baber/WOPTO huggingface dataset:
Patent GB-466893-A (GB)
Title: Improvements in or relating to electric control systems for direct current drives
IPC: B60L15/00
Filed: 1935-12-09
Abstract: 466,893. Controllers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 9, 1935, No. 34091. Convention date, Dec. 7, 1934. [Class 38 (iii)] Combination of resistances.-Control equipment for a direct-current drive comprises a main resistance provided with tappings 1-4 dividing it into sections, and a variable resistance connected in parallel with each of the sections in succession, one end of the main resistance being connected to one end of the variable resistance and each intermediate tapping being provided with a pair of independent switches 2a, 2b, 3a, 3b, 4a, 4b, for selectively connecting it to either of the effective ends of the variable resistance. The variable resistance is regulated by a commutator-type of switch having end segments A, E, while the switches 2a, 2b, .... are in the form of a drum switch. When the controller is operated the switch 2a first closes to connect the variable resistance in parallel with the first section 1-2 of the main resistance, the variable resistance being then gradually reduced. Switches 2b, and 3a are then closed and the switch 2a opened, the commutator-type switch moving to its initial position. Similar switching operations are effected for each section of main resistance by further operation of the controller. When the main resistance section 3-4 has been cut out, the switches 4a, 4b are closed and share the load in disconnecting. The variable resistance is preferably adjusted to absorb only a fraction of the main current, and its divisions may decrease continuously in ohmic value from the full resistance position to the low resistance position. The main resistance may be used on a vehicle for heating.
Patent GB-321831-A (GB)
Title: Improvements in or relating to starting apparatus for induction electrical motors
IPC: H01H19/46
Filed: 1928-11-20
Abstract: 321,831. Harlow, P. L., and Associated Electrical Industries, Ltd. Nov. 20, 1928. Starters for alternating-current motors; automatic circuit-breakers. -A star-delta starter for induction motors consists of a switch 4, Fig. 1, normally occupying an off position situated between two stationary contact-members 3, and actuating mechanism connecting the switch to a handle 50 whereby a loose-handle effect can be obtained both on the star side and the delta side. The movable contact carrier 17 mounted to rock: about an axis 37 is linked through a connecting- rod 25 to a lever 39 with a roller-end 40 normally resting in a notch of a tripping-member 45 and thus constituting a fixed fulcrum. The opposite end of the lever 39 is forked and is adapted to be moved up and down by a pin 42 actuated by a handle 50. A no-volt or overload release, not shown in the Figure, is arranged to allow the member 45 to move clockwise on its pivot, thus removing it from engagement with the roller 40 for the purpose of bringing about the return of the switch-member 4 to its off position irrespective of the handle 50. A centralizing spring coiled round the axis 37 and having two ends 35 embracing a stationary plug 36 and a movable lug 33 effects the return movement. To prevent premature tripping, the operator, while moving the handle 50 to its starting position. applies pressure to a knob 67 which is arranged to impose a spring check on the tripping parts. Alternatively one of the actuating parts may be provided with a cam surface arranged to hold the tripping parts out of possible action during the initial movement of the handle. The contactmembers are enclosed in an oil-tank and are spring-mounted in known manner so that their surfaces meet with a rolling and sliding action.
Patent GB-912410-A (GB)
Title: Improvements in or relating to ploughs
IPC: A01B17/00
Filed: 1961-09-25
Abstract: 912,410. Agricultural implements. RAUSSENDORF & CO. G.m.b.H. Sept. 25, 1961 [May 9, 1961], No. 34167/61. Class 6(1). A plough 2 is provided with a rotary body 3 rotatable about a vertical axis and formed with tools 7 for turning the earth raised by the plough, the tools being arranged vertically one above the other about the rotary body which is driven by gearing 5 and shaft 6 from a tractor power shaft. The tools are detachable and replaceable.
Patent GB-467111-A (GB)
Title: Improvements in the manufacture of abrasive coated fabric
IPC: B24D11/00
Filed: 1935-12-10
Abstract: 467,111. Abrasive coated webs. CARBORUNDUM CO. Dec. 10, 1935, No. 34246. Convention date, Dec. 11, 1934. Drawings to Specification. [Class 60] Abrasive-coated fabric or paper is made by coating a fabric with adhesive and abrasive grains, winding the coated fabric into a roll and hardening or drying the adhesive while the fabric is in roll form. Suitable adhesives include glue, oil varnish and heat-hardenable synthetic resins. The coated fabric may be rolled under tension and may be treated before rolling to prevent sticking, for example by heating sufficiently to reduce its tackiness or by applying a second coating such as a powdered solid, an air - drying varnish; a solution of a resin in a volatile solvent or a fused thermoplastic resin of sufficiently high melting point. The rolled fabric may be dried or hardened at a pressure below atmospheric, for example by passing air, the humidity of which may be varied, over the fabric. When heat-hardenable adhesives or adhesives containing volatile solvents are used, the adhesive is set by heating. An example describes the use of an oil-modified phenolic resin similar to that described in example 1 of Specification 359,986, [Group V], dissolved in toluol, which' is hardened sufficiently to permit rolling by heating to 350‹ F. Other methods of preventing sticking of adjacent layers in the roll include interleaving with metal foil or lateral spacing strips.
