baber/WOPTO huggingface dataset:
Patent GB-651917-A (GB)
Title: Process for the manufacture of cupriferous diazo-dyestuffs
IPC: C09B45/28
Filed: 1948-06-17
Abstract: Cupriferous dioazo dyestuffs are manufactured by treating a dioazo dyestuff of the general formula <FORM:0651917/IV (c)/1> (wherein R represents a diphenyl residue which is bound in the 4- and 41-positions to the azo linkages and contains in each of the 3- and 31-positions an alkoxy group) with an agent yielding copper (especially a cupritetrammine compound, e.g. one obtainable from ammonia, alkylamines, morpholine, pyridine or piperidine) until the alkoxy groups are completely split up (e.g. for several hours at 80-90 DEG  C., advantageously in an aqueous medium, if desired in the presence of bases such as ammonia or organic bases).  The starting materials are obtainable by coupling a tetrazotized 4 : 41-diamino-3 : 31-dialkoxydiphenyl (preferably one in which the alkoxy groups contain only a few carbon atoms, e.g. the diethoxy or especially the dimethoxy compound) with 1 : 8-dihydroxynaphthalene-3 : 6-disulphonic acid and with a 2 - acyl - (e.g. acetyl -, chloracetyl -, benzoyl -, p - chlorobenzoyl - or 21 : 41 - dichlorobenzoyl -) amino - 5 - naphthol - 7 - sulphonic acid, in either order, but preferably first with the former compound in a neutral to weakly alkaline medium and then with the latter compound in a somewhat more strongly alkaline medium, if desired with the addition of a small quantity of pyridine. The dioazo dyestuff may be isolated from the coupling mixture before coppering, or, especially when the second coupling has been conducted in the presence of pyridine, it may be coppered in the coupling mixture, if desired after neutralizing or diminishing excess alkali therein.  The products are suitable for dyeing or printing animal fibres (e.g. wool or leather) and especially cellulosic materials (e.g. linen, cotton, and artificial silk and staple fibres of regenerated cellulose).  Examples describe the coppering of dyestuffs derived from certain of the components specified above, and the dyeing of cotton greenish dark blue with one of the products from a bath containing sodium sulphate.  Specifications 352,956, 597,130, 615,210, 628,028 and 644,883 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the coppering of disazo dyestuffs in which the residue on the left-hand side of the general formula above is replaced by the residue of another 1 : 8-dihydroxynaphthalenesulphonic acid coupling in the 2-position, e.g. the 4-sulphonic acid or the 4 : 6-disulphonic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-561356-A (GB)
Title: Treatment of woven glass fabric
IPC: C04B41/53
Filed: 1942-11-20
Abstract: 561,356. Coated fabrics ; compound sheet materials. RUBBAGLAS, Ltd., and BETTERIDGE, G. W. Nov. 20, 1942, No. 16403. [Class 140] Woven glass fabric is roughened by etching with hydrofluoric acid or by abrasion, e.g. with a sand blast before coating with rubber. A fabric from the loom is treated successively with alcohol to remove the weaving lubricant, with dilute hydrofluoric acid, with a neutralising substance, and with water. After drying on warm rollers it is coated with rubber in a threeroll calender. The coated cloth may then be frictioned with rubber on both sides, and a further calendered coating applied before vulcanising. Two coated fabrics may be united by their rubber coatings. The product is suitable for electric insulation, waterproof clothing, belting, tyres, or dampcourses. Specification 519,567 is referred to.
Patent GB-380071-A (GB)
Title: Improvements in bed settees and bed chairs
IPC: A47C17/20
Filed: 1931-06-05
Abstract: 380,071. Bed settees. SINGER, R. D., Relion Upholstery Works, Billet Road, Walthamstow, London. June 5, 1931, Nos. 16439/31 and 1142/32. [Class 52 (ii).] In a bed settee the rear section 6a of the mattress frame 6 is supported from the main fixed structure 4 by a pivoted connection 9 located at an appreciable distance from the rear of the section. The seat member 5 with a leg 16 also supports the mattress frame, when in the extended position, by links 7, and the seat member 5 is hinged at 17 to the main fixed structure, the hinge also providing support at 18 for the intermediate strut member 7a. The back rest comprising side-pieces 10 and upholstery 12, is hinged at 13 to the main structure and is connected by a chain 15 to the extremity of the rear section 6a. When the article is in the settee position the leg 16 and section 6a are accommodated behind the back rest and when in the extended position for use as a bed, the rear section 6a, projects by the portion 8 beyond the back of the main structure, the back rest having rotated through 180‹ to the position shown in Fig. 1. A spring 22 assists the extension operation.
