baber/WOPTO huggingface dataset:
Patent GB-1099308-A (GB)
Title: Filter circuits
IPC: H03H17/02
Filed: 1966-09-20
Abstract: 1,099,308. Digital measurement of selected frequency signals. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 20, 1966 [Oct. 15, 1965], No. 41821/66. Heading G4H. A filter circuit for filtering a selected frequency component from an input continuous wave signal comprises an analogueto-digital converter connected to sample the signal, and a sampling signal generator connected to control the converter so that it samples the input signal at the frequency of the selected component to provide digital output signals representing the amplitude of the selected component. The input waveform is applied at 8 to a band-pass filter 10, passing a narrow frequency band only so as to prevent interference by harmonics. The signal is applied to a phase-shift circuit which shifts by 90 degrees all the component signals of the input. The shifted and unshifted signals are applied to analogue-to-digital converters 14P and 14 which are enabled at a repetition frequency equal to the selected frequency. This is controlled by the sampling frequency generator 16. The outputs of the analogue-to-digital converters are integrated in coherent integrators 30, 30P. Each consists of a digital summer 32, 32P which adds the output from the analogue-to-digital converter to a weighted sum signal. The summers are connected to digital storage units 34, 34P and these connect through multiplier units 36, 36P to the summers. All these circuits may comprise shift registers and their operation may be controlled by the generator 16. The outputs from the stores 34 and 34P are squared at 40 and 40P and added. The multipliers 36, 36P multiply the value in stores 34, 34P by a constant value, less than one, and this is added to the input value at 32, 32P to form a new value to be entered into the store. The output at 45 is a periodic train of numbers indicating the magnitude, at successive sample times, of the selected frequency component of the input signal. The theory of the circuit operation is given in the Specification. Instead of having a constant value, the sampling frequency may vary so that the circuit performs a scanning operation, measuring the values of successive frequencies in turn. In a modification a single analogue-to-digital converter is used, enabled by pairs of sampling pulses, one being a delayed form of the other. The delay approximates to the 90 degree phase shift of unit 12. The two digital values pass in turn to a single coherent integrator similar to units 30 and 30P. The squarers 40, 40P are replaced by a circuit which takes the absolute values of the numbers given by the integrator. The two samples of each pair are separated by a demultiplexer and are added.
Patent GB-420270-A (GB)
Abstract: 420,270. Match - making machines. AKTIEBOLAGET SIEFVERT & FORNANDER, 30, S÷dra Võgen, Kalmar, Sweden. March 27, 1934, No. 9577. Convention date, Dec. 27, 1933. [Class 50] The match splint conveyer 1 is guided over two systems of turning members 3, 5, 7 and 2, 4, 6, 8, in a number of horizontal loops so as to pass over one system with the splints directed outwards and over the other with the splints directed inwards, the axes of adjacent members of this system being disposed in different vertical planes and the vertical distance between the axes being less than the diameter of the members. Turning wheels 2, 4, 6, 8, and a further series of guide wheels 11 .. 14 are toothed to engage the carrier bars of the conveyer. The guide wheels and curved guides 16, 17, cause the conveyer to extend more than 180‹ round the turning wheels 3, 5, 7. Each guide wheel engages two adjacent parts of the conveyer with opposite direction of movement thereby preventing wear of the guides 16, 17. The turning members may comprise stationary guides.
Patent GB-1259740-A (GB)
Title: Improvements in or relating to a stirring mechanism for circulating the ink in the ink reservoir of a printing machine
Inventor: GRAUPNER EBERHARD
IPC: B41F31/03
Filed: 1970-09-03
Abstract: 1,259,740. Inking apparatus. POLYGRAPH LEIPZIG VEB. 3 Sept., 1970, No. 42110/70. Heading B6C. In an ink agitating device in which the body supporting the agitator head 8 is slidably moved along a path parallel to the ductor roller 1 by an endless chain 15, the head 8 is rotated through the interengagement of a gear-wheel 12 and a stationary chain 20 fixed between two points in a straight line also parallel to the ductor roller.
