baber/WOPTO huggingface dataset:
Patent GB-366354-A (GB)
Title: Improvements in and relating to the manufacture of mica products
IPC: H01B3/04
Filed: 1931-04-13
Abstract: Relates to mica sheets or other structures made by securing together flakes or laminations of mica by an adhesive, and consists in the production of flexible structures by using as the adhesive an alkyd resin so modified that it contains an oil glyceride such as a drying oil or an unsaturated oxidizable acid, e.g. acid prepared from drying oil, chemically combined therewith.  Such resins are described in Specification 284,349, [Class 95, Paints &c.].  Flexible mica sheet material so prepared can be used as electric insulation in numerous applications and is useful in the production of composite insulation, e.g. in the making of slot or cell insulation for direct-current motors, by combining such flexible mica with sheet fibre and glassine paper. Specifications 3271/13, 153,612, 203,232, [all in Class 70, Indiarubber &c.], and 344,401 also are referred to.
Patent GB-764324-A (GB)
Title: Cyclopentanopolyhydrophenanthrene compounds
IPC: C07J75/00
Filed: 1952-11-28
Abstract: The invention comprises D 7(8) or 8(14)-11-keto-cyclopentanopolyhydrophenanthrene compounds which compounds (a) are obtainable by reacting a D 8(9)-7,11-dihalogeno-cyclopentanopolyhydrophenanthrene compound having at rings B and C the formula <FORM:0764324/IV(b)/1> wherein X represents a halogen, with an aqueous solution of a metal salt which has a cation that forms water-insoluble halides and an anion that does not react with the cyclopentanopolyhydrophenanthrene compound, and (b) have at rings B and C one of the following formul <FORM:0764324/IV(b)/2> and <FORM:0764324/IV(b)/3> and the preparation thereof by the above process.  Suitable metal salts that may be used are sliver nitrate and mercurous nitrate. The process may be carried out in a water-miscible organic solvent such as acetone.  The above D 7(8) or 8(14)-11-keto compounds may be converted into D 8(9)-11-keto-cyclopentanopolyhydrophenanthrene compounds by treatment with a base, e.g. an alkali metal hydroxide, an alkali - earth metal hydroxide, ammonium hydroxide or an organic base such as a tertiary organic base-particularly pyridine.  The bases are preferably used in aqueous solution.  D 7(8)-or 8(14) - 11 - keto - cyclopentanopolyhydrophenanthrene compounds as defined above which may be prepared are D 7(8),22 or 8(14),22-11-keto-ergostadiene and the corresponding 3-acetoxy compound, D 7(8) or 8(14)-11-keto-cholestene and the corresponding 3-acetoxy compound, D 7(8),22 or 8(14),22 - 3 - acetoxy - 11 - keto - stigmastadiene, D 7(8) or 8(14) - 3 - acetoxy - 11 - keto - cholenic, and -bisnorallocholenic acid, D 7(8) or 8(14) - 3 - acetoxy - 11,20 - diketo - allopregnene, and D 7(8) or 8(14) - 11 - keto - dehydrotigogenin acetate.  One detailed example is given.
Patent GB-1132677-A (GB)
Title: Process for the production of lubricating oil
IPC: C10G73/44
Filed: 1967-03-08
Abstract: 1,132,677. Hydrofinishing. GULF RESEARCH & DEVELOPMENT CO. 8 March, 1967 [11 March, 1966(2)], No. 10988/67. Heading C5E. A process for the production of a lubricating oil from a lubricating oil base stock containing at least 0À75 per cent sulphur comprises subjecting the base stock to hydrofinishing by contacting it with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions of temperature, pressure and space velocity and then subjecting the hydrofinished base stock to a solvent dewaxing treatment. The hydrogenation catalyst may be a Group VI or Group VIII metal or its oxide or sulphide, alone or on a carrier; examples are Ni, Co, and Mo on alumina and Ni and W on alumina. Up to 5% silica may be included. The dewaxing solvent may be a mixture of toluene and methyl ethyl ketone.
Patent GB-197815-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/00
Filed: 1922-04-19
Abstract: 197,815. Macdonald, M. April 19, 1922. Golf clubs.-A golf club of the kind provided with a hollow head into which interchangeable weights may be adjustably fitted, is provided with a sliding cover on the upper side of the head and with an upstanding screw in the hollow a slotted weight or weights being adjustably fitted over the screw and secured by a nut. The cover c may be moved by a bar d or by a finger notch, and is retained by a spring-pressed ball f. The weights k are of oblong form.
