baber/WOPTO huggingface dataset:
Patent GB-557493-A (GB)
Title: Improvements in or relating to threading mechanism for motion picture apparatus
IPC: G03B1/56
Filed: 1942-05-19
Abstract: 557,493. Kinematograph apparatus. KODAK, Ltd. May 19, 1942, No. 6816. Convention date, Aug. 22, 1941. [Class 97 (i)] A casing door, carrying the movable member of the gate, when opened for film threading, permits loop-forming members to move into operative position, and closure of the door disengages such members from the film ; pressure members, associated with upper and lower sprockets, may prevent closure of the door, when in operative positions. As shown, the film F passes from an upper spool, beneath a sprocket 22 on a spindle extending from a bearing 38, through the gate, and over the lower sprocket 23 to the takeup spool. Loop-forming members 40, having curved faces 42 and curved slots 43, project into the path of one film edge when the door is opened, and are hinged on spindles 45 and pressed by springs 46 through openings in a side plate 37 close to the film edge. The film edge springs into the slots 43 as the film is threaded and drawn over the fixed gate member 21 and lower sprocket. The door 26, carrying the movable gate member 31 on a lens block 27, is provided with adjustable screws 51 which engage the members 40 and push them out of engagement with the film when the door is closed about hinges 25. Pressure members 57 on pivots 59 may be pushed into or out of operative positions relative to the sprockets 22, 23 by finger grips 65, and are retained, both in operative and in inoperative positions, by noses 62 engaging a spring member 64 fixed on the plate 37 over a stop plate 66 with which the noses engage when the members 57 are operative. The members 57, when in inoperative positions, extend into the path of the block 27 and prevent it from entering a housing 39 formed in the plate 37, thus preventing closure of the door. The door has chambers 34, 35 housing the film loops &c. and slots 33 through which the film freely passes from and to the spools. A latch plate 55 on the door has a shoulder 54 engaged by a spring-pressed ball 52 to retain the door in closed position.
Patent GB-430524-A (GB)
Title: Improvements in or relating to holders or fittings for electric lamps or reflectors therefor
IPC: F21V21/26
Filed: 1934-03-05
Abstract: 430,524. Supporting electric lamps and reflectors. WALSALL CONDUITS, Ltd., MILLARD, A. E., and COURT, R. A. B., Excelsior Works, West Bromwich. March 5, 1934, No. 6877. [Classes 75 (ii) and 75 (iv)] A holder for an electric lamp or its reflector, for use in a street, shopwindow, or other lamp, comprises an outer cap 6 in which is pivotally mounted an inner cap 8 which carries the lamp and /or its reflector, means being provided for releasably retaining the inner cap at the desired adjusted angular position with respect to the axis of the outer cap. These means comprise screws 14 engaging in holes or recesses in the lugs 12. The holes are arranged in circular arcs with the pivots 11 as centres. The reflector 22 is held by a pair of lugs 25 and an adjustable block 26 in the flange of a skirt 20 attached by screws 19 to the cap 8. The lamp-holder 15 has a plate 17 with two diametrically opposite, hook-like extensions which are engaged by a part-rotary movement with screws 16 engaging in an inner boss 9 on the cap 8.
Patent GB-603233-A (GB)
Title: Improvements in and relating to straight bar knitting machines
IPC: D04B11/00
Filed: 1945-03-20
Abstract: 603,233. Knitting-machines. COTTON, Ltd., W., LYNAM, J. E. and McCARTHY, P. G. March 20, 1945, No. 6941. [Class 74(ii)] [Also in Group XXIV] A thread carrier of a straight bar machine is given a variable traverse by a converter cam 1-2 and a co-operative follower 4 (see Group XXIV) mounted for relative movement to convert a given displacement in one direction into a variable displacement in another direction. In Fig. 2, two converter cams 1-2, 1<1>-2<1>, with followers 4, 4<1> are provided to operate a pair of splicing carriers, both cams being carried by a slipper 15 mounted for reciprocation on a bar 13 by a draw cam 44, lever 46 and a link 49 that can be disengaged from the slide by studs on a control shaft 43. Each cam comprises members 1, 2 conjointly defining a track with offset ends and adjustable individually to vary the length of the inclined portion and the consequential lift of the co-operating follower 4. Movement of the cam members 1, 2 is effected by screw gears 20, 21 and 23, 24, the latter being slidably mounted on shafts 25, 26 that are rotated as desired by cams on the main shaft, and pawl and ratchet mechanism Figs. 5 and 6 (not shown) controlled by a pattern chain. The follower 4 of each unit is carried by a bar 5 movable vertically in a fixed bracket 14 and connected by chain and sprocket gearing to a shaft 33 which, on rotation, drives a rack 37, Fig. 4 (not shown) and associated carrier driving finger, the engagement of the finger with its carrier rod being controlled by a cam on the shaft 43. Alternatively, the follower may be connected to a vertical rack gearing with a pinion which gears with a rack on the carrier driving bar. The cam 1<1>-2<1> follower 4<1>, bar 5<1>, shaft 33<1> and associated carrier driving finger are similarly operated. The plating carriers are operated in advance of the slur cock draw by suitably timing the draw cam 44 or by providing the link 49 with an elongated slot for engagement with the pin 50 on the slipper 15. Alternatively, the drive for the slipper may be derived from the slur cock draw through a bar 53, Fig. 10, having an eccentric support for the link 49 together with a rack 58 which, by engagement with stops 59, 60, rotates.the eccentric 57 and advances the link relative to the bar 53. The follower 4 may be reciprocated instead of the cam 1-2, 1<1>-2<1>, in which case the rack bar 5 and immediately associated pinion are moved with it. Specifications 554,443 is referred to.
