baber/WOPTO huggingface dataset:
Patent GB-710769-A (GB)
Title: Multi-bit rotary drilling unit for drilling holes and shafts of large diameters
IPC: E21B21/00
Filed: 1951-09-17
Abstract: 710,769. Rotary drills. PERKINS, W. H., and GRANT, A. Sept. 17, 1951 [Sept. 27, 1950], No. 21828/51. Class 85 A rotary drilling unit comprises a plurality of rotating bits, the cutting areas of which overlap to produce a non-circular hole, and a driving motor 8 or motors attached to and sinking with said bits The periphery of the drilling unit is so shaped as to have a cross-section that conforms with the configuration of the hole so that, although the unit may move axially in said hole, rotation about the axis of said hole is prevented The unit may have a drill 11 and two diametrically opposed drills 10, which are so positioned as to cut  holes 3 intersecting the hole 2 made by the drill 11. Alternately a number of drills may be disposed symmetrically around a main drill, or there may be provided two drills substantially equal in diameter and disposed so that one consistently overlaps the other. Reference has been directed by the Comptroller  to Specification 671,793.
Patent GB-1362763-A (GB)
Title: Television apparatus
IPC: H04N9/093
Filed: 1972-05-10
Abstract: 1362763 Television ROBERT BOSCH FERNSEHANLAGEN GmbH 10 May 1972 [19 May 1971] 21853/72 Heading H4F To automatically align the rasters in a colour television display tube, a black and white scene must be scanned such that changes simultaneously occur in all three colour (R.G.B.) signals. The invention is concerned with the detection of video signal due to a black and white portion of a scene which may also contain coloured portions, and relays on the principle that colour difference signals (W-R) (W-B), (W-G) are zero only for a black and white scene. The difference signals (W-R) and (W-B) are produced by difference amplifiers 1 and 2 respectively and are applied to a gate system 11 delivering a negative signal at its output 23 whenever either of the difference signals are not zero. Thus when (W-R) is positive, diode 16 is enabled and the negating (inverting) output of a difference amplifier 12 is energized, whilst when (W-R) is negative the negative signal passes enabled diode 17 to the positive input of 12 giving the required negative output. The negative outputs are collected in mixer 24 and fed via an integrator 26 to a threshold device 27. The automatic raster alignment is thereby inhibited by the output of device 27 indicating that a significant amount of the scene contains colour. Low pass filters 8, 9 may be switched in to remove error producing high frequency components. To stop the blanking signals from being detected as a black and white scene indication, the blanking pulses in the luminance signal are displaced from black level to white level. The blanking pulses in the R and B signals remain at black level.
Patent GB-285328-A (GB)
Title: Improvements relating to brake mechanism
IPC: B61H15/00
Filed: 1927-08-19
Abstract: 285,328. Marty, L. Aug. 19, 1927. Addition to 275,598. Compensating for wear.-In order to obtain a better initial adjustment of the slack-adjusting mechanism described in the parent Specification, the teeth on the rod 4, instead of having parallel grooves, are formed as a screw thread so that the rod 4 can be rotated within the jaws 8, 9 to the initial position required. Also, the longer jaws 8, of which two are provided in diametrically opposed relation forming a cross with two jaws 9, are provided with bevelled ends 15, 16 co-operating with bevelled surfaces on the plug 7 and a washer 18 respectively, and are pressed towards the rod 4 by an axially disposed spring 19 bearing against the washer 18. In case of breakage of the spring 19, its functions are carried out by a sleeve 20, Fig. 2, which is provided with two spaced teeth 22, 23 and is capable of being displaced laterally to a small extent on a fixed pin 21 when the rod 4 is advancing a tooth relative to the jaws 8. The main actuating spring 12 is disposed externally to the sleeve 3 within a sheath 11, and an additional sheath 25 protects the outer end of the rod 4 from access of mud and dust.
