baber/WOPTO huggingface dataset:
Patent GB-1496056-A (GB)
Title: Photodegradable polymeric compositions
IPC: C08K5/09
Filed: 1975-07-02
Abstract: 1496056 Photodegradable compositions MONTEDISON SpA 2 July 1975 [3 July 1974] 27782/75 Heading C3P Photodegradable thermostable compositions comprise (a) a polymer comprising monomeric units -CR 1 R 2 CH 2 - where R 1  and R 2  are H, alkyl, aryl, cycloalkyl or chlorine; (b) a polymersoluble or colloidally dispersible compound of a transition metal of atomic number 21 to 30, 40 to 47 or 57 to 79; and (c) a compound where X 1  is H, chlorine, C 1-18  alkyl, C 1-21  alkylthio, alkoxy, aryloxy, alkylcarboxy, arylcarboxy or arylsulphonoxy, X 2  and X 3  are as X 1  or together constitute where Z 1  to Z 4  are as X 1 . Examples describe compositions comprising (a) polyethylene or polypropylene; (b) cobalt acetylacetonate, cobalt 2 - benzoyl - 5 - octoxyphenate, ferric naphthenate, ferric acetylacetonate and mixtures thereof; and (c) chloranil, 2-(2- benzoyl - 5 - octoxyphenoxy) - 3,5,6 - trichloroparaquinone, 2 - n - pentoxy - 3,5,6 - trichloroparaquinone, 2 - ethoxy - 3,5,6 - trichloroparaquinone, 2 - α - naphthoxy - 3,5,6 - trichloroparaquinone, 2 - pentachlorophenoxy - 3,5,6- trichloroparaquinone, 2 - p - toluenesulphonoxy - 3,5,6 - trichloroparaquinone, 2 - (2,5 - dit - butylphenoxy - 3,5,6 - trichloroparaquinone and 2 - n - dodecanethio - 3,5,6 - trichloroparaquinone, optionally with anthracene, tetramethylbenzene or pyrene as dispersant di-tbutyl p-cresol as stabilizer and titanium dioxide as pigment.
Patent GB-734294-A (GB)
Title: Improvements in or relating to pumping apparatus for use with boats
IPC: B63B13/00
Filed: 1952-11-05
Abstract: 734,294. Utilizing wave energy. WEBB, G. W., and WEBB, H. M. Nov. 4, 1953 [Nov. 5, 1952], No. 27792/52. Class 69 (1). [Also in Group XXVIII] A bilge &c. pump is actuated by the pitching and rolling movements of a boat by a pendulum attached to a rod 30 that carries a disc 29 engaging at its periphery a cup-shaped member 34 which is connected by a ring 27 to a rod 26 sliding in a guide 14. A flexible member 48 is attached by a ring 17 to the base 13 and is also gripped by the guide 14 and secured to a plate 20 carried by the rod 26. A spring 25 expands the space 19 formed within the flexible member and it is contracted by movements of the pendulum. Inlet and delivery valves 41 are provided. The pump may be attached to a thwart of the boat by a clamp.
Patent GB-384735-A (GB)
Title: Improvements in deck chairs
IPC: A47C4/40
Filed: 1931-10-07
Abstract: 384,735. Deck-chairs. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, Manchester, and SAUNDERS, A. W., 2, Town Green, Wymondham, Norfolk. Oct. 7, 1931, No. 27822. [Class 52 (ii).] The rack of an adjustable deck-chair, instead of being cut into the wood of the seat-supporting frame b, is provided in the form of a metal attachment a having S-shaped teeth which provide U-shaped recesses to receive the end of the strut d and other U-shaped parts c to form obstructions to angular movement of the strut. When the metal rack a is formed as a casting, it may be provided with side flanges a<1> or studs a<2>.
