baber/WOPTO huggingface dataset:
Patent GB-446500-A (GB)
Title: Manufacture of dyestuffs of the anthraquinone-oxazole series, capable of being chromed
IPC: C09B5/30
Filed: 1934-09-28
Abstract: Anthraquinone dyes which may be after-chromed are prepared by causing sulphuric acid containing sulphur trioxide to act upon a 4 - aminoanthraquinone - 1.2(N) - phenyloxazole, if desired in presence of boric acid.  The products are probably anthraquinone-oxazolesulphonic acids probably containing one or more hydroxy groups.  In examples: 1.2(N)-phenyl - 4 - aminoanthraquinone - oxazole is treated with fuming sulphuric acid at about 90--100 DEG C. with or without boric acid present; the 4-aminoanthraquinone-1.2-p-tolyloxazole and the oxazole from 1-oxy-2.4-diaminoanthraquinone and m-methoxybenzoyl chloride are similarly treated; the oxazoles from 1-oxy-2.4-diaminoanthraquinone and o- or m-chlorbenzoyl chloride are similarly treated at about 130--150 DEG  C.  The products when after-chromed on the fibre yield grey shades.
Patent GB-642894-A (GB)
Title: Improvements in or relating to machines for moulding and stripping blocks formed from agglomerates
IPC: B28B1/087
Filed: 1946-09-18
Abstract: 642,894. Vibratory moulding- machines. LARUELLE, J. Sept. 18, 1946, No. 27977. [Class 87 (ii)] A machine for moulding and stripping blocks formed from agglomerate comprises a moulding table 1 from which depend a vibrating device and an electric motor 4, said table having holes through which stripping uprights 14 can slide, said uprights being movable by a cam 17 operated by a lever 21. The table 1 rests on springs 3 supported by standards 2. The motor 4, bolted to the underside of the table, drives a shaft 6 through two belts 10, one on either side of the shaft. Masses 7 are eccentrically mounted on the shaft 6, the rotation of which causes the spring- supported assembly to vibrate. A casing 5, enclosing the masses 7, can be wholly or partly filled with liquid to damp the vibrations. The uprights 14 make contact with a loose bottom 24 (which may be suitably profiled on its upper face) and are joined at their lower ends by a plate 16 which rests on the cam 17. The cam 17 is fixed to a shaft 18 which also carries a pinion 19, and the pinion 19 engages a toothed sector 20 which may be rotated about the pin 23 by the lever 21, the raising of which causes the loose bottom 24 to rise and eject the moulded article. The mould cover 25, which may be suitably profiled on its underside, is clamped in place by jaws 26 and cams 27.
Patent GB-483473-A (GB)
Title: Thermostat for controlling automatically the jacket cooling water of internal combustion engines and other machines
IPC: F01P7/14
Filed: 1936-10-16
Abstract: 483,473. Cooling cylinders. PARSONS, H. Oct. 16, 1936, No. 28107. [Class 7 (ii)] [Also in Group XXIX] An open circuit cooling system in which water from a bulk supply is pumped through the cooling jackets and then discharged to waste comprises a thermostatic device having a liquid space with connections 1, 2, 3 to the jackets, the discharge pipe, and a byepass back to the pump suction respectively, and a heat-responsive element 4 in the said space which controls only the byepass connection 3, means also being provided to prevent the entry of air or gas from the discharge connection to the byepass 3 when the element is cold, as when starting up the engine. As shown a sealed metallic bellows 4 fixed at its upper end operates a valve 8 which closes the byepass as the temperature increases. The valve 8 is carried by a spindle 6 guided in a bridge 7. A thermometer connection 5 is provided and the byepass has a hand-operated cock 10. As shown the means for preventing air entering the byepass comprises a second valve 9 on the spindle 6. Instead of or in addition to the valve 9, a non-return valve may be provided between the outlet 2 and the byepass 3 and the valve 8 may be formed by the lower end of the bellows.
