baber/WOPTO huggingface dataset:
Patent GB-1492385-A (GB)
Title: Surge voltage protection devices
IPC: H02H9/06
Filed: 1974-11-06
Abstract: 1492385 Protective devices SIEMENS AG 6 Nov 1974 [6 Nov 1973] 26884/74 Heading H2H A two terminal surge voltage protection device comprises a gas-filled surge voltage arrester and a voltage dependent resistor forming respective arms that are connected in parallel between two terminals wherein the gasfilled surge arrester is of the type in which two frusto-conical electrodes are inserted into respective ends of an insulating body so that their flat ends portions face each other and that they seal their respective ends, and wherein the voltage dependent resistor is a metal oxide varistor.
Patent GB-261725-A (GB)
Title: Improvements in or relating to petrol-taps
IPC: F16K7/16
Filed: 1926-10-27
Abstract: 261,725. Masson, P. Nov. 17, 1925, [Convention date]. Diaphragm and lift valves; actuating-mechanism.-A petrol tap has an elastic diaphragm valve member 10, Fig. 1, normally held to close the outlet aperture 12 by a spring-pressed piston 14, which is actuated directly or from a distance by rods or by a flexible cable. A filter 4 is fitted in an annular chamber 3 surrounding the outlet 12, the chamber 3 having a draining channel 5. The latter is normally closed by a washer 6 held by a screwed cap 7, but if the cap is partially unscrewed drainage takes place through a channel 8 in the cap 7. The draining device may form a petrol outlet. In a modification, the piston 14, Figs. 2 and 3, has a coarse thread, and is actuated by rotation through a spring-pressed lever 16 by a cable.
Patent GB-411349-A (GB)
Title: Apparatus for interrupting the circuit of electro-therapeutic apparatus
IPC: G04F3/02
Filed: 1933-09-29
Abstract: 411,349. Clockwork actuation of switches and interrupters. WALDENER, E. W., Duvbo, Sundbyberg, and NOBEL, R. B. L., Djursholm, both in Sweden. Sept. 29, 1933, No. 26891. Convention date, Sept. 30,19 32. [Class 38 (v).] An apparatus for automatically interrupting the circuit of an electrotherapeutic apparatus after a predetermined time period has a variable resistance attached to the alarm movement of a clockwork in such a manner that when the alarm is released the resistance is gradually introduced into the circuit which is finally broken after the current has been reduced to a negligible value. Periodical interruptions in the therapeutic circuit may be introduced by a pallet acted upon by the balance wheel of the clockwork mechanism, the pallet being adapted to make and break contact in its oscillations between contact springs in the controlled circuit. As shown in Figs. 1 and 2 the hand 1 (Fig. 2) when moved in the direction of the arrow simultaneously winds the clock spring and winds and sets the alarm movement, the spindle of the latter carrying the arm 12 (Fig. 1) of a variable resistance which is cut out of circuit during the setting movement, the contact arm 12 being moved to the dotted position 12<1>. The hand may now be returned to any chosen time setting and the running down of the cloch-work is initiated. During this period the oscillations of the balance wheel 29 cause a pivoted pallet 28 to engage a contact spring 22 and move it periodically into engagement with a relatively fixed contact spring 21. This action may be employed to produce a corresponding series of current interruptions in the therapeutic circuit. At the end of the running-down period the alarm mechanism is released and the resistance contact arm is then moved over the resistance at a rate which is governed by the usual ringing escapement wheel 15. Thus the resistance is gradually inserted in the circuit before it is finally broken. Any other form of alarm clock may be employed and the resistance contact arm may be driven from the alarm movement through gearing.
