baber/WOPTO huggingface dataset:
Patent GB-770424-A (GB)
Title: A hand tool for forming pipe or tube seatings
Inventor: PROSSER SIDNEY WALTER
IPC: B21D39/04
Filed: 1954-05-05
Abstract: 770,424. Stamping. HEADLAND, Ltd., T. P. May 5, 1955 [May 5, 1954; Oct. 12, 1954], Nos. 13119/54 and 29353/54. Class 83 (4). [Also in Group XXVIII] A hand tool for forming corrugations or bulges on a pipe or tube for securing a seating member or in making a pipe connection comprises a support member 1, a pair of relatively movable jaws 6, 7 for gripping the pipe 8, said jaws having semi-annular recesses 20, 21 to form, when closed, an annular recess in one face of the jaws, a movable die 22, a distancepiece locatable between said face of the jaws and the die, means for preventing crushing of the pipe when the jaws are closed and means for advancing the die towards the distance piece, said die having an annular recess 23 therein whereby when said die is caused to move towards and abut said jaws there is formed a radial bulge or bulges at or near the end of said pipe. The movable die is located in a screwed sleeve 26 rotatable by a hand nut 29 or by applying a spanner to the end nut 31. Screwed into the sleeve 26 is a member 32 carrying a mandrel 34, the member being rotatable by a spring-loaded handle 37. In one operational embodiment the pipe is inserted and allowed to protrude from the jaws 6, 7 and lightly clamped in position. A hardened steel ball is slipped over the projecting pipe end and a distance piece 43 (Fig. 3) placed over the pips. The mandrel 34 is advanced into the pipe and the die moved into engagement with the end of the pipe whereupon the pipe is pushed back until the distance piece engages the die face. The jaws are then tightened to grip the pipe firmly, the die retracted and the distance piece removed. The die is again advanced to form bulges 45 and 46 on either side of the steel ball to secure it on the pipe. In another embodiment, a radial rib or corrugation may be formed on the end of a pipe for use in a pipe coupling as shown on Fig. 8 (see Group XXVIII). Specification 770,425, [Group XXVIII], is referred to.
Patent GB-139081-A (GB)
Title: Improvements in or relating to machines for sawing metals
IPC: B23D49/02
Filed: 1919-05-26
Abstract: 139,081. Willetts-Adshead, Ltd., and Wright, W. May 26, 1919. Reciprocating-saw machines.-A metal-sawing machine comprises a vertical or substantially vertical reciprocating saw i, the successive strokes of which are maintained parallel to each other, and the saw is maintained in continual engagement with the work during its movement in both directions. The saw-frame h is provided with an extension f which reciprocates in guideways in a slide g adapted to be moved along a guide e by means of a weight r to keep the saw in engagement with the work on the table a. A cross-head k is reciprocated on guide-rods j by a crank o, the saw frame being connected to the cross-head by a pin-and-slot connexion l, k<1>. A pawl u can be engaged with a notch v to hold the saw away from the work, and the forward movement of the saw can be limited by a screw-threaded stop x.
Patent GB-200637-A (GB)
Title: Improvements in and relating to heat exchangers, coolers, and the like
IPC: F28F9/26
Filed: 1922-05-10
Abstract: 200,637. Piggott & Co., Ltd., T., and Marsden. J. R. May 10, 1922. No Patent granted (Sealing fee not paid). Concentric or jacketed straight-tube apparatus; expansion and contraction of tubes, providing for.-In concentric tube surface apparatus for effecting transfer of heat, the ends of the inner tubas are secured to expansion sleeves which pass through the outer wall of the headers or connecting chambers of the outer tubes and the sleeves are jointed to outside connection pipes. Inner tubes b are secured at each end to expansion sleeves a passing through glands on the headers h of the outer tubes. The sleeves have screwed-on flanges c which are bolted to flanges d on the semi-circular connecting pipe e. The flanges c at one end of the tubes may be integral with or welded to the tubes. The flow through the inner and outer tubes may be in the same or opposite direction. The tubes are connected up in series in serpentine fashion the headers being divided into chambers g to connect adjacent pairs of outer tubes.
