baber/WOPTO huggingface dataset:
Patent GB-677973-A (GB)
Title: Improvements in and relating to variable area nozzles for turbo-jet engine installations
Inventor: GUPPY THOMAS GEORGE
IPC: F02K1/08
Filed: 1951-02-22
Abstract: 677,973. Jet-propulsion plant. BLACKBURN & GENERAL AIRCRAFT, Ltd. Feb. 22, 1951, No. 4340/51. Class 110(iii) A turbo-jet engine has a variable area nozzle which is controlled by the angular setting of two oppositely movable hinged panels which divide the jet duct or form the ends of the division between twin jet ducts. Twin ducts are divided by fixed panels 2, 3 hinged to the movable panels 4, 5 which are themselves hinged to mutually hinged panels 7, 8 situated rearwardly of the nozzle. The movable panels are actuated through a linkage system 9-12 controlled by a jack responsive to the acceleration of the engine or the starting up of the reheater. Flutter in the panels 7, 8 is prevented by tubes 15, 16 positioned between extensions 17 on the duct. The nozzle is preferably of elongated shape with the panels centrally situated along the smaller axis. Twin ducts are superimposed on one another or arranged sideby-side. When applied to single ducts the panels 7, 8 are dispensed with and the division is horizontal or vertical. The movable panels are curved or otherwise shaped to contact the walls of the duct or ducts. The inner surfaces of the panels 2-5 are provided with cooling liners. Adjacent lining sheets are arranged to overlap at the hinges so as to contact one another on movement of the panels or abut one another when the movable panels are spaced apart.
Patent GB-915781-A (GB)
Title: Improvements in or relating to electronic digital computers
Inventor: ORD GEOFFREY
IPC: F16B19/10
Filed: 1959-02-09
Abstract: 915,781. Digital electric calculating. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 2, 1960 [Feb. 9, 1959], No. 4416/59. Class 106 (1). A sequencer for sub-programmes (micro-programmes), i.e. programmes necessary for the performance of single instructions such as " add," comprises a ring or pulse separator 3 producing outputs successively at the points 25, means 7 for clearing the stage producing an output at any given time and means 5, 6 for restarting the ring at a selected stage, means 8 for switching the outputs into one of a number of groups of output channels, each channel of the group being connected either to the arithmetic unit of the computer or to the clearing and restarting means. In operation, a signal from the computer at a selected terminal 9 operates a sub-programme switch 8 which connects one group ot terminals 12 to the outputs 25 of the separator 3, and is also applied to the first set and clear circuit 5 to operate circuit 7 which clears the active stage of the separator, and to operate a delayed set circuit 6 which restarts the separator at the first stage. The terminals 12 may be connected to terminals 15 to provide inputs to arithmetical gates of the arithmetic unit 13 or to the X-inputs of later set and clear circuits 5 to cause a jump. A jump to a different sub-programme is obtained by connecting a terminal 12 both to the X-input of the required set and clear circuit and to the terminal 9A of the switch 8 initiating the required new subprogramme. A jump conditional on the result of the arithmetical operation is obtained by connecting an output terminal 17 of the arithmetic unit to a conditional jump circuit 19 which controls a switch 20. The appropriate terminal 12 is connected to terminal 21 and the terminals 22, 23 connected to the appropriate set and clear circuits and if necessary subprogramme switch terminal 9A. If a particular arithmetic operation takes longer than the interval between pulses from source 1 a terminal 17 is connected to a pulse suppressor unit 2, so that pulses only issue to the separator 3 when the operation is completed. If a sub-programme does not use all the terminals 12 of a group, a sub-programme signal path 9B is connected to the Z-input of the set and clear circuit subsequent to the last stage of the short subprogramme and the last terminal 12 is connected to terminal 7A to clear the short sub-programme.
Patent GB-390925-A (GB)
Title: Improvements in magnetic cores for inductances
IPC: H01F1/24
Filed: 1932-02-15
Abstract: A comminuted chromium-aluminium alloy containing 10 to 50 per cent aluminium is used along with a filler for the powdered cover of inductance coils.  Specification 363,697, [Group XXXVI], is referred to.
