baber/WOPTO huggingface dataset:
Patent GB-1243428-A (GB)
Title: Methods of making relays
Inventor: YOUNG LEITH BRIGGS
IPC: B23K28/02
Filed: 1969-02-27
Abstract: 1,243,428. Thermal relay. TEXAS INSTRUMENTS Inc. 27 Feb., 1969 [12 April, 1968], No. 10620/69. Heading H1N. In a motor protection thermal switch responsive to an overload current, a thermally responsive snap-action member 50, Fig. 2, carrying a contact 54 at one end, is mounted at its other end on a rigid electrically conductive heater element 32 by means of an angled bracket 42 having a flange 44 extending out of the plane of the member 50 and welded to the heater element 32. The arrangement is such that distortion of the heater element 32 or bracket 42 caused by the weld 46 does not affect contact spacing of the preset assembly. Prior to welding the flange 48 of the bracket 42 is pressed against a projection 39 on the heater element 32 and rocked to give the preset distance between a backing stop 38 and the face of the contact 54. The heater element 32 has a flanged end 34 welded at 35 to a conductive base 12 and is assembled prior to welding with its backing stop 38 set at a predetermined distance a from a datum position. The arrangement is such that distortion of the flanged end 34 due to the weld will not move the backing stop 38 out of the plane at the preset distance a from the datum line. The fixed contact 30 is mounted on a rigid flanged support 20 welded at 24 to a central terminal 16 which is sealed in insulating material 18 in the base 12. The arrangement similarly ensures that with distortion of the flange 22 due to the weld 24 the contact 30 remains substantially in the plane at its preset distance d from the stop 38.
Patent GB-593159-A (GB)
Title: Auxiliary pneumatic press for inlaying and veneering pieces of wood
IPC: B44B9/00
Filed: 1945-04-27
Abstract: 593,159. Fluid-pressure presses. BURNER, F. SUFFERT-. April 27, 1945, No. 10651. Convention date, April 13, 1944. [Class 122 (iii)] [Also in Group VIII] Wood pieces to be inlayed or veneered are placed in a work chamber 9, which is formed by a lower plate 7 of a press, an auxiliary frame 1, and a flexible and pressure tight sheet 5 clamped between an auxiliary frame 1 and a main supporting frame 2, and pressure is applied to the work pieces through the sheet 5 by admitting compressed air to chamber 10 which can include a heating device 16. A chamber 11, similar to chamber 9 may be provided as shown between the main frame 2 and the upper press plate 8. Specification 313,307, [Class 122 (iii)], is referred to.
Patent GB-331849-A (GB)
Title: Improvements in or relating to paper or like sheet feeding mechanism
IPC: B65H9/16
Filed: 1929-04-06
Abstract: 331,849. Dawson, J. C., and Camco (Machinery), Ltd. April 6, 1929. Sheet-registering devices; sheet-carriers.-In a sheet-registering and forwarding table for folding, printing, or other machines comprising a series of parallel driven rollers and a side-guide, sheet-influencing members adjustable relatively to the side-guide are provided to regulate the travel of the sheets towards the side-guide. In one form, Figs. 2 and 8, the rollers 12 are arranged perpendicularly to the side-guide 15, which is adjustable on crossbars 11 fixed to the main frame 10. The guide 15 consists of a vettical plate shaped to fit over the rollers 12 and having angle-bars 19 fixed on each side to prevent buckling of the sheets. A bar 20 fixed adjustably to the bars 11 by means of engaging-jaws 21 and set-screws 23 carries a number of adjustable brackets 26 each having mounted therein a disc 30 which is adapted to bear on the sheet just above or slightly displaced from the axis of the roller 12 beneath it. When the bar 20 is inclined to the guide 15, the discs 30 co-operate with the rollers 12 to feed the sheets forward and register them against the side-guide 15. By moving the guide 15 and suitably adjusting the bar 20 the mechanism may be used for registering sheets at the opposite side of the table. In a modification, Fig. 10, in which the feed rollers 42 are arranged obliquely to the side-guide 69 and balls 53 are employed in place of the discs 30, a plate 61 slotted to receive the balls 53 has fixed thereto steel blocks 64 slotted to fit over projecting lips 70 on the existing side-guide 69 and be adjustably secured thereto by a set-screw 66. In another form, brackets 77, Fig. 11, adapted to hold the balls 53 are adjustably mounted on a rod 76 fixed by set-screws 75 to members 72 adjustably secured to the side-guide 44 which is mounted on the feed-table by means of screw fittings 48. The balls may be of steel or other suitable material or may be of differing materials so as to space the sheets as described in Specification 281,599.
