baber/WOPTO huggingface dataset:
Patent GB-1400620-A (GB)
Title: Cooling water pumps for vehicle engines
IPC: F16C37/00
Filed: 1972-11-13
Abstract: 1400620 Centrifugal pumps SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 13 Nov 1972 [11 Nov 1971] 52387/72 Heading F1C An impeller and driving unit for the cooling water pump of an I.C. engine comprises a mounting structure for attachment to a casing, a rotatable assembly having an impeller disposed adjacent one side of the mounting structure and connected to a rotatable driving structure including a drive pulley, the pulley forming part of the rotatable assembly and being disposed adjacent the opposite side of the mounting structure, a rolling bearing for transmitting radial and thrust loads from the rotatable assembly to the mounting structure, and a seal between the rotatable assembly and the mounting structure, each part of the unit except the rolling elements of the bearing and the seal being permanently secured to an adjacent part of the unit. In Fig. 1, the pump impeller 4 is permanently secured to a hub 13 integral with a cogged driving pulley 11 and the inner race 9 of the ball bearing, the outer race 8 being permanently secured to a mounting structure 1 comprising an aluminium part 7 permanently attached to a thin wall 6 of pressed sheet metal, diecast aluminium or plastics material. A seal ring 5 is provided between the wall 6 and the hub 13. Apertures 14 communicate with atmosphere to facilitate cooling of the seal and bearing and to drain any leakage. In Fig. 2, the inner race 15 is permanently secured on a flange 16 of the mounting structure 1, while the outer race 17 is permanently secured to the inner circumference of the pulley 11. The impeller 4 has an integral stub shaft 21 which is permanently secured to the pulley hub. The seal ring 5 is provided between the mounting structure 1 and the impeller 4 or may be disposed radially inwardly of the inner race 15. The apertures 14 are in this case provided in the web 20 of the pulley.
Patent GB-1472500-A (GB)
Title: Rolling bearings
IPC: F16C19/38
Filed: 1975-12-22
Abstract: 1472500 Bearings HOESCH WERKE AG 22 Dec 1975 [6 Jan 1975] 52441/75 Addition to 1382400 Heading F2A The rolling bearing disclosed in UK Specification 1,382,400 is modified in that the two wire members 9, 10 which each have a single running track are arranged in the undivided ring 13, and the wire member 8 having the two running tracks is arranged in the divided ring 12. The wire member 8 is held in an annular seat provided by two inclined surfaces 20, 21. The rolling elements, which may be cylindrical rollers, barrel rollers, or balls, are disposed within cages 2a, 3a. The support member 8 may be formed with a polygonal cross-section, e.g. a square cross-section. In an alternative embodiment, the divided ring forms the inner ring of the bearing.
Patent GB-1249729-A (GB)
Title: A thermal switch for an electrical circuit
IPC: H01H73/30
Filed: 1969-10-29
Abstract: 1,249,729. Automatic circuit breakers; thermal switches. ELLENBERGER &- POENSGEN G.m.b.H. 29 Oct., 1969 [7 Nov., 1968], No. 53074/69. Heading H1N. A thermal switch for an electric circuit comprises a bimetal strip 25 secured to one end of a heat storage device in the form of a block 27 with a heating element 30 secured to the other end of block 27 and a switch member 9 actuatable in dependence on bimetal strip 25 and a bimetal strip 37 heated by current passing through element 30 and carrying a movable contact 39 co-operating with a fixed contact 40 such that in the cold state of bimetal 37 contacts 39, 40 are closed and in the heated state contacts 39, 40 open to break the current to bimetal 37 and element 30. As shown, there are two separate electric circuits in the switch, (a) a main circuit comprising terminal 3, fixed contact 7, movable contact 8, bridge 9, fixed contact 10 which also serves as a latch, and terminal 4; and (b) an excitation circuit comprising terminal 5, heating coil 30, metal bar 28, bimetal 37, movable contact 39, fixed contact 40 and terminal 6. Heat from coil 30 on insulation 29 heats metal bar 28 which heats heat storage device 27 comprising a metal block for example constructed of copper-plated and nickel-plated iron which after a time delay heats bimetal 25 which bears on insulation 24 bearing on terminal 4. Bimetal 25 bends counter-clockwise and is followed by terminal 4, which is a pre-stressed spring, and latching block 10 frees bridge 9 which is moved upwards by spring 13 and spring 20. If pushbutton 11 is held down during this operation, bridge 9 will still move upwards under the action of spring 20. On cooling, bimetal 25 bends clockwise restoring terminal 4 . and block 10 and when pushbutton 11 is depressed, member 21 on member 15 on rod 12 integral with or attached to pushbutton 11 engages projection 22 on bridge 9 pushing bridge 9 down until it engages beneath block 10, release of pushbutton 11 allowing spring 20 to pivot