baber/WOPTO huggingface dataset:
Patent GB-1023540-A (GB)
Title: Process for the production of cis-trans-cyclododecadiene-(1,3)
IPC: C07C1/213
Filed: 1965-02-05
Abstract: Cis, trans-cyclododecadiene-1,3 is obtained by the thermal decomposition of a diester of cyclododecan-1,2-dio with a C1-C12 aliphatic mono-carboxylic acid or the intermediate mono-olefinic mono-ester.  The ester may be formed in situ from the diol and the acid or its anhydride and the decomposition is effected at 0.01-760 torr and 300-650 DEG  C. in a packed tube.  Mono-ester is also formed and this may also be pyrolysed to the diene.ALSO:An ester of cyclododec-2-en-1-ol is obtained as an intermediate by-product in the thermal decomposition of a diester of cyclododecan-1,2-diol with a C1-C12 monocarboxylic aliphatic acid to form cyclododecadiene.  The diester may be formed in situ from the diol and the acid or its anhydride and the decomposition is effected at 0.01-760 torr and 300-650 DEG  C.
Patent GB-565755-A (GB)
Title: Improvements in the knitting elements of knitting machinery
IPC: D04B35/02
Filed: 1943-03-30
Abstract: 565,755. Needles for knitting- machines. F.N.F., Ltd., BOLDEN, G. L., and PEEL, R. March 30, 1943, No. 5114. [Class 74 (ii)] [Also in Group XXII] A machine knitting needle having a tubular shank has the whole of one end 4 swaged to form a pin bent to the shape of a hook, the pin being offset to one side of the shank 1 and an opening 6 being formed in the other side for the passage of a tongue 2 which alternately overlaps the needle hook and is withdrawn into the shank. The needle may be made of carbon steel, and the tongue may be of stainless steel or of phosphor bronze. The swaging may be effected in stages with intermediate annealing. After the hook has been bent to shape, the needle may be hardened, tempered, ground and polished. The swaging operation may be carried out in a rotary swaging machine. Specifications 490,755 and 516,025 are referred to.
Patent GB-805307-A (GB)
Title: Electric time switching device
IPC: G04C23/16
Filed: 1956-02-20
Abstract: 805,307. Time switches. BUSCH-JAEGER DURENER METALLWERKE A.G. Feb. 20, 1956 [Feb. 21, 1955], No. 5227/56. Addition to 791,636. Class 38 (5). The invention of the parent Specification is modified by the provision of a cam having two parts 1, 3 which are relatively adjustable by means of two knobs (Fig. 1, not shown). The cam parts normally rotate together and are held against accidental displacement by an arresting means or braking device.
Patent GB-1215925-A (GB)
Title: Fuel gas/oxygen burner
Inventor: ARNOLD GERALD DESMOND
IPC: F23D14/78
Filed: 1967-02-03
Abstract: 1,215,925. Gas burners. GAS COUNCIL. 5 Feb., 1968 [3 Feb., 1967], No. 5256/67. Heading F4T. A gas burner comprises fuel gas and oxygen or oxygen enriched air ducts 10, 11 respectively discharging through passages 15, 16 and 14, the outlet portion of passages 14 being divergent at 17, such that in use the stream of oxygen or oxygen enriched air exciting therefrom separates from the boundary surface of the divergence and draws fuel gas towards the base of the divergence to prevent flame lift-off. The divergences may be straight-sided, frusto-conical or convex sided, with a preferred included angle of 36 degrees. The axial length of the divergence is preferably equal to the diameter of the passage 14, and the maximum cross-sectional area not more than three times the cross-sectional area of the passage. Tubes 5, 8, 12 and 13 provided flow and return water cooling passages.
