baber/WOPTO huggingface dataset:
Patent GB-727403-A (GB)
Title: Apparatus for reproducing with considerable mechanical power the movement of a beam of light
Inventor: GIBSON ROBERT
IPC: G05D3/14
Filed: 1951-09-14
Abstract: 727,403. Electric follow-up systems. WOOL INDUSTRIES RESEARCH ASSOCIATION. Sept. 24, 1952 [Sept. 14, 1951], No. 21597/51. Class 40 (1). [Also in Group XL (b)] The movement of a member is reproduced with increased mechanical power by a photoelectric cell which is mounted in a member which moves so as to follow the boundary of a beam of light reflected by the member. As shown, an image of a semi-circular mask 6 in front of a light source is projected by a mirror 5, the angular position of which is to be indicated, and lens 7 on to a housing 10 in which is mounted a photo-electric cell. A narrow slot 9 in the box allows light to reach the photo-cell. A light tunnel may be fitted in front of the slot to prevent entry of stray light. The housing carries a nut which is driven by a motor 17 driving a lead-screw 14 through known clutchoperated reversing mechanism 18. In operation the housing moves from right to left until the diameter of the semicircular image 8 enters the slot when the photo-cell operates through a known electronic circuit 19-to reverse the drive of lead-screw 14. Thus the housing 10 oscillates until the position of the image changes. The oscillations of the housing are not transmitted to pen 22 because of lost-motion between a block 20 on which the pin is mounted and guidebars 26 carried by the housing. In a modification the light beam may be of a width greater than the length of the slit, its intensity varying in the direction of deflection or the light beam may vary in width in this direction. Feed-back of the output signal to the mechanism moving the light beam is possible.
Patent GB-161884-A (GB)
Title: Improvements in windows for motor-cars and like vehicles
IPC: B60J1/00
Filed: 1920-07-19
Abstract: 161,884. Dawson, J. July 19, 1920. No Patent granted (Sealing fee not paid). Bodies.--For forming motor-car windows with rounded corners, wooden or pressed papier mÔchÚ rings, Fig. 2, are covered with thin sheet metal pressed or drop-stamped to fit on the bead, to which it is pinned. The ring is then sawn in four and the corners so formed are pinned in the window corners, Fig. 3, over the glass. A triangular metal plate has its bevelled edges pinned under the metal side coverings to cover the corner.
Patent GB-1246425-A (GB)
Title: Preparation of hop extract
IPC: C07C51/00
Filed: 1970-05-05
Abstract: 1,246,425. Humulones. CHAS PFIZER & CO. Inc. 5 May, 1970 [2 March, 1970], No. 21670/70. Headings C2C. [Also in Division C6] Humulones &c. are extracted from hops with hexane, the humulones in the extract are concomitantly isomerized and reduced by heating in the presence of sodium borohydride solution containing sodium hydroxide, the reaction solution is acidified with an aqueous solution of sulphuric acid containing ammonium sulphate and the reduced isohumulones are extracted with hexane, and the reduced isohumulones are recovered as the water-soluble potassium salts by mixing the hexane extract with fresh water, heating to a temperature between 50‹ and 60‹ C., adjusting the pH of the hot hexane-water mixture to between 7À5 and 9À0 with aqueous potassium hydroxide (to avoid extracting lupulones also) and separating the aqueous phase containing the potassium salts. The aqueous phase may then be concentrated to about 30-60% dissolved solids.
Patent GB-830488-A (GB)
Title: Improvements relating to articles of cabinet furniture
IPC: A47B81/04
Filed: 1957-07-09
Abstract: 830,488. Cabinets. BEAUTILITY FURNITURE Ltd., and PROUD, H. R. July 4, 1958 [July 9, 1957], No. 21723/57. Class 52(1) A cabinet has a hinged drop-down flap 11 and hinged side doors 12, 12, the flap being coupled to an internal sliding shelf unit S by stays 18 and the doors 12 being coupled, one at each side by arms 21, to the shelf S so that when flap 11 is dropped down the doors 12 are opened and shelf unit S moved forwardly. The construction is intended as a cocktail cabinet and the doors and shelves may have rails &c. to retain glasses, battles and the like. Specification 710,157 is referred to.
