baber/WOPTO huggingface dataset:
Patent GB-546117-A (GB)
Title: Electrically driven hand tools
IPC: A61C1/06
Filed: 1940-11-18
Abstract: 546,117. Magneto-electric machines. WHITESIDE, H. A. Nov. 18, 1940, No. 16622. [Class 35] An electric motor for driving hand tools such as are used for dental work comprises a tube A of magnetic material of convenient size for holding in the hand and permanently magnetized to form suitably located magnetic poles and an armature E mounted in bearing bushes D located in bores in plugs B of insulating material screwed into the ends of the tube A. A commutator F is mounted on the end of the armature and the brushes G and springs I therefore are carried in sleeves H threaded to receive hollow screws J in which are adapted to engage split terminal pins N of terminal members N<SP>1</SP> carried by an end cap M of insulating material through which passes a cable 0 carrying conductors 01 soldered to the terminals; the cap M secured in position by two screws engaging a pair of threaded bushes located in the plug B in a plane at right-angles to the plane of the terminals.
Patent GB-198225-A (GB)
Title: Improvements in inhalers for dental and like purposes
IPC: A61M16/10
Filed: 1922-06-15
Abstract: 198,225. Ash, Sons, & Co., Ltd., C., and Weller, F. W. June 15, 1922. Inhalers. - Relates to anµsthetic inhalers of the type wherein a tubular valve-member is rotated in a casing having branch connections to the gas supply, face mark, and expiratory valve. According to the invention, the tubular member, and the inlet valve carried thereby, are made readily detachable for sterilisation by the removal of a screw or pin in the outer casing. In the form shown, the outer casing 1 carries a branch 3 leading to the gas supply, an expirating valve 5, and a central connection 2 leading to the face-mask; an opening 18 serves for the admission of air, and the inner member 6 is formed with a slot 8 in which the retaining screw 7 engages. An opening 19 in the side of the inner member enables communication to be established between the branches, and a flap valve 15 is secured to a flat seating 17 thereon by means of a U-shaped clip 16. A handle carried by the inner member may be set in either of three working positions 21, 22, 23 to give direct communication with the air, communication to the gas supply through the flap valve 15, or direct communication with the gas supply, while at intermediate positions between the first pair of working positions a mixture of gas and air may be supplied.
Patent GB-440870-A (GB)
Title: Improvements in or relating to the formation of packets of pulverulent or granular materials
IPC: B65B43/14
Filed: 1935-06-07
Abstract: 440,870. Feeding sheets. ROWAN, W. W., Prome, Glenpatrick Road, Elderslie, Renfrewshire. June 7, 1935, No. 16641. [Class 100 (i)] [See also Group XVII] In a machine for making packets of granular materials such as salt, soda, sugar, &c. from paper discs, a series of cup-shaped members 23, mounted on chains 21, are carried in turn beneath a magazine 31 containing discs of paper, which may be waxed. A rubber-tipped rod 33 is moved so that it puckers up the lowermost disc and admits air above it, and a hollow plunger 39, connected to a source of suction, ascends through an aperture in the member 23 and draws the disc down into it. In a modified arrangement, the paper discs may be elliptical, the die 73 and the feeding tube being correspondingly shaped.
Patent GB-1391701-A (GB)
Title: Time-sharing computer systems
IPC: G06F9/32
Filed: 1972-04-12
Abstract: 1391701 Relative addressing SPERRY RAND CORP 12 April 1972 [13 April 1971] 16795/72 Heading G4A  Base addresses of program segments are stored in base registers 20 of a high speed control store 16, and a program address register 26 specifies a particular base register 20 together with the address, relative to the specified base, of the next instruction, the base and relative addresses being combined in adder 30 to obtain the absolute address of the instruction. A jump instruction causes the relative address contents of register 26 to be stored in an index register 18 and to be replaced by a relative address specified by the jump instruction. The arrangement allows an executive program to re-locate program segments even during execution of jumped to subroutines, it only being necessary to alter the contents of the appropriate base register 20 to reflect the re-location. Adder 28 is used to increment the relative address portion of the register 26. The contents of a particular base and/or index register may be added to an operand designator field of an instruction in register 36 to obtain a modified operand address.
