baber/WOPTO huggingface dataset:
Patent GB-197870-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/36
Filed: 1922-07-12
Abstract: 197,870. British Thomson - Houston Co., Ltd., (General Electric Co.). July 12, 1922. Windings. - In a high-voltage or other machine having two or m o r e independent windings of different inductances brought out to separate commutators, the thickness of the brushes with relation to the bars of the several commutators is such as to compensate the differences in inductance of the various windings, the windings of high inductance thereby being given a longer time or short-circuit than those of low inductance. Fig. 1 shows an armature with high and low reactance windings 6, 5 at the bottoms and tops of the slots respectively connected to commutators 7, 8. The brushes 9, 10 are of such widths as to allow a greater time interval B<1>, B<2>, Fig. 3, for reversal of the current in the lower winding 6 than the interval A<1>, A<2> allowed for the winding 5. Alternatively, the brush widths may be equal and the difference in shortcircuit period may be obtained by a difference in the diameters of the commutators.
Patent GB-1044245-A (GB)
Title: Nitrososemicarbazides
IPC: C07C281/06
Filed: 1965-05-06
Abstract: Compounds of the general formula <FORM:1044245/C2/1> in which R is alkyl, substituted alkyl alicyclic, substituted alicyclic, aralkyl or substituted aralkyl group and each of R1 and R11 is H or an alkyl, substituted alkyl, alicyclic substituted alicyclic, aralkyl or substituted aralkyl group with the proviso that R is not cyclohexyl or isopropyl when R1 and R11 are H, are prepared by nitrosating the corresponding semicarbazide.  dl-1-Bornysemicarbazide is prepared from the semicarbazone in turn prepared from camphor.  Similarly d-1-fenchylsemicarbazide is prepared.  Pharmaceutical compositions having hypotensive properties comprise the compounds of the invention and a carrier therefor.
Patent GB-515766-A (GB)
Title: Improved multiple chain wheel and clutch unit for the hub of a cycle wheel
IPC: B62M9/10
Filed: 1938-06-29
Abstract: 515,766. Free-wheel and change-speed hubs for cycles &c. CAMILLIS, L. June 29, 1938, No. 19222. [Class 136 (ii)] In a free-wheel clutch and multiple chain-wheel unit having an inner sleeve adapted to screw on the hub of a cycle &c. wheel, two of the chain-wheels each provide ball-bearing races located at each end of the unit, and complementary bearings are provided respectively on the sleeve and on a screwed race-cone engaging therewith. A sleeve 1 of stepped formation is internally screw-threaded at 2 for engagement with the wheel hub, and is provided at the ends with a screwed ball-race cone 4 and a collar 7 respectively forming the inner races for ball bearings 9, 10 of different diameters, on which are mounted chain wheels 12, 13, 14. The largest wheel 12 is formed with an annulus 19 constituting the outer race for the ball bearing 9 and with an externally screw-threaded boss 15 engaging an internally threaded boss 18 or the intermediate chain wheel 13, which has an externally threaded boss 17 receiving the smallest chain wheel 14 and also constituting' the outer race for the ball bearing 10. The boss 15 of the wheel 12 is formed with internal teeth coacting with spring-urged pawls 22 carried by the sleeve 1.
Patent GB-1357663-A (GB)
Title: Turtle tank
IPC: A01K63/00
Filed: 1972-04-26
Abstract: 1357663 Aquaria STERNCO INDUSTRIES Inc 26 April 1972 [22 Dec 1971] 19310/72 Heading A1A A turtle tank comprises an inner container 11, which is nested in and supported by an outer container 12 and which has an elevated portion 20, forming an island extending above the water level and perforations 19 through which waste matter falls into a compartment 17 formed between the bases 15 and 16 of the two containers. To facilitate cleaning, the inner container 11 is extracted from the outer 12 by manually grasping its peripheral flange 13 which extends over, and normally bears on, a similar flange 14 on the outer container.
