baber/WOPTO huggingface dataset:
Patent GB-316297-A (GB)
Title: Improvements relating to automatic band clips for pipes and tubes
IPC: F16L33/03
Filed: 1929-07-08
Abstract: 316,297. Malleville, J. P. M. July 27, 1928, [Convention date]. Clips, band.-Band clips care automatically tightened by springs or rubber engaging their ends. The ends e, e<1> may overlap, Fig. 1, and be engaged by a spring r, or they may approach, Fig. 2, the spring r being then mounted on a rod t. When the ends e, e<1> overlap, a spring in tension may surround the clip, Fig. 4 showing a rubber cable r<1>. Lever arms l,<1> l<1>, Fig. 6, may be used to amplify the movement of the spring, which is connected to one end e'. The band may be adjusted by a key pin connected at one end of the band. The springs may be banded by a binder, which may be fusible, or by screws or pins so that the spring, when released, will put instantaneous pressure on the clip.
Patent GB-731034-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D34/47
Filed: 1953-07-29
Abstract: 731,034. Lawn-mowers. CROWE, L. E., and CROWE, V. C. July 29, 1953 [Sept. 19, 1952], No. 21025/53.. Class 6 (2). A lawn-mower, of the sidewheel type, has pressed sidewheels 1 which each accommodates a laminated internally-toothed crown-wheel 2 with which engages a laminated pinion 3, Fig. 8, having all its laminations secured together by rivets 33, each pinion being mounted on one end of the cutter axle 31, and having a ratchet-recess 28 within the boss 29 to accommodate a sliding pawl 30 working in a slot in the axle 31. Each wheel 1 has a returned flange to which is secured a metal strip 14 stamped with a tread-pattern 15. The vertical wall of each side-wheel is formed with an annular depression 17 acting as a base for the crown-wheel 2, which is riveted to it and to a cover-plate 21 which co-operates with a further cover-plate 34 on the cheek-plate 8 of the machine to exclude dust. The ledgerblade 5 is carried by a transverse bar 6 terminating in laminated lugs 37 pivoted on pins on the cheek-plates and adjustable by screws 44, 45. The rear roller 9 is carried by brackets 50 slidable between ribs 48 formed on the cheekplates and clamped by nuts 52. The axle 31 of the cutter-cylinder 4 passes through bearings in sleeves 55 on the cheek plates and carries the laminated pinions 3 on its ends.
Patent GB-639013-A (GB)
Title: Fluorescent electric discharge lamp
IPC: H01J61/20
Filed: 1947-08-01
Abstract: 639,013. Discharge lamps. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 1, 1947, No. 21083. Convention date, March 10, 1944. Drawings to Specification. [Class 39 (i)] A lamp has oxide-coated electrodes, an internal fluorescent coating, mercury, and a gas filling consisting of argon and 0.3 to 1.5 per cent by volume of nitrogen. The operating pressure of the mercury vapour may be between 1 and 20 microns, and the argon pressure may be 3 mm. ; the quantity of nitrogen is preferably 0.7 per cent. The bulb is heated in an oven to 500 C. and the cathodes, which consist of oxide-coated tungsten coiled coils, are heated by increasing the filament current in steps until it is twice the normal value. Each step lasts 8 seconds, and the bulb is evacuated and flushed with argon at 3 mm. after each step. The fluorescent material may be magnesium tungstate and zinc silicate activated by manganese or beryllium. The gases may be introduced separately or as a mixture to form the final filling. The Specification as open to inspection under Sect. 91 states also that the gas filling may consist of argon, together with nitrogen or oxygen or a mixture thereof. The quantity of oxygen may be 0.1 per cent by volume. This subject-matter does not appear in the Specification as accepted.
Patent GB-820377-A (GB)
Title: Threshing machine
IPC: A01F12/46
Filed: 1956-07-09
Abstract: 820,377. Thrashing machines. BRAUD, A. July 9, 1956 [July 7, 1955], No. 21215/56. Class 6(3).  A threshing machine comprises two conveyers 3 and 27 mounted one on each side of the machine and having their lower sprocket wheels 7 and 7a respectively mounted one at each end of a transverse shaft 5. The housing for the shaft 5 is divided into two parts by a partition 9, the parts of the shaft on either side of the partition being provided with Archimedean screws of opposite hand so that as the shaft rotates the screw 24 feeds material to the conveyer 27 and the screw 23 to the conveyer 3. The upper sprocket wheel 21 of the conveyer 3 is rotated by the prime mover 19 and thereby sets in motion the conveyer 3, shaft 5 and conveyer 27. The ends of the shaft 5 are provided with crank pins 10 and 10a which, through links 11 reciprocate the cleaning trough 12, and the shaker 33 and fan 30 are also driven from the shaft 5 by means of a belt and pulley system. In the operation of the machine, grain is diverted from the cleaning trough 12 to the screw 24 for transport by the conveyer 27 to a storage bin 31, and any material from which grain has not been separated efficiently is fed from the cleaning trough to the screw 23 for transport by the conveyer 3 back to the threshing mechanism.
