baber/WOPTO huggingface dataset:
Patent GB-901974-A (GB)
Title: Improvements in or relating to apparatus for treating leather and skins
Inventor: MITCHELL ROBERT
IPC: C14B1/46
Filed: 1959-06-16
Abstract: 901,974. Apparatus for treating leather. TANNING EQUIPMENT Ltd. June 16, 1959, No. 20548/59. Class 76. In an apparatus for treating leather and skins comprising a roller rotatable about a stationary axis, an adjacent roller rotatable about a movable axis parallel to the stationary axis, means for positively rotating at least one of the rollers, a movable carrier in which the movable roller is mounted and a pressure fluid unit for moving said carrier and thereby the movable roller, there is interposed between the pressurefluid unit and the carrier coupling means of a kind which permits movement to be imparted to the carrier by a force exerted by the pressure fluid unit but prevents any substantial reverse movement to be transmitted by the carrier in opposition to said force. According to the embodiment shown in the Figure, 11 is a chaindriven stationary roller, while the chain-driven roller 13 is supported by the carrier 15 which is pivotal about a fulcrum 16, both axes 12 and 14 of the rollers being horizontal. The cam follower 17 at the lower end of the carrier is arranged to bear against the surface of an adjacent profile cam or eccentric 18, the position of repose of the carrier being such that 17 tends to be moved towards engagement with 18. The circular cam 18 is mounted for reciprocating rotary movement about an eccentric axis 19 by the piston-rod 20 attached at 21, 20 being moved by the action of the air piston and cylinder unit 22. The stops 25 (adjustably bolted to 15) and 26 (affixed to the machine frame) allow the minimum distance between the rollers 11 and 13 to be varied. The broken line 29 shows the locus of 21, the maximum distance of movement being to 21<SP>1</SP>. The broken line 30 shows the movement of a point of the cam surface. The position of cam follower 17 is adjustable by means of the screw 27 and nut 28.
Patent GB-148815-A (GB)
Title: Injector jet for internal combustion engine
IPC: F02M19/035
Filed: 1920-07-10
Abstract: 148,815. Sporrer, H. G. Nov. 21, 1916, [Convention date]. Spray carburettors.- Mixture formed in a pipe b issues through an annular jet into a mixing chamber formed by a cylindrical wall g and two cones; one cone is formed on the pipe b, the other on a block d, the annular jet being made between the pipe and block. Each cone is inclined three degrees to the vertical, and their meeting point is seven millimetres below the annular jet.
Patent GB-895835-A (GB)
Title: Improvements in or relating to digital information storage systems
Inventor: FREEDMAN ARYE LEIB
IPC: G11C11/06
Filed: 1959-06-16
Abstract: 895,835. Magnetic core matrix stores. DECCA RECORD CO. Ltd. May 24, 1960 [June 16, 1959], No. 20657/59. Class 106 (1). Serial read-out of a word stored in a row of magnetic-core matrix 10 is effected by applying half-read pulses to the selected row from address selector 12 and a series of ¢ pulses to the columns in turn from stepping switch 15; the output at 20 may be used for writing back the word by supplying it to magnetic core shift register 22 and subsequently resetting all the cores of 22 to provide ¢-write pulses on the column lines 17 which in conjunction with the addressing signal writes the word back in its original row.
Patent GB-1170636-A (GB)
Title: Improvements in Evaporators for Refrigerators
IPC: F28F21/06
Filed: 1967-05-03
Abstract: 1,170,636. Refrigerating; tubular heat exchangers. INDUSTRIE A. ZANUSSI S.p.A. 3 May, 1967 [10 May, 1966], No. 20658/67. Headings F4H and F4S. The refrigerant passageway of an evaporator is entirely contained within a body of plastics material. As shown, a convoluted metal conduit 2 is embedded in a sheet 1 of plastics material which may be formed by injection moulding or by juxtaposing two preformed sheets (Fig. 6, not shown). The thermal conductivity of the evaporator may be increased by incorporating a metal gauge, metal wires or metal particles within sheets 1. Conduit 2 may be omitted and the refrigerant passed through a passage formed directly in the body of plastics material.
