baber/WOPTO huggingface dataset:
Patent GB-508726-A (GB)
Title: Process for the manufacture of ª‰-alkyl-substituted ethylamine derivatives
Filed: 1938-02-28
Abstract: 508,726. Alkylethylamines. SCHERING AKT.-GES. Feb. 28, 1938, Noa. 6317 and 6318. Convention dates, Feb. 26, 1937 and March 1, 1937. [Class 2 (iii)] #- Di- and tri-alkyl-ethylamines containing. - a total of 11-18 carbon atoms are prepared by reducing the corresponding nitriles or acid amides. The starting materials may be obtained according to the processes of Specifications 393,955; 394,087, and 469,921. The products possess therapeutic properties. According to the examples: (1) #-tri-n-butytethylamine is obtained by the hydrogenetion of tri-n-butylacetonitrite in an autoclave using a nickel-kieselguhr catalyst, or by similar treatment of tri-n-butylacetamide in the presence of a nickel catalyst prepared by reducing precipitated basic nickel carbonate; (2) #-ethyl- ##-di-isoamylethylamine is prepared from ethyl-di-isoamylacetonitrile by reduction with sodium in boiling alcohol solution, or by catalytic hydrogenation as in (1) of ethyl-diisoamyl-acetonitrile or -acetamide ; (3) di-nhexytacetonitrile is shaken with hydrogen in the presence of a Raney nickel catalyst, prepared by the , process of U.S.A. Specification 1,915,473, to give ##-di-n-hexylethylamine. Reference is also made to #-tripropyl-, diethyln-hexyl-, ethyl-di-n-butyl- and tri-isoamylethylamines as products. The Specification as open to inspecsion under Sect. 91 also describes the preparation of #-monoalky-ethylamines containing 11-18 carbon atoms and refers to #-n-tetradecaamine. It also states that any of the products may be prepared from the corresponding acid amides, which contain in the molecule one carbon atom more than in the desired amine, by the Hofmann or Curtius.degradation methods. This subjectmatter does not appear in the Specification as accepted. Acetonitriles.-Ethyl-di-isoamylacetonitrile is obtained from butyronitrile, sodamide and isoamyl bromide.by the method described in Specification 393,955. Di-n-hexylacetonitrile is prepared by reacting cyanacetic acid ethyl ester with sodium alcoholate and hexyl bromide, saponifying the resulting di-n-hexylcyanacetic acid ethyl ester and heating the free acid to split off carbon dioxide.
Patent GB-996672-A (GB)
Title: Practice mortar bomb
IPC: F42B8/02
Filed: 1963-02-15
Abstract: 996,672. Practice projectiles. DYNAMITE NOBEL A.G. Feb. 15, 1963 [March 3, 1962], No. 6330/63. Heading F3A. A practice mortar bomb comprises a dummy bomb 1 having an axial passage 2 closed at the base by a locking nut 3 and housing a subcalibre bomb 4 having the external form of a live bomb. The bomb 4 is mounted in a cartridge case 8 of which the rim 9 is engaged by the nut 3. The cartridge primer 10 is aligned with an opening in the nut 3 and the bomb 4 houses a tube 16 containing a propellant charge 11 and a sleeve 15 surrounding a smoke charge 13. The tube 16 is of resilient, rupturable material, preferably a synthetic thermoplastic. On placing the dummy bomb in a mortar, the primer 10 is initiated and ignites the propellant 11, which causes the tube 16 to rupture in the region of apertures 21 in the tail of the sub-calibre bomb and allow escape of the propellant gases into the ease 8, from which the bomb is ejected by the gases. On impact a safety sleeve 26, which previously protected a fuze holder 25, allows a spring- supported firing pin 28 to ignite a primer 27 and the flash passes through a duct 30 to ignite the smoke charge 13.
