baber/WOPTO huggingface dataset:
Patent GB-1355615-A (GB)
Title: Negative feedback clamping circuit for a television signal
IPC: H04N5/18
Filed: 1972-04-11
Abstract: 1355615 Television THOMSON-CSF 11  April 1972 [13 April 1971] 16712/72 Heading H4F In a television clamping circuit in which the video signal (a), Fig. 2, at the output of detector 3 is sampled during the horizontal blanking periods and the resulting samples (b), after inversion (e), used in a clamping switch 7 and capacitor C 2 , the need for a large negative feedback amplificator factor, with the resulting in-  stability, is overcome by extending in means 5 each sample level from when the original sample ceased till the commencement of the original next sample (c). This signal, after integration at 6 provides the clamping reference signal (d).
Patent GB-1029825-A (GB)
Title: Improvements in disc brakes
Inventor: LAWRIE WILLIAM DAVID
IPC: F16D65/092
Filed: 1962-06-02
Abstract: 1,029,825. Disc brakes. GIRLING Ltd. May 6, 1963 [June 2, 1962], No. 16794/62. Heading F2E. A disc brake has the torque reaction on a friction pad or caliper taken by two abutment surfaces spaced radially on one side only, and at least one of which is inclined to, the drag line so that the reactions from the abutment surfaces intersect each other on the drag line. In one embodiment, Fig. 2, an axially movable caliper 2, 3 is guided on a torque-taking member 7, the abutment surfaces 16, 17 of which are equally inclined to the drag line F so that the equal reaction forces P<SP>1</SP>, Q<SP>1</SP> intersect on the drag line and subtend equal angles to the abutments to provide minimum values for the reaction forces. In a modification one abutment surface may be curved. In another embodiment, Fig. 4 (not shown), an axially slidable pad 22 bonded to a backing plate 21 is formed with recesses which receive complementary shaped ears 23, 24 of a fixed caliper 20 that has inclined abutments 25, 26. In a modification the pad backing plate may be provided with ears which are received in complementary recesses in the caliper. In a further embodiment, Fig. 6 (not shown), the backing plate 21 is provided with a hole in which is received a guide pin 31 and an inclined recess in which a second guide pin 32 is received, abutments 33, 34 being provided.
Patent GB-933247-A (GB)
Title: Shaded pole motor
IPC: H02K17/10
Filed: 1961-05-09
Abstract: 933,247. Shaded pole induction motors. EMERSON ELECTRIC MANUFACTURING CO. May 9, 1961, No. 16796/61. Class 35. In a shaded pole induction motor a supplemental winding is provided for additively supplementing the flux density at the central area of each of the poles, the supplemental winding being encompassed by the main running winding embracing the pole but being physically separated from it by a part of said pole. The arrangement is such that the supplemental winding increases the flux density at the centre of the pole face so as to reduce the distortion of the flux pattern and reduce also the effect of the third harmonic and the negative torque caused by this third harmonic. As shown in Fig. 1, a stator is made up of a number of laminations 1 riveted together at 2. The stator 1 has four poles 3 each comprising a centre pole section 4, a shaded pole section 5 having a shading winding 15 in slots 9, and a tip section 6. Each of the poles 3 is separated from its immediately adjacent poles by a gap 10 at the face of the pole leading into a fan-shaped open area 11 which accommodates a main running winding 13. The slot 7 between the pole section 4 and the shaded pole section 5, and the slot 8, between the centre pole section 4 and the tip section 6 are large and accommodate the supplemental winding 14 wound around the centre pole section 4. Further shading windings may be provided on the other sides of each of the central pole sections so making the motor reversible, Fig. 2 (not shown). The supplemetal winding may be connected in series or in parallel with the main running winding and, if desired, the faces of the pole tips may be chamfered or otherwise cut away to provide a non-uniform air gap.
