baber/WOPTO huggingface dataset:
Patent GB-478885-A (GB)
Title: Means for securing printing plates to printing cylinders
IPC: B41F27/12
Filed: 1936-07-25
Abstract: 478,885. Printing - surfaces. HOE & CO., Ltd., R. (Hoe & Co., Inc., R.) July 25, 1936, No. 20673. [Class 100 (ii)] A printing-cylinder is provided with a gap to receive the ends of a flexible printing- plate, a member movable into a position to have one end of the plate attached thereto and movable to strain that end across the gap towards the other end of the plate, this member having a surface adapted to form across the gap a continuation of the periphery of the cylinder, and a resilient link which so connects the member to a manually-operable device that the link is strained by the device as the member moves into plate-straining position and reacts to maintain the member resiliently in straining position. The cylinder includes a shell 12, radial ribs 14, end walls 16 provided with trunnions 18, and bearer rings 21 surrounding the trunnions. An arcuate gap 24 is formed in an offset portion of the shell, and a filler block 25 and a stop block 30 are secured to one side thereof. A plate-securing member 38 provided with tubular trunnions 42 turning in the rings 21 is mounted in the gap 24, and has a stop shoulder 46 adapted to engage the stop block 30 in the platesecuring position. The outer surface 47 of the member 38 is shaped to conform with the peripheral contour of the cylinder. Means for turning the member 38 comprises a longitudinal shaft 48, crank members 56 secured to the shaft, arcuate resilient links 66 pivotally mounted at one end in spaced ears on the cranks, and pivotally mounted at the other end in spaced ears in lever arms 70 secured to the member 38. To rotate the shaft 48, a lever head 80 secured thereto outside the ring 21 is provided with a socket in which is removably mounted an operating tool 86. A locking-mechanism is provided, as described in Specification 447,303, to ensure that the tool 86 mav be inserted and removed from the head 80 only at predetermined phases of the operation of the device. Clamp plates 102 attached to one end of a flexible printing-plate P are placed in a longitudinal recess 98 in one face of the gap 24 and retained by a pair of opposed spring-pressed plungers 106 mounted in the bearer rings 21 ; the member 38 is then moved to open position to receive the clamp plates 102 on the other end of the printing-plate in a recess 100 formed therein, and then moved back into gap-closing position to strain the printing-plate. In the gap-closing position as shown, the cranks 56 are exerting through the resilient links 66 their maximum pull on the member 38. The gap remaining in the cylinder when the printing- plate is in position may be varied by using thinner clamp plates 102 and where a doctorblade is to engage the cylinder the gap may be reduced to a minimum and filled with a suitable composition.
Patent GB-207012-A (GB)
Abstract: 207,012. Harvey, W. R. Oct. 30, 1922. Cylinders and like elements, rotating; illumination, changing advertisements by controlling; actuating.-An autographic cash till is provided with an advertisement cylinder 34 rotated stepby-step or to and fro by the movements of the drawer through a bell-crank lever 3, arranged to drive both the cylinder and the record-strip. The cylinder consists of longitudinal grooved bars 56 covered by strips 57, to form slots for the reception of translucent notice plates 59 and is driven step-by-step by a pawl 37 shaped to engage pins 39 and to lock against a fixed pin 41. The pawl is pivoted on the bell-crank lever 3 which is provided with a roller 5 to abut. against the drawer end 6. An electric lamp within the cylinder is put on circuit at each operation by means of a switch consisting of a spring plunger moved to open the circuit by the return of the drawer.
