baber/WOPTO huggingface dataset:
Patent GB-1479218-A (GB)
Title: Process for producing self-bonded webs of non-woven carbon fibres and webs so produced
IPC: D04H1/54
Filed: 1975-09-26
Abstract: 1479218 Non-woven carbon fibre fabrics UNION CARBIDE CORP 26 Sept 1975 [27 Sept 1974] 39442/75 Heading C1A [Also in Divisions B5 and C5] Self bonded webs of non-woven carbon fibres are made by spinning carbonaceous pitch fibre from a non-thixotropic carbonaceous pitch having a mesophase content of 40-90% by weight, said mesophase, under quiescent conditions, forming a homogenous bulk mesophase having coalesced domains in excess of 200 microns in size; disposing staple lengths of the spun fibre in intimately contacting relationship to form a non-woven fibrous web; heating the web in an oxidizing atmosphere for a time sufficient to thermoset the surfaces of the fibres so that they maintain their shape on heating at higher temperatures but the interior portions of the fibres are not set; optionally superposing layers of the web to form a laminate; heating the web under pressure in an O 2 -free atmosphere to a temperature sufficient to cause the mesophase pitch in the unset interior portions of the fibres to undergo liquid flow and exude through the surfaces of the fibres and contact the surfaces of adjacent fibres and further heating the web to a carbonizing temperature in an O 2 -free atmosphere to produce a fabric wherein the fibres are bonded to each other by infusable carbon bonds. The fabric may be further heated to graphitize it. The pitch is preferably spun at 310-450 C. and staple lengths of the fibre may be formed into a web by chopping into lengths and wet or dry laying, paper making techniques or are preferably blow spun on to an endless wire conveyer belt which is used to transport the web through the oxidizing atmosphere, said oxidizing atmosphere being circulated downwardly through the web and belt. The web preferably has an areal density of 0À05 -0À5 kg./m. The fibres are preferably oxidized by passage through a plurality of heating zones having progressively higher temperatures to an oxygen content of 1-6% by weight. The oxidizing atmosphere may be O 2 , NO or preferably air. The web, possibly after lamination, is then heated in a non-oxidizing atmosphere to 1000- 2500 C. under pressures of 0À1-5 kPa. The web is preferably transported through the carbonizing oven on an endless carbon cloth conveyer belt.
Patent GB-395450-A (GB)
Abstract: 395,450. Dust-screens for stoves. FAWCETT, H., 73, The Ridgeway, Gunnersbury Park, London. March 9, 1932, No. 7041. [Class 126.] A dust-screen for use when cleaning a fireplace or the like comprises a wholly flexible sheet 1 of transparent material with means for detachably securing it to the fireplace, the securing means consisting in the case shown of suction pads 5 attached to reinforcing discs 4 at the upper corners of the sheet. The sheet is partially lifted, as shown, to enable the cleaning to be done, the operation being visible through the sheet. The edges 2 of the sheet are bound with adhesive tape, paper, &c. Alternative or additional securing means may be provided, such as hooks or clamps attached to the sheet either directly or through elastic connections.
Patent GB-893045-A (GB)
Title: Improvements to fluid bearings
Inventor: COOPER STANLEY
IPC: F16C17/03
Filed: 1959-11-21
Abstract: 893,045. Fluid bearings. ROLLS-ROYCE Ltd. Nov. 10, 1960 [Nov. 21, 1959], No. 39582/59. Class 12 (1). In a fluid-bearing a shaft 11 is supported by pivoted pads 13 having an air film therebetween and the pads have a radius of curvature which exceeds the radius of the shaft by at least twice the minimum thickness of the air film adjacent a radial line joining the centre 24 of the shaft with the centre 18 of a recess 16 in a housing 17; each recess 16 pivotally receives a boss 14 of a pad 13. The clearance orbit 25 of the centre 24 lies within an area bounded by arcs 21, 22, 23 described by the centres of curvature 20 of the pads as they tilt about their pivots. In use, hydrodynamic air flow is generated and the pads tilt clear of the shaft. In a modification, bosses 14 are on the housing and the recesses 16 are in the pads.
