baber/WOPTO huggingface dataset:
Patent GB-945140-A (GB)
Title: Coin freed mechanism
IPC: G07F15/00
Filed: 1959-11-03
Abstract: 945,140. Coin apparatus. R. J. DIGGINS. Nov. 3, 1960 [Nov. 3, 1959], No. 37184/59. Heading G4V. Coin freed mechanism for actuating a valve or switch for a predetermined time comprises a linkage adapted to be moved from an inoperative to a pre-set operative position after inserting a coin and in the latter position to be operable by a control to activate the valve or switch and also to release a timing mechanism which includes a movable member adapted to move under the action of a controlled force for a predetermined time and at the end of this time to cause the linkage to return to its inoperative position and the valve or switch to return to its initial state. As shown in Fig. 1, a coin inserted in a slot 15 falls to a box 37 and then by rotating an external handle a rod 40 is pushed against its spring loading so that a latch 13 lies to the left of a peg 16 on a lever 17. When the rod springs back to its original position, the latch 13 rocks the lever 17 so that a locking arm 19 is disengaged from a recess 18 and moves up at the other end away from a stop 21 on an arm 20. The arm 20 rises under the influence of its spring 20a until it abuts a rod 44 on an external lever 43 and a toggle link 22 is straightened out to form an extension of the arm 20. Depression of the lever 43 then pushes the arm 20 down and a lever 23 is pivoted to open the valve 25; the locking arm 19 re-engages the recess 18 and locks the arm 20 in its original position. A rod 26 also lowers a lever 27 away from a magnetically-controlled timer 33 and the timer slowly falls by gravity down a ratchet bar 34 until it contacts a peg 35 on a lever 30. Movement of the lever 30 breaks the toggle link 22 and the levers 23 and 27 return to their original positions, closing the valve 25 and raising the timer again.
Patent GB-344815-A (GB)
Title: Improvements in or relating to polarized relays for use in telephone and like systems
IPC: H01H51/22
Filed: 1929-12-05
Abstract: 344,815. Light current relays. STANDARD TELEPHONES & CABLES, Ltd. and TERRY, R., ST. G., Columbia House, Aldwych, London. Dec. 5, 1929, No. 37309. [Class 38 (v).] Telephone relays having a line winding and a polarizing winding on a single core are provided with a fixed magnetic shunt around the polarizing winding, the shunt being arranged so that its action is not varied by the operation of the relay. As shown in Fig. 1 the line and polarizing windings L, P are mounted in tandem on a core 1, the usual L-shaped yoke.piece 5 being secured at one end of the core. Mounted at the centre of the core between the windings L, P is an iron disc 3 bracket portions 13 (Fig. 2) of which are screwed to the yoke piece so that a magnetic shunt is formed around the portion of the core 1 on which the winding P is mounted. A copper slug may be mounted to the left of the magnetic disc 3 to give a slow-release characteristic to the winding P. As shown in Figs. 3 and 5, applied to relays of the type described in Specifications 324,074 and 324,075, [both in Class 38 (v), Electric switches &c.], the magnetic shunt consists of a T-shaped magnetic member 6 secured between the yoke piece 5 and a magnetic disc 3 mounted on the core 1 between the windings. The action of the magnetic shunt in the operation of the relay causes a rapid saturation of the portion of the core under the polarizing winding and to assist this action this portion of the core may be of reduced cross section. The reluctance of the shunt path may be varied by the insertion of non- magnetic shims between the disc 3 and the adjacent shunt member. The operation of the shunt renders the flux in the shunt path sensibly constant over the normal range of battery variation, and the pull on the armature due to its retractive forces may be balanced against the relatively small magnetic pull on the armature due to leakage of flux from the shunt path so that only a small excitation of the line winding L is required to cause operation of the relay. Reverse excitation of winding L will not, however, operate the relay, unless the reverse current is relatively large. The relay may be arranged so that the armature may be maintained in its attracted position by the winding P alone after operation has been affected by the joint action of both windings. Various circuit arrangements of the windings are described.
