baber/WOPTO huggingface dataset:
Patent GB-1450698-A (GB)
Title: Security equipment
IPC: G08B13/24
Filed: 1973-12-12
Abstract: 1450698 Security equipment J K WOOD 11 March 1975 [12 Dec 1973] 57507/73 Heading E2X [Also in Division G4] A panel 12 for allowing access to a security area for coin handling purposes comprises at least one armhole 10 for providing access to a security area 30 from the other side 28 of the panel 12, each armhole having a metal detector arranged to respond to the passage of coins through the armhole. The invention is applicable to manual handling of coin on the security side 30 e.g. feeding or maintaining coin counting machines, from the open side 28 by an operator passing arms through the armholes. Any attempt to steal one or more coins would be detected by the metal detectors in the armholes. Metal detection. As shown in Fig. 2 the coin detectors comprise three coils 16, 18, 20 arranged concentrically with the armhole, coils 16 and 20 being fed in opposition from an oscillator 32 which also feeds one input of a differential amplifier 36. Coils 16 and 20 are normally balanced so that negligible signal is normally picked up by coil 18 but in the event of a coin being passed through the armhole, coil 18 provides sufficient signal to provide an output from differential amplifier 36 to overcome the threshold of the alarm control 40 and operate a bell 42 for a predetermined period. Alternatively, a resonent coin can be located around the armholes and a change in the Q-factor detected in the presence of a coin. Modifications. The panel 12 may be of metallic chain mail or of transparent plastics sheet with embedded wire, an alarm being given if the wire is cut.
Patent GB-1215159-A (GB)
Title: Spherical plug valve having retractable floating seats
Inventor: VERDURAND GEORGES
IPC: F16K5/06
Filed: 1967-12-19
Abstract: 1,215,159. Hand grip tools. ATELIERS BOUVIER. 19 Dec., 1967 [19 Dec., 1966; 17 March, 1967; 8 Dec., 1967], No. 57564/67. Heading B4W. [Also in Division F2] A retraction device for a valve seat, see Division F2, comprises a fork-shaped lever 34 having studs 35 to bear against the edges of the seat, and or hook-shaped catch 37 intended to engage a recess 38 in the valve body. In Fig. 7, not shown, the seat is retracted by a plain fork-shaped lever (48).
Patent GB-1178240-A (GB)
Title: Synthetic suedes and process for preparing them.
Inventor: ENDO HIROSHI
IPC: B29C41/14
Filed: 1967-12-21
Abstract: 1,178,240. Synthetic suede. SUEHIRO SEN-I KOGYO K.K. 21 Dec., 1967 [27 Dec., 1966], No. 58040/67. Headings D1B and D1P. Synthetic suede is made by impregnating a napped knitted fabric of double rib stitch structure or double rib stitch structure modified by the addition of a plain stitch structure and made from spun yarns of hydrophilic fibres with less than 15% by weight of a polyurethane elastomer. The fabric may be impregnated with a solution prepared by dissolving in a solvent a polyurethane elastomer having a molecular weight of 50,00-70,000 and a Durometer hardness of less than 82 at 20C and diluting the solution with a non- solvent for the elastomer to produce a liquor having a polyurethane elastomer concentration of 10% or less by wt and a viscosity of less than 200 centipoises at 25C, excess liquor removed from the fabric, and the fabric immersed under little or no tension in a first coagulation bath of water maintained at a temperature of 5-15C immersed under transverse tension in a second coagulation bath of water maintained at the same temperature as the first coagulation bath to stretch it in a direction transverse of its length, after coagulation removing at least some of the water from it, optionally subjected to a warm water treatment or softening treatment, dried at a temperature below 100C and polished e.g. by means of a roller wrapped with sand paper or a sanding paper. The fabric comprises at least 50% by weight of hydrophilic fibres and may be made from cotton, viscose rayon or wool fibres alone or in admixture with acrylic fibres. The polyurethane may be derived from methyl diphenyl diisocyanate, toluene diisocyanate or an aliphatic diisocyanate. The polyurethane elastomer may be dissolved in, dimethyl formamide, diethyl formamide, tetrahydrofurane, dimethyl sulphoxide, dioxan or diethyl dioxide and the solution diluted with acetone, methyl ethyl ketone, or an alcohol. The solution of the polyurethane elastomer may also contain a pigment. The synthetic suede may be used in the manufacture of overcoats, car clothes, golf gloves, household glass cleaning cloths, motor-car sheets and car polishing cloths.
