baber/WOPTO huggingface dataset:
Patent GB-316249-A (GB)
Title: Photographic camera
IPC: G03B17/50
Filed: 1929-04-13
Abstract: 316,249. Liberman, A. I. July 26, 1928, [Convention date]. Cameras fitted with means for treating negatives. -A camera for producing negative or positive pictures on strips of film or paper comprises two adjacent sets of exposure-making and developing devices, the exposure, film feeding, and severing being effected by hand, and the exposed strips being then passed through the developing devices which may be driven by hand or by clockwork. As shown in Fig. 1, film from the roll 4 passes to the grippers 13 and 14 which are caused to grip the film by raising the lever 17, the latter being slidable in the rear partition 12 to draw the film into the exposure position and feed its lower end between the roller 19 and the roller 18, which may be pulled outwards by the knob 31 to facilitate this operation. After exposure, the strip is severed by the hand-operated knife 7 and is fed between the endless bands 20 and 21 past the rollers 24 and 25 to the tanks 32 and 33. The upper parts 34 of the tanks carrying the rollers, around which pass endless bands 36 and 37 adapted to carry the strip round the roller 40, are fixed, and the lower parts 35 containing the developing liquids are adapted to be raised to seal the tanks when not in use. The drive is applied to the spindle 53 by a handle on the spindle, or by clockwork mechanism 59 which may be brought into operation by a toothed clutch. The spindle 53 drives the endless bands of the developing apparatus, and is geared to a cam 76 which makes a complete revolution during each cycle of operations. To start the developing apparatus, a rod 80, normally pressed to the right by the spring 85, is pulled to the left, thereby lowering the parts 35 of the tanks through links. 95 and 96, withdrawing the brake 79 from the clockwork mechanism, and removing the stop 77 from the cam 76. Two additional toothed clutches are provided on the spindle 53 in order that the two developing devices may be operated separately or both together. The clockwork mechanism is regulated by a governor, and operates a bell, ringing at the time the strip enters each tank and is ejected from the apparatus. The camera portions (shown by dot and dash lines) of the apparatus may be made as detachable units. By suitably choosing the material a positive may be taken in one half of the apparatus and a negative simultaneously taken in the other half.
Patent GB-114885-A (GB)
IPC: H05B3/60
Abstract: 114,885. Campbell, D. F. April 17, 1917. Heating by electricity.- Metal objects are heated for forging, tempering, or annealing purposes, by placing them on stationary supports with means for ensuring good contact and passing current through them in series. As shown, bars A' are clamped by screws F upon blocks B<1>, B<2> of carbon, iron, copper, or other metal, separated by blocks of insulating material, and covered with powdered magnesite or other refractory material to prevent oxidation. The current is adjusted to attain the required temperature after a considerable time.
Patent GB-114906-A (GB)
IPC: H01H85/045
Abstract: 114,906. Hope, V. April 26, 1917. Fusible cut-outs.-Cartridge fuses, of the type in which the fuse wire is housed in a flue or hole in the carrier as described in Specification 22575/13, have the usual spring contact clips C mounted on the carrier E and entering slots formed between the contact plates B and a central partition a<3> on the base. The partition is extended on each side to cover the ends of the slots. The carrier has a spigot rib e<5> to enter a groove in the top of the partition, when the carrier is in position. The contact plates have the usual split grips for the leads or bus-bars and the base has holes for supporting bars as desuribed in Specification 24274/13.
Patent GB-513730-A (GB)
Title: Improvements connected with multiple spindle lathes
IPC: B23B31/24
Filed: 1938-04-14
Abstract: 513,730. Lathes. NATIONAL ACME CO. April 14, 1938, No. 11511. Convention date, Aug. 26, 1937. [Class 83 (iii)] Chucks.-In a multiple spindle turret lathe in which one of the two lower chucking devices is automatically actuated from the cam shaft of the machine, the remaining working portions are. each provided with an arrangement for hand operation of the chucking devices, these arrangements preferably being actuated by a handle lever to be used in common for all the working stations. On the drum housing 4 of the machine is mounted a. supporting arch 3 provided for each working station at which the chucking sleeve is not automatically operated, with a guide bar 5 on which is slidably mounted a sleeve shifter 7 and with an opening 6 for receiving a pin 14 at the end of a hand chucking lever 13 adapted to engage a pin 10 projecting from the sleeve shifter. Each sleeve shifter 7 is provided with an arm 11 and roll 12 which, if the chucking device is left open, is engaged by a cam 16 on further indexing of the drum, so as to close the chucking device. As an additional safety device each sleeve shifter is associated with a spring arrangement 27 tending to move it so as to close the chucking device. The spring may be released by means of a semi-circular plate 28 if it is required to keep the chucking devices open for a larger period. The lower chucking slide 20 which is automatically operated by a cam 23 may be provided with a hole 6a for engagement by the hand lever 13 if it is desired to operate the slide manually.
