baber/WOPTO huggingface dataset:
Patent GB-1429640-A (GB)
Title: Colour formers
IPC: B41M5/136
Filed: 1972-04-25
Abstract: 1429640 Colour former compositions WIGGINS TEAPE Ltd 10 July 1973 [25 April 1972] 19087/72 Heading C4A [Also in Divisions D1- D2] A colour-former composition for use in a pressure-sensitive copying system comprises a colourless colour former capable of conversion to a dyestuff of the thiazine series when brought into contact with an electron-accepting substance, and an amount of an aliphatic amine or an optionally substituted guanidine or an optionally substituted hydrazine sufficient to stabilize the dyestuff when formed. The dyestuff precursor may be of formula wherein X is OH, NH 2  or substituted NH 2 ; Y is H, OH, NH 2  or substituted NH 2 ; Q is O or NH; n is 0 or 1; R is alkyl, aryl or aralkyl; rings A and B may also contain further constituents. Preferred compounds are those in which each of X and Y is dimethylamino or diethylamino, in particular benzoyl leuco methylene blue (10-benzoyl-3,7-bis-(dimethylamino)phenothiazine). Suitable amines include n-hexylamine, n-dodecylamine, hexamethylene diamine, ethanolamine, triethanolamine, N,N<SP>1</SP> - diphenylguanidine, N,N<SP>1</SP>- di-o-tolylguanidine, hydrazine and alkyl substituted hydrazines, used in an amount 0À3- 30 % by wt. of the colour-former. The two compounds may be mixed in the presence of a solvent, e.g. petroleum ether, and coated in capsule form on a paper sheet. The colour-former sheet is used in conjunction with a second sheet coated with, e.g., silica or attapulgite.
Patent GB-714124-A (GB)
Title: Improvements relating to rubber glazing strips
Inventor: RAMSAY THOMAS WILSON
IPC: B60J10/00
Filed: 1952-07-29
Abstract: 714,124. Glazing. MORRIS MOTORS, Ltd. Sept. 3, 1953 [July 29, 1952], No. 19121/52. Class 20 (3) A rubber glazing strip comprises a pair of limbs a, b, Fig. 2, with an intervening channel c for receiving a window pane, the base of the channel being interrupted by a continuous longitudinal groove d permitting a hinge-like movement of the limbs and the curing is effected with the base of the channel hinged open but with the limbs a, b abutting at the mouth of the channel. Initially the portions e, f of the base of the channel are inclined to one another and the base of the strip has correspondingly inclined portions g, h. After the strip has been apa sheet metal surround m having a flange p which engages a recess j in the strip. A lip i contacts a corner n of the surround m and a plied to a glass panel k, Fig. 4, it is fitted to finishing strip q of polished metal is retained in a slot r in limb a.
Patent GB-693835-A (GB)
Title: Improvements in or relating to electro-magnetic pumps
Inventor: PULLEY OLIVER OWEN
IPC: H02K44/04
Filed: 1950-08-01
Abstract: 693,835. Dynamo-electric machines. MINISTER OF SUPPLY. July 23. 1951 [Aug. 1, 1950], No. 19156/50. Class 35. Converting electric energy into motion of fluids by the action of magnetic fields.- A pump for conducting liquids operating by the interaction of current and magnetic field has a common magnetic field core with a generator supplying the working current. In the form shown, the armature 1 is situated between polepieces 2, 3 laminated in the direction of the armature axis and spaced from the main magnetic circuit by air-gaps 7, 8 in which the liquid pumping ducts 5, 6 are accommodated. The armature conductors 10 project from the ends of the rotor core and are engaged by the collector brushes 12 which are connected by leads 13 to feed current through the liquid ducts. Instead of collecting current directly from the ends of the conductor bars, a commutator with segments of conventional construction may be used, or the conductor ends may be joined by a thin slipring. Instead of being separated from the armature by polepieces 2, 3, the ducts may be curved to lie in the air-gap between the polefaces and the armature. Specification 693,834 is referred to.
