baber/WOPTO huggingface dataset:
Patent GB-431982-A (GB)
Title: Improvements relating to film feed mechanism for photographic roll film cameras
IPC: G03B19/04
Filed: 1934-09-25
Abstract: 431,982. Photographic roll - film cameras. FRANKE, P., 32c, Wolfenbuttlerstrasse, and HEIDECKE, R., 7, Seesenerstrasse, both in Brunswick, Germany. Sept. 25, 1934, No. 27514. Addition to 426,915. [Class 98 (i)] In a modification of the film-feed mechanism described in the parent Specification, the actuation of the stop device by the joint of the film strip temporarily couples the feed mechanism with a control device which permits feeding of the film until the first section is in position facing the exposure aperture, and then causes a stop to become effective and lock the winding mechanism. The film feed is actuated by a hand crank 29 connected through gear wheels 32, 33, 19 to the spool 2. A pawl 67 prevents backward rotation of the wheel 32. A rotatable disc 30 connected to the crank 29 has a nose 31 which engages with an abutment 38 on a toothed sector 37 to limit the clockwise rotation of the crank, the nose 31 moving a step at each actuation so that the crank movements are successively shortened to compensate for the increase in diameter of the film on the spool 2. The finger 23 actuated by the film ridge acts on a series of pivoted pawls and levers to permit a predetermined amount of winding before locking the mechanism. When the film spool is placed in the spring holders 44, 45, a feeler 5 is engaged, and the bracket 9 to which it is attached is displaced against the action of a spring 8. A nose 60 of a spring catch 61 engages under a lug on the bracket 9 to maintain it in the raised position. In this position also the pinion 36 is out of engagement with the sector 37 so that the counting wheel is not actuated by the film feed mechanism. When the tab 25 engages the pawl 70 on the finger 23, a disc 75 is rotated and a nose 79 on the disc engages with a pawl 80 pivoted to a lever 81 which is rocked thereby against the action of a spring 87. The movement of the lever 81 rocks a pawl 93 anticlockwise and disengages a nose 94 from a lug 95 on the lever 89. This enables the lever 89 to move about the pivot 88 within the limit imposed by the pin 91 and slot 90, bringing a toothed wheel 102 mounted on the lever 89 into engagement with the winding wheel 32. A stud 103 on the wheel 102 is normally spring urged into contact with an abutment 105, but the rotation of the crank 29 causes it to be moved over into engagement with the stop 104, this rotation being sufficient to bring the first section of the film into the exposure position. During the upward movement of the lever 89, the bolt 109 is lifted and held by the ball catch 113, but the winding movement of the crank brings a projection 66 on the disc 65 into engagement with the bolt, which depresses the lever 89 to its original position where it is again held by the nose 94. The downward motion brings a pawl 98 into engagement with the nose 64 on the catch 63, which is rocked so that the bracket 9 is released and the pinion 36 engaged with the sector 37, whereby the film number indicator is coupled to the winding mechanism.
Patent GB-895697-A (GB)
Title: Improvements in and relating to the bleaching of cellulose fabrics
IPC: D06L3/02
Filed: 1959-08-13
Abstract: Unsized cellulose fabrics are cellulose fabrics which have been desized and treated for mote removal, are bleached by impregnating them with an aqueous hydrogen peroxide solution having a pH of 8.5-10 and containing, by weight, 1%-1.75% of hydrogen peroxide, 2%-4% of a molecularly dehydrated salt of phosphoric acid, e.g. sodium tripolyphosphate, sodium hexametaphosphate or tetrasodium pyrophosphate, and 0.3%-0.6% of a sequestering agent, e.g. ethylenediamine tetraacetic acid or a sodium salt thereof or a sodium salt of a pentaacetic acid, so that the fabrics take up 80%-120% of their weight of solution, heating the wetted fabrics to 100 DEG C.-130 DEG C. for 20-90 seconds to remove at least 90% by weight of the water present, and washing the residual chemicals out of the fabrics with water not more than 16 hours after the heating has been completed.  Prior to bleaching, sized fabrics, which may be of cotton, jute or ramie, may be treated with an aqueous enzyme solution containing a detergent, boiled for 1 1/2 hours with a 4% by weight sodium hydroxide solution and washed with water to remove sizing agents and motes.  The hydrogen peroxide may be introduced into the bleaching solution as 35% aqueous hydrogen peroxide or in the form of sodium peroxide.  The bleaching solution may be adjusted to a pH of 8.5-10 by the addition of sodium or potassium hydroxide and may contain a buffer, e.g. 0.4%-0.6% by weight of borax or other boric acid derivative.  Prior to rinsing with water the fabrics may be mercerized with caustic alkali.  Specifications 576,030 and 793,733 are referred to.
