baber/WOPTO huggingface dataset:
Patent GB-1176760-A (GB)
Title: Digitally Controlled Frequency Synthesizer.
IPC: H03L7/23
Filed: 1968-07-12
Abstract: 1,176,760. Frequency synthesizers. BENDIX CORP. 12 July, 1968 [24 Aug., 1967], No. 33319/68. Heading H3A. A frequency synthesizer comprises: a reference frequency source 10; a number of phase locked loops 13, 30, 45, each including a frequency divider 18, 35, 50; means 11 connecting the source 10 to the input of the first loop 13; means connecting the loops 13, 30, 45 in series, such that the output of a preceding loop is connected to the input of a succeeding loop through a variable divider 23, 40, a mixer 25, 42 and a fixed divider 26, 44; and means 10b, 10c connecting each mixer 25, 42 to the source 10. The first loop 13 comprises a variable frequency oscillator 17, a variable divide by N 1  stage 18 and a phase comparator 14. The output of the reference source 10 is divided by 10 in divider 11 and the resulting signal at f 1 /10 is compared with the frequency from divider 18 to lock oscillator 17 to N 1 f 1 /10. This signal is then fed to variable divide by N 2  stage 23 to produce a signal which is mixed with the reference f 1  in mixer 25. The resulting sum output is then divided by 10 in divider 26 to provide an input signal to the second loop 30, having a frequency Phase comparator 31 then compares this signal with that from a variable divide by N 2  stage 35 to lock oscillator 34 to a frequency A similar sequence is performed by stages 40, 42, 44, 45, the variable division ratio being N 3 , to produce an output frequency at terminal 51.  The oscillators may be controlled by varacter diodes, and the phase comparators may be diode rings.
Patent GB-466716-A (GB)
Title: Improvements in or relating to the control of fuel pumps of internal combustion engines
IPC: F02D1/00
Filed: 1935-12-02
Abstract: 466,716. Fuel injection pumps. NORRIS, H. K. Dec. 2, 1935, No. 33331. [Class 102 (i)] In a multi-cylinder fuel injection pump installation, each pump cylinder 1 is controlled by a rack 2 which is bored at 3, and positioned on a control rod 4. A spring 7 engaging the abutment 6 presses the rack 2 against an adjustable abutment 5. The elements 4 of the control rod are connected together by knuckle joints 8, 9 to allow for errors in alignment of the racks 2. If any pump element seizes, the spring 7 yields and permits the other pumps to be controlled.
Patent GB-950258-A (GB)
Title: Improvements in means for welding workpieces together
IPC: B23K9/028
Filed: 1962-08-31
Abstract: 950,258. Welding by fusion. GES. FUR LINDE'S EISMASCHINEN A.G. Aug. 31, 1962 [Sept. 2, 1961], No. 33466/62. Heading B3R. A welding device for welding the peripheral surface of an aperture in a member, e.g. a plate 11, to the end of a hollow member, e.g. a tube 12, projecting partially into the aperture, comprises a holder 5 mounted for relative rotation with the work about the axis of the aperture and a welding head 6 axially adjustable in the holder 5 to adjust the distance of the electrode end of the head 6 from the axis of the aperture. The holder 5 carries a guide spindle 4 insertable into the tube 12 by a distance determined by a support 13 having a work-engagable ball 14 and adjustable axially and radially relative to the holder 5. The guide spindle 4 has spring- loaded centring projections 2 and is detachable for replacement by a spindle of different diameter. The holder 5 is rotated by a hand wheel 15 or by a power drive. The axes of the holder 5 and the spindle 4 are coplanar. In a modification, the head 6 is mounted to one side of and is adjustable axially and angularly about an axis perpendicular to the spindle 4.
Patent GB-1317164-A (GB)
Title: Rotodynamic fluid pumping apparatus
IPC: F02C7/236
Filed: 1970-07-09
Abstract: 1317164 Centrifugal pumps; turbine engine fuel systems BENDIX CORP 9 July 1970 [10 July 1969] 33485/70 Headings F1C and F1G Pumping apparatus for supplying fuel to turbine engines, comprises a main pump 16, Fig.3, and a starting pump 12 driven by a common shaft. At low speeds the pump 16 develops insufficient pressure to open associated discharge valve 40 so that the outlet 34 receives fuel only from the pump 12. The pump 12 is of the vortex-flow type and has a pressure-actuated by-pass valve 33 which returns excess fuel to the inlet region of pump 12. At a predetermined speed the pressure developed by pump 16 is sufficient to open the valve 40 and to close a valve 44 via a control piston and pilot valve arrangement 46 so that the outlet 34 is supplied only by the pump 16. Closure of the valve 44 not only terminates the supply to the pump 12 but drains the pump 12 through conduit 68, recess 66 and passage 70 and communicates the pump 12 with atmosphere via passages 62, 64.
