baber/WOPTO huggingface dataset:
Patent GB-1462120-A (GB)
Title: Welding apparatus
IPC: B23K37/04
Filed: 1974-04-09
Abstract: 1462120 Welding arcuate components GIRLING Ltd 7 April 1975 [9 April 1974 22 Nov 1974] 15724/74 and 50675/74 Heading B3R Welding apparatus for welding arcuate components such as a platform and web of a brake shoe comprises web clamping means 27 mounted on a rotatable support structure 3 which is located in a stationary mounting 11 and extends from one side thereof, the web clamping means being in the form of independently operable displaceable jaw parts 27A, 27B which co-operate with fixed part 23 to grip and release the web W, the movable jaw actuating means being on the same side of the apparatus as the fixed part 23. The jaw part 27A is actuated to grip the web to facilitate welding of the platform to the web e.g. at predetermined points, during rotation of the support structure 3 whilst the jaw part 27B releases a previously welded brake shoe for further operations. The welding electrode 6 is located over the jaws 27A and the platform P of the brake shoe is adapted to be fed between the jaws and the electrode. The movable jaws are actuated by fluid pressure pistons 33, and 33A respectively which operate plungers 28, 28A which are controlled in relation to the welding requirements being carried out. The drive means to rotate the support structure 3 with the jaw assembly 27 is effected at the opposite end of the structure to the jaws and is in the form of a pulley 39 and belt 41. The apparatus is adapted to permit the flow of electric current between the electrode 6 and the shoe when held in the clamping jaws 27. In an alternative embodiment the jaw operation is effected by fluid pressure means located at the end of the structure 11 distant from the jaws and the action is transmitted by articulated rods 54, 58, which act on slide members 52, 52A for actuating the respective displaceable jaws of the pairs 27, 27A. The electrode 6 is in the form of a roller rotatable about an axis parallel with the axis of rotation jaws and support structure. A mercury bath is provided in the gap 18 between the movable and stationary parts of the structure to permit conduction of the electric current.
Patent GB-489886-A (GB)
Title: Improvements in sectional moulds for concrete and like structures
IPC: E04G11/36
Filed: 1937-06-08
Abstract: 489,886. Shuttering - arrangements for concrete buildings. LUCHTERHAND, O., and LUCHTERHAND, H. June 8, 1937, No. 15796. [Class 20 (ii)] For use in casting concrete buildings in situ, a shuttering-arrangement of the type described in Specification 195,115, [Class 20 (ii)], is used comprising two sets of beams arranged cross-wise to form a self-contained skeleton framework, and thin flanged panel plates, stiffened on their backs, are arranged to be supported by the framework, and the inner framework members are arranged to bear upon the joints of the panels running in one direction while the panel stiffeners are arranged parallel to the other panel edges. As shown in Fig. 2, the skeleton framework comprises outer supports a and inner supports b, the inner supports being attached to the abutting flanged edges of the panels d, d<1> by bolts e, the edges of the panels being also bolted together. The panels are stiffened by stiffeners k disposed on their backs in a direction parallel to the edges of the panels, which are not coincident with the inner frame supports. For conduit casting, as shown in Figs. 4 and 5, the outer supports a and the panel stiffeners k, rim longitudinally of the conduit while the inner supports b are coincident with the curved panel edges. For curved walls, as shown in Fig. 8, wedges m are interposed between the outer and inner framework members a and b, respectively, the inner framework members being coincident with the joined panel edges running in one direction. The wedges may be replaced by screws and nuts or, alternatively, curved chocks may be inserted between the panel edges and the inner framework members. For silo and chimney construction opposed arrangements of shuttering as described with reference to Figs. 4 and 5 are used and connected by spacers. Specifications 5046/13 and 255,627, [both in Class 20 (ii)], also are referred to.
Patent GB-498516-A (GB)
Title: Improvements relating to combined mechanical and fluid operated controlling means
IPC: B64C13/00
Filed: 1937-06-08
Abstract: 498,516. Operating-mechanism for aircraft parts. DOWTY, G. H. June 8, 1937, No. 15880. [Class 4] Control means for angularly movable aircraft parts, e.g. wing flaps, and bomb doors, comprise a tension member borne to resist loads transverse to itself and guided for longitudinal movement, fluid-operated jacks being connected to the tension member near its ends, each jack being adapted to pull the member, and link means connecting the member'with the part. As shown, the tension-member is formed of elements 12, 13 connected by ball-joints. The elements 12 are guided in brackets 20 and carry collars 11 which may be free to turn on the elements. The collars are connected by links 10 to horns or frames 9 pivoted on the flap 4. The frames 9 may be inclined and stayed or strutted sideways.
