baber/WOPTO huggingface dataset:
Patent GB-388679-A (GB)
Title: Improvements in nap-raising, sleeking and the like fabric dressing machines
IPC: D06C11/00
Filed: 1932-08-31
Abstract: 388,679. Napping fabrics. SCHIFFERS, A., 15, Eilfschornsteinstrasse, Aachen, Germany. Aug. 31, 1932, No. 24325. [Class 42 (i).] In a machine for napping &c. fabrics wherein the fabric F passes round a number of sets of tension and guide rollers 12, 13 and is operated on at a number of points, the rollers are resiliently pressed against the napping drum 11 by springs, rubber blocks, &c. 36, and can be moved simultaneously towards and away from the drum by screw or other mechanism 37, the screws 37 being of a different pitch to the screws operating the rollers 13, or the crossheads 41 carrying the rollers 12 being so connected by links 43 to the crossheads 42 carrying the rollers 12 that the motion of the rollers 12 is greater than the motion of the rollers 13 so that the cloth tension does not vary as it moves into or out of contact with the drum 11. The fabric is next operated on by a brush 14, then on the reverse side by another brush 17 and finally by a felt covered roller 15 before passing back to the vat whence it may be passed again through the machine. The drums 11, 14, brush 17, roller 15, the clearing brush 16, some or all of the guide rollers 13 and the various feed rollers are driven by a single electric motor. The screws 37 are rotated by bevel wheels 30, 28 and a hand-wheel, and the guide wheels 20 near the drum 14, also the brush 17 and roller 15, are adjustable by means of handwheels &c.
Patent GB-1105103-A (GB)
Title: Phenylalanines
IPC: C07C227/32
Filed: 1966-06-01
Abstract: Compounds of formula <FORM:1105103/C2/1> are prepared by reacting an alkali-metallobenzene of formula <FORM:1105103/C2/2> with a propanoic acid ester of formula <FORM:1105103/C2/3> and subjecting the a  - alkyl - b  - (substituted phenyl)-alanine ester obtained to acid hydrolysis, wherein R1 and R2 represent C1- 5 alkyl radicals, M is an alkali metal, n is 1 or 2 and X is a halogen atom or a sulphoxy, p-toluenesulphonyloxy or methanesulphonyloxy radical.  L - 2 - Amino - 2 - methyl - 3 - bromopropanoic acid is obtained from D,L-a -methylserine which is resolved to the L-form by selective seeding with L-brucine salt, followed by bromination to produce the 3-bromo hydrobromide which is converted to the free base by cautious neutralization.
Patent GB-1582193-A (GB)
Title: Dispersed air flotation machine
IPC: B03D1/24
Filed: 1977-06-13
Abstract: DISPERSED AIR FLOTATION MACHINE A machine for dispersing gas bubbles in a liquid includes a horizontal series of adjacent flotation cells without baffles or mechanical gas distribution means.  In each cell, an ejection device is mounted to expel a two-phase gas-liquid mixture into the cell.  Liquid is pumped into the ejection devices so that the density and energy of the mixture at the point of ejection falls within Region I in Figure 3.
Patent GB-518289-A (GB)
Title: Method of glueing together workpieces, particularly those of the thick-walled type
IPC: B27G11/00
Filed: 1938-08-20
Abstract: 518,289. Gluing wood. BASELER, W., DIETRICH, J., and GOLDSCHMIDT AKT.-GES., T. Aug. 20, 1938, No. 24570. Convention date, Sept. 17, 1937. [Class 145 (ii)] [Also in Group XI] In gluing thick-walled workpieces, such as planks for the production of I beams, by means of hot-setting glues such as synthetic resin, an electric conductor is arranged in the glue and is heated by current passed therethrough or induced therein. The conductor may be a wire coil, wire gauze, a perforated plate, or a band with prongs or the like which are pressed into the jointed surfaces. The cross-section of the conductor may be varied to vary the heating effect. The surfaces of the workpieces may be recessed, dove-tailed, or roughened. Reference has been directed by the Comptroller to Specification 386,826, [Group V], and Austrian Specification 147,452.
