baber/WOPTO huggingface dataset:
Patent GB-187185-A (GB)
Title: Pit cage arrester
IPC: B66B5/26
Filed: 1922-04-19
Abstract: 187,185. Williams, M. April 19, 1922. Catch gear of mine-cage type. - Shrouded pinions c<1> carrying rhomboidal-shaped plates c' are mounted on the top of the cage and mesh with vertical racks a mounted in the shafts. Slidable bars e are normally held out of the path of the plates c' by ropes f connected to the hoisting rope b<3>, but if the hoisting-rope breaks, springs d' force the bars into engagement with the plates and the pinions are locked to the rack.
Patent GB-591479-A (GB)
Title: Improvements in and relating to articles of bonded wood laminae
IPC: B27D1/00
Filed: 1945-05-01
Abstract: 591,479. Laminated articles. JABLONSKY, B. May 1, 1945, No. 10990. [Classes 145 (i) and 145 (ii)] [Also in Group VIII] A method of making an article of curved or shaped surface comprises bonding by a suitable adhesive interlaced or interwoven strip-like wood laminµ and simultaneously shaping by pressure or heat and pressure. The low pressure required for shaping may be provided by inexpensive press tools such as wooden formers or clamps. To increase the density of the material, some of the laminµ can be compressed before interlacing. The adhesive used is preferably water-resisting, for example, of a synthetic resin type. Short strip-like laminµ may be interlaced with the main laminae, the lengths of some of which may correspond to the length of the article, to give greater strength at required points, and the article may comprise one or more interlaced layers which may be bonded together with one or more plain fibrous laminµ of paper, pulp or textile fabrics, and non-fibrous layers as of wire-netting can also be inserted. When more than one interlaced layer is used, the joints between adjoining laminµ of superposed layers can be relatively staggered, and laminµ of different width can be used in the different layers.
Patent GB-350634-A (GB)
Title: Improvements in and relating to universal couplings
IPC: F16D3/32
Filed: 1930-04-07
Abstract: 350,634. Universal joints. MAR. SHAL, M. R., Barton, Overhill Road, Purley, Surrey. April 7, 1930, No. 11010. [Class 80 (ii).] A constant velocity ratio universal joint for motor road vehicles, such, as for driving steering-wheels thereon, tanks, tractors, agricultural implements, mill shafting, ships' telegraphs, valve operating shafts, steering gears, tachometer drives, flexible shafting, boring g shafts, instruments, airships' or aeroplane starting gear, comprises the arrangement of an intermediate drivetransmitting ring 5 which is constrained by links to bisect the angle between the coupled shafts in all positions. The drive is transmitted solely through journal bearings. The driving and driven shaft each carry a fork, 1, 6 respectively and a bridge member 3 carries journal pins 2 or a single pin by which it is pivoted to the fork 1. At right-angles to the pins 2 the bridge carries journal pins 4 or a single pin engaging the ring 5, and at right-angles to the pins 4 are further ring journal pins 7 carried by the fork 6. The axis of the pins 4 is maintained in the bisecting position by a yoke axially slidable on the bridge 3 and comprising two relatively rotatable collars 13, 14, one of which 13 is rotatable with the bridge 3 by the provision of flats 15 thereon. The collars are linked to the shafts by a U-shaped pivoted link 10 and a central pivoted link 11 of equal length. Relative rotation of the collars 13, 14 may alternatively be produced by their links alone or without the aid of either link such as by feathering one collar to the bridge and causing the other to be turned with the ring by guides thereon. The yoke 13, 14 may consist of a number of parts and the two main parts may be separated by balls or rollers. The link pivots may comprise ball bearings. Relative axial movement may be permitted by having one or both forks 1, 6 axially slidable on its shaft by the provision of splines, keyways, or square or other section surfaces. The journal pins 2, 4, 7 may be attached to either connected element or may be journalled in both and their bearings may be plain, ball, roller and/or rubber composition. The shaft fork 1 may be replaced by a central lug enclosed by the bridge member 3. The arms of the fork 6 may be both inside, outside or one inside, the other outside the ring 5. Adjustment for wear and alignment, together with oilways and lubricators, may be provided and the joint may be enclosed in a leather or other flexible casing which may or may not rotate with the shafts. Specification 274,857, [Class 80 (ii), Gearing, Variable-speed &c.], is referred to.
