baber/WOPTO huggingface dataset:
Patent GB-552211-A (GB)
Title: Improvements in electro-magnetically operated circuit breakers
IPC: H01H71/68
Filed: 1941-12-24
Abstract: 552,211. Electrically-released switches. FLURBCHEIM, C. H., HENLEY, J. A., HOLMES, H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 24, 1941, No. 16617. [Class 38 (v)] An electromagnetically - operated circuitbreaker comprises a pair of windings 2, 3 arranged magnetically in series on a magnetic base 5 and co-operating with a plate-like armature 12 pivoted by means of spaced lugs 12a, 12b in which is threaded a pin 13 carried on spaced arms of a bracket 14 of magnetic material secured to base 5. A light-metal platelike bridge 20 is also pivoted to pin 13 by means of spaced lugs, and is urged away from the armature 12 by a torsion spring 30, 30d, this bias being normally rendered ineffective by a latching means. The latter comprises a roller 18 pivoted on a spindle 17 in a recess in the armature 12 and a co-operating hook-like member 22 pivoted on a pin 21 in a recess in the bridge 20. The free end of the latch member 22 is engageable by an adjustable stop 46 on a U-shaped bimetal member 45, the out-turned limbs of which are secured to the bridge 20 by studs 43h and nuts 43j which also secure the contact levers 43, 44 in the form of finger springs, as 43c and shunt strips, as 43d, and carrying contact-pieces, as 43a, co-operating with fixed contacts, as 41a. The armature 12 and bridge 20 are normally biased apart, so as to ensure proper engagement of the latch 18, 22, by means of a spring secured beneath the bridge at 25 and having a pair of parallel tongues 24a, 24b with bifurcated ends engaging between collars on retaining pins 26, 27 secured to the armature. The normal travel of the movable parts to the "off" position is restricted by the engagement of bridge 20 beneath a setting screw 37 in a plate 34 secured to a pair of pillars 32, 33 upstanding from the base 5. By removing the plate 34, the parts can be rotated clear of the casing 10 for inspection and setting of the stop 46.
Patent GB-184938-A (GB)
Title: Improvements in and relating to the operation of processes and cells for electrolytic decomposition of alkali salts
IPC: D01F2/28
Filed: 1921-06-16
Abstract: 184,938. Wilderman, M. June 16, 1921. Caustic alkali, obtaining; liquid - electrode apparatus.- In a large cell having a number of mercury cathodes for the decomposition of alkali salts means are provided for preventing or diminishing the flow of current between the cathodes and the walls of the vessels or between one cathode and another so as to prevent oxidation of the mercury or formation of solid amalgam. The cell shown consists of a circular metal tank, divided into two compartments b, c by a number of superimposed mercury troughs d constructed of iron covered with insulating- material and provided with ribs e on the underside dipping into the mercury of the trough below. The bottom of the tank is lined with ebonite or other insulator. Carbon anodes f and a stirring device g attached to a shaft h are provided within the compartment b. Small electrodes j are arranged on the surface of the mercury in the compartment c to promote decomposition of the amalgam by local action. The mercury is connected to the negative terminal o by a number of copper conductors k to each of which a set of contact forks l of nickel are connected. The conductors are preferably insulated on all surfaces exposed to the electrolyte. The potential in the separate troughs is equalized by increasing the number or the surface of the cathode connections or by providing auxiliary forks m not connected to the negative terminals. The current collectors and potential equalizers are amalgamated before being placed in the apparatus, and are again amalgamated by a small current before the cell is put in operation. Flow of current from the mercury to any part of the cell likely to ,act as a secondary cathode may be prevented by insulating such parts, or by connecting them with the current collectors by short pieces of cable so as to reduce the potential difference below the decomposition potential of the caustic solution. Alternatively the current may be reduced by increasing the distance between the mercury cathodes and the secondary cathodes or by connecting the secondary cathodes to the current collectors through a high resistance. A terminal p on the cell is connected to the negative terminal o through a variable resistance n. Chlorine leaves through a pipe r. A water-sealed relief valve q is provided. Specifications 9803/02 and 26568/10 are referred to.
