baber/WOPTO huggingface dataset:
Patent GB-479549-A (GB)
Title: Improvements in loud speaker arrangements for public address systems
IPC: H04R1/26
Filed: 1936-11-20
Abstract: 479,549. Loud-speakers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 20, 1936, No. 31870. Convention date, Dec. 16, 1935. [Class 40 (iv)] A loud-speaker unit for public address systems comprises a main loud-speaker arranged so that sound is emitted initially in a vertical direction and is reflected by the surfaces of deflecting members so that it is propagated in all directions radially together with several additional loud-speakers radiating the high frequency sounds direct to the listener and located in, or adjacent the mouth of, the sound passage formed by the deflecting members, or above or below the sound-deflecting members. Sound from a large diaphragm loud-speaker 1 passes through a passage constituted by a curved surface 3 formed in a housing 2 and the lower surface of a deflecting member 4. The loud-speakers 5 for transmitting the higher frequencies are equiangularly arranged in the lower part of the housing. The axes of the loud-speakers 5 are adjustable and are preferably inclined slightly towards the ground. Conical or V-shaped deflectors may be located between the loud-speakers 5.
Patent GB-1355667-A (GB)
Title: Alpha-beta-unsaturated delta-lactones and process for the pre paration
IPC: C07D317/54
Filed: 1971-07-07
Abstract: 1355667 α,#-Unsaturated-#-lactones HEXACHIMIE 7 July 1971 [9 July 1970] 31941/71 Heading C2C Compounds I  in which n is 0 or 1; R is 1-6 C alkyl ; R 1  is H or 1-6 C alkyl; and R 2  is 1-6 C alkyl, phenyl-1-6 C alkyl, methoxyphenyl-1-6 C alkyl, or methylenedioxyphenyl-1-6 C alkyl are prepared by (1) hydrogenation of a compound II in an alkanol of 1-6 C followed by cyclization of the compound III produced to give I (n is 0) or (2) esterification of the compound II to give an ester IV (R 3  is 1-6 C alkyl), followed by treatment of the ester IV with an alkanol ROH in the presence of a catalyst to give I (n is 1)  Compounds I, with the proviso that when n is 1, R is CH 3  and R 1  is H, R 2  is not phenethyl, pmethoxyphenethyl or 3,4-methylenedioxyphenethyl, are claimed per se. Compounds II and IV are claimed per se in Specification 1,355,668.
Patent GB-670478-A (GB)
Title: Improvements in or relating to processes for treating paper and the like and the improved products resulting therefrom
IPC: D21J1/00
Filed: 1947-01-10
Abstract: 670,478. Sizes. CONSOLIDATED WATER POWER & PAPER CO., and ROLLINSON, E. W. Jan. 10, 1947, No. 31963/49. Divided out of 670,414 under which a Specification was laid open to inspection under Sect. 91 of the Acs, Jan. 10, 1947. Class 121 [Also in Group VIII] Sizes for paper and paper-board contain at least 5 per cent by weight of converted starch, e.g. chlorinated starch, and may also contain five parts of wax, e.g. beeswax, carnauba, paraffin or Japan wax, per 100 parts by weight of converted starch.
Patent GB-376158-A (GB)
Title: Improvements in or relating to electric condensers
Filed: 1931-11-19
Abstract: 376,158. Condensers. DEBRUNNER, R. W. and BRITISH PIX CO., Ltd., 42, St. Paul's Churchyard, London. Nov. 19, 1931, No. 32084. [Class 38 (ii).] A variable condenser primarily for forming a capacitative connection in a wireless circuit comprises axially sliding concentric electrodes 12, 18, the conducting surface of at least one of which tapers or progressively diminishes along the axis so as to have a low maximum capacity. Electrodes as shown are preferably of non-self-supporting sheets of metal foil &c. one 18 being mounted on the exterior of a tubular insulating former 11 while the other 12 is mounted on the inside surface of an outer telescoping former 10, an intervening cylinder 20 of insulating material preventing short circuit. An insulating flexible tie 16 may prevent total separation of the formers in the position of minimum capacity. A flange 13 may overlie the end of the outer former to come into contact with a tab 19 on the other electrode in the position of maximum capacity to that circuit the condenser. Another cylindrical electrode may be used additionally on a third telescoping former or two electrodes might be mounted on one former to provide a differential effect.
