baber/WOPTO huggingface dataset:
Patent GB-277704-A (GB)
Title: Improvements in or relating to sheet conveying mechanism
IPC: B65C9/08
Filed: 1926-05-04
Abstract: 277,704. Stokes & Smith Co., (Assignees of Federwitz, T. A.). July 1, 1925, [Convention date]. Sheet carriers, registering-deivices, and guides; grippers; pile supports.-The description in the present Specification is contained in Specification 254,684 but the claims of the present Specification relate solely to the sheet-feeding mechanism, and the application of the same is not limited to the machine for covering boxes set forth in Specification 254,684. Specicification 230,803 also is referred to
Patent GB-387736-A (GB)
Title: Improvements in coating absorbent materials
IPC: C14C11/00
Filed: 1931-09-03
Abstract: Aqueous dispersions of polymerized monovinyl compounds, for use as coating or impregnating compositions, are obtained by polymerizing aqueous emulsions of the monomeric compounds, which may be acrylic acid esters, styrene, or vinyl chloride or acetate or mixtures thereof, for example by the process of Specification 358,534.  In examples dispersions are obtained (1) by polymerizing an aqueous emulsion of the methyl ester of monomeric acrylic acid by means of hydrogen peroxide at 70-95 DEG  C. while adding a small quantity of Turkey red oil and sodium di-isopropyl naphthalene sulphonate and (2) by polymerizing together styrene and acrylic acid methyl ester. Specifications 294,474, 297,050, 335,185, [all in Class 2 (iii), Dyes &c.], 355,573, 360,822, 369,915, and 374,436, also are referred to.ALSO:Aqueous dispersions of polymerized monovinyl compounds obtained as described in Specification 358,534 by polymerizing aqueous emulsions of the unpolymerized compounds, are used for coating or impregnating absorbent material such as leather, paper, wood, textiles, artificial stone, &c.  Acrylic acid esters, styrene, vinyl chloride or acetate may be used, and other varnish or lacquer constituents such as cellulose derivatives, resins or softeners may be dissolved in the unpolymerized compounds before emulsifying. Alternatively the varnish &c. constituents, or colouring matters, solvents such as toluene &c. may be dispersed in water and mixed with the finished dispersions.  Water-soluble thickening agents such as starch, water glass, polymerized vinyl alcohol, or the sodium salt of polymerized acrylic acid may be added.  The coated surface may be rendered smooth by the application of pressure and heat, or may be sprayed with solvents or their emulsions, to which may be added cellulose derivatives, oil varnishes, aluminium stearate, resins, e.g. shellac, albumen, casein, &c.  In examples, dispersions are obtained (1) by polymerizing an aqueous emulsion of the methyl ester of monomeric acrylic acid by means of hydrogen peroxide at 70-95 DEG C. while adding a small quantity of Turkey red oil and sodium di-isopropyl naphthalene sulphonate and (2) by polymerizing together styrene and acrylic acid methyl ester.  Specifications 294,474, 297,050, 335,185, [all in Class 2 (iii), Dyes &c.], 355,573, [Group IV], 360,822, 369,915; and 374,436, [Group IV], also are referred to.
Patent GB-1529746-A (GB)
Title: Safety harness assembly with warning device for sensing safety belt
IPC: A44B11/25
Filed: 1977-06-13
Abstract: 1529746 Buckles BRITAX (WINGARD) Ltd 13 June 1977 [16 June 1976] 24876/76 Heading E2A A seat-belt harness is provided with means for producing a signal to indicate whether or not the belt is held in it. The harness is formed of a body 1 to which is pivoted a latching-bar 3 which is releasably held in the illustrated closed position by latch 2. The body 1 has a protuberance 16 projecting into the space 14 between bar 3 and body 1 and this, in the presence of belt 15 raises the hinge end of the bar against the bias of spring 8. This operates microswitch 11 to provide the signal. In the absence of belt 15 (Fig. 1, not shown) the spring holds the bar so that the top of slot 5 engages pivot 6 and thus keeps the microswitch in the 'off' position.
