baber/WOPTO huggingface dataset:
Patent GB-822002-A (GB)
Title: Means for controlling operations at variable intervals
Inventor: DAVIES CHARLES WILLIAM
IPC: H01H43/00
Filed: 1954-10-06
Abstract: 822,002. Mechanical make - and - break switches. TRIANCO Ltd. Jan. 5, 1956 [Oct. 6, 1954], No.28834/54. Class 38 (5). A switch operating shaft 24 is rotated stepby-step in one direction by a timing mechanism consisting of a reciprocating arm 10 which moves to and fro over an angle that can be predetermined and actuates a star wheel 23 at one end of its travel. In the form shown in Fig. 1, a motor 1 drives counter-clockwise a sun-wheel 3 of a differential mechanism, the planet-wheels 5 of which are carried by a disc 4 frictionally held against rotation by clutch shoes 8 biased by a spring 9. The result of this is that the other sun-wheel 7 rotates clockwise and carries round with it the arm 10 till a pin 13 of a pawl mechanism carried by the arm 10 engages an adjustable stop 14, whereupon the arm 10 becomes locked to a toothed wheel 15 fixed to the disc 4, and the differential rotates counter-clockwise as a single member till an arm 16 engages a fixed stop 17 freeing the members 10, 15 so that the member 10 again rotates clockwise. Thus the arm 10 moves to and fro through an angle determined by the stop 14. In an alternative " known " form of timing mechanism, Fig. 4, an arm 43 is reciprocated by the alternative engagement of the ends 45, 46 of a pivoted lever with " differential " wheels 41, 42 which rotate in opposite directions, two stops such as 47 being engaged by the lever to cause it to engage the wheels 41, 42 alternately. Two forms of switching devices operated by the timing mechanism are shown in Figs. 1, 2 and 4 respectively. In Figs. 1, 2, the star-wheel 23 rotates the shaft 24 which is geared to a shaft 27 by wheels 28, 29 which rotate in opposite directions The shafts 24, 27 carry blades 30, 31 which by alternately engaging a blade 33 move it to and fro and tilt to and fro a case 32 containing two balls 34, 35. The ball 34 moves between contacts 37, 38 and thus prepares the circuit to one or other of two motors. The ball 35 is delayed in its movement by a ramp and then " momentarily " bridges a pair of contact strips 39 to make the circuit of a starter switch solenoid for the motor, the starter switch being held closed by its own control circuit. In Fig. 4, the star-wheel 49 rotates a shaft 50 through 90 degrees steps, each step moving outward and then releasing one of two pendulums 53, a pin 55 on which engages a flexible lever 56 and momentarily operates a micro-switch to close the circuit of a starter switch.
Patent GB-209517-A (GB)
Title: Improvements in devices for gripping and supporting wires, ropes and the like
IPC: H01B17/22
Filed: 1922-10-24
Abstract: 209,517. Walker, G. Edyvean-, and Walker, N. Edyvean-. Oct. 24, 1922. Cleats.-The entrance passage a of a gripping device for ropes and the like has a substantially straight lower surface and communicates with two oppositely directed mutually inclined lateral recesses e, f into which the wire g enters and is gripped by being automatically bent when the device is partially rotated. The recesses are notched or grooved to prevent accidental release of the wire. The device is turned by engaging a tool with the projections h, i. In the sheet-metal prop-head shown in Fig. 7 the recesses are replaced by the surfaces e<2>, f<2>.
Patent GB-1436580-A (GB)
Title: Striker assemblies for hand-operated staplers
IPC: B25C5/06
Filed: 1973-06-19
Abstract: 1436580 Stapling machines SOC FRANCAISE D'AGRAFAGE INDUSTRIEL 19 June 1973 [28 June 1972] 29045/73 Heading B4C A striker assembly for a hand-operated stapler comprises a striker plate 4 integral with a housing 5 for a spring 6, and means 7 for moving the striker plate to drive staples 2 into an article. As shown in Fig. 2, the striker plate 4 and housing 5 may be produced by bending a soft steel blank, one of the walls being provided with openings 8 for receiving catches of the loading lever 7. When the lever completes its movement, the housing is released from the catches and spring 6 relaxed to project the striker plate downwards. (For Figures see next column.)
