baber/WOPTO huggingface dataset:
Patent GB-1111083-A (GB)
Title: Improvements in or relating to shell and tube heat exchangers
Inventor: HARRIS PETER JOHN
IPC: F28F9/02
Filed: 1965-02-19
Abstract: 1,111,083. Tubular heat exchangers. BIRWELCO Ltd. 18 Feb., 1966 [19 Feb., 1965], No. 7159/65. Heading F4S. The tube supporting end plate 18 of a shell and tube heat exchanger comprises a part 19 of larger diameter than a second part 20, a concave shoulder 21 being formed at the junction of the two parts. The part 19 is inserted within a flange ring 11 of larger diameter than the heat exchanger shell 10 and welded to the end thereof, a peripheral locating ring 23 around the first part of the tube sheet engaging in a recess 14 in the flange ring 11. A collar 25 surrounds the second part 20 of the tube sheet with clearance and is secured to theflange ring 11 by bolts 37 passing through clearance holes 16 in the flange ring 11 and engaging in threaded holes 31 in the collar 25, a sealing ring 22 being clamped in place against the shoulder 21 of the tube sheet and the hollowed edge 24 of the ring 11. A closure plate 32 is secured to the collar 25 by means of bolts 38 passing through clearance holes 33 in the closure plate 32 and engaging in the threaded holes 31 in the collar 25, a second sealing ring thereby clamped in place against edges 36, 30 of the tube sheet 18 and collar 25 respectively, and in a groove 34 set in the closure plate 32. Radial holes 27 in the collar 25 extend from a clearance 26 between the collar 25 and the second part 20 of the tube sheet 18 to the periphery of the collar for leak detection.
Patent GB-1088132-A (GB)
Title: Position regulating apparatus
IPC: A01B63/114
Filed: 1965-02-19
Abstract: 1,088,132. Tractor power lift mechanisms. MASSEY-FERGUSON Inc. Feb. 19, 1965 [Feb. 24, 1964], No. 7190/65. Heading A1P. An automatic depth control mechanism for an agricultural implement comprises a piston 50 connected to the linkage of the implement to adjust its vertical position. The piston is actuated by fluid under the control of a valve 52, the valve being moved to the left to connect the line 66 to exhaust 56 and moved to the right to connect a reservoir line 54 to a line 60 to enable a pump 64 to supply fluid to the cylinder 48. The valve 52 is actuated by a lever 180 upon movement of a piston 164 which is loaded to the right by a spring 176 and to the left by fluid supplied by a pump 168 and leakage of this fluid through a valve 156. The valve 156 is positioned in response to variations in air pressure in bellows 144, 146, the bellows 144 being connected by conduit 148 to a cylinder 108 above a piston 110 and the bellows 146 being connected by a conduit 150 to the space below the piston in cylinder 122. The cylinder 108 is connected to a support fixed to the implement while its piston is connected by a rod to a slot 114 formed in a bracket 116 which is mounted on a link carried by a wheel which engages the surface of the ground. With the implement raised, the piston 110 is in the lower position and the piston of cylinder 122 is moved by a manual knob 128 to its upper position. Valves 138 at the ends of the two cylinders are depressed to fill the cylinder and bellows with atmospheric air. The valves 138 are then closed and the piston of cylinder 122 is moved downwards to provide a loading in bellows 146, the piston being retained in its set position by a ratchet 134. The valve 156 is opened by this loading pressure and the piston 164. moves under the spring action to actuate valve 52 to lower the implement. As the implement moves into the ground, the piston 110 is raised by the wheel and the pressure in bellows 144 is increased thus moving the valve 156 towards a closed position and hence piston 164 to the left until the valve 52 is recentred. Variations in depth of the implement then act through piston 110 and bellows 144 against the set pressure in bellows 146 to adjust the valve 52 to maintain the desired depth. To raise the implement the valve 52 is actuated manually by a control member 74.
