baber/WOPTO huggingface dataset:
Patent GB-1221824-A (GB)
Title: Workpiece positioning and feed apparatus
IPC: B23Q7/18
Filed: 1968-04-09
Abstract: 1,221,824. Work transferring; feeding workpieces. KOPPY TOOL CORP. 9 April, 1968 [13 April, 1967], No. 16906/68. Headings B3B and B3W. Apparatus for transferring tubular workpieces 64 from a work loading station 63 to a machining station 102 and then to an unloading station 104, comprises a workpiece orienting station 100 placed between the loading and machining stations to rotate and longitudinally position each workpiece before it reaches the machining station. The orienting station 100 comprises a fluid pressure operated slide which feeds a mandrel head 138 into the end of each workpiece 64 and pushes it longitudinally against a stop 190, the mandrel head 138 being also rotatable at least one revolution in one direction and then back again to a reference position to engage a lug 148 into a pre-cut recess 194 in the end of the workpiece to rotationally orientate the workpiece. The transfer apparatus comprises a pair of wheels adjustably positioned along a horizontal shaft 20, each wheel having recesses 42 and magnets 44 for receiving and holding the workpieces 64 as they are fed down a gravity feed device in a stepwise path and emerge sequentially opposite an empty recess 42. At the machining station 102, which may be a punching or cutting station, a fluid pressure operated slide advances the workpieces 64 longitudinally to the machining tools and, after the operation is completed, retracts the workpiece. The slide may incorporate a rotating mandrel head to allow the workpiece to be rotated during its machining operation, and may include a radial locking pin, or an internally gripping chuck, or edge gripping jaws to positively move the workpiece. The chuck or gripping jaws are spring operated and release a workpiece by a cam and striker device when the slide is fully retracted. The workpieces 64 are unloaded from the apparatus by means of rods 234. The indexing of the apparatus is driven by an electric motor 68 acting through a clutch to rotate a cam groove which rotates the wheels carrying the workpieces 64. The cam groove includes a dwell period during which the wheels are stationary and orienting, feeding, machining, and retracting of the workpieces is carried out. Automatic electro-fluid pressure controls are provided to prevent indexing before a machining operation is complete. A plurality of the transfer apparatus may be arranged in sequence to build a production line, each one feeding its output into a succeeding apparatus.
Patent GB-722320-A (GB)
Title: Improvements in the construction of chemically resistant reaction chambers or towers
IPC: C01B17/84
Filed: 1951-07-17
Abstract: A tower or chamber for reactions between liquids and gases is formed of an exterior framework from which are suspended sheets of chemically resistant heat-weldable thermoplastic synthetic resinous materials which sheets are welded together at their longitudinal and transverse <PICT:0722320/III/1> edges to form a closed curtain within the framework, the curtain being secured longitudinally closely against the framework members by means of stirrup-like pieces made of the same or similar chemically resistant material, welded to the curtains and attached to the framework.  The invention is particularly applicable to towers for the production of sulphuric acids, as illustrated in Fig. 3.  The framework is made up of vertical members M carrying at their upper portion a horizontal frame C to the inside of which is fastened a wooden beam T.  From this beam sheets of the synthetic resinous material are secured laterally by stirrups 2 to vertical members 3 which are placed at intervals between the main uprights M.  Further lateral support is provided by wooden posts 5 supported on horizontal cross beams 6 which, in turn, are secured to the main upright M.  The roof of the reaction chamber 7 is formed of the same material as the walls and is welded thereto; stirrups 8 secure the roof 7 to horizontal supporting members S. Reagent liquid, in this case sulphuric acid, is fed to the reaction chambers by pipes U which may be made of the same synthetic resin. The base of the tower rests on concrete P with a layer F of lead.  A vat G made of any suitable chemically resistant material is placed at the bottom of the tower and secured to the synthetic resin wall.
Patent GB-1398041-A (GB)
Title: Method of lithographic printing
IPC: B41M1/06
Filed: 1973-04-09
Abstract: 1398041 Printing processes FUJI PHOTO FILM CO Ltd 9 April 1973 [7 April 1972] 16988/73 Heading B6C A lithographic printing plate imaged and prepared photographically is used in a machine in which the damping liquid incorporates colloidal silica. Citric acid, butyric acid, tartaric acid, potassium phosphate and phosphoric acid may also be added. As a wetting agent the liquid may contain glycerine, an inorganic metal salt, a protective colloid or a surface active agent.
