baber/WOPTO huggingface dataset:
Patent GB-278327-A (GB)
Title: Improvements in centrifugal separators and driers
IPC: B04B1/14
Filed: 1927-08-15
Abstract: 278,327. Fesca, P., (trading as Fesca & Sohn, C. A.). Oct. 1, 1926, [Convention date]. Density and strainer separators.-The drum of a centrifugal separator is composed of two members 1, 7, and is held closed by fluid pressure means consisting of a cylinder 5 attached to the upper member 1 and a piston 8 attached to the lower member 7. In the construction shown in Fig. 1, the mixture for the separator is supplied through the hollow shaft 3, and the cylinder 5 is supported by pillars 4. The cylinder 5 works in a cylinder 6 on the drum section 7 and contains the piston 8 on a rod 9 provided with a duct 12 for the supply of pressure fluid. This fluid lifts the piston 8 and depresses the cylinder 5 so pressing the drum rims 14, 15 together. The pressure fluid can be drawn off to allow the section 7 to drop by gravity so that solids can be discharged between the rims 14, 15. In the modification shown in Fig. 2, the separator is driven from below and a spring 22 lifts the upper section 1 for the discharge of the solids when the pressure fluid is drawn off. The pressure fluid arrangement can be used with strainer or density separators.
Patent GB-647494-A (GB)
Title: Improvements relating to bottle cap applying machines
IPC: B67B3/062
Filed: 1947-08-06
Abstract: 647,494. Filling and capping bottles. MID-WEST BOTTLE CAP CO. Aug. 6, 1947, No. 21471. Convention date, July 15, 1941. [Class 125(ii)] In a machine for applying hood caps to bottles, the caps are fed singly from a magazine by means of a suction cup cap selector into a shoot down which they travel disposed vertically on edge, the cap selector being actuated through mechanical linkage by a bottle detector disposed in the path of the bottles moving towards a capping station, and the lower end of the shoot being open and having depending projections for supporting engagement with a cap which has passed down the shoot, so that as a bottle is being traversed beneath the chute the head of the bottle passes between said projections and engages with the inner surface of the rim of the cap and draws the cap out of the shoot. As shown, bottles 25 to be filled and capped are transferred from a rotary table 23 to bottle stools 33 on a continuously rotating table 32 of a filling machine by an intermittently-rotating star wheel (not shown). After filling, the bottles are returned by the star wheel to table 23, passing intermediately beneath a capping head 171. In passing from table 32 to the capping position, a bottle takes up a hood cap resting on projections 163, 164 at the foot of a shoot 147, 148, Fig. 3, and at the capping position a cap disc is forced into the bottle mouth on top of the hood, the skirt of which is then compressed around the bottle mouth 173, Fig. 1. The hood-feeding mechanism is operated when a wheel 94 on an arm 93 is forced outwards by engagement with the neck of a bottle being filled. Movement of arm 93 acts, via an overtravel connection 92 which yields with oversize bottles, shaft 87, arm 86, link 84 and lever 81, 82 to reciprocate a hood-selecting piston 103 carrying a suction cup 107, 109 connected by a valve 104 to a suction tube 105. A magazine 116 carries a stack of hoods 118 supported on inner and outer spring fingers 133, 138. As piston 103 retracts it draws the lowermost hood over fingers 133, 138 with a rotary motion due to the engagement of a helical groove in the piston with a fixed pin 66, the rotary motion assisting in the separation of the hood from the stack. When valve 104 engages the end of cylinder 58 it moves against a spring 106a to cut off the suction cup from suction pipe 105 and connect it to outside atmosphere; the hood, detached from the cup by a rubber band 146 on arms 144, drops down the shoot 147, 148 to rest on projections 163, 164 where it is retained by curtains 165, 165a of chain fabric which act to wipe the cap onto a passing bottle (Fig. 12), curtain 165 dropping back before the cap is fully applied to retain the succeeding cap in the shoot.