Patent GB-834769-A (GB)
Title: Multiple sheet glazing units
IPC: C03B25/08
Filed: 1958-10-27
Abstract: 834,769. Glass Manufacture. LIBBEYOWENS-FORD GLASS CO. Oct. 27, 1958 [Oct. 31, 1957], No. 34249/58. Class 56. In the treatment of multiple sheet glazing units having two spaced sheets of glass with marginal edge portions fused together, the units, after fusing of the edges, are heated to a temperature above the annealing point of the glass and differentially cooled so that the marginal edge portions are cooled more rapidly than the inward areas to place the edges in compression. The units 23 pass directly from an edge sealing section of a furnace on to a conveyer where they are held upright in spaced face to face relation by racks 29, 37 or 49 for passing through an annealing section which includes a furnace 25 heated by burners 26 followed by the cooling section. As shown in Fig. 5, the units 23 are placed close together in notches in side bars 38 of the rack 37 and held by separators 41 on an upper support bar 40, the central portions shielding each other to retard the cooling so that the edges cool more rapidly. As shown in Fig. 6, the units 23 are mounted on cradles 43 (as in Fig. 12) at intervals along a rack 29 and held by forked fingers 45 on uprights 44 at each side. Heat absorbing shields 46 are supported on posts 47 spaced each side of cradles 43 to cover the central portions only of the units 23. In a modification, electrically heated platens may replace the shields 46. As shown in Fig. 12, air conditioning ducts 50 are arranged adjacent the edges of the units 23 and have a plurality of holes 51 so that cooling air currents 52 are directed on to the edges to be cooled. The ducts 50 and shields 46 may be combined to give a greater temperature differential between the central and marginal areas. The shields 46 may be cloth of heavy gauge wire or metal sheeting or may be in the form of a hollow rectangular bar.
Patent GB-1144348-A (GB)
Title: Improvements relating to pipe clips
Inventor: BISHOP HOWARD JOHN
IPC: F16L3/04
Filed: 1965-08-11
Abstract: 1,144,348. Clamps. WEST MIDLANDS GAS BOARD. 11 Aug., 1966 [11 Aug., 1965], No. 34284/65. Heading E2B. A pipe clamp 10 comprises a mounting portion 13, a seating portion 12 for embracing a pipe and locating formation 26, 27 on the mounting and seating portions, and which is adapted for use on its own for securing a pipe close against a supporting surface and in combination with an attachment part 11 to which it is adapted to be keyed by engagement of the locating formations 26, 27 with complementary formations 25, 28 on the attachment part, for securing a pipe in spaced relation to a supporting surface. As shown, the clamp and attachment part are made of polypropylene and the clamp, with or without the attachment part is secured to a support by a single screw.
Patent GB-521810-A (GB)
Title: Improvements in sound reproducing devices
IPC: H04R9/04
Filed: 1938-11-25
Abstract: 521,810. Loud-speakers. PHILCO RADIO & TELEVISION CORPORATION. Nov. 25, 1938, No. 34333. Convention date, Dec. 14, 1937. [Class 40 (iv)] An annular centring spider for a moving- coil loud-speaker has its inner edge serrated or recessed so as to provide projections 16 which engage the coil former 6 substantially perpendicularly to its surface. The lead-in wires 13, 14 pass through two of the recesses. The parts are secured by adhesive. The outer edge of the spider is also serrated at 3, the projections being embedded in cement applied to its supporting member. The spider is made of corrugated flexible material and is convex in shape.
Patent GB-334129-A (GB)
Title: Improved apparatus for protecting gas mains or the like from the effects of a back fire
IPC: A62C4/00
Filed: 1929-11-11
Abstract: 334,129. Mangiameli, F. Nov. 11, 1929. Mains and pipes.-In order to prevent damage to gas mains, due to back fires, gas is supplied to a burner through two chambers a, c connected by a short pipe f and a coiled pipe g, the pipe f being normally closed by a piston e which is supported in the position shown by a soft or frangible washer i of lead, rubber or parchment secured to the piston by a screw plug. If a back fire occurs, the force of the explosion fractures the washer i and displaces the piston so as to shut off the gas flow through the chamber a before the flame has traversed the pipe g. The removable cover of the chamber c may be fitted with a diaphragm h or vent valve.
