baber/WOPTO huggingface dataset:
Patent GB-444362-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/56
Filed: 1935-03-14
Abstract: 444,362. Thermionic valves. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 14, 1935, No. 7946. Convention date, March 17, 1934. [Class 39 (i)] In a vapour or gas filled discharge device having a control electrode 7 com pletely surrounding the discharge path betweer the equipotential cathode 6 and anode 8, two trans verse baffles 21 are placec within the electrode 7, the size and spacing of the holes in the baffles and the distance between the baffles being so arranged that the grid voltage necessary to restrain the arc from starting is practically independeni of the anode voltage over the operating range. The electrode may work either as a negatively or as a positively biassed control electrode. Only a single central hole may be made in each baffle or a number of holes are used in each, the two sets of holes being in register. The cathode may be of the kind described in Specification 309,447, [Class 39 (i)]. Specifications 406,017, 413,125, and 428,517 also are referred to. Reference has been directed by the Comptroller to Specification 428,517.
Patent GB-362279-A (GB)
IPC: H04R11/00
Filed: 1931-03-16
Abstract: 362,279. Loud-speakers. BREITENBORN, E., 36, Konradstrasse, Leipsic, Germany. March 16, 1931, No. 8069. Convention date, March 19, 1930. [Class 40 (iv).] Relates to a four pole electromagnetic driving unit for loud-speakers in which the polepieces are simultaneously adjustable by a double-threaded screw and consists in the provision of a spring acting on the pole shoes in order to prevent play. As shown, polepieces 3 carried by brass castings 6a, 6b are movably arranged in a frame 1 and slidably located between the ends of two horseshoe magnets 2 which are pressed together by a screw 12 and a spring located between their mid-points. A screw 7 passes through both the castings 6a, 6b, the screw having a right-handed thread where it passes through the casting 6a and a left-handed thread where it passes through the casting 6b, a bolt, rib or angular guide 11 also passing through the castings and being secured in the frame 1. A spiral spring 10 on the screw 7 bears against the castings in order to prevent play, a further spring 9 being provided between an extension 19 of the frame 1 and a collar 22 on screw 7, so as to keep the screw pressed against the ball bearing 20. An armature 4, which may be constructed as a tube and is surrounded by coils 5, is supported between the pole pieces by metal sheets or wires 17 secured to a frame 12a carried by the frame 1. One end of the armature is connected by a rod 14 to one end of a one-armed lever 15 which is mounted on the frame 1 and connected to a diaphragm 16. The rod 14 preferably consists of a U-shaped bent metal sheet filled with rubber or other resilient material.
Patent GB-213113-A (GB)
Title: Improvements in or relating to thermionic valves and the like
IPC: H01J19/66
Filed: 1923-03-21
Abstract: 213,113. Barber, W. E. March 21, 1923. Vacuum tubes. - A cap for a valve has plug or socket members the contact portions of which are arranged within or partly within the length of and outside the neck of the bulb. The bulb 2 is cemented into a cylindrical cap 1 having a flange 4 with bosses receiving plug contacts 6. The holder consists of a ring 20 of insulating material with cylindrical projections 21 containing sockets 22. The holder may be secured below a panel with the cylindrical parts extending into and with the top flush with the panel. The stems of the plugs are secured by nuts 9 covered by sealing material 10. Lugs 12 surrounding the stems are connected with leads from the electrodes, and are secured by flanges 13 on the stems. The cap may be detachable or arranged as an adapter. According to the Provisional Specification, the stems 6 are fixed by means of a cap 7 and springs 8.
Patent GB-1058605-A (GB)
Title: Improvements relating to conductive members soldered to metal surfaced insulating board wafers
IPC: B23K1/00
Filed: 1964-02-27
Abstract: 1,058,605. Inert switches. EASTMAN KODAK CO. Feb. 27, 1964 [Feb. 28, 1963], No. 8158/64. Heading H2B. [Also in Division B3] Two conductive members of a switch are assembled with an insulating board wafer having on each side a metal surface pretinned with solder so that there is no direct electrical contact between the members and the assembly is heated to melt the solder on the wafer. A switch comprises an operating lever (10), Fig. 1 (not shown), pivotally supported in a plate (12) of an earthed box (13) and carrying laterally extending wings (14), (15) having brushes (17) in contact with parallel guide members (18), (19), Fig. 2 (not shown), secured to the box, the brushes providing a path to earth. A brass contactor (28) for wiping contacts (24) coupled to electrical circuit components, one (26) being a battery and another (27) a lamp, is secured to the foot of the lever (10) by a double-sided insulating board wafer (30) soldered to the confactor and to the foot. The lever-contactor assembly is produced by tinning and fluxing both sides (33), (34) of a small portion of an insulating board having thin copper sheets bonded on each side, locating the lever (10) in an aperture (38), Fig. 3 (not shown), of a jig (36) having tapered slots (40) to accommodate the wings (14), (15) and brushes (17) and a square recess (42) to accommodate the foot (32) of the lever (10) and to locate the wafer, locating the wafer on the lever end and locating the contactor (28) in the jig over the lever and wafer in a recess (46). Soldering irons are placed in contact with the lever (10) and the contactor to activate the flux and melt the solder on the wafer and the assembly is allowed to cool in the jig. The assembly is tested by engaging the lever and contactor with probes connected to a high current source so that if shorting by solder exists the solder will be melted.
