baber/WOPTO huggingface dataset:
Patent GB-808864-A (GB)
Title: Improvements in and relating to electric switches
Inventor: TATCHELL JAMES ALBERT
IPC: H01H25/06
Filed: 1956-09-17
Abstract: 808,864. Retractive switches; switches held set and freed mechanically. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 23,1957 [Sept. 17, 1956], No. 28335/56. Class 38 (5). A mercury-tube switch is controlled by a rotatable member which passes through and is bonded to a rubber element the outer surface of which is itself constrained against movement, whereby rotation of the rotatable member displaces the switch from its normal position against the torsional resistance of the rubber element. In Fig. 1, a shaft 1 operated by a knob 3 carries a mercury-tube switch and is bonded to a rubber annulus (not shown) the outer surface of which is bonded to a drum 10 fixed to a base 2. Fixed to drum 10 is a head 14 having pairs of opposed grooves 12, 12<SP>1</SP> and 13, 13<SP>1</SP> co-operating with a pin 11 on the shaft 1. The rubber element is slightly stressed in torsion and longitudinally so as to retain the pin 11 normally in grooves 12, 121, the stress being increased when the knob 3 is pushed in and rotated to bring the pin over sloping shoulders 15, 15<SP>1</SP> into grooves 13, 13<SP>1</SP>, where it is retained. On again pushing the knob, the stress in the rubber restores the parts to the position shown. In Figs. 2, 3, the pin 11 is normally retained against one face of each of a pair of recesses 18, 18<SP>1</SP> of a rotary retractive switch. The mercury switch is secured to the cheeks 19, 20 of a bobbin which is free on the shaft 1 but is driven by the bent-out ends of the pin 11 engaging aligned holes in the cheeks 19, 20, there being two sets of circumferentiallyspaced holes so that the switch may be a normally-open or normally-closed one. By extending the shaft and pin, additional bobbin-mounted switches may be fitted. The head 14 may be unscrewed at 16, 17 from the drum and replaced by one having a recess 12, 13 of the contour shown in Fig. 5 in which the pin may be retained in the part 13. The Provisional Specification refers also to operation by mechanical means.
Patent GB-1314416-A (GB)
Title: Process for treating substrates in order to reduce the magnetic angular dispersion of thin ferromagnetic films deposited on such substrates
IPC: H01F41/24
Filed: 1970-06-11
Abstract: 1314416 Electro-depositing Ni-Fe SOC INDUSTRIELLE HONEYWELL BULL 11 June 1970 [11 June 1969] 28412/70 Heading C7B [Also in Division H1] A magnetic memory element is formed by immersing a copper wire in a palladium chloride solution containing HCl and then, after rinsing, electrolytically depositing a Ni-Fe layer in the presence of an orienting magnetic field.
Patent GB-711129-A (GB)
Title: Improvements in or relating to fluid pressure operated controlling devices
IPC: B60T13/14
Filed: 1952-11-11
Abstract: 711,129. Hydraulic brakes. BENDIX AVIATION CORPORATION. Nov. 11, 1952 [Nov. 29, 1951], No. 28414/52. Class 103(1) In a servo-hydraulic master cylinder for brakes or other actuated devices an initial thrust on the operating rod 36 causes closure of a valve 42 in piston 37 and movement of the latter to produce a light pressure in chamber 38 which is sufficient to take up slack in the brakes 30 by transmission through port 94 and conduit 28. Further movement of piston 37 causes an increased pressure in chamber 38 which, when sufficient, forces the stepped piston 56 to the left against spring 64, closing valve 67 and opening valve 70, so that chamber 80 is cut off from a conduit 26 to a reservoir 24 and opened to a connection 14 to an accumulator 16. Pressure fluid thus present in chamber 80 is connected by a passage 78 to the chamber 40 on the right of main piston 37 so that a boost force is automatically applied. Due to the proportions given to the stepped piston 56, the pressure forces acting on the opposite faces thereof are stable and the ultimate pressure produced in chamber 40 reaches a definite maximum value. The manner of such operation is described in Specification 655,552 which relates to a similar device. A safety relief valve is however located in one end of piston 56 which limits the pressure in chamber 38 to approximately 1200 lb. per square inch. This valve comprises a valve element having a rubber insert 86 bearing on a seat 88. At about 1200 lb. per square inch the valve lifts against spring 92 to allow pressure fluid to flow by groove 87 to port 52 and the reservoir 24.