Patent GB-266576-A (GB)
Title: Process for the production of decorative materials from peat or bog deposit
IPC: B27N3/04
Filed: 1926-05-25
Abstract: 266,576. Viersen, T. May 25, 1926. Making bricks, building and paving blocks,slabs, and tiles.-Peat or bog deposit is cut into pieces ranging from 8-8000 cubic centimetres which are dried to reduce the moisture content to 10 per cent. or less. The pieces are then pressed, without the use of a binder, at a temperature of 40-200‹ C. and pressure of 25-300 atmospheres for the production of decorative plates, slabs. blocks, &c., which may be polished, rubbed down, burnished, or coated with impregnating substances.
Patent GB-1066271-A (GB)
Title: Continuous rotation servo
IPC: G09B9/20
Filed: 1964-03-31
Abstract: 1, 066,271. Electric servosystems. GENERAL PRECISION Inc. March 31, 1964 [May 15, 1963], No. 13210/64. Headings G1N and G1U. To overcome the effect of discontinuities in a rebalancing device driven by a servomotor in a servo system, two similar servo loops are provided in which the discontinuities occur at different angular positions of the motor shaft, the output of the appropriate rebalancing device being removed from the input circuit of the servomotor when the device is close to a discontinuity. In Fig. 1, each amplifier U1, U2 receives an input signal 31, 32 representing periodic functions of a variable quantity being measured, e.g. the heading (or altitude or attitude) of an aircraft. The input signals are arranged so as not to be both discontinuous at any one value of the quantity, in this case being 180‹ out of phase. The rebalancing potentiometers RA, RB are arranged such that the phase position of the feedback signal corresponding to the discontinuity in each is the same as the phase position of the discontinuity of the corresponding input signal. The error signals resulting from summing the input and feedback signals are applied through potentiometer RC and amplifier SA to servomotor M. Potentiometer RC has solid conducting portions 33, 34 at angular positions corresponding to the discontinuities of potentiometers RA, RB and its slider is also driven by motor M, so that the error signal in the upper servo loop only is used near 180‹ and that from the lower loop only is used near 0‹ . The remainder of potentiometer RC permits smooth switching from one loop to the other. In a modification RC is replaced by a switch operated from motor M by a cam. The system may include lag and lead circuits and tachometer stabilization.
Patent GB-526472-A (GB)
Title: Improvements in or relating to automatic tuning arrangements
IPC: H03J7/04
Filed: 1939-03-03
Abstract: 526,472. Automatic tuning control systems. AGA-BALTIC RADIO AKTIEBOLAG. May 3, 1939, No. 13235. Convention date, May 4, 1938. [Class 38 (iv)] [Also in Group XL] The variable impedance for automatic tuning control in a multi-band set comprises a degeneratively-coupled valve, which in series with a number of condensers is shunted across the local oscillator, the arrangement being such that the value of the condensers is smaller for the higher frequencies than for the lower frequencies. The local oscillator valve 10 is back coupled through circuits 12, 13, 14 or 15 when the switch 21 is set for the two short, the medium, or the long wavebands respectively. The switch 21, by means of its third wiper shunts one of the condensers 22 ... 25 in series with the control valve 27 across the oscillator circuit, the condensers being of different sizes to enable equal change of control voltage on 33 to cause equal frequency displacement within the different frequency bands. The anode and cathode of the control valve 27 are connected over 30, 28, 29, 31, 32 and the junction 28, 29 is connected to the grid. This degenerative coupling allows a portion of the anode voltage to be fed back to the grid, the anode impedance being determined by the ratio of 28 to 29 and by the valve amplification factor. The valve, is a variable-mu valve and the amplification factor is controlled by the grid bias fed to the valve by lead 33 from control means (not shown).
