baber/WOPTO huggingface dataset:
Patent GB-864651-A (GB)
Title: Hypodermic or like needle sharpening apparatus
IPC: B24B19/16
Filed: 1959-10-28
Abstract: 864,651. Grinding hypodermic needles. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. Oct. 28, 1959 [Oct. 30, 1958], No. 36604/59. Class 60. An apparatus for sharpening hypodermic or like needles 31 includes a rotary lap 10, a block 15 supported on the lap surface having an associated abutment edge 32 substantially parallel to a generator of the lap surface, the lap and edge receiving between them a needle end, the bevelled surface of which contacts the lap whilst the outer surface of the needle adjacent the point, contacts the edge 32, and a guide plate 24 having slots 25 to guide the needle in relation to the lap so that the bevel produced by contact with the lap has substantially the required angle with the needle axis. The block 15 is spaced from the lap surface by tungsten carbide underflats 18, one at each end, and is resiliently supported by a carrier block 13 which is itself slidably mounted on a fixed guide bar 12 supported at its ends on posts 12A. A connecting rod 26 attached at one end to a rotatable disc 29 and at the other end to the carrier 13 causes reciprocation of the latter on the slide bar 12. The abutment edge 32 is provided by a lower edge of a bar 19 adjustably secured tothe face of the block 15. The lap 10 is rotated by conventional means and is so supported by a table 30 that its face makes an angle to the vertical approximately equal to the required angle of bevel of the needle which is disposed vertically in a comb slot 25 with the plane to be lapped bearing against the face of the lap ; the slots 25 may be replaced by elongated holes in the plate 19. The lap may be of relatively soft material, e.g. cast iron or bronze, and is provided with shallow radial surface grooves 39. A rod 40 conveys along its surface a suspension of abrasive powder in liquid to a print adjacent the lap surface, surplus abrasive falling into an annular space between the edge of the lap and a surrounding wall 11 whence it is drained by a pipe 41. A pressing plate 33 is secured to an arm 34 and is engaged at its inner end by an extension of the driving shaft of the lap 10; this extension is formed slightly off-centre of the driving shaft and thus effects an oscillatory movement of the plate 33 whereby the abrasive matter is distributed and pressed into the surface of the lap. In a modification, the block and guide means may be used to position vertically one or more needles at the required angle to the surface of a cylindrical lap to provide cylindrical bevel surfaces; such a lap may have a circular end lap surface with suitably arranged guide means, of the kind above described.
Patent GB-1134125-A (GB)
Title: Improvements in or relating to apparatus for the distribution or application of liquid weed killers
IPC: A01M7/00
Filed: 1966-08-18
Abstract: 1,134,125. Distributing liquid weed killers. H. R. MAWDSLEY. 9 Nov., 1967 [18 Aug., 1966], No. 36949/66. Heading AID. Apparatus for the selective distribution of weed killers comprises spray bars 12 which are shrouded by freely rotatable guard members 15 mounted on vertical tubes 11, the guard members being maintained in abutting relationship by a spring 16 which allows the guard members 15 to be deflected laterally by the passage of a plant between them. The tubes 11 are connected to a reservoir 10 which is pressurized to eject weed-killer through the holes of the spray bars 12 at a slow rate.
Patent GB-1475537-A (GB)
Title: Frame grabbing system
IPC: H04N5/91
Filed: 1974-08-22
Abstract: 1475537 Cathode-ray tube displays IDR Inc 22 Aug 1974 [17 Jan 1974] 36989/74 Heading H4T The invention is concerned with a "frame grabbing" system in which each of a plurality of terminal stations may, in real time, select for continuous display a particular frame of a plurality of frames of different continuouslytransmitted video information. Fig. 1, shows the general arrangement in which a number of external information sources 22, 24 provide information such as stock-market prices, weather information, news, &c., in digital form to a computer 30 having an associated mass memory 32. The computer formats the data, such as by adding line and page information (page = one video frame) and by packing of the characters, and stores the formatted data in the mass memory. The corresponding video signals which are produced by video generator 34 are updated in real time, and after the addition of coding signals in 36 the video signals corresponding to the information produced by the different sources 22, 24 are transmitted by means of respective modulators 40 over respective channels of a CATV system. The coding consists of including, in selected frames, a "burst" of video energy on the seventeenth horizontal scan line following a vertical synchronizing pulse and this pulse is employed at the terminal stations as a frame (page) synchronizing signal. A selected frame, the frame number of which, in a repeating cyclic transmission of information frames, is set-up by a keyboard is "grabbed" when the correspondingly numbered frame is received and is stored in the local memory 64 for continuous display. When the frame is updated a further "burst" of video energy is transmitted on the sixteenth line following a vertical synchronizing pulse and reception of this, which is now employed as a new frame (page) synchronizing signal, causes the new (updated) information to be stored in the local memory for continuous display. Details of the various elements are described with reference to functional and logic block diagrams Figs. 2-9 (not shown).
