baber/WOPTO huggingface dataset:
Patent GB-1413014-A (GB)
Title: Screw extruder
IPC: B29C48/03
Filed: 1973-01-24
Abstract: 1413014 Venting extruder LOHMANN & STOLTERFOHT AG 24 Jan 1973 [24 Jan 1972] 3667/73 Heading B5A Atmospheric oxygen and moisture are removed from plastics or rubber materials during screw extrusion, via a vacuum chamber 16 which is located upstream of the inlet 3 from a material feed hopper 4, and is in communication with the interior of the extruder barrel 2 around the screw shaft, at 17, and which is located downstream of and sealed from the screw driving means 7 by sealing elements 8, 9, and a lip sealing element 10. The location of the sealing elements avoids both contamination of the material by sealing element lubricant, and wear of the elements caused by the material. The lip sealing element 10 acts as a lubricant stripping means during changing of the screw 1. The vacuum is applied by a pump to the chamber 16 at 22, via a dust filter 11 provided in a replaceable chamber closure 24, and a vacuum gauge 20 is provided. Coarse material particles are prevented from entering the chamber 16 by a screw thread 15. Continuous charging of the hopper with material is facilitated by the absence of an upper hopper closure, the vacuum being maintained by a column of powdered material in the hopper, e.g. of 2 to 3 m. height.
Patent GB-827503-A (GB)
Title: Process for de-inking printed waste paper
Inventor: KRODEL WILLIAM JOHN
IPC: D21C5/02
Filed: 1956-02-06
Abstract: Waste printed newsprint &c. is de-inked for re-use by shredding and forming an aqueous slurry therefrom, adding a detergent, e.g. C-cetyl betaine or a sulphonated ester of, or an amino acid derivative of, an alcohol of 16 to 18 carbon atoms, to emulsify the ink particles, and separating them by adding a water-soluble salt yielding an ion of valency 3 or more, e.g. a sodium phosphate, a cerium or a thorium nitrate, or potassium ferrocyanide, to induce electrostatic charges on the ink particles and on the paper fibres of the same sign but at least four times as great in magnitude on the one as on the other, the slurry being maintained at up to 195 DEG  F. for 0.5-2 hours whilst agitating it. The ink particles are then skimmed off.  An electromotive force of 1.8 to 2.4 volts per inch of linear separation between two spaced electrodes in contact with the slurry may be applied to complete the separation of the ink particles.  After washing the fibre, it may be treated with chlorine in water or dilute hydrochloric or acetic acid.
Patent GB-1089761-A (GB)
Title: Improvements relating to ladders
Inventor: HOGBEN CYRIL WILLIAM
IPC: E06C7/08
Filed: 1963-01-29
Abstract: 1,089,761. Ladders. RACOLE TRADING & MANUFACTURING CO. Ltd. April 24, 1964 [Jan. 29, 1963], No. 3685/63. Heading A6L. A ladder stile comprises two parallel tubes connected by clamps each in halves 1, 2 and in bores in parts 5 of which the rungs are engaged. The clamp halves have clamp parts 3, 4 at the ends, the part 3 extending a greater distance round the circumference of a stile tube than the part 4 and inside which are studs 6, 7 engaging holes in the stile tubes. A pin in a bore 8 at the junction of the two halves locks the clamp on the stiles.
Patent GB-682669-A (GB)
Title: Improvements in and relating to book binding machinery
IPC: B42C19/08
Filed: 1949-02-10
Abstract: 682,669. Bookbinding machines. BURN & CO., Ltd., J., and DAVIES, J. T. Feb. 7, 1950. [Feb. 10, 1949] No. 3686/49. Class 16. [Also in Group XXX] A bookbinding machine M, e.g. for lining, backing and casing-in operations, comprises an intermittently-driven conveyer S which supplies books B, loaded on to it in bulk, broadside-on to a conveyer F which feeds them through the machine one-by-one, the feed conveyer F having a stationary base 1.0 and a number of reciprocated pushers 18 which are spring-loaded so as to be capable of yielding when moving away from the machine but are unyielding during their movement towards the machine. The pushers 18 project through a slot in an adjustable side wall 12 of a pair of walls constituting a feed channel, and are pivotally mounted on a member 16 connected by a link 29 to a sleeve 25 reciprocated on a guide rod 27 by a crank and connecting-rod mechanism. To prevent damage should jamming occur on the conveyer F, the connection between the link 29 and member 16 is a releasable one. The link 29 which is of springy material normally has its end held by a bridge piece 99 in a groove 93 on a pillar 89 fixed to the member 16, and a spring- pressed plunger 90 engages a recess in the link. If a jam prevents forward movement of the member 16, the link 29 will move out of the groove 93 and spring upwardly clear of the pillar 89. As the foremost book on the conveyer S is moved transversely by the conveyer F, the next book has a tendency to fall forward and this is prevented by a spring-pressed plunger 80. A plate 92 adjustably mounted on a rod 94 on the member 16 is provided to prevent any rise of the rearmost top edge of the book during its first forward movement on the conveyer F. The plate is pivoted at 96 so that it can yield in the horizontal plane against spring action should a tilted book be in its path on its movement away from the machine. The conveyer S slopes downwardly towards the conveyer F and has side walls 72, 74, one of which is adjusted according to the size of book.