bridge 9 about pivot 16 on member 15 so that projection 22 slides off member 21 re-engaging contacts 7, 8 with a quick action. If the excitation voltage is high bimetal 37 operates to keep making and breaking contacts 39, 40 to ensure that the heating up of bimetal 25 and the time lag remains constant with different excitation voltages. The excitation energy may be adjusted by adjusting screw 41. The tripping current strength of the switch is adjusted by screw 33 against spring 38, pivoting block 27 about a pivot 27<SP>1</SP>. In place of screw 33 ambient temperature compensating bimetal may be provided, Figs 3, 4 (not shown) bearing on metal bar 28 and openings are provided in the housing adjacent the compensating bimetal. The switch parts are held in recesses by the assembled housing parts secured by hollow rivets through holes 2. The switch may be plugged into a support by terminals 3, 4, 5, 6.
Patent GB-1425908-A (GB)
Title: Spring driven clockwork movements
IPC: G04B17/00
Filed: 1973-11-20
Abstract: 1425908 Watches; automatic control of speed or frequency of vibrations BERNARD GOLAY S A 20 Nov 1973 [21 Nov 1972] 53707/73 Headings G3R and G3T A timepiece movement is driven by a spring at a speed which is stabilized by deriving an alternating voltage Ui at a frequency FG from a generator coupled to the movement, and feeding a signal at that frequency to a comparator E which also receives, via a frequency divider F, a signal at a reference frequency FR from a crystal oscillator G, the comparator output being used to increase the electrical load on the generator, thus braking it, when FG is greater than FR. The voltage Ui is also passed through a rectifier A to produce a voltage V across a capacitor C, this voltage being used to supply the electronic circuitry. The comparator E may be a phase comparator but as described it is an up-down counter, FG and FR being fed to the up and down inputs respectively. When FG exceeds FR and the count is rising, the comparator produces a binary output "1" which is inverted to zero by an inverter amplifier H and the voltage across resistor R is equal to V, thus loading the generator. If the count is stable or falling, the comparator E produces a zero signal which is inverted by H to V, so that there is no voltage across R. In an alternative arrangement, the rectifier is provided by a switching transistor (B) Fig. 6 (not shown) and the capacitor C is replaced by a small storage battery which can supply the circuity when the generator is not loaded. The output of inverter H is fed to the base of the transistor (B), turning the latter on to charge the battery when FG exceeds FR. Fig. 1 shows a watch in which the generator 13 comprises a fixed coil 15 and magnets 14 on a rotor which is continuously driven by a spring barrel 1 via a hand train 2-12. The barrel 1 is wound automatically by an oscillatory rotor 29 via pawls 22, gear 23, and a ratchet wheel 24. The circuitry is integrated in a CMOS block 16 connected to a quartz oscillator 18 which is adjustable by trimmer 17. The generator may alternatively use an oscillatory rotor in the form of a balance driven by an escape wheel (26), Fig. 3 (not shown) and a pallet lever (27). The generator may have a moving coil and fixed magnets.
Patent GB-1487957-A (GB)
Title: Apparatus for producing an electrical signal which is a measure of a variable
IPC: F02D21/08
Filed: 1974-12-12
Abstract: 1487957 Hall plate transducers MASCHINENFABRIK AUGSBURG-NURNBERG AG 12 Dec 1974 [19 Dec 1973] 53720/74 Heading G1N [Also in Division G3]  The apparatus is concerned with converting an independent variable say a into a given function say f(a) involving the variable. The function may be changed by adjusting the apparatus or by adding another independent variable to it. In Figs. 2, 3 (not shown) possible mobile arrangements and shapes of permanent or electro-magnets (2) and ferrite members (6) modifying the magnetic fields are illustrated in relationship to a Hall generator (1) to produce different functions of a variable. In Fig. 4 the Hall generator 1 comprises a platelet 8 embedded in a ferrite block 7, and a supply current thro' 12 and 13 proportional.to say the r.p.m. of a machine provides a current to the terminals 9, 10 proportioned to itself and the field strength of a magnet 20 shielded by a ferrite plate 15 and mounted on a guide 16 which may move with a regulating rod of a motor vehicle fuel injection pump (not shown). When further factors such as speed or temperature of the engine affect the engine control, the function f(a) can be either added to or multiplied by a value which is for example a function of the speed. Addition may be carried out by means of known equipment such as a resistance network, amplifier or the like. The displacement of 16 is indicated by a pointer 17  and an amplifier 21 may connect thro' a lead 22 to an actual value/desired value comparator forming part of a controller Fig. 5 (not shown) see also Division G3.
