baber/WOPTO huggingface dataset:
Patent GB-922298-A (GB)
Title: Improvements in the method of and apparatus for performing sewing operations
Inventor: SCHMALE CARL
IPC: D05B33/00
Filed: 1961-08-24
Abstract: 922,298. Sewing-machines. UNION SPECIAL MASCHINENFABRIK G.m.b.H. Aug. 24, 1961, No. 30490/61. Class 112. A web of material passing to a sewing-machine is raised above the stitch forming region, fed towards that region in a plane directed towards that region and inclined both to the horizontal line of sewing direction and to a horizontal line extending transversely to that direction and withdrawn from the region by a device situated behind that region. Feeding long lengths of fabrics, dogs co-operating with other feeds, devices for folding work, work guides.-The web passes from between guide rods 16, over the freely rotating rollers 13, and between guide rods 15 which are adjustable out of the horizontal plane. From the rods 15 the web passes to a folding device 19 (see Fig. 3), and past the abutment edge 22 for the folded edge of the web and then to a two-thread lock stitch sewing-machine 1, which has a presser foot 7 constructed as a hemmer. After the hem has been sewn the web passes between a long roller 23 and a short roller 24, the long roller being connected to the drive of the feed dog mechanism to draw off the web which passes away down a shoot 25. The short roller 24 is adjustably inclined to the axis of the roller 23 and is biased against the latter by a spring or by gravity. Stands.-The sewing-machine 1 is supported in an elevated position on a frame 2 having a table top 3. A control stand provided for the operator is provided with a pedal for lifting the presser foot. Driving.-The motor control circuits (see Fig. 5, not shown) include a holding circuit which maintains a starting relay in an energized condition after the starting switch has been released. The holding circuit includes the normally closed contacts of a relay which may be energized to open the holding circuit by a second circuit which includes a lamp and control switches which operate when a thread snaps or the end of the fabric is reached. One control switch may be a mercury switch operated by a pivoted feeler 17 disposed below the lowermost roller 13. A foot switch is provided to enable the motor to be operated when required despite the operation of the control switches due to thread breakage &c. A further switch releases the motor brake to enable the machine to be turned by hand.
Patent GB-1068942-A (GB)
Title: Improvements in the manufacture of sulphamic acid
Inventor: MORRIS WILLIAM HADYN
IPC: C01B21/096
Filed: 1962-08-09
Abstract: <PICT:1068942/C1/1> Sulphamic acid is prepared by reacting urea with sulphur trioxide in a proportion which is not more than about 10% in excess of stoichiometric and sufficient excess sulphuric acid to form a free-flowing slurry containing not more than half its volume as solids while controlling the temperature between 70 DEG  and 100 DEG C. Urea is continuously introduced at 8 into a mild steel vessel divided into compartments 1, 2 having agitators 5.  Oleum, e.g. 24.7%, and when required H2SO4 are continuously introduced through 9, 10 to form a slurry and provide up to 10% excess SO3 and 100-200% excess H2SO4 over equimolar amounts.  The slurry passes from compartment 1 through 3 to compartment 2 and after a total time 2-5 hours is withdrawn at 4.  Sulphamic acid is recovered by centrifuging or vacuum filtration through glass cloth and is recrystallized from 1 : 4 water : mother liquor mixture. Ammonium bisulphate may be recovered from the filtrate which may alternatively be recycled with oleum to the reaction vessel. Fume off-take 6 may alternatively be packed and the acid passed down to absorb SO3, or be cooled to reflux SO3.
Patent GB-675008-A (GB)
Title: Improvements in and relating to the electric heat sealing of films
IPC: B29C65/00
Filed: 1949-11-29
Abstract: 675,008. Seaming non-metallic sheet material. HUDSON, R. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 29, 1950 [Nov. 29, 1949], No. 30568/49. Class 42 (i). [Also in Group XI] Joints are formed in sheets 10 of organic thermoplastic material or sheets coated therewith to seal bags &c. by an electrically-heated metal strip 4 pressed on them by a metal surface 1, the joint and strip 4 being cooled by the metal surface 1 contacting the strip 4 only when the current through the strip 4 has been cut off. The sheets 10, which may be tubular, are placed on a steel base-plate 2 which may be covered with fabric or mica. Current is supplied by wires 5 through a switch 11 to the heating strip 4 of nickel-chromium which passes over rollers 3 and is joined at its ends through insulators 6 to steel wires 8 passing round rollers 9 and joined at their ends by a spring 7, so that the strip 4 is maintained under tension when brought down against the thermoplastic sheets 10 by the cool surface of the reciprocating metal block 1. The strip 4 is heated from a supply of 10-50 volts while the block 1 is raised. The fluid-cooled brass block 1 operates the switch 11 to cut off the current when it is about inch above the thermoplastic. In a modification, flexible spring metal strips on the sides of the cooling block 1 but insulated therefrom carry the heating strip 4, which is contacted by the ,block only when it is pressed against the thermoplastic. The block 1 may be a 'metal plate cooled by a current of air or by circulation of water. The block may be moved by hand or automatically to produce one joint a second. Thermoplastics treated include uncured rubber, rubber hydrochloride, synthetic linear polymers, ethylene, acrylonitrile copolymers, polyamides. The sheets treated include paper, fabric and regenerated cellulose film coated with organic thermoplastics. According to the Provisional Specification, copper strips may be placed on parts of the heating strip 4 not required to heat the thermoplastic.
