baber/WOPTO huggingface dataset:
Patent GB-1234520-A (GB)
IPC: H01R13/58
Filed: 1969-05-14
Abstract: 1,234,520. Clips. INTERNATIONAL STANDARD ELECTRIC CORP. 14 May, 1969 [22 May, 1968], No. 24546/69. Heading E2B. [Also in Division H2] A clip comprises a sheet metal plate 44 having terminal projection 56 which are engageable in a pair of spaced slots 42 in a housing 10, the slots being spaced apart and distance slightly greater than the distance between the projections so that when one of the projections is engaged in one of the slots and pressure is applied to the plate the other projection engages in the other slot thereby secur. ing the plate to the housing. The plate includes a cable clamping portion 50 with a split cylindrical portion 54 which is bolted to clamp the cables 32 together.
Patent GB-1234612-A (GB)
IPC: G01N25/50
Filed: 1968-06-21
Abstract: 1,234,612. Combustibility of vegetable material. SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES. 21 June, 1968 [22 June, 1967], No. 29827/68. Heading B1X. A process for measuring the combustibility of tobacco or other similar combustible vegetable material comprises calcinating said tobacco or other material and determining the hydrosoluble alkalinity of the ashes so obtained, preferably by use of test papers produced by immersing a filter paper in 0.2% by weight congo red solution followed by immersion in a 0.2% by weight solution of bromocresol purple in acetic acid and water.
Patent GB-1238813-A (GB)
IPC: B65H75/40
Filed: 1970-03-13
Abstract: 1,238,813. Portable cable reels. G. SALOMON. 13 March, 1970 [17 March, 1969], No. 12194/70. Heading B8M. A portable reel comprises a pair of blocks 20, 22 fastened together and having a number of pairs of openings extending inwards from their outer edges, a reel handle 8 having one end held in one pair 26 of the openings, a pair of reel legs one end of each of which is held in another pair of the openings, fasteners 24 e.g. bolts, passing through the blocks 20, 22 and through the ends of the legs for securing them together, a drum axle 36 rotatably supported by the blocks, and a drum 2 mounted on the axle. The drum 2 is formed from two identical sections 14, 16 each having a central tubular portion 44 which is provided at the meeting edge with a radially outer rib 46 extending over one half of the circumference and a radially inner rib 48 over the remainder of the circumference, the ribs mating when the two sections are brought together. The two sections 14, 16 of the drum are held together by bolts 18. The drum is also provided with an inner tubular portion 42 having a non-circular bore in which a complementary shaped end 36<SP>1</SP> of the axle 36 is located. The other end of the axle 36 is located in a bore 32 in the block 22 and has an enlarged head 38 located in a rebate 34 in the bore 32. The drum 2 is held on the axle 36 by means of a split pin 54. The outer block 20 also has an axial bore in which a threaded bolt 50 is located, the end of which bears against the enlarged head 38 of the axle to apply a frictional drag resisting or stopping rotation of the drum. A handle 58 may be provided to rotate the drum to rewind cable or hose. If cable is wound on the drum, a plate 10 with electrical sockets on it may be provided. The capacity of the drum may be extended by interposing a tubular element between the sections 14 and 16 of the drum, the tubular element having suitably ribbed ends. The drum 2, blocks 20, 22 and axle 36 are preferably made from plastics material, the handle 8 and reel legs being made from tubular metal with plastics material end sheaths 60, 66.
