baber/WOPTO huggingface dataset:
Patent GB-367550-A (GB)
Title: Improvements in screw thread caliper gauges
IPC: G01B3/40
Filed: 1931-02-11
Abstract: 367,550. Surface and outline gauges. NEW ALL ENGINEERING CO., Ltd. and SUMMERS, K. E., 8, Queensway, Ponders End, Middlesex. Feb. 11, 1931, No. 4283. [Class 106 (ii).] Relates to screw-thread calliper gauges of the kind fitted with pairs of rollers between which the screws are passed in a radial direction and consists in providing the rollers with true screw threads. Two pairs of gauge rollers b, c are mounted in the frame a in the usual manner, one pair checking the full form of the thread while the other determines whether the effective diameter is above the low limit. The rollers b, c are provided with screw threads of which those on the rollers c are cleared away at the root and truncated. The rollers are mostly of the same diameter as the screws to be gauged, but for small screws, the rollers are made two or three times as large as the screws and provided with double or treble threads to obtain the proper angle. The rollers are mounted on shafts d fitted in forks e and free to rotate about their own axes. At least one of the rollers is free to move endwise to the extent of at least half the pitch of the work to be gauged. Springs f normally hold the roller in central position.
Patent GB-817669-A (GB)
Title: Differential tachometer
IPC: G01P3/56
Filed: 1958-02-10
Abstract: 817,669. Comparison speed indicators. KE TAY Ltd. Feb. 10 1958 [May 3, 1957], No. 4297/58. Class 106 (3). For indicating the difference in speed between two members, a differential tachometer comprises a support, a first member, means mounting said first member for movement on the support, a second member, means mounting said second member for movement on the support, means carried by the first member for inducing eddy currents in the second member proportional to the relative speed of the members, and means for producing an electrical signal proportional to the magnitude of the eddy currents. The first member is a rotor 26 fixed to a rotary hollow shaft 20. The rotor comprises stacked laminations 28 each provided with eight angularly-spaced peripheral slots, the slots of the various laminations being aligned, to accommodate first and second windings each having four legs. The first winding is connected to a source of A.C. supply 66 through conductors 54, 56, brushes 58, 60, slip-rings 50, 52, conductors within the shaft 20, and conductors 46, 48. The second winding is connected through conductors 74, 76, conductors within the shaft 20, slip-rings 78, 80, brushes 82, 84 and conductors 86, 88 to terminals 90, 92. The second member is an electrically conductive cylinder 104 fixed to a rotating shaft 94, and surrounding the rotor 26. Stacked annular laminations 110 of magnetic material are disposed in an annular recess 108 in the support 10. The first winding produces a magnetic field, the flux having a path through the laminations 110 and producing eddycurrents in the cylinder 104 proportional to the relative speed of the rotor and cylinder. The eddy-currents produce a magnetic field which produces a voltage in the second winding and so at the terminals 90, 92 proportional to the relative speed.
Patent GB-1394934-A (GB)
Title: Yarn heater
IPC: D02J13/00
Filed: 1973-01-27
Abstract: 1394934 Heating Yarns; cleaning machines ERNEST SCRAGG & SONS LTD 17 Jan 1974 [27 Jan 1973] 4303/73 Heading D1F A yarn heater, as may be used to set twist in yarn(s) being false-twist crimped, comprises at one or each end of the part which provides a heating zone for the running yarn(s) an extension forming a housing for fume removal means. As shown, yarns 10 travel along grooves 11 in a heated plate 12 located in a channel provided by a casing 14 which encloses heating means such as electrical elements (not shown). The casing is formed into an integral extension 15 of similar cross-section and housing a suction chamber 17 the front wall 21 of which together with side walls 22 form an open channel for the yarns. Fumes emitted from the yarns are drawn through a slot 23 (or a row of holes or slots) into chamber 17 and withdrawn therefrom by suction (for disposal) through an exhaust pipe 24. Wall 21 is provided with condensate drainhole(s) as at 25 and ledge(s) or trap(s) as at 26. The suction may induce a flow of cooling air across the yarn.
