baber/WOPTO huggingface dataset:
Patent GB-756170-A (GB)
Title: Improvements in or relating to laminated transparent structure adapted to function as a safety closure rupturable under shock
Inventor: SHERTS JAMES HERVEY
IPC: E06B5/12
Filed: 1953-10-31
Abstract: 756,170. Windows. PITTSBURGH PLATE GLASS CO. Oct. 31, 1953, No. 30146/53. Class 20(3). [Also in Group VIII] A window rupturable under explosion pressure comprises two glass sheets 13, 14 bonded to opposite sides of a thermoplastic synthetic resin interlayer 12 that has edges 15 extending beyond the glass sheets constituting -flexible connections to the mount or frame 16 and that is cut along lines 25 into sections that can hinge about the edge portions 15. One or both of the glass sheets is cut or scored along lines coincident with the cuts in the interlayer. Each glass sheet may be cut along a different diagonal of the window. The cut segments of the glass plate and interlayer may be separated, leaving a gap which is filled with a strip of non-adhering material 26 such as polyvinyl chloride. The interlayer may be of polyvinyl acetal. The window may be repaired after rupture by moving the segments back into a common plane and securing between two washers drawn together by a nut and bolt at the intersection of the diagonals of the window.
Patent GB-450834-A (GB)
Title: Improvements in or relating to electric ship propulsion systems
IPC: B63H23/24
Filed: 1934-10-22
Abstract: 450,834. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and COATES, H. J., c/o General Electric Co., Ltd., Witton, Birmingham. Oct. 22, 1934, No. 30241. [Class 38 (iii)] Varying E.M.F. ; field control.-A tug-boat is provided with a ship propulsion system with Ward-Leonard control including means for limiting the power delivered to a propulsion motor controlled by a speed controller with a range of speed control positions in which control is effected independently of the power delivered to the motor, and by means effective in a final position of the controller and operated in dependence on the power delivered to the motor, the arrangement being such that, when the controller is in the final position, if the power delivered to the motor is below a predetermined value, the power-limiting means is inoperative, whilst if the power delivered to the motor is above the predetermined value the power limiting means is operative. When the controller 6 for the generator field 4 is operated either to its full ahead or full astern position, contacts 18 are closed, and, provided a motor current relay 21 is in its normal position, a time delay relay 31 is energized. This relay, after a time delay, closes its contacts to energize a normally closed contactor 27, and insert adjustable resistance 25 in the circuit of the motor field 5. If, however, the tug has a ship in tow, so that the current relay 21 opens its contacts 22, the relay 31 is not eneigized, and the motor field is not weakened. Should the tow rope slacken for a short while, the current relay 21 closes its contacts, but the weakening of the motor field is prevented by the time device on the relay 31.
Patent GB-637685-A (GB)
Title: Improvements in chain-shift devices for bicycles and the like
IPC: B62M9/136
Filed: 1947-11-17
Abstract: 637,685. Chain-shifting gear. JUY, L. C. H. Nov. 17, 1947, No. 30484. Convention date. Nov. 15, 1946. [Class 80 (ii)] A cycle chain (not shown) is shifted selectively onto different-sized driving sprockets 5, 6 on the pedal-bracket 12 by a forked part 4 intermediate the ends of a lever 3, which pivots at its lower end on a clip 1 fixed to the frame tube 11, the pivoting angle being adjustably restricted at the upper end by a guide slot in a clip 9 which can be adjustably fixed along the frame-tube 11. As shown the fork is made of two unequal arms 19, 20 of bent wire. It may alternatively (Fig. 3, not shown) be a straight fork with arms of unequal length which is vertically and horizontally adjustably attached to the lever 3, or it may (Fig. 5, not shown) be pivoted to the lever and guided for rectilinear axial movement by a bushing on the frame. In Fig. 4 the lever 3, fork 4 and fixed clip 1 form sides of a parallelogram linkage.
