baber/WOPTO huggingface dataset:
Patent GB-712947-A (GB)
Title: 21-steroid ester and composition thereof
IPC: C07J5/00
Filed: 1952-06-13
Abstract: 11 - Desoxycorticosterone, 21 - b  - cyclopentyl propionate is prepared by reacting 11-Desoxycorticosterone with b -cyclopentyl propionyl chloride or bromide in the presence of a tertiary amine, e.g. pyridine or dimethylaniline.  Other methods for the esterification may be employed, e.g. the ester interchange of a lower alkyl ester of b -cyclo-pentyl propionic acid with 11-desoxy corticosterone, or azeotropic esterification using the b -cyclo-pentyl propionic acid in the presence of benzene or toluene and p-toluene sulphonic acid or boron trifluoride.  In examples: (1) 11-desoxy corticosterone in pyridine was treated at room temperature with b -cyclopentyl propionyl chloride, and the desired 11-desoxycorticosterone-21-b -cyclopentyl propionate isolated by solvent extraction.  Other examples relate to various therapeutic compositions incorporating the ester, which exhibit a prolonged adrenal cortical hormone-like action (see Group VI).ALSO:Therapeutic compositions having a prolonged adrenal cortical hormone-like action comprise 11-desoxy corticosterone-21-b -cyclopentyl propionate, (see Group IV(b)), in a non-toxic fluid vehicle, particularly vegetable oils, glycols, thixotropic gels or water.  In examples: (1) 17-desoxy corticosterone-21-b -cyclopentyl propionate is incorporated in cottonseed oil containing a trace of 4-chlorobutanol as preservative. Other oils mentioned are peanut, sesame and corn oil.  (2) The steroid, and dry aluminium monostearate, are dissolved in peanut oil to yield a thixotropic gel.  (3) The steroid is suspended in physiological saline containing a poly alkylene oxide derivative of a partial long-chain fatty acid ester of a polyhydric alcohol, yielding a microcrystalline suspension of the active substance.
Patent GB-1082127-A (GB)
Title: Preparation of perfluoroolefins
Inventor: FIELDING HAROLD CROSBIE
IPC: C07C17/281
Filed: 1965-04-08
Abstract: The invention comprises branched, internally unsaturated perfluoroolefins that are oligomers of tetrafluoroethylene having the empirical formula (C2F4)n where n is an integer of at leas 4.  The compounds are prepared by contacting tetrafluoroethylene under anhydrous conditions with at least one fluoride source selected from fluorides of K, Rb, Cs and quaternary ammonium radicals, acid fluorides of K, Rb and Cs, and fluorosalts of K, Rb and Cs that are sources of fluoride ions.  Examples describe compounds wherein n is 4, 5, 6 and 7, perfluorobutenes being formed as a by-product in Example 18. The oligomers may be oxidized by KMnO4 in acetone to give CF3H and CF3CF2COOH.
Patent GB-103973-A (GB)
Title: Improved Paraffin or Petroleum Carburetter for Internal Combustion Engines.
Inventor: ENNIS PATRICK JAMES
IPC: F02M21/10
Filed: 1916-10-21
Abstract: 103,973. Ennis, P. J. Oct. 21, 1916. Spray carburettors.-Paraffin from a float chamber K is supplied to a nozzle U, and petrol from a separate source to a nozzle P used at starting only. The nozzle outlets are controlled by a suction-actuated disk-valve V, which serves to deflect air entering through the base J of the carburettor, over the fuel jets. The mixture formed passes through a nest of vertical tubes Z, around which exhaust gases flow, and then through a conical portion Y of the induction pipe. The valve V is spring-loaded and slides over a spindle S, which carries a mixing-fan M, against the blades of which air is drawn through tangential passages in the casing. Air may also be admitted through ports in the base J controlled by a ported ring T.
