baber/WOPTO huggingface dataset:
Patent GB-917523-A (GB)
Title: Improvements relating to the production of rubber composition articles
Inventor: GREENA ROBERT WALTER FREDERICK
IPC: C08J9/00
Filed: 1958-05-31
Abstract: A sheet of vulcanized butadiene-styrene copolymer rubber composition comprises 125-400% of an extending oil based on the weight of the copolymer.  The extending oil may consist of equal parts of naphthenic and paraffinic hydrocarbons.  The unvulcanized composition may contain a minor proportion of a liquid phenol-formaldehyde condensate or similar synthetic resin precursor, and may contain a crosslinking agent therefor, e.g. hexamethylene tetramine.  Aluminium silicate may be incorporated to facilitate doughing of the unvulcanized composition.  The sheet may be made cellular, e.g. a blowing agent such as sodium bicarbonate may be incorporated to inflate the composition before vulcanization is complete.  The example is of preparing pasty, inflatable and vulcanizable mixes, for backing hessian web and tufted carpet, of the rubber, a sulphonated-oil plasticizer, stearic acid, zinc oxide, mercaptobenzythiazole, tetramethylthiuram disulphide, thiourea, clay, sodium bicarbonate, aluminium silicate, light process oil, liquid phenolformaldehyde condensate, hexamethylene tetramine, and sulphur, suitable rubbers being a copolymer of about equal parts of butadiene and styrene and already containing 38 parts of extending oil per 100 parts of rubber and a copolymer of 72-78% with 28-23% of styrene.ALSO:A sheet of vulcanized butadiene-styrene copolymer rubber composition comprising 125-400% of an extending oil based on the weight of the copolymer is made cellular.  A blowing agent such as sodium bicarbonate may be incorporated in the unvulcanized composition for inflating when vulcanization is effected.  The unvulcanized composition may contain liquid phenol-formaldehyde condensate or similar synthetic resin precursor; aluminium silicate may be incorporated to facilitate doughing of the unvulcanized composition.  The examples are of spreading a formulation of the rubber, a sulphonated oil plasticizer, stearic acid, zinc oxide, mercaptobenzthiazole, tetramethylthiuram disulphide, thiourea, clay, sodium bicarbonate, aluminium silicate, light process oil, liquid phenol-formaldehyde condensate, hexamethylene tetramine and sulphur on hessian web and on a tufted carpet, and inflating and vulcanizing by heating for 7 min. at 145 DEG C.
Patent GB-530070-A (GB)
Title: Improvements in games enclosures
IPC: A63B71/02
Filed: 1939-06-15
Abstract: 530,070. Games. BERGERIOUX, R. June 15, 1939, No. 17512. Convention date, June 18, 1938. [Class 132 (ii)] An enclosure wherein games may be played comprises radial boundary nets 45 dividing an annular space into at least three compartments limiting or determining the playing position of each player, horizontal bars 46 limiting the height of the compartments and panels 23 closing the outsides of the compartments. Embankments 35 may be arranged in the compartments and a convex member 28 rotated by a motor 29 may be provided in the centre. In playing games the players, with or without the help of rackets or other ball-striking appliances, endeavour to send a ball or other object into an opponent's goal, viz., a panel 23. The compartments and central portion may be covered by netting. Nets may close the lower portions of the entrances to the compartments. The players may be seated or may lie on their backs and play solely with their feet. The Specification as open to inspection under Sect. 91 describes also enclosures of triangular and rectangular form. This subject-matter does not appear in the Specification as accepted.