Patent GB-904733-A (GB)
Title: Improvements in and relating to electric control systems
Inventor: BENNETT JAMES HOLMES
IPC: B65H23/198
Filed: 1957-09-03
Abstract: 904,733. Electric correspondence control systems. ENGLISH ELECTRIC CO. Ltd. Sept. 3, 1958 [Sept. 3, 1957], No. 27828/57. Class 40 (1). In a system for uncoiling strip from a reel, the drive motor decelerating and braking circuits are energized automatically by relays controlled jointly by signals representing the number of turns left on the reel, as measured by a circular potentiometer geared to the reel, and the square of the strip speed, as measured by tachogenerators. As shown (Fig. 1), cold strip material 10 is drawn off a reel 11 at constant speed by a motor (not shown). The reel 11 is directly coupled to a tachogenerator 15, and through gears 16 and clutch 17 to the slider 18a of a circular potentiometer 18, the clutch 17 being energized only while the strip is in tension. The gear 16 is such that as reel 11 is uncoiled at constant strip speed, the slider 18a makes a large number of revolutions, but only in the last revolution does a cam switch 31, geared down from the slider, allow energization of deceleration and stopping circuits. The voltage tapped off by the potentiometer slider 18a is fed to two relay windings in series. The first winding 23a lights a lamp 28 and prepares the circuit for an automatic stopping relay 24. The second winding 22a controls relay 22 jointly with winding 22b fed with a signal from cascade connected tachogenerators 30, 15, and therefore substantially proportional to the square of the strip speed; relay 22 when energized lights a lamp 27 and prepares the circuit for an automatic deceleration initiating relay 25. The relationship between the angular position of slider 18a and the end of the strip 10 is established when the reel 11 is being wound. At the start of a coiling operation the strip 10 is slack and clutch 17 is unenergized, and a motor 21, or a pendulum (Fig. 2, not shown), automatically resets slider 18a to position A. The strip 10 is anchored to the reel and a number of anchoring turns are wound on until the required tension is relieved and slider 18a is coupled to the reel by clutch 17. Thus, at the end of the uncoiling operation, when the slider 18a is at position A, the reel 11 only carries the anchoring turns. During the last revolution of the potentiometer slider, the cam switch 31 is operated when the slider is at position Y. If the strip is travelling at normal speed, the additional energization of relay 22 obtained when the slider is at X is sufficient to produce energization of relay 25, whilst the stop relays 23, 24 are energized at position B.
Patent GB-1145267-A (GB)
Title: Improvements in or relating to short circuiting plungers for high frequency lines
Inventor: MOORSHEAD GEOFFREY EDWARD
IPC: H01P1/28
Filed: 1965-07-01
Abstract: 1,145,267. Tuning plungers. ELECTRIC & MUSICAL INDUSTRIES Ltd. 30 June, 1966 [1 July, 1965], No. 27860/65. Heading H1W.  A short-circuiting device for a transmission line or waveguide comprises a piston 1 and a choke 4, the dimensions of the choke being such that a low impedance appears across the line at the front face of the choke and a high impedance at the face of the plunger 3. Near the latter point contact means 8, e.g. conductive balls, are arranged within recesses 6 which also house helical or other springs 7.
