baber/WOPTO huggingface dataset:
Patent GB-765585-A (GB)
Title: Polymers
IPC: C08F220/46
Filed: 1954-07-27
Abstract: Copolymers are prepared by copolymerizing acrylonitrile, a vinyl aryl sulphonic acid or a water-soluble salt thereof and another ethylenically unsaturated monomer such as methyl acrylate and methacrylate, methacrylamide, N-tert.-butylacrylamide, methylene bisacrylamide, acrylic acid, acrylyl chloride, methacrylonitrile, butadiene, chloroprene, methyl vinyl ketone, vinyl and vinylidene chlorides, divinyl benzene and other monomers described in Specification 586,881, [Group IV].  The preferred vinyl aryl sulphonic monomer is potassium vinyl benzenesulphonate, but others are specified in which the aromatic nucleus is substituted by methyl, ethyl, isopropyl, sec.-butyl, tert.-butyl and cyclohexyl groups.  In addition to the potassium salts the sodium, lithium, ammonium, and triethanolamine salts of the acids may be used.  In an example polymerization is carried out continuously in an aqueous medium employing potassium persulphate as catalyst and sodium metabisulphite as activator. The copolymers are used in the preparation of fibres, for which purpose they preferably contain 70 per cent or more of acrylonitrile.  The fibres are dyeable with acid, basic and dispersed dyestuffs.  The copolymers may also be used as soil conditioners.  In comparative experiments the preparation and use of copolymers of acrylonitrile and potassium vinyl benzenesulphonate is described.ALSO:Potassium vinyl benzenesulphonate is prepared by sulphonating beta-phenylethyl bromide with chlorsulphonic acid and, after neutralization with potassium carbonate, isolating potassium beta-bromoethyl benzenesulphonate which is then dehydrohalogenated with potassium hydroxide to yield potassium vinyl benzenesulphonate. The intermediate and final products are characterized by the melting points of their S-benzylthiouronium salts.  Specification 586,881, [Group IV], is referred to.
Patent GB-1055297-A (GB)
Title: Improvements in or relating to calculating and accounting machines
IPC: G06C21/04
Filed: 1964-05-27
Abstract: 1,055,297. Calculating apparatus. OLYMPIA WERKE A.G. May 27, 1964 [June 20, 1963], No. 21902/64. Heading G4B. Keys for determining function operations in a calculating machine rock a stepped plate 4 (Fig. 1) on a pivot 5 such that an abutment 11 on a setting member 10 registers with a step 9 and cams 14 coact with control slides 15, 16, 17 which operate the output, input and direction of rotation of the counter register respectively. Depression of a key operates switch 8 of the main drive to remove abutment 13 and permit the setting member 10 to move under action of a spring 12. In order to override the negative direction of rotation when a negative number is in the register a balance control member 18 operates a pivoted member 19 to cause a stop 20 to coact with a projection 21 and hold the control slide 17 above the recessed cam. In the " minus " operational position a contact arm 23 registers with a cam 22 to prevent the stop 20 coacting with projection 21. A printing control for the function symbols is effected by a control lever 30 (Fig. 2, not shown) pivotal about a vertical axis 29 and extending through a recess 28 in the setting member 10. For negative "totals" and " subtotals " the control lever 30 is pushed into a lower recess 31 against action of a spring 33 by a portion 34 on the control slide 17.
Patent GB-939190-A (GB)
Title: Control mechanism for infinitely variable gear
IPC: F16H29/04
Filed: 1962-06-06
Abstract: 939,190. Ratchet gearing; variable throw cranks. F. RIEDL. June 6, 1962 [June 9, 1961], No. 21943/62. Classes 80 (2) and 80 (3). In a variable speed gear in which rotation of a disc 12, having selflocking scroll threads 10, 11 on the sides, relative to the driving shaft 1 effects control of the amplitude of oscillation of free-wheel clutches 20, 21 and of the position of a counterbalance weight 23, relative rotation of the disc to the driving shaft is provided by the selective engagement of three gears 34, 35, 36 with the shaft, the gears being of equal pitch diameters but differing in their numbers of teeth and all engaged with an idler gear 37 rotatably mounted on a shaft 38 rigid with the gear casing 2, one gear 34 being rigid with the disc 12. Plates 16, 17 engage through complementary scrolls to rotate with the disc 12 and to drive the friction ratchets 20, 22, geared to the output shaft 20, and to carry the balance weight 23. The disc 12 is frictionally held to a cup-shaped member 9 by a spring- loaded ring 13 to allow slip on overload through prolonged engagement of the speed-changing dog clutch 43 with either gear 35 or 36.