Patent GB-596640-A (GB)
Title: Improvements in or relating to the manufacture of quinoxaline compounds
Filed: 1944-08-21
Abstract: 2 - Amino - 3 - carboxyquinoxaline and its ammonium salt, and 2-aminoquinoxaline, are manufactured by treating alloxazine with concentrated aqueous ammonia, preferably at elevated temperature (e.g. about 125-190 DEG  C.) and under pressure, and, if desired, acidifying the product and decarboxylating the liberated acid by heating with a solvent, e.g. to about 190-200 DEG  C.  In an example, crude alloxazine is heated to 165 DEG  C. with concentrated aqueous ammonia in a steel bomb and the product is acidified with hydrochloric acid to liberate 2-amino-3-carboxyquinoxaline, which is then refluxed with nitrobenzene to produce 2-aminoquinoxaline. Other solvents specified for use in the decarboxylation are dibutyl phthalate and sulphuric acid.  The Specification as open to inspection under Sect. 91 comprises also the use of other weak alkalies, instead of ammonia, to produce the corresponding salts of 2 - amino - 3 - carboxy - quinoxaline.  This subject-matter does not appear in the Specification as accepted.
Patent GB-825680-A (GB)
Title: Graft polymers and method of making the same
Filed: 1957-05-20
Abstract: Graft polymers are made by contacting a polymer containing at least one unsaturated double bond between adjacent carbon atoms, and in dry, solid particulate form, with ozone and then contacting the ozonized polymer with a grafting ethylenically unsaturated monomer capable of being polymerized by free radicals.  Suitable base polymers are polyethylene, polypropylene, polybutadiene, polyisoprene, butadiene-styrene copolymers, polystyrene polyhalostyrenes, polyvinyltoluene, polyvinyl naphthalene, polyvinyl cyclohexane, divinyl benzene, polyvinyl indene, polyacrylates, polymethacrylates, polyacrylonitrile, polyvinyl chloride, vinyl and allyl siloxanes, polyamides, unsaturated polyesters and unsaturated fatty acid modified glycerol-phthalic acid polyesters.  Grafting monomers specified are styrene, vinyl toluene, vinyl xylene, divinyl benzene, alphamethyl styrene, chlorostyrene, dichlorostyrene, tert.-butyl styrene, ethylene, butadiene, isoprene, vinyl halides, ethers, esters, ketones and amides, vinylidene chloride, vinyl pyrrolidone, ethyl and butyl acrylates, methyl methacrylate, acrylonitrile and methacrylonitrile.  Prior to ozonization the unsaturation of the base polymer may be increased by milling or by exposure to ionizing radiations such as X-rays, gamma rays, neutrons or accelerated electrons.  In preferred processes the base polymer is in the form of a film or fibre.
Patent GB-568655-A (GB)
Title: A machine for trimming the ends of gear wheel teeth
IPC: B23F19/10
Filed: 1943-09-29
Abstract: 568,655. Gear-cutting. LUCAS, Ltd., J., SWIFT, W., and WILKINSON, J. Sept. 29, 1943, No. 15998. [Class 83 (iii)] In a machine for rounding the ends of gear teeth, such as the teeth of starter pinions for motor vehicles, two coaxial spindles are provided, one carrying the work and the other carrying a multitoothed annular cutter, a combined reciprocating and oscillating motion being given to one spindle to generate the required shape on the teeth and a progressive axial feed movement being given to the other spindle, with a periodic oscillation of the latter spindle to clear the cutter during the withdrawal reciprocations. The cutter head c with an annular series of teeth d is carried by a spindle b mounted in bearings g on a frame a. The spindle is oscillated by an eccentric p or a cam or crank on a rotary shaft o, the axial reciprocations being given to this spindle by interengaging cam surfaces k on sleeves i, j whereof i 'is attached to a fixed member h whilst j is keyed to the spindle. A helical spring m acting between the member h and a collar n on the spindle maintains the cam surfaces in contact and gives the return movements, or the cams and spring may be replaced by a quick-pitch screw. The work e is gripped on a collet s operated by a hand wheel t and carried by a spindle r mounted on a slide u which is moved progressively towards the tool head during cutting, by a screw w &c. A cam x is carried by a hollow shaft y rotatable on the slide u and having a splined connection with the rotary shaft o so that the work may be oscillated periodically through a lever z on the spindle r to disengage the work from the cutters during the. return reciprocation of the latter. A spring maintains a roller on the lever z in contact with the cam x and an adjustable stop 4 on the slide u serves to prevent the lever from leaving the cam. The work may be carried by the spindle b and the cutter head by the spindle r and two arms may be provided on the latter, co-operating with two cams on the shaft y.
