baber/WOPTO huggingface dataset:
Patent GB-433079-A (GB)
Title: Improvements in ball and socket joints
IPC: F16C11/12
Filed: 1934-04-24
Abstract: 433,079. Ball joints. MURPHY RADIO, Ltd., and SHACKELL, A., 62, Brook Street, Hanover Square, London. April 24, 1934, No. 12336. [Class 65 (ii)] In a ball joint for light linkages the socket is formed by a perforation in a sheet metal member and the ball is held therein by a pair of resilient wires placed in front of the socket and held at a distance apart less than the diameter of the ball but capable of being sprung apart to allow the ball to pass between them. In the arrangement shown, a twisted sheet metal link 2 connects a pair of ball studs 10 having their axes at right angles. Each ball 4 bears in a perforation in the link 2 and is held therein by the resilient limbs 3 of a wire hairpin 8 bent to engage a hole in the link ; the wires 3 are held in place by a member 5 which is perforated to receive the ball 4 and slotted to receive the wires 3 and prevents the wires from being pressed so close to the surface of the link 2 that the maximum diameter of the ball cannot pass well beyond them in assembly of the joint.
Patent GB-1418638-A (GB)
Title: Electrical switchgear
IPC: H01H3/30
Filed: 1972-03-16
Abstract: 1418638 Switchgear structures; automatic circuit-breakers YORKSHIRE SWITCHGEAR & ENG CO Ltd 14 March 1973 [16 March 1972] 12482/72 Heading H1N In draw-out switchgear having a current transformer 18 in the stationary housing 1 supplying auxiliary circuits in that housing, and in which these circuits are to be controlled in accordance with the state of a circuitbreaker in the movable housing 2, auxiliary contacts 27 in the auxiliary circuits are provided in the stationary housing and are controlled by mechanical means extending between the housings, and a trip control circuit in the stationary housing controls a mechanical operating member projecting from the stationary housing and engaging a mechanical trip member projecting from the movable housing. As shown, the circuit-breaker operative mechanism, which may be that of Specification 1,418,640, operates tappets 45, 46 which project through the upper wall of the housing 2 and engage opposite ends of a rocker arm 45 pivoted on the upper wall. The rocker arm 45 engages a lever 28 pivoted on the fixed housing 1 and connected by a link 27a to the auxiliary contacts. The circuit-breaker may be tripped by a solenoid 25 mounted in the stationary housing 1 and having a plunger 26 which engages a trip element 44 in the movable housing 2. This arrangement of auxiliary contacts and tripping device avoids the need for any auxiliary connections between the stationary and movable parts and enables the use of standard assemblies in conjunction with selected control sections 24. The circuit-breaker is that of Specification 1,418,639.
Patent GB-731913-A (GB)
Title: Improvements in and relating to modulators for electric oscillations
Inventor: HOLLOWAY DENNIS GODSON
IPC: H03C1/54
Filed: 1950-05-18
Abstract: 731,913. Phase modulation. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. April 19, 1951 [May 18, 1950], No. 12533/50. Class 40 (5). In an arrangement for producing phase modulation of a carrier wave the output of a source of carrier oscillations is applied via terminal 26, Fig. 2, to the control grids of two amplitude modulating valves 27, 28, the modulating signal being applied in anti-phase to the control grids via terminal 32 and transformer 33. A network comprising an inductor 21 and resistor 20 is connected in the anode circuit of valve 27 and a network comprising a capacitor 23, and resistor 22 is connected in the anode circuit of valve 28, the output being taken from transformer 36. In the embodiments shown the resistors 20, 22 have equal values, and the reactances of the inductor 21 and capacitor 23 have equal values, but more complex networks providing equivalent series circuits may be used. It is shown that under these conditions the output comprises a first carrier wave of substantially constant amplitude, and only the sidebands of a second amplitude-modulated carrier wave 90 degrees phase displaced relatively to the first carrier wave. In an alternative arrangement, Fig. 3, the carrier is applied at terminal 26 to the first grid of a hexode valve 37, and the modulating signals are applied at 32 to the fourth grid, the second grid being connected to H.T.+ through a resistor 38. A network comprising an inductor 21 and a resistor 20 is connected in the anode circuit and a network comprising a capacitor 23 and resistor 22 is connected between the third grid and H.T.+, the output being taken from transformer 36. Oscillatory current at carrier frequency flows to the anode and the third grid, the division of current between the anode and the third grid being controlled by the modulating potential on the fourth grid. The valve 37 may provide the carrier oscillations by connecting a tuned circuit between the first grid and earth and connecting the cathode to a suitable tapping point. A further arrangement, Fig. 5, includes a valve having a single cathode and two anodes, a separate modulator grid being provided for each anode. The carrier is applied via terminal 26 to the first grid and the modulating signals are applied in anti-phase to the two modulating grids, the output being taken from the two anodes through transformer 36. The valve 42 may also act as the source of carrier oscillations. In a modification, Fig. 6 (not shown), the valve is provided with two deflection plates instead of the modulating grids, which deflect the stream of electrons in the valve between the two anodes in dependence upon the modulating signals. Frequency-modulation signals may be obtained by passing the modulating signals through a network which attenuates signals of high frequency relatively to those of low frequency before they are applied to the modulator.
