baber/WOPTO huggingface dataset:
Patent GB-1506830-A (GB)
Title: Piezoelectric crystal assembly
IPC: H01L41/053
Filed: 1976-07-14
Abstract: 1506830 Mounting piezoelectric resonators CTS Corp 14 July 1976 [14 July 1975] 29308/76 Heading H1E A piezoelectric resonator is secured to a base by means of lead wires which pass through tapered apertures in the base, the leads being attached to the base at the surface thereof remote from the resonator where the apertures have minimum width. As shown, leads 22a, 22b are attached by soldering 26a, 26b to nodal points on an XY quartz flexured bar 12 bearing electrodes 18alpha, 18b. The leads extend through conical holes 38alpha, 38b in an alumina base 28 to which they are attached by solder joints 58a, 58b at a point (determined empirically) one quarter-wavelength from the surface of the bar 12. Encapsulation of the bar is completed by a cover 46 of FeNiCo alloy and a layer 66 of epoxide resin on the lower face of the base.
Patent GB-228293-A (GB)
Title: An improved composition for destruction of insect life on animals
Filed: 1923-11-21
Abstract: 228,293. Yeomans, H. Nov. 21, 1923. Insecticides.-A powder for use on animals comprises naphthalene with either flour, chalk, starch, carbonate of magnesia, boric acid, or borax. Chalk and/or oil of eucalyptus may be added.
Patent GB-424292-A (GB)
Title: Improvements in rotatable furnaces for metallurgical purposes
IPC: F27B3/00
Filed: 1933-10-23
Abstract: 424,292. Tilting-furnaces. JACQUES, L., 3, Rue du Chemin, Vert, Clichy, Seine, France. Oct. 23, 1933, No. 29360. Convention date, Oct. 24, 1932. [Class 51 (ii)] In a metallurgical furnace, more particularly adapted for the melting and subsequent refining of cast iron and steel, of the kind having separate and distinct heating and blowing devices, which are brought into operation in two different positions of the furnace with the charge occupying a shallow bath for the melting and a deeper bath for the refining, the heating burner h<1> is arranged radially in relation to the tilting-axis. In the furnace shown a curved portion c<1> of the internal contour forms the melting-hearth and opposite this is a flat portion c<2> through an opening in which the burner h<1> delivers at a steep angle to the normal surface of the bath. When the furnace is tilted through 90‹ in a counterclockwise direction from the position shown the tuyeres p are submerged beneath a deeper bath for the refining operation. The products of combustion are exhausted through one of the trunnions and passed to a recuperator for heating the air for combustion.
Patent GB-989878-A (GB)
Title: Improvements in and relating to identification sleeves
Inventor: CATLEY CYRIL ERNEST DONALD
IPC: H02G3/02
Filed: 1961-08-15
Abstract: 989,878. Identification sleeves for pipes and cables. HELLERMANN Ltd. Aug. 15, 1962 [Aug. 15, 1961], No. 29400/61. Heading B8F. [Also in Division H1] An identification sleeve for a pipe or cable comprises a plastic sleeve 20 having a slot formed with curled edges 21 engaged by a panel 22 of C cross-section.
Patent GB-1098054-A (GB)
Title: Improved coating head for extruders
IPC: B29C48/09
Filed: 1965-07-12
Abstract: 1,098,054. Cross-head extruders. REIFENHAUSER G.m.b.H. July 12, 1965 [July 11, 1964]. No. 29460/65. Heading B5A. A cross-head extruder for sheathing, e.g. cables, ropes, pipes or tapes, particularly with thermoplastics material, comprises a connector 7 and a die holder 6 each being replaceable so that the maximum diameter of the sheathing may be varied without varying the position of the extrusion axis relative to the extrusion barrel, and a replaceable flow-path adaptor 1 for varying the angle which the extrusion axis makes with the barrel. The cross-head is held in place by bolts (2, 3) Fig. 3 (not shown), bridged by cross-member (4) and supporting a screw-threaded bolt (5) which applies pressure against holder 6 to maintain connector 7 within adaptor 1. Fig. 1 shows two embodiments of the cross-head about its longitudinal axis, one having a mandrel 8 and die 9 and the other having a relatively long mandrel 8a and a corresponding die 9a provided with an electrical heater 10.
