baber/WOPTO huggingface dataset:
Patent GB-1005811-A (GB)
Title: Improvements in or relating to cantilevered work carriers for conveyor systems
IPC: B65G49/04
Filed: 1964-06-25
Abstract: 1,005,811. Reciprocating conveyers. H. G. ABBEY. June 25, 1964, No. 26382/64. Heading B8A. [Also in Division B7] In a conveyer system comprising a track along which wheeled carriers move, each carrier includes a cantilever arm and means to suspend a work load on the arm at a position displaced outwardly from the track and to produce a torque causing one set of carrier wheels to engage the upper flange of one track member and the other set to engage the lower flange of the other member. As shown, channel members C 1 , C 2  constitute the track which includes removable transfer segments 12 and substitute segments 22. Work carriers 13 support plating barrels 14 by a cantilever arm 16, the barrels being rotatable by a motor 30 through gearing 31-33. Fig. 4 shows how the load causes carrier wheels 15A to engage the lower flange of channel member C 1  whereas wheels 15B are brought into engagement with the upper flange of member C 2 . Eccentric bushings 37 permit adjustment of the position of the wheels relative to the flanges. The rail segments 12 normally lie in linear registration with the trackway and are in vertical alignment with work stations therebelow. Each segment 12 is movable downwardly by means of an individual elevator 17 for immersing the barrel in a processing tank at the work station. When the segment 12 is lowered a substitute segment 22 falls downwardly in place of the segment 12 so that sucessive work carriers are able to proceed and skip over any carrier which has been lowered. To maintain a trolley in its exact centre position at a work station, a spring-loaded shoe has a recess for receiving a pin fixed to the rail segment, Fig. 3 (not shown). The trolleys are moved stepwise in one direction by pusher fingers 19 pivotally connected to a reciprocally operated actuator bar 20 operated by an hydraulic device 21. The complete system may comprise a continuous oval trackway having stations for carrying out various operations. Specifications 818,649, 887,204 and 905,926 are referred to.
Patent GB-616447-A (GB)
Title: Improvements in and relating to thermionic valve amplifiers
IPC: H03G3/16
Filed: 1946-09-03
Abstract: 616,447. Valve generating circuits; limiters. PHILIPS LAMPS, Ltd. Sept. 3, 1946, No. 26444. Convention date, Sept. 3, 1945. [Classes 40 (v) and 40 (vi)] A limiting arrangement comprises a negative feedback amplifier in which the screen is connected to a voltage dividing tap on the anode circuit 2, the maximum output being determined by the D.C. screen potential. The voltage divider may comprise condensers 3, 4, inductances or resistances, the screen current being applied via a choke 5 or a resistance. The arrangement may also be employed in an oscillator circuit to limit the maximum amplitude of oscillation.
Patent GB-1414533-A (GB)
Title: Retainers for electrical components
IPC: H01H37/76
Filed: 1973-06-04
Abstract: 1414533 Fuse holders ESSEX INTERNATIONAL Inc 4 June 1973 [28 June 1972] 26455/73 Headings H2E and H2G [Also in Division B3] A dielectric (e.g. nylon) base 26, is fitted with electrically conductive resilient retaining clips 19 (Fig. 4), of e.g. red brass, for at least one fuse cartridge 39, located in through cavities 33 in base 26, removably secured therein by a resilient pawl 37 engaging in rectangular apertures 11a in rear wall 22 of each clip 19. A row of clips is formed from one portion of metal (1) (Fig. 1, not shown) and suitably bent to produce a base portion 4 which may act as a bus-bar, terminals 23 for external connection, and individual clips 19, 19a, which each comprise front walls 17a, rear walls 22a, side walls (21a) and resilient looped member 12, 12a against which the end cap 43 of the fuse snugly abuts when inserted, being supported by portions 8, 8a of the front walls 37, 37a. Each fuse 39 extends through a cavity in base 26 defined by side walls 28, bottom wall 27, and partition wall 30 each having cut away portion 32. The base 26 may be secured to a support by integrally formed apertured ears 38. Flanges 34, 34a are provided in each cavity 33 as a further retaining means for each clip 19, In another embodiment (Figs. 10-12, not shown) the terminal portion 23 may be shaped so as to be crimped to a conductor. In other emdodiments, the fuse clips may be indivudally connected to separate circuits by, e.g. severing central base portion 4.