Patent GB-1048653-A (GB)
Title: Method and apparatus applicable to the production of rod-like articles such as cigarettes
Inventor: KAEDING HEINZ
IPC: A24C5/34
Filed: 1961-07-17
Abstract: 1,048,653. Testing cigarettes. K. KÍRBER. Aug. 13, 1962 [July 7, 1961], No. 24631/61. Heading A2C. In an apparatus for producing and testing rod like tobacco articles, e.g. cigarettes, cigars, filter rods &c., means are provided for marking or mutilating faulty or substandard articles produced as a result of faults whereat in the production procedure in such manner as to ensure their rejection at the testing stage. A first device, Figs. 2, 4, is operative at the starting- up stage in production, e.g. after an interruption, and until the machinery reaches a satisfactory operating speed, groups G, Fig. 2, comprising two cigarettes end-to-end and an interposed double-length filter interconnected by a wrapping material wound around the filter, have their ends incised by cutters 60. The contact of a speed responsive device 67, e.g. a centrifugal switch, is then opened de-energizing a control magnet 64 and a rod 63 withdraws the cutters. The groups G are then fed from roll 12 into grooves 31 in a testing drum 13, Fig. 4, and air jets issuing from blow holes 32 cause the ends 57 to be removed by deflections 55, the removal of the remaining portions of the groups being assisted by air blown from holes 33. The testing drum is constructed to effect air blast rejection between inner guide bars 52 of filters 30 reaching the drum 13 on their own (due to stoppage for some reason of the cigarette feed), while cigarettes fed on their own are rejected outside guide bars 53. In a group G missing only a filter rod 30 air blast deforms the hollow wrapper tube for removal by deflection by guide bars 53, the remaining cigarettes being removed as before. Satisfactory groups G are retained by the guide bars 52, 53, 54 and suction applied to holes 34, 35 in the grooves 31. The outer ring 49 of the drum 13 is rotatably mounted by bearings 50 around a stationary end unit having annular suction and blower chambers 47, 40 supplied by ducts 48, 42 and communicating for blowing via 38, 39 with ducts 36, 37 leading to groove holes 32, 33, and with the same ducts and holes via a slot 41 at a later stage for blowing out empty grooves 31. Suction communication is via slots 45, 46 and ducts 43, 44 to groove holes 34, 35.
Patent GB-983811-A (GB)
Title: An electromagnetic horn-type radiator
IPC: H01Q13/02
Filed: 1961-07-07
Abstract: 983,811. Aerials. TELEFUNKEN PATENTVERWERTUNGS, -G.m.b.H. July 7, 1961 [July 9, 1960], No. 24654/61. Heading H4A. An electromagnetic horn radiator produces a directivity diagram which is independent of polarization and is characterized by additional hollow-tube radiators d or auxiliary funnels h connected to the radiator or its feed line g by coupling means which are dependent on polarization.
Patent GB-481444-A (GB)
Title: Improvements in relaxation oscillators for television receivers
IPC: H04N3/237
Filed: 1936-09-10
Abstract: 481,444. Television. RADIOAKT.- GES. D. S. LOEWE. Sept. 10, 1936, No. 24680. Convention date, Sept. 11, 1935. [Class 40 (iii)] A cathode ray is so deflected during its return stroke that it does not impinge on the field of the image. An additional potential is superposed on the potential from the image-frequency oscillator 2 during the return period of the linefrequency oscillator 1 such that the ray is deflected outside the edge of the image. The additional potential is generated by a discharge tube 8, which is ignited at the end of each scanning-line by the synchronizing signal and is quenched by a second discharge tube 9 in parallel, which is ignited through a powderediron cored transformer 10 by the potential peaks in the line-frequency oscillator at the beginning of the scanning-lines. The consequent drop of potential 'is such that both tubes cease to discharge. The additional potential is superposed on the image-frequency potential by a transformer 5 with a compressed powdered-iron core.