Patent GB-1217254-A (GB)
Title: Cinematograph apparatus
IPC: G03B1/22
Filed: 1968-08-19
Abstract: 1,217,254. Film feed mechanisms. SANKYO KOGAKU KOGYO K.K. Aug.19, 1968 [Aug.17, 1967; May 9, 1968], No.39604/68. Heading G2E. An intermittent cine film feed mechanism which advances a perforated film by half the normal frame height comprises a pair of feed claws 10a', 12a' operating alternately ends with a stroke of half the normal perforation pitch, the claw units 10, 12 being mounted as fixed shaft 11 for vertical pulldown reciprocation by engagement of follower 9 on unit 10 with eccentric cam 7 on the shutter shaft 6, and for in-and-out rotation by engagement of pins 10b', 12b' with a face cam gear 15 on driven shaft 16. The claws are spaced by the necessary halfframe distance by means of a collar 13 and are urged together by spring 14. The face cam comprises a single radial slot in the gear 15 which rotates once for two revolutions of gear 8 on shaft 6. In another form, both the eccentric and the face cam are mounted on the shutter shaft. The claw plates (24, 25) Fig. 7 (not shown) are pivotally superposed on shaft (21) and more with cam follower (20) to which they are loosely secured by pin (27) permitting limited in-and-out reciprocation due to face cam (23a).
Patent GB-1432767-A (GB)
Title: Anaesthetists ventilator
IPC: A61M16/01
Filed: 1972-08-25
Abstract: 1432767 Breathing apparatus E GARDEN 8 Aug 1973 [25 Aug 1972] 39621/72 Heading A5T An anaesthetists ventilator comprises a cylinder 28 adapted for connection to an Ayres T-piece 38, and having one or more vents 92 connecting its interior to atmosphere, and a piston 98 reciprocated in the cylinder by drive means 108 to open the vent(s) 92 so that gas supplied through tube 40 and expired air from the patient can pass out of the ventilator or to close the vent(s) so that the gas passes to the patient through a mouthpiece 42 or tracheal tube. The vents 92 communicate with a groove 94 around cylinder 28 and a vent pipe 96. The drive means 108 is a vacuum-operated motor and comprises a spindle 110 on which is fixed an arm 112 which oscillates when vacuum is applied to motor 108 through connection 158 to reciprocate piston rod 100. Motor 108 is mounted on a plate 104 which is adjustable along guideways 106 so that piston rod 100 is also adjustable to permit variation of the relative periods during which vents 92 are closed and open to the patient and hence variation of the inspiration and expiration ratio. This ratio is indicated by a scale located on a cover 24 of the apparatus. A port 48 in the cylinder communicates with a safety valve 58. To aid expiration a venturi may be connected between respiratory tube 34 and T-piece 38, the jet of the venturi supplying the gas and being directed towards the cylinder. In a further modification the venturi and jet are reversed whereby positive pressure in the expiratory phase of operation is assured.
Patent GB-1475377-A (GB)
Title: Heat-sealable heat-shrinkable biaxially oriented polyester film
IPC: B29C49/00
Filed: 1974-09-13
Abstract: 1475377 Polyethylene terephthalate films E I DU PONT DE NEMOURS & CO 13 Sept 1974 [14 Sept 1973 13 June 1974] 40018/74 Heading B5B A heat. shrinkable biaxially oriented polyethylene terephthalate film contains up to 25% of diethylene glycol, propane-1,3-diol, polyethylene glycol, polypropylene glycol, azelaic acid, isophthalic acid, dibenzoie acid, naphthalene 1,4- or 2,6- dicarboxylic acid, adipic acid, sebacic acid or decane-1,10-dicarboxylic acid units, and has a relative viscosity of at least 1À80 (1% concentrated in 60/40 tetrachloroethane/phenol at 30‹ C.), balanced latent shrinkage of 31 to 47%. at 100‹ C., average shrinkage force of less than 1000 p.s.i. at 100‹ C., melting point above 215‹ C. and a haze of less than 5%. The average strength of the heat seals is at least 1000 gm./inch. The film may be melt spun and may be flat or tubular. A preferred apparatus for making the film consists of nip rolls 13, 14 with non-contacting heaters 15 for machine direction stretching from 2À5 to 3À6 x at 65-85‹ C. and a tenter oven 17 for transverse stretching from 2À9 to 4À0 x at 50-85‹ C. The film is then heat set at 65-100‹ C. while allowing 2 to 5% relaxation before passing to wind-up roll 18. The quench drum 23 may have electrostatic pinning means 24 and may be at 19-30‹ C. Calcium phosphate and polyethylene glycol phosphonate may be present in the polymer.