Patent GB-1029702-A (GB)
Title: Positive-clutch synchroniser mechanisms
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16D23/06
Filed: 1964-05-09
Abstract: 1,029,702. Positive clutches. VAUXHALL MOTORS Ltd. April 8, 1965 [May 9, 1964], No. 19430/64. Heading F2C. A positive clutch for selectively connecting either of two freely mounted gears 10, 12 to a shaft 14 in a motor vehicle change-speed gear comprises a sleeve 22 axially slidable on splines 20 of the shaft 14 to engage dogs 28, 30 of the gears 10, 12; synchronizer rings 44, 46 having frusto-conical surfaces 40, 42 for frictional engagement with corresponding surfaces of the gears 10, 12; two sets of shouldered balk pins 52, 74 extending axially from the rings 44, 46 respectively into corresponding bores 54, 76 arranged alternately in the sleeve 22, the pins 74 engaging the synchronizer ring 44, and a detent spring 88, received in an annular slot 86 of the sleeve 22, yieldably connecting the sleeve to the pins 74 through grooves 90 to transmit limited axial load there between. When the sleeve is moved leftwards from the neutral position shown by a selector fork (not shown), thrust is transmitted through the spring 88, to the pins 74 which urge the synchronizer ring 46 against the cone of the gear 12, corresponding frusto-conical balk shoulders 80, 82 on the pins 74 and the bores 76 preventing the sleeve from engaging the dogs 30 until the gear 12 and shaft 14 are synchronized, the final movement of the sleeve 22 to engage the clutch dogs 30 forcing the spring 88 out of the notches 90. Similarly, rightward movement of the sleeve 22 urges the synchronizer ring 44 against the cone of the gear 10, the pins 52 providing the balking action. Annular guide surfaces 58, 78 on the sleeve 22 stabilize the pins 52, 74 respectively, the surface 58 having cut-outs to clear the pins 74 and the pins 52 having longitudinal flats 56 to clear the spring 88 and surface 78. Projections 58 (Fig. 4, not shown) angularly locate the pins 52 in bores 50 of the ring 44. Cut-outs 60 in the ring 46 clear the free ends of the pins 52, which alternatively may be shortened.
Patent GB-243051-A (GB)
Title: Improvements in arrangements for loading of material into the buckets of overhead runways or the like
IPC: B65G67/00
Filed: 1924-08-16
Abstract: 243,051. White, J. W. Aug. 16, 1924. Transferring articles to or from conveyances in motion. -The bucket 17, Fig. 3, of a ropeway conveyer is charged at intermediate or terminal stations from a hopper 5 which is carried along by the bucket whilst the material is being transferred, and the hopper is charged from a pivoted tray 2, Fig. 1, which receives material continuously from a conveyer, shoot, &c. 1 and tilted to deliver into the hopper when the latter is beneath it, as shown in broken lines. An inclined rail 19 beneath the haulage rope at a terminal station supports the trolly wheels 20 so that the rope haulage grips 18 of the bucket engage an arm 21 on the hopper to move the latter along rails 7 from A to B, whilst charging. At B, the rail 19 is low enough to permit disengagement of the members 18, 21, and the hopper is returned to A by the suspended weight 14. When the hopper is in position A the hinged side door 11 is held closed by a ramp 13, and the tray 2 is tilted by the engagement of the hopper with levers 6 so that the hopper is re-charged in readiness for filling the next ropeway bucket. A portable intermediate station is constructed similarly but with the rails for the hopper adjustably inclined so that the hopper returns by gravity when released by the carrier. The grip 18 is raised to the level of the hopper arm 21 by a horizonitl rail on the portable structure which engages and supports the carrying or hauling rope. The hopper is automatically released from the bucket owing to the inclination of the hopper rails.
Patent GB-607871-A (GB)
Title: Engraved plate and method for making the same
IPC: B41C1/02
Filed: 1945-07-30
Abstract: A plate made of a polymerized acrylic or methacrylic compound, preferably polymethyl methacrylate, is etched by a solvent such as carbolic acid.  The etched portions may be dyed and hardened with aqueous formaldehyde.  Specification 426,866 is referred to.
Patent GB-730623-A (GB)
Title: Improvements in or relating to spinning tops
IPC: A63H1/32
Filed: 1953-07-14
Abstract: 730,623. Spinning toys. FRANGOS, E. W July 14, 1953, No. 19483/53. Class 132(3). A spinning toy comprises a body portion and a shaft member fixed to and extending through the body portion, each free end of the shaft member having a reduced neck connected to a ball-like knob, the knobs being adapted to co-operate with means for supporting the toy while permitting rotation thereof. In Fig. 8 two similar shell members 1 are pressed on to a shaft 3 having knobs 7, 8 which are highly polished to permit cradle hooks 17 to swivelly grasp the knobs when the toy is being spun by means of cords 18. Holding members 20 are connected to the cores by swivel joints, Fig. 6 (not shown), and the toy is spun by exerting a repeated pulling and releasing action on the members 20 and the cords. The toy may continue to revolve in one direction due to its momentum when the tension on the cords is reduced, the knobs 7, 8 then rotating in the hooks either of which may be released when the toy is supported by the other hook. In Fig. 10, the toy is supported by a simple hook 22 which passes through a transverse hole in the knob 8, the toy being spun first in one direction and then in the other by moving a button-like member 24 up and down the cord 18 at suitable intervals. The toy may be spun by winding a cord round the shaft portion between the shell members 1 and may be supported on a stand having a vertical pin or a stand with two shaft-supporting arms, Figs. 4, 5, 9 (not shown). Sound producing holes may be formed in the shells 1 which may be of metal or plastic. A modification, Fig. 12 (not shown), has only one shell member.
