baber/WOPTO huggingface dataset:
Patent GB-1072142-A (GB)
Title: Vibratory finishing apparatus
IPC: A61M21/00
Filed: 1965-01-25
Abstract: 1,072,142. Vibratory finishing. PANGBORN CORPORATION. Jan. 25, 1965 [Jan. 27, 1964], No. 3127/65. Heading B3D. Vibratory finishing apparatus comprises a base support, a vibratory tub 3, means connecting to the tub with the base support in a fixed upright position, means connected with the base support for vibrating the tub, a drain spout 17 at one end of the tub, a discharge port 21 in the lower portion of one wall of the tub and a door 19 sealing off the port. An open top tub 3 has a detachable cover 7. The drain spout 17 may be of the type which is rotatable to open and close it, or other closure means may be provided. The wall of the tub 3 is outwardly flanged around the port 21, the door 19 is outwardly flanged, and a rubber 0-ring 24 is located between the flanges. The tub has a protective liner 23 of hard metal, and the door 19 has a similar liner 23<SP>1</SP>. A shoot 35 is provided around the door 19. Lower extensions 15 of the end panels of the tub are fixed to a platform 13. This is supported at its four corners by air cushions 40 supported by pedestals 42 connected to longitudinal rails 44 connected by cross struts; the air pressure in the cushions is adjustable. The rails 44 are supported by air cushions at each end of the rails and housed in telescoping units 72, 74, the air pressure in the cushions being adjustable. A shaft 54 mounted in bearing supports secured to the underside of platform 13 carries an eccentric weight 56 and is connected by a flexible coupling with a drive shaft. The latter is mounted in a bearing support 64 secured to the rails 44 and is driven by an electric motor 66 through a variable speed drive. At the end of a finishing operation using abrasive media and a liquid treating agent, the electric motor is stopped, the cover 7 removed and liquid discharged through the spout 17; the door 19 is then removed and the solid contents of the tub discharged into the shoot 35.
Patent GB-657794-A (GB)
Title: Improvements relating to wire tensioning apparatus
Inventor: TINDALE JOHN BASIL
IPC: E04G21/12
Filed: 1949-02-04
Abstract: 657,794. Reinforced concrete. MINISTER OF WORKS. Feb. 4, 1949. No. 3168. [Class 20(iv)] [Also in Group I] In a device for tensioning a number of concrete reinforcing wires simultaneously, tension is applied to a primary bridge member 4 at a point between its ends and thence from each end of the member 4 to a point between the ends of each of a pair of sub-bridge members 18, and from the ends of each member 18 to the individual wires. The bridge member 4 is pivotally connected at its centre to a bolt 1 and at each end pivotally supports a link 7 each of which is pivotally connected to the centre of one of the sub-bridge members 18. To each end of each sub-bridge member a wire gripper is pivotally connected. Each gripper has a spring-loaded serrated jaw 13 which may be locked in an open position. Tension applied to the bolt 1 by a hydraulic jack for example is applied equally to the individual wires held by the four grippers. For loading the wires in the jaws a pin is used to lock the bolt 1 to the bridge 4 and wedges are used to prevent movement of the sub-bridge members 18, The device is modified for use with three wires by arranging the sub-bridges parallel to the bridge 4, connecting the links 7 so that the outside arm of each sub-bridge is twice the length of the inside arm and joining the two inside arms to a common gripper. Unequal tensions in the individual wires may be applied by suitably pivoting the bridges and the device may be modified for tensioning more than four wires. Specification 642,360, is referred to.
Patent GB-575040-A (GB)
Title: Improvements in or relating to breaking-down machines for use in mining
IPC: E21C37/08
Filed: 1944-02-21
Abstract: 575,040. Breaking-down appliances. HAIR, C. E., and HAIR, R. T. Feb. 21, 1944, No. 3224. [Class 68 (i)] A breaking-down appliance for mines comprises a block having parallel cylinders containing pistons, and a hood fitting over the block and movable with the pistons during part of their travel, the hood having openings through which extensions of the pistons move independently during another portion of their travel. In Figs. 5 and 12, jack units A each comprise a block a with parallel cylinders B containing preferably telescopic pistons C, the blocks a having ears 2 whereby adjacent units may be pivotally connected by links D ; adjacent jack units are connected by hose E for the supply of actuating fluid. A hood G fits loosely over each block a and is movable with the outer parts 3 of the pistons C, while the inner parts 7 of the pistons may move through the hoods; each hood G has reduced end extensions g with slots 21 receiving the pivot pins 22 of the links D. In Fig. 15, the jack units A are pivotally connected by U- shaped links D<1> enclosing the hose-connections E.
