baber/WOPTO huggingface dataset:
Patent GB-674232-A (GB)
Title: Manufacture of reinforced concrete
IPC: B28B23/04
Filed: 1949-03-04
Abstract: 674,232. Reinforced concrete. DOWSETT ENGINEERING CONSTRUCTION, Ltd., and BARBER, R. S. V. March 6,' 1950 [March 4, 1949], No.- 5992/49. Class 20(iv). In the manufacture of concrete products such, as beams which contain posttensioned wire reinforcements, the wires are arranged in their correct positions in the moulds and the concrete is poured. The operation may be conducted on the production line principle as described in Specification 572,390, [Group V]. Whilst setting and hardening occurs, the wires are vibrated or drawn to and fro and an electric current is. passed through them. so as to raise the temperature of the concrete immediately surrounding the wires to over 100‹C., thus destroying any bonding which may have occurred, preventing the formation of any further bond, and allowing the wires to be tensioned, which may be done whilst they are hot, and anchored after the concrete has hardened. Specification 602,024, [Group V], also is referred to.
Patent GB-575719-A (GB)
Title: Transformer
IPC: H01F27/26
Filed: 1944-03-31
Abstract: 575,719. Transformers. STANDARD TELEPHONES & CABLES, Ltd. March 31, 1944, No. 6004. Convention date, April 10, 1943. [Class 38 (ii)] A transformer coil has spacing members 21 arranged between adjacent winding layers so as to provide an open-ended cooling air duct 20 and the winding is subjected to a tension of, say, 700 lbs. which prevents it vibrating under the stress of high currents. The Figure shows a three-phase step-down transformer each phase of which has a primary winding with five layers 16 surrounded by a secondary winding with nine layers 18. 'The primary winding is of rectangular copper wire which may be covered with glass fabric and successive layers are separated from each other either by insulating strips or by the air ducts where these occur. The secondary winding is formed of a strip of extremely thin copper of, say 2#" width, tensioned as stated above. The air ducts 20 occur at two opposite sides only of the winding. The core of the transformer is formed from two E-shaped members held together by a metal clamping band 10 extending round the two members and outside this are four brackets 12 held in place by a further clamping band 13. The brackets 12 have lugs 12a whereby they are secured to an enclosing casing 26 and air is forced through the housing either by connecting the latter to the air stream outside of an aircraft or by a fan or blower. The velocity of the air stream is preferably such that it is turbulent and a velocity of 750 ft. per minute has been found suitable for a current of 390 amperes in the secondary.
Patent GB-833839-A (GB)
Title: Separation of linear polyethylene
Filed: 1958-02-26
Abstract: High molecular weight linear polymers or copolymers of ethylene are separated from low molecular weight polymer fractions by dissolving a mixture thereof in a solvent, heating the resulting solution to a temperature above the melting-point of the polymer under sufficient pressure to maintain the density of the solvent vapour or liquid solvent in the polymer solvent phase above the precipitation density of the solvent, reducing the pressure to cause the density of the solvent in the vapour or polymer-solvent liquid phase to drop to below precipitation density and removing as separate streams, molten high molecular-weight polymer and a solvent-low molecular weight polymer phase.  The solution of polymers is preferably heated to above the critical temperature of the solvent whilst the pressure is reduced to cause the density of the solvent to drop below the precipitation density.  Solvents specified are saturated aliphatic, cycloaliphatic and aromatic hydrocarbons, e.g. cyclohexane.