Patent GB-673326-A (GB)
Title: Improvements in or relating to instructional or educational apparatus
IPC: G09B23/04
Filed: 1949-04-26
Abstract: 673,326. Appliances for teaching drawing and geometry. MURRAY, G. L. April 24, 1950 [April 26, 1949], No. 11021/49. Classes 11 and 146 (ii). Instructional or educational apparatus for demonstrating three dimensional geometry and methods of projection comprises a rectangular member 2 to adjacent edges of which further members 1, 3 are hinged, each member representing a different plane and bearing a view of an object 4 appropriate to the positions of the planes in their three dimensional association, such members being capable of being opened out into a single plane to represent a sheet of paper showing the correct positions of the respective views. In the example the object or model 4 comprises a rectangular parallelopiped having circular-, triangular-, and square-section projections 4a, 4b and 4c respectively. The base panel 1 bears a plan 5, the back panel 2 a front elevation 6 and the right-hand end panel 3 an end view 7 (looking on the triangular projection 4b) of the object. When opened out into the plane of the base 1, the three panels 1, 2, 3 represent first angle or English projection. A further three panels 11, 12, 13 bear views corresponding to those on the panels 1, 2, 3 respectively and are hinged together to open out into the plane of the top panel 11. They represent third angle or American projection. Four rods 10 are mounted in the base 1 and the top panel is removably mounted on reduced upper extensions 10a thereof. Preferably the panels 1, 2, 3 are opaque and the panels 11, 12, 13 transparent, but all six may be the same. The views may be permanently inscribed or printed on the panels or they may comprise prints fixed to but readily removable from the panels for exchange with another set appropriate to a different object or model 4. The model 4 is carried on a stem 21 received in an aperture in the base.
Patent GB-581481-A (GB)
Title: Improvements in or relating to thermionic devices for use with dielectric wave guides
IPC: H01J25/22
Filed: 1941-08-29
Abstract: 581,481. Electron oscillators ; wave guides. STANDARD TELEPHONES & CABLES, Ltd., and TOMLIN, S. G. Aug. 29, 1941, No. 11078. [Classes 39 (i) and 40 (v)] Electron discharge apparatus for generating electromagnetic waves in a dielectric guide 1 having a portion with one end closed, as by a piston P, and the other end adapted for passage of the waves, as through apertured diaphragm D to sectoral horn M, comprises means for generating and projecting an original beam of electrons across the portion at a field antinode and in a direction parallel to the electric field, and means for deriving from the original beam a second electron beam adapted to be projected across the portion of the guide in the opposite direction. The beam from cathode K and grid G is velocity modulated in the gap 0 marked off by fins F extending into the guide towards aperture Q. On arriving at the final electrode A, the beam may (a) be entirely repelled so that the now bunched stream repasses the gap 0 in time to deliver up energy to the guide, (b) be separated into fast electrons which are collected and slow electrons which return to deliver energy to the guide, or (c) strike the electrode A at a velocity sufficient to generate a bunched stream of secondary electrons, which returns to deliver energy to the guide. In case (b) the transit time from O to A and back is n+¢ periods ; in case (c) it may be n periods. In a modification, a metal septum M, Fig. 2A, extends horizontally across the centre of the guide and supports the fins T between two gaps O1, O2. In the H10 type wave used the equipotential lines are horizontal so that the septum does not disturb the wave. The electric field is in the same direction at both gaps so that if the beam is to be velocity modulated at O1 and deliver energy at 02, the transit time should be n- periods. By adjusting the potential of electrode A or of a grid placed before it so as to work on a curved characteristic, the device may function as a rectifier, while at the same time the repelled electrons returning to the guide produce regeneration. By tuning the guide to a wave length slightly different from that falling upon the horn M, a rectified output at the difference frequency is obtained. In a modification, two guides are traversed in succession by the same beam, the first receiving the incoming wave and the second producing the local oscillation and rectifying the resultant mixed frequency. The wave-guides may be circular and may have an axial conductor. If the E11 or E10 modes are used, the fins F or T may be dispensed with, as the field in the centre is small. A formula is given for the best relation between breadth and thickness of a rectangular guide for a given wave-length. The guides may be tuned by compressing the sides. Where there are several antinodes a separate beam may traverse the guide at each of them. A magnet NS concentrates the beam.
