baber/WOPTO huggingface dataset:
Patent GB-259108-A (GB)
Title: Improvements in and relating to silver alloys
IPC: C22C30/06
Filed: 1926-03-05
Abstract: 259,108. Soc. Franþaise de Monnayage. Feb. 2, 1926, [Convention date]. Moulds; mould materials. - Silver alloys are cast in a copper mould having walls about 50 mm. thick and heated to about 150‹ C.
Patent GB-396843-A (GB)
Title: Improvements in and relating to mechanically operated musical instruments
Filed: 1932-03-01
Abstract: 396,843. Automatic musical instruments. WIGGINS, J. W., 3, Linden Avenue, Kensal Rise, and WOOD, E. H. A., 14, Windsor Road, Willesden Green, both in London. March 1, 1932, No. 6245. [Class 88 (i).] A striker pneumatic device, particularly applicable to the unit piano-player described in Specification 396,842, consists of a rigid cup-shaped chamber or upstanding flange 113, over which is attached a resilient. flat or conical diaphragm 118 having a centrally attached guided plunger 112 which either strikes a key directly or is coupled to the plunger of a second diaphragm to form a pair actuating a single striker. Springs may assist the return movements of the diaphragms. The pneumatics are staggered in a vertical plane for compactness. According to the Provisional Specification the diaphragm may be of tubular form.
Patent GB-1410261-A (GB)
Title: Process for the production of electrical insulating material
IPC: C09D5/25
Filed: 1973-02-08
Abstract: 1410261 Polymerizing unsaturated polyesters; electrical insulating materials TEXTILKOMBINAT COTTBUS VEB 8 Feb 1973 6255/73 Heading C3P [Also in Division D1] Electrical insulating materials are produced by impregnating or coating a planar or tubular carrier material with a diisocyanate-modified unsaturated polyester resin which has, on average, per condensation unit, less than one double bond, 0.5-2 tertiary CH groups and 0-1 ethyl side chains and whose degree of condensation is not greater than 8 and which contains an acrylate ester as copolymerization component; and then passing the impregnated material over a short path free from contact with other surfaces, and irradiating the material with accelerated electrons in an inert gas atmosphere. In an example, the carrier material is one such as glass fibre fabric or polyester fabric; the diisocyanate-modified unsaturated polyester is derived from maleic anhydride or fumaric acid, adipic acid, propylene glycol-1,2, 2-ethylhexanediol-1,5, 2-ethylhexanediol-1,3, hexanediol-1,5 and hexanediol-1,3; and the copolymerizable ester is ethyl acrylate.
Patent GB-1171481-A (GB)
Title: Fasteners
Inventor: FERNBERG PAUL CARL ROGER
IPC: A44B17/00
Filed: 1966-02-11
Abstract: 1,171,481. Stud and socket fastenings. ITW Ltd. 13 Feb., 1967 [11 Feb., 1966], No. 6275/ 66. Heading E2B. A fastener comprises a stud 20 including a shank portion 23 and an enlargement 24 thereon, the exterior of which is substantially circular about a longitudinal axis, and a resilient retaining member 10 including a wall 16 around a socket 11 having an entry end for receiving the stud axially, there being a plurality of internal projections 12 carried by the wall, each in the form of a bar which extends chordwise in relation to the axis, and which is integrally connected to the wall, both at the ends of the chord and by a membrane 18 adjacent to the entry end of the socket, so that the bar is spaced from the wall by a slot 17 extending axially and chordally, open away from the entry end and blind towards the entry end, the bar having an inner surface including a portion 13 which extends away from the entry end and towards the axis, to a chordal line which is abreast of part of the slot, and which includes the point on the projection closest to the axis, the size of the enlargement on the shank being such that, as it is inserted into the socket, a leading part of the enlargement will engage the bars and deflect each bar into the respective slot until the enlargement provided has passed the said chordal line, whereupon the bar will resiliently return to a position in which it engages a trailing part of the enlargement and resists withdrawal of the stud. As shown the inner surface of each bar has a second portion 15 inclined away from the axis and away from the entry end. In each slot 17 a rib can be provided if desired to limit the extent to which the stud engaging parts 12 can flex away from the axis of the retaining member. The retaining member 10 is embraced about its outer surface by a metal socket 32 having a central bore 33 through which a rivet can be passed to attach the retaining member to a part. The base 34 of the socket 32 could be replaced by a moulded section including a hollow expandable rivet as described in Specification No. 590339. In a modification the socket 32 can be formed so that the retaining member can be snapped into it, the arrangement being such that the force required to remove the retaining member from the socket is considerably greater than the force required to pull the stud out of the retaining member. The socket 32 can be provided with a strengthening annular rib. In an alternative construction the retaining member is integral with a base having a central aperture through which a rivet can be passed to secure the retaining member to a part. The stud has an aperture through which a rivet can be passed to secure it to a part.