Patent GB-243960-A (GB)
Title: Improvements relating to the manufacture of envelopes, paper bags and the like
IPC: B31B19/00
Filed: 1925-03-26
Abstract: 243,960. Hugo, T. March 26, 1925. Paper bags, envelopes, and the like, making.-Relates to machines for making partially lined envelopes and envelopes with inspection openings covered with transparent blanks. In the form of machine shown in Figs. 1 and 2, arms 3a - - 3d, carrying suction nozzles 8<a> - - 8<d>, are mounted to rotate intermittently about a vertical shaft 1 and to be moved vertically downwards during the stops until contact is made by the arm 3<a> with the uppermost of a pile 4 of blanks which are to form the partial linings or transparent patches. At the same time, the arm 3<b> contacts with the uppermost blank of a pile 5 of envelope blanks, and the arm 3<c> is immediately over the surface of a folding box 6. During the descent, an air suction-tube 11<a>, Figs. 1 and 4, on the arm 3<a> and in connection with the suction nozzle 8a, contacts with a spring-mounted coupling member 12 in connection with an air pump 13. The uppermost blank is lifted from the remainder, a hook member 15, Fig. 18, meanwhile having been retracted by the action of a fixed standard 20 upon a tail piece 15b. Upon the arm 3<a> rising again a spring 16 urges the hook 15 to clamp the top blank against an abutment 17. A stripper 21 prevents more than one blank from being lifted. The arm then rotates through a right-angle and carries the lining into position over the pile 5 of envelope blanks. Strips of adhesive are applied to the upper faces of the blanks by a gummer 29, shown in Fig. 2 in the raised position, so that on the second descent of the arm 3a the patch or lining is applied to the outer blank. Gum is transferred from a trough 30 to the gummer 29 by a member 33, operated by a rod 36 to dip into the trough and to ascend into contact with the lower surface of the gummer. The gummer is mounted on a crosshead on guides 38 and is depressed by a lever 45. The closing flap of the outer blank is gummed by a member 53 on a guide block 54 reciprocated in a horizontal guide 55 and raised at intervals by a rod 63. The under flap has meanwhile been gummed by members 9a - - 9d with adhesive taken from a supply roll 10, Fig. 1, before the arm comes over the pile 4. After the application of the lining or patch to the outer blank, the next partial rotation of the arm 3a conveys the blanks to the folding box 6 and folding and further operations take place. The pile tables 65, 73 are movable in vertical guides by hand wheels 66, 70 attached to toothed wheels engaging with racks. In a modification, the suction nozzles are permanently disposed over the pile of blanks and are raised and lowered as required. In another form, the blanks may be arranged through the machine in a rectilinear path, or in two paths at right-angles, the suction devices being modified accordingly. Forms of blanks with the patches attached are shown in Figs. 23 and 23a.
Patent GB-495539-A (GB)
Title: Improvements in or relating to the production of elastic fabrics
IPC: D06M15/693
Filed: 1938-03-17
Abstract: 495,539. Elastic fabrics ; compound fabrics. SCHWARTZ, F. F., and CHAVANNES, M. A. March 17, 1938, No. 8212. Convention date, March 18, 1937. [Class 140] Elastic fabrics having a high extensibility in all directions are made by treating the fabric in unstretched condition with a liquid containing a wetting agent and a shrinking agent to diminish the size of the pores and then spraying with rubber latex in such a manner as to avoid sticking together the elements of the fabric. The fabric may be woven, knitted, braided, or plaited. The fabric may be embossed prior to spraying as described in Specification 482,679. Suitable shrinking agents are caustic soda, phosphoric acid and sodium sulphide. The wetting agent may be sodium tetramethylxanthate or a degraded albumin. After shrinking, excess alkali may be neutralized with hydrochloric acid. The fabric may be sprayed under the conditions described in Specifications 482,767 and 482,844. A compound fabric may be made by sticking together two or more fabrics, if desired with corresponding threads crossing. Specification 228,893, [Class 140], also is referred to.