Patent GB-1294449-A (GB)
Title: Improvements relating to position indicating instruments
Inventor: KRONNIE GERRIT HENDRIK TE
IPC: G01D5/38
Filed: 1969-11-27
Abstract: 1294449 Surveying instrument G H TE KRONNIE and K H VOLKERS [trading as VENOOTSCHAP ONDER FIRMA INGENIEURSBUREAU TE KRONNIE EN VOLKERS] 27 Nov 1969 [28 Nov 1968] 58049/69 Heading G1F [Also in Division G2] A position indicating instrument giving to a distant observer a visible pattern of Moire fringes indicating the position of a point relative to a plane of reference established by the instrument, comprises two angled line grids 4, 5 arranged perpendicular to a plane of reference 7, wherein the average pitches of the line grids and the positioning of the grids are selected such that either the conditions (I) are satified, wherein  d max = the maximum perpendicular distance between the grids taken in the direction perpendicular to the plane which bisects the angle between the grids, d min = the minimum perpendicular distance between the grids, n an integer, greater than zero, # m = the mean wavelength of the light used. The pattern of fringes observed depends on the observation distance and the angle of the observer to the reference plane. The values S and the angle between the grid planes are critical.for accuracy, the latter also being a function of s/ 2  d which makes fine grids at a long average mutual distance advantageous. Diffraction effects place a limit on accuracy, the first order region giving optimum accuracy (limits are quoted for selecting the parameters). In a modification, to improve the distance over which the fringes may be usefully observed, the pitch of the front grid is made slightly greater than that of the rear grid e.g. by 1/100 to 1/2000 of the average value of the pitches of the grids so that the apparent width of the fringes decreases and their shape changes as the observer recedes. Location of the reference plane is simplified if both of the grids have a variable pitch in the direction of the grid lines so that the bars will have constant width along their length, when viewed from a predermined distance.
Patent GB-1174929-A (GB)
Title: Improvements in and relating to Power Supply Arrangements for Image Converting apparatus
IPC: G02B27/00
Filed: 1966-12-29
Abstract: 1,174,929. Two part couplings. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 Dec., 1966 [29 Dec., 1965; 27 Jan., 1966], No. 58062/66. Heading H2E. [Also in Division C4] A plug and socket used in image intensifying apparatus (see Division C4) comprises three linearly arranged pins either dissimilarly spaced or of different diameters.
Patent GB-1159220-A (GB)
Title: Improvements in or relating to the Impregnation of Carbon Bodies
IPC: C04B41/46
Filed: 1967-12-21
Abstract: 1,159,220. Impregnating carbon bodies. SIGRI ELEKTROGRAPHIT G.m.b.H. 21 Dec., 1967 [21 Dec., 1966], No. 58221/67. Heading C1A. A carbon body is impregnated with a thermoplastic impregnant by placing the body in a vessel, evacuating said vessel, introducing impregnant and heating it to above its softening range, exerting superatmospheric pressure on the molten impregnant, cooling the vessel and contents, removing the impregnated body at a temperature in the softening range such that the impregnant on the surface of the body is partially molten and also contains solid, and cooling the body rapidly immediately after removal from the vessel. The body is preferably graphite, and the impregnant a chlorinated naphthalene or a chlorinated diphenyl, and the body may be cooled only to a temperature in the softening range of the impregnant prior to removal from the vessel, or may be cooled until all the impregnant has solidified and subsequently reheated. - After removal from the vessel, the body may be cooled by immersion in water.
Patent GB-1271230-A (GB)
Title: Waistbands
Inventor: GRAHAM HORACE GRANVILLE
IPC: A41F9/00
Filed: 1968-12-10
Abstract: 1,271,230. Frictional waistbands. H. G. GRAHAM & SON Ltd. 8 Dec., 1969 [10 Dec., 1968], No. 58651/68. Heading A3V. A frictional waistband comprises one or more facing strips 2, a backing strip 1, and a frictional insert 3 attached to and between them, the insert 3 being formed from a strip of woven synthetic material with a central longitudinal zone 4 of friction material and a weakened zone of a different weave structure 5 on each side of the friction material, along which weakened zones of the parts of the waistband are sewn together. Such a waistband does not pucker on sewing together the parts since the zones 5, which may be zones of looser weave than the rest of the woven synthetic material, provide little resistance to the sewing needle. The friction material may comprise rubber threads woven into the synthetic material in a single operation, the zone 5 being formed by adjustment of the weaving machine. Alternatively the friction material may be a strip of foamed rubber adhesively secured to the woven material. The backing strip 1 may be of canvas and the facing strips 2 of cotton.
