baber/WOPTO huggingface dataset:
Patent GB-525863-A (GB)
Title: Improvements in or relating to portable motor driven tools
IPC: B23B45/00
Filed: 1939-03-02
Abstract: 525,863. Drilling-machines. INDEPENDENT PNEUMATIC TOOL CO. March 2, 1939, No. 6853. Convention date, March 30, 1938. [Class 83 (iii)] In a portable motor-driven hand tool for drilling, screw-driving, reaming &c., the motor casing is open at the rear end and carries a bearing for the motor beyond the open end, the latter being closed by a cover having a handle projecting therefrom from a point located forward of the motor bearing. The motor casing 1 is open at the rear end and is formed integrally with a bridge member 3 carrying the rear bearing 10 for the motor spindle. The brush gear 15, 16 co-operating with the commutator 12 is also carried by the casing, and the whole is enclosed by a cover 20 formed integrally with a D-handle 18, 19 projecting from the casing 1 from a point a forward of the bearing 10. Projections 26 on the cover engage recesses 27 in the casing and the cover is secured by screws 21, 30 entering bosses 22, 31 in the bridge 3 and casing 1 respectively. Cooling air for the motor enters the casing by holes 24 in the cover and is expelled through holes 25 at the front end of the casing. The front bearing of the motor, which is of the distributed winding type, is carried by a plate 6 on a gear casing 2 attached to the casing 1 by bolts &c. 7, and the transverse handle 34 is cast integrally with the casing 1 and has a removable cover 33 for giving access to the switch.
Patent GB-131082-A (GB)
Title: Improvements in Varnishes or Dopes more especially Intended for Applying to the Fabrics of Aeroplanes and other Aerial Machines.
IPC: C09D101/12
Filed: 1918-04-24
Abstract: 131,082. Sutherland, D. M., and Wall Paper Manufacturers, Ltd. April 24, 1918. Varnishes containing acetyl-cellulose or its equivalent, or nitro-cellulose or celluloid, are thinned with borated benzol, consisting of boracic acid and benzol, for the purpose of imparting fireresisting qualities. Particular examples of varnishes given contain the following ingredients in varied proportions-acetyl-cellulose, acetone or other solvent, benzol, borated benzol, and a small proportion of benzyl alcohol.
Patent GB-177033-A (GB)
Title: Testing apparatus for breathing appliances
IPC: A62B27/00
Filed: 1921-03-02
Abstract: 177,033. Macaskill, D. March 2, 1921. Testing efficiency of breathing appliances. - Breathing-apparatus such as those in mine rescue helmets are tested for leakage by means of a tube k joined to a pressure supply or a vacuum and fitted with a tap l and a gauge m. The mouthpiece is clamped by a plate e with studs i and fly-nuts to a plate f on the tube k chambered to take the usual teeth pads d.
Patent GB-164485-A (GB)
Title: Improvements in devices for checking shuttles or weft carriers in looms for weaving
IPC: D03D49/52
Filed: 1920-03-08
Abstract: 164,485. Smith, E., and Smith, H. March 8, 1920. Checking shuttles; swells.-A compound swell lever is constructed so that upon the main lever pivoted to the lay are pivoted second and third levers arranged so that swells on them first check and then stop the shuttle or weft-carrier. Fig. 9 shows such a device comprising two levers 2<a>, 2b on a main lever 2 pivoted at f to the lay and formed with a swell b, which checks the shuttle as it enters the box. The shuttle then contacts with the inclined or curved swell d adjustably attached to the lever 2a, which is pivoted at g to the lever 2, and bears against an adjustable screw 11 on the lever 2b, which is pivoted at h. The free end of the lever 2<b> bears against the shuttle stop.-motion lever, which causes the swells b, d to bear against the shuttle and stop it in the correct position. In a modification, Fig. 7, the levers 2<a>, 2<b> are formed and pivoted as shown, the pivot g being between the pivots f, h. A cap 13, Fig. 9, prevents the lever 2 from moving unnecessarily.
