baber/WOPTO huggingface dataset:
Patent GB-519424-A (GB)
Title: Improvements in or relating to heat insulating devices for beer casks and other articles
IPC: F25D31/00
Filed: 1938-09-15
Abstract: 519,424. Refrigerators. MURRAY, T. S. S. Sept. 15, 1938, Nos. 26947/38 and 5653/39. [Class 29] A heat-insulated cover for tapped beer casks in cellars &c. is formed by assembling together end walls 3, 4 and side walls 5, 6 with positioning battens 8, and securing them by bolts 9 adapted to rest in notched plates 10 on the end walls, a removable top 7 being placed in position. One end wall 3 is provided with a slot fitted with'a split rubber curtain 16 to embrace the draw-off pipe 15. Cooling coils 22 may be located just below the top uf the cover, which has a small door 14 for access to the bung hole. The cask and cover are mounted on runners 21 on a floor carried by bearers 17 adapted to tilt on a cross rod 18. The walls may be made of material known under the Registered Trade Mark " Celotex," with protective sheet metal covering. Where the cask is mounted on a shop counter,the walls of the cover may be permanently secured together, the top being hinged or removable.
Patent GB-1347359-A (GB)
Title: Apparatus for the manufacture of granulated material
IPC: B30B11/22
Filed: 1971-04-19
Abstract: 1347359 Extrusion granulator H STUDLI 19 April 1971 [22 April 1970] 26954/71 Heading B5A Extrusion orifices 18 at the outlet of which granules of extruded plastic material are cut by a diametrically opposed pair of rotating knives 20, are defined between the open end 19 of an extrusion cylinder 1 and a member 17 which is actuated, by a double acting fluid pressure cylinder 12, to be abuttingly urged against the end 19 during extrusion, with a pressure greater than that of the material within the cylinder 1, and to be urged away from the end 19 after extrusion to facilitate cleaning of the orifices 18. The orifices 18 may be defined by grooves in either or both of the abutting ends of the cylinder 19 and member 17. The plastic material may be extruded by a screw means, or as in the described embodiment by an extrusion piston 4 actuated by a double acting fluid pressure cylinder 6, the greater pressure of the member 17 during extrusion being effected by a larger area surface of the pressure piston 15 of the cylinder 12, than of the piston 5 of the cylinder 6. The cylinders 6, 1, and 12 are bolted together at tie rods 8 and spacers 13, 14. The face of the member 17 located across the open end of cylinder 1 is of conical configuration, and the member 17 is threadedly secured to the rod 16 of pressure piston 15. The blades 20 are rotated around the orifices 18 from an electric motor 28 carried by the rod 16, via belt drives 25 to a support ring 22 which is rotatable, at bearings 23, about the rod 16, and which is threadedly connected to a support ring 21 detachably carrying the blades 20. In the use of the apparatus, the pressure within chamber 12a of cylinder 12 is reduced during retraction of the piston 4, intermediate advancing extrusion strokes thereof, to avoid excessive loading on, and deformation of, the abutting surfaces of the end 19 and member 17.
Patent GB-1078303-A (GB)
Title: Anti-electrostatic finishing of synthetic fibres
Inventor: GUTSCHIK ERNST
IPC: C08G73/02
Filed: 1964-06-30
Abstract: Poly-oxyalkylated polyethylene imines and the salts thereof with inorganic and organic acids and with acid esters are used as antistatic agents for textiles (see Division D1).  The polyethyleneimine starting materials are preferably water-soluble with a molecular weight in the range 1000 to 40,000.  The products preferably contain 3 to 100 alkylene oxide units per nitrogen atom. The examples describe (1)-(3) the ethoxylation, and (4) the propoxylation, of polyethyleneimine in aqueous solution. Uses:-treating textiles.ALSO:Polyoxyalkylation products of polyalkyleneimines are used as antistatic agents on synthetic fibres (as defined).  They may be applied to fibres as such or in the form of salts or esters.  In the Examples, polyacrylonitrile and polyamide fabrics are treated solutions comprising polyoxyethylene- and polyoxypropylenepolyethyleneimines.
