baber/WOPTO huggingface dataset:
Patent GB-512593-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1938-10-14
Abstract: 512,593. Vacuum cleaners. HOOVER, Ltd. (Hoover Co.) Oct. 14, 1938, No. 29774. [Class 8(i)] In a vacuum cleaner having a casing which includes a main nozzle for on-the-floor cleaning, and means whereby the cleaner can be converted for use with either a suction tool or a blowing tool, mechanism is provided whereby the nozzle is automatically raised by bringing into use the appropriate tool without preliminary operation of any converter member associated with the tool not in use. In one form, Fig. 4, wherein a pivoted converter member controls an auxiliary suction-opening and lifts the main suction-nozzle 2 at the same time as described in Specification 476,708, insertion of a converter tool into a blower opening opens a flap-valve 19 the spindle 19a of which carries a crank 19b connected by links 24, 25 to a lever 26 adapted to actuate the wheel-lowering device 17 and lift the main suction-nozzle 2. A projection on the tool at the same time engages a cam groove on the shaft of a valve which opens the suction chamber to the blower opening and closes the passage between the chamber and the dust receptacle. In a modification, Fig. 11, a horizontally-pivoted flap-valve 27 is used at the blower opening and is formed with a cam part 27b adapted to actuate levers 31, 30 and so cause the wheels to be lowered. In another construction, Fig. 16, in order to raise the main nozzle, the rear wheels 5 are raised relatively to the casing ; they are held in their normal position by a spring-pressed arm 36 engaging an extension 33a of the wheel brackets 33. Rotation of a converter member 11 controlling the auxiliary suction opening causes an arm 11a thereon to engage and move the arm 36 so that the brackets 33 can rise under the action of a spring 35. The blower device 40 when employed, is attached to the opening to which the dust bag is usually attached. A lug 42 on the fitting 40 is adapted to move a rod 43 and lever 44 when the fitting is rotated into fixing position, and the lever 44 engages a pin 46 on the arm 36 so as to allow the wheels 5 to rise. A converter member of the push-in type may be used both for the suction and blower connections.
Patent GB-1355194-A (GB)
Title: Tractor and semi-trailer combinations
IPC: B60S9/02
Filed: 1971-06-25
Abstract: 1355194 Semi-trailer landing gear; fifth wheels KALMAR VERKSTADS AB 25 June 1971 [2 July 1970] 29810/71 Headings B7J and B7T In a tractor, semi-trailer combination, the semi-trailer [landing gear or] support leg structure 3 comprises two support legs 10 fixedly mounted on a shaft 11 pivotally mounted on the front of the semi-trailer and means, in the form of a pneumatic lifting cylinders 20 connected by levers 22 to the shaft, for rearwardly pivoting the legs from a ground engaging position, shown dotted in Fig. 1, to a rest position, shown solid in Fig. 1, when the semitrailer is respectively disconnected and connected to a pulling tractor; there being means, in the form of tension springs 18 connected to the shaft by levers 15, for pivoting the legs to their support position and means on the tractor, in the form of a vertically displaceable fifth wheel 1, for raising the front of the semi-trailer to allow movement of the legs between the said positions when relieved of the semi-trailer weight. To pivot the legs to their rest position the fifth wheel on the tractor is engaged on the semi-trailer and the latter raised thereby, the cylinders 20 are then energized with compressed air thus turning the shaft 11 as the piston rods are moved and the legs are pivoted, this action also tensions the springs 18. A locking device 30 to 33 installed to lock each leg in its ground engaging position and is unlockable by a respective piston and cylinder 34. The pneumatic circuit for controlling the cylinders 20 is connectible to a compressed air source on the tractor when the trailer is coupled thereto, and is described with reference to Fig. 4 (not shown).