Patent GB-571727-A (GB)
Title: Improvements in or relating to polyvinyl acetal compositions
IPC: C08K5/3442
Filed: 1943-05-03
Abstract: Polyvinyl acetal compositions have incorporated therein a proportion of a monocyclic urea derivative having on each cyclic urea nitrogen a methylol group etherified with an alcohol boiling not higher than 210 DEG  C.  Preferably, the urea derivative is 2-10 per cent by weight of the polyvinyl acetal resin.  A conventional catalyst, e.g. aluminium chloride, sulphuric, hydrochloric, phosphoric or p-toluene sulphonic acid, zinc, ferric or ammonium chloride, boron trifluoride or sulphonium iodides, may also be added to the composition.  Plywood may be prepared by heating a structure formed of alternate plies of wood and the composition (as cement); the plies of wood may be arranged with their grain at substantial angles with each other.  The preparation of ureas, one class of suitable urea derivative, is given in Bull. Chem. Soc. of Japan, Vol. II (1936), pp. 248-261, Kadowaki. The preferred urea derivative is N.N1-bis-(methoxy-methyl) uron; others specified include tetrahydro-1.3-bis-(methoxymethyl) -5-beta-hydroxyethyl-2-s-triazone, N.N1-bis-(methoxymethyl) ethylene urea, N.N1 - bis - (methoxymethyl) parabanic acid, N.N1-bis-(propoxymethyl) barbituric acid and N.N1-bis-(methoxymethyl) alloxan.  General formul  of suitable urea derivatives and a list of specific compounds are given.  Polyvinyl acetals specified are the butyral, formal, acetal, propional and valeral.  Examples are given. U.S.A. Specification 2,321,989 is referred to.
Patent GB-1507871-A (GB)
Title: Control of low thermal capacity domestic central heating boilers
IPC: F24D19/10
Filed: 1976-02-05
Abstract: 1507871 Hot water boilers THORN HEATING Ltd 5 Feb 1976 [19 Feb 1975] 6982/75 Heading F4A A hot water boiler, designed to be associated with a system including a central heating circuit and an indirect heating circuit for a domestic water supply, comprises an electrically controlled fluid fuel fired burner B which supplies heat to a heat exchanger, a thermostat mounted to respond to a predetermined heat exchanger temperature to turn off the burner via contacts 1, a circulating pump P, and a further water thermostat whose contacts 2 are connected along with contacts 1 and the burner control to a terminal means, which has two removable connectors which can be alternatively filled depending on whether the pump is to circulate water through both the above circuits or only through the central heating circuit; the connections at the means being also so arranged that the contacts 2 can operate either the pump or the burner to prevent boiling of the water. In the arrangement shown in Fig. 1 the pump supplies water to a central heating circuit and water circulates in the indirect heating circuit by natural circulation and the contacts 2 are connected to respond to a preset temperature (below that to which contacts 1 respond) to turn off the burner to prevent the water boiling. Contacts 3 are connected to control the pump P in response to heating requirements (e.g. room thermostat or time switch). In the arrangement shown in Fig. 2 the pump circulates water through both the circuits and in this case the contacts 2 are connected to turn off the pump to prevent the water boiling. Contacts 4 are equivalent to the contacts 3 referred to above. In one embodiment (Fig. 3, not shown) all the components are connected to socket means and two alternative multipin plugs are insertable, the internal wiring of which provides the correct interconnections when the plug is inserted.