Patent GB-1461547-A (GB)
Title: Tandem wheel suspension bogie in a goods vehicle such as a lorry
IPC: B60K17/36
Filed: 1975-06-10
Abstract: 1461547 Driving tandem wheels ZETTERBERGS MEK VERKSTAD AB 10 June 1975 [12 June 1974] 24888/75 Heading B7H In a goods vehicle having a tandem axle bogie comprising on each side of the vehicle a rocker beam 4 carrying a leading driven wheel 8 and a trailing non-driven wheel 12, and also having a driving roller 17 which is movable between a raised inoperative position and a lowered position in which it engages between the wheels 8, 12 to transmit drive from the leading wheel 8 to the trailing wheel 12, the driving roller 17 is carried by an arm 22 mounted on the rocker beam 4 for pivotal movement about an axis extending parallel to the rocker beam so that the arm swings between the raised and lowered positions in a plane at right angles to the rocker beam. The driving roller 17 is mounted by bearings 18, 19 on arms 20, 21 depending from the arm 22 which is pivoted on a shaft 23 carried by plates 24, 25 welded to the rocker beam 4. A double-acting hydraulic cylinder 28 is connected between lugs 27, 30 on a cross plate 26 between the plates 24, 25 and on the arm 22 respectively. The driving roller 17 is formed by a plurality of bent rods 31 arranged around a ring 32 and fixed to a hub 33, the inner end 34 of the roller being tapered to facilitate engagement of the roller between the wheels 8, 12.
Patent GB-460308-A (GB)
Title: An improved lifeguard for use in connection with road vehicles
IPC: B60R21/34
Filed: 1935-09-07
Abstract: 460,308. Vehicle lifeguards. BOARDMAN, E. Sept. 7, 1935, No. 24945. [Class 103 (ii)] In a drop-down and forwardly moving guard, a bumper bar 20, when struck by an object, recedes against spring pressure into a cylinder 17 integral with cradle arm 15 pivoted on a sleeve 10, and a rod 24 on the bumper releases a hook 21 and a safety catch holding the cradle arms 12, 14 whereby the cradle arms unfold and drop and unwind an apron 33 from the bumper bar. The cradle comprises frame members 14, 12 pivoted together and to the ends of the levers 15 and are retained in the closed position, Fig. 2, by the hook 21, Fig. 5, mounted on the sleeve 10 on a transverse bar 9, the hook being in contact with the rod 24 attached to the bumper bar. The hook is also connected by a link 25 to a spring-pressed catch 22 which engages in a slot 162 formed on the lever 15 to retain the cradle in the closed position. When the cradle falls the catch engages in a slot 163 to maintain the cradle in the open position. The hook 21 may be operated manually by rod 42 and lever 41, Fig. 5. The member 14 and link 15 are connected by a pivoted rod 28 slidable in a bracket 29 and encircled by springs 27, 30, the spring 27 being compressed in the closed position of the cradle and positively opens the cradle when the hook 21 is released, whilst the spring 30 acts as a buffer spring when the cradle is open. The cradle is also supported in the open position, Fig. 4, by a rod 37 compressing a spring 40 against a projection 39 on the bracket 8. The end member 12 of the cradle may be resiliently supported by the member 14, which also carries a roller 31 to make contact with the ground: The member 12 carrying the apron 33 pivots upwardly, as shown in Fig. 4, when struck by an obstruction 32,
Patent GB-1342402-A (GB)
Title: Apparatus for the fluid treatment of fabrics in rope form
IPC: D06B3/26
Filed: 1971-04-19
Abstract: 1342402 Winch apparatus DEERING MILLIKEN RESEARCH CORP 19 April 1971 [23 March 1970] 25032/71 Heading D1L Apparatus for treating fabric in rope-like form comprises a container 10 for treating medium 14, a driven winch roller 24, guide means, in the embodiment illustrated an endless chain 46, for guiding the fabric from the roller 24 to the medium 14 and back to the roller, and an elongated endless conveyer 26 located below the roller and having spaced projections 34 extending outwardly from it, the cloth 36 passing through the spaces between these projections. The cloth 36 is towed by chain 46, via swivel 65 and eye bolt 66 attached to the leading edge 94 of the cloth, so that it passes over the roller 24, down to the treatment bath 10 and back up to the roller 24, passing through the spaces between the projections 34 of the conveyor 26. Once on each circuit the swivel 65 activates switch 68 which operates motor 70 to move the conveyor 26 so that the cloth is pushed towards the further end of the roller 24 from chain 46. Means are provided (Fig. 4 not shown) to regulate the distance the cloth moves before motor 70 is switched off. In consequence of this, the cloth is forced into a helical configuration about the roller, each convolution forming pleats 104 in the treatment fluid 14. Bar 38 is situated close to the top edge of projectors 34 and serves to stop the cloth jumping from one space to another. The bar is able to be pivoted upwards if a knot or jam in the cloth strikes it; such pivoting activates mercury switch 52 which turns off the drive motors.
