baber/WOPTO huggingface dataset:
Patent GB-275094-A (GB)
Title: Improvements in or relating to taps or cocks
IPC: F16K35/04
Filed: 1927-02-10
Abstract: 275,094. Canning, T. F. Feb. 10, 1927. Locking catches. - In plug cocks having a spring-controlled ball or plunger mounted in the plug and adapted to locate the open and closed positions and to offer a yielding resistance to prevent accidental turning, the cook body a is formed with an upstanding curved wall d partially encircling the upper end of the plug b, the inner curved surface thereof being provided with one or more shallow recesses e, e<1> in which the ball or plunger may engage. The resistance to movement can be readily overcome when the plug is intentionally turned for opening or closing. The upper edge of the wall may be recessed to take the usual limit stop pin h. In another arrangement the ball or plunger may be used in duplicate in conjunction with additional recesses in the curved wall d.
Patent GB-287843-A (GB)
Title: Improvements in or relating to high vacuum switches
IPC: H01H33/668
Filed: 1928-02-07
Abstract: 287,843. Siemens -Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). March 26, 1927, [Convention date] . Vacuum gauges. - In switches in which the contacts are mounted in a highly evacuated container, means are provided for determining the vacuum at any time. For this purpose a vessel 11 containing a thermionic device is connected to the container 1 and the current flowing between the electrodes of the device is measured.
Patent GB-413775-A (GB)
Title: Improvements relating to the voltage regulation of grid controlled rectifiers
IPC: H02M7/15
Filed: 1933-02-08
Abstract: 413,775. Rectifying alternating current. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 8, 1933, No. 3892. Convention date, Feb. 9, 1932. [Class 38 (ii).] To improve the power factor at which a grid controlled rectifier operates, additional uncontrolled anodes are provided in the rectifier and these are supplied from low voltage tappings on the supply transformer. In the form shown in Fig. 3, the rectifier 12 has auxiliary anodes 21, 22, 23 which are connected to tappings on the secondary of the transformer 4. The arrangement is designed to give voltage regulation between the limits A, B, Fig. 4. This is effected by varying the phase of the grid potential. At the point A the load is taken entirely by the anodes 21-23, the main anodes being completely blocked; at the point B the load is taken entirely by the anodes 15-17 which are free to conduct during the whole of each half-cycle ; at an intermediate point the load is taken partly by the auxiliary anodes and partly by the main anodes. Further groups of anodes connected to other tapping points may be provided.
Patent GB-103038-A (GB)
Title: Improvements in Milking Machines.
Inventor: LAWRENCE WILLIAM HENRY
IPC: A01J5/02
Filed: 1916-03-16
Abstract: 103,038. Lawrence, W. H., and Kennedy, R., (Burrell & Co., D. H.). March 16, 1916. Cow-milkers.-Relates to pulsating-mechanism for pneumatic milking-machines of the type having a vertically reciprocated piston valve 18 in a cylinder 17 open at the bottom to an exhausted receiver 13 and having lateral ports D leading to the milk-tube from the teat cups, the valve 18 working over the ports D and actuated by a diaphragm 20, the lower side of which is open to the atmosphere and the upper side subjected alternately to vacuum and air pressure controlled bv a slide valve. According to the invention, the slide valve is connected to the piston valve 18 by a spring which is put under tension by the motion of the piston valve, the slide valve being kept stationary by a detent device until the piston valve reaches a certain point in its stroke. The spring 45 is coiled on a stud 46 and has two arms, one 47 of which engages an aperture in the lug 49, Fig. 5, on the piston valve 18, and the other arm 50 engages between collars 51 on the slide valve 25. On the arm 50 of the spring is a projection which contacts with a detent 56 attached to the piston valve, so that as the piston valve descends, the arm 50 of the spring presses against one side of the detent, and is prevented from moving until the detent has moved out of the path of the projection. The valve 25 has an internal air passage 32, Fig. 9, which in one position admits air by an aperture 33, annular space 29, and passage 30 to the diaphragm chamber 21. In the other position of the valve, as shown in Fig. 9, the space 34 connects a vacuum port with the passage 30, the air supply being disconnected. The passage 30 is regulated in size by a screw 40 with lock-nut 41. The slide valve and its operating-gear are carried on the diaphragm casing 22, which rests upon the upper end of the cylinder 17, Fig. 5, and can be removed with the piston valve 18.