Patent GB-653895-A (GB)
Title: An improved wheel construction for mounting twin tyres
IPC: B60B11/06
Filed: 1948-10-12
Abstract: 653,895. Vehicle wheels. DUNLOP RUBBER CO., Ltd. Oct. 12, 1948, No. 26493. Convention date, Oct. 21, 1947. [Class 144 (i)] To balance the loads on twin tyres on a cambered road, a twin tyre wheel mounting comprises an outer ring 1 carrying twin tyre rims 8, 9 and having teeth 2 projecting radially inwards, a wheel hub having a radial flange 18 supporting an inner ring 3 which has teeth 4 projecting radially outwards to lie between the outer ring teeth 2, and resilient blocks 5 lying between the teeth of the ring 1, 3. As shown, the outer ring 1 comprises a cylindrical and a conical annulus axially spaced by the teeth 2 (Fig. 2) to leave peripheral gaps 34. The inner ring 3 comprises a hollow annulus 15 from which the teeth 4 extend axially to be secured to the hub flange 18 by transverse studs 19. To limit the relative axial movement between the rings 1, 3, the annulus 6 is provided with stops 22 arranged to lie axially between stops 23, 24 provided on the inner ring 3. To avoid fouling the annulus 6 when the inner ring 3 is nested within the ring 1, the inner ring teeth 4 are provided with detachable crests 4a which are subsequently assembled through the gaps 34 in the ring 1. The resilient blocks 5 (Figs. 6 and 8), which are of rubber with concave peripheral surfaces to allow for the lateral expansion on compression, have metal-plate bearing surfaces 25 bonded thereto which are apertured to allow locating-pins 26 to project outwardly therefrom and engage in locating- holes 28 when assembled in a compressed state between the teeth 2, 4. Fig. 9 shows a combined press 32 and ram 33 for inserting the blocks 5 under compression between the teeth 2; 4, the initial block 51 being inserted freely in the space I and wedges 29, 30 being engaged in space IV to maintain the equal spacing of the teeth for subsequent insertion of the block 5<SP>2</SP> into the space II. The ram 33 may have guides to ensure correct alignment of the pins 26 with the locating-holes 28 on assembly.
Patent GB-258103-A (GB)
Title: Improvements in collar studs
IPC: A44B3/02
Filed: 1925-10-23
Abstract: 258,103. Wood, B. Oct. 23, 1925. Studs.-A collar stud consists of an elongated base 1 curved to the shape of the neck, a shank 2, and a head having two branched, downwardly curved arms 3, 4 terminating in knobs 5. The head may lie over the base, as shown, for vertical buttonholes, as in the backs of collars, or across the base for horizontal buttonholes. Alternatively, the head may be rotatable about the shank 2, or the base may be made rotatable. The form of the stud prevents rolling away if dropped.
Patent GB-174122-A (GB)
Title: Improvements in or relating to spinning frame spindles
IPC: D01H7/10
Filed: 1920-09-16
Abstract: 174,122. Flight, S. J. Sept. 16, 1920. Spindle apparatus; spindledriving apparatus.-The wharl 8 of a spinning-frame spindle is mounted on a bush 6 screwed into the arm of a knee-bracket 1 fixed to the neck rail so that the strain due to the tension of the driving-band is not transmitted to the spindle, which is connected to the wharl by means of a sleeve 18 and driving-studs 13. The knee-bracket may be formed in two parts adjustable with respect to each other and to the neck rail. The bush is bored to allow the spindle to revolve therein with clearance. The outside of the bush is grooved for the distribution of lubricant, which is supplied through a hole 10 in the bracket.
Patent GB-439708-A (GB)
Title: Cut film magazine for use with photographic cameras
IPC: G03B17/34
Filed: 1934-09-17
Abstract: 439,708. Photographic film-change boxes. LEWIN, L. O., 108, Lyndhurst Gardens, New Barking, Essex. Sept. 17, 1934, No. 26624. [Class 98 (i)] A change-box housing a number of cut films incorporates a reversible and completely removable shutter - slide which, by means of a catch incorporated therein or attached thereto and in conjunction with separators, enables each film to be transferred from an exposure position to a position where it can be readily removed. As shown, the changebox A has a light. tight removable back B held by a latch E and provided with metal guide strips G1 and metal springs F1. The pack of films comprises alternately a film I and a separator J. The separator J comprises a sheet of celluloid provided on the front with a sheet of black paper and on the rear with three spaced felt strips. Attached to the celluloid sheet is a metal clip K having a prong L. Alternatively the separator may comprise a sheet of black opaque celluloid matted on the front and provided with the felt strips at the rear and having a projecting prong formed integrally therewith. The pack of films is stacked between wire frames D and H and is compressed by the metal plate S and the springs F1. The shutter slide O1 has a slot 02 closed on one side by a metal plate 03, and is initially inserted in the change-box in a reversed position to that shown so that the first prong L cannot engage in the slot 02. After the first exposure, the slide O1 is replaced in the position shown, and on withdrawal to make the second exposure the prong L of the first separator J engages in the slot 02 and the first film I and the first separator J are carried up and guided by the metal strips C1 and G1 to the back of the pack to occupy the position shown at T. A disc provided with numbers may be revolved by hand below an apertured cover to indicate the number of exposures made.
