baber/WOPTO huggingface dataset:
Patent GB-629496-A (GB)
Title: Improvements in or relating to electrical switchgear with a quick-action make and break mechanism
IPC: H01H15/10
Filed: 1947-11-06
Abstract: 629,496. Snap-action switches; retractive switches. BROWN, S. W. Nov. 6, 1947, No. 29629. [Class 38(v)] A limit switch, suitable for use with lifts comprises one or more insulating blocks 18 having: a tapered end face 21 and formed on the upper surface with a diagonal slot 23, the base 26 of which forms a step 26A where it meets the tapered face 21. A contact strip 19 secured beneath the block 18 extends sideways beyond the face 21 and has a tongue 22 so inclined that its tip, adjacent the side 24 of the slot 23, projects slightly above the slot base 26. A flange 20 of. the contact 19 lies against the side of the block and continually engages a spring contact finger 8. A contact finger 6 having a down-turned end 28 is stressed to press downwardly and to the right in Fig. 1. The parts 6, 18 are relatively movable to operate the switch and in the embodiment shown, the block 18 is fixed to a plunger 13 guided in. members 1, 2. and urgent upwardly by a spriing 12. If the plunger 13 is depressed, for instance by a cam acting on the roller 35, the finger 6 rides along the tapered face 21 and is lifted by the contact tongue 22 above the step 26A so that it snaps back into the slot 26 against the side 25 and quickly breaks the circuit between terminals 3, 5. On releaseof the plunger the finger 6 moves along the lower side of the slot 23 until it reaches the step 26A where it snaps on to the contact 19 and completes the circuit. A pair of switches may be mounted side by side, as in Fig. 1, and have a common terminal 5. In Fig. 5 (not shown), a pair of switches are operated by a lever carrying a pair of cams and centralized by a spring, movement of the lever to either side of the centre operating the respective switch. In Fig. 7 (not shown), the. block is moved on and off by press buttons situated at opposite ends of the plunger, the stem of which passes through the block. In Fig. 8 a plunger 64 having a number of slots 65 and contacts 66 co-operating with unequallyspaced pairs of contact fingers 67, 68 operates a plurality of switches sequentially. In Fig. 9 (not shown), the slot is replaced by a cut-away portion of the sector-shaped end of a pivoted iinsulating lever, or alternatively, Fig. 10, one or more slots 82 may be provided in a wheel 84 operated by teeth 87 in a plunger 88.
Patent GB-1024791-A (GB)
Title: Improvements in or relating to coating apparatus
IPC: G01N30/93
Filed: 1962-09-23
Abstract: 1,024,791. Coating apparatus. C. DESAGA NACHF ERICH FECHT G.m.b.H. Sept. 23, 1962 [Dec. 6, 1961], No. 29630/62. Heading B2B. An apparatus for applying a coating (e.g. paste or powder) to a flat surface comprises means providing a flat support on which the object to be coated is positioned, an elongated applicator body extending transversely of the support and having a flat undersurface engageable with the object, said undersurface being formed to provide a horizontal discharge notch opening through a longitudinal edge of the body and said body having a cylindrical bore and being formed with an elongated slot which extends longitudinally of the body, connecting said bore to said discharge notch for flow of material from the interior of the bore outwardly of discharge notch, means for varying the composition of the material disposed along the bore, and means for regulating the thickness of the coating applied. The apparatus may comprise means secured to the body and engageable with the support for guiding the body over the support. The apparatus comprises elongated body 1 having a cylindrical bore 34, filling slot 2, discharge slot 3, discharge notch 4 and flat surface 28. A filling funnel 14 divided into two by diagonal partition 15 is releasably mounted in slot 2. In bore 34 is rotatable sleeve 10, which may be rotated so that the slot in sleeve 10 is in registry with slots 2 or 3. Extending through the body 1 is hollow shaft 13<SP>1</SP> having discs 11 which divide the bore into chambers. Rod 19 extends through shaft 13<SP>1</SP> and has blades 20 extending through slots 18 in the shaft 13<SP>1</SP> into the chambers. The rod is reciprocated or rotated by knob 21. The body 1 has secured thereto adjustable plate 6 in conjunction with micrometer screw 8 for regulating the thickness of the coating. In Fig. 8 (not shown), plate 26 has slots 29, 29a such that the plate may be moved to regulate the thickness of the coating.