Patent GB-500215-A (GB)
Title: Improvements in or relating to sheet feeders
IPC: B65H7/12
Filed: 1937-08-04
Abstract: 500,215. Printing-machines; feeding sheets. HARRIS-SEYBOLD-POTTER CO. Aug. 4, 1937, No. 21530. Convention date, March 30. [Classes 100 (i) and 100 (ii)] Tripping arrangements.-A sheet detector for stream feeders for printing &c. presses which operates to stop the feed or the press when two sheets are fed instead of one, or when a crumpled sheet is fed, is constructed so as to act on the forward end of the stream, where the stream is of one sheet thickness for part of the time, and the detector is movable bodily from operative to inoperative position and vice versa so as to engage the sheet momentarily. There are preferably two detector devices acting on the edges of the sheet, and each detector is carried by a bracket 23 mounted on a laterally adjustable block 19, which also carries mechanism for effecting the side register of the sheets. In Fig. 1, the detector takes the form of a choke bar 43 which is mounted adjustably in a swinging bracket 41 operated by a link 47, lever 48, and a lever 53 controlled by a cam 55 on the shaft of a transfer cylinder 12 which takes the sheets from the front stops 15 for transfer to the grippers 17 of an impression cylinder 11. The bar 48 is thus lowered into contact with the stream of sheets just after the leading sheet is being withdrawn by the cylinder 12, and the bar normally rests on the thickness of the one sheet which succeeds the sheet being withdrawn. If this is a double or crumpled sheet, the bar 43 stops the feed, or in any case delays the feed so that a detector arranged at the front stops the machine in known manner. The bracket 41 raises the bar 43 before the next sheet in the stream reaches the bar. The side-registering devices carried by the bracket 23 comprise a gauge 22 and a roller 30 mounted in a lever 31, which is oscillated by a cam 39, lever 37, and a headed pin 33, so as to move the roller 30 into and out of contact with, a driven roller 24. The detector &c. mechanism is arranged between the feed board 14 and the conveyer 9 which advances the stream of sheets, and a plate 20<1> (not shown) is arranged between the two sets of detectors in the same plane as the board 14, and plates 20 are carried by the adjustable brackets 19 so as to be adjustable therewith. In a modification, the bars 43 are replaced by calipering members 58, Fig. 8, co-operating with lower rollers 56. The calipering members are raised and lowered in the same manner as the carriers 41 are swung, and in the event of the passing of a double sheet, a latch 64 is released from a catch 66 on a lever 68, and thus a cam 70 permits turning of a shaft 71 connected to a device for stopping the machine in known manner.
Patent GB-581410-A (GB)
Title: Curing of polymeric materials
IPC: C08L75/00
Filed: 1944-02-24
Abstract: Organic diisocyanate - modified polyester - amides are cured by heating in uniform admixture with a protein or a denatured protein, a curing agent, viz.: formaldehyde or a formaldehyde-liberating substance or a dichromate, and preferably with a curing catalyst, viz.: an acid or a material which is substantially neutral but which develops acidity under curing conditions.  Proteins specified are glue, gelatine and casein. The ingredients are mixed or milled together with or without water or an organic solvent, and 25-175 parts of protein or denatured protein may be used per 100 parts of polyesteramide.  The fillers, other plastic materials, detackifying agents, plasticisers, antioxidants, pigments, solvents, polyester-and polyamide-forming reactants, diisocyanates and articles and applications listed in Specification 581,439 are listed here also. In examples, the organic diisocyanate modified polyesteramide obtained according to example 7 of Specification 580,524 is heated in admixture with glue, gelatine, or casein and with hexamethylolmelamine hexamethyl ether or ammonium dichromate, and with 2,4-dichloro-1-naphthol.  Specifications 580,526 and 581,146 also are referred to.
Patent GB-587888-A (GB)
Title: Improvements in and relating to supply circuits for mercury vapour discharge tubes and like appliances
IPC: H05B41/232
Filed: 1943-12-24
Abstract: 587,888. Supply systems for space discharge apparatus. HANOVIA, Ltd., and BRENCH, G. W. Dec. 24, 1943, No. 21677. [Class 38 (iv)] An A.C. supply circuit for a mercury vapour or other discharge tube a comprises a saturated choke f which is shunted across the supply, is in parallel with the discharge tube and is separate from it on the one side by a choke g of normal inductance and on the other side by a condenser h, whilst a resistor i is provided between the shunt and one of the supply terminals.
Patent GB-841809-A (GB)
Title: Austenitic alloy
Inventor: ARWIDSON SVEN GUSTAF
IPC: C22C38/58
Filed: 1958-07-07
Abstract: An austenitic alloy steel of single phase structure contains: .Cr.23-27% .Ni.12-15% .Si.0.5-0.8% .Mn.1.5-1.8% .C.0.1-0.2% .N.0.15-0.2% .P.-0.05% .S.-0.05% .Fe.remainder  The nitrogen content exceeds the quantity required to form austenite from the ferrite that has not been transformed into austenite by the carbon content.  The alloy is substantially free from strong nitride forming elements such as Zr, Ti, Nb, Al, B, Mo and V.  Specification 691,463 is referred to.