Patent GB-393710-A (GB)
Title: Improvements in or relating to spraying apparatus
IPC: B05B7/24
Filed: 1932-03-10
Abstract: 393,710. Spray-producers. OWEN, W., Scatterdells Lane, Chipperfield, Hertfordshire. March 10, 1932, No. 7194. [Class 69 (iii).] A paint container D, Figs. 1 and 2, is detachably mounted on a paint gun by an arched member C<1> attachedthereto and clamped to the forward part of the gun by a screw C<8>. The gun comprises a member A having a central paint passage controlled by a triggeroperated needle valve F and parallel air passages J<4>, Fig. 3, leading from an air chamber J<2> to a recess J<5> in the forward part thereof in which an air nozzle L screws. The air valve J and needle valve are simultaneously opened against the action of a spring J<7> by a trigger B<3> connected to the valve by a flexible wire J<9>. Air is supplied through a passage A in the body of the pistol. A cross bore H in the member A prevents air leaking past the needle F reaching the paint passages. The paint vessel is provided with a lid having a conical boss c<2> connected to the dip tube c<6> and engaging a conical recess in the head A containing a radial paint passage C. The paint nozzle K<1> is formed in a forward extension of the conical member K formed in the member A.
Patent GB-638724-A (GB)
Title: Improvements in or relating to glow switches
IPC: H01H61/017
Filed: 1948-03-09
Abstract: 638,724. Thermal switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 9, 1948, No. 7204. Convention date, May 10, 1947. [Class 38 (v)] [Also in Group XL (a)] A glow-switch for starting discharge lamps comprising a pair of normally-spaced bimetallic electrodes 12, 13 supported at one end by leads 7, 8 sealed through a pinch-press 6 in an envelope filled with an ionizable medium, has a tube 9 sealed at a point intermediate its ends through the envelope, its inner end surrounding the free ends of the electrodes so as to maintain their spacing constantly uniform. A part 14 of the pinchpress has a crater 15 surrounding part of the electrodes to concentrate the discharge between them to obtain a quicker heating thereof and consequent operation of the switch. The crater may extend over the greater part of the length of the electrodes. A method of manufacturing the switch is also described (see Group XL (a)).
Patent GB-493423-A (GB)
Title: Improvements in weather-excluding strip for swing doors
IPC: E06B7/18
Filed: 1938-03-08
Abstract: 493,423. Draught - excluders for swing doors. PERCIVAL, S. (Chamberlain Metal Weather Strip Co.) March 8, 1938, No. 7238. [Class 20 (iii)] A swing door or one of a pair of swing doors is provided with a spring-pressed weather - excluder comprising a felt strip held in a metal channel 8 and housed in a recess 6 on the edge of the door. The strip is slidably mounted on screws 7 and pressed outwardly by springs 9. The screws are inserted through slits 11 formed in the felt.
Patent GB-571280-A (GB)
Title: Improvements in or relating to the production of boards and sheets from waste fibrous materials
IPC: C08L97/02
Filed: 1943-05-07
Abstract: 571,280. Fireproof sheets and boards. IRSA, G. I. de, and WOOD IMPREGNATION, Ltd. May 7. 1943, No. 7271. [Class 140] Boards and sheets are produced from fibrous or powdered organic waste material, such as sawdust, wood shavings, wood wool, cotton waste and waste from flax and hemp industries, by treating the material with a solution of a fireproofing salt, e.g., sodium fluoride, then with a silicifying compound under heat and pressure, drying it, mixing it with a binder, and forming it into board &c., under heat and pressure. The fireproofing solution may be limewater containing sodium fluoride and mercuric chloride, with, if desired, or dye or pigment, and the silicifying compound may be a silicic acid, e.g., fluosilicic acid, which may contain bitumen and cryolite to render the material waterproof. The quantity of binder will depend on the nature and state of the waste material. Resin, polymerised to render it fireproof, may be used as binder for electric insulating material; montan wax or montan pitch for flooring; and glue rendered fireproof by admixture with ammonium phosphate, phosphoric acid and boric acid may also be used. The shaping of the boards &c., may be effected by moulding in hydraulic presses at a temperature of about 110‹C.
