baber/WOPTO huggingface dataset:
Patent GB-548415-A (GB)
Title: Improvements in and relating to lapping machines, more especially for surfaces in high precision instruments
IPC: B24B19/06
Filed: 1940-11-29
Abstract: 548,415. Grinding. SPERRY GYROSCOPE CO., Inc. Nov. 29, 1940, No. 17083. Convention date, Nov. 30, 1939. [Class 60] In a lapping-machine for ball-races and like inner surfaces of parts of high-precision instruments, means is provided for holding the lapping-tool in contact with the work and for permitting disengagement of the lapping- tool by radial movement thereof. The machine shown in Figs. 1 and 3, comprises a set of driven shafts 1 each supporting a ball-race 9 for co-operation with a lapping-tool 21 clamped on a spindle 22 pivotally mounted at 25 on support 26 which is secured by a clamp-screw 28, the lapping-tool being held in engagement by a weight 35 on a bar 36 resting on the spindle 22. The set of spindles 22 can be raised simultaneously by means of a hand-lever 30 provided with a bar 32 for engaging the spindles. The bars 36 are guided by a bar 37 removably mounted in a bracket 38. When it is required to withdraw the lapping-tools, the bar 37 is removed, the hand-lever 30 is rocked to raise the spindles 22 and thereby move the lapping- tools radially, the clamp-screws 28 are slackened, and the lapping-tools can then be withdrawn axially. The lapping-tools consist of a segment made from soft material such as lead and formed with clefts for holding the lapping- compound. Each shaft 1 is provided with a recess 10 in which a ball-race is secured by means of a spring-plate 12 on a screw-cap 11. If the ball-race has a conical exterior, the screw-cap is arranged to clamp the ball-race against the end of the shaft. An ejector 17 is mounted on a rod 16 provided with a knob 20. The shafts are driven, preferably at the same speed, by intermeshing gears 5 driven by a pulley 7. A slight, axial reciprocating movement is imparted to the ball-races by means of levers 45 which are rocked by eccentrics 44 on a shaft 42, and are provided with rollers 48 co-operating with grooved collars 50 splined on the shafts 1. The gears 5 are secured to the collars.
Patent GB-1111067-A (GB)
Title: Tetracycline quaternary ammonium complexes
IPC: C07C211/63
Filed: 1966-04-19
Abstract: Quaternary ammonium salt complexes of tetracycline-type antibiotics are prepared by adding to a tetracycline-containing aqueous medium, at a pH of 6.5 to 10.0, 0.1 to 0.75 moles per mole of antibiotic, of a quaternary ammonium salt having at least one C8 to C18 alkyl group, the temperature of the medium being raised to 40 DEG  to 75 DEG  C. either before or after adding the ammonium salt, and recovering the resulting precipitated complex. The term "tetracycline-type" includes the following tetracyclines:  oxy-, demethylchloro-, chloro-, 7 - chloro - 6 - demethyl -, bromo -, 6-demethyl -, 5a(11a) - dehydro -, 6 - demethyl- 6 - deoxy -, 7 - chloro - 6 - deoxy -, 7 - bromo-6-deoxy, and tetracycline itself.  Ammonium salts include: long chain alkyl substituted imidazolines, mixed alkyl dimethyl (dimethyl benzyl) ammonium chloride, and halides of octadecyltrimethyl-, dodecyltrimethyl-, cetyltriethyl -, cetyl - dimethylbenzyl -, and dodecyl - diethyl benzyl - ammonium. Particularly preferred are the quaternary salts of the "Arguad" (Registered Trade Mark) type.
Patent GB-1260419-A (GB)
Title: Improvements in or relating to page printers
IPC: B41J11/30
Filed: 1969-04-02
Abstract: 1,260,419. Selective printing. SIEMENS A.G. 2 April, 1969 [3 April, 1968], No. 17149/69. Heading B6F. Pin feed tractors 1-4 mounted on blocks 5-8 guided by rods 10 are transversely adjustable by means of cable 12 to which the tractors 3, 4 are fixed, and to which the tractors 1, 2 are releasably attached, so that the tractors are adjustable in unison, and the spacing between pairs of tractors is also adjustable. The tractors 1, 2 carry pulleys 14 connected to hand wheels 15, the pulleys being lockable by clamps 16 to set the spacing between pairs of tractors. When the clamps are released, the tractors 1, 2 may be slid coarsely by hand, fine adjustment being effected by the wheels 15. The tractors may be adjusted in unison by a lockable hand wheel 18 attached to a pulley. The cable 12 may be looped around single adjusting pulleys (Figs. 2, 3, not shown) or threaded through assemblies of pulleys including pulleys 21 having gear teeth meshing with gear teeth on the adjusting pulley such as 14. Two sets of feed tractors may be provided for two paper strips, each set being driven by a respective pair of square section shafts 11 which support but do not drive the other set. The blocks 5-8 may be adjustable in effective width for use with differently spaced rods 10, either by being made in two relatively slidable overlapping parts (Fig. 9, not shown) or by having a slot of variable width to adjust the effective depth of a bearing recess (9, Fig. 10).