Patent GB-1065772-A (GB)
Title: Electrical devices
IPC: G11B9/08
Filed: 1964-03-16
Abstract: A semi-conductor device comprises an insulating body in contact with which is placed a body consisting of a mixture of at least a semi-conductor material and an insulating material.  If such an assembly is placed between oppositely charged electrodes the outer face of the insulating body acquires a charge opposite to that of the electrode with which it is in contact while the presence of semi-conducting material in the body of mixture allows it to receive charges from the second electrode and thus take on the same polarity as that electrode. Consequently the whole assembly acquires a similar charge.  It is stated that the principle can be applied to improve the light output of electroluminescent devices in which an electroluminescent phosphor such as ZnO is dispersed in a dielectric. The brightness may be increased by including a semi-conductor material in the electroluminescent layer but it is further increased by the use of a layer of insulator such as BaTiO3. Semi-conductor materials referred to are Se, Cu2O, ZnO, NiO, PbO, Si, Ge, CdS, ZnSe and anthracene.
Patent GB-279716-A (GB)
Title: Improvements relating to vibratory electro-responsive devices
IPC: H01H51/32
Filed: 1927-04-26
Abstract: 279,716. Stewart, J. F., (Allgemeine Electricitõts Ges.). April 26, 1927. Receivers; optical and photographic recorders. - An electromagnetically - vibrated reed 2, when the amplitude of its vibration is adequate, controls the movement of a light ray for direct or indirect recording purposes or operates a trigger or latch. As shown applied to the closing of relay contacts, the reed which is secured to the polarized magnet 1 is set into vibration by A.C. excitation of the coils 6, 7 on the magnets 5. The reed may be tuned to the same frequency as the exciting current. When the excitation is adequate, the amplitude of vibration of the reed, which is enclosed in a funnel-shaped member 8, is sufficient to produce from both sides of the reed a pneumatic force on the plate 10 to push the plate upwards and close the relay contacts.
Patent GB-1379955-A (GB)
Title: Ultrasonic transducer
IPC: B06B1/06
Filed: 1972-03-10
Abstract: 1379955 Seaming non-metallic sheet material EASTMAN KODAK CO 10 March 1972 [11 March 1971] 11214/72 Heading B5K [Also in Division H4] An ultrasonic transducer comprises (Fig. 1) a metal rear mass 11, a first piezoelectric vibration generator 15, a metal separator 19, a second piezoelectric vibration generator 17 arranged so as to expand axially during axial contraction of the generator 15 and a metal output member comprising a front mass 13. The components are so dimensioned so that, when the transducer is operated at a predetermined frequency, the ends thereof are at antinodes (A) of the vibrations, and the vibration generators 15, 17 are at nodes (N) separated by #/2. Preferably a horn 25 is formed integral with or attached to the front mass 13. The components are preferably cylindrical and are clamped together by a central bolt 27, by a number of peripheral bolts or by a surrounding tension shell. Masses 11 and 13 and the separator 19 are of the same or different metals, e.g. aluminium, titanium or steel. If different metals are used, the rear mass 11 has the greater or greatest density, the separator 19 has a density less than the rear mass 11 and the front mass 13 has a density the same as, or less than, the separator 19. One construction has a combined horn 21 and front mass 13 of titanium, an aluminium separator 19 and a steel back mass 11. If desired, the separator 19 may comprise two elements (35, 37) Fig. 3 (not shown), of equal dimensions, the rear element 35 being of light weight metal (titanium or aluminium) and the front element 37 being of relatively heavy metal (steel). The piezoelectric generators 15, 17 are of barium titanate or lead zirconate-titanate. The shoulder 23 is at a node. Heat generated by the piezoelectric generators 15, 17 is removed by conduction through members 11, 19 and 13. In an alternative construction (Fig. 2, not shown) each piezoelectric vibration generator comprises a pair of piezoelectric discs (15<SP>1</SP>, 161 and 17<SP>1</SP>, 18<SP>1</SP>) with a metal plate (31, 33) between these discs. The plates (31, 33) are connected to one side of an energizing circuit and the members 11, 19, 13 are connected to the other side of the circuit. For dissipating heat produced in the piezoelectric generators 15<SP>11</SP>, 17<SP>11</SP> (Fig. 4) the separator 19<SP>11</SP> may carry longitudinally extending radial cooling fins 39. Circumferential fins could also be used. The transducer T is mounted within a cylindrical housing 40 by a mounting plate 41 provided with circumferentially extending overlapping slots 43, 45 (see also Fig. 5, not shown). Cool air is circulated through an inlet 49 to outlet slots 43, 45. Preferably the housing 40 is supported by a second mounting plate 50. The plates 41, 50 are at vibration nodes. One application is the splicing of webs of plastics material.
