baber/WOPTO huggingface dataset:
Patent GB-1474548-A (GB)
Title: Electroplating rhodium-ruthenium alloys
IPC: C25D3/56
Filed: 1974-06-20
Abstract: 1474548 Electro-plating Rh-Ru alloy OXY METAL INDUSTRIES CORP 20 June 1974 [21 June 1973] 27435/74 Heading C7B Rh-Ru alloy containing e.g. 90% or more of Rh is electro-plated from a Pt-free bath containing Rh and Ru in a ratio by wt. from 5:1 to 1500:1. An acid bath may be used, > 10 g/l sulphonic acid, containing buffers, complexants and conducting substances, e.g. H 2  SO 4 . The Rh source may be sulphate, suphamate or phosphate and the Ru source sulphate, trichloride, hydrochloroperrutheneous acid or an alkali metal Á-nitrido-bis- (tetrachloroaquaruthenate (IV)) e.g. K 3 N(RuCl 4 .H 2 O) 2 . A substrate of brass, bronze, Cu, Ag, mild steel or Ni (alloy) may be flashed with Ag, Au, Pd or Pd-Au before plating.
Patent GB-233255-A (GB)
Title: Improvements in or relating to yarn dyeing tanks
IPC: D06B3/08
Filed: 1924-11-17
Abstract: 233,255. Jackson, W. J. Mellersh-, (Fuld & Hatch Knitting Co.). Nov. 17, 1924. Coating materials in long lengths.-Rollers are mounted on a shaft carried by a removable cover so as to lie easily accessible for cleaning. The shaft 16 is journalled in bearings 18 screwed to a flanged cover 12 and may carry a number of rollers 15 which project through slots in the cover. A yarn-tossing finger is mounted on a rock-shaft 30. Guide pins 27 are provided so that, prior to the removal of the cover, the yarn may be lifted over them and held clear of the rollers. Dye is supplied continuously by a pipe 35 and kept at a constant depth in the tank by a regulable overflow pipe 36.
Patent GB-854886-A (GB)
Title: Improvements in or relating to vehicle rear viewing mirrors
IPC: B60R1/076
Filed: 1955-11-25
Abstract: 854,886. Rear-viewing mirrors. O'SHEI, W. E. Nov. 26, 1956 [Nov. 25, 1955], No. 27585/60. Divided out of 854,884 Class 103(2). [Also in Group XXV] A vehicle rear-viewing mirror comprises a mirror element carried from a stanchion 2, Fig. 1, by an adjustable connection 3 lockable by a nut 3a to hold the mirror element in a predetermined position relative to the stanchion 2 and a rotatable joint formed by the stanchion 2 and a base member 34 secured to a vehicle body 5 by a nut 6 and washer 7, the joint allowing the mirror to turn about the axis of the joint when it is struck and includes a spring(s) or other resilient means which return or tends to return the mirror towards its normal position when the force displacing the mirror is removed. The stanchion 2 has a square-sectioned projection 32b, Fig. 2, which enters a cavity 34a in the base member and which is engaged by bars 39, each of which is pivoted at one end by a pin 39a to the bottom of the cavity and which is connected at the other end to the other bar by coil springs 39b. The stanchion and the base member are urged into abutting relationship by a spring 38 surrounding a stem 32c of the stanchion which is compressed by a nut 40 threaded on the stem between the underside of the base member and the nut. In a modification, Fig. 3, (not shown) leaf springs are secured at one end to the base member and engage opposite surfaces of the square-sectioned projection instead of the spring urged bars 39. In another embodiment, a rubber bush 68, Fig. 4, is bonded to an inner ring and an outer metal sleeve 68b, the inner ring being non-rotatably connected to a projection 62a of the stanchion 62 and the outer sleeve non-rotatably being connected to the base member 64 so that the bush resists torsion applied to the stanchion. In a further embodiment, the stanchion 72, Fig. 5, is universally connected to a member 73 and a stem 72b through a spring 79, the stanchion having a tapered square-sectioned end 72a engaging a corresponding recess in the member 73. The member 73 has a projection 73a, Fig. 6, which extends into a cavity 74a in the base member 74 and which is normally aligned with a projection 74c in the cavity. The projection 73a is disposed within the ends 78a of coil springs 78 carried by pivots 81 in the cavity, the other ends of the springs engaging further projections 74d on the base 74 within the cavity. Specifications 746,370, 775,594 and 848,073 also are referred to.