Patent GB-889359-A (GB)
Title: New hydroaromatic di-and poly-amides and process for their manufacture
IPC: C07D215/54
Filed: 1959-08-04
Abstract: The invention comprises epoxides obtained by epoxidizing the double bonds in the cyclohexene rings of di- and poly-amides formed from di-D 3-tetrahydrobenzylamine and various di- and poly-carboxylic acids (see Group IV(b)).  These epoxidized hydroaromatic di- and poly-amides may be converted into insoluble and infusible resins by the addition of various basic and acidic organic compounds (a list is given), but the preferred hardeners are phthalic anhydride, methyl-endo-methylene-tetrahydrophthalic anhydride, dodecenyl-succinic anhydride, hexahydrophthalic anhydride, hexachloro-endo- and endo-methylene-tetrahydrophthalic anhydride. Maleic or succinic anhydride, and, if desired, an accelerator such as a tertiary amine may be added.  As extenders and fillers may be used glass fibres, mica, quartz meal, cellulose, kaolin, finely-divided silicic acid or metal powders. In Example 2, the tetra-epoxide of N,N,N1,N1-tetra-(D 3-tetrahydrobenzyl)-oxamide is mixed in the molten state with methyl-endomethylene-tetrahydrophthalic anhydride, and the mixture, after addition of bis-(D 3-tetrahydrobenzyl)-methylamine as accelerator, is poured into a mould, and hardened at 150 DEG C. for 1 1/4 hours.ALSO:The invention comprises cyclohexenyl di- and poly-amides of the general formula <FORM:0889359/IV (b)/1> wherein X represents a divalent organic residue, m is 1 or 2, Y is a trivalent organic residue, n is a whole number from 1 to 5, and each Z represents a residue of the formula <FORM:0889359/IV (b)/2> wherein each R represents a hydrogen atom or an alkyl radical, and R1 and R5 may, together represent a methylene group. The invention also comprises the compounds formed by epoxidation of the double bonds in the cyclohexene rings.  The amides are prepared by reacting di-tetrahydrobenzylamine or a derivative thereof, such as bis(methyl-tetrahydrobenzyl)-amine with the acid-chloride of the appropriate di- or polycarboxylic acid. Example 1 describes the preparation of N,N,N1,N1-tetra-(D 3-tetrahydrobenzyl)-oxamide by the action of oxalyl chloride on di-D 3-tetrahydrobenzylamine.  Example 2 describes the epoxidation of the above-named oxamide with peracetic acid.  These epoxidised amides have use in synthetic resin technology (see Group IV (a)).  A list of acids which may be used in the preparation of the amides is given; this list includes malonic, tricarballylic, maleic, tartaric, citric, dimerised linoleic, polyacrylic, terephthalic, diphenic, mellitic, naphthalene-1,8-dicarboxylic, perylene-3,4,9,10-tetracarboxylic, 2, 3-pyridine dicarboxylic, and 2,3-quinoline-di carboxylic acid.  Di-D 3-tetrahydrobenzylamine is prepared by condensing D 3-tetrahydrobenzylamine with D 3-tetrahydrobenzaldehyde to form the Schiff's base, and then hydrogenating the latter under conditions such as to avoid saturating the double bonds in the cyclohexene rings, e.g. by means of a sodium alcoholate or lithium-aluminium hydride.