Patent GB-362330-A (GB)
Title: Improvements in or relating to embossing tools
IPC: B21D22/04
Filed: 1931-06-02
Abstract: 362,330. Pliers. MANUFAX, Ltd., 38, Felsham Road, Putney, and LING WOOD, F. D., 70, The Lawn, Shepherd's Bush, both in London. June 2, 1931, No. 16088. [Class 61 (ii).] A tool I f o embossing simultaneously several superimposed layers of metal for connecting two members without perforating them comprises two jaws A, B, pivoted together at C. The jaw A has a cylindrical recess A1 while the jaw B carries a pin E<1> of conical form with a rounded end. The pin E<1> may be formed integral with a screw-threaded base E which engages a screwthreaded bore B<1> so' permitting adjustment, or the pin may be formed integral with a conical base G lying in a similarly shaped slot B<3>. The end of the pin has a diameter less than the diameter of the mouth of the recess and lies just within it when the jaws are closed thus embossing the material F, F<1>, F2, F4. The relative dimensions of the end of the pin and the mouth of the recess are such that the sheets are not punched, and the minimum distance between any point on the pin and the nearest point of the wall of the recess being at least as great as the total thickness of metal, there is no shearing.
Patent GB-807069-A (GB)
Title: Improvements relating to electron discharge devices
IPC: H01J21/36
Filed: 1955-06-06
Abstract: 807,069. Thermionic valves. GENERAL ELECTRIC CO. June 6, 1955 [June 9, 1954], No. 16206/55. Class 39(1). The envelope includes a translucent ceramic member 17 through which the glow of the cathode heater 13 is visible and a getter 18 is mounted close to the member so that vapour from the getter can be deposited on the member and partly or wholly obscures the glow of the heater; thus the diminution or dissappearance of the heater glow gives an indication of the time of getter firing. The translucent ceramic may by Mgz SiO 4  of thickness 0À08 inches. The other ceramic insulating wall parts 4, 5 may also be translucent to determine whether all the getter material has been driven off from them.
Patent GB-957292-A (GB)
Title: A method of forming an etched and coloured pattern
Inventor: NAGAI AKIO
IPC: B44C1/22
Filed: 1963-04-24
Abstract: 957,292. Ornamenting; etching. IWATANI SANGYO KABUSHIKI KAISHA. April 24, 1963, No. 16216/63. Drawings to Specification. Headings B6G and B6J. A method of forming an etched and coloured pattern comprises applying through a mesh to part of a workpiece (e.g. metal plate) an etching resist containing for example synthetic resin or asphalt etching with furic chloride dissolved in hydrochloric acid, covering the workpiece with a film of coloured paint or lacquer, and washing away the resist, thereby carrying away the paint or lacquer thereon, with thinners, leaving the coloured film in the etched part of the workpiece.
Patent GB-370252-A (GB)
Title: Improvements in and relating to the conduct of the crotonaldehyde condensation
IPC: C07C45/66
Filed: 1931-06-04
Abstract: Crotonaldehyde is manufactured by the action of heat on an aqueous solution of acetaldol which contains an amount of water at least equal to the weight of aldol (preferably not less than three times the weight of the aldol) and which is not acid to Bromphenol Blue and not alkaline to Bromthymol Blue.  The process may be carried out in the presence of neutral inorganic salts, and may thus advantageously be combined with the manufacture of aldol by the process of Specification 352,056.  The crotonization may be effected in a continuous or semicontinuous manner, and is preferably conducted in the absence of air, the product being collected in the absence of oxidizing conditions, e.g. in the presence of a non-oxidizing gas such as hydrogen or nitrogen.  In examples: (1) the primary product of example (2) of Specification 352,056, containing unchanged acetaldehyde, aldol, neutral sodium sulphate, and sodium carbonate is dissolved in water containing sulphuric acid and the solution is treated first in apparatus for removing the acetaldehyde and then in a crotonizing still from which a mixture of water and crotonaldehyde is distilled off, separated from unchanged aldol in a fractionating column and from excess steam in a second column, the azeotrope of crotonaldehyde and water being condensed; aldol solution freed from acetaldehyde is added at the same rate as the product distils; (2) a neutral aqueous solution obtained by the process of Specification 352,056, containing aldol, acetaldehyde and sodium sulphate is treated to remove acetaldehyde and then run into a cold crotonizing still, which is then heated, the azeotrope of crotonaldehyde and water being distilled off and condensed in an atmosphere of hydrogen and fresh aldol solution added at the same rate; (3) pure aldol is dissolved in water and heated in a still with a fractionating column whereby the azeotrope of crotonaldehyde and water distils and is condensed in an atmosphere of nitrogen; (4) a solution of aldol in water, neutralized if necessary, is heated in a vessel with two fractionating columns, the azeotrope of crotonaldehyde and steam distilling through the second column; through the first column (in which any acetaldehyde is removed) is added an aldol solution of such a composition and at such a rate that the conditions in the still remain constant.
