baber/WOPTO huggingface dataset:
Patent GB-354948-A (GB)
Title: Improved manufacture of phenol or its homologues
IPC: C07C37/02
Filed: 1930-07-07
Abstract: A catalyst for use in the conversion of chlorbenzene and its homologues to phenol and its homologues by treatment in the vapour phase with steam at a raised temperature is prepared by dissolving hydrated alumina in caustic soda lye and adding a hydrochloric acid solution of cupric chloride until the mixture is neutral; the copper-aluminium hydroxide precipitate is filtered, washed and dried, and may be used admixed with more aluminium hydroxide.ALSO:Chlorbenzene or a homologue thereof is catalytically converted to phenol or its homologues by treatment in the vapour phase with steam at a raised temperature in presence of aluminium oxide or hydroxide free from iron, or of a material which contains such aluminium oxide or hydroxide or yields such aluminium oxide or hydroxide under the conditions of the hydrolysis.  While the absence of iron from the catalyst is essential the presence of copper is advantageous since the reaction will then proceed at a lower temperature.  A suitable catalyst is prepared by dissolving hydrated alumina in caustic soda lye and adding a hydrochloric acid solution of cupric chloride; the copper-aluminium hydroxide precipitate is filtered, washed and dried, and may be mixed with pure aluminium hydroxide.  In examples (1) chlorbenzene and steam are conducted at 300 DEG  over a catalyst prepared as above: (2) p-chlortoluene and steam is conducted over the same catalyst at 280 DEG : (3) chlorbenzene and steam are passed at 480 DEG  over pure aluminium oxide; the reaction is carried out at 250 DEG  when the catalyst contains 2 per cent of copper: (4) the vapours from a mixture of chlorbenzene and caustic soda lye are passed at 450 DEG  over pure aluminium oxide and the condensate returned to the boiling chamber where the phenol is fixed.
Patent GB-384943-A (GB)
Title: Improvements in straight bar knitting machines
IPC: D04B15/00
Filed: 1932-07-21
Abstract: 384,943. Knitting-machines. HILSCHER, A., HILSCHER, C., and HILSCHER, E., (trading as HILSCHER, G.), 8, Beckerstrasse, Chemnitz, Germany. July 21, 1932, No. 20649. Convention date, Sept. 15, 1931. [Class 74 (ii).] The shanks of the needles 9 at the ends 4, 5 of a removable central portion 3 of the needle bar of a straight bar machine are bent as shown. The side portions 1, 2 of the needle bed are extended beyond the needle-receiving sockets, and bent needles 9 are disposed above these blank end portions. The arrangement permits of fine spacing of the needles.
Patent GB-745945-A (GB)
Title: Improvements in crimping tools
IPC: H01R43/042
Filed: 1953-07-25
Abstract: 745,945. Crimping tools. FOX & OFFORD, Ltd., CRABTREE & CO., Ltd., J. A,. and FOX. J. P . May 20, 1954 [July 25, 1953], No. 20703/53. Class 61 A tool for crimping ferrules or sleeves to electrical conductors comprises handles 1, 2, pivoted at 3, the pivot being associated with a cam which, during the crimping operation first closes the dies and then moves an indenter 12 to effect the crimping. The fixed die 7 of the tool shown is mounted in the head 4 of the handle 1 and has pins 9 for guiding the movable die 8 which slides in the head and is controlled by a spring 10. The cam has two cam surfaces 11, 11a, for moving the indenter and die and these surfaces may be integral with the handle 2, or as shown the surface 11 may be on a separate plate. The surfaces are such that indentation is performed only after the dies are fully closed to embrace the ferrule. Specification 568,632 [Group XXXVI] is referred to.
