baber/WOPTO huggingface dataset:
Patent GB-1430546-A (GB)
Title: Conveyor particularly for passengers
IPC: B66B21/12
Filed: 1974-06-21
Abstract: 1430546 Variable-speed passenger conveyers SAIAG SpA INDUSTRIA ARTICOLI GOMMA 21 June 1974 [22 June 1973 27 Sept 1973] 27762/74 Heading B8A Each tread surface 15 of a passenger conveyer comprises, in addition to a comparatively rigid portion 16a, a flexible portion 16 which is fixed at its outer end to, and is curved around, the periphery of a sector-shaped member 17. A pivot 20 rigid with the central axis of the member 17 carries a roller 21 which runs in an endless guide 22 (shown diagrammatically as a dot-dash line in Fig. 1) corresponding to the travel of the conveyer. A cam follower 76 on arm 25 rigid with the member 17, is guided by a cam track 27 the contour of which is arranged to vary the inclination, and thus the degree to which the flexible portion 16 is wound up on the member 17. For movement of the conveyer in an anticlockwise direction, as viewed in Fig. 1, therefore, zone 27c of the track 27 corresponds to an acceleration section, zone 27a to a high speed section, and zone 27b to a deceleration section. A further guide track 24, parallel with the track 22, may be provided for rollers carried by the portions 16a. Each of the latter portions is integral with a respective member 18, the other end of which is journalled on the axis of the member 17. A handrail having a similar construction is also described, certain of the members (36) (Fig. 4, not shown) of the handrail corresponding to the member 16 of the conveyer, carry grab handles (40). The members 16 may be additionally linked by a chain formed of links 30 (Fig. 5). In a modification (Fig. 9) tread surfases 211 of bellows-like formation are disposed between upstanding members 216 integral with each portion 16.
Patent GB-209211-A (GB)
Title: Improvements in gas producers and the like
IPC: C10J3/34
Filed: 1922-10-13
Abstract: 209,211. Bentley, G. H., and Appleby, E. G. Oct. 13, 1922. Grates; ash-pits.-A gas producer is provided with a rotating air-supply tube 12 extending into the shell 10 and having perforated arms 13. The arms 13 extend to the top of the ash bed, and to the ends thereof is secured a hollow ring 14 also provided with holes 141, 142 in its inner and bottom walls respectively for the exit of air and steam. The holes are protected by lugs 133 on the upper surfaces of the arms 13, while below the shell is fixed a, skirt 15 which extends into an ash-pan 16 fixed to and rotating with the tube 12 and supported by rollers 17, the ashes being removed from the pan by a scrapper 18. The tube 12 is rotated by a toothed ring 121 fixed on the ash-pan or on the tube 12 itseif. In a modification the ring 14 is of oval section and is provided with holes in its inner wall, while the ashpan is surrounded by a casing secured to the end of the shell. The producer may also be provided with a water-jacketed shell and/or a waterjacketed poker the water therefrom being led to spraying apparatus in the air tube.
Patent GB-1153463-A (GB)
Title: Improvements in and relating to the Manufacture of Insulated Gate Field Effect Transistor
Inventor: KLEIN THOMAS
IPC: H01L21/74
Filed: 1965-06-22
Abstract: 1,153,463. Semi-conductor pevices. MULLARD Ltd. 22 June, 1966 [22 June, 1965], No. 27845/66. Heading H1K. As shown, Fig. 1, two field effect transistors of opposite types are produced in a single wafer by etching a cavity in a P-type silicon wafer 1 and diffusing phosphorus into the walls of the cavity to produce an N+ region 4. N-type silicon region 2 doped with phosphorus is epitaxially deposited in the cavity and the excess material removed by polishing until the surface is flat and the boundary of the junction is visible when treated with a suitable etchant. The wafer is masked with an oxide layer and boron is diffused-in to form P-type source and drain regions 5. Phosphorus is then diffused-in to form N-type source and drain regions 6. The oxide mask is removed and replaced by a fresh oxide layer 7 in which windows are etched over the electrode sites. The oxide layer is removed from the lower face of the wafer and gold is evaporated-on and diffused-in. The excess gold is removed from the surface which is then relapped and a mixture of P 2 O 5  and B 2 O 3  in glycerine is applied and the wafer is heated. This process is said to ensure that in each of the transistors no current flows at zero gate-source voltage. A layer of aluminium is vapour deposited on oxide layer 7 and masked and etched with phosphoric acid to produce the desired electrodes and interconnections. Electrodes 10, 12 and 13 are applied to the source and drain regions of the transistors, and insulated gate electrodes 8, 9 are provided between these. Contacts 