baber/WOPTO huggingface dataset:
Patent GB-724458-A (GB)
Title: Improvements in combined stencil-moistening and stencil-blotting apparatus
IPC: B41M1/12
Filed: 1953-03-23
Abstract: Apparatus for moistening and blotting stencils preparatory to forming the printing characters thereon comprises a casing member 10, a cover 14 pivoted at 22 along one side of member 10, guide tracks 24, 26 secured between arms 16, a <PICT:0724458/III/1> <PICT:0724458/III/2> <PICT:0724458/III/3> holder 34 for a stack of stencils S arranged so that the lowermost stencil rests on the tracks 24, 26 and in contact with a moistening wick 42, Fig. 4, and a manually operable pusher 40, Figs. 1, 2 adapted to displace the stencils along the tracks from a position over the moistening wick to a position over a blotter 52, Fig. 4, which removes excess liquid from the stencil surface. Further operation of the pusher causes the stencil 33 to move from the position over the blotter to a projecting position, as shown on the right hand side in Fig. 1, whence it may be removed for the formation of the characters on the stencil e.g. in a typewriter. The tracks 24, 26 have guide slots 30 formed in their opposed edges to receive the edges of the frames 32 of the stencil.  Under the stack S the upper walls of the slots 30 are cut away at 38 to allow the stencils to enter.  The wick 42 consists of a piece of material e.g. sheep's skin, the edges of which hang down into the liquid in a reservoir 46. The blotting means 52 comprises a sheet of absorbent material secured to a former 54 which presents four faces at right angles so that, by rotating the former by means of a knob 58 a dry face of absorbent material may be presented to the stencil surface.  The pusher 40 slides along guide track 24 and is attached to a long rod 66 passing through a bracket 70 against which bears a spring 74 surrounding the rod, biasing the handle 76 and pusher towards the position shown.  An abutment 40a engages the rear edge of the stencil frame and, on operation of the pusher, displaces it a distance determined by a limit stop 82.  To allow the stencils to pass over the wick and blotter the cover 14 and tracks 24, 26 carried by it are lifted, on displacement of the pusher, by the engagement of a roller 78 thereon with a cam slope 801 forming part of a rail 80 attached to the inside wall of member 10.  A resilient gripper 84 retains the stencil in the projected position.
Patent GB-722614-A (GB)
Title: Improvements in or relating to optical projection screens
Inventor: WHATLING FREDERICK WILLIAM
IPC: G03B21/60
Filed: 1952-03-28
Abstract: A method of manufacturing an optical projection screen for use, e.g. in television receivers, comprises supporting a sheet of deformable material on a former except at those areas where p  concavities are required to be formed and causing it to deform where unsupported so as to form over the surface of the sheet a multiplicity of shallow cavities.  A thermoplastic, e.g. methyl methacrylate, sheet is laid horizontally on a metal plate etched or perforated to form ribs and heated by steam until it is sufficiently plastic, when the steam pressure is increased and the sheet then deformed into the spaces between the ribs, after which it is cooled, e.g. by an air stream. Instead of the pressure being increased on one side of the sheet it may be reduced on the other to give the same effect.  Hot air or liquid may be used instead of steam, or dielectric high frequency heating may be employed.  The surface so formed may be aluminized to make it light reflecting.
Patent GB-270463-A (GB)
Title: Improvements in or relating to telescopic masts or posts
IPC: H01Q1/10
Filed: 1926-03-24
Abstract: 270,463. Hildick, H. March 24, 1926. Extensible posts. - In a telescopic mast or post, more especially for wireless aerials. the inner tube 7, Fig. 1. is fitted at the bottom with a catch which automatically locks the tube when the latter is raised by the cable 16, and is adapted to be released by a cable, preferably by the same cable 16. In one construction the catch comprises an angle lever 11 pivoted to a plug member 8 screwed on the bottom of the inner tube 7. In another construction a spring bolt 19, Fig. 5, is fitted within the plug member. In both cases the catch engages the lower edge of a slot 9<a> at the top of the outer tube 9. The catch is released by a shaped projection 17 on a swinging lever 14<a> pivoted to a collar 12 on the outer tube. The swing lever also carries the pulley 15 for the cable 16, and two pins 18 between which the cable passes so that the projection 17 may be moved to release the catch, or held away from the catch according to the angle at which the cable is operated.
