baber/WOPTO huggingface dataset:
Patent GB-387458-A (GB)
Title: Improvements relating to wringing and mangling machines
IPC: D06F45/00
Filed: 1931-12-01
Abstract: 387,458. Folding mangles and wringers. TAYLOR & WILSON, Ltd., WILSON, A., and WILSON, H., Taywil Works, Accrington. Dec. 1, 1931, No. 33241. [Class 138 (ii).] In a wringing or mangling machine which is convertible into a table by folding and in which the table is detachable from the machine, a bracket A at one end of the table B is provided with a slot C which is open at one end to receive and engage the end of a stay rod D or a stud mounted in the machine frame. Pivoted to the bracket A is a gravity catch E which is provided with an inclined surface e so that when the rod D is pressed against that surface, the catch E is displaced and allows the rod D to enter the slot C whereupon the catch returns to its closed position. The catch E may be moved to release the rod D, by the engagement with a lug e<1> of the end f of a slide F mounted on the bracket A and provided with a handle f<1>. In a modification, Fig. 2, the lug e<1> is replaced by a finger e<2> for lifting the catch, a projection a on the table A preventing the catch E from turning too far.
Patent GB-668722-A (GB)
Title: Improvements in powder distributing drums
IPC: B65D83/06
Filed: 1947-12-17
Abstract: 668,722. Powder distributers. LAIRD & SON, Ltd., J., KING, J. A., and BUCHAN, J. Aug. 31, 1948. [Dec. 17, 1947; June 24, 1948] Nos. 33324/47 and 17049/48. Class 18. A container from which powder may be ejected, through an apertured end, by manual pressure on the side walls, comprises a tubular body with ribs or indentations 3 that assist in strengthening the body so that its shape is restored after temporary deformation. The ribs or indentations are formed in a rectangular blank from which the body is made and they may be disposed as shown in Fig. 3 or may be longitudinally, diagonally or helically arranged. The ends of the body are closed by metal or cardboard discs retained in position by inwardly directed flanges, supplemented, if necessary, by an adhesively secured paper or cardboard cap,. one of the discs being apertured or having an indentation'that can be readily pierced. The tubular body may have a reinforcing lining of corrugated cardboard or cellulose acetate.
Patent GB-755971-A (GB)
Title: Improvements in electric kettles and the like
IPC: A47J27/21
Filed: 1953-12-01
Abstract: 755,971. Thermal switches. RUSSELL, W. M. Nov. 23, 1954 [Dec. 1 1953], No. 33408/53. Class 38(5) [Also in Group XI] An electric kettle, coffee percolator or like electrically heated vessel is provided with a circuit breaker which is actuated when steam generated in the vessel impinges on a heat responsive element mounted on the vessel. As shown, a bimetal strip 56 is secured at its lower end to a partition wall 53 formed integrally with a handle 12 which also houses a circuit breaker lever 58 which is urged to operating and non-operating positions by an over-centre spring 67. A steam vent 48 is formed above a baffle 45 near the top rim of the body of the kettle and in a handle cover plate 51, a further aperture 52 is formed opposite the vent 48. A safetyswitch is mounted in a terminal housing 13 and consists of a bell-crank lever 29 of electrically insulating material which is urged in an anticlockwise direction by a coiled spring 31. Normally, rotation of the lever 29 is limited by a bimetal strip 33 secured to the housing 13 and to the heating element 14. In using the kettle the switch lever 58 is pressed in and an arm 71 of the lever moves clear of a contact arm 72 thus allowing contacts 74, 75 in the circuit of the heater 14 to be engaged. Hot air and vapour rising from the water before it boils will be shielded from the vent 48 by the baffle 45 but when the water boils, steam passes through the vent and aperture 52 into contact with the bimetal strip 56 which is deformed and moves the top of the switch lever 58 outwardly of the handle to the position shown at 58<SP>1</SP>. Contacts 74, 75 are thus disengaged and current supply to the heater is broken. In the event of the circuit breaker failing or the kettle being switched on when containing no water the bimetal strip 33 bends outwardly and clears a detent 36 in the hell-crank lever 29 which moves anticlockwise to the position shown in Fig. 5, a nose 37 of the lever 29 causing a contact 21 connected to a contact pin to be disengaged from a heater element stud 22 and the current supply to be interrupted. When the bimetal strip 33 has cooled down the lever 29 is reset by turning a spindle 28 secured to the lever, clockwise. There may be two heater elements connected in parallel; the circuit breaker being connected in the circuit of only one of them. According to the Provisional Specification an auxiliary resistance may be automatically connected in circuit to reduce the heat supplied by the heater element after the water has boiled. Alternatively. the heat responsive element may cause the supply current to a single heater element to be periodically opened and closed so as to reduce the mean rate of production of heat by the heater.