Patent GB-424351-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1933-09-11
Abstract: 424,351. Gas meters. PARKINSON & COWAN (GAS METERS), Ltd., and WHITESMITH, I. N., Terminal House, Grosvenor Gardens, Victoria, London. Sept. 11, 1933, Nos. 25083 and 31555. [Class 54] The floor of the valve chamber a of a dry gas meter is formed integrally with at least two separated circular inner measuring chambers b, c and with the gas ducts leading from the valve ports to the measuring chambers b, c. The measuring chambers b, c are fitted with diaphragms d and are surrounded by outer measuring chambers h, each consisting of a bottom and three vertical sides formed with flanges by which they are attached to a central partition i. The measuring chambers h, the valve chamber and the valve chamber cover k may be secured together by long bolts j, or, alternatively, by studs cast or moulded in the valve chamber. The inlet and outlet gas connections g may be formed separately from the valve chamber and are secured by studs or screws in similar positions at the back of the meter. A compartment f in the valve chamber encloses the counting mechanism. The meter may be enclosed wholly in a casing m which is fitted with a cover n and secured to the connections g. Alternatively, the upper part of the valve chamber only may be surrounded by a protecting shell. The valve chamber may be moulded from a plastic material, such as synthetic resin, or cast or die cast from aluminium alloy, the flag-rod stuffing boxes and bearing points being formed or secured therein during the moulding or casting operation. The chambers h may be of synthetic resin or metal pressings. The protecting shell may also be of synthetic resin. In a meter comprising three measuring chambers, the partition i is omitted. One Provisional Specification states that the inner measuring chambers may be moulded or cast separately and suitably secured to the valve chamber.
Patent GB-1427296-A (GB)
Title: Stepper motor control arrangement
IPC: H02P8/14
Filed: 1974-06-06
Abstract: 1427296 Control of stepping motors ITT CREED Ltd 6 June 1974 25088/74 Heading H2J A stepper motor commutation arrangement for an n-phase motor comprises an annular track of alternate transparent and opaque portions, rotating in synchronism with the motor rotor, a light source positioned to cast a shadow of the opaque portion on to a selfscanning array of photo-cells, said portions being so proportioned that either a narrow shadow or a narrow beam of illumination is cast on one or a few adjacent cells of the array, a distributer for enabling in turn an input of one of n AND gates during 1/n of a scanning cycle, a common connection to a second input of the AND gates to which a serial train or pattern of pulses representing the unilluminated cells of the array is applied, and driving means responsive to the outputs from the AND gates to change the energization pattern of the motor windings so that the rotor is kept revolving. The described embodiment uses a narrow shadow for commutating a motor, which has four windings A-D energized through respective drive amplifiers 22-25 according to the state of flip-flops (toggles) 20, 21 controlled by the outputs of four AND gates 14-17 having respective first inputs connected to the outputs 13a-13d of a distributer (counter or shift register) 13 and second inputs connected in common to the output 11b of a linear array 11 of photo-cells, which is arranged as shown in Fig. 1 with respect to a light source 10 and a disc 8 mounted on the motor shaft 7 and having alternate transparent and opaque portions 9, which are proportioned so as to shadow at least one cell but not more than three adjacent cells of the array at a time. A clock generator 12 supplies array 11 and a counter 19 feeding the distributer 13. In a typical operation, with windings C and D energized for example, the distributer 13 enables the inputs of gates 14-17 in turn during a scanning cycle, but output pulses from the array 11 only occur whilst the gate 14 is enabled, thus changing the flip-flop 20 from its B to A state to energize winding A instead of winding C and so change the energization pattern from CD to DA. Further scanning cycles respectively produce outputs from the gates 15, 16 and 17 in turn to produce energization patterns AB, BC and CD. The scanning arrangement for the photo-cells includes a twophase shift register mounted, together with the cells, on an integrated circuit chip. In order to enable any desired one of the AND gates 14-17 at the start of a scanning cycle, the distributer 13 may have four setting inputs (13f-13i) connected through respective switches (26-29) and a delay unit (30) to the generator 12, an output terminal (11c) of the array 11 providing an end-of-scan signal to an input (13j) of the distributer 13 and an appropriate one of the switches (26-29) being closed to select the gate enabled at the start of the scanning cycle, Fig. 3 (not shown).
