baber/WOPTO huggingface dataset:
Patent GB-1486809-A (GB)
Title: Stylus assembly and transducer using same
IPC: H04R1/18
Filed: 1974-11-27
Abstract: 1486809 Stereophonic pick-ups AUDIOTECHNICA KK 27 Nov 1974 [27 Nov 1973] 51424/74 Heading H4J In a stereophonic pick-up a cantilever stylus arm 11 (Fig. 2) has, at the end opposite the stylus 10, a carrier 12 carrying an armature 15 (see also Fig. 1). The carrier 12 and arm 11, in use, oscillate about a single point fulcrum. When the assembly is oriented as shown with the line joining the stylus tip to the fulcrum horizontal and the stylus tip downward, the armature lies horizontally in a vertical plane containing the fulcrum. Respective axes X-X and Y-Y joining the ends of the armature 15 to the fulcrum coincide with respective axes of modulation of 45-45 degree type record groove in use. The carrier 12 is moulded from nylon 66 having lower rigidity than that of the cantilever arm 11, formed as a tube of beryllium, titanium alloy or aluminium. A projection 13 of the carrier 12 extends into the arm 11. Alternatively the rear of arm 11 may be received in the carrier 12. The armature 15 is a hollow or solid cylinder and is adhered in a groove 14 or embedded in the carrier 12. The carrier 12 has a bore 16 and a suspension filament 17 extends rearwardly. This may be of piano wire. A mounting rod 19 includes a hollow rod 18 surrounding the filament 17 except at its end. A clamping bolt 24 secures the rod 19 in position. An elastic damper 26 is under slight compression and the fulcrum is at the centre of the effective length of the suspension filament 17. The transducer comprises a pair of magnetic cores 31, 32 coupled together by a common yoke 30. Core 31 includes a pair of polepieces 33, 34 while core 32 includes a pair of polepieces 35, (36) Fig. 5 (not shown). End 15a of armature 15 is disposed between polepieces 33, 34 while end 15b is disposed between polepieces 35, (36). When the armature 15 is oscillated such that end 15a moves about axis Y-Y between polepieces 33, 34 current flow is induced in coils 37, 38. No current flow is induced in coils 39, 40. When the end 15b moves about axis X-X current is induced in the coils 39, 40 disposed on the core 32. In practice current will be induced in both pairs of coils when a stereophonic record is played.
Patent GB-1401440-A (GB)
Title: Insulation materials
IPC: C04B28/24
Filed: 1971-11-05
Abstract: 1401440 Fibrous composition TAC CONSTRUCTION MATERIALS Ltd 12 Dec 1972 [5 Nov 1971] 51465/71 Heading C3N [Also in Division B5] A composition for forming an insulation material consists of (i) an aqueous component and (ii) a solids component consisting of: (a) 25-85% vermiculite granules, (c) 5-25% asbestos fibres, (c) 10-50% alkali metal silicate, the percentage of (a), (b) and (c) being by weight of the total weight of (a), (b) and (b), (d) 0-15% by weight, based on the weight of (c) of fine silica and, optionally, (e) an alkaline earth metal compound capable of reacting with a portion of the alkali metal silicate to form a waterinsoluble silicate on drying of the forming composition. The insulation material may be in the form of a pre-formed lining or moulding for application to an article to be insulated, or may be formed in situ as a layer or sheath on a surface of such an article. The fine silica may be added as such or obtained by partially precipitating from the silicate solution by, for example the addition of an acid. The alkaline earth metal compound (e) may be lime or calcium carbonate.
Patent GB-1112120-A (GB)
Title: A discharge apparatus for washing machines and dry cleaning machines
IPC: D06F43/00
Filed: 1966-11-18
Abstract: 1,112,120. Washing-machines IMPIANTI EVEREST L. CALCATERRA S.p.A. 18 Nov., 1966 [21 Sept. 1966], No. 51752/66. Heading D1A. In a washing machine a discharge outlet S can be rotated by a lever L to empty into either container C 1  or container C 2  each discharge position being maintained by an overcentre device comprising a spring M.
