baber/WOPTO huggingface dataset:
Patent GB-201352-A (GB)
Title: Improvements in multi-voltage system of control for elevators
IPC: B66B1/08
Filed: 1922-06-19
Abstract: 201,352. Waygood-Otis, Ltd., (Otis Elevator Co.). June 19, 1922. Systeans for continuous-current motors only.- In a system of control for lift motors on multivoltage supply circuits, starting resistances are short circuited and step-by-step changes of voltage are made by means of two groups of switches working alternately. The Specification describes a sequence of starting and accelerating operations of a shunt-wound direct-current motor on a fivewire supply employing a. group of four switches D, E, F, G for making the voltage changes and a group of three switches H, I, K for short circuiting resistances 27, 28, 29; all the switches being electromagnetically actuated through a control handle situated in the lift car. When the handle is turned one step, say in the counterclockwise direction, the motor armature O is connected across the low voltage mains a, b by the switch D and starts without resistance. When the handle is turned the second step, the motor armature is first, by the action of the switch E, connected across higher voltage mains a, c through a resistance 27, and then, provided that anv undue rise of current has subsided, the resistance is short circuited by the action of the switch H. Two further steps proceeding in the same mar.ner bring the motor armature across the full-voltage mains a, e with all the resistances 27, 28, 29 short circuited. Final acceleration is obtained automatically by the insertion of resistance in the motor shunt field. Excessive speed is prevented by a centrifugal governor switch, which short circuits part of the field resistance, and if necessary, cuts off the power and connects the motor to a braking resistance. A return movement of the control handle to its initial position effects all the changes of voltage and resistance in irverse order. The system further comprises electromagnetically actuated and interlocked 'up' and 'down' switches, limit switches, and a no-voltage line switch. Reactance coils are connected permanently in series with the motor armature to choke down surges in the voltage changes.
Patent GB-612792-A (GB)
Title: Improvements in and relating to sliding clasp fasteners
IPC: A44B19/30
Filed: 1946-06-04
Abstract: 612,792. Making sliding-clasp fasteners. CARR FASTENER CO., Ltd., and PARKIN, L. June 4, 1946, No. 16965. [Class 83 (ii)] [Also in Group XXV] A slider for a sliding clasp fastener is made by bending a blank to U-shape and forming flanges on the legs. The bridgepiece is depressed from the centre line to form a recess A extending along the walls 8, 9. A separate stiffening member 14 with a hooked part 15 is inserted into a slot 19 to embrace the walls 8, 9 and is secured by bent-down lugs 11. A slotted casing 23 with pull-tab 22 and locking spring 25 is secured to the stiffener member 14. An undercut portion 20 of the stiffener retains it in position.
Patent GB-734240-A (GB)
Title: Improvements in or relating to strings for musical instruments
Inventor: NATALI EDWARD EMANUEL
IPC: G10D3/10
Filed: 1953-06-19
Abstract: 734,240. Stringed musical instruments. BRITISH MUSIC & TENNIS STRINGS, Ltd. May 4, 1954 [June 19, 1953], No. 16996/53. Class 88 (2). [Also in Groups XXII and XXIII] A metal violin string is scored minutely, for example by applying a fine carborundum to it while it is rotating quickly.
Patent GB-121622-A (GB)
Title: Improvements in Carbon Glands.
