baber/WOPTO huggingface dataset:
Patent GB-1486116-A (GB)
Title: Trampoline apparatus for use in connection with tumbling
IPC: A63B5/06
Filed: 1975-02-11
Abstract: 1486116 Trampolines NISSEN CORP 11  Feb 1975 [8 March 1974] 5809/75 Heading A6M [Also in Division E2] A trampoline apparatus comprises two laterally spaced longitudinally extending side members 11, a bed of flexible material resiliently suspended at its side edges from the side members suchthat it is held in tension, in both transverse and longitudinal directions, between the side members, the tension being greater at the ends of the bed than at the remainder, and legs to support the frame above a floor. In a preferred embodiment the nylon bed 40 is suspended between elongate side rails 11 by springs 37 which are disposed in spaced relationship along each side edge of the bed 40 being more densely disposed and splayed out at an angle to the side rails 11 adjacent the ends of the bed 40. Each side rail 11 comprises inclined and horizontal sections, 11a and 11b respectively, connected by a double jointed hinge 12 allowing the apparatus to be folded. The frame 10 is supported above the floor by three substantially U-shaped leg assemblies 20 each consisting of an inner tube 21 whose ends 22 are bent and journalled in bushings welded beneath the side rails 11, and an outer tube 26 welded at 27 to the tube end 22 at at 32 to a transverse section 25 of the inner tube 21, such that the leg assemblies may be folded to a position substantially parallel to the bed. When in use the leg assemblies 20 are retained in supporting position by chains 34. The bed 40 is an open weave of narrow strips of webbed nylon covered at 41 and 42 by vinyl pads. Protective pads 43 may also be provided locating over the side rails 11 and springs 37.
Patent GB-248746-A (GB)
Title: Improvements in or relating to the extraction of aluminium ore
IPC: C01F7/062
Filed: 1926-03-02
Abstract: 248,746. Finkelstein, A. March 2, 1926. Alumina; sodium aluminate.-In the extraction of alumina by the Bayer process, the motherliquor, after the separation of alumina, at a density not higher than 1.36, which is about 3-normal in respect of alkali, is used without concentrating to dissolve more alumina at a raised temperature, for instance 170 C., the alumina being separated at about 70 C. The wash-waters are evaporated to a strength equal to the motherliquor, or a portion of the mother-liquor is evaporated to a high strength such that on mixing with the wash-waters the strength of the mixture is equal to the mother-liquor, this alternative allowing of the separation of salts that crystallize during the concentration. The dissolving of the alumina may be effected in an autoclave, the liquor being then transferred to a vat in which it is allowed to boil until its temperature falls to 105 C. with the loss of about 10 per cent of water.
Patent GB-886464-A (GB)
Title: Grounding devices
IPC: H05F3/02
Filed: 1960-02-18
Abstract: 886,464. Earthing the human body. COAKER, H. S. Feb. 18, 1960 [Nov. 10, 1959], No. 5851/60. Class 81 (2). [Also in Groups IX and XXXVI] The human body is discharged of static electricity while in bed by means of bedding or pillow slips 12, 14 made of a fabric incorporating threads of bare copper, steel, platinum or other metal connected to ground, e.g. the " earth " terminal of a three-pin socket 40. A suitable adaptor 22 is described (see Group XXXVI).
Patent GB-551843-A (GB)
Title: Improvements in electric wave repeating systems
IPC: H03F3/66
Filed: 1942-05-01
Abstract: 551,843. Repeating systems. STANDARD TELEPHONES & CABLES, Ltd. May 1, 1942, No. 5885. Convention date, May 25,1941. [Class 40 (iv)] [Also in Group XL] In a transmission system in which the gain of some or all of the repeaters is controlled in accordance with the level of a pilot current, an abnormal reduction of the level received at a repeater point causes the transmission from that point of a substitute pilot current which takes charge of the subsequent repeaters and in some cases of the local repeater. The invention is applicable to systems of the kind described on Specification 537,893 in which the intensity of the pilot current at the originating station is varied in accordance with the average intensity of the message current so that the sum of the two currents is kept substantially constant. The substitute pilot currents which may be of the same or of a different frequency from the normal pilot may be generated by a transmission path amplifier. In one arrangement, Fig. 4, the normal pilot selected by filters PF controls a thermistor 5 in the negative feed-back path in known manner and keeps a thermistor 9 at such a temperature that a bridge 8 in a positive feed-back path is balanced. The pilot may be applied directly to the heater of an indirectlyheated thermistor instead of as shown. If the pilot fails, this bridge becomes unbalanced and the amplifier generates a pilot current of a different frequency determined by the characteristics of filters PF1. This pilot current controls the gain in the amplifier concerned and in subsequent amplifiers. In a modification, Fig. 5 (not shown), a positive feed-back path of a transmission path amplifier is normally disabled by a tuned circuit at the pilot frequency and includes a piezo-electric crystal tuned to that frequency. When the pilot fails, a thermistor associated with the tuned circuit alters its natural frequency and oscillations are generated at the normal pilot frequency. In other arrangements, Figs. 6 and 7 (not shown), failure of the pilot alters the temperature of a thermistor so as to unbalance a hybrid coil arrangement and enable a locally generated pilot current to reach the outgoing line. This thermistor may be controlled by the message currents to modulate the pilot currents as described in Specification 537,893, so that the average intensity of the message signals and substitute pilot combined remains constant. Another arrangement of this kind, Fig. 9, resembles one of the terminal amplifiers described in that Specification but has in addition a thermistor 20 in the negative feed-back path for purposes of gain regulation and is adjusted to oscillate only when the incoming pilot fails.
