baber/WOPTO huggingface dataset:
Patent GB-943593-A (GB)
Title: Improvements in and relating to etch solutions
IPC: C23F1/18
Filed: 1962-07-31
Abstract: 943,593. Etching. FMC CORPORATION. July 31, 1962 [Aug. 4, 1961], No. 29375/62. Drawings to Specification. Heading B6J. A solution for etching copper printing plates comprises 5-50% by weight of a watersoluble persulphate, and 1-20% of a watersoluble chloride. Ammonium or sodium persulphate may be used. Chlorides referred to are ammonium, alkali metal, magnesium, mercuric, stannic or ferric chlorides, also hydrochloric acid. There may be added 0.1-2% of a sulphur-containing organic compound, e.g. thiourea, 2- naphthalene-sulphonic acid, benzene sulphonic acid, and other acyl sulphonic acids such as amino-2-naphthalene sulphonic acid, and the di- and tri-benzene and naphthalene sulphonic acids. A catalyst, such as mercury, may be added. In etching, the chloride is added at intervals to maintain the etch factor high. Specification 867,573 is referred to. Reference has been directed by the Comptroller to Specification 917,883.
Patent GB-617470-A (GB)
Title: Improvements in and relating to thermionic cathodes
IPC: H01J9/04
Filed: 1946-10-02
Abstract: 617,470. Cathode materials and processing. M-O VALVE CO., Ltd., and WRIGHT, D. A. Oct. 2, 1946, No. 29389. [Class 39 (i)] A thermionic cathode has an intermediate layer of metallic powder between the metal base and the emissive alkaline earth oxide layer. The base may be nickel or iron. The powder may be either nickel or iron, or tungsten, tantalum, zirconium, hafnium, or thorium, and may be applied -by painting or spraying a suspension in a later evaporated liquid, and then sintered.
Patent GB-1147804-A (GB)
Title: Improvements in or relating to transducers and rings therefor
IPC: G01L1/24
Filed: 1966-06-30
Abstract: 1,147,804. Dynamometers. LORD CORP. June 30, 1966[July 26, 1965], No.29439/66. Heading G1W. [Also in Division G2] A motion transducer (proving ring) for measuring static or dynamic forces comprises a hollow square having four sides 10-13 Figs. 1 and 1B carrying optically aligned mirrors 20-23 which are connected by flexures or hinged corners 14-17, and fixed mirrors 24 and 25 mounted on bracket 26, either of which reflect a collimated beam of light from an autocollimator outside the transducer to mirrors 20, 21, 22 and 23 in turn and back to the other of the fixed mirrors which reflects the light back into the autocollimator. Due to force being applied to end bosses 18 and 19 the dimensions of the transducer are changed producing a rotation of each of the four sides and thus of mirrors 20-23. The total angular difference between the incoming rays and the outgoing rays is 80 where 0 equals the angular rotation of each of the four mirrors. By indicating this angle the autocollimator gives a measurement of the force applied or the displacement effected. In a second embodiment fixed mirrors 24 and 25 are replaced by mirrors 24, 63 and 64, Fig. 2B. The input light beam is reflected from mirror 24 and by way of mirrors 20-23 to mirror 64 from which it is reflected back by way of mirrors 23-20 to mirror 24 and into the autocollimator. Reflector 63 provides a reference direction. The total angular difference is 160 where 0 is the rotation of any one mirror. In a third embodiment having unitary construction, Fig. 4, reflectors 43A, B and C e. g. reflecting prisms, are attached to three of the four sides 10, 11 and 12 and a prism 45 is attached to the fourth side 13, the sides being joined by flexures 33-36. A collimated beam of light from an autocollimator is directed into prism 45, Fig. 8, reflected from the 45 degrees internally silvered face on to reflectors 43A, B and C in turn, and on to the outside silvered face of the prism 45, this face reflects the beam back via reflectors 43C, B and A into the prism 45 wherein it is reflected from the 45 degrees internal face back to the autocollimator. The first surface (front surface) is half-silvered and provides a reference beam. The half-silvering may be dichroic, automatically colour-coding the reference and the measurement rays differently. Again the total angular difference is 160. The structure may not have unitary construction, and may comprise four rigid portions 48, Fig. 6, separated by flexures 49 and mounted by means of adapters 53 on bosses 52 within a load-carrying member having end surfaces adapted for compression loading and threaded portions 45a and 46 for tension loads. Plastics foam may provide a thermal barrier, Fig. 7 (not shown). An autocollimator is described with reference to, Fig. 11 (not shown).
