baber/WOPTO huggingface dataset:
Patent GB-702031-A (GB)
Title: An improved gas burner
IPC: F23D14/00
Filed: 1948-06-25
Abstract: 702,031. Regulating fluid flow. REICH, O., and VIGNATI, J. June 25, 1948 [July 14, 1947], No. 17155/48. Class 135. [Also in Group XI] A throttling chamber for controlling the flow of compressed or condensed gaseous fuel from a supply source to a gas burner has two of its walls spaced a small distance apart to form a fissure-like fuel throttling passage, which passage either lies in a direction transverse to the general direction of flow and through which passage the fuel flows radially with respect to the general direction of flow, or the spacing of the walls is effected by rigid spacers, Surfaces 12, 12', Fig. 1, of the throttling passages 11 are spaced a fixed distance apart from an intervening disc 14 by means of spacer elements 13, such as lugs, Fig. 2 (not shown) formed on the latter. As shown in Fig. 4 the throttling passages 31 may be formed between spherical surfaces 26, 27 held apart by spacer elements 28 formed thereon or between the walls 37 of a passage 34, located by spacer elements 38 formed on the walls. The throttling passages, Fig. 3 (not shown) may be formed between the ground surfaces and an apertured intervening disc held apart by annular spacer elements. In a modification, Fig. 5, the throttling passages 47, 48 are formed on the ground surfaces of a disc 43 by an etching process or alternatively by etching the surfaces of walls 44, 45. All the surfaces may be etched to form throttling passages of twice the normal width.
Patent GB-127486-A (GB)
Title: Improvements relating to Countersinking, Drilling and like Machines.
Inventor: GURMIN ERNEST WILLIS
IPC: B23B51/10
Filed: 1918-10-21
Abstract: 127,486. Gurmin, E. W. Oct. 21, 1918. Drills.-A depth-gauge for a drill, countersink, &c. comprises a tubular member f surrounding the drill b and rotatably attached, preferably adjustably as shown at g, to the end of a drill-spindle a, so that the member f ceases to rotate when in contact with the work. Preferably, a ball-bearing e is provided to take the thrust between the spindle a and the sleeve c. Slots h to facilitate the supply of lubricant may be provided.
Patent GB-674564-A (GB)
Title: Improvements in or relating to metal casement window frames
IPC: E06B7/23
Filed: 1950-07-10
Abstract: 674,564. Windows. KAETHER, W. July 10, 1950, No. 17211/50. Class 20(iii). Metal strip sections 3 of a casement window are folded over on the side facing the fixed frame 4 to stiffen the sections and accommodate a packing strip 6 housed in a removable channel member. The walls of the fold are pressed together at spaced points to secure the channel. A web 8 on the strip bearing on the section ensures that the free edge 6a bears against the frame 4. The narrow space between the fold and the frame limits air circulation in the vicinity of the packing strip thus checking condensation and adhesion of the strip by ice formation.
Patent GB-291972-A (GB)
Title: An improved apparatus for trimming or cutting wallpapers or the like
IPC: B44C7/02
Filed: 1927-06-29
Abstract: 291,972. Lowes, C. June 29, 1927. Stationary - cutter machines.-For trimming wallpaper to a tapered edge, the web is passed through freely-mounted angled rollers 28, 29 and the deflected edge is cut by a disc blade 6. The blade 6 is driven from a handwheel which is geared to a palling roller. The edge of the web is guided by a gauge and the trimming is deflected by a plate.
Patent GB-832213-A (GB)
Title: Improvements in or relating to high voltage power supplies including transistor oscillators
IPC: H02M3/338
Filed: 1956-06-05
Abstract: 832,213. Converting. UNIVERSAL TRANSISTOR PRODUCTS CORPORATION. June 5, 1956 [June 29, 1955; Dec. 5, 1955], No. 17391/56. Class 38 (2). High voltage direct current for portable Geiger Muller and scintillation counters, oscilloscopes, ionization chambers and photomultipliers is derived from a low-voltage battery by rectifying the stepped-up voltage of a transistor oscillator. In Fig. 1 a P.N.P. junction or point contact transistor 10 is connected to operate as a blocking oscillator with grounded emitter, to supply pulses at 300-1200 c./sec. to the primary winding 15 of low leakage transformer 14 with a non-saturable core. Output pulses from secondary winding 16 are rectified by a germanium or selenium diode 23 and smoothed by R.C. network 24, 25, 26. Feedback from tertiary winding 17 acts to enhance the current flow through winding 15 from battery 19 until bias of capacitor 20 acts to reduce it. The output voltage is controlled by variable resistor 21. Grounded base and grounded oscillators may be used (Figs. 6, 7, not shown). Before rectification the output may be amplified by two transistors acting in push-pull (Fig. 8, not shown), and the power developed may be enhanced by having two or more parallel connected transistors in the oscillator (Fig. 8, not shown). The output voltage may be rectified in a ladder-type voltage multiplier (Fig. 9, not shown).