Patent GB-858323-A (GB)
Title: Improvements in and relating to photographic developing devices
IPC: G03D9/00
Filed: 1959-02-06
Abstract: 858,323. Photographic processes. BOGER, M. F. W. Feb. 6, 1959 [Feb. 8, 1958; March 28, 1958], No. 4304/59. Class 98(2) In developing apparatus for the migratory transfer process, developer is supplied by a pump to the transfer container from a closed storage tank arranged below the container and when the pump is not working the developer drains back into the storage tank and is thus largely protected from the atmosphere. As shown, a photocopying apparatus is carried on a vertical plate 1, transfer container 6 being mounted above a contact-printer 4 which overties storage tank 10. Pump 12 is driven by an electric motor 13 and delivers developer liquid to the container 6 through pipe 11. The liquid is returned to tank 10 by over-flow pipe 14 and through a drainage aperture (Figs. 2 and 3 not shown) in the lowest part of the container. The size of the aperture is such that the liquid is pumped into the container more rapidly than it flows out. A further electric motor (Fig. 3, not shown) drives one of pressure rollers 8 and roller 20 driving bands 23. Bands 23 rotate transparent cylinder 18 containing light source 19 to effect contact-printing. In another form, Fig. 4, the developer is sprayed from delivery pipe 11 against photographic elements 33, 34 and runs out laterally from between the elements into container 5 whence it is returned to tank 10 by pipe 16. An additional roller 37 is provided and may rest loosely in apertured guide trough 6.
Patent GB-121236-A (GB)
Title: Envelopes.
Inventor: MCFARLANE EMILY HARRIET
IPC: B65D27/34
Filed: 1918-03-12
Abstract: 121,236. MeFarlane, E. H. March 12, 1918. Envelopes.-A reply envelope is opened along the single perforated line CD and the flap E turned down. The reply communication is inserted through the opening B and the flap E then sealed by means of adhesive F. Specification 1755/72 is referred to.
Patent GB-1178963-A (GB)
Title: Improvements relating to jigs
Inventor: BRISLAND WALTER JOSEPH
IPC: B23Q35/42
Filed: 1966-02-01
Abstract: 1,178,963. Drill jig; making jigs. PLESSEY CO. Ltd. 12 April, 1967 [1 Feb., 1966], No. 4445/66. Headings B3A and B3C. A jig for use with the stylus of a pantograph on a drill head, is manufactured by placing balls 1 in a layer of wax, positioned on a plate, and against side members 4, 5, bonding the balls together by Araldite (Trade Mark), and then melting the wax.
Patent GB-993608-A (GB)
Title: Improvements relating to cores for coiling wire netting or similar apertured materials
Inventor: SACKL ALOIS
IPC: B21F33/00
Filed: 1964-02-03
Abstract: 993,608. Reeling wire netting. EVG ENTWICKLUNGS - UND VERWERTUNGS G.m.b.H. Feb. 3, 1964, No. 4481/64. Heading B3E. A core for coiling wire netting, and, e.g. wire cloth, mesh and expanded metal comprises a core body having two axially extending grooves therein which have a longitudinal line of intersection which is accessible through an inlet slot in the periphery of the core, one of the grooves containing a number of pivotally mounted pawls which in their operative position project into the intersection of the two grooves to lock behind the leading edge of the netting or similar material introduced into the other groove through the inlet slot. The core comprises a cylindrical member 1, rigidly connected at one end to a shaft 2 and supported at the other by an axially or pivotally displaceable bearing, having two axially extending grooves 4, 5 displaced at 90 degrees to each other to meet at an intersection zone 6 accessible through a slot 7. The groove 4 contains a series of pawls 9, pivoted at 8, which are biased by springs 10 into their operative condition in which they project into the groove. A spring biased bar 11 is despressed to rotate the pawls so that the leading transverse wire 16 of the netting can be inserted into the groove 5 beyond the plane of the pawls which are then released to trap the wire. During removal of the coil from the core the pawls are rotated by the longitudinal wires of the netting. The pawls may have inclined surfaces 20. In an embodiment the bar 11 is dispensed with and inclined contact faces 21 produced on the front faces of the pawls to facilitate insertion of the leading transverse wire which lifts and passes under the pawls and is engaged thereby. If the inlet slot 7 does not extend to the end of the core then the coil is removed by rotating it relative to the core, after rotating the pawls, until the netting end is clear of the slot and then axially drawing the coil off the core. The pawls may also be actuated by a manual, pneumatic hydraulic. mechanical or electromagnetic control system,
Patent GB-1006929-A (GB)
Title: Improvements relating to glass-to-metal seals