Patent GB-214878-A (GB)
Title: An automatic coin freed cabinet for the delivery of cigarettes or other articles
IPC: G07F11/18
Filed: 1923-07-06
Abstract: 214,878. Westell, C. W. H. July 6, 1923. Delivery of articles stored in piles; coin action, thrust.-In apparatus in which the insertion of a coin 14 in a slot 12 thrusts aside a pivoted lever 15 out of the path of a pin 20 depending from a recessed drawer in which the bottom article of a pile rests, a pivoted latch 25 is moved by a spring 27 into the path of the pin 20 and prevents the drawer from being pushed back, if the coin jams in the slot or a bent piece of metal is fraudulently held therein. The lever 15 has a curved enlargement against which the pin 20 acts to allow the coin to be discharged and against which the latch is held by the spring 27 which is attached at 28 to the lever. When the coin drops and the lever 15 returns to its normal position as shown in dotted lines under the action of a spring 17, the lever presses the latch out of the path of the pin 20 since the spring 27 is weaker than the spring 17.
Patent GB-1220497-A (GB)
Title: An improved rubber composition and a method of preparing the same
Inventor: ROY HRISHIKESH CHANDRA
IPC: C08L21/00
Filed: 1968-04-11
Abstract: 1,220,497. Natural rubber-polybutadiene blends. METZELER A.G. 11 April, 1968, No. 17610/68. Headings C3P and C3Q. A composition comprises natural rubber, cis- 1,4-polybutadiene, phthalic anhydride and zinc stearate. The composition may also contain zinc oxide and silica, or calcium hydroxide with or without zinc oxide. The composition may also contain conventional fillers, antioxidants, curatives, &c.
Patent GB-1335066-A (GB)
IPC: G03B21/32
Filed: 1971-05-27
Abstract: 1335066 Securing tape end on reel; feeding cocks EASTMAN KODAK CO 27 May 1971 [4 June 1970] 17637/71 Headings B8M and B8R A device for automatically cinching the leading end of a film 26 around a hub 14 includes a disc 28 having a central frusto-conically shaped cavity partly defined by inclined wall 42. As shown, the film 26 passes to the cavity through a slot 46 so that its leading end may contact the hub 14 rotating with spindle 18. The disc 28 is held stationary by contact with spindle 18 and rod 36. The confined space of the cavity and the high friction coefficient of the surface of the hub 14 which rotates at a higher speed than the supply rate of the film 26 ensures cinching takes place rapidly. Then as the wound film 44 increases in radius around the hub 14 it contacts the inclined wall 42 and displaces the disc 28 along the axis of the spindle 18 against the action of some resilient device 52. As shown, the spindle 18 is horizontal and extends from vertical surface 50. In another embodiment, Fig. 1-4 (not shown), the device is identical but the spindle 18 is vertical, the hub is part of a single flanged reel and the resilient device is replaced by the force of gravity.
Patent GB-167157-A (GB)
Title: Process for the manufacture of allyl arsinic acid
IPC: C07F9/72
Filed: 1921-06-29
Abstract: Allylarsinic acid is obtained by interaction of an allyl halide and an alkali arsenite in strongly alkaline aqueous solution; the properties of the free acid and its calcium, magnesium, mono- and di-sodium, silver, zinc, lead, copper, cobalt, and iron salts are mentioned; the salts are intended for therapeutic use.  In examples, allyl chloride is heated with caustic soda solution and arsenious oxide, the aqueous layer neutralized, excess arsenite removed by calcium chloride, and the calcium salt of allylarsinic acid precipitated by boiling with more calcium chloride and the acid liberated by oxalic or sulphuric acid; or the neutralized aqueous layer is evaporated and the acid extracted with absolute alcohol: allyl bromide is mixed with caustic soda and sodium arsenite, the excess of allyl bromide then distilled off, the residue acidified, and the calcium salt precipitated.