Patent GB-1376121-A (GB)
Title: Stonegathering machines
IPC: A01B43/00
Filed: 1971-11-01
Abstract: 1376121 Stone-gathering machine P F DOGGETT 1 Nov 1971 [31 Oct 1970] 51900/70 Heading A1F [Also in Division B2] A stone-gathering machine comprises a main frame 2 adapted to be hitched to a tractor and carrying a large vertical wheel 1 with a broad rim from which a number of vane-like members 17 extend substantially radially inwards towards the surface of a sieve device so as to provide pockets between the sieve and the wheel rim into which stones are directed by the aid of a laterally extending rake device as the wheel rolls over the ground. The rake device comprises tined bars 3, (4) (Fig. 3, not shown) pivotally mounted so as to be capable of being raised or lowered by the driver of the machine. The sieve device has a surface in the form of a truncated cone concentric with the wheel axis, consisting of a series of inclined rods on slats 11 extending within the wheel 1 from an inwardly-projecting rim portion 12 on one side of the wheel towards the other side where they adjoin the outer periphery of a second truncated cone 13 of smaller base diameter and preferably imperforat, the inclination of whose surface is in opposite direction to that of the rods or slats to direct small stones and clay away from the wheel. The stones are raised in the pockets as the wheel 1 rotates and delivered into a pivotally mounted side hopper 15, adapted to be tipped when required to discharge the stones. A stationary shield 14 closes the side of the pockets while the stones are being raised to the top of the hopper 15; further protection is afforded by a hinged portion 14a of the shield against which rests a stop plate 20 secured to the tined bar 3. Some at least of the vanes 17 are provided with apertures 18 to cause additional tumbling of the stones for clay removal. The bottom of the hopper 15 is slatted so as to form a sieve, as is its side remote from the wheel, which is opposite an apron 5 pivotally mounted in the hopper. A pin 10 on the inside of the rim of the wheel 1 imparts once per revolution of the wheel 1 a kicking motion to the apron via a lever 6 projecting into the wheel 1 and carrying a roller 7 contacting an arm 8 secured to the pivotal axle of the apron 5. The kicking may be prevented by operating a control rod (9) (Fig. 3, not shown) which moves the lever 6 sideways out of the path of the pin 10. To prevent jamming of the apron 5 the vanes 17 are arranged so that they do not bring a pocket of stones into the discharging position above the hopper during the kicking action, and in addition a guard member 19 may be provided on the wheel 1.
Patent GB-1317514-A (GB)
Title: Imidazoline derivatives
IPC: C07D233/20
Filed: 1971-11-09
Abstract: 1317514 Imidazoline derivatives CARLO ERBA SpA 9 Nov 1971 [30 Nov 1970] 51969/71 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein X is an up to C 5  aliphatic hydrocarbon group, and each of R and R<SP>1</SP>-R<SP>4</SP> is H, OH, NH 2 , C 1-6  alkyl, alkoxy or alkylamino, or C 2-6  alkenyl, and a process for making them by reacting with ethylenediamine the corresponding carboxymethyl- or cyanomethyl-1,4-X- 1,2,3,4-tetrahydronaphthalene (the latter being prepared from the chloromethyl-1,4-X-1,2,3,4- tetrahydronaphthalene, by reaction with, e.g., NaCN or KCN). Pharmaceutical compositions having a vasopressor activity comprise compounds of the above formula.
Patent GB-1400740-A (GB)
Title: Rubber formulation
IPC: C08L7/00
Filed: 1972-11-10
Abstract: 1400740 Rubber extender oils UNIVERSAL OIL PRODUCTS CO 10 Nov 1972 [11 Nov 1971] 51983/72 Heading C3P and C3Q Extender oil for use in otherwise conventional rubber formulations comprises the bottoms product of a styrene distillation column. Another extender oil may also be present. Exemplified rubbers are SBR and natural rubber, others also being mentioned.
