baber/WOPTO huggingface dataset:
Patent GB-734277-A (GB)
Title: Improvements relating to the manufacture of moulded blocks, slabs and the like
IPC: B28B7/02
Filed: 1952-05-19
Abstract: 734,277. Apparatus for moulding building blocks &c. BURCHETT, R. S., and PLUMMER, A. H. May 18, 1953 [May 19, 1952], No. 12590/52. Class 87 (2). Apparatus for moulding blocks, slabs and the like comprises a support or stand for a pallet or other carrier for the material to be moulded, an independent peripheral mould wall, portable relatively to the support and of less height than that of the support, and finger-operated means carried by the wall for holding said wall in a higher position where, with the pallet, it constitutes an open topped mould above the stand, and for allowing the wall to descend to a local position where it leaves the pallet and the moulded article exposed for removal. The support is of metal and is a welded assembly comprising a flat top 2 flanged to fit over flanged end 1. The mould wall 3 is of sheet metal, with top and bottom flanges 3a, less in height than the overall height of the support and slightly longer than the length of the top 2 to give the pallet 9 a slight overhang which enables it to be lifted easily. A long flanged plate 7 is pivoted between brackets on each end of the mould wall, its top flange being near enough to the top flange 3a to allow the user to turn it about its pivot by the pressure of his fingers and thumb on the two flanges. When in the inner position shown the plates 7 form struts to hold up the mould wall, the struts being slightly inclined to the vertical in a position limited by the bottom flange 3a or by stops 8 which meet the ends 1. An alternative construction is shown in Fig. 5, which shows the mould wall lowered instead of raised as in Fig. 1. In this construction the mould wall is held up by latches which comprise arms 15b pivoted to lugs 17 on the underside of the bottom flanges 3a and having bottom extensions 15a which can rest on ledges 14 on the ends of the support. The latches swing inwards when the mould wall is lifted, so automatically engaging the upper sides of the. ledges 14, and they are released by raising them by handles 16. There may be more than one set of ledges 14, at different levels, to mould blocks of different thickness. Handles 13 may be used to lift the pallet carrying its moulded block, the pallet in this construction being of sheet metal with a flange 12 at each end which is received in a groove 13a in the handle 13. The pallet in Fig. 1 may also be of sheet metal, or other material such as asbestos or wood; and to obtain different sized blocks, pallets of different thickness may be used or pallets raised on supports. Cases may be used for hollow blocks, positioned by projecting pins which fit into corresponding holes in the pallet. Liners may be placed inside the mould wall to give any desired surface to the moulded block, including a groove at one end and a tongue at the other. The mould wall may be mounted on guides and retained against complete removal by stops, and its top flange may be used as a support for a screed. The shoot may be moved to the supporting position by springs.
Patent GB-1025490-A (GB)
Title: Improvements in hen houses
IPC: A01K31/22
Filed: 1964-03-25
Abstract: 1,025,490. Poultry houses. E. V. ESPENHAHN. March 9, 1965 [March 25, 1964], No. 12607/64. Heading AIM. A poultry house for free range poultry is provided with an entrance 1 having a sliding door 3 to which is attached a nut 9 which runs on a screw 8 driven by a reversible electric motor 8 actuated under the control of a time switch, switches 12, 13 being provided to stop the motor when the door reaches its fully closed or fully open position. A further switch 14 actuates an electric fence round the range area when the door 3 is open. A fox-trap 2 is located adjacent entrance 1 and is closed by a curtain 7 attached to bracket 6 on door 3 so that as the door is raised the curtain 7 is also raised. The trap comprises a hinged flap 15 attached by a cable 16 to a latch 18 supporting; a door 20 the arrangement being such that pressure on the flap 15 pulls latch 18 clear of flange 21 on the door which therefore falls to close the trap. One or more feed hoppers may be provided within the house having covers raised or lowered by motor driven screw mechanisms controlled by time switches. A brooder B is provided. The door 3 may be opened by a time switch and closed by a photo-electric device.
