baber/WOPTO huggingface dataset:
Patent GB-553828-A (GB)
Title: Improvements in frequency or phase modulation
IPC: H03C3/00
Filed: 1941-05-30
Abstract: 553,828. Phase or frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 30, 1941, No. 6970. Convention date, June 1, 1940. [Class 40 (v)] A circuit for phase or frequency modulation comprises a sine wave oscillation generator 1 stabilized by a crystal or other means, a multivibrator 3 converting the sine wave to saw-tooth form which is applied to a class B amplifier 9 together with modulating voltages from source 17 to provide pulses of varying duration which are applied to a resonant circuit 11 followed, if desired, by a frequency multiplying and amplitude limiting circuit 13. In the absence of modulating voltage, only the tips of the saw-toothed wave are applied to amplifier 9 resulting in a sinve wave EO, Fig. 2, in the output of the resonant circuit, but modulating voltages V1- V3 bring the saw-toothed wave into operation at different points on the slope resulting in output waves E1-E3. The circuit shown produces phase modulation, but if frequency modulation is required the modulating wave is modified in a resistance-capacity circuit as described in Specification 548,370.
Patent GB-589267-A (GB)
Title: Improvements in and relating to sanitary pails and like refuse receptacles for the disposal of soiled sanitary towels and septic bandages
IPC: B65F1/10
Filed: 1945-03-21
Abstract: 589,267. Sanitary pails and bins. BARRINGTON, D. March 21, 1945, No. 7123. [Class 26] A sanitary pail or like device for the disposal of soiled sanitary towels and septic bandages, comprises a receptacle 10 containing liquid capable of reducing the towels &c. to liquid form and provided with a closed top 11 formed by a segmented lid 12 to which is rigidly attached a plate 15 which, when the lid is open, forms the bottom of a chamber 16 for receiving the towels &c. The upper end of the wall of the container is shaped to form a pouring lip 19 which is covered by a hinged flap 18. An agitator disposed within the container comprises a rod 20 rotatably and slidably mounted in bearings 21, 22 and provided with metal blades 23, 24, the rod being rotated, when required, by a handle 25.
Patent GB-1487816-A (GB)
Title: Spark sources with electronic switching tubes
IPC: H05B41/30
Filed: 1975-02-20
Abstract: 1487816 Spark sources WISCONSIN ALUMNI RESEARCH FOUNDATION and FISHER SCIENTIFIC CO 20 Feb 1975 [22 Feb 1974] 7155/75 Heading H2H In apparatus for producing sparks at instants related to the occurrence of control signals is characterized in that a storage capacitor is connected between positive and negative poles of a D.C. power supply, the negatively charged plate of the capacitor is connected to one electrode of a spark gap, the other electrode of which is grounded, and an electronic switching tube is connected at its anode with the positively charged plate of the capacitor and the cathode is grounded. As shown a spark gap 12 has electrodes 13, 14, the latter being connected via series variable inductances L1 and L2 with the negatively charged plate of capacitor 16, the other electrode 13 being grounded and connected with the cathode of thyratron 38, the anode being connected to the positively charged plate of capacitor 16. The capacitor is charged from an A.C. source via bridge rectifier 34. A diode poled as illustrated is connected in series with another variable inductance L3. When thyratron 38 is triggered, capacitor 16 discharges in a decaying oscillatory fashion through the gap 12, the diodes 44 completing the oscillatory circuit. The values of L1-L3 may be chosen to provide a unidirectional current through the gap 12 or a bidirectional current. In a modification, Fig. 2 (not shown), the diode 20 is poled in the reverse direction and the first ¢ cycle of discharge current is shared between this diode and the gap. Waveforms are given in Figs. 3 and 4 (not shown).
Patent GB-491811-A (GB)
Title: Improvements relating to loose leaf binders
IPC: B42F13/00
Filed: 1938-03-10
Abstract: 491,811. Loose - leaf binders. GRAVELEY, H. V. N. March 10, 1938, No. 7203/37. [Class 146 (i)] The outer member a of a telescopic filing-post for a loose-leaf binder has a ring c fitted to its upper end substantially flush with the outer surface thereof carrying an integral depending spring-detent d formed with an inwardly-bent tooth which projects through a slot f in the member a into engagement with one of a series of notches g in the peripheral surface of the inner member b. The notches g are chamfered at their upper edges to allow the member b to be moved into the member a and to prevent its withdrawal, and may extend completely around the member b or only partially, as shown. In the latter case, the member b can be withdrawn by rotating it by means of a coin inserted in a slot m in the head k until the detent leaves the notches. Specification 29850/96, [Class 146], is referred to.