Patent GB-641877-A (GB)
Title: Improvements relating to gear wheels
Inventor: THOMAS WALTER JAMES
IPC: F16H55/24
Filed: 1948-11-16
Abstract: 641,877. Toothed gearing. MORRIS MOTORS, Ltd. Nov. 16, 1948, No. 29722. [Class 80(i)] A worm-wheel B is split into two parts B1, B2, which are resiliently coupled to prevent backlash in the drive to an overhead camshaft A of an internal combustion engine. The main part B1 of the worm-wheel B is secured to the portion Al of the camshaft, the subsidiary part B2 being integral with a sleeve C which is loose on the shaft and abuts against a collar A2. The sleeve C is formed with an internal helical gear D co-operating with a ring-like helical gear E slidably splined to the shaft A1 and axially loaded by a compression spring F. The helix angle of the gears D, E is sufficiently small to prevent reversals of torque in the camshaft A producing relative rotation of the parts B1, B2 in a direction opposite to that in which the spring F urges the gears. The worm G is secured to a vertical drive shaft at the crankshaft end of which the gearing shown is duplicated.
Patent GB-1438165-A (GB)
Title: Cleaning methods and compositions
IPC: C11D17/00
Filed: 1973-06-22
Abstract: 1438165 Oven cleaning compositions CHURCH & DWIGHT 22 June 1973 [23 June 1972 17 May 1973] 29801/73 Heading C5D A cleaning composition for removing soil or other matter containing free or combined organic acids, e.g. food residues, from a surface comprises a carrier and 1 to 99% by wt. of a mixture of alkali metal weak organic acid salts, which melt at 250 to 550 F. with subsequent decomposition and volatization of the weak acid on further heating, the composition being substantially free of alkali metal hydroxide. Such weak acid salts are salts of C 1 -C 10  aliphatic or alicyclic carboxylic acids, e.g. alkali metal formates, glycolates, glycinates, adipates, tartrates and acetates, e.g. sodium, potassium and/or lithium acetates. The compositions may be in the form of solids, pastes, solutions, suspensions or aerosols. The carriers may be solids such as calcium carbonate, silica, feldspar, clay and talc; or aqueous or watermiscible organic solvents or suspending agents. Optional additions are (A) polyhydric alcohols containing at least 2 (OH) groups, e.g. ethylene glycol, glycerol, monoacetin, pentaerythritol, sorbitol and mannitol; (B) organic or inorganic thickening agents; (C) anionic, cationic or nonionic surfactant; (D) aerosol propellants. Aerosol compositions are particularly useful as oven cleaning compositions.
Patent GB-425157-A (GB)
Title: Improvements in and relating to envelopes, flat bags and like covers
IPC: B65D27/16
Filed: 1934-10-18
Abstract: 425,157. Envelopes &c. KROCH, F., 22, Bismarkstrasse, Leipsic, Germany. Oct. 18, 1934, No. 29876. [Class 146 (ii)] An envelope, flat bag, or the like provided with self-adhesive sealing means e, f, has its closure flap d lying in the same plane as the front of the envelope and not pre-folded, so that there is no tendency for the closure flap to fold itself upon and adhere to the back of the envelope. Preferably, the line of fold g of the closure flap is weakened by scoring or perforating, but the flap is not folded until the missive has been inserted into the envelope. The self-adhesive means may comprise a solution of rubber in benzene, and is preferably applied in the form of a number of narrow strips so positioned that when the flap d is folded over, the strips f on the flap lie partly on the strips e on the back of the envelope and partly over the intervening spaces between the latter strips ; this arrangement prevents air being entrapped. The arrangement of the adhesive on the envelope may be varied ; for example, discontinuous straight or curved strips, which when superimposed intersect or cross one another, may be provided. Specification 394,256 is referred to.
