baber/WOPTO huggingface dataset:
Patent GB-1124614-A (GB)
Title: Combined extrusion residue receiver and billet guide for metal extrusion press
IPC: B21C33/00
Filed: 1967-01-16
Abstract: 1,124,614. Extruding. KOBE STEEL Ltd. 16 Jan., 1967 [19 Jan., 1966], No. 2323/67 Heading B3P. A metal extrusion press wherein the billet container 1 is movable transversely from the extrusion axis C-C to a cleaning and charging axis C<SP>1</SP>-C<SP>1</SP>, has a cap-shaped cover 15 movable into alignment with the container on the axis C<SP>1</SP>-C<SP>1</SP> for receiving the discard (7), Fig. 5 (not shown), the cover being movable transversely and having thereon billet guide means 33, Fig. 4, which can be brought into alignment with the container bore for guiding a fresh billet therein. After extrusion of a billet through die 2<SP>1</SP> in holder 2, by a ram 4 and dummy block (8), the container 1 is first retracted axially and the discard is severed by a saw. The container is then moved transversely along rail 9 into alignment with the axis C<SP>1</SP>-C<SP>1</SP> where the cover 15 receives the discard and dummy block (7, 8) pushed therein by a bar 10 and container cleaning member 11. Cover 15 is mounted on a pivot 21, Fig. 4, and is movable by a hydraulic motor 26, 27 to bring the billet guide means 33 into the axis C<SP>1</SP>. A hinged cover 19 is then opened by an hydraulic motor 29 to release the discard and dummy block. Meanwhile a fresh billet and dummy block (14, 36), Fig. 3 (not shown), are fed by a loader (35) and pushed into the container bore by a changing bar 12 operated by piston 13. The cover 15 may have a suction duct (34) for removing dust.
Patent GB-1274351-A (GB)
Title: Improvements in and relating to heat insulated vessels
Inventor: ERRINGTON THOMAS
IPC: G21C11/08
Filed: 1970-01-16
Abstract: 1,274,351. Reactors. WHESSOE Ltd. 19 April, 1971 [16 Jan., 1970], No. 2352/70. Heading G6C. In a nuclear reactor pressure vessel, thermal protection of the walls, or liners, is provided by a layer of insulation which is retained in position by cover-plates which are mounted so as to permit of their thermal expansion. The peg, 4, secured to the pressure vessel wall, 3, is provided with the flexible metal arms 5. The latter are welded to the adjacent insulation cover-plates, 1, which are free to expand laterally but are prevented from moving perpendicularly to the wall surface and the insulation la.
Patent GB-538653-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B9/34
Filed: 1940-02-09
Abstract: 538,653. Lenses. TAYLOR, TAYLOR & HOBSON, Ltd., and WARMISHAM, A. Feb. 9, 1940, No. 2488. Drawings to Specification. [Class 97 (i)] In an objective comprising four air-separated components, the first and fourth being simple convergent elements, and the third a simple asymmetrical double-concave element, the second component comprises a double-convex element cemented to a double-concave one, the glass of the convex element having a higher mean refractive index and a greater Abbe v number than the glass of the concave element. The difference of the refractive indices of the second component may lie between 0.025 and 0.045, and the refractive index andAbbe numbers of the third component may be respectively higher than 1.65 and substantially less than 33.5. The shallow side of the third component may be towards the front, its radius lying between twice and six times that of the other side, and the air separation of the second and third components may lie between 7¢ per cent. and 12¢ per cent. of the equivalent focal length of the objective. Specifications 477,424 and 517,386 are referred to ; data for one example are set out.