Inventor: PARSONS CHARLES ALGERNON
IPC: F16J15/30
Filed: 1917-11-19
Abstract: 121,622. Parsons, Sir C. A., Cook, S. S., and Douglas, L. M. Nov. 19, 1917. Packing, non-metallic.-In order to reduce the inward pressure of a carbon &c. packing-ring for a rotating shaft, the ring is formed with a flange a<1>, Fig. 7, which is subjected to the lower pressure only. In order to secure rigidity, the ring may be made broad, the high-pressure edge being recessed as shown. Tilting may be prevented by projections on the ring engaging the flange on the casing at the high-pressure side. In the modification shown in Fig. 5, the ring is stepped and engages a collar m on the shaft. The steam in the space n is at a reduced pressure, and the tendency of the ring to tilt is therefore minimized. A draining groove o connected with the low-pressure side may be formed in the flange of the casing in contact with the packing-ring. Tilting may be prevented by a projection p, Fig. 6, on the casing, engaging the end of the flange a<1> and perforated to permit access of steam to the back of the flange. Alternatively, the projection p may be formed on a non-contractile carbon ring interposed between the ring a and the flange of the casing. Where the higher pressure may be at .either side, two rings a are employed with flanges a<1> facing in opposite directions. The packing may be held in position by bracelet or leaf springs or otherwise.
Patent GB-572339-A (GB)
Title: Improved methods and means for wiring system
IPC: H01B7/18
Filed: 1943-10-19
Abstract: 572,339. Cable conduits; couplings. SONNENFELD, H. Oct. 19, 1943, No. 17144. [Classes 36 and 38 (i)] [Also in Group V] A cable conduit for buildings has freely movable wires provided therein at the time of its production and before installation. The conduit may consist of a flexible metal tube or of plastic material such as a rubber compound containing as little as 10 per cent rubber or a thermoplastic resin, e.g. polyvinyl chloride. The tube 2, Fig. 3, may be extruded from a mandrel 5 and die 6 around the wires 1 which are fed by rollers 7 at a rate the same as or in excess of the rate of production of the tube. In the latter case, the wires assume a wavy configura- 'tion and facilitate making connections. Alternatively, the increased speed of cable feed may operate only at the beginning and end of a conduit length. The tube is large enough to allow extra wires to be installed, and for this purpose may have a partition 10, Fig. 5. The tube may have one or two fixing strips 11, and a rib 12 forming an air space for heat insulation. In a modification the fixing means consist of spaced lugs formed by periodically opening and closing additional sections of the extruding die. Terminations may be moulded or vulcanized to the tubes and may carry plug sockets or form individual leads 16, Fig. 6, which may have distinguishing markings, colourings, or shapes 17, 18. Specification 346,639 is referred to in the Complete Specification whilst the Privisional Specification refers in addition to Specifications 250,765, [Class 36], 351,474, 524,140 and 553,570.
Patent GB-421411-A (GB)
Title: Improvements in or relating to the treatment of tea leaf
IPC: F26B1/00
Filed: 1933-06-15
Abstract: 421,411. Endless - belt conveyers. THOMSON, G. N., Dunsinane, Exmouth. June 15, 1933, No. 17145. [Class 78 (i)] [See also Group XIII] Tea leaf is evenly spread on a band conveyer which feeds it through crushing and squeezing rollers and then into a feed hopper which travels automatically over the top of a drying chamber to spread the leaf on to the upper set of a number of sets of pivotally supported trays arranged above one another in the drying chamber. In the form shown, the material is fed on a rubber belt 10 from the primary hopper H, past the revolving spreader 9, between a rubber-coated roller 11 and a supporting roller 11<a>, and under another squeezing roller 12, being then transferred by a revolving brush 13 to a moving feed hopper 14. The moving bottom of this hopper is formed by an endless rubber belt 15, which travels continuously in the direction A to B, so that the crushed tea leaf is fed on to the tilting trays in a drying chamber C. The moving chains 42 and 43 carrying the traytilting pawls are driven through gearing from the shaft of the fan 50. The hopper is carried on runways by rollers 25, 26, 27, 28 mounted loosely on shafts 21 and 22 and fitted with sprockets such as 24 driven by a chain from a sprocket 23<a>. The reversal of this sprocket, and therefore of the movement of the hopper, is obtained by the use of two fast and two loose pulleys together with a direct and a crossed driving belt. Fig. 6 shows the connection between the rear supporting rollers 27, 28 and the shaft 22 of the roller 17 supporting and driving the endless belt 15, which provides for the forward drive of the shaft 22 when the whole hopper is moving backwards. Another arrangement of ratchet and pawls on the shaft 21 provides a forward drive to the belt when the hopper is moving forwards.