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01J5/42
Filed: 1961-02-07
Abstract: <PICT:1006929/C1/1> <PICT:1006929/C1/2> A "glass to metal" seal includes a massive (defined) inner member, e.g. rod or tube and a massive outer member encircling the inner member and possessing a higher coefficient of expansion than that of the glass forming the hermetic seal between the two members and located substantially wholly within the axial length of the outer member, wherein the electrical creep path between the two members is increased by extending the glass forming the seal to cover an outwardly flared internal surface of the outer member.  In Fig. 2 the outer annular member 2 is sealed from the coaxial inner member 1 by means of glass 3 having an extended coating 4 over the inner surface of member 2. It is stated that by this means tenstile stress in regions 4 and 5 is mainly avoided. Where the glass seal is exposed to sub-atmospheric pressure it is preferable to shape the side of the seal having no adjoining extension with an annular concavity 7, which may be formed by a removable graphite mould 8.  Fig. 3 shows an outer annular member shaped with tapered inner surfaces 9, 10.  The sealing glass has extended portion 4 which is maintained in compression by shoulders 11.  The radial thickness of the outer member and in some cases the inner member is greater in the seal area.  The metal members may be of mild steel and the glass, the composition disclosed in Specification 582,353.  At the seal area the inner member may be made of the alloy described in Specification 642,668 with coefficient of expansion matching the glass seal and the outer member of low carbon steel.  The metal members may be enamelled before sealing and the seal, (for concavities up to 30 degrees from the flat) may be made using flat faced graphite moulds.
Patent GB-1459977-A (GB)
Title: Threaded fastener driving tool
IPC: B25B23/00
Filed: 1975-02-03
Abstract: 1459977 Fastener driving tools TEXTRON Inc 3 Feb 1975 [4 Feb 1974] 4569/75 Heading B3N An adapter 14, Fig. 1, for use in a threaded fastener driving assembly 10 comprising a fastener driving tool 12, the adapter and a clutch 80, Fig. 3, operable therebetween, comprises a housing 16 securable to the tool 12, a main body 18 slidable in the housing, a socket member 20 positioned in opening 88 in the main body and having a socket end 38 for engaging a fastener and a drive end 40 for engaging a part of the clutch 80, and a detent device 34 mounted in the main body and engaging in a groove 42 in the socket member 20. The arrangement is such that when the main body which may have an end ring 44 with a "non- skid" surface 56 is brought into contact with the workpiece 82 and the tool is pressed by the operator, the main body retracts into housing 16 taking with it socket member 20 which actuates clutch 80 whereupon axial movement of member 20 is halted, the detent device 34 overrides groove 42 allowing main body 18 to further retract. As shown, the detent device 34 comprises a spring loaded ball 64 in a blind chamber (62) screw threaded in body 18. Housing 16 has a slot 26 to prevent relative rotation of body and housing and to allow passage of the detent device as does an adjustment collar 46 screw threaded in the housing end. The collar determines the retraction distance of body 18 to accommodate for different lengths of fastener, the collar abutting ring 44, Fig. 5, when the fastener is driven home. Detent 34 is positionable in different holes 32 in the body 18 for the same purpose and body 18 and collar 46 have co-operating indicia 52, 54. Alternatively, ring 44 may be replaced by an end adjustment collar (79, Fig. 8, not shown) adjustably screwed on to body 18. In Figs. 2, 3 the fastener 70 carries a centralizing washer 78 which engages a shoulder 84 inside body 18. Body 18 is biased outwardly by spring 58.
Patent GB-268509-A (GB)
Title: Improved wagon-tip machine
IPC: B65G67/00
Filed: 1926-02-17
Abstract: 268,509. Ractliffe, G. H. C. Feb, 17, 1926. Arresting-grips or frictional apparatus on permanent way.-Loaded wagons from the digging- face of an excavation &c. run on to one end of a tilting runway carried on a turntable on a truck and are run by gravity to a tippler at the other end of the runway. The wagon is controlled by brakes, and the tippler can be brought to the desired position by slueing the runway and by tilting it to adjust the height of the discharge end. Angle-bars 28 extend along the runway inside the wheel tracks 25 and are moved outwards to engage the sides of the wheels by toggle-links 29 connected with a central T-bar 30. This bar is moved longitudinally by an eccentric pin on a shaft 33 mounted in-bearings 34 carried by the tilting runway. The pin is actuated through gearing from a wheel 40.
