baber/WOPTO huggingface dataset:
Patent GB-971905-A (GB)
Title: Apparatus for use in the preparation of stacks of flexible sheets
Inventor: HAWKES HOWARD THEODORE
IPC: B65H11/00
Filed: 1960-11-03
Abstract: 971,905. Loading and unloading pallets; lift trucks. SOUTHWORTH MACHINE CO. Nov. 3, 1960, No. 37846/60. Headings B8C and B8H. [Also in Division B6] Apparatus for handling sheets includes means for removing portion by portion, a stack of sheets from a support to an apparatus for carrying out an operation on them and comprises means for raising a side edge of the topmost portion and a transfer device which may be inserted progressively between the portion and the remainder of the stack and removed from above the stack with the portion supported on it. A second identical apparatus is used for restacking the sheets after the operation. The stack is supported on a pallet 125 which is raisable in steps. The transfer device 22 is self-propelling on rails and has a table top 21 adjustable in height and with, in one embodiment, a wedge-shaped protrusion which enters progressively between the portion and the remainder of the stack. The table may be transparent to enable an operator to see the stack beneath and movement of the sheets over it may be assisted by pressure air through ball valves, Fig. 7, and a driven friction or suction roller 104. The latter may additionally pull down and dispose of the protective sheet between the pallet and stack. In another embodiment, in lieu of the protrusion, wedge-shaped spars (97), 98 extend in front of the table separated by the stack width. The portion edge is raised by a bar 94 inserted manually and then raised by the spars as the table advances until the roller engages the lowermost sheet, Fig. 11. The sheets are slid off the table on to the bed of, for example, a trimming machine and after trimming, on to a similar table for stacking on a pallet 36. In stacking, the table advances to straddle the pallet and stack which are raised beneath it. It then withdraws depositing the portion. The bar 94 may remain in place when the sheets are placed on the trimmer to bridge the slot in its bed. Specification 971,906 is referred to.
Patent GB-1180160-A (GB)
Title: A Process for preparing Rose Oxide
Inventor: BOESE DIETER
IPC: C07D309/04
Filed: 1968-08-08
Abstract: 1,180,160. Rose oxide; 3-chloro-2,6-dimethyloct-1-en-8-ol. L. GIVAUDAN & CIE SOC. ANON. 8 Aug., 1968 [24 Aug., 1967], No. 37876/68. Heading C2C. Rose oxide, 2-(2<SP>1</SP>-methyl-1<SP>1</SP>-propenyl)-4-methyltetrahydropyran, is prepared by the pyrolysis of 3 - chloro - 2,6 - dimethyloct - 1 - en - 8 - ol which may be prepared by chlorination of citronellol with chlorine. The product may be purified to yield a mixture of isomers in the ratio cis: trans = 2: 1 or to yield the pure cis isomer. Specification 1,079,421 is referred to.
Patent GB-325923-A (GB)
Title: Improvements in or relating to gas brackets
IPC: F21V37/00
Filed: 1928-12-24
Abstract: 325,923. South Metropolitan Gas Co., and Ellis, H. G. Dec. 24, 1928. Brackets, gas.--A plate 1 is slidably and non- rotatably mounted on a gas bracket or like gas fitting so that it can be moved in one direction to allow the joint with the service pipe 4 to be effected and inspected and then moved in the other direction and be secured as by screws 7 to a wall plate. 8, ceiling rose or. the like, to conceal the joint and secure the fitting in position. The plate is formed with a non-circular aperture engaging a correspondingly-shaped part 2 of the fitting or slots engaging keys or feathers on the fitting.
