baber/WOPTO huggingface dataset:
Patent GB-630904-A (GB)
Title: Improvements in or relating to the production of aldol and/or crotonaldehyde
IPC: C07C45/66
Filed: 1947-02-18
Abstract: <PICT:0630904/IV (b)/1> Acetaldol is produced by conducting aldolization during ebullition of the reaction mixture of aldol and aldehyde and dissipating the heat liberated by withdrawing and condensing the vapours evolved. The process may be continued to yield crotonaldehyde without isolating the aldol.  The aldolization reactor consists of the upper part a of a column 4 and comprises several uncapped bubble plates 14.  The rest of the column acts as an ordinary still and consists of bubble cap plates 15.  Acetaldehyde and water are introduced from pipe 5, and caustic soda solution through pipe 6. The aldehyde vapours escaping by pipe 7 are condensed at 3 and returned by pipe 8.  The time of stay in the part a is about 5 mins.  The mixture of aldehyde and aldol is neutralized to a pH of 4-5 by acetic acid solution introduced by pipe 9, and a solution of aldol is withdrawn at line 11.  Pressure is atmospheric or slightly higher, the pipe 12 being connected to a nitrogen reservoir in the latter case.  In a modification, Fig. 2 (not shown), aldolization is effected in a vessel separate from the column.  Crotonaldehyde is obtained by reaction at a pressure raised by some 1-5 kilos, preferably at about 2 kilos/sq. cm. and/or by increasing the number and/or capacity of the plates in the still when hydrated crotonaldehyde is recovered from pipe 11 or taken off as a water azeotrope several plates above the base.  The use of a diluent is unnecessary.
Patent GB-1423605-A (GB)
Title: Lever mechanisms for use in conjunction with clutch assemblies
IPC: G05G7/04
Filed: 1973-01-30
Abstract: 1423605 Clutch control; lirikwork AUTOMOBILES M BERLIET 30 Jan 1973 [4 Feb 1972] 4688/73 Headings F2L and F2K A clutch pedal assistor spring 9 is connected between a fixed pin 10 and a pin 7 carried by a lever 8 which pivots about a fixed axis 11 and is connected by a link 5 of adjustable length to a suspended clutch pedal lever 1. In the clutch engaged position, as shown, the spring 9 opposes clutch disengaging movement of the lever 1 whilst on depression of the lever 1 the spring 9 passes over a dead centre line through the lever pivot 11 and thereafter assists clutch release. As shown the lever 1 actuates a clutch master cylinder 4. In Figs. 3 and 4 (not shown) the lever 8 has a second arm connected to a clutch actuating cable (13).
Patent GB-470641-A (GB)
Title: A postless adjustable gate
IPC: E06B11/04
Filed: 1936-02-17
Abstract: 470,641. Gates. HISLOP, J. H. Feb. 17, 1936, No. 4719. [Class 45] A gate, adapted to swing on a vertical axis, is mainly supported by a lateral extension 11 to the pivot which bears on the upper surface of the block 14, means for adjusting the height of the free end of the gate above the ground also being provided. The extension may be circular and mounted eccentrically. The uppermost rail is pivoted to the stile 1 at 7, but the other rails pass loosely through the stile and all are pivotally attached to a sag bar 10. The free end of the gate may thus be raised or lowered and held in the adjusted position by a rack 16 engaging a pin 17. In a modification, Fig. 4, the sag bar is depressed by a screw 20 to raise the free end of the gate. Specification 22486 /02, [Class 45], is referred to.
Patent GB-543114-A (GB)
Title: Improvements in or relating to protective devices for electrical apparatus
IPC: H02H5/00
Filed: 1941-04-09
Abstract: 543,114. Explosions, preventing. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 9, 1941, No. 4723. Convention date, April 26, 1940. [Class 47 (ii)] A protective device for electrical apparatus provided with a dielectric subject to decomposition by arcing to form gases such as hydrogen, and an inert gas for protection purposes, is provided with means for effecting chemical combination of the gaseous products of decomposition with the inert gas and absorptive means for the products of chemical combination. A transformer provided with a tap changing arm 218 is immersed in oil 14, the space above the oil being filled with nitrogen replenished from a bottle 60 having a pressure reducing delivery valve. A pipe 34 leads from the nitrogen space to a. chamber filled with silica gel or pumice impregnated with copper sulphate. High voltage from a transformer 42 generates a corona along a wire 40 beyond the porous absorbent mass, causing the hydrogen liberated by ,movement of the arm 28 to combine with the nitrogen to form ammonia, which is absorbed by the porous mass. The pressure generated by the hydrogen formed may actuate a switch through a bellows 56, or the wire 40 may be continuously energized. The reaction chamber 38 may be of a borosilicate glass and the wire seals 41 of an alloy known under the Registered Trade Mark "Kovar."
