baber/WOPTO huggingface dataset:
Patent GB-703591-A (GB)
Title: Improvements in lap winding machines
IPC: D01G27/02
Filed: 1952-03-03
Abstract: 703,591. Preparing fibres for spinning. TERRELL MACHINE CO. March 3, 1952 [Nov. 23. 1951], No. 5556/52. Classes 120(1), 120(2) and 120(3) A lap winding machine includes a driven winding drum and two parallel arms hinged about an axis parallel to that of the drum and arranged at their extending ends for endwise supporting engagement with a lap core, at least one of the said arms being further arranged for selectively establishing and releasing the said supporting engagement by motion directed axially of the lap core. As shown, Fig. 1, slivers drawn from cans through guides 11 by driven rollers 14 and idler rollers 13 are associated in lap form on a feed table 15 and fed by calender rollers 23, 24 on to a fluted winding drum 25 to be wound into a roll on a lap pin P, Fig. 7, carried on arms 43, 44 pivoted on a rock shaft 40. Rollers 23, 24 are driven at the same peripheral speed as drum 25 by means of a chain drive 26 from an electric motor 27 which is pivoted so that its weight tensions the chain. The chain also conveys drive to a gear box 22 driving rollers 14. Roller 24 is pressed by a spring 37 against rollers 23 and 25. Lap pin P is retained between arbors 45, 46 and associated, flanges 47, 48, arbor 46 and flange 48 being manually retractable by means of a toggle mechanism operated by a handle 54 for release of a wound lap roll and replacement of a fresh lap pin. Alternatively, both arbors may be retractable, or one or both of arms 43 and 44 may be laterally slidable on shaft 40. The roll is pressed against drum 25 during winding by means of the sliding friction of a brake 78 acting on a drum 72 connected by reduction gearing to a pinion 65 meshing with a gear segment 64 carried on a arm secured to rollsupporting arm 43. After doffing a completed lap roll, arms 43, 44 are returned to starting position by means of a handwheel 77 on the shaft 66 of pinion 65, a pedal 81 serving for temporarily releasing brake pressure. A micro-switch 92 operates to stop the machine if a hinged top cover 93 is not in place; a counter mechanism 94 records the length of lap wound and stops the machine at a given roll size which is also indicated by a signal light 97. An apron 62 receives the completed roll after doffing, and a tray 63 contains a supply of empty lap pins.
Patent GB-275883-A (GB)
Title: Improvements in molds for typographical line casting machines
IPC: B41B11/52
Filed: 1927-03-02
Abstract: 275,883. Hart, H., (Mergenthaler Linotype Co.). March 2, 1927. Moulds for type-bar-making machines.-Relates to moulds in which the cap and body portions are each formed with a separate hardened inner section, in order to avoid the adherence of molten metal and to resist wear. The inner section B', Fig. 4, of the cap portion is provided with threaded bosses or projections B<4>, to receive the clamping-screws B<3>, Fig. 1, and the outer section B<2> is formed with recesses to accommodate the bosses. Instead of separate bosses on the section B', a continuous tongue may be used. The body portion of the mould may be similarly formed.
Patent GB-1491344-A (GB)
Title: Apparatus for monitoring the internal temperature of food in a microwave oven
IPC: H05B6/68
Filed: 1975-02-12
Abstract: 1491344 Measuring temperature electrically GENERAL ELECTRIC CO 12 Feb 1975 [1 March 1974] 5949/75 Heading G1N Apparatus for monitoring the temperature of food being cooked in a micro-wave oven is generally as described in Specification No. 1421225 (Division G1), but the length of the coaxial cable connecting the temperature sensing probe to the measuring circuit is chosen so that the length D 1  from a connection of the cable shield 63 at the oven wall 24 to the probe housing tip is an integral number of half-wavelengths, of the micro-wave wavelength whereby in use the cable and probe combination is non-resonant at the micro-wave frequency. Thus the current in the cable at the micro-wave frequency is a minimum, and the temperature sensor is shielded from micro-wave energy.