Patent GB-519553-A (GB)
Title: Improvements in or relating to closure caps for phials, bottles, milk bottles, cans and other containers
IPC: B65D41/58
Filed: 1938-12-22
Abstract: 519,553. Closures for bottles and like containers. JOHNSEN & JORGENSEN FLINT GLAS, Ltd., and ASHFORD, E. Dec. 22, 1938, No. 37334. [Class 125 (iii)] A rubber closure cap 1 for a bottle, phial, can or other container 5 h'as a head with a dependent skirt 2 which has a circumferential ridge 7 which can be sprung into a corresponding recess in the container mouth 4 when the closure is forced home. The hollow skirt 2 may be replaced by a solid plug in the form shown in Fig. 1, and may have two or more parallel circumferential ridges., or the continuous ridges may be replaced by interrupted ridges with gaps 9 Fig. 3. The cap may be made to be applied externally to the mouth of the container, in which case a ridge 11 on the internal surface of the skirt engages a recess 12, Fig. 4, on the external surface of the container mouth. Interrupted ridges may be used in this form. In a modification the ridges are provided on a rubber ring mounted on a hollow core.
Patent GB-1434036-A (GB)
Title: Test systems for internal combustion engines
IPC: G01M15/04
Filed: 1972-08-11
Abstract: 1434036 Testing IC engines C A V Ltd 2 Aug 1973 [11 Aug 1972] 37520/72 Heading G1N The condition of each of the cylinders of an I.C. engine is monitored by a measurement of the engine speed before and after the firing stroke for that cylinder. As shown, the flywheel 11 of an engine 12 has n equidistant marks 13, where the engine is a 2-stroke with n cylinders or a 4-stroke with 2n cylinders. Each mark produces a pulse output from a transducer 10, the pulse train being fed to a computer 14 which determines w 1  and w 2 , the angular speed before and after a firing stroke respectively, and calculates w<SP>2</SP> 2  - w<SP>2</SP> 1  representing the work done by the engine during this firing stroke, whereby the work done by each cylinder is compared. A further transducer 15 associated with the fuel pipeline 16 produces a pulse train indicating the fuel injection instants, which is compared at 16a with the pulse train from transducer 10 to monitor the fuel injection timing.
Patent GB-1104115-A (GB)
Title: Hydrocyanation process
IPC: C07D307/54
Filed: 1965-09-02
Abstract: A hydrocyanation process for introducing a cyano group into an a b -unsaturated carbonyl compound or an equivalent active compound selected from b -hydroxy-, b -amino, and b -mercapto carbonyl compounds or a vinylog thereof, at the carbon atom of the b -position or the vinylogous position, which comprises using an alkylcyanoaluminium compound as the sole hydrocyanation agent. The alkylcyanoaluminium compound may be represented by the formula RR1AlCN wherein R is a lower alkyl group or a lower alkoxy group, R1 is a lower alkyl group, lower alkoxy group, a halogen atom, or cyano group. As a b -unsaturated carbonyl compound there may be used aliphatic, cyclic and heterocyclic ketones, aldehydes, carboxylic acids and esters thereof.
Patent GB-1013291-A (GB)
Title: Forming and solid-phase bonding
IPC: B21D53/04
Filed: 1961-10-19
Abstract: 1,013,291. Rolling; producing rods and tubes; welding; bending. TEXAS INSTRUMENTS Inc. Oct. 19, 1961 [Oct. 19, 1960], No. 37588/61. Headings B3A, B3E, B3M and B3R.  In a method of forming a tubular metal product superposed metal strips are fed between grooved rotating rolls, the tangent lands of the rolls, on either side of the grooves, squeezing the strips to cause solid phase bonding of the strips between the tangent lands, and the strips being deformed to assume the shapes of the grooves. Wires or tubes may be simultaneously produced within the tubular product.  Metal strips 15 and wires 19 are fed through apertures in a guide block 11 to a pair of grooved rolls 1, the sheets being bent around the wires and bonded at portions 9 where lands 5 of the rolls squeeze the sheets. Reduction in cross-section of the sheets and wires is not essential and a partial bonding between the wires and sheets can be improved by a subsequent heating step. The resulting product is split to form three clad wires, a drawing operation on the wires then being possible. Wire preformed with corrugations may be employed. Open tubes may be formed by feeding two strips between the rolls, the strip buckling to conform to the shape of the roll grooves. Where the ratio of outside diameter of the tube to its wall thickness is greater than 6 an arbor is used to help bending of the strips. Suitable materials for the wires are Mb, Fe and Cu and for the cladding gold rich alloys of Pd, Ag or Pt, Al, Cu, Su, Ni, Ta, Ag, Pd or Pt, the finished diameter of a tube or clad wire being, for example, about 0-04 inch. Specification 746,426 is referred to.