14 and 15 are applied to regions 2 and 1 respectively. The gate electrodes 8, 9 are connected to a common strip (11), Fig. 2 (not shown), which may cross a small P+ type region 16 to reduce parasitic effects as described in Specification 1,153,462. A plurality of such devices may be simultaneously produced in a single slice which is then cut up. The transistors may be connected in alternative circuits and may be associated with diodes, resistors and capacitors formed in wafer 1 and/or on oxide layer 7. A plurality of field effect transistors may be provided in separate filled cavities in the same wafer. In an alternative construction, Fig. 4 (not shown), two cavities are etched in a P-type body one being deeper than the other, and a layer of N-type material is epitaxially deposited, filling the shallower cavity and partially filling the deeper cavity. A layer of P-type silicon is epitaxially deposited to fill the deeper cavity and the excess material is removed to produce a P-type wafer with an N-type region at the site of the first (shallower) cavity and a P-type region surrounded by an N-type region at the site of the second cavity. Field effect transistors are produced in the two inserts as previously described. If required, the surface of oxide layer 7 may be converted into a phosphorus-containing glass. The method of forming a cavity and filling it with epitaxially deposited material is descrided in Specification 1,072,703.
Patent GB-323266-A (GB)
Title: Motion picture apparatus
IPC: G03B15/08
Filed: 1928-09-28
Abstract: 323,266. Wright, W. L. Sept. 28, 1928. Kinematograph apparatus. - Gates through which a film passes in sequence are so arranged in relation to a film feeding member that the film is engaged by the member at each of the exposure apertures; the apparatus may be used in a camera, projector, printer, &c., for colourrecord or other images, and may be associated with a light-dividing optical system. As shown, gates 15 - - 17 are arranged in a camera round an intermittent sprocket 20 and the film is threaded so that four sprocket holes are free from the sprocket, and three teeth are free from the film, between each pair of gates, thus forming film loops. Light entering the camera through an opening 31 is divided by plates 33, 35, and reflected through lenses 40, and normally to the gates, by mirrors 34, 36, 37 to form three identical images. The light dividing plates 33, 35 may respectively serve as yellow and green colour filters, and violet and orange filters 60, 61, respectively, may also be provided. A single shutter 13 may control all the image beams. The gates may adjoin one another, or may be arranged at right angles to one another; they may be formed as one unit or may be separately mounted on the frame.
Patent GB-163061-A (GB)
Title: Improvements in and relating to variable speed gear
IPC: F16H29/18
Filed: 1919-11-11
Abstract: 163,061. Last, J. Nov. 11, 1919. Variable-speed gearing.-One or more epicyclic trains are combined with variable-speed ratchet gearing of the kind shown in Figs. 1 and 2. This comprises coaxially arranged driving and driven disc members a, b with a rotary member c between them adapted to be adjusted to various eccentric positions. Blocks d sliding in radial slots a<1>, b<1> in the discs are secured to ratchet grips e in annular grooves c<1> in the member c. As the member c is moved from its concentric position, as by a strap f, the speed of the driven disc rises from equality with that of the driving- disc. The combination of Fig. 3, which is suit. able for motor-vehicles, yields ratios varying from zero forwards and backwards. The carrier 34 of planet gears 33 is secured to a driven shaft 35. The side gear 18 is loose on the driving-shaft 1 and is adapted to be driven therefrom through two ratchet gears A, B on series. The other side gear 21 is adapted to be driven reversely through chain gearing 6, 8, a countershaft 9, toothed gearing 10, 11 and a ratchet gear C. When the gears 18, 21 are driven equally, the shaft 35 is at rest. When the gear C is cut out by a clutch sleeve 22, the shaft 35 is driven forwards with a speed depending on the eccentricity of the middle members of the gears A, B. Reversed driving is obtained by cutting out the gears A, B by a clutch sleeve 2 and operating the gear C. A solid drive may be obtained by clutching the shafts 1, 35 together. A modification suitable for motor-cycles com. prises two epicyclic trains and one ratchet gear. A modification suitable for cranes comprises one ratchet gear controlling one epicyclic train. A modified pawl or grip for use in the ratchet gear is shown in Fig. 5. This grips the sides of the annular grooves c' by shoes r<1>, r<2> having gripping surfaces r' eccentric to the gudgeon s to which power is applied.