Patent GB-1390620-A (GB)
Title: Automatic frequency control arrangements
IPC: H03J7/02
Filed: 1971-08-26
Abstract: 1390620 Automatic frequency control; frequency comparators MARCONI CO Ltd 5 July 1972 [26 Aug 1971] 40033/71 Heading H3A In an automatic frequency control system comprising a digital frequency comparator, a change in the sense of the error signal produced by the comparator inhibits passage of the error signal to a following memory unit. Received and reference signal are applied to inputs 6, 18 of the comparator, Fig. 4, which comprises a bi-stable 23, inverters 22, 24 and NAND gates 20, 21, 25, 26, 27 of which 20, 21 are cross-connected to form a second bi-stable. If a train of positive pulses arrives at input 6, the first one sets bi-stable 23 to open gate 26 so that subsequent pulses on input 6 are fed to output 11. Similarly the first of a train of pulses on input 18 resets bi-stable 23 to open gate 27 and pass subsequent pulses from input 18 to output 12. With both input signals present and at the same frequency alternate pulses appear on each input to switch bi-stable 23 alternately, without producing an output. With different frequency inputs, output pulses occur on one or other of the output lines depending on which signal is the greater. These signals are passed via switches (14, 15) to a memory (10), Fig. 3 (not shown), which provides the a.f.c. signal to control a VFO producing one of the signals. The outputs from the comparator are also fed to the circuit of Fig. 5, which comprises a further comparator 28 arranged to produce an output only when alternative pulses occur on lines 11, 12 (that is when failure of one of the signals causes a random output). The output from comparator 28 sets bi-stable 29 to produce, on line 35, an output which opens the inhibiting switches (14, 15) and also provides a reset signal via gate 31 to reset counter 30 to zero. Counter 30 then starts its count period, at the completion of which bi-stable 29 is reset to reclose the switches (14, 15) if no further signals occur at the output of comparator 28 during the count period. The comparator of Fig. 4 may be replaced by one of the type giving separate magnitude and sense signals, the circuit of Fig. 5 then responding to a change in sign of the sense signal.
Patent GB-1414644-A (GB)
Title: Patient raising apparatus
IPC: A61H3/00
Filed: 1972-08-30
Abstract: 1414644 Walking frame F A O WAREN 23 Nov 1973 [30 Aug 1972] 40099/72 Heading A6M [Also in Division B8] An invalid walking frame, to raise or lower an invalid up or down a step or stairs, comprises four vertical posts 10 connected by (shaped members) 11, 12 to leave the frame open for access by an invalid along a longer side thereof. A pair of platforms 13 are respectively slidably mounted on end posts 10 and are each coupled to a cable 14 secured to a pulley 16 mounted on a shaft 17. A further pulley 18 of larger diameter than the pulley 16, is freely rotatably mounted on the shaft and has a cable 21 wrapped there around and connected thereto by a pin and socket (19), (20), Fig. 4, 5 (not shown) with the ends of the cable secured respectively to an elastic cable 22 or spring secured to the frame, and to a treadle 26 pivoted to the frame. A ratchet wheel 27 is secured to the shaft 17 and is engaged by a pawl 33 mounted on the pulley 18 to transmit the motion of the pulley 18, on depression of the treadle to the shaft to raise the platforms 13. The ratchet allowing the pulley to rotate in the opposite direction, under the action of the cable 22, to return the treadle to its initial position. A further ratchet wheel 31 secured to the shaft 17, is engaged by a pawl (not shown) mounted on the frame to hold the platforms in their raised positions during the return stroke of the pulley 18 and the treadle. A further pulley 30 is secured to the shaft 17 and has a cable 35 wrapped therearound with opposite ends conected to the frame and to a handle 36 to apply tension to the cable and control the descent of the platforms. In a modification Fig. 7 (not shown) a pair of rods (46) are secured to the platforms to engage a seat and wheels (44) are provided on the frame. In an alternative embodiment Fig. 10 (not shown) the cable 21 and treadle are replaced by a handle (67) mounted on the pulley (66) and in a further embodiment Fig. 9 (not shown) each platform (13) has a separate lifting cable, retaining ratchet and brake, with the lifting cable (56) connected to an elastic cable (57) and an extension rod (58) with a handle 59. In operation the invalid, by using the handles 59, pushes the platforms down to the lower edge of the frame and in so doing tensions the cables (57). Then by shifting his weight from one platform to the other, the platforms will rise under the tension of the cables (57).