Patent GB-358916-A (GB)
Title: Improvements in or relating to television or like apparatus
IPC: H04N3/04
Filed: 1930-07-14
Abstract: 358,916. Television. WILSON, J. C. and BAIRD TELEVISION, Ltd., 133, Long Acre, London. July 14, 1930, No. 21254. [Class 40 (iii).] Scanning reflectors 71 are arranged on the inside of a curved surface 3. The surface may be cylindrical, conical, spherical, or ellipsoidal. As shown the reflectors are discrete and cover only a small portion of the surface, but they may be contiguous and cover the whole surface, Figs. 3, 5 and 6 (not shown). An image of an object is formed on the surface and is cyclically traversed by the helix of mirrors, which reflect light from successive elements to a light-sensitive cell 141 within the surface, or an image is formed in the plane of an aperture in front of the cell and is traversed over the aperture by the mirrors, or a light source is mounted within the surface and focused on the object as a spot of intense light, which is traversed over the object by the mirrors. A plurality of cells or light sources 141, 142, 143 within the surface may be associated with corresponding series 71, 72, 73 for the simultaneous transmission of a plurality of zones. The cells or light sources may be mounted outside the scanning-surface, which is made transparent, Fig. 6 (not shown). Specifications 230,576 and 328,616, [both in Class 40 (iii), Telegraphs, Electric], are referred to.
Patent GB-154692-A (GB)
Title: Improvements in and relating to moving brush gear for dynamo-electric machines
IPC: H02K23/18
Filed: 1919-08-30
Abstract: 154,692. Grafton, W. F., and Grafton Dynamos, Ltd. Aug. 30, 1919. Dynamos, regulating; brush-holders.-In brush-gear of the type described in Specification 16007/11, each brush is mounted on an independent rocker so connected together that each brush spindle acts or reacts on the other to hold it stationary. Fig. 1 shows spindles A, B mounted on rockers C, D connected by a bevel pinion E so that the rotation of the commutator F will hold the brushes e, f stationary. Fig. 2 shows a modification in which the rockers C, D are coupled by flexible belts G, G<1> and a loose pulley E.
Patent GB-1466745-A (GB)
Title: High-tension contactor
IPC: H01H33/14
Filed: 1974-05-14
Abstract: 1466745 Arc preventing; positive temperature coefficient resistors LICENTIA PATENT VERWALTUNGS GmbH 14 May 1974 [14 May 1973 30 Aug 1973 23 Jan 1974] 21340/74 Headings H1N and H1K A high tension contactor comprises a first group of contacts each bridged by a parallel capacitor and a second group of contacts bridged by at least one parallel resistor, the two groups of contacts being in series, and actuating means for actuating all the contacts simultaneously. In Fig. 3, one group of contacts, b, are bridged by both a parallel group of capacitors C and a further parallel group of resistors R, the other groups of contacts a and c being bridged by parallel capacitors only, there being a cut-out Tr in series with the resistors R, the switching being such that this cut-out Tr does not break current. Resistors for use in the contactor are described as being in the form of sheet metal discs punched out in meander form, Fig. 4, or spiral form. At the contact points 2, 3, which may be tin or silver plated, and in the webs they may have pressed out corrugations 5. The metal used for the discs has a positive temperature coefficient and may be aluminium with its surface anodized except at the contact points. A plurality of such discs are stacked on each other to form a resistor of the value required, the individual discs being separated from each other except at their contact points by layers of an insulating material resistant to high temperatures, the whole stack being enclosed in a hollow cylindrical insulator, Fig. 6, not shown. The hollow insulator may be filled with sulphur hexafluoride, or compressed air under the control of a bi-metallic strip operated valve may be blown through it.