Patent GB-1501219-A (GB)
Title: Hub locking arrangement
IPC: F04D29/20
Filed: 1975-07-10
Abstract: 1501219 Securing hubs on shafts; locking nuts ALLIS-CHALMERS CORP 10 July 1975 [24 July 1974] 29069/75 Headings F2U and F2H A hub 7 is secured on the end of a shaft 11 by means of interengaging screw-threads 9, 12 of the hub and shaft and by means of a stud 17 which has a tongue 18 engaged in a groove 13 at the end of shaft 12, has a flange 19 which engages a shoulder 16 of the hub 7 and has a screw-thread 21 of opposite hand to screwthread 19, a nut 22 on screw-thread 21 engaging the hub 7. The arrangement prevents unscrewing of the hub 7 on shaft 12 due to transmitted torque. The hub 7 supports a pump impeller 6.
Patent GB-1210351-A (GB)
Title: Improvements in fork lift devices
Inventor: SELWAY LIONEL HENRY
IPC: B66F9/06
Filed: 1966-07-29
Abstract: 1,210,351. Fork lift devices. L. H. SELWAY. 30 Oct., 1967 [29 July, 1966], No. 29128/66. Heading B8H. A fork lift device adapted to be detachably mounted on the front of a lorry 1 comprises a mast assembly amounted on a transverse beam which is supported on steerable or castor wheels 11 and which is connected by pivoted links 4A, 4B to brackets 6 on the front axle 3 of the lorry. The mast assembly is adapted to be raised from the ground by hydraulic rams 24. A fork-supporting frame 21 is pivotable about an axis 20 on the lifting carriage by hydraulic rams 23.
Patent GB-927551-A (GB)
Title: Etching composition and method
IPC: C23F1/42
Filed: 1961-08-14
Abstract: Printing-plates suitable for being etched are composed of zinc substantially free of lead, cadmium and iron, and containing 0.1% aluminium and 0.05% magnesium.  In a modification the plates are composed as follows: .0 to 0.5% aluminium .0 to 0.15% magnesium .0 to 0.01% iron .balance zinc substantially free from .lead and cadmium
Patent GB-297588-A (GB)
Title: Improvements in stranding or braiding machines
IPC: D04C3/00
Filed: 1927-11-02
Abstract: 297,588. Riva, S., and Pron, M. Nov. 2, 1927. Machines for making. -In a machine of the type comprising inner and outer sets of bobbins rotating in opposite directions, the movement of the guides of the outer bobbins for passing the threads or other material under and over the threads of the inner bobbins is controlled pneumatically. The outer bobbins 3 are mounted upon the outer face of a rotating disc 1 within the bottom of which are provided cylinders 37 in which plungers 38 are moved by compressed air to actuate the thread guides 48 of the outer bobbins, the plungers 38 being all connected to a ring 40 which when depressed operates levers 43, 44, Fig. 2, to move the thread guide 48 in the path of slots 50 provided in the disc 1. The inner bobbins 6 are slidably mounted in an annular slot 5 in the inner face of the disc 1 and are rotated in opposite direction by levers 64 carried by an inner disc 7 which is rotated in opposite direction to the disc 1. The levers 64, of which alternate ones are cranked. are oscillated about their pivots 72, carried by the disc 7, by means of flanged plates 61, 62 which are moved axially by compressed air, pneumatically actuated by plungers 67 being secured thereto; each bobbin 6 is engaged by a pair of adjacent levers 64 so that as the thread of the outer bobbin passes beneath the bobbin 6 and as each lever comes into register with the slot 50 it may be depressed to provide a space beneath the bobbin through which the thread can pass. The compressed air is fed by means of a pipe 31 and holes 29 to the interior 28 of a hollow shaft 13 which carries the disc 7 and about which,the disc 1 rotates, and is led to the hollow interior 34 of the disc 1 by means of a pipe 33 and hollow ring 32; from the hollow ring 32 the air is fed by means of apertures 36' in the ring to a pipe 36 leading to each cylinder 37; air is fed beneath the plungers 67 from the space 34 through apertures in the discs 1, 7.
