baber/WOPTO huggingface dataset:
Patent GB-184482-A (GB)
Title: Improvements in electric switches
IPC: H01H37/68
Filed: 1921-09-17
Abstract: 184,482. Aktiebolaget Birka Regulator, (Assignees of Appelberg, A. O., and Gilliver, G.). Sept. 30, 1920, [Convention date]. Cases; contacts; thermal interrupters. - Periodic - contact switches, such as thermal interrupters, have their contact surfaces of tungsten, tantalum, molybdenum, or other refractory material, and are enclosed in a vacuum or an atmosphere of inert gas. In one construction, a vacuous or gas-filled bulb 5 contains refractory contacts 1, 2 mounted on springs 3, 4, and a bimetallic strip 6 which deflects one of the springs when heated. The Specification as open to inspection under Sect. 91 (3) (a) states that for electromagnetic actuation, a movable armature is either enclosed in the bulb, or displaces the bulb bodily. This subject-matter does not appear in the Specification as accepted.
Patent GB-1497325-A (GB)
Title: Process for the production of polyhydroxy compounds
IPC: C08G18/54
Filed: 1975-05-21
Abstract: 1497325 Polyhydroxy compounds; polyurethanes BAYER AG 21 May 1975 [1 June 1974] 21800/75 Heading C3R A process for the production of liquid polyhydroxy compounds having a hydroxy content of from 3-10% by weight and containing more than two aliphatically bound hydroxyl groups, which are soluble in lacquer solvents, comprises reacting an alkoxylated phenol of the formula where R and R<SP>1</SP> represent hydrogen or a methyl group, and n is 1-3, with formaldehyde, preferably 30% wt. aqueous HCHO, in the presence of a mineral acid, e.g. HCl or H 2 SO 4 , at 50-150 C., generally in an aqueous medium, the molar ratio of the alkoxylated phenol to formaldehyde being from 1 : 0À8 to 1 : 1À5, and the molar ratio of the mineral acid to alkoxylated phenol generally being from 0À01 to 0À2 : 1. The polyhydroxy compounds can be used for the production of polyurethanes by reaction with polyisocyanates, and can be used as the polyhydroxy component of a solvent-containing 2-component polyurethane lacquer. Suitable solvents are aromatic hydrocarbons, ketones and esters. Suitable polyisocyanates include 2,4- and 2,6- toluene diisocyanate, 4,4<SP>1</SP> - diisocyanate diphenylmethane, the reaction product of 3 mols of 2,4-toluene diisocyanate with 1 mol of trimethylolpropane, hexamethylene diisocyanate and tris(6-isocyanatohexyl)biuret. In the examples polyhydroxyl compounds prepared by reacting aqueous HCHO with either (1) 2- phenoxyethanol, or (2) the addition product of either 2 mols of ethylene oxide or propylene oxide with 1 mol of phenol, in the presence of HCl are used in the production of polyurethane lacquer solutions comprising in addition to the above polyhydroxy compound an aromatic triisocyanate which is the reaction product of 3 mols of 2,4-toluene diisocyanate and 1 mol of trimethylolpropane; cellulose acetobutyrate, ethyl glycol acetate and xylene alone or additionally together with either (1) titanium dioxide, ethyl acetate, butyl acetate and toluene; or (2) a tar, of viscosity 5600-6400 poises, treated with p-tolyl sulphonyl isocyanate, a filler mixture of heavy spar and talcum, and a polyisocyanate obtained by reacting excess 2,4-toluene diisocyanate with a trihydroxy polyether obtained by reacting trimethylol propane with ethylene oxide and propylene oxide. The lacquers are coated on to glass and iron plates.