Patent GB-383175-A (GB)
Title: Improvements in or relating to presses, stamping machines and like machine tools
IPC: B30B1/26
Filed: 1932-04-14
Abstract: 383,175. Mechanical presses. SCHMIDT, W., 14, Burg Strasse, Erfurt, Germany. April 14, 1932, No. 10726. [Class 87 (ii).] The continuously-running toggle driving- gear of a mechanical press is rendered non- effective between pressing strokes. In the illustrated form the tool holder or pressing- member 5 is coupled to its driving crank shaft 2 through toggles 6, 8, which when the machine is to run idle are moved to dotted line position 15 by turning a valve 17 to move the piston 15 to the left, while air or liquid pressure on pistons 26, 27 or equivalent springs maintains the tool holder at the top of its stroke. In working position the toggles are moved to nearly straight line position by the piston 15 (the stops 12 abutting to prevent movement past the dead centre position) so that the crank 2 reciprocates the tool notwithstanding the pressure on the pistons 26, 27. The cylinder 16 is pivoted at 19 to accommodate itself to the various toggle positions.
Patent GB-1241121-A (GB)
Title: Improvements relating to the manufacture of thick film circuit elements
Inventor: NAYLOR RONALD
IPC: H01C17/065
Filed: 1969-02-28
Abstract: 1,241,121. Resistance elements; printed circuits. FERRANTI Ltd. 27 Feb., 1970 [28 Feb., 1969], No. 10731/69. Headings H1R and H1S. A process of manufacturing a thick film circuit element comprises applying an adherent layer of photo-resist material 12 to a plane surface 11 of a laminar ceramic substrate, forming apertures 13 in the photo resist layer corresponding to the required element profile by known methods (e.g. photolithography), applying a paste 14 of the thick film material on to the substrate through the apertures and in the required sequence removing the photo resist mask, hardening the paste and bonding the element to the substrate. The element paste which may be applied manually 15 or screen printed on to the substrate includes a binder such as a glaze in its composition. The resist material may be removed by stripping or by a solvent. Where the element is bonded to the substrate by the glaze the resist material may be removed when the element is fired at a high temperature. The sheet of photo resist material (e.g. " Riston " (Registered Trade Mark)) has a minimum thickness of 0À001 inch. By increasing the thickness of the resist or using multiple layers circuit elements of different thicknesses can be made. An initially-liquid photo-resist material may be used to obtain the required thickness.
Patent GB-661705-A (GB)
Title: Improvements in electric circuit arrangements for operating electric discharge lamps
IPC: H05B41/391
Filed: 1949-04-22
Abstract: 661,705. Control systems for space discharge lamps. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. March 31, 1950 [April 22, 1949], No. 10764/49. Class 38(iv). Dimming of a discharge lamp 7 supplied through a stabilizing condenser 9, is effected by a variable inductance 15 shunted across and/or a variable inductance in series with the condenser of limiting values such that the ballast is always predominantly capacitative. Variation of the inductance may be effected by tapping the winding or adjusting the core position but preferably by energization of a control winding 16 with direct current. To obtain simultaneous adjustment of a lamp 24 supplied through an inductive ballast 26 the latter may comprise a saturable choke, the control windings 31 and 16 being supplied through the tapping 34 on a potentiometer resistance 35 so as to obtain automatic decrease in saturation of one choke with increased saturation of the other. Alternatively, this latter requirement may be effected by providing a constantly energized biassing winding on one choke whilst the two control windings are supplied in series with the variable control current, Fig. 3 (not shown). The sensitivity of the control may be increased by providing a feed-back winding on the choke, energized in accordance with the lamp current.
Patent GB-610916-A (GB)
Title: Improvements in motor-cycle wind-shields
IPC: B62J17/04
Filed: 1946-04-09
Abstract: 610,916. Motor-cycle wind-shields. COMISKEY, A. T. April 9, 1946, No. 10892. [Class 136 (i)] A motor-cycle wind-shield comprises a transparent, curved screen 7, a brace 8 extending across and secured to the back of the screen adjacent the middle portion thereof, a pair of supporting rods 14 having relatively offset upper and lower portions 16 and 17 respectively, the lower portion 17 being vertically and rotatably adjustable in a pair of clamps 21 mountable on opposite sides 4 of a motor-cycle handle-bar structure, and a pair of bosses 12 extending rearwardly from the brace 8 on either side of the screen 7, each having an opening with its axis parallel to the plane of the screen adapted to receive the upper end portion 16 of one of the rods. A brace 6 may be provided, welded to the side 4 of the handle bars for the attachment of the clamps 21.