Patent GB-299032-A (GB)
IPC: H01B17/02
Filed: 1928-07-17
Abstract: 299,032. Steatit-Magnesia Akt.-Ges. Oct. 20, 1927, [Convention date]. Addition to 290,262. Insulators. - In an insulator of the type described in the parent Specification, in which the hanger is positioned in the insulator cavity by flexible holders inserted between the hanger and the insulator wall, the flexible holders are now bent, to prevent swinging of the hanger, so that portions of the holders form abutments for the hanger shanks. In the embodiment shown in Fig. 1, the head 6 of the hanger 7 enters an enlargement 2 in the insulator cavity and rests on the bent ends 18 of holders 17. Bent portions 19 of the holders contact with the hanger shank 9 and the cylindrical walls 3 of the cavity. In modified constructions, the lower ends of the holders are bent outwardly towards the cylindrical wall 3 against which they abut, the centre part of the holder lying against the hanger shank; or, the upper ends of the holders may be bent to conform to the shape of the shoulder of the cavity 2, the lower ends being bent outwards to U-shape and abutting against the cylindrical wall 3; or, the lower ends of the holders may be curled outwardly to form eyes through which a wine ring may be passed. Fig. 6 shows a tool for inserting the holders. The outer ends 19 of the holders 17 are engaged by a clamp-like supporting strip 20 formed at its inner end with resilient tongues 34 between which lie the hanger ends 19.
Patent GB-1503773-A (GB)
Title: Glycolaldehyde derivatives and process for the production thereof
IPC: C07C/
Filed: 1975-05-15
Abstract: 1503773 Glycolaldehyde esters SNAMPROGETTI SpA 15 May 1975 [17 May 1974] 20727/75 Heading C2C Glycolaldehyde esters RCOOCH 2 CHO, where R is hydrocarbyl are prepared by rearrangement of corresponding epoxyvinyl esters in the presence of a Bronsted or Lewis acid. An example uses an ion-exchange resin to prepare α-acetoxyacetaldehyde from epoxyvinyl acetate.
Patent GB-583420-A (GB)
Title: A new or improved collapsible prop
IPC: E04H15/60
Filed: 1944-10-25
Abstract: 583,420. Props for trees. SHERVILL, J. S., and WOOLSTON, J. Oct. 25, 1944, No. 20739. [Class 6 (ii)] [Also in Groups X and XIV] A prop for clothes lines, tree branches, tents &c. consists of a box-like portion 2 with a slidable portion 6 held in the desired position by a removable bolt 9. A fixed ground peg 4 projects from the lower end of the portion 2 and the upper end of the portion 6 is provided with a saddle 12. The portion 2 consists of a 'channel section with a flat strip covering the mouth of the channel.
Patent GB-515245-A (GB)
Title: Improvements in or relating to prepayment mechanism for electricity meters and the like
IPC: G07F15/08
Filed: 1938-07-19
Abstract: 515,245. Prepayment mechanism for meters. SWITCHGEAR & METERS, Ltd., and ANGOLD, A. W. July 19, 1938, No. 20752/39. Divided out of 515,240. [Class 27] A price - change mechanism for prepayment meters comprises a number of coaxial wheels 5, Fig. 1, of progressively increasing diameter mounted in a rocking cradle 9 so that any one of the wheels 5 can mesh with a toothed wheel 11 adjustable along an axis 12 parallel with the common axis 6 of the wheels 5, the wheel 11 being driven by a long pinion 27 rotated by the hand-operated coin-controlled part of the prepayment mechanism which is described in Specification 515,223. The axis 12 is a screw-threaded shaft engaged by a non - rotatable hub 14 on which the wheel 11 rotates, the shaft 12 being rotated to adjust the position of the wheel 11 by a turn-screw applied to a head 13. The price in force is indicated by a pointer 23 connected by gearing 21, 22 to the shaft 12. During adjustment the cradle 9 is moved by a hand lever 17, Fig. 2, against the action of a spring 18 to disengage the wheels 5 from the wheel 11. The wheels 5 are separated by blanks 7 and a selected wheel 5 is correctly meshed with the wheel 11 when the blank 7 in front of the selected-wheel is in contact with a blank 19 in front of wheel 11, this position being indicated by pointer 23. The motion from the wheels 5 is transmitted by gears 8, 32 to one sun-wheel of the quantity-mechanism differential gear 33, and from this gear through two change-speed gears 37 to the crediting cam 36 of the mechanism, the cam 36 operating as described in Specification 515,240. The two-speed gear wheels are carried by a pair of rockable plates 44, and determine the price range of the mechanism. This range is indicated by a pin on the frame 44 working in a slot of the frame plate 1.