Patent GB-971851-A (GB)
Title: Dust discharge valve
IPC: B65G53/46
Filed: 1963-04-17
Abstract: 971,851. Valves. BAHCO A.B. April 17, 1963 [April 19, 1962], No. 15082/63. Heading F2V. [Also in- Division B8] A flap valve for releasing dust from a separator against the action of a higher gas pressure, comprises a tube 2, Fig. 2, of elastic material shaped to form a flat elastically closed end, the valve passage being divided into two parallel passages 5, 5 by a sheet 4 of stiff material. The valve is enclosed in a casing 7 to which the sheet 4 is attached at its lower end by tongues 6, Fig. 1 (not shown).
Patent GB-604450-A (GB)
Title: Improvements in or relating to carbon sheet arrangements for use with continuous stationery
IPC: B41J17/00
Filed: 1945-06-14
Abstract: 604,450. Typewriters &c. RANDALL, J. W., and DICKINSON & CO., Ltd., J. June 14, 1945, No. 15098. [Class 100(iv)] [Also in Group XV] Carbon-sheet and web-guiding arrangements.-A combined carbon-sheet and web-guiding arrangement for a typewriter comprises a flexible web-smoothing sheet 1 having permanently or detachably secured at one end adjustable side guides 3 for the multiple web and at the other end means for securing carbon-sheet holders of different widths. The guiding means consists of U-shaped members 11 slidable on a base plate 9. The carbon sheets 5 are attached to transverse strips 6 secured in, the fold 7 of a holder 4 provided with a slot 8 for the sheets 5 and webs to pass through. The ends of the holder 4 has tabs 16 corresponding to tabs 6a on the strips 6 engaged beneath sliding clips 15 on the ends of a plate 13 secured to the sheet 1, the clips 15 permitting the replacement of one holder 4 by another of a different width. In place of the clips, press-button devices or a series of slots in the plate 13 engageable by tongues on the holders may be employed, or press-button devices may be provided on the clips. Specification 604,449 is referred to.
Patent GB-782166-A (GB)
Title: Decorative panels, shapes or articles produced by the application of wood veneers totransparent substances
IPC: B44C3/12
Filed: 1954-05-22
Abstract: 782,166. Laminated materials. SHELDON, A. May 9, 1955 [May 22, 1954], No. 15106/54. Class 140. [Also in Group X] A decorative panel, pane for a window or a building block comprises two sheets of transparent material between which there is held a picture, pattern or design composed of a set or number of component parts manufactured from natural grained wood veneers. The picture or design is first constructed from wood veneers by known methods and one side is covered with a paper backing. The other side of the picture or design is then fixed by a transparent adhesive to a sheet of transparent substance, preferably of thermoplastic material. The paper backing is then removed and the exposed picture or designs covered by a second sheet of transparent substance and is secured thereto by a transparent adhesive. The resulting panel may then be cut and shaped as desired and the edges sealed by a material such as mastic or bitumen. In a modification an aperture corresponding to the picture or design to be employed is cut in a sheet of transparent material of the same thickness, for example 1/64 of an inch, as the wood veneer of which the picture or design is made. The picture or design is placed in the aperture and the sheet of transparent material and the picture or design is secured between two sheets of transparent material as before. In another modification one of the two sheets of transparent material is recessed on one face to a depth and shape corresponding to the thickness and shape of the picture or design to be used. The picture or design is secured in the recess and the second sheet of transparent material then applied. In a further modification the wood veneers forming the picture or design and two sheets of a thermo-plastic substance are secured together by using the plasticity of the transparent material before it has set.
Patent GB-1128841-A (GB)
Title: Improvements in and relating to relay rack arrangements for control installations
Inventor: ROHRS GERD
IPC: H05K7/02
Filed: 1966-04-05
Abstract: 1,128,841. Rack-mounted electrical equipment. WERK FUR SIGNAL UND SICHERUNGSTECHNIK BERLIN VEB. 5 April, 1966, No. 15133/66. Heading H1R. In a relay rack arrangement containing a plurality of relay group assemblies, each assembly comprising a plurality of functionally interconnected relays or relay units, the assemblies are interconnected by plug-in connections, and power supply cables are connected to the assemblies by plug-in connections. Preferably, the plug connectors for the power supply cables differ structurally from those for the assembly interconnections. The plug connectors may be secured in place by screws, and may be provided with insulating body portions which, in the case of assembly connectors, may carry identification panels. The relays and relay units may be connected into the front of the assembly be means of distinctive bayonet connections, while the rear of the assembly receives the plug connectors and additional components such as transformers, capacitors, and resistors.
