baber/WOPTO huggingface dataset:
Patent GB-682964-A (GB)
Title: Improvements in or relating to harpoons and like weapons
Inventor: PERITZ CURT
IPC: F42B30/14
Filed: 1949-11-07
Abstract: 682,964. Projectiles. WESTLEY RICHAR DS & CO., Ltd. Nov. 1, 1950 [Nov. 7, 1949; May 12, 1950], Nos. 28409/49 and 11880/50. Class 9(i) An electric whaling harpoon carrying a stop-plate to limit penetration a n d adapted to be fired from a gun has a tubular shank 10 of of tensile steel reinforced by a steel sleeve 11 and closed at the forward end by a cylindrical steel block 12 welded to the tube. The block has a screw-threaded recess in which fits an insulating brush 13'bored to receive a hollow steel stem 14 screwed into a cast or forged light alloy head 15 having a blunt circular nose in which is a partspherical depression 16. Four projections 17 are equally spaced round the nose. Welded to the stem is a collar 18 provided with three slotted lugs 20 in which are pivoted steel barbs or flukes 21. These barbs are normally parallel -to the stem but after penetrating a target, any pull on the harpoon causes the barbs to swing outwardly, the swinging movement being arrested by inclined faces 23 engaging with the inner surface of the slotted lugs. Penetration of the harpoon is limited by a stop-plate, 24 by which a cable 25 is attached. The stop-plate is a light-alloy casting having on one side a boss 26 through which the cable is threaded and anchored on the shank. The bared ends of the conducting wires are carried round the shank under a clip 30 on the stop-plate and into a rubber plug 31 having a push-fit in a bush 32 is closed insulating material. The bush 32 is closed at the rear and is secured in a boss 33 on the plate. A similar insulated wire 34 is inserted in a parallel bore in the plug 31 and the bared ends of the two wires are twisted together and abut a copper washer 35 backed by a fibre washer 36. The wire 34 is threaded through a steel tube 39 welded to the shank and passes thence through a bore 40 in the insulating bush 13 and its bared end is secured by a band 41 to the steel stem 14. The harpoon is fired from a spigot gun by fitting the shank over the spigot and firing a cartridge which is mounted in a steel tube having a sliding fit in the shank. The cartridge tube has a screw-threaded recess engaging a thread on the gun, while at the other end the tube abuts the steel block 12. The free end of the cable 25 is connected through a switch to a source of electric power and after a hit has been made, the switch is closed to electrocute the whale.
Patent GB-301610-A (GB)
Title: Improvements in pumps
IPC: F04B7/04
Filed: 1927-10-26
Abstract: 301,610. Jacobsen, O. A. E. Oct. 26, 1927. Single-acting suction-valveless piston pumps; valves, arrangement of.-A pump comprises two coaxial plungers B, C of equal diameters controlling respectively the inlet and delivery ports H, J. The plunger B is returned on the suction stroke by a spring G, and the plunger C is returned to close the port J by a spring F.
Patent GB-355550-A (GB)
Title: Hair curlers
IPC: A45D7/04
Filed: 1930-09-23
Abstract: 355,550. Hair - curling appliances. FULTON, N., 45, West 32nd Street, New York, U.S.A. Sept. 23, 1930, No. 28479. [Class 131.] A hair curler comprises a body part 10 and a flap 11 of flexible material such as fabric or soft leather provided at the upper edge with a hem 13 containing a wire 13 of flexible material, the body part 10 being provided at the lower edge with a hem 14 containing a flexible stiffening member 15 provided with tongues 16 which extend beyond the body part. The member 15 and tongues 16 may comprise one or more wires having a woven covering. In use, the body part 10 is applied to one side of the end of a tress of hair, and the flap 11 is bent over as shown against the opposite side of the tress to damp the hair ; the hem 14 is then rolled over the lower part of the flap 11 and the rolling continued until the tress is completely rolled, when the tongues 16 are bent over the outside of the roll.
Patent GB-734497-A (GB)
Title: Improvements in or relating to articles formed of high melting point polyamides
IPC: C09D5/23
Filed: 1951-12-05
Abstract: Machine parts, e.g. bearings, gears, rollers and cams, are made of a high melting polyamide containing from 0.25 to 5.0 per cent by weight of molybdenum disulphide.  Finely divided molybdenum disulphide may be incorporated in flake or granular nylon (e.g. polyhexamethylene-adipamide or sebacamide) by tumbling or by mixing the nylon with a dispersion of the sulphide, with subsequent drying. The resulting mixtures may then be melted and formed into the required machine parts.  Fillers, e.g. graphite, and antioxidants may also be added.