Patent GB-470531-A (GB)
Title: The manufacture of vat dyestuffs
IPC: C09B5/40
Filed: 1936-07-27
Abstract: Dyes are made by acylating an alkaline condensation product of 1-(Bz.1-benzanthronylamino)-4- or 5- or 8-aminoanthraquinone which contains in the 5- or 6- or 7- or 8- position of the benzanthrone nucleus the residue of a diamine of the anthraquinone series.  Such initial materials are obtained by condensing Bz.1.5 (or 6 or 7 or 8) dihalogen benzanthrones with two molecular proportions of a diamino anthraquinone and then subjecting the product to the action of an alkaline condensing agent, which, if a monoacyl diamine has been used, splits off the acyl group. Compounds containing the radicals of two different diamines may be prepared.  In examples, the substance obtained by treating with alcoholic caustic potash the condensation product from Bz.1.6-dibromobenzanthrone with two molecular proportions of either 1.5-diaminoanthraquinone or of 1-amino-5-benzoylaminoanthraquinone (the benzoyl group being split off), and which itself dyes cotton grey shades not fast to chlorine, is treated with (1) benzoyl chloride (olive-brown shades on cotton) or benzoic anhydride or halogenated benzoyl chlorides, (2) acetic anhydride (olive-grey shades), (3) 1-nitro-anthraquinone-2-carboxylic acid chloride (black shades) or 1-aminoanthraquinone -2-carboxylic chloride (violet shades).  The above initial substance may be replaced by compounds containing an amino group in the 4- or 8-position of the aminoanthraquinone residue which is attached to the 6- or 7- or 8-position of the benzanthrone radicle.  Specification 337,741, [Class 2 (iii)], is referred to.
Patent GB-1402396-A (GB)
Title: Rotor for a rotary internal combustion engine
IPC: F01C19/10
Filed: 1973-05-02
Abstract: 1402396 Rotary positive-displacement machines NISSAN MOTOR CO Ltd 2 May 1973 [6 May 1972] 20772/73 Heading F1F To reduce leakage of exhaust gases into the intake port 15 of a trochoidal-type I.C. engine each flank of the rotor 7 has on its leading portion a layer 18 of a material e.g. aluminium, nickelaluminide, lead, tin, copper, a plastics material or a varnish, which is softer than the material of the rest of the rotor. The plastics material may be polyamide, phenolic resin, polyfluorethylene or silicone rubber. The varnish may comprise graphite, polyamide and carbon fibre to render it self-lubricating. The layer may be one of e.g. platinum or copper oxide, so that it acts as a catalyst relative to the exhaust gases.
Patent GB-495270-A (GB)
Title: Improvements in and relating to electric induction motor equipments
IPC: H02K17/36
Filed: 1937-07-27
Abstract: 495,270. Control of two motors. WALSH, A., GURNEY, N. R. D., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 27, 1937, No. 20794. Addition to 471,113, [Group XXXV]. [Class 38 (iii)] For driving two loads at equal or proportional speeds, each is driven by an induction motor having a pair of stators and a common rotor arranged according to the parent Specification, and the winding PA, PB on one stator of each motor is connected to the supply while the windings TA, TB on the respective second stators are both connected across the same or separate resistances RA, RB, and interconnected electrically by leads L. In a modification, Fig. 2 (not shown), the resistances are arranged to be disconnected upon shutting down the drives. The disconnection may be effected by the braking control.
Patent GB-391181-A (GB)
Title: Improvements in or relating to earthenware and stoneware tubes, pipes, gullies and the like
IPC: B28B21/54
Filed: 1931-07-21
Abstract: 391,181. Conduits. WATKINS, G. L., Heathfield, Lake Road North, Cardiff. July 21, 1931, No. 20812. [Class 33.] In the manufacture of conduits of earthenware in an extrusion press wherein the plastic mass in assuming its tubular form becomes divided into longitudinal sections which are subsequently pressed together, the resulting joints are adapted to be other than of butt formation, e.g. scarf, semi-scarf, V, &c. joints, with or without plain butt portions.
Patent GB-831312-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A46B9/04
Filed: 1956-07-05
Abstract: 831,312. Brushes. PIERMARI, E. July 5, 1956 [April 3, 1956], No. 20839/56. Drawings to Specification. Class 19. The transverse section of the head of a toothbrush is of V-shape with the limbs of the V diverging downwards at an angle of approximately 78 degrees. The bristle tufts are secured in the facing surfaces of the limbs. The tufts may be either at right angles to or inclined to these surfaces, which may be formed in a step like manner.