Patent GB-1484221-A (GB)
Title: Microscope
IPC: G02B21/00
Filed: 1976-06-25
Abstract: 1484221 Microscopes PRODEV Ltd 25 June 1976 [25 March 1975] 12534/75 Heading G2J  An elementary microscope comprises a lensless collimator 19, which incorporates an adjustable aperture, and a lens 2 in the form of a bead. The lens is supported in an axially slidable sleeve 3 which engages the microscope body 5. The slide 6 is adjustably retained between spring 7 and  resilient arms 8 forming part of the body 5. The collimator comprises a cylinder 10 mounted transverse to the optic axis and has diametrically opposed apertures 11, 12 through which light passes. One end of the cylinder 10 has a grip by which it may be rotated (not shown) and the other end is open and is guided in a circular track in the body 5. Projections on the open end of the cylinder engage with recesses in the track to give "click-stop" aperture adjustment. The collimator may also include a tapered body passage 19 which is matt black to absorb light that is appreciably "non parallel".
Patent GB-620681-A (GB)
Title: Improvements in shrouded electrical resistances and in methods for manufacturing thesame
IPC: H05B3/06
Filed: 1946-04-26
Abstract: 620,681. Couplings. PEULET, H. A. April 26, 1946, No. 12683. Convention date, April 27, 1945. [Class 38 (i)] [Also in Group XI] Tight sealing of the ends of an element comprising a helical resistance wire 10 embedded in refractory material 2 in a metal tube 1 is ensured by an enamel coating 14 spread on an insulating washer 13 at each end through which the wire passes. Vitrifiable compounds are spread on the end surfaces and heated to form the coating 14 when the element is baked to anneal it after drawing it to the required length and diameter. The washer 13 may comprise a vitrifiable powder, e.g. glass, borax or enamel supported by fibres of glass cloth or asbestos. The protruding terminal wire 11 may comprise a metal helix 12 threaded into the helical resistance 1. The helix 12 may be pressed on to a rod or wire braid lead 11. The refractory filling 2 may comprise contiguous tubes of porcelain, steatite or alumina or may be fed as a paste of powder, e.g. magnesia, talc or alumina moistened with water or alcohol into the tube. A further washer may be threaded over the wire 11 and be bonded to the vitreous washer 13.
Patent GB-1388568-A (GB)
Title: Apparatus for closing the toe of a circularly knit stocking
IPC: D05B23/00
Filed: 1972-03-17
Abstract: 1388568 Sewing machine H C ANDERSEN 17 March 1972 [18 March 1971] 12739/72 Heading D1G The open toe of a stocking is sewn closed by apparatus comprising jaws 1, 2 defining a curved guide slot 3 into which is introduced the toe selvedges 31, 32, the jaws being movable from a first position (shown dotted) wherein the selvedges are introduced to a second position (full line) when the stocking toe is gripped between a presser foot 5 and an abutment surface 8, before the jaws 1, 2 are withdrawn and opened (Figs. 5 and 6 not shown) and then return to the first position, and the toe closed by sewing means not shown. The presser foot and surface 5, 8 and the sewing means are those described in Specification 1201829. The upper jaw 1 is pivoted (at 9, Fig. 2 not shown) to the lower jaw which is itself pivoted (15) to a carriage (14) slidable on bars (17) mounted on a rotatable turret (19). The movements of the jaws are effected by pneumatic rams.
