baber/WOPTO huggingface dataset:
Patent GB-825737-A (GB)
Title: Improvements in or relating to swaging the teeth of saw blades
IPC: B21K11/00
Filed: 1957-12-05
Abstract: 825,737. Swaging saw teeth. KIVIMAA, E. Dec. 5, 1957 [Dec. 5, 1956 ; April 5, 1957], No. 37905/57. Class 145. Saw teeth are swaged to their final shape on sides and front in a single operation by rotating an eccentric swaging tool 3 across the face of a tooth supported at the back by an anvil 2, the width of the tooth being determined by limit stops 7 on the tool. The tool is mounted on a hollow rotatable shaft 14 and has several progressive working points 4, 5, 6 one or more of which are in the form of pins 6 projecting from the die to form a depression in the centre of the tooth face. The limit stops 7 are pinned to or integral with the die and their working surfaces 9 are normal to the die axis or inclined so as to give backward and downward clearance to the tooth. The anvil 2 is secured to a swaging head 15 by an adjusting bolt 17 and has a tongue 12 extending between the surfaces 9 and a guiding slot 13 with bevelled sides to accommodate varying widths of saw blade. A main driving shaft 23 driven by an electric motor carries a twoarm crank 24 which is joined by an adjustable connecting rod 28 having a stop 28a or by a chain or rope to a crank disc 16 to rotate the die through its working stroke and a rope in the slot 29 of the disc is connected to a spring to return the die to its initial position. The crank 24 also has a roller 47 engaging a cam slot 48, 49 cut in a pivoted disc 45 and the movement of the slotted end 46 of the disc is transmitted by a crank 41 and connecting rods 39 to an adjustable rod 36 for moving a carriage 33 to bring the teeth of a straight or circular saw into and out of swaging position. The mounting 43 for the pivot 42 of the crank 41 is springy to allow for adjusting the force with which the saw teeth are pressed against the swaging parts and to compensate for minor variations in the size of the saw and, for straight saws, the carriage is adjustable by bolts 32 in slots to accommodate various tooth angles. The saw may be mechanically indexed to bring the teeth into position or, to permit manual indexing, the machine may be stopped after each swaging operation by a limit switch or operate continuously but slowly enough to allow time for manual indexing. The saw blade is supported near the tooth being swaged by a fixed support 19 and by an adjustable screw 20 or by a support movable into and out of clamping position.
Patent GB-648820-A (GB)
Title: Improved method of and apparatus for dressing grinding wheels
IPC: B24B53/08
Filed: 1946-12-30
Abstract: 648,820. Trueing grinding-wheels. GLEASON WORKS. Dec. 30, 1946, No. 38025. Convention date, Dec. 29, 1945. [Class 60] A method of dressing the side surface 26 and tip surfaces 27, 28, Fig. 1, of a grinding wheel 25 comprises swinging a diamond 30, Fig. 9, about an axis 31 inclined or perpendicular to the side surface or to a plane tangential to the centre of this surface while moving the diamond in the direction of the axis, and, between dressing of the side and tip surfaces of the wheel, swinging the diamond about a second axis 35<SP>1</SP> at a right or other angle to the first axis and passing through the point of the diamond; by this means, the diamond is maintained at a constant angle to a normal to the wheel profile at the point of contact with the diamond. The apparatus for carrying out these movements includes a holder 90, Fig. 12, in which is journalled an arm 82 carrying the diamond 80 and secured to a sleeve 86 integral with a bevel pinion 87; a pinion 116 meshing with the pinion 87 is secured to a shaft 117 which is also journalled in the holder 90 and in a frame 95. The latter rotatably supports the holder and a shaft 103 carrying a paddle piston 104 which is oscillated between two stops by fluid pressure to actuate a cam 100. A groove 98 in the cam axially displaces a follower 97, Fig. 13, having an arm 101 to engage the periphery of the cam and to control the rocking motion of the holder. The shaft 103 has a clutch 105 co-operating with a gear 106 meshing with a gear 107, Fig. 15, mounted on a countershaft 112 journalled in the frame 95. These two gears are rotatably connected with two toothed sectors 108, 109 which mesh intermittently with a gear 110 secured to the shaft 117 so that the latter oscillates the arm 82. The extent of movement of the gear 110 is determined by two recesses in its hub wheel which are alternatively engaged by a spring-loaded ball 118 as the gear oscillates. The axes of the holder 82 and the shaft 117.correspond with the axes 35<SP>1</SP> and 31, respectively. By suitably designing the shape of the cam 100 and its groove 98 and the toothed sectors 108, 109, the diamond can be moved to dress automatically the shoulder 28, Fig. 1, outside surface 26 and tip surface 27, in addition to the rounds 41, 42 joining these surfaces, and the outside surface 26 may be concave or convex. The radii of the rounds 41, 42 may be made unequal, as shown in broken line, by adjusting the diamond along the axis 31 without changing the cam 100. The apparatus may be adapted to dress the internal surfaces of cup wheels and the side and peripheral surfaces of disc wheels. The outside surfaces of cup wheels are dressed to a coarser pitch than the inside surfaces to avoid " burning ". U.S.A. Specification 2,311,302 is referred to.