Patent GB-1277271-A (GB)
Title: Moulding materials of calcium silicate hydrate and shaped products thereof
IPC: C04B28/18
Filed: 1969-06-03
Abstract: 1277271 Calcium silicate moulding material OSAKA PACKING SEIZOSHO KK 3 June 1969 [4 June 1968 8 June 1968 1 Nov 1968 4 Nov 1968] 28016/69 Heading C1A [Also in Division C3] A moulding material of crystallized calcium silicate hydrate comprises a slurry of calcium silicate crystals in the form of tobermorite or a mixture of tobermorite and xondlite having a weight ratio of solid to water of between 1 : 10 and 1 : 25, at least 40% by weight of the calcium silicate crystals having formed globular agglomerates of 10 to 150 microns diameter by being three-dimensionally interlocked with one another. The moulding material may contain a reinforcing material such as asbestos fibres, or a clay or cement and may be prepared by the method of Specification 1,193,172. A shaped product may be made by pressing the moulding material so that the calcium silicate crystals are distorted at least in the direction along which pressure has been applied to the moulding material.
Patent GB-606136-A (GB)
Title: Improvements in or relating to shunting locomotives
IPC: B61C9/10
Filed: 1945-10-24
Abstract: 606,136. Mounting gear-boxes. ELLIS, E. D. Oct. 24, 1945, No. 28031. [Class 79 (iii)] In a shunting locomotive powered by an internal combustion engine, the final drive mechanism is mounted on the driving axle and its other end is supported from the end frame of the locomotive by a universal or pivotal mounting which permits its movement about longitudinal and transverse axes. As shown, the engine 1 is mounted within the frame 2 of the locomotive and is coupled to the gear-box 3 through a shaft 4 and flexible couplings 5, 6. The coupling 5 is telescopic. The gear-box, which houses the final drive is directly mounted on the axle 8. The forward end of the gear-box is provided with a ball member 9 which is housed in a split spherical housing 11 and which has a tubular extension 12 slidably mounted on a member 13 bolted to the locomotive frame 2. A clearance space 14 exists between the end of the extension 12 and the flange of the member 13 to allow for endwise movement of the wheel axle. An alternative form of coupling, Fig. 3, comprises a bracket member 17 attached to the gear-box, which is pivoted to a fork 18 by a pin 19. The fork has an arm 20 which is slidably mounted within a bush 21.
Patent GB-226183-A (GB)
Title: Improvements in or relating to wind and weather screens of vehicles
IPC: B60J10/02
Filed: 1924-11-24
Abstract: 226,183. Cloche, R. Dec. 11, 1923, [Convention date]. Windscreens.-An antirattling and rain-excluding device for attachment to the upper edge of the lower pane 7 of a divided vehicle wind-screen consists of an elastic strip or band 1 of U- section reinforced at its base 2 and having the limbs 3, 5 arranged in close proximity so as to grip the pane by their resiliency, t'he lower edge 6 of the limb 5 against which the upper pane abuts being made tubuler.
Patent GB-1167191-A (GB)
Title: Improvements in Electro-Magnetic Relays.
Inventor: SMITH RAYMOND HAROLD BEVAN
IPC: H01H50/54
Filed: 1966-06-23
Abstract: 1,167,191. Electromagnetic relays. ENGLISH ELECTRIC CO. Ltd. 20 June, 1967 [23 June, 1966], No. 28064/66. Heading H1N. An electromagnetic relay has rectilinearly movable contact bridges 12 on resilient arms 11  between rigid stop arms 13. The mounting block 6 is mounted on and moved by axial movement of a member 7 to move the contact bridges 12 between respective pairs of fixed contacts 5 in a hollow block (4) (Figs. 1 and 2, not shown). The member 7 is suspended between two tension springs (8) and moved by an extension of an electromagnet armature. The springs 8 may be adjusted to set the operating current and the contacts may be connected for use as normally open, normally closed or change-over sets.