Patent GB-208105-A (GB)
Title: Control device for the film gate in motion picture apparatus
IPC: G03B1/56
Filed: 1923-03-22
Abstract: 208,105. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres, (Assignees of Etablissements Continsouza). Dec. 11, 1922. [Convention date]. Kinematograph apparatus. -The gate and the door of the casing of the apparatus are operatively connected so that they may be closed and opened together. As shown in sectional elevation, the gate 1 is mounted on a pivot 2 and carries a pressure frame 3 urged towards a film guide 5 by a spring 11 bearing on a rod 12. The door has a vertical hinge, and carries an angle bracket 8 which, as the door is closed, engages a member 4 on the gate and causes the gate to close.
Patent GB-558086-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/64
Filed: 1942-06-16
Abstract: 558,086. Atmospheric gas burners. GREAVES, A. H., and SHORT, R. V. June 16, 1942, No. 8244. [Class 75 (i)] In the gas burner described in Specification 551,914 in which the gas orifice 1a of a conically ended jet 1 discharges into the enlarged lower end of a mixing tube 2 at a point immediately above the air inlet holes 3 the mixing tube 2 is formed with a cylindrical bore 5 discharging into a second mixing tube 8 adjustably threaded into a gallery 9 which is integral with the mixing tube 2 and is formed with air inlet holes 10. The upper end 6 of the tube 2 is conical and terminates below a venturi constriction 8a in the tube 8. The distance separating the upper edges of the holes 10 from the top of the tube 2 is preferably not less than the diameter of the constriction 8a. The upper end of the tube 8 may form the burner mouth or be connected to a separate burner or burners.
Patent GB-695592-A (GB)
Title: Improvements relating to beta-bromo-alpha-chloro-beta-formylacrylic acid and method of preparing same
IPC: C07C51/29
Filed: 1951-04-12
Abstract: b  - Bromo - a  - chloro - b  - formyl acrylic acid is prepared by reacting furfural with bromine and chlorine at elevated temperature in presence of water.  The following reaction-equation is given: <FORM:0695592/IV (b)/1> The compound may be reacted with sodium nitrate to form nitromalonaldehyde which reacts with guanidine to form 2-amino-5-nitro pyrimidine.  In examples: (1) a solution of bromine in aqueous hydrobromic acid is heated to 65 DEG  C. and part of the furfural slowly added whereafter the remainder of the furfural is added concurrently with a stream of chlorine and a slurry of the desired product results; (2) a mixture of bromine and sulphur dioxide is mixed with water and bromine added to the colourless solution formed and thereupon furfural and chlorine are added as in (1).  The bromo-chloro-formyl acrylic acid is stated to be useful in the treatment of black head disease in turkeys.
Patent GB-319184-A (GB)
Title: Improvements in book-rests
IPC: A47C7/68
Filed: 1929-03-15
Abstract: 319,184. Shaw, B. March 15, 1929. Book-holders.-A book rest of the kind in which a support, adapted to straddle the arms of a chair, is made in three portions a, b, c, is also made with a book slope e in two or more portions hinged together so that they may be folded up to occupy a space equivalent to that of the middle section of the three portions. The slope e is supported by a hinged strut g the lower end of which engages with grooves i in the section c. An additional member hinged to the strut g serves to maintain the slope e in a nearly vertical position. The parts a, b to receive a. tumbler k and an ash tray l, and have non-slipping rubber or other pads m. The ledge j has screwed-in leaf holders n.
Patent GB-268782-A (GB)
Title: Improvements in and relating to air compressors
IPC: F04B27/02
Filed: 1927-03-29
Abstract: 268,782. Pescara, R. P. April 2, 1926, [Convention date]. Pistons, heating and cooling.-The pistons of a directacting compressor may be hollow and partitioned, and cooled by water circulation. They are provided with water supply and discharge pipes 53, 54 having external rack teeth meshing with a pinion 57 by which the pistons are synchronized. The pipe 54 ends in a hollow piston 65 sliding in a cylinder by which water is supplied. The pipe 53 and the corresponding pipe (not shown) connected to the upper piston, are provided with valved outlets delivering the water through a pearshaped aperture 64 by which an increasing resistance is offered to the flow when the water rises to this level, tending to cushion the piston. The tubes pass through stuffing boxes in the cylinder heads, so that the piston may compress on both sides.