Patent GB-497334-A (GB)
Title: Improvements in or relating to intermittent power transmission drives for mechanicalstokers
IPC: F23K3/14
Filed: 1937-06-15
Abstract: 497,334. Screw - conveyers. IVOR POWER SPECIALTY CO., Ltd., and MOSES, R.I. June 15, 1937, No. 16646. [Class 78 (i)] [Also in Groups XXIV and XII] Relates to means for rotating a shaft intermittently from a continuously rotatingmember, the invention being particularly applicable to mechanical stokers of either the spiral conveyer or chain-grate type. A worm wheel 2 is driven continuously by a worm 3 and has, rotatably mounted therein, a spindle 6 to which is secured a pinion 5 which is always in mesh with a gear 7 secured to the shaft 8 to be intermittently driven. A projection 10 of the spindle 6 has, secured thereto, a cam 11, or a coiled spring with its free end opened out, the cam or spring being adapted to engage at intervals a clutch member 12 pivoted at 14 to a fixed part of the apparatus, the other end being adjustable by a bolt 15, nut 17 and spring 18. Normally, during rotation of the wheel 2, the pinion 5 rotates idly due to its engagement with the wheel 7, but when the cam 11 or equivalent engages the member 12, the pinion is locked to the wheel 7 and the latter and shaft 8 are rotated. The period of rotation can be varied by adjusting the member 12. Friction gearing may replace the toothed gearing.
Patent GB-1131829-A (GB)
Title: Spigot and socket joint for cast pipes
IPC: F16L17/035
Filed: 1967-04-12
Abstract: 1,131,829. Pipe joints; joint making packing. JAMES B. CLOW & SONS Inc. 12 April, 1967 [16 Sept., 1966], No. 16710/67. Headings F2B and F2G. A spigot and socket pipe joint comprises a cylindrical spigot 15 which enters a bell or coupling sleeve 20, a gasket 30 being interposed therebetween. The gasket 30 is seated in an annular groove 21 bounded by an annular lip 23, an annular ledge 24 and an axially extending bearing surface 22 and includes three axially adjoining integrated sections. The sections consist of a solid entrance section 31 conformed to and disposed adjacent the lip 23 of the bell or sleeve, an intermediate sealing section 32 having an inner surface extending axially and gradually radially inwardly from the inner surface of the entrance section 31 and a spacing section 33 projecting axially inwardly from the sealing section 32 towards the ledge 24 of the bell or socket. The sealing section 32 is formed with a radially extending end face and a series of circumferentially spaced recesses 36 extending from the end face axially towards the entrance section 31. When the gasket is compressed when the joint is made compressed material is urged into the recesses 36 and into an annular corner pocket 35 formed between the sealing section 32 and the spacing section 33. The recesses 36 are defined by radially spaced annular walls which converge towards the entrance section 31 and by interposed cross-walls of generally rectangular transverse form. The width dimensions of the recesses are less than the thickness dimensions of the annular walls.
Patent GB-361329-A (GB)
Title: Improvements in or relating to gas, air and/or liquid heating apparatus
IPC: F16D23/14
Filed: 1930-08-06
Abstract: 361,329. Stove flue baffles. GAS LIGHT & COKE CO., CLARK, J. G., MASTERMAN, C. A., and NOBLE, T. G., 84, Horseferry Road, London. Aug. 6, 1930, No. 16718/31. Divided on 360,893. [Class 126.] A perforated metallic baffle member of hood shaped or of corrugated form is interposed in the path of the heating gases in apparatus for heating gas, air, or liquid, in order to create a turbulent movement of the gases and prevent the formation of an insulating film on the surfaces of the containers of the medium to be heated. Fig. 1 shows a hood-shaped baffle 5 of rectangular form arranged in the flue formed between vessels 2, 3 containing water &c. to be heated. Gases from the burner 1 pass in part into the member 5 and out again through circular, rectangular or slot-like perforations 6 in its walls. The gases, after passing over the tops of the vessels 2, 3, descend passages formed between their outer walls and the sides of a hood-shaped member 8, after which they ascend between the member 8 and the outer casing of the apparatus to the outlet. The baffle 5 may converge upwardly, and may carry internal fins, ribs, or baffles. A heater having a central flue of circular section containing a perforated hood-form baffle also of circular section is also described. Fig. 3 shows a heater comprising two water chambers 35, 36 with a flue of elongated rectangular cross section between them in which is a baffle formed by a transversely corrugated perforated plate 39. The corrugations may vary in pitch or amplitude, or both, along the length of the plate, and baffling ribs or fins may be provided on the plate.
Patent GB-358878-A (GB)
Title: Apparatus for preventing snoring and the like
IPC: A61F5/56
Filed: 1930-05-30
Abstract: 358,878. Apparatus for preventing snoring. RUNDLE, G. W., 38, Shellons Street, Folkestone, Kent. May 30, 1930, Nos. 16724 and 17162. [Class 81 (ii).] A microphone &c. a responsive to the low frequency sound produced by a person snoring or the like is included in an electric circuit whereby a device is operated to act on some part of the body of the snorer. The device for acting on the body may be a medical induction coil d, Fig. 1, or a pointed armature h of an electromagnet g adapted to be worn on some part of the body, e.g. the wrist. According to the first Provisional Specification an audible alarm may be operated and according to the second Provisional Specification the sound made by the snorer may be amplified, and recording means may be employed in conjunction with the microphone.