Patent GB-1365968-A (GB)
Title: Storage batteries
IPC: H01M50/627
Filed: 1971-11-10
Abstract: 1365968 Automatic topping-up device for storage batteries ROBERT BOSCH GmbH 10 Nov 1971 [11 Nov 1970] 52112/71 Addition to 1285802 Heading H1B A vehicle storage battery as disclosed in Specification 1,285,802 is modified in that ventilation pipe 12 has at its lower end a bore or bores 23, the total cross-sectional area of the bore or bores being not more than the crosssectional area of a bore with a diameter of 6 mm. An additional pipe 17 is provided through which electrolyte is initially introduced into the cell compartments 9, Pipe 17 has an airtight plastics stopper 18 and a shoulder 19 which acts as an electrolyte-level indicator.
Patent GB-1175046-A (GB)
Title: Method for Treating a Polymer Film to give Opacity thereto
IPC: C08J7/02
Filed: 1966-11-22
Abstract: 1,175,046. Treating polymer film. NIPPON KAKOH SEISHI K.K. 22 Nov., 1966 [27 Nov., 1965], No. 52728/66. Heading B5B. [Also in Division B6] Polymer film is made opaque to provide a paper-like surface by forming a swollen layer on its surface by treating it with a solvent or swelling agent for a sufficient period of time such that the surface layer is swollen but not dissolved therein and then coagulating the swollen layer by the action of a coagulating agent which is miscible with the treating agent but has no dissolving or swelling effect on the film and then drying the film. Mixtures of solvents and swelling agents and mixtures of coagulating agents may be used as may a mixture of a solvent or swelling agent and a coagulating agent to produce the swollen layer. Specified polymers are polyolefines, polyamides, polyurethanes, rubber derivatives and cellulose derivatives, vinyl chloride polymers, polystyrene and polymethyl methacrylate.
Patent GB-1128246-A (GB)
Title: Improvements in or relating to water-spray laundry irons
IPC: D06F75/22
Filed: 1966-11-22
Abstract: 1,128,246. Spray irons. CALOR APPAREILS ELECTRO-DOMESTIQUES. 22 Nov., 1966 [6 Dec.. 1965],. No. 52270/66. Heading D1A. A hand iron in which water is pumped from a reservoir inside the iron by a piston 7 and cylinder 8 to a spray nozzle 13 comprises a pipe line 11 which is moulded integrally with the cylinder 8. One way valves 19, 20 and 32, 33 are provided to prevent air getting to the reservoir or the cylinder 8. The piston is operspring 26. In a modification (fig. 3 not shown) ated by a press button against the action of the spring 26 is omitted and the flexible pipe line 11 is replaced by a more rigid one.
Patent GB-1537500-A (GB)
Title: Method and apparatus for measuring the state of charge of a battery
IPC: G01R31/36
Filed: 1975-12-23
Abstract: 1537500 Battery testing CURTIS INSTRUMENTS INC 23 Dec 1975 [3 Jan 1975 27 June 1975] 52738/75 Heading G1U The extent to which a battery has become discharged by use is determined by integrating a signal which is a function of the extent by which the battery voltage falls below a pre-set value and also possibly of the extent of discharge of the battery, including, in particular, merely measuring the total time for which the battery voltage falls below the pre-set value. In a first embodiment, Fig. 1, a fraction of the battery I voltage from a tapping point 17 on a potential divider 9, 11, 13 is applied to a comparator 35, via a transient removing filter 36, together with a reference voltage from a source 27, and clockpulses 39 are counted 29 whenever the battery voltage falls below the pre-set value. The count is converted to analogue form by resistors 51 and displayed on a meter 31. When a first pre-set count is reached a warning alarm 57 is actuated and when a second higher pre-set count is reached an output from a NAND gate 41 locks out 43 all non-essential circuits, thereby minimizing the battery load. Rather than using a fixed pre-set voltage value, as shown in full lines, the reference voltage applied to the comparator 35 can be progressively reduced as the battery is progressively discharged as shown by dotted resistor 53<SP>1</SP>, and it may also be desirable to change the time constant of the filter 36 as the battery discharges. In a first modification, Fig. 2, (not shown), instead of gating clockpulses 39 to the counter 29 when the comparator produces an output, the comparator is connected to a PUT (69) which produces a pulse for counting for every unit of time that the comparator produces an output. In a second modification, Figs. 3 to 7 (not shown), the counter is replaced by a stepping motor driving a pointer over a scale, electrical outputs at particular counts being produced by lamps and photo-cells. In a second embodiment, Fig. 8 (not shown), a plurality of comparators having different fixed threshold levels and different output voltages are used, so that an analogue signal dependent upon the extent by which the battery voltage falls below a pre-set value is produced, and in a modification Fig. 9 (not shown) the reference voltages are progressively changed as the battery discharges. Also, in the second embodiment, integration of the resulting signal from the comparators is effected using a coulometer.
