baber/WOPTO huggingface dataset:
Patent GB-1472121-A (GB)
Title: Mowing machines
IPC: A01D34/66
Filed: 1974-04-16
Abstract: 1472121 Rotary mower C VAN DER LELY NV 16 April 1974 [13 April 1973] 16617/74 Heading A1F Blades 87 are carried by supports 88 which are freely pivotable about a vertical pin 93 and a horizontal pin 90 with respect to a felly 80 of a rotor 9 such that the supports are directed outwardly from the rotor axis due to centrifugal forces during operation of the mower but may deflect upwardly and rearwardly on contact with uneven ground. An edge 94 of the support co-operates guidingly with the felly rim 86 for this deflection until the support contacts a spoke 79 acting as a stop. A bracket 92, carrying the pin 90, limits downward movement of the support 88, or the rim 86 may be extended for this purpose. Specification 1472123 should be referred to for further details of the mower construction.
Patent GB-657997-A (GB)
Title: Improvements relating to bolt-cutting devices
IPC: B23D21/00
Filed: 1949-06-23
Abstract: 657.997. Bolt - cutters. AIRCRAFTMARINE PRODUCTS, Inc. June 23, 1949, No. 16666. Convention date, July 6,. 1948. [Class 61(ii)] [Also in Group XXII] A bolt cutter comprises apertured cutters one of which is threaded to receive the screw of the bolt. An outer cylindrical member 34 is rotated on a fixed member 38 by a handlever 36. The member 34 carries tapped holes 35 which can be aligned with plain holes 39 in the member 38. A bolt is screwed into the appropriate hole 35 to project into the hole 39 and shearing is effected by manipulation of the handle 36. In a modification the holes are carried on the jaws of pliers and in a further modification a rackreciprocated partially apertured cutter cooperates with a tapped stationary apertured cutter.
Patent GB-669970-A (GB)
Title: Improvements in or relating to radio-receivers
IPC: H01J25/78
Filed: 1944-09-01
Abstract: 669,970. Electron discharge devices. FARNSWORTH TELEVISION & RADIO CORPORATION. Sept. 1, 1944 [Nov. 18, 1943], No. 16713/44. Class 39 (i). [Also in Group XL (c)] A radio-receiver for detecting a modulated high-frequency carrier wave and amplifying the detected signal comprises an electron discharge tube including an electron multiplier having a gain-frequency response such as to amplify the detected signal but to suppress the carrier and higher frequencies, means for projecting an electron beam to fall at least in part on to a secondary emitting surface of the input electrode of the multiplier, and means responsive to the modulated carrier wave for deflecting the beam to vary the number of electrons falling on to the secondary emitting surface in sympathy with the modulation of the wave. The device shown in Fig. 1 comprises an envelope 1 containing a cathode heater 2, cathode 3, control electrodes 4 and 5 connected to adjustable resistors 15 and 16, plates 6 connected to an adjustable resistor 20 and power source 19 for deflecting the electron beam horizontally, electrodes 7 tunable in accordance with carrier signals received on antennµ 8 and an electron multiplier for receiving the deflected electron beam comprising an initial secondary emissive stage 10 having an aperture 11, successive stages 12 and a collector electrode 14 connected to a signal translating device such as an audio-frequency loud-speaker or a cathode-ray picture reproducing tube. The electrodes 7 can be tuned by movable plates 21 and 22, between which is an insulating plate 23, connected through inductors 24 to potentiometer 25, and receive from the antennµ 8 the high-frequency modulated carrier signal for deflecting the electron beam in a vertical plane from its normal position into overlapping relation with the aperture 11. Instead of the aperture 11 the input electrode 10 of the multiplier may comprise a surface a portion of which is secondary electron emissive and adjacent portions of which are non-emissive-for example the input electrode may be partially covered with carbon black. The Specification as open to inspection under Sect. 91 describes the apparatus shown in Fig. 3 (Cancelled), in which the variation in the electron current reaching the multiplier is obtained by the use of a control grid 29, the grid-to-cathode potential being controlled by a pair of ultra-high-frequency conductors 30 connected to dipole antennae 8, a slider bar 31 being used for tuning. Vertical deflection of the beam is effected by plates 32 energized from a source 34 through a variable resistor 33. This subject-matter does not appear in the Specification as accepted.
