baber/WOPTO huggingface dataset:
Patent GB-575980-A (GB)
Title: Protective mask
IPC: A62B18/02
Filed: 1944-04-24
Abstract: 575,980. Protective masks. MITCHELL, R. G., HUNN, S. A., and EAGLE OIL & SHIPPING CO., Ltd. April 24, 1944, No. 7593. [Class 97 (i)] [Also in Groups VI and XXIX] A protective mask (principally for use by seamen on torpedoed oil-tankers) comprising a hood 1 of rubber or like stretchable material, entirely covering the head and face, is formed with two eye-pieces 2 of transparent material 3 such as glass and a plurality of readily detachable transparent discs (such as 4 in Fig. 4) fitted over each eye-piece, together with an air-valve 14 which can be opened or closed. The detachable discs 4, 5, 6 shown in Fig. 4 are attached to the outer rim 11 by washers 25 and 26 and adhesive annular rings 7, 8 and 8a which have a further ring attachment 9, by means of which the detachable discs can be ripped off as they become obscured and a clear disc exposed. The glass 3 is held in place by the eye-piece clamp 12, tightened by turnedover lugs. The air-valve shown in Fig. 2 comprises a hemispherical cap 15 which can be raised to allow air into the valve, but having flared edges which prevent the entrance of water or oil. The cap 15 is held in the closed position against a washer 21 by means of a locking device consisting of a shoulder 22 on the cap spindle 16, engaging a flattened portion of a slotted hole 23 in the spindle 19 which is actuated by a disc 18 against a compression spring 20 to release the spindle 16 and allow the cap 15 to be raised by the compression spring 17.
Patent GB-948625-A (GB)
Title: Improvements in or relating to fuel injection devices
IPC: F02M41/06
Filed: 1960-03-03
Abstract: 948,625. Fuel distributers. P. E. BESSIERE. March 3, 1960 [Aug. 31, 1959], No. 7597/60. Heading F1B. In an I.C. engine fuel injection device in which the same piston-cylinder assembly 1 Fig. 1, of a reciprocating pump feeds fuel injectors by means of a distributer 9, discharge means 14 are brought into communication with a common supply conduit 8, in the interval between injections by separate injectors, and separate discharge means 19 are brought into communication with each of the individual conduits 11 1 , 11 2 , at least once between two consecutive injections through those conduits. Fuel is delivered from the pump through a re-intake or ball valve 7 and conduit 8 to circumferential groove 13 in rotary element 10. A groove 12 delivers fuel successively to individual conduits 11 1 , 11 2 , leading to the fuel injectors. Between successive injections, the fuel in groove 13 is discharged through grooves 14 to conduit 15 and the fuel in each of the conduits 11 1 , 11 2 , is discharged through groove 19 and groove 18 to conduit 20. Throttles 16 and 21 or, in a modification, counter-pressure valves maintain desired fuel pressures in conduit 8 and conduits 11 1 , 11 2 . In a further modification re-intake valves replace throttle valves 21. In a further embodiment a number of grooves are provided on the rotary element to discharge the conduits 11 1 , 11 2  simultaneously. The residual pressure in conduit 8 or in the conduits 11 1 , 11 2  may be provided by a pump, the delivery of which is connected to the corresponding discharge conduit through a pressure-calibrated discharge valve. Specification 948,624 is referred to.
Patent GB-427268-A (GB)
Title: Improvements in fusible link controlled shut-off valves
IPC: F16K17/38
Filed: 1934-03-09
Abstract: 427,268. Thermally actuated valves. WHEATON, A. W., 77, Durand Road, Maplewood, New Jersey, U.S.A. March 9, 1934, No. 7615. [Class 135] An automatic shutoff valve for pipe lines delivering inflammable fluids comprises a lift - valve 21 held open against the pressure of a spring 25, by a cam-lever 30 the other arm 32 of which forms a detent held bv a trip lever 39, 37, pivoted on the valve casing. The trip lever is held by a line which is attached at 38 and includes a fusible link. The exterior end of the cam-spindle 28 is squared to receive a wrench for opening the valve in setting the device.