Patent GB-851427-A (GB)
Title: Improvements in or relating to earth well drilling systems
IPC: E21B4/02
Filed: 1958-05-28
Abstract: 851,427. Well boring. DRESSER INDUSTRIES Inc. May 28, 1958 [June 10, 1957]. No. 16989/58. Class 85. A turbine driven drill unit is provided with means giving a continuous indication of the bit speed, by means of across tie signals transmitted through the driving fluid to recording means disposed outside the bore-hole. The unit 30, Fig. 3 rotates a pump 46 which feeds liquid through an adjustable valve 46 to a pressure responsive switch 42 and also rotates a cam mechanism 41c, 41f through reduction gear means 47, the cam mechanism actuating a switch 42. The switches 41, 42 are connected as shown to a battery 40 and a solenoid which is disposed within a shell 39. The solenoid controls the movement of a valve 38 and thereby the flow of drilling fluid through a passage 37. In a modification, Fig. 5, the unit 30 drives a thrust cam 70 through a clutch 50, and speed reduction gearing 47; the cam follower 71 actuating a plunger 72 having a valve head 381.
Patent GB-255074-A (GB)
Title: Improvements in or relating to the preparation of emulsions or suspensions
IPC: C08L95/00
Filed: 1926-07-07
Abstract: 255,074. Baume, G., Chambige, P., and Boutier, D. July 9, 1925, [Convention date]. Emulsions, making. - Emulsions in which water is dispersed in the principal ingredient are prepared by forming a basic mixture comprising the principal ingredient with the addition, if desired, of dispersing and other agents such as oils, animal and vegetable fats, residues of distillation of oils, fatty acids or stearic pitch, adding an emulsifying agent such as soap, in solution in a substance capable also of dissolving the principal ingredient, together with a little water, and finally adding the remainder of the water with agitation. Oils derived from coal-tar distillation, alcohols, ketones, ethers, and their halogen derivatives are referred to as suitable, solvents. Elastic properties may be imparted to the emulsions by the incorporation, into basic the mixture, or into the emulsion itself of tartrates, glycerine esters or aromatic alcohols. Protective colloids may also be incorporated e.g. gelatines, glues, gums, seaweed extracts albumens, or casein, or magnesia, ammonia or other .soaps. Substances employed as principal ingredients are bitumens, tars, asphalts, petroleum pitch. products derived from the distillation at low or high temperatures of coal, peat, lignite, &c., petroleum and petroleum distillation products, oils, iats and fatty substances, stearic and similar pitches, rubber, and rubber products. The emulsions are stated to be thick at ordinary temperatures, easily rendered fluid by warming, and easily precipitated by dilution with water or dilute solution of an electrolyte : they may be used as impermeable and other coatings, particularly for roads, in which case they are applied in the fluid condition and precipitated, after thickening, by rolling or sprinkling with water or a solution of an electrolyte.
Patent GB-772363-A (GB)
Title: Improvements in or relating to jet propulsion nozzles
Inventor: JOHNSON CHRISTOPHER LINLEY
IPC: F02K1/04
Filed: 1954-06-10
Abstract: 772,363. Jet propulsion plant. ROLLSROYCE, Ltd. April 5, 1955 [June 10, 1954], No. 17153/54. Class 110 (3). A supersonic jet propulsion nozzle has two coaxial annular nozzle throats 24, 28, the normal to the mouth of the inner throat 24 making an angle with the nozzle axis 26 substantially equal to the calculated angle of refraction for the design Mach number. A turbine casing 16 supports an annular member 19 having a lip 25 and an inner coaxial bullet member 17 by struts 18 so forming an outer annular passage 21 having a throat 28 and an inner annular passage 21 having a throat 24, the inner passage being similar to the nozzle described in Specification 668,344. A cylindrical outer wall 27 slides over the casing 16 from the position shown, where it provides a convergent nozzle'for subsonic and sonic jet velocities, to the position shown in broken lines where it provides a convergent-divergent nozzle for supersonic jet velocities. The outer wall 27 is operated by pneumatic rams 29 or the like and may be retractable to a position upstream of the throat 28 to provide a larger exit area for starting. The cross-sectional area of the throat 28 is preferably less than that of the throat 24 and the expansion ratio associated with the outer throat 28 is preferably the greater. In a modification, the outer wall 27 is non-adjustable and has its downstream edge fixed in a position between the throat 28 and the lip 25. The nozzles may be other than circular, e.g. elliptical. The Provisional Specification also describes an embodiment similar to that shown in Fig. 1, but in which the member 19 is omitted so that there is only one annular nozzle throat.