Patent GB-890306-A (GB)
Title: An improved water evaporating unit for dispersing de-frost water from a refrigerator
Inventor: THOMPSON STANLEY HOWARD ADCOCK
IPC: F25D21/14
Filed: 1959-08-13
Abstract: <PICT:0890306/III/1> A de-frost water evaporating unit comprises a tank 1 with an inlet pipe 2 which admits water into the tank.  A pipe 8 leads water from the tank into the lower end of a boiling tube 7 which is wound helically about an electric heater 5 and has its upper part projecting into a cylindrical chimney 10 having baffle plates 14. The heater 5 is surrounded by a concentric tubular body 6 which is mounted at its lower end on the top of a liquid-tight chamber 3 having vents 4 to the atmosphere so that air rises into the chimney to evaporate water droplets from tube 7.  In operation the heater is energized by switch means 16 at a predetermined level of water, boiling occurs in the lower part of the tube 7 and steam and water droplets are carried up the tube into the chimney 10 to strike the inverted cap 13.  Steam escapes through the perforations 17 in the chimney cap 12 and water falls on to the upper-most of the baffle plates 14 from whence it is guided by a wire helix 15 down the wall of the chimney where it is met and further evaporated by a current of convected air from the vents 4 which is heated by passage through the tubular body 6.
Patent GB-912217-A (GB)
Title: Improvements in or relating to couplers for connecting trailers to towing vehicles
IPC: B60D1/06
Filed: 1960-08-10
Abstract: 912,217. Ball and socket vehicle couplings. HENRY, H. P. June 5, 1961 [Aug. 10, 1960], No. 27727/60. Class 103(5). A ball and socket vehicle coupling comprises a ball retaining sliding bolt 16 which may be held in a disengaged position, Fig. 6, by toggle links 25, which links are pivoted to cheeks 17 on pivoted handles 19 operating the bolt 16 through a second set of toggle links 17, 21, and to a spring pressed tappet 22, Fig. 2, the toggles 25 being released by insertion of the ball into the socket which raises the tappet to break the toggles and assists the movement of the handles 19 down to the Fig. 4 position. The ball is now held in the socket by the bolt 16 which has been moved downwardly by the toggles 17, 21, the links 21 being biased by a spring 26 and pivoted to the bolt 16.
Patent GB-1463719-A (GB)
Title: Metal cleaning composition
IPC: C11D3/00
Filed: 1974-06-22
Abstract: 1463719 Metal cleaning compositions RECKITT & COLMAN PRODUCTS Ltd 23 May 1975 [22 June 1974] 27806/74 Heading C5D A composition for cleaning metal surfaces, especially copper and brass surfaces, comprises (A) a soap which is a salt or a fatty acid and a weak base, (B) an abrasive material, (C) a thiosulphate, dithionite or phosphite salt and (D) water. (A) may be an amine or ammonia soap of e.g. a tallow fatty acid, the content of fatty acid preferably being 0À3 to 6% by wt. and the content of ammonia preferably being 0À2 to 4% by wt. of 0À880 sp. gravity aqueous ammonia. (B) may be alumina, siliceous earth, or a mixture thereof in quantities of 10 to 25% by wt. and of 1 to 20 microns particle size. (C) may be an alkali metal, alkaline earth metal, ammonium or substituted ammonium salt. Optional ingredients include (E) suspending agents such as thixotropic synthetic clay, thixotropic silica, bentonite or mixtures thereof, (F) up to 10% organic solvent e.g. ethanol, isopropanol, kerosene and white spirit; and (G) pigments.
Patent GB-786628-A (GB)
Title: Improved motor-compressor assembly for refrigerators
IPC: F25B31/02
Filed: 1956-09-12
Abstract: 786,628. Compressors. GENERAL MOTORS CORPORATION. Sept. 12, 1956 [Dec. 5, 1955], No. 27864/56. Class 8(1). A motor-compressor assembly for a refrigerator comprises a motor-compressor unit 12 mounted on springs 26 in the casing 10 in the normal way. Additional blade springs 30, attached to the lugs 28, have enlarged end portions 34 arranged to produce an effective frictional engagement between the casing 10 and motor-compressor unit 12, for snubbing the torque reaction between the casing and the unit during starting and stopping of the motor.
