baber/WOPTO huggingface dataset:
Patent GB-642050-A (GB)
Title: Improvements in or relating to isobutylene copolymers
IPC: C08F210/12
Filed: 1948-03-25
Abstract: Copolymers are made by copolymerizing a mixture of a major proportion of isobutylene, a minor proportion of a multi-olefin having from 4 to 14 carbon atoms per molecule and from 0.1 to 5 per cent by weight of the total mixture, of a divinyl aromatic compound at a temperature between - 40 DEG  and - 160 DEG  C. in the presence of a Friedel-Craft catalyst.  Specified multi-olefins are butadiene, piperylene, dimethyl butadiene, myrcene, allo-ocymene, 2-methyl-3-butyl butadiene-1,3 and 2-methyl-4-nonyl butadiene-1,3. Specified divinyl aromatic compounds are ortho-, para- and metadivinyl benzene, divinyl-naphthyl compounds, divinyl-toluenes, divinyl-xylenes, and di-isopropenyl benzene. The Friedel-Crafts catalyst is employed as a solution in a low-freezing non-complex-forming solvent.  The reduced temperature may be obtained by adding to the polymerization mixture liquid propane, ethane, ethylene, fluorochlor organic compounds or solid carbon dioxide.  The polymerization may be effected in bulk or in the presence of a diluent, e.g. methyl or ethyl chloride, methylene or ethylene dichloride, chloroform, ethyl trichloride or carbon bisulphide.  The diluents may be solvents for the catalyst; other specified solvents are sulphuryl chloride, heptane and hexanes.  Specified catalysts are aluminium chloride or bromide, titanium tetrachloride and boron trifluoride. The copolymers may be compounded with plasticizers, e.g. hydrocarbons, dioctylphthalate; curing agents, e.g. sulphur, paraquinone dioxime, or dinitroso benzene; zinc oxide or stearic acid, carbon black, tetramethyl thiuram disulphide, 2-mercapto-benzothiazole, and copolymers of isobutylene and a multi-olefin.  The copolymers may be extruded and made into inner tubes.
Patent GB-222773-A (GB)
Title: Improvements in connection with timepieces used on autocars and other vehicles
IPC: G04B5/20
Filed: 1923-07-09
Abstract: 222,773. Bath, C. M. H. July 9, 1923. Winding-mechanism; stop mechanism.-In a motor clock in which the spring C<4> is wound from the road wheel by the driven spindle A, worm and wheel B, C, gearing C<2>, C<3>, and a friction clutch C<1>, as described in Specification 222,589, [Class 106 (i), Calculating &c.], overwinding is prevented by a star wheel F<1> on the spring-case and a spur F on the spring- spindle. When the spring is wound the spur F is stopped by a solid tooth on the star-wheel. A spring F<2> controls the rotation of the starwheel.
Patent GB-647287-A (GB)
Title: Machine for stripping hops from vines
IPC: A01D46/02
Filed: 1948-03-30
Abstract: 647,287. Plucking hops. THYS, E. March 30, 1948, No. 8991. [Class 58] The fingers of a hop-plucking machine comprise interengaging wire loops 11 terminating in coils 7 which are received in slots in a cylindrical member 2 attached to a finger bar 1 and maintained there by a pivot pin 4 passed through all the slots, the fingers being prevented from rotation on the pin 4 by the free ends of the wires being located in holes 5 in the finger bar. The wires are crimped, as at 9, so that the fingers interlock. To replace a broken finger or dismantle the assembly, the pin 4 is simply withdrawn. The finger bars may be attached to drums or to endless chains.
Patent GB-550695-A (GB)
Title: Improvements in or relating to haymaking or like machines
IPC: A01D78/02
Filed: 1941-07-16
Abstract: 550,695. Haymaking &c. machines. NEIDHART, M, July 16, 1941, No. 9005. Convention date, Aug. 17, 1940. [Classes 6 (i) and 6 (iii)] A haymaking machine comprises rotatable tine fork carriers 3, 4 mounted on a common axis and angularly adjustable into three positions, in two of which the planes of rotation of the carriers are oppositely inclined relatively to the axis for spreading cut grass &c., Fig. 1, and gathering the dried grass to form swaths respectively, and in the third position, extend at right angles to the axis for turning the spread grass. The machine can also be used for spreading, or reducing spread, manure. As shown, the carriers 3, 4 are mounted on sleeves 8 on spherical bearing members 7 on a non-rotatable tube 6 on the wheel axle 2 and secured in adjusted positions by set screws 11 passing through arcuate slots 10 in extensions 9 of the sleeves. Angle irons 17 between the spokes 13 are secured at one end to a sleeve 18 on the tube 6 and at the other end to a gear casing 20 loosely mounted on the tube 6 and constituting a non-adjustable rotatable tine fork carrier 5. The axle 2 is driven through one-way clutches by the road wheels 1 and the motion is transmitted to the carrier 5 by a gear 23, keyed on the axle 2, and a satellite wheel 22 when a gear 24 is locked by the engagement of bolts 27 on a slidable disc 28 actuated through linkage 29, 31, 32, 33 from a handlever 34, the carriers 3, 4 being rotated simultaneously by the angle irons 17.