Patent GB-1135149-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1967-08-18
Abstract: 1,135,149. Shutter mechanisms. AGFAGEVAERT A.G. Aug.18, 1967 [Aug.27, 1966], No.38223/67. Heading G2A. A locking slider for preventing double exposures can engage with either the camera release or the film advancing means, and has a plate-like extension which acts as a shutter blade. The slider, tensioned by a spring 11 connected to a lug 4k thereof, acts similarly to the slider described in Specification 1,135,150 to prevent double exposure and double film wind. The shutter blade 4c is formed integrally with the slider, and has two tabs 4f, 4g, separated by a gap 4h. When the release 2 is pressed, the slider is freed to move to the left under the action of spring 11. Thus the blade 4c moves across the exposure aperture 15 from the initial position shown in Fig.1, uncovering it for the period corresponding to the gap 4h. (This period may be varied by a retarding mechanism acting on the slider). The release slide 2 has a blade portion 2d which, in the initial position of Fig.1, covers the aperture 15. When the release is pressed, this blade 2d moves downwards so that it is no longer aligned with the aperture, thus enabling an exposure to be made as shutter blade 4c moves laterally across the aperture. After the exposure, release slide 2 is retracted to the Fig.1 position again by a spring 3, so that aperture 15 remains covered as gap 4h passes across it again as the locking slider is pushed back to the left by the film advancing mechanism.
Patent GB-1124850-A (GB)
Title: Braking system
IPC: B60T13/68
Filed: 1966-08-30
Abstract: 1,124,850. Air braking system. CLEVELAND TECHNICAL CENTER Inc. 30 Aug., 1966 [13 Oct., 1965], No. 38566/66. Heading F2F. A brake system having means operative to effect application of brakes responsive to a reduction of fluid pressure in the brake pipe and means establishing a pressure of fluid in the brake pipe, comprises a vent valve 71 communicating with the brake pipe 1, a control operable to open the vent valve to permit release of fluid therefrom and automatic means for closing the vent valve after the fluid pressure in the pipe has been reduced by a predetermined one of several predetermined pressure drops. The brake pipe 1 is connected by pipes 61, 64, and a normally closed electrically operated valve 66 to the main reservoir 28 and by a pipe 67 to five pressure-operated switches set to close when pressure drops of 10, 13, 15, 20 and 25 p.s.i.g. respectively have been established in the brake pipe. The driver's control handle 79 is movable to positions 81-88 corresponding to " Run," " Lap," the five different pressure differentials and " Emergency," and operate the correspondingly numbered switches shown in Fig. 2, which depicts the " RUN " situation. The pressure-operated switches are connected to a normally open electrically operated brake pipe vent valve 71, and a further normally closed vent valve 72 is provided. In the " Run " position switch 81s is closed to energize coil 66c of valve 66, coils 71c of valves 71 energized through switch lines 83b to 87b and coil 72c of valve 72 is open circuited. Valve 71 is thus closed and the brake line 1 changed from the reservoir 28 through the opened valve 66. In the " Lap " position only switch 81c is moved to open circuit coil 66c and allow valve 66 to close to maintain conditions in the brake pipe. In the " 10 1b." position switch 83s moves rightwards to open circuit coil 71c, the valve 71 opening to vent the brake pipe until, when the required pressure differential exists the pressure switch 73 closes its contacts to reenergize coil 71c through lines 83a. The other differentials are achieved in like manner by the appropriate switches 84 to 87 and 74 to 77. In the " emergency " position coil 72c is energized and vent valve 72 opens to vent the brake line.
Patent GB-386190-A (GB)
Abstract: 386,190. Clips. MONK, H., 42, Pepy's Road, New Cross, London. Sept. 5, 1932, No. 11957. [Class 44.] A sheet-metal clip for holding newspapers on doors consists of a spring strip C bent at one end to form an inturned scroll and at the other to form an abutment. The spring is secured to a back plate B by a screw or rivet A at an intermediate point which, when the spring is in an unstrained condition, stands a short distance from the back plate.