Patent GB-1249763-A (GB)
Title: An improved method of producing metal wheels
Inventor: SCHULTE FRIEDRICH WILHELM
IPC: B21H1/10
Filed: 1970-02-19
Abstract: 1,249,763. Vehicle wheels. FUCHS G.m.b.H. 19 Feb., 1970 [20 Feb., 1969], No. 8089/70. Heading B7C. [Also in Division B3] An integral aluminium vehicle wheel made by the method of the invention (see Division B3) has a rim linked to a hub 25 by ribs 28 between which are "windows" 29. Around the hub are bolt holes 26 in machined faces 27.
Patent GB-443620-A (GB)
Title: Improvements in or relating to rotary pumps and compressors
IPC: F04D1/02
Filed: 1935-03-15
Abstract: 443,620. Centrifugal compressors. ROY, P. M. F. M., 22, Rue Laugier, Paris. March 15, 1935, No. 8103. Convention date, March 15, 1934. [Class 110 (i)] Gas pumped from the main blades b of a centrifugal compressor passes through a curved passage c with fixed guide vanes, and through auxiliary blades e at a constant or reduced pressure. The gas then passes between stationary guide vanes f to the diffuser. The passage c is square in cross-section and may be quadrantal in a longitudinal direction and the subsequent passage of the gas parallel to the axis of the compressor. Alternatively the passage c is semicircular in a longitudinal direction and a semicircular passage provided between the blades e and the vanes f. The passage h may be disposed on the far side of the vanes f. The blades e may be hollow and are cut or moulded under pressure. They are positioned on the impeller by a tenon k<1> and projection l and held by a nut m.
Patent GB-1222721-A (GB)
Title: Method of increasing the capacity of rotary vacuum filters
Inventor: LOPKER EDWIN BURTON
IPC: B01D33/06
Filed: 1968-02-20
Abstract: 1,222,721. Rotary vacuum filtration. E. B. LOPKER. 20 Feb., 1968 [15 May, 1967], No. 8143/68. Heading BID. In a rotary vacuum filter, slurry is supplied and filter cake discharged at N pairs of locations per revolution, N>1. The non-productive period of any elementary filter area during any one of the N filter cycles must not exceed (100)/(N+1) % of the total period of rotation of the filter: this condition (it is stated) results in a theoretical increase in capacity of 100 (#N - 1) % compared with those conventional filters for which N=1, assuming a O% non-productive filter area. As described the method is carried out on adapted rotary table or tilting cell filters, such as in Specification 2,684,158.
Patent GB-566309-A (GB)
Title: Improvements in and relating to package binding
IPC: B65B13/12
Filed: 1943-05-22
Abstract: 566,309. Packing-machines. CHEESMAN, J. J. May 22, 1943, No. 8160. Addition to 553,788. [Class 94 (i)] The machine for binding articles B with flexible strip S described in the parent Specification, in which a rigid ring 11, which is rotated unidirectionally to bind the strip S around the article B, carries a series of coplanar rollers 50x constructed as plain rollers without flanges, such as are used in the parent case to confine the coils of strip S which accumulate around the ring 11 as the strip S is fed from the source of supply. According to the invention, means are provided for radially containing the coils of strip S such that it automatically comes into or continues in operation after the supply strip to the coil is severed. This means comprises either (1) a pair of bands 57a, 57l, Fig. 1, anchored so as not to rotate, and kept under tension by springs 57h, 57i, so as to exert a clamping action on the coils. A gap between the bands 57a, 57l permits passage of the strip S to the machine. (2) Rollers 57s, Fig. 6, mounted on levers 57p are pressed on to the coils by means of a spring 57r connecting the levers. (3) Flat metal springs 57t, Fig. 7, press the coils against fixed plates 11c. The rollers 50x are arranged between lateral containing plates 50y, the height of which determines the depth to which strip can be acemnulated. The strip S is tensioned by means of rollers 53 mounted in a slot 53b in the ring carrier of the coil so that the distance between such rollers can be varied.
Patent GB-499166-A (GB)
Title: Improved filter for liquid hydrocarbons
IPC: C10G31/09
Filed: 1938-03-17
Abstract: 499,166. Filters. DONATI, V. March 17, 938, No. 8245. [Class 46] A filter for benzine 01 other liquid hydrocarbon comprises a bag 1 of deerskin or other material impermeable to water and of conical shape with rounded upper end. The liquid is delivered to the interior of the bag through a pipe 14 which has per forations 15, directed ob liquely upwards, and the upper end closed. The hydrocarbon filters out ward into the casing 9 and is discharged throngh an outlet at the upper end. Water and other impurities fall from the inner surface of the bag into a chamber with a glass wall 19 which may contain colouring matter, such as potassium permanganate, which is insoluble in hydrocarbon but soluble in water. As shown the bag 1 is arranged between similarly shaped perforated plates 2, 3.
