baber/WOPTO huggingface dataset:
Patent GB-744110-A (GB)
Title: Improvements in or relating to the preparation of methylol derivatives of condensation resins
IPC: C08G12/46
Filed: 1953-10-28
Abstract: Methylol derivatives of polyureidopolyamides are produced by reacting between 10 DEG  and 100 DEG  C. formaldehyde and the reaction product obtained by first reacting between 150 DEG  and 250 DEG  C. epsilon-caprolactam and one or more alkylene polyamines having alkylene groups of two or three carbon atoms in a mole ratio of from 3 : 1 to 1 : 1 to form a soluble condensate and then reacting between 100 DEG  and 200 DEG  C. with evolution of ammonia, this condensate and urea in a ratio of from one mol of urea for every two amino or imino groups up to an excess of urea for each group. Polyamines specified are ethylenediamine, propylenediamine, diethylenetriamine, triethylenetetramine, pentathylenehexamine, dipropylene triamine, and N,N1-di-(aminoethyl) propylenediamine.  The formaldehyde may be employed in the form of aqueous or alcoholic solutions, or in the form of a revertible polymer.  The hydroxymethyl derivatives may be converted to alkoxymethyl derivatives by reaction with an alcohol, preferably an alkanol containing not more than eight carbon atoms; an alkoxymethyl group from a short-chained alcohol can be reacted with a higher boiling alcohol in the presence of an alcoholysis catalyst to effect transetherification.  The products may be employed in treating paper and textiles, and in coating compositions, for example in admixture with an alkyd resin and titanium dioxide, and may be used in the form of solutions in water, ethanol, and butanol.ALSO:Textile materials made from nylon, rayon, cotton and wool are treated with aqueous solutions of hydroxymethyl derivatives of polyureidopolyamides which are made by reacting between 10 DEG  and 100 DEG C. formaldehyde and the reaction product obtained by first reacting between 150 DEG  and 250 DEG C. epsilon-caprolactam and one or more alkylene polyamines having alkylene groups of two or three carbon atoms in a mole ratio of from 3:1 to 1:1 to form a soluble condensate and then reacting between 100 DEG  and 200 DEG C. with evolution of ammonia this condensate and urea in a ratio of from one mole of urea for every two amino or imino groups up to an excess of urea for each group.  The textile materials may also be treated with alkoxymethyl derivatives of the polyureido-polyamides obtained by reacting the hydroxymethyl derivatives with alcohols.
Patent GB-1477005-A (GB)
Title: Method for producing a stator stack
IPC: H02K1/16
Filed: 1974-07-05
Abstract: 1477005 Core constructions NIPPON DENSO CO Ltd 5 July 1974 29861/74 Heading H2A [Also in Division B3] A method of producing a stator stack 11, Fig. 6, for an electrical machine comprises stamping out a plurality of slots 2, Fig. 4, along one edge of a steel strip 1, deforming areas of the strip to provide a plurality of projections 6 on one side 5 of the strip and indentations 8, Fig. 5, on the opposite side 7 of the strip, winding the strip on edge to form a helix to align the slots and centre the projections and indentations of adjacent coils of the helix, resistance welding the individual coils together to form a stack 11, and pressing the end faces 12, 13 of the helix to form flat, parallel ends. Each indentation 8 comprises an annular recess 9 and a blind bore 10 having a corresponding shape to the projection 6 but having a different volume. After the slots 2 are aligned to form a plurality of grooves extending parallel to the axis of the helix, electrodes 14, 15 are disposed on the projections to weld the stack together.