Patent GB-298646-A (GB)
Title: Arrangement for preventing the corona on the slot sleeves of high voltage electrical machines
IPC: H02K3/40
Filed: 1928-10-12
Abstract: 298,646. Siemens -- Schuckertwerke Akt.-Ges. Oct. 13, 1927, [Convention date]. Drawings to Specification. Coils; insulation.-To prevent the occurrence of " corona " in a high-voltage machine, the insulation where it projects from the slot is covered with a metallic coating connected to the armature body, the length, thickness and specific resistance of which are so chosen that the potential difference between the end of the coating and the copper winding is below the " corona " limit.
Patent GB-1508412-A (GB)
Title: Oil cooled piston
IPC: F16J1/02
Filed: 1976-07-15
Abstract: 1508412 Pistons CATERPILLAR TRACTOR CO 15 July 1976 [12 Nov 1975] 29515/76 Heading F2T A piston having a crown 50 and a skirt 62 pivotally joined by a gudgeon pin 40, is characterized by an annular imperforate lubricant channel 66 in the upper face of the skirt 62, the arrangement being such that in use lubricant supplied originally by a fixed nozzle 26 drains from the inside of the crown 50 into the channel 66 and can then cool the piston ring lands 52 by splashing.
Patent GB-909030-A (GB)
Title: Improvements in or relating to variable electrical equalisers
Inventor: INGRAM DEREK GEORGE WOODWARD
IPC: H04B3/14
Filed: 1961-08-16
Abstract: 909,030. Variable equalizers. GENERAL ELECTRIC CO. Ltd. Aug. 16, 1961, No. 29574/61. Addition to 903,691. Class 40 (4). A variable equalizer comprising variable resistances R 11 , R 14  whose product is required to be constant and equal to R 0 <SP>2</SP> where R 0 =R 18 , 18 being the terminating impedance of the network, contains a bridge network of which resistors 8, 18 are in opposite arms and R 11 , R 14  are in the other opposite arms. Resistor 8 also has valve R 0  so that R 11 .R 14  = R 0 <SP>2</SP> if the bridge is substantially balanced. The diagonals of the bridge are connected to the input and output of amplifier 25 so that a low-frequency oscillator is provided if the bridge is unbalanced. This oscillation feeds amplifier 39 whose power output provides heater current for the thermistor 12 whose resistance R 11  is thus varied in such a manner as to move the bridge nearer to the balance point and so maintain the required resistance relationship, despite variations effected in the thermistor R 14  by a pilot current. In a modification, the bridge may be energized by D.C., the unbalance current modulating an oscillator whose output heats the thermistor 12. Specification 873,786 also is referred to.
Patent GB-426773-A (GB)
Title: Improvements in or relating to the production of reinforced floating concrete structure
IPC: B63B9/06
Filed: 1934-10-18
Abstract: 426,773. Casting floating concrete structures. VARNI, A., Pallanza, Italy. Oct. 18, 1934, No. 29856. [Class 113 (ii)] [See also Group XXI] Floating structures of elongated form are cast on the surface of the water by the use of moulds by means of which such a structure may be lengthened progressively. Fig. 1 shows in cross section a concrete pontoon-like structure consisting of side compartments 1, 2, a flooded chamber 7, and a space 6. It is reinforced by ribs 9, 10, by transverse walls, and by struts 18, and has manholes 17 and other accessories. This is cast in a four-part mould one part of which, shown in Fig. 4, consists of a platform 12<11> supported by two floats 14, with side walls 12<1> which form the sides of the mould, the parts 12<11>, 12<1> being connected by hinges 12<111>. A structure such as is shown in Fig. 1 is cast in four such moulds joined end to end, the ends of the four associated moulds being closed by caisson-like doors and supplementary partitions. When the concrete has set, the two centre moulds are removed by flooding in each of them one of the tanks 14, which sinks until the platform 12<11> is substantially vertical. The two centre moulds are then floated to the outer ends of the other two moulds, which are still in place, and are joined to them, leaving the central part of the cast structure water supported. Additional lengths of the structure are then cast, one at each end, the other two moulds moved out to the outer ends of the newly-cast length, and the process repeated until a floating structure of the desired length is obtained.
