baber/WOPTO huggingface dataset:
Patent GB-438562-A (GB)
Title: Improvements in sewing machine feed mechanism
IPC: D05B27/02
Filed: 1935-03-12
Abstract: 438,562. Sewing-machines. SMITH, H., 189, Park Road, Crouch End, London. March 12, 1935, No. 7701. [Class 112] A compound feed mechanism for use in overseaming machines of the type described in Specification 6557/92, [Class 112], for knit goods, has two feed dogs, one in front of and one behind the trimmer, with relative adjustment capable of giving differential feed ratios between 2: 1 and zero. Two side-by-side feed bars a, b have dogs a<1>, b<1> respectively, the dog a<1> being in front of the trimmer and the dog b<1> behind it. The dog a<1> has a greater feed stroke than the dog b<1> except in the zero position so as to crowd the fabric towards the needle faster than it is fed away from it. Each feed bar has a depending part c to which is attached a cap. The cap d of the bar band the cap f of the bar a engage the eccentric h for producing the feed lift motion. The bars are given their rocking motion by a U-shaped rocker comprising two halves j, j<1>, the part j being fixed to the rock-shaft k by a grub screw and the part j<1> being free thereon. The part j has a lug m with an arcuate slot for an adjustable connection to the rod (not shown) for rocking the shaft k. The end a<2> of the bar a is pivoted in the top of the rocker part so that the bar a is rocked directly by the shaft k and member j. The bar b derives its rocking motion through an adjustable linkage from the feed bar a. The cap f of the bar a has a lug f to which is connected a link o pivoted at its other end to a slotted member p swinging from a shaft q. The position of the end of the link o in the slot in the member p determines the feed throw of the dog b<1>. The member p is moved to give feed motion to the bar b by the bar a through a short pivoted link t. In the position shown with the pivot r at the bottom of the slot, the feed dog a<1> has twice the feed stroke of the dog b<1>. At the top of the slot, the dogs a<1> and b<1> have the same feed throw. In the modification shown in Fig. 5, the U-shaped rocker j is not divided. The pivot pin a<3> connecting the bar a with the rocker is fixed in the eye a<2> of the bar and extends into bearings in the rocker. A pivot pin b<3> in the eye b<2> of the bar b extends into a bearing in a swingable arm w freely pivoted on the rockshaft k. As the fed bar b rocks, its end b<2> is supported by the pin b<3> in the arm w freely oscillating on the spindle k. The link mechanism connecting the feed bars is as before.
Patent GB-695736-A (GB)
Title: Process for improving the yield from rimmed or unkilled steel ingots
IPC: B22D7/00
Filed: 1951-04-03
Abstract: 695,736. Casting processes. HUTTENWERK HORDE AKT.-GES. April 3, 1951 [April 5, 1950; Dec. 22, 1950], No. 7730/51. Class 83 (i). A process for improving the yield of sound metal from rimmed or unkilled steel is characterized in that, when the ingot has solidified until a rim free from blowholes has been formed and a little of the surface either remains molten or has been reformed by heat or mechanically, de-oxidizing agents having lower melting points than steel, e.g. aluminium, silicon or titanium, are added in such quantity that partial " killing " occurs and this, with subsequent rapid cooling, prevents air from entering the ingot. Cooling may be assisted by introducing solid scrap or applying a heat-dissipating cover, e.g. water-cooled. The cover may have a projection on its lower face to engage the molten metal and cooling ribs on its upper face, the lower face may be of cast iron or steel and the upper of a good heat-conducting alloy.
Patent GB-989211-A (GB)
Title: Process for polymerizing conjugated diolefins
IPC: C08F36/04
Filed: 1963-02-26
Abstract: A conjugated diolefin or a mixture thereof is polymerized in the presence of an inert organic solvent and 0.1 to 10% based on the diolefin(s) vanadyl chloride as catalyst.  The vanadyl chloride has the formula VOCl3 and the specified diolefins are butadiene isoprene, 2-3-diamethyl butadiene, 2-ethyl-1:3-butadiene 2-propyl -1:3-butadiene, 2-methyl-1:3-pentadiene, 2-methyl-1:3-hexadiene and their mixtures. The specified solvents are saturated aliphatic hydrocarbons, aromatic hydrocarbons and halogenated hydrocarbons. Alcohols may be used to inactive the catalyst.