Patent GB-557293-A (GB)
Title: Cable tension controller
IPC: B64C13/30
Filed: 1942-05-07
Abstract: 557,293. Tension compensators for cables. DEHN, F. B. (Sturgess, Inc.). May 7, 1942, No. 6164. [Class 45] [Also in Group XXX] A tension controlling device for cables &c. more particularly the operating cables of aircraft, comprises means whereby change of length of the cables or of their support due to temperature alterations, or slackness due to pulley wear &c. is automatically allowed for, while permitting full operating tension to take place by temporarily automatically cutting out this adjusting mechanism. The means employed consists of a spring compensation combined with an interleaved clutch which is made effective as soon as an excess pull is imparted to a cable. Two cables 25, 26 are shown connected at 22 to links 20 pivoted at their other ends, at 21, to a lever 18 rockable at 19 about lugs 7<SP>1</SP> projecting from a yoke 7. Through the yoke 7 passes a rod 11 on each outer end of which are threaded a plurality of thin, smooth, metal strips 12 spaced apart by washers 13. These strips are interleaved between similar strips 14 spaced apart by washers and fixed by bolts 15 to upper and lower main frame members 1 channelled on their inner faces to accommodate the strips 12, 14. Cross-beams 2 are bolted to the members 1 and bear through discs 34 against springs 32 mounted on tubes 33. The other ends of the springs 32 react against cross-beams 8 carried by the yoke 7, so that when the device is anchored by bolts 41 the yoke 7 with all its attached parts can slide till the pressure of the springs 32 equals the tension in the cables 25, 26, the strips 12, 14 sliding over one another freely during this slight adjustment. When, however, a sharp pull is imparted to one or the other of the cables 25, 26 the lever 18 is tilted and relative displacement of the upper and lower links 20 occurs. This causes pins or rollers 28 seated in half round sockets to be forced by diamond shaped plates 29 and so move jaw plates 27, located between the links 20, to press against the interleaved strips 12, 14 and lock them together frictionally. A pointer carried by a member 48 projects through a slot in the outer covering of the device to indicate the compression of the springs 32.
Patent GB-1349338-A (GB)
Title: Dishwashing machine
IPC: A47L15/42
Filed: 1973-02-08
Abstract: 1349338 Dish washing machine G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 8 Feb 1973 [19 Feb 1972] 6226/73 Heading A4F A dish washing machine is provided with a single opening 6 into the washing chamber of the machine, the opening 6 having a dual purpose, being an entry for water via supply connection point 7, passage 4 and opening 5, and a venting exit for steam which may condense in the inverted U tube, which is open to the atmosphere at exit 3, and then readmitted to the chamber. Overflow outlets 9, 11 are provided below the level of the supply connection 7, thereby allowing dirty water, in the event of a blockage, to escape via outlets 9, 11 without contaminating the water supply. The venting body may be provided with an offset portion 15, which facilitates condensation, and the body may be of one piece and compact in structure to enable it to be situated adjacent the chamber. wall.
Patent GB-491786-A (GB)
Title: Improvements appertaining to the suspension of electric, gas or other lamps in inaccessible positions
IPC: F21V21/38
Filed: 1937-03-03
Abstract: 491,786. Sustaining load at limit of wind. SLINGSBY & CO., Ltd., W., SLINGSBY, W., SLINGSBY, W. N., and SLINGSBY, T. J. L. March 3, 1937, No. 6276. [Class 78 (v)] In supporting apparatus for lamps of the kind in which the lamp carrier 5 is supported by a hook 2 when in the raised position, Fig. 1, and the hook is moved horizontally out of the path of the carrier when the carrier is raised slightly preparatory to lowering by contact of the carrier with a pivoted member 3, the latter is formed with a projecting arm 3c which is engaged by the carrier 5 during lowering, Fig. 2, to disengage the end 3b of the member 3 from the stop 7. Specification 409,271 is referred to.
Patent GB-1456268-A (GB)
Title: Producing continuous tubes of silica
IPC: C03B23/04
Filed: 1974-02-12
Abstract: 1456268 Silica tube manufacture QUARTZ & SILICE 12 Feb 1974 [8 March 1973] 06279/74 Heading C1M A silica tube is heated and externally coated with fused silica grains and is stretched and subjected to internal pressure whereby a tube of desired dimensions is produced. The coating, stretching and pressurization may be effected simultaneously and may be repeated at a series of stations down a production line. The heating may be by means of a plasma torch or gas burners, the pressure may be obtained by inflating the tube internally or applying a vacuum externally. Prior to treatment a preformed tube may be joined to the tube already undergoing treatment. In Fig. 3 pressure is developed in the heated tube 2 by gas blown in through plug 20a and clack valve 22a and retained by plug 20 and valve 22, the plugs being held in place by the magnetic fields from coils 21a and 21. In Fig. 8 the preform is joined to the tube at station 50, the tube is coated and inflated by external vacuum at station 52 and again at station 54 with no deposition with stretching at stations 53 and 55. Means for transporting the tube and rotating it during treatment are disclosed.