Patent GB-1173959-A (GB)
Title: Improvements in or relating to Planetary Gears
IPC: F16H55/08
Filed: 1967-03-09
Abstract: 1,173,959. Toothed gearing. P.I.V-ANTRIEB WERNER REIMERS K.G. 9 March, 1967 [22 March, 1966], No. 11027/67. Heading F2Q. In a planetary gear comprising an internally toothed outer wheel 6 engaged by externally toothed planet wheels 2, 3 carried by eccentric pins 4, 5 provided on a driving shaft 1, the teeth of the outer wheel 6 have a part circular addendum face and the teeth of each planet wheel have an arcuate face derived from the equations x = Rb sin z-s. sin t + rk sin alpha y = s (1-cos t)-Rb(1-cos z)-rk cos alpha where x and y are co-ordinates of points on the planet wheel tooth face, Rb is the pitch circle radius of the outer wheel, z is the angle through which the outer wheel would rotate for an angle of revolution t of the eccentric pin when a reaction part of the gear remains stationary, s is the radius of revolution of the eccentric pin, rk is the radius of the addendum face of the internal teeth of the outer wheel 6, and alpha is the angle between the abscissa and the tangent to the curve of the planet tooth face, at the point of contact of the tooth faces, so that tan alpha = sin t-sin z / cos z-sos t The planet wheels 2, 3 are coupled to an output shaft 8 by means of a rod 12 having ball ends 13 mounted in the wheels 2, 3 and a spherical centre portion 15 rotatably mounted in a recess in a member 7 secured to the output shaft 8 by pins 9.
Patent GB-148649-A (GB)
Title: Improvements in, or relating to, hoods and wind-screens for motor and other vehicles
IPC: B60J7/12
Filed: 1919-05-03
Abstract: 148,649. Sangster, J. Y. May 3, 1919. Hoods.-A hood, particularly adaptable for use on two-seater motor-vehicles, comprises a pair of hoop sticks b, c, the forward stick being jointed at b<1> to brackets on the body, while the rear stick c has forked jaws which pivot on studs at c<2>, and allow the rear stick to be transferred to forward studs c<3> for folding. The hood is tensioned by means of a wind-screen, connected to the front of the hood and adjusted by telescopic stays h. As shown, the ends f<2> of a lath on the hood engage with hook attachments g<2> on the screen. Friction or locking devices are used to fix the screen after angular adjustment. According to the Provisional Specification, the hood is applied to a vehicle which has a recess at the back and sides, into which the hood fits when folded. In this case, the forward pivot studs c<3> are not used, the ends c<1> abutting against the forward part of the recess.
Patent GB-769480-A (GB)
Title: Book rest for attachment to the person
IPC: A47B23/00
Filed: 1955-04-18
Abstract: 769,480. Book rests &c. HEGARTY, M. April 18, 1955 [June 25, 1954], No. 11098/55. Class 52 (3). A book rest or the like 2 is supported from the shoulders by straps 9 adjustably secured to the rest as by the selective engagement of buttons 16 on the straps with slots 15 on the edges of the rest. A further strap (not shown) joins the straps 9 across the back of the user. The book rest carries a ledge which can be adjusted by the selective engagement of screwed eyes 12 in slots 11. The book rest may hinge about an axis 3 to form a container for the ledge, the straps and the book. The lower edge is curved to fit the body. Alternative adjusting means for the straps and the ledge are described.
Patent GB-1438627-A (GB)
Title: Racking
IPC: A47B57/40
Filed: 1972-03-10
Abstract: 1438627 Racks; brackets BIRMINGHAM PALLET CO Ltd 7 June 1973 [10 March 1972 18 April 1972] 11189/72 and 17996/72 Heading A4B [Also in Division F2] Racking comprises stanchions 1 and crossmembers 2, the stanchions having inclined faces 5 with apertures 3 and the cross-members having end-plates 8 for abutting the faces 5 with hooks 10 for engaging the apertures 3. The cross-members 2 may be of angle or I section or, as shown, boxsection, and they have stops engaging the stanchions to prevent inadvertent upward movement of the cross-members. One form of stop, Fig. 5 (not shown), is a pip (15) on each plate 8 above the upper hook 10 for releasably engaging in the top of the associated aperture 3 when the hook is fully engaged in it. A second form of stop, Figs. 6 and 7 (not shown), is a spring-mounted block (16) on the plate 8 for similar releasable engagement in the aperture 3. Opposed stanchions may be interconnected by bars 25 welded to the stanchions. Adjacent sets of racking can be joined by short horizontal bars having at each end a pair of plates similar to the plates 8. Sets of the racking may be vertically inter-connected by socket members engaging the ends of adjacent vertically aligned stanchions. In a second embodiment, Figs. 8 to 11  (not shown), the stops are in the form of screws (20) engaging threaded bushes (21) fixed in the plates 8, the screws having conical end portions (23) for engaging the apertures 3 above the associated hooks on the plates 8. The stops may be in the form of tightly coiled cylindrical springs having heads in the form of pins, and the stops are hammered into holes in the plate 8 for similar engagement with the apertures 3.