Patent GB-634463-A (GB)
Title: An improved process for the manufacture of thiourea
Inventor: COURTIER ARMAND JEAN
Filed: 1947-11-04
Abstract: Thiourea is produced by introducing free cyanamide dissolved in a solvent which is not miscible with water in all proportions into an aqueous solution of hydrogen sulphide.  The non-aqueous solvent may be a pure solvent such as ethyl acetate or butanol or a mixture of solvents, e.g. a propanol-benzene mixture.  It is advantageous to effect the reaction in the presence of a base, particularly ammonia. The reaction is preferably effected at between 30 DEG  and 60 DEG  C. and may be carried out at atmospheric or other pressure.  If hydrogen sulphide is used alone it is preferred to operate under pressure but the reaction may be effected at normal pressure in the presence of a sulphide.  The process may be carried out continuously or in an intermittent manner.  In an example, a commercial solution of ammonia is saturated with hydrogen sulphide, the temperature not being allowed to rise above 50 DEG  C. and into the resulting solution a solution of free cyanamide in ethyl acetate is introduced while at the same time a stream of hydrogen sulphide is introduced into the aqueous solution at such a rate that the hydrogen sulphide does not escape as gas from the reaction vessel.  The reaction temperature is maintained at 45 DEG  to 50 DEG  C.  The mixture which comprises a solution of ammonium sulphide and thiourea is then cooled to allow the thiourea to crystallize and the non-aqueous layer is decanted. The thiourea is recovered from the aqueous layer by filtration and may then be purified by washing with alcohol.  The mother liquor which is saturated with thiourea is used as the aqueous reaction medium in a fresh operation.
Patent GB-135851-A (GB)
Title: Improvements in or relating to Locks.
Inventor: DURET PIERRE
IPC: E05B59/00
Filed: 1919-11-25
Abstract: 135,851. Duret, P. April 15, 1918, [Convention date]. Night latches.-A latch and lock is arranged so that the bolt can be shot by a turn of the key in one direction and the latch withdrawn by a turn in the opposite direction. The latch b is formed on a frame c slidable in the casing a and fitted with an operating knob e and an actuating spring d. The bifurcated bolt f embraces the latch and projects from a slide h slidable in the frame c and constituting a plate provided with an aperture of the shape shown in Fig. 1. A plate h<1> apertured as shown in Fig. 2 is laid over the plate h against a rib i thereon. The apertured plates are operated by pins t, t<1> extending between disks r, r<1>, Fig. 5, mounted in the lock casing and recessed for actuation by keys, the plate r being furnished with a curved rib s engaging the aperture in the plate h. Operation of the disks in a clockwise direction, Fig. 1, causes the pin t to engage the slot p, Fig. 2, in plate h<1> and slide that plate and the frame c to withdraw the latch, the plate h and bolt being retained against movement by the rib s. Rotation contra-clockwise causes the pin t<1> to engage the slot p<1> in plate h<1> and advance this, which through ribs i advances the plate h to shoot the bolts f. Keys; wards.-The Specification as open to inspection under Sect. 91 (3) (a) describes also a key i, Fig. 6 (Cancelled), which is passed through a keyhole plate m and is formed with a stud l to engage one of the disks. A flanged cup n freely mounted on the disk constitutes a ward for the key, and preferably carries a stem to enter socketkeys. The curved rib s may be replaced by a series of studs. This subject-matter does not appear in the Specification as accepted.
Patent GB-1130990-A (GB)
Title: Process for the manufacture of refractory articles
Inventor: FLOOD HAKON
IPC: F27D1/00
Filed: 1967-06-26
Abstract: 1,130,990. Sintered silicon carbide. NORGES TEKNISK NATURVITENSKAPELIGE FORSKNINGSRAD. June 26, 1967 [Dec. 24, 1966], No. 29445/67. Heading C7D. A sintered refractory article of silicon carbide is made from a powder mixture of silicon carbide, silicon and calcium silicide and/or a calcium silicon nitrogen compound which is heated to above 1250‹C. in an atmosphere containing nitrogen and oxygen such as air or nitrogen and carbon dioxide, so as to form a binder of silicon oxynitride Si 2 ON 2 . Alkaline earth metal fluorides such as CaF 2  may also be added in minor amounts and the calcium silicon nitrogen compounds added are Ca (SiN) 2  or CaSiN 2  which are formed by heating CaSi 2  in nitrogen at 900‹-1200‹C. The dry mixture may be wetted with 4-5% of a 50% aqueous solution of a waste sulphite liquor and the compacted mixture is heated rapidly to 1350‹-1450‹C.