Patent GB-892995-A (GB)
Title: Antihunting network for servo mechanisms
IPC: G05D3/14
Filed: 1958-08-19
Abstract: 892,995. Potentiometric voltage measurements. VARIAN ASSOCIATES. Aug. 19, 1958 [Oct. 14, 1957], No. 26686/58. Class 37. A servo system has in the feed-back loop thereof an adjustable phase-lead antihunting network comprising a fixed resistance element, 37, a capacitative element 35 in parallel therewith and means for adjusting the fraction of the fixed resistance connected across the capacitance so that the D.C. resistance of the network remains unchanged whatever the position of the adjusting means. A servo system according to the invention incorporating such a phase lead compensating network (35) is described in connection with a voltage recorder, Fig. 2, comprising an automatically balanced potentiometer 29. The voltage to be recorded is derived from a source 11 fed through a filter, error detector 1 (in the form of a variable resistance 18) and a high resistance 19 to an interrupter 22 operated at 60 c/s. where it is converted into an alternating voltage, amplified at 24 and fed to one winding of a reversible two-phase motor 26 to drive the motor and, through a linkage 20, the potentiometer pick-off 28 and a recording stylus 41. The measuring voltage derived from 28 is fed back, in accordance with the invention, to error detector 1 through network 35 to increase the voltage input to detector 1 thereby compensating for the inertion of the motor 26 and linkage 20. The signal fed back produces a voltage drop across resistor 18 which, when it is not equal and opposite to the voltage drop produced by the input signal, generates an error signal which drives motor 26 and pick-off 28 in such a direction as to reduce the error signal to zero. Coarse and fine adjustment are made by the variable resistance 32 in series with the reference cell 31 and by resistor 18, respectively, and pick-off 39 adjusts the zero position of stylus 41.
Patent GB-1122129-A (GB)
Title: Process for purifying copper base alloys
Inventor: DORE JAMES ERNEST
IPC: C22B15/00
Filed: 1967-06-09
Abstract: Copper or copper base alloys are purified by melting them and adding thereto a monomeric halogen-containing lower aliphatic hydrocarbon containing at least one fluorine atom.  The treatment agent is preferably gaseous, fully halogenated and saturated. The gaseous agent may be bubbled in an inert gas which contains at least 0.1% of the hydrocarbon.  Cu alloys containing Ni, Ag or Sn may be treated in the alloyed state but if the final alloy is to contain Zn, Al, Cr or Si the copper must be purified before the alloying additions are made.
Patent GB-873787-A (GB)
Title: Improvements in or relating to electric vacuum furnaces
Inventor: MARTIN DAVID ERIC
IPC: H01J37/305
Filed: 1958-08-20
Abstract: 873,787. Electrically heated vacuum furnaces. GENERAL ELECTRIC CO. Ltd. Aug. 18, 1959 [Aug. 20, 1958], No. 26799/58. Drawings to Specification. Class 39(3). [Also in -Group XL(a)] In an electric vacuum furnace in which a charge is arranged to be simultaneously heated by radiant heat and electron bombardment, comprising a casing containing one or more electric resistance heating elements of electron emitting material, means are provided for supporting the charge and for connecting the charge, or electrically conducting means associated therewith, and the element or elements to the positive and negative terminals respectively of a direct current supply, preferably of 10 kv. The heating element is preferably of carbon and is disposed coaxially around the charge or the electrically conducting means (which may comprise a metal shield). There may be three carbon resistance elements connected to a three-phase alternating supply.
Patent GB-463552-A (GB)
Title: Improvements in and relating to dielectric compositions
IPC: H01B3/20
Filed: 1935-09-28
Abstract: A liquid dielectric composition consists of a hydrocarbon or a halogenated organic compound and less than 10 per cent of a halogen substitution derivative of an open-chain olefinic hydrocarbon in admixture therewith.  Olefinic compounds specified are di-, tri- and tetra-chlorethylene, tri- and tetra-chlorpropylene, and tetra- and penta-chlorbutylene.  The halogenated organic compound may be a trichlorbenzene, or a chlorinated-diphenyl, -diphenyl methane, -diphenyl ketone, -diphenyl oxide, or -naphthalene, and the hydrocarbon may be a mineral oil.  In examples, the compositions consist of pentachlor-diphenyl and trichlorethylene, with or without trichlorbenzene, and mineral oil mixed with trichlorethylene. Specification 394,776, [Group XXXVI], is referred to.  According to the Specification as open to inspection under Sect. 91, the compositions may be used as lubricants.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 157,454, [Class 38 (i)], and 450,170.