Patent GB-1528563-A (GB)
Title: Unsaturated peroxycarbonates
IPC: C07C409/38
Filed: 1977-06-14
Abstract: 1528563 Peroxycarbonates NIHON YUSHI KK 14 June 1977 [16 June 1976] 24688/77 Heading C2C [Also in Division C3] Novel peroxycarbonates of the formula wherein R 1  is a hydrogen atom or a C 1-4  alkyl group, R 2  and R 3  are C 1-4  alkyl groups and R 4  is a C 1-12  alkyl group or a C 3-12  cyoloalkyl group, are obtained (1) by reacting tertiary hydroperoxides H-O-O-CR 2 R 3 R 4  with chloroformates CH 2  = CR 1 CH 2 OCOCl, or (2) by reacting tertiary peroxychloroformates with allyl alcohol or 2-(C 1-4  alkyl)allyl alcohols CH 2  = CR 1 -CH 2 OH.
Patent GB-155536-A (GB)
Title: A new or improved manufacture of clothes hanger
IPC: A47G25/28
Filed: 1920-08-26
Abstract: 155,536. Shannon & Son, J., and Shannon, J. C. Aug. 26, 1920. Coat and like hangers.-A skeleton coat or like hanger is made of aluminium or aluminium alloy and comprises a shoulder-shape top member b and an integral cross-bar f. The upper surface of the member b and preferably both surfaces of the cross-bar f are slightly rounded.
Patent GB-1471533-A (GB)
Title: Internal combustion engines and their operation
IPC: F01L7/02
Filed: 1974-05-24
Abstract: 1471533 Rotary valve IC engines EXXON RESEARCH & ENG CO 24 May 1974 [24 May 1973] 24823/73 Heading F1B An I.C. engine comprises a piston and cylinder, a system to supply air/fuel mixture to the cylinder, means to ignite the mixture and means to exhaust the combusted products and supply means for an oxygen-containing gas operative to provide said gas at a pressure which is no greater than either (a) the maximum possible pressure of air/fuel charge in the cylinder before ignition of the charge or (b) a pressure, in atmospheres, at least equal to the volumetric compression ratio of the engine, comprising a chamber of fixed volume arranged to receive oxygen containing gas during part of the cycle, to confine the gas and to establish communication between the interior of the chamber and the interior of the cylinder initially at a point of the compression stroke which is substantially at the moment of ignition or when the pressure in the chamber is substantially equal to the pressure in the cylinder. Valve spool 36 is rotatably mounted between upper and lower parts 35 and 33 of the valve housing, and includes, in addition to an inlet duct 46 and an exhaust duct 48, a chamber 50 which communicates with the peripheral surface of the valve spool by a passage 51. The spool rotates clockwise as seen in Fig. 3. A compressed air duct 54 leads to a port 55 which communicates with passage 51  during the time taken for the spool to rotate through 20 degrees. Passage 51 is offset, in the axial direction of the spool, from the inlet and exhaust ducts.  Operation. At the moment when ignition occurs, spool 36 has turned to a position where passage 51 communicates with port 52, so that the burning air/fuel mixture in the cylinder compresses the air in chamber 50 to cylinder pressure. As the pressure falls during the expansion stroke, the burning mixture is diluted with air which ensures complete combustion. The exhaust port 49 and passage 51 communicate simultaneously with port 52 so that chamber 50 is vented. An additional vent, opposite port 55 and connected to a low-pressure zone may be provided to completely vent chamber 50. In a 4-cylinder in-line engine the spools are gear-driven from the crankshaft, adjacent spools rotating in opposite directions. The compressed air is provided by a singlestage reciprocating piston pump, providing air at  about 10 atmospheres and with an output of about 15% by volume of the swept volume of the engine.