Patent GB-240429-A (GB)
Title: Improvements in toothed gearing and the like
IPC: B23F11/00
Filed: 1925-08-31
Abstract: 240,429. Dubus, J. F., and Dubus, P. A. Sept. 24, 1924, [Convention date]. Gear-cutting.-In spiral gearing, the faces of the wheels, which have their axes arranged at right-angles or obliquely, are each formed by a tool which swings about an axis corresponding to that of the other wheel, while the wheel rotates about its own axis, the tool being fed in on a a straight line joining the two axes. Fig. 1 shows a pair of wheels 1, 3 of equal diameter turning about axes at right-angles. In the perpendicular views shown in Figs. 6 and, 7. the blank ABCD for the wheel 1 rotates about the vertical axis Y, while the tool rotates about the horizontal axis Z. On the line Y Z perpendicular to Y, any point M is selected as centre, and a circle is drawn with a diameter equal to the desired transverse thickness of the teeth. A line M 2W is then drawn at an angle b to the vertical corresponding to the inclination at the point 2E on the blank of the curved line produced by the point 2E on the tool moving about the point Z while the blauk rotates about the axis Y. Another line M, Q represents the corresponding inclination at the point E at the root of the tooth. Lines drawn tangent to the circle and parallel to the lines M 2W, M Q intersect at points X, XX, which determine the situations of the cutting edges of the tools fed in at right-angles to the axis Y to form simultaneously the opposite faces of a tooth. The slots in the wheel 3 are similarly produced but with the vertical and horizontal offsets L, K of the tool points from the centre line transposed. According to the Specification, as open to inspection under Sect. 91 (3) (a), the tools may be fed in on curved lines. This subject-matter does not appear in the Specification as accepted.
Patent GB-891691-A (GB)
Title: Yieldable supports for mine arches and other underground supports
IPC: E21D11/18
Filed: 1960-06-22
Abstract: 891,691. Mine arches. PAURAT, F. W. June 22, 1960 [Dec. 21, 1959], No. 21812/60. Class 20(2) In a yieldable mine arch comprising a strut 2 telescopically positioned in a sleeve 1 by an insert 3, the opening in the sleeve is flared as shown and/or the strut is in the form of a wedge. The insert may surround the strut and is located by a projection or carrier device 6, 7. The arch is also provided with guide or braking means such as 9, 10 but see also Figs. 2, 3, 4 and 5 (not shown). In a modification in which the sleeve and the strut are straight or curved, the insert consists of two superimposed stepped wedges and the tapered strut is rounded off at the end on one side whilst at the other side it is provided with a skid of resilient material and engages a braking shoe, see Figs. 6, 7 and 8 (not shown).
Patent GB-977980-A (GB)
Title: Improvements in or relating to mercury electric switches
Inventor: AYRES FREDERICK CHARLES
IPC: H01H29/20
Filed: 1961-06-16
Abstract: 977,980. Mercury switches. D. H. BONNELLA & SONS Ltd. May 16, 1962 [June 16, 1961], No. 21865/61. Heading H2B. In a mercury switch assembly which can be readily adjusted to operate at any selected angle, the switch drum 5 has contacts 7, 8, and is rotatably mounted in a conductive bracket 6 on the contact 7 which is a conductive shaft, while spring blade 16 and spring clip 13 ensure good connections between the switch contacts 7, 8 and the terminals of the switch assembly. Base 9 of the assembly is mounted, for example, in the boot or bonnet of a car such that on raising the lid through a certain angle the mercury switch energizes a lamp connected to terminals 14, 18. Drum 5 has a knurled surface so that it may pre-set to a definite angular position, a spring blade member 19 preventing accidental rotation by pressing on the knurled surface. The drum 5 includes an elongated recess 11 for receiving the contacts 7, 8 and the mercury, the recess 11 being offset with respect to the drum axis.