Patent GB-1204921-A (GB)
Title: Processes for the preparation of 13-alkyl-gonapentaenes
IPC: C07D493/10
Filed: 1967-08-23
Abstract: 1,204,921. 13-Alkyl-gonapentaenes. ROUSSEL-UCLAF. 23 Aug., 1967 [25 Aug., 1966; 25 Nov., 1966; 7 July, 1967], No. 38828/67. Heading C2U. Optically active compounds of formula (wherein R is C 1-3  alkyl in the α- or #-configuration and the 3-alkoxy group has 1-10 carbon atoms), which compounds may bear additional nuclear substituents, are prepared by the action of a cyclization agent on the corresponding optically active 3-alkoxy-17,17-alkylenedioxy- 13 - alkyl - 9,10 - seco - gona - 1,3,5(10),8(14) - tetraen-9-ones (wherein the alkylene group has 2-4 carbon atoms and is optionally substituted) or on the magnesium complexes obtained by reacting an optically active 3-(1-alkyl-2,2- alkylenedioxy - 5 - hydroxy - 4 - cyclopentenyl)- propionic acid lactone with a 3-(m-alkoxyphenyl)-propyl magnesium halide. 19 - Nor - testosterone and its 13# - ethyl homologue are prepared from 3-methoxy-estra- 1,3,5(10),8,14-pentaen-17-one and its 13#-ethyl homologue via 3-methoxy-estra-1,3,5(10),8-tetraen-17-one and its 13#-ethyl homologue.
Patent GB-1314989-A (GB)
Title: Method and apparatus for detecting separation of two parts of a pattern
IPC: B22C15/24
Filed: 1970-08-12
Abstract: 1314989 Foundry moulding machines and patterns EARL A THOMPSON MFG CO 12 Aug 1970 [28 Aug 1969] 38936/70 Heading B3F [Also in Division G1] In a moulding machine, which uses a pattern comprising two parts 10, 12 with coacting partign surfaces 14, the separating of the two parting surfaces is detected by supplying pressure fluid to a bore 18 passing through part 12 and ending at the parting surfaces 14, and measuring the pressure in the bore. The pressure fluid is supplied to the bore 18 by an extensible tube 22, the end 32 of which is extended to meet a nozzle 20 on the pattern. A double-acting cylinder 36 retracts and extends the tube 22 to engage one of several patterns mounted on a rotating table 16. In order to accommodate upward movements of the pattern the tube 22 is pivoted at 28. Pressure fluid is supplied by a reservoir 48 through a constant pressure valve 46 and cut-off valve 45 to the tube 22 and bore 18. If the pressure remains constant then a diaphragm 52 remains stationary and maintains an electrical switch 58 open. Should the pressure drop (if the pattern parts are not closed tightly) the diaphragm 52 moves closing the switch 58 to complete an electrical circuit 60 which operates a warning device 62 and/or a by-pass mechanism 64. The by-pass mechanism 64 enables the faultily closed pattern to pass through moulding or preparation stations set around the rotating table 16 without operating these stations.
Patent GB-903383-A (GB)
Title: Improvements in or relating to the reduction of fly and fibre dust liberation from yarn
Inventor: SMART EDWARD JOHN LYNN
IPC: B65H71/00
Filed: 1957-12-14
Abstract: 903,383. Finishing and clearing yarns. COTTON SILK & MAN MADE FIBRES RESEARCH ASSOCIATION. Dec. 15, 1958 [Dec. 14, 1957], No. 38952/57. Classes 120 (2) and 120 (3). Yarn containing fly and fibre dust, e.g. as produced during " gassing," is passed with a dual traversing and forwarding motion over a surface which is of such a nature, e.g. roughened, that a large portion of the fly &c. is separated from the yarn as a result of friction between the surface and the yarn, and the fly &c. is collected so as to prevent its release to the atmosphere. In the apparatus shown, a box 11 houses a thin, rigid, metal plate 18 backing a piece of copper wire mesh fabric 13 across which passes a yarn 25 entering through a gap 20, to which the end is led by a self-threading device 14, and leaving through a gap 26. The cleared yarn is wound on a cheese, bobbin or cone, the winding action effecting the dual motion of the yarn. Fly &c. falls into the box and is removed, periodically, by use of a removable closure or continuously by exhaustion of air from the box. The fabric 13 may be replaced by a grid or grill.