Patent GB-648443-A (GB)
Title: Improvements in hydraulically-operated crushers of reciprocating jaw type
IPC: B02C1/00
Filed: 1948-11-17
Abstract: 648,443. Jaw crusher. GAULDIE, K. Nov. 17, 1948, No. 29906. [Class 59] [Also in Group XXIX] A jaw crusher of the type in which power is hydraulically transmitted to the oscillating jaw by a ram operated by a power-driven plunger is characterized in that the ram is brought to rest at the end of its return stroke by hydraulic pressure and that compensation for leakage of working liquid from the hydraulic system is effected by adjustable means which controls the mean rate at which make-up liquid enters the system into equality with the mean rate at which leakage takes place from the system. A swing jaw 12 of a jaw crusher is operated by a ram 14 reciprocated hydraulically in a chamber 15 by a driven plunger 16. Leakage from the hydraulic system passes through pipes 19, 20 to a sump 21 from which make-up fluid is pumped by a low-pressure pump 22 through a regulating valve 23 to the hydraulic chamber 15. The valve 23 includes Fig. 2, a regulating needle 28 freely movable in the closing direction, a dashpot 30 which constrains the needle to move slowly in the opening direction, and a spring 32 which tends to move the needle in the opening direction. A non-return valve 36 between the needle valve and the hydraulic chamber 15 permits of make-up fluid supplied through a port 29 in the casing of the valve 23 entering the hydraulic system only during the return stroke of the ram 14, when the pressure in the system is low. Adjustably secured to a tension rod 18 in the movable jaw 12 is a tappet 26 which, when the crusher is in normal operation, just touches the spindle 27 of the needle 28 at the limit of the tappet's forward stroke to move the needle 28 slightly in the closing direction, at all other times the needle being moved slowly in the opening direction by the spring 32, so that when the make-up liquid introduced equals the leakage from the system the needle 28 will ,oscillate very slightly about an equilibrium position. A relief valve is included in the system to allow for escape of liquid when uncrushables enter the crusher the liquid being rapidly replaced through the regulating valve. The tappet may be arranged to operate the regulating valve at other settings than a closed jay setting; for example, the valve may be of a normally closed type opened by the tappet when the jaw is at the backward limit of its stroke, or, as disclosed in the Provisional Specification, the valve may be operated by lost-motion tappet mechanism' at the mean position of the jaw. To avoid possible damage the diameter of the outlet port 39 of the regulating valve slightly exceeds the diameter of the needle. According to the Provisional Specification the valve body may be mounted adjustably on the fixed frame of the crusher to vary the setting of the swing jaw.
Patent GB-672769-A (GB)
Title: Improvements relating to fire-extinguishing installations
IPC: A62C5/00
Filed: 1947-11-10
Abstract: 672,769. Making foam. PYRENE CO., Ltd., and BEDFORD, H. E. Dec. 10, 1948. [Nov. 10, 1947] No. 29911/47. Class 47 (ii). The means for the initial production of air foam in an installation in which water is supplied by a pipe 14 from a pump comprises a closed tank 1 containing water which is forced by carbon dioxide &c. from cylinders 2 through a Venturi device 11 to draw in stabilizer from a tank 3 and thence to a foam generator 15. The carbon dioxide &c. is released by piercers and passes through a throttling orifice 8. Specification 403,291 is referred to.
Patent GB-159607-A (GB)
Title: Improvements in or relating to magneto-starters
IPC: F16D5/00
Filed: 1919-12-01
Abstract: 159,607. Stanfield, J. R. M. Dec. 1, 1919. Magnetos, driving. - Trip or accelerating- mechanism for actuating the ignition magneto of an internal-combustion engine at starting comprises a disc-like member B fixed to the magneto shaft A and connected to a dished driving-member C through a spring D; the inner end D<1> of the spring is fixed to the hub C<1> of the member C while the outer end engages with a pin B<3> on the member B. The spring also has a projecting portion D<2> which yieldingly presses a pin C<2> on the member C against the pin B<3> and constitutes a yielding form of coupling for normal driving. As the engine is cranked round, the disc B is turned until a fixed pawl E drops into a notch B<4> in its periphery; this holds the disc B against further rotation, and, as the member C continues in its rotation, the pin C<2> forces down the projection D<2> and leaves the pin B<3> until a cam C<3> on the member C lifts a pin E<2> on the pawl E and thrusts the pawl out of engagement. The tension of the released spring D then causes a rapid movement of the disc B and magneto shaft A, the projection D<2> cushioning the subsequent impact of the pin C<2> with the pin B<3>. The pawl is thrown out of action as soon as the engine has started. A further yielding lock or coupling for normal driving may be constituted by means of a separate, piece of spring F on the member C adapted to co-operate with a pin G on the member B; or a spring such as the spring F with its projection F<1>, may cooperate with the pin B<3>.
