baber/WOPTO huggingface dataset:
Patent GB-187071-A (GB)
Title: Improvements in and relating to paper feeding machines
IPC: B65H9/14
Filed: 1921-08-10
Abstract: 187,071. White, A. E., (Cross Paper Feeder Co.). Aug. 10, 1921. Sheet registering-devices and carriers; dropping-roller and like sheet feeds; gripper mechanism. -Sheets are fed to printing and like machines by forwarding devices moving at a constant high speed which is maintained until the front stops are nearly reached, the sheets are then slowed down quickly and released before the stops are reached, the sheets being grasped by their front edge and drawn against the stops. The sheets are separated by known means, such as combing rollers, forwarded by constantly driven rollers 4 coacting with drop rollers 2 mounted in lever arms 10, and are finally fed by rollers 12, 14 driven at the same speed as the rollers 2, 4. The rollers 14 are mounted in resilient arms 48 which can be depressed by cam and lever-and-link mechanism to release the sheet. There are two rollers 12 symmetrically arranged on a constantly driven shaft 21 provided with hubs about which segment rolls 18 are freely mounted, and oscil. lated by cam and lever mechanism. The rolls 18 also co-operate with the pressure rolls 14, and are of larger diameter than the rolls 12, so that when the sheets are gripped between the segments 18 and rolls 14, the rolls 12 are out of action. The rolls 18 are given a variable motion and soon decrease the speed of the sheet, until it is nearly at rest. The sheet is then seized by grippers 20 carried by a reciprocating rod 82, and is carried by the grippers against the front stops 16. The grippers are opened to take the sheet by pins 86 on the front stops acting on arms 88 projecting from the upper jaws of the grippers.
Patent GB-1493305-A (GB)
Title: Hydraulic booster
IPC: B60T13/16
Filed: 1975-05-19
Abstract: 1493305 Hydraulic boosters BENDIX CORP 19 May 1975 [20 June 1974] 21304/75 Heading F2F An hydraulic booster comprises operator actuated input rod 20 whose end remote from the operator extends into a pressure chamber 18 formed by a bore 14 in a housing 12 and a piston 16 slidably mounted in the bore 14. The left hand end (as viewed in Fig. 1) of the piston 16, defines together with a secondary piston 24 and the bore 14 a chamber 22 divided by the piston 24 into first and second sections 26 and 28 respectively. The piston 16 incorporates six circumferentially spaced, axially extending slots 54, 56, 58, 60, 66 and 68 (Fig. 2) and houses a spool valve 120 provided with complementary grooves 132, 134 and co-operating lands 136, 138. An accumulator 72 comprises piston 76 slidable in bore 74 to form chamber 80 which, upon brake actuation, is supplied with high pressure fluid from inlet port 62 via check valve 98 and changing passage 86 (Fig. 2). In a brake released position as shown in Fig. 1 fluid from pump 64 may pass to power steering 70 via inlet port 62, slots 58, 60, grooves 124, 132 in the interior of piston 16, and slots 66, 68 in its exterior. The outlet of power steering 70 is connected both to the inlet of pump 64 and to vessel 30, communicating with the pump reservoir, which comprises first, second and third compartments 32, 34 and 36, compartments 32 and 34 communicating with chamber sections 26 and 28 via tilt valves 38 and 40. On brake actuation rod 20 urges spool valve 120 to the left (as shown in Fig. 1) relative to the piston 16 closing communication between chamber 18 and the pump reservoir via grooves 134, 126 and opens communication between grooves 134 and 124 which communicates with groove 58 at pump pressure allowing pump pressure to pressure chamber 18 to urge piston 16 to the left causing a corresponding pressure rise in chambers 26 and 28 and closure of tilt valves 38, 40 so that this rise is maintained. Chambers 26, 28 communicate with the vehicle's split braking circuit to front and rear brakes respectively. In the event of a supply failure the piston 16 is initially moved to the left mechanically by rod 20, the resultant increase in pressure in chambers 26, 28 operating a valve piston 104 to allow communication between the accumulator and chamber 18 so that normal operation is resumed. Any leakage of fluid to the reservoir from chamber 18 via valve spool 120 is avoided by the contact of face seal 144 of a transversely extending end part 140 of spool 120 on a corresponding face 146 of piston 16 to isolate chamber 18 from the internal passage of spool 120.