Patent GB-1507676-A (GB)
Title: Flexible tubes
IPC: F16K7/06
Filed: 1974-06-27
Abstract: 1507676 Tube assemblies; valves F SUMMERFIELD 3 April 1975 [27 June 1974] 28474/74 Headings F2P and F2V A tube comprising a flexible member 10 having an outer preformed separable fabric reinforcing layer 24 for use in a pinch valve, Fig. 2, has end flanges 12 having reverse directed ribs 14 for positioning the tube in the bore of the pinch valve, and opposing internal shoulders 18, each extending within a segment defined by angle 20, Fig. 1, along a length 16 of the tube wherein the shoulders divide the tube section into two portions, one including the shoulders, having equal circumferential internal lengths such that under action of the pinching plunger 300 one portion is wrapped into the other over the shoulders, Fig. 6. The flexible member 10 is preferably of rubber and the fabric reinforcing layer of polyester and/or nylon yarns arranged such that the warp threads extend axially and the weft threads extend circumferentially of the sleeve. The valve may be operated manually, pneumatically, electrically or hydraulically and may be provided with an indicator comprising a mask 292 progressively visible through window 294 closing the valve.
Patent GB-1220733-A (GB)
Title: Improvements relating to loader arrangements primarily for agricultural tractors
Inventor: GREEN DENNIS JAMES
IPC: B60P1/50
Filed: 1968-06-15
Abstract: 1,220,733. Tractor load-handling attachments. MIDLAND INDUSTRIES Ltd. 12 Sept., 1969 [15 June, 1968], No. 28625/68. Heading B8H. A loader attachment on a tractor 20 comprises a jib 24 pivoted at 26 to a stationary part of frame 22. An implement attachment comprises a first radius arm 70 pivoted at 72 to the frame 22 and at 68 to an implement 44, shown as a pair of tines 46, the jib 24 forming a second radius arm of a parallel linkage arrangement. The implement 44 is pivotally connected at 64 to a point intermediate the ends of a lever 42 pivoted at 28 to the jib 24 and at 40 to the piston-rod of an implement tilting ram 36 whose cylinder is pivoted at 38 to a member fixed to the jib 24. The jib 24 is luffed by an hydraulic ram 32, the radius arm 70 ensuring that the tines 46 remain parallel to their initial setting. The ram 36 is used to tilt the tines 46 with respect to the jib 24. The jib 24 and first radius arm 70 arrangement is duplicated on either side of the tractor 20, their forward ends being connected through the implement frame, Fig. 5 (not shown).
Patent GB-1115713-A (GB)
Title: Laminates of polyethylene terephthalate
IPC: B32B27/00
Filed: 1966-06-27
Abstract: 1,115,713. Non-metallic pipes. E.I. DU PONT DE NEMOURS & CO. 27 June, 1966 [12 July, 1965], No. 28627/66. Heading F2P. [Also in Division B5]. A non-metallic pipe comprises at least two layers of uniaxially oriented, longitudinallysplit-resistant, creep-resistant tape of polyethylene terephthalate, and an interlayer of adhesive between the layers, said adhesive being an extensible tough layer which is a non-solvent for the tape. The adhesive is suitably polyethylene or a polyester copolymer having a melting point of less than 150‹ C. The tapes are suitably wound around a mandrel, which may be covered with, e.g. a polyethylene tube sheath, so that it may be removed. Preferably, four layers of tape are used, the inner two layers being wound with a right-hand helical twist and laterally abutted with a 50% overlap, and the outer two layers being similarly abutted but with a left-hand helical twist. Alternatively, eight layers of tape may be used.
Patent GB-1262490-A (GB)
Title: Improvements in weft selector mechanisms for weaving looms
Inventor: PORTER IAN STEPHEN
IPC: D03D47/00
Filed: 1968-06-15
Abstract: 1,262,490. Weft selector mechanism for shuttleless looms. WILSON & LONGBOTTOM Ltd. 13 June, 1969 [15 June, 1968], No. 28631/68. Heading DIE. In a gripper shuttle or rapier type loom, a weft selector mechanism comprises a plurality of weft guides g 1 , g 2  &c carried by levers 32 mounted on a sley 14 so as to move therewith, the levers being selectively movable to place its weft guide in a position for engagement by the gripper shuttle or rapier at the commencement of a pick. As shown the sley carries a front reed 4, rear reed 8 and a race block 16 along which the gripper shuttle 18 or rapier is guided. The levers 32 are pivoted on a shaft 30 carried by plates 28 secured to the sley and are selected, under the control of a jacquard or dobby, by cables 38. Springs 56 normally hold the levers in inoperative position and stops 52 determine their operative position. The levers 32 may alternatively be mounted on the reed cap 6.