Patent GB-1416433-A (GB)
Title: Tunable magneto-electronic raman lasers
IPC: H01S3/30
Filed: 1972-02-18
Abstract: 1416433 Lasers NATIONAL RESEARCH DEVELOPMENT CORP 24 Jan 1973 [18 Feb 1972] 7617/72 Heading H1C In a tunable magneto-electronic Raman laser which comprises a semiconductor crystal 1 disposed in a controllable magnetic field and pumped by coherent radiation, the crystal is arranged in an optical resonator of which at least one reflector 5, 6 is adjustable, the or each surface of the crystal optically facing an adjustable reflector having a coating 3, 4 which is antireflecting for the pumping frequency and over the range of frequencies for which Raman gain occurs. The crystal may be N-type indium antimonide, and is disposed in the bore of an electromagnet 2 which may be superconducting, the crystal being maintained at low temperature by a cryogenic system (not shown). The optical resonator shown is formed by concentric reflectors 5, 6 and is folded by internal mirrors 7, 8. Pumping is effected by a CO 2  laser 9, operating at about 10 microns, through an optical system 11 and a partially reflecting and partially transmitting plate 10. The spinreversal transition may be used to produce a Raman output, which includes a tunable frequency equal to (Fo-Fs) as well as tunable components having frequencies (Fo-2Fs) and (Fo+Fs), where Fo is the pumping frequency and Fs the frequency corresponding to the spinreversal transition. The Stokes, double Stokes and anti-Stokes output frequencies may include a component at frequency Fo, the output being spilled out of the resonator by a beam splitter 12 for collimation and filtering at 13, 15. All the components 10-13 are adjustable for optimum radiation. In a modification the reflector 5 is omitted, plate 10 is replaced by a planar mirror, and the coating 3 mode such as to be transmissive to the pump frequency and highly reflective over the Raman frequency range.
Patent GB-850156-A (GB)
Title: Weight compensation for a weapon mounted pivotally about an axis disposed outside its centre of gravity
IPC: F41A27/30
Filed: 1959-03-05
Abstract: 850,156. Ordnance mountings. UHL, S. March 5, 1959 [March 10, 1958], No. 7633/59. Class 92. A gun 1 Fig. 2, e.g. mounted within a tank cupola 7, having its centre of gravity offset from its trunnion axis 3, is balanced about the axis for every elevational setting by means of a toothed segmental cam 2. Figs. 2, 3 secured on and for angular movement with the axis 3 and a roller chain 4 attached to one end of the cam 2 and to a tension spring 5 secured at 6 to the gun carriage. The roller chain 4 rolls into and out of engagement with the teeth of the cam 2 and the arrangement is such that in large elevational settings of the gun a large spring tension acts with a small segmental leverage about the axis 3 whilst in small elevational settings a small spring tension acts with a large segmental leverage, thus maintaining in all settings a turning movement which balances the gun.
