baber/WOPTO huggingface dataset:
Patent GB-798636-A (GB)
Title: Recovery of organic isocyanates
Filed: 1956-07-03
Abstract: Organic isocyanates are recovered from the crude reaction mixtures in which they are formed during their manufacture, or from concentrated tarry residues after preliminary distillation of a substantial portion of the organic isocyanates therefrom, by introducing the organic isocyanate solution or concentrate containing the non-volatile tarry residue into a naphthenic hydrocarbon oil which does not distil at 300 DEG  C. under 10 mm. absolute pressure and which is held at a temperature of from 200 DEG  to 315 DEG  C. and at from 1 to 80 mm. mercury pressure, whereby the organic isocyanate is vaporized and the insoluble residue is converted to a readily filterable granular solid in the oil, the naphthenic hydrocarbon oil furthermore being one that does not decompose or distil at the temperatures and under the pressures employed.  The organic isocyanatetar solution or concentrate employed preferably contains from 10 to 95 per cent by weight of the organic isocyanate.  The naphthenic hydrocarbon oil is preferably used in a ratio of at least 1 of oil to 1 of tarry residue containing the isocyanate.  The organic isocyanate recovery may be operated in a continuous manner whereby the insoluble granular residue produced is continually separated from the oil and the latter is returned to the system.  The recovery of the following organic isocyanates is exemplified: phenylisocyanate, naphthylisocyanate, hexylisocyanate, octadecylisocyanate, 2 : 4- and 2 : 6-toluene diisocyanate, 4-chloro1 : 3-phenylene diisocyanate, 4-methoxy-1 : 3-phenylene diisocyanate, hexamethylene diisocyanate, 4 : 41 - diisocyanatodiphenylmethane, 4 : 41 - diisocyanato - 3 : 31 - dimethyldiphenylmethane and toluene-2 : 4 : 6-triisocyanate.
Patent GB-1304644-A (GB)
IPC: F16L55/10
Filed: 1971-06-30
Abstract: 1304644 Pipe couplings HANSEN MFG CO 30 June 1971 [10 Aug 1970] 30586/71 Heading F2G A lever is pivoted at 96 to a known coupling part 22 so that, on turning it anticlockwise, links 100 draw known coupling part 20 into the part 22, simultaneously opening valves (60 and 66, Figs. 2 and 3, not shown). In order to release the coupling, the lever is turned clockwise, so that collar 146 moves sleeve 130 to the right to effect release of known locking means, the parts being blown asunder by the fluid pressure in lines 14 and 16.
Patent GB-152474-A (GB)
Title: Improvements in or applicable to automatic organ players or player organs
Filed: 1919-08-22
Abstract: 152,474. Latham, W. Aug. 22, 1919. Wind instruments; actions, pneumatic and eleyctro-pneumatic. One tune sheet controls an organ with two or more manuals, each brought into operation by a draw-stop and also into momentary use for the actuation of any one note or chord by marginal tunesheet perforations. Fig. 1 shows a three-manual organ in which the main pneumatics A, one for each note, operate the pallet trackers G. Corresponding to the manuals a, b, c, are subsidiary actions d, e, f, which project catch levers H, pivoted to the pallet trackers, so as to raise the pallets B. Each row of subsidiary actions is connected to a controlling-box K, K<1>, or K<2>; the choker valve L is pneumatically controlled by the draw-stop M<3>, to open connexion with the corresponding subsidiary actions. Thus when a note perforation admits air into tube A<1>, the primary valve E, on rising admits air into tube J, (J', J<2>) which raises the purse C<1>. The collapse of the pneumatic projects the catch lever H, to engage with and raise the pallet B, the tracker G having been raised by the main pneumatic. The " accentor " valve L' of each controlling-box is used to bring a manual momentarily into play. Marginal tune-sheet perforations operate the pneumatic N and by means of the valve P the valve L' opens a connexion to the subsidiary actions ,(the valve being closed). These perforations, together with that for the note to be played on the otherwise sillent manual, are placed slightly before or behind the other notes in the chord. Their length is limited so as not to interfere with succeeding notes, but the note played thereby is sustained until the pallet tracker G is lowered, owing to the catch H<1> engaging with the end B<1> of the pallet. The catch levers may be electrically operated, the levers Q, Fig. 2, acting as armatures of the electro-magnets R which are joined in parallel. Circuit closers S, Tare respectively controlled by the primary valves E and the valves in the subsidiary pneumatic devices V.