Patent GB-635338-A (GB)
Title: Improvements in submarine signaling
IPC: G01S15/10
Filed: 1944-11-08
Abstract: 635,338. Echo sounding and distancemeasuring apparatus. SUBMARINE SIGNAL CO. Nov. 8, 1944, No. 22014. Convention date, Sept. 23, 1938. [Class 118 (ii)] In a submarine sound ranging system using a frequency-modulated pulse, the projector is driven by an electronic oscillator whose output frequency is continuously varied, e.g. by variation of an inductance in the oscillator plate circuit. According to Fig. 4, the inductance 4 in the plate circuit of the oscillator tube 2 is varied by movement of a spring-loaded permanent magnet rod 11 by a solenoid 15, the rate of movement and therefore the rate of frequency change depending on the strength of the solenoid pre-set by adjustment of a resistance 16. A key 7 completes the plate supply and solenoid circuits simultaneously. Fig. 5 shows the inductance 17 with a fixed iron core whose permeability is varied by changes in current flow through a coil 18 wound upon a small leg of the core and supplied, through the key 7, from a condenser 19 charged through a resistance 20. In Fig. 6, condensers 27, 28 (forming part of the total capacity 3, 26, 27, 28 across the inductance 4) are shunted by two vacuum tubes 21, 22 whose conductivity is reduced as their grids, on operation of a key 25, are made progressively more negative by charging the condensers 27, 28 through resistances 29, 30 from batteries 31, 32. In a further form the inductance in the oscillator plate circuit is varied by a motor-driven variometer, and in another the plate voltage is varied as a condenser, charged through a. resistance, is discharged through the inductance on operation of a key. The key 7 or 25 may be replaced by one or two pairs of relatively adjustable brushes bearing on an insulating disc having a conducting segment and driven, together with an associated indicator, by a constant-speed motor; a single pair of brushes may be used to close a relay replacing the key 25. Specification 635,334 is referred to.
Patent GB-944820-A (GB)
Title: Improvements in and relating to apparatus for degasifying or deaerating water, particularly boiler feed water
IPC: B01D19/00
Filed: 1961-06-19
Abstract: 944,820. Degasification of water. KONlNKLIJKE MACHINEFABRIEK GEB. STORK & CO. N.V. June 19, 1961 [Aug. 10, 1960], No. 22072/61. Heading B1M. In the degasification of water of the kind where a conical spray of water is discharged into one end of a horizontally disposed vessel heated by direct injectionof steam, from the bottom of which degasified water is withdrawn, the gases leaving by an outlet above the spray, a longitudinally extending secondary chamber closed at one end is provided above the degasified water outlet and into this chamber hot liquid is injected to effect local heating and further degasification. As shown in Figs. 1 and 2, water is injected as a cone 4 into one end of horizontally disposed vessel 1, gases being withdrawn through an outlet at 14. Degasified water is drawn through an outlet 9 which is enclosed by a secondary chamber, formed by a partition 6 (Fig. 2), to which is fed through a pipe 7 a supply of hot liquid, normally hot condensate from an exterior preheater. Live steam is supplied for heating the water by a pipe 12 the outlets of which are downwardly directed to heat the outside of the chamber formed by the partition 6, thereby removing residual gas which collects to the right of a partition 15 and is drawn through a pipe 10 to above the liquid level. A partition 5 is provided dipping below the water level and having therein a pipe 13 both ends of which are open above the water level. Specifications 721,037 and 724,840 are referred to.
Patent GB-907161-A (GB)
Title: Preparation of organo-halogeno-silanes
Inventor: EMBLEM HAROLD GARTON
IPC: B01J23/70
Filed: 1960-06-24
Abstract: Alkyl halosilanes are prepared by reacting at elevated temperatures an alkyl halide with silicon in the presence of a catalyst obtained by reducing cobaltous chloride or bromide by heating it in hydrogen. The cobalt halide may be mixed with the silicon before reducing with hydrogen.  The silicon may be in the form of an alloy, e.g. ferrosilicon containing 10-50%, preferably 10-20%, of iron and the usual impurities.  The particle size of the alloy is preferably from 76 to 104 microns but sizes outside this range are used. Temperatures at which the cobalt halides are reduced are generally above 300 DEG C.  The amount of catalyst should provide a cobalt content of 15-25% by weight of the silicon. Reaction temperatures with the alkyl halides are from 300 DEG -400 DEG C. The examples describe the preparation of methyl and ethyl chlorosilanes, including, for comparison, the use of reduced Co3O4 and no catalyst at all.  The products may also inc clude alkyl halo-hydrogeno-silanes.
