baber/WOPTO huggingface dataset:
Patent GB-1396622-A (GB)
Title: Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group
IPC: C07C401/00
Filed: 1973-02-02
Abstract: 1396622 Sulphones having a 1,5-dimethylhexa-1,5-dienylene group; Vitamin A RHONEPOULENC SA 2 Feb 1973 [2 Feb 1972 10 April 1972] 5367/73 Headings C2C and C2V The invention comprises compounds of the formula wherein the sulphonyl group -SO 2 R replaces a H atom or C atom (a) or (b), R is alkyl, alkenyl, aralkyl, alkaryl or aryl each of which may be substituted by substituents which are electron donors or acceptors, each of A and Q represents (a) a hydrocarbon radical containing 5 n+1  carbon atoms (n being an integer from 1 to 5) which may be substituted; (b) -CH 3  which may be substituted by halogen, -SR<SP>1</SP> or -SO 2 R<SP>1</SP> wherein R<SP>1</SP> is alkyl, aryl, or aralkyl which may be substituted; (c) -CH 2 OH, an ether or ester thereof; (d) a free or protected -CHO group; (e) -COOH or an ester thereof, COCl or CN; with the proviso that when A is a 2-(2,6,6-trimethylcyclohex-1-enyl)-ethenyl radical, Q is not -COOH or an ester thereof. They may be obtained (1) by reacting a compound of the formula with a compound of the formula where one of X and Y is halogen and the other is SO 2 R, in the presence of a basic agent capable  of converting the compound in which X or Y is SO 2 R into an anion; (2) when the sulphone group replaces a H atom on C atom (a), by reacting a compound of the formula  with a compound of the formula wherein Q<SP>1</SP>H corresponds to Q, in the presence of an alkaline agent; or (3) when the sulphone group replaces a H atom on C atom (b), by reacting a compound of the formula with a compound of the formula wherein A<SP>1</SP>H corresponds to A, in the presence of an alkaline agent. Examples are given which illustrate these processes. Compounds containing the grouping or the grouping are obtained by desulphonating a sulphone of Formula I by treatment with a base or by reduction respectively. Specified compounds containing these triene and diene chains are acyclic or cyclic, terpene products and include ocimene, geraniol, citronnellol, citral, geranic acid and its esters, farnesal, farnesol and its esters, farnesic acid and its derivatives, axerophthene and its lower or higher isoprene homologues and the functional derivatives of this series, e.g. retinal and its acetals, Vitamin A and ethers and esters thereof, Vitamin A acid and esters and nitrile thereof, 4-oxo-retinal, apocarotenals and the corresponding alcohols and their ethers and esters, and apocarotenic acids and their derivatives; carotenoid compounds containing 40 or more C atoms. Examples are given in which Vitamin A and its methyl ether, #-carotene, geraniol, and 15,15<SP>1</SP>-dehydro-#-carotene are prepared.
Patent GB-608358-A (GB)
Title: Improvements relating to braking mechanisms
IPC: F16D65/52
Filed: 1946-02-21
Abstract: 608,358. Adjusting brake shoes. PRATT, J. H., and MANLEY, G. E. Feb. 21, 1946, No. 5387. [Class 103 (i)] Automatic means for maintaining a constant clearance between a brake drum 10 and shoes 5, which are applied by pistons 8 in a fluidpressure cylinder 9, comprise pistons 15 connected to the shoes by links 16 and movable to a limited extent in auxiliary cylinders 11 which are in communication with the cylinder 9 through flexible pipes 11a and are movable against a frictional restraint relative to the back-plate 6. Each cylinder is carried by a pin 12 which projects through an elongated slot in the back-plate and is encircled by a spring 13 interposed between the back-plate and a washer 14. The strength of the springs is such that the force exerted by the shoeretracting springs 17 is insufficient to cause movement of the cylinders. The pistons 15 are formed with annular flanges 15a located in annular grooves 11b of greater width formed in the cylinders 11, the difference in width between the flanges and grooves determining the constant clearance allowed between the shoes and drum. When the brake is applied, the flanges engage the outer walls of the grooves, and if the shoe clearance is then not fully taken up the cylinders are pulled outwardly by an appropriate amount and are maintained in their adjusted positions by the springs 13. If an over-adjustment of the shoes occurs due to heating of the brake drum and causes subsequent binding of the brakes, the shoe clearance may be restored to its correct value by a further application of the brake, the pressure established in the cylinders 11 moving them inwardly until the flanges 15a engage the outer walls of the grooves 11b.