Patent GB-799325-A (GB)
Title: High speed packaging machine
IPC: B65B25/04
Filed: 1956-05-31
Abstract: 799,325. Wrapping-machines. AMERICAN VISCOSE CORPORATION. May 31, 1956 [July 21, 1955], No. 16846/56. Class 94(1). In a machine for wrapping articles such as fruit and vegetables, a web of heatsealable wrapping material W, Figs. 1 and 2, is fed continuously from a roll 22 over formers 26, 27 and between rollers 35, 37 whereby it is formed into a trough for the reception of the articles A, the upper edges of the trough passing between pairs of rollers 28 and being engaged by cam-operated grippers 30 on driven endless chains 31, 32 which converge at their rear ends so that the edges of the trough are brought together to form a tube enclosing the articles and pass between heated seaming rollers 45, 46. The articles are placed in the trough by the operator and are supported on platforms 52 carried by driven endless chains 47, 48. The tube and enclosed articles then passes between upper and lower endless conveyers 75, 76, Figs. 1a and 3, which carry two series of spaced heatsealing devices 100, 85 arranged to co-operate in pairs to collapse and heat-seal the walls of the tube between successive articles. Each device 100, Fig. 7, comprises spaced, electricallyheated jaws 101, 102 carrying rollers 111 arranged to engage a resiliently-mounted track 114, and a reciprocable knife 103 carrying rollers 129 which are arranged to engage cam plates 130, 131. The devices 85 are similarly constructed except that the knife 103 is omitted, and carry rollers 111 arranged to engage a track 112. The tube also passes between the upper runs of pairs of endless chains 140, 141 and 142, 143, Fig. 3, carrying two series of opposed spaced housings 147 each supporting a transversely movable carriage 153, Figs. 4 and 5, which carries fingers 150, 151 and 152 formed with V-notches at their outer ends. Each carriage is fitted with a roller 163 arranged to engage a V-shaped cam 160, see also Fig. 2a (not shown), whereby opposed sets of fingers are brought together to bunch the tube transversely between successive articles. This operation occurs shortly before the heating jaws are pressed together by the rollers 111 engaging a step 115 on the track 114. The fingers thus determine the width of the heat seals and ensure that the sealed portions of the tube are properly severed when the knives 103 are operated by the cams 130, 131. The resulting packages are of the form shown in Fig. 20.
Patent GB-910670-A (GB)
Title: Clutches
IPC: F16D13/71
Filed: 1961-05-09
Abstract: 910,670. Friction clutches. BORG-WARNER CORPORATION. May 9, 1961 [May 19, 1960], No. 16872/61. Class 80 (2). In a clutch of the type in which a driving disc 16 is engaged between the engine flywheel 34 and a pressure plate 14 by springs 28, and released by radial levers 56, the edges of the openings 48 in the cover plate 12, through which the lever-engaging lugs 50 on the pressure plate pass, are provided with channel-shaped members 76 of brass or other soft material to reduce noise consequent upon movement of the lugs on clutch actuation. In addition each lever is formed with a longitudinal rib 88 received in a recess 89 in the fulcrum opening 62 in the cover-plate, thereby reducing the axial length of the wall portion 44.
Patent GB-346217-A (GB)
Title: Improvements in rock drill shanks, steels or the like
IPC: B23B31/00
Filed: 1930-05-31
Abstract: 346,217. Percussive rock drills. POTTER, H. S., 23, Cullinan Buildings, Main Street, Johannesburg, South Africa. May 31, 1930, No. 16883. [Class 124.] Rock-drill shanks enlarged in the manner described in Specification 324,412, [Class 124, Stone &c.], are further provided with a forward collar or sleeve, such as a rubber ring 5, or an integral metal enlargement 9, or both, for the purpose of preventing the shank from working back into the barrel. A steel ring 7 may be shrunk on outside the rubber ring, or the metal collar 9 may carry an outer steel ring fixed by welding or otherwise.
Patent GB-691892-A (GB)
Title: Operating tables
IPC: A61B6/04
Filed: 1951-07-18
Abstract: 691,892. Operating-tables. MEYER, W. July 18, 1951 [July 21, 1950], No. 17013/51. Class 52(iii) An operating table with a plurality of relatively adjustable sections 1, 7, 8, 9, 11 is mounted on a shaft 5 in a fork 4 carried by a pivot 33 rotatable in a vertically adjustable head 29. The frame structure consists of tubing detachably connected together and the upper and lower longitudinal connecting tubes 27, 28; 19, 20 carry adjustable fittings 48, 50 to support X-ray apparatus.