Patent GB-344262-A (GB)
Title: Improvements in or relating to circular saws and milling cutters having inserted teeth
IPC: B23D61/02
Filed: 1930-04-09
Abstract: 344,262. Saws. SANDERSON BROS. NEWBOULD, Ltd. and MACGREGOR, P., Newhall Road, Sheffield. April 9, 1930, No. 11233. [Class 145 (ii).] In saw or milling- cutter teeth of the type formed in segments b of two or more teeth each and fitting together and into the body of the saw, the teeth are fluted on both sides at h<1>. Alternate teeth are bevelled roughing teeth h and finishing teeth i, the latter being slightly higher. The segments are tongued and grooved at d and c respectively, and are provided with extensions f riveted into corresponding recesses in the saw body.
Patent GB-123477-A (GB)
Title: Improvements in Lubricators or Oil Cups.
Inventor: AKEROYD SAMUEL
IPC: F16N7/02
Filed: 1918-07-10
Abstract: 123,477. Akeroyd, S., and Senior, J. W. July 10, 1918. Gravity-feed lubricators. - The flow from an oil cup is regulated by a screwed valve 8, which is held against undesired rotation by an angular head 9 fitting in a recess in a hinged cover 10.
Patent GB-1426243-A (GB)
Title: Permanent magnet lens
IPC: H01J37/143
Filed: 1973-03-08
Abstract: 1426243 Magnetic focusing apparatus J B LE POOLE 8 March 1973 [10 March 1972] 11330/73 Heading H1D A magnetic fixed-focus lens includes a pair of disc-shaped permanent magnets 9 each with an electron beam aperture of diameter substantially equal to the disc thickness, the magnets being axially magnetized with opposite polarity, the spacing between magnets being between one and two times the aperture diameters and the lens having a focus substantially at the centre of one of the discs and acting to cause parallel beams to diverge. The bores of ferrous plates 7 and spacer plate 8 may be of smaller diameter than the disc apertures and the diameter of the apertures may be less than a quarter of the smallest radial cross-sectional dimension of the disc. The outer diameter of plates 7, 8 may be smaller than that of the discs to reduce stray fields and centring rings 10 are fitted within housing 6. Depending on the coercive power, plates 7, and possibly plate 8, may have axially extending polepieces (Fig. 6, not shown). The lens may be mounted in a tube 11 axially movable in the evacuated space of an electron microscope. One or more lens systems may be displaced axially to control the magnification. Materials of high coercive force (e.g. >1400 oersteds) may be compounds or alloys of cobalt with rare earths or platinum. The external disc diameter may be 20 mms. Reference is made to groups of lenses in a rotatable housing and the equivalents of optical "zoom" lenses. Chromatic aberration and image distortion correction is mentioned.
Patent GB-129443-A (GB)
Title: Improvements in Valve Gear for Rock Drills and other Percussion Tools.
IPC: B25D9/20
Filed: 1918-07-11
Abstract: 129,443. St. Stephens, R. de H., and Climax Rock Drill &. Engineering Works, Ltd. July 11, 1918. Fluid-actuated gears; beat or lift valves. - In valve-gears for percussive tools and rock drilis wherein a lift valve is reversed at each end of the stroke by compression and the pressure of the supply, the valve i is in the form of a hollow cylinder which is moved transversely to its axis, and is housed in a rectangular cavity in a sleeve m having admission ports q, q<1> and its ends closed by caps l in which are ports n, n' leading to the cylinder admission passages d, e. The cylinder is provided with piston-controlled exhaust ports h, g.