Patent GB-991251-A (GB)
Title: Improvements relating to vehicle escape systems
IPC: B64D25/10
Filed: 1962-02-16
Abstract: 991,251. Aircraft ejection seats. J. MARTIN. Feb. 12, 1963 [Feb. 16, 1962], No. 5990/62. Heading B7G. An aircraft ejection seat gun comprises inner and outer telescopic cylinders defining a chamber to which gas can be supplied from explosive means to effect gun extension, and means for admitting pressure fluid to the chamber from a source independent of the explosive means to effect gun extension. As shown, the gun comprises an outer cylinder 1, intermediate cylinder 2, and inner cylinder 3 attached to the seat and having the usual gas-producing cartridge 5 and detonator mechanism, possibly with supplementary gas-producing charges, all as in Specification 721,752. On extension, cylinder 2 is retained within cylinder 1 by a stack of fluid filled shock-absorbing rings 4, but cylinder 3 separates from cylinder 2. A diaphragm 9 is attached by rivets 11 in its flange 10 to the inner end of cylinder 3. In normal operation, detonation of cartridge 5 produces gas at a pressure sufficient to shear rivets 11, the gas expanding within the whole of the gun in the normal way. For ejection under water, compressed air from a storage vessel is admitted through a one-way valve 15, and acts on the diaphragm 9 to eject the seat with a thrust/time schedule suited to underwater conditions, cylinder 3 remaining sealed so that the compressed air expands into a less volume than does the gas from the cartridge. The Provisional Specification also discloses the following subject-matter. The diaphragm may be attached to the intermediate cylinder, and be sealed by a washer to the inner face of the outer cylinder, and may have a flexible flange received behind an internal shoulder of its cylinder, instead of connection by shear rivets. Admission of the compressed air to the gun may also initiate severing of the drogue parachute line connecting the airman to his seat, operation of an evictor as in Specification 879,966 and inflation of the airman's lifejacket. Specification 991,254 also is referred to.
Patent GB-353912-A (GB)
Title: Improvements in devices for heating electric hand irons
IPC: D06F79/02
Filed: 1930-02-24
Abstract: 353,912. Heating by electricity. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Feb. 24, 1930, No. 6031. Convention date, Feb. 22, 1929. [Class 39 (iii).] A stand having means for coupling the resistance unit of an electric hand iron, when out of use, to a current supply and provided with a circuitbreaker operative at a given temperature and a signalling device for indicating the breaking of the circuit, comprises an inclined plate g and a vertically adjustable block o and laterally adjustable straps q whereby the iron is guided to a position wherein a plug r covering the contact pins on the iron coacts with contacts carried on a block m which is adjustably mounted on the stand. When the iron is in position no current-carrying parts are exposed. The circuit-breaker comprises a screw e, having a graduated head f and positioned in the path of a lug h on the plate g. The screw is carried by one arm of a three-armed lever d which is pivoted at a. Another arm b of the lever locks a switch arm c in the lead to one of the contacts on the block m in the closed position. As the plate expands under the heat of the iron the lug strikes the screw e and the bar b is rocked counterclockwise from the locking position shown to enable the arm c to break the circuit under the action of a spring s. A bell l is rung simultaneously with the opening of the circuit.
