retracted by contact with the strike 25 and restored on passing it by the spring 21, as shown in Fig. 3. The dog 20 is maintained in the locked or released position by the engagement with depressions 44 or 43 in the intermediate flange 17 of a yielding ball catch 40 mounted in a socket 42 in the dog 20.
Patent GB-633139-A (GB)
Title: Improvements in or relating to a low water alarm for steam boilers
IPC: F22B37/42
Filed: 1947-03-13
Abstract: 633.139. Indicating liquid-levels. EL DIN EL SHAFIE, S. March 13, 1947, No. 7012. [Class 123(i)] A low level water alarm for a steam boiler comprises a chamber E which has lower and upper passages e<SP>1</SP>, f<SP>1</SP> communicating respectively with the water and steam spaces of the boiler through the usual gauge C and houses a float e2 connected by levers L<SP>2</SP>, L<SP>1</SP> to a valve V which normally closes the inlet port f<SP>2</SP> of a steam whistle H, fitted to the cover F of the chamber, but opens same when the level in the chamber falls below a predetermined minimum. As shown, both levers are hinged to the interior of the float chamber. A modification, in which the steam and water inlets f<SP>1</SP>, e<SP>1</SP> communicate directly with the top and bottom fittings A, B of the gauge C, and three hinged levers are provided between the float e<SP>2</SP> and valve V, is also described.