Patent GB-1437369-A (GB)
Title: Locking mechanism for locking a shaft within a hub
IPC: B65G39/02
Filed: 1973-07-19
Abstract: 1437369 Shaft couplings O E PETER 19 July 1973 [28 May 1973] 34582/73 Heading F2U An assembly for clamping a hub 9 on a shaft 8 comprises a pair of tapered rings 4, 5 axially movable by (e.g. socket-headed) screws 6 placed radially between inner and outer bushes 1, 2 of which a first (e.g. 1) has back-to-back tapers engaging the rings while the second (e.g. 2) has inner and outer cylindrical faces, the rings 4, 5, each having a circumferential rib 4a, 5a to sandwich one bush (e.g. 2) between resilient rings 7 while the other bush has grooves la housing split rings 3 retaining the rings. The bushes may be split.
Patent GB-325597-A (GB)
Title: Improvements in or relating to coin-controlled apparatus
Filed: 1928-11-24
Abstract: 325,597. Rogers, H. C. I., and Dolman, H. J. Nov. 24, 1928. Testing coins.-A rimmed coin resting upon a partition 20 between a reject shoot 8 and a shoot 9 leading to the coin-freed mechanism is moved to the fight by grippers 15, 16 pivoted at 12. 13' on a hand-actuated slide 2. The grippers arenormally held apart by stops 17, 18 to receive the coin, and on initial movement of the slide to the right the grippers are pressed toward the coin by the spring 14. On further movement of the slide, the coin engages and moves a pivoted arm 21 against the action of a spring 23. When the coin is over the shoot 9, a stud 28, forming an extension of the pivot 13 on the slide, engages a pin 26 on the arm 21, and the arms 10, 11 of the grippers engage stops 24, 25 so that the coin is released and falls into the shoot. The parts are returned by a spring 27. A coin or disc having no rim is held by the arm 21, the grippers sliding over it, and on return movement of the slide 2, the grippers push the coin to the left so that it falls into the shoot 8. According to the Provisional Specification the stops 17, 18 may be omitted, the jaws being arranged to yield sufficiently to receive the coin.
Patent GB-349043-A (GB)
Title: Improvements in or relating to reflectors for very short hertzian waves
IPC: H01Q19/13
Filed: 1929-11-13
Abstract: 349,043. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, and LUDENIA, W., 57, Holsteinischestrasse, Steglitz, both in Berlin. Nov. 13, 1929, No. 34724. Convention date, Nov. 22, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] A parabolic reflector H for very short Hertzian waves is such that the distance from the apex to the focus or focal line is a multiple of the wave-length.
Patent GB-448245-A (GB)
Title: Improvements in or relating to creaming of rubber latex
IPC: C08C1/08
Filed: 1934-12-03
Abstract: Latex is creamed by adding thereto water extractions of a meal or flour made from plants of the genus Amorphophallus class Angiospermae of the botanical phylum Spermatophyta, permitting the latex to stand, and then separating the rubber rich layer from the serum layer poor in rubber.  Amorphophallus Riveri, variety "Konjac" and Amorphophallus Variabilis or Campanulatus may be used.  Tabulated results of creaming tests, using from 0,04 to 0,12 solids of the creaming agent to 100 parts of latex, are given.
Patent GB-451345-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: B23K9/067
Filed: 1934-12-03
Abstract: 451,345. Distant - control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Braden, R. A. ; 509, Cedar Avenue, Collingswood, New Jersey, U.S.A.) Dec. 3, 1934, No. 34747. Convention date, Dec. 1, 1933. [Class 40 (i)] [See also Group XL] The Specification as open to inspection under Sect. 91 describes an arrangement wherein selection, from a remote point or manually, of predetermined broadcasting stations is effected by means of a disc 589, with adjustable contacts 591, mounted on the tuning spindle. The tuning member is driven by an electric motor 337 controlled by forward and reversing push-buttons 343, 341, a magnetic brake 135 preventing further rotation of the tuning member when the contacts 591, 597 close. The push-button 345 de-energizes the brake 135 when it is desired to tune to another station. Indication of the tuning dial and pointer position may be given at the remote point by a calibrated milliammeter 511 in circuit with a variable resistance 517 the slider of which is actuated by the tuning spindle of the receiver. This subject-matter does not appear in the Specification as accepted.