Patent GB-373230-A (GB)
Title: Multiple light sensitive cell
IPC: H01G9/20
Filed: 1931-02-20
Abstract: 373,230. Light-sensitive cells. ARCTURUS RADIO TUBE CO., 720, Freling- huysen Avenue, Newark, New Jersey, U.S.A. Feb. 20, 1931, No. 5459. Convention date, March 31, 1930. [Class 40 (iii).] A light-sensitive device comprises a number of electrically-connected light-sensitive cells mounted in an assembly member of unitary structure. Some or all of the cells may be connected in series or in parallel, and individual cells may be withdrawn from the assembly member and replaced. A block 10 of insulating material is provided with recesses into which are fitted glass cylinders 15 containing a photolytic solution 24 of cobalt chloride and glacial acetic acid and closed at the top by screwed plugs 14 engaging sealing rings 16. Each plug has an electrode 21 and an electrode member 17 carrying a curved copper plate 19 with an etched surface 20 of cuprous oxide. The glass cylinders are placed in position so that the light-sensitive surfaces 20 of the individual cells are opposite windows 23 formed by openings cut in the block 10. The cells are connected in series or parallel by metal bars 25, which assist in maintaining the positions of the individual cells. The first and last cells of the series are connected in an external circuit through a condenser 28 and the primary winding 30 of a transformer 31.
Patent GB-1307331-A (GB)
Title: Continuous ultrafiltration of macromolecular solutions
IPC: B01D65/02
Filed: 1970-02-05
Abstract: 1307331 Ultrafiltration of gel-containing solutions AMICON CORP 5 Feb 1970 [5 Feb 1969] 5536/70 Heading B1X Solutions containing gel-forming dispersed particles or gel-forming macromolecules are ultrafiltered by flowing the solution across the face of a membrane using lamina flow in a thin channel membrane device with a velocity sufficient to exert on the membrane a hydrodynamic stress of at least 200 dynes/cm<SP>2</SP>. The temperature or velocity of the solution may be pulsed. There is reference to use of an apparatus having four channels each 0.01" height, 0.25" width, the wetted surface of the apparatus being coated with polytetrafluoroethylene. Solutions treated include bovine serum albumin, haemoglobin.
Patent GB-679164-A (GB)
Title: Improvements in or relating to a brush machine
IPC: A46D3/06
Filed: 1947-02-26
Abstract: 679,164. Drilling brush stocks. CARLSON TOOL & MACHINE CO. Feb. 26, 1947, No. 5564/47. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 30, 1947.] Class 83 (iii). [Also in Groups VII, XXIII and XXIV] A brush making machine is provided with drilling mechanism and tufting mechanism and means to move said mechanisms into operative position with respect to brush backs, said means including a jaw clutch 17 having a driven element connected to the drilling and tufting mechanisms and a driving element, means for rotating the driving element, and a friction coupling 151 interposed between the driving element and the rotating means therefor to cushion the shock of engagement of the clutch. As shown, the machine comprises drilling means 11, tuft-inserting means 12 (see Group XXIII), brush-back supporting means 13 and work-centring means 14. Reciprocation of the drilling means 11 and the movements of the other means 12 to 14 are effected via the rotation of a timing shaft 44 driven through
Patent GB-525374-A (GB)
Title: Improvements in anodes for lead accumulators
IPC: H01M4/14
Filed: 1939-02-20
Abstract: 525,374. Batteries. REIFFER, A. Feb. 20, 1939. No. 5591. Convention date, Feb. 23, 1938. [Class 53] A lead accumulator anode comprises two identical parts 2 separated by a neutral capillary system 3 of glass wool or silk, the fibres of which are, as far as possible, vertical.
Patent GB-129744-A (GB)
Title: Improvements in or relating to Tyre and like Inflating Valves.
Inventor: NEWSON JOSEPH NEWBY
IPC: F16K15/20
Filed: 1918-04-03
Abstract: 129,744. Newsom, J. N. April 3, 1918. Tyre and like inflating-valves.-A tyre valve is provided with a lift-valve member having an elastic face adapted to be compressed between members having concentric ridges of different diameters, so that when the face is compressed, parts of it are forced radially in opposite directions. The valve face 22 is held against a head 20 provided with a ridge 21, by a member 23 adapted to enter a recess 15 in the casing at the same time as a rounded enlargement, 19 on the spindle 17 enters a passageway 12 to guide the valve to its seat. The flat seat 14, which has a ridge 16, is formed at the bottom of a recess 13 in a head 11 on the casing 10. The outer end of the spindle is screw-threaded to support an abutment 26 for a spring 28 and to engage a cap 25 taking over the end of the casing, whereby the valve may be pulled to its seat.