Patent GB-851794-A (GB)
Title: Beam type axle mountings of self propelled land vehicles
Inventor: MARTINDALE ANTHONY FEATHERSTON
IPC: B60G11/42
Filed: 1958-04-09
Abstract: 851,794. Preventing lateral canting. ROLLSROYCE Ltd. April 9, 1959 [April 9, 1958], No. 11314/58. Class 108(2). In a road vehicle suspension system in which rear wheels 16, 18, Fig. 1, are suspended by means of leaf springs 22, 24 from a chassis 10, 12, a bush 28, which supports the forward end of the spring 22, has a spigot 32, Fig. 2a, which is eccentrically located. The spigot of the corresponding bush on the opposite side of the vehicle is centrally located. Thus, the forward resiliency of the bush 28 is greater than that of the corresponding bush on the left-hand side of the vehicle. This extra forward resiliency allows the right-hand side road wheel 16 to move forwardly under the driving thrust and correct a tendency for the vehicle to roll due to the torque reaction as the vehicle is accelerated. The bushes may be replaced by other resilient means having the same characteristics.
Patent GB-658437-A (GB)
Title: Improvements relating to trawling gear
IPC: A01K73/04
Filed: 1949-04-28
Abstract: 658,437. Hooks. NISCHAN, K. April 28, 1949, No. 11361. Convention date, Nov. 16, 1948. Drawings to Specification. [Class 89(ii)] [Also in Group VI] To connect two chains together parts of both sides of one link in one of the chains are made narrow so as to pass through a gap cut in the side of one link of the other chain.
Patent GB-1209368-A (GB)
Title: Improvements in or relating to filters
Inventor: WALLER IVAN MARK
IPC: B01D21/00
Filed: 1968-03-08
Abstract: 1,209,368. Inward flow centrifugal filter. AUTOMOTIVE PRODUCTS CO. Ltd. 6 March, 1969 [8 March, 1968], No. 11437/68. 'Headings B1D and B2P. [Also in Division F2] A centrifugal filter is mounted on the crank shaft 11 of an I.C. engine and filters the oil in the engine lubrication circuit, which is pumped into space 17, 18, flows outwards through radial holes 19 into a space defined by casing 22, wherein centrifugal separation of heavy particles occurs, then inwards through an annular filter element 29, made of rayon fibres, randomly oriented and bonded by phenolic resin, to apertures 33 and back to the engine along the central passage of spindle 10, which screws into the end of the crankshaft. Reference has been directed by the Comptroller to Specification 1,160,337.
Patent GB-1281491-A (GB)
Title: Ignition distributor head for internal combustion engines
IPC: F02P7/02
Filed: 1971-04-27
Abstract: 1281491 Rotary distributors DUCELLIER & CIE 27 April 1971 [13 May 1970] 11513/71 Heading H1N An insulating ignition distributor cap with sleeves 2 for the reception of leads has in each sleeve 2 a conductive socket 5 having a strip 7 extending therefrom into the interior of the cap and the inner end 12 of each strip 7 is bent to locate socket 5 axially in its sleeve and to act as a contact stud for co-acting in use with a rotor arm. The inner ends of the strip can be engaged by a cam plate 14, Figs. 2, 5 (not shown), to set them at the required radial distances from the axis of the cap, cam plate 14 being used for setting purposes only and then removed from the cap.
Patent GB-372532-A (GB)
Title: Improvements in or relating to apparatus for grading gravel and the like materials
IPC: B07B1/42
Filed: 1931-04-20
Abstract: 372,532. Sifting - apparatus ; washing granular materials; feeding devices. CROSS, J., (known as CROSS, H.), Ditton Priors, Bridgnorth, Shropshire. April 20, 1931, No. 11629. [Classes 59, 82 (ii), and 117.] Apparatus for grading gravel &c. comprises a series of screens 3, 4, 7 linked together so that the oscillating movements of one screen are imparted to the others, and a charging device consisting of a receptacle in which works a reciprocating feeding member. In the arrangement described, the screens are used with a washing apparatus as described in Specification 371,599, comprising a tray 1 and reciprocating member 2. The upper screen is pivoted at 8 and the succeeding screens are pivoted at intermediate points 9, returning springs 17 being provided. The screen actuating means may consist of a frame 10 carried by the member 2 and running on rollers 25 which engages with the upper screen at a point below its pivot. Alternatively, the actuating means may consist of a rotary cam or a crankshaft operated push bar.