Patent GB-585515-A (GB)
Title: Case for a portable sewing machine
IPC: D05B77/00
Filed: 1945-02-22
Abstract: 585,515. Sewing-machine cases. LINIGER, M. Feb. 22, 1945, No. 4478. [Class 52 (i)] The side members c, d of a sewing-machine case are hinged to a base member a and can unfold to lie in alignment therewith, in which position they can be utilized to support loose leaves x, y, z to form a work table, the machine having been removed from the base member a and housed in the side member c, which has a hinged flap g to receive the baseplate of the machine.
Patent GB-341304-A (GB)
Title: New or improved cooling device for a grinding machine
IPC: B24B55/02
Filed: 1930-02-10
Abstract: 341,304. Grinding. AUST, E., 83, Annenstrasse, Witten, Ruhr, Germany. Feb. 10, 1930, No. 4497. [Class 60.] Supplying fluids.-In a grinding - machine having an annular grinding disc g surrounded by a work-table, cooling medium is supplied from a hollow member b, situated within the disc, through channels f. The medium is supplied through a passage c<1> from a conduit a and the used medium is led from a gutter h to a storage vessel or pump k.
Patent GB-657388-A (GB)
Title: Improvements in or relating to door closing devices
IPC: E05F1/10
Filed: 1949-02-21
Abstract: 657,388. Door operating appliances. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 21, 1949, No. 4692. Convention date, March 10, 1948. [Class 65(i)] A closing device for the hinged door 24 of a refrigerator cabinet 10 comprises a link 30 (Fig. 5), pivotally connected at one end to the door, and a tension spring 40 connected at its respective ends to the link and the cabinet. The arrangement is such that up to a predetermined angle of opening the door, 90 degrees as shown, the door is biassed to return to its closed position, while at said position the closing device is rendered inoperative, the link and spring then occupying a dead centre position. If moved beyond said position the door tends to return thereto, a fixed stop 46 adapted to abut the link substantially at said position being provided to effect this result. In a modification (Fig. 9), a curved link 56 is interposed between a straight link 58 and the spring. The length of the straight link is equal to the perpendicular distance between the connection of the latter to the door and the hinge axis. When the door opens 90 degrees the point of connection between the links thus coincides with the hinge axis to render the closing device inoperative. The link 58 then abuts a stop 60 on the door to permit further free movement of the latter beyond this position. In further modifications the stop 46 is provided on the door, and the stop 60 on the cabinet to engage the link 56.
Patent GB-159756-A (GB)
Title: Improvements in the arrangement of paper pressing rollers in typewriters
IPC: B41J13/036
Filed: 1920-02-16
Abstract: 159,756. Baeseler, H. Feb. 16, 1920. Sheet-feeding arrangements.- The front and rear feedrollers 10, 19 are carried by shafts 9, 24 mounted in arms 8, 18 loose on shafts 7, 17, and springs 20 for maintaining the feed-rollers in operative position are attached between the arms 8 of the front rollers and arms 25. These are loose on the shaft 17 of the rear rollers, and have - screw abutments 27 for engagement with lugs 28 on the arms 18, the abutments 27 being adjustable for regulating the spring tension. The release movement of the feed-rollers is effected by means of collars 12 adjustably secured on the front shaft 7 and provided with lugs 14, 16 for engagement with pins 15 on the arms 8 and lugs 21 on the arms 18. The shaft 7 is rocked for the release movement by means of a hand-lever 29 depressible into contact with an offset end 35 of an arm 36 at the end of the shaft. For locking the feed-rollers in the released position, a pivoted stop 33 is connected by means of a pin 31 and a slot 32 with the handlever 29 so that it is swung down behind the part 35 when the hand-lever is depressed, and then can be engaged by the part 35 under the action of the springs 20 by a slight rearward movement of the hand-lever, permitted by play of the pin in the slot.