Patent GB-460965-A (GB)
Title: Cross pin hole drilling jig
IPC: B23B47/28
Filed: 1935-08-02
Abstract: 460,965. Drilling-jigs. PRICE, F. P. Aug. 2, 1935, No. 21891. [Class 83 (iii)] A jig for drilling cross-pin holes has a solid base A with a machined guideway R and T-slots S for carrying work-holding attachments, and an integral upstanding portion at one end provided with a vertical guideway T (the plane of which is perpendicular to the axis of the first guideway R) for carrying a vertically adjustable angle bracket B provided with a drill-guiding bush C, the axis of which lies centrally with respect to the guideway in the base. A dividing head E, Fig. 2, with a supporting bush G on which work may be held by a nut and washer H, may be clamped in the guideway R, or a V-block I with clamping attachments J, K, L may carry the work. In drilling circular work this may be fastened to a multi-sided mandrel which is carried in a flat-bottomed channel in a supporting block to enable the workpiece to be indexed. Specifications 103,592 and 120,790, [both in Class 83 (iii)], are referred to.
Patent GB-122176-A (GB)
Title: Improvements in and connected with Means for Printing Addresses on Telegrams, Letters and the like.
Inventor: HALLER HANS KNUDSEN
IPC: B41L45/00
Filed: 1918-12-31
Abstract: 122,176. Haller, H. K.., and Johanson, A. Jan. 12, 1917, [Convention date]. Addressing-machines; printing-surfaces.-Means for printing the full addresses on telegrams, letters, &c. comprises a set of printing-plates filed, so as to be readily removable singly. in a series of loose holders in a cabinet such that a holder may be inserted or removed as required at any place in the cabinet. As shown, the address plates a, stamped or otherwise provided with the address for printing, are formed with finger tabs c and with vertical portions b showing a telegraphic or abbreviated address &c. These parts b are all visible when the plates are filed in the loose cases d resting one on another in a cabinet f, g and any plate may be readily drawn out by means of its tab c. Shoulders on the cases d normally prevent them from being drawn out of the cabinet, but any one may be removed by lifting those above it and turning it so that it will pass between the bars f of the cabinet. The plates are taken singly, as required, and placed in the guides m of a printing stamp such as is shown in Fig. 9, the plate printing through a ribbon l, against a platen n.
Patent GB-382670-A (GB)
Title: Improvements in or relating to the feeding of two- or more-cylinder internal combustion engines
IPC: F01L5/06
Filed: 1931-07-31
Abstract: 382,670. Cylinders ; valve mechanism. KEGRESSE, A., 156, Rue Armand Silvestre, Courbevoie, France. July 31, 1931, No. 21931. Convention date, Aug. 9, 1930. [Classes 7 (ii) and 7 (vi).] Inlet chambers 10 in the upper ends of two cylinders communicate with one another to form a common inlet chamber closed by the cylinder head and supplying the cylinders around the whole circumference. Sleeve valves 2 which seat against the cylinder head control admission of combustible mixture from the inlet chamber 10. They may be actuated by toothed engagement at 4 with a cam-actuated lever 8. A spring 9 tends to maintain the sleeve seated. The chamber 10 may be formed partly in the cylinder head as shown.