Patent GB-181439-A (GB)
Title: An instrument for registering the flow of gas
IPC: G01F1/28
Filed: 1921-03-05
Abstract: 181,439. Davis, R. H. March 5, 1921. Flow-meters, pressure-actuated.-Relates to gas-meters of the kind comprising a closed cylindrical chamber free of any dividing partitions and having a gas inlet and outlet and a vane pivotally mounted on a spindle or pivot coaxial with the chamber and carrying a pointer moving over a graduated dial against the action of a spring, the zero position of the vane being adjacent to the gas inlet. The inlet c is positioned so that the entering gas strikes the vane e in a direction more or less tangential to the circular path of the latter. The vane may be carried by a disc g or by an arm provided with a counterweight h. The gas inlet may be in the form of a nozzle c<2> having an inlet c into the chamber, a short adjustable tube s having a central passage d serving to vary the area of the inlet c to enable the graduated dial to be uniform in all instruments. The gas outlet d<1> is preferably arranged adjacent to the inlet c' as shown in Fig. 5. If it is desired to have the outlet fitting opposite to the inlet, as shown in Fig. 2, such outlet fitting communicates by an internal passage without the cutlet port in the chamber which is placed near the inlet.
Patent GB-436367-A (GB)
Title: An improved machine for cutting trenches specially applicable for cutting trenches for draining agricultural land
IPC: E02F5/02
Filed: 1934-03-07
Abstract: 436,367. Drain -making apparatus; laying cables. GARDNER, G. A. W., and GARDNER, F. E., Radcliffe Farm, Dilworth, Longridge, Preston. March 7, 1934, No. 7208. [Class 6 (i)] [See also Group XXXVI] An implement for cutting trenches for draining and cablelaying purposes &c. comprises a sledge or cutter frame, side knives rigidly secured to the rear of the sledge, a transverse knife connecting the bottoms of the side knives, an elevator for raising the severed clod to the ground level, a plate, shoe, or wheel for supporting the front of the sledge, and means for adjusting the plate, shoe, or wheel and so adjusting the angle which the transverse knife makes with the horizontal plane. The maximum transverse dimensions of the implement preferably do not exceed the width of the trench cut, so that it may be used to increase the depth of the trench by being drawn along it again with the sledge resting on the bottom. The sledge A may comprise steel side-bars D arranged on edge with wooden packing or flooring between them. The side knives B may be made by bending the bars D downwardly into the shape shown and sharpening their front edges. They may be flared outwardly at the rear. The transverse knife C may be welded to the side knives and may be curved slightly upwards at the front. The bars D are bent inwards at the front and riveted to a draw-plate E provided with holes 5 for attaching the draw bar or link F at varying heights. The front of the sledge is adjustable vertically by means of a pivoted shoe H adjustable by a screw K and hand-wheel 11. A vertical steering-bar P fits into a hole 12, and a shackle 13 is provided for use in raising the implement. The bar P may be removed and used as a crow-bar. The wooden elevator R has an inclined upper face 15 and a horizontal lower face 14 of metal. It is connected to the knife C by shackles 15<1>, 16 and a ring 18, so as to be free to move vertically or laterally relative to the knives and sledge. The elevator may consist of two plates hinged together at the front and adjustable relatively to one another by a screw and toggles. The elevated clods may be withdrawn laterally by means of a rake ; or the elevator may be provided with a deflecting plate or with curved sides to deliver the clods at the side of the trench. The bottom of the trench may be shaped to receive drain pipes or cables by using a knife C of corresponding shape, or by attaching a former or cutter behind the main knives. When two laterally separated cuts are made the intervening soil may be severed by a cutter on the elevator. The sledge A may be mounted on wheels, which may drive an endless band or conveyer fitted to the elevator.
Patent GB-183176-A (GB)
Title: Improvements in or relating to advertising devices or toys
IPC: G09F19/14
Filed: 1921-03-07
Abstract: 183,176. Curwen, J. S. March 7, 1921. Optical toys.-Relates to advertising devices or toys of the type comprising a line screen and composite picture in which the screen is in the form of a transparent, sheet having a series of parallel ribs of convex cross-section on one surface, so as to constitute a series of cylindrical lenses lying side-by-sidein contact with one another, the distance between the central longitudinal axes of the ribs corresponding to the spacing of the strips in the design. The invention consists in so proportioning the width of the design strips, D, E, F, the cross-section of the ribs A<1>, and the distance of the ribbed surface, from the design that the design strips are magnified to the full width of the ribs and from a given point of view a solid picture is presented to the eye. Two series of parallel convex ribs arranged at an angle to one another may be formed on the transparent screen, each series having its own composite design, and means may be provided whereby the screen or the design. or both, may be moved in one or two directions to produce change of character or colour in the design. The screen may be built up of strips having the required form or of glass rods placed side-by-side. Movement of the screen or design may be effected by mounting the device in a railway carriage and utilizing a pendulum swung by the motion of the carriage, or the device may be suspended from a bracket in the open and oscillated by wind action. Actuating mechanism is described comprising a worm disc reciprocating a plate connected by pin-andslot to the moving part of the device.