Patent GB-860721-A (GB)
Title: Improvements in nozzles for vacuum cleaners
IPC: A47L9/06
Filed: 1958-09-24
Abstract: 860,721. Suction cleaner nozzles. ELECTROLUX Ltd. Sept. 24, 1958 [Sept. 27, 1957], No. 30488/58. Class 8(1). A suction cleaner nozzle brush 14, Fig. 1, is carried by the outer free ends of spring arms 13 and movement between the operative and inoperative positions is effected by rotating a sleeve 11, Fig. 2, about the axis of the suction outlet socket 25, e.g., by pressing one or other of lugs 27, 28 whereby inclined slots 20 in radial flanges 31, 32 at the inner end of sleeve 11 results in pivoting a lever assembly comprising rollers 16, pins 17 yokes 12 and the arms 13 about fixed axes 23 provided by engagement of bent portions of the inner ends of the arms 13 in recesses of the nozzle body. As shown in Fig. 2, the brush is held in the inoperative position against the spring action of the arms 13 by the rollers 16 engaging recesses in the slot walls 35. The upper wall 18 of the nozzle acts as a stop to limit upward movement of the brush and bridge pieces 19 serve to limit downward movement.
Patent GB-782426-A (GB)
Title: Improvements relating to the production of calcium carbide
IPC: C01B32/942
Filed: 1954-10-25
Abstract: <PICT:0782426/III/1> In the process for the production of calcium carbide by reacting lime or limestone with carbon under heat in a shaft furnace, a solid fuel rich in carbon is continuously supplied to a combustion zone or zones in the hearth of the furnace where combustion is maintained by means of a blast or blasts rich in oxygen to provide the heat necessary for the reaction, and lime or limestone, for reacting with unburned carbon is supplied continuously, in excess of that corresponding to the reaction equation CaO+3C--> CaC2+CO , to an adjacent zone or zones, and the formed molten carbide, contaminated with free lime, is caused during tapping to flow laterally beneath the combustion zone, or at least one of the combustion zones, in contact with carbon in such zone, and sufficiently slowly to cause the greater part of the free lime to be converted to carbide under the radiant heat from the combustion zone. The lime or limestone may be mixed with carbon. The process may be carried out in a furnace of the type described in Specification 755,397, [Group XII], where the charging space 2 is alternately filled with coke fuel and lime or lime/coke mixture in molar ratio CaO : C, say 1/2 .  Coke is fed, on lowering closing member 4, with hopper 6 in position shown, into bunker space 8 between sheet iron wall 1 of the furnace and wall 7 of inner bunker space 9, whence it passes continuously round wall 16 enclosing free space 15 into lower section of shaft having a firebrick lined hearth 12 and slag pit 11, and is burnt by oxygen-enriched air or oxygen/steam mixture injected through tuyeres 13.  Lime or lime/coke mixture is fed from space 2, with hopper 6 turned through 180 degrees, into inner bunker space 9, whence it passes continuously into lower section of the shaft. The lime melts and reacts with coke, when it is surrounded by the combustion zones of the coke bed around the tuyere outlets, at, say, 2200-3000 DEG  C., and the molten carbide collects in slag pit 11, whence it is tapped through one or more holes 14, after being subjected to radiant heat from the combustion zones due to the downward inclination of tuyeres 13 for a sufficient time to permit lime present in the molten carbide to react with coke also present. Combustion gases collect in space 15 and are withdrawn through pipe 10 without contacting the bulk of the fuel. Alternatively, coke may be fed to bunker space 9 and lime or lime/coke mixture to space 8, with consequent lengthening of tuyeres 13 into centre of the furnace and adjustment of tap hole position.  In an alternative apparatus (Fig. 2, not shown), having three shafts connected to a common hearth, coke is fed to the two outside shafts and lime/coke mixture to the centre shaft.