Patent GB-644191-A (GB)
Title: Improvements in spring motors
Inventor: HOBBS EDWARD WALTER
IPC: G04B5/00
Filed: 1948-06-17
Abstract: 644,191. Spring motors. KONDOR (LONDON), Ltd. June 17, 1948, No. 16357. [Class 10] [Also in Group XVIII] The output gear 5 of a spring motor driving a shaft 4 also meshes with a pinion 23 coupled by a pawl and ratchet 27, 28 to an inclined lay shaft 24 carrying a bevel pinion 25 meshing with a gear 26 secured to the input end of the spring, a proportion of the energy stored in the spring. being thus fed back continuously into the spring as it unwinds whereby the running period of the motor is prolonged. The spring motor shown is similar to that described in Specification 632,351, the pawl and ratchet allowing winding up of the spring by rotation of the gear 26, and the pinion 25 being arranged with its lower teeth parallel to the spring axis so that it remains in mesh with the gear 26 as the latter is moved axially during winding or unwinding of the spring.
Patent GB-515436-A (GB)
Title: Improvements in and relating to closures for collapsible tubes and like containers
IPC: B65D47/14
Filed: 1938-06-01
Abstract: 515,436. Closures for collapsable tubes &c. MORRIS, H. J. June 1, 1938, No. 16367. [Class 125 (iii)] A closure for a collapsable tube or other container has a plate 12, with diametrically opposite lugs 14, 15, which is adapted to close the tube outlet and is secured, as shown, to a cap 10 which is screwed on to the tube. The cap 10 has a delivery spout 11, and the lug 14 is curled to form a hinge with part of the bent wire 17 as a pin. The wire is clamped to the cap by means of a plate 20 which is soldered or otherwise fixed in position, and the ends of the wire are bent 15 when it is snapped between them. The circular part of the plate 12 may have a lining 13 up to form spring ends 18 which hold the lug of cork or the like. The hinge pin may be part of a loop supported in a bearing on the cap, or the pin may be supported in side bearings, and the holding device for the lug 15 may be a loop. In a modification the closure may be made by a member 40, Fig. 8, which swings across the delivery opening and has a convex surface which causes it to snap into the closing position.
Patent GB-1032053-A (GB)
Title: Polyanhydrides and their preparation
IPC: C08G59/42
Filed: 1963-04-25
Abstract: The invention comprises compounds of formula <FORM:1032053/C2/1> where R is an unsubstituted aromatic or saturated aliphatic hydrocarbon radical, an organo-silicon radical or a divalent metal atom, each A is an oxygen atom or -NH- radical, R1 is a radical derived from benzene or a saturated aliphatic hydrocarbon radical to two adjacent carbon atoms of which the anhydride radical is attached, and n is an integer from 2 to the maximum number of (ACOR, CO.O.CO) radicals which can be attached to R, and the preparation thereof by reaction between one mole of tricarboxylic acid or anhydride per equivalent of a compound containing a plurality of ester or amido groups.  Suitable tricarboxylic acids are trimellitic acid, 1,2,4-naphthalenetricarboxylic acid, 1,4,8-naphthalenetricarboxylic acid, 1,2,4-butanetricarboxylic acid, 1,2,3-benzenetricarboxylic acid, 1,2,3-propanetricarboxylic acid and 2,3,6-naphthalenetricarboxylic acid.ALSO:The invention comprises (1) compounds of formula <FORM:1032053/C3/1> in which R is an organosilicon radical, each A is an oxygen atom or -NH- radical, each R1 is a radical derived from benzene or a saturated aliphatic hydrocarbon radical to two adjacent carbon atoms of which the anhydride radical is attached, and n is an integer from 2 to the maximum number of [A-COR1CO.O.CO] radicals which can be attached to R, and the preparation thereof by reaction between one mole of tricarboxylic acid or anhydride per equivalent of a compound containing a plurality of ester or amido groups, and (2) curing agents for polyesters, epoxy resins and other resins in general containing hydroxy or other reactive groups of the formula given above in which R is an unsubstituted aromatic or saturated aliphatic hydrocarbon radical, an organo-silicon radical or a divalent metal atom and A, R1 and n are as defined above.  These compounds are also useful for cross-linking polymerizable materials and preparing polymers such as polyimides.