Patent GB-1311519-A (GB)
Title: Apparatus and method for aiding formation of bone forming material
IPC: A61N1/40
Filed: 1970-04-08
Abstract: 1311519 Apparatus for stimulating bone growth W KRAUS 8 April 1970 [10 April 1969] 16760/70 Heading A5R Apparatus for the promotion of bone growth comprises at least one pick-up coil 22, 24 or 26 adapted to be implanted in a living body adjacent a bone structure 10, at least one slender electrode electrically connected to, or constituted by a first terminal of the coil and adapted to be inserted into the bone structure, a second electrode connected to a second terminal of the coil and adapted to be positioned in or alongside the bone structure and spaced from the first electrode, and means 42 for inducing in the coil an A.C. current having a frequency below 1000 H2, a low harmonic content, and a magnitude giving a current density of no more than 10 microamperes per square millimetre at the electrodes. In one form, two splint plates 16, 18 of non-magnetic metal are screwed to a fractured bone 10, the plate 10 carrying coils 22, 24, 26 on a magnetic core 20 with one terminal of each coil 22 and 26 connected to plate 16 and the others connected by insulated wires to electrodes 32, 40 in gaps 12, 14 between bone parts. Coil 24 is connected to a metal screw 36 insulated from plate 16 and to an electrode in the bone through a hollow screw 34. A coil 42, external to the body, is connected to an A.C. generator 44 to induce currents of preferably 10 to 30H2 and of current density at the electrodes of preferably 3 to 7 microamperes per square millimeter. The induced current is preferably sinusoidal with a harmonic content of less than 10%. The output of generator 44 may be an A.C. signal at a first frequency with a superimposed modulating signal at a frequency at least three times the first frequency. In alternative embodiments, Figures 2-5 (not shown), a single splint plate may be used with a coil attached thereto or wound in a peripheral groove thereon. A capacitor may be connected in parallel with one coil to form a tuned resonant circuit.
Patent GB-981889-A (GB)
Title: Hard foamed plastics surfacing element
IPC: E04F13/08
Filed: 1961-05-09
Abstract: 981,889. Building slabs. K. KARNER. May 9, 1961 [May 9, 1960], No. 16871/61. Heading E1B. [Also in Divisions B5 and F2] A component to provide a key for the plaster &c. covering of walls and ceilings comprises a layer of hard foamed plastics material 1 to which is secured on one or both sides a ribbed expanded metal sheet 5 the ribs of which fit into grooves 3 in the plastics layer. The sheets provide the key for the plaster or other wall &c. covering and are secured by bitumen or a synthetic binder 4, so that the sheets either rest on the layer 1 or are supported away from it. The binder may be confined to the grooves and squeezes out through apertures 7 in the ribs or is applied as a coating to both the layer 1 and to the sheet. In a component provided with sheets on each of two opposed faces of the plastics layer the ribs of one metal sheet are either parallel and offset, or extend transversely to those of the other.
Patent GB-665323-A (GB)
Title: Improvement in inking mechanism
IPC: B41F31/02
Filed: 1949-06-24
Abstract: 665,323. Printing-machines. HOE & CRABTREE, Ltd., R. June 24, 1949 [June 24, 1948], No. 16886/49. Class 100 (ii). Inking apparatus comprises pump units in each compartment of a partitioned ink reservoir which each deliver through a group of individual conduits in an ink rail having a throat at which the conduits open to apply ink to different longitudinal sections of a distribution drum. As shown an exchangeable aluminium alloy member 13, Fig. 3, clamped by wing nuts 15 onto the flat surface 14 of the casting 10, has grooves 1a connecting passages 1b with wide flat orifices 2 which spread the ink to the required width on an ink drum 3. The passages 1b are similarly formed as grooves in a member 16, and at their inner ends bores 1c form the delivery ports of adjustable pumps of the kind described in Specification 152,657, [Class 100 (ii)]. The ink rail is divided by partitions 12 into compartments A, B ..., Fig. 5, each having its own members 13, 16, pump plate 20 and bar 23, the ends 68 of which are carried eccentrically in gears 65 driven by gears 46 on a hollow shaft 45 free on a driving shaft 40 extending through all compartments; the shafts 45 are each coupled to the shaft 40 by a clutch 47 slidably keyed thereto and operated by a rod 48 extending from a member 50 slidable in a slot 51, a nut 53 being screwed downwards to lock the clutch in engaged or disengaged position, and upwards to couple the member 50 to a solenoid- &c. operated control rod 60 which passes through holes in all the members 50. Each compartment is filled by removal of a cover 33 having a handle 34. Specification 126,815, [Class 100 (ii)], is referred to.