Patent GB-870927-A (GB)
Title: Improvements in or relating to air operated keys for maintaining a first element in a selected position relative to a second element
IPC: F16D71/00
Filed: 1959-06-29
Abstract: 870,927. Creasing box blanks. KOPPERS CO. Inc. June 29, 1959 [July 18, 1958], No. 22217/59. Class 100(2) [Also in Group XXIV] An article 47 such as a creasing or slotter head of a printer-slotter machine for making box blanks, is secured to a shaft 53 by means of a key 119 located in key-ways 113, 105 in the article and the shaft and urged outwardly by inflating a tube 121 to lock the article in a selected axial position on the shaft. A resilient strip 123 may be provided at the top of the key, this is compressed between the bottom of the key-way 113 and the key, and shoulders 131 between this and the uncompressed portions aid locking of the article. The key and tube 121 may be considerably longer axially than the article so that several articles may be locked to the shaft by the same key. The key-way 113 in the article may be rectangular in section or the sides may be tapered, and the co-operating part of the key be similarly shaped. As shown in Fig. 4 the key is sectioned and has a wedge section 143 between sections 141 to give a spreading as well as a lifting force. This may be modified by dispensing with the wedge section and employing a tube of roughly triangular section. In a further embodiment a key 319 is pivotable about a fulcrum 151 and the inflatable tube pushes against a projection 153 of the key. U.S.A. Specification 2,191,988 is referred to.
Patent GB-1190118-A (GB)
Title: A Process for Consolidating Powdered Materials
IPC: B01J2/22
Filed: 1968-05-10
Abstract: 1,190,118. Consolidating powders. DEUTSCHE GOLD - UND SILBERSCHEIDEANSTALT. 10 May, 1968 [12 May, 1967], No. 22227/68. Heading B8C. In order to enable one powder consolidating plant to produce powder of different densities a number of known consolidating machines of the kind comprising pairs of opposed hollow rotating rollers which form filter surfaces permeable to gases and can apply mechanical pressure and vacuum at the same time are connected to one vacuum line and the pressure in the rollers of one or more of the machines is automatically controlled by a continuously operating regulator.
Patent GB-625560-A (GB)
Title: Improvements in propelling pencils
IPC: B43K21/20
Filed: 1947-08-11
Abstract: 625,560. Propelling pencils. BELOT, R. Aug. 11, 1947, No. 22266. [Class 146 (iii)] In a propelling pencil of the type in which the lead is advanced step-by-step by the reciprocation of a collet which is constricted by a sleeve to grip the lead, the sleeve being reciprocable over a lesser distance than the collet, the sleeve is confined within a removable point section and is reciprocable between a shoulder and bush secured in the point section. A magazine tube 5 is provided with a lead guide tube 7 urged rearwardly by a spring 9. The rear end of the magazine tube carries a button 6 which is slidable in a sleeve 4 screwed into the casing 1. Depression of the button 6 causes forward movement of the tube 7, the collet 10 carried by the tube 7, the sleeve 11 and the lead 2 until the sleeve is arrested by a shoulder 2a causing the lead to be released. When pressure on the button is released the lead is held by the resilient tip of the point section while the tube 7, the collet 10, and the sleeve 11 are returned by the spring 9 until the sleeve 11 is arrested by a shoulder 3a on the bush 3 so that the collet is restricted to grip the lead. When the collet is not occupied by a lead it can pass through the sleeve 11 to allow the knob to project beyond the end of the casing 1 a greater distance than normal so as to indicate the absence of a lead. Reference has been directed by the Comptroller to Specification 621,302.
Patent GB-347070-A (GB)
Title: Improvements in and relating to doors
IPC: E06B3/74
Filed: 1930-07-24
Abstract: 347,070. Wooden doors. BRUIN, J. DE, Breukelen, Holland. July 24, 1930, No. 22280. [Class 20 (iii).] To prevent warping and other effects due to shrinking in wooden doors having large plywood panels secured to a frame, the panels are secured to guides 6, 7 which engage rails 5 of the frame with some clearance and at their edges loosely engage rebates in the frame, being secured therein by strips 10 or the like.
Patent GB-222151-A (GB)
Title: Process of manufacturing cementitious materials
IPC: C04B7/32
Filed: 1924-09-22
Abstract: 222,151. Spackman, H. S. Sept. 22, 1923, [Convention date]. Cements, Portland, processes for making, materials, and compositions for.-Cements of low lime and high alumina content are made by completely fusing the raw materials in a rotary kiln. The amount of lime should be not more than is necessary to combine with the acid materials in a monomolecular ratio. A typical mixture consists of equal parts of bauxite and lime.