Patent GB-1369790-A (GB)
Title: Transportable noise reducing structures
IPC: G10K11/168
Filed: 1971-10-26
Abstract: 1369790 Sound insulation H C SHELBOURNE and A E J SELFE 26 Oct 1971 [27 July 1971] 05979/74 Divided out of 1369789 Heading F2X  A transportable noise reducing structure comprises a chamber in which noisy operations such as road drilling are performed, the chamber opening to the ground and being defined by a frame enclosed above ground by a sound reducing casing openable to permit access to the chamber and constructed of metal and plastics laminated sheeting. The sheeting is preferably composed of three mild steel sheets interspaced by soft polyvinylchloride sheets, adjacent sheets being bonded together under pressure using hot polychloroprene or epoxy resin based adhesive. The casing is attached to the frame by bolts having resilient vibration absorbing bushes. Ground engaging rollers are mounted on the frame and eyes at the top of the structure facilitate transport by crane.
Patent GB-902827-A (GB)
Title: Improvements in or relating to the treatment of aluminium
Inventor: THOMAS ROBERT WILLIAM
IPC: H01G9/055
Filed: 1959-02-20
Abstract: 902,827. Etching and anodizing aluminium, electrolytically. BRITISH ALUMINIUM CO. Ltd. Feb. 8, 1960 [Feb. 20, 1959], No. 6015/59. Class 41. An aluminium or aluminium alloy surface is etched anodically with an electrolyte using interrupted pulses of unidirectional current of frequency 20 c.p.s. to 6 k.c.p.s., a current density of 3 to 5 A.S. cm., and each pulse of 5 to 100Á sees. duration. The preferred electrolyte contains halides or nitrates of alkali metals, ammonia or magnesium. It is stated that the active surface is increased 10 times for a loss of about 10% of metal. The etched surface may then be washed and formed using boric acid or an alkali borate solution. In examples, aluminium foil after cleaning in caustic soda is etched using a 15% solution of NaCl, MgCl 2 , KNO 3  or NaNO 3  for 2 to 15 mins. at 20‹ to 40‹ C. and at 15 volts, 20 Á sees. duration and a repetition frequency of 66 c.p.s. The foil is then washed and treated with 2% H 3 BO 3  solution containing a little sodium borate at 460 volts.
Patent GB-509348-A (GB)
Title: Improvements in the manufacture and production of 2-methyl-butanediol-1.3
IPC: C07C33/035
Filed: 1938-02-25
Abstract: 509,348. 2-Methyl-butanediol-1.3. JOHNSON, G. W. (I. G. Farbenindustrie Akt.- Ges.). Feb. 25, 1938, No. 6032. [Class 2 (iii)] 2-Methyl-butanediol-1:3 is prepared by treating 2-hydroxy-methyl-butene-1-one-3 with hydrogen, alone or in admixture with, e.g. nitrogen, carbon monoxide or carbon dioxide, in the presence of a hydrogenation catalyst, e.g. a catalyst containing nickel, copper, cobalt, palladium or platinum. The reaction may be carried out under increased pressure, e.g. 10- 200 atmospheres, at temperatures varying with the catalyst, but generally up to 200‹ C. for discontinuous working and up to 300‹ C. for continuous working when the materials only remain in the reaction chamber for a short time. The pine or crude 2-hydroxymethyl-butene-1- one-3, prepared for instance by condensing formaldehyde and methyl vinyl ketone, with or without diluents or solvents such as methanol, may be allowed to flow over the catalyst in the presence of hydrogen or may be reacted with hydrogen in a suitable vessel, e.g. a pressuretight vessel in the presence of the catalyst, till hydrogen is no longer absorbed. Isoprene is obtained by the dehydration of 2-methylbutanediol-1:3 which may be prepared by reactions described above from formaldehyde and vinyl methyl ketone.