Patent GB-911868-A (GB)
Title: Improvements in or relating to heaters
IPC: F24H3/04
Filed: 1960-03-09
Abstract: 911,868. Convertible electric heating units. VIDLER, A. E. March 9, 1961 [March 9, 1960], No. 8249/60. Class 39 (3). [Also in Group XIII] A heating unit casing which contains a heater 21, Fig. 4, has front and rear walls 3, 5 connected by side walls such as 4 which may be contracted or expanded to produce a casing which in its shallower arrangement acts as a convector heater and in its deeper arrangement acts as a drying cabinet. The heater unit is adapted to move from one position within the casing to a second position as the walls 4 are expanded or contracted. In a particular embodiment the side walls comprise a number of panels 4, 8, 10, 6, the end panels 4, 6 being rigidly fixed to the adjacent front or rear wall of the casing, and hingedly fixed to adjacent central panels 8, 10 which are themselves hinged together. The end sections of the casing are mounted on wheels 28 (although skids may be used) and the casing shown in the deeper position in Fig. 4 is converted into the shallow arrangement, Fig. 2, by moving the end sections towards one another; the panels 8 and 10 closing together internally of the casing and the heater simultaneously moving from the position shown to a vertical position within the casing end section 4, Fig. 2, the heater being secured in this position by suitable catches. Movement of the heater is facilitated by mounting it on a hinged flat plate 20 which may be lowered in order to facilitate convection currents passing through the unit in both its positions.
Patent GB-1478093-A (GB)
Title: Carrier-supported catalyst
IPC: B01J21/04
Filed: 1975-02-27
Abstract: 1478093 Exhaust gas catalyst HOECHST AG 27 Feb 1975 [14 March 1974] 8257/75 Heading B1E [Also in Division Cl] A supported-catalyst suitable for oxidation of carbon monoxide and hydrocarbons in I.C. engine exhaust gases consists of 0.2-10% wt, based on the weight of support of cerium in oxide form and a support which is a mixture of delta-alumina and alpha-alumina having an alkali content of up to 0.2% wt. The catalyst may be formed by compressing hydrous alumina, e.g. boehmite, or an anhydrous alumina other than alpha-alumina, e.g. delta-alumina, to form shaped bodies; calcining at 1000- 1250C for 10-20 hours; impregnating with a decomposable cerium salt; drying at 130- 150C; calcining at 200-300C; calcining at 450-550C; and calcining at 700-900C.
Patent GB-827124-A (GB)
Title: Capacitively coupled cavity resonator
IPC: H01P7/06
Filed: 1958-03-14
Abstract: 827,124. Microwave filters. STANDARD TELEPHONES & CABLES Ltd. (Lorenz A.G., C.). March 14, 1958, No. 8292/58. Class 40 (8). A narrow-profile rectangular waveguide 4 (i.e. the ratio of the sides is substantially less than 1:2) is coupled to the current in a cavity resonator through a terminal capacity. The capacity is provided by a rod 3 which extends completely across the wide dimension of the waveguide. The rod may be provided with a flat so that the capacity may be varied by rotation of the rod. The cavity 1 may be in the form of a cylinder having a circular or oval cross-section, the waveguide coupling lying along a generatrix of the cylinder. A circular cylinder is excited in the H111 mode and an oval cylinder in a degenerate H111 or H101 mode. In a modification, a rectangular cavity is used. Several cavities in tandem may form a filter. The cavities are either directly coupled through a single capacity, or are spaced apart by a quarter-wavelength.
Patent GB-163980-A (GB)
Title: Improved manufacture of formaldehyde
IPC: C07C45/38
Filed: 1921-03-16
Abstract: Formaldehyde is prepared by passing methyl alcohol vapour and an oxygen-containing gas over vanadium pentoxide mounted on a carrier at a temperature of, say, 275 DEG  C.; the air supply may be in considerable excess of the theoretical, and the methyl alcohol may be a wood spirit containing impurities such as acetone.
