baber/WOPTO huggingface dataset:
Patent GB-1456932-A (GB)
Title: Home freezer appliance
IPC: F25D5/00
Filed: 1974-03-15
Abstract: 1456932 Ice-cream freezers RAYTHEON CO 15 March 1974 [19 April 1973] 11754/74 Heading F4H A freezer for ice-cream mix comprises a container 10 formed as an open top hollow cylinder 10 in which a double walled metal receptacle 12 open at top and bottom is removably positioned for retaining the mix, and the sealed space 13 in the receptacle walls is partially filled with a eutectic freeze solution 14, preferably KCl, having a freeze temperature above 0‹ F. and lower than that of the mix. A dasher 44 extends into the receptacle from a cover 16 fitting over the open ends of the cylinder and container. The drive of the dasher projects through the cover into the gear-box 28 of a motor assembly 24 mounted on the cover by a mount 30 preferably a bracket having a circumferential flange 34 fitting over projections 22 on the cover and secured thereto by screws. A housing 36 is mounted over the motor assembly 24 and secured to the flange by the same screws. Relative rotational movement between the receptacle and cover is prevented by interlocking means comprising at least one projection 18 on the cover seating in a recess 20 in the upper inner peripheral edge of the receptacle. The freeze solution is cooled prior to use in a refrigerator and may include a small percentage of glycerine to minimize expansion problems.
Patent GB-117701-A (GB)
IPC: E06B3/92
Abstract: 117,701. Soar, A. B., and Archer, C. F. Aug. 9, 1917. Elevated railways.-Doors, shutters, or the like comprise laths hung on tracks 7 by pintles 3 provided with ball bearings.
Patent GB-289069-A (GB)
Title: Improvements in or relating to casement windows
IPC: E06B3/26
Filed: 1928-04-21
Abstract: 289,069. Fenestra Fabrik fiir Eisenhochbau Ges. April 22, 1927, [Convention date]. Window frames; casements. - The window frame a and one sash b of the double casement window are each similarly formed in wrought iron with two right-angled flanges which abut when the sash is closed, forming a double joint f, g, enclosing a hollow space d. The second sash c may be hinged to the window frame, Fig. 3, or to the sash b, Fig. 1, and is adapted to form a flush joint when closed as shown.
Patent GB-592543-A (GB)
Title: Improvements in and relating to jointed pipes for use more particularly in connection with lubricators
IPC: F16L27/04
Filed: 1945-05-11
Abstract: 592,543. Articulated pipes. ODDY, C. G. May 11, 1945, No. 11889. [Classes 99 (i) and 99 (ii)] A jointed pipe system, particularly for use with lubricators, Fig. 1, has hardened steel balls h on the ends of its steel pipes g, housed in the adaptors j and spring urged by the springs k, which seat at one end on the adaptors and at the other on brass or like metallic cup washers 1 surrounding approximately half the balls, on to the union nuts i made of softer material than the balls h. In a modification, Fig 2, an adaptor t houses both the balls q and s of which the latter is spring urged against a union nut by a spring w seating on the cup washers u and v. The pipe system may consist entirely of lengths joined according to the above invention, which may also be used in conjunction with a system described in Specification 279,165, [Class 99 (i)], as illustrated by the pipe lengths a, b and c in Fig. 1. The above combinations may also be used with nipple adaptors described in Specification 269,603, [Class 99 (i)], or pumps as described in Specifications 592,539, 592,540 and 592,541.