Patent GB-1423400-A (GB)
Title: Oligomerization process
IPC: C08F4/619
Filed: 1973-04-10
Abstract: 1423400 Catalyst modification for the production of low polymers of ethylene EXXON RESEARCH & ENG CO 10 April 1973 [17 April 1972] 17048/73 Heading C3P [Also in Division C5] A product comprising primarily linear alpha olefins of molecular weight 70 to 600 is obtained by polymerizing an ethylene-containing gas in the presence of a catalyst system comprising (a) a tetravalent Ti, Hf or Zr compound, (b) an organo-aluminium halide and (c) a polyfunctional Lewis base modifier which is hexamethylphosphoramide or dimethyl formamide and which normally forms an insoluble complex with the AlCl 3  formed during reaction of components (a) and (b), the polymerization being carried out in a non-polar diluent, at a temperature less than 100‹ C. and a pressure above 100 p.s.i.g., the mole ratio of ethylene to the reaction product being maintained above 0À8 and the reaction product having at least 90% of linear olefins in which the product olefin concentration is greater than 5% based on the diluent and reaction product. The insoluble complex formed with component (c) may be removed or may remain in the reaction system. The addition of component (c) enhances the catalyst selectivity for the linear alpha olefins. In examples ethylene is polymerized to various low molecular weight products having M n  values of 225 to 360, mixed with minor amounts of high polymer, using TiCl 4 -EtAlCl 2 -hexamethylphosphoramide or dimethylformamide.
Patent GB-380477-A (GB)
Title: Improvements in beds or couches
IPC: A47C19/00
Filed: 1931-06-12
Abstract: 380,477. Beds. PILATES, J. H., 939, 8th Avenue, New York, U.S.A. June 12, 1931, No. 17118. Convention date, June 20, 1930. [Class 52 (ii).] A bed comprises side rails 15, 17 and a bodysupporting surface consisting of two portions hinged together longitudinally so that, when occupied, the central longitudinal portion is substantially below the level of the top of the side rails, the surface then forming a dihedral angle having sides sloping downwardly towards the longitudinal centre line from the side rails. Pivoted struts 23 may normally maintain the surface horizontal, and springs may be provided to return the surface to the horizontal when the load is removed. A simple form is shown in Fig. 6.
Patent GB-293449-A (GB)
Title: Improvements in or relating to ovens of the rotary annular sole type
IPC: F26B21/04
Filed: 1928-06-13
Abstract: 293,449. Trocknungs-, Verschwelungsund Vergasungs-Ges. July 7, 1927, [Convention date]. Tunnel ovens; discharging. - In an annular rota.ry hearth oven in which the charge is treated in a thin layer as described in Specification 289,137, charging and discharging are effected at a number of points so that the oven is divided into sections each forming a complete chargetreating unit. In the four-section oven shown, fuel is fed through the shoots c<1>, and the residue of distillation is withdrawn by suction discharging devices d of the kind described in Specification 271,707. The four suction pipes e lead to a common dust separator g, the gas from which is passed to the distributor h and thence by the pressure pipes f to the discharging-devices.
Patent GB-1144176-A (GB)
Title: Polyurethane sheet materials
Inventor: NORCROSS KENNETH
IPC: B29C48/08
Filed: 1966-04-19
Abstract: 1,144,176. Polyurethane films; sheet casting polyurethane. NAIRN-WILLIAMSON Ltd. 13 April, 1967 [19 April, 1966], No. 17128/66. Addition to 929,442. Headings B5A and B5B. [Also in Divisions B2 and C3] A process for reproducing a fine pattern in relief comprises the steps of feeding a liquid mixture of components which will react to form a solid flexible polyurethane, with pigment, fillers or other additives as desired, on to an endless belt of a silicone elastomer bearing a negative of the fine pattern, running the belt with the mixture on it through a heating chamber to cause the mixture to emerge as a cured layer on the belt, cooling the layer while it is still on the belt, and then stripping it off the belt. The mixture of components which will form a polyurethane on curing normally contains a polyisocyanate together with a polyol or a polyamine or both. The polyisocyanate may be a di- or tri-isocyanate or an isocyanate adduct bearing, e.g., both isocyanate and urethane groups, or a pre-polymer having two or more active isocyanate groups per molecule. Examples of suitable pre-polymers contain urethane and ester groups or urethane and ether groups. The polyisocyanate component must contain at least two isocyanate groups per molecule, and the polyol or polyamine components at least two hydroxyl or amine groups per molecule. The polyol may be a simple diol or triol or a pre-polymer containing urethane groups and ester or ether groups in addition to the active hydroxyl groups. The thermoplasticity of the polyurethane formed may be varied by the choice of the components and their proportions, up to a state of complete non- thermo-plasticity. The curing conditions used to form the polyurethane from the mixture of components depend on the components, and the presence or absence of curing catalysts. Curing may be effected at 120 to 180 C. for from 3 to 30 mins.; or a two-stage curing process may be used in which the layer is first heated to 120 to 180 C. for from 2 to 5 mins. to effect partial curing, followed by a second stage curing at 120 to 180 C. for a further 2 to 30 mins. The endless belt of silicone elastomer is formed as described in the parent Specification. Examples are given.
