baber/WOPTO huggingface dataset:
Patent GB-230411-A (GB)
Title: Improvements in electric operating-mechanism
IPC: H01H71/68
Filed: 1924-10-10
Abstract: 230,411. British Thomson-Houston Co., Ltd., (Assignees of Perry, C. L.). March 5, 1924, [Convention date]. Controllers, actuating mechanism for. - An electric operating- mechanism comprises a two-linked toggle electroresponsive means for controlling the position of the common pivot thereof, and separately-operable electroresponsive means for extending the toggle. In the application of the invention to a switch, shown in Figs. 1 and 4, the toggle comprises links 17 - - 19 controlled by separately-operable electroresponsive devices 15, 16 to close the switch. To close the switch at contacts 45, the control switch 47 is closed to energize the device 16 which attracts its armature and, by means of link 25, moves the link 17 to the position shown in Fig. 1. and also closes a switch 26 to energize the device 15. The toggle 18, 19, now in the dotted line position in Fig. 1, is then straightened by the device 15 attracting its armature 23 to engage the roller 35 on the arm 22 of the link 18. As the toggle 18, 19 approaches the dead-centre, the device 15 is de-energized by the link 18 engaging the plunger 29 to open the switch 27, but the inertia of the parts carries it over the deadcentre against a stop 32, closing the switch which is held closed by the device 16 till the latter is de-energized. The link 19 is secured to a rocker 21 pivoted to a support 37, the rocker 21 being either directly, or as shown, connected to the contacts 45 and being provided with a stop 38 and cushioning and counterbalancing spring 38. When the device 16 is de-energized. the link 17 will move against the stop 30 and as the links 18, 19 approach the dead-centre, the link 18 engages the roller on the stop 33 and the toggle collapses, opening the switch. In an application of the) invention to forward and reverse switches for motors, Figs. 5 and 7, the parts are the same for each switch except the device 15 which is common to both and is adapted to straighten whichever toggle is in position to be straightened. The armature 23, Fig. 5, engages a roller 50 on a member 51 which is hinged to a shaft 54 and provided with arms 52 for engaging the rollers 35 on the links 18, 18<1>. The controller 55, Fig. 7, has a forward, reverse, and neutral position and is shown in position for driving the motor forwardly. To reverse the motor, the controller is thrown over, thereby de-energizing the device 16<1>, opening switches 45<1>, 26<1>, and closing the switch 27'. At the same time the device 16 is energized to close the switch 45 as described with reference to the first embodiment, the circuit for the device 15 being through switches 26, 27, 27<1>. This arrangement is applicable to more than two switches and to other than reversing switches, while in both arrangements considerably less energy is required by the device 16 to hold the mechanism in operative position than is required by the device 15 to move it to such position.
Patent GB-615014-A (GB)
Title: Improvements relating to gaffs for use by fishermen when landing fish
IPC: A01K97/14
Filed: 1946-08-14
Abstract: 615,014. Fishing gaffs. TAYLOR, S. C. Aug. 14, 1946. No. 24093. [Class 48] The gaff comprises a hooked rod b secured to a bracket a<1> and a pivotable hooked rod c which may be retracted to the position shown dotted and then allowed to revert to its normal place by action of a spring d. Additional hooks or spikes f may be provided. In the dotted position a handle e passes over its deadcentre position and is held thus by a wire c<4> until released.
Patent GB-1121978-A (GB)
Title: Method of preparing polymers
IPC: C08G81/02
Filed: 1967-05-24
Abstract: Multi-block copolymers are produced by (1) polymerizing a first monomer using an anionic catalyst, (2) adding to the living homopolymer so formed a second monomer and allowing said second monomer to polymerize on to the end of said homopolymer, and (3) coupling the living block copolymer formed by reacting the live ends thereof with a halogen or interhalogen compound, or the haloid compounds (CN)2 and (CNS)2.  The process is performed under anhydrous conditions, suitably in the presence of a solvent.  Suitably the first monomer is a vinyl substituted aromatic hydrocarbon and the second monomer is a conjugated diolefinic hydrocarbon.  Suitable initiators are the Li and Na hydrocarbyls.  In the examples, polystyrene-polybutadiene-polystyrene block copolymers, and also five-block copolymers of these monomers, are formed using n-butyl lithium as initiator, benzene as solvent, and the coupling agents used are Cl2, Br2, I2, and ICl. The use of ICl3 is also specified. The resulting copolymers are pressed into films and microdumbells prepared therefrom.