Patent GB-594703-A (GB)
Title: Improvements in or relating to apparatus for the liquid treatment of materials in strip-like form
IPC: G03D3/13
Filed: 1944-10-26
Abstract: Apparatus for processing or treating strip <PICT:0594703/IV/1> material comprises two elongated tanks 1, 2 joined together by two flattened, elongated, liquid - tight chambers 3, 4, the lower tank 2 being closed and both containing a series of bobbins 7, 10 for guiding the strip material in the chambers 3, 4.  Screw supports in both tanks support the shafts 7A, 10A, carrying the bobbins permitting them to be removed easily.  Different sizes of bobbin are used for films or strips of different widths.  Horizontal strengthening members 15 are welded to the walls of chambers 3, 4 and horizontal supports 16 hold the chamber 3, 4 and bear against the struts 17 upon which the whole apparatus is mounted by means of screws 18, 18A and bracket 19.  The lower tank 2 is closed by a dome-shaped cover 11 which is secured in position by a bar 12 and wing nut 13.  There is a liquid entry point in the lower tank and an exit point 22 in the upper tank 1 which also has a socket 21 for a thermometer or a thermocouple.  Pumps for admitting, withdrawing and circulating the liquid in the tanks and a heat-exchanger unit are provided.  Tensioning means, e.g. a sprocket and pulleys, are mounted at the entry point for the strip material and a second sprocket mounted at the exit point pulls the strip material through the apparatus.  The latter sprocket may be replaced by a pair of contacting rollers for use with unperforated material.  When the apparatus is used for dyeing or impregnating ribbons or tapes, the material is pulled through by means of a pair of normally contacting rollers.
Patent GB-314240-A (GB)
Title: Improvements in or relating to looms for weaving carpets and like tufted pile fabrics
IPC: D03D39/06
Filed: 1928-07-19
Abstract: 314,240. Southwell, Ltd., H. & M., Head, T. W., and Perry, E. J. July 19, 1928. Pile-fabric looms; creel frames. - A tuft-yarn tube carrier frame, for use in looms for weaving carpets and like tufted pile fabrics, comprises at each end a pivoted clamping jaw j co-operating with a fixed jaw e to mount and lock the frame on the carrier chains t. The jaw j is pivoted on a pin carried by lugs h on the fixed jaw e, and is actuated by toggle links m, o under control of a spring r. It is released by pressure of a pin v on the transfer clutch u, inserted through an aperture w. Alternatively, a pin may be provided on the toggle and engaged by the clutch. Specification 293,513 is referred to.
Patent GB-970183-A (GB)
Title: Gas burners
Inventor: HEYWORTH JOHN
IPC: F23D14/00
Filed: 1962-05-31
Abstract: 970,183. Gas burners. JOSEPH LUCAS (INDUSTRIES) Ltd. July 4, 1963 [May 31, 1962], No. 20980/62. Heading F4F. A gas burner for gas turbine engines comprises a tubular body 1 having a cap-shaped nozzle 7 having a central aperture from which a tubular spigot 8 extends inwardly to support the end of an electrically-operated igniter 5, the nozzle 7 having annularly-disposed outlets 9 formed therein. The igniter 5 extends through a closure member 3 and comprises a tubular electrode and a coaxial rod electrode spaced therefrom by insulating material. An annular semi-conductor is disposed between the electrodes at their inner ends.
Patent GB-1177692-A (GB)
Title: A Fusible Salt Bath for the Heat Treatment of Steel
Inventor: ALBRECHT CARL
IPC: C21D1/46
Filed: 1967-05-05
Abstract: 1,177,692. Fused salt baths; heat treatment. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. May 5, 1967 [May 5, 1966], No. 20982/67. Headings C7M and C7N. A fused salt bath for the heat treatment of steel consists essentially of a mixture of an alkaline earth metal chloride and a fluoride - of a metal whose oxides form spinels with iron oxide, and from 0À5 to 1% by weight of boron trioxide. Specific compositions disclosed are 94% BaC1 2 , 5À4% MgF 2  to which is added 0À6% boron trioxide. The boron trioxide content is preferably 10-15% of the weight of the MgF 2  content.
