baber/WOPTO huggingface dataset:
Patent GB-1424473-A (GB)
Title: Pneumatic spring hammers
IPC: B25D11/12
Filed: 1973-02-19
Abstract: 1424473 Percussive tools ROBERT BOSCH GmbH 19 Feb 1973 [21 Feb 1972] 8009/73 Heading B4C A pneumatic spring hammer comprises either a strike-piston 54 or cylinder 45 reciprocated to cause a hammer blow via an air cushion, and an air pump 9 at the rear of the piston and cylinder whose suction is connected to atmosphere by a check valve 60 and whose discharge is connected to the air cushion space 57 by a second valving arrangement such as a groove 44 and port 58 in the housing and cylinder respectively controlled by movement of the cylinder and strike piston. As shown, the air pump is formed by the crankcase 9 and the motor-driven crank disc 10 drives the cylinder 45 to cause reciprocation of a strike piston 54 to hammer the end 29 of an anvil 21 against a tool 26. When the hammer is started up and the cylinder 45 is moved forwards a vacuum appears in the crankcase 9 to draw in air through a filter 62 and the check valve 60. As the cylinder moves forwards it compresses air in the space 57 to cause forward movement of the strike piston. The air in the space 56 is compressed and when the edge 45<SP>11</SP> of the cylinder has passed over the edge 44<SP>1</SP> of the groove 44, this air flows into the crankcase to close the check valve 60. As the strike piston approaches the anvil 21 the air pressures in the spaces 56 and 57 are equalized through a longitudinal groove 55 in the cylinder. During subsequent rearward movement of the cylinder 45 the strike piston 54 is accelerated rearwards and the air in the crankcase 9 is compressed to flow into the space 56 via the groove 44 to assist acceleration. When the hammer is removed from the workpiece, the strike piston 54 drives the anvil 21 into a non-operative forward position where a resilient ring 37 of rubber or plastics snaps into a groove 31 and the air in the spaces 56 and 57 are equalized with the strike piston remaining in its end position with the port 58 uncovered. Cooling air from a fan on the motor drive shaft flows between inner and outer casings 12, 13 and out through openings 17 and 18.
Patent GB-992419-A (GB)
Title: Improvements in or relating to rotary piston engine rotors
IPC: F02B53/00
Filed: 1962-03-01
Abstract: 992,419. Rotary piston engines. REGIE NATIONALE DES USINES RENAULT. March 1, 1962 [March 25, 1961], No. 8077/62. Heading F1F. A rotary piston engine rotor carried on a crankshaft within a stator having one less lobe than the rotor is formed with an epicyclic outer contour and consists of a separate annular outer part and hub assembly in which the hub in turn is made of a plurality of parts bolted or otherwise connected together. As shown in Figs. 1 and 2, the rotor comprises an outer part 10 having an inwardly directed annular flange 17 formed with a plurality of bolt holes 18, 19 and a two-part hub 20 whose two parts 21, 22 are joined together by bolts 23. The holes 18 receive bolts 18<SP>1</SP> connecting the part 10 to the hub and the holes 19 bolts 19<SP>1</SP> connecting gear wheels 8, 9 to the hub. The gear wheels 8, 9 mesh with gear rings 6, 7 on the stator to guide the rotor with respect to the stator. Inlet and outlet bores 31, 32 in a one-piece crank-shaft communicate through hub grooves 34, 35 and radial ducts 13, 14 with peripheral ducts 11, 12 in the part 10 to circulate cooling oil. The flange 17 and rotor part 10 are hollowed out to reduce weight. In another embodiment a twolobe rotor co-operates with a three-lobe stator with sealing strips provided at the intersection points of the stator lobes.