Patent GB-1357546-A (GB)
Title: Vehicle lamps
IPC: F21V17/00
Filed: 1971-02-02
Abstract: 1357546 Vehicle lamp FLEXIBLE LAMPS Ltd 2 Feb 1972 [2 Feb 1971] 3701/71 Heading F4R The rear lamp cluster for a vehicle comprises a moulded transparent plastics outer shell 17 mounted on a rubber base 10 and at least one, e.g. two 18, 19 as shown, inner shell formed with integrally moulded lens formations 28, 29 which is held in an operative position against the inner surface of outer shell 17 and wherein the lower edge 35 of the inner shell is spaced a distance; e.g. at least 3-5 mm., from the adjacent rim of base 10, the holding means for the inner shell being capable of yielding to permit the movement of the inner shell towards the base. Thus upon a minor impact on the outer shell 17, sufficient to break it, the inner shells 18, 19 are permitted to move inwards towards the base and may thus escape damage. Thus the relatively cheap outer shell only need be replaced. Amber inner shell 18 and red inner shell 19 which may have a red reflecting or a non-reflecting insert 20, have slits 30 at their corners so that their sides are resilient and can frictionally engage the inner surface of outer shell 17. To assist in locating the inner shells in their operative positions a narrow band 37 extends around the inner surface of the outer shell. Below band 37 the side walls of outer shell 17 are flared to facilitate the movement of the inner shells under impact. The lipped lower edge 21 of outer shell 17 engages in a corresponding peripheral groove 22 in base 10, and the outer shell may be moulded from a clear acrylic or polycarbonate plastics material. Supported on a printed circuit board 11 from base 10 are direction indicator lamp 24, tail lamp 25, stop lamp 26 and number-plate illuminating lamp 27.
Patent GB-432901-A (GB)
Title: Improvements in or relating to nut locking devices
IPC: F16B39/06
Filed: 1934-02-05
Abstract: 432,901. Locking nuts. BOITEL, A. F., 168, Kaiserallee, Wilmersdorf, and AGAHD, W., 5, Joachimsthaler Strasse, Charlottenburg, both in Berlin. Feb. 5, 1934, No. 3758. Addition to 405,674. [Class 89 (i)] In a nut-locking device according to the parent Specification the nut has a recess 11 midway in its depth formed to receive the end 10 of the locking member. In a modification, Fig. 3, the locking wire is housed in a recess 15 in the surface of the bolt shank, and has its end 17 bent to enter a recess in the side of the bolt head.
Patent GB-791985-A (GB)
Title: Improvements in or relating to electric transformers
Inventor: MEE SAMUEL NEVILLE SHAW
IPC: H01F27/40
Filed: 1955-02-09
Abstract: 791,985. Transformers. PARMEKO, Ltd. Feb. 8, 1956 [Feb. 9, 1955], No. 3839/55. Class 38 (2). [Also in Group XXXVII] An electric transformer housed in a hermetically sealed container 1 has a safety switch device incorporated therewith, the device comprising a micro-switch 6 carried by a U-shaped channel member 4 secured to the container 1 such that upon a dangerous rise of pressure in the container the switch is operated by the subsequent deformation of a wall thereof, the operation of the switch being arranged to disconnect the primary winding of the transformer from the supply.