Patent GB-1014162-A (GB)
Title: Improvements in or relating to circuit arrangements for the detection of telegraph signals
IPC: H04L27/08
Filed: 1962-08-31
Abstract: 1,014,162. Transistor receiving circuits. SIEMENS & HALSKE A.G. Aug. 31, 1962 [Sept. 1, 1961], No. 33465/62. Heading H3T. A detection arrangement for amplitudemodulated telegraph signals includes a bistable trigger circuit controlled by the telegraph signals and a threshold circuit by which the trigger circuit is set to a pre-determined state when the amplitude of the signals falls below a pre-determined value. A modulated carrier is applied from source E via filter EF to an amplifier V the output circuit of which comprises the primary of a transformer U2. A secondary on this feeds bridge rectifier Gr the rectified output of which is developed across resistor R1 after smoothing by a filter comprising capacitor C2 and inductor L2. The maximum positive potential at the junction of inductors L2, L3 in the presence of a signal is determined by a reference potential applied to the bridge via an adjustable tapping on resistor R1. The smoothed demodulated signal across resistor R1 is fed via a time-delay network comprising inductor L3 and capacitors C3, C4 and a resistor R2 to the base of a transistor Ts2. This is conductive in the absence of a signal and is so coupled to the base of transistor Ts3 in cross-coupled pair Ts3, Ts4 as to render transistor Ts3 non-conductive and Ts4 conductive. Keying circuit TS is then in the spacing current state T. A signal causes Ts2 to become non- conductive, whereby Ts3 becomes conductive, Ts4 non-conductive and the keying circuit Ts reverses state. To prevent operation of the circuit at low signal levels, when the distortion is high, a voltage is fed from a tertiary winding W3 on the transformer U2 to a full-wave rectifier comprising a pair of silicon diodes SD1, SD2 and smoothing capacitor C1. The voltage across this capacitor is fed to the base of an auxiliary transistor Ts1 the emittercollector path of which is in parallel with that of the transistor Ts2. Transistor Ts1 is conductive in the absence of signals and so holds transistor Ts3 non-conductive, Ts4 conductive and the keying circuit Ts in the spacing current state. It is only when a sufficiently large signal is received to overcome the threshold of the silicon diodes SD1, SD2 that transistor Ts1 is biased non-conductive and the normal functioning of the detector circuit Ts2, Ts3, Ts4 can take effect. Capacitor C1 discharges with a long time-constant, through the base-emitter path of transistor Ts1 so that the transistor does not become conductive for the duration of signals of adequate strength. A modification (Fig. 2, not shown) differs principally in that the full-wave silicon rectifier circuit is replaced by one of half-wave type.
Patent GB-1436789-A (GB)
Title: Method of surface hardening a metal workpiece
IPC: B23K9/04
Filed: 1973-07-13
Abstract: 1436789 Surface hardening by arcs I J ROCKLIN 13 July 1973 [13 July 1972] 33541/73 Heading B3V [Also in Division C7] In a method of hardening the surface of a metal workpiece 98 by arc discharges between the workpiece 98 and a metal electrode 32, the latter is reciprocated and connected to a circuit for producing the discharges comprising an A.C. source connected to a transformer 74, 76, a full wave rectifier 78 connected to the transformer 74, 76 to produce a D.C. current, a resistance 84 and a capacitance device 88-94 connected on one side to the workpiece 98 and on the other side to the electrode 32. The electrode 32 may be of non-consumable tungsten carbide or may be of titanium carbide which may be consumed so that a small deposit of titanium carbide is formed on the surface of the workpiece, e.g. a tungsten carbide tool. The electrode 32 is mounted in a chuck 30 connected to an armature of a solenoid 36 which is supplied with current from the A.C. source to cause rapid reciprocation of the electrode 32 via a switch 14 and terminals 108, 110. Capacitors 88-94 are connected to the electrode 32 via a terminal 102, a conductor 104 and a screw 44 engaging the solenoid armature. As the electrode 32 is vibrated out of and into contact with the workpiece 98, the capacitors 88-94 are periodically charged and discharged by arcing to cause melting of the workpiece surface. The workpiece is illuminated by bulbs 24, 26. In another embodiment (Fig. 5, not shown) the circuit includes capacitors (142-156) which may be selectively brought into circuit by a switch (158).