Patent GB-590473-A (GB)
Title: Tuned circuit and system therefor
IPC: H03F3/54
Filed: 1944-06-22
Abstract: 590,473. Electric resonators; valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 22, 1944, No. 11921. Convention date, Sept. 26, 1942. [Classes 40 (iii) and 40 (v)] A tank circuit for use in an amplifier for waves of saw-tooth or other arbitrary shape, or in an oscillation-generator, comprises a coaxial or other transmission line which has a velocity of propagation independent of frequency, is an integral number of ftmdamental wave lengths long, and is closed upon itself so as to be resonant to harmonics as well as to the fundamental frequency, since'end effects are eliminated. The velocity of propagation is rendered independent of frequency by arranging that the usual transmission constants R, L, S, C shall be such that R/L=S/C, and uniformity is secured by using a number of small class A amplifiers 25, Fig. 4, evenly distributed around the endless resonator 5<11>. In this embodiment, the valves are excited in a phase relationship which is determined by a cathode beam B passing clockwise over target anodes P at such an angular speed that the resulting waves which travel clockwise round the resonator 5<11> are in additive phase for all the valves, while the waves which travel counter-clockwise cancel one another's effects, and owing to the endless form of the resonator, these conditions hold for harmonics as well as for the fundamental so that the wave-form is not distorted. The valves 25 are arranged to produce a sawtooth voltage, the condensers C being charged through resistances R until discharged rapidly through the cathode beam B. A second stage 25<1>, 25<111> of amplification may be used if necessary, the connections of the valves 25<1> being evenly spaced between those of the valves 25 so that the valve capacitances may be uniformly distributed. Waves of any desired form may be generated by suitably shaping the electrodes P. In an amplifier, Fig. 5 (not shown), for waves of arbitrary wave-form, the required phase relation between valves connected like the valves 25 to an endless resonator like the resonator 5<11> is obtained by connecting the grids of the valves to points evenly spaced along a transmission line which is reflectionlessly terminated and is fed with waves of the required form. In an oscillation generator, Fig. 6, the grid of each valve is connected to its plate through a #/2 path r, s, and the valves reinforce one another's oscillation for waves travelling-clockwise, but not for waves travelling anti-clockwise. In devices of the kinds described, lumped capacities may be connected between the valves in order to increase the uniformity of distribution of the capacity. Oscillations of any wave-form may be produced by arranging for different pairs of valves to develop different harmonics of suitable amplitude and phase. The resonator may be circular or may be folded. The line may be composed of continuous electrodes so as to have a continuously-distributed negative conductance as described in U.S.A. Specification 2,168,782.
Patent GB-1477455-A (GB)
Title: Releasable clamp primarily for use in scaffolding structures
IPC: E04G7/24
Filed: 1974-06-03
Abstract: 1477455 Clamps KWIKFORM Ltd 3 June 1974 [13 March 1973] 11924/73 Heading E2B A clamp comprises a pair of plates having aligned apertures and a connecting member transverse to the plates and pivotally supporting the plates, the plates diverging at an acute angle; in use, opposed portions of the boundary wall of each aperture are urged to engage an element at points spaced longitudinally thereof. The plates 10 and 12 have apertures 17, 19 and pivot on a connecting member 11, Fig. 1a. A spring 23 on a stud 20 urges the plates apart and when inoperative the plates abut pins 24 on the stud. The stud may be replaced by a turn buckle. The plates 50, 52, Fig. 2, are alternatively connected to a tension spring 63 and pivot about a member 51 when the ends of the plates are pressed together. The member 51 has hooked tongues 69, 70 which extend through holes in the plates and the plates may pivot about shoulders 71, 72, on the member. The member 51 may be between the spring and the elements 58a, 58b. In a further embodiment, Fig. 4, the plates 100, 102 are connected by a spring 113 at one end and may pivot about the edges of an aperture in an extension of one element 108b in which an element 108a is telescopically displaceable. The clamp may be joined, e.g. pivotally to coupling means 115, Fig. 8, comprising a U-shaped member having apertures for a wedging member 139 (which may also secure other forms of coupling means).
Patent GB-1423964-A (GB)
Title: Centrifugal melting and casting installations
Inventor: VAN IEPEREN DIRK-CHRISTIAN
IPC: B22D13/06
Filed: 1974-03-18
Abstract: 1423964 Centrifugal casting apparatus ELPHIAC SA 18 March 1974 [23 March 1973] 11940/74 Heading B3F [Also in Division F4] Apparatus for centrifugal casting comprises a mould 6 communicating with a crucible 5 via a refractory runner 7, a support 4 rotatable by a motor 2, an inductor 12 locatable around the crucible and movable away therefrom, and a vibration generator 16 which can be brought into contact with the support 4. A protective gas may be supplied to the crucible via a duct 9, a shaft 3 and a duct 10. In use, the crucible is filled with metal and the inductor 12 raised by a unit 13 until it surrounds the crucible. The vibration generator 16 is raised until its finger 18 bears against a contact element 19 on the support 4 and is actuated to vibrate the crucible while the metal therein is being melted. Both the inductor 12 and vibration generator 16 are then lowered to their inoperative positions and the support 4 rotated about the shaft 3 to force the metal into the mould 6.
Patent GB-728719-A (GB)
Title: Improvements in or relating to electric storage batteries
IPC: H01M50/434
Filed: 1953-04-30
Abstract: 728,719. Porous, fibrous sheet material for electric accumulators. DRY ACCUMULATOR CO., Ltd. April 30, 1953 [June 6, 1952], No. 12000/53. Class 96. [Also in Group XXXVI] Separators for lead-acid secondary cells of the " dry " type (i.e. of the kind for which plates and separators are assembled into a pack which is compressed and forced into a case and absorbs the whole of the electrolyte) are made by beating a slurry of acid-resistant absorbent mineral particles, e.g. kieselguhr, aluminium oxide, or a powdered ceramic (70 parts) and purified cellulose fibres, asbestos or cellulose derivatives (30 parts), a floating-agent and/or a colloid, and a little rubber latex, preferably pre-vulcanized, are added, and sheets formed by hand or machine.
