baber/WOPTO huggingface dataset:
Patent GB-1434688-A (GB)
Title: Pressure control arrangement
IPC: G05D16/10
Filed: 1974-06-27
Abstract: 1434688 Control of fluid-pressure  ANDERSON GREENWOOD & CO 27 June 1974 [23 Oct 1973] 28560/74 Heading G3P  A pressure control arrangement for a fluid system 10 comprises a shut-down valve 12 having a pressure-responsive actuator 14, a pressureresponsive pilot valve 16, a line 22 connecting valve 16 to the fluid system 10 to be controlled, valve 16 being pre-set to sense and respond to a pre-selected pressure condition at which it is desired to shut down system 10, an activator 18 connected to valve 16 and adapted to operate a control valve 20 which is connected to actuator 14, whereby when valve 16 senses and responds to the pre-selected pressure condition, activator 18 moves valve 20 to cause the shut-off valve to be actuated. Valve 16 is a double pilot valve, each of closures 28, 30, controlling flow through an inlet and an exhaust seat, closure 28 being set by a knob 32 to exhaust when the system pressure exceeds a predetermined maximum and closure 30 being set by a knob 34 to exhaust when the pressure falls below a predetermined minimum. An over-ride piston (80) Fig. 5 (not shown) provides a lock for piston 60 of valve 18, and a manual setting button 76 is provided for valve 20. In operation, button 76 is depressed so as to set valve 20 in open position, wherein fluid is supplied through line 24 to actuator 14 so as to hold valve 12 open, over-ride  piston (80) locks piston 60 and pressure from line 10 to valve 16 causes pressure to be supplied through line 36, to port 38, and through lines 40, 46 to each side of piston 60, which is therefore urged upwardly against over-ride piston 80. When the pressure exceeds the low pressure setting, valve closure 30 opens to exhaust from port 50. When the pressure falls below the predetermined minimum, closure 30 closes the exhaust seat and opens. the inlet seat to deliver pressure fluid through port 48 line 46 and port 50, and piston 60 moves upwardly and causes valve 20 to vent actuator 14 and thus close valve 12. When the pressure is in excess of the required maximum, closure 28 closes its inlet seat and opens its exhaust seat so that pressure fluid is exhausted through line 40 and the pressure through port 38 moves piston 60 upwardly and causes valve 20 to vent actuator 14 and close valve 12. This arrangement provides an automatic reset feature. However, Fig. 2 (not shown) provides a manual reset only, by depressing button 76 and this is done by connecting line 46 with port 38, and line 36 into chamber 58 of activator 18. In a modification, the arrangement provides for shut-down responsible only to pressures falling below a pre-selected minimum Fig. 3 (not shown). This arrangement may provide for automatic or manual reset.
Patent GB-721996-A (GB)
Title: Improvements in or relating to the utilisation of zinc ash
IPC: C23C2/06
Filed: 1953-06-29
Abstract: A galvanizing bath having part of its surface exposed to the air has the other part of the surface covered by a molten layer containing one or more fluorides or one or more chlorides of alkali metals or a mixture of such compounds, into which the zinc ash formed on the exposed surface is passed, whereupon the metallic zinc content of the ash returns to the bath, the oxides in the ash being retained in the molten layer.  The molten layer may comprise aluminium fluoride, sodium fluoride or cryolite and sodium-aluminium chloride or sodium chloride.  The bath may be a plain zinc bath or a zinc-lead bath.
Patent GB-915317-A (GB)
Title: An improved self-locking nut
Inventor: BINKS JOHN ALFRED
IPC: F16B39/286
Filed: 1960-08-18
Abstract: 915,317. Locking-nuts. BROWN BROS. (AIRCRAFT) Ltd. Aug. 15, 1961 [Aug. 18, 1960; June 5, 1961], Nos. 28721/60 and 20274/61. Class 89 (1). By cutting two slots 11 in the end of a metal or synthetic resin nut, outwardly from the middle in opposite directions, two springy leaves 13 are produced and these are bent down so that their threaded portions are of a smaller diameter than that of the remaining main thread. Material may be removed from the end of the nut so that the tops of the leaves are parallel to their corresponding slot faces, Fig. 1 (not shown), or non-parallel chamfers may be provided.