Patent GB-620823-A (GB)
Title: Improvements in or relating to the forging of projectiles
IPC: B21K1/00
Filed: 1947-01-27
Abstract: 620,823. Forging-machines. OMES, Ltd., and MORA, G. Jan. 27, 1947, No. 2552. [Class 83 (iv)] A process for closing in the walls of hollow workpieces for projectiles comprises holding the work in a clamping electrode with the end to be heated projecting from the electrode, bringing a second electrode into contact with the end of the work to effect heating to forging temperature and then bring- ing a die over the open end of the work and applying pressure to close in the walls. The press comprises a lower platen 11 carrying an insulating block 32 and four columns 12 on which slides an upper platen 13. To the upper ends of the columns is secured a head 14 in which reciprocate two side pistons 20, 21 for raising and lowering the platen 14 and a central piston 16 for applying forging pressure to the platen when required. The lower ends of two workpieces 30 are mounted in two steel blocks 31 positioned on the insulating block 32 and separated by insulation 33. Two hydraulicallyoperated electrodes 38, 39 clamp the work as shown. Secured beneath the upper platen 13 is a block 47 carrying two end-closing dies 54, 55, two electrodes 48, 49 and two positioning pins 56, 57, the block being rotatable by a handle 50 so that on lowering the platen either the electrodes or the dies engage the upper ends of the work-pieces. After the work has been clamped, the platen is lowered by means of pistons 20, 21 so that the electrodes 48, 49 engage the upper ends of the work until it is heated to the required temperature. The platen is then raised, the block 47 rotated and the platen again lowered so that the dies 54, 55 engage the work, whereupon pressure fluid is supplied to the top of the piston 16 to apply forging pressure. Hydraulic fluid is supplied to the pistons of the clamping electrodes 38, 39, the pistons 20, 21 and the piston 16 from a pump and under the control of separate valves.
Patent GB-126708-A (GB)
Title: Improvements in or relating to Automatic Guns Carried by Aircraft.
IPC: F41A19/12
Filed: 1917-02-21
Abstract: 126,708. Vickers, Ltd., Challenger, G. H., and Savage, H. A. Feb. 21, 1917. Fire between airc r a f t propeller blades, controlling and synchronizing. -Relates to the mechanism f o r firing automatic guns between the propeller blades of aircraft as described in the Specification 124,486, and consists in providing the cover of the gun mechanism casing with a firing-lever which is actuated by the propeller-engine and which co-operates directly with the hand-sear of the gun lock when the latter is in its forward position. The invention is shown applied to firing-mechanism, as described in Specification 126,386. The firing-lever B, operating a sear A<2>, is mounted on the cover A<1> of the mechanism casing, and is actuated from the propeller-engine by means of a rod B<4> acting through the medium of a lever B<3> and a spring- controlled trip B<2>. The parts are so arranged that the cover A<1> can be raised about the hinge a<1> without disconnecting any of the parts of the mechanism. To effect this, the pivot b<4> connecting the rod B<4> with the lever B<3> is arranged to be co-axial with the pivot a' when the parts are in normal position.
Patent GB-1491353-A (GB)
Title: Vehicle having hydraulic apparatus
IPC: E21D9/10
Filed: 1975-01-21
Abstract: 1491353 Vehicle with hydraulic apparatus O & K ORENSTEIN & KOPPEL AG 21 Jan 1975 [22 Jan 1974] 2579/75 Heading B7H A vehicle, particularly an earth moving machine, has hydraulically operated apparatus supplied from pumps driven by an electric motor 2 or an I.C. engine 8, the motor and engine also being capable of propelling the vehicle. In one embodiment the main electric motor 2 drives pumps 3 and 4 within a reservoir 7. An auxiliary power source is provided by the I.C. engine which drives pumps 9 connected to the reservoir. In another embodiment the engine and pump 9 are mounted on a trailer (Fig. 2, not shown). In a further embodiment (Fig. 3, not shown) only one set of pumps 3, 4 is provided these being selectively driven by the motor or engine through a gear train and clutches.
