baber/WOPTO huggingface dataset:
Patent GB-708118-A (GB)
Title: Improvements in or relating to the treatment of one substance with another of which at least one is a liquid
Inventor: REED JOHN ALVA
IPC: C08G12/12
Filed: 1951-03-01
Abstract: <PICT:0708118/IV(c)/1> In a method of treating a liquid or solid substance with a liquid, an apparatus is provided wherein the liquid is caused to flow in a closed circuit in which it moves downwardly in a central column from which it is centrifuged and then constrained to ascend in a more or less annular stream whereupon it is constrained to flow inwardly and downwardly in a second more or less annular stream and then to flow inwardly and downwardly to rejoin said central column from which it is recentrifuged.  A cylindrical tank 1, a concentric partition 3 and a central passage element 6, define outer and inner flow chambers 4, 7, the element 6 having openings 8 through which the chamber 7 communicates with the central passage.  A centrifugal impellor 16 is mounted concentrically below a lower annular partition 5 which extends between the partition 3 and the element 6, and draws directly from the lower end of the element 6. The impellor 16 communicates peripherally with the chamber 4 through an annular zone having stationary vanes 21.  In operation liquid, e.g. formalin, is caused to move outwardly from the impellor and to ascend through the chamber 4 and pass over the partition 3 to flow downwardly in the chamber 7 as a more or less annular stream and pass through openings 8 into the element 6 where it again flows downwardly into the impellor and is recirculated.  A substance to be mixed with the liquid, e.g. urea, is introduced into the circuit by way of a shoot 23 opening into the central passage element 6.  A coil 24 in the chamber 4 is adapted to carry heating or cooling fluid.  The coil 24 is supported by baffles 27 which restrain the liquid in the chamber 4 from rotational movement.  In the preparation of urea formaldehyde condensation products the impellor may be rotated at about 300 r.p.m.  The apparatus may be used for the dissolving of caustic soda in butanol to produce an alkaline reagent.  A sieve or filter may be provided immediately surrounding the impellor, attached to or separate from the impellor, to hold back fragments of soluble matter so that they are dissolved by the action of liquid moving at relatively high speed.  A cage or basket of annular form having a perforated top and bottom for the passage of washing or other liquid, may be located in one of the flow chambers 4 or 7 for the liquid treatment of manufactured goods, e.g. socks.  Preferably the liquid is caused to flow in a turbulent manner during its ascent in the chamber 4 and such turbulent flow may be achieved by adjusting the rate of centrifuging of the liquid.
Patent GB-909704-A (GB)
Title: Rigid vinyl halide polymer compositions containing polyurethane elastomers
IPC: C08L27/02
Filed: 1958-02-12
Abstract: A rigid, impact-resistant, age-resistant, thermoplastic composition comprises:- (a) 47 to 77 parts (by weight) of a rigid vinyl halide polymer; (b) 13 to 35 parts of a resinous copolymer of (i) styrene or nuclear or alpha substituted styrenes with (ii) 15 to 40 wt. per cent of a copolymerizable acrylonitrile containing less than 6 aliphatic carbon atoms; and (c) 10 to 18 parts of a rubbery polyurethane reaction product of an organic di- or tri-isocyanate and a hydroxy terminated polyol having a molecular weight of at least 500 and only -C-C- or -C-O- linkages in the molecular chain.  The parts of (a)+(b)+(c) should total 100 ignoring pigments, stabilizers and other additives.  Halide polymers specified are polyvinyl chloride, bromide, fluoride and iodide and vinyl chloride/vinyl acetate copolymers.  The copolymer (b) may be derived from styrene, 3,4-dichlorostyrene, dimethyl styrene, alpha methyl styrene, alpha methoxy styrene of 3,4-dichloroalphamethyl styrene and acrylonitrile or alpha halogen-or C1-4 alkyl-substituted acrylonitrile.  The polyurethane (c) may be prepared from a hydroxy terminated polyester or polyether, e.g. poly(ethylene-propylene) adipate, poly(ethylenebutylene) sebacate, or polytetramethylene or polyethylene ether glycol and p,p1-disocyanato diphenyl methane, 2,4-tolylene diisocyanate, naphthalene-1,5-diisocyanate and hexamethylene diisocyanate.  The preferred blending technique is to dry blend the vinyl halide polymer with pigments and stabilizers; mill this blend into the copolymer at 300 DEG  to 350 DEG C., and then to mill in the polyurethane at 200 DEG  to 400 DEG C. Specification 694,978 is referred to.  Reference has been directed by the Comptroller to Specification 844,240.