Patent GB-601112-A (GB)
Title: Improvements in or relating to scotch feed systems for feeding slivers for example to carding engines
IPC: D01G23/00
Filed: 1944-10-11
Abstract: 601,112. Intermediate feed &c., stopmotions. PLATT BROS. & CO., Ltd., MARSDEN, I., and COLLINS, L. Oct. 11, 1944, No. 19549. [Classes 120(i) and 120(ii)] A stop-motion for rollers spaced a fixed axial distance apart and between which material is passed, such as sliver passed through the rollers of the traversing carriage of a Scotch or like intermediate carding engine feed, comprises mechanism for disengaging driving connection to the rollers when the material being fed sets up a predetermined excess resistance to rotation of the rollers. When sliver wraps round one of the carriage rollers 10, 11 of a Scotch feed, a roller housing 15, pivoted at 17 to the carriage frame 16, is tilted against pressure from a plate spring 21, to lift the roller 10 and disengage a gear wheel 18 from a driving pinion 20. A spring-biassed catch is arranged to hold the frame in its tilted position until reset by a handle 27. Upon the return of the carriage to the side of the carding engine carrying the fast and loose pulley drive for the carriage, the extension 29a of an adjustable bracket 29 strikes an angle bracket 34 on a lever 31 releasing a weighted lever 40 which shifts the driven belt to the loose pulley. The fall of the lever 40 is arrested by a stop 49 after the lever has operated a switch 50 to cut off the main motor drive. Automatic signalling apparatus, such as an electrical device for ringing a bell or operating visual means may also be fitted. The stop-motion is also described as applied to an Apperley feed. The Provisional Specification describes a modification in which the carriage rollers are mounted so that they may separate against spring pressure upon formation of a sliver lap, and the roller adjacent the driving pinion is kept in engagement with that pinion by a catch which is released when the rollers separate more than a predetermined amount, whereupon the rollers are tilted by springs.
Patent GB-1193890-A (GB)
Title: Improvements in or relating to Winches
Inventor: ARMITAGE GORDON JAMES
IPC: F16H31/00
Filed: 1968-04-25
Abstract: 1,193,890. Winches. AURORA GEARING CO. (WILMOT NORTH) Ltd. 25 April, 1969 [25 April, 1968], No. 19555/68. Heading B8B. A winch drum driven by a double-acting hydraulic piston and cylinder arrangement 19, 18 includes two oppositely acting free-wheel clutches selectively connecting the drum shaft to an operating lever 27 oscillated by the piston 19, and a pair of pawls 14, 15 selectively engageable with a ratchet wheel 10 on the drum shaft, a manually-operated lever facilitating selection of one of the clutches and a corresponding pawl to prevent movement of the drum opposite to that in which the selected clutch operates to rotate the drum. The lever is adapted to rotate a shaft which through forks thereon causes both a key to slide axially of the drum shaft to couple the appropriate driven clutch to the shaft, and a link 16 to be moved to select the appropriate pawl. A link 22 connecting the piston 19 to the operating lever 27 has projections 23, 24 engageable with a valve 26 for automatically reversing the piston 19.
