baber/WOPTO huggingface dataset:
Patent GB-879481-A (GB)
Title: Improvements relating to jet noise suppressors
IPC: F02K1/40
Filed: 1958-08-20
Abstract: 879,481. Jet-propulsion nozzles. UNITED AIRCRAFT CORPORATION. Aug. 20, 1958 [Aug. 20, 1957], No. 26744/58. Class 110 (3). A jet-propulsion nozzle comprises gas passage defining means terminating in a plurality of slots which may be arranged in a series of discrete compact clusters in which the aerodynamic efficiency is good or in a substantially continuous pattern of circular form defining intermediate additional gas passages in which effective noise suppression is obtained. A noise suppressor 20, Fig. 2, comprises a plurality of concentric coaxial duct units 39 each of which has an annular inlet 40 which blends into three ducts 42, 44, 46 terminating in three circumferential slots 48, 50, 52. In the clustered or non-silencing position, Fig. 4, the slots are arranged together so as to form three equal area-shaped exhaust gas passages which are circumferentially spaced about the exhaust outlet. Each duct unit 39 may rotate about rings 66, 68 but, as shown, only the units B to F rotate. Operation of the piston and cylinder unit 76 causes the drum 86 to rotate and the rod 94 to move the duct units to the position shown in Fig. 5 in which the slots form a substantially continuous pattern of circular form. Although the arm 94 is attached to the unit F 1 , the other units being actuated by lugs 100, 102, 104 which engage stops 98. Lugs 112 are provided to enable the units to be returned to their original position. In the position shown in Fig. 5, a circumferential clearance is left between adjacent slots to allow the entry of atmospheric air into the spaces between adjacent slots. Specifications 823,302 and 824,503 are referred to.
Patent GB-1350653-A (GB)
Title: Apparatus for compensating for deviations in warp tension during shedding in travelling wave shedding looms
IPC: D03D47/26
Filed: 1971-04-19
Abstract: 1350653 Controlling warp tension in looms VYZKUMNY USTAV BAVLNARSKY 19 April 1971 [28 April 1970] 26751/71 Heading D1E A device for compensating for warp tension differences caused by shedding in travelling wave shed looms comprises a pair of parallel bars 6 extending across the warp 2 whose lower edges 4 guide the warp and a warp deflecting member on the opposite side of the warp positioned between the bars 6 and including a rotating helical or stepped helical cam 18. The bars 6 are adjustable parallel to the warp and may be rotated so that either of their edges acts as the warp guiding edge. A thin flexible sheet 19, Fig. 6 may be held by one of its edges so that it lies between the cam 18 and the warps 2 to prevent the warps from being worn. Alternatively the cam may be composed of a large number of individual cam discs 24 or 26 angularly offset to provide a helically extending surface, and members 40 are provided having projections on their lower sides which run in grooves around the cam disc peripheries and a U-shaped upper projection 41 guiding the warp. The members 40 are held stationary by a flexible belt (42), Fig. 16 (not shown) connecting them across the warp.
Patent GB-190295-A (GB)
Title: Apparatus for forming balls
IPC: B21H1/14
Filed: 1921-10-12
Abstract: 190,295. Canda, F. M. Oct. 12, 1921. Rolling balls.-A mill for rolling balls comprises a pair of disc-rolls, either or both of which may rotate, one of the rolls 1, Fig. 3, having a series of concentric grooves of semi-circular section, while the other. 2, has alternate grooved and plain sectors 6, 7, Fig. 4, the former of which are elevated above the latter. The sectors 6 are helical in form and are shaped so that the grooves therein have a steeply-inclined leading-in channel, and a rolling surface of smaller nitch. The length of the effective rolling surface is arranged to be substantially the same, at all distances from the centre of the rolls. The work-bar, heated as necessary, is introduced between the upper roll and one of the sectors 7 until its end abuts against the hubs 9 of the upper roll, and the finished balls are delivered into the other ungrooved sector which may be formed with a conical surface to facilitate the expulsion of the balls by centrifugal force. Fig. 7 shows a pair of intergeared rolls mounted on central spindles and provided with peripheral bearing rollers 12, 15. The rolls are held in yielding contact by springs 17<a> acting on the upper roller-race 16.