Patent GB-1278724-A (GB)
Title: Display device
Inventor: BICHET MAURICE
IPC: F16B5/00
Filed: 1970-04-10
Abstract: 1278724 Stud and socket fastenings M BICHET 10 April 1970 [11 April 1969] 17222/ 70 Heading E2B [Also in Division G5] A panel 2 has a cup shaped socket 3 embedded in one surface. A stud 6 having a base 7 coated with adhesive may be attached to a supporting surface and projection 9 can engage hole 5 in the socket.
Patent GB-1153400-A (GB)
Title: Semiconductor Devices
Inventor: BECKETT LEONARD THOMAS ALEXAND
IPC: H01L23/488
Filed: 1968-04-10
Abstract: 1,153,400. Wire springs. STANDARD TELEPHONES & CABLES Ltd. 10 April, 1968, No. 17374/68. Heading F2S. [Also in Divisions H1 and H2] A resilient wire clip 8 for use in making contact to a semi-conductor wafer 1 (see Division H1) has two arms 9, 10 joined through loops 12, 13 to a link section 11. Downwardly bent portions 14, 15 of the arms 9, 10 carry foot portions 16, 17 for engagement with electrodes 2, 3 of the wafer 1.
Patent GB-265065-A (GB)
Title: Dental casting machines
IPC: A61C13/20
Filed: 1926-07-12
Abstract: 265,065. Dehn, F. B., (Merchant, F. D., and Kilgore, H. D.). July 12, 1926. Casting-machines.-A dental casting machine is provided with selfcontained air-compressing and vacuum-producing devices. After melting the metal in the cavity 11, and incidentally heating the air in a cylinder 24, a hand-lever 36 is moved down thus applying a cover 27 to the flask 8. Continued movement of the lever 36 causes the cylinder 24 to be forced down over the piston 25, against the action of a spring 32, the air in the cylinder passing through ducts 24 and forcing the metal into the mould. Preferably just before the cover 27 engages the flask a rod 46 carried by the lever 36 strikes the bottom of an axial hole 45<a> in an adjustable rod 45 connected through a lever 20 to a piston 19 which is thus moved down to evacuate the mould. The pressure and vacuum produced can be read on attached gauges and their relative values can be varied by adjusting the bolt 48, which is secured in the forked end of the rod 46, in one or other of the notches of a rack 49 formed in the lever 36. The bolt is retained in position by a leaf spring 51. The lever 36 is prevented from rising by a latch 35 engaging notches 22a in the sliding rod 22 which carries the cylinder 24. The cover 27 and plate 13 have dovetailed grooves 16, 33 filled with packing material and adapted to engage the edges of any flask used in the machine. Positioning rings 17 of required sizes are also used.
Patent GB-129656-A (GB)
Title: Improvements relating to Braces for Personal Wear.
Inventor: GERARD LOUIS
IPC: A41F3/00
Filed: 1919-07-11
Abstract: 129,656. Gerard, L. Dec. 24, 1913, [Convention date]. Braces. - The shoulder strap 1 is a single piece of material having length-adjusting devices 4, 5 at the front. The tabs 7, 10, 11 have open metal loops 6, 8, 9, provided or not with rollers, around which the strap 1 passes.