Patent GB-1018721-A (GB)
Title: Apparatus for shaping a workpiece
Inventor: MAILLET ALFRED MARIE AIME
IPC: B23Q35/121
Filed: 1962-07-26
Abstract: <PICT:1018721/C6-C7/1> Apparatus for profiling e.g. by electrolytic erosion, a workpiece 30 to the shape of a flat template 12 comprises a copying mechanism 1, 2 interconnecting the template and workpiece and mounted on a fixed centre 3, the template being rotated against a fixed feeler 13 by means of a friction disc 21 on a fixed axis 22. The template consists of a strip 12 cemented. welded or screwed to the underside of a plate 11 located by screws 10 within a frame 8 movable on ball members 20, Fig. 2 (not shown) and articulated at 4, 6 respectively to the copying linkage 1, 2.  The top surface of template plate 11 is engaged by the friction disc 21 carried by an arm 27 and driven through belt 25 by a motor 26.  Disc 21 may be magnetized or carry an electromagnet to assist the friction drive and the coefficient of friction may be varied by the use of a resin or a lubricant.  Workpiece 30 is mounted within a frame 9 movable on ball members 37, Fig. 2 (not shown), and articulated at 5, 7 to the linkage 1, 2.  A fixed shaping tool 32 carried by an arm 33 may be an erosive tool electrode which may be a wire.  The workpiece is then located in a bath 35 filled with electrolyte. Electrode 32 may be inclined to the surface of the workpiece for forming an inclined surface thereon.
Patent GB-1459345-A (GB)
Title: Method of producing three-dimensional foam plastic forms
IPC: B41M5/36
Filed: 1974-06-28
Abstract: 1459345 Producing designs on surfaces B S FERRIS 28 June 1974 28813/74 Heading B6G [Also in Division G2] A method of producing 3-D replicas of designs which comprises (a) printing the design using heat-resistant ink on the surface of a layer of polystyrene foam preferably 0À06-0À25 inch thick and (b) exposing to heat from a high temperature source (e.g. a gas flame) to collapse and dissipate the sheet in the areas not carrying the design. The replicas may be used for decoration, making signs or for making letter-press printing plates.
Patent GB-170866-A (GB)
Title: Improvements in and connected with pens with ink reservoir attachments
IPC: B43K5/00
Filed: 1921-10-31
Abstract: 170,866. Falcone, A., and Cominelli, A. Oct. 31, 1921, Inkstands; pencil and like holders.-A pen is provided with a detachable ink receptacle fitted with a closing-device that prevents escape of the ink but permits the dipping of the nib. The pen comprises three main parts, namely, a penholder 3 carrying a nib 5, a tube 6 closed at one end which serves as a cap for enclosing the ink receptacle when not in use and as a handle during writing, and a tube 1 open at both ends and divided into two parts by a plug 17, the upper part 2 acting as an ink receptacle and the lower part 4 as a sheath for the pen when not in use. Near the upper end of the tube 1 is formed a neck 11, Fig. 2, against which a plug 15 is normally held by a spring 16, the other end thereof bearing against the plug 17, to prevent escape of the ink. The nib is inserted into the space 12 at the upper end of the tube 1 and pressed upon by the plug 15, which recedes against the action of the spring 16 to allow the passage of ink. Any excess ink remaining above the plug 15 is returned to the receptacle by depressing the plug. In the modification shown in Fig 6, a truncated cone 19, to serve as a funnel and as a trap for any ink in the space 12, is inserted in the upper end of the tube 1, and a little lower down a similar liquid-tight cone 22 is fixed, the lower open end thereof serving as a seat for the plug 15. If desired the second cone 22 may be dispensed with.