Patent GB-845119-A (GB)
Title: A process of treating cellulosic textile fabrics with organo silicon halides
IPC: D06M13/517
Filed: 1957-02-15
Abstract: 845,119. Waterproofing fabrics. ROBBART, E. Feb. 15, 1957, No. 40504/59. Divided out of 845,118. Class 140. Cellulosic textile fabric is rendered waterrepellent by allowing it to acquire a moisturecontent by exposure in an atmosphere of 30 to 90% relative humidity, then passing it continuously through a chamber having an aerosol atmosphere of an organo-silicon halide, then through a neutralizing bath of an alkaline aqueous solution to remove acidic by-products, and then drying the treated fabric. Methyl, ethyl, propyl and butyl silicon halides which may contain some silicon tetrachloride are suitable organo-silicon compounds, and the alkali may be sodium carbonate, bicarbonate or acetate, disodium phosphate or calcium hydroxide dissolved in water to give a solution of pH 7 to 11. A wetting-agent may be included in the neutralizing bath.
Patent GB-1323943-A (GB)
Title: Heat-exchanger
IPC: F28D7/10
Filed: 1970-08-27
Abstract: 1323943 Tubular heat exchangers SVENSKA MASKINVERKEN AB 27 Aug 1970 [3 Sept 1969] 41193/70 Heading F4S A heat exchanger comprises a jacket 1 containing a central tube 2 through which one heat exchange fluid is supplied to a distribution header 8 and thence to a series of helically wound tubes 3, 4, 5, 6 arranged in coaxial layers and extending between the header 8 and a collection header 11. The tubes 5 and 6 which form one layer and are wound in one direction around the tube 2 are arranged to mutually contact and thereby support the tubes 3 and 4 forming a second layer and wound in the opposite direction. A second heat exchanger fluid entering through inlet 15 flows upwards over the helical tubes and leaves the top of the heat exchanger jacket through an outlet 16. (For Figure see next page.)
Patent GB-1001427-A (GB)
Title: Improvements in or relating to current pulse-operated electromagnets
IPC: H03J5/32
Filed: 1963-10-18
Abstract: 1,001,427. Electromagnets. STANDARD TELEPHONES & CABLES Ltd. Oct. 18, 1963 [Oct. 19, 1962], No. 41243/63. Heading H1P. [Also in Division H2] The rapid action of an impulse-operated electromagnet 3 is converted into a slow, steady motion, e.g. for operating an automatic tuning ancillary 13 in a radio receiver, by storing the motion of the electromagnet plunger 2 in a spring 9, latching the armature in its operated position by magnetically or spring-operated detents 11, and controlling the motion of the load pull-rod 12 by a dash-pot 10 and piston 6. At the end of the motion, cone 7 7 separates the detents 11 and allows the electromagnet to return to its original position.