Patent GB-1457509-A (GB)
Title: Disinfectant compositions
IPC: C11D1/00
Filed: 1973-02-07
Abstract: 1457509 Disinfectant compositions JEYES GROUP Ltd 29 Jan 1974 [7 Feb 1973] 6063/ 73 Heading ASE A disinfectant composition comprises a phenolic disinfectant e.g. a tar acid, a vegetable 'or mineral oil, a surface active agent and a solvent which is miscibie in all proportions with both water and oil eg. alkoxy aliphatic alcohols and polyalkylene glycol. Specified phenolic disinfectants include tar acid fractions boiling above 190‹C, cresylic acids, chlorinated phenols, phenol homologues and substituted phenols. Specified oils are kerosene, or cottonseed, castor or tall oil. A small amount of emulsion stabiliser e.g. sodium recinoleate soap and an insecticide e.g. 2% by wt of I naphthyl-N-methyl carbamate or YBHC may also be present. The composition comprises 16-55% by wt (preferably 45%) of disinfectant, 5-50% by wt (preferably 22%) of oil, 5-30% by wt (preferably 20%) of surface active agent and 5-50% by wt preferably 10%) of solvent. Suitable surface active agents are anionic agents such as alkyl benzene sulphonates, alkyl ether sulphates and aryl ether sulphates (preferably neutralised with amines or alkali metals) and nonionic agents such as ethoxylated saturated vegetable oils.
Patent GB-511866-A (GB)
Title: Improvements relating to bedsteads and cots
IPC: A47C19/02
Filed: 1938-02-26
Abstract: 511,866. Bed rests. WALES, Ltd., and BLACKMORE, A. E. Feb. 26, 1938, No. 6111. [Class 52 (ii)] A bedstead or cot of the kind having a back rest adapted' to assume a vertical or inclined position is provided with guide rods 10 for the rest secured to the uprights 7a of the frame by screwed eye-bolts 11 fixed by nuts 13 and riveting over a washer 14, as shown in Fig. 3. The back has screwed eyes 17 engaging sockets in the top tube member 16 and sliding on the rods 10 and is supported in the vertical position by U-brackets 20 provided with a back flange to guide the ends into the supports. The rods 10 have heads 10a and nuts 15. The rest is shown in an inclined position for supporting pillows &c. in Fig. 2. When applied to wooden bedsteads the rest is -provided with eye-bolts at its upper corners and studs to engage the U-brackets.
Patent GB-358407-A (GB)
IPC: H01B7/14
Filed: 1931-02-27
Abstract: 358,407. Armouring cables. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 27, 1931, No. 6178. Convention date, March 10, 1930. [Class 36.] A pressure-resisting covering for a submarine cable 1, Fig. 1, is formed of shaped strands 5 of insulating material, such as hard rubber, ebonite or vulcanite, which are helically applied about the cable directly under the lead sheath 6. As shown in Fig. 2, the pressure-resisting covering formed by hard-rubber segmental strands 11 is rendered selfsealing by metallic packing strands 12 inserted in recesses formed between the strands 11. In a modified construction, the insulating strands 20 are shaped as shown in Fig. 3.