Patent GB-697216-A (GB)
Title: Improvements relating to convertible sofa-beds
IPC: A47C17/16
Filed: 1952-02-22
Abstract: 697,216. Bed-settees. LEVY, A. Feb. 22, 1952, No. 4725/52. Class 52(ii) A bed-settee of the kind comprising two pivoted mattresses one of which is provided at each end with a fixed panel the panels serving as arm rests in the settee position and as head and foot boards in the bed position is provided with a further panel g pivoted to each fixed panel f to support the mattress b in the settee position when the pivoted panel g is turned inwards but to be arranged in alignment with the fixed panel f in the bed position. The mattress b is supported in its back rest position by the point l of the panel g near its hinge h so that no bolt or other fastening is needed. The pivoted mattresses a, b are provided with further mattresses or cushions o, p and to hide the front of the mattresses in settee position the cover of the mattress b is prolonged and stitched to. the mattress p, a valance covering the front of the mattresses being stitched to such cover. The hinge connecting mattresses a, b may comprise a straight hinge plate and an angled one so that such spacing between the mattresses when in bed position and such height of the back rest may be obtained as is desired.
Patent GB-1026844-A (GB)
Title: Improvements relating to thin-walled workpieces of soft material and having nuts fitted therein
IPC: F16B37/06
Filed: 1963-02-06
Abstract: 1,026,844. Securing nuts to work. ROBERT BOSCH G.m.b.H. Feb. 6, 1963 [Feb. 23, 1962], No. 4765/63. Heading F2H. A square or hexagonal nut 11, e.g. of steel, is pressed into a bore in a workpiece 10 of soft material such as aluminium so that its corners pare out lugs 20 against which the corners are pulled when a screw is inserted from the side adjacent the lugs and tightened. The aluminium workpiece 10 may be a distributer housing with nuts pressed from its inside into bores to receive screws for fixing a timing regulator on the outside. The bore diameter equals the width of the spanner corresponding to the nut used.
Patent GB-806876-A (GB)
Title: Improvements in and relating to disposable hypodermic injection devices
Inventor: STEPHENSON DOUGLAS
IPC: A61M5/28
Filed: 1956-02-16
Abstract: In order to avoid the contents of a polythene ampoule drying out when this contains a water-soluble medicament, the medicament is dissolved in a mixture of one or both of propylene glycol and glycerine with water.  The proportion of water is adjusted to suit the average external conditions of temperature and humidity. Suitable analgesics for this purpose are methadone, iso-anidone, dipipanone, pethidine and morpholinylethylnorpethidine.
Patent GB-1104692-A (GB)
Title: Improvements in and relating to disinfectant compositions
Inventor: PEACOCK WILLIAM LINDSAY
IPC: A01N31/08
Filed: 1964-02-05
Abstract: A detergent composition having disinfectant activity comprises monochlor- or monobrom-ortho-phenyl-phenol and a synthetic surface active agent comprising an alkylolamide, an alkyl aryl sulphonate, a secondary alkyl sulphate or an alkyl aryl sulphonate with an alkyl sulphate or ethoxylate or with an alkyl phenoxy ethylene glycol, or a mixture thereof.  The synthetic surface active agent may constitute an ingredient of a detergent base for the composition.  The detergent base may comprise (a) the synthetic surface active agent together with a viscosity regulator such as xylene or toluene sulphonate, urea or NaCl; (b) as in (a) together with inorganic salts as builders; or (c) the synthetic surface active agent and pine oil, a terpene hydrocarbon or an essential oil with or without an alcohol e.g. ethyl or isopropyl alcohol. The amount of monochlor- or mono-brom-ortho-phenyl-pheno may be 1-10% in the case of (a) and (b) and 0.5 to 5% in the case of (c).ALSO:A disinfectant composition comprises monochlor- or monobromortho-phenyl-phenol and a synthetic surface active agent comprising an alkylolamide, an alkyl aryl sulphonate, a secondary alkyl sulphate or an alkyl aryl sulphonate with an alkyl sulphate or ethoxylate or with an alkyl phenoxy ethylene glycol, or a mixture thereof.  The synthetic surface active agent may constitute an ingredient of a detergent base for the composition. The detergent base may comprise (a) the synthetic surface active agent together with a viscosity regulator such as xylene or toluene sulphonate, urea or NaCl; (b) as in (a) together with inorganic salts as builders; or (c) the synthetic surface active agent and pine oil, a terpene hydrocarbon or an essential oil with or without an alcohol, e.g. ethyl or isopropyl alcohol.  The amount of monochlor- or monobromortho-phenyl-phenol in the disinfectant composition may be 1-10% in the case of (a) and (b) and 0.5-5% in the case of (c).