Patent GB-161160-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C23/00
Filed: 1921-02-24
Abstract: 161,160. Soc. Anon. pour l'Exploitation des ProcÚdÚs M. Leblanc- Vickers, (formerly Soc. Anon. pour l'Exploitation des ProcÚdÚs Westinghouse-Leblanc). March 30, 1920, [Convention date]. Grinding interfitting parts together. - In a rotary engine with intergeared pistons of the Roots'-blower type the working surfaces of the pistons a are milled to a templet and the one set is ground on the other set, the shafts being geared together by the gear wheels B and forced towards each other.
Patent GB-962602-A (GB)
Title: Improvements in or relating to containers
IPC: B65D5/02
Filed: 1962-02-19
Abstract: 962,602. Cartons. HUGH STEVENSON & SONS Ltd., and E. B. HILL. Jan. 23, 1963 [Feb. 19, 1962], No. 6379/62. Heading B8P. A carton comprises a base portion co-operable with a lid portion, each portion being so formed from a single blank that each side of the assembled carton is constituted by at least three thicknesses of material and the ends of the carton by at least two thicknesses. Each blank is divided into four contiguous panels 1-4 which are folded through 90 degrees about their crease lines and secured by adhesive, stitching or stapling to form the sides of the base or the lid portion. Two adjacent panels are extended to form further panels 8 and 9, and second further panels 12 and 13, which are bent through 90 degrees to close one end with a double thickness of material (panels 8 and 9) and to give a double thickness of material to two sides (panels 1 and 12 and panels 2 and 13). The carton is made of double backed corrugated paper, the lid portion may be secured to the base portion by metal binding, and hand grips may be cut from the sides of the lid to facilitate removal thereof.
Patent GB-1134875-A (GB)
Title: Improvements in or relating to brick handling apparatus
Inventor: INGRAM DAVID JOHN
IPC: B65G57/26
Filed: 1966-02-14
Abstract: 1,134,875. Brick stacking apparatus; suction lifting heads. GENERAL ELECTRIC CO. Ltd. 3 Feb., 1967 [14 Feb., 1966], No. 6438/66. Headings B8C and B8H. A brick stacking machine having a carriage movable between pick-up and discharge positions and a pick-up head mounted for vertical movement on the carriage, has aligned brick engaging platens slidably mounted on a horizontal support on the pick-up head and movable from a closed-up brick engaging position to a spaced position controlled by stop members adjacent the support, to space the bricks prior to stacking. A conveyer 29 feeds lines of bricks on to supports 45 at the pick-up station, to abut adjustable stops 51. The supports are pivotable bodily about their upper edges so that rollers 50 become vertical and the bricks rest on pads 52 having retractable gripping elements 55. The pads are slidable horizontally and are joined by lazy tong (not shown) or lost motion spring connections, Figs. 5-7 (not shown), enabling them to be pulled apart and thus space the bricks in accordance with the spacing of the pick-up platens. Pick-up head, Fig. 2.-This depends from a rod 23 and comprises a support 22 on which are slidable mountings 21 for the platens 24. The latter may be vacuum operated and are pivoted on the mountings to enable rows of bricks to be set on their narrow faces as required. They may operate individually. Groups of mountings on either side of the rod 23 are joined to differential belt drives 30, see also Figs. 3a, 3b (not shown), so that lines of bricks may be separated into groups by moving apart of the groups of mountings. The separation is limited by stops 27 on a rod 28, the rod being indexable about its axis to bring different sets of stops into play according to the patterns required. The stack is formed on a truck carried by a turntable 5, the latter rotating 90 degrees after deposition of a given number of layers. The turntable may rise and be lowered in steps as the layers are formed, to reduce the vertical travel of the pick-up head. The speed of vertical travel of the head may be arranged to decrease when the stack or truck is approached. The stacking process is automatic and programmed throughout to produce the required patterns.