Patent GB-961637-A (GB)
Title: Inorganic sheet and method for its manufacture
IPC: D21H23/00
Filed: 1962-07-19
Abstract: A method of forming an inorganic sheet comprises the steps of preparing a homogeneous aqueous slurry of inorganic particles and colloidal silica, feeding said slurry and a colloidal solution of a cationic agent simultaneously to the headbox of a paper machine and depositing the headbox mixture upon the screen of the paper machine. The inorganic particles may be of fibre or flake form or combinations thereof and may be selected from the class consisting of glass, quartz, ceramic material, mineral wool and mica flakes. The inorganic particles are present in the sheet product in quantities ranging from 70% to 98% and the silica, which is uniformly distributed through the sheet upon the surfaces of the inorganic particles, in quantities from 2 to 30% by weight.  A minor amount of cationic agent which is preferably an amine modified starch appears in the final product though it may be added to the headbox in quantities ranging from 0.5% to 10% of the solids content of the headbox slurry. The pH of the headbox mixture is maintained between 2.7 and 6.0 by the addition either directly to the headbox or to the solution of cationic agent of a suitable acid salt such as potassium aluminium sulphate or mineral acid such as hydrochloric acid.  Where the inorganic particles comprise mica flakes, however, the pH is preferably within the range 6.5 to 8.0. In Example 7 54.1% by weight of activated carbon is included as a filler together with microglass fibre. Specification 961,636 is referred to.ALSO:A method of forming an inorganic sheet comprises the steps of preparing a homogeneous aqueous slurry of inorganic particles and colloidal silica, feeding said slurry and a colloidal solution of a cationic agent simultaneously to the headbox of a paper machine and depositing the headbox mixture upon the screen of the paper machine.  The inorganic particles may be of fibre or flake form or combinations thereof and may be selected from the class consisting of glass, quartz, ceramic material, mineral wool and mica flakes. The inorganic particles are present in the sheet product in quantities ranging from 70% to 98% and the silica, which is uniformly distributed through the sheet upon the surface of the inorganic particles, in quantities from 2 to 30% by weight.  A minor amount of cationic agent which is preferably an amine modified starch appears in the final product though it may be added to the headbox in quantities ranging from 0.5% to 10% of the solids content of the headbox slurry.  The pH of the headbox mixture is maintained between 2.7 and 6.0 by the addition either directly to the headbox or to the solution of cationic agent of a suitable acid salt such as potassium aluminium sulphate or mineral acid such as hydrochloric acid.  Where the inorganic particles comprise mica flakes, however, the pH is preferably within the range 6.5 to 8.0. In Example 7 54.1% by weight of activated carbon is included as a filler together with microglass fibre. Specification 961,636 is referred to.
Patent GB-648700-A (GB)
Title: Improvements in or relating to fluid motors
IPC: F15B15/20
Filed: 1947-10-17
Abstract: 648,700. Pneumatic single-stroke apparatus. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Oct. 17, 1947, No. 27899. Convention date, Oct. 3, 1945. [Class 8(ii)] [Also in Groups XXVI and XXIX] In a pneumatic apparatus comprising a cylinder 2, a piston 4 reciprocable therein, a source of pressure gas in continuous communication with one end 24 of the cylinder and the corresponding face of the piston and valve means actuated by the piston to reverse the direction of and to adjust the length of strokes of the piston (see also Group XXVI), a single upward or downward stroke of the piston is effected by mechanically stopping the piston at the end of its stroke by the valve actuating means 5 and 6, operatively connected to the piston rod 28, contacting stop pins 16 and 17 respectively attached to the cylinder. In the position shown the pressure gas is supplied through a connection 22 and a passage 23 to the cylinder space 24 above the piston, to a valve chamber 25, and to the cylinder space 21 above the piston through a needle valve 19 a chamber 26 and a passage 27. Due to the differential areas of the piston 4 it moves up until the collar 6 contacts the pin 17. To reverse, a handle 45 is depressed and a lower fork arm 13 lifts a valve 11 which allows pressure gas to pass to a space 31 behind a piston valve 7 and move it to the right thereby opening the space 21 below the piston to atmosphere via a needle valve 20; the piston then moves down until the collar 5 contacts the pin 16. To re-position the apparatus for another upward stroke the handle 45 is lifted thereby opening a valve 10 by means of an upper fork arm 12 and allowing pressure gas to pass to a space 38 behind the other end of the piston valve 7 and return it to its original position. The length of the upward stroke of the piston may be varied by adjusting the collar 6 axially on the rod 42. The piston valve is magnetically maintained in its extreme positions, the spaces 31 and 38 between it and its cylinder ends being normally open to atmosphere through passages 30, 37 and ports 32, 39 in valves 10 and 11 respectively.