Patent GB-557876-A (GB)
Title: Process for the production of wool-like artificial silk from cellulose derivatives
IPC: D02G1/02
Filed: 1942-05-01
Abstract: 557,876. Curling yarns. HEBERLEIN & CO., AKT.- GES. May 1, 1942, No. 5866. Convention date, May 2, 1941. [Class 120 (iii)] [Also in Group IV] Artificial silk yarns made from cellulose derivatives particularly cellulose acetate are rendered more wool like in appearance by subjecting them to a high degree of twisting, impregnating them prior to, during, or after the twisting with a water soluble and not readily volatile swelling agent, subjecting them to a dry heating treatment in the pressence of the swelling agent, and twisting in the reverse direction beyond the neutral point. The residual swelling agent if any, may be removed before or after the reverse twisting e.g. by rinsing with cold or hot water. The yarns may have a basis of cellulose formate, acetate, propionate butyrate or glycolate, or of a cellulose ether. The water soluble swelling agent may be dioxane, glycol mono acetate, mono acetin, glycol monomethyl ether, or glycol ethyl ether. A wetting agent may be added to the aqueous solution of swelling agent. The highly twisted yarn may be impregnated with swelling agent and subjected to the heat treatment when wound upon a perforated bobbin. The heat treatment may be carried out at 60‹ to 200‹C for a period of a few minutes to several hours. After rinsing, the yarn may be dried on the bobbin. When the twist has thus been fixed, the yarn is untwisted beyond the neutral point e.g. to 60-80 turns per metre in the opposite direction.After being reeled into hanks, the yarn exhibits curliness and acquires a wool-like appearance. This effect is improved and stabilized by heating the yarn with a solution of soap. The yarn is then rinsed and dried. If desired the reverse twisted yarn may be wound on to bobbins for weaving, reeling into hanks being omitted. The woolly character then becomes apparent only after the finished fabric has been soaped and it is conspicuous in pile fabrics and in loosely woven fabrics. The process may be carried out in conjunction with the process for producing the artificial silk e.g. by adding the swelling agents to a cellulose acetate dry spinning solution, subjecting the filaments to a high degree of twist, and then heating them. In examples, cellulose acetate yarns of 100-450 deniers are twisted to 1,500-1,700 turns per metre, impregnated with a solution of swelling agent, dried, heated, and reverse twisted. Two or more of such reverse twisted yarns may be twisted together. The solution of swelling agent may contain a wetting agent such as an alkyl naphthalene sulphonate, and it may be applied by passing the yarn through the solution or by passing the yarn over a moistened roller.
Patent GB-765416-A (GB)
Title: An improved lumbar traction harness
Inventor: SCOTT BRYAN OGLE
IPC: A61F5/02
Filed: 1955-02-28
Abstract: 765,416. Traction harness. SPENCER (BANBURY), Ltd., and SCOTT, B. O. Feb. 28, 1955, No. 5897/55. Class 81(2) A traction harness comprises two belts, one the upper belt. to encircle the lower thoracic area and the other. the lower belt, to encircle the pelvic girdle, each belt comprising a main portion to extend round the back and sides and a frontal pad; straps for securing the main portion to the pad and means for attaching the upper part of the upper belt and the lower part of the lower belt to traction means. The main portion of each belt comprises a back portion 1 and side portions 2 secured to a frontal pad 11, 21 by straps provided with slide buckles 18, 28 for securing to hooks 12, 13, 29, 30 on the frontal pad 11, 21. For each belt two sets of straps are provided, one set 14, 15 or 24, 25 being secured to the main portion of the belt adjacent the ends of its sides on the outer side thereof and the other set 16, 17 or 26, 27 being secured at a distance from its ends and on the inside of the main portion so that the belts may be accommodated to all types and sizes of patient. The frontal pad 11 of the upper belt is padded to reduce restriction in breathing. The upper belt is provided with straps 3, 4 carrying rings 9, 10 by which traction is applied to the belt, the straps 3, 4 being fixed to the back portion 1 and secured to the side portions 2 by spring hooks 5, 6 which engage one of the rings 7, 8 attached to the upper edge of the belt. Traction is applied to the lower edge of the lower belt by means of rings 22, 23 secured to the side portions.