Patent GB-162507-A (GB)
Title: Improvements connected with coin freed apparatus for gas meters
IPC: G07F15/02
Filed: 1920-03-27
Abstract: 162,507. Glover, W. R., and Whimster, J. I. March 27, 1920. Gas, supplying by meter; coin action, mechanical-connection.-In a coin-freed gas-meter as described in Specification 25272/94, back movement of the crown-wheel A, Fig. 1, is prevented by a ball B jambing between an angled track C and the periphery of the wheel, which may be smooth, rough, milled, or serrated. Any forward movement of the wheel A due to momentum when the coin is released is prevented by an angled end K, Fig. 4, on the coin-carrier arm D acting, at the end of its travel, on a rocking lever E to cause one end J, Fig. 5, of this lever to engage between the teeth F of the crown-wheel. The other end I of the lever E is weighted to keep the end J normally out of contact with the teeth F. The track C and lever E are carried by a bracket G which is fixed to the casing H and which forms a stop for the coin-carrier arm D.
Patent GB-837025-A (GB)
Title: Audible alarm device
Inventor: ALLEN GEORGE
IPC: G10K1/068
Filed: 1957-03-19
Abstract: 837,025. Bells and gongs. HALL & CO. Ltd., M. June 18, 1958 [March 19, 1957], No. 9034/57. Class 13. A striker 4 sliding longitudinally in a bearing- block 17 is thrown against a bell or gong 1 by a cam 14 on the axle 11 of a water-wheel 3. The striker is returned by gravity, as shown, or by a spring. The water feed to the wheel may be controlled by a heat-responsive element in a sprinkler system.
Patent GB-1461938-A (GB)
Title: Electrodeless discharge lamp and  power coupler therer for
IPC: H01J65/04
Filed: 1974-02-28
Abstract: 1461938 R.F. couplings PERKIN-ELMER CORP 28 Feb 1974 [1 March 1973] 9114/74 Heading H4A [Alsoin Division F4] A resonator coupler 11 for coupling an R.F. source 12 to an electrodeless discharge lamp 10 comprises a coiled wire conductor 15 one end of which (at the left) is grounded and the other end of which is open-circuited, means for mounting the lamp within the coil, a generally tubular grounded shield 14 of conductive material which surrounds the coil, and a tap 26 at an intermediate point on the coil, from which connection is made to the R.F. source 12. The length of the coiled conductor 15 is substantially #/4, where # = the free space wavelength at the frequency of the R.F. source 12, and before a discharge is ignited in the lamp a very high voltage is developed across said lamp. When ignition occurs the lamp imposes a resistive load, which will be matched to the source impedance if the position of the tap 26 has been appropriately predetermined. The lamp 10 has a small quartz bulb 10a containing an ionizing gas, such as argon, at low pressure, and a minute quantity of an element (or of a compound thereof) which is to be spectroscopically examined. The lamp also comprises a stem 10b, by means of which it is mounted on a base member 17, of electrically conductive material, at one end of the cylinder 14. The coiled conductor 15 is mounted on a ceramic former 16, and the connection from the tap 26 to the R.F. source 12 is taken through an insulating bushing 25 in the base member 17. The coiled conductor 15, and the inner surfaces of the cylinder 14 and of the base member 17 may be silver plated. A trimming capacitor 32 may be provided between the cylinder 14 and the coil 15, and the other end of said cylinder may be closed by a window 34 and bezel 35.