Patent GB-1004648-A (GB)
Title: Improvements in or relating to false ceilings
IPC: E04B9/20
Filed: 1963-10-22
Abstract: 1,004,648. Suspended ceilings. R. RICHTER. Oct. 22, 1963 [Oct. 26, 1962; Feb. 5, 1963], No. 41687/63. Heading E1V. A two-part extensible hanger for a suspended ceiling comprises a pin 8, Fig. 1, about which is coiled a helical spring 10 firmly gripping the pin, the spring 10 being located in an aperture 11 in a strip 1 which is slidably connected to the pin 8 by a strap 12, the pressure of the spring on the pin being relieved by relative movement of the two ends of the spring in a direction to slightly untwist the spring, whereby lengthwise adjustment of the pin relatively to the strip 1 is permitted. The ends of the spring are extended through the aperture 11 as shown in Fig. 2. Adjacent hangers may be connected by rods 17 adjustably connected to the hangers by springs 15 similar to the springs 10 engaging apertures 13 in the strip 1. The rods 17 may carry length markings. The lower ends of the strips 1 are slotted at 2 so as to slidably engage the beaded web of the panel supporting joists 3. Specification 1,004,649 is referred to.
Patent GB-1443237-A (GB)
Title: Microtomes and ultramicrotomes
IPC: G01N1/06
Filed: 1973-09-05
Abstract: 1443237 Microtomes C REICHERT OPTISCHE WERKE AG 5 Sept 1973 [6 Sept 1972] 41849/73 Heading G2J A freezing chamber for a microtome is provided with a lid 21 having a depression 23 extending into the chamber and formed at its base with an opening 22,the depression having a side wall which extends further into the chamber at one side of the opening than at the opposite side. The rim 24 of the depression, which defines the opening 22, lies in a plane at an acute angle between 5 degrees and 15 degrees to the main plain of the lid. The lid is placed on the freezing chamber so that the deeper portions of the side wall cover a rapid cooling unit and so deflect the evaporating gas away from the opening 22.
Patent GB-1482268-A (GB)
Title: Disc turntable
IPC: G11B17/32
Filed: 1974-09-27
Abstract: 1482268 Recording and playback of flexible disc records MCA DISCO-VISION Inc 27 Sept 1974 [1 Oct 1973] 42170/74 Heading G5R A flexible annular disc record is supported on a turntable 12, which has a raised annular shoulder 44 near its centre and is pierced by one or more holes 48, 50 located radially outward of the shoulder 44 so that during rotation air is drawn into the space between the turntable and the record. As shown, the holes 48 open into a groove 46 surrounding the shoulder 44.
Patent GB-1490932-A (GB)
Title: Ink knife assembly for printing machines
IPC: B41F31/04
Filed: 1975-10-15
Abstract: 1490932 Printing machines HEIDELBERGER DRUCKMASCHINEN AG 15 Oct 1975 [19 Dec 1974] 42263/75 Heading B6C An ink knife assembly comprises a knife 3 divided into sections 9 in the part remote from the blade 4, each section having adjustment means. The knife 3 is clamped at 6, 7 and pressure is brought to bear on the sections 9 by two elements one of which passes through hole 10 so that a couple is formed. Hole 10 may be replaced by a slot.
Patent GB-1398205-A (GB)
Title: Stalling device for cattle
IPC: A01K1/06
Filed: 1973-09-11
Abstract: 1398205 Tethering device M GLOGGLER 11 Sept 1973 [15 Sept 1972] 42574/73 Heading A1M A tethering device for animals comprises a collar or the like, slidable on a chain stretched obliquely, between an anchor S, fastened to a wall of a manger 1, and a bracket 13 which is mounted on a cross-member 3. The ends of the chain are connected to the anchor S and a bracket 13 by pins or bolts which are supported in holes 9, 14 respectively. A plurality of holes 9, 14 in the anchor S andbracket 13 allows the angle of the chain to be varied.