Patent GB-1440895-A (GB)
Title: Elevator
IPC: B66B7/06
Filed: 1974-01-28
Abstract: 1440895 Elevation oscillation prevention HITACHI Ltd 28 Jan 1974 [29 Jan 1973] 03906/74 Heading B8L An elevator including a car 14 and counterweight 16 suspended at opposite ends of a plurality of main ropes 8, and interconnected by a plurality of weight compensating ropes 18 therebeneath, incorporates a rope oscillationabsorbing device provided closely adjacent to at least one of a first connecting portion 22 of the main ropes to the car or counterweight and a second connecting portion 22 of the weight compensating ropes to the car or counterweight. The oscillation absorbing device used when the sets of ropes 8 and 18 are arranged in a two row parallel relationship comprises a resilient sheet member 24 which may internally contain a support member 26 and which is inserted between the two rows providing contacting engagement with the ropes, the members 24 and 26 being rigidly fastened to any one of the ropes by a metal piece 28 and bolts 30. Any lateral oscillation in the ropes is absorbed by deformation of the resilient member 24 and any difference in the expansion and contraction rates of the different ropes is permitted by relative sliding between the member 24 and all but the member supporting rope. In the embodiment of Figs. 5 and 6 (not shown) a resilient member couples one seat secured to one rope and another seat through which an adjacent rope passes with clearance. In a final embodiment shown in Figs. 7 and 8 (not shown) each rope carries a resilient member, all of which interengage upon rope oscillation.
Patent GB-1496082-A (GB)
Title: Colour tone control device in colour television receiver
IPC: H04N9/64
Filed: 1975-01-29
Abstract: 1496082 Television HITACHI Ltd 29 Jan 1975 [30 Jan 1974 31 Jan 1974] 3958/75 Heading H4F A colour tone control device in a colour television receiver comprises four amplifying transistors I to 4, Fig. 1, to which red, blue, green and luminance signals are respectively applied. The emitter of each of amplifiers 1 to 3 is connected to a respective loading circuit. The three loading circuits are controllable by three interconnecting ganged switches 71 to 76, 81 to 86, 91 to 96 each shown in its respective first condition. By switching any one of these switches to its second condition a respective colour is enhanced (since one of the amplifiers 1, 2 or 3 has its gain increased while the gain of the other two amplifiers is decreased) by an amount retaining the overall white balance (image luminance) which is preset by variable resistors 18 to 22, to a generally preferred level. Various combinational colour enhancements may be provided by altering the switch states defining the first balanced condition. In a further embodiment Fig. 2 (not shown) simplified loading circuits are employed which comprise variable resistors in place of the switches. The loading circuits may be connected to the collectors of the amplifying transistors rather than the emitters. A device which operates two variable resistors with one lever is described Fig. 3 (not shown) which provides a mechanical limitation to the relative resistance adjustment whereby the white balance may be maintained in the latter embodiment.
Patent GB-952314-A (GB)
Title: Improvements relating to welded joints and a method of forming same
IPC: F22G3/00
Filed: 1963-01-31
Abstract: 952,314. Welding by fusion. BABCOCK & WILCOX Ltd. Jan. 31, 1963 [Feb. 2, 1962], No. 3959/63. Heading B3R. In forming a welded joint between a wall 2 and an elongated member 4, e.g., a tube or stay, passing through and inclined to the wall 2, the member 4 is formed with a protuberance 16 having a part-spherical surface and the wall 2 is provided with a circular aperture to receive the member 4. The aperture is prepared with one or two welding grooves 12, 14 and a lip 10 of diameter the same as or slightly smaller than that of the protuberance 16. The protuberance 14 may be integral with or formed on a sleeve welded to the tube 4.