Patent GB-254752-A (GB)
Title: Method of and apparatus for steam generation with burner fed fuel
IPC: F22B21/06
Filed: 1926-07-05
Abstract: 254,752. Burroughs, C. W. July 3, 1925, [Convention date]. Pulverulent, liquid, and gaseous fuel furnaces. -The combustion chamber 1 of a water-tube boiler furnace burning pulverulent, liquid or gaseous fuel is enclosed on all sides by vertical water tubes 12 connected to upper and lower headers 10, 11, the upper header 10 being provided with one or more burner tubes 2. Preheated air is supplied to the combustion chamber 1 from a manifold 6 and tubes 60 arranged between the tubes 1. The combustion products pass between the tubes 12 around the headers 11 and thence through an opening in the wall 36 to a chamber 3 containing boiler tubes 32 connected to upper and lower drums 30, 31 which in turn are connected with the headers 10, 11 respectively by tubes 4, 40 and 5. Baffles 33 direct the course of the gases around the tubes to an outlet 34 and to an air-preheater and thence to the chimney. The steam outlet pipes 35 from the drums 30 may lead to a superheater 37.
Patent GB-1068183-A (GB)
Title: Improvements in or relating to rotary tool shaft retaining devices
IPC: A47J43/07
Filed: 1964-04-23
Abstract: 1,068,183. Culinary mixers. PHILIP'S GLOEILAMPENFABRIEKEN N. V. April 23, 1964 [April 26, 1963], No. 16874/64. Heading B1C. [Also in Division F2] The shaft of a beater for a domestic food mixer is releasably retained, in the central bore 10 of a sleeve 4 forming part of a plastics driving member, by spring lugs 20 integral with the sleeve and formed by slitting longitudinally a tube having a rib 14 for engaging beneath the conical head 9 of the shaft. Relative rotation of shaft and sleeve is prevented by complementary projections 6 on the shaft and slots 7 in the sleeve.
Patent GB-1399227-A (GB)
Title: Apparatus for measuring the group propagation time in a quadripole
IPC: H04B3/46
Filed: 1973-04-09
Abstract: 1399227 Measuring group delay SOCLANNIONNAISE D'ELECTRONIQUE SLECITEREL 9 April 1973 [7 April 1972]  16960/73 Heading G1U In apparatus for measuring group delay, a modulated signal having a swept carrier frequency is supplied to the four-pole network, Q under test, the sweep frequency Fb being lower than the modulating frequency Fm, the network Q output is reduced to a fixed frequency phase modulated signal whose phase is compared at 11 to a reference signal and the reference phase is controlled by the amplitude of the sweep frequency component in the phase comparator 11 output. The output B from modulator 5 comprises a 1MHz excursion modulation at a 1KHz modulating frequency on a carrier which varies from 400-600 MHz at a frequency of 10Hz. After passing through Q, the varying frequencies in the signal are removed by modulation 7 and frequency shifted to a 10MHz I.F. by further modulation 8. The phase modulation in the output from modulator 8 will in general have two components, one at 1KHz and one at 10Hz. Any 10Hz component in the comparator output is separated by a 50Hz cut-off low pass filter 13 and used to control the reference phase of oscillator 14. The phase comparator output thus contains only the magnitude of the phase shift produced by the 1KHz frequency modulation. This is separated by a 1KHz band-pass filter 15 and the amplitude detected. This amplitude is directly proportional to the group delay and is displayed on a CRT or recorder 18. Since the carrier frequency varies, the display will plot out the group delay vs. frequency curve. In a modification, Fig. 2 (not shown) non-linearity in the frequency modulator is compensated by an attenuator in the path from the modulation signal source 2. The attenuator is controlled by the output of a block Z identical to that of Fig. 1 except the input is derived from a network having a linear phase shift (i.e. constant group delay) over the working frequency range. The reference network is fed from the same output B as the network under test.
Patent GB-201354-A (GB)
Title: Improvements in air-cooled cylinders for internal combustion engines
IPC: F02F1/06
Filed: 1922-06-20
Abstract: 201,354. Villiers Engineering Co., Ltd., and Pountney, F. June 20, 1922. Cylinders, cooling.- The fins on the cylinder head are arranged as shown at varying angles with the cylinder axis the central fins and the highest body fin A<2> being united to a central boss C. Each symmetrical pair may radiate from the same point on the cylinder axis, or from points which become progressively higher as the distance of the fins from the axis becomes greater.
