baber/WOPTO huggingface dataset:
Patent GB-851479-A (GB)
Title: Improvements in or relating to the coating of cloth, plastic or other pliable material for the protection of personnel from radiation
Inventor: TREUHERZ WERNER
IPC: A41D13/04
Filed: 1956-09-22
Abstract: 851,479. Radiation-absorbing materials. EVERGLADES Ltd. Nov. 6, 1957 [Sept. 22, 1956], No. 29036/56. Drawings to Specification. Class 39(4). [Also in Groups VII and VIII] A pliable screen, shield, or article of clothing for protection against X-rays, gamma rays, or like radiation comprises a composite sheet material having an inner layer containing a synthetic polymer and powdered lead or tungsten, or compounds thereof, and outer layers at least one of which contains a synthetic polymer free from radiation-screening material. In forming the sheet, a fabric, e.g. cotton or rayon, may be coated with a mixture of polyvinyl chloride and dioctyl phthalate ; a mixture of polyvinyl chloride, dioctyl phthalate, and lead powder is then applied in several coats, followed by two coats of a mixture of polyvinyl chloride, dioctyl phthalate, and a pigment. The colour of the pigment may indicate the degree of protection afforded by the sheet. The polymer mixtures also contain a small amount of a stabilizer, e.g. lead carbonate, lead sturate, or dibutyl tin dilaurate. Each coating may be heated to 110‹C. by means of hot air or infra-red radiation to semi-gel the coating ; the final sheet may be heated to about 180‹C. In place of cotton or rayon cloth, glass fibre, nylon, or "Terylene" (Registered Trade Mark) may be used ; these fibres should be treated first with a dispersion of plasticised polyvinyl chloride and epoxy-type resin in an organic medium to prevent peeling. The sheet material may be used to make aprons (see Group VII), helmets, or gloves.
Patent GB-271338-A (GB)
Title: An improved ball or roller clutch
IPC: F16D41/07
Filed: 1926-02-17
Abstract: 271,338. Miller, W., and Lamb, H. T. Feb. 17, 1926. Ratchet gearing; links.-In friction ratchet gearing, one member carries one or more groups of contacting balls or rollers, each comprising an even number thereof, arranged in a line substantially transverse to the motion of the member and adapted to coact with a cam or wedge surface. In a simple adaptation of the invention for coupling two rectilinearly - moving members always at the same point when the roller-carrying member moves in one direction, and releasing them when it moves in the other direction, the wedge surface is formed on the driven member. This form is applicable to lost-motion connections, such as are provided between the rod and plunger of a fuel pump, between the tappets and valves of Diesel engines &c., and in electric trip switches. For continuous ratchet action, the wedge surface is on a separate member, as shown in Fig. 2. Rollers 4, 3, carried in a slot 1<a> of the driving-member 1, contact respectively with a plane surface 2<b> of the driven member 2 and with the inclined surface 5<a> of a wedge 5, which is pressed by a spring 6, bearing on a lug 1<d> of the member 1, and is forced against a parallel surface 2<a> of the member 2 by rotation of the rollers on movement of the driving-member in the direction of the arrow. In a rotary ratchet, gear, the surfaces 2<a>, 2<b> are concentric, and the slot 1<a> is radial. It may, however, be slightly inclined backwards or be replaced by two axially-directed intersecting holes fitting the rollers, these modifications being applicable also to the rectilinearly-moving coupling-arrangement. A reversible ratchet gear, adapted for use in the variable-speed gear described in Specification 271,147, [Class 80 (ii), Gearing, Variable-speed, &c.) comprises two driving-members 1 rigid with a common oscillating member 1<h>, Figs. 6 and 7, the wedges 5 of the two sets being oppositely disposed. Rotation of loose rings 8, 9 causes one or other of sets of lugs 8<a>, 9<a> thereto to press one set of wedges 5 out of action against their springs 6. The rings 8, 9 are simultaneously rotated by an inclined tongue 10 on a grooved segment 11, which is moved axially on pins 11<a>, 11<b> by a crank 13 and shoe 12. In the mid-position, both ratchets are out of action. In a modification, the controlling-ring lugs act between the ends of oppositely-inclined wedges on a single ratchet gear. In another reversible form, shown developed in Fig. 10, the wedges 5<d> have each oppositely-inclined surfaces (not shown) at each end, and the springs 6, which act on blocks 16, are compressed between one of the walls 15<a>, 15<b> of pockets in the lugs 15 of the controlling- ring 8 and one or other slotted end of the wedges 5<d> according to the displacement of the ring 8. In a further modification, oppositely-acting wedges 20, 21, Figs. 11 and 13, separated by lugs 1<g> and acted on by compression springs 23 or torsion springs 22, are alternatively allowed to become operative by axial movement of cams 17 on pins 18, carried by a sliding collar (not shown) .