Patent GB-869508-A (GB)
Title: Process for treating platinum catalyst containing absorbed hydrogen and carbonaceousmaterial
IPC: B01J23/96
Filed: 1959-04-01
Abstract: A platinum catalyst containing adsorbed hydrogen and carbonaceous material is regenerated by treating with (1) a regeneration gas containing 0.2-2% (preferably 0.2-1%) by volume of oxygen at 400-600 DEG F. (preferably 450-575 DEG F.) for 10-360 (preferably 15-140) minutes, (2) an oxygen-containing gas, preferably of the same volume % coiled of oxygen as in (1), under preferred conditions of 650-850 (particularly 700-800)  DEG F. for 1-60 (particularly 1-48) hours, and preferably with (3) a rejuvenation gas containing oxygen with a partial pressure of 5-200 (particularly 14-50) p.s.i.a. for a period of up to about 10 (particularly 1-8) hours, and especially at 950-1050 DEG F. Preferably the gases used in (1), (2) and (3) each contain not more than about 2% by volume of water.  It is stated that in stage (1) the absorbed hydrogen is selectively burned, and in stage (2) the carbonaceous material is removed.  In the example the catalyst regenerated is platinum/alumina; other carrier materials mentioned generally are silica, silica-alumina, zinc spinel, activated charcoal, pumice, kieselguhr, magnesia and alumina-boria.
Patent GB-545113-A (GB)
Title: Improvements relating to packings, wrappings or containers suitable for the reception of small articles such as tablets and pills
IPC: B65D75/54
Filed: 1941-09-01
Abstract: 545,113. Boxes; packing tablets &c. TAGAN, C. W., and STABLOND LABORATORIES, Ltd. 'Sept. 1, 1941, No. 11137. [Classes 18 and 94 (i)] Tablets, pills &c. are packed in an inner container b which is enclosed in an outer sleevelike element a of transparent or translucent material and the ends f of the element a extend ing beyond the container b are pressed together so that their inner surfaces adhere ; one end of the element a may be opened by pushing the container along it until the container is forced through the end. The container b may be formed from a blank having the side .and ends folded over the contents to leave an opening through which the contents c may be viewed.
Patent GB-1170601-A (GB)
Title: Improvements in or relating to Evaporators
Inventor: USHER JOHN DENNIS
IPC: B01D1/22
Filed: 1966-03-15
Abstract: 1,170,601. Evaporators, multi-plate type. A.P.V. CO. Ltd. 23 Jan., 1967 [15 March, 1966], No. 11232/66. Heading BIB. In an evaporator comprising a pack of heattransfer plates, clamped in a frame, wherein liquid-to-be-evaporated flows up and down through alternate passages between the plates and heating-medium such as steam flows through the other passages, the plates are divided into two groups P 1 , P 2  by a partition or grid G having an aperture X through which steam, supplied through header L, can flow from plate-group P 1  to plate-group P 2 . The feed liquid is introduced through conduit A into group P 1 , and the mixture of vapour and partial concentrate, formed within this group, flows through port Z to cyclone separator S. The separated partial concentrate is pumped to the inlet C of plate-group P 2 . The mixture of vapour and final concentrate is drawn into the port Z in grid G where the final concentrate collects in sump D, and is withdrawn at J. The vapour flows on to separator S. In a modified manner of use, the feed liquid is introduced at C, the partial concentrate is removed from sump D, and then re-introduced at A. The plates may be divided into more than two groups by adding further grids to the assembly. The grid, or grids, may be moved along the frame on rollers R.
