baber/WOPTO huggingface dataset:
Patent GB-627187-A (GB)
Title: Improvements to driving mechanisms for rotary switches
IPC: H01H63/20
Filed: 1947-08-01
Abstract: 627,187. Electromagnetic interrupters. STANDARD TELEPHONES & CABLES, Ltd. Aug. 1, 1947, No. 21020. Convention date, July 24, 1945. [Class 38(v)] In an electromagnetic step-by-step switch with self-interrupter contacts suitable for use in automatic telephones, the driving electromagnet 27 has a main armature 10 which drives the pawl-and-ratchet mechanism 8, 4 and is coupled by a lost motion device to an auxiliary armature 22 which controls the interrupter contacts 20, 19. With the parts in the position shown the contacts 20, 19 are closed and the magnet 27 energized. The armature 10 moves up the pawl 8 slipping over one tooth of the ratchet wheel and a rod 12 being raised against the action of a spring 18 till, near the end of the stroke a shoulder 43 on the rod engages the auxiliary armature 22 and allows spring contact 20 to separate from contact 19. The electromagnet being now de-energized, armature 10 drops, the ratchet wheel is rotated one tooth and at the end of the stroke nut 23 engages armature 22 to move it back to the position shown in which the contacts are again closed.
Patent GB-646802-A (GB)
Title: Fluorescent material
IPC: C09K11/71
Filed: 1947-08-01
Abstract: 646,802. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 1, 1947, No. 21075. Convention date, June 5, 1946. [Class 39 (i)] A luminescent material consists of thallium activated calcium phosphate in which the ratio of the number of atoms of calcium to phosphorus is 1.3. In preparation, 675 grams of the phosphate and 34 grams of thallium sulphate are milled in 1900 c.c. of acetone for 3 hours, dried and fired at 950‹ C. for 17 hours. Suitable proportions of tricalcium phosphate, free from traces of ammonia, and secondary calcium phosphate are used to produce the required phosphate. The content of thallium sulphate may vary between 3 and 10 per cent by weight and of thallium between 1 and 8 per cent by weight. Thallium chloride may also be used. The material produces radiation of 2900-3100 A.U. and a peak radiation of 3350 A.U. when irradiated at 2500 and especially 2537 A.U. It may form an internal coating of a mercury discharge lamp, the glass wall of which is opaque to radiation of 2537 A.U. A thicker coating of material is used to reduce to the required extent the radiation of 2537 A.U. when the glass is transparent thereto. The temperature of the coolest part of the lamp may be 40‹ C. and the discharge current may be three times that corresponding to maximum efficiency. Specification 577,693 is referred to.
Patent GB-532264-A (GB)
Title: Improvements in and connected with valve devices particularly adapted for use in connection with aircraft tanks
IPC: F16K3/10
Filed: 1939-07-20
Abstract: 532,264. Valves. AIRCRAFTINGS, Ltd., BROWN, F. V., and COHEN, I. July 20, 1939, No. 21112. Addition to 500,966. [Class 135] A valve device particularly applicable for use as a fuel jettisoning valve on aircraft and of the kind claimed in the parent Specification has the valve disc pivoted on the cam track which serves for pivoting the disc near its periphery, the said track being mounted on an adjustable pivot. The track 15 has a lug 39 taking between ears on the valve disc and is attached thereto by a pivot 38 secured by split pins. Flats on the lug and disc separated by a small clearance prevent undue tilting of the disc. The track is mainly arcuate in plan and the cam slot has its upper edge slightly inclined upward towards the pivot to facilitate loosening the disc while the lower edge has a comparatively sharply inclined part 45 continued by a less sharply inclined part and a level part to ensure powerful leverage for the final closing of the valve and self-locking qualities. The pivot for the track has an eccentric intermediate portion 49 working in a bush in the track with concentric parts 48 and 50 engaging lugs 20 on the disc. The pivot is held in its adjusted position by a square or polygonal head 46 engaging a flat on one of the lugs. A straight operating arm carrying the roller 35 may be used in place of the curved arm employed in the parent construction.