Patent GB-929236-A (GB)
Title: Improvements in or relating to method of, and apparatus for determining the end shape of a mandrel on which filament wound pressure vessels are produced
Inventor: YOUNG RICHARD ELLIOTT
IPC: B21F17/00
Filed: 1959-08-17
Abstract: 929,236. Forming cores for covering by winding. HERCULES POWDER CO. Aug. 17, 1959, No. 28110/59. Class 109. The invention relates to a method and apparatus for determining a suitable end shape for a pressure vessel, for example a cylindrical pressure vessel, and for reproducing said end shape in the form of a mandrel that can act as part of a core when making said pressure vessel by the known processes of winding filamentary material on cores. As shown, the apparatus comprises a ring 1 supported on legs 2 and a ring 6 adjustable axially relative to the ring 1, the rings 1 and 6 being mounted above a plate 10 and below a polar fitting 17, the fitting 17 being axially adjustable relative to the ring 1. Threads are laced through grooves 20, 21 over the fitting 17, to further grooves 20, 21 in the rings 1, 6. When the network of threads is complete, the device is inverted, and a spindle 12 supporting the fitting 17 and the plate 10 are removed. A balloon is then inserted through the ring 1 and inflated to load the network of threads. It is stated that this brings the surface contour of the netting to the precise shape required for constant filament stress and maximum structural efficiency in a pressure vessel. When this contour has been achieved, shadowgraphs of the profile are taken for several different diameters and the resulting curves averaged to give the axial section of a mandrel on which filaments can be wound to form a pressure vessel. Specification 803,270 is referred to.
Patent GB-632883-A (GB)
Title: Improvements relating to sound reproducing apparatus
IPC: G11B17/02
Filed: 1947-10-21
Abstract: 632,883. Driving sound-reproducing machines. McDONALD, D. M., and BIRMINGHAM SOUND REPRODUCERS, Ltd. Oct. 21, 1947, No. 28187. [Class 40 (ii)] The mechanism for starting and stopping a gramophone comprises a lever 18, pivoted at 14, and moved in one or other direction by a pick-up arm 6 so as to start or stop an electric driving- motor, or alternatively operate braking mechanism of a spring motor. As applied to an electric motor a plate 13 carrying contact 12 is mounted beneath a second plate 17, the plates 13 and 17 also being pivoted about 14 and being connected to the lever 18 by a connection 19, 20 which allows a small amount of relative movement between the plates and the lever. A pawl 26 is pivotally mounted on the lever 18 about 27 and is biassed by a spring 29. When the pick-up 6 is moved to its outermost position it causes the lever 18 and plate 13 to move the contact 12 between contacts 11 so as to connect a driving-motor 39 to the supply. Movement of the pick-up towards the end of the record causes the freedom allowed by the connection 19, 20 to be taken up between the lever 18 and the plates 13, 17, so that at the end of the traverse the whole lever assembly is moved about the pivot 14 until the edge of the pawl 26 is engaged by a projection 33 which is mounted on the turntable boss and moves the assembly anticlockwise about the pivot 14 to disengage contacts 11 and 12. In the event of the tip 32 of the pawl engaging the projection 33 the pawl pivots about 27 against the bias of the spring 29, the motor being switched off on the next revolution of the turn-table.
Patent GB-327191-A (GB)
Title: Improvements in or relating to toothed change speed gears
Filed: 1928-10-03
Abstract: 327,191. Carling, W. T. Oct. 3, 1928. Facilitating changing speed; clutches, claw.- Relates to variable-speed toothed gearing provided with locking-devices for preventing inopportune engagement of positive clutches, as described in Specification 294,301, or of sliding toothed gears, as described in Specification 807,631. The preventive locking takes place in two stages, and between these stages an automatic fuel-reducing device, for example such as described in Specifications 315,967 and 316,790, may become operative. The invention is useful in changing down. Figs. 1 and 2 show the invention applied to the clutch described with reference to Fig. 1 of Specification 294,301. One of the preventive locking fingers is shown at 10 which passes through an arcuate slot 11 in a disc 6<a> attached to the slidable male member 6 of the clutch. When a changedown is to be made, and member 6 is moved towards driving female clutch member 4, a shoulder 14 on finger 10 engages the face of disc 6<a> and stops the movement. Accelerator pedal 20, Fig. 3, is depressed, which moves shoulder 14 clear of disc 6<a>. According to the invention, the other shoulder 14<a> is in a different plane and now becomes operative to stop the sliding movement a second time. The sliding movement to engage clutch 6, 4 is completed after the fuelreducing device has reduced the rotary speed of finger 10. In Fig. 3 is shown a switch for operating a fuel-reducer to facilitate the disengagement of the gear clutch operative at the time. The contacts 22a, 24<a> are on a spring 22 adjacent the accelerator pedal 20 and on a spring lever 24 which swings up out of the way when gear-change lever 28 is in the neutral position shown. When a change is to be made, the lever 24 is in the lower position, shown dotted, and the operator moves his foot from pedal 20 sideways to engage the contacts and reduce the fuel. An additional switch is described to replace the cam device 29 to throw the switch out when in neutral. Specification 282,121 also is referred to.