Patent GB-986880-A (GB)
Title: Hose connectors for hair drier caps
IPC: F16L37/096
Filed: 1962-03-29
Abstract: 986,880. Hose connectors. SUNBEAM CORPORATION. March 29, 1962 [April 6, 1961], No. 15146/64. Divided out of 972,867. Heading F2G. A hose connector for a hair drier cap 5 comprises a plastic collar 10 into which a plastic hose 9 extends and having a movable latch 37 thereon which is biased to a closed position when the collar is inserted into an apertured member 35, an integral portion 10<SP>1</SP> being formed on the collar for retaining the latch element in assembled position with respect to the collar. As shown, the portions 10<SP>1</SP> of reduced thickness permit inward flexing of the member 37 by finger pressure and the member 37 is returned to the locking position shown in Fig. 4 by the natural resiliency of the material of which the collar is made; the spiral reinforcing spring 41 of the hose 9 provides additional biasing force. A second catch 40 is integrally formed on the collar. In modifications, (a) opposite sides of the collar are formed with axially extending notches in which latch members 37 are disposed, and (b) the latch members have tabs 56, Fig. 8, engaged in grooves 57 and are biased radially outwardly by a U-shaped spring 58.
Patent GB-515061-A (GB)
Title: Improvements relating to door and like fastenings
IPC: E05B65/20
Filed: 1938-05-21
Abstract: 515,061. Latches. WILMOT-BREEDEN, Ltd., and SMYE, A. May 21, 1938, Nos. 15232 and 22316. [Class 44] A motor car door latch has a wedge shaped socket d into which a wedge-piece 8 on the doorpost enters when the door is shut. The wedgepiece is bored to receive a conical bolt pin h which is carried by a plate g slidingly mounted and spring-pressed upwards within the latch case a. The plate g is depressed to release the pin h from the wedge-piece and is held in that position by a spring-pressed trigger 18 which passes over the projection 16. When the door is slammed, the end of the wedge-piece removes the trigger and the bolt-pin, h is released. The plate g is depressed by either an inside handle wand cam r or by an outside handle and cam s. If the handle w is moved forwardly, a projection 3 moves a lever x to bring a heel 4 in the path of the cam s and thereby the outside handle is locked from operation.
Patent GB-625110-A (GB)
Title: Improvements in valves or stop cocks
IPC: F16K1/02
Filed: 1946-05-21
Abstract: 625,110. Valves. TOMPKINS & CO., Ltd., J., and TOMPKINS, A. E. May 21, 1946, No. 15279. [Class 135] In a valve of the kind comprising a body 1 with coaxial inlet and outlet orifices 2, 3 and a pistonlike valve head 13 cooperating with a valve seat 4 and guided in a pillar or extension 5 of the valve body which supports a screw-threaded valve operating stem 9, leakage around the stem is prevented or minimized by a concentric flange or sleeve 15 on the valve head telescopically engaging a deep annular recess 16 in the extension 5 to form a labyrinth or circuitous passage for the fluid. In the fully-open position a machined surface 17 on the valve head seals against the base 18 of the pillar 5. The valve head 13 is permanently secured to the stem 9 by a screwthreaded plug 22 which clamps a shoulder 20 against a flange 19 in the valve head. Lubricant is introduced into the chamber 16 by a radial hole 5a which may be closed by a grub-screw.