Patent GB-1353387-A (GB)
Title: Cyclic olefin polymers
IPC: C08G61/08
Filed: 1971-07-26
Abstract: 1353387 Cyclic olefin terpolymers PHILLIPS PETROLEUM CO 26 July 1971 [27 July 1970] 34885/71 Heading C3P A copolymer is obtained by ring-opening polymerization of a mixture containing (a) at least 50 parts by wt. of a cyclic mono-olefin having 5 or 7-10 carbon atoms in the ring, and optionally alkyl-substituted, (b) up to 50 parts by wt. of a cyclic polyolefin having either two conjugated double bonds in one ring or two double bonds in different rings of a fused-ring structure, and (c) 0À1 to 10 parts, per 100 parts of (a) and (b), of a mono- or poly-ene having a non-tertiary olefinic group which is not part of a ring. Many examples are given of each type of monomer and of suitable catalysts. The copolymerization of (a) cyclopentene with (b) dicyclopentadiene or norbornadiene and (c) 1-hexane using a catalyst prepared from Et 2 AlCl and molybdenum trichloride dioctanoate or dilaurate is described.
Patent GB-736488-A (GB)
Title: Process for the preparation of an unsaturated aldehyde
IPC: C07C47/26
Filed: 1953-12-15
Abstract: The invention comprises an a -b -unsaturated aldehyde, 2 - methyl - 4 - acetoxy - 2 - butenal, of formula <FORM:0736488/IV (b)/1> It may be prepared by reacting hexamethylenetetramine with 1-chloro-2-methyl-4-acetoxy-2-butene to obtain a complex which is hydrolysed to give the required aldehyde.
Patent GB-1017689-A (GB)
Title: Improvements in electrical couplings
IPC: H01R13/56
Filed: 1964-08-26
Abstract: 1,017,689. Two-part couplings. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 26, 1964 [Aug. 27, 1963], No. 35030/64. Heading H2E. A plug 8, having a relatively rotatable cableprotecting sleeve 12; may be coupled to a socket 1 by a bayonet joint 10, 6, and the arrangement is such that when the plug is fully inserted, further relative arial movement is prevented by locking members 18 carried by the plug and releasable by withdrawing a ring 38, and electrical contact is only made when the plug is rotated to its fully locked position. On insertion of the plug, the members 18 are cammed inwardly against the action of springs 22 by a surface 4 at the entrance to the socket and on withdrawal of the ring 38 to release the plug, they are cammed inwardly by surfaces 38b. The ring 38 cannot rotate relative to the plug and may have an arm by which the plug may be rotated to final position in which its contacts 28 engage contacts 34 carried by the socket. The whole device may be operated by remote control, in which case manipulator supports are provided.
Patent GB-893515-A (GB)
Title: Microfilm record card
Inventor: HERZIG LEONARD A
IPC: G06K19/02
Filed: 1960-10-13
Abstract: 893,515. Mounting pictures. P.C.I. Inc. Oct. 13, 1960, No. 35063/60. Class 11 [Also in Group XX]  A record card 1 for mounting films, as used in card classification systems, has a number of spaced rectangular depressions, such as 5, embossed thereon, corresponding in depth and size to the films to be mounted; each depression has a narrow strip 6 of adhesive material round its periphery, the area within this strip being blanked out as required to form a window in which the film is mounted. The film 13 is placed on the ledge 10 formed by the adhesive-coated rim of the blanked-out window 12, and secured thereto by a heated plunger 15. Fig. 7 shows a card having four such pre-formed depressions, in one of which a film 13 has been mounted. The same design of card can thus be used for mounting one, two, three, or four films, by blanking out only as many window apertures as are needed.
Patent GB-924700-A (GB)
Title: A process for the continuous production of homogeneous rubber-silicic acid mixtures
IPC: B01F7/02
Filed: 1961-09-29
Abstract: <PICT:0924700/IV(a)/1> <PICT:0924700/IV(a)/2> A process for the continuous production of homogeneous rubber-silicic acid mixtures, which may be extended with oil, by the common precipitation of synthetic rubber latices and alkali silicate solution in the presence of neutral electrolytes and by means of acid is carried out by precipitating in an elongated reaction vessel 18 which is divided into a plurality of double chamber, each double chamber being divided by a separating wall 25 and 26 having a liquid overflow opening 28, the size of the opening amounting to 1 to 20% of the surface of the separating wall which is bathed with liquid, each double chamber being charged with a partial stream of acid.  Butadiene-styrene latex is specified.  The precipitation may take place at 15 DEG  to 30 DEG C. Specification 924,699 is referred to.