Patent GB-1495170-A (GB)
Title: Friction false twist devices
IPC: D02G1/08
Filed: 1975-12-24
Abstract: 1495170 False twisting using overlapping discs MONSANTO CO 24 Dec 1975 [26 Dec 1974] 52776/75 Heading DID  A false twister comprises at least three parallel, rotatable shafts each carrying a yarn-engaging disc interlaced between discs on each of the other shafts, the disc diameters being sufficiently large that a yarn passing through the twister is deflected by successive discs, at least one of the discs having a smaller diameter than at least one other of the discs. As shown, Fig. 1, discs 28, 42 are of metal, and the other discs may be made of, or have rims of, polyurethane. Disc 28 is of 45 mm diameter discs 36 and 44 of 47 mm diameter, disc 30 of 48 mm diameter, and subsequent discs of 50 mm diameter. In Fig. 4 disc 52 is 45 mm diameter and the other discs 50 mm diameter. The disc diameters may increase in more than one step from the inlet to the outlet of the twister, and the disc or discs of smaller diameter may be located nearer the inlet or the outlet.
Patent GB-1168072-A (GB)
Title: Door Handles
Inventor: HUMPHREYS JAMES
IPC: E05B1/00
Filed: 1965-12-13
Abstract: 1,168,072. Securing knobs on spindles. ARCHIBALD KENRICK & SONS Ltd. 21 Nov., 1966 [13 Dec., 1965], No. 52783/65. Heading F2U. A door knob 1 is screwed at 3 on the end of a corner threaded square spindle 4 and locked thereon by a detachable key 7 which axially engages between the square spindle 4 and a square recess formed in an extension 5 of the knob. The key 7 may be separate from, or integral with (Fig. 1, not shown), a cover plate 6 having a beaded edge snapped into a grooved outer edge of the knob 1. The knob 1 is rotatably supported on a boss 8a of a rose 8 which is secured to the door and covered by a flanged skirt. 9 of the knob.
Patent GB-1058280-A (GB)
Title: Reclining seats
Inventor: RACKSTRAW KENNETH AUBREY
IPC: A47C1/026
Filed: 1964-12-30
Abstract: 1,058,280. Adjustable seats. G. D. PETERS & CO. (ENGINEERING) Ltd. Nov. 12, 1965 [Dec. 30, 1964], No. 52907/64. Heading A4J. A reclining seat includes a piston rod 5 pivoted at 6 on a trunnion 7 on a seat back frame 2, the rod being slidably housed in a tubular member 10 which is pivoted at 11 on a support 4 and has a longitudinal slot 12 sliding on the pivot 6. A spring 13 bears between a piston 8 at the end of rod 5 and a seat 14 in the tube 10 to urge the back rest to its upright position. Piston 8 is formed with recesses 9. A lever 16 is pivoted at 11 and has a tooth 17 projecting through a hole 15 in tube 10. A spring 18 urges tooth 17 into engagement with whichever recess 9 is aligned with hole 15.