Patent GB-294982-A (GB)
Title: Improvements relating to vacuum pumping apparatus
IPC: F04F9/00
Filed: 1928-07-17
Abstract: 294,982. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Shand, E. B.). Aug. 3, 1927, [Convention date]. Electrically-actuated valves.-A valve 9 used in a mercury vapour pump 13, Fig. 2, for governing the connection between the chamber 7 to be evacuated and the pump is controlled by a device responsive to temperature. The valve 9 is adapted to be closed by yieldable means, e.g. a spring 50 and opened by an electric motor 57 and non-reversible worm-gear 51, 54, and is controlled by a pivotally-mounted segmental member 47 having a cam surface 48 acting on the valve stem 12 to close the valve, the segmental worm-gear 51 mounted on the cam shaft 52 engaging a worm 54 on a shaft 53 when the latter is lifted by an electromagnet 58. The cooling system of the pump contains a device 20 responsive to fluid pressure to control the heating means 38 and the valve 9. The device 20 comprises a pressure chamber 21 having an inlet 25 and a restricted orifice 27 leading to the outlet 26, the stem of a switch 24 being connected to the diaphragm 22. If no water is flowing in the cooling circuit of the pump 13 or if the flow does not develop a suflicient pressure in the meter 20 the switch 24 is open, the valve 9 closed and the heating element 38 de-energized. When the proper amount of cooling water flows the switch 24 is closed and the heater 38 energized from the line 61. After the requisite interval the heat-responsive switch 39 closes the circuit 44 thus energizing the electromagnet 58 to engage the gears 51, 54 and permit the motor 57 to open the valve 9. When the valve is fully opened the dead point 60 opens the motor circuit, but the magnet 58 remains energized and holds the gears 51. 54 in mesh as long as the pump 13 is operative. On failure of the cooling water the switch 24 opens, the gear 54 drops and the valve 9 is closed by the spring 50. The shaft 53 may be spring pressed to its lower position, as in Figs. 4 and 5 (not shown).
Patent GB-295124-A (GB)
Title: Improvements relating to letting off motions for warps, in weaving looms
IPC: D03D49/06
Filed: 1927-08-06
Abstract: 295,124. Lightbown, W., and Hacking & Co., Ltd. Aug. 6, 1927. Letting-off warps.-In letting-off motions of the type described in Specification 198,718, having bottom spring-controlled levers 10 carrying a cranked shaft connected by hooks 8 to warpbeam tensioning-chains 6, a lever 21 fast to a shaft 15 extending beneath both levers 10 is raised by a rod or cable &c. operated by a jacquard hook or dobby jack or otherwise when it is desired to form fringes for towelling, shawls &c. Notched discs 17 on the shaft 15 engage catches 19 pivoted to the levers 10, which are thus raised when the lever 21 and shaft 15 are turned so that the warp tension is relieved. The warp passes over a back bearer 3 mounted on levers 4 carrying hooks 5 with threaded shanks and adjusting nuts attached to the chains 6.
Patent GB-288878-A (GB)
Title: Improvements in disinfecting and deodorising devices for use in connection with the flushing systems for water closets, lavatories and the like
IPC: E03D9/03
Filed: 1927-08-08
Abstract: 288,878. Holden, H. Aug. 8, 1927. Disinfecting and deodorizing. - A cylindrical vessel a containing a block or two or more balls of disinfectant and deodorizing material b is provided with perforated conical ends c, one or both of which are detachably secured as by a screw thread d or frictionally. The container is suspended inside the flushing cistern of a closet or the like by a. wire g bent over at h to engage the edge of the cistern and having a hook at its lower end engaged by a looped wire g<1> detachably secured to the members c.
Patent GB-335986-A (GB)
Title: Improvements in and relating to interlocking sheet piling
IPC: E02D5/08
Filed: 1929-07-06
Abstract: 335,986. Annison, R. H., and Bull, J. July 6, 1929. Piles.-The engaging edges on the flanges of interlocking trough - shaped sheet-piles are made of such a section that the joint made between them is in the line of the tension or thrust between the flanges. As shown in Fig. 2, each jaw section consists of a curved finger 5 and a male finger 6 forming an inlet 8 narrower than the rear portion of the recess 7 behind it. The part 6 has a wide outer end 9 narrower than the inlet 8, and a thinner shank 10 connected by a bevel 11.
