baber/WOPTO huggingface dataset:
Patent GB-642471-A (GB)
Title: Improvements in or relating to electric integrating circuits
IPC: G06G7/184
Filed: 1947-08-06
Abstract: 642,471. Valve integrating circuits. MILSOM, F. R., FURZEHILL LABORATORIES, Ltd., and SMITH & SONS (ENGLAND), Ltd., S. Aug. 6, 1947, No. 21457. [Class 40 (vi)] A circuit for integrating the difference between two signals comprises two similar valves and two integrating capacitors, each capacitor having one plate connected to the grid of one valve and the other plate through a phase reverser to the grid of the other valve, the signals being fed respectively to the two grids and the required integral appearing as the difference between the outputs of the two phase reversers. The signals applied to terminals 16 and 17 are fed through resistors 30 and 31 to the grids of valves 26 and 27 and to the integrating capacitors 18, 19. The anodes of these valves are connected through phase reversing valves 29, 28 to the other plates of the integrating capacitors. Due to the large amount of negative feedback on the input valves, their grids and the plates of the integrating capacitors to which the grids are connected remain at a substantially constant potential and an accurate integration of the charging currents appears across the integrating capacitors. The difference between the integrals can therefore be measured between terminals 24 and 25. Resistors 44 and 45 provide negative feedback for " push-push " potentials to prevent selfoscillation.
Patent GB-1506463-A (GB)
Title: Electronic tube
IPC: H01J9/24
Filed: 1975-05-20
Abstract: 1506463 Sealing glass members PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 May 1975 [14 June 1974] 21470/75 Heading C1M [Also in Division H1] In making an electric discharge tube wherein at least one of the components is to be treated in a vessel sealed from the atmosphere, the vessel is composed of at least two parts hermetically sealed against each other at smooth facing surfaces by means of an interposed layer of a galliumcontaining material (e.g. Ga or an alloy thereof containing at least 50% Ga with Pb, Sn and In). The final seal may be reinforced by a metal and/or synthetic resin cover. In making the initial seal the parts are preferably rotated to avoid radial leaks.
Patent GB-449721-A (GB)
Title: Improved fly-catcher and insect-catcher
IPC: A01M1/14
Filed: 1935-07-30
Abstract: 449,721. Catching insects. BIRCH, S. A., Netherfield, Longdown Lane North, Epsom, Surrey. July 30, 1935, No. 21559. [Class 5 (i)] A fly or insect catcher comprises an open frame H provided with a handle E and having a sheet or strip of material, adhesive on both sides, stretched across the open space enclosed by the frame and secured thereto. The adhesive paper may be rolled on a spindle which is removably secured in holes A in the frame. The free end of the paper is passed through a slot B in the end frame member and secured thereto by drawing pins &c. The device can be used for " swatting " flies &c. or it may be suspended by means of a hole D in the handle.
Patent GB-726040-A (GB)
Title: Improvements in or relating to a posture chair
Inventor: HEROLD WALTER FREDERICK
IPC: A47C3/026
Filed: 1953-08-05
Abstract: 726,040. Seats. BASSICK CO. Aug. 5, 1953, No. 21595/53. Class 52 (2). A posture chair of the kind described in Specification 558,309 comprises a tilting seat pivoted adjacent its forward edge to a supporta back connected pivotally to said frame to enable it to have angular movement with respect to the seat and a spring which is compressed by the backward movement of the back and which also serves to mount resiliently the seat. As shown, the chair frame 23 is mounted adjustably on a screwed post 21 having an adjusting nut 22 and the seat is pivoted at 27 to extensions 44 of the chair frame 23. Pivoted at 35 to this frame 23 is a supporting frame or yoke 33, the rear end of which is connected to the seat rear by links 28, the lower ends of which are carried by a pivot 34 which also serves to mount the main back-carrying bracket 31. This bracket 31 has an heightadjusting bracket 30 to which the back 25 is secured and is also adapted to be clamped to an angle-adjusting bracket 32 by clamping bolt 53. Mounted within the yoke 33 is a spring 36, the tension of which can be adjusted by a bolt 37 and nut 39. The spring 36 is provided with a follower 40 pivoted to the chair frame 23 at 35 and a rod 59 having resilient bushings 61 is connected to the back-carrying bracket 31 by links 56 so that on the seat being occupied it tilts rearwardly, causes the yoke 33 to be depressed and through links 56 to cause the follower 40 to compress the spring 36 and so cushion the seat. In addition, backward movement of the back relatively to the seat compresses the spring further until the pressure on the seat back is counterbalanced. Specification 476,840 also is referred to.