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of allyl iodide; this subject-matter does not appear in the Specification as accepted.ALSO:Allylarsinic acid is obtained by interaction of an allyl halide and an alkali arsenite in strongly alkaline aqueous solution; the properties of the free acid and its calcium, magnesium, mono- and di-sodium, silver, zinc, lead, copper, cobalt, and iron salts are mentioned; the salts are intended for therapeutic use.  In examples, allyl chloride is heated with caustic soda solution and arsenious oxide, the aqueous layer neutralized, excess arsenite removed by calcium chloride, and the calcium salt of allylarsinic acid precipitated by boiling with more calcium chloride and the acid liberated by oxalic or sulphuric acid; or the neutralized aqueous layer is evaporated and the acid extracted with absolute alcohol: allyl bromide is mixed with caustic soda and sodium arsenite, the excess of allyl bromide then distilled off, the residue acidified, and the calcium salt precipitated.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of allyl iodide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-774109-A (GB)
Title: Improvements in or relating to mine roof support assemblies
IPC: B60B15/26
Filed: 1953-06-25
Abstract: 774,109. Mine roof supports. EISENWERK WANHEIM GES. June 25, 1953 [April 21, 1953], No,. 17710/53. Class 20(2) Mine roof supports, comprising members I, II connected end to end by tongue 2 and fork 3, are pivoted together by a bolt 8 engaging a slot 4 in the tongue which has two faces 7a, 7b one of which is adapted to be engaged by a wedge 10 in a kidneyshaped hole 9 which allows the wedge, by means of a reduced part 10b, to be moved past the end of the tongue 2 to the other end of the holes. The wedge has projections 10d, 10e at the ends to prevent removal. The members I, II are of box section and have teeth to engage mine props.
Patent GB-573069-A (GB)
Title: Improvements relating to supports for fences and the like structures
IPC: E04H12/22
Filed: 1943-10-28
Abstract: 573,069. Fencing posts. GLAYSHER, W. H. Oct. 28, 1943, No. 17771. [Class 45] A fencing or like post 5 is secured to the ground by a concrete support 1 having a base 2 extending outward on three sides thereof. The support 1 has a tunnel 3 which takes over a rod, &c. 4 previously driven into the ground, and its base 2 may have holes 8 through which securing pegs can be driven into the earth The support 1 is secured tc the adjacent post 5 by a U- shaped metal strap 6 embracing the support 1 and bolted, screwed, &c. at 7 to the post 5. The tunnel 3 may extend to the top of the support 1 to enable a clothes-line prop to be inserted.
Patent GB-580581-A (GB)
Title: Improvements relating to cycle pumps
IPC: B62J11/02
Filed: 1944-09-18
Abstract: 580,581. Cycle tyre inflators. APEX INFLATOR CO., Ltd., and BAILEY, A. A. T. Sept. 18, 1944, No. 17802. [Class 136 (i)] [Also in Group XXVIII] A cycle pump of the kind adapted to be supported between two clips on the frame of a cycle has the elements of a combination lock combined in its barrel a and handle d, relative rotation of which locks the handle to the barrel and thus prevents the pump being removed from the clips. At the end of the barrel and parallel' to it but not in alignment with each other are notches g, h formed one on each of two stepped portions of a gland f. A fixed key piece i is formed as a projection in a thin metal ring l secured in the handle d and can either abut against a step k or slide in the notch h. A similar key piece m which can slide in the notch g is formed on a metal ring o secured in a rotatable bush which projects through the handle d to form a finger piece n and is secured to the piston rod c. The pump is inserted between clips and held there by a spring e. When the handle is turned until the key pieces are out of alignment with the notches, the pump can only be removed by a person knowing the right combination of numerals or letters marked on the finger piece, handle and barrel.