Patent GB-471217-A (GB)
Title: Improvements in or relating to gyroscopic instruments
IPC: G01C19/44
Filed: 1936-04-28
Abstract: 471,217. Gyroscopic apparatus. REID, G. H. April 28, 1936, Nos. 12108 and 29184. [Class 97 (iii)] The rotor 1 and first gimbal ring 3 pivot about a first axis 4 in the second gimbal ring 5 which pivots about a second axis 13 perpendicular to the first axis in a supporting frame 14, encloses the volume swept by the rotor and first gimbal in rocking on the first axis and is visible during rotation through 360‹. In the directional gyroscope shown, Figs. 1 and 2, the second gimbal 5 is in the form of a sealed cylinder from which air is exhausted through the lower vertical bearing 13 and drawn in through the filter 11 and rotor driving jet 12. The bearing spindle 8 rigid with the gimbal 3 projects through one of the bearings in the cylinder 5 and carries a pointer 9 which is adapted in the position shown in Fig. 1, to indicate banking and carries a crank-pin 10. The bracket 14 which may be secured to an aeroplane dashboard carries a zero mark 16 and a guide 17 for a sliding rod with finger grips 18 and a Y-shaped fork 19 adapted when raised to embrace the pin 10 and centralize the gyro about both axes 4 and 13. The pointer 9 may carry suitably marked extensions 9A adapted to indicate pitch when the gimbal 5 is turned through 90‹ from the position shown in Fig. 1. In a modification the spindle 8 is hollow and provides the air inlet to the gimbal 5. At the inner end the spindle 8 has a driving jet and at the outer end a circular knob to enable the gyro to be set by direct manipulation. In further modification the gyro is set by the engagement of a spring plunger with a distorted conical member on the spindle 8. The air entering at the nozzle 12 may be electrically heated. In the form shown in Fig. 8, operation of the plunger 36 first centralizes the gimbal 5 about the axis 13 by the engagement of the spring urged roller 35 with a cam 31 on the gimbal 5 and then centralizes the gimbal 3 about the axis 4 by the engagement of the ramp 38 with a slide 19A carrying a fork 19 adapted when raised to catch the pin 10. The rotor may be electrically driven.
Patent GB-559070-A (GB)
Title: Improvements in or relating to optical projection systems
IPC: G02B17/08
Filed: 1942-08-28
Abstract: 559,070. Optical systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America). Aug. 28, 1942, No. 12119. Drawings to Specification. [Class 97 (i)] The subject-matter of this Specification is identical with that of Specifications 627,673. Specifications 452,148, 487,241, [both in Group XL], and 537,738 are referred to.
Patent GB-746819-A (GB)
Title: Improved method of operating a gas turbine engine
IPC: C10L1/18
Filed: 1951-05-03
Abstract: A fuel for gas turbine engines consists of a vanadium-containing petroleum residue fraction and a minor proportion of an aluminium compound, such as aluminium oxide, which is insoluble in the petroleum residue fraction.  The petroleum residue fraction may be a furnace oil and the amount of aluminium compound added may be such that the fuel contains up to 3 per cent of aluminium.  The presence of the aluminium compound prevents or minimizes the build-up of inorganic deposits or formation of scale on the turbine blades and other parts of the engine and thereby prevents or minimizes corrosion.  In an example, powdered bauxite is added to a petroleum residue fraction.  According to the Provisional Specification, other oil-soluble or oil-insoluble compounds of alkali metals, alkaline earth metals, magnesium, aluminium, zinc, copper or lead may be employed as set out in Provisional Specification 745,621, instead of the aluminium compound.  Specification 697,101 is referred to.
Patent GB-127570-A (GB)
Title: Improvements relating to Machines for Charging Slabs, Billets and the like into Furnaces.