Patent GB-1433290-A (GB)
Title: Prompting device for lecturers and television announcers
IPC: A63J7/00
Filed: 1974-05-02
Abstract: 1433290 Prompting device Q CO INDUSTRIES Inc 2 May 1974 19224/74 Heading A6M A prompting device for speakers comprises a cover sheet 16, forming the upper surface of hollow base 10, which supports a manuscript having a message thereon, a television camera 13 swingably mounted together with lamps 14 and 15 on supporting means 11 and 12, an electric motor 25 and drive rolls 41 mounted within the base for moving the manuscript along the upper surface, manual means for varying the motor speed, and connecting means coupled to the television camera for dsiplaying the message on the manuscript to a television tube in front of a speaker. The manuscript is placed on the sheet 16 and under retaining cover 17 which has a window 18 for framing the messages to be picked up by the television camera and an insert 20 for aiding entry of cards and small pieces of paper. The television camera 13 and lamps 14, 15 are adjustalbly mounted on plate 27 which is pivoted on supports 11 and 12 and rotatably adjusted by means of arcuate slots 26 and locking screws 40. The manuscript is passed through the field of view of the camera by means of the drive rollers 41, connected to motor 25, and idler rollers 46 urged against rollers 41 by means of springs 48; the speed of passage being controlled by an operator by means of disk 24. The camera may be swung from the vertical position by the operator to convey hand signals or other information to the speaker. The message is transmitted via cable 52 to the television tube in front of the speaker; additional picture tubes may be coupled to the prompting device.
Patent GB-719272-A (GB)
Title: Leak detector
IPC: G01M3/18
Filed: 1952-07-30
Abstract: 719,272. Tanks and cisterns. WINGFOOT CORPORATION. July 30, 1952 [Dec. 29, 1951], No. 19238/52. Class 69 (1). [Also in Groups XXXIII, XXXVI and XXXVIII]  A fuel tank 2 carried in the wing 1 of an aircraft between the spars, consists of a group of tank segments 5, 6 clamped together between the ribs 7, 8, 9 with a backing board 10 attached to the ribs. The ends of the segments have a bead portion 12 formed round its periphery which engages with a groove 13 in the ribs 7, 8, 9. A clamping ring 14, held by a cap 15 screwing into a threaded hole in the ribs, prevents fluid leakage at the joint.
Patent GB-265243-A (GB)
Title: Improvements in or relating to the manufacture of metals and objects therefrom
IPC: B22D13/00
Filed: 1925-07-29
Abstract: 265,243. Merle, J. July 29, 1925. No Patent granted (Sealing fee noi paid). Casting processes.-In the casting of metal centrifugally the quality thereof is improved ty feeding superheated metal rapidly to the mould and subjecting it to an intense regulable centrifugal pressure for a predetermined time. Thus for casting steel refrigerator pipes with blades 3" in diameter and a wall thickness of 5 m.m. a temperature of 1700‹ C. and a tangential speed of 8m. per second for 3 minutes is employed. Two separate metals may be poured into the mould successively, for instance an alloy comprising 50 per cent copper, 20 per cent steel and 30 per cent lead, may also be cast.
Patent GB-168588-A (GB)
Title: Improvements in and relating to the sealing of bottles, jars, boxes, and other receptacles
IPC: B67B3/24
Filed: 1921-07-16
Abstract: 168,588. Talansier, J., (Assignee of Bergounioux, M.). Aug. 30, 1920, [Convention date]. Vacuum closures.-A cap for the sealing of bottles, jars, boxes, and other receptacles by means of a vacuum consists of a stamped metallic member having a circular part 1 and an end part 2 the central part 3 of which is concave, a resilient washer or ring 5 being held in an inner groove 4 at the junction of the wall 1 and end 2. The edge of the wall 1 of the cap which projects beyond the rim of the bottle may be pressed in under the rim.
Patent GB-120819-A (GB)
Title: Improved Hydraulic Control Valve or Check Valve.