Patent GB-1340372-A (GB)
Title: Electrolysis cell and diaphragm therefor
IPC: C25B13/08
Filed: 1971-07-08
Abstract: 1340372 Electrolysis diaphragm made by electron beam FRIEDRICH UHDE GmbH 8 July 1971 [28 July 1970] 32138/71 Heading C7B [Also in Division B1] An electrolysis diaphragm of metallic or non- metallic material has perforations made by an electron beam. The diaphragm may be a laminate. Layers adjacent the electrolyte may be resistant thereto. The perforations are made perpendicular to the diaphragm surfaces. The pore size and distribution may vary in different regions of the diaphragm.
Patent GB-448853-A (GB)
Title: Method of and apparatus for cutting metals and conditioning the cut surfaces
IPC: B23K7/10
Filed: 1934-11-08
Abstract: 448,853. Cutting metals by fusion; annealing. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.- (Assignees of Moss, H. H., and Dawson, J. R.) Nov. 8, 1934, No. 32183. Convention date, Nov. 29, 1933. [Class 83 (iv)] [See also Groups II and XI] Relates to cutting carbon, silicon, and other alloy steels by high temperature heating agents and minimizing undesired changes in the metallurgical structure thereof, and consists in a method and apparatus for this purpose involving cutting the metal and progressively applying locally to the affected surface high temperature reheating flames, which are regulated in accordance with the thermal conditions. As shown, multiple nozzle oxy-acetylene blowpipes B, C are arranged on a support S, the blowpipe B reheating to the desired maximum temperature and the blowpipe C confronting a relatively large area and followed, if desired, by forced draught or cooling liquid to obtain a particular grain structure. The support S is arranged on a carriage G propelled by a motor M. A photoelectric cell is focused on the reheated surface and connects to a reversible motor operated by a rheostat to vary the speed. An amplifier 64 and coil 65 actuate a contact 66 to close the circuits of relays 67, 68 controlling the current from the line L to the motor 62. The latter through worm gearing 69 operates the rheostat and varies the speed of the motor M.
Patent GB-1045756-A (GB)
Title: Method and apparatus for packaging perishable articles
IPC: B65B31/04
Filed: 1963-08-15
Abstract: 1,045,756. Packaging-machines. FMC CORPORATION. Aug. 15, 1963 [Sept. 10, 1962], No. 32254/63. Heading B8C. A packaging machine comprises means for advancing a tube of wrapping material with a longitudinal slot along one side thereof and means for introducing an inert or conditioning gas into the tube through said slot. As shown, a web of gas-impervious, thermoplastic, material is led into a tubeforming die 16, Fig. 1, and cheese loaves to be packaged are fed on to the web in spaced succession by a conveyer 50. On tube formation, the lateral edges 34, Fig. 3, thereof wrap around the inner edges of flanges 22 as these flanges, which form the top wall of the die, gradually extend inwards to form a slot 26, during which time the edges 34 come into contact with rollers 36, slightly inclined to each other in the direction in which the web is moving, which draw them outwards and tighten the web about the cheese loaves 12. The edges 34 are finally turned upwards by guides 42, a longitudinal slot 46 being left between them. The tube then passes under a vertically adjustable gas nozzle 56 and then between two heating shoes 102. The longitudinal slot is sealed after the heating by passing the tube through co-operating pressure rollers 110 and the tube is sealed transversely by sealing rollers 130 which may also sever the tube into individual packages. An inclined plate 126 turns the sealed edges 34 down against the upper surface of the wrapper tube prior to the transverse sealing.
Patent GB-935847-A (GB)
Title: Locks for fluid operated jacks
Inventor: PERDUE JACK
IPC: F15B15/26
Filed: 1960-09-20
Abstract: 935,847. Fluid pressure jacks. ELECTRO-HYDRAULICS Ltd. Sept. 11, 1961 [Sept. 20, 1960], No. 32354/60. Class 78 (3). A lock for an hydraulic jack comprises circumferentially spaced locking segments arranged to move into or out of engagement with a member associated with the jack cylinder and a second member associated with the jack piston assembly. In Fig. 1 a jack is shown locked in the closed position by locking segments 8, loosely mounted on flexible rods 11, engaging a  member 6 of a cylinder 1 and a member 7 of a piston assembly 3, 4. In order to extend the jack fluid pressure applied at a connection 22 moves a locking bolt 10 to the left against a spring 16. This movement carries a sleeve 9 to the left leaving an annular space and freeing segments 8 for radial movement. The fluid pressure now forces the piston assembly 3, 4 to the right, a ramp 26 on the member 7 forcing the segments 8 outwards. A sleeve 13 is then moved to the right under a spring 19 and holds the segments 8 out of engagement with the member 7, the piston assembly 3, 4 thus being freed for extension. The jack may be closed and locked by releasing the fluid pressure at the connection 23 and introducing fluid pressure at a connection 22 to act on the piston 3. Member 7 is forced to abut the sleeve 13 and to move it to the left, compressing the spring 19 and releasing segments 8. The spring 16 then acts on the locking bolt 10 to move it to the right, the sleeve 9 forces segments 8 radially inwards and slides over them to hold them in the locked position between members 5, 7. The closure of the locking bolt 10 may be assisted by pistons operated by fluid pressure (Figs. 3, 4, not shown). The Provisional Specification described an embodiment in which the locking segments 8 slide on radial pins, the flexible rods 11 being omitted and states that the lock may be fitted so as to lock a jack against closure.
