baber/WOPTO huggingface dataset:
Patent GB-841874-A (GB)
Title: Improved binders for foundrywork
IPC: B22C1/18
Filed: 1958-04-23
Abstract: Organic silica solutions prepared from silica hydrosols obtained from water soluble mineral silicates, a change of liquid medium being effected in the presence of an organic solvent by osmosis or by physical separation in the presence of a salt followed by osmosis, are used as foundry mould binders.  The hydrosol obtained by the reaction between e.g. hydrochloric acid and sodium or potassium silicate may have the excess acid and salt eliminated by dialysis. The water is then replaced by an organic liquid such as methyl alcohol, acetone, or dioxane, by osmosis. In another method, to the silica hydrosol is added an appropriate salt such as sodium chloride and the organic solvent such as acetone.  The mixture progressively separates into two layers, the lower a solution of salt saturated with water and the upper one a silica organic solution containing residual water, which last is then eliminated by osmosis.  Reference is made to the use of the organic silica solutions as impregnation media, fillers to reduce shrinkage, paint and varnish media and organic composites where other organic groups could be bonded to the solutions. Specification 841,873 is referred to.
Patent GB-552452-A (GB)
Title: Improvements in ink ribbon mechanism for typewriters
IPC: B41J35/30
Filed: 1941-10-06
Abstract: 552,452. Ink-ribbon mechanism. GESER, J. R. Oct. 6, 1941, No. 12900. Convention date, Oct. 5, 1940. [Class 100 (iv)] In duplicating-arrangements for typewriters wherein two or more ribbons 2a, 26 are wound on and off a common pair of spools 32 and are guided along the printing line, the outer and inner ribbons are tensioned by spring winding-devices in either or both spools, and one or more spring-tensioned guiderollers 23 respectively. In the preferred construction, each spool 32 is coupled to a pinion 5 which engages a brake-spring 13 and is geared to a frictionroller 15 engaging the platen 1. The pinion is provided with a sleeve 7 which is mounted on a pin 30 and is connected by a coiled spring 19 to another sleeve 14 having a pin 16 engaging a slot in the spool. The sleeve 14 is provided with a spring-pin 18 for retaining the spool. A bayonet-joint 20 permits of the sleeve 14 being released and then turned to pre-tension the spring. The spring tends to feed the ribbon on to the spool during either the winding or unwinding movement thereof. The tensioning-rollers 23 for the ribbon 2b are carried by pivoted arms 22 abutting'on springs 24.
Patent GB-1068561-A (GB)
Title: Phenols and phenolic resins
IPC: C07C39/15
Filed: 1964-03-26
Abstract: The monoethers produced by reaction of a phenol with a non-conjugated polyunsaturated hydrocarbon (see Division C2) may be used as high-temperature lubricants.ALSO:Phenols are substituted in the nucleus, or the hydroxylic H atom is replaced, by reaction in presence of an acid catalyst with a non-conjugated polyunsaturated hydrocarbon; the latter contains a main structure of 7-21 C atoms arranged either linearly with 3 or more C atoms between double bonds, or as a single ring of at least 8 C atoms with 2 or more C atoms between double bonds.  The reaction of 1,5-cyclooctadiene with 1 mol. phenol is stated to give a monophenol and an ether in which the diene is converted to a saturated bicyclic structure; 1,5,9-cyclododecatriene with 1 mol. phenol, a monophenol and an ether in which the triene is converted to a saturated tricyclic structure, but with 2 mols phenol, the triene gives a bisphenol, a bis(phenyl ether) and a monophenolmonophenyl ether stated to contain a bicyclododecane structure, as in all these cases Br2 reacts by substitution instead of the expected addition.  1,5-Cyclooctadiene reacts with 2 mols phenol giving products in which the cyclooctane ring is retained, and linear polyenes (e.g. 1,7-octadiene) give the anticipated products.  The monophenolic products stabilize trichloroethylene.ALSO:Novolac-type resins are derived by reacting a slight molar excess of a phenol with a nonconjugated polyunsaturated hydrocarbon.  The latter may contain 7-21 carbon atoms arranged either linearly with 3 or more carbon atoms between double bonds, or as a single ring of at least 8 carbon atoms with 2 or more carbon atoms between double bonds.  They may contain halogen, methyl, ethyl or phenyl substituents. Compounds specified include cycloocta-1,5-diene, cis, trans, trans- and trans, trans, trans-cyclododeca-1,5,9-triene and octa-1,7-diene. Phenols specified include phenol itself, mono-substituted phenols in which the substituents are OH, F, Cl, Br, C1- 18 alkyl, C5- 18 cycloalkyl, e.g. cyclopentyl, cyclohexyl, methyl cyclohexyl and butyl cyclohexyl, C6- 18 aryl or aralkyl, e.g. phenyl, a -methyl benzyl, benzyl and cumyl or one of these hydrocarbon groups in which a carbonyl group is present in the carbon skeleton or a carboxyl group is present and m-disubstituted phenols.  Acid catalysts specified include BF3.  The reaction may be effected by adding the unsaturated hydrocarbon to a hot mixture of the phenol and catalyst.  The excess phenol may then be neutralized with for example NaHCO3.  The product may be filled, e.g. with wood flour, mica or wax and crosslinked with hexamethylene tetramine, or paraformaldehyde.  The resins also give polyesters by reaction with dibasic acids (or their anhydrides or halides).  In examples unsaturated hydrocarbons are treated with a large excess of phenol, the 1:1 adduct is distilled off and the resin remains in the still.ALSO:The N-methyl carbamate of the monophenolic product of reacting phenol with cis, trans, trans-1, 5, 9-cyclododecatriene prevents the development of early blight disease on plant foliage.