Patent GB-191690-A (GB)
Title: Improvements in balancing of reciprocating engines
IPC: F16F15/26
Filed: 1922-08-12
Abstract: 191,690. Rowell, H. S. Aug. 12, 1922. Radial-cylinder engines.-V-engines with cylinders at 60‹ and cranks at 180‹ are balanced by masses rotating in the same direction as the crank-shaft at double-speed. One or two weights D, Fig. 1, are driven by chain or spur gearing from the cam-shaft F. One or two weights may be mounted on spur wheels driven by and around the crank-shaft B. The spur wheels may be cut away to constitute the weights. The weights may be rotated around auxiliary shafts driven by a chain from the main shaft, or, as shown in Fig. 10, a sun wheel F secured to a main-shaft bearing engages planet wheels C with, or formed as, balance weights and carried by a frame G attached to a crank.
Patent GB-587602-A (GB)
Title: Improvements in tin openers
IPC: B67B7/40
Filed: 1944-11-09
Abstract: 587,602. Tin-openers. BELLOW, E. A. Nov. 9, 1944, No. 22024. [Class 66] A tin-opener of the kind which rolls up and tears off a strip of metal from the tin comprises a shank 5 having an open-ended slot 8 to receive the tongue piece on the tin ; and an extractor member 9 capable of sliding non-rotatably on the shank to push the tongue-piece out of the slot after use. The slot is formed by fixing a slotted tube 7 on the shank, and the extractor has a tongue 12 sliding in a wider extension 11 of the slot. The extractor may be manipulated by hand, or by the movement of a nut along a screw thread on the upper part of the shank.
Patent GB-167079-A (GB)
Title: An improved fire-guard
IPC: F24B1/192
Filed: 1920-07-23
Abstract: 167,079. Nutt, R. r. July 23, 1920. Fire-guards.-Wire-work or like guards adapted to be secured in front of a fire-grate are made with front and side portions, the front portion being provided with a hinged or sliding door for giving access to the fire, and with an inclined bottom portion C for conducting cinders to the ash-pan, the top being open. Rod or like supports H are provided near the bottom to receive flat-irons, plates, cooking-utensils or the like. The guard is secured by hooks engaging the usual uprights E, or studs in a corresponding position. When the door is hinged at the top, as shown in Fig. 3, the upper part of the front of the guard is preferably backwardly inclined. Fig. 4 shows a guard with a vertically sliding door running on guide bars g<3>, g<4>, the front being curved. The door may be retained in its raised position by a catch or by cranked portions of the guide bars.
Patent GB-468484-A (GB)
Title: A new or improved method and apparatus for ventilating and thermally conditioning the air of rooms of buildings or the like
IPC: F24F3/04
Filed: 1936-08-10
Abstract: 468,484. Conditioning air. CORNELL, E. S. Aug. 10, 1936, No. 22040. Convention date, Aug. 10, 1935. [Class 137] Rooms or spaces 10, 11 to be ventilated and heated or cooled, are provided with heat exchange devices 12a-15a, and fans 17, 19, 31, 35 driven by air-pressure motors, such as described in Specification 403,584, [Group XXVI]. Motor 16 is connected by pipes 20, 21 to a reservoir 23 supplied by a compressor 22, and the compressed air used is delivered into the room. Motor 18 is connected by pipes 25, 26 to a reservoir 27 connected to the suction side of the pump 22 so that the motor withdraws air from the room 10 for its operation, and discharges it at lower pressure to the reservoir 27. The room 11 is heated or cooled and ventilated in a similar manner. Air-cleaning and/or humidity controlling devices may be associated with the tanks 23, 27, and connections for the circulation of fresh air may be provided at 36, 38. The heatexchanger 41 for heat-treating the air supplied to the system is associated with a fan 40. Specification 457,387 also is referred to.
Patent GB-317214-A (GB)
Title: Improvements in or relating to power-driven platform trolleys, trucks and the like vehicles
IPC: F16H63/24
Filed: 1928-07-30
Abstract: 317,214. Death, H. N. July 30, 1928. Controlling different functions by same lever; interlocking and guarding against wrong movements; automatic power-control.-In a motor platform truck or the like having a spring- loaded control lever adapted to bring the gear lever to the neutral position and to lock it there and apply the brakes, the gear lever 13 or the control lever 16 is formed with a slot engaged by a pin or roller 21 on the other lever and the slot is enlarged at one end and formed with a cam surface 23 at one or both sides of the enlargement so that when the lever 16 is rotated by its spring the pin or roller engages the appropriate cam surface and returns the gear lever to the neutral position where it is locked by the narrow part of the slot. In the construction shown the control lever has four arms 16 - - 19, of which 16 is used as a pedal, 17 is connected to a tension spring 20, 18 carries the pin 21, and 19 is connected by a link 24 to brakes on the rear driving wheels 3. The gear lever 13 is pivoted at 14 and controls the reversing gear 8 which may be of the kind described in Specification 301,536, [Class 79 (iv), Motor vehicles, Frames &c. of], having a pair of friction clutches. When the control lever is moved to the position shown in broken lines, the brakes and the gear lever are released; further movement of the lever 16 causes the engine throttle to be opened by means of a Bowden wire or other control 25. A lost-motion device in the brake linkage permits this further movement to be made without moving the brakes unduly. The lever 16 may carry an electric contact 26 adapted to short-circuit or break the ignition circuit when the lever is released to stop the truck.