Patent GB-627696-A (GB)
Title: Improvements in electrical pulse discriminating circuits
IPC: H03K9/00
Filed: 1946-02-28
Abstract: 627,696. Pulse discriminating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 28, 1946, No. 6211. Convention date, Oct. 6, 1944. [Class 40 (vi)] For distinguishing between pulses of different slopes, means are provided for converting said pulses to others having amplitudes representative of their slopes, followed by an amplitude discriminator. The circuits described can also be used to distinguish between pulses of different amplitude. In one embodiment the incoming pulses are applied to the grid of valve 4, Fig. 1, through a differentiating circuit 2, 3, the valve being biassed back, to reject pulses of below a predetermined amplitude, by the voltage source 48 and potentiometer 27. The output pulses from transformer 28 are applied in parallel to valves 9, 10 through differentiating circuits 5, 6 and 7, 8 respectively. The grid bias of valves 9, 10 is derived from the common potentiometer 25, additional bias for valve 9 being provided by voltage source 11 in its cathode lead. The output pulse amplitudes from valves 9, 10 are differentially adjustable by variation of theanode load resistances formed by the two sections of potentiometer 12 and the anode circuit time constants are equalized by adjustment of the differential condenser 13. The pulse outputs from valves 9, 10 are passed to valves 18, 19 respectively through differentiating circuits 14, 15 and 16, 17 respectively and the outputs of valves 18, 19 are fed through transformers 20, 21 connected in opposing sense to lead 53 and the grid of output valve 24. Valve 24 is biassed back adjustably by potentiometer 39. In operation, if undesired pulses in the input are of smaller amplitude than desired pulses, the former aie e not passed by valve 4. If the undesired pulses are of greater amplitude than desired pulses, the latter pass valve 10 but not valve 9 so that they appear in the output of valves 19 and 24, whereas the undesired pulses pass both valves 9 and 10 and cancel out in lead 53. Where the pulses are discriminatable only by their slope, the differentiating circuits convert slope differences into amplitude differences which are then discriminatable by the circuit. The Specification as open to inspection under Sect. 91 comprises also a discriminator circuit in which the valve 10, Fig. 2 (Cancelled), feeds the control grid of a pentode 32 and the valve 9, when energized by pulses of sufficient amplitude, triggers a flip-flop multivibrator 53 to produce a pulse which disables valve 32 by removing its screen grid potential. Thus pulses of above a predetermined amplitude, applied to the common input of valves 9, 10, are not translated by valve 32. This subject-matter does not appear in the Specification as accepted.
Patent GB-511968-A (GB)
Title: Improvements in or relating to methods and apparatus for the filtration of alkaline solutions containing dissolved precious metal values
IPC: B01D37/00
Filed: 1938-02-28
Abstract: 511,968. Filters. MERRILL CO. Feb. 28, 1938, No. 6254. Convention date, July 12, 1937. [Class 46] In apparatus for filtering cyanide solutions of precious metals comprising a number of filter leaves 16, each connected by rising pipes 17, a horizontal pipe 18 and a coupling 19 with a common filtrate manifold 21, the other end of each pipe 18 can be connected by a coupling 24 to an independent source of suction. A filter leaf which has been removed from the filter tank 14 for discharge of the cask and cleaning, is afterwards lowered into a separate compartment 51, Fig. 3, of the tank, communieating with the main compartment by openings 52, and there coated with kieselguhr, which is kept in suspension in the compartment by air supplied through a pipe 54 and jet nozzle 55. For this operation the pipe 18 is connected by the coupling 24 and a hose 26 to a separating chamber 62, in which suction is maintained by a pump 72 through a pipe 71, trap 67 and pipe 63. The kieselguhr is thus caused to form an even coating on the leaf, solution being drawn through to the chamber 62, where it separates from air and from which it is returned to the filter tank 14 by a pump 57. Suction is maintained within the leaf as it is lifted back into the main compartment of the tank 14 and until the operator sees that clear solution is being returned by the pump 57. The coupling 19 having been completed suction is then continued through the manifold 21, and the coupling 24 is disconnected, after a valve 23 has been closed. As shown the filtrate is drawn from the manifold to a receiver 11 connected to the trap 67 and pressed on by a pump 33 to a filter-press 12, a precipitant such as a suspension of zinc dust being supplied to the pump in regulated quantities through an intermittently-operated valve at the base of a container 37. As an alternative suction may be maintained in the chamber 62 by a connection 86 to the suction pipe 87 of a slime filter 85.