Patent GB-1413053-A (GB)
Title: Semiconductor chip
IPC: H01L27/04
Filed: 1973-11-15
Abstract: 1413053 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [26 Dec 1972] 52955/73 Heading H1K A square Si semiconductor chip 10 contains plural integrated circuits 11 connected to one of a plurality of metal connecting pads 12 extending through an, e.g. quartz insulant surface 14 on the chip; each circuit being connected to a portion of a metallic layer under the insulant to which the connecting pad is joined. The pads are disposed equi-angularly and non-orthogonally in four concentric circles 15, 16, 17, 18 whereby cantilevered test probes 19 may engage each of the pads 12 of circles 17, 18 and probes 20 may engage each of the pads 12 of circles 15, 16 so as to test the various circuits 11 of chip 10 in succession before attachment to, e.g. alumina substrate 21 by pads 12, which may be balls of lead-tin solder secured to croresponding lands 22 on the substrate surface. Pad 24 maintains orientation, and the lands are connected through metallic layers 25 vertically and horizontally spaced within the substrate for connection to discrete connecting pins (not shown) incorporating the chip, e.g. in a computer.
Patent GB-1523729-A (GB)
Title: Digital filtering
IPC: G06F17/18
Filed: 1975-11-20
Abstract: 1523729 Digital filter W & T AVERY Ltd 20 Nov 1975 [10 Dec 1974] 53257/74 Heading H3U Apparatus to average a series of digital inputs comprises a filtering stage having a first store of capacity M which receives and stores inputs and also produces the sum of the stored inputs, a second store which stores the sum and supplies it to an output, and means which acts on the application of N new inputs to the filtering stage to remove the oldest N inputs from the first store (but only if it already contains M inputs) and updates it with the N new inputs and which also adjusts the sum being stored in the second store by subtracting the sum of removed inputs and adding the sum of the updating inputs. The process can be repeated in a second filtering stage with a store capacity R and changes made in P, and in a third stage with a store capacity S and changes of T inputs. Preferably R equals M and S equals 2M; alternatively R equals M + m 1 , S equals 2 (M Œm 2 ) where m 1  and m 2  are small compared with M and are selected so that the product M(MŒm 1 ) 2(M # m 2 ) is at least approximately equal to 2M<SP>3</SP>. The second store in each filtering arrangement may have a divider associated with it to divide the output by the capacity M, R or S of the first store to provide an output for processing by subsequent stages. The apparatus may be used with a weightresponsive transducer having an analogue output, an A/D converter, and a sampler to provide inputs to the apparatus to form weighing equipment. The apparatus provides a linear output response to a step change in the input, whereas prior art filters have responded exponentially and thus more rapidly. The frequency response is said to resemble a decaying sine wave with the RMS value of the peaks being equivalent to a lower gain beyond cut off than in prior air filters, and thus less noisy.
Patent GB-1168818-A (GB)
Title: Improvements in or relating to Devices for Producing Cold
IPC: F25B9/14
Filed: 1966-11-30
Abstract: 1,168,818. Refrigerating. PHILIPS' GLOEILAMPENFABKIEKEN N.V. 30 Nov., 1966 [3 Dec., 1965], No. 53559/66. Heading F4H. In a refrigerating machine having a piston reciprocable in a cylinder to vary the volume of an expansion space, and a gap between the piston and cylinder which communicates at one end with the expansion space and is bounded at its other end by a seal between the piston and cylinder, the walls of the gap are cooled in operation of the machine to reduce the loss of cold from the expansion space. As shown, a cold gas refrigerator comprises a displacer having upper and lower portions 4, 5 of different diameters, a seal 18 being provided between portion 4 and its cylinder wall which are otherwise spaced to define a gap extending from the seal to the expansion space 6. The walls of portion 4 and its cylinder are stepped to provide spaces 22, 23 in which expansion takes place during operation of the refrigerator so that the walls of the gap are cooled and loss of cold from space 6 is reduced. In another embodiment (Fig. 3, not shown) the piston and cylinder taper from the seal to the expansion space so that expansion cooling again occurs in the gap. A stepped piston and cylinder arrangement as described above may also be employed in a machine of the type in which the cylinder is alternately connected to the inlet and outlet of an external compressor via high and low-pressure reservoirs (Fig. 4, not shown). In a further embodiment (Fig. 5, not shown) cold from the expansion space of a first cold-gas refrigerator is transferred to the walls of the gap via a closed condensing-evaporating system or a copper strip.
