baber/WOPTO huggingface dataset:
Patent GB-854368-A (GB)
Title: Production of seamless tubing
IPC: B29C48/10
Filed: 1957-02-20
Abstract: <PICT:0854368/IV(a)/1> <PICT:0854368/IV(a)/2> Seamless tubular films are made by continuously extruding hot thermoplastic material through an annular die, inflating the extruded tubing to a predetermined diameter and blowing a cooling gas against the outer surface of the tubing, the cooling gas being directed against said surface from an annular source which is coaxial with the extrusion orifice and is rotated to and fro about its axis, e.g. through an angle within the range 30 to 120 degrees and with an oscillation frequency of 1/2 to 1 1/2 cycles per minute.  As shown in Fig. 2, heated thermoplastic material, such as polyethylene, is supplied under pressure from an extruder 11 to a conventional heated extrusion die 12 having an annular opening 14 through which the material is extruded in the form of tubing 16 and having also a central passageway 17 through which air under pressure from a source 13 is introduced into the interior of the tubing to inflate it to a predetermined diameter. Simultaneously an annular stream of cooling air is directed on to the outer surface of the tubing by means of an annular supply chamber 18 comprising upper and lower annular members or rings 19, 21 secured together by peripheral bolts 22 and rotatably mounted on a stationary annular support 23 by means of rollers 24 (Figs. 1 and 2) and ball bearings 26.  Air is supplied from the stationary blower 27 to an inlet 28 in the annular support 23 and passes through the space between the upper and lower rings 19 and 21 to an annular passage 29 therein from which it is discharged on to the outer surface of the tubing 16.  In order to render the air flow through the space between the members 19 and 21 more uniform, there are provided concentric baffles, 31, 32, 33.  Leakage of air between the stationary support 23 and the rotating chamber 18 is prevented by means of a pair of annular rubber seals 34, 36 which are cemented on to the annular shoulders 37, 38 of the support 23 and engage the rounded portions 39, 41 of the rings 19, 21.  The apparatus also includes means (described in Specification 854,369) for adjusting the width of the air discharge passage 29.  The cooling air supply chamber 18 is rotated to and fro by means of a motor 56 (Fig. 1) which drives the chamber through a variable speed gear 56a, pulley 57 and belt 58 disposed in a circumferential groove 59 in the upper ring 19 (Fig. 2).  The motor 56 is controlled by a reversing switch 61 (Fig. 1) which, like the motor, is mounted on a bracket 62 secured to the support 23.  The switch has two operating levers 63, 64 positioned at different distances from the chamber 18, each lever being adapted to be engaged by a corresponding tripper 66, 67 mounted on, and extending from, the upper ring 19.  The apparatus enables films of uniform thickness to be produced even when the wall thickness exceeds about 0,003 inch.  Specifications 654,550, 716,160 and U.S.A. Specification 2,461,976 also are referred to.
Patent GB-734273-A (GB)
Title: Improvements in or relating to transformers
IPC: H01F38/10
Filed: 1952-03-06
Abstract: 734,273. Transformers; supply systems for space discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 6, 1952 [March 9, 1951], No. 5876/52. Classes 38 (2) and 38 (4). A transformer for feeding a capacitive load whose starting voltage is higher than its working voltage, such as a gas- or vapour-filled discharge tube 5 serially connected with a condenser 4, has a main secondary winding 9 closely coupled to or in part identical with the primary winding 3 and which produces .an open-circuit voltage substantially greater than the starting voltage, and an auxiliary secondary winding 10 coupled loosely, with the primary winding and. connected in oppsoition to the secondary winding 9 to reduce the resultant open-circuit voltage to not less than the starting voltage, it being stated that the flux linked with the auxiliary winding 10 is the same in both the open-circuit and working conditions. As shown, an additional lamp 13 may be supplied with lagging current from another secondary winding 12 and the transformer core 1 has magnetic shunts 7, 11 to produce the required leakage flux paths.