Patent GB-740168-A (GB)
Title: Improvements in and relating to means for securing a motor vehicle against theft
Inventor: GIBBS KENNETH DONALD REGINALD
IPC: B60R25/04
Filed: 1953-03-24
Abstract: 740,168. Preventing unauthorized use. BRITONIC PRODUCTS. Ltd. March 19, 1954 [March 24. 1953]. No. 8115/53. Class 7.(2) [Also in Groups XXXI, XXXVII and XXXVIII Closure of a vehicle engine ignition cirpuit and release of various locked vehicle parts can be effected only if, from amongst .a lettered or numbered series of operatorcontrolled electrical switches, those are selected which correspond to a code word or number already selected as by positioning of switches of a. like series in a control box. Two-way switches A...U and A<SP>1</SP>...U<SP>1</SP>, basically set to the left, are mounted respectively on the vehicle dashboard and in a lockable control box, and, when the code word "GOLDEN", selected by. moving the corresponding control box switches to the right, is matched by similar movement of the dashboard switches as shown. current from a main battery 51 or auxiliary battery 52 flows through a relay 32 to close switches 7<SP>1</SP>, 8<SP>1</SP> controlled thereby. A dashboard switch 38 is then closed to maintain the relay 32 energized and the lettered dashboard switches are returned to their basic position. The ignition coil 49 can then be energized or de-energized at will by movement of a two-way dashboard switch 39 to its upper or lower position. If the switch 38 is opened re-selection of the code word is necessary before the coil 49 can be again energized. Further analogous relays 33, 35, 37 and switches control in a similar manner energization of the coils 20, 47. 29 of solenoids acting against springs to release bonnet, van door and control box cover bolts. The leads from the dashboard switches to the control box run through a flexible metallic hose and the lead to the coil 47 through another together with a wire 46 earthing of which due to attempted severance of the hose energizes a relay 34 to close switches 14<SP>1</SP>, 15<SP>1</SP> respectively maintaining the relay energized and closing a horn circut until a "reset" in the control box is operated. Closure of a switch 36 in the control box enables the ignition coil 49 to be energized at any time by movement of the switch 39 into its lower position. The Provisional Specification describes a modified system dis pensing with the switches A<SP>1</SP>,:.U<SP>1</SP>, ;  the switches A...U being themselves protected by the control box and wired so that on the 'selection of a basic code word energization of the ignition circuit may be effected and on the additive selection of further code words first a bonnet bolt and then a control box cover bolt may be redeased.
Patent GB-1024207-A (GB)
Title: Method of and apparatus for the production of hollow casting moulds and cores
IPC: B22C23/00
Filed: 1965-02-25
Abstract: 1,024,207. Machines and processes for making moulds and cores. BUDERUS'SCHE EISENWERKE. Feb. 25, 1965 [Feb. 29, 1964], No. 8145/65. Heading B3F. Parts, e.g. halves, of hollow moulds or cores are moulded from compositions such as sand mixed with thermosetting synthetic resin in cavities 14, Fig. 17 (not shown), and are hardened except for edge portions so that the edge portions of complementary members can then be pressed into contact with one another and then hardened to join the parts and thus form the hollow bodies. Two different machines, each with a table 2 and column 3 with an arm 4 bearing a blowing head 5 over the table, are described. In one, Figs. 1-8 and 17 (not shown), there are two supports 10, 10<SP>1</SP> for mould-box parts 12, 12<SP>1</SP> which are heated and a support 11 for mould-box parts 13 which are cooled. The cooled parts 13 with their support are inserted between the heated parts, Figs. 1 and 3 (not shown), for forming the mould halves and then the parts 13 are withdrawn, Figs. 2 and 6 (not shown), to allow the parts 12, 12<SP>1</SP> to be brought together, Fig. 7 (not shown), to unite the core- or mould-parts. In the other machine, Figs. 9-16 (not shown), two cooled mould-box parts 13, 13<SP>1</SP> are fixed to the underside of the blowing head 5 and after coaction with the heated parts 12, 12<SP>1</SP>, they are raised and the parts 12, 12<SP>1</SP> are swung vertical and brought together. Sets of moulding apparatus may be mounted on a turntable.