Inventor: CROW JOHN
IPC: F16K1/00
Filed: 1917-12-31
Abstract: 120,819. Crow, J. Dec 31, 1917. Casings.-A lift valve particularly applicable for use with hydraulic machines has the casing formed with a housing E into which the valve member A is moved when the valve is opened. The valve spindle G passes through both sides of the valve chamber, and the housing has an aperture F to balance the valve and thus facilitate actuation.
Patent GB-883407-A (GB)
Title: Improvements in mine roof support assemblies
IPC: E21D23/04
Filed: 1960-05-31
Abstract: 883,407. Mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. May 31, 1960 [June 6, 1959], No. 19269/60. Class 20(2) A mine roof support assembly, Fig. 1, consists of two units A, B mounted by slides 7, 8 respectively on a common I-section guide 9 having abutment stops 10, 10a, each unit A, B consisting of a roof bar mounted on inter-connected hydraulic props 3, 4. In a modification, see Figs. 3 and 4 and 5 (not shown), the upper and lower ends of each hydraulic cylinder component are respectively connected to two vertically spaced guide racks as by slides in the form of stirrups. In a final modification, Fig. 7, the piston and cylinder components of each prop are secured to vertically spaced guides 9, 9<SP>1</SP> and the props of each unit are interconnected together by diagonal struts, the pistons being secured to the guides by releasable clamps.
Patent GB-1491282-A (GB)
Title: Apparatus for dispensing particles
IPC: G03G15/08
Filed: 1975-05-08
Abstract: 1491282 Dispensing developer XEROX CORP 8 May 1975 [17 June 1974] 19407/75 Heading B8S Toner particles to be added to a developer mix held in a sump (62), Fig. 2 (not shown), and applied to a photoconductive drum (12) in a cascade, are dispensed from a hopper 120 which is periodically vibrated and which is provided with an apertured, reciprocable grid 130 through which the particles pass to the sump, blades 134, attached to the grid 130 serving to agitate the particles in the hopper. A vibrator 80 mounted on the hopper, is actuated each time a PRINT button is pressed. A motor 83 drives gear-wheels 90, 94, the former of which transmits the drive to an endless bucket belt (56) which cascades the developer mix on to the drum (12), and the latter of which rocks a pivotable link 98 via an eccentric pin-and-slot arrangement. A pawl 104 on the link causes incremental rotation of a ratchet 106 and a wobble plate 114. This plate reciprocates a plunger rod 112 connected to the grid 130. Above the grid is a fixed dispensing plate 116 having slots 128 and upstanding stop plates 135. A lever 108 determines the incremental steps of the ratchet 106.
Patent GB-736208-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K5/00
Filed: 1952-07-31
Abstract: 736,208. Motor vehicles. YEOMAN VEHICLES, Ltd., PALMER, G. M., and TAYLOR, G. H. K. July 24, 1953 [July 31, 1952; Aug. 20, 1952; Aug. 20, 1952], Nos. 19426/52, 20920/52 and 20950/52. Classes 79(2), 79(3), 79(4) and 79(5). [Also in Group XXXII] A chassis frame comprises an X-shaped frame 10 disposed aft of, and at a higher level than, a V-shaped frame 15, the two frames being connected together by upright members 14, 17. The engine unit 44, which includes a gear box 45 and differential gear 47, is connected forwardly at 51, to a cross member 16 of the frame 15, and rearwardly at 54, to a cross member 12 of the frame 10. Half-axle casings 58 are universally-jointed at 59 to the differential 47. Each rear wheel is carried by arms 60, 61 connected to the unit 44, and is suspended by a respective longitudinally - disposed leaf spring 64 (see Group XXXII). The front wheels are suspended by a pair of transverselydisposed and verticallyspaced leaf springs 20, each pair of adjacentlydisposed ends of the leaf springs being connected to a respective front wheel king pin 24. A steering arm 42 of each wheel is connected by a track rod 38 to one of a pair of pivots 35, 36 on an arm 34 carried by a shaft 31. The steering column 26 is connected to the shaft 31 via a gear box 28 and a coupling 30. A power take-off is provided at 49.
