baber/WOPTO huggingface dataset:
Patent GB-331392-A (GB)
Title: Improvements in or relating to heat exchanging apparatus
IPC: F28F1/12
Filed: 1929-07-04
Abstract: 331,392. Payne, M. July 4, 1929. Tubes, cross-sections of.-In tubular heat exchangers in which the tubes are covered with annular discs, or lengths of strip material wound helically on one edge, the discs &c. are cut to form a series of tongue like pieces which are bent alternately in opposite directions. In the case of a disc 2, Fig. 1, radial cuts divide it into sectors 3 which are alternately bent, upwards and downwards, and by using discs 6 having a pressed-out part 7 the heat exchange tube may be formed by assembling discs as shown in Fig. 12. In the case of a strip 4, Fig. 6, parallel cuts may be formed in it, thus facilitating the winding of the strip edgewise on a heat exchanger tube and furnishing parts 5 which are bent alternately in opposite directions. The strip may also be formed with parallel slits across its centre part, and can then be bent up into a U-shaped section and attached to the heat exchange tube by its edges, alternate strips being bent in opposite directions. Parallel slits may be formed on the sides of the strip which is bent up into a U- shaped section and attached to the tube along its centre portion, the projections being bent as before.
Patent GB-879515-A (GB)
Title: Improvements in or relating to electric switches having interlocking mechanisms
Inventor: CLIVES STANLEY WILLIAM
IPC: H01H3/30
Filed: 1958-06-27
Abstract: 879,515. Oil-break switches; electricallytripped switches; switchgear structures; latching switches; switch covers. GENERAL ELECTRIC CO. Ltd. May 19, 1959 [June 27, 1958], No. 20679/58. Class 38 (5). An oil circuit-breaker comprises an oil-filled lower compartment 1 housing the fixed and movable contacts 7, 9 and secured to an upper compartment 2 carrying the latching mechanism 5 and protection devices 6. Mechanism 5 consists of a metal plate 19 attached to a rotatable shaft 15 and having an arcuate arm 20, which carries a pivoted trip catch 21 whose roller 23 normally engages a notch 24 in a metal catch 25 secured to a plate 14 loosely mounted on the shaft 15. Rotation of the latter opens or closes the moving contact 9 by means of an arm 11 pivoted on the plate 14, and on an insulated bar 10 carried on an arm 8 pivoted to a terminal 4. In the closed position the arm 20 engages a U-shaped projection 21 to prevent removal of the lid 3, and a projection 18 from the inside wall of the compartment 1 engages a shoulder 17 on the arm 11 to prevent the removal of this compartment. The breaker may be opened by actuation of a tripping tail 22 which rotates the catch 21 anticlockwise, thus releasing the plate 14. The lid 3 may be replaced by an isolator of the type described in Specification 879,514 or by a cover containing instruments. Specification 879,511 also is referred to.
Patent GB-258719-A (GB)
Title: Improvements in or relating to hand-operated printing stamps for printing music
IPC: B41K1/08
Filed: 1925-08-19
Abstract: 258,719. Cronin, L. C. Aug. 19, 1925. Hand-stamps; holders for loose types. - In hand-stamps for printing music signs, of the kind comprising a holder for a series of interchangeable types, devices are provided to enable the stamp to be accurately positioned relatively to the staff lines. The types on which the signs are formed may be arranged between division plates b, Fig. 1, fixed to a holder a, and these plates b may be formed as attachment adapted to be secured to the holder. The holder is provided at its ends with projections, notches, or transparent strips with lines thereon capable of being arranged in line with the top and bottom staff lines. As shown, pointed projections d<3> are formed at the base of a plate d verticallv slidable in guides e, e<1> at each end of the holder a, lateral extensions d<1> being provided to limit the vertical movement. The plates d are arranged under the influence of plate or spiral springs f such that the feet d<2> in the normal position are below the types, printing being effected, after positioning the device, by applying pressure on the block a. To facilitate arranging the types in the holder, the division plates b are provided with teeth or notches spaced according to the staff lines, and parallel lines in line with the projections d<3> are formed on the underface of the block a. The type-holding attachments may consist of plates extending from a base having hooked ends adapted to engage with grooves g or beads on the holder a or to be fixed thereto by screws. Alternatively, type blocks c may be mounted in an attachment consisting of a plate h, Figs. 4 and 5, from which division plates b<5> are cut and pressed up, the plate h having flanges h<3> adapted to engages the grooves g, Fig. 1. The types c may then be placed in from the top and a rubber pad j interposed between their bases and the holder. Further, the signs may be indicated on the bases to facilitate composing. To facilitate sliding the attachment on to the holder a, one of the guideplates e may be hinged to the holder.
