baber/WOPTO huggingface dataset:
Patent GB-1139756-A (GB)
Title: Electric contact mechanism
IPC: H01H1/18
Filed: 1965-04-28
Abstract: 1,139,756. Retractive switches. TELEFONAKTIEBOLAGET L.M. ERICSSON. 28 April, 1966 [28 April, 1965], No. 18787/66. Heading H1N. A push-button 12 operates U-shaped contact springs 13 mounted on supports 9 on a mounting plate 6 through holes 7 in which the contact and terminal connecting ends of the springs protrude. Plate 6 carries several such pushbutton arrangements and is mounted on a printed circuit board 1 or, alternatively, itself comprises such a board. Projections 18 on springs 13 are engaged by ridges 19 of pushbutton 12, the button being given a trigger action by projections 21 thereon engaging knobs 24 of posts 10 as the button is depressed, the spring 11 restoring the button 12 to its outermost position with projections 21 engaging under books 23 of posts 10. A contact sliding action is produced, Fig. 2 (not shown), between the ends of the, springs 13 and the contact surfaces 4 in holes 3 of board 1. The supports 9 for springs 13 are joined by flexible webs 20 to plate 6 such that the supports 9 are relatively movable to provide such sliding action upon depression of button 12.
Patent GB-797662-A (GB)
Title: Improvements in the manufacture of fabrics comprising cellulose triacetate yarns
Inventor: FINLAYSON DONALD
IPC: D06M11/05
Filed: 1955-06-29
Abstract: Textiles fabrics made up at least in part of cellulose triacetate yarns are submitted to an "annealing" process which comprises thoroughly wetting the fabric and treating while still wet with wet steam or hot water, preferably at 120-160 DEG  C., whereby the degree of crystallinity of the cellulose triacetate is increased.  By this treatment wrinkling of the fabric during annealing is avoided and delustring tends to occur to some extent. If an unannealed cellulose triacetate fabric is to be treated with a hot aqueous dye bath, e.g. at 120-125 DEG  C., the fabric should preferably first be thoroughly wetted, since under such conditions annealing can occur.  The Provisional Specification also describes the treatment of fabrics comprising other cellulose esters, e.g. simple and mixed cellulose esters of propionic and butyric acids, having a propionyl or butyryl value of at least 25 per cent (reckoned as the acid) and containing less than 0.5, and preferably less than 0.35, free hydroxyl groups for each anhydroglucose unit.  Specifications 758,442, 776,346 and 797,661, [all in Group IV (a)], are referred to.  Specification 753,461 also is referred to.ALSO:Textile fabrics made up at least in part of cellulose triacetate yarns are submitted to an "annealing" process which comprises thoroughly wetting the fabric and treating while still wet with wet steam or hot water, preferably at 120-160 DEG  C., whereby the degree of crystallinity of the cellulose triacetate is increased.  By this treatment wrinkling of the fabric during annealing is avoided and delustring tends to occur to some extent. If an unannealed cellulose triacetate fabric is to be treated with a hot aqueous liquid, e.g. an aqueous dye bath at 120-125 DEG C., the fabric should preferably first be thoroughly wetted, since under such conditions annealing can occur.  The Provisional Specification also describes the treatment of fabrics comprising other cellulose esters, e.g. simple and mixed cellulose esters of propionic and butyric acids, having a propionyl or butyryl value of at least 25 per cent (reckoned as the acid) and containing less than 0.5, and preferably less than 0.35, free hydroxyl groups for each anhydroglucose unit.  Specifications 758,442, 776,346 and 797,661 are referred to also 753,461 in the Provisional Specification.
Patent GB-345585-A (GB)
Title: Improvements in stropping apparatus for safety razor blades
IPC: B24D15/08
Filed: 1930-06-20
Abstract: 345,585. Stropping-apparatus. JENKINS, G. B., Bowman Models, Dereham, Norfolk. June 20, 1930, No. 18838. [Class 60.] A device for stropping double edged safety razor blades consists of a blade-holder comprising two plates 1 hinged at 2 and fitting in a handle 3. One plate has two parallel arms 5 at its ends and having spherical ends 5a. The strop consists of a block 7 of wood &c. carrying a leather &c. strip 8 secured at one end to the block, and at the other end acted upon by a screw 10 to vary its tension. On the sides of the block are guides 11 to accommodate the ends 5a, and in order that, as the blade moves from the ends of the strop, the blade may be bent to press upon the strop, either the ends of the block are sloped at 7a, or the ends of the guides are bent upwardly. The guides may be of channel section, the arms 5 having rollers thereon to run in the channels.