Patent GB-736533-A (GB)
Title: Improvements in or relating to mechanisms for sieving or mashing foodstuffs and the like
IPC: A47J19/00
Filed: 1953-03-05
Abstract: 736,533. Mashing and sieving foodstuffs. DAWKINGS, W. V., and DAWKINGS, D. March 3, 1954 [March 5, 1953], No. 6168/53. Class 28 (2). Potatoes are mashed through the perforations 20 of a cylinder 1 by an internal roller 16 rotated round the inner surface of the container and also rotated on its own shaft 13 to give either rubbing or rolling contact. The drive means may comprise a hand rotated wheel 8, driving through bevel gearing a horizontal shaft 4 carrying a radial arm 11 carrying a crankpin shaft 13 on which is mounted the roller 16. The roller 16 is also rotated on its own shaft through a sun-wheel ring gear 19 on the shaft 4 rotating gears 18 and 17. The potatoes are pushed through a feed hopper 2 to the cylinder 1.
Patent GB-1105843-A (GB)
Title: Improvements in or relating to nipples for feeding bottles
IPC: A61J11/00
Filed: 1967-02-09
Abstract: 1,105,843. Teats. J. SPIJK. 9 Feb., 1967 [17 Feb., 1966], No. 6169/67. Heading A5X. A teat 1 of a feeding bottle has a fixed or detachable thickened top portion 2 having a bore 3 and a slot in which a strip 4 having a perforation 5 is slidable.
Patent GB-1530912-A (GB)
Title: Compositions containing 9-(2-hydroxy-3-alkyl)-adenines
IPC: C07H19/16
Filed: 1975-02-13
Abstract: 1530912 Adenine derivatives WELLCOME FOUNDATION Ltd 13 Feb 1976 [13 Feb 1975] 6173/75 Heading C2C [Also in Division A5] Erythro-9-(2-hydroxy-3-nonyl)adenine is prepared by the sequential steps of reacting D,L-2- aminooctanoic acid, acetic anhydride and pyridine to yield 3-aminononan-2-one hydrochloride which is treated with sodium borohydride to give erythro-3-amino-2-nonanol which is reacted with 5-amino-4,6-dichloropyrimidine, triethylamine and 1-butanol to give erythro-5- amino-4-chloro-6-(2-hydroxy-3-nonylamino) pyrimidine which is reacted with triethylorthoformate and ethanesulphonic acid followed by ammonia and then HCl to yield the hydrochloride of the desired product which can be neutralized to yield the free-base. The corresponding 3-butyl and 3-dodecyl compounds may be similarly prepared.
Patent GB-1426892-A (GB)
Title: Process and apparatus for treating solids enriched wash liquids
IPC: B01D21/02
Filed: 1973-02-08
Abstract: 1426892 Filtering and settling BLAWKNOX FOOD & CHEMICAL EQUIPMENT INC 8 Feb 1973 [9 Feb 1972] 6208/73 Heading BID [Also in Division C3] In a process for treating wash water obtained by washing a comestible product (e.g. vegetables), the wash water is concentrated in a plurality of concentrators connected in series and the resultant concentrated liquid is settled in at least one settling device comprising a liner in a support. In one embodiment slices of washed, skinned potatoes are blanched in a countercurrent water flow and washed in co-current water flow in a tortuous path. The wash water is separated from the slices by a number of mesh conveyors and the slices are conveyed to a fryer. The blanching and washing waters are combined and passed to a plurality of concentrating stages connected in series, the first and second stages each comprising hydrocyclones connected in parallel and the third stage one hydrocyclone. The concentrated liquid which is a starch slurry is passed to a settling device comprising a plastics bag in a frame mounted on a skid. The supernatant liquid is removed and the starch is obtained in block form.
Patent GB-789849-A (GB)
Title: Improvements in dual purpose walking sticks and the like
IPC: A45B1/02
Filed: 1956-02-28
Abstract: 789,849. Convertible walking sticks. HOLLOWAY, D. E. Feb. 28,1956 [Feb. 16,1956], No. 6245/56. Class 134 [Also in Group XXXII] The shaft of a walking stick adapted for conversion into a luggage trolley has a handle 8, 9, Fig. 1, projecting laterally at the top end and both the shaft 2, 3 and the handle are divided longitudinally into two similar sections hinged together at the bottom end and separable to a degree determined by a collapsible strut 15, Fig. 3, interconnecting the shaft sections remote from the hinge, the handle end of each shaft section carrying a wheel 11, 12 so that the axes of the two wheel become coaxial when the shaft sections are fully separated. In the folded condition the handle section 8, 9 are held together by a rubber sleeve 10 also forming a hand grip and in the expanded form these sections project upwardly to support the luggage 20. Intermediate struts 22, hooks 25 for additional parcels, and hooks 27 for straps may also be provided.