Patent GB-303025-A (GB)
Title: Improvements in or relating to apparatus for controlling the movements of cages in mine shafts
IPC: B66B5/10
Filed: 1928-12-24
Abstract: 303,025. Spelmans, E. Dec. 24, 1927, [Convention date]. Electric plant.-In winding-gear for mine cages means is provided for applying the brake to the winding engine whenever the speed of the cage exceeds a predetermined speed at any point of the run. At intervals in the shaft 2 are arranged transformers 3 comprising a core 4 of laminated plates surrounded by concentric coils 5, 6, Fig. 2, through the former of which alternating current is passed. The ends of the coil 6 are connected to an apparatus 7 at the pit head which controls the application of the brake. The arrangement is such that when the cage 1 passes a transformer, one of its metal uprights passes closely to but does not touch the ends of the cores 4 thereby reducing to a minimum the value of the air gap and causing a secondary current to flow in the coil 6 of sufficient strength to actuate the apparatus 7 which comprises a rotatable member 9 turned in one direction or the other by currents flowing in the coils 8, 12. Current is supplied to the coil 8 and to a relay 15 by the coil 6. The coil 12 is supplied from a source B when the relay 15 is actuated. The member 9 carries one of the elements of a system of contacts 11 provided in the circuit c controlling the braking apparatus. When the coils 8, 12 are energized, the action of the coil 8 and weight 10 is greater than that of the coil 12 and the contacts 11 remain closed. If the duration of the flow of current in the coil 8 is less than that of the current in the coil 12 owing to the excessive speed of the cage, as soon as current ceases to flow in the coil 8, the current flowing in the coil 12 will turn the member 9 in the direction of the arrow f<2>, thus opening the contacts 11 and applying the brakes. When the current ceases to flow in the coil 12, the weight f<2> will return the member 9 to its initial position with the contacts 11 closed. In a modification, Fig. 4, two consecutive transformers are connected to a single apparatus 7. The relay 16 receives the secondary current from the transformer which is first actuated by the cage, and when actuated allows current to flow from the source B<1> round the coil 8. This current is cut off by the relay 17 when it ceases to be energized owing to the failure of the secondary current from the transformer subsequently actuated by the cage. In another modification the transformers are replaced by switches 18, Fig. 5, in a circuit supplying current to the relays 15, 16. In a further modification the cage is provided with a transmitting set 19, Fig. 6, and a series of frame receivers 20 are mounted in the shaft. The flow of current during the passing of the cage causes (1) an auxiliary current of limited duration to flow through the coil 12, and (2) an auxiliary current to flow through the coil 8 during its own duration.
Patent GB-1244779-A (GB)
Title: Drilling fluid
IPC: C09K8/08
Filed: 1969-07-29
Abstract: 1,244,779. Drilling fluids. PAN AMERICAN PETROLEUM CORP. 29 July, 1969 [25 Nov., 1968], No. 38101/69. Heading E1F. A drilling fluid comprises an aqueous composition of flaxseed gum, ground asphalt, ground asbestos, a preservative; oil, water soluble salt and either the reaction product of 3-6 moles of ethylene oxide with one mole of C 8-12  alkyl phenol or the reaction product of 8-15 percent by weight of ethylene oxide and 85-92 percent by weight of polypropylene glycol of MW 1700 to 3500. 1,244,781. Casting kerbs. JOHN LAING & SON Ltd. 3 Sept., 1968, No. 5554/69. Divided out of 1,243,010. Addition to 1,156,331. Heading E1S. [Also in Divisions G3 and H1] The concrete laying machine of specification 1,156,331 has the sub-frame, which carries the tamper and smoothing plate, controlled by a sensing device adapted to follow a datum and mounted on a separate carrier suspended from the machine frame and coupled to the sub-frame for displacement in unision therewith. The separate carrier is a platform 77 on which the sensing devices 75, 76 are mounted and which is connected by links 78 and crank arms 79 to "torque tubes" 80 mounted in bearings 82 on the chassis 70. The respective ends of the sub-frame 73 are connected by links 83 and crank arms 84 with the tubes 80. The sensing devices may be switches of the kind described in Specification 1,243,010 or have reed contact units on the ends of arms of a balanced structure (Fig. 2, not shown).
