baber/WOPTO huggingface dataset:
Patent GB-652871-A (GB)
Title: Improvement in cutting machines
IPC: B23D47/08
Filed: 1947-07-17
Abstract: 652,871. Sawing; severing by grinding. ROCKWELL MANUFACTURING CO. July 17, 1947, No. 19185. Convention date, July 18, 1941. [Classes 60 and 145(ii)] A cutting machine of the type in which a rotating cutter and a driving motor connected thereto are mounted on a frame pivoted for movement in a vertical plane for bringing the cutter into cutting relationship with the work, has the motor so located with respect to the pivot that it tends to overbalance the cutter and rock it away from the work and comprises a torsion spring coaxial with the pivot counterbalancing such tendency. The machine comprises a motor base 3 mounted on a shaft 4. the motor 5 driving a metal-cutting saw 7 through a belt drive within the guard 9. The saw blade is moved within the guard 8 by the lever 11. and in the cutting position projects through a slot 15 in a circular insert 14 rotatably mounted in the machine base 1. A movable fence, in two sections 20, 21, guides or jigs may be secured to the base 1 by means of slots 22, 23. The weight of the motor and base 3 is counterbalanced by a helical spring 24, one end of which engages an aperture 26 in a stationary part of the machine, and the other end being engaged in an aperture 29 in a collar 30 on the shaft 4. The tension of the spring 24 may be adjusted by turning the shaft 4 in its bearings and then tightening the set screws 35, 36; roller bearings 40, 41 are provided. Coolant may be fed to the cutter from a container 52, Fig. 2, having a shut-off valve 53, through a tube 60 discharging into a chamfered groove 50 in the flange 44, which with another flange 43, both undercut, is freely supported on the shaft 6 and contacts the blade 7, radial grooves being provided in the flange 44. In a modification, Fig.4,coolant passes through passages 67, 68 in a flange 65 to opposite faces of the blade. In a further form, Fig 5, coolant flows through a tube 72 into a cavity 74 in the shaft 6 and thence through apertures 76. 77 to radial passages formed by grooves in the flanges 75. A clamp, Figs. 12 and 13, for holding the stock to the fence and table comprises a lever 96 having secured thereto a cam 101 contacting a lever 105 secured to a rod 106 having a keyway 109 in which engages a screw 111 threaded in a lever 112 having a threaded bore 114 carrying a clamping screw 115. In a further modification, the machine has an abrasive cutter to which a coolant is fed by means of a branched tube.
Patent GB-634414-A (GB)
Title: A process for the manufacture of dihalides of aliphatic mono-olefins
IPC: C07C17/02
Filed: 1947-07-18
Abstract: A dihalide of an aliphatic, normally liquid mono-olefin is prepared by contacting such an olefin with a free halogen in a liquid medium in the presence of a small proportion of titanium tetrachloride.  The process is effected as described in the parent Specification.  In examples, apparatus of the kind referred to in the parent Specification is used for chlorinating hexene or heptene, titanium tetrachloride being introduced in dichlorhexane or by entrainment in the chlorine.
Patent GB-259337-A (GB)
Title: Improvements in valves
IPC: F16K3/12
Filed: 1925-07-30
Abstract: 259,337. Mitton, E. J., and Chadderton, E. July 30, 1925. Lift-valves; sliding valves; seats.-In a screw lift or a sliding valve the seating is formed in or on a frusto-conical block 17, ribs 1 and 4, inserted into the valve casing from the under side and forming therein a tight joint, the block being retained by a separate cover 15 which is recessed to engage a transverse rib 13 on the block to prevent its rotation. The valves are shown with a one-piece body with the operating nut carried in a bridge arrangement. In the casing of a lift valve, as shown in Fig. 1, the valve member is guided by upstanding fingers 7 on the seating block. In the sliding valve shown in Fig. 4 the seating block is formed at the part 29 to act as a stop abutment for projecting fingers 28 formed on the valve coupling member 27 which locate the closed position of the valve.