Patent GB-723782-A (GB)
Title: Improvements in the control of electric motors driving battery operated vehicles
Inventor: MALLINSON WILLIAM ARTHUR
IPC: H02P7/298
Filed: 1951-09-12
Abstract: 723,782. Control of D.C. motors. ELECTROHYDRAULICS, Ltd. Sept. 25, 1952 [Sept. 12, 1951], No. 21477/51. Class 38 (3). A battery-operated vehicle is driven by an electric motor having armature A and field winding F, the motor being accelerated by means of a foot controller which closes contacts Cl, C2, C3, in sequence. The foot-operated contacts are in circuit with relays which first connect the motor to the battery and then remove armature resistors R2, R3, in steps. When the foot controller has been moved to its highest speed position so that contacts C3 are closed, the vehicle can be brought to a still higher speed by pressing push-button PB to energize relay DR and to connect diverter resistance R across field winding F. The relay DR has a self-maintaining contact CDR2 so that the diverter resistance remains connected after the push-button has been released, so long as the foot controller is held in its highest speed position. Instead of using the diverter resistance R the field reduction at maximum speed may be obtained by connecting in parallel two halves of the field winding which are normally arranged in series.
Patent GB-784326-A (GB)
Title: Improvements in and relating to brushes and polishing pads
IPC: A46B11/00
Filed: 1954-07-22
Abstract: 784,326. Reservoir brushes and pads. WAITING, W. E. K. July 22, 1955 [July 22, 1954], No. 21481/54. Class 19. The top face of the back of a brush or pad is recessed to accommodate a collapsible tube of shoe polish or other material with the nozzle or upper part of the tube in a passage 3 extending to a side wall so that the contents can be extruded clear of the side wall, the bottom of the tube being inserted in a slot 7 in the back to hold the tube in position. A spring clip may be provided to assist in holding the tube.
Patent GB-1195741-A (GB)
Title: Agglutinant Compositions
IPC: C09J7/30
Filed: 1967-05-09
Abstract: 1,195,741. Polymer compositions. JOHNSON & JOHNSON. 9 May, 1967 [9 May, 1966 (2)], No. 21528/67. Headings C3P and C3R. [Also in Divisions B1-B2, C4 and D1-D2] Agglutinant compositions comprise a normally liquid synthetic conjugated diene polymer of molecular weight 500 to 4000 and having sufficient hydroxyl and/or carboxyl groups to be cured within 4 minutes at 350 F., and dispersed therein a diene-polymer-reactive heat-curing aldehyde resin. The polymer may be derived from butadiene or isoprene, optionally together with styrene or acrylonitrile. Specified resins are alkylphenol-, bromomethyl alkylphenol-, urea- and melamine-formaldehyde resins. The compositions may also comprise solvents, e.g. toluene and xylene; cure accelerators, e.g. zinc resinate, toluene sulphonic acid and stannous chloride; and fillers, e.g. zinc oxide, titanium dioxide and clay. They may be used for agglutinating fibrous sheets, as bonding agents for abrasive grains in the manufacture of sandpapers and as pressure sensitive adhesives, optionally with tackifiers such as rosin derivative esters, naphthenic oil, terpene resins and indene/isoprene/butadiene/styrene resins. Many examples are given disclosing agglutinant compositions comprising hydroxyl- and carboxylcontaining polybutadienes, hydroxyl- and hydroxyl / carboxyl-containing butadiene / styrene copolymers and hydroxyl-containing butadiene/ acrylonitrile copolymers ; p-t.-octylphenol/formaldehyde, o - t. - butylphenol / formaldehyde, nonylphenol / formaldehyde, bromomethyl alkylated phenol / formaldehyde, urea / formaldehyde and melamine/formaldehyde resins; zinc resinate, toluene sulphonic acid and stannous chloride cure accelerators; solvents, e.g. toluene, xylene, butanol and capryl alcohol; tackifiers including diethylene glycol ester of dehydroabietic acid, naphthenic oil, terpene resin and a Friedel-Crafts polymer from oil distillation still residues ; and fillers and pigments, e.g. zinc oxide, clay and titanium dioxide.
