baber/WOPTO huggingface dataset:
Patent GB-564725-A (GB)
Title: Improvements in or relating to reciprocating ram pumps
IPC: F04B53/10
Filed: 1943-07-01
Abstract: 564,725. Reciprocating pumps. FINLAY, R. P., and FINLAY CONVEYOR CO., Ltd. July 1, 1943, No. 10680. [Class 102 (i)] A reciprocating pump has one or more ball suction valves 1, 10 of limited lift in cortainers A screwed onto the lateral wall of the pump, and one or more ball delivery valves 12, 17 in axial extensions of the pump body and urged towards their seats by means of springs 15, 18 supported by cylindrical elements 13, 20 which restrict the lift of the delivery valves. The lift of the valve 1 is controlled by a thin wall of the pump body, and that of the valve 10 by a perforated washer 11. The elements 13, 20 have cupped ends to receive the valves 12, 17, and they may be extensions of perforated washers 14, 19 or of polygonal screw caps, such as 5, 16. In a modification, the suction valve is controlled by means similar to that of the delivery valve. Specifications 346,532 and 542,096, [Group XXIX], are referred to.
Patent GB-107896-A (GB)
IPC: A47B21/02
Abstract: 107,896. Jones, J. A. Oct. 24, 1916. Tables with mechanically-connected movable parts.-In a convertible table for typewriters &c. in which the machine is enclosed in a space below the table top when not in use, the machinesupporting shelf d is adapted to be tilted inwardly from the position shown and is mechanically connected by cords or chains m, l to a table top or cover j mounted on pivoted arms k. At the back, the shelf is provided with pins or projections f engaging guide-grooves g.
Patent GB-1409942-A (GB)
Title: Desks
IPC: B01L9/02
Filed: 1973-03-06
Abstract: 1409942 Laboratory tables H POMEDORO 6 March 1973 [30 Oct 1972] 10887/73 Heading A4H [Also in Division B4] A desk, particularly for use in a chemical laboratory, has means 4 for illuminating the writing surface, an attachment 11 with electrically heated limbs for facilitating the removal of a jammed stopper from a flask, a cleaning tube (the open end of which is shown at 10) containing a spongy material for solvent whereby stirring rods 9 may be cleaned, and a dispenser 5 for wiping paper, the cleaning tube and paper dispenser being located in a rear panel of the desk. Pump means are provided for circulating solvent through the cleaning tube. The desk may also be provided with a bracket 8 with slit rubber discs for supporting rods 9, a paper weight 13 pivotally mounted on the writing surface and an illuminated viewer 7 with electrical switch 6.
Patent GB-131107-A (GB)
Title: Improvements in and relating to Heating and Ventilating Apparatus.
IPC: F28D1/02
Filed: 1918-07-04
Abstract: 131,107. Russell, J. N., and Rosser & Russell. July 4, 1918. Air, heating; forced ventilation.- Relates to apparatus for heating and ventilating buildings of the type in which a fan 7 and a damper 8 co-operate with a heating - element 2 arranged in a casing 1, the damper being closed when the fan is in motion so that the air is forced downwards past the heater, and when the fan is at rest, the damper is opened so as to allow the air to rise from the casing through the opening 10 under natural draught. According to the invention, the movements of the damper are controlled bv mechanical or electrical means brought into operation by setting the fan in motion. In the construction shown, a rod 9 connected to the damper 8 is secured to the pivot of the lever 11 of the switch 12 for controlling the fan, which is arranged in a side opening near the top of the casing. Or. a solenoid for regulating the damper may be connected in circuit with the starting- switch for the fan.
Patent GB-570185-A (GB)
Title: Improvements in flexible packing or gasket material
IPC: F16J15/00
Filed: 1943-07-07
Abstract: 570,185. Packing material; knitted fabrics. KINGMAN, R. B. July 7, 1943, No. 11038. [Class 74 (ii)] [Also in Group XXVI] Packing material comprising knitted wire or metal ribbon fabric arranged in laterally convolved layers is provided with a core 10 knitted from comparatively heavy or coarse wire or metal ribbon and an outer layer or layers 11, 12 knitted from light or fine wire or metal ribbon. The knitted loops of the core and the covering layers are arranged longitudinally as described in Specification 548,809 so that sliding between the layers and core is permitted. The fine wires or ribbons constituting the outer layers are closely knit, and the coarse wires or ribbon forming the core are knitted with large loops providing space for holding lubricant such as oil, grease or graphite. Textile yarns may be knitted with the wire, or absorbent material may be interlaid with the layers of knitted wire fabric. A cover 15 in the form of a tubular knitted sleeve of wire or wire and textile yarns may be provided.