Patent GB-1086529-A (GB)
Title: Preparation of alcohols
IPC: C07C29/54
Filed: 1965-02-19
Abstract: Alcohols are prepared by reacting an aluminium trialkyl, in which each alkyl group contains 2-24 carbon atoms, with a molecular oxygen-containing gas in a first stage at 15-30 DEG  F. for a time sufficient to convert at least 80 mol per cent of the alkyl groups to alkoxide groups, and then in a second stage at 90-130 DEG  F. for a time sufficient to substantially complete oxidation, and hydrolysing the oxidation product to form the alcohol.  It is preferred to operate in the presence of an inert solvent which is stripped from the oxidation product before hydrolysis.  In a continuous process part of the product from the first stage may be recycled in admixture with fresh aluminium trialkyl.  It is preferred to use a pre-dried oxygen-containing gas and limit the second oxidation step to a reaction time of 1-30 minutes. Examples describe the oxidation of mixed aluminium trialkyls.
Patent GB-524006-A (GB)
Title: Manufacture of compounds of the cyclopentanopolyhydrophenanthrene series
IPC: C07J75/00
Filed: 1939-01-17
Abstract: 524,006. Cyclopentanopolyhydrophenanthrene compounds. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). Jan. 17, 1939, No. 7389. Divided out of and addition to 502,474. [Class 2 (iii)] The process of the parent Specification which comprises the treatment of ketones of the general formula R-CO-CH 3  with lead tetraacetate is modified in that in place of the tetraacetate there is used other acylates of tetravalent lead. Compounds mentioned are lead tetra-butyrate, lead tetra-propionate, lead tetrapalmitate and lead tetra-benzoate. It is preferred to carry out the reaction in a medium consisting of the acid corresponding with the lead tetra-acylate used. Some of the compounds produced according to this invention show the effects of the cortical hormone. In examples (1) Progesterone is refluxed in benzene solution with lead tetra-benzoate. (2) Benzoyl pregnendone is treated as in example (1). (3) Progesterone is refluxed in butyric acid solution with lead tetra-butyrate.
Patent GB-106340-A (GB)
Title: Improvements in Mechanical Gear Shifting Devices.
Inventor: WEBER ANTON
IPC: F16H63/46
Filed: 1916-05-24
Abstract: 106,340. Weber, A. May Controlling variable - speed gearing. - In gear-shifting means for motor-vehicles, the gears are operated by doublearmed levers which are rotated by the longitudinal movement of a double-armed ram, the ram being rotated to select the particular gear required. The speed gear within the box 18, Fig. 1, is operated by levers 22, 23 carried by a shaft 20 and sleeve 21, respectively, to which are secured levers 24, 25, Figs. 2 and 6. The clutch pedal lever 45 operates the main clutch 16 through a link 46 and lever 46<1>, and carries an arm 44 engaging a slot 43 in a rod 42 connected to a shaft 28 which slides in a casing 19 and carries a ram 29 with arms 30, 31 nearly diametrically opposed. By means of a lever 32 on the steering pillar 34 and a linkage 35 connected to a sleeve 36, Fig. 9, which turns with the shaft 28 but allows axial movement thereof, the arms 30, 31 may be adjusted so as to be opposite to any one of the ends 24<1>, 24<11>, 25<1>, 25<11> of the levers 24, 25. To facilitate exact adjustment of the arms and to prevent strain, the shaft 28 has a recess 48 and a number of slots 49 adapted to engage a ball 50 carried in the casing 27, slots 53 in the arms being adapted to engage ball guides 52 in the casing 19. Movement of the pedal 45 first disengages the clutch 16 and then slides the ram 29 to operate the selected