Patent GB-156366-A (GB)
Title: Improvements in or relating to the control of aeroplanes and the like
IPC: B64C3/50
Filed: 1919-11-01
Abstract: 156,366. Marks, E. C. R., (Dare, M. E.). Nov. 1, 1919. Steering and balancing; planes, construction and arrangement of.- An aeroplane wing is composed of front and rear sections each mounted to rock about axes extending along the wing, the two sections being pivotally connected together, so that, by adjustment of their common pivot, up or down, the camber of the wing is varied. In the form shown in Figs. 2 and 4, the ribs at the inner end of the wing comprise front portions 20 and rear portions 21 hinged together by a bar 26. while the ribs 24, 25 at the outer end are continuous. The parts 20, 21 are pivotally mounted on rods 22, 23 of the wing framework, and the bar 26 is jointed at 28 to the rib 24, so that the inner end of the bar may be moved up and down to vary the camber of the inner portion of the wing. The parts 20 may be made extensible by means of a sliding connection 34. The covering is made in sections 41, 42, 43 overlapping and sliding at adjacent edges. The wing is carried by a frame 6, Fig. 5, pivoted at 5 to a rigid support 4 at the side of the body, so that the incidence of the whole wing may be adjusted by means of gearing 9, 12 and a lever 13. The bar 26 is raised and lowered by rack-andpinion gearing 29, 30, the racks at the two sides of the machine being operated in the same or opposite directions by the following gearing. A lever 35 pivoted at 36 carries drums 37 rotatable by a hand-wheel 38, Figs. 5 and 8, and also pairs of pulleys 39, 40 at opposite sides of the pivot 36. Cords or chains 31, 32 are arranged as shown in Figs. 5 and 8 between the drums 37 and two sprockets 33, one connected to each pinion 30, so that when the lever 35 is moved about its pivot 36, the camber is adjusted in the same sense on the two sides of the machine, whereas when the wheel 38 is rotated, the adjustment of camber is in oppositesenses.
Patent GB-207936-A (GB)
Title: Improvements in jib cranes
IPC: B66C23/10
Filed: 1922-10-05
Abstract: 207,936. Weddell, A. H. Oct. 5, 1922. Jib cranes.-To ensure horizontal travel of the load in luffing, the load rope is passed from the winding drum over a movable pulley B to the jib head A. As the jib is luffed outwards from OA to OA<1>, the pulley B is moved along the vertical line OB through the jib pivot, so that the distance OB varies with the angle AOD according to the equation OB 2K+1 1 - = ----- - ----- sin AOD, OA 2K(K+1) 2K(K+1) where K is a suitable constant. It then follows that BA increases according to a similar sine law so that both OB and BA increase in proportion to the decrease in AD and the change in the length OB+BA may be made equal and opposite to the change in the height AD. Different values for K may be chosen according to the number of falls of rope between O and B, and between B and A. A weight for balancing the jib is suspended from a rope wrapping a pulley at B. In one form, pulleys B are carried on levers which are pivoted to the frame at E and are moved by a link FC connected to an extension of the jib. The jib is luffed by a rope on a drum M which passes over a pulley at B, and a tail-rope from the luffing barrel supports the balance weight. In modifications, the pulleys B may be mounted on a carrier on the mast of the crane, the carrier being moved by a link such as FC or by a rope connected to the jib and passing over a pulley on the mast. In another form, the jib is luffed by a crank and connecting-rod, and the balance weight is hung on a rope passing over a pullev at B to a purchase block anchored to the jib pivot O. A multiple-purchase block may be used for the load, the load rope being anchored at A, at B, or to the frame, or wound on the luffing barrel. In an arrangement such as that shown in Fig. 2, the luffing and hoisting drums may be geared together, the purchase in the load rope being suitably modified. In all arrangements, the load rope may, for exact compensation be led round a sheave at the jib-foot pivot, so as to avoid any error due to the inclination of the rope JB to the vertical, or this error may be corrected approximately by a slight alteration in the value of the constant K.
Patent GB-976900-A (GB)
Title: Improvements relating to oil-filled electrical apparatus
IPC: H01F27/14
Filed: 1961-07-25
Abstract: 976,900. Transformers. LICENTIA-PATENTVERWALTUNGS-G.m.b.H. July 25, 1961 [July 25, 1960], No. 26912/61. Heading H1T. A tank or conservator for an oil-immersed transformer has at least two non-permeable membranes 5, 6, 7, 8 (Fig. 1) spaced apart therein to form three or more separate chambers, one chamber 4, containing oil with a cushion of inert gas, being separated from a vented chamber 2 by at least one other chamber 3, which may be filled with nitrogen, means 16 (which may be silica gel or fused calcium chloride) being provided to keep the gas cushion dry. Moisture liberated from the transformer finds its way into the gas, which may be nitrogen, and its presence may be determined by a hygrometer 17. The gas cushion may be in a separate chamber connected to the oil chamber by a pipe (Fig. 2, not shown). In another modification (Fig. 3, not shown), the membranes are in the form of envelopes enclosed one within another.