Inventor: BROSIUS EDGAR E
IPC: B21J13/10
Filed: 1919-05-14
Abstract: 127,570. Brosius, E. E. May 25, 1918, [Convention date]. Lifting-dogs.-Consists of a,device for charging and discharging ingots, billets, &c. The hollow arm or peel 2 is rotatably mounted in bearings 3, 7 suspended from the run-way of a crane &c., the bearing 7 being counterweighted at 37. In the forward end of the peel is rotatably mounted, by means of a hub 13, a casing 12, within which are rotatably mounted a guide-block 18 and a screwed sleeve 16. The sleeve 16 engages a screw 15 having at its lower end an eye 19 engaging the centre pin of toggle-links 21, 22 connected to tongs 27 mounted in slots in the guide-block 18. A bevel-wheel 17 screwed to the sleeve 16 gears with a bevel 29 secured to a torsion rod 30 rotatably mounted in the bearing 13 and carrying at its other end an extension 31 passing through the bearing 7. On the extension 31 is mounted a hand-wheel 32 and a ratchet-wheel 38 engaged by a pawl 39 mounted on the cranked end 40, Fig. 3, of a pa.wl lever, the arrangement being such that a. toggle action is produced which increases the locking power of the pawl. In operation, clockwise movement of the hand-wheel 32, by raising the screw 15, closes the tongs 27 on the ingot, rotation to allow release being prevented by the pawl 39 and a second pawl 44 and ratchetwheel 43 between the bearing 7 and the peel. If it is desired to turn the ingot in an horizontal plane, this is effected by further clockwise rotation of the hand-wheel, the effect of which is that the screw 15, being no longer able to rise in the sleeve 16, is instead carried round therewith, thus rotating the ingot.
Patent GB-1499893-A (GB)
Title: Vehicle wheel rims
IPC: B60B5/02
Filed: 1975-03-24
Abstract: 1499893 Vehicle wheel rims MICHELIN ET CIE 24 March 1975 [25 March 1974] 12185/75 Heading B7C A moulded vehicle wheel rim includes tension resistant reinforcing means at least partially embedded in the moulded material and positioned alongside the inside surface of at least the corner(s) having the greatest curvature so as to oppose tension stress acting in the corner(s) and transversely of the circumferential direction of the rim. The modulus of elasticity of the reinforcing means is greater than that of the material from which the rim is moulded. As illustrated each corner 15, 16, 17 of the one-piece rim is reinforced by means extending only over a part of the width of the rim whereas in a modified embodiment (Figs. 2 and 4, not shown) the reinforcing means comprises two wires each of which passes repeatedly across the rim and about circumferential wires (29) positioned in the bead retaining flanges. The Specification also discloses a two-part rim having a removable tyre bead retaining flange (Fig. 3, not shown). The rim may be of a light metal alloy or a synthetic resin and the reinforcing means may comprise wires (as indicated above) steel cables, glass fibres or carbon fibres; or meshes; or layers formed from particles, or short lengths, of reinforcing materials dispersed at random in a matrix.
Patent GB-820911-A (GB)
Title: Three-part resilient rotary shaft connection
IPC: F16D3/74
Filed: 1957-04-15
Abstract: 820,911. Shaft couplings. HAPP, H., HARTZ, H., and BARDT, R. April 15, 1957 [April 14, 1956; June 16, 1956], No. 12216/57. Class 80 (2). A clamped resilient shaft coupling between universal joints fast with shafts 1, 13 on a motor vehicle comprises a hollow shaft 2 fast with the shaft 1 and freely supporting the entire axial length of an inner shaft 11 with which the shaft 13 is in splined engagement, a sleeve 10 secured to the inner shaft 11 surrounding the whole assembly and being in driving engagement with the hollow shaft 2 through axially compressed resilient elements 6. A coating of polyamide lies between the shafts 2, 11. The resilient elements consist of rubber or like rings 6, Figs. 2, 3, attached to metal discs 4, 7. The discs 4 have notches 5 which engage axial ribs 3 along the outside of the hollow shaft 2, and the discs 7, which are of greater external diameter, have notches 8 engaging axial ribs 9 inside the sleeve 10. Relatively wide notches 21 for the ribs 3 allow the discs 7 to turn a limited amount on the hollow shaft 2. The whole assembly is compressed axially by lightening a nut 14 upon the sleeve 10, this lightening also compressing vibration damping friction discs 16 on to a flange 15 welded to the hollow shaft 2. Alternatively, the friction rings 16 may be replaced by rings of soft rubber. In a modification, the rubber rings &c. 6 of Figs. 1 . . . 3 are replaced by sleeves of rubber 6, Fig. 4, between coaxial sleeves 17, 18, 20. The inner and outer sleeves are peripherally gapped, as at 19, to receive the ribs 3, 9 on the hollow shaft 2 and the sleeve 10. A number of the resilient units shown in Fig. 4 are used, fitted together end-to-end, and are provided with claws 21 on their middle sleeves 20 which interengage. As a further modification the rubber rings &c. 6 of Figs. 1 . . . 3 are replaced by rubber rings 26, Fig. 6, secured between metal discs 23, 25 of the shape shown. With this arrangement, relative turning movement between each pair of metal discs 23, 25, accompanying shear of the rubber ring 26 when the coupling is under load, causes axial separation of the metal rings, and thus increases the frictional force acting on the rings 15, &c. to dampen vibrations. To increase the amount by which the discs 4, 7, Fig. 3, can be turned relatively to each other, additional metal discs and rubber rings can be inserted between the discs 4, 7. These additional discs do not engage with the ribs 3, 9 on the hollow shaft 2 and the sleeve 10. To obtain a varying spring characteristic for the coupling, the notches 8 of each resilient element are made of different sizes, so that each pair of discs 4, 7, &c. takes up drive in succession with increasing torque transmitted. The thickness of the rubber rings 6, and the nature of the rubber used, may also be varied to alter the spring characteristics.