Patent GB-537313-A (GB)
Abstract: 537,313. Calculating-apparatus. WEILENMANN, R. Feb. 21, 1940, No. 3307. Con vention date, March 27, 1939. [Class 106 (i)] A device for ascertaining the number of days between given dates comprising a cylindrical roller 1 and a rotatable and axially movable sleeve 2. The roller is marked on the periphery with divisions arranged along a spiral line 4, Fig. 1, representing the days and months for a period of one and a half years and adjacent thereto consecutively numbered divisions 5 for the same period. The sleeve or slide 2 is formed with a helical slot 7, a reading aperture 8 and a scale 9 representing the days and months of a year. By setting the given dates in alignment on the scales 4 and 9 the number of days therebetween appears in the aperture 8. A transparent cursor may be provided to facilitate setting of the given dates. In addition to the scales mentioned the roller and sleeve may be provided with logarithmic scales.
Patent GB-1105830-A (GB)
Title: Improvements in tubular articles of helically-wound strip and the manufacture thereof
IPC: B31C3/00
Filed: 1965-12-21
Abstract: 1,105,830. Helically-wound containers; making articles by winding. M. HAWERKAMP. 21 Dec., 1965 [30 Dec., 1964], No. 54243/65. Headings B8D and B8G. [Also in Division F2] A tubular article, such as a container, is formed from a helically-wound composite strip 4 of plastics having a hollow reinforcing insert 4b defining a continuous helical ducting 11 within the wall of the container. The container is formed by extruding a hollow plastics strip (4a), Fig. 1 (not shown), around the hollow reinforcing insert, which may also be a plastics extrusion, and flattening the strip as it is wound on a mandrel (1) with overlapping convolutions so that internal ribs (12) on the insert, Fig. 5 (not shown), abut an opposite wall to define the ducts. The ducts may be used to carry a coolant to render the container capable of carrying materials at elevated temperatures.
Patent GB-1124970-A (GB)
Title: Improvements in or relating to automatic testing and calibration systems
IPC: G01N33/00
Filed: 1965-12-23
Abstract: 1,124,970. Calibration of electrical gas analysers. SCHOLVEN-CHEMIE A.G. Dec. 23, 1965 [Dec. 28, 1964], No. 54666/65. Heading G1N. The calibration of gas analyser instrument 7 is tested by a programmed calibration unit which injects a test gas from conduits 9 or 10 into the analyzer and compares the voltage therefrom with a nominal constant voltage. The calibration unit has a programme emitter comprising a synchronous motor 11 which drives a contactor roller 13 operating micro switches to control the cycle of operations in the test. In operation an electro-magnetic valve 4 is caused to close by the contactor roller to interrupt the flow of working gas to the analyzer 7 and a valve 6 is opened to admit test gas via conduit 8 to the analyzer. The voltage output from analyzer 7 is compared with a constant voltage source 3 and any difference voltage operates a motor 14 to adjust a separate control unit 15 to reduce the difference to zero. The cycle is then repeated with a second test gas, a motor 16 on unit 17 serving to reduce the voltage difference. A graphic recorder 18 registers the errors of the analytical instrument 7 as occurring and as reduced.