Patent GB-1192903-A (GB)
Title: Tape Running Indicator
IPC: H04N5/782
Filed: 1969-01-23
Abstract: 1,192,903. Feeding record tapes; indicators. AKAI ELECTRIC CO. Ltd. 23 Jan., 1969 [23 Jan., 1968], No. 3964/69. Heading G5R. A rotatable indicator drum 20, driven by a tape reeling mechanism through gearing 49, 47, 46, 44, 43, 41, 40, 38, 24, has its surface divided by a helix 105 into two zones of contrasting colours and is observable through a slit-like window (102, Fig. 1) which extends parallel to the axis of the drum. Speed-change gearing 43, 44 may be manipulated by means of a knob 52 on a slider 51 so as to change the speed of rotation of the drum 20 according to the size of tape reel being used. Adjustment of a slider 37 secured to an endless belt 32 sets the position of a contact 59 so that the tape transport is automatically reversed when a selected point on the tape is reached. A wheel 53 facilitates manual adjustment of the drum 20.
Patent GB-1467114-A (GB)
Title: Arrangement for interconnecting railway trucks
IPC: B61F5/14
Filed: 1975-01-29
Abstract: 1467114 Railway vehicles MLW-WORTHINGTON Ltd 29 Jan 1975 3972/75 Heading B7L A railway vehicle includes two axle trucks 11, 12 connected by a span bolster 13 and load bearing elastic pads 14a-14d between the span bolster and vehicle chassis which are arranged so that their compression axes intersect at a point 17 on the longitudinal centre line of the vehicle, mid-way between the two trucks and at approximately rail height. Additional stabilizing elastic pads 15 between the span bolster and vehicle chassis are arranged so that their compression axes intersect at a point 32 above intersection point 17. The elastic pads are interleaved metal and rubber laminated pads. The axle trucks have one, two or three axles. The elastic pads 14a-14d are arranged above the mountings connecting the span bolster to the trucks. Diagrammatic arrangements of two, three, four, six and eight elastic pads between the space bolster and vehicle chassis are illustrated in Figs. 6A-6G (not shown).
Patent GB-819651-A (GB)
Title: Grafting of polymerizable compounds on to pre-formed polymers
IPC: C08F291/18
Filed: 1956-02-08
Abstract: Polymerizable compounds of the general formula <FORM:0819651/IV (a)/1> wherein R1 and R2 are of a nature which will permit polymerization in a free radical aqueous emulsion system are graft polymerized on to a preformed synthetic polymer by effecting an aqueous emulsion polymerization of one or more polymerizable compounds of the above general formula to form a polymer latex, contacting the latex with oxygen and/or ozone and then polymerizing a monomer of the above general formula dispersed in the oxygenated latex.  Polymerizable compounds specified are butadiene, isoprene, chloroprene, piperylene, myrcene, styrene, p-chlorostyrene, vinyl naphthalene, acrylic and methacrylic acids, acrylonitrile, methyl acrylate, methyl and butyl methacrylates, methacrylamide, vinyl ethers and ketones, vinyl and vinylidene chlorides and vinyl acetylene.  The latex of preformed polymer is prepared by conventional emulsion technique with the aid of emulsifiers, activators and mercaptans, and after oxygenation further quantities of these ingredients may be added together with the monomeric material to be grafted.  When graft polymerization has proceeded to the desired degree of conversion it may be stopped by the addition of a short-stopper such as ammonium dimethyldithiocarbamate.  In the examples the grafting of various monomers on to preformed polybutadiene, polystyrene and butadiene-styrene copolymers is described.  Specification 791,453 is referred to.
