baber/WOPTO huggingface dataset:
Patent GB-266924-A (GB)
Title: Method of decorating metal plates
IPC: B44C1/10
Filed: 1926-04-06
Abstract: 266,924. Auld, F. H. April 6, 1926. Ornamenting. - A metal plate 1 is ornamented by providing the plate with a number of recesses 3, 5, pressing a sheet 6 of veneer into the recesses, removing the parts of the sheet lying in selected recesses such as the recesses 5, and then pressing a second sheet 9 of veneer of contrasting colour or grain into the vacated recesses. The recesses 3 are coated with cement so as to fix the parts of the sheet 6, and, after the parts of the same sheet have been removed from the recesses 5, they also are cemented to fix the sheet 9. After each pressing 'a operation, the protuberances formed on the sheets by walls 2, 4 defining the recesses are removed by grinding, the final surface being level with the tops of the walls.
Patent GB-590892-A (GB)
Title: Improvements in or relating to the control of a.c. circuits subject to line voltage variation
IPC: B23K11/24
Filed: 1944-05-12
Abstract: 590,892. Automatic voltage regulation. BUDD MANUFACTURING CO., E. G. May 12, 1944, No. 9126. Convention date, April 19, 1943. [Class 38 (iv)] Constant power in a system, such as a resistance welding system, subject to line voltage variations is obtained by the phase shift of the voltage applied to the grids of valves 20, 21 arranged to trigger ignitrons 15, 16 under the control of a peaking transformer 45 supplied across a phase shifter, which includes a bridge system 49 having a resistance 54 and a reactor 52 arranged to function as a resistance, and has also a voltage bridge 89 controlling means for varying the effective resistance of reactor 52 to compensate for line voltage changes, the normal effective resistance of the reactor 52 being greater than that of resistance 54, whereby the degree of compensation of line voltage change varies directly with changes in load. The reactor 52 comprises the primary winding of a transformer 53 which has'its secondary winding 70 connected across the anodes of a pair of triode valves 71, 72 with strapped control grids connected to a potentiometer 102 across the bridge 89, so that the reactor 52 is variably loaded (inductively) in accordance with changes in the grid voltage, which is the difference between a constant voltage and the load circuit voltage. The bridge 89 comprises a gas-filled diode 94 and resistance 95 in series parallel with a resistance 96 and diode 97, these being connected across a filtrated full-wave rectifier circuit supplied by a transformer connected across the supply lines 28. At normal line voltage the bridge 89 is balanced, and when the line voltage varies a constant voltage obtains across the diodes, the difference appearing across the resistances. The triggering valves 20, 21 associated with the ignitrons 15, 16 are provided with shield grids 24 whereby additional control is exercised by a biassing transformer 35 with a primary winding 36 connected across the lines 28, and two pairs of associated secondary windings 37, 39 and 38, 40 forming units of opposite polarity, one end of each unit being connected to a shield grid 24 and the other end to a control grid 25 or 26. Timing of the welds is controlled by a control device which has a coil 46 arranged as a primary winding associated with the secondary windings 39, 40 of the biassing transformer 35. Specification 551,775 is referred to.
Patent GB-609909-A (GB)
Title: Improvements in and relating to attitude indicators for aircraft
IPC: G01C19/44
Filed: 1946-03-25
Abstract: 609,909. Attitude-indicators for aircraft. BRITISH THOMSON-HOUSTON CO., Ltd. March 25, 1946, No. 9142. Convention date, March 28, 1945. [Class 4] An attitude - indicating instrument has an indicator in the form of a miniature threedimensional airplane which moves with reference to a back-ground member in response to pitch-and-bank movements of the aircraft. A case 1 with a face-plate 2 for mounting the instrument in a panel contains a shaft 8, mounted in bearings to carry the miniature airplane 4 balanced to occupy a level flightposition from which it can be readily moved by an applied force. A hemi-spherical background member 5 marked with a horizon line 6 and with circles indicating pitch angles.contains the miniature 4 and is stabilised about the roll-axis D-D by being carried on the outer gimbal 16 of the mounting for a vertical axis gyroscope 14; when banking occurs the miniature 4 turns with respect to the horizon line 6 to show the banking. When the aircraft climbs or dives a magnet 23 on gyro 14, and which normally co-operates with a magnet 24 on the miniature to hold it central of the pitch-angle circles, is moved above or below magnet 24 and causes the miniature to be inclined correspondingly.