Patent GB-674744-A (GB)
Title: Improvements in or relating to electric motor control apparatus
IPC: B65H23/195
Filed: 1949-07-01
Abstract: 674,744. Control of A.C. motors. IGRANIC ELECTRIC CO., Ltd. July 1, 1949. [July 2, 1948] No. 17473/49. Class 38 (iii). [Also in Group XXXV] A control circuit for a polyphase induction motor having at least three primary terminals, comprising means for connecting the primary terminals to three lines of a supply circuit, an electron tube connected between two of the terminals and serving while conducting to effect voltage unbalance of the motor primary windings for speed reductions, and means for controlling, while the primary terminals are connected to the supply lines, the voltage impressed upon the control electrode of the tube and hence the conductance of the tube to adjust the motor speed. In Fig. 1, a three phase induction motor 12 drives a reel 10 upon which is wound a thread passing from a constant-speed spool 14 over idler rollers 15, 16. A loop of thread is attached to a weighted tension arm 18 which controls the position of an arm 31 to vary the flux linkage between coils 24, 30. The coil 24 is connected so that, when the respective polarities of the anode and cathode of valve 23 are relatively negative and positive, the voltage induced in coil 24 charges capacitor 27 through rectifier 26 and a blocking potential is applied to the grid of the valve. The conductivity of the valve during the next half-cycle of anode voltage is dependent upon the degree of discharge of capacitor 27 which is shunted by resistor 28. When maximum coupling obtains between coils 24, 30, capacitor 27 is charged to such a potential that the valve 23 is rendered non-conductive, reduction of the degree of coupling allowing the valve to fire intermittently. Increase of the conductivity of the valve 23 produces a greater degree of unbalance of the stator excitation of the motor 12 and decreases its speed. As the bobbin 10 builds up, its peripheral speed tends to increase and the loop of thread is shortened to reduce the coupling between coils 24, 30, and the speed of the motor. The relative peripheral speeds of bobbin 10 and spool 14 are thereby maintained substantially constant, the thread remaining under constant tension. The spool 14 may be replaced by other means restricting the advance of the thread from the supply end. Figs. 2, 3 (not shown), illustrate in detail the control device comprising coils 24, 30 (see Group XXXV). The Specification, as open to inspection under Sect. 91, relates to the control of a capacitor motor referred to in Specification 674,820. This subject-matter does not appear in the Specification as accepted..
Patent GB-1404400-A (GB)
Title: Dung slide
IPC: A01K1/01
Filed: 1973-04-11
Abstract: 1404400 Dung slide DE ERVEN G DE BOER BV 11 April 1973 17527/73 Heading AIM A dung slide comprises flaps 1a-1c pivoted to each; side of a cross beam 3 attached to a central body 4 longitudinally reciprocatable in a dung passage having side walls 5. When the slide moves forwardly (opposite to direction B) flap 1a, 1b close and locate against stops 10, and flaps 1c pivot to permit rollers 11 to contact walls 5. On reversing the slide (direction B) the flaps pivot to the positions shown, flaps 1b and 1c being retained against stops 13, and flaps 1a against stops 12, so that the angle between "fully open" and fully closed positions is less than 90‹. This arrangement permits dung passages of varying widths between that of cross beam 3 and that of the beam plus twice the width of flaps 1c to be cleaned.
Patent GB-1434319-A (GB)
Title: Stick compositions
IPC: A61K8/00
Filed: 1974-04-22
Abstract: 1434319 Crayon AKZO NV 22 April 1974 [24 April 1973] 17593/74 Heading B6P [Also in Divisions C3 and A5-A6] Colour dispensing sticks, e.g. for writing, drawing or painting may comprise from 5 to 40% by weight of a gel-forming compound, from 10 to 90% by weight of water optionally containing an organic solvent, and from 0À01 to 45% by weight of a dye and/or pigment, all percentages being calculated on the sum of the weights of the three afore-mentioned components. The gel-forming compound is the reaction product of (a) an aromatic diisocyanate with (b) a mono- and/or dialkylanolamine in water which optionally contains an organic solvent (see Division C3). Examples 8 and 9 describe colour dispensing sticks in which the gel-forming compound is prepared from monoethanolamine and toluene diisocyanate.
Patent GB-1180839-A (GB)
Title: An Electrical Fuse.
