baber/WOPTO huggingface dataset:
Patent GB-471614-A (GB)
Title: Improvements in or relating to the production of light-sensitive diazotype layers
IPC: G03C1/54
Filed: 1936-05-11
Abstract: 471,614. Photographic diazotype layers. SOKAL, S. (Kalle & Co. Akt.-Ges.) May 11, 1936, No. 13320. [Class 98 (ii)] Light-sensitive layers are prepared with the diazo compounds of p-aminodiphenyls having an etherified hydroxy group as substituent. The substituent may be in the same benzene ring as the diazo group and is preferably an alkyl ether group, although aralkyl and aryl ethers may be used. Two such substituents in 2- and 5-positions may be used and the second benzene ring may also contain ether or other groups preferably in 4-position, the numbering in the rings starting from the bond between them. In examples: (1) the diazo compound of 4-amino-2 : 5-diethoxydiphenyl, tartaric or boric acid, and, if desired, an antiyellowing agent are applied to paper and, after exposure, developed with phloroglucine and sodium acetate ; (2) the diazo hydrochloride of 4-amino-2 : 5 : 4<1>-trimethoxydiphenyl, tartaric acid, boric acid, thiourea, ammonium sulphate, and aluminium sulphate are applied to paper, a developer consisting of disodium phosphate, trisodium citrate, acid sodium tartrate and phloroglucine being used ; (3) the .zinc salt of diazo 4-amino-2 : 5-diethoxy-4<1>- methyldiphenyl, tartaric acid, sodium naphthalene trisulphonate, and sodium 1-naphthol-4 : 7-disulphonate are applied to paper and developed with ammonia gas or a solution of sodium acetate or bicarbonate ; (4) the diazo hydrochloride of 4-amino-2: 5-diethoxy-4<1>-acetylaminodiphenyl, citric acid, boric acid, ammonium sulphate, aluminium sulphate, and thiourea are applied to paper. A developer of phloroglucine, sodium acetate, and sodium bicarbonate is used; (5) the diazo chlorohydrate of 4-amino-2 : 5 : 4<1>-triethoxydiphenyl, sodium bisulphate, tartaric acid, aluminium sulphate, citric acid, and thiourea is applied to paper or cellulose hydrate foil, a developer containing phloroglucine and sodium bicarbonate being used. In place of the above, the diazo compounds of 4-amino-2: 5: 5<1>- triethoxydiphenyl or 4-amino-2 : 5-diethoxy- 4<1>-methoxydipheny-1 may be used; (6) the diazo hydrochloride of 4-amino - 2 : 5-di - nbutoxy-4<1>-ethoxydiphenyl, tartaric acid, and thiourea are applied to paper and, after exposure, developed with phloroglucine and sodium acetate.
Patent GB-133382-A (GB)
IPC: B62D55/04
Abstract: 133,382. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Aug. 10, 1918. Endless-track, vehicles. - The rear driving. wheels of a motor-lorry &c. are replaced by endless.track attachments, one for replacing the rear side wheel being shown in Fig. 1 with the track removed. The rear springs 4 of the lorry A are fitted with an auxiliary-axle 3 carrying driving- sprockets 2 driven by pinions 1 on the ends of the ordinary differential shaft. A bifurcated canti. lever frame 9 straddles each sprocket, one end being mounted on the auxiliary axle, and the other end having a laminated spring attachment 10 to a bracket 11 on the main frame. The cantilever frames are connected by a cross-shaft 12 to which the endless-track trucks 14 are connected by brackets 17 pivoted at one end to the truck and having a spring connexion 20 at the other end. An idler wheel 19 is mounted at the front end of each truck, the endless-track chain passing round this wheel and the sprocket-wheel. Guide-rollers 22, 25 are provided for the chain, and the oscillations of the truck are limited by buffer stops 23 on the cantilever frame.
Patent GB-1146620-A (GB)
Title: Improvements in or relating to moulds for foodstuffs
IPC: A47J43/20
Filed: 1966-03-25
Abstract: 1,146,620. Moulds for foodstuffs. REXALL DRUG & CHEMICAL CO. 25 March, 1966 [29 March, 1965], No. 13346/66. Heading A4A. A mould for mouldable material comprises (a) a mould portion having side walls which taper inwardly towards one open end and define an enclosure open at both ends, and (b) an end-closure of flexible resilient material attachable to the smaller end of the mould portion to form a moisture-tight seal therewith, the closure being removable outwardly from the smaller end of the mould portion. The larger end of the mould portion may also be provided with a removable end-closure which may be in the form of a tray which acts as a combined end-closure and serving member (see Fig. 3). The mould member may engage with the end-closure by means of an upstanding flange on the periphery of the mould member and a co-operating U-shaped groove in the end-closure. The mould portion may be made of a stiff plastics material and it may be provided with a plurality of interchangeable endclosures of differing configurations so constituting a kit for making up a mould.