Patent GB-722838-A (GB)
Title: Improvements in or relating to firing means for photographic electrical flash-lightdevices
Inventor: LINDSAY LESLIE
IPC: G03B9/70
Filed: 1952-05-06
Abstract: 722,838. Photographic cameras with flashlight synchronizers. REID & SIGRIST, Ltd. Aug. 6, 1953 [May 6, 1952; Jan. 9, 1953], Nos. 11460/52 and 748/53. Class 98 (1). In a camera having a setting type shutter and flashlight contacts, a contact wheel rotates during both release and resetting of the shutter and is formed with a contact area which i s swept by a contact finger so that on movement of the shutter the flashlight circuit is closed but in the set or rest positions of the shutter the contact wheel and finger are not in contact. Preferably an auxiliary switch in series with these contacts is closed only on depressing the shutter release so that the flashlight circuit is open during resetting of the shutter. As shown, the flashlight circuit is completed between one or other of contact strips 25, 26 carried on an insulated block 24 located behind the gear 14 in Fig. 1 and one or other of the plane faces 27, 28 of an idler gear 15 between the gear 14 having a dog clutch connection 22 with a film driven sprocket 13 and a gear 16 on the shaft of the winding drum 17 of a roller blind shutter. Secured to the clutch member carried by the gear 14 is a flange 20 against which bears a clockwise urged bellcrank lever 41. The shutter having been set, on depressing the release button 18, the spindle 19 bearing the gear 14 and flange 20 is moved downwardly flexing the leaf return spring 21 so that an insulated nose 41e on the lever 41 closes an auxiliary series switch 39, 40 in the lead to the central insulated terminal of the flashlight circuit jack 45 and the shutter is released so that the gear 15 is driven from the shutter drum. Consequently depending on the manual setting of a circuit selecting switch 36 the flashlight circuit is completed either through lead 46 for long lag lamps by engagement of the contact pip 29 with the face 27 of the gear 14 for the whole of the period of shutter operation, the circuit being broken at the start and end of this period due to recesses 48, 49 being presented to the pip 29; or through lead 47 for short lag or instantaneous lamps by engagement of the contact pip 30 with the portion 51 of the face 28 of the gear between the ends of a circular slot 50 through which the pip passes without contact for the greater part of the shutter operation or with a stud on the face 28 which is then clear of the pip 30. The first Provisional Specification also describes an arrangement in which by the use of a different plug to connect lamps of long lag to that used for lamps of short or zero lag these latter lamps are energized through a circuit which does not employ an auxiliary switch, the circuit being completed between a fixed contact and a depending flange on a member which rotates during movement of the shutter but only engages the fixed contact when the rotatable member is moved downwardly upon operation of the shutter trigger.
Patent GB-566907-A (GB)
Title: Improvements in or relating to self-tapping screws
IPC: F16B25/00
Filed: 1943-07-14
Abstract: 566,907. Self - tapping screws. AMERICAN SCREW CO. July 14, 1943, No. 11476. Convention date, Aug. 3, 1942. [Classes 83 (iii) and 83 (iv)] Rolling screw-threads.-Self-tapping screws, more particularly for use in plastic materials of the formaldehyde type, are produced by cutting the end of the shank at angle alpha to the axis producing an inclined flat surface 15, Fig. 1, and leaving a segmental end 14 considerably less than a semicircle. The thread is rolled between oppositely moving platen dies and the effect of the bevel 15 is to cause the end when unsupported by one die to bend somewhat away from the other resulting in flats 28, 25, 24, Fig. 5, increasing in size towards the end of the screw. The metal of the threads at the intersection of the edges of the flat 15 with the cylindrical surface is drawn out at 30, 31, Fig. 10, forming cutting edges. The leading edge does the cutting and the trailing edge tends to prevent unscrewing. In the act of inserting the screw, the initial engagement of the point of the screw in the hole is as indicated in Fig. 11, 18 being the surface of the flat and 30 the operative cutting edge. The axis S of the screw is displaced from that A of the hole. As the screw is rotated, S approaches A along a spiral path, the action being stated to produce a freer cutting action. The form of the thread is such that the angle 38, Fig. 17, is considerably more acute than the standard form and the sides of the thread are radiused at 40 into a wide flat 39 between adjacent threads. In modifications, the flat surface 15 is replaced by a concave surface formed either as a curve or by intersecting planes. Fig. 20 shows the preferred form of thread for use with sheet metal and Fig. 21 that for use in die-castings of aluminium &c.
Patent GB-488673-A (GB)
Title: Improvements in airscrews for aircraft
IPC: B64C11/04
Filed: 1937-04-22
Abstract: 488,673. Screw propellers. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and MILNER, H. L. April 22, 1937, No. 11559. [Class 114] An airscrew blade is provided with a sleeve about its root wherein the internal diameter of the sleeve is outwardly tapered to receive a tapered bush between it and the root. The bush may be of aluminium or a reinforced phenol-formaldehyde condensation product. The blade 10 of magnesium or aluminium alloy has screwed to its root a steel sleeve the outer end 13 having a tapered bore, of 5‹ taper to receive a bush 17 having a 6‹ taper which when forced into position causes the sleeve to spring sufficiently. The bush is held by a flange 16 on a nut 15 screwed to the sleeve which is locked by a cam 23 the tongue 24 of which engages one of a number of notches 26 in the bottom face of the nut. The cam is held by a screw 27. To remove the bush, the nut 16 is taken off, screw 27 is taken away, and a grease gun screwed in place of the latter to force the tapered surfaces apart for easy withdrawal of the bush. To facilitate this the bush may have an external groove 29. Specifications 429,862,444,586, and 444,587 are referred to.