Patent GB-801706-A (GB)
Title: Allylidene dicrotonates and process for their production
IPC: C07C69/527
Filed: 1957-03-20
Abstract: Allylidene dicrotonates of the general formula (CH3.CH=CH.COO)2CH.C(R)=CH2 in which R is a hydrogen atom, an alkyl group or a halogen atom (for preparation see Group IV (b)), may be homopolymerized or copolymerized with other monomers, such as vinyl chloride, to yield resins useful as protective coatings.  For example, allylidene dicrotonate is polymerized at 100 DEG  C. for 90 hours using 1 per cent diacetyl peroxide as catalyst to form a clear, brittle, acetone soluble resin.  Chloroallylidene dicrotonate is polymerized at 50 DEG  C. for 123 hours using 1 per cent azobisisobutyronitrile as catalyst to yield a low molecular weight polymer.  Chloroallylidene dicrotonate copolymerizes with vinyl chloride, vinylidene chloride or styrene to form soluble copolymer and with acrylonitrile to form insoluble copolymers.ALSO:The invention comprises an allylidene dicrotonate of the general formula (CH3.CH=CH.COO)2CH.C(R)=CH2 in which R is a hydrogen atom, an alkyl group or a halogen atom, especially chlorine or bromine.  The novel compounds may be prepared by reacting crotonic anhydride with an aldehyde having the formula CH2=C(R).CHO, where R is as defined above, preferably in a mol. ratio of anhydride to aldehyde of from 3:1 to 0.3:1 at a temperature of from 0 DEG  to 100 DEG  C. for 1 to 100 hours in the presence of 0.02 to 0.5 per cent of a strong acid such as sulphuric, hydrochloric, phosphonic, sulphoacetic or toluenesulphonic acid, and if desired in the presence of an inert solvent.  The process may be operated on a batch or continuous basis. On completion of the reaction the mineral acid should be neutralized with, for example, alkali metal acetates, propionates, crotonates or carbonates, before the reaction mixture is distilled.  In examples: (1) and (2) a benzene solution of acrolein is fed into a mixture of crotonic anhydride and sulphuric acid and after 1 hour at 45 DEG  C. and 16 hours at 25 DEG  C. the mixture is neutralized with sodium acetate and fractionated under reduced pressure to give allylidene dicrotonate; (3) methallylidene dicrotonate is similarly obtained; (4) a solution of 2-chloroacrolein in 1,1,2-trichloroethane is fed into a mixture of crotonic anhydride and sulphuric acid and after reaction at 50 DEG  C. the mixture is neutralized with sodium acetate and fractionated under reduced pressure to obtain 2-chloroallylidene dicrotonate. Other novel compounds specifically mentioned are those in which R is ethyl, propyl, butyl, pentyl, hexyl and bromine.  The products may be homopolymerized or copolymerized to yield resins which are useful as protective coatings (see Group IV (a)).
Patent GB-218383-A (GB)
Title: Improvements in or relating to geysers and other water heaters
IPC: F24H1/20
Filed: 1923-04-04
Abstract: 218,383. Letheren, T. W., and Letheren, W. R. April 4, 1923. Block-form boilers; internally-fired boilers. -A geyser or similar heater has fixed through it a. single central flue 1 large in diameter compared with the diameter of the casing 2 and of the shape formed by flattening a pipe at one or more points along its length. With two or more successive flattened parts 1<a>, 2<a>, 3 - - 7 these are displaced angularly to one another. The walls 8 of the flattened parts may be flat, convex or concave. The crosssection of the flattened parts may be progressively restricted. Specification 192,432 is referred to. Reference has been directed by the Comptroller to Specification 15192/91.
Patent GB-257849-A (GB)
Title: Improvements in or relating to keyboard violins and like stringed musical instruments
IPC: G10D3/08
Filed: 1926-04-09
Abstract: 257,849. Wade, H., (Mills Novelty Co.). April 9, 1926. Keyboard stringed instruments.-In an electrically operated keyboard violin &c., depression of a key 2a to normal extent closes the notesounding circuit at 9, while further depression of the kev closes a tremolo circuit at 10. The normal depression of the key is against the action of a spring 5a only, during which movement the lost motion in the connection at 7 of another spring 6<a> is absorbed, both springs being in action against the further depression of the key.
Patent GB-759077-A (GB)
Title: Cabinet beds or settees
IPC: A47C17/60
Filed: 1954-03-31
Abstract: 759,077. Bedsteads. DOLPHIN, J. R. V. March 30, 1955 [March 31, 1954], No. 9446/54. Class 52(2). A cabinet bed has a rear wall 13, end walls 14, 15 and a front wall 12 hinged in the end walls and constituting the base of the bed, a flap 19 forming the top of the cabinet when closed and a support for the bed when open being hinged to the upper edge of the wall 12. A batten 16 forms an abutment for the flap 19. In a modification, Fig. 6, a double bed is provided.