Patent GB-1302579-A (GB)
IPC: D04B35/10
Filed: 1970-06-17
Abstract: 1302579 Warp stop motions; knitting machines G FIORUCCI 17 June 1970 [27 June 1969] 29502/70 Headings D1E D1C and D1M A photoelectric warp stop motion has downstream of the light source 5 and photoelectric cell 6, a braking device acting on the warp sheet N, which braking device consists of an upper bar 2 spring biassed upon a lower bar 1, so that when a thread snaps it is carried along by the warp sheet and collects on the upstream side of the braking device to interrupt the light beam. The top bar 2 is adjustable relative to the bottom bar 1 by eccentric members 7. The stop motion may be used in looms, warp knitting machines or warping machines.
Patent GB-742286-A (GB)
Title: Process for the production of polymers of anacardic material
IPC: C09F7/06
Filed: 1953-10-26
Abstract: Anacardic material is polymerized by heating it in presence of one or more phenol sulphonic acids devoid of ethylenic unsaturation.  The "anacardic materials" are defined as cashew nut shell liquid and distillates and normally liquid residues obtained therefrom and suitable materials are disclosed in U.S.A. Specifications 2,058,456, 2,067,919, 2,128,247 and 2,559,593. Polymerization is preferably effected at 250-400 DEG  F. and either stopped while the product has a melting point below 300 DEG F. or continued until a solid, infusible product is obtained.  Suitable sulphonic acids are those derived from phenol, cresol, xylenol, isopropyl phenol, naphthol, catechol, hydrogenated cardanol or hydrogenated cardol.  Products having a melting point below 300 DEG  F. may be reacted, e.g. at room temperature to above 350 DEG  F. with a compound containing a reactive methylene group, e.g. formaldehyde, paraformaldehyde, hexamethylenetetramine, trioxane, glyoxal, polymerized glyoxal, furfural, acrolein, polymerized acrolein, acetaldehyde or mesityl oxide.  The polymers and their condensates with aldehydes may be used in electrical insulation, for brake linings or clutch facings or as impregnants, binders or friction fortifying dusts.  In examples (1) cashew nut shell liquid from which nitrogenous and metal compounds have been removed is polymerized by heating with phenol sulphonic acid to a liquid of viscosity 5000-10,000 c.p. at 25 DEG C. (Product 1).  This product was polymerized by heating with phenol sulphonic acids to a liquid of viscosity 3000 c.p. at 25 DEG C. (Product 2). (3) The residue of distilled cashew nut shell liquid is polymerized by heating with xylenol sulphonic acid to a liquid of viscosity 25,000 c.p. at 25 DEG  C. (Product 3).  The product was heated with or without xylenol sulphonic acid to yield a solid, infusible material.  (4) As in (1) but using the sulphonic acids of hydrogenated cardanol or hydrogenated cardol.  (5) Acid washed cashew nut shell liquid was polymerized by heating with phenol sulphonic acid.  (6) Product 1 was heated with paraformaldehyde to produce an intermediate product which was used to impregnate an asbestos brake lining material containing barytes and rubber; the impregnated material was then heated to 400 DEG F. to cure the intermediate product.  Instead of using the intermediate product as the impregnant a mixture of Product 1 and paraformaldehyde may be used.  If desired Product 1 and paraformaldehyde may be heated to yield a solid infusible product.  (7) Product 2 was heated with glyoxal as in example 6.  (8) Product 3 was heated with furfural to yield a solid, infusible product.  (9) The product of example 5 was heated with paraformaldehyde to yield a rubbery solid.
Patent GB-877891-A (GB)
Title: Improvements in and relating to vehicle transmissions
IPC: F16H37/00
Filed: 1958-09-15
Abstract: 877,891. Change-speed gear. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Sept. 15, 1958 [Sept. 14, 1957], No. 29534/58. Class 80 (2). [Also in Group XXXI] A tractor change-speed gear comprises a countershaft 44, Fig. 1, driven at four speeds from an input shaft 1 through selected cluster gears 45 ... 48 and coupled to an output shaft 41 through selected alternative gear trains to provide a second group of four speed ratios. The drive between the countershaft 44 and the output shaft 41 comprises an auxiliary shaft 55 carrying a pinion 60 in constant engagement with a pinion 61 on the output shaft and also comprises a gear cluster 52, 53 which is freely rotatable on a bearing 49 surrounding the output shaft 41 and having a gear 52 in constant mesh with a gear 50 on the end of the countershaft 44. The auxiliary shaft 55 may be selectively engaged with the shaft 44 through dogs 51, 57 to drive the output shaft 41 through gears 60, 61 at normal ratios. Alternatively, a gear 54 splined on the shaft 55 is moved to engage the gear 53 so that the output shaft is driven through gears 50-54, 60, 61 at reduced ratios. Reverse gear through the normal ratios which are still engaged is obtained through a composite gear 67, 68, Fig. 3, slidable on a shaft 63 parallel to the shaft 55, and having the gear 68 in constant mesh with the gear 54 while the gear 67 is selectively engageable with the gear 52. Selectable drives for a pair of power take-off shafts 16, 17 are described in Group XXXI. Specification 799,012 is referred to.