Patent GB-287483-A (GB)
Title: Improvements in pivoting headlights
IPC: B60Q1/14
Filed: 1928-03-19
Abstract: 287,483. Lespinat, G., and Kalhaus, E. March 21, 1927, [Convention date]. Lighting, systems of; lantern shutters; mounting electric lamps in lanterns. -A vehicle headlamp or auxiliary lamp operated by the steering gear is provided internally with an antidazzle screen arranged so that, when the vehicle is travelling straight ahead, the screen is disposed transversely of the lamp to screen the light projected therefrom, and, when the vehicle is passing round a curve, the screen is rotated in the opposite direction to the lamp into such a position that unscreened light is projected on to that part of the road to be traversed bv the vehicle, whilst the light remains screened in the direction of an oncoming driver or pedestrian The lamp casing 3 is carried by an axle 2 which is rotated by the steering gear and carries a gear wheel 17 which engages a small pinion 18 on a shaft 19 carrying a yellow glass or like screen 20, the gears being so chosen that the angular movement of the screen is twice that of the lamp. The axle 2 is surrounded by a spring 15 and is formed with double ramps for coacting with a correspondingly shaped member 16 on the support 1, so that, when the vehicle returns to a straight course, the lamp and screen are automatically returned to, and held in, their normal positions. An electric lamp bulb 8 is carried by a socket 9 integral with a member 10 which acts as a closure for reflector 7 and is made integral with a cover 11 secured to the lamp casing 3 by a bayonet joint
Patent GB-137197-A (GB)
Title: Improvements in or relating to metal spars or built-up girders
IPC: B64C1/06
Filed: 1919-04-02
Abstract: 137,197. Vickers Ltd., and McKechnie, Sir J. April 2, 1919. Grant of Patent refused. Framework.-In built-up metal girders, spars, or struts for aeroplanes, rigid airships, &c. of the type in which two main channels are connected together through their side flanges by bracing- members riveted, welded, &c. thereto, the main channels A are corrugated longitudinally. Various forms of corrugations are described. The side flanges may be separate or riveted to the channels.
Patent GB-892305-A (GB)
Title: Chromatographic control system
IPC: G01N30/86
Filed: 1960-03-10
Abstract: 892,305. Automatic mixture-control systems. BECKMAN INSTRUMENTS Inc. March 10, 1960 [June 29, 1959], No. 8409/60. Class 38 (4). An output pulse of a gas chromatograph analysing a mixture is selected corresponding to one component of the mixture, stored, and utilized to automatically control the quantity of that component by controlling an input variable of the process producing the mixture. In Fig. 1, raw material for the production of propane is conducted through a pipe 11 to a reaction unit 10 and heat is supplied from a source 12. The temperature of the output is measured by a sensing unit 15 a signal from which controls, by means of a valve 13, the heat input to maintain the output temperature at a desired value. The output is periodically sampled by a gas chromatograph 17 having a column in which constituents are separated one by one by a carrier gas stream to influence a thermo-conductivity bridge generating a train of pulses the magnitudes of which correspond to the quantities of the constituents. These pulses are applied to a control unit 18 which produces pulses of the same peak amplitude sustained for a longer duration as in Specification 852,869. Such longer duration pulses corresponding to the ethane content are selected by a timing unit which may be synchronized with the chromatograph and caused to control the position of a servomotor 19 adjusting a temperature setting device 16. Arrangements in which servomotor 19 is a fluid pressure motor or an electric motor operating a follow-up potentiometer are described. The servomotor is held in position between each sampling by storing the pulse in a pressure reservoir, an electrical capacitor, or an analogue to digital converter. In a modification in which ammonia and carbon dioxide are mixed to form urea, the ratio of the constituents is automatically maintained constant by varying the relative quantities supplied in dependence on the ratio of the amplitudes of the long duration pulses produced from chromatograph pulses corresponding to the two constituents.