Patent GB-803758-A (GB)
Title: Improvements in or relating to cake mixes
IPC: A21D2/18
Filed: 1955-07-27
Abstract: A cake mix contains, in addition to shortening, sugar and flour, carboxymethyl cellulose or a water-soluble salt of carboxymethyl cellulose, preferably a sodium salt having a viscosity of 1200-2000 centipoises in 1 per cent water solution, employed in the proportion of 0.01-1.0 per cent by weight of the dry mix.  According to an example, a mix contains 37 per cent cake flour, 45 per cent confectioner's sugar, 13 per cent emulsifier-containing shortening, 0.20 per cent sodium carboxymethyl cellulose of viscosity 1200-2000 centipoises in 1 per cent solution, dry skim milk, sodium chloride, sodium bicarbonate and sodium acid pyrophosphate, the dry ingredients are mixed, blended with the shortening and packaged.  In use, a batter for baking is obtained by stirring the mix by hand for 150 strokes with egg and milk or water.
Patent GB-988938-A (GB)
Title: Improvements in or relating to travelling wave amplifiers
IPC: H03F7/00
Filed: 1961-06-16
Abstract: 988,938. Parametric amplifiers; tunnel diodes circuits. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. June 16, 1961 [June 27, 1960], No. 21937/61. Headings H3B and H3T. Elements of variable resistance, such as tunnel diodes, are connected either in parallel across a transmission line or in series with the line and are distributed along the line to amplify a signal wave transmitted with a pumping wave. The line may also include variable reactance elements. The line constants and the frequencies transmitted are selected to satisfy the conditions necessary for amplification and for the growth of signal amplitude to be confined to one direction. The pumping wave may have a lower frequency than the signal. The pumping wave may be square. In Fig. 2, L and C represent the inductance and capacitance distributed per unit length along the line. Each individual diode g is biased to a current maximum or minimum of its characteristic so that under the control of the pumping wave, it alternates between positive and negative resistance states. The conditions to be satisfied by the signal, idling and pumping frequencies #1, #2, #3 and by the corresponding phase constants #1, #2, #3 are:- #1 = #2+ #p, #1 = #2 + #p or #2 = #1 + #p, #2 = #1 + #p or #p = #1 + #2, #p = #1 + #2 The diodes may be connected in series in the line as shown in Fig. 3. Parallel and series connections may be used in the same line. Variable reactance elements may also contribute to the gain in the line. When the pump frequency #p is less than either of the frequencies #1, #2 there may be two or more idling frequencies (#1 + #p), (#1 - #p) &c. with an accompanying increase in gain.
Patent GB-1329032-A (GB)
Title: Amorphous and transparent polyamides the preparation and uses  thereof
IPC: C08G69/26
Filed: 1971-04-19
Abstract: 1329032 Laminates INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 19 April 1971 [18 Feb 1970] 22016/71 Heading B5N [Also in Divisions B2 C2 and C3] Al plates are coated with an ethanol solution of a polyamide, or with powdered polyamide; the solvent is evaporated or the powder melted and the plates are then subjected to hot pressing. The polyamide is an amorphous transparent polyamide which contains residues derived from 3-tert-butyladipie acid and from at least one diamine NH 2 -R-NH 2 , where R is an aliphatic, alicyclic, arylaliphatic or aromatic bivalent hydrocarbon radical R may contain 2-20 C. atoms. Also present may be residues of at least one other dicarboxylic acid where A is an aliphatic, alicyclic or aromatic bivalent hydrocarbon radical; these residues may represent at most 90% of the total number of dicarboxylic acid residues. A may contain # 18 C atoms. Also present may be residues of NH 2 -D-COOH, where D is a bivalent aliphatic hydrocarbon radical, e.g. containing 2-19 C atoms. Heat, oxidation, and/or U.V. stability may be provided by of alkyl phosphates or phosphates, or Na or Mn hypophosphite. The polyamide may be dissolved in ethanol.
