baber/WOPTO huggingface dataset:
Patent GB-1407409-A (GB)
Title: Detection of blemishes in a surface
IPC: G01N21/89
Filed: 1971-10-27
Abstract: 1407409 Scanning a surface FERRANTI Ltd 26 Oct 1972 [27 Oct 1971] 49885/71 Addition to 1376135 Heading G1A In a modification of the surface scanning station disclosed in Specification 1376135 the light spot Fig.3a (not shown) scanning the moving surface is elongated to a light bar Fig. 3c (not shown) by utilising an optical arrangement having different focal lengths in two orthogonal planes. The optical system Fig. 4 may comprise two positive spherical lenses 13 and 14 and a negative cylindrical lens 15. The negative cylindrical lens 15 alters (lengthens) the focal length of the system in one plane (parallel to the drawing) so that radiation from the laser 1 travelling in one plane (perpendicular to the drawing) is brought to focus on the surface 6 whilst radiation travelling in an orthogonal plane is brought to focus at 19 behind the surface thereby forming a light bar 20 on the surface, thus enabling the scanning system to operate more effectively with surfaces travelling at high speeds. An alternative optical system Fig. 4c (not shown) employing a positive cylindrical lens instead of the negative lens 15 is disclosed.
Patent GB-1085949-A (GB)
Title: Improvements in and relating to films of thermoplastic material
Inventor: STEPHENSON ARTHUR RIPON
IPC: B26F1/26
Filed: 1963-12-18
Abstract: 1,085,949. Perforated films. T. J. SMITH & NEPHEW Ltd. Jan. 22, 1965 [Dec. 18, 1963], No. 49896/63. Heading B5B. In a method for making a film of thermoplastic material having a desired pattern of perforations therein, molten thermoplastic material is extruded from a slit die on to an indented or perforated supporting surface moving with, and at the same speed as, the extruded material, and, when the material has changed to a semi-molten condition and whilst continuing to move, exposing the layer of material to the action of a flame or a jet of heated air or other gas, which has a temperature at least equal to the m.p. of the thermoplastic material, such that the portions of the semi-molten layer over perforations or indentations on the supporting surface are re-melted, while the portions in contact with the supporting surface remain unmelted, and cooling the thus-perforated layer to form a perforated film. Before cooling, the film may be biaxially stretched. The supporting surface may be heated above the temperature of the surrounding atmosphere, and may comprise a hollow cylinder or an endless band. In one embodiment, (Fig. 1) (not shown) the thermoplastic material is extruded directly on to a moving perforated cylinder (5) on which it is exposed to flame (10), the tips of which contact the material. In another embodiment (Fig. 2), the molten flat layer is delivered on to an endless band 16 operating between two heated driven rollers 17, 18, and passes over heated bridging member 19 before contacting perforated roller 5. An upper heated driven roller 20 may be provided to reduce the thickness of the layer of almost molten material.
Patent GB-1434800-A (GB)
Title: Electric transformers or chokes
IPC: H01F27/26
Filed: 1973-10-26
Abstract: 1434800 Transformers and inductors FERBANTI Ltd 24 Oct 1974 [26 Oct 1973] 50089/73 Heading HIT Preformed core sections 11, 11<SP>1</SP> and 12, 12<SP>1</SP> of a transformer or inductor have opposed mating surfaces clamped together by spring members 16 formed from a strip of resilient material (Fig. 3, not shown). The assembly of core and winding 10 is positioned between two locating members (13) which are secured together by rods 14, 14<SP>1</SP>, with threaded ends, and nuts (15). One of the spring members may be replaced by a rigid member. The mating surfaces of the preformed core sections may be shaped to simplify location. Mounting may be by means of tapped pillars attached to one of the locating members 13 and a terminal board may be carried by a locating member 13. The transformer or inductor may be encapsulated.