Patent GB-184755-A (GB)
Title: Improvements relating to boots, shoes, and the like
IPC: A43B23/22
Filed: 1922-06-15
Abstract: 184,755. Jacques, A., and Jacques, A. June 15, 1922. Stiffeners.-A metal stiffener to prevent heels being strained or bent out of place consists of a single sheet 4 bent back on itself externally so that the part 1 lies adjacent the heel. The device is secured by a screw 8.
Patent GB-748280-A (GB)
Title: Improvements relating to electrical bus-bars and connectors therefor
Inventor: HUNT JOSEPH JAMES HOLMES
IPC: H02G5/02
Filed: 1953-03-25
Abstract: 748,280. Couplings; conductor clamps. SIMPLEX ELECTRIC CO., Ltd. March 24, 1954 [March 25, 1953], No. 8165/53. Classes 36 and 38 (1). Bus-bars, each comprising a pair of bars 14, 15 disposed parallel to each other and separated by a gap 18 corresponding to the thickness of the bars, are supported on insulating panels 11, 12 in a housing 13, Fig. 1, by clamps each comprising flanged plates 16, Fig. 3, clamped onto the bars by a bolt 17 passing through the plates, the gap 18 and the panel. Fig. 4 shows a connector for making connection to a bus-bar comprising a cable socket 37 having a laterally extending tang 35 which passes between the bars 14, 15, the latter being clamped onto the tang by a C-shaped clamp 40 one jaw of which carries a bolt 43 engaging a pressure plate 44. More than one clamp may be provided to clamp the tang 35. Such clamps 40 may be used to connect two interleaved bus-bars together as shown in Fig. 8, or to connect an L-shaped bar to a bus-bar (Fig. 7, not shown).
Patent GB-216265-A (GB)
Title: Improvements in extractors and ejectors for weeds, tacks or other objects
IPC: A01B1/16
Filed: 1923-03-23
Abstract: 216,265. Wilson, H. C. March 23, 1923. Tack extractors.-A hand device for extracting tacks comprises a shaft or handle 2 terminating in a curved forked end 3. To the lower end of the stem is attached a spring ejecting lever 6. In use, the tack a is positioned between the forks and extracted by a rocking movement of the handle, whereupon the ejector 6 which has been displaced, ejects the tack. In a modification a simple spring is used in place of the ejector 6, and in a further modification the ejector comprises a pivoted link actuated by depression alphathe stem against the pressure of an enclosed spring.
Patent GB-292700-A (GB)
Title: Improvements in or relating to cigarette-making machines
IPC: G01G19/00
Filed: 1927-03-26
Abstract: 292,700. Molins, W. E. March 26, 1927. Recording particular operations.-In apparatus for checking the consistency of cigarettes, contact of the recording pen with the strip 56, covering the edges of paper on the drum 18, is prevented by a cam 53 which, through levers 54, 55, lifts the pen at the required moment. Specification 260,744 is referred to.
Patent GB-986735-A (GB)
Title: Extension-slide mountings of drawers in filing cabinets and other structures
Inventor: GREEN BRIAN LESLIE
IPC: A47B88/493
Filed: 1963-03-02
Abstract: 986,735. Drawer runners. SANKEYSHELDON Ltd. Feb. 5, 1964 [March 2, 1963], No. 8448/63. Heading A4B. A telescopic-slide drawer mounting comprises an outer guide channel 3 for attachment to a stationary frame 4, an intermediate floating slide 2 of channel section slidably supported in the outer guide channel 3 by balls 19, and several separate runner units A for attachment to a side face of a drawer 1 in longitudinallyspaced relation and slidably supported within the intermediate slide 2. The runner units A may either consist of blocks 5 of nylon or similar plastics material, which are D-shaped in plan with a central recess 6 in their curved sides, or circular rollers, of either metallic or non-metallic materials, mounted upon horizontal pins. The blocks 5 or rollers are attached to the side of the drawer 1 by U-shaped brackets 9, which may be separate and secured to the drawer by spot welding, or they may be integral parts of the drawer wall in the form of pressed-out bridge-like parts, Fig. 7 (not shown). The intermediate slide 2 has an opening in its upper flange 16 whereby the runner units A may be inserted.
