baber/WOPTO huggingface dataset:
Patent GB-1407853-A (GB)
Title: Method of and apparatus for induction heating a workpiece
Inventor: NESTEROK P
IPC: C21D9/02
Filed: 1972-11-20
Abstract: 1407853 Inductive heating ELPHIAC SA and HOCHFREQUENZWARME SCHMIDT & CO GES FUR INDUKTION SANLAGEN mbH 20 Nov 1972 [20 Nov 1971] 53527/72 Heading H5H The inductor 4 mounted on guide rod 6 and medium frequency transformer 3 are mounted swivellably via a transformer bracket 2 on a pinion 10 on a hardening carriage 1 which moves longitudinally along rail 14 so that the inductor may follow a curved path along a workpiece, e.g. an anti-roll bar 18 in response to control signals generated from limit switches b. The pinion engages a rack 8 which may be driven via a fixed nut 7 from a threaded shaft 15. A brake 13 on the carriage and an electromagnetic brake 12 on the pinion allow either to be driven via the nut (or both together with suitable part braking) a quenching spray 5 may be secured to the guide rod 6 and operate either as the carriage advances to 13 or on its return to A or both. The workpiece is retained in a second carriage 22 movable sideways with respect to rail 14 by collets 21, 21a and members 19 which individually swivel clear of the workpiece as the inductor passes. The shaft 15 may be driven at two speeds; one for swivelling; one for travel.
Patent GB-1095890-A (GB)
Title: Diffusers for annealing furnaces
IPC: C21D9/673
Filed: 1965-12-16
Abstract: 1,095,890. Circulating furnace atmospheres. SKODA OBOROVY PODNIK PLZEN. Dec. 16, 1965 [Dec. 16, 1964], No. 53555/65. Heading F4B. In a diffuser for an annealing furnace, removable guide vanes 3, which surround a fan, are held in position by a shoulder 10, anchored between welded guides 4, 4<SP>1</SP>, and a fixed peg 5 which engages a recess (6) in the underside of the vane. An eye (13), provided for engagement by a lifting device, is formed in a strengthening web (11) separating two weightreducing spaces (12), (12<SP>1</SP>) in each vane. Flow dividers 19, fixen to the outer wall 16, are placed between adjacent vanes 3.
Patent GB-1293954-A (GB)
Title: Method of and means for connecting sleeves to reinforcing bars
IPC: B21D39/04
Filed: 1969-11-03
Abstract: 1293954 Jointing by forging ED ZUBLIN AG 3 Nov 1969 [2 Nov 1968] 53705/69 Heading B3H [Also in Division F2] A sleeve 10 is connected to a finned concretereinforcing bar 17 of harder material than the sleeve by successively compressing adjacent sections of the sleeve to cause it to interlock around the fins on the bar. As shown an apparatus comprises a cylinder 1 having at one end a cover 2 which may be detachable and at the other end opposed axially directed slots 9 to receive the sleeve, a die 7 being inserted (e.g. by bayonet action) in the open end of the cylinder after location of the sleeve in the slots. An upper die 6 is acted upon by a piston 3 when fluid is admitted to the cylinder via port 16, the piston being retained by spring 14. In order to accurately locate the apparatus for successive compression of adjacent sleeve sections a guage 25 of U-shaped cross-section is secured to bar 18 and a hinged pawl 27 is engaged in the successive slots 30 therein. In order to obtain uniform compression of the sleeve each section may be compressed in at least two radial directions. This may be done by compressing the sleeve from end to end in one radial direction and then recompressing from end to end in a further radial direction, or may be done by compressing each section in more than one direction before progressing to the next section, the directions preferably being at right angles to each other. It is preferred to compress the sleeve sections between the ends to a greater degree than the section adjacent the ends, and the extreme ends of the sleeve may be left uncompressed by conically widening the sleeve ends (Fig. 5, not shown). The ends of the compressing dies 6, 7 are also widened to this end. The apparatus and method may be be applied to joining two bars together (e.g. as in Figs. 1, (5) and 15) or may be used to secure anchoring pieces to the bars. The anchoring piece may be a plain sleeve or may be belled at one end (e.g. as 102, Fig. 9). Alternatively the anchoring piece may be a loose fit on the bar and may abut a sleeve secured by the method of the invention. Two bars may be joined by welding the belled ends of anchoring pieces secured thereto (Fig. 13, not shown).