Patent GB-410811-A (GB)
Title: Improvements in pumps
IPC: F04B49/08
Filed: 1932-10-25
Abstract: 410,811. Reciprocating pumps. WEIR, Ltd., G. & J., and HILLIER, H., Holm Foundry, Cathcart, Glasgow. Oct. 25, 1932, Nos. 29820/32, 29822/32, and 29048/33. [Class 102 (i).] In a pump, e.g. a boiler feed-pump, of the type in which the discharge is varied by altering the phase relationship of two shafts 8, 8<a>, Fig. 1, driving pairs of plungers 7, 7<a> of equal displacement and working in a common chamber 1, the secondary motor 21, which effects the alteration of the phase relationship, is controlled both by the discharge pressure of the pump and by means acting simultaneously with the relative movement of the shafts 8, 8<a>. The shafts may be driven by separate motors, or by a single A.C. motor 9, the shaft 8 being driven through gearing 10, 11 of fixed ratio, while the shaft 8<a> is driven through epicyclic gearing 12-16 and gear wheels 17, 18. The casing 20 of the epicyclic gearing is rotatable by the auxiliary motor 21. The gearing may be such that the shafts 8, 8<a> rotate at the same speed when the casing 20 is stationary, or when the casing is rotating at a certain speed. When the pressure in the discharge pipe 6 rises, the pressure depresses a piston 24 carrying a contact 28 moving over a resistance 29 and thus either starts the motor 21, or alters its speed; so as to alter the position of the shaft 8a relative to the shaft 8. The shafts 8, 8<a> drive a differential shaft through gearing 30, 31, 30<a>, 31<a> and the differential casing 35 carries a cam 36 acting on a rod 37 connected to the resistance 29, so that the resistance is lowered and the contact 28 is returned to the equilibrium position. The pump then operates at reduced output and increased pressure. In a modification, Fig. 3, the contact 28 is carried by a lever, one end of which is connected to the rod 26 of the piston 24 exposed to the discharge pressure, while the other end is connected to the core of a solenoid 38 arranged in the circuit of the motor which operates the epicyclic gearing. When the piston 24 lowers one end of the lever the current energizes the solenoid 38 and raises the other end of the lever, thus returning the contact 28 to the equilibrium position. In a further modification, Fig. 4, a motor 41 in the circuit of the motor which operates the epicyclic gearing operates through gear wheels 43, 44 a cam 42 which varies the loading of the spring 27 acting on the piston 24. On decrease of discharge pressure the piston 24 rises and the cam then lowers the washer 40 on which the spring 27 abuts. The contact 28 is thus returned to the equilibrium position and the pump operates at increased output and reduced pressure. In the arrangement shown in Fig. 7, the loading of the spring 27 is varied by the auxiliary motor 21 through gearing 45, 46, 47. In this arrangement also, both the shafts 8, 8<a> are driven through epicyclic gearing. The two gear casings 20, 20<a> are geared together and are moved in opposite directions by the motor 21. Specifications 336,810 and 337,205, [both in Class 102 (i)], are referred to.
Patent GB-691245-A (GB)
Title: Improvements in direct current power supply systems
IPC: B05B5/08
Filed: 1949-11-22
Abstract: 691,245. Protective cut-out arrangements. GENERAL MOTORS CORPORATION. Nov. 22, 1949 [Dec. 1, 1948], No. 29821/49. Class 38 (v) A direct current power supply system comprises an electronic oscillator adapted to cease the generation of oscillations upon excessive loading of its tuned circuit, a relay in the plate circuit of the oscillator adapted on the passage of plate current to deenergise said oscillator, and a rectifier circuit adapted to be connected to said apparatus and coupled to said tuned circuit and responsive on the passage of excess currents in said rectifier circuit to load said tuned circuit thus causing cessation of the generation of oscillations with resultant flow of plate current and the actuation of said relay to de-energise said oscillator. Referring to the drawing, an alternating current source 141 is connected across transformer winding 82 whose centre-tapped secondary 84 produces an alternating plate voltage for tubes 86, 88 which form a push-pull oscillator with common output circuit of condenser 90 and inductance 92, which is fitted to provide a feed-back voltage to grids of tubes 86, 88 in condensers 94 and 96 respectively to produce self oscillation. Condenser 98 and resistance 100 form a self-biasing circuit forthe grids of these two tubes. Of the lifter coils 102 and 104, the latter acts as overload relay 106. The output circuit 90, 92 has a resonant frequency of several kilocycles, and the critically coupled coil 108 and condenser 110 have the same resonant frequency. The rectifier 112 connected to the high voltage sid of the circuit supplies a steady high voltage to the contact 31. Under normal operating conditions the current is of the order of a few milliamperes, but under short circuiting conditions sparking may occur and consequent loading of the secondary tuned circuit 108, 110 causes a loading of the tuned circuit 90, 92 and stops oscillation. The tubes 86, 88 then pass a current large enough to energise the manually reset relay 106. This de-energises the oscillator circuit and thus quenches the arc formed at the short circuit.
