baber/WOPTO huggingface dataset:
Patent GB-702683-A (GB)
Title: Method and apparatus for extracting the hypophyses from the heads of slaughtered animals
IPC: A22B5/00
Filed: 1951-05-29
Abstract: A device for removing pituitary glands from animals' heads comprises two spoon-shaped members, one of which is mounted for rotation about the axis of the instrument to form either an open hemispherical spoon or a closed sphere.  This, in its open condition, is inserted through the occipital hole and spinal duct of the head until it lies adjacent to the gland and the two halves are then closed, so that, in closing, they cut around the gland and enclose it, after which the closed device is withdrawn.  In actual forms of the tool the outer spoon-like element is mounted on a hollow shaft extending from the handle, while the inner spoon is secured on an inner rotatable spindle which is moved, as necessary, by suitable lever or rack and pinion mechanism.
Patent GB-1179027-A (GB)
Title: Hydraulic Device for the Prestressing and Undoing of a Bolted Connection
IPC: B25B29/02
Filed: 1967-03-17
Abstract: 1,179,027. Bolting. LICENTIA PATENTVERWALTUNGS-G.m.b.H. 17 March, 1967 [18 March, 1966], No. 12662/67. Heading F2H. An hydraulic device mountable on and demountable from a bolted connection for pretensioning and releasing the bolted connection comprises an annular cylinder 15, an annular piston 16 and a threaded plate 17 connected to one end 11 of the bolt 10. The bolt 10 to be tensioned passes through a hole 13 in a flange 14 and the device is particularly suitable in circumstances where there is only a small gap 24 between the top of the bolt and a flange 22. An annular plate 18 is provided so that when fluid is admitted through a line 20 to a chamber 19 below the piston, the piston urges the plates 17, 18 upwards. The nut 12 is then tightened by a pin spanner inserted through arcuate windows 27 and into bores 26. In modifications, the plate 18 is replaced by a second piston and cylinder arrangement and the plate 17 may be screwed to a bolt which engages a threaded recess in the top of the bolt to be tightened. Reference has been directed by the Comptroller to Specification 1,078,809.
Patent GB-352585-A (GB)
Title: Improvements in or relating to processes for the concentration of acetic acid and other lower aliphatic acids
IPC: C07C51/46
Filed: 1930-04-24
Abstract: Acetic and other lower aliphatic acids are concentrated by distilling the aqueous acid with methylene chloride.  The condensate separates into two layers, the methylene chloride layer being returned to the still until all the water is removed.ALSO:Acetic and other lower aliphatic acids are concentrated by distilling the aqueous acid with methylene chloride.  The condensate separates into two layers, the methylene chloride layer being returned to the still until all the water is removed.
Patent GB-276413-A (GB)
Title: Improved method for the manufacture of stockings
IPC: D04B11/28
Filed: 1926-05-18
Abstract: 276,413. Graeber, R. May 18, 1926. Stockings and socks.-In the manufacture of stockings by a single cycle of operations on a flat knitting-machine, heel portions are knitted simultantously with a foot portion, by increasing the number of loops when the leg portion has been completed in accordance with the length of wheel to be made and obtaining the desired shape of heel by narrowing. When the leg portion 1, Fig. 1, is completed up to the line a, b, additional rows of loops 2, 3, and 4, 5, are sunk, and knitting is continued in the width II either by one or three thread-guides, narrowing being effected as diagrammatically shown in Fig. 1. If one thread-guide is used, narrowing is effected by inwardly-directed loop transfer, the rows of loops a - - e, a - - c, and b - - f, b - - d, being actually in knitted connection and hanging in a folded condition, as shown in Fig. 3; if three thread-guides are used, the adjacent rows of loops shown are connected during knitting by a so-called split-connection of the like. As seen from Fig. 5, which shows the portion so far knitted spread flat, the rows of loops in the heel portion 6, 7 run at right-angles to those in the adjoining portions, thus preventing ladders extending down from the leg. The narrowing is effected to the extent of one or more loops in each or certain of the rows of loops, so that the line g - - h, Fig. 13, in the finished stocking may be more or less inclined. Longitudinal running-on rows 9, 10, Fig. 8, and fashioning rows 12 may be provided in the heel portions. Reinforcing threads may be inserted in the portions 13,Fig. 8. of the foot. To obtain a pocket heel, the rows of loops at the outer edge of the heel portions are offset, and to obtain a pocket heel with an inclined seam, some loops are omitted as shown diagrammatically in Fig. 11, the rows of loops being subsequently connected by looping.