Patent GB-575090-A (GB)
Title: Improvements in control circuits and means for effecting the discharge of bombs and like missiles from aircraft
IPC: B64D1/04
Filed: 1936-09-15
Abstract: 575,090. Dropping bombs. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Sept. 15, 1936, No. 25092. [Class 9 (ii)] Consists of electrical control means for the dropping of bombs from a series of bomb magazines one bomb being dropped, for example, from each magazine ir turn until a desired number have been dropped or all the magazines emptied, a quicker rate of dropping being thus obtainable than if one magazine at a time were emptied A rotary magazine for four bombs 1 - 4 is shown diagrammatically in Fig. 1, the internal circuits foi the bomb-release solenoids 15 being shown in more detail in Fig. 2. The magazine revolves on a central shaft 8, the bombs being steadied by wedges 6. Each solenoid is connected at one end to a contact 9 on a distributer which revolves with the magazine relatively to a fixed brush 11 ; the other end is connected to a slip-ring 10 common to all the solenoids and revolving over a second fixed brush 12. The two brushes are included in a circuit 13, 14 so that, as the magazine revolves and the contacts 9 engage the brush 11 in turn, the bombs are released in succession. A series of five such 4-bomb magazines M1-M5, is shown in Fig. 3, the fixed brushes 111-115 of which (each corresponding to the brush 11, Fig. 2) are respectively connected to studs 161 -165 of a selector switch 17, the contact arm 18 of which is driven by an electric or other motor 19. As the arm 18 rotates it closes the circuit of each magazine in turn and causes one bomb to be dropped from each. The switch may be geared to a pointer 22 whereby the number of bombs dropped is indicated. Alternatively, the pointer may be replaced by a rotary switch arm 26, Fig. 4, movable over a number of contacts 271 &c., the pointer being connected to one terminal of the battery 13. Spaced apart from the studs is a concentric ring contact 28, to which any desired stud may be connected by a plug 29. The ring is in the circuit of a solenoid 33 by which a switch-holding detent 32 is released, the switch 141 (which is closed by a press-stud 31).being the equivalent of the switch 14, Fig. 3. The plug 29' is inserted in the socket corresponaing to the number of bombs it is desired to release and, on closing the switch 141, the selector switch 17 will be driven, as described, until the pointer arm 26 reaches the contact (e.g. 276) connected by the plug 29 to the ring 28. The solenoid 33 is thus energized and the switch 141 opened, to stop the operation. Other controls may be provided to regulate the fuzing of the bombs in the magazines, the jettisoning of all the bombs, fuzed or unfuzed, in emergency, or all the bombs of an individual magazine, and for operating signal lamps-and for other subsidiary purposes.
Patent GB-818346-A (GB)
Title: A draft and buffing gear for railway vehicles
IPC: B61G9/22
Filed: 1956-08-20
Abstract: 818,346. Draft and buffing gear for railway vehicles. NATIONAL MALLEABLE & STEEL CASTINGS CO. Aug. 20, 1956 [Sept. 8, 1955], No. 25365/56. Class 103(5) A railway draft and buffing gear is assembled under compression and fitted transversely into a yoke 47 which is then raised up into a draft pocket 16 between stops 12 and 14. The gear comprises a follower 18 having U-shaped recesses 34 in each side and relieved portions 36, a follower 20 having T-shaped recesses 52 and relieved portions 58, abutments 35, 62 forming parts of the followers, links 19 provided with slots 72, 74 encircling and slidably engaging the abutments and tapered to co-operate with assembly slugs in holding rubber cushioning units 17, 21, in temporary compression, and link retaining plates 38, 60, welded across the recesses to the relieved portions 36 and 58 of the followers. Specification 723,064 is referred to.
Patent GB-217820-A (GB)
Title: Improvements in or relating to combination cutting and welding torches
IPC: F23D14/46
Filed: 1923-10-11
Abstract: 217,820. Jenkins, A. F. Oct. 11, 1923. Blowpipe burners.-An oxyacetylene and like burner comprises valved conduits for supplying combustible gas, combustion supporting gas and cutting oxygen and a manually operated member for successively opening the valves in this order. A latch enables all the valves to be held open, and the valves are closed in reverse order. In the construction shown, conduits 16, 15, 14 which supply respectively acetylene, heating oxygen and cutting oxygen are each provided with valve means comprising a valve 19 normally held against a seat 20 by a spring 23 and a valve stem 22 extending outside the valve casing 21. The acetylene conduit has also a regulatable by-pass around the valve to supply a pilot light at the nozzle. A lever 26 pivotally secured to two of the valve casings extends rearwardly over the three valve stems and by means such as a projection 27 or the stem tops being in different planes, the lever opens the valves in succession as its free end is pressed towards the burner body. The stem of the cutting oxygen valve is arranged some distance from the lever fulcrum and constitutes a yielding abutment for the lever indicating when the cutting oxygen valve begins to open. A latch 29 may be moved by a thumb. piece 28 under the edge of an aperture 30 in the handle. A cross piece 31 adapted to contact with the conduit 14 prevents the lever from rotating forwardly about the pivots.