Patent GB-1066378-A (GB)
Title: Improvements in and relating to movable settling filters
IPC: B01D37/02
Filed: 1964-08-04
Abstract: A movable deposition filter comprises a filter tank associated with two mixing tanks, all the tanks being connectable selectively through fixed connections, the filter tank being mounted upright near one end of a chassis and the mixing tanks near the other end, all controls and instrumentation being mounted at, and accessible from, this other end of the chassis.  One of the mixing tanks is intended to supply filter aid for forming a layer on the filter elements prior to filtration, the other (with agitator) to supply filter aid continuously during filtration.  Preferably the valves in the interconnecting piping are arranged in groups -an inlet group, a mixing group and an outlet group.  In operation, liquid to fill all the tanks is drawn in through an inlet valve and pumped at (14), Fig. 6 (not shown), through a mixing valve to the filter tank (13) and thence, when full, by overflow to the mixing tanks (11, 12) which are thereafter charged with filter aid. Next, filter aid slurry is withdrawn from mixing tank (11) through an inlet valve by pump (14), discharged into the filter tank (13), and passed therefrom along the filtrate pipe back to the mixing tank (11) in a closed cycle.  For the filtration step liquid is drawn in through an inlet valve and mixed in the mixing valve housing with filter aid slurry drawn by a metering pump (15) from tank (12); it then flows through the elements in filter tank (13) to one or two outlet valves.  The next stage is backwashing to remove the cake, for which purpose liquid is drawn in through an inlet valve and pumped through a mixing valve communicating with the filtrate side of the elements in tank (13). The cake accumulates at the bottom of the tank.  Then the filter tank (13) is partially emptied under pressure by closing all inlet and mixing valves, opening an outlet valve, and admitting gas under pressure through a separate valve to the "unfiltered" space in the tank (13).  The liquid is forced up discharge pipes each open at the lower end and extending downward within a filter element nearly to the bottom.  The lower part (31) of the filter tank (13) may then be lowered, swung sideways and tipped about pivots to dispose of the residues.  Where filtering is not required, liquid may be pumped directly from one or two inlet valves through one of the mixing valves to the exterior, the filter being by-passed and all the outlet valves being closed.  Preferably each filter element consists of a hollow perforate cylinder with a closed lower end surrounded by a filter sleeve.  The discharge pipe (mentioned above) has an outwardly-directed flange contacting the upper rim of the element so that the filtrate must flow downwards in the element and then up the pipe to reach the filtrate reservoir (32) above the element-supporting plate (34) in the tank (13).
Patent GB-887010-A (GB)
Title: Improvements in and relating to excavating machine for digging trenches
IPC: E02F3/10
Filed: 1959-09-08
Abstract: 887,010. Trench excavators. ALLARD, P. J. M. T. Sept. 8, 1959 [Sept. 12, 1958], No. 30585/59. Class 68(1). The excavator allows of a trench being formed by the use of a pair of parallel bucket or scraper chain-carrying booms 20 forming the sides of the trench by slitting the ground ahead of an associated bucket ladder 12 which extends down to and between the lower ends of the booms to undercut the earth between the two booms to cause it to collapse on to the bucket ladder for removal from the trench by the buckets of the ladder. The booms and ladder are supported between a pair of cross braced V-shaped side frames, each frame being formed of a pair of struts 11, 22 pivoted together at 15. One strut 11 is pivotally mounted at 10 on a self advancing chassis whilst the other strut 22 pivots about the axis 23 on a vertically adjustable carriage 24. The struts can be moved by suitably placed fluid-actuated jacks to move the booms and the ladder to any desired working position. The chains of the booms and ladder can be driven independently or from a common power source, the speeds of the chains on the booms being greater than those of the ladder. On the rear of the excavator is a reel from which expanded metal strip 35 can be drawn off to cover the open trench formed and to support the earth D excavated from the trench when it is desired that a covered trench should be formed. Specification 819,797 is referred to.