Patent GB-469942-A (GB)
Title: Improvements in and relating to methods and apparatus for the removal of condensed particles
IPC: F25J3/08
Filed: 1936-02-03
Abstract: 469,942. Liquefying and separating gases. TRIGGS, W. W. (Gas Industries Co.) Feb. 3, 1936, No. 3239. [Class 8 (ii)] [Also in Group XIII] Air &c. to be liquefied and separated passes in series through valve 6 and interchangers 1, 2, to a rectifying column 3 from which the nitrogen or other product returns through interchangers 2<1>, 2 and normally through interchanger 1 in a downward direction in counter flow to the air, escaping through valve 14; when it is desired to remove rime deposited by the air from interchanger 1, the air is passed directly into interchanger 2, through valve 7, while the nitrogen &c. passes away partly in regulated amount through valve 12 and partly through valve 19 and heater 4 to the top of interchanger 1 and through the normal nitrogen path, melting deposited rime by heat contact and allowing the melted rime to drain off through a valve 15. The heat is then cut off and the nitrogen flow continued, or air is passed in through valve 6 cooling the interchanger 1. As a modification, the heated nitrogen may be caused to pass through the normal air passage of interchanger 1 in the reverse direction. The air from the interchanger 2 passes partly through interchanger 2<1> and partly through expansion motor 23 before entering the rectification column.
Patent GB-890624-A (GB)
Title: Improvements in or relating to centrifuges
Inventor: HARBOTT NORMAN RICHARD
IPC: B04B13/00
Filed: 1960-01-29
Abstract: 890,624. Centrifugal separators. MACHINE SHOP EQUIPMENT Ltd. Oct. 3, 1960 [Jan. 29, 1960], No. 3284/60. Class 23. A centrifuge driven by an electric motor and comprising a bowl 10 adapted to house any one of a range of centrifuge heads is provided with means which automatically control the speed of the motor in dependence on the particular head 11 used to ensure that no head is driven at a speed in excess of a predetermined maximum appropriate to that head. A rod 12 vertically mounted for angular movement about its axis has, at its upper end, a feeler arm 14 co-operating through a bush 16 with the head 11 and, at its lower end, arms adapted to operate micro switches housed in a casing 17 such that angular movement of the rod 12 due to a change of head 11 actuates one or more switches to vary the resistance or the frequency of the motor circuit and thereby the motor speed. The amount of angular movement of the rod 12 in either direction is limited by a stop member 18 engaging stop elements 19a, 19b. In an alternative arrangement the feeler arm may be replaced by a light ray which senses the type of head in use and controls resistance to vary the motor speed accordingly. The light ray may be either "light sensitive" or "colour differentiation" type, in the latter case the heads are treated to produce colour reactions. To prevent overspeeding of any head the electrical circuit incorporates centrifugally actuated switches one for each head and each of which is set to cut off the power supply to the motor should the speed exceed the maximum permissible for its associated head.
Patent GB-1500131-A (GB)
Title: High power transmitter circuits
IPC: H03F1/07
Filed: 1975-04-10
Abstract: 1500131 Transmitter valve amplifier H K ROBIN 10 April 1975 [24 Jan 1974] 03298/74 Heading H3W In a transmitter output stage, with valve 15 handling mean carrier power and valve 16 handling upward modulation peaks only, as in a Doherty circuit, the conventional tank circuit is eliminated, leaving a low "Q", harmonics being removed by a series of filters 18, 19, 20, 21 associated with each valve. The antenna 40 is then connected conductively to the HT, via the inductor 33 of quarter wave impedance inverting network 33, 34, 35 coupling the valves, and the resonant choke 38, thus eliminating the passage of fundamental and 2nd harmonic current through the HT smoothing capacitor when the tuning capacitor of the conventional tank circuit is taken respectively from the anode of valve 15 to ground (Fig. 1a, not shown) or to HT (Fig. 1b, not shown). Filter circuits are provided for 2nd and 3rd harmonics only, 4th and upward being by-passed by capacitors 34, 35. The filters comprise high L, low C series resonant circuits, but to reduce the coil sizes in 2nd harmonic filters 18, 20 (Figs. 3, 4, not shown) a capacitor 41, 42 across each coil may be added.
Patent GB-140169-A (GB)
Title: Improvements in or relating to eyeglasses
IPC: G02C7/06
Filed: 1919-02-11
Abstract: 140,169. Jones, F. Feb. 11, 1919. No Patent granted (Sealing fee not paid). Spectacle lenses. - In bi-focal lenses, the reading-lens l<1> is mounted in or on an egg-shaped or oblong plain glass or weaker lens o with its longer axis vertical, so that a substantial portion of the latter is left above and below the reading- lens for direct and domnward vision.