Patent GB-652798-A (GB)
Title: Improvements in small arms, particularly sporting guns
IPC: F41A21/48
Filed: 1948-06-08
Abstract: 652,798. Smallarms. ETABLISSEMENTS VERMOT-GAUD & CIE. June 8,1948, Nos. 15451 and 15452. Convention dates, June 18, 1947 and May 12, 1948. [Class 119] Relates to hand-operated sporting and like guns of the kind in which the breech is opened for loading by sliding the barrel block A longitudinally with respect to a striker block B fixed to the butt-stock E. According to the invention, the sole guiding means for the barrel is provided by two or more rods 1 on one block sliding in bores in the other block. The breech is locked in closed position by a transverse rotary bolt 3, Fig. 3 engaging arcuate grooves 6 in the rods. The bolt has arcuate recesses 5 which permit sliding of the rods 1 when the bolt is turned through 90 degrees to the position shown in Fig. 1. The bolt 3 may also have a cam or incline, Fig. 5, to effect, through a ball 9 and T-shaped bar 8, a cocking of the strikers 12 when the bolt is turned for unlocking. The striker block B is bolted to a plate D, Fig. 1, connected by wood screws to a flat face on the butt stock E. The rods 1 may be adjustably mounted on the barrel by screws and nuts.
Patent GB-258330-A (GB)
Title: Playing cards holder
IPC: A63F1/10
Filed: 1925-06-16
Abstract: 258,330. Pitcher, W. H. June 16, 1925. Addition to 236,860. No Patent granted (Sealing fee not paid). Holders, card.-The playing-card holder described in the parent Specification is provided with means such as finger-grips in combination with a button or the like on the connecting bolt of the discs whereby the card-gripping parts can be separated by the use of one hand only. In a. further modification knobs are provided on the discs to facilitate their rotation to display the cards. As shown in Fig. 1, finger-grips 10 are provided on one disc 2, and the central bolt 5 having a spring 7 beneath its head 6 is secured to the other disc 1. By placing the first and second fingers of one hand in the grips 10 and pressing on the head 6 with the thumb the discs may be opened for insertion of the cards. In a modification, Fig. 3, finger-grips are provided on both discs, and the central bolt is telescopic so that the discs may be opened by pressure from either side of the holder. In a further modification, Fig. 8, knobs 17 are provided for rotating the discs to display the cards, and a central bolt 16 unites the discs, sufficient resilience being provided by the rubber facings 3, 4 to permit insertion of the cards.
Patent GB-481240-A (GB)
Title: Torque indicator
IPC: G01L3/14
Filed: 1937-06-04
Abstract: 481,240. Dynamometer rotarytransmission. SARAZIN, R. R. R. June 4, 1937, No. 15574. Convention date, March 15. [Class 106 (ii)] [Also in Group XXIV] Comprises apparatus in which the torque is resisted by a centrifugal force and is given by the formula k#<2>sin# when k is a constant, # the speed of rotation and # the angle the centrifugal force makes with its position of equilibrum. The driving shaft 3 carries a disc 1 carrying a plurality of shaft elements 6 parallel to the common axis of the driving and driven shafts 3, 4. Upon the elements 6 are mounted toothed sectors. 7 forming parts of levers 8 carrying masses 5, the sectors gearing with a toothed wheel 2 on the shaft 4. When no torque is transmitted the levers assume radial positions under the centrifugal force of the masses, but a torque being transmitted they resist the torque and take up a position at an angle to this. To indicate the torque a brush 9 oscillating with one of the arms 8 moves over a resistance 10 which is connected with resistances 11, 12 and then with resistances 13, 14 as shown in Fig. 3. The brush 9 is earthed and also the resistance 12. The common point 15 of resistances 13, 14 is connected to a ring 16 carried by either shaft 3, 4 one end of resistance 11 being connected to a second ring 17 carried by either shaft. Current from a generator 23 driven from the engine of shaft 3 and the terminal of which is earthed is supplied to an instrument the fixed coil 20 of which is earthed and the moving coil 21 in one with pointer 22 of which is connected to ring 19 and earthed. The position taken up by the pointer depends on the one hand to the speed of the dynamo that is to " # " and on the other hand to # sin y that is to #<2> sin# and thus is proportional to the torque. The resistances 11 to 14 are mounted in a casing on the disc 1 and in the case of a propeller, in the boss of the latter.