Patent GB-348547-A (GB)
Title: Improvements in or relating to acoustic horns
IPC: G10K9/20
Filed: 1930-02-12
Abstract: 348,547. Acoustic horns. WESTERN ELECTRIC CO., Ltd., Bush House, Aldwych, London.-(Bell Telephone Laboratories, Inc. ; 463, West Street, New York, U.S.A.) Feb. 12, 1930, No. 4764. [Class 13.] An acoustic horn which occupies a minimum of space in a direction perpendicular to the plane of its opening or flared end 1 has a plurality of tapered sound passages merging into a common flare 2, and each passage has a bend 5 of 90‹ or slightly more near the opening, a straight portion 9 extending from this bend in a plane substantially parallel to the plane of the opening, another bend 13 through about 180‹ about centres of curvature remote from the flare, followed by a substantially straight portion extending towards the flare. Divided throat portions may be connected at each of the input ends 17 so that any desired number of receivers may be used. The horn may be made in sections of steel with angle-iron flanges connecting them and a flange 16 at the opening may be provided for fixing the horn to any means of support such as a theatre screen or to a separate drop to be moved with the screen. Suspension chains may be connected to eyebolts 21 .. 24. Sheets of damping material such as flannel may be stuck to the surface of the horn if and where required. In a modification, the return portions 11 of the bends 13 are made approximately parallel to the portions 9 and penetrate the side of the flared opening to emerge centrally behind the flare after joining together inside the mouth.
Patent GB-707628-A (GB)
Title: Improvements relating to the connection of cycle handlebars and steering forks
Inventor: WINSPER THOMAS
IPC: B62K21/22
Filed: 1952-02-23
Abstract: 707,628. Handle-bar stems, fixing and securing in steering stems. PHILLIPS & CO., Ltd., J. A. Feb. 13, 1953 [Feb. 23, 1952], No. 4815/52. Class 136(3) A cycle handlebar stem 15 is adjustably connected within a steering fork tube 11 by means of a conical member 17 adjustab1y mounted on a bolt 19 and adapted to be drawn within a slotted lower end 16 of the stem 15 of the handlebar to expand the stem into positive frictional engagement with the surrounding tube 11, and a splined interface between the slotted end 16 of the stem and the tube 11. The spline 14 may be provided in the interior of the steering tube 11 and/or the exterior of the stem 15.
Patent GB-455268-A (GB)
Title: Improvements relating to magnetic material
IPC: B60B37/04
Filed: 1935-02-14
Abstract: 455,268. Altering physical structure. ALLEGEMEINE ELEKTRICITATS GES., 2, Friedrich Karl-Ufer, Berlin. Feb. 14, 1935, No. 4839. Convention date, Feb. 14, 1934. Addition to 363,697. Drawings to Specification. [Class 83 (iv)] In a process for making a magnetic alloy having an initial permeability of Á = 25 and over and an instability of less than 5 per cent involving a preliminary stretching followed by annealing and then by a final stretching according to the parent Specification, the preliminary and final stretchings are so correlated that the hysterisis is low as well as the instability and the preliminary stretching is such as to lead to a reduction in crosssectional area of at least 70 per cent. The preliminary stretching may be 98 per cent and the final stretching 60 per cent. The alloy may be sintered carbonyl nickel and iron containing 40 per cent nickel and 60 per cent iron made into ribbon 0À06 mm. thick, or an alloy rich in iron containing no nickel, or any of the known ternary or quaternary nickel-iron alloys. The stretching may be effected by drawing, rolling or other cold deformation which produces a reduction in cross-sectional area.
Patent GB-564816-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1943-03-29
Abstract: 564,816. Optical objectives. KAPELLA, Ltd., and WARMISHAM, A. March 29,1943, No. 5042. Addition to 522,651. Drawings to Specification. [Class 97 (i)] The subject-matter is identical with that of Specification 564,815 except that the AbbÚ V numbers of the rear elements of the third and fourth components are between 50 and 60. Complete data for one example in which the elements are made of #-magnesium oxide crystal are set out.