Patent GB-260949-A (GB)
Title: Improvements relating to thermostatic electric switches for controlling refrigerating systems
IPC: F25D29/00
Filed: 1926-08-04
Abstract: 260,949. Kucher, A. A. Nov. 4. 1925, [Convention date]. Thermostats. - A thermostatic switch for compression or absorption refrigerating machines employed in connection with refrigerating-chambers comprises a capsule 15 formed between a dished diaphragm 12 and a casing 13 and containing a medium such as water, a mixture of alcohol and water, or calcium-chloride, and water, which congeals and expands the capsule at the lower limit of temperature to actuate a switch 16, which may be of the tilting mercury vessel type, to break the circuit of the driving-motor or of the heating- element of the refrigerating- machine, the diaphragm flexing back of itself when the liquid melts at the upper limit of temperature. The switen may be mounted to rock about a bridge piece 17, and the diaphragm is provided with a projection 21 to engage the switch. The latter is accommodated within a cover member 11, Fig. 2, the leads 18, 18' being connected to terminals 19, 19<1> held between the cover and base. The thermostatic device may be placed on or otherwise in thermal contact with the wall of an evaporator within the refrigerating- chamber, or its distance therefrom may be adjustable to vary the time required to freeze or melt the medium in the capsule and thus the, operating and idle periods of the refrigerating-machine which it controls. Specification 210,452 is referred to.
Patent GB-824666-A (GB)
Title: Steam trap
IPC: F16T1/16
Filed: 1956-06-22
Abstract: 824,666. Steam traps. ANDERSEN, K. June 22, 1956 [June 22, 1955; Dec. 8, 1955; May 7, 1956], No. 19344/56. Class 64(2) A steam trap comprises an auxiliary chamber 4, Fig. 1, in communication with a main chamber 1 through which the condensate passes, the contents of the auxiliary chamber being adapted to influence thermally a member controlling the discharge of condensate. The chamber 1 has a condensate outlet 16 controlled by a valve 9 which is operated by a bimetallic element 13 and provided with a balancing piston 10. When the condensate has filled the chamber 4 around which a coolant may be circulated it cools rapidly due to the provision of fins 5 and the element 13 opens the valve 9. The free end of the piston 10 is sealed by a bellows and the valve 9 co-operates with a seat having a screw-threaded adjustment. An adjustable compression spring is interposed between the valve and the element 13 which may be pivoted at its upper end and provided with an extension resting against a spring to protect it from fatigue. Fig. 2 shows a modification in which bimetallic elements 36 and 43 control slide valves 38 and 42 respectively. A.float valve 46 mounted in a screen or cage 48 prevents complete emptying of the chamber 40 while a further float valve 51 prevents condensate from flowing through a steam transfer pasage 49. The element 43 prevents the operation of the trap being affected by external temperature conditions. In Fig. 3, an auxiliary chamber 56 provided with fins 64 has a supply passage 57 and a drain passage 58 leading to a condensate discharge passage 55 which is controlled by a float valve 66 and a bellows-sealed thermally responsive valve 63. When the trap is put into operation, the valve 66 is lifted by its float 67 until at operating pressure the condensate collected is less than that discharged and the passage 55 is again closed by the valve 56. Condensate entering the chamber 56 causes the valve 63 to close until sufficient condensate 'has accumulated to again lift the valve 66 to open the passage 55 and close the passage 57 so. that the. valve 63 is also opened by the cooling of the cham-. ber 56 and the condensate can escape.
Patent GB-571766-A (GB)
Title: Improvements in or relating to cutting machines for cloth
IPC: B26F1/38
Filed: 1943-11-20
Abstract: 571,766. Machinery guards. BELLOW, A. Nov. 20, 1943, No. 19427. [Class 80 (iv)] When it is necessary to change the knives in a cloth-cutting machine driven by an electric motor, it is often necessary to rotate the mechanism by hand to bring the knives to a convenient position. For this purpose a knob 3 is provided on the end of the armature spindle 4, but this knob when exposed and rotating at a high speed constitutes a source of danger and, according to the invention, a cap 1 is provided which is adapted to cover the knob. This cap may be detachably secured to the machine frame by clips, or may be pivoted at 2 and connected by linkwork 5, 6, 11, 9 to the push 7 of the starting switch 10 of the motor so that, upon closing the switch, the cap is brought over the knob and vice versa.