Patent GB-887042-A (GB)
Title: Improvements relating to cyclometer type counters
Inventor: GRAYSTON PETER NORMAN
IPC: G06M1/34
Filed: 1957-08-28
Abstract: 887,042. Counting-apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 14, 1958 [Aug. 28, 1957], No. 27119/57. Class 106 (1). In a mechanical counter, each numeral wheel has associated therewith a zeroizing pawl movable through a limited operating stroke and adapted during such stroke to engage one of a plurality of projections or notches on a peripheral face of the wheel. As shown, Fig. 1, the lowest order numeral wheel of a counter is driven by a gear 3 and each numeral wheel comprises coaxial parts 2a, 2b, Fig. 2, held in frictional engagement by a spring clip 5, the part 2a bearing the numerals and the part 2b being toothed for co-operation with Genevatype transfer mechanism. A bridging member 6 carrying zeroizing pawls 7 is pivotally mounted on the numeral wheel spindle, the pawls 7 being of a springy material and adapted to co-operate with notches 14a, 14b, 14c, Fig. 4, on the numeral wheel peripheries. A hinged front cover 19 carrying a toothed segment 20 meshing with a toothed segment 18 carried by the bridging member 6 is arranged when opened and closed once to shift the pawls 7 from a stop 17 to a stop 16 and back again, the range of the stroke being such that each numeral wheel, if not at zero, is rotated in a zeroizing direction by co-operation of one of the notches 14 with the pawl 7. The notches 14b are three digits away from the notches 14a, 14c, the notches 14a are four digits away from the notch 14c, and the pawl stroke covers a distance equivalent to three digits so that after at most three operations of the cover 19, the notches 14a are in the position shown, and the counter is zeroized. In modifications (Figs. 5, 6, not shown), the bridging member 16 is rocked by depressing a pushbutton. The numeral wheel may bear alphabetical letters corresponding to numerical values. Specification 371,989 is referred to.
Patent GB-249765-A (GB)
Title: Improvements in or relating to anti-aircraft or other shells
IPC: F42B12/60
Filed: 1925-10-29
Abstract: 249,765. Triebart, J. K. E. Oct. 29, 1925. Projectiles. - An antiaircraft shell is made with an inner prismatic or cylindrical primary grenade 1 having longitudinal weakenings 7 in its wall and surrounded by a corresponding number of secondary grenades 6 forming the outer circumference of the shell and held together between the base and the nose of the shell, the inner primary grenade acting as a binding bolt. There may be several rows of secondary grenades. Fig. I shows three such rows secured together by bands 9. The bottoms of the secondary grenades are secured by the socketed end 10 of a disc 8<a> slidably but non- rotatably fitted over the end of the inner primary grenade 1 and clamped by a nut 8. The disc 8<a> carries the driving band 13. The upper end of the primary grenade 1 screws into the base-plate 2 of the nose fuze which is socketed at 10 to secure the tops of the secondary grenades. The various grenades are provided with filling plugs 4, and the secondary grenades with short fuzes 12 for exploding them at various short intervals after they are scattered by the bursting of the primary grenade fired by the nose fuze.
Patent GB-1081173-A (GB)
Title: Improved hydraulic artificial age-hardening press
IPC: H01F41/04
Filed: 1965-06-28
Abstract: 1,081,173. Metal-working presses. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. June 28, 1965 [July 15, 1964], No. 27218/65. Heading B3H. An hydraulic artificial age-hardening press is formed by a number of units connected sideby-side with each other, each unit including a trough 17 in which workpieces 1 are located, a yoke 2 above the trough, and a base-plate 13 common to all the units. The workpieces are positioned between heating fillets 11 and spacers 12 and are clamped firmly by an hydraulic cylinder 9 acting through a crosshead 19, tie rods 10, and the yoke 2. A horizontal hydraulic cylinder 16 clamps the workpieces laterally. The workpieces are heated while clamped by passing steam through the fillets 11 or by heating the fillets electrically, an insulating layer 25 separating the troughs from a frame 24. Water is then admitted to the fillets for cooling the work. After age-hardening the hydraulic pressure in the cylinder 9 is released, allowing a spring 27 to lift the tie-rods 10, thus permitting the yoke 2 to be slid clear of the trough. The yoke is connected by a pin 4 to a carriage 3 which is moved along tracks 6 by a chain drive 8. The workpieces can then be lifted on the base-plate 13 by a lifting rod 14 operated by a pinion 18. The pinion driving shaft 15 and a chain-driving shaft 7 are common to the adjacent units.