Patent GB-1359854-A (GB)
Title: Pressure pick-up for the playback of deformations of a record ca rrier moved in relation to it
IPC: G11B9/00
Filed: 1971-05-05
Abstract: 1359854 Playback of video signals TED BILDPLATTEN AG AEG-TELEFUNKENTELDEC 5 May 1971 [13 May 1970] 13240/71 Heading G5R [Also in Division H4] In a record playback system in which signals, e.g. frequency modulated video signals, are recorded as deformations in the surface of grooves in a resilient record carrier and played back by a pressure pick-up which responds to reaction pressure from the deformations as these are depressed by the pick-up, the record engaging part of the pick-up extends over more than the largest wavelength in the groove and a low pass filter is connected in series with the pick-up output. The record engaging part of the pick-up can be a skid 3 of sapphire or diamond secured to the piezo electric transducer 1 and having a leading edge with a radius of curvature of five or more times the maximum recorded wavelength and a trailing edge having a radius of curvature of half the minimum recorded wavelength. The low pass filter 10 helps to remove the harmonic contact of the signal and the quality is further improved by passing it through a differentiator or high pass filter before demodulation. The capacitive element of the differentiator or high pass filter can be provided by the transducer.
Patent GB-1319704-A (GB)
Title: Double impact mill
IPC: B02C13/20
Filed: 1971-05-05
Abstract: 1319704 Impact mills HAZEMAG HARTZERKLEINERUNGS-UND ZEMENT MASCHINENBAU GmbH 5 May 1971 [5 May 1970] 13272/71 Addition to 1104807 Heading B2A The mill disclosed in the parent specification further comprises a wedged shaped anvil 20 having two faces 21, 25 which is rotatable about a shaft 22 parallel to the shafts of the rotors 2, 3. Shear bolts or rivets 23 form backing means which prevent rotation of the anvil until sheared off by overload of the rotors. A stop 24 prevents the anvil obstructing the rotor when the anvil is rotated about its shaft 22.
Patent GB-344713-A (GB)
Title: Improvements in and connected with vacuum cleaners
IPC: A47L9/04
Filed: 1930-04-30
Abstract: 344,713. Vacuum cleaners. LEHMANN, W., 7, Konigin Luisestrasse, Charlottenburg, Berlin. April 30, 1930, No. 13366. Convention date, April 30, 1929. [Class 8 (i).] The suction nozzle of a vacuum cleaner has an inner casing 3 in which revolves an axle 7 carrying beaters or brushes, and driven by friction from floor wheels 13, 14. A slot 10 in the casing end allows the axle to rise if necessary against a spring 18.
Patent GB-906435-A (GB)
Title: Improvements in power-transmission systems
Inventor: JEFFREE HERBERT
IPC: B64C13/24
Filed: 1960-04-14
Abstract: 906,435. Linkwork. VICKERS AIRCRAFT HOLDINGS Ltd. July 14, 1961 [April 14, 1960], No. 13385/60. Class 80 (3). [Also in Group XXX] A device for normally maintaining equal tensions in cables 16 . . . 19 between an aircraft rudder 15 and a rudder bar 10 and for compensating for a change in length between the latter two members due to temperature changes, comprises two relatively rotatable members carried by a floating pivot which members are biased by a spring or springs to tension the cables. In Fig. 1 the two members comprise two levers 20, 21 pivoted together at 22 and are respectively connected between the cables 16, 19; 17, 18. Springs 23, 24 tension the cables and transmit movement between the cables 16, 18 and 17, 19. In Fig. 2 the two members comprise drums 40, 41 freely rotatable on a common floating shaft 42 and are respectively connected to the cables 17, 18; 16, 19. A spiral spring 43 tensions the cables and transmits movement between the drums. In Figs. 3-5 (not shown) the two cables which in Fig. 2 are attached to one of the drums are attached to individual rings carried by one of the drums. The rings are permitted limited rotation and are lightly sprung relative to their drum, which springs always maintain a light load in the cables. In Figs. 6 and 7 (not shown) one-way ratchet clutches which are engaged on overload are provided between the drums to lock the latter together so that an overload may be applied through the system to release an icedup rudder.