Patent GB-1106321-A (GB)
Title: Method and apparatus for making spiral wound containers
IPC: B65D3/00
Filed: 1965-07-14
Abstract: 1,106,321. Making spiral wound containers. CONTINENTAL CAN CO. Inc. 14 July, 1965 [22 Jan., 1965], No. 29909/65. Heading B8G. A tubular container is made by wrapping webs 31, 32, 33, Fig. 2, around a stationary mandrel 35 and applying heat to cause a hotmelt adhesive between the webs to become tacky prior to the webs being unified under pressure. The webs 31, 32, 33 overlap each other and may be covered by a final outer web 34 having a hot-melt adhesive on its inner face. The heaters are illustrated at 91 to 96 and may be flame or electric heaters. The tube formed by the layers 31, 32, 33 is rotated and moved axially off the mandrel 35 by a belt drive 37. The mandrel 35 is heated by hot water flowing through conduits 142, 144. The tube T is severed into discrete container bodies B, Fig. 6 (not shown), by a gang-type flying shear 165, Fig. 1 (not shown), carrying a plurality of blades 166. When the blades 166 are in contact with the tube T and moving at the same speed as the tube, the rotation of the tube against the blades severs it. Inner liner web 31.-This may comprise a strip of paperstock material such as parchment, or grease-proof paper, and having on its upper surface a film of hot-melt adhesive or hot-melt bondable material such as low density polyethylene, modified polyethylenes rendered tacky and flowable by heat. The underface of the paperstock is preferably covered with a slip agent to facilitate sliding of the tube along the mandrel. The slip agent may be vinyl dissolved in a solvent or an oily lubricant. Inner structural web 32.-This is preferably of paperstook with an upper film of hot-melt adhesive or bondable material. The longitudinal edges may be skived to impart a trapezoidal or parallelogram cross-section to the web. Outer structural web 33.-This is preferably of paperstock and its edges are skived to impart a trapezoidal cross-section. The web is initially uncoated but after leaving the skiving machine 73, Fig. 1 (not shown) the skived edge 72 is coated with a hot-melt adhesive or bondable material in emulsion form. Outer cover web 34.-This may comprise, an outermost strip of metallic foil, such as aluminium foil, an intermediate, paperstock strip, and an innermost film 82 of hot-melt adhesive. The Specification describes and illustrates various abutting and overlapping relationships of the webs to form the final tube.
Patent GB-676001-A (GB)
Title: Separation of sulphur compounds from hydrocarbons by azeotropic distillation
IPC: C07C7/05
Filed: 1948-11-17
Abstract: Organic sulphur compounds of the type RSH or RSR1 are separated from narrow boiling range mixtures containing a required hydrocarbon and the organic sulphide, by adding a paraffin or naphthene fraction which forms an azeotrope with the sulphur compound and has a final boiling point below that of the required hydrocarbon, and then submitting the mixture to factional distillation wherein the azeotrope is taken-off overhead and the purified hydrocarbon is obtained as bottoms.  The given narrow boiling range mixture may contain a plurality of hydrocarbons and of sulphides.  In an example, 1-propanethiol is separated from hexane by adding a paraffin fraction boiling in the range 52-68 DEG C and then distilling the mixture through a fractionating column of 25 theoretical plates, operated at a reflux ratio of 50 : 1.  The Specification gives the lower boiling point of paraffin and naphthalenes suitable for removing C2 to C5 dialkyl sulphides and C2 to C4 thiols.
Patent GB-631562-A (GB)
Title: Improvements in or relating to latches for doors
IPC: E05C1/16
Filed: 1947-11-11
Abstract: 631,562. Latches. BAKER, H. E. D. Nov. 11, 1947, No. 29948. [Class 44] A spring-loaded latch bolt is tapered towards the leading or forward end, and the latch housing is provided with correspondingly convergent bearing faces. The taper of the bolt is preferably symmetrical about its longitudinal axis. As shown, the bolt 2 is of rectangular cross section, decreasing in both width and thickness towards the nose, which is radiused on its forward face. A passage way of the same taper as the bolt is formed between the body 1 and a cover plate, and between flanges 7 integral with the body. The bolt is formed with through slots 10 and 11, Fig. 6, for the follower 3 and a locking device 5 respectively. Follower 3 is formed with a semicircular cam 3x located in a transverse recess 12 in the bolt, so that the radial faces of the cam bear on the rear wall of the recess to retract the bolt. The spring 4 is located in a U-shaped slipper 13 in the forward extension 10x of slot, acting between the end of the extension and the circular edge of cam 3x. The rotary locking device 5 is formed with diametrically opposed arms with common tangential side faces and arcuate end faces, and is retained in two positions by a spring 14. With the arms in line with the bolt, the latter is free, while if the arms are turned across the bolt in the circular part of slot 11, the bolt is locked in projected position.
Patent GB-300661-A (GB)
Abstract: 300,661. National Cash Register Co. Nov. 18, 1927, [Convention date]. Printing totals.-A locking control for the total lever of a cash register is so arranged that the lever cannot be returned to add position until the lock upon the total-taking positions has been re-imposed. A counter may be provided to count the number of times the lever has been moved to a pre-determined position. As shown in plan in the Figure, a locking-bar 33 normally obstructs the slot 1 guiding the total-lever A and can be withdrawn by turning the lock-barrel 6 linked to the bar at 32. Also linked to the bar is a bell-crank lever 8 pivoted at 9. When the bar is withdrawn the nose 10 engages the recess 2 to prevent the lever from returning to its add position. Similarly the lock upon the total positions cannot be removed until the lever has first been shifted from the recess 2 to allow entry of the nose 10.