Patent GB-1086684-A (GB)
Title: Improvements in or relating to the treatment of mould surfaces
Inventor: MCNAIR JAMES RUSSELL FARRELL
IPC: B29C33/64
Filed: 1964-07-02
Abstract: 1,086,684. Spray-producers. ABRASIVE DEVELOPMENTS. June 28, 1965 [July 2, 1964], No. 27283/64. Heading B2F. [Also in Divisions B5A] A mould surface is simultaneously cleaned and treated with mould release agent (see Division B5A) by spraying with a mixture of abrasive glass beads or fused aluminium oxide with di-methyl silicone or calcium, aluminium or zinc stearate in a carrier liquid, e.g. water, which may also contain sodium nitrite rust inhibitor. The spraying is conducted in an enclosed cabinet 10 (Fig. 1, not shown), from which the mixture is continuously recirculated by a pump, e.g. at 60p.s.i., to inlet 29 of a blasting gun provided with a rubber nozzle piece 45 having a carbide insert 47 and leading from a rubber lined chamber 28; compressed air from air line nipple 34 is supplied to chamber 28 by air nozzle 40, provided with an exterior rubber coating, via a passage 36 into which a rubber ball 35 is restrained from entering by a pin 37. The recirculated mixture may alternatively be sprayed hydrostatically.
Patent GB-1476830-A (GB)
Title: Process for the preparation of polyurethanes
IPC: C08G18/18
Filed: 1975-06-27
Abstract: 1476830 Polyurethanes RHONE POULENC INDUSTRIES 27 June 1975 [28 June 1974] 27351/75 Heading C3R A process for the preparation of a foamed or unfoamed polyurethane comprises reacting an organic polyol and an organic polyisocyanate in the presence of a catalyst comprising bis  -N- (6 - dimethylaminohexyl) methylamine, generally in an amount of from 1 x 10<SP>-3</SP> to 3000 x 10<SP>-3</SP> mol per mol of polyol, and optionally a metallic or organo-metallic catalyst, the ratio of the number of metal atoms of the said metallic catalyst to the number of tertiary nitrogen atoms of the said amine catalyst generally being from 0À1 to 1. Suitable metallic catalysts are dibutyl tin dilaurate, stannic chloride, stannous octate, stannous oleate, dibutyltin bis-(2-ethyl hexoate), ferric chloride, cobalt benzoate and cobalt 2-ethylhexoate. The polyisocyanate can be any conventional aromatic, aliphatic or cycloaliphatic diisocyanate or a prepolymer. Suitable polyols are polyhydric polyethers, polyesters, polyesteramides, polyurethanes or hydrocarbons, or optionally modified caster oil, or a silanol or siloxane etherified with a polyhydric polyether or polyester. The reaction mixture may also comprise trimerization catalysts e.g. alkali metal salts of phenols or an alkali metal hydroxide; catalysts for the formation of carbodiimide groups e.g. phospholines and phospholine oxides; regulators of the urethane-forming reaction e.g. malonitrile, acetylacetone and benzoylacetone; conventional foaming agents and surfactants and other additives. In the Examples foams are prepared from reaction mixtures comprising bis-N- (6 - dimethylaminohexyl) methylamine in dipropylene glycol, a siloxane/alkylene oxide block copolymer surfactant, either a polyisocyanate obtained by the phosgenation of an aniline-formaldehyde condensate consisting mainly of 4,4<SP>1</SP>-diisoocyanato-diphenylmethane, or tolylene diisoocyanate and either (1) water, fluorotrichloromethane and a polyol mixture consisting of an adduct of propylene and ethylene oxides to a mixture of sucrose and propylene glycol, and an ethylene oxide/triethanol-amine adduct; or (2) fluorotrichloromethane and a propylene oxide/ glycol glucoside adduct; or (3) water, stannous octoate and an adduct of ethylene and propylene oxides to glycerol.
