baber/WOPTO huggingface dataset:
Patent GB-1087292-A (GB)
Title: Polyethers
Inventor: BAYLIS PATRICK EDMUND TREVOR
IPC: C08G65/14
Filed: 1963-08-06
Abstract: Low molecular weight fluid polyethers containing substantially unpolymerized ethylenically unsaturated groups are prepared by heating a polymerizable 1,2-epoxide containing a b ,g -ethylenically unsaturated ether group or containing a hydrocarbon group which contains an ethylenically unsaturated group directly attached to a carbon atom of the epoxide ring in the presence of an alkali metal hydroxide or an alkali metal alcoholate of an aliphatic mono- or poly-hydric alcohol and a non-polar unreactive diluent of boiling point within the range 70-160 DEG  C. Suitable epoxides include alkyl glycidyl ether and alkyl analogues thereof and butadiene monoxide. Copolymers may be obtained with 1,2-epoxides not containing ethylenically unsaturated groups (e.g. "styrene" oxide in Example 11).  Linear polyethers are obtained with hydroxide catalysts or those derived from mono- or di-hydric alcohols unless some diepoxide is present and branched polyethers with tri- or higher hydric alcoholates. Suitable diluents include aliphatic and aromatic hydrocarbons.  An excess of the alcohol corresponding to the catalyst may be present.  Catalyst residues may be removed by neutralizing with a cation exchange resin or an inorganic or organic acid or anhydride and filtering off the insoluble salt formed.ALSO:Low molecular weight fluid polyethers containing substantially unpolymerized ethylenically unsaturated groups are prepared by heating a polymerizable 1,2-epoxide containing a b ,g -ethylenically unsaturated ether group or containing a hydrocarbon group which contains an ethylenically unsaturated group directly attached to a carbon atom of the epoxide ring in the presence of an alkali metal hydroxide or an alkali metal alcoholate of an aliphatic monoor poly-hydric alcohol and a non-polar unreactive diluent of boiling point within the range 70 DEG  C.-160 DEG  C.  Suitable epoxides include allyl glycidyl ether and alkyl analogues thereof and butadiene monoxide.  Copolymers may be obtained with 1,2-epoxides not containing ethylenically unsaturated groups (e.g. styrene oxide in Example 11).  Linear polyethers are obtained with hydroxide catalysts or those derived from mono- or di-hydric alcohols unless some diepoxide is present, and branched polyethers with tri- or higher hydric alcoholates. Suitable diluents include aliphatic and aromatic hydrocarbons.  An excess of the alcohol corresponding to the catalyst may be present.  Catalyst residues may be removed by neutralizing with a cation exchange resin or an inorganic or organic acid or anhydride and filtering off the insoluble salt formed.
Patent GB-959451-A (GB)
Title: Grid mounts for electron tubes
IPC: H01J19/38
Filed: 1960-09-08
Abstract: 959,451. Discharge tubes. I. M. CLARK. (Radio Corporation of America). Sept. 8, 1960, No. 31028/60. Heading H1D. A cylindrical grid comprises a plurality of side-rods 14, a helical control grid wire 12 coaxial with the side rods, and at least one helical truss wire 18, having a coarser pitch than helix 12, and in contact with the control helix at points along its length, to increase the resonant frequency of the grid. The helix 12 may be located inside the side-rods 14 with the truss wire 18 either inside helix 12, or between helix 12 and side-rods 14, the wires and rods being brazed together at their points of contact. Alternatively, the helix 12 may be wound around the side-rods with the truss wire 18 outside helix 12. Three or four helical truss wires of equal pitch may be used, interwound with one another. The helix 12 and truss wires 18 may be of 0.5 or 0.8 mil. molybdenum wire and the side-rods of 1.5 mil. molybdenum wire. Suitable dimensions for the grid are given. As shown, the grid is supported, at one end only, by a flange 28 and support wires 32 sealed in ceramic wafer 34.
