baber/WOPTO huggingface dataset:
Patent GB-1281752-A (GB)
Title: Unsaturated polyesteramides and their production
Inventor: JAIN DEVENDRA
IPC: C08G69/44
Filed: 1969-06-05
Abstract: 1281752 Unsaturated polyesteramides IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Aug 1970 [5 June 1969] 28457/69 Headings C3P and C3R  Hardenable polyesters having improved solvent resistance are derived from one or more diols, at least one of which contains at least one amide group in the chain between the hydroxyl groups, and one or more dicarboxylic acids; at least one of the components containing crosslinkable unsaturation. Preferred polymers are those in which at least 5 mole per cent (based on the total number of diacid and diol residues) of the diacid and/or diol units contain unsaturation and at least some of the diol residues have the Formula (II) where R<SP>1</SP>-R<SP>4</SP> are each selected from hydrogen atoms and monovalent hydrocarbon groups or R<SP>1</SP> and R<SP>2</SP> and/or R<SP>3</SP> and R<SP>4</SP> in combination represent a divalent hydrocarbon group, R<SP>5</SP> and R<SP>7</SP> are each divalent organic groups containing up to 11 atoms between the terminal valencies, a is 0 or 1, Z and Z<SP>1</SP> are each -CO.NH- or -NH.CO- or are both -NH.CO.NH- and R<SP>6</SP> is a divalent organic radical having up to 12 atoms between the valencies or a direct link, in which case Z must be -NH.CO- and Zi -CO.NH-. The polyesteramides are prepared in the normal manner from the diol corresponding to Formula (II), other diols if required, and dicarboxylic acid(s), the latter usually containing the unsaturation. The diols are the reaction products of e.g. (a) an aminoalcohol and a dicarboxylic acid, (b) a hydroxyacid and a diamine, (c) an aminoalcohol and a hydroxyacid, (d) an aminoalcohol, an aminoacid and a hydroxyacid or (e) an aminoalcohol with a carbonic acid derivative or a di-isocyanate. Polyesters in which at least 10% of the diol units have the formula corresponding to (II) and at least 5% of the diol and/or diacid units are unsaturated are claimed per se. The examples describe the use of N,N<SP>1</SP>- di(6 - hydroxycaproyl)hexamethylenediamine, N,N<SP>1</SP> - di(2 - hydroxyethyl)oxamide, N - (6- hydroxycaproyl)isopropanolamine, N,N<SP>1</SP>-di(2- hydroxypropyl)isophthalamide and N,N<SP>1</SP>-di(6- hydroxyhexyl)urea as the amide-containing diol. These are reacted with propylene glycol and maleic anhydride or fumaric acid and also, in some examples, phthalic anhydride. A freeradical inhibitor is added to prevent premature gelation. Hardenable compositions useful e.g. for making glass fibre laminates, comprise a polyesteramide according to the invention together with a vinyl monomer, e.g. styrene or 2-hydroxyethyl methacrylate, and a hardening catalyst.
Patent GB-1471191-A (GB)
Title: Electronically imaging apparatus and method
IPC: H03H9/25
Filed: 1974-06-27
Abstract: 1471191 Wave energy imaging systems LELAND STANFORD JUNIOR UNIVERSITY BOARD OF TRUSTEES 27 June 1974 [16 July 1973] 28582/74 Heading G1G [Also in Divisions H3 and H5] A radiant energy transmitting and/or receiving arrangement with a focus comprises a linear array of transducers coupled to respective mixers; a tapped delay line with its taps connected to respective ones of the mixers; terminal supplying a common signal to or receiving a combined signal from all the mixers; and means for propagating down the line a signal such that the tapped delayed signals have a non-linear tap-to-tap phase variation which corresponds to the transducer-totransducer phase variation of the radiant energy transmitted by or incident on the array respectively to or from the focal point. In the Fig. 5 embodiment acoustic energy from an object to be imaged is received on a transducer array comprising a Piezo-electric slab 42 with orthogonal sets 43, 44 of electrodes. Taps 47, 52 on surface acoustic wave, SAW, delay lines 46, 53 are coupled to the electrodes and signals W 1 , W 2  are launched into the delay lines to provide horizontal and vertical scan components for the imaging. To provide array focusing, the signals W 1 , W 2  are in the form of chirp frequencies so that the signal phases at the equi-spaced delay line taps have a quadratic distribution which compensates for the different path lengths to the transducer array elements for energy received from a focused point on the object. The focused point is scanned at a rate equal to the acoustic velocity in SAW lines 46, 53: hence it scans along a line at 45 degrees to the vertical. Generator 62 is used to displace this line by successively changing a delay between the respective launchings of signals W 1  and W 2 . Diodes 51 mix the electrical signals transduced from the incident acoustic energy with the signals from the delay line taps to provide a sum-or-difference frequency output signal which filtered out and fed to a CRT display of the object. Choice of the rate of change of frequency of signals W 1 , W 2  determines the focal distance. For enhancing the image contrast, when the object is a "phase object" producing a phase distribution but a substantially uniform acoustic amplitude over the array 42, at least the central frequency part of the chirp W 1  or W 2  is reduced in amplitude or frequency. This is analagous to dark field, Schlieren or phase-contrast techniques in optical imaging. Alternative embodiments are described in which:- (a) the two-dimensional array is made up of N parallel one-dimensional arrays with N respective tapped delay lines Fig. 6 (not shown) or a common tapped delay line Fig. 7 (not shown) for scanning along each one-dimensional array, (b) the array is  one-dimensional only Figs. 1 and 4 (not shown), (c) the mixer diodes are series-connected (Figs. 1, 6, 7) rather than parallel-connected, (d) the delay lines are electrical instead of SAW ones. The invention is applicable also to micro-wave imaging.