Patent GB-298582-A (GB)
Title: Improvements in or relating to the reception of radio signals
IPC: H01Q15/02
Filed: 1927-05-11
Abstract: 298,582. Baird, J. L., and Baird Television Development Co., Ltd. May 11, 1927. Undesired signals, eliminating ; secret and selective signalling systems. - The received radiation is caused to produce a spectrum, and the receiver is placed at a point on the spectrum corresponding to the desired wave-length. The spectrum may be produced in a manner analogous to the diffraction grating in optics by means of a number of parallel conductors 10, Fig 1, spaced apart a distance comparable with the wavelengths used, and lying on a plane across the direction of propogation. A spectrum is formed behind the grating, and the receiver, tuned to the desired wave, is placed in a suitable position in the spectrum. Alternatively the spectrum may be produced by prisms or lenses made of sulphur, pitch, or other insulators; or a prism may be formed, as shown in Fig. 2, by a number of parallel plates 11 - - 13 of the same length but different width, arranged to give a triangular outline in plan. The system is particularly applicable to the reception of short waves.
Patent GB-1427977-A (GB)
Title: Structure for encapsulating or filling articles with viscous compositions such as casting resins
IPC: B01F15/04
Filed: 1973-03-15
Abstract: 1427977 Mixing apparatus VERFAHRENSTECHNIK HUBERS KG 15 March 1973 [17 March 1972 8 July 1972 16 Nov 1972] 12631/73 Heading B1C [Also in Division F1] In an apparatus for encapsulating or filling articles with viscous liquid, e.g. casting resin, pumping and mixing components of the apparatus are mounted in a metal block 12 of good thermal conductivity, e.g. aluminium, conduits connecting the components being formed directly in the block. Constituents of the liquid enter premixing chambers 14, 14' and are delivered by pumps 16, 16' through a mixer 20 to an outlet 21. Mixer 20 comprises a perforated plate 34, Fig. 2 (not shown), reciprocated by a crank drive. Each pump comprises a plunger 24a, which moves out of gasket 27 on its upward stroke for liquid to flow through the gasket aperture into the pump cylinder, from which it is discharged during the downward stroke via check valve 18. A rinsing agent is admitted into delivery passage 22c from reservoir 58b if a blockage occurs. The temperature and pressure of the liquid are detected by thermometer 54a and manometer 56a connected to alarms. The whole or parts of the block may be heated. In Fig. 4 (not shown), a plunger guide and position indicator are provided. The block 12 has a hinged door 46 of transparent material, or with windows, for access to the components. Plungers 24a and gaskets 27 of different sizes may be used to provide different outputs. The pump plungers are reciprocated by an actuating cylinder 25. The liquid in chamber 14 may be pressurized by gas pressure or a mechanically actuated piston. In Fig. 5 (not shown), the appratus is movably mounted on a vacuum chamber enclosing a movable table for supporting the articles to be encapsulated or filled.
Patent GB-552375-A (GB)
Title: Improvements in and relating to rotary electric switches
IPC: H01H19/08
Filed: 1941-09-30
Abstract: 552,375. Snap-action switches; switch bases. TURNER, C. A., and "DIAMOND H" SWITCHES, Ltd. Sept. 30, 1941, No. 12645. [Class 38 (v)] An insulating switch-base is provided with separate recesses or pockets at the rear for locating and isolating the switch contacts and cables and lugs attached thereto preferably by projecting ribs and a backing plate of insulating material. In the example, described with reference to a rotary snap action changeover switch with step-by-step movement of bridging contacts n, m between four pairs of spaced fixed contacts d, the terminal posts f lie in sectorshaped recesses formed by ridges 4, 5, and they, with connecting lugs 11 and rubber enclosing sheaths 8, are further enclosed by a clamping plate 6 held by screws. The cover b has a skirt h fitting closely over the body a and abutting against a flange p, and the operating shaft k has a cap v, provided with winged indicating parts wand a skirt t fitting over a dome-like part i of the casing.