Patent GB-155725-A (GB)
Title: Improvements in hot plates and the like for heating cooking utensils and other purposes
IPC: F24C15/10
Filed: 1920-02-19
Abstract: 155,725. Chase, F. C. B. Feb. 19, 1920. Heating by electricity.-An adapter or hotplate for electric stoves comprises an open tray a having an internal inturned or flanged top edge c and containing a layer of sand, metal filings, or other material on which the utensil rests. The heating-element f is arranged beneath the raised bottom. In a modification, the heating-element is omitted, the bottom of the tray having a flat machined surface to rest on an existing hot-plate. The sides of the adapter extend upwards to form a jacket round the vessel being heated, and more than one utensil opening may be provided in a single adapter.
Patent GB-140886-A (GB)
Title: Improved means of actuating the cutting apparatus of mowing and reaping machines
IPC: A01D34/30
Filed: 1919-03-03
Abstract: 140,886. Oates, A. March 3. 1919 Reaping and mowing machines.-The knife-bar of a horse-drawn, motor, or manual reaping or mowing machine is reciprocated by a rocking-device actuated by studs P on a wheel of the machine. The machine comprises a main frame B supported on wheels D on the axle of which is pivoted a secondary frame E carrying the cutting- mechanism. The frame E, which also carries the adjustable driver's seat F, can be moved about its pivot to lift or lower the cutting apparatus by the driver pressing with his feet on the adjustable lid I of a tool-box, which serves as a foot-rest, or by pulling on a bar J fixed to the frame B. The frame E may be so arranged that the cutter-bar rises automatically to non-operative position when the driver leaves his seat. A catch may be provided to maintain the cutters in the raised position. The height of the cut may be varied by adjusting the position of a castor wheel on the secondary frame, or by altering the inclination of the pole of the main frame. The rim of one of the wheels D is provided on its sides with alternating studs P which are adapted to engage pallets Q mounted on an oscillator R pivoted on a shaft S. The pallets are free to move idly when the machine is backed. The front of the oscillator carries a pin U which enters a hole in the knifebar or a connecting-rod pivoted thereto, and so reciprocates it. When the cutters are raised, the oscillator is pushed forward along its shaft S by a rod V, causing the pallets to be moved beyond the working range of the studs P. The studs and the pallets may be detachable for renewal. The studs may be fitted on the wheel, which is on the opposite side of the machine from the cutter frame.
Patent GB-479244-A (GB)
Title: Improvements in or relating to respiratory masks for protection against harmful materials
IPC: F16K15/14
Filed: 1937-02-22
Abstract: 479,244. Respiratory masks. POELMAN, A. J. J., GERMAIN, M. A., and ETABLISSEMENTS R. SCHNEIDER. Feb. 22, 1937, No. 5313. [Class 81 (ii)] [Also in Group XXIX] A respiratory mask A is provided with an exhaling valve comprising two annular rubber washers 14 mounted on a hollow apertured member 10 and contacting at their outer edges only, the member 10 being secured in the nozzle of the mask. Preferably, the member 10 has a pair of conical flanges 11, having apertures 13 between them, and the washers 14 are stretched over the member 10 and are held against the flanges 11 by a conical-faced internal flange 18 in the absorbent-canister screw-socket 16 and bv a flexible collar 19, e.g. of nickel silver, held by a screw ring 20 against the outer flange of the nozzle. Air is inhaled through the canister and through member 10, either of which may house the inhaling valve, and is exhaled through apertures 13, the valve 14 and apertures 21. The washers 14 may have circular, polygonal, serrated, scalloped, or other edges, and in order to prevent adhesion, one may have a contour different from that of the other.
Patent GB-172556-A (GB)
Title: Improvements in or relating to water-heaters for kitchen-ranges
IPC: F24C13/00
Filed: 1921-02-16
Abstract: 172,556. Petterson, P. O. Feb. 16, 1921. Kitchen ranges; grates; boilers, arrangement of.-A kitchen range includes a boiler extending on two sides of and under the fire-box 3, Fig. 1, with parts forming the fire-bridge 1 and hob 7. These parts are joined by tubes 10 which may be of elongated section as shown in Fig. 4. A damper 9 controls the passage of gases over the. fire-bridge 1.'
Patent GB-1422132-A (GB)
Title: Liquid discharge member for liquid-vapour contacting tray
IPC: B01D3/24
Filed: 1972-02-07
Abstract: 1422132 Liquid discharge members SHELL INTERNATIONALE RESEARCH MAATSOHAPPIJ BV 5 Feb 1973 [7 Feb 1972] 5620/72 Heading B1R A liquid discharge member, for liquid-vapour contacting trays, having vertical side walls 1 defining a space of oblong or substantially oblong horizontal cross-section, has an elongated baffle 2 disposed wholly or mainly within the space with its lateral edges wholly or mainly abutting against the longer vertical side-walls, the baffle extending substantially the whole length of the member and being corrugated lengthwise to form open-top compartments A alternating with closed top compartments B, the compartments B being open at the top and each of the compartments A having one or more discharge openings (4, 6, 9, 10, 11 and 12) at or adjacent the bottom and being in horizontal cross section larger at the top than at the bottom.