Patent GB-539549-A (GB)
Title: Improvements in or relating to the pleating of sheet material
IPC: A43D8/40
Filed: 1940-03-13
Abstract: 539,549. Pleating machines. UNITED SHOE MACHINERY CORPORATION. March 13, 1940, No. 4673. Convention date, March 14, 1939. [Class 141] Leather is pleated by passage between pleating fingers 32, 33, a hammer 23 setting the pleat and feeding the material by co-operating with a roller 11. The roller 11 is mounted in a yoke 13 and depressed by a treadle for the insertion of the work. The finger 32 is adjustable vertically by a screw 39 and angularly, a locknut 49 maintaining the angular adjustment. The finger 33 is supported by an arm 44 capable of similar adjustment. The work is held at its opposite lateral edges by the operator and fed into the V between the heel ends 35, 42 of the fingers. The hammer 23 is carried by a lever slidable longitudinally over its pivot and actuated by an eccentric at its upper end. The leather is previously marked out in lines and treated with adhesive.
Patent GB-1387474-A (GB)
Title: Link chains
IPC: A44C5/10
Filed: 1972-02-01
Abstract: 1387474 Link chains DUCHESS MFG CORP 1 Feb 1972 [3 Feb 1971] 4678/72 Heading A3H [Also in Division E2] The end links 12 of a link chain 10 for use as a bracelet, necklace, or watch-band, are detachable and comprise a twin-rod linkhalf 15 (Figure 3) and a centre link-half 14 (shown exploded in Figure 2). The rods 20 and 22 of the twin-rod linkhalf 15 are force-fitted into and permanently engage its end lugs 16 and 18. When assembled the centre link-half 14 has a closed bearing which permanently holds one of the rods 20 or 22, and a bearing 32 for the other rod operable by means of a sliding panel 28 which slides in a passageway formed by straps 40, 42, and 44 in the bottom portion 26 of the centre link-half 14. The panel 28 is held in its closed position by engagement between an abutment 48 on the panel 28 and the enclosed rod 20 or 22, and has a slot 52 to allow it to be shifted by a jeweller's pick, the straps 40 and 44 being notched at 54 and 56 to facilitate this operation. Before assembly of the link 12 and of the centre link-half 14 the tabs 36, 38, and 50 of the top portion 24 of the latter are not yet inturned (Figure 6, not shown). The top and bottom portions 24 and 26 of the centre linkhalf 14 are then assembled together with the twin-rod link-half 16 to imprison one of its rods 20 or 22 in the resulting closed bearing, the sliding panel 28 is fitted, and the tabs 36, 38, and 50 are turned in to secure the parts together and to limit the movement of the panel 28.
Patent GB-1090742-A (GB)
Title: Improvements in vacuum type electric circuit interrupters
Inventor: CROUCH DONALD WAYNE
IPC: H01H33/664
Filed: 1965-02-03
Abstract: 1,090,742. Vacuum switches. GENERAL ELECTRIC CO. Feb. 3, 1965, No. 4734/65. Heading H2B. A vacuum switch has three contact members 20, 26, 28 forming two concentric pairs of cooperating contacts which are connected in parallel and opened in sequence so that the arc is drawn between the outer contacts 20, 26 and has its lower arc root blown on to a stationary annular arc-runner 70 by the magnetic field resulting from the current through the contacts and arc flowing in a loop-shaped path. The switch is opened by moving an operating member 50 downwards and when a shoulder 58 on the member 50 engages a flange 57 on a rod 32 carrying the contact 28, the contacts 28, 20 are opened. Subsequently a flange 60 on the rod 32 abuts a bearing member 42 secured to a sleeve 30 carrying the contact 26 and the contacts 26, 20 are opened. Springs 54, 56 provide contact pressure when the contacts are closed and permit the contacts to be operated in the correct opening and closing sequence. The annular arc runner 70 may have spiral slots to cause the arc to rotate on the runner and the disc-like fixed contact 20. In a modified arrangement, Figs. 5-7 (not shown), a single moving contact member co-operates with a fixed contact and a resiliently mounted contact.