Patent GB-441345-A (GB)
Title: Improvements in the construction of metal cinema screens
IPC: G03B21/56
Filed: 1934-07-19
Abstract: 441,345. Projection screens. TURNER, D., 32, Princess Road, Gloucester Gate, London. July 19, 1934, Nos. 21076/34 and 19439 /35. [Class 97 (i)] Projection screens comprise perforated metal sheets having butted edges secured to a wood framework formed to provide openings of slightly less area than the sheets. The sheets may be nailed, screwed, riveted, &c. to the frame, the heads being embedded in the screen material to form a flush surface. The metal may be zinc, may be an alloy containing lead, or may be steel coated with spelter, lead, copper, tin, or white metal, &c. The edges of the sheets may be chamfered, toothed, or serrated, &c., and the seams between them may be filled with solder, lead, putty, &c. The finished screen may be enamelled, painted, &c. on both sides. The Figure shows perforated sheets a secured by nails f to a frame comprising wooden members c, d notched. and screwed together. The members c, d may be of rectangular, triangular, hexagonal, or octagonal shape, and may be apertured, corrugated, grooved, &c. to provide passages by which air may pass through the perforations in the sheets. The perforations may be round, triangular, square, or hexagonal.
Patent GB-959474-A (GB)
Title: Dynamo-electric machines
Inventor: PANNELL DENNIS ALEXANDER
IPC: H02K1/28
Filed: 1961-06-12
Abstract: 959,474. Alternators. ROTAX Ltd. May 31, 1962 [June 12, 1961], No. 21090/61. Heading H2A. The rotor of an A.C. generator comprises a cylinder 6 having apertures through which project poles 5 of opposite polarity to he cylinder, and which form spider 4 mounted on the shaft 2, the spider having an odd number of poles so that the cylinder may be secured by screws 7 entering the spider hub 8 at points diametrically opposite the poles 5. Bolt-heads 7a are machined off after the bolts have been screwed home. Flux return is through stationary parts 9a. Exciting coils 11 are stationary. The machine may be self-excited over rectifiers or from an exciter 15. Cooling air is directed by baffle-plates 13, 16.
Patent GB-936368-A (GB)
Title: Process for the separation of wax and oil
IPC: C10G73/06
Filed: 1961-06-12
Abstract: <PICT:0936368/III/1> <PICT:0936368/III/2> <PICT:0936368/III/3> A process for separating a wax-oil mixture comprises rapidly cooling the mixture at the rate of at least 0,5 DEG C. per minute while vigorously agitating it with high shear in the absence of a quantity of oil solvent which would be sufficient to maintain the mixture fluid at wax crystallization temperatures in the absence of agitation, the cooling being sufficient to crystallize at least a major proportion of the wax from the oil, thereafter adding an oil solvent, and separating the crystallized wax.  A suitable apparatus is illustrated in Fig. 1, and in cross-section in Fig. 2, in which the mixture to be cooled enters chamber 26 via line 34 and the cooled mixture leaves via line 35.  A rapidly rotating core 28 is provided with scrapers 29 to provide the high shear, and the outer wall 27 is cooled by means of a cooling fluid passing through the space between 27 and jacket 31.  In Fig. 3 a crude wax is heated in zone 1 to form a homogeneous mixture and passed to rapid cooler 2.  If desired water may be added via line 1A to reduce to consistency of the mixture. The cooled mixture is further cooled in heat exchangers 3,4, and filtered on filter 5. The wax cake is repulped and filtered on filter 6.  The repulp filtrate, comprising solvent, is added to the mixture at various points after rapid cooler 2 via line 8.  The temperature after leaving the rapid cooler is preferably at least 11 DEG C. below the average melting point of the wax.  A quantity of solvent may be added to the initial mixture to reduce its viscosity.  The process may be applied to oily waxes and to waxy oils.
