baber/WOPTO huggingface dataset:
Patent GB-1343249-A (GB)
Title: Helicopter toy
IPC: A63H27/04
Filed: 1972-06-27
Abstract: 1343249 Toy helicopters MATTEL Inc 27 June 1972 [16 Dec 1971] 29950/72 Heading A6S A toy helicopter 10 is mounted at the end of a boom 18 which can rotate about, and pivot up-and-down, relatively to a pylon 12, the boom being twisted about its own axis so as to make the motor powered rotor 16 of the helicopter draw the machine either forward or backwards, as desired. The boom 18 consists of upper and lower struts 34, 36 relatively axially movable with respect to each other, and pivoted to a bracket 28 journalled on the pylon 12 and to the helicopter 10. The struts 34, 36 of the boom 18 act in the manner of a parallelogram linkage to keep the helicopter 10 upright irrespective of its height. An electric motor 26 in the pylon housing drives through a flexible shaft 50 passed through the lower boom strut 36 to the helicopter rotor 16. Turning a bellcrank lever 68 about its fulcrum 70 on the pylon housing raises and lowers a bush 72 connected by a link (74), Fig. 3 (not shown), to an arm (76) extending at right angles from the inner end of the boom upper strut 34, which is accordingly twisted about its axis. As the upper boom strut 34 twists, it tilts the helicopter downwards or upwards, so that its rotor 16 pulls the helicopter 10 forwards or backwards. The strut 34 is biassed by a spring (84), Fig. 3 (not shown), engaged with the end of the arm (76) on the strut to turn to the median position with the helicopter upright. The helicopter 10 is raised from the ground both by the pull of its rotor 16 and also by the biass of a spring 59 connected between the pylon 12 and the boom 18. Control is effected by actuation of a remotelypositioned joystick 20. Fore-and-aft movement of the joystick 20 acts through a first rod 91 upon a rheostat 92 in the circuit of a battery 94 powering the motor 26 driving the helicopter rotor 16. Sideways pivoting of the joystick 20 turns a bracket 98 about its axis 100 so that a sideways projecting arm (110), Fig. 4 (not shown), turns a bellcrank lever 114, 116 within the joystick housing, thus sliding a second rod 88 connected to the bellcrank lever 68 in the pylon, to tilt the helicopter 10.
Patent GB-341035-A (GB)
Title: Improvements in tractor wheels
IPC: B60B15/02
Filed: 1929-10-03
Abstract: 341,035. Tractor wheels. DAWE, J., 38, Mayfield Road, Sutton, Surrey, and BARRELL, M. E. G., 17, Manson Place, Queens Gate, London. Oct. 3, 1929, No. 30033. [Class 144 (i).] Tractor wheels of the kind described in Specification 263,965, [Class 144 (i), Wheels for vehicles], in which the rim consists of spaced edge-on rings r, of plain or sinuous form, are fitted with cleats c projecting beyond the outer edges of the rings. The cleats may be riveted or bolted to the rings and may be in alignment with, or offset in relation to, the rings, as shown in Figs. 2, 4 and Fig. 5 respectively.
Patent GB-631081-A (GB)
Title: Improvements in and relating to apparatus for levelling or straightening metal sheets
IPC: B21D1/05
Filed: 1947-11-12
Abstract: 631,081. Straightening; stretching. MAYER, E. Nov. 12, 1947, No. 30078. Convention date, March 12, 1940. [Class 83 (iv)] In a machine for straightening sheets, roller levellers are combined with stretching means. A sheet S is fed through a stationary roller leveller 11 to a roller leveller 12 on a slide 17. The rollers 15, 16 of the machine 12 rotate at a higher speed than those of the machine 11 and apply a stretching force on the sheet between the machines. The control of the movement of the slide 17 is effected by an apertured piston connected to the slide 17 in a cylinder 23 with fluid byepass controlled by an adjustable valve 27. In operation, the creep of the leveller 12 in the direction F is opposed by the throttling of the flow of fluid from one end of the cylinder by the valve 27 and by the apertured piston. The slide is returned by a spring 28. Quick return may be produced by a clack valve in the piston aperture. In a modification the stretching is effected by the movement of the slide by a pressure cylinder controlled by a valve operated by a flag switch.