Patent GB-871119-A (GB)
Title: Improvements in nuclear reactors
Inventor: TURNER FREDERICK HENRY
IPC: G21C11/02
Filed: 1958-12-04
Abstract: 871,119. Reactors. BABCOCK & WILCOX Ltd. Dec. 2, 1959 [Dec. 4, 1958], No. 39095/58. Class 39(4). In a gas cooled, graphite moderated nuclear reactor, the biological shield consists of three concentric, vertical, cylindrical walls of which the inner is heat resistant concrete, the intermediate is of granular material and the outer is of ordinary concrete. As shown, Fig. 1, the pressure vessel 2 is enclosed in the shield 4, composed of the inner, intermediate and outer walls 8, 18 and 10 respectively. The granular material of wall 18 is introduced through channel 21 and may consist of sintered shale or refractory aggregate. The concrete pile cap 14 is formed integrally with wall 10 and is provided with an annular recess 15 into which wall 8 extends, leaving a gap 16 to permit differential thermal expansion. Reinforcing steel lattices are incorporated in walls 8, 10. Tubes 38, 40 are provided for experimental work. In an alternative wall construction, not shown, steel mesh or sheet are secured to the inner surface of 8 to increase the heat transfer from 8 to the cooling gas circulating as shown by the arrows 26 to the outlet ducts 28.
Patent GB-1390118-A (GB)
Title: Delay lines
IPC: H03H9/145
Filed: 1972-08-23
Abstract: 1390118 Surface wave transducers MARCONI CO Ltd 18 July 1973 [23 Aug 1972] 39168/72 Heading H3U In a surface wave delay line having at least one transducer with interdigitated electrodes 10, 12 and not all adjacent teeth of respective electrodes being equally spaced, the larger spacing(s) between adjacent teeth are a whole number multiple of the minimum spacing. As shown the teeth are arranged in two groups separated by a gap 20 which is an integral multiple of finger spacing d. A mathematical analysis of behaviour is given, and the insertion loss/frequency characteristic. The use of a number of groups is envisaged, including a transducer with every alternate pair of teeth omitted. The delay line may be connected in the feedback path of an amplifier to form an oscillator.
Patent GB-1519323-A (GB)
Title: Device for measuring the width of a strip
IPC: G01B11/04
Filed: 1975-09-25
Abstract: 1519323 Strip width measurement BETRIEBSFORSCHUNGSINSTITUT VDEH - INSTITUT FUR ANGEWANDTE FORSCHUNG GmbH 25 Sept 1975 [26 Sept 1974] 39254/75 Heading G1A Apparatus for strip width measurement comprises means 8 to scan strip 1 with a focused light beam and a grating 11 of alternate opaque, 12, and transparent portions on to which lens 10 focuses the reflected beam such that it scans it transversely, means 13 to produce pulses in accordance with the resulting modulations of the beam, and evaluation means 14 giving an output signal dependent on the number of pulses in each scan. Via prism 5 and lens system 6, 7 a line image 0À5 mm wide is provided from a wider beam from laser 4, and made by revolving mirror system 8 to scan the strip width. The grating line spacings and widths are equal. Pulses from photo-multiplier 13 pass to electronic module 14 and indicator 15. The strip width = (a/f-1) g.n., where a is the distance from strip 1 to lens 10 of focal length f, g the centre to centre grating line spacing and n the number of pulses per scan. In the embodiment of Fig. 2 (not shown), two gratings with detectors and at different distances from the strip are used to correct for alteration of the strip/grating distance. The correct strip width is given approximately by b 2 -(b 1 -b 2 ) a/c, where b 1  and b2 are the apparent strip width values obtained at distances a and c respectively.