Patent GB-782780-A (GB)
Title: Improvements in or relating to electronic switches employing junction transistors
IPC: H03K17/68
Filed: 1955-09-05
Abstract: 782,780. Transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 5, 1955 [Sept. 8, 1954], No. 25414/55. Class 40 (6). In a junction transistor switch connected in series with a line K<SP>1</SP>, K<SP>2</SP> the collector of a second transistor T<SP>2</SP> is connected to the base of the first transistor T<SP>1</SP> with the emitter held at a fixed potential while the base of transistor T2 is coupled back to the collector of transistor T<SP>1</SP> so that the differential resistance between the emitter and collector of one transistor is low and the other high and the two conditions may be reversed. With transistor T<SP>1</SP> conducting to connect the points K<SP>1</SP>, K<SP>2</SP> the base of transistor T<SP>2</SP> is sufficiently positive that the transistor is cut-off and acts as a high resistance leak from the base of transistor T<SP>1</SP> to earth. The circuit may be reversed by a pulse applied over terminal K<SP>3</SP> the transistor T<SP>2</SP> conducting to bias off transistor T<SP>1</SP>, the transistor T<SP>2</SP> acting as a low resistance shunt between the base of transistor T<SP>1</SP> and earth, thus preventing capacitive coupling between the emitter and collector of transistor T<SP>1</SP>. The state of the switch may be reversed by pulses fed in over line K<SP>1</SP> if the terminals K<SP>1</SP>, K<SP>3</SP> are connected together.
Patent GB-241715-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G1/02
Filed: 1924-10-25
Abstract: 241,715. Guillou, H. Oct. 25, 1924. Addition to 170,879, Belts and bands. - The longitudinal strips B constituting the inner adhesive layer of the belt described in the parent Specification are formed of spongy leather highly impregnated with tallow or like fatty material and preferably arranged so that the flesh side thereof forms the pulley engaging surface. For this purpose chrome tanned or other leather, after treatment under vacuum or by physico-chemical reagents such as acetic acid to distend the pores, is impregnated under pressure with tallow or the like preferably to between a minimum of 60 per cent and a maximum of 80 per cent by weight. The strips B are secured to the outer continuous band D by countersunk rivets C forming suction cups as previously but the ends of the strips, instead of being lap-jointed, are connected by pronged fasteners a arranged with the body portion between the inner and outer layers of the belt. The ends of the strips may be separated by a narrow gap d arranged obliquely or otherwise to co-operate with the longitudinal spaces between the strips for facilitating escape of air.
Patent GB-1144159-A (GB)
Title: Fuel cell electrodes
IPC: H01M4/86
Filed: 1966-06-08
Abstract: 1,144,159. Moulding electrodes. ALLMANNA SVENSKA ELEKTRISKA A.B. 8 June, 1966 [9 June, 1965], No. 25516/66. Heading B5A. [Also in Division H1] A porous fuel cell electrode of gas-permeable compressed powder material has a current terminal welded to a connection part which is part of the whole electrode but wherein the powder is more compressed than it is in the main active part. The electrode may be disc-shaped with projecting ears forming the connection parts. It may have a large-pored layer on that side of the main active part on the gas side and a fine-pored layer on the electrolyte side and on both sides of the connection parts. Such electrodes are preferably of uniform thickness and may be formed in the press shown in Fig. 3, wherein punch 12 operates on the main active part and punches 16 and 17 on the connection parts. In the filling position punch 12 is 2 mm. higher than punches 16 and 17. In the example 0À5 mm. of fine particle carbonyl nickel powder is placed over punches 16 and 17. The space over all three punches is then filled with a coarse particle nickel boride-carbonyl nickel powder (6 mm. over punch 12 and 7À5 mm. over punches 16 and 17) with a final 1 mm. layer of the fine powder. Pressure (e.g. 25 tons) is then applied by punch 25 so that the upper surfaces of the three punches 12, 16 and 17 are at the same level. The resulting electrode is sintered in hydrogen for 30 mins. at 600‹ C. Other powder materials and configurations for the electrodes are mentioned.