Patent GB-1103484-A (GB)
Title: Improvements in or relating to the manufacture of synthetic polyamide filaments
Inventor: EVANS VINCENT LEIGHTON
IPC: D02J1/22
Filed: 1964-05-28
Abstract: 1,103,484. Melt-spinning polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 May, 1965 [28 May, 1964], No. 22054/64. Heading B5B. An at least partially oriented polyamide yarn which in the freshly drawn state substantially free from moisture and in a relaxed condition is stable in the presence of moisture and heat is produced by melt-spinning a polyamide such as polyhexamethylene adipamide to form filaments, cooling and solidifying the filaments, orienting them in air under substantially moisture-free conditions and winding them up on to a package as a yarn, the usual steps of passing the filaments through a steam conditioning tube and applying an aqueous finish to the filaments being omitted. The resulting yarn has a boiling water shrinkage of less than 1%. The draw ratio used in the orientation step may be 1À9. The filaments after cooling may have a non-aqueous finish applied to them and may then be drawn between two sets of rolls in a known manner. The yarn may pass around a snubbing pin during its passage from one set of draw rolls to the other. The yarn may be drawn by means of a high velocity stream of air instead of by draw rolls.
Patent GB-1471935-A (GB)
Title: Digital operation of control circuits for remote control of electronic apparatus
IPC: H03J9/04
Filed: 1974-05-17
Abstract: 1471935 Automatic electric control INTERNATIONAL STANDARD ELECTRIC CORP 17 May 1974 [28 May 1973] 22093/74 Heading G3N A sequencing control arrangement, for controlling the steps of an electronic control element (not described) such as for remote control of radio or T.V. receivers, as embodied in Fig. 1 includes an electronic stepping switch S 1  which produces a positive output successively at each terminal A 1  to A 4  in response to each positive pulse at input E 1  ; positive pulses at input E 2  causes backward stepping output from A 4  to A 3  to A 2  to A 1 . The output A5 from a bi-stable electronic switch S 2  is positive when E 3  is positive and is zero when E 4  is positive. A5 is connected directly to AND gates G 1 , G 3 , G 5 , G 7  and via an inverter U 1  to G 2 , G 4 , G 6 , G 8 . Each output A 1 -A 4  is connected to a respective pair of gates. Thus, with positive pulses at E 1 , E 3  the gates outputs A G1 , A G3 , A G5 , A G7  are rendered positive one at a time in turn. Similarly for backward steps, with positive pulses at E 2  and E 4 , positive pulses will appear at A G8 , A G6 , A G4 , A G2  in turn. Thereby there is provided a stepped output signal having steps corresponding to even steps of the electronic control element in one step direction and odd steps thereof in the other step direction. The stepping switch S 1  may be a chain of flip-flops, a shift register or a ring counter. In an embodiment Fig. 2 which is basically similar to that described in Specification 1396417, the stepping switch S 1  is constituted by counting flip-flops FF 1  to FF 3  which sequentially switch resistors IR, 2R, 4R into the base current circuit of a transistor T 1  to form eight different conductance combinations. The bi-stable switch is constituted by FF 4  which depending upon the stepping direction, either switches in a resistor 8R or dis-  connects it. In a further embodiment Fig. 3 (not shown), the stepped output signal corresponds to all the steps of the electronic control element in the forward stepping direction and only alternate steps when stepping in the backwards direction.
Patent GB-895045-A (GB)
Title: Vibrating screen for screening loose materials
IPC: B07B1/46
Filed: 1958-07-10
Abstract: 895,045. Screen fabric. KUFFERATH, J. July 10, 1958 [July 25, 1957], No. 22209/58. Class 45. [Also in Group II] A vibratory screen is composed of wires having a part-circular cross-section as shown in Fig. 2, the flat part 14 being disposed at a distance of about one half the radius of the part 13 above the centre 15. In a modification the contour varies slightly from that shown, in that it may be bounded at the sides and below by a curved line other than an arc of a circle, whilst having approximately the same height and maximum width, with the maximum width in the same plane.
