baber/WOPTO huggingface dataset:
Patent GB-1205889-A (GB)
Title: A headphone
IPC: H04M1/05
Filed: 1968-05-31
Abstract: 1,205,889. Headsets. AKUSTISCHE U. KINO GERATE G.m.b.H. 31 May, 1968 [5 June, 1967], No. 26127/68. Heading H4J. A headphone has a spring heandband 1 which can be applied alternatively over the head (Fig. 1) or under the chin (Fig. 2) and carries an earpiece 4 on the outside of which is a cable connector 2 for a feed cable 7. The headband 1 is pivotally connected to the cable connector 2 by a pivot pin 3 mounted on the cable connector 2. The headband 1 is rotatable about the pivot pin 3 relative to the earpiece 4 between the two positions shown. As shown the pivot pin 3 is on the outside of the cable connector 2 but it may be within the cable connector 2 (Figs 3, 4, not shown). The end of the headband 1 then extends into the cable connector 2 through a slot of sufficient extent to permit movement of the headband 1 between the two positions. Detents may be provided for retaining the headband 1 in position, such detents being identified by numerals, symbols or marks. The headphone preferably also has a flexible arm 5 carrying a microphone 6. Stops may limit movement of the headband or microphone 6.
Patent GB-1113012-A (GB)
Title: Improvements relating to methods of printing on tally rolls
Inventor: SANCHEZ FERNANDO JUAN
IPC: G06C11/06
Filed: 1964-06-24
Abstract: 1,113,012. Checking receipts. BURROUGHS CORPORATION. 22 June, 1965 [24 June, 1964], No. 26216/64. Heading G4T. [Also in Division B6] In apparatus for printing on a tally roll in an adding machine or a cash register, a plate with embossed characters is inserted between hammers and the tally roll whereby depression of the hammers prints the characters through an inked ribbon on to the tally roll. A duplex printing system is employed wherein two carbon ribbons pass in front of the tally roll whereby when an invoice slip is placed in the guide instead of the embossed plate two records are made of the type on the depressed hammers. The type is set by a keyboard and depressed electrically on actuation of an adding key. The printing plate which is of flat or curved plastics has a tab for aligning it in the machine; the plate may be the cover of a rent or repayment book.
Patent GB-1014880-A (GB)
Title: Improvements relating to a device for producing high intensity magnetic fields
IPC: H01F6/00
Filed: 1964-06-25
Abstract: 1,014,880. Magnets; superconductive elements. FERRANTI Ltd. June 25, 1964 [July 1, 1963], No. 26238/64. Heading H1K and H1P. A device for producing a high intensity magnetic field comprises two or more interconnected flux pump stages each bounded by superconducting walls, located successively one within another, and operable in combination so that as the magnetic field strength within a stage becomes increasingly greater than the ambient magnetic field strength so the difference between the field strengths on the two sides of any said wall is maintained below the critical field strength of the wall material. In the embodiment shown, a closed heat-insulated tank 10 is liquid helium filled to the chain-dotted line and contains two coils 42 whose magnetic flux is pumped through two superconducting bodies 25, 17 to a region 18 where it is to be used. In operation, a wall 28A is rendered normal by energizing a heating wire 34 so that the flux from coils 42 can penetrate region 30, whereupon the heating wire is switched off to render the wall 28A superconducting again and a piston 30R is inserted into the region 30 to compress the flux between it and the body 25; then a heating wire 36 is energized to render normal a wall 24A and the flux expands to fill a region 26 after which the wall 24A is again rendered superconductive; this cycle of operation of the first stage is repeated until the flux strength in region 26 equals that of region 30 with the piston inserted. In the next stage the flux is passed to region 22 by energizing a wire 38, built up in strength by repeated cycles of operation, compressed by a further piston 22P, and passed to the region 18 by energizing a wire 40. Thus between high and low flux strength regions 18, 30 is an intermediate strength region 26 which prevents the superconducting walls 16, 24A becoming normal even at superconducting temperatures. In modifications the sequence may be changed, and other means e.g. intense local magnetic fields may be used to render the walls locally non-super-conducting. A cylindrical embodiment is also disclosed.