Patent GB-1421600-A (GB)
Title: Process for the production of aromatic diamines
IPC: C07C209/36
Filed: 1973-06-22
Abstract: 1421600 Aromatic diamines and aromatic nitro compounds SUMITOMO CHEMICAL CO Ltd 22 June 1973 [23 June 1972 (5) 27 June 1972 1 July 1972 13 Feb 1973] 29902/73 Heading C2C The invention comprises compounds having the general formula wherein A is -O-R 2  or -NR 3 R 9  in which R 2  is C 2  to C 6  alkyl or aralkyl and R 3  and R 9  are each hydrogen or a C 1  to C 6  alkyl optionally substituted by hydroxy, alkoxy or sulphonylamido; R 1  is C 1  to C 6  alkyl; and X is hydrogen, chlorine, bromine, alkyl or alkoxy. The invention further comprises a process for the preparation of a diamine having the formula wherein R 1  is hydrogen or C 1  to C 6  alkyl; R 4  and R 5  are C 1  to C 6  alkyl optionally substituted by hydroxy, alkoxy or sulphonyl-amido; and X is hydrogen, chlorine, bromine, alkyl or alkoxy, comprising the reduction of a compound of the formula Compounds of Formula II may be prepared by alkylating a compound of the formula (which may be prepared by reacting a compound of formula with ammonia or a primary amine) by reacting a compound of the Formula IV with a secondary amine or, when R 5  is a beta-alkyl sulphonylamidoethyl group, by reacting a compound of the formula where Z is an alkyl sulphonyl group with ethanolamine. The compounds of Formula IV may be prepared by reacting a compound of the formula with a compound of the formula R 2 -Cl
Patent GB-480381-A (GB)
Title: Improvements in and relating to lamp fittings
IPC: F21V17/00
Filed: 1936-11-04
Abstract: 480,381. Securing globes to holders. BUCKINGHAM, R. W. Nov. 4, 1936, No. 30005. [Class 75 (ii)] A light fitting for supporting a hemispherical or other flat based globe flat against a ceiling or the like comprises a dished mounting plate 10 adapted to be fixed against the ceiling with the. dished part extending into the globe, the plate being provided at diametrically opposite parts with a lip 17, 18 adapted to take under the edge of the globe and with a spring controlled clip or the like, one part 24 of which is adapted to take under the edge of the globe and the other part 23 of which is adapted to be engaged by the edge of the aperture in the globe so that by sliding the globe transversely across the plate and then tilting it, the globe may be disengaged firstly from the lip and then from the clip. The lip 18 may extend around the periphery of the plate to subtend an angle of about 45 to 60‹ at the centre. Lamp holder supporting brackets 14 are carried on the under side of the plate.
Patent GB-433171-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/08
Filed: 1934-10-19
Abstract: 433,171. Windscreen -cleaners. KRAMOLIN, L. L. DE, 25, Nassauischestrasse, Wilmersdorf, Berlin. Oct. 19, 1934, No. 30007. Convention date, Oct. 19, 1933. [Class 138 (i)] [See also Group XXXVII] A control arrangement for a power-driven windscreen-cleaner comprises a manual control adapted to start the drive of the wiper and maintain it in continuous operation or alternatively to start the drive only, in the latter case returning to its position of rest after starting of the drive, means being provided for energizing the drive independently of the manual control, such means being operative on movement of the wiper from its position of rest, and being rendered inoperative on completion by the wiper of a predetermined limited number of wiping movements. In the construction shown, a handle m is mounted on a shaft carrying a cam e<1> adapted for engagement with a spring b<1> which is normally out of contact with the inner surface of a tube a<1>. The cam is of the form shown in Fig. 3 so that if the handle m is turned in one direction indicated by the arrow l, contacts a<1>, b<1> are closed and a circuit is completed for an electric motor i which operates the wiper until the circuit is opened by moving the handle m to its normal position. If the handle is moved in the direction j and released it immediately returns to normal position so that the motor circuit has been closed only for a short time. This is sufficient to initiate operation of the wiper, the operation being continued by means of switching mechanism placed adjacent the wiper blade. This mechanism comprises a metal tube a adapted to make contact with a spring b and thereby close a circuit in parallel with the manuallycontrolled circuit already described. The contacts a, b are separated by a cam e when an arm h is engaged by the wiper blade at one end of its traverse. The result is that on turning the handle m in the direction j and releasing it, the wiper moves through a complete oscillation and stops on returning to its parked position. A larger predetermined number of oscillations may take place before interruption, by the provision of a ratchet wheel adapted to be operated by the wiper, the wheel acting through a cam or like means on the lever g. The spring contact automatically - operated switch may be replaced by mercury switching tubes.