Patent GB-695965-A (GB)
Title: Improvements relating to electric switchgear
IPC: H01H33/34
Filed: 1950-08-24
Abstract: 695,965. Switchgear structures; automatic circuitbreakers. REYROLLE & CO., Ltd., A., and FENTON, W. Aug. 22, 1951 [Aug. 24, 1950], No. 20991/50. Class 38 (v) Switchgear, particularly of the vertically-withdrawable type described in Specification 695,962, comprises a circuit-breaker having spring-operated closing means, and two or more hydraulic rams A, B, one, A, of which serves for stressing the closing spring of the breaker, the rams being supplied alternatively with pressure liquid by a motor-driven pump C. The other ram B may be used to raise and lower the breaker relatively to a carriage carrying the ram, or a number of rams may be associated respectively with a number of closing springs. A manuallyoperable two-way valve E normally connects the pump to the ram A over a flexible pipe E<SP>3</SP>, and the motor D may be remote-controlled or started automatically when the breaker opens. The release valve A<SP>2</SP> may be automatically opened when the spring is fully charged, the motor subsequently being cut off automatically, or the motor may be cut off when the spring is fully charged and the valve A<SP>2</SP> opened when the breaker opens.
Patent GB-732319-A (GB)
Title: Improvements in variable speed driving mechanisms
IPC: F16D43/26
Filed: 1953-07-29
Abstract: 732,319. Variable-speed gear; cams. WALLACE & TIERNAN, Inc. July 29, 1953 [Aug 26,1952], No. 21088/53. Classes 80 (2) and 80 (3)' A variable-speed driving mechanism comprises a clutch 6, 7 interposed between a driving shaft 5 and a driven shaft 8 and disengaged by relative axial movements of the two shafts, the driving shaft 5 being reciprocated to engage the clutch for a proportion only of each revolution by means of a cam and follower device 14-20 adjustable so as to vary the proportion of a revolution during which the clutch is in engagement. The driving shaft is rotated from a power input shaft 2 and the driven shaft rotates an output shaft 11. In the form shown the clutch is biased towards the engaged position by a spring 13. The cam and follower device consists of a pin 15 in the driving shaft 5 pivotally supporting a yoke 14 carrying, on pins 16, rollers 17, 18 engaging a rotatable outer cam 19, having raised portion 19a, and an inner cam 20 fast on the wall of the gear casing and having a raised portion 20a. As shown, the raised portions 19a, 20a each extend over 180 degrees of their cams, so that when the cam 19 is rotated to the position in which the raised portions are superposed circumferentially adjacent each other, the follower 14-18 is not operative to disengage the clutch against the spring 13 and a direct drive is obtained; when the cam 19 is rotated through 180 degrees from this position, the rollers 17, 18 are continuously engaging one or other of the raised portions 19a, 20a, with the result that the shaft 5 is always held to the left of Fig. 1 and the clutch is permanently disengaged. Variations of ratio between 1: 1 and 1: 0 can be obtained according to the angular setting of the cam 19, which is provided with teeth 21 meshed by a worm (not shown) turned by operation of a handle 25 for selecting the ratio. The raised portions 19a, 20a of the cams may be extended over more than, or less than, 180 degrees of the cam faces. The leftwards disengaging action of the shaft 5 in Fig. 1 produced by the cam and follower engages the driven clutch member 7 with a brake plate 28, whereby the output shaft 11 is either rotated by the clutch, or brought to rest on disengagement of the clutch. In the form shown, the clutch is spring engaged and disengaged by the cam and follower means; in a modification, Fig. 5 (not shown), the clutch is biased to the disengaged position by a spring and moved to the engaged position against the spring force by the cam and follower means. The device is particularly applicable to driving a counter-weight along the lead screw of a scale beam, or for driving a dry feeder of the type described in Specification 724,475, [Group XXX].