Patent GB-299673-A (GB)
Title: Improvements in and relating to spraying apparatus and blow lamps
IPC: B05B11/06
Filed: 1928-03-26
Abstract: 299,673. Buchanan, I. W. P. March 26, 1928. Blow-lamps.-A blow-lamp comprises a rigid vessel 1, Fig. 2, serving as a compression chamber and having an opening 11 in its bottom communicating with a container 21 screwed to the chamber 1, a neck 2 on the vessel 1 carrying an air pump 7 and a tube 9 through which passes an eduction tube 10 leading to a nozzle 15. The tube 10 is centred in the tube 9 by depressions 13, Fig. 4, and has a flaring mouth 19. A tip15 is screwed on the tube 9 to regulate the spray or when screwed in contact with the tube 10 to cut off the air supply, and may be locked in any position by a nut 16 and washer. The outlet may be closed when desired by a pad 26 carried by a lever 24, Fig. 2, pivoted in the forked end of an upright 25 and normally held away by a spring 27. A gauze screen 12 in the neck of the chamber 1 prevents back flash. A clip 29 is adapted to hold a match to ignite the spray. A bent wire 23 embraces the neck of the container and is bent downwards to form legs 22 on which the apparatus may stand when not in use.
Patent GB-720871-A (GB)
Title: Driving device for belt drives
IPC: F16H7/16
Filed: 1953-04-02
Abstract: 720,871. Belt gearing. LEDER & CO. AKT.- GES. April 2, 1953 [April 3, 1952]. No. 9164/53. Class 80 (1). A driving shaft 19 is coupled to a belt pulley 1 by means of a pinion 11 on shaft 1 engaging a gear ring 8 secured inside the pulley. The pulley is rotatably supported on a hub 3 secured to a plate 2 which is adapted to swing about a bearing 5 to tension automatically the belt in accordance with the load. In order to dampen the swinging movement of plate 2 under fluctuating load conditions a spring-pressed brake shoe 16 carried by the plate 2 engages a groove 15 in a ring 12 which has a cylindrical frictional surface 14 engaging through a viscous oil film a co-operating frictional surface 13 of a fixed ring 6. The gear ring 8 may be internally toothed and the pulley 1 may be an adjustable Vee-groove pulley or it may be stepped to provide for a variable-speed drive. In a modified arrangement of damping device acting in one direction of movement of the plate 2 only a ring member is prevented from rotation in one direction relative to a fixed part by a one-way clutch device and this ring is engaged on its side faces by corresponding friction faces on the plate 2.
Patent GB-288274-A (GB)
Title: Improvements in or relating to gasifiers provided with incandescent mantle and inverted burner
IPC: F23D99/00
Filed: 1928-03-26
Abstract: 288,274. Aktiebolaget B. A. Hjorth &. Co. April 9, 1927, [Convention date]. Incandescent-vapour burners; mantle supports; vaporizing-apparatus.- The nipple 2 and air-inlet tubes 3 are arranged under the mantle 6, which surounds the mixing-tube 8. The mantle is secured to the mixing-tube and to the lower end of a mixing-chamber 4 into which the mixing-tube projects.
Patent GB-198848-A (GB)
Title: Improvements in and relating to tone arms for sound reproducing machines
IPC: G11B3/00
Filed: 1922-03-30
Abstract: 198,848. Sharman, F. March 30, 1922. Tone-arm joints; tone-arms. - The joint between the tone-arm and amplifier is constituted by a central stem fixed to the tone-arm and supported by a ball bearing or bearings in a socket concentrically arranged in the inlet to the amplifier. Fig. 1 shows a stem 13 fixed to the tone-arm 10 and supported in a socket 8 carried from a sleeve 6 connecting to the amplifier, the stem resting on a pivot 22 and bearing on balls 18, 19 spaced apart by a tube 20 and enclosed by a sleeve 16 fitting the socket. In a modification, the socket is extended into the tone-arm and is recessed at each end to receive balls against which fixed collars on the stem bear. In Fig. 4 the balls are arranged between outer and inner race rings fitting respectively in the socket 8 and on a sleeve 28 with which the stem 27 makes a push fit. A screwed cap 25 covers the bearing. The balls may, in a further modification, be arranged between an annular groovein the stem and the socket, the stem resting on a ball at the bottom of the socket. According to a Provisional Specification, rollers may replace the balls, and the tone-arm may be extensible by a telescopic part with slot and screw clamp.