Patent GB-385972-A (GB)
Title: Improvements in battery chargers and the like
IPC: H02M7/10
Filed: 1931-06-16
Abstract: 385,972. Rectifying alternating current. CURTIS, W. H., 278, New Cross Road, London. June 16, 1931, No. 17407. [Class 38 (ii).] Static contact rectifiers, arrangements of.-In apparatus for effecting rectification of alternating currents, two or more transformer windings are joined to points on a tapped rectifier and rectified current is taken from tapping points along the rectifier and the windings. As shown, the secondary windings A, B, H of a transformer are joined to points on the rectifier C, preferably of the metal oxide type, supply or grid biasing the radio circuits, and D, E, F, G serve as output points, e.g. for plate. Condensers may be used in shunt with the rectified output in order to obtain a steady direct current. A two-way switch may be used to bring two tapped rectifiers either into parallel co-operation, or into series for loading purposes in accordance with the rectification as above.
Patent GB-546457-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F1/12
Filed: 1940-12-09
Abstract: 546,457. Plate and tubular heat-exchangers. NEWCOMBE, C. K. Dec. 9, 1940, No. 17476. (Class 64 (iii)] Plates or tubes in a heat-exchanger are provided with heat-conducting riveted studs 16 which are of polygonal cross-section and may be twisted to form helical faces and have pointed ends. Specification 544,257, [Group XXII], is referred to.
Patent GB-703687-A (GB)
Title: Substituted benzyl pyridinium halides
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D213/20
Filed: 1950-07-12
Abstract: The invention comprises compounds having the general formula <FORM:0703687/IV(b)/1> in which X is a halogen atom, Y is a halogen atom or an alkyl group and may represent one or more such groups and R is a hydrogen atom or a carboxylic acyl group.  Compounds of the above formula where R represents hydrogen are obtained by reacting a compound of the formula <FORM:0703687/IV(b)/2> in which Ac is a carboxylic acyl group with pyridine or a homologue thereof in the presence of water.  Compounds in which R represents a carboxylic acyl group are obtained by a similar reaction in the absence of water, or by acylation of the free hydroxy compounds obtained by the first method.  The pyridine base may be pyridine itself or a mono or polyalkyl pyridine.  The acyloxy group may be an acetoxy-, propionoxy-, butyroxy- or pentanoxy group or may be derived from a higher fatty acid.  The nitroacyloxybenzyl halide employed is preferably the bromide.  It may be prepared by refluxing 4-nitro-2-acetoxy-toluene or an isomer thereof with preferably 3 to 6 equivalents of bromine in a solvent, e.g. tetrachlorethane of higher boiling point than carbon tetrachloride in the presence of light or a catalyst, e.g. iodine. Alternativel an N-halogen amide or imide in slight excess may be used as halogenating agent, with a catalyst, e.g. benzoyl peroxide.  The crude material obtained may be employed in the process of the invention.  In examples (1) to (6) pyridine is refluxed in 95 per cent. ethyl alcohol with 4-nitro-2-acetoxy-benzyl bromide to give 4-nitro-2-hydroxy-benzylpyridinium bromide; (7) 4-nitro-2-acetoxybenzylpyridinium bromide is produced by reacting 4-nitro-2-acetoxy-benzyl bromide and pyridine in dry tetrachlorethane; (8) 4-nitro-2-hydroxy benzyl pyridinium bromide is heated with acetic anhydride to give 4-nitro-2-acetoxy benzyl pyridinium bromide.