Patent GB-356766-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B1/14
Filed: 1930-06-04
Abstract: 356,766. Direct contact steam boilers. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 4, 1930, No. 17165. Convention date, June 6, 1929. [Class 123 (ii).] In steam boilers of the kind in which water is injected into a small quantity of superheated steam, the mixture superheated, and more water injected into it and so on until the desired quantity of steam is developed, the quantity of the initial "exciter" steam is regulated in dependence on the firing. In one construction the motor of a pump which draws the exciter steam from the steam and water storage vessel is regulated by the firing control means which operate, e.g. the speed of the chain grate or of ram drivers, or the pulverized fuel admission means. In the plant shown a separate boiler 16 provides the exciter steam, a valve 17 influenced by the firing control means regulating its quantity and a pressure relief valve 18 passing excess into the water space of the storage vessel. Specifications 262,396 and 288,635, [both in Class 123 (ii), Steam generators], are referred to.
Patent GB-171987-A (GB)
Abstract: 171,987. Howie, K., and Taylor, W. O. Nov. 26, 1920, [Convention date]. Circular machines; striping.-Relates to striping mechanism in which the yarn changes are initiated by electromagnetic means while the power employed in effecting the changes is transmitted mechanically, preferably through a rotating part of the machine. The invention is particularly applicable to spring-needle multi-feed machines in which the cam-ring is fixed while the needle-carrier rotates. Pivoted yarn fingers 5 are operated by star-wheels 7 on axles 8 which are shifted to different horizontal planes by bellcranks 14 so that the arms of the star-wheels are placed in or taken out of the path of dogs 9, 10. Each bell-crank 14 is operated by a link 17 extending radially from the track ring 18 of a central control mechanism mounted on a post 19 depending from a bracket 20. An oscillating ring 22 mounted on the fixed ring 18 carries a series of armatures 23 pivoted at 24 and controlled by electromagnets 25. When a magnet is energized, the corresponding armature 23 is pulled up into the horizontal position with its free end 27 in line with a star-wheel 28, which is then given a quarter-turn as the result of the oscillation of the ring 22. The star-wheel 28 turns a cam 30 which bears on a pin 31 carried by an arm 32 pivoted at 33, and causes a wheel 33<1> to push the rod 17 outwards or allow it to move inwards under the influence of a spring. The ring 22 is oscillated by a rod 36, arm 39, and vertical rock-shaft 40, the lower end of which carries an arm 41 operated by a cam 42 moving with the take-up ring 4. The magnets are energized in the order required for making the pattern by a jacquard, the pattern-controlling surface of which consists of an endless paper board 47 or other non-conducting material provided with openings arranged in 'transverse lines. The band is hung on an intermittingly rotated drum 49 having a surface of conducting material such as brass. Brass contact fingers 51 overlying the drum are brought down upon the paper by rocking a block on which they are mounted, through connections 54, 56, 57, from an elongated cam 59 on the take-up ring. When the fingers 51 are lowered and they register with holes in the band 47, contact is made with the drum 49, which completes circuits causing the respective magnets 25 to be energized. The circuits are 'broken when the ring 22 completes the next oscillating movement by an elongated cam 64 passing from under contact members 61, 62. To avoid sparking at the drum 49, the cam 59 is arranged to come into action before the cam 64 and to go out of action after it. The yarn when raised out of work is cut bv a blade 80 pivoted to the post 19 and co-operating with a fixed blade 81 and held in open position by a spring 82. The blade 80 is operated by a rod 84 which is moved vertically by a lever 86, the arm 89 of which is lifted by a cam 90 carried on the oscillating ring 22. The cut ends of yarn are retained by pivoted fingers provided at each feed.
