baber/WOPTO huggingface dataset:
Patent GB-1493055-A (GB)
Title: Lifting jack
IPC: B66F1/00
Filed: 1975-01-27
Abstract: 1493055 Screw jacks ALFRED TEVES GmbH 27 Jan 1975 [28 Jan 1974] 3429/75 Heading B8J A lifting jack includes a guide housing 1 having a nut (4), Fig. 1 (not shown), secured against twisting, carrying a jack arm (5) and axially movable by means of a threaded lifting spindle 3 with which it is engaged. A spur gear 6 is rigidly connected to the spindle 3 and at least partly projects through a slot 14 in the housing 1 to engage a pinion 15 arranged outside the housing 1 and rotatable by a crank handle 16.
Patent GB-607798-A (GB)
Title: Improvements in or relating to frequency-control circuits
IPC: H03J7/04
Filed: 1946-02-05
Abstract: 607,798. Automatic control systems. PHILIPS LAMPS, Ltd. Feb. 5, 1946, No. 3573. Convention date, Feb. 8, 1945. [Class 38 (iv)] [Also in Group XL (c)] Frequency.-The frequency of a valve oscillator is maintained constant by applying a correcting voltage derived from a frequency discriminator to the grid of a discharge tube operating as a variable impedance in the grid circuit of the oscillator. The valve 1 produces oscillations by virtue of the coupling between the tuned anode circuit 2 and the coil 3 in the grid circuit. The grid leak path comprises a choke coil 7, a resistance 6 and a triode tube 5, a byepass condenser 9 shunting the elements 5, 6. Correcting voltage is applied to the terminals 10 across a resistance 8 to vary the flow of grid current in the valve. The grid condenser 4 has a value much lower than normal, and this condenser together with the internal gridcathode resistance of the valve 1 constitute a network giving a phase-shift which is variable under the control of the correcting voltage, causing a corresponding variation of the wave frequency. The system may be used for keeping the wave frequency constant when keying telegraph transmitters.
Patent GB-251593-A (GB)
Title: Improved means for diminishing vibrations in high-speed vertical shafts applicable to centrifugal machines
IPC: B04B9/12
Filed: 1926-02-08
Abstract: 251,593. Soc. Anon. Ing. Moncalvi & Co. April 29, 1925, [Convention date]. Driving; balancing; oscillations, preventing. - A container G for rotation at high speed is mounted on a shaft A connected to the driving shaft I by a tubular flexible coupling H which shortens under torsion during rotation. The shaft A is carried in bearings B, C which are supported by an elastic member E. A driving pulley L is carried by the shaft I
Patent GB-1097867-A (GB)
Title: Improvements in or relating to combine harvesters
IPC: A01D41/14
Filed: 1965-02-03
Abstract: The main embodiment (Figs. 1, 2, not shown) of this Specification is identical with the embodiment of Fig. 7 of Specification 1,097,864. In a second embodiment (Fig. 3, not shown) the feeler members are resilient strips (98) projecting forwardly of the cutting bar.
Patent GB-176608-A (GB)
Title: Instruments for ascertaining the compass course of a ship
IPC: G01C21/20
Filed: 1921-01-31
Abstract: 176,608. McCrae, J. C. Jan. 31, 1921. Protractors; rulers.-Relates to instruments for use with a chart in order to convert a true course to a compass course and vice versa. One member 2 of a parallel ruler 1, 2 carries a pair of concentric rotatable discs 5, 6, with compass point graduations, adapted to be clamped together with the corresponding graduations separated by an angle equal to the compass error. The member 2 is divided and fitted with a bridge-piece 3 through which passes a pin 7 fixed to the larger disc 5. The smaller disc G, rotatable on this pin, fits into a recess in the disc 5, and is separated by a washer from the underside of the bridge.. piece 3. The threaded end of the pin 7 is fitted with a clamping thumb-nut 10. In using the instrument, the upper edge of the member 1 is set along the course line and the bar 2 is moved until the north and south points on the disc 5 are in line with a meridian on the chart. The true and compass courses are then indicated on the discs 5, 6 respectively opposite a line 11 on the member 2 in line with the centre of the discs.
Patent GB-951123-A (GB)
Title: An electric control system for vehicle direction signalling apparatus
Inventor: DRYER PETER JUNIOR
IPC: B60Q1/42
Filed: 1961-03-15
Abstract: 951,123. Mechanical switches, without quick action; switches held set and freed mechanically. BOYNE PRODUCTS Inc. March 15, 1961, No. 3714/63. Divided out of 951,122. Drawings to Specification. Heading H2B. [Also in Division G4] The Specification is identical with that of Specification 951,122, but the claims are directed to the direction indicator control switch.