Patent GB-279852-A (GB)
Title: Improvements in and relating to automatic pistols
IPC: F41A3/64
Filed: 1927-10-25
Abstract: 279,852. Bourth, V. Oct. 29, 1926, [Convention date]. Breech actions, sliding breechblock.-The breech chamber 1, Fig. 3, of an automatic piston is closed at the back by a plug 20 and is internally cylindrical and formed with two longitudinal grooves 23, one at each side, to guide the breech-block 3, which is impelled forwards by a coiled spring 5 having in cross section the shape shown in Fig. 8, the two lateral ears 44 of this spring being adapted to fit into the grooves 23. When a shot is fired, the breech-block is thrust back and a pivoted tooth 30, Fig. 7, depending from it strikes one arm 24 of a bellcrank lever, the other arm 25 of which ejects the spent cartridge, after which the breech-block is returned forwards by its spring 5. A cover 28 attached to the breech-block opens and shuts the ejection opening when the breech-block moves backwards and forwards. When the magazine is empty, a book 37 following the cartridges in the magazine lifts a spring catch 33 into a notch 32 in the breech-block and stops it in the open position. The magazine can then be reloaded, after which the catch 33 is disengaged by means of a cam 41 worked by a knob at the side of the breech. A firing pin 7 is arranged in the breech-block and is adapted to be struck by a hammer 4, which is guided by lateral lugs sliding in the ears 44 of the spring 5, and is connected to the breech-block by a coiled spring 6. The hook 19 of the sear 17 engages a lip in the back of the hammer, and a hook 14 at the end of a rod 15 attached to the sear engages a spring tooth 12 on the trigger 8, which is pivoted at 9 and controlled by a spring 10. If the trigger is kept pulled, the hammer 4 is made by the spring 6 to follow the forward stroke of the breech-block with a certain lag, and shots are fired automatically in succession. When the trigger is released, the hammer is retained cocked while the breech closes. The back of the stock is closed by a plate 46.
Patent GB-1508945-A (GB)
Title: Powder compositions
IPC: H01G4/12
Filed: 1976-07-08
Abstract: 1508945 Dielectric compositions E I DU PONT DE NEMOURS & CO 8 July 1976 [9 July 1975] 28513/76 Heading C1J A dielectric powder sinterable in air at 900-1050C to produce bodies having a high dielectric constant, the said powder having been calcined in air at not more than 900C, has the composition wherein x=0-0À10, a=0À35-0À5, b=0À5-0À65 and a + b = 1, substantially all the powder particles being 20 microns or less in largest dimension. The powder may be prepared from the metal oxides or their precursors (e.g. carbonates, hydroxides or nitrates). The powder when sintered may be formed into a disk capacitor.
Patent GB-460101-A (GB)
Title: Improvements in or relating to corsets
IPC: A41C1/00
Filed: 1935-10-16
Abstract: 460,101. Corsets. ABBATT, D. Oct. 16, 1935, No. 28544. [Class 141] Corsets consist of inextensible back and side panels a and b respectively, and a front panel e, one edge of which is attached to the otherwise free edge f of one side panel as far down as the line g at which the trunk bends, beyond which it extends freely. The other edge of the panel is detachably secured to the opposite side panel for a like distance, below which the adjacent edges of the two side panels are connected by a band or bands m made wholly or partially of elastic webbing permanently attached at one edge and detachably secured to the other edge, or detachably secured to both edges independently of the free portion of the centre panel. Stocking suspenders l are attached to the free portion of the centre panels. When the band or bands m are detachable at both ends, a sufficient number of fastening devices p is provided on the side panels to allow of the position of the band being varied.
Patent GB-735289-A (GB)
Title: Improvements in or relating to shuttering for use in moulding walls from concrete
Inventor: BRYDON NOEL EBENEZER MORRIS
IPC: E04G9/06
Filed: 1951-12-06
Abstract: 735,289. Shuttering for moulding concrete walls. BRYDON CONSTRUCTION CO., Ltd. Dec. 6, 1951, No. 28610/51. Addition to 670,689. Class 20 (2). The flange at the upper edge of the shuttering section of the parent Specification is formed by one flange 2A of a channel the other flange 2B of which engages the shuttering supports and may be extended below the web 20 or the channel may be replaced by an I-section, and a series of clips 3 on the lower edge of the section are adapted to engage the flange 2A of an adjacent section.