Patent GB-1235272-A (GB)
Title: Shaft seals
Inventor: WILKINSON SAMUEL CLIFFORD WALT
IPC: B63H23/36
Filed: 1969-03-05
Abstract: 1,235,272. Shaft seals. CRANE PACKING Ltd. 4 March, 1970 [5 March, 1969], No. 11653/69. Heading F2B. A seal ring 10 for a stern tube and of the kind having inwardly-directed flanges 11, 12 and end faces provided with anti-friction inserts 21 as described in Specification 823,167 is arranged to be cut longitudinally and enclosed by reinforcing bands 16, the cut faces being interengaging and of a configuration such that radially-outward pressure applied to the ring against the restraint of the bands seals the cut faces together. The ring may be made of rubber and the cut faces made to interlock by dovetailing or providing a rounded head on one cut face which is received in a recess in the other. The anti-friction inserts 21 may be made of two or more arcuate metal segments and secured in the ring by screws, oil grooves being provided in the segments if desired. The reinforcing bands 16 may be made of metal strip clamped around the ring by tangential bolts and spaced apart to allow the ring to be compressed between the propeller boss 23 and the stern tube 24 to prevent the escape of oil from around the propeller shaft 14.
Patent GB-371600-A (GB)
Title: Improvements in or relating to foam reducing apparatus
IPC: B01D19/02
Filed: 1931-04-21
Abstract: <PICT:0371600/III/1> A device for separating foam from milk and other liquids comprises a container 11 containing a number of parallel annular plates 27. The liquid enters by a tangential inlet 47 and descends to the bottom leaving the pipe 13 while the gas and foam rise through the centres of the annular plates to the upper part of the vessel and overflow through the outlet 52.  Vertical baffles 20 are provided to reduce rotary motion of the liquid in the lower part of the vessel.  The plates 27 are removable for cleaning.
Patent GB-863094-A (GB)
Title: Improvements in devices for enclosing and supporting electrically operated means
IPC: H01H9/04
Filed: 1959-04-08
Abstract: 863,094. Switch and like flameproof enclosures. SQUARE D CO. April 8, 1959 [April 11, 1958], No. 11810/59. Class 38 (5). A flameproof enclosure for a switch &c. comprises a body 10 with closures 12, 14 screwed thereon. Rails 28 are fixed to the body 10 and receive movable rails 40 bearing the electrical gear. Drain and vent plugs 60 59 are provided and cable entries are also provided at 48.
Patent GB-1425656-A (GB)
Title: Synthetic resins
IPC: C09D161/14
Filed: 1973-03-12
Abstract: 1425656 Aceto-acetic acid ester chelates HOECHST AG 12 March 1973 [11 March 1972] 11846/73 Heading C2C [Also in Divisions B2 and C3] Chelate complexes of acetoacetic esters are prepared by reacting the reaction product of an olefinically unsaturated monomer containing hydroxy groups and diketene and/or a substituted diketene with a metal compound. In Example 10 the reaction product of #-hydroxyethylacrylate and diketene is reacted with aluminium triisopropylate.
Patent GB-558997-A (GB)
Title: Improvements in and relating to fireplaces and the like
IPC: F24B1/188
Filed: 1942-08-22
Abstract: 558,997. Ventilation. MAHLER, L. Aug. 22, 1942, No. 11850. [Class 137] [Also in Group XIII] Air heated in a space around an open fireplace 4 is led into the room or through an aperture 7 in the back wall into an adjacent room and also if desired through a duct 11 parallel to the chimney into the bottom of upper rooms. The flow of heated air into the upper rooms is controlled by shutters 9. Specification 532,680, [Group XIII], is referred to.
Patent GB-677525-A (GB)
Title: Improvements in or relating to ovens and the like
IPC: F24C15/08
Filed: 1949-05-04
Abstract: 677,525. Ovens. P.A.M., Ltd., WAITE, F. H., and HOWARD, R. J. May 3, 1950 [May 4, 1949], No. 11883/49. Class 126 An oven 1 is resiliently supported in its frame 5 by means of a spring 12 located between its rear wall and a supporting L-shaped bracket 9. The oven, in the form of an open-ended box, is enlarged at 2 to provide a socket 3 adapted to fit on a spigot 4 projecting inwardly of the front face of the frame, packing, 6 of heat insulating material being interposed between the socket and the spigot. The oven is supported on its underside by pads 15 which may be of heat insulating material or metal but when of the latter they should be of triagular shape as indicated at 16 by the broken lines. The opening 7 is adapted to be closed by a door.