IPC: H01H85/24
Filed: 1967-04-17
Abstract: 1,180,839. Fuses. SIEMENS A.G. 17 April, 1967 [16 April, 1966], No. 17613/67. Heading H2G. An electrical fuse unit comprises an insulating body 1 (Fig. 3) in which a fuse cartridge 2 is held between a screw cap 3 at one end and a base contact strip 5 the cartridge being supported along part of its axial length in an interchangeable metal fitting 17 of a size suitable for holding the cartridge used, the fitting 17 being supported in the body 1 along a plane lying outside the supported portion of the axial length of the cartridge. Cartridges of different capacities may be used in the fuse unit a suitably sized fitting 17 being used in each case. The cartridges may have a sand-filled ceramic body containing indicator and fuse wires. Specification 1,180,840 is referred to.
Patent GB-1499895-A (GB)
Title: Container and cap combination
IPC: B65D41/04
Filed: 1975-04-28
Abstract: 1499895 Linerless screw cap MACK-WAYNE PLASTICS CO 28 April 1975 [7 June 1975] 17619/75 Heading B8T An internally screw-threaded cap comprises a resilient annular sleeve 24 and, spaced radially inwardly of the sleeve, a concentric annular bead 22 depending from a top wall 12, such that the sleeve, in an unflexed condition, is defined by frusto-conical surfaces, but on applying the cap to a container, the sleeve is pressed by an upper surface 44 of the neck into engagement with the bead to form a seal directly above the surface 44 with both frusto-conical surfaces downwardly convex. The bead is flexible and both the bead and sleeve taper from their unions with the top wall to distal ends. The sleeve at the union with the top wall is capable of being compressed to reduce its diameter to avoid wrinkling. The cap skirt has axial grooves 18 and a ratchet configuration 16 for co-operating with a safety cap mechanism of the container. In an alternative embodiment the bead has a V-shaped cross-section.
Patent GB-459772-A (GB)
Title: Improvements in automatic firearms
IPC: F41A19/31
Filed: 1936-06-25
Abstract: 459,772. Automatic guns. SOC. ANON. DES ANCIENS ETABLISSEMENTS HOTCHKISS & CIE, 60, Quai Michelet, Levallois- Perret, France. June 25, 1936, No. 17668. Convention date, Jan. 30. [Class 92 (ii)] The sear of an automatic firearm is carried by a movable member controlled by resilient elements which serve to damp the movements of the sear when firing is discontinued and which are so arranged as to be compressed by the breech-closure mechanism at the end of each and every recoil movement. According to one construction, Fig. 1, the sear 4 is pivoted at 5 to a member 6 slidably mounted in a fixed casing 8, and has a nose 13 adapted to engage with a nose 14 on the gas piston 15. Two sets of resilient elements 2 consisting of springs, rubber, Belleville washers, or the like, are arranged between a heel 7 of the member 6 and collars 10 of members 1. Each of these members bears against an abutment 9 of the casing 8 and passes through the heel 7, its end adjacent the heel carrying a nut 11 by which the initial compression of the elements 2 is obtained. In operation, the elements are compressed from the forward end by the breech-block 3 at the end of each recoil movement, and from the rear end by the piston 15 and sear 4 when the latter is released by the trigger 26. The sear spring 17 is mounted in a knuckle guide 18 so that it can turn freely when the sear moves forwardly. In a modification the member 6 is formed integrally with the casing 8 which is slidably mounted in the firearm. In another modification, Fig. 7, the spring 2 is compressed always from the same end. The heel 7 of the member 6 is arranged as shown behind a collar on the rear end of the member 1 and thus serves to compress the spring from the rear when the sear 4 is released by the trigger mechanism. During firing the spring is compressed at the end of each recoil movement by a lever 20 pivoted at 21, the upper end of the lever being struck by the recoiling member 15 thus giving a forward motion to the lower end of the lever which is pivotally connected at 22 to the member 1. In a further modification, similar lever mechanism is employed to compress the spring during firing, and the sear is connected to the upper arm of a two-armed pivoted lever the lower arm of which is adapted to compress the spring from its forward end. In another construction, the rear end of the horizontal sear is pivotally attached to the lower end of a vertical lever the upper end of which is pivoted to the fixed casing. This vertical lever acts as an abutment for the resilient elements which are compressed from the forward end during firing and which abut at their forward end against a fixed part of the firearm. Upon ceasing fire the. vertical lever is swung forwardly by the sear to compress the resilient elements from the rear. In the modification shown in Fig. 9, the pin 5 of the sear is carried by one arm of a pivoted lever, another arm 6 of which is disposed with a clearance J in the member 1, while a third arm 25 acts on the sear spring 17.