Patent GB-785235-A (GB)
Title: Improvements relating to contact assemblies for electric circuit breakers
Inventor: FLURSCHEIM CEDRIC HAROLD
IPC: H01H33/12
Filed: 1955-03-11
Abstract: 785,235. Liquid-blast switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 9, 1956 [March 11, 1955], No. 7265/55. Class 38 (5). A circuit-breaker has a contact assembly including three contacts, the first of which is engageable by a moving contact, whilst the second is engageable with the third and is moved into such engagement by an insulating member movable with the moving contact, the first contact being permanently connected to one of the other two so as to provide for two series breaks which are effected substantially simultaneously, and which overlap each other as viewed in a plane containing the contacts. The third contact 14 which is carried by a support member 3<SP>1</SP> and is biased downwards by a spring 14<SP>1</SP>, is engageable by the second contact, i.e. a surface 13<SP>1</SP> on an arm 9, which also carries a surface 10<SP>1</SP> forming the first contact. The arm 9 has a pivot pin 8 engaging slots 7 in fixed plates 6 and is biased downwardly by a spring 18, so that on downward movement of a contact bridge 12 which lowers an insulating rod 17 and a contact rod 11, the arm 9 is moved to the dotted position wherein a stop 19 abuts a plate 20, the breaks between contacts 10<SP>1</SP>, 11 and 131, 14 occurring substantially simultaneously. The bridge 12 also carries a contact rod 11 at its other end co-operating with a similar contact assembly, each assembly being enclosed in a liquid-immersed arc-extinguishing shroud having exhaust vents 21, 22. The latter are continued downwardly at 23 to avoid collision between the waste products from vents 22 in the two shrouds. Alternatively, vents 22 may be continued to the front or back of the shrouds. In a modification (not shown), the contact 10<SP>1</SP> is formed on the mounting member 6 for arm 9.
Patent GB-761534-A (GB)
Title: Improvements in hydraulic pumps, motors or transmission gears
IPC: F04B1/24
Filed: 1952-03-21
Abstract: 761,534. Revolving-cylinder pumps. EBERT, H. March 21, 1952 [March 21, 1951; April 4, 1951], No. 7398/52. Class 102(i) [Also in Group XXIX] A hydraulic pump has two rotary cylinder barrels 19, 20 at least one of which has its axis inclined to the axis of the common driving or driven shaft 1, the pistons 17, 18 of the two barrels reacting directly or through connecting rods' 15, 16 on a flange or flanges 9, 10 mounted on and perpendicular to the axis of the shaft 1, the two barrels being so arranged relatively to one another that the axial components of the piston forces are wholly or mainly cancelled out, at least one of the barrels being hollow and the shaft 1 passing through the hollow barrel or barrels. The shaft 1 is splined to a driving member 6 on to which are fixed the flanges 9, 10 which are formed with sockets to receive the ball ends of connecting rods 15, 16. Both cylinder barrels 19, 20 thus rotate with the shaft 1. The liquid spaces 21 and 23 at the ends of the cylinders are connected together. In another embodiment, Fig. 2 (not shown) the shaft 1 is hollow and of double-coned formation and passes through both barrels. A single flange for the connecting rods is provided between the barrels. In both these embodiments one or both of the barrels may be of adjustable inclination for varying the output, the adjustment being effected by a lever or hand-wheel through a linkage, or by a bevel or worm gear; alternatively the adjustment may be effected by a hydraulic piston which may be controlled automatically. In another embodiment a pair of flanges such as 9 or 10 may be arranged at the outer ends of the cylinder barrels, the pistons 17, 18 then acting in the opposite direction to those shown in Fig. 1. The shaft 1 carrying the flanges passes through both barrels and may be supported additionally between the barrels. The shaft may be in two parts. In another embodiment, Fig. 3, the cylinder barrel 20 is of adjustable inclination and its pistons 18 are connected by rods 16 to a flange 10 on the shaft 1. A second barrel 19 keyed or splined to the shaft 1, has its pistons 17 in engagement with a flange 9 on the shaft 1. The cylinder spaces 23, 24 of the barrel 20 are connected to cylinder spaces 21, 22 of the barrel 19 and the flange 9 is disposed perpendicularly to the axes of the pistons 17 whereby these pistons do not reciprocate but merely balance the axial forces on the shaft 1 which act on the central ball bearing 8. The shaft is also supported on an outer rolling bearing 7. The bearing 8 may alternatively be a roller bearing without an inner race, the flange 9 abutting against a shoulder on the shaft 1; in this case the bearing 7 is a ball bearing.