Patent GB-803994-A (GB)
Title: Improvements in power units of the gas turbine type
IPC: F02C3/16
Filed: 1954-07-27
Abstract: 803,994. Gas turbine plant. MORTON, P. P. H. Oct. 27, 1955 [July 27, 1954], No. 21949/54. Class 110 (3). A gas turbine power unit comprises two coaxial rotors, the first having a combustion chamber, or combustion chambers and the second having reaction surfaces on to which the products of combustion are directed, a centrifugal air compressor being provided to supply air under pressure to the combustion chamber or chambers. In Figs. 1 and 2, the rotor 1 is secured on a shaft 2 and is formed with an annular combustion chamber 4. Fuel is supplied to the chamber through passages 3, 3<SP>1</SP> and air is supplied between diffuser vanes 6 through openings 7. The combustion gases issue through nozzle guide vanes 12 and impinge on blades 11 carried by the turbine rotor 10 which is rotatably mounted on the shaft 3 and surrounds the combustion chamber rotor. The turbine rotor 10 is provided with two centrifugal-type air compressors 8, 9, one on either side of the rotor 1, air from the compressors discharging between the vanes 6 to the combustion chamber 4. The two rotors therefore rotate in opposite directions, power being supplied by the combustion chamber rotor through the shaft 2. In a second embodiment, Fig. 3, the combustion chamber rotor is in two parts 1, 1 disposed on either side of the bladed turbine rotor 10 and carries two annular combustion chambers 4, 4 which each receive air from between the diffuser vanes 6 through openings 7. Gases from the combustion chambers issue through nozzle guide vanes 12, 12 and impinge on the vanes 11 of the turbine rotor 10. The gases finally discharge through another set of vanes 14 carried by the combustion chamber rotor 1, 1. The turbine rotor 10 drives the centrifugal air compressors 8, 9 which are rotatably mounted therewith, the compressors supplying air to the two combustion chambers 4, 4. The combustion chamber rotor 1, 1 is secured on a shaft 2 and supplies power while the turbine rotor 10 and compressors 8, 9 are rotatably mounted on the shaft 2. The rotor discs 10 and turbine blades 11 may be hollow to permit flow of cooling air.
Patent GB-205265-A (GB)
Title: Improvements in or relating to footsteps for bicycles and the like
IPC: B62J25/00
Filed: 1922-08-12
Abstract: 205,265. Stevens, W., and Goodman, C. H. Aug. 12, 1922. Steps and foot rests.-A footstep to assist in mounting and dismounting from a bicycle or the like comprises a hard wood or other base supporting a corrugated layer 2, Fig. 3, and bored at 8 to receive an elongated hexagonal or othershaped locking-nut 9 on the rear spindle. The footstep may be mounted on either side of the machine and is secured to one of the chainstays by a clip comprising limbs 3 embracing the stay and tightened by a bolt 5 and a wing-nut. The clip is bolted, riveted or welded to a bracket 6 engaged in a groove or ledge 11 and secured therein by means of a bolt 12 and a nut 14 in a cavity 15. In a modification, the footstep is composed entirely of metal and is furnished with lugs 21, 22, Fig. 6, fitting on either side of an ordinary footstep and secured thereon by two screws 20. A name-plate is secured to lugs at the rear of the footstep.
Patent GB-219526-A (GB)
Abstract: 219,526. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 7, 1923. Evaporators and condensers in structural combination.-A tank 10 for making varnishes &c. in which a volatile solvent, such as gasoline, is added to a heated materoal, is fitted with a condensing hood 13 with sloping walls provided with a jacket 12 through which cooling liquid is passed. An upper baffle 18 and lower baffle 17 which may be perforated direct the vapours against the hood. The condensate flows back into the tank. Volatile solvent is supplied through a funnel 21.
Patent GB-233588-A (GB)
Title: Improvements in or relating to fudge boxes
IPC: B41B1/08
Filed: 1924-09-17
Abstract: 233,588. Morris, E. T. Sept. 17, 1924. Fudge boxes.-In a fudge box having end plates 2, 3 moved simultaneously by a screwed spindle 4, the spindle is prevented from rotating by forming it with a number of plane faces 5 parallel or at right angles to each other to engage the plane faces of a slot 7 formed in one end plate 2. Collars 6 are preferably formed on the spindle to engage the opposite faces of the end plate.
Patent GB-485254-A (GB)
Title: Improvements in the deacidification of chrome leather
IPC: C14C3/06
Filed: 1937-08-10
Abstract: Leather which has been tanned with chrome tanning agents is treated with basic alkali, alkaline earth, or quaternary ammonium salts of aliphatic polycarboxylic acids or aromatic hydroxy acids, these compounds having the property of so acting on chromium hydroxide in neutral aqueous solution that on the subsequent addition of acid or substantive dyestuffs no formation of difficultly soluble compounds is caused.  Examples describe the treatment of leather with solutions of (1) sodium salicylate and the condensation product of naphthalene sulphonic acid and formaldehyde; (2) a solution of Cotton Brown A and potassium malonate; (3) the sodium salt of adipic acid and the sodium salt of triglycolamic acid.  Other acids, the salts of which may be used, are saccharic, itaconic, succinic, aspartic, salicylic.