Patent GB-357784-A (GB)
Title: Improvements relating to horse hair cloths and similar fabrics
IPC: D03D41/00
Filed: 1930-09-26
Abstract: <PICT:0357784/IV/1> <PICT:0357784/IV/2> Horsehair and like fabrics are treated over a part of the surface only with an adhesive solution to prevent the hairs working loose. The fabric 1 passes over rollers 3, 4, and under cups 16, 20, fed with adhesive solution from a tank 7 which is supplied with compressed air by a pipe 12.  The fabric is in tensional engagement with the open bases of the cups.  The cups 20 attached to the frame 5 serve to treat the selvedges 35 of the fabric; the other cups 16 are mounted on a carriage 9 which is reciprocated on rails 6 across the fabric so as to produce sinuous lines 35a. According to the first Provisional Specification the fabric may be coated by passage between rollers, one of which is provided with a raised pattern and is partly immersed in a tank of the adhesive solution.
Patent GB-756372-A (GB)
Title: Back rest for a seat
Inventor: DUFTON RONALD
IPC: A47C7/44
Filed: 1953-10-19
Abstract: 756,372. Back-rests. DARE INGLIS PRODUCTS, Ltd. Sept. 27, 1954 [Oct. 19, 1953], No. 28849/53. Class 52(2). A tiltable back rest 1 is carried by an upright 14 mounted on the seat frame, the joint at the upper end having limited freedom of movement between rubber buffers 13, or compression springs, on the connecting bolt 6. Preferably two sets of buffers are provided at the ends of a horizontal bar 12 rigidly secured at its centre to the top of the upright 14.
Patent GB-1524402-A (GB)
Title: Buoyant wharf for cargo handling
IPC: B63B35/44
Filed: 1976-07-12
Abstract: 1524402 Floating jetties NIPPON KOKAN KK and CRYSTAL LINE CO Ltd 12 July 1976 [29 July 1975] 28858/76 Heading B7A To provide or improve coastal cargo handling facilities, a floating jetty 1, which can be towed to a location offshore a coast 8 and moored there, has a deck 1<SP>1</SP>, providing cargo accommodating spaces 6, a plurality of rail mounted jib cranes for moving cargo between the spaces 6 and a ship 3 moored alongside or vice versa and one or more rail mounted gantry cranes 4 which move cargo between the spaces 6 and a landing craft 2 moored in a recess 7 in the jetty 1. The jetty 1 may have one or more recesses 7 for landing craft which shuttle cargo between the jetty 1 and points along the coast 8. Instead of the hull being a unitary structure it may comprise a plurality of assembled hull units which may be towed separately.
Patent GB-245900-A (GB)
Title: Improvements in swath turners, hay collectors, side delivery rakes, or the like
IPC: A01D78/14
Filed: 1924-12-03
Abstract: 245,900. Bamford, J., and Bamford, C. J. Dec. 3, 1924. Haymaking.-A swath-turner, hay collector or side-delivery rake of the kind in which shafts, each having a group of tines rotating about its end, are connected at their rearward ends to a source of power and are attached at their forward ends to a transverse member supported from the frame of the machine, has the transverse .member made in sections, the central or main section 2 being capable of being raised or lowered and the outer or end sections 4, which carry the rotating heads, being connected to the main section by parallel link members to permit them to be adjusted independently longitudinally or vertically relatively to the machine. The outer sections may be retained in their terminal positions by gravity or clips or bolts may be employed to maintain them in position. In a modification the outer sections are mounted on cranks moving in a vertical plane; in further modifications the outer sections are connected to the main section by parallel link members or cranks moving in a horizontal plane. Specification 244,545 is referred to.
Patent GB-536063-A (GB)
Title: Improvements in or relating to strain gauges
IPC: G01L1/10
Filed: 1939-10-30
Abstract: 536,063. Strain gauges. KAPELLA, Ltd., and COOKE, E. A. Oct. 30, 1939, No. 28969. [Class 106(ii)] For measuring strain in machine frames an auxiliary extensometer, similar to the main extensometer, is provided which is exposed solely to the same temperature conditions as the latter so that the strain is given by the difference between the readings of the instruments. Two gauge heads A, B are secured to a column of a mill so as to be vertically spaced apart. Each gauge head comprises a pair of pole pieces carrying two electic solenoids A<SP>2</SP> arranged one above the other with an air-gap between them. The coils of each pair are connected in series and supplied with A.C. from a transformer D, the interconnected ends of the solenoids being connected to one side of an ammeter E, the other side of which is connected to a rheostat E<SP>1</SP> across the supply terminals. An armature F resiliently secured by a spring F<SP>2</SP> to the gauge head extends into the air-gap. A main extensometer wire G extends along the axis of the spring F<SP>2</SP> and through a hole in the armature where it is secured to a ball resting in a V-notch in the armature. The lower end is similarly secured to a ball resting in a V-notch within a plug having a screw thread for engaging a threaded socket H<SP>1</SP> fixed to the column. The plug has a milled head and a lock-nut. The lower gauge head B has a similar arrangement from which extends upwardly a similar extensometer wire to a similar plug in a socket carried by an arm extending upwards from the gauge head, this arm being made of a material known under the Registered Trade Mark "Invar." The extensometers are arranged close together and are enclosed in the same casing. The main extensometer is subjected to the strain on the frame and to variations of temperature while the auxiliary one is subjected only to temperature variations. The difference in the readings of the ammeters will give the time strain. Instead of employing two meters a differential meter may be used.