Patent GB-242289-A (GB)
Title: Improvements in a view passage for furnaces
IPC: F23M11/04
Filed: 1925-10-28
Abstract: 242,289. Vastine, R. P. Oct. 31, 1924. [Convention date]. Observation devices.-A view passage through the wall of a furnace comprises two casings, one within the other, with means for circulating air between them and past a transparent pane member closing the passage. The passage in the wall 1 is shaped to take an outwardly-flared ribbed casing 2 secured to the wall by members 3 and enclosing the inner casing 4 across which are arranged perforated cast-iron screens 5, the mesh of which is of increasing fineness towards the outer end of the passage. Air enters the space between the casings at 6, is made to take a circuitous path by longitudinal ribs 8, and leaves by a funnel 7. Hinged to the outer casing 2 is a frame 0 currying supporting members 10, 11 for transparent panes 12, 13, between which air circulates, entering at 14 and leaving at 15. Each pane comprises a number of sections arranged side by side. The decrease in radiated heat, due to the shape of the casing and the screens 5, and the decrease in conducted heat due to the air circulation and the ribs on the casing 2, enable glass or similar substance to be used as the transparent medium.
Patent GB-144550-A (GB)
Title: Improvements in locking devices
IPC: E05B67/10
Filed: 1919-11-04
Abstract: 144,550. Bellow, E. A., and Kynoch, Ltd. Nov. 4,1919. Padlocks; fastenings operated by tools. - The sole locking mechanism for a padlock consists of a single metal spring, one end, A, of which, when disengaged, by means of a key, from the groove F in the hasp E, moves in the slot S, the other end B moving in a direction at right-angles to the slot and forcing the hasp open.
Patent GB-653161-A (GB)
Title: Improvements relating to centrifugal pumps for non-homogeneous media
IPC: F04D7/04
Filed: 1948-10-19
Abstract: 653,161. Centrifugal pumps. SULZER FRERES SOC. ANON. Oct. 19, 1948, No. 27140. Convention date, Oct. 25, 1947. '[Class 110(i)] A centrifugal pump for non-homogeneous media, i.e. mixtures of liquid and either or both solids or gases, is provided with means for imparting to the medium in the centripetal field of the impeller a circulation about an axis substantially parallel with the impeller axis, in such a way that the intensity of the circulation increases as the rate of delivery decreases. According to one arrangement, auxiliary blades 7, Figs 3 and 4, are placed between the main impeller blades 12, the leading surfaces 8 being inclined forwards in the direction of rotation. In addition or alternatively, the outer ends of the main blades may be chamfered so as to slope away towards the rear, as at 14, or the leading surfaces 10 may be curved forwards in the direction of rotation in the vicinity of the impeller periphery. In the construction shown in Fig. 1, the impeller has not more than four blades, the axial width of which is greater at the outlet than at the inlet. Preferably. the cross-sectional areas of the impeller channels, measured in a surface normal to the meridional component of the velocity of flow, is at least three times as great at the outlet as at the inlet, and the radial distance of the outlet end of each blade from the impeller axis does not exceed 2.7 times that of the inlet end. A further arrangement, which may be used by itself or in conjunction with any of the other arrangements, comprises stationary guide blades 17 which protude into the impeller eve and are spaced from the impeller hub by only a small clearance.
Patent GB-677234-A (GB)
Title: An improved machine for briquetting powdered metal
IPC: B30B15/30
Filed: 1948-10-20
Abstract: 677,234. Hydraulic machines. HALLER, J. Oct. 20, 1948 [Oct. 20, 1947], No. 27266/48. Class 69 (ii) [Also in Group V] A bush is moulded from powdered metal, e.g. bronze, in a die between upper pressing plungers 29, 31 and lower pressing plungers 24, 26. A core 28 forms the bore of the bush. Movement of a lever 277 of a valve 244, see Fig. 20 (not shown) allows pressure fluid from a pipe 267 to act on a piston 60 to move a feed shoe 47 over the die. When the die is filled with material from the shoe, the lever 277 is moved to a reverse position to retract the shoe. A valve 245 is then actuated to cause a piston 93 and the plunger 29 to move downwards. When the plunger 29 reaches the surface 51 of the die table 18, the valve 245 is moved to a neutral position, holding the plunger 29 in this position. A valve 243 is then actuated to raise the core 28 above the surface 51. This valve is then moved to its neutral position. A valve 241 is actuated to raise a piston 161 and the plunger 26. When the plunger 26 has moved through about half its stroke, see Fig. 14 (not shown), the valve 241 is moved to its neutral position. Valves 245, 246 are then actuated to force the plungers 29, 31 downwards the plunger 31 telescoping with the core 28. The distance these plungers move downwards is adjusted depending upon the dimensions of the bush which are desired. The valve 241 is then actuated to cause the plunger 26 to finally compress the material. The upper plungers are then raised by reversing the valves 245, 246. Valves 242, 241 are actuated to cause the plungers 24, 26 to move upwards simultaneously, and the valve 243 is reversed to lower the core 28. When the plunger 24 reaches the surface 51, the valve 242 is moved to its neutral position, and the plunger 26 is allowed to continue its upward movement to eject the moulded bush. The plungers 24, 26 are then returned to their starting positions. The plungers and core may be moved in different sequences and to different positions from those of the previous operation to form bushes of the forms shown in Figs. 34 and 35 (not shown) by the operations shown in Figs. 21 to 33 (not shown). The distances through which the various plungers move may be controlled by (a) stops, (b) limiting the distance to which the pistons can move in the cylinders or (c) providing scales and pointers on the plungers. The levers of the valves may be moved manually, but, preferably to make the machine fully automatic, they are operated by solenoids which are energised by limit switches operated by arms projecting from the various plungers.