Patent GB-204245-A (GB)
Title: Improvements in looper mechanism for sewing machines
IPC: D05B57/02
Filed: 1922-12-08
Abstract: 204,245. Thompson, W. P., (Union Special Machine Co.). Dec. 8, 1022. Multiple-needle machines; chain stitching.-In a machine in which a looper-supporting shaft is given endwise needle avoiding movement in addition to loop-taking movements by a single lever connected between its ends to a fulcrum arm the point of connection of the arm to the lever is made adjustable so as to vary the extent of movement of the looper. The looper shaft 23 carrying two loopers 25 co-operating with needles 4, 5 is mounted in a horizontal work-arm 3 extending from a vertical frame-member 2. A ball 33 carried by an arm 32 projecting from the shaft is engaged by a bracket 35 on a lever 34 connected at its other end to a ball 40 on a crank mounted on a shaft 18. A sleeve-member 43 on the shaft is pivoted to an arm 51 mounted to slide and turn in a sleeve 53 secured to a stud 54 pivoted in the frame. A screw 45 having a collar engaging a fork in the bracket 35 is threaded into the sleeve 43 to provide a positive adjustment therefor on the shaft whereon it is clamped by a screw 49. Feed by dogs.-The looper mechanism is associated with a work-feeding mechanism comprising a feed-bar 11 having a sliding pivot 19 at its rear and given a work-feeding movement by an eccentric rod 23, lever 21 and adjustable link 20, and a vertical movement by an eccentric 16, lever 14 and a link 13.
Patent GB-424912-A (GB)
Title: Improvements in and relating to thermionic cathodes
IPC: H01J1/22
Filed: 1933-11-30
Abstract: 424,912. Thermionic cathodes. FERRANTI, Ltd., and EASTON, G. P., Hollinwood, Lancashire. Nov. 30, 1933, No. 33583. [Class 39 (i)] In an indirectly-heated cathode of circular crosssection, the heater comprises a plurality of separately insulated conductor wire lengths f which are held against the inner wall of the cathode a by suitable means leaving the inner space substantially unoccupied. The means may be a helix c or a thinwalled, optionally perforated, tube of nickel &c. Alternatively, plugs or cones may be inserted at each end of the cathode. The helix may be connected to the cathode at d or may act as a return lead for the heating current. If the cathode is closed at the top the helix c may be suspended therefrom. The heater wire may be formed into a fine helix before use.
Patent GB-632668-A (GB)
Title: Improved method of and apparatus for plasticising margarine and like plastic substances
IPC: A01J17/00
Filed: 1946-11-12
Abstract: 632,668. Extruding margarine &c. DOUGLAS & SONS, Ltd., W., and NICOL, J. S. Nov. 12, 1946, No. 33612. [Class 87 (ii)] [Also in Group I] Margarine &c. is plasticized by subjecting it after it has been extruded, to a mechanical action for dividing it into film-like particles, then compressing the margarine to coagulate it, the pressure being derived from the resistance to displacement of the margarine. From the extrusion head the margarine passes into a converging guide passage 1, through a set of rotating helical blades 12, which divide it, and into a shaping guide 3 where the margarine is coagulated and again extruded. The blades 12 are mounted on a shaft 9 journalled into detachable wall elements 4.
Patent GB-1491659-A (GB)
Title: Machine for drawing textile fibres
IPC: D01H5/26
Filed: 1976-08-13
Abstract: 1491659 Drawing machine with interchangeable heads N SCHLUMBERGER & CIE 13 Aug 1976 [12 Sept 1975] 33724/76 Heading D1N A fibre drawing machine comprises a plurality of different upper and lower drawing heads 4 and 3 any pair of which can be located between feed rollers A and drawing rollers B, the heads being detachably mounted by identical support members thereon which engage complementary members on the frame 1, and the heads also having drive members which engagÚ each other and the lower head drive members engaging a drive member on the frame. This arrangement allows the heads to be exchanged to suit the fibre being processed. Heads are described having aprons, lips 42, spiked aprons or rollers. The interengaging drive members are toothed wheels 25, 17 and 18. The heads are retained by spring loaded hooks 31.