Patent GB-1413182-A (GB)
Title: Vehicle load lifting and lowering apparatus
IPC: B60P1/44
Filed: 1973-05-21
Abstract: 1413182 Vehicle load lifting platform JOHN RATCLIFF (TAIL LIFTS) Ltd 15 May 1974 [21 May 1973] 24157/73 Heading B8E A vehicle tail lift comprises a platform 29 pivoted at 31 between runners 18 movable along guide channels 11 by two stage rams 21. The guide channels 11 at either side of a vehicle opening are mounted on support posts 39 by an articulated parallelogram linkage 24, 26, the former having an arm 26 pivoted thereto at 27 and movable from a vertical inoperative position to an inclined position in which it can be locked to engage a roller 28 on the runner 18 as the latter is moved in either direction on the channel 11. With the arms 26 inoperative the rams 21 can raise and lower the platform on the guide channels 11 and when the level 33 of the vehicle platform is reached catches 35, 36 engage to hold it there and a barrier 42 is lowered to allow goods transfer. With the arms 26 operative they engage the rollers 28 to swing the channels 11, platform 29 and rams 21 flat against the posts 39 where they are held by latches 46 while a reverse movement of the runners 18 unfolds the parts which become supported by feet 12 of an hydraulic ram 13 in a closed hydraulic circuit.
Patent GB-701134-A (GB)
Title: Improved pressure mechanism for the drafting rollers of spinning frames and other fibre-preparation machines
IPC: D01H5/50
Filed: 1951-10-17
Abstract: 701,134. Roller weighting arrangements. ESTIRAJES BALMES SOC. ANON. Oct. 17, 1951 [Oct. 25, 1950], No. 24222/51. Class 120(2) A mechanism for applying pressure to the drafting rollers of spinning frames or other fibre preparation machines comprises a saddle formed in two parts 11 and 12 articulated together at 13, the front part 11 being pivoted at 17 to one end of a lever 15 which is itself pivoted at 16 upon an arm 21 rotatably mounted upon the usual bar 20 at the rear of the drawing rollers, which bar also carries a mounting 30 for a spring.18 which acts upon the lever 15 to supply pressure to the rollers when the arm 21 is held fixed in a position adjacent to and above the rollers. This fixation is provided by a latch 28 mounted upon the arm 21 cooperating with a shoulder 27 of a member 26 fixedly mounted upon the bar 20. The bar 20 is itself rotatably mounted to allow the arm 21, and its associated pressure mechanism to be rotated away from the rollers to facilitate cleaning, such rotation being prevented, when pressure is to be applied to the roller, by the co-operation of an abutment 42 of a member 40 fixedly mounted on the bar 20 with a latch device 43 mounted for rotation upon the machine frame.. A counterpoise portion 45 of the latch holds the device 43 in the normal position. Pressure upon the front roller may be relieved independently of that upon the other rollers by raising the portion 11 about its pivot 13, a handle 14 being provided for this purpose and a latch 36 co-operating with a shoulder 37 being provided to hold the portion 11 in its raised position.
Patent GB-1450279-A (GB)
Title: Device for positioning and covering documents in a reprographic machine
IPC: G03B27/62
Filed: 1974-05-31
Abstract: 1450279 Platen cover ING C OLIVETTI & C SpA 31 May 1974 [12 June 1973] 24230/74 Heading G2A A platen cover 10 and reciprocatory carriage 1 for a platen 7 are pivotally connected to opposite ends of two arms 8 and 9, arm 9 having a pivot rod 20 and being coupled by traction springs 55 and 56 to a cover actuating arm 30 which is also pivoted at 20 and has a side tongue 31 co-operating with cover 10 during opening action, springs 55 and 56 urging cover 10 against a book original when actuating arm 30 is held in the closure position by the engagement of a hook 36, connected to arm 30, with a lever 38, connected to carriage 1. When a required number of copies has been made, a copy counter actuates anti-clockwise rotation of lever 38 to disengage hook 36 and allow opening action of arm 30 under the action of a spring 60, rotation of lever 38 being caused by the movement of a peg 79, connected to the machine body 2, into the path of a spring-biased lug 80, connected to carriage 1, during the final return of carriage 1 to its home position. Hook 36 may be manually disengaged by a spring-biased key (33) Fig. 3b (not shown). The opening action of arm 30 is damped by a spring 50 causing a rod (45) connected to arm 30 to ride against the upper edge of a slot (47) in carriage 1. Cover 10 may have an opaque flap 86.