Patent GB-1460410-A (GB)
Title: Benzoylureidodiphenyl ethers and their use as insecticides
IPC: C07C275/54
Filed: 1975-08-12
Abstract: 1460410 Benzoylureidodiphenyl ethers BAYER AG 12 Aug 1975 [13 Aug 1974 24 Sept 1974] 33535/75 Heading C2C The invention comprises compounds having the general formula wherein R and R<SP>1</SP> are different from one another and are each hydrogen or chlorine, and R<SP>11</SP> is nitro or cyano. They may be prepared by (a) reacting a compound of the formula  with a compound of the formula or (b) reacting a compound of the formula with a compound of the formula The compounds of Formula (I) may be used as insecticides.
Patent GB-339439-A (GB)
Title: Improvements in or relating to direction indicators for vehicles
IPC: B60Q1/34
Filed: 1929-11-04
Abstract: 339,439. Easby, J. D. Nov. 4, 1929. Road-traffic signals on vehicles.-Discs 18, 19 bearing arrows are secured to a spindle 14 rotatable against the action of a spring 17 by a Bowden wire 16 engaging a grooved wheel 15. The Bowden wire 16 is actuated by a handle 49 turning a grooved wheel 36, which is looked in the new position by a spring-pressed ball 43 engaging a pocket 44. The movement of the handle brings one or other of two spring-held pivoted fingers 32, 33 into the path of abutments 30, 31 carried by the steering-wheel so that on the return movement of the steering-wheel an abutment engages the finger and resets the handle 49 and the arrows in the neutral position.
Patent GB-328977-A (GB)
Title: Improvements in or relating to reciprocating or percussive tools
IPC: E21B21/01
Filed: 1929-02-04
Abstract: 328,977. Holman, A. T., and Holman, K. J. Feb. 4, 1929, Divided on 328,685, [Class 12 (ii), Lubricating passages &c.]. Percussive drills. - In rock drills and like percussive tools which are provided with a conduit for conveying compressed air to the inner end of the hollow tool, the air supply thereto is controlled by the main tumbler in a manner whereby the blowing conduit is only open to the supply when the supply of driving fluid to the main cylinder is closed. The blowing conduit 40 is arranged in the bottom of the drill casing and passes by a port 41 to the main valve 24 by which it is controlled. The driving fluid passage 25 enters the valve casing opposite the port 41. The conduit at the front end communicates with an annular chamber 42 between the bush 18 and chuck sleeve 19, and branch pipes 43 lead therefrom to the space behind the anvil block. The oiling conduit 30 and system is identical with that described in Specification 328,685, [Class 12 (ii), Lubricating passages &c.].
Patent GB-733303-A (GB)
Title: Improvements in or relating to workpiece aligning and feeding apparatus
IPC: B21H9/02
Filed: 1953-12-05
Abstract: 733,303. Feeding hooks. SELBACH, O. Dec. 5, 1953, No. 33899/53. Class 78 (1). A workpiece feeding apparatus for workpieces having unlike ends, comprises a reciprocating slide 2, a rail 14 which supplies hooks to said slide, locking and release means 17 for releasing the hooks successively down the rail, an aligning member 7 having a curved face which orients the hooks fed by the slide so that they fall aligned down opening 11. As shown, slide 2 is reciprocated against the action of spring 6, and as the slide moves leftwards it contacts bar 23 to rotate eccentric 17 which displaces pins 18, 19 against springs 22 so as to allow an eyescrew to fall on to the top of said slide 2. At the same time, slide 2 pushes forward the previous eye-screw till the latter engages aligning member 7 and rides up or down on the curved surfaces thereof, slide 2 engaging the aligning member to press the latter back against a spring so as to expose opening 11 down which the eyescrew drops. When the slide returns the first-mentioned eyescrew drops off the top of the slide into a position to be engaged at the next movement forward.
Patent GB-605117-A (GB)
Title: Improvements in or relating to wringing machines and the like
IPC: D06F45/16
Filed: 1945-12-14
Abstract: 605,117. Clamps. FOLLOWS & BATE, Ltd., and McMILLAN, D. Dec. 14, 1945, No. 33916. [Class 61 (ii)] A clamp for securing wringing machines &c. to a support such as a tube of the kind wherein one or both of the jaws is faced with rubber &c., has the fixed jaw B of the clamp A provided with two or more rubber &c. pads D, E to obtain a multi-point contact. These pads are bevelled to fit in dovetail grooves in the jaw, the movable jaw C having a circular pad F.