Patent GB-207970-A (GB)
Title: Improvements in and connected with covers for wash-hand basins
IPC: A47K1/02
Filed: 1922-11-04
Abstract: 207,970. Burnett, J. Nov. 4, 1922. Desks and tables combined with or convertible into receptacles; washstands; dressing tables.-A washstand has a flexible, sliding cover for a lava tory basin. The flexible cover F slides down in grooves E in the sides B of the casing to expose the basin A beneath which are arranged small cupboards G or a panel H to hide the water pipes. The cover F may serve as a desk, and the tops B<1> of the sides B may be hinged. The cover F may be arranged to slide up behind a splash panel and mirrored writing and dressing cabinet J<1>. The hinged part B<2> may turn to form a horizontal top for a dressing table and is held in this position by the engagement of a movable pin K in a ledge L in the casing. The cover F and hinged top B' of the sides are held in position by spring catches.
Patent GB-231915-A (GB)
Title: Improvements in or relating to controls for engines or vehicles
IPC: B62M25/04
Filed: 1923-11-30
Abstract: .231,915. Laslett, H. T. Nov. 30, 1923. Control mechanism.-In vehicle control mechanisms of the kind in which a Bowden or like cable or rod is attached to a block sliding in an axial slot in a. fixed member and engaging a. spiral or like groove or slot in a rotary handlebar or like grip, the axial slot is formed in a sleeve secured to the outside of the handlebar by means of a clamp provided with a hole through which the cable or like transmission element passes, the rotary grip either in itself or in conjunction with a rubber or other covering provided thereon, wholly enclosing the fixed sleeve and the block sliding therein. In the form shown in Fig. 3, the axial or longitudinal slot B<4> is formed in a sleeve B secured to the handlebar A by a split clamping ring B<2> formed with a hole through which the cable D passes and a sealing B' for outer Bowden casing. The inclined slot E<3> is formed in a rotary sleeve, surrounding the fixed sleeve at E and reduced to seat upon the handle bar at E<2>, being retained in position thereon by a disc or stop F secured in the handle bar end by a screw F<2>. The rotary sleeve is provided with a rubber hand grip G the end of which may be flanged at G<2> to cover the disc F. A thin metal shield E<4> may be interposed between the rubber grip and the slotted part E<3>. A block C slidably mounted in the slot B<4>, is formed with a notch for the reception of the nipple D<2> upon the end of the Bowden cable, and with a projection, preferably in the form of a hardened steel roller C<2>, to engage the inclined slot E<3>. The slot E<3> may be of varying inclination, and a pointer may be provided upon the rotary grip to indicate the movement thereof. In a modification, Fig. 4, the fixed longitudinally slotted sleeve B is formed integrally with the split clamping ring B<9> and is counterbored to receive the rotary sleeve, the slotted part H<2> of which lies between the sleeve B and the handle bar whilst a sleeve H<3> attached at H<4> to the rotary sleeve together with the rubber grip G, completely encloses the fixed sleeve B. A pin K in the sleeve or clamp B engaging a circumferential slot H<5> in the rotary sleeve, prevents axial displacement thereof. The friction between the rotary sleeve and the handle bar may be regulated by means of a milled nut J engaging the slit tapered end of the sleeve, the rubber grip being folded back to give access. Specification 220,859 is referred to.