Patent GB-1250093-A (GB)
IPC: G01N33/52
Filed: 1969-04-03
Abstract: 1,250,093. Testing whole blood samples. CHUGAI SEIYAKU K.K. 3 April, 1969 [4 April, 1968], No. 17670/69. Heading B1X. A diagnostic paper for testing a whole blood sample comprises (a) a diagnostic reagent and (b) in at least those regions of the paper containing the diagnostic reagent one or more or cholesterol, rosin, and an ester of either of these. The paper may contain from 0.5 to 2.5 mgm. component (b) per square centimetre of the paper, and may be prepared by contacting a paper containing a diagnostic reagent with 1 to 10 wt. % organic solvent solution of component (b) and drying the paper. Examples relate to a urea nitrogen determining strips comprising ion exchange resin paper treated with p dimethylamino cinnamaldehyde and then with a solution of cholesterol 5% in chloroform of gum rosin 4% in ethanol or of ester gum (glycerin ester of rosin), 2.5% in ethanol; and to a known serum cholinesterase -determining paper treated with cholesterol palmitate and acetate (1:2) 3.5% in carbon tetrachloride or with cholesterol benzoate 3% in carbon tetrachloride. Other components (b) include methyl abietate and the diethylene glycol esters of abietic acid and of 2-hydroabietic acid.
Patent GB-1250176-A (GB)
IPC: G03G5/082
Filed: 1968-10-07
Abstract: 1,250,176. Luminescent materials and uses thereof. RANK XEROX Ltd. 7 Oct., 1968 [10 Oct., 1967], No. 47384/68. Addition to 1,193,161. Heading C4S. [Also in Divisions C1, C7 and H1] Semi-conductor elements according to Claim 1 of Specification 1,193,161 have bismuth as the metal component and selenium as the non- metal component, the bismuth content being either in the range 0À5-3À0 atomic per cent or in the range 11-18 at. per cent. The elements are especially useful in electrophotography. They may also be used in infra-red photodetection, in vidicons, light amplifier panels, and electroluminescent devices.
Patent GB-1251646-A (GB)
IPC: D04B15/74
Filed: 1968-02-10
Abstract: 1,251,646. Knitting-machines. BENTLEY MACHINE DEVELOPMENT CO. Ltd. 4 Feb., 1969 [10 Feb., 1968], No. 6724/68. Heading D1C. A pattern mechanism for a circular machine comprises a drum 11 whose action upon selectors 12 may be bluffed by drum 15 or drum sector. The drum 11 comprises a series of discs 11a whose projections co-operate with one end 12c of the pivoted selectors to force them to an inoperative position. Operative selectors co-operate with jack butts set out at corresponding level. The drum is continuously driven by a gear chain from the cylinder. The bluffing drum 15 carries bars 14 extending past the number of selectors to be bluffed and co-operating with the end of arm 12b. The drum is racked by a pawl 17 pivoted to an arm 19 rocked by eccentric 21. The ratchet 16 may be bluffed by a ring 22 at the dictates of the main pattern means. An intermediate step 22c on the ring permits rotation of the drum until the pawl engages a low ratchet tooth.
Patent GB-1252301-A (GB)
IPC: H04N5/10
Filed: 1969-02-05
Abstract: 1,252,301. Television synchronizing; automatic frequency control. HEWLETT PACKARD CO. 5 Feb., 1969 [7 March, 1968], No. 6252/69. Headings H3A and H4F. A synchronizing system for a television receiver having interlaced scanning comprises a voltage controlled oscillator 24 producing a periodic timing signal having a repetition rate equal to twice that of the horizontal sync. pulses of the composite sync. signal separated 22 from the received composite video signal at input 18. The timing signal is halved by a binary sealer 26 and horizontal sync. signals are produced from the leading edges of the pulse signal by differentiating and clipping circuits included in the output stage of sealer 26, these signals being fed to horizontal deflection circuit 28 which energizes deflection coils 14. Oscillator 24 is phaselocked to the composite sync. signal by an automatic phase control feedback circuit 30 which includes a ramp generator 32 connected between the output of horizontal deflection circuit 28 and one input of a phase comparator 33, the other input of which receives a horizontal sync. pulse signal from a blocking oscillator 34. The resulting control voltage from comparator 33, which may comprise a sampling gate, is fed via a low pass filter to phase lock the oscillator 24 to the composite sync. signal and to maintain the repetition rate of the timing signal. A Schmitt Trigger 38 regenerates vertical sync. pulses from the output of a low pass filter 36 which are fed as a control input to open gate 40, and the first pulse of each gated portion of the timing signal from oscillator 24 triggers the vertical deflection circuit 42.