Patent GB-953985-A (GB)
Title: Improvements in or relating to ploughs
Inventor: BROWN RICHARD ARTHUR
IPC: A01B3/42
Filed: 1962-05-30
Abstract: 953,985. Agricultural implements. RANSOMES SIMS & JEFFERIES Ltd. Feb. 28, 1963 [May 30, 1962], No. 20850/62. Addition to 928,361. Heading A1B. A ploughing attachment as claimed in the parent Specification is provided with a shaft 4 that is rotated by raising a lever 24 which co-operates with links 19 pivoted in a lever 17 attached to a shaft 11 on the ends of which are attached cranks 12 attached to the lower links B of a tractor. The lever 24 is provided with a hook-shaped cam profile 25 and a cam shaped stop 28 which co-operate with a roller 27 on the links 19 a spring 30 keeping the roller in contact with the lever, and a shield 28 being also provided. The plough is rotated as described in the parent Specification by the raising of the linkage A 1 B which raises lever 24, the kinetic energy of the moving parts swinging the lever 39 over dead centre and causing the lever 24 to be lowered and disengaging the roller 27 from the lever as the plough completes its turn. When the lift linkage is operated to lower the plough into working position the crossshaft 11 rotates causing the roller 27 to slide up the cam face and re-engage in the position shown in full lines.
Patent GB-852809-A (GB)
Title: A variable energy linear particle accelerator
Inventor: GALLOP JOHN WINSTON
IPC: H05H9/02
Filed: 1956-07-05
Abstract: 852,809. Linear particle accelerators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 5, 1957 [July 5, 1956], No. 20925/56. Drawings to Specification. Class 39(1). The output energy of a travelling-wave linear accelerator having a wide band slow wave structure is varied by varying the frequency of the R.F. excitation and, preferably, the strength of the magnetic focusing field is correspondingly adjustable. The invention is described with reference to the spiral accelerator of Specification 737,098 where the focusing field strength is correspondingly variable to maintain the equalibrium of the particles in a stable orbit, but the application of the invention to an accelerator using the strong focusing principle is also referred to. As described the waveguide structure has helical inner conductor, preferably a double cross-wound helix, and the non-linearity of the relationship between helix pitch and phase velocity may be compensated in one of the following ways, (1) trimming the magnetic field locally by local booster coils or shimming, (2) varying the diameter of the outer conductor of the waveguide or (3) inserting removable dielectric material or metal screens between the inner and outer conductors. The helix and the associated magnetic field system may be divided into two or more sections having different free space wavelengths. The helix may be formed of tubing through which cooling water is circulated. The magnetic field and R.F. oscillator controls are ganged together.
Patent GB-292802-A (GB)
Title: Improvements relating to devices for extinguishing the flames of blasting charges and for causing the disturbed dust and smoke of the explosion gases to settle
IPC: F42D5/04
Filed: 1927-08-11
Abstract: 292,802. Witte, M. Aug. 11, 1927. Blasting.-In a device for extinguishing flame from blasting charges, settling the disturbed dust and dispersing the smoke, whererin ignition is effected when a water discharging device is brought into operation, an air chamber is supplied with water which is suddenly released by opening an outlet of large cross section, the blasting charge being simultaneously ignited. The container a has an outlet b normally closed by a piston c which is held in position by a rod e having a weak insertion f of predetermined strength. The container is supplied with water from a connected pipe, air escaping past a valve g. Compressed air is then admitted through a pipe h and at a given pressure the insertion f is fractured and the piston c is ejected, the piston c also rocking a lever i against a contact m to effect electric ignition of the charge. The piston c is deflected from the path of the escaping water by an attached rope &c. p. The outlet b may contain inclined guide blades to distribute the water.