Patent GB-436175-A (GB)
Title: Improvements relating to fusible electric cutouts
IPC: H01H85/38
Filed: 1934-07-23
Abstract: 436,175. Cut - outs. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and METCALF, A. W., Hamilton House, Victoria Embankment, London. July 23, 1934, No. 21656. [Class 38 (i)] A casing for a cut-out of the kind having means such as a local deformation or restriction of the section or a local change in the material of the central portion bf the fusible element for locating the starting point of fusion consists of two insulating members cemented together and shaped with interengaging surfaces of substantial length so that the two members can only be separated by a relative sliding movement between these surfaces. Preferably the parts are identical in shape so that one mould can be used for both. In the forms described, two fuse strips are accommodated in separate compartments. In one form, Figs. 3 .. 5, the casing in addition to the walls providing the meeting surfaces, e.g. 7, 9, 38, 43 has sloping walls such as 56, 40 which form tapered entries and exits for the fuses. In a modification, Figs. 8 and 9 there are no sloping walls, the fuses entering parallelsided passages at 91 which are partly covered by projections 90 to prevent ingress of arcquenching powder. Recesses 92 are provided in the side walls to ensure that the low melting point metal can run clear of the main part of the fuse. The Provisional Specification also includes a similar but simpler form of the invention.
Patent GB-494925-A (GB)
Title: Dust and insect proof cover, suitable for covering food, and similar uses on plates and dishes
IPC: A47G19/26
Filed: 1938-07-08
Abstract: 494,925. Dish-covers. HOW, M. F. July 8, 1938, No. 21557/37. [Class 128] In a dish-cover consisting of a, wire base frame 1, two or more hinged curved supporting wires 3, 4, and an outer covering of lace, muslin, &c. attached to the base frame outside the supports, the inner curved supporting wire 3 is formed with a kink 9 which engages all the outer undeformed supporting wires. Specification 18160/03, [Class 128], is referred to.
Patent GB-531519-A (GB)
Title: Printing telegraph receiver
IPC: H04L17/24
Filed: 1939-07-25
Abstract: 531,519. Type-printing telegraphy. STANDARD TELEPHONES & CABLES, Ltd. July 25, 1939, No. 21611. Convention date, July 25, 1938. [Class 40 (iii)] [Also in Group XVI] In a type-printing telegraph receiver, the typewheel is positioned by selecting mechanism comprising a stop wheel, provided with stops progressively doubling in number and progressively positioned in accordance with all but one of the selecting impulses, and means responsive to the remaining selective impulse for rotating the type-wheel during the selective operation controlled by the other impulses. The type-wheel is rotatable through a maximum angle of 180 degrees by the other selecting impulses, and through 180 degrees by the remaining impulse, if present. The means for positioning the typewheel by the stop wheel is substantially the same as that described in Specification 504,231, and includes line magnet 34, a friction-driven shaft 2 carrying a series of cams 8, four of which co-operate with stop levers 19 to position the stop wheel 54. A fifth cam engages the lever 21 which, if a selecting impulse is received during the first time unit, causes shaft 57 to rock arm 59 having a bent end 60, thereby moving one end of a pivoted lever 61 into position to be engaged by a face cam 74 on the shaft 2. The other end of lever 61 engages a sleeve 66 connected by pin and slot with the shaft 5 carrying the stop wheel 54 and also with the shaft 67 carrying the type-wheel 104, the arrangement being such that the cam 74 moves the sleeve 66 axially and causes shaft 67 to rotate 180 degrees relatively to shaft 5, this movement being additional to the movement of shaft 67 by shaft 5 due to the remaining selecting impulses. In order to reduce the load on the type-wheel shaft during its initial movement, the inking roller is disengaged from the type-wheel during this period by a cam on shaft 2. Specifications 473,614 and 499,033 also are referred to.
Patent GB-873742-A (GB)
Title: Improvements in or relating to control devices for automatically controlling physicalvariables
Inventor: STEVENSON IAN WATT
IPC: G05B11/01
Filed: 1957-07-09
Abstract: 873,742. Automatic temperature-control systems. KELVIN & HUGHES Ltd. Oct. 9, 1958 [July 9, 1957], No. 21707/57. Class 38 (4). A control device for the automatic control of a variable-for example the temperature of an electric furnace-comprises a galvanometer 14 having a pointer 16 attached to a moving-coil element 15; the pointer 16 carrying vanes 20, 25 which cooperate with photo-cells 23, 28 respectively which are mounted on two frictionally engaged arms 17, 18, the two arms being movable relatively to the galvanometer 14 and relatively to each other whereby control of the variable may be effected at two pre-selected values thereof. In an electric furnace having a threephase heater the furnace may have an initial rate of heating with the supply connected to the furnace in delta. When the first pre-selected temperature is reached one of the vanes masks one of the photo-cells whereupon switch means are operated to change the connections to start to provide a reduced heating rate. When the second pre-selected temperature is reached the other of the vanes masks the other photo-cell whereupon the heater of the furnace is deenergized. The galvanometer 14 operates in conjunction with a scale 12 indicating the furnace temperature the arm 17 carrying a pointer 31 and a sub-scale 30 whilst the arm 18 carries a pointer 32 arranged to move over the sub-scale 30. Each photo-cell is arranged to receive light from a lamp reflected by a mirror. Alternatively, reactances may be used in lieu of the photo-cells, the moving vanes being arranged to vary the reactance values thereof. Specifications 813,277 and 821,552 are referred to.