Patent GB-996865-A (GB)
Title: Improvements in or relating to control lever devices
IPC: B62M25/00
Filed: 1963-02-26
Abstract: 996,865. Control lever mechanism. L. C. H. JUY. Feb. 26, 1963 [April 20, 1962], No. 7756/63. Heading B7E. In a control lever device for a cycle vehicle comprising a pair of levers 6 pivotally mounted on a collar 1 secured to the cycle frame and adjustably gripped between washers 5, 7 by means of wing nuts 9 bearing upon domed washers 8, the collar 1, the levers 6, the domed washers 8 and the wing nuts 9 are formed from a synthetic plastic material such as a homopolymer acetal resin which may be reinforced by metallic inserts. The collar 1 is clamped around a frame tube T by a clamping bolt 2 and is formed with cylindrical bosses 1<6> bored to accommodate threaded pins 4 having striated heads 4<1> which are received in grooves 1<5> and engage the frame tube T to prevent rotation of the collar. Each lever 6 is formed with an aperture 6<2> for mounting on the boss 1<6> and with a recess 6<3> for the washer 5. Each washer 7 is secured against rotation by a radial finger 7<1> engaging a slot 1<9> in a lug 1<8> on the collar 1. The wing nuts 9 include metal nuts 10 incorporated in the plastic material during moulding. Flexible cables C coupled to a derailleur gear or a brake pan through hollow screws 13 secured in lugs 1<10> on the collar 1 and are received in grooves 6<4> formed in the levers 6 and terminating in apertures 6<6> for the cable ends. The collar may carry only a single lever device similar to those described.
Patent GB-1303271-A (GB)
IPC: G01S13/70
Filed: 1970-02-18
Abstract: 1303271 Proximity fuze ELECTRONIQUE MARCEL DASSAULT 18 Feb 1970 [28 Feb 1969] 7845/70 Heading F3A [Also in Division H4]  In a missile, a radar (see Division H4) determines the distance-to-target until a first predetermined distance-to-target is reached, ensuring distance-to-target is determined without the radar and when a second predetermined distance-to-target is reached a pulse is generated to fire an explosive charge in the missile.
Patent GB-548124-A (GB)
Title: Improvements relating to the manufacture of sheathed cores of pulverulent or powdered or comminuted material
IPC: B22F3/03
Filed: 1941-06-24
Abstract: 548,124. Electric heating elements of sheathed wire type. ASHTON, H. T., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 24, 1941, No. 7946. [Class 39 (iii)] [Also in Groups XVII and XXXVI] .In apparatus for filling the sheaths of sheathed wire electric heating elements with insulating material, the sheath 1 is supported by a cup 3 carried by a stem 4 adjustable in a bracket 5 attached to the frame 2, Insulation is supplied at a regulated rate from a hopper 8. The heater 19 is attached to terminals 20, the the lower terminal resting on a plug 21. A cylindrical tamper 24 is reciprocated by two external solenoids 12, 13 which are alternately energized by direct current controlled by a rotating commutator. The coils are counterweighted by weights 17, 18. The insulation passes around the tamper, which gradually rises as the filling proceeds, and the coils 12, 13 automatically rise also.
Patent GB-120587-A (GB)
Title: An Improved Machine for Drying or Torrefying Soil.