Patent GB-857272-A (GB)
Title: Improvements in or relating to means for mounting magnetic transducing heads
Inventor: MORGAN RONALD JAMES
IPC: G11B5/48
Filed: 1958-08-29
Abstract: 857,272. Magnetic recording &c. heads; supporting. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 27, 1959 [Aug. 29, 1958], No. 27737/58. Class 40 (2). A stack of heads 2 for scanning multiple tracks on a magnetic drum 1 is mounted on a member 20 pivotal about a weak link 22 by screw means 23 for alignment of the stack parallel to the drum axis, the head carrier being in turn mounted to a U-form member 5 with two split clamps 6 (and 7, not shown) for adjustment radially and longitudinally of a pillar 3 mounted parallel to the drum axis. To adjust the drum spacing, an arm 9 carries coarse screw means 18, engaging a parallel pillar 4 and fine screw means 19 acting in conjunction with a weak link 17. Pneumatic gauging means at each end of the stack 2 provides for both adjustments. A wedge and screw arrangement (Figs. 4, 5, not shown) facilitates accurate longitudinal adjustment.
Patent GB-423493-A (GB)
Title: Cutting device for button hole- or other sewing machines
IPC: D05B37/02
Filed: 1934-09-27
Abstract: 423,493. Sewing-machines. DURKOPPWERKE AKT.- GES., 2, Nikolaus Durkoppstrasse, Bielefeld, Germany. Sept. 27, 1934, No. 27757. Convention date, Sept. 30, 1933. [Class 112] The buttonhole cutter of a sewing-machine is positively coupled to the main driving shaft by a system of links for positive operation into and out of the cut. A device is provided to prevent premature cutting. The knife 1 is carried by a rod 2 guided on a bar 3. The rod is actuated by a system of levers 4, 5, 6, 7, the lever 7 being moved by a coupling arm 8 returned to inoperative position by a spring 9. The arm 8 has a projection 10 on which the rod 11 bears in inoperative position. A rocker lever mounted in a bracket 16 bears with one arm 17 against the disc 13 and with its other arm 18 against the cam disc 20 keyed on a shaft 19. The shaft 19 is driven at a suitable speed from the main shaft 27 by gears 21 ... 26. As the arm 18 slides on the cam disc 20, the disc 13 and the rod 11 will be shifted by the arm 17 in the direction of the arrow if against the action of the spring 15. The rod 11 slides off the extension 10 to occupy the dotted line position of Fig. 1. When a cam on the disc 20 has passed the arm 18, the pressure of the arm 17 against the disc 13 suddenly ceases and the rod 11 tends to return under the action of the spring 15. This will cause it to tend to press the nose 30 of the lever 8 into a bore 33 to a member 31 continuously moved up and down by a cam 36 on the main shaft 27. The nose 30 cannot enter the bore 33 owing to a safety bar 37 until the strap 32 completes its downward movement and moves upwards. As it moves upwards, the bar 37 is pressed away from the bore by the nose 30 which then enters, positively coupling the knife 1 to the main shaft 27. During the next downward movement of the arm 31 the material is cut and the succeeding movement pulls the knife out of the cut. The spring 9 returns the coupling lever 8 and nose 30 to their initial positions.