Patent GB-774002-A (GB)
Title: Anchorage bolts
Inventor: JEBSON LAWRENCE ALAN
IPC: F16B13/08
Filed: 1954-08-26
Abstract: 774,002. Wall plugs &c. NEWTON & CO., Ltd., L. H. Aug. 26, 1955 [Aug. 26, 1954], No. 24833/54. Class 89 (1). Anchor - bolts comprising a rubber sleeve 12, Fig. 1, surrounding a bolt-stem 8 and compressed between the bolt-head 9, or an abutment 13 on the stem, and a nut 10, have the outer periphery of the sleeve formed with ribs 12a; Fig. 5, which may extend helically, axially or circumferentially. In a modification, the sleeve has studs 12b,. Fig. 7. Specification 685,643 is referred to.
Patent GB-487144-A (GB)
Title: Improvements relating to the production of cores for electric inductances
IPC: H01F1/20
Filed: 1936-09-11
Abstract: In producing magnetic cores from a mixture of finely divided magnetic material and a hardenable binding medium the mixture is compressed during moulding by two or more movable rams or plungers acting from two or more sides.  The plungers may act simultaneously or successively and preliminary pressing may be effected by one plunger alone.
Patent GB-942164-A (GB)
Title: Brazed or soldered joints
IPC: B23K1/20
Filed: 1961-07-10
Abstract: 942,164. Soldering. SULZER FRERES S.A. July 10, 1961 [Sept. 1, 1960], No. 24959/61. Heading B3R. In a brazed or soldered joint between two cylindrical members, one fits inside the other with a capillary gap between them filled by brazing metal or solder the larger diameter member has a terminal portion of greater internal diameter than the portion bounding the capillary gap and the terminal portion has at least one aperture in its wall for the introduction of the solder or brazing metal. A long tube 2 is introduced into the recessed end of a tube 1 and is brazed or soldered thereto over a circumferentially grooved area 4 by brass or solder introduced through apertures 5 in a portion 3 of larger internal diameter than the area 4.
Patent GB-532483-A (GB)
Title: Improvements to cocks and valves
IPC: F16K5/16
Filed: 1939-08-31
Abstract: 532,483. Valves. FAVART, L. F. Aug. 31, 1939, No. 25031. [Class 135] A plug-cock actuated by a screw threaded spindle separate from the plug has the plug and spindle so joined that while they move together axially the spindle can turn through a limited angle relative to the plug before the latter commences to rotate. In the form shown in Fig. 1 the spindle 11 has a screwthreaded part engaging a detachable cover 6 and is formed with a head 13 held in a cavity 14 in the larger end of the plug by a screwed ring 15 secured by a jam-nut 16. Ball bearings 17, 18 are interposed between the upper and lower surfaces of the head 13, the ring 15 and the bottom of the cavity 14. The larger end of the plug has an upstanding projection 19 engaging an arcuate slot 20 in the head 13 concentric with the axis of rotation whereby rotary movement is imparted to the plug. The open position is determined by the plug engaging the undersurface of the cover 6.
Patent GB-503064-A (GB)
Title: Improved picture hanger
IPC: A47G1/16
Filed: 1938-08-29
Abstract: 503,064. Picture hooks. URE, G. A. Aug. 29, 1938, No. 25269. [Class 89 (ii)] A picture hook 1 adapted to fit over a picture rail is made of a thermoplastic phenol-condensation product, and has at least one wire 3, for supporting the picture, embedded in it. Specification 261,317, [Class 89 (ii)], is referred to.
Patent GB-1480495-A (GB)
Title: Winding tool
IPC: A61C5/12
Filed: 1974-07-25
Abstract: 1480495 Coiling spirals H J LAZARUS 25 July 1974 [26 July 1973] 25288/76 Divided out of 1480494 Heading B3E A winding member 88 for tightening a preformed coil 36, provided on a dental matrix band having the subject of the parent Specification (see Division A5-A6) is generally frustoconical with a flat smaller diameter end face 100 and a plurality of rectilinear projections which extend between opposite ends. The projections may be unidirectional and have teeth 96. The projections may have chambers 94 where they adjoin the flat end face 100. In use the projections grip the interior of the coil when the member 88 is rotated in one direction for tightening the coil. The member 88 is mounted on one end of a flexible shaft which is rotated by a manually rotatable sleeve on a handle having a portion for holding in the palm of the hand.