Patent GB-1201832-A (GB)
Title: Bending fatigue machine
Inventor: STANLEY PETER
IPC: G01N3/34
Filed: 1968-04-05
Abstract: 1,201,832. Bending fatigue machine. ROLLS-ROYCE Ltd. April 5, 1968, No.16487/68. Heading G1S. Clamp 1 and adjustable-clamp 2 holding a test piece 3 are mounted on arms 4 pivoted each at one end to the frame 5 and at their other ends to links 7, 8 and bending moment gauges 11. Threaded links 8' connect the links 8 to bars 9 which are movably adjustable over quadrants 10 provided with toothed wheels 12 fixed thereto, and the wheels 12 are engaged by toothed racks 13 on a slide 14 which is lifted and lowered to bend the test piece 3 by a roller 17 engaging a sine bar 18 adjustable on a slider 20 moved horizontally by means of a roller 24 pressed against a driven cam 25. Each of the quadrants 10 is connected to a cable 31 looped around pulleys 32, 33 and supporting a counterweight 34 so that as the sine bar moves to right and left the weight 34 is used and lowered and the links 7, 8 moved to bend the test piece. The cam 25 may be as shaped or may be clutched and braked to give periods of constant strain to the piece 3.
Patent GB-1437144-A (GB)
Title: Aluminium alloys for internal combustion engines
IPC: C30B21/02
Filed: 1974-04-16
Abstract: 1437144 Casting processes COMALCO ALUMINIUM (BELL BAY) Ltd 16 April 1974 [16 April 1973] 16613/74 Heading B3F [Also in Division C7] A melt of an alloy comprising the balance, apart from impurities, being Al, is solidified with a growth rate of the solid phase of 10-5000 Á/sec. and a temperature gradient at the liquid/solid interface of 100-500‹ C./cm. to produce a solid alloy with (a) a microstructure substantially free from primary aluminium and primary silicon phases, and (b) a high volume fraction of dispersed eutectic Si, the silicon being present as fibrous or spheroidized eutectic particles less than 10 Á in diameter.
Patent GB-400881-A (GB)
Title: Improvements in producer gas-fired steam boiler units
IPC: C10J3/00
Filed: 1933-06-10
Abstract: 400,881. Gas-producer plant. BABCOCK & WILCOX, Ltd., Farringdon Street, London. June 10, 1933, No. 16656. Convention date, June 10, 1932. [Class 55 (i).] In a gas-fired steam boiler plant comprising a producer 1, a steam boiler 8 and combustion chamber 7, an air heater 12, and a humidifying unit 19, the temperature of the air supplied to the humidifier is controlled by a damper 17a which regulates the mixture of warm air from the heater 12 with cold air from an inlet 20. The air passes through water sprays 26, and excess moisture is removed by a separator 21 disposed adjacent to a centrifugal fan 31. Movement of the damper 17a is determined by a thermostat 27 disposed at the delivery side of the separator. Air flowing through the heater 12 is preheated by waste gases from the furnace and part of the hot air may be supplied to the furnace through a conduit 16. In a modification, the water for the sprays 26 is preheated in a coil arranged in the stack pipe 13, the temperature of the water being controlled by a valve actuated by the thermostat 27.
Patent GB-288458-A (GB)
Title: Improvements in tyres for the land wheels of aerial machines
IPC: B60C19/00
Filed: 1927-06-23
Abstract: 288,458. Wieser, H. June 23, 1927. Tread surfaces; jackets and covers.-Pneumatic or other elastic tyres for the landing wheels of aircraft are formed with a tread surface which is at least twice as wide as the rim f and comprises a median surface c and two off-soet side, surfaces a, b. All the tread surfaces are of plain formation.
Patent GB-983042-A (GB)
Title: Improvements in disc brakes
Inventor: MARRABLE DOUGLAS HOWARD
IPC: F16D55/14
Filed: 1961-05-08
Abstract: 983,042. Disc brakes. GIRLING Ltd. May 8, 1962 [May 9, 1961; May 19, 1961], Nos. 16775/61 and 18272/61. Heading F2E. A brake incorporates a rotatable disc having radially spaced braking surfaces with which first and second independently operable braking means co-operate, either braking means being operable on its own to apply the brake. As shown, two discs 12, 13 slidably keyed on a shaft 10 have rings of friction material 15 bonded or riveted thereto and are gripped on axial separation of rings 19, 20, between the radial surfaces of the latter and the radial surfaces 17, 18 of the housing 11. The rings 19, 20 are axially separated by applying a pull on a radially disposed rod pivotally connected via toggle links to the two rings to cause the rings to rotate relatively to one another so that balls 21 ride up inclined recesses in the rings. The latter are supported by radial lugs on the housing and rollers located between eccentric surfaces on the housing and the rings, which rollers also act as stops for angular movement of the rings. A drum 28 is secured to the disc 12 and is adapted to be engaged by a band brake comprising two straps 31, 32 carrying friction linings 33. Loops 34 at one end of the straps are anchored on a pin 35 and loops at the other end are coupled to a pin 36 to which is attached a radially extending actuating pullrod 37. Springs 38 secured at their ends to anchorages 39 normally hold the band clear of the drum which may be formed integral with the disc. In modifications, internal or external shoe drum brakes or a calliper disc brake replace the band brake.