Patent GB-945182-A (GB)
Title: An automatically-operating valve device for protecting vacuum pumps
Inventor: PEPLOW ALBERT EDGAR
IPC: F16K17/36
Filed: 1961-07-05
Abstract: 945,182. Valves. GENITO-URINARY MANUFACTURING CO. Ltd. May 4, 1962 [July 5, 1961], No. 24231/61. Heading F2V. Fluid from a source 2 is aspirated into a jar 1 by a pump 3 the intake duct 4 of which is provided with a protecting device 5 comprising a valve member 7 normally held open, against the force of a spring 14, by a pivoted lever 17 latched by a disruptible member 20, e.g. a piece of blotting paper. Should the air in the duct 4 become moisture laden the member 20 breaks and the spring 14 moves the valve member to the closed position. The member 20 may be replaced by soluble pellet located between the lever 17 and the lid 9.
Patent GB-1115421-A (GB)
Title: Blasting mats
IPC: E21F17/00
Filed: 1966-05-31
Abstract: 1,115,421. Blasting mats. C. F. LUNDIN, and J. H.-U. E. SPEER. 31 May, 1966 [31 May, 1965], No. 24283/66. Heading F3A. A blasting mat for covering the site at which an explosive charge has been laid so as to dampen the subsequent detonation waves and to prevent the spreading of debris, comprises a plurality of tubes 1 made of flexible material, e.g. rubber or polyolefines, and disposed parallel to one another, wherein wire 10 passes longitudinally through the tubes to reinforce the mat, and wire 3 passes transversely of the mat through holes in the tubes to hold the tubes together. The wire 10 may follow a tortuous path back and forth through the tubes. The tubes which may lie closely adjacent to each other or be spaced apart with the aid of distancepieces (not shown), may be filled with heavy and blast dampening material, e.g. sand, and closed at both ends. Two mats A and B may be placed side-by-side and the bends in the wires 10 of each mat, situated opposite each other, woven or bound together by means of an additional wire threaded in the bends. On firing the explosive charge the adjacent ends of the tubes in mats A and B hinge about the common joint and are displaced into each other to give a looking effect.
Patent GB-1244588-A (GB)
Title: Piston and connecting rod assembly
IPC: F16J1/16
Filed: 1970-05-20
Abstract: 1,244,588. Pistons; connecting-rods. FORD MOTOR CO. Ltd. 20 May, 1970, No. 24313/70. Heading F2T. In a piston and connecting-rod assembly the gudgeon pin 12 is hollow, closed at both ends, as by plugs 13, and contains a heat transfer medium 15 which is liquid at the operating temperature of the assembly. The heat transfer medium which may be oil, sodium or mercury assists, in use, to transfer heat from the piston 10 to the connecting rod 11.
Patent GB-859426-A (GB)
Title: Earth and the like boring or drilling apparatus
Inventor: WALMSLEY FRANK
IPC: E21B19/16
Filed: 1958-07-29
Abstract: 859,426. Drilling. ENGLISH DRILLING EQUIPMENT CO. Ltd. July 29, 1959 [July 29, 1958], No. 24367/58. Class 83 (3). In earth and the like drilling-apparatus having a head f, Fig. 1, for rotating the drill mounted for feedmovement along a support c, the means for coupling the drill to the head f have limited axial movement relatively to the head to facilitate coupling or uncoupling of the head from each unit of the drillstring. The support c is carried on a main frame a secured between ceiling and ground levels of an underground working by jacks b. The support c, which consists of channel side members cl, is adjustable in height and inclination by means d, and carries, at its forward end, means k for clamping the drill whilst coupling or uncoupling. The head f comprises a cylindrical member p, Fig. 3, rotated, e.g. by a compressed-air motor g, through gearing, the cylinder having a screwed gland s with a hexagonal bore to guide a hexagonal rod t<1> with a head t slidable in the member p. The rocl t<1> is screwed at t<2> to a socket member j having drill-rod coupling threads v. A flush-water swivel u is provided. The free axial movement of the head t and rod t<1> renders the axial movement of the socket j during coupling and uncoupling independent of the main traversing movement of the head f, and facilitates the coupling and uncoupling operations. The clamping means k, Fig. 4, has opposed serrated grippers 6, 7 forced towards each other by hydraulic cylinders 8, 9, secured to a cross-beam 13 connected by links 14 to wedge-formations on the grippers. The gripper 6 has a concave-face to conform with the drillrod, but the gripper 7 may have a concave, convex or flat-form, and its gripping portion 7c hinged at 19 to the part 7a to prevent slip against the drill. If drilling is to be effected at an angle to the horizontal, a spring w is incorporated in the head f to balance the weight of the member j, swivel u and one drill-rod. Alternatively, the spring may be located behind the head t. Guide-rollers m for the drill may be mounted on the clamp k.