Patent GB-651027-A (GB)
Title: Improvements in and relating to sand blast moulding machine
IPC: B22C15/24
Filed: 1948-06-24
Abstract: 651,027. Moulding-machines. HANSON, R. G. June 24, 1948, No. 17021. [Class 83 (i)] A sand-blast moulding machine comprises a sand container adapted to be moved into and out of alignment between an air blasting head and a mould and lever-operated means for clamping the mould in position on a supporting table, moving the table to bring the mould into contact with the end of the sand container and simultaneously moving the sand container into sealed engagement with the air blasting head. The machine comprises a vertical column carrying a vertically adjustable blasting head c, a forked holder d for a sand container e and a vertically adjustable arm h supporting a mould table g. The holder d rests on a vertically adjustable ring f so that it may be swung aside away from the mould when the latter has been filled. On the table g is an adjustable, but normally fixed, clamping jaw p and a cooperating jaw n actuated by a lever m to grip the flask o. The head c may be connected to a source of compressed air through a manually operated valve t and is formed with nozzles u and a recess for a sealing strip s. In operation, the flask is placed on the table against the clamping jaw p, the container in its holder, is swung into operative position and a lever k is operated to turn a screw l bearing on the underside of the lever m. This raises the lever m to move the jaw n so as to grip the flask, and continued turning of the screw raises the table until the flask contacts the bottom of the sand container which is raised in its holder into contact with the sealing strip s at the bottom of the head c. The valve b is then opened and the air blast forces the sand into the flask. Reverse movement of the handle k separates the parts, the container is swung away and the flask removed. In a modification, Fig. 8, the head is provided with a valve w which is opened against a spring when the container is lifted into sealing relation with the head.
Patent GB-211778-A (GB)
Title: Improvements in chain belts
IPC: F16G5/18
Filed: 1923-07-02
Abstract: 211,778. Edwards, F., and Robinson, O. N. July 2, 1923. Belts. - An elastic link-belt for use on motor vehicles &c. comprises side plates arranged in pairs secured together at a short distance apart with a flat spiral spring arranged therebetween at each end, alternating with and connected by intermediate links the hooked or looped ends of which embrace the springs. The side plates A, separated by distance pieces G are secured together by preferably tubular rivets B which project and are expanded to retain outer covering pieces in position. Around each rivet pin B is arranged a flat spiral spring D, preferably formed as shown in Fig. 9, in three widths, an anchoring part D' engaging an enlargement E of the rivet hole, an intermediate, part D" serving as a distance piece between the side plates and a part D tapered or otherwise reduced to serve as the spring proper. The intermediate links H may be in the form of double hooks as shown or may completely enclose the spring at one end, the intermediate part H<1> being curved to increase the resiliency.
Patent GB-571446-A (GB)
Title: Improved device for locking together component container portions
IPC: F21L23/00
Filed: 1943-10-18
Abstract: The water chamber a of an acetylene lamp is fitted with strips e1, e2 that support a cranked spindle f that may be turned by the arm f2 to engage the curved base d1 of the carbide container d and retain it in a gas-tight connection with the water chamber.  The end f3 of the arm f2 is bent over to form a handle for the lamp.  A lug m has a depression m1 into which the arm f2 may be sprung and a pivoted catch k is provided to retain the arm f2 in position.  In a modification, the support for the spindle f is pivoted to the strip e2 and the strip e1 has an inclined slot into which the other end of the spindle may be placed.  In this construction, a cam on the spindle f is rotated by a lever fixed to the spindle. <PICT:0571446/IV/1> <PICT:0571446/IV/2>
Patent GB-583883-A (GB)
Title: Improvements in bendable means for transmitting reciprocating motion
IPC: F16C1/20
Filed: 1945-07-05
Abstract: 583,883. Chain mechanism for transmitting reciprocating motion. AIRCRAFT HYDRAULIC APPLIANCES, Ltd., and WYLIE, H. N. July 5, 1945, No. 17198. [Class 80 (iii)] In a push-pull type transmission line for transmitting reciprocating motion along a curved path a roller type chain 2 is located in a tubular casing 1, the rollers 3 of the chain being in contact with rails 4 diametrically disposed and running longitudinally of the casing 1. The rails 4 may be free in or fixed to the casing 1, and may be of rectangular, channel or other shape. As shown for use on aircraft, at one end the tube is connected to a fluid pressure cylinder 8, the piston 7 of which is connected to the chain by a rod 5, and at the other end actuates u pinion 10 through a rack 9 and another rod 5. A plurality of such pinions, spaced apart, may be operated by the same transmission line. A plurality of chains may be mounted side-by-side in a single casing. The rails and chain may be mounted loosely in a straight casing which during assembly is bent to the required degree of curvature. The Provisional Specification states that the invention may be applied to the actuation of windscreen wipers.