Patent GB-535707-A (GB)
Title: Improvements in or relating to antenna for transmitting short radio waves
IPC: H01Q21/10
Filed: 1939-10-14
Abstract: 535,707. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct 14, 1939, No. 27932. Convention date, Oct. 15, 1938. [Class 40 (v)] A short-wave aerial for radiating vertically-polarized waves of uniform field-strength in an horizontal plane consists of a series 1 ... 4 of overlapping tapered half-wave tubes arranged co-axially about a common vertical axis 5 and energized in parallel from a feed-line TL. The comparatively-large diameter of the tubes gives the aerial a broad frequency-response. Each dipole is conductively connected at 6 to the supporting mast 5. The whole series is held in alignment by metallic rings 10 which are spaced so as to give maximum impedance between the upper and lower ends of each radiator, and also between the lower end of each radiator and the supporting mast. The transmission line is split into two main branches 11, 12 which are again sub-divided at 13 ... 16. The outer sheath of each branch-line is connected to the mast 5, whilst the centre conductor is attached at 18 to each of the radiators. The dipoles may be aligned in an horizontal instead of a vertical plane.
Patent GB-350849-A (GB)
Title: Improvements in high draft mechanisms provided with endless belts, for textile slivers
IPC: D01H5/26
Filed: 1930-09-18
Abstract: 350,849. Drawing-apparatus f o r fibrous material. CASABLANCAS, F., 39, Montserrat, Sabadell, Barcelona, Spain. Sept. 18, 1930, No. 27949. Convention date, Sept. 28, 1929. [Class 120 (ii).] In high draft apparatus provided with endless belts the rollers which carry the belts are geared together by wheels 11, 21 so that the movement of the upper roller is effected positively instead of frictionally by means of the belts, whereby the pressure between the rollers may be reduced to a minimum. In the arrangement shown the invention is applied to a drawing-frame, a preliminary draft being effected between the rollers 13, 14, so that the belts act as guides or retainers for the sliver. The guide-plates 63 for the belt are bolted to stout foundation plates 62 connected by a cross bar 61. In a drawing-frame, the ends 22 of spindles of the upper rollers are carried in bushes 5 provided with flats 52 for engagement with the supports and with necks 51 on which are fitted the pressure bars. In a slubbing-frame, the upper rollers carry endless belts at each end, the wheels are mounted on the central neck and the weight rod is forked to straddle them.
Patent GB-898894-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: G21C7/12
Filed: 1957-09-04
Abstract: 898,894. Reactor control rods. BABCOCK & WILCOX Ltd. Sept. 4, 1958 [Sept. 4, 1957] No. 27962/57. Class 39(4). A reactor safety rod can be driven into the shut-down position and held there despite tilting of the reactor and other disturbances. A control rod 20 is suspended by a cable in a pipe which extends through the pressure vessel 24 and concrete shield 23 and contains a shield plug 29 and electric winding gear 30. A source of gas pressure, e.g. a bottle of CO 2 , is connected to the pipe through a valve 44. The rod and cable are joined by two pistons 39, 41 connected by a toggle linkage 40. Each toggle has an upper link 47 and a lower link 48 with a roller 49 at their junction; the lower link projects beyond the roller. There is an adjustable stop between the pistons and an abutment 55 to prevent the toggles from straightening completely. The pipe has a shoulder 45 to stop the lower piston and a recess 46 to engage the toggles in the shutdown position. If the gravity-driven safety drop fails, e.g. through tilting of the reactor in a ship, gas pressure is used to blow the rod into position. At the end of the rod's travel the pistons are forced together and the toggles buckle into the recess to lock the rod in place. The reactor is graphite moderated and CO 2  cooled. Specification 837,785 is referred to.