Patent GB-556924-A (GB)
Title: Improvements relating to the manufacture of inner tubes for pneumatic tyres
IPC: B29D23/24
Filed: 1942-04-21
Abstract: 556,924. Moulding tyre tubes &c. WING- FOOT CORPORATION. April 21, 1942, No. 5337. Convention date, Dec. 20, 1941. [Class 87 (ii)] In order to mount an unvulcanized inner tube on a ring 12 which is then to be seated, with the inner tube thereon, in a vulcanizing mould, the following steps are performed : (1) The tube 10 is positioned around the concave ring 12, Fig. 2, the valve stem 16 being received within a valve-block 38 brazed or otherwise secured to the ring. (2) The tube is partly inflated. (3) A vulcanized rubber band 14 is snapped over the outer periphery of the tube, the inner periphery of the tube being thus forced into firm contact with the concave outer periphery of the ring 12, Fig. 4. A circumferential line on the tube facilitates correct alignment. Step (3) may be performed before step (2). (4) The tube is allowed to take a " set " for a short time. (5) The band 14 is removed, and the tube is inflated to a predetermined size. This inflation facilitates subsequent introduction of the tube into the mould cavity without buckling or pinching. (6) The ring and tube are inserted into the mould, Fig. 6, where the tube is vulcanized. Access to the valve stem 16 is by way of an opening 42 in the mould parts. Spring- pressed plungers 46 strip the ring 12 from the upper mould part when the mould is opened. The invention is described in connection with the plural-chambered tubes described in Specification 456,294, [Group XXXIV]. Specification 464,681 is referred to.
Patent GB-637303-A (GB)
Title: Planing-machine head
IPC: B23D13/00
Filed: 1947-02-26
Abstract: 637,303. Planing-machine tool-holders. REUSENS, A. Feb. 26, 1947, No. 5530. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 20, 1947.] [Class 83 (iii)] A planing-head with a double-edged planing tool cutting on both the forward and return strokes has a tool-holder 4 rotatable in an intermediate member 3 about an axis 29 at right-angles to the axis of the tool, and the intermediate member is rotatable about its own axis in a spherical member 2 which is pivotable in a support 1 and has an integral hollow pin 22 engaging an eccentric bore in at least one sleeve 8, the sleeve being rotatable in the support and the bore having an axis which intersects that of the sleeve so that, on rotation of the sleeve, the spherical member is pivoted and the tool is swung laterally in relation to its direction of cut. The hollow pin 22 is journalled in the eccentric bore of an inner sleeve 8 which is itself journalled in an eccentric bore in an outer sleeve 9, and a pinion 25 slidably journalled on a rod 34 secured to the outer sleeve meshes with external teeth on the inner sleeve 8 and with internal teeth on a worm-wheel 33 which may be secured to or released from the outer sleeve 9. For accurate initial adjustment of the position of the hollow pin 22, the wheel 23 is disengaged from the outer sleeve 9 and the pinion 25 is placed in the position shown in Fig. 1, so that, on rotation of the wheel 23 only the inner disc is turned and the hollow pin describes a conical surface. By fixing the wheel 23 to the outer sleeve 9 and sliding the pinion 25 along the rod 34 so that its projections 27 engage with projections 31 on the outer sleeve, both discs 8 and 9 may be turned together so that the hollow pin describes a different conical surface. At the end of each stroke of the planing-head, the tool is rotated round the axis of the hollow pin by a lever 35 operated by an electromagnet 7. The other initial adjustments are made by rotating the tool on its own axis by means of a shaft 12 having a pinion 13 engaging a toothed quadrant 11 which has a projection 14 engaging a notch 15 in the intermediate member 3 and by rotating it on the axis 29 by means of a shaft 20 having a pinion 17 connected to worm teeth on the holder 4 by a gear train 16, 18 and 19.