Patent GB-810190-A (GB)
Title: Discharge nozzles for jet propulsion systems
Inventor: CROSSE GEORGE WILLIAM
IPC: F02K1/30
Filed: 1955-07-22
Abstract: 810,190. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. July 20, 1956 [July 22, 1955], No. 21358/55. Class 110 (3). [Also in Group XXIX] A jet propulsion nozzle has a fluid-retaining wall defining a convergent-divergent flow path comprising a first nozzle portion which converges to a nozzle throat, a wholly divergent outlet portion which is movable along the axis of the nozzle between a rearward position in which the upstream edge of the outlet portion lies near to but outwardly stepped from the downstream edge of the first nozzle portion to provide an annular fenestration through which fluid may enter the jet flow path, and a forward position in which the fluid is prevented from entering the nozzle. The propelling nozzle shown comprises an entry portion 6 and an outlet portion 7. The internal diameter of the inlet end 8 of the portion 7 is larger than that of the adjacent convergent end 9 of the portion 6. In one operative position, the inlet 8 is spaced downstream of the end 9 to form a fenestration 10 in the fluid retaining wall of the nozzle facing partly upstream of the direction of flow through the nozzle. The portion 7 has a sleeve 12 which may slide in or over a fixed sleeve 11 attached to the portion 6. The portion 7 may be moved axially by jacks 14 from the position shown in which the fenestration 10 is open to another position in which the fenestration 10 is closed in which the inlet end 8 of the portion 7 engages a seat 13 on the portion 6. The sleeve 11 has a series of apertures 17, through which fluid outside the nozzle may flow to the fenestration 10. The jacks 14 are controlled by a servomotor 18 actuated by a pressure-responsive device 19 which responds to a comparison of the fluid pressures at the inlet and outlet of the nozzle. In a modification the device 19 may be replaced by a Machmeter. Means may also be provided as shown, Fig. 5, to vary also the throat area of the nozzle. A wall 47 is provided to form a chamber 48 connected by a circumferential slot 51 or series of apertures to the inteor of their nozzle. Pressurized fluid is supplied to the chamber 48 through conduits 49 controlled by valves 50. In another modification, a variable area nozzle of the caliper type is embodied in the throat of the nozzle. Specification 810,189 is referred to.
Patent GB-713343-A (GB)
Title: Improvements in or relating to electric generators
Inventor: WORSTER NORMAN GEORGE
IPC: H02K3/493
Filed: 1951-09-11
Abstract: An alloy having a falling permeability with rising temperature for use in dynamo-electric machines (see Group XXXV) is composed of 70 per cent. nickel and 30 per cent. copper.
Patent GB-316008-A (GB)
Title: Improvements in fastening devices for flat articles
IPC: B42F21/08
Filed: 1928-07-24
Abstract: 316,008. Fuery, G. T., (Hinz Fabrik Ges.). July 24, 1928. Index tabs.-Clips for use as index tabs or for other flat articles consist of a plate-like main 'body provided with gapping members or limbs alternately offset in opposite directions and respectively provided with prongs which point in a direction opposite to that in which the limbs are offset. The clips are adapted for use with index cards of the kind provided with a line of spaced apertures parallel to one edge to receive the prongs of clips disposed anywhere along them. Figs. 2 and 4 show a clip with a body 111 formed with a central limb 114 offset oppositely to two end limbs 113, 115, the arrangement being such that the limbs can grip the edge of an index card 112, and the prong 117 on the end of the limb 114 extends through the apertures 120 in a direction opposite to that of prongs 116, 118 on the other two limbs. In a modification, Fig. 4, a. clip 125 is formed with two limbs 126, 127 oppositely offset and respectively provided with prongs 128, 129 which extend through a common aperture, the limb 127 being slightly longer than limb 126 so that it surrounds one side of it and the prong 128 is disposed above prong 129. The oppositely offset limbs may be formed with straight edges provided with teeth or prongs, as shown in Fig. 5, and, to prevent the teeth from being disengaged from a card &c. due to the latter becoming corrugated in a direction at right-angles to the clip, the slits 43, 44 between the limbs 40-42 may be formed obliquely, so that the limbs are bent with the card. For use in attaching articles together the clips may be provided with alternately offset limbs along two opposite edges, and may be formed in two halves 131, 132, Fig. 8, which are hinged or articulated together. The clips may be formed from single strips or pieces of metal in which the limbs are cut and offset, or two pieces formed with pronged limbs may be riveted or secured together in hnown manner.