Patent GB-1063155-A (GB)
Title: Printing and dyeing of aromatic polyester fibre materials
Inventor: HEINRICH ERNST
IPC: D06P3/54
Filed: 1966-02-10
Abstract: The monoazo dyestuff of the formula <FORM:1063155/C4-C5/1> is used to dye or print fibrous materials of aromatic polyethers. It may be obtained by diazotization of p-toluidine followed by coupling to the appropriate napthoylanilide.ALSO:Fibrous materials of aromatic polyesters are dyed or printed with the dye of the formula:- <FORM:1063155/D1-D2/1> The dyeing may take place at 80 - 110 DEG C in the presence of carriers of at 110 - 140 DEG C. without carriers or by the thermofixation process at about 200 DEG C which process is also suitable for printing.  Examples are given.
Patent GB-856932-A (GB)
Title: Improvements in or relating to colour-selective optical systems corrected for astigmatism
IPC: G02B27/00
Filed: 1957-02-21
Abstract: 856,932. Optical systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 21, 1957 [Feb. 24, 1956], No. 5889/57. Class 97(1) A colour beam-splitter corrected for astigmatism comprises a system of dichroic plane mirrors positioned inclined to one another so that considered from the direction of incident light, the first colour-selective layer is provided on the front side of a transparent plane-parallel plate having a thickness d1 and refractive index n1 and making an angle a1 with the optical axis, whilst the second colour selective layer is provided on the rear side of a second transparent plane-parallel plate of thickness d2 and refractive index n2 and making an angle a2 with the axis, and a third transparent plane-parallel plate of thickness d3 and refractive index n3 and making an angle a3 with the axis, the incident planes of the second and third plates each being displaced about the axis through an angle of approximately 90 degrees with respect to the incident plane of the first plate and As shown a plate 1 at an angle a1 to the axis xx carries a dichroic layer reflecting the red rays R and transmitting the blue and green (B+G) to a second plate framed by two plates 2, 3 each of half the thickness of the plate 1, arranged with the plane of incidence of an axis beam perpendicular to that of the plate 1 and having between them a dichroic layer 2<1> reflecting the blue ray and transmitting the green. The plates 2 and 3 may be separated, the layer 21 being on the rear face of the plate 2. The planes of incidence on the plates 2 and 3 may be relatively displaced through 180 degrees.
Patent GB-289599-A (GB)
Title: Improvements in or relating to expansion joints for piping
IPC: F16L51/02
Filed: 1927-03-04
Abstract: 289,599. Rose, T. March 4, 1927. Expansion joints.- In a pipe expansion joint of the kind described in Specification 131,208, the tubular member 1, having an outward bulge 2 with flattened apex, is formed in one piece by pressing and is afterwards connected to the flanges 3 by welding. The walls of the bulge are slightly inclined as shown.
Patent GB-267138-A (GB)
Title: Process and apparatus for the hot desulphurisation of gases derived from the distillation or the pyrogenation of solid, liquid or other combustibles
IPC: C10K1/20
Filed: 1927-03-04
Abstract: 267,138. Soc. Internationale des ProcÚdÚs Prudhomme Houdry. March 4, 1926, [Convention date]. Purifying processes.-Distillation &c. gases employed in the manufacture of synthetic liquid fuels are first passed through a series of purifiers, maintained at 250‹ C. in order to remove separately and successively " mineral " and " organic " sulphur. In a plant comprising two batteries A, B, C and A<1>, B', C<1> for alternative use to permit of regeneration, the first purifiers A, A may be charged with finely divided oxides of nickel on a support of porcelain, clinker, pumices tone or porous earth, and the second purifiers B, B<1> with oxides of copper or iron. A third purifier C or C<1> with a similar charge to that of the first is included if the gases contain steam, since by the action of steam on the metallic sulphides produced in purifier B or B<1> sulphuretted hydrogen is reformed. Regeneration may be effected by air or water gas charged with steam. Thus the purifier A or A<1> is subjected to an air current from a heater K to which a supply pipe J is connected, whilst the purifiers B, C, or B<1>, C<1> are subjected to a water gassteam current from a heater R maintained at 350‹ C. to which a supply pipe Q is connected. The sulphur dioxide leaving the purifier A or A<1> and the sulphuretted hydrogen leaving the purifiers B, C, or B<1>, C<1> are passed to a water vat P. Shunt pipes F, F<1> cut out the last purifiers if the gases do not contain steam.