Patent GB-484085-A (GB)
Title: Improvements in couplings for vehicles, machine parts and for other purposes
IPC: B60D1/02
Filed: 1936-10-27
Abstract: 484,085. Overload release couplings. SLATTER, F. Oct. 27, 1936, No. 29124. [Class 103 (v)] In couplings for agricultural machines of the kind including a coupling part mounted on one of the members to be coupled, for engagement with a coupling hook on the other member, and a strong spring acting on the coupling part to maintain the coupling until a predetermined tension is reached and then automatically to release it, the coupling part comprises a pivoted lever having a portion normally projecting transversely to the direction of pull so as to form an abutment for the coupling hook, the abutment portion being capable of movement in the direction of pull against a strong spring and in the opposite direction against a relatively weak spring. As shown, a block 5 is secured, to the forks 4 of one of the members to be coupled, and is recessed to receive one end of a strong adjustable spring 9 which presses a block 14, slidable on the forks 4, against stops 18. The bolt 19, which secures the stops to the forks, also provides a pivot for the double-armed lever 20, the lower arm 21 of which engages the coupling eye 13 of the other member 3 to be coupled. The member 3 is located between the lower edges of the forks and an extension 12 of a member 10 bolted to the block 5. The upper arm 22 of the lever 20 is connected to the block 14 by a light spring 24 and is provided with a handle 29 by which the lever can be rotated. To limit anticlockwise movement of the lever, e.g. when reversing, a pin 31 is mounted in the forks.
Patent GB-423727-A (GB)
Title: Improvements in or relating to the transferring of pictures and the like
IPC: B44C1/175
Filed: 1934-10-11
Abstract: 423,727. Transferring designs. TUCK & SONS, Ltd., R., Moorfields, London, and WATKINSON, E. S. 22, Woodstock Gardens, Goodmayes, Essex. Oct. 11, 1934, No. 29126. [Class 100 (ii)] Pictures, letterpress, photographic films, or other matter are transferred from one surface or carrier to another by the use of a transfer paper of the kind comprising a paper sheet coated with dextrine or other adhesive, and then with a transparent film of a cellulose derivative. A sheet of such transfer paper is placed upon the picture &c., which has been treated with methylated spirit or other substance which will soften the cellulose coating of the transfer paper. The paper or other original carrier of the picture is then treated with soda, potash, acid, or other material which will effect its destruction and is then removed either wholly or in such a manner to leave a thin layer of the carrier. The remaining soda &c., is neutralized by a suitable agent such as nitric acid and alum, and the picture applied to the new carrier. The paper of the transfer is then removed. When the whole of the original carrier is removed, the transfer bearing the picture is softened with methylated spirit prior to its application to the new carrier. If a thin layer of the original carrier remains it is coated with adhesive and applied to the new carrier.
Patent GB-1283841-A (GB)
Title: An internal shoe drum brake having a brake-shoe adjusting device
IPC: F16D65/56
Filed: 1970-06-16
Abstract: 1283841 Adjusters for internal shoe drum brakes BENDIX CORP 16 June 1970 [3 July 1969] 29147/70 Heading F2E An internal shoe drum brake includes an adjusting device 26 comprising two threadably interengaged elements 30, 32 operatively interposed between adjacent ends of webs 36, 38 of a pair of brake shoes 12, 14, the element 32 being rotatable either manually or automatically to increase the length of the device 26, and a coil spring 28 being stretched between the brake shoe ends to urge them into engagement with the device 26, and abutment portions 80, 82 carried by the respective elements 30, 32 and engaged by the end convolutions of the spring 28 for limiting the extension of the spring 28 and thereby the separation of said brake shoe ends. As shown, hooks 76, 78 at either end of the spring 28 are received in the webs 36, 38; web 36 is received in a slot 34 of the element 30 and web 38 rides on a bearing surface 42 in element 32 to allow rotation of element 32. Manual adjustment of the device 26 is by means of a serrated wheel 44, and automatic adjustment is by means of a known arrangement comprising a lever 46 pivotally connected to a pin 48 on the web 38 and urged in a counterclockwise direction by a torsion spring 50, a cable 58 being connected between the lever 46 and an anchor pin 18 for the shoes 12, 14. Springs 22 hold the brake shoes 12, 14 in engagement with the anchor pin 18 and a wheel cylinder 20 moves the brake shoes 12, 14 through links 24.