Patent GB-226008-A (GB)
Title: Manual fingering instrument for playing pianofortes and organs
IPC: G10C3/30
Filed: 1923-11-12
Abstract: 226,008. Moloney, P. J. Nov. 12, 1923. Pianofortes &c., vamping-apparatus for.-A device for playing chords on pianoforte or like keyboards consists of a bar A with fingers 16, 27, 14 arranged along two adjacent sides 10, 11 and the intermediate edge, in the order required to produce desired chords. The bar is held in the hands and rotated to bring the different sets of fingers into operation, the set along the intermediate edge being used, if desired, to play octave-notes simultaneously with notes played by fingers on the adjacent side 11. The recesses 29 assist to indicate the set of fingers employed. The fingers instead of being fixed may be mounted to slide freely in the bar; the requisite fingers of the device then require to be held down by the fingers of the user. In this form the user holds the bar by means of an adjustable crossbar, and a finger may be provided for each diatonic note.
Patent GB-509756-A (GB)
Title: Fuel injection apparatus for internal combustion engines
IPC: F02M57/02
Filed: 1937-10-20
Abstract: 509,756. Fuel-injection pumps. BISCHOF, B. Oct. 20, 1937, Nos. 28604 and 28605. Convention dates, Oct. 20, 1936 and April 5, 1937. [Class 102 (i)] [Also in Group XXVII] In an engine with fuel injection, a preliminary injection is made at a lower pressure than the main injection by an hydraulically-operated plunger 14, acting on the residual liquid in the pump discharge passages 12. The plunger 14 is acted on by a spring 19, which is weaker than the spring 10 acting on the discharge valve, and the lower surface of the plunger is exposed, through a passage 16, to the pressure in the main pump chamber 9. The injection-valve 38 is loaded by liquid in a chamber 39, supplied through passages 28, 29, 55, 56 which communicate with the suction chamber 7 in the lowest position of the main plunger 6. A throttling restriction is arranged between the passages 55, 56, in order to vary the loading with the speed. At the termination of preliminary injection the plunger 14 uncovers a recess 27 and a passage 54, through which the chamber 39 is put into communication with the pump chamber 9. The plunger 6 then covers the passage 16, and the main injection takes place with full loading of the valve 38. In a modification the passage 56 is dispensed with, and the communication between the chamber 39 and the chamber 9 is made through passages in the plunger 14.
Patent GB-373042-A (GB)
Title: Improvements relating to electrically heated boilers
IPC: F24H9/20
Filed: 1931-10-15
Abstract: 373,042. Snap-action switches for electrically-heated boilers. LOW, D. W., Merkland Works, Partick, Glasgow. Oct. 15, 1931, No. 28647. [Class 38 (v).] A switch for an electrically-heated boiler comprises a contact-carrying rod 3 which is moved into the circuit-closed position by a pushbutton 15 against the action of a spring 6 and there held by a float-controlled rod 7 engaging a notch 9 in the rod 3. The rod 7 is pivoted at 10 to a lever 9 which carries the float and is pivoted at 11 in a vapourtight manner in a gland in the wall of the boiler. When the level of the liquid falls the rod 7 is raised and releases the rod 3 which moves to open the switch.
Patent GB-679487-A (GB)
Title: Improvements in machines for feeding paper bag blanks and like sheets, to and from forming operations
IPC: B65H5/02
Filed: 1949-11-09
Abstract: 679,487. Endless conveyers. GRAF, P. Nov. 9, 1949. [Nov. 9, 1948] No. 28678/49. Class 73 (i). [Also in Groups XVI and XVII] In a machine for the manufacture of paper bags the blanks, e.g. of flat tubular form, with their axes at right-angles to the direction of conveyance, are fed between pairs of endless chain conveyers, each pair comprising one chain disposed above another to grip the blanks between them, and the chains of each pair being urged together at the gripping surfaces by spring-pressed pulleys bearing on the upper chains, adjustment to accommodate blanks of various lengths being provided by forming the machine substantially in two longitudinal parts, one slidable towards and away from the other under the control of an adjusting device while maintaining the drive of the one or more pairs of chain conveyers on each part. In the example the upper and lower endless chain conveyers at both sides of the machine are each subdivided into a short length 6<SP>1</SP>, Fig. 1, driving a longer length 6, the short lengths being driven by sprockets coaxial with gear wheels 12 driven by gear 11, and the coupling between the respective short and long lengths being effected by pairs of sprockets 12<SP>1</SP> mounted rigidly on sleeve-shafts. Driving tension is applied on the a,djacent co-operating parts of the upper and lower chains, flexing of the relevant part of the lower chains being prevented by sole plates 14 located below them, while the associated parts of the upper chains are tensioned by rollers 15 on spring-controlled bell-cranks. The longitudinal framework consists of girders 3, Fig. 7, of channel or other section supported on two spaced columns 1, 2 the upper faces of which are formed as slide tables whereby the framework on one side can be moved laterally relative to the other side by screw-threaded rods coupled together by a, sprocket chain and controlled by a hand-wheel. The driving pinion 11 on the adjustable side of the machine is driven by a pinion 9<SP>1</SP> mounted on a shaft 10 within the support 2 and of an axial length such that it does not become disengaged from its pinion 11 as a, result of lateral movement of that member and its supports.