Patent GB-1528998-A (GB)
Title: Electrical connecting method
IPC: H01R12/70
Filed: 1976-06-18
Abstract: 1528998 Electrical connections PRESSAC Ltd 3 June 1977 [18 June 1976] 25341/76 Heading H2E [Also in Division B3] An electrical connection is established between an electrically insulated conductive strip 5 and an electrical contact 12 in a socket member 11 by a crimpable strip 4 of flexible resilient electrically conductive material which pieces the strips at two spaced positions 6. The ends are then folded over to pierce the insulation to effect a second electrical connection between the positions 6. The resultant crimped joint 13 is inserted into socket member 11, an air channel 15 being formed between the contact 12 and the crimped strip to cool the connecting points 14<SP>1</SP>. As described, the crimpable strip has teeth (8) (Fig. 3a, not shown) along opposite edges to facilitate piercing, and transverse serrations (9) to give multipoint contact at the positions 6.
Patent GB-812555-A (GB)
Title: Improvements in or relating to electrical capacitors
IPC: H01G4/32
Filed: 1955-09-05
Abstract: 812,555. Capacitors. DUBILIER CONDENSER CO. (1925) Ltd. Sept. 5, 1955 [Oct. 27, 1954], No. 25415/55. Class 37. In a capacitor at least one electrode is constituted by metallizing covering the whole of one surface of a dielectric strip which is so folded over with the metallized surface inwards that one edge of the sheet, to which terminal connections are made, projects beyond the other. Fig. 1 shows a construction comprising two dielectric strips 10, 11 bearing metallizing 12, 13 and folded over so that metallized edges 14, 15 project from opposite edges of the assembly which is then wound into a roll. The projecting edges 14, 15 may be turned slightly during the folding operation to expose the metallizing more effectively to the metal spray or solder used in forming the end terminals of the capacitor. In an alternative construction, Fig. 4, a wound capacitor is constituted by a single folded dielectric strip 10 in conjunction with a metal foil 16. The invention may also be applied to capacitors wherein the strips are folded in zig-zag fashion to form a stack.
Patent GB-359626-A (GB)
Title: Improvements in or relating to navigational apparatus for use with leader cables and the like
IPC: G01S1/02
Filed: 1930-08-26
Abstract: 359,626. Leader gear for assisting navigation. COOCH, H., Royal Aircraft Establishment, South Farnborough, Hampshire. Aug. 26, 1930, No. 25449. Drawing to Specification. [Class 40 (v).] The Indicating means on aircraft &c., operated by a leader cable or the like, is combined with means for indicating banking, both the means being arranged and calibrated so that when the craft is on its correct course their pointers are adjacent or bear a readily comparable relationship. The " banking " indicator may be in the form of a " rate-of-turn " indicator as the former is proportional to the latter, and in a preferred embodiment the scales arc adjacent and between the axes of rotation of the pointers. Specification 198,090, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-487844-A (GB)
Title: Sheet metal and method of manufacture
IPC: B21B3/02
Filed: 1936-09-18
Abstract: 487,844. Annealing. COLD METAL PROCESS CO. Sept. 18, 1936, No. 25474. Void. Convention date, Sept. 20, 1935. [Class 72] [Also in Group XXII] Sheet metal particularly for use in deep drawing is cold rolled and then maintained for some time above the upper critical temperature of 1700‹ F. and then cooled at least until the A1 point is reached. The metal strip may be first plated with copper or other softer metal in a coating bath 11 and then is cold rolled with 80 per cent reduction to a thickness of from À001" to À035". It then passes through a 15' long furnace 15 above 1700‹ F. in a reducing atmosphere, preferably at a speed of 18' per minute and it then emerges to a cooling chamber 17 also with a reducing atmosphere. The speed of travel of the strip through the furnace affects the Olsen value, being plotted on Fig. 4 (not shown). After cooling, the metal may be box-annealed and normalized, but as the Rockwell hardness number is usually below 50-45, this process may be dispensed with. A cup drawn from the metal with a ratio of depth to diameter greater than À3 is free from ears.