Patent GB-904050-A (GB)
Title: Improvements relating to apparatus for subjecting objects to high pressures
IPC: B01J3/04
Filed: 1960-08-12
Abstract: <PICT:0904050/III/1> <PICT:0904050/III/2> In high pressure apparatus wherein a plurality of inwardly movable pressure-multiplying anvils (21, 22, 23, 24) are arranged around and define a space (11) for an object to be compressed, an anvil retaining structure (50) is provided having an inclined surface (51) in contact with the rear faces of all except one of said anvils, the arrangement being such that when pressure is applied to the unique anvil (21), the remaining anvils are forced inwardly to compress said object by wedge action. The numerals refer to Figs. 2 and 6 which illustrate an embodiment wherein a tetrahedral object is to be compressed.  The anvils are arranged in an anvil receiving block 15 which may be made of an insulator such as methyl acrylate resin and each comprises a hard end piece 25, e.g. of tungsten carbide, of smaller cross-section than a pressure disc 27.  The rear surface of the latter is machined to have a curvature corresponding to that of the area of the retaining ring surface 51 which is contacted when the object, and its enclosing pyrophillite block 11, is removed.  The hard end pieces are supported by bearing rings 26 (Fig. 2, for anvil 23) and 68 (Fig. 6, for anvil 21).  The anvils may be locked in position when desired by set screws 35 (Fig. 2) and 65 (Fig. 6). The assembly described is placed between bolsters 52, 60 attached between plates 54, 61 respectively of a hydraulic press and located therebetween by means of stem 40 and pins 41, 42, 43 projecting into corresponding bores in the bolsters.  The upper bolster bears directly on the upper plane face of anvil 21. Friction at the surface 51 is overcome by the use of polytetrafluoroethylene sheets such as 70, 71 and by making the inclination of surface 51 slightly steeper than that of a surface perpendicular to the face of the tetrahedral pyrophillite block. Alternative lubricants are oil, graphite, molybdenum disulphide, lead or indium foil sheets coated with a lubricant, e.g. glycerine and graphite.  The block 15 may be omitted if desired and replaced by nylon buttons inserted in the caps between the chamfered faces of the four anvils.  Specification 847,067 is referred to.
Patent GB-503184-A (GB)
Title: Improvements in preparations for softening or cleaning paint, french polish, varnish and the like
IPC: C09D9/00
Filed: 1938-09-27
Abstract: 503,184. Removing paint. MACDONALD, A. Sept. 27, 1938, No. 28067. [Classes 91 and 95] A preparation for softening or cleaning paint, french polish, varnish, or the like, is prepared from washing soda, borax, bicarbonate of soda, quick lime, soap, paraffin oil and water. The washing soda is dissolved in water, the solution heated to boiling and the bicarbonate of soda and borax then added. Camphor or other aroma producing substance may be added at this stage. , This liquid is then poured upon the quick lime, and the mixture allowed to settle. The liquid portion is decanted, the soap and paraffin oil added to the residue, and the resulting mass boiled until a uniform paste is obtained.
Patent GB-486720-A (GB)
Title: Improvements in auxiliary air admission devices for internal combustion engines
IPC: F02M23/08
Filed: 1937-10-15
Abstract: 486,720. Auxiliary change admission devices. TRUBSHAWE, C. W. Oct. 15, 1937, No. 28090. [Class 7 (ii)] Auxiliary air is admitted to the induction pipe through a pipe 5 containing a cut-off valve 13 when the engine suction is sufficient to draw air through a tube 10 dipping into water or other liquid in a tank 6. The level of the liquid is determined by a stoppered filling tube 11 located at a substantial depth below the top of the tank.
Patent GB-1040554-A (GB)
Title: The manufacture of 3-keto-19-alkyl-steroids
IPC: A61K31/568
Filed: 1964-07-09
Abstract: The invention comprises (a) compounds of formula <FORM:1040554/C2/1> wherein R2 is a C1- 4 alkyl group, R3 is a free, etherified or esterified hydroxy group, an acetyl group or a group -COCH2R1, wherein R1 is a free, etherified or esterified hydroxy group, and R4 is a hydrogen atom or a methyl or ethyl group, or R3 and R4 in combination form a keto group, and (b) a process for preparing compounds of formula <FORM:1040554/C2/2> and their D 4- and D 1,4-derivatives by reaction of a compound of formula <FORM:1040554/C2/3> wherein R4 is one of R4 or a vinyl or ethynyl group, or a 5,6-dehydro derivative thereof, with a triaryl-(R2-CH = ) phosphorane to form the corresponding 19-alkylidene steroid, hydrogenating the double bond or bonds and hydrolysing any 3-ether or ester, in any sequence, to give a 3-hydroxy-19-alkyl-steroid of the invention, and oxidizing this to the corresponding 3-keto-19-alkyl compound, followed, if desired, by conversion to a D 4- or D 1,4-dehydro-derivative by (a) treatment with a substituted quinone or (b) bromination in the 2- and/or 4-position followed by dehydrobromination.  17- and 20-keto groups may be protected by ketalization.
