baber/WOPTO huggingface dataset:
Patent GB-744546-A (GB)
Title: Vehicle, especially for agriculture work
IPC: A01D34/04
Filed: 1953-07-16
Abstract: 744,546. Tractors. KOSTER, J. July 16, 1953 [July 18, 1952], No. 19768/53. Classes 79 (1), 79 (2), 79 (3) and 79 (5). A motor vehicle for agricultural purposes comprises an axle unit 33, 34 pivotable relative to the chassis frame about a vertical axis 32 (Fig. 9), an engine (not shown) and a change-speed gearbox A, the output of which is adapted to be transmitted optionally to either or both of two shafts 5, 6, by means of a clutch 4, the shaft 5 being in operative engagement with the drive shaft 321 of a differential gear driving half shafts 1, 2 of the axle unit 33, 34, the shaft 6 having coupling means (Fig. 5, not shown) for the connection of a transmission shaft, means (not shown) being provided on the chassis frame for releasably securing a second axle unit having a differential gear connected to the transmission shaft. The shaft 5 drives the half shafts 1, 2 via a bevel gear and a gear 7, 8 carried by the shaft 32 of the differential gear B. The casing 33, 34 of the half shafts is mounted for steering rotation by bearings 31. A toothed sector 37a is secured by members 37 to the casing 33, 34, and is driven via pinion 38, and chain-coupled sprockets 38a, 40, from a steering column 42. The transmission shaft may be coupled to the shaft 6 by means of a screw coupling and securing cotter pin (Fig. 5, not shown). The length of the transmission shaft and of the longitudinal members of the vehicle may be varied to determine the length of vehicle desired (Figs. 1, 2, not shown). Alternatively, the rear wheel may be dispensed with. The shaft 6 may drive a shaft 17 through a train of gears. The shaft 17 is connected at the front (as shown), or at the rear with a flywheel 18 having a crank-pin 19 for driving implements such as the knives of a mower. If the drive is taken from the rear end of the shaft 17, the mower is mounted rearwardly Fig. 2, not shown).
Patent GB-243673-A (GB)
Title: Improvements in electric flashlights
IPC: F21V21/00
Filed: 1925-08-06
Abstract: 243,673. National Carbon Go., Inc., (Assignees of Jones, H. W.). Dec. 1, 1924, [Convention date]. Supporting, - A flashlight comprises a screwed cap 17 provided with a circular recess 20 to receive a circular pivoted ring 18 utilized as a hanger. Small projections 25 on the cap retain the ring 18 in its closed position, the resiliency of the ring sufficing to enable it to be sprung over the projections.
Patent GB-897845-A (GB)
Title: A compound heat-insulating building or like element
IPC: E06B3/66
Filed: 1958-06-20
Abstract: 897,845. Composite glass &c. elements. PARTSCH, E. June 20, 1958 [June 25, 1957], No. 19867/58. Drawings to Specification. Class 20(3) A composite glass &c. element comprises two sheets of glass or plastic spaced apart by a gas, such as CCl 2 F 2 , and one sheet is made reflecting by coating it with copper or gold. In a modification, one sheet is made of filtering glass. The element may be surrounded by a metal frame.
Patent GB-935398-A (GB)
Title: Process for preparing esters of alkyl nitrophenols useful as fungicides
Inventor: CANO FRANCO
IPC: C07C205/43
Filed: 1961-06-02
Abstract: The invention comprises alkyl dinitrophenol esters of the formula:- <FORM:0935398/IV(a)/1> wherein X represents a C9-12 alkyl radical and R represents a C3-4 alkyl radical.  The compounds are prepared by reacting an alkyl dinitrophenol of the formula:- <FORM:0935398/IV(a)/2> with an alkanoic acid chloride of the formula R.COCl, the reaction being preferably conducted in the presence of an acid binding agent in an organic solvent and at a temperature of between 30 DEG  and 50 DEG C.  Alkyl dinitrophenol starting materials are prepared by nitration of the corresponding alkylphenols.ALSO:A fungicidal composition comprises an alkyl dinitrophenol ester of the formula <FORM:0935398/VI/1> wherein X represents a C9-12 alkyl radical and R represents a C3-4 alkyl radical, together with a carrier such as a diatomaceous earth, talc, pyrophyllite, calcium carbonate, water, or an aliphatic or aromatic hydrocarbon.  The compositions may contain other fungicides, insecticides or pesticides, surface-active agents or emulsifying agents.