Patent GB-741986-A (GB)
Title: Improvements in or relating to methods of making glass and an optical glass made by such methods
IPC: C03C3/062
Filed: 1951-11-09
Abstract: 741,986. Glass compositions. LEITZ GES., E. Nov. 9, 1951 [Nov. 10, 1950], No. 26257/51. Class 56. Glass is formed by melting one or more Te oxides with at least one oxide of the third group of the periodic system, the Te oxide or oxides comprising more than 50 per cent by weight of the melt. In the examples given the oxide of the third group is Al 2 O 3 . Small amounts of glass forming substances, e.g. BeF 2 , SiO 2 , B 2 O 3 , GeO 2 , As 2 O 3  and Sb 2 O 2  may be added, but not the glass forming phosphates. Further oxides and/or fluorides may also be added. The colouring of the Te oxides may be reduced by using TeO 3 , TeO 2  with TeO 3 , or TeO 2  with inorganic peroxides such as Li 2 O 2 , Na 2 O 2 , or BaO 2 . The glasses melt between 750-900‹C, and the melt maybe made more fluid by adding cryolite. To obtain well defined melts it is advisable to use gold crucibles, if corundum crucibles are used the melt absorbs some Al 2 O 3  therefrom, but quartz crucibles are less attacked by the melt. The weight percentage composition of several examples are given using, (1) TeO 2  and Al 2 O 3  with or without Na 2 O 2  and/or SiO 2 , (2) TeO 2 , Al 2 O 3 , and SiO 2 , with or without Na 2 O 2 , and with one of LiF, CaF 2 , SrF 2 , BaF 2 , (3) TeO 2 , Al 2 O 3 , and SiO 2 , with or without Na 2 O 2 , and with one of Zno, In 2 O 3 , TiO 2 , GeO 2 , La 2 O 3 , Bi 2 O 3 , WO 3 , Ta 2 O 5 , or Tl 2 O, (4) TeO 2 , Al 2 O 3 , TeO 3 , La 2 O 3 , and SiO 2 . The refractive indices of these examples are, (1) 1.838- 2.036, (2) 1.833-1.985, (3) 1.9722-2.0515, and (4) 2.014.
Patent GB-159540-A (GB)
Title: Improvements in or relating to apparatus for enabling the angle of elevation of an object to be observed
IPC: G01C1/10
Filed: 1919-10-27
Abstract: 159,540. Booth, L. B., and Smith, W. S. Oct. 27, 1919. Sextant-type instruments. - In an instrument of the sextant type, particularly for use on aircraft, a bubble is used as a reference point and is viewed through a collimating objective lens, at the focus of which it lies substantially, and the bubble-container has a radius equal to the focal length of the lens so that movements of the bubble, which is seen by reflection, due to pitching &c. of the aircraft, follow and are equal to the apparent movements of the observed object, due to the same cause, both being observed by the whole pupil of the eye. The bubble 6 is viewed through a plane transparent reflector 8 and a collimating objective 7, a reflecting-prism 16 which deflects the light through an angle of about 120‹ being interposed between the bubble and the lens. The distance between the bubble and the lens and the radius of the container 10 are each equal to the focal length of the lens, allowing for the media through which the light passes. The star &c. of which the elevation is to be measured is viewed through the reflector, which is pivoted about an axis lying approximately in the axis of the lens and has a pin 13 engaging a cam 12 carried by a graduated knurled head 14. The bubble may be illuminated by a lamp 9.
Patent GB-1101250-A (GB)
Title: Improvements in or relating to thermostat elements
Inventor: LIPSCOMBE JOHN ALFRED
IPC: G01K5/44
Filed: 1966-06-13
Abstract: 1,101,250. Temperature responsive actuating elements. WALTON ENGINEERING CO. Ltd. June 13, 1966, No. 26350/66. Addition to 1, 100, 894. Heading G1D. A thermostat element as described in the parent Specification in which the entire surface of the face 31 upon which the wax in the chamber acts is convex by profiled, preferably domed.