Patent GB-1201929-A (GB)
Title: Improvements relating to metal-metal bonding
Inventor: CERESA RAYMOND JOHN
IPC: F16B11/00
Filed: 1966-11-24
Abstract: 1,201,929. Heat-curable adhesives. W. R. GRACE & CO. 24 Nov., 1967 [24 Nov., 1966], No. 53707/67. Heading C3P. [Also in Division B3] A heat curable adhesive for bonding metals comprises 100 weight parts of a copolymer of ethylene with acrylic or methacrylic acid, 3 weight parts of p-quinone dioxime dibenzoate and 45 weight parts of titanium dioxide.
Patent GB-1368814-A (GB)
Title: Portable grinding apparatus
IPC: B24B55/10
Filed: 1971-11-19
Abstract: 1368814 Abrading FESTO-MASCHINENFABRIK GOTTLIEB STOLL 19 Nov 1971 [21 Nov 1970] 53734/71 Heading B3D A portable grinder comprises a plate 3 arranged to be oscillated or reciprocated by a motor within a housing 2 and releasably supporting, e.g. abrasive paper 5, and means for removing abraded dust, including a hollow space 11 within the plate 3 connected to suction means (not shown) and passages 13, 13<SP>1</SP> through the plate 3, the abrasive paper 5 having apertures 12 arranged to correspond with the passages 13, 13<SP>1</SP>. The plate 3 includes a rigid part 15 supporting resilient material 41, e.g. rubber or plastics, and the suction is applied through an opening 14, the plate 3 including surface grooves 43 communicating with the atmosphere at the periphery of the plate 3. A flexible suction line may lead directly from the opening 14 to the suction source, e.g. a vacuum cleaner, or a suction line 26, Fig. 1, may be attached to a member 36 screwed to the housing 2 and connected to the opening 14 by a flexible tube 28. A flexible rubber seal 18 protects the plate driving mechanism from dust, and clamping members 6 allow quick release of the abrasive paper 5.
Patent GB-1125470-A (GB)
Title: Improvements relating to liquid receptacles
IPC: A47L11/162
Filed: 1965-12-20
Abstract: 1,125,470. Reservoir brushes. HOOVER Ltd. 20 Dec., 1965 [28 Dec., 1964], No. 53843/65. Heading A4K. In a liquid supply arrangement for a rotary upholstery shampooing brush, a connector for an electrical supply cable 3, for the brush motor, is held on tank 1 by anchor plate 18, secured by locking rings 27, screwed on to the tank neck. Lever 6 controls a liquid supply pump and foam is supplied, to brush 5, by a foam generator, in unit 2. The tank may be blow moulded from polyethylene.