Patent GB-804560-A (GB)
Title: Improvements in or relating to insulated electric telephone conductors
IPC: H01B11/00
Filed: 1956-12-27
Abstract: 804,560. Air-space cables. PASTA S.p.A. Dec. 27, 1956 [Dec. 28, 1955], No. 39278/56. Class 36. A telephone cable is formed by standing two or more conductors, the insulation of each of which is star-shaped in cross-section with external ribs projecting from and integral with a thin continuous layer applied around the conductor, the stranding lay being such that a rib on one conductor cannot penetrate between two ribs on another conductor. The ribs may be axial or, as shown, helical.
Patent GB-1389750-A (GB)
Title: Process of or the production of metal powders poor in oxygen
IPC: B22F9/08
Filed: 1972-08-23
Abstract: 1389750 Granulating metals MANNESMANN AG 23 Aug 1972 [31 Aug 1971] 39343/72 Heading C7X Molten metal e.g. steel, is atomized at 1 and the granules are fed to a fluidized bed 5 of e.g. sand or a metal which may be the same or different from the metal being granulated. Non- oxidizing, reducing or neutral gas is supplied at 6 and the bed material and metal granules removed by suction at 8. The mixture is separated at 12 and the bed material returned through a conduit 18. In modifications Fig. 2 (not shown), the screen 4 may be inclined and Fig. 3 (not shown), the screen may be sloped towards the centre and the granules are removed by gravity.
Patent GB-1308117-A (GB)
Title: Shear
IPC: B23D33/02
Filed: 1971-08-23
Abstract: 1308117 Shearing DANIELI & C SpA 23 Aug 1971 [28 June 1971] 39399/71 Heading BW3 Pairs of disc cutters 20, 22 are mounted on housings 10 which are pivotable relative to a base by cylinder units 18 to bring the cutter pairs alternately into cutting position. Roller stock is fed through a switch guide 38, pivotable by a cylinder unit 40, to an outlet guide 42 or 44. In operation, with stock being fed through guides 38 and 42, the guide 38 is pivoted to move the stock into the cutting zone of the lower discs 22 where it is cut and then into the non-cutting zone of upper discs 20. The newly cut stock end is fed into the guide 44. The housings 10 are pivoted to bring the upper discs into cutting position and a second cut takes place when the guide 38 is pivoted to its lower operative position and moves the stock through the upper cutting zone. A further pivoted switch guide may follow the guides 42, 44 and be pivoted between two or more operative positions. One motor 32 drives both cutter pairs through bevel gears 28, 30.
Patent GB-937906-A (GB)
Title: Improvements in or relating to hay tedders
Inventor: SMITH KEITH STAFFORD
IPC: A01D78/02
Filed: 1960-11-18
Abstract: 937,906. Hay-tedders. BLACKSTONE & CO. Ltd. Feb. 8, 1962 [Nov. 18, 1960], No. 39748/60. Class 6(3). Relates to hay-tedders of the type in which a rotating tinecarrying frame 29, 30 is located in a cowling 50 which is open towards the rear and is driven around so as to pick up hay on the tines 31 and first to carry it upwardly and forwardly and then to throw it out behind the cowling. According to the invention stationary guardmembers 74 are disposed within the cowling to extend around the frame 29, 30 close to the end-tines thereon from a position where these tines engage the crop to a position where the crop is thrown off, so as to prevent lateral dispersion of the crop. The invention is shown applied to the tedder described in Specification 937,905 and the guards 74 are shaped so as to present approximately helical edges 82 to the tines so that they approach the latter more closely near the discharge position. The cowling has returned sides 51 to which the guards 74 are secured by brackets 80. Windage of hay around the ends of the tine-carrier is further prevented by flanged end-plates thereon which co-operate with the guards.