Patent GB-727407-A (GB)
Title: Solid fuel grates
Inventor: WALKER FRANK WALTER
IPC: F23H17/12
Filed: 1952-10-30
Abstract: 727,407. Domestic fireplaces. RADIATION, Ltd. Oct. 23, 1953 [Oct. 30, 1952], No. 27281/52. Addition to 580,799. Class 126. In a fireplace according to Claim 2 of the parent Specification the screen is adapted to serve also as a trivet. ' As shown the screen b is formed at each side near the lower edge with a notch c which co-operate with an overhanging abutment e on the stove front a to support the screen in an inclined position over the fuel, Fig. 3, the backward inclination being limited by the engagement of protuberances f with the inner face. of the hollow front a. When required to serve as a trivet the screen is moved to the horizontal position shown in Fig. 2, the protuberances f then engaging under the abutment e.
Patent GB-1487519-A (GB)
Title: Production of homogeneously doped p-conductive semi-conductor material
IPC: G21G1/12
Filed: 1975-06-27
Abstract: 1487519 Semi-conductor device manufacture SIEMENS AG 27 June 1975 [16 Aug 1974] 27289/75 Heading H1K [Also in Division G6] A substantially uniformly P-doped semiconductor body is made by subjecting a semiconductor body to irradiation with gamma rays of sufficient energy to initiate nuclear reactions resulting in the production of acceptor atoms. The body may be a wafer which is scanned by a beam of γ rays, or a rod, e.g. produced by zone melting of polycrystalline silicon, which is rotated about its axis in such a beam. Irradiation damage can be removed by annealing at > 500‹ C. for at least an hour. Exemplary processes are the doping of Si by the reaction 28 Si(y,p) #27 Al , of Ge by the reaction and of GaAs, GaP, or GaAsP by the reaction Suitable treatment conditions are specified.
Patent GB-273858-A (GB)
Abstract: 273,858. Laughton, H. May 10, 1926. Cleaning, fluidpressure processes for. -A device for removing obstructions in the petrol and other pipes of internal combustion engines by pumping air through them comprises a member a threaded externally at b for connection to a pump, and threaded internally at f to receive the externally threaded end of a connecting nipple of which the other end is threaded internally and externally to fit the threaded terminals of the engine tubes, a one-way valve e being disposed within the members. More than one of the nipples c are provided so that tubes of different size can be cleaned.
Patent GB-930926-A (GB)
Title: Improvements in shopping or like bags
IPC: A45C3/04
Filed: 1961-07-28
Abstract: 930,926. Shopping bags. J. SILVERSTEIN. April 30, 1962 [July 28, 1961], No. 27495/61. Class 133. A plastic or canvas shopping bag comprises a flexible bag portion 1a, 1b, a wooden platform 8 secured at the base and fitted with four rubber castors 10, and handles 4. The bag can be rolled up around the platform 8 and secured thus be a strap 12 wrapped around it and fastened in a catch 13. The bag is reinforced at its open periphery by a strip 3 and at its lower corners by patches 11.