Patent GB-699532-A (GB)
Title: Improvements in or relating to dehalogenation of saturated hydrocarbons
IPC: C07C7/12
Filed: 1951-07-27
Abstract: Monohalogenated aliphatic hydrocarbons are removed from a mixture with saturated hydrocarbons such as paraffins and naphthenes by contacting in the liquid phase at 40-200 DEG  F. with silica gel to cause selective adsorption of the former.  Silica gel of 8-270, preferably 28-200 mesh is used.  The mixture may be passed up through a bed or column of the gel or a slurry may be formed of the gel in the mixture.  C5 to C18 alkylates containing alkyl halides formed, for example, from isoparaffins and ethylene using aluminium chloride or bromide or boron fluoride and hydrogen fluoride as catalysts may be dehalogenated.  In particular, 2,2-dimethyl-4-chlorbutane can be removed from 2,2,4-trimethylpentane.  The minimum gel to oil ratio is 13.7 lb. per gallon for a feed containing .25 per cent chlorine. Small amounts of unsaturated hydrocarbons may be present.  The gel may be regenerated by heating under vacuum, by steaming or by treating with solvents such as ketones, alcohols, and aromatic hydrocarbons.  Examples illustrate the dechlorination of isobutane-ethylene alkylate, iso-octane, and methylcyclohexane. Comparative experiments using bauxite and activated carbon are described.
Patent GB-1036727-A (GB)
Title: Improvements in or relating to variable-gain circuits
Inventor: DEARNLEY JOHN DEAN
IPC: H03G1/00
Filed: 1962-05-09
Abstract: 1,036,727. Transistor amplifier and reactance circuits. PLESSEY CO. Ltd. May 9, 1963 [May 9, 1962], No. 17902/62. Headings H3R and H3T. The gain of a transistor amplifying circuit is adjustable by variation of the base current of an auxiliary transistor 31 connected across the collector or emitter load of the amplifying circuit 30 and operated without any D.C. emittercollector voltage. For signals of small amplitude, the impedance of transistor 31 is linear and dependent on the magnitude of the base current. In the circuit shown, a transistor 30 forms part of a variable reactance circuit used to adjust the frequency of an oscillator 20. In Fig. 2 (not shown), the controlling transistor 31 and a blocking capacitor are connected across the emitter-collector path of a voltage amplifying transistor.
Patent GB-1018208-A (GB)
Title: Improvements in solenoids for operating valves and other mechanisms
Inventor: BLACK ARCHIBALD
IPC: F16K31/06
Filed: 1963-05-07
Abstract: 1,018,208. Valves. BLACK AUTOMATIC CONTROLS Ltd. May 6, 1964 [May 7, 1963], No. 17926/63. Heading F2V. [Also in Division H1]  One end of the armature plunger of an electromagnetic valve forms a moving valveclosure member, which armature is housed in a non-magnetic guide sleeve 7 the interior of which is splined 11, or axially grooved to form ducts, for the free passage of fluid. The sleeve may be rolled, crimped, moulded, drawn or extruded, and in the case of metallic sleeves the splines or grooves reduce eddy current losses. The inner end 8 of the sleeve 7 is bell-shaped to form the valve chamber and is threaded on to the valve body. The plunger may operate apparatus other than valves and may be separate from the armature.
Patent GB-1293622-A (GB)
Title: Stabilising developed photographic silver images
Inventor: BERTHOLD WERNER
IPC: G03C1/43
Filed: 1970-04-15
Abstract: 1293622 Stabilizing developed photographic silver images AGFA-GEVAERT AG 15 April 1970 [15 April 1969] 17945/70 Heading G2C Photographic silver images are produced by exposing a photographic silver halide material, developing in a bath containing at least one compound of one of the formulae: - wherein R<SP>1</SP> is mercapto; R<SP>2</SP> is a substituted or unsubstituted amino group; R<SP>1</SP> and R<SP>2</SP> together may complete a 2-mercapto-1, 3, 4-thiadiazole ring; X is O, S or NR<SP>3</SP>; R<SP>3</SP> is H, alkyl having up to 8 carbons, aryl, aralkyl, cycloalkyl or amino which groups may be substituted; and Y is alkylene having up to 10 methylene groups, alkylene having 3-10 methylene groups which are interrupted by one or more hetero atoms or groups, cycloalkylene, arylene or aralkylene, Y being attached to the heterocyclic rings either directly or via an oxygen or sulphur atom or an imino group, and stabilizing the unexposed and undeveloped silver halide. One or more developing agents e.g. hydroquinone may be present in the photographic material and development may then be initiated with an aqueous alkaline initiator bath. The development bath preferably contains 0À5-10g per litre of the compound(s) defined above, many examples of which are listed. The stabilizer bath preferably contains ammonium thiocyanate and may contain formaldehyde or cyclohexanonesodium bisulphite addition compound. The stabilized black silver images have improved keeping quality on prolonged storage under extreme climatic conditions owing to the presence of the heterocyclic compound(s) defined above in the development bath. Reference has been directed by the Comptroller to Specification 1,138, 587.