Patent GB-757248-A (GB)
Title: Improvements in devices for converting an ultrasonic image into a visible electron image
IPC: H01J31/50
Filed: 1954-03-10
Abstract: 757,248. Ultra-sonic inspection devices. VENNER, H. A. L. (Veb C. Zeiss Jena). March 10, 1954, No. 7006/54. Class 118(2) [Also in Groups XL(a) and XL(b)] The cold cathode of an image intensifier tube comprises a piezo-electric oscillator coated with emissive material. The apparatus is used for testing the internal structure of materials. Ultrasonic radiation from a quartz oscillator 3 is reflected by a curved mirror 5, through objective 6 and on to the test object 7, the reflected radiation being transmitted by objective 6 and lens 8 to a quartz plate 10 tuned to the ultra-sonic frequency. An emissive layer 11 liberates electrons under the influence of the electric charge produced on the quartz plate 10, the phase-rotating device of the plate and the charges on the electrodes being such that no emission occurs except when interfering points 9 in the material disturb the phase of the ultrasonic radiations. The ultrasonic vessel is full of fluid 16, the portion between the partition 17 and the elastic end wall 15 of thin foil being under pressure to ensure contact between the wall and the object.
Patent GB-589401-A (GB)
Title: Improvements in or relating to fastening devices for connecting two separable members
IPC: F16B39/32
Filed: 1945-03-21
Abstract: 589,401. Screw fastenings ; bolting. NAPIER & SON, Ltd., D., and MARCELL, R. C. March 21, 1945, No. 7173. [Classes 44 and 89 (i)] In fastening sheet-metal parts such as aircraft cowlings and motor-vehicle bonnets, quick-pitch screws are anchored to one part and provided with locking-means and anchor nuts having float are secured to the other part. The screw A, Fig. 6, is retained in a polygonal casing G having a lower flange G<1> and a cover plate J spot welded &c. to an upper flange G<2> holes G<3> being provided for attaching to the part H. An enlarged part D of the screw allows axial float but retains the screw in the casing. A transverse hole mounts balls F and a compression spring D<1>. The balls project into the corners of the casing to lock the screw. Only one ball may be employed. The nut K is provided with a number of arms K<1> allowing float but not rotation in a casing formed by a square plate M having flanges, two of which are bent inwards at M<2> over the arms K<1> and the other two M<3> can be bent as shown in dotted lines, Fig. 6, for attachment to the other part L. The screw is formed at C<1> for a driver or may be provided with wings or other means for rotating it and is hollowed at C<2> for lightness. The casing G may be circular and fluted to engage the balls.
Patent GB-125369-A (GB)
Title: Improvements in or relating to Braiding Machines.
Inventor: WALTER ERWIN
IPC: D04C3/00
Filed: 1919-03-22
Abstract: 125,369. Walter, E. April 6, 1918, [Convention date]. Braiding-machines.-Relates to machines in which the drivers 5, Fig. 3, engage between upper and lower guide-disks 6, 7 on the bobbin. and consists in so mounting the drivers upon their bolts that they are free to move vertically in order to reduce wear upon the guide-plate. The distance between the guide-disks is chosen, in known manner, to correspond exactly to the thickness of the drivers; but when, upon wear of the disks and drivers, undue tilting of the bobbins results, the drivers are forced down on to the lower guide disk 3, Fig. 1, by a collar 8, screw &c. to enable the machine to be used for a further period.
Patent GB-330011-A (GB)
Title: Improvements in or relating to the manufacture of soluble wood ethers
IPC: C08B11/20
Filed: 1929-03-05
Abstract: 330,011. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). March 5, 1929. Wood ethers, obtaining.-Chlorine dioxide is prepared electrolytically and employed for the treatment of a wood ether to increase its solubility in organic solvents. In an example, a wood ether is suspended in water, chloric acid together with a small quantity of sodium vanadate is added and the m,ass electrolyzed with a current of 5 amperes per square decimetre at 5 volts, the chlorine dioxide evolved being immediately consumed by the wood.