Patent GB-793188-A (GB)
Title: Improvements in or relating to measuring means for electric welding currents
Inventor: GARSCIA ALFONS JOHN
IPC: G01R15/00
Filed: 1954-09-16
Abstract: 793,188. Electric transformers. ROLLSROYCE, Ltd. Aug. 31, 1955 [Sept. 16, 1954], No. 26931/54. Class 38 (2). [Also in Group XXXVI] Fig. 5 shows a split toroidal pick-up coil assembly 17 forming the secondary of a current transformer which surrounds as primary a current carrying member 12 of a welding- machine (Fig. 4, not shown). An even number of solenoid coils 18 are spaced tangentially of the toroidal circumference and are alternately connected in series in two distinct circuits, which are connected to separate inputs of an electronic measuring circuit (Fig. 3, not shown) displaying the integrated value of the successive cycles of welding current.
Patent GB-968640-A (GB)
Title: Improvements in or relating to surveying instruments
IPC: G01C15/10
Filed: 1962-07-13
Abstract: 968, 640. Sighting instruments. S.H.F. SARL. July 12, 1963 [July 13, 1962], No. 26960/62. Heading G1F. A surveying instrument comprises an opentopped box 1 with a detachable lid 2, a mirror 10 being adjustably mounted substantially horizontally in the box 1 with a spirit level 11 on its mounting enabling the mirror to be adjusted to a true horizontal position, the lid 2 having a target 14 marked thereon on its underside the target being of identical shape to that of the mirror 10, and having twice the linear dimensions thereof, the target having a central aperture 15 which also passes through the lid. The mirror is mounted in a table 8 and has a central spot-target 20. The table 8 is mounted on a ball and socket joint 6, 7, and carries a mounting 12 for the spirit level 11, the mounting being adjustable relative to the table by screws 13 in calibrating the instrument. In use, if it is desired to locate a point B on a beam 16 vertically above a point A on a beam 17, then an arrow 18 on the table 8 is placed adjacent the point A, the table having been previously levelled using the level 11. The lid 2 is placed adjacent the beam 16 and the image 14<1> of the target 14 is viewed through the aperture 15. The lid 2 is manipulated until the image 14<1> is framed exactly by the mirror 10. An arrow 19 on the lid 2 then indicates the point B. The mounting for the table may alternatively use levelling screws, a lockable gimbal system, or a free suspension system for the table with suitable damping. The centre of the mirror may be transparent and the base of the box 1 may have a corresponding hole so that a ground point may be seen from above. The box and lid may be of any shape provided the target 14 is twice the size of the mirror 10. The target 14 may be luminous, and a telescope may be fitted over the aperture 15. The box and lid may each be provided with an extensible rule to enable the box or lid to be spaced a known distance from a wall.
Patent GB-1156398-A (GB)
Title: Catalyst Regeneration
Inventor: LUM DAVID W
IPC: B01J23/96
Filed: 1967-06-12
Abstract: 1,156,398. Regenerating esterification catalysts. NATIONAL DISTILLERS & CHEMICAL CORP. 12 June, 1967 [10 June, 1966], No. 27049/67. Heading B1E..[Also in Division C2] Group VIII noble metal catalysts which have become deactivated during use in the preparation of an unsaturated organic ester by reaction of an olefinically unsaturated organic compound with an organic carboxylic acid in the presence of oxygen are regenerated by contact with oxygen to remove substantially all organic residues deposited on the catalyst, followed by contact with hydrogen to reduce the catalyst to its metallic state. The preferred catalyst is Pd which may be supported on Al 2 O 3 and activated with an alkali metal or alkaline earth metal compound. Additional treatments may be incorporated in the regeneration procedure if desired, e.g. washing with water or other solvents and purging with inert gas.
Patent GB-409580-A (GB)
Title: Hot water bottle of rubber
IPC: A61F7/08
Filed: 1933-10-02
Abstract: 409,580. Hot-water bottles. BLUM, A., 45, Br³nnerstrasse, Vienna. Oct. 2, 1933, No. 27085. [Class 64(ii).] A rubber hot - water bottle has its opposite sides connected by yieldable folding strips 3-6 extending longitudinally and transversely of the bottle and dividing the bottle into intercommunicating compartments. The side walls of the bottle are formed of curved ribs 7, 7<1> with rubber lugs 9.