Patent GB-252805-A (GB)
Title: A new or improved change speed gear
IPC: F16H3/22
Filed: 1925-03-07
Abstract: 252,805. Armstrong, A. R. March 7, 1925. Variable-speed gearing of the sliding-gear type is modified to facilitate the engagement of the gears and to secure a resilient transmission. The speed is changed by sliding a screw spring device carrying a plurality of gears h, i adapted to mesh with gears such as e fast on a countershaft a constantly driven from a shaft b. The device comprises outer and inner sleeves g, n screwing together and separated by a spring p. The sleeve g carries the gears h, i and may carry a dog clutch member j for direct driving from a like member s on the shaft b. The sleeve n is splined on the driven shaft f. When the combined device is slid to engage, say, the pair h, e, the sleeve g is held against axial movement by the striking-means, and the sleeve n screws along until stopped by the thrust in the spring. Gradual pick up of the drive and resilient transmission result. The action is the same when the clutch teeth pick up. The unscrewing action when the device is disengaged may be facilitated by restrained revoluble gears r at positions intermediate of the gear positions. Alternatively, the combined device may be adapted to slide on the countershaft.
Patent GB-608801-A (GB)
Title: Improvements in the production of anchors
IPC: B21K1/74
Filed: 1946-03-01
Abstract: 608,801. Making anchors. HINGLEY & SONS, Ltd., N., and PERKINS, J. March 1, 1946, No: 6352. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIII] Uniting by fusion.-An anchor of the Trotman type has its cross-piece 1 slotted at each end to form bifurcations into which are threaded cranked palms 2 which are welded in position.
Patent GB-358848-A (GB)
Title: Improvements in wrapping machines
IPC: B65B11/04
Filed: 1931-03-02
Abstract: 358,848. Wrapping machines. DANIELS, T., 72, Poststrasse, Weveling- hoven, Germany. March 2, 1931, No. 6480. Convention date, April 19, 1930. [Class 94 (i).] In a machine for wrapping a number of tablets arranged side-by-side to form a column, the tablets arrive through channels a and form a column which is received in co-operating recesses b in rollers c rotating at the same peripheral speed in opposite directions. Spring-pressed members h bear on the ends of the column until it arrives, in position over a recess d in a drum f. At this point, the column is released and falls upon rollers z in the recess, carrying with it a wrapper g. Some of the rollers may have an elastic endless band arranged round them to prevent the forward end of the wrapper from being entangled. The drum f revolves, bringing the column into contact with a resilient surface n ; the column is thereby rotated and wraps itself in the wrapper. The overlapping edges are turned down by folders o and the packet falls out of the machine on arrival at the lowermost position.
Patent GB-1029713-A (GB)
Title: Process for the polymerisation of olefins
IPC: C08F10/00
Filed: 1964-02-17
Abstract: One or more olefines are polymerized in the presence of a Friedel-Crafts catalyst together with a reducing metal, the process being carried out in two stages:-(1) preopolymerization in contact with catalyst alone or mixed with an inert diluent in an amount of up to 10 times the weight of the catalyst, until the weight of the prepolymer is in the range from 2 to 10 times the weight of the catalyst and (2) final polymerization after the addition of the inert diluent or the remaining portion thereof to the prepolymerization product.  The term "Friedel-Crafts catalyst" means the halide of a metal or of boron, having an acidic character, and particularly AlCl3, TiCl3 and BF4.  The inert diluent may be an aliphatic, cyclic or aromatic hydrocarbon or liquid polyethylene. The preferred catalyst is a mixture of anhydrous aluminium trichloride, powdered aluminium and titanium trichloride.  The prepolymerization is preferably carried out between 120 DEG  and 170 DEG  C. under a pressure of 40 to 80 kg./cm.2, and the final polymerization, which may be in the same or a different reaction vessel, between 70 DEG and 120 DEG  C. and under a pressure of 20 to 40 kg./cm.2.  In the examples ethylene and propylene homo- and copolymers with each other are prepared.