Patent GB-1065000-A (GB)
Title: An improved meshing screw pump
Inventor: POLLAK FREDERICK
IPC: F04C14/12
Filed: 1965-12-21
Abstract: 1,065,000. Rotary pumps. STOTHERT & PITT Ltd. Dec. 21, 1965, No.54078/65. Heading F1F In a rotary pump of the meshing-screw type, which has a pair of screws (7, 8) Figs. 1 to 3 (not shown), with threads of non-uniform pitch, the rate of liquid displacement depends upon the position of a movable sleeve-element (13) relative to a fixed sleeve-element (11) situated adjacent an outlet (10) for the liquid. The pitch of the threads is diminished progressively towards the ends of the screws which lie adjacent an inlet (9) for the liquid, and to minimize cavitation in the liquid the axial length of the element (11) is such that it spans a minimum number e.g. two, of thread-pitches necessary to effect a pumping action when said element lies adjacent the inlet (9). The fixed element (11) serves to virtually augment the axial length of the element (13) when the latter lies adjacent thereto, so as to ensure a pumping action, owing to the greater threadpitch at the output end of the screws. The element (13) is moved by rotation e.g. manually, of a wheel (22) on a screw-threaded rod (21), which engages with a nut at one end of a further rod (14) whose other end is attached to said element. The rod (14) carries a piston (18) which is lodged in a cylinder (19) connected at one end to the high-pressure side (H) of the pump through a bore (34) containing the rod (14) and at the other end to the low-pressure side (L) of the pump through a pipe (35) so as to minimize the axial force required to move the element (13). A pressure-relief aperture or "weep hole" (23) is provided in the element (11) to prevent damage due to liquid being trapped between the elements. Noise due to cavitation in spaces or chambers defined by the portions of the threads lying within the element (13) may be minimized by a spooltype valve-member (29), Figs. 4 and 5 (not shown), lodged in the rod (14) which is moved to allow liquid to flow back from the high-pressure side of the element (13) into said chambers when the element is situated at the inlet end of the screws. Normally, the member (29) is held by a spring (32) in a position, according to Fig. 4, wherein it closes a pair of transverse passages (31) in a portion of the rod (14) lying on the high-pressure side of the element (13). When said element approaches the inlet end of the screws, the valve is moved against the action of the spring (32), to open the passages (31), by a plunger (30) abutting a portion of the casing (1). Liquid flowing from the passages (31) enters said spaces or chambers through a bore in the rod (14) wherein the member (29) is lodged, further transverse passages (33) in said rod, and a passage (26, 27) in said element. The pump may be modified to include either a single inlet and two outlets, or a single outlet and two inlets, as described in Specification 890, 507.
Patent GB-1235365-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M59/00
Filed: 1968-11-14
Abstract: 1,235,365. Reciprocating pumps. ROBERT BOSCH G.m.b.H. Nov.14, 1968 [Nov.14, 1967], No. 54093/68. Heading F1A. In a fuel injection pump comprising a pumping cylinder 2 clamped against the aluminium alloy pump housing 1 by means of an injection fitting 8 and a pressure valve body 11, a resilient compensating sleeve 13 compressed between the fitting 8 and body 11 absorbs relative movement of the parts caused by temperature or pressure fluctuation. A tapered end face 14 of the sleeve abuts a tapered inner shoulder 15 of the fitting 8, the taper of the shoulder 15 being greater than that of the sleeve so as to form a pressure light seal. The fitting 8 is screwed into the housing urging the valve body against the cylinder 2 by way of the sleeve 13, thus pressing a shoulder 3 of the cylinder against the housing. A closure member 18 of the valve is pressed against its seating 19 in the body 11 by a spring 17 disposed between the member and sleeve. The fitting 8, cylinder 2, and valve body 11 are made of steel, and sleeve 10 of a material having a thermal co-efficient of expansion such that it can compensate for differences in expansion between the housing and other parts.
Patent GB-1160689-A (GB)
Title: Improvements in or relating to Vegetation Cutting Machines
Inventor: HAST PER SIGVARD
IPC: A01D34/02
Filed: 1966-12-06
Abstract: 1,160,689. Mowing machines. P. S. HAST. 6 Dec., 1966 [10 Dec., 1965], No. 54472/66. Heading A1F. In a vegetation-cutter having relatively reciprocable blades 1, 2, the teeth 3 of the moving blade 1 project beyond the teeth 4 of the fixed blade 2 and both sets of teeth increase in width towards their free ends so that stalks tend to become trapped by the blades during cutting. The fixed blade is double and comprises two identical blades 7, 8 spaced apart by a bar 10 slightly wider than the moving blade 1 which freely slides between the fixed blades. The recesses 5 between the teeth 3 are arcuate and larger than a semi-circle. The recesses 9 between the fixed teeth are of the same maximum width as those between the moving teeth but are shallower. The moving teeth have chamfered edges adjacent to the recesses 5. In a modification, the forward edges of the teeth 3 are rounded to avoid danger from the sharp cusps on the teeth 3.