Patent GB-542905-A (GB)
Title: Improvements relating to photographic sensitizing dyestuffs
IPC: C09B23/01
Filed: 1940-04-29
Abstract: 542,905. Photographic sensitizing dyes. KODAK, Ltd. April 29, 1940, No. 7685. Convention date, April 29, 1939. Sample furnished. [Class 2 (iii)] [Also in Group XX] Dyes of the general formula where R is an organic group, e.g. a phenyl or naphthyl group or an aminophenyl or aminonaphthyl group, Q is also an organic group, e.g. a cyano group, or R and Q together represent the non-metallic atoms necessary to complete a carbocyclic or a 5- or 6-membered heterocyclic nucleus, and Z represents the non-metallic elements necessary to complete a 5- or 6-membered heterocyclic nucleus not fused to another nucleus, are made by condensing a compound of the formula with a compound of the formula where Ac represents acyl, e.g. acetyl, propionyl or benzoyl, and R is aryl, e.g. phenyl or naphthyl. Compounds of the last-mentioned formula may be prepared as described in Specification 479,970. The condensation is preferably effected in the presence of a strong organic base, e.g. triethylamine or N-alkylpiperidine, or an inorganic base, e.g. sodium or potassium carbonate, the products being obtained in the form of salts from which the free dyes may be obtained by treating with strong. acids, e.g. hydrochloric or perchloric acids. The products, particularly those containing a nuclear thiocarbonyl group, are useful for sensitizing gelatino-silver-halide emulsions. In examples (1) 5-acetanilido-methylene 3-phenylrhodanine is condensed with (a) 3- ethylrhodanine, (b) 3-ethyl-1-phenyl-2-thiohydantoin, (c) 3-methyl-1-phenyl-5-pyrazolone, (d) benzoylacetonitrile, (e) cyanacetanilide and (f) 3-ethyl-2-thio-2 : 4-oxazoledione, (2) 5-acetanilidomethylene-3-ethylrhodanine is condensed with 3-ethylrhodanine, and (3) 4-acetanilidomethylene - 3 - methyl - 1 - phenyl - 5 - pyrazolone is condensed with (a) rhodanine and (b) barbituric acid. When R and Q represent the atoms necessary to complete an oxazolone nucleus the dyes may be obtained by using, instead of compounds of the type an acylated aminoacetic acid, e.g. acetylaminoacetic acid, propionylaminoacetic acid or benzoylaminoacetic acid (hippuric acid), and by using a water-binding agent, e.g. acetic anhydride, as condensing agent. In an example of ths modification, 4-acetanilidomethylene - 3 - methyl - 1 - phenyl - 5 - pyrazolone is condensed with hippuric acid in the presence of acetic anhydride. The sensitizing properties are tabulated for silver chloride and silver chloride emulsions with a number of dyestuffs of the general formula. As examples of carbocyclic compounds of the general formula 1 : 3-indandione is mentioned. A sample has been furnished under Sect. 2 (5) of the product from 5-acetanilidomethylene-3- ethyl-2-thio-2: 4-oxazoledione and 3-ethyl-2- thio-2 : 4-oxazoledione.
Patent GB-380098-A (GB)
Title: Improvements in floor polishing and/or waxing devices
IPC: A47L13/312
Filed: 1931-03-12
Abstract: 380,098. Polishing-pads. KAUFMANN, J., 2444, 28th Street, Astoria, New York, U.S.A. March 12, 1931, No. 7702. Convention date, Jan. 13. [Class 19.] A floor-waxing device comprises a holder 5, Fig. 1, a member 15 for applying pressure, and a wax container 16 including a polishing cloth 17 which two can be discarded and replaced after being worn out or exhausted. In the specific example described, the holder 5 is of wood with a handle 6 and a clamping device 10 to retain the member 15, which may be made of resilient material, such as metal, with a tendency to straighten out and permit even wear of the wax receptacle. This is preferably made of tinfoil 16 covered with flannel 17, the ends of which are secured to a block 18 attached to the member 15. The polishing fabric has slots 19, Fig. 8, which are punched through into the wax container by the user. Instead of being secured by a clamp 10, the member 15 may carry a slide fitting into a groove on the holder 5. In another modification, Fig. 7, a holder 28 has a handle (not shown) and a block 30 to carry the member 15 which is provided with slotted blocks 32 to hold members 33 attached to the renewable wax-holder 16.