Patent GB-226836-A (GB)
Title: Improvements in rubber vulcanization
IPC: C08K5/00
Filed: 1924-12-29
Abstract: A vulcanizing accelerator consists of the reaction products of aliphatic, aromatic or alicyclic disubstituted guanidines with aliphatic or aromatic disubstituted dithiocarbamic acid.  These substances may be produced by condensation of a secondary amine with carbon disulphide in presence of the guanidine radicle, or by reaction between a guanidine salt and a metallic salt of disubstituted dithiocarbamic acid.  The Specification as open to inspection under Sect. 91 (3) (a) states also that alicyclic acids such as piperidine dithiocarbamic acid may be used.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1341865-A (GB)
Title: Nuclear magnetic resonance magnetometers
IPC: G01R33/24
Filed: 1971-07-02
Abstract: 1341865 Nuclear magnetic resonance magnetometers COMMISSARIAT A L'ENERGIE ATOMIQUE 2 July 1971 [22 July 1970] 31137/71 Heading G1N [Also in Division H1] A nuclear magnetic resonance magnetometer having no forbidden axis comprises two identical coils 18, 18' surrounded by respective resonance samples, each sample being contained in two containers shaped as shown so that the coil fits in between them, the coils being connected to respective inputs of a differential amplifier 12, the output of which is fed back via resistance network 34, 38, 34' to maintain oscillations at the nuclear magnetic resonance frequency of the samples. For saturating an electronic resonance line producing increased absorption of the nuclear resonance signal in one sample and an electronic resonance line producing emission in the other sample, a V.H.F. generator 14 is connected via a coaxial cable 26 to a resonant cavity comprising conductive end walls 41, 48, and longitudinal conductive strips 40, connected to the outer conductor of the cable 26; and a central conductor 39, connected to the central conductor of the cable 26, and to a conductive disc 50 opposing end wall 48 to form therewith a capacitor 28. The end walls and the capacitor are made of silver deposited on quartz discs 43, 46, the silver being radially slotted Figs.3 and 4 (not shown), the so-formed sectors being connected to individual ones of the strips 40 which are made of silver foil. Notches (54) in both discs accommodate filling nipples for the sample containers. Adjustment of capacitor 28 is by scraping the silver. Matching the cavity to the cable 26 is by means of loop 56. With a uniform distribution of the samples around the coils 18, 18', the output signal is practically independant of the orientation of the magnetometer head; with a reduction of the volume of the samples placed radially with respect to the coils, the effects of rotation of the head may be reduced. The magnetometer may be mounted on board an aircraft, with the axis of coils 18, 18' along the roll axis of the aircraft. Suitable pairs of samples are TANO in DME and TANO in methanol; DTBN in water and acetone and TANO in water and ethylene glycol; and TANO in DME and TANO in water and DME. The TANO and DTBN may be deuterated. Suitable concentrations are given. Numerical details of the construction of the head are given.