Patent GB-514277-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G23/32
Filed: 1938-04-29
Abstract: 514,277. Weighing-apparatus; testing balance of connecting-rods &c. SULLIVAN, J. F. April 29, 1938, No. 12868. [Class 143] [Also in Group XX] A weighing scale which may be adapted for testing the balance of connecting- rods comprises a housing having a window in one of its walls, a scale beam therein, a load platter disposed exteriorly of the housing and supported by the scale beam, a pointer disposed in the housing and carried by the support for the load platter, a weight indicia chart arranged in the housing and visible through or in the window, and a projecting means including a source of light arranged in the housing in the path of movement of the pointer for projecting the image thereof on to the chart for correlation with the weight indicia in accordance with the weighing movement of the beam. As shown in Fig. 2, the scale beam 24 is situated within a casing having a hood-like extension 14 which may be opened about a hinge 15 to give access to the interior. The beam structure carries a slidable poise weight and an adjustable balance ball. Loose weights 37b stored within the casing may be placed upon the weights pan 37 when required. The inner end of the beam is resisted by U-shaped springs 46. Stops for beams.-Rubber-tipped bumpers 61 and similar bumpers (not shown) at the other end of the beam, limit the movements of the beam. Indicating-mechanism.-The hanger leg 38, of the commodity platter 34 carries an horizontal pointer 76 situated between condenser and projecting lenses 74, 75. Rays from a lamp 72 project a shadow of the pointer on to a fixed chart 77 viewed through a window 17. The chart may be graduated for under-and-over weights or for ordinary straight weighing. The chart 77 may be replaced by an inclined mirror which reflects the image of the pointer on to a translucent graduated chart replacing the window 17. In an arrangement for weighing or testing the balance of connecting-rods, two of the weighing scales described above are arranged parallel to one another, the indicating charts being both visible through a common window. The commodity platters 96a, 97a, Fig. 12, are bridged by a cradle member 108 pivoted at one end on two knife-edges 110 and supported at the other end on a pointed strut 124. The connecting-rod A is placed on the cradle with its opposite ends resting on conical positioning bosses 115, 118. The weights of the two ends, or their departures from standard weight, are then indicated on the corresponding charts.
Patent GB-1198979-A (GB)
Title: Educational Games
Inventor: MEADOWCROFT ERNEST WILLIAM
IPC: G09B1/04
Filed: 1969-03-12
Abstract: 1,198,979. Word-building cubes. E. W. MBADOWCROFT. 21 April, 1969 [12 March, 1969], No. 12934/69. Heading A6H. For use in a game based on constructing punctuated sentences or phrases there is provided a set of cubical blocks, the faces of each block or at least the bulk of them each carrying an indicium, the indicia in the set consisting of letters of the alphabet and punctuation signs. As described the set is formed of sixty blocks bearing capital and small letters and punctuation marks, there being three blocks of each of twelve forms and two block of each of another twelve forms.
Patent GB-971558-A (GB)
Title: Improvements in and relating to pressure-sensitive adhesive tapes
Inventor: LLOYD RONALD
IPC: C09J7/02
Filed: 1962-04-04
Abstract: Pressure-sensitive adhesive tapes, having a backing formed from a plasticized polyvinyl chloride composition, are produced by extruding the composition whilst hot through an annular die, preferably with air or other cooling means adjacent thereto to cool the extruded composition issuing from the die, inflating or blowing to form a tubular film of the set composition, drawing off and flattening the tube between take-up rollers, slitting in the longitudinal direction of the tube to change it from the tubular to sheet form, spreading a tie-coat and then a pressure-sensitive adhesive composition over one surface of the sheet, and then splitting the thus coated sheet into tapes of the required width, or winding the coated sheet into rolls and subsequently splitting the coated sheet into tapes.  The plasticizers utilized in the polyvinyl chloride composition may have high non-migration properties and low volatility.  When solid rubber is included in the composition, the rubber is banded on a rubber mill at an advanced temperature, and the polyvinyl chloride and other raw materials, premixed at room temperature, are gradually added to the banded rubber during the continuance of the milling, the milling is continued for a further period after the addition, the hot composition sheeted off, cooled and chipped to form particles of a size for feeding to the hopper or the like of the extruder. The pressure-sensitive adhesive tapes are stretchable in both the transverse and longitudinal directions.  The blow ratio, i.e. tube or bubble diameter/die diameter, and take off speed, may be varied to vary the stretch in the transverse and longitudinal directions. Specific examples of plasticized polyvinyl chloride composition, tie coat and pressure-sensitive adhesive compositions are given.