Patent GB-248793-A (GB)
Title: Improvements in dyeing, washing and like apparatus
IPC: D06B5/00
Filed: 1924-09-08
Abstract: 248,793. British-American Laundry Machinery Co., Ltd., (American Laundry. Machinery Co.). Sept. 8, 1924. Washing - machines with rotary receptacles; blueing - apparatus.- The perforated rotary receptacle 3 is radially spaced from the stationary casing 1 around its whole circumference sufficiently to enable the treating liquid, which is injected by steam through a perforated pipe 16, to be sufficiently mixed with the water in the stationary casing before passing to the rotary receptacle. The water 14 is initially heated by steam passed through the pipes 18, 19 at opposite ends of the casing to perforated pipes. in the bottom of the casing. At the junction of one of these pipes 16 with its supply pipe 18, an injection casing 28 is provided which also communicates through conduit 26 and valve 27 with a tank 25 containing the treating liquid. When the water 14 has been sufficiently heated, the valve 27 is opened and the treating liquid in the tank 25 is injected by the steam, supplied through pipe 18, through the pipe 16 into the water 14. When the operation has been completed, valves 20 in the steam-supply pipes are closed and the treating solution is drained from the casing through the outlet 33. The perforated pipes may then be cleaned out by opening the steam-supply pipe valves 20 and the outlet pipe valves 23.
Patent GB-236763-A (GB)
Title: An improved bearing for under-water shafts
IPC: F16C17/14
Filed: 1924-09-09
Abstract: 236,763. Mirrlees Watson Co., Ltd., (Leggett, S.). Sept. 9, 1924. Cylindrical journal bearings.-A bearing for underwater shafts and capable of being placed on a shaft as a unit comprises an outer shell 1 having a bearing surface composed of hard rubber strips disposed longitudinally or helically. Water which is circulated by vanes 5 on a cap 4 on the shaft through passages 3 between the rubber strips 2 carries away any sand that enters the bearing.
Patent GB-692906-A (GB)
Title: Improvements in and relating to the manufacture of piston rings
IPC: B23B5/26
Filed: 1951-09-11
Abstract: 692,906. Turning piston-rings. ISLER, F. Sept. 11, 1951 [Sept. 18, 1950], No. 21339/51. .Class 83 (iii). A method and apparatus for turning the peripheries of piston-rings comprises locating a number of cast rings 1, ground to thickness, on a mandrel and clamping them between a shoulder 2 and pressure-plate 4 which are both shaped to the final ring shape required, the plates being then used to control the movements of a turning tool whereby the rings are shaped. The rings are held by a nut 5 and the mandrel has centreholes at each end for mounting in a copying lathe. A segment is finally cut out of the rings after they have been turned to shape.
Patent GB-605047-A (GB)
Title: Improvements in or relating to bricks for building purposes
IPC: E04C1/40
Filed: 1944-11-01
Abstract: 605,047. Bricks. BERRY, A. F. Nov. 1, 1944, No. 21340. Drawings to Specification. [Class 87(i)] A cold process brick comprises a puzzolanic body portion with a layer of material of about # in. thickness on. its top or bottom and one end face coloured so as to resemble a mortar joint when the bricks are laid together with the minimum of jointing material.
Patent GB-390698-A (GB)
Title: Improvements in collapsible chairs
IPC: A47C4/38
Filed: 1932-07-29
Abstract: 390,698. Collapsable seats. PARSONS, E. E., 75, Latimer Road, Notting Hill, London. July 29, 1932, No. 21359. [Class 52 (ii).] A chair, collapsable both sidewise and from front to rear, comprises side frames each constructed, as shown in Fig. 2, and connected together by cross frames, as seen in Fig. 1. The side frame brace D is linked with the rear upright by a rigid strap a and similar straps K connect the cross frames with the front and rear uprights.