Patent GB-570263-A (GB)
Title: Co-polymers and method of preparing the same
IPC: C08F236/04
Filed: 1943-04-08
Abstract: A diester of monochloromaleic acid containing at least one cycloalkyl radical is copolymerized in emulsion with a diene. Esters specified are the dicyclohexyl-, di-2-, 3- or 4-methyl cyclohexyl, di-, 2-, 4-dimethyl cyclohexyl, di - 4 - propyl or -isopropyl cyclohexyl, dicyclopentyl, dimenthyl, dicarbomenthyl, dicyclohexylcarbinyl, di - b  - cyclohexylethyl, dibornyl, diisobornyl, di-2-chloro-cyclohexyl, difenchyl, diisofenchyl and di-ac-tetrahydro-a -or b -naphthyl. Dienes specified are butadiene-1,3,2-chlorobutadiene-1,3,2-cyanobutadiene-1,3, isoprene, 2 - methylpentadiene - 1,3 and 2,3 - dimethylbutadiene-1,3.  The emulsions, which may comprise a buffer solution containing citric acid, sodium hydroxide and phosphoric acid, sodium lauryl sulphate, acetaldehyde, sodium cyanide and sodium perborate is heated at 38 DEG C. for 40 hours. The product is a white powder which on hot milling yields a rubber substitute.  The dicycloalkyl esters are prepared by esterifying monochloromaleic acid or anhydride in the presence of benzene and an acid catalyst.  Water is continuously removed as an azeotropic distillate which separates into two layers.  The solvent is returned to the reaction mixture and the crude product is neutralized, dried and distilled under reduced pressure.
Patent GB-574356-A (GB)
Title: Improvements in or relating to electric insulating compositions
IPC: H01B3/30
Filed: 1943-04-09
Abstract: An electric insulating material is prepared by polymerizing tung or oiticica oil with an anhydrous metal halide catalyst dissolved in an anhydrous solvent in the presence of castor oil dissolved in the solution in greater proportion than the halide catalyst, the castor oil acting as a deterrent to modify the action of the catalyst to provide for a controlled rate and time of initiation of the polymerization.  The mixture of oil and catalytic solution is primarily a thin fluid which commences to gel in about 20 to 40 minutes and finally sets to a solid elastic mass, no heat being required in its formation.  The catalysts exemplified comprise ferric chloride, ferric bromide and stannic chloride.  The preferred solvents comprise tricresyl phosphate, ortho, meta, or para, or mixtures thereof, and ether which must be used with ice-cooling; methyl isobutyl ketone and methyl n-amyl ketone are also specified. In the insulation of, e.g. the windings of an electromagnet, the freshly prepared admixture of oil and catalytic solution is poured while fluid around the windings and then left to set solid.  The admixture may also contain up to 25 per cent by weight of the oil of a hardening filler such as ester gum, stearine, or petroleum pitch. Specification 153,942, [Class 22], is referred to.