Patent GB-652431-A (GB)
Title: Improvements relating to the manufacture of papermaking pulp from straws, reeds, esparto grass and other annual growths
IPC: D21C9/14
Filed: 1948-03-09
Abstract: A pulp suitable for paper manufacture is obtained by subjecting straw, reeds, esparto grass, or other annual plant growths to a boiling treatment under a pressure above atmospheric of up to 20 lbs. per square inch with a 0.5 per cent caustic soda solution, then after draining and washing, treating with about 2-6 per cent of sodium chlorite or chlorine dioxide, and then bleaching with a hypochlorite or other bleaching agent.  The boiling treatment with caustic soda may be continued for 4 hours and the treatment with sodium chlorite or chlorine dioxide may be effected at 70 DEG  C. for 2 hours, the pH being 5.0.  For the subsequent bleaching, an alkaline solution of calcium hypochlorite may be used.  The process may be applied to the treatment of linseed straw and flax waste.  Specification 570,259 is referred to.
Patent GB-1426968-A (GB)
Title: Winch appliance
IPC: B66D1/74
Filed: 1974-02-18
Abstract: 1426968 Winches WESER AG 18 Feb 1974 [17 Feb 1973] 7267/74 Heading B8B A winch appliance comprises a friction winch which includes drive pulleys 1, 2 around which a rope 11 is wound, the rope passing to one of two storage drums 16, 17, each of the drive pulleys comprising a hub (13) on which shell segments (12) formed with rope receiving grooves (10) are detachably mounted, Figs. 2, 3 (not shown), the shell segments being attached to the hub by means of flank rings (15), the segments being prevented from rotating relative to the hub (13) by means of keys (14). The shell segments of each drive pulley may be replaced by shell segments having grooves of different forms or sizes to accommodate correspondingly shaped ropes located on the storage drums. The drive pulleys 1, 2 are mounted respectively on shafts 3, 4 associated with respective pairs of hydraulic drive motors 5, 6 and 7, 8 while the storage drums 16, 17 each have an hydraulic drive 22 or 23. Located between the drums 16, 17 is a common rope guiding device which includes a spindle 18 on which deflecting rollers 20, 21 are mounted.
Patent GB-625896-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C11/11
Filed: 1946-03-08
Abstract: 625,896. Tyre moulds. FIRESTONE TIRE & RUBBER CO. March 8, 1946, No. 7344. Convention date, March 12, 1945. [Class 87 (ii)] [Also in Group XXXIV] In pneumatic tyre treads, such as described, in Specification 625,925, [Group XXXIV], comprising deep traction-ribs 11 ... 14, the bases E of the intervening grooves are now formed flat, or concave, in the circumferential direction of the tyre. Figs. 8 and 9 show a two-part mould 31, 32 with rib-forming cavities 33... 36 spaced by flats F to produce the required baseformations in the tread-grooves.