Patent GB-939575-A (GB)
Title: Improvements in or relating to the preparation of chloromethyl ethers and to the preparation of water-proofing agents therefrom
Inventor: MOEBIUS GERHARD
IPC: C07C43/12
Filed: 1962-05-02
Abstract: Chloromethyl ethers of monovalent saturated aliphatic alcohols containing at least 12 carbon atoms are prepared by reacting said alcohol with anhydrous polymerised formaldehyde and thionyl chloride at a temperature above the melting point of the alcohol and below the boiling point of thionyl chloride at normal atmospheric pressure and removing the gaseous reaction products formed.  Specified alcohols are hexadecyl, octadecyl and eicosyl alcohols and mixtures thereof. The anhydrous polymerised formaldehyde may be paraformaldehyde or trioxymethylene.  The chloromethyl ethers may be reacted with tertiary nitrogen bases such as pyridine and triethanolamine to give quaternary compounds which may be used as water proofing agents (see Group IV(c)).  In examples:-(1) a fatty alcohol mixture predominantly consisting of octadecyl alcohol, paraformaldehyde and thionyl chloride give the chloromethyl ether of octadecyl alcohol which is then reacted with pyridine to give octadecyloxymethylpyridinium chloride; (2) hexadecyl alcohol, trioxymethylene and thionyl chloride give hexadecyl chloromethyl ether which is reacted with pyridine giving hexadecyloxymethylpyridinium chloride; (3) octadecyl chloromethyl ether is reacted with triethanolamine to give the corresponding quaternary ammonium chloride.ALSO:Textiles, paper and wood are water-proofed by treatment with an aqueous solution of the quaternary nitrogen compounds obtained by reaction between a tertiary nitrogen base and the chloromethyl ether of a saturated aliphatic alcohol containing at least 12 carbon atoms (see Group IV(b)).
Patent GB-1032808-A (GB)
Title: Hauling apparatus for bush clearing
IPC: A01G23/06
Filed: 1963-04-29
Abstract: 1,032,808. Pulley tackle. J. L. BOTHA, and W. J. J. CRONJE. April 29, 1963 [March 15, 1963], No. 16812/63. Heading B8B. Pulley tackle apparatus for hauling bushes 21, Fig. 3, out of the ground comprises multiple pulley blocks A, B, one of which carries an anchor such as a spiked chain 17 for attachment to a fixed point such as the base of a tree 15 and the other of which carries a chain 20 to which a plurality of cables 22 are attached for hauling the bushes 21. The pulley blocks comprise multiple pulleys 5, 6, 7, Fig. 2 (not shown), on shafts 8 between parallel side plates 1, 2. Skids 13 are attached by members 14 to the side plates 1, 2 to protect the blocks when sliding along the ground. Guide pulleys 10, 11 are provided for the outgoing rope 19 which is hauled manually or attached to a tractor.
Patent GB-699285-A (GB)
Title: Electric high-frequency generator
IPC: H02K19/24
Filed: 1952-07-04
Abstract: 699,285. Inductor alternators. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 4, 1952 [July 14, 1951], No. 16831/52. Class 35. In high-frequency inductor alternators having only one stator winding slot 2 per high-frequency pole, these slots being consequently large and difficult to cool, a projecting portion 4 of the core extends into the slot to carry away the heat in the winding. The projecting portions normally have no magnetic effect, but if desired similar projections 6 may be used to shroud the D.C. exciting windings in slots 5 against high-frequency induction.
Patent GB-1109170-A (GB)
Title: Laminates
Inventor: FUERST PETER E
IPC: D21H17/68
Filed: 1965-04-21
Abstract: A method for making an overlay paper comprises thoroughly mixing together finely divided silica and paper-making fibrous material and laying said mixture down in paper-making fashion.
Patent GB-182457-A (GB)
Title: Improved apparatus for producing local anaesthesia
IPC: A61M19/00
Filed: 1922-06-19
Abstract: 182,457. Fabret, F. J. June 28, 1921, [Convention date]. Addition to 154,619. Air, gas, and vapour injectors and douches. -The invention described in the parent Specification is modified by restriction of the gases employed for producing the anesthesia to oxygen, and by a special nozzle for heating or cooling this gas. The oxygen passes from a storage cylinder through a reducing- valve to the pipe which can be heated when desired by an electric heater R. The pipe O passes from a pipe C which conveys gas from a carboy of liquefied CO2, and it terminates at the nozzle F. The pipe C for the portion within the applicator tube P is in the form of a coil S, and the cold gas finally expands into the interior of the tube P and escapes by a flexible pipe K, which opens to the atmosphere at the point S<1>. This pipe is surrounded by a metallic flexible sheath G.
Patent GB-456075-A (GB)
Title: Improvements in and relating to the preservation of fermentable liquids
IPC: C12H1/10
Filed: 1935-06-12
Abstract: The micro-organism nutrients, phosphorus and nitrogen, are removed from moderately acid fermentable liquids such as fruit juices, grape musts, wines, ciders, thus sterilizing them, by adding thereto mixed or double salts of iron, with aluminium, titanium or zirconium which may be zeolites.  In examples: (1) a grape must is treated with aluminium tartrate and ferric phosphate and an excipient; (2) a must charged with sulphur dioxide or formic acid has the antiseptic removed and is sterilized by passing the must into an affusion apparatus with air and adding phosphoric acid.  The excess phosphoric ion is removed by basic phosphate or tartrate of iron and aluminium; (3) a wine or cider has its fermentation arrested by treating with phosphate of iron and aluminium.