Patent GB-668161-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/84
Filed: 1947-06-30
Abstract: 668,161. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1947 [July, 2, 1946], No. 17197/47. Class 39 (i). in a cathode-ray tube, the accelerating electrode 5, Fig. 1, and anode 6 are separated by a gap oblique to the axis so as to provide an electrostatic field with a transverse component, a permanently magnetized ring 7 is arranged around the tube neck to provide a transverse magnetic field, and the arrangement is such that the electric and magnetic deflections are in opposite sense so that the device serves as an ion trap. Preferably a second permanentlymagnetized ring 8 giving a weaker field than the first ring 7 is provided to give any desired final degree of centring of the beam; it may give a deflection in the same sense as or oppositely to that of the first ring 7. The rings 7 and 8 are mounted on a rubber tube 9 and are independently rotatable about the axis to give the desired adjustments. The magnets 7, 8 are split spring rings of copper-nickel-iron alloy and are magnetized to give north and south poles at restricted circumferential regions thereof. To assist in concentrating the field of ring 7 a pair of L-shaped polepieces are provided inside the tube and secured to accelerating electrode 5 by tabs, Fig. 2 (not shown). Thus by [rotating ring 7 the field strength is varied. The cathode 2 is mounted within a cupshaped control electrode 3, and the device has a fluorescent viewing screen. The Specification as open to inspection under Sect. 91 shows further tube details. An indirectly heated cathode 4, Fig. 2 (Cancelled), is supported by insulating disc 7 and is positioned and retained by washers 8, 9, 10 within control electrode 5. The latter is carried by flanged collar 11 attached to leads 3. The gun electrodes 5, 14, 15 are held in spaced relation by lugs 13, 16 sealed to four glass supports 12 and the gun as a whole is positioned in the neck by spring fingers 19 contacting wall coating 20 of " graphite solution." Coating 20 extends almost to the fluorescent screen of the device and has a terminal in the bulbous portion of the tube, Fig. 1 (Cancelled, not shown). An external coating is applied to the bulb and is capacitatively coupled to the internal coating. The fluorescent screen may comprise " medium persistent phosphors." The anode cylinder 15 is closed at one end by disc 17 with a central aperture for the ion-free electron beam. A cap 21<SP>1</SP> with pins 22 is secured to the tube by cement 23. It is suggested that one of the magnet rings may be axially adjustable as well as rotatably adjustable. This subject-matter does not appear in the Specification as accepted.
Patent GB-1474413-A (GB)
Title: Adhesive sacrificial anode for cathodic protection
IPC: C23F13/02
Filed: 1974-04-19
Abstract: 1474413 Adhesive tape L BAGNULO 19 April 1974 [19 April 1973 11 Feb 1974] 17231/ 74 Heading B2E [Also in Division C7] An adhesive tape usable for cathodic protection comprises a tape of Zn, Al, Mg or an alloy based on one or more thereof, the tape being thin and flexible to permit it to conform readily to the shape of a metallic surface to be protected, a layer of electrically conductive adhesive provided on one major face of the tape to permit it to be adhesively secured and electrically connected to said metallic surface, and a protective backing layer of plastics material secured to the other major face of the tape but removable therefrom in its entirety e.g. by peeling. The adhesive may be inherently adhesive, e.g. a conductive vinyl or acrylic adhesive, or one which is rendered adhesive by the effect of heat, light or contact with a liquid such as water where the layer is inherently adhesive, it may be covered with a removable paper or plastics tape, and the body rolled on a spool for storage prior to use.