Patent GB-677548-A (GB)
Title: Improvements in and relating to stop-motions for weaving looms
IPC: D03D51/00
Filed: 1949-08-17
Abstract: 677,548. Stop-motions for looms. BARTON, H. Aug. 9, 1950 [Aug. 17, 1949], No. 21366/49. Class 142(i) A warp-stop motion, of the type having drop wires suspended above sliding serrated bars, is connected to the loom knock-off handle and brake through the " stop-on-pick " weft fork mechanism. When a warp thread breaks, a cable 6, usually connected to the knock-off handle, is pulled. A lever 4, pivoted on a bracket 2 on the reciprocating rod 1 of the weft stop-on-pick mechanism, is drawn down against a spring 5 and engages a plate 8 fixed on the underside of the slay 7. This engagement prevents the reciprocation of of the rod 1 and the rod fails to move a shutter covering a slot, and when the slay moves forward the brake lever and loom knock-off handle are operated simultaneously.
Patent GB-315326-A (GB)
Title: Improvements in and relating to transformers
IPC: H01F27/28
Filed: 1929-07-11
Abstract: 315,326. British Thomson-Houston Co., Ltd., (Assignees of Brand, F. F.). July 11, 1928, [Convention date]. Transformers.-In a high tension auto-transformer in which the winding is earthed at one end 8, the common and series parts of the winding being connected respectively to the low tension and high tension circuits at 5 and 4, an auxiliary winding comprising sections 7, 8 magnetically coupling the common and series sections of the main winding in closer inductive relationship is provided, the auxiliary winding and an intermediate point 6 on the main winding being conductively connected to the core which is insulated from earth. Thus the potential difference between adjacent parts of the two windings and between the windings and the core rises from zero at the centre to a maximum at the ends which does not exceed one half of the voltage of the high tension winding. This difference of potential is dealt with by graded insulation in the form of insulating cylinders 12 having end flanges 13. Reference has been directed by the Comptroller to Specification 165,435.
Patent GB-423436-A (GB)
Title: Improvements in or relating to gripping tools such as vices
IPC: B25B3/00
Filed: 1933-07-29
Abstract: 423,436. Vices. MUTER, A. J., 74, Crescent Road, Wood Green, TYDEMAN, C., 3, Chichester Rents, Chancery Lane, and WILLIAMSON, G. A., 12, Holmesdale Avenue, East Sheen, all in London. July 29, 1933, No. 21392. [Class 61 (ii)] A gripping-device comprises a body formed in two parts each providing a side wall 2 and a handle part 5 ; the spaced side walls 2 are recessed to provide guides for the bases 3 of gripping jaws 4 which are actuated by a right and left screw 8 retained against axial movement by a pin 12 engaging an annular groove 11 or by an annular collar engaging a slot in the body. The two body parts are secured together by bolts or rivets, the handle 5 enabling the device to be used as a hand vice or it may be clamped in a socket 17 on a bracket 16 screwed to a bench.
Patent GB-832398-A (GB)
Title: Improvements in or relating to electric position limiting control circuits
IPC: G05D3/16
Filed: 1957-07-05
Abstract: 832,398. Automatic control systems. COLLINS RADIO CO. July 5, 1957 [Nov. 19, 1956], No. 21406/57. Class 38 (4). In an arrangement for limiting the movement of a mechanical element which moves in one direction or the other in dependence on the phase sense of an A.C. signal, a switch, closed by the mechanical element near the limit, connects a diode limiter to electron discharge means in the phase sense detector. In Fig. 1, a bracket 17 carrying the aerial 10 of an airborne weather radar system is supported by a housing 11 which is rotated about a vertical axis in the aircraft by a motor M 2 . Aerial 10 is maintained in a horizontal plane of rotation despite variations in the attitude of the aircraft by a motor M 1  which moves bracket 17 about a pivot point 19 relative to housing 11. Deviations of aerial 10 from a horizontal plane of rotation relative to the aircraft selected by a knob 53 are detected by means 51 which include a gyroscopic or pendulum reference, are coupled to motor M 1 , and produce an A.C. signal dependent in magnitude and phase sense on the magnitude and sense of the deviation. This signal is applied to a phase-sensitive circuit 28, including triodes 36, 37, which by virtue of an A.C. reference source 31 produces a D.C. signal of corresponding magnitude and polarity to correct the deviation by controlling motor M 1  through a saturable reactor arrangement 21. The permissible movement of bracket 17 is limited in each sense by stops 61, 62 and, to prevent undue shock and heavy motor stalling currents at the limits, switches 63, 64, which are respectively closed by motor M 1  just before each limit stop is reached, connect a rectifier 66 to the grid of the appropriate triode valve 36 or 37 to reduce the energization of motor M 1 . Use of transistors instead of valves is referred to.