Patent GB-1182018-A (GB)
Title: Improvements in and relating to Hydraulic Jacks for Mining and Building machinery
Inventor: WIPPIG WERNER
IPC: E21D19/04
Filed: 1967-11-06
Abstract: 1,182,018. Hydraulic jacks. BADE & CO. G.m.b.H. 6 Nov., 1967, No. 50364/67. Heading B8J. [Also in Division E1] An hydraulic jack 1 for a tunnelling shield is disposed in a chamber bounded by plates 11, 12 near the outer shell 10 of the shield and comprises a piston rod 2 with an outer shell 4 bounding a hollow interior. A rocker rod 5 is disposed in the rod 2 and has an arcuate end resting in a correspondingly curved recess in the piston which forms a bearing allowing the rod 5 to rock. An eccentric part spherical cap 6 is mounted on the other end of the rod 5 and transmits force via a saddle 8 to the end face of of a lining segment 9. In a modification, Fig. 2 (not shown), a ball bearing (17) and a pressure distributing plate (18) are interposed between the saddle 8 and the lining segment 9, the transverse secondary force being transmitted to the shield outer shell 10 via a spherical thrust cap (16).
Patent GB-1476080-A (GB)
Title: Chemical cells
IPC: H01M2/04
Filed: 1975-12-09
Abstract: 1476080 Terminal arrangement for cell F K NABIULLIN 9 Dec 1975 [24 Dec 1974 (2)] 50501/75 Heading H1B A cell comprises a casing 1 containing a positive 3 and negative 4 electrode arranged coaxially and separated by an ion-conducting membrane 5, a lead-out terminal 6 for the negative electrode, and a metallic closure 7 in contact with terminal 6 and having at least one hole 8 covered by a plastics gasket 9, terminal 6 extending through an annular sealing coupling portion 10 of the gasket and being grooved (at 11) for engagement by the coupling portion to couple the gasket to the terminal and hold the latter in close contact with the metal closure. In making the cell, the positive and negative electrodes are arranged coaxially in the casing and then separated with the ion-conducting diaphragm, terminal 6 is placed in the casing, the closure and gasket are placed on terminal 6 and pressed into the cell, sealing compound having been applied to portion 10, the edge of casing 1 is rolled down to hold gasket 9 as shown, and the gasket is moved inwardly over the terminal to engage portion 10 with groove 11. Inward movement of the gasket may be achieved by supplying fluid under pressure through holes 8; terminal 6 may have a groove at each end, making it immaterial which way round it is inserted; alternative terminals 6 have two grooves (Fig. 2, not shown) or a discontinuous groove (Fig. 3, not shown). Holes 8 allow release of gas under pressure from within the cell.
Patent GB-1470446-A (GB)
Title: Vacuum packaging apparatus and method and resulting package
IPC: B65B31/02
Filed: 1974-11-21
Abstract: 1470446 Evacuating and closing packages W R GRACE & CO 21 Nov 1974 [10 Dec 1973] 50519/74 Heading B8C A method of evacuating and closing filled bags comprises placing a bag 2 in communication with a vacuum reservoir 11, placing the communicating bag and reservoir in a vacuum chamber 4, evacuating the chamber 4, the reservoir 11 and the bag 2, sealing the evacuated reservoir 11 while leaving it in communication with the evacuated bag 2, removing the sealed reservoir 11 and communicating bag 2 from the chamber 4, and thereafter closing the bag 2. A plurality of reservoirs 11 and associated nozzles 33, through which bags are communicated with respective reservoirs, are carried on a conveyer belt 3 for movement into and out of the vacuum chamber 4 which can be raised automatically. Each reservoir 11 is evacuated through an associated check-valve 20 either by communication with a vacuum line 23, as shown, or by communication with the interior of the vacuum chamber 4. A sensor (32), Fig. 1 (not shown), which is located immediately upstream of the vacuum chamber 4 and capable of detecting the presence of a reservoir 11, acts to apply vacuum to the line 23. A bag is clamped to a nozzle 33 between a flared member (16), Fig. 5 (not shown) and a barrel 14 which may be locked in a clamping position by a locking handle (17), Fig. 5 (not shown).