Patent GB-658596-A (GB)
Title: A new or improved wheeled carrier for golf-clubs
IPC: B62B1/04
Filed: 1949-08-02
Abstract: 658,596. Collapsable vehicles. WEATHERSHIELDS, Ltd., and SMITH, H. A. G. Aug. 2,1949, No. 20082. [Class 108(i)] A collapsable golf-bag carrier (Fig. 1), comprises a back-bone 1 to which is secured a pressing 21 to accommodate the curved legs 18 carrying wheels 17. The handle 7 is pivotally connected at 14 to a clip 11 secured to the back-bone 1 and also has connected to it at 27 two links 19 which are connected at their other ends to the legs 18 so that pivoting the handle 7 downwardly will cause the legs 18 to turn in the sockets 20 to collapse the carrier. A modification in which the wheels 117 are attached to the members 119 is shown in Fig. 3.
Patent GB-499218-A (GB)
Title: Improvements in or relating to electron discharge device circuit arrangements for use on very high frequencies
IPC: H01J25/76
Filed: 1937-07-20
Abstract: 499,218. Electron - oscillators ; electron multipliers and circuits therefor. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. July 20, 1937, No. 20086. [Classes 39 (i) and 40 (v)] In a high-frequency discharge device the electrons, after passing a control grid, strike one or more secondarily emitting surfaces and then pass to the anode, the arrangement being such that the effective transit time from the control grid to the anode is equal to the desired frequency, or is a multi - ple thereof. In the arrangement shown in Fig. 1, the control grid is fine-mesh cylinder 3 coaxial with a filamentary cathode 2, and the anode is an open-mesh grid 4 surrounded by the secondarily emissive surface 5. The grid is connected to the cathode through a resistance 6 and to the anode through a condenser 7 and an oscillatory circuit 8 tuned to the required frequency. A positive potential, (e.g. 400 volts relatively to the cathode) is applied to a centre tap 10 of the inductance of the circuit 8 and a lower potential (e.g. 200 volts) to the surface 5. In the arrangement shown in Fig. 2, the cathode 2 is enclosed in a channel 12 forming part of a plate 13 and closed by the grid 3a. One or more secondarily emissive surfaces are arranged coplanar with the plate 13. Under the influence of field places 14, 15 and a magnetic field the electrons traverse paths such as that indicated by the dotted lines and strike the anode 4a. The connections are similar to those described with respect to Fig. 1.
Patent GB-516784-A (GB)
Title: Improvements in or relating to copying and engraving machines
IPC: B44B1/04
Filed: 1938-07-07
Abstract: 516,784. Milling and engraving machines. DECKEL, F. July 7, 1938, No. 20148. Convention date, Aug. 3, 1937. [Class 83 (iii)] A copying, milling or engraving machine having a tracer and cutter mounted on a pantograph has a lever universally pivoted on a fixed point of the machine and connected to the tracer and cutter, the pantograph being supported on the machine so as to be movable transversely to its plane and parallel to itself and the tracer or the cutter being rigidly attached to the pantograph whilst the other is movable transversely to the plane thereof. The pantograph 5 ... 7 is mounted on a vertical pivot 8 carried by a slide 3 freely movable on a vertical guide 2 attached to the machine frame 1, the rotary cutter 10 driven by means such as an electric motor (not shown), being rigidly secured in a holder 9 and the tracer 11 being freely slidable through a guide 12. The lever 13 is freely supported on perpendicular axes 14, 15 coinciding with the axis 8 and attached to the frame 1, is freely slidable through its support and a sleeve 16 on the tool holder 9, and is pivoted at 17 to the tracer. Vertical movement of the tracer is thereby transmitted to the pantograph and the cutter, as well as horizontal movement and the weight of the pantograph assists in damping out vibrations. The tracer may be rigid with the pantograph and the cutter axially movable thereon, and the cutter and tracer may be interchanged for producing enlarged work. The lever 13 may be fixedly pivoted at 14 and slidable through a pivot at 17, and the cutter holder 9 is adjustable along the arm 6 for varying the ratio of reproduction. For single plane engraving the tracer may be rigidly clamped to the pantograph at 12 or the lever 13 may be removed and the slide 3 fixed to its guide 2. Balancing parts.-The pantograph 5... 7 may be wholly or partially balanced vertically by means of springs or weights.