Inventor: AUGUST JOHANNES ROBERT CARL
IPC: A01G11/00
Filed: 1917-06-05
Abstract: 120,587. August, J. R. C. June 5, 1917. Treating soil with flame; motor implements; cultivators; rotary drums, mounting; steering implements. - A machine for breaking up soil, treating it with heat, and returning the treated soil to its original position, comprises a travelling frame 19 carrying rotating disks 26 to break up the soil, an elevator 28 to lift the loose soil, and a rotating drum 30, in which the soil is subjected to the action of heat. The disks, elevator, drum, and the driving-wheels 21 of the vehicle are driven from a countershaft 23 driven by a motor 25. The drum 30 is mounted on rolls 31 carried by brackets 32 depending from the main frame 19. The countershaft 23 also drives the shaft 40 of a fan which directs a blast of air carrying with it fuel, such as coal-dust, from a hopper 42 to a burner 43 which directs a flame within the rotating drum. The end 44 of the drum is outwardly flared and i; provided with a similarly flared adjustable baffle plate 45, by which the treated soil is permitted to fall uniformly on a distributing plate 46. In a modification, the travelling frame is adapted to be hauled over the ground and is provided with one front steering-wheel actuated through worm-gear from a hand-wheel, and the rotating drum, which with its reversely rotating beaters is driven from the axle of the main wheels, is fed by an inclined scoop provided with a rotating beater.
Patent GB-1041222-A (GB)
Title: Improvements in or relating to the discharge of packages from store
Inventor: HOLTAM JOHN RICHARD
IPC: B65G1/08
Filed: 1962-03-01
Abstract: 1,041,222. Handling frozen foods. WHITWORTH GLOSTER AIRCRAFT Ltd. March 1, 1963 [March 1, 1962], No. 8087/62. Headings B8A and B8S. Frozen foods in a warehouse which are delivered to point 13 are discharged therefrom by pusher 20 which oscillates about point 19 and lifts the first food over fixed obstacle 12 so that it is discharged thereover by the pressure of the goods in the rear. In order to avoid icing up, pusher 20 is kept continuously on the move. This is done by rotating spider 16. Each arm 16 has a slider 17 which passes right through it and at its upper edge engages the arm 18 of pusher 20. Normally spider 16 rotates and the arms 17 engage the pusher 20 so that it oscillates continuously but not sufficiently to lift the foremost article over gate 12. Instead it agitates the article to keep it from icing up. Operation.-When an article is required a signal is given which causes solenoid 25 to operate and to pivot cam 23 about axis 36. Cam 23 then engages in turn the sliders 17 of spider 16. This causes sliders 17 to move upwards relative to respective spiders 16 so that the pusher 20 is given a larger movement i.e. large enough to urge the first article over gate 12 and thus discharge it. Additionally the spider 16 is provided with an arm 27 which constantly engages cam 23 to keep the latter in movement to prevent icing. Additionally a cam 22 is provided which engages the ends of sliders 17 to also cause them to be in movement for the same purpose.
Patent GB-1202156-A (GB)
Title: Improvements relating to flooring slabs and floors
IPC: E04B5/48
Filed: 1968-02-20
Abstract: 1,202,156. Reinforced concrete flooring slab. SOC. DE TRAVAUX POUR LA CONSTRUCTION ET L'HABITAT INDUSTRIELS TRACOBA. 20 Feb., 1968 [20 Feb., 1967], No. 8126/68. Heading E1W. Longitudinal ribs 2 on a reinforced concrete floor slab 1 have recesses 3, 4 opening on lateral faces of the ribs, the bases of the recesses being formed by frangible webs 6 which may be broken by a hammer blow at locations where it is required to pass an element, such as a conduit, transversely through the rib. The recesses may be formed on only one face of a rib 2, Fig. 16 (not shown) or on opposite faces in staggered disposition, Fig. 17 (not shown) or may be formed on opposite faces of the ribs with a recess 3 on one face opposed by a recess 4 on the opposite face so as to be separated by a common frangible base 6. At least one of the cross-sectional dimensions of the recess may decrease towards the base 6. The ribs may project from the ends of the slab over the whole or a part as in Fig. 14, of their crosssection to function as support spurs. The edges of the slabs may be chamferred to allow reinforced concrete joints to be formed therebetween or as shown in Fig. 12 may have roughened vertical edge faces 8' between which non-shrinking or expansive high strength bonding mortar 9' is introduced.