Patent GB-397176-A (GB)
Title: Improvements in sliding clasp fasteners
IPC: A44B19/18
Filed: 1932-02-19
Abstract: 397,176. Sliding-clasp fastenings. CORNER, G. H. C., 507, Walsall Road, Perry Barr, and LIGHTNING FASTENERS, Ltd., Witton, both in Birming- ham. Feb. 19, 1932, No. 4943. [Class 44.] A fastener of the type in which a number of sliding-clasp members 2, fixed at intervals on a tape 3, engage the beaded edges of two stringer members has these edges formed by a smooth hard flexible cable 1 of small crosssection which is sewn to the stringer by loops 4 formed integrally on the cable. The clasp parts 6 accurately fit the cable ] which may be of artificial gut or metal.
Patent GB-1076506-A (GB)
Title: Improvements in or relating to clamping devices
Inventor: HOFFMEISTER ERICH
IPC: A61C1/14
Filed: 1966-02-04
Abstract: 1,076,506. Dental handpieces. KALTENBACH & VOIGT. Feb. 4, 1966 [March 23, 1965], No. 4990/66. Heading A5R. A clamping device for holding a rotary tool in the drive bore or bush of a dental handpiece comprises at least two flexural springs, for example leaf springs, located at equal intervals about the axis of the bore or bush and arranged to be resiliantly yieldable radially of the axis. The central portion of each spring may be arcuate and inwardly curved towards the drive bore or bush axis, the axially opposite ends of each spring being held radially relative to this axis and being angled relative to the arcuate central portion so that they are parallel to or coplanar with each other. Figure 1 illustrates the device applied to a handpiece having a toothed gear drive. At the forward end of handpiece neck 1 is head housing 2 which is closed at one end by cover 3 and inside which driving sleeve 4 and flanged sleeve 5 are mounted by means of ball bearings 6 and 7, the bearings being separated by spacer sleeve 16 which has a nose 17 engaging in groove 18 of the head housing to prevent rotation of the spacer sleeve relative to the head housing. Bearing sleeve 8 is fixed at one end to the driving sleeve and to tool guide sleeve 10, in which the shank of a tool (not shown), for example a burr, may be inserted, and at its other end seats with a sliding fit in the flanged sleeve and about tool guide sleeve 9. The tool guide sleeves are provided with annular recesses 11 and 12 into which are inserted end portions 15 of flexural springs 13 (only one of which is shown). The end portions of each spring are wider than the arcuate central portion so that end portions of adjacent springs abut laterally to set the central portions at equal intervals about the tool bore axis. Each spring preferably has an arcuate cross-section in at least that region which is to grip the tool shank, the radius of curvature of the inner face of this region corresponding to the tool shank radius. The device may also be applied to handpieces driven by a fluid-operated turbine, Fig. 3 (not shown), or by belt and pulleys.
Patent GB-143962-A (GB)
Title: Improvements in the manufacture of articles from sheet metal
IPC: B21D31/04
Filed: 1919-02-28
Abstract: 143,962. Walker, F. P. Feb. 28, 1919. Boxes of skeleton formation. - A sheet-metal receptacle is formed with expanded-metal sides and with a corrugated upper edge. It may be circular or polygonal, or both, in plan, and may have either plane or curved sides. Sheets of metal of the desired shape are formed with staggered rows or rings of interrupted slits b, b<1> - -b<4> and then expanded. The unslitted edge c is corrugated prior to expanding. According to the Provisional Specification, the article may be, used as a core or reinforcement for concrete, plaster, &c., and the unslitted portions may be stretched instead of corrugated. It may also be made from a tubular blank. It is also stated that the slitting and expanding may be performed simultaneously.
Patent GB-956849-A (GB)
Title: Improvements in or relating to calendering machines
IPC: B29C43/22
Filed: 1961-02-11
Abstract: 956,849. Calendering machines. E. K. COLE Ltd., and A. H. JOHNSTON. Feb. 8, 1962 [Feb. 11, 1961], No. 5170/61. Heading B5A. A probe 3, of softer material than the rollers, extends between the rollers 1 and 2 of a calendering machine so that when the rollers close below a predetermined limit the probe is caught between them and operates a protective device, e.g. a micro-switch 6 which acts to stop the drive or the screw-down motor.