Patent GB-714230-A (GB)
Title: Pyridine compounds and process for the manufacture thereof
IPC: C01G23/047
Filed: 1952-11-03
Abstract: The invention comprises derivatives of isonicotinyl-hydrazine of the general formula <FORM:0714230/IV (b)/1> wherein R1 and R2 are identical or different and stand for alkyl, alkenyl or aryl groups or the radical N(R1)R2 stands for a saturated six-membered heterocyclic ring, and acid addition salts thereof obtained, for example, by treating the free base with acids such as hydrochloric, hydrobromic, nitric, sulphuric, phosphoric, ethanesulphonic and tartaric acid. The compounds are prepared by reacting an isonicotinic acid halide or an acid addition salt thereof, preferably isonicotinic acid chloride hydrochloride, with a substituted hydrazine of the general formula <FORM:0714230/IV (b)/2> preferably in the presence of an acid binding agent or acid acceptor, e.g. pyridine.  The examples describe the preparation of 1-isonicotinyl - 2,2 - dimethyl - hydrazine, 1 - isonicotinyl - 2,2 - diethyl - hydrazine, 1 - isonicotinyl-2,2 - [pentamethylene - (11,51)] - hydrazine, 1-isonicotinyl - 2,2-[31 - oxa - pentamethylene-(11,51)] - hydrazine, 1 - isonicotinyl - 2,2 - diphenyl - hydrazine, 1 - isonicotinyl - 2 - butyl-2 - isopropyl - hydrazine, 1 - isonicotinyl - 2-methyl - 2- isopropyl-hdrazine, 1-isonicotinyl-2 - allyl - 2 - isopropyl - hydrazine, and in most cases the hydrochlorides thereof.
Patent GB-1272476-A (GB)
Title: Temperature measurement device
IPC: G01K13/02
Filed: 1969-05-30
Abstract: 1,272,476. Temperature sensor housing. DYNAMIT NOBEL AG. May 30, 1969 [June 1, 1968], No. 27627/69. Heading G1D. A temperature measuring device comprises a housing 1 having a screw thread or bayonet fitting at one end 2 for engaging an aperture in a vessel wall, Fig.2 (not shown), and an immersion tube consisting of parts 4 and 5 joined by means of an insulating plug 9 formed of a mixture of asbestos and adhesive. A plug 10 of the same mixture forms a seal between tube 5 and housing 1. The immersion tube may be raised and lowered by means of a lockable handwheel 7 engaging the tube part 4 by means of a screw thread or a projection-cam arrangement. The depth of immersion may be indicated and a micrometer screw fine control may be provided. Marks may be provided to indicate the limits of permitted movement. The immersion tube is prevented from rotation by a releasable threaded screw 15 engaging one of a series of longitudinal slots in the tube or by a part of the tube of square crosssection engaging a corresponding part in the housing. The direction in which the hook end of the immersion tube points may be indicated. The temperature sensor 12 may be a semiconductor resistance thermometer bonded, cemented or soldered to the end of tube part 5.
Patent GB-703378-A (GB)
Title: Garden and other rollers
IPC: A01G1/12
Filed: 1951-11-26
Abstract: 703,378. Garden rollers. BAKER, B. H. Nov. 7, 1952 [Nov. 26, 1951], No. 27639/51. Class 6 (1). [Also in Group VIII] A garden roller comprising a hollow cylindrical metal shell b and a concrete core d is provided with a bent metal strip a -secured to the core and adapted 'at its ends to provide bearings for a spindle g attached to handles h. As shown the roller comprises 'two sections and bushes f are inserted in the ends of the strip to form the bearings.
Patent GB-1451172-A (GB)
Title: Mechanical excavating machines process for preparing farnesyl acetic esters and 2-substituted  products teh
IPC: E02F3/38
Filed: 1974-06-21
Abstract: 1451172 Excavators POCLAIN SA 21 June 1974 [5 July 1973] 27657/74 Heading E1F A two part articulated jib 5b of an excavating machine has a chute 23b formed along each of the two parts for discharging material shifted by the bucket 11b. An endless conveyor 16 is positioned under the chute 23b to convey the material to a lorry 22. The endless conveyor 16 may also be disposed transversely to the longitudinal axis of the jib 5b. Two embodiments of the cross-section of the jjb 5b are described (Figs. 5 and 6).
Patent GB-841716-A (GB)
Title: Method of joining carbon bodies
Inventor: WHITE ALBERT EDWARD SUTHERLAND
IPC: C04B37/00
Filed: 1957-09-02
Abstract: 841,716. Soldering. MORGAN CRUCIBLE CO. Ltd. Aug. 22, 1958 [Sept. 2, 1957], No. 27691/57. Class 83 (4). Carbon bodies are joined by causing silicon and/or one or more metal silicides to intervene, under non-oxidizing conditions, between the surfaces to be joined and then cooling the joint. In an example a portion of reduced diameter on a tube of electrographite is inserted in a recess in another tube of electrographite to leave a circumferential groove between the tubes into which a paint made by suspending silicon powder in collodion diluted with acetone is poured. The joint is dried in air to evaporate the solvent and then heated by radio frequency induction in a vacuum to melt the silicon at 1410‹ C. In another example a composition comprising a mixture of molybdenum and silicon powders in collodion and. acetone is applied to two carbon bodies and the coated surfaces in close proximity are heated in a graphite tube resistance furnace in argon to form MoSi 2  at 1200‹ C. and to fuse the compound at 1900- 2100 ‹ C. In one modification the molybdenum in the last example is replaced by chromium and heating is carried out in vacuo so that on cooling the parts are joined by a mixture of chromium disilicide and silicon and in another modification the molybdenum is replaced by zirconium hydride which provides zirconium on heating so that on cooling the parts are joined by a mixture of silicon and zirconium silicide. The silicide may be included in a suspension for application to the parts. The joint may be dipped into a melt of the silicon and/or silicides. The silicide may also be a silicide of a refractory metal such as tungsten, titanium or tantalum. According to the Provisional Specification one or more borides of molybdenum, tungsten, titanium, zirconium, tantalum or chromium may be caused to intervene under non-oxidizing conditions between the surfaces to be joined.