Patent GB-964065-A (GB)
Title: Process for increasing the filler-retention of paper
IPC: D21H17/54
Filed: 1962-08-07
Abstract: Chemical products produced by reacting less than 1 mol and preferably between 0.8 and 0.95 mol of epichlorohydrin or of -dichlorohydrin with 1 mol of a di- or polyamine the amino groups of which are separated by at least 3 carbon atoms, are added to paper pulp in order to increase the degree of retention in the paper product of fillers e.g. titanium dioxide and organic colouring pigment which are also added to the paper pulp. Di- or polyamines which are particularly suitable include Y,Y1-diaminopropylalkylamines the alkyl radical of which contains about 1-6 carbon atoms, such as Y,Y1-diaminopropyl-methylamine and Y, Y1-diaminopropyl - butylamine. Other di- or polyamines on which the reaction products may be based include tri-, tetra- or hexamethylenediamine; 1, 3 - diamino - butane; 2 hydroxyl-1, 3-diaminopropane; dipropylene-triamine; dihydroxy - dipropylene - triamine; tetrapropylenepentamine; N, N1-diaminopropyltetramethylene - diamine; and 1, 6, 11 triamino -n-undecane. To obtain the reaction products referred to the reaction is preferably carried out in the presence of a diluent e.g. water at temperatures between 20 DEG C. and 70 DEG C.ALSO:Chemical products produced by reacting less than 1 mol and preferably between 0.8 and 0.95 mol of epichlorohydrin or of -dichlorohydrin with 1 mol of a di- or polyamine the amino groups of which are separated by at least 3 carbon atoms, are added to paper pulp in order to increase the degree of retention in the paper product of fillers e.g. titanium dioxide and organic colouring pigment which are also added to the paper pulp. Di- or polyamines which are particularly suitable include g ,g 1-diaminopropylalkylamines the alkyl radical of which contains about 1-6 carbon atoms, such as g ,g 1diamino-propyl-methylamine and g ,g 1 diaminopropyl-butylamine.  Other di- or polyamines on which the reaction products may be based include tri-, tetra- or hexamethylenediamine; 1, 3-diaminobutane; 2 hydroxyl-1, 3 diaminopropane; dipropylenetriamine; dihydroxy-dipropylene-triamine; tetrapropylenepentamine; N, N1-diaminopropyl-tetramethylene-diamine; and 1, 6, 11 triamino-n-undecane.  To obtain the reaction products referred to the reaction is preferably carried out in the presence of a diluent e.g. water at temperatures between 20 DEG C. and 70 DEG C.
Patent GB-1468846-A (GB)
Title: Variable magnification zoom lens
IPC: G02B15/16
Filed: 1974-07-08
Abstract: 1468846 Zoom lens MINNESOTA MINING & Mfg CO 8 July 1974 [9 July 1973] 30245/74 Heading G2J A zoom lens e.g. for a photo-copier and providing variable magnification in a short, fixed object plane to image plane distance comprises a lens barrel 12 containing a prime lens 14 and a low-power air-spaced doublet 16 co-axial with and at one end of said prime lens, one of the elements of the doublet 16 being supported for axial movement relative to the barrel 12. In use, the doublet 16 and the prime lens 14 combine to provide a plurality of magnifications, e.g. 1À00-0À61, upon synchronized movement of the barrel 12 and the movable element of the doublet 16 to a plurality of predetermined correlated positions.
Patent GB-365152-A (GB)
Title: Improvements in or relating to lubricating devices
IPC: F16N7/30
Filed: 1930-10-09
Abstract: 365,152. Condensation lubricators. BLISS, J. and WAKEFIELD & CO., Ltd., C. C., 30, Cheapside, London. Oct. 9, 1930, No. 30313. Addition to 299,625, [Class 12 (iii), Lubricators &o.]. [Class 12 (iii).] Condensate in a chamber 12 to which steam is supplied through an inlet 10 past a valve 11 passes down past a valve 13 and through passages 14 .. 17 into a lubricant chamber 40, displacing lubricant therefrom through passages 18, 20 under the control of a valve 19 to adjustable jets 22 discharging through passages 24 into conduits 27 which lead to the parts to be lubricated and to which steam is admitted from the chamber 12 through passages 25, 26, the valves 11, 13, 19 being actuated by a single operating arm 35. The arm is secured to the spindle of the rotary valve 19 and is connected by a link 29 to an arm 30 on a shaft 31 carrying cams 32, 33 actuating the valves 11, 13. A jockey valve 112 within the valve 11 opens prior to the opening of the other valves.