Patent GB-858763-A (GB)
Title: Rotors for multi-stage axial flow compressors or turbines
Inventor: BUCKINGHAM DAVID EDWIN JAMES
IPC: F01D5/06
Filed: 1957-06-14
Abstract: 858,763. Elastic-fluid turbines. NAPIER & SON Ltd., D. July 28, 1958 [June 14, 1957], No. 18900/57.. Class 110 (3). In a rotor for a multi-stage axial flow turbine or, as shown, compressor the rotor blades 30 are mounted in circumferentially-spaced grooves 28 formed in the rims of discs 25 which resist the centrifugal forces, the axial dimension of the roots of the blades being different from, in this case less than, that of the part of the rims between the grooves, to provide circumferentially spaced projections 31, 32 which enter notches 37, 36 in annular driving members 35 between the successive discs. Annular locating and sealing members 38 are fitted between adjacent discs, their upstream and downstream edges extending beneath the platform portions of the blades carried by these discs. In a modi. fication the axial dimension of the blades is greater than that of the rims and thereby provides the projections for engaging the driving members.
Patent GB-801933-A (GB)
Title: An improved heater for coppers for wort and other liquids
Inventor: PFEIFFER GEORG
IPC: F28F3/12
Filed: 1955-06-30
Abstract: 801,933. Boiling pans. ADLAM & SONS, Ltd., G. June 15, 1956 [June 30, 1955], No. 18924/55. Class 64(1) A heater for a copper for boiling wort or other liquids comprises a plurality of smooth-walled hollow elements 1 connected at their upper ends to a steam supply and at their lower ends to an outlet for condensate, each element having strip-like baffles 5 therein to guide the stream downwards through the elements and to scour the condensate towards the outlet. In the form shown, the baffles 5 are secured in position by attaching them to spacer members 3 extending between 'opposite walls of each element. The elements 1 are secured together in a group by means of tubes 9 which extend through individual hollow bosses 7, 8 provided at the upper and lower end respectively of each element, each boss having ports 13, 14 for the admission of steam or discharge of condensate to or from the interior of the elements and the tubes 9 being suitably provided with ports 12, 15 in register with the ports 13, 14 in the bosses 7, 8. Reference has been directed by the Comptroller to Specification 732,991.
Patent GB-318135-A (GB)
Title: Improvements relating to rotary glass blowing machines
IPC: C03B9/24
Filed: 1929-06-20
Abstract: 318,135. Bullman Machine Co., Ltd., (Assignees of Hillmann, H.). Aug. 28, 1928, Blowing.-Relates to a rotary glass-blowing machine of the kind in which a number of mould units rotate about a vertical axis and in which the finishing moulds may be of different heights and are disposed on vertically adjustable tables. According to the invention, the moulds are opened by a cam and closed by springs, and the movements produced by the cams are transmitted to the moulds by vertical rotary shafts which allow the moulds to be moved vertically without necessitating movement of the levers which co-operate with the cam. The machine shown in sectional elevation in Fig. 1 is of the type in which the parison moulds 3 gather charges of glass by suction from an open forehearth 2. The base of the machine is an annular frame 4 on which a base ring 8 revolves, and the mould units are supported by vertical frames erected on the ring. Each frame consists of a box 10 and two vertical bars 11, 12 which are connected at their upper ends to a central retaining ring 14. Finishing-moulds, construction and mounting [Convention date]. of.-A bracket 30 which supports the blow mould 16 slides between vertical guides 29, Fig. 8, formed on the side walls 27, 28 of the box 10. On each side of the box is a pair of bearings 32, 33 for a vertical shaft 34, and an arm 57, feathered on each shaft, is connected by a link 58 to one of the halves of the mould. Another pair of vertical bearings 35, 36, Fig. 10, is formed on the rear of the box, and a shaft 37, journaled in these bearings, has secured to its lower end a lever 39 provided with a roller 38 which bears on a cam 40 arranged on the inner face of the frame 4 of the machine. A forked lever 41, also secured to the shaft 37, embraces the outer shell of a cylindrical spring housing 46 to which it is connected by links 44. A rod 47, secured to, and projecting inwards from, the wall of the box 10, supports a strong spring 49 and serves as a guide for the end cap 48 of the housing 46. Lugs 50, secured to the housing, are connected by rods 56 with levers 54 secured on the shaft 34. When the machine rotates, the shaft 37 is rocked by the cam 40 and the housing 46 is moved inwards. The mould 16 is thus opened and, at the same time, the spring 49 is compressed so that it closes the mould when the roller 38 runs off the cam 40. The mould bracket 30 can be moved vertically by a threaded spindle 61 to adjust it to the height of the blow mould in use for the time being. Specification 318,138 is referred to.