Patent GB-761897-A (GB)
Title: Lubricant composition
IPC: C10M159/00
Filed: 1954-03-12
Abstract: 761,897. Oil-soluble copolymers. CALIFORNIA RESEARCH CORPORATION. March 12, 1954 [March 30, 1953], No. 7357/54. Class 2 (6). [Also in Group III] Oil-soluble copolymers of molecular weight at least 2000 are derived from olefinically unsaturated oil-solubilizing compounds containing C 4  to C 30  aliphatic groups, and α,#- unsaturated dicarboxylic acids of from 4 to 8 carbon atoms, a proportion of the carboxyl groups of the acid being ester linked to a poly-1,2-alkylene oxide type polyglycol of molecular weight between 106 and 3000, there being 2 to 15 free carboxyl groups for each ester linked polyglycol radical. Dicarboxylic acids specified are maleic, fumaric, itaconic, glutaconic, citraconic, mesaconic and α-hydromuconic. Alternatively the anhydrides may be used and subsequently hydrolysed. The oilsolubilizing compounds specified include olefins, ethers and esters and in particular, C 8  to C 30  alkyl esters of acrylic, methacrylic, crotonic, maleic, fumaric, citraconic, mesaconic and glutaconic acids, and fatty acid esters of allyl and methallyl alcohols. The polyglycols used contain radicals having the general formula -(R 1 -O)n-R 2 , wherein R 1  is a 1,2-alkylene radical, n is the number of alkylene oxide units in the polymer and R 2  is hydrogen or an alkyl, acyl, cycloalkyl, aryl, aralkyl or alkaryl group and may be substituted by one or more of -CO 2 H, -OH, -NO 2 , -SH, -NH 2 , -CO.NH 2 , -NHR 3  or -CONHR 3 , wherein R 3  is hydrogen or hydrocarbon group. The copolymers may be derived from individual components, or the glycol radicals and/or oilsolubilizing groups (or additional groups) may be introduced into an intermediate acidic copolymer, or a glycol ester copolymer may be partially hydrolysed. The copolymers may be prepared in bulk or emulsion but preferably in solution, e.g. in benzene, toluene, xylene or petroleum naphtha, with a catalyst such as dibenzoyl, acetyl, di-t-butyl or di-t-amyl peroxide, t-butyl hydroperoxide, azodicyclohexanecarbonitrile or azodiisobutyronitrile. The catalyst and solvent may be added incrementally during the reaction. The copolymers impart detergent and antiwear properties to lubricating oils (see Group III).
Patent GB-1537354-A (GB)
Title: Apparatus for testing cans for leaks
IPC: G01M3/00
Filed: 1976-02-25
Abstract: 1537354 Testing cars for leaks KOMBINAT UMFORMTECHNIK HERBERT WARNKE ERFURT VEB 25 Feb 1976 [26 Feb 1975]  07410/76 Heading G1S A leak testing apparatus for cars comprises rotatable member 2 having a series of peripheral test pockets, each pocket being opened and closed by means of a rectilinearly movable slide 13 where position is controlled by a cam lock 21 and cam follower roller 20 and which operates to open and close the pocket via a rack and pinion which transforms its linear motion into the rotary motion of a lever 16 coupled to the test pocket. The slide moves on a bearing block 12, the rack being carried by the slide and the pinion 15 by the block. The test pocket includes a cover 5 guided for linear opening and closing motion by tubes 8 moving in bushes 9 and joined by crossheads 7 and 10, the cover being mounted on crosshead 7. Crosshead 7 is coupled to lever 16 by a member 18.
Patent GB-1524801-A (GB)
Title: Use of a video signal recorder/reproducer for recording and reproducing pulse signals
IPC: G11B20/12
Filed: 1977-02-22
Abstract: 1524801 Using video recorder for recording and playback of pulse signals SONY CORP 22 Feb 1977 [24 Feb 1976] 07410/77 Heading G5R Pulse-encoded information, e.g. derived from audio signals, is adapted for recording on a video recorder by the addition of simulated horizontal and vertical synchronizing signals. These signals are inserted into gaps left by timecompression of the information pulse trains which is achieved by writing the pulse trains into an addressable memory 8 at one rate and contemporaneously reading them out at a faster rate.
Patent GB-823296-A (GB)
Title: Improvements in or relating to the dehydrogenation of olefins
IPC: C07C5/32
Filed: 1957-03-06
Abstract: In the dehydrogenation of a mono-olefine having at least four carbon atoms in the unsaturated chain, particularly butylenes, using a catalyst comprising calcium nickel phosphate and comprising the alternate steps of dehydrogenation at 950-1350 DEG  F. and catalyst regeneration, increases in D F are prevented as the reaction proceeds by decreasing the duration of the process and/or the temperature of the reactants.  The D F is the difference in temperature between the maximum temperature reached in the catalyst bed during regeneration and the dehydrogenation feed temperature.  The dehydrogenation step is carried out with a mixed feed of steam and olefine, the regeneration with mixed steam and air; the temperatures of the two feeds and the durations of the two periods are generally about the same.  The catalyst is preferably calcium nickel phosphate-chromium oxide, such catalyst being described in Specification 634,580.  The process is preferably carried out as in Specification 745,957, wherein part of the dehydrogenation is effected at least 15 DEG  F. below the desired main temperature and subsequently the temperature is increased, the D F being maintained below 80 DEG  F.  D F is decreased by decreasing the duration of the dehydrogenation period and/or the temperature of the dehydrogenation feed and vice versa, and by suitable adjustment of either or both D F can be prevented from rising or falling as desired.