Patent GB-1536637-A (GB)
Title: Luminescent materials
IPC: C09K11/08
Filed: 1977-07-08
Abstract: 1536637 Luminescent materials PHILIPS GLOEILAMPENFABRIEKEN NV 8 July 1977 [13 July 1976] 28748/77 Heading C4S A luminescent rare earth borate sensitive to U.V., X-rays and electrons, has the formula La 1-x-y-z Gd x A<SP>1</SP> y A<SP>11</SP> z B 3 O 6 , wherein A<SP>1</SP> is Bi and/or Ce, A<SP>11</SP> is Tb and/or Dy, x+y+z # 1, 0 # x # 0À999, 0À001 # y # 0À8 and 0 # z # 0À6. Specific examples are given including Ce 0À65 - Tb 0À35 B 3 O 6  and Gd 0À97 Bi 0À02 Dy 0À01 B 3 O 6 . The borates are prepared by heating the corresponding oxides or carbonates with boric acid in air, nitrogen or N 2 +H 2 .
Patent GB-919652-A (GB)
Title: Armature-winding machine with device for winding a plurality of armatures simultaneously
IPC: H02K15/09
Filed: 1960-08-19
Abstract: 919,652. Armature winding machines. MICAFIL A.G. Aug. 19, 1960 [Aug. 19, 1959], No. 28785/60. Class 35. An armature winding machine for winding two armatures together comprises a main drive member 1 (Figs. 1 and 2) carrying an armature 12 and, coaxially arranged therewith, an intermediate member 3 slidably carried in rotating bearing block 5 and carrying a guide 2 for armature 12 and a holder for a second armature 13, a rotatable guide member 7 for armature 13 being carried by a sleeve 9 in a tail stock 10, sleeve 9 and member 3 being biased by spring 11 to press guides 7 and 2 against the armatures and means being provided to move them against spring 11 by a small amount sufficient to permit the armatures to be turned and by a large amount to permit replacement of the armatures. The guide members 2, 7 which hold the armatures in place overlap very slightly the slot apertures to be wound and the drive members 1, 3 have bracing levers 14 (Fig. 2, not shown) carrying hooks 15, 16, the wire being looped on the hooks after the coils have been wound and being subsequently cut and the ends soldered to commutator segments. The armatures are held against turning axially in their holders by ball detents 41, 42 (Fig. 3) and when they are released slightly by moving members 3, 9 a little against spring 11, they can be turned one slot by depressing the push-buttons 43a, 43b. To free the armatures for turning, latching lever 28 (Fig. 4) is lifted and cranked, lever 24 is moved into position 24b, moving sleeve 9 and guide 7 slightly against spring 11 and permitting spring 25 (Fig. 1) to move bearing block 5 a smaller amount determined by a leaf-spring 35 (Fig. 2, not shown) which acts as a stop. To obtain the large movements enabling the armatures to be inserted or removed the leaf-spring 35 is lifted so that it no longer acts as a stop and lever 24 is moved to position 24a.
Patent GB-1110285-A (GB)
Title: Bale loading implement
IPC: A01D87/12
Filed: 1965-07-07
Abstract: 1,110,285. Bale-lifting tractor attachments. O. WELGER, and H. NESTLER, [trading as GEBRœDER WELGER]. 7 July, 1965 [13 July, 1964], No. 28826/65. Heading B8H. A boom, which is provided at its outer end with a bale-supporting fork 17 and which is pivoted at 7 to a bracket 4 supported by the tractor lift links, is luffed by an hydraulic ram 9 to the broken-line position in which it engages a rubber stop 8, thereby throwing a bale 19 into a trailer 2 drawn by the tractor. The pivots 7, 10, 11 are arranged such that the torque applied to the boom diminishes substantially to zero as the boom swings from the full-line position to the broken-line position. The fork 17 comprises a straight middle tine 15, Fig. 2 (not shown), provided with sawtooth serrations 18 adapted to retain the bale on the fork during initial luffing of the boom, and two side tines 16 having outwardly and upwardly curving ends. A safety coupling 20 permits the fork to detach itself on engaging an obstruction and a joint and lock 21 allows the fork to be pivoted to a vertical position for transport.
Patent GB-911941-A (GB)
Title: Improvements in explosive actuated tools for driving studs or other fasteners
IPC: B25C1/14
Filed: 1961-08-10
Abstract: 911,941. Cartridge-operated fastener driving tools. OLIN MATHIESON CHEMICAL CORPORATION. Aug. 10, 1961 [Aug. 11, 1960], No. 28966/61. Class 119. The subject-matter of this Specification is substantially the same as that of Specification 29650/61, but the claims are directed to the arrangement of the cage 5, Fig. 1, spring-pressed rollers 7 and inclined surface 12 of the bearing member 4 for gripping the shank of the striker member 2 to prevent accidental firing and to the arrangement of the release balls 16. In addition, the rollers 7 are defined as having the shape shown in Fig. 3 to provide in each a central concave surface 13 making linear contact with the curved surface of the shank of the striker member and two end convex surfaces 14 which make linear contact with the internal inclined curved surface 12 of the bearing member 4.