Patent GB-154867-A (GB)
Title: Improvements in non-freezing fuel
IPC: C10L1/02
Filed: 1919-05-07
Abstract: A motor spirit with a freezingpoint below -60 DEG  F. consists of 12 parts by volume of benzol, 30 parts of gasolene, and 40 parts of absolute alcohol.  Specification 153,925 is referred to.
Patent GB-636976-A (GB)
Title: Improvements in and relating to the manufacture of ferro-alloys
IPC: C21B11/02
Filed: 1947-10-30
Abstract: A process of producing a low carbon ferro-chrome or ferro-manganese comprises smelting an ore of chromium or manganese with carbonaceous material in a shaft furnace into which is injected an oxygen-rich fluid, transferring the smelted alloy to a separate refining vessel and blowing into it an oxygen-rich fluid to reduce its carbon content.  The fluid injected into the furnace may be preheated and may contain at least 50 per cent of oxygen.  The fluid blown into the metal in the refining vessel may contain between 85 and 98 per cent of oxygen.  The height of the shaft furnace may be less than normal to an extent determined by the oxygen content of the injected fluid and its degree of pre-heat.  In the refining vessel, which may be an electric furnace, the reduction of carbon content may be accompanied by a simultaneous reduction of chromium content, where a chromium ore is reduced, to such an extent as to result in a stainless steel. Stainless steel may also be produced by addition of low carbon steel base to the low carbon ferro-chrome in the refining vessel. Such addition may be made in a second refining vessel and the resulting alloy may be further blown to produce stainless stell. The Specification refers to the addition of other metals to the stainless steel, e.g. nickel, titanium, niobium and molybdenum.
Patent GB-1087620-A (GB)
Title: Improvements in or relating to roofing felt
Inventor: EDWARDS RAYMOND MONTAGUE
IPC: E04D5/02
Filed: 1965-07-08
Abstract: A rag fibre base roofing felt having a bitumen coating on both surfaces thereof is treated to improve its dimensional stability by applying water to one or both bitumen-coated surfaces prior to realing.  The water may be applied by spraying, the amount of water sprayed on being at least 4 times as great as the amount that the base fibres are capable of absorbing; the felt may be advanced through a zone containing water-saturated air; the felt may be passed through a tank of water; or the water may be applied by transfer rolls or brushes.
Patent GB-445698-A (GB)
Title: Improvements in or relating to means for distributing the air supplied to furnace grates
IPC: F23L1/02
Filed: 1934-10-11
Abstract: 445,698. Furnace grates. BENNIS, A. W., Bennis Works, Highfield Road, Little Hulton, near Bolton. Oct. 11, 1934, No. 29080. [Class 51 (i)] Inclined air deflectors A1 are disposed at intervals along the length of a trough or troughs B under a furnace grate, so as to leave spaces above and below their edges, and they are set at different levels and can be adjusted to varying inclinations so as to obtain desired distribution of air along the length of the grate. As shown, the grate is of the kind in which the grate bars are carried by the troughs, but other arrangements are included, e.g. the troughs may be disposed between the upper and lower runs of a chain grate. Further, there may be deflectors between the troughs. Reference has been directed by the Comptroller to Specification 8180/08, [Class 51].
Patent GB-814330-A (GB)
Title: Improvements in or relating to voltage regulating devices
IPC: G05F3/22
Filed: 1956-09-24
Abstract: 814,330. Automatic voltage control systems. KIENZLE APPARATE G.m.b.H. Sept. 24, 1956 [Nov. 7, 1955], No. 29112/56. Class.38 (4). A D.C. voltage regulator has the variable input, e.g. from a rectifier 3, applied to the collector of a transistor 7, the load 9 connected to the emitter and a biasing battery 5 serving as a reference voltage source connected to the base. Resistor 6 provides, a permanent charging path for the battery 5, to compensate for the base current it supplies. In this way the reference voltage is held constant and, due to the transistor stabilizing action, the output voltage across load 9 is similarly fixed. The constant collector current characteristic of the transistor provides stabilization against variation in the supply voltage and the low output impedance of the circuit maintains constant voltage with a varying load.