baber/WOPTO huggingface dataset:
Patent GB-524103-A (GB)
Title: An improved machine and process for crowning gear teeth
IPC: B23F19/00
Filed: 1939-01-23
Abstract: 524,103. Gear-cutting. NATIONAL BROACH & MACHINE CO. Jan. 23, 1939, No. 2211. Convention date, March 14, 1938. [Class 83 (iii)] In a method of and machine for crowning gear teeth the gear is continuously meshed with a conjugate gear-like tool member arranged on a non parallel axis inclined at less than 30 degrees either the gear or the tool being rocked about a fixed axis during the operation. The tool gear has closely spaced serrations forming cutting- edges. The frame 100 carries a table 107 which may be moved vertically, either automatically or, as shown, by a hand wheel 108. The part 103 of column 102 supports the cutter-driving motor 104 and carries a head 106 which is adjustable about a vertical axis for setting the cutter 105 according to the required helical angle. The table 107 supports a carriage 110 which may be slowly reciprocated by a motor (not shown) and automatic mechanism 111 may be provided to effect reversal. To the carriage is secured a bed plate 10 having horizontal pivots 12 for an oscillating work holder 13 on which the arbor of the work W is supported between centres. A motor 16 on the part 10 drives through reduction gearing 16a, coupling 18, shaft 19, and worm gearing a shaft carrying an eccentric 24 connected by a link 26 to one end of the work-holder so that as the eccentric rotates a slow rocking movement is imparted to the work-holder during the running of the gear and tool in mesh. The axis 12 is perpendicular to the work axis and in the vertical plane of the intersection of tool and work axes so that the ends of the work teeth are rounded off and a crowned tooth form produced. In some cases the gear and tool may be in loose mesh when in the Fig. 2 position so that they only come into close mesh at the ends of the rocking movement and only the extreme ends of the teeth are rounded off. The gears may also be crowned at one end only or in another modification, the gears may be finished by traverse of the table 110 and the ends only of the teeth crowned or rounded off by the rocking of the work carriage. Also the axis 12 may be offset from the central position so that the high portion of the crowned gear tooth will be closer to one end than the other. In the case of helical gears the axis of oscillation is preferably perpendicular to the tooth line and not to the gear axis. For this purpose the work supporting centres are carried on a plate 217 which is angularly adjustable on the tilting work support about a vertical axis 222. Adjustment is effected by worm and sector gearing 227 and the plate secured in position by bolts 224. Thus if a 30 degrees helical gear is to be finished the plate 217 is set over at an angle of 30 degrees to a perpendicular to the trunnion axis. In order to vary the radius of oscillation, shims or blocks may be provided between the tilting work holder and the plate 217. The speed of the arcuate movement of the work is preferably about 0.0001 inches per revolution.
Patent GB-1112312-A (GB)
Title: Temperature conditioning of granular material with gas
IPC: C04B7/36
Filed: 1966-01-18
Abstract: 1,112,312. Heating or cooling granular material. R E. FUTER. 18 Jan., 1966 [27 Jan., 1965], No. 2242/66. Heading F4U. Sand, cement clinker, or ground cement is fed on to a sheet metal table conveyer 11, 12 having a plurality of longitudinally spaced transverse passages 15, 16 inclined at an angle of 10 to 30 degrees, the particles being heated or cooled and simultaneously transported by gas jets blown through the passages 15, 16 from lower plenum chambers 18 and 22. The granular material G is fed from a conveyer belt 30 on to the inclined feed zone 11 above plenum chamber 18, the gas jet flow through the passages 15 accelerating the particles along the table and flash cooling them. The gas jet flow through passages 16 in the narrower conditioning zone 12 above plenum chamber 22 completes the heating or cooling, and transports the particles to a take-off conveyer belt 31 equipped with a deflector 32. The gas supply to the chambers 18, 22 is from air blower 26 through ducts 25, chamber 18 communicating with chamber 22 through a flow-controlled passageway 27. The air pressure in chamber 22 is therefore less than that in chamber 18, and the kinetic energies of the jets passing through the passages 16 are therefore less than those passing through the passages 15. In conjunction with a greater number of passages 15 provided, this therefore causes the particle residence time on conditioning zone 12 to be greater than that on feed zone 11. In modifications, the gas supply to the two plenum chambers may be from separate sources, a hood (not shown) may be provided over the table, the granular material may be fed from a hopper or shoot, and the feed zone may be