Patent GB-1186025-A (GB)
Title: Indexing Apparatus
Inventor: HEISS-THUROW EMILIE
IPC: B23Q16/06
Filed: 1967-04-14
Abstract: 1,186,025. Indexing; workholders. E. HEISS-THUROW. 14 April, 1967 [16 April, 1966], No. 17280/67. Heading B3B. In a pneumatically-operated indexing device incorporating pneumatically-operated workpiece clamping means, indexing motion is caused by a piston 9 which travels in an arcuate cylinder chamber, the piston 9 being rigidly connected to an entrainment ring 12 which has a feed pawl 19 adapted to engage feed notches 47 on the underside of an index ring 14. The angle through which the workpiece is to be indexed is set by a selector ring 13 which is released from the entrainment ring by manual operation of a slide member 16, the selector ring then being turned through the desired angle and then reconnected to the entrainment ring. Electro-pneumatic controls, not shown, control the movement of piston 9, catch ring 12 and selector ring 13 through one or a series of to- and-fro movements the amplitude of which is controlled by the presetting of ring 13 and by a stop member engageable with a stop on the ring 13, the index ring 14 being entrained during movements in one direction only, to effect a series of indexing movements. An index pin 18 engages the notches 47 in the index ring 14 to give accurate location of the ring but is depressed out of engagement during indexing movement by a wedge surface on the underside of the entrainment ring 12. The work-clamping means comprises a collet 42 and an annular piston 2 movable axially under pneumatic pressure to cause axial movement of a sleeve 3 and cone member 5, the latter co-operating with the collet to cause gripping of the worl;- piece.
Patent GB-271281-A (GB)
Title: Improvements in and relating to interlocking gear between the clutch and brake engines of winding engines for collieries and the like
IPC: B66D5/26
Filed: 1926-07-12
Abstract: 271,281. Fullerton, Hodgart, & Barclay, Ltd., and McGregor, W. July 12, 1926. Control - transmitting gear for winding and paying-out apparatus.- In winding-engines for collieries, &c. of the kind in which interlocking gear is provided between the brake and clutch engines, the lever 20 of a valve 16 controlling a port leading to the atmosphere from the brake engine cylinder 15 is connected by a link 19 and arm 18 to the shaft 17 of the clutch engine, and the lever 6 of a similar valve on the cylinder of the clutch engine is connected by a link 7 to an arm 5 on a shaft 3 which is provided with roller carrying arms 8, 9 engaging cam plates 13, 14 on links 12 connecting the brake piston rod and weighted brake lever.
Patent GB-1037408-A (GB)
Title: Bread dough additive
IPC: A21D8/04
Filed: 1963-05-02
Abstract: 1,037,408. Bread &c. R. T. VANDERBILT CO. Inc. May 2, 1963 [May 2, 1962; April 19, 1963], No. 17416/63. Heading A2B. Bread and the like bakery products which are softer and have less tendency to stale are made by adding to the dough a lipase preparation active at the dough pH. The lipase preparation may be from rapeseed or from Vernonia anthelmintica (ironweed) seed. An index of the efficacy of the lipase preperation is the degree of increase of extractable fatty acid monoglyceride content of the dough, an increase of at least ¢ oz. per 100 1b. of flour being desirable.
Patent GB-120465-A (GB)
Title: Improvements in Engine Starters.
Inventor: BENDIX VINCENT
IPC: F02N15/04
Filed: 1917-11-26
Abstract: 120,465. Bendix, V. Nov. 26, 1917. Turning-gear.-In an electric starter of.the kind comprising a threaded pinion mounted on a screw shaft driven through a yielding device such as a spring, the screw shaft 13 is driven by a pinion 9 loose on the armature shaft 1 and meshing with a gear 11 mounted on the screw shaft. The pinion 9 is connected by a spring 6 to the armature shaft, and a flange 10 on the pinion bears against the side of the gear 11. The shaft 13 is capable of slight endlong movement in its bearings, so that, if the teeth of the pinion 14 clash with those of the engine member 15, the shaft 13 may yield axially against the tension of the spring 6.
Patent GB-1501158-A (GB)
Title: Production of multilayer structures in semiconductor chip
IPC: G03F9/00
Filed: 1975-04-28
Abstract: 1501158 Aligning photomasks SIEMENS AG 28 April 1975 [13 May 1974] 17504/75 Heading G2X A method of aligning photomasks which a support when making multi-layer structures e.g. a semi-conductor chip, comprises coating a support provided with adjustment marks with a positive photo-laquer, exposing and developing the laquer in the immediate vicinity of the marks only using a first photomask, and aligning adjustment windows in a second photomask with the uncovered marks. After exposure and development of the laquer the support is treated to form a first structured layer and the remaining laquer is removed. A multilayer structure is built up by coating the support with laquer several times and exposing the layers to different second photomasks, however each time, prior to exposure, the adjustment marks are uncovered using the first photomask.