Patent GB-128932-A (GB)
IPC: F16K1/52
Abstract: 128,932. Mat, J. B. June 29, 1914, [Convention date]. Lift valves; spindles.-In order to regulate the lift of a lift valve actuated by a push rod, the spindle is divided and provided with a screwed sleeve adapted to form an adjustable lost motion device. The conical valve 41 which co-operates with an indiarubber seat 42 has a spindle 38 provided with a coned enlargement 39 which works in conjunction with the adjustable sleeve 36. This sleeve is adjustably secured by a screw thread and lock-nut 37 on the actuating spindle 35 which is bored out at 40 to receive the end of the valve spindle. The actuating spindle is fitted with a handle 47 and with a pin 46 engaging a cam groove in the gland of a stuffing box 33. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a water tap fitted with a pressure-regulating valve in the inlet pipe connexion. The pressure-regulating valve comprises a valve member 5 actuated by a diaphragm 6 arranged between a concave plate 7 and a cover and loaded by a spring 11 adjusted by a cap 10 screwed on to the casing and secured by a screw 12. The stop valve comprises a spring-pressed valve member 18 adapted to engage a seat 17 and having a lost motion connexion with an actuating spindle 22. This spindle has a stop pin 29 and a screw-threaded part 26 adapted to screw into the gland 24 of a stuffing-box 23. In a modification, a stop valve having a conical valve member connected to the screwed actuating spindle by a lost-motion device is so arranged that the spindle cannot press the valve member on to its seat. This subject-matter does not appear in the Specification as accepted.
Patent GB-724732-A (GB)
Title: Improvements in or relating to starting apparatus for synchronous motors
IPC: H02K19/14
Filed: 1953-05-08
Abstract: 724,732. Synchronous motors. KABUSHIKIKAISHA CHUZO-SEISAKUSHO, and TAKEUCHI, Y. May 8, 1953, No. 12933/53. Class 35. The rotor of a synchronous motor carries an exciting winding 2 energized through a rectifier from the supply and a coaxial short-circuited winding wound in the inner, intermediate or outer position, 8, 9, or 10, with respect to the exciting winding, for the purpose of reducing the voltage induced in that winding during induction starting on the damping winding 11.
Patent GB-476415-A (GB)
Title: Improvements in or relating to fireplaces
IPC: F24B1/188
Filed: 1937-05-07
Abstract: 476,415. Heating air. HEAP, O. H. May 7, 1937, No. 13129. [Class 64 (i)] Open-ended non-conducting tubes 10 arranged side by side form spaced firebars 10a with an ash space beneath, pass up in contact at the back of a domestic fireplace, and then bend forwards at 10c, where the tubes are spaced apart and flattened or staggered for passage of flue gas. The lower and top ends of the tubes are welded to transverse members 12, 13 respectively, and the tops of the tubes are bent up or open into a compartment 18 above the entrance to the chimney 11. Front and back legs 14, a plate 19 and removable grate bars 17 and an ash box 15 are provided. Bars may extend across the lower parts of the tubes, and a concave reflector may be fitted at each side of the fireplace. Specifications 143,805 and 159,980, [both in Class 126], are referred to.
Patent GB-653663-A (GB)
Title: Improvements relating to mimic diagram panels for railway and other indication systems
IPC: H02B15/00
Filed: 1948-05-13
Abstract: 653,663. Miniature diagram panels. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., PETER, L. H., and SHEPPARD, E. A. May 13, 1948, No. 13148. [Class 105] A miniature diagram panel for railway signalling purposes or for showing conductor networks is made to present a concave surface so disposed that no light from an extraneous source is reflected into an observer's eye from the panel surface. As shown, the diagram panel 1 carried by the control desk 3 has its centre of curvature at 7. The pencil of lines 8, 9 from an observer's eye 5 to the panel limits are reflected as lines 10 and 11 which meet a surface 12; any light to be reflected into the observer's eye from the panel must emanate from such surface and this, being coloured black, no such reflection arises. The invariable details of the track are shown on the surface of the panel and are made luminous by edge-on illumination of the panel with internal reflection of the light within the transparent material of the panel, while variable information is given by strips of transparent material placed immediately behind or in front of the panel and likewise rendered luminous by internallyreflected light from appropriate sources as and when required, as described in Specification 650,492.