Patent GB-1520524-A (GB)
Title: Vehicle mirrors
IPC: B60R1/076
Filed: 1976-07-28
Abstract: 1520524 Rear-view mirrors RAYDYOT Ltd 28 July 1976 [9 Sept 1975] 36993/75 Heading B7J A vehicle mirror comprises a stem 12 carrying a mirror head 16 through the agency of a ball joint, a hollow base 10 securable to a vehicle part, e.g. a wing or door, and a spring 14 which serves to resiliently hold the stem 12 and the base 10 in interfitting relationship. The invention is characterized in that the spring 14 is a tension spring which is coupled to the stem by a frangible apertured lug 24 integral with the stem and passing through an opening 20 in the base 10 and loosely through a slot in a washer 28 which prevents withdrawal of the lug in response to normal fulcrumming of the stem on the base, but a large deflection of the stem to cause a hook 30, of the spring, connected to the lug to abut the slotted washer such that when the lug is subjected to a predetermined tensile loading it will break thus allowing separation of the stem 12 from the base 10.
Patent GB-318446-A (GB)
Title: Improvements in and connected with web-delivery mechanism for printing presses
IPC: B41F13/02
Filed: 1928-12-14
Abstract: 318,446. Marks, Sir G. C., (Harris- Seybold Potter Co.). Dec. 14, 1928. Tripping-arrangements .-The printed web is fed from a rotary press, such as the lithographic multicolour offset press shown in Fig. 12, by means of feed-rollers 27, 32, Fig. 1, driven from the cutting-rollers at the same speed as the printing cylinders, and the rollers 32 can be moved away from the driven roller 27 so as to trip this normal web delivery means, and simultaneously the web is brought under the control of other rollers 74, 84 driven at a slower speed. The tripping of the rollers 32 and bringing into action of the rollers 74, 84 is controlled by the trip mechanism which operates the eccentric bearings of the printing and offset cylinders of the printing- units A, B, C, Fig. 12, a rod 127, Fig. 1, being lowered simultaneously with the operation of the mechanism for tripping the cylinders. The rod 127 is connected to an arm 60 journaled on a shaft 36 to which is fixed an arm 49 provided with a spring-pin adapted to be received in an aperture 57 in the arm 60, as shown in Fig. 1, or to be received in an aperture 58 when it is desired to keep the rollers 32 out of action altogether. The rollers 32 are mounted in rock-levers 34 journaled on the shaft 36, and a yielding adjustable lost motion connection is provided between brackets 37 fixed to the shaft 36 and the upper end 41 of the levers 34. This connection comprises a screw 43 passing through an aperture in the end 41 and screwing into an aperture in the bracket 37, and a spring 45 on the screw. The arm 60 is connected by a link 126 to an arm 114 journaled on a shaft 88, and a fixed arm 103 can be secured by a spring-pin to either of two apertures 111, 112 in the arm 114, according as it is desired to maintain the freely mounted rollers 84 permanently out of contact with the roller 74, or to permit them to contact therewith when the link 126 is lowered. The rollers 84 are mounted in lever arms 86 freely mounted on the shaft 88 and having an adjustable connection with brackets 91 fixed to the shaft. The rollers 84 can thus be caused to contact with the roller 74 at the same time as the rollers move out of contact with the roller 27. The roller 74 is freely mounted on its shaft 73, which is constantly driven at a speed less than the normal speed of the web by the worm and bevel gearing from the shaft of the roller 27. As the rollers 84 are lowered into contact with the roller 74, a clutch on the shaft 73 is moved axially by means of a link 124 and bell-crank lever 120, so as to cause the roller 74 to be driven at the low speed of the shaft 73. The web is thus advanced at a low speed while the cylinders are tripped, and on restarting the press it is not necessary to re-thread the web, whilst waste of paper is kept down owing to the slow speed of the web.