Patent GB-1488403-A (GB)
Title: Dental material
IPC: A61K6/893
Filed: 1975-01-21
Abstract: 1488403 Dental materials PERDENT GmbH 21 Jan 1975 [23 Jan 1974 6 Feb 1974] 2593/75 Heading C3P A material suitable for dental application comprises (a) a polymerizable monomer and/or a polymer (suitable for dental purposes) selected from polystyrene polyamides, epoxy compounds, polyurethanes, and monomeric and polymeric (meth)acrylates, and (b) 10-90% of a microfine inorganic filler having a particle size in the range 10-400 mÁ. The filler may be SiO 2 , Al 2 O 3  or a glass, such as a borosilicate, or lithium/aluminium glass, or one containing BaO or La 2 O 3 , and may be silanized prior to incorporation into the dental material. In the examples, the filler employed was microfine silica, used either untreated or after silanization with methacryloxypropyl trimethylsilane. Various monomer/polymer/initiator systems were used, namely (1) "Bis-GMA" (based on bisphenol A and glycidyl methacrylate), plus ethylene glycol dimethacrylate, plus benzoyl peroxide, plus dimethyl paratoluidine, (2), 2,2 - bis[4 - (2 - hydroxy - ethoxy) - phenyl]- propane dimethacrylate, plus benzoyl peroxide, and (3) polymethylmethacrylate, plus monomeric methyl methacrylate, plus the reaction product of hydroxyethyl dimethacrylate and hexamethylene diisocyanate, plus benzoyl peroxide.
Patent GB-288755-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/39
Filed: 1927-01-29
Abstract: 288,755. Ruau, F. F., and Molins Machine Co., Ltd. Jan. 29, 1927. Cigarette - making machines. -A suc tion device 11 is pro vided for removing dust as the tobacco passes from the combing roller 2 and distributor roller to the trough 10 of a continuous - rod ma chine. The mouth 12 of the chamber 11 extends parallel to the picker roller ! and the dust passes through the opening 13 in a detachable shield 14 which partly encircles the picker. The chamber may be swung about its pivot 20. Above the dust suction device are magnets 6 for removing iron, baffle plates 16, 17, 18, and a further suction conduit 19 for removing dust above the plate 16. Specification 249,575 is referred to.
Patent GB-966252-A (GB)
Title: Water-insoluble disazo dyes and process for their manufacture
IPC: C09B31/02
Filed: 1962-01-24
Abstract: The invention comprises disazo dyes free from vinylsulphonyl groups and from radicals capable of forming said groups under dyeing conditions and also free from acid water-solubilizing groups, which are of formula A-N=N-B-N=N-D wherein B is a benzene residue containing an alkylsulphonyl, phenylsulphonyl, benzylsulphonyl, phenylsulphonylalkyl, phenoxysulphonyl or a sulphonamide group of formula <FORM:0966252/C4-C5/1> wherein R1 is an alkyl residue and R2 is an alkyl, cycloalkyl or phenyl residue or R1 and R2 may form a heterocyclic ring with the nitrogen atom, B is a 1,4-phenylene or -naphthylene residue and D is a benzene residue having an hydroxy group in p-position to the azo group. The dyes are prepared by diazotizing an aminoazo dye A-N=N-B-NH2 and coupling with a p-coupling phenol.  They may be used to dye hydrophobic fibrous materials such as cellulose ether and ester, polyamide, polyurethane and polyester fibres in yellow to red shades.  The preparation of the following dyes is described in examples. <FORM:0966252/C4-C5/2>
Patent GB-557837-A (GB)
Title: Improvements in or relating to the optical projection of images exhibiting relief effects
IPC: G03B21/60
Filed: 1942-03-04
Abstract: 557,837. Optical-projection apparatus. BAIRD, J. L. March 4, 1942, No. 2840. [Class 97 (i)] Images corresponding to a plurality of planes of a scene are projected successively on to screens correspondingly spaced apart, each image being only of objects in its particular plane. Projection may be on to screens successively moved into position, and, as shown, three screens 19, 20, 21, are formed by translucent areas on transparent discs 16, 17, 18, rotatable together, and visible through a viewing opening 23. The projection lens may comprise sections 24, 25, 26, respectively focusing an image of the screen of a cathode ray tube 22 on the screens, and the operative section of the lens may be changed in synchronism with image and screen changes by means of slots 27, 28, 29 in a rotating shutter. The lens may, alternatively be a single lens with sufficient depth of focus to produce satisfactory images en each screen, and the slotted shutter may then be omitted. Stationary gauze screens rendered selective by the use of colour, or polarized light and polarizing screens, may replace the moving screens. An embodiment comprising two rotating screens is described.