Patent GB-776092-A (GB)
Title: Method and apparatus for preserving products in sealed containers
IPC: B65B55/06
Filed: 1955-04-18
Abstract: 776,092. Preserving food, &c. DOLE ENGINEERING CO., J. April 18, 1955 [May 3, 1954, No. 11147/55. Class 49 In canning products, particularly foods such as orange juice and milk, in an enclosure which is open to the atmosphere, through which a continuous flow of gas at a temperature substantially in excess of 212‹F. is passed, and which comprises successively a zone whereat unfilled containers are sterilized by heating, a zone whereat pre-sterilized and cool product is filled into the sterilized containers, and a zone whereat sterilized covers are applied to the filled containers, the unfilled containers are cooled by sterile fluid at the entrance to the filling zone. With the apparatus of Figs. 2 and 4, the container sterilizing section 2, through which the empty containers are conveyed, is heated to 350-500‹F. by steam from orifices 4 and combustion gas from a burner 24; after sterilization in this manner the cans pass through a section 5 where they are cooled by being sprayed, on the outside only, with cooled, sterile water from nozzles 38 and 39; the cans then pass under a filler 6<SP>1</SP> to receive charges of sterilized product cooled to 80‹F.; and the filled containers then pass to a section 15, where sterilized covers from a section. 17 are applied. Super heated steam distributers 12, 20, 22 are provided for preliminary sterilization of the apparatus, and sterile conditions are then maintained by continuous introduction of sterile gas at 13<SP>1</SP> and at 27.
Patent GB-506453-A (GB)
Title: All-steel supports for mine roadways, under ground air-raid shelters and like miningoperations
IPC: E21D11/15
Filed: 1938-04-12
Abstract: 506,453. Lining mine - roadways, shelters, &c. RICHARDS, F. April 12, 1938; No. 11190. [Class 85] Relates to a lining for mine-roadways, underground air:raid shelters, and like constructions comprising plurality of spaced and strutted steel arches 1 having the spaces between adjacent arches filled in by sheetsteel panels 4. According to the invention, each of the spaces between adjacent arches is filled in by a panel which is set either between the webs of the arches as shown in Fig. 2 or with its edges disposed immediately over the backs of the arches as shown in Fig. 7. is arcuately bent to inverted-U-form, and is formed either by a single sheet or a number of rigidly -connected sheets, the single sheet, or each of the rigidly connected sheets, being arranged to extend continuously between adjacent arches and being of greater dimension in the direction of curvature of the arches than in the longitudinal direction of the construction. The arches 1, which may be of I-section and formed either of a single length or. of a number of jointed pieces, are provided with slots 2 in the webs for the reception of the reduced ends of longitudinal tie-bars. The panels 4 may be of flat or corrugated form, and, in the latter case, the corrugations may be of flattened-trough shape and of such a depth as to permit the panels to fit between the tie-bars and either the inner or outer flanges of the arches. The sheets of which a panel is formed may be connected by riveting, welding or bolting. In the case when the sheets are placed on the outside of the arches, the adjacent edges may overlap, as shown in Fig. 7. The lining may be disposed in a trench and subsequently covered over with soil. Specification 369.869, [Group X), is referred to.
Patent GB-597900-A (GB)
Title: Improvements in or relating to electrical contact suspension devices for lamps or the like
IPC: F21V21/38
Filed: 1945-05-03
Abstract: 597,900. Suspending lamps. ENGINEERING & LIGHTING EQUIPMENT CO., Ltd, BIRD, W., and DOWDELL, A. T. May 3, 1945, No. 11209. [Class 78(v)] In an electrical contact device for lamps or the like of the type having upper and lower parts, the upper part being provided with a hook-like suspension member rigidly mounted on an overhead support and the lower part being suspended from a rope and adapted to be raised into engagement with the hook member and suspended therefrom, electrical contact between the two parts being effected automatically during the lifting movement, the projecting member on the lower part comprises a lever K which is pivotally mounted on a, bracket K<1> on the lower part and has its foot supported by a spring or springs M whereby it is normally held in a position slightly inclined to the vertical. The upper fixed member of . the suspensionÀcomprises a plate F on which are mounted electrical contacts H,. a downwardly projecting central portion G together with a guide portion R having a slot S and provided with a projection P and a recessed cam Q. The lever K is pivoted on a hanging portion which is-provided with a central guide 0 and electrical contacts H1. A wire rope B pulls the guide 0 into the portion G and a, projection L on the hanging part enters the slot S and so positions the two portions that electrical contact is made and the pivoted arm K is brought into contact with the lower extremity of the cam Q. Further movement of the lower portion in an upward direction causes the lever K to travel round the surface of the cam Q until it is stopped by the projection P, the hanging portion is then lowered and the arm K is guided into a recess in the cam Q which takes the whole weight of the suspended article. A fresh upward movement causes the top of the arm K to pass on the other side of the stop P and a lowering movement causes it to ride over the top face of the cam Q with complete release of the device.