Patent GB-817183-A (GB)
Title: An improved method and device for manufacturing packing boxes
Inventor: ROBERT BEETZ JACQUES
IPC: B31B3/46
Filed: 1956-08-22
Abstract: 817,183. Making boxes; angular bending. ALIUM S. A. Aug. 22, 1956 [June 25, 1956], No. 25626/56. Classes 83 (2) and 83 (4). [Also in Group XVII] A box is formed by folding a blank of thin sheet metal about a mandrel forcing it through a die, the blank being clamped against the mandrel by a member moving with it and operating elements to press all the side forming parts of the blank against the mandrel after it has passed through the die. The mandrel comprises a former 4 having mounted on it an ejector 7 and being spring connected to an operating rod 8. The die consists of a plate 2, which may have blank locating suction openings 22, supported by a frame 1. The clamping member 5 is urged upwardly by a spring 11a and retained by a stop 12. Side pressing plates 13 are pivoted on the frame 1 and carry rollers 18 engaged by the member 5 and portions 20 on its shaft 11. As the mandrel descends the blank 21 is partially folded in its passage through the plate 2, and towards the end of the stroke is engaged by the plates 13 and forced against the mandrel sides. The partially formed corner gussets are pressed by elements 24 moving inwards radially. After the mandrel has ceased to move, continued downward movement of the rod 8 causes cheeks 25 to fold over margins f to lie flat against the box sides and enclose part of the corner gussets. As the mandrel withdraws, the member 5 rises with it until checked by its stop 12. Further movement of the mandrel allows the ejector 7 to release the box.
Patent GB-1075494-A (GB)
Title: Anthranilic acid compounds and methods for their production
Filed: 1965-06-17
Abstract: Novel compounds of formula <FORM:1075494/C2/1> and carboxylate salts, (C1-C4)-alkyl esters, di-(C1-C4)-alkylamino-alkyl esters and pharmaceutically-acceptable acid addition and quaternary salts of the dialkylaminoalkyl esters where R1 is H, methyl or Cl; R2 is methyl or Cl and Z is a group having one of the following formula/sA <FORM:1075494/C2/2> or is a cyano group; wherein R3 is C1-C4 alkyl, phenyl or (C1-C4)-alkylphenyl; R4 is methyl or ethyl; R5 is methyl or ethyl and Y is an alkylene radical separating the O-atoms by at least 2 C-atoms are prepared by a variety of methods.  The principal method of preparation is by reaction of the two compounds of formula/sA <FORM:1075494/C2/3> <FORM:1075494/C2/4> wherein one of A and B is halogen and the other is amino and R is H, alkyl or a cation.  The Z group in these compounds may be changed into another Z group, prior to or following the above reaction, by conventional means. Esterification and salt formation at the carboxylic acid group usually comprises the final step where necessary.  Compounds of the last general formula above wherein B is amino are prepared by reduction of the corresponding compounds wherein B is nitro or if Z is the cyclic ketal group above by hydrolysis of the corresponding compounds wherein B is acetamido.  Other intermediates prepared include 3-acetamido - 2,4 - dimethylacetophenone and its ethylene ketal, 2,4-dimethyl-3,5-dinitropivalophenone, 5 - amino -2,4 - dimethyl - 3 - nitropivalophenone, 2,4 - dimethyl - 3 - nitropivalophenone, 2,4 - dichloro - 3 - nitrobenzophenone, 2,4,41 - trimethyl - 3 - nitrobenzophenone, 2,4-dichloro - 3 - nitrobenzonitrile and 2,4 - dimethyl-3-nitrobenzamide.