Patent GB-1273421-A (GB)
Title: Skid control system
IPC: B60T8/172
Filed: 1969-03-31
Abstract: 1,273,421. Antiskid braking systems. KELSEY-HAYES CO. 31 March, 1969 [23 Sept., 1968], No. 16828/69. Heading F2F. An antiskid vehicle or aircraft brake system responsive to different road surfaces and in which the fluid pressure to the brakes of at least one wheel is controlled by means of a modulating valve 24 actuated by a control circuit in response to an incipient skid condition includes means for measuring the vehicle velocity and providing a signal representative thereof, means for measuring the velocity of the wheel and providing a second signal representative thereof and means responsive to the signals preventing actuation of the valve to reapply the brake until the wheel speed is of a predetermined value less than the vehicle speed. The modulating valve 24 is actuated in accordance with an electrical signal provided by a control module 26 in response to information received from magnetic sensors 28, 28<SP>1</SP> associated with toothed exciter rings 30, 30<SP>1</SP>. The module 26 includes amplifier, clipper and inverter sections 36, 36<SP>1</SP> to convert the sinusoidal input waves 28a, 28a<SP>1</SP> from the sensors into square waves 36a, 36a<SP>1</SP> of constant amplitude but varying in frequency which are fed to differentiator, integrator sections 38, 38<SP>1</SP> to provide direct current signals 38a, 38a<SP>1</SP> which vary in magnitude in accordance with the variations in frequency of signals 28a, 28a<SP>1</SP> these signals 38a, 38a<SP>1</SP> being added in a summing amplifier 42 the output signal 42a of which is fed to rate detect driver sections 48, 50. The signals 48a, 50a are used to control actuation and deactuation of the valve 24 and thus to release and reapply the brakes via an output and driver section 76 which is actuated in response to a preselected detected deceleration rate indicative of an incipient skid condition and in response to a preselected wheel velocity. The deactuation time for output section 76 and valve 24 is varied in accordance with vehicle velocity by use of a velocity ramp section 62 which stores a signal 48a in a storage circuit which has a faster charge rate than discharge rate, the latter being selected to reduce the magnitude of the stored signal in a pre-selected manner whereby vehicle deceleration is closely approximated, the obtained analogue of vehicle speed being used to vary the threshold for the third rate detector via threshold section 64. A spike suppressor section 72 eliminates actuation of section 76 as a result of transients. A safety device permitting normal braking in the event of a circuit malfunction includes a timing circuit having a thermal switch actuated by a heater and includes a warning light.
Patent GB-142357-A (GB)
Title: Improvements in or relating to course and position indicating apparatus for aircraft and the like
IPC: G01C21/14
Filed: 1919-07-05
Abstract: 142,357. Bygrave, L. C. July 5, 1919. Bearings and courses, indicating and determining.-Course and position indicating apparatus for aircraft &c. comprises a map on a movable translucent slide, means for projecting a magnified image of a small portion of the map at a time on to a screen, and means for adjusting the map slide progressively according to the course to be taken. The map slide 10 is mounted in a carrier 11, which is adapted to slide both vertically and horizontally on frames 12, 13 respectively, by the operation of cords 16, pulleys 17, and a handwheel 21, or of rack-and-pinion mechanism. A magnified image of the portion of the map at the centre of the casing is projected by means of a lamp 35, a prism 39 if desired, a condenser 36, a pin-hole stop 37, and a short-focus lens 38 on to a ground-class screen 34. The screen 34 is revoluble and graduated in degrees, and is provided with a centre mark and with a zero or course line drawn through the centre. In coursesetting, the screen is set with reference to a pointer to the course angle, and the map slide is adjusted so that the starting-point is at the centre of the screen; the map is moved along the course line until the first objective reaches the centre of the screen, which is then turned to the bearing of the next objective, and so on. In a modification, the frame supporting the map-carrier is adapted to turn with the screen to the course angle, while the map remains vertical, so that it is only necessary to operate one traversing-gear to move the map in the direction of flight from the starting-point to the objective. With this arrangement, clockwork may be employed for moving the map-carrier at ground speed, whereby changes of wind speed would be indicated. In another modification, a view of the country beneath is projected on to a second graduated revoluble screen having a course line and mounted at the side of the map screen, means being thus provided to read off the angle of drift. Instead of projection from a transparent slide, a system of opaque projection by reflexion may be employed.