Patent GB-371599-A (GB)
Title: Improvements in or relating to apparatus for washing sand, gravel and like materials, or mixing tarred macadam and concrete
IPC: B07B1/12
Filed: 1931-04-20
Abstract: 371,599. Washing granular materials ; mixing tarred macadam or concrete. CROSS, J., (known as CROSS, H), Ditton Priors, Bridgnorth, Shropshire. April 20, 1931, No. 11636. [Classes 82 (ii) and 86.] Apparatus for washing sand, gravel, &c., or for mixing tarred macadam or concrete comprises an inclined trough into the lower end of which the material is fed, and a reciprocating frame pivotally suspended by hangers at each end and having a plurality of transverse rods on each of which are freely mounted two or more dependent blades, rakes, or sweeps, to convey the material to the higher end of the trough. In washing sand, gravel, &c. the material is fed to the lower end of an inclined trough 1 and is carried up the trough against a flow of water by a reciprocating conveyer, being finally discharged on to a riddle 42 which may be connected to and reciprocated with the conveyer. The conveyer consists of a frame 2 pivotally connected at its ends to hangers 8, 9 attached to shafts 10, 11 journalled in bearings on the main framework of the apparatus. The frame 2 is reciprocated by a crank or eccentric and is guided by channel irons at the sides of the trough. The side members of the frame are connected by a plurality of transverse rods 32 on each of which are freely mounted two or more depending blades 36, preferably of inverted T shape, which are inclined so that they ride over the material on the back stroke of the conveyer. The blades may be of curved cross section. When mixing tarred macadam or concrete the constituent materials are fed to the lower end of the trough and discharged mixed at the upper end.
Patent GB-591394-A (GB)
Title: An improved method of constructing insulated model railway track and points
IPC: B23K31/02
Filed: 1945-05-10
Abstract: 591,394. Insulated railway tracks. ROLFE, E. P. May 10, 1945, No. 11674. [Class 132 (iii)] A process for constructing insulated model railway tracks and points comprising soldering or welding the rail on to or beside hollow rivets, cup rivets or eyelets fixed into sleepers formed of insulating material. The sleepers may be made of plywood, cardboard, synthetic resin, bonded paper or fabric or moulded from synthetic resin compositions. The rivets or eyelets may have heads specially shaped to simulate railway chairs.
Patent GB-866751-A (GB)
Title: Handle locking device
Inventor: LUDGATER PHILIP GODFREY
IPC: E05B13/00
Filed: 1958-04-11
Abstract: 866,751. Catch fastenings. CRITTALL MANUFACTURING CO. Ltd. April 10, 1959 [April 11, 1958], No. 11676/58. Class 44. A locking device for casement window frames comprises leaf spring means 1 slidable in a casing 5 adapted to be mounted on a handle-plate 8 on which a handle is pivotally mounted, the arrangement being such that the leaf spring means must be compressed to be slidden to operative locking position in the path of movement of a fastening spur 18 of the handle, when, on release of such compressive force, the natural springiness of the leaf spring means brings part thereof into abutting engagement with part of the casing to prevent unauthorized or undesirable movement of the handle. The casing 5, Fig. 3 is-adapted to surround the mounting plate 8 and to be secured in position by a pivot bolt 21 for the handle 6. In this construction one limb 2 of the leaf spring means, which is V-shaped, becomes offset in the fastening position and abuts an end wall 4 of the casing to prevent withdrawal of the spring means. The spring means can only be withdrawn when a key 11 is inserted through an aperture 10 to restore the limb 2 into alignment with the remainder of the spring means when it can be withdrawn by means of a finger grip 3. In an alternative construction Fig. 8 the leaf spring means is of different shape and can be compressed to withdraw an abutment 16 from contact with the casing so that the leaf spring means can be slid from its fastening position. In both constructions the portion of the spring means which engages the spur 18 is chamfered so that movement of the spur to a night ventilating position is possible.