Patent GB-1390982-A (GB)
Title: Pump used in dredging systems operating with compressed air
IPC: F04F1/10
Filed: 1972-03-20
Abstract: 1390982 Raising liquids G FALDI 20 March 1972 12849/72 Heading F1R A pump suitable for dredging comprises chambers 1 each having an inlet valve 3 above and adapted to seat on an inlet pipe 2, a discharge pipe 7 and valve 8, and a pressure air inlet 14 protected by a float valve 15. The inlet pipes 2 are connected to a source of clean water through non-return valves 18 and a throttle valve 11.
Patent GB-656660-A (GB)
Title: Improvements in and relating to a two wheel vehicle
IPC: B62K11/06
Filed: 1948-05-11
Abstract: 656,660. Motor cycles. SOTECOM, S. A. May 11, 1948, No. 12879. Convention date, May 16, 1947. [Classes 79 (iii) and 136 (iii)] A motor cycle frame has a central part 1 in the central plane of the wheels 5, 7 and two wheel supporting arms 2, 3 which are both on the same side of the central plane, the arm 3 for the rear wheel 7 being hinged to the central part 1, subjected to the action of a spring 33 and carrying the engine 13. The arm 3 has a projection 16 pivoting in a tube 15 carried by the arm 1. The engine 13 is carried on an extension 14 of the arm 3. The arm 3 is tubular and is connected to the exhaust of'the engine to form a silencer. The wheels 5, 7 are removably mounted on the arms 2, 3. Two covers 34 are provided on the arms 2, 3 in the region of the wheel hubs and carry brake blocks.
Patent GB-272667-A (GB)
Title: Improvements in or relating to starter drives for internal combustion engines particularly of automobiles
IPC: F02N15/06
Filed: 1926-05-20
Abstract: 272,667. Starkey, W. C., and L. G. S. Devices Corporation. May 20, 1926. Clutches, ratchet.-A starter drive for motorvehicle or other engines comprises a loosely mounted pinion 22 slidable into mesh with an engine gear 12 and driven from the shaft 18 of an electric or other motor through an over-running clutch comprising a helical spring 28 engaging internal walls 26, 27 of a pinion extension 20 and a member 21 rotating with the shaft 18, the spring transmitting the drive in one direction of rotation only and the member 21 and the pinion being slidable as a unit on the shaft 18. As shown, the member 21 is slidable on splines on the shaft and the pinion and the member 21 are held in engagement by a spring ring 24. In a modification, the clutch spring is so thin that it releases its grip when the load exceeds a maximum less than that produced by backfire of the engine. The spring may be formed of wire having two parallel flat faces separated by two convex surfaces, the wire being wound on a rotating mandrel and being held so as to draw the turns tightly together. The outer surface of the coil is then finished to the desired diameter, the outer convex surface of each turn being partly removed. V-shaped spaces for the reception of lubricant are left between the turns of the spring or actual grooves are formed in the wire itself. In a further form, Fig. 9, the recesses 26, 27 in the pinion and member 21 have split rings 56 sprung into annular grooves 55, the bent ends of the clutch spring 28 catching against the gaps in the rings, or against teeth on the end faces of the rings, when the parts are turned in a direction tending to unwind the springs; this ensures the immediate clutching engagement of the spring-
Patent GB-314630-A (GB)
Title: Improvements in and relating to electrical boiling and cooking apparatus
IPC: A47J39/02
Filed: 1928-05-02
Abstract: 314,630. Petersen, J. C., Edgar, J., and Wares, A. J. May 2, 1928. Electric hot-plates.-A boiling and cooking device is formed by an electric iron which is introduced through communicating openings in a stand and rest and is supported in an inverted position by the rest. In the example shown, a rectangular stand comprises a frame and a. guard rail c formed by angle iron, metal strip, or wire members a. An iron rest b comprises bars f having legs f<1> which are secured to bottom cross-members of the frame and are made flexible in order to grip the iron handle x<1> and to accommodate irons of different dimensions. The bars f diverge to form abutments for the stand piece g of the iron. A cooking utensil is supported by the iron x and the rest b ; an asbestos mat d having a metallic base may be interposed between the utensil and the iron. The frame members mav be detachable or hinged. According to the Provisional Specification, the rest for the iron may be adjustable in height by a screw-thread or rack arrangement, or the rest may be vertically movable under the influence of springs, and the stand may be adapted to support more than one iron.
Patent GB-322718-A (GB)
Title: Improvements in and relating to means for attachment of reels to fishing rods
IPC: A01K87/06
Filed: 1929-04-26
Abstract: 322,718. Parker, F. H. April 26, 1929. Reels.-A reel is secured to the work by two brackets a, which may be clamped to the rod by bolts and nuts d or may have lugs b secured by sliding sleeves f. Eyes E for attachment of shoulder harness may be provided on the brackets.