Patent GB-1505923-A (GB)
Title: Production of cubic coron nitride
IPC: B01J3/06
Filed: 1975-07-23
Abstract: In order to prepare needle-shaped, cubic boron nitride which is suitable, in particular, for manufacturing grinding discs, a sleeve (12) which is made of hexagonal boron nitride and encircles a catalyst core (10), is arranged in a reaction zone in which the temperature and pressure conditions suitable for forming cubic boron nitride are generated. The mass ratio between the hexagonal boron nitride and the catalyst is in the range of from 10:1 to 3:1. The catalyst used can be a nitride of an alkali or an alkaline earth metal. The needle-shaped, cubic boron nitride particles are used to produce grinding discs. <IMAGE>
Patent GB-650297-A (GB)
Title: Improvements in or relating to cartons, canisters and the like containers
IPC: B65D3/30
Filed: 1948-11-27
Abstract: 650,297. Boxes; hollow-ware. PATON, CALVERT & CO., Ltd., and PATON, W. Nov. 27, 1948, No. 30834. [Classes 18 and 66] The mouth of a cardboard carton or the like is strengthened by a metal sleeve 6 which is rolled over the edge of the carton to engage the inner surface thereof and grip the rim. The sleeve has a bead 7 to mask the edge of the flange of a lid and may have sloping projections to engage corresponding projections on the lid enabling it to be screwed tightly in place.
Patent GB-240042-A (GB)
Title: Improvements in and relating to glands or stuffing boxes
IPC: F16J15/447
Filed: 1924-12-23
Abstract: 240,042. Vickers (Leeds) Engineering Co., Ltd., B. R., Vickers, W. F., and Forwell, W. Dec. 23, 1924. Drawings to Specification. Materials, special.-A stern-tube bearing bush is made of metal, lignum vitµ, or rubber.
Patent GB-1147521-A (GB)
Title: Lens centring apparatus
Inventor: BAKER LIONEL RICHARD
IPC: G02B7/02
Filed: 1966-07-11
Abstract: 1,147,521. Photo-electric lens centring. BRITISH SCIENTIFIC INSTRUMENT RESEARCH ASSOCIATION. 7 July, 1967 [11 July, 1966], No. 31082/66. Heading H4D. [Also in Division G3] A lens 18 is centred by sending to it a light (visible, infra-red or ultra-violet) beam 10 or beams and using the outputs of photo-cells responsive to either the reflection from one lens face, cell 22, and the transmission through the lens, cell 28, or the reflections from both faces, Fig. 2 (not shown), to control proportional servo means which move the lens mounting. The light beam may be modulated by a chopper 11. In the embodiment of the lens mounting a platform incorporates a block, to which the lens is fixed, e.g. by adhesive, slidable on a tiltable member; the block and tiltable member are movable by piezo-electric transducers in response to the photo-electric outputs, Figs. 3, 4 (neither shown). Position-sensitive photocells may be employed (see " Instrument Practice", 1965, Vol. 19, page 733).
Patent GB-485104-A (GB)
Title: Improvements in or relating to electric radiators
IPC: F24C7/06
Filed: 1936-11-13
Abstract: 485,104. Electric radiators. ELEXCEL, Ltd., and WICKERSON, S. A. Nov. 13, 1936, No. 31095. [Class 39 (iii)] In an electric radiator of the high temperature type enclosed in a sheet metal casing 10, the heating element is in the form of a rod 13 and is mounted close to the front panel 14 and substantially at the focus of a curved metal reflector 11 which is separated from the rear of the casing by a distance equal to substantially half the depth of the casing. The panel 14 is heat insulated from the rest of the casing by strips 16 and 17 of asbestos. The element 13 may comprise a number of units in the same axial line. The elements are rendered readily removable by supporting them between spring prong members which constitute the electrical connections. Brackets 33 for attachment to a wall or other support are provided on the casing.