Patent GB-911687-A (GB)
Title: Improvements in and relating to flushing devices for vessels such as chamber pots, bed-pans and urine bottles
Inventor: SAUER WALTER
IPC: A61G9/02
Filed: 1960-11-08
Abstract: 911,687. Cleansing bed-pans &c. ZIMMER, H. Nov. 8, 1960, No. 38285/60. Class 26. In a flushing device for vessels such as chamber pots, bed-pans or urine bottles, the rear wall 1a of the flushing chamber 1 has nozzles 3, 4, 5 thereon for cleansing the vessels, the nozzle 5 being surrounded by an annular holder 6 on to which a vessel such as a urine bottle can be slipped, the inner face 7a of the lid 7 of the chamber having a resilient wire clip 11 thereon to hold vessels other than urine bottles. The edge of the inner face 7a has a rim 19 to deflect impinging water and the lid 7 is hinged by means of a pin 8 to the chamber's front wall. The inner face 7a is extended downwards past the pin 8 to act as an apron 7b. There may also be an external plate 20 to give further protection. A support 9 carries a projection 10 on which the lid rests when open.
Patent GB-1064286-A (GB)
Title: Improvements in or relating to the preparation of 10-a-methyl steroids
IPC: C07J5/00
Filed: 1963-09-30
Abstract: Ring A saturated 2-unsubstituted 10a -methyl-steroids are prepared by treating ring A saturated 2,19-cyclosteroids of the 5a -androstane or allopregnane series which contain a 3-keto or 3b -hydroxy group with hydrogen in the presence of a heavy metal catalyst.  The starting materials may contain, for example, a 17-keto group, a 17b -acyloxy or -hydroxy group with or without a 17a -hydrocarbon group, a 17b -acetyl group with or without a 17a -hydroxy or -acyloxy group, or a dihydroxy-acetone side chain preferably protected as a 17a ,20 : 20,21-bismethylenedioxy group, and a 16-hydroxy, -keto or -methyl group or a 16a ,17a -isopropylidenedioxy group.  Carbonyl groups, e.g. at position 3, may be partially or totally reduced during the process, and the formed alcohols may be oxidized.
Patent GB-1007121-A (GB)
Title: Improvements in wood working benches
Inventor: THOMAS GEOFFREY WILLIAM
IPC: B25H1/08
Filed: 1963-10-01
Abstract: 1,007,121. Releasable fastenings. J. W. THOMAS. Sept. 24, 1964 [Oct. 1, 1963], No. 38582/63. Heading E2B. [Also in Division B4]. A bracket D<SP>1</SP> through which the bar D of a joiner's cramp passes, is mounted on the underside of a work bench, the bar being secured in position by a pin d<SP>2</SP> which passes through slots in the bracket and through a slot in the bar, the bar being adjustable in height by a wedge d<SP>3</SP> or alternatively by a thumb screw Fig. 12, (not shown).
Patent GB-986163-A (GB)
Title: Improvements in package type display cards
Inventor: BRODIE ROBERT JOHN
IPC: B65D75/36
Filed: 1962-10-11
Abstract: 986,163. Display packages. SEIDNERS Ltd., [trading as SEAGULL PRODUCTS]. Oct. 9, 1963 [Oct. 11, 1962], No. 38595/62. Heading B8C. A " blister " or " bubble " package includes a hinged flap 7 in the mounting card 1 to give access to the contents. The flaps may be originally joined by uncut portions to the card at its free edges and subsequently held in place by bent-in tongues 9. A frame 5 protects the " bubble " when the packages are stacked. The flap 7 may be shaped to locate the contents (not shown).