Patent GB-287039-A (GB)
Title: A process for the production of thin electric insulating layers having a high resistance to leakage
IPC: H01B3/32
Filed: 1926-09-08
Abstract: 287,039. JoffÚ, A. Sept. 8, 1926. Condensers.-A process for the production of thin insulating layers (of the type described in Specification 257,080) having a high resistance to leakage and of a thickness less than 0.01 millimeters comprises the treatment of a dielectric which reacts with oxygen so that its' surface is modified to exhibit those properties. Air, oxygen, ozone and chlorine are mentioned as suitable oxidizing media, and a specific process comprises the polymerization of linseed oil at 250‹ C. with a cobalt or manganese siccative. Applications of such dielectric material are referred to.
Patent GB-180439-A (GB)
Title: Improvements in pneumatic hand tools
IPC: E21C37/24
Filed: 1921-02-24
Abstract: 180,439. Jenkins, P. H. Feb. 24, 1921. Percussive hand tools. -The tool holder 2 slides in an adjustable sleeve 10, being checked by the reduced forward end of the sleeve. Rotation of the holder is prevented by a feather 17, or flats may be substituted therefor. The hammer piston 5 in the position shown closes a port 4a which is opened to start the working by pressing on the tool, whereupon the piston is pressed back to uncover the port.
Patent GB-712033-A (GB)
Title: Improvements relating to the catalytic desulphurisation of petroleum hydrocarbons
IPC: C10G65/16
Filed: 1950-03-15
Abstract: Petroleum feedstocks are desulphurized in a two-stage process comprising passing a relatively low-boiling feedstock in vapour form to an autofining zone operated at a pressure below the equilibrium pressure and passing the excess gas formed to a second desulphurization zone in which a relatively high-boiling petroleum feedstock is contacted with a sulphur-resistant hydrogeneration catalyst.  Sulphur-free products are removed from both zones.  In the autofining process the feedstock in admixture with hydrogen is passed over a catalyst under such conditions of temperature and pressure that dehydrogenation of naphthenes in the feedstock produces sufficient hydrogen to convert organically combined sulphur to hydrogen sulphide and to maintain the pressure in the reaction zone, the hydrogen being recycled to the reaction zone on the sole source of hydrogen thereto.  The catalyst may be mixtures of oxides of cobalt and molybdenum, chemical compounds of cobalt, molybdenum and oxygen, or mixtures thereof; a specified catalyst is mixed cobalt and molybdenum oxides on alumina.  The autofining process may be carried out in a static bed reaction or by using a moving bed or third catalyst.  The low-boiling feedstock may be naphtha or kerosine and the high-boiling feedstock may be gas oil, wax distillate, crude oil or reduced crude.  A crude oil may be fractionated to recover a fraction, which is autofined, and a residue, which is hydrofined using the excess gas from the autofining stage.  The autofining zone may be operated at a temperature of 750 DEG -800 DEG F. and a pressure of 50-250 p.s.i.
Patent GB-142445-A (GB)
Title: Improvements in or relating to steam injection condensers
IPC: F28B3/04
Filed: 1920-03-03
Abstract: 142,445. Soc. des Condenseurs Delas. April 29, 1919, [Convention date]. Splashing-apparatus.-A steam injection condenser is formed with a removable inner wall F, which is pierced with one or more rows of large holes D, co-acting with circular screens or walls E, whereby the water is atomized.