Patent GB-894999-A (GB)
Title: Improvements relating to joint-forming fittings for pipes
Inventor: SKINNER EDWARD JUDGE
IPC: F16L19/14
Filed: 1960-02-25
Abstract: 894,999. Pipe joints. WEDNESBURY TUBE CO. Ltd. Feb. 15, 1961 [Feb. 25, 1960; March 25, 1960], Nos. 6596/60 and 10573/60. Class 99(1). In a pipe-jointing fitting comprising a body parts 1, 12, the part 12 being adapted at one end thereof to be disposed in overlapping co-axial association with the pipe-receiving entry portion 5 of the part 1, there being complementary formations, e.g. screw-threads 11, 16 on the parts to draw the parts into the overlapping association thereof, and a compression member 17 formed at the extremity of one of the parts and engaged by an abutment within the other part so that the member 17 is radially deformed into gripping engagement with the exterior of a pipe extending through both parts, the degree of hardness of the member 17 is less than the degree of hardness of the adjacent part of the body of which the member is an integral portion. As shown, the conical member 17 forms part of the body part 12 and is connected to the latter by a local weakened portion 19 but may alternatively, be integral with the body part 1. The parts 1, 12 may be of metal, preferably a non- ferrous metal such as copper and brass, or of non-metallic material or of a material comprising metallic and non-metallic components. Instead of screw-threads, there may be a cam face on one body part arranged to co-act with a cam face on the other body part to produce the relative axial displacement of the parts and to apply the requisite force to the member 17.
Patent GB-1527317-A (GB)
Title: Data processing apparatus
IPC: G06F15/177
Filed: 1977-04-27
Abstract: 1527317 Data processing INTERNATIONAL BUSINESS MACHINES CORP 27 April 1977 [3 May 1976] 6609/78 Divided out of 1527316 Heading G4A The description is similar to that of Specification 1,527,316 from which this application is divided but the claims are directed to the feature whereby an instruction may access a read-only mini mask register to read out (1) information for the operation register of the ALU and (2) one of the operands.
Patent GB-1079533-A (GB)
Title: Heat exchangers
Inventor: POTTER DAVID STUART
IPC: F28D1/03
Filed: 1965-02-16
Abstract: 1,079,533. Plate-type heat exchangers; refrigerating; heat storing apparatus. J. SAMUEL WHITE & CO. Ltd. Feb. 16, 1966 [Feb. 16, 1965], No. 6648/65. Headings F4H, F4S and F4U. A heat exchanger comprises at least three plate-assembly units, each unit comprising two plates, at least one of which is corrugated or dimpled, the plates being secured together, e.g. by welding, to form between them passages or chambers. The units may serve as storage reservoirs for heat or cold or a flowing fluid may pass therethrough. In the form shown, three such units are assembled together; the central unit 1 comprises two corrugated plates 5, 6 which touch at corresponding crests and are welded together there, and outer units 2, 3 each comprise one corrugated plate 8 and one substantially flat plate 9, which plates are welded together at their points of contact 10. The corrugated plates 8 are brought into close contact with the adjacent plates of the central unit 1, crests of one fitting into troughs of the other, contact being improved by the use of cement of other heat-conducting substance, this cement also being used to fill the space 15 between the edges of the units. The flat plates 9 may be replaced by corrugated plates and further units assembled in like manner (not shown). The passages 7, 11 formed in the units 1, 2, 3 may be sinuous (Figs. 1, 4), access to the passages being afforded by inlet and outlet passages (16, 17, 18, 19) communicating directly with the passages (7, 11) or may be parallel (20, Fig. 8) and connected at their ends to vertical passages (21, 29) to which the corresponding inlet and outlet passages (22, 23, 25, 26) communicate.
Patent GB-323418-A (GB)
Title: Improvements relating to light reflecting devices for advertisement and like services
IPC: G09F13/14
Filed: 1929-03-01
Abstract: 323,418. Macnab, J., and 24 Hour Signs, Ltd. March 1, 1929. Reflex lights.- Light-reflecting lenses d are secured in position by metal cases a in which the lens or a metal sheath . e thereon is a push fit. The case may be secured to the supporting member c by a screw (see Fig. 1), bolt, peg, rivet, or sucker (see Fig. 13). The case may also be in a recess in the supporting member and either projects through, being flanged over to keep it in place, or it may be retained by the friction of a beaded edge as shown in Fig. 8. In the form shown in Fig. 12 the case abuts on one side of the supporting member and is thrust through into another case that abuts on the other side. Specification 263,414 is referred to.