Patent GB-571728-A (GB)
Title: Improvements in or relating to bobbins having moulded plastic material bobbin heads
IPC: B65H75/14
Filed: 1943-05-11
Abstract: 571,728. Bobbins. STEVENS, A. H. (Columbian Rope Co.). May 11, 1943, No. 7477. Drawings to Specification. [Class 120 (iii)] A bobbin comprises a spindle and a head at each end, each head being formed by a mass of hard fibres, e.g. sisal, manilla, &c., constituting a filler and a thermosetting or thermoplastic binder, e.g. a phenol-formaldehyde resin of the heat-hardenable type, moulded under pressure and heat, the fibres, groups of which are disposed transversely in tufts through the heads, imparting substantial resistance to compression, the heads being similar to natural wood as regards density, porosity and weight. The surface portions of the bobbin heads, which may be laminated, preferably have a greater proportion of binder but otherwise it is uniformly distributed. The transverse tufts of hard fibres are formed by a needling operation. The proportions, by weight, 60 per cent fibre to 40 per cent binder are stated to give good results. Specifications 547,636 and 547,637, [both in Group V], are referred to.
Patent GB-548467-A (GB)
Title: Relay
IPC: H01P1/12
Filed: 1941-06-13
Abstract: 548,467. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd. June 13, 1941, No. 7500. Convention date, June 27, 1940. [Class 38 (v)] A switch for "switching" the central conductor 2 of a coaxial conductor 1, 2, is mounted within the enveloping conductor 1 and is operated from outside, e.g. by an electromagnetic coil 6. In the form shown, when the coil 6 is energized, magnetic strips 4, 5 mounted in a glass envelope 3 and electrically connected to two separated portions 8, 9 of the conductor 2, move into engagement. In a modification, a switching device is situated at the junction of two crossed cables and serves to connect them in two alternative ways. In another modification, the switch is situated at a T-joint formed by two cables and serves to connect the leg of the T to either of the two arms. Specification 522,798 is referred to.
Patent GB-196773-A (GB)
Title: Improvements in sliding bolts for doors and the like
IPC: E05C1/06
Filed: 1922-03-15
Abstract: 196,773. Showell & Sons, Ltd., E., and Showell, C. P. March 15, 1922. Sliding bolts.-In a flush-bolt of the type in which the bolt is operated by a rocking-lever mounted thereon, and held in the shot or retracted position by a spring released by the rocking lever, a machined and finished portion 8<a> of the bolt 8 takes the place of the usual separate plate at the back of the recess 9 in the cover plate 6. Upstanding lugs 12 are provided on the bolt for the pivot-pin 13 of the rocking-lever 10. The ends of these lugs form abutments for the acting end of the spring 11 in the extreme positions of the bolt.
Patent GB-1512152-A (GB)
Title: Optical multiple-reflection arrangement
IPC: A01B21/06
Filed: 1976-02-26
Abstract: 1512152 Multiple reflection arrangements ERWIN SICK GmbH OPTIK-ELEKTRONIK 26 Feb 1976 [28 Feb 1975] 07640/76 Heading G2J In an apparatus wherein a beam of light traverses a measuring path, a light source 12 (which may be formed by illuminating a slit) is placed at the focus of a lens 13 so that collimated light falls on a retro reflector 14. In the absence of optical wedge 18 (or wedges 18, 18') the light would be reimaged at the slit. The wedge (or wedges) cause reimaging at 12', and a further retroreflector 16 returns the light to lens 13, the light beam finally passing back through the slit 12 to be reflected to a detector 41 after four passes. Other embodiments having a larger number of passes are described. A particular embodiment is described with reference to Figs. 9-10 (not shown).