Patent GB-1136925-A (GB)
Title: Improved process for the production of fibre products adapted for packing material and the like and products manufactured according to the process
IPC: D21J3/00
Filed: 1965-12-17
Abstract: 1,136,925. Paper. SVENSKA CELLULOSA A.B. 17 Dec., 1965 [18 Dec., 1964], No. 53600/65. Headings D2A, D2B and D2W. Shaped cellulose fibre products are made by preparing a basic pulp having a yield in excess of 60% by a sulphite process, defibrating and/or beating the pulp to a freeness of 13-25‹ SR in such a way that no further increase in inhibition of the fibres occurs, removing 0.3-5% dry weight of fine material in the pulp so treated, shaping the final product before or during said removal and then drying the final product. The basic pulp can be made by the sulphite process described in 1136219. The defibration and/or beating can be carried out in two or more steps. The fine material can be removed by keeping the backwater open or by filtering or flocculation. The basic pulp or treated pulp can be mixed with a pulp of another type, e.g. a sulphate pulp. A resin blocking substance, e.g. talc, and retention increasing agent can be added, to the pulp. The final product can be sized at a pH of 5-8 preferably with sodium aluminate-resin size or aluminium sulphate-sodium hydroxide-resin size. The final product may have a dry content of 80-94% wt, a resistance to air penetration (Gurley) of 60 sec/100ml and a brightness of at least 30% G.E. with or without colouring and/or sizing. The final product may be liner, fluting, corrugated board or wrapping paper and may contain moisture-retaining agents, e.g. glycerine and sodium chloride.
Patent GB-1269125-A (GB)
Title: Improvements in and relating to the bonding of polyamide articles
IPC: D04H1/54
Filed: 1969-11-03
Abstract: 1,269,125. Bonded polyamide articles. MONSANTO CO. 3 Nov., 1969 [4 Nov., 1968], No. 53804/69. Addition to 1,248,232. Heading DIR.  Articles of polyamides, other than those in which the nitrogen atom and the carbon atom of each -NHCO- group throughout the molecule are each linked to a carbon atom of an aromatic nucleus, are bonded along their contiguous surfaces by contact with a gaseous mixture comprised of SO 2  and Cl 2  which is then desorbed e.g. by heating. The articles are preferably of nylon 66 in continuous filament form and deposited randomly by air jets on a support to form a web which may be subjected to pressure before or after contact with the gaseous mixture. The articles may be staple fibres formed into a mat by a carding machine and optionally needled. Other filament forming materials such as polyesters, polyacrylics, polyolefines, spandex, and rayon may be combined with the nylon 66 filaments and also natural fibres of cotton or wool.
Patent GB-1187617-A (GB)
Title: Improvements in or relating to apparatus for and a method of Moving from one Location to Another Reels Wound with Cable
Inventor: JUKES BRIAN FREDERICK
IPC: B65H75/18
Filed: 1967-11-27
Abstract: 1,187,617. Reel for cable. BRITISH INSULATED CALLENDER'S CABLES Ltd. 26 Nov., 1968 [27 Nov., 1967], No. 53887/67. Heading B8M. A reel 1 for winding cable thereon comprises a barrel 2 and a pair of axially spaced flanges each comprising a bearing part 3 located on the outer face of a non-circular part 4. The reel 1 runs on the tracks 5 with the bearing parts 3 in contact with the tracks and the parts 4 maintained clear of the ground so that the cable on the reel 1 is not damaged during transport.