Patent GB-1252326-A (GB)
IPC: B65H75/28
Filed: 1969-04-08
Abstract: 1,252,326. Winding webs. INTERNATIONAL BUSINESS MACHINES CORP. 8 April, 1969 [9 April, 1968], No. 17997/69. Heading B8R. A reel 11 which is to carry a web 12, e.g. of paper, plastics or metal foil, is provided with a recess 13 extending over the full width of the reel; the inner end of the web 12 is folded back on itself to form a loop 15 which is received by the recess 13, and the folded-back portion 16 is coiled round the reel 11 together with the rest of the web. Thus, when the web 12 is unwound from the reel the trailing end is exposed, e.g. as shown at 19 or 19<SP>1</SP>, before the unwinding is complete, and this end is fed to a joining station for uniting with the leading end of a new web without interrupting the unwinding process (Fig. 3, not shown). The recess preferably has an S-shaped deflection surface as shown, and may be partly defined by a hinged portion of the body (Fig. 2, not shown).
Patent GB-1252489-A (GB)
IPC: A47B19/06
Filed: 1969-06-14
Abstract: 1,252,489. Foldable tables. R. V. MACKAY. June 8, 1970 [June 14, 1969], No.30263/69. Heading A4H. A lectern comprises a base 10, an upper assembly 11 including an inclined top 12, and three pairs of hinged support members 13, (14), 15, front members 13 being respectively hinged at 16 and 17 to the base 10 and upper assembly 11 and mutually hinged at 18, and the side members (14), 15 being hinged at (20, 21), 23, 24 to the base and upper assembly and mutually hinged at (22), 25. The top 12 can be lowered from the raised position as shown by folding members 13 outwardly and members (14), 15 inwardly on the base 10 see Fig. 1 (not shown). A tension spring (26), Fig. 7 (not shown) connected between upper member 13 and top 12 biases members 13 to the extended position. Strips (33) Fig. 8 (not shown) on upper member 13 co-operate with strips (29) on upper members (14), 15 during raising of the top 12 to transmit rotation of members 13 to members (14), 15. The lectern may include a single pair of central side members. The invention may be applied to a caravan table where a section of floor can be raised to table height.
Patent GB-1256939-A (GB)
IPC: B29D30/38
Filed: 1969-05-16
Abstract: 1,256,939. Folding fabric sheets. UNIROYAL A.G. 16 May, 1969 [25 May, 1968], No. 25087/69. Heading D1S. Apparatus for folding a fabric strip 28 comprises a supporting table for the strip 28, a pair of carrier rollers 11 protruding through apertures in the table for contacting the underside of the strip, a pair of shaping rollers 19 disposed above the table, means for rotating the rollers 11, 19 in a direction such that the strip 28 is forced between and folded by the rollers 19, and a folding aid 10 capable of acting on the underside of the strip 28 and located between the rollers 11 to direct the strip towards the rollers 19 on rotation of the rollers 11, 19. The apparatus comprises a frame 2 pivoted at 3 to a base 1 and supported by two lifting cylinders 4. An inclined worktable comprises plates 5, 6, 7, the plate 5 containing a series of openings which form the outlets of air channels 10 forming the folding aid. The rollers 11 protrude into the gaps between adjacent plates and, preferably, each consists of large-diameter discs 13 with smaller diameter discs 14 placed therebetween to provide annular recesses 18 in which the channels 10 are located. The outer surfaces of the discs 13 are cross-knurled. The rollers 11 are supported along their length by bearings 12 each supporting a disc 14 and mounted on the base 1 by an extension 15, an adjustable pressure spring 16 and a nut 17. The rollers 19 may be hollow cylinders each having a smooth outer surface and are backed by softer rollers 20 acted on by adjustable pressure springs 22. In use, the frame 2 is swung upwardly and held by the cylinders 4 whilst the strip 28, e.g. rubber-coated tyre cord fabric, is fed over a table 27 onto the worktable 5, 6, 7 to abut a stop bracket 8. The cylinders 4 lower the frame 2 and the rollers 11, 19 are rotated and air is admitted to the channels 10 to effect folding. The rollers 19 may be rotated at a peripheral speed very slightly greater than that of the rollers 11.
