baber/WOPTO huggingface dataset:
Patent GB-570737-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/16
Filed: 1944-01-26
Abstract: 570,737. Safety razors. ROLLS RAZOR, Ltd., and LAW, E. H. Jan. 26, 1944, No. 1493. [Class 30] In a safety razor of the kind in which the blade 16, Fig. 2, is held in a rigid jaw 1 by a clamping device carried by the 'handle, the clamping device is in the form of a plunger mounted in a handle part which is integral with the jaw and screw threaded to a lower handle part, and the plunger bearing directly against the lower face of the blade. In one form, Fig. 2, the plunger 7 is slidable in the upper part 3 of the handle and is operable by the lower part 4 of the handle which is provided with a recess 9 to receive fixedly or removably the lower end of the plunger. The upper end 8 of the plunger is rounded, and if the plunger is removable from the recess 9, both ends may be rounded for alternative use. In another form, Fig. 3, the plunger is pressed upwards by a spring 19, the pressure of which may be released, if necessary, to facilitate the insertion of the blade, by adjustment of the lower handle part 4. A further form is similar to. Fig. 3 but the plunger extends dow-n into a recess at the bottom of the handle part 4, the recess containing the spring 19 being closed at the lower end by a screwed plug.
Patent GB-608968-A (GB)
Title: A valve device for heating and/or ventilating purposes
IPC: F16K3/08
Filed: 1946-01-16
Abstract: 608,968. Valve closure members. STURGES, R. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 16, 1946, No. 1515. [Class 135] [Also in Group X] A valve device for heating or ventilating purposes has a casing opening controlled by a number of movable interlocking blades or shutters which in the fully open position of the valve are packed one behind the other with respect to the direction of fluid flow through the opening. The cylindrical casing 1 has opening 2 across which is a diametral web 9. The opening is closed by a series of double sector-shaped blades 3, 4. The edges of the blades 4 are turned over in opposite directions as shown at 5 in Fig. 3 to form interlocking means. The bottom or master blade 3 has only one edge 6 turned over, the other edge 7 being flanged at right angles so that when this blade is turned by a knob 14 on the central spindle 11 it picks up all the other blades and moves them under the web 9. In a modification, a series of shutters with' similar interlocking means are arranged to cover two openings in the circumferential wall of a cylinder closed at one end, the shutters being accommodated between the inner wall of the cylinder and an inner concentric flanged member at each end of the cylinder. The shutters are packed one behind the other under the portions of the cylinder between the two openings, when the valve is fully open.
Patent GB-112530-A (GB)
Title: A New or Improved Implement for Facilitating the Tuning of Pianos, Organs and the like Instruments.
Inventor: CRUTCHLEY CHARLES FREDERICK
IPC: G10C3/10
Filed: 1917-02-01
Abstract: 112,530. Crutchley, C. F. Feb. 1, 1917. Computing-scales for use in tuning musical instruments. A sliding or rotary scale is graduated for the comparison of equal temperament and just intonations; directions for use may be given on the back. As shown in Fig. 3, a rectilinear sliding-rule has one stationary member a marked with equally spaced divisions representing equal temperament, and with numbers indicating the sequence for tuning, and has a second slidable member b marked with unequal divisions representing the perfect intervals. As shown in Fig. 5, a card f and pivoted disk g are similarly graduated.
Patent GB-721685-A (GB)
Title: Improvements in and relating to bakers' ovens
Inventor: BOER HENDRIK PIETER DEN
IPC: A21B1/08
Filed: 1952-01-21
Abstract: 721,685. Bakers' ovens. PELKMAN BROS., Ltd. April 21, 1953, [Jan. 21, 1952.] No. 1684/52. Class 51 (2). In an indirectly heated bakers' oven, having an endless conveyer 12, steam required initially for bread baking is supplied from transverse pipes 38 mounted on a screen 28 carried by the counterweighted door 24 at its lower edge, and formed with nozzles 40 directed downwardly and towards the oven entrance, the pipes 38 being fed from longitudinal pipes 32 connected by flexible pipes 36 to a header 34. When steaming is not required, as, for instance, in baking biscuits, the door is removed and the screen detached. The oven is heated by upper and lower banks of gas or steam pipes 18 and 16, extending respectively from headers 22 and 20, and the screen 28, when used, shields the bread from excessive initial radiation from the header 22. The screen may be made of sheet metal covered on its upper surface with asbestos cement.