Patent GB-1098346-A (GB)
Title: Electrolytic recording medium containing a hydroxynaphthoic acid
IPC: B41M5/20
Filed: 1965-06-22
Abstract: An electrolytic recording sheet for use with an eroding anode contains as marking agent in an electrolytically conducting solution an acid of the formula: <FORM:1098346/D1-D2/1> where the carboxyl group is in the 1 or 2 position, the hydroxyl group is ortho to the carboxyl group, and R is meta to the carboxyl group and is hydrogen, lower alkyl, -CH2Z or -CH(CH3)Z, where Z is: <FORM:1098346/D1-D2/2> where the carboxyl group is in the 1 or 2 position, the hydroxyl group is ortho to the carboxyl group and the Z radical is attached to the carbon atom in the position that is meta to the carboxyl group. The solution may contain as electrolyte a chloride, sulphate or nitrate of an alkali metal, and may also contain a solubilizer for the marking agent, e.g. glycerine, ethylene glycol, propylene glycol, trimethylol-propane or mannitol.
Patent GB-1379889-A (GB)
Title: Horizontal load carrier
IPC: B66C1/10
Filed: 1972-06-07
Abstract: 1379889 Counterbalancing; load carriers SAFETY TECHNIQUES Inc 7 June 1972 26472/72 Headings B8B and B8H A horizontal load carrier for use in depositing a load within or removing a load from an opening in a building comprises an elongate beam member 23<SP>1</SP> which is connected by means of spreader cables 261, 27<SP>1</SP> to the hoist line 22<SP>1</SP> of a crane, there being a sling 28<SP>1</SP> carrying a load 29<SP>1</SP> mounted on the end of the beam member 23<SP>1</SP> and on the other end of the beam member 23<SP>1</SP> is a counterweight carriage 38 whose position on the member 23<SP>1</SP> is adjustable therealong such that the beam member 23<SP>1</SP> remains substantially horizontal at all times both in a loaded and unloaded condition. A cable 41 is attached at its ends to respective stop plates 43, 44 and passes about a drum 52 mounted on the output shaft 51b of a gear-box 51 which is connected to a reversible motor 48 powered by two D.C. batteries 45, Fig. 6. On attaching a hook to the loaded sling 28<SP>1</SP> and raising the beam member 23<SP>1</SP> by means of the hoist line 22<SP>1</SP> the beam member 23<SP>1</SP> tilts in an anticlockwise direction and on reaching a predetermined tilt (which may be approximately 5 degrees) one of a pair of mercury switches (53), Fig. 7 (not shown), mounted at the side of the carriage 38 is actuated and thereby connects the batteries 45 to the motor 48 which causes the drum 52 to be driven in the appropriate direction to move the carriage 38 and the counterweights 30<SP>1</SP> located thereon, which initially are located towards the centre of the beam member 23<SP>1</SP>, towards the end 23e<SP>1</SP> of the beam member 23<SP>1</SP> thus returning it to a horizontal condition. On depositing the load the beam member tilts in a clockwise direction and the other mercury switch (53) causes the motor (48) to be driven in the opposite direction thus moving the carriage 38 and counterweights 30<SP>1</SP> towards the centre of the beam member 23<SP>1</SP>. The cable 41 is maintained taut by being attached at its ends to respective helical springs (57g, 56g), Figs. 8, 9 (not shown), located adjacent the end plates 44, 43 respectively.