Patent GB-759193-A (GB)
Title: A safety valve to prevent the bursting of water containers by frost
IPC: F16L53/00
Filed: 1954-02-09
Abstract: 759,193. Pressure-relieving devices for fluids. MOCKRIDGE, A. H. Feb. 4, 1955 [Feb. 9, 1954], No. 3719/54. Class 135. The bursting of water containers due to freezing of the water is prevented by allowing some of the fluid which is subject to excess pressure due to the freezing to discharge into a subsidiary container filled with a material which, in solution, lowers the freezing point of water. In the practical application of the invention, a subsidiary container filled with salt is closed at the two ends by means of thin diaphragms and projects into the main container so that one of the diaphragms is at the centre thereof. When freezing starts, the inner diaphragm will burst to allow water to pass into the subsidiary container. The resulting solution will lower the freezing point of the water and prevent further freezing. Should, however, the pressure rise still further the outer diaphragm will burst, and the brine will be discharged to the outside air.
Patent GB-607501-A (GB)
Title: Improvements in or relating to electric snap action switches
IPC: H01H1/32
Filed: 1946-02-06
Abstract: 607,501. Snap-action switches. SMART & BROWN (ENGINEERS), Ltd., SPIVEY, W. H., and STEVENS, B. Feb. 6, 1946, No. 3749. [Class 38 (v)] A snap-action switch comprises a slidable actuating member 5, a separate contact-member 8 in a recess 7 in the member 5, and a deadcentre snap-action mechanism, whose actuating part 23 is fitted with play between two walls 11, 12, of the member 8. When the member 5 is slid along the base it bears on the contactmember 8 which in turn bears on the part 23 until the dead-centre is reached, when the latter pushes the contact-member to the contact " make " or " break " position. The member 8 can pivot slightly about sides 9 in the recess 7 and is formed of a metal stamping, co-operating with contacts 15, 16. The deadcentre mechanism comprises rods 19, 20, pivoted at 21, 22 to the base and to the part 23, and surrounded by springs 17. A cover (not shown) retains the parts in position and prevents the entry of dust. The Provisional Specification also refers to Specification 585,310.
Patent GB-933045-A (GB)
Title: Electrical connector assembly
IPC: H01R13/436
Filed: 1962-02-01
Abstract: 933,045. Two-part couplings. AMP Inc. Feb. 1, 1962 [Feb. 4, 1961], No. 3788/62. Class 38 (1). Connectors 3 terminating in sockets 12 are crimped to conductors 9 and are retained in bores 2 through an insulating block 1 by a halfround rod 7 of insulating material which passes through the block 1 at right-angles to the bores 2, and which engages a recess 8 in each connector 3. Wings 15 integral with the connectors 3 engage a slot at the back of the block 1 to ensure that the sockets are assembled with the recesses 8 upwards. The rod 7 may be in two halves.
Patent GB-153509-A (GB)
Title: Improvements in surface apparatus for the transmission of heat
IPC: F28B1/00
Filed: 1920-02-09
Abstract: 153,509. Mather, J. W. Feb. 9, 1920. Straight tubes between headers.-To ensure a more uniform distribution of steam in passing over the tubes in a surface condenser, the cylindrical casing 1 is provided with a steam inlet 2, and outlets 3 for water, and the tubes 4 are arranged so that a tapering passage 5 is provided at each side. The path for the steam is of greater sectional area at the inlet than at the greatest cross-section of the condenser. The tubes may be spaced as described in Specification 151,525.
Patent GB-548117-A (GB)
Title: Improvements in lighting fixtures
IPC: F21S8/02
Filed: 1941-03-24
Abstract: 548,117. Luminairs. RAMBUSCH DECORATING CO. March 24, 1941, No. 3978. Convention date, March 29, 1940. [Classes 75 (ii) and 75 (iv)] A luminair comprises a light source and a downwardly projecting specular reflector symmetrical on opposite sides of a central vertical axis through the light source and receiving substantially all the light emitted from the source in an axial plane and above a horizontal plane at the level of the source, the reflector being composed of angularly contiguous reflecting elliptical zones in said axial plane having a common focal point at the centre of the light source and coincident conjugate focal points in said axial plane and uniformly displaced on opposite sides of the central axis, the axes of the ellipses in which the zones are formed being shorter as the zones approach the central axis. Fig. 6. shows an annular luminair in which the light from a pendant lamp bulb 30 carried by an outlet box 32 impinges on a sheet metal reflector 34 composed of a number of elliptical zones 34a, 34b, 34c, 34d connected by inactive areas 34e, 34f, 34g too steep to intercept direct light. The zones 34a-34d have one focus at the light source and conjugate foci F<SP>1</SP>, F", disposed in a circle. The reflector 34 is connected to the outlet box 32 by a cone 33 and is provided with a screen 36 carrying a flat apertured plate 37 at approximately the level of the foci F<SP>1</SP>, F<SP>11</SP>. A spherical reflector 38, a cylindrical screen 39 and a flat screening disc 40 are supported from the reflector 34 by clips 41. The luminair can be recessed in a ceiling 43. In a modification the reflector supports a translucent bowl having inner and outer diffusing sidewalls connected by a clear crystal-glass horizontal wall through which the reflected rays pass. Alternatively a plastic diffuser having a flat central portion formed with openings for the passage of the reflected rays may be used. Fig. 10, shows a fluorescent tube 60 arranged below a reflecting trough 61 of stepped elliptical contour, the downwardly emitted rays being reflected by a reflector 62 to supplement the light from the upper reflector.