Patent GB-1172136-A (GB)
Title: Pre-Heater for Plastic Granules with Vertically Flowing Air Stream
IPC: B29C48/29
Filed: 1967-07-13
Abstract: 1,172,136. Granule preheater. BORGWARNER CORP. 13 July, 1967 [25 July, 1966], No. 32389/67. Heading B5A. [Also in Division B8] Granules are preheated and fused into coherent cakes prior to moulding by locating them in an open-ended box 116 and passing a vertical stream of heated gas through them. The box is then reciprocated to a position over an outlet 108 where fused cakes are removed by gravity or by force from a ram 104. The granules are fed from a hopper, over an adjustable downwardly divergent V-shaped spreader (see Fig. 4, not shown) into a holding chamber 31 divided into two parts by a wall 58. After sufficient material has been collected in chamber 31, the hopper outlet is closed and the base 61 of the chamber reciprocated by piston 67 so that aperture 63 allows material from either side of the wall 58 to fall into the corresponding side of the box 116. The material is then heated and fused into a pair of cakes located on either side of the web 123 by a stream of hot gas entering through upper perforate walls 91 and 96 and leaving through a reciprocable lower perforate wall 149 upon which the box 116 rests. After sufficient heating the wall 149 is lowered and the box transferred by piston 131 to a position over the outlet 108, where the two cakes are successively deposited into the outlet and are fed to a moulding machine. During this movement, a brush 138 attached to wall 122 of box 116 sweeps the fines retained on the plate 149 through its perforations and the material left upon the lower wall 101 of the transfer passage into the outlet 108.
Patent GB-1193624-A (GB)
Title: Transportable Tower Cranes.
Inventor: HOBBS ALBERT WILLIAM
IPC: B66C23/78
Filed: 1966-07-19
Abstract: 1,193,624. Mobile tower cranes. RYHALL PLANT Ltd. 4 July, 1967 [19 July, 1966], No. 32476/66. Addition to 990,677. Heading B8B. The transportable tower crane described and claimed in Specification 990,677, is modified by the provision of two pairs of detachable road-wheels 16-19 on each side of the chassis. In a second embodiment two pairs of crawler tracks 23a, 23b, Fig. 4, are provided and four road-wheels 41. In a third arrangement, Fig. 5, the four crawler tracks swing outwards into operative position on arms 51.
Patent GB-1275996-A (GB)
Title: Riser pipe-assembly for offshore drilling
Inventor: VINCENT RENIC PRICE
IPC: E21B17/01
Filed: 1969-06-26
Abstract: 1275996 Boring earth and rock AMOCO PRODUCTION CO 26 June 1969 32479/69 Heading E1F Buckling stresses due to the weight of drilling mud in a riser pipe assembly 26 having a telescopic connection with an underwater wellhead 20, are reduced by the provision of an annular shoulder 40. In one form, a pipe section 36 is supported from a surface vessel by cables 29 and has a thicker walled extension 34 which is sealingly received for telescoping movement in a pipe stub 32 having centralizing means 44. The stub 32 is supported on a wellhead 20 by a ball and socket joint 22. In a modification (Fig. 5, not shown) a stiffener extension (90) on the lower part of the pipe 36 telescopingly receives the upper part of the pipe stub 32 on bearings (92). In a further modification (Fig. 2, not shown) the extension 34 is replaced by a stub (62) which is sealingly received by an internal annular shoulder (64) for telescoping movement therein. Return flow of drilling mud up the riser is assisted by injecting drilling mud through a port (74) just above the shoulder (64), from a conduit (76) supplied by a pump (80) on the vessel.