Patent GB-439395-A (GB)
Title: Improvements in handle guard for well casing elevators
IPC: E21B19/06
Filed: 1935-02-06
Abstract: 439,395. Gripping-devices for lifting well-casings &c. BYRON JACKSON CO., 2150, Slauson Avenue, Los Angeles, U.S.A. Feb. 6, 1935, No. 3872. Convention date, Aug. 24, 1934. [Class 78 (iv)] [See also Group XXI] Gripping-devices, for raising well-casings, drill pipes, and the like, of the kind in which a pair of hinged members encircle the pipe or casing and are latched together at their free ends, are fitted with operating-handles provided with guards to prevent the fingers of the operator being caught between the handles and the links of the supporting chain. The handles 14<a>, which are integral with and project forwardly from the two hinged members 2, 3, are furnished with the laterally-projecting spurs 16 which are hollowed on the side near to the hand and rounded convexly on the reverse side to turn the supporting links 11 away from the hand. A tapered strengthening- rib 21 is provided on the under side of each handle. The device is fitted with pivoted latching-mechanism 22 and with locking- mechanism 14 for securing the suspension links, as described in Specification 439,396.
Patent GB-589544-A (GB)
Title: Improvements in and relating to methods and apparatus for treating liquid spray witha gaseous medium
IPC: F26B17/24
Filed: 1942-03-24
Abstract: In processes and apparatus for drying liquids, solutions, colloidal suspensions, slurries, e.g., blood, protein solutions, milk, soaps, of the kind in which the solution is sprayed into the upper part of a closed chamber into contact with a primary supply of drying medium, e.g., air fed centrally to the upper part of the chamber, the dried material and drying medium being removed together from the lower part of the chamber, while one or more secondary streams of gases are also fed into the chamber, the secondary stream is supplied in a direction opposed to the turbulences formed by the primary air currents e.g., in a direction upwardly along the walls of the chamber or through the apex of a conical bottom closing the chamber.  In Fig. 1 the liquid to be dried is sprayed through a rotating nozzle 1 against a current of drying air fed through a centrally disposed conduit 4 while a portion of the air containing dried particles is withdrawn through a conduit 15 with an annular inlet arranged round the conduit 4 and is returned to <PICT:0589544/III/1> <PICT:0589544/III/2> <PICT:0589544/III/3> the chamber through a pipe 7.  The dried suspension is removed through pipe 5.  In Fig. 2 the secondary stream is withdrawn through pipe 7 and readmitted through a pipe 28 at the base of a cone 9.  The complete drying plant, Fig. 3, comprises a drying chamber from which the dried product is pumped through separators 20, 21 excess air being vented at 23 while the remainder is recirculated through line 22 in admixture with fresh air drawn in through inlet 24.  The secondary stream is withdrawn through line 7 by a propeller 16 and reintroduced through line 18.
Patent GB-414396-A (GB)
Title: Improvements in warp beaming machines
IPC: D02H3/00
Filed: 1934-02-06
Abstract: 414,396. Beaming yarns. REINERS, W., (trading as SCHLAFHORST & CO., W.), 48, Rheyderstrasse, Gladbach, Munich, Germany. Feb. 6, 1934, No. 3931. Convention date, Feb. 8, 1933. [Class 142 (iv).] Relates to machined for beaming warps in which the bearings 2 of the beam move on guides and the beam is driven by contact of the yarn thereon with a frictional driving drum 3. A detent device 13, 14 is provided to restrain the bearings 2 from undesired movement towards the drum 3 while not imposing restraint on movement away from it. The bearings may slide on curved guides 4, the curvature compensating for the varying size and weight of the yarn package 1. The beam is held against the drum 3 by chains 5 and a weight 6. In a modification, the guides are straight and horizontal, and the bearings 2 carry pins working in slotted weighted bellcrank arms which also carry the pawls 14. In another form, the bearings 2 work on straight horizontal guides 4 and have pawls 14 engaging straight horizontal racks. The detents may be replaced by mechanically equivalent devices. Specification 301,903, [Class 142 (iv)], is referred to.
Patent GB-345752-A (GB)
Title: Improvements in easy chairs and the like
IPC: A47C3/025
Filed: 1930-02-06
Abstract: 345,752. Spring-supported seats. SUMMERS, C. J., 44, St. Thomas Road, South Hackney, London. Feb. 6, 1930, No. 4083. [Class 52 (ii).] The seatsupporting framework of a chair is hinged at the front, at 28, to the base 10, 11, and is suspended at its rear upon tension springs 31 each carried directly by an upstanding bracket 29 secured to the base and disposed outside the side member 18 of the seat portion. Excess upward movement of the seat may be prevented by strips of webbing 32, or by buffers secured to the inner faces of the brackets 29.