Patent GB-1467256-A (GB)
Title: Flip top box
IPC: B65D5/54
Filed: 1974-04-29
Abstract: 1467256 Flip-topped cartons DRG PACKAGING Ltd 29 April 1974 [27 April 1973] 20239/73 Heading B8P A flip-topped box which comprises, after assembly, a body part having front, base, back and side walls (e.g. 10, 26 &c.) and a lid part having front, top and side walls (e.g. 18, 34 &c.), the lid being hinged to the backwall of the body and such as to fit outside the upper portions of the front and side walls of the body part, is formed from a blank comprising an array of foldable panels, the blank being suitable for side loading prior to closure of the side flaps and being assembled by first adhering the inner face of the front panel 18 of the lid to an extension panel 22 hinged downwards from the upper edge of the front body wall 10 to form the required sleeve for side loading, the extension panel being provided with a transverse rupturable line of weakness whereby the box is initially opened by rupturing said line of weakness.
Patent GB-216742-A (GB)
Title: Improvements in safety razors
IPC: B26B21/18
Filed: 1923-08-09
Abstract: 216,742. Moderegger, J. Aug. 9, 1923. Razors, safety. In a safety razor adapted for shaving concave surfaces, the peripheries of the blade and guard plate comprise straight operative portions connected by curved laterally-projecting inoperative portions. As shown the straight edges a, a of the blade and guard merge into semicircular inoperative portions d, b respectively.
Patent GB-439579-A (GB)
Title: Improvements in or relating to phototelegraphic, telecinematographic television and like systems
IPC: H04N5/84
Filed: 1934-07-10
Abstract: 439,579. Photographic developing processes. WEST, A. G. D., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. July 10, 1934, No. 20262. [Class 98 (ii)] [See also Group XL] An intermediate photographic record for television is produced by a reversal process. A dense negative is obtained by more than normal exposure and development and is reversed to give a record of low mean density. The maximum density is of the order of 0À8. The contrast of the image corresponds with a gamma materially less than unity. The processing of one part of the film and the exposure of another are effected simultaneously. Specification 412,126, [Group XL], is referred to.
Patent GB-1332843-A (GB)
Title: Internally moderated heat sources and method of production
IPC: G21H1/10
Filed: 1971-04-19
Abstract: 1332843 Utilizing energy of radiation SANDERS NUCLEAR CORP 19 April 1971 [27 Jan 1970] 20286/71 Heading G6P A radioisotopic thermal power source is formed of thuliun, cobalt or erbium hydrides contained within a metal casing. The hydrogen functions as a moderator during irradiation of the source in a nuclear reactor and reduces flux depression. The metal of the casing has a low thermal reaction absorption cross-section and a short neutron activation product half life, and may comprise molybdenum, zirconium, tungsten or tantalum.
Patent GB-305905-A (GB)
Title: An improved wrapper for bottles
IPC: B65D65/40
Filed: 1928-07-12
Abstract: 305,905. Wilkinson, T. July 12, 1928. Wrappers. - A wrapper for wine. spirit, &c. bottles comprises a rectangular sheet a of paper reinforced bv a smaller rectangular sheet b of corrugated card placed diagonally upon it and by circular or oval discs c &c. disposed at opposite ends of the sheet of card. If the package is to be square in section, the rectangular sheet of card is creased or cut transversely into four panels and the discs are replaced by square continuations of one of the inner panels.
Patent GB-218863-A (GB)
Title: Improved method of and means for grinding or polishing lenses or the like
IPC: B24B13/02
Filed: 1923-08-09
Abstract: 218,863. Optische Anstalt C.P. Goerz Akt.-Ges., Goerz, P., and Jacobi, E. Aug. 9, 1923. Lenses, grinding and polishing; rotating tool apparatus.-In a machine for grinding or polishing lenses &c. the lens and grinding &c. surface are pressed together by centrifugal force. As shown in Fig. 1, the abrasive tool 7 has an inner annular operative surface and is carried by a pin 6 mounted in a rotating support 2 and rotated through gear-wheels 3, 5 by a stationary gearwheel 4 mounted coaxially with the support 2. The speed of rotation is adjusted so that the lens 8, which is pressed by centrifugal force against the tool, remains stationary, or in the case of a spherical lens, rolls about its main axis with its edge in contact with a flange 9 on the tool. The outer annular surface of the tool may be employed as the abrasive surface, as shown in Fig. 3, the lenses 16, 19 being mounted on arms 12, 13 pivoted on the support 2, the arms being pressed radially of the tool by the centrifugal force of a weight 17 and of the arm 13 respectively. In a modification, the tool is driven by means of a friction disc and a flanged carrier in place of the gear wheels. The tool may have several concentric operative surfaces of different curvature, or mav have a flat horizontal surface and a verticalannular surface. Spherical lenses may be ground on an internal cylindrical surface, the blanks having an initial curvature greater than that of the cylindrical surface.