Patent GB-1202536-A (GB)
Title: Pigmented polyamides
Inventor: BARKER PETER WILLIAM
IPC: C08G85/00
Filed: 1967-01-12
Abstract: 1,202,536. Pigmented polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Dec., 1967 [12 Jan., 1967], No. 1693/67. Heading C3R. Pigmented polyamides are prepared by polymerizing a mixture of 90 to 99À5 wt per cent hexamethylenediammonium adipate and 0À5 to 10 wt. per cent of caprolactam in the presence of an organic pigment. Specified pigments are quinacridone, phthalocyanine and perylene pigments, e.g. copper phthalocyanine or the bis- N,N<SP>1</SP>-(3<SP>1</SP>,5<SP>1</SP>-dimethylphenyl) imide of perylene- 3,4,9,10-tetracarboxylic acid. Inorganic pigments, e.g. TiO 2 , carbon black, cadmium sulphide or selenide, or iron oxide, may also be present and a viscosity stabilizer, e.g. acetic acid, may be employed.
Patent GB-721197-A (GB)
Title: Improvements in or relating to radar systems
Inventor: RUST NOEL MEYER
IPC: G01S13/86
Filed: 1951-01-23
Abstract: 721,197. Radio navigation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 10, 1952 [Jan. 23, 1951], No. 1763/51. Class 40 (7). In a radar system, a target position is given by the intersection of position lines, e.g. hyperbola and ellipse, drawn on a previously prepared chart, the appropriate position lines. of a given type being indicated by the deflection of a C.R. tube. As shown, the C.R. tubes 4, 9 at the receiver B are respectively provided with scale markings which correspond with elliptical and hyperbolic position lines, and in C.R. tube 4, the vertical deflection plates are supplied with the reflected signal from the target C through a channel having a circuit 6 with a delay equal to the time To of direct transmission from the transmitter A to receiver B. The horizontal plates are supplied with the direct transmitter and receiver signal. The C.R. tube deflection, which is proportional to the total time of travel of the reflected signal, i.e. T1+T2, indicates the particular ellipse, previously prepared on the chart, on which the target position must lie. The C.R. tube 9 is associated with a second receiver D and the deflection indicates the particular hyperbola, having focii B, D, on which the target position lies. In a second embodiment, not shown, the second receiver D, is located at A and a third set of circular position lines, with centre A, are employed. In a third embodiment, not shown, two circular position lines are employed and it is stated that pulse F.M., or C.W. systems may be used; in the C.W. case an existing broadcast transmitter can be used. The targets adapted for the system may be either passive or co-operating.
Patent GB-538478-A (GB)
Title: Process for the manufacture of derivatives of cyclopentano-phenanthrene
IPC: C07J75/00
Filed: 1940-01-30
Abstract: 538,478. Cyclopentanophenanthrene - oxymethylene ketones. HOFFMANN-LA ROCHE & CO., AKT.-GES., F. Jan. 30, 1940, No. 1837. Convention date, Feb. 9, 1939. [Class 2 (iii)] 16-Oxymethylene-17-mono-ketones of the cyclopentanopolyhydrophenanthrene series are produced by reaction of 17-mono-ketones of this series which have a methylene group in position 16 with formic acid esters in the presence of alkaline condensing agents. Ketones mentioned as starting materials include androsterone, androstandione, testosterone, progesterone, oestrone, equiline, equilenine, corticosterone and cholestenone. Esters of formic acid mentioned include the methyl-, ethyl-, and amyl-esters. Condensing agents include alkali-alcoholats, and metallic sodium or sodium amide. In an example an ether solution of oestrone and amyl formate is added to sodium powder prepared under toluene. After the reaction is over, water is added and the 16- oxymethylene-oestrone worked up.
Patent GB-675554-A (GB)
Title: Improvements in tipping hoppers
IPC: B60P1/12
Filed: 1949-01-24
Abstract: 675,554. Wheeled tipping hoppers. CLARKE, C. V. Jan. 24, 1950. [Jan. 24, 1949] No. 1936/49. Class 78 (iv). [Also in Group XXXII] A hopper is mounted to swing between spaced frame members and independent transport wheels supporting the frame members from receiving position to discharge position, and is provided with a wall which is part of a retaining wall in the receiving position and in the discharge position forms a slide inclining upwardly from a discharge edge near the ground, the hopper and its pivot being so disposed that it can be swung from receiving to discharge position without movement of the frame. In the embodiment shown, side frame members 1 are mounted on wheels 2 by means of swinging links 3 and quarter elliptic springs 5. Supports 8 carried by the frame members 1 have bearings 9 about which a hopper 10 pivots from the receiving position shown in full lines to the discharge position shown in broken lines. A flexible rope 16 connected to the body at 17 and to a winch 15 serves to tip the hopper 10, the centre of gravity of which is so disposed that it tends to return to the receiving position. The top of the hopper may be open, or closed with a pivoted lid 22 operable by a pedal 26. A draw bar 18 is attached to the frame and carries a coupling of the form shown in Specification 675,555, [Group XXXII].