Patent GB-401340-A (GB)
Title: Process for producing colour pictures from silver pictures
IPC: G03C7/28
Filed: 1932-05-05
Abstract: 401,340. Colouring photographic pictures. GROVES, W. W., 30, Southampton Buildings, London.-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany.) May 5, 1932, No. 13006. [Class 98 (ii).] Colour pictures are produced from silver pictures by applying to the photographic material an azo-dyestuff capable of being reduced by sodium hydrosulphite and whose reaction products with silver, after the treatment with hydrosulphite, are soluble in water or in aqueous solutions and do not readily regenerate the dye under the influence of oxygen, treating the dyed picture with an acid solution containing a reducing agent, which does not reduce the dye when used alone, and an agent, such as thiourea, capable of forming a complex silver compound, and treating the material in a fixing solution. Examples of reducing agents are hydriodic and hydrobromic acids. A bleaching solution of acidified copper chloride may be used before fixing. A suitable solution for the process comprises iodine, potassium iodide, sulphuric acid, sodium sulphite, and thiourea. Suitable dyes are Congo Sky Blue, Sirius Red-violet R, Sirius Ruby B, Benzo Light Yellow, Chrysophenin G or W, Brilliant Benzo Fast-Green, and Benzo Light-red 8BL. Several differently coloured layers may be treated simultaneously.
Patent GB-400120-A (GB)
Title: Improvements in or relating to umbrella tents
IPC: E04H15/28
Filed: 1933-05-04
Abstract: 400,120. Tents. STUTTGEN, 0., 17, Wederstrasse, Dresden, Germany. May 4, 1933, No. 13060. Convention date, Oct. 12, 1932. [Class 20 (i).] A tent is formed of two half-umbrella tents with an intermediate longitudinal cover and a divided strut c between the poles a. Supports i, k are provided for a tensioning member d between the poles. Elbow stops e at the outer ends of the divided strut maintain the poles in upright position.
Patent GB-655200-A (GB)
Title: Valve for pneumatic brake systems for vehicles
IPC: B60T15/54
Filed: 1948-05-13
Abstract: 655,200. Fluid-pressure brakes. MASSARDI, P. May 13, 1948, Nos. 13157 and 13158. Convention dates, May 17, 1947, and Oct. 30, 1947. [Class 103 (i)] A relay valve for use in a fluid-pressure brake system of a tractor-trailer combination and which is fitted on the trailer, comprises a hollow casing 1 divided into four chambers A, B and 8, 9 by two diaphragms 4 and 7, which are connected by a rod 14 extending through an axial passage 13 connecting the chambers B and 8 and having a branch connection 12 connected to the trailer brake cylinders. For normal operation of the valve to apply the trailer brakes, the diaphragm assembly is moved downwards under the action of the tractor vehicle control valve pressure in chamber A, atmospheric pressure in chamber B, trailer vehicle reservoir pressure in chamber 9 and tractor vehicle reservoir pressure in chamber 8. It is arranged that the valve member 43, secured to diaphragm 4, engages the spring valve seat 38 to close the release to atmosphere through port 6, before the collar 26 on the rod 14 depresses the valve member 25 to allow air from the trailer reservoir connected to port 11 to pass up passage 13 and out through port 12 to apply the trailer brakes. When it is desired to permanently release the trailer brakes, manual eccentric cam lever 35 is operated to raise the diaphragm assembly back to the position shown so that air may escape through the port 6. In the event of the trailer becoming disconnected from the tractor vehicle, since the chambers A and 8 will then be at atmospheric pressure, trailer reservoir pressure acting in chamber 9 depresses the diaphragm assembly to allow air to pass to the trailer brake cylinders to apply the brakes thereof. The nut 16 securing the rod 14 to the lower diaphragm 7, which is shown in section in Fig. 2, contains a non-return ball valve enabling air to pass from chamber 8 to chamber 9. In a modification of the valve for fitting on the tractor vehicle, so as to influence the braking of the tractor rear wheels, as well as the trailer, the ball valve 17, 18 is omitted.
Patent GB-131143-A (GB)
Title: Caburettors for Internal-combustion Engines.
Inventor: GILDERTHORP STANLEY
IPC: F02M9/133
Filed: 1918-08-14
Abstract: 131,143. Gilderthorp, S. Aug. 14, 1918. Spray carburettors.- A disk-like air valve l which may be moved by suction or positively in a ported barrel r actuates a fuel valve d either separate from or formed integral with the air valve. The barrel r is wider at the upper than at the lower portion to prevent binding of the valve. The fuel valve is tapered or provided with flats or flutings, and may have a head f to effect closure of the fuel passage, which head may be forced to its seat by a spring v. To vary the proportion of air to fuel, the nozzle is adjusted axially by a right and left handed screw and a nut g provided with a pointer k. Air enters through gauze-covered openings t and passes around the edge of the valve into the annular space s, and then through the ports r above the valve to mix with the fuel. The valve may have a ported cylindrical upward extension acting as a variable choke tube, and the central portion of the valve may be formed with spiral or like vanes to redirect the fuel back into the air current. The movements of the air valve are limited in one or both directions by an arm engaging nuts on the spindle thereof, and are damped by washers o in a cylinder p.