Patent GB-618394-A (GB)
Title: Improvements in or relating to tape condensers for textile carding machines
IPC: D01H5/72
Filed: 1946-11-02
Abstract: 618,394. Carding machines. BROOKE, R. B., and HANKINSON, A. Nov. 2, 1946, No. 32579. [Class 120(i)] In a tape condenser, for a carding machine the train of gears g driving the feed and dividing mechanism are driven from a pinion b at one end of a driving shaft a extending across the feed end of the condenser, via gear c, a change wheel e, and an intermediate wheel f mounted on a stud h adjustable for different sizes of wheel e. Wheel e also drives a gear j and sprocket k transmitting drive to the doffer. The other end of shaft a drives, via gears m and clutch n, a pulley r or a sprocket transmitting drive to the usual vertical shaft of the rubbing motion. By withdrawing wheel f from engagement with wheel e and gear g, the carding machine can be emptied without emptying the condenser; alternatively a clutch may be provided in the drive from wheel f.
Patent GB-1471453-A (GB)
Title: Process for preparing reactive xanthene dyestuffs
IPC: D06P1/384
Filed: 1974-07-24
Abstract: 1471453 Reactive xanthene dyes HOECHST AG 24 July 1974 [24 July 1973] 32681/74 Addition to 1311023 Heading C4P Reactive xanthene dyes of the general formula wherein R and R<SP>1</SP> are H, halogen, hydroxy, alkyl, alkoxy, carboxy, or sulphonic acid, R 1  and R 2  are H, cyclohexyl, or alkyl optionally substituted by one or more halogen, hydroxy, carboxy, sulphonic acid, phenyl, -OSO 3 H and -NH-acyl groups, or R 1  and R 2  may with the N atom form an alkylene-imine ring optionally containing further hetero atoms, R 3  is H or alkyl, A is a mono- or bi-nuclear aromatic radical, Y is a group wherein R 4  is H or alkyl, Z is halogen, hydroxy, sulphato, phosphato, lower alkanoyloxy, or arylcarbonyloxy, m and n which may be different are 0, 1 or 2, q is 0 or 1 and p is 1 or 2 are prepared by reacting without isolation of an intermediate, one mol of a dihalogeno xanthene compound of the general formula wherein B is Cl or Br, with at least one mol of a compound or with at least one mole of an amine HN(R 1 )R 2  in a purely organic medium comprising carbamoyl groups or a polar aprotic solvent, at 0-140 C. optionally in presence of an acidbinding agent and then reacting the monocondensation product obtained without isolation, after neutralization of the acid formed with at least one mol of an amine of the above two formulae not previously used in the first monocondensation at 70-200 C. in presence of one or more acid binding agents and (a) optionally esterifying the terminal OH group where Z is OH or (b) converting the terminal -CH 2 CH 2 OH to a vinyl group by reaction with an alkaline agent. The dyes dye or print natural or regenerated cellulose, wool, silk, synthetic polyamide, polyurethane and leather.
Patent GB-506790-A (GB)
Title: Improvements in or relating to frequency convertors and circuits therefor
IPC: H03C1/58
Filed: 1937-11-26
Abstract: 506,790. Modulatingsystems. STIELTJES, F. H. Nov. 26, 1937, No. 32691. Convention date, Dec. 4, 1936. Drawings to Specification. [Classes 40 (iii) and 40 (v)] Relates to inversion modulators in which the carrier frequency affects only slightly the transfer of energy from input to output terminals, and in which the input voltages depend on the output currents and voltages and the output currents at the same time depend on the input currents and voltages ; or alternatively in which the output voltages depend on the input currents and voltages while the input currents depend on the output currents and voltages; or in which both alternatives are simultaneously present. In order to reduce the losses due to undesired frequencies produced in the modulator, the filters on the modulation input and output terminals are so designed that a low impedance to undesired frequencies is connected at those terminals where the currents are dependent on the current and voltage at other terminals, while high impedances to the undesired frequencies are connected at the other terminals. Calculations and an example of a modulator in accordance with the invention are given in the Specification.