Patent GB-429891-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H01H67/12
Filed: 1934-01-04
Abstract: 429,891. Automatic exchange switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and COLLYER, J. E., c /o General Electric Co., Stoke, Coventry. Jan. 4, 1934, No. 37029. Divided out of 429,848. [Class 40 (iv)] A panel switch assembly comprises a flat bank, a number of wiper assemblies for engagement with the bank, reversible driving mechanism individual to the bank, and a combined clutch and locking device individual to each wiper assembly for coupling it to the drive and locking it when set. The assembly may be used for a group of common controlled call finders, group selectors or connectors and circuit arrangements for these purposes are described in Specification 429,848. The panel 49 comprises a number of horizontal conducting strips separated by insulating strips and having projections shown in Fig. 3 for engagement by the wipers, the ends of the strips having tags 48 for connections to the cabling. The panel is held between top and bottom channels 51, 50 on a frame 30 and wiper assemblies may be arranged on both sides of it. The panel may comprise horizontal locating members engaging slots in the side of the frame. Each set of wipers 35 is mounted on a carriage 34 slidable on a pillar 32 or between a pair of pillars 61, 62 and is raised and lowered by a channel section rod 33 adapted to be pressed against a roller 37 carried by a shaft driven by motor 44 which may be reversible or have reversing gear associated with it. The clutch and locking mechanism comprises an armature, spring controlled at 43 and pivoted at 39 so that when magnet 41 is de-energized, catch 38 enters one of a series of slots in bar 33, but when the magnet is energized, roller 40 presses the rod against the drive roller 37. In the case of finders, those on one side of the panel drive up and those on the other down, to reduce finding time. The auxiliary apparatus such as distributer switches, registers and relays may be mounted above or below the panel. Each rod 33 may carry two brush carriages co-operating with two co-planar panels to give increased capacity and separate motors may be used for the two sides of the panel. The flexible leads of the wipers may be taken to a terminal strip at the bottom of the panel or on the clutch mounting 42.
Patent GB-1177719-A (GB)
Title: Preparation of Ferrites
IPC: C04B35/26
Filed: 1968-08-02
Abstract: 1,177,719. Magnetic compositions. AMPEX CORP. 2 Aug., 1968 [23 Aug., 1967], No. 37066/68. Heading H1H. A ferrite containing Li and Mn is prepared by grinding in aqueous medium, a mixture of Li 2 MnO 3  and an iron compound, drying, and firing the mixture. Ammonium acetate may be added to the water in the mill. The ferrite may have the general formula where O #x < 1, (1-x)/2y # 2, and M is Co, Ni, Mn, Cu, Hg, Zn, Cd or mixtures thereof. Exemplified ferrites are: Li 0 . 5 Mn 0 . 5 Fe 2 O 4  Li 0 . 5 Mn 0 . 25 Fe 2 . 55 O 4  Li 0 . 5 <SP>Mn</SP> 0 . 3 <SP>F</SP>e 2 . 2 O 4  Li 0 . 45 Ni 0 . 1 Mn 0 . 3 Fe 2 . 15 O 4  Li 0 . 425 Ni 0 . 1 Zn 0 . 05 Mn 0 . 3 Fe 2 . 125 O 4  Li 0 . 4 Ni 0 . 1 Zn 0 . 1 Mn 0 . 3 Fe 2 . 1 O 4  Li 0 . 4 Mn 0 . 2 M 0 . 2 Fe 2 . 2 O 4  Li 0 . 1 Mn 0 . 05 M 0 . 8 Fe 2 . 05 O 4  Li 0 . 01 Mn 0  . 005 M 0 .  98 Fei .00504 Li 0 . 01 Mn 0 . 2 M 0 . 98 Fe 1 . 81 0 4  Li 0 . 01 Mn 0 . 4 M 0 . 98 Fe 1 . 61 O 4  The mixture may be fired at 1650 F., reground, dried, shaped and refined.
Patent GB-625702-A (GB)
Title: Improvements in or relating to circular looms
IPC: D03D37/00
Filed: 1946-12-16
Abstract: 625,702. Tensioning warps in looms. CHRISTIANSEN, C., and RUSCH, G. O. K. Dec. 16, 1946, No. 37074. Convention date, Dec. 14, 1945. [Class 142 (ii)] A warp tensioning device comprises one or more rollers 12, 13 over which the threads pass and which are held stationary when the shed is formed so that the threads slide over the roller or rollers and are thus tensioned. When the shed closes the roller or rollers rotate freely as the threads run backwards. In the construction shown the rollers are fitted with a ratchet device. Two rollers with the thread passing round them in S-form may be mounted on a common support pivotally mounted so that the rollers may be swung away from or towards the vertical to increase or decrease respectively the tensioning effect on the threads.