Patent GB-731349-A (GB)
Title: Method of obtaining high resistance to scaling of metallic objects
IPC: C23C4/067
Filed: 1951-09-03
Abstract: Metal objects which are exposed to temperatures of over 800 DEG  C. and to the action of corrosive gases, are sprayed with Cr-Ni-Fe or Cr-Ni alloys and subsequently coated with a liquid medium containing Ca-Si or Al-Ca.  The medium may be a paint with a bituminous base, the proportion of Ca-Si or Al-Ca to paint being 1 : 1, 2 : 1 or 60 : 40.  After coating, the object may be heated to 150-200 DEG  C. Reference has been directed by the Comptroller to Specification 565,083, [Group II].ALSO:Metal objects which are exposed to temperatures of over 800 DEG  C. and to the action of corrosive gases, are sprayed with Cr-Ni-Fe or Cr-Ni alloys and subsequently coated with a liquid medium containing Ca-Si or Al-Ca.  The medium may comprise a paint with a bitumen base.  After coating, the object may be heated to 150-200 DEG  C.  The coating may comprise Ni 18-30 per cent, Cr 18-25 per cent, Si up to 3 per cent, Fe balance; Ni 60-65 per cent, Cr 12-20 per cent, Si up to 3 per cent, Fe balance; or Ni 75-80 per cent, Cr 15-20 per cent, Si up to 2 per cent, Fe balance, if any.  The alloys may also contain W and/or Mo up to 10 per cent of each; alkaline earth metals, rare earth metals, Th, Zr or U 0.02-0.5 per cent of each.  Reference has been directed by the Comptroller to Specificatuon 565,083.
Patent GB-315573-A (GB)
Title: Improvements in the method of and machines for grinding the surfaces of rollers, bushes and the like
IPC: B24B5/04
Filed: 1928-07-18
Abstract: 315,573. B.S.A. Tools, Ltd., and Ogilvie, W. July 18, 1928. Centreless grinding; guides and rests. - In a machine for grinding rollers, bushes, &c. the work 3 is fixed on a mandrel 5 and is supported on a work plate which is interposed between a grinding-wheel 2 and a pair of axially-spaced control-wheels 1, the work plate being gapped to allow the ends 6, 6a of the mandrel to rest against the control wheels to impart rotation to the work and to support the work against the grinding pressure. For grinding cylindrical or taper rollers the grinding-wheel 2 may have an axial oscillating movement. The end 6 is formed integrally with the mandrel but the end 6<a> is detachably secured on the reduced stem 9 by means of a spring plunger 10 having a transverse bar 11 engaging depressions on the part 6<a>. By turning the spring plunger the ends of the bar 11 may be brought into register with key ways 13 in the part 6<a> to permit the removal of this part in order to position the work. Spring-controlled pressure-rollers 15 are provided to force the work mandrel into engagement with the control wheels. These rollers are carried on slides adjustable on guide plates 18 mounted on arms 19 sliding in guides 20 on the grinding-wheel casing. The sliding of the arms 19 is controlled by a stop comprising a screw 23 sliding in lugs 24 and engaging in a tapped hole in lugs 25 formed on the arms 19. Rollers having spherical or concave exterior surfaces may be produced by suitable modification of the grinding wheel pofile.
Patent GB-332723-A (GB)
Title: Improvements in and relating to vibration responsive apparatus or microphones
IPC: H04R21/02
Filed: 1929-07-06
Abstract: 332,723. Holman, H. E., and Clark, H. A. M. July 6,1929. Diaphragms.-In a microphone, the surface of the diaphragm in immediate contact with the carbon granules forming the variable resistance member is roughened bv a coating of non-metallic granular material, the protuberances of which are mutually united to one another and to the diaphragm. A substantially rigid or resonant diaphragm of mica or metal is coated with a film of cement, and a thin layer of carbon or carborundum granules rolled into firm contact with the film. In a modification, sand or ground glass may be substituted for the carbon.