Patent GB-421579-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24H3/00
Filed: 1933-06-20
Abstract: 421,579. Hinges. COLLINS, G. H., and COLLINS, H. F., Premier Works, Keeley Street, Birmingham. June 20, 1933, No. 17498. [Class 65 (ii)] [See also Group XI] Frames 5, 9 of an electric fire are connected by hinges, preferably spring-closed and comprising four leaves hinged together with three vertical pins 13, the outermost leaves 14 being attached to the frames. The hinge, preferably formed by riveting three simple hinges together, allows adjustment of the front frame 9, which is locked in position by a screw or pin engaging the rear frame 5, and by an ear 16 engaging under an upwardly-turned strip 17 on the back frame 5. The front frame 9 carries heating elements 10 and the rear frame 5 is engaged in a fireplace or wall recess by screws 7 spaced along the sides and pressing against the walls.
Patent GB-118753-A (GB)
Title: Motor Power Plant.
Inventor: SELOUS WILLIAM JAMES
IPC: F01C1/44
Filed: 1917-11-28
Abstract: 118,753. Selous, W. J. Nov. 28. 1917. Self-driving machines.-A rotary core 15 bearing hinged vanes 12 is contained by an eccentric cylindrical chamber 11 having ports which are connected by a pipe 13 with a branch 14. An attached cylinder 7 communicating by a port 10 contains an inner cylinder 5 forming therewith an annular chamber divided by vanes 8. Specification 12745/15 is referred to.
Patent GB-153936-A (GB)
Title: Improvements in and relating to service cabinets
IPC: A47G29/14
Filed: 1919-07-14
Abstract: 153,936. White, A. E., (Servidor Co.). July 14, 1919. Valves and valve apparatus, actuating.-Service cabinets supported in doors or walls, for use in hotels &c., as means through which supplies may be passed without violation of the privacy of the room, are adapted to serve as ventilating-means, which may be controlled by hand or automatically in case of fire. The cabinet comprises side members 7, 8, Fig. 3, and top and bottom members 10, 11, Fig. 4, tu form ventilating-passages which may be closed by dampers 22, 23, provided with cushioning- means. The dampers are operated by links 29, 29<1> connected to a rocking shaft 35, which is operated by pushbuttons 42, Fig. 6, disposed in the frame of the main door. In case of fire, the solder uniting a plate 50, Fig. 5. with a plate 51 melts and allows the plate 51 to be drawn upwards by a spring 59, thereby raising the top damper by means of a pin 60, and lowering the bottom damper through the links 29, 29'. The damper 22, is slotted to prevent fouling by the automatic device when it is operated manually. The plate 50 is detachably secured to a bracket 49 and spare units comprising plates 50, 51 soldered together may be provided to expedite replacement.
Patent GB-145562-A (GB)
Title: Improvements in or relating to pneumatic hammers
IPC: B25D9/14
Filed: 1920-06-29
Abstract: 145,562. Bailly, A. Feb. 14, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Percussive hand tools; loose tools and bits, retaining.-In a pneumatic hammer, fluid from an inlet f acts constantly on the annular area d and moves the piston c to the right, some of the fluid then passing through port h to act on area l and move the piston to the left; this fluid, after acting expansively, is exhausted when a tube m is uncovered by the piston. In a modification, the tube m is extended and exhaust effected through lateral ports' therein. The tool e is retained in the cylinder by a cap A held to the latter by bayonet-joints and pressed by a spring F. The tool co-operates with a ported ring s controlling ports w in the cylinder; during normal working, the space r communicates freely with the atmosphere, but when the tool is not pressed against the work, the ring s closes ports w and cushioning occurs in spaces r and g.
Patent GB-1525784-A (GB)
Title: Removal of iron from mixed oxide materials
IPC: C21B15/00
Filed: 1976-04-30
Abstract: 1525784 Reducing iron ore ICI AUSTRALIA Ltd 30 April 1976 [7 May 1975] 17689/76 Heading C7D Oxidic ores containing both iron and non-ferrous metals are heated with solid carbonaceous reducing agent in a molten salt bath at 750-1300‹C. The bath contains at least one chloride of an alkali or alkaline earth metal and the process is carried out in the presence of hydrogen chloride. The process may be used for beneficiation of ilmenite, bauxite, low-grade manganese ore, chromium ore concentrate or slags containing mobium, tantalum or vanadium.