Patent GB-641191-A (GB)
Title: Improvements in processes for use in coating ferrous metal surfaces
IPC: C03C4/00
Filed: 1947-11-24
Abstract: 641,191. Enamelling. POOR & CO. Nov. 24, 1947, No. 31112. Convention date, June 27, 1941. Drawings to Specification. [Class 56] A bonding compound for use in enamelling ferrous metals is prepared by dry mixing antimony oxychloride, silica gel, and lead or sodium arsenate, combining the mixture in an aqueous colloid with stannous chloride and bentonite, and grinding so that the composition can be used as a spray. The silica gel is formel by mixing sodium silicate and citric acid in a paste mill and drying, The SbOCl is formed by boiling 15 parts Sb 2 O 3  and 85 parts HCl (18 per cent Baume) until the gravity is 2.46, adding 5-10 parts of hot 10 per cent soda ash solution to one part of liquor, and washing and drying the precipitated SbOCl. The bonding compound is formed by mixing 0.80 part silica gel, 0.10 part sodium or lead arsenate, and 99.10 parts SbOCl, and 28 parts of this mixture is then combined with one part stannous chloride and 71 parts of 3 per cent bentonite mixture and ground in a ball mill so that the resulting colloidal suspension can be sprayed as a primer spray on the pickled metal sheet. The bentonite mixture which acts as a suspending agent is prepared by heating and agitating three parts of bentonite with 97 parts of water. A glass for use with this bond may contain 20.9 parts feldspar, 40.2 parts borax, 22.9 parts SiO 2 , 5-1 parts soda ash, 4.8 parts NaNo 3 , and 6.1 parts fluorspar, and is fritted and dried. To produce a light grey coating 100 parts of frit ore milled with seven parts clay, three parts opacifier, # part illmenite, 5/16 part black iron oxide, ¥ part borax, and 40 parts water, and the mixture ground to give a 0-25 per cent (preferably 4-8 per cent) residue on a 200 mesh. The final slip is sprayed over the bonding coat, dried and fired below 1580‹F., e.g. 1260-1580‹F., which temperature is lower than that normally used and permits the use of lighter gauge metal. The bonding and enamel coat together are within the range 5/1,000-10/1000 of an inch.
Patent GB-830443-A (GB)
Title: Improvements in or relating to elevating dollies
IPC: B60P1/02
Filed: 1956-10-12
Abstract: 830,443. Lift trucks. NORTHROP CORPORATION, [formerly NORTHROP AIRCRAFT Inc.]. Oct. 12, 1956 [Nov. 4, 1955], No. 31134/56. Class 78 (3). The lifting cradle 14 of a lift truck is raised by four pairs of toggle links 41, 63 pivoted together at F, to the truck chassis at D, and to the cradle at E, the links being extended by hydraulic thrustors 75 acting between tubes 66, 67, which respectively join together the corresponding lower and upper links on opposite sides of the truck, and the forward pairs of toggle links being stabilized by links 64 pivoted to the lower links at G and to the chassis at 74. The lifting cradle is provided with a pair of rails 58 which carry longitudinally adjustable crutches 62 and which are supported for transverse swinging movement by curved bars 52 which are movable through guide devices 61 by screw jacks (not shown). The truck steering and wheel retracting mechanism is identical with that described in Specification 830,444.
Patent GB-940523-A (GB)
Title: Instruction counter with sequential address checking means
IPC: G06F11/00
Filed: 1962-08-14
Abstract: 940,523. Digital computers. SPERRY RAND CORPORATION. Aug. 14, 1962 [Aug. 22, 1961], No. 31136/62. Heading G4A. In an arrangement for checking the operation of a computer program counter, the parity of each successive number in the counter is compared with the parity of the previous number, an error signal being produced if the new parity is incorrect. As shown in Fig. 1, the program counter comprises a 14-bit P register effective to address the computer memory (not shown) over a bus 4, the previous program address being stored in a 14-bit P<SP>*</SP> register. In each program step the contents of the P<SP>*</SP> register are transferred with the addition of +1 or +2 at the adder 1 (Fig. 3, not shown) according as normal sequential addressing or a skip address is called for by the computer control 15; and for a "jump" instruction a new address may be dumped into the P register. The checking method employed for a P<SP>*</SP> +1 or P<SP>*</SP> +2 increment is based on the occurrence of any corresponding even-position bits in the P<SP>*</SP> and P register being "0" and "1" respectively. It is shown in the Specification that the occurrence of such a combination is related to whether the parity changes or remains the same for both P<SP>*</SP> +1 and P<SP>*</SP> +2 increments. The parity of the contents of the P register is generated at 6 (Fig. 4, not shown) and compared at 9 with the previous parity stored at 8. The output 11 of the comparison circuit 9 is positive if the two parities compared are the same, and negative if they are different. A further comparison circuit 12 (Fig. 5, not shown) compares the even-position bits in the P<SP>*</SP> and P registers, the presence of any corresponding-bit combination (0, 1) causing an output which is applied, together with the output on the lead 11 to an error detector 10 (Fig. 5, not shown). The error detector 10, whose functioning is controlled by inputs indicating whether a +1 or a +2 increment is in question, produces an output if the parity of the address in the P register is incorrect, thereby actuating an alarm, stopping the computer or initiating an error recovery program. The Specification describes in detail the circuits shown as blocks in Fig. 1.