Patent GB-577758-A (GB)
Title: Improvements in or relating to apparatus for transmitting or receiving frequency-modulated oscillations
IPC: H03J7/04
Filed: 1944-03-25
Abstract: 577,758. Automatic tuning correction; frequency modulation. WHITE, E. L. C. March 25, 1944, No. 5541. [Classes 40 (iii) and .40 (v)] [Also in Group XXXV] In a frequency-modulated television transmission system, the carrier frequency at the transmitter or the tuning of the receiver is stabilized by a discriminator circuit which is switched into circuit intermittently by the synchronizing signals or by other signals having a datum value. The Figure shows a receiving and relaying station in which FM carrier received on an aerial 13 is reduced in frequency in a mixer 14 supplied from a local oscillator 15, the resulting intermediate frequency being fed to a detector 17 and picture reproducer 19. The discriminator 18 is fed from the I.F. amplifier 16 and its output controls the frequency of the local oscillator 15. It is brought into action intermittently by the synchronizing signals which are separated from the picture signals and inverted by the device 20, so that the frequency correction is effected only when the frequency should be at a datum value. For re-transmission, the I.F. carrier from the amplifier 16 is mixed at 23 with oscillations from a local source 24, and the new carrier is selected by a filter 25 and passes through an amplifier 26 to the aerial 28. The new carrier also passes to a discriminator 27 which regulates the frequency of the local oscillator 24 and is itself rendered intermittently operative by synchronizing signals from the limiting and reversing device 20. The signals of datum value may occur just before or just after each synchronizing signal, suitable delay networks being interposed in the feed to the discriminator. In a television transmitter, the discriminator output may act directly on the carrier oscillator (Fig. 1, not shown). For ultra-short waves, the discriminator may be of the kind described in Specification 577,775. Specification 539,198 also is referred to.
Patent GB-510554-A (GB)
Title: Improvements in building construction
IPC: E04B1/26
Filed: 1938-02-22
Abstract: 510,554. Timber buildings. KERR, W. H. Feb. 22, 1938, No. 5548. [Class 20 (i)] The timber carcase of a building comprises sleeper members 1, vertical posts 4 interfitting with, and fastened to, the sleeper members 1, rectangular frame units 5 fixed between the posts, roof trusses 6, each of which spans a pair of opposite posts and is arranged with its heels interfitted with, and fastened to, the upper ends of the posts, and crossed-type bracing 12 disposed between adjacent roof trusses. The floor comprises joists 3 disposed transversely across a plurality of parallel timber sleepers 1, each of which is supported by brick and/or concrete piers 2. The frame units 5, which are of timber, are fixed in position between the posts 4 so as to be flush with the inside edges of the posts and are secured at the bottom ends to the floor joists 3. The bottom ends of the posts 4 are notched to fit over the sleepers 1 and are rigidly secured in position by bolts, being preferably also fixed to the nearest convenient floor joist 3. The heels of the roof trusses 6 are cut away to fit over the bevelled upper ends of the posts 4 and V-shaped metal brackets 11 are fixed at the joists between the trusses and posts. The frame units 5 extend above the posts and are fixed to the trusses by bolts or other means. The trusses 6 are crossed-braced as shown at 7 and provided with posts 8. The cross-bracing members 12 between adjacent trusses 6 are fixed flush with the top of the rafter at the ridge and bottom, and these members are cross-halved and bolted together at their crossing points. A roof covering 15 is applied to purlins 14 secured to the bracing 12. The wall surface 19, which is flxed across the inside of the frame units 5, may be of the kind described in Specification 509,267.
Patent GB-717830-A (GB)
Title: An improved a.c. motor or generator
IPC: H02K57/00
Filed: 1951-03-08
Abstract: 717,830. Dynamo-electric machines. BROOKE, B. N. Feb. 18, 1952 [March 8, 1951], No. 5581/51. Class 35 The rotary armature of an A.C. motor or generator comprises a pair of spaced coaxial magnetic discs A1, A2 carrying coils which embrace both discs and have radial portions 1 lying in slots (not shown) in the disc faces. The poles 2 are axially disposed and are excited to alternate polarities round the periphery but of like polarities on either side of the discs. The rotor windings may be distributed in slots covering the whole of the disc faces and it is stated that the machine may be, connected so that A.C. passes through the armature and field windings.