Patent GB-1300182-A (GB)
Title: Improvements relating to ship's propeller arrangements
IPC: B63H5/14
Filed: 1971-04-19
Abstract: 1300182 Ship's propeller nozzle KARLSTADS-MEKANISKA WERKSTAD AB 19 April 1971 [10 April 1970] 20639/71 Heading B7V In a ship's propeller assembly comprising a propeller surrounded by an annular nozzle 1, the blades 3 of the propeller are detachably mounted on the hub 11 by flanges 5. The inner surface of the nozzle has a recess 21 extending in the axial direction of the nozzle which enables a propeller blade to be lifted and changed without dismounting the propeller or parts of the nozzle.
Patent GB-386979-A (GB)
Title: Improvements in and relating to automatic switches for electrically driven machines
IPC: H01H71/68
Filed: 1931-07-20
Abstract: 386,979. Control of motors ; electromagnetic switches. WHITEHEAD, C.W., 476, West Side Drive, Mission Ridge, and NEW ERA ELECTRO DEVICES, Inc., Highland Park, both in Chattanooga, Tennessee, U.S.A. July 20, 1931, No. 20727. [Classes 38 (iii) and 38 (v).] The circuit of a motor driving a loom is controlled by an electromagnetic switch 24, Fig. 4, energized by closing a start button, maintained over normally closed contacts of a relay 42, and de-energized by the closure of a stop button or automatic stop switches which energize the relay 42 from a step-down transformer 38. According to the invention, the main switch comprises rocking contacts 13, Fig. 2, carried upon a holder 18 which is pivoted eccentrically at 19 so as to be normally disengaged from the fixed contacts 14.
Patent GB-969388-A (GB)
Title: Improvements relating to control circuits of d.c. electric drive motors
Inventor: WEST RICHARD ALFRED
IPC: B66C13/24
Filed: 1962-05-30
Abstract: 969,388. Control of D.C. motors. CONTACTOR SWITCHGEAR Ltd. March 25, 1963 [May 30, 1962], No. 20770/62. Heading H2J. A hoist motor of the series type is set for dynamic braking by connecting field winding S F , together with brake coil SB and resistor Rf, in parallel with armature A and resistor Ra. A resistor R s  may be connected in series with both the field and armature circuits. A blocking rectifier B prevents feed-back of regenerated current to the D.C. supply mains.
Patent GB-641054-A (GB)
Title: Improvements in or relating to sliders for sliding clasp fasteners
IPC: A44B19/30
Filed: 1948-08-06
Abstract: 641,054. Sliding-clasp fasteners. LIGHTNING FASTENERS, Ltd. Aug. 6, 1948. No. 20800. Convention date, Aug. 8, 1947. [Class 44] The locking slider of a sliding-clasp fastener shown in longitudinal sections, Figs. 2, 5 and 6, comprises a ratchet type locking member 42 normally held by a spring 52 in an inclined position (Fig. 2) with the end 56 projecting into the channel of the slides so that as the slider starts uncontrolled movement towards the open position, the end 56 is engaged by an element and the locking member turned thereby into the vertical position where it abuts a face 32 of the slider, the end 56 being further projected to lock the slider and prevent such movement. Movement of the slider in the opposite direction turns the locking member to withdraw the end 56 from the path of the elements, so that the locking means is inoperative. As shown in Fig. 5, the pull tag 29 engages the locking member when pulled towards the opening position causing it to pivot about its end 56 in contact with an element, the pivot part 40 sliding against the spring 52. In this position the locking member is ineffective and the slider may be moved towards the open end, the end 56 slipping over the elements as shown. To prevent damage to the fastener, the shape of the locking member and the strength of the spring may be adjusted to cause the locking member to release the slider when the opening force becomes sufficiently great. As shown in Fig. 6 the pressure of the element against the end 56 causes the locking member to rotate about its corner 65, the upper end sliding against the-spring 52 and withdrawing the end 56 from the path of the elements. In another form the emergency release is positively prevented by forming the face 32 and the cooperating face on the locking member at an angle substantially parallel with the oblique face of the element engaging end 56 of the locking member. In a slight modification Fig. 9, the locking element 91 is retained in an inclined normal position by being urged by the spring 52 into contact with an inclined face 90 on a loop 30 secured to the slider. The head 92 is formed with a cone 95 to locate the end of the spring.