Patent GB-1280428-A (GB)
Title: Improved flat bed knitting machines
IPC: D04B15/70
Filed: 1970-12-11
Abstract: 1280428 Knitting-machines H STOLL G STOLL E STOLL E STOLL J STOLL A STOLL R E STOLL and M STOLL 11 Dec 1970 [15 Dec 1969] 58851/70 Heading D1C A flat-bed machine has flexible needle jacks 12, with a butt 123 at the region of maximum bowing, that can be depressed out of range of the lock by a presser member. In the embodiment of Figure 1 the presser 14 is rocked about its pivot 142 by presser elements 16 of the lock, thereby depressing the butt. The presser can be moved longitudinally to vary its pivot point, and therewith which element is effective, by a jacquard. A second similar presser 18, acting of the first presser, increases the operating possibilities. In a modification, Figure 2 not shown, the pressers depress one end (233) of an intermediate member (23) which is then slid longitudinally under a camming bar (24). In the embodiment of Figure 4 the presser 25 is slid under a camming bar 24 when the selector jack 26, on which it is pivoted, is moved longitudinally.
Patent GB-1359376-A (GB)
Title: Electric time-peices
IPC: G02F1/13
Filed: 1971-12-20
Abstract: 1359376 Timepiece dials SUWA SEIKOSHA KK 20 Dec 1971 [29 Dec 1970(2)] 59074/71 Heading G3T In a timepiece comprising an electrical device which is carried by or forms part of the dial, contacts on the device are held under resilient pressure against corresponding contacts on the main timepiece structure to electrically connect the two parts. Fig. 2 shows a solar battery 1 having contacts 2 which are pressed against corresponding contacts 5 on an insulating plate 6 by a resilient washer 7. The washer 7 is of synthetic rubber but may be replaced by a wavy spring. The cells of the battery 1 are connected in series or parallel as desired by shaping the contacts 5. Application to the connection of time display elements, e.g. liquid crystal elements, light-emitting diodes, or electric lamps, is envisaged. In an alternative embodiment, Fig. 5, an insulating dial 11 carries solar cells 10 which are connected in series by metallic strips (55), Fig. 6 (not shown) on the underside of the dial and provided with terminal contacts 555. The latter engage resilient contacts 12, 13 on a metal base-plate 19 when feet 17 on the dial are inserted into bores in the plate and locked by screws 18. The contact 13 is insulated by an insert 16.
Patent GB-723011-A (GB)
Title: Improvements in or relating to blind riveting
IPC: B21J15/04
Filed: 1953-02-12
Abstract: 723,011. Blind-riveting. AIRCRAFT MATERIALS, Ltd., and GOULD, G. H. Feb. 12, 1953 [Jan. 10, 1952], No. 748/52. Addition to 656,758, [Group VII]. Class 83 (4). An improvement in or modification of the blind-riveting tool disclosed in the parent Specification is characterized in that the operating means comprising a lazy tongs mechanism is arranged to be operated by a handle device comprising relatively movable parts that can be grasped by one of the operator's hands and so associated with the lazy tongs mechanism that by squeezing the device a force can be exerted on the tongs mechanism tending to collapse it. The tool has a nosepiece 10 screwed on to a sleeve 12 which has two parallel fins 16. The sleeve houses a bar 20 which has a hollow piece 22 on its forward end, said piece having a frusto conical internal surface against which jaws 24 and 26 are pressed by a spring 28. The bar 20 extends rearward through a hole 30 in the sleeve and is urged forwards by a spring 32 so that the piece 22 abuts the end of the nosepiece 10, the jaws being held apart. The rear portion 42 of the bar has a collar 44 with grooves 48, 50 for receiving collars 92 and 94 mounted on levers 52 and 56 of the lazy tongs mechanism which levers are pivoted on the fins 16. A control handle device D is situated at the end of the lazy tongs mechanism remote from the nosepiece 10 and comprises a first U-shaped member 96 pivoted to the limbs 68, 70 of the lazy tongs mechanism and provided with a slot 100 through which passes a pin 102 fixed to the limbs 72, 74 and a second U-shaped member 104 having an inner U-shaped part 106 secured thereto and pivoted to the limbs 68, 70 by a pin 116, said part having a slot 118 through which passes a pin 120 on the limbs 72, 74. In operation, the mandrel of a blind riveting assembly is inserted between the open jaws 24, 26 and the operator squeezes the device D to shorten the lazy tongs and move the bar 20 and piece 22 away from the nosepiece sufficiently to allow the jaws to grip the mandrel. The operator then inserts the rivet into a hole in the work and thrusts the device D towards the nosepiece, collapsing the lazy tongs and setting the rivet. After setting the broken-off part of the mandrel still gripped between the jaws is ejected into a receptacle by the operator releasing his squeeze on the device D whereupon the tongs mechanism extends under the action of the spring 32 and the jaws release the mandrel when they abut the nosepiece 10. Specifications 348,818, 490,047, [both in Group VII], 504,928, 507,358, 568,013 and 613,882, [Group VII], are referred to.