Patent GB-1397517-A (GB)
Title: Device for protecting a hand from the cold
IPC: A41D13/08
Filed: 1973-05-09
Abstract: 1397517 Gloves SA DU VIEUX COMBRET 9 May 1973 22026/73 Heading A3V A glove for protection from the cold comprises a pocket 11 formed by stitching together two sheets as 12, each comprising an outer skin 14 of natural or artificial leather with a fur lining 15 the pocket including therein a cross-piece 19 which may be gripped by a hand inserted into the glove. In one embodiment the cross-piece 19 is tubular and made of material similar to that of the sheet 12 or of knitted material, and is adapted for use by golfers such that the tubular cross-piece may be slid over the handle of a carriage for golf clubs and retained thereon by laces 31, 34. The cross-piece 19 in the other glove of the pair may be non-tubular and strips 44, 45 of filamentary hook and loop type fastener material may be provided on the gloves to hold the pair together when not in use.
Patent GB-519575-A (GB)
Title: Improvements in or relating to television systems and methods of scanning a field for television and the like
IPC: H04N3/08
Filed: 1938-07-25
Abstract: 519,575. Television. LEMERT, R. D. July 25, 1938, No. 22034. Convention date, July 24, 1937. [Class 40 (iii)] A scanning beam is moved in a succession of parallel paths to scan a pattern, but the successive paths of each pattern are rotated with respect to the paths of the preceding pattern. Thus, in Fig. 1, the chain lines 26 indicate paths of one pattern and the full lines indicate part of the paths of the next pattern. The scanning beam is reflected by the mirrors 23 of a drum which rotates, about the primary axis AA, in bearings in a bracket carried by a base 32 which rotates about a secondary axis BB intersecting' the primary axis and also the mirror reflecting the scanning beam. The mirrors 23 are inclined differently to the axis AA in the usual way. An alternative method of rotating the mirror drum about two axes is described with reference to Figs. 7, 8, 9 (not shown). The Specification as open to inspection under Sect. 91 also refers to radial scanning in intersecting straight or curved lines, Figs. 3 to 6 (Cancelled) (not shown). This matter does not appear in the Specification as accepted.
Patent GB-1005617-A (GB)
Title: Suction cleaners
IPC: A47L5/24
Filed: 1963-06-04
Abstract: 1,005,617. Suction cleaners. E. FABER, R. D. HAHN, H. HAHN, and E. WÍRWAG [trading as MAUZ & PFEIFFER]. June 4, 1963 [June 14, 1962], No. 2206/63. Heading A4F. A suction cleaner comprises a casing consisting of two equally sized half shells 1, 2, which divide it solely in the direction of its longitudinal axis whilst transverse walls 4, 5, 6 are provided one being for the separation of motor and suction spaces M and S respectively, together with means for connecting the half shells 12 to each other and means to support the motor 37. The front and rear walls 4, 6 may carry or comprise the air suction inlet and outlet pieces 13 and 14 respectively, motor switch 26 and current supply cable 27. On an extension 22 of the air inlet connection piece 13 the dust bag 23 may be clamped by means of a spring loaded band clamp 25. The central separating wall 5 is connected to one of the shells and engages with an extension 30 of the carrying handle 31 fitted to the other shell in a force or positive locking manner to clamp the two half shells 1, 2 together so that they may be unclamped only by the deliberate release of a securing means 32. The motor unit 37 is located in a prefoamed polystyrol mounting 38 inset between projections of the casing which supports, insulates and dampens the vibrations of the motor 37.