lever end and change the gear. In order that the gear previously in action may be returned to neutral before a new gear is thrown in, a sliding head 56 is secured on sleeves 55 sliding on fixed pins 54. A ring 57 engaging a groove in the ram 29 has arms 57<1>, 57" engaging the sleeves 55 so that, during the movement of the ram to the left, the head 56 engages the projecting end of the lever 24, 25 last operated and returns it to the neutral position. The arm 57 has a ball end 59 engaging an inclined slot 60, 61 in a block 62 in the casing 19 so that the arms are rotated and disengaged frcm the sleeves 53 during the movement of the head 56 to the left. Further movement of the ram 29 then operates the selected lever end, the other end of the lever being moved to the right and returning the head 56 to its starting position. The ram 29 is returned by a spring 47 when the clutch pedal is released. Figs. 12 and 14 show a modified means for operating the sliding-head 56. The head is secured to a rod 70 which has a groove 77 engaged by projections 74 on curved bars 71 carrying rollers 72 held in contact with fixed rods 54 by springs 73. The rods 54 are so shaped that, when the head 56 is moved to the left, the projections 74 are removed from the groove 77 so that the head may be returned by the levers 24, 25. The levers 24, 25 may act directly on the speed gear parts.
Patent GB-406488-A (GB)
Title: Improvements in and relating to maps
IPC: G09B29/10
Filed: 1933-03-11
Abstract: 406,488. Calculators, plane-trigonometry. SONABEND, H., 14, U1. Sosnowa, Warsaw. March 11, 1933, No. 7472. [Class 106 (i).] A map holder is provided with means for ascertaining the direction and rate of travel for land vehicles and sea or air craft, comprising a graduated compass disc 14, slidably supported on a rod 15, which is itself slidably supported in grooves 18, 18<1> in the casing. Rotatable arms 16, 17 carried by the disc are graduated to take into account the velocity and direction of the wind and the speed of the vehicle respectively, and a graduated ribbon 11, the ends of which are attached to bobbins 12, 121 adjustable in slots 13, 13<1>, is provided, to enable the pilot to ascertain his course without this being plotted directly on the map.
Patent GB-1131784-A (GB)
Title: Reactive dyestuffs containing 2-sulphonyl-5-pyrimidine-carbonyl radicals
Inventor: SCHUENDEHUETTE KARL-HEINZ
IPC: C09B62/20
Filed: 1967-02-16
Abstract: 1,131,784. Dyestuff intermediates. FARBENFABRIKEN BAYER A.G. 16 Feb., 1967 [16 Feb., 1966], No. 7519/67. Heading C2C. [Also in Division C4] In Examples 18, 30 and 236, 1-amino-8- hydroxy - naphthalene - 3,6 - disulphonic acid; 1,3 - diaminobenzene - 6 - sulphonic acid and 2 - amino - 8 - hydroxy - naphthalene - 3,6 - disulphonic acid are monoacylated using 2-methylsulphonyl - 6 - chloropyrimidine - 5 - carboxylic acid chloride. In Example 69 2-methylamino- 5 - hydroxy naphthalene - 7 - sulphonic acid is acylated with 2-ethylsulphonyl-6-chloropyrimidine-5-carboxylic acid chloride.
Patent GB-115843-A (GB)
Title: Improvements in Steam Generator and Motor Plants.
Inventor: BLOMQUIST JOHAN VIKTOR
IPC: F01K11/04
Filed: 1918-05-06
Abstract: 115,843. Blomquist, J. V. April 27, 1917, [Convention date]. Composite boilers; rotary boilers. - Water from a boiler 1 is fed by a pump 3 to rotary steam-generating elements 4, of the kind described in Specification 24481/14, mounted in the boiler furnace and supplying steam to a high-pressure engine or turbine 6. The exhaust from the high-pressure engine may be used with the boiler steam as the working fluid of the low-pressure engine or turbine 9.