Patent GB-364568-A (GB)
Title: Electric discharge tubes
IPC: H01J35/16
Filed: 1930-10-02
Abstract: 364,568. Discharge apparatus. SIEMENS-REINIGER-VEIFA GES. FœR MEDIZINISCHE TECHNIK, 58, Mohrenstrasse, Berlin. Oct. 2, 1930, No. 29543. Convention date, Oct. 24, 1929. [Class 39 (i).] High tension high vacuum discharge tubes such as X-ray, rectifying and cathode ray tubes and oscillation generators are protected against rupture by electric discharge b y t h e provision of a jacket space formed by an intermediate tube 6 at their most endangered parts, e.g. the discharge space, the tube 6 being attached to the main tube at the anode end 7 and d extending beyond the cathode 3 to form an open end flared so as to leave a small clearance with the wall of the tube. The jacket space is thus in communication with the discharge space through an opening of such position size and nature as to prevent the passage of electrons to the jacket space. In the application to X-ray tubes, a metal sheath may be arranged inside the tube 6 to surround the discharge space to protect the tube from bombardment. The outer tube 1 may be surrounded by a metal ring 10, Fig. 3, having a window 11 for the emission of X-rays and this ring may be secured to the supporting stand and earthed. In addition, the anode and cathode necks may be protected against undesired radiation by surrounding them with cylinders of insulating material mixed with heavy metal compounds and glazed. In place of these cylinders the inner tube 6 may be of lead glass having a gastight insulating window.
Patent GB-909319-A (GB)
Title: Solderable composite aluminium wire
IPC: B21B3/00
Filed: 1960-08-26
Abstract: 909,319. Making composite wire. REYNOLDS METAL CO. Aug. 26, 1960 [Sept. 17. 1959], No. 29555/60. Class 83 (2). A process for the manufacture of a zincclad aluminium wire comprises rolling a rod from a composite blank formed from an aluminium ingot having zinc cladding metallurgicallybonded by pressure to at least one exterior surface thereof and thereafter drawing said rod through at least one die to wire dimension. In an embodiment a zinc clad aluminium sheet produced by the method disclosed in Specification 885,744 is rolled to the desired thickness, e.g. 0.1 to 0.3 inch and slit into a number of strips of between 0.5 and 3 inches wide. The strips are next rolled into cylindrical rods in a series of passes through a rolling mill, Figs. 1, 3 and 4. The rolled round or semi-round rods are drawn through a series of dies to the desired wire form, Figs. 9 and 11. The zinc-clad aluminium wire 10 can be readily soldered to a metal body 50, Fig. 18, by interposed solder material 52. The zinc coating 12 may be 99.99% pure or alloyed with up to 0.15% titanium; up to 0.5% manganese or up to 15% aluminium. The thickness of the cladding is between 0.05 and 40% of the wire diameter. U.S.A. Specification 2,987,814 also is referred to.
Patent GB-248488-A (GB)
Title: New or improved means for swivelling head lamps on steerable vehicles
IPC: B60Q1/124
Filed: 1924-12-09
Abstract: 248,488. Wakfer, W. H. Dec. 9, 1924. Vehicle lamps, directing.-In means for directing vehicle lamps from the steering-gear, a constantly-tensioned flexible member a is connected at its ends to upright pins or pillars erected on steering-gear parts and is adapted to move idly in connection with a lamp swivel in one direction of steering and to engage the lamp swivel for turning the lamp in the opposite direction of steering. In one form, the rotatable lamp stemsk carry slotted arms m through which passes a member s, connected to pillars u, mounted adjustably on slotted brackets v on the steering arms d, and comprising a spring t and two beads w or the like engaging normally the inner edge of the arms m. The latter are held yieldingly in, and returned to, the normal position against stops o by a spring connection p of the kind described in Specification 237,097 and secured in perforations n in the arms or by springs acting on the stems k or on the arms. The amplitude of swivelling motion is varied by adjustment of the pillars u or by inserting pins in the perforations n to vary the distance of the member s from the stems k. When the steering-rod s is behind the front axle a, the arms m are reversed in direction, the beads w bear against their outer edges, and the connection p, which may comprise a central spring only, is connected to forward projections on the arms. In a modification, each lamp is operated by a separate member s, Fig. 3, connected to upright pins or pillars on clips x, on the steering-rod e, the arm m being inclined. The clips x may comprise a plate y, Fig. 4, carrying a grooved pillar z to which the member s is secured at the desired height by rubber or other rings 2. The member s comprises a preferably double coiled spring t, which may be enclosed in a telescopic, or a flexible, casing 3. The arms m may be perforated or fitted with eyes or hooks, instead of being slotted, to receive the member s. When the lamps are not required to swivel, the members s are disconnected from the pillars u, z, and attached to a fixed part of the vehicle.