Patent GB-412972-A (GB)
Title: Improvements in or relating to the construction of rubber and spring seats
IPC: A47C23/02
Filed: 1932-10-08
Abstract: 412,972. Spring - upholstered seats. DAVIES, B. S., Wyndcote, Horsell Rise, and WRIGLEY, B., St. Margaret's, Kingfield, both in Woking, Surrey. Oct. 8, 1932, No. 28087. [Class 52 (iv).] A sponge rubber or other padding k is supported in a concave cradle t, Fig. 5, suspended from a number of parallel blade springs b or formed integral therewith by shaping the upper part g, Fig. 1, of the springs, which are secured at their ends to a common base a. The blades may be reinforced by tension springs p, Fig. 3. Specification 408,639 is referred to.
Patent GB-445406-A (GB)
Title: Improvements relating to hinges
IPC: E05D3/06
Filed: 1935-10-11
Abstract: 445,406. Hinges. LEFEVRE, E. B. G., 14618, Ashton Boulevard, Detroit, Michigan, U.S.A. Oct. 11, 1935, No. 28089. [Class 65 (ii)] A concealed hinge, particularly for vehicle doors, comprises members 10, 11, fixed to the door and frame respectively and connected by a link 12 pivoted to them, and a controlling link 13 pivoted at its centre to the middle part of the link 12 and carrying at its ends pins which engage in guide slots or grooves 23, 26, in the members 10, 11 respectively to move the door away from the post after slight initial rotation before allowing the main swinging movement. In the form shown, the link 13 is pivoted on top of link 12, a slot 23 is formed in a flange at the top of member 10, and a groove 26 is formed in a thickened part in the top of member 11. In a modification, the link 13 is made deeper and is pivoted in an aperture in link 12 and has long pins at the ends to engage slot 23 in a flange at the top of member 10 and a slot 26 in a flange at the bottom of member 11, the flanges of members 10, 11 also serving as hinge lugs for the link 13, in conjunction with corresponding flat lugs at the opposite edges of these members.
Patent GB-926861-A (GB)
Title: ª -amino-ª -hydroxy carboxylic acid amides and process for preparing them
IPC: C07C237/00
Filed: 1959-08-17
Abstract: The invention comprises alpha-amino-beta-hydroxy-butyric acid amides substituted on the amido nitrogen atom by an aliphatic hydrocarbon radical R which is attached to the nitrogen atom by a tertiary carbon atom, and acid-addition salts thereof; and the preparation thereof by treating a compound of the formula CH3COCH2CONHR (prepared from diketene and the amines NH2R) with nitrous acid or reacting it with an aryl diazonium salt, and reducing the product.  The products of the reaction with nitrous acid are a -isonitroso derivatives of the keto-amides of the above formula, and they may be reduced in stages, first by reduction with for example, nascent-hydrogen to a compound of the formula CH3COCH(NH2)CONHR and then to the required product with, for example, sodium or aluminium amalgam and an alcohol and sodium borohydride or by catalytic hydrogenation or electrolytically. Before this final reduction, the intermediate amine is desirably acylated to give a compound of the formula CH3COCH(NHAc) CONHR (wherein Ac is an acylating group such as an acetyl, propionyl, benzoyl or phenylacetyl group) which on reduction gives a compound of the formula CH3CH(OH) CH(NHAc)CONHR from which the required final product is obtained by hydrolysis.  The products of the reaction with an aryl diazonium salt are a -arylazo derivatives of the keto-amide starting materials, which may then be reduced in stages by the same methods as are employed for the isonitroso compounds.  Alternatively the reduction process of the invention may be effected in one stage, by catalytic hydrogenation, or electrolytically, or with nascent hydrogen or sodium borohydride. Detailed examples are given, one product being isolated in two isomeric forms.  The amides of the invention, which have analgesic properties, may be incorporated in pharmaceutical compositions with the aid of suitable carriers. Specifications 816,225 and 828,694 are referred to.