Patent GB-843147-A (GB)
Title: A device for erasing signals recorded on a magnetic record medium
IPC: G11B5/325
Filed: 1957-10-29
Abstract: 843,147. Magnetic erasing heads. SOUTHERN INSTRUMENTS Ltd., and BROOKESSMITH, C. H. W. Oct. 29, 1957, No. 33780/57. Class 40 (2). A permanent magnet erasing device for a magnetic record comprises a hollow cylindrical magnet 2 secured to a pulley 12 and free to rotate on a fixed spindle 8. Around the pulley 12 passes a cord, one end of which is fixed to a spring 7 anchored at 9 and the other end of which is connected to a second pulley 10, fitted with a control knob 15 (not shown-see Fig. 4) and also free to rotate on a fixed spindle. In Fig. 2 the magnet is shown in the operative position in which erasure of signals on a tape occurs as it passes through the external magnetic field at the non-magnetic gap spacer. In this position the spring 7 is stressed and returns the magnet through 180 degrees to its rext position when the control knob is released. In a modification the control knob is attached directly to the magnet or mechanically linked to it. In a second modification a spiral spring is employed attached directly to the magnet and anchored to the machine. In a third modification the magnet is brought to the operative position by means of an electromagnet.
Patent GB-458707-A (GB)
Title: An improved dressing for the belting of machinery or like
IPC: C08L7/00
Filed: 1935-12-05
Abstract: 458,707. Adhesion compositions. DYKE, H. V., 635, Dominion Road, Auckland, New Zealand. Dec. 5, 1935, No. 33791. Convention date, July 12. [Class 80 (i)] A process for producing a fluid dressing for machinery belts comprises treating ground leather with an aqueous solution of ammonia or like pulping agent, after which a further quantity of ground leather is added, rubber being added before, during or after the treatment with ammonia. In an example, 18 lbs. of ground leather of 30-50 sieve fineness (British Standard), 52 Ibs. of latex paste (75 per cent), 6 lbs. of commercial ammonia of sp. gr. 0.880, 18 lbs. of distilled water, 4 lbs. of latex (25 per cent) and 2 lbs. of casein in crude acid form are mixed as follows. In a first container, 2 lbs. of the distilled water are heated to about 100‹ F., the casein and 1 lb. of the ammonia are added thereto and the whole is allowed to cool. In a second container, the raw rubber is mixed with 5 lbs. of the water. In a third container, the remaining water is mixed with the remaining ammonia. The contents of the first and third containers are mixed and added to the second container. 12 lbs. of the leather is stirred into this, and is partly pulped by the ammonia, this action being immediately stopped by adding the latex. The remaining leather is then added and is not attacked. The material is painted on the belt, and may be smoothed with a knife, and is allowed to dry. Drying may be hastened by heating to a temperature not exceeding 120‹ F.
Patent GB-374376-A (GB)
Title: A new or improved device for measuring heights
IPC: G01C5/00
Filed: 1931-12-07
Abstract: 374,376. Sighting clinometers. BROUN, C. W. W., Lanrick House, Rugeley, Staffordshire. Dec. 7, 1931, No. 33844. [Class 97 (ii).] A device for ascertaining heights of objects comprises a pendulum 3, the upper edge 4 of which coincides with the hypotenuse of a member 1, shaped as a right-angled triangle, when the latter is in an upright position. The top of the object is sighted along the hypotenuse A-B, which is preferably formed with a cut-out portion 2. The member 1 is attached to a tube 5 which may be used as a handle or for mounting the device on a tripod.
Patent GB-1087586-A (GB)
Title: Method of activating a composited catalyst, the catalyst and method using same
IPC: B01J27/13
Filed: 1965-08-09
Abstract: Catalysts comprising a major proportion of alumina and a minor proportion of a metal from Gps VI B or VIII B of the Periodic Table e.g. platinum, palladium, rhodium, nickel or tungsten are treated with hydrogen chloride, which may be produced in situ, at 510 DEG  to 677 DEG C and then treated with a sulphur chloride under non-reducing conditions at elevated temperatures so that a substantial increase in the chlorine content of the catalyst results.  The sulphur chloride is Sn Oa Clb Yc where Y is halogen other than chlorine, n is 1 or 2, a is 0, 1, 2, 3 or 5, b is 2, 4, or 7 c is 0 or 1 and b plus c is 2 to 8.  Exemplified are Pt-Al2O3, catalysts activated with thionyl and sulphuryl chlorides and mono and di sulphur chlorides.  The alumina bases are exemplified and may include silica, beryllia titania, zirconia, or boria.