Patent GB-1286162-A (GB)
Title: Improvements relating to feed arrangements for providing a controlled rate of feed of free flowing material to a mixer or mixer-conveyor unit
Inventor: EDWARDS ALBERT
IPC: B22C5/04
Filed: 1970-01-27
Abstract: 1286162 Mixing apparatus BAKER PERKINS Ltd 7 Jan 1971 [27 Jan 1970] 3983/70 Heading B1C [Also in Division B8] A feeding device for free-flowing material (e.g. sand) for a continuous discharge conveyer or a mixer-conveyer having a vane-type stirrer element rotating in a barrel 1, comprises an enclosure 2 at least partly surrounding the barrel and having an inlet 3, means 4 to direct material to one side of the barrel, and an adjustable gate allowing material to flow at a controlled rate through the opening 7 with the barrel. The gate consists of an aperture 6 in a rotatable sleeve 5 surrounding the barrel. In use a permanent head of material may be maintained in the enclosure 2.
Patent GB-607564-A (GB)
Title: Improvements in or relating to the treatment of stored grain
IPC: A01N25/00
Filed: 1946-02-08
Abstract: Grain is treated to exterminate insects and to render it immune to insect infestation by passing through it a stream of benzene hexachloride laden air obtained by bringing a stream of air into contact with an extended surface of benzene hexachloride containing at least 0.5 per cent of the gamma isomer.  In one method a stream of air at 40 DEG C.-50 DEG C. is passed in turbulent flow over trays of crude benzene hexachloride into a vessel charged with infested grain for 1-5 hours.  Specification 573,689, [Group VI], is referred to.
Patent GB-427354-A (GB)
Title: Improvements in locks having long-shoot bolts
IPC: E05B63/00
Filed: 1934-02-07
Abstract: 427,354. Locks. HADLEY, W. D., Sandycroft, Park Road West, Wolverhampton. Feb. 7, 1934, No. 4017. [Class 44] In order to give a long throw to the bolt D of a lock, the key, inserted in hole F, operates a slider B moving parallel to the bolt, and locked in each of its two positions by pivoted levers E, E<1>, E<2> of ordinary type. Movement is communicated from slider to bolt by a lever C pivoted at one end a to the casing, and connected to the bolt by pin and slot d at its other end. The slider makes pin and slot connection b<1> with the lever at a point which may be nearer to the pivot a than to connection d, so that the movement of the bolt is more than double that of the slider. Lever C is cranked at c<1> to lie behind slider B and in front of bolt D.
Patent GB-114040-A (GB)
Title: Improvements in or relating to the Manufacture of Lamp Black.
Inventor: SHEDLOCK JAMES JOHN
IPC: C09C1/48
Filed: 1917-03-21
Abstract: 114,040. Shedlock, J. J. March 21, 1917. Carbon.-In preparing lamp-black, animal or vegetable fat or oil or mineral oil or grease is melted or heated in a tank A by a steam coil B, and is fed through a pipe C and perforated pipe E, into a chamber G heated by a furnace H. Streams of heated air are injected through pipes J' in such quantity as to burn the hydrogen of the oil &c. and liberate the carbon. The products of combustion are withdrawn by a pump and are treated with a liquid such as water, petroleum, tar, &c., to separate the carbon, either by passage through' a chamber M through which a shower of liquid falls, or by passage below baffles Q dipping into liquid.