Patent GB-629423-A (GB)
Title: A process for the manufacture of 3-methoxy-pyridine and derivatives thereof
IPC: C07D213/65
Filed: 1947-07-21
Abstract: 3-Methoxy-pyridine which may be substituted with carboxylic groups or groups inert to the methylating agent (e.g. alkyl, aryl, aralkyl, halogen, cyano), is prepared from the corresponding 3-hydroxy-pyridine and phenyltrimethyl-ammonium hydroxide.  The hydroxy compound may be used directly or converted into its alkali metal derivative by treatment with an alkali metal alcoholate; in the latter case a mineral acid salt of phenyl-trimethylammonium hydroxide is used as methylating agent.  If the compound contains a free carboxyl group, this is esterified during the course of the reaction. An inert solvent such as xylene is preferably used. Examples show the methylation of the di-methyl and di-ethyl esters of 2-methyl-3-hydroxy-pyridine-4 : 5-dicarboxylic acid, the product being useful in the synthesis of vitamin B6; the methylation of the free acid is also mentioned.
Patent GB-312842-A (GB)
Title: Improvements in bumpers or collision-guards for vehicles
IPC: B60R19/04
Filed: 1928-07-05
Abstract: 312,842. Fageol, R. B. July 5, 1928. Collision-guards. -A vehicle bumper or collision-guard, particularly for the rear of a vehicle, comprises a pair of impact members 18 which are adjustably and resiliently supported by means of looped members 20 and intermediate bars 19 on the ends of a transverse support 21 mounted on the vehicle chassis. One end of each impact member is attached to the looped resilient member 20 by means of a bolt 26 slidable in a slot 25 in the member 20, while the other end is attached to the support 21 by means of the intermediate bar 19 having a series of holes 23, through one of which is passed a bolt 24 also passing through a single hole 24<1> in the support 21 and through one of a corresponding series of holes 27 in the looped member 20. By unloosening and withdrawing the bolt 24 the bumper tip may be adjusted as a whole on the support 21, thus varying the effective width of the buffer; or, by withdrawing both bolts 24, 26, the impact member 18 and bar 19 may be adjusted relatively to the support 21 and resilient member 20, thus varying the width of the bumper tip. Preferably the impact members 18 have a channel cross-section as shown in Fig. 5, with inwardly directed flanges 29 embracing the edges of the bars 19 and members 20.
Patent GB-1412967-A (GB)
Title: Coin selecting apparatus
Filed: 1972-04-27
Abstract: 1412967 Testing coins D A LINDSAY 24 April 1973 [27 April 1972] 19651/72 Heading G4V A coin tester includes a coin support 6 spaced from a support plate 3 against which a face of the coin bears, coins below a predetermined thickness falling through an aperture 4 in the support plate. In the embodiment shown support 6 is forms a continuation of an inclined coin ramp 2 and is adjustably positioned on a member 5 bridging the aperture 5. The support plate 3 may be vertical a leaf spring then being provided to urge the coin against the plate. The support 6 may alternatively be positioned to intercept coin falling down a vertical coin shoot. A mechanism for receiving coins 1, 1a of two denominations includes two testing paths each also provided with minimum diameter testing windows 33, 33a. An acceptable coin inserted at 32 will operate a switch trigger 37, which is sensitive to the weight of the coin, to actuate solenoids to move a blocking bar 38 across the slot 32 and withdraw a blocking bar 38a from slot 32a. Operation of switch trigger 39 by a coin inserted at 32a initiates operation of the coin-freed apparatus and resets bars 38, 38a. The switch triggers may be associated with counters if the insertion of more than one coin of each denomination is required. In another embodiment (Fig. 4, not shown) coins from the testing paths are accumulated in respective channels (46), (46a) the final coin inserted rolling over the accumulated coins into a channel (48) to operate a switch trigger, initiate operation of the coin-freed apparatus and energize solenoids to withdraw stops (47), (47a) from the coin channels (46), (46a). The position of the stops (47), (47a) is adjustable to vary the number of coins required.