Patent GB-634997-A (GB)
Title: A machine for tightening the nuts of wheel spokes
IPC: B60B31/02
Filed: 1947-02-28
Abstract: 634,997. Screwing-up machines. EMAIN, J. E. M. Feb. 28, 1947, No. 5764. Convention date, June 28, 1946.. [Class 83 (iii)] A machine for screwing-up the nuts of wheel spokes comprises a frame, a wheel-hub supporting member positionally adjustable with respect to said frame, wheel locating rollers secured on the frame and arranged to grip the wheel rim, an automatically declutching screwing-up device for the spoke nuts, means for moving said device towards each nut in turn and means for rotating the wheel in steps to position each nut successively in the screwing-up position. A frame 1 carries two rods 4, 5, slidably mounted in bearings 2, 3 and connected at one end by a cross-member 6, adjustable wheel-hub supporting spindles 8, 9 being carried at the opposite end. Two rotary discs 15 mounted on the frame locate a wheel rim 14 in position and the spindles S, 9 are so positioned relatively to the discs 15 that the wheel hub is held slightly offset from the centre of the wheel rim. The various operations of the machine are controlled by three cams 35, 52, 66 mounted on a shaft 36 which is rotated through gearing and a dog-clutch (not shown) by a belt-driven pulley. The cam 35 operates a push-rod 34 to actuate a lever 30 carrying a pawl 28 acting on a gear 27 having 72 teeth (representing twice the number of spokes in a cycle wheel) to cause stepped rotation of a control drum 25. The control drum 25 carries a 36-tooth member 37, a stepped cam-member 44 and a projection 88. The member 37 rocks a lever 39 by a pin 38 engaging the crests and roots of teeth 37 to control the alternate setting of a screwing-up device 23 toward either edge of the rim 14, the device 23 being slidable along but keyed on a shaft 24. The cam 66 actuates a lever 65 to advance the screwing-up device to the spoke nuts, a pulleydriven screw-driver 21 being centred on the nut by a sleeve 63. The screw-driver is bored to provide a clearance for possible projecting spoke-ends and is provided with a spring- pressed ball clutch 61 which allows slip at a predetermined screwing resistance. The rim 14 is rotated in steps by a pawl 56 engaging under each spoke nut in turn and actuated through levers 54, 55, by the cam 52. After one complete screwing-up operation the stepped member 44 allows a rider 45 to fall on a depressed portion 44<SP>11</SP>, causing a lever 48 pivoted on a shaft 47 to disengage an abutment comprising rollers 49 from the head of a pin 50<SP>1</SP> securing a collar 50 to the rod 5. A spring 51 then causes a retraction of the shaft 5 with the wheel-hub supporting spindles 8, 9 to centralize the wheel hub for a second screwing-up operation. Finally the projection 88 on the control drum 25 actuates a lever 87 to remove a lever 83 from the path of a stud 81 on the clutch lever 80 and thereby disengage the dogclutch and stop the machine.
Patent GB-271789-A (GB)
Title: An artificial lighting system combined with lamp reflectors or lamp shades for artificially lighting public streets or thoroughfares
IPC: F21S13/00
Filed: 1927-03-02
Abstract: 271,789. Dollard, J. March 2, 1927. Lighting, systems of. - The reflectors and shades of lamps for outdoor lighting made with four sides are so shaped and so arranged transversely and longitudinally in relation to the street or thoroughfare that the boundary lines 2 of the reflected beam from each light are inclined downwardly and intersect those of adjacent lamps at predetermined distances apart so as to form an arcade of artificial light. When the lamps are arranged in two rows, Fig. 2, one on each side of the road, the light from one lamp on one side of the road may extend transversely to the inner side of the footpath or to the garden or building on the opposite side of the road. Specifications 3637/80, 887/82, 18876/14, 193,515 and 208,045 are referred to.
Patent GB-861917-A (GB)
Title: Improvements in washing machines
IPC: D06F37/04
Filed: 1959-02-20
Abstract: 861,917. Washing-machines. ELECTROLUX A.B. Feb. 20, 1959 [Feb. 21, 1958], No. 5909/59. Class 138 (2). In a horizontal rotary drum-type washing- machine, at least one end wall 35 of the drum 27 is releasably fastened to a part-circumferential wall 29, and the drum has means for automatically coupling it to a driving member on movement of the drum into position in an outer housing (not shown). The housing has an upper hinged cover with an opening for insertion of a water supply line. A valve prevents emergence of foam through the opening. A channel-shaped clip member 50 on one end wall 35 slidingly engages with an arm 51 rigidly secured to an axle 52, the drum being retained in position by a spring-pressed bolt 61 engaging in a sleeve 60 on the arm 51. The end walls 35 are secured by means of nuts 45 screwed on to rods 41. , An opening 31 in the wall 29 has a cover 32 hinged on pins 33 and held closed by spring-pressed bolts 36. A motor 16 (Fig. 5), is connected by a belt 74 and pulleys 73, 75, and a worm drive (not shown) to a shaft 77 on which a pulley 59 is freely rotatable. The pulley 59 can be coupled to the shaft 77 by a coupling device 79 and is connected by a V-belt 58 (Fig. 2), to a pulley 57 on the drum axle. A microswitch 82 operated by a drive 80, 81 periodically reverses the motor 16, thus producing oscillatory rotation of the drum 27. The coupling device 79 is controlled by a yoke 92 pivoted at 93 and provided with a roller (Fig. 6, not shown), engaging a slot in a cam. The cam also engages a roller carried by a drain pump 22 pivoted at 86. By means of a control knob the cam can be pivoted to uncouple the drive to the drum 27 and move the pump against spring action so that a friction drive wheel 98 for the pump engages the pulley 75.