Patent GB-566658-A (GB)
Title: A new drawing instrument
IPC: B43L11/00
Filed: 1943-02-08
Abstract: 566,658. Drawing ellipses &c. JONES, W. H. Feb. 8, 1943, No. 2021. [Class 97 (iii)] In a device for drawing arches, curves or ellipses, the transverse arm 29 carrying the scribing point 37 is adjustably clamped in a sleeve 23 freely rotatable and slidable on the main bar 20. A spike 22 fixes one end of the main bar where required, the other end being adjustable for transverse location on the cross-bar 13 through the clip 16 and adjustable for height by the lugs 14 slidable on the upright 10 of the stands 11, 12. The sleeve 23, Fig. 2, is provided with anti-friction bearings 24 which can be tightened by nuts 26, 27.
Patent GB-954531-A (GB)
Title: Improvements in or relating to the manufacture of graphitised carbon articles
IPC: H01R43/12
Filed: 1962-01-19
Abstract: Graphite is prepared from petroleum coke or carbon black by introducing from 0.5-5% by weight of TiO2 into the carbon and then graphitizing.  The TiO2 may be added in the form of a compound which is thermally decomposed to TiO2.  In an example a carbon plate baked at 1200 DEG  C. was impregnated by immersion under vacuum in a solution of a titanium complex prepared from a mixture of conc. HCl, tartaric acid and TiCl4 in water. The carbon was dried and then baked at 900 DEG  C. with a temperature rise of about 75 DEG  C. per hour, then graphitized at 2400 DEG  C. The graphite produced was used for brushes for electrical machines.
Patent GB-1253642-A (GB)
Title: Improvements in or relating to systems for distributing television programmes by cable
Inventor: BURKE ALAN SAMUEL
IPC: H04N9/455
Filed: 1968-10-18
Abstract: 1,253,642. Television distribution systems. BRITISH RELAY Ltd. 15 Jan., 1970 [18 Oct., 1968], No. 2062/70. Heading H4R. In a multiprogramme television distribution system for both colour and monochrome programmes a non-phase switched burst of signal is transmitted in place of the normal phase switched PAL colour burst on the back porch of the synchronizing pulse during transmission of monochrome signals. The arrangement enables conventional television receivers, which have automatic chrominance gain control circuits, to be used for the reception of the wired distribution signals, without cross talk from the chrominance bursts of colour signals on other conductors of the distribution system causing interference and colour contamination on a receiver connected to a monochrome signal, due to the absence of colour burst signals increasing the chrominance gain. As described a chrominance burst detector, in the absence of chrominance bursts in a monochrome signal, gates through bursts from a crystal oscillator 28. The crystal oscillator 28 also supplies carrier for the transmission of the video signal from the receiver 21. The carrier is synchronized on colour transmissions by the chrominance bursts which are compared with the output of oscillator 28 in comparator 30 whose output controls the crystal oscillator 28.
Patent GB-822551-A (GB)
Title: Improvements in or relating to field kitchens
Inventor: PALMER HENRY ALFRED
IPC: F24C5/20
Filed: 1956-01-20
Abstract: 822,551. Field cooking apparatus. FLAVELL & CO. Ltd., S. Jan. 21, 1957 [Jan. 20, 1956], No. 2066/56. Class 28 (1). [Also in Group XI] A field kitchen has a base frame 1 to which is secured a hollow hob 2 formed as a sheet metal shell with outwardly-turned upper edges to support a removable grate 29 formed of grids 30 on each side of a flame deflector 31 immediately above a burner of the form described in Specification 792,318, [Group XI]. An upstanding housing 3 is secured to the base frame 1 to house a fuel reservoir 17 with a filling orifice 19 closed by a cap 20 and a water reservoir 18 with a filling pipe 24 and a cap 25 including a non- return valve, access to which is through a door 15. The burner comprises a casing 34 with a tube 35 leading to a steam injector nozzle 38 within the housing 3 which is connected by a conduit 40 to one end of a flash boiler 41, the other end of which is connected to the conduit 26 from the water reservoir outlet 27.