Patent GB-1431375-A (GB)
Title: Catalysts
IPC: B01J23/74
Filed: 1972-04-17
Abstract: 1431375 Gas separation IMPERIAL CHEMICAL INDUSTRIES Ltd 2 April 1973 [17 April 1972] 17579/72 Heading C1A [Also in Division B1] I.C. engine exhaust gases are treated for reduction of nitrogen oxides and/or oxidation of carbon monoxide and hydrocarbons using a catalyst formed by reduction of a precursor composition comprising one or more reducible compounds of Ni and/or Co and/or a platinum group metal, clay and hydraulic cement having a weight ratio of clay to hydraulic cement of between 1 : 4 and 2 : 1 inclusive and being in the form of approximately spherical granules of diameter 1-4 mm. The granules may comprise a uniformly compounded mixture of the components containing up to 35% of the metals, calculated as monoxide, or may comprise the platinum group metal compound supported on the clay-cement mixture or may comprise an interior core of the clay-cement mixture surrounded by a shell of the metal compound-claycement mixture. The exhaust gas is suitably contacted with the catalyst at over 300‹ C., suitably 850‹ C. for steady running, a vol./vol. space velocity of 0À15 to 30 x 10<SP>5</SP> hr.<SP>-1</SP> and, when the object is nitrogen oxide reduction, a reducing power of the exhaust gas, calculated as volume percentages of CO + H 2  - 2O 2  of at least 0À5. suitably up to 8. The catalyst may be used in a two stage process in which a reduction stage is followed by addition of oxygen for oxidation of carbon monoxide and hydrocarbons. The examples describe the use of catalysts containing nickel and copper; palladium; or ruthenium. Specification 1,431,376 is referred to.
Patent GB-804778-A (GB)
Title: Piston packing
Inventor: KRETZER FRED PAUL
IPC: F16J15/32
Filed: 1957-06-04
Abstract: 804,778. Piston packing. NATIONAL SUPPLY CO., and OIL WELL ENGINEERING CO., Ltd. June 4, 1957, No. 17678/57. Class 122 (1). A pump piston comprises a body 11 having a radial flange 14 and is sealed in its cylinder by packing means disposed on each side of the flange and comprising an inner deformable ring 18 and an outer deformable ring 19 both having a free diameter larger than the cylinder bore and having juxtaposed surfaces 18a, 19a from which surfaces 18b, 19b extend radially outward to form a space 20 between the rings of volume at least equal to and preferably slightly larger than the volume of material displaced in the inner ring when the piston is inserted in its cylinder, Fig. 2. An annular disc 17 of impregnated fabric is inserted between the flange and the inner ring 18 and the packing is retained by a backing plate 22 located by a circlip 16. The surfaces 18b, 19b are conical and diverge and the peripheral surfaces of both rings 18 and 19 are flared outwardly to form lips 18c, 19c. The rings 18 and 19 are of natural or synthetic rubber. In a modification, Fig. 6, the conical surfaces 62, 63 are parallel and the radial juxtaposed surfaces 60, 61 are of differing radial extent.
Patent GB-678215-A (GB)
Title: Process and apparatus for decorticating parts of plants
IPC: D01B1/42
Filed: 1949-07-05
Abstract: 678,215. Decorticating fibrous plants. STORK & CO.'S APPARATEN-FABRIEK N.V., GEB. July 5, 1949 [May 25, 1949], No. 17737/49. Class 120(i) In order to obtain most of the pulp removed from fibres in decorticating, in a relatively dry state, the process is carried out in stages in the final one only of which is water used to clean the fibres. The process is carried out in a known type of machine in which the plants are, held by conveyer ropes, transported to a beater where one-half is decorticated and are taken over by a duplicate set of ropes to be presented to a second beater for decortication of the other half. Each beater drum 25 is divided into two stages by a collar 33, the ribs 37 removing most of the pulp as the plants enter the field of scutching, without water, and the ribs 28 of the second stage removing pulp with the aid of water supplied through openings 38 in the saddle 29. A drain channel may be provided in the saddle adjacent the collar 33 to still further prevent water reaching the first stage. More than two stages may be arranged on the drum.