Patent GB-140787-A (GB)
Title: Tyre valve tools
IPC: B60C25/18
Filed: 1920-03-24
Abstract: 140,787. Schrader's Son, Inc., A., (Assignees of Kraft, H. P.). March 21, 1919, [Convention date]. Screwing-dies; taps. -Relates to tyre valve repair tools of the type described in Specification 123,529, and consists of improved contructions of the tyre deflating tool and screwdriver. The body portion A is formed with a die, and the handle portion B with a tap E, as described in the prior Specification.
Patent GB-657952-A (GB)
Title: Improvements in and relating to conducting liquid electric devices for performing switching operations in repeated succession
IPC: H01H29/00
Filed: 1949-03-31
Abstract: 657,952. Mercury and other conducting- liquid switches. MESTITZ, E. March 31, 1949, No. 8714. [Class 38(v)] A switch which repeatedly interrupts a circuit for flashing a lamp or for loadlimiting purposes, comprises a pair of gasfilled bulbs 1, 2 connected by a tube 3 containing conducting liquid, e.g. mercury. The bulb 1 houses a heating element 16 having an intermediary point connected to an electrode 17 and its ends connected through resistances 20, 21 (at least one being variable) and a conductor 27 to the supply side 11, the other side 12 of which is connected to an electrode 14. The liquid levels are normally at 22, 23 so that parallel circuits completed between the electrode 14 and electrodes 6, 17, respectively energize the lamp 8 and heater 16, whereby the gas in the bulb 1 expands and forces the liquid beyond the electrode 17 and the heater 16 is de-energized. The liquid level in the bulb 1 continues to fall due to the thermal capacity of its contents and when the level reaches 24 a dam 5 separates the liquid in tube 3 from that in the bulb extension 4 surrounding the electrode 6 and the lamp circuit is broken. The gas finally contracts causing reclosure of the lamp and heater circuits and repetition of the switching operation. In a modification the lamp 8 and heater 16 are arranged in series by connecting the conductor 27 to the supply side 12.
Patent GB-1161273-A (GB)
Title: A Photocopying Material
IPC: G03C1/58
Filed: 1968-02-22
Abstract: 1,161,273. Diazotype materials. RENKABELIPA G. rn. b. H. Feb.22, 1968 [Feb. 24, 1967], No.8775/68. Heading G2C. A two-component diazotype material comprises a support coated with a layer containing at least one diazonium compound, acid stabilizer and at least one coupler of formula wherein Y is -S- or -SO-, R1 and R2 are alkyl with 1 to 4 carbon atoms, X is hydrogen, or -CH2- NR3R4 in the position ortho to the hydroxyl group wherein R3 and R4 are alkyl or hydroxyalkyl groups with 1 to 4 carbon atoms or together form a heterocyclic ring. The support is generally transparent so that on exposure and development an intermediate master for photo-copying is produced.
Patent GB-576888-A (GB)
Title: Improvements in water-cooled gas condensers
IPC: B01D5/00
Filed: 1944-05-09
Abstract: 576,888. Gas condensers. POWER-GAS CORPORATION, Ltd., and RIXON, F. F. May 9, 1944, No. 8793. [Class 55 (ii)] A water-cooled gas condenser comprises vertical tubes 13 connecting top and bottom water chambers 3, 4, and encased within a shell 1 divided by one or more vertical baffle plates 2 into two or more gas passes having additional horizontal or slightly inclined baffles 14, the water chambers being subdivided by transverse plates 5, 6 and partitions 7-12 so as to provide for final cooling of a countercurrent flow of gas and water in one or more gas passes and for initial cooling a number of up and down water passes in the first or in each of the first and remaining gas passes. Hot gas enters by a bottom inlet 15 travelling across the tubes between the horizontal baffles and over baffle 2 when it descends to an outlet 16. Cooling water enters by an inlet 17 and rising to the top water chamber passes through an opening 25 in plate 5, thence downwardly to the bottom chamber following an up and down course within the final gas pass to an outlet 18. Clearances between the water tubes and baffles 14 allow condensed water and tar to collect at the base for removal through outlets 21, 22. The top water chamber may be open or have a cover and the bottom chamber may be detachable or have a detachable bottom plate. The condenser may be cylindrical divided into two equal gas passes, the water chambers being subdivided by partitions at an angle to the central division plates.