Patent GB-458120-A (GB)
Title: Improvements in or relating to the production of chlorinated rubber products
IPC: C08J3/12
Filed: 1935-06-14
Abstract: Finely divided solid chlorinated rubber is obtained by contacting a preferably preheated solution of chlorinated rubber in a volatile solvent while in a fine state of division with a preformed atmosphere comprising essentially the superheated vapour of the solvent.  The process is preferably conducted at sub-atmospheric pressures.  In one method of carrying out the invention the solution is sprayed into a tower up which a current of heated vapour is flowing, the particles of chlorinated rubber falling to the base of the tower; the vapour is preferably admitted tangentially to the sides of the tower to lessen the tendency of the particles of chlorinated rubber being carried away by the stream of vapour.  Specifications 112,965, [Class 32], and 419,728, and 425,769, [both in Group V], are referred to.ALSO:Finely divided solid chlorinated rubber is obtained by contacting a preferably preheated solution of chlorinated rubber in a volatile solvent while in a fine state of division with a preformed atmosphere comprising essentially the superheated vapour of the solvent.  The process is preferably conducted at sub-atmospheric pressures.  In one method of carrying out the invention, the solution is sprayed into a tower up which a current of heated vapour is flowing, the particles of chlorinated rubber falling to the base of the tower; the vapour is preferably admitted tangentially to the sides of the tower to lessen the tendency of the particles of chlorinated rubber being carried away by the stream of vapour. Specifications 112,965, [Class 32], 419,728, and 425,769 are referred to.
Patent GB-241287-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1924-07-17
Abstract: 241,287. Automatic Telephone Manufacturing Co., Ltd., Ostline, J. E., and Passmore, W. O. July 17, 1924. Automatic exchange systems. - Large private 'branch exchanges are reached over a group selector E which seizes a relay group R, containing the usual battery feed, ring- ing and supervisory arrangements, and associated with one or more non- numerical switches L1, L2 which hunt in succession for an idle line. In the system described, the switches L1, L2 are 25-point homing switches of known type, with two diametrically opposed sets of wipers to enable them to serve 50 lines. The home positions may have an outgoing line. The switch L1 which operates first serves one-way trunks, and the switch L2 two-way, but the proportion may be varied. P.B.X. subscribers are called by the same number of digits as ordinary subscribers, but the final digit has no selective function and merely initiates the operation of the hunting-switches. The relay group R is provided with means for removing the busy signalling condition while impulses are coming in, if the subscriber dials on receiving the busy signal. Detailed operation. When the relay group R is seized, line relay 4 energizes release relay 8. The first impulse of the final digit energizes relay 13, which locks up and completes a hunting circuit for the stepping magnet 22 of switch L1 under control of test wipers 23, over which the test relay 17 is short-circuited by busy grounds. If the switch reaches its fifteenth terminals 51<1>, which have no outgoing line, a circuit is made over the test wiper for relay 40, the resistance of which is low enough to keep relay 17 short-circuited and high enough to prevent operation of the stepping magnet. Relay 40 locks up and connects up the wipers and stepping magnet 46 of switch L2, which hunts in the same way as switch L1. Supply and control of ringing current. When an idle line is found, test relay 17 cuts off relay 13 which completes the ringing circuit. The energization of ringing trip relay 31 when the called party replies completes the loop to the back bridge reversing relay 35. Release. When the calling party hangs up, relay 4 releases relay 8 to release the operated relays in the group R and the preceding switches.- The relapse of relav 40 completes homing circuits for switches L1, L<2>. Busy signalling arrangements. If the switch L2 reaches its fifteenth terminals, 54, relay 17 pulls up and the grounding of the test wiper energizes busy relay 37 which locks itself, unlocks relay 17, and inserts a normally short-circuited resistance 36 between the wire BF carrying busy tone and flash, and the lower talking wire. Ifthe subscriber dials at this stage, relay 13 pulls up again, disconnects the busy wire and replaces a short-circuit round resistance 36. This is to guard against premature release, which would otherwise take place if the operating time of relay 4 were so increased by resistance 36 as to allow the release relay to fall back. Specification 233,793 is referred to.