Patent GB-556330-A (GB)
Title: Improvements relating to sparking plugs
IPC: H01T21/02
Filed: 1942-03-28
Abstract: 556,330. Sparking-plugs. LODGE PLUGS, Ltd.. HOPPS, B., and SMITHELLS, C. J. March 28, 1942, No. 4137. [Class 7 (iv)] In a sparking plug having a ceramic insulator a and a central electrode consisting of a metal core d with an attached or integral firing tip e of smaller diameter, products of combustion are excluded from contact with the core d by a seal f consisting at least in part of vitreous material between the insulator and the inner end of the core. The seal f, in the form of a pellet of powdered borosilicate glass and alumina with a binder such as paraffin wax, is slipped over the tip e as in Fig. 4 and the assembly heated to 850‹ C. under endwise pressure. The core may be of copper, silver or other metal and the tip of platinum or platinum alloy, or they may be in one piece of nickel or nickel alloy. The shoulder at the junction of the core and tip may be square, Fig. 4, or tapered, Fig. 6.
Patent GB-913211-A (GB)
Title: Improvements relating to fluid control valves
Inventor: BURROWS GODFREY
IPC: G01N30/20
Filed: 1959-02-05
Abstract: 913,211. Valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 4, 1960 [Feb. 5, 1959], No. 4146/59. Class 135. A valve for interconnecting ports 7b, 7c directly or through a conduit 10 comprises a piston 2 slidable in end sealing rings 5 and intermediate 0-rings 6 and formed with a pair of axially spaced, axially extending ducts 8a, 8b which, with the piston in the position shown interconnect ports 7a, 7b and ports 7c, 7d. When the piston is displaced to the right the duct 8a interconnects the ports 7b, 7c.
Patent GB-723661-A (GB)
Title: A new or improved method and machine for cutting oil grooves
IPC: B23B5/48
Filed: 1953-02-13
Abstract: 723,661. Copy-turning; rifling. TROJAN, Ltd., WILLIAMS, A., SHARKIE, H. P., and NASH, A. J. Feb. 13, 1953 [Feb. 18, 1952], No. 4278/52. Class 83 (3). A method of using a machine for cutting a number of external or internal oil grooves 98, Fig. 12, consists in operating the machine continuously until the cutting is complete, the machine comprising means for connecting a slide 24 to a rod 61 reciprocated by a crank 54, tool-supporting means 25 adjustable transversely of the movement of the slide and of a spindle 22, and means for rotating the spindle and the crank in a pre-determined relative fractional ratio. An electric motor rotates the spindle 22 through belt gearing, worm and worm wheel 35, shaft 36, gearing 37, 38 and clutch 39. The work may be adjusted angularly by index rings 40, 41 and an indicator 44, and the clutch, when disengaged, may be secured against rotation by a plunger 42. A further gear on the shaft 36 rotates, through change gearing, the adjustable crank 54 which reciprocates a cross-head 59 connected to the rod 61. Further gearing rotates a splined shaft 67 engaging the rear of the saddle 24. The saddle 24 may be traversed by a handwheel 70 and rack-and-pinion gearing 71 or may be locked to the rod 61 by a handle 74. The crossslide 25 with its adjusting screw 80 is urged rearwardly by spring means and carries a roller 86 engaging a cam 87 on the shaft 67. The cam relieves the tool on its return stroke. If it is desired to cut on both strokes, the roller is withdrawn from the cam by compressing the relieving spring. If the work is tapered or irregularly shaped, the tool slide is moved by a roller 113 engaging a cam 110 on an adjustable plate 105. The relieving cam 87 is not then effective. By stopping the movement of the slide or the work, longitudinal or circumferential grooves may be cut. Specifications 7529/03, [Class 83], and 148,741, [Class 83 (iii)], are referred to.