Patent GB-580608-A (GB)
Title: Improvements in a method of controlling the tension of a strand
IPC: B65H59/16
Filed: 1944-07-07
Abstract: 580,608. Yarn &c. tension arrangements. UNITED STATES RUBBER CO. July 7, 1944, No. 12994. Convention date, Dec. 2, 1943. [Class 120 (ii)] [Also in Group XXV] In an arrangement for controlling the tension of a strand, a drum 10, rotatable about a central axis, has a weighted cord 24 passing round it to exert a torque, while a strand 16 is advanced in the direction of the drum axis and then outwardly to the periphery to drag over an arc of the surface of the drum. The strand 16 is pulled from the drum in a direction to decrease this arc while the torque tends to increase it so that the tension of the strand as it leaves the drum will equal the constant torque. In a modification, the weighted cord is wound round a smaller drum than that bearing the strand, and the strand-bearing drum is given a squirrel-caged construction having free running rollers round its periphery.
Patent GB-267459-A (GB)
Title: A knot tying unit, more especially intended for use in knitting machines
IPC: D04B15/38
Filed: 1926-05-21
Abstract: 267,459. Larkin, W. March 10, 1926, [Convention date]. Knot-tying deviees. - The rotary bill of a knotting mechanisim comprises relatively - fixed clamping and cutting members and relatively-movable co-operating members, the latter of which are moved by an eccentric ring rotating in an opposite direction to the bill. The mechanism is particularly applicable to a knitting machine provided with pattern-controlled thread-selector mechanism and knotting mechanism for supplying a continuous thread of different coloured lengths. Specification 167,635 is referred to. The shaft 167, Fig. 10, of the knotting-mechanism 64 carries a plate gear 179 which meshes with a gear 174 on an eccentric ring 173, and also with teeth 182 on a knotting-spindle 171. The spindle 171 passes through an aperture 183 in the shaft 167, which allows oscillation of the said shaft, and has fixed to its free end three spaced members 187, Fig. 22, between which are pivoted clamping and cutting members 191. 192, fan-shaped tails 193 on which are oscillated by the eccentric rings 173, Fig. 10, A cam-slot 197 in the cover 195, Fig. 10, acts to shift a slotted blade 199 longitudinally between blades 200, all three blades engaging in a slotted flange on the gear 179 to be rocked therewith. Yarn-clamping and positioning arms 106, 106a are fixed to the bottom of the shaft 167 and co-operate with yarn-positioning and guiding- plates 92, 93, Fig. 4. When a change of yarn is required, one of the thread-carrying arms 49 - - 52, Fig. 13, is depressed to carry the new yarn into the path of a yarn-actuating arm 44 which carries it round in its peripheral groove. The yarn w in use is carried by a yarn x or by a lug 120 on the arm 44 over the tip of the plate 88 and the arm 44 in its further movement carries the yarns to the position shown in Fig. 15, a plate 101 guiding them to the knotting bill 187, 191, 192. A projection on the knotter casing 64 takes up slack in the yarns. The shaft 167 of the knotting mechanism is then rocked. The arm 106 releases the yarns and allows a spring- pressed arm 103, Fig. 13, to clamp them lightly against the plate 38; the blades 199, 200 swing to engage the clamp the yarns w, x; while the knotting bill is rotated and the members thereof opened and closed to form the knot shown in Fig. 22; the yarns are then clamped and cut by the members 191, 192, and the knot pulled off the bill, knotting proceeding meanwhile.
Patent GB-779998-A (GB)
Title: Improvements in or relating to seed drills
IPC: A01C7/20
Filed: 1956-04-27
Abstract: 779,998. Seed sowing machines. AKTIEBOLAGET WESTERASMASKINER. April 27, 1956 [April 30, 1955], No. 13035/56. Class 6(1). A seed drill is provided with a drawbar 25 which is pivotally connected to the framework of the drill so that it may be raised for transport purposes, the drawbar being provided with a post 35 having operating shafts 9, 24 mounted at the top, the shafts being telescopic and provided with universal joints to allow the drawbar and post to be raised. As shown the post is pivoted in the drawbar and the shaft 9 serves as a brace by inserting a pin 41 through the two telescopic parts of the shaft. In the operative position the drawbar is secured by a brace 27 and in the raised position by a brace 26. The shaft 9 is connected by a joint 23 to a shaft 8 provided with a crossbar 8<SP>1</SP> which is connected by lines to shafts 7 on which are mounted markers 6. Rotation of the shaft 9 causes the markers 6 to be alternatively engaged with the soil. Shaft 24 controls the adjustment of coulters 10 and this feature forms the subjectmatter of Specification 779,859. The seed drill is provided with a gangbridge which forms the subject-matter of Specification 779,996.