Patent GB-786802-A (GB)
Title: Improvements in or relating to a method of and means for manufacturing paper
IPC: D21H19/54
Filed: 1955-07-07
Abstract: 786,802. Coating and sizing paper. WARREN CO., S. D. July 7, 1955 [Aug. 23, 1954], No. 19673/55. Class 96. Paper, which may be made from pulp which has been made alkaline (pH=8.5 to 12.5) as by adding potassium hydroxide or sodium carbonate and which may contain mineral filler, e.g. calcium carbonate, clay, or titanium dioxide, the particles of which may have been coated with mannogalactan, is coated and also sized, by applying to one or both surfaces, e.g. during manufacture, an aqueous dispersion of a pigment; e.g. clay, talc, calcium carbonate, magnesium carbonate, barium sulphate, zinc sulphate, titanium dioxide, satin white, ochre, &c., an adhesive or binder, e.g. animal glue, gelatine, casein, soya protein, modified starch, British gum, dextrin, polyvinyl alcohol, cellulose ethers or synthetic rubber latex and an aliphatic ketene dimer, e.g. having aliphatic hydrocarbon chains of 6 to 20 carbon atoms, e.g. hexyl, decalyl, tetradecalyl, hexadecalyl, or eicosanyl. Ketene dimer migrates from the coating into the web to provide the sizing or additional sizing therefor. Specification 522,204 is referred to.
Patent GB-148696-A (GB)
Title: Improvements in the manufacture of mitts
IPC: A41D19/01
Filed: 1919-08-11
Abstract: 148,696. Taylor, H. F. Aug. 11, 1919. Gloves; mittens. -. To protect the knuckles the glove is made in the form shown, two pieces A being inserted to keep the back of the glove from pressing against the knuckles.
Patent GB-877860-A (GB)
Title: Process for making improved greases
Inventor: GREENWOOD JOHN
Filed: 1959-06-09
Abstract: A synthetic lubricating oil is thickened to a grease with a metal soap of a C6-C16 carboxylic acid and a preformed metal soap of a C1-C6 carboxylic acid, the relatively long-chain soap being preformed in a mineral oil and the dispersion so obtained added to the base oil, the mixture then being dehydrated at a temperature not above 440 DEG F. and homogenised.  The mineral oil may form up to 20% by volume of the total oil present.  The base oil may be an ester, a complex ester, a hydrocarbon polymer, a silicone oil or a polyglycol derivative; the preferred oil is di-2-ethyl-hexyl adipate.  The preferred soaps are the calcium salts of capric and acetic acids, and they may form from 5% to 50% of the final composition, by weight. The greases may also contain anti-oxidants, e.g. phenothiazine, 2,6-di-tert-butyl-4-methyl-phenol, phenyl-a -naphthylamine or phenyl-b -naphthylamine.  In an example, a slurry of calcium acetate in dioctyl adipate was added to a suspension of the calcium soap of coconut fatty acids in mineral oil, the mixture heated to 425 DEG F. and milled, with the addition of phenyl-b -naphthylamine.  The resulting grease is compared with one in which the long-chain soap was not pre-formed.