Patent GB-592944-A (GB)
Title: Improvements in or relating to machines for applying a sealing compound to the channel of a can end
IPC: B21D51/46
Filed: 1944-09-19
Abstract: A can end 4 is placed on a pad 3, and raised by a lever 6 &c against an annular projection 10 of a cylinder 8 which contacts the outer part of the channel 4a of the can-end 4 and holds it flat and confines sealing compound, a measured quantity of which is then supplied, to the inner part of the channel 4a.  The sealing compound is supplied through a pipe 29, a passage 27 in a piston 12 and radial passages 28 to a circumferential channel 30, and thence into a measuring pocket 11 in the cylinder 8, from which it flows by gravity down the wall of the cylinder 8 when <PICT:0592944/III/1> the piston is raised, after which the piston is again lowered to strip sealing compound from the wall and to refill the pocket 11.
Patent GB-789614-A (GB)
Title: Improvements in or relating to an arrangement for the automatic adjustment of slurcock travel to a given width of fabric in straight-bar knitting machines
IPC: D04B11/06
Filed: 1955-06-21
Abstract: 789,614. Knitting-machines. SCHUBERT & SALZER MASCHINENFABRIK AKT.- GES. June 21, 1955 [July 6, 1954], No. 17887/55. Class 74 (2). Step-by-step adjustment of the slurcock travel of a straight-bar machine during narrowing is pre-arranged at the end of the travel of the draw lever, but is made effective at approximately mid-position of that travel. The adjustment is effected by varying the effective point of engagement 8 between the draw-bar 1 and the draw-lever 9, and the adjusting mechanism in the form of a racking mechanism comprises a ratchet 29 upon a shaft 14 and operated by a pawl 28 which can be actuated by a lever 23 engaging a constantly rotating cam 22. Normally the lever 23 is held out of contact with its cam 22 by a latch 30, but upon engagement of arms 47 or 48 carried by nuts 43, 44 on the narrowing spindle with a stop 49 or 50 on the slurcock bar 17 during narrowing operation a lever 39 or 40 is actuated to remove the latch 30 from beneath the lever 23, so that the ratchet 29 is racked. Racking of the ratchet results in rotation of a shaft 14 and through gearing 12, 13 rotation of a screwed spindle 6 upon which the point 8 is located and adjustment of that point.
Patent GB-241311-A (GB)
Title: Improvements relating to grease guns
IPC: F16N3/12
Filed: 1924-07-26
Abstract: 241,311. Benton & Stone, Ltd., and Milner, C. E. July 26, 1924. Buckets; reciprocating-cylinder pumps; suction reservoirs.-A grease gun comprises a grease container a in which a piston b is adapted to be moved by means of a screwed rod &c. c. A hollow plunger h of relatively small diameter slides in a gland q on the container or an extension f, and carries at its discharge end a non-return valve j. A non-return valve r may be arranged between the container and the extension f. The grease is forced by the piston b into the extension f, and when the end i of the plunger h is applied to a nipple and the gun is pressed towards it, the grease passes through a hole p into the plunger and through the valve j to the nipple.