Patent GB-568656-A (GB)
Title: Improvements in or relating to indicating means for use in observing the flight of projectiles
IPC: G04F3/06
Filed: 1939-06-16
Abstract: 568,656. Time-alarm signals. REYROLLE & CO., Ltd., A., and STEVENSON, W. M. June 16, 1939, No. 17705. [Class 118 (ii)] Relates to apparatus for giving an indication, after a predetermined time from the release of a projectile or torpedo, that the projectile is about to reach a target. According to the invention, apparatus of this kind comprises electric contacts operated by the release of the projectile, two or more timing devices, each set in motion by the operation of the contacts to give an indication after a predetermined timeinterval, and a change-over relay also controlled by the contacts and serving to connect the contacts to the, different timing devices in succession. The apparatus comprises a source of electricity such as a battery A, Fig. 1, a number of pairs of contacts B, each situated on or near one gun and momentarily closed by the recoil or blast, a number of timing devices C, and a selector relay K for bringing the timing devices into operation successively. Each timing device is provided with instantaneous contacts D for closing the circuit of one or more lamps E to indicate when a projectile is in flight, and delayed contacts F for closing the circuit of one or more lamps G and buzzers H after a prodetermined time-interval. The relay comprises a selector switch rotated step-by-step by a ratchet-and-pawl which is operated by a solenoid and a spring, a mechanical time-lag device being used to delay the movement of the switch from one contact to the next until a predetermined time after the relay has been released. The timing device consists of a solenoid C, Fig. 3, which when energized pulls down an armature C<1> until further movement is prevented by an adjustable stop M. The initial part of the movement allows a pair of instantaneous contacts D to close and, almost simultaneously, opens a pair of delayed contacts F, the whole of the movement being substantially instantaneous. The armature C<1> is connected through a freewheel clutch with an eddy current disc C<2> provided with a permanent magnet brake C<3>, so that the return movement of the armature under the action of a weight N or a spring R takes place relatively slowly. Thus when the solenoid C is de-energized, the armature C<1> moves slowly upwards, and after a period deter. mined by the position of the stop M it closes the delayed contacts and, after a further fixed period, opens the contacts D to extinguish the lamps E, G. The adjustment of the stop M, for determining the interval of all the timing devices, is carried out by means of an adjusting member, such as a knob, associated with a scale graduated with the range of the gun. In addition, a scale is provided to enable the device to be set so that an " observe " signal is given at any desired time before the projectile reaches the target.
Patent GB-501820-A (GB)
Title: Improvements in or relating to opposed-piston wobble-or swashplate two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1937-09-02
Abstract: 501,820. Two - stroke engines; cylinders ; pumps. REDRUP, C. B. Sept. 2, 1937, No. 17706/38. Divided out of 501,807. [Class 7 (ii)] In an opposed-piston two-stroke swashplate engine in which each cylinder has inlet and exhaust ports 12, 13 at opposite ends, exhaust lead is effected by offsetting circumferentially the two parts of each cylinder as shown. The inlet ports are surrounded by an annular chamber 49, see Fig. 1 of Specification 501,807, supplied by a pump 53, geared to the main shaft, and the exhaust ports lead, through an annular chamber 50, and three pipes 56, to an exhaust pipe 57. Other engine details are described in the Specification referred to above.
Patent GB-545201-A (GB)
Title: A new or improved friction brake or clutch device permitting unidirectional relative motion
IPC: F16D41/066
Filed: 1940-12-16
Abstract: 545,201. Winch brake. CLARKE, R. E., and NEAL & CO., Ltd., R. H. Dec. 16, 1940, No. 17716. [Class 78 (v)] [Also in Group XXXIV] A friction brake or clutch device permitting uni-directional relative motion comprises a plate 24, keyed to the shaft 25 of a winch hoist &c., and formed with pairs of cam faces 26 on which run pairs of wheels 27, each pair serving to carry a brake shoe 15 frictionally engaging under the action of a spring 19 the inner surface of a brake drum 14, the shoes acting to lock shaft 25 against clockwise rotation when the drum 14 is restrained by braking means applied to its outer surface. Alternatively, the wheels 27 may be on the plate 24 and the cam faces 26 on the shoes.
Patent GB-1467777-A (GB)
Title: Shell-and-tube heat exchanger
IPC: F28F9/02
Filed: 1975-04-29
Abstract: 1467777 Shell and tube heat exchanger N I SAVIN T A TERNIKOVA V J FILIPPOV and V I SHIRYAEV 29 April 1975 17735/75 Heading F4S A heat exchanger comprises a shell 1, a hollow core 2, Fig. 1, and tubes 5 extending between spaced upper tube plates 3 and spaced lower tube plates 4, the tube plates being inclined relative to the axial direction of the heat exchanger. A first heat exchange agent passes through the intertubular space from an inlet 12 to an outlet 13 passing as indicated at 11, Fig. 2, through gaps between the inclined tube plates. A second heat exchange agent passes through the tubes 5 passing downwardly through the core 2 and then in sequence upwardly through pipes 8, collectors 6, tube plates 4, pipes 5 and parts 3, 9 and 14. The exchanger may be used in nuclear power plants wherein liquids or gases are used as heat transfer agents.