Patent GB-881040-A (GB)
Title: Coincidence detector
Inventor: HALSALL JAMES RICHARD
IPC: G06F7/02
Filed: 1958-12-01
Abstract: 881,040. Electric selective signalling systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 28, 1959 [Dec. 1, 1958], No. 38689/58. Class 40 (1). A device for detecting coincidence between two multi-digit numbers expressed in a non- ambiguous, binary code, comprises settable switches, a digitizer bearing coded representations of a series of decimal numbers for entry into the device, and a two-state detector which changes state when coincidence occurs. As applied to a known type of spectrophotometer the coincidence device is used in conjunction with a servomotor which drives means for bringing light of different wavelengths into effect successively. A known form of digitizer is driven from the same servomotor to supply one set of input signals to the coincidence device; the other input signals may come e.g. from another digitizer settable to represent a required wavelength. In the cyclic progressive binary code employed, Fig. 6, only one binary digit changes value at each step (Table 1) and each decimal digit is represented by its complement if the next higher digit is odd. Of the two basic coincidence circuits described, Fig. 1, the one preferred is (b) in which coincidence is represented by an open circuit and thus a de-energized detector relay RD. Sixteen such circuits, connected in parallel and with their two-way switches such as SWA, SWB, controlled from respective digitizers, through relays if necessary, control a single detector relay (Fig. 2, not shown) in a preferred form of the coincidence device. Instead of a settable digitizer for entering a required wavelength, a manually set, ten-position switch may be used (Figs. 3 and 4, not shown). Arrangements, including sets of relays, for deriving from this switch signals in accordance with the cyclic progressive code, are described, and further relays are shown which control the punching of data obtained from the spectrophotometer into a paper strip which subsequently is used to feed data directly into a digital computer. The digitizer driven by the servomotor of the spectrophotometer preferably consists of two discs, each bearing printed circuit representations of two decimal denominations, geared together in 100: 1 ratio. A similar pair of discs is phase displaced in relation to the main pair to act as a pilot system which, on reaching coincidence with a pre.set required number, causes the servomotor to be slowed down before coincidence with the main digitizer is reached. An arrangement of coincidence circuits for achieving this is described (Fig. 5, not shown).
Patent GB-1282065-A (GB)
Title: Improvements in or relating to rack arrangements for electronic equipment
IPC: H05K7/20
Filed: 1970-08-12
Abstract: 1282065 Mountings for electronic equipment SIEMENS AG 12 Aug 1970 [13 Aug 1969] 38746/70 Heading H1R A rack for mounting component assemblies comprises hollow section frame members 1a and distributer pipes 12 so that cooling air can be directed on to the component assemblies. Assembly frame 4 is pivotable and hinged to the rack by a pipe (5, Fig. 1a, not shown). In a further embodiment printed circuit boards are contained in units with the air entering from one frame member and exiting through another. Deflector plates are employed to deflect warm air from particular units and also carry the cabling. Reference has been directed by the Comptroller to Specification 1,198,025.
Patent GB-1459906-A (GB)
Title: Silver halide colour photographic material
IPC: G03C7/388
Filed: 1974-09-05
Abstract: 1459906 Colour photographic paper MITSUBISHI PAPER MILLS Ltd 5 Sept 1974 38909/74 Heading G2C Photo-sensitive silver halide photographic colour paper comprises a paper support coated both sides with a polyolefin, at least one layer coated thereon containing dispersed droplets of a solution of a colour coupler in a high-boiling solvent and at least one layer containing acid treated gelatine having a jelly strength of at least 250g. The use of the acid-treated gelatine in the droplet-containing layer or in a protective or intermediate layer prevents reticulation of the surface of the material.
Patent GB-1340226-A (GB)
Title: Glow-discharge display device
IPC: H01J17/49
Filed: 1971-08-19
Abstract: 1340226 Gas discharge display panels PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Aug 1971 [22 Aug 1970] 38976/71 Heading H1D A display device in which positive column discharge is produced comprises a plurality of cavities having walls coated with fluorescent material and each containing electrodes spaced apart by at least twice the cavity width and means for reducing the ignition voltage of the discharge. The device comprises crossed conductor arrays 35 ... 39, 56 ... 59 on either side of a plate 3 containing cavities coated with reflecting TiO 2  and Ca halophosphate phosphor. The ignition voltage is reduced by charged particles from cathode glow discharges in a corresponding array of cavities in a plate 18 between conductors 56 ... 59 and a third array 64 ... 66. A sustain voltage below the ignition voltage is applied between the first and second arrays. A potential between a selected pair of conductors in the second and third arrays produces the glow discharge. Current limiting resistors comprising a resistive layer on all electrodes of one array may be provided. The panel is filled with Hg and A at 7 cm. pressure. In another embodiment the cavities in the plate 3 extend into a gas space in which charged particles are produced by a plasma discharge between a pair of electrodes; a discharge is produced in selected cavities by varying the potential applied to the corresponding conductors of the first and second arrays. In a further embodiment the plate 18 is rotated through 90 degrees so that first and second arrays are parallel and a gas space in which plasma is generated by a discharge between two electrodes added behind plate 18. The passage of charged particles to the cavities in plate 3 and the display discharges then controlled by the potentials applied to the second array electrodes; the potential between the first and third arrays being constant. The device is used to display alpha-numeric symbols and colour TV if several phosphors are used.