Patent GB-626970-A (GB)
Title: Arrangement in remote control systems
IPC: H02J13/00
Filed: 1946-09-12
Abstract: 626,970. Electric selective signalling. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Sept. 12, 1946, No. 27390. Convention date, Sept. 24, 1945. [Class 40 (i)] The invention is concerned with a system in which sub-stations, e.g. 1 ... 5, Fig. 2, can signal to a central station C and has for its object the limitation of a fault in one substation to that substation alone. According to the invention, the substations are interconnected by repeaters, and a fault results in the faulty station being rendered incapable of operating the repeater immediately following it. As shown, station 3 acts as a repeater for stations 1 and 2, station 4 acts as a repeater for stations 1, 2 and 3 while stations 5 are connected to the central station C over repeaters M6, M7, Fig. 1. Substations signal by interruption of line current; thus stations 1, 2, Fig. 1, signal by opening contacts S1a, S2a, releasing relays M1, M2 in substation 3 to open contacts M1a, M2a to release relay S4 controlling contact S4a; similarly substation 4 acts as a repeater; relay M4 actuating contacts M4a, M4b to control relays S6s controlling contact S6a; stations 3, 4 signal by breaking contacts M3a, M5a, to interrupt the circuits of relays S4, S6; and station 5 signals by opening contact S7a. In the central station, relay M8 is released in accordance with the received signal. When relays S4, S6 and M8 de-energize, the circuits of delay release relays H1, H2 and V are broken, but the normal signal interruption is not long enough to cause them to fall away. However, a long interruption, corresponding to a fault, results in relay V first falling off, followed by release of relays H1, H2. Relay V releases to make contacts Va, Vb, actuating relays B6 and L which lock up over contacts B6a and Lb; relay B6 closes contact B6c to shunt contact M6a, thus temporarily preventing stations 1 ... 4 from controlling relay M8, and energizing relay M8 to re-actuate relay V. Assuming relay H1 releases next, relay B2 energizes to lock up and actuate relays M4, S6, before relay H2 releases, and relay M6 is energized to release relay B6 and break contact B6c, restoring relay M8 in the central station for actuation by all substations except substation 2; relays H1,  H2 re-energize as soon as relays S4 and S6 are actuated. If relay H2 releases before relay HI, the same state is reached. Similarly, faults in stations 1, 3, 4 and 5 cause relays B1, B3, B5 and B7 to lock. The energization of relay L releases long delay relay T to actuate relay O which causes an asking signal to be sent to the substations and releases relay L; the substations reply and the one at fault is revealed by lack of reply.
Patent GB-463445-A (GB)
Title: Machine for fixing locks, fastenings and fittings to cardboard, leather and like materials
IPC: B27F7/15
Filed: 1935-10-05
Abstract: 463,445. Attaching pronged fastenerelements. CHENEY, C. W. Oct. 5, 1935, No. 27534. [Class 89 (iii)] A machine for fixing pronged lock &c. elements to attache cases, &c., of the general character described in Specifications 396,726 and 462,676 and embodying tools g, g<1> as described in Specification 215,478, [Class 89 (iii)], is provided with an adjustable linkage, between the treadle i and the plunger-actuating lever h, adapted to swing past its maximum pressureapplying position. The plunger head e is held in raised position by a weight h<5> on the lever h, and receives its operating stroke from the treadle i. The latter is pivoted at i<2> and its arm i<5> is pivoted to a link j the upper end of which is forked and is pivoted to the lever h by a pin l, Fig. 3, having an eccentric portion l<2> engaging the lever. The pin is rotated, to effect adjustment of the linkage i<5>, j, by a handle l<1> having a spring-pressed locking pin m adapted to engage one of a series of notches l<5> in the link j. The linkage i<5>, j imparts maximum pressure to the tool g when it is straightened, as at the line q, and is adapted to swing past this line, as to the line r, to inform the operator, by reduction of pressure on the treadle, that clinching has been effected. The linkage is returned to inoperative position by a resilient stop s and/or by the springs in the tool g, and by the weight h5.
Patent GB-235774-A (GB)
Title: Improvements in button hole sewing machines
IPC: D05B3/08
Filed: 1924-11-18
Abstract: 235,774. Hennig, A., and Anker-Werke Akt.-Ges. Nov. 18, 1924. Variable-speed ratchet gearing.-The feed in a buttonhole sewing-machine is automatically reduced to space the barring stitches closer together than the side stitches by reducing the stroke of the ratchet elements 19, 20 driving the feed-cam 18. This is effected by shortening a lever-arm 6 in the system of links and levers 5, 6, 13, 14, 15, 17 through which the driving-shaft 3 actuates the ratchet device. The eccentric rod 5 is pivoted' to the disc 6 rotatably mounted on a slide 8, a block 11 slidable in a slot in the disc being pivoted to a radius link 12 to which in turn is pivoted the link 13. The slide 8 is displaced against the action of a spring to vary the effective length of the lever arm 6 by an adjustable cam 36 acting through a bell crank lever 29. The feed may also be varied by manually rotating the ecentric pivot mounting 33, 34 of thelever 29.