Patent GB-1222561-A (GB)
Title: Coagulant for treating aqueous medium
IPC: C01F7/57
Filed: 1968-05-09
Abstract: 1,222,561. Basic salt coagulants. TAKI FERTILIZER MFG. CO. Ltd. 9 May, 1968 [9 May, 1967], No. 22139/68. Headings C1A and C1C. A basic metal salt coagulant for turbid aqueous media has the general formula where M is a trivalent metal, e.g. Al, Fe, Cr, X is chloride, nitrate or acetate ion and 3n >m, into which a multivalent anion Y is chemically introduced such that the molar ratio Y/M > 0.015 but insufficient to impair the stability of the basic salt. Y may be SO 4 , PO 4 , CrO 4 , Cr 2 O 7 , C 2 O 4 , citrate, fumarate, succinate, malonate, sulphonate, silicate or PO 4  plus SO 4 . The coagulant may be prepared (i) by adding Y in acid or salt form to the basic salt of the above formula; (ii) adding a normal salt of the metal containing chloride, nitrate or acetate ion and a sulphate ion to the carbonate, oxide or hydroxide of calcium or barium and separating the insoluble calcium or barium sulphate from the solution; or (iii) by dissolving M in HCl or HNO 3  in the presence of Y such that the molar ratio Y/M >0À015. The coagulating agent may be added to an aqueous suspension of matter to be coagulated in an amount of from 1 to 10,000 p.p.m. (calculated as metal oxide) and at a pH from 4 to 10.
Patent GB-168751-A (GB)
Title: Improvements in the control of spring motors and the like
IPC: F03G1/00
Filed: 1920-07-24
Abstract: 168,751. Haworth, J. P. July 24, 1920- Spring power-storing mechanism.-A winding indicator for springs, of the kind in which a pointer shaft is controlled by a pinion which rolls between two wheels, one being geared to the spring barrel and the other to the spring shaft, is intended for use with gramophones &c. and comprises two wheels d geared to the spring elements by means of shafts i having at one end a worm h to operate the wheel d and at the other end a spur gear wherewith to receive motion from the spring or springs, the indicator elements being either fitted in a separate frame n or arranged between the pillar plates of the motor. The indicating hand c is mounted on or driven 'by the spindle b which receives its motion from the arm a having mounted thereon a pinion c gearing with the wheels d. In a double or compound spring motor, the shafts i are geared to different spring barrels.
Patent GB-586867-A (GB)
Title: Improvements in or relating to electric-motor jacks or the like
IPC: B66F13/00
Filed: 1944-11-10
Abstract: 586,867. Worm gearing. WESTLAND AIRCRAFT, Ltd., and SWAFFIELD, P. J. Nov. 10, 1944, No. 22184. [Class 80 (i)] [Also in Groups XXX, XXXIII and XXXV] A jack or like apparatus in which a reversible electric motor is connected through gearing to a reciprocating member has means for mechanically disengaging the motor and coupling up an additional motor instead. In the form shown, the main motor engages a dogclutch drive to a gear train 9, 8, 12, 10 which operates a screwed plunger at 11. On failure of this motor a solenoid and plunger acting on rod 7 or other means such as a half-bearing acting on the spindle 14 by spring pressure draws worm gear 2 into mesh with gear 8 against the action of spring 6 and the dog-clutch is disengaged. The small additional motor 1 then operates the gearing with an efficiency low enough to prevent run-back. An electrical means may be employed to give the change-over sequence including the reduction of the torque of the additional motor by resistance means during engagement of the worm.
Patent GB-625740-A (GB)
Title: Improvements in and relating to control systems for direct current motors
IPC: H02P1/18
Filed: 1946-07-25
Abstract: 625,740. Exciting dynamos. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. July 25, 1946, No. 22189. [Class 35] [Also in Group XXXVII] A multi-polar shunt or compound wound direct-current constant-speed generator has a wave-wound armature 1, and the shunt field winding is divided into two sections, one section, 3a, being wound on a certain number of poles only, and the other section on the remainder of the poles. A series motor 4 is provided with field windings 5 and 6, adapted for forward and reverse operation respectively. Forward and reverse solenoid-operated switches, 9 and 11, are interposed between the motor and generator, the operating-coils, 10 and 12, of these switches being adapted to carry the generator shunt field current. One of the main switches, 9 or 11, is closed by the operation of four control switches, comprising the movable arms 13 and 16, and the contacts 14, 15 and 17, 18, respectively, according to whether forward or reverse, high or low speed operation is required, the closing of the generator shunt field circuit by one of the control switches causing the generator to self-excite at a high or low voltage according to whether the whole or a part of the generator field winding is in circuit. The control switches are shunted by resistors 19-22 having such values that the generator is de-excited at a rate, when a control switch is opened, such as to prevent a sudden interruption of the field current and to ensure that the main switch is not opened until the motor current has dropped to a value at which burning of the contacts is avoided. A brake coil 7 may be provided. The motor may adjust a variable-pitch propeller. Specification 587,657, [Group XXXVII], is referred to.