Patent GB-673890-A (GB)
Title: Improvements in or relating to electrical welding equipment
Inventor: SLEE KENNETH VICTOR
IPC: B23K11/31
Filed: 1949-03-25
Abstract: 673,890. Welding by pressure. STANDARD TELEPHONES & CABLES, Ltd. March 25, 1949, No. 8156/49. Class 83 (iv). In an electric welding apparatus having fixed and movable electrodes, the movable electrode is mounted on a support by a plurality of springs which interconnect the electrode and support and constrain the electrode to move substantially parallel to the support axis. A fixed vertically adjustable electrode 2 is mounted on a base 1 and a support 4 carries flat copper-beryllium springs 6 which hold an electrode head 7 and form the current conductors for an electrode 5 therein. Pivoted to the support 4 is an arm 10, one end 9 of which engages a platform 8 on the head 7 and the other end of which is connected by a cord 15 to a foot pedal 14. Auxiliary springs 13 are secured to the arm 10 to engage the top of the platform 8 and a return spring 16 is connected to the arm 10 and base 1. A current control device comprises a spring-urged cam 31 held initially by a pivoted catch 37 engaging a notch 38 in the cam 31 and released when the catch 37 is depressed by a member 35 pivoted to a link 39. In operation the electrode 5 is held initially raised by engagement of the end 9 with the platform 8 to tension the springs 6 while the cam 31 is held by the catch 37. The pedal 14 is depressed to lower the end 9 and the electrode 5 descends under the tensioned springs 6. The springs 6 reach their untensioned horizontal position and the springs 13 engage the platform 8 to lower the electrode 5 further. This further movement tensions the springs 6 and moves the link 39 by movement of a link 43 until the top of a slot 34 in the member 35 engages a pin 36 on the catch 37 to rotate the catch 37 and release the cam which triggers a current control unit. On release of pressure from the pedal 14 the spring 16 retracts the arm 10 and allows resetting of the cam 31.
Patent GB-171650-A (GB)
Title: Improvements in combing machines
IPC: D01G19/14
Filed: 1921-03-16
Abstract: 171,650. Fine Cotton Spinners' & Doublers' Association, Ltd., and Bellhouse, R. L. March 16, 1921. Combing-machines. - The top detaching-roller B of a Nasmith combing-machine is weighted by a weight W suspended directly from the carrying lever A. The weight may hang above the beam D or be drawn to one side by a cord attached to an arm fixed on the shaft e.
Patent GB-307807-A (GB)
IPC: D01D4/02
Filed: 1929-03-13
Abstract: 307,807. I. G. Farbenindustrie Akt.- Ges. March 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cellulose xanthates, processes for making filaments and films from.-In the manufacture of artificial threads, horsehair, bands, films, &c., from non-matured viscose made from non- matured alkali cellulose, the viscose is spun through non-metallic nozzles into precipitating baths of high acid content, such as 40-85 per cent sulphuric acid; defects such as poor spinning and formation of lumps at the nozzles which occur when using metallic nozzles in the process are thereby avoided.
Patent GB-1024503-A (GB)
Title: Hydrostatic power transmission
Inventor: WALKER ALLEN CHIVERS
IPC: F15B21/04
Filed: 1962-03-03
Abstract: 1,024,503. Hydrostatic transmission. DOWTY TECHNICAL DEVELOPMENTS Ltd. Feb. 21, 1963 [March 3, 1962], No. 8321/62. Heading F2C. An hydrostatic power transmission includes a heat exchanger for the exchange of heat between the working liquid and the temperature control apparatus of an internal combustion engine driving the transmission. The working liquid for an hydrostatic transmission 3 driven by an internal combustion engine 1 is circulated by a pump 6 through coils 41 in a heat exchanger 34 located in the bottom of the engine coolant radiator 11. The coolant passes from the engine to a thermostat 13 which by-passes the coolant by pipe 27 to the heat exchanger 34 when starting, the coolant being circulated by a pump 12.