Patent GB-1435641-A (GB)
Title: Protective device for line connectors for communications circuit
IPC: H01T4/10
Filed: 1974-02-11
Abstract: 1435641 Fusible protector RELIABLE ELECTRIC CO 11 Feb 1974 [9 March 1973] 06157/74 Heading H2G A protective device comprises contacts 35, 40 which are grounded when solder 76 is melted either by an auxiliary heater 79 in overcurrent conditions or by prolonged arcing across gap 74 to ground in series with the solder 76 in overvoltage conditions. The device also comprises a representative pair of terminal pins 25, 29 in a dielectric plastics base 15, said pins electrically and mechanically joined to flat spring contact 35 and contact 40 respectively. These contacts are normally joined in series through end 80, metal bobbin 62, heating coil 79 which connects the lower disc 63 of the metal bobbin to the metal ring 75, and end 77. Ring 75 is separated from the bobbin shaft by an insulator 73. The arcing circuit comprises in series the ground pin 27, leg 48, strip 45, conducting cup 64 enclosing carbon blocks 70, 68 separated by the arc gap 74, copper cap 84, metal cylinder 82, solder 76 thence through the bobbin direct to contact 35 or through winding 79 to contact 40. The two carbon blocks 68, 70 are separated by an insulating member 72 and gap 74 is designed to requirements. Under persistent arcing conditions solder 76 melts and the spring action of contact 35 pushes the bobbin assembly on to the turned lip 69 of the grounded cup 64. End 77 of contact 40 maintains sliding contact with ring 75 (Fig. 5, not shown). It is stated that arcing of short duration is insufficient to melt solder 76. In high current conditions arcing need not necessarily occur, in which case solder 76 is melted by heat from coil 79. Conducting cup 64 is separated from contact 35 by their dielectric tape strip 52, which may be of a type that melts when arcing occurs. In this case, contact 35 is directly grounded. Two sets of protective devices are on the same base 15 (Fig. 3, not shown) with insulating sleeving 66 to prevent arcing between sets. The dummy pin 28 ensures single-orientation insertion into a communication line circuit. The unit has a dielectric plastics housing 16.
Patent GB-1406013-A (GB)
Title: Digital noise generator
IPC: G06F7/70
Filed: 1973-02-08
Abstract: 1406013 Pseudo random number generators SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 8 Feb 1973 [11 Feb 1972] 6342/73 Heading G4D A first sequence of random or pseudo random numbers is produced in a register 2; a pseudoindependent sequence is produced in a shift register 8 by feeding to it the output of an exclusive-OR operator 9 fed from selected stages of the register 2. A delayed version of the first sequence appears at the output of the register 8. The register 2 may be a shift register with feedback from two stages by an exclusive- OR gate 3 to generate the first pseudo random sequence.
Patent GB-857810-A (GB)
Title: Improved baling machine
IPC: A01F15/10
Filed: 1959-02-24
Abstract: 857,810. Baling presses. ALLIS-CHALMERS MANUFACTURING CO. Feb. 24, 1959 [Feb. 25, 1958], No. 6402/59. Class 94(1). [Also in Group XXIV] A baling machine having a continuously operated feed mechanism 81, Fig. 1, up which material passes from an inlet end to an outlet position, and from which the material is intermittently passed to the bale forming means 2, is provided with means 84 and 153 for causing the material to return from the outlet position to the inlet end of the feed mechanism 81 during those periods when transfer of material to the bale forming mechanism 2 must temporarily cease. The baling mechanism 2 is of the kind which rolls a cylindrical bale 43 between tensioned belts 16, 17. When the bale is of sufficient size the action of the belts on associated levers 22, 28 causes a conveyer 84 between the feed mechanism 81 and the baling mechanism 2 to pivot upwards, Fig. 4. The incoming material on the feed mechanism 81 then passes up the conveyer 84 to a reversible rotary impelling means 154 transferring the material to a conveyer 153 that carries the material back to deflecting plates 218 causing the material to drop onto the inlet end of the conveyer 81. After a completed bale has been discharged from the baling mechanism 2, the lower tension arm 22 drops and this causes the conveyer 84 to revert to its normal position for conveying material from the feed mechanism 81 to the baling mechanism 2; the reversible rotary impelling means 154 changing its direction of motion to assist the feeding of material to the baling mechanism. Bale-tying mechanism. When the lower tension arm 22 reaches a bale finishing position, it actuates a trip mechanism causing a twine tube 47, Fig. 1, to drop to a lower position and present the free end of the twine projecting therefrom to the material moving into the bale rolling area. Shortly after the twine has been entrained in this material, the feed of the material to the baling mechanism is temporarily diverted as above and a sweep of the twine tube 47 lengthwise of the bale causes the twine to be wrapped spirally about the bale. Bale-discharging mechanism. At the end of the tying operation, the twine tube 47 is returned to its original raised position and automatically operated means causes the bale rolling chamber to open by separation of trip rollers 19 and 26 whereupon the completed bale is discharged. Specification 785,586 is referred to.