Patent GB-264615-A (GB)
Title: Improvements in sight exercisers
IPC: A61H5/00
Filed: 1926-04-23
Abstract: 264,615. Smith, K. R. April 23, 1926. Eye appliances.-Apparatus for developing and training binocular vision comprises an eyepiece with screens so placed that the central portion of the field of vision is seen by both eyes whilst the lateral portions are seen by one eye only. The apparatus may be used with any ordinary visual objects such as picture books, drawings on a blackboard &c. Fig. IV shows a construction in which the inner portion of the field of vision of each eye is limited by means of a longitudinal screen A A so that the fields of vision of the two eyes overlap only to a limited extent. A transverse screen of less width than the distance between the pupils may replace the screen A A. Fig. VII shows a modification in which the outer portion of the field of vision of each eye is limited screens B B. In a further modification opaque screens E are placed laterally or centrally on spectcles or in spectacle frames. The screens may be adjustable. When used with a book-rest C the eyepiece may be attached to a rod G sliding in a socket D hinged to the book-rest so as to permit vertical and longitudinal adjustment but to prevent lateral movement. Specification 241,387 is referred to.
Patent GB-1464369-A (GB)
Title: Hydraulic systems
IPC: F16L55/02
Filed: 1973-06-12
Abstract: 1464369 Centrifugal pumps ROLLS-ROYCE (1971) Ltd 28 May 1974 [12 June 1973] 27957/73 Heading F1C In a pumping system, the bore 10 of valve sleeve 13 directs fuel via valve port 12 to the inlet 16A of a vapour core pump 16, the outlet 17 of which leads to the re-heat burners of a gas turbine engine. The pump inlet 16A is connected via annular orifice 21 with a compartment 20 and via further orifices 23, 25 with compartments 22, 24. The size of valve port 12 can be varied by supplying fuel as the control fluid via pipe 28 or 29 to one or other side of piston 26 on valve sleeve 13 so as to move the latter relative to seat 38. When sleeve 13 is moved left-wards to increase fuel flow, the discontinuity in the pump, i.e. the vapour core, is initially taken up and pressure build-up in the system resulting from the formation of shock waves is reduced by energy dissipation during the filling of compartments 20, 23, 24. In a modification Fig. 3 (not shown) the compartments (42, 44, 46) are all annular and concentrically disposed in the pump drive-shaft 19.
Patent GB-921168-A (GB)
Title: Regenerative heat exchanger
IPC: F28D19/04
Filed: 1960-07-12
Abstract: 921,168. Thermal regenerators. G. SCHOLL. Aug. 12, 1960 [Sept. 9, 1959], No. 28044/60. Class 64 (1). In a thermal regenerator having a rotating matrix, the heat exchanging fluids (e.g. air and flue gases) flow in contraflow and in peripheral paths 23, 24 through heat transfer material subdivided into sectors by valve elements 13 which are opened to provide for fluid flow in the paths 23, 24 and are closed (as indicated at 13<SP>1</SP> and 1311) during the time that an individual sector is passing from the flow path 23 to the flow path 24 and vice versa. The valve elements 13 may be shut-off valves, slide valves or (as shown) pivoted flaps or shutters. Automatic operation of the valves in conjunction with the movement of the rotor may be effected by cams, rods or tappets actuated by counterweights or by hydraulic means. The rotor shown is mounted on rollers 9 which may be used as driving means or the rotor may be mounted on and driven by a central shaft 12. The possibility of driving the rotor either solely or in part by the differential fluid pressures acting on the valve elements when in their closed positions 13<SP>1</SP> and 13<SP>11</SP> is also mentioned. The heat transfer material preferably consists of spaced flat plates 16, separated by intermediate spacing means or by projections integral with the plates, wire coils 15 or corrugated plates 17 arranged with the corrugations of one plate extending at right angles to the corrugations of adjacent plates and is heat insulated by material 4 from the rotor structure and from a stationary casing 3 in which the rotor is mounted and which has the usual inlets and outlets 5, 6, 7, 8 for the heat exchanging fluids. Spring-actuated seals comprising segmental rings or asbestos cords are provided between the casing and rotor (Fig. 2, not shown). A further form is described in which the heat exchanging fluids enter and leave the rotor axially.