Patent GB-1456589-A (GB)
Title: Phase discriminators
IPC: H03D3/02
Filed: 1974-10-02
Abstract: 1456589 Phase detection INTERNATIONAL BUSINESS MACHINES CORP 2 Oct 1974 [12 Nov 1973] 42836/74 Heading H3A A phase comparator comprises: a pair of transistors T1, T2 having their emitters coupled to the collector of a third transistor T3; logic means 8, 10, 12 combining the two input signals 2, 4 to apply to the base of transistor T3, a first control signal comprising a train of pulses whose durations depend on the times of occurrence of pulses in the two input signals; and a bi-stable 6 which is switched in dependence on the frequency relationship between the two signals, the outputs from the bi-stable being coupled to the bases of transistors T1, T2. Two pulse trains W1, W2 to be compared are applied to OR gate 8 and AND gate 10 whose outputs respectively start and reset a binary divider 12 so that the divider only produces an output for the period when the pulses do not overlap. This output enables longtailed pair T1, T2 by turning on transistor T3, and either transistor T1 or T2 conducts depending on whether W1 lags or leads W2. The output from the longtailed pair is a train of pulses width modulated in dependence on the phase difference and having a polarity dependent on which input signal is leading in phase. With a frequency difference a mean D.C. level is superimposed on the width modulated pulses. The comparator is used in a phase locked loop.
Patent GB-1255688-A (GB)
Title: Combination shelf support and anchor
Inventor: MACDONALD FRANCIS X
IPC: A47B96/06
Filed: 1969-08-30
Abstract: 1,255,688. Shelf brackets. P. X. INDUSTRIES. Inc. Aug.30, 1969, No. 43278/69. Heading A4B. A shelf bracket 10 comprises a flat body 12 provided on one side with a shoulder 20 on which the shelf 24 rests, an opening 28 and a registering, integral, resilient finger 26 extending downwardly and outwardly from the body 12 towards the shoulder, and on the opposite side with a ribbed post (18) fitted selectively into one of a plurality of sockets (16) in a cabinet wall 14. To fit the shelf 24 it is pressed downwardly to depress the finger 12 into the opening 28, the finger 12 finally springing back over the top of the shelf edge. A web 32 is optionally provided to engage the front or rear edge of the shelf to prevent its fore-aft displacement.
Patent GB-891633-A (GB)
Title: Method of and apparatus for continuous coating of elongated articles
IPC: C23C2/38
Filed: 1959-12-21
Abstract: <PICT:0891633/III/1> <PICT:0891633/III/2> <PICT:0891633/III/3> <PICT:0891633/III/4> <PICT:0891633/III/5> <PICT:0891633/III/6> Elongated objects are conveyed into a coating tank by conveying screws having axes spaced apart along the length of the objects and threads of varying diameter which co-operate with skids below the screws and extend into the tank, the skids being also spaced apart along the length of the objects being coated.  As shown (Figs. 1) and 2), pipes P are passed through rotating purge chamber 3 into entry chamber 16 of furnace F and deposited singly on to parallel conveyer chains 7 which carry them through heating chamber 17 to bring them to the coating temperature.  They are removed from this conveyer by screw conveyers S, S1 which lower them into coating kettle 19, the end of the pipe controlled by conveyer S being lower than that controlled by conveyer S1, as is shown clearly in Figs. 7 and 9 by the corresponding positions of pipes L to Q respectively.  The pipe is thus lowered into the coating bath in a tilted position so that gas inside is completely purged therefrom.  Beyond the last thread of screw S1 is a slot 45 into which the end of the pipe falls and acquires an opposite inclination, in which attitude it is brought out of the bath by magnets attached to grooves 40 and 42 on screws S and S1.  Surplus coating material is removed from the outside of the pipe by passing it through a ring of jets of steam or air under pressure, while the interior is smoothed by the attachment of a bell supplied with a source of high pressure air or steam to one end of the pipe, surplus coating material being blown out of the other end (Fig. 4, not shown).  In a modification (Fig. 11) a screw conveyer S11 with a double inclined portion 83 moves the pipes into flux bath 80 and then lifts them out again.  In a further modification (Fig. 12) a double thread 86, 87 is shown suitable for passing smaller tubes through the bath for the same duration of immersion but with doubled throughput.