Patent GB-109828-A (GB)
Title: Process of and Apparatus for Setting the Dies of Wire Drawing Machines.
IPC: B24B5/48
Filed: 1916-09-22
Abstract: 109,828. National Wire Manufacturing Co., Connor, R. D., and Slinger, R. P. Sept. 22, 1916. Dies.-Wire drawing dies are re-set by a series of rotating tools the advance of which is regulated by stops. The die, after having had its hole partly closed by hammering, is placed successively on the adjustable tubular supports y<5> which engage the die near the hole and acted on by a reamer 1, burnisher 2, gauge 3, and finishing burnisher 4. The tools 1, 2, 3, 4 are rotated from a belt-driven pulley l through gears i, k, the former having clutch faces adapted to engage sleeves t', feathered on the spindles h<1>, h<2>, h<3>, h<4>, when these sleeves are moved down by hand levers u. The tools are advanced by handlevers wand limited by adjustable stops z. The return of any hand-lever w releases the corresponding clutch by striking a bar w<2> connected to the lever u.
Patent GB-784387-A (GB)
Title: Improved motor road vehicle vibration damper
IPC: B60G13/18
Filed: 1956-05-02
Abstract: 784,387. Dynamic vibration dampers. GENERAL MOTORS CORPORATION. May 2. 1956 [May 31. 1955], No. 13540/56. Class 108(3) A vibration damper comprises a cylindrical mass 20 resiliently maintaining between the ends of a cylinder 12 and having between the outside surface of the mass and inside surface of the cylinder. a clearance for viscous liquid, which is in the form of a thin film on the wall of the cylinder. and which acts in shear to damp oscillation of the mass 20 A passage 22 through the mass 20 prevents damping due to compression of air within the cylinder 12. Rubber buffers 38, 40, are provided to cushion extreme deflection of the mass 20. Only a small quantity 32 of the viscous liquid is provided. This may be a silicone liquid or high viscosity oil. The dimensions of a damper suitable for mounting on a steerable or non-steerable vehicle road-wheel, are given. The damper is mounted as near the outermost extremity of the wheel as is possible.
Patent GB-758767-A (GB)
Title: Improvements in or relating to cobalt-containing azo dyestuffs
IPC: C09B45/20
Filed: 1954-05-10
Abstract: The invention comprises cobalt complexes of dyestuffs of formula <FORM:0758767/IV(c)/1> where X is OH or OCH3, y is H, CH3 or NHCOCH3 and 2 is SO2-alkyl, SO2-NHR11, <FORM:0758767/IV(c)/2> or <FORM:0758767/IV(c)/3> R1 being H, Cl, CH3 or SO2NHR11 and R11 is H, alkyl or alkoxyalkyl, the previous alkyl groups containing not more than 6 carbon atoms, R1 is an aliphatic hydrocarbon radicle of 6-18 carbon atoms and R2 is an alkyl or aryl radicle.  They are made by diazotizing an appropriate aminobenzene and coupling advantageously in an alkaline medium with the required acylacetylaminoalkane with subsequent metallization.  A mixture of acylacetylaminoalkanes may be used. Metallization is effected in conventional fashion. Advantageously less than 1 atom of cobalt is present per molecule of dyestuff as e.g. in 1, 2-complexes.  Wool and silk are dyed from neutral to weakly acid dye baths in greenish-yellow shades. Leather and polyamide fibres may also be dyed in similar shades. Examples and a table are provided illustrating the preparation of the cobalt complexes and their use in dyeing, diazo components used being 2-amino-1-hydroxy-4-ethyl- and -butyl-sulphonyl-benzene, 2-amino-1-phenol-4-sulphonamide, -sulphonic acid methyl-, (31-methoxy and ethoxy)-propyl-, (21-methoxy and ethoxy)-ethyl-, phenyl- and (41-methyl and -methylsulphonamido, 21-chloro and 31-sulphonamido)-phenyl-amides, 2-amino-1-phenol-4-sulphonic acid pyrrolidide, 2-amino-1-hydroxy-6-methyl- and -acetylaminobenzene-4-sulphonamide and 2-amino-1-methoxybenzene-4-sulphonamide and the azo components are 1-acetoacetylamino-hexane, -2-butylbutane, -1-dimethyl-3-dimethylbutane, -octane, -decane, -dodecane, mixed-dodecane and -pentadecane, mixed -octane and -octodecane and mixed-dodecane, -tetradecane and -pentadecane, 1-benzoyl- and -(41-fluoro- and -nitro) -benzoylacetyl-amino-octanes and 1-(31-bromo- and 21-chloro)-benzoyl-acetylamino-hexanes. Specifications 716,753, 736,034 and 743,583 are referred to.