Patent GB-296645-A (GB)
Title: Improvements in or relating to the closure of bottles, jars and other receptacles
IPC: B65D41/12
Filed: 1928-03-19
Abstract: 296,645. Closure Service Co., (Assignees of Carvalho, L. R. N.). Sept. 26, 1927, [Convention date]. Capsules; v a c u u m closures.-A closure for bottles, jars, &. consists of a cap 17 having a top portion 18 terminating in a downwardly stepped annular portion which provides a flat shoulder 21 for the reception of a packing ring 22, the packing ring being ultimately confined between the walls 11, 12 of an annular recess around the bottle mouth, the shoulder 21, and a vertical flange 19 which depends from the top portion 18 and is provided at its lower edge with corrugations 20. The cap is pressed down by pressure applied on the shoulder 21 to expand the packing ring 22 against the walls 21, 11 and then is drawn down further by pressure applied at an angle, this pressure being applied by turning the corrugations 20 inwards beneath a rounded shoulder 16 on the bottle &c. A rib 14 may encircle the bottle neck below and in proximity to the shoulder 16, to allow the cap to be levered off the bottle by a coin. The cap may be applied as a vacuum closure and may be used repeatedly after its first removal.
Patent GB-207462-A (GB)
Title: Improvements in or relating to ejectors for sporting guns
IPC: F41A15/06
Filed: 1923-03-23
Abstract: 207,462. Declaye, J. March 23, 1923. Breech actions, drop-down barrel.-Ejector mechanism has the sear spring adapted to act on the sear in a direction tending to disengage the sear from the hammer. As shown, the sliding hammer 3 is mounted in an ejector box 1 and is operated by a helical spring 2. The sear and sear spring are formed by a spring blade 13 having a hammer-engaging hook 14 and a projection 15 engaged by the cocking lever 12. When the gun is fired, the cocking lever rises and raises the sear into engagement with the hammer. When the gun is opened, the cocking lever turns back and releases the sear, which then, under the influence of its spring blade, releases the hammer.
Patent GB-858801-A (GB)
Title: Wheel assemblies for boats and boats fitted therewith
IPC: B63C13/00
Filed: 1957-03-14
Abstract: 858,801. Boats adapted to run on land. HIGNELL, R. J. June 13, 1958 [March 14, 1957], No. 8381/57. Class 113. A wheel assembly for attachment to a boat to be towed on the road comprises a wheel 11 mounted on a wish-bone fork element 14 having a shaft 13 bonded to a rubber sleeve 15 carried by a support 12. In a hard chine boat an adjustable bracket 23 is bolted to the gunwale and strip members 16 have spigots entering blind holes in the chine timber 19. In a roundbilge boat, the strip members 16 may be bolted to the hull or provided with hook ends to engage brackets attached to the hull. A stern fitting 28 is provided for towing.
Patent GB-857027-A (GB)
Title: Improvements in or relating to the bending of metal panels
Inventor: CARLE JOHN
IPC: B21D31/06
Filed: 1957-03-14
Abstract: 857,027. Bending; sizing and reshaping metal sheets. TILGHMAN'S Ltd. April 18, 1958 [March 14, 1957], No. 8418/57. Class 83 (4). [Also in Group XXIII] A method of bending metal panels, such as aircraft wing panels, comprises passing a panel to be bent on a conveyer below an impeller wheel which throws shot at the panel and by a peening action causes the panel to bow towards the wheel. An impeller wheel 5 on a carriage 3 adjustable along an inclined track 2 throws steel shot, from a hopper 10, over a limited angle 11 on to a metal plate passed underneath the impeller by a roller conveyer 1. The impeller wheel 5 is positioned to one side of the centre of the conveyer so that the peening action of the shot is greater at that side of the plate and the plate is consequently bowed towards the impeller to a greater degree at that part to'give a curvature varying across the panel. A nozzle 12, Fig. 2 (not shown), projecting shot in jet form and movable across the panel removes any local defects in the desired shape. The speed of the impeller 5 and/or the speed of travel of the panel may be varied so that the shape of the panel is varied along its length.