Patent GB-869312-A (GB)
Title: Treating fibrous material
IPC: B08B5/02
Filed: 1959-04-20
Abstract: 869,312. Screening apparatus. JOHNS-MANVILLE CORPORATION. April 20, 1959 [April 23, 1958], No. 13361/59. Class 117 Dust or other foreign matter is removed from fibrous material in apparatus comprising a housing 10, connected by ducts 11, 12 to a vacuum creating source, and having openings in its end walls for the passage of endless screens 17, 35 between which the material to be treated is carried, and subjected alternately to upwardly and downwardly directed gas streams from staggered groups of nozzles 57, 62 during its passage through the housing. Thus the dust &c., is forced through the screens and carried away from the housing through the exhaust ducts 11, 12. Foam rubber strips 26, 27, 28, Fig. 3, are attached to the lower screen 17, and untreated material is fed on to it from a hopper 30. Rollers 40, 43 extend the full width of the screens and are adjustably mounted so that the co-operating runs of the screens are urged together whereby the strips 26, 27, 28 are compressed slightly to form separate compartments 29. Tensioning rolls 48, 45 are provided for the upper and lower screens respectively. A power source 23 drives the lower screen, and the upper one is moved by frictional engagement with the rubber strips. The nozzles 57, 62 extend respectively from lower and upper headers 55, 60 respectively, connected to blowers. An aspirator 65 removes the cleaned fibres from the lower screen, and a suction box 68 cleans the inner surface thereof.
Patent GB-908136-A (GB)
Title: Improvements in colour photography
Inventor: SAUNDERS DAVID GEORGE
IPC: G03C7/30
Filed: 1960-04-14
Abstract: 908,136. Stabilizing prints and transparencies. KODAK Ltd. April 14, 1961 [April 14, 1960], No. 13378/60. Class 98 (2). Prints and transparencies containing a dye image, which have been developed, fixed and preferably washed, are rinsed with an aqueous solution of formamidine hydrochloride, methylol dicyandiamide or dimethylol dicyandiamide to reduce fading and staining of the image.
Patent GB-555032-A (GB)
Title: Improved flame preventing means
IPC: A62C4/00
Filed: 1942-09-25
Abstract: 555,032. Preventing fires and explosions. WORTMAN, B.. and NEWHAVEN ENGINEERING CO., Ltd. Sept. 25, 1942, No. 13500. Addition to 381,209. [Class 47 (ii)) The invention of the parent Specification is now applied to screens other than conical screens for preventing the ignition of combustible liquids and vapours and the passage of flame, such screens being formed from metal sheeting having substantially uniformly distributed over its surface a large number of tapering, preferably conical, perforations. The screens may be employed to surround transformers or as a cover for containers for solid materials the dust of which creates an explosive mixture with the air.
Patent GB-1092595-A (GB)
Title: Improvements in vehicle substructures, components therefore and vehicles provided therewith
IPC: B62D49/06
Filed: 1966-03-28
Abstract: 1,092,595. Mining vehicles. ATLAS COPCO A.B. March 28, 1966 [April 5, 1965], No. 13513/66. Headings B7D and B7H. [Also in Division E1] The frame structure of an underground mining vehicle includes two interchangeable side frame elements 4 each of which is bolted to a central frame structure supporting materials handling means and carries track drive sprockets or ground wheels 7 driven from a reversible variable-speed sliding vane compressed-air motor 19 through a gear train contained within the side frame element 4. A clutch 16 controlled by a lever 20 couples a gear 15 meshing with a pinion 17 on each motor shaft 18 to a gear 14 driving the wheel shafts 6 through gears 8, 10, 11, 12, 13. The vehicle carries a shovel 27 mounted on a pivoted arm 28 which is actuated by a chain 34 wound on a reel powered by a compressed-air motor 32 under the control of a valve 36. A receptacle 31 which receives the shovel contents is tiltable by an air cylinder 41 into a raised discharge position wherein a rear wall 38 is opened by a chain 40 connected to an arm 76. A handle 44 actuates valves 45, 46 providing independent control of the motors 19 for steering purposes. Compressed air is supplied to the vehicle through a hose connection 47, main valve 48 and an oiler 49. Figs. 8-12 (not shown) illustrate modifications in which the vehicle is provided with a side-tipping shovel or a shovel movable from a front digging position to a rear discharge position. The wheels 7 may be steerable.