Patent GB-774312-A (GB)
Title: Improvements in hydraulic control valves
Inventor: TUNNELL FRANK GEOFFREY
IPC: F15B13/04
Filed: 1954-09-27
Abstract: 774,312. Tractor power-lift mechanisms. HYMATIC ENGINEERING CO., Ltd. Oct. 31, 1955 [Sept. 27, 1954], No. 27804/54. Class 79(1). [Also in Group XXIX] A valve arrangement for controlling a singleacting ram for raising and lowering implements on tractors comprises valves c, d opening out of a space a to which liquid is supplied. The valve c is loaded by a spring g controlled by a stirrup h and member j actuated by a cam i. To operate the ram the cam is actuated by a hand lever o to compress the spring and close the valve c. Pressure builds up in the space a and the valve d is forced open, so that oil can flow to the ram. To lower the implement, lever o is operated to withdraw the valve c from its seat, and, through a lever e and a screw f, to open the valve d and allow the oil to escape through valves d, c to a reservoir.
Patent GB-752306-A (GB)
Title: Underwater joints for subway segments
IPC: E02D29/073
Filed: 1954-09-27
Abstract: 752,306. Subaqueous subways. MAUNSELL, G. A. Sept. 27, 1954, No. 27845/54. Class 68(2) A joint between the two abutting ends of precast concrete subaqueous subway tube sections T, S is formed by forcing a double ring H, K, of projecting plates on the end of the new section S into a block of asphalt A embedded in the face of the already fixed section T and opening a valve V between the occluded space U and the interior G of the fixed section which is at atmospheric pressure. The differential hydrostatic force thus created, acting on the end plate N of the section S, completes the penetration of the plates H, K into the asphalt which was started by hydraulic pressure from a pump X acting on the gasket W in the annulus R.
Patent GB-738298-A (GB)
Title: Wire cutter
Inventor: BAKER JOHN
IPC: B26B17/00
Filed: 1952-11-05
Abstract: 738,298. Cutting pliers. DANITE HARD METALS, Ltd. Nov. 5, 1953 [Nov. 5, 1952], No. 27860/52. Class 61. In pliers for cutting wire the jaws having cutting edges formed by inserts or attached pieces of tungsten carbide or other hard material, the jaws have non-cutting abutment areas which come into contact in order to prevent the cutting edges from making contact with one another. As shown, the non-cutting areas 16 of the jaws 13 are interposed between the wedge-shaped inserts or tips 14 which provide the apical cutting edges 15. In a modified tip, the apical cutting edge lies at the top of the jaw face. In another modification, non- cutting areas are provided at each end of the cutting edge.
Patent GB-446417-A (GB)
Title: A dust-excluding plate or block for fitting into interior corners
IPC: E04F19/04
Filed: 1935-09-26
Abstract: 446,417. Dust - shields for corners. BROWNSON, F. 0., The Cottage, Sharpenhoe Road, Barton, Bedfordshire. Sept. 26, 1935, No. 27908/34. [Class 20 (ii)] A sheet-metal &c. dust-shield for corners of floors, stairs, &c. is formed with a straightedged flange portion F, for attachment to the surface S, and a cylindrical or like curved body portion P having concave edges adapted to fit against the other surfaces M. Specification 414,977 is referred to.