Patent GB-657960-A (GB)
Title: Improvements in or relating to a well drilling apparatus
IPC: E21B15/00
Filed: 1949-04-05
Abstract: 657,960. Cranes. MOORE CORPORATION, L. C. April 5, 1949, No. 9237. Convention date, April 20, 1948. [Class 78 (iv)] ' In a well-drilling apparatus including a substructure, a mast mounted thereon and having an open side and a closed side, the lower end of one of the sides being hinged to the substructure to permit the mast to be swung down to a position along the ground, the apparatus comprises a track inside the mast adjacent the closed side and extending from the top of the mast to a point near the bottom, a crown block detachably mounted in the top of the mast being slidably supported by the track when the mast is in its lowered position with the crown block disconnected from the top of the mast, whereby the crown block can be moved along the track toward the opposite end of the mast. The substructure 1 has ramps 2 up which the track trailer is backed and levelled by jacks 4. The lower beams 8 of the trailer are supported on a cross beam 9. A gin pole 11 straddles the draw-works and a mast 12 is mounted in front. The legs 13 and gin pole are supported on shoes. The lower part 16 of the front legs 17 are hinged to the upper part 17 and are detachably connected to shoes 18. A line 22 extends from a drum 6 and extends to a crown block 23 and travelling block 24. The crown block comprises sheaves mounted on a shaft, between parallel side plates connected by a cross-plate forming flanges 30 which contact rails 43, during translation. A suspension head secures the block to the support. To lower the mast the travelling block is connected to a loop of a sling which extends down the mast under sheaves 42 from the top of the gin pole, the parts 16 of the front legs are disconnected from the shoes 18 and swing back, the drum slowly lets out the line 22 to lower the mast to ground level, the mast being supported by the sling. The line continues to be paid out to pull the travelling block towards the substructure. The crown block is then disconnected from the mast or is pulled along the track 43 to a ramp 44 to guide it to a platform 45 laid on the trailer beams. The mast can then be separated for transport.
Patent GB-1496986-A (GB)
Title: Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod
IPC: F16J15/40
Filed: 1976-03-09
Abstract: 1496986 Sealing UNITED STIRLING (SWEDEN) AB & CO 9 March 1976 09277/76 Heading F2B A reciprocating piston-rod 4 which extends from a chamber 2 containing gas at high pressure, through a wall 1 to a low pressure chamber 3, is sealed to prevent gas leakage, the seal comprising a scraper 16 to prevent lubricating oil from moving along the rod 4 to the chamber 2 and an oil collecting space 18 which is provided adjacent the scraper, the outlet from this space 18 being through a valve 21, 22 which allows the oil to pass through it only when the oil pressure in space 18 exceeds that of high pressure chamber 2. The seal also comprises a resilient sealing gland 11, of fibreglass-reinforced ptfe, pressed against the rod 4 by the wedging action of metal rings 12 and 13 under the influence of a spring 15, the spring _15 also pressing the scraper ring 16 against the rod by wedging between a spring support 17 and the ring 13. The chamber 7 containing the seal is at the pressure of chamber 2, fluctuations being damped by an 0-ring 6. Oil is supplied to rod 4 through a passage 10 to an annular groove 9. The valve comprises a membrane 21, pressure in chamber 7 acting on it, through a passage 25, to close oil outlet passage 23 against the pressure of oil acting on a smaller area on the other side of the membrane. The metal ring 13 has a pressure equalizing passage 27 through it, 0-rings 26 preventing oil leakage from passage 19.
Patent GB-667523-A (GB)
Title: Improvements relating to water closets
Inventor: PIMBLE ARTHUR VICTOR
IPC: E03D1/26
Filed: 1950-04-15
Abstract: 667,523. Sanitary closets. TWYFORDS, Ltd. April 15, 1950, No. 9306/50. Class 26 In a water closet of the type described in Specification 511,273, the air extraction pipe passes through an aperture in the floor of the flushing chamber and the gap is sealed by a rubber or other resilient part without said pipe being fixed to said floor. In the form shown, a dome-shaped rubber seal 28 is screwed on to the pipe 20 up to a shoulder 29 and the seal, which has a chamfered lower edge, is compressed when the cistern, together with the pipe 20, is lowered on to the basin. In another form. the seal is a rubber bush carried by the basin which co-acts with a wide shoulder on the air extraction pipe.