Patent GB-1039549-A (GB)
Title: Vehicle transmission apparatus
Inventor: WRIGHT JOHN THOMAS MATTHEW
IPC: B60K17/28
Filed: 1963-10-25
Abstract: 1,039,549. Tractor driving gear. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 5, 1964 [Oct. 25, 1963], No. 42149/63. Heading B7H. [Also in Division F2] In an agricultural tractor an axially slidable sleeve 33, splined to the input shaft 32 of a driven axle differential, in a first position engages splines on the end of an output shaft 31 of an engine driven variable speed hydrostatic drive having a pump and a motor both of the variable stroke swashplate type, to clutch the shafts 31, 32 together, and in a second position (as shown) for towed engine starts or on failure of the variable speed gear, meshes gears 34, 35 to clutch the shaft 32 to a power take-off shaft 16 connected to the engine through a spring engaged friction clutch 23. The output shaft 21 of an engine driven friction clutch (not shown) is drivingly connected to the input shaft 22 of the variable speed gear and carries the input member 24 of the friction clutch 23 which is controlled, e.g. by a pedal, through an axially movable member 28, a thrust member 27, a lever 26 and a pressure plate 25. The output member 23 of the clutch is fixed to a hollow shaft 20 coaxial with the shaft 21 and carrying a pinion 19 meshing a gear 18 of the power take-off shaft 16.
Patent GB-1241387-A (GB)
Title: Improvements in or relating to the manufacture of wheels
IPC: B29C45/14
Filed: 1969-08-25
Abstract: 1,241,387. Injection moulding wheel hubs &c. STAUBLI FRERES & CIE. 25 Aug., 1969 [30 Aug., 1968], No. 42172/69. Heading B5A. [Also in Division F2] In a method of making a pulley or wheel hub &c. in plastics material moulded on a bearing in which the outer race of the bearing is constituted by two annular cheeks 5, 6 (Fig. 3), plastics material is injected into a mould (not shown) so that the pressure of the material ensures centring of the cheeks in contact with the balls 3 or other rolling members. In Fig. 3, the inner race also comprises two cheeks 7, 8. The balls 3, a cage 4 and the cheeks 5-8 are assembled in a mould and plastics material injected to produce, on the one hand, the pulley 1, (2) with its hub 1a, and on the other hand, a central ring 9. Adhesive ribbons 11, 12 cover the joints between the cheek members 5, 6 and 7, 8 to prevent penetration of injected material. In Fig. 4, the cheeks 15, 16 of the outer race have integral extensions 15a, 16o while the cheeks 17, 18 of the inner race have hook portions 17a, 18a which improve anchorage in the inner ring 19. In Fig. 5 (not shown), the inner race comprises a single member (20) having shoulders (20a) against which the outer race extensions abut during moulding. In Fig. 6 (not shown), two sets of balls are provided while in Fig. 7 (not shown) roller bearings are used. The rollers may be tapered.
Patent GB-1203246-A (GB)
Title: Receptacle, particularly for tiering and nesting
IPC: B65D21/04
Filed: 1967-09-18
Abstract: 1,203,246. Stacking and nesting trays. MID-WEST METALLIC PRODUCTS Inc. 18 Sept., 1967 [22 Sept., 1966], No. 42373/67. Heading B8P. A tray has side walls 21 reinforced by ribs 25, &c., bottom stacking projections 32 on the outside of lower side wall strips 23 either being slipped into recessed top stacking projections 31 inside upper side wall strips 22 of a like tray, to stack one tray atop the other Fig. 7 (not shown), or alternatively being slidden down through gaps 22 between the ribs so that one tray is nested within the other, Fig. 6 (not shown). The reinforcing ribs 25, &c. together with end ribs 26, are so shaped that as an upper tray is nested into a lower tray, the former is guided into vertical alignment with the latter. The recessed top stacking projections 31 each contain an upwardly facing shoulder (31a), Fig. 6 (not shown), over which a downwardly facing shoulder (32a), Fig. 8 (not shown), underneath a bottom stacking projection 32, is locked when two like trays are stacked, to prevent outwards spread of the side walls 21, The tray may be of plastics, aluminium, &c., and may consist of the two end walls 21 secured to a base 20. In the latter case, tongues (23a), Fig. 8 (not shown), on the lower side wall strips 23 are passed into slots in the enlarged ends 38a of end walls 38, and are secured by pins 39. As a modification, the top stacking projections (34), Figs. 11, 12 (not shown), may be of U-shape with a locking bulge (34b) in one side to engage over a hook (35a) on a lower stacking projection of another like tray, and thus oppose vertical separation of the two. In a modified construction, Figs. 13-17 (not shown), the side walls have additional ribs (45, &c.), parallel to the ribs 25, &c., and the top stacking projections (51, &c.) have inclined lead-in slide surfaces (52) to guide the bottom stacking projections (53) into position when stacking. Shallow feet (55) are provided on the underside of the tray. The upper side wall strip 22 may be reinforced by providing it with an extension wall (56), Figs. 18, 19 (not shown), which has a slot (59) for a tongue (38<SP>11</SP>) of the end wall 38, the tongue being secured by rivets (60).