Patent GB-263757-A (GB)
Title: Improvements in and relating to the preservation of wood and the like
IPC: B27K3/38
Filed: 1926-11-06
Abstract: 263,757. Wolman, K. H., Peters, F., and Pflug, H. Jan. 2, 1926, [Convention date]. Waterproofing; proofing against bacteria; proofing compositions; wood, treating with liquids.- Wood and similar material is preserved by treatment with a mineral oil having dissolved therein complex salts of tartaric acid with arsenic and an organic base, such as aniline arsenic tartarate, pyridine arsenic tartarate and similar compounds of quinoline and strychnine. Mineral oils such as coal tar oils, wood tar oils and shale tar oils may be employed as the solvent. Compounds such as phenols, naphthols or other organic bases may be added: also compounds such as copper, lead, and mercury oleates, together with other oils. Any impregnating-process may be used.
Patent GB-1079581-A (GB)
Title: Bore gauging device
IPC: B24B33/06
Filed: 1965-07-01
Abstract: 1,079,581. Honing. MICROMATIC HONE CORPORATION. July 1, 1965 [July 1, 1964], No. 27954/65. Heading B3D. [Also in Division G1] A bore gauging device for use in honing bores comprises a first arm 20 having a pair of first spaced contact portions 28 engageable with spaced points of the bore, a second arm 34 having a second contact portion 32 located intermediate the first contact points and engageable with another point of the bore and spring means 42, 48 connecting the first and second arms for preventing relative pivoted movement therebetween but permitting substantially relative translational movement therebetween. In operation, a spring 66 urges the first arm 20 forwardly and simultaneously springs 42, 48 urge contact 32 out of slot 30 of the arm 26 connecting contacts 28, so that the lower end of the apparatus lies in contact with the bore 68, which is aligned with the bore 14 to be honed. A cam surface assists to push the contact 32 into engagement with the bore 14. In the operative position, the fixed contacts 28 and the movable contact 32 determine the diameter or changes in diameter of the bore, resultant in relative movement between the arms 36 and the arm 20. This relative movement is detected by a contact button 74 through movement of springs 42, 48, and further transmitted by a plunger 112 to an electrical transducer 110, which may be of the capacitive type forming part of an oscillator network.
Patent GB-519821-A (GB)
Title: Improvements in or relating to electrical apparatus comprising parts for containing liquid having electrical insulating properties
IPC: H02G15/10
Filed: 1938-09-26
Abstract: 519,821. Two-part couplings. GENERAL ELECTRIC CO., Ltd., and COATES, H. J. Sept. 26, 1938, No. 27992. [Class 38 (i)] A metal joint-box 1 interconnecting the condenser-type busbars 2, 3, contains a body 11 of non-inflamable liquid such as a halogenated aryl hydrocarbon, for example, " Araclor," which liquid is separated by an insulating pot 7 from a body of oil or other liquid 10 which does not deteriorate when arcing takes place due to the separation of a condenser-type plug contact 6 on a withdrawable potential transformer or circuitbreaker (not shown), from a fixed socket contact 4 which is connected at 8 to the busbarjoint. When 6 is withdrawn, a shutter 13 on the box 1 automatically covers the insulator-orifice 12.
Patent GB-748044-A (GB)
Title: Improvements in or relating to electric filter circuits
IPC: H01P1/202
Filed: 1953-10-12
Abstract: 748,044. Filters. GENERAL ELECTRIC CO., Ltd., and PATTERSON, K. G. Nov. 8, 1954 [Oct. 12, 1953], No. 28006/53. Class 40 (8). A band-pass filter comprises a line 1 and three equally-spaced stub lines 2, 3, 4, the two outer lines having the same susceptance which is m times that of the centre line 3, where m lies between 0.6 and 0.9 and is preferably greater than 0.7. This difference in susceptance may be obtained by making the diameter of the inner conductor 8 greater than that of the inner conductors 9, 10. Each of the stub lines may comprise six separate sections a to f, the sections b to f having an electrical length of “, while the sections a have a length of 0.9 times that of the other sections, and adjustable capacity terminations 11. The sections a, c, e have the same characteristic impedance, the sections b, d have a smaller characteristic impedance, while the sections f have lower impedances than any of the other sections, to improve the frequency/ attenuation characteristic of the filter. Suitable values of impedances are given in the Specification. Expressions are given to explain the choice of the values for m. Specifications 659,811, 659,812 and 696,394 are referred to.