Patent GB-897411-A (GB)
Title: Improvements in humidity indicators and humidistats
Inventor: STROBEL CHARLES KENNEDY
IPC: G01N19/10
Filed: 1958-08-21
Abstract: 897,411. Actuation of switches. ROBERTSHAW-FULTON CONTROLS CO. Aug. 21, 1958 [Dec. 10, 1957], No. 26932/58. Class 38 (5). [Also in Group XX] A humidity-sensitive element 30 in the form of a ribbon of woven or solid nylon, woven rayon, polyvinyl alcohol film, cellulose acetate or silk is mounted at one end on a roller 58 and passes over rollers 54, 56 to have its other end secured to a chain 36 which passes partly around a rotatable member 22 and has an end fixed to a pin 38 thereon which also anchors one end of a spring 40. A pointer 26 co-operating with scale 14 is rotated by the member 22. A member 72, pivoted on the same stud 20 as member 22, has an index arm 74 which may be adjusted to any desired value on the scale 14. On the pointer 26 reaching the desired value, either from above or below that value, a cam-plate 24 on member 22 actuates or releases, through pivoted cam-plate 92, the activator 98 of switch 80 mounted on the member 72. In a modification, two members are provided with switches.
Patent GB-828653-A (GB)
Title: Improvements in the polymerisation of olefines
Inventor: KERBER HORST
IPC: B01J27/188
Filed: 1957-08-27
Abstract: A catalyst used in polymerizing olefines is obtained by applying chromium oxide to a carrier of aluminium phosphate, e.g. by impregnating aluminium phosphate with aqueous solutions of chromic acid followed by separation and heating of the solid phase.ALSO:Olefines are polymerized using as catalyst chromium oxide applied to aluminium phosphate as carrier, e.g. prepared by impregnating aluminium phosphate with aqueous solutions of chromic acid, followed by separation and heating of the solid phase.  The polymerization may be batchwise or continuous and is preferably in an inert solvent such as cyclohexane, heptane or octane. Olefines specified are ethylene, propylene and dienes.  The catalyst may subsequently be removed from the polymer products by the use of a base or an acid (e.g. caustic soda or potash, hydrochloric, sulphuric or hydrofluoric acid-these preferably being used in the presence of an inert organic solvent) and may then be recovered by neutralization of the solution obtained. The example illustrates the addition of further ethylene during the polymerization reaction, and also describes the purification of polymer with methanolic hydrochloric acid and methanol.
Patent GB-441029-A (GB)
Title: Improvements in the carbonisation of coal or other carbonaceous substances
IPC: C10B47/04
Filed: 1934-09-19
Abstract: 441,029. Carbonizing process. WALLACE, G. W., 39, Grosvenor Place, Hyde Park Corner, London. Sept. 19, 1934, No. 26965. [Class 55 (i)] In the carbonization of coal, shale, &c. positioned as a uniform layer B by a central core of material A, such as coke, in a retort 1 externally heated on all sides, the central core is of greater thickness than the layer and the volatile matters from the latter pass towards and freely through the core to be withdrawn from the lower part of the retort. In an example, a retort of cross-section 15 by 30 inches has a central body of 6 by 21 inches and layers of coal of 4À5 inches in thickness. The central core may comprise partially coked carbonaceous material and may be introduced into' the retort in a heated condition. A layer of the material to be carbonized may be placed on top of the central body. The charges are supported by a perforated plate 6, forming part of the door 8 which is held in position by a locking bar 10 and hook 9, the door being counter-weighted at 20. The volatiles escaping through the perforations in the plate 6 are withdrawn through the pipe line 14 connected to an exhauster. A hollow tube 15 rests on the plate 6 within a rib 17, during the charging of the retort and is then withdrawn by a hoist 16. Internal pressure within the retort may be relieved by controlled outlets at the top of the retort.
Patent GB-1492155-A (GB)
Title: Hydraulic system including a plurality of hydraulic motor
IPC: F15B11/17
Filed: 1976-06-29
Abstract: 1492155 Hydraulic control circuits CATERPILLAR TRACTOR CO 29 June 1976 [28 Oct 1975] 27079/76 Heading F1P In the circuit shown, in which a dual-stage relief valve 38 establishes a relatively high pressure in the system when either of valves 15 or 28 are operated, and a relatively lower pressure when one of the other control valves is operated, a balanced resolver valve 60 is provided between the valves 15, 28 and the relief valve, so that if both these valves are operated simultaneously neither can communicate with the relief valve and the higher pressure is not established. The higher pressure is used to operate track motors e.g. 18, and the lower pressure operates implement rows, such as 23, of an earthworking machine. This arrangement of the valve 60 prevents the operator supplying high pressure fluid to the rows by operating both valves 15, 18 simultaneous, as was possible with prior orb circuits. The control valves are pilot operated, as is the relief valve 38. Pilot pressure moves a spool 69 of valve 60 when one of valves 15, 28 is being operated but if both are being operated the spool 69 remains in its central position and pilot pressure is not fed through a port 73 and line 61 to the relief valve.