Patent GB-528260-A (GB)
Title: Improvements relating to spring mattresses, upholstery and the like
IPC: A47C23/055
Filed: 1939-05-02
Abstract: 528,260. Spring mattresses. WILSON, V. N. May 2, 1939, No. 13036. [Class 52 (iv)] A spring mattress comprises a rectangular frame A having secured thereto a foundation B of close coiled small-diameter helical springs or resilient members a spring interior formed of double conical springs D superposed upon the foundation a stuffing J of flock, hair &c. and a cover enclosing the mattress. In addition to the springs D a series of preferably conical springs F bearing on the frame A may be provided. A layer of sound deadening material C may be interposed between the foundation and spring interior.
Patent GB-1249593-A (GB)
Title: Automatic gain control system for camera tube
IPC: H01J31/48
Filed: 1970-03-18
Abstract: 1,249,593. Automatic gain control; transistor amplifying circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 18 March, 1970 [26 March 1969], No. 13060/70. Headings H3Q and H3T. In a television system comprising an image tube having first electrode means for generating a video signal corresponding to an optical image and second electrode means for controlling the gain of the tube, means are provided for developing a control signal representative of the amplitude of the video signal, and feeding it back to the second electrode means to maintain the video signal at a substantially fixed level. Camera tube 1, Fig. 3 comprises photoelectric cathode 6, a multiplier channel plate 7, target electrode 8 and read-out electron gun 9: the multiplier channel plate 7 comprises a bundle of small hollow fibres, the inside of each coated with a material emitting secondary electrons, across which an accelerating field is established by means of terminal electrodes comprising conductive coatings 10, 11. The video output from target electrode 8 is amplified in amplifier 2 the output of which is fed to an output terminal and also to A.G.C. circuit A.G.C., the output of which controls the variable voltage power supply 5b from which the potential across electrodes 10, 11 is derived. A transistor A.G.C. circuit, Fig. 4 is used, the output from terminals 13 of which comprises the supply voltage applied to terminal 15, Fig. 5 of transistor oscillator 14. The output from this is rectified by bridge rectifier circuit 17 and applied over filter circuit 18 to terminals 19, to which the electrodes 10, 11, Fig. 3 are connected.
Patent GB-784542-A (GB)
Title: Improvements in or relating to the colouration of hair
Inventor: DEADMAN LIONEL LESLIE FREDERIC
Filed: 1955-05-05
Abstract: Light or grey hair is given a dark colouration by applying an aqueous solution of a silver salt, e.g. silver nitrate, containing also p-amino-salicylic acid or a salt thereof, and then warming or drying the hair.  Alternatively, the hair may be treated with a solution of silver p-amino-salicylate, containing a slight excess of ammonia. Colour-development may be accelerated by subsequently applying a reducing agent, e.g. hydroquinone.