Patent GB-1155802-A (GB)
Title: S-Benzoyloxymethyl-Thiamine O-Esters and Process
Inventor: ALO FRANCO D
IPC: D06M13/385
Filed: 1968-01-19
Abstract: 1,155,802. Thiamine derivatives. WARNER LAMBERT PHARMACEUTICAL CO. 19 Jan., 1968 [24 Jan., 1967], No. 2938/68. Addition to 1,082,184. Heading C2V. The invention comprises S-benzoyloxy-methyl thiamine O-esters of formula where Acyl is an acyl group derived from a hydrocarbon mono- or di-carboxylic acid of from 2 to 9 carbon atoms or from formic acid and R is hydrogen, halogen or alkyl of from 1 to 3 carbon atoms, and pharmaceutically acceptable acid addition salts thereof. The compounds are prepared by reacting free S- benzoyloxymethyl thiamines of formula where R is as above, with an acylating agent containing 1 to 9 carbon atoms. In examples, esters are prepared by reacting S-benzoyloxymethyl thiamine with formic acid, acetic anhydride, propionic anhydride, benzoic anhydride and succinic anhydride; addition salts are prepared by reaction of the esters with hydrochloric acid, phosphoric acid, tartaric acid, lactic acid, methane-sulphonic acid, benzoic acid and salicylic acid.
Patent GB-102546-A (GB)
Title: Improvements in Inner Tubes for Pneumatic Tyres.
IPC: B60C5/08
Filed: 1916-02-28
Abstract: 102,546. Davies, T. M., and Stepney Spare Motor Wheel, Ltd. Feb. 28, 1916. Air tubes.- In air-tubes having, at the rim part, a protecting strip of rubber containing pitch or like material, the tube a is moulded on a smooth mandrel with the strip b on the inside, and is then wrapped and vulcanized. The tube is then turned inside out, so that the finished tube has a smooth surface, the part b normally assuming the incurved position shown. The edges of the protecting-strip may be tapered, or the same result obtained by building up the strip in plies of graded widths.
Patent GB-1059012-A (GB)
Title: Improvements in or relating to portland cement
IPC: C04B24/12
Filed: 1965-01-22
Abstract: An alkanolamine acetate or acetylated alkanolamine acetate is intimately mixed with Portland cement, preferably in an amount 0.005-0.050% by weight of the cement, as a pack set inhibitor. The acetate may be introduced during the grinding of the cement clinker, in which case it acts also as a grinding aid.
Patent GB-1034311-A (GB)
Title: Improvements in or relating to fluoaluminates
IPC: C01F7/54
Filed: 1963-01-24
Abstract: An electrolyte for the production of Al by fusion electrolysis consists of a fluoaluminate of Na and Li, NaxLiyAlzFn, in the form of a stable compound, and containing by weight 16.4 - 32.4% Na 0.26 - 5.14% Li 13 - 16.2% Al 54.5 - 62.3% F [see Division C1]ALSO:A fluoaluminate of Na and Li, NaxLiyAlzFn, in the form of a stable compound, and containing by weight .16.4-32.4%.Na .0.26-5.14%.Li .13-16.2%.Al .54.5-62.3%.F is prepared by reacting, in a continuous process in aqueous medium, compounds of Na, Li, Al and F in the above elemental ratios; withdrawing the solid product and recycling the mother liquors; and maintaining the amount of water constant.  The starting materials may be HF, Al(OH)3, Al3O3, AlF3, NaOH, Na2CO3, NaF, Li2CO3, LiOH, LiF, Na or Li aluminate, or Na fluoraluminate. The reaction may be conducted at 30-60 DEG  C., and the product dried at 400-550 DEG  C.  It is used as an electrolyte in Al production.