Patent GB-1125213-A (GB)
Title: Brush-type moistening mechanism for a lithographic printing press
IPC: B41F7/28
Filed: 1967-06-19
Abstract: 1,125,213. Dampening apparatus for lithographic press. MIEHLE - GOSS - DEXTER Inc. 19 June, 1967 [24 June, 1966], No. 28096/67. Heading B6C. A dampening system for a lithographic printing press comprises a fountain roller carrying a brush, a deflector blade assembly having a plurality of deflector blades arranged side-byside to progressively bend the bristles of the brush and flick water droplets from the tips of the bristles to a drum arranged closely adjacent in the path of the droplets, and means for individually adjusting the position of the blades and their penetration of the brush. Figs. 1 and 3 illustrate a press wherein a lithographic plate 11 carried on plate cylinder 12 is dampened by water-forme roller 35 in contact with a drum 31 having a hydrophilic surface; water is taken from a pan assembly 25, in which the constant level of water 26 is maintained by input 27 and overflow 28, by means of fountain roller 15 carrying a brush 16 whose bristles are deflected by blade assembly 30, thus flicking water on to the surface of drum 31. The bristles of the brush are preferably formed of resilient fibres which are sufficiently stiff as to eject water particles on straightening out; they are arranged on the roller in a narrow helical row, the pitch of the resulting helical brush being less than the width of the narrowest blade in the assembly 30. The assembly is made up of a plurality of blade sections 41 mounted on a common shaft 42; each deflector section 41 carries a blade (45) secured to a yoke (46) which in turn has an associated reference member (50) secured to the shaft 42 with an adjusting screw (53) interposed between the yoke and the member (50), thus adjusting the angle of the blade with respect to the bristles (Fig. 4, not shown). In operative position, the blade is generally tangential to the tips of the bristles; the deflector blades can be rocked collectively to a retracted position away from the bristles by means of arm 80 attached to shaft 42; this manually operated arm halts the damping progress by stopping transfer of water from roller 15 via brush 16 to drum 31 without altering the alignment of the blades (45) with respect to each other. Any droplets of water which escape from between bristles 16 and drum 31 are collected in an extension piece 75 of the fountain pan 25.
Patent GB-1108884-A (GB)
Title: Proximity detector circuitry for elevator closures
Inventor: DIAMOND LEWIS HENRY
IPC: B66B13/26
Filed: 1965-07-05
Abstract: 1,108,884. Proximity detectors. OTIS ELEVATOR CO. July 5, 1965, No. 28354 /65. Heading G1N. A proximity detector, used for example to control the doors of a lift according to the presence of passengers in the doorway, comprises: two pairs of antennae UA1, UA2, and UB1, UB2, the capacitance to earth of each pair constituting two arms of a respective capacitive bridge circuit, the unbalance of each bridge being amplified by a respective three-transistor amplifier AMA, AMB, and an output from one or both amplifiers causing a common switching circuit, FF, to prevent door closure. A transistorized square wave generator OSC, energizes the bridges via conductor BO, the energizing circuit being completed by the capacity to earth of the antennae. The measuring diagonals of the bridges, each of which includes in its other pair of arms capacitors C and zero setting capacitors C1 and C2, are transformer coupled, TRBA, TRBB, to the amplifier input transistors TA1, TB1, the secondaries being shorted out by switches KSA, KSB for zero setting of the bridges. The amplifier outputs are fed to voltage rectifying and doubling circuits VDA, VDB; and the switching circuit FF, to which the resultant D. C. signals are fed, consists of a transistor monostable multi-vibrator.
Patent GB-858243-A (GB)
Title: Improvements in or relating to amplitude-compression systems
IPC: H03G7/00
Filed: 1957-09-09
Abstract: 858,243. Volume compression systems. SIEMENS & HALSKE A.G. Sept. 9, 1957 [Sept. 7, 1956], No. 28429/57. Class 40 (4). In a volume compression system the signal is fed to a plurality of storage systems with different attenuation, the outputs of the storage systems being mixed in proportions determined by the amplitude of the signal. As shown, the signal received at E is recorded on separate tracks of a single tape by recording heads AI, AII, the latter with attenuation introduced by a network D. Pick-up beads EI, EII repeat the signals after a prescribed time interval to the mixer U which is controlled by the rectified input signal which determines the proportion of each signal to be fed to the output terminal A. The mixer may comprise two amplifiers whose gains are controlled in opposite ways by the same control signal andwhose outputs are combined by means of a hybrid transformer. Alternatively, if the output impedances of the amplifiers are low compared with the load impedance their outputs may be connected in series. Preferably it is arranged that maximum values of the input signal overload the tape receiving the unattenuated signal and that for minimum values of the input signal the signal/noise ratio for the attenuated signal is less than 1, the responses of the amplifiers to the control signal being such that the amplifiers in the unattenuated and attenuated channels are muted at the high and low levels respectively. Preferably the amplifiers are such as to give the same phase relationship between input and output and at least one of the recording heads is adjustable so as to make phase synchronization possible. However, phase differences may be deliberately introduced to produce special effects such as reverberation. The control voltage may be derived from one or more of the storage devices, and special effects may be obtained by staggering the pick-ups which derive the signals from the stores. Other channels may also be used for introducing other effects. A manual control may also be incorporated.