Patent GB-2009662-A (GB)
Title: Modifying Wheel Rims
IPC: B29C45/14
Filed: 1978-11-28
Abstract: A plastics or rubber layer or formation is applied to the outer periphery of a metal wheel rim 10 by injection moulding into a cavity deformed by the rim and surrounding mould parts 19, 20, 26, 26'. In the case of a wire wheel the injected material seals the spoke holes. Bead retention grooves or ribs can be formed in the thickness of the plastics layer in the bead seat regions of the rim. Alternatively a circumferential bead retention rib can be provided on a bead seat by injection moulding into a recess in the metal rim so that the rib is keyed against axial displacement. <IMAGE>
Patent GB-2011130-A (GB)
Title: Electronic timepiece
IPC: G04G5/02
Filed: 1978-12-21
Abstract: An electronic timepiece comprises an oscillator circuit (1) for producing a standard time signal, a frequency divider circuit (2) for frequency dividing the standard time signal, a time display device (4) driven by the output of the divider circuit to display a time indication, a time setting circuit including a switching circuit (3) for selectively passing signals having different frequencies to the display device, and a counter circuit (5) arranged to control the switching circuit so that during a time setting operation the time indication displayed by the display device is advanced by e.g. ten minutes at a relatively slow rate and thereafter is advanced at a relatively rapid rate. After a further count is reached in the counting circuit, the switching circuit is again actuated so that setting thereafter proceeds once more at the relatively slow rate. <IMAGE>
Patent GB-2012179-A (GB)
Title: Vacuum filterbelt apparatus
IPC: B01D33/04
Filed: 1979-01-09
Abstract: Vacuum filterbelt apparatus of the kind having a continuous ribbed belt (1) movable by driving means (2, 3) along a continuous path and carrying a filter cloth (6) on its ribs, and having centrally disposed apertures in the belt which are in communication with a vacuum chamber (5) beneath the belt, has a longitudinal side wall (24) of the vacuum chamber (5) arranged as one or more removable panels 24, to allow easy access to the interior of the chamber for the removal of deposits and incrustations. The removable panel (24) slants inwardly and downwardly and has its top or bottom edge (29) held by a removable element (23), the other edge being held in position by a toggle (25). The belt is concave and has central flanges (18) which slide along flanges (19) on the chamber 5. The apparatus can be used for filtering a slurry of gypsum and phosphoric acid. <IMAGE>
Patent GB-2016786-A (GB)
Title: Improvements in or Relating to Magneto-Resistive Readout Apparatus
IPC: G11B5/39
Filed: 1979-01-11
Abstract: Apparatus for readout from magnetic memory devices, e.g. tapes, discs, drums, and bubble devices, comprises a magneto-resistive readout head 3, pulse generator 1, 2 applying sensing current to the head 3 in the form of trains of narrow pulses, and an averaging circuit 4 deriving an average output signal from head 4 for the pulses in each train. A gating signal generator 2 produces pulses each of a few microseconds long and is connected to a pulse generator 1 so that the output therefrom is in the form of a series of bursts of pulses, each burst being a few microseconds long and having ten nanosecond long pulses at a p.t.f. of 10 MHz. Generator 2 gates circuit 4 to form an average of the head 3 output during each burst. Head 3 may be part of a balanced bridge circuit giving a null output at zero magnetic field. <IMAGE>
Patent GB-2017793-A (GB)
Title: Offshore structure
IPC: E02B17/00
Filed: 1979-01-24
Abstract: An offshore structure, such as a drilling platform, which is able to withstand the ice forces imposed thereon by impinging ice sheets and other larger masses of ice is provided with an upper conical portion 6 coaxially positioned relative to a lower conical portion 4. The surfaces forming the walls of both the upper and lower conical portions are inclined at an angle to the horizontal to receive ice masses moving into contact with the structure. The angle of inclination from the horizontal of the surface of the upper conical portion is greater than the angle of inclination of the surface of the lower conical portion and the maximum cross-sectional diameter of the upper conical portion is less than that at the top of the lower conical portion, ie. the minimum cross-sectional diameter of the lower portion, so that there exists a step-like surface 200 between the bottom of the upper conical portion and the top of the lower conical portion. <IMAGE>