Patent GB-547172-A (GB)
Title: Improvements in and relating to control valves for hydraulic presses
IPC: B30B15/18
Filed: 1941-03-07
Abstract: 547,172. Hydraulic presses. TOWLER, J. M., and TOWLER, F. H. March 7, 1941, No. 3114. [Class 69 (ii)] The valve mechanism of a hydraulic press is constructed so as to permit only of an initial restricted release of the high pressure on opening of the press. The mechanism comprises a pair of valves 4, 5 connected by a transverse passage 6 and when pressure is applied the liquid enters an opening 7, passes a reduced part of valve 5, which is so set to close the exhaust chamber 9, and passes to the press cylinder via the open valve 4 and pressure chambers 8. When the pressure builds up in chamber 8 the valve 4 closes against the action of a spring 14, and this valve opens only when the pressure drops to a predetermined value upon opening of the press, the pressure being gradually reduced by passage of the liquid through a pipe 21 fitted with a choke which byepasses the valve 4. When the valve 4 is closed pressure can continue to build up in the press by passage of fluid through a non-return valve in a by-passage between the passages 6, 8, or through a non-return valve formed in the head 4a of valve 4 and comprising a flexible washer 16 seating against the lower face of apertures 15 in the head 4a. Valves of mitre type may replace those of the packingless piston type shown. Specification 524,564 is referred to.
Patent GB-195813-A (GB)
Title: A heat deflecting device particularly for electrical rheostats and the like
IPC: H01C1/022
Filed: 1922-02-02
Abstract: 195,813. Thermal Electric Works (Hackbridge), Ltd., and Swainson, E. Feb. 2, 1922. Resistance casings.-In order to keep the casing of a rheostat &c. cool means are provided for directing the escaping hot air so that it does not impinge on the casing. A baffle plate 1 is situated a short distance below the top 2 of the rheostat casing and is formed with a number of slots or holes 4 corresponding in position and shape to the slots 6 in the top of the casing but of smaller size. The baffle is secured to the casing by bolts and nuts 9. Hot air rising through the slots 4 is diverted from the sides of the slots 6 as shown by the arrows in Fig. 5.
Patent GB-755239-A (GB)
Title: Writing pens
Inventor: JACOBS EDWARD SAMUEL
IPC: B43K24/06
Filed: 1954-02-03
Abstract: 755,239. Reservoir pens. MYERS & SON, Ltd., M. Dec. 1, 1954 [Feb. 3. 1954; March 29, 1954]. Nos. 3188/54 and 9062/54. Class 146(3) In a ball - point pen wherein the writing unit e is retractible within the holder, the holder comprises two interfitting relatively rotatable parts a, b, the end of the ink reservoir fits tightly over a projection n on a plug i slidable within an inner sleeve d, and this sleeve is slidable within an outer sleeve c. The sleeve c fits tightly in the end of the holder part a, and the sleeve d is fixedly secured in the end of the holder part b. A pin m passes through the plug i, a helical slot g in the inner sleeve, and a logitudinal slot f in the outer sleeve, whereby when the part b is rotated relatively to the part a, the plug i and writing unit e are moved axially of the holder. To replace the writing unit e, the holder parts a, b, are separated by pulling them apart, and both the sleeve c and unit e are withdrawn from the part a. The projection n is flattened or grooved to allow air to enter the reservoir, and further air grooves o in the body of the plug i are provided. The ends of the helical groove g are notched to provide a temporary retaining means for the pin m in its extreme positions.