Patent GB-1533929-A (GB)
Title: Most restrictive digital to analogue converter
IPC: G06J1/00
Filed: 1976-05-17
Abstract: 1533929 Digital to analogue conversion WESTINGHOUSE AIR BRAKE CO 17 May 1976 [27 May 1975] 20334/76 Heading H3H A d#a converter accepts two inputs each marking one out of a plurality of lines C 0#n  L 0#n , the output of a negative-feedback operational amplifier being determined by the marked line which tends to produce the lowest output. In the embodiment voltage V + is applied to one C and one L line to respective resistors and diodes, e.g. C 0 , R 1 , DLO, leading to point PO being clamped by DCO to B +. Current I, flows through RSO and RB = RSO to B-, thus the output at O = zero. If, however C 1 , R 3 , DL2 make P 1  clamp to B+ then I 3  = current at O = I 2  - I 1  = B+/ RS1 + RSO. Higher lines such as L 2 , L n  have no effect since P 2  or P n  will also be clamped to B +. The device is described in relation to railway control with one input being driver control, the other trackside, the device choosing the lower switched speed.
Patent GB-776970-A (GB)
Title: Improvements in and relating to ceramic-to-metal bonds
IPC: C04B37/02
Filed: 1953-07-22
Abstract: A ceramic surface is coated with not more than 15 mgs per sq cm. of a molybdenum oxide, a tungsten oxide or a mixture thereof, the ceramic is fired in a reducing atmosphere at 900-1750 DEG C., and a metal member is soldered or brazed to the metal surface formed by firing, by the use of a solder or brazing metal comprising Ag, Pb, Cu, Ni, In, Sn, Zn, Cd or an alloy thereof by further firing in a reducing atmosphere at a temperature above the melting point of the solder or brazing metal but below the melting point of the metal member.  The ceramic surface may be glazed.  The oxide, which is preferably MoO3 or WO3, suspended in water, varnish, nitrocellulose lacquer, a natural or synthetic resin, gum or wax is applied to the ceramic by brushing or spraying; the oxide may be mixed with metallic W, Mo, Cu, Ni or Fe.  The reducing atmosphere may be of hydrogen, preferably first bubbled through water, or a mixture of hydrogen with nitrogen and ammonia.  Prior to soldering or brazing, the metallized ceramic may be coated with Cu or Ni, e.g. by applying cuprous oxide suspended in a liquid and firing at 900-1200 DEG C.  Copper brazing may be carried out in hydrogen at 1125-1150 DEG C.; eutectic silver-copper brazing at 850-900 DEG C.  Specification 626,357 is referred to.
Patent GB-247472-A (GB)
Title: Improvements in or relating to drill bits
IPC: E21B10/44
Filed: 1925-08-13
Abstract: 247,472. Black, L. C. Aug. 13, 1925. Borehole apparatus.-A rotary drill bit for use in drilling oil wells comprises a helicoidal blade 3 terminating in two diametrical cutting edges 21 and formed integral with a head 2. The blade is formed of a tough steel alloy, such as manganese steel, incapable of being machined, and is attached to a shank 6 of steel or wrought iron by means of a wedge-shaped projection 8 on the latter engaging a recess 4 in the head 2. A sleeve 9 screwed on the shank abuts against shoulders 10 on the head to tighten the wedge and engages a circular projection a to prevent lateral displacement, the thread being left-handed for a right hand drill. The shank is also screw-threaded at 11 for attachment to a drilling tube and has an axial hole 12 registering with a hole 13 in the bit for the supply of water or mud to the cutting edges, to which it is led directly by a pipe screwing in the lower end of the hole 12 and passing through a hollow boss 14 in the bit. The inclination of the blade is such that acute cutting edges 21 are maintained by axial wear of the blade and the helix is of uniform diameter so that the edges have a reaming action.