Patent GB-867977-A (GB)
Title: Strap tensioning device
Inventor: GERRARD JOHN M
IPC: B65B13/34
Filed: 1959-04-17
Abstract: 867,977. Band strainers. GERRARD & CO., A. J. April 17, 1959, No. 13137/59. Class 45. [Also in Groups XV and XXII] A lever operated band tensioning device incorporating a cutting device comprises a head 1 which has attached to it a pair of handles 3, 4. The band S passes through an open sided slot 2 in the head between a spring biased dog 17 and block-part 13 of the head, and then between a pair of spring biased grippers 21 mounted on the handles. The handle 3 and head are secured in fixed relationship to one another and the handle 4 and the dog 17 are pivoted to the head on a pin 5<SP>1</SP>. With the handles separated one end of the band may be passed freely through the slot 2, the dog 17 being held inoperative by the gripper on the handle 9. As the handles are closed, the band is first locked by the dog 17, then gripped by the jaws 22 of the grippers and finally drawn through the device as the grippers pivot about the pins 23 until they abut stops 31. The handle 9 is then opened to remove the grippers from the band but insufficient to disengage the dog, and the handle is then closed. Opening and closing of the handle 9 is repeated until the required band tension is reached. The cutting device comprises a cutter member 46 rotatable in a bore 49 in the head 1 and having an arm 55 normally biased by a spring 59 against a stop 65. When the band has been tightened, the whole tensioning device is rotated about the edge 43 of the head 1 until the arm 55 abuts the band to rotate the member 46 which cooperates with the edge 69 to shear the band. The ends of the band are retained by a clip 35 to which the other end of the band is hooked by a lug 41. The one end of the band is bent back over the edge 44 of the clip during the cutting of the band and is retained by turning down the lugs 39.
Patent GB-1422917-A (GB)
Title: Crane-carrying vehicle
IPC: B60P3/00
Filed: 1974-03-25
Abstract: 1422917 Transporting cranes CREUSOT-LOIRE 25 March 1974 [3 May 1973] 13170/74 Heading B8B An articulated crane-carrying vehicle, shown in the transport position, comprises a main support vehicle 2 whose platform 21 supports, on a swivel ring 3, a crane structure 5 having a telescopic jib 51 in cantilever, and an auxiliary support vehicle 1, independent of the vehicle 2, linked to the jib 51 by a pair of rods 12 and supporting the crane structure 5 through two rams 13 acting as shock-absorbers. The crane structure 5 is free to move about the axis of rotation of the swivel ring 3, but is fixed vertically relative to the platform 21, during transport.
Patent GB-377762-A (GB)
Title: Improvements in kinematograph films having sound records thereon
IPC: G03C5/14
Filed: 1931-05-05
Abstract: 377,762. Combined sound and multicolour picture films. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. May 5, 1931, Nos. 13209 and 14374. [Class 40 (ii).] A combined sound and multicolour picture film is built up of two superposed thin films one of which carries the pictures in one or more colours and the sound record in black and the other carries the pictures in the further colours and has a clear stripe positioned to superpose on the black sound record of the other film. The picture components and sound record are printed in known manner on gelatin-silver emulsion on one film, and after development and fixing, the black sound record is protected by a coating of waterproof varnish whilst the further treatment of the picture images is effected, after which the protecting layer is removed. Specifications 319,779, [Class 40 (ii), Phonographs &c.], 344,026, 357,604, 362,395 and 362,876 are referred to.
Patent GB-843195-A (GB)
Title: Device for securing the glass cover of the housing of an apparatus to a metal baseplate
IPC: G01D11/24
Filed: 1957-04-25
Abstract: 843,195. Indicating-apparatus. LANDIS & GYR A.G. April 25, 1957 [April 26, 1956], No. 13237/57. Class 106 (4). [Also in Group XXXVI] The glass cover of a housing for indicating apparatus is secured to the base by a metal ring which bears on a flange of the glass.cover, the ring being made up of at least two strips which are formed at the joints so as to form a guiding and spacing sleeve for the screws which secure the cover. Fig. 1 shows the two strips 4 each of which has an extended portion forming an open-sided sleeve 7 which is partially closed by the end 9 of the other strip. The sleeve 7 forms a spacing member which prevents the screw being over-tightened. The portion 9 may be indented so as to retain the screw which has a narrowed stem over much of its length. The end 8 of each strip may be turned up and a hole provided for sealing purposes. The side of the ring containing the fixing device may be bowed upwards so as to distribute the pressure more evenly around the periphery of the cover.