Patent GB-147391-A (GB)
Title: Improvements in or relating to tunnel furnaces
IPC: F27B9/30
Filed: 1919-11-12
Abstract: 147,391. Bigot, A. Sept. 6, 1919, [Convention date]. Tunnel kilns and furnaces.-Consists mainly in provision for direct and muffle heating either alternatively or simultaneously, and comprises also number of minor improvements. Combustion chambers or flues c are arranged in the walls of the firing-zone and communicate with similar but narrow flues in the walls of the preheating zone, near the end of which they connect with the chimney. When muffle heating is required, the flames and gases follow the course just indicated, but for direct heating an outlet to the chimney from the interior of the tunnel is opened, and the flames &c. are then drawn from the combustion chambers c into the tunnel through forwardly directed perforations p in the inner walls m. The combustion-chambers c an.l preheating flues may contain refractory chequer work. The inner walls m are built of highly refractory material, and are corrugated or otherwise formed to increase radiation. The roof is carried by brick walls M, and the tunnel is cornpletely enclosed at the top. sides and bottom, as also the gas-supply flues, bv insulating material such as magnesia adapted to be also airtight. Reinforced-concrete posts and beams B, together with intervening brick walls m<1> and m<2>, complete the structure. Two doors are provided at each end of the tunnel. In the cooling zone the first part is heat-insulated, but the last part is built with a thin heat-conducting wall t which is either open to the atmosphere or has a jacket through which air to be used for drying is passed. A shortened cooling zone is thus possible. The air for combustion, heated by the cooling goods, enters the combustion-chambers at o and meets gas from the producer issuing through the gratings f. A drier may be interposed between the waste-gas outlet and the chimney. The supports for the goods run on refractory wheels, balis, &c. and are composed of refractory parts v and heat-insulating parts u. Specification 132,069 is referred to.
Patent GB-295863-A (GB)
Title: Sewage purifying device
IPC: C02F3/12
Filed: 1927-10-24
Abstract: 295,863. Burgess, S., (Elrod, H. E.). Oct. 24, 1927. Aerating; gravity-separation apparatus.-Apparatus for purifying sewage bacterially comprises a long chamber divided into two compartments by a longitudinal partition which does not reach to the base, means being provided for throwing mixed sludge and liquid as a spray from one compartment to the other. In the apparatus shown a tank is divided into treating-chambers 2 and a settling-chamber 1 by longitudinal partitions. The chambers 2 are further divided into wide compartments 4 and narrower compartments 5 by partitions 3 which do not extend quite to the bottom. Sewage is supplied by pipes 8 to troughs 7 extending above the compartments 5 and is mixed with sludge returned from the settling tank through pipes 27. At the further end of each trough it enters the corresponding treating chamber, in which it is continuously circulated, rising in the narrower compartment 5 and being delivered as spray over the liquid in the wider compartment 4 by a rotating screw 10. Baffle plates 16 are provided in each compartment 5 to prevent a " short-circuiting " flow. From the end of the treating-chamber the sewage passes through an opening 15 to the settling chamber 1, and is finally discharged over an outlet weir 17, Fig. 3. The settled sludge is swept from the floor of the tank by flights 23 on an endless chain 21 and delivered into wells 25 from which it is raised by air lifts 26 to the pipes 27 and a pipe 28 through which surplus sludge is discharged. Angle-irons 24 on the walls of the tank support the upper span of the chain 21. The surplus sludge and sludge from a preliminary settling chamber, as described in Specification 203,899, may be disposed of together in a separate sludge-digestion chamber.