Patent GB-463831-A (GB)
Title: Improvements in sole gluing presses
IPC: A43D25/06
Filed: 1936-03-20
Abstract: 463,831. Boot - making machines. MICHALK, O. March 20, 1936, No. 8420. Convention date, March 27, 1935. [Class 17 (i)] Levelling.-In a shoe-glueing press comprising a carrier which is moved forward in steps to prasent the presses to a station where the pressure is relieved for the insertion of a fresh piece of work, the press carrier is in the form of a wheel having one tooth for each press, the teeth engaging a driving chain which is automatically stopped when the carrier has moved forward to the next operating position. The wheel 1<1>, Fig. 1, the teeth 1 of which engage the chain 28 is driven from a pulley 25 and worm gearing through a clutch 24, Fig. 4b, which is controlled by a lever 23<1> operated by a second lever 22. The latter is operated by a cam 3 on the driving shaft 261 and is mounted on a shaft 22<11> which can be rocked by a pedal 4, against the influence of a spring 27, to move the lever sideways off the cam 3, and thus throw the clutch 24 into operation. The release of the pedal permits the lever 22 to return into the path of the cam 3 to effect the disengagement of the driving clutch when the wheel has been rotated one step. The cam 3 is formed on a sleeve which drives the sprocket 28<1> through a dog clutch which can be thrown out of operation, for hand adjustment of the wheel, by a pedal 6. The presses comprise platens 5, Fig. 6, secured to the wheel and pressure levers 12 to which yoke members 121, 1211 are secured, are operated by fluid pressure, being held in their operative positions by pivoted pawl members 14 engaging ratchets 15. The pawl members have release rods 19 which project into the path of a fluid operated member 17<1>. The valves for the pressure fluid are operated by a pedal 4<1> fitted with a locking member 9 which is released by the operation of the pedal 4. Specifications 381,511 and 402,540 are referred to.
Patent GB-258912-A (GB)
Title: Improvements in and relating to surface condensers
IPC: F28F19/00
Filed: 1925-03-30
Abstract: 258,912. Parsons, Sir C. A. March 30, 1925. Facilitating flow of fluid.- A screen is arranged in the water-box of a condenser, at the entry end, in front and spaced apart from the tubeplate, comprising a series of juxtaposed ducts with their axes parallel to the axes of the main tubes, the ducts being long in relation to their transverse dimensions and the number being preferably large in relation to the number of the condenser tubes. Two screens A, B may be used. The screens may be made of corrugated plates soldered together, of a number of juxtaposed short tubes, of a drilled solid plate, or of a number of tubes projecting from a tube plate. Each duct thus formed may be subdivided by plates inserted in the bores.
Patent GB-279321-A (GB)
Title: Improvements in devices for separating oil and water from air
IPC: B01D45/08
Filed: 1927-03-28
Abstract: 279,321. Stephan, E. H. March 28, 1927. Separators to be inserted in compressed air pipe lines for separating oil and water from the compressed air comprise a casing 1 containing a hollow perforated cylinder 9 closed at one end and in communication at the other end with the air inlet 3 to the casing, and a roll of wire gauze 19 placed around the cylinder between the cylinder and the drain outlet 5. The air passes through the gauze to an outlet 10 at the top of the casing. The gauze is spaced from the cylinder and extends below the perforations 11 therein. The cylinder is formed integral with a sleeve 13 having side apertures 14, flange 17 forming a tight joint with the bottom and formed with a screw threaded collar 7 and a of the casing. The gauze is held by a cap 20 secured to the top of the cylinder by a screw 22. An annular baffle 6 extends into the casing in the path of the escaping air. A drain outlet 16 at the bottom of the sleeve 13 is fitted with a drain cock.
Patent GB-796877-A (GB)
Title: Improvements in releasable couplings
IPC: B64D17/32
Filed: 1955-03-24
Abstract: 796,877. Releasable fastenings. MARTIN J., and MARTIN-BAKER AIRCRAFT CO. Ltd. June 20, 1956 [March 24, 1955], No. 8580/55. Class 44 A releasable coupling comprises plug and socket components 1 and 9 adapted for colinear interengagement and of which the plug component 1 is formed with a root and a tongue 4 or reduced width having adjacent the root and at least at one side thereof a laterally and inwardly - extending notch 6 and the socket component being formed with a jaw adapted to receive the tongue 4 of the plug component and having mounted therein a laterally inwardly directed plunger 14 spring-biased inwardly from its retracted position and adapted, when the plug is inserted into the socket component, to engage the notch 6 in the tongue of the plug, the socket component also being formed with a recess 13 at a side thereof and having a trigger 18 adapted, upon application of inward pressure thereto, to effect movement of the plunger 14 to its retracted position, the trigger being pivotally mounted on the socket component so as to be located when the plug is inserted in the socket, wholly within the recess. As shown the coupling is adapted for releasably connecting a parachute webbing 3 to a strap 12 of a body harness. The socket component is provided with a pair of plungers 14. If desired only one such plunger may be provided, but two notches 6 are provided as shown to facilitate reversibility of the plug component 1. The plungers and triggers may be one-piece components.