Patent GB-1068247-A (GB)
Title: Improvement to video-frequency transmitter circuits
IPC: H04N5/14
Filed: 1964-09-15
Abstract: 1,068,247. Pre-emphasis systems; transistor pulse-shaping circuits; television. COMPAGNIE FRANCAISE DE TELEVISION. Sept. 15, 1964 [Oct. 4, 1963], No. 37699/64. Headings H3T, H4F and H4R. A video-frequency transmitter circuit including pre-emphasizing means having an amplitude/frequency response which increases with frequency, is characterized by the provision of limiting means for limiting the amplitude of peaks in the signal and for increasing the duration of any peaks so limited. After the preemphasizing stage a signal 82, Fig. 7, passes through the limiting means undistorted, provided its maximum amplitude is less than a threshold level No determined by the channel admission capacity; if the peak exceeds No, as shown in Fig. 7, the signal is distorted to the shape S3 shown in the solid line by being clipped and extended, this causing less distortion in the output signal of a receiver than alone. The system may be applied to transmitting a picture signal by a sub-carrier in a colour television system. Transistor pulse-shaping circuits.-Input signals are supplied to the base of transistor 71, Fig. 11, the load circuit of which comprises a resistance 51 in parallel with a capacitor 50 and with a resistance 52 and diode 57. The diode is normally conducting and the impedance of resistance 52 is less than that of capacitor 50. When the input exceeds a predetermined level the diode 57 cuts-off and the bandwidth of the circuit is reduced thereby lengthening the pulse. The output from terminals 55 and 56 is a lengthened pulse, and from terminals 55 and 56<SP>1</SP> is a clipped and lengthened pulse. The circuit shown limits negative peaks; the diode may be reversed to limit positive peaks. In a modified circuit, Fig. 12, the diode is replaced by the emitter-base contacts of a transistor 86, and the output is taken from terminals 88 and 89. This circuit acts on positive peaks; negative peaks may be clipped and lengthened by a circular circuit using N-P-N transistors, and both circuits may be connected in series to act on peaks of both polarities. In an alternative arrangement, Fig. 13, the input video signals pass through a difference amplifier 7 to the pre-emphasis circuit 2 and a amplifier 7 through a de-emphasis circuit 8. When the limiter 32 is inoperative the circuit acts as a normal negative feed-back arrangement, but when the limiter operates the feedback signal is not the same as the input and the peak is lengthened.
Patent GB-1043980-A (GB)
Title: Three stage servo valve
Inventor: HENRY AUGUSTUS P
IPC: F15B13/043
Filed: 1965-09-03
Abstract: 1,043,980. Fluid-pressure servomotor systems. AMERICAN BRAKE SHOE CO. Sept. 3, 1965, No. 37800/65. Heading G3P. A three-stage servo-valve comprises a firststage valve 102, which may be in the form of a pivotable nozzle co-operating with two receiving orifices (Fig. 5, not shown), a second-stage spool valve 106 controlled via lines 104, 105 by the firststage valve, and a third-stage spool valve 112 controlled via lines 109, 110 by the second stage valve, the second-and third-stage valves being connected to the first-stage valve by feed-back means comprising a lever 53 and flexible link 60. The natural frequency and damping ratio of the system may be varied by varying the point of connection of the link 60 to the lever 53. In operation, displacement of the first-stage valve, e.g. by a fluid force, a mechanical force or an electro-mechanical force such as a torque motor, causes displacement of both spools 106, 112, such displacements being summed by the lever 53 which acts via link 60 to return the first-stage valve to its neutral position to lock spools 106, 112 in their displaced positions.