Patent GB-504896-A (GB)
Title: Improvements in or relating to sponge rubber brushes
IPC: A47L1/06
Filed: 1938-10-04
Abstract: 504,896. Mops. METCALF, R. K. Oct. 4, 1938, No. 28805. Convention date, Jan. 31. [Class 19] A scrubbing and brushing element comprises two similar rectangular blocks 1, 2 of sponge rubber adhesively secured together with a rigid reinforcing member 4 inserted therebetween. The member 4 is of rigid material of the same shape as the blocks, but slightly smaller and is extended outwards to connect with a handle 5. The device used may be adjustable or fixed for cleaning wall paper, painted walls, floors, clothing, and the like.
Patent GB-776987-A (GB)
Title: Dust filters for radiators and water heaters
IPC: F24F8/108
Filed: 1954-10-07
Abstract: 776,987. Air and waste gases, purifying. UPTON, J. A. and WRIGHT, A. A. Sept. 26, 1955 [Oct. 7, 1954], No. 28868/54. Class 126 [Also in Group XIII] A filter for removing dust &c. from hot air rising from water heaters comprises filter cloth interposed between two wire gauze sheets. In the form shown, gauze bowls 1, 3 with reinforcing rings 4, 5 enclose an intermediate bowl 2 which comprises a layer of filter cloth attached to a frame composed of a ring 8 and bracing, strips attached to it. The ring 4 has inwardly projecting lugs which engage the water heater, and outwardly projecting lugs which support the rings 5, 8. The bowls 1, 2, 3 are held together by a nut 15 and screw 13 which has associated spacing washers 12 and a flange 14 to rest on the heater.
Patent GB-1222382-A (GB)
Title: Swash plate type hydraulic pumps and motors
Inventor: WILLIAMS LEONARD RALPH
IPC: F01B3/00
Filed: 1967-06-22
Abstract: 1,222,382. 222, 382. Reciprocating piston pumps or motors. BOULTON PAUL AIRCRAFT Ltd. May 30, 1968 [June 22, 1967], No.28922/67 Heading F1A. In an axial cylinder reciprocating piston pump of the type in which hydraulic fluid passes to and from the cylinders via ports in a flat valve plate, a rotating cylinder block 14 has a plurality of cylinders 15 each of which contains a pair of oppositelyacting pistons 16,17 that engage inclined surfaces of respective swash-plates 10, 9. A support member 8 is integrally formed with the swash-plate 10 and co-operates with a taper bearing 25 and a recess 24 to locate the block for rotation. The valve plate 29 has arcuate main ports 48, 49 and is floatably supported by sleeves 39 in the support member 8 to engage a surface 31 of the block. Ports 62 in the block connect with the cylinders and as the block rotates the ports sweep out an annular path and pass successively over one main port, the intervening "bridge" of the valve plate, and over the other main port. Hydraulic balancing is achieved by the provision of a pair of piston and cylinder units 54, 56 and 57, 59 that communicate with bores 55, 58 respectively in the valve plate, such that, as the pressure tending to force the valve plate away from the block surface 31 increases, the reaction of the piston and cylinder units tending to restore the valve plate also increases. (For figures see next page)
Patent GB-450796-A (GB)
Title: An improvement relating to the production of leather
IPC: C14C9/00
Filed: 1935-10-21
Abstract: 450,796. Making leather. TITANINEEMAILLITE, Ltd., and ANDERSON, H., Colindale, London. Oct. 21, 1935, No. 28991. [Class 76] Vegetable tanned leather is treated, in order to prevent discolouration during storage, with a solution, suspension or paste of a lead compound, including colloidal lead, which is at least appreciably soluble in water and without application of any agent which converts lead into an insoluble form. The lead compound used is conveniently a salt of a weak organic acid such as acetic acid. Specification 377,068 is referred to.