Patent GB-505614-A (GB)
Title: Improvements in or relating to implements or appliances for cutting thistles and thelike
IPC: A01B39/04
Filed: 1938-07-16
Abstract: 505,614. Cutting thistles &c. CRAWFORD, A., CRAWFORD, D. R., and BARSBY, R. July 16, 1938, Nos. 21166 and 25599. (Class 6 (iii)] An appliance for cutting thistles or like weeds comprises a cutting member formed by a pair of thin blades or bars 1 arranged in the form of a V and connected at their rear ends by a transverse bar 2. The blades have undulating cutting edges and are preferably carried on bars 3. The transverse bar 2 is secured at each end by a stud 6 and nut 7 to a column 5 that is attached by a stud 51 to a bracket at the end of the blade. At their forward ends the blades are secured to a triangular bracket consisting of a top 8a from which vertical walls 8b depend and which is provided with a raised middle part 10 having at its rear a slotted arcuate flange 12 and at its front end a downwardly inclined piece 8c : a rounded nose-piece 14 is secured to the piece 8c. A cover 15 of sheet metal is arranged over the bracket. Converging bars 16, 17, riveted to the part 10 extend upwardly and forwardly and the extension, is bifurcated parallel to the cutting blades to take a lug forming part of a joint 23, 24, 25. by which the extension is attached to rods 27 pivoted in eyes 30 provided on the back of a bar 28 which may be-provided with shafts 32 or attached directly to the harness of a draught animal. Wheels 39 or runners may be fitted at the ends of the bar 28. Wires or cables 42 extend/between the ends of the bar 28 and the transverse bar 2 to control the lateral movement of the cutter, the lengths of the cables being adjustable and the attachment to the rear bar being through breakable pins. The blades 1 may be adjusted in height by swinging them about the axes of the studs by which they are attached to the columns 5 and to the bracket-8, these studs being then clamped to maintain the blades at the desired angle by wing nuts 53, 63 respectively. To permit the blades to be collapsed towards each other for transport after the transverse bar 2 is removed the forward bracket of each blade is secured to the part 10 of the bracket 8 by a pivot stud 65a and a rear stud 65b passing through the slotted part 12 and adapted to be gripped in a direct position by a wing nut 68. The lateral movement of the cutter may be controlled by handles instead of by the cables 42. The blades may be formed integrally into a triangular shape instead of being connected together and a ball universal joint may replace the joint 23, 24, 25. Specification 505,615 is referred to in the second Provisional Specification.
Patent GB-378184-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1931-07-24
Abstract: 378,184. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm.) July 24, 1931, No. 21174. Convention date, July 25, 1930. [Class 29.] Absorption systems.-In continuous cycle inert gas systems the liquefied refrigerant on its way from the condenser 13, Fig. 1, to the evaporator 16 is cooled by direct contact with the inert gas and vapour mixture circulating from the evaporator to the absorber 25. The condensate flows into a vessel 14 and thence by a pipe 15 to the evaporator, while the gas mixture is led from the evaporator by a pipe 19 into the vessel 14 and thence by a pipe 20 to the usual gas heat exchanger 23 and by a further pipe 24 to the absorber. Unevaporated refrigerant may flow out of the evaporator through a small opening 21 and the outflow end of the pipe 20 is formed with a funnel or gutter plate 22. In a modification, Fig. 2, the condensate is led through a pipe 40 directly into the space in the gas heat exchanger 28 traversed by the gas mixture flowing from the evaporator to the absorber.
Patent GB-1474686-A (GB)
Title: Hydraulic valves and hydraulic systems
IPC: F04B49/00
Filed: 1973-05-04
Abstract: 1474686 Valves SPERRY RAND Ltd 3 May 1974 [4 May 1973] 21200/73 Heading F2V [Also in Division G3] A combined compensator and unloading valve for a hydraulic system comprises a hollow plunger 6 controlling by-pass flow between an inlet 4, connected to a pressure line fed by a pump 1, and an outlet 5 connected to reservoir. The end of the plunger in contact with the valve seat is of lesser diameter than the main port in order to provide differential pressure surfaces. In the opposite end of the plunger is a sleeve 7, of cross-sectional area equal to the valve differential area, within which slides a pin 8 one end of which abuts a light spring 14 bearing against the plunger. The other end is loaded by a spring 9. The interior of the plunger is connected, via orifices 13, passageway 12 and a valve 11, with a load pressure sensing line. In operation, when an open-centre control valve 2 is in the neutral position the load pressure sensing line is substantially at reservoir pressure and the plunger valve will open at a pressure set by the light spring 14, for example at 10 p.s.i. When the system is operating the pressure within the hollow plunger is controlled by the compression of the spring 9. At pressures above that set by the spring, for example 300 p.s.i., the valve will open to maintain this maximum. A pilot relief valve 15 may be provided to open when the load pressure exceeds a safe maximum, opening of this valve reducing pressure within the plunger so that the main valve opens to by-pass the pump to reservoir. Should system pressure fall below reservoir pressure, due to an over-running load, the valve 11 will be unseated, the load sensing line isolated, and the reduced pressure at the inlet 4 applied to the interior of the plunger to open it fully to allow fluid to flow from the reservoir to meet the demand.