Patent GB-999234-A (GB)
Title: Process for preparation of zinc chelates of diketones
IPC: C07F3/00
Filed: 1963-04-26
Abstract: Zinc chelates are made by refluxing for 30 minutes to 4 hours, under substantially anhydrous conditions, zinc carbonate and a b -diketone of the formula <FORM:0999234/C2/1> where R is an alkyl group of 1-3 carbon atoms or a phenyl group. If desired an alcohol or benzene may be used as a non-aqueous dispersant. Up to 50 p.p.m. of water can be tolerated in the reaction system and this and the small amount of water formed during the reaction may be removed as an azeotrope. Excess of the diketone may be employed as a solvent or dispersant and can be recycled.  Examples describe the preparation of zinc acetylacetonate and zinc 1,3-diphenyl-1,3-propanedionate.
Patent GB-1128405-A (GB)
Title: A fastening device
IPC: E05C9/02
Filed: 1966-04-15
Abstract: 1,128,405. Releasable fastenings. E. A. LUST. 15 April, 1966, No. 16493/66. Heading E2A. A fastening device comprises a mounting carrying a plurality of forked bolts 1 each pivotable between a fastening position and a releasing position with longitudinal movement in one direction, or the other of a pushrod 5, and an abutment 7, lying 'in the path of a protrusion 8 carried by the push rod, said longitudinal movement being accompanied by the protrusion riding over the abutment which is permitted by resilient deflection. As shown the protrusion 8 is a roller and the push rod deflects resiliently to permit the roller to pass the abutment 7. The bolts 1 are pivoted by means of pins 2 between the sides 3 of a channel member forming the mounting, the projection 7 being secured to the base of the channel; a guide roller 9 for the bar 5 is also pivotally supported between the sides of the channel and the channel has an external flange 6a by which it is secured to a door 10 via screw holes 6b. The side walls of the channel are cut away to receive the keepers 11, each keeper consisting of a cylindrical portion which is engaged by the bolt and an eccentrically positioned pin 11a which is received in a hole in a frame for the door and which enables the cylindrical portion to be positioned for correct engagement by the bolt. The push rod 5 is biased upwardly by means of a spring 30 and it is moved between fastening and release positions merely by pushing or pulling the door 10. A stop 12 is provided which can be located directly underneath an adjusting screw 13 at the lower end of the push rod, the stop 12, with correct adjustment of the screw 13, preventing movement of the push rod from the position in which it holds the bolts in their fastening positions. When a multiplicity of doors e.g. of a multi-door cupboard are to be locked simultaneously each of the doors except one being provided with one of the fastening devices above, the stops 12 are carried by a rail 14, the rail being movable by means of a lever which is pivotally mounted on the inside of the remaining door, the lever having twd arms 19, 20. In one position of the lever, the arm 19 engages a stop 17 on the rail 14 so that when the remaining door is closed, the arm 19 abuts the stop 17 and moves the rail so that the stops 12 prevent release of the other doors. The additional door has no stop 12 but instead has an individual lock. The lever can also be pivoted so that the arm 19 does not engage the stop 17 when the remaining door is closed so that the other doors can be opened as required. The rail 14 is biased by a spring to the releasing position so that when the remaining door is opened all the other doors become unfastened automatically. The spring can either be a coil spring at the end of the rail or can be a leaf spring arranged intermediate the ends of the rail in a housing through which the rail passes. In a modification the rail can be made in separate parts the parts being connected together by interengaging teeth and each part being long enough to span one door and its frame.
Patent GB-974838-A (GB)
Title: Bag
IPC: B65D30/20
Filed: 1961-05-08
Abstract: 974,838. Paper and like bags. DU PONT OF CANADA Ltd. May 8, 1961 [May 10, 1960], No. 16564/61. Heading B8K. A plastics bag having gusseted sides has an opening 24 at the top and strengthened corners formed by folding the material as shown and heat sealing along the lines 20, 21 and 23. The bottom seam is of similar construction, the heat seals 21 extending across the whole width of the bag to form a closed bottom. The pockets formed in the corners act as handholes. The opening can be closed by heat sealing or sewing after filling.