Patent GB-939125-A (GB)
Title: Improvements relating to surge diverters
Inventor: FISCHER EBERHARD
IPC: H01T1/14
Filed: 1962-07-26
Abstract: 939,125. Surge diverters. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. July 26, 1962, No. 28784/62. Class 38 (4). A surge diverter comprises an arc gap device and a voltage dependent resistor mounted in series upon an insulating pin and held thereon against a pressure tending to remove them from the pin by a fusible link located at the free end of the pin. As shown, an are gap device 1 and a resistor 2 are mounted upon an insulating pin 6 which is attached to a terminal bolt 4 extending from an insulating housing 3. A flanged metal member 8 which serves as the other terminal of the diverter and which is soldered at 8<SP>1</SP> to a sleeve 7 fixed to the pin 6, holds the gap device 1 and the resistor 2 in position upon the pin 6 against the pressure of a spring 10 which also bears against the head of the terminal bolt 4. In operation, overloading of the surge diverter causes the resistor 2 to heat up; when a permissible temperature is exceeded, melting takes place at the soldered joint 8<SP>1</SP> and the members 8, 2, and 1 are stripped off the pin 6 by the pressure of the spring 10 whereby a disconnection is effected. The housing 3 may be at least partly transparent so that the stripped parts provide a visual indication of the state of the diverter. A sprayed or vapour-deposited metal layer may replace the sleeve 7. The fusible link may be provided directly between the resistor 2 and the pin 6, in which case the member 8 is not required.
Patent GB-1275747-A (GB)
Title: Improvements relating to hydraulic ram safety devices
IPC: F15B15/14
Filed: 1968-06-17
Abstract: 1275747 Mowers agricultural implements BOMFORD & EVERSHED Ltd and J V FOX 11 June 1969 [17 June 1968] 28793/68 Headings A1B and A1F [Also in Divisions Fl and F2] A single acting differential hydraulic ram piston 11 Fig. 1 having a rod 12 which extends through a gland at the fluid inlet end 13 of a cylinder 10 the other end 20 of which is closed is provided with a passageway 15 Fig 2 controlled by a non-return valve 17 which allows substantially free flow from the gland end to the closed end of the cylinder, and has a relief valve 18 which allows flow from the closed end at a predetermined high pressure. The cylinder is first charged with liquid admitted through inlet 13 and air is vented at 22. On pressurizing the liquid the piston 11 is fully extended to the left by virtue of its greater area facing the closed end of the cylinder and in the event of an external force tending to retract the ram fluid pressure is relieved from the closed end 20 of the cylinder 10 through the relief valve 18. The ram may serve as a strut holding the cutting unit of a flail type mower or it may support a mole plough or share.
Patent GB-598509-A (GB)
Title: Improvements in quick release devices for parachute harness and the like
IPC: B64D17/32
Filed: 1945-10-31
Abstract: 598,509. Parachute-releasing devices. QUILTER, J. R. C. Oct. 31, 1945, No. 28895. [Class 44] A quick-release coupling for parachute harness or the like comprises members 11, Fig. 3, and 12, Fig. 5, each attached to a strap or web. The member 12 is provided with cheeks 15 between which are pivoted two bellcrank elements 14. Between the outside faces 35 slides a cross-head 22 retained by springs 24 engaging with a slide 20 mounted between lugs 21 on the cross-head, the slide 20 itself being retained by contact with the bell-crank elements 14. The lugs 21 overhang the member 12 and carry by pivots 26 a pair of levers 25 having concave finger-grips at 27. On engagement of the members 11, 12. the cheeks 15 enter a socket 13, the bell-cranks being rotated by engagement of shoulders 18 with the mouth of the socket so that fingers 16 are caused to enter notches 17, the slide 20 being at the same time forced down by cam action until the shoulders 18 move into line with walls 19 on the slide. when the slide 20 can move up again to shroud the shoulders 18. The horned ends 28 of the levers 25 and tapered formation of the member 11 facilitate engagement of the parts. To release the coupling the levers 25 are first grasped and lifted, the cross-head 22 moving up with them against springs 24 so that the teeth 29 on the levers ride up the keeper faces 30 and over the top of the slide 20. The parts may be held in this position without fear of accidental disengagement, enabling the moment for final release to be conveniently chosen. The levers 25 are then pulled down, and with them the attached cross-head 22 and slide 20, the body of the member 12 being held meanwhile by the engagement of the fingers 16 of the bell-crank elements with the notches 17. When the bell-crank elements are no longer shrouded by the slide 20 they are rotated by the pull until clear of the notches 17. Instead of a bar the member 11 may be provided with a spring- guarded hook for attachment to an observer's harness. According to the Provisional Specification the pivoted ends of the levers 25 are mounted in slots in the member 12, the crosshead 22 being dispensed with. Specification 478,606 is referred to.