Patent GB-1211401-A (GB)
Title: A method of producing mixed filaments
IPC: C08L77/00
Filed: 1968-01-26
Abstract: 1,211,401. Mixed polyamide-polyester filaments. KANEGAFUCHI BOSEKI K.K. 26 Jan., 1968 [26 Jan., 1967; 13 Feb., 1967], No. 4156/68. Heading C3R. Mixed filaments are prepared by blending (1) a fibre-forming polyamide, (2) a polyester-ether derived from a carboxylic acid, and optionally (3) a polyester, the amount of polyamide being from 50 to 97% by weight of the total mixture and the weight ratio of polyester to polyesterether being from 0:100 to 95: 5, and spinning and drawing the blend. Suitable polyamides are those containing at least 90 mol. per cent of polycaprolactam or polyhexamethylene adipamide or sebacide and up to 10% derived from another lactam, aminocarboxylic acid or nylon salt. The polyester-ether may be self-condensates of aromatic ,hydroxy acids or their esters, or condensates of aromatic dicarboxylic acids having ether linkages, or esters thereof, with glycols. They may be homo- or co-polyesters. The polyester (3) is preferably a polyethylene terephthalate which may contain up to 10% of different acid or glycol units.
Patent GB-1038941-A (GB)
Title: Improvements in or relating to permutation locks
IPC: E05B37/00
Filed: 1963-02-01
Abstract: 1,038,941. Permutation locks. P. G. MARSHALL, J. R. MARSHALL and B. HAWKE. April 21, 1964 [Feb. 1, 1963], No. 4185/63. Heading E2A. A permutation lock of the type including a plurality of coaxial rotatable elements adapted for individual setting by a single actuating member 16, comprises two discs 32, 33 of different diameters constituting the rotatable elements and mounted concentric with the actuating member, a housing 15 enclosing the discs, the larger of which has a lost-motion connection with the actuating member and also with the smaller disc, an input plunger 25 slidable coaxially with the discs and normally projected from the actuating member 16 by spring means 26 a short and a long pin 28, 29 fixed to the input plunger and extending parallel to the axis of the discs for engagement respectively with a marginal opening 34 in the smaller disc 32 and a similar opening 35 formed in the larger disc 33 at a distance from its centre greater than the diameter of the smaller disc, and an output plunger 41 slidable in the housing and engageable by the long pin 29 of the passage thereof through the larger disc 33. As shown, the lock is in the form of a key-hole obstructor to prevent unauthorised operation of a cylinder lock, barrel 10 associated with a vehicle ignition switch. A steel blade 20 fixed to the lock housing 15 includes a barb 21, which when the blade is inserted into the lock barrel becomes trapped behind the innermost tumbler of the lock to prevent withdrawal of the blade until the openings in the discs 32, 33 are aligned with their respective pins 28, 29 to permit the pin 29 to engage the plunger 41, and move a prong 42, carried by the plunger 41, into the key slot and to raise the innermost tumbler whereby to free the barb 21 and allow the blade 20 to be withdrawn. The discs 32, 33 are set by successively aligning two graduations on the member 16 with an index 43 on the housing 15. Dummy recesses are provided on the discs. The graduations on the member 16 may be marked on an angularly adjustable shell frictionally located on the member 16, to permit changing of the permutation required to release the obstructor. In another arrangement, Fig. 4 (not shown), in which the lock is substituted for the normal ignition switch, the actuating member 16 is a flat annulus within a cover member which also acts as a guide for the input plunger. The ignition switch contacts are associated with the output plunger such that the contacts are closed and opened upon successive operations of the input plunger. The lock may also be associated with the vehicle starter motor, a bonnet fastening, or a fuel pump for a compression-ignition engine. In any application the lock may be connected to the device to be controlled by a flexible thrust member.
Patent GB-231294-A (GB)
Title: Improvements in or relating to hockey sticks
IPC: A63B59/12
Filed: 1924-02-19
Abstract: 231,294. Hazell & Co., and Cordwell, G. 3r. Feb. 19, 1924. Hockeysticks.-The head of a hockey stick is rein. forced by the insertion in a slot in the head of a strip e or strips of similar or dissimilar material to that of the head, the grain of the strip or strips being arranged transversely at an angle to that of the head. The strip or strips may be glued or secured by pegs in the slot, and they may be of even or uneven thickness throughout their lengths and extend throughout the whole length of the head.
Patent GB-588473-A (GB)
Title: Improvements relating to rotary or milling cutters
IPC: B23C5/24
Filed: 1945-02-21
Abstract: 588,473. Determining centre of gravity. DEFIANCE MACHINE WORKS, Inc. Feb. 21, 1945, No. 4331. Convention date, June 12, 1944. [Class 97 (iii)] [Also in Group XXII] In balancing the removable teeth of a rotary cutter such as a milling cutter, an opposed pair of tooth and balancing assemblies is balanced by means of apparatus such as is shown in the Figure. An arm 50 is mounted on knife edges 51 on vertical supports 49 and ha's bosses at the ends to receive cutter and balancing assemblies 20a, 42 respectively, which are then adjusted to give a static balance. The assemblies are then transferred to bosses 52, 53, with their faces engaging surfaces 54, 55 on the bosses equidistant from the axis of the arm 50 and further adjusted to ensure a dynamic balance when finally installed in the cutter body.