Patent GB-863041-A (GB)
Title: Improvements in electric snap action switch device
IPC: H01H61/06
Filed: 1958-05-29
Abstract: 863,041. Thermal switches. SIGNAL-STAT CORPORATION. May 29, 1958 [June 6, 1957], No. 17221/58. Class 38 (5). [Also in Group XIII] An element, especially for a thermal flasher, consists of a spring metal sheet of, for example, rectangular, circular or semi-circular shape, formed with a closed-end slot 16 extending along and parallel to one edge so as to provide a narrow strip 20 and a larger main body 21. The latter is deformed into a shallow V-shape and fixed at the apex of the V, and the sheet is heated by current passing through it, the relative expansion between the two parts of the sheet causing the latter to snap over centre and actuate contacts, Figs. 6-9 (not shown). Specification 761,713 is referred to.
Patent GB-1407908-A (GB)
Title: Alpha-numeric character display devices
IPC: H01L25/075
Filed: 1973-04-11
Abstract: 1407908 Alpha numeric displays SONY CORP 11 April 1973 [14 April 1972 and 30 Oct 1972] 17315/73 Heading G5C An alpha-numeric display device includes an array of elements 10 each comprising a pair of light emitting diodes 1. 5 having a common electrode 9 and mounted on a transparent plate 12 with their junctions perpendicular to the plate. The two diodes of each element emit light of different colours. The diode pairs are mounted on the plate which also carries an Al, Cu electrode array N. The diodes are joined together to form the common electrode and are connected to the array 11 by epoxy resin contaming Ag. The remainder of the plate is covered by an opaque resin 14. To facilitate connection to the common electrode the diodes may be staggered lengthwise. Specification 1407508 is referred to.
Patent GB-665696-A (GB)
Title: Seals for relatively rotating members
IPC: F16J15/34
Filed: 1949-06-30
Abstract: 665,696. Stuffing - box substitutes. TRIGGS, W. W. (Caterpillar Tractor Co.). June 30, 1949, No. 17367/49. Class 122(v) A seal for relatively rotating members comprises a pair of rotatable annular sealing members having flat annular abutting faces in sealing contact and annular areas adjacent said faces sloping away from the plane of their abutment gradually to provide a wedge shaped space between the members converging toward the area of sealing contact, the ratio of the widest part of the wedge shape of said space to its length being 1 to 1250 to 1 to 5000. The wedge shaped space may have dimensions of not more than one quarter of an inch long and not more than 200 millionths of an inch at its inner edge. Rings 31, 32 of hard material such as hardened steel are each provided with lapped sealing faces 44, a tapered surface 42 and a recess 40. On assembly the recesses 40 provide an annular chamber for lubricant and the tapers 42 form a narrow channel of capillary proportions which terminates at the surfaces 44 and supplies lubricant thereto. The ring 32 is mounted on a rotating housing 13 through which passes a fixed shaft 15. The ring 31 is mounted on the shaft 15 and is located thereon by a key 35. A pressure ring 33 of rubber is secured to the shaft 15 and is provided with a lip 33<SP>1</SP> which bears on the ring 31 to maintain the faces 44 in contact. In the event of excess pressure developing within the seal, the lip 33<SP>1</SP> is forced away from the ring 31 and lubricant escapes without separating the faces 44. In a modification the rings are pressed together by a plurality of springs which are surrounded by a flexible sealing sleeve.
Patent GB-595908-A (GB)
Title: Improvements in or relating to the forming of undercut holes
IPC: B23B51/00
Filed: 1945-07-07
Abstract: 595,908. Drills and cutters. BRITISH UNITED SHOE MACHINERY CO., Ltd., and HENSHAW, J. N. July 7, 1945, No. 17374. [Classes 83 (iii)] A tapered undercut portion 21 is formed in a blind hole 11 in a work-piece 13 by a tool mounted for rotation about the axis of a bearing in a device of which the tool forms part and comprising a stem 1 substantially less in lateral dimensions than the diameter of the hole at the entering end of the latter and a cutting head 3 which extends further from the bearing axis than does the stem, the tool being entered into the hole without cutting the work until the bearing axis is progressively displaced laterally by the engagement with the edge of the hole of a frusto-conical portion 9 of a guide sleeve 7 either rigidly or rotatably attached to a bracket 8 fixed to the housing of an electric motor (not shown) which rotates the tool through a chuck 5. The complete device is loosely held by the operator and the guide sleeve rolls round the edge of the hole and, as it advances into the hole, displaces the axis of rotation of the tool until it coincides with the axis of the hole, thus forming the tapered undercut portion 21. The tool shown is relieved at 15. Specification 507,358 is referred to.