Patent GB-845273-A (GB)
Title: Improvements in a continuous process for the production of hydrofluoric acid
IPC: C01B7/19
Filed: 1956-07-13
Abstract: In the continuous production of hydrofluoric acid by reacting fluorspar and sulphuric acid, the reactants are mixed prior to introduction into the reaction furnace by introducing them through separate inlets into a continuously operating mixing and conveying <PICT:0845273/III/1> device opening into the furnace, and the fluorspar is dammed between the two inlets to form a plug which prevents the escape of hydrogen fluoride.  The mixture is heated in order to produce a granular reaction mixture.  Additive material, e.g. anhydrous calcium sulphate, which does not take part in the reaction but which may have a catalytic effect, may be added to increase the porosity of the mass and assist the escape of hydrogen fluoride. As shown, fluorspar is introduced through the inlet 8 into the casing 3, which is secured to the furnace 4, and is conveyed by the worm 1, which has a gap in the blade equal in length to the length of the fluorspar plug 7 to be formed.  To ensure mixing, the worm is reciprocated and teeth 10 on the casing pass through gaps in the blade.  Sulphuric acid is introduced at 9.  The density of the plug 7 may be increased by reducing the cross-section of the casing 3 where the plug is formed, e.g. by a constriction or perforated plate. A perforated plate 5 serves to granulate the mixture entering the furnace.
Patent GB-627009-A (GB)
Title: Apparatus for grinding a prescribed end radius on a spirally fluted cutting tool
IPC: B24B3/06
Filed: 1945-08-24
Abstract: 627,009. Radius grinding of cutting-tools. DEHN, F. B. (Meyers Co., W. F.). Aug. 24, No. 21799. [Class 60] changeable. In apparatus for forming a prescribed end radius on a spirally fluted cutting tool a turntable is mounted for rotation on a base member and carries the support for the tool through the intermediary of a slide to permit the tool to be oscillated through movement of the turntable and to be also rotated by means of its support; a cam is adjustably mounted on the base member and a cam follower is secured to the rotary support for the tool, said cam follower being engageable with the cam upon oscillatory movement to bring about rotative movement of the tool about its axial centre, according to the spiral curvature of the flute. A base 12, which can be clamped to the adjustable bed plate of a grinding machine having a cupped grinding wheel 11, carries a base plate 12a provided with a turntable 15 which carries a longitudinal slide 17, movable by handwheel 53, and transverse slide 18, movable by rack and pinion operated by handle 58. The slide 18 carries a pillar 19 on which are adjustably mounted supporting rollers 21 and hold-down roller 23 for a cylindrical member 22 containing a split collet 29 which can be clamped on to the tool 30 by tightening member 31. Secured to the end of the member 22 is an indexing collar 32 having a series of notches 33 selectively engaged by a spring- pressed plunger 41 carried by a ring 34 which is restrained by a spring and carries a rod 43 which bears against a cam block- 44, so that as the turntable is oscillated through an arc of 90 degrees the tool 30 is turned about its axis, so that the grinder follows the flutes. The cam block 44 is adjustably mounted in a slot in arm 50 extending from head 49, rotatable about the same axis as the turntable 15, and carried by arm 48 and standard 46 clamped to the base plate 12a. The base has a notch 10b, to receive a bar to tilt the apparatus relaytive to the grinding wheel as shown.
Patent GB-1335918-A (GB)
Title: Piston ring
IPC: F16J9/12
Filed: 1971-04-19
Abstract: 1335918 Piston rings GOETZEWERKE FRIEDRICH-GOETZE AG 19 April 1971 [28 Oct 1970] 21904/71 Heading F2T A spring-ring for a piston is marked by making a notch 3 in the vicinity of the ring gap in the peripheral edge 2. Preferably, the notch is inclined at 45 degrees and is easily visible and mechanically detectable both on the upper flank face and the inner peripheral face.