Patent GB-560202-A (GB)
Title: Filters using rigid porous materials
IPC: B01D29/11
Filed: 1942-09-17
Abstract: 560,202. Filters. VOKES, C. G., STOKES, E. A., and VOKES, Ltd. Sept. 17, 1942, No. 13112. [Class 4-6] A filter comprises elements A of porous ceramic material assembled together to form hollow fins, scraping blades 18 between the fins and means to give.rela-. tive motion between the blades and fins to effect the scraping action from outside the casing. As shown, annular discs A, formed with a deep annular groove 3, outer annular projections 1 and shorter, or radially-grooved, inner annular projections .2, are clamped between end plates -4, 5 around a perforated outlet tube 6 and cleaning blades 18 of springy. metal extend into theygrooves-wfrom a cranked member 16 rotatable by means of an external handle 19. A pawl may be provided to ensure the desired direction of rotation or the blades may be carried across the pack and attached to a carrying member at each end to render the direction of rotation immaterial. The discs may be made up of pieces and when made in halves, each providing half of a groove 3, the blades may be formed with rings lying in the bottom of the grooves. Radial supporting ribs may extend between the fins and the blades be oscillated between them. The hollows 20 in the fins may be filled with coarser material or strut pieces, ridges or dimples may be provided therein to take the thrust when the pack is tightened. The fins may extend inwardly. 'The -blades may be made of coarse porous material and may be operated by a periodically moving part of an automobile or its control mechanism or by the liquid to be filtered.
Patent GB-132480-A (GB)
IPC: H01M4/50
Abstract: 132,480. Rabinovitch, L., and Mond, A. July 8, 1918. Electrodes.-To the graphite and pyrolusite depolarizer of dry batteries is added a colloidal solution of an oxide of a metal capable of different degrees of oxidation, such as manganese or iron. Colloidal manganese oxide may be prepared by adding alcohol to a solution containing 1 grm. manganese formate, 10 grm. gum arabic, and 0.4 grm. crystallized sodium carbonate. The precipitate is filtered, washed with alcohol, and dissolved in water, the solution being then incorporated in the depolarizing-material of the positive electrode. The container of the cell may be formed by either the positive or negative electrode.
Patent GB-144864-A (GB)
Title: A device to safeguard motor vehicles from being stolen
IPC: B60R25/04
Filed: 1919-05-27
Abstract: 144,864. Good, A. May 27, 1919. Locking while standing. - To safeguard the vehicle against being stolen, improved means are provided for locking the cardan or propeller shaft of the kind in which a spring - controlled pl mger engages with a clutch member. The plunger C is directly connected to an operating-lever D enclosed in a casing E which is furnished with a depending housing K for the plunger and shield J for the clutch B. The plunger may also be used to make and break the magneto circuit. The operating- lever can be secured by a padlock or the like.
Patent GB-193330-A (GB)
Title: Improvements relating to recording and indicating devices for domestic use
IPC: G09F7/00
Filed: 1922-05-11
Abstract: 193,330. Evans, A. May 11, 1922. Cylinders, prisms, and like elements, rotating. -Angularly adjustable cylindrical or other rollers each bear upon their peripheral face the names of a domestic article and the maker or retailer of the article the respective names being disposed on opposite sides of the roller so that in one position the name of the article is exposed to view and in a second position the name of the maker &c. appears. In use, the names of the articles in stock are shown on the indicator the articles which require replenishing being indicated by the appearance of a maker's name. The rollers 12 are arranged in series in a frame fitted with fillets 13, 14 the rollers in a horizontal row being mounted upon a spindle or wire 15. Fitted to each roller is a spring 16 one end of which is free to slide in a fillet 13 whilst the other end is secured to the end of the roller. By drawing forward the spring the roller is turned through 180‹, If preferred, flat name-bearing faces may be cut upon the rollers as indicated by dotted lines in the top roller shown in Fig. 7. The information displayed on the two sides of the rollers may have distinctive colouring.