Patent GB-504045-A (GB)
Title: Improvements in or relating to shell-type steam and hotwater boilers and the like
IPC: F24H1/40
Filed: 1937-11-04
Abstract: 504,045. Supporting steam boilers &c. CROMPTON, C. E. Nov. 4, 1937, No. 30283. [Class 123(ii)] Vertical shell-type steam and hot water boilers &c. A containing a tube nest or like structure are mounted, so as to be turned into a horizontal position to facilitate cleaning, on trunnions C<1> in a frame comprising two standards C, and a burner D is mounted on one of them so that it can be moved clear of the space below the shell without disconnection from the fuel supply pipe. A flue pipe E is also supported by this standard and is connected to a smoke box F removably mounted on the shell. The other standard supports a control column G connected by pipes G<1>, G<2> with the steam and water spaces of the boiler and carrying fuel, feedwater supply and steam delivery controls and other instruments usually mounted on the boiler. The internal tube nest may be connected by vertical bolts to a flange ring at the upper end of the shell, at least two of the bolts being long enough to act as supports for the rest after slackening to enable the joint at the base to bo broken. Guides are then secured to the bottom plate and rollers to the upper end of the nest whereupon the shell is turned and anchored horizontally to a cross-tie C<2> connecting the standards. After removal of the nuts from the longer bolts the nest is removed on bogies.
Patent GB-813676-A (GB)
Title: Improvements in or relating to delay networks incorporating diode amplifiers
IPC: G06F1/10
Filed: 1957-09-27
Abstract: 813,676. Semi-conductor pulse delaying and frequency dividing circuits. SIEMENS & HALSKE A.G. Sept. 27, 1957 [Sept. 28, 1956], No. 30399/57. Class 40 (6). In a circuit comprising a series of diode amplifiers D1, Fig. 3, an input pulse E1, Fig. 5, is applied to the first stage fed with clock pulses S1 to generate a pulse which is fed over a forward-conducting only coupling to the next stage fed with phase-shifted clock pulses S2 so that the input pulse is fed through the circuit to the output A4 in synchronism with the clock pulses. The input pulse E1 is fed over normal diode D2 to the carrier storage diode D1 to establish a charge storage condition. After the termination of the pulse E1 the positive-going clock pulse Sl is applied in the reverse direction to diode D1 to generate a pulse across resistor R2. This pulse is gated by pulse S1 in the AND circuit T1 to produce the pulse A1 as input to the next stage. A small pulse is produced across resistor R2 during the input pulse, Fig. 2 (not shown), but this does not pass to the next stage due to the circuit T1. The pulse is passed through the amplifier stages and fed out as pulse A4. The circuits T1 may be replaced by amplifiers which are insensitive to pulses below a certain amplitude, Fig. 4 (not shown). Transistor amplifiers K, Fig. 6, may be employed connected in the common collector arrangement with the base biased negatively so that small positive-going pulses are ineffective. The base is biased over resistors W1, W2 while the junction of diodes D1, D2 is prevented from falling appreciably below earth due to diode D3 conducting. In a further modification, Figs. 7 and 8 (not shown), a series of four clock pulses is employed with each phase-shifted one quarter of a cycle with respect to the next. The output pulse in any stage can be delayed from one to three quarters of a cycle and by employing six stages of three quarters and one of a half a total delay of five cycles can be achieved. Pulse frequency division.-By connecting the output A4 to the input E 1 a division of two may be obtained or in the modification of Fig. 7 (not shown) a division of five may be achieved, the output being taken from any stage.
Patent GB-153024-A (GB)
Title: Improvements in separable boxes
IPC: B65D6/24
Filed: 1920-10-27
Abstract: 153,024. Nikolaus, H. Feb. 26, 1919, [Convention date]. Knock-down boxes.-A separable part box comprises sides 1, 2, Fig. 5, and ends 3, 4, slidably connected together as shown by inter-engaging metal plates 7, 8, and a bottom 6 fitted with plates 7 similarly engaging with plates 8 on the lower edges of the ends. Fittings 9, Fig. 6, on the lower edge of the side 2 also engage in co-operating fittings 10 on the bottom, and a pivoted part 14 on the bottom is turned down to engage a fitting 10 on the side 1 and held in the engaged position by a friction latch 15. The lid 5, Fig. 6, has on three sides fittings 10 adapted to engage cooperating parts 9 on the ends and rear side, and in front fittings 11 which are inserted through holes in the lid and engage plates 8 on the upper edge of the front wall 1; the fittings 11 are mounted on a separate strip 12 which is afterwards secured to the lid by means of a fixing screw 13.