Patent GB-493981-A (GB)
Title: Improvements in or relating to automatic air control means for combustion apparatus
IPC: F23L1/02
Filed: 1937-10-26
Abstract: 493,981. Centrifugal fans. DAY, C. (Steel Products Engineering Co.) Oct. 26, 1937 No. 29161. [Class 110 (i)] [Also in Group XII] In apparatus for regulating the air supply to a furnace grate of the kind wherein a damper for regulating the air inlet of a forced draught-fan is operated automatically by movement of a member caused by displacement of a liquid subject to air pressure in the conduit leading from the fan to the space beneath the furnace grate, the damper is in the form of a flat rotary disc mounted on a pivot at rightangles to the disc and connected to the said member and is provided with air inlet openings and sector shaped arms which co-operate with openings in a fixed plate. As shown in Fig. 2, the casing 21 of the fan 24 has an air inlet 23 to which is secured a flange 29 with radial arms 35 and a central bearing 34 for a spindle 33 on which the rotary damper 30 is mounted. The damper is provided with air inlet openings 36 spaced apart by radial arms 37 which serve to open and close apertures formed between radial plates 40 secured to the flange 29. To the damper 30 is secured an annular chamber 42, Figs. 2 and 3, containing liquid 43 and provided with a partition 44 to form compartments 45, 46 above the liquid level. The compartment 45 is in communication by means of a flexible pipe 48 with the fan discharge conduit and variation of pressure therein causes displacement of the liquid and also of the annular chamber 42 and damper 30 connected therewith. The damper carries a counterweight which always tends to restore it to its closed position. The end of the pipe 48 connected to the fan discharge conduit projects transversely into the conduit and has an air inlet opening disposed at right-angles to the air flow. A modification is' shown in Fig. 8 in which the damper 130 on the fan inlet is actuated through a lever 152 by a float 139 arranged in one compartment 143 of a chamber 140 containing liquid, the other compartment 142 of which is in communication through an opening 144 with the fan discharge conduit 118.
Patent GB-1063286-A (GB)
Title: Composite filaments
IPC: D01D5/32
Filed: 1964-07-15
Abstract: 1,063,286. Composite filaments. E.I. DU PONT DE NEMOURS & CO. July 15, 1964 [July 15, 1963], No. 29161/64. Heading B5B. A splittable composite filament is made by (1) extruding at least one polyamide component, having a relative viscosity (RV) measured after extrusion, of 30-60, and at least one polyester component having RV, after extrusion, of 15- 24, from a spinneret orifice in side-by-side relationship to form a composite filament, the ratio of the polyamide RV to the polyester RV being 1À5/1 to 2À5/1; (2) attenuating the composite filament by pulling it away from the orifice at a speed at least 40 times the extrusion speed; (3) quenching the filament; (4) drawing the filament 2-8 times its original length. A polymeric antistatic agent e.g. a polyalkylene ether, may be dispersed as a separate phase in at least one of the components, in which case, the RV of the polyester component is 22-30. The composite filament may be drawn at a temperature above 100‹ C. and then heated in relaxed state at 80‹ C. or above for a time sufficient to produce a retraction of 6-11%. The filament may also be heated before drawing to a temperature of at least 80‹ C. The filament is substantially crimp-free, and its components adhere together until woven into a fabric but readily separate during fabric finishing operations. RV of the components after extrusion are determined by isolating the components from a spun yarn and measuring the viscosities of solutions thereof under specified conditions. In an example, melts of polyethylene terephthalate and polyhexamethylene adipamide are extruded simultaneously through Y-shaped orifices in the spinning head disclosed in Specification 1,016,861. The resulting trilobal filaments are air-quenched, wound at 125 times the extrusion speed, and drawn using a draw pin at 100‹ C.
Patent GB-210160-A (GB)
Title: Improvements in holders for desk calendars, diaries, note-books and the like
IPC: B42D9/00
Filed: 1922-10-26
Abstract: 210,160. Power. R. F., and Shaw & Co., Ltd., A. W. Oct. 26, 1922. Book &c. rests and holders.-A holder for calendars, diaries, or the like comprises a support for each cover and means for embracing the back or binding of the book. The device may be formed of sheet metal in one piece or in two pieces hinged together as shown in Fig. 1 or one part may be formed of bent wire hinged or otherwise attached to a metal or wood base. The covers are supported on the members 1, 3 and the back is held in the folded portion 2. The ends of the cover-supports may be turned over to forms holders 6, 7 for the ends of the covers.