Patent GB-892486-A (GB)
Title: Improvements relating to step-by-step motors for driving electromagnetic counting devices
Inventor: LEWIS JACK WAKE
IPC: G06M1/10
Filed: 1957-04-05
Abstract: 892,486. Electric motors. ASTARON ELECTRONICS Ltd. April 8, 1958 [April 5, 1957], No. 11223/57. Class 35. A step-by-step motor which may be used in a counting device has interdigitated stator poles 5, 10 excited by impulses to be counted, and a permanently magnetized rotor 19 having poles of opposite polarities spaced so as to be opposite stator poles of opposite polarity, and at least one of which is provided with a leading toe 22a to ensure movement in a preferred direction on energization of the stator winding. The rotor may have any number of limbs, but in the form shown in Fig. 2, four are provided, 22 and 24 being of one polarity, and 23 and 25 being of the opposite polarity. The width of the poles is preferably slightly less than the stator pole width. The toes 22a, 25a form pole-faces whose width is greater than a stator pole-pitch by 10-25%, and spans the gap between adjacent poles in the rest position shown. When successive impulses of opposite polarity are fed to the stator coil, the rotor is successively repelled from its rest position opposite one set of poles and attracted to the next pole position, a nylon ratchet and spring pawl (not shown) serving to damp oscillations. When the impulses to be counted all have the same polarity, they may be alternately reversed or fed to oppositely wound stator coils by switching. Alternatively the stator poles may be biased by a continuously energized coil which is over-ridden when impulses are fed to another coil, thus producing successive reversals of stator polarity, the rotor advancing two steps per impulse. In the modified rotor shown in Fig. 4, the poles 29a, 29b, 29c of one polarity and poles 30a, 30b, 30c of opposite polarity are each wide enough to face two adjacent stator poles and, to promote clockwise rotation, are chamfered away from the stator and also axially tapered in the same direction.
Patent GB-550087-A (GB)
Title: Improvements relating to automatic chain tensioning devices
IPC: F16H7/08
Filed: 1941-09-02
Abstract: 550,087. Chain-tensioning devices. RENOLD & COVENTRY CHAIN CO., Ltd., and COULSON, R. Sept. 2, 1941, No. 11232. [Class 80 (i)] Relates to automatic chain tensioning devices in which the chain passes over a sprocket rotatable on a hub eccentrically mounted on a spindle, the hub being urged in a direction to tighten the belt by a spring, reverse movement being prevented by a ratchet and pawl device. According to the invention, a frictional damper opposes rotation of the hub, the damping effect being increased when the hub moves in a direction to relieve tension in the chain. The sprocket 16 is freely mounted on a hub 12 eccentrically mounted on a fixed spindle 10, a spindle 24 in the hub carrying a pawl 22 adapted to engage teeth on a ratchet 18 on a mounting 20 carrying the spindle. The pin 24 serves as an anchorage for a coil spring 26, the other end of which is attached to the spindle. Between one end of the hub and the spring is arranged a multi-plate brake, alternate plates 28 of which engage the pin 24, the others having a projection engaging a recess 32 in the spindle. The outermost plate 33 is held on the spindle by a U-shaped washer 34 engaging a groove 36 and lying in a depression in the plate 33. The plates are pressed together by two springs 40. To obtain the braking movement, the ratchet 18 is mounted on its support with slight relative rotary movement and is formed with three conical recesses engaging the conical ends of pegs 42 secured to the mount 20, these ends acting as cams. When, therefore, the ratchet tends to move backwards under the action of the pawl 22, the ratchet and hub are moved axially to the left to press the plates 28, 30 together. A forced oil-feed for lubrication may be provided through a bore 37 in the spindle 10 and radial passage 41 leading to the chain wheel. The oil also lubricates the eccentric hub and passes to the brake plates. The pawl has a tail-piece which projects, under the action of a spring, beyond the surface of the hub 12 so that if the chain wheel is displaced laterally its bore may be utilized to hold the pawl clear of the ratchet teeth and thus facilitate assembly.