Patent GB-768155-A (GB)
Title: Shell moulding machine
Inventor: RISPIN MAURICE HANNAN
IPC: B22C23/00
Filed: 1954-07-21
Abstract: 768,155. Moulding-machines. FAIRBAIRN LAWSON COMBE HARBOUR, Ltd. May 16, 1955 [July 21, 1954]. No. 21218/54. Class 83 (1). A shell-moulding machine comprises a heated oven provided with a pair of vertically movable doors, the junction-line of which is adjustable in a vertical direction relative to the position occupied by a pattern prior to its entry into the oven. Doors 4, 5 of the oven 1 are operated by chains 7 passing over pulleys 8 rotated by an air-cylinder 10 on a slide 11 which may be raised or lowered by a handwheel 12 so that the junction-line between the doors may be adjusted relative to the pattern runway 6. A screw 32 may be adjusted to control the degree of opening of the doors. In operation, a pattern and mouldassembly from the oven is placed on a trolley 40, inverted on trunnions 16 so that the mould faces downwards, and an ejector-plate 13 rotated into position over the pattern. Movement of the plate to its operative position causes a table 22 beneath the runway to be lifted by a cylinder 25 and rack-and-pinion mechanism, the ejectorplate is lowered by a handle 38 and the ejected mould falls on to the table 22, whose tap is flexible, e.g. of steel strip or heat-resisting rubber. The pattern is then inverted and, after cleaning, is tilted into engagement with a pivotbar 35 on the dump-box 15, clamped thereto by clamps 27 and the assembly inverted to form another shell. A further runway 36 and ovenassembly may be provided on the opposite side of the dump-box.
Patent GB-718086-A (GB)
Title: Improvements in devices for the control of rate of liquid flow
IPC: G05D7/01
Filed: 1952-08-25
Abstract: 718,086. Valves. GENERAL MOTORS CORPORATION. Aug. 25, 1952 [Sept. 15, 1951], No. 21241/52. Class 135 A valve, e.g. for controlling fuel flow to the burners of a gas turbine in accordance with certain parameters such as compressor inlet temperature and pressure and turbine speed, comprises a housing 10, Fig. 2, forming a chamber 14 receiving liquid under pressure and having one wall formed by a plate 16 having an outlet orifice 18, Fig. 7, controlled by a disc closure member 17 rotatable by a shaft 31 controlled by an instrument sensing the parameters. A narrow projecting boss 20 surrounds the orifice and a straight boss 22 is spaced from boss 20, the disc 17 being urged against the bosses by the difference in pressure on opposite sides thereof due to the liquid, and a light spring 30. The shaft is coupled to the disc by a member 37 having slots 38 engaged by lugs 39 on the disc to thereby permit the disc to seat itself properly. The stem 31 carries a pinion 48 driven through gears 50, 52, a shaft 60, pinion 61 and rack 62 actuated by the instrument. A tension spring 44 takes up backlash in the gear, and also urges the disc in a direction to open the orifice.