Patent GB-606906-A (GB)
Title: Improvements in or relating to ozonisers
IPC: C01B13/11
Filed: 1945-11-06
Abstract: 606,906. Ozonizers. McCLELLAND, N. E. Nov. 6, 1945, No. 29593. [Class 39 (i)] An ozonizer of the kind comprising flat dielectric sheets b3, for example of mica, disposed alternately with wire mesh electrodes b4, for example of aluminium, stainless steel or other metal or alloy, has each wire mesh electrode b<4> constructed in the form of a flattened ellipse or a figure having parallel sides and semicircular ends and an approximately cylindrical tube b<5> of wire mesh in its centre. Each wire mesh electrode is about half an inch shorter and half an inch narrower than the adjacent mica sheets and has about one-eighth of an inch between the strands. The wire mesh electrodes b<4> and the mica sheets b<3> are under compression in a metal box b<2> open at both ends, having one side b<21> detachable and having a slide b<1> engaging a guide a<1> on the case A. The first, third and fifth wire mesh electrodes b<4> are electrically connected with the box b<2> by a metallic connector insulated by a surrounding tube of glass (not shown) and the second and fourth wire mesh electrodes are connected by a metallic stirrup b<6> carried in a socket b<7> connected to a high alternating potential of about 2000 to 6000 volts. The high alternating potential can be supplied from a low alternating source by the use of a transformer C, the primary circuit of which incorporates a variable resistance controlled by the knob d<1> for varying the ozone output. Air or pumped oxygen enters the bottom of the case A at the inlets E, El and is drawn upwards over the ozonizing elements by the heat generated by the transformer C or by an electrically driven fan, the ozone generated passing out of the case through a grille F.
Patent GB-966751-A (GB)
Title: Constructional assemblies of interlocking sections and door constructions embodying the same
IPC: E06B3/70
Filed: 1960-08-26
Abstract: 966,751. Wagon doors; sides, floors and roofs. REYNOLDS METALS CO. Aug. 26, 1960 [Nov. 27, 1959], No. 29603/60. Headings B7B and B7L. [Also in Division E1] A freight car door is made up of a plurality of interlocking panels, each panel 130, Figs. 1 and 2, being of extruded metal section and having a substantially plane surface 134 on one side, each longitudinal edge portion of the panel having a channel-shaped configuration 138, 140, 146 and 132, 156, 158, the edge portions of adjacent panels being complementary, whereby when two panels are partially engaged and in tilted positions with respect to each other as shown in Fig. 2, they may be relatively rotated so as to snap into interlocking engagement, which thereafter prevents relative rotation in the opposite sense. Each panel has an intermediate stiffening rib 136. Referring to Fig. 2, one side wall of one channel has an inwardly facing convexly-curved lip 146 merging into an undercut portion or rounded groove 152, whilst the other side wall 160 has an inwardly facing rounded ridge 142 provided with a step 144. The complementary channel of the adjacent panel has in one side wall an external groove provided with a flat wall 164 and a concave surface 162 terminating in a nose portion 168 whilst the other side wall 158 has a squared-end 160. After initially engaging the lip 146 in the groove 162 with the two panels tilted with respect to each other, the panels are relatively rotated until the side wall 158 rides up over the ridge 142 to interlock the end 160 with the step 144, whilst the nose 168 is engaged in the undercut portion 152. One or the other of the sections yields slightly to permit the interlocking. In another embodiment, Figs. 6 and 7, the two complementary channel sections together form a hollow box-section beam. As shown in Fig. 7, the channel of one edge portion is formed by an inwardly facing lip 218, an undercut 222 and by an inwardly facing concavely-curved surface 226, whilst the complementary channel has an external groove 220 and a convex surface 232. The interlocking of the panels is effected by a ridge 240 or an extension 216, 236, 238 of the first channel engaging a ridge 250 on an extension of the other channel until a step 242 snaps behnid a stop 248. Interlocked panels as described above may form corner structures as described with reference to Figs. 4 and 5 and 14 (not shown).
Patent GB-611414-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R21/02
Filed: 1945-11-06
Abstract: 611,414. Microphones. WIGAN, E. R. Nov. 6, 1945, No. 29607. [Class 40 (iv)] In a carbon granule microphone in which the granular material surrounds the electrode assembly, a conical moving electrode 8, Fig. 1, formed as part of the diaphragm 2, is embraced by a conical fixed electrode 10 slotted to form spaced fingers 12 and having a cavity 13 at its apex. The granular material may pass between the fingers of the fixed electrode to fill the inter-electrode space in all positions of the microphone, the cavity 13 providing a supply of granules when the microphone is turned on its face. The granules are retained in place by silk washers 14 and are insulated from the metal case 1 and parts of the electrodes other than their opposed conical surfaces by covering such parts with insulating paint. An alternative form of fixed electrode shown in Fig. 2 comprises a hollow cylindrical member with fingers 22 bent down into conical formation.