Patent GB-676775-A (GB)
Title: Improvements in or relating to wheeled vehicles for use with rail trackways
Inventor: HAGLEY RICHARD ERNEST
IPC: E01B25/28
Filed: 1949-02-15
Abstract: 676,775. Guiding motor vehicles. BROCKHOUSE & CO., Ltd., J. Feb. 13, 1950 [Feb. 15, 1949], No. 4086/49. Drawings to Specification. Classes 79(i) and 79(v) The subject-matter of this Specification is identical with that described in Specification 676,774 but the claims differ. Specification 642,699 also is referred to.
Patent GB-303671-A (GB)
Title: Improvements relating to appliances for milling screw-threads
IPC: B23G1/32
Filed: 1928-02-10
Abstract: 303,671. Bayliss, Wiley, & Co., Ltd., and Bayliss, C. T. Feb. 10, 1928. Milling screws.-In a machine for simultaneously milling a number of screw threads upon an article, particularly for forming right and left hand threads upon respective opposite ends of a free wheel cycle clutch, two axially aligned milling-cutters 13, 14, are advanced axially in opposite directions while the work is correspondingly rotated through slightly more than one revolution, the cutting being the automatically stopped. A main shaft 5 driven from belt pulleys 6 carries gear wheels 7, 8 driving the cutter spindles 11, 12 respectively, the cutters being provided with rings of teeth corresponding in number to the number of threads to be cut. The work is screwed onto the end 18 of a rod 17 passing through a hollow work-spindle 15 which is mounted in bearings 59 on a cross slide 58 and is driven from a pulley 40 through worm rearing 37, 38. intermediate shaft 24, bevel gearing 22, 23, splined shaft 21 and bevel gearing 19. The shaft 24 carries gears 26, 25. which drive right- and left-hand threaded bushes 30, 29 respectively, these bushes engaging in fixed nuts so as to impart axial feed to the cutter spindles in timed relation to the work rotation. For effecting the automatic stoppage of the work on comnletion of the operation, the housing of the worm shaft 39 is pivoted at 42 and has limited angular movement determined by a pin-and-slot 65. The worm is held in engagement with its wheel by the engagement of the end 45 of a pivoted latch lever 46 with a pin 44 on the worm shaft housing. The upper end of the lever coacts with an arm 51 pivoted to the worm wheel. At the start of the operation, the parts are brought to the position shown in Fig. 6 and the worm is engaged. On clockwise rotation of the worm wheel the arm 51 is first moved by a spring 4 from an upper pin 52 to a lower pin 53 and the worm wheel thus moves slightly more than a revolution before the parts reach the position where the arm engages the latch lever to disengage the worm-shaft. For positioning a new work piece, the slide 58 is withdrawn bv a hand wheel 60 and its replacement in the cutter-engaging position is determined by a stop 62.
Patent GB-463472-A (GB)
Title: Process of imparting hydrophobic properties to cellulose fibres
IPC: D06M15/423
Filed: 1935-06-21
Abstract: Cellulose fibres are rendered hydrophobe by incorporating therewith a phenol containing at least one aliphatic or cycloaliphatic residue having at least six carbon atoms and treating the fibres with an aliphatic aldehyde.  The phenol and the aldehyde treatments may be effected simultaneously, or their condensation product may be used directly, and the treated fibres subjected to heat treatment.  The phenol or the condensation product may be added to the spinning solution.  The condensation may be effected in the presence of substances of acid or alkaline reaction, e.g. acetic or lactic acid, sodium bisulphite, sodium carbonate, or borax.  Suitable phenols are isododecylphenol, di-isohexylphenol, and iso-octyl cresol.  Suitable aldehydes are formaldehyde or glyoxal.  If a condensation product is employed for the treatment, e.g. the methylol compounds, the aftertreatment with the aldehyde may be omitted, a simple heating sufficing.  In an example, cellulose fibres are saturated with a solution of the phenol in an organic solvent, e.g. pyridine or acetone, or in an aqueous emulsion of the phenol; after drying, they are exposed to the action of formaldehyde of less than 5 per cent concentration, or the formaldehyde may be added to the impregnating solution, whereby a subsequent heating is sufficient. Samples have been furnished under Sect. 2 (5).