Patent GB-1481134-A (GB)
Title: Method and apparatus for programming a computer operated robot arm
IPC: G05B19/42
Filed: 1975-05-19
Abstract: 1481134 Computer control of robot arm CINCINNATI MILACRON Inc 19 May 1975 [16 July 1974] 21243/75 Heading G3N A digital computer controlled robot arm is taught, on line, a cycle of operation thereby permitting it to automatically repeat the cycle. The robot arm 10 is as described in British Patent No 1408666 and has a base 12 holding actuator 14 providing a first rotation axis connected via coupling 16 to rotatably mounted plate 18, actuator 20 providing the second rotation axis. Upper arm 22 is connected via shoulder joint 23 to actuator 20 and actuator 24 provides rotation of lower arm 26 about upper arm 22 using elbow joint 25. Hand 27 has rotary actuators 28, 30, 32 and a function element 34, e.g. grippers, welders, or a spray gun. The actuators are electric, hydraulic or pneumatic. There are three co-ordinate systems used in the control of the robot arm 10: A generalized co-ordinate system is defined by the respective relative angles a, b, c, d, e of arm 10 (Fig. 2). A first rectangular co-ordinate system has an origin 44 at the intersection of the axis of rotation of the shoulder joint and the arm positions can be defined in terms of x, y, z co-ordinate axes. On Fig. 2, line 46 corresponds to upper arm 22, intersection 48 corresponds to elbow joint 25 and line 50 corresponds to arm 26. Actuators 28, 30 are represented by points 52, 54, line 56 represents the distance between actuators 28, 30 and line 58 represents the distance between point 76 and actuator 30. Orientation is defined using co-ordinate angles m, n, p which form another part of the first co-ordinate system and are defined relative to a rectangular co-ordinate system with its origin at point S4 (Fig. 3). A teaching co-ordinate system is either the first rectangular system or a cylindrical system with the same z axis and origin as the rectangular system. Programming (teaching) is effected by leading arm 10 through its cycle of operation and, at the appropriate locations, the desired functions are programmed using manual controls Fig. 5 (not shown). A computer Fig. 4 (not shown) has a teach program which converts the data obtained by leading the arm, in the teaching co-ordinate system, into data in the first rectangular system. This is then transformed into data in the generalized co-ordinate system by a routine in a motion program. This is then used to control subsequent arm movement using a closed loop feedback system. The computer includes a keyboard and CRT display Fig. 6 (not shown) and the programs are described in detail Figs. 7-21 (not shown). Tool velocity can be programmed and rectangular to generalized co-ordinate conversion is effected using the Newton-Raphson method Fig. 9 (not shown).
Patent GB-729012-A (GB)
Title: Improvements in or relating to the chill-casting of hollow metal articles
IPC: B22D15/00
Filed: 1953-07-31
Abstract: 729,012. Sand-blast. PANGBORN CORPORATION. July 31, 1953 [Sept. 23, 1952], No. 21262/53. Class 60. [Also in Group XXII] A centrifugal blasting apparatus comprises a runner head 12 carrying blades 14, reinforced by ribs 15 and held in place by pins 18. A feed cage 20 is positioned at the centre of the runner head and has a central aperture 30 and a feed slot 32. Within the cage is mounted an impeller 34 having vanes 36 and connected to the runner head by a bolt 40 to rotate therewith. The interior of the impeller is hollow and is supplied with blastant particles of for example metal or sand, through a spout 42. The feed cage and impeller are chill cast (see Group XXII).
Patent GB-733282-A (GB)
Title: Improvements in and relating to methods and apparatus for separating solids having different specific gravities
IPC: B03B5/44
Filed: 1953-07-31
Abstract: 733,282. Washing granular materials. TROMP, K. F. July 31, 1953 [Aug. 6, 1952], No. 21292/53. Class 82 (2). A sink and float process using a suspension which increases in density in downward direction, has horizontal currents to discharge the middlings, the upper part of the suspension and middlings being discharged in a horizontal or upwardly inclined direction and the lower part of the suspension and middlings being discharged in a downward direction. The material to be separated is supplied down a shoot 22 and the floats are removed by the conveyer 8 onto a rinsing-screen 23. The sinks are similarly removed by the conveyer 6 onto screen 26. Medium is supplied by jets 12 onto guide sheets 13 to produce the horizontal currents (suspensions of differing S.G. may be supplied to the jets), the lighter middlings are discharged over a weir 4, the height of which may be adjusted, and the heavier middlings are discharged down a vertical conduit 15 both to a screen 24. The heavier suspension (from conduit 15) drains into a boot 27 and is returned to the tank by a pump 28 and the lighter suspension (from weir 4) drains into a boot 29 and is returned to the jets 12 by a pump 30. Overflow from boot 27, in which the suspension settles, runs into boot 29 thus keeping up the specific gravity in boot 27. Air may be injected at 31 to mix the suspension lying above the conduit 15. The weir 4 can be varied in height periodically by a drive from the top roller of the conveyer 8.