Patent GB-639775-A (GB)
Title: Improved cyclic process for producing dicalcium phosphate by reacting raw phosphate with phosphoric acid
IPC: C05B11/10
Filed: 1946-09-16
Abstract: In a cyclic process for the production of dicalcium phosphate wherein phosphate rock is treated with phosphoric acid and the mixture is heated to precipitate dicalcium phosphate and wherein the mother liquor is used, with fresh phosphoric acid, for treating more rock, the amount of acid added, either free or as monocalcium phosphate, is such as to give in relation to the rock phosphate a molecular ratio P2O5 : CaO in the added material of about 0.5, and the total molecular ratio P2O5 : CaO in the reaction mixture prior to the separation of the dicalcium phosphate is maintained at less than 1.3. The temperature is preferably maintained near the boiling point. Examples of the process are given.
Patent GB-836756-A (GB)
Title: Improvements in or relating to multiplex pulse transmission systems for use in communications installations
IPC: H04J3/20
Filed: 1958-08-29
Abstract: 836,756. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Aug. 29, 1958 [Aug. 29, 1957], No. 27808/58. Glass 40(4). [Also in Group XL (c)] The invention relates to two-way gating arrangements in which subscribers Rs, Rm, Fig. 1, are connected to a common highway T via low-pass filters LPs, LPm, shunt condensers Cs, Cm, inductances Ls, Lm and gates Ks, Km (normally electronic) which are repeatedly closed simultaneously to establish a connection between the subscribers, the duration of closure being equal to half the resonant period of the tuned circuit Cs, Ls, Lm, Cm. In such arrangements energy is normally lost due to the necessity of changing the capacity Cj of the highway, which thus has to be discharged by a gate Kt which is operated between pulses so as to avoid cross-talk between succeeding time channels. The invention consists in providing the highway with additional capacity to bring it up to a value Ct such that Ct/2, Lm, Cm, Fig. 2, form a resonant circuit of frequency equal to 2n times that of the whole circuit. By this means it is ensured that the charge on the highway at the end of the period of closure of the contacts is substantially zero. The invention may also be applied to systems in which a plurality of highways serves a plurality of groups of subscribers additional gate circuits being provided between pairs of highways Fig. 7 (not shown).
Patent GB-629050-A (GB)
Title: Improvements in or relating to circuit-arrangements for the expansion of electrical oscillations
IPC: H03G7/02
Filed: 1947-10-21
Abstract: 629,050. Valve amplifying circuits. PHILIPS ELECTRICAL, Ltd., (formerly PHILIPS LAMPS, Ltd.). Oct. 21, 1947, No. 28145. Convention date, Sept. 13, 1946. Addition to 624,886. [Classes 40 (v) and 40 (vi)] In an expander circuit using a valve with at least two control grids and two screen grids, the signal and a control voltage each being fed to a different control grid, and a common screen circuit including a resistance of such value that the mutual conductance of the valve increases with an increase in the negative control voltage as in the parent Specification, a positive feedback path is provided between the anode and the first control grid. As shown, the input signal is applied to the first grid of a heptode valve 5, and part of the output is rectified at 15, and fed to the second control grid via a filter 19. The screen grids are connected to the H.T. supply through a common resistance 17. Feedback is applied to the first control grid from the anode through blocking condenser and resistance 31. Since the screen grid voltage varies in antiphase with the input on the first control grid due to the provision of resistance 17, the anode voltage is in phase with the input, thus giving positive feedback. In a modification, Fig. 2 (not shown), the control voltage and the input are both applied to the second control grid, and positive feedback from the anode is applied to the first control grid.