Patent GB-821810-A (GB)
Title: Low toxicity tobacco
IPC: A24B15/32
Filed: 1958-03-10
Abstract: Tobacco in crude or cased leaf form, or cased and cut, is treated with methyl or ethyl iodide, bromide or chloride to reduce or eliminate its nicotine content.  The treating agent acts in gas or vapour form after being introduced, e.g. pre-cooled, into a closed vessel containing the tobacco and which is then maintained at from room temperature to 100 DEG  C. for from two to forty-eight hours. The agents can be used singly, in combination or diluted with inert gas, and in a ratio of up to 1.3 mol. of agent per mol. of nicotine. Quantitative process examples are given.  Tobacco already in loose or packaged cigars or cigarettes may be treated. The treating agent is presumed to convert the nicotine into an alkyl nicotinium halide and also to react with the nitrogen atom in the N-methylpyrrolidine ring of the nicotine molecule.ALSO:Tobacco in crude or cased leaf form, or cased and cut, is treated with methyl or ethyl iodide, bromide or chloride to reduce or eliminate its nicotine content.  The treating agent acts in gas or vapour form after being introduced, e.g. pre-cooled, into a closed vessel containing the tobacco and which is then maintained at from room temperature to 100 DEG  C. for from two to forty-eight hours.  The agents can be used singly, in combination or diluted with inert gas, and in a ratio of up to 1.3 mol. of agent per mol. of nicotine.  Quantitative process examples are given. Tobacco already in loose or packaged cigars or cigarettes may be treated.
Patent GB-553939-A (GB)
Title: Improvements relating to guns and gun-turrets for aircraft
IPC: F41A27/18
Filed: 1940-04-30
Abstract: 553,939. Aircraft gun mountings. BRISTOL AEROPLANE CO., Ltd., and WOTTON, J. April 30, 1940, No. 7780. [Classes 92 (i) and 92 (ii)] Relates to the fire control of aircraft guns which are mounted for elevation about a trunnion axis 26 and for training about the turret axis and also about an axis eccentric thereto. According to the invention, means are provided for preventing fire in the direction of structural parts of the aircraft comprising an image 160 of such parts and a member 115 contacting with the image to prevent firing, the relative movements of image and contact being controlled by movements of the gun about any or all of three axes. The invention is shown applied to the known type of mounting in which a pair of guns 57 are mounted for secondary training on a rotary pillar 22 supported by a pillar 13 fast with a bracket 14 mounted for primary training in a bearing 15 coaxial with the turret ring 19. Primary training is effected by hydraulic jack 39 and secondary training by a similar jack 44 and arm 47. Gun elevation about trunnion axis 26 co-ordinated with movement of the seat 10 is effected by hydraulic jack 37 which swings beams 11, 33 and through link 32 slides a collar 30 on the pillar 22 to raise and lower a tube 23 linked to the guns. The gun firing circuits are shown in Fig. 7 and comprise a main firing switch 141 and auxiliary switches 108 controlled by the image gear for closing circuits through solenoid coils 140 of magnets which operate the hydraulic firing valves 137. These are of known type adapted when operated to cause a building up of pressure to actuate the firing plungers 132. In the construction shown the image 160 is a fixed cylindrical screen concentric with the turret and the contact members 115 are mounted on a carriage 106 that moves over an arcuate rail 105 when operated by a cable 125. This cable passes over a pulley rotated from the tube 22 by gearing 116 the velocity ratio of which is designed to compensate for the effect of training about the eccentric axis. The rail 105 is carried by the raisable sleeve 30 to move the contacts 115 vertically as the gun is elevated. A modified compensation gear is described for use with an image screen which is concentric with and mounted upon the rotary pillar 22. Specification 461,824 is referred to.