Patent GB-1155358-A (GB)
Title: Improvements relating to Electrical Switches
Inventor: COLLINGS REGINALD JEFFREY
IPC: H01H15/08
Filed: 1967-05-04
Abstract: 1,155,358. Mechanical switches. D. H. BONNELLA & SON Ltd. 3 May, 1968 [4 May, 1967], No. 20843/67. Heading H1N. An electric switch includes a block member 2 slidably mounted in a housing 8, linked to an actuating arm 1 and resiliently biased against a fixed member in the housing, either the fixed member or the block member 2 including a cam track 6 and the other of the members including a follower 7 engaged in the cam track 6, the cam surfaces being asymmetrically angled such that the resistance to movement of the follower is greater in one direction along the track than the other. As shown, cam follower 7 is on block member 2. The switch has three positions, determined by valleys in the cam track 6, and the sloping cam surfaces leading from the valleys locating the outer positions to the crests bounding the valleys locating the central position are gradual, whereas the slope from these crests to the valleys locating the central position are steep so that it required little effort to switch the switch into the central position but greater effort to move the switch from the central position to either of the outer positions. The moving contact comprises member 5 urged by spring 3 against fixed contacts 4 of which there are five, Fig. 5 (not shown), bridged by moving contact 5 or 8 in a double-pole version, Fig. 6 (not shown).
Patent GB-423046-A (GB)
Title: Improvements in or relating to the manufacture of safety paper and like materials
IPC: D21H21/46
Filed: 1933-07-24
Abstract: 423,046. Security paper. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. July 24, 1933, No. 20880. Convention date, July 22, 1932. [Class 96] Paper, parchment, &c., for cheques, deeds, &c. is made sensitive to ink - eradicating chemicals, by incorporating with the paper pulp in the beating-engine, or by adding to paper, in solution or in suspension with sizing materials, or by dipping, or during calendering, an aminoarylothiazole having the general formula in which R represents an o-arylene group which may be unsubstituted or may carry substituents, e.g. halogens, alkyl, alkoxyl, amino, nitro, and sulphonic groups, and A represents hydrogen, or an unsubstituted or substituted alkyl, aryl or alkaryl group ; salts of the above may bo used, e.g. the hydrochloride, hydrobromide, sulphate, phosphate, formate, acetate, or oxalate. The unsubstituted amino compounds, i.e. those in which A represents hydrogen are preferred because of their greater solubility and fastness to light. Examples of benzthiazoles and #-naphthathiazoles which are stated to be particularly satisfactory are given.
Patent GB-982033-A (GB)
Title: Band building apparatus for tyre building machine
IPC: B29C31/00
Filed: 1963-05-24
Abstract: 982,033. Tyre-building machines. NATIONAL - STANDARD CO. May 24, 1963 No. 20888/63. Heading B7C. Apparatus for wrapping a fabric ply 32 around a cylindrical drum 110 (Fig. 3) comprises one or more resilient members 50, pre-set in an arcuate shape but forcibly held flat by a controllable device, on which the ply is positioned, the members 50 then being allowed to return to their arcuate shape (Fig. 3, dotted lines) wrapping the ply around the adjacent drum. The resilient members 50 are arranged parallel between transverse bars 52a, 52b, 54 (Fig. 2) and when held flat are supported by two platform sections 96, 102 hinged together on the centre of a carriage 56. The joint between sections 96, 102 is vertically movable by a piston-rod 94 of cylinder 92. The carriage carries a large diameter reel 80 rotated by a motor 86, and from two sides of the reel core (Fig. 5, not shown) extend two belts 89, 90 which run over various rollers to connect to the transverse bars 52a, 52b. In use, the fabric ply is laid on members 50 with the members held flat (Fig. 2) and then the carriage 56 is moved under the drum 110 (Fig. 3). The piston-rod 94 is raised, pressing the central parts of members 50 and the ply thereon against the drum, then the reel 80 is rotated to let out belts 89, 90 so that the members 50 embrace the drum. The ends of the ply 32 may then be spliced together on top of the drum Fig. 3, (and Fig. 4, not shown), and the reel 80 reversed to withdraw the members 50. The members 50 may be tempered steel, and their natural radius of curvature less than that of the drum. The apparatus may be used to apply fabric directly to a tyre building drum, or may be used in conjunction with apparatus illustrated in Fig. 1 (not shown), in which the fabric is formed into a band on an expandable mandrel, bead wires are added by axially moving apparatus, and the mandrel is subsequently telescoped over a tyre building bag to deposit the fabric and bead wires therein, the bag being inflated to effect formation of the fabric band and ply turnover round the bead wires inside a preformed tread. Specifications 854,256, 982,031 and 982,032 are referred to.