Patent GB-918662-A (GB)
Title: Improvements in and relating to laminated electromagnetic cores
Inventor: PARK KENNETH JOHN
IPC: H01F41/02
Filed: 1960-03-10
Abstract: 918,662. Inductors. GENERAL ELECTRIC CO. Ltd. Feb. 22, 1961 [March 10, 1960], No. 8488/60. Class 38 (2). An electromagnetic core for a choke or a combined transformer and choke assembly for use in control gear for discharge lamps, comprises a tubular casing 1 (Fig. 1) built up by winding a number of turns of magnetic sheet to the required wall thickness and a core limb 2 inside the casing and carrying a preformed choke coil. Slots (not shown) are cut in the casing to reduce eddy currents. The core limb 2 is in three sections, each section being a stack of laminations arranged end-to-end with air gaps in between and the end sections engaging flaps 4 of casing 1 to complete the magnetic circuit. Alternatively end closures may be formed of steel washers or cast iron or powder core end caps abutting the ends of the casing and the core limb 2. The end sections of the core limb are movable to vary the air gap between the sections and so adjust the choke impedance during assembly after which the gaps are packed or filled with thermosetting cement and the whole unit is impregnated with varnish. In a further embodiment laminations for endsection 6 (Fig. 2) of core limb 7 carrying choke coil 10 are integral with transformer laminations 8 carrying windings 11 so providing a combined choke transformer unit. A method of cutting out the laminations of the core limb section and transformer core with little waste is described, Fig. 3 (not shown). The outer turns of the casing and, if it is formed in two parts, the join 5 are secured by soldering, welding or adhesive. Specification 918,663 is referred to.
Patent GB-798538-A (GB)
Title: Improvements relating to apparatus for identifying railway vehicles
Inventor: DEAN COLIN
IPC: B61L25/04
Filed: 1955-03-23
Abstract: 798,538. Identifying railway vehicles. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 15, 1956 [March 23, 1955], No. 8494/55. Class 105. [Also in Group XL (b)] Railway vehicle identification equipment comprises on the track radiation sources, e.g. radio-active elements such as Sr90+Y90 or Cs137 or sources radiating wave energy in the visible or infra-red part of the spectrum, each arranged to transmit to its associated radiation detector, e.g. Geiger-Muller tubes and, on the vehicle to be identified, a series of discrete radiation absorbent screens adapted to intercept selectively and preferably simultaneously, the radiations from the sources to the detectors to produce signals from the selected detectors which are applied to storage equipment for application eventually to obtain an identity indication, e.g. on a binary digit counter. The signal receiving apparatus, normally ineffective, is rendered effective by the imminent approach of a vehicle for example by a single radiation source carried by the vehicle and arranged to co-operate with an appropriate detector on the track to provide a signal which is used to render the simultaneously operating signal receiving equipments effective at the correct instant as by opening gating devices to such equipments. This single radiation source with its detector may be adapted to provide a signal for a vehiclecounting apparatus. As shown, the radiation sources 3 are mounted in a horizontal line parallel to movement of the vehicle, but they may also be arranged vertically, between the rails, opposite the orifices of detector devices 5 accommodated in a detector housing 4 of suitable radiation absorbent material, e.g. lead. The vehicle 10 to be identified has a device 7 to hold strips 8 of radiation absorbent material rigidly to the vehicle, the strips 8 being arranged to produce a binary number corresponding to the identity number of the vehicle. A single radio-active source 9 affects a detector 12, the signal from which opens gates to allow signals from the detectors 5 to pass into storage equipment 6 and thence to produce the identity indication. When gamma rays are used the detectors may comprise sodium iodide crystals. For detection of beta-rays an open-ended window-type counter such as the applicant Company's halogen quenched-type B.12.H may be used.