Patent GB-958638-A (GB)
Title: Improvements in or relating to electrode holders for electric welding machines
IPC: B23K11/26
Filed: 1963-03-22
Abstract: 958,638. Welding by pressure. IMPULSPHYSIK DR. ING FRANK FRUNGEL G.m.b.H. March 22, 1963 [March 24, 1962], No. 11514/63. Heading B3R. In an electric welding machine in which an electrode is pressed against the work by an adjustable spring, the parts which have relative sliding movement as the electrode moves with compression or extension of the spring are made of materials, the friction between which in the static condition is less than or equal to the friction in the dynamic condition. The electrode 10 is clamped in a holder 22 of copper or aluminium having a stem 15 and to which current is fed through leads 21. A spring 19 adjustable by a cap 20 bears on a member 17<SP>1</SP>, e.g. of a fibre reinforced polyamide resin, threaded on to the stem 15. A sleeve 16 of a fluorocarbon resin, e.g. polytetrafluoroethylene, guides the stem 15. In a modification, a sleeve of a polyamide or a fluorocarbon resin is secured on the stem 15. The machine may be used for welding copper strands to aluminium or brass or copper to copper or silver. The stem 15 may be a polyamide.
Patent GB-768796-A (GB)
Title: Mechanism for disintegrating and screening liquid-borne material
IPC: B02C18/00
Filed: 1955-04-21
Abstract: 768,796. Filters; treating sewage. MERGES, H. A., [trading as CONDUXWERK H. A. MERGES KOMM.-GES.]. April 21, 1955 [April 27, 1954], No. 11523/55. Classes 46 and 111. [Also in Group II] Mechanism for disintegrating and screening coarse material carried in a liquid, e.g. sewage, comprises a revoluble screening drum 5, Fig. 1, which is formed with a plurality of circumferentially-extending slots 21 and with cutting elements 24 in its peripheral surface, and a plurality of combs 12 arranged adjacent the surface of the drum and having teeth entering the slots 21. In the form shown, the drum is built up of a plurality of segmental-shaped screens, Fig. 5, which are detachably secured to longitudinal supporting arms 20, Fig. 4, each screen comprising a plurality of circumferentially-extending ribs 17 defining the slots 21 therebetween, and the outer surface of the ribs being provided with notches or recesses 23 to form the cutting elements 24. The ribs of each screen are held together by longitudinal members 25. The latter may be arranged in rows which extend parallel to or at a small inclination to the axis of the drum, and may be formed only in certain drum areas which are arranged in staggered relationship. Each cutting element may taper circumferentially of the drum surface and be wider at its leading edge. The combs 12 are mounted on supporting columns 8 spaced around the periphery of the drum and each comprise a set of spring plates 16, Fig. 4, which are preferably staggered to form an inclined cutting edge. The combs on adjacent columns are preferably staggered axially so as to engage different parts of the drum.
Patent GB-418222-A (GB)
Title: Improvements in and relating to mechanism for operating the brakes of trailer vehicles
IPC: B60T13/58
Filed: 1933-04-20
Abstract: 418,222. Brakes. ARMSTRONG. SAURER COMMERCIAL VEHICLES, Ltd., Sootswood Road, Newcastle - on - Tyne, and IONIDES, P. D., Thames House, Millbank, London. April 20, 1933, No. 11600. [Class 103 (i).] The brakes of a trailer, connected to a tractor by a draw-bar, are operated by a fluid pressure cylinder a on the tractor additional to the tractor-brakes cylinder, by means of a lever g pivoted on the tractor and a cable q leading to the trailer brakes. The cable q is adjustable on the lever g by means of a link n and holes m-m<2> to vary the braking power according to the load. To allow of separation of tractor and trailer, the cable is in two parts connected by a shackle n having pulleys round which the two parts of the cable pass. One of the pulleys has a detachable axle x secured by a snap-on spring pin. In a modified form the link r is connected by a shackle to a length of chain connected to the part s of the cable. The cable is guided between pulleys t mounted on the draught hook k<2>.
Patent GB-128435-A (GB)
Title: Improvements relating to Carburettors for Internal Combustion Engines.