Patent GB-1525335-A (GB)
Title: Method of forming homogeneously oriented film of nematic liquid crystal
IPC: G02F1/1337
Filed: 1976-02-03
Abstract: 1525335 Aligning liquid crystals V S BANNIKOV M K BERESTENKO V A BYKOV I V MYAGKOV and P S SOTNIKOV 3 Feb 1976 04215/76 Heading G2F A method of forming a homogeneously oriented layer of nematic liquid crystal between a pair of spaced plates comprises (i) forming a monomolecular layer of a surfactant at a liquid/gas interface, with all the long axes of the essentially linear molecules parallel, and with the molecules packed as close as possible under the influence of a low order mechanical force, the surfactant being a water-insoluble compound of the Formula: in which R is C n H (2n   +   2k-m-1) Hal m , n is an integer from 12 to 37 subject to the proviso below, m is greater than or equal to 0 and less than or equal to (2 n  + 2 k -1), k is greater than or equal to -3 and less than or equal to 1, Hal is F, Cl, or Br,  X is =CH 2 , =C=O, =O, =S, -CH=CH-, or =C=CH 2 , b is an integer from 0 to 5, and Y is -OH, -CO 2 H, -SO 3 H, -PO 3 H 2 , provided that n is at least 18 when Y is -SO 3 H, -PO 3 H 2  or -Si(OCH 3 ) 3 , or a water-soluble polyvinyl alcohol or derivative thereof of the Formula: in which 20y # x # 1000, and Z is -H, -COCH 3 , -COCF 3 , or -CH 2 -CH=CH 2  (ii) passing a pair of spaced plates through the interface from the liquid phase to the gas phase so that the packed layer of surfactant is transferred to the surfaces of the plates, (iii) heating the coated plates at a temperature of from 80 to 180‹C, and (iv) introducing a nematic liquid crystal into the space between the plates. The surfactant layers formed on the plates may be subjected to ultraviolet irradiation to effect cross linking.
Patent GB-245299-A (GB)
Title: Improvements relating to tensile testing machines
IPC: G01N3/10
Filed: 1925-02-16
Abstract: 245,299. Richards, G. B. Feb. 16, 1925. Testing physical qualities of materials.-Comprises a machine in which a plurality of vertical cylinders d rest on a bed a, the rams e moving through the upper ends of the cylinders being connected by a cross-head f to which and to the bed are connected centrally arranged specimen grips i, means being provided whereby the cylinders communicate with each other and with a pump and discharge valve. The rams are hollow and communicate with each other through a pipe g, a pressure gauge h on this pipe indicating the pull on the specimen j. The pump b which is hand or motor driven drains oil or other fluid from the reservoir formed by the hollow bed a. The shanks of the grips i are given a certain spherical freedom to avoid other than a direct pull. Instead of the pipe g a passage may be formed in the cross-head f.
Patent GB-1115443-A (GB)
Title: Improvements in and relating to friction pad assemblies for vehicle brakes
Inventor: KNIGHT FREDERICK JAMES SIDNEY
IPC: F16D69/04
Filed: 1965-02-02
Abstract: 1,115,443. Pads for disc brakes. GIRLING Ltd. 28 Jan., 1966 [2 Feb., 1965], No. 4407/65. Heading F2E. A friction pad assembly, particularly for a disc brake, comprises a backing plate which is imperforate save for a pair of location holes and to which is secured either by spot welding or by screws a perforated plate or a piece of expanded metal to which friction material is subsequently applied by moulding, so that the resulting pad is firmly attached by integral spigots of the friction material where it has flowed into the apertures in the perforated plate or expanded metal. Where expanded metal is used the friction material may be allowed to join up between the metal and the backing plate, whereby the expanded metal becomes an insert in the friction material.
Patent GB-1423375-A (GB)
Title: Filtering device
IPC: B01D46/18
Filed: 1973-01-29
Abstract: 1423375 Air filter apparatus spool AMERICAN AIR FILTER CO INC 29 Jan 1973 [28 Jan 1972] 4446/73 Heading BIT [Also in Division F2]  A spool for supporting a roll of filter web in a moving web air filter comprises a hollow spindle 18 having end plates 16 and 17 which are held in place by mandrels 21 inserted in the ends of the spindle. The mandrels are designed to frictionally engage the spindle and have internal tongues 31 for coupling to drive means to rotate the spool. A wire rod 24 inserted in slots 22 and 23 holds the web end onto the spool. The mandrels may have flanges 29 to hold the end plates 16 and 17.