Patent GB-291636-A (GB)
Title: Improvements in vehicle lamps
IPC: F21V19/00
Filed: 1927-07-22
Abstract: 291,636. Heath & Sons, Ltd., S., Tongue, A., and Mason, A. E. July 22, 1927. Holders.-A holder which enables the bulb filament to be focused with respect to the reflector 3 in a vehicle lamp from the front of the lamp comprises a bulb holding socket which is rotatable to effect its axial adjustment, and plunger contacts constructed to allow sufficient endwise movement to maintain contact throughout the range of focusing adjustment. In the construction shown in Fig. 1, the socket 9 has a screw-threaded engagement with a tube 18 secured to the back of the lamp and containing the plunger contacts. As the socket is adjusted along the tube by rotating it, a detent pin carried by a spring ring 20 holds the socket in the positions in which the plungers contact with the contacts of the bulb 10. In the construction shown in Fig. 4, the socket has a screw-threaded connection with a tube 24 fixed to the lamp reflector 25, and is held in the adjusted position by a spring detent 33 engaging in an axial groove in the screw-thread 32. The contact plunger 29 is carried by a block 26 in the rear end of the socket, and is provided with a wide disc 28 to prevent its ejection therefrom. A spring 30 fixed to the back of the lamp maintains the contact of the plunger 29.
Patent GB-516297-A (GB)
Title: Improvements in and relating to devices for anchoring the end of an electric cord toa portable piece of electric apparatus
IPC: H01B17/58
Filed: 1938-06-30
Abstract: 516,297. Electric conductors ; mechanical couplings for cable or wire sheathing. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1938, No. 19446. Convention date, July 1, 1937. [Classes 36 and 38 (i)] Means for anchoring the end of an electric cord to a portable electric apparatus, e.g., to the tubular handle 2 of a vacuum cleaner, comprises a plate 9 carrying the switch 14 and adapted to be secured to the handle 2, or like part, by screws 10, the plate having a non-circular aperture 11 adapted to receive a similarly shaped head 24 on a curved sleeve 20 of rubber &c. moulded on or cemented to the cord 7 and provided with a flange 23; the sleeve is held in place by a yoke 27 engaging grooves in the sides of the head 24 and provided with an upturned finger 28. One screw 10 may hold in place a hook 5 for supporting the end of a vacuum cleaner bag.
Patent GB-680679-A (GB)
Title: Improvements in or relating to an arrangement for the self-centering, magnetic, partial load relief of upright measuring apparatus and in particular meters
IPC: F16C39/06
Filed: 1950-08-03
Abstract: 680,679. Magnetic bearings. SIEMENSSCHUCKERTWERKE AKT.-GES. Aug. 3, 1950 [Sept. 8, 1949], No. 19465/50. Class 12 (i). The weight of a meter shaft 4 is partially relieved by a self-centring magnetic bearing which comprises a fixed soft iron cylinder 6, and a cylindrical permanent magnet 7 which is attached to the shaft 4 and is provided with a soft iron ring 8. The shaft 4 is also provided with a bush through which extends a fixed needle carried by a threaded bush 2. A similar magnetic bearing may be attached to the lower bearing of a meter shaft, Fig. 3 (not shown), so that as the lower bearing is adjusted the magnetic bearing is also moved. In this construction the outer soft iron cylinder is flanged. In a modification the magnetized inner cylinder is fixed and the soft iron cylinder is secured to the shaft. The magnet 7, Fig. 5, may have two pole flanges 8, 80 overlapping flanges on the cylinder 6. In each construction the soft iron cylinder 6 serves to screen the magnet 7.
Patent GB-440570-A (GB)
Title: Improvements in or relating to the control of electrically propelled vehicles
IPC: H02P3/06
Filed: 1934-07-02
Abstract: 440,570. Master control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and CANSDALE, J. H., 8, Elsee Road, Rugby. July 2, 1934, No. 19495. [Class 38 (iii)] Regenerative and non-regenerative braking.- Regenerative braking of a vehicle motor A is initiated by return movement of a controller M from its "on" position, and upon further return movement rheostatic braking is automatically substituted by means of a relay having a shunt coil 9a de-energized at a return position of the controller and a coil 9b in the motor armature circuit, this relay, when both its coils are de-energized, effecting the energization of a second relay 10a which operates to connect the motor shunt field z directly to the supply, to cause the connection of the motor armature in a closed circuit through a resistance, and to disconnect the controller contacts from the supply except for a circuit including the actuating coil 10a of the second relay. Upon movement of the controller M from an " off " position contacts 21-28 are operated in sequence to cut out series resistances R1-R3 in steps and insert shunt field resistances r1-r3 in steps, thereby accelerating the motor A to full speed. The closure of contact 24, in addition to cutting-out a step of series resistance, also energizes a coil 9a of a relay having normally closed contacts 9x, and a contactor 5 closed by operation of the contact 25 maintains itself by contacts 5x over the first contact 21 of the controller M. When the controller is returned to its off position, the shunt field of the motor is strengthened by the sequential closure of the contacts 28-26, and the motor is regeneratively braked. When the contact 24 is opened the coil 9a is de-energized but the contacts 9x remain open until the regenerative current falls sufficiently for the series coil 9b of the relay to allow the contacts to close, whereupon the relay 10a is energized. This relay 10a opens contacts 10x2 to de-energize all the resistance and line contactors controlled by the controller M except contactor 5. The relay 10a also closes contacts 10x1 and 10x3, the former closing a line circuit for the shunt field and the latter causing the energization of a contactor 11a when a contact 1x of the line contactor has opened. The contactor 11a closes to complete a rheostatic braking circuit for the motor.