Patent GB-264971-A (GB)
Title: Improvements relating to draught excluders for doors and the like
IPC: E06B7/20
Filed: 1925-11-26
Abstract: 264,971. Bolt, W. H., Garner, W. C., and Shuttleworth, F. Nov. 26, 1925. Draught - excluders. - A sliding bar draught-excluder for the bottom of a door, &c., is housed in a metal casing A in the grooved bottom edge of the door so as to be invisible. The excluder is depressed on to the floor on closing the door by an adjustable spring - pressed plunger c<9> which engages the hinge post and is operatively connected by links c<3>, c<2>, to a rod c supported by and connected to the excluder by parallel links c, c'. The excluder stip is guided at one end by an upright b' attached thereto and sliding between rollers b<2>. A second spring c<10> may be provided to act on the end of the rod C. The excluder strip may consist of a strip of rubber, felt, or held in a metal clip.
Patent GB-721986-A (GB)
Title: Improvements relating to lifting jacks for motor vehicles
Inventor: COLLINS AUSTIN
IPC: B66F3/08
Filed: 1952-11-27
Abstract: 721,986. Screw jacks. PRIMA INDUSTRIES, Ltd. Nov. 27, 1953 [Nov. 27, 1952], No. 30022/52. Class 78 (3). A vehicle jack has a lifting crutch secured to the lower end of an axially movable screw which engages a non-traversable nut mounted at the apex of a bipod support. The crutch comprises a spigot adapted to engage any one of a number of sockets on the vehicle. As shown in Fig. 2, the spigot 17 is pivoted to an annulus 16, loosely mounted on the screw 14 between collars 141, and having a projection 161 which slides in a slot 151 in a tube 15 secured between a ground engaging plate 13 and a plate 11; the legs 10 of the bipod being also secured to plates 11, 13. A screw-engaging nut 12 is welded to plate 11, and the screw is rotated by a wheel brace 18 engaging a hexagonal head 142. The spigot 17 is provided with an abutment pin 171 which limits its upward movement. In the modification shown in Fig. 5 the legs 10 are pivoted to plate 11 and are attached to the lower end of tube 15 by toggle links 132. In another modification, Fig. 4 (not shown) the plate 13 is again dispensed with and the legs 10, which are rigidly connected to plate 11, are connected to the lower end of tube 15 by rigid horizontal struts. In a further modification, Fig. 6 (not shown), the screw is rigidly secured to the annulus 16 and is thus held from rotation; lifting being effected by turning the nut 12 by either a ratchet spanner or bevel gearing.
Patent GB-175957-A (GB)
Title: Improvements in or relating to speedometers
IPC: G01P3/495
Filed: 1921-11-10
Abstract: 175,957. Deuta-Werke vorm. Deutsche Tachometerwerke Ges. Feb. 19, 1921, [Convention date]. Electric and magnetic speed indicators; registering distance upon counters. - In eddy-current speed indicators having trip and total distance registers driven from an annular worm on the face of the rotary magnet 1, the registers 15, 19 are carried by the dial-plate 10 so as to be readily removable from the front, together with the speedsensitive member, without disturbing the magnet and other parts. The worm is formed on the narrow flange of a ring 7 and gears with a worm-wheel 8 on a shaft 9 having a worm 13 driving the register 15. A second worm-wheel and shaft 9 may be employed for driving the register 19, which may be zeroized in the known manner, but preferably it is driven by a pawl 17 and ratchet-wheel from an eccentric 16 on the shaft of the register 15. The shaft 9 is supported by a bearing-bracket 12 adjustable vertically and to an inclined position on a supporting- bracket 11.