Patent GB-877156-A (GB)
Title: Automatic tapping machine
Inventor: KENCH EDWIN RALPH
IPC: B23G1/18
Filed: 1959-04-18
Abstract: 877,156. Screw-cutting machine details. VOUCHER Ltd., KENCH, E. R., and COOPER, C. April 19, 1960 [April 18, 1959], No. 13288/59. Class 83 (3). An automatic screwing machine comprises a tool 10 having squared portions 18, 19 on its shank 14 which may be in two parts, two collets 21, 22, in a chuck 16, for selective engagement with the square portions, and a sliding ring 23 for selectively engaging the collets with the shank. The work is fed by a feeding device which comprises two rams 40, 41 of pneumatio cylinders 38, 39, which are alternately actuated to hold a workpiece 20 in a feed pipe 35. In operation, a number of workpieces, e.g. tubes 20, are fed into the pipe 35, the first one resting on the ram 41 which is extended through an aperture 37 in the pipe. The ram 40 is actuated to hold the second tube in the pipe, and ram 41 is retracted thus allowing one tube to pass down the pipe and rest on the collet 21. The ring 23 having a further ring 29 connected thereto by rollers 27 journalled by pins 28, is moved axially until the collet 22 clamps the tool at 19, and the collet 21 is released, thus allowing tube 20 to fall on to the collet 22. Collet 22 is then released and collet 21 is engaged by moving ring 23 upwardly, and tube 20 moves down the tool 10 until it rests on the threads 11. On expanding vice 30 vertically movable on a column 31, is moved towards the tool 10, grips the work, and then pulls it over the rotating tool, thus producing the thread. As the collet 21 is closed to grip the tool, the position of the rams 40, 41 has been reversed, and a further tube 20 rests on the ram 41. The rams are again reversed and this tube then drops on to the collet 21, and the procedure is repeated. The operation of the parts is carried out in sequence.
Patent GB-737945-A (GB)
Title: Improvements in or relating to electrical pulse generating trigger circuit arrangements
Inventor: DAWSON LESLIE HOWARD
IPC: H03K3/13
Filed: 1953-05-12
Abstract: 737,945. Pulse generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 23, 1954 [May 12, 1953], No. 13291/53. Class 40 (6). In a pulse generator of the type comprising a reciprocally-coupled pair of valves one of which is a pentode and has a reactive pulse generating circuit connected to its anode, the suppressorgrid is caused to follow the potential of its associated cathode during the period when current is flowing and is maintained at a constant potential during the occurrence of a pulse. The Figure shows a pulse generator comprising reciprocally-coupled valves V1 and V2, the former of which is triggered by pulses from a master oscillator MO to cause sudden conductivity in pentode V2, thus shock-exciting inductor L. The first of the resulting burst of oscillations passes to the output, subsequent oscillations being damped out by diode D1. The suppressor grid of pentode V2 is connected to the cathode via diode D2 so that when valve V2 is conducting the suppressor grid potential follows that of the cathode either by charging capacitor K1 through diode D2 or by discharging K1 by the suppressor taking current. When V2 is cut-off the potential on capacitor K1 and thus of the suppressor grid remains substantially constant as K1 can only discharge through resistor R which may be made large.
Patent GB-516721-A (GB)
Title: Improvements in or relating to hydraulic motors
IPC: F03C1/36
Filed: 1938-05-04
Abstract: 516,721. Hydraulic motors. WAHLMARK, G. A. May 4, 1938, Nos. 13302 and 13303. Convention dates, May 17, 1937, and Feb. 7, 1938. [Class 69 (ii)] The distributing valve of a hydraulic swashplate motor comprises a wheel disc with rim 63 and hub 62 mounted eccentrically on the motor shaft and moving so that cylinder ports 28 are alternately opened to the inlet passage 14 through the space around the rim, closed by the rim, and opened to the outlet passage 15 through the space within the rim. Means for working the motor at two speeds comprises a tubular valve 74 surrounding the shaft and adapted to open or close communication between ports 71, 73. As shown in Fig. 1, the motor cylinders each contain two pistons 31, 32, and the valve 74 in its left-hand position allows liquid to act only on the left hand of the piston 31, giving a slow speed, the piston 32 then acting as a piston rod. In the other valve position, liquid entering the port 73 operates the piston 32, giving a high speed. The piston 32 has a conical end bearing on the outer race of a ball bearing carried by the swash-plate. In a modification, each motor comprises two cylinders, one of smaller bore than the other, and each with a single piston acting on the swash-plate, and the valve 74 in one position allows liquid to flow to both cylinders and in the other position to the smaller cylinder only. The inclination of the swash-plate may be adjusted by a screwed rod acting on a lever bearing indirectly on the plate. Specifications 516,565 and 516,764 are referred to.
Patent GB-850551-A (GB)
Title: Improvements in clutches
Inventor: SANDERS ALBERT VICTOR
IPC: F16H55/56
Filed: 1958-04-28
Abstract: 850,551. Friction clutches; belt gearing. HELI-STRAND TOOLS Ltd. Feb. 10, 1959 [April 28, 1958], No. 13359/58. Classes 80 (1) and 80 (2). A V-belt pulley 11, 12 freely rotatable on a sleeve 20 fixed to a driven shaft 23 is clutched to the latter by increased belt tension which moves axially one flange 12, on a sleeve 13 of the other flange 11, into frictional engagement with a flange 21 fast with the sleeve 20. A friction facing 14 is secured to the flange 12 by a stud 15 which passes through the flange 11 and carries a return spring 17. The belt tension may be varied by a jockey pulley on the outer face of the belt or by varying the distance between the shafts.