Patent GB-1055658-A (GB)
Title: Improvements in or relating to the production of a surface finish on chip board and sheets of fibrous materials
Inventor: WICHMANN JOHANN
IPC: B05D7/06
Filed: 1964-05-28
Abstract: 1,055,658. Surfacing chipboard etc.; laminates. VEREINIGTE ABZIEHBILDERWERKE VEB. May 28, 1964. No. 22116/64. Headings B5A and B5N. Sheets 1 of chipboard or like fibrous material are coated on both sides with a liquid surfacing agent composed of a mixture of synthetic resins with a filler, the coating is pre-dried, e.g. by infra-red lamps 7, and then calendered by calendering rollers 8, 8<SP>1</SP> and finally the sheets are subjected to heat and pressure in a press I<SP>6</SP> to cure the resin. The filler may be calcium carbonate. A sheet 10 of paper bearing a printed wood pattern may be applied simultaneously with the calendering. End discs on the rollers 8, 8<SP>1</SP> (Fig. 2, not shown) determine the thickness of the resin coating.
Patent GB-1180890-A (GB)
Title: Aminohalogeno-Phenylethanolamines, their preparation and Pharmaceutical Compositions containing them
IPC: C07D221/24
Filed: 1968-05-09
Abstract: 1,180,890. Amino - halogen - phenylethanolamines. K. THOMAE G.m.b.H. 9 May, 1968 [9 May, 1967], No. 22126/68. Heading C2C. Novel compounds of the formula where Hal represents chlorine, bromine or iodine; R 1  and R 2 , which may be the same or different, represent H or a C 1-3  alkyl group; R 3  and R 4 , which may be the same or different, represent H, a straight or branched chain alkyl group, alkenyl, hydroxyalkyl, alkoxyalkyl, dialkylaminoalkyl, cycloalkyl, phenyl or benzyl or together with the adjacent N form a pyrrolidine, piperidine, piperazine, morpholine, hexamethyleneimine or camphidine ring, which rings may be substituted by one or more C 1-3  alkyl groups, and their physiologically acceptable acid addition salts, are obtained (a) by halogenation of the corresponding halogen-free compound; (b) by deacylation, e.g. by heating with dilute mineral acid, of the corresponding acylatedamino compound; (c) by reacting a compound of the formula (H 2 N)(Hal)C 6 H 3 .CHOH.C(R 1 )(R 2 )Hal<SP>1</SP> (where Hal<SP>1</SP> is Cl, Br or I) with an amine HN(R 3 )(R 4 ); (d) by reduction of a corresponding compound of the formula (H 2 N)(Hal)C 6 H 3 .CO.C(R 1 )(R 2 ).N(R 3 )(R 4 ); (e) by partially dehalogenating a compound of Formula (I) having an additional nuclear halogen atom; (f) by reducing a compound of the formula: (H 2 N)(Hal)C 6 H 3 .CO.CO.N(R 3 )(R 4 ); (g) by reducing a compound of the formula (H 2 N)(Hal)C 6 H 3 .CHOH.CO.N(R 3 )(R 4 ); or (h) by reducing a compound of the formula (Hal)(NO 2 )C 6 H 3 .CHOH.C(R 1 )(R 2 ).N(R 3 )(R 4 ). The following new starting materials are prepared by general methods described: 1-(4- aminophenyl) - 2 - propylaminoethanol; 1 - (4 - aminophenyl) - 2 - ethylaminoethanol; 1 - (4 - aminophenyl) - 2 - diethylaminoethanol; 1 - (4 - acetamido - 3 - bromophenyl) - 2 - diethylaminoethanol; 1 - (3 - acetamido - 4 - bromo - phenyl) - 2 - (ethylbenzylamino) - ethanol; 1 - (2 - amino - 5 - bromophenyl) - 2 - bromoethanol; 4 - amino - 3 - bromo - α - dimethylamino - acetophenone; 4 - amino - 3 - bromo - α - morpholino - acetophenone; 2 - amino - 5 - chloro - α - diethylamino - acetophenone; 1 - (2 - amino - 3,5 - dibromophenyl) - 2 - diethylamino - ethanol; 2 - amino - 5 - bromo - phenylglyoxylic acid diethylamide; 2 - amino - 5 - bromo - phenylglycolic acid diethylamide; 1 - (4 - bromo - 3 - nitrophenyl) - 2 - diethylamino-ethanol. Pharmaceutical compositions having good analgesic activity comprise compounds of Formula (I) above in association with a pharmaceutical carrier or excipient in forms suitable for oral, rectal or parenteral administration.