Patent GB-462463-A (GB)
Title: Improvements relating to pressure filters
IPC: B01D24/14
Filed: 1935-08-07
Abstract: 462,463. Filters. BROOK, E. P. Aug. 7, 1935, No. 22260. [Class 46] The filter bed b, Fig. 1, of sand, gravel, or the like is provided with a perforated ring pipe l near to the filter wall for supplying air under pressure to agitate the medium as well as with the usual network of perforated pipes e through which the filtrate is discharged and air and water supplied in reverse direction to agitate and cleanse the medium. The air may be supplied to the pipes l, e through valves n, i respectively from a pipe h. Fig. 4 shows a filter of rectangular plan with air supply pipes el, e<2> along either side.
Patent GB-1315465-A (GB)
Title: Method for fabricating flushable wrappers for absorbent pads and product obtained thereby
IPC: D06M15/333
Filed: 1971-04-19
Abstract: 1315465 Surgical dressings KIMBERLYCLARK CORP 19 April 1971 ]24 Feb 1970] 22276/71 Heading A5R [Also in Division D1] A flushable wrapper for a sanitary napkin, diaper, bandage or similar absorbent pad is obtained by preparing an aqueous solution of polyvinyl alcohol and a mixture of boric acid, water and sodium bicarbonate, adding the mixture to the solution, treating a non-woven web which is to form the wrapper with the solution and heating. The solution may contain a plasticizer for polyvinyl alcohol e.g. 2, 2'-oxydiethanol, polyethylene glycol, methoxy polyethylene glycol, polypropyleneglycol 1, 2-propanediol, glycerine, 1, 5-pentanediol and 1, 2, 6-hexanetriol. The webs treated may be of regenerated cellulose, natural cellulose and synthetic materials.
Patent GB-389375-A (GB)
Title: An improved machine for fastening together sheets of paper with adhesive material
IPC: B65B51/06
Filed: 1932-08-10
Abstract: 389,375. Adhesively binding sheets &c. PARKER, A., 4, Allenby Road, Papatoetoe, and PARSONS, G., 20, Monoghan Road, Mount Albert, both in Auckland, New Zealand. Aug. 10, 1932, No. 22407. Convention date, Aug. 22, 1931. [Class 73.] A machine for applying an adhesive strip over the edges of a number of sheets of paper, either loose or in packet or missive form, comprises means for feeding the strip from a roll to a moistening device and severing the end by a blade carried by a lever, the operation of which passes the sheets placed thereon, together with the severed end, between a pair of spring-mounted rollers to apply the strip round the edges of the sheets. The strip 13 is fed from a roll, under a guide roller 14, and over a feed roller 3 fitted with radial spikes on to which the strip is pressed by a spring finger. The strip is moistened by a wick 10 dipping into a container 8 and resting on a hinged tray 11 normally raised so as to hold the wick out of contact with the strip by ledges 31a formed on members depending from the lever 5. The latter carries a cross-member 20 to which a blade 24 is attached and also a support for the papers 7 comprising a face-plate 21 against which the papers are clamped by pivoted members 27 having a finger-piece 28. On depression of the lever 5 by operation of the member 28 the papers 7 are brought into contact with the end of the strip, previously separated by the blade 24, and passed, with the strip, between the spring-mounted rollers 18. On the return of the lever 5, effected by a spring 19, a spring pawl 33 thereon engages pins 32 on the feed roller to feed the strip, a locking spring pawl 34 being previously disengaged by a projection 33a on the pawl 33. The strip may pass between printing rollers.
Patent GB-522303-A (GB)
Title: Improvements in or relating to tripping devices for electric circuit breakers and switches
IPC: H01H71/44
Filed: 1939-06-08
Abstract: 522,303. Electrically - tripped switches. MARSTON, G. S., and STATTER & CO., Ltd., J. G. June, 8, 1939, No. 22458/38. [Class 38 (v)] The rod 3 which is adapted to strike the latch 4 of a switch after a time-delay when the solenoid 1 is energized, is fixed to the member 7 of the timedelay device and is acted upon by a spring 6 which is compressed when the hollow core 2 moves upwards. The member 7 as it moves upwards. turns an arm 9 about a pivot 10 and a nose 14 engages a member 12 pivoted to the segment 8 of a clockworkdevice having an escapement so that the member 8 rotates slowly till an arm 15 on the member 12 strikes an adjustable stop 19. The members 7 and 3 then move upward rapidly.