Patent GB-470619-A (GB)
Title: Improvements in or relating to apparatus for changing the frequency of electric oscillatory currents
IPC: H03C1/58
Filed: 1937-02-19
Abstract: 470,619. Modulating systems. SIEMENS & HALSKE AKT.-GES. Feb. 19, 1937, No. 5039. Convention date, Feb. 20, 1936. [Class 40 (v)] Relates to systems comprising rectifiers or other non-linear resistances whereby an input carrier frequency p and an input modulating frequency q are made to yield an output frequency (np +q) where n is an integer, and consists in so biassing the rectifiers in relation to the amplitude of the carrier as to enhance an output component for which n is even, or to suppress one for which n is odd. In the known arrangement shown in Fig. 1, the amplitude of the carrier frequency p is much greater than that of the modulating frequency q, so that the state of the rectifiers D1, D2 is determined by p and not q. If the carrier has a sinusoidal wave form it will cause the conductivity G of an ideal rectifier to have a rectangular wave-form, Fig. 3, in which the complete cycle (t+t') is 2#p while the ratio t : t' depends on the D.C. bias applied to the rectifiers, in relation to the amplitude of the carrier. If the modulating voltage is proportional to sin qt, the output voltage will be proportional to G sin qt ; and if G, Fig. 3, is expanded as a Fourier series in terms of p, the modulation products will contain terms having frequencies (np +q) where n is any integer. The Specification shows that the amplitude of a component of given frequency can be increased or reduced by suitably choosing the ratio t : t', and according to the invention the conducting period t is made'unequal to the nonconducting period t' and the ratio is so chosen as to suppress a component for which n is odd or to enhance a component for which n is even. The relative magnitudes of t and t' are adjusted by biassing the rectifiers, Fig. 5 (not shown), and this can be done by inserting in series with the secondary S2, Fig. 1, a suitable resistance shunted by a condenser, so as to derive a biassing voltage from the rectified carrier, Fig. 4 (not shown). In a modification. Figs. 6 and 7 (not shown), the rectifiers D1, D2 may be replaced by pairs of oppositely directed rectifiers. All components for which n is odd, and (by a suitable choice of the ratio t t') all components other than those for which n = (4r + 2), where r is an integer, can be eliminated by this arrangement. Specification 428,293 is referred to.
Patent GB-976895-A (GB)
Title: Boiler having a pivotally mounted element through which a medium flows
IPC: F23M7/04
Filed: 1963-02-07
Abstract: 976,895. Doors for boilers. YGNIS S.A. Feb. 7, 1963 [Feb. 26, 1962; May 9, 1962], No. 5048/63. Heading F2P. [Also in Division E2] A boiler has a pivotally-mounted component 2 through which a fluid is intended to flow, wherein the pivotal mounting is a threepart hinge comprising a first part 7, 8 fixed to the boiler, a rotary second part 5, 6 which supports the component 2 and_permits fluid to flow to or from the component, and a fixed third part 15, 16 which is connected to a fluid supply or discharge conduit 3, 4, 17, 18. The second and third parts are in fluid-communication with one another in all rotary positions of the second part and the first fixed part takes the weight of the component. In the construction shown a spigot 46 at one end of the second part is housed in a bearing box 47 of the first part. The spigot 46 is provided with a groove 45 which co-operates with the equispaced screws of the bearing box and a sealing ring groove 48. The second part is formed at its other end with a trunnion 34 which is held in a bushing 36 of a flange 11 by a flanged screw and pin 43. This friction bearing may be replaced by a ball bearing (Fig. 3a, not shown). In a modification the bearing sealing means comprises a stack of sealing rings held between a shoulder of the third part and an adjusting ring. The adjusting ring is depressed against the sealing rings by the wedge surface of a number of part annular segments, the segments being moved radially of the hinge by screws of the third part (Fig. 5, not shown). In a further embodiment (Figs. 6, 7, not shown) the second part is of larger diameter than the third part, the former being closed by a divided ring the inner periphery of which co-operates with a groove of the third part. A plurality of adjusting screws housed in the divided ring act against the stack of sealing rings placed between the second and third parts. The end of each screw which is in contact with the sealing rings may be of triangular or part circular cross-section (Figs. 6a, 6b, not shown).