Patent GB-219326-A (GB)
Title: Improvements in or relating to packings for vacuum brake piston-rods
IPC: B60T13/46
Filed: 1924-07-17
Abstract: 219,326. Sinclair, W. S., and Smith, W. H. July 18, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Cup-leather packing.-Packing for the pistonrod e of a vacuum brake consists of a rubber or other ring having a flange b secured in a recess of the box f by the flange of a liner d. The packing edge of the cup-leather is thickened and rounded, and is preferably of slightly less internal diameter than the diameter of the rod. The box has perforations j to permit access of air.
Patent GB-1083931-A (GB)
Title: Electrically operated washing machines
Inventor: DOW ALEXANDER BRIAN RODERICK
IPC: D06F37/20
Filed: 1965-04-23
Abstract: 1,083,931. Washing machines. RADIATION Ltd. April 19, 1966 [April 23, 1965], No. 17258/65. Heading D1A. A washing machine comprises a motordriven reversible shaft driving a swash plate type agitator, a spin tube mounted concentrically with respect to the drive shaft for driving a spin cage, the rotor of the motor being mounted directly on the end of the drive shaft external of the tub, the stator being mounted on the tub structure, and a helical spring being coiled around the spin tube with one end anchored so that the spin tube is non-rotatable or freely rotatable according to the direction of rotation of the drive shaft. As shown, a shaft 1 is connected at its upper end with a swash plate agitator (34) and is rigid at its lower end with the rotor 11 of an electric motor and with a cooling fan 12. A spin tube 2, concentric with shaft 1, is coupled at its upper end to the latter by a uni-directional clutch 4, and is rigid with a sleeve 5 formed centrally of a spin cage 6 enclosing agitator (34). A tub 16, enclosing spin cage 6, is rigid with a housing 17 supporting the motor stator 20. Tub 16 and housing 17 are braced together by struts 25. Tub 16 is suspended within a stationary casing (35) by coil springs (36), and damping means (37) of the linear friction type are interposed between tub 16 and casing (35). A sleeve 8, rigid with tube 2, journals a brake band 27 having a lug 28 engagable by a stationary abutment when the lid of tub 16 is not closed, for preventing rotation of tube 2. A helical spring 29, coiled on sleeve 8, has one extended end 29a connected to the spring-biased actuating lever of a valve (30) connected between the drainage outlet (32) of tub 16 and a pump (31). The arrangement is such that when shaft 1 rotates in the direction in which it is uncoupled from tube 2, during a washing phase, spring 29 is tightened on sleeve 8 to prevent rotation of tube 2 and to close valve (30). When shaft 1 is stationary, or rotates in the other direction to drive tube 2 during a spin-drying phase, spring 29 uncoils from sleeve 8 and valve (30) is opened. During a rinsing phase, water is supplied to tub 16 via an adaptor (44) and hose (46), and passes to pump (31) via an overflow (33). To prevent the rate of water supplied by hose (46) exceeding the pumping rate of pump (31), a spring-loaded safety valve is incorporated in adaptor (44). In a modification, clutch 4 is replaced by a torsion spring similar to spring 29.
Patent GB-334552-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C13/00
Filed: 1929-06-05
Abstract: 334,552. Pyrene Co., Ltd., and Hunter, J. N. June 5, 1929. Storing under pressure. - A fire-extinguisher 1 charged with a liquid under permanent pressure, in which, alter filling, the outlet of the extinguisher is closed by a temporary seal while a permanent seal is placed in position, is formed with an integral neck 2 in which is secured an internally - threaded sleeve 3. A strengthening sleeve 11 sweated over the neck 2 is screw-threaded for the reception of a cappiece 17. When the extinguisher has been charged, for example with methyl bromide, pentachlorethane, and carbon-dioxide under pressure, a plug 6 is screwed into the sleeve 3 up to packing 9. The plug is sealed at its upper end by a sweatedin cap 10, and is formed at its lower end with perforations 7. The extinguisher is then permanently sealed by a disc 12 soldered over the neck 2. The cap-piece 17 is then screwed on up to a packing ring 13. It carries a nozzle 22 and a piercer 15 for both seals, and is secured to a handle 19 rigidly secured at its lower end to a ring 21 encircling the extinguisher. In a modification, adapted for upright use, the plug 6 is replaced by a conical plug carrying a dip tube.