Patent GB-923944-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1959-09-14
Abstract: The invention comprises compounds having the formulae <FORM:0923944/IV(a)/1> <FORM:0923944/IV(a)/2> wherein X is hydrogen, fluorine or chlorine and Y is b -hydroxymethylene or carbonyl and a process for the preparation thereof which comprises reacting the corresponding 21-iodo compound with an agent capable of reducing iodine in the 21-position, e.g. sodium thiosulphate.  The 21-iodo compounds may be obtained by esterifying the corresponding 21-hydroxy compounds with a sulphonating agent to obtain a 21-sulphonate ester which on treatment with an alkali metal iodide gives the corresponding 21-iodo compound.  The D 4 compounds may be bioconverted into the corresponding D 1,4 compounds by means of the microorganism Septomyxa affinis.  Illustrative products of the invention are 6a ,16a -dimethyl-11b ,17a  - dihydroxy - 1,4 - pregnadiene - 3,20 - dione, 6a ,16a  - dimethyl-9a -fluoro-11b ,17a -dihydroxy-1,4-pregnadiene -3,20-dione, 6a ,16a ,11b , 17a -dihydroxy-4-pregnene-3,20- dione, and 6a , 16a  - dimethyl - 9a -fluoro-11b ,17a -dihydroxy-4-pregnene-3,20-dione. Specifications 724,094, 761,490, 771,344, 781,712 and 923,943 are referred to.ALSO:Pharmaceutical compositions comprise compounds having the formul  <FORM:0923944/VI/1> <FORM:0923944/VI/2> wherein X is hydrogen, chlorine or fluorine and Y is a b -hydroxymethylene or carbonyl group and a pharmaceutical diluent.  They may be administered orally as pills, tablets, capsules, syrups and elixirs, as injectable products in liquid form and topically as ointments, creams, sprays and lotions. Antibiotics e.g. the penicillins, neomycin, tetracyclin, chloramphenicol and novobiocin may also be present. Specifications 724,094, 761,490, 771,344, 781,712 and 923,943 are referred to.
Patent GB-536954-A (GB)
Title: Improvements relating to sliding windows and the like
IPC: B64C1/14
Filed: 1939-12-02
Abstract: 536,954. Vehicle Windows. BECKETT, LAY COCK & WATKINSON Ltd., and BUSHNELL F. B. Dec. 2, 1939, No. 31331. [Class 20 (iii)] In a sliding window especially for use in aircraft, a sliding panel 12 is mounted in top and bottom channels 16 which grip the margin of the panel, a lateral projection 17 extending into guide channels each formed by a strip 19 shaped at 21. This interlocking of the top and bottom edges of the panel with the guide channels resists any tendency for the panel to be withdrawn from its guide channels. The fixed panel 11 is held between a strip 20 and an extension 22 of strip 19. An outer frame 10 accommodates side channel 14 of the sliding window which has an extension 25 carrying a rubber fillet 26 to reduce aero-dynamic turbulence. The strips 18, 19, 20 forming the guide channels may be secured together in the manner described in Specification 536,955, [Group XXII].
Patent GB-280386-A (GB)
Title: Process and apparatus for impregnating and rendering rigid pieces of paper or fabric of any form
IPC: D06B3/00
Filed: 1926-12-10
Abstract: 280,386. Manufacture de Machines Auxiliaires pour l'ElectricitÚ et l'Industrie. Dec. 10, 1926. Addition to 215,726. Waterproofing; proofing processes and compositions; wood, treating with liquids. - In the process and apparatus for impregnating paper, cardboard &c. described in the parent Specification, in order to provide for the necessary temperature changes the oven 1, Fig. 1 is provided with both heating and cooling means. The oven may be heated bv the circulation of hot oil in a jacket 1 while cooling is effected by water circulating in a coil pipe 3. In modifications the circulating oil may be cooled in a refrigerator external to the jacket or the jacket may be heated by steam supplied to the jacket and cooled by water circulating therein. In order that the same air compressor 10 may serve both to supply vacuum and pressure to the oven 1 a pair of simultaneously operated three-way cocks, 14, 15 are arranged so that in one position the suction is connected to the oven and delivery to the atmosphere and in the other the suction is connected to the atmosphere and the delivery to the oven. The condenser 7 is connected through a threeway cock with a reservoir 17 so that liquid from the condenser may be evacuated without altering the pressure condition in the oven 1. In a further modification, two stoves are provided, the first 33, Fig. 8, for preliminary heating and impregnation of the material to be treated and a second 37 for operations requiring a high temperature such as hardening and polymerizing. By this means the impregnating material which adheres to the sides of the stove is not polymerized and is redissolved during the heat impregnation and' the various stages of the process can be observed as the articles are transferred from one stove to the other.