Patent GB-1403941-A (GB)
Title: Detergent and cleaning compositions
IPC: C11D3/37
Filed: 1973-03-08
Abstract: 1403941 Hydrolysis of chlorine-containing copolymers HOECHST AG 8 March 1973 [16 March 1972] 11328/73 Heading C3P [Also in Division C5] Builders used in detergent and cleaning compositions are formed by hydrolysing a copolymer containing 5-60 wt. per cent halogen therein and comprising units of formulae and in which X, Y and Z are hydrogen or halogen, at least one of them being halogen, R is a carboxyhalide, carboxylic, ester or nitrile group, or two Rs together form an anhydride group, and the mole fraction m is a number greater than zero and smaller than one. The hydrolysis effects transformation of halogen groups to hydroxyl groups and of R groups to carboxyl (unless R is already carboxyl), so that the resulting product contains both hydroxy and carboxyl groups, which may be partially lactonized. Examples describe the hydrolysis with water, and subsequent neutralization with sodium carbonate, of copolymers of alpha-chloro-acrylic acid with either maleic anhydride or chloromaleic anhydride.
Patent GB-1097574-A (GB)
Title: Improvements in or relating to temperature controlled crystal ovens
IPC: G05D23/24
Filed: 1965-03-17
Abstract: 1,097,574. Crystal ovens. TOKYO DENPA CO. Ltd. March 17, 1965 [March 18, 1964 (2); March 19, 1964], No. 11334/65. Heading H1E. [Also in Division G3] A temperature - controlled crystal oven includes a crystal vibrator holder, and both a heating resistor and also a control element having a positive temperature coefficient of resistance, the resistance/ temperature characteristic of the element being substantially logarithmic in the ambient temperature range but exhibiting a sharp increase at a higher temperature. Oven 5, Fig. 1, houses a crystal vibrator mounting 3, a heating resistor 2 connected in the collector circuit of a transistor 6, and a positive temperature characteristic thermistor 1, which exhibits a sudden rise of resistance with temperature in the neighbourhood of 65‹ C. (Fig. 5, not shown) and which is connected in the emitter circuit of the transistor, the latter acting as a current amplifier. The oven operates at a mean temperature determined by the thermistor characteristic. In another embodiment (Fig. 3, not shown), the provision of a Zener diode and a resistor in the base-emitter circuit permits optimum adjustment of the control circuit, and in a further embodiment (Fig. 8, not shown) a second transistor amplifier is employed to increase the controllable power input to the heater. The oven (Fig. 9, not shown) is in the form of an evacuated, silvered vessel, the heating resistor being wound around the cylindrical crystal holder, to one end of which the thermistor is fixed.
Patent GB-1423306-A (GB)
Title: Strapping machines
IPC: B65B13/32
Filed: 1973-03-08
Abstract: 1423306 Strapping machine F A POWER Ltd 28 Feb 1974 [8 March 1973] 11375/73 Heading B8C In a strapping machine having means for feeding a plastics band in a loop around an article, means for tensioning the band about the article and means for heating overlapping portions of the band, a reciprocable plunger 21 co-operates with a cutting plate 34 to sever the loop from the stock of band material at a location which will be at the edge of a heat seal joint, after heating of the overlapping portions and prior to compression, by the plunger 21, of the hot overlapping portions to form the heat seal joint. The plunger 21 is moved to compress the overlapping portions by a cam (16, Fig. 1, not shown) or a piston and cylinder assembly (60, Fig. 6, not shown) acting through a member 13. A spring 38 provides a lost motion connection between the plunger 21 and the member 13. A track spacer (46, Fig. 3, not shown) which can occupy a position between the overlapping portions of the band as the band is fed, is retractable from this position to allow a heater plate 49 to move between the overlapping portions. The plunger 21 presses the overlapping band portions against the heater plate 49. The plunger 21 has a rectangular transverse cross-section and includes two opposite cutting edges at each of its ends.