Patent GB-550390-A (GB)
Title: Improvements relating to fluid-operated motors
IPC: B60S1/06
Filed: 1941-03-13
Abstract: 550,390. Fluid-operated motors. ACROTORQUE CO. March 13, 1941, No. 3455. Convention date, Jan. 15, 1941. Addition to 545,916. [Class 69 (ii)] In a motor of the kind in which the valves are operated by a spring toggle actuated by the piston at each end of its stroke, as in the parent Specification, means are provided to lock the valve mechanism against movement except at the ends of the piston stroke ; the pressure liquid inlet is furnished with a constriction to prevent racing. The motor comprises a reciprocating piston 19, Fig. 1, operating an arm 42 rocking about a shaft 41 and connected at one end to a spring link 46 forming one member of a toggle the other member 44 of which is furnished with teeth 50 adapted to engage a hole 53 in a spring 51. The member is also provided with flats engaging tappets 58 operating admission and exhaust valves 28, 29. The spring 51 engages one or other of the teeth 50 except in the position shown at the ends of the piston stroke when it is engaged by a cam member 56 formed on the arm 42. The inlet pipe 11, Fig. 5, is provided with a constriction 13 whereby, on release of the load on the motor, racing is prevented.
Patent GB-524647-A (GB)
Title: Improvements in or relating to the production of plywood
IPC: B27D1/04
Filed: 1939-02-02
Abstract: 524,647. Plywood. NEVIN, J. V. Feb. 2, 1939, No. 3549. Convention date, April 2, 1938. [Class 145 (ii)] In a method of normalizing hot pressed plywood in which the panels, while still in a heated condition from the hot pressing operation, are brought into a humid, heated atmosphere in which they absorb an appreciable amount of moisture, the panels are cooled before removing them from the humid atmosphere to such a temperature and at such a slow rate that checks or blisters do not form. The time that the panels must remain in the kiln depends upon the number of plies and the thickness. Examples of temperature, moisture content &c. are given.
Patent GB-1485141-A (GB)
Title: Cable glands
IPC: H02G15/04
Filed: 1975-01-27
Abstract: 1485141 Cable glands BICC Ltd 27 Jan 1975 [25 Jan 1974 11 Feb 1974] 03694/74 and 06093/74 Heading H2E A cable gland terminating the armour sheath of a cable and insulating it from an enclosure 8 comprises an annular metal body member 1 which grips the sheath in a known manner. An insulator 5 is interposed between the body member and a metal mounting member 7 which has a threaded spigot projecting into the enclosure. Connection to the sheath outside the enclosure is by stud 11 and inside by tag 15 formed on a metal tube 12 screwed into the body member and insulated by a shrunk-on sleeve 14. The threaded joints between the insulator 5 and the metal members are made secure by adhesive, over-tightening or ribs and grooves on the facing surfaces and the assembly may be flameproof with the insulator having an oxygen index greater than 30.
Patent GB-490025-A (GB)
Title: Improvements in and relating to processes for manufacturing knitting needle knobs
IPC: B21G1/00
Filed: 1937-02-08
Abstract: 490,025. Knitting-needles. COLTMAN, E. S. Feb. 8, 1937, No. 3740. [Class 74 (ii)] The knob 1 of a knitting-needle is provided with a cylindrical hole passing from one side to the other to receive the shaft 2 and is obtained by cutting a tube composed of a casein product. The knob may be of the shape shown or of mushroom shape, or of square or elliptical cross-section.