Patent GB-897357-A (GB)
Title: Improvements in or relating to furnace linings and products therefor
Inventor: MARTINET JACQUES RENE
IPC: F27D1/10
Filed: 1960-05-16
Abstract: The basic refractory lining of a metallurgical furnace comprises a mixture of a major proportion of fired dolomite grains retained on a 35 mesh screen and a minor proportion of magnesia passing 35 mesh with a small amount of non-aqueous, cokable carbonaceous bonding agent.  Up to 40% of the dolomite may be replaced by 4-10 mesh magnesia, chromite alumina or spinels.  At least 30% of the fine magnesia should pass 100 mesh and the whole comprises magnesia stabilized by heating so that the free lime comprises with silica, iron oxide &c.  The carbonaceous bonding material which comprises 4-10 parts by weight of the mixture may be tar, pitch or ashphalt. Up to 3% of a surface active agent such as a fatty acid, a long-chain aliphatic amide or amine or a sulphonated or sulphated aliphatic compound with at least six carbon atoms may also be added.  The material may be applied to a furnace in situ or may be formed into bricks or blocks by moulding in a vibratory press.
Patent GB-894374-A (GB)
Title: An improved typewriter without a ribbon
Inventor: KISSZEKELYI GYULA
IPC: B41J27/04
Filed: 1960-05-16
Abstract: 894,374. Typewriters &c. METRIMPEK MAGYAR MUSZERIPARI KULKERSKEDELMI VALLALAT. May 16, 1960, No. 17223/60. Class 100(4) In a typewriter provided with a mechanism to ink or apply dye to the type-characters the type bars I rest on an impregnated pad 2 and in striking engage a wheel 4, of soft material adapted to be impregnated by dye transferred from the pad 2. The pad 4 supported in front of a central guide 3 is mounted on arms 5, 6 urged by springs 7, 9 into the striking path of the type bars. The arrangement is such that in striking the typecharacters engage the wheel 4 to receive dye therefrom before printing and in completing the stroke push the wheel aside. When the type bar has passed the wheel 4 its spring 9 restores it so that the back of the type-bar engages the wheel on the return stroke to transfer to it dye prised up from the pad 2. The wheel 4 rotates when engaged by the type bars so that its whole surface is kept impregnated.
Patent GB-146154-A (GB)
Title: Improvements in the manufacture of butter fats
IPC: A01J11/12
Filed: 1920-06-24
Abstract: 146,154. Johnston, A. W., (Assignee of Phelps, E. B., Stevenson, A. F., and Baker, J. C.). June 26, 1919, [Convention date]. Butter.-Butter fat is caused to coalesce and separate out from cream by the addition of a fluid agent which modifies the surface tension between the fat globules and the serum. Milk is run through a separator, and the cream obtained is diluted with water and again passed through the separator and the process repeated. On heating the cream finally separated, the butter fat separates as a clear oil. Caustic soda. hydrochloric acid or other dilute solution of alkali or acid may be employed in place of water, and sodium chloride may be added to the washed cream.
Patent GB-1191454-A (GB)
Title: Improvements in or relating to the Warming of Beds.
Inventor: SULTAN SULTAN ALIMOHAMED FAZUL
IPC: A47C21/04
Filed: 1966-04-20
Abstract: 1,191,454. Mattresses. S. A. F. SULTAN. 12 July, 1967 [20 April, 1966], No. 17252/66. Heading A4M. [Also in Division H5] The conventional tie springs 3 which link together the coiled compression springs of a spring interior mattress are used as electric heating elements. Upper and lower rows of tie springs are provided. The tie springs 3 are electrically connected at opposite ends to U-shaped metal braid connectors 4 which are in turn connected to terminals 5. The tie springs are fed in parallel form a tapped step-down transformer. The connection terminals may be at the same end. The primary winding circuit of the transformer may include protective devices, e.g. a fuse, thermostat, or relay. The secondary winding is earthed. The tie springs 3 may be insulated or enclosed in flameproof insulating sheeting. The transformer may be mounted on a bed-frame, foot- or head-board, in the mattress or be free standing.