Patent GB-974992-A (GB)
IPC: B29B13/10
Filed: 1963-07-18
Abstract: 974,992. Pulverizing. H. A. MERGES, [trading as CONDUX-WERK HERBERT A. MERGES K.G.]. July 18, 1963 [July 21, 1962], No. 28458/63. Heading B2A. A method of pulverizing plastic material, such as synthetic and natural rubbers, in a mill comprises introducing the material which has been conventionally reduced to a grain size of 3-6 mm. into a gas stream, the volume of which is controlled by a temperature-sensing element in the mill in such a manner that the material which is fed into the mill at room temperature is pulverized by being passed with the gas through a screening element at a temperature in degrees centigrade equal to approximately one half that at which the material becomes soft. In apparatus for carrying out the method, the mill has a rotor carrying circumferentially-spaced blade elements 5 which co-operate with a screening element 11 having a saw-tooth shape formed with holes 12. The blade elements are secured to the rotor by cover plates 7 and may have flat or inclined outer surfaces. The casing for the rotor and screening element has a cover plate 22 formed with a hopper 15 for the material and further air openings 23 having orifice plates 24 controlled by a servomotor 25. A temperaturesensing element 16 mounted on the screening element controls the servomotor and/or a device 17 for feeding the material to the hopper so that the material being pulverized is maintained at the correct temperature. The Specification also refers to a device stated to be known in which a vane wheel is disposed between a pair of truncated cones, one of which rotates in the opposite direction to the vane wheel, and the material is pulverized in the presence of liquid nitrogen which maintains the material brittle.
Patent GB-1155973-A (GB)
Title: Spiroacetal Diamine Derivatives and their use as Curing Agents for Epoxy Resins
IPC: C07D493/10
Filed: 1966-06-24
Abstract: 1,155,973. Spiroacetal diamine derivatives. AJINOMOTO CO. Inc. 24 June, 1966 [26 June, 1965; 9 Feb., 1966], No. 28484/66. Heading C2C. [Also in Division C3] A viscous reaction product is obtained by reacting a spiroacetal diamine of the formula wherein R is hydrogen, methyl or ethyl and R 1  is a straight- or branched-chain C 1-6  alkylene residue, with acrylonitrile, an alkyl or aryl glycidyl ether, a glycidyl ester, an alkylene oxide, an alicyclic monoepoxide, an epoxidized vegetable oil fatty acid or 3,4-epoxy-6-methylcyclohexylmethyl - 31,4<SP>1</SP> - epoxy - 6<SP>1 </SP>- methylcyclohexyl carboxylate. The reaction may be effected by heating (e.g. at 20-150‹ C.), optionally in the presence of organic solvents; preferably more than 0À25 mole of the spiroacetal diamine are employed per oxirane group of the epoxide, and the spiroacetal diamine and the acrylonitrile may be reacted in a molar ratio of 0À25: 1 to 10 : 1. In examples, epoxide starting materials employed are phenyl-, allyl- and butyl-glycidyl ethers and 3,4-epoxy-6- methyl cyclohexylmethyl - 3<SP>1</SP>,4<SP>1</SP> - epoxy - 6<SP>1</SP>- methyl-cyclohexyl carboxylate as well as other acyl glycidyl ethers and glycidyl esters.