Patent GB-356239-A (GB)
Title: A process and apparatus for dissolving coal
IPC: C10G1/04
Filed: 1930-05-31
Abstract: <PICT:0356239/III/1> In the process for dissolving coal as coal in a solvent, e.g. coal tar oils, anthracene &c., described in Specification 268,372, [Class 91, Oils &c.], the coal and solvent are mixed in a porous container at a temperature at which a solution of the coal is formed without decomposition thereof, and the solid insoluble constituents of the coal are allowed to form a filter layer on the inside of the container so that on removal of the solution through the layer and the walls of the container the solution is separated from foreign matter.  The coal is placed in a porous container 1 comprising a wire basket of fine mesh which is supported in an oil container 2 by a cylinder 3 containing a condenser or cooling surface 8 supplied with cooling water by a pipe 9.  The solvent in the bottom of the container 2 is heated to its boiling point by a coil 11 and an annular heating chamber 12 and the vapour passing through the coal are condensed on the surface 8, the condensate falling back and percolating through the coal.  A filter pad gradually builds up on the walls of the container 1 and prevents passage of insoluble material.  The walls may also be coated with a layer of infusional earth, sand, &c.  In a modification the oil may be withdrawn from the bottom of the container 2 and sprayed over the coal.  Vibratory and rotary baskets may be used or stirrers may be placed in the baskets, which can be raised or lowered in the oil.  A battery of containers may also be used in which the coal solution is forced from one basket to another by compressed air in co- or counter current to the supply of coal. Organic sulphur may be removed from the coal by precipitating it as a metallic sulphide by adding oxides or carbonates of copper, lead, &c. to the coal.
Patent GB-135802-A (GB)
Title: Improvements in or relating to Milling Tools and the Manufacture thereof.
IPC: B23P15/34
Filed: 1919-07-07
Abstract: 135,802. Siemens, Bros. & Co., and Riber, C. R. July 7, 1919. Milling-cutters with inserted blades are formed by positioning the blades in a mould and introducing a binding material to form the body, the melting point of the binding material being low to avoid impairing the temper of the blades. The binding material may be a tea-lead-bismuth or other alloy, or may be cement where the cutting stresses are not great.
Patent GB-732195-A (GB)
Title: Improvements in or relating to compositions for gelatin capsules and methods of making the same
IPC: C09H5/00
Filed: 1953-06-19
Abstract: A composition particularly suitable for making gelatin capsules comprises gelatin having a viscosity of 15-30 millipoises and a Bloom strength of 80 to 145 grams, a plasticizer, and water, the ratio of water to gelatin ranging from 0.6 to 0.85.  The gelatin may be obtained from bone, calfskin or pigskin and preferably has a viscosity of 22-26 millipoises and a Bloom strength of 120-130 grams. The plasticizer may be a polyhydric alcohol such as glycerine, propylene glycol or sorbitol.  A typical composition consists of gelatin 50 per cent by weight, glycerine 23.6 per cent water 26.4 per cent.  The composition may be used for making capsules for chloral hydrate choline chloride, or betaine in olive oil, peanut oil, sesame oil, cotton seed oil, corn oil or mineral oil.ALSO:A composition particularly suitable for making gelatin capsules for hygroscopic chemicals comprises gelatin having a viscosity of 15-30 millipoises and a Bloom strength of 80 to 145 grams, a plasticizer, and water, the ratio of water to gelatin ranging from 0.6 to 0.85.  It may be used for making capsules for chloral hydrate choline chloride, or betaine in olive oil, peanut oil, sesame oil, cotton seed oil corn oil or mineral oil.  The gelatin may be obtained from bone, calfskin, or pigskin and preferably has a viscosity of 22-26 millipoises and a Bloom strength of 120-130 grams.  The plasticizer may be a polyhydric alcohol such as glycerine, propylene glycol or sorbitol.  A typical composition consists of gelatine 50 per cent. by weight, glycerine 23.6 per cent., water 26.4 per cent.