Patent GB-782933-A (GB)
Title: Improved means for supporting radio aerials, wave guides and analogous apparatus or structures in aricraft or other vehicles
Inventor: CONWAY HUGH GRAHAM
IPC: H01P1/00
Filed: 1955-03-23
Abstract: 782,933. Waveguides. SHORT BROS. & HARLAND, Ltd. March 14, 1956 [March 23, 1955], No. 8499/55. Class 40 (8). [Also in Groups XXXII and XL (c)] Means for supporting a waveguide 10 against distortion, comprises two systems of cushions 11, 12, of which at least one system is hydrostatic, arranged respectively along opposite sides of the object 10, the cushions in each system being located at closely spaced intervals throughout the length of the object 10, the hydrostatic cushions being inter-connected to permit transference of liquid throughout the system. As shown, the object 10 is a waveguide having laterally extending flanges 101, 101. Each flange 101 is supported between an upper and a lower row of liquid-filled bellows units, interconnected by respective upper and lower conduits 15. The latter are connected to a reservoir 17 in which the liquid is pressurized by a spring-loaded piston 16. Each bellows is connected with its associated conduit 15 by a restricted orifice 151 which has a damping action. Any or all of the bellows of one of the rows acting on the associated flange 101 may be replaced by coiled springs. In a modification (Fig. 3, not shown) there are four flanges 101 projecting diagonally from each corner of the waveguide 10. Each flange is acted on by two opposed rows of bellows as before. In a further modification (Fig. 4, not shown) there are two flanges 101 disposed as in Fig. 1, and supported by an upper row of coil springs and a lower row of bellows. There are two additional rows of bellows acting in a horizontal direction respectively on bearing surfaces provided at the outer ends of the flanges 101. The bellows 11 may be replaced by piston and cylinder devices (Fig. 5, not shown). The invention is also applicable to supporting aerials.
Patent GB-174878-A (GB)
Title: Improvements in the manufacture of ammonium sulphate
IPC: C01C1/249
Filed: 1921-03-18
Abstract: Neutral ammonium sulphate of good colour is obtained by passing ammonia free from sulphuretted hydrogen into mother liquor drained from crystals removed from a saturator in quantity sufficient to neutralize the acid in the mother-liquor and the acid in the crystals, oxidizing the solution, for instance by air, and filtering; then stirring the crystals with the purified p  mother-liquor.  The crystals are separated by settling and the mother liquor is decanted with suspended impurities and may be returned to the saturator.
Patent GB-127894-A (GB)
Title: Improvements in or relating to Ordnance Breech Mechanism.
Inventor: DAWSON ARTHUR TREVOR
IPC: F41A3/04
Filed: 1917-06-15
Abstract: 127,894. Dawson, Sir A. T., and Buckham, Sir G. T. June 15, 1917. Ordnance breech mechanism. - Relates to mechanism having a curvilinearly sliding block A<1> moving about a transverse axis a, and having two forwardly projecting flanges a<1> formed with concentric internal fins engaging corresponding grooves on the outer surface of the gun A. According to the invention, the actuating handlever B has a disk B<1> rotatably mounted on the breech-block and provided on its inner face with a pin B<x> which engages a slot A<x> in the breech of the gun. In the closed position of the block. the pin B<x> passes over the dead-point position and locks the mechanism. The striker C is cocked during the opening movement by a two-armed lever C<1>, C<2>, the arm C' of which engages a groove b in the hand-lever B. The pressure of the striker spring acts to return the block so that it overlaps and retains the cartridge.