Patent GB-489895-A (GB)
Title: Improvements in or relating to the delustring, waterproofing and finishing of textile materials
IPC: D06M11/57
Filed: 1937-08-09
Abstract: A stable concentrated dispersion, suitable on dilution for use as a one-bath delustring, water-proofing and finishing treatment comprises a wax, an inorganic delustrant, and a stabilizer which will keep the wax and delustrant in stable concentrated dispersion.  The stabilizer is preferably tapioca starch.  Other p  additions which may be made to the dispersion are a soluble bi-or trivalent metal salt, e.g. aluminium sulphate, a soap, a sulphonated oil, a fatty alcohol a fatty alcohol sulphonate, and a protective colloid, e.g. glue or gelatine.  In an example, soap and gelatine are separately dissolved in water, mixed and emulsified with molten paraffin wax; aluminium sulphate and soda ash are separately dissolved in water, added to the wax emulsion and the whole emulsified; to this emulsion are separately added tapioca starch solution, a paste of titanium oxide and some benzoic acid or formaldehyde and the whole again emulsified. The resulting paste is stable in concentrated form and may be diluted with 10-300 volumes of water for use.ALSO:Textiles are simultaneously delustred, water-proofed and finished by immersion in a bath obtained by diluting a stable concentrated dispersion comprising a wax, an inorganic delustrant, and a stabilizer which will keep the wax and delustrant in stable concentrated dispersion.  Suitable delustrants are titanium oxide or dioxide; zirconium, barium and lead oxides; barium and lead sulphates.  The stabilizer is preferably tapioca starch.  Other additions which may be made to the dispersion are a soluble bi- or trivalent metal salt, e.g. aluminium sulphate, a soap, a sulphonated oil, a fatty alcohol or fatty alcohol sulphonate, and a protective colloid, e.g. glue or gelatine.  In an example, soap and gelatine are separately dissolved in water, mixed and emulsified with molten paraffin wax; aluminium sulphate and soda ash are separately dissolved in water, added to the wax emulsion and the whole emulsified; to this emulsion are separately added tapioca starch solution, a paste of titanium oxide and some benzoic acid or formaldehyde and the whole again emulsified.  The resulting paste is stable in concentrated form and may be diluted with 10-300 volumes of water for use.
Patent GB-1029654-A (GB)
Title: Improvements in or relating to fasteners for use in, and to methods of, blind riveting of apertured members
Inventor: JEAL HARVEY PHILIP
IPC: F16B19/10
Filed: 1961-06-19
Abstract: 1,029,654. Rivets. AVDEL Ltd. June 14, 1962 [June 19, 1961]. No. 22026/61. Heading F2H. A mandrel 16 to be pulled into a rivet 10 so that it breaks at a weak point 24 is of reduced cross-section to form a neck 22 next to its head 17 and, during riveting, material of the rivet 10 is forced on to the neck. The diameter of a shoulder 23 below the neck 22 is equal to that of the mandrel main stem and this is larger than the smallest diameter of a tapered portion 14 of the rivet bore before the mandrel is forced into the rivet when pre-assembling the two. The rivet 10 is crimped, after receiving the mandrel 16, at a region 36, Fig. 7, to lie within the thickness of plates 32, 33 to be joined although this crimped region may extend beyond the thickness, Fig. 10 (not shown), so that the rivet wall collapses to produce a bulge 40, Fig. 12. The crimping makes constant the internal diameter of the greater part of the rivet shank. The crimping may be uniform or in four parts with ribs between, Fig. 11 (not shown). The underside of the mandrel head 17 may be planar or be concave with a frustoconical margin 21. The neck 22 and break point 24 may be of elliptical section, the ends of the major axes producing the vertical extensions of the shoulder 23 indicated in the drawings since the axes are equal to the mandrel diameter. The minor axis of the point 24 is less than that of the neck 22. In modified forms of the neck 22, Figs. 4a-4e (not shown), it is cylindrical, has annular ribs, which may be frusto-conical, is itself frusto-conical, or is reduced to a short smooth portion adjacent to splines formed by squeezing its main area. The mandrel break point 24 may have a crosssection with two opposed straight sides joined by two opposed curved sides corresponding to similar portions of the main stem, Figs. 8, 9 (not shown).
Patent GB-417784-A (GB)
Title: Combined furnace back bridge and boiler water circulator
IPC: F23M3/00
Filed: 1934-07-28
Abstract: 417,784. Firebridges, DALGLISH, W., 124, Terregles Avenue, Pollokshields, Glasgow. July 28, 1934, No. 22076. Addition to 413,149. [Class 51 (i).] The water supply and delivery pipes of the water-cooled firebridge C described in the parent Specification are modified by connecting the inlet pipe D, which passes through the furnace ashpit, by a cock K to the front of the boiler, or to the boiler shell, and by connecting the outlet pipe E, which passes through the furnace, to the shell of the boiler by a cock L. A safety valve may be provided on the inlet or outlet pipes or cocks as shown at M. A blow off pipe N leads from the bottom of the firebridge through the ashpit to the front of the boiler where it is provided with a cock.