Patent GB-1073525-A (GB)
Title: Improvements in and relating to the curijng of vulcanisable sheet mateial
Inventor: BIDMEAD VICTOR JOHN
IPC: B29C35/02
Filed: 1963-09-20
Abstract: <PICT:1073525/C3/1> A method of curing calendered vulcanizable sheet material, e.g. rubber flooring, solid sheeting or sponge sheeting, comprises passing it around a rotary curing drum with a patterned surface and subjecting it to heat and pressure during such passage and feeding a matrix comprising a woven fabric having on at least one side thereof a layer of silicone rubber at a coating weight of less than 10 ounces per square yard with the sheet between the drum and the sheet to blank off the patterned surface of the drum and prevent the pattern from being embossed on to the sheet.  The fabric may be of a weave sufficiently coarse to emboss a weave pattern on the surface of the calendered sheet.  The matrix may comprise a cotton or rayon fabric of plain, twill, satin or other weave, coated with silicone rubber.  As shown, sheet rubber feed-stock 7 and matrix 10 is fed into contact with curing drum 1 which has a patterned surface, and are held against drum 1 by tensioned steel band 5 which passed around rollers 2, 3, 4.
Patent GB-1276021-A (GB)
Title: Anode for sodium chloride electrolysis
IPC: C25B11/03
Filed: 1969-07-24
Abstract: 1276021 Anodes for mercury cathode cells FARBENFABRIKEN BAYER A G 24 July 1969 [1 Aug 1968] 37240/69 Heading C7B An anode for NaCl electrolysis by the amalgam process comprises a surface in the form of a sieve, e.g. grid, grating, honeycomb or expanded metal sheet, opposite to the cathode, and an electrolyte resistance distributer plate for supplying current to the outer edges of the sieve. Preferably the total mesh surface area is greater than 50% of the total sieve surface area. The sieve may be made of Ti, platinized, Ti, Zr, Ta or graphite; the distributer plate may be the same composition or of Pt group metal, Ag, Au or Cu plated with Ti or Pt.
Patent GB-911657-A (GB)
Title: Improvements in making fine grained castings
IPC: B22D21/02
Filed: 1960-10-31
Abstract: Alloys for casting: ..1.2.3 .Chromium.25.5%.13.0%.18.5% .Nickel.10.5.Balance.Balance .Cobalt.Balance..18 .Carbon.0.5.. .Manganese..0.5.0.1 .Silicon..0.5.0.1 .Tungsten.7.5.. .Iron.2.0 max.1.5.1.0 .Molybdenum..4.25.4.0 .Titanium..0.75.3.0 .Columbium and... .Tantalum..2.0. .Copper...0.1  In an example turbine blades are cast from alloy 3 Specification 870,745 is referred to.
Patent GB-797938-A (GB)
Title: Altitude and speed responsive electric switch device
IPC: H01H35/24
Filed: 1956-12-11
Abstract: 797,938. Actuation of switches. AEROTEC CORPORATION. Dec. 11, 1956 [Jan. 20, 1956], No. 37829/56. Class 38 (5). An aircraft altitude and speed responsive switch device completes an indicating circuit when both altitude and speed are below predetermined values. A housing 10 is closed at its ends by walls 11, 12 having entries 13, 14 for atmospheric pressure and dynamic pressure due to speed respectively. A threaded ring 21 holds the wall 12, a diaphragm 20, a sealing ring 19, spacer 18 and plate 16 in the housing 10 so that an enclosure is formed between the wall 12 and diaphragm 20 and the plate 16 limits the diaphragm movement. The centre of the diaphragm 20 is coupled by a stud 25 to a flat beryllium spring 23 with its ends bolted at 24 to the wall 12. When the diaphragm is moved to the left by increased pressure a stem 27 also attached to the centre thereof opens switch contacts 33, 34. The wall 11 is threaded into. the housing 10 and carries a support member 38 for an evacuated bellows 35 with an internal stop member 42 and compression spring 40. When the atmospheric pressure in the housing falls the bellows expands under the spring action to move a rod 43 to open switch contacts 47, 48. The switches 33, 34 and 47, 48 are connected in series so that the indicator circuit is only complete when the speed and altitude are low. The setting of the diaphragm is adjusted by the nut 26 on the stud 25 and that of the bellows by screwing the wall 11 in and out of the housing, thus moving the rod 43 relative to the switchs 47, 48.