Patent GB-748100-A (GB)
Title: Improvements in power presses
Inventor: CHALLEN HENRY DENIS
IPC: B21D28/32
Filed: 1953-10-15
Abstract: 748,100. Forging. TAYLOR & CHALLEN, Ltd. Nov. 1, 1954 [Oct. 15, 1953], No. 28444/53. Class 83 (4). A power press adapted to form an inclined hole in a stamping or forging s, has a punch d or like tool inclined to the axis of the main slide or ram a of the press and carried by a holder c on a cross-slide b which is mounted for transverse movement on the main slide a, and surfaces on the cross-slide, inclined to the axis of the main slide at the same angle as the punch, co-operate with complementary fixed surfaces g, h, inclined at the same angle, whereby as the main slide moves on its working stroke, the cross-slide is moved transversely on the main slide and the combination of the movement of the main slide and cross-slide produces a truly axial movement of the punch at the required angle of inclination to the axis of the main slide. The cross-slide b is mounted in Vee guides on the bottom of the main slide and its inclined surfaces co-operate with complementary surfaces on dogs g, h, which are fixed to the press bolster. On the up-stroke of the main slide the dogs return the cross-slide to its initial position, and this return movement is assisted by a roller mounted on a laterally projecting lug of the cross-slide and adapted to engage an inclined surface l on the press frame. The workpiece, which is clamped in dies, may be acted upon simultaneously by a tool carried by the main slide and by other tools actuated from the main slide and entering the dies from one or each side and/or from a direction opposite to that of the main slide. The press may be used in particular for the hot stamping or forging of water tap bodies in which the axis of the outlet is inclined to the axis of the tap spindle, or for making a Tee union body.
Patent GB-1442113-A (GB)
Title: Web stretching apparatus
IPC: B29C55/16
Filed: 1973-06-13
Abstract: 1442113 Tentering apparatus BAKELITE XYLONITE Ltd 13 June 1973 28556/74 Divided out of 1374574 Heading B5B The disclosure is similar to that of Specification 1,374,574 but in addition preferred values of the angles between the wheels of the carriages are given; and the use of extra stabilizer wheels on the carriages, a cam to initiate chain folding, a bank of folded links located along the return run of the endless chain, and adjustment of the length of the guiding means telescopically or by removable sections are disclosed.
Patent GB-1434705-A (GB)
Title: Target throwing apparatus
IPC: F41J9/24
Filed: 1974-06-27
Abstract: 1434705 Target throwing apparatus J-M LAPORTE and J-C LAPORTE 27 June 1974 [17 July 1973] 28578/74 Heading A6D An apparatus for spring-powered launching of targets such as clay pigeons has a freelyrotating throwing arm 13 that is secured to one of a shaft 12 in a bearing 11 and which is automatically cooked after each firing by an electric motor 6 which also initiates firing, control circuits being provided to power the motor until the arm becomes cocked and again when firing is reguired. The shaft 12 has a crank 19 at one end, the crank pin 20 being connected to a spring 24 whose tension is adjustable. The motor 6 has a reduction gear (7) whose output shaft 8 is coaxial with shaft 12 and which carries a crank 9 whose pin 10 has the same radius as the pin 20 and links the motor to shaft 12 when engaging pin 20. Power is supplied to the motor in response to a solenoid 52 which may be activated by either of two circuits, the first including a switch 32 that is normally closed to power the motor, but which is opened by a projection 31 on the crank 19 when the arm reaches the cocked position, the second including a push-button 56 that is normally open and which is used to activate the motor to initiate firing; each circuit also includes a cut-out switch 57 and 55. The cooked position of the arm is that just before the spring 24 produces maximum tension, its line of action being close to the axis of the shafts 8 and 12 on that side in which the spring pulls crank pin 20 against pin 10. In this position the arm remains held against the motor mechanism until firing when further rotation of the motor moves the line of action beyond the axis of the shafts and allows the spring to rotate the freely-pivoted arm. This firing action allows switch 32 to close so that the motor continues to rotate until the arm is once more moved to the cooked position. Automatic feeding of the targets from a distributor 38 is linked to the rotation of crank 9.
Patent GB-233376-A (GB)
Title: Improvements in and relating to the valve mechanism of internal combustion engines
IPC: F01L9/00
Filed: 1923-11-14
Abstract: 233,376. Redrup, C. B. Nov. 14, 1923. Regulating.-In an engine provided behind the exhaust valve 3 with an air-inlet valve 16 through which air is drawn in when the exhaust valve is kept open during a part of the suction stroke, the duration of opening of the exhaust valve is varied by means of an axially slidable cam 8<a> engaging an auxiliary tappet 9<a>. The cam 8<a> may be connected to the carburettor throttle.