Patent GB-717558-A (GB)
Title: Screen for paper stock
IPC: D21D5/06
Filed: 1952-09-02
Abstract: 717,558. Filters. WATEROUS, Ltd. Sept. 2, 1952 [Sept. 11, 1951], No. 22023/52. Class 46 In screening apparatus of the type wherein a suspension is admitted under pressure to one side of a (preferably cylindrical) screen plate, streamline vanes are provided in the suspension on the inlet side and are mounted for movement in a path adjacent the screen plate at a speed sufficient to produce suction in the space between each of the vanes and the plate, and impeding means are provided to restrain the suspension from acquiring a velocity approaching that of the vanes. Suspension under static pressure is introduced at 1, Fig. 1, into the space 2 enclosed by a cylindrical screen 3 supported by a frame 4. A wheel 7 carrying streamlined vanes 8, Fig. 2, and formed with radial vanes 9 is rotated by a shaft 5 carrying a labyrinth seal 13 and flinger 14 at a speed sufficient to produce pressure pulsations through the screen. Tangential motion of the suspension within the screen is prevented by radial vanes 27 on fixed discs 26, Fig. 2, and on fixed discs 24, 25, Fig. 1. Tailings pass through an annular space 16 wherein they are rotated at high velocity by non-streamlined extensions 15 of vanes 8 to produce centrifugal back-pressure against flow to the outlet 18 via a vortex chamber 17. White water to dilute the suspension is admitted at 19 and passes along chamber 20 and through holes 21. A fraction also passes through holes 22 to the space 23 between the wheel 17 and discs 24, 25, where it acquires centrifugal head so that a centrifugal seal is formed preventing suspension from flowing out through the labyrinth 13. Screened suspension is collected in a housing 29. Specification 254,068, [Class 46], is referred to.
Patent GB-666671-A (GB)
Title: Improvements in and relating to protective systems for high frequency generators
IPC: H03F1/54
Filed: 1949-08-24
Abstract: 666,671. Switching systems for high-frequency heaters. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 24, 1949 [Sept. 1, 1948], No. 22033/49. Class 38 (iv). [Also in Group XL (c)] A high-frequency generator is cut off when the amount of power reflected back to the generator from a load reaches a predetermined value. As shown, a high-frequency generator 1 is connected to a load 2 by a coaxial line 3. The generator may be a magnetron oscillator and the load may be an oven for heating precooked frozen meals. A loop 6, coplanar with the central conductor of line 3 and small compared with a quarter wave-length, is arranged so that the power in conductor 8 is proportional to the power reflected from the load 2 due to mis-matching. The reflected power is fed through an adjustable concentric condenser 10 to a crystal rectifier 11, provided with a bypass condenser 12. The rectified output is fed through a coaxial line 15 to an amplifier 18, over a delay circuit 16, 17. A positive input to amplifier 18 produces a negative voltage at the grid of a valve 19, thus reducing its anode current and releasing a relay 20 and closing switch 21 to energize relay coil 22 so that switch 23 opens and releases relay 24. This opens switch 25 in the anode supply circuit of the generator.
Patent GB-1134354-A (GB)
Title: Improvements in and relating to gear mechanisms
Inventor: ANDING NORBERT
IPC: F16H35/16
Filed: 1967-05-12
Abstract: 1,134,354. Toothed gearing. BETEILIGUNGSUND PATENTVERWALTUNGS, G.m.b.H. 12 May, 1967, No. 22077/67. Heading F2Q. In a gear mechanism the transmission ratio of which varies in accordance with a logarithmic function, toothed gears 2, 3, 4, 5 and 10 are each in the form of a logarithmic spiral 2a, 3a, 4a, 5a and 10a. Each gear is provided with spur gear formations at its ends and gears 2 to 5 are driven from gear 2 at increasing relative speeds by means of spur gears 6, 7, 8 on an adjacent shaft 8. Gear 10 meshes gears 2 to 5 and is moved axially on rotation by the engagement of a radial pin 13 with a helical thread provided on a fixed spindle 11. The pin 13 engages a slot 14 in a driven shaft 12.