Patent GB-577838-A (GB)
Title: Improvements in or relating to loading machines
IPC: E21D9/12
Filed: 1943-08-18
Abstract: 577,838. Loading machines. JOY MANUFACTURING CO. Aug. 18, 1943, No. 13450. Convention date, Aug. 22, 1942. [Class 78 (i)] In a loading machine the gathering and conveying mechanisms can be raised and moved forward relatively to the chassis for operation in any desired plane above the floor on which the chassis travels. The gathering head 29 and conveyer frame 30 are pivoted on a shaft 28 which is mounted in a pair of arms 27 at the end of a frame 23. Pairs of pivoted links 15, 19 connect the frame 23 to the chassis 10. Lugs on the underside of the frame receive a shaft 39 on which is journalled the end of the piston of a hydraulic jack 35. The lower end of the cylinder of the jack is mounted on the chassis. The inclination of the head 29 relatively to the frame 30 can be varied by actuating a pair of hydraulic jacks 31 which are disposed between the end of the frame 23 and the head. A similar pair of jacks 32 is mounted between the frames 23, 30 and is used to adjust the height of the discharge end of the conveyer.
Patent GB-167601-A (GB)
Title: Apparatus for washing flower pots and the like
IPC: A47L15/37
Filed: 1920-05-15
Abstract: 167,601. Bradshaw, F. W. May 15, 1920 Vessel, washing and cleaning.-A mechanically-operated device for cleaning flower pots and similar articles having tapered sides comprises a conveyer belt 2 passing over sprocket-wheels 1, 4, the pots being led through a trough 3 and under rotary spindles 21, 28 whereby the articles are cleaned inside and outside successively. The flower pots are fed by hand into rings of the conveyer chain at the sprocket-wheel 4, and they are discharged into a shoot from the wheel 1 by a cam 14 on the shaft 5 operating spring-pressed plungers 16. The spindle 21 earries a brush 22, which is lowered into engagement with the inside of a pot when the handle 20 is depressed, the brush being rotated by an endless cord and pulleys 26, 27 driven from a treadle-operated flywheel 25. The operation of the lever 17 also raises through link mechanism 30 - - 34 a support 35, mounted on ball bearings so as to be freely rotatable. This member 35 lifts the pot positioned beneath the spindle 28 into engagement with a pad 29, so that the flower pot is rotated, its outer surface being engaged by non- rotating brushes which are brought into the operative position by links 40, 30 connected with the lever 17. On the return stroke of this lever it moves the conveyer belt through a lever and pawl device to feed the flower-pots one link forward. The shaft 28 is rotated from the fly-wheel 25, which may be operated by a treadle 23 or by a motor; or it may be operated by hand-power, in which case it is positioned on the spindle of the sprocket-wheel 4, as indicated by the arrangement shown in dotted lines in Fig. 1. Instead of the cleansing-liquid being contained in the trough, water may be sprayed on to the pots. Removable rings 9, Fig. 12, held in the conveyer chain by spring clips 10, are used for holding the pots.
Patent GB-235177-A (GB)
Title: Improvements in high pressure steam turbines
IPC: F01D1/02
Filed: 1925-05-22
Abstract: 235,177. Erste Br³nner Maschinen- Fabriks-Ges. June 5, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 230,419. Axial-flow type. - In steam turbines using steam at very high pressures, in addition to the proportioning of the dimensions of the guide and rotor blades as claimed in the parent Specification. the dimensions are selected so that the surging shock in the separate expansion stages causes at most a difference in pressure of 0.25 atmospheres.
Patent GB-236179-A (GB)
Title: Improvements in aeroplanes for increasing their stability
IPC: B64C1/00
Filed: 1925-05-22
Abstract: 236,179. Tammeo, A., Caminada, E., Foppiano, P., and Scotti, C. June 30, 1924, [Convention date]. Planes, arrangement of; aeroplanes.-By suitably disposing the engine, crew and cargo space &c. of an aeroplane the rolling axis is tilted backwardly from the line of flight as shown at yy, and two fixed horizontal stabilizing planes 1, 2, and two vertical fins 3, 4 as described in Specification 236,178 are arranged each with their centres of pressure behind the pitching and steering axes and above this rolling axis. The centre of pressure of the complete aeroplane is situated at g.