Patent GB-1021029-A (GB)
Title: Production of shaped plastic strip
Inventor: KLIENE RONALD IAN
IPC: B29C53/04
Filed: 1963-07-30
Abstract: 1,021,029. Moulding synthetic resins. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 20, 1964 [July 30, 1963], No. 30136/63. Heading B5A. Polypropylene or other thermoplastic material is extruded from a screw extruder 1 to form a flat strip 3 which is partially cooled by passage around water-cooled rollers 4, and passed, longitudinally folded, between rollers 5 to emerge as angle strip for use as draughtexcluding or gasket material. The angle strip may be of V, N, or W cross-section.
Patent GB-465128-A (GB)
Title: Improvements in or relating to chucks for holding augers, drills, and like tools
IPC: B23B31/12
Filed: 1935-11-01
Abstract: 465,128. Chucks. FREEBOROUGH, A., and HALE, L. C. Nov. 1, 1935, No. 30172. [Class 83 (iii)] In a bevel closing advancing-jaw chuck, the jaws 16 slide in grooves 8 in the body 5 and are moved axially by a sleeve 12 having an inturned flange 15 engaging recesses 18 in the jaws. Axial motion of the sleeve 12 is produced by rotation thereof through a helical slot 13 therein engaging a pin 21, this pin passing completely through the sleeve and also serving to' attach an outer bevelled sleeve 19 rigidly to the body 5. The sleeve 12 may be rotated by means of a flange thereon extending beyond the rear end of the sleeve 19, or by means of a flange 9 located between a head 6 on the body and the end of the sleeve 19 and having a tongue and slot connection 10, 11 with the sleeve 12. The body is provided with a tapered squaresectioned recess 22 to engage and drive the tool shank positively. In a modification, the outer sleeve 19 may be bell-mouthed and the jaws closed by being drawn rearwardly into the sleeve.
Patent GB-390761-A (GB)
Title: Improvements relating to soles
IPC: A43B13/24
Filed: 1932-08-25
Abstract: 390,761. Boots &c. KAY & CO., Ltd., S. and KAY, W., Elton Fold Mills, Bury. Aug. 25, 1932, No. 30248. Divided on 383,599. [Class 17 (ii).] A method of reinforcing a leather sole with rubber comprises forming a cavity or depression 3 in the under surface of the sole 1 by removing material, for example by cutting or skiving, forming a lip 5, capable of being turned away from the base of the depression 3, by making a slit 4 around the edge of the depression without removing material, inserting a piece of crepe rubber or the like 6 in the cavity 3, and pressing down the lip 5 over the edges of the crepe rubber or the like, the rubber being caused to adhere to the lip 5 and to the base of the cavity 3 by adhesive.
Patent GB-174703-A (GB)
Title: Improvements relating to wind power electric generating plant
IPC: H02K7/18
Filed: 1920-10-26
Abstract: 174,703. Ellehammer, J. C. Hansen-. Oct. 26, 1920. Dynamos, driving.-In driving electric generators by means of wind motors, the speed of a wind motor is maintained approximately con. stant notwithstanding variations in the pressure of the wind by coupling thereto a variable number of generators, or by varying the number of generators connected to the external circuit. In the arrangement shown, the commutators 6 corresponding to the different generators 3, 5 have individual brushes 7 and a common brush 8 which can slide in an axial direction to connect up one or more generators to the load. The brush 8 is connected by a lever 9 to a wind-operated vane 10 which acts in opposition to a spring 11.
Patent GB-885605-A (GB)
Title: Improved method for the production of neutral sulfite pulp
IPC: D21C3/06
Filed: 1959-09-04
Abstract: Semi-chemical neutral sulphite pulp is made by first steaming wood chips, then impregnating them with an aqueous solution of sodium sulphite and bisulphite which has a pH value of 9,5-6 and which contains no free or combined carbonic acid, removing the excess impregnating solution, digesting the pulp without any free liquor at 165-175 DEG  C. and subsequently mechanically defibrating the pulp. During the impregnation period the temperature is preferably kept below 110 DEG C., suitably at about 100 DEG C. or lower. The duration of the impregnation is preferably at least 30 minutes and more preferably 60-120 minutes.  The impregnation of the steamed wood chips may be effected by compressing them and then, while they are still under pressure, introducing them into the impregnation liquor, the chips being allowed to expand in the impregnation liquor by releasing the pressure while they are immersed in the liquor, and the chips being left in the impregnation liquor for at least 3 minutes, preferably more than 10 minutes.  After the defibration step, without appreciable dilution with water, the pulp may be pressed to a dry content of at least 40%.  Prior to this pressing the pulp may be diluted with waste liquor obtained by pressing a previous batch of pulp. The process enables pulps of exceptional brightness to be obtained with a relatively low consumption of chemicals.