Patent GB-1354006-A (GB)
Title: Cooling of sheet glass
IPC: C03B15/02
Filed: 1971-11-25
Abstract: 1354006 Drawing sheet glass CORNING GLASS WORKS 25 Nov 1971 [27 Nov 1970] 54793/71 Heading C1M To control the cooling of newly formed sheet glass S drawn from a melt G by rollers 18 in a forming zone 14 and which while at an elevated temperature passes through a transition zone 12 to an annealing zone 16, the transition zone 12 includes a housing 10 which has a wall member 28 arranged to face the newly formed sheet glass S and which is composed of a material having high thermal conductivity and emissivity and low thermal expansion, the back surface of the wall member and the housing forming a confined passage 48 for a high velocity stream of cooling air in a direction which is longitudinal to the draw of the glass sheet and in which the rate of air flow can be varied in different segments across the width of the passage if required. As shown, the air flow is in a direction counter to the direction of sheet draw and is provided by air being drawn into the housing 10 through an inlet manifold 40 with filter (42) by vacuum exhaust ducts 54 connected to outlet openings (50) across the width of the housing 10, each duct 54 having an adjustable valve 56 and leading via a main exhaust header 58 to an exhaust fan (62). A heater block 64 is slidably mounted on rails (66) and can be moved to adjust width of passage 48. Heating elements (74) on block 64 can be used in start up operations or to stabilize the draw if there is a glass break-up. The wall member 28 is preferably of SiC slabs. Refractory support members 20, 22 may also have cooling devices across the width of the sheet. Patent Specification 1,277,397 is referred to.
Patent GB-1124939-A (GB)
Title: Improvements in and relating to over-load relays
IPC: H01H83/22
Filed: 1965-12-28
Abstract: 1,124,939. Protective arrangements. ALLMANNA SVENSKA ELEKTRISKA A.B. 28 Dec., 1965 [28 Dec., 1964], No. 54947/65. Heading H2K. [Also in Division H1] A polyphase overload protective device comprises a plurality of bi-metallic elements 16 . . . 18 (one shown) which act on a lever system formed by a first pivoted lever 34 and a second lever 32 pivoted on the first lever. Under balanced overload conditions, the bi-metallic elements 16. . . 18 are uniformly heated by heaters 20 ... 22 (one shown) and cause the first lever 34 to turn about its adjustable pivot until its upper end abuts an adjustable stop 44. Thereafter the bi-metallic elements cause the lever 32 to turn about its pivot 33 to operate a micro-switch 54. Under unbalanced overload conditions, the movement of the lever 34 is limited by the least heated bimetallic element abutting a stop member 46 on the lever 34. This enables the bi-metallic element with the greatest heating to turn the lever 32 to operate the switch 54 without having to move the lever 34, so that switch operation is effected at a lower current level under unbalanced conditions than under balanced conditions.
Patent GB-1160276-A (GB)
Title: Improvements in or relating to Work Steadies
Inventor: MILLS JOHN PENROSE
IPC: B24B41/06
Filed: 1965-12-28
Abstract: 1,160,276. Work rests. H. M. HOBSON Ltd. 23 Nov., 1966 [28 Dec., 1965], No. 54948/65. Headings B3D and B3T. A work steady, for supporting a workpiece in a machine tool, comprises (a) a movable reaction member adapted to bear against the workpiece, (b) an hydraulic cylinder containing a piston having a piston-rod carrying the reaction member, (c) an inlet for admittingliquid under constant pressure to one end of the cylinder, (d) a valve controlling the pressure of admission of liquid to the other end of the cylinder which is movable to establish according to its position a variable hydraulic pressure difference between the opposite ends of the cylinder which counteracts the load exerted on the reaction member by the workpiece, (e) a feeler for sensing changes in size of the workpiece, and (f) connections between the reaction member and the valve and between the feeler and the valve for adjusting the valve to maintain the reaction member in contact with the workpiece and under an hydraulic pressure difference which counterbalances the load. A block 3, mounted on a slide 30 slidable on a main frame, has formed therein a cylinder 4 containing a piston 5, the piston-rod 6 carrying a reaction member 7 having tungsten carbide pads 8 engaging a workpiece 2 being ground by a grinding wheel 1. A slot 11 in the reaction member 7 is engaged by a roller 9 on the upper end of a rack 10. A feeler 13 having a tungsten carbide pad 14 engaging the workpiece is mounted at the upper end of a rack 12. The racks 10, 12 mesh with a pinion 15 rotatably mounted on the stem 16 of an hydraulic control valve 17. The valve 17 controls communication between a high pressure oil inlet 18, a passage 19 leading to the lower end of the cylinder 4 and a drain outlet 20; the inlet 18 communicates directly with the upper end of the cylinder 4. The hydraulic pressure acting on the upper end of the valve 17 acts through the rack 12 to hold the feeler 13 against the workpiece. Any tendency of the piston 5 to move downwardly causes the rack 10 to actuate the valve 17 to cause increase of pressure in the lower end of the cylinder. The reduction in size of the workpiece causes the rack 12 to actuate the valve 17 to raise the piston 5.