Patent GB-858576-A (GB)
Title: Improvements in washing machines
IPC: D06F13/02
Filed: 1959-05-21
Abstract: 858,576. Washing - machines. LEWIS APPLIANCE CORPORATION Ltd. May 21, 1959 [June 16, 1958], No. 17385/59. Class 138 (2). A ring 10 surrounding the circumference of an oscillating agitator 4 prevents trapping of articles between the agitator and a raised flat area 12 of the base of a tub 2. The ring 10 may be tubular and mounted on three or more supports 11.
Patent GB-313095-A (GB)
Title: Manufacture of azo-dyestuffs and the application thereof
IPC: C09B45/16
Filed: 1928-07-26
Abstract: 313,095. Soc. of Chemical Industry in Basle. Julv 26, 1927, [Convention date]. Divided on 294,583. Azo dyes are made by coupling an o-oxydiazo compound with a pyrazolone carboxylic acid or carboxylic acid ester, can be produced by the condensation of an oxaloacetic acid ester with hydrazine. The products may be after-chromed on the fibre or converted into dyestuffs containing metal. In examples. (1) 4-chlor-2-aminophenol- 5- or 6-sulphonic acid, 4-nitro-2-aminophenol-6- sulphonic acid or 6-nitro-2-aminophenol-4-sulphonic acid are diazotized and coupled with 5- pyrazolone-3-carboxylic acid. 1-Diazo-2-oxynaphthalene-4-sulphonic acid and its nitrated derivatives are also specified as first components; the products yield violet tints in chrome printing on cotton. The copper compounds of the above dyestuffs dye wool yellow-brown to red-brown, and the chromium compounds yellowto blue-red.
Patent GB-151401-A (GB)
Title: Improvements in automatic train signalling and control systems
IPC: B61L23/12
Filed: 1919-07-11
Abstract: 151,401. Biddle, W. H. July 11, 1919. Combined electrical and mechanical systems, automatic; track apparatus actuating signals other than on trains. - A signal-releasing mechanism mechanically connected to the signal arm and operated by a treadle depressed by a passing train to put the signal to danger is electrically reset to clear the signal, and contacts carried by the releasing-device control the circuits to apparatus in the rear to maintain the required number of signals at danger and reset them to clear when the train has passed ahead. The signal arm h is connected to a slide d which can 'be lifted by the treadle m, k to clear the lower slide e so that the signal is free to go to danger under gravity and move the slide d to the left. Contacts t' closed by the contact d<2> complete a circuit to a magnet x<1> of the signal at the rear, and that magnet draws the lever n clear of the lugs e<3> and allows the bar e of that signal to move to the left, and close contacts v<1> in the circuit of the magnet y<1> of a signal two or more sections behind the train. This magnet, when energized, resets the signal to clear. Economy of current is effected by contacts which are opened when the lever n is in position to lock the slide e in the clear position.
Patent GB-1177913-A (GB)
Title: Sulfur Vulcanizable Oil Extended Elastomeric Material
IPC: C08L23/16
Filed: 1968-04-11
Abstract: 1,177,913. Oil-extended elastomers. COPOLYMER RUBBER & CHEMICAL CORP. 11 April, 1968 [1 May, 1967], No. 17467/68. Heading C3P. An oil-extended, sulphur-vulcanizable, synthetic, elastomeric material is prepared by admixing an extender oil for synthetic elastomers with a sulphur-vulcanizable synthetic elastomeric material comprising at least one interpolymer prepared by interpolymerizing a monomeric mixture of ethylene, at least one higher alpha - mono - olefin having 3-16 carbon atoms and at least one polyene, the oil being added in an amount to reduce the Mooney plasticity, and to produce an oilextended elastomeric material which has an unsaturation level of 2-25 carbon-to-carbon double bonds for each 1000 carbon atoms. In the examples terpolymers of ethylene, propylene and 5-ethylidene-2-norbornene are cured and compounded with highly naphthenic non- staining extending oil, carbon black, zinc oxide, stearic acid, mercaptobenzothiazole, tetramethylthiuram monosulphide and sulphur.