Patent GB-1429279-A (GB)
Title: Perfluoroalkylalkyl nitriles, process for their manufacutre  and their use
IPC: C07C253/00
Filed: 1974-02-26
Abstract: 1429279 Perfluoroalkylalkyl nitriles CIBAGEIGY AG 26 Feb 1974 [5 March 1973] 8642/74 Heading C2C [Also in Division D1] Novel perfluoroalkylalkyl nitriles of formula where R f  is an unbranched or branched perfluoralkyl radical with 3 to 18 carbon atoms, R 1  is H or F and m is 1, 2 or 3 are prepared by reacting perfluoroalkylalkyl iodides of formula with cyanides of formula M(CN) x  in which M is NH 4 <SP>+</SP> or an alkali metal or alkaline earth metal cation and x is 1 or 2.
Patent GB-1530531-A (GB)
Title: Transfer printing
IPC: C09D11/037
Filed: 1976-03-04
Abstract: 1530531 Transfer printing ink BASF AG 4 March 1976 [6 March 1975] 08651/76 Heading D1B Transfer printing inks, used on nylon and polyester contain the dye and one or more conventional constituents.
Patent GB-657736-A (GB)
Title: Improvements in pedals for cycles
IPC: B62M3/08
Filed: 1949-03-30
Abstract: 657,736. Cycle pedals. ISAAC, A. M. S. March 30, 1949, No. 8675. Convention date, April 2, 1948. [Class 136 (ii)] In a cycle pedal of the kind in which the foot bearing surface hangs from the pedal axle to form a stirrup the floor 4 of the pedal is connected to the axle 1 by two webs, the inner web 3 having in a plane at right-angles to the pedal axle a substantially triangular shape, with the base of the triangle of a length substantially equal to the maximum length of the pedal floor, whereas the outer web 2 has, in projection on the same plane, smaller dimensions arid, in plan view is oblique outwardly in the front to rear direction. Lightening apertures are provided in the web 3 and floor 4. The floor 4 is of pentagonal shape and is concave transversely and longitudinally, the outer edge being higher than the inner edge to counteract the tendency of the foot to slip outwardly. A reinforcing rib 4a is provided along the rear and outer edge of the pedal floor and a facet f is provided in the tip of this rib. The hub is provided at its ends with flanges la, 1b eccentric in opposite directions with respect to the intermediate cylindrical portion. The inner bore of the intermediate portion opens concentrically into the flanges. The centre of gravity of the pedal is ahead of the pedal axle 1.
Patent GB-216269-A (GB)
Title: Improvements in and relating to lifting jacks for motor vehicles and the like
IPC: B66F3/08
Filed: 1923-03-27
Abstract: 216,269. Hill, J. March 27, 1923. Jacks.-In a screw jack in which a member within the hollow lifting-pillar can be raised or lowered by hand to vary the effective length of the jack, the member 10 is formed with a series of grooves 11 any one of which can be engaged by balls 12 contained in a chamber 13 in the head of the pillar 6. When the jack is inverted the balls leave the groove and the member 10 can be moved with respect to the pillar. The pin 7 which engages the usual vertical groove 8 in the pillar is attached to a spring 9 formed with a thumbpiece to facilitate disengagement. Specifications 16662/05 and 181,994 are referred to.
Patent GB-165220-A (GB)
Title: Improvements in or relating to bobbin winding mechanism for sewing machines
IPC: D05B59/00
Filed: 1920-03-24
Abstract: 165,220. Flanagan, J. A. March 24, 1920. Sewing - machines.- The bracket k carrying the bobbin b<1> is pivoted to an arm d fixed tc the wheel guard c, and is urged towards in operative position by a spring coiled about Its pivot. The bobbir spindle carries a wheel q<1>, which is held in frictional contact with the fly-wheel a for the winding operation by the downturned end of a detent g pivoted to the upper end of the arm d, and engaging the flat side of a bearing in which the bobbin spindle is mounted. The detent carries an arm which rests on the thread wound on the bobbin, and is raised thereby as winding proceeds, until, when the bobbin is full, the end of the detent is disengaged from the bearing, allowing the bracket k to swing to inoperative position. A thread-guiding finger w is actuated by a cam on a wheel s driven by a worm on the bobbin spindle.