Patent GB-595100-A (GB)
Title: A new or improved float-actuated valve
IPC: F16K31/26
Filed: 1945-06-20
Abstract: 595,100. Float-actuated valves. ABEY, E. L. June 20, 1945, No. 15714. [Class 135] A float-actuated cistern supply valve comprises a body 1 formed with a cylindrical chamber 18 having an inlet orifice controlled by a conical rubber closure member 15, and merged with a bell-shaped skirt. The closure member is secured in the head 13 of a plunger having a clearance between it and the chamber to form an outlet therefrom of cross-sectional area less than that of the orifice. The skirt has lugs 9 carrying the fulcrum pin 8 of the float lever 7 which passes under the mouth of the skirt and between guide legs 19 and is secured by a pin 17 to the slotted end 16 of the plunger rod.
Patent GB-955670-A (GB)
Title: Manufacture of polymers
IPC: C08G18/42
Filed: 1960-05-04
Abstract: Polymeric materials containing free b -hydroxy-alkyl ester groups are made by finely dispersing at least one gaseous alkylene oxide, particularly ethylene or propylene oxide, at substantially atmospheric pressure and in the presence of a basic catalyst, into a solution, in an anhydrous inert solvent, of a polymer containing free carboxylic acid groups at a temperature not exceeding 95 DEG C. The polymer may be one obtained by polymerization of acrylic, methacrylic, crotonic, a -chloroacrylic, maleic or fumaric acid or a copolymer of one or more of these acids with one or more of butadiene, styrene, vinyl toluene or an acrylate or methacrylate. The basic catalyst may be ammonia or tertiary amines obtained by reduction and dimethylation of amides of hydrolysed coconut oil. The products may be cross-linked by reaction with diisocyanates or maleic anhydride copolymers.  Reference has been directed by the Comptroller to Specification 771,569.
Patent GB-458018-A (GB)
Title: Control device for aerial winding mechanism on aircraft
IPC: B66D1/02
Filed: 1936-06-05
Abstract: 458,018. Winding-apparatus; index attachments. ROMEYLOWERK GES. FUR, DRAHTLOSE TELEGRAPHIE VORM. BACKHAUSS & GEB. ROTHE GES., 109, Grossbeerenstrasse, Nowawes, Germany. June 5, 1936, No. 15752. Convention date, June 5, 1935. [Classes 78 (ii) and 78 (v)] A remote control device for the aerial winding mechanism of aircraft includes a flexible shaft and a clutch between the drive and the winding drum, the arrangement being such that when the shaft is rotated in one direction, the clutch is engaged and the aerial wound on the drum, while when it is turned in the opposite direction, the clutch is disengaged and the aerial runs out freely by its own weight. The drum b, Fig. 1, is loose on a shaft d which is driven through bevel gearing by a crank-actuated flexible shaft a. A clutch member c slidably mounted on the shaft is controlled by a cam-actuated lever c<1> against the force of a spring c<2>. The cam h<1> is mounted on a shaft h which carries a pinion f capable of a movement limited by fixed abutments g, g<1>, Fig. 2. The pinion engages a toothed wheel e which is driven from a cylinder d' on the shaft d by means of brake blocks e<1>. When the crank a<1> is turned in either direction, the gear e is driven by friction until the arm f <1> of the pinion f comes into contact with an abutment. This movement of the pinion is sufficient to engage or disengage the clutch. A similar cam n and lever m<1> are used to control the application of a brake band m to the drum b. The movement of the drum b is transmitted by bevel gears i and a flexible shaft i<1> to an indicating device k in the cockpit. In a modification the connection between the cylinder d<1> and gear e is effected by a spring-tensioned brake band so arranged that it acts as a coupling only in one direction of rotation. In another modification the connection between the parts d<1>, e is a pawl-and-ratchet mechanism. In a further modification a ratchet wheel s, Fig. 7, connected to the shaft d is engaged by a pin t<1> on an arm t fixed to the shaft h.