Patent GB-1520143-A (GB)
Title: Elastic surface wave filter
IPC: H03H9/64
Filed: 1975-07-10
Abstract: 1520143 Surface wave filter devices NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 10 July 1975 [15 July 1974] 29065/75 Heading H3U To improve the ratio of the attenuation in the pass band to that in the rejection band of a surface wave filter device, the length Dm of the region in which the fingers e 1 , e 2  of a transducer T overlap is arranged to be constant across the transducer; where the region is arranged in parts, e.g. Fig. 10, the sum of the lengths of the parts is constant. The region may be shaped as a wide or narrow parallelogram, and the sloping sides or parts thereof may be modified to follow a sinusoidal curve (Figs, 8, 9, not shown). As shown, a single output transducer R is provided, but two output transducers (R, R', Fig. 11) may be arranged one on either side of transducer T and connected in parallel to a load 4. In addition inductively loaded reflection transducers (Q, Q', Fig. 13, not shown) may be arranged on the sides of the output transducers remote from transducer T.
Patent GB-429020-A (GB)
Title: Improvements in and relating to electrical testing instruments
IPC: G01R31/25
Filed: 1933-10-20
Abstract: 429,020. Current and pressure meters; combinations of instruments; detecting faults. WESTON ELECTRICAL INSTRUMENT CO., Ltd., Kingston By-Pass, Surbiton, Surrey.-(Weston Electrical Instrument Corporation ; Newark, New Jersey, U.S.A.) Oct. 20, 1933, No. 29092. [Class 37] A selector device 26 for use with instruments for testing thermionic valves used in radio receivers comprises a plurality of sockets 28 adapted to receive a valve or an adaptor which will enable a valve to be mounted on the device, terminal elements or sockets 33 connected to the sockets 28, and a length of multiple cable 30, also connected to the sockets 28, which terminates in a plug 32 adapted to be inserted, directly or through an adaptor, into the valve holder, from which the valve being tested has been removed. The selector device is removably mounted on the instrument by means of spaced pins which engage sockets on the instrument. Separate selector devices may be provided for each type of valve, or a single selector device may be used in combination with pairs of adaptors for each type of valve, one adaptor of each pair being provided on one side with pins plugging into the sockets 33 and on the other side with sockets or contacts for receiving the valve, while the other adaptor of each pair has sockets for receiving the pins 31 on the plug 32 and pins or other contacts for engaging the valve holder. The instrument 20 is adapted to measure a plurality of ranges of voltage and current by means of shunt or series resistances controlled by a switch 22. A rectifier may also be included in the casing 21, for use in alternating current measurements, press-button switches 23, 24 being provided for use in taking direct or alternating current readings. A battery may be included so that the instrument may be used as an ohmmeter. The connections from the selector device to the instrument are made by means of pins 48 on jumper leads 49.
Patent GB-1424886-A (GB)
Title: Spiropyran compounds and their use as dye precursors for copying paper
IPC: C07D491/107
Filed: 1973-06-20
Abstract: 1424886 Spiropyrans for copying processes BADISCHE ANILIN- & SODA-FABRIK AG 20 June 1973 [21 June 1972] 29228/73 Heading C4P [Also in Division D2] Spiropyrans have the formula in which R<SP>1</SP> is H, alkyl, cyanoalkyl, carboxyalkyl, methoxyalkyl or cycloalkyl each of 1 - 6C, and phenyl, R<SP>2</SP> is alkyl of 1 - 4C, A is a benzene nucleus opt. subs. by Me, Cl, Br, or alkoxy of from 1 - 4C, and B is a benzene or naphthalene nucleus opt. substd. by Cl, Br, nitro, C 1-5  alkyl, C 1-5 , alkoxy, di-(C 1-5 )-alkylamino or C 1-5 -alkoxy-substituted carbonyl. Some ten compounds are described. They are prepared by condensing the heterocyclic bases with o-hydroxybenzaldehydes or o-hydroxynaphthaldehydes in a cyclization reaction. The spiropyrans formed may be dissolved in non-polar or weakly polar solvents, and give intense red to blue colorations when acid substances, including kaolin and similar materials. The spiropyrans may be used as dye-forming components, possibly encapsulated, for pressure-sensitive recording materials, particularly copying papers.