Patent GB-1096188-A (GB)
Title: Blow molding machine
IPC: B29C49/56
Filed: 1965-05-25
Abstract: 1,096,188. Extrusion/blow-moulding. R. J. NAULT. May 25, 1965, No. 22092/65. Heading B5A. In an extrusion-blow moulding machine the extruder unit, comprising the hopper 24, the plunger 30, the barrel 22 and the cross-head die 32, 34, is carried by a support 18 adjustably mounted on plates 20 extending from a bracket 12. A mould platen 48 is fixed to the bars 44 which extend through the end pieces 14, 16 of the bracket 12 and on which the second mould platen 52 is slidable under the action of a piston within a cylinder carried by a support 66 fixed to the bars 44. To ensure synchronous motion of the platens 48, 52 they are interconnected by flexible chains 56 which engage fixed sprockets. Limit stops are provided for the platens. The mould closing movement is initiated by a limit switch actuated when the extruded parison reaches a predetermined length. Blowing is effected through the extruder die. On separation of the platens the cutter bar 40 is operated to separate the article from the extrudate.
Patent GB-1271083-A (GB)
Title: Liquid-vapour contact means
Inventor: GARRETT MICHAEL ERNEST
IPC: B01D3/20
Filed: 1968-05-09
Abstract: 1,271,083. Fractionating and like columns. BRITISH OXYGEN CO. Ltd. 2 May, 1969 [9 May, 1968], No. 22112/68. Heading B1R. A fractionating or like column has superposed unobstructed trays such as 21 and 25 with downcomers such as 22 with a wall 26 which slopes downwardly towards the column wall such that, when the liquid loading is from 4 to 120 cm<SP>3</SP> S-1 per cm width of the downcomer, the downcomer is sealed by the turbulence of the downflowing liquid. As shown the lower end of wall 26 is curved at 27 to form a nozzle-like outlet for liquid flowing onto the tray 25. The wall 26 may be inclined at between 30‹ and 60‹ to the vertical.
Patent GB-320445-A (GB)
Title: Improvements in and relating to rotary table presses
IPC: B30B11/08
Filed: 1928-07-31
Abstract: 320,445. Spengler, P. J., and Spengler, J. P. July 31, 1928. Rotary mould-table machines; feeding; strain, preventing.-A press for bricks, coal, &c. comprises top and bottom rams so actuated by cam tracks that after a preliminary pressure the work is partly removed from the mould for de-aeration, and is subsequently submitted to pressure through resiliently-supported press plates. As shown in Fig. 16, the moulds are charged at A, subjected to preliminary pressure at B and final pressures at D and F, while at C and E the pressed brick &c. is moved respectively partly above and partly below the mould for de-aeration. The lower plungers 14<a> are actuated by a sectional cam track 27, 27a, 27<b>, 47, 48, 49. Pressure is applied to the upper rams at D and F by cams 31, 31<a> and to the lower rams through cams' 30, 30<a> resiliently supported upon members 54 pressed upwardly by springs 57 and connected to an hydraulic reservoir furnished with spring-loaded relief valves. To ensure even filling of the moulds they are filled from a charging-box k<4>, Fig. 10, moved in an elliptical path by a crank pin i<3> and slotted link l<3> embracing a pin m<3> which may further be actuated by a cam to cause the charging-box to move more rapidly in the direction of rotation of the table; alternatively, a rotary charger, driven by a chain or belt, is employed.
Patent GB-963344-A (GB)
Title: Reverse-drive safety device for a walk-type tractor or cultivator
Inventor: HOWARD ARTHUR CLIFFORD
IPC: B60K28/00
Filed: 1962-06-08
Abstract: 963,344. Controlling vehicles. ROTARY HOES Ltd. May 23, 1963 [June 8, 1962], No. 22217/62. Heading B7H. A clutch control mounted on the handlebar 10 of a walk-type tractor or cultivator includes a safety member 34 which extends in front of the operator and is actuated by the operator's body to effect clutch disengagement if the cultivator overruns the operator when travelling in reverse. A hand lever 16 is connected to a clutch withdrawal lever 21 by a Bowden cable 18. Upon encountering the operator the safety member 34 releases an over-centre linkage 32 permitting a spring 28 to extend a movable anchorage 24 for the sheath 22 of the cable 18, thereby actuating the clutch withdrawal lever 21. Telescopic guides 25, 26 for the movable anchorage 24 may be formed with slots 37 to facilitate assembly of the cable 18.