Patent GB-1144082-A (GB)
Title: Color display systems
Inventor: MATZEN WALTER THEODORE
IPC: H01J29/26
Filed: 1966-04-29
Abstract: 1,144,082. Luminescent screens. TEXAS INSTRUMENTS Inc. 29 April, 1966 [30 April, 1965], No. 18969/66. Heading C4S. [Also in Division H1] A luminescent screen (e.g. as in a colour TV tube), comprises a thin continuous single layer of a random mixture of first and second phosphor particles (e.g. LnS (20%) CdS (80%): Ag and ZnSiO 4 : Mn respectively of particulate diameter 3 to 10 microns) of which at least the second colour phosphor particles have a surface coating constituting a partial barrier to electrons, the first phosphor emitting light of a first colour (e.g. red) when energized by electrons of at least a first predetermined energy and the second phosphor emitting light of a complementary second colour (e.g. cyan) when energized by electrons of at least a second predetermined energy greater than said first. In disclosed apparatus a gaseous mixture of oxygen and an alkoxysilane (particularly tetraethoxysilane) intermixed with a phosphor particle carrying oxygen stream is swirled downwardly through a reactor at 500 C. to produce a polycrystalline silicon oxide e.g. silicon dioxide, film. Other barriers instanced are of aluminium oxide, tin oxide, composite layer of silicon dioxide with tin oxide, phosphorus, arsenic, lead or gallium or compounds thereof and may also be formed by in or out diffusion of impurities or activators, e.g. as formed by exposure of a zinc tungstate or silicate, zinc or calcium phosphate at elevated temperatures to vapour phase sulfur, oxygen, selenium or tellurium. In auxiliary measurements of the electron energization threshold, amorphous silica bonding the phosphor particles to a glass slide for exposure to an electron beam is formed by settling the particles through a potassium silicate-water containing barium acetate suspension and baking at 400 C.
Patent GB-159448-A (GB)
Title: Improvements in or relating to field magnets for magneto electric machines
IPC: H02K21/32
Filed: 1920-07-06
Abstract: 159,448. Weid, C. von der. June 12, 1920, [Convention date]. Magneto - electric machines.-A field magnet for magneto-electric machines consists of a permanent magnet a having the shape of an interrupted ring and pole-pieces b, c connected to the extremities by bridges d, e, which are peripherally shorter than the pole-pieces, the parts being concentric throughout and secured by common fastening - elements. The magnet a, as shown, is formed in parts a<2>, a<3>, but may also consist of one or several parts. The pole-pieces and the bridges may have a width inferior to the total width of the magnet a.
Patent GB-1218104-A (GB)
Title: Improvements relating to winches and load cable means associated therewith
Inventor: THOMSON JOHN STEVENSON
IPC: B66D1/26
Filed: 1968-04-23
Abstract: 1,218,104. Winches for cranes. J. S. THOMSON. 17 April, 1969 [23 April, 1968], No. 19001/68. Heading B8B. A winch comprises two winding drums 1, 2 each adapted to wind an opposite end of a single load cable of a crane, the drums selectively being either rotatable in unison or only one 1 being rotatable whilst the other drum 2 is held at rest. The drum 1 is fixed to a drive shaft 3 and the drum 2 is freely rotatable on the shaft 3, a dog clutch member 8 rotatably keyed to the shaft 3 being manually slidable along the shaft into and out of driving engagement with teeth 10 on the drum 2. The member 8 includes a groove 15 engageable with a roller 14 mounted on a clutch operating handle 12 pivoted to the winch frame at 13, the remote end of the handle operating a sliding spray 18. The latter is supported in the winch frame 6 and slides into engagement with a pocket 23 in the drum 2 to lock the same after the clutch has been disengaged, the spray automatically releasing the drum prior to reengagement of the clutch. A manually operated hand brake 21 for the drum 2 assists the clutching operation. In the embodiment of Fig. 2 (not shown), the winch is associated with a ship's derrick crane, the two reaches of load cable extending from the winch, over idler pulleys at the end of a slewing and luffing jib and down to a single pulley supporting a load hook, the latter being liftable with different purchase, by operation of one or both winch drums. The embodiment of Fig. 3 (not shown) is similar to that of Fig. 2, but the two reaches of load cable each pass over a pulley on the load hook and up to a common pulley suspended from the end of the jib whereby a greater purchase for load lifting is available.