Patent GB-400836-A (GB)
Title: Improvements in or relating to fuel nozzles for internal combustion engines
IPC: F02M61/18
Filed: 1933-03-13
Abstract: 400,836. Liquid-fuel injectors. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK, Winterthur, Switzerland. March 13, 1933, No. 7641. Convention date, March 19, 1932. [Class 7 (iii).] Apertures 5 are provided behind the fuel-injection orifices 4 in a nozzle cap 1, through which a tool 6 can be inserted to work on the orifices 4. The orifices 4 and the apertures 5 may have their axes inclined differently with the axis of the injector. The can 1 is screwed on to the end of the injector 3 to prevent leakage of fuel, and is pressed against shoulders 14 on the cylinder head by screws 13. In modified constructions, (1) the cap 1 is a loose fit on the injector 3, and packing between the injector and the cap is compressed by the screws to form a liquid-tight seal ; and (2) the injector is formed without a needle valve.
Patent GB-765436-A (GB)
Title: Improvements in or relating to drives for continous rolling mills
IPC: B21B35/02
Filed: 1955-03-16
Abstract: 765,436. Rolling. MASCHINENFABRIK MEERAKT.-GES, March 16, 1955 [March 16, 1954], No. 7698/55. Class 83 (4). [Also in Group XXIV] An infinitely variable drive for the rolls 7, Fig. 1, in a continuous mill comprises differential gear units 5 for each stand coupled to common drive-shafts 2, 14, one input being a direct drive through a shaft 4 and the other being through an hydraulic pump and motor variable transmission system. The hydraulic pumps 9 of each system are driven through shafts 12 and the pumps are pivoted to regulate the speed by screw-threaded spindles 16 driven from a common shaft 20. Individual adjustment for each stand may be obtained by a motor 23, the shaft 20 being disconnected by clutches 22.
Patent GB-951933-A (GB)
Title: Stabilised mono-ª‡-olefine polymers
Inventor: BURGESS ROBIN HENRY
IPC: C08K5/372
Filed: 1960-03-04
Abstract: The Specification describes a method of stabilization of an olefine polymer using a mixture of a phenolic compound and an organic sulphur compound. The polymer may be a homopolymer of ethylene, propylene, isobutylene, butene-1, 3-methyl-butene-1 or 4-methyl-pentene-1 or an ethylene/propylene copolymer.  The phenolic compound may be a condensation product of a phenol and a saturated aldehyde or ketone, sulphur mono- or di-chloride, a diketone or dialdehyde or an unsaturated aldehyde. The compound has a boiling point of at least 200 degree at a pressure of 1 mm. of mercury and at least two phenolic residues. A large number of suitable materials are specified. The sulphur compound has a molecular weight of at least 250 and has a formula R1SR2 or R1S2R2 where R1 and R2 are monovalent hydrocarbon radicals or are polymeric and contain further -S- or -S2- groups. Any of the hydrogen atoms in the said hydrocarbon radicals may be replaced by sulphydryl, hydroxyl or halogen groups and any of the methylene groups may be replaced by ether groups.  There should be 0.1 to 12 hydroxyl groups provided by the composition to each sulphur atom. Specifications 698,463, 796,285, 823,352, 831,828, 951,931, 951,932 and 951,935, are referred to.
Patent GB-296640-A (GB)
Title: Improvements in full-wave electrolytic rectifiers
IPC: H01G9/00
Filed: 1928-03-13
Abstract: 296,640. White, S. D., and Jones, R. J. March 13, 1928. Electrolytic rectifiers.-A full-wave electrolytic rectifier comprises four cells 1, 2 arranged in a common vessel 3 containing cooling-liquid, the cells being supported in holes in the cover 4 of the vessel by rubber rings 7. Cushioning material may be placed at the bottom of the vessel 3. Specification 296,641 is referred to.