Patent GB-998044-A (GB)
Title: Standard noise generator
IPC: H03B29/00
Filed: 1962-05-23
Abstract: 998,044. Noise generators. E K. RZYMOWSKI. Aug. 23, 1963 [May 23, 19621, No. 19857/62. Heading H3B. In a noise generator heat is applied to a black body of semi-conductive material and the emitted continuous noise spectrum is fed to a waveguide or coaxial line via a coupling, the junction of which with the black body is provided with means for preventing heat transfer, by air circulation, from the black body to the coupling. Fig. 1 shows a wedge-shaped waveguide termination 3 of refractory material, e.g. powdered silicon or silicon carbide bonded by a refractory material, acting as a black body and being inserted in cavity 2 of electric furnace 1. A temperature sensing element may be inserted in bore 5. Flange 6 of the termination 3 is choke coupled to flange 7 of waveguide coupling 8 and a window 9 of a dielectric such as mica is inverted between the two flanges to prevent air circulation. Thus since the terminations 3 are not in direct contact with any metal parts the conduction of heat is kept to a minimum. The waveguide coupling 8 is connected to a waveguide by Hange 11, and may be made of platinum, stainless steel or nimonic alloys. Alternatively it may be of ceramic material metalized on its inner surfaces with platinum or other suitable metal. To ensure that there is little or no heat transfer to the waveguide joined to the coupling 8 the end of this coupling which lies outside the electric furnace may be water-cooled. In Fig. 2 (not shown) the termination is provided with a centre conductor of a coaxial line.
Patent GB-956456-A (GB)
Title: Improvements in or relating to pneumatic braking installations on trailer vehicles
IPC: B60T15/54
Filed: 1960-06-07
Abstract: 956,456. Fluid pressure brakes. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. June 7, 1960 [June 26, 1959], No. 19881/60. Heading F2F. A compressed air brake valve assembly comprises a piston 14 subjected to a moderating pressure in chamber 34 and rigidly connected to a piston 16 subject to brake cylinder pressure in chamber 36, a piston 28 subject to pressure in automatic pipe A, a manually-controlled brake applying and releasing device D controlling all the brakes and a number of auxiliary brake applying and releasing devices Da to independently release associated brakes. Valve 74 is opened by member 72 and rod 60 to change chamber 40 from source S to lower piston 28 and open valve 52 to apply the rear trailer brakes via pipe C 1  and the front trailer brakes via pipe 98, valve 94 normally opened by automatic pipe pressure in chamber 88 and pipe C 3 . The front brakes can be released by lowering member 92 and rod 80 to close valve 94 and vent the brake cylinders via a passage through rod 80. All the brakes are released by closing valve 74 and venting chamber 40, chamber 36 then being vented via valve 58. The brakes are applied automatically by loss of pressure in pipe A. In a modification in Fig. 2 (not shown), the pistons 14, 16 and 28 are rearranged. Specification 943,641 is referred to.
Patent GB-869721-A (GB)
Title: Closure device for bottles and like containers
IPC: B65D41/12
Filed: 1959-06-10
Abstract: 869,721. Stoppers. SAARLANDISCHE KRONENKORK-FABRIK NIKOLAUS MORLO G.m.b.H. June 10, 1959 [June 11, 1958], No. 19945/59. Class 125(3). A bottle closure comprises a stopper 2 of resilient material, e.g. polyethylene, and a relatively rigid, preferably metal, crown cap 3 with a central aperture, the stopper having a central boss 8 with a reduced portion 9 and flared end 10. The stopper is axially displaced under pressure from the contents of the bottle so that a shoulder formed on the boss 8 engages against the cap 3, while the wall 5 of the stopper is radially deformed against the inner side of the bottle neck 1. The same pressure causes the cap 3 to bow outwards slightly at its central part so that it grips the neck 1 more tightly, Fig. 2 (not shown).
Patent GB-355433-A (GB)
IPC: A01B15/06
Filed: 1930-07-01
Abstract: 355,433. Implements for working land. WIRTH, G. and WIRTH, R., (trading as WIRTH, G.), 31, Voerderstrasse, Milspe, Westphalia, Germany. July 1, 1930, No. 19957. Convention date, July 1, 1929. [Class 6 (i).] The removable tip of a ploughshare is provided with a rearwardly projecting landside wing 9, a lobe 3 on the wing for securing it to the share blade 2, and a groove 4 to receive the front end of the blade 2. It may be fixed by screws or rivets passing through the lobe 3, or by means of projecting pins engaging in keyhole slots.