Patent GB-730500-A (GB)
Title: Polishing material
IPC: C09G1/08
Filed: 1953-03-13
Abstract: A polishing material which is substantially rigid at ordinary temperatures and maintains its composition substantially constant on continued exposure to the atmosphere, comprises a wax or wax-like material or a mixture of such materials, a non-volatile solvent, and a spread-promoting substance.  The wax or waxlike material may comprise paraffin wax, beeswax, carnauba wax, candelilla wax or a mixture of these or other such materials. Magnesium stearate or other water-insoluble soap is preferably added to the composition.  The non-volatile solvent may be an ester of phthalic acid, e.g. di-butyl phthalate; amyl salicylate and triethyl citrate are also specified. A small proportion of a volatile solvent may also be added to facilitate solution of substances such as colouring matter.  The spread-promoting substance may be an organic substance which is miscible with the molten wax-solvent mixture, but which tends to crystallize out when the cooled mixture solidifies; specified substances are nitronaphthalene, naphthalene, camphor and tri-phenyl phosphate or mixtures thereof.  In an example, a polish comprises: paraffin wax 36 per cent by weight, carnauba wax 23 per cent, beeswax 7 per cent, magnesium stearate 7 per cent, di-butyl phthalate 14 per cent, tri-phenyl phosphate 3 per cent, nitro-naphthalene 7 per cent, and naphthalene 3 per cent, the molten mixture being moulded or cast to form blocks, e.g. in contact with fibrous material which may constitute a holder.
Patent GB-212117-A (GB)
Title: An improvement in the making of ladies' & gentlemen's collars and cuffs
IPC: A41B3/00
Filed: 1923-03-12
Abstract: 212,117. Masding, W. H. J. March 12. 1923. Collars, linen; shirt cuffs.-The raw edges of a collar or cuff are bound by overstitching, before being patent-turned, in order to prevent fraying. As shown, for a stand-up collar formed from two pieces a, b of double ply fabric, the raw edges c, c' are bound by overstitching d and are then patent-turned and secured by a line of stitching c<3>.
Patent GB-922039-A (GB)
Title: A method of drawing or extruding elongated metallic workpieces
Inventor: GUEST JOSEPH CLIFFORD
IPC: B21C23/32
Filed: 1961-02-27
Abstract: 922,039. Drawing; extruding; making tubes. T.I. (GROUP SERVICES) Ltd. Jan. 22, 1962 [Feb. 27, 1961], No. 7042/61. Classes 83 (2) and 83 (4). A method of making a tube or bar of round or other section comprises placing a metal workpiece 3 within an extensible metal envelope 7, 8 formed, at least in part, of longitudinally divided sections secured together to permit easy separation, heating the assembly, drawing or extruding it, and subsequently removing the envelope. The workpiece 3 may be of beryllium. A central core 4, preferably of a material having a higher expansion coefficient than the workpiece, is placed within the workpiece and a hollow liner 7 is surrounded by longitudinally divided sections 8, which may be of steel, secured together by light welding at 9 and also at 10 to end plugs 5, 6. A coating of lime is applied to these sections 8 to prevent their welding together and to the liner during the extrusion or drawing ; the sections may also be oxidized or coated with an oxalate to promote spreading of the lime. After extrusion or drawing the assembly is machined or pickled to remove the welding 9, 10, the sections 8 are detached, the liner 7 is removed by pickling and the core 4 is then stretched to facilitate its removal. The core may comprise a tube of higher expansion material and a solid inner portion. Alternatively, the core may be omitted and a fixed mandrel used. The liner 7 may be omitted when using a solid workpiece or a core.