Patent GB-734170-A (GB)
Title: Improvements in or relating to vibrators
IPC: B06B1/16
Filed: 1953-10-20
Abstract: 734,170. Vibratory mechanism. AKTIEBOLAGET VIBRO-VERKEN. Oct. 20, 1953 [Oct. 21, 1952], No. 28899/53. Class 80 (4). In a vibratory mechanism in which a rolling body is driven around an internal or external track the track and/or the co-operating surface of the rolling body is formed in two parts, one of which has an increasing diameter in the direction towards the other part which increases to a greater extent than the diameter of the other part. The rolling body thereby assumes a position of axial equilibrium. Various different arrangements are described and in Fig. 1 a roller body 5, 6 with spherical ends runs on a double conical track 3, 4. Alternatively the roller body may be cylindrical or double conical so long as point contact between the surfaces is obtained. The elements of the vibrator may also be interchanged so that the member 1 rolls on the member 2. In Fig. 5 an axially free conical pendulum 11 co-operates with rolling surfaces 14, 15. In Fig. 8 only one track surface 32 is of increasing diameter, the other 33 being cylindrical or the latter surface may increase in diameter but to a lesser extent. The rolling body may be arranged to deflect under centrifugal force so that whilst point contact is obtained whilst at rest when the mechanism is operating contact over an appreciable axial length is obtained.
Patent GB-281856-A (GB)
Title: Improvements in and relating to passenger carrying amusement devices of the endless track variety
IPC: A63G7/00
Filed: 1926-11-17
Abstract: 281,856. Davidson, J. G. Nov. 17, 1926. Freely moving cars; recreative apparatus, details of. - Turntables a provided with seats n are rotatably mounted on carriages b which are propelled round an endless track A by means of a cable &c. c, and the turntables are given a rotary movement by being pushed against either a wall e surrounding the track or one at the inner edge .of the track. Links g are connected to a link h pivotally connected to each carriage, the'outer ends of the links g falling 'short of or passing beyond a groove j<8> defining the path of movement of the centre of the carriage according as the table is to engage the inner or outer wall. One pair of wheels i may be steered by being connected by, a rod j<6> from which depends a pin j<7> engaging the groove j<8> The carriages-may be guided round the curves of the track by a reduced part o of one wheel i engaging a projecting rail o<1>. The rotation of the tables may be increased or reversed by making the wall e travel against or with the movement of the carriages. An undulating track may be arranged in such a manner that while one part of the table remains at a constant level, other parts rise and fall. According to the Provisional Specification the carriages may be pulled instead of pushed.
Patent GB-162235-A (GB)
Title: Improvements in steering wheels for motor vehicles
IPC: B62D1/10
Filed: 1920-10-13
Abstract: 162,235. Tobias, W. L. Oct. 13, 1920. Hand-wheels.-The outer portion 18 of a steering-wheel is adapted to turn loosely on a central portion 5 to which it may be locked by sliding a bolt or bolts 18a into a radial opening 16 which may extend into the post 1. When the outer portion is free the end of the bolt may run in an annular recess 15. The portion 5 may be secured to the steering post 1 by set screws and the nut 4, and is provided with a screw cap 11, the outer portion 18 of the wheel being confined between the flanges 8, 13.
Patent GB-957725-A (GB)
Title: Electro-hydraulic servo control valve
IPC: F15B13/043
Filed: 1960-08-23
Abstract: 957, 725. Fluid-pressure servomotor systems. BORG-WARNER CORPORATION. Aug. 23, 1960 [Aug. 31, 1959], No. 29161/60. Heading G3P. A fluid-pressure servomotor system includes an electro responsive torque motor 29, a flapper 26 operated by the motor, a body 1, an elongated opening 12 in the body, shuttle means 41, a flexible seal 28 connected to the flapper and the body, mechanical feedback means 54, 55 between the shuttle and the flapper, a pair of nozzles 17, 21 respectively positioned at opposite sides of the flapper whereby movement of the flapper by the torque motor simultaneously and inversely varies the flow of fluid through the nozzles, passages 5, 6 to supply high pressure fluid to spaced portions of the opening 12, passages 7, 8 to supply lower pressure fluid to opposite end portions 13, 14 of the opening 12 and to nozzles 17, 21, and passages 56, 58 to supply high pressure fluid from the opening 12 to a controlled device 57 upon movement of the shuttle means. The seal 28 is a flexible diaphragm of berylium copper or spring steel. When the flapper 26 is pivoted anti-clockwise, for example, by the torque motor, pressure is increased in the nozzle 21 and in the space 14 to displace the shuttle means 41 to the left connecting the right hand side of the device 57 to the high pressure passage 6 and the left hand side to a sump port 25 through a passage 61. The feedback means 54, 55 consist of constant tension springs through which the shuttle means exert a linearly increasing force on the flapper to return it to a neutral position while the torque motor has two bifilar windings 29, 31 and a permanent magnet 40. A pressure port 4 supplies an opening 2 containing a ten micron filter 3 of sintered metal wire and communicating with the passages 7, 8 through restrictors 9, 11 which reduce the supply pressure from 3000 p.s.i. to about 300 to 700 p.s.i. To protect the flapper from impact forces due to fluid flow through the system, shields 46 and 51 are provided on the shuttle means.