Patent GB-1257560-A (GB)
IPC: B27B31/00
Filed: 1969-09-08
Abstract: 1,257,560. Feeding timber to woodworking machines. K. LTNCK. 8 Sept., 1969 [15 March, 1969], No. 44301/69. Heading B5L. [Also in Division B8] A conveyer arrangement for feeding trunks to a wood-working machine, e.g. a frame saw or profile chipping machine comprises endless conveyers 2, 3, 4, two pairs of centring devices 24, 26 arranged with one of each pair on opposite sides of the conveyer 4 and two holddown devices 21, 22. The conveyers 2, 3 are mounted in respective frameworks 5, 11, pivoted about a horizontal axis transverse of the conveyer by hydraulic rams 7, 13, whereby the conveyers may be inclined relative to one another (Fig. 5, not shown) to cause an unmachined trunk to rotate about its longitudinal axis to bring its centre of gravity to a lowest position. A turning device 17, comprising a pair of rollers (18), (19), Fig. 2 (not shown), at least one of which is driven, and positioned between the conveyers may assist in the turning of a trunk. When partially machined trunks or cants are handled the conveyers 2, 3 are aligned in a common horizontal plane, Fig. 6 (not shown). The centring devices 24, 26 may each comprise a pair of endless chain conveyers (23), (24), Fig. 4 (not shown), or a pair of arms (25), (26). In each case the conveyers or arms are linked to a respective common operating cylinder 47, 54 so that they move symmetrically about the centre line of the conveyers. The hold-down devices each comprise an endless chain conveyer (31), (32) pivotally mounted at one end for movement about a horizontal axis transverse to the conveyers by respective hydraulic rams (35), (36). The hydraulic rams (35), (36) of the hold-down devices and the hydraulic rams (47), (54) of the centring devices are respectively connected to low and high pressure hydraulic circuits (Fig. 3) during the initial passage of a trunk along the conveyer 4 until the arms (26), (25) are opened by the trunk and thereby actuate a limit switch to reverse the low and high pressure circuit connection to the rams 47, 54, 35, 36 until the trunk has passed through the centring device 26. The conveyers (31), (32), (23), (24) are driven at substantially the same speed as the conveyers 2, 3, 4. The conveyers 2, 3, 4 each comprise a series of endless chain with teeth to engage the trunk, the height of the teeth being such as to allow relative movement between the conveyers and the trunk should a predetermined force at the teeth be exceeded.
Patent GB-1264381-A (GB)
IPC: C08L21/00
Filed: 1969-01-21
Abstract: 1,264,381. Compositions for bonding rubber to textiles. GOODYEAR TIRE & RUBBER CO. 21 Jan., 1969 [29 Jan., 1968], No. 3290/69. Headings C3P and C3Q. [Also in Divisions D1-D2] A composition comprises a natural or synthetic rubber, a methylene acceptor, e.g. resorcinol, and a methylene donor which is the reaction product of hexamethylene tetramine and an acid.