Patent GB-1216313-A (GB)
Title: Balanced bi-directional no-back drive mechanism
IPC: F16B1/04
Filed: 1967-12-29
Abstract: 1,216,313. Non-reacting couplings. FORMSPRAG CO. 29 Dec., 1967 [29 Dec., 1966], No. 60535/67. Heading F2E. A device for limiting torque feedback from output to input comprises two pairs of input elements 13, 14 coupled via brake shoes 20, 21 to a pair of output elements 29, 30, the perpendicular distance of each output element 29, 30 from a line passing midway between each pair of input elements being greater than the perpendicular distance of each input element 13, 14 from said line. The coupling is thus balanced and the reactive couple effective on the driver is less than that applied to the shoes from the driven side. As shown in Fig. 2, the input member 12 has pairs of pins 13, 14 engaging flats on brake shoes 21, 22 so as to transmit rotary motion to pintles 29, 30, engaging seats 25 and holes 28 in the output member 27. Torque applied to input member 12 tends to compress springs and thus prevent engagement of shoes 21, 22 on the fixed brake drum 18. Reverse torque due to an aiding load on output member 27 however results in the shoes 21, 22 engaging the drum 18. In Fig. 5, the pairs of pins 13<SP>1</SP>, 14<SP>1</SP> are spaced from the shoes 20<SP>1</SP>, 21<SP>1</SP> by leaf springs 50, engaging recesses in the input member. The pins 13, 14 may carry rollers (Fig. 6, not shown) or needle bearings (Fig. 7, not shown). The input and output members 12, 27 may be supported on ball races (Fig. 4, not shown). In Fig. 8, the pins 13<SP>1</SP>, 14<SP>1</SP> carry tapered rollers 59.
Patent GB-1287619-A (GB)
Title: Hoist safety device
Inventor: SEELEY DOUGLAS ERIC ROY
IPC: B66B13/24
Filed: 1969-10-15
Abstract: 1287619 Lift platform safety devices; builders hoists J LONGLEY & CO Ltd 1 June 1970 [15 Oct 1969] 50653/69 Headings B8H and B8L A safety device for a hoist comprises a wire 12 tensionable due to opening of any one of a plurality of hoist level gates 2, 3, 4, to prevent or stop operation of the hoist platform 5. The wire 12 is connected to an overrun control cable 10 associated with a platform overrun switch 9 which cable 10 simultaneously controls the hoist winch motor drive and a motor brake in response to tension therein. Adjacent each gate, the wire 12 is tensioned by drawing it by a side wire 16 around rollers on a fixed bracket 15, the side wire being tensioned through a pivotal beam 11 operated by movement of the hoist gate. Once the wire 12 is tensioned by one gate, the wire cannot be further tensioned and therefore the opening of other gates is prevented. The wire 12 may also be tensioned by a manual lever 17 at the base of the hoist to prevent operation thereof.
Patent GB-1476383-A (GB)
Title: Esters and liquid motor fuel compositions containing them
IPC: C10L1/18
Filed: 1974-04-26
Abstract: 1476383 Esters of dimer and trimer acids ROHM & HAAS CO 26 April 1974 [2 May 1973] 50806/76 Divided out of 1476381 Heading C2C [Also in Division C5] An ester or mixture of esters of a dimer or trimer or mixture of dimers and trimers of an unsaturated aliphatic monocarboxylic acid of 16-18 C atoms with (a) an aliphatic alcohol of 1-24 C atoms and (b) an alkoxylated alkyl phenol is claimed. The ester or mixture of esters may have the formula where Z 1  is the hydrocarbon residue of the dimer or trimer and, n has a value in the case of a single compound or average value in the case of a mixture of compounds in the range 1-20, p and q are each 1 or 2, the sum of p and q being 2 when Z 1  is the residue of a dimer acid and 3 when Z 1  is the residue of a trimer acid, R 7  is C 4 -C 12  alkyl, R 8  is H or C 4 -C 12  alkyl and R 9  is C 1 -C 24  alkyl. The ester or mixture of esters may be prepared by reacting a mixture of an aliphatic alcohol and an alkoxylated alkyl phenol with the dimer and/or trimer of the unsaturated aliphatic monocarboxylic acid. The ester or mixture thereof may be used in liquid hydrocarbon motor fuels.