Patent GB-1308005-A (GB)
Title: Change speed gear train arrangements
IPC: F16H3/66
Filed: 1970-04-21
Abstract: 1308005 Change-speed gear NISSAN MOTOR CO Ltd 21 April 1970 [4 June 1969] 29254/72 Divided out of 1308001 Heading F2D Three reduced ratios, direct-drive and one reverse, are provided by three sun-ring-planet trains 12, 13, 14, identical or not, interconnected as shown, drive issuing to an ouput shaft 11 from C2, R3, input from 10 being selectively applied through three clutches K1, K2, K3, respectively, to C1 for second and fourth ratios, to R1, R2 for first and to S2, S3 for fourth and reverse, two brakes B1, B2 (the latter optionally with a parallel one-way brake), being applied respectively to S2, S3 for third and reverse, and to C3 for first and second. Ratios are specified and a graphical solution shown. Input and output shafts may be transposed.
Patent GB-315155-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/20
Filed: 1928-10-11
Abstract: 315,155. Crawford, H. J. Oct. 11, 1928. Boxes made from special blanks.-A box or carton is formed from a rectangular blank formed with two sets of scores and cuts at right angles, each set being parallel to a diagonal of the blank and being so made that the blank is folded solely about lines parallel to its diagonals in the formation of the box. As shown, the one set of scores 17, 18 and cuts 16, Fig. 1, are at right-angles to the other set of scores 14, 15 and cuts 13, and in forming the box, Fig. 3, the sections 19 are folded at right-angles to the sections 20 which are then turned up at right-angles to the bottom 1 to form the ends of the box, while the sections 2 are turned up at right-angles to the bottom 1 to overlap the sections 19 and form the sides of the box; the parts 21 are then turned at rightangles to the sections 19 and the sections 22, 26, 27 are turned down to close the box, the corner of the section 27 being inserted in a slot in the section 26 or the corner may be formed as a tongue 24 which is inserted in slits 12 in the section 26.
Patent GB-926421-A (GB)
Title: Improvements in or relating to bark-removing drums
IPC: B27L1/02
Filed: 1959-08-27
Abstract: 926,421. Fluid bearings. ESCHER WYSS G.m.b.H. Aug. 27, 1959 [Sept. 4, 1958], No. 29340/59. Class 12 (1). A horizontal bark-removing drum is mounted in fluid bearings comprising a supporting ring 1, running on fixed arcuate rails 2, a chamber 5 to which water under pressure is admitted through an orifice 6 passing through a base 4, and rubber seals 7. The rails 2, which may be of synthetic plastics material, are supported in members 3 attached to the base 4. The rubber seals 7 are surrounded by bands 8.
Patent GB-427866-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H31/28
Filed: 1934-10-15
Abstract: 427,866. Air break switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Crabb, H. J.; 1282, Franklin Avenue, Wilkinsburg, Pennsylvania, U.S.A.) Oct. 15, 1934, No. 29409. Convention date, Nov. 11, 1933. [Class 38 (v)] Contact8 ; springs, arrangement of.-A switch comprises a pair of blade members 9, 11 actuable into and out of engagement with contact means 7, adjacent to which they are joined together by means including a linkage. When the blades are moved to closed position, the linkage acts to cause at least one blade intimately to engage the contact means. The arrangement provides high contact pressures, and means for circumventing the action of corrosion and ice formation. The insulator 3 supports the fixed contact 7 which, Fig. 5, comprises a jaw 21, opening 23, and bosses 25 serving to lock the movable contacts closed. The rotatable shaft 31 carries the insulator 5, the cap 33 of which supports a shaft 35 having a pair of cranks 37, 39, to which are pivoted the rods 9, 11 having the contacts 61 secured to them as by welding. A compression-spring plunger 47 pivoted to the shaft 35 and to a projection 59 on the rod 9 urges the latter towards the fixed contact 7. When the shaft 35 is rotated anti-clockwise, Fig. 3, to open the switch, the rods 9, 11 are moved by the cranks 39, 37, respectively towards and away from the contact 7 and also, owing to the links 63, towards one another whereby they disengage the sides of opening 23 with a wiping action. Further rotation of 35 causes them to move to the left, Fig. 3, out of the jaw 21 into the open position. The closing movement is similar, the rods 9, 11 first moving between the bosses 25 and then being spread apart by links 63 into wiping engagement with 21. The rod 9 is crooked at 45, Fig. 3, so that it can move against the shaft 35 as a stop, in which position the mechanism is slightly over-centre and the pressure of the spring-plunger 47 acts therefore in the closing direction. In the modified contact structure shown in Fig. 7, the fixed contact 75 is in the form of a rod having a stop 77, a swelling 83, and bent-over end 85, and the movable contacts 87, 89 are scissor-shaped and interlinked at 97. The arrangement is such that, in opening, the contact 87 moves to the right and away from contact 75, whereas 89 first slides to the left without disengaging contact 75 and then, as the rods move together to the full-open position, 89 slides along contact 75 and breaks circuit at a point remote from the normal contact surfaces. Fig. 12 shows in section a modification in which each of a pair of upstanding members 103 is undercut at 105 to form engaging surfaces for the movable contacts 97, 99, the links being disposed between the members 103 and " spread to effect disengagement. If a single member 103 is employed, Fig. 13 (not shown), a pair of links is disposed on either side thereof. Only one of the rods need be movable with respect to the other.