Patent GB-184218-A (GB)
Title: An improved valve for automatically controlling an auxiliary supply of air to the cylinders of internal combustion engines
IPC: F02D9/00
Filed: 1921-03-30
Abstract: 184,218. Marks, E. C. R., (Gadsby, F. C.). March 30, 1921. Check or non-return valves.-An auxiliary air supply to the induction pipe of an internal-combustion engine is controlled by a three way cock mounted on the dash board of a vehicle and so constructed that in one position of the cock air may be drawn past an adjustable spring loaded automatic valve; in another position this valve is cut out and air drawn through an unobstructed port and in a third position the air is out off altogether. The cock 6 with ports 7, 8, 9 rotates in a casing 13 having a chamber 14 to which air may be admitted past an automatic valve 19, a port 16 leading to the atmosphere and a pipe 15 conveying the auxiliary air to the induction pipe. The cock is rotated by a handle 11 working over an indicator plate 10 which may have suitable marks thereon, and the device is secured to the dash board 29 bv bolts and nuts 32. The spindle 21 of the valve 19 is hollow, has inlet apertures 20 and outlet apertures 22 and is loaded by an adjustable spring 25 acting upon a lever 23 engaging a slot 24 in the spindle. In the position shown in Fig. 3, the automatic valve is in action. By rotating the cock one way or the other, the valve may be cut out and the port 16 brought into action or the air may be cut off entirely.
Patent GB-839693-A (GB)
Title: Delay line
IPC: H01J23/26
Filed: 1957-03-22
Abstract: 839,693. Travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. (International Standard Electric Corporation). March 22, 1957, No. 9511/57. Class 39(1). [Also in Group XL(b)] In a travelling wave amplifier tube the delay line is made up of a cylinder having conducting fingers projecting radially inwards therefrom beyond the axis of the cylinder and axially and angularly displaced so as to form a discontinuous helix and ferrite elements projecting from the wall opposite each conducting finger. The ferrite elements rotate the E vector of the wave into the plane of each successive delay line element so that the forwardly travelling wave follows a helical path and is unattenuated, while the reflected wave is rotated to follow a helical path by the ferrite elements progressively more and more out of the planes of successive delay line element until finally no current is induced by the wave in the delay line elements and the reflected wave is suppressed. The ferrite elements 3 have an axial biasing magnetic field which also serves as the main focussing field of the travelling wave amplifier. The tube wall acts as a metal pipe waveguide below cutoff to the reflected wave when it has been rotated so far out of the planes of the delay line elements that no current is induced by the wave in the fingers. The delay line fingers may be made of lossy material.
Patent GB-586032-A (GB)
Title: Improvements in or relating to a process for the hardening of artificial fibres of casein
IPC: D01F4/00
Filed: 1944-05-18
Abstract: Artificial filaments obtained by a dry spinning process from an alkaline solution of casein are subjected while in alkaline condition to a preliminary hardening treatment and then, after removing the alkali and without any intermediate stretching, they are hardened by treatment with a solution of a polyvalent metal salt which has been rendered partly basic by addition of alkali. The solution may also contain a salt such as sodium chloride or perchlorate which represses the swelling of the casein fibre.  In an example, the hardening solution comprises 100 grams of ammonium iron alum, 1.3 grams of water-free sodium carbonate, and 30 grams of potassium perchlorate, per litre.  The iron salt is rendered about 1/24 basic and the pH value is about 2.  In another example, the solution comprises chrome alum, and sodium carbonate to render the chromium salt about 1/3 basic.  In another example, the solution comprises ammonium alum, sodium carbonate, and sodium chloride.  Gaseous formaldehyde may be used for the preliminary hardening.  The spinning solution may contain 25 per cent or more of casein.  Specification 570,572 is referred to.
Patent GB-1024779-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: SANDBANK CARL PETER
IPC: H01L23/535
Filed: 1964-03-06
Abstract: 1,024,779. Digital data storage. STANDARD TELEPHONES & CABLES Ltd. March 6, 1964, No. 9635/64. Heading G4C. [Also in Division H1] A word-organized store comprises an array of tunnel diodes TD1 . . . TD6, interconnected in a matrix array including resistances such as R 1 , R 2 , R 3 , the whole being formed as an integral structure in a single semi-conductor body (see Division H1). In use, half-write pulses are fed into appropriate X and Y lines to change the state of corresponding bi-stable diodes and read-out is obtained by a pulse fed to a line X 2 .