Patent GB-920319-A (GB)
Title: Apparatus and method for texturizing or bulking a compound yarn
IPC: D02G1/00
Filed: 1961-08-23
Abstract: 920,319. Spinning yarns. MONSANTO CHEMICAL CO. Aug. 23, 1961 [Sept. 6, 1960], No. 30416/61. Classes 120 (2) and 120 (3). [Also in Group XXV] In a method of making bulked, compound yarn, a first yarn 22 is advanced through the internal longitudinal bore 17 of a member 14 rotating within a stuffing or crimping chamber 21 so that the yarn is irregularly crimped and twisted, and simultaneously a second yarn 29 is passed through an opening 28 in the chamber and along a helical groove 27 on the exterior of a tapered portion of the member 14 to impart the same twist to the second yarn and encompass the first twisted yarn therewith. The yarns are softened and the crimp set therein by a hot fluid, e.g. steam, applied through a pipe 31. The cored yarn product is withdrawn from a flared opening leading from a constricted portion of the chamber.
Patent GB-1046794-A (GB)
Title: Improvements in electromagnetic relays and contact arrangements therefore
IPC: H01H11/00
Filed: 1963-07-31
Abstract: 1,046,794. Electromagnetic relays-electrically tripped switches. A. O. SMITH CORPORATION. July 31, 1963 [April 19, 1963], No. 30444/63. Heading H2B. Plunger-operated bridging contact units having fixed contact members 59 extending from opposite ends also have terminal screws 65 which secure supply leads (not shown) and attach the contact unit to mounting blocks 37 of a relay frame 4. The frame 4 is secured to a case 2 and has pads 38 engaging projections 16 of a coil former 11 to urge it against a resilient pad (not shown) in the base of the case 2. An insulating actuator 29 is moulded to the armature 28 and slides in slots 33 in the frame 4. Two such frames 4 with eight contact units 5 can be used with the alternative actuator 36 shown. Buttons 35 project from the actuator 29 through holes 44 in a top plate 42 and can be manually operated. Fig. 11 shows a cover 6 which may replace the top plate 42 and is provided with a latch 71 which engages a projection 34 on the actuator 29 to retain it in the operated position. The latch 71 is released by a plunger 83 operable by an electromagnet or manual depression of nut 86.
Patent GB-1097583-A (GB)
Title: Improvements in or relating to the treatment of solid/liquid suspensions
Inventor: ABSON JAMES WILLIAM
IPC: C02F11/20
Filed: 1963-08-01
Abstract: Solid/liquid suspensions, such as sewage sludges, are frozen by direct contact with immiscible evaporating liquid refrigerants such as propane or butane, thawed and are then dewatered more easily. Aluminium ions may be added to the suspension before freezing.
Patent GB-870236-A (GB)
Title: Improvements in or relating to sectional handles, for example for devices for operating on floors
IPC: A47L9/24
Filed: 1959-09-08
Abstract: 870,236. Hand-tool handles. SCHMIDT, H. Sept. 8, 1959, No. 30575/59. Class 61. A sectional handle for example for a suction cleaner or floor polisher the sections are releasably connected by fit-in connections with conical bearing surfaces and an internal member fitted partly within each of two tubular sections which are connected together. As shown in Fig. 1 two tubes 17, 18 terminate on their inner wall in a slightly conical surface 19 their point of abutment being reinforced by an internal sleeve 20 the outer surface of which has the same conical form as the faces 19. The end end surfaces of the tubes 17, 18 are stepped and separated by a gap 22. In a modification the gap is formed between bevelled end surfaces of the tubes. In another modification, Fig. 3, the tube 26 terminates in a conically tapered outer face 27 upon which the tube 28 bears with a correspondingly formed inner surface 29. A sleeve 30 is fitted into the two tube ends and is secured in the longitudinal direction by an annular surface 31 on the inner tube wall. The internal members may be constructed as solid bodies.
Patent GB-1122307-A (GB)
Title: Production of moulds for metal casting
Inventor: BODDEY RONALD FREDERICK
IPC: B22C9/00
Filed: 1965-07-19
Abstract: <FORM:1122307/C3/1> A mould for metal casting comprises a vessel 1 formed of a composition comprising particulate refractory material and organic fibrous material bonded together, the said vessel being surrounded with and supported by packed particulate refractory material 2.  The supporting particulate refractory material may be bonded, e.g. by clay, silicate or resin, or may be unbonded. The refractory material (97-65%) of the vessel 1 may be sand, grog chamotte, sillimanite, alumina or any refractory silicate and the organic fibrous material (2-25%) is preferably cellulose, e.g. repulped newsprint.  The binder (1-10%) may be sodium silicate, a clay such as bentonite or an organic material such as sulphite lye, a gum or a synthetic resin.  The vessel 1 is formed by making an aqueous slurry of particulate refractory material, organic fibrous material and a binder, charging the slurry into the walls of a chamber formed of mesh material to the required shape and expressing the aqueous medium from the slurry through the mesh walls to deposit the body of the solid constituents thereon.