Patent GB-552800-A (GB)
Title: Imprinting apparatus
IPC: B41L19/00
Filed: 1942-03-13
Abstract: 552,800. Rollers. WILLIAMS, W. P. (Standard Register Co.). March 13, 1942, No. 3362. [Class 42 (ii)] [Also in Group XVI] In a machine for feeding record sheets (see Group XVI), sheet-feeding rollers each comprise semicylindrical members 70 covered with rubber 71 clamped between end members 62 each comprising two semi-circular parts connected together by an arcuate strip secured to one part by rivets 64 and to the other part by a pivot 65.
Patent GB-743854-A (GB)
Title: Improvements relating to polyphase electric rectifiers
Inventor: SMART DAVID LORIMER
IPC: H02H7/12
Filed: 1953-02-06
Abstract: 743,854. Rectifying. ENGLISH ELECTRIC CO., Ltd. May 6, 1954 [Feb. 6, 1953], No. 3411/53. Class 38 (2). A polyphase rectifier equipment in which each phase terminal, e.g. 17a, feeds a plurality of rectifying paths in parallel, e.g. the anodes 10a, 11a, 12a of a number of mercury arc rectifiers 10, 11, 12, has inductors in each of the anode circuits which carry current according to that in the rectifying path, secondary windings being arranged on the inductors and connected to respond to the rates of change of flux in the inductors such that when the load is being shared unequally a warning or control device is operated. The operative device is operated by a relay 33 which is energized by the voltage drop across a resistor 31 over a rectifier bridge 32. The resistor 31 is connected in a series circuit which comprises the secondary windings on the inductors 18a, 18d, 19b, 19e, and 20c, 20f together with an inductor 30. When the arcs are simultaneously commutating from anodes 10a, 11a, 12a to anodes 10c, 11c, 12c respectively and the load is being shared equally current flowing in some of the associated inductors will be equal and opposite to that flowing in others of the inductors. No E.M.F.'s will thus appear--in the series circuit and thus the relay 33 will remain unoperated. Should unbalance occur or commutation go awry current will flow in the series circuit and the relay will operate. Similar series circuits are associated with the remaining inductors and rectifier bridges 36, 39 which are also arranged to operate the relay 33. The series circuits being mainly inductive reduce the voltage peaks across the rectifier bridges and the relay 33 is made sluggish to overlook momentary fluctuations in anode currents. In other embodiments certain inductors may be wound on common cores and certain secondary windings may be arranged so as to cancel the effects in the series circuits of any direct current ripple.
Patent GB-112545-A (GB)
Title: Improvements in and relating to Systems of Electric Motor Control.
IPC: B60L7/12
Filed: 1917-03-08
Abstract: 112,545. British Thomson-Houston Co., (General Electric Co.). March 8, 1917. Systems for continuous - c u r r e n t motors only.-In a regenerative system for a number of series motors, connexion is maintained between the series fields and armatures of a portion of the motors and the supply while the other portion of the motors is separately excited and controls the excitation of the first portion. During starting, the four motors 1 - - 4 and their respective fields 1<1> - - 4<1> are connected in series with the resistance 5 and the resistance is cut out when the controller C reaches its running position C. A small generator 6 driven by an auxiliary motor 7 is excited by a shunt generator 8 also driven by the motor 7. To start regeneration, the controller is moved to the position d. The connexions between the motors and the supply are not disturbed but the generator 6 is connected across the field 4<1> of the motor 4 and the field of the generator is supplied from the generator 8 through the resistance 13. The armature of the motor 4 is connected in a closed circuit with the field coils 1<1>, 2<1>, 3<1> and the resistance 12 as shown in Fig. 4. Further movement of the controller varies the braking effect by varying the resistances 12, 13. In a modification, the resistance 12 is omitted from the circuits. In another modification, Fig. 6, the series connexion is maintained between the motor armatures, but the field coil 4' is disconnected from the main circuit and separately excited by the generator 6.