Patent GB-634061-A (GB)
Title: Improvements relating to refuse bins
IPC: B65F1/16
Filed: 1948-03-24
Abstract: 634,061. Refuse bins. NEALE, W. March 24, 1948, No. 8605. [Class 26] In a refuse bin having a body 10 which has a removable container 13, a lid 11 hinged to the body and a pedal lever 15 having a tread 18 pivoted on an axis 16 connected by a link 20 pivotally connected to a bracket 23 on the lid whereby the lid can be opened by depressing the tread 18, the pedal lever link and bracket are so disposed that a first operation of the pedal lever 15 opens the lic 11, the lid remaining open until a seconc operation of the pedal lever is made, this second operation causing the lid 11 to close. The lid is supported in an open position by the projecting portion 24 which engages the outside of the body 10 of the bin in which the container 13 rests on a bracket 14. The second depression of the tread 18 is sufficient to rock the pivotal connection between the end 22 of the link 20 and the bracket 23 over the dead-centre position whereupon the lid 11 will close by gravity. In the construction of Fig. 5 the link 20 passes through an opening 26 in a plate 25 supporting the container 13 and comprises two sections 27, 28 secured together to provide a stepped portion 30, said portion 30 passing through the opening in said plate when the link is moved upwardly to open the lid but engaging said plate on downward movement of said link to prevent the lid closing. The link 20 is connected to the pedal lever 15 by a coupling member 29 pivotally attached to the lower end of the link 20 and sliding in a slot 33 in the pedal lever. In a further modification a cam plate is pivoted about a horizontal axis within the bin, said plate having pivotally attached thereto on its upper side one end of a link the other end of which is connected to the lid. The lower side of said plate is provided with a slot to define' two diverging surfaces. Another link has its lower end connected to the pedal lever, and its upper end adapted to engage the diverging surfaces on said plate, so that successive operations of the foot pedal cause the plate to be rocked in opposite directions thus opening or closing the lid.
Patent GB-1096855-A (GB)
Title: Glass article and method
IPC: C03C21/00
Filed: 1965-03-01
Abstract: The impact resistance of an article of silicate glass containing exchangeable alkali metal ions is increased by (a) chemically or mechanically polishing the surface; and (b) altering the composition of the glass within a surface layer so as to develop compressive stresses therein. Step (a) must be so performed that the surface becomes substantially free from subsurface defects that become visible after light etching when magnified 100 x.  Glass may be removed to a depth of at least 300 microinches.  Before step (a), the glass article may be ground, e.g. by sand, garnet, or diamond particles, for example to render it plane and parallel.  In step (a), cerium oxide polishing may be used. Step (b) may be performed by ion-exchange, preferably by substitution of larger ions for the alkali metal ions of the glass, e.g. by placing Li+- containing glass in a bath of NaNO3 and Na2SO4 at 450 DEG  C., or by substituting K+ for Na+.  For the inspection of sub-surface defects, a buffered acid NH4HF2 solution may be used.
Patent GB-650275-A (GB)
Title: Filing guide or correct angle indicator for use with a saw sharpening file
IPC: B23D63/00
Filed: 1948-03-25
Abstract: 650,275. Saw sharpening tool. CASH, B. G. W. March 25, 1948, No. 8742. [Class 83 (iii)] A guide for indicating the correct angle at which to hold a file when sharpening the teeth of a saw comprises a metal bar tapered at the ends and having a transverse triangular aperture in which a handled file is held by means of a screw. One side of the aperture is inclined at a small angle to the vertical corresponding to the inclination of the teeth of the saw. The upper edge of the guide is kept horizontal while the file is moved backwards and forwards on the teeth.