Patent GB-1396139-A (GB)
Title: Bleaching of waste paper pulp
IPC: D21C9/14
Filed: 1972-11-03
Abstract: 1396139 Bleaching pulp HOOKER CHEMICAL CORP 3 Nov 1972 [10 Nov 1972] 50859/72 Heading D1P Waste paper pulp is bleached by contact with chlorine dioxide used as the sole bleaching agent in a single bleaching step. The pulp may be at 59 to 180‹F and pH 2 to 5 and contacted with up to 1% wt chlorine dioxide. The pulp may be neutralised by addition of acid or alkali prior to contact with the chlorine dioxide. The pulp may contain up to 7% wt groundwood.
Patent GB-1209153-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/535
Filed: 1967-11-09
Abstract: 1,209,153. Mowing machine. TEXAS INDUSTRIES Inc. 9 Nov., 1967 [1 Dec., 1966], No. 51043/67. Heading A1F. A mowing machine whose longitudinal axis is perpendicular to the direction of travel A and which moves over the ground supported at one end from a tractor by rods 13 and at the other end by an adjustable runner 15 pivotally mounted on the leading beam 1, is characterized in that the knife edges of the pair of rotary cutter blades 18 that are positioned at the extremities of support 6 move in very close proximity to the side screens 4 so that the winding of long grass around the said support is reduced to a minimum. The shape of the cutter blades and their symmetrical arrangement on the support 6 is shown in Fig. 3 together with the pivoting arrangement 18A that enables the blades to partially rotate against the cutting rotation B should the said blades encounter any hard objects. A screening hood 5, protected by a guard 20, is located between beam 1 and U-beam 3.
Patent GB-1521717-A (GB)
Title: Fabric draw-off mechanism for knitting machines
IPC: D04B15/88
Filed: 1975-12-16
Abstract: 1521717 Knitting machines SULZER MORAT GmbH 16 Dec 1975 [27 Dec 1974] 51409/75 Heading D1C Tubular fabric 1 which is wound onto roller 5 is taken up on rollers 2, 3 and 4 having, preferably at both their ends, pulleys or chain wheels 6, 7, 8 round which pass a tightening band or bands (belt or chain). Each band also passes round a driven wheel 14 and a tightening element comprising a pulley or chain wheel 10 carried on a lever 12 pre stressed by a spring 11. The ends of rollers 3 and 4 are mounted to be movable perpendicular to their axes in the plane containing the axes. Take-up roller 2 is preferably rigidly mounted and may be driven, replacing driving wheel 14. There may be two or more than three take-up rollers.
Patent GB-1273591-A (GB)
Title: Method of increasing the mechanical strength of glass bodies
IPC: C03C21/00
Filed: 1969-10-22
Abstract: 1,273,591. Strengthening glass. BROCKWAY GLASS CO. Inc. 22 Oct., 1969 [1 Nov., 1968], No. 51789/69. Heading C1M. A soda-lime glass body has applied thereto an aqueous solution of K 3 PO 4 , the body being at an elevated temperature sufficient to rapidly evaporate the water, and maintaining the glass at an elevated temperature so as to exchange Na<SP>+</SP> ions in the glass for K<SP>+</SP> ions and produce a compressively stressed surface layer. Preferably the solution contains at least 10% by weight of K 3 PO 4 . The glass body is preferably maintained at a temperature between 300‹ F. and the annealing point for at least 5 minutes. The treatment may be carried out as the newly formed glass article passes through an annealing lehr. Specification 1,181,581 is referred to.