Patent GB-738132-A (GB)
Title: Improvements in or relating to track apparatus for railway traffic control systems
IPC: B61L1/08
Filed: 1953-10-20
Abstract: 738,132. Railway track apparatus. SIEMENS & HALSKE AKT.-GES. Oct. 20, 1953 [Oct. 20, 1952], No. 28972/53. Class 105. A magnetically-operated railway track apparatus such as contacts of an axle counter or magnetically-controlled chokes, has main and auxiliary magnets acting in opposition on a receiver so arranged in the path of the wheel flanges that the passing of a flange varies the relative intensities of the fluxes through the receiver as to reverse the resultant flux. The main and auxiliary magnets may, as regards the receiver, be in series or parallel relationship and the fluxes through the receiver may be varied in the same sense to different extents or in opposite senses. As shown in Fig. 3 the magnetic circuits through the receiver 4 of the main magnets 5, 6 and of the auxiliary magnets 9, 10 are in parallel and on the passing of a wheel flange the main flux is increased to a greater extent than the auxiliary flux. With the magnets 9, 10 and the polepieces 7, 8 and gap 11 interchanged, with gaps between the polepieces and the elements 2 of the receiver, Fig. 4 (not shown), the variations of the fluxes through the receiver are in opposite senses, there being an increase in main magnet flux and decrease in auxiliary magnet flux. In Figs. 1 and 2 (not shown) to eliminate the effect due to lateral variation of wheel movement one of the magnets is adjacent the rail and the other laterally disposed from the rail with the magnetic circuits in parallel through the receiver, the fluxes being deviated from the receiver to different extents by a passing wheel flange.
Patent GB-690510-A (GB)
Title: Improvements in and relating to dough dividers
Inventor: POINTON JOHN EDWARD
IPC: A21C5/02
Filed: 1950-11-28
Abstract: 690,510. Dough dividers. .BAKER PERKINS, Ltd. Nov. 21, 1951 [Nov. 28, 1950], No. 29114/50. Class 87 (ii) [Also in Group XXXII] Relates to dough dividers wherein a reciprocating ram charges dough supplied from a hopper into measuring pockets of a displaceable division head, and consists in the interposition of a hydraulic device, e.g. a dashpot, between the ram and its power actuator, whereby the ram pressure is uniform on the charging stroke and the rate of resetting to the recharging position is controlled. The invention is applied to a divider as described in Specification 435,166 which comprises a hopper A, a cut-off knife B and a ram C for charging dough into measuring pockets D and in which the movements of the ram and knife are derived from cams G, H through levers E, F respectively. The ram C is connected to the lever E through a connecting rod 10 and a bell-crank 8 pivoted to the lever E, and to the other arm 20 of this bell-crank the end of the dashpot pistonrod 19 is connected. A lug 4 on the bottom of the dashpot cylinder 2 is pivoted between lugs 6 at the bottom of the lever E. As the ram moves forward and discharges dough into the measuring pockets the resistance of the dough causes the bell-crank 8 to set back and move the piston-rod 19 downwards, at the same time compressing a spring 22, and the dashpot is so adjusted that the pressure acting upon the dough is uniform. On the return stroke of the ram the spring 22 restores the bell-crank 8 to its initial position, the restoration being controlled by the dashpot. At one side of the cylinder 2 of the dashpot is a reservoir chamber 16 communicating with the cylinder 2 through a passage 11. As the piston 3 enters the cylinder 2 it forces liquid from the cylinder into the reservoir 16 through the passage 11 and through a spring-loaded valve 12, the compression of the spring 14 of which is adjustable to give the required uniform pressure on the dough. On the outward stroke of the piston the liquid returns to the cylinder 2 through a non- return valve 13, the opening area of which may be adjusted.
Patent GB-336267-A (GB)
Title: Improvements in television and like systems
IPC: H04N7/169
Filed: 1929-07-09
Abstract: 336,267. Electrical Research Products, Inc., (Assignees of Nyquist, H.). July 13, 1928, [Convention date], Divided on 315,417. Drawings to Specification. Television.-The drawings and the description with reference thereto are identical with those of Specification. 315,417. The invention claimed comprises a scanning-disc having apertures non- sequentially arranged.