Patent GB-770033-A (GB)
Title: Improvements in inflating valve
IPC: B60C29/02
Filed: 1954-03-08
Abstract: 770,033. Tyre valves. GOODRICH CO., B. F. March 8, 1954 [March 26, 1953; March 26, 1953], No. 6439/56. Divided out of 770,032. Class 135. An inflating valve for use with tubeless tyres comprises a rubber &c. body with a rigid insert 114 bonded therein to receive the usual check valve 116, and a flanged base with an annular groove to fit within an aperture 127 in the wheel rim R. The portion 121 of the body above the groove is tapered to facilitate insertion of the body into the rim aperture. The part of the flange that engages the inner face of the rim has annular ridges 123, and the inner face of the body has bonded to it a metal washer 124 over which a rubber cover may be bonded.
Patent GB-343756-A (GB)
Title: Improvements relating to pirns or bobbins and shuttle pegs for facilitating the copping of shuttles in looms
IPC: D03J5/08
Filed: 1930-02-27
Abstract: 343,756. Loom shuttle pegs &c. COCKCROFT, J. S., Scardale, Mytholmroyd, and COCKCROFT, E. R., Lee Mount, Hebden Bridge, both in Yorkshire, and MORTON, R., Struan House, Shaw, near Oldham. Feb. 27, 1930, No. 6450. [Class 142 (iii).] A tapered paper cop A, Figs. 1 and 2, has a metal funnel B secured by a bayonet connection to a cup or holder F on a solid shuttle peg E and held in place by a spring J or a rubber pad. The invention may be applied to pivoted pegs, as shown, or to detachable pegs for automatic looms.
Patent GB-151537-A (GB)
Title: Improvements in and relating to brush holders for electric dynamos and motors and other electric machines
IPC: H01R39/38
Filed: 1920-03-03
Abstract: 151,537. Armstrong, A. March 3, 1920. Brush-holders.-The bent arm a which presses forward the brush c in its slot b is pivoted at d to a barrel e the spindle f of which is eccentric and is mounted between the pivot d and the brushslot b. The arm a has a tail-piece h coacting with a stop j. The pressure of the arm a on the brush b is effected by a spring k surrounding the barrel e and held at one end by a stationary pin m and at the other end engaging with a toothed rack n on the barrel by which the tension of the spring can be adjusted. The holder g is secured to the clamp p by a dovetailed joint connexion r by which the holder can be adjusted relatively to the clamp in a direction parallel with the brush. The holder and clamp are firmly secured together by a tapered bolt t and nut u. The brush lead v is secured to the clamp by a nut w which also serves as a lock-nut for the nut u.
Patent GB-667826-A (GB)
Title: Method of increasing the fatigue strength of chain links
Inventor: LAUENSTEIN CARL FREDERICK
IPC: F16G13/04
Filed: 1950-03-15
Abstract: 667,826. Altering physical structure. LINKBELT CO. March 15, 1950, No. 6537/50. Class 83 (iv). To increase the fatigue strength of chain elements having pitch holes, the edge areas thereof are compressed to stretch beyond the yield point of the immediately adjacent areas and then released to allow the surrounding metal, which has been stretched within the elastic limit, to apply a permanent compressive stress to the areas adjacent said pitch holes. If desired, the pressure may be applied only to those parts b, Figs. 7 and 9, of said edge areas at which fracture, such as A, is most likely to occur, and may be applied to both ends of each hole simultaneously or successively by tools having conical or rounded ends 32, Fig. 20, or 28, Fig. 19. The elements may comprise simple plates 10, plates with inserted bushings 16, Fig. 20, or plates and bushings cast integral. Silent chain link plates 20, Fig. 9, are not pressed at areas 25 to avoid any distortion at this part.
Patent GB-693818-A (GB)
Title: Apparatus for dispensing thick viscous liquids or masses
Inventor: PESCHARDT WILLIAM JULIUS SYPLI
IPC: A41G1/02
Filed: 1952-03-13
Abstract: 693,818. Delivering measured quantities ot liquids. P.S.S. (HOLDINGS), Ltd. March 13, 1952, No. 6542/52. Class 106 (v) [Also in Groups V and XXIX] A container 1 is supplied with viscous liquid through a pipe 15 and has a float valve 16. The container has an outlet extension 2 carrying a rotatable spindle 6 having a bore 7; the ratio of the diameter of the bore 7 and the internal diameter of the extension 2 and also the outlet opening 10 being between one third and two thirds. The spindle carries a pulley 8 by which means it can be rotated. A heating coil surrounds the container. The apparatus may be modified so that the spindle has several bores communicating with corresponding containers. The drop of liquid cut off by rotation of the spindle falls into a hardening bath 13.