Patent GB-1309355-A (GB)
Title: Tray
IPC: A47G23/06
Filed: 1971-06-22
Abstract: 1309355 Trays PLASTICS Inc 22 June 1971 [12 Aug 1970] 29205/71 Heading A4A [Also in Division B8] A tray comprising a trapezoidally shaped bottom 12, a peripheral rim 21, 23, 24, 26, and depending flanges 14, 16, 18, may be stacked with a similar tray in a partially overlapping condition (as shown) by fitting the flange 14 into notches 30, 32 formed in the rim portions 21, 23. The trays may be stacked in a fully over-lying relationship when orientated at 180 degrees with respect to each other, recesses (20), 22 in the flanges 16, 18 of the upper tray accomodating the rim portions 21, 23 of the lower tray at their cross-over points. Stacks of trays in partially overlapping relationship may be housed on shelves in a container. The exposed portion of each tray may have recesses for dishes or condiments.
Patent GB-441229-A (GB)
Title: Improvements relating to locks for motor vehicle doors
IPC: E05B15/02
Filed: 1934-10-12
Abstract: 441,229. Door-lock striking-plates. WILMOT-BREEDEN, Ltd., and PARKES, L. W., Camden Street, Birmingham. Oct. 12, 1934, No. 29243. [Class 44] In a sliding-bolt lock for motor-vehicle doors, the attachment plate a for the dovetail striker c has a hollow boss b extending at right angles to the face of the pillar h, the dovetail having a stem d which is secured to the boss by a nut f, a resilient bush or washers e, and washers g.
Patent GB-717033-A (GB)
Title: Improvements in or relating to coal ploughs
IPC: E21C27/46
Filed: 1950-11-30
Abstract: 717,033. Coal-mining machines. NATIONAL COAL BOARD, WITHERS, A. G., and MARSH, F. E. W. Nov. 29, 1951 [Nov. 30, 1950], No. 29382/50. Class 68(1) When the leading edge of a cutter of a coal plough encounters a resistance to forward movement greater than a predetermined value, the cutter is subjected to percussion, the frequency of the blows on the edge increasing as the resistance increases. The percussion is effected by the continuous haulage rope of the plough, several turns of which are coiled about a pulley 3 on said plough, overcoming a constraining force acting to prevent rotation of the pulley. The pulley shaft drives either directly or through a gear train 40-44, a cam 38. The spring-biassed follower 11 of the cam moves a member 14 connected to a linkage 24, 46, 47, 16, adapted to move a hammer block 18 against a spring 20, until a pivoted trigger 26, mounted on the member 14, abuts against a fixed stop 30 and is rotated thereby on further movement of the member 14. This movement of the trigger releases the linkage so that the spring 20 causes the hammer block 18 to strike the cutting edge 2 of the plough. Alternately the follower 11 imparts a reciprocating movement to a ram, slidable in a slot in the hammer block, to impel the block forward to strike the cutting edge 2. The cutting edge may be formed in sections which may be actuated simultaneously or successively by an associated cam-operated mechanism as described above.
Patent GB-1414786-A (GB)
Title: Conveyors
IPC: B65G15/22
Filed: 1972-06-22
Abstract: 1414786 Endless conveyers POWERSCREEN INTERNATIONAL Ltd 19 June 1973 [22 June 1972 26 Aug 1972] 29399/72 and 39925/72 Heading B8A A conveyer unit for attachment to a main conveyer 30 comprises a C-frame 10 connected to an endless conveyer framework 16 by a brace 21 and by a bearing 20. The framework is able to pivot on the bearing 20 and around a stub axle 11 to which the brace 21 is connected. An hydraulic motor 15 and an actuator 13 cause the framework 16 to rotate about a substantially vertical axis which passes through the bearing 20 and axle 11. An hydraulic motor 24 drives the belt 18 of the conveyer unit which also includes a feed boot 23 into which the main conveyer 30 discharges. The C-frame 10 is mounted for vertical adjustment on the conveyer 30 by hinge means and a screw member 25. Fig. 2, shows one of three alternative arrangements for mounting the conveyer unit on the main conveyer 30. In the construction shown in Fig. 6, a conveyer unit feeds the main conveyer 30 which is discharged by a further conveyer unit.