Patent GB-739654-A (GB)
Title: Light sensitive material for the photomechanical production of printing plates
IPC: G03F7/022
Filed: 1954-03-04
Abstract: Compounds of formul  <FORM:0739654/IV (b)/1> or <FORM:0739654/IV (b)/2> where D is the naphthoquinone-(1 : 2)-diazide residue, X is hydrogen or a hydroxyl group, R is hydrogen, OR1, NR2R3 or a substituted or unsubstituted alkyl, aryl or heterocyclic residue, R1 is alkyl or aryl R2 is hydrogen or phenyl, R3 is phenyl are made by condensing naphthoquinone - (1,2) - diazide-(2) - 4 - sulphonic acid chloride or the corresponding 5-sulphonic acid chloride with phenol components corresponding to the above phenolic residues in dioxane solution in the presence of sodium carbonate or bicarbonate at room temperature, precipitating with dilute hydrochloric acid, filtering and washing and drying the precipitate.  In example (1) 2,3,4-trihydroxy - benzophenone - naphthoquinone-(1,2) - diazide - (2) - 5 - sulphonic ester is so made.  Twenty-eight similar compounds are listed.  The radical R may contain chlorine. Specification 725,773 is referred to.
Patent GB-902161-A (GB)
Title: Improvements in ultra high vacuum chambers
IPC: F04F9/00
Filed: 1961-02-22
Abstract: 902,161. Vacuum chambers. NEW YORK AIR BRAKE CO. Feb. 22, 1961 [Feb. 25, 1960], No. 6445/61. Class 8(2). A vacuum chamber 11, Fig. 1, within which an article may be coated with metal by condensation of metal vapour and connected to a pumping system 69 capable of operating at 10-<SP>9</SP> m.m. mercury gauge is surrounded by an electric heating element 28 and by a coaxial casing 21 connected to a pumping system 75 capable of operating at least as low as 10<SP>-3</SP> m.m. gauge and the wall of the inner chamber is penetrated by imperfectly sealed electrodes 54, Fig. 2, a rotary shaft 65 and a sight glass 45 each of which seals provides a leakage path between the inner and outer chambers whose conductance is correlated with the pumping speed of the ultra high vacuum system 69, the rate of evolution of adsorbed gas from the inner wall of the chamber 11 during the conventional bake-out period and the pressure in the annular space between the two casings. The window and electrodes are sealed by conventional copper wire rings 46, 52 and the shaft 65 is sealed by a sleeve 63 brazed to a plate 54 bolted to a stainless steel bush 62. The above imperfect seals are sufficient to hold a vacuum of 10<SP>-3</SP> m.m. gauge. In operation the chamber 11 is evacuated by a force pump 74 to 10<SP>-3</SP> m.m. gauge with the outer casing 21 removed. The latter is then positioned and a valve 83 opened to evacuate the annular space to the above pressure, valve 83 is then closed and fore pumps 78 and deffusion push 77 started with a valve 81 open and simultaneously diffusion pumps 71, 72 are started and current passed through heating element 28 until the casing temperature reaches 490C. at which it is maintained for eight hours. The chamber 11 is then cooled by passing compressed air through coils 31, 32 and an annular chamber 34 of a chevron trap 33 followed by water and liquid nitrogen over a period of eight hours after which the vacuum in the chamber 11 is of the order 10-<SP>9</SP> m.m. gauge and is maintained at this value by the pump systems 69, 75 during the several hours during, which the articles within the chamber are treated. In a modification the outer vacuum chamber is confined to the region of the penetration.
Patent GB-916809-A (GB)
Title: Improvements in and relating to control systems for electric motor-driven winding, hoisting or the like engines
Inventor: RUSSELL DEREK BARRY
IPC: B66C13/26
Filed: 1958-02-27
Abstract: 916,809. Controllers; control of A.C. motors. ENGLISH ELECTRIC CO. Ltd. Feb. 26, 1959 [Feb. 27, 1958], No. 6451/58. Class 38 (3). Also in Group XXXV] A winding operation is initiated by closing stator contactors 12 or 13 in accordance with the desired direction of wind, thus energizing an induction motor 10, contacts 45 also closing to energize a contactor 42. A pilot motor 34 then drives potentiometers 23, 40, and a brakeoperating link 33, to increase the motor torque and to decrease the effort exerted by brake 29. The potentiometer 23 is adjusted to increase a speed reference signal 20, whereby a rotor resistance 14 is reduced, and the brake link 33 is moved downwards to increase the fluid pressure in a brake engine cylinder and thereby decrease the braking effort. The potentiometer 40 is adjusted to increase the voltage applied to the input circuit of a bridge rectifier 48, the output circuit of which is supplied from a current transformer 50, which detects the stator current of the motor 10. If the motor torque fails to increase in a desired manner in accordance with the speed reference signal 20, the voltage developed across the rectifier 48 by the current transformer 50 falls below that provided by the potentiometer 40 so that a relay 47 is energized to de-energize the contactor 42 and