Patent GB-858274-A (GB)
Title: Vehicle suspension checking device
IPC: B60B35/10
Filed: 1955-10-20
Abstract: 858,274. Road vehicle suspensions. HUMBER Ltd., and WILLS, R. D. Jan. 11, 1957 [Oct. 20, 1955], No. 29978/55. Class 108(2). A rig for use in checking the geometrical relationship between parts of a motor vehicle front suspension comprises a support structure 6, 7 simulating the parts of the vehicle framework to which the suspension is attached and adapted to support the suspension (e.g. without wheels attached) in the normal attitude for a horizontal vehicle, and means for measuring the inclination of the wheel axes when in different predetermined steering positions thereby to determine the angle of camber and/or king pin inclination and/or castor. In the example shown the cross-bar 3 of a suspension comprising wish-bones 1, 2, and helical springs 4 is offered up to pre-set attachment points on bars 7 supported by a tubular frame. The springs 4 are compressed a predetermined amount by means of distance pieces 8, and nuts 10 on threaded rods 9. A dummy track rod 12 of the correct length is attached to the steering arms 13, 14. Correct positioning of these arms is checked by means of movable gauges 18, 19. The castor and camber angles and king pin inclination are measured by means of suitable gauges 24, attached to the wheel or wheel axle 25, readings being taken in the central and 20 degrees inclination positions as indicated by a pointer 21 and a scale 20 on the track rod 12.
Patent GB-834034-A (GB)
Title: Two-stroke internal-combustion engines employing rotary valves
IPC: F01L7/12
Filed: 1956-10-02
Abstract: 834,034. Valves. NOVOTNY, B. Oct. 2. 1956 [Oct. 12, 1955], No. 29997/56. Class 7(6) The inlet to a crankcase is controlled by a rotary valve formed by a pair of crank webs 1 provided with control recesses 2, the inlet port being formed in an insert 3 and divided by a partition 5 extending into the space between the webs 1. The insert 3 fits tightly against the rims of the webs 1 and the partition 5 forms a seal against the inner sides of the webs. Slight lateral clearance, equal to the axial movement of the crankshaft in its bearings, is provided for the insert 3.
Patent GB-828428-A (GB)
Title: Improvements in and relating to an adjustable motor-driven saw
IPC: B27B5/20
Filed: 1958-09-19
Abstract: 828,428. Sawing. GJERDE, A. Sept. 19, 1958 [Oct. 17, 1957], No. 30025/58. Class 145. A transportable saw bench, having a saw 37 adjustable about three mutually perpendicular axes similarly to that described in Specification 718,963, has a work table 8 which has a curved end and is carried by a braced tubular structure 2 with vertical members 4 at one side only so that, even when the saw mounting frame 31 is lifted about a horizontal pivot 32 for crosscutting until the raising handle 43 is above, the table, adjustment of the saw about a vertical pivot 21 is possible through at least 180 degrees. The pivot 32 is carried by a support frame 27 which is pivoted at 24 in a bearing ring of a disc 11  rotatably guided in the table 8 and having a saw slot 15. A yoke 20 interconnects brackets 18, 19 on the bearing ring with the pivot 21 and a screw 30 engages an arcuate part 29 of the yoke for clamping the saw in adjusted position about the pivots 24. A screw 39 engaging an arcuate rail 40 on the frame 27 and a screw 44 engaging the bearing ring secure the saw in adjusted positions about the axes 32 and 21, respectively.
Patent GB-935401-A (GB)
Title: Device for the perforation of the covering of smoking articles
IPC: A24F13/24
Filed: 1961-08-21
Abstract: 935,401. Cigarette perforators. E. PROBSTL. Aug. 21, 1961 [Aug. 24, 1960], No. 30061/61. Class 130. A device for perforating the cover of a cigar or cigarette 16 comprises a housing 10 in which the cigarette may be inserted so as to be rotatable therein, and a needle bed 21 arranged within the housing and rolling along the cigarette tangentially, needle points 22 perforating the cover of the cigarette. The needle bed, which may have a roughened surface, is fixed to endless belt 23 which runs around rollers 14. An operating knob 20 has a spindle passing through a slot in the housing and is connected to the needle bed 21. The cigarette may be rotatably held in the housing by a guide 18 or by rollers (Fig. 3, not shown). In an alternative embodiment, needle beds are arranged on both sides of the housing (Fig. 5, not shown).