Patent GB-835030-A (GB)
Title: Improvements in or relating to welding apparatus
Inventor: COOKE FRANK ARTHUR
IPC: B23K9/028
Filed: 1956-09-24
Abstract: 835,030. Welding by fusion tube expanders. ROLLS-ROYCE Ltd. Sept. 23, 1957 [Sept. 24, 1956], No. 29198/56. Class 83 (4). In a support for the ends of tubular parts, e.g. parts of a jet pipe for a gas-turbine engine, to be butt-welded, in which shoes are carried on arms extending radially from a hub, the shoes have alternately diverging and converging end surfaces and when the rams are fully extended provide a continuous annular support for the butting ends on each side of the joint. The rams when fully extended expand the ends of the tubular parts. The hub 29 is mounted on a shaft 15 rotatable within an arm 14 on a pedestal 12 and compressed-air pipes 62, 63 are connected through bores in the shaft 15 to the rams 30, 31. The structure of the rams and the connecting pipes ensures that the rams 31 carrying the outwardly diverging shoes 44 are expanded before and contracted after the rams 30 carrying the outwardly converging shoes 37. The shoes 37, 44 have copperfacings with a peripheral groove 78 which backs the joint and to which argon may be fed through a bore in the shaft 15. The tubes are supported at one end on a tail-stock (not shown) and at the other end on a mounting 25 rotatable about and adjustable along the arm 14. The shoes are moved first by low pressure air into engagement with the tubes 10, 11 and when the pressure in the supply line builds up to its maximum a switch is operated so that highpressure air can be supplied to the rams to expand the ends of the tubes 10, 11. Copper clamps 80 are secured on both sides of the joint and the tubes are welded using an argon shielded arc-welding head 24 carried by the pedestal. The shoes are retracted, after welding, by high-pressure air. Welding wire is fed to the weld by an arrangement, Fig. 6, consisting of a reel 82, feed rollers 84 and guide 86 mounted on a compound slide 100, 101 on an adjustably pivoted platform 98. The platform is mounted on a telescopic stand 88 the height of which is determined by adjustment of bolts 87. When welding is completed a ram 94 lifts and rotates the platform 98 to move the guide 86 clear of the weld.
Patent GB-247892-A (GB)
Title: Improvements in and relating to fasteners
IPC: A44B19/04
Filed: 1925-11-19
Abstract: 247,892. Freysinger, J. B. Nov. 19, 1925. Sliding-clasp fastenings of the type in which opposing rows of similar elements are brought into engagement by a slider. The elements comprise a body portion 4, Fig. 2, a neck 4<a>, and a head 14 with spaced lugs 10, which engage the neck of the opposing elements. The body 4 has a slot 5 formed with teeth 6 to secure the element to flexible stringers 1 on the edges of the article to be fastened when pressure is applied to the flange 13. The stringers are connected at one end by a plate 23 with tongues 27 embracing a lower plate. A projection 24 on the plate 23 acts as a stop for the slider. The slider 18 is formed as two plates connected by a neck 17, and the ends of a loop 19 are passed through these plates, a finger disc 20 being loosely mounted on the loop.
Patent GB-504565-A (GB)
Title: Improvements in or connected with means for attaching fabric to aircraft members
IPC: B64C3/26
Filed: 1937-10-26
Abstract: 504,565. Attaching fabric to aircraft structures. VICKERS (AVIATION), Ltd., and STEPHENSON, B. E. Oct. 26, 1937, No. 29206. [Class 4] In means for attaching, fabric to an aircraft structural member, e.g. a former rib or geodetic member, which is formed with a groove into which the fabric is depressed and held by an attachment device, the device consists of needles, the ends bf which are passed through the fabric and holes in the base of the groove, and the pointed ends of which engage the member. As shown, fabric a is attached to a member b, having a groove b<1> drilled at intervals at b<2>, by a row of needles c having cranked pointed ends c<1> and eye ends c<3> bent at right-angles. The pointed ends of the needles engage under the edges of the holes, those of. intermediate needles being passed through the eyes of adjacent needles. The last needle of the row is formed with a spring clip c<5> which expands after being passed through the hole b<2> and secures the row in position. Looking is effected by a wedge d and a strip of adhesive tape e.