Patent GB-943534-A (GB)
Title: Improvements relating to electric lamp bulbs
Inventor: WRIGHT PETER
IPC: F21S8/00
Filed: 1959-06-29
Abstract: 943,534. Incandescent lamps. HUNTING ENGINEERING Ltd., and S. J. NOYCE. June 29, 1960 [June 29, 1959], No. 22294/59. Heading H1F. An electric lamp bulb comprises a glass envelope within which a filament is sealed and a moulded casing of plastics material substantially completely surrounding the envelope, the casing comprising a cylindrical or frustoconical holder portion having at least one electric lead projecting from it, and a head portion coaxial with the holder portion, there being a step or flange between the two portions whereby the holder may be inserted in an aperture and the step engaged with the mouth of the aperture. The plastics material may be transparent or translucent and may consist of one of the polystyrene, acrylic, polyethylene or nylon resinous compounds, cellulose acetate or methyl methacrylate. In the form shown in Fig. 1, the glass envelope 11 is enclosed in a plastic covering 16, the holder portion 17 of which is cylindrical and separated by a step 19 from an enlarged head portion 18. The leads 12, 13 from the filament are taken to metal tags 15 projecting from the covering. Projecting ears may be provided on opposite sides of the portion 17 to pass through small extensions in the panel aperture so that the body is secured in place by turning, a rubber 0-ring being interposed between the step 19 and the panel. The tags may be shaped to embrace the sides of the envelope. In a modification, one terminal consists of a cylindrical sleeve 42, Fig. 6, and the other of a central pin 43, the space between the sleeve and the envelope and pin being filled with plastic which also covers the end of the envelope and forms a head 45. The casing may be formed by injection moulding.
Patent GB-729478-A (GB)
Title: Electric snap-action switch
IPC: H01H13/36
Filed: 1952-09-05
Abstract: 729,478. Press-button retractive switches. ELECTRO-SNAP SWITCH & MFG. CO. Sept. 5, 1952 [July 12, 1952], No. 22319/52. Class 38 (5). A snap-action switch comprises two similar units A, B, fixed by screws 13 to a common mounting-plate, each unit comprising a pair of housing sections 14 mounted side-by-side (Fig. 1, not shown). Each unit has pairs of upper and lower fixed contacts 17, the upper and lower pairs being alternately engaged by contacts 18 on a spring-plate 19. Each plate 19 has a bight portion 20 at each end from which extends a tongue 21, the reduced inner ends 36 of which tongues bear under pressure against each other, whilst the medial portions 23 of the plate are laterally displaced at 19<SP>1</SP>. The tongue ends 36 of the upper and lower plates 19 engage slots 35 in stems 30, 34, respectively. An intermediate plunger 33 connects the stems 30, 34, and stem 30 is connected with lost-motion to a plunger 24 by a pin 32 engaging a slot 31 in the stem, Fig. 6. Plunger 24 carries a button 26 which is moved to its outermost position by a spring 28, as shown in Fig. 2. Depression of the button 26 causes the spring-plates 19 to snap their contacts 18 from engagement with the lower contact pairs 17 into engagement with the upper contact pairs 17. The lost-motion connection 31, 32 ensures simultaneous action of the plates 19 should one plate tend to move faster than the other. In a modification, Fig. 7, the lostmotion is obtained between the head 38 of a plunger 37 and the hollow interior of a button 40.
Patent GB-531788-A (GB)
Title: An improved temperature compensated inductance meter
IPC: G01R11/185
Filed: 1939-08-02
Abstract: 531,788. Compensating meters for temperature errors. LANDIS & GYR AKT.-GES. Aug. 2, 1939, No. 22380. Convention date, June 3. [Class 37] An induction meter has at least one bimetal strip fixed to and effective on the driving core so as to control both the pressure and current fluxes and thereby compensate the temperature error. The middle limb of the pressure core 2 is provided with projections 3, 4 between which and the external limbs 5, 6 are air gaps 7, 8. Opposite these are bi-metal strips 9, 10 fixed to the underside of the limbs 5, 6. Fixed to these strips are pieces of dynamo sheet iron 11, 12 to increase the permeability. Copper vanes 13, 14 extend into the air gaps 7, 8 for phase compensation. Opposite the strips 9, 10 are the pole plates 15, 16 of the current core 17. On a rise of temperature the bi-metal strips 9, 10 reduce the air gaps 18, 19 thereby shunting more of the pressure flux. At the same time the current driving flux is reduced owing to the increased distance between the strips 9, 10 and the pole surfaces 15, 16 of the current core. Reduction of the air gaps 18, 19 increase the inductance of the pressure magnet, thereby increasing the phase angle and compensating for any decrease that takes place on rise of temperature. The reduction in the shunt flux through the air gaps 7, 8 increases the reactance of the copper vanes 13, 14 and thereby increases the phase angle. The driving core may be so shaped that only one bi-metal strip is required. The bi-metal arrangement may be combined with a thermally sensitive alloy arrangement on the brake magnets.