Patent GB-1534737-A (GB)
Title: Self-exercises
IPC: A63B21/002
Filed: 1977-10-17
Abstract: 1534737 Exercising apparatus D G W TURNER 17 Oct 1977 [16 Oct 1976] 43089/76 Heading A6M  Exercising apparatus comprises a pair of substantially rigid members 2, 3 of arcuate form with means 4, 5 for demountally securing the ends of the members together so as to form an annular structure. As shown the means 4, 5 are formed as handles with opposite hand female screw threads to cooperate with corresponding male screw threads on the ends of mmebers 2 and 3. Various modes of use are described including in combination with a length of flexible material (wire) with loops at its end (Fig. 3, not shown).
Patent GB-949524-A (GB)
Title: Improvements in air plug gage construction
IPC: G01B13/10
Filed: 1961-12-04
Abstract: 949, 524. Pneumatic plug gauges. STANDARD GAGE CO. Inc. Dec.4,1961 [Dec. 8, 1960], No.43298/61. Heading G1M. A pneumatic plug-type gauging head has an oblique band of reduced diameter (21-22) in which the nozzles 14 are formed, at opposite ends of a diameter, so that an encompassing workpiece, particularly one of narrow axial extent, will always bear against the body 11 of the gauging head on tilting and thus avoid damage to the nozzles by accidental contact. The nozzles 14 are formed by circular grooves 15 in the base of the reduceddiameter band and the orifices 13 communicate with an axial channel 16. Longitudinal grooves 20 serve as air outlets. The reduced-diameter band is machined by means of a grinding wheel rotating about an axis parallel with the plug axis, the grinding wheel being reciprocated parallel with the plug axis while the plug itself is rotated in synchronization .
Patent GB-1065645-A (GB)
Title: Gas absorption apparatus
IPC: B01F3/04
Filed: 1963-11-04
Abstract: 1,065,645. Contacting gases with liquids; carbonating liquids. W. E. HOTCHKISS. Nov. 4, 1963, No. 43434/63. Headings B1C and B1R. Apparatus for contacting gases with liquids, particularly for carbonating water or beverages, comprises a cylinder 8 with a piston 16 movable therein and having a hollow piston rod 22, liquid being supplied through a valved inlet 82 to the portion of the cylinder above the piston 16 and gas through a valved inlet 75 to the portion of the cylinder below the piston 16, the pressure exerted by the gas on the piston being sufficient to open a valve adapted to close a passageway 20 extending through the piston and spray through a nozzle 68 the liquid above the piston into the gas below. The valve closing the passageway 20 comprises a flange 28 formed on the lower end of the piston rod 22 and urged by a spring 30 into sealing contact with a ring 34. The piston rod 22 also carries at its lower end a valve seat 42 co-operating with a member 44 carried by a rod 38 fluted at its lower end so that when the rod 38 is depressed against the action of a spring 56 the cylinder is vented to atmosphere. Liquid is withdrawn from the cylinder through an outlet 59 closed when the cylinder is under pressure by a valve 63 held open when the cylinder is not under pressure by a spring 65 so that when the cylinder is vented to atmosphere the liquid in the cylinder is automatically discharged by the weight of the piston. When used to produce carbonated water the inlet 82 is connected to a main water supply and the inlet 75 to a cylinder containing carbon-di-oxide. The apparatus may be used to maintain the level of carbonated water in a reservoir at a desired level movement of the piston rod 22 and a float in the reservoir serving to actuate the valve in inlet 75 and a valve in the supply line for carbon-di-oxide to the inlet 75 respectively. In a modification (Figure 5) the piston has a number of passageways 130 extending therethrough. Liquid is fed to the cylinder from a hopper 154 and carbon-di-oxide through a hand operated valve 126. A hollow rod 138 extending through the piston rod 132 carries a valve member 136 to close the liquid outlet 140 and has a valve seat for a valve member 148 upward movement of which vents the cylinder 8 to atmosphere. Carbonated liquid is discharged from the cylinder by pressing upwardly a lever 142 which lifts valve members 136 and 148.