Patent GB-694517-A (GB)
Title: Improvements in or relating to devices for focussing an electron beam
Inventor: MERY WILLIAM ALAN MONTGO
IPC: H01J29/54
Filed: 1950-12-15
Abstract: 694,517. Cathode-ray tubes. KOLSTER BRANDES, Ltd. Dec. 7, 1951 [Dec. 15, 1950], No. 30651/50. Class 39(i) A focusing and centering arrangement comprises a coil arranged over a magnetic cylindrical sleeve and a magnetic plate which comprises a central aperture eccentrically adjustable with relation to the beam. The focusing coil 4 is wound on a bobbin 5 and is enclosed by a magnetic sleeve 1, steel shroud 6, end cap 7, secured to the mounting brackets 10, and the dished slidable pole-piece 8 which preferably should face the tube screen. An aluminium angle bar 12 riveted to the member 7 holds the member 8 and carries a stirrup 15 for securing the tube neck; the bar 12 may be supplemented or replaced by spring clips carried by the member 7. Links 16, 17 are hinged and riveted respectively to the member 8 which can be radially adjusted by the spindles 24, 25 which have eccentric bearing surfaces and are rotated by wheels 26. Springs 27 hold the wheels in frictional engagement with the raised lugs 23 on the cap 7. Particulars of the coil, magnetic gap and tube voltages are included.
Patent GB-1504011-A (GB)
Title: Clutch plate assembly
IPC: F16F15/129
Filed: 1975-07-22
Abstract: 1504011 Mounting clutch plates on hubs LUK LAMELLEN UND KUPPLUNGSBAU GmbH 22 July 1975 [27 July 1974] 30661/75 Heading F2U A clutch plate 1 to 3 is resiliently mounted on a hub 5 having fixed plates 4, 6 spaced apart to form a gap for a resiliently-loaded friction device 8 to 12 which is inoperative over an initial range and operable over a further range of relative movement between the clutch plate and hub. The plate 6 is fixed to the hub plate 4 by rivets and the counter-plate 3 is fixed to the clutch plate 1 by rivets 2, 2<SP>1</SP> and 2<SP>11</SP>. Further friction devices are also provided to act throughout the ranges of movement, these being friction plates 18, 21 loaded by a spring 19 and washer 20. The friction device 8 to 12 consists of friction plates 9, 10, a spring 11, an intermediate plate 12 engaging the plate 6 by a projection 12a and a friction plate 8 which has radial arms embracing a pair of helical springs 14 and end plates 14a of the springs. In the drawings A is the traction direction and B the opposite direction in which the road wheels drive the engine. Over the range A 1  (or B 1 ) only the helical spring 15 is effective (besides the friction plates 18, 21). From A 1  to A 2  the effect of the spring 16 is added to spring 15 while the friction plate 8 is carried around by the friction plates 9, 10. From A 2  to A 3  the rivet 2<SP>1</SP> acts on the friction plate 8 to compress the pair of springs 14. From A 3  to A 4  the effect of a pair of springs 17 is added to the limit provided by abutment of the rivet 2<SP>11</SP> in hub plate aperture 31. All the helical springs are assembled in a prestressed condition. In a second embodiment, Fig. 5 (not shown), the friction device (44) is disposed in the gap between end plates (41) riveted to the hub (40) and the friction plate 8 is replaced by a pair of plates (45). In a third embodiment, Fig. 6 (not shown), the friction device (67) is disposed in the gap between end plates (64), and the friction plate 8 is replaced by a friction plate (68).
Patent GB-851592-A (GB)
Title: Improvements in or relating to optical viewing systems, e.g. periscopes
Inventor: WOODS ALBERT JOHN
IPC: G02B23/08
Filed: 1955-10-27
Abstract: 851,592. Telescopes. KELVIN & HUGHES Ltd. Jan. 28, 1957 [Oct. 27, 1955], No. 30754/55. Class 97(1) An optical viewing system, such as a periscope has an objective lens device and an erector lens device, a field lens therebetween and an eyepiece lens device, the devices being of such large size and relative disposition that the stop or diaphragm of the erector is imaged by the eyepiece at an exit pupil at least nine inches from the eyepiece, with an exit pupil size of at least four and a half inches in one direction and at least three inches in any other direction. By this means the image formed by the system may be seen by both eyes of an observer. Numerical data are given for an example of the system shown in which the objective is formed of lenses 25-28, the field lens by iens 30, the erector by lenses 32-37 and the eyepiece by lenses 42-45. Data are also given for one example in which the objective is a doublet, the erector formed of two doublet identical with the objective and the eyepiece of two simple space plano-convex lenses.