Patent GB-1025593-A (GB)
Title: Improvements in and relating to the shaping of metal by pressure
IPC: B21C25/00
Filed: 1963-07-29
Abstract: 1,025,593. Extruding; forging. BALDWIN-LIMA-HAMILTON CORPORATION. July 29, 1963 [July 27, 1962], No. 30044/63. Headings B3H and B3P. In the flow deformation of a metal billet, particularly by extrusion, there is provided in the confining surfaces a peripheral zone of low pressure 198 to which a fluid is admitted to treat the flowing metal. The billet 192 is extruded between a mandrel 211 and die orifice 197 to form a tube 206. The mandrel may act to pierce a solid billet and may be integral with or separate from the ram. Low pressure zones such as 198 and 204 are provided in the die entry surface and the container wall 191 and supplied with fluid through duct 205. A low pressure zone 212 is also provided on the mandrel 211 and supplied with fluid through ducts 215, 216. The fluid may be a lubricant, coolant or an insulating medium; examples given are powdered or flaked graphite, castor oil, powdered glass, chlorides of borax or barium or sodium; fluorides of barium or cadmium or cerium or chromium, and gases containing vaporized lubricants. One type of fluid may be used as a lubricant and after extrusion a different fluid is used to clean the working surfaces. The fluid is fed by a pump 104, Fig. 7 (not shown), which may be controlled by a timer. A valve may be incorporated in the ducts leading to the low pressure zones. The press ram 219 has a dummy block 195 and is actuated by a hydraulic cylinder 8, Fig. 1 (not shown). Run-out guides 12, 14, Fig. 1 (not. shown) are provided for the extruded product which may be tubular or solid. Various examples of dies and container bores with low pressure zones are described. In another embodiment, Fig. 11 (not shown), applied to backward extrusion, a hollow ram carries the die which has a low pressure annular zone in its entry surface. Reference is made to the hot extrusion of steel, impact extrusion, forging, punching, and explosive forming.
Patent GB-1397521-A (GB)
Title: Method for knitting and preshrinking knit fabrics in accordance with predetermined comfort levels
IPC: D06C21/00
Filed: 1973-06-25
Abstract: 1397521 Shrunk fabrics CLUETT PEABODY & CO Inc 25 June 1973 [10 Oct 1972] 30047/73 Heading A3V [Also in Division Dl] In the production of knitted garments having a predetermined comfort level as described in Specification 1388755, prior to converting the knitted fabric into a garment, the fabric is stretched transversely and is passed longitudinally into a compressive shrinking unit whilst in the transversely stretched condition, the amount of stretching compensating for the loss of fabric widthwise during shrinking.
Patent GB-1269952-A (GB)
Title: Improvements relating to a method of rivetting
Inventor: LUFF GRAHAM OLIVER
IPC: B21J15/04
Filed: 1968-07-02
Abstract: 1,269,952. Riveting. BIFURCATED ENG. Ltd. 1 July, 1969 [2 July, 1968; 13 June, 1969 (2)], Nos. 31458/68, 30078/69 and 30079/69. Heading B3U. [Also in Division F2] A hollow rivet having a blind bore is set by compressing a resilient plug 16 positioned within the bore. The plug 16 is of rubber or plastics and is compressed by an anvil 17. The rivet has a rounded or countersunk head and may have an extended shank (8) (Fig. 1, not shown), which is externally threaded to receive a nut (9). In another embodiment, a headless rivet is set on both sides of the workpiece by using a longer plug 16.
Patent GB-791299-A (GB)
Title: Improvements in and relating to distilling plant for the preparation of alcohol
IPC: B01D3/00
Filed: 1955-10-21
Abstract: <PICT:0791299/III/1> In a plant for the distillation of alcoholic liquors, such as fermented wash, wherein two analysers (i.e. wash columns) 7, 10 are employed, the liquor being fed to them in parallel, and wherein one of the analysers is operated at higher pressure than the other so that the vapours from the analyser 7 at higher pressure can be used to heat the other analyser 10; the upper part of this low-pressure analyser 10 is used as a degassing section 9, the vapours from the top of which are passed to a separating column 25 for elimination of volatile impurities and recovery of alcohol.  The plant also comprises a rectifying column 19 and a dehydrating column 31 assembled as a composite column but separated by an imperforate plate 30.  Fermented wash containing about 7 per cent alcohol is fed from tank 1 via pipe 2 to condenser 3, where it is preheated to about 147 DEG  F. by reflux vapours.  The wash is next passed through pipe 4 to heat exchanger 6 where it is heated, by spent wash, to 192 DEG  F.  From preheater 6 the wash is fed in part via pipe 8 to column 7, the rest being passed via pipe 11 to degassing column 9.  Rotameters 12 and 13 are set to ensure that column 7 receives a greater supply of wash than column 9, 10.  Column 7 is heated by steam which is supplied to perforated or closed ring 14, and is operated at a pressure of 10 p.s.i.g.  The vapours from the top of column 7 are passed to calandria 16 which heats the wash circulating from the base of column 10.  Column 9, 10, which may also be heated by steam-coil 17, is operated at a pressure of 2 p.s.i.g. Aqueous alcohol vapour from the head of column 10 is passed via pipe 18 to rectifying column 19.  Highly volatile constituents are withdrawn from the top of column 9, and are conducted to column 25. The aqueous alcoholic condensate discharged from calandria 16 is passed via pipe 20, trap 21, and liquid degasefier 22 into column 19. The vapours from degasefier 22 are passed via pipe 26 into column 25. The "heads" withdrawn from the top of column 25 are taken to storage from condenser 27a, while the alcohol recovered in the base of column 25 is conducted via pipe 29 to column 19. Aqueous alcohol vapour from the top of column 19 is conducted by pipe 32 to condenser 3, and the condensate is refluxed to the column, while the uncondensed vapour passes through pipe 34 into dehydrating column 31.  Glycerine containing a proportion of potassium carbonate is supplied from tank 39 via pipe 38 to the top of column 31.  Absolute alcohol is withdrawn from the system through pipe 37.  The spent liquids from columns 19, 10 and 7 are passed via pipes 45, 46 and 47 respectively to heat-exchanger 6. Aqueous glycerine withdrawn from column 31 through pipe 41 is recovered in the usual way.  Rectified spirit may, if desired, be withdrawn from the upper part of column 19 through pipe 42.