Patent GB-575720-A (GB)
Title: Improvements in or relating to variable pitch propeller systems for aircraft and thelike
IPC: B64C11/44
Filed: 1944-03-31
Abstract: 575,720. Variable - pitch propellers. FORSYTH, A. G., PERT, G. J. SMITH-, and FAIREY AVIATION CO., Ltd. March 31, 1944, No. 6021. Convention date, April 2, 1943. [Class 114] In a propeller system for aircraft and the like, the pitch of each propeller is changeable in both directions by means of a reversible electric motor with two gear trains for selective actuation by the operator, means driven by the motor being provided to stop it when predetermined pitch positions are reached. As shown, a ring gear-wheel 4 on each propeller blade is rotated by a worm 6 on a shaft 8 on which is keyed a sleeve 16 slidable axially by a pivoted lever 18. The sleeve 16 has dogs 24 on gearwheels 12, 14 normally freely rotatable on the shaft 8. The gear-wheels 12, 14 are driven by a reversible electric motor 32 through a splined sleeve 38 with integral pinions 30, 36 and gearwheels 28, 34, the pitch-change movement being slower when the lever 18 is moved to the right than when it is moved to the left. Arms 62, 64 on the lever 18 actuate switches 58, 60 to start the motor 32 by a battery 40. The motor 32 also drives cams 50, 52, 54 and 56 to trip switches 42, 44, 46 and 48 when predetermined limits of reverse, feathering, fine and coarse pitch 'have been attained, as described in Specification 564,221. Alternative means for moving the sleeve 16 by the lever 18 is described and illustrated in the Specification. In a further modification, the gear trains include oppositely effective free-wheeling mechanisms.
Patent GB-478462-A (GB)
Title: Ultra-high frequency signalling systems and apparatus therefor
IPC: H03F3/52
Filed: 1937-03-01
Abstract: 478,462. Signalling through dielectric guides; thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.) March 1, 1937, No. 6052. [Classes 39 (i) and 40 (v)] Relates to an amplifier arrangement for coupling two sections of a transmission line of the dielectric guide type carrying centimetre waves. The incoming section 80 is terminated by a resonant chamber 81 formed between an adjustable plunger 83 and an iris diaphragm 82. The outgoing section 90 is similarly terminated by a resonant chamber 87 comprising a plunger 86 and iris diaphragm 85. A gap common to the two sections is bridged by the grid 73 of a valve amplifier. Potential differences set up across the grid and filament by the high-frequency fields in chamber 80 are amplified by the valve and transferred to the chamber 87. The grid 73 is permeable to electrons, and divides the glass bulb of the valve into two parts. It may extend through the glass walls and be fixed directly to the two sides of the gap between the guide sections.
Patent GB-955648-A (GB)
Title: Bright silver plating
IPC: C25D3/46
Filed: 1963-02-14
Abstract: Bright silver is plated from a bath containing alkali silver cyanide, a soluble antinomy compound, e.g. tartar emetic, and a soluble salt of methylene bis-naphthalene sulphonic acid.  In examples, potassium silver cyanide baths are preferred, and the antimony may be added in the form of the oxide chloride, or a complex, e.g. with E.D.T.A., or as the nitrilo-acetate.
Patent GB-904802-A (GB)
Title: C-substituted piperazinones and method
IPC: C07D241/08
Filed: 1960-02-20
Abstract: The invention comprises C - substituted piperazinones of the general formula: <FORM:0904802/IV (b)/1> wherein R1, R2, R3 and R4 are alkyl or aralkyl groups or hydrogen and Z is a polycyclic aryl group (including substituted phenyl groups, for example diphenylyl and phenoxyphenyl groups) and their preparation by the method of the parent Specification.
Patent GB-124602-A (GB)
Title: Improvements in or relating to Variable Speed Gears.
Inventor: BAGLEY SIDNEY ARTHUR
IPC: B62M25/00
Filed: 1918-04-10
Abstract: 124,602. Bagley, S. A., and Bransom, T. April 10, 1918. Turning-gear.-Several forms of variable-speed gear for motor-vehicles, motor-cycles, &c. are described which may be combined with engine starting mechanism. Fig. 3 shows a two-speed gear combined with an engine-starting mechanism. The starting-handle X, when turned, is advanced by a projection X<1> bearing on a fixed cam surface V<2>, and engages a clutch V with ratchet teeth which it presses into engagement with ratchet teeth U on the wheel F; the wheel F gears with the wheel E and turns the engine shaft A. When the handle has made one revolution, it and the clutch V are pressed back, into the disengaged position shown, by springs W<1>, W, and a coiled spring Z restores the handle to its normal position. Modifications are described, in which wheels on the lay shafts of three and four speed gears, corresponding to the wheel F, are provided with ratchet clutch teeth adapted to be engaged by engine-starting mechanism.