Patent GB-436708-A (GB)
Title: Improvements in boiler furnaces
IPC: F23G5/00
Filed: 1935-02-27
Abstract: 436,708. Refuse-consuming furnaces. INTERNATIONAL COMBUSTION, Ltd., and ROBEY, E. W., Aldwych House, Aldwych, London. Feb. 27, 1935, No. 6267. [Class 51 (i)] In a boiler furnace adapted to burn waste material and having a travelling grate a extending in front of the front boiler wall q sufficiently to provide a drying floor beneath an arch e heated by radiation from the furnace, means are provided for feeding a high grade fuel on to the extension in front of the feed of the waste material and for ensuring that some of the air for combustion passes through the extended portion of the grate. Coal may be fed on to the front end of the grate from a hopper d, the depth of the layer being controlled by a fire door c suspended from a windlass r. Bagasse, waste wood or like refuse is fed from a hopper f. The rate of feeding is controlled by varying the height of a box member f<2> suspended from a pulley p<1> adapted to be operated from the front of the furnace by means of a rod i. A hinged plate g kept in vibration by a cam h driven from the front shaft a<1> of the grate ensures the discharge of the waste material. Primary air is supplied through the grate and the extended portion thereof by known means and secondary air is delivered from a trunk m through the arch e at n and o and from a trunk s through the rear arch of the furnace.
Patent GB-1188463-A (GB)
Title: Improvements in or relating to Fail-Safe Control Circuits
IPC: G05D1/00
Filed: 1968-02-08
Abstract: 1,188,463. Monitor circuits for -control systems. BENDIX CORP. Feb. 8, 1968 [Feb. 16, 1969], No.6324/68. Heading G3R. A flight control system is monitored by the control circuit shown which comprises an arrangement of relay operating coils and contacts to provide an indication of the state of operation of the control circuit and the control system. A lamp 25 is lit when the circuit and system are operating correctly. The lamp 25 is out when the system is not being monitored and goes out when the control system operates incorrectly or when circuit components are faulty. Other circuit malfunctions cause the de-energization of a control device 11 whose energization engages the flight control system, the latter operation entailing the closure of a switch 8 to apply a signal from a source 10 to a relay 12 through contacts 4A, 4B and fuse 24, the energization of relay 12 closing contacts 12A, 12B to energize the device 11 and a self-holding relay 9 for the contacts 8. The system then operates in the unmonitored mode. Transfer to the monitored mode. Switches 6, 6A are manually or automatically closed to apply to a relay 2 the output signal from a comparator 30 whose inputs 32, 34 respectively correspond to a flight condition signal and to a monitor input for this signal. When the control system is operating correctly, the output of comparator 30 is within a predetermined limit and a relay 2 is energized to close contacts 2A, 2B and so energize a relay 4 controlling contacts 4A, 4B, 4C and a self-holding relay 7 controlling the contacts 6, 6A. Thus contacts 2B, 4C are closed, contacts 4A, 4B are open and the lamp 25 is lit. Any other condition of these contacts causes the lamp 25 to go out or the control device 11 to be de-energized by blowing of the fuse 24. Various malfunctions of the control system and monitor circuit are discussed.
Patent GB-1375412-A (GB)
IPC: G01V3/04
Filed: 1971-03-09
Abstract: 1375412 Electro-physical measurements NATIONAL RESEARCH DEVELOPMENT CORP 13 Jan 1972 [9 March 1971] 6346/71 Heading G1N In order to effect normalization of the readings of an earth polarization meter the voltage applied to a pair of earth electrodes 1, 1'to inject a current through the earth is controlled in response to the PD measured across measuring electrodes 2, 2'in such a manner that the measured PD remains constant. Current switch 3 is initially closed by the leading edge of a square wave from multi-vibrator 5 so that a D.C. current from 50V source flows between 1, 1' for the length of the square wave. Measuring electrodes 2, 2' are connected to the left hand F.E.T. amplifier 8, via back-off device 9 so that when the D.C. current is injected between 1, 1' the resulting p.d. across electrodes 2, 2' is measured which controls the intensity of light emitted from a light source associated with the left hand F.E.T. The light source controls over a photolink 13 the value of a photo-resistor in stabilizer 4 in series with the supply which is thus varied to ensure that the potential difference across electrodes 2, 2' is maintained constant. In this way the current flowing through the ground between electrodes 1,1' during the energizing period is directly proportional to the conductivity of the earth. At the end of the energizing period and after a delay determined by the period of monostable 6 output a switch 10 is opened for a period determined by monostable 7 to allow the induced polarization voltages to be passed via the right hand F.E.T. 8 to one input of a symmetrical difference integrator 11 in which is stored a voltage proportional to the D.C. self potentials existing in the ground and which is measured before injection of the current through the ground. The output of the difference integrator 11 is thus the true induced polarization integral which is displayed on meter 12. A suitable non-polarizable electrode for inserting in the ground is described in Fig.3 (not shown).