Patent GB-952416-A (GB)
Title: Improvements in or relating to magnetrons
Inventor: TWISLETON JOHN ROBERT GEOFFREY
IPC: H01J23/48
Filed: 1962-01-19
Abstract: 952,416. Magnetrons. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 1, 1963 [Jan. 19, 1962], No. 2072/62. Addition to 924,277. Heading H1D. The magnetron of the parent Specification is modified in having the conductor 11 leading from the anode vane 2 connected to a probe 10 within the magnetron envelope for coupling to a waveguide. The lumped capacitance required is provided between the part 10F attached to the probe and the ridges 7A formed in the polepiece 7, or in another embodiment, by a ring of dielectric material inserted between the probe and the shield 17 protecting the glass-to-metal seal between metal. sleeve 25 and glass dome 23. In a modification of this arrangement the inner surface of the shield 17 is ribbed.
Patent GB-555277-A (GB)
Title: Improvements in or relating to the production of toothed wheels of small dimensions
IPC: B21K1/30
Filed: 1942-02-17
Abstract: 555,277. Cutting toothed wheels. CURRIE, J., and EGGLETON, F. Feb. 17, 1942, No. 2094. [Class 83 (iii)] Small toothed wheels such as those used in mechanical lighters are made by placing a pile of blank discs a in a holder b and forcing them by a ram c through an internally toothed die f mounted in a holder e which has an opening h through which the work pieces are discharged. The disc holder is mounted in a guide d having a rim portion which locates the die holder. In a modification, for making helically toothed wheels, the ram c, Fig. 2, is stationary and the die-holder, rotatably mounted on an upwardly moving ram p, is pinned to the guide d which has extending arms h carrying rollers m engaging stationary inclined guides n so that the die is rotated during its upward movement to form helical teeth in the blanks.
Patent GB-201132-A (GB)
Title: Improvements in and relating to casters
IPC: A47G19/24
Filed: 1923-01-23
Abstract: 201,132. John, R.. July 19, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Powder distributors.-A sugar, salt or like caster or container having a perforated cap 2 is provided with a cover 3 adapted to fall away as shown in Fig. 2 when the article is inverted, the cover being fitted with a pin 4 passing through one of the perforations and secured by a weighted ball 5 or the like. Both the cover 3 and the perforated part of the cap 2 may be convex, Fig. 2, or concave, or the cover may be convex and the perforated part concave, Fig. 4. In the latter case a seating 7 is provided for the rim of the cover.
Patent GB-742401-A (GB)
Title: Microwave transmission apparatus
Inventor: CULSHAW WILLIAM
IPC: H01Q15/02
Filed: 1953-01-26
Abstract: 742,401. Radio wave polarizing systems; duplex radio signalling. MINISTER OF SUPPLY. Jan. 25, 1954 [Jan. 26, 1953], No. 2161/53. Classes 40 (5) and 40 (7). Apparatus for producing a phase change or a change in the mode of polarization of electromagnetic radiation in the microwave frequency range comprises a prism 22, Fig. 6, of dielectric material, e.g. methyl methacrylate, having an internal surface at which the radiation is totally reflected and conductive surface 23 positioned parallel to and spaced from the totally reflecting face. The Specification contains a mathematical discussion of the effect of the conductive surface on the emergent radiation and it is shown that, the plane of polarization of the incident wave being suitably orientated with respect to the plane of incidence, the emergent wave can be arranged to be circularly polarized or to have a predetermined ellipticity. Alternatively, if the incident wave is polarized in the plane of incidence or normal to this plane a phase-shift can be applied to the wave. The distance of the plate from the prism is of the order of one wavelength of the incident radiation and is adjusted to alter the ellipticity of the emergent wave. The invention is shown as applied to a common R and T radar system (Fig. 5) in which the output wave-guide 1 of the transmitter is connected by a horn 2 and lens 3 to a shielding-tube 4 of large section along which waves are propagated in a free space mode. A stack of dielectric plates 6 is positioned at such an angle (the so-called Brewster angle) to the axis of the tube 4 that, assuming that the waves propagated in the tube 4 are polarized normally to the plane of incidence, the plates 6 reflect these waves along a further tube 5. Thereafter the waves pass through a pair of dielectric prisms 7, 8 having conductive plates 10, 11 positioned adjacent to their reflecting surfaces. The plates are movable towards and away from the prisms and are adjusted so that the waves radiated from the horn 9 are circularly polarized. Reflections from a target are circularly polarized in the opposite sense to the transmitted waves so that after passage through the prisms 7, 8 plane polarized waves are propagated along the tube 5. These waves are polarized orthogonally to the transmitter waves and therefore in the plane of incidence upon the plates 6 through which they are able to pass to a receiver wave-guide 14. The plates 6 may be replaced by a grid of suitably-spaced wires. In the apparatus of Fig. 6 the distance between the conductive plate 23 and the prism 22 is so adjusted that a planepolarized wave from the horn 21 is changed on reflection to a circularly-polarized wave. A further prism 24 is arranged to convert the waves back into plane-polarized form for reception by a horn 26. By virtue of the circularlypolarized coupling wave between the prisms 22, 24 the system 24, 25, 26, 27 can be rotated about the axis of the coupling without disturbing the feed to horn 26.