Patent GB-1180536-A (GB)
Title: A method of forming, and an assembly comprising a Lip Seal between Relatively Movable Parts
IPC: F41H7/03
Filed: 1968-07-17
Abstract: 1,180,536. Embrasive joints. CRANE PACKING Ltd. 17 July, 1968 [21 July, 1967], No. 33962/68. Heading F3C. An opening 21, for example, in an armoured chamber 20, is closed by a slidable member, for example, a weapon carrying shield 23. A continuous sealing lip 24 attached to the periphery of the opening 21 co-operates with preferably a sheet 25 attached to the member and comprises a relatively narrow sealing portion lying transverse to the direction of movement of the member and a relatively broad portion lying in the direction of movement of the member. These relative dimensions together with transitional portions allows the contacted surface to wear evenly. The sealing lip 24 may be of molybdenum disulphide impregnated polyurethane and the sheet 25 of molybdenum impregnated PTFE. The lip is urged into engagement with the sheet by fingers of a spring 29 and the sealing lip 24, spring 29 and a guard 36 of heavy gauge metal are secured to a flange 34, in turn secured about the opening, by screws 37.
Patent GB-1062710-A (GB)
Title: Improvements in periscopes
IPC: G02B23/08
Filed: 1954-11-23
Abstract: 1,062,710. Periscopes. B. E. A. M. CUNY. Nov.23, 1954 [Nov.27, 1953], No.33993/54. Heading G2J. A periscope comprising a bottom telescope and a top telescope mounted in the tube of the periscope is characterized in that there is mounted in the tube between the two telescopes at least one inverting afocal system carried by the tube of the periscope in such a position that, under the effect of deformations of the tube due to vibration, the inclination of the optical axis of the afocal system produces an image displacement which compensates for the image displacement due to the relative inclinations of the telescopes. Referring to Fig. 2 the afocal system S is mounted between the bottom telescope L and the top telescope L', and under transverse vibration of the periscope tube the systems S and L' make angles u and i with the axis of the telescope L. It is shown that images remain stationary when the tube vibrates transversely if u (1 + 1/g) = i where g is the magnifying power of the afocal system 2 S. Thus if g = 1, u=i/2 This arrangement also provides partial compensation for longitudinal vibration, but for complete compensation the equation u (1 +1/g ) = i (1 ŒG') must be satisfied, where G' is the magnifying power of the telescope L'. It is possible to satisfy both conditions simultaneously by anamorphosing the system S and introducing a compensating anamorphosis into the system L' as shown in Figs. 9 and 10 where plano-cylindrical lenses (shown crosshatched) are introduced adjacent all the lenses of systems L' and S. Alternatively a compromise may be adopted which reduces but does not eliminate the effect of vibrations in either direction; the condition for this is that u (1 + 1/g ) = i (1 ŒG'/2). If two afocal systems S and S' are used Fig. 5 (not shown) having magnifying powers g and g', and making angles u and u' with the axis, the term u (1 + 1/g) in the equations above should be replaced by u (1 +1/g) + [uu(1 +1/g)] (1+1/g,) Where a single afocal system is used it is necessary to provide inverting means at the eyepiece, e. g. by using a pentagonal prism instead of a triangular prism, to compensate for the inversion produced by the afocal system. The lenses of a single afocal system may be placed in contact with the lenses of telescopes L, L' Fig. 7 (not shown) to form in effect a pair of double lenses which may be replaced by a pair of single lenses each having a power equal to the sum of the power of the two lenses it replaces Fig. 8 (not shown).
Patent GB-811324-A (GB)
Title: Cleansing composition
IPC: C11D1/22
Filed: 1955-11-28
Abstract: A granular cleansing composition, suitable for sprinkling into lavatory basins, comprises 1 part of sodium bisulphate by weight and 1/3 -1 part of a compatible solid synthetic detergent, preferably sodium dodecylbenzene sulphonate.  If desired, a small quantity of fine oil may also be incorporated.  Specification 307,141, [Class 91], is referred to.