Patent GB-134840-A (GB)
Title: Improvements in Arbors and Bearings of Wheels in Time Piece Movements
Inventor: ECAUBERT FREDERIC
IPC: G04B31/08
Filed: 1919-11-04
Abstract: 134,840. Ecaubert, F. Nov. 4, 1918, [Convention date]. Pivoting; arbors.-The arbor 18 is formed with a pointed cylindrical pivot 19 making a sharp shoulder with a neck 23, and a cup bearing 12 is provided which fits a hole in the plate 10, either screwing therein, Fig. 2, or being retained by screws 16, Fig. 3, or by friction, Figs. 4 and 6. The oil space thus left about the point of the pivot may be kept blind or be formed with lateral orifices 22, Fig. 6. The interior of the bearing is hardened.
Patent GB-1398040-A (GB)
Title: Supercritical steam turbine power cycle
IPC: F01K13/00
Filed: 1973-06-07
Abstract: 1398040 Steam turbine plant critical pressure POLSKA AKADEMIA NAUK INSTYTUT MASZYN PRZEPLYWOWYCH GDANSK WRZESZCZ 7 June 1973 [10 June 1972] 27134/73 Addition to 1312607 Heading F1T [Also in Division F4]  In a supercritical steam turbine power cycle the steam is expanded in a steam turbine stage T 1  to a pressure above the critical pressure, the steam then being divided at point 11 into two streams one of which undergoes further expansion in a steam turbine stage there being reheating between turbine stages and multi-stage regenerative feed water heating by means of steam extracted from the turbine - none of this is shown in the Figure. The other stream is used as a heating medium being thereby cooled, in a high temperature regenerative heat exchanger RWC, this stream being then reunited with the stream which has been heated by regenerative feed water heating, the united streams then being heated in the regenerative heat exchanger RWC and in the boiler K. The regenerative heat exchanger RWC comprises a plurality of sections the mass flow rate of the heating medium in one section differing in a stepwise fashion from the mass flow rate in an adjacent section. In Fig. 1 the mass flow in section B is greater than that in section A, while that in section C is less than that in section B, that in section D is greater than that in section C, and that in section E is greater than that in section D. In Fig. 2 the heat exchanger RWC comprises three sections F, G, H the flow of heating fluid in section G being less than that in sections F and H since part of the heating fluid discharging from section F is passed to a separate heat exchange system Qg and is then returned to pass through section H together with heating fluid from section G.
Patent GB-533056-A (GB)
Title: Improvements in saddles for cycles or motor-cycles
IPC: B62J1/02
Filed: 1939-10-04
Abstract: 533,056. Saddles. RALEIGH CYCLE CO., Ltd., and MARSHALL, C. Oct. 4, 1939, No. 27142. [Class 136 (iii)] In cycle.saddles.of the type in which the top comprises front and rear sets of tension springs or rubber cords, the coupling between the peak springs and the rear or seat springs is flexible or articulated or resilient and extends rectilinearly and. transversely of the length of the seat, whereby a narrowing of the seat at this position under pressure from the thigh muscles is permitted, but widening or spreading of the seat at this position is prevented. In the form shown in Fig: 2, the outer peak springs 13 are connected by a chain 17, and the ends of the outer and intermediate peak springs 13, 14 are rockably engaged with the centres of double-armed links 18, the diverging arms of which terminate in eyes 19 to which the front ends of the diverging seat springs 15, 16 are attached. Two of the intermediate seat springs 16 connected to different links 18 are coupled together by a link 20. In a modification, the chain 17 and the link 20 are omitted, and the links 18 are connected together by short transverse links hooked into the eyes 19. In another form, Fig. 6, a sinuous coupling member 23 has loops 24 to which the rear ends of the peak springs 13, 14 are attached, and loops 25 to which the front ends of the seat springs 15, 16 are attached, forwardly projecting loops 26 being also employed to space the seat springs. The sinuous member 23 is sufficiently resilient to allow any desired narrowing of the saddle under thigh pressure, but sufficiently rigid to limit the width of the spring assembly at this position.