Patent GB-735133-A (GB)
Title: Improvements in or relating to textile drawing frames
IPC: D01H5/50
Filed: 1953-02-10
Abstract: 735,133. Textile drawing apparatus. S.K.F. KUGELLAGERFABRIKEN GES., [formerly VEREINIGTE KUGELLAGERFABRIKEN AKT.-GES.]. Feb. 10, 1953 [Feb. 28, 1952], No. 3741/53. Class 120(2). A textile drawing frame comprising a top roller carrier which is capable of being tilted out of operative position and extends over the top rollers and embodies a supporting arm and subsidiary brackets for supporting and guiding the top rollers by means of saddles is characterized in that a long bracket for supporting the front pair of top rollers extends throughout the whole length of the drafting area at a level between the subsidiary brackets supporting the remaining top rollers and the plane of the areas of the top rollers. In the embodiment shown a drawing frame comprises a base 1, a bracket 2 and a top roller carrier 3. The base 1 carries slidable bearing supports 15 and 16 for the bottom rollers 12, 13, 14. The bracket 2 is adjustably fixed to the end of the base 1 and carries on a pivot 20 the carrier 3. Locking means comprising elements 24 and 25 are provided for locking the roller carrier in its operative position. The carrier 3 consists of a box-shaped arm 21. The front pair of top rollers 29 are held in a saddle 37 by a spring 39 the saddle being fastened to the long bracket 28 which by means of a U-shaped stirrup 33 is hinged to the pivot 20. Helical springs 22 and 23 between a collar 36 on the bar 28 and collar 35 on the arm 21 serve to press the top rollers 29 against the bottom roller 11. The remaining top rolls 30, 31 and 32 are held by springs 39 in saddles 47. The saddles for the middle pairs of rollers 30 and 31 are fastened to a common subsidiary bracket 46 hinged on a pivot 50 in a member 51 which is itself pivoted at 62 in a housing 48. The saddle 47 for roller 32 is arranged on a bracket 52 pivoted at 53 to a housing 54. The housings 48 and 54 are longitudinally slidable in the arm 21 and can be fixed in any position by screws 49. Helical springs 64, 65 and 66, 67 arranged between collars 63 press the rollers 30, 31 and 32 on to the respective lower rollers 12, 13 and 14. On the outside of the arm 21 is secured an angle piece 41 to which is pivoted at 43 a lever 42 having hinged to it a stop member 45. This member 45 has an opening 451 through which the bar 28 reaches. When the lever 42 is swung forward it lifts the bar 28 and hence the rollers 29 the springs 22 and 23 being compressed. It may also be arranged that brackets 46 and 52 are also lifted by the bar 28 so that the pressure of all the springs is taken up by the stop member 45 and the bar 28. This arrangement facilitates the unlocking of the members 24 and 25 to permit raising of the carrier 3. It also aids the removal of laps from the front rollers 29.
Patent GB-652996-A (GB)
Title: Mounts for electron discharge devices
IPC: H01J19/42
Filed: 1948-02-09
Abstract: 652,996. Thermionic valves. RADIO CORPORATION OF AMERICA. Feb. 9, 1948, No. 3759. Convention date, Dec. 4, 1946. [Class 39 (i)]  An anode 12 has a sloping edge, its lead-in 18 being connected to an ear 39 at the wider end. The electron discharge device shown has two such anodes, which may be curved for added strength, with respective lead-ins 18, 19 connected together as at 20. Electrons from the cathode 16 impinge on the anode within the area enclosed in dotted lines, the shape of the anode providing more efficient heat conduction to the lead-in 18 when connected at the more remote corner of the wider end. Insulating plates 21, 22 support between them the anodes, suppressor grids 13, screen grid 14 and signal grid 27, lead-in 34 for the latter entering the top of the envelope. Each suppressor grid 13 extends above the top spacer 22 in a portion 23 having an ear 25, providing a shield between the supporting ear 24 of the anode and the signal grid lead 34. Anode/signal grid shielding is also provided below the lower spacer 21 by a curved shield 26 connected to the suppressor grid, the cathode, and lead-ins 28, 29. The shortness of the anodes leads-in allowed by their taper further assists the reduction of capacity effects.
Patent GB-535460-A (GB)
Title: Improvements in and relating to cases, cartons and the like
IPC: B65D5/38
Filed: 1940-02-29
Abstract: 535,460. Pencil boxes &c. ROYAL SOVEREIGN PENCIL CO., Ltd., and PIORNIK, L. Feb. 29, 1940, No. 3800. [Class 18] A pencil &c. box is made from the two blanks shown, the front 1c, Fig. 6, being shorter than the back 1 to provide an opening which is closable by a channel-shaped lid 2, Fig. 7, with finger-tab 2b, guides 1d being provided at the edges of the opening in the box.
Patent GB-1109771-A (GB)
Title: Insoluble films based on polyvinyl alcohol and process for the preparation thereof
IPC: C08L61/20
Filed: 1967-01-25
Abstract: An aqueous film-forming composition contains as the three film-forming ingredients (a) polyvinyl alcohol, (b) starch or dextrin, and (c) a water-soluble polymerizable reaction product of formaldehyde with urea, an amine or a phenol, together with a plasticizer and a polymerization catalyst for the reaction product, e.g. ammonium chloride, sulphate or nitrate.  The composition may also contain sodium or potassium tetraborate and the plasticizer may be a glycol, polyethylene or polypropylene glycol, sorbitol, xylitol or glycerol.  A dye, emulsifier or gelling agent may also be present. In Example 1, a film is prepared by dissolving potato dextrin and sodium tetraborate in water brought up to 80 DEG  C. under vacuum and adding successively this solution and glycerol to a solution of high molecular weight completely hydrolysed polyvinyl alcohol at 90-95 DEG C. Aqueous dimethylolurea and ammonium chloride are added, agitation and a temperature of 90 DEG  C. are maintained for one hour, and the mass is cast into a film.  Examples 3 and 4 are similar, while Example 5 uses polyvinyl alcohol of medium molecular weight and Example 6 varying quantities of sodium tetraborate.