Patent GB-809601-A (GB)
Title: A system and method for recording and controlling the operation of a machine
IPC: B23Q35/128
Filed: 1955-10-13
Abstract: 809,601. Copy-milling. KEARNEY & TRECKER CORPORATION. Oct. 13, 1955 [Oct. 20, 1954], No. 29197/55. Class 83 (3). [Also in Groups XXXVIII and XL (b)] A method of establishing a record of the operation of a machine member 19 consists in producing a signal voltage as a function of the velocity of the member, producing a signalvoltage as a function of the position of said member, and recording said velocity-signal voltage and said position-signal voltage to establish a record of the velocity and position of said member at any instant in the operation. The velocity-signal voltages control the movement of the member, the position-signal voltage coming into operation only if, due to excess loads on the member, a position-error occurs. In a milling-machine, the work-table 19 is moved in East-West directions by a reversible motor 29 driving through wormgearing, and similarly a motor 28 moves a supporting slide 18 in South-North direction on a knee 16. A male-pattern 58 to produce female-work 60 is scanned optically, or alternatively by a tracer, to move the table beneath a vertically-adjustable cutter 22. As the table 19 moves, a transparent pattern-support 40 secured to the table moves the pattern 58 relatively to a scanning device 42 co-operating with a light-source directed downwardly from an arm 43. The light passes through a D- shaped aperture 54, eccentrically disposed on a head 50 rotated at a constant speed of 3,600 r.p.m. by a motor 53. The light-pulses control the motors 28, 29 so that the edge of the pattern is retained a fixed normal distance from the axis of the head 50 (see Group XL (b)). To bring the pattern initially into position beneath the aperture, a manual lever is provided to actuate switches to cause movement of the table in the required direction.
Patent GB-405410-A (GB)
Title: Improvements in or relating to slidable windows
IPC: B60J10/04
Filed: 1932-10-19
Abstract: 405,410. Ships' windows; frames; draught - excluders. BENNETT, C. P., 12A, Alton Road, Tue Brook, and GRAFF, J., 27, Queen's Drive, both in Liverpool. Oct. 19, 1932, No. 29217. [Class 20 (iii).] A sliding sash, such as a ship's window, which is adapted to engage joint-making packing d when closed is provided with spaced spring-pressed balls f to reduce friction and to prevent damage to the packing. In the closed position, the sash is pressed by the wedges m against the packing. The balls are mounted in housings in the sash with restricted opening g<2>, as shown in Fig. 4, and engage the frame or vice versa.
Patent GB-665583-A (GB)
Title: Manufacture of carbon black
IPC: C09C1/52
Filed: 1949-11-15
Abstract: Carbon black is manufactured by supplying a liquid carbonaceous combustible material, e.g. mineral, vegetable, or water oils such as petroleum or engine sump oil, to an atomizing burner and burning it in a restricted supply of air, and causing the burning tip of the flame to impinge upon a carbon depositing surface maintained at 300-400 DEG F.  The depositing surface may be stationary with a mechanical scraper or a rotating cylinder with a fixed scraper and should be hollow for the passage of water, steam, or air to maintain the temperature.  The burner may be a jet burner, a medium pressure air atomizing burner, or a rotary burner.
Patent GB-510346-A (GB)
Title: Improvements in apparatus for regulating the consistency or viscosity of a liquid material
IPC: D21F1/08
Filed: 1937-10-26
Abstract: 510,346. Viscosimeters. CARLSTEDT, R. Oct. 26, 1937, No. 29251. Void. Convention date, Oct. 28, 1936. [Class 106 (ii)] [Also in .Group XXXV] A rotatable body (not shown), immersed in liquid, is driven through planetary gear 8, 9, mounted upon a member 18. This member is carried by a ball bearing 17 on shaft 11 which drives the body, or upon the shaft 6 of the, driving motor, and the viscosity of the liquid may be indicated by an index carried by the member 18 and co-operating with a scale or with a disc 43 having a mark 44 secured through a glazed aperture in the casing. Adjustment means comprise a spring 29, nut 33 and weight 40. Another adjustable weight may replace the spring 29.