Patent GB-218109-A (GB)
Title: Improved construction of garment hanging appliance
IPC: A47B61/02
Filed: 1923-07-11
Abstract: 218,109. Schuman, Ltd., H., and Schuman, J. July 11, 1923. Garment racks.-The base 1 fixed in the wardrobe has end plates 2, 3 carrying two tubes or rods 4 arranged parallel to each other and to the base. A sliding rod 5 projecting through a hole in the front plate 3 rests on and between the rods 4 and carries at the ends depending plates 6, 8 supporting a rod 7 below and parallel with the other rods. The rear plate 8 may be continued upwards into a slot 9 in the base to prevent the bottom tube 7 from swinging.
Patent GB-831192-A (GB)
Title: Improvements in and relating to apparatus for injection moulding plastic materials
IPC: B29C45/50
Filed: 1956-06-11
Abstract: 831,192. injection moulding machines. WTJCHER, R. June 11, 1956 [June 24, 1955 ; Oct. 26, 1955], No. 17986/56. Class 87(2). Apparatus for injection moulding comprises a screw 62, Fig. 8, rotatable within a heated cylinder 63 for feeding and plasticizing material supplied thereto, valve means 66 at the forward end of the cylinder 63, a diffuser head 69 on the screw 62 formed to afford a series of narrow passages 70 through which material is forced by the screw and including means for closing the passages 70 while injection is taking place, and means for effecting relative motion between the screw and the cylinder to effect injection moulding by piston action of the head 69. In Fig. 8, the passages 70 are closed during injection by means of a valve disc 72 slidably carried by a stud 71 secured to the head 69. While the screw 62 is rotating, material fed thereby pushes the valve disc 72 forwardly and passes through holes 73 in the disc 72. The cylinder valve 66 has a central bore 67 and lateral ports 68 and is slidable in a plug 65 in the end of the cylinder 63. The valve 66 is moved to the open position shown by engagement with a mould orifice (not shown). Fig. 5, shows a modified diffuser head 26 having a flap valve 49 pivoted at 50 in front of each peripheral passage 48. In, Fig. 7 (not shown), an intermediate cylinder is arranged between the heated cylinder and screw, the  intermediate cylinder being fixed as regards longitudinal movement relative to the screw. Fig. 4 shows an arrangement whereby a two part mould 12, 12a is moved towards an injection cylinder 20 by means of a ram 47. The two parts of the mould are mounted on plates 40, 41 slidably mounted on bars 44, 45 and can be closed by a ram 43 carried by a plate 42. Specification 831,193 is referred to.
Patent GB-407583-A (GB)
Title: Improvements in and relating to time switching devices
IPC: H03K17/288
Filed: 1933-06-23
Abstract: 407,583. Electromagnetic switches. MULLER AKT.-GES., C. H. F., 24, Rontgenstrasse, Hamburg, Germany. June 23, 1933, No. 17987. Convention date, July 5, 1932. [Class 38 (v).] Relates to a time switch of the type in which a charged condenser 3 is connected to the grid of a valve 2 to render it conducting to actuate a relay 8, the period for which the valve is conducting being controlled by a variable resistance 11 shunting the condenser. According to the invention, a condenser 16 is switched in parallel with the condenser 3 when the arm 12 has traversed the resistance 11 and contacts with the bar 15, so that the arm 17 then traverses the same resistance 11 to give a new range of time intervals. In a modification the charging period of a condenser is utilized and three condensers replace the two condensers 3, 16 (Fig. 2, not shown). The condensers are charged from a rectifier 4 over a switch 9, and the valve 2 is preferably of the type in which the discharge continues after cessation of the exciting grid potential, and is actuated by A.C. on its anode.