Patent GB-776647-A (GB)
Title: Fuels for internal combustion engines and additives for such fuels
IPC: C10L1/10
Filed: 1953-06-09
Abstract: A petroleum fuel for internal combustion engines contains an additive capable of securing the deposition of a lubricating film upon the cylinder wall and upon the mechanical parts of the combustion chamber, by thermo-chemical reaction within the combustion chamber, this additive containing (a) an acetylenically unsaturated organic compound convertible under combustion conditions to material having lubricating properties and (b) a minor proportion of at least one compound chosen from metallic acetoacetate, enolates and amino-acetates, porphyrines and their metal derivatives, polyhydrocyclo-pentanophenanthrenes and their substitution derivatives, pyrrole and substituted pyrroles, dimethylanthraquinones and tetraphenylrubenes, the proportions of ingredients (a) and (b) being such that the greater part of the lubricating film is destroyed during the combustion phase following that in which it is formed. The petroleum fuel may be gasoline, while ingredient (a) may be a substance containing one or more acetylenic carbon-to-carbon linkages such as isonic or isonolic acid.  In addition to being acetylenically unsaturated, ingredient (a) may contain one or more ethylenic linkages. Ingredient (b) may be haemin, chlorophyll, cholesterol, pyrrole, a methyl-substituted pyrrole, or a metallic (particularly copper, nickel, aluminium, chromium or cobalt) aceto-acetate, amino-acetate or enolate.  An enolate is defined as an alcoholate of an enol form of a ketone or ester, and sodiumalonic ester is specified.
Patent GB-1012552-A (GB)
Title: Polymerization reaction
IPC: C08G2/00
Filed: 1964-04-16
Abstract: A reactive form of formaldehyde is polymerized with from 0.1 to 20 mol. per cent of the formaldehyde of a diene containing from 3 to 54 carbon atoms in the presence of a polymerization catalyst.  A Lewis acid may be the catalyst when trioxane is polymerized and a Lewis base when formaldehyde, although heterogeneous catalysts may also be used. Long lists of suitable catalysts may be given. Specified dienes are 1.2 and 1.3-butadiene, isoprene, chloroprene, bromoprene, 2.3-dimethylbutadiene, squalene, allene, 4-vinyl-cyclohexene - 1, 2 - 5 - hexadiene, 1 - 4 - heptadiene, 1 - 6 - octadiene, 1 - 3, 1 - 4, and 1 - 5-cyclooctadiene, diallyl, 1 - 3 - pentadiene, 2-vinylcyclooctadecene - 4, cumulenes and 4-vinylcyclohexadiene-1-5. The polymerization may take place in bulk, as vapour, in solution or emulsion, as a continuous process, a batch process or a semi-batch process.  The interpolymers may be end-capped, e.g. by treatment with an anhydride such as acetic anhydride or a dialkyl acetal to esterify the groups.
Patent GB-179841-A (GB)
Title: Improvements in and relating to the braking of animal drawn vehicles
IPC: B62C7/04
Filed: 1921-06-09
Abstract: 179,841. Wheen, F. T. June 9, 1921. Actuated or applied by backward pressure of tractor or relaxation of pull.-A braking-device for animal-drawn vehicles comprises shafts j having an extended shaft pin a and rods c which slide in metal plates d. Rigid with the arms b ot shaft a are pivot pins b<1> upon which brake blocks g rotate on radius-pieces n<1>. When the vehicle overruns the horse, the parts j, a, c, move backwards relatively to the fore-carriage e, and the brakes are applied. If the vehicle is backed the wheels rotate the blocks g upwards about the pivots b<1> and release the brake. When the vehicle moves forward the radius-pieces n<1> fall to their normal positions on the stops m.