Patent GB-935330-A (GB)
Title: Improvements in or relating to vacuum flasks
IPC: A47J41/02
Filed: 1958-09-13
Abstract: 935,330. Vacuum-jacketed vessels. L. LESLIE-SMITH. Sept. 14, 1959 [Sept. 13, 1958], No. 29411/58. Class 64 (2). An annular sealing member 9 of rubber, polyethylene or polyamide is arranged between the neck of a vacuum-jacketed vessel 4 and a pouring lip member 3 which may be formed integrally with the shoulder of a canister containing the vessel and may be shaped as in Fig. 3 to accommodate a push-in bung or have a thread for a screw stopper as in Fig. 6 or be shaped to take a snap-on closure. Instead of the cross-section being of the N-form shown in Fig .3, the sealing member 9 may have a crosssection in the form of an upright or inverted U, an M, Figs. 1 and 2 (not shown), an H or a V. The latter, Fig. 4 (not shown), may have a rib at its outer edge for engagement in a groove at the inner face of the lip member 3, possibly with a snap action since either the member 9 or the member 3 or both may be of resilient material. In Fig. 6, the sealing member 9 fits over the mouth of the vessel 4 and in a similar form, Fig. 5 (not shown), at the top of the member there is a vertical rib which engages in a groove in the shoulder 21 of the lip member 3. The vessel mouth may be force-fitted in the sealing member 9 and an additional sealing member may be used lower down the vessel neck. The sealing member 9 may have two or more skirts for engaging the inside of the pouring member 3 and a further two or more skirts for engaging the bottle 4; it may be reinforced. Specifications 885,987, 885,988, 885,989 are referred to.
Patent GB-825148-A (GB)
Title: Improvements in or relating to washing machines
Inventor: BICKELL STANLEY FENELEY
IPC: D06F21/08
Filed: 1956-09-26
Abstract: 825,148. Washing-machines. PARNALL (YATE) Ltd. Aug. 30, 1957 [Sept. 26, 1956], No. 29460/56. Class 138 (2). A washing-machine, with a solid wall container 1 for the washing and mounted for reciprocatory or rotary motion selectively, comprises, integrally formed with it, or fixedly mounted on its base, an agitator 2 consisting of paddles 3 less in radius than the bottom of the container. A row of holes 6 permits egress of water during rotation for spindrying. The container and agitator may be a one-piece moulding of synthetic resin or of fibre glass bonded with synthetic resin or a metal casting. Formed separately the agitator 2 may be of metal, and it may be shaped to house an electrical heating element, whereas a short or a considerably longer vertical projection may be at its centre. The container, agitator and a driving shaft may form a unit construction.
Patent GB-323067-A (GB)
Title: Improvements in tubular and like conveying systems
IPC: B65G51/44
Filed: 1928-10-12
Abstract: 323,067. Deutsche Telephonwerke und Kabelindustrie Akt.-Ges. Oct. 12, 1928. Addition to 298,580. Electrically operated and controlled by vehicle.-In a pneumatic dispatch or like conveying system receivers adjacent the track controlling track-points operated inductively as described in the parent Specification comprise a number of magnet fields' arranged to operate successively so as to permit high speeds of travel. Fig. 1 shows a system in which the carrier D provided with magnetic rings e influences successively magnets S in pairs and operates through a valve V and relay A a relay N arranged to operate a switch point M and to lock itself over contact 1 until released by the carrier actuating contact k. Failure of the filament of the valve V releases' relay C which switches in a reserve valve VI. Fig. 7 shows a modification in which a moving coil relay H is employed, the currents induced in the magnet S1 exciting the field h1 and those induced in the magnet S2 exciting the coil h2. The magnets may be interspaced with one another, as shown in Fig. 2, to reduce the overall length of the control apparatus. The reluctance of the magnetic circuit may be reduced by employing a brass tube insertion F1, Fig. 19, of reduced section having magnetic pole insertions E.