Patent GB-405016-A (GB)
Title: Improvements in or relating to devices for distributing artificial light
IPC: F21Y101/00
Filed: 1932-07-27
Abstract: 405,016. Distributing artificial light. DOWNER, G. V., 5, Lansdowne Place, Guilford Street, St. Pancras, London. July 27, 1932, No. 21247. Divided on 404,695. [Class 75 (iv).] A device for distributing light from artificial sources such as electric lamps or incandescent gas mantles, particularly in the form of luminous strips, panels, pillars, artificial windows, skylights or other lay lights, or for flood lighting the exterior of a building, comprises an enclosure having one or more walls formed partly or wholly of translucent material, provided at one end or side with an artificial source of light and reflecting means for projecting a concentrated beam in a direction substantially parallel to the translucent material and traversing substantially the whole of the enclosed space, and fitted with one or more deflectors so arranged as to intercept substantially the whole of the beam and reflect it on to the translucent material and so formed that the rate at which the beam is intercepted at any point in its length will be inversely proportional to the intensity of light at that point whereby the light reflected onto and distributed through the translucent material will be of substantially equal intensity throughout the surface of the material. The translucent material may consist of quartz, opal or frosted glass, or like diffusing material having sufficient reflecting properties to reflect back on to the deflector or deflectors any divergent rays from the light source or from the concentrating reflector which impinge directly on its rear surface. Fig. 1 shows a translucent cylindrical pillar 7 fitted with an electric lamp 1 within a concentrating reflector 2 and with a trumpetshaped deflector 9. The latter may be replaced by a series of frusto-conical or similarly shaped deflectors arranged in stepped or staggered relationship at increasing distances from the light source, the areas of the translucent material illuminated by the different deflectors being contiguous or slightly overlapping. The pillar may be hexagonal or octagonal in crosssection, or a semi-cylindrical translucent wall may be used against an ordinary opaque wall. Fig. 2 shows a translucent strip or panel 11 forming the cover of a trough 10 which is let into a wall and fitted with a deflector 12. The interior of the trough is preferably white and the deflector 12 may be augmented by auxiliary reflectors such as 21. Such a panel may be mounted across the angle between a wall and a ceiling or between two walls, and two or more panels may be illuminated from a single source of light with or without the use of reflectors. Fig. 3 shows an artificial skylight or window 14 of translucent material formed in a false ceiling 13 and used with or without the panel 11. Details of suitable auxiliary reflectors are given in the Specification. The lamps may be coloured, coloured screens may be placed across the open side of the trough, or the translucent material may be coloured or formed as a pattern, design, or picture.
Patent GB-882025-A (GB)
Title: Method of reinforcing rubber articles
IPC: C08J5/06
Filed: 1959-06-22
Abstract: In bonding fibrous polymeric polymethylene terephthalate material, e.g. polyethylene terephthalate, to rubber or rubber substitutes, the material is first coated, e.g. by dipping, spraying or brushing, with two coatings, one of a triallyl cyanurate composition and the other of a vinyl pyridene copolymer latex-resorcinol-formaldehyde dispersion, the triallyl cyanurate being polymerized, preferably before applying the second composition.  The coated material is then contacted with the rubber and bonding effected by heating, applying pressure if necessary.  The first coating composition preferably comprises 10 to 50% by weight of triallyl cyanurate and up to 90% of a vinyl chloride homo- or copolymer and polymerization catalyst, e.g. lauryl peroxide, ascaridole, cumene hydroperoxide, the catalyst comprising 0,1 to 0,75% by weight of the entire composition, and being preferably a mixture of cumene hydroperoxide aluminium chloride and a tertiary amine as described in Specification 877,862.  If desired the coated material may be incorporated in a rubber stock containing a vulcanizing agent which is then vulcanized.
Patent GB-596912-A (GB)
Title: Improvements in t.r. switches of the electron discharge type
IPC: H01J17/04
Filed: 1944-10-31
Abstract: 596,912. Discharge apparatus. AMALGAMATED WIRELESS (AUSTRALASIA), Ltd. Oct. 31, 1944, No. 21299. Convention date, Feb. 9. [Class 39 (i)] In a " T.R. Switch," of the kind comprising a resonant cavity having a filling of ionizable gas or vapour of such kind and pressure that when the resonator is excited by a pulse of radio-frequency energy, an electron discharge is produced in the gas or vapour, the filling consists of iodine vapour. Solid iodine is sublimed on to the inside of the envelope from an appendage to the exhaust tube, which is cooled during exhaustion but heated after the exhaustion process is completed. It provides a pressure range of 0.3-3.0 mms. at normal temperatures.
Patent GB-1492106-A (GB)
Title: Gelatine dessert composition
IPC: A23L29/281
Filed: 1975-05-19
Abstract: 1492106 Ouick setting aqueous dessert compositions GENERAL FOODS CORP 19 May 1975 [10 June 1974] 21349/75 Heading A2B A quick setting gelatin containing dessert is made by dissolving a gelatin dessert composition in hot water, and adding ice, the amount of ice when melted being equal to or less than the amount of low water, both amounts being such that the concentration of gelatin in the dessert is from 1.5-3.0% by wt. Also present in the composition may be a sweetener, an acid, a buffer and an antifoam agent. The gelatin has a Bloom of 100 to 350 grms (AOAC) and is present in an amount of from 9 to 15% by weight of the dessert composition.