Patent GB-101014-A (GB)
Title: Improvements in Electrical Regulators.
Inventor: KETTERING CHARLES FRANKLIN
IPC: H02P9/24
Filed: 1916-05-04
Abstract: 101,014. Kettering, C. F. July 26, 1915, [Convention date]. Electro-magnetic interrupters.-In a regulator of the vibrating-armature type, a coil 23 in series with the shunt field 21 is short-circuited by the contacts 29, 30 when the armature is in its non- attracted position, and included in circuit when the main coil 22 attracts the armature. The coil 23 opposes the coil 22. A non-inductive coil 24 is also used to prevent sparking. The coil 22 may be a voltage or current coil. The inclusion of the coil 23 minimizes sparking when the contacts 29, 30 are opened. Reference has been directed by the Comptroller to Specification 7156/13.
Patent GB-106128-A (GB)
Title: Improvements in Small Four-wheeled Trucks or Carriages.
Inventor: GRICE HARRY
IPC: B62M1/14
Filed: 1916-05-09
Abstract: 106,128. Grice, H., and Goodwin, A. May 9, 1916. Hand driving-mechanism.- A four-wheeled truck having steering-wheels m mounted upon a common axle which is free to be turned about a vertical pivot by the feet or hands of the rider is provided with hand driving-gear comprising a sprocket-wheel b connected to the axle a of the driving-wheels by a one-way clutch and operated by a chain c connected at one end to a hand-lever i and at the other end to an anchored spring c. Reference has been directed by the Comptroller to Specification 26451/01.
Patent GB-592936-A (GB)
Title: New pyrimidine compounds
IPC: C07D239/46
Filed: 1944-04-11
Abstract: 4-Hydroxypyrimidines unsubstituted in the 5- and 6-positions, but substituted in the 2-position by an arylamino group which bears one or more non-acidic nuclear substituents of molecular weight greater than 15 are made by the interaction of an appropriately substituted primary arylamine with a 2-alkylmercapto-4-hydroxypyrimidine unsubstituted in the 5- and 6-positions.  The substituents in the arylamino group may be halogen atoms, nitro, cyano or esterified carboxyl groups or hydrocarbon radicals (which may themselves carry substituents and which may be attached to the arylamino group directly or indirectly, e.g. through an oxygen, sulphur or nitrogen atom or through a carbonyl group).  Specified arylamines are o-, m- and p-chloroanilines, p-anisidine, p-nitro-, -bromo- and -cyano-anilines and 6-bromo- and -methoxy-2-naphthylamines. Specified pyrimidine derivatives are 2-methyl-and -ethyl-mercapto-4-hydroxypyrimidines.  In the example, 2 - methylmercapto - 4 - hydroxypyrimidine and p-chloroaniline are heated in presence of b -ethoxyethanol to give 2-p-chloroanilino - 4 - hydroxypyrimidine.  Specification 592,928 is referred to.
Patent GB-553021-A (GB)
Title: Improvements in or relating to teleprinter systems
IPC: H04L17/00
Filed: 1941-05-23
Abstract: 553,021. Rotary distributers. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 23, 1941, No. 6650. Convention date, Aug. 17, 1940. [Class 38 (v)] [Also in Groups XL and XXIV] A distributer comprises six pairs of springs T1 . . . T6, Fig. 6, carried by an adjustable spider 91 and closed in turn by an adjustable plate so that the times at which the contacts are closed can be varied. Specification 561,883 is referred to.
Patent GB-737021-A (GB)
Title: Crushing machine with grinding discs moving relatively to each other
IPC: B02C7/08
Filed: 1953-03-11
Abstract: 737,021. Disc mills. MERGES, H. A., [trading as CONDUX-WERKE H. A. MERGES KOMM.-GES.]. March 11, 1953 [March 15, 1952], No. 6700/53. Class 59. In a disc mill comprising fixed and rotary grinding discs and in which the rotary disc is resiliently flexibly coupled with the driving shaft so that it can carry out any desired sway. ing movement, the carrier 5 for the rotary disc 4 is coupled to the hub 6, which is connected to the driving shaft 8 by means of a cone clutch 7, by means of a pile of annular elastic discs 10 which may be provided with dampening intermediate layers.