Patent GB-534221-A (GB)
Title: Dyestuff intermediates
IPC: C07C309/58
Filed: 1939-07-31
Abstract: 534,221. Trimellitic acid derivatives. WYLER, M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 31, 1939, No. 22218. [Class 2 (iii)] 5-Sulphobenzene-1:2:4-tricarboxylic acid is obtained by treating a mixture of the three isomeric xylenes (e.g. crude xylene) with an alkylphenylcarbamyl chloride (or an alkylaniline and phosgene) in the presence of aluminium chloride, hydrolyzing the product, sulphonating, and oxidizing the mixture of sulphodimethylbenzene carboxylic acids thus obtained. 5-Hydroxybenzene-1:2:4-tricarboxylic acid is obtained by fusing the product with alkali. Examples are given.
Patent GB-258277-A (GB)
Title: Improvements in and relating to protective means for electric furnaces
IPC: H05B1/02
Filed: 1926-09-10
Abstract: 258,277. British Thomson-Houston Co., Ltd., (Assignees of Otis, A. N.). Sept. 10, 1925, [Convention date]. Fusible cut-outs. -A protective device for electric furnaces comprises a wire threaded through apertures in a built-up support which is inserted through an opening the furnace wall, a fusible portion of the wire being exposed at the end of the support. The support comprises a series of porcelain cylinders 10 secured together by a U- shaped bolt 15 that passes through two parallel holes in each cylinder, the end portion 18 of the bolt lying in a recess 17 in the end cylinder 16. The fuse wire 32 extends through holes in the cylinders 10 leaving a loop exposed at the end, this loop being of a metal having the desired melting point and carrying a bead 33 that drops and opens the circuit upon fusing of the wire. Coupling sleeves 26, 27, Fig. 3, surrounded by an insulator 19 are enclosed in a removable cover 22, and connect the fuse wire to the conductors 34 in the circuit to be controlled. This may be the circuit of a coil that operates a switch to open the heating circuit when the fuse wire melts.
Patent GB-854476-A (GB)
Title: Improvements in method of making polyurethane rubber articles
IPC: C08G18/10
Filed: 1959-06-30
Abstract: A method of making a polyurethane rubber article comprises the steps of uniformly suspending in solid particulate form a crystalline primary diamine in a viscous suspending medium selected from polyethers, polyesters and castor oil, the polyethers and polyesters having molecular weights within the range from 500 to 5,000 and containing primary hydroxyl groups, and thereafter thoroughly dispersing such suspension in a polyurethane prepolymer having terminal isocyanate groups, which is an uncured, liquid reaction product of a polymer having terminal hydroxyl groups and having a molecular weight of from 500 to 5,000, selected from polyesters and polyethers with an excess of an organic polyisocyanate, to form a two-phase system in which the primary diamine exists as uniformly dispersed solid particles, the resulting fluid mixture being characterized by having ample pot life at temperatures below the melting point of the primary diamine, thereafter imparting a desired shape to the fluid mixture, and subsequently heating the mixture to a temperature above the melting point of the primary diamine, whereby the mixture cures to a solid, rubbery state in which the diamine and the viscous suspending medium are chemically combined with the prepolymer.  Diamines specified are naphthalene diamine, 2, 2-diaminodiphenyl methane, benzidine, 4. 41-diaminodiphenyl ether, 2, 4-diaminotoluene, 1, 4-diaminobenzene, diaminoanisole, dichlorobenzidine and 3, 31-dichloro-4, 41-diamino-diphenylmethane. The polyesters and polyethers may be straight chained or branched. In examples portions of a prepolymer obtained by reacting one mole of a propylene glycol/ethylene glycol/adipic acid polyester with two moles of 4, 41-diphenyl methane diisocyanate or 2, 4-toluene diisocyanate are mixed with pastes of dichlorobenzidine or 3, 31-dichloro-4, 41-diphenylmethane in polypropylene glycol, castor oil or polyester.  The mixtures are moulded under heat and pressure.  The compositions can also be applied by spreading, dipping or spraying. Fillers and pigments can be added.  Uses.  Ducts, air-springs, tires, gloves and dipped articles, shoes and parts of shoes, clothing, golf balls, belts, processing aprons, upholstery, liners for tubeless tires, films, coatings and moulded articles.