Patent GB-779631-A (GB)
Title: Improvements relating to internal combustion engines with opposed pistons
IPC: F02B75/28
Filed: 1953-12-17
Abstract: 779,631. Opposed - piston engines. LARAQUE, R. Dec. 17, 1953 [Dec. 18, 1952], No. 35158/53. Class 7 (2). [Also in Groups XXVI and XXXIV] In an opposed piston engine in which each piston is connected to the same crank-shaft through a first connecting rod 14, a rocking lever 16 and a second connecting rod 20, the first connecting rod 14 is connected to the piston and lever 16 respectively by pivot pins 13, 15, which are fixed to the rod 14. Each rod 14 consists of an outer sleeve 14a in the base of which is located a tube 14b screwed into the pin 13 and locked by a nut 17 on the pin 15, whereby the pins 13, 15, are held secured in bearings formed in the sleeve 14a. Each cylinder 1 containing two opposed pistons is supported in spaced cylindrical faces 3 ... 7 in the engine casing, each of which faces is slightly smaller in diameter than its preceding face to facilitate installation of the cylinder. Fuel is injected into the common combustion space through an injector 12 and the outer wall of the cylinder 1 is provided with fins 8 and is surrounded by cooling water jackets. Tie rods 26 ... 28 maintaining the position of the pivot shafts 18 of the levers 16 are disposed in tubular stay members 29 ... 31 of the engine casing, bolts 41 on the ends of the rods 26 ... 28 being adapted to seat in locating recesses in the shafts 18. Lubricating oil is supplied by a pump to the interior of the tubular stay members 29 ... 31 from which it flows through passages 32 ... 34 to the crankshaft bearings 25 and through passages 36 ... 39 to the big-end bearings of the rods 20. In addition some of the oil flows from the stay members 29 ... 31 to the interior of the tube 14b to lubricate the pins 13, 15, and then flows through passage 45 to a labyrinth passage 46 in the piston to cool the piston. The oil is returned through a passage 47 to the annular space between the tubes 14a, 14b, and flows to the sump through a passage 44, the oil in the sump being pumped to a reservoir containing a filter 46a by a second pump 48. Specification 779,632 is referred to.
Patent GB-782333-A (GB)
Title: Process for the manufacture of aryl-chlorosilanes
IPC: C07F7/16
Filed: 1955-12-07
Abstract: A surface-active copper catalyst, used for the preparation of aryl chlorosilanes (see Group IV (a)), may be prepared by decomposition or reduction of a copper compound, or may be in the form of an alloy which may be treated with hydrogen chloride gas above 150 DEG  C. The alloy may be with magnesium, zinc, iron, aluminium, calcium, silicon, cobalt, nickel or silver.  The preparation from copper compounds includes heating copper chloride with iron, aluminium, zinc, magnesium or silicon; reducing copper oxide in a stream of hydrogen; and applying copper hydroxide or a copper salt, e.g. Cu oxalate, to an inert carrier such as pumice and reducing in hydrogen. The catalytic mass may also contain a substance reactive with hydrogen chloride evolved in the reaction, e.g. silicon.ALSO:Aryl chlorosilanes are prepared by passing a mixture of an aryl chloride, which contains a chlorine atom bound to the nucleus and which does not excessively decompose below 400 DEG  C., and a chlorosilane containing at least one hydrogen atom bound to silicon, in vapour phase over a surface-active copper catalyst at 400 DEG  to 700 DEG C.  Examples of aryl chlorides are mono-and tri-chlorobenzenes, dichlorotoluenes, chloroxylenes and chloronaphthalenes.  Suitable chlorosilanes are trichlorosilane, methyl and phenyl dichlorosilanes, dimethyl chlorosilane and methyl ethyl chlorosilane.  The copper may be in the form of an alloy with, for example, magnesium, zinc, iron, aluminium, calcium, silicon, cobalt, nickel or silver, and some of these alloys may be treated with hydrogen chloride gas above 150 DEG C. The catalyst may also be prepared by decomposition or reduction of a copper compound, e.g. a copper chloride may be heated with iron, aluminium, zinc, magnesium or silicon; copper oxide may be reduced by hydrogen; or a copper salt or copper hydroxide may be applied to an inert carrier such as pumice and reduced in a current of hydrogen. Certain copper powders are also suitable. It is desirable to add to the catalytic mass a substance which reacts with hydrogen chloride which splits off during the reaction, e.g. silicon.  The examples describe the preparation of phenyl trichlorosilane and phenylmethyl dichlorosilane.  Japanese Specification 16 (1951) is referred to.