Patent GB-287772-A (GB)
Title: Improvements in or relating to vaginal dilating bags
IPC: A61M29/02
Filed: 1927-08-15
Abstract: 287,772. Tomasulo, C. P. Aug. 15, 1927. Heating appliances; uterine appliances; specula and other dilating instruments.-A device for heat treatment uterine ailments comprises a hollow plug of aluminium &c. formed with a tapering body portion 1, Fig. 2, an outer flange 2, and a stem 3 to which a warm water 'supply tube is attached. An expansible balloon 5 for the reception of the warm water is attached by binding 6 to, and is adapted to be folded and stowed within, the body portion 1, which is then inserted in the part to be treated. The balloon 5 is next filled with warm water forced from a vessel 7, Fig. 1, through pipe 14, tube 9, coupling 11, and tube 4 by a bulb 16 or an air pump. When it is desired to replace the water, or to collapse the balloon prior to removal, the water is withdrawn through tube 4, coupling 11, and tube 10 to a vessel 8. Tubes 9, 10 have control clips 12.
Patent GB-1072501-A (GB)
Title: Process for producing yarns
IPC: D02G3/32
Filed: 1964-05-25
Abstract: In core spinning an elastic core with a roving, the roving is displaced on the forwarding rolls upstream of the twisting point to the right of the core if the composite yarn is to be Z-twisted and to the left of the core if the composite yarn is to be S-twisted by a distance not greater than 1/8 ".  In examples the core is composed of a spandex filament and the roving of wool fibres, or the core is a blend of spandex and polyester fibres and the roving is composed of polyester fibres.  The roving may contact the rolls upstream of the nip in order to flatten the roving.
Patent GB-773751-A (GB)
Title: Reduction of epoxy ketones to 16-a,20-a-dihydroxy-steroids
IPC: C07J7/00
Filed: 1955-07-27
Abstract: The invention comprises 5-pregnene-3b ,16a , 20a , 21-tetrol and its tetra-acetate derivative, and a process for the preparation of 16a ,20a -dihydroxysteroids by treating a 16a ,17a -epoxy-20-ketosteroid with an alkali metal in an anhydrous alcohol.  In examples: (1) 16a ,17a -epoxy-5-pregnen-3b -ol-20-one in anhydrous ethanol is treated with metallic sodium, the mixture cooled, diluted with water and 5-pregnene-3b ,16a ,20a -triol extracted with ethyl acetate; its structure is confirmed by conversion into 5-pregnene-3b ,16a ,20a -triol triacetate, which is saponified with potassium bicarbonate to the 16,20-diacetate and then oxidized using cyclohexanone and aluminium isopropoxide to 4 - pregnene - 16a ,20a  - diol - 3 - one diacetate; (2) 16a ,17a  - epoxy - 5 - pregnene - 3b ,21 - diol - 20-one diacetate is treated with sodium in ethanol and the product acetylated to yield 5 - pregnene - 3b ,16a ,20a ,21 - tetrol tetra-acetate which on saponification gives the free tetrol.