Patent GB-494685-A (GB)
Title: Improvements in or relating to thermionic valve oscillation generators
IPC: H03K4/34
Filed: 1937-04-29
Abstract: 494,685. Valve generating circuits. BAIRD TELEVISION, Ltd., and TINGLEY, G. R. April 29, 1937, No. 12221. [Class 40 (v)] In a scanning oscillator of the type in which anode and grid circuits of a thermionic valve 1 are magnetically coupled by means of a transformer 2 to an extent sufficient to produce sawtooth oscillations whose frequency is determined by resistance 3, an auxiliary valve 10 having a control grid is reversely connected in parallel across the anode to cathode space of the oscillating valve. Synchronizing signals or a substantially direct current signal derived for example as described in Specification 472,686, [Group XXXV], may be applied to the grid of the valve 10 to control the initiation of the scanning process. The valve 10 may be so biassed that it acts as a separator of mixed picture and synchronizing signals. Specifications 456,138 and 465,344 also are referred to.
Patent GB-142813-A (GB)
Title: Improvements in the sounding boards of pianofortes and grand pianos for improving their tone
IPC: G10C3/06
Filed: 1920-05-03
Abstract: 142,813. Brandes, A. May 2, 1919, [Convention date]. Pianoforte soundboards are reinforced by ribs 3, the length and width of which fill up almost the whole of the space between the usual ribs 2. The ribs 3 are shorter than the latter, but are similarly bevelled off at their ends. The ribs are arranged transversely to the direction of the fibres of the wood of the soundboard.
Patent GB-1351194-A (GB)
Title: Process for preparing linear polyester
IPC: C08G63/87
Filed: 1971-04-29
Abstract: 1351194 Polycondensation catalysts for polyesters MITSUBISHI RAYON CO Ltd 29 April 1971 [26 May 1970 (4)] 12265/71 Heading C3R A process for preparing a polyester containing less than 1% by weight, based on the weight of the polyester, of diethylene glycol comprises carrying out the polycondensation in the presence of an antimony compound and a germanium compound, both compounds being miscible in the polycondensation system, and a phosphoric ester, wherein at least 0À035% of a mole of antimony atoms and no more than 0À02% of a mole of germanium atoms are added per mole of recurring unit of the resultant polyester and the atomic ratio of the germanium atom to the antimony atom is no more than 0À5. The Examples describe preparing polyesters from ethylene glycol and dimethyl terephthalate, optionally with dimethyl isophthalate, using the following polycondensation catalysts, optionally as solutions in ethylene glycol, (a) the trimethyl, triethyl or triphenyl esters of phosphoric acid, (b) antimony trioxide, antimony acetate or antimony triethoxide and (c) amorphous or crystalline germanium dioxide.
Patent GB-623506-A (GB)
Title: Improvements in or relating to ball-joints
IPC: F16C11/08
Filed: 1947-05-06
Abstract: 623,506. Ball and socket joints. JERMYN & POINTER, Ltd., JERMYN, H. J., and POINTER, J. L. May 6, 1947, No. 12277. (Class 65 (ii)] A joint comprising a housing 10 and a ball-headed pin 16 is characterised in that the ball-head 18 of the pin has attached thereto a cap 19 having external dimensions greater than the diameter of the ball-head, whereby should the ball-head be pulled through its seat in the housing the cap will prevent separation of the housing and pin. The ball-head is seated in a hard-metal sleeve 132 press-fitted into the housing while the cap, which is formed integral with the ball-head and comprises a portion of a sphere concentric with the latter, seats in a member 21 adapted to slide in the sleeve. A spring 23 is interposed between the cap-seating member and a cover 24 held in position by a circlip 25. A lubricator 27 and a dust cover 30 are provided. In a modification the skirt of the sleeve is omitted and the cap-seating member slides in the bore of the housing. In a further modification the cap is made detachable from the ball-head.