Patent GB-1027839-A (GB)
Title: Improvements in change speed gearing for vehicles
Inventor: TWEMLOW EDWIN
IPC: F16H3/16
Filed: 1962-07-31
Abstract: 1,027,839. Change-speed gear. FODENS Ltd. July 30, 1963 [July 31, 1962], No. 29325/62. Heading F2D. A change-speed gear for a motor lorry comprises an input shaft a driving through a meshing gear pair e, f to a first countershaft b carrying fast gears h, j, m and a sliding mesh gear o which, as shown, meshes a gear n fast on a mainshaft 3 connectible by a positive clutch sleeve d to an output shaft 4 to establish the second of seven forward ratios, sliding the gear o rightwards out of mesh with the gear n enabling three step-down ratios and direct drive to be established by selectively sliding positive clutch sleeves c, 2 left and right from the positions shown, reverse being established by sliding the gear o into mesh with a gear p integral with a gear q meshing the gear n, the double gear p, q rotating about a second countershaft y. To establish first, the lowest forward ratio, the gear o is slidden to its mid-position where it meshes neither of the gears n, p directly but instead meshes a sliding mesh gear r on a third countershaft x, the gear r itself being simultaneously slidden rightwardly into mesh with the gear p. Drive from the first countershaft b is then transmitted through the train o, r, p, q, n, d to the output shaft 4. The seventh (overdrive) ratio is established by sliding the clutch sleeve d rightwardly, so that the first countershaft b drives through meshing gears s, t to the output shaft 4.
Patent GB-645604-A (GB)
Title: Improvements in or relating to bee escapes
IPC: A01K47/06
Filed: 1948-11-11
Abstract: 645,604. Bee-keepers' appliances. CROWTHER, H. Nov. 11, 1948, No. 29343. [Class 5(ii)] A bee-escape consists of a plate 1 with openings 2; projecting across and beneath each opening are resilient strips 11. The openings 2, preferably rectangular, are formed by cutting the plate along three sides of a rectangle, the cutaway portions being bent up at an angle of 20 degrees to cover the opening. A U-shaped piece 8 with a central opening is removably secured beneath the plate 1.
Patent GB-1307877-A (GB)
Title: Method of and device for controlling optical conversion in semi conductor
IPC: H01L31/00
Filed: 1970-06-17
Abstract: 1307877 Semi-conductor devices SEMICONDUCTOR RESEARCH FOUNDATION 17 June 1970 [18 June 1969] 29377/70 Heading H1K [Also in Division H4] A semi-conductor optical conversion control arrangement comprises a semi-conductor device whose body is doped with a deep-level impurity and has a depletion layer, means being provided to vary the charge of the deep-level impurity in the depletion layer. The device may be an N+P type or P+N type silicon diode doped with gold as deep-level impurity, or a gallium arsenide diode doped with manganese or molybdenum, or a gallium phosphide diode doped with manganese or iron. The charge of the deep level impurity in the depletion layer may be changed by directing light to this layer or injecting an electric current into it. The arrangement may be used to produce current in response to light or for varying light transmitted through it.
Patent GB-795099-A (GB)
Title: Method and apparatus for expansion of unbonded areas in composite plates
Inventor: THOMAS JESSE BASHAM
IPC: B21C37/14
Filed: 1956-09-26
Abstract: 795,099. Making heat exchangers; stamping. REYNOLDS METALS CO. Sept. 26,1956, No. 29436/56. Classes 83 (2) and 83 (4). A method of expanding a partially laminated sheet unilaterally includes the steps of confining one side of said sheet against a surface by applying superatmospheric holding fluid pressure against the other side of said sheet and applying an expansion fluid pressure to the interior laminated portion of said sheet sufficient to deform the laminated portion outwardly on said other side of said sheet. A press for carrying out the expansion comprises a lower stationary platen 40 provided with a fluid reservoir 41 supplied from a conduit 42. A recess 46 in the lower platen receives the resist extension 21 of the sheet 20. The reservoir is sealed against the sheet 20 by a ring 47. A porous die face member 44 of sintered metal forms the floor of the reservoir. A pump 50 supplies pressure fluid via a check valve 80 to the reservoir 41. Relief valves 52 and 81 control the clamping pressure and the effect of the fluid discharge respectively. An upper movable platen 60 is provided with a bored projection 59 (Fig. 6) for puncturing the resist extension 21 of the sheet. Alternatively, if the extension has already been opened, the platen need only have a bore 63 surrounded by a sealing-ring 62. The bore 63 or the extension 59 is connected to a fluid-pressure pump 65 via a check valve 68. Relief and discharge valves 69 and 72 are also provided. In operation, after clamping the sheet between the platens, pump 50 is operated to anchor the sheet against the upper platen, the holding pressure being between 600 to 3600 p.s.i. Pump 65 is now operated to expand the sheet, the relief valve being set to provide a pressure 500 to 3600 p.s.i. greater than the holding pressure. The expanded portions 92 (Fig. 11) are provided with a flat outer surface where they contact the die face member 44 and the porous nature of this member prevents any of the holding fluid from being trapped in the pressurewelded areas of the sheet. Valves 72 and 81 are opened manually or automatically to release the pressures and allow the expanded article to be removed from the platens.