Patent GB-526558-A (GB)
Title: Improvements relating to christmas crackers
IPC: F42B4/22
Filed: 1939-03-20
Abstract: 526,558. Christmas crackers. BRIGG, J. E. March 20, 1939, Nos. 8841 and 20773. [Class 132 (i)] A snap for a cracker is provided with two or more detonators which are so arranged that the effect of the pull is, in the first place, communicated only to one of them, the second and any subsequent detonator being set off in succession by continued application of the pull. The detonators may be associated with strips a and b, the latter being formed with loops c, d, and e, the detonators lying between the loops and paper wrappings f, g, h, and i, being provided between the loops. When the strips are pulled the loops are pulled out in succession and their adjacent detonators are operated in succession. Alternatively the two strips are folded each into zig-zag form and alternate angles of the zig-zags are connected by ordinary snap elements.
Patent GB-723247-A (GB)
Title: Modified polysulphone resins
Inventor: CROUCH WILLIE WOODWARD
IPC: C08G75/22
Filed: 1952-04-08
Abstract: A modified heteropolymeric resin is produced by coagulating the mixed latices of (a) a resin of an unsaturated organic compound and sulphur dioxide, and (b) a polymer of a vinyl monomer having not more than 20 carbon atoms in the molecule.  The modifying latex may have a pH greater than 7 and the heteropolymeric latex a pH of less than 7 which is adjusted, e.g. by means of sodium hydroxide, to correspond to that of the modifier latex.  The heteropolymer may be prepared as described in Specification 686,446 and additional monomers specified are a -methyl and a -chloro-styrene.  Modifier monomers specified are acrylic and substituted acrylic acids, esters, amides and nitriles, methyl isopropenyl ketone, vinyl chloride, butadiene, isoprene, styrene and copolymers of butadiene with styrene, acrylonitrile or vinyl pyridine.  The mixed latices may be precipitated by the use of methanol and brine.
Patent GB-1441525-A (GB)
Title: Coating of bottles
IPC: B05B15/04
Filed: 1974-02-27
Abstract: 1441525 Coating apparatus MITSUI SHIPBUILDING & ENG CO Ltd 27 Feb 1974 [28 Feb 1973] 8976/74 Heading B2L The bases of suspended bottles 1 are masked when passing through a spray coating station by a belt 2 or other protective means, which is moved with the same speed and direction as the bottles. The belt 2 may 'be imperforate (Fig. 1), may have apertures 4 over which the bottles are placed and through which gas such as air is blown from an air box 3 (Fig. 3) or may be provided with cup shaped adaptors 5 with air holes (Fig. 6).
Patent GB-1338175-A (GB)
Title: Tuners
IPC: H03J5/08
Filed: 1971-07-21
Abstract: 1338175 Push-button tuners GENERAL INSTRUMENT CORP 21 July 1971 [23 Oct 1970] 9086/73 Divided out of 1338174 Heading H3Q The subject matter of this Specification is substantially the same as that described in Specification 1,338,174 but the claims are concerned with a tuner having a shaft (62, Figs. 2, 4 and 5, not shown) with a tapered section (74) which is urged into engagement with the convergent walls of an opening (68) in a wall (22) of a housing of the tuner so as to minimize the backlash between gears (38, 60).
Patent GB-706035-A (GB)
Title: Improvements relating to grit laying apparatus
Inventor: COATES GEORGE LEOPOLD ALBERTS
IPC: E01C19/21
Filed: 1951-04-18
Abstract: 706,035. Grit-spreading machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 18, 1952 [April 18, 1951], No. 9101/51. Class 6 (1) A road-gritting machine comprises a hopper 1 from which grit falls on to an endless band 20 travelling rearwardly at a speed approximately equal to the forward speed of the machine so that the grit is discharged with little tendency to roll along the road surface. The hopper 1 is mounted on a chassis 2 supported on land wheels 3 and towed by a forward vehicle 6 which carries a supply magazine 9, for grit, having an endlessband floor 10. The band 10 moves the grit rearwardy past a sliding gate 14 so that it falls into the hopper 1 and gravitates down the inclined floor 15 to an aperture 16 closable by a further gate operated by a hand-wheel 18. The bands 10 and 20 are driven by chains 12 from the land wheels 3. The band 20 is carried by a frame 21 which can be pivotally raised and lowered about a bracket 22 by a hand-lever 25. The conveyer 20 is preceded by a brush 26 and by tar-spraying nozzles 31 supplied with tar from a compartment 8a on the vehicle 6. The brush 26 and tar-spraying equipment are driven by a motor 29.