Patent GB-318798-A (GB)
Title: Improvements relating to runner-fittings for sliding seats for vehicles
IPC: B60N2/07
Filed: 1928-11-20
Abstract: 318,798. Cheston, A. S., and Chinn, W. Nov. 20, 1928. Sliding seats.-Vehicle seats are provided with runner fittings having a spring-influenced roller or rollers &c. adapted to bear against the guide rail upon which the seat is mounted, the roller &c. being automatically rendered inoperative or disengaged from the guide rail by the weight of the occupant when the seat is in use. As shown, the runner fitting comprises an inner part 2 in which is rotatably supported on an axle 7 the main supporting roller 3 and an outer part 5 secured to the seat at 6 and carrying rollers 9 adapted to bear against the flanges 10 of the guide rail 4. The inner part 2 is slidably mounted in outer part 5 by means of slots 8 through which the axle 7 projects and the part 2 is pressed by a spring 11. When the seat is occupied the rollers 9 are disengaged from the rail 4 so that the seat is freely slidable.
Patent GB-1044198-A (GB)
Title: Pneumatic dispatch tube installation
IPC: B65G51/34
Filed: 1964-08-20
Abstract: 1,044,198. Pneumatic despatch apparatus. F. TONNE. Aug. 20, 1964 [Aug. 21, 1963], No. 34145/64. Heading B8A. A pneumatic dispatch tube 1 is branched at each end into a dispatch section 6 and a receiving section 2 for transmission of carriers 11 in either direction. A time delay control system for the reversing blowers 9, 10 is arranged so that the dispatch of a container from one end is delayed until a predetermined time after the blower causing flow for transmission of a container in the opposite direction has been stopped. Contact switches 13 in the despatch section operate the relevant blower in that section through time delay solenoid switches 16, 17, which render the contact switch inoperative at the receiving end until sufficient time has elapsed for despatch. Additional normally closed switches 15 are arranged to be opened by an accumulation of containers in the receiving sections 2. The blowers 9, 10 may be arranged at opposite ends of the conveyer or a single blower may be used in conjunction with valves for reversing the flow.
Patent GB-1298253-A (GB)
Title: Method for the epoxidation of propylene
IPC: C07D301/19
Filed: 1970-07-14
Abstract: 1298253 Propylene oxide ATLANTIC RICHFIELD CO 14 July 1970 [31 Oct 1969] 34212/70 Heading C2C A process for the continuous liquid phase epoxidation of propylene comprises introducing polypropylene, tertiary butyl hydroperoxide, tertiary butyl alcohol and a molybdenum catalyst into a first epoxidation zone, fractionating the effluent from said first epoxidation zone to give an overhead fraction containing unreacted polypropylene, tertiary butyl alcohol and propylene oxide, and a bottoms fraction containing unconverted tertiary butyl hydroperoxide, the remainder of tertiary butyl alcohol and molybdenum catalyst, separating said bottoms fraction into a recycle stream and a purge stream, recycling said recycle stream to said first epoxidation zone, introducing said purge stream into a second epoxidation zone together with propylene and recovering the propylene oxide product from each of said epoxidation zones. The epoxidation zones may be operated at 180-300‹ F., 300-1000 p.s.i.g. and with a concentration of from 20-1000 p.p.m. of molybdenum based on the weight of propylene-free liquid in said epoxidation zone.
Patent GB-778312-A (GB)
Title: Improvements in liquid level indicators
Inventor: GRIMSTON WALTER LEONARD
IPC: G01F23/02
Filed: 1954-11-25
Abstract: 778,312. Gauge glasses. GORDON & CO., Ltd., J., and SPANNER BOILERS, Ltd. Feb. 10, 1956 [Nov. 25, 1954], No. 34248/54. Class 123 (1). In a liquid level indicating device comprising a gauge formed of two glass plates 5, 6 and side plates 3, 4 clamped between slotted front and rear plates 1, 2 and containing an opaque liquid, e.g. mercury, the level of which varies proportionally with variations in the liquid level to be indicated, the gauge being illuminated from the rear by a lamp 8 disposed in a housing 7, an additional slot 9 (Fig. 2) is provided through the glass mounting beside and parallel to the gauge glass slot and of length equal to the full significant length of the gauge. Alternatively, Fig. 3, a strip of translucent plastic 10 is fixed into a slot in the side edge of the housing 7 and bent as shown so that in either case a strip of light of length equal to the full range of the indicator is visible alongside the gauge glass to enable a comparison to be made between the full scale and the obscured length of the glass. The indicator tube may be coloured as shown in Fig. 1, the length of coloration being determined so that the red portion is obscured by the mercury &c., unless a dangerously low level of liquid occurs, the green portion extends over a length corresponding to the normal safe change in level and the yellow runs from a point indicating a dangerously high level upwards.