Patent GB-1086253-A (GB)
Title: Radio navigation receiver
IPC: G01S1/30
Filed: 1965-02-12
Abstract: 1,086,253. Measuring phase difference. STANDARD TELEPHONES & CABLES Ltd. Feb. 12, 1965 [Feb. 17, 1964], No.6171/65. Heading G1U. [Also in Division H4] The phase of a signal is to be measured against that of a reference signal. The reference signal e ref  may be applied to the circuit of Fig. 6, to illuminate the lamps A, B, C and D fixed in the end wall of a goniometer type assembly, Fig. 5. The voltages across the various lamps are:- This results in the lamp luminosities rotating at angular spaced #. Two photo-cells X and Y are mounted on the rotating end of assembly 100 and are energized by the signal to be tested as shown in Fig. 7. The outputs of the two photo-cells therefore correspond to the product of the light falling on them from lamps A-D and their energizing voltage. The result is that the output at 178 indicates the angular deviation of the line X, Y from a datum, and also the required phase difference, and can be used to energize a motor rotating the mount of cells X and Y until said output falls to zero. The required amount of rotation represents #. Figs. 8 and 9 illustrate a more elaborate version in which light reflected by diffuse double side reflector 111 from lamps A-D on to fixed photo-multipliers X and Y varies with the angular position of the lamps as determined by motor 109. For r.f. signals the lamp illumination will not follow the applied signal but illuminates at a level indicative of the average level of the applied signal. To use this property the arrangements of Figs. 5, 8 and 9 may be used with the circuits shown in Figs. 10 and 11.
Patent GB-232739-A (GB)
Title: Improvements in or relating to push cars and like vehicles
IPC: B62B7/10
Filed: 1924-03-11
Abstract: 232,739. Ball, W. H. March 11, 1924. Supports.-In a folding baby carriage of thekind retained in its extended position by meansof a single locking member, the locking memberis provided with one or more supports or struts 14 to enable the folded carriage to stand upright.
Patent GB-722730-A (GB)
Title: Improvements in or relating to apparatus for feeding cut tobacco
IPC: A24C5/39
Filed: 1952-03-11
Abstract: 722,730. Feeding tobacco. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. April 10, 1953 [March 11, 1952 ; Feb. 24, 1953], Nos. 6294/52 and 5158/53. Class 130. The mechanism of Specification 520,178 for spreading cut tobacco evenly over the surface of a carded roller 3 or other endless conveyer and removing surplus tobacco therefrom is modified in that the reciprocating spreader is a member 7 carrying rounded or' otherwise blunt fingers 5 directed against the advancing tobacco on the roller 3, and in that, to ensure that no tobacco reaches the bases of the fingers 5 without being acted on by the fingers, the speed and stroke of the member 7, the surface speed of the roller 3 and the finger lengths are so correlated that, during the time taken for any given point on the roller surface to move from the tip to the base of a finger, the member executes at least one complete reciprocation and at least one finger (say four fingers) passes completely over such point in both directions of reciprocation. The member 7 is reciprocated from a driving eccentric linked to one arm of a bell-crank having its other arm slotted to take a slide block pivoted on the member. A rotating knurled roller 9 is also provided for lifting surplus tobacco over a swinging presser bar 11. The roller 9 may be cleaned by a reciprocating scraper 10 or, according to the first Provisional Specification, leather flaps on a roller'rotating counter to the roller 9. Dual rakes 150, 151 fast on a shaft rigid with a constrained arm 152 and rotatably mounted on the throw of a crankshaft 154 are also employed, and there are a tamper 16 and a trimming roller 14 as in Specification 520,178. The fingers 5 may have flat surfaces joined by curved surfaces as bv being of rectangular cross-section with rounded corners, but present no sharp edges of such a nature as would cut the tobacco ; as shown, they vary in cross-section from approximately circular at the tips to approximately elliptical at the bases. According to the second Provisional Specification the member 7 may be driven as in Specification 520,178, and according to the first Provisional Specification the fingers 5 extend deeply into the member 7 so that their bases are to the left of the centre of the roller 9. In both Provisional Specifications the scraper 10 is shown as tangential to the roller 9 and reciprocating at.right angles to the roller axis.
Patent GB-562228-A (GB)
Title: Improvements relating to collapsible tubes
IPC: B65D35/12
Filed: 1943-04-21
Abstract: 562,228. Collapsable tubes. OHRSTROM, V. T. April 21, 1943, No. 6367. [Class 66] Collapsable tubes made from thin sheet metal, preferably iron, in cylindrical form with an inside lap seam joint 2 are pressed cold to form a neck 3 which is then provided with a threaded part 4 either of tubular .form as shown, or consisting of wire wound into screw form, but in either case secured in place by coating with artificial resin, for instance phenol-formaldehyde resin solution, and subsequent baking at 180‹ C. The tubes are preferably lined with this material by similar treatment.