Patent GB-1350494-A (GB)
Title: Process for producing coke product
IPC: C10B53/08
Filed: 1971-08-24
Abstract: 1350494 Coking coal PULLMAN Inc 24 Aug 1971 [26 Jan 1971] 39751/71 Heading C5E A process for coking a dried, ground, natural coal comprises blending 75 to 91% by weight of the ground coal with a binder comprising a pyrolysis residue of a gas oil, briquetting the blend at a pressure of at least 800 p.s.i.g. and coking the briquettes, optionally after curing, by heating them to at least 1450‹ F., during which heating the rate of temperature rise is controlled to lie in the range 150‹ F. to 625‹ F. per hour between the temperatures of 700‹ F. and 1100‹ F. The residue should have an I.B.P. in the range 650‹ F. to 1100‹ F., and in an example is obtained by steam cracking a gas oil at between 1300‹ F. and 2800‹ F. for from 0-25 to 5 seconds. In the example, a blend of 75% lignite and 25% bituminous coals is dried and ground and the binder sprayed on to the ground coal in a pug mill at a temperature in the range 350‹ F. to 500‹ F., after which briquetting at that temperature and at a pressure of 3200 p.s.i.g. is performed, prior to coking in an inert atmosphere. The product has a specific density of 1À1 and a flexure strength of about 4000 p.s.i.g. In modifications, the binder may be dissolved or dispersed in steam, CCl 4  or benzene, and curing, if performed, is at from 350‹ F. to 700‹ F. Volatiles given off during coking may be condensed and distilled to yield a pitch which may be used in the binder in amounts ranging from 10 to 40% by weight. The process is applicable to coals of high and/or low rank, e.g. weakly coking or non-coking coals having a fixed carbon content below 80%.
Patent GB-1374773-A (GB)
Title: Linear actuators
IPC: G11B5/54
Filed: 1971-08-25
Abstract: 1374773 Fluid bearings INTERNATIONAL COMPUTERS Ltd 25 Aug 1972 [25 Aug 1971] 39868/71 Heading F2A [Also in Division H2] The moving member of a linear actuator is supported relative to the stationary member by a fluid bearing. A hollow, axially-movable shaft 1 carries a support 3 for a coil 4 which moves adjacent a polepiece 9 of a stationary magnet 8. The shaft floats in two cylindrical air bearings 2 each having an annular groove 13, to which air is supplied (11, 12), and apertures 14 through which the air is conveyed to the shaft/bearing interface. The support 3 is guided by thrust pads 10 co-operating with a rail 6, each pad including (Fig. 4b), a ring of apertures 16 through which air is supplied to the pad/rail interface, and a central aperture 17 through which the air is exhausted via a hollow pivoted tube (20, Fig. 4a, not shown). The apertures 14, 16 are formed by brass or jewel watchmakers' bearings. The actuator is used to position a magnetic recording head.
Patent GB-1267283-A (GB)
Title: Variable speed film movement mechanism
Inventor: NUPNAU ARTHUR EWARD
IPC: G03B19/18
Filed: 1970-08-20
Abstract: 1,267,283. Film transport mechanisms. BELL & HOWELL CO. Aug.20, 1970 [Oct.6, 1969], No.40124/70. Heading G2E. A cine projector has an intermittent film feed mechanism comprising shaft 28 driven at a constant speed, shuttle 30 with film-engaging teeth 48, up-and-down cam 38 and in-and-out cam 58 mounted on shaft 28 and co-acting with the shuttle, first and second control cams 90, 94 rotating at first and second speeds slower than shaft 28, actuator means 96 bearing a shuttle restraining ball 114 and co-acting with cam 90 or 94, a shiftable plate 82, and selector means 60 movable from a normal framing speed position to first and second low speed positions in which plate 82 is displaced so as to de-activate the cam 58 and cause shuttle restraining ball 114 to control in-andout movement of the shuttle in response to control cams 90 or 94. Actuator 96 is axially displaced along shaft 105 in response to cam 90 in one position, and in response to cam 94 through follower 150, pivoting arm 154 and push-rod 180 in the other position.