Patent GB-1015680-A (GB)
Title: A process for the separation of large area semi-conductor plates into small area plates, and apparatus connected therewith
IPC: H01L21/301
Filed: 1962-11-16
Abstract: 1,015,680. Engraving. SIEMENS SCHUCKERTWERKE A.G. Nov. 16, 1962 [Nov. 17, 1961], No. 43534/62. Heading B6J. [Also in Division H1] On large area semi-conductor plates, lines corresponding to small area plates are scored therein by an engraving machine including a tool carriage 12, Figs. 1 and 4, carrying a roller 19 rotated by a motor-driven drum 5. The axis of the roller 19 is movable in a horizontal plane by rotating a shaft 23, and when it is not parallel to the axis of the drum 5 the carriage is caused to move axially of the drum to carry the tool, a diamond 39, over the workpiece 62 clamped to a carriage 55. An arrangement mounted on the carriage 12 comprising a lever 26, Fig. 6, engaging fixed adjustable stops 8, 9 at the end of the carriage strokes and rotatable on the shaft 23, a lever 25 fixed to the shaft 23, and an over-centre spring arrangement 28a, constitute a reversal mechanism for the carriage 12. At one end of its stroke, the carriage actuates a switch to release a pawl from a rack on the carriage 55, which is then moved by a weight through the distance between two scored line positions. The tool is raised and lowered, so as to be operative only during movement in one direction, under control of an arm 33 engaged by the lever 25. The side flanks of the tool approaching the cutting edge make an angle of 140 degrees with each other. The tool is adjustable with respect to its holder before placing in the machine by means of a device described with reference to Fig. 9 (not shown). The pressure of application of the toolis 50-200 g. and the speed 0.01-0.05 m./sec. The speed of the carriage 12 is greater on the non-operative stroke.
Patent GB-1073738-A (GB)
Title: A method of producing instant coffee
IPC: A23F5/26
Filed: 1964-10-26
Abstract: Roasted coffee beans are subjected to aqueous extraction, and thereafter the melanoidines remaining in the grounds, which are soluble in alkali metal hydroxide solutions of pH 8-8.5 or in acidified, organic, water soluble solvents, at pH 1-3, are recovered from the grounds, which may have been re-roasted, and added, either in solution or in powder form, to the aqueous extract, which may be either in its liquid or dried form.  The extraction may be effected with a mixture of aqueous hydrochloric acid and elhanol, melanol, or acetone, the melanoidines removed from the extract by means of an absorbent, and thereafter eluted therefrom by an alkali metal hydroxide solution, or the extraction may be directly effected with dilute alkali metal hydroxide, and thereafter the alkaline solution may be adjusted to pH7-5.5 by means of a cation exchanger in the hydrogen form.  This solution may then be dried, or added to the water to be used for the aqueous extraction of the roast coffee.
Patent GB-1363027-A (GB)
Title: Pharmaceutical compositions
IPC: A61K9/22
Filed: 1972-09-20
Abstract: 1363027 Enzyme compositions SOC GENERALE DE RECHERCHES D'APPLICATIONS SCIENTIFIQUES 20 Sept 1972 [23 Sept 1971] 43616/72 Heading C3H [Also in Division A5] Particles of an enzyme for use as a medicament are coated with a hydrophobic polyethylene glycol or ester of glycerol with a fatty acid by forming a homogeneous suspension of particulate enzyme in a molten mass of the hydrophobic substance and atomizing the suspension under pressure into air below the melting point of the hydrophobic substance so as to produce particles having a diameter of from 50 to 1000 microns. The enzyme may be a lipase, a pancreatic amylase, a ribo- or deoxyribonuclease, elastase or lyophilized pancreas.
Patent GB-1015048-A (GB)
Title: Nickel-base refractory alloys
IPC: C22C19/05
Filed: 1963-11-05
Abstract: An alloy has the following percentage composition by weight: .Cr.25 -33 .Ni.45 -53 .Nb.3.5 - 6 .W.1 - 5 .C.0.3 - 0.6 .Fe.(at least 4) the remainder Ta may be present up to 0.5 in the Nb and the alloy may also contain Mn up to 2, Si up to 0.5 and B 0.1 - 0.4.  The alloy is suitable for constructions which are in contact with molten glass and particularly for centrifugal apparatus for producing glass fibres (see Division C1).ALSO:A centrifugal device for producing glass fibres is made of an alloy having the following percentage composition: .Cr.25 -33 .Ni.45 -53 .Nb.3.5- 6 .W.1 - 5 .C.0.3- 0.6 .Fe (at least 4) the remainder. Ta may be present up to 0.5 in the Nb and the alloy may also contain Mn up to 2, Si up to 0.5 and B 0.1-0.4.  A glass of the following percentage composition is referred to: .SiO2.61.25 .SO3.0.31 .Fe2O3.0.4 .Al2O3.4.0 .CaO.8.5 .MgO.4.1 .Na2O.12.55 .K2O.0.49 .B2O3.5.2 .BaO.1.6 .F.2.5
Patent GB-1524855-A (GB)
Title: Electromagnetic relay
IPC: H01H50/26
Filed: 1975-10-27
Abstract: 1524855 Post Office relays DANFOSS A/S 27 Oct 1975 [28 Oct 1974] 44088/75 Heading H1N A relay generally of the P.O. type has its L-shaped armature 6 retained on the knifeedge 5 of its yoke 3 by a retainer 22 which is part of its contact carrier attachment 16, the carrier 16 has sets contact springs 19, 20, 21 inserted in slots 18 on opposite sides of a wall 32 between upper and lower walls 33, 35 slotted to accommodate an actuator slide 12. An end wall 34 of the attachment 16 is slotted at 30 to provide resilient outer tongues which engage the armature opposite the knife-edge 5 on opposite sides of an armature recess 13. A block 25 of the attachment 16 extends into the recess 13 and has an aperture which receives an armature extension to limit armature movement under shack conditions. The attachment 16 is located by projections 49, 51 in respective hole and slot 50, 52 and secured by a screw 46. A second contact mounting attachment 56 may be provided.