Patent GB-593696-A (GB)
Title: Improvements in or relating to mechanical loading shovels and the like
IPC: E02F3/42
Filed: 1944-10-27
Abstract: 593,696. Load-handling machines. BOYDELL & CO., Ltd., E., and COLDWELL, J. D: Oct. 27, 1944, No. 20936. [Class 78(iii)] ] [Also in Group XXI] In mechanical loading shovels and like apparatus, such as grabbers, in which the shovel or other implement is raised by a winch, means are provided for applying supplementary braking power to the winch through hydraulic dash-pot mechanism during lowering. The dash-pot a, Fig. 2, is mounted between the jib b and the actuating arm c of supplementary brake mechanism. The ends of the cylinder d, Fig. 1, are connected by unions f, g and a pipe e. This pipe is connected also to the middle portion of the cylinder by unions h, i. Adjustable control valves, such as f<1>, are provided in the unions f, h, i in order that the action of the dash-pot may be adjusted in three stages. A return pipe j connects the ends of the cylinder and is controlled by a non- return valve k, but this pipe, &c. may be replaced by a self-closing valve in the piston.
Patent GB-351757-A (GB)
Title: Improvements in and relating to apparatus for turning and screw-threading hollow bodies
IPC: B23G1/22
Filed: 1930-07-10
Abstract: 351,757. Lathes. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, and FRANK, R., Eichenstrasse, Hilden, Rhineland, both in Germany. July 10, 1930, No. 20959. [Class 83 (iii).] A machine for turning and threading double taper sockets, has a revolving work carrier mounted on a transverse slide, controlled by a roller on another slide bearing against a guide'surface on the work slide. The tool slide 2, driven by an electric motor 8, has a revolving head 3 carrying a projecting mandrel 4, shown with a screw-cutting tool shaped to correspond to the double taper being cut. A rack 11, fixed to the tool slide, moves a secondary slide 12 upon which is mounted another transverse slide provided with a roller 14; as the tool moves to cut the thread or taper the chuck slide 5, kept in contact with the roller by a weight, is given a transverse movement corresponding to the shape of the guide surface 15. By modifying the work carrier the machine may be used to cut external double tapers.
Patent GB-336565-A (GB)
Title: Improvements in and relating to tables, counters and draining boards
IPC: A47L19/02
Filed: 1929-07-09
Abstract: 336,565. Marchant, W. July 9, 1929. Counters and like stands.-The tops of counters in hotels, restaurants, dairies, and the like are made with grooves or serrations. The invention is described with reference to a table, Fig. 1, showing a cross-section of a, round tabletop with concentric grooves 1 leading to radial grooves 2, the bottoms of which lead to a central receiver 3 and drain tap 4 for discharging the spillings. An ash tray 5 or like article is fitted as shown. A counter top is similarly made with parallel grooves running down to a collecting- channel at one end or side. Specification 14983/09 is referred to. Reference has been directed by the Comptroller to Specification 160,656.