Patent GB-163683-A (GB)
Title: Improved fuel feed apparatus
IPC: F02M37/02
Filed: 1921-02-28
Abstract: 163,683. Pallas-Zenith Ges. May 15,. 1920, [Convention date]. Vacuum apparatus.-In a vacuum fuel-feed apparatus for an internal-combustion engine, of the kind in which partial vacuum and atmospheric pressure alternate in the feed chamber a, the degree of vacuum in the chamber is limited by providing in the suction pipe f a loaded atmospheric valve h, which opens when the vacuum reaches a certain limit and admits air to the pipe f.
Patent GB-1143900-A (GB)
Title: Improvements in or relating to electric lamps and the like
Inventor: CLARK PETER REX
IPC: F21S6/00
Filed: 1968-02-09
Abstract: 1,143,900. Electric lamps. ALPHA HAND MADE GLASS CO. Ltd. 9 Feb., 1968, No. 6667/68. Heading F4R. An electric lamp or illuminated sign consists of two parts 10, 12 which surround the bulb holder 14 and bulb and are brought together and joined radially of the long axis of the holder or bulb to form the sole means by which the bulb holder is supported. The part 10 may be formed with an outwardly projecting beading to overlap the edge of the part 12, the parts being then secured together by screws 18. The parts 10, 12 may be translucent or transparent and white or coloured and may bear decorative or advertising matter applied by silk screen printing, self-adhesive vinyl previously silk screen printed, water transfer or grease crayon. Part of the design may be removable.
Patent GB-125095-A (GB)
Title: An Improved Variable Power Telescope.
Inventor: BECK CONRAD
IPC: G02B15/04
Filed: 1916-05-10
Abstract: 125,095. Beck, C., and Beck, H. C. May 10, 1916. Telescopes; telescope systems.-Variable-power telescopes consist of an object-glass a, erecting- prisms b, b<1>, a register lens c, and an eyepiece c, the erecting-prisms being placed between the object-glass a and the negative lens c. The full and dotted line positions are for different magnifying powers, the object-glass and the eye-piece being movable with reference to the prisms and the negative lens. The arrangement is such that the negative lens may be placed approximately in the focal planes of the object-glass and the eyepiece at the same time. A positive lens d, of power such as approximately to neutralize the negative lens c when these lenses are brought together, may be arranged in the focal plane of the eyepiece.
Patent GB-557421-A (GB)
Title: Improvements to a prepayment telephone apparatus
IPC: H04M17/02
Filed: 1942-05-18
Abstract: 557,421. Automatic exchange systems. SODECO SOC. DES COMPTEURS DE GENEVE. May 18, 1942, No. 6728. Convention date, May 24, 1941. [Class 40 (iv)] In a prepayment substation, the dial springs 16 are shunted by springs 15 until the prescribed coin has been inserted and are shunted again by contacts 18 if more than a predetermined number of digits are dialled. Subject to this limitation, any call can be established but the usual metering impulses are repeated back over the line in a simplex circuit to step-by-step apparatus 59 which opens the normal line circuit at 80 if the number of metering impulses indicates a call for which the charge exceeds the value of the prescribed coin. Detailed operation.-On the removal of the handset, the hook lever 34 moves clear of a lever 39 which follows it sluggishly under the action of a spring 40 and a quadrant 42 geared to a flyer 52. At the end of its travel, lever 39 by reason of a spring coupling 43 causes a lever 44 to snap over in the direction of arrow C and allow springs 56 to close to complete the loop and initiate the usual operations at the exchange. When the prescribed coin is inserted, it passes via a gauge 2 to a suspense position in which it is supported by a shutter 4 which at this stage is latched at 7. The latch is moved slightly by the weight of the coin and opens springs 15. The desired call can then be established. In response to the metering impulses, magnet 59 steps round a shaft 71 carrying a cam 68 which opens contact 80 to break down the connection if the value of the call exceeds that of the coin. The first operation of 59 also unlatches a guide member 85 which was moved on the removal of the receiver by means of a cam 100 and levers 90, 88 into a position for guiding the coin in the refund shoot. The guide member 85 now swings over to prepare for cashing in. When the receiver is replaced, levers 34, 39 move together but the quadrant 42 which is on a shaft 28 is delayed by the flyer 52. In due course, however, this shaft by means of a cam 76 uncouples cam shaft 71 from the driving magnet 59 whereupon this shaft returns to its normal position. Movement of shaft 28 also gives an impulse to a lever 19 which thus frees pawl 7 from the shutter 4 which drops and allows the coin to fall into the collecting or refund shoot according to the position of guide member 85. During this movement, pin 99 moves idly in a slot in cam 101. Lever 39 is latched at 46 until shaft 28 has completed its follow-up movement.