Patent GB-1504104-A (GB)
Title: Generating station for the production of power from marine currents in particular tidal currents
IPC: F03B9/00
Filed: 1976-05-26
Abstract: 1504104 Tidal current motors: endless chain type H PITZER 26 May 1976 21915/76 Heading F1T The invention relates to apparatus for generating electric power from marine or tidal currents comprising a frame, a set of blades carried by an endless conveyer, means for erecting the blades during blade travel in the direction of the current and for feathering the blades during blade travel in the opposite direction, the whole apparatus operating submerged. The apparatus comprises four tubular members 1, 2, 3, 4 which are interconnected by horizontal frame members 5a, 5b, 6 also by vertical members 40 to define a support structure - several units are in fact connected together. The structure is immersed in a current indicated by arrows S. Endless conveyers in the form of chains 7, 8 run over sprockets 10, 11 at the forward end and sprockets 12, 13 at the rearward end, the sprockets 10, 11 being mounted on a shaft 37 and sprockets 12, 13 on a shaft 14; a gear-wheel 15 is mounted on the shaft 14 and drives a pinion 16 by which the generator 17 is driven. A plurality of blades or vanes 9 is provided, each blade comprising a tubular frame 18 of rectangular form with a flexible "sail" 19 connected thereto, the sail filling out as it moves with the current. The blade is guided in guides 24 in the upper members 1, 2, the blade frame having rollers 27 at its upper edges, and in guides 25 in the lower members 3, 4, the blade frame having sliders 28 at its lower edges; the lower edges also carry tongues 39 which engage in the claims 7, 8 whereby the chain is driven as the blades are driven by the current. A guide wire 22 extends over pulleys 20, 21 carried by the blade frame 18, the wire being connected to a member 23 carried by the chains 7, 8. As the chains pass over the sprockets 11 at the forward end, "rake" devices 30, 31 carry the guides 28 to the upper channel 25 whereby the blade is erected for its driving stroke. As the chains pass over the sprockets 12, 13 at the rearward end the blade is moved to the feathered position for its return stroke. Fixed guides 32 are provided at the top of the structure to guide the water current on to the blades; adjustable guides 36 are provided at the bottom of the structure and also act to direct the water current on to the blades. The lower members 3, 4 are formed with compartments 3a, 3b, 4a, 4b which may be flooded so as to submerse the apparatus at any desired depth. The apparatus is located in the marine current by cables 34, 35 secured to a bollard; if the apparatus is operated by a tidal current it will move to face into the current as the tidal flow changes.
Patent GB-681261-A (GB)
Title: Improvements in mops or similar implements
IPC: A47L13/24
Filed: 1949-08-23
Abstract: 681,261. Holders for mops and brushes. ANDERSSON, J. A. C. Aug. 23, 1949, No. 21939/49. Class 61 (i). A device for holding a mop 1 or other cleaning implement and attaching it to a handle comprises a semicylindrical holder 2 carried by a socket member 5 and a retaining member comprising a bar 3 or bars fixed to the shanks 4 of a U-shaped member, the latter being passed through an arcuate slot 10 in the holder and held in position by a lever 8 pivoted on the socket. To allow the parts to be correctly assembled, the looped end of the shanks is arched. The handle 6 is held in the socket by a bayonet fixing which is locked by the lever 8. A brush, Fig. 8, is provided with upstanding lugs 12 having lateral apertures 13 in each of which is engaged the end of one of the bars formed by bending outwardly the shanks 4. The holder 2 may be reinforced by corrugations.
Patent GB-1007465-A (GB)
Title: Process for preparing a dry, finely divided gelatin particle product containing a medicament
IPC: A61K31/59
Filed: 1962-06-07
Abstract: Gelatin beadlets comprising a medicament, particularly a fat-soluble material having vitamin A, D, E or F activity, are made by preparing an aqueous gelatin solution containing the medicament and, optionally, excipients such as plasticizers and antioxidants, forming the material into droplets and introducing the droplets into a slurry consisting essentially of a "congealing liquid", i.e. a liquid in which gelatin and the active ingredients are insoluble and which is inert under the conditions of the process, and a finely divided solid "anti-agglomerating agent", i.e. a free flowing solid, inert under the conditions of the process and insoluble in the aqueous gelatin solution.  Thereafter, the mixture is agitated until the beadlets are set and may be separated and dried.  Suitable congealing liquids include n-hexane, heptane, iso-heptane, benzene, toluene, and xylene. Suitable anti-agglomerating agents include colloidal silicon calcium silicate, sodium aluminium silicate, rice starch, corn starch and modified starch.