to reverse the pilot motor. The brake is then re-applied, the speed-reference signal is reduced, and the stator winding of the induction motor is deenergized. If the motor torque increases in the desired manner the brake will slip and the winder will move off from the standstill position. A motion-responsive relay thereupon opens contacts 27 and closes contacts 28 to increase the speed reference signal, the rate of change being limited by a device 24. A changeover switch 26 is afterwards operated by the winding engine to raise the speed-reference voltage derived from the potentiometer 23 from the creep-speed value to the full-speed value, a tachometer generator 22 providing a speed feedback signal 21 which opposes the signal 20. The pilot motor continues at constant speed to reduce the braking torque until the brake is fully released, whereupon a cam 41 operates switch 44 to stop the pilot motor. At a predetermined position in the wind, the changeover switch 26 is operated to reduce the speed reference signal, and, towards the end of the winding operation, contacts 46 are opened to reverse the pilot motor and re-apply the brake. As shown, the signals 20, 21, are supplied to an electric amplifier 19 affording a torque reference signal 17 which is compared with a torque feedback signal 18 derived from a current transformer in the rotor circuit of the induction motor. The torque signals are fed to an electric amplifier 16 which controls an hydraulic power amplifier 15 for varying the rotor resistance 14.
Patent GB-973015-A (GB)
Title: Novel alk[apoly]enyl compounds and a process for the manufacture thereof
IPC: C07C209/08
Filed: 1962-05-14
Abstract: The invention comprises compounds of the formula: <FORM:0973015/C1/1> wherein R represents a mercapto group or an etherified hydroxy or mercapto group and wherein the broken lines denote optional double bonds, and acid addition and quaternary salts of the basic compounds. The above compounds are prepared by reacting a halogenide of the formula: <FORM:0973015/C1/2> wherein X is a halogen atom with a compound of the formula R-A, wherein A represents a hydrogen atom or an alkali metal or an alkaline earth metal (in the presence of an acid-binding agent where A represents a hydrogen atom) and, if desired, converting the product if basic into an acid addition or quaternary salt. The examples describe the preparation of farnesyl methyl ether, farnesyl butyl ether, farnesyl mercaptan, farnesyl methyl mercaptan, farnesyl dimethylaminoethyl ether and 1-methoxy-3, 7, 11-trimethyl-tridecatriene-(2, 6, 10). The above compounds may be used to exert an arresting influence on the pupation process of insects (e.g. the silk moth) and can also be used as odorants in the preparation of perfumes.
Patent GB-442700-A (GB)
Title: Improvements in or relating to thread guide feeding devices for winding machines
IPC: B65H54/36
Filed: 1935-03-02
Abstract: 442,700. Winding threads. SCHARERNUSSBAUMER & CO., Erlenbach, Switzerland. March 2, 1935, No. 6620. Convention date, March 3, 1934. [Class 120 (ii)] In a winding-machine in which the thread guide is advanced at each reciprocation thereof by the contact of a feeler, by which it is carried, with the growing package, movement of the thread guide is prevented except at the end of each inward traverse by a friction locking clamp, which, by engagement with a fixed stop at the end of such traverse, releases the guide for its advancement. As shown, the thread guide 23 is carried by a plate 18 secured to the end of a guide rod 16 projecting from a hollow bar 11 and connected thereto by the friction locking clamp 14, 15 and spring 13 ; the plate 18 also carries a member 19 in which the feeler 20 is rotatably mounted. The member 19 with the feeler 20 and thread guide is fed outwards along a bar 6 by contact of the feeler with the thread coils B but such feeding movement can only take place when the member 14 of the clamp 14, 15 contacts with a fixed, but adjustable, stop 17, the clamp being then released against the action of the spring 13 to allow the rod 16 connected to the feeler 20 to move through the hollow bar 11 ; as the member 14 leaves the stop 17, the rod 16 is immediately coupled to the bar 11 and prevents any movement of the thread guide in the direction of its feeding movement and vibration of the parts due to inertia. A second locking clamp 27 of known construction may be associated with the feeler 20, a socket 24 on the member 19 carrying a locking member 25 engaging a bar 28 fixed to the reciprocating bar 6 coupled to the hollow bar 11 by a member 10 ; this clamp prevents any movement of the thread guide in the direction opposite to that of its feeding movement. The bars 6, 11 are reciprocated by a cam 4 on the driving element 2 gearing with the winding spindle 3 which may also be reciprocated; the thread guide may also be given a supplementary movement to vary the point along the package at which the traverse is reversed.