Patent GB-1012827-A (GB)
Title: Method of purifying non-vicinal toluene diamines
IPC: C07C265/12
Filed: 1964-05-21
Abstract: A method for separating non-vicinal from vicinal toluene diamines comprises contacting a solution of the diamines with a 10-100% saturated solution of a compound of a metal of atomic number 22-30, 40-48 or 72-80, the respective solvents being substantially immiscible and separating the non-vicinal diamine solution from the metal compound-vicinal diamine solution or precipitate.  The non-vicinal diamine may be converted to diisocyanate by reaction with phosgene; the vicinal diamine may be recovered from the complex.
Patent GB-460233-A (GB)
Title: Improvements relating to soldering
IPC: B23K3/06
Filed: 1935-07-24
Abstract: 460,233. Endless-belt conveyers. CURTIS, A. B., and HOBBS, F. W. July 24, 1935, No. 21042. [Class 78 (i)] [Also in Groups XXII and XVII] In a machine for hermetically sealing the ends of collapsable tubes or containers by soldering the tubes 10 may be conveyed through the apparatus by an endless conveyer 9<a>, having walls 9<b> to receive the tubes. The edges first engage balls 12 in a guide 11 and then pass through the fluxing, soldering and cleaning devices, 13a, 3, and 15, 16.
Patent GB-1223342-A (GB)
Title: Improvements in or relating to the determination of deformability and residual stress of soil and rock formations
IPC: E02D1/02
Filed: 1968-05-03
Abstract: 1,223,342. Testing rock or soil. LABORATORIO NACIONAL DE ENGENHARIA CIVIL. May 3, 1968 [May 6, 1967], No.21087/68. Headings G1N and G1S. To minimize disturbance of in situ soil or rock at a to be exposed face of the soil or rock when the deformability and residual stressing of the soil or rock is to be determined by observing or applying tests to the face a narrow slot or contiguous narrow slots are formed in the soil or rock to expose the required face. The or each slot is cut by a large diameter, diamond tipped disc 9 supported in the bifurcated lower end of a tubular support 11 slidable along an upright column 2 of a frame 1 bolted to rock adjacent the slot being cut. The support 11 may be reciprocated or oscillated laterally of the column 2. To permit of slots of depths greater than the radius of the disc being cut in rock a bore greater than the diameter of the support 11 may be drilled in the rock to allow for passage of the support into the rock when deep slots are to be cut. Segmental fillers may be inserted in any so formed bore to allow of flat surfaces being presented to flat, pressure-applying pads when inserted into the slot or slots to stress the soil or rock to be tested. Such a pad 14 may be formed by securing two dished plates together around their contacting edges and will be provided with a nipple 16 to allow of pressurized air being entered into the pad and means 17 for allowing the passage of electric cables from strain gauges 19 secured between the plates within the pad out of the pad.
Patent GB-1342460-A (GB)
Title: Process for preparing and recovering lactams
Inventor: DE ROOIJ A H
IPC: C07D201/04
Filed: 1972-05-05
Abstract: 1342460 Oleum STAMICARBON NV 5 May 1972 [7 May 1971 3 Nov 1971] 21135/72 Heading C1A [Also in Division C2] Oleum is synthesized from an SO 2 -containing gas obtained by thermally decomposing an aqueous solution comprising ammonium sulphate and sulphuric acid which solution is itself obtained as by-product in the preparation of a lactum. The SO 2 -containing gas (e.g. comprising SO 2 , H 2 O, O 2 , CO 2  and N 2 ) may be cooled directly or indirectly to reduce the H 2 O content such that the SO 2 /H 2 O molar ratio is greater than unity. Oleum containing >20% by weight of free SO 3  is specified.