Patent GB-474640-A (GB)
Title: Improvements in and relating to toy railways and vehicles therefor
IPC: A63H19/04
Filed: 1936-06-22
Abstract: 474,640. Toy railways. GRAHAM, E. M. June 22,1936, No. 17308. [Class 132 (iii)] A vehicle 5 and track 1 therefor incorporates reversing means comprising a pinion 5e which is moved, from the position shown in Fig. 4, where it is indirectly driven from the driving pinion 5a through the pinion 5d, to the position shown in Fig. 5, where it is directly driven from the pinion 5a by a member 7 engaging the ends of the slidable spindles 5b, 5c of the pinions and having a projection 8 engaging in a cam slot 9 of a plate 10 which is moved by engagement with one or other of strikers 3 secured to plates 4 at the ends of the track. The pinion 5e is integrally connected by a sleeve 5x with a pinion 5f engaging with a pinion 5g upon the spindle of the driving wheels a. The pinion 5g is of such a length that the pinion 5f is in engagement with it whatever its position. Stops 2 are provided to prevent the vehicle leaving the track in the event of failure of the reversing mechanism. In a modified construction a circular track with one striker is provided.
Patent GB-1001439-A (GB)
Title: A process for the manufacture of textile material coated with polyamide
IPC: D06M15/59
Filed: 1964-04-27
Abstract: A process for the production of textile material coated with polyamide comprises contacting a base layer of textile material with a solution of a polyamide in formic acid, said solution containing one or more esters which are miscible with formic acid, and subsequently contacting the thus treated base layer with an aqueous solution to precipitate the polyamide on the base layer of textile material.  The textile material may be a napped cotton fabric, a knitted fabric or non-woven fibre web.  The fabrics may also be made from rayon, synthetic fibres, or fibre mixtures. The fibres may have a round or non-round cross-section, and they may be hollow. Specified polyamides are nylon 6, nylon 66, nylon 6.10 and nylon 12. Preferred esters are esters of aliphatic carboxylic acids.  The polyamide-formic acid solution may also p  contain a sulphited unsaturated oil and/or urea, as well as conventional chemicals used to prevent degradation of polyamide by light, oxygen, and micro-organisms.  The aqueous solution used to precipitate the polyamide may be water, aqueous formic acid solution, or an aqueous alkaline solution.  The coagulation bath may contain high molecular weight substances soluble in water, e.g. sodium carboxymethyl cellulose or polyvinyl alcohol.  The final product may be used as a wash-leather, or lining material for shoes, and for making gloves and artificial suede jackets.
Patent GB-785289-A (GB)
Title: Knitted fabric and method of and apparatus for the production thereof
IPC: D04B15/06
Filed: 1953-06-23
Abstract: 785,289. Knitting. NEBEL, M. June 23, 1953, No. 17411/53. Class 74 (2). A circular machine has two groups of needles N<SP>1</SP>, N<SP>2</SP> the needles N<SP>1</SP> alternating with the needles N<SP>2</SP>, and has two groups of loop transferring or holding members P<SP>1</SP>, P<SP>2</SP> alternating in a similar manner so that each needle N<SP>1</SP>, N<SP>2</SP> has respectively associated with it a member P<SP>1</SP>, P<SP>2</SP>. Two feeding stations are provided in the machine at the first of which a ground yarn g is fed to all of the needles from a guide 11 positioned so that the ground yarn is fed beneath the advanced members P<SP>1</SP>. A second guide 1 also feeds a yarn a to the needles N<SP>2</SP> so that these needles knit a ground yarn g and the yarn a together and in doing so draw the yarn a over the advanced members P<SP>1</SP>. Prior to the feeding station the needles N<SP>1</SP> receive loops from the members P<SP>1</SP> which have held these loops since previously passing this station such that the held loops a, h extend over two courses as shown in Fig. 1. The needles N<SP>1</SP> therefore knit the ground yarn g and held loop a, h together at the feeding station. After receiving a loop drawn by the needles N<SP>2</SP> on either side, the member P<SP>1</SP> is withdrawn until it is necessary to advance to transfer the held loop to the associated needle prior to the needles again passing the first feeding station. Similarly, only that the action of the groups of needles and members is reversed, the members P<SP>2</SP> transfer a held loop bh to the needles N<SP>2</SP> prior to them passing the second knitting station at which the needles N<SP>1</SP> take and knit a ground yarn g from a guide 11 and an additional yarn b from a guide 2, the guides being similarly positioned as those at the first feeder so that the additional yarn b is drawn over advanced members P<SP>2</SP>. The ground yarn g fed beneath the advanced members P<SP>2</SP> is also taken by the needles N<SP>2</SP> to be knitted with the previously transferred loops bh. The members P<SP>2</SP> are then withdrawn to hold their loops bh until they transfer them back to their associated needles N<SP>2</SP> prior to the needles passing the second station.