Patent GB-491533-A (GB)
Title: Arrangements for protecting the cabinets of wireless receiving sets during transit
IPC: B65D5/50
Filed: 1937-03-05
Abstract: 491,533. Packing wireless receiving- sets; wrappers &c. KOLSTER-BRANDES, Ltd., MOY, E. A., and BARTON, A. March 5, 1937, No. 6628. [Classes 94 (i) and 94 (ii)] The cabinet of a wireless receiving- set is enclosed in a carton so shaped as to protect the polished parts thereof, apertures in the carton being left over apertures in the cabinet through which the apparatus may be introduced into the cabinet, and through which the necessary tools may be inserted for securing the apparatus in position and making connections. In the form shown, a blank is provided with buffer strips 6 faced with flannel &c. and apertures 5, 9. The blank is applied so that the aperture 9 coincides with the front, and the aperture 5 with the base of the cabinet, scoring lines 12 assisting the application. The top and sides are covered by the panels 10, 11, the flaps 7 being folded outside the panel 10. The flaps 8 are temporarily folded up outside on the sides and secured by gummed strips. The partially enclosed cabinet is placed on a conveyer for conveyance to positions at which various assembly operations are performed. A loud-speaker, tuning dial, and the set mounted on a chassis are successively secured in position, and testing is carried out. A back is then applied to the cabinet, and the flaps 8 are folded over the aperture 5. The whole may then be placed in an outer container with the interposition of buffer strips.
Patent GB-1500214-A (GB)
Title: Placement device for an implantable electrode
IPC: A61B17/00
Filed: 1975-02-17
Abstract: 1500214 Implanting electrodes MEDTRONIC INC 17 Feb 1975 [19 Feb 1974] 6651/75 Heading A5R A device for use in implanting an electrode assembly including a flexible electrical conductor 7 in an insulating sheath 19 and having a helical electrode 13 provided with a pointed tip 15, comprises a tube 25 having an opening in the distal end (29) Fig. 1 (not shown), thereof for resiliently receiving a rubber boot 17 of the electrode assembly, a groove (39) being provided through the surface of the tube parallel to the axis thereof and communicating with the tube bore 41 which opens into said distal end opening, the sheath 19 being received in said groove during implantation when electrode 13 is screwed into tissue, and being removed thereafter by an elongate member 43 having a ridge 49 which engages in groove (39) to remove sheath 19 and finally abuts boot 17 to remove it from said distal end opening. Member 43 has a conical end portion 47, the other end thereof having an aperture (55) Fig. 2 (not shown) for receiving a portion 11 of the electrode assembly after implantation of electrode 13. The member 43 can thus be used to bore through tissue to locate portion 11 at a desired position for connection to a power supply under the skin, portion 11 then being removed from aperture (55) Netting 23 at the base of the electrode is stated to enhance fibrotic growth thereby ensuring a secure connection of the electrode to the tissue. The electrode is made of platinum/irridium.
Patent GB-349136-A (GB)
Title: Rubber and like heels
IPC: A43B21/22
Filed: 1930-02-28
Abstract: 349,136. Boot &c. protectors. HERFELD, 0., 39, Hafnerstrasse, Zurich, Switzerland. Feb. 28, 1930, No. 6704. Convention date, May 14, 1929. [Class 17 (iii).] A heel intended to prevent splashing of mud &c. on stockings &c. is provided with adjacent narrow grooves on its underside which absorb moisture when pressure on them is relaxed. The grooves 7 may radiate fanwise, and may cover the whole or only a part of the wearing surface. An insertion of crepe or sponge rubber 10 may be placed in a central cavity in the heel to increase the suction effect. The heels may be of rubber or other elastic material.