Patent GB-750236-A (GB)
Title: Improvements relating to control of electrically driven mine winders, hoists, and the like
Inventor: EVANS OWEN THOMAS
IPC: H02P7/34
Filed: 1953-04-23
Abstract: 750,236. Automatic speed control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 2, 1954 [April 23, 1953], No. 11256/53. Drawings to Specification. Class 38 (4). [Also in Group XXXVII] In an electrically driven hoist having a manually controlled speed adjusting rheostat, an automatic control system is arranged to correct any error between the actual speed and the desired speed set by manual adjustment. Several embodiments with suggested modifications are described as applied to a Ward- Leonard drive : (i) the control lever H operates a speed-control rheostat R (in series with the Ward-Leonard generator field F) and a reference potentiometer P, the error signal comprises the difference between the reference voltage and the voltage of a tacho-generator TG driven by the motor. The error signal may : (a) energize relays RL1 ... RL3 according to its magnitude to short out sections of the control rheostat, Fig. 1 (not shown); (b) control a Tirrell type field regulator, Fig. 4 (not shown); (c) energize a torque motor TM connected to a differential Selsyn DS in a Selsyn link ST, RS, between the control lever and the rheostat; (d) energize a torque motor TM to move the drum of the control rheostat relative to the contact arm (operated by the control lever), Fig. 9 (not shown); (e) differentially energize the fields of an exciter MG, Figs. 10, 11 (not shown) ; (f) control a magnetic amplifier to energize an auxiliary field or to boost the generator field supply, Figs. 12, 13 (not shown). (ii) Contacts are operated in accordance with the difference in movement of a cam CM connected to the control lever and a centrifugal governor G driven by the motor: (a) the governor and the cam may act on opposite ends of a lever to operate sequentially-closing contacts, Fig. 2 (not shown); (b) the cam may move contacts which sequentially engage with a governor operated contact, Fig. 3 (not shown); (c) the governor operated contact may be oscillated by a continuously driven cam RCM to provide a " variable on/off period " type of control, Fig. 6 (not shown); (d) the governor may act on the knee joint of a togglelinkage to vary the effective length of a pushrod, Fig. 7 (not shown).
Patent GB-513554-A (GB)
Title: Improvements in the production of multi-colour photographic pictures
IPC: G03C7/20
Filed: 1938-04-13
Abstract: 513,554. Colour photography; reversal processes. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). April 13, 1938, No. 11363. Convention date, April 13, 1937. Addition to 486,496. [Class 98 (ii)] The step of removing the silver after the first development in the process described in the parent Specification is modified by employing a ferric salt which does not affect the sensitizers in the layers. In the treatment of a bipack having a non-sensitized layer on the front film and a green sensitive layer and a red sensitive layer on the rear film, the rear film is developed, and the silver dissolved out with an acid solution of a ferric salt, e.g., containing iron ammonium alum and sulphuric acid. The succeeding treatment is as described in the parent Specification. The method is also applied to a material having three superimposed layers.
Patent GB-591254-A (GB)
Title: Improvements in and relating to supporting means for conveyor rollers and for similar purposes
IPC: B65G39/10
Filed: 1945-05-04
Abstract: 591,254. Endless-belt conveyers. STOTHARD, W. H., and NEWBIGGIN COLLIERY CO., Ltd. May 4, 1945, No. 11364. [Class 78(i)] In means for supporting belt-carrying rollers of the kind in which the rollers are mounted on sleepers, each sleeper, a is mounted on a side frame b, c provided with cover straps d, e to receive its ends, the straps being so designed that the ends of the sleeper can be inserted in them or removed without -disconnecting the straps from the frames. The strap d has a closed end and is a snug fit for the sleeper end. The strap e is open at each end and is of sufficient height to permit the raising of the sleeper end to disengage one or more pins h thereon from holes in the top g of the frame.
Patent GB-113763-A (GB)
IPC: A44B1/24
Abstract: 113,763. Elliott, W. E. Nov 25, 1916. Buttons.-A metal eye is secured in a button by inserting the shank 7 of the eye 5 and a metal plug 8 into opposite ends of a hole h, which extends through the button, and connecting the abutting surfaces of the shank and plug together by electric welding. The outer end of the hole h is countersunk to receive the head of the plug 8. Specification 109,542 is referred to.