Patent GB-612117-A (GB)
Title: Improvements in or relating to d.c. amplifiers and signal maintaining circuits associated therewith
IPC: G01S1/02
Filed: 1945-11-13
Abstract: 612,117. Valve amplifying circuits. PHILCO RADIO & TELEVISION CORPORATION. Nov. 13, 1945, No. 30387. Convention date; Sept. 1, 1944. [Class 40 (vi)] A D.C. amplifier is associated with means for maintaining an output during short periods when a sporadic signal is absent. Pulse radar signals are applied to detector circuit 10 and the time constant of elements 14, 15 is considerably longer than the interval between pulses so that the input to amplifier 16 is substantially a direct voltage with amplitude depending on the amplitude of the pulses. During the incidence of a normal signal, diode 21 conducts to short-circuit high resistance 19 and produce a relatively short time constant charging path for capacitor 22. If the input pulses fade, the anode voltage of valve 16 rises to cut off diode 21. Capacitor 22 is now in a long time constant circuit and maintains the grid voltage of output cathode follower 20 constant during the fading period, at a level determined by potentiometer 26. Specification 612,119 is referred to.
Patent GB-265146-A (GB)
Title: Improved manufacture of a glycerine poor in poly-glycerines and containing di-glycerine
IPC: C11D19/00
Filed: 1926-12-01
Abstract: 265,146. Henkel et Cie, Ges. Jan. 26, 1926, [Convention date]. Diglycerine containing little polyglycerines is obtained by heating glycerine with the addition of tantalum, thorium or magnesium oxides, or mixtures of these oxides as polymerization accelerators and with or without other accelerators already known. Neutral gases such as carbon dioxide, nitrogen or hydrogen may be passed over or through the reaction mass under pressure during the heating. In an example, a diglycerine particularly intended for dynamite glycerine is formed by heating glycerine with a small amount of magnesium oxide in a closed vessel, provided with a stirring device and inlet and outlet pipes for a current of carbon dioxide, further small quantities of the oxide being added at intervals during the heating.
Patent GB-631515-A (GB)
Title: Improvements in and relating to lap boards, on which lengths of cloth are folded
IPC: B65H75/06
Filed: 1947-11-18
Abstract: 631,515. Faced corrugated paper pieceboards. ROSTRON & SONS, Ltd., J., and ROSTRON, C. Nov. 18, 1947, No. 30509. [Classes 42 (ii) and 96] A piece-board about which cloth is folded is made by folding the sides 10 and ends 8 of a corrugated cardboard blank so as to enclose one or more sheets of corrugated board as packing, and securing by glued paper strips laid over the edges, the whole board being covered with paper glued on to provide a smooth external surface.
Patent GB-469533-A (GB)
Title: Toy weapon
IPC: A63H5/04
Filed: 1936-11-09
Abstract: 469,533. Obtaining light by friction. MARX & CO., Ltd., L. Nov. 9, 1936, No. 30578. Convention date, Nov. 23, 1935. [Class 75 (i)] [Also in Group XV] In a toy gun wherein a two-part trigger 64, 66 actuates a bar for operating both the noise-making and spark-producing mechanisms, the sparks are produced by an abrasive element 48 moving over a flint 46 in a holder 50 secured in position by a strap 54.