Patent GB-164494-A (GB)
Title: Improvements in locks
IPC: E05B37/00
Filed: 1920-03-09
Abstract: 164,494. MacÚ, J. March 9, 1920. Locks, revolving- barrel; master-key mechanism; locking sliding latches; keys, keyholes, and escutcheons; sliding bolts. - A lock includes a series of barrels, each consisting of an inner member having a projection to engage a key, and an outer member adjustable for position upon the inner member, and so arranged that when the barrels are set by the key, a slot in the outer member is brought into position to receive one end of a rocker, the other end of which is thereby removed from a position in which it blocks the boltoperating knob. The form shown has, in each barrel, two setting rings for engaging with the key, and one ring for centralizing the barrels upon the key. The main casing a encloses a series of housings c, each loose within its own chamber, and each bearing a number of discs c<1>, c<2>, c<3>, cooperating with a tubular key, by which the housings are so arranged as to bring gaps h into position to receive the end of a rocker h<1>, which is pivoted at h<2> to the main casing. The other end i of the rocker is then withdrawn from a notch in a spindle i<1> which bears a pinion engaging a rack i<4> on the bolt is. A spring operated by an external knob can be set to press the rocker in either direction. The key is formed with a flat hexagonal head f which engages an aperture in a plate f<5> which is rotated by means of nibs f<8>, carrying the key round with it. When the key is inserted, it engages with projections f<2> upon one of the discs c<3>, in each section, to centralize the barrels upon the key, and when turned it engages with projections f<3> upon the locking-discs to arrange the barrels. The discs of each set being fast to each other and to their respective housings, it is sufficient for the key to engage properly any one locking-disc of each set. Hence the same lock can be operated by a number of different keys, and sets of locks can be arranged to be opened by master-keys. The discs can be assembled in various positions within the housings, thus permitting of further variations. To enable the bolt to be drawn directly by a handle from inside, the arm i which locks the spindle i<1> may be mounted upon a sleeve surrounding the pivot h<2>, upon which it is movable in a direction to free the spindle without moving the arm h'. In a modification, Fig. 9, the arm i locks into a sleeve i<2> which is normally coupled to the spindle i' by a pin i<8>, which can be withdrawn to free the spindle from the action of the locking mechanism.
Patent GB-816858-A (GB)
Title: An improved visual indicator device
Inventor: TAYLOR RICHARD HABBIJAM
IPC: G09D1/00
Filed: 1955-03-11
Abstract: 816,858. Signs. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 8, 1956 [March 11, 1955; Sept. 15, 1955], Nos. 7192/55 and 26420/55. Class 3(2) An indicator comprises a frame 2 having opposed channels for slidably receiving a number of perforated panels 1 removably carrying channel-shaped members 14 which in turn slidably receive perforated strips 16 removably carrying indicating pegs 17. A number of units 14, 16 may be carried by a like device of larger dimensions (see Figs. 6 and 7, not shown). The indicator is provided with panels 22, 23 which stand proud of the frame 2 in order to permit movement of the panels 1, the panel 23 being hinged to the frame 2 and the panel 22 being fixed thereto or slidably mounted thereon. The indicator is also provided with movable pointers. 31, U-shaped pegs for joining strips 15. together and leaf-springs for locating the strips in position when they are adapted to slide vertically.
Patent GB-419998-A (GB)
Title: Improvements in two-speed pedal-crank driving-mechanism for cycles
IPC: B62M11/14
Filed: 1934-03-07
Abstract: 419,998. Change-speed gearing. WOODWARD, R. T. C., 69, Burns Road, Stoke, Coventry, and ADCOCK, J., 7, Greswolde Road, Sparkhill, Birmingham. March 7, 1934, No. 7207. [Class 80 (ii).] Two-speed gearing for cycles operated by momentary backpedalling comprises two driving- members 1, 2, Figs. 1 and 9, adapted to be turned at different speeds in the same forward direction and coupling means 15 for selectively clutching these members to a driven member 3. In Fig. 1, the members 1, 2 are sun gears driven from stepped planets 5, 6 rolling on a fixed annulus 7 so that both speeds gear up. In Fig. 9, the members 1, 2 are driven constantly through a fixed countershaft 30. A coupling ball 15 is slidable in a straight slot 18 in the member 3 every time speed is changed, being thrown over by the inclined faces 21, 23, Fig. 3, of channels 16, 17 in the members 1, 2, respectively. In the high-speed position of Fig. 2, the flat upward-driving face 19 of the channel 16 engages the ball 15 which drives steadily on to the opposite face 20 of the slot 18. To change speed, a short back-pedalling movement brings the members 1, 2 downwards relatively to the slot 18 to the position of Fig. 3, which shows the shifting inclined face 21 of channel 16 in the act of throwing the ball 15 over into the other channel 17. On resumed forward pedalling, the drive is picked up by the ball 15 held in the slot 18 and pushed steadily by the advancing straight face 29 of the member 2, the member 1 passing on idly at higher speed. The change to high speed may be effected by a single backpedalling movement, a shifting face 23 on the member 2 bringing the ball 15 back to and through the position of Fig. 3 as it is thrown leftwardly into slot 16. Too much backpedalling changes speed twice, that is back to low speed. The change to high speed is preferably therefore effected in two stages. To this end, the slot 18 is formed with a shoulder 24, Fig. 6, which stops the ball 15 midway as it is being thrown leftwardly by the descending inclined face 23. On resumed forward pedalling, a bevel 25 on the member 2 advancing upwardly strikes the ball 15 and completes the throw over to the left so that the following straight face 19 of the member 1 picks up the drive on high speed. In an arrangement described with reference to Fig. 10, not shown, there is an epicyclic train with three spur elements, and the change is between a 1 to 1 drive and an overdrive.