Patent GB-529867-A (GB)
Title: Improvements in or relating to electric gas blast switches
IPC: H01H31/28
Filed: 1939-06-09
Abstract: 529,867. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 9, 1939, No. 16971. Convention date, June 9, 1938. Addition to 487,585. [Class 38 (v)] In order to avoid the entry of rain through the opened contacts and into the switch-arms of the switch of the parent Specification, the arms, together with the quenching heads thereon, are caused to be rotated through approximately 180 degrees from the closed-circuit to the opencircuit position. In Fig. 1, which shows only part of the co-operating pole, the arm 5 and heads 6 are each rotated to the dotted, open position by means of a rack 7 guided in the insulator 2. The arm 5 carries a pinion 10 engaging one set of rack teeth, the other set of which engages a pinion 11, pinions 10, 11 being rigid with the meshing pinions 13, 12, respectively, whereby unbalance in the loading of the rack is avoided. Alternatively each arm may carry a pinion meshing with oppositely-moving racks on either side of it, the racks being coupled below to the ends of a centrally-pivoted rocking- lever, Fig. 2 (not shown).
Patent GB-934450-A (GB)
Title: Improvements in or relating to the isomerisation of hydrocarbons
IPC: C07C2/10
Filed: 1960-05-31
Abstract: Isoprene is obtained by pyrolysing hexenes, particularly 2-methylpentene-2, obtained by isomerizing a hexene, which may be a propylene dimer, in the presence of a lamellar complex of carbon and an alkali metal as described in Specification 934,449.  The pyrolysis is effected at 600 DEG -1000 DEG C. for 0,001-1 second usually in the presence of steam in a mol. ratio to hexenes of up to 10:1. Specifications 840,028 and 841,351 also are referred to.
Patent GB-1383381-A (GB)
Title: Change-speed gear transmission for motor vehicles
IPC: F16H37/04
Filed: 1972-04-13
Abstract: 1383381 Change-speed gear KLOCKNERHUMBOLDT-DEUTZ AG 13 April 1972 [13 April 1971(2)] 17070/72 Heading F2D A change-speed gear for a tractor having an auxiliary group 2, ahead of (or behind) a main group 3, has first, second and third pairs 6, 17, 10 of wheels of which the second pair, 17, forms also, in common, a ratio stage of the main gear, and has a wheel 18 fast to an input shaft 11 of the main gear, said shaft 11 being clutchable at 16 to the main input shaft 1 (or, in Figs. 3 and 4, not shown, to the main output shaft (112 or 133)), or to a wheel 12 freely rotatable on the shaft 11, and the third pair 10 of wheels is arranged between the first and second pairs 6, 17, and composed of said wheel 12 and a wheel 13 which can be clutched by a pin-clutch 21 to a wheel 19 of the second pair 17. The input shaft 11 of the main gear 3 can thus be driven at three ratios and drives the final output 8 at four ratios, using clutches 36, 37 and wheel pairs 17, 27, 28, 29. The ratios provided by the common wheel pair 17 and the additional pair 10, in association with those of the main gear, overlap one another by approximately one ratio of the main group. Reverse is provided by a countershaft 24 with a wheel 25 meshing 9 and a wheel 26 slidable axially to mesh 18. A through power take-off shaft 39 is driven by a selective double input clutch, not shown.  In Fig. 2, not shown, input and output shafts (40, 45, and 43) are coaxial and a power take-off shaft (81), extending through a hollow countershaft (49) of the main and auxiliary gear, is driven at two ratios by an input sleeve (78) concentric with the main input (4) and having two wheel pairs (79, 80) and a double clutch (88). In the auxiliary gear that wheel pair (55) common with the main gear has one wheel fast to the countershaft (49) and one (57) clutchable to either the main input (45) or output (43) by clutches (60, 74), one (74) of which, together with a similar clutch (74a) on the output shaft, provides the four ratios of the main gear. In Fig. 3, not shown, the auxiliary gear (90) follows the main (89), input and output shafts (91, 112) being again parallel, the main double clutches (103) being on the input shaft (91). A two-speed power take-off gear (128), driven by a shaft (127), extending through the input shaft (91), is arranged behind the gear. Fig. 4, not shown, is similar but has a front power take-off two speed gear (153) and coaxial input and output shafts (154, 133).