Patent GB-1376498-A (GB)
Title: Hydraulic power control device
IPC: B60T13/14
Filed: 1972-11-30
Abstract: 1376498 Fluid-pressure servomotor systems SOC ANON DBA 30 Nov 1972 [24 Dec 1971] 55366/72 Heading G3P [Also in Division F2] An hydraulic booster for a master cylinder comprises a piston 20 connected by a push-rod to the master cylinder input piston the piston 20 being operable by pressure introduced into a chamber 48 or in the event of pressure failure directly by an input rod 72; during pressure operation, movement of the input rod 72 actuates a valve spool 36 via a lever means 50 to connect an accumulator to the chamber 48, the lever means 50 comprising an arm 52 and a feeler member 54 connected to the arm 52 by a movable pivot 64. In the embodiment of Fig.1 the arm 52 is bowshaped and has a hook 61 at its upper end 60 cooperating with an axle 62 secured to the booster housing and the lower end 68 presents a resilient portion abutting a projection 70 provided on a forked head 71 of the rod 72. The feeler member 54 is located between lugs 58 on the arm 52 and has cam surfaces 66 at either end engaging the valve spool 36 and piston 20 respectively. The valve spool 36 is slidably mounted in a sleeve 34 fixed in a bore 18 by the axle 62 and one end of the sleeve 34 is closed by a sealing ball 38 supporting a spring 40 which urges spool 36 rightwards. The bore 18 is connected by an orifice 28 with a high-pressure source, viz an accumular, and by an orifice 30 with a reservoir. In the rest position, as shown, chamber 48 is isolated from the accumulator and the reservoir but when rod 72 is operated by a pedal, arm 52 is rotated clockwise to displace pivot 64 and urge cam surfaces 66 against piston 20 and spool 36. Feeler member 54 takes support on piston 20 and is rotated counter-clockwise so that spool 36 moves to connect chamber 48 with the accumulator via an orifice 82 in the sleeve 34; pressure in chamber 48 moves piston 20 to actuate the master cylinder and provides reaction feel on rod 72 until a balanced position is attained. Upon release of the brake pedal, rod 72 moves rightwards until a flange 78 engages a plug 74, arm 52 rotates counter-clockwise about axle 62 and feeler member 54 moves rearwardly to cause displacement of spool 36 rightwardly to connect chamber 48 with the reservoir.  Should accumulator pressure fail the rod 72 may directly engage piston 20 with rotation of feeler member 54 and should spool 36 be jammed in its bore the resilient portion of end 60 of arm 52 is bent. In the embodiment of Fig.2 the arm 152 is pivotably secured to an axle 162 slidably mounted in a forked end 180 of the sleeve 134 and the axle 162 is urged by a spring 182 to its illustrated rest position. The arm 152 comprises two plates secured by ends 168 and having hooks 161 at ends 160. If spool 136 jams in sleeve 134 the axle 162 slides in forked end 180 towards a plug 176. Reference has been directed by the Comptroller to Specification 1105351.
Patent GB-1127910-A (GB)
Title: Junction member for the connection of waveguides having different cross-sectional shapes
IPC: H01P5/08
Filed: 1965-12-31
Abstract: 1,127,910. Impedance matching. TELEFUN. KEN PATENTVERWERTUNGS, G.m.b.H. 31 Dec., 1965 [25 Feb., 1965], No. 55397/65. Heading H1W. An elliptical, corrugated, flexible waveguide is joined to a rectangular waveguide by means of a junction member of generally rectangular cross-section, thus cross-section being modified at the end 1 intended to abut the elliptical guide by symmetrical enlargements of part conical form in the wide walls of the rectangular transition. The length of these enlargements is preferably three-quarters of a guide wavelength and the angle of taper α preferably lies between 2 degrees and 12 degrees. The mismatch at the junction between the transition and the elliptical waveguide is compensated by an adjustable screw 2 and either one or two further screws 4 or 3, 5. The cross-section of the elliptical guide at the junction may be reduced by the insertion of an iris.