Patent GB-718586-A (GB)
Title: Improvements in and relating to wheel-rim lining flaps for use with pneumatic tyres
IPC: B60B21/12
Filed: 1952-12-11
Abstract: 718,586. Pneumatic tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. Dec. 11, 1952 [Dec. 13, 1951], No. 31450/52. Class 144(2) A wheel-rim lining flap of rubber or like material to prevent pinching of an inner tube 10 between the beads 3 of a pneumatic tyre cover and the wheel rim 4 is formed of two or more annular portions 1, 2 which support and fit against each other on the rim 4. The two or more separate portions of the lining flap provide for use of the flap with rims of different axial widths for a given tyre cover. Fig. 4 shows a flap formed by channel-section centre portion 1 nesting between two lateral or wing portions 2 which bridge the junction of the adjacent tyre bead 3 with the rim 4. In an alternative arrangement, one of the lateral or wing portions _may be formed integral with the centre portion. Fig. 6 shows an arrangement comprising a deep channel-section centre portion 1C supported between two triangular-section bands 6. Fig. 7 shows two angle-section portions 7 having bevelled mating edges 9 providing for adjustable overlap.
Patent GB-175051-A (GB)
Title: Improvements in sliding windows and the like
IPC: E05F11/00
Filed: 1920-11-08
Abstract: 175,051. Basham, C. L., and Basham, F. L. Nov. 8, 1920. Holders for sliding windows.-In a windowholder having a corrugated spring - pressed catch on the sash h engaging with a strip on the frame, the catch on plate d has studs e projecting into a box in the sash secured by flanges i. The studs carry springs f and securing nuts. In a modification, the catch is formed as a rib or roller on one of two hinged plates spring-pressed apart and mounted in a recess in the sash.
Patent GB-1287965-A (GB)
IPC: F16H37/12
Filed: 1970-06-30
Abstract: 1287965 Self-locking transmission mechanism DUFF - NORTON CO Inc 30 June 1970 [15 Sept 1969] 31555/70 Heading F2E [Also in Division B8] A screw-and-nut actuator comprises, Fig. 3, a multi-start screw 88 driven by an electric motor 14 through a self-locking mechanism 18 and a gear set 22. Screw and nut.-The screw 88 has an extension 80 engaging a plain bearing 82 and is pinned to a gear 26, mounted on a ball bearing 94, by which it is driven. Gear set.-The gear 26, Fig. 2, is part of a skew-axis, screw-type gear set 22 and has teeth 76 on a generally radial face 78 meshing with worm-like screw teeth 74. Self-locking mechanism.-Transmits the drive from the motor 14 freely in either direction, but locks in both directions, as described and claimed in Specification 1,287,966, when not driven.
Patent GB-773306-A (GB)
Title: Safety device for one man-operated motor rail cars
IPC: B60L3/02
Filed: 1955-11-04
Abstract: 773,306. Controlling vehicles. MASCHINENFABRIK OERLIKON. Nov. 4, 1955 [April 1, 1955], No. 31657/55. Class 79(5). [Also in Group XXXIV] In known safety device for the control of motor rail cars of the kind wherein the controller has a driving shaft 6 which, to produce a quick action stoppage of the train, is geared to a shaft turning contacts 7, 8 and 10 and to produce a slow action stoppage of the train is geared to a shaft turning contacts 8<SP>1</SP> and 9, both sets of contacts when turned operating a warning horn 11 and then stopping the train (by means not shown), it is arranged that, provided one or other of voluntary contacts 12 or 13, such as a " deadman's " handle or pedal is kept depressed, and also involuntary contacts 14, such as may be operated by a brake valve, are also kept closed, the coil 5 of a solenoid on the driving shaft 6 of the controller will be kept energized to keep the control device 1 set for a slow action stoppage through contacts 8<SP>1</SP>, 9, so as to stop the train after 1-2 minutes or 1-2 kilometres. If, however, the contacts 14 are open for any reason for a predetermined period, opening of the contacts 12 and 13 will bring into action a " quick motion " stoppage within for instance 5 seconds or 100 metres. Since the coil 5 of a solenoid acting to maintain shaft 6 raised will no longer be energized. In such operation reputed change-over from " slow " to " quick motion " of the controller device may take place as a result of one of the contacts 14 remaining open for more than the predetermined period when the contacts 12 or 13 are also operated, and to avoid the disturbance of the system that may take place as a result of such operation, a time delay relay 15 is arranged to maintain the coil 5 energized for the predetermined period during which the contacts 14 may be open normally before the apparatus changes to its position for a " quick motion " stoppage. In another embodiment to prevent similar repeated operation when one of the contacts 14 is left premanently open, two time delay relays are used.