Patent GB-218561-A (GB)
Title: Improved apparatus for washing granular material
IPC: B03B5/20
Filed: 1923-12-05
Abstract: 218,561. Greaves, H. J. Dec. 5, 1923. Jigs.-A washer for granular material comprises a tank A divided into three compartments C, D, E by partitions B', B<2>, the washing compartments C, E being divided by a longitudinal partition F behind which means N are provided to admit and exhaust compressed air to cause pulsations of water through screens G<1> G<2> in front of the partitions F; material supplied at M passes across the screens, heavy material passing to the compartment D through a controlled gap H between' the screens, light material passing out at P and material passing through the screens passing to the compartment D, preferably assisted by spirals &c. S. An elevator J removes the material from compartment D. A number of such washers may be arranged in series.
Patent GB-740163-A (GB)
Title: Improvements relating to apparatus for resolving electrical waveforms
Inventor: MCQUEEN JACK GORDON
IPC: G01S7/12
Filed: 1952-12-04
Abstract: 740,163. Electric analogue calculating systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 20, 1954 [Dec. 4, 1952], No. 30816/52. Drawings to Specification. Class 37. [Also in Group XL (c)] Relates to rotary transformers, e.g. magslips, for use in radar in which a recurrent sawtooth timebase waveform is applied to the rotary primary winding and outputs of amplitude proportional to sin # and cos # are produced at the two stators respectively where # is the angular position of the rotor relative to some datum direction. In such apparatus when the rotor is rotated continuously it functions as a generator and introduces unwanted components into the secondary windings which are in phase quadrature with the wanted components and according to the present invention these unwanted components are neutralized by (1) integrating the output from the sine secondary and combining it additively with the output from the cosine secondary; and (2) inverting the output from the cosine secondary, integrating it and combining it additively with the output from the sine secondary. Suitable resistance-capacity integrating circuits are illustrated in Fig. 2 (not shown).
Patent GB-847403-A (GB)
Title: Method and means for securing the tool of a press to its holder
Inventor: SINGLETON PETER
IPC: B21C26/00
Filed: 1957-10-02
Abstract: 847,403. Pressing plungers and dies. LOEWY ENGINEERING CO. Ltd. Jan. 1, 1959 [Oct. 2, 1957], No. 30832/57. Class 87(2). [Also in Group XXII] A press tool 3 with an outwardly tapered root 3a is secured within a socket 1a of its tool holder 1 by a retaining ring 4 having a complementary tapered bore, which ring is first pre-stressed by axial pressure applied by pressure means 6 and is then locked in position. The invention is used in particular with a forging or extrusion press. In the latter case the tool 3 and retaining ring 4 are first supported from the billet container 7 by a sleeve 6. The holder 1, housing a bolster 2, is lowered over the tool by the main press ram, Fig. 1 (not shown) until the bolster engages the rear of root 3a causing it to pre-stress the ring and expand it radially into engagement with the wall of the socket. An externally threaded outer locking ring 5, biased upwardly by a spring 9, is screwed into the threaded end of the socket and against the retaining ring 4 by means of a spanner 11 and a dog ring 10 with driving dogs 10a engaging the locking ring. The assembly is then withdrawn from the sleeve 6, Fig. 4 (not shown).
Patent GB-902039-A (GB)
Title: Improvements in or relating to air conditioning
Inventor: SLADE ALAN MARCHALL
IPC: F24F11/04
Filed: 1959-09-09
Abstract: 902,039. Ventilating. CARRIER ENGINEERING CO. Ltd. Sept. 7, 1960 [Sept. 9, 1959], No. 30832/59. Class 137. Apparatus for controlling the mixing of two air streams having different characteristics, e.g. fresh air and re-circulated air, comprises a mixing chamber 1 having two inlets 2 and 3 in adjacent walls, one for each of the said air streams, and an outlet 4 for ventilating air. A pivotally mounted obturator is mounted in the chamber and comprises an arcuate damper blade 5 carried by supports 6 at each end thereof, the said supports being attached to struts 8 which extend beyond the pivoting member 12 and have between their free ends a counterweighting link 18. The obturator moves between one limiting position in which one inlet is closed, through intermediate positions in which each inlet is partially closed, and a second limiting position in which the other inlet is closed under the control of actuating means 26 pivotally mounted at 28 and connected to the counterweight link 18 by an adjustable rod 25. The said actuating means, which may comprise a pneumatically operable device or an electric motor, is operated by sensing means responsive to the desired characteristic of the ventilating air and located in the outlet 4. The sensing means may be a thermostat or hygrostat. Inlets 2 and 3 may be provided with perforated plates to provide resistance to air flow as the damper blade is opening the inlet. Specification 902,040 is referred to.