Patent GB-730999-A (GB)
Title: Improved hem turning device
IPC: D05B35/02
Filed: 1953-02-24
Abstract: 730,999. Sewing-machines. BLEACHERS ASSOCIATION, Ltd., and BARTLEY, L. Feb. 16, 1954 [Feb. 24, 1953], No. 5082/53. Class 112. In a hem-turning device for use with sewing- machines, two hem-turning elements for forming unequal widths of hem are joined to extend to either side of a pivot on the sewing-machine, and at least one of the elements is retractable in order to prevent fouling parts of the sewing- machine during movement of the device about the pivot. A shown, elements 1 and 2 for respectively forming a narrow and a wide hem are adjustably secured by screws and nuts 5 to the opposite ends of a baseplate 3 consisting of two portions hinged together at 4. The device is pivoted to the bed 7 of the sewing-machine by a clamping screw 6 which passes through the baseplate and a slot in the element 2. Guide fingers 9 are provided. To interchange the elements, screw 6 is slackened, element 1 is raised to the vertical position, as shown in chain lines, and the device is then rotated in the clockwise direction. In alternative constructions the pivot passes through a slot in the baseplate, and spring means are provided for pressing the device against the bed of the sewing-machine.
Patent GB-111232-A (GB)
Title: Improvements in Machines for Burnishing the Edges of the Soles of Boots and Shoes.
Inventor: BEAUDRY ZOTIQUE
IPC: A43D93/00
Filed: 1917-04-11
Abstract: 111,232. Beaudry, Z. April 11, 1917. Edge-setting; ornamenting.-In a machine for burnishing or setting the edges of shoe soles and simultaneously indenting their upper edges a shank tool 45 and a combined setting and indenting tool 23, 28 are mounted in a carrier 19, the stem 18 of which is journaled in a rocker frame 15 adapted to be oscillated about a shaft 16 through connexions 12, 13, 14 with a driving-shaft 11. The carrier 19 is formed with a cross bar 21 fitting in a groove 22 in an arm 17 of the rocker frame, and is normally upheld by a spring. The indenting tool 28 is rotatably mounted on a stud 30 fixed in the tool 23, the shank 24 of which is adapted to rock to a limited extent in a bearing 25 formed on a tool-holder 26, which is pivoted for limited rocking movement about a stud 27 fast to the cross bar 21; the tool 23 is held in place by a spring-pressed latch 35. The shank tool 45 is mounted in a similar manner to the tool 23. During operation the tools 23, 45 tip and rock so as to keep their working faces tangential to, and in alinement with, the edge of the sole.
Patent GB-1135193-A (GB)
Title: Dust suppression on mineral mining machines
Inventor: DAVIES BARRIE
IPC: E21C35/187
Filed: 1965-02-05
Abstract: 1,135,193. Dust suppression in mines. COAL INDUSTRY (PATENTS) Ltd. 1 Feb., 1966 [5 Feb., 1965], No. 5122/65. Heading E1F. Fluid for suppressing dust generated by the cutting tools of a rotary cutter unit of a mining machine is supplied by an outlet aperture having a part of its boundary wall formed by the unit or by some other part of the machine which vibrates during use. The part of the wall is formed by the tool 2 and the remaining part by a groove 9 in a block 5 inserted in the end of a fluid supply duct 7. The vibrations of the part dislodge or crush particles tending to block the aperture.
Patent GB-1268432-A (GB)
Title: Portable container with a slidable drawer
Inventor: WHITE IRVINE EVERARD
IPC: A45C11/00
Filed: 1969-01-30
Abstract: 1,268,432. Shell and drawer container. E. ILLINGWORTH & CO. Ltd. 19 Jan., 1970 [30 Jan., 1969], No. 5170/69. Headings B8C and B8P. A drawer and shell container for tobacco plugs 26 is provided with at least one drawer comprising a pocket connected to a friction slide 13 by an integral hinge biased to cause the pocket to pivot downwardly when opened. As shown, the container has two drawers formed from two pockets 10, 11 interconnected by the slide 13 via hinges 14, 15, the slide being provided with a partition 17, a base 12 and side walls 18, 19. The pockets 10, 11 are moulded at right angles to the slide 13 (Fig. 1) so that when the loaded drawers are slid into a shell, the hinges 14, 15 are biased, and the slide 13 is urged upwardly against the shell's cutaway top wall 21 to increase its frictional contact. Each pocket may be provided with articlesupporting ribs 20, flexible tabs, cellular inserts (32, Fig. 7) or cells formed by overlapping two adjacent troughed sections and bonding along the abutting edges (Figs. 8, 9). The shell and the drawers may both be of plastics material, e.g. polypropylene, polystyrene, and the shell may be of box-board. The inserts may be sealed and be of plastics material, e.g. polystyrene.