Patent GB-1314887-A (GB)
Title: Digital servo systems
IPC: G05B19/40
Filed: 1970-10-30
Abstract: 1314887 Control systems CHANDLER EVANS Inc 30 Oct 1970 [10 Nov 1969] 51798/70 Heading G4H In a proportional open loop servo system of the type in which a count, representing a contol variable error, e.g. engine speed and hence representing the required repositioning of a member, e.g. a fluid metering valve, is entered into a counter 34 (Fig. 2) and periodically compared with a count of pulses applied to the member and to counter 50, digital integral action is obtained by also feeding to the member pulses, the frequency of which depends on the count in the counter 50. As described input pulses the width of which represents the control variable error enable gate 30 so that counter 34 is incremented by pulses from source 32, the counter 34 having been preset by the complement of the count in counter 50. When the counter 34 is not full, control pulses from source 58 drive the motor 16 in a direction determined by the sign of the error, counter 50 being accordingly incremented or decremented. The counter outputs control gates 70-76 in integral logic circuit 18 so that pulses from the outputs of frequency divider 78 are interleaved with control pulses to drive the motor 16 and so reposition the valve, these pulses not being accumulated in counter 50.
Patent GB-1483902-A (GB)
Title: Paper sizing
IPC: D21H17/62
Filed: 1975-11-28
Abstract: 1483902 Paper sizing compositions TENNECO CHEMICALS Inc 28 Nov 1975 [29 Nov 1974] 51845/74 Heading C3R A paper sizing composition comprises a stable aqueous dispersion or solution of the product obtained by fortifying a resin by reaction with an alpha, beta-unsaturated carboxylic acid or anhydride and then disproportionating the fortified resin substantially to eliminate abietic acid. The resin may have been reacted with formaldehyde or paraformaldehyde in the presence of an acid catalyst, prior to fortification. The disproportionated fortified resin may be partially saponified with a base. In examples tall oil resin is reacted with paraformaldehyde in the presence of para-toluene sulphonic acid; fortified by reaction with maleic anhydride and then disproportionated by reaction with iron resinate and iodine; some of the products are partially saponified with caustic potash and caustic soda and dispersed in water and others dispersed in water without saponification; stabilizers are provided by adding caustic potash, casein and borax and by adding casein and ammonia.
Patent GB-1141916-A (GB)
Title: An improvement in or relating to fire surrounds
Inventor: TAYLOR RONALD
IPC: F24B1/198
Filed: 1966-11-21
Abstract: 1,141,916. Fireplace surrounds. MODERN METHODS & MATERIALS Ltd. 21 Nov., 1966, No. 51950/66. Heading F4W. A fire surround comprises a plinth part 10, a mantelpiece 14 connected to said plinth part 10 by two members 22 to form a central space 24, and a pair of poles 42 to hold the structure rigid. Each pole 42 includes a rod 44 with a sleeve 46 to act as a spacer element between the parts 10 and 14 and each member 22 consists of four edge pieces 28 fastened to a thin board 30 and is held against the parts 10 and 14 by a rod 36 with a wing nut 40.
Patent GB-525974-A (GB)
IPC: G03C7/14
Abstract: 525,974. Colour photography. LASSUS ST. GENIES, A. H. J. DE. March 3, 1939, No. 7104. Convention date, March 18, 1938. [Class 98 (ii)] In the projection printing of films bearing colour separation records on to films having several sensitive layers, the copying light first impinges on one side of the copy film and this is then moved and the light reflected so as to impinge on the other side. As shown, the film F 1  is carried in a pivoted gate C which is movable into a position C<SP>1</SP> and thereby brings the mirror M attached thereto into a position M<SP>1</SP> such that it reflects the light on to the film F 1 . In the case of lenticular film an optical system of small relative aperture is used and a supplementary lens system V conpensating for the different refrangibility of light of different wavelengths may be inserted into the objective O. The two positions of the gate C relative to the objective O may also be chosen to compensate for the different refrangibility. In a modification a totally reflecting prism is used, and the movement of the gate effects a replacement of a glass compensating block by the prism. If the original film is a lenticular film the copying arrangements described in Specifications 470,801, 482,690 and 489,823 may be employed.