Patent GB-439217-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/10
Filed: 1934-10-26
Abstract: 439,217. Transformers. BRACKENSEY, A. H., and FRANCO-BRITISH ELECTRICAL CO., Ltd., 25, Oxford Street, London. Oct. 26, 1934, No. 30823. Drawings to Specification. [Classes 38 (ii) and 38 (iv)] Comprises a transformer for supplying neon &c. discharge tubes, in which the primary and secondary windings are mounted on the centre limb of the core and the secondary. windings are connected together at one end and so arranged that the other ends are of the same polarity so that the windings can be used separately for supplying individual loads or in parallel for supplying a single large load. Adjustable magnetic shunts are provided for effecting regulation.
Patent GB-159661-A (GB)
Title: Apparatus for facilitating the mounting of cylinder blocks on internal combustion engines
IPC: B25B27/00
Filed: 1919-12-11
Abstract: 159,661. Hester, G. E. Dec. 11, 1919. Pistons.-The. insertions of the pistons in a block of cylinders in mounting the latter upon the crank cases, is facilitated by compressing the piston-rings between clamps C adjustably secured to a hinged frame A, which has telescopic legs E. The piston heads project above the clamps upon which the cylinder block is placed. The frame and cylinders are then lowered until the frame rests upon the crank casing, whereupon the frame is opened and removed.
Patent GB-631084-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1947-11-24
Abstract: 631,084. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 24, 1947, No. 31076. Convention date, Jan. 28, 1943. [Class 39 (i)] In a magnetron comprising an anode block 10 having a cathode space 14 and resonators 15 between anode segments 16, alternate . segments are strapped together by a ring strap 25 having projections 28, the strap 25 being located in a stepped recess formed in one end of the anode segments. Preferably the intermediate segments are strapped together by a second ring strap located in a similar stepped recess at the other end of the anode segments, as shown in Fig. 3. The projections 28 of the straps 25 fit into a shallow step 24, the intermediate portions 27 of the straps being spaced from intermediate segments by means of a second stepped recess 26, and the projections 28 are soldered to intermediate anode segments. In a modification, Fig. 5, the strap extensions 28<1> have perpendicular flanges 29. The anode edge may be peened at 31 instead of or in addition to the soldering to hold the strap in place. The anode block 10 is recessed at each end to provide end spaces through which pass the leads 17, Fig. 1, to the heater of an indirectly heated cathode. The leads 17 are connected to discs 20 at the ends of the cathode, the discs 20 being carried on insulating plugs fitting into the cathode, Fig. 2 (not shown). An output coupling loop 22 is preferably displaced 90 degrees from the leads 17. The straps are preferably of copper. Specification 588,916 is referred to.
Patent GB-767394-A (GB)
Title: Copolyesters
IPC: C08G63/672
Filed: 1952-12-10
Abstract: A polyglycol terephthalate having an improved dye affinity is derived from terephthalic acid, ethylene glycol and a polyethylene glycol having an average molecular weight of 282-986.  The polyester is made by effecting esterinterchange between dimethyl terephthalate, ethylene glycol and polyethylene glycol in presence of a catalyst (e.g. litharge) at 140-220 DEG  C. and polymerizing the resulting glycol esters at 230-290 DEG  C. and 0.05-5.0 mm. of Hg. pressure. Specifications 578,079, [Group IV], and 682,866 are referred to.
Patent GB-630241-A (GB)
Title: Improved method of joining glass parts by fusion
IPC: H01J5/24
Filed: 1947-11-26
Abstract: 630,241. Glass. PHILIPS ELECTRICAL, Ltd. Nov. 26, 1947, No. 31348. Convention date, Sept. 10, 1946. [Class 56] [Also in Group XL(a)] In the joining of glass parts by fusion, of which parts at least one is hollow and which parts after fusing together (e.g. the bulb and base of an electric discharge tube) enclose elements sensitive to heat or contact with combustion gases  (e.g. the electrode system of the tube), the edges of the parts to be joined are at first spaced apart so that the sensitive elements are, at least for the greater part, located outside the hollow part. The edges are melted whilst thus spaced apart and are then brought together and the fusion completed. During the melting of the edges the heat sensitive element may be cooled, e.g. by an inert gas stream. As the edges of the glass parts are already in a liquid state when they are brought together the combustion products of the fusing jets and the heat therefrom do not enter the closed tube. In the form shown the bulb 1 and base 2 are initially separated by a distance greater than the height of the electrode assembly 3.