Patent GB-230543-A (GB)
Title: Improvements in or relating to electric lamps for use as inspection lamps on motor-vehicles and for like purposes
IPC: F21V21/38
Filed: 1923-12-11
Abstract: 230,543. Wiseman, S., and Westmoreland, A. G. Dec. 11, 1923. Vehicle lamps.-In an electric vehicle lamp having, within its casing a, a drum 1 adapted to accommodate an extensible electric cable b enabling the lamp to be detached from its support e for use in other positions, the drum 1 is made of insulating material and provided with metallic flanges 1<a>, 1<b>, connected with the branched strands b<1>, b<2> of the cable b and contacting with spring contacts 9, 10 which are secured to the casing a and connected by wires 7, 8 to the terminals c<1>, c<2> of the bulb holder c, mounted in an extension 6 of the reflector d. The contacts 9, 10 may be secured to the bulb holder c so as to make contact with the flanges 1<a>, 1<b>. The lamp may be provided, at the rear end, with an observation mirror. In a modification as shown in Fig. 3, the flanges are replaced by stationary plates 15, 16 connected to, but insulated from, the casing a. The wires 7, 8 are connected directly to, and the strands b<1>, b<2>, through spring- pressed plungers 19, to the plates.
Patent GB-739317-A (GB)
Title: Improvements in or relating to dispensing containers
Inventor: TEBBUTT CHARLES NORMAN
IPC: B65D47/26
Filed: 1953-11-10
Abstract: 739,317. Sprinkler closures for containers. METAL BOX CO., Ltd. Sept. 16, 1954 [Nov. 10, 1953], No. 31178/53. Class 125 (3). A container for dispensing powder &c. comprises a tubular body 1 of cardboard &c. provided with a metal bottom closure. A bead 3 is provided near the mouth which supports a sprinkler disc 5 forced into the,mouth, and also forms a groove 4 around the exterior. A cap 7 of metal has a skirt 9 having a curl 10 which extends into the groove 4 and by rotation of the cap the apertures 8 in the cap and 6 in the disc may be brought into register, or the apertures 6 may be obturated.
Patent GB-963383-A (GB)
Title: Improvements in or relating to axial flow compressors
Inventor: KOUSAL MILAN
IPC: F04D19/02
Filed: 1962-08-14
Abstract: 963,383. Axial-flow compressors. PRVNI BRNENSKA STROJIRNA,ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Aug. 14, 1962, No. 31202/62. Drawings to Specification. Heading F1C. In a multi-stage axial-flow compressor with twisted blading, the degree of reaction p and the flow coefficient # decrease from the first to the last stage, the range for p being from 0À7 to 0À5 and the range for # being from 0À65 to 0À4, while the ratio of p to # remains approximately constant throughout the whole blading within Œ8% of the mean value. In some cases the twist of a stator blade may be equal to zero, or nearly so. In the early stages, the use of higher values of p decreases the total twist and the total change of deflection occurring from hub to tip, and the use of higher values of # allows the blades to be shortened, thereby facilitating the use in these stages of constant-section twisted blades. The use in the final stages of lower valves of # allows the blades of these stages to be lengthened whereby secondary losses are reduced.
Patent GB-266486-A (GB)
Title: Improvements in the manufacture of rims
IPC: B21D53/30
Filed: 1925-12-11
Abstract: 266,486. Dunlop Rubber Co., Ltd., and Paull, W. H. Dec. 11, 1925. Hoops.-A wheel rim of the type having flat sides for use with rim brakes is formed from a flat metal strip which is rolled to tubular section, the abutted peripheral edges 2, 3 of the strip being welded together and to the base 1 of the rim. The strip 4 is fed from a roll 5 between rollers 6 - - 10, Fig. 2, the formed rim passing to welding-electrodes 11 and ironing rollers 12, and being finally wound helically on a power-operated drum 13. Specifications 182,604 and 220,834, [both in Class 144 (ii), Wheel tyres, Pneumatic &c.], are referred to.