Patent GB-549546-A (GB)
IPC: C23F11/18
Abstract: 549,546. Oil emulsions. STEINITZ, E. Aug. 5, 1941, No. 1130. [Class 1 (i)] [Also in Groups XVIII and XIII] A cooling liquid for radiators and other heat exchangers comprises an emulsion of oil in an inorganic salt solution such as calcium chloride, which is stabilized by a colloidal ester of carboxy cellulose, such as " May and Baker 444." The oil may be vegetable oil, or mineral oil capable of becoming oxidized in use or which has been previously oxidized. A corrosion inhibitor may be added, such as alkali monochromate or dichromate, chlorate, or perchlorate, especially in presence of aluminium. An antifreezing agent may also be added, such as alcohols, ethyl lactate, or potassium lactate.
Patent GB-1286546-A (GB)
Title: Improvements in or relating to signal recording and reproducing apparatus
IPC: G11B7/24
Filed: 1969-11-11
Abstract: 1286546 Recording and playback LICENTIA PATENT-VERWALTUNGS GmbH 11 Nov 1969 [23 Jan 1969] 55021/69 Heading G5R A hill-and-dale record 1 is scanned and played back by means of a light beam 5 producing, by either refraction as shown, or reflection, Figs. 3, 5 and 7 (not shown), convergent and divergent light rays from the record to give variations in light intensity at an aperture 8 communicating with a photo-electric device (9), Fig. 1 (not shown). The signals to be recorded modulate, in frequency or phase, a carrier and the recorded amplitude may be varied with the recorded wavelength so that the successive deformations of the record surface form, in longitudinal section, different-sized arcs of identical circles or parabolas. The bottom of the record groove may be inclined sideways in order to direct the reflected light rays (5<SP>1</SP>) away from the incident beam (5), Fig. 5 (not shown).
Patent GB-1450393-A (GB)
Title: Self-cancelling direction indicator swittch
IPC: B62D15/02
Filed: 1972-11-29
Abstract: 1450393 Self-cancelling direction-indicators LUCAS ELECTRICAL Ltd 26 Nov 1973 [29 Nov 1972] 55114/72 Heading G4Q [Also in Division H1] In a self-cancelling direction indicator switch, resistance to movement of the manual actuator is determined by the engagement of resilient plunger 23, Figs. 4, 6 with detachably mounted selected interchangeable contoured surfaces 45-48. In the embodiment spring plunger 23 may engage surfaces 45 having retaining detents 46, 47 at each end of the limit of movement or surface 48 having projections 50, 51 providing a resistance to movement prior to reaching the detented position. The self-cancelling pawls 32, 33 are disposed in a body 31 carrying the contoured surfaces 45, 46, 47, 48 so that the body 31 and pawls 32, 33 can be inserted as a unit into the switch assembly. In a modification Fig. 7 (not shown) the resistance to movement is also determined by the reaction of the spring plunger (123) on the self-cancelling spring biased pawls (132), (133) which have abutments (161-164) to restrict their pivoting motion and provide a resistance to movement prior to the plunger (123) reaching one of the detents (146, 147).
Patent GB-1420607-A (GB)
Title: Turbine housing
IPC: F01D9/02
Filed: 1972-12-06
Abstract: 1420607 Turbines W E WOOLLENWEBER 6 Dec 1972 56221/72 Heading F1T A housing 10 for a centripetal turbine has at least two inlet passages 26, 28, passage 28 surrounding at least 160 degrees of passage 26, viewed in a cross-section at the termination 30 of the latter and normal thereto, termination 30 being at or upstream of the start of the volute portion 18 of the housing. Three inlet passages may be provided Figs. 16 to 19 and 20 to 25. (not shown). Each passage may be of constant, reducing or convergent-divergent cross-section towards volute 18. The turbine may drive an engine supercharger (54) Fig. 26 (not shown), respective branches (46, 48) of the engine exhaust manifold feeding driving gases to the turbine inlet passage. The housing may include two volutes each with its own inlet passages.