Patent GB-536693-A (GB)
Title: Improvements in or relating to circuit-breakers with butt contacts
IPC: H01H1/22
Filed: 1939-11-22
Abstract: 536,693. Switches, partly electromagnetic ; contacts. REYROLLE & CO., Ltd., A., and ROBERTSON, A. T. Nov. 22, 1939, No. 30599. [Class 38 (v)] An arrangement which provides for the maintenance of butt-contact pressure by a spring H and magnet J as wear of the contact occurs, comprises a support D with a fixed pivot E, a movable-contact lever C pivoted to D at D' and embraced by J, and a toggle F. G. which is pivoted to C and D at C<1>, D<2>, respectively, the spring H being enclosed between G and D, or alternatively between G and C so as to exert an additional pressure directly on the contacts. When the support D is rotated to closed position, the contacts A. B engage with the toggle nearly straight so that the resulting mechanical advantage of the magnet and spring H as the support D continues to rotate, is a maximum. Rotation of lever C however moves the toggle away from its nearly-extended position, so lessening the mechanical advantage. Magnet J co-operates with an armature K on lever G, whereby the mechanical advantage also maintains the contact-pressure against electromagnetic blow-out forces.
Patent GB-935081-A (GB)
Title: Improvements in or relating to machine tool spindles
Inventor: DAWSON EDWARD CLIFFORD COLIN
IPC: B23B31/11
Filed: 1958-09-25
Abstract: 935,081. Machine tool details. EDWARD DAWSON (ENGINEERS) Ltd. Sept. 24, 1959 [Sept. 25, 1958], No. 30601/58. Class 83 (3). In a milling &c. machine, the tool arbor is secured in a cylindrical bore in a bush by a draw-bar, the bush being externally tapered and secured in the machine spindle by another drawbar. In one form, bush 2, Figs. 1, 2, is secured in spindle 1 by a hollow draw-bar 3, axially movable by a nut 3c. The tool is placed on a arbor 4 having a key 4b which fits in a keyway on the tool, and a keyway 2d in the arbor, the arbor then being engaged by the screwed end 5a of a second draw-bar 5 operated by a nut 5b. The arbor may have a chuck secured thereto, or the end 4a may be replaced by a collet which is actuated by an internallybevelled member, secured to end 2a of bush 2. In a modification, the arbor has a boring tool secured thereto, or, alternatively, the arbor may have a tapered bore for morse or like taper tools. Key 4b may be replaced by keys 6<SP>5</SP>b, Fig. 10, when using large shell-type cutters 6<SP>5</SP>c, or by members 6<SP>6</SP>b having two sets of dogs 6<SP>6</SP>d, 6<SP>6</SP>c, Fig. 11. The axial movement of arbor 14, Figs. 16, 17, may be controlled from the tool carrying end by having an adjustable screwed collar 16 with a peg 16a, which engages a bayonet slot 18b in an externally-screwed nut 18 whose axial position is adjustable in bush 2.
Patent GB-1110421-A (GB)
Title: Improvements in or relating to belting
Inventor: WATTS GILBERT ERNEST
IPC: B29B15/12
Filed: 1963-08-02
Abstract: 1,110,421. Impregnating belting. J. H. FENNER & CO. Ltd. 2 Nov., 1964 [2 Aug., 1963], No. 30674/63. Heading DIL. A web is impregnated to form belting by being passed through liquid impregnant, the web, and at least a portion of the impregnant being subjected simultaneously to sub-atmospheric pressure to remove air bubbles from the web. As shown polyvinyl chloride impregnant 2 lies in a bath and is drawn up a tower I by means of a vacuum pump connected to an opening 3. Belting 5 passes through squeeze rollers 6 into the impregnant, up the tower into the low pressure zoneat its top, down the tower and out of the impregnant. The belting is caused to flex over a series of rollers 7 in the low pressure region to assist in expelling air bubbles from the belt. In an alternative from the run of the belting in the tower is reversed below the surface of the impregnant i.e. it does not leave the impregnant.