Patent GB-358944-A (GB)
Title: Improvements relating to electric contact devices
IPC: H01R11/14
Filed: 1930-07-15
Abstract: 358,944. Fusible cut-outs and couplings. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, LESLIE, R. C., Burford, Worsley, Manchester, and TRENCHAM, H., Oakthorpe, King's End, Ruislip, Middlesex. July 15, 1930, No. 21440. [Class 38 (i).] A combined clip-on fuse and connector suitable for connecting small outdoor transformers to transmission lines comprises a metallic body 10 as shown in Fig. 1, which hooks over the transmission line 15. A socket 18 having a projecting pin 19 is supported by and insulated from the body 10. The fuse element 12 is fixed at one end by a cap 22 and passes through an insulating liner 21 to one arm of a bellcrank lever 24, the other arm of which hooks on to the pin 19. The bell-crank lever is pivoted to a socket 13 which carries the transformer connecting tail and is also provided with a projection 29 as shown in Fig. 2 to fit into an operating pole which may also engage with an eye portion 30 to pull the connector into firm engagement with the conductor 15. A spring 27 may be employed to accelerate detachment of the socket 13 from the socket 18 on blowing of the fuse 12. As shown in Fig. 3, the socket 13 is supported by an insulating plate 31 pivoted at one end 32 and held by the fuse element 12. Blowing of the fuse 12 results in the plate 31 falling out of engagement with the body 10. The hook portion 14 as shown in Fig. 4 is curved to make firm contact with the transmission line. Figs. 5 and 6 (not shown), illustrate an adaptation of the clip-on connector described in Specification 359,079.
Patent GB-1298940-A (GB)
Title: Improvements in or relating to ion sources
Inventor: ELLIOTT RICHARD MARTIN
IPC: H01J49/14
Filed: 1969-04-28
Abstract: 1298940 Ion sources ASSOCIATED ELECTRICAL INDUSTRIES Ltd 28 April 1970 [28 April 1969] 21462/69 Heading H1D An ion source comprises an ion chamber 10 in which material is ionized by means other than field ionization (e.g. by ultra-violet or other radiation, an electron beam, or as shown a thermionic filament 26), and the ions so formed are subjected to an electric field, produced by a charged tip, blade 22, wire or other sharp edge or point, and oriented to expel ions from the chamber.  The chamber 10 is closed by an ion exit plate 12, and beam centring plates 14 and 15 and an ion source slit 16 are arranged along the beam path. The blade 22 extends between ion repeller plates 18 and 19. The source is mounted within an evacuated housing (not shown). A magnetic field 28 is applied along the direction of the filament 26. Alternatively U.V. or other radiation may be beamed into the chamber through parts 24 and/or a beam of electrons may be projected through the chamber in a direction perpendicular to the plane of the drawing. In alternative embodiments (Figs. 2 and 3, not shown), the plates 18 and 19 are omitted and electrons are projected into the chamber either through a port in a side wall or through the slit in the plate 12 from an external filament. The field produced by the charged tip &c. may or may not be above the strength required to produce ionization.
Patent GB-1491795-A (GB)
Title: Preparation of moulding sand
IPC: B22C5/04
Filed: 1975-05-20
Abstract: 1491795 Reclaiming foundry sand CARL KURT WALTHER GmbH & CO KG 20 May 1975 [14 June 1974] 21464/75 Heading B3G [Also in Division B2] A vibratory mill for reclaiming foundry sand by autogenous milling comprises two unbalanced shafts 5, Fig. 3, connected to a chamber 4. The drive mechanism has variable speed control 3 and the shafts 5 are synchronized by a toothed V-belt Z, Fig. 3, extending around pulleys S. The mill is loaded via a funnel 32, Fig. 1, and discharged via a screen 34. This screen is opened for removal of foreign material remaining in the mill chamber 4. A second embodiment has a central feed funnel 17 and a screen 16 above a discharge opening 13, Fig. 2. Foreign bodies are removed after opening a flap 21 by operation of a pistoncylinder mechanism 25, 26.