Patent GB-791248-A (GB)
Title: Improvements in or relating to multi-range indicators
IPC: H03J1/08
Filed: 1955-07-06
Abstract: 791,248. Indicating-apparatus. WAYNE KERR LABORATORIES Ltd., and CALVERT, R. Sept. 24, 1956 [July 6, 1955], No. 19572/55. Class 106 (4). [Also in Group XL (c)] Multi-range indicating apparatus comprises a pointer 15 movable over fixed graduation marks 14 and at least two indicia drums 21, 22 coupled together and to a range selector knob 33 and so positioned that, by operation of the range selector, appropriate indicia are displayed adjacent the graduations. A pinion 17 on the shaft 18 of a continuously variable element for adjusting the frequency of a signal generator output, drives the pointer 15 through a rack 16. Drums 21, 22 bearing indicia 10 to 90 and 20 to 100 respectively are secured to a shaft to register with the first and last graduation mark 14. The shaft is rotated by the control knob 33 for switching the range of the signal generator in steps of ten cycles per second, a further pair of drums 25, 26 bearing corresponding numbers of noughts, are coupled by a sleeve 27 and a bridgepiece 28 or gearing to the control knob 35 of a range multiplier, for changing the range in multiples of ten, thus enabling ranges from 10 to 100,000 cycles per second to be indicated by the pointer 15 against the graduations 14 read in conjunction with the indicia of the drums 21, 25 and 22, 26 exposed through a window in a plate 11.
Patent GB-530993-A (GB)
Title: Improvements in or relating to air compressors
IPC: F04B41/06
Filed: 1939-07-05
Abstract: 530,993. Regulating compressors. HEYWOOD, C. F. July 5, 1939, No. 19597. [Class 8 (i)] The output of a compressor is maintained constant at varying altitudes by use of an auxiliary compressor, such as a radial vane rotary pump 5 which delivers through a pipe 9 to the compressor inlet at high altitudes, while at lower levels the delivery is byepassed through an outlet 11 to cool the compressor. The byepass is controlled by a valve actuated manually or automatically in accordance with atmospheric pressure. Specification 520,703 is referred to.
Patent GB-147643-A (GB)
Title: Continuous current engine with constant voltage
IPC: H02K23/36
Filed: 1920-07-08
Abstract: 147,643. Kiesel & Co., O. June 17, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Exciting.-Variable-speed dynamos are regulated to give a constant voltage by the use of an auxiliary armature winding or a separate armature in the exciting circuit. In one arrangement, Fig. I, the armature of a lighting dynamo has one winding and commutator C connected to the main circuit L and a secondary winding and commutator C1, joined in circuit with the field-magnet windings N, S and an exciting battery B. In a modified arrangement, the field-magnet coils are shunt-wound and are connected in series with the field-magnet and armature windings of a separate machine driven by the shaft of the main dynamo. In a third arrangement, Fig. III, the field-magnet windings of the main machine A3 are excited by a separate dynamo A4, which has two field-magnet windings, of which one is excited by a battery B while the other is joined in series with the armature of the main machine A,. The dynamo A4 may be driven by a separate motor. The invention is applicable to alternating-current generators.
Patent GB-441256-A (GB)
Title: Improvements in rotary hammers
IPC: B25D11/06
Filed: 1935-07-10
Abstract: 441,256. Percussive tools. RASCH, L., 7, Magnusgate, Oslo, Norway. July 10, 1935, No. 19709. [Class 124] The hammer 4 of a rotary blow tool is pivoted eccentrically on the disc 3 driven through gearing by an electric motor. The inward movement of the hammer is cushioned by air trapped in the space 6, and in the compartment 15. The inlet 18 to this compartment is closed by the hammer when it nears the inner limit of its stroke. A suction valve is provided in the passage 20 to make up air losses and to assist in starting. A spring- pressed catch 24 ensures that the hammer shall be raised from the bottom of the space 6 when the hammer is at rest, this catch being withdrawn centrifugally when a desired speed is reached.
Patent GB-1280746-A (GB)
Title: Split flange connection
IPC: F16L23/036
Filed: 1970-04-24
Abstract: 1280746 Pipe joints AEROQUIP AG 24 April 1970 [14 May 1969] 19884/70 Heading F2G [Also in Division E2]  A split flange connection for holding a seal assembly against a face 13, Fig. 3, of a member 14 comprises a pair of identical flange halves 21a, 21b, Figs. 1 and 2, each of which is provided with bolt holes 23, 24 and 25 and is stepped at 26. The seal assembly comprises a member 12, Fig. 1, which is recessed at 18, Fig. 3, and is provided with a groove 16 which receives a seal 17 therein. The member 12, having an annular shoulder, is received in an annular recess in the split flange connection and protrudes therefrom a distance which is substantially equal to the thickness of feet 27, Figs. 1 and 5, which are provided on each flange half, the feet 27 preventing rocking of the member 12 during the assembly of the connection to the member 14. The feet may be replaced by a shim of nylon, for example, which may be corrugated. In an embodiment a hose 19, Fig. 3, is connected to a port 15 in the member 14 by means of bolts 31, Fig. 6. In order to release the hose, bolts 31 are removed from the holes 24, 25 to allow each flange half 21a or 21b to be pivotally movable about the bolt in the hole 23.