Patent GB-1173085-A (GB)
Title: Improvements in Sliding Clasp Fasteners and their manufacture
IPC: B31D5/00
Filed: 1967-02-17
Abstract: 1,173,085. Sliding clasp fasteners. OPTIHOLDING A.G. 17 Feb., 1967 [3 March, 1966 (2)], No. 7714/67. Heading E2S. [Also in Division D1] A sliding clasp fastener comprises two stringer tapes each of which consists of or includes a sleeve 5 which partially surrounds a respective interlocking element 2 with integrally connected headed teeth 3, the sleeve having perforations initially of sufficient size for the passage of the headed teeth, the stringer tape having been shrunk transversely to reduce the circumference of the sleeve to less than that of the element, thus securing the element partially within the sleeve with the heads 4 of the teeth protruding beyond the perforations, there being means 6 within the element to prevent relative movement between the element and the sleeve. As described each stringer is produced by feeding the element into a loom through a guide 16, the sleeve being woven over the guide and warp threads being omitted during the weaving to provide the perforations. The guide has a bend in its length so that the heads of the teeth are spread apart as the element and the stringer tape pass the bend, the weft threads 23 being supported against the back of the guide 11 at the bend by a substantially triangular guide 24. Inside the guide is a wedge-like thickening which starts from the bend and which causes the teeth to protrude through the perforations in the sleeve. The teeth are engaged by a toothed roll 18 to move the elements in the guide and on the opposite side of the guide is a roll 19 which has a knurled surface to grip the sleeve 14. The roll 19 has a guide flange 22 to support the sleeve as it moves round the bend in the guide. Beyond the spreading device is a shrinking device (not shown) for shrinking the sleeve onto the elements. Although as shown the stringer tape includes a portion extending from the sleeve by which it is fixed to a garment this can be omitted if desired. A modification is described in which the element is covered by a strip of plastics material bent to U shape or two strips one on each side before the sleeve is woven over it. It is also stated that the stringer tape can be knitted, braided or plaited instead of being woven.
Patent GB-606547-A (GB)
Title: Time-delay transmission line
IPC: H03H7/34
Filed: 1946-03-12
Abstract: 606,547. Retardation lines. HAZELTINE CORPORATION. March 12, 1946, No. 7733. Convention date, March 12, 1945. [Class 40 (viii)] In an unbalanced or three-terminal transmission line for retarding electric pulses, in which a coil 11 having distributed inductance and capacity, and input and output terminals 15, 16, is wound, if necessary over an insulating sleeve or tape, upon a conductive cylinder 10 connected through a silver-plated or like strap to an earthed terminal 14, which is common to the input and output circuits, the core is so constructed that the eddy-current and conduction losses in it are approximately equal to one another at the mid-frequency of the working range, in order that attenuation may be reduced. The core may be ferro-magnetic and to that end may be moulded of comminuted 'graphite and iron particles. Formulµ are given in the Specification for the effective conduction-current resistance Rc per unit length between terminals 15, 16, and earth, which depends only on the resistivity and diameter of the core 10, and the effective eddy-current resistance Ue per unit length between terminal 15 and terminal 16, which depends also on other factors including the frequency and the permeability of the core. The attenuation in the circuit is least when these quantities are approximately equal at the mid-frequency of the working range. The core may be solid, Fig. 1 (not shown), or divided longitudinally by radial slots 20, Fig. 3, to control the eddy-currents; or it may have embedded in it along its axis a rod of copper or the like, Figs. 4, 5 (not shown), which may be screw-threaded to facilitate mounting. Specifications 606,548 and 606,549 are referred to.
Patent GB-946793-A (GB)
Title: Improvements in or relating to data transmission systems
Inventor: WRIGHT ESMOND PHILLIP GOODWIN
IPC: H04M11/06
Filed: 1961-03-03
Abstract: 946,793. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. March 2, 1962 [March 3, 1961], No. 7864/61. Drawings to Specification. Heading H4P. In a system comprising a control station and a number of field stations normal telegraphic communication in which any error is detectable from the context of the message takes place from teleprinters, connections being set up in accordance with Telex procedure, but all stations also contain means for transmitting or receiving data, i.e. messages in which an error is not detectable from the context, for use in data processing equipment at the control station, and means is provided for selecting one or other of these operations. The selection may be manual or made automatic by programming the control station to select each field station in turn, the programme being brought into operation outside office hours. Details are given of a unit for detecting particular groups of characters which initiate the operations or indicate the end of transmission. The use of error checking arrangements is described.