Patent GB-1478898-A (GB)
Title: Silicon carbide ceramic
IPC: F01D5/28
Filed: 1974-06-28
Abstract: 1478898 Sintered silicon carbide GENERAL ELECTRIC CO 28 June 1974 [24 Oct 1973]  28907/74 Headings C7A and C7D A sintered B SiC ceramic body containing a B containing material selected from B or B 4 C in an amount equivalent to 0À3-3 wt per cent B and 0À1 wt per cent C and has a density at least 85% of theoretical. The ceramic is produced from a dispersion of the SiC, B material and C which is shaped to form a green body and then sintered in an inert atmosphere such as A, He, N 2  and H 2  at 1900-2100‹C. Preferably a B doped SiC dispersion is first formed from a SiO 2  gel in a solution containing sugar and boric acid which is then dehydrated and heated in an inert atmosphere. A carbonaceous additive e.g. a novolak resin, a polynuclear aromatic hydrocarbon derived from coal tar or a polymer of an aromatic hydrocarbon is then added to the B doped SiC dispersion and the mixture is pyrolyzed to decompose the carbonaceous additive. Isostatic pressing or slip casting may be used to form the SiC body.
Patent GB-388701-A (GB)
Title: Improvements relating to paddle boats
IPC: B63H23/24
Filed: 1932-10-17
Abstract: 388,701. Paddle wheels. REBBECK, F. E., Queen's Island, Belfast. Oct. 17, 1932, No. 28919. [Class 114.] The wheels D are mounted on a common driving shaft C or on opposite ends of aligned shafts and one or more electric driving motors B are mounted on the shafts. These motors receive current from generators E driven by power units A which may be internal-combustion engines, steam reciprocating engines or steam turbines.
Patent GB-696739-A (GB)
Title: Improvements in or relating to bowls used in the treatment of fabrics
IPC: D06B23/02
Filed: 1951-12-12
Abstract: 696,739. Solid rollers. HOUGH, Ltd., R., BELLIS, N. J., BELLIS, S., and BELLIS, R. Dec. 12, 1951. No. 29055/51. Class 42 (ii). In the manufacture of a bowl for use in the treatment of cloth by a so-called wet process, in which a compressed mass of wood fibres in cylindrical form is rigidly mounted co-axially on a shaft, the fibres are thoroughly impregnated with a liquid wholly or largely consisting of water prior to their being mounted on the shaft and being subsequently compressed thereon. By wood fibre is meant wood which is shredded or otherwise broken into small strips or pieces and which can be compressed into a homogeneous mass. As shown, centrally-perforated cakes 11 of compressed, sub-stantially dry wood fibres are soaked in water, which may contain a preservative such as a formaldehyde preparation, are placed on a bowl shaft 14 against an end flange 16 and compressed axially ; further cakes are then added and further compression applied, until the bowl is of the required length when a further flange 16 is applied and the bowl surface machined to size. Each flange 16 is retained by half rings 15 which engage a groove 14b in the shaft and a recess in the flange.
Patent GB-844792-A (GB)
Title: Improvements in or relating to drive mechanisms for paper machine dryers
Inventor: HORNBOSTEL LLOYD
IPC: D21F7/02
Filed: 1957-09-16
Abstract: 844,792. Drive of paper-making machine dryers. BELOIT IRON WORKS. Sept. 16, 1957, No. 29144/57. Class 96. To maintain the required tension in a stretch WR of a paper web W being dried, the driving pinion 26 of a drum 17<SP>1</SP> in the lower tier of drying drums is connected by a bevel differential &c. gearing with a pinion 24 which drives the two preceding drums 16 and 16<SP>1</SP>. The speed difference between the drums 16 and 17<SP>1</SP> and therefore the tension at WR are controlled by a cone-pulley and belt drive acting on a central T-shaft of the differential gear. The roll 16 may be the last of one section of the dryer, and the roll 17<SP>1</SP> the first of the next section.