Patent GB-185558-A (GB)
Title: Marker for use in connection with knitting or crochet work
IPC: D04B3/00
Filed: 1921-06-30
Abstract: 185,558. Davidson, E. J. June 30, 1921. Crochet-work.-A device for use in connection with crochet work comprises a triangular card graduated in inches along the edges and carrying dials a, b, c, with manually set pointers f for scoring the number of stitches or lines of work completed.
Patent GB-425975-A (GB)
Title: Improvements in apparatus for the permanent waving of hair
IPC: A45D4/12
Filed: 1933-06-22
Abstract: 425,975. Hair - waving apparatus. BEAUVAIS, A., Rue Bouchardon, Paris. June 22, 1933, No. 17852. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 23, 1933]. [Class 131] In a hair-waving apparatus, the electric heaters are supported by an adjustable stand, and are connected to a current distributer. The apparatus may be arranged in a portable case 1, the current distributer being situated in the interior thereof beneath a false bottom 2, and comprising a pair of concentric metal bars supplied with current from a plug 5 and feeding heaters 15 in parallel through connectors 11 and leads 12. The leads 12 are supported in a collapsable stand comprising telescopic rods 24, 25 supporting a socket 30 carrying arms 29, 31 provided with hooks 32 for the leads. The stand may be supported in a socket 23 on the case 1, or may be adapted to be fixed to the floor, to a piece of furniture, or to the wall, e.g. by a " cupping device." When out of use, the rods 24, 25 are positioned beneath clamps 26, and the parts 30, 29, 31 are secured in the lid 27 by clamps 28. The false bottom 2 is provided with holes 2<a> to receive the heaters, when out of use, and bottles of lotion, and with compartments 18, 19 to receive the curlers, sockets, &c.
Patent GB-188023-A (GB)
Title: Device for cleaning felts on papermaking and similar machines
IPC: D21F1/32
Filed: 1921-07-01
Abstract: 188,023. Vickery, F. W. July 1, 1921. Moulds and wire cloths; felts.- In apparatus for cleaning porous transporting bands such as the felts and wires of paper machines and the like, applicable for transporting material of a semi-solid or macerated character, the cleansing medium is caused to impinge and act upon the moving band continuously or at short intervals in sections or portions one after the other of the full working width. Suitable reciprocating means comprise an augularly adjustable V-shaped beam 1, Fig. 1, on which is mounted a sliding cleaner member or members 2 containing a number of chambers having openings on the face at 5, 6, 7, 8 for water, steam, a brush, and suction respectively. Further additional ope additional brush and for air may b desired. The to-and-fro movement ber along the beam is effected by carrying a sprocket wheel 39, Fig. 7. Pawls 35, 36 are mounted on a rocking frame 32 rocked by a continuously rotating cam 30 working in a block 31 in the frame, and by engaging the teeth of the wheel 39 one of them rotates the screw 11. At the end of the travel of the member 2 a cam 26 thereon, engaging a cam 24 or a cam 25, turns the shaft 18 over the dead point of a spring 20 connected to a crank thereon, and the spring rotates the shaft 18 while an arm 22 fixed thereon, by means of a link 43 connected thereto and a sector 40 having a balance weight 42, tilts over the frame 32 to bring the other pawl into engagement with the sprocket wheel 39. The link 43 is connected to the arm 22 by a pin 44 engaging a slot which allows the shaft 18 to turn over the dead point. A crank handle may be provided on the screw 11 to enable the member 2 to be concentrated on any dirty spot in the transporting band. Any known reciprocating mechanism may be used to operate the sliding member 2. According to a modification, a number of sleeves d, Fig. 10, connected with a water supply, and having slots f in staggered relation or arranged on a spiral, are rotated intermittently or continuously within a tube a slotted at b throughout its length. Two such apparatus may be used one on each side of the transporting band, one supplying cleansing liquid and the other steam. According to one Provisional Specification the screw 11 may be provided with two pulleys driven by straight and crossed belts, tappet means on the member 2 operating the belt-shifting mechanism.