Patent GB-658313-A (GB)
Title: Improvements in rolling mill having removable chocks
IPC: B21B13/04
Filed: 1949-03-23
Abstract: 658,313. Rolling. DEHN, S. G. (Birdsboro Steel Foundry & Machine Co.). March 23, 1949, No. 7923. [Class 83 (iv)] In a three-high rolling mill the upper and lower middle roll chocks 49, 63, Fig. 3, have respectively upwardly and downwardly extending legs 52, 66 between which the upper and lower roll chocks 77, 95 are located, pass opening wedges 80 being located between the middle and the adjoining upper and lower roll chocks. The rolls 20, 22, 24, Fig. 1, are supported at each end in housings 26 bolted to rails 29 and comprising two uprights 31 transversely connected by a cap 35 and longitudinally located by spreaders 33, 34. The caps 35 are attached by shear-pins 39 to pairs of vertically projecting lugs 36 at the top of each upright and have extensions 40 for engaging with wedges 41 inserted between the caps and uprights to take up play in the shear pins 39. On removal of the wedges 41 and one of the shear pins 39, each cap may be swung back on the other shear. pin 39 to allow removal of the rolls &c., the projection 40 engaging stops 40<SP>1</SP> in the uprights to locate the cap in the position shown by the dotted line in Fig. 1. Removable end clamps- 44-47 locate the roll chocks in the housing in the conventional manner. The middle roll upper chocks 49, Figs. 3, 4, have recesses 54, 56 for the upper roll wedges and lower chocks and have upwardly-extending legs 52 slidably engaging the inside walls of the housing uprights 31 and are vertically located by lockable adjusting screws 61, Fig. 1, in the top cap 35, which engage the tops of the legs 52. The middle roll upper chock carries an antifriction liner 51 and has opposed wedge faces 55 on its upper surface. The middle roll lower chock 63, Figs: 3 and 6, is similar to the chock 49 but inverted, and rests by its legs 66 on abutments 70 on the frame and has lugs 76, Fig. 6, on its legs to support chocks for the lower roll. It may be attached by means of lugs 74 to lugs 58 on the upper chock 49 so that when the latter is lifted by a crane at holes 60 in its legs all the rolls and chocks are removed on a single unit. The upper roll chocks are longitudinally located by walls 78 of the recesses 54 and are supported on opposite wedge faces 79 on their undersides by the opposite pass opening wedges 80. The wedges 80 are tensioned by nuts 85 on rods 82 against springs 83 in sockets 84, access to the nuts being provided through openings 86 in the housing uprights 31. The upper roll upper chocks 88, Fig. 1, have straight sides guided by the legs 52 and have anti-friction liners 91 and are downwardly urged and adjustably located by screw jacks 92 in the caps 35 operated by a lever 93 and ratchet 94. The lower roll chocks are substantially inverted counterparts of the upper roll chocks and are similarly provided with opposite wedges and have upwardly urging screw jacks 102 in the housing bases operated by a ratchet-lever 103, shaft 104 and gears 105, 106.