Patent GB-828609-A (GB)
Title: Improvements relating to scaffolding
Inventor: DUBOIS WALTER MARCEL
IPC: E04G7/30
Filed: 1955-07-14
Abstract: 828,609. Scaffolding. BRITISH BUILDING & ENGINEERING APPLIANCES Ltd, July 16, 1956 [July 14, 1955], No. 20442/55. Class 20(2) A scaffold tube 12 is secured in the corner defined by the junction or crossing of two further scaffold members 10, 11 by means of a cradle having one part 16 articulated to the member 10 and movable in a plane parallel to the members 10, 11 from an open position, shown in chain lines, wherein the tube 12 can be introduced into the corner defined by the members 10, 11, to a position wherein it spans the corner and co-operates with a part 14 of the cradle fixed to the member 11, the parts 14, 16 being apertured to receive a wedge 27 which when driven home forces the part 16 against the member 12 which is thereby clamped against the members 10, 11. The cradle part 16 has a portion 18 of concave form, which in the open position of the part 16, provides a ledge on which the member 12 can be laid preparatory to closing the cradle member. The wedge 27 is captive with respect to either the fixed or the movable part of the cradle.
Patent GB-185600-A (GB)
Title: Improvements in and relating to cooking and baking apparatus
IPC: F24B1/00
Filed: 1921-07-30
Abstract: 185,600. Lehmann, F. July 30, 1921. Ovens ; baffles.-Cooking-apparatus for use with gas and electric stoves comprises a substantially cylindrical body 1 with a cover 2 in which the food-containing vessels are placed, being supported on a non-conductung baffle which in the form shown in Fig. 1 comprises .a hollow metal body 7 filled with insulating- material and having ribs 10 on the upper surface to reduce the area of contact with the cooking-vessel. For use with gas or like stoves, the bottom of the body 1 is of truncated conical form, Fig. 1, having openings 5 for the hot gases and a central recess 3, in which is a layer of insulating material 8 beneath the baffle 7. The escape of the gases is controlled by a series of hit-and-miss openings 11, 12 in the flange of the lid 2 and the body 1. In a modification, the baffle is hollow and pierced for the passage of air, hollow air-tight chambers being provided beneath it. Fig. 3 shows a form for use on electric stoves, having a flat bottom on which rests an apertured flange 35 supporting the hollow baffle 34, which is pierced with holes 40. The baffle may be filled with insulating material.
Patent GB-358503-A (GB)
Title: Heat meter in which the quantity of the heat medium flowing through and the temperature difference proportional to its specific energy content are supervised
IPC: G01K17/18
Filed: 1930-07-05
Abstract: 358,503. Measuring heat quantities. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. July. 5, 1930, No. 20466. Convention date, July 6, 1929. [Class 97 (iii).] Counter gearing indicating the quantity of heat carried by a fluid is driven by a pivoted oscillating member of which the frequency of movement depends on a quantity meter and the extent of movement depends on the continuously present throw of a temperature difference indicator. In the form shown, the temperature sensitive resistances or thermo couples 4, 5, in the supply and return conduits 1, 3 respectively are arranged in the bridge circuit 6 and deflect the pointer 11 of an electrical measuring instrument 7 in accordance with the difference in temperature between the fluid in the conduits 1, 3. A quantity meter 2, in the conduit 1 closes with each revolution a contact 8 in the circuit of an electromagnet 9. The armature 21 of the electromagnet 9 actuates through a lever 22 a spring-urged pivoted drop loop 10. The frequency of movement of the drop loop 10 thus depends on the quantity of fluid flowing in the conduit 1 and the extent of each movement is made by the engagement of a cam 12 on the drop loop with the needle 11 to depend on the temperature difference in the conduits 1, 3. A toothed segment 16 fixed to the drop loop is adapted through ratchet and pawl mechanism 18, 19 to actuate a counter 20. A temperature scale 14 may be provided to enable the needle 11 to indicate the temperature difference. The needle 11 may carry a recording pen adapted to contact with a clockwork driven paper strip with each drop loop movement. The quantity of fluid flowing may also be indicated separately by a tally actuated by the closures of the contact 8 or by the movements of the drop loop. In a modification in which errors due to running on of the ratchet wheel 18 after the termination of the pawl movement are eliminated, the upward return movements of the drop loop are measured and' the pawl movement is made to terminate always at a fixed point at which a stop engages the pawl 19 pressing it against and thus damping the motion of the ratchet wheel 18. The device may be used with hot water or steam heaters or in determinations of latent heat of gases.