Patent GB-602710-A (GB)
Title: Improvements in or relating to anchors
IPC: B63B21/24
Filed: 1945-11-10
Abstract: 602,710. Making anchors. PRESTON, Ltd., I., and PRESTON, F. R. Nov. 10, 1945, No. 30076. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIII] Uniting by fusion.-A steel anchor is formed with its flukes c separate from and rigidly mounted on the arms b of the bow a by means of longitudinal slits in the parts c<SP>1</SP> which are then fitted over and welded to the arms b as shown at e in Fig. 3. The bow a is pivoted in a fork formed in the forged steel shank by flame-cutting.
Patent GB-427562-A (GB)
Title: Improvements in or relating to the manufacture of rubber compositions from latex andlike aqueous rubber dispersions
IPC: C08C1/14
Filed: 1933-10-30
Abstract: An insoluble oxide, such as that of magnesium, calcium, or barium, capable of reacting with water, is added to latex or the like, the latex s coagulated, and hydration of the oxide is allowed to proceed in the wet coagulation until a desired degree of hardness is obtained; whereupon the coagulum is dried if necessary.  The oxide may be introduced in the form of a dispersion, which may contain a dispersing agent such as an alkali salt of a sulphonated fatty acid, as sodium cetyl sulphonate, to inhibit flocculation.  An additional soluble coagulant is preferably added to produce a tough coagulum. The action may be expedited by raising the temperature.  According to an example, 500 grams of 60 per cent latex has added thereto 5 grams of an accelerator, and 10 grams of sulphur in a 5 per cent solution of glue.  17,5 grams of zinc sulphate solution containing ammonia is added, and finally 50 grams of magnesium oxide freshly suspended in 35 grams of a 2 per cent solution of sodium cetyl sulphonate.  The mix which would gel at room temperature in 1/2 hour, is heated to 75 DEG  C. for two hours.  The coagulum is washed, vulcanized for 1 hour at 100 DEG  C. and dried.
Patent GB-505001-A (GB)
Title: Improvements in spindle apparatus for spinning flax or other fibres
IPC: D01H1/241
Filed: 1938-10-18
Abstract: 505,001. Spinning Bax &c. PATTERSON, J. Oct. 18, 1938, No. 30120. [Classes 120 (ii) and 120 (iii)] Spindle apparatus for spinning flax or other fibres comprises a driven spindle mounted in upper and lower bearings in a tube A carried by a lifting- rail B, a ring flyer mounted in ball bearings carried by a fixed rail C, and a dragged bobbin K mounted on the spindle and supported by the tube A, the base of the bobbin and the drag means applied thereto being adapted to pass through the ring flyer. The ring flyers and spindles are respectively driven from two rollers h, e, and the tube A carries a pulley D to guide the spindle-driving belt. The lifting-rail B is suitably guided by vertical rods N, and is operated by levers P from a shaft p actuated by any suitable building- motion, balancing means comprising a weighted arm R being provided. The flyers are provided with suitable hand or foot operated brakes, those shown comprising seissor arms m<1>, m<2>, Fig. 7, with co-operating pin-and-slot mechanism m<5>, m<6>, m<7> so that the first part of the closing movement is rapid and the final grip is " self-held." The bobbins are provided with extensions k<1> below the bottom flange engaged by adjustably weighted brake levers l pivoted at l<1> to the tube A or by adjustable spring devices, or the bases of the bobbins may be sufficiently long to project beneath the flyers at the top of the lift and provided with a groove for a drag cord, and such extension of the base may be separate from the bobbin- and coupled thereto by a suitable connection. Instead of being carried by the tube the spindle bearings may be mounted in two coupled rails, the lower carrying footstep bearings and the wharls being fixed or splined to the spindles between the rails. A longer bobbin than usual may be used, and the cop may be parallel between flanges, tapered at each end, or parallel to a bottom flange and tapered at the top, the last being preferable owing to the increased length.