Patent GB-692613-A (GB)
Title: Improvements in or relating to motor cycle rear wheel suspensions
IPC: B62K25/28
Filed: 1949-08-30
Abstract: 692,613. Motor-cycle spring-suspensions. TANDON, D. D., TANDON MOTORS, Ltd., and WRIGHT, R. N. Aug. 30, 1950 [Aug. 30, 1949], No. 22548/49. Class 136 (iii) In a motor-cycle rear-wheel suspension the rear wheel fork 2 pivots in frictional contact with its support 6 on the engine frame and a short lever arm 3 provided integral with a transverse tube 2b connecting the arms 2a of the fork 2, the arm 3 acting on resilient means 8 when the wheel supporting member 2 is pivoted in the direction corresponding to upward movement of the rear wheel. A spindle 4 runs through the tube 26 and is secured to the engine frame by ears 6. Bearing bushes 5 hold the spindle 4 in spaced relationship to the tube 2b and are in frictional contact with the ears 6. The short arm 3 is pivotally secured to a fork-ended rod 7 which extends through a rubber block 8 secured to a plate 9 which is welded to the engine plates. The other end of the tube 8 is secured to a plate 10 which is adjustable on the rod 7 by a nut 11.
Patent GB-405991-A (GB)
Title: Improvements in moving coil loud speakers
IPC: H04R9/02
Filed: 1932-08-12
Abstract: 405,991. Loud-speakers. WHITELEY, A. H., Radio Works, Victoria Street, Mansfield, Nottingham. Aug. 12, 1932, No. 22630. [Class 40 (iv).] Relates to a permanent magnet structure of the M, claw or bar type for a moving- coil loud-speaker and consists in making the central cylindrical pole piece of higher retentivity than the remainder of the magnetic circuit. As shown, the structure comprises a U -shaped member 1 bent from a bar of soft iron across the ends of which is secured a soft iron outer pole-piece 2. The cylindrical centre pole 3 of permanently and highly magnetized material is secured at one end by a bolt 5 to the member 1, its reduced opposite end projecting into an aperture 6 in the plate 2.
Patent GB-1510218-A (GB)
Title: Production of impregnated sheet structures
IPC: C09K21/14
Filed: 1975-05-23
Abstract: 1510218 Flame retardant impregnated sheet structure DYNAMIT NOBEL AG 23 May 1975 [4 June 1974] 22739/75 Heading DIP [Also in Divisions B5 and C3] A process for the production of a fireretardant impregnated sheet structure for use in the production of a laminated structure comprises impregnating a woven or non- woven fibrous sheet structure with a phenolresol resin-containing impregnating solution and drying the impregnated sheet to further condense the resin, the resin being an ammonically condensed resin having a solids content of from 50 to 80% by weight and the following molecular weight distribution as determined by gel chromatography (expressed in % per unit area): dimers 20 to 26%, trimers and tetramers 6 to 12%, pentamers and higher oligomers 22 to 36%; the impregnating solution additionally containing hexamethylene tetramine in a quantity of from 1 to 15% by weight thereof, a plasticiser and a flame proofing agent. The sheet may be paper, a woven or non-woven synthetic fibre fabric or may be formed of glass fibres. Specified plasticisers are tributyl phosphate, tri-(2-ethyl-hexyl) phosphate, triphenyl phosphate, tricresyl phosphate and diphenyl cresyl phosphate; the exemplified flame-proofing agent being pentabromodiphenyl ether.
Patent GB-374689-A (GB)
Title: Improvements in and relating to steam and gas turbines
IPC: F01D9/04
Filed: 1931-08-12
Abstract: 374,689. Turbines. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Aug. 12, 1931, No. 22820. Convention date, Oct. 20, 1930. [Class 110 (iii).] The nozzle boxes of a steam or gas turbine are rigidly fixed to the casing at their nozzle side while at their inlet side they are connected so as to be movable relatively to the casing or are fixed in a flexibly yielding manner so that the nozzles 5 and the blades of the turbine wheel 1 remain in register in spite of changes due to temperature variations. The nozzle box 4 is formed at the nozzle end 5 with a cylindrical extension 10 which has a ridge to engage a groove 6 in the turbine casing 2, or vice versa, and is secured thereto by screws 8 ; the extension 10 is of a length to permit the insertion of the screws 8 without obstruction by the inlet pipe flange. The nozzle box shown in Fig. 4 is made flexibly yielding at the region 9 on its inlet side.