Patent GB-1408812-A (GB)
Title: Hydrodesulphurization of crude oil
IPC: C10G45/08
Filed: 1973-06-14
Abstract: 1408812 Hydrodesulphurization catalysts GULF RESEARCH & DEVELOPMENT CO 14 June 1973 [14 June 1972] 28391/73 Heading C5E A catalyst for the hydrodesulphurization of crude, reduced crude or heavy gas oil consists of at least one Group VI metal (i.e. Cr, Mo and/or W) and at least one Group VIII metal (i.e. Fe, Co and/or Ni) supported on alumina and has a pore volume of at least 0À40 c.c./gram with at least 65% of the pore volume included within the pore size range of (a) 40-90  or (b) 60- 150  as determined by isothermal nitrogen desorption measurement at liquid nitrogen temperatures; the desorption graph showing that the change of volume of nitrogen in the catalyst per unit change in pore radius versus increasing pore radii within the above specified pore size range exhibits at least one peak from which the curve descends and then reascends for a magnitude (in both descent and reascent) of at least 0À001 ml. per gram per Angstrom unit to form at least one other peak within that range; the nitrogen desorption graph showing a different pore size distribution as compared to the nitrogen adsorption graph for the same isotherm measurement.
Patent GB-466017-A (GB)
Title: A calculating device
IPC: G06G1/00
Filed: 1935-10-15
Abstract: 466,017. Calculating - apparatus. McGEORGE, E. G. Oct. 15, 1935, No. 28480. [Class 106 (i)] Local-time calculators.-A device for ascertaining local standard time, the day of the week or year at different places, and the local sidereal time comprises four concentric circular dials the two intermediate dials being independently rotatable. The outermost dial A has a scale representing hours and five minute intervals. The outer rotatable scale B is used to indicate the standard time zones and is divided into hours and minutes each way from an arrow marked G.M.T. The inner edge of the dial is graduated to represent the months and days of the year. The inner rotatable dial C is formed with a date arrow co-operating with the year scale and with a scale inscribed with longitude marks, but arranged to give the correction between mean and sidereal time. The innermost stationary dial D is divided into twentyfour equal divisions representing sidereal time.
Patent GB-1001380-A (GB)
Title: Image-receiving material for the production of photographic images by the silver salt diffusion process
IPC: C08F8/00
Filed: 1963-07-19
Abstract: An alkyl vinyl ether/maleic anhydride copolymer is reacted with an aliphatic alcohol with 1 to 4 carbon atoms and a monoalkanolamine, preferably with 2 to 4 carbon atoms to transform at least partially the anhydride groups into semi-ester and semi-amide groups.  As an example, n-butyl vinyl ether/maleic anhydride copolymer is refluxed with monoethanolamine and methanol.  Specifications 687,751, 797,459, 822,061, 856,792, 891,221 and 974,317 are referred to.
Patent GB-262086-A (GB)
Title: An improved process for the recovery of dehydrogenation products
IPC: C07C45/78
Filed: 1926-11-15
Abstract: 262,086. I. G. Farbenindustrie Akt.- Ges. Nov. 27, 1925, [Convention date]. Hydrogen.-In the catalytic dehydrogenation of higher aliphatic alcohols, the bulk of the resulting aldehydes or ketones is first condensed from the gaseous product, and then the latter is washed with the alcohol to be dehydrogenated in order to free the hydrogen from the remainder of the products. An example is given, according to which isobutyl alcohol is dehydrogenated by passage over heated zinc oxide, and after separation of most of the resulting isobutyl aldehyde by cooling, the residue is separated from the hydrogen by washing in a column with a counterflow of the isobutyl alcohol.
Patent GB-817574-A (GB)
Title: Pneumatic tools
IPC: E21C37/04
Filed: 1955-10-10
Abstract: 817,574. Percussive tools. HARDY, E. Oct. 9, 1956 [Oct. 10, 1955], No. 28835/55. Class 124. A pneumatic tool has an attachment comprising a thrust wedge adapted to be driven by the tool at least two other wedges with means for attachment to the tool the thrust wedge being driven by the tool between the other two wedges. As shown, a thrust wedge 7 has a shank 8 formed to fit the tool holder of a percussive tool, and the thin edge enters between a second pair of wedges 11 each of which is connected by a bolt 19, 20 to a rectangular plate 15 with the interposition of a knife edge 22 and a spring 21. A second rectangular plate 14 is bolted to the tool and has an arm 16 pivotally connected to it at each corner the free ends of the arms being pivotally connected to the free ends of similar arms pivoted to the plate 15. A coil spring 18 biases the arms 16 into the extended position. In a modification, Fig. 3 (not shown), the spring 18 is replaced by a pair of cylinder and piston devices.