Patent GB-204234-A (GB)
Title: Improvements in or relating to the measurement of the depth of water
IPC: G01S15/12
Filed: 1922-11-06
Abstract: 204,234. Whitcombe, C. P., (Submarine Signal Co.). Nov. 6, 1922. Determining distances acoustically.-Relates to methods of depth-sounding in shallow water in which an echo is timed by comparison with a simultaneous disturbance, and consists in apparatus for producing a momentary change, at regular intervals, in the intensity, pitch, or other characteristic of a continuous sound. The length of the intervals is adjusted so that the echoes and comparison-disturbances reach the sound detector simultaneously, when this length gives a measure of the depth. In the arrangement shown in Fig. 2, an A-C generator A causes the transmitter E to emit a continuous subaqueous sound. The intensity of the sound is periodically increased through the short-circuiting of the resistance r by a segment on a wheel n which is driven by a variable-speed friction gear from the motor M. The speed is varied until each increase of intensity coincides with the echo of its predecessor, when the depth can be read from a scale C associated with the variable gear. Alternatively the periodical shortcircuit may be applied to an element in the tuned circuit of a thermionic oscillator so as to vary the pitch of the sound emitted. In the arrangement shown in Fig. 4, an A.C. generator A affects a telephone receiver h and a subaqueous transmitter E through an intermediary commutator driven by a motor M. The commutator comprises discs N, 0, provided with highresistance wires u, y, co-operating with brushes v, v', which are connected respectively to the receiver h and transmitter E. The wires are wound in single turns with one end disconnected, so that each of the circuits experiences a change of intensity in each revolution. The angular relation of the brushes v, v<1> can be adjusted until the sound in the receiver h coincides with that which reaches the receiver h<1> when the echo of the previous sound strikes the detector F. The telephone receivers may be replaced by visual or other indicators.
Patent GB-378713-A (GB)
Title: Improvements in bearings
IPC: F16C17/03
Filed: 1931-11-04
Abstract: 378,713. Tilting-pad bearings. AKTIEBOLAGET NOMY, 2, Norrmalmstorg, Stockholm. Nov. 4, 1931, No. 30573. Convention date, Nov. 4, 1930. [Class 12 (i).] Relates to bearings of the type provided with bearing blocks 3 rotating with a supporting member 2 and adapted for limited peripheral displacement relatively to the member 2 so as to take up a tilted position upon one or other of two peripherally spaced surfaces formed on the supporting member 2 according to the direction of rotation to provide wedgeshaped oil films between the blocks 3 and a bearing race 14, some or all of the blocks 3 being free to be displaced peripherally as aforesaid independently of the others. According to the invention members are arranged to co-operate with the blocks to prevent undesired peripheral displacement of the blocks due to their own weight during their rotation. As shown in Figs. 1 and 3, opposite blocks, e.g. 5, 9, are connected by divided rings 17 accommodated in grooves 18 in the member 2. The grooves 18 may be formed in the race 14 and the rings 17 may be in one piece. In a modification, the members 17 are located in circumferential grooves formed in ribs at the centre portion of the member 2. As shown in Fig. 11, the member 2 has fixed thereto resilient members 24 which frictionally engage the blocks 3 to prevent undesired displacement thereof. In a modification the members 24, Fig. 12, setting up the frictional forces are mounted on the race 14 and are pulled together by springs 29. The members 24 may be in segments. In another modification some but not all of the blocks 3 are interconnected in dovetail arrangement.