Patent GB-1317917-A (GB)
Title: Door latch
IPC: E05B85/24
Filed: 1970-10-05
Abstract: 1317917 Locks AISIN SEIKI KK 5 Oct 1970 [4 Oct 1969] 38989/72 Divided out of 1317916 Heading E2A A door latch for a motor vehicle comprises a latch bolt 18 engageable by a pawl 19 that is pivotable to a latch releasing position by a control lever 38 that is pivotally mounted coaxially with the pawl on a shaft 17 and on the side of a mounting plate 41 remote from the pawl and is connected to the pawl by a projection 40 on the pawl movable in an arcuate slot 42 in the mounting plate. The latch bolt 18 is mounted to turn with a shaft 16 which has an enlarged portion 16a for engagement with a surface of a pin 12 of a striker 10 when in fully latching position. The latch bolt is retained in a safety latching or in a fully latching position by the spring urged pawl 19 and is released by actuating a lever 33 pivoted to a cover plate by turning an inside handle connected by a lever 37 to the lever 33 at one end thereof or by turning an outside handle connected to the other end. The releasing lever 33 is pivotally connected to a link 35 whereby actuating the lever pivots the link to abut an end flange 38b upstanding from the control lever 38, causing the control lever to rotate and with it the pawl 19 to release the latch bolt. A locking lever 31 pivoting on the shaft 17 is connected to the link 35 by a pin and slot connection and is actuated by an inside push button or an outside cylinder lock to rotate the end of the link 35 out of contact with the flange 38b so preventing release of the pawl from the latch bolt. Locking of the door before it is closed is cancelled by closing the door, the latch bolt pivoting and causing the pawl to rotate and with it the control lever 38 causing a flange 38a thereon to strike the link 35 which rotates and pivots the locking lever 31 to the unlocking position. Keyless locking is effected by closing the door with both the latch releasing and locking levers actuated whereby the flange 38a is unable to rotate the link 35 and locking remains effective. A rotatable plastics member 27 mounted on the shaft 17 engages the striker 10 and a resilient buffer 29 on the cover plate 41 or on a housing portion, or the member 27 may carry the resilient buffer which abuts a flange 30 on the cover plate. A resilient buffer 43 on the housing portion limits rotation of the latch bolt.
Patent GB-988105-A (GB)
Title: Improvements in rolling mills for rolling fragmentary metal into sheets, rods, wire or the like
IPC: B22F3/18
Filed: 1962-10-16
Abstract: <PICT:0988105/C6-C7/1> In a rolling mill which rolls metal in coarse or fine pieces or in powder form, a band is wrapped around each roll in the region of the entry angle or nip and the working surfaces of the bands which come into contact with the stock being rolled are free from any heating or cooling fluid used to adjust the temperature of the rolls.  As shown in Fig. 1 an endless band 3 passes around upper roll 1 and an endless band 4 around lower roll 2.  Metal powder 7 is engaged by bands 3 and 4 and rolled out into a strip 7a.  Spray nozzle 5 and 6 spray the lower runs of bands 3 and 4 with cooling fluid, the fluid being stripped off by strippers 12 and 13. Heating appliances 16 and 17 in the form of gas burners or induction coils heat the bands to the required rolling temperature.  Aluminium oxide may be sprayed on to the bands via nozzles 3 and 4 to form a heat insulating layer and the bands are preferably made of Ti or alloy steel.
Patent GB-1036640-A (GB)
Title: Improvements in or relating to machine tools
Inventor: TOMLINSON GEOFFREY ERNEST SECK
IPC: B23Q35/46
Filed: 1963-10-04
Abstract: 1,036,640. Copying lathes. BIRMINGHAM SMALL ARMS CO. Ltd. Dec. 2, 1964 [Oct. 4, 1963], No. 39099/63. Heading B3T. A copying lathe having a template which is movable relative to a workpiece comprises brackets 5 and 6 (Figs. 1, 3 and 4, not shown) mounted on the lathe frame, which support a bar 4 carrying arms 2 and 3 between which a template 1 is located. The template is pivotable about the axis of the bar 4 and is moved transversely in successive steps in accordance with adjustable screws 14, 17 and 18 and their related hydraulic plungers 9, 10 and 11 respectively. As the template is moved the stylus 15 moves in co-operation therewith to cause corresponding infeed movement of the cutting tool 16 to the workpiece 13. A screw 7 is provided with a micrometer adjustment 27 to effect accurate control of the final pass of the tool over the workpieee. Means are provided for moving the template axially at the commencement of the final pass of the tool so as to machine shoulders where required on the workpiece to remove previous tool marks.