Patent GB-179629-A (GB)
Title: Improvements in means for use in obviating the glare of the headlights of motor-cars, motor-cycles and the like
IPC: F21V14/04
Filed: 1921-02-07
Abstract: 179,629. Ensor, H. E., and Sampson, J. Feb. 7,1921. Vehicle lamps; lantern screens.- To prevent glare in vehicle lamps, a hood 4 is pivotally mounted on the exterior of the lamp casing .1 and is operated in unison with a flap 7 hinged at 4 to the reflector 3 or the casing 1. The flap 7 normally lies close against the reflector and, being polished, acts as part of the reflector but, when turned into the position shown by an arm 10 on a spindle 9, directs upwardly the rays from the light source 2. At the same time the hood 4 is operated and deflects downwardly the rays issuing from the lamp. The operating-means, Fig. 4, comprises an arm 15 mounted on the spindle 6 carrying the hood 4 and connected by a link 14 to a similar arm 13 on the spindle 9 carrying the flap 7, the latter spindle being operated from the driver's seat by a rod 18 and an arm 17.
Patent GB-555650-A (GB)
Title: Pyrotechnic device suitable for signalling and other purposes
IPC: F42B4/26
Filed: 1942-04-03
Abstract: 555,650. Pyrotechnic devices. COOK, H. A. April 3, 1942, No. 4471. [Class 9 (ii)] A device of the Roman candle type, embodying one or more coloured-star units, flash units, or parachute-borne star units, comprises a watertight container tube for the units and a percussion igniter, propelling, and delay charges, for projecting the units in succession. In the form shown, the container tube 1, which may be of metal, "plastic," or waterproofed rolled paper, is sealed at one end by a non- removable cap 2 and at the other end by an end-piece 16 carrying the percussion igniter 18. The tube 1 is covered by a heat-insulating layer 10 of paper encased by a tin-plate outer jacket 11. The end-piece is sealed around the end of the jacket 11 by a strip 13 of waterproof adhesive tape. The end-piece 16 and release-member 20 for the striker 18 are protected by a screw-on cap 15. Propellant charges 3, 4 are placed under the star units 5, 6 and associated with delay charges 7, 8 and a priming charge 22, the unit 6 being the first to be ejected.
Patent GB-936559-A (GB)
Title: Improved ball projecting machine
IPC: A63B69/40
Filed: 1962-02-06
Abstract: 936,559. Ball-projecting devices. R. E. ANDERSEN ENGINEERING WORKS (PROPRIETARY). Feb. 6, 1962 [Feb. 17, 1961], No. 4472/62. Class 132 (2). A ball-projecting machine for use in practising ball games, comprises a striker arm 17 which is mounted on a driven, rotary shaft 15 so as to be pivotable relative thereto, and is arranged to be periodically retracted to the position illustrated in broken lines in Fig. 1, prior to being released to strike a ball held in a cradle 23. The lower end of the arm 17 is bifurcated at 16, the crotch thus formed straddling a disc 14 which is rigidly mounted on the shaft 15 and is provided with notches 21 in its periphery. The crotch of the striker arm is also provided with a detent 20 which is spring-urged into engagement with the periphery of the disc 14, and thus periodically with a notch 21. The arm 17 is then retracted against the action of spring 19, which is anchored between the wheeled frame of the device and an extension 18 of one limb 16 of the bifurcated striker arm, until the detent is released from the relevant notch 21 by a fixed trigger 22, the resultant forward swing of the striker arm being arrested by a shock-absorber 37. The striking head 28 of the arm 17 may be rotatable to present variously shaped striking faces to the ball, and thereby vary the trajectory of the latter, this rotation being effected by means of a ratchet 36 on the striking head engaging a pawl 34 as the striker arm is retracted. A second disc may be mounted on the shaft 15, arranged to be movable into close proximity with the disc 14, with a view to masking some of the notches 21 in the latter. The cradle 23 is fed with balls from a passageway 24, under the control of a gate whose operation is synchronized with that of the striker arm. The device may be modified to simulate the bowling of cricket balls, the head 28 being replaced by a cup which retains the ball until the forwardly moving arm abuts against the shock-absorber 37.