Patent GB-707551-A (GB)
Title: Method of and apparatus for breaking up a length of swarf generated in a machine tool
IPC: B23B25/02
Filed: 1950-12-30
Abstract: 707,551. Machine tool details. WRIGHT, S. B. Dec. 3, 1951 [Dec. 30, 1950], No. 31679/50. Class 83 (3) A method of breaking up swarf in a machine tool which produces it in helical lengths comprises feeding the swarf laterally into a convergent space where it is gripped remotely from its point of generation so that its axial rotation builds up sufficient torsional stress to fracture it. As applied to a turning lathe, a swarf spiral 23 from a workpiece 14 passes into a V-notch provided in a plate 19 bolted at 20 to a cross-slide 11. One side 21 of the notch is smooth and the other side 22 which engages the swarf is serrated. The swarf feeds up to the apex of the notch where it jams and is broken off usually at the tool-edge. The serrated jaw may be oscillated by the operator, or, automatically through solenoid means when the free end of the swarf moves a switch member. The device may be fitted with a guide to direct the swarf and an ejector may push out swarf pieces from the device. In a modification the serrated jaw may be in the form of a conical roller.
Patent GB-336109-A (GB)
Title: Improvements in electrolytic separation of copper
IPC: C25C1/12
Filed: 1929-10-18
Abstract: 336,109. Mozer, A. Oct. 29, 1928, [Convention date]. Copper, depositing.-A solution of cuprous iodide is employed as electrolyte; no measures for protection against atmospheric oxidization are necessary. The solvent may be a solution of an alkali metal or alkaline earth metal halide, sulphite, thiosulphate, cyanide or other salt, preferably an iodide. A suitable electrolyte contains 60 gms. cupious iodide and 600 gms. potassium iodide to 1000 c.c. water. 5-10 gms. of a colloid such as glue or gelatine or of a substance having capillary activity such as phenol or tannin may be added. A current density of 400 amps per sq. metre at 0.3 volts is used. The invention is applicable to plating, the manufacture of electrotypes and the refining of black copper. Specification 4626/88, [Class 92, Metals and alloys], is referred to.
Patent GB-174240-A (GB)
Title: Improvements in or relating to furnaces
IPC: F28F21/04
Filed: 1920-11-10
Abstract: 174,240. Smallwood, A. Nov. 10, 1920. Regenerators.-A recuperator of the isolated waste-gas and air passage type is arranged so that by reversing a four-way cock, the air and combustible gas may pass through the passages which have conveyed the waste-gas and vice versa. In Fig. 1, d shows such a recuperator, one set of flues of which communicates with one flue f and the other with the other flue f. These flues, f, f, communicate through a four-way cock g, Fig. 2 with the stack flue h and the air-inlet i. The recuperator as described above may work in conjunction with regenerators c, c, Fig. 1, of the checkered brickwork type. Gas is led to the working hearth a from the producer by passages l, l<1> and admission ports a<1>, Fig. 2.