Patent GB-699935-A (GB)
Title: Improvements in folding tables
Filed: 1951-08-20
Abstract: 699,935. Folding tables. DOHERTY & SONS, Ltd., E., and DOHERTY, H. Aug. 20, 1952 Aug. 20, 1951], No. 19612/51. Class 52(iii) [Also in Group XXV] A folding table has legs of rod or wire bent to U or W form, the upper ends of the legs being bent 90 degrees out of the plane of the U or W and the outermost ends being hingedly secured, on the same transverse axis, to the underside of the table top. As shown, bent portions 7 at the ends of resilient metal legs 5 are seated in clips 14 and in grooves 10 in pivot supports 9 screwed to the under-surface of a table top 4 respectively. A cam surface 13 on the support 9 retains the legs, when in the folded position, close to the table top and, during the pivoting movement to extend the legs, engages the bent portion 6 and splays the leg outwards, the portion 7 sliding axially in the groove 10. On continued pivoting of the leg, the part 6 comes to rest against the underside of the table top and then snaps into a recess 11 in the pivot support. The legs are held in extended position by a flange 12. To fold the legs the part 6 is disengaged from the recess 11 by being pressed outwards. A pivot support may be provided at each end of each leg.
Patent GB-140847-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01P3/10
Filed: 1918-11-28
Abstract: 140,847. Matthewman, W., and Sandow, E. Nov. 28, 1918. Pistons, cooling; pistonrods; cylinders.-In a singlecylinder or tandem-cylinder internal - combustion engine, the pistons or pistons and the piston-rod slide on a central tube through which cooling water or air is circulated. In the arrangement shown in Fig. 2, the pistons b, b' and the piston-rod b' slide on a central tubular projecticn a<2> of the cylinder a. The fluid flows in either direction through a central tube k and the annular space between the tube k and the tube a<2>. In order to obtain an increased cooling offect, the tube a<2> may extend beyond the lower cylinder cover a'. Packing-rings are placed in the bores of the piston b, of the intermediate cover a', and of the cuter cover a<4>. The tube a<2> may communicate. with the cylinder jackets, as shown. Where air cooling is employed, the tube a<2> may communicate with the atmosphere, and radial webs may extend between the tube k and the tube a<2>. In the case of pistons of large diameter, a number of piston-rods may be employed, each sliding un a hollow tube a<2>.
Patent GB-746247-A (GB)
Title: Vaporizer electric heating element
IPC: F24H1/00
Filed: 1954-07-05
Abstract: 746,247. Electrically heated vaporiser. KATZMAN, M. July 5, 1954, No. 19621/54. Class 39(3).. A vaporiser for medicants has a housing with a discshaped insulating cover 8 through which project electric terminal plugs 13 on to which are screwed electrodes 18, 19 of inverted L-shape surrounded on three sides by a ceramic casing 16 which is supported by the outwardly bent upper flanges of the electrodes projecting into recesses therein. The casing 16 has in a side wall an aperture 25 for flow of liquid to be evaporated by current passing therethrough between the copper electrodes. The cover 8 is held in place by a ring engaging its edge and threaded on to the neck portion of the housing, a circular washer 9 being interposed. The ceramic cover 8 is apertured to allow discharge of vaporised medicant through a spout.