Patent GB-887025-A (GB)
Title: Improvements in pressure stabilising valves
Inventor: DALE AUGUST LEOPOLD VAN
IPC: G05D16/10
Filed: 1958-11-25
Abstract: 887,025. Valves. MARTONAIR N.V. Nov. 25, 1958, No. 37899/58. Class 135. A valve stabilizing a chamber pressure at an adjusted value comprises an inlet 2, a chamber outlet 3 and an inlet pressure balanced valve 9 connecting inlet and outlet when open and providing an end seating 16 for a relief valve 17 loaded by spring 22, valve 17 being subjected to outlet pressure via bore 18 in valve 17 and to a force via valve 9 and its closing spring 15 from an adjusting member 23, 5 which concentrically surrounds both valves, so that depression of member 23, 5 closes the relief valve 16, 17 and, after loading the adjustable relief valve spring 22, allows inlet valve 9 to open and establish the required outlet pressure. This pressure acts upon valve 17 via 18 to reclose the inlet valve and, should the outlet pressure rise above the required value, open the relief valve. The relief valve is provided with wedge-shaped outlet passages 19 whereby the cross-section of the passages increases proportionally to the opening of the relief valve.
Patent GB-339499-A (GB)
Title: Improvements in or relating to radio receiving systems
IPC: H04B7/08
Filed: 1929-12-11
Abstract: 339,499. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Beverage, H. H.). Dec. 11, 1928, [Convention date]. Fading, preventing; thermionic valve circuits.-The signals from a plurality of aerials, which are either geographically spaced or in different planes of polarization, and thus have different fading characteristics, are amplified, the gain being controlled so that the initial signal strength ratio is magnified, and then combined and translated. Signals from aerials 2, 4 pass to amplifiers 8, 10 and 14, 16 respectively and then to detectors 18, 20 and output stages 54, 56, the energy from which is combined, in an output transformer 66 feeding a loud-speaker 68. In the anode circuits of detector valves 18, 20 are arranged volume-control impedances 34, 36 and condensers 38, 40 for fixing the time-constant of the volume-control action. Leads from impedances 34, 36 convey biassing potentials to amplifiers 8, 16 and 10, 14 respectively and thus control each chain of amplifiers partially in accordance with its own signal-strength and partially according to the other signal-strength whereby the change-over from one signal to another is made more stable and less noticeable. In another modification (Fig. 2, not shown) three aerials each feeding a chain of three high-frequency amplifiers are shown and each volume-control detector adjusts the gain of its own amplifier and each of the other two. Modifications of the connections of the biassing leads from the volumecontrol impedances, are shown in further figures. Specifications 306,460 and 338,004 are referred to.
Patent GB-1381356-A (GB)
Title: Fluid circutis including piston and cylinder devices
IPC: F15B11/06
Filed: 1972-08-16
Abstract: 1381356 Fluid control circuits CHARLES TAYLOR (BIRMINGHAM) Ltd 2 July 1973 [16 Aug 1972] 38107/72 Heading F1P When the spool of a valve 16, Fig.1, is moved to the right a piston 10 is displaced by compressed air which passes from a line 18 through a line 13. When the spool is displaced to the left line 13 is isolated from line 18 which is connected to line 17 and lines 14, 19 are connected. Air flows through line 17 and a nozzle 22 thereby producing a pressure drop in a Venturi 21. This is communicated to the piston through lines 19, 14 and the piston is retracted. Fig.2 (not shown), illustrates a modified nozzle. Liquid may be used in the circuit rather than gas.
Patent GB-1475359-A (GB)
Title: Seat slide mechanism
IPC: B60N2/90
Filed: 1974-08-30
Abstract: 1475359 Seat slides T SAITO 30 Aug 1974 [14 Sept 1973] 38109/74 Heading A4J The side walls of a seat cushion frame are provided with internal flanges 4, each flange being profiled at 6 so as to form a complementary sliding track for a support rail 10. A reinforcing profiled member (32) Fig. 8 (not shown) may be secured to the flange 4 so as to complete a hollow profile through which the support rail slides. A bearing bush may be inserted between the profile and the rail. With an externally screwthreaded circular rail the provision of internal screwthreads in the bush allows adjustment of the seat position upon rotation of the support rail. Otherwise the seat position may be locked by a conventional latch. As shown in Fig. 9 the flanges 44 may be formed with a profile which alternates between upwardly bent portions 46 to pass above the rail, and downwardly bent portions 47 to pass below the rail. This embodiment may be reinforced and/ or bushed as above. The rails are preferably supported above a floor on end brackets. In one form, Fig. 6 (not shown), a rail with a triangular sliding section is provided with a flange for directly securing it to a floor.