Patent GB-879486-A (GB)
Title: Improvements in or relating to cartons
Inventor: ALEXANDER HARRY
IPC: B65D5/36
Filed: 1959-02-18
Abstract: 879,486. Cartons. ALEXANDER & CO. Ltd., S. M. May 11, 1960 [Feb. 18, 1959], No. 5585/59. Class 18. A carton comprises four panels, B, C, D, E hinged together along their longitudinal edges and movable from a flat collapsed-tubular condition to a triangular prism erected-tubular condition by movement apart of the panels E, D until they lie in the same plane and constitute a first prism wall and by opening movement of the panels B, C to constitute two other prism walls, a flat, flexible bag 4 of approximately the same width as the collapsed carton being secured therein. After the carton blank has been folded to tubular state the flap c<SP>3</SP> is secured to an end flap. The bag 4 of polyvinyl chloride or polyethylene is adhered to the inside surface of the carton over its whole periphery and to end flaps b2, c<SP>2</SP>, d2, e<SP>2</SP>. To erect the carton opposed inward forces are applied to the edges 2, 3, the end flaps b<SP>2</SP>, c<SP>2</SP> begin to move into a position in which they lie across the end of the tube and the separation of edges 8, 9 Fig. 6, (not shown), causes the bag to be drawn inwardly as at 10, Fig. 5. On completion of the erection the end flaps d2, e<SP>2</SP> have a triangular double-walled tongue 11 of the bag material secured thereto. The flaps d2, e<SP>2</SP> are secured to the end flaps b2, c<SP>2</SP>. To open the carton the flaps d<SP>2</SP>, e<SP>2</SP> and the tongue 11 may be cut across at 12 to provide a pouring spout for the contents. The liner bag may be secured over the entire internal surface of the panels B, C, D, E and of the flaps b2, c<SP>2</SP>, d2, e<SP>2</SP>, or may pass only partially up the carton. Alternatively the flexible material may be limited to the part of the bag lying below the lower end of the panels B, C, D, E.
Patent GB-802442-A (GB)
Title: Faller bar and method of making same
Inventor: SPISAK ANDREW ARTHUR
IPC: D01H5/14
Filed: 1956-02-23
Abstract: 802.442. Faller bars. WARNER & SWASEY CO. Feb. 23. 1956, No. 5611/56. Class 120(1) A faller bar has a metal body provided with hardened end portions and an intermediate portion 11 having a longitudinally extending groove, in which is a pin strip insert having a moulded plastic base 15 in which the butts of the pins 16 are embedded and a hardened non-shrinking cement 17 filling the groove and the interstices between the base and the walls of the groove, and extending across the top of the base and hermetically sealing it in the groove. The insert is preferably made by applying a strip of thermoseting plastic to each side of the butts of the pins 16 and closing the ends by U- shaped strips of the plastic, and then setting the plastic by heat and pressure. Before applying the plastic strips both they and the pin butts may be coated with a solution, for example a resin solution.
Patent GB-525415-A (GB)
Title: Improvements in or relating to servo brake mechanism for vehicles
IPC: B60T13/06
Filed: 1939-02-20
Abstract: 525,415. Brake-operating mechanism. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. Feb. 20, 1939, No. 5626. [Class 103 (i)] In servo-brake mechanism for vehicles of the kind comprising a torque-applying unit of which one part rotates continuously with a member of the power transmission while the other part is driven by frictional engagement with the first part to effect the operation of the brakes, the driven part carries or is connected to a face cam with which engages a follower on a brake-operating rod. The torque-applying unit comprises friction discs 10 splined to the end 12 of a shaft 13 driven from the gear-box and alternating with friction discs 14 through which and an end-cap 21 pass rods 15 secured to a member 16 having a cylindrical part 26 formed at the end 27 as a face cam. The piston rod 35 of a master-cylinder 34 connected to brake-operating cylinders has a roller 36 which rides on the cam face 27 and the roller pivot passes through a guide arm. 37 pivoted at 38. Pressure is applied to the discs 10, 14 by the piston rod 22 of a hydraulic cylinder 23 connected to a pedal-operated master-cylinder. When by the turning of the member 16 the rod 35 is operated to apply the brakes, movement of a piston 41 to increase the volume of a cylinder 42 connected to the cylinder 23 is permitted by tne movement of the arm 37 so that the pressure on the discs 10, 14 tends to decrease and with a given depression of the pedal a state of balance is set up in the manner described in Specification 477,173, thus ensuring control of the brakes by the operator. The piston 41 is returned by a spring 43. The return of the member 16 may be effected either by gravity if as shown the deepest part of the cam is arranged to be normally at the lowest point or by a chain which normally extends radially from a part of the member 16 under the influence of a spiral. spring connected to a member rotatable about the axis of the unit and to which the other end of the chain is attached. The reaction on the cam member 26 is taken by a roller 31 on a member 28 adjustable in the casing 18 by a screw 32 thus preventing the application of side loads to the bearings of the unit. The rod 35 may instead operate the brakes through mechanical connections.