Patent GB-749820-A (GB)
Title: An automatic machine for assembling cartons from blanks
Inventor: BAYLEY FREDERICK JAMES
IPC: B31B17/00
Filed: 1953-02-02
Abstract: 749,820. Feeding sheets. PEMBROKE CARTON & PRINTING CO., Ltd. May 3, 1954 [Feb. 2, 1953], No. 22103/52. Class 100 (1). [Also in Groups XVII and XXX]  Sheet - separators.-Blanks A and B are fed to assembly positions from separate magazines M, N in a box-making machine (see Group XVII) by suction heads having a combination of horizontal and vertical movement. The blanks A are stored in an adjustable magazine M (Figs. 3, 5) comprising two portions supported by arms 4 adjustably secured by bolts 5 to the machine bed. The enlarged ends 7 of the arms 4 permit adjustment of the angle at which the lowermost blank is presented to the plane of advance of the blanks through the machine. Each blank is engaged by a suction head C comprising a member 11  reciprocated vertically in a tube 10 by a cam 25 acting on levers 18 pivoted at 17 on a slider 14 and having studs 20 engaging slots 21 in the tube 10. The tube 10 is mounted on the slider, which reciprocates horizontally in guides on the machine bed under the action of a cam 141. The head presents the lowermost blank to rollers D for onward transmission, the next blank in the magazine being held against movement by a finger 31 swung into engagement with the pile by a cam 29 operating through linkage 33, 37-39, the length of the link 37, 38 being adjustable at 41 by a pin-and-slot connection. The blanks B are withdrawn from their magazine N by two suction heads J (Figs. 4, 7) having horizontal and vertical motion. Each head is moved horizontally by a slide 28 operated by a cam 93, the slide being connected to arms 88 between which the head is pivoted. Vertical movement of each head is derived from a cam 23 engaging a stud 24 on each pair of arms 88. Prior to withdrawal, however, the lowermost few blanks are engaged by means to squeeze them transversely to produce bending and separation, ensuring that only the lowest blank is removed. The means (Figs. 7, 8) comprise two fixed stops 161 (only the left hand half of a transverse section of the magazine N is shown in Fig. 8) and two movable stops 162, a stop 161 and 162 engaging the side edges of each portion 160 (Fig. 2) of the blanks B and the stops 162 being slid horizontally inwards by cams 165 acting on rollers 167 attached to the stops.
Patent GB-1149676-A (GB)
Title: Device for production of sets of panels for packings
IPC: B31D5/00
Filed: 1967-05-12
Abstract: 1,149,676. Assembling partitions. HCH. SIEGER G.m.b.H. 12 May, 1967 [14 May, 1966], No. 22162/67. Addition to 1,091,969. Heading B5D. A device for carrying out the assembly of partitions as described in the prior Specification 1,091,969 comprises a head K mounted on a shaft W and to which cut blanks 3 are fed, and bending arms F which are hinged to the head K and actuated during rotation of the head through 90 degrees to bend the blank into U- shape. The U-shaped blank is held by suction applied to holes in the bending arms and the longitudinal insert 11 is then inserted. Rotation through a further 90 degrees causes the assembled partition to strike a stripper which together with the release of suction causes the assembly to fall to a conveyer. Meanwhile a second pair of bending arms on the opposite side of the head is in position to receive the next partition member 3.