Patent GB-301111-A (GB)
Title: An improved solar ray therapeutic apparatus
IPC: A61N5/06
Filed: 1927-08-26
Abstract: 301,111. Sawada, K. Aug. 26, 1927. Light, treating diseases with. - An appliance for medical treatment by sunlight comprises a tube 29 having at one end a lens for concentrating and directing the light upon the part to be treated and at the other end a screen for absorbing the heat rays comprising a glass plate marked on one or both sides with crossed lines of suitable absorbent material, e.g. water or oil solutions of metallic sulphides. The tube 29 has secured thereto a ring 38 carrying struts 36, 37 supporting a screen of opaque material 3 by the engagement of the struts with pockets therein. The appliance is so mounted as to be movable to any convenient position, the mounting comprising a stand 1 having a vertical pillar 3 on which slides a member 4, the motion being controlled by a pinion turned by a hand-wheel 7 and engaging a rack 2 on the pillar 3. The member 4 carries a cross tube 5 in which slides a bar 10 carrying a balance weight 11 at its free end. The sliding members 4, 10 are locked in any position by set screws. The bar 10 carries at its end a disc 14 upon which a disc 13 secured to a second bar 16 is movable, the discs being secured together by a set screw 14a engaging the disc 14 and passing through an arcuate slot in the disc 13. The bar 16 carries a T-shaped slide 19 which may be locked at any point along the bar and in the position shown or in inverted position by a set screw 20 engaging lower or upper longitudinal grooves 18, 17 in the bar. The vertical arm of the slide 19 is bifurcated as at 19a and provides a pivotal mounting for the tube 29. The tube 29 is rocked about its pivot by a pinion 26 engaging an arcuate rack 27 secured to the tube, and is secured in any position by a set screw 31.
Patent GB-773393-A (GB)
Title: R-f coupling arrangements for travelling wave tubes
IPC: C08G81/02
Filed: 1953-08-14
Abstract: 773,393. Two-part couplings. STANDARD TELEPHONES & CABLES, Ltd. Aug. 14, 1953 [Aug. 21, 1952], No. 22491/53. Addition to 706,958, [Group XL (a)]. Class 38 (1). [Also in Group XL (b)] The travelling wave tube of the parent Specification having R.F. input and output terminals disposed at one end of its housing is modified by the provision of a pair of posts 36 for engagement with a coupling adapter. The terminals 6, 8 are of the coaxial type and extend through the cup-shaped end plate 18, 19 of the tube, being sealed by insulating sleeves 12, 15. The inner conductors 11, 14 have extensions 16, 17 which are received within the tubular inner conductors 30 of a pair of conventional couplers 27, 28 mounted on one side of the base plate 24 of the coupling adapter. To secure the adapter in position a pair of screws 35 are inserted through the base plate 24 into threaded holes in posts 36. The outer conductors of the terminals are received within sleeves 33, 34 attached to the adapter. A modification (Figs. 3, 4, not shown) is described in which the adapter takes the form of an aligned pair of waveguides into each of which project extensions of the inner conductors of the terminals. The posts 36 are received within sleeves attached to the waveguides and are secured within the sleeves by radial set screws.
Patent GB-1348406-A (GB)
Title: Cathode ray tube arrangements
IPC: H04N3/237
Filed: 1971-04-19
Abstract: 1348406 Cathode-ray tube circuits LICENTIA PATENT-VERWALTUNGS GmbH 19 April 1971 [25 Feb 1970] 22502/71 Heading H4T Pincushion distortion (Fig. 1) in the line direction (East-West) of the raster scanned on the face of a cathode-ray tube, particularly a shadow-mask colour picture tube, is corrected by means of a transductor 6 (Fig. 2), the control winding 7 of which is supplied with a parabolic current of frame frequency (i, Fig. 3) and the working winding 5 of which is connected in parallel with the tangential correction ("S" shaping) capacitor 3 in the series circuit comprising the line deflection coils 4 and the line scanning transformer 2. Capacitor 3 and the inductance of the coils 4 are dimensioned such that they resonate at a frequency well below the line scanning frequency so that when the inductance of winding 5 varies as shown by curve L, Fig. 3, under the control of the current waveform i (Fig. 1), the decrease in the inductance of winding 5 and the increase in the resonant frequency towards the line frequency of the circuit formed by capacitor 3 and coils 4 both contribute to the increased current flow which is required to produce the increase in length of the scanning lines towards the centre of the raster. With this arrangement no increase occurs in the peak current of the line output valve such as occurs in known transductor control arrangements. When a large amount of correction is necessary, e.g. with a 110 degree tube, a second transductor connected in conventional manner (in series or in parallel with the deflection coils) may be employed.