Patent GB-260326-A (GB)
Title: Improvements in and relating to cleansing and disinfecting compounds
IPC: C11D7/60
Filed: 1925-07-02
Abstract: 260,326. Whitlock, L. E. July 2, 1925. Cleansing-compositions for porcelain toilet fixtures consists of ground nitre cake (Na H SO4) to which is added from 2 to 10 per cent of ground vegetable ivory and a trace of powdered soluble blue dye. The vegetable ivory is stated to prevent caking due to absorption of moisture during storage.
Patent GB-1190493-A (GB)
Title: Improvements in or relating to an Electronic Time Delay Motor Stop.
Inventor: MATTHEW HARVEY MELVIN
IPC: H02P3/06
Filed: 1968-04-09
Abstract: 1,190,493. Control of motors. MITE CORP. 9 April, 1968 [28 July, 1967], No. 17080/68. Heading H2J. The motor M driving a telegraph printer is stopped if no signal is received for a predetermined period, the motor being restarted upon reception of a signal pulse. When a line sensor 44 is in the " mark " condition (indicating that the signal loop is inactive) transistor Q6 is turned off whereby diode CR1 is forward biased and current passes through Zener diode VR1 to render transistor Q2 conductive for charging timing capacitor C1. A unijunction transistor Q1 fires when the voltage across capacitor C1 reaches a predetermined value so that the capacitor discharges to trigger a rectifier SCR. The coil of relay K1 is then energized to disconnect the motor. When the line sensor responds to a " space " condition, the transistor Q6 conducts and the Zener diode VR1 does not break down. Transistor Q2 shuts off to discontinue charging of the capacitor C1 and to interrupt the current passing through the rectifier SCR. The relay is then de-energized and the motor is energized. When dealing with a telegraph system which is normally deenergized when there is no signal, the input connection 60 is connected to the " mark " coil 56 instead of the " space " coil 58. Alternatively, the conductor 60 may be connected directly to the telegraph line.
Patent GB-1177855-A (GB)
Title: Connector and Connection
IPC: H01R4/24
Filed: 1967-04-13
Abstract: 1,177,855. Wire connectors. MINNESOTA MINING & MFG. CO. 13 April, 1967 [14 April, 1966], No. 17090/67. Heading H2E. A solderless wire connector having a resilient insulating body 12 with two or more wire receiving channels 17 and 18 has a transverse slot 20 for receiving a resilient conductive contact member 11 which has one or more slots for making contact with a wire or wires and is held in position when a hinged cover 16 is closed over it and fastened at 34, 35. The body, which may be an injection moulding from polypropylene or made from nylon or polycarbonate, may have a slot 19 and slots between the channels to permit lateral insertion of the wires. The body may have a hinge 30 opposite the slot 19 and there may be one or more tabs (44) (Fig. 4, not shown) for closing the ends of the channels. The contact member which may be of hardened copper, brass, phosphor bronze or plated steel may have a spring clip socket contact (53) (Fig. 5, not shown) and a single pair of contact lobes fitting through an L-shaped slot in the top of the body, so that the socket contact rests in a trough in the body and receives a plug contact.
Patent GB-419616-A (GB)
Title: Improvements in or relating to safety devices for use with machinery
IPC: F16P3/08
Filed: 1933-06-15
Abstract: 419,616. Safety devices. JEPSON, W., 47, Lofting Road, Barnsbury, London. June 15, 1933, No. 17152. [Class 80 (iv).] Relates to means for keeping locked a part of a machine such as a cover sc long as the machine is rotating. The cover may or may not rotate with the machine. A catch, not shown, securing the cover is connected by suitable means to a rod 1. The rod 1 is biassed towards the right by a spring 3 with a fixed abutment 2 and when in the position shown holds the catch in locking position. A lever 4 is pivoted at 5 on the end of the rod 1 and is normally held by a spring 6 in the position shown resting against a stop 8. A spring pawl 12 pivoted at 10 on the end of the lever 4 is then held in the inoperative position shown by a second stop 9. A ratchet wheel 13 is geared to the machine, which may be a hydro-extractor, so as to rotate in direction f<1> when the machine is rotating. When the machine is stopped, on moving the lever handle 15 in direction f the pawl 12 engages and is held by the stopped ratchet 13 so that further actuation of the lever 4 causes it to pivot about the fixed joint 10 and so pull the rod 1 to the left and release the catch, freeing the cover. If an attempt is made to release the catch while the machine is running, since the pawl 12 cannot get a resisting hold on the ratchet 13 which is turning from it, the lever 4 merely pivots ineffectively about the unmoved pivot 5, the cover remaining locked.