Patent GB-1566855-A (GB)
Title: Drill chuck
IPC: B23B31/12
Filed: 1978-04-28
Abstract: The drill chuck consists of a chuck body (1), a gripping sleeve (2) rotatable thereon and gripping jaws (7) adjustable by the gripping sleeve. In order to rule out the possibility of unintentional loosening of the chucked drilling tool by vibrations, in particular in tough percussion-drilling operation, a catch device prevents the gripping sleeve (2) from being able to turn relative to the chuck body (1) in such a direction as to release the gripping jaws (7) during operation of the drill chuck. The catch device consists of a toothed rim (14) in which catch members (16) engage under spring force. The catch members (16) follow one another along the toothed rim (14) at a distance apart which is slightly smaller than the tooth spacing on the toothed rim (14) so that the catch positions, in which locking engagement of at least one of the catch members (16) on one of the teeth of the toothed rim (14) occurs, follow one another substantially closer than the tooth spacing on the toothed rim (14). For the intentional release of the chuck, all the catch members (16) can be simultaneously disengaged from the toothed rim (14) by means of a common adjusting member (17). <IMAGE>
Patent GB-421127-A (GB)
Title: Improvements in ships' davits
IPC: B63B23/04
Filed: 1933-06-14
Abstract: 421,127. Davits. CARR, G. W., 7, York Terrace, North Shields, Northumberland. June 14, 1933, No. 17008. [Class 115] A luffing davit comprises a number of articulated members 12 pivoted at the foot to a heel member 13 pinned at 27 to the deck and at the head to an arm 15 terminating in a fork 42 which embraces a sling rod 41 supporting the boat 39. The rope 19 for controlling the lowering operation passes over a pulley 36 at the head of the frame 34 which supports the davit when inboard and after passing over rollers 18, 20 is secured to the arm 15 at 21. When the boat is to be launched the rope 19 is slacked off and the weight of the boat causes the arm 15 to pivot about the adjacent member 12 until the outboard faces of the members contact. The members then pivot outward in succession until the davit assumes the full outboard position as shown in dotted lines. Hooks on the underside of the members 12 co-operating with supplementary members on the frame 34 ensure that the members 12 operate in proper succession. A member 47 pivoted beneath the deck and provided with a series of notches 50 limits the outboard movement of the whole davit structure. By arranging davits of this character alternatively of different height. Boats may be stowed along the side of the deck in a double tier with the boat in the lower tier overlapping the ends of the boats in the upper tier.
Patent GB-638519-A (GB)
Title: Improvements in or relating to electric immersion heaters
IPC: H05B3/78
Filed: 1947-06-27
Abstract: 638,519. Electric immersion heaters. BLAW-KNOX CO. June 27, 1947, No. 17010. Convention date, Dec. 22, 1945. [Class 39 (iii)] A heater 17 comprises a frame adapted to be inserted through a port in the jacket and carrying a closure member 22, a resistance element 30 being wound in loops back and forth longitudinally of the frame. The frame is formed of two side bars 21 between which is disposed a number of vertical insulating rods 26 of axial crosssection through which transverse rods 27 extend, the frame being carried by the closure member 22 adapted to close a port in a vessel, e.g. the vapour heating jacket of a processing vessel, into which the heater extends. A strip conductor 30 is wound back and forth longitudinally in three vertically spaced banks, each bank being a separate strip joined to the next bank by a vertical connecting strip 31. Several heaters enter the jacket at an angle, i.e. not radially, and are slightly curved in a horizontal plane, the closure member 22 being bolted to a flange on a neck protruding out of the jacket. Specification 638,512 is referred to.