Patent GB-847124-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: MOORE RICHARD VALENTINE
IPC: G21C15/02
Filed: 1957-06-24
Abstract: 847,124. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19898/57. Class 39(4). A fuel element assembly for use with a reentrant cooling system comprises a stack of double-walled sleeves 102 each supporting a separate portion of fuel. The fuel is arranged in clusters of seven rods 101 in stainless steel sheaths with welded end caps carrying plugs 107 which are fastened into spiders 108 and 109 by split pins ; the lower spider is a loose fit in the sleeve. The sleeves are perforated at 111 and joined by tubular pins 112 passing through perforations in adjacent sleeves. The perforations at the top of the stack are blocked by pins 113 connected with a tube 114 carrying piston rings 115 to seal with an outer tube 120 and having a boss 116 to engage with an expanding lifting tool. In operation some of the liquid Na coolant flows through the perforations. The assembly can be removed, dismantled, and reassembled so that the less irradiated portions of fuel are brought into regions of higher flux.
Patent GB-911851-A (GB)
Title: Improvements in or relating to guttering and gutter fittings for buildings
Inventor: BERRY JOHN FISHER
IPC: E04D13/064
Filed: 1960-06-07
Abstract: 911,851. Roof guttering. MARLEY TILE CO. Ltd. May 26, 1961 [June 7, 1960], No. 19936/60. Class 20 (4). In a spigot and socket joint between lengths of guttering 1, 5, Fig. 3, particularly made of plastic material or between a length of guttering and a coupling member or gutter fitting, the spigot and the socket are clamped to one another by resilient means, such as a C-shaped clip 8, which permits limited relative longitudinal displacement of the spigot and socket. The spigot and socket are each formed with a pair of longitudinally spaced abutments facing one another, which in one embodiment are constituted by the ends 3, 4, Fig. 2, of slots 2 in the edges of the spigot end on the gutter length 1 and by external ribs 6, 7 on the socket end on the gutter length 5. Relative longitudinal displacement of the gutter lengths, in either direction, is limited by engagement of the clip 8 with opposed abutments 3, 6 and 4, 7, respectively. In another embodiment, Figs. 4-6 (not shown), slots such as 2 are formed in the socket as well as in the spigot to provide the abutments. In a further embodiment the separate clip 8 is replaced by inwardly turned resilient lugs on the edges of the socket which engage in the slots 2 in the spigot. A sealing strip of non-hardening resilient material or mastic compound may be disposed between the spigot and socket.
Patent GB-741016-A (GB)
Title: Improvements in or relating to drawing apparatus
Inventor: DARGUE ERIC LEWIN
IPC: B43L13/04
Filed: 1953-07-18
Abstract: 741,016. Drawing boards. DARGUE, BROS., Ltd. Oct. 15, 1954 [July 18, 1953], No. 19990/53. Class 11 A straight edge 9 for a drawing board 1 is provided with one or more balance weights 7, slidably mounted on rods 5 secured to the board by bracket 3 so as to be substantially parallel to the plane of the board in any position of the board. The straight edge 9 is provided with pinnions at each end running in racks and is slidably engaged by a cord 19, attached, by means of a tension spring to one of the weights 7. The cords 19 run over pulleys 21 at each end of the board 1 and are provided with stops 33 so that when the board is horizontal the straight edge may be freely positioned, but when the board is tilted the stop 33 engages the straight edge so that the weight thereof is counterbalanced.
Patent GB-204171-A (GB)
Title: Wood heel covering machine
IPC: A43D25/12
Filed: 1922-07-22
Abstract: 204,171. Ward, C. July 22, 1922. Heels, machines for. - A machine for use in covering wooden heels with leather &c. comprises means for forcing a heel into a heel cover stretched over wipers. The heel M is held by adjustable clamping members D, F on an arm N projecting from a plunger J adapted to be raised or lowered in a column C by a treadle through suitable gearing. The heel cover coated with adhesive is stretched over rubber or other wipers G pivotally mounted on brackets A and adjustable to suit various sizes of heels by nuts H. The treadle is depressed, lowering the heel into the cover, which is stretched into position by the wipers. After the wiping the heel is released by contact of the lever F with a pin P on the frame.