Patent GB-470081-A (GB)
Title: Improvements relating to the hydrogenation of unsaturated compounds
IPC: C07C5/03
Filed: 1936-02-07
Abstract: The vapour phase hydrogenation of olefines to the corresponding paraffins is effected at a pressure of 500--3500 lb. per sq. in. in presence of a catalyst consisting of freshly reduced ferric oxide. The invention is particularly applicable to the conversion of di-isobutylene into iso-octane.  In this case the temperature of reaction is 240--350 DEG  C. and the partial pressure of the di-isobutylene vapour is 2--10 per cent of the total pressure.  The catalyst is prepared by the reduction with hydrogen at 300--500 DEG C. of ferric oxide in granular or pelleted form or supported on a carrier.
Patent GB-1043122-A (GB)
Title: Improvements in devices for bringing about an angular displacement between two parts, for example a ship's hatch cover sections, hingedly connected to each other
IPC: B63B19/197
Filed: 1964-01-29
Abstract: 1,043,122. Hydraulic reciprocating motors. GOTAVERKEN A. B. Jan. 29, 1964 [Feb. 1, 1963], No. 3860/64. Heading F1A. [Also in Division E2] In a device for bringing about an angulardisplacement between two parts e.g. a ship's hatch cover sections, hinged to each other, a reversible double-acting hydraulic motor 1 comprises two opposed annular pistons 3, 4 connected by tubular piston rods to slidable but non-rotatable sleeves 5, 6 which are internally threaded to engage the threads 7, 8 of rotatable non-slidable shafts 9, 10 splined at 11, 12 to engage one of the two ports, and which are externally longitudinally splined to engage cylinder extensions 15, 16 splined at 17, 18 to engage the other of the two parts. Oil is supplied under pressure from an oil tank 47 to the openings 20, 21 or 19 from a reversible hydraulic pump 23 driven by an electromotor 22 via a pair of back pressure valves 26, 27 having a common piston 34 which is moved by a pressure difference between the conduits 24, 25 to release fluid driven from the cylinder 2. An adjustable safety valve 44, 45 is provided.
Patent GB-470184-A (GB)
Title: Improvements in automatic directional electrical signals for traffic control
IPC: G08G1/07
Filed: 1936-02-10
Abstract: 470,184. Road signals for controlling traffic. BIRD, R. Feb. 10, 1936, No. 4033. Convention date, Feb. 13, 1935. [Class 118 (ii)] In a system employing interlocking relays for the two roads, a call is registered by a relay individual to the road and is made effective to transfer right of way by a constantly rotating arm. The call is normally the result of an actuation of a road pad, but suitably disposed switches enable the call to be manual, the call to be continuous in which case the apparatus operates on a fixed time basis, or the call to be effective in one road only, the right of way normally resting with the other road. The amber lamps are arranged to be lit continuously when the apparatus is not working. For full vehicle control, switches A and B are open and switches C, D and Z closed. Right of way is given to the north-south road over lead 50. When a vehicle actuates pad 4 in the east-west road, coils 40 are energized and armature 13 drops into the position shown where contacts 12 and 42 engage. When the arm R, which is constantly rotated by a synchronous or variable speed motor, next makes contact with either 6a or 8a, coils 19 are energized so that armature 18 is raised and is locked by arm 35. Rod 16 swings over to the position shown in Fig. 2 where contacts 25 and 26 are both open and contacts 27, 28 are closed to light the amber signal on all roads. When the rotating arm R makes contact with 6c (or 8c) coils 22 are energized so that contacts 27, 28 open to extinguish the amber lights and rod 16 is pulled down so that contact 14 swings into contact with contact 26 and gives right of way to the east-west road. The right of way remains with this road until a call is received from pad 3 when relays RL1, RL3 and SR are controlled by the rotating arm to return the right of way. If switches A and B are closed and switch D is opened, the system works on a fixed time cycle, the signals changing for each quarter revolution of the arm R whilst if only one of the switches A, B is closed with switch D the system gives pad control in one road with the right of way always returning to the other road. The apparatus can be controlled manually by buttons A1, B1 whilst the opening of switch C lights the amber lights continuously on both roads.