Patent GB-221388-A (GB)
Title: Improvements in processes of carbonizing
IPC: C10B1/04
Filed: 1923-11-22
Abstract: 221,388. Dicker, S. G. S., (S.E. Co.). Nov. 22, 1923. Coking and carbonizing processes.- In the downward distillation of coal, shale, and lignite, the heat is generated by the combustion of liquid or gaseous fuel above the charge, the carbonizing zone thus initiated travelling downwards through the charge. The combustible gases employed are preferably those resulting from the process, and gases such as natural gas may be employed. The charge is in a moistened and pervious state, the lower parts being maintained at a temperature not above 212‹ F. until influenced by contact with the carbonization zone ; steam may be admitted to increase yield of ammonia. The combustible gases may be supplied with insufficient air so as to impart to them a reducing effect. The apparatus comprises a chamber 1 having air and gas supplies 5, 6, a grate 3, and outlet pipe 7 for gases and condensed liquids. The gases pass through a condenser 10, fan 12, condenser 13, ammonia scrubber 14, oil scrubber 15, and outlet pipe 16 leading either by pipe 17 to the gas inlet 6 or by pipe 18 to a gasometer.
Patent GB-534094-A (GB)
Title: An improved luminous sign device for use in black-out conditions
IPC: G09F13/00
Filed: 1939-11-07
Abstract: 534,094. Shadow signs. HILL, A. H. Nov. 7, 1939, No. 29565. [Class 3 (ii)] An optically-projected sign employs a pin-hole source of light. The hole g is provided in a plate h disposed near to a miniature lamp d energized either from a battery or from the means through a transformer located in a base a. A restricted opening f in the front wall b' of the lamp housing b cuts off the more extraneous rays and produces a purer conical beam which passes through a stencil on a transparency j to throw an enlarged shadow of same on a screen. The transparency j may be slidably removable in channels k in a hood i which can be slid to and from the hole g to determine the size of the shadow cast.
Patent GB-1401075-A (GB)
Title: Protection apparatus for an electrical load
IPC: H02H3/24
Filed: 1972-06-23
Abstract: 1401075 Protective arrangements ANTHONYS MFG. CO Inc 23 June 1972 [24 June 1971] 29571/72 Heading H2K A protective arrangement for a load, e.g. a heated multipane glass unit of a refrigerated cabinet door, comprises a switching device, e.g. a controlled rectifier SOR1 connected across the supply conductors 16, 21 and connected to control means which in response to an open circuit condition renders the switching device conductive to cause sufficient current to flow to blow a fuse F1. In the arrangement shown terminals 41, 44 and 40, 45 would be connected to opposite ends of respective connecting strips between which the conductive coating of the glass unit extends, so that breakage of the glass causing an open circuit between either pair of terminals renders a transistor Q1 non-conductive. This removes a short-circuit from a resistor R3 so that the controlled rectifier SCR1 is able to conduct and cause the fuse to blow.