Inventor: GROVE JOSEPH
IPC: F02M31/18
Filed: 1918-07-16
Abstract: 128,435. Grove, J. July 16, 1918 Spray carburettors.-Relates to improvements in the carburettor described in Specification 10115/13, in which the mixture may be directed by a valve either through an exhaust-heated pipe, or over an electrical heater direct to the engine cylinder, and consists in placing the electrical heater at the entrance to the tubular heater, so that whichever course the mixture takes it traverses the electrical heater first. The mixture is produced by air, entering through ports controlled by a valve k, passing a nozzle b located transversely in a constricted portion l, and it then passes over an electrical heater c arranged inside a rotatable cock f which may be turned to direct the mixture through the inlet d of a tubular heater, or direct to the passage g leading to the cylinder. The outlet e of the tubular heater has an extra air valve m loaded by a spring p, the compression in which can be adjusted by rotating a plate t so that a projection thereon enters one of a series of notches s of varying depths in an annular flange r of a plate q. The valve f may be dispensed with, in which case the mixture always passes through the tubular heater.
Patent GB-1415951-A (GB)
Title: Apparatus for storing protective suits
IPC: G21F3/025
Filed: 1973-03-12
Abstract: 1415951 Protective suit and air-lock chamber GES FUER KERNFORSCHUNG mbH 12 March 1973 11714/73 Heading A3V [Also in Divisions A5 and F2] An air lock chamber 1 is provided with at least one entrance opening, closable by a cover 4, to allow a person 40 to enter a protective suit 19 stowed in the chamber and with at least one exit opening which can be sealed on an associated aperture 13 in the wall of a radioactive or toxic chamber 15 to allow a person wearing the suit to enter the chamber 15, closure covers 16, 17 for the aperture 13 and exit opening, respectively, being secured together and swung as a single unit into the chamber 15. The suit is of foil or P.V.C sheeting and has at least a transparent helmet. A tunnel 25 leads from the back of the suit to the entrance opening where it is sealed by means of flanges 28, 30. A cover 26 of the tunnel can be connected to the cover 4 and is hingeably moved therewith. When the wearer 40 is within the chamber 15 he can remove the tunnel from the flange 38 and stow the tunnel with its cover 26 on his back by means of straps 42. An air/communications conduit 34 is connected to the external space 31 or to a supply line 71 through a coupling 37. The lock chamber which is formed as a box (as shown) or sack may contain several suits and associated openings.
Patent GB-1097006-A (GB)
Title: Acetylenic ketones
IPC: C07D333/22
Filed: 1966-03-17
Abstract: The invention comprises acetylenic ketones of formula R-CO-C­C-C­C-R1 and R-C­C-CO-C­C-R1 wherein R and R1 are 5- or 6-membered of fused-ring heterocyclic residue containing at least one oxygen, nitrogen or sulphur atom or combinations of these, which may be substituted; or R1 represents an alkyl group or a radical with a simple or condensed benzenic nucleus which may be substituted.  They may be prepared by oxidation of the corresponding alcohol using, for example, chromic anhydride or active maganese dioxide.  Specified substituents which may be present on R and R1 are halogen alkyl, acyl, trihalogenomethyl, hydroxy, alkoxy, amino, amido, dialkylamino, dialkylamido or nitro.  The alcohol starting materials before or during the process by any of the following methods:  (i) reaction in a solvent of R-CHO or R-C­C-CHO with (alkali metal)-C­C-C­C-R1 or (alkali metal)-C­C-R1 followed by hydrolysis, (ii) reaction in solvent of R-CHO or R-C­C-CHO with (halogen)-Mg-C­C-C­C-R1 or (halogen)-C­C-R1 followed by hydrolysis or (iii) the Cadist and Chodkiewicz reaction of Br-C­C-R1 with R-CHOH-C­C-H.ALSO:Herbicidal and microbicidal compositions comprise a compound of formula:- R-CO-C­C-C­C-R1 or R-C­C-CO-C­C-R1 wherein R and R1 are 5- or 6-membered or fused-ring heterocyclic residue comprising at least 1 -O-, -N-, or -S- hetero atom (which may be substituted) or R1 represents an alkyl group or a radical with a simple or condensed benzenic nucleus (which may be substituted) together with an inert diluent or carrier.  The compositions may be in the form of pastes, pomades, powders, water-dispersible solids, water-miscible liquids or solutions in aqueous or non-aqueous solvents and the compounds may be mixed with known microbicides, none of which are specified.