Patent GB-1198802-A (GB)
Title: Improvements in or relating to Tape Applying Machines
IPC: A43D8/00
Filed: 1966-07-21
Abstract: 1,198,802. Binding insole edges. BRITISH UNITED SHOE MACHINERY CO. (Boston Machine Works Co.). 20 July, 1967 [21 July, 1966], No. 32737/66. Heading A3B. [Also in Divisions 84 and B5] A machine for applying a binder tape having an adhesive surface to the edge of a shoe insole includes means for feeding the insole and binder tape past a binder head which has an open groove which when the insole edge is pressed into it causes the tape to curl transversely and embrace the insole edge. Tape T passes round a roller 46 and along guide channels 48, 56 to a binder head 62. A feed foot plate 26 co-operates with an upper foot member 28 and a presser foot 30 to move an insole along step by step and to press the tape which has been wrapped round the insole edge by the binder head against the insole. The binder head and guide channels are mounted on a platform 40 which is vertically adjustable on the support 22 for the plate 26 so that insoles of different thicknesses can be centred in the groove in the binder head. The groove is of generally U-shape becoming increasingly deep from the end at which the tape enters the head. Extensions (118) of the walls (114) of the groove (Fig. 11 not shown) centre the tape in the binder head. The operator draws down a spring-biased blade (60), Fig. 4 (not shown) to sever the tape when a length sufficient for the insole being bound reaches a gap 58 between the guide channel portions 48 and 56, the blade (60) passing through the gap 58. A wiper pad 76 mounted above the gap 58 and being slit in alignment with the gap cleans the blade of adhesive as the blade descends for its cutting stroke. Feed means for advancing the leading end of the tape from the blade to the binder head for the next insole include a lever arm 88 carrying a plate 101 with teeth 102 which can be caused to dig into the tape by rocking movements of a finger plate 100, a tooth 106 and spring wire 108 also connected to the finger plate 100 keeping the tape flat as it advances in response to movement of the finger plate 100 to the left, as viewed in Fig. 1. An abutment 112 integral with the tooth 106 engages the support 22, terminating movement of the tape-advancing means when the leading end of the tape has passed the binder head 62. A spring (92) Fig. 3 (not shown) returns the lever 88 &c. to the initial position shown in full lines in Fig. 5. To accommodate tapes of differing widths an auxiliary guide channel (122), Figs 8 and 9 (not shown) can be fitted in the guide channel 48.
Patent GB-417421-A (GB)
Title: Improvements in or relating to boots and shoes
IPC: A43B7/12
Filed: 1933-11-23
Abstract: 417,421. Boots &c. PARKER SHOE CO., Ltd., F., and EATON;J., Bardolph Street, Leicester. Nov. 23, 1933, No. 32806. [Class 17 (ii).] A leather insole 10 for boots or shoes is relieved in thickness all round its periphery to accommodate the overlasted portion 14<a> of the upper, allowing the outsole 15 to be secured direct both to the insole and the overlasted portion of the upper. The rebate is substantially equal in width and depth to the width and thickness of the overlasted portion of the upper, and may be of greater depth towards the centre of the insole than at the edge. The insole may be made of more than one layer permanently secured together before incorporation in the shoe. Specification 151,284, [Class 17 (ii)], is referred to.
Patent GB-308676-A (GB)
IPC: C21D9/00
Filed: 1928-11-10
Abstract: 308,676. Siemens - Schuckertwerke Akt.-Ges. March 26, 1928, [Convention date]. Charges, cooling.-In a furnace for annealing stampings in which the charge is cooled, on the termination of the heating process, by thermosyphon circulation of the furnace atmosphere through the heating chamber 10 and external cooling chambers 9, 11, the latter are disposed adjacent the side walls of the furnace. The tubes 11, which extend through water chambers 9, communicate at their upper ends with the space between the furnace cover 2 and a sealing hood 7, and at their lower ends are connected to the furnace bottom 14 which is formed of chequer brickwork or porous bricks to distribute the cooled gases over the whole cross section of the furnace. A cooling coil 13 may be dispcsed in the space between the cover 2 and hood 7 immediately over the flange 4 which projects outwardly from the metal casing 3 of the furnace and supports the tubes 11 and sealing trough 5. In operation, communication between the furnace chamber 10 and the tubes 11 is established by raising the cover 2 without breaking the seal 6, the cooling operation being controlled by the extent to which the cover is raised and also by adjustment of valves 15 provided in the tubes 11.
Patent GB-521222-A (GB)
Title: Improvements in or relating to shoulder carrying straps for bags
IPC: A45F3/12
Filed: 1938-11-12
Abstract: 521,222. Pads for shoulder straps. PAGE, B.'P. Nov. 12, 1938, No. 32984. [Class 141] A shoulder pad for a golf bag &c. strap comprises a strip 1 of rubber formed into tubular parts through which the strap passes, a layer 2 of sponge rubber being provided on which the strap rests.
Patent GB-830005-A (GB)
Title: Improvements in or relating to methods of protecting graphite surfaces
Inventor: DAVIDSON HUGH WILSON
IPC: G21C5/12
Filed: 1956-10-29
Abstract: Graphite is protected against corrosion by exposing it to an atmosphere of or including nickel carbonyl at room temperature to cause nickel to be deposited on at least part of its surface (both internal and external), and heating the surface in an atmosphere free from nickel carbonyl and any decomposition products of the deposition process to stabilize the deposited nickel.  The heating may take place in an inert atmosphere, e.g. argon, at a temperature of 500 DEG C.  The process is applied to the protection of graphite components in nuclear reactors (see Group XL(a)). Specification 791,011 is referred to.