Patent GB-349163-A (GB)
Title: Improvements in tyre chains
IPC: B60C27/06
Filed: 1930-03-06
Abstract: 349,163. Chain armour for pneumatic tyres. DESCARRIE, A., 314, Rosedale Street, Montreal, Canada. March 6, 1930, No. 7429. [Class 144 (ii).] A chair link for connecting the cross chains of a tyre chain or the like to the side chains comprises a U-shaped connecting member, the ends of which are bent over parallel to the sides to form hooks at an angle to the plane of the member, the hooks being parallel and in an opposite sense, the sides of the member being bent together at points just below the ends of the hooks and the points being in transverse alignment so as to close the bight of the U-shaped member. As shown, the bent ends are first inserted and turned so that the bent ends engage the link 1 of the side chain after which the U-shaped member is contracted below the bent ends at 7, thus being locked in place. Reference has been directed by the Comptroller to Specifications 10899/06, [Class 144, Wheels &c.], 1916/10 and 192,135, [both in Class 144 (ii), Wheel tyres, Pneumatic &c.].
Patent GB-1148858-A (GB)
Title: Improvements in or relating to pipethanate alkyl halides
IPC: C07D295/088
Filed: 1968-02-15
Abstract: 1,148,858. Improvements in or relating to pipethanate alkyl halides. NIPPON SHINYAKU CO. Ltd. 15 Feb., 1968 [26 Oct., 1967], No. 7451/68. Heading C2C. The invention comprises of novel pipethanate alkyl halides of the general formula where R is an alkyl group having two or more carbon atoms and X is a halogen atom and a process for preparing pipethanate alkyl halides which comprises of reacting anhydrous pipethanate, which may be prepared by dehydrating pipethenate under reduced pressure and at elevated temperature preferably between 100‹ to 110‹ C., with an alkyl halide, e.g. in the presence of a solvent by either refluxing in a water bath or heating the reactants at 100- 110‹ C. for from 7 to 40 hours.
Patent GB-822346-A (GB)
Title: Improvements in and relating to barrel filling equipment
Inventor: WALFORD MICHAEL ARTHUR HOWARD
IPC: B67C3/30
Filed: 1956-03-09
Abstract: 822,346. Filling barrels. PLENTY & SON Ltd. March 11, 1957 [March 9, 1956], No. 7469/56. Class 21. Barrel-filling apparatus comprises a delivery pipe attached to a reversible pump and extendable relative to a fixed portion of the apparatus to enter a barrel ; reversal of the pump retracts the pipe and exhausts the apparatus. A pipe 10 having a spring-loaded non-return nozzle 30 passes through a fixed cylinder 12 and a piston 18 to which it is secured ; a pump connection 20 has branches 22, 24 leading respectively to the pipe 10 and the upper part of the cylinder 12, the latter branch being fitted with a non- return valve 26. Pressure on a handle 36 opens a valve 38 to allow liquid from a header tank to flow through pipes 40 and 42 into the cylinder 12 so that the pipe 10 is extended as required ; the pump then forces the liquid through the nozzle 30 into a barrel 28. On reversal of the pump, the valve 26 opens and the liquid is exhausted from the cylinder 12 and pipe 10 so that the piston 18 moves upwards, retracting the pipe 10 : on reaching the cylinder top a disc valve 32 closes an opening leading to the branch 24, thus the piston and pipe are held retracted.