Patent GB-1027737-A (GB)
Title: Semiconductor diode construction
Inventor: BROOM RONALD FRANCIS JOHNSTON
IPC: H01S5/024
Filed: 1963-05-14
Abstract: 1,027,737. Lasers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 14, 1964 [May 14, 1963], No. 19007/63. Heading H3B. [Also in Division H1] In a construction in which a semi-conductor diode is mounted between two end plates, a spacer, mounted between the end plates to hold them rigidly, is of a material of a coefficient of expansion similar to that of the diode. A semi-conductor diode 1, Fig. 2 (not shown), of gallium arsenide or phosphide, is mounted between two molybdenum plates 5, 6, the plate 5 being plated with gold and tin for contact with N-type region 2 and plate 6 being plated with gold and zinc for contact with P- type region 3. These plates serve as electrical contacts and are large enough to act as heat sinks. They are further held appropriately spaced by a member 7 of coefficient of expansion similar to that of the device 1 and, to ensure this similarity, the member 7 is preferably made from a semi-insulating form of the same material as the device 1. A sector of the spacer 7 is cut away to allow the passage of radiation emitted and, if desired, a second sector, opposite to the first, may be cut away to permit silvering of the rear face of the diode after the whole device has been assembled.
Patent GB-583145-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D1/153
Filed: 1944-10-05
Abstract: 583,145. Slicing-machine sharpeners. POWER, P. B., and JOLLY, T. Oct. 5, 1944, No. 19110. [Class 60] [Also in Group VI] A sharpener for a rotary knife 25 comprises a block 61 with pin 62 carrying a swivel head 63. A spindle 64 therein carries a pair of sharpening wheels 65, 65a. The swivel head 63 is held by two springs 66, 66a. By swinging one spring, for example 66a, about its pivot 67 clear of the swivel head 63, the other spring rocks the swivel head about the pin 62, thereby bringing wheel 65 in contact with the knife. Swinging the other spring 66 aside causes the other wheel 65a to contact the knife. The sharpening device can be located out of the way under its base plates 60 and inside an opening 75 covered by a closing plate 76 so that it is free from grease &c. To effect this, the sharpener is first slid to the right until the grooves 68 are disengaged from the casing, then turned over and slid back through the opening 75 in the casing. The opening 75 is closed by a back plate 76 which projects up from the base plate 60 when the sharpener is in the position of use but projects down from the plate 60 within the opening when out of use.
Patent GB-754786-A (GB)
Title: Improvements in or relating to clamps for securing rope or the like
IPC: F16G11/06
Filed: 1954-07-01
Abstract: 754,786. Rope &c. clamps. BROWN, S. W. July 1, 1954, No. 19322/54. Class 109. A rope &c. clamp comprises complementary plates 1 having longitudinally-arranged ropegripping channels 2, preferably formed with teeth 11, the channels opening into a guide surface 3 at their more-widely separated ends, the plates being clamped together on to the rope end by a screw 7, washer 8 and wing-nut 9. Registering holes 5 are provided in which the suspending hook is engaged. In use, the rope is threaded through one channel 2, then about the guide surface 3 and back through the other channel 2 and the plates clamped together. It is then knotted about the rope length and the loose end passed through registering holes 10 to present a neat attachment.
Patent GB-1020103-A (GB)
Title: Improvements in or relating to devices for the detection of insulation faults with respect to earth in polyphase alternating current electrical networks with an insulated neutral
IPC: H02H3/16
Filed: 1964-05-08
Abstract: 1,020,103. Fault testing. CHARBONNAGES DE FRANCE. May 8, 1964 [May 10, 1963], No. 19331/64. Heading G1U. [Also in Division H2] A circuit for indicating insulation faults with respect to earth of a network 2 supplied with polyphase A.C., e.g. from a transformer 1, with insulated neutral, comprises semi-conductor rectifiers 7A-7C connecting each phase to a common point 5 which is connected to earth through a resistance 8 and a current measuring instrument 10. The meter 10 may be calibrated in ohms and checks the overall insulation of the three phases as it will give the same indication for a resistance fault R on one phase as for 2R on two phases or 3R on three phases. A relay 9 may be included in the circuit to open the circuit-breaker 3 if there is a fault. The rectifiers 7A-7C may be protected by fuses 14A-14C and indicator lamps 15A-15C may be connected across the fuses.