Patent GB-968579-A (GB)
IPC: G06K19/00
Filed: 1963-05-08
Abstract: 968, 579. Mechanical calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 8, 1963 [May 9, 1961; July 10, 1962(2)], No. 18117/63. Heading G4B. A member is moved to a desired position to display a particular character and an electrical representation of its position is also given. In one embodiment, Fig. 1, a number of bands 7 are movable by means of a projection 11 to display a particular character in a window. The assembly of bands is placed in a drawer 21, Fig. 4, and as the drawer is pushed in the projections 11 position rods 61 according to the character displayed. Each rod 61 carries a contact 39 which connects a conductor 35 with one of conductors 37. Contacts 39 are energized in succession to provide a serial read out. In another embodiment, Figs. 9, 10 a cylinder 114 is provided with characters 116 and a stepped surface 125 which depresses a rod 121 which makes contact between a conductor 123 and one of a set of contacts 124. In a similar embodiment, cylinder 114 is provided with a series of depressions arranged on a spiral and block 120 is provided with sets of holes, the block 120 being sensed by plungers one in each set of which travels further than the others when it registers with a depression in the cylinder 114. In yet another embodiment Fig. 11 (not shown) a disc having a stepped cam surface positions a contact-making member in accordance with a character displayed on the periphery of the disc.
Patent GB-757500-A (GB)
Title: Improvements in and relating to animal feeding devices
IPC: A01K5/02
Filed: 1953-06-30
Abstract: 757,500. Animal feeding - appliances. JOPSON, F. J. June 30, 1954 [June 30, 1953], No. 18154/53. Class 5 (2). A feeding-appliance for animals comprises a trough 1 automatically supplied with food from a hopper 3, the supply being stopped or restricted when a lid 2 over the trough is lifted by a feeding animal, a cam on the lid acting to rock the hopper into such a position that the outlet is closed. The trough and hopper may be secured together and mounted in a frame 6 to swing about a pivot 7; alternatively, the trough may be separate from the hopper and sufficiently wide so that food will not be spilled when the hopper is rocked. The lid 2 is pivoted in the frame and carries a cam 16 engaging the front of the hopper to rock it about its pivot 7 when the lid is raised by an animal seeking food. The outlet from the hopper is controlled by a pivoted flap 9 which is normally open but is closed by an adjustable abutment 13 when the hopper is rocked.
Patent GB-247084-A (GB)
Title: An improved strainer for domestic sinks and like purposes
IPC: E03C1/264
Filed: 1925-07-16
Abstract: 247,084. Bainbridge, G. July 16, 1925. Strainers fitted at end of pipes.-A strainer for sinks &c. comprises an inverted perforated tray 4 with a depressed central portion 2 to fit over the discharge outlet, into which fingers 3 project to hold the strainer in position.
Patent GB-596059-A (GB)
Title: Improved automatic cam feed mechanism for metal cutting and like machine tools
IPC: B23Q5/34
Filed: 1945-07-17
Abstract: 596,059. Drilling-machines. PENNY, F. G. July 17, 1945, No. 18275. [Class 83 (iii)] In an automatic cam feed-mechanism, fine adjustment to the tool is provided by means of an eccentrically pivoted lever. The toolcarrier 1 rotates in a head 5 which together move vertically, such movement being controlled by a cam 9 through a lever 7 linked to the head. The lever is pivoted about a shaft 16 by an eccentric bush 15, the eccentric being adjustable by a crank 19 through worm gearing 17, which adjustment is translated to the toolcarrier by a link 6. The feed-cam is driven from the tool-spindle drive-shaft 4 and may be manually operated.