Patent GB-969320-A (GB)
Title: Improvements in and relating to means for generating involute gears
IPC: B23F5/08
Filed: 1959-10-09
Abstract: 969,320. Gear-grinding. P. H. CLEFF. Sept. 28, 1960 [Oct. 9, 1959], No. 34348/59. Heading B3K. A machine for generating involute gears using a continuously rotating work-table 11 and comprising a rotatable spindle 1 adapted to carry a generating wheel, e.g. a grinding wheel 2 having a flat or cone-shaped operative face of 150 to 179 degrees cone angle, mounted in a spindleholding member 3 and angularly movable therewith about a main pivot P axially normal to and co-planar with the generatrix g of the generating wheel and also parallel to the workpiece axis M, said pivot being journalled in a main slide 4 and slidable therewith in rectilinear guides 5 1 -5 2  so positioned that its rectilinear path coincides with a radial line through the work-piece centre, a retractor mechanism 22 actuating said main slide in such a way that during grinding the main pivot lies at the datum distance " R o +a o  " from the gear axis but is withdrawn for indexing to a distance " R o +a o + Tooth Height " from said axis, and means for correlating the angular movements of the workpiece and spindle-holding member plus the rectilinear retractor movement of the main slide in such timed relation that from the said datum position and during the profile generating period with respect to one tooth flank of the workpiece, an angular movement - aGEN of the work-table is accompanied by an angular movement + #GEN of the spindle holding member such that αGEN=[(1+a 0 /R 0 ) sin #GEN - #GEN], and that from the end of said generating period a further angular movement of the worktable through - aINDEXING is accompanied by a rectilinear movement of the main pivot to a distance " R 0 +a 0 +Tooth Height " from the gear axis, an angular rotation - #GEN of the spindle-holding member and a rectilinear return movement of the main slide, and hence the main pivot, to its datum position " R 0 +a 0 " distant from the gear axis, said datum position now being with respect to another gear tooth flank either several pitches or, preferably, one pitch away from the first flank referred to above. The gear is rotated at a constant velocity while the generation, indexing and feed of a slide 6 take place. The slide 6 is moved on a column 9 by a screw 20 driven from a worm-shaft 14 through change gears 15. The column 9 is adjustable to-and-from the work by a screw 25. The table 11 is rotated by the worm-shaft 14 driven by a motor 16. The slide 6 carries a shaft 18, also driven through the change gears 15, to rotate a cam 19 controlling the angular movement of the pivot P through a lever 24. The slide 6 also carries the hydraulic retractor piston-rod 27. Modifications. The cam 19 may be replaced by an adjustable curve generating mechanism as described in Specification 898,626.
Patent GB-1431935-A (GB)
Title: Chemically resistant material
IPC: C22C14/00
Filed: 1973-07-19
Abstract: 1431935 Ti, Zr or Hf doped boron nitride PHILIPS GLOEILAMPENFABRIEKEN NV 19 July 1973 [22 July 1972] 34385/73 Heading C1A [Also in Division C7] Boron nitride containing 0À5 to 95% of at least one of Ti, Zr or Hf in elemental or nitride form is made by cathode sputtering a target of BN and Ti or Zr or Hf in Ar or N 2  or by a vapour deposition process or by a plasma spray process to form a chemically resistant film preferably 100  to 10 Ám. thick on a substrate.
Patent GB-389582-A (GB)
Title: Improvements relating to spring gaiters for automobiles, or the like
IPC: F16F1/24
Filed: 1931-12-12
Abstract: 389,582. Spring covers. RAMSDEN, H., The Nook, Beech Wood Road, Ovenden, Halifax, Yorkshire. Dec. 12, 1931, No 34451. [Class 108 (iii).] The reinforced meeting edges A, B of a flexible gaiter C enclosing a laminated vehicle spring are secured together by detachable pliable metal strips H having hooked ends K, each strip being passed through opposing slots G, F in the gaiter and between it and the tongue L until the hookec end K engages the slot G, the strip-being then bent over the other slo and held against the gaiter by bending agains the strip H, metal ear on a strip J secured to or integral with the strip H the extremity of th strip H being then ben back over the ears Specification 325,406 [Class 108 (iii), Spring &c.], is referred to.