Patent GB-1128074-A (GB)
Title: Cladding of joints in pipes or tubes
Inventor: JOHNSON JAMES STRETTON
IPC: B29C55/24
Filed: 1966-04-19
Abstract: 1,128,074. Cladding pipe or tube joints. STEWARTS & LLOYDS Ltd. 31 March, 1967 [19 April, 1966], No. 17043/66. Heading F2G. A method of cladding a pipe or tube joint comprises providing a sleeve 11 formed of a flexible and protective material which is elastic at ambient temperatures, the sleeve having an internal diameter when unstressed which is less than the external diameter of the joint to be clad. The sleeve 11 is then expanded on to a hollow mandrel 14 having an internal diameter greater than the external diameter of the joint and the mandrel is positioned over one of the components which forms part of the joint. The sleeve is displaced from the mandrel so that it covers the exterior of the joint and finally the mandrel is removed from the component. The sleeve 11 may be expanded on to the mandrel by a frusto-conical collar (Figs. 1, 2, not shown) removably attached to one end of the mandrel the collar and mandrel combination being urged into the sleeve by hydraulically actuatable means, e.g. a ram, or screw actuated means. The sleeve may be displaced from the mandrel by hydraulically actuatable means or screw actuated means. The hollow mandrel is longitudinally split. The pipes or tubes may be joined by screw threads.
Patent GB-104319-A (GB)
Title: Improvements in Tubes and Tube Manufacture.
Inventor: SMITH HARRY
IPC: B21D53/06
Filed: 1916-11-28
Abstract: 104,319. Smith, H., and Watson, S. G. Nov. 28, 1916. Tubes.-Tubes suitable for heat-radiating apparatus are seamed, expanded, and if desired fluted also at a single operation. The tube blanks, with their edges turned over and brought into engagement by bending the blank into cylindrical form on a hollow hand-mandrel, are brought in turn into position on the bottom die 10 of the press shown in Fig. G. The top die 9 is forced down by a cam 13 on the shaft 14. The dies 9, 10 are ribbed when it is desired to form flutes in the tube. For expanding the ends of the tube, laterally movable mandrels 11 are adapted to be brought towards one another, the dies 9, 10 being enlarged at the outer ends to receive the expanded ends of the tube. The mandrels 11 are moved inwards by cam-operated spring-return plungers 20 acting through inclines 24, 25, and are returned outwards by hand levers. The mandrels 11 are timed to enter the tube prior to the descent of the top die 9, but the formation of the seam and the expan. sion of the ends of the tube are made to synchronise. The seams may be soldered after the above-described process has been completed.
Patent GB-458165-A (GB)
Title: New or improved printing type and method or means for setting same
IPC: B41B1/02
Filed: 1935-06-13
Abstract: 458,165. Printing-surfaces. NIGHTALL, A. D., 45, Willow Road, Bedford. June 13, 1935, No. 17087. [Class 100 (ii)] Type-high printing elements, particularly for poster and other large work, comprise types cut or moulded from hard rubber, rubber composition, &c., mounted on a base having relatively slidable parts provided with upstanding and inturned elements engaging grooves at or near the edges of the types. In one form, the base comprises a member c to which are slidably attached by pins f and slot g two members d having upstanding edges i with inturned lips h to engage grooves in lugs b depending from the types a. In a modification, the base member c is omitted, the members d having a tongue-and-groove connection on their abutting edges.
Patent GB-379778-A (GB)
Title: Improvements in starter mechanism for internal combustion engines
IPC: F02N99/00
Filed: 1931-06-12
Abstract: 379,778. Turning-gear. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. June 12, 1931, No. 17093. Convention date, June 16, 1930. [Class 7 (v).] An engine starter comprises a flywheel 14 which is housed in a casing 11 rigidly secured to a rotatable member of the engine, such as the flywheel 3, and is normally connected to rotate with the engine member but is disconnected while being cranked. The starter may be used for outboard engines for propelling small boats. As shown, the starter flywheel 3 is coupled to the engine flywheel through a friction clutch member 39 normally held in engagement by a spring 42 abutting against the endplate 8 of the casing 11. The hub 35 of the clutch member 39 is threaded to engage the threaded boss 12 of the plate 8. In order to disengage the clutch member 39 when the flywheel 14 is to be set in rotation, a rod 45 carries a transverse pin 47 passing through slots in the boss 12 and held by a nut 49 in engagement with slots in the hub 35. The upper end of the rod 45 is provided with a disc 46 for engagement by a hand crank 32 used for setting the flywheel 14 in rotation. The hand crank drives the flywheel through planetary gear comprising a sun pinion 18 secured to the flywheel, an internal ring gear 22 mounted in the casing 11, and planet wheels 21 rotatable on a carrier plate 25, the hub 28 of which is fitted with a pin 31 for engagement by the slotted hand crank 32. When the flywheel 14 has been set in rotation and the hand crank 32 is removed, the clutch 39 is re-engaged by the spring 42, enabling the flywheel 14 to transmit its energy to the engine shaft 4, and the clutch 39 then remains in engagement. In a modification, Fig. 3, the spring 42 is omitted, the cranking pin 31 is replaced by a pair of lugs 31a, and the rod 45 extends above the hub 28 and is provided with an enlargement 46a to enable the clutch 39 to be manually engaged and disengaged.