Patent GB-674130-A (GB)
Title: Improvements in or relating to proteinaceous compositions
IPC: D21H17/22
Filed: 1949-08-17
Abstract: An adhesive, sizing or coating composition, which is used dispersed in water, comprises an alkali-solubilized protein and a fluid-stabilizing amount of an alkali metal or ammonium salt of dicyanimide.  The protein may be casein or a vegetable protein, e.g. wheat, soya, maize and barley protein.  The amount of protein may be from 5 to 40 per cent of the weight of the dispersion.  The amount of the fluid-stabilizing salt may be from 5 to 30 per cent of the dry weight of protein.
Patent GB-602181-A (GB)
Title: Bread wrapping machines
IPC: B65B11/10
Filed: 1945-08-22
Abstract: 602,181. Packeting by wrapping-up. PETSKEYES, C. H. Aug. 22, 1945, No. 21419. [Class 94(i)] In a machine for side wrapping loaves of bread wherein the paper wrapping web is held on a table by a tensioning member so as to hang down in front of a conveyer so as to be wrapped partially round a loaf passing from the conveyer on to an elevator, which wrapping is completed as the elevator is raised to a position above the level of the table and the loaf is moved laterally on to a delivery table, the holding and tensioning means comprises a rocker shaft carrying the table, a pressure roller extending transversely along an edge of the table, between which and the roller the web is projected, means carried by the table for supporting the roller, and cam means for operating the supporting means relative to the table to move the roller into and out of holding contact with the web. The elevator comprises upper and lower plates 18, 19, Figs. 2, 6, 8 and 10, and in its uppermost position, Figs. 2 and 10, the web 40 is fed under a roller 39 over the plate 19 on to a table 43, being guided horizontally by a plate 35 fixed to the plate 18, and severed by a knife 42. A roller 24 to engage the web and wrapped loaf extends along an edge of the plate 18 and is urged outwardly in elongated slots in its mounting brackets by a roller 28 mounted on a shaft 30 and urged by a spring 33 against the roller 24. The table 43 is rockable, being mounted on a rocker shaft 45. A rotary shaft 50 mounted in bearings carried on the bed-plate 10 of the machine carries a cam 51 engaging a roller 52 journalled in end portions of spaced arms 54 pivoted at 55 in bearings fixed to the table. The arms 54 have enlarged heads with elongated slots 59 in which is mounted the holding and tensioning roller 60. In operation, a loaf B is passed from a conveyer 21 on to the plate 18 across the hanging part of the wrapper, the cam 51 being in a position to allow the roller 60 to rest of its own weight on the web and table. The table is then rocked to the position shown in Fig. 8 and the elevator raised, whereby the arms 54 are released from the cam and by the force of compression springs 62 urge the roller against the web to tension it. When the elevator reaches its uppermost position the table is rocked back to its normal position, the cam rotates to raise the roller 60 off the web, and a pusher 63 delivers the loaf on to the bed-plate 10, while a new portion of web is fed on to the table, the final side fold being made by the web's contacting a roller 63<1> carried on the bed-plate and co-operating with the roller 24. The end folds are made by means of arcuate slots 13 in end-plates 12 supported on the bed-plate.
Patent GB-1002422-A (GB)
Title: Rotary piston internal combustion engines, compressors, pumps and expansion machines
IPC: F01C19/10
Filed: 1962-06-04
Abstract: 1,002,422. Rotary engines and compressors. N.S.U. MOTORENWERKE A.G. and WANKEL G.m.b.H. June 4, 1962, No. 21420/62. Heading FIF. A rotary compressor, pump, fluid motor or internal combustion engine of the Wankel type has, mounted in grooves in the piston lobes, radially slidable sealing strips 8 (Fig. 2) which contact the peripheral wall 3 of the casing and which are cut away at their ends 13 to avoid jamming when they are tilted. The strips are fitted at their ends in cylindrical inserts 9 and gaps 14 between the sealing strips and the end walls 1, 2 are formed. To reduce these gaps the strips 8<SP>1</SP> may be cut away as shown in Fig. 3 with the maximum length along 16, spaced from the casing wall. The cut away portions 13 (Fig. 2) and 13<SP>1</SP> (Fig. 3) must lie inside a circle centred on the longest dimension and passing through its ends. In another embodiment (Fig. 4, not shown) the sealing strips 8<SP>1</SP> of Fig. 3 are reduced in length and a rectangular strip is fitted in each groove at each end of the strip. In a further embodiment (Fig. 5) each sealing strip 17 is formed with arcuate ends 16, the centre of these arcs lying in the centre of the strip. The strip is flanked by pieces 18 having complementary arcuate surfaces 19. Two sealing strips according to the invention may be located side by side in each groove, for example, one strip according to Fig. 2 and the other according to Fig. 3.