Patent GB-577120-A (GB)
Title: Improvements relating to oscillographic apparatus
IPC: G01R13/30
Filed: 1944-04-19
Abstract: 577,120. Cathode-ray oscillographs. COSSOR, Ltd., A. C., and MELCHIOR, A. N. April 19, 1944, No. 7267. [Class 37] Apparatus for marking a time-scale on oscillograph films comprises a luminescent screen subjected to bombardment by an electron current whose intensity may be varied, and means for focussing the light from this source upon the film alongside and at the same time as the oscillographic trace. The source 3 comprises a cathode 10 and heater 11, the modulating grid 12 and anodes 13, which are provided with holes through which a beam of electrons impinges on the luminescent screen 9. The illuminated spot so formed is focussed by lenses 4, 8 and prisms 5, 6 upon the camera drum 2, adjacent to the image produced from the oscillograph tube 1 by the lens system 7. The heater of the tube 3 may be supplied with A.C. from the transformer 14 which is provided with an H.T. winding supplying the rectifier 15 and smoothing circuit comprising resistance 17 and condensers 16. One end of the smoothing circuit is connected to the anodes 13. The cathode 3 is connected to an adjustable tapping 22 on the potentiometer 21 to provide a brightness control, and the grid 12 via a limiting resistance 19 and the resistance 20 to the negative supply. The modulation is applied across the resistance 20 and may be derived from a sinisoidal source connected to the terminals 23, 24 by means of an amplifier 25 and limiter 26. Alternatively pulses from a synchronised pulse generator may be used, or the modulation may be derived from a mechanical interruptorcontrolled by apparatus under test. A switching circuit 27 may be provided and so connected to contacts on the drum 2 and to the oscillograph 1 and amplifier 25 that the light sources are only switched on during a single revolution of the drum.
Patent GB-186012-A (GB)
Title: Improvements in transmission belt and the like couplings
IPC: F16G3/02
Filed: 1922-03-13
Abstract: 186,012. Lambert, W. F., and Lambert, J. H., Lambert, J. H., and Lambert, T. W. March 13, 1922. Belt and band fastenings. - In belt and like couplings of the kind in which members connected to the belt ends are formed with eyes or lugs adapted to be aligned for the formation of a hinged joint, each of the belt-end members comprises two parts adapted to engage opposite surfaces of the belt and connected to each other through a slot in the belt. As shown in Figs. 1 and 2 the belt ends are connected by a metal, catgut, or other pin 8 passing through aligned eyes or lugs formed upon members attached to the belt ends, each belt-end member comprising a pair of sheet metal plates 2, 3, hinged at 4, one plate 3 being passed through a, slot 5 in the belt, in which the hinge 5 lies when the plates 2, 3 are closed together, bringing eyes or lugs 2<a>, 3<a> thereon into alignment. Prongs or teeth 7 may be pressed up out of the metal plates to dig into the belt.
Patent GB-1470022-A (GB)
Title: Purifying used lubricating oils
IPC: C10G31/11
Filed: 1975-02-21
Abstract: 1470022 Purifying used lubricating oils INSTITUT FRANCAIS DU PETROLE 21 Feb 1975 [6 March 1974] 7413/75 Addition to 1458314 Heading C5E Used lubricating oils, e.g. from motor car engines, gear-boxes and differentials, containing metal compounds are purified by heating to 200-500 C., cooling and then filtering through a semi-permeable membrane having a cut zone in the range 5000-300,000 and which is permeable to the oil but not substantially permeable to the impurities to be removed. The heating can be carried out in the presence of water, steam and/or slaked lime. The oil can be diluted with 10-50 volume per cent of a hydrocarbon, e.g. gasoline or n-hexane, or hydrocarbon halide. The filtration can be carried out at 10-80 C. with the oil being circulated along the face of the membrane at 0À2-20 metres per second. The filtration can be carried out at 0À1-50 bars abs. by ultrafiltration using a pressure difference of 0À5-15 bars or by dialysis. Various suitable membrane materials are listed and in the examples a membrane comprising a mixture of a copolymer of acrylonitrile and sodium methallyl sulphonate and a copolymer of acrylonitrile and a vinyl-pyridine quaternized with methyl sulphate is used.