Patent GB-682018-A (GB)
Title: Improvements in and relating to the manufacture of wax candles
Inventor: KEOGH DANIEL JAMES
IPC: C11C5/02
Filed: 1950-05-18
Abstract: <PICT:0682018/III/1> <PICT:0682018/III/2> Apparatus for making candles from a continuous rod 53 of wax-covered wick comprises feeding means 60 for supporting the rod and alternately advancing it through the length of a candle and holding it stationary, a rotating tipping cutter 61 coaxial with the rod and mounted so as to be capable of axial movement towards and away from the free end of the rod and having one or more blades so shaped or disposed as to uncover a short length of wick and cut the tip of the wax to the desired shape, reciprocating means 64-65 for moving the cutter towards and away from the rod, and a parting cutter 66 synchronized with the reciprocating means for cutting off the desired length of rod when the cutter has completed its tipping operation and the rod is held stationary.  In the form shown, the feeding means comprises four pairs of rollers 60 on shafts 70 driven through gear wheels 72, idler pinions 73, and a driving pinion 74 on a rotatably mounted shaft 75. An independently rotated hollow shaft 76 is mounted on shaft 75 and carries a bevel gear 77 meshing with a bevel gear 78 on the shaft 79 of a motor.  An arm 80 is fixed on the shaft 76 and carries a pivoted pawl 81 with a cam roller 82 spring-urged into contact with a fixed cam 83.  The pawl 81 co-operates with a ratchet 84 on the shaft 75. The bevel gear 77, hollow shaft 76 and arm 80 are rotated in the clockwise direction and when the roller 82 is in contact with the depressions of the cam 83 the pawl 81 engages the ratchet 84 and turns the shaft 75 and hence the gear 74 and rollers 60.  When the roller 82 rides on a projecting arc of the cam 83, the pawl 81 is disengaged from the ratchet 84 and the shaft 75 &c. are no longer driven.  The rollers 60 are thus intermittently driven.  A cam operated arm 85 engages a stud 90 on the face of the gear wheel 74 to hold the roller 60 stationary during the periods when they are not driven.  The wax rod 53 advanced intermittently by the rollers 60 passes through a guide tube 91, and then under rods 92 above a shoot 69.  The tipping cutter 61 is fixed on the shaft of a motor 62 which is slidably mounted on guide rods 96.  The tipping cutter blades are fixed on the tips of four prongs 99, parallel to the axis of the rod except for their tips which latter are bent so that the blades make a conical cut on the rod.  The tipping cutter is supported on the forked ends 104 of an arm 65 mounted on a fixed pivot 105 and held in contact with a cam 64 by a spring 106.  The cam is rotated by the driving shaft 79 through a gear 113.  The parting cutter comprises a knife blade 66 fixed on the hub of a chain wheel 109 driven by a chain 111 from the driving shaft 79.  The severed candle is pushed down the shoot 69 by a resilient arm 68.  The apparatus may be used in conjunction with the extrusion apparatus for making a continuous rod of wax-covered wick described in Specification 682,019.
Patent GB-245485-A (GB)
Title: Improvements in methods of moulding or shaping fabrics
IPC: D06M13/188
Filed: 1924-09-11
Abstract: 245,485. White, A. E., (Heusen, J. M. van.). Sept 11, 1924. Making.-Woven or knitted fabrics containing cellulosic materials, for example for making hat shapes and boot linings, are moulded or shaped by treating them with sulphuric acid of from 70-80 per cent strength, washing out the acid, and drying them while wet on a form or in a mould, heat and pressure being applied in some instances. The invention is stated to be applicable specially to material comprising a number of thicknesses of knitted cotton fabric. The fabric may be woven or made approximately to the shape of the finished product. The material may be waterproofed by treatment with a solution of aluminium acetate followed by a strong soap bath before or after being shaped by the acid treatment.
Patent GB-376516-A (GB)
Title: Improvements in rotary boilers in which whale, fish or the like are treated in connection with the production therefrom of oil or other products
IPC: C11B1/12
Filed: 1931-07-28
Abstract: 376,516. Digesters. AKTIESELSKAPET KVAERNER BRUG, 65, Enebakkveien, Oslo, Norway. July 28, 1931, No. 21551. Convention date, July 29, 1930. [Class 64 (i).] Rotary digesters in which whale, fish, &c. are treated for obtaining oil and other products and comprising a drum 2 rotating in an outer digester casing 1 are driven by spur wheels 6, 7, the primary wheel being arranged on the shaft 8 of the wheel 9 of a worm gear and the drum shaft 3, shaft 8 and the worm 10 being mounted in the same bracket or casing 13 which has a flange 14 or the like for securing it to the end wall of the outer casing. A small axial displacement of the drum shaft and its wheel 6 is thus permitted.