Patent GB-258579-A (GB)
Title: Improvements in the geared transmissions for the driving of dynamos effecting the lighting of trains
IPC: H02K7/18
Filed: 1926-09-10
Abstract: 258,579. Makower, A. J., and Mossay, P. A. H., (Assignees of Bithenod, J., and Jonet, A.). Sept. 18, 1925, [Convention date]. Driving - arrangements. - An arrangement for driving a train-lighting dynamo directly from the vehicle running-axle comprises a casing having bearings by which it is supported on a shaft forming an extension of the journal past one of the running-axles, a bevel wheel on the shaft, and another bevel wheel connected by a Card an shaft or its equivalent to the dynamo. In the form shown in the Figure, the extension shaft 4 of the running-axle journal 1 supports, by means of its bearings 6, 7, a casing 5, which is enclosed in the grease box non-rotatively and in such a manner as to allow relative movement between the axle 1 and the grease box. The casing encloses a bevel wheel 8 operatively connected to the shaft 4 and meshing with a bevel pinion 9, the shaft 10 of which is carried preferably by a ball bearing 11 in the casing and drives the dynamo shaft by a doubly flexible -jointed connection. The shaft 10 is feathered or otherwise slidingiy mounted in the sleeve 13 of a disc 14 forming the end member of the flexibly-jointed driving train, the sleeve 13 passing through a packing washer in the bottom of the grease box 12,
Patent GB-356400-A (GB)
Title: Improved potato planter
IPC: A01C9/08
Filed: 1930-07-25
Abstract: 356,400. Planting-machines. LAWTHER, H. E., 39, Norfolk Street, and BRYAN, H., 199, Star Road, both in Peterborough. July 25, 1930, No. 22427. [Class 6 (i).] Potatoes are taken one at a time from the hopper or container A of a potato planter by a cup E on an arc-shaped arm D oscillating about a centre an d travelling upwards and downwards through the hopper. The outer side or lip of the cup is longer than the inner side and the circular motion of the arm causes the potato to be pressed outwards against the longer lip by centrifugal action. The motion of the arm is controlled by a star-shaped cam wheel on the axle, the direction of motion being suddenly reversed at the end of its upward stroke so that the momentum of the potato taken up by the cup causes it to continue its forward motion into a funnel B, from which it passes through a flexible and adjustable pipe F into a furrow. The pivoted arm G carrying the arc-shaped arm D may be acted upon by a spring.
Patent GB-385240-A (GB)
Title: Improvements in treads for pneumatic tyres
IPC: B60C11/03
Filed: 1932-08-11
Abstract: 385,240. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street. London, and KING, F. G. W., Fort Dunlop, Birmingham. Aug. 11, 1932, No. 22474. [Class 144 (ii).] A tread surface for pneumatic tyres, particularly designed for silence in running, comprises a series of studs spaced irregularly in a circumferential direction, the studs preferably being separated by continuous circumferential grooves. The studs may be of the same or of different area, or of the same or different shape. In a modification, the studs may form successive groups, transversely of the tyre, containing studs of similar shape but of different area.
Patent GB-461734-A (GB)
Title: Improvements in or relating to electrical resonators of the transmission line type
IPC: H01P7/04
Filed: 1936-08-14
Abstract: 461,734. Electric resonant units. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 14, 1936, No. 22476. Convention date, Aug. 31, 1935. [Class 40 (iii)] A resonator of the coaxial-cylinder type with temperature compensation has means for adjusting the frequency. Thus, in a resonator in which the inner conductor 3 has a capacitive extension cap 3a supported on a rod 6 of inexpansible material (such as that known under the Registered Trade Mark " Invar ") the effective length of the rod may be adjusted by means of a nut 18 working against a spring 19. In a modification, Fig. 3 (not shown), the screw and spring are dispensed with ; the rod 6 slides in the hole 21 and is clamped in position by a grub screw. Alternatively, a detachable adjusting-device, Fig. 4, may be provided. The end of the rod 6 has a tapped hole TH so that it can be attached by screw means to a micrometer screw 10 which is associated with a scale 11. In another embodiment, Fig. 1 (not shown), the capacitive extension cap 3a is replaced by a bellows, and a micrometer screw associated with a scale and working against a spring is embodied in the resonator. The cap 17 may be of insulating material or metal.