Patent GB-461119-A (GB)
Title: Improvements in and relating to temperature controlled electric switches
IPC: G01K1/24
Filed: 1936-07-15
Abstract: 461,119. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd. July 15, 1936, No. 19642. Convention date, July 16, 1935. [Class 38 (v)] A thermal switch for controlling the temperature of an electrically-heated oven or other electrically-heated device comprises a rod 29 movable by a device responsive to the temperature of the oven to control the movement of an arm 47 carrying a contact member 44 co-operating with fixed contacts 43, the arm 47 being in the form of a bimetallic strip to compensate for movements of the rod caused by ambient temperature changes. In the construction shown, the rod 29 has a head 30 screwed into a stud 21 mounted in a bellows 16a, the stud and bellows being normally moved towards the left by a spring 25. The bellows is mounted in a cup 18 connected by a tube 17 to a bulb 16 mounted in the oven or other device whose temperature is to be controlled, the bulb, tube and cup being filled with liquid having a high coefficient of expansion. The arm 47 is carried by one arm of a bent lever 48 pivoted at 51, the other arm of the lever being engaged by a compression spring 53 which tends to move the lever to open the circuit at the contacts 43, 44. This movement is normally prevented by a lever 54 pivoted at 55, one arm of the lever engaging a stud 57 carried by the lever 48, while the other arm of the lever 54 engages a shoulder 42 on the rod 29. When the temperature of the bulb 16 exceeds the predetermined maximum, the expansion of the liquid moves the bellows and the shoulder 42 to the right, thereby permitting the stud 57 to move to the left. In order to give a snap action to the movement of the switch arm 47, a U-shaped spring 66 is provided, one end of which bears on the movable end of the arm 47, while the other end engages a fixed pivot 67, substantially in the manner described in Specification 280,323, [Class 38 (v)]. The righthand end of the rod 29 is slidably mounted in a sleeve 31 so as to be rotatable with the sleeve, and the latter is connected to an adjusting knob 58 by means of which the device can be set to operate at different temperatures.
Patent GB-291040-A (GB)
Title: Apparatus for massage
IPC: A61H15/02
Filed: 1927-07-25
Abstract: 291,040. Sick, G. May 25, 1927, [Convention date]. Addition to 280,168. Massage; heating and cooling appliances.-In a massage roller provided with internal means for raising or lowering the temperature, and with two handles, the outer wall is arranged on a member of cage form, and is detachable and interchangeable. In the form shown a roller turning .on an axle A fitted with handles B comprises a member E of cage form carrying a detachable outer cylinder F, the surface of which may be smooth or be formed with irregularities such as holes, projections, grooves, and the like. The cylinder F is secured in place by a threaded ring F<1>. An electric heater D is arranged within the roller. Alternatively, the roller might be heated by a slow combustion burner, a fuel briquette, hot water, or chemical products or might be cooled, or means within the roller may be withdrawn, brought to the desired temperature, and re-introduced. The Specification as open to inspection under Sect. 91 (3) (a) states also that the handles B may be replaced by a single handle at one end of the roller or by a forked handle. This subject-matter does not appear in the Specification as accepted.
Patent GB-842686-A (GB)
Title: Feeders for powdered substances, in particular pulverised coal
Inventor: TANIYAMA TOSHIO
IPC: B65G47/00
Filed: 1958-06-20
Abstract: 842,686. Feeding powdered coal. SUMITOMO CHEMICAL CO. Ltd. June 20, 1958, No. 19774/58. Class 78 (1). Powdered coal is fed by screw 2 from hopper 1 to fall down stationary cylinder 5 on to rotary table 4 whence it is discharged down shoot 8 by scraper 7. Cylinder 5 is formed with the curved lower edge shown in Fig. 2 so as to form a discharge port 10 of varying height, and excess powder in the cylinder falls over step 9 formed in the cylinder above the point where the discharge port has minimum height so that the discharge is made uniform. The cylinder is adjustable at 6 and its inner surface may be lined with metal net to make it rough.
Patent GB-530941-A (GB)
Title: Improvements in or relating to belt shifter mechanism
IPC: F16H7/22
Filed: 1939-07-07
Abstract: 530,941. Operating belt-forks. LINDSAY, Ltd., H., and LINDSAY, H. July 7, 1939, No. 19782. [Class 80 (ii)] A belt fork 1 slides on a bar 2 and is connected by a rod 3 pivoted to a block 9 pivotally mounted on a pin 4 adjustably carried by a crank 5. The boss of the crank is toothed to engage teeth on a segment 15 on an actuating lever 14 pivoted at 13 to a bar 12 depending from and secured to the bar 2. In the two extreme positions of the crank, the rod 3 rests on the crank pivot 6 thus preventing further rotation. The weight of the lever 14 is balanced by a spring 17 connected to the crank-pin 4. As an alternative to intermeshing toothed gear segments, one segment may be plain and fitted with a length of pitch chain which engages teeth on the other segment; or the surface of the crank boss and the arcuate face of the segment on the hand lever may be interconnected by lapping chains or cords acting in both directions.