Patent GB-837192-A (GB)
Title: Improvements relating to electrical waveguide systems
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01P1/08
Filed: 1955-08-02
Abstract: 837,192. Waveguide seals. BRITISH THOMSON-HOUSTON CO. Ltd. July 20,1956 [Aug. 2, 1955], No. 22180/55. Class 40 (8). To provide for tuning the resonant sealed window of a pressurized waveguide system is made rota. tionally asymmetric about the axis of propagation The window may be formed in a metal partition 3 one face of which has a circular recess 4 for reception of a fused silica or mica plate 5 sealed across the resonant aperture 6. To provide the desired asymmetry either the aperture 6 is made elliptical in form or the seal 5 is made non- uniform in thickness e.g. it may taper from one side to the other or to both sides from a diametral portion of maximum thickness. The partition 3 may be rotated with respect to the direction of polarization of the propagated waves. This causes a variation in the resonant frequency of the window. The partition is sealed to the flanges of waveguides 1, 2 by rubber rings 8. Choke slots 7 are provided. The guides may be of any cross-section.
Patent GB-359966-A (GB)
Title: Improvements relating to electric insulators
IPC: H01B17/02
Filed: 1930-07-23
Abstract: 359,966. Insulators. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ohio Brass Co. ; Mansfield, Ohio, U.S.A.) July 23, 1930, No. 22190. [Class 36.] An insulator comprises connected parts each having co-operating tapered or wedging bearing surfaces to transmit the mechanical load, antifriction bearing members being fitted between the surfaces. In the embodiment a pin 69 is provided with bearing faces 60, a cap 70 is formed with cement grooves 61 and a dielectric 67 is provided with bearing faces 62. The bearing faces in each series may differ in angularity from each other. Rollers 63 bear on the faces 60 and are covered on the outer side by metal sheets 64 held by cement 65. Rollers 66 bear on the faces 62 and are preferably covered by metal layers 68. In operation a load is applied at the end of the pin 69 and to the cap 70, the bearing faces allowing relative movement of the parts. The rollers 66 may be replaced by balls or by rings, continuous, in pieces or wound in a spiral, extending round the dielectric and circular in cross section.
Patent GB-1401663-A (GB)
Title: Method and apparatus for use in analysing a material
IPC: G01N33/36
Filed: 1972-05-12
Abstract: 1401663 Analyzer WIRA 7 Aug 1973 [12 May 1972] 22275/72 Heading G1B A cylindrical wall 1 having perforated top and bottom walls 2 and 3 defines a chamber for a sample 4 of a material to be analyzed. Means for reciprocating wall 1 in an up and down direction in a cylinder 5 comprises a crank 7, rotated by motor 20, link 9 and arms 10. In use, a weighed sample e.g. a mixture of textile fibres, is inserted in the chamber and cylindrical container 5 is filled to the level 23 with a solvent. The motor 20 causes the chamber to reciprocate up and down within chamber 5 so that the solvent is driven back and forth through the chamber and thus through the sample. An outlet 11 from the bottom of container 5 leads via a tube 12 and valve 13 to waste. An inlet 14 is connected via a tube 15 and valve 16 to a rinsing fluid supply reservoir 17 and an inlet 21 in the top wall 3 is connected by means of a flexible tube 19 to a hot air source 22. By these means the sample may be rinsed and dried and then reweighed to determine the amount of component dissolved in the solvent. The container 5 may be surrounded by a water bath 18. A further embodiment is shown in Fig. 3.