Patent GB-885340-A (GB)
Title: A board game
IPC: A63F3/04
Filed: 1959-07-16
Abstract: 885,340. Board games. WITTENBERG, H. Oct. 14, 1960 [July 16, 1959], No. 24498/59. Class 132(2) A word-building race game comprises a board marked as shown with two similar areas 10 each having at its lower end a starting line divided into coloured squares and at its upper end a finishing line (not shown) the intermediate part being marked with blank squares and coloured letter squares. The starting square is determined by a die having coloured faces and the players enter letters in the blank squares to try to make a word using these and the printed letters extending up the track. Next turn, the player starts on the line where the previous word ended, the starting square being again selected by the die. The letters may be written in the blank squares or marked by lettered playing pieces. The board consists of a printed base 1 with a transparent cover 2 secured in place by an edge strip 3. In a modified form, the coloured squares of the starting line are not lettered, the first letter being determined by drawing a lettered block from a pool.
Patent GB-647039-A (GB)
Title: Improvements in or relating to rolling mills, rod mills, calenders, and the like
IPC: B21B31/02
Filed: 1948-10-18
Abstract: 647,039. Rolling- machines, calenders, &c. indicating &c. HUGHES, A. T. Oct. 18, 1948, No. 24507. [Class 87 (ii)] [Also in Groups II and XXII] In a rolling mill, rod mill, calender or like machine, there is interposed between the bearing blocks e, f at each end of its pair or pairs of co-operating rolls, b, c, a rigid distance-piece to maintain the nip of said rolls a required distance apart, said distance-piece comprising a load or pressure measuring device adapted to indicate a load greater than that utilized between the nip of said rolls, and preset upon the bearing blocks. Projections f<SP>1</SP> on the block f engage in recesses c<SP>1</SP> in the block c to maintain the rolls in parallelism. The pressure measuring device h is preferably of the Statimeter " (Registered Trade Mark) type. In a modification, Fig. 2 (not shown), each distance-piece includes adjustable wedge-shaped members by means of which the roll pass may be adjusted.
Patent GB-598392-A (GB)
Title: Improvements relating to sheet material, particularly suitable for the manufacture of fuel tanks and the like
Filed: 1945-09-21
Abstract: 598,392. Tanks. FIREPROOF TANKS, Ltd., and HOOK, G. S. Sept. 21, 1945, No: 24524. [Class 69 (i)] [Also in Group VIII] Flexible tanks for aircraft, water-craft, land vehicles or containers dropped from lowflying aircraft are manufactured from compound sheet material which comprises sheeting of an elastic material a with a fibrous reinforcement b united to the sheeting a, the fibrous reinforcement having a smaller elasticity and a smaller tensile strength than the sheeting so that when the compound material is subjected to stress less than a predetermined amount, the fibrous reinforcement reduces substantially plastic flow and limits distortion of the sheeting, but when the' compound material is stressed beyond that amount, the fibrous reinforcement breaks at many points and does not materially reduce the elastic properties of the sheeting. The elastic material may be natural or synthetic rubber or plasticised polyvinyl resins or plasticised polyvinyl acetal resins. The fibrous reinforcement may consist of open, weave fabric such as linen scrim or layers of parallel yarns or net material.. A second sheet of elastic material may be applied to the other side of the fibrous reinforcement b. Sheets of the material are joined together by sealing, such as cementing or high-frequency heating, the overlapping edges.