Patent GB-699855-A (GB)
Title: Remote handling arrangements
IPC: G21C1/30
Filed: 1949-10-27
Abstract: 699,855. Nuclear reactors. MINISTER OF SUPPLY. Oct. 27, 1949 [Nov. 27, 1948], No. 27626/49. Class 39(iv) Pellets to be subjected to neutron irradiation are placed in receptacles in a plug longitudinally movable in a bore extending to the core of an atomic pile. The pellets are fed to and removed from the receptacles by gravity through inclined passageways in the outer concrete layer. A mechanical and electrical interlock system prevents both the treatment of pellets until a pellet receiving flask has been attached to the outer passage and the presence of two pellets in the inlet passage at the same time. As shown, the plug 14, having pellet receptacles 15, is movable by handwheel 20 along the bore 13 extending from wall X to core Y. A pellet to be irradiated is inserted in the outer end of the inlet passageway 10 down which it rolls to the receptacle 15. After treatment, the receptacle containing the pellet is positioned opposite the inner end of the outlet passageway 12, the plug 14 is turned 180 degrees by handwheel 35 and the pellet falls into 12 and rolls to the pile outer surface. When the pellet receiving flask is in position at the outer end of 12, the plug 14 may be mechanically freed of longitudinal movement in or out of a pile. A locating key is manually disengaged from 14 which is then moved longitudinally by handwheel 20 until the required receptacle registers with the inner end of 10. The key is then engaged with 14 and the electrical interlock system simultaneously energized. Rotation of handwheel 35 through 180 degrees inverts receptacle 15, the pellet therein rolls into 12 towards the receiving flask at the pile outer surface X and simultaneously an electrically operated gate at the inlet of 10 is operated to receive a pellet. Further rotation of 35 at this stage will not effect repeated operation of the gate to direct several pellets into the passageway simultaneously. A manually adjusted handle 45 is now operated to free the pellet from the gate and to release a second gate in 10, thereby permitting the pellet to roll into 15. The locking relay of the locating key of 14 is released, the locking system is de-energized and 14 may be set to a fresh position.
Patent GB-224378-A (GB)
Title: Improvements relating to laminated springs for vehicles
IPC: F16F1/22
Filed: 1923-11-03
Abstract: 224,378. Stott, J. H. Nov. 3, 1923. Laminar springs; gaiters.-A device for reducing the effective span of a laminated spring after a predetermined amount of flexure of the spring and so providing a graduated suspension comprises a rigid member formed of two channels 1, 13 secured together and adapted to be clamped on any suitable portion of the spring and provided with one or more adjustable stops placed in one or more apertures in the channel 1. The stop may comprise a rubber or like buffer 12 carried by a shank 9 secured in a bush 7. The member may be clamped to the spring by means of screwed buffers 11 and studs 15 provided with rollers 16. A rebound stop comprising a stud 24 may be provided. The channels 1, 13 comprise a gaiter and may be made dustproof in any suitable way. Fig. 5 shows a stop comprising a rubber buffer 20 having a recessed stop 22. Specifications 188,428 and 193,161 are referred to.
Patent GB-972330-A (GB)
Title: Improvements relating to sight glass mountings
Inventor: MCCULLOCH LEIGH ROY
IPC: G01P13/00
Filed: 1962-07-19
Abstract: 972,330. Gauge glasses. STAINLESS STEEL ENGINEERS Ltd. Oct. 4, 1963 [July 19, 1962], No. 27722/62. Heading G1H. In sight glass mountings the glass tube 8 is held in position within an apertured tube 1 by ferrules 4 screwed into the ends of the tube 1 and engaging the ends of the tube 8. The ferrules 4 are held in position by lock-nuts 7 and are provided on their ends remote from the tube 1 with threads for engagement with pipes.
Patent GB-1149583-A (GB)
Title: Motor-pump unit
IPC: F04D13/06
Filed: 1967-06-16
Abstract: 1,149,583. Centrifugal pumps. ITT INDUSTRIES Inc. June 16, 1967 [June 20, 1966], No. 27795/67. Heading F1C. [Also in Division H2] In an electric motor-pump unit, e. g. for central heating installations, having a generally spherical casing, the electric motor is centrally mounted in the casing with its rotational axis X-X, Fig. 2, lying perpendicular to the axis Z-Z passing through the inlet and discharge ducts. A centrifugal pump impeller 27 is arranged at each end of the motor, this arrangement balancing axial thrusts on the shaft 25. Plastics covers 10 can be removed to provide access to the pump impellers. Each cover has a removable plate 12 of plastics material treated to provide a central transparent inspection window 13. A by-pass passage 35, 36 has a flow control valve therein adjusted by a knob (15, Fig. 1 not shown), positioned on the outside of the casing and carrying a pointer (16) co-operating with a scale (17) on the casing.