Patent GB-1432201-A (GB)
Title: Curable compositions containing polyenes and polythiols
IPC: C08G75/12
Filed: 1973-05-04
Abstract: 1432201 Curable compositions of aftertreated styrene polymers W R GRACE & CO 4 May 1973 [5 May 1972 (3) 8 Feb 1973] 21323/73 Heading C3P [Also in Divisions G2 and H1] A solid curable composition comprises: (1) a polyene containing at least two carbon-carbon unsaturated groups per molecule, which are reactive with thiol groups, and (ii) a polythiol, the total number of said unsaturated groups per average polyene molecular, and of thiol groups per average polythiol molecule being greater than 4, in which composition (i) and/or (ii) are solid derivatives of a copolymer of styrene (or a chloro or C 1 _ 4  alkyl nuclear substituted derivative thereof) and an ethylenic alcohol; the solid polyene being the reaction product of said polymer with a monoisocyanate or carboxylic acid containing a carbon-carbon unsaturated group, and/or the solid polythiol being the reaction product of said polymer with a mercapto-carboxylic acid. Examples 1-4 describe the preparation of solid polymeric polyenes by reacting a styrene allyl alcohol copolymer with acrylic acid, tolylene diisocyanate (TDI)/ allyl alcohol reaction product, or TDI/trimethylol propane diallyl ether reaction product. Examples 5-9 describe the curing of these products with a commercially available liquid monomolecular polythiol, as a coating on circuit board bases, using imagewise exposure to U.V. light. Examples 10-13 describe the preparation of solid polymeric polythiols by reaction of styrene allyl alcohol copolymer with betamercapto propionic acid or mercapto acetic acid, and Examples 16-18 describe curing mixtures of these and liquid polyenes prepared from isocyanates and unsaturated alcohols in Examples 11-15, to form printed circuit boards as above. Examples 19-28 describe curing mixtures of the solid polymeric polyenes from Examples 1-4, and solid polymeric polythiols from Examples 10-13, again using U.V. light, to form printed circuit boards as above (see Division G2). In the description, many extensive lists of suitable reactants which may be used to prepare the solid polyene or polythiol derivatives of the styrene/unsaturated alcohol polymers, and of suitable monomolecular liquid polyenes and polythiols, are given, but they are too lengthy to reproduce here.
Patent GB-1428521-A (GB)
Title: Extruded plastics carriers
Inventor: OWEN R
IPC: B65B17/02
Filed: 1973-05-04
Abstract: 1428521 Carriers for groups of cans; bottles; &c ILLINOIS TOOL WORKS Inc 4 May 1973 [5 May 1972 11 May 1972] 21328/73 Heading B8C The invention relates to a carrier for a group of similar generally cylindrical containers the carrier having been cut from stock comprising a pair of extruded strands 10, 11, or 12, 13 of n resilient deformable plastics material which were arranged, whilst still molten or semimolten from their extrusion, in such a manner that adjacent faces thereof fused together to give joints which are smoothly curvilinear and thus notch free, the joints being located at first longitudinally-spaced positions 16, 16 or 17, 17 where the strands run tangentially to one another, and the stock having been severed transversely through a chosen two of the tangential joints at first positions to form thereby an elongate carrier strip including a number of closed bands, each of which can, in use, encircle and resiliently grip a respective container. Spaced pairs of nozzles, not shown, which respectively extrude the strands 10, 12 and 11, 13, reciprocate, in opposite phase, transversely to the direction of extrusion, the strands 10, 12 crossing respectively the strands 11, 13 and being fused together at intermediate joints 14, 15. Individual carriers are formed by cutting through the appropriate tangential joints 16, 17. With stock comprising more than two pairs of strands it may be necessary to sever at least some of the further tangential fusions 18 between the strands 11, 12. The stock may be flattened to web form by passing it between a pair of rollers (20), Fig. 2 not shown, which may be heated. A strand (30), to form handles, may be extruded from a stationary nozzle to extend centrally of the pairs of strips (31, 32) and (33, 34), Fig. 3, not shown, and be connected at tangential points (38). The central portion of the stock may be flattened by passing it through a pair of narrow rollers (40), Fig. 4, not shown. The stock, Fig. 6, has a handle strand 64, and additional side strands 57, 58 which form tangential fusions 60, 61 and 62, 63 respectively with the strands, 50, 51 and 53, 52. The strands (110), Fig. 17, not shown, are extruded as flat ribbons all of the fused joints (111, 112) being tangential. In a final embodiment, particularly for bottles 142, having reduced neck portions, Figs. 17, 18, pairs of ribbons 140, 140 are fused tangentially at 141 to provide spaced bottle-neck-engaging portions, the handles being formed of extruded ribbons 143, 144 fused to one another at 145 and to ajacent ribbons 140. The stock, which includes no notches, and stated to be unexpectedly strong, and is preferably made of low-density polyethylene.