Patent GB-269680-A (GB)
Title: Improvements in apparatus for sherardising metal articles and for use in connection therewith
IPC: C23C10/34
Filed: 1926-01-25
Abstract: 269,680. Rustproof Processes, Ltd., and Trouton, M. Jan. 25, 1626. Sieves and screens, supporting or mounting.- An apparatus for sherardizing metal articles consists of a container in which the articles are heated in contact with finely-divided metal, or metal dust, provided with a detachable cover, and with a perforated plate or sieve, adapted to be substituted for the cover for the purpose of separating the metal dust &c. from the articles. Fig. 1 shows a drum-shaped container with side trunnions 2 and a base trunnion 3. This is run into an oven on a truck, and after treatment, run out and cooled. It is then hoisted by tackle attached to the trunnions 2, and deposited on the ground with the trunnion 3 lowermost. The cover, not shown, is removed, and replaced by a perforated cover 8, which is secured by hook-like pivoted clips engaging the flange 4. A canvas or like shoot is then secured over the drum, which is rocked or tipped, so that the zinc dust passes through the perforations. The container is then inverted on the ground, the clips knocked off, and the container is hoisted away, leaving the sherardized articles behind on the cover 8. The canvas shoot may be replaced by a metal shoot 14 with an enlarged part 15 fitting over the cover, a shutter 17, and a conical baffle 18. It is mounted on trunnions 19. A pyrometer or like device may be inserted through passage 7 in the trunnion 3.
Patent GB-1138551-A (GB)
Title: Electrophotographic material
IPC: G03G5/07
Filed: 1966-01-17
Abstract: 1,138,551. Phenolic-resin composition. RANK XEROX Ltd. 17 Jan., 1966 [18 Jan., 1965], No. 2196/66. Heading C3R. [Also in Division H1]  The invention comprises a charge-transfer complex of a phenol-aldehyde resin and a Lewis acid. Preferably the resin has the formula where R is a residue selected from formaldehyde, paraformaldehyde, furfural, amino formaldehyde, acrolein, benzaldehyde, chloral, oxoaldehydes, acetaldehyde, glyoxal, propionaldehyde, n-butyraldehyde, isobutyraldehyde, nvaleraldehyde, isovaleraldehyde, n-coproaldehyde, n-heptaldehyde, stearaldehyde and crotonaldehyde or mixtures thereof; Y is H, OH, halogen or lower alkyl X is O or R Z is an integer of at least 2 n is an integer up to 4 and m is an integer up to 3. In the examples the resins used are a dimethyl diphenyl oxide-phenol resin modified with diphenyl oxide, rosin modified phenolformaldehyde, phenol-formaldehyde and pphenyl phenol-formaldehyde whilst the Lewis acids used are 2,4,7-trinitrofluorenone, benzophenone tetracarboxylic acid, benzanthracene- 7,12-dione, aurintricarboxylic acid, 1,3,5-trinitrobenzene, 2,3-dichloro-1 ,4-naphthaquinone. Ethyl methacrylate resin may be used as a binder together with sensitizers such as pyronin B, methylene green, brilliant green and eosine Y. Numerous other Lewis acids of the organic and the inorganic types are specified. Also listed are phenols which may be used to form the phenol-aldehyde resin. The photoconductive material may be coated on Al foil to form an electrophotographic plate or may be used as a self-supporting transparent sheet.
Patent GB-120679-A (GB)
Title: Improved Means for Controlling the Supply of Combustible Mixture.
Inventor: KEITH JAMES
IPC: F02M21/00
Filed: 1918-02-07
Abstract: 120,679. Keith, J., Keith, G., and Whatmough, W. A. Feb. 7, 1918. Fluid-actuated valves.-For automatically controlling the proportion of air and gas in a combustible mixture for use for instance in internalcombustion engines, a current of air passing through a pipe 1 acts through tubes 6, 7 upon .two diaphragms 3, 4 of different areas, to which is connected a valve 9 for controlling the passage of gas under pressure. The gas pipe 10 contains a valve 11. The pipes 6, 7 and 9 may be arranged in several ways with regard to the diaphragms, but the mouth of the tube 6 always faces the air current. A throttle valve 2 in the air pipe may be situated on either side of the governor.