Patent GB-179797-A (GB)
Title: Improvements in or relating to propellers for use in aeroplanes
IPC: B64C11/36
Filed: 1921-04-20
Abstract: 179,797. Davies, N. E. April 20, 1921. Screw propellers.-In variable-pitch propellers having a differential actuating-gear, the propeller blades are adapted to be controlled by hand and by a centrifugal governor. The blades 6 are carried by axles 5 mounted tangentially on the boss 2 keyed to the propeller shaft 1, which has an exten sion 7. Freely mounted on the shaft 7 is a worm-wheel 11, the boss of which is screwed at 10 and engages a nut 14 capable of sliding on its driving-key 15. This nut is connected by links 18, 19, 21 with lugs 23 on the propeller blades so that rotation of the worm gear 11 relative to the shaft results in movement of the nut 14 and consequent adjustment of the blades. The worm-wheel 11 meshes with the worm 53 which is connected by shafting 49, 52 and bevel-wheels 50, 51 and by a worm 48 with a worm-wheel 46 forming part of a differential gear. This gear comprises pinions 27 freely mounted on axles 25 carried by the propeller boss 2; the pinions 27 mesh with pinions 30, 37 freely mounted on the hub, the pinion 37 having an extension piece carrying the worm-wheel 46. Both pinions 30, 37 have flanged peripheries 32, 38 in which are mounted hand-brake members 33, 40 capable of actuation from a hand control 77. When one or other band brake is put on, the differential gear drives the worm 46 and in turn the wheel 11 with consequent adjustment of the blades. The band brakes are adjusted by right and left handed screws 55, 56 connected by arms 58, 59 to a rod 63, an extension 64 of which is screwed into a nut 65 carrying a collar 66. Sliding on the rod 64 are collars 68, 70 with springs 71, 72. The collar 68 is connected to a disc 73 which has a shaft 75 screwed into a nut 76 adapted to be rotated by the handle 77. A second control is effected by the centrifugal ball governor, the balls 80 of which are under spring control 81 and are connected by crank levers 83 and rods 84 with a free flange 87 which encloses a stationary disc 89, to which the control rod 60 is anchored. The rod 63 is therefore capable of actuation by the governor within the limits imposed by the springs 71, 72. The governor is also connected with the nut 14 by slotted links 98 which thereby limit its movement and that of the blades to the mean hand setting.
Patent GB-1307606-A (GB)
Title: Method of producing containers -for propellant charges- consisting of combustible materials
IPC: F42B1/00
Filed: 1970-03-10
Abstract: 1307606 Making cartridge cases HENRY WALLENBERG & CO AB 10 March 1970 [10 April 1969] 11496/70 Heading F3A Combustible cellulose nitrate containers for propellent charges are produced by nitrating fibre webs and joining together a number of layers of the nitrated web; blanks are produced from the layered material and formed into containers of the required size. The nitrated webs may be drawn separately through a solution of nitrocellulose, pressed together by rollers, and dried. Blanks stamped out of the dried sheet are stored, softened when required, and shaped. Webs intended for the outer surface of the container may have a lower nitrogen content than the inner ones. The webs may be reinforced by light woven fibric which may be attached before nitration. Cartridge cases may be formed with longitudinal grooves or ribs on their outer cylindrical surfaces.
Patent GB-544406-A (GB)
Title: Improvements in or relating to modulators and demodulators comprising rectifiers in balanced bridge-connection
IPC: H03C1/58
Filed: 1940-07-10
Abstract: 544,406. Modulating and demodulating systems. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). July 10, 1940, No. 11525. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 14, 1941.] [Class 40 (v)] In a balanced modulator or de-modulator utilizing four contact rectifiers arranged so that substantially no current of carrier frequency is transmitted to the load when the input carrier has a prescribed amplitude, the four rectifiers are so grouped that there is a minimum carrier leakage to the load when the input carrier departs from its prescribed amplitude. The Specification indicates that the apparent capacity of the rectifiers varies with the applied carrier amplitude and that this variation differs for individual rectifiers. By choosing the rectifiers so that the capacity variations of one pair are substantially balanced by the capacity variations of the other pair, a minimum of carrier leakage results when the carrier amplitude departs from its prescribed value. Fig. 2 shows a double push-pull modulator with rectifiers 1... 4 and with a carrier source 8 connected at one side to centre tappings on the input secondaries from a signal source 5, 6, and on the other side to a potentiometer 12 associated with output coils coupled to the load 10, 11. A variable condenser 13 is connected at one end to the centre tappings on the input transformer and at the other end to one or other of the circuit branches to effect a complete balance at the prescribed amplitude of the applied carrier. The invention is also applicable to modulators employing rectifiers connected in ring or bridge formation (Fig. 3, not shown).
Patent GB-482925-A (GB)
Title: Improvements in or relating to boxes or containers for fruit
IPC: B65D6/18
Filed: 1937-04-22
Abstract: 482,925. Bag - lined boxes. HOOKE, H. F. G. April 22, 1937, No. 11557. [Classes 18 and 94 (ii)] A fruit box or container is lined with a rectangular - bottomed bag shown in Fig. 4 which is made from the three blanks shown in Fig. 1, flaps 25, 27 being gummed to panels 15, 16 respectively, and folding taking place on lines 31, 30, 28, 29, 16. Four flaps 19, 22 are turned inwards over the contents. The sides, ends and bottom of the liner may have pieces of corrugated cardboard or other resilient material attached thereto. The blanks may be coated with adhesive during assembly or they may be pre-coated.