Patent GB-647438-A (GB)
Title: Improvements relating to on-load tap changers for electric transformers
IPC: H01H9/00
Filed: 1948-03-03
Abstract: 647,438. Transformers. FOWLER, J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 3, 1948, No. 6688. [Class 38 (ii)] A diverter switch D for an on-load tap changer X, Y is provided with two groups of main and auxiliary contacts M1, M2, A1, A2, respectively, the auxiliary contacts opening before and closing after the main contacts open and close, each group comprising two fixed contacts, all of which are insulated from one another, and two moving contacts, each auxiliary moving contact being connected to its associated main oontact and each pair is insulated from the other. The contact groups are arranged so that for resistance transition, the fixed contacts M1, A1 and M2, A2 are shunted by resistances R1, R2 and the moving contacts are directly connected together. For reactance transition the fixed contacts M1, A1 and M2, A2 are directly connected while each group of moving contacts is connected to the other by a centre-tapped reactor C. Preferably the moving contacts are operated by the mechanism described in Specification 596,738.
Patent GB-254234-A (GB)
Title: Improvements relating to the adjustment of the bearings of rollers of tin plate dusting machines
IPC: C23C2/40
Filed: 1926-03-11
Abstract: 254,234. Rees, D. J., and Cole, J. H. March 11, 1926. Cleaning. - In a tin plate dusting machine, each roll bearing f, in the inner end of a guide slot h in the machine side frame, is ad justed towards the fixed roll bearing d in the outer end of the slot h, by a nut l screwed on a stem j extending through a groove k in the guide slot h, the stem ; being formed on a plate i having a guide lug o and a support. ing spring g for the bearing f.
Patent GB-117893-A (GB)
Title: Improvements relating to Fenders or Curbs.
IPC: E06B9/01
Filed: 1918-04-24
Abstract: 117,893. Hooper, Ltd., E. A. J., and Wiggett, E. N. April 24, 1918. Fenders and curbs.-The corner caps d and like parts of a fender or curb with a rail a are made integrally with the uprights c which carry the rail. In the fender shown in Fig. 1, the ends of the rails a are let into reoesses b<1> in the heads of the supports c; the heads may, however, be constructed so as to carry curved rails. The middle and ends of the rail are supported by similar parts, each consisting of a cap or cover for the moulding e and an upright c integral with it. The uprights c may be continued upwards to form pillars for utensil-supports or supports for the dog-end rails.
Patent GB-873899-A (GB)
Title: Improvements in and relating to the control of mechanical feeding means
Inventor: PROWSE DONALD WINDSOR
IPC: B65G47/00
Filed: 1957-03-01
Abstract: 873,899. Automatic feed-rate control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 15, 1958 [March 1, 1957], No. 6947/57. Class 38 (4). The feed rate of powder from a hopper 1 to a vat V is controlled by continuously sensing at 8 the weight of material on an endless conveyer 5, and correspondingly varying the core position of a reactor 10 in an A.C. circuit feeding the control winding 12 of amplidyne generator 14. The output of the amplidyne drives a reversible motor 15 which adjusts the position of a shutter 4 to keep the mass flow rate from the hopper constant. In a modification the shutter 4 is dispensed with and the hopper has a lower opening spaced above a horizontal turntable which receives the powder and feeds it to the conveyer 5, the motor 15 moving the hopper vertically to adjust the gap between them and hence the feed rate. Instead of the amplidyne 14 a magnetic amplifier may be used. Specifications 822,743, 824,788 and 867,865 are referred to.
Patent GB-290155-A (GB)
Title: Improvements in or relating to pressure liquid controlling means for valves
IPC: F01L9/11
Filed: 1928-03-06
Abstract: 290,155. Waggon-und Maschinenbau Akt.-Ges. G÷rlitz. May 7, 1927, [Convention date]. Valves actuated by auxiliary pumps. - A valve-actuating device of the kind comprising a valve operating plunger actuated by liquid pressure derived from an auxiliary pump has the pump of larger capacity than the displacement of the operating plunger so that excess liquid together with any entrained air bubbles is discharged from the highest point of the system at each stroke of the valve. The Figure shows the application of the invention to an internal-combustion engine valve gear. The pump plunger d is actuated by a cam a and forces lubricating oil admitted through a pipe m connected to the pressure pipe of the lubricating system through a pipe f connected to a chamber g containing the valve actuating plunger h. Excess liquid is discharged through a valve n and is led by a pipe p to lubricating points. The difference in capacity between the two chambers may be obtained by giving a different stroke to the two plungers or they may have the same stroke and different diameters or both strokes and diameters may be different.