Patent GB-1046574-A (GB)
Title: A resilient chair
IPC: A47C/
Filed: 1965-04-22
Abstract: 1,046,574. Seats. E. F. HOLMSTROM. April 22, 1965 [April 24, 1964], No. 17094/65. Heading A4U. In a resilient chair having a spring device connecting the pedestal and the seat the spring device serves as the sole connection between the base and seat portions of the chair and comprises two leaf springs A and a cross-piece B connecting the free ends of the lower limbs 1 of the leaf springs. The upper limbs 2 of the leaf springs are connected to the seat portion of the chair and the cross-piece B is connected to the base of the chair, Figs. 3 and 4 (not shown).
Patent GB-165405-A (GB)
Title: Improvements in belt buckle
IPC: F16G3/00
Filed: 1921-06-22
Abstract: 165,405. Scheer Manufacturing Co., Inc., (Assignees of Scheer, G. F.). June 25, 1920, [Convention date]. Clamps, eccentric. -A belt buckle comprises a plate with side flanges 2, 3, Fig. 1, between which is pivoted on trunnions 5, Fig. 2, a gripping- member 4 which has the shape of an involute in cross-section and grips the free end of the belt against the plate, a pin 6 working in a slot 7 in the flange 2 limiting the movement of the member 4. The member 4 has a central portion 10 cut away so as not to grip the belt, the side portions 8, 9 being serrated. The fixed end of the belt is secured between two hinged plates 12, 17, pivoted with oppositely disposed teeth 15, 20 respectively,. the plate 12 having lugs 16 which engage in openings in the upturned ends 18, 19 of the plate 17. The plate 12 also has trunnions 13, 14 by means of which the plates are pivoted between the flanges 2, 3.
Patent GB-110971-A (GB)
Title: Improvements in Floor Scrubbing Machines.
Inventor: DEHN FRANK BERNHARD
IPC: A47L11/282
Filed: 1916-11-29
Abstract: 110,971. Dehn, F. B., (Stewart, E. J.). Nov. 29, 1916. Floors, cleaning.-In a motor-driven floorscrubbing machine, a rotary brush B is carried between the front ends of suspender-plates a which are pivoted at the back on pins f<31> projecting from the frame of the machine. The plates a are adjusted for wear of the brush by means of rods c<1> secured to a cross-bar f<8> which is moved by a rod c<2> provided with a notched handle c<3> engaging a stud upon a spring f<12>. The splashreceptacle c has pins d<2> which are urged by springs g into contact with inclined portions a<1> of the suspender-plates, and the splash-apron d<1> is pivoted to the receptacle and has side flanges which carry studs f<9> pivoted to the frame. The water is supplied from a tank T to a sprinkler S through a funnel i, carried by a rocker arm i<1> to which a spring-pressed valve stem i<3> is fastened; this valve is operated by a bell-crank lever from the control sleeve k mounted on the handle h'. The propelling handles of the machine are formed in parts telescoping in each other against spring action, the arrangement being such that when the springs are compressed in propulsion, the switch for the driving-motor is closed, but is opened as soon as the thrust on the machine ceases.
Patent GB-480352-A (GB)
Title: Electrolytic process and apparatus for the degreasing and/or pickling of sheet or strip metal
IPC: C25F7/00
Filed: 1936-06-20
Abstract: 480,352. Electrolytic cleaning and etching. FOSBURG, H. A. June 20, 1936, No. 17209. [Class 41] Cold rolled ferrous strip metal is passed continuously first as a cathode through a degreasing bath containing sets of grid-like anodes arranged above and below the strip, and then as anode through an etching bath having upper and lower sets of grid-like cathodes. The degreasing bath may contain 3¢ oz. soda ash, 2 oz. caustic soda, ¢ oz. trisodium phosphate per gallon of water. The etching bath may consist of 6 per cent sulphuric acid. In each bath the upper and lower sets of electrodes consist of bars 31, 32, Fig. 3, with convex faces presented to the strip 7 and arranged with small spacing between them and covering substantially the whole length and width of the bath. The upper set of bars is mounted in a frame hinged at 36. The frame carrying the lower bars 32 is provided with insulated rollers 45 to prevent accidental contact of the strip with the bars. The strip 7 passes between a contact roller 54, Fig. 5, connected to insulated bus-bars 57, 58, and a set of loosely mounted rings 53 mounted between pins 52<1> on a rod 52. Specification 473,479 is referred to.