Patent GB-750243-A (GB)
Title: Improvements in or relating to the purification of lower aliphatic alcohols and ketones
Inventor: MACKINDER RICHARD
IPC: C07C45/79
Filed: 1953-07-30
Abstract: The odour of aliphatic alcohols and ketones containing not more than 6 carbon atoms in the molecule and of mixtures of such compounds with water is improved by contacting them with majolica or "Celite" (Registered Trade Mark) in the form of small pieces or aggregates. It is advantageous to follow or precede this treatment with a further treatment involving contacting the liquid with steel wool or iron filings, for example, by percolation through a bed thereof, and/or aeration.  The process is applicable, for example, to impure acetone, methyl ethyl ketone, sec. butyl alcohol, methyl isobutyl ketone and methyl isobutyl carbinol.  In the examples the odour of impure isopropyl alcohol is improved by passing it through (a) a Celite bed followed by aeration; (b) a bed of steel wool, and then a Celite bed followed by aeration; and (c) a bed of steel wool and a majolica bed. Lowering of the temperature of percolation to between 6 DEG  and 20 DEG  C. increases the effect.
Patent GB-681325-A (GB)
Title: Self-propelled pneumatic-tyred road-roller
IPC: E01C19/27
Filed: 1950-08-28
Abstract: 681,325. Road rollers. ETABLISSEMENTS RICHIER. Aug. 28, 1950 [Aug. 29, 1949], No. 21231/50. Class 6(i) A self-propelled pneumatictyred road-roller has a steerable front wheel-set with an odd number of pneumatic - tyred wheels and a rear driving wheelset with an even number of such wheels which are mounted in pairs, Fig. 10, a stirrup may be E<SP>2</SP> pivoted to the main frame. The drive from the motor M passes through change-speed gearing B and differential gears F<SP>1</SP>, the final drive being through bevel gears I<SP>1</SP>, mounted in oiltight casings carried in trunnions t<SP>1</SP>, t<SP>2</SP> on the stirrup ends. Where there are several wheel pairs (Fig. 10) a stirrup may be sub-divided into several parts E', E<SP>2</SP>, E<SP>3</SP> pivoted together at a and b and separately pivoted to the frame T at P<SP>1</SP>, P<SP>2</SP> . The front wheel-set, Fig. 6, comprises a stirrup pivoted at H to a fork swivelly mounted in a bearing P on the main frame T. The wheels are mounted 'on axles pivoted, together at m, n, and to the stirrup at l, p. The distances between the pivots and wheel centres are chosen to produce uniform loading, and the tracks of the front wheels are staggered in relation to those at the rear.
Patent GB-698153-A (GB)
Title: Process for the manufacture of red lead of very high dispersion
IPC: C01G21/10
Filed: 1951-09-10
Abstract: Red lead is manufactured by calcining, in the presence of oxygen, the double carbonate of lead and sodium comprising 5 atoms of lead and 2 atoms of sodium bound in the molecule which is described and claimed in Specification 691,028 and which is considered to have the formula Pb5(CO3)4(ONa)2.  A temperature between 400 and 450 DEG C may be employed.  The calcined product is washed, dried and crushed.  An orange minuim containing 33 to 34 per cent of PbO2 is obtained.  The particle size of the minuim is substantially smaller than 1 micron, closely approximating to 0.5 micron.
Patent GB-265085-A (GB)
Title: An improved suspension for combined driving and steering wheels in motor vehicles
IPC: B60K17/30
Filed: 1926-09-01
Abstract: 265,085. Fornaca, G. Sept. 1, 1926. Springs, arrangement of.-A suspension for driven steering-wheels comprises a spring-controlled quadrilateral linkage consisting of a collar bearing for pivotally supporting the wheel swivel and a casing and rigid rod each pivoted to the bearing and to the vehicle frame, the driving- shaft and suspension springs being enclosed in the casing. The casing 2<1> supported by the wheel swivel carries steering pivots 3, 3<1> mounted on a collar bearing 4 having a downward extension pivoted at 11 to a rigid rod 12 which is pivoted to the frame 15 at 13. A casing 14, preferably elliptical in cross section, encloses the wheel driving shaft 1 and is carried at its ends on pivots 5, 5<1> and 8, 8<1> on the collar 4 and frame 15 respectively. Suspension springs 10, 10<1> are secured to seatings 7, 7' which are situated one on each side of the shaft 1 and also carry the pivots 8, 8<1>. The casing takes the thrust parallel to the longitudinal axis of the vehicle.