Patent GB-1482281-A (GB)
Title: Electrical generator
IPC: H01L35/28
Filed: 1974-06-25
Abstract: 1482281 Implantable pacemakers COR ATOMIC INC 25 June 1974 [12 July 1973 (2)] 28188/74 Heading A5R [Also in Division H1] An implantable pacemaker, Fig. 3, comprises a power source and circuitry generating pacer pulses on demand, assembled via common housing. The sealed power source 23 consisting of a shielded nuclear heat source and thermopile, described in detail in Division H1, is cradled on shaped printed circuit boards 25, 27 on which are mounted transformer 35, magnetic switch 33, capacitor 31 and solid state circuit package 29 in a titanium shell 43, with a welded-on lid. With the output assembly, consisting of flexible connector 272 attached to output lead 263 gas-tightly sealed via ceramic sleeve 267 in flanged sleeve 261 and surrounded by ferrite RF filter 265, in position resilient neutron absorbent potting rubber 41 is injected into the shell and sleeve 261 welded in position in organ. Connector 272 is then connected to terminal block into which a dummy catheter surrounded by suture boot 283 is inserted and the assembly moulded in epoxy resin 50 so as to leave dimple 51 flush with its surface for earthing to the ribs or skin between which the pacer is implanted. The circuitry, Fig. 13, consists of a multivibrator delivering 1.1 mS 8 mA pacer pulses at a nominal rate of 70 per minute unless inhibited by natural R waves from the heart, or at a rate of 85 when noise interference masks the normal Q-R-S heart complex. This higher rate is chosen to minimise competition with the normal heart rate when in normal rhythm. Amplifier 303 amplifies natural R waves, pacer pulses and noise to trigger generation by monostable 305 of .275 sec square pulses the leading edges of which reset multivibrator 311 to deliver a pulse after 850 mS. During the square pulse monostable 305 cannot be triggered thus preventing stimulation during T wave onset and delay. Noise rate turn-on 307 monitors the output of amplifier 303 and disables it on detecting noise so that no resetting pulses are applied to multivibrator 311, which then produces pacer pulses at the higher rate. The pacer can be made to deliver such pulses even during normal heart functioning to enable a physician to check its operation by using a magnetic external of the body to close, switch 33. The sensitivity of amplifier 303 is so chosen that it responds to R waves but not to abnormal P waves.
Patent GB-1240375-A (GB)
Title: Apparatus for electrolytic polishing
Inventor: HELBACH PAUL
IPC: G01N1/32
Filed: 1969-06-04
Abstract: 1,240,375. Electrolytic polishing of samples for microscopy. EUROPEAN ATOMIC ENERGY COMMUNITY. June 4, 1969 [June 6, 1968], No. 28220/69. Heading C7B. Metal samples 17 are electrolytically polished for electron microscopy purposes in an apparatus comprising a vessel (a) for containing the electrolyte and having an agitator 14, e.g. a magnetic agitator, on the bottom thereof, and at the top an upwardly diverging ground socket 3 formed with horizontal opposite observation apertures 5; an insert member (b) which fits into the vessel and whose central portion forms a conical plug 4 fitting into the socket portion 3 of the vessel (a), the central portion being provided with observation apertures 6 matching those formed in the socket 3 of the vessel (a), and passages 10, 11 being provided in the insert member (b) through which electrolyte can be pumped upwards by the agitator; and a nozzle (c) which fits into the passage 11 of the member (b) and which receives the pumped electrolyte and discharges it at the level of the observation apertures to contact the sample 17 to be polished, the sample 17 being made anodic and a counterelectrode 16 being present. The vessel (a) may be double-walled and provided with inlet and outlet 1, 2 respectively to the space between the double walls for passage of a cooling fluid. The size of the orifices 13 may be varied by use of different nozzles (c). The members (a), (b) and (c) may be formed of glass. The apparatus may be used for polishing of metal plates, crystals and wires &c. For instance, the workpiece may be of titanium or vanadium. For polishing of vanadium, an electrolyte consisting of 20 vol per cent H 2 SO 4  and 8% ethanol may be used.