Patent GB-1383366-A (GB)
Title: Illuminating systems
IPC: G03B27/54
Filed: 1972-03-10
Abstract: 1383366 Lamps ING C OLIVETTI & C SpA 10 March 1972 [12 March 1971] 11394/72 Heading F4R A lamp comprises a light source disposed at the common focus 16 of two families of confocal ellipses the other foci of the families being spaced apart at 18, 18<SP>1</SP> on an objective plane to be illuminated, a first set of reflecting segments 48, 50 ... 60 forming portions of one of the families being disposed about the source forwardly thereof to reflect light to the focus 18<SP>1</SP> and a second set of reflecting segments 49, 51 ... 59 forming portions of the other family being disposed about the source rearwardly thereof to reflect light to the focus 18, the light reflected by the second set of segments passing between the segments of the first set. Similar sets of segments 48<SP>1</SP>-60<SP>1</SP> and 49<SP>1</SP>-59<SP>1</SP> forming portions of the other and the one family, respectively, are also disposed about the source, and a reflector 62 consisting of a circular section or a pair of elliptical sections is disposed behind the source. The source may be a point or a tube and the reflectors are ellipsoidal or cylindrical as appropriate. The segments may be formed as a unitary structure on the surface of a clear glass or plastics block or, in the case of cylindrical segments, may consist of thin aluminium sheets fitted in appropriately shaped slots in a pair of parallel plates.
Patent GB-733454-A (GB)
Title: Improvements in fluorescent electric-light fittings
Inventor: DERRICK KENNETH CAMPBELL
IPC: F21V17/00
Filed: 1953-04-24
Abstract: 733,454. Lighting fittings. COOMBS, J. H., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. April 23, 1954 [April 24, 1953], No. 11399/53. Classes 75 (3) and 75 (4). In a fluorescent electric lighting fitting comprising a reflector 3 and a box 1 secured thereto and housing control means for the fluorescent tube, the box has apertures at opposite ends for the entry and exit of a cable 5 and also houses clamping means to which a catenary or reinforcing core 8 of the cable is secured and connectors for connecting the conductors of the cable to the fitting. The clamping means comprises two flat plates 21, 22 through which a stud 11 passes freely. The lower plate 22 rests against a transverse member 13 secured to the end of the stud and the upper plate 21 is forced downwardly by a nut 23 on the stud. The reinforcing core is formed into a V-bight between the plates by means of wings 25 on the ends of the upper plate 21 and a peg extending from the upper plate through a hole in the lower plate. The stud 11 also serves to support the entire fitting and for this purpose its upper end is hooked and the transverse member 13 on its lower end is adapted to engage removably under lateral extensions in a member 15 extending centrally across the box 1. The box is closed by a cover 2 having a hole through which the stud 11 extends, a nut 19 on the stud clamping the cover to the box. The cable entry and exit eomprise spouts 9, 10 formed on the joint line of the box and cover. The Provisional Specification describes a construction in which the stud extends through an aperture in the floor of the box and is secured thereto by clamping nuts and the clamping plates are disposed between a pair of clamping nuts on the stud. Specification 733,455 is referred to.
Patent GB-1528282-A (GB)
Title: Loading ramps for vehicles
IPC: B60P1/43
Filed: 1977-03-09
Abstract: 1528282 Vehicle loading ramp CRANE FRUEHAUF Ltd 9 March 1977 [22 March 1976] 11408/76 Heading B8E A vehicle has a ramp 2 normally stored in a frame 1 on angles 21. An end cross member 22 has lugs 24 housing a cross bar which can be lodged in upper and lower positions. The ramp has end hooks 27 having upper and lower recesses 28a, 28b. To use the ramp it is withdrawn until the recess 28b engages the bar 26 which is in its lower position. If the ramp is now lifted the bar 26 is moved to its upper position where it it is in engagement with the upper recess 28a so that the ramp will be level with the vehicle load platform.
Patent GB-903545-A (GB)
Title: Improvements relating to dynamo electric machines
Inventor: HIRST WALLACE
IPC: H02K13/14
Filed: 1960-03-31
Abstract: 903,545. Improving commutation in D.C. machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 28, 1961 [March 31, 1960], No. 11456/60. Class 35. Sparking at the trailing edge of brushes in D.C. machines, particularly railway motors, is reduced by the provision of a discharge path through an auxiliary brush B2 connected through a resistor R1, and if desired, a condenser C1. For reversible machines, two such discharge paths, one to be connected for each sense of rotation, are provided. The commutator segments may be spaced by inert conducting segments of equal width to the trailing auxiliary brushes. The auxiliary brushes may run on auxiliary commutator segments 1A, 2A, 3A, &c., which may be in line with the main segments, as shown in Fig. 4, or displaced. They may be separated by inert segments.