Patent GB-967329-A (GB)
Title: Improvements in rail-sleeper assemblies
IPC: E01B9/30
Filed: 1962-06-14
Abstract: 967,329. Securing railway rails; sleepers. CHRISTIANI & NIELSEN (SOUTH AFRICA) (PTY) Ltd. June 14, 1962 [June 22, 1961], No. 22835/62. Heading E1G. A railway rail 1 is secured to a concrete sleeper 2 by means of a spring clip 3 which bears against a rod 4 the ends of which are embedded in the sides of the recess 5 in the sleeper. The ends of arms 3a, 3b have notches 8a, 8b which engage upper and side faces of the rail flange and are located at different distances from the plane of symmetry of the clip to allow the distance between the rails to be altered by reversing the clips. An insulating member 11 may be located between the rod 4 and the clip or the rod may be covered with fibre glass reinforced plastics material. Rubber insulating pads 9a and 9b and distance pieces 10a, 10b may be provided. Reinforcing springs such as 7a are embedded in the concrete to form additional anchorage for the rod 4.
Patent GB-460505-A (GB)
Title: Improvements in or relating to roller mills
IPC: B02C4/42
Filed: 1936-08-20
Abstract: 460,505. Roller mills. MIAG MUHLENBAU UND INDUSTRIE AKT.-GES. Aug. 20, 1936, No. 22893. Convention date, April 8. [Class 59] In a double roller mill having four rollers working together in pairs, the driving members are wholly or partly arranged in the middle of the roller mill casing below the rollers. As shown in Fig. 2 each pair of crushing rollers 1, 2 and 3, 4 discharges into a separate outlet shoot having sides 6 and the drive shaft 13 and pulleys are housed in the dead-space between the outlet shoots. In Fig. 3 separate drive motors 14, 15 are housed between the shoot 7 and the casing.
Patent GB-1048583-A (GB)
Title: Improvements in or relating to telegraphy
Inventor: BOWSHER EDWARD ALBERT HENRY
IPC: H04L15/22
Filed: 1962-06-14
Abstract: 1,048,583. Telegraphy. PLESSEY CO. Ltd. Aug. 29, 1963 [June 14, 1962], No. 22896/62. Heading H4P. A telegraph message is made up by physically assembling in a straight line a number of plates, each carrying a visual character and the corresponding code, represented by notches. The notches are scanned, at constant speed, by mechanical, magnetic or photo-electric sensing means to provide the telegraph signal. Use of a multiplicity of scanners is mentioned for multifrequency parallel transmission.
Patent GB-839467-A (GB)
Title: Improvements in or relating to page printers for facsimile receivers
IPC: H04N1/36
Filed: 1956-07-27
Abstract: 839,467. Copying telegraphy. HELL, R. July 27, 1956 [July 28, 1955; July 29, 1955], No. 23298/56. Class 40 (3). In a facsimile page printer, received signals corresponding to line-by-line scanning of a picture at the transmitter actuate an electromagnetic recording-head 21 which co-operates with an inking wheel 23 to mark a moving endless band 6 of rubber or plastic, each recorded line of the picture being thereafter impressed on a transversely-moving web of paper 12 by the action of a printing bar 15 which is pressed against the band at the correct instants by means of an electromagnet 18. A rotating felt pad 25 erases the recorded signals before the band passes again under the recording head. The drive mechanism for the band 6 and paper feed is arranged so that the paper advances through a distance corresponding to the line spacing in the time taken for band 6 to move on by the length of a line. Electromagnet 18 is energized by the closure of contacts 33 actuated by a cam 31, and to ensure that the energization is effected at the correct instants in relation to the received signals (i.e. when the beginning of a recorded line has reached the right-hand end of printing-bar 15), the drive to cam 31 includes an electromechanically-operated slipping clutch mechanism 27, 28, 35, 47 which is released with the cam in the correct phase position by means of a start signal preceding the picture signal transmission. The start and picture signals occupy different amplitude ranges and are separated by amplitude discriminators 41, 43. The start signal operates a relay E, which operates the clutch mechanism by contact e2, and also starts the drive motor 1 by contact e1 which energizes relay R in a self-locking circuit. The arrangement necessitates complete synchronism between the transmitter and receiver drive motor. In a modification, Fig. 2 (not shown), the apparatus is arranged for start-stop working with the clutch actuated at the beginning of each line.