Patent GB-527789-A (GB)
Title: Improvements in or relating to self-locking nuts and the manufacture thereof
IPC: B21K1/70
Filed: 1939-04-19
Abstract: 527,789. Punching inserts for nuts. ELASTIC STOP NUT CORPORATION. April 19, 1939, No. 11848. Convention date, April 19, 1938. [Class 31 (ii)] [Also in Group XXV] In the manufacture of nuts with elastic locking inserts 100, Fig. 8, the inserts are punched out of a strip 28, Fig. 5, by a punch 26 cooperating with successive nut blanks 58 which act as dies. Holes 92 are punched in the strip 28 by a punch 24 on the reciprocating head 20, Fig. 1, carrying the punch 26. The strip 28 is fed step by step by feed rolls 30, 32 of which the roll 30 is rotated intermittently by a pawl 50 and ratchet wheel 52 operated by a cam 39 on the punch head operating shaft 16. A cam 68 on the shaft 16 actuates, through levers 72, 74 and link 76, a slide 60 having a recess 66 which receives a nut blank 58 and positions it under the punch 26 ; the blanks are received from a groove in the inclined table 10. The nut is formed with a thread 96, while the insert is unthreaded ; the top edge 98 of the nut may be clinched over. Specification 462,150, [Group XXII], is referred to.
Patent GB-201241-A (GB)
Title: Improvements in grabs
IPC: B66C3/08
Filed: 1922-04-27
Abstract: 201,241. Callow, A. M. April 27,1922. Grab-buckets.-In single-chain grabs, (1) the side rods are formed in two parts, C, C<1>, Fig. 6, hinged at c and connected by links D to the bucket hinge E or to some other point on the lower frame l, so that the overall height of the grab is almost the same open and closed; (2) suspension hooks g on the grab head co-operate with shrouds R for automatically engaging and disengaging the suspender ring U; and (3) the grab hanging open on the chain is kept open until grounded by toggle links. For discharging at different levels more than one suspension ring may be used. A grab embodying the features (1), (2) and (3) is shown open and grounded in Fig. 1, and closed and raised in Fig. 2. The suspension hooks g are rigidly attached to a frame G pivoted at f in the grab-head. The frame G supports the upper sheave o and is connected by links J<2> with a pair of bell-crank levers such as J<1>, J pivoted on the grab-head at N. The arms J of the bell-crank levers are connected with levers K pivoted to the lower frame l at k forming toggles J, K. The lower sheave M, or sheaves M, T are mounted in the frame l, the sheave M being carried on an arm L pivoted to the frame at x. The lifting chain H is reeved around the sheaves M, o, T, and secured to the end of a lever Q pivoted in the grab-head at P. The lever Q carries a stud q engaging the lower end of the shrouds R which are pivoted to the grab-head at r. With the open grab resting on the ground, Fig. 1, and the chain H slack, the weight of the parts G, J<2>, 0, o bends the toggles J, K so that the grab is free to close. When the chain has been hauled in and the grab raised, Fig. 2, the pull of the chain H on the pulley o and on the lever Q brings the hooks g and shrouds R to the position shown, and the hooks will push the suspension ring U aside and then engage with its upper edge. On paying out the chain, with the grab suspended on the ring W, the buckets will open until the toggle-levers J, K are in line, with the lower end of the lever K locked by engagement with the lever L. The open grab can now be lifted and lowered, the hooks g being held by the bell-crank levers J<1> in position to be covered by the shrouds R so as to pass down through the ring. When the grab is grounded, Fig. 1, the chain N becomes slack, the sheave M drops and the lever L disengages the toggle-lever K.
Patent GB-675294-A (GB)
Title: Improvements in the manufacture of tris (dialkylamido) -phosphates and their use as acetylene solvents
IPC: C07F9/22
Filed: 1949-05-04
Abstract: Tris (dialkylamido) phosphates of formula OP(NR1R2)3, where R1 and R2 are alky radicals of 1-4 carbon atoms, are prepared by treating phosphoryl chloride, with the dialkylamine in an inert solvent.  R1 and R2 may be methyl, ethyl, n- or iso-propyl, and n-, iso- or tert.-butyl.  The inert solvent used may be benzene, toluene, xylenes, or other hydrocarbons.  In an example, phosphoryl chloride is heated with dimethylamine in toluene to give tris (dimethylamido) phosphate.  The above tris (dialkylamido) phosphates are used to dissolve acetylene, e.g. for storage, or to extract acetylene from other gases.  Other liquids, solids, or absorbent materials may be present.