Patent GB-423072-A (GB)
Title: Improvements in change speed gears
IPC: F16H33/18
Filed: 1934-02-28
Abstract: 423,072. Variable speed gearing. LUNDQVIST, G. F., 126, Folkungagatan, Stockholm. Feb. 28, 1934, No. 6525. Convention date, March 11, 1933. [Class 80 (ii)] Motion is transmitted from a sun wheel 1, Fig. 2, mounted on the driving shaft 2 to a sun wheel 5 mounted on the driven shaft 4 through stepped gears 8, 9 bored at 10 so as to act as centrifugal weights and supported in a carrier 12 prevented from rotating backwards by a ratchet detent 18, Fig. 1. While speeds are low and the load on the driven shaft considerable, the arrangement acts as an ordinary countershaft reduction gear, but if at higher speeds the shaft 4 is momentarily allowed to catch up the shaft 2, the gears 8, 9 stop rotating about their own axes, and owing to their rotation about the axes of the shafts 2, 4, the heavy parts of the gears 8, 9 fly out by centrifugal force to the positions shown in Fig. 2, giving a solid drive, the ratchet 18 overrunning. The solid drive persists until the load on the driven shaft increases and /or the speed decreases sufficiently for the torque applied by the sun wheel 1 to the gears 8, 9 to be able to restart the rotation of these gears. When the gear is applied to a motor vehicle, the change to solid drive is effected by momentarily closing the throttle while the change-down is produced automatically by the increase in load, and decrease in speed, of the vehicle. Neutral is obtained by withdrawing the detent 18 by a Bowden wire 22 which acts against a spring 21. A bidirectional brake 23 may be brought into action by a Bowden wire 24 against the action of a spring 25. Two gears such as that shown in Fig. 2 may be employed in series, the centrifugal masses on the gears 8, 9 of the first gear being larger than those of the second, so that the gears lock at different speeds, and two reduced speeds are obtained. The Specification as open to inspection under Sect. 91 comprises also the following modified forms. In the form shown in Fig. 2 (Cancelled), the driving shaft 1 is connected through a manually-operable clutch 5, 40, 29 to the sun wheel 2. The centrifugal weights on the planets 10, 11 comprise laminae 13, or perforated planets as shown in Fig. 2 may be employed. The detent is a pawl 21 pivoted on the planet cage 16 and engaging holes 23 in a fixed disc 25. In the form shown in Fig. 8 (Cancelled), the sun wheel 2 carries a flange 64 by which it is restrained by the roller detent 68, the planet cage 63 being mounted on the driving shaft 1. The other sun wheel 7 is connected to the driven sprocket 8<a>. A bidirectional brake 67 for the sun wheel 2 also is provided. This subjectmatter does not appear in the Specification as accepted.
Patent GB-736712-A (GB)
Title: Improvements in and relating to machine tools
IPC: B24B41/06
Filed: 1953-03-10
Abstract: 736,712. Lathe details. WALDRICH, O. March 10, 1953 [March 20, 1952]. No. 6623/53. Class 83 (3). [Also in Group XXIII] A bed for a lathe has front, intermediate and rear guide-ways, the rear guide-way 3 having its guiding surfaces 9, 10 upwardly inclined from front to back. The front and an intermediate guide-way (not shown), support a tool slide while a second intermediate guideway 4 and the guide-way 3 support a tailstock for the work 2, which may be a calender roll. The guide-ways 3, 4 may also support a steadyrest 11 clamped by a nut 14 and plate 12 to produce a wedge action which causes the rest to bear against the surfaces 9, 10, 19. The rest is moved along the bed by a pinion 18 and rack 17. The surfaces 9, 10 are perpendicular to a plane extending from their centre to the spindle axis of the machine. Only one intermediate guide-way may be provided. Specification 681,146 is referred to.
Patent GB-791475-A (GB)
Title: Improvements in or relating to cribs or cots for children
IPC: A47D13/06
Filed: 1955-03-07
Abstract: 791,475. Cots; playpens. DISHER, T. F. R. March 7, 1956 [March 7, 1955], No. 6649/55. Classes 52(1) and 52(2) A cot having end frames 1 and side frames 4 connected by bolts 8 can be converted into a playpen by disconnecting the end frames, turning them through 90 degrees in a vertical plane and connecting them again to the side frames. The bed frame consists of of two longitudinal members 11 around which is passed a nylon sleeve 14. Connectors 13 are engaged by bolts 8 passing through some of holes 15 which allow of different levels to be selected. A sleeve of fabric may be passed around the bars 3 of the end frames to prevent a child gaining a foothold thereon.