Patent GB-877968-A (GB)
Title: Improvements relating to crimping tools
IPC: B65B13/34
Filed: 1960-02-23
Abstract: 877,968. Sealing tools. SIGNODE STEEL STRAPPING CO. Feb. 23, 1960 [Feb. 24, 1959], No. 6375/60. Class 146(2). A tool for crimping overlapped strap ends, which may be surrounded by a seal, comprises jaw members 12, 13 pivoted between side plates operated by a similarly pivoted handle 20 and is provided with latch means which prevent opening of the jaws unless a full crimping stroke has been made. A latch plate 42 is connected by a toggle bolt 38 to a mounting plate 14. A spring 39 biases the toggle to positions on either side of a dead centre line from the latch pivot 41 in one of which a detent 48 engages an end 27<SP>1</SP> of a link pin 27 to prevent the upward movement, by the handle 20, of a crosshead 24 to open the jaws. From the intermediate position shown with the toggle bolt 38 being to the left of the centre line its spring 39 will force the detent 48 into the path of the pin 27 until at the completion of a crimping stroke a cam surface 20<SP>1</SP> of the handle engages a roller 46. to force the lafch plate over the centre line. The detent 48 is now out of the path of the end 27<SP>1</SP> of the pin 27 so that the jaws can be opened. As the fully open position is approached a cam surface 45 on the crosshead 24 engages the roller 46 to force the latch 42 past the centre line to cause the detent 48 to prevent re-opening of the jaws until a further stroke is completed.
Patent GB-1402554-A (GB)
Title: Covers for padded items and padded items made therefrom
IPC: B29C44/14
Filed: 1972-02-11
Abstract: 1402554 Cushions STOREY BROS & CO Ltd 31 Jan 1973 [11 Feb 1972] 6544/72 Heading A4M [Also in Division B5] The cover of a padded cushion 30 is a vacuum formed P.V.C. sheet having a fabric panel 14 welded thereto, a bead 17 being formed along the weld line. The cover may be filled with a foamed polyurethane, as shown, and/or springing. The fabric panel is of natural or synthetic fibres or mixtures thereof in a woven, non-woven, or knitted fabric. A crimped or coiled yarn fabric may be used.
Patent GB-814946-A (GB)
Title: Improvements in stop motion devices for knitting machines
Inventor: SHORTLAND ARTHUR
IPC: D04B35/10
Filed: 1955-03-07
Abstract: 814,946. Knitting-machines. MELLOR BROMLEY & CO. Ltd. March 5, 1956 [March 7, 1955], No. 6613/55. Class 74 (2). The stop motion device for a knitting machine comprises a spring-loaded arm 15 which holds a running yarn Y up to a dropper wire 3 so that in the event of yarn failure or undue tension when the arm 15 is pulled away from the dropper wire, the wire 3 falls and makes an electrical contact to cause stoppage of the machine. The housing 1 for the dropper wire 3 is supported on the end of a rod 13 which also carries the housing 17 for a coil spring and spindle tensioning and supporting the arm 15, the respective housings being spaced apart on the rod. The tension imparted by the arm 15 can be varied by rotating the base-plate 19b of the housing 17 which winds up or unwinds the spring. The end of the arm which is bent to provide two portions 15b, 15c over which the yarn extends and between which the dropper wire engages the yarn is further turned at 15e to provide a short projection which supports the dropper wire during small movements of the arm 15 due to small variations in the tension of the yarn. Any excessive movement of the arm 15 clears the dropper wire which is then allowed to fall. Specification 814,945 is referred to.
Patent GB-349135-A (GB)
Title: Improvements in mirrors
IPC: A61B1/247
Filed: 1930-02-28
Abstract: 349,135. Optical instruments for surgical purposes. ZEISS (LONDON), Ltd., C., 37, Mortimer Street, London. Feb. 28, 1930, No. 6648. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 3, 1930.] [Class 81 (ii).] In a mirror for self-examination of the head, a centrally placed lens, which may be cemented to the mirror, or integral therewith, or removably mounted thereon, concentrates light from a source behind the mirror on the part to be examined, which is viewed by reflection in the mirror. In a modification the lens may be dispensed with, a plain hole being employed. The mirror may be plane, concave or double-sided, plane and concave, and is provided with a protruding margin in the shape of the frustrum of a cone. By the use of a quartz lens the apparatus may be used for self-irradiation with ultra-violet rays.