Patent GB-164167-A (GB)
Title: Improvements in connection with bookbinding machinery
IPC: B42C11/04
Filed: 1920-03-16
Abstract: 164,167. Murray, J. March 16, 1920. Coating-machines. - Bookbinding-machines are fitted with a device which ensures that the back projecting edges shall receive an adequate amount of adhesive. The gumming-roller B is formed with a longitudinal groove B', and is supplied with gum by rollers C, D, the former of which has a projection C<1> adapted to enter the groove B<1>. The book A is reciprocated vertically and a bar B<1> carrying the roller B is oscillated about a shaft B<3> in unison, so that the shoulders A<2> receive an extra supply of gum from the trough B<1>. The bar B<2> is operated by means of links B<4>, B<5>, a toothed sector B<7>, and a reciprocating rack B'. The rollers B, C, D are actuated by helical gearing driven by wheels on the shaft B<3>.
Patent GB-180785-A (GB)
Title: Improvements relating to power navvies and the like
IPC: E21C47/10
Filed: 1921-03-12
Abstract: 180,785. Blythe, T. S. March 12, 1921. Scoop-arm machines.-In a power navvy, cutters c with an upright edge d and a curved edge e project upwardly from the mouthpiece a of the bucket. The cutters may have an aperture j and are riveted to angle-irons g and to the bucket. Cutters k may be provided projecting downwardly from the bucket and placed between the cutters c; the cutters k may be formed like the cutters c.
Patent GB-646593-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B3/08
Filed: 1948-03-16
Abstract: 646,593. Gramophones. BOER, J. J. DE. March 16, 1948, No. 7915. Convention date, March 24, 1947. [Class 40 (ii)] The gramophone pick-up 2 is engaged in its extreme position by the stop 3 which can be brought to either of two different positions, according to the size of the record 1, and which may support the arm in the rest position.
Patent GB-1134714-A (GB)
Title: Comparator
IPC: H03K17/80
Filed: 1966-02-23
Abstract: 1,134,714. Non - contact - making relays. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 23 Feb., 1966 [23 Feb., 1965], No. 7946/66. Heading H3B. The sign of the difference between two voltages U 1 , U 2  is indicated by an output at one of two terminals f, f of a bi-stable element F, the voltage difference being applied to an input winding W 1  of a magnetic core K which induces a voltage in a winding W 2  when a change in the sign of the difference takes place, the direction of the induced voltage determining the setting of the bi-stable element and consequently the direction of a standing current through a negative feedback winding W 3 . A core of rectangular hysteresis loop material is used and an output pulse controlling the bi-stable element is induced when the core flux switches from one saturation state to the other. Normally, two opposing magnetizations exist in the core due to the voltage difference acting in winding W 1  and the standing feedback current in winding W 3 , the latter current being of such magnitude as to bring the core magnetization almost to the knee of the hysteresis loop when the difference voltage is zero. If the sign of the difference current is reversed, the resulting flux change and the feedback current act cumulatively and the core flux is switched to the opposite saturation state. The induced output pulse in winding W 2  switches the bi-stable element F after optional amplification at L. The direction of the standing feedback current from a pulse generator T is consequently reversed and the core remains saturated in the new saturation state. Each further time the difference voltage changes in sign the core is switched, and the bi-stable element and direction of feedback current are reversed. A winding W 4  may be provided which carries a positive feedback current from pulse generator MKT when voltage changes of insufficient magnitude to cause circuit switching take place, the added winding increasing the sensitivity of the circuit. The voltage difference may be applied at intervals to winding W 1  by operation of switch S.
Patent GB-1328069-A (GB)
Title: Printing apparatus
IPC: B41F17/36
Filed: 1972-02-21
Abstract: 1328069 Printing apparatus PARKE DAVIS & CO 21 Feb 1972 [22 Feb 1971] 7955/72 Heading B6C In a rotary printing machine a gravure cylinder 11 coacts with a offset cylinder 18 and the cylinder 11 is wiped by a roller 12 adjustably mounted in the fountain 10 in which both the gravure cylinder 11 and the roller 12 rotate.