Patent GB-1345741-A (GB)
Title: Gelatin-containing photographic layers having improved physical properties
IPC: C08F283/00
Filed: 1971-08-12
Abstract: 1345741 Photographic materials having plasticized layers AGFA-GEVAERT A G 12 Aug 1971 [20 Aug 19701 37883/71 Heading G2C [Also in Division C3] Photographic materials having increased strength and dimensional stability contain in at least one gelatin layer a graft copolymer of one or more polymerizable monomers and a cationic or anionic polyurethane, the said monomers for the cationic polyurethanes being non-ionic or cationic and the said monomers for the anionic polyurethanes being non-ionic or anionic, and the graft copolymer having a glass transition temperature not higher than -10 C. The graft copolymers are made by condensing aromatic or aliphatic polyisocyanates with linear compounds of molecular weight from about 300-10000 having terminal OH, COOH or amino groups, e.g. polyesters, polyacetals, polyethers, polyamides and polyesteramides having hydroxy groups, if desired in the presence of chainlengthening compounds such as glycols, di- or polyamines, polyols, hydrazine, ammonia or water, and the unreacted isocyanate groups are subsequently or simultaneously reacted with (i) compounds containing hydroxy or amino groups together with an acid group or an acid-groupforming group or compounds containing more than one acid group to obtain anionic polyurethanes, or ii) compounds containing in addition to hydroxy or amino a tertiary nitrogen atom which is subsequently converted into an ammonium nitrogen atom by reaction with alkylating agents and/or acids to obtain cationic polyurethanes. The anionic or cationic polyurethane is then graft-polymerized with a mono- or di-vinyl compound such as alkyl acrylates or methacrylates, styrene or butadienes, or in the case of anionic polyurethanes olefinically unsaturated carboxylic or sulphonic acids, or in the case of cationic polyurethanes olefinically unsaturated amines or ammonium salts. Many monomers are listed. The photographic layer may be a silver halide emulsion layer or a filter layer.
Patent GB-359795-A (GB)
Title: Improved process for producing artificial silk in the form of spun cakes
IPC: D01D7/02
Filed: 1930-12-16
Abstract: To facilitate the collection of artificial silk in spinning pots, the silk is loaded with heavy precipitates which are removed during the subsequent treatment.  The method is particularly applicable to the collection of silks of less than 60 deniers, especially of 20-30 deniers, while using spinning pots rotating at normal speeds of 6000 revs. per min.  The precipitates are formed on the silk by treatment with solutions of reacting substances.  In the case of cuprammonium silk, metal salt solutions such as of copper sulphate or magnesium sulphate, may be allowed to drop on to the threads as they pass over rollers on their travel from the spinning vessels to the centrifuges; the precipitates so formed are removed by treating the silk with acid in the centrifuge.  With viscose silk, treatment with solutions of lead salts which react with the sulphuric acid or sulphates carried from the precipitation bath, is appropriate; the precipitated lead sulphate is removed by a subsequent treatment with sodium or ammonium acetate.  With precipitates of low solubility, removal by treatment of the silk in hank form is to be preferred.
Patent GB-948515-A (GB)
Title: Improvements in apparatus for cutting and/or printing web material
Inventor: TOBEY FREDERICK SAMUEL
IPC: B65H20/18
Filed: 1961-10-24
Abstract: 948,515. Feeding webs; printing processes. W. H. BRADY & CO. Oct.24, 1961, No. 38048/61. Headings B6B, B6C and B6H. [Also in Division B4]  The invention relates to means for providing uniform spacing between die cuts and/or printed impressions, e.g. between the printed labels 17 of Figs. 6 or 7, made upon continuous web where a printing plate or cutting die is the sole means for forwardly moving the web. A laminated web 10 passes through the apparatus, as shown in Fig. 2. A rotary segmental cutting die 13 having leading and trailing cutting edges 15 and 16 respectively, extending from the recessed surface 14, which may have a printing pad with inking arrangements seated therein (not illustrated), moves the web forward intermittently, working against a rotatable plate 21. Attached to, but capable of rotational adjustment with the shaft 20 of the cutting die 13 is a cam disc 22. A link 28 pivoted at 29 to a rocker bracket 31 has a cam follower 27 and is adjustably supported by a link 61. The rocker bracket 31, which maintains the position shown in Fig. 2 until at or about the time the trailing edge 16 of the die 13 leaves the web has a clamping member 42 attached to