Patent GB-465925-A (GB)
Title: Improvements relating to window sash balances
IPC: E05D13/00
Filed: 1936-05-11
Abstract: 465,925. Sashes balanced by springs. TRIGGS, W. W. (Pomeroy Co., Inc., S. H.) May 11, 1936, No. 13248. [Class 20 (iii)] Relates to window sash balances of the type in which lowering of the sash causes winding of the coils of torsion springs by nuts which traverse helical strip members secured to each side of the window frame, in order that the energy absorbed by the springs during lowering of the sash may be utilized for raising the sash. According to the invention, a tension spring is incorporated in each balance, and the pitch of the helical members varies throughout their lengths so that the force exerted by the combined springs during raising of the sash is substantially constant. In the form shown in Figs. 2 and 5, each helical member e, which is secured at its upper end to the window. frame a, is engaged by a nut d<2> in a sleve d<1> secured to the upper end of the torsion spring d, the lower end of which may be connected with a clutch d4 by which the degree of initial torsion of the spring may be varied. The helical member and torsion spring are mounted within a tube c secured to the bottom of the sash by a bracket c<1> and surrounding this tube is the tension spring g attached at its upper and lower ends to the frame and sash, respectively. In the case of the lower sash, the tension spring is fully extended in the closed position. Fig. 12 shows a modification in which the helical member is attached to the bottom of the sash and in which the helical spring, whose coils are formed from material of tilted rectangular cross-section also fulfils the function of the tube c in preventing lateral deflection of the torsion spring.
Patent GB-893693-A (GB)
Title: Apparatus for producing an aerosol
IPC: B05B3/10
Filed: 1958-04-25
Abstract: 893,693. Spray-producers. DEFENSOR A.G. April 25, 1958 [April 27, 1957 ; April 11, 1958 (2)], No. 13284/58. Class 69 (3). In an aerosol producing apparatus, liquid is fed to the space between two rotating discs I engaging at their peripheries, and is flung from them as a thin film which is broken up by an air stream delivered through an annular channel e. Those droplets not properly engaged by the air stream impinge on lamellae 7 spaced around the discs at the outlet of the channel e, and are then carried off by the air stream. The discs are carried at the front end of a hollow shaft i of an electric motor a, and an impeller k is attached to the rear end of the shaft whereby air is drawn into the apparatus and delivered via parallel vanes c through the channel. When the discs are rotated liquid is drawn through a hose o from a detachable liquid tank n, and is driven past a regulating valve r, and a stationary bellows t to the bore of the motor shaft from which it passes to the disc space. A handle ii, a motor control switch ll, and a support nn are provided. The lamellae 7 are inclined to the radial direction of the discs, and may be so inclined and spaced to prevent liquid particles flung from the discs from passing between them. In further embodiments the lamellae or vanes have various shapes and may extend only partly across the width of the air channel. Specification 893,694 is referred to.
Patent GB-153537-A (GB)
Title: Improvements in steering devices for toys
IPC: B62K9/00
Filed: 1920-05-13
Abstract: 153,537. Banks, A. E., (trading as Panurge). May 13, 1920. Mechanical toys.-A steering-mechanism as described below for wheeled toys is also provided with means for attaching a cord or the like in order that it may be actuated when the toy is pulled along by the cord. The front wheels of the toy are mounted on stub shafts E formed on cranked members D pivoted to the chassis A, and the cranks are connected by a bar C. A pin J projecting from the bar C engages in a slot I in a plate G which is pivoted to the front crossmember B of the chassis, and the plate G has a hole K for the attachment of a cord. Thus when the toy is pulled by the cord, the plate G is deflected, and the toy steered in the direction in which the cord is pulled. The toy may also be steered by a steering-column 0 which is pivoted at its lower flattened end in a slot H in the plate G. A toy horse mounted on wheels may have the steering-column provided with a universal joint and passing through the chest or through the mouth and connected to the reins.