Patent GB-1218181-A (GB)
Title: Improved apparatus for use in knitting machines
Inventor: PEAT DEREK
IPC: G01B7/04
Filed: 1967-02-28
Abstract: 1,218,181. Knitting. NATIONAL RESEARCH DEVELOPMENT CORP. 22 Feb., 1968 [28 Feb., 1967], No. 9323/67. Heading D1C. [Also in Divisions G3 and G4] In a system for automatically controlling the stitch length of a fully fashioned straight bar knitting machine the extent of the deviation of the average stitch length from the nominal stitch length is determined from measurements made over eight successive courses and the result is both displayed on a meter and used in a retroactive control loop to reduce the error. The principle used to determine the required deviation is that when a photoelectrically sensed 11, 12, Fig. 7, 1,000 lines/inch grating 9 attached to the slur bar 10a is first detected an electrostatic charge is deposited 3 on the yarn Y, when this charge is detected 6 at a point a known distance ahead of the point 3 at which it was deposited, counting of the remaining pulses from the grating commences, 16 and the arrangement is such that if the stitch length is correct a known count will be attained, whereas if the stitch length is above or below the nominal length, a higher or lower count will result. In the actual control circuit the first pulse from grating 9 is amplified and used to control the deposit 3, 4 of an electrostatic charge on the yarn. When the charge is detected 6 a known distance past its point of deposit, a bistable is changed over to open a gate so that subsequent pulses from the grating pass to a binary counter EC. Change over of the bistable also adds unit to a course counter CC. This process is repeated for each course until eight have been counted. The number in the counter EC is then converted to an analogue voltage, displayed on a meter M, and can be amplified and passed to a motor connected to an adjusting screw of the quality control mechanism (fig. 10 not shown).
Patent GB-1193201-A (GB)
Title: Copper-Base Alloys
Inventor: JACKSON RUSSELL JOHN
IPC: C22C9/04
Filed: 1967-02-28
Abstract: 1,193,201. Copper alloys. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. March 13, 1968 [Feb. 28, 1967], No. 9501/67. Heading C7A. Alpha copper base alloys consist, by weight, of Cu #63% Pb 1-3% # Zr 0À5 -1À6% one or both # mischmetal 0À25-0À8% Zn (#0À5%) - balance apart from impurities. The following ratios should obtain:- #0À5 Zr to 1 Pb; and/or #0À25 mischmetal to 1 Pb. The alloys may be hot-worked without cracking Uses. Keys and printers' matrices.
Patent GB-883705-A (GB)
Title: Improvements in or relating to supports for hurdles and the like
Inventor: EATON GEORGE EDWARD
IPC: E04H17/18
Filed: 1960-03-17
Abstract: 883,705. Hurdle supports. EATON BERRY Ltd. March 17, 1960, No. 9518/60. Class 45. A support for a multi-barred gate or hurdle comprises a base member 1, Fig. 1, arranged to extend below and substantially normal to the plane of the hurdle or gate an upright member 3 secured to it, a brace member 5, and a clamp plate 9 arranged to pivot on the pin 7. In positioning the support, the clamp plate is pivoted until it is transverse to the upright member ; two bars 12 of the gate are then inserted and the plate is then pivoted to be parallel to the upright member and the wing nut 11 tightened. A more permanent attachment is provided with a nut and bolt (not shown) through holes 13. Wheels 17 may be attached to the base member by mounting them on stub shafts 19 provided with plates 20 adapted to be secured to support plates 15 on the base member.
Patent GB-566335-A (GB)
Title: Improvements in or relating to machines for cutting materials into strips
IPC: C14B5/04
Filed: 1943-06-15
Abstract: 566,335. Cutting-machines for leather, fabrics &c. STIRLING TEXTILE INDUSTRIES, Ltd., and FRANKLIN, W. T. June 15, 1943, No. 9541. [Class 31 (i)] A machine for cutting broad material, such as felt or leather, into strips is constructed of a number of disc-shaped knives 1 mounted in adjustably spaced relation on a shaft 2 and coacting with a roller 3 formed of a fibrous material such as that known under the Registered Trade Mark " Xylonite," the roller 1 being mounted in bearings 12 which are adjusted by screw mechanism to cause the knives to cut through the material 4 and into the periphery of the roller 3 to form shallow grooves 5. The material is fed from a roll 9 by means of friction rollers 8, which are adjustably spring-mounted, and guide rolls 11 and a winding spindle 10 are provided. The feed of the material is assisted by driving the rollers 1, 3 in opposite directions by a crossed belt 28 passing over a tensioning pulley 31. The roller 1 is geared by a belt 34 to the upper roller 8 and the roller 3 by a belt 37 to the lower roller 8. A main driving motor drives the shaft of either of the rollers 1, 3 or 8. The knives 1 are secured at adjustable distances apart by means of screws 7, and the cutters 1 are secured between clamps in such manner that only relatively narrow portions thereof are unsupported.