Patent GB-318654-A (GB)
Title: Improvements in or relating to electro-optical cells for use in electrical picture transmission and television systems
IPC: G02F1/07
Filed: 1928-05-09
Abstract: 318,654. Jackson, L. Mellersh-, (Siemens & Halske Akt.-Ges.). May 9, 1928. Drawings to Specification. Copying-telegraphs; television; light valves.-A Kerr cell is operated by modulated carrier current with approximately zero mean potential between the electrodes, and disintegration or deterioration of the electrodes and liquid dielectric is avoided by suitably selecting the materials and by hermetic sealing. The Specification refers to the known practice of applying a biassing potentialdifference of 100 volts to the electrodes in order to maintain the polarity of the liquid dielectric and to ensure working on the sensitive part of the characteristic. This arrangement has the disadvantages, however, that the electrodes acquire a coating of impurity and the asymmetry of the working portion of the characteristic produces a grained effect in the picture. According to the invention, (a) the cell is worked with substantially zero biassing voltage, i.e. near the centre of symmetry of the characteristic, Specification 285,857 being referred to in this connection. Modulated carrier current is applied to the electrodes, the minimum amplitude of the carrier being sufficient to ensure utilization of the straight or sensitive part of the characteristic. (b) Non- corrosible electrodes are employed, such as nickel or nickel-plated copper electrodes with nitrobenzene as a dielectric. With paraldehyde or chlorbenzene as dielectric, however, the electrodes may be of gold, silver or platinum. (c) Aqueous and gaseous impurities are avoided by preliminary heating in vacuo of the electrodes and walls of the cell, and by fractional distillation and crystallization of the liquid. (d) The cell is hermetically sealed against moisture; it ma.v be a closed glass vessel with fused-in electrodes or may be sealed with an enamel cement. Dehydrating or other agents may be kept in the cell for the removal of impurities.
Patent GB-349747-A (GB)
IPC: C25D5/36
Filed: 1930-05-03
Abstract: 349,747. Electrolysis. METALS PROTECTION CORPORATION, 401, West Michigan Street, Indianapolis, Indiana, U.S.A. May 3, 1930, No. 13679. Convention date, May 10, 1929. [Class 41.] Metals, pickling; treating after electrolysis; nickel and chromium, depositing.-Iron and steel articles are prepared for electroplating with other metals by treatment as anodes in a chormic acid, chromate or dichromate bath sufficiently long to produce a brown film thereon. A bath of about 21‹ Be containing 240 gms. CrO3' 2À5 gms. SO4<SP>11> and 5 gms. Cr2O3 per litre is suitable. Concentrations of SO4<SP>11> between zero and 50 gms. per litre may be used, but the higher concentrations produce considerable etching. Concentrations of CrO3 as low as 100 gms. per litre may be employed. A temperature of 25‹ C. and a current density of one or two amps. per sq. inch are suitable ; free gassing should be produced. The film is formed in 5-25 minutes. The coated article may be transferred directly to the plating bath after rinsing or the film or the major part of it may first be removed mechanically by scrubbing with fine pumice stone or by dipping in concentrated sulphuric or nitric acids. The articles may then be plated with nickel or chromium or with nickel and chromium successively. Specifications 264,788 and 267,080, [both in Class 41, Electrolysis], are referred to.