Patent GB-594771-A (GB)
Title: Improvements in or relating to metal removing tool or cutting tool or tool blade
IPC: B23C5/24
Filed: 1944-04-28
Abstract: 594,771. Tools and tool-holders. WEDDELL, R. R. April 28, 1944, No. 8023. Convention date, May 10, 1943. [Class 83 (iii)] Boring-bars milling-cutters.-Inserted blade milling cutters, lathe tools, boring-bars &c., have a body 10 with open-ended recesses 11 for the blades 12, each of which is provided with a number of surfaces 17, 28 forming obtuse angles with a side face 20, to coact successively after repeated regrindings with an adjusting grub-screw 21 in a tapped hole 22 intersecting the recess ,11 at an acute angle. One of the adjusting surfaces is formed by the end of the blade remote from the cutting edge. Each recess 11 and blade is of triangular section and a grub-screw 17 perpendicular to a flat face of the blade locks it in the recess after adjustment. The screws 17, 21 are offset from the axis of the blade as shown in Fig. 4 to avoid mutual interference, and when the screw 21 has reached the limit of its adjustment with the surface 28 it is retracted in the hole 22 to engage the next surface 27. One or more of these surfaces may be formed at the end of an inclined groove 30 in the face 20 of the blade, and in a modification, shown in Fig. 7 as applied to a fly-cutter, two opposed grooves 30, 32 are provided in the blade for co-action with two inclined screws 17, 21 which adjust and lock the blade in the recess. The blades may be formed by machining, forging or casting and the recesses 11 by broaching &c.
Patent GB-557730-A (GB)
Title: Improvements in and relating to lifting and hauling devices
IPC: B66F1/06
Filed: 1942-06-12
Abstract: 557,730. Hauling jacks. HARDYPICK, Ltd., and MAYER, E. June 12,1942, No. 8055. [Class 78 (iii)] In lifting and hauling jacks of the type comprising a block 12 to which the load chain, &c. 15 is connected and which slides over a rack-bar 19 under the pull exerted by a handlever 28 pivoted to the block 12 and engaging in succession the teeth 18 of the bar 19 by a fulcrum pin 29, the retaining pawl 16 of the block 12 is releasable by a foot-operated pivoted lever 31. The lever 31 swings about the pivot connection 26 of the link 27 which joins the handle 28 to the block 12, and has a parallel co-operating arm on the further side of the pivot 26, a bridge 32 uniting the two. The outer end of this arm, together with the corresponding end 30 of the lever 31, raises a transverse plate 20 to which the pawl stem 21 is coupled in a swivelling manner against the pressure of a spring. A nose 33 in the end 30 engages the plate 20 to limit the downward motion of the lever 31.
Patent GB-590597-A (GB)
Title: Improvements in or relating to the separation of finely divided solids from gases bytreatment with liquids
IPC: B01J8/18
Filed: 1944-05-01
Abstract: <PICT:0590597/III/1> The removal of entrained solids with hot gases leaving a reaction chamber containing finely divided catalyst fluidized by hydrocarbon gases or vapours prevented by a dense shower of liquid of such input temperature and velocity that the entire outlet area is screened by the shower, vapours evolved from the liquid being removed with the gases.  Apparatus for cracking hydrocarbons comprises a vessel 1 containing a catalytic mass 6 maintained in fluidized condition by incoming feed material introduced preferably in gaseous form through inlets 2 and a screen 3. Vapour products leave by way of a stack 9 at the bottom of which an annular conduit 10 with two concentric series of jets 12 provides a dense liquid shower falling on a baffle 14 at or slightly below the upper surface 7 of the dense phase of the catalyst.  Fresh catalyst is continuously introduced through a pipe 5 the used material being withdrawn through a pipe 4.  In one modification, liquid from three concentric rings of jets is received in a cylindrical container with funnel-like base extending into the catalyst a horizontal baffle being positioned beneath its dampered outlet.  In another two or more vertically spaced jet rings produce a commingled shower which may be scattered by a baffle after reaching the catalyst.  The apparatus may be used as the catalyst regenerator or in other processes of gas absorption, distillation and carbonization, etc.  Suitable liquids for scrubbing the gases from the cracking process which involves reaction temperatures of 800-1,000 DEG F comprise recycled heavy oil or oil catalyst slurry, lighter oil, or diphenyl; water, which is also suitable for use in the regenerator, may also be employed. Specifications 554,227 and 557,624 are referred to.