Patent GB-441494-A (GB)
Title: Improvements in or relating to hair clips
IPC: A45D8/16
Filed: 1934-07-20
Abstract: 441,494. Hair-curling appliances. SHARP, G. H., Woodlands, Wetherby Lane, Harrogate. July 20, 1934, No. 21255. [Class 131] In a clip for setting e formed curl of hair of the kind comprising two similarly shaped perforated arms A, A<1> connected together by a loop A<2> forming a spring hinge and in which the free end of the arm A is provided with an upturned or bent over part A<4> to act as a catch or retainer for the free end of the arm A<1>, the sides of each arm are parallel for the greater portion of their length and tapered towards their free end, and the loop A<2> is offset to that side of the clip towards which the part A<4> is directed, so that the side of the arm A adapted to contact with the head is free from projecting parts.
Patent GB-1313167-A (GB)
Title: Methods of manufacturing semiconductor devices
IPC: C25F3/12
Filed: 1970-05-04
Abstract: 1313167 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 May 1970 [7 May 1969] 21276/70 Heading H1K A plurality of discrete semi-conductor devices is made from a semi-conductor plate consisting of a surface zone 2 on a substrate 1, the zone 2 and substrate 1 having differing conductivities, by chemically etching grooves 20 partly through the zone 2, electrolytically etching the entire substrate 1 as far as the zone 2, the conductivity difference causing the electrolytic etching to cease at the junction between the substrate 1 and zone 2, and subsequently chemically etching the zone 2 up to the bases of the grooves 20 to divide it into separate wafers each of which contains a discrete device. As shown an n-type Sbdoped Si layer 2 is epitaxially deposited on an n+ As-doped Si substrate 1 and p-type regions 3-6 are formed therein by selective diffusion of B. In an alternative the epitaxial layer may be p-type, but in this case it is necessary to provide a high ohmic n-type layer at the boundary between the substrate and the epitaxial layer, in order to limit the electrolytic etching process. Grooves 20 are selectively etched in the layer 2 to a depth less than that of the regions 3-6 so that when the areas between the grooves are ultimately separated to form discrete devices the PN junctions therein extend right across the wafers so formed. In the structure shown the wafer including parts of regions 3/10/4 comprises an IGFET while the wafer including parts of regions 5/11 comprises a diode. During the electrolytic and chemical etching of the substrate 1 the semi-conductor plate 1,2 is stuck to a glass support 30 by means of etch-resistant cement 31. Preferred etchants are specified.
Patent GB-650139-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D99/00
Filed: 1948-08-12
Abstract: 650,139. Gas burners. NORTH THAMES GAS BOARD, (formerly GAS LIGHT & COKE CO.), HAYMAN, R. F., and HARRIS, N. D. B. Aug. 12, 1948, No. 21322. [Class 75(i)] A flat flame gas burner nozzle 7 is formed by making two parallel slits 8 in a piece of metal such as a disc 5 and bending the portion between inwardly in the form of a trough. The disc 5 may be attached to the end of a tube 4, the troughshaped portion projecting inwardly of the tube, by welding, spinning or connecting. Fig. 7 shows a metal strip 13 formed with a number of nozzle outlets 7 welded into a longitudinal slot formed.in a tubular gas duct 12. An H-shaped opening, Fig. 3 (not shown) may be formed in the nozzle outlet by a third cut 9 bisecting the material between the parallel stop 8. The disc 5 may also be formed with an upstanding ridge, the slot 8 being cut at right angles to, and the slit 9 cut parallel with, the ridge axis.