Patent GB-520235-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N3/22
Filed: 1938-10-11
Abstract: 520,235. Variable resistances. KOLSTERBR,ANDES, Ltd., and SMYTH, C. N. Oct. 11, 1938, No. 29464. [Class 37] [Also in Group XL] In a television receiver, the currents in the deflecting coils H.V., and hence the vertical and horizontal deflections produced are dependent on the position of a contact C on the face of a plate B of resistive material. The plate carries transverse current from separate sources 6 and acts as a balancing potentialdivider in two bridge circuits, in which the coils are so arranged respectively that they carry no current when the bridges are balanced. Reference has been directed by the Comptroller to Specification 500,809, [Group XL].
Patent GB-916269-A (GB)
Title: Electronic programme control apparatus
IPC: G05B19/06
Filed: 1960-08-26
Abstract: 916,269. Drilling. FICHTEL & SACHS A.G. Aug. 26, 1960 [Sept. 22, 1959], No. 29519/60. Class 83 (3). A programme control apparatus for a machine tool comprises a rotatable hollow drum 3 having parallel longitudinal slots 12 in the ray path between a light source 7 and a photoelectric cell 8. The photo-electric devices are both adjustable on an adjustable support 14. The drum 3 is indexed by ratchet means 4, 6. As a slide 2 carrying the drum is traversed, the light rays are interrupted at some point by an adjustable stop 9 in the operative slot, causing a switch to be operated, to control a drill depth feed or to alter a work or tool feed speed and index the drum. The drum may be traversed at a slower rate than the slide by reduction gearing.
Patent GB-789836-A (GB)
Title: Jet propulsion unit equipped with a jet deflector
Inventor: BERTIN JEAN HENRI
IPC: F02K1/00
Filed: 1955-10-17
Abstract: 789,836. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Oct. 17, 1955 [Oct. 15, 1954], No. 29562/55. Class 110 (3). [Also in Group XXXIII] In Fig. 2, a jet nozzle 1 is formed with portions 2a, 2b pivoted on axes 3a, 3b and movable by jacks 4a, 4b. One or other portion 2a, 2b is moved to deflect the jet. In Figs. 3, a plurality of guide vanes 6 are provided, and diametrically extending members 9a, 9b are movable between the positions shown in full and chain-dotted lines to reverse the jet. The vanes may be shaped so that the deflected jet issues at rightangles to the nozzle axis. Specifications 691,302, 696,088, [Group XXXIII], 733,727 and 750,623 are referred to.
Patent GB-600436-A (GB)
Title: Improvements in and relating to electric billet heating machines
IPC: H05B3/00
Filed: 1945-11-07
Abstract: 600,436. Heating billets by passage of current. ENGLISH ELECTRIC CO., Ltd., and BARLOW, K. F. Nov. 7, 1945, No. 29668. [Class 39(iii)] In heating billets 5 by passing current therethrough while gripped between electrodes 1, 2, at least one electrode is so mounted on a machine member 10 as to tilt to a limited extent so that the contact face of the electrode is self-aligning with that of the billet, and a switch 22 is provided to initiate current supply at a predetermined pressure. Circumferentially placed studs 12 extend axially from an electrode holder 4 on the machine member or backing plate 10 through large clearance holes 13 in said member, and movement of the studs is limited by nuts 14 thereon having conical heads 14a engaging conical recesses in the member. Circumferentially placed compression springs 11 engage in opposite recesses in the holder 4 and plate 10 maintain a predetermined axial clearance round the studs and allow the holder to tilt in any direction if the end of the billet is not cut off square. Pressure is applied to the billet by a ram 6 and a switch 22 is actuated by axial movement of the electrode holder 3 to switch current on at a predetermined pressure and off at a higher pressure. The electrodes have grooves 2b around which cooling fluid is circulated through pipes 18, 19. Each holder is attached to the backing plate by a flexible connection 20. A relay 24 in the circuit between the current supply 25 and the electrodes is controlled by a switch 22 with a push button 23 actuated by a lever 26 pivoted on a sleeve 27 axially adjustable on a stud 29 on the holder 3 and biassed upwardly by a spring 28. As shown, the lever 26 engages a stud 31 and the circuit is open; but when pressure is applied by the ram, the lever 26 tilts to push the button 23 and close the circuit. Should excess pressure be applied, the lever tilts further about a stud 32, whereby the button is released to open the circuit. Specification 592,598 is referred to.