Patent GB-621294-A (GB)
Title: Improvements in and relating to sliding and folding doors, especially those of great size
IPC: E05D15/26
Filed: 1947-02-14
Abstract: 621,294. Sliding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., LEONARD, J. W., and HOWLETT, A. D. Feb. 14, 1947, No. 4293. [Class 20(iii)] In folding and sliding doors comprising leaves hinged in pairs and sliding posts to which the paired leaves are hinged, the axial, i.e. vertical length of the rollers carried on the posts is great enough to ensure constant engagement with the narrow face of their guiding channel carried by the doorway head for all positions of the posts and deflections of the head. A guiding channel for sliding posts 9 is provided by bulbs 8 of-angles 6, 7 secured to head members 5. Channel-section extensions 10 of the posts bolted back to back to the web of the posts, each carry two rollers 15 of sufficient length to ensure that the guiding channel is always in contact notwithstanding any sag or deflection of the head members 5. A spigot bearing for the rollers comprises a spigot 14 screwed into a lug 13 integral with the extension 70 and a hollowed plug 16 welded to the roller and accommodating a sleeve 17 between which and the spigot are placed bearing rollers 18, preferably of flexible type. An oil seal 19 is retained in the plug by a washer 21. Specifications 5828/13, [Class 20(iii)], and 465,756 are referred to.
Patent GB-491296-A (GB)
Title: An improved drain trap
IPC: E03C1/294
Filed: 1938-02-11
Abstract: 491,296. Drain - traps. KAY, F. Feb. 11, 1938, No. 4332. [Class 33] In a trap of the kind in which the outflow leg of a U-shaped passage forming the trap is divided into two passages by a partition extending from near the top of the outflow leg to near the bottom, and in which a deflecting tongue extends downwards from the upper wall of the trap between the partition and the outlet leading to the drain, a web extends inwards from the wall of the trap near the outlet opening and forms a discharge passage leading to the drain and assists to retain water in the trap. The trap comprises a flat sided casing provided with inlet and outlet openings 2, 3, an internal web 6 extending from the upper wall to near the bottom of the casing so as to separate off an inflow passage 8, a second web 7 extending from the bottom to near the top so as to separate off an outflow passage 9 between the webs 6, 7 from an additional water space 10 between the web 7 and the walls of the casing, and a web 11 above the space 10, there being an opening 16 through the web 7 near the bottom so as to equalize the water levels on either side of that web. The flow of water through the trap is baffled and in part diverted into the space 10 by the web 11 and an inwardly extending web 12. The space 10 thus retains sufficient water to maintain the seal. The passages 8, 9 and the openings 14, 15 are of equal cross-sectional area.
Patent GB-194113-A (GB)
Title: Improvements in lamp globes
IPC: F21V17/14
Filed: 1922-02-14
Abstract: 194,113. Webber, J. Feb. 14, 1922. Globes; globe-holders.-In a lamp globe fitting, a lamp shade or reflector, with a channel-shaped lower end into which fits the upper end of a lamp protector or globe to secure together the shade and globe, is provided with pins extending laterally from side to side of the channel and engaged by bayonet slots in the said upper end of the protector. In one form, the shade a, Fig. 2, has attached a part c adjacent its lower edge so as to form the channel d around the edge, across which channel extends the pins e. The lower part or globe b, Fig. 3, has a ring f at its upper edge in which the bayonet-joint slots g are provided. The ends of the pins e are covered by the enamel a or other finishing material upon the shade a. The globe b may be made of enamelled wire mesh which has light diffusing properties.
Patent GB-1501071-A (GB)
Title: Chairs
IPC: A47C31/11
Filed: 1976-02-04
Abstract: 1501071 Chair covers YOSHIDA KOGYO KK 4 Feb 1976 [6 Feb 1975] 04413/76 Heading A4M A chair with a backrest 12 and a seat 11 has a backrest cover 19 with an upper end 19a releasably connected to a hook at or behind the top of the backrest 12 and a lower end provided with one stringer 21a of a sliding clasp fastener 21 for releasable connection to another stringer 21b carried by the seat 11 or by a cushion pad laid over the seat 11.