Patent GB-248475-A (GB)
Title: Improvements in means for the parallelization of textile fibres in machines for preparing same for spinning
IPC: D01G15/46
Filed: 1924-12-05
Abstract: 248,475. Laurency, G. C. Dec. 5, 1924. Carding-engines; drawing-frames.-In an arrangement for straightening and rendering parallel the fibres taken from the doffer of a carding- engine, the fibres are seized by a leather or similar covered roller A, Fig. 1, or a roller with a channeled surface, co-operating with a casing comprising a series of flexible blades a, held up and pressed against the roller by springs e. The fibres seized and passed forward have their rear ends combed by the doffer D. As they emerge at the point n they are combed by a card covered roller B rotating more quickly than the roller A. This roller is also provided with blades a. A further leather covered roller C is provided to draw the fibres from the roller B, and the drawing operation may be repeated as often as desired. The flexible blades a, Fig. 3, are arranged helically under the rollers. Where ring doffers are employed, the blades a, which are wider than the rings, are arranged at right angles to the axis of the roller. The roller B may be provided with a brush R to remove waste and dirt when necessary. Specification 18781/00 is referred to.
Patent GB-726902-A (GB)
Title: Improvements in or relating to snap action electric switches
IPC: H01H13/28
Filed: 1951-12-15
Abstract: 726,902. Press-button retractive switches. CRAIG & DERRICOTT, Ltd., and HULBERT, C. LACY-. Dec. 11, 1952 [Dec. 15, 1951], No. 29412/51. Class 38 (5) A snap switch intended to serve as a limit switch comprises a spring strip 23 loaded by a pair of tension springs 29 connected between cross-bars 28 fixed to the strip ends, the springs 29 lying one to each side of the strip (Fig. 2, not shown). The strip 23 is located by a pin 20 passing freely through a central aperture therein, one end of the pin being received in a switch operating plunger 25 and the other end being connected to a switch restoring plunger 19. The plunger 25 is slidable within a sleeve 36 itself slidable in a bush 15 and having a case-hardened head 39. A spring 42 within the sleeve 36 and acting on the plunger 25 is stronger than a spring 26 acting on the plunger 19 whereby on depression of the head 39 the sleeve 36 and plunger 25 move together and the plunger head 24 moves the strip 23 over-centre so that contacts 31 on the strip ends disengage the lower fixed contacts 33 and engage the upper contacts 33. On release of the operating force the spring 26 restores the switch. Should the head 39 be depressed sufficiently for head 21 of the plunger 19 to engage the plunger guide sleeve 17 the spring 42 permits relative movement between the parts 25, 36. To prevent vibration of the springs 29 lengths of plastic material, e.g. P.V.C. may be placed therein or therearound.
Patent GB-884001-A (GB)
Title: Improvements in or relating to breathing apparatus
Inventor: YOUNG DAVID HERBERT
IPC: A62B9/02
Filed: 1959-08-28
Abstract: 884,001. Respiratory appliances. KIDDE CO. Ltd., WALTER. Aug. 17, 1960 [Aug. 28, 1959], No. 29425/59. Class 81 (2). A face mask is fitted with a resiliently loaded inlet valve, which opens under predetermined inlet pressure, in addition to the customary diaphragm-controlled inlet valve actuated by inhalation of the user. The inlet through a union member 27 is normally sealed by a pad 36 carried in a hollow cylindrical member 29, mounted on a pressuresensitive diaphragm 6. Pressure above a predetermined level lifts this member clear so that gas passes through orifices 37 to the user. Normal operation of the valve on inhalation results from movement of the diaphragm 6 against the action of an adjustable spring 30. On exhalation, a flap valve 40 lifts clear of orifices 39 to allow exhaled gases to pass out to atmosphere. An additional feature consists in the tubular fitting 42 which is normally engaged over a cylindrical portion 43 on the inlet 27. It is moved clear of this, towards the end of a deep inhalation, to admit ambient air and thus avoid waste of oxygen in the dead space of the trachea &c. With this arrangement, when used in high-altitude aircraft, oxygen pressure builds up and passes into the mask even if it is not correctly adjusted on the face so as to be actuated by inhalation of the user.