Patent GB-487235-A (GB)
Title: Improvements in or relating to means for locking nuts
IPC: F16B39/08
Filed: 1936-12-16
Abstract: 487,235. Locking nuts on bolts &c. HUSBAND, W., BOWEN, I., WILLIAMS, D. J., and JENKINS, G. L. Dec. 16, 1936, No. 34495. [Class 89 (i)] A nut e is locked on a bolt or screw b by means of a washer a which is provided integrally with one or more outwardly extending radial wings c which are bent up to engage the side faces of the nut and then bent over the end of the nut to engage flatwise in one or more slots g in the bolt or screw. The wings c may be relatively wide at the portions d which engage the sides of the nut and of reduced width at the ends f, they may be of reduced width throughout, or the ends f may be slightly tapered. If necessary, the portions d may be bent longitudinally to engage the faces of the nut at the corners, and one or both of the ends f may be provided with one or more lateral tongues adapted to be bent over to secure the uppermost end f in position.
Patent GB-382121-A (GB)
Title: Improvements in or relating to pencil holders
IPC: B43K21/06
Filed: 1931-12-12
Abstract: 382,121. Pencil holders. HAACK, F. W., 23, Winterfeldstrasse, Berlin. Dec. 12, 1931, No. 34512. [Class 146 (iii).] In a pencil holder of the type comprising a helical lead carrier i, Fig. 1, attached to a beaded band d extending through a longitudinal slot in the pencil casing b, Fig. 4, for engagement with a sliding sleeve a, the provision for clamping the lead carrier in adjusted position comprises two flaps f extending from the band d around the casing b within an eccentric bore in the sleeve a, and having folded ends with projections g<1>, so that one or other of the flaps will be wedged against the pencil barrel according to the direction of rotation of the sleeve. An adjustable sleeve k engages by a tooth l in the coils of the lead carrier i, and serves to eject the last portion of the lead and as a stop for a new lead.
Patent GB-604498-A (GB)
Title: Improvements in and relating to a method for the production of an oestradiol mixture with a predominating content of ª‡-oestradiol
Filed: 1945-12-20
Abstract: Oestrone glucoside or oestrone acyl glucoside is converted to oestradiol glucoside by reduction, or in the case of the acyl glucoside by reduction and simultaneous removal of the acyl group or groups, by saponification, after which the glucoside is hydrolysed. Alternatively, the oestrone acyl glucoside may first be reduced to oestradiol acyl glucoside, after which the acyl group, or groups and glucoside radical are removed simultaneously by hydrolysis.  A detailed example is given.
Patent GB-502273-A (GB)
Title: Improvements in methods of attaching metallic layers to vitreous or ceramic bodies
IPC: C03C27/04
Filed: 1937-12-15
Abstract: 502,273. Coating with metals. GENERAL ELECTRIC CO., Ltd. (Patent. Treuhand-Ges. f³r Elektrische Gl³hlampen) Dec. 15, 1937, No. 34745. [Class 82 (ii)] A metallic layer is formed on a vitreous or ceramic body by sintering thereon powdered metal, such as tungsten or molybdenum, mixed with 0À 1 to 4 per cent of finely divided or dissolved acidic oxide which is not reduced during sintering. The powdered metal and oxide may be made into a paste and coated on the vitreous or ceramic surface. Suitable oxides are boric oxide, phosphoric oxide, zirconia and silica, boric oxide being preferably used when the body to be coated is of soft glass, and silica when the body is of vitreous quartz. When the body is of ceramic material the oxide should not be one capable of glazing the ceramic surface.
Patent GB-1118403-A (GB)
Title: Improvements in and relating to the treatment of gaseous suspensions of titanium dioxide
IPC: C01B7/03
Filed: 1965-08-13
Abstract: A hot gaseous suspension of TiO2 produced by vapour phase oxidation of TiCl4 is quenched directly with water to form a slurry of TiO2 and to dissolve unreacted TiCl4.  The suspension may be at 300-1000 DEG C. and may contain 0.5-5% TiCl4 by weight of TiO2.  The water may be at 20-75 DEG  C. and may comprise recycled TiO2 slurry.  The process may be operated continuously, semi-continuously, or batch-wise, under atmospheric or super- or sub-atmospheric pressure.  The resultant gas stream containing Cl2, O2 and H2O vapour may be passed through a condenser, where water is recovered and recycled, and then passed to chlorinating apparatus.  The product slurry may have, or be adjusted to have, a pH of less than 4.  It contains Ti hydroxide and hydroxy chlorides resulting from hydrolysis of the dissolved TiCl4, which are said to enhance the pigmentary properties.  If scouring agents, e.g. sand or alumina or TiO2 aggregates, were present on the suspension, they settle on the slurry and can be removed.