Patent GB-1266977-A (GB)
IPC: H01H71/24
Filed: 1969-09-19
Abstract: 1,266,977. Automatic circuit breakers. SQUARE D. CO. 19 Sept., 1969 [18 Nov., 1968], No. 46183/69. Heading HlN. An automatic circuit breaker, of the kind having an overcentre spring toggle linkage and a latched tripping lever 40 reset by moving an operating member to the off position, is provided with a sensitive electromagnetic releasing device 82 acting through multiple latches to release the lever 40 on small overloads and a less sensitive but quicker acting electromagnetic release 104 acting to directly disengage the main latch 66 upon short circuit. The lever 40 has a roller 43 held by a loosely pivoted member 55 lightly biased clockwise by a spring. The member 55 is supported by the main latch 66 to prevent the main overcentre spring overcoming the light spring to release the lever 40. The latch 66 is biased clockwise and moved anticlockwise to release the member 55 either by the short circuit tripping armature 105 directly coupled to it or by a spring urged member 70 normally held off by a latch pin 77 on a lever 74. The lever 74 is movable by the sensitive tripping armature 90 through a lever 87 or by a bimetal 80 through adjusting screw 81 to release the member 70. A portion of the electromagnetic circuit of the releasing device 82 is formed by a detachable member 110 which can be replaced by others to alter the sensitivity of both the sensitive electromagnetic release 82 and the bimetal which is energized by a secondary winding 84 on the core of device 82. Means 103 is also provided to alter the bias on the sensitive armature 90. The pin 77 can also be released by a manual push button (Fig. 1A, not shown) acting on a trip bar 125 common to several poles; this has an arm 126a acted upon by a released lever 40 and an arm 126b acting on lever 74 to release the other poles. The tripping mechanism is reset by moving to the open position a handle 12 on a rotary shaft coupled by linkage 140 to a rocking member 36 carrying a roller 37 co-operating with a cam 42 on the tripping lever 40. The contacts are closed by moving the handle in the other direction causing the main overcentre spring (between pin 51 on member 56 and the knee of toggle linkage 46, 47) to straighten the toggle linkage. Simultaneous closing of all poles is provided by latches 117 which hold hack contact carriers 32 until member 36 reaches the end of its movement striking a screw 121 to tilt a release bar 114. The contacts comprise a plurality of parallel members (Fig. 8, not shown) coupled to the carrier 32 by lost motion screws 34 and contact pressure springs 20, 21. Means (Fig. 10, not shown) is provided to trip the mechanism if the current setting members 110 are withdrawn and prevent its being reset until they are replaced.
Patent GB-1288381-A (GB)
IPC: H01R9/00
Filed: 1968-09-17
Abstract: 1288381 Moulding electrical sockets on to conductors H T BECK and R KOEHLER 17 Sept 1969 [17 Sept 1968] 44177/68 Heading B5A [Also in Division H2]  An electrical socket for a bulb is made by fixing the electrical contacts on a former, electrically connecting a pair of conductors to these contacts and moulding the socket around the contacts and conductors. The electrical contacts comprise U-shaped member 16 which engages the screw threads on the bulb and member 18 which forms the central connection. The contacts are formed in a long metal strip 20. The contacts are separated from the strip which is keyed in position over former 22 by holes 32, the contacts are separated laterally and former 22 is raised and plunger 38 lowered to position the contacts on the co-operating former 22 as shown in Fig. 7. Two mould halves are closed around the sides of former 22 and a pair of conductors 12, 14 are laid across the mould so that one conductor is over each of the points 16d, 18d. A plunger 50 is then moved downwards to press the conductors 12, 14 downwards into electrical contact with spikes 16d, 18d and to close the mould prior to the injection of plastics material e.g. polypropylene. The process may be carried out on a rotary table with four positions, a first where the contacts are removed from the strip and placed on the former, a second where the number of contacts on the former is checked, a third where the socket is moulded and a fourth where the former is checked to ensure that the socket and contacts have been removed.