Patent GB-1149921-A (GB)
Title: Photographic products and processes
IPC: G03C8/28
Filed: 1966-03-04
Abstract: 1,149,921. Partially hydrolysed films. INTERNATIONAL POLAROID CORP. 4 March, 1966 [8 March, 1965], No. 9657/66. Heading B5B. [Also in Divisions B2, C7 and G2] Dispersions of gold in cellulose esters, e.g. cellulose acetate, may be cast or extruded as self-supporting film and the cellulose ester hydrolysed to cellulose, at least to a limited depth. The gold may be replaced by other heavy metals, or their sulphides or selenides, and the cellulose ester by a polyvinyl ester or acetal which gives polyvinyl alcohol on hydrolysis.
Patent GB-415514-A (GB)
Title: Improvements to power driven machines for the production of roofing tiles. floor tiles, paving slabs, bricks, blocks and the like
IPC: B28B3/12
Filed: 1933-04-01
Abstract: 415,514. Moulding tiles, bricks, blocks, &c. by a feed roller coacting with a procession of moulds. POWEL, W. S., 110, Canterbury Road, Croydon. April 1, 1933, No. 9816. [Class 87 (ii).] In a machine for making tiles, paving slabs, bricks &c. of the kind in which a succession of pallets are moved forward by a reciprocating mechanism beneath a hopper and roller feed device, means operatively connected to the pallet moving mechanism is arranged to drive the feed roller positively during the forward movement of the pallets, the means being moved to an inoperative position during the idle return movement of the pallet moving mechanism. The pallets are fed by an anvil 11 on a carriage 6 reciprocated on guide rails between the side walls 10 of the machine by a crank 1 and connecting rod 4, the carriage 6 being connected by rods 9 to a second carriage 8. A rack comprising a chain or chains 13 is mounted on a strip 20 carried by brackets 22, 23 pivoted on pairs of links 24, 25 pivoted respectively at 28, 29 to the carriages 6, 8. One of the links 25 is provided with an extension 25<a> provided with a series of holes 30 any one of which may be engaged by a spring 32 connected by a chain 31 to a fixed part of the machine. When the rack 13 is in the raised position, the bracket 22 contacts with a stop 33 on the carriage 6 and the rack engages with a sprocket wheel 34 on a shaft 37 geared by a chain 40 to the feed roller 43 above which is situated the feed hopper. At the end of the rearward idle movement of the carriages, the rack 13 is raised, due to the tautening of the chain 31, and is maintained in the raised position with the bracket 22 in contact with the stop 33, during the forward pallet-feeding stroke, by the reaction of the wheel 34 on the racks. When the reverse movement begins, the direction of the reaction of the wheel is reversed, and the rack swings down out of engagement therewith.
Patent GB-1151143-A (GB)
Title: Improvements in or relating to Stowages for Inflatable Liferafts.
Inventor: OLDHAM WALTER
IPC: B63C9/23
Filed: 1967-03-02
Abstract: 1,151,143. Stowage for inflatable life raft. FRANKENSTEIN GROUP Ltd. 5 Feb., 1968 [2 March, 1967], No. 9824/67. Heading B7S. In a stowage for an inflatable life raft comprising two rigid members 5, 6 secured edge-toedge by means adapted to fail on expansion of the contained raft, a painter-line 25 for tethering the raft to a parent craft and a separate tripline 26 for the self-inflation mechanism of the raft are connected to opposite ends of a resilient plug 20 engaged between the edges 12 of the stowage members in a fluid-tight manner. The plug, which is accommodated in a rounded notch 16 formed in one or both of the members 5 and/or 6, is moulded around a metal link 22 whose ends are formed with slots 24 to which the painter and trip lines 25, 26 are connected.