Patent GB-850702-A (GB)
Title: Improvements in or relating to caravans
IPC: B60P3/34
Filed: 1958-08-18
Abstract: 850,702. Collapsible vehicles. WATSON, W. T. Aug. 18, 1958 [Aug. 28, 1957; Nov. 8, 1957], No. 26524/58. Class 108(1). A caravan has rigid upper and lower telescoping section 4, 1 each being provided with parts of the side and end walls of the erected caravan. The upper part 4 is raised by two internal partitions 12, 13, pivoted to the floor at 15 and having rollers 18 to engage the roof, a hand operated cable winch providing the necessary power. The partitions may be pivoted to the floor at the forward and rearward ends of the floor and be collapsed inwardly into abutting relation or two struts may take the position of a partition at one end of the floor to allow the struts to fit along the sides of the other collapsed partition.
Patent GB-906211-A (GB)
Title: Process for the production of filamentary materials from polyolefins
IPC: D04H3/07
Filed: 1960-07-29
Abstract: Polyolefin filaments are made by heating a molten mass of high molecular polyolefin to an elevated spinning temperature within a narrow range of 5 DEG C., at which the viscosity of the molten mass sharply decreases, then immediately spinning the mass at speeds of 400-1,500 metres per minute whilst cooling the filaments. Specified polyolefins include low pressure and high pressure polyethylene, and polypropylene.  The polyolefin may be uniformly heated to the elevated spinning temperature in the absence of oxygen.  Heating may be effected over a period of 1-6 mins. Specified spinning temperature ranges include 330 DEG -390 DEG C., preferably 360 DEG -380 DEG C. for polyethylene, and 310 DEG -370 DEG C., preferably 320 DEG -340 DEG C., for polypropylene.  Viscosity/temperature curves are used to determine the spinning temperature of the melt. The filaments may be air-cooled and after drawing-off, stretched at a draw ratio less than 1:6 at a temperature below 90 DEG C.  The process enables polyolefin filaments of fine denier to be made.
Patent GB-1105979-A (GB)
Title: Dyeing and printing process for molded metal modified olefin polymers
Inventor: CARBONELL JOSE
IPC: C08K5/23
Filed: 1965-06-23
Abstract: Metal containing unsaturated polyolefinic compounds are dyed with dyes of formula <FORM:1105979/D1-D2/1> in which R1 is a halogen or hydrogen atom or an alkyl, alkoxy, acylamino, urethane or nitro group, R2 and R3 independently of each other are hydrogen atoms or a substituted or unsubstituted hydrocarbon radical bound directly or through an oxygen atom or an acylamino or urethane group and in which at least one of R2 and R3 is different from hydrogen and the nitro group is in the 3, 4 or 5 position.  Preferably dyeing is effected at pH 1-7 at 90-140 DEG C in presence of a mineral acid or organic acid and a dispersing agent.  Metals referred to are copper, calcium, cadmium, aluminium, titanium, zirconium, chromium, manganese, iron, cobalt, nickel, zinc, dark brown shades are obtained.
Patent GB-441567-A (GB)
Title: Improvements in or relating to means for tipping vehicle bodies
IPC: B60P1/10
Filed: 1934-09-15
Abstract: 441,567. Tipping vehicles. DIXON, B. A., Sawrey, Ambleside, Westmorland, and CARY, C. E., The Manchester Spring & Axle Works, Red Bank Street, Manchester. Sept. 15, 1934, Nos. 26569/34, 9226/35, and 26818/35. [Class 108 (i)] The means for tipping a vehicle body comprises an auxiliary gear box the drive from which is transmitted through a reduction gear box to a third gear box having means under distant control for reversing or disconnecting the drive the third gear box having driving connections with the tipping mechanism. The body 2 is tipped about a pivot 3 by screw and nut gearing 33, 34 or other means from a shaft 8 driven from the vehicle engine. The shaft 8 is connected to the engine drive through an auxiliary gear box 4, and flexible coupling 7, a disconnecting lever 6 being provided. The shaft 8 drives a cross-shaft 12 through worm reduction gearing in gear box 9 and the shaft 12 has arranged at the end thereof in a third gear box 13 a gear 20 adapted to mesh with either gears 17, 18 which are continuously in mesh and mounted between plates 14 pivoted on shaft 16 having a gear 19 in mesh with the gear 17. The plates 14 are movable by means of links 21 by a lever 25 at the driver's seat and link 24 in order to place the gear drive in either neutral or tipping or reverse positions. The shaft 16 drives the tipping screw 33 through sprockets and chains 28... 30. When the body 2 reaches its upward and lower limits the lever 6 disconnecting the drive is automatically operated by means of the cable 37 and bell-crank 41.