Patent GB-1421618-A (GB)
Title: 1-1-copolymers of allyl acetate and maleic anhydride
IPC: C08F220/00
Filed: 1973-06-07
Abstract: 1421618 1 : 1 - Copolymers of maleic anhydride and allylacetate CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GmbH 7 June 1973 [9 June 1972] 27234/73 Heading C3P A novel process for producing known 1 : 1 copolymers of maleic anhydride and allyl acetate comprises copolymerizing these two monomers in an organic liquid which is a solvent for the monomers and a non-solvent for the resulting polymer, in the presence of a dispersant for the monomers and an initiator which is a dialkylperoxydicarbonate, a dicycloalkylperoxydicarbonate or another perester. Examples of the organic liquid are petroleum ether or an aromatic hydrocarbon such as a C 1-3  mono-, di-, or tri-alkyl benzene or benzene itself. The dispersant may be a polyvinyl alkyl ether or polystyrene. Specific initiators referred to are diisopropyl-, dihexyl-, bis-ethylhexyl-, and dicyclohexylperoxydicarbonate, and also t-butyl peroctoate, t-butyl perisonon- anoate and t-butyl perpivalate.
Patent GB-315626-A (GB)
Title: Improvements in or relating to liquid supply systems
IPC: F02M37/02
Filed: 1928-09-22
Abstract: 315,626. Rackham, G. J., and Associated Equipment Co., Ltd. Sept. 22, 1928. Vacuum apparatus.-In a liquid supply system, especially for petrol in motor vehicles, an auxiliary tank 12 is provided with an automatic device 14 for supplying it from a main tank at a lower level, and with outlet pipes 20, 21 controlled by a cock 23, the pipe 20 reaching to a point above the delivery orifice 19 of the device 14.
Patent GB-242970-A (GB)
Title: Means for obviating the action of heat in a projector upon the backing of the images to be projected
IPC: G03B21/16
Filed: 1925-10-30
Abstract: 242,970. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. Nov. 15, 1924, [Convention date]. Kinematograph apparatus. -The support for the image being projected is cooled by a current of air which is caused to sweep over the whole of both its faces with a pressure which is substantially the same on both faces. As shown transparent walls 3, 4 are provided in a frame 2 surrounding the support 1. Air is supplied from a lateral conduit 5 and is allowed to escape as indicated by the arrow f. The walls 3, 4 may consist of planoconvex lenses.
Patent GB-923018-A (GB)
Title: Home ice-making appliance
IPC: F25C1/24
Filed: 1961-07-27
Abstract: 923,018. Ice-making. WHIRLPOOL CORPORATION. July 27, 1961 [July 27, 1960], No. 27332/61. Class 29. Ice-making apparatus comprises a mould, means for delivering a preselected volume of water to the mould, means for freezing the water in the mould progressively inwardly so that the freezing of the innermost portion of the water forces the ice block free of the mould and means for removing the loose ice block from the mould. The mould 14 is mounted in the freezing compartment of a domestic refrigerator on a shaft 16 which projects through the refrigerator wall 20, cold air being directed on to the top of the mould through louvres 13 so that freezing occurs progressively downwardly. When the final freezing has occurred and the ice blocks are forced loose the pressure in a capillary tube 38 which extends along the axis of the shaft 16 falls sufficiently to allow the diaphragm of a bellows 51 mounted on the end of the shaft to move to the left in Fig. 1. A control arm 46 having a button 47 in contact with the said diaphragm is then urged in an anticlockwise direction by a spring 54 and moves clear of a restraining lug 58 to permit a spring 74 to rotate the shaft 16 through 90 degrees, thus tipping out the ice into a bin 18. During this rotation, cams (Figs. 2-9, not shown), mounted on the shaft 16 successively close the water outlet from a valve housing 70 and open the inlet thereof. As the housing fills with water a rod mounted therein is forced downwardly to operate a lever 64 which rotates the shaft 16 back to its initial position and rewinds the spring 74. When the housing 70 is full its inlet is closed and water is supplied through its outlet to a pipe 26 which communicates with a filler pipe 27 projecting through the refrigerator wall. The temperature of the water thus supplied to the mould 14 causes the pressure in capillary 38 to rise and reset the bellows 51 and control arm 46.
Patent GB-798855-A (GB)
Title: Improvements in or relating to protective headwear
IPC: A42B3/14
Filed: 1955-09-26
Abstract: 798,855. Helmets. KANGOL HELMETS, Ltd., and MEISNER, S. Sept. 25, 1956 [Sept. 26, 1955], No. 27380/55. Class 63 A helmet 14 has a harness consisting of a headband 15 and webbing 16 and is provided with a detachable lining 10 secured to the headband by press studs 13, 19. The lining 10 is in the form of a sleeve which is folded up at its lower end to pass from the inner surface of the headband 15, around the bottom edge thereof to where it is fastened on the outer side of the headband.