Patent GB-565034-A (GB)
Title: Improvements in or relating to machines adapted to perform flattening or straightening operations upon welts of lasted welted shoes and comprising beating means
IPC: A43D49/00
Filed: 1943-04-01
Abstract: 565,034. Machines for welts. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). April 1, 1943, No. 5203. [Class 17 (i)] In a machine for flattening or straightening welts of lasted welted shoes, the work is fed by driven rolls engaging opposite faces of the welt. A welt slashing tool is provided. The work is supported by a roll 16 having a conical face 29 and a bevelled edge 31 adapted to enter the welt crease. The opposite face of the welt is engaged by a feed wheel 18 driven at some 60 r.p.m. The roll 16 is urged upwardly by a spring and depressed by a treadle for work changing. Adjacent the upper feed roll is an inseam beater driven at some 2500 r.p.m. and comprising four beating members 78 each clamped in radially adjustable position by a bolt 90. Each member has an inclined slot engaged by a pin 84 on a disc 86 clamped in adjusted position by a bolt 88. A slashing knife 120 is driven by a link 128 engaging an arc-shaped groove 132 in an arm oscillated by an eccentric 138. The upper end of the groove is concentric with the pivot of the arm. When it is desired to slash the under face of the welt, e.g. at the toe end, a treadle is depressed swing- ing a lever 142 and moving the upper end of the link 128 along the groove 132 to a position determined by an adjustable stop.
Patent GB-511776-A (GB)
Title: Improvements in and relating to rotary pumps
IPC: F01C11/00
Filed: 1938-02-21
Abstract: 511,776. Rotary pumps. DUTREY, A. Feb. 21, 1938, No. 5330. [Class 110 (ii)] A driving shaft is provided with a segment 1, a cylinder 8, and an extension 14 which is mounted in a bearing 13. A piston 2, shaped as shown, oscillates about the cylinder 8 during the rotation of the whole with the shaft 7, and has a groove on its left hand surface which co-operates with a roller 4 mounted in the casing wall. During one revolution of the shaft, each wedge-shaped working chamber 24 opens and closes to pump fluid from an inlet 16 to an outlet 17. The ends 18, 19, of the cylinder close the ports 16, 17, in passing. The position of the roller 4 is not more than 70 degrees above the axis of the shaft, and in a forward direction' from a vertical axis passing through the shaft, not more than 40 degrees. The roller shaft 31, Fig. 9, is mounted on bearings 29, 30, and may move axially against a spring 34, should the roller meet with excessive resistance. A flexible element 32 may be included in the roller. One end of the casing may be cylindrical and contain a piston spring-pressed against the segment 1 to compensate for wear. Two pumps may be coupled in series with the cylinder 8 in each parallel, or the pumps may be in parallel, and the cylinder 8 in each displaced by 90 degrees.
Patent GB-511781-A (GB)
Title: Shuttle changing device for weaving looms
IPC: D03D45/34
Filed: 1938-02-22
Abstract: 511,781. Shuttle-changing mechanism for looms; clutches. MANUFACTURE DE MACHINES TEXTILES MATEX. Feb. 22, 1938, Nos. 5536 and 5537. Convention dates, Feb. 24, 1937 and June' '8, 1937. [Class 142 (iii)] [Also in Group XXIV] The shuttle is introduced into the box while the box and the shuttle are moving in the same direction but at different speeds. As shown the bottom shuttle in the magazine 75 is presented to the box by nippers 12 or 73. These nippers are mounted on arms 78 pivoted on the same centre 15 as the slay and are advanced to the slay and then moved back at a lower speed than the slay during transfer by levers 67, 65 and a spring 62 under the control of a cam 51. At weft exhaustion, the slide 58 is connected with the lever 53 by a catch 56 operated by an electromagnet 57. In another arrangement the nippers are operated by a cam which is rotated for a single revolution only by mechanism such as that shown in Fig. 6. Here the cam is driven by a wheel 6 and clutch part 22 bolt loose on the constantly running shaft. When at rest the clutch part 22 is locked by a fixed pin 27 and a notch 28. On indication of weft failure a pawl 34 is moved by the electromagnet 38 so that it can be lifted by a cam 29 on the shaft 20. This moves the spring connected lever arms 35, 26 and tends to move the clutch part 22 into engagement with the fixed clutch part 21. When the projection 40 and recess 41 register the spring 37 engages the clutch, at the end of one revolution the pawl 34 has been released and the spring 23 disengages the clutch parts and engages the recess 28 with the stop pin 27. The shuttle box rear side 81 is raised by a cam 77 and roller 98 against the action of springs 88. The front face of the box is lifted by arms 89 from the rear side 81. The rear side of the box is cut away at 95 for the nipper arms, the ends of which are pivoted and spring mounted as shown at 12", so that they can be pulled clear of the shuttle when the latter is boxed.