Patent GB-465482-A (GB)
Title: Improvements in or relating to very high frequency electrical oscillation generators
IPC: H03B9/01
Filed: 1935-11-07
Abstract: 465,482. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO.., Ltd. Nov. 7, 1935, No. 30834. Convention date, Nov. 28, 1934. [Class 39 (i)] A short-wave oscillator comprises a tube having an apertured plate electrode surrounding the cathode, and an anode outside the plate electrode receiving the electron discharge through the aperture. In one form, a magnetron tube comprises a filament 3 surrounded by a plate electrode 2 having a slot 5. Electrons are drawn by a high-potential anode 6 through the slot 5. The anode circuit is tuned by a condenser 8 having a movable slider 9 and may be coupled by a line 11 to an antenna 10, or a reflector 16 may be provided and the tube may radiate directly. In a modification a grid may be provided between the plate 2 and the filament and the tube may be operated on the Barkhausen-Kurz or Gill-Morrell principle. The anode 6 may be positioned on one side of the slot 5. It is stated that with a magnetron as shown in Fig. 1, an output of 1225 watts is obtainable.
Patent GB-603051-A (GB)
Title: Improvements connected with rocking horses
IPC: A63G15/00
Filed: 1945-11-17
Abstract: 603,051. Rocking horses. SANDERS, E., HELLIWELL, E. G., and RANSOM, J. Nov. 17, 1945, No. 30914. [Classes 136 (i), 136 (ii) and 136 (iii)] [Also in Group XV] A rocking horse a is mounted upon a wheeled support by means of a transverse pivot rod b at the apex of a triangular frame c, the base member being supported by means of brackets on an axle d on which is mounted a pair of wheels e, the said mounting of the horse being such that rocking motion is transmitted from the body by means of pivotal links and j2 coupled at their outer ends to the body forwardly-and-rearwardly at h and at their inner ends to a one-way propellant mechanism at k<SP>2</SP>, the said mechanism being disposed substantially beneath the fixed pivot b and carried on the axle d, additional supporting wheels f and g being provided forwardly and rearwardly of the wheeled support, and the transmission of the rocking motion to the one-way propellant mechanism causing the base to traverse in a forward direction. In the form shown in Fig. 3, the one-way propellant mechanism comprises a gapped disc l keyed or bolted to the axle d and surrounded by two flanged half casings k and k<SP>1</SP> bearing integral lugs k<SP>2</SP> to which the links j and j are coupled. Located in the gaps l<SP>1</SP> are balls or rollers m which constitute anti-friction one-way coupling means between the inner sides of the flanged peripheries of the casings and the bases of the gaps, the said bases being inclined to provide a wedging effect. The disc l is almost as thick as the distance between the inner surfaces of the casings, but can nevertheless move freely within them, and two series of balls are provided, each series to operate with one casing, and being separated by a locating ring. On moving the head of the horse downward, the link j<SP>1</SP> will be pulled upward, this pull transmitting a rotational movement to the half casing k<SP>1</SP> to which it is attached. This in its turn transmits a forward traverse to its series of balls and causes disc l to rotate and with it the axle upon which it is fixed, and in consequence the horse and base proceed forward. A pawl and ratchet mechanism may be substituted for the mechanism shown. Steering means may also be incorporated.
Patent GB-1172533-A (GB)
Title: Improvements in Window Stays
Inventor: BROWN JOHN
IPC: E05C17/20
Filed: 1966-07-09
Abstract: 1,172,533. Window stay. J. BROWN. 7 Aug., 1967 [9 July, 1966], No. 30940/66. Heading E2F. In a stay of the kind comprising a rod 10 pivotally fixed at one end 11 to a window frame and having a sliding fit engagement with a slipper block 12 secured to the frame of a window pane, a limit stop in the form of a knob 14 is mounted on a spindle 15 at the free end of the stay rod 10 for rotation relative thereto and a helical spring 18 is compressed between a shoulder 19 on the spindle 15 and an inwardly turned lip 20 of the knob 14, whereby the flat base 16 of the knob is pressed into frictional contact with the adjacent surface of the stay rod 10. A projecting abutment 17 on the knob 14 closes the end of the channel-sectioned stay rod 10 to prevent separation of the slipper block 12 from the rod 10. The bore formed in the knob to receive the spindle 15 is closed by a plug 21. To permit separation of the slipper block 12 from the stay 10, the knob is moved upwards against the spring 18 and then rotated. Rotation is in one direction only, due to the spindle 15 being offset from the medial plane of the stay (Fig. 1a). In a modification (Figs. 2 and 2a, not shown), the stay rod 22 is a flat strip, the slipper block 23 is V-shaped and is formed with a channel for taking the rod 22, and the knob 25 has a pair of projections 26 which enter recesses cut adjacent the ends of the rod 27.