Patent GB-793471-A (GB)
Title: Fastening device
IPC: B65D63/12
Filed: 1955-11-07
Abstract: 793,471. Cord fasteners; cleats. MOGHADAM, L. MARKOFF-, [formerly MOGHADAM. L. M.]. Nov. 7, 1955 [Jan. 14, 1955], No. 31761/55. Classes 44 and 109 [Also in Group XXXVI] A fastening device for connecting two portions of cord, ribbon, string, rope, wire thread, yarn, cable, electrical conductors or clothes lines comprises two strands 13, 14 of resilient filamentary material which run side by side and are twisted together to form an elongated intermediate loop which is adjoined at each of its ends by a section 15, 16 consisting of a series of intertwined turns which forms an end of the device, these turns being deformable so as to yield to secure and then to resiliently grip one of the two portions of cord, &c Each portion of cord &c. is passed through the loop and pulled through the twists of a respective end section until it is tightly engaged. The twists can be of the same size as shown in Fig. 3, or gradually decreasing size or in groups of varying sizes. In a modification, Fig. 5. two devices as shown in Fig. 3 are arranged with their loops crossing at right angles, the crossing points being soldered or welded together. Such a device is useful for securing cord or ribbon typing a package. In a further modification the device shown in Fig. 3 can be. curved for use as a shoe lace connector. Each of the devices described above is made of metal or plastic wire and the two strands 13, 14 can be parts of a single length of wire if desired.
Patent GB-287230-A (GB)
Title: Improved process for degreasing raw wool and other textile materials
IPC: D01C3/00
Filed: 1926-12-16
Abstract: 287,230. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 16, 1926. Fats and fatty oils, extracting by solvents.- Raw wool or other textile materials are degreased by cyclobexanone or a homologue. The wool may be dry or wet, and may have been washed with water to extract the potash salts. Cyclohexanone containing a small quantity of fat or mixed with other water-soluble organic solvents of fat may be used in order to leave a slight amount of fat in the wool. The residual solvent is removed by washing with water.
Patent GB-866146-A (GB)
Title: Carving fork guard(springless)
IPC: A47G21/02
Filed: 1960-02-09
Abstract: 866,146. Carving forks. JOHNSON, C. Feb. 9, 1960, No. 31925/58. Class 30. A carving fork has a guard pivoted in a slot E in the shank, the guard being held in open and closed position by a sleeve H rotatably mounted on the shank and engaging a spur F on the guard. In the open position (Fig. 4) the spur passes through a slot G in the sleeve and is retained in a shallow slot F in the shank.
Patent GB-319589-A (GB)
Abstract: 319,589. Du Pont de Nemours & Co., E. I., (Assignees of Dykstra, H. B., and Sly, C.). Sept. 22, 1928, [Convention date]. Vinyl esters; ethylidine esters; acetic anhydride. - Vinyl esters are produced by passing acetylene into the corresponding acid in presence of a catalyst such as mercuric sulphate and of an aliphatic hydrocarbon diluent having a boiling- point higher than the acid, such boiling point being intermediate between those of the acid and its ethylidine ester or higher than both. In the examples acetylene is passed in presence of mercuric sulphate into (1) glacial acetic acid and kerosene (boiling-point 200-275‹ C.) with rapid stirring at 60-75‹ C. rising to 90‹ C., vinyl acetate being carried over by excess acetylene and condensed, while from the residue in the autoclave the kerosene is decanted and the other layer is distilled to recover acetic acid, acetic anhydride, and ethylidine diacetate; (2) propionic acid and medicinal white oil (boiling-point 300‹ C. or higher); (3) butyric acid and purified kerosene. The process is applicable to other esters such as the formate. It is stated that other solvents such as triethylin, ethylene glycol, mono-ethyl ether acetate, and high-boiling gasoline (b.p. 150-160‹ C.) are less advantageous than the aliphatic hydrocarbons, and kerosene purified by fuming sulphuric acid is preferably employed. The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the use of an aliphatic hydrocarbon as diluent. This subjectmatter does not appear in the Specification as accepted.