Patent GB-1042078-A (GB)
Title: Electronic switching tube
IPC: G09G3/04
Filed: 1964-06-26
Abstract: 1,042,078. Electric discharge tubes. SYLVANIA ELECTRIC PRODUCTS Inc. June 26, 1964 [July 1, 1963], No. 26618/64. Heading H1D. An electronic switching tube comprises a cathode, a gating structure having parallel lines of perforations, the arrangement of perforations in each line being in accordance with a desired code, and different from that in any other line, and anode bars extending at an angle to the lines of perforations. The flow of electrons between cathode and anode bars is controlled by a plurality of independent conductors, one associated with each line of perforations. As shown in Fig. 3, the gating structure 14 comprises a mica or ceramic disc having ten conductive coatings 30 over and in the bores of lines 0 to 9 of perforations. The anode bars extend parallel to lines a to g, so that an input signal to line 7, for example, produces an output signal in circuits connected to anodes a, f, c. Each circuit may be connected to one of seven incandescent lamps A to G, Fig. 5, on a numerical display board. The structure 14 may be associated with a large area cathode comprising a heater embedded in a ceramic disc coated with emissive material, the anode bars comprising conductive strips on an insulating disc, e.g. one end of the tube envelope. The tube may comprise n lines of perforations and n anode bars each connected to a relay, motor or other control circuit. Also, the cathode and gating structure may be cylindrical, axially-extending lines of perforations being overlaid by conductive strips and associated with ring anodes, Fig. 7 (not shown).
Patent GB-1216597-A (GB)
Title: Bearing assemblies
Inventor: THRASHER HOWARD GREENE
IPC: G01C19/16
Filed: 1968-06-04
Abstract: 1,216,597. Ball bearings. LITTON INDUSTRIES Inc. 4 June, 1968 [5 June, 1967], No. 26647/68. Heading F2A.  A ball bearing assembly interconnecting two members 200 and 201 for relative rotation consists of balls 202 and 203 rolling over parallel flat surfaces of members 200 and 201, the surfaces being at right angles to the axis of relative rotation. The balls are provided with a cage 205 made of P.T.F.E. Balls 207 and 208 situated in races 209 and 210 carry radial load between members 200 and 201. The bearings are preloaded by means a leaf spring 214 acting via the spacer 213 on the race 210. The tension in the spring may be adjusted by means of the screw threaded member 215. The bearing assembly may be used in a gimbal suspension system which supports a gyroscopical stabilized platform in an aircraft. Magnets and electrical windings may be provided to apply torques to the gimbals.