Patent GB-711259-A (GB)
Title: Improved heating oil blends
IPC: C10L1/04
Filed: 1952-12-01
Abstract: A process for the preparation of a heating oil blend comprises subjecting a cracked heating oil to a mild hydrofining operation wherein the fraction is contacted with hydrogen and a hydrofining catalyst at a temperature between 500 and 650 DEG F. so that the consumption of hydrogen does not exceed 60 cubic feet per barrel, and thereafter blending the mildly hydrofined cracked fraction with a virgin heating oil fraction.  A crude oil stock is distilled and virgin heating oil and gas oil fractions removed. The virgin heating oil fraction may be caustic washed and may be sweetened by a doctor treat, a bauxite treat or by a Unisol process.  The gas oil fraction is cracked, for example by a fluid catalytic cracking operation, distilled, and a fraction boiling in the heating oil range removed. The cracked heating oil fraction may be first caustic washed, and is then mildly hydrofined at a temperature of 500 DEG  to 650 DEG F., and at a pressure of 50 to 250 lbs. per sq. in., preferably 100 to 200 lbs. per sq. in.  The feed rate is in the range 1 to 16 volumes of liquid per volume of catalyst per hour, preferably in the range 4 to 12 v/v/Hr.  The hydrogen in the gas to the hydrofining operation may be from 50 to 100 per cent.  The catalyst may be cobalt molybdate, but is preferably molybdenum oxide on an alumina carrier in an amount between 5 and 13 per cent by weight based on the weight of the alumina.  The hydrogen consumption is preferably less than 40 SCF/B.  The extent of sulphur reduction does not exceed 35 per cent, and is preferably below 20 per cent.  The mildly hydrofined cracked heating oil is blended with the virgin heating oil to give a blend containing more than 10 per cent, preferably 15 per cent to 60 per cent, by volume of the cracked material.
Patent GB-799167-A (GB)
Title: Improvements in or relating to scanning coil assemblies
Inventor: PHILLIPS PETER HAROLD
IPC: H01J29/76
Filed: 1955-10-24
Abstract: 799,167. Electric coils. PLESSEY CO., Ltd. Oct. 19, 1956 [Oct. 24, 1955], No. 30396/55. Class 35. [Also in Group XL (a)] A former unit for scanning coil assemblies comprises two sleeves 1 and 2 of rectangular cross-section, interconnected by a web 4 of material which when straight extends longitudinally of the sleeves, but may be bent to allow the coils to be threaded on a circular coil. The sleeves are provided with parallel end flanges 3 and 3a. The two coils may be wound simultaneously and then the structure, which may be moulded from a thermoplastic syntheticresin material such as polythene, is threaded on to a core 9 and clamped into position by means of a ridge 5 formed in the web. The starts 8 of the windings are received in slots in the flanges of the sleeves 1 and 2 and are insulated from the core by an extension 7 on sleeve 1 and the web.
Patent GB-1083535-A (GB)
Title: Cyclic silalkylenesiloxanes
Inventor: KNAUB EDGAR WILLIAM
IPC: C07F7/18
Filed: 1966-07-06
Abstract: The invention comprises liquid acyloxy cyclic disiloxanes which are useful as room temperature curing agents for silanol-terminated polysiloxanes and which have the formula <FORM:1083535/C3/1> where R is methyl or ethyl, R1 is a monovalent hydrocarbon, halogenated hydrocarbon or cyanoalkyl radical, n is 2, 3 or 4 and a is 1 or 2. They are prepared by heating compounds of the formula <FORM:1083535/C3/2> where q is 0 or 1, either by distillation under reduced pressure or in a hot tube.  The preferred silanol-terminated polysiloxanes are dimethyl polysiloxanes but other groups may be incorporated. The curing is preferably effected in the presence of a metal salt of a carboxylic acid, the metal being lead, tin, zirconium, antimony, iron, cadmium, barium, calcium, titanium, bismuth or manganese.  The compositions may also contain fillers, e.g. titania, lithopone, zinc oxide, zirconium silicate, silica aerogel, fumed silica, iron oxide, diatomaceous earth, calcium carbonate and glass fibres, and a flame-resisting copper material, e.g. copper metal or its halides or oxides.