Patent GB-210506-A (GB)
Title: Variable resistance unit
IPC: H01C10/46
Filed: 1922-10-30
Abstract: 210,506. Cameron, W. J. Oct. 30, 1922. Regulating-switches.- In variable resistances of the kind wherein a. resistance coil is embedded within an insulating core and is connected at intervals to spaced d contact studs traversed by a sliding contact the contact studs are also embedded within the insulating core. The resistance coil 6 is wound upon an axially bored insulating cylinder 5 coated with insulating material, the contact studs 7 being arranged in alignment parallel to the axis of the core. A copper rod 8 extends longitudinally of the core and is spaced therefrom by apertured ears 9 extended laterally from each end of the rod 8. The unit is surrounded bv a split reticulated jacket 10 the upper and lower ends of which are seated within grooves 11, 13 in axially bored insulating blocks 12, 14. An insulating plugpiece 16 disposed above the block 12 is surrounded by a screw-threaded conducting sleeve 17 and the several blocks are mounted upon a. central bolt 18 and clamped by end nuts which also serve as central contacts for the plug 16 and a socket 15 in the bottom block 14. The bolt 18 passes through the apertures of the ears 9 but is insulated therefrom, the upper ear being connected to the plug sleeve 17 by a conductor 23 passing through an aperture 22 in the block 12. A threaded metal shell 26 within the socket 15 is connected to the lower contact stud 7 by a conductor 25. The sliding contact comprises a bridge 30 extending across from the longitudinal rod 8 to the contact studs and screwed at its midpoint to a runner 27 provided with side channels 2S to receive the opposite edges of the slit of the jacket 10.
Patent GB-248829-A (GB)
Title: An improved composite plate, sheet or the like suitable for use as a covering for walls, floors, ceilings, furniture or other articles
IPC: E04F13/08
Filed: 1924-12-10
Abstract: 248,829. Oldham, E., Oldham, B. P., and Oldham, J. N. Dec. 10, 1924. Compound flooring blocks.-In preparing large flooring slabs in which a number of wooden blocks are assembled and backed by concrete or the like to form a composite slab, the individual blocks are interlocked to prevent lifting or separation by forming rectangular or wedgeshaped projections on some edges of each block which engage corresponding recesses on the other edges of adjacent blocks. Fig. 1 illustrates a slab and Fig. 5 a block in which the lower portions of some of the edges are cut away, and the upper portions of others, thereby forming projections 8 and recesses 6 for co-operating with adjacent blocks. When the projections and recesses are wedgeshaped, a dovetailed connection is produced which prevents both lifting and lateral separation of the blocks. The large slabs may be formed with similar projections and recesses for, securing them to adjacent slabs in laying, or they may be grooved to receive strips 15, Fig. 13, of sheet metal formed with L-shaped lugs 16 which are bent downwardly and screwed to the joists or like foundation members.
Patent GB-869894-A (GB)
Title: Improvements in or relating to devices for laterally displacing crop lying on the ground
IPC: A01D78/16
Filed: 1958-09-17
Abstract: 869,894. Haymaking machines. VAN DER LELY N.V., C. Sept. 17, 1958 [Oct. 4, 1957], No. 29765/58. Class 6(3). In a rake-wheel type of haymaking machine the outermost rake-wheels 13, 15 are driven by belts or chains 36, 37 which pass through tubes 3, 4, 5, 6 forming part of the implement frame 1. As shown, the device has three rake wheels 13, 14, 15 and the drive is transmitted from the towing tractor 8 through a variablespeed gearbox 21 and a longitudinal shaft 20 to a drive-housing 2, which contains driving sprockets, Fig. 3 (not shown), for the chains 36, 37 and direct drive to a shaft 16 carrying the central rake-wheel 14. The outer rakewheels are carried on shafts 30, 31 driven by the chains 36, 37 and may be mounted on either end of these shafts by pins such as 77. When arranged as in Fig. 1 the rake-wheels co-operate for side-delivery, but the outer rake-wheels may be mounted on the other ends of their shafts for tedding. The implement frame is supported on lockable swivelwheels 9, 10 carried by parallelogram linkworks 11, 12 on the ends of the tubes 3-6, height-adjustment being by diagonal screwthreaded cranks 69.
Patent GB-1421886-A (GB)
Title: Separating meat from bones
IPC: A22C17/04
Filed: 1974-07-04
Abstract: 1421886 Separating meat and bones KARTRIDG PAK CO 4 July 1974 29768/74 Heading A2U A mass of meat and bones or bone pieces is separated by pressing it in a single direction in a chamber having a foraminous surface, the foramina of which are smaller than the bones, thereby extruding the meat through the foramina. A suitable apparatus comprises a chamber 5 with a piston 6 and a foraminous lid 10. The lid comprises a plurality of concentric rings 21-23 separated by slits 26, 27 which give access to conduit 35.