Patent GB-709650-A (GB)
Title: Liquid fuel injection nozzles for internal combustion engines
Inventor: SHELTON WILLIAM FREDERICK
IPC: F02M55/00
Filed: 1951-09-26
Abstract: 709,650. Fuel injectors. C. A. V., Ltd. Sept. 10, 1952 [Sept. 26, 1951], No. 22510/51. Class 7(3) A fuel injector comprises a main body part a, a separately formed flange member h, for attaching the injector to the engine, permanently secured by brazing or otherwise to the main body part, a laterally disposed branch piece j for connection of the fuel supply pipe, the branch piece being in screw-thread engagement with the flange h and having its inner end engaging in a recess in the main body part a, and a separately formed cap f secured to the end of the body remote from the discharge end. The flange h may be secured to the part a by copper-brazing and fuel leaking past the valve-stem b escapes through a vent pipe g. The part a and the branch piece j are produced from cylindrical work pieces by turning and boring operations.
Patent GB-1063641-A (GB)
Title: Improvements in frequency discriminators
Inventor: ALLEN DENNIS WILLIAM
IPC: H03K5/26
Filed: 1964-06-01
Abstract: 1,063,641. Frequency detectors. MINISTER OF AVIATION, LONDON, and THORN ELECTRONICS Ltd. May 27, 1965 [June 1, 1964], No. 22606/64. Heading H3A. [Also in Division G1] An input frequency 10 is squared in 11 and triggers a binary counter 12 which produces a square wave at half the input frequency (waveform B, Fig. 2, not shown). This triggers a monostable multivibrator 13 which produces pulses of constant length (waveform C), approximately equal to the minimum length of the pulses in waveform B, at the frequency of waveform B. The trailing edge of the pulses in waveform C trigger a second monostable 14 which produces short pulses (waveform D). Waveforms B-D and their inversions are selectively combined by gates 15 and 16 feeding an integrating amplifier 17 producing the final output. For example B.C + B.C gives an output linear with frequency (curve Z, Fig. 3, not shown). Other combinations give outputs which are linear over part of the range and constant over other parts (curves V-Y). Using a third monostable (20, Fig. 8, not shown) triggered by the trailing edge of the B pulses to produce waveform E (Fig. 9, not shown), a band-pass or a band-stop characteristic may be produced (Fig. 10, not shown). In modified arrangements for detecting variations in frequency from a nominal value which may vary, an output produced from one gate and an integrating amplifier is used to control the length of the C pulse, and the output from another gate and amplifier will be proportional to variations in the frequency, Figs. 4 and 6 (not shown). This may be applied to measuring " flutter " in tape recorders.
Patent GB-969741-A (GB)
Title: Apparatus and method for separating certain components from blood
IPC: G01N33/48
Filed: 1963-06-06
Abstract: 969,741. Blood test separating devices. J. H.  BREWER. June 6, 1963, No. 22620/63. Heading B1X.  A device for separating solid components  from small blood samples comprises a member  having in one surface thereof a recess comprising intercommunicating principal and auxiliary portions, the former of which contains a precipitating agent. Fig. 6 shows a sheet 10 in the form of a card or slide having a principal recess portion 12 communicating with the auxiliary recess portion to the right thereof. The sheet is packed in an aluminium foil envelope lined with polyethylene, polypropylene or polyvinyl chloride, together with a disposable lancet 22, similarly packed, a stirring rod 23 and a wire loop 24 (or a capillary pipette) for removing liquid from the recess. In use, two or three drops of blood are placed in the principal recess portion 12, stirred with the reagent to effect precipitation, and the sheet is then folded at 16 with end 17 downwardly pointing, and placed on a horizontal surface to drain liquid serum or plasma into the auxiliary portion for removal to be tested. The sheet may be made of polypropylene, polyethylene, polystyrene or polyvinyl plastic having an inert plasticizer, or of casein sized paperboard coated with polyethylene. The precipitating agent may be mixed with normal saline, coated on the bottom of the principal portion and allowed to dry. The agent may contain a hemagglutinin (e.g. phytohemagglutinin or one produced immunologically) and (for serum) a coagulant such as thrombin or (for plasma) an anticoagulant such as heparin, dicumarol, sod. citrate, potassium, ammonium, lithium or sodium onalate, or ethylene diaminotetraacetate. Alternatively to the use of a coagulant, the sample may be stirred. Details of dimensions and quantities are provided.