Patent GB-2042009-A (GB)
Title: Fancy yarn
IPC: D02G3/34
Filed: 1979-02-02
Abstract: Fancy yarns are produced by drafting together a foundation roving 16, for example comprising wool fibres, and a twisted effect yarn 20, which may be of staple or continuous fibres, and twisting them together on a spinning frame. The effect yarn is broken into lengths and wrapped in intermittent lengths 26 round the foundation yarn. The resulting fancy yarn 28 may itself be folded with a plain or other further yarn. The invention provides a simple and economical way of producing, for example, a "flecked" or intermittent spiral yarn or an intermittent gimp yarn. <IMAGE>
Patent GB-2058219-A (GB)
Title: Lifting Apparatus
IPC: A61G7/10
Filed: 1979-08-03
Abstract: Apparatus is described with which a disabled person may be gently lowered into or raised from a bath. The apparatus includes an elongate inflatable bag 3 which is located at a convenient position in the bath and held in position by the pressure exerted by the ends of the bag on the sides of the bath. The person sits on the bag which is connected to a source of air under pressure by an inflation tube and a valve means 5 e.g. a slide valve enabling air to be vented (for lowering the person sitting on the bag) or fed to the bag (for inflating it to raise a person sitting on it). A convenient source of air under pressure is a domestic vacuum cleaner and the apparatus may be specifically adapted for use with such an air pressure source. <IMAGE>
Patent GB-2033380-A (GB)
Title: Preparation of Arylmethylethylene
IPC: C07C17/26
Filed: 1979-09-21
Abstract: Arylmethyl ethylenes of the formula ArCH2(X)C=C(X)(R) in which Ar is a phenyl radical, optionally substituted or forming part of a fused ring system, R is alkyl and each X is independently H, Cl, Br or I, are prepared by pyrolysing a mixture of ArCH3 and (Y)(X)C=C(X)(R) wherein Y is Cl, Br or I. Intermediates in the preparation of certain fungicides and plant growth regulators.
Patent GB-2036545-A (GB)
Title: Suction nozzle for vacuum cleaner
IPC: A47L9/06
Filed: 1979-11-06
Abstract: A vacuum cleaner suction nozzle comprising housing 10 provided with nozzle part 12 and brush part 16 capable of being raised and lowered relative to nozzle part 12 is characterized in that the brush part 16 is retained in its lowered position by attraction between magnet 19 and armature 22. A permanent magnet or electromagnetic arrangement may be used. The brush part may be lowered by stepping on housing part 17 which is made of resilient material. To return the brush part to its raised position, housing part 17 is stepped on again. Pedals may be provided to perform these functions. <IMAGE>
Patent GB-2043259-A (GB)
Title: Level measurement system
IPC: G01F23/26
Filed: 1979-11-19
Abstract: A compensated level measuring system for measuring the level of material housed in a vessel, incorporates compensation means for compensating for variations in the dielectric constant of the material. A two-element measuring system is used, having a first element (401) mounted at a fixed position within the vessel (415) for obtaining a level signal which is a function of the material level (416), and a second element (402) maintained within the vessel and always submerged in the material for obtaining a reference signal. Means are provided for adjusting the reference signal so that it can accurately compensate for variations in the level signal which occur independently of the material level. The compensation is provided either mechanically in which case the reference signal is effectively tuned by modifying the position of the reference probe (see Figures 2,3), or electronically where the effective reference signal is modified (405, 406, 410) to compensate for errors introduced by changes in the dielectric constant of the material being measured. <IMAGE>
Patent GB-2056782-A (GB)
Title: Printed circuit board assembly
IPC: H05K7/14
Filed: 1979-12-21
Abstract: In an assembly of printed circuit boards 7,8,9 in a housing, the boards are mounted substantially parallel to each other, and at different heights, so that components 16 on the edges of successive boards are visible from a point forward of the front board 7. The assembly may be used to provide an indicator display for a PABX telephone system. <IMAGE>