Patent GB-517324-A (GB)
Title: Improvements in and relating to the production of bases for lacquers, plastics and like materials and the products produced therefrom
IPC: C09D101/18
Filed: 1938-07-18
Abstract: 517,324. Lacquers etc.; pigment dispersions. BINNEY & SMITH CO. July 18, 1938, No. 21329. Convention date, July 28, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 17, 1939.] [Class 1 (i)] [Also in Group IV] Pigmented bases for use in the manufacture of lacquers &c. in which the pigment is dispersed with the aid of a metal soap such as copper oleate are stabilized by means of an aromatic polyamine. Suitable agents are the primary polyamines such as benzidine, phenylenediamine, meta toluylenediamine, polyamino condensation derivatives of sulphanilic acid, and dye intermediates such as rosaniline base, bismark brown, induline base and chrysoidine base. The invention is particularly applicable to lacquers comprising cellulose esters or ethers to which resins and/or gums in alcoholic solution have been added. Specification 418,080 is referred to.
Patent GB-1479797-A (GB)
Title: Brake control devices in motor vehicles
IPC: B60T8/30
Filed: 1975-05-20
Abstract: 1479797 Hydraulic brake valves AISIN SEIKI KK 20 May 1975 [20 May 1974] 21418/75 Heading F2F An inertia-responsive hydraulic brake pressure limiting or proportioning valve is mountable on a shackle 13 which is in use pivoted at its ends to sprung and unsprung parts of a vehicle to adjust the inclination and hence the operational threshold of the valve with vehicle loading. In Fig. 1 a pressure limiting valve comprises a chamber 21 with a ball 23 and seating 28 between an inlet 19 from a master cylinder and an outlet 20 to rear brakes. In Fig. 3 a proportioning valve comprises a stepped piston 33 with a land 44 co-operable with the upper surface of a seal 46 when the outlet pressure acting in the chamber 49 exceeds the force of a spring 39 and the inlet pressure acting in the chamber 48 to increase the outlet pressure at a lower rate than the inlet pressure. Normally the inlet pressure acts on a piston 37 to urge the lower seating of the spring 39 up. wards to hold the valve open until the deceleration threshold is reached when the ball 43 seats at 53 to stop the piston 37 after which the valve proportions the outlet pressure, the split point varying with the inclination of the valve housing.
Patent GB-1022328-A (GB)
Title: Improvements in or relating to intramedullary nails for use in bone surgery and instruments for use in fitting and extracting such nails
IPC: A61B17/92
Filed: 1964-05-25
Abstract: 1,022,328. Nailing tool. SYNTHES A.G. May 25 1964 [Sept. 26, 1963], No. 21461/64. Heading B4C. [Also in Division A5] A device for driving an intramedullary nail (see Division A5) into a bone or extracting it comprises a twopart rod 4 having shoulders 4c, 4d at each end and on which a weight 5 is slidable. For inserting the nail, the weight is caused to fall repeatedly against the shoulder 4c nearest the nail and for extracting the nail the weight is urged repeatedly against the other shoulder 4d. The operative end of the device is secured to an interument 2 threaded into the nail 1.
Patent GB-1470236-A (GB)
Title: Process for the n-methylation of amines
IPC: C07C209/16
Filed: 1974-05-15
Abstract: 1470236 N-Methylation of amines HOECHST AG 15 May 1974 [17 May 1973] 21529/74 Heading C2C A process for N-methylating an amine comprises reacting it with methanol in the gaseous or trickling phase in the presence of a catalyst comprising a mixture of silicon dioxide and an oxide of lanthanum or a lanthanide. The amine may be an alkyl-, phenylalkyl- or dialkylamine or alkylene diamine having up to 18 carbon atoms in the or each alkyl or alkylene group or a cycloalkylamine or polymethylene imine having up to 12 carbon atoms. The amines may be substituted (e.g. by hydroxyl or methoxy groups) or interrupted by hetero-atoms (e.g. oxygen). Preferably the lanthanide is Di 2 O 3  where Di is La+Ce+Pr+Nd+Sm+ Gd + Yb. The catalyst may be calcined prior to use.