Patent GB-1483499-A (GB)
Title: Photoconductive imaging device
IPC: H01L31/08
Filed: 1974-12-10
Abstract: 1483499 Electro-photographic members RCA CORP 10 Dec 1974 [10 Dec 1973] 53447/74 Heading G2C [ Also in Division H1] An electro-photographic plate comprises a layer 12 of a photo-conductor such as Si, GaAs, GaP, CdSe or CdTe having thereon a layer 20 of a semiinsulator material which contains mobile deeplying charge carriers and which forms a blocking contact with the photo-conductive layer 12. The layer 20 is 100-1000 Š thick, contains 10<SP>14</SP>-10<SP>19</SP> cm<SP>-3</SP> of the deep-lying carriers the mobility of which is 10<SP>-6</SP>-10<SP>-12</SP> cm<SP>2</SP>/v.sec., has a sheet resistivity of 10<SP>12</SP>-10<SP>18</SP> ohms/squire and is such that a pattern of charges accumulated at the interface of the layer 20 and the layer 12 in accordance with an incident light image is retained for the order of 0À1 seconds. Charges introduced into the layer 20 or from an applied electrode migrate across its thickness to the interface where they are discharged imagewise by light-generated carriers on imagewise exposure in the body 12. A conductive layer 18, e.g. of transparent metal or tin oxide, may conduct away light-generated carriers of the opposite sign. Suitable materials for the layer 20 are cermets (glass or ceramic containing dispersed metal particles) formed by co-deposition of silicon dioxide or aluminium oxide and a metal such as Au, Ag, Cu, W, Al, &c. or by firing an applied mixture of metal particles and glass frit. Alternative materials are conductive glasses such as V 2 O 5  - P 2 O 5  or V 2 O 5  - K 2 PO 3  and ionically-conducting solids having deeplying carriers near the valence band (for use with an n-type semi-conductor) or near the conduction band (for use with a p-type semi-conductor).
Patent GB-1234949-A (GB)
Title: A device for preventing following traffic from running under a lorry or other vehicle
IPC: B60R19/56
Filed: 1968-11-13
Abstract: 1,234,949. Collision guard. R. HAGEN, [trading as KAUTEX-WERK REINOLD HAGEN]. 13 Nov., 1968 [16 Nov., 1967; 6 June, 1968], No. 53916/68. Heading B7J. A device 10 for a lorry or other vehicle, comprises a substantially closed hollow member 11 of thermoplastic plastics material having a first wall portion 13 defining a mounting for attachment to the rear of the vehicle and a second wall portion 12 disposed substantially at right angles thereto so that in use it projects below a platform of the vehicle at least partly to cover the rear of the space below the platform and between the lateral boundaries of the vehicle, thereby forming a barrier to prevent following traffic running under the rear of the vehicle. Viewed laterally in use, the cross-section of the member may be triangular, or an inverted L with hollow limbs as shown. Strengthening ribs orthogonal to the first and second wall portions may be provided externally, 19, or internally of the member, e.g. at its lateral ends, and adjacent ribs may be joined by a further orthogonal wall portion (23), Figs. 3 and 5 (not shown). Parts 13a, 13b, Fig. 4, of opposite wall portion 3 may be pressed and welded together to give reinforcement zones, e.g. for holes 15. Reinforcing inserts 25, e.g. of steel or elastic textile material, in band or wire form are recessed in the wall 11 and have surface irregularities 27 in the end regions 26 for positive connection with the thermoplastic material, the position of the inserts being indicated by external marks. The member may also be reinforced by mineral fibre and filled with foamed plastics material. Holes 16, 17 are provided for access e.g. to rear lights and trailer couplings. The device may be mounted on the vehicle by interposition of springs acting longitudinally of the vehicle.
Patent GB-1236627-A (GB)
Title: Combined sound recording & visual counterpart with numerical index
Inventor: KITCHEN JOHN
IPC: G11B23/44
Filed: 1968-11-14
Abstract: 1,236,627. Sound recording. J. KITCHEN. 7 Nov., 1969 [14 Nov., 1968], No. 53961/68. Heading G5R. A sound recording on tape or disc is punctuated by numbers to enable a listener to correlate the sound with a corresponding numbered passage or illustration in a book.