Patent GB-717875-A (GB)
Title: Improvements in circular looms
IPC: D03D37/00
Filed: 1952-05-23
Abstract: 717,875. Circular looms. SAINT FRERES. May 23, 1952 [May 23, 1951], No. 13157/52. Class 142(2) Each warp thread in a circular loom is provided with an individual stop motion .member; the stop motion members are arranged in groups, each group bearing against a bar which is acted on by a spring to tension the associated group of warp threads. In one embodiment bars 7 are mounted in pivoted levers 8 subjected to the action of relatively strong springs 9. Pivoted warp stop motion levers 1 during normal working of the loom bear against the bars 7 under the influence of the warp threads. On thread breakage a lever 1 is urged by a weak spring 10 into contact with a conducting bar 11 to close a circuit to stop the loom. In a second embodiment the warp stop motion described in Specification 573,398 is used, modified by an abutment 22 on each stop motion rod 12 bearing on a bar 26 carried by pivoted levers 23 subjected to the action of a strong spring 25. The levers 23 and bar 26 form a frame common to a number of rods 12 and serve to tension a group of warp threads.
Patent GB-132975-A (GB)
IPC: B67B7/46
Abstract: 132,975. Dean, A. S. Feb. 11, 1919 Hand shcars.-In a can opener of the shears type, a bevelled cutting-blade 3 is arranged to co-act with a bowed jaw 5 having a bifurcated extension 6 forming gripping-fingers arranged to straddle the blade 3, which is extended beyond the gripping-fingers so as to form a piercing- point.
Patent GB-331033-A (GB)
Title: Improvements in and relating to pneumatic gauges for indicating the level of liquids in tanks or other receptacles
IPC: G01F23/16
Filed: 1929-04-29
Abstract: 331,033. Willmann, P. April 29, 1929. Indicators actuated by pressure of head of liquid.-A liquid-level gauge has a pump with a ram 1 compressing a rubber bag 4 fixed to a fitting 5 carrying nipples 7<a>, 7<b> connected to a dip-pipe e extending to the bottom of a tank, and to a manometer a indicating the pressure of the column of liquid overcome in the dip-pipe, the bag being mounted on a casing 2 independent of the manometer and carrying the nipples. A spiral spring 8 is mounted within the bag or around the ram within the casing, so as to press the head of the ram against an air opening 9 in the bag. The ram may be secured in depressed position by a pin and slot or screw connection between the knob 10 and guiding sleeve 3. In order to steady manometer readings, a coiled capillary tube b is inserted between the pump and manometer, and the dip pipe is provided at its lower end with a horizontal extension such as the coil f.
Patent GB-456149-A (GB)
Title: Improvements in or relating to rubber derivatives
IPC: C08C19/16
Filed: 1935-05-03
Abstract: Solid products are made from a solution of rubber hydrochloride by emulsifying the solution with a liquid, e.g. water which is immiscible with the solvent and is a non-solvent for the rubber hydrochloride, and heating to drive off the solvent either alone or associated with the non-solvent liquid.  Plasticizers, fillers, dyestuffs, and other ingredients may be incorporated with the solution to modify the properties of the final product.  The heating of the emulsion may be carried out in a mould to obtain porous blocks.  To produce a variegated effect a number of differently coloured emulsions may be incompletely mixed.  In an example, a 4 per cent solution of cr<\>zepe rubber in chloroform is treated with gaseous HC1 until saturated.  The solution is emulsified with an equal volume of a ,5 per cent aqueous soap solution and injected into a metal steam heated mould, the region above the liquid in the top of the mould being maintained at a reduced pressure, e.g. ,2 atmosphere, while evaporation of the chloroform is proceeding.  The resultant block is removed from the mould, allowed to drain, and dried in a current of warm air.
Patent GB-573976-A (GB)
Title: Improvements in or relating to airfoil constructions
IPC: B64C3/00
Filed: 1944-07-12
Abstract: 573,976. Wing structures. BUDD MANUFACTURING CO., E. G. July 12, 1944, No. 13325. Convention date, June 28, 1943. [Class 4] Fig. 3 is an enlarged crosssection of a wing structure, shown in plan Fig. 1, which has the skin sheets extending between the nose or front spar section 10 and the rear or main spar 13 strengthened by reinforcing stringers parallel to the spars. Deep stringers 32 of heavier gauge than the skin sheets are used adjacent the spars and small depth stringers 34 of light gauge in the intermediate portion of the blankets. The front spar 10 comprises cords 14, 15 interconnected by vertical struts 16 and by the nose skin 17 and nose ribs 18 double in number that 'of the main ribs 23 which have shear webs 24 with cap strips 25, 26. The rear spar 13 comprises a web plate 19 with stiffeners 22. The stringers are connected by shear clips to the cap strips and the skin sheet is welded to cords 15 and 21. A single attaching plate or clip spans all the shallow stringers 34. In a modification, the strong regions of the skin blanket have alternate deep stringers and shallow stringers.