Patent GB-1299483-A (GB)
Title: Halobenzoylpropionic acid esters
IPC: C07C59/88
Filed: 1970-05-08
Abstract: 1299483 Halobenzoyl propionic acid derivatives BADISCHE ANILIN- & SODA-FABRIK AG 8 May 1970 [10 May 1969] 22278/70 Heading C2C The invention comprises halobenzoyl propionic acid esters of formula: in which X is a halogen and R is an aliphatic C 1-10  hydrocarbon radical optionally substituted by halogen, hydroxyl or alkoxy. They may be prepared by reacting a halobenzoyl proprionic acid with the appropriate alcohols in the presence of a mineral acid. p-Bromobenzoyl propionic. acid used as a starting material is prepared by reacting bromobenzene with saccinic acid in the presence of anhydrous aluminium chloride. The halobenzoyl propionic acid esters may be used as insect repellents in the form of solutions, emulsions, suspensions or dusts.
Patent GB-1068780-A (GB)
Title: Device for the controlled separation from a pile of thin,flat,flexible articles
IPC: B65H9/06
Filed: 1965-05-26
Abstract: 1,068,780. Feeding sheets. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 26, 1965 [June 10, 1964], No. 22356/65. Heading B6B. A stack 1 of sheets on edge is guided by a front plate 2, and urged towards a rotating roller 4 coated with silicone rubber which separates the front sheet from the stack and feeds it between a reversely-rotating roller 5 and a forwarding roller 6 which is preferably urged resiliently towards the roller 5, until the front end of the sheet engages a stop means 11, 12. The member 12 is a fixed block, and the member 11 can be pivoted about a pin 9, to allow forward movement of the sheet, by a solenoid 8 which is controlled by signals from the associated machine. An idler roller 13 on the member 11 presses the sheet against a rotating roller 14 when the member 11 is raised to accelerate the sheet and feed it between conveyer rollers 16, 17. The solenoid 8 cannot function unless a photo-electric device 15 indicates that a sheet is in the feed path. The roller 5, which prevents double-feed of sheets, has a peripheral speed which is less than that of the roller 4, and the rollers 14 and 16, 17 have peripheral speeds higher than that of the roller 4. The distance B, C is shorter than the length of a sheet. If the roller 6 is mounted on a fixed axis, the distance B, D is shorter, and the distance B, C is longer, than the length of a sheet. The rollers 16, 17 can be replaced by belts.
Patent GB-224987-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/20
Filed: 1923-09-05
Abstract: 224,987. Watkinson, E. Sept. 5, 1923. Switches, quick-action ; covers. - A quickaction tumbler switch has a member d carrying at one end the insulated movable bridging contact n which co-operates with fixed contacts u. The member d is carried by a cradle f pivoted at points e in the fixed frame b. Against the upper edge f of the member d is pressed a roller q by a spring p carried in the lower end of the operating dolly o pivoted at o<1>. This upper edge or track f is suitably curved so that when the operating lever o is moved across to operate the switch a compression of the spring p occurs until the dead-centre position shown in Fig. 2 is reached, after which the spring re-acts to produce a snap-action switching movement. Projections g limit the motion of the arm d in either direction. The switch cover s, Fig. 6, is secured by projections t engaging bayonet slots r in the insulating base a. Reference has been directed by the Comptroller to Specification 212,661.
Patent GB-228960-A (GB)
Title: Improvements in advertising and displaying apparatus
IPC: G09F13/24
Filed: 1923-09-06
Abstract: 228,960. Dobbins, E. J. Sept. 6, 1923. Moving liquids, utilizing.-A tube 1 containing a surging transparent liquid is mounted in a casing 2 having a viewing aperture 3 extending throughout its length, advertising matter being provided upon the exterior of the tube or on the interior of the casing. The liquid is moved or shaken by the motion of a vehicle or other object upon which the apparatus is mounted. The tube may be formed with compartments which communicate through constricted passages. Also, the tube 1 may contain immiscible liquids. According to the Provisional Specification, the tube may contain an opaque liquid, movement of which uncovers the matter to be displayed.