a rotatable shaft 41, which is biased against a web support plate 40 by a spring 45 pulling on a lever 44 attached to the shaft 41. A second lever 43, attached to the shaft 41, spaces the clamping member 42 from the web whilst the rocker bracket is in the position shown in Fig. 2, by engaging an adjustable stop screw 46. The spring 45 also provides the force to maintain the cam follower 27 against the cam disc 22 and provides the initial force for the rocker bracket 31 to swing about the shaft 32 in the direction of the movement of the web, until the follower 27 reaches the concave part of the cam disc 22. On movement of the rocker bracket 31, the clamping member 42 moves down to grip the web against the support plate 40. In this manner, no random movement of the web due to its inertia is allowd when the trailing edge 16 of the die 13 leaves the web. A second clamping member 51 attached to a sleeve 50 rotatable about the shaft 41, is biased against the web support plate 40 by a spring 53 pulling on a lever 52, Fig. 1, attached to the sleeve 50. This clamping member 51 permanently applies pressure to the web resulting in a tension during the feeding of the web. In a second embodiment, Fig. 8 (not shown), the adjustable link 61 is replaced by a non-adjustable link 72, and the cam disc 22 is clamped in an adjustable position on the shaft 20 by a grub screw 75. The rocker bracket 31 is modified and has only one clamping member 78. Running adjustments may be made to the position of the link 61 to vary the spacing between the labels 17, Fig. 6, but in the second embodiment, the apparatus is stopped to adjust the angular position of the cam disc 22 relative to the shaft 20. Both embodiments allow spacing to be varied at will from no space to an overlapping condition or to a medium, but uniform, amount of space.
Patent GB-1137903-A (GB)
Title: Polyester resin compositions
Inventor: HICKMAN DEREK CHARLES EDWARD
IPC: C08K5/08
Filed: 1965-09-07
Abstract: 1,137,903. Polyester compositions. MIDDLESEX OIL & CHEMICALS WORKS Ltd. 18 Aug., 1966 [7 Sept., 1965], No. 38170/65. Heading C3P. A composition comprises an unsaturated polyester, an ethylenic monomer component capable of cross-linking the polyester, an amine accelerator and an inhibitor consisting of one or both of 1,4-naphthoquinone and 2-hydroxy- 1,4-naphthoquinone. Preferred polyesters are prepared from maleic acid, with or without additional isophthalic acid or terephthalic acid, and a glycol, e.g. diethylene glycol, 1,2- propylene glycol or 1,3-propylene glycol. The preferred monomer is styrene. The amine is preferably a tertiary aromatic amine, e.g. N,N-dimethyl-aniline or N,N-dimethyl-p-toluidine. Other inhibitors may be present, e.g. hydroquinone, benzoquinone, anthraquinone, 2 - methylanthraquinone, 2 - methyl - 1,4- naphthoquinone, and 8 - hydroxy - 1,4 - naphthoquinone. In the examples, the compositions are cured using benzoyl peroxide.
Patent GB-1450577-A (GB)
Title: Apparatus for measuring the size of subterranean cavities
IPC: G01S17/89
Filed: 1973-08-13
Abstract: 1450577 Measuring the size of subterranean cavities BRITISH GAS CORP 9 Aug 1974 [13 Aug 1973] 38207/73 Heading H4D In a device for measuring the size of subterranean cavities radiation from a mercury arc lamp 13, 14 is directed via a lens 15 and a continuously (or stepwise) rotatable mirror 6 to the wall of the cavity P and the reflected light is received by a photodiode or a photomultiplier 19 via a lens 18 when a further rotating mirror 7 is in a particular angular position relative to the instantaneous position of the mirror 6 (see Fig. 2, where "H" is the known distance between the mirror axes and "L" is the unknown distance away of the cavity wall). The device is encased in a container 1 suspended on a cable 3 connected to a winching machine for selectively adjusting the container's vertical position in the cavern, and its angular position is adjusted by drive means 4 for rotating a lower portion 1 of the container relative to a head section 2. The amount :of rotation may be sensed by a gyro-compass 5 with respect to terrestrial magnetic north/south poles. The description discloses a block diagram (Fig. 4, not shown) for processing the signals representative of the mirror's position obtained from an up/down counter controlling motors 11, 12 which rotate the mirrors 6 and 7, these position signals are then sent through the cable 3 and processed with the vertical and overall angular position of the container by a computer on the Earth's surface. The description also deals with features incorporated in the container to cope with varying magnitudes of pressure in the cavity, including a "brine" sensor to sense when the container has been lowered too far.