Patent GB-457367-A (GB)
Title: Improvements in or relating to supply arrangements for welding apparatus
IPC: B23K9/10
Filed: 1936-03-12
Abstract: 457,367. Transformers; supply systems for welding arcs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 12, 1936, Nos. 7529 and 7530. Convention dates, March 13, 1935 and Aug. 14, 1935. [Classes 38 (ii) and 38 (iv)] [See also Group XXXVI] Comprises a polyphase transformer particularly for welding in which means are provided for changing the primary and secondary connections to enable it to be used as a single phase transformer. Fig. 1 shows an arrangement in which welding electrodes 7, 8 may be supplied with single phase A.C. or with D.C. through rectifying valves 1, 2. When the switches 4, 5 are in the position shown the primary windings are in Scott connection to give two-phase secondary voltages. When the switches are reversed the primaries are connected in parallel to a single phase and parts of the secondaries are connected in parallel through tightly coupled windings S8, S9 to supply the electrode with A.C. The transformer may be provided with magnetic shunts. In a modification shown in Fig. 2, the primary windings are in parts which are connected through the switch 4 to the terminals U, V, Wand Z, Y, X. This enables different supply voltages to be used. The supply is connected to U, V, W. By shorting X, Y, Z the windings are in star connection and by connecting U, V, W to Z, Y, X respectively the windings are in delta connection. A further modification is shown in Fig. 7 in which the connections of the valves 1, 2 and transformers 11, 12 are arranged such that if the electrode leads 40, 41 are plugged into the terminals K3, K4, A.C. is obtained and the valves 1, 2 are out of action, and if the leads 40, 41 are plugged into the terminals K1, K2, D.C. will be obtained. A switching system for changing the winding connections for different voltages is also described. Fig. 9 shows a construction of the terminal K3, K4. The contact 32 is connected to a bolt 49 which is insulated from the contacts 30, 31, the bolt having a conductive ring 45. When the coupling member 40 is inserted, the three contacts are connected together.
Patent GB-1286797-A (GB)
Title: Improvements in or relating to binding appliances
IPC: F16L3/233
Filed: 1970-02-17
Abstract: 1286797 Binding strap PAUL HELLERMAN GmbH 17 Feb 1970 [28 Feb 1969] 7557/70 Heading E2B [Also in Division B8] A binding appliance comprises a strip 1 of flexible material and a retaining member 4 for securing end portions of the strip surrounding an article to be bound, the retaining member having a slot for receiving each end portion of the strip, an aperture extending at right angles to the slots and a pin 11 displaceable in the aperture and through the slots to displace and clamp the end portions of the strips therein, the slots being separated by a dividing wall 6. The aperture in the dividing wall 6 has a diameter intermediate in size to that of a wall 7 and of a wall 8. The aperture in the wall 8 is partly cylindrical and is open on one side. The strip has an edge bead at each side and the slots have a similar shape in cross section. The retaining member 4 and the strip 1 may be made of plastics.
Patent GB-985376-A (GB)
Title: Clamping arrangement for a synthetic resin bolt
Inventor: GAUCH OTTMAR
IPC: F16B7/02
Filed: 1964-02-24
Abstract: 985,376. Bolting. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Feb. 24, 1964, No. 7558/64, Heading F2H A bolt 1 made of synthetic resin is locked to a structural metal member 7 by fitting over the bolt an externally threaded sleeve 2 which has a conical bore at the end farthest from the member 7 and by forcing a number of sectorshaped conical sections 4 into the wedgeshaped gap between the sleeve and the bolt by pressure exerted by a locking nut 3 engaging with the thread on the sleeve 2, the bolt then being fixed in position in the member 7 by tightening the nut 5 on the washer 6.
Patent GB-292258-A (GB)
Title: Improvements in and relating to surface condensers
IPC: F28F19/00
Filed: 1927-03-18
Abstract: 292,258. Parsons, Sir C. A. March 18, 1927. Headers.-The crosssectional area of the inlet water duct b of a surface condenser is increased until comparable with that of the header c to decrease turbulence. Baffles f may also be used or a screen as described in Specification 258,912.
Patent GB-598295-A (GB)
Title: An improved means of automatically removing ferrous and other magnetic particles from liquid
IPC: B03C1/12
Filed: 1944-04-25
Abstract: 598,295. Magnetic separators. SCRIVENER, Ltd., A., and SCRIVENER, A. April 25, 1944, No. 7645. [Class 72] In apparatus for removing magnetic particles from liquid, a rotatable magnetic disc a having inset therein a plurality of permanent magnets b is partially submerged in a restricted channel g<SP>1</SP> forming part of a liquid container g and is rotated by gearing c from a driven shaft d. Ferrous particles adhering to the magnets bare removed by two downwardly inclined non- magnetic scrapers or wipers h, one on each side of the disc, the material removed being directed into a container j. The scrapers may be of angle or channel section to form a trough. The apparatus constitutes a self-contained assembly unit for use in connection with metal cutting and grinding mechanism. Specification 570,355 is referred to.