Patent GB-1418149-A (GB)
Title: Salts of cephalosporins
IPC: C07D501/00
Filed: 1973-06-29
Abstract: 1418149 Gephalosporin salts TAKEDA YAKUHIN KOGYO KK 29 June 1973 [30 June 1972 30 Jan 1973] 30969/73 Heading C2C The invention relates to novel salts of an acid cephalosporin with arginine or lysine, which salts are prepared by reacting the acid cephalosporin with arginine or lysine by known methods. Acid cephalosporins are those having at least one free acid radical or which may be converted to alkali or alkaline earth metal salts, which salts contain a radical derived from an acid radical and linked to an alkali or alkaline earth metal. The acid cephalosporin may have a mono- or di-substituted aliphatic carboxylic acid acylamido group at the 7-position of the cephem ring. Suitable acid cephalosporins are illustrated by the following general formula wherein R<SP>1</SP> represents a phenyl, 2-thienyl, phenoxy, 1-cyclohexenyl, tetrazolyl, cyano, 4- pyridylthio, phenylthio, (1 - imino - 2<SP>1 </SP>- phenyl ethyl) - amino or 2 - (31 - sydnon) group, R<SP>2</SP> represents hydrogen or a sulpho, carboxyl, amino, methyl or ethyl group, R<SP>3</SP> represents hydrogen or methoxy and X represents hydrogen or an acetoxy, alkoxy, substituted thio or tertiary ammonium group. Arginine or lysine may be used in the d, l or dl forms, preferably the l form. There is exemplified the preparation of the lysine and/or arginine salts of (i) 7-(2<SP>1</SP>- thienylacetamido) - cephalosporanic acid, (ii) 7- (21 - thienylacetamido) - 3 - (6<SP>11</SP> - (311 - methylpyridazinyl) - thiomethyl) - 3 - cephem - 4- carboxylic acid - 2<SP>11</SP> - oxide, (iii) 7 - cyanoacetamido - cephalosporanic acid, (iv) N - (7 - (α- sulphophenylacetamido)- ceph - 3 - em - 3 - ylmethyl) - pyridinium - 4 - carboxylate, (v) 7- tetrazolylacetamido - 3 - (51 - (2<SP>1</SP>- methylthiazolyl) - thiomethyl) - 3 - cephem - 4 - carboxylic acid, and (vi) N - (7 - (α - sulphophenylacetamido) - ceph - 3 - em - 3 - ylmethyl) - (4 - carbamoyl)-pyridinium-4-carboxylic acid.
Patent GB-965408-A (GB)
Title: Hand-vice
IPC: B25B1/10
Filed: 1959-09-11
Abstract: 965,408. Clamps. S. G. YOUNG. Dec. 9, 1960 [Sept. 11, 1959], No. 31063/59. Heading B4W. A hand vice comprises two clamping arms 1, 2 interconnected for parallel movement and carrying jaws 5, a screw 7 being fixed at one end in a socket 8 in the clamping arm 1 by a pin 9 and projecting through a hole 10 in the arm 2, a nut 11 being provided at the other end of the screw. A spring 12 urges the arms apart. A pair of crossed links 14 hinged together at 15, have their ends mounted in guide channels 13 in the clamping arms. One end of each link is pivoted at 16 in an associated guide channel 13, the other end of each link being provided with a roller 18 adapted to ride freely along the other guide channel 13 whenever the jaws are moved.
Patent GB-1531889-A (GB)
Title: Charge transfer devices
IPC: H04N5/3728
Filed: 1976-07-26
Abstract: 1531889 Charge-coupled devices SONY CORP 26 July 1976 [31 July 1975] 31068/76 Heading H1K Directionality of charge transfer in a CCD is obtained by projecting portions 15b of a channel stopper region 15 which otherwise runs parallel to the direction of charge transfer. Fig. 4 shows an imaging array including, is an N-type Si substrate, P-type zones which define imaging elements 14 and an N<SP>+</SP> surface channel stopper region 15 which surrounds each element 14 except for a gap 26 through which charge can be transferred to a transfer region 12 of a vertical shift register 13. Opposed N<SP>+</SP> projections 15b separated by a gap 16 provide potential well asymmetry to give directionality. The invention is stated to be applicable to buried channel CCDs.