Patent GB-516294-A (GB)
Title: Improvements in and relating to the production of flocculating gels
IPC: C02F1/52
Filed: 1938-06-29
Abstract: 516,294. Purifying liquids. SAMUEL, J. O., and UNIFLOC REAGENTS, Ltd. June 29,1938, No. 19341. [Classes 46 and 111] [Also in Group V] A flocculating gel of the kind described in Specification 435,126 is prepared by agitating modified starch with an aqueoussolution of a neutral metallic salt at 20-70‹C., till a thick and gummy paste is obtained. Suitable salts zinc, magnesium or lithium chloride, or thiocyanates or calcium chloride mixed with zinc or magnesium chloride. Modified starches are produced by treating starch with acids, such as hydrochloric or nitric, alkalies, oxidising agents such as perchlorates, dichromates, permanganates or peroxides, and salts such as calcium, zinc or magnesium chloride or thiocyanates till the cell walls are weakened and then washing out or neutralizing the reagent. Modified starches sold under the . names "Ogwen powder," " Tapwata " or " Octopus " or under the Registered Trade Mark " Rex " may be used. Gelling is completed in to 2“ hours.
Patent GB-310708-A (GB)
Title: A clip for holding together the crossing ropes or wires of wire and other rope nets, wirework and the like
IPC: B66C1/12
Filed: 1928-07-05
Abstract: 310,708. Heath, J. July 5, 1928. Wire fabrics. - The longitudinal and transverse wires 4, 5 are enclosed and secured at and adjacent their crossing points by being clamped between two identical discs 1 which are riveted together at 6. Intersecting grooves 2 are formed in the flat abutting faces of the discs, the grooves being of uniform width but being deeper adjacent their mid-points, as shown at 3, 3a, Figs. 2 and 5, to accommodate the double thickness of the wires at their crossing points. The length of the deepened portion of one of the grooves in each disc is greater than the length of the deepened portion of the other groove in that disc. The discs are clamped about the crossing points of the wires so that the groove having the longer deepened portion 3 in one disc coacts with the groove with the shorter deepened portion 3a in the other disc thereby more completely enclosing the wires.
Patent GB-976750-A (GB)
Title: Improvements in or relating to directional aerials
Inventor: CORNBLEET SIDNEY
IPC: H01Q19/06
Filed: 1961-05-30
Abstract: 976,750. Aerials. THE GENERAL ELECTRIC CO. Ltd. May 30, 1962 [May 30, 1961], No. 19567/61. Heading H4A. A wideband directional aerial assembly having a constant beam-width comprises a horn radiator 2 situated on the axis (but not at the focus 4) of a parabolic reflector 1, and a dispersive cellular lens 5 also positioned on the reflector axis. As shown, the assembly is housed within a rubber-lined tubular casing 6 closed at one end by the reflector 1 and at the other end by a fibre glass sheet 8. The beamwidth of the horn radiator 2 varies with frequency over the operating band (9000 mc/s.Œ 1800 mc/s.) but this variation in beam-width is compensated for by the changes in curvature of the wave fronts of the beam produced by the reflector and the lens, the arrangement being such that at the lower frequency end of the band said changes substantially cancel one another out. The assembly may also be used as a receiving aerial.
Patent GB-479830-A (GB)
Title: Improvements relating to dial indicating mechanism for weighing apparatus
IPC: G01G23/20
Filed: 1937-07-16
Abstract: 479,830. Weighing-apparatus. HUDSON, B., and HORSMAN, T. July 16, 1937, No. 19692. [Class 143] A dial indicating mechanism for weighing- apparatus comprises two quadrants 9 each secured to a pendulous resistant 3 and mounted pivotally upon a vertically displaceable shaft 13 on which is also pivoted a pair of indicatoroperating drums 5, the drums and the quadrants being connected to the frame by vertical metallic ribbons 14, 11. The pull due to the load on the machine is applied by a yoke to metallic ribbons 1 thereby rotating rollers 7 and raising cross-bars 4 carrying the shaft 13. The ribbons 11 cause the pendulums 3 to rise in opposite directions and the ribbon 14 rotates the drums 5 which in turn rotate the indicating spindle 15 by means of ribbons 12. In a modification, Fig. 3, 'the load is applied to the ends of the shaft 13 by a yoke 25<1>, the quadrants 9 and ribbons 11, 14 being reversed. Weighted levers 26 connected to the shaft 13 by shackles 38 balance the mechanism at no load position. Instead of actuating the indicator spindle 15 by means of ribbons 12, a rack and pinion may be used.