Patent GB-748033-A (GB)
Title: Improvements in pipe coupling devices
IPC: F16L21/08
Filed: 1953-05-15
Abstract: 748,033. Pipe joints. MULLER, J. May 15, 1953 [Nov. 7, 1952], No. 13713/53. Class 99(1). The joint comprises a socket 9 having a smooth, cylindrical bore, a rubber sealing sleeve 3 surrounding each pipe end, a collar 10 fitting within each end of the socket, means such as bolts 12 drawing the collars together to compress the sleeves, and locator means 7 spaced from the collars engaging the pipe ends, and the sleeves. The locators may be circlips engaging peripheral grooves in the sleeves and having cranked ends 8a and intermediate portions 8b which extend into radial slots 4, 6 in the sleeves and pipes. In a modification, Fig. 3 (not shown), the circlips engage peripheral grooves in sphericallyfaced metal rings located in corresponding recesses in the facing ends of the sleeves. In other forms, Figs. 5 and 7 (not shown), a single rubber sleeve bridges the gap between the pipes and has an internal annular groove registering with each pipe end, the grooves being engaged, in one form, by metal rings riveted to the pipes, and in the other by circlips of similar form to that shown in Fig. 2. In a further modification a central rubber sleeve 3 is separated from end sleeves 25, Fig. 9, by washers 26 having internal saw teeth adapted to dig into the pipes.
Patent GB-257550-A (GB)
Title: Improvements in and relating to interchangeable bobbins
IPC: B65H75/26
Filed: 1926-05-31
Abstract: 257,550. Muller, A. D. May 31, 1926. Bobbins. - A bobbin suitable for any type of spinning machine comprises a hollow frusto-conical body 5 open at the bottom and threaded at 6 to receive a disc 7 which is interchangable to suit the particular type of spinning machine with which the bobbin is to be used. The surface is knurled as at 8 to prevent the slipping of the thread or yarn thereon.
Patent GB-528535-A (GB)
Title: Improvements in or relating to lubricating devices
IPC: F16N3/12
Filed: 1939-05-09
Abstract: 528,535. Lubricating devices. KREMER, R. W. May 9, 1939, No. 13821. [Class 102 (ii)] In a lubricating device in which a piston 1 slides along a rod 2 or the like under the action of a spring 6 to force lubricant from a low pressure chamber 3 into a high pressure chamber 4, packing 5 in a box 7 is put under the pressure of the spring 6 through the intermediary of a ring 8. The packing box 7 is formed by a tubular member connected to the piston 1 and of such length as to limit upward movement of the piston. A cross-pin 12 on the rod 2 serves for raising the piston 1. Specification 528,529 is referred to.
Patent GB-729326-A (GB)
Title: An improved carrier for manoenvring slabs, kerbs, and the like
IPC: B62B1/26
Filed: 1952-06-03
Abstract: 729,326. Hand trucks. RUTHERFORD, W. Aug. 24, 1953 [June 3, 1952], No. 13908/52. Class 108 (1). A hand truck for use in combination with lifting means as described in Specifications 645,790 and 701,394, [both in Group XXX], comprises'members 1 and 2 secured together by members 3 and to members 7 and 8 by stays 10, 11 and by plates 4 which carry the road-wheel axle 5. Arcuate recesses are provided near the ends of the members 7 and 8 to engage with the bar 12 of the lifting means.
Patent GB-419079-A (GB)
Title: Improvements in or relating to powder distributing cartons, tins or like containers
IPC: B65D83/06
Filed: 1933-05-13
Abstract: 419,079. Powder-distributing tins &c. COOPER, L. G., 17, Colburn Avenue, Hatch End, Middlesex. May 13, 1933, No. 13959. [Class 18.] A closure for tins, cartons, and like containers, comprises a rigid perforated lid b having an imperforate lining d of readily puncturable metal sheet, of sufficient thickness to resist, after perforation, the forces exerted by the contents against the ragged inwardly directed edges of the perforations. The lid and lining are secured by seaming or the like.