Patent GB-637057-A (GB)
Title: Frequency selective switching apparatus for use in alternating electric current supply systems
IPC: G05B1/02
Filed: 1948-03-04
Abstract: 637,057. Frequency selective load switching systems. ROTAX, Ltd., and HAMILTON, R. F. G. March 4, 1948, No. 6754. [Class 38 (iv)] A frequency selective switching system for connecting a load circuit i, i to a variablespeed alternator over a given range of frequencies comprises a polarized relay j-n having opposed operating windings j, k, of which winding tends to open the contacts m, n and is fed over one of a pair of rectifiers h from the terminals a of the alternator through a rejector circuit e, f. Winding k, which tends to close the contacts m, n, is similarly fed over the other rectifier through an accepter circuit b, c. At low alternator speeds the rejector circuit offers less impedance than the accepter circuit, so that winding j holds the relay contacts open. As the resonance frequency of the two circuits is approached the accepter circuit impedance falls whilst that of the rejector increases, so that winding k now overcomes winding j and the relay contacts close. Resistors d, g allow adjustment of the frequency range over which the contacts remain closed.
Patent GB-1049074-A (GB)
Title: Piston seal in gas compressor
IPC: F04B39/00
Filed: 1964-02-18
Abstract: 1,049,074. Liquid seals for pistons. MASCHINENFABRIK BURCKHARDT A.G. Feb. 18, 1964 [March 8, 1963], No. 6781/64. Heading F2T. The working clearance between the piston 1 and the cylinder 2 of a gas compressor is sealed by means of lubricant which, despite low leakage losses, is maintainedin the clearance by being fed thereto from a reserve of lubricant stored in a space 3 in the piston and separated from the gas compression space 4 by a freely movable sliding member 5 in a bore in the piston. Leakage losses are replaced by lubricant fed intermittently or continuously from a reservoir under pressure via a passage 7, e.g. in the cylinder wall, as shown. The piston 1 is provided with packing 6 and with a device 8 to limit travel of the member 5. In a modification, Fig. 2 (not shown), the lubricant supply passage 7 is formed axially of the piston 1. A spring-urged ball valve 9 prevents further supply of lubricant to the space 3 when the member 5 is at the maximum distance permitted by the device 8. At the next movement of the piston 1, lubricant leaks through the clearance so that the member 5 is displaced relative to the piston 1 causing the valve 9 to open through the action of a push-rod. At the same time, the gas pressure and, consequently, the lubricant pressure in the space 3, rise. Transmission of the latter pressure to the lubricant feed reservoir is prevented by a non-return valve 10.
Patent GB-242506-A (GB)
Title: An improved pickling process for metal plates
IPC: C23G1/08
Filed: 1925-03-13
Abstract: 242,506. Thomas, W., and Hawes, M. March 13, 1925. Pickling.-A pickling solution for metal plates is prepared by diluting ordinary commercial sulphuric acid and then adding sodium chloride and metallic zinc, the latter being added to bring about a gentle seething of the solutions for about an hour. The solution is then run off into another receptacle for cooling and then transferred to a third receptacle to clarify, being left there for about three or four days. The plates in suitable racks are immersed in the solution so obtained maintained at a temperature of about 40‹ C. In an example, 1 part of water is added to 0.58 parts of sulphuric acid and 0.25 parts of sodium chloride and 0.20 parts of zinc added.
Patent GB-116318-A (GB)
Title: Manufacture of a New or Improved Pig or Poultry Food.
Inventor: MALCOLM JOHN
IPC: A23K1/10
Filed: 1917-05-15
Abstract: 116,318. Malcolm, J. May 15, 1917. Food for animals.-The stomachs of slaughtered animals, more especially the third stomachs, with their contents, are converted into pig and poultry foods, being cooked, sterilized, desiccated, and ground into meal or rolled into plates. The product may be used alone or mixed with blood or other abattoir offal prepared in similar manner, or with cereal products such as the lower qualities of oil or seed cakes or dried and pulverized market vegetable refuse.