Patent GB-1324458-A (GB)
Title: Speed control for an electrostatically supported ball gyroscope
IPC: G01C19/06
Filed: 1971-09-22
Abstract: 1324458 Gyroscopes NORTH AMERICAN ROCKWELL CORP 22 Sept 1971 [5 Oct 1970] 44190/71 Heading G1C [Also in Division G3] A rotating gyroscope ball has its centre of mass laterally displaced from its spin axis to enable levitating forces to control the speed of rotation. In the embodiment shown, a gyroscope ball 11 comprises a sphere of beryllium with a thin layer of a dense metal 13 on one side to displace the centre of mass a distance d from the geometric centre which, in operation, orbits about the spin axis. Levitation is produced by eight electrodes, each formed as an octant of a sphere, and energized in opposed pairs. As the ball rotates, its spacing from the electrodes varies cyclically, and electrical signals are taken from the electrodes to control the levitation and spin axis attitude. The signals are also used to produce a servo component in the current energizing the electrodes and thus form an accelerating or decelerating couple on the ball, Fig. 10a, to maintain its speed in accordance with a reference set by a resonant circuit or by an external source of pulses (see Division G3).
Patent GB-1534834-A (GB)
Title: Electrolysis of an aqueous alkali metal halide solution
IPC: C25B9/19
Filed: 1977-10-24
Abstract: 1534834 Horizontal brine electrolysis cell ASAHI DENKA KOGYO KK 24 Oct 1977 [22 Oct 1976] 44207/77 Heading C7B An aqueous solution of alkali metal halide e.g. NaCl is electrolyzed by feeding it via conduit 5 into a middle chamber 12 of a three-chamber horizontal cell, partitioned from an upper cathode chamber 10 by a cation-exchange membrane 3 and from a lower anode chamber 11 by a liquidpermeable diaphragm 4, and withdrawing resultant H 2  via exit 7 and alkali metal hydroxide e.g. NaOH solution via conduit 8 from the cathode chamber, and resultant halogen gas e.g. Cl 2  via exit 6 and depleted halide solution via conduit 9 from the anode chamber working as a gas chamber. Water or dilute alkali metal hydroxide solution may be supplied or recycled via pipe 13 to the cathode chamber. The cell may be one of a series arranged as a stacked horizontal system.
Patent GB-944026-A (GB)
Title: Improvements in removable labels for textile articles and interlining fabrics
Inventor: MEYER HANS
IPC: D03D1/00
Filed: 1959-01-02
Abstract: 944,026. Laminates. POLYMARK Ltd. Dec. 30, 1959 [Jan. 2, 1959; June 9, 1959], Nos. 44223/59 and 44224/59. Divided out of 944,025. Heading B5N. [Also in Divisions B8 and D1] A fabric for labels or interlinings is woven from groups of the three thin non-thermoplastic warp yarns 41-44 alternating with thick thermoplastic yarns 51-54 in a twill weave such that each pick of weft 6 passes under a thermoplastic yarn 53 masked by non-thermoplastic yarns 42, 43 and over a non-thermoplastic group 41 flanked by exposed thermoplastic yarns 51, 52. The fabric is woven with the weft tension lower than the warp tension. The thermoplastic yarns may be flat monofils or low-twist continuous filament yarns of polyvinyl chloride, copolymer of vinylidene chloride with vinyl chloride or acrylonitrile, or may be nylon 11. The other yarns may be cotton. When used as an interlining, the fabric may be given a stiffening treatment before laminating it with another fabric on one or both sides by means of heat and pressure. Specifications 561,989, 644,119, 650,910, 668,305, 695,708, 735,236, 735,280 and 882,521 also are referred to.