Patent GB-845298-A (GB)
Title: Improvements in or relating to hoppers
IPC: B65D90/60
Filed: 1957-02-15
Abstract: 845,298. Hoppers. CRAIG, J. L. April 30, 1958 [Feb. 15, 1957], No. 5199/57. Class 78 (1). Hopper 1 is provided with inlet 2 and outlet 3 which are simultaneously controlled by arcuate sliding lid 4. The operative fills the hopper with the lid in the position shown as closing the outlet, and then swings the lid by means of the handle 5 to discharge the material through the now-open outlet whilst simultaneously closing the inlet. Part 6 of the hopper is pivoted thereto and secured in place by wing- nuts 9.
Patent GB-320909-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N5/225
Filed: 1928-04-25
Abstract: 320,909. Baird, J. L., and Television, Ltd. April 25, 1928. Divided on 320,639. Television.-A television receiver and a gramophone 50 are geared to a single motor 14 through separate clutches 16, 24 so that either or both may be driven. The clutch 16 drives an exploring disc 8 adjacent to a lightsource 6 electrically connected to the television apparatus, and the clutch 24 controls the gramophone gearing. An electric pick-up device 66 is added to the gramophone. The sight record or sight-and-sound record described in Specification 289,104 may be used on the turntable 48, the record picture being reproduced by the disc 8 and light-source 6, and the modulated current from the pick-up device being amplified in transit by the amplifier 2.
Patent GB-233087-A (GB)
Title: Improvements in and relating to floors
IPC: E04B5/40
Filed: 1924-02-29
Abstract: 233,087. Mackenzie, K. D., and Mackinnon, J. P. Feb. 29, 1924. Metal floors.-Longitudinal sheet-metal members a of ridged, arched, or curved cross section and with the parallel sides b turned inwards to form Banges c are placed' close together on supporting girders d' and are secured together and to the girders by bolts or studs. Concrete or other flooring composition g is spread over the upper surface and may be divided into sections by means of greased paper in the joints to facilitate taking-up and relaying. The floor may be formed in sections each comprising a number of members a secured together and covered with plastic material. Roofs may be similarly formed.
Patent GB-1249777-A (GB)
Title: Electrically insulating housings and their formation
Inventor: WISE JOSEPH AGUSTA
IPC: B29C43/18
Filed: 1970-02-04
Abstract: 1,249,777. Forming insulating housings. AMP Inc. 4 Feb., 1970 [19 Feb., 1969], No. 5317/70. Heading B5A. Electrically insulating housings are formed about tubular elements, e.g. metal sleeves 8, by successively locating thermoplastic blanks 11 supported on a carrier strip 12 between spaced mating forming dies 1, 2, one of which 1 supports the tubular element 8, and closing the dies to cold form the blank 11 into the housing 14. The die part 1 may have cylindrical portions 3, 5 of different diameter and joined by conical portion 4, portion 5 having a flange 6 to support the flared end of metal sleeve 8 which is engaged and retained in the material of housing 14.
Patent GB-588869-A (GB)
Title: Improvements in electromagnetic vibratory interrupters
IPC: H02M3/42
Filed: 1945-03-03
Abstract: 588,869. Converting. PLESSEY CO., Ltd. March 3, 1945, No. 5344. Convention date, March 18, 1944. [Class 38 (ii)] [Also in Group XXXVII] In a system for energizing alternately the two halves of a transformer primary 51 and then delivering rectified current from the secondary 53 to a circuit 55 through " rectifier " contacts 28, 30, a vibratory reed 21 carries two armatures 38 arranged between two electromagnets 15 which are alternately shortcircuited at contacts 27, 29 so that the reed is maintained in vibration. The slight asymmetry that will always exist is sufficient to set the device in motion, one pole 11 having a slightly greater effect than the other which increases with deflection. The contacts 28, 30 are arranged behind the contacts 27, 29, Fig. 1, and are engaged slightly later, the reed twisting slightly in the process.