Patent GB-376592-A (GB)
Title: Improvements in or relating to indicator apparatus for multicylinder engines
IPC: G01L23/26
Filed: 1931-10-27
Abstract: 376,592. Steam and internal-combustion engine indicators. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Oct. 27, 1931, No. 29789. Convention date, Nov. 21, 1930. [Class 106 (ii).] An apparatus for driving the indicators of multi-cylinder reciprocating engines comprises a crank rotated by the engine and a member reciprocated by the crank such member being angularly adjustable about the axis of rotation of the crank so as to bring the reciprocating motion of the member into synchronism with any one of the cylinders. Associated with each cylinder head c is an indicator d actuated by a cord e guided over pulleys f, f<1> and connected to an anchoring spring g. The drums h<1>, h<2>, h<3> of the indicators can be connected to or disconnected from the transmission cord e by means of latches i<1>, i<2>, i<3>. The crank shaft b is furnished with an external crank k connected by a rod l to a piston o adapted to reciprocate in a cylinder p formed in a casing r which is rotatable on the engine casing about the axis of the crank shaft. The piston o carries a pin m which passes through a radial slot in the casing r and over which is placed a loop v at the free end of the cord e, a rod x at one end of the loop passing through a bush w to which the rod may be locked by a set-screw y. A spring locking stud s may be moved into any of three notches on the engine casing so as to lock the casing r to the engine casing q in the desired angular position, the cord e being guided between rollers t so that the cord always passes through the axis u. To indicate say the cylinder a the drum h<1> is coupled to the cord e by the latch il the other latches being disconnected, whereupon the casing r is rotated until the cylinder p is in the first position. The piston p will now synchronize with the piston of the cylinder a. When the loop v is locked in the position shown, the pin m will reciprocate without moving the cord and the cord may be connected to or disconnected from the piston o as desired without wear.
Patent GB-445874-A (GB)
Title: An improvement in photographic cameras
IPC: G03B17/12
Filed: 1934-10-18
Abstract: 445,874. Photographic collapsable cameras. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 18, 1934, No. 29833. Convention date, Oct. 25, 1933. [Class 98 (i)] In a collapsable camera, a yellow filter or a supplementary lens is carried by a pivoted holder, and an actuating member is provided to move the filter or lens out of operative position by the act of closing the camera. As shown, the lens panel 1 is connected to the camera body 9 by toggle levers, and the filter or lens 4 is carried by a lever 3, which is pivoted to the lens panel at 2 and has a pin 7 engaged by a slot in a slide 5 mounted on the lens panel and having a hooked end 10 whereby the filter or lens may be drawn up into position for use in front of the objective aperture 8. When the camera is collapsed, the hooked end 10 engages an incline 9a on the camera body, and the slide 5 is thereby depressed to return the filter or lens to inoperative position.
Patent GB-337545-A (GB)
IPC: B01D47/06
Filed: 1929-10-02
Abstract: 337,545. Collins, R. R. Oct. 11, 1928, [Convention date]. Gas washers. - Liquids to be distilled in vacuo are sprayed at 14 in several zones across the rising vapours of the liquid in a column 4, are collected in peripheral troughs 16, and recirculated in each zone by separate pumps 20. Fresh liquid is added at 30 to the top zone and liquid overflows through pipes 24 to the next lower zone. Vapours of liquid are admitted at 6, and reflux liquid is separated at the bottom 10; or a pipe 36 may be used to separate liquid from each trough. The vapour passes off at 8. Pumps 20 for recirculating liquid in each zone are placed below the column at such distance as to be maintained under atmospheric pressure. The vacuum is such that heavy oils distil without decomposition. Wax distillate may thus be recovered from a mixture with a heavy-cylinder oil. In a modification, the lower half of the column has a heating-jacket and the liquid to be distilled is sprayed into the column immediately above the jacket. The liquid withdraw at 10 may be re-circulated through a spray below the bottom trough. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the promotion of contact between liquids and gases not in vacuo, e.g. washing gases. This subject-matter does not appear in the Specification as accepted.
Patent GB-966014-A (GB)
Title: Method of and apparatus for feeding coils to an uncoiler
IPC: B21C47/24
Filed: 1963-07-27
Abstract: 966,014. Feeding webs. F. UNGERER. July 27, 1963, No. 29877/63. Heading B6B. Coils 9 are transported horizontally, each supported on a pair of saddle blocks 8 on a conveyer chain 7, to a position vertically below an uncoiler, the chain stopping as each coil arrives in position. The coil is engaged by an arm 14 pivoted at 15 and the conveyer is then raised by hydraulic pistons, until the arm 14 operates contacts 16 when the coil is aligned between the shafts of the uncoiler. Alternatively, the conveyer is raised only at one end, being pivoted at the other, in which case a second pivoted guide arm 18 is used.