Patent GB-1292069-A (GB)
Title: A composite tube for the pressure vessel of a nuclear reactor and a method of producing an assembly of such a tube and a cover of such a pressure vessel
IPC: G21C13/032
Filed: 1970-11-20
Abstract: 1292069 Making composite metal tubes and pressure vessels SIEMENS AG 20 Nov 1970 [22 Nov 1969] 55412/70 Heading B3A [Also in Divisions F2 and G6] A composite tube 4, having an austenitic steel lining 6, is fitted in an aperture of a nuclear reactor pressure vessel 1 to permit the insertion of instruments into the vessel. As shown, the lining 6, which is of smaller average thickness than an outer ferritic steel tube 5, is joined to an austenitic steel ring 12 also joined to the portion 5. The ring 12 is welded to an austenitic steel lining 11 in the vessel aperture to form a fluid-tight seal 13. A further lining 9 in the pressure vessel may also be of austenitic steel. The tube has a threaded portion 7 which screws into the aperture of the vessel 1, prior to the welding process. A flange portion 3 of the tube may be of a single material. In another embodiment, the end of the tube lies substantially flush with the concave inner surface of the pressure vessel, a fluid-tight seal being effected by welding the austenitic steel ring (14) (Fig. 3, not shown) directly to the vessel lining 9. The composite tube may be assembled and machined remote from the cover of the pressure vessel.
Patent GB-1488149-A (GB)
Title: Magnetic memories
IPC: G11B5/60
Filed: 1974-12-23
Abstract: 1488149 Supporting magnetic heads SPERRY RAND CORP 23 Dec 1974 [26 Dec 1973] 55417/74 Heading G5R A flying head 11 is mounted with a chamber 23 near the free end of a flexible strip 10 cantilevered from a shaft 9 which is rotated to bring the head 11 near a record surface 14, the head then being drawn into a closer operating position by withdrawal of air from the chamber 23. Air may be fed into the chamber 23 to push the head away from the record surface 14.
Patent GB-1122932-A (GB)
Title: Improvements in steam autoclaves
IPC: A61L2/24
Filed: 1966-12-13
Abstract: 1,122,932. Steam autoclave. F. UNDER. 13 Dec., 1966 [4 March, 1966], No. 55673/66. Heading A5G. A steam autoclave, wherein the pressure is automatically caused to fluctuate rapidly until all the air is expelled, comprises a chamber I connected to a thermostatically controlled steam generator 3 by conduit 2, a closing tank 5 connected to the steam generator via conduit 7 and solenoid-operated valve 6 and to the water storage tank 12 via one branch of a solenoid-operated 3-way valve 10 (the other two branches of which connect the chamber 1 and the dosing tank 5). The chamber 1 is also connected to the tank 12 via a conduit 15 and a selector valve 19 (which passes air and water 'but not steam). This conduit also contains a thermometer 16, a thermostat 17 and pressure switch 18, which are used to control the process. In operation, valve 6 opens and valve 10 connects chamber 1 and tank 5, the path between tanks 5 and 12 via conduit 13, 14 being closed. Steam passes from the generator to the autoclave chamber and any condensed steam flows back to tank 5 via conduit 9 &c., whilst air is expelled via conduit 15. When most of the air has been expelled, the selector valve 19 closes automatically and pressure rises rapidly in the chamber 1, due to consequent increase in pressure in tank 5 and faster supply of water to the steam generator. When the pressure reaches a predetermined value, pressure switch 18 operates to close valve 6 and to cause valve 10 to connect tanks 12 and 5 and disconnect chamber 1 and tank 5. Air residues oresent in chamber 1 then pass to valve 19 and cause it to open whereupon pressure drops, the pressure switch operates to reverse valves 6 and 10 and the cycle is repeated until no air is present. The system then remains sealed until the operating temperature is sensed by the thermostat 17, Which then operates to close valve 6 and reverse the position of valve 10 so that connection between chamber 1 and conduit 13 is interrupted. If the temperature drops, the thermostat operates to cause more water to enter the generator and thus to raise the temperature and this process is continued until a timer indicates that sterilization time has been achieved. The current to thermostat 17 and pressure switch 18 is then interrupted so that valve 10 moves to the position in which connection exists between conduits 11 and 13, but not between conduits 9 and 11. Pressure then drops in chamber 1 until equilibrium pressure is reached, when the one-way valve 24 allows water to pass from tank 12 to tank 5 and the apparatus is ready for further use.