Patent GB-1421344-A (GB)
Title: Process for refuse disposal and heat recovery
IPC: C10L5/46
Filed: 1972-11-29
Abstract: 1421344 Refuse disposal and heat recovery therefrom BLACK CLAWSON FIBERCLAIM Inc 29 Nov 1972 [30 Nov 1971] 17114/75 Heading C1K [Also in Division C5] A process for refuse disposal and heat recovery therefrom comprises (a) adding water to refuse comprising relatively frangible and infrangible organic and inorganic solids to form a pulpable mixture (b) pulping the mixture to disintegrate the refuse (a) preparing from the mixture of water and pulped refuse a slurry containing particles all having dimensions not exceeding a predetermined size consisting principally of combustible organic particles and being substantially free of inorganic particles, (d) concentrating the slurry by removal of water to form a substantially homogeneous concentrate of the particles and (e) burning the concentrate in a steam boiler furnace. Inorganic particles may be separated from the slurry during step (c), e.g. by cyclone. Fibres suitable for paper-making may also be separated from the slurry.
Patent GB-194652-A (GB)
Title: Improvements in or relating to pulverizing or grinding apparatus
IPC: B02C13/28
Filed: 1922-06-21
Abstract: 194,652. Powdered Fuel Plant Co., Ltd., (Assignees of Soc. Anon. la Combustion Rationnelle). March 8, 1922, [Convention date]. Addition to 181,290. Drawings to Specification. Impact pulverizers.-The vanes of the rotor of the pulverizing-apparatus described in the parent Specification are formed as helicoidal paddles, the pitch of which may vary on successive carriers from the inlet to the outlet of the pulverizer.
Patent GB-597933-A (GB)
Title: Shock absorber
IPC: F16F9/06
Filed: 1944-09-08
Abstract: 597,933. Hydraulic shock-absorbers. MONROE AUTO EQUIPMENT CO. Sept. 8, 1944, No. 17215. Convention date, Oct. 11, 1943. [Class 108 (iii)] An hydraulic shock-absorber adapted for horizontal mounting comprises a pressure cylinder A and an outer concentric casing N, a valve assembly E and a closure D at the:ends of the cylinder providing. aligned air bleed orifices 52, 53 at the uppermost part of the cylinder. As. shown, the shock-absorber is mounted between two upstanding spring- separated arms 10, 11. Fig. 1, of supporting bellcrank levers J, K for the 'bogie wheels L, M of an endless track structure for a tank, tractor or other vehicle, to which the levers are pivoted at 90, 91. Apertured attaching heads F, G are rigid with the valve assembly E and with the rod C of a double acting piston B, while a reserve chamber- O is formed between the cylinder and casing, and a dome-shaped auxiliary chamber P is mounted on the head F and the casing. Liquid wiped from the rod C by a seal 26 flows through one or more passages 29 in .the closure D to the reserve chamber O. The orifices 52, 53 are provided in annular recesses 50 in the bodies 30, 25 of the valve assembly E and closure D. The orifice 53 is.placed in alignment with orifice 52, on assembly 'of the parts, by means of a longitudinally extending indent 54 on the casing , N engaging a corresponding groove 55 in the body 25 of the closure D, the arrangement also preventing relative rotation of the casing N, closure D and cylinder A. The parts are held in position by a nut 60 screwed into the casing N and having a flange 61 overlapping the closure D. Sealing material 70 is inserted in an annular recess in the exterior of the casing to engage a tubular dirt shield 28 secured to the cover plate 27 on the piston rod. To afford access to the space 80 and particularly to the nut 60, one or more slots 81 are formed in the dirt shield and are normally closed by a cover ring 82. Operation. On compression of the shockabsorber, liquid in the cylinder A flows through outer passages 16 in the piston past a flexible disc valve 17. Simultaneously liquid is forced from the cylinder to the reserve chamber O through inner passages 31 in the body 30 of the valve assembly E, past a laminated spring valve 36. On rebound, liquid flows through the inner passages 15 in the piston past a spring-pressed slide valve 21 and simultaneously liquid flows from the reserve chamber O through outer passages 32 in the body 30 of the valve assembly E past a valve 33 acted on by a star-shaped spring 34. During operation, air in the cylinder A escapes through the orifices 52, 53 to the reserve chamber O and thence through registering openings 64, 65 to the auxiliary chamber P.