Patent GB-510478-A (GB)
Title: An improved manufacture of motor fuels by polymerization of olefins
IPC: C07C2/16
Filed: 1938-04-21
Abstract: 510,478. Polymerizing olefines. STANDARD OIL DEVELOPMENT CO. April 21, 1938, No. 11986. Convention date, Aug. 10, 1937. Drawings to Specification. [Class 2 (iii)] Hydrocarbon mixtures containing iso- and normal olefines of 3 to 5 carbon atoms are subjected to the action of sulphuric acid to produce co-polymers of iso- and normal olefines or polymers of iso-olefines alone which are distilled off, the residual hydrocarbons containing substantially no iso-olefines then being treated with 60-80 per cent. sulphuric acid at 170-325‹F. while under sufficient pressure to maintain the liquid phase whereby the normal olefines are isomerized and polymerized. The first stage is effected with say 60-75 per cent. acid at about 150-300‹F. and 300 lbs./in.<2> to produce co-polymerization, or with 50-60 per cent. acid at. below 100‹F. the mixture being heated rapidly to 185-250‹F. to form dimer and trimer of iso-olefines. The time of reaction in the second stage is adjusted to obtain polymerization of 30-50 per cent. of the total olefines, the polymer being separated and unreacted normal olefines subjected to further polymerization. A liquified olefinic fraction consisting mainly of C hydrocarbons, although C3 and C5 hydrocarbons may be present, is purified and passed into sulphuric acid under the conditions above specified. The acid is separated from the product for recycling, and the hydrocarbons are fractionated to recover polymers, and an overhead product which is passed to a second fractionator with reflux coil, a part of the reflux from which, consisting mainly of n-butenes, is passed into sulphuric acid to effect isomerization and polymerization while the overhead and bottoms, mainly butanes and butene-2, may be dehydrogenated to supplement the olefine feed. The n-butene polymer product is fractionated either alone or together with the product of the first polymerization according to the desired anti-knock rating of the product. The products can be hydrogenated and blended with other motor fuels. In an example, a cracked butane cut containing 7-10 per cent. isobutene and 16-20 n-butenes is passed in liquid phase into 60 per cent. sulphuric acid at 225‹F. The polymer is equivalent to about 50 per cent. of the total olefines and is a co-dimer of iso- and nbutenes. The unpolymerized material contains 0 to 0.5 per cent. isobutene and 12-14 n-butenes. It is treated with acid under similar conditions giving a polymer which is 90 per cent. dimer and 10 trimer. The dimer cut is hydrogenated. The Specification as open to inspection under Sect. 91 comprises also the treatment of initial mixtures containing mainly n-olefines with 60-80 per cent. sulphuric acid at 170-325‹F., and examples describe the polymerization of such mixtures containing n-butenes with 70 per cent. acid at 225‹F. and 400 lb./in.<2> This subject-matter does not appear in the Specification as accepted.
Patent GB-527844-A (GB)
Title: Improvements in or relating to electrical insulating materials
IPC: H01B3/18
Filed: 1939-04-21
Abstract: 527,844. Impregnating-compositions for electric insulation. PIRELLI-GENERAL CABLE WORKS, Ltd., and ASHFORD, B. O. April 21, 1939, No. 12017. [Class 140] [Also in Group XXXVI] An electrical insulating or dielectric material comprises glass threads, for example tape woven from 'continuous filament threads, impregnated with a viscous liquid chlorinated polyphenyl or a derivative thereof, e.g., pentachlordiphenyl or its oxide or a chlorinated polyphenyl derivative of an aliphatic compound, e.g., chlorinated dibenzyl, chlorinated diphenyl methane or chlorinated diphenyl ketone (all of 60 per cent. chlorine content). When used in high voltage cables a small proportion of a volatile saturated aliphatic hydrocarbon, e.g., methylene chloride may be used. Pressure compensating devices external to .the cable or an inert gas at superatmospheric pressure within the cable may be provided.
Patent GB-304963-A (GB)
Title: Improvements in mechanical stokers
IPC: F23K3/00
Filed: 1928-04-24
Abstract: 304,963. Does de Bije, A. J. M. A. R. van der. April 24, 1928. Fuel, feeding.-The plunger 5 of a reciprocating fuel feeder is provided on its under side with recesses 16 for collecting coal dust which enters between the plunger and its support. The coal in the recesses is discharged through apertures 17 in the supporting bracket 3. The sides of the plunger are stepped at 18. The upper surface of the plunger is stepped at 9 and 13 and its nose 12 is removable. The plunger is operated by a screw 4 adapted to be driven in opposite directions and at variable speed.