Patent GB-976167-A (GB)
Title: Method of producing a printed circuit board
Inventor: UNDERWOOD JOHN DUCKLES
IPC: C23F1/30
Filed: 1962-04-06
Abstract: 976,167. Etching. STANDARD TELEPHONES & CABLES Ltd. April 5, 1963 [April 6, 1962], No. 13356/62. Heading B6J. [Also in Division H1] In a method of producing a printed circuit, a coating of solder is applied to a conductive coating previously attached to a board, after which portions of the solder coating and the conductive coating are removed to leave a pattern of conductive material coated with solder, preferably a 60:40 alloy of Sn:Pb. Preferably the board carries a coating of high purity copper which is cleaned, coated with flux, and tinned in a roller solder-coating machine at 220-270‹ C., any ridge of solder at the trailing edge of the board being removed mechanically. The solder surface is then washed, rubbed with moist lime, rinsed, dried, and degreased. The board is immersed, first in photo-resist, then in metal etch resist, being dried and heated after each immersion; the coated surface is then exposed to a carbon arc lamp through a transparency representing the desired circuit pattern, and is developed in trichlorethylene vapour. Alternatively, two coatings of photo-resist may be applied to the board, exposure being to a mercury vapour lamp; the board is developed in cold trichlorethylene, then dyed in a dye bath developer. Other methods may be used to apply an etch-resist e.g. silk screening. The unwanted solder is then removed by an etchant comprising:- Fluoboric acid (40 part w/v.) 250 ml. Hydrogen peroxide (100 vol.) 50 ml. Distilled water to one litre. Alternatively, the solder may be etched in ferric chloride solution in the presence of dilute sulphuric acid, or ferric nitrate; to monitor the progress of etching the copper coating is used as one electrode, another electrode being gold, the potential between the electrodes being measured; a sharp fall in potential indicates that the solder has been etched away, and a second, smaller, drop,. when the solder-copper alloy layer is penetrated, denotes the termination of the etch, and may be used to indicate, e.g. by flashing a light, or to remove the board. The unwanted copper is removed by a second etching step in, e.g., an agitated solution of ammonium persulphate (250g. with distilled water to 11.) at 60‹ C., or at 45‹ C. in a spray of ammonium persulphate, or in an etchant comprising 100g. chromic acid in 50 ml. H 2 SO 4  of s.g. 1.84. The resist is removed and moist lime is rubbed over the board surface, which is then degreased, washed and dried.
Patent GB-133927-A (GB)
IPC: B60T13/46
Abstract: 133,927. Luard, E. S. July 9, 1919. Piston-rods especially applicable for vacuum-brakes consist of a tube 4 to which solid ends are secured for attachment to the piston and to the brake-lever respectively. The tube 4 is made of any suitable non-corroding metal or alloy, preferably rustless steel, or steel treated to protect it from rust. The ends 1, 2 are formed with spigot portions which enter the tube 4. In order to secure the ends to the tube, metal is introduced by a welding process into holes 9, 10, and into V-recesses formed between the ends of the tube 4 and the shoulders on the spigots. A passage 11 may be formed in the end 1 in order to put the cylinder in communication with the interior of the piston-rod.
Patent GB-451978-A (GB)
Title: Improvements relating to door fastenings
IPC: E05C1/14
Filed: 1935-05-07
Abstract: 451,978. Latches. TONKS, W. H., and SPARKS, W., 201, Moseley Street, Birmingham. May 7, 1935, No. 13410. [Class 44] A sliding latch bolt is withdrawn by levers n actuated by push pieces k sliding in fixed knobs j. A latch head c has a tail piece d movable in a casing let into the edge of the door. A knob is secured to each door face, or to one face only, and the end of the lever n is pivoted to lugs o on a plate m associated with the knob. The push piece k is pivoted to the lever at an intermediate point so that pressure on the push piece withdraws the bolt against a spring e which is arranged between the bolt head and a transverse plate f. The plate d has a keyhole-shaped slot p, Fig. 3, and a rotary member q trunnioned in the casing has a flattened part r over which the slot p can normally slide. The member q has grooves u ongageable by a key to enable the flat part r to be turned through a right angle to lock the latch in its shot position.