Patent GB-1206898-A (GB)
Title: A vehicle having a sliding door assembly
Inventor: ERB GERHARD
IPC: B61D19/00
Filed: 1969-04-08
Abstract: 1,206,898. Vehicle sliding doors. E. BODE. 8 April, 1969, No. 17758/69. Headings B7B and B7J. A vehicle sliding door assembly comprises a swingable and slidable door 11 which is swung by means of a pivot arm 5 mounted substantially in the centre of one vertical edge of the closed door by a hinge joint 4 on a support 3 on the vehicle wall 1, the pivot arm 5 having at its free end rollers 7, 8, 13 which engage a rail structure 22 to guide and retain the door on the vehicle. The roller 7 which rotates about a horizontal axis engages the underside of a carrier 12, of the structure 22 mounted on the door 11. The rollers 8, 13 are mounted to rotate about vertical axes on an angle bracket 6 on the arm 5 and engage a rib 9 on the structure 22 mounted on the inside 11a of the door 11. To open the door, the pivot arm 5 is rotated about the hinge 4, the door 11 thus moves outwards from the vehicle body 1, and the roller 13 is disengaged from a recess 14 in the door, guided by a curve 15 in the rib 9. The door now slides parallel to the vehicle body 1, a support roller 16 mounted on the door 11 to rotate about a horizontal axis engaging with a guide rail 17 mounted on the vehicle body 1. To prevent lifting of the door, a horizontal stop 21 mounted on the rib 9 engages with a counter member 20 on the rail 17, Figs. 4, 5. The top of the door is guided by a roller (18), Figs. 1, 2 (not shown), engaging an arcuate guide rail (19) on the vehicle body and the bottom of the door has a roller (23) engaging a correspondingly arcuate guide rail on the body.
Patent GB-1217644-A (GB)
Title: Improvements in the manufacture of rivets
Inventor: GARLASCHI EUFEMIA
IPC: B21K1/58
Filed: 1969-04-08
Abstract: 1,217,644. Forging rivets. E. GARLASCHI. 8 April, 1969 [6 April, 1968], No. 17763/69. Heading B3H.  A rivet forging apparatus comprises a fixed die 8 with a pin 6 slidable therein, a first punch 5 to force a length of wire 4 into the die and against the pin to form an axial cavity at one end of the wire and a second punch 14 to head the other end of the wire after it has been moved partially out of the die by the pin. The pin then moves the headed rivet further out of the die so that a forked gripper 9 can grasp the rivet. The length of wire 4 is cut from a continuous wire 3 by a blade 2 which also moves the wire to the die. The pin is initially in its rearmost position when the wire is forced into the die by the punch 5. The punches are mounted on a block 27 connected through linkage 26, 46 to a crank 44. The rotation of the punch-carrying head 42 is achieved through linkage by a cam 29 mounted on the same shaft 30 as a cam 32 which reciprocates the blade 2. The pin 6 and the gripper 9 are moved in sequence by cams 12, 16 mounted on a third shaft 33. The crankshaft 25 and the shafts 30, 33 are drivably connected by gearing 34, 35. The punch 5 is retracted after formation of the cavity and the pin advanced. A block 11 is moved behind the rod 7 of the pin to prevent rearward movement during heading by the punch 14. After retraction of the punch 14 the pin ejects the rivet from the die. The gripper 9 moves in a plane normal to the die cavity to grip the rivet and one end of the rivet is tripped by a block 10 and falls from the gripper into a tray.
Patent GB-1067967-A (GB)
Title: Improvements in or relating to a method of producing cured vanilla beans from green or partially cured vanilla beans
IPC: A23B7/148
Filed: 1965-04-27
Abstract: Vanilla extracts are prepared from cured vanilla beans which have been prepared by subjecting green or partially cured vanilla beans to an atmosphere having a minimum humidity of 70% and to a temperature of 95 to 175 DEG F. till the beans are substantially cured and then drying the beans.  The curing may be effected by p  enclosing the beans in a water vapour impermeable plastic bag or by placing the beans in foraminous trays which are stacked, covered with a plastic sheet and placed in an enclosed space.  The drying may be done at an elevated temperature.  The plastic bag or sheet may be made of polyethylene, polyvinyl chloride or polystyrene.
Patent GB-1495073-A (GB)
Title: Sheet feeding apparatus
IPC: G03G15/00
Filed: 1975-04-29
Abstract: 1495073 Registering sheets XEROX CORP 29 April 1975 [12 Aug 1974] 17770/75 Heading B8R A sheet feed to a copying machine includes a front stop register device which is moved between operative and inoperative positions by passage of a gripper on a gripper chain sheet transport. Sheets separated from site 56 by friction roller 38 are forwarded between stationary guides towards gripper chain 42. Passage of sheet gripper 64 causes cam 70 to permit raising of pivotable stop 80 to register the sheet. Further forward movement of the gripper causes lowering of the stop and reception of the sheet in the gripper (which is opened for the purpose by cam 68).