Patent GB-966232-A (GB)
Title: Improvements in or relating to conveying apparatus
Inventor: ROBERTSON DOUGLAS
IPC: A23G7/00
Filed: 1961-02-06
Abstract: 966,232. Shaker conveyers. ROWNTREE CO. Ltd. Feb. 6, 1961, No. 4460/61. Heading B8A. A shaker conveyer 10 for conveying chocolates has three sections 11, 12 and 13 along which chocolates 16 are conveyed from section 13 to section 11. Sections 11 and 13 are provided with separate vibrators 17 and 20 respectively; and section 12 is provided with two vibrators 18 and 19. As the chocolates pass along the sections they engage and operate successively switches 23, 22 and 21, the operating members of which pass up through the bottoms of the sections. Switches 22 and 23 control vibrators 18 and 19, respectively, and switch 21 controls vibrator 17. When a chocolate engages a switch it stops the respective vibrator. The effect is such that the chocolates are conveyed along the conveyer sections until one chocolate rests on switch 21, a second chocolate rests on switch 22 and a third chocolate rests on switch 23. The vibrators then are all stopped. When an operator removes the chocolate resting on switch 21 the vibrators recommence until once again chocolates rest on each of the switches and the vibrators again stop. The cycle then recommences.
Patent GB-229855-A (GB)
Title: Improvements in reel holders for strip and like material
IPC: A47K10/38
Filed: 1924-02-21
Abstract: 229,855. Turner, A. Feb. 21, 1924. Roll-holders. - A holder for strip material comprises a cardboard box having a hinged, flanged lid 2 and a front wall of less depth than the end walls so that a withdrawal slot 3 for the material is formed when the lid is closed. Rectangular frames 4 with semi-circular recesses 5 are provided at each end of the box to form bearings for a rod 6 which carries the reel 7 upon which the strip is wound. The reel 7 is of such length that its flanges 7 fit within the frames 4. Reference has been directed by the Comptroller to Specifications 24400/93, [Class 42, Fabrics, Dressing &c.], 8353/94, [Class 3, Advertising &c.], 12606/13, 10152/14, 19619/14, and 209,980.
Patent GB-570237-A (GB)
Title: Improvements in and relating to fuzes for aerial bombs and like projectiles
IPC: F42C15/20
Filed: 1943-03-20
Abstract: 570,237. Bomb and projectile fuzes. ASHWORTH, D. R., CHARLES, A., and SMITH METERS, Ltd. March 20, 1943, No. 4579. [Class 9 (i)] The percussion member 12 of an aerial-bomb or like fuze is normally blocked by a ball 20 held in operative position by a pin 22. A spring 25 ejects the pin from the fuze when, prior to dropping the bomb, a retaining-arm 26 is released by the unscrewing (by hand) of a transport-safety screw 34. Return of the pin 22, after incomplete ejection, is prevented by a spring-pressed ball or plunger 42. Accidental firing movement of the member 12 after the ball 20 has been freed is prevented by a light spring 17 and by resilient tongues 36 which may be mounted on the member or interposed between the member and the fixed percussion member (firing-pin or percussion cap). The flash-passage 14 trough the member 12 may be filled will delay composition. Specification 554,235 is referred to.
Patent GB-256785-A (GB)
Title: Improvements in ladders
IPC: E06C1/32
Filed: 1925-02-19
Abstract: 256,785. Shaw, G. S. Feb. 19, 1925. Ladders.-A modification of the ladder described in Specification 246,666 consists in forming the front step portion 1 of lattice construction and bracing the back side members 5. The lugs 7 of the hinge are braced by cross members 12 and the bottom of the step portion is braced by struts 10. A cross pin 11 is inserted to bear on the top of the hinge when the ladder is in extended position. A handle 13 may be provided on the top of the rear stay to render its movement easy.