Patent GB-584094-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/10
Filed: 1944-12-08
Abstract: 584,094. Alternating current motors. NEWMAN INDUSTRIES, Ltd., and KACSER, F. Dec. 8, 1944, No. 24555. [Class 35] In a shaded pole motor, the shading ring is cast in position, thus fixing the pole laminations, and may have extensions carrying the rotor bearings. In one form, the polepieces 3, 4 are slotted at 5 to receive the rings 6 which also have ears to hold those parts of the poles not encircled. The windings 7 are slipped over the poles which are assembled in a yoke 8 secured by rivets 9. In modifications, the rings have extensions at one or both ends to carry the rotor shaft bearing. The two-part sheet metal casing is resiliently supported by rubber bushes on the core clamping bolts or by rubber mounted bearings. In addition, the end ring may also support resistance coils and a controlling knob. The shading ring may be composed of aluminium or zinc or their alloys and may contain a small proportion of silicon.
Patent GB-825141-A (GB)
Title: Improvements in or relating to buildings
IPC: E04B2/70
Filed: 1956-08-10
Abstract: 825,141. Walls etc.; wall panels; posts. FRIBERG, K. A. Aug. 10, 1956 [Aug. 19, 1955], No. 24618/56. Classes 20(1), 20(4), and 87(1) In a building having walls of prefabricated wall plates, each of the latter comprising a frame and two sheets 1 covering the frame on respective sides, and two opposite vertical edges 2, 2<SP>1</SP> of each wall plate being provided with undercut grooves for interconnecting the wall plates, the grooves are on one flat side of the plates formed directly by the sheet of that side and on the opposite flat side cut in the frame portion, the latter being hookshaped in cross-section and forming a coupling member for sliding engagement with the undercut edge of an adjacent wall plate. As shown in Figs. 6 and 7 each wall plate I consists of a wooden frame having two parallel edges 2, 2<SP>1</SP> substantially U-shaped in cross-section and two beams 33<SP>1</SP> respectively formed with groove and tongue members 4, 4<SP>1</SP>, the sides of the frame being covered with wood fibre boards 1; the space enclosed by the boards is filled with heat-insulating material. Wall plates adjacent the roof of the building have the uppermost beam 3<SP>1</SP> thereof obliquely orientated with respect to the lower beam. The boards 1 project beyond the space defined by a groove as indicated at 1<SP>1</SP>, but the edges of the boards register with the outer edges of the beams 3. 3<SP>1</SP>. The grooves may be cut on a milling machine, or formed by glueing anglesection members 9 to members of rectangular cross-section. Interiorly of the building, spaces 10 between the boards I of wall plates disposed at right-anglesto one another are covered by a fillet 11, and at the posts 5, 6 such spaces are covered by strips 12, 13. Window frames 16, Fig. 3, have channels 18, 18<SP>1</SP> for the reception of the plane transverse beams 17, 17<SP>1</SP> of wall plates adjacent thereto, and beams 23, Fig. 11, carried on the tongued beam of a wall plate support the flooring 24 of an upper storey, there being an intermediate beam 25 for connection with an upper wall plate. The ground 'beams 19, Fig. 4, of the building have a longitudinal tongue 21 received in the groove 4 of a lower beam 3 of a wall plate. In a building comprising at least four compartments, the intermediate posts are provided with grooves on all faces thereof and are made of two profiled sections of equal configuration secured together, and to enhance stability of the building, the intermediate posts may be formed of a post of square cross-section having coupling members attached thereto
Patent GB-1352934-A (GB)
Title: Screw extruder
IPC: B29C48/03
Filed: 1971-04-19
Abstract: 1352934 Extruder screw BARMAG BARMER MASCHINENFABRIK AG 19 April 1971 [13 April 1970] 24664/71 Heading B5A [Also in Division B1] The screw of an extruder for thermoplastics material, comprises one or more sections comprising a pair of co-extensive channels 6, 7, each of continuously but oppositely varying depths, and which are defined between a pair of constant pitch screw flights 2, 5, one 5 of which, Fig. 1, has a clearance (2s) with the barrel of at least twice that (s) of the other, to effect homogenizing shearing of particulate material passing thereover. The sum of the depths of the channels 6, 7, is constant, and the depths of each channel may vary over a section comprising a screw length of at least ¢D, 5D as in Fig. 1, 10D, 11D as in Fig. 2 (not shown), or 4À5D as in Fig. 3. Where more than one section of the channel depths varying between maximum and minimum are provided, the clearance of each land to the barrel may be altered to that of the other in the following section, e.g. as at 18, Fig. 3, to produce a shearing flow across the land clearance of 2s which is always in the downstream or in the upstream direction. Mixing means may be provided as radial projections from the screw core, or slot like openings in the screw flights.