Patent GB-1413017-A (GB)
Title: Process for the production of photographic images
IPC: G03C5/60
Filed: 1973-02-05
Abstract: 1413017 Photographic processes AGFAGEVAERT AG 5 Feb 1973 [5 Feb 1972] 5628/73 Heading G2C Visible images are produced by (1) imagewise exposure of a material containing a layer of a mixture of cellulose sulphate and gelatine as binder and a light-sensitive compound which on exposure produces a compound which is capable of decomposing a substance containing a peroxo group, (2) treatment of the exposed layer with such a substance and (3) either physically through formation of residues or chemically by carrying out (2) in the presence of colour-forming reactants. In the examples, silver halide is used as the lightsensitive compound and the material may contain a developer in a gelatine layer beneath the silver halide emulsion layer. The weak silver image obtained on exposure and development is intensified either (a) by treatment with H 2 O 2  or H 2 O 2 /urea addition product whilst heating and then applying water vapour to form a vesicular image or (b) by treatment with H 2 O 2 , heating and then treating with N-ethyl-N-hydroxyethyl-toluene- 2,5-dianium-sulphate and pyrocatechol to produce a coloured image.
Patent GB-722726-A (GB)
Title: Improvements relating to pulleys
IPC: F16H55/49
Filed: 1953-02-24
Abstract: 722,726. Belt pulleys. TROJAN, Ltd., and WILLIAMS, A. Feb. 24, 1953 [March 4, 1952], No. 5682/52. Class 80 (1). A V-belt pulley comprises a rim of flexible material of a V-cross section which is bent round into a circle and secured to a wheel or disc 37. The V-strip forming the rim is perforated along its length with holes or notches 11 and has slits 18 extending from its edges between the holes 11. A flange 28 on one side beyond the V-groove is provided with holes for securing screws 30.
Patent GB-398412-A (GB)
Title: Improvements in and relating to hydraulic control systems
IPC: G05D13/00
Filed: 1933-02-24
Abstract: 398,412. Speed governors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Caughey, R. J. ; 910, Livingston Avenue, Schenectady, New York, U.S.A.) Feb. 24, 1933, No. 5719. Convention date, Feb. 25, 1932. [Class 57.] A control system, shown as a speed governor controlling a valve, but may be responsive to load, frequency, voltage, &c., comprises a control valve 13 controlling fluid to a power cylinder 6. The follow-up mechanism comprises a spring-loaded piston 28 connected to the floating lever 21, the cylinder 27 being supplied with fluid through an adjustable valve 31a and the amount of leak from the pipe 33 being controlled by a valve 36 actuated by the rod 4. Specification 354,458 is referred to.
Patent GB-825390-A (GB)
Title: Improvements relating to liquid level indicator apparatus
IPC: G01F23/16
Filed: 1958-02-21
Abstract: 825,390. Indicating liquid levels. ANDREWS, J. H. Feb. 21, 1958, No. 5730/58. Class 123(1) A liquid level indicator especially for the oil sump of a motor vehicle which provides a check of liquid level when the machinery with which it is associated is at rest comprises an indicator 1 which is connected by a tube 2 to a heat sensitive device 3 itself connected by a tube 4 to a rigid tube 5 dipping into, for example, an oil sump 6. The indicator comprises a sight chamber 8 of transparent material closed at the top by a cap 7 to which the tube 2 is connected and having a bottom tube 11 which reaches to near the bottom of a reservoir 9 vented to atmosphere at 10 and containing a coloured indicator liquid. The device is an air chamber which is disposed adjacent an engine part, for example the silencer casing, which is hot whilst the engine is running and which cools rapidly when the engine stops. The tube 5 has side openings 14 at the minimum desired oil level 15 and can be provided with an external scale so that it may be used as a dipstick. In operation when the engine is switched off, the chamber 3 cools and if the holes 14 are immersed the indicator liquid is drawn up into the sight chamber in which it remains as an indication of satisfactory oil level until the engine is restarted. If the liquid does not appear in the sight glass the sump must be replenished. Specification 791,242 is referred to.