Patent GB-1353575-A (GB)
Title: Toothpaste tubes and similar tubular containers and methods for their manufacture
IPC: B65D35/12
Filed: 1972-12-13
Abstract: 1353575 Seaming non-metallic sheet material MILPRINT Inc 13 Dec 1972 [27 Dec 1971] 57459/72 Heading B5K [Also in Division B8] The radially-extending flange 7 of a plastics end member 3 having an annular skirt 6 located within the end of a collapsible tube body 2, is thermally reformed to axially overlie the body end. The end member and body are supported on a mandrel 20, and the flange deformed by an electrically-heated upwardly-movable annular die 22. The body end is heat-sealed to either the skirt at 15 as shown, to the reformed flange at 39, Fig. 16 (not shown), or to both skirt and flange. The end member may be of polyethylene or of nylon with a polyethylene or ethylene vinyl acetate copolymer skirt. The tube body may comprise an inner ply 10 of polyethylene or ethylene vinyl acetate polymer, a middle ply 11 of nylon or aluminium foil, and an outer ply 12, for example, of paper. Various longitudinal internal-fin, external fin, or lap body heatsealed seams are described, Figs. 12-15a (not shown) formed from flexible sheets having heatsealable interiors and/or exteriors.
Patent GB-1444786-A (GB)
IPC: H02K17/16
Filed: 1973-12-14
Abstract: 1444786 Squirrel-cage constructions ALLMANNA SVENSKA ELEKTRISKA AB 14 Dec 1973 [19 Dec 1972] 57961/73 Heading H2A In a squirrel-cage asynchronous machine, having a laminated stator 1 with a winding 4 and a rotor core 2 of iron-silicon alloy sheet metal laminations, the squirrel-cage shorting rings 7, 8 are made of iron substantially free of silicon and are the same shape as the rotor laminations. The end-rings are joined to the conductor bars 5 by silver solder and hold the rotor lamination pack in tension when the machine is cold. The end-rings 7, 8 are preferably laminated and this particular construction affords a higher starting torque for lower stator current (Fig. 2, not shown). Also, the laminated end-rings allow expansion of the conductor bars 5 when running without causing undue forces leading to fracture. Cooling ducts 6, 9 are provided in both rotor and stator.
Patent GB-1149820-A (GB)
Title: Internal-combustion engine throttle valve control device
Inventor: COMMENT PAUL
IPC: B60K26/02
Filed: 1967-12-22
Abstract: 1,149,820. Setting and retaining devices. P. COMMENT. 22 Dec., 1967 [22 Dec., 1966; 23 Feb., 1967; 28 Nov., 1967], No. 58518/67. Heading B7H. [Also in Division F1] A throttle valve normally operated by an accelerator pedal may be moved to a desired position by a hand-operating means 7 and held therein by clamp means operated by an electromagnet 61. In Fig. 2 handle 7 is connected to a rotatable member 3 which is connected by a cord to the throttle operating linkage. Electromagnet 61 when energized moves rod 62 carrying disc 51 to the right to clamp friction disc 54 against the disc 32 and hold it in its selected position. The circuit of electromagnet 61 includes a switch 81 closed when disc 32 is in its released position, a switch (74), Fig. 1 (not shown), opened when the handle 7 is grasped, and switches 82, 83, Fig. 3, opened when the clutch and brake pedals are operated. The member 7 may be connected by a cable to the member 3.