Patent GB-597611-A (GB)
Title: Heat exchanger for fluids of which one at least is of variable temperature or rate of flow or both
IPC: F28D7/16
Filed: 1945-08-23
Abstract: 597,611. Heat-exchange apparatus. HOWLETT, E. J., GLEDHILL, H., GLEDHILL, N. R., and GLEDHILL, M., [trading as THOMAS'S]. Aug. 23, 1945, No. 21628. [Classes 64 (i) and 64 (iii)] [Also in Group XXIX] In a heat-exchanger for fluids one at least of which is subject to variation of temperature or rate of flow or both, as in laundries, in which the incoming process water is preheated, separate paths are provided for the hotter and cooler wastes, the hotter waste from the top levels, after passing over heat exchange surfaces in contra-flow to the incoming water, and the colder waste from the bottom pass into separate receiving sections each provided with a discharge outlet, one of which is controlled by a device sensitive to temperature in such a manner that the proportion of discharge of the cooler waste increases as its temperature becomes lower. In the drawings, a tank or pit comprises an inlet section 1, heat exchange sections 2 and outlet sections 3 and 4. A channel 5, communicating with sections 2, leads colder waste straight to the outlet section 3 while hot waste flows from side to side through the sections 2 past alternate ends of the partition walls, over the final partition at level 9, into the section 4 where there is a free discharge 10 at the bottom. Incoming water enters the heat exchanger comprising tubes 14 between leaders 13 at pipe 11 and passes to outlet 12 in contra-flow to the hot waste. The overflow of cold waste into the discharging section 4 through a flexible pipe 18 is controlled by a weir 15 mounted on a counter weighted lever system 16 linked to a temperature-sensitive device comprising corrugated tubing 17 containing a liquid which is immersed in the colder waste. Alternatively a bulb communicating by a capillary tube with a Bourdon tube operating a mercury switch to start or stop an electric motor which operates a valve giving access to the compartment 4 may be employed.
Patent GB-379486-A (GB)
Title: Improvements in or relating to pictures, picture books or the like
IPC: A63H3/52
Filed: 1931-07-29
Abstract: 379,486. Pictures; toys ; picture books. TUCK, G. and TUCK & SONS, Ltd., R., Raphael House, Moorfields. London. July 21, 1931, No. 21661. [Classes 11, 16 and 132 (iii).] Relates to pictures of the kind having parts arranged in different planes to give a relief effect. Two or more pictures 1, 2, 6 are connected together by struts 3, 7, and are adapted to be folded about superposed lines 5, so as to lie flat one within another, there being at least one strut on each side of the fold lines. The rearmost picture 1 forms a background, and those in front of it are of smaller area, and have cut-out outlines. The struts on opposite sides of the fold lines are inclined to one another, and each strut is in the form of a parallelogram. The pictures may form pages of a book.
Patent GB-263706-A (GB)
Title: Improved manufacture of welted footwear
IPC: A43B9/06
Filed: 1926-09-02
Abstract: 263,706. Wiedemann, E. Sept. 2, 1926. Boot-sole sewing-machines; welting.- A welt strip 1, Fig. 2, is folded by means of a sewing- machine attachment 12 and laid into a groove 5<1>, Fig. 3, formed by an upper 3 pegged on against a channelled insole 4. The doubled welt is perforated by an awl, not shown, and sewn by threads 2 so as to lie snugly in position and allow itself to be folded flat smoothly and without undulations. The doubled parts of the welt are beaten upon one another, enclosing the stitching 2, and are united to an undersole 6, Fig. 7, and an intermediate sole 8 by stitching 10. The sewing-machine attachment, Fig. 6, has a welt guide. 12 and an angular guiding groove 13 rounded off at 13<1>. The guide 12 is fitted to an ordinary machine for sewing on the welt. The flat welt is folded and the crease of the welt is laid immediately in the stiching groove 5<1>. A needle 14, Fig. 4, opposite a movable punch awl, not shown, completes the stitching.