Patent GB-1446393-A (GB)
Title: Seat backrest
IPC: A47C7/28
Filed: 1974-02-01
Abstract: 1446393 Upholstered seats DAIMLER-BENZ A G 1 Feb 1974 [14 Feb 1973] 04803/74 Heading A4M A seat backrest comprises a backrest frame 1 carrying a spring core 3 treated substantially in the medial plane of the frame, a resiliently yieldable upholstery part 4 resting on the spring core 3 and over-lying forwardly projecting, bow-shaped, spring wire elements 6 secured to sides 2 of the frame, and a cover 5 which envelopes the whole assembly.
Patent GB-247985-A (GB)
Title: Improvements in and relating to means for measuring a substance carried in suspension by a second substance
IPC: G01F1/74
Filed: 1926-02-19
Abstract: 247,985. British Thomson-Houston Co., Ltd., (Assignees of Smith, A. R.). Feb. 20, 1925, [Convention date]. Measuring feed of granular materials. - A method of and means for measuring the quantity of a substance carried in suspension by a second substance, e.g. the amount of powdered coal supplied to a furnace by an air stream, consists in providing flow measuring devices for producing effects proportional to the flow before and after mixing and means for measuring the difference between the two effects. As shown for measuring powdered coal supplied to a furnace 1 through a burner 2. Fig. 1. an air supply is passed through a conduit 3 containing a pressure difference creating device 7, Fig. 2, and the flow is measured by a pressure responsive device 8 such as described in Specification 214,632, [Class 69 (i), Hydraulic apparatus &c.], wherein a flow of electric current is created proportional to the pressure difference. The powdered coal is fed through a conduit 4 from a hopper 5 by means of a feed screw or other rate-controlled device 6. The mixture is passed through a second pressure difference creating device 16 and the flow measured by a pressure responive device 17 similar to that above described. The devices 8, 17 are connected to a source of alternating current 14 and to the windings of solenoids 15, 21 respectively, the cores of which are connected to a beam 24 carrying an indicating point 26 co-operating with a scale 27 which may be calibrated directly in terms of pounds of coal. Measuring instruments 28 may be provided in circuit wires 20 to measure the rate of flow of the air in the conduit 3.
Patent GB-695899-A (GB)
Title: Licence plate for vehicles
IPC: G09F7/02
Filed: 1951-02-28
Abstract: 695,899. Luminescent materials and applications thereof. BEVACQUA, A. Feb. 28, 1951 [Feb. 28, 1950], No. 4887/51. Class 39(i) [Also in Group XVIII] A licence plate for a vehicle comprise! a box 3 having a transparent front plate 5 and elements 2 bearing symbols which elements engage a grooved frame 1 behind the plate 5, a source of light 6 being located in the box behind the ele ments 2, the elements 2 having an opaque background and phosphorescent reflex reflecting transparent or translucent sym bols. The elements 2 are slidably moun ted in two rows in the grooves in the frame 1, the rear of which is a reflecting plate 4. The lamps 6 are' mounted between the elements 2 and in front of the reflecting plate 4 to rear illuminate the symbols. The front plate 5 in addition to being transparent may also be reflex reflecting. The elements 2 are inserted in the frame 1 from one side, the side being slidably detachable for this purpose.
Patent GB-1018511-A (GB)
Title: A back-pressure filler for beer or the like
IPC: B67C3/22
Filed: 1963-02-06
Abstract: 1,018,511. Container filling machine. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. Feb. 6, 1963 [Feb. 20, 1962], No. 4925/63. Heading B8T. A back pressure filler has annular gas and liquid passages 13 and 8 connected by pipes 20, and the gas passage is provided with a gas valve 14 and pipe 15 leading to a filling element 10. The liquid and gas passages are connected with the liquid and gas in a reservoir 2 by pipes 9, and 16, 17 respectively. A container to be filled is introduced to the filling element 10, and is charged with gas via valve 14, pipe 15, and filling pipe 11, which comprises a gas 'pipe disposed within a liquid pipe, until the pressure in the container is equal to that in the liquid passage. The filling element 10 then opens automatically to allow liquid to enter the container. The waste gas is forced back into the gas passage, and excess gas passes via filter valve 19 into the float reservoir. The flow of gas through inlet and outlet valves 5 and pipes 27, 6 respectively is controlled by a float 4. In a second embodiment the introduction and escape of gas to and from the gas passage is governed by diaphragm valves 22, 23 (Fig. 2, not shown). In this embodiment there is no reservoir, but the liquid is conducted from the supply pipe 3 via a distributer member 21.