Patent GB-793705-A (GB)
Title: Improvements in or relating to glow discharge tubes
IPC: H01J17/44
Filed: 1955-04-04
Abstract: 793,705. Cold-cathode tubes. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 4, 1955 [April 2, 1954], No. 9850/55. Class 39(1). In a gear discharge trigger having a screen 4 with an opening 5 arranged between the cathode 1 and anode 3 near the anode to raise the ignition voltage, the ignition sensitivity is increased by positioning the ignition electrode 2 so that its discharge surface is located near a point on the cathode 1, which point lies nearer said opening 5 than any adjacent points on the cathode. The arrangement provides an unobstructed path between the ignition gap and the anode. The screen 4 may have no external connection and may be made of insulating material. The ignition electrode may be a metal strip arranged near the lower edge of the cathode or may be a rod projecting through a hole in the cathode. In an alternative arrangement the ignition electrode is a rod which is arranged parallel to a side edge of the cathode opposite a slot in the screen. In the arrangement shown in Fig. 5 the ignition electrode 2 is located at the lower edge of the cathode 1 and the screen 4 is formed of ceramic material and has a tubular portion enclosing the main anode 3. The tube is filled with a " Penning-gas," i.e. a mixture of two rare gases, one of which has a metastable energy level higher than the lowest ionization potential of the other, e.g. 99 per cent. neon and 1 per cent. argon.
Patent GB-630718-A (GB)
Title: Improvements in or relating to a method of and means for marking polished strip steel in rolls
IPC: B41M1/28
Filed: 1947-04-14
Abstract: 630,718. Etching. VAZQUEZ, A. ALVAREZ-. April 14, 1947, No. 9864. Convention date, Nov. 12, 1945. [Class 100 (ii)] A method of marking a continuous metal strip or wire consists of heating successive portions of the strip to modify their colour by oxidization, allowing the portions to cool, etching by acid to remove the oxidation from the successive portions of the strip, and washing to remove all acid residues. As shown, a coil of strip 1 is unwound and fed to a pair of tensioning and drawing cylinders 2, 3 which also apply an electric current to the strip. The actual colour of the oxidization is determined by adjusting the amount of heat given to the strip, either by varying the current by means of a rheostat, or by adjusting the distance between the cylinders 2, 3. The strip is then treated with acid by rollers 5 from which the strip passes, as indicated by a dotted line, to a washing bath 12 from which the strip passes to a neutralizing bath 14 and then through a layer of oil 16 in a bath 15, which covers the strip with a preserving film, and finally past wipers 19. The rollers 5 may be printing rollers applying a resist, in which case the strip, after printing passes through an acid bath 10 which removes the oxidization from the strip except where it is covered by the resist, and from where it then passes to the baths 12, 14, 15. The bath 15 in this case serves also to remove the resist which falls as a sediment into a layer of water 17 which serves to keep the oil 16 clean. The rollers 5 may have their markings in relief or intaglio and may have concave printing surfaces for printing on wires.
Patent GB-359869-A (GB)
Title: Manufacture of metallurgical coke
IPC: C10B37/00
Filed: 1931-04-01
Abstract: 359,869. Coking processes. STILL, C., Recklinghausen, Westphalia, Germany. April 1, 1931, No. 9882. Convention date, April 3, 1930. Addition to 356,079. [Class 55 (i).] In a process of withdrawing distillates by suction from ducts in the interior of a coke oven charge, as described in the parent Specification, a hard metallurgical coke is obtained by charging coal of high volatile content (over 30 per cent) loosely into the oven the walls m of which are maintained at temperatures which do not substantially exceed 850- 900‹ C. Ducts e are formed in the charge a by insertion of rods f, and tubes c are introduced, the tops being sealed by packing d in tubular chambers b beading by pipes h, i to a common main connected with an exhauster. A constant and approximately atmospheric pressure is maintained to the gas space o.
Patent GB-288206-A (GB)
IPC: C08J3/26
Filed: 1928-04-02
Abstract: 288,206. I. G. Farbenindustrie Akt.- Ges. April 4, 1927, [Convention date]. Vulcanizing latex.-Latex is vulcanized by successive treatment with SO2 and H2S, coagulation being prevented by a medium such as the conden-- sation product obtained according to Specification 7138/13, [Class 2 (iii), Dyes &c.], from naphthalene, formaldehyde and sulphuric acid; or sulphonic acids of alkylated naphthalenes, or sulphonation products of oils, naphthenic or fatty acids &c. Specification 129,826 also,is referred to.
Patent GB-147979-A (GB)
Title: An improved device for transmitting heat from one fluid or vapour to another
IPC: F24H1/26
Filed: 1919-04-17
Abstract: 147,979. Rouse, E. E. April 17, 1919. Grates; air supply, regulating; lighting fires.- A boiler having a helical flue 6 is carried in a frame 28 to which are pivoted levers 29 adapted to be moved by bars 32 through levers 31 by which means the grate can be lowered for clearing or stoking. A perforated ring 36 controls the air supply. A gas burner for lighting the fire may be attached by a bayonet joint at the base.