Patent GB-265790-A (GB)
Title: Improvements in or relating to seed drills
IPC: A01C7/14
Filed: 1926-02-26
Abstract: 265,790. Randell, F. Feb. 26, 1926. Seed drills. - In a seed drill in which the seeds are delivered into hoppers by cups carried by rotary discs, the discs are arranged in pairs and a hopper between the members of each pair is movable to receive seeds from either disc, one of the two discs being adapted to deliver a quantity of seeds differing from that delivered by the other. The discs are mounted on a shaft b passing through a trough or barrel containing the seeds, the cups h on one disc d of each pair being larger or more numerous than the cups g on the other disc c. The hopper e is mounted on trunnions f so as to be movable towards either disc. The hoppers e may be simultaneously shifted by means of a rod passing across the machine. They may be held in inoperative position midway between the discs. The discs may be replaced by others.
Patent GB-650091-A (GB)
Title: Improvements in or relating to mechanism for preselecting and effecting gear changes
IPC: B23Q5/18
Filed: 1947-02-27
Abstract: 650,091. Controlling change-speed gearing. VICTORIA MACHINE TOOL CO., Ltd., FRYE, J., and SELBY, J. Feb. 27, 1947, No. 5663. [Class 80(ii)] Controlling mechanism for change speed gearing comprises means to selectively prevent the movement of a plurality of plungers which are actuated by fluid pressure to effect the change of rate. The selector forks 5, 6 of a change speed gear are actuated by pinions 11, 12 engaging the racks 9, 10 rigid with the forks, the pinions 11, 12 being rotated through movement of the rack plungers 15, 16 which engage further pinions 13, 14 rigid with the pinions 11, 12 respectively. The plungers 15, 15 and 16, 16 are arranged on each side of the pinions 13, 14 in staggered relationship and are moved axially by plungers 17, 18 moving in radial bores 19, 20 formed in a cylindrical body 21, the bores extending to meet in a common space 22 in connection by the flexible pipe 30 with a cylinder 27 containing a hand operated plunger to supply pressure fluid to the space 22 on movement of a lever 29. The application of pressure to the space 22 forces the plungers 17, 18, out of the body 21 against the bias of the tension springs, to meet the plungers 15, 16, and so cause lateral movement, through the rack and pinion mechanism of the forks 5, 6, selection of the gear being effected by a cylindrical sleeve 23 mounted for rotation on the body 21. The sleeve 23 has a plurality of holes therein, some 26 being clearance holes for the large diameter of the plungers 17, 18 and the others 25 being clearance holes for the reduced portions of the plungers, the holes being so positioned that for predetermined angular positions of the sleeve 23 with respect to the body 21, the plungers will selectively be allowed to project for full length, half length or be retained within the body 21 and thus move the plungers 15, 16 selectively for full, half and zero travel to provide the desired positions of the selector forks 5, 6. The sleeve 23 is rotated through a pinion 33 rigid therewith, meshing with a rack 34 moved by a manual selector knob 36 through gearing and a second pinion 35, the angular position of the sleeve being maintained by a spring detent 39. In operation the desired ratio is preselected by rotation of the knob 36, which may provide visual indication of the ratio, to rotate the sleeve 23, and the gear is engaged by depression of the hand lever 29 pressurizing the space 22 to move the appropriate plungers, change of speed being facilitated by a switch operated by the hand lever which cuts off current to the driving motor during shift. The pinions 13, 14 may be replaced by levers connected to the plungers 15, 16 and the forks 5, 6 and the sleeve 23 may be replaced by a flat plate sliding over a plane surface of the body 21, further the pressure may be generated by a motor driven pump or come from the machine service line. Specification 593,123 is referred to.