Patent GB-135483-A (GB)
IPC: B63B23/36
Abstract: 135,483. Stewart Davit & Equipment Corporation, (Assignees of Hills, H. B.). Nov. 22,1918, [Convention date]. Boat-lowering cradles.-A launching-carriage adapted to be temporarily secured to the side of a ship's boat A comprises a curved buffer bar C maintained in position by a pair of brackets I with hooked extensions I<1> engaging with the gunwale A<1>. During lowering-operations, the boat is kept away from the ship's side by rollers F mounted at the outer ends of longitudinal spring bars D which are adjacent to cam-shaped slots C<2> in the buffer-bar. In the event of the boat swinging with violence towards the ship's side, the shock is taken up gradually by the spring bars co-acting with the. cam surfaces. In a modification, the bars D are rigid and the shock is taken up by springs located in recesses in the extremities of the buffer-bar.
Patent GB-997812-A (GB)
Title: Improvements in centrifugal pumps
Inventor: SCHENCK ROBERT CUMMING
IPC: F04D29/22
Filed: 1962-04-09
Abstract: 997,812. Centrifugal pumps. DURWON CO. Inc. April 9, 1962, No. 13564/62. Heading F1C. [Also in Division F2] A centrifugal pump comprises an impeller having an annular skirt 40 in sealing relation at 41 with a portion of a cover plate 11 (or with a separate ring). Ribs 44, of rectangular crosssection, on the back of the impeller disc 30 act as auxiliary pumping vanes to act on liquid passing around scalloped portion 35 of the periphery of the impeller disc, thereby assisting the main pumping vanes 33. The ribs 44 are hollow to provide passages 45 which exert a further pumping effect, whereby liquid reaching the annular space 42 enclosed by the skirt 40 is removed. The resultant reduction in pressure in the space 42 reduces the pressure to which the shaft seal 20 is subjected. To enhance this effect, the main vanes 33 may be of reduced radial dimensions so that the peripheral speed of the ribs 44 is greater than that of the main vanes.
Patent GB-116003-A (GB)
Title: Improvements in the Manufacture of Pearl or Imitation Pearl Earrings, Scarf-pins, and the like.
Inventor: BISHTON ALFRED HENRY
IPC: A44C17/00
Filed: 1917-09-21
Abstract: 116,003. Bishton, A. H. Sept. 21, 1917. Mounting gems and the like.-Pearls, artificial pearls, or stones are attached to the end of the wire bow of an ear-ring or to a scarf-pin &c. by bending back the end b' of the wire b and inserting it into a hole drilled in the stone. In the case of a solid stone, Fig. 3, the end b' of the wire springs into engagement with one of the inequalities a<2> formed during drilling, and, in addition, the wire may be cemented in position; in the case of a hollow stone (not shown), the end b<1> is lengthened so that its extremity engages against the interior of the shell. When a hollow stone having a filling is employed, Fig. 6, the end b<1> of the wire is bent into spiral form and screwed into the filling. A metal cap b' serves to cover the aperture in the stone and may be cemented in position.
Patent GB-1426250-A (GB)
Title: Dummy ingot for curved continuous casting installation
IPC: B22D11/08
Filed: 1973-03-21
Abstract: 1426250 Continuous casting FIVES LILLECAIL 21 March 1973 [29 March 1972] 13646/73 :Heading B3F [Also in Division F2] Links 10, 12 of a chain starter bar are interconnected by pivot pins 16; a limited pivoting of the links is permitted since at each interconnection a key or cotter pin, is secured to one link, or to the pivot pin fixed to the other link (as shown a key 20 is secured to the pivot pin 16), and a portion of the key or cotter pin is loosely received (as shown in a recess 24) in the pivot pin or in the one link. A cotter pin (30), in an embodiment not shown, passes through a transverse bore through the pivot pin (16) and limited pivoting is permitted because the bore has a taper from each end to its middle where its cross-section equals that of the cotter pin. The ends of the latter (30) are force-fitted in holes in whichever link has not got the pivot pin (16) secured to it. Each link 10 has at each end the H-shaped formation shown in Fig. 1. Four pivot pins 16 (one to each pair of arms 14 provided by the H formation) are secured by keys 18. Each recess 24 is a groove in a link 12 and extends the length of the bore 26 which bears on the corresponding pivot pin 16.