Patent GB-491796-A (GB)
Title: Improvements in or relating to envelopes
IPC: B65D27/16
Filed: 1937-03-08
Abstract: 491,796. Envelopes. THRELFALL, R. A. March 8, 1937, No. 6736. Drawings to Specification. [Class 146 (ii)] An envelope is provided either on the sealing flap or the back part, or both, with an adhesive coating which will permanently retain its tacky nature, and the adhesive is protected'by means of sheet material of a gauze-like flexible nature which is applied thereover and can be ripped off to expose the adhesive when the envelope is to be sealed. The protective sheet material is of greater area than the adhesive coating to provide a tab to facilitate the removal of the sheet material.
Patent GB-471547-A (GB)
Title: Method of flame machining shaped edges on metal members
IPC: B23K7/00
Filed: 1936-03-06
Abstract: 471,547. Flame - machining shaped edges for welded joints. LINDE AIR PRODUCTS CO. March 6, 1936, No. 6764. Convention date, March 28, 1935. [Class 83 (iv)] Shaped edges are formed on metal members such as steel plates 10 by making a groove 12 either mechanically by means of a milling cutter or a planing tool, or by flame-machining, and then making a cut 22 lengthwise of the groove and extending such cut from the wall of the groove through the remaining thickness of metal. The cut is made by flame-cutting when the groove is cut mechanically, but may be made either by flame-cutting or mechanically where the groove is formed by flame machining. Where both operations are carried out by flame machining, a blowpipe having two nozzles is used. One nozzle N, Fig. 2, is directed at an acute angle to the work in the direction of motion and oxygen from it cuts a groove 17-21, Fig. 1, in a series of passes along the plate. The nozzle C which is directed perpendicular to the plate is then turned on for the final traverse and makes a cut 22 through the bottom of the groove. The groove may be U-shaped as shown with straight side walls or the walls may diverge, in some cases a V-groove is formed by flame-machining at the side opposite to that in which the U- portion is formed, Fig. 8.
Patent GB-1499517-A (GB)
Title: Unscrewing of strings of elements
IPC: E21B19/16
Filed: 1975-02-18
Abstract: 1499517 Unscrewing drill pipe sections STENUICK FRERES 18 Feb 1975 [18 Feb 1974] 6811/75 Heading B3N [Also in Division E1] In an earth boring machine of the type having a rotary drill motor 2 movable along a guide column 3 and having a drive shaft with a threaded end portion 22 for threaded engagement with the threaded connection 121 at the top end of the uppermost element 101 of a drill string (e.g. of rods or pipes), reverse torque is transmitted to the uppermost element 101 to unscrew the joint between the uppermost element and the next element 102 (which is held stationary by a spanner) by means of a skirt 4 having internal flats and which is slidably mounted on a portion 212 of the drive shaft having external flats for movement between a retracted position (Fig. 5) and an advanced position (Fig. 4) in which the internal flats on the skirt 4 engage flats 12 formed on the top end of the drill string element. The skirt 4 is moved by means of a double acting jack formed by a piston 40 secured to the skirt 4 and a cylinder 5 fixed to the motor 2.
Patent GB-848310-A (GB)
Title: Improvements in liquid-cathode rectifiers
IPC: H01J13/02
Filed: 1959-02-27
Abstract: 848,310. Metal vapour convectors. ALLMANNA SVENSKA ELEKTRISKA A. B. Feb. 27, 1959 [March 3, 1958], No. 6838/59. Class 39(1). A mercury pool rectifier consists of a horizontal metal envelope 1, Fig. 1, with liquid cathode 2 and four anodes units 3-6 disposed along the uppermost generator of the envelope. The anode units have a common condensation chamber in which may be disposed plates so that the condensed vapour runs directly back to the wells 2 in the envelope. Separate air cooling systems for the anode units and the shell are provided by means of fan 8. The device may have only two, or as many as 8 anode units which in the latter case are preferably disposed along two generators of the cylinder on the upper half of the shell.