Patent GB-749016-A (GB)
Title: Improvements in or relating to electric circuit arrangements including band-pass filters
IPC: H03H9/54
Filed: 1953-07-31
Abstract: 749,016. Filters. GENERAL ELECTRIC CO., Ltd., and SIMPSON, A. I. F. Aug. 3, 1954 [July 31, 1953], No. 21357/53. Class 40(8). A band-pass circuit arrangement comprises a band-pass filter followed by a parallel tuned circuit which includes some resistance, the passband being varied by varying the proportion of the inductance or capacity of the tuned circuit across which the input signal is applied. The tuned circuit is coupled directly to the band-pass filter (not shown) which may be a piezo-electric filter as described in Specification 679,888. The parallel tuned circuit comprises three condensers 5, 6, 7, an inductor 8 and a resistor 9 which may represent the resistance of the winding of the inductor 8. In the example shown, a three-way switch 11 enables the capacity connected across the output of the crystal filter to be varied. As the band width is increased by introducing extra capacitance, the voltage level of the intermediate signal is reduced and, if the circuit forms part of an amplifier, the gain is reduced. Condensers 15, 16 of values approximately one-tenth the values of the condensers 5, 6, 7 may be switched in by a switch 14 to compensate for the detuning of the parallel-tuned circuit.
Patent GB-188091-A (GB)
Title: An adjustable seat
IPC: A47C3/20
Filed: 1921-08-12
Abstract: 188,091. Edwards, H. Aug. 12, 1921. Tables convertible into seats.-The underside of a seat frame is flat so that when inverted and placed in position on rails or bearers it will serve as a table. The side frame members or uprights 7, 8 of the seat are provided with horizontal rails or bearers 9, 10 so that the seat 11, which is provided on its sides with ledges or runners 13, 14 can be engaged with any pair of the rails. The seat may be secured against accidental dislodgement when the chair is tilted forwardly by projections provided at the front of the rails 9, 10, or bv a cord. A box-like receptacle 15 is provided below the seat frame.
Patent GB-479751-A (GB)
Title: Improvements in or relating to television receiving apparatus
IPC: H04N5/64
Filed: 1936-08-05
Abstract: 479,751. Loud-speakers. MEAD, J. E., and SPRATT, H. G. M. Aug. 5, 1936, No. 21514. [Class 40 (iv)] [Also in Group XL] A television receiver comprises a cathode-ray tube and a loud-speaker whose field is neutralized by an auxiliary magnetic system attached to the rear of the loud-speaker 5 and comprising a coil 8 between magnetic plates 9, 10. Specification 448,653 is referred to.
Patent GB-493475-A (GB)
Title: Improved centrifugal apparatus for removing rust scale and the like from metallic surfaces
IPC: B08B7/02
Filed: 1937-01-02
Abstract: 493,475. Apparatus for removing rust, scale, &c. LUHR, F. A. Jan. 2, 1937, No. 21548. Divided out of 493,435. [Class 99 (ii)] Apparatus for removing rust, scale, &c. from metallic surfaces comprises a rotatable head 1, Fig. 1, upon which is rigidly mounted, preferably by bolts 2a having square portions 2a, a number of resilient tools 7 each in the form of a pack or block of spring-steel &c. laminae. in a modification, Fig. 2, the head 1 is provided with a number of axially-projecting bolts 3 each having a flattened mid-portion 4 to which the tools 7, 8 are pivotally secured by transverse bolts 5. Alternatively, one or more tools 13, 14, Fig. 5a, are pivotally mounted on each bolt 3 by a hanger 6, which may be provided with a stop 6<1> to abut against an axial projection 2<1> on the head and limit swinging movement of said hanger. Fig. 8 shows a further modification in which two tools 16, 17 are mounted in hangers, constituted by side plates 6<1> held together by bolts 13, suspended unsymmetrically on pivots 5 carried by the axial bolts 3. Yieldable material, such as presspahn, rubber &c., may be interposed between the laminae of each tool, and, as shown in Fig. 8, the individual laminae of a tool may have different-shaped working edges.