Patent GB-1211792-A (GB)
Title: Voltage stabilisers
Inventor: RODBARD JEFFREY WILLIAM
IPC: G05F1/56
Filed: 1968-03-21
Abstract: 1,211,792. Automatic voltage control. STANDARD TELEPHONES & CABLES Ltd. March 21, 1968, No.13713/68. Heading G3R. A voltage regulator comprises an input terminal 2, an output terminal 3 and a common input/output terminal 1; a first transistor Tr1 having its emitter/collector path connected in series between terminals 2, 3 and having its base connected to terminal 1 over a resistor R1 and the collector/  emitter path of a second transistor Tr2; and a second resistor R2 connected to the base of transistor Tr2 which base is also connected to the common terminal 1 via the collector/emitter path of a third transistor Tr3 having its own base connected to the output terminal 3 over a resistive element, e.g. a Zener diode Z. When an unstabilized voltage is applied to terminals 1, 2 the transistor Tr1 is automatically controlled in known manner to maintain a constant voltage across terminals 1, 3 and the Specification explains how the particular arrangement described provides this stabilized output until the applied voltage falls to a value which exceeds the required stabilized output by a value less than the potential drop between the emitter and collector of transistor Tr1, and also continues to provide an unstabilized output when the applied voltage has dropped below the voltage required to give the stabilized output. A variable resistor P may be connected between the base and emitter of transistor Tr3 to provide for adjustment of the stabilized output voltage, and a capacitor may be connected between the collector and base of transistor Tr2 to damp the feedback signal and prevent hunting.
Patent GB-551058-A (GB)
Title: Improvements in electrical switching apparatus especially adapted for use with pneumatic tube conveying systems
IPC: B65G51/42
Filed: 1942-08-19
Abstract: 551,058. Thermionic relay circuits. LAMSON ENGINEERING CO., Ltd., and STEPNEY, W. J. Aug. 19, 1942, No. 13775/41. [Class 40 (v)] A thermionic relay circuit comprises a relay which is energized upon changes in the anode current of a grid controlled valve, and normally open switching contacts shunted by a condenser, which are adapted upon momentary closure by the carrier of a pneumatic tube conveying system, to connect the grid and anode of the valve, the condenser serving to prolong the duration of the change of anode current sufficiently to energize the relay. As shown, the anode circuit of a valve 1 including relay coil 2 is supplied from a secondary winding 14c through rectifier 12, condenser 9 and resistance 11. Momentary closure of contacts 6 gives a positive impulse to the grid and the change in anode current energizes relay coil 2'to close contacts 3 and 4. To ensure operation of relay 2, the impulse is prolonged by the provision of a condenser 8 shunted by a resistance 10. Contacts 3 provide a maintaining circuit for coil 2 through switch 5 while contacts 4 effect energization of a power circuit connected to 7. Specification 470,560 is referred to.
Patent GB-459640-A (GB)
Title: Improvements in and relating to electric motor control
IPC: B60L15/04
Filed: 1936-05-16
Abstract: 459,640. Master control of D.C. motors; actuating controllers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 16, 1936, No. 13911. Convention date, May 17, 1935. Addition to 458,390. [Class 38 (iii)] Combination of resistances.- In a series-parallel control system, each motor 10, 13, Fig. 1, is provided with resistances 49, 50, controlled in accordance with the parent Specification, and additional control means are provided for connecting each motor in series with its controlled resistance both for the series and parallel accelerating stages. Upon operation of a controller 18, Fig. 3, to a " parallel " position, a self-maintaining relay I is energized to energize a solenoid 28 which actautes a controller 21. This controller closes switches 1, 2, 3, 9, Fig. 1, to connect the motors 10, 13, in series across the supply, and in series with the resistances 49, 50, and an additional resistance 49a. The controller then closes switches 6, 4, 8, 5 and 7 in turn first to cut out resistance 49a and then to eliminate one half of each of the resistances 49, 50, in steps. This completes the movement of the controller in one direction and the circuit of a relay II, prepared by the relay I, is completed. The relay II deenergizes the relay T, and the solenoid 28 is de-energized, with the result that the controller 21 is returned by a device such as a spring. Due to the operation of the relay II, and the de-energization of the relay I, the motors 10, 13, are connected in series with the adjustable parts of the resistances 49, 50, only, and during the return movement of the controller the switches 3-9 are operated again but in the reverse order, and the adjustable parts of the resistances 49, 50, are eliminated in steps. The controller returns to its initial position at which the motors are connected in series directly across the supply, and then a switch 22 is reclosed to energize a relay IIIa/b which de-energizes the relay II and effects parallel connection of the motors each in series with its own resistance 49, 50. These resistances are again eliminated as during the series stage by a forward movement of the controller effected by the solenoid 28, and a spring return movement. Thus the motors are finally connected in parallel directly across the supply. The movements of the controller 21 are regulated by a valve 35 in a liquid system operated on by pistons 33, 34, geared to the controller, and the valve is adjusted by a coil 37 carrying the motor current. The controller 18 has a " shunting " position in which the motors are connected in series across the supply and in series with resistances 49, 49a and 50, and a " series " position which limits the acceleration to the series stage.