Patent GB-1490467-A (GB)
Title: Thermoplastic polycarbonate moulding materials with mould release
IPC: C08K5/103
Filed: 1976-02-20
Abstract: 1490467 Polycarbonate moulding compositions BAYER AG 20 Feb 1976 [22 Feb 1975] 06792/76 Heading C3R A thermoplastic moulding composition comprises a high molecular weight aromatic polycarbonate and 0À01 to 0À1% by weight, based on the composition, of, as mould release agent, an ester obtained by the complete esterification of an aliphatic alcohol containing 4 to 6 hydroxy groups with a C 10-20  saturated aliphatic carboxylic acid which is a monocarboxylic acid or a mixture thereof with a polycarboxylic acid. The composition may include glass fibres. The examples describe compositions containing (a) a polycarbonate derived from bisphenol A, optionally with tetrabromobisphenol A or tetramethylbisphenol A, and (b) pentaerythritol tetrastearate or tetrapalmitate, xylitol pentastearate or sorbitol hexapalmitate.
Patent GB-1519881-A (GB)
Title: Device for cleaning a gramophone record
IPC: G11B3/58
Filed: 1976-02-20
Abstract: 1519881 Cleaning gramophone records BIB HI-FI ACCESSORIES Ltd 20 Feb 1976 06875/76 Heading G5R In a gramophone record cleaning device, a rider 18 carrying pad 22 and brush 23 is in use supported by a record and driven by its grooves along a radial path defined by a rod 15 which extends through an elongate hole in the rider and a strip member 8 which extends in a recess in the top of the rider. The strip supports the rod and is secured to a pin 7 which can be rotated in a tube 3 extending upwardly from a base member 1 which is secured by an adhesive pad 2 adjacent the record turntable. The height of the tube can be adjusted and the rod and strip can be pivoted from the radial path to a position clear of the turntable to permit record change.
Patent GB-910941-A (GB)
Title: Gauge for measuring the displacement of a body
Inventor: ROUGE PIERRE
IPC: G21C17/10
Filed: 1959-02-27
Abstract: 910,941. Linear dimension gauges. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 27, 1959 [Feb. 27, 1958], No. 6900/59. Class 106 (2). A device for measuring the displacement of a body, comprising a resilient member of known elastic characteristics and a datum member movable in opposition thereto, means being provided for giving remote indication of the force exerted by the datum member upon the resilient member when the resilient member is located against the body and the two members are in balance at two predetermined positions of the datum member a fixed distance apart, the indicating means providing constants for the gauge at the two predetermined positions. The device is used for measuring the expansion of the graphite core 1 of a nuclear reactor, when subjected to nuclear radiation. A bellows 7 attached to the outer wall 2 of the reactor has an end plate 6, a spring 5 being mounted between the plate 6 and a rigid plate 4 inserted in a recess 3 in the core 1. A member 10 is also carried by the end plate 6 and moves between fixed contact points 11, 12, an electric circuit being made when these contacts are touched. In use, gas under pressure is supplied through a pipe 13 and the pressures required to bring the member 10 into contact with the points 11, 12 are measured before the reaction has started. When it is desired to know the change in size of the core 1, the pressures required for the above purposes are again measured. From these results the increase in size of the core can be deduced, as can the change in the value of the Young's modulus of the material of which the spring 5 is made. In another embodiment, a second spring similar in construction to the first, but of a different length, is mounted inside the bellows 7 between the end plate 6 and the fixed wall 8. This is stated to eliminate errors due to changes in the spring when it is subjected to nuclear bombardment.
Patent GB-198453-A (GB)
Title: Improvements in or relating to means for securing the heads of brushes and the like to the stales
IPC: B25G3/12
Filed: 1922-03-09
Abstract: 198,453. Heavey, J. March 9, 1922. Fixing by detachable sockets with toothed and bayonet-joint locking devices.-Means for securing handles 1 in brush and like heads 2 comprises a sleeve or member 3 with spikes 5 adapted to engage the handle and an outer sleeve 7 with spikes 9 adapted to engage the socket when the handle and sleeve 3 are forced into the sleeve 7 placed in the socket, the sleeves being finally locked together detachably by a device such as bayonet slots 10 and pins 6. A spring catch 11 holds the pins 6 in the slots 10. In the arrangement shown in Fig. 1, the tubular sleeve 3 has two or more projecting arms 4 having inwardly turned points 5, and the sleeve 7 has arms 8 with outwardly turned points 9. In the modification shown in Fig. 3, the inner member 3 is formed by spiked arms 4 bent up from a metal blank, and the arms 13 of the outer sleeve 7 are pivoted to the sleeve. Reference has been directed by the Comptroller to Specification 166,830.