Patent GB-594292-A (GB)
Title: Improvements in wheel mountings for motor vehicles
IPC: B62K25/06
Filed: 1944-07-13
Abstract: 594,292. Wheel mountings. WOOLER, J. July 13, 1944, No. 13434. [Class 136 (iii)] [Also in Group XXXII] In a motor vehicle wheel mounting each end of the wheel axle is connected with a cross member at a point intermediate in the length thereof and each of the opposite ends of the cross member extends through a slot in a cylindrical guide and engages a piston opposed by springs acting on both its sides and enclosed within the guide and each piston is provided at its opposite sides with long-sleeve portions forming guides to provide parallel motion of the pistons the inner ends of the springs being engaged in the sleeve portions. The Figures show the parts of the mounting for a motor cycle rear wheel on one side only. A prong 1 of a fork carries a pair of cylinders 3 each housing a piston 4. The pistons are connected together by a cross-member 2 on which one end of the wheel axle is mounted. The pistons are held in place in the cylinders between a strong spring 6 and a pair of springs 5. The pistons each have long-sleeve portions 4a for guiding them in the cylinders. A lug may be provided on the cylinders as a mudguard stay attachment. The cross-members are attached at each end to the pistons by screwed bolts 7 having wing nuts 10 at one end and nuts 9 at the other, the arrangement facilitating removal of the wheel. When applied to a front wheel mounting the cylinders are mounted the opposite way up to that shown and attached to the lower ends of a front fork.
Patent GB-896504-A (GB)
Title: Improvements in or relating to textile combing machines
IPC: D01G19/10
Filed: 1959-04-20
Abstract: 896,504. Combing machines. SACO-LOWELL SHOPS. April 20, 1959 [April 28, 1958], No. 13440/59. Class 120(1) A combing machine with a half-lap has means for applying suction to the side of a sliver adjacent the needles of the half-lap so as to urge the sliver into contact with them during the combing action. By suitable casings in the lower part of the combing machine, the comb cylinder is caused to operate in a region of sub-atmospheric pressure and the provision of the passage-way 40 through the cylinder results in suction being applied in the proximity of the leading pins of the half-lap 18. A flexible sheet member 52 is arranged to obstruct the passageway 40 during most of the comb cylinder's revolution but as the cylinder increases speed for the combing action a weight 58 moves to displace the member 52 and thus to open the passageway 40 to the influence of the sub-atmospheric pressure.
Patent GB-908565-A (GB)
Title: Improvements in or relating to feeding troughs for poultry houses
Inventor: BOWDEN JACK
IPC: A01K39/014
Filed: 1960-04-19
Abstract: 908,565. Animal feeding appliances. LAND ENGINEERS Ltd. April 19, 1961 [April 19, 1960], No. 13565/60. Class 5(2). In a feeding trough rotatably mounted in the wall of a poultry house by means of spindles 16, a mesh guard 15 is hinged to the top of the trough and rests against a partition 13 extending the length of the trough, the guard preventing access to feed stored behind the partition 13. To fill the trough it is pivoted so that its longitudinal opening 10 is uppermost and outside the wall of the house, the guard 15 than falling away from the partition so that feed may be poured into the space behind the partition.
Patent GB-437673-A (GB)
Title: Improvements in or relating to excess current circuit breakers
IPC: H01H71/44
Filed: 1934-05-04
Abstract: 437,673. Automatic circuit-breakers and electromagnetic switches. SOC. FRANCAISE GARDY, 23, Rue de la Voie des Bancs, Argenteuil, and CLUSEL, M., 1, Allee Victor Hugo, Le Raincy, both in Seine-et- Oise, France. May 4, 1934, No. 13566. Convention date, May 4, 1933. [Class 38 (v)] An overload circuit-breaker is actuated a predetermined time interval after the operation of an excess-current relay or electromagnet by means involving a synchronous motor of the oscillating-armature type adapted to operate through gearing involving a time lag. As shown the attraction of the armature 3 of an electromagnet 1 in the main circuit removes at contacts 4, 22 a short-circuit from a synchronous motor of the oscillating-armature type the oscillating armature 11 of which drives a shaft 40 through ratchet mechanism 27, 28 and gearing 25, 26. At the same time the attraction of the armature 3 causes an engagement between clutching- members 9, 30 so that an arm 8 is stepped round through a predetermined angular amount. This arm may effect a direct tripping action or may close contacts in the tripping circuit of the controlled circuit-breaker. In a modified arrangement the synchronous motor of the oscillating-armature type is permanently connected in circuit and is clutched into operation with the time-lag mechanism when an excess current occurs in the controlled circuit.