Patent GB-697548-A (GB)
Title: Improvements in electric master clocks
IPC: G04C3/16
Filed: 1951-06-12
Abstract: 697,548. Electric clocks. MARUWA SEIKI KABUSKIKI KAISHA. June 12, 1951 [June 21, 1950], No. 13948/51. Class 139 An electric master clock comprises an electric clock in which a balance regulator 8, Fig. 1, is provided and for which the torque of an electric motor 2 is employed directly as the motive power, the full mechanism of the clock being enclosed permanently in an airtight case 1, adjustment or correction of the clock being effected by control of the electric motor circuit outside the case. The electric motor 2 drives the escape wheel through a spring coupling 3 and a gear train 7 and rotates a cam 6 which effects periodic closure of switches 5, 5' to send impulses to secondary clocks of the polarized armature type. The case 1 is of glass and is filled with a gas such as hydrogen or an inert gas or is filled with air at reduced pressure. The base 11 of the case 1 has external input terminal plugs 12 for the electric motor and output terminal plugs 13 for the signals to the secondary clocks. The control of the rate and correction of the clock is effected by controlling the electric motor circuit.
Patent GB-1461048-A (GB)
Title: Rolling bearings
IPC: F16C19/54
Filed: 1975-04-04
Abstract: 1461048 Bearings HOESCH WERKE AG 4 April 1975 [13 April 1974] 13955/75 Heading F2A A rolling bearing comprises an inner race 10, an outer race 11, rolling elements 19 received between co-operating raceways on the races 10, 11, and an additional raceway 101 on one of the races, the additional raceway being co-operable with a further raceway 161 on an additional ring 16 which is secured to the other of the races 10, 11 so that additional rolling elements 17 inserted between the raceways 101, 161 will enable the bearing to continue to function after wear has rendered the first mentioned raceways inoperative. An alarm system 12-15 gives warning of undue wear in the main bearing, whereupon the inner race can be lifted by means of hydraulic jacks 22, and the emergency rolling elements 17 can be inserted. A sealing strip 18 can be attached to the ring 16. In a further embodiment, the inner race is in two parts, and the main bearing is a double row angular contact ball bearing.
Patent GB-216339-A (GB)
Title: Improvements in or relating to pistons and piston rods of internal combustion engines
IPC: F01P3/10
Filed: 1923-05-28
Abstract: 216,339. Wallsend Slipway & Engineering Co., Ltd., and Simm, J. S. May 28, 1923. Pistons, cooling; pistonrods.-The piston of an internal-combustion engine is made of two coaxial parts 1, 2 connected together and forming a cavity between them. The bottom part 2 has a central boss 4 which is coned internally to engage a coned surface on the piston-rod, and is connected to the outer circumference of the part 2 at the top and bottom only. The part 1 has an interior flange 8 connected to the crown 7 by ribs 7<1> and is provided with an opening covered by a plate 9 through which the tube 11 for circulating the cooling-liquid passes. The piston-rod is hollow and carries a tube 10 with a surrounding annular space through which the cooling fluid is supplied and returned.
Patent GB-109851-A (GB)
Title: Improvements relating to Compressors for Ice Making or Refrigerating Machines.
IPC: F25B31/00
Filed: 1917-04-02
Abstract: 109,851. Lightfoot, K., and Lightfoot Refrigeration Co. April 2, 1917. Actuating pumps by fluid-pressure motors; actuating pumps electrically; valve-gear.-A pump for compressing ammonia or other gas for ice-making or refrigerating is directly coupled to a highspeed motor, such as a steam or petrol engine or an electric motor. The inlet and outlet valves E, F are directly operated by cams G, II on the crank-shaft D and are closed by springs R, S.