Patent GB-275666-A (GB)
Title: Handcuffs
IPC: E05B75/00
Filed: 1927-08-08
Abstract: 275,666. Eckerlin, K., and Enzensberger, M. A. Aug. 7,1926, [Convention date]. No Patent granted (Sealing fee not paid). Handcuffs.-The bases a, a<1> of a pair of pivoted jaws b, b<1> of a handcuff are formed with interengaging teeth c and the teeth of one jaw b' also engage a spring-pressed operating rack h by which the jaws are opened. The jaws are held closed by the spring-pressed wedge k which engages the base of the jaw b. The handcuff is shown in the operative position in Fig. 2. The casing carries a handle g. Release is effected by a pin p which passes up the hollow member h and first pushes the wedge k away from the base of the jaw b against the action of the spring l by means of its end and then pushes the rack member h inwards against the action of the spring n by means of its head p<1>, causing the jaws to open. The jaws close automatically under the action of the springs l, n, when the pin p is removed. If the jaws are applied initially to a part, such as the forearm, which is too thick to permit of complete closing, any opening tendency is prevented by the spring- pressed wedgs, but any closing tendecy of the jaws, such as by the jaws slipping down towards the wrist, is permitted.
Patent GB-1440705-A (GB)
Title: Drying of articles
IPC: C23G3/00
Filed: 1974-05-13
Abstract: 1440705 Drying RHONE-PROGIL 13 May 1974 [16 May 1973] 21062/74 Heading F4G A process for removing water from the surface of an article in which the article is immersed successively in a bath (A) for removal of water maintained at boiling point consisting of a liquid drying composition which is-not miscible with water and which comprises a solvent in a rinsing bath (B) maintained at boiling point consisting of the solvent in a rinsing bath (C) consisting of the solvent maintained at a temperature appreciably less than its boiling point and in the vapour emitted by a bath (D) consisting of the solvent maintained at boiling point, the following operations being carried out continuously, the vapours leaving the baths A and B and the vapours leaving the bath C are separately condensed, any water in the condensate is removed, the condensed solvent is passed into the bath C, excess solvent from bath C is passed into bath B, excess solvent in bath B is passed into bath A and the excess liquid from the bath A is recycled in to the bath A after elimination of water therefrom, the vapour leaving the bath D is condensed, any water contained in the condensate is removed and the solvent is recycled to the bath D. The apparatus for the process comprises a tank 1 containing the liquid drying composition which is not miscible with water, and having a heater therein, a decantation tank 33 for separating water from the composition and a recycling circuit for the liquid composition connecting the decantation tank 33 with the water removal tank 1 a first rinsing tank 2 having a heater therein, a space above the tank 1 and the tank 2 being surrounded by walls the upper parts of which are surrounded by a condenser 7, channels pass excess liquid from the tank 2 into the tank 1 and from tank 1 into the tank 33, a second rinsing tank 8, a space above being surrounded by walls the upper parts of the walls being surrounded by a condenser 11, excess liquid flowing into the tank 2 over a partition 27 separating tanks 2 and 8, a duct 13 for recovering the condensate obtained by condensation of vapour rising above the tanks 1, 2 and 8, a separator 14 for eliminating any water contained in the condensate and a duct 25 passes the condensed solvent into the tank 8, a third rinsing tank 42 having a heater therein, the space above the rinsing tank being surrounded by walls, the upper parts of which are surrounded by a condenser 46 a separator 49 for eliminating any water in the condensate and a duct 60 for passing the condensed solvent into the tank 42. The solvent may be 1,1,2-trichloro 1,2,2-trifluoroethane. The tanks 1, 2 may have ultrasonic agitation and the separator has a heater for boiling the condensate the vapour of which is then condensed again. The water rises above the solvent in the tank 33 and separators and is removed therefrom.