Patent GB-1181271-A (GB)
Title: Sheet-Separating and Feeding Apparatus
IPC: G03G15/00
Filed: 1967-06-09
Abstract: 1,181,271. Separating sheets. RANK XEROX Ltd. 9 June, 1967 [13 June, 1966], No. 26764/67. Heading B8R. Apparatus for separating sheets from a stack before feeding to e.g. a xerographic copier, comprises a concave tray for supporting the stack, aerating means for fanning the topmost sheets from the stack, control and constraining means limiting this vertical sheet motion at the leading edge, and preventing vertical motion at the rear edge, and guide means for the topmost sheet as it is forwarded to a sheet conveyer. Fig. 2 is a top plan view of such apparatus in which a stack 305 of sheets is supported on an adjustably concave tray 41 which can be raised by a pulley and cable system, drive being supplied by motor (MOT-1) (Fig. 3, not shown) through limit switches operated by the stack of sheets. Manifold conduits 395 with apertures therein introduce air against the leading edge and leading corners of the top of the stack thus separating the leading edges of the topmost sheets from the stack, the penetration of air under the sheets being limited by a floating guide bar 401 positioned laterally across the sheets behind the leading edges. Vertical movement of the leading edge of the topmost sheet is limited by a plurality of resilient snubber tabs 410 mounted to the machine frame by brackets 411, and movement of the corners is further limited by floating constraining pins 333 mounted on adjustable blocks (332) (Fig. 3, not shown); these constraints serve to aid contact of the topmost sheet with suction feet (365) carried on rotatable manifold tube 366 and prevent double feed. Once suction is obtained, the tube 366 is rotated and the sheet forwarded to a conveyer (44) (Fig. 1, not shown); idler rollers 42, which are canted at an angle to the feed direction, pull the sheets taut for contact with the conveyer, and a plurality of guide plates 404 further serve to position the leading corners in correct registration with the conveyer. The switch circuits include sensing means coacting with the topmost sheet of the stack to control the height relative to the aerating means, and a device which senses when there is an insufficient number of sheets in the stack and then lowers the tray to allow for manual supply of further sheets to the stack, as disclosed in Specifications 1,122,623 and 1,122,627.
Patent GB-867554-A (GB)
Title: Improvements in the process of metallisation of ceramics
IPC: C04B41/52
Filed: 1959-08-05
Abstract: A ceramic body is metallized by applying a coating of molybdenum by a sintering process and coating the molybdenum with a layer of rhodium. The molybdenum powder may be mixed with manganese powder or a mixture of powdered manganese and a borosilicate glass may be interposed between the ceramic and the molybdenum as a flux.  The rhodium may be applied by electroplating and a layer of nickel or copper may be applied to the rhodium layer.
Patent GB-1023461-A (GB)
Title: Preparation of high molecular weight polyoxymethylenes
Inventor: SIGWART KARL
IPC: C08G2/00
Filed: 1963-07-05
Abstract: A process for the preparation of high molecular weight polyoxymethylenes which comprises the steps of (a) generating monomeric formaldehyde by pyrolysis of a low molecular weight polymer of formaldehyde (b) diluting said monomeric formaldehyde with an inert gas and/or the vapour of an inert organic solvent (c) scrubbing the mixture of monomeric formaldehyde and the inert gas and/or vapour of the inert organic solvent with an inert organic solvent at a temperature of above +10 DEG  C. and (d) polymerizing the monomeric formaldehyde by passing the stream of the mixture of monomeric formaldehyde and the inert gas and/or vapour of an inert organic solvent into an inert organic liquid containing a formaldehyde polymerization catalyst, said steps being carried out under sub-atmospheric pressure conditions at a formaldehyde partial pressure of below 300 mm.Hg. Paraformaldehyde is the preferred starting material.  The residual gas-mixture from the polymerization step may be recycled.
Patent GB-648899-A (GB)
Title: Improvements in and relating to water turbines
Inventor: ANDERSON HAROLD HENRY
IPC: F03B3/18
Filed: 1947-10-06
Abstract: 648,899. Hydraulic turbines. HARLAND ENGINEERING CO., Ltd. Oct. 6, 1947, No. 26841. [Class 110(iii)] The spiral inlet casing or scroll of an inward radial flow water turbine is formed by a pair of plates constituting side walls wholly or in part inwardly convergent towards the runner and capped by a plate forming an outer or peripheral wall. The scroll shown has side walls 1 inwardly convergent towards the runner 9 capped by a spiral peripheral wall 2. The water inlet portion changes smoothly from a circular section at the inlet flange 4 to the trapezium section of the scroll. The side walls 1 are opposed frustro-conical forms having a common axis coincident with the axis of the runner shaft 10. The cross-section of the scroll may be in the form of a trapezium with the corners cut off by parallel or outwardly convergent lines. The turbine is controlled by adjustable inlet gates 7 mounted on spindles 8.