Patent GB-1289295-A (GB)
IPC: F15B5/00
Filed: 1968-10-04
Abstract: 1289295 Gauging NATIONAL RESEARCH DEVELOPMENT CORP 1 Oct 1969 [4 Oct 1968] 47293/68 Headings B3B and B3T A pressure summing device used, e.g. for correcting for tool wear in a turning operation, comprises at least three pressure units 10, 11, 12 each having a movable element connected to a link 13, 14 or 15 of a spider 16. The centre of the spider is formed as a gauge block 17 in proximity to a capillary tube 18 receiving a pressure supply Ps and emitting a signal pressure Pg which is dependent on the distance between the end of the tube 18 and the surface of the block 17. The pressure units comprise a pressure chamber formed by a rigid cylindrical wall and a resilient bellows member so that variation of the pressure in the chamber will vary the position of the movable element and tilt the spider 16. One of the pressure units may be supplied with a stable biasing pressure which sets the sensitivity of the device. In its application in a turning operation the summing device 26 controls a servo-valve 30 which controls the ram 29 of a tool slide carrying a tool 28. The device 26 receives a biasing pressure Pb and two gauge pressures P1 and P2 from gauges 31, 32 that gauge the work 27 diameter and tool slide position respectively. As the tool wears the signal pressure P1 varies due to increased workpiece diameter and the tool slide is moved automatically to correct for the wear.
Patent GB-1290858-A (GB)
IPC: G01R11/56
Filed: 1969-06-25
Abstract: 1290858 Counters SANGAMO WESTON Ltd 23 June 1970 [25 June 1969] 32144/69 Heading G4D A digital register for a multirate electricity meter comprises a plurality of displays. A multi digit display of the cyclometer type comprises a lowest significance digit drum 10 which is moved strictly in proportion to the input movement and a number of higher significance digit drums 11, 15 etc. of the type which change digit indications rapidly, and is modified by addition of a member 26 which gives a visual indication 22 when the drum 10 is about to cause the drum 11 to make a digit charge. The member 26 is a coaxially mounted drum, having a counterweight 23, and is rotated with drum 10 for 180‹ by engagement of members 24, 25. Just before drum 10 reaches its zero digit mark a red patch 22 on drum 26 is visible through a viewing slot (not shown). When drum 10 reaches the zero digit mark, the counterweight 23 has reached the top and causes the drum 26 to rotate rapidly through 180‹, the red patch is replaced by white and the drum 11 is rapidly rotated to the next digit e.g. by a Geneva mechanism. Another counterweight 28 may be added to drum 10 to smooth out the work over the cycle (Figs. 6 and 7, not shown). The display may be used as an electric watt-hour meter and a two-rate electric meter with electrically operated changeover means for the two displays is provided (Figs. 8 to 13, not shown), there being a visual means showing which display is connected.
Patent GB-1295008-A (GB)
IPC: C23F1/08
Filed: 1971-07-29
Abstract: 1295008 Etching RCA CORPORATION 29 July 1971 [7 Aug 1970] 35758/71 Heading B6J An article such as a silicon wafer 24, Fig. 1, is etched to reduce its thickness by immersion in a mixture of hydrofluoric acid and nitric acid in a cylindrical vessel 12 made of polyvinyl chloride, the etchant being circulated so as to move upwards at the centre and downwards at the edge to produce a toroidal disturbance by a vertically reciprocating impeller comprising a polyvinyl chloride disc 14, Figs. 1 and 2, having a plurality of upwardly tapered holes 15. The article 24, protected by wax on its lower surface and a rim portion of its upper surface, is sealed to a glass substrate 26 positioned in a well 22 formed in a deflector 16 made of tetrafluoroethylene fluorinated ethyl-propylene resin. The deflector is found with a surface 20 in the form of a segment of an inverted core and sloping downwards towards the centre at an angle of 30-75 degrees to the vertical axis of circulation 13. The surface 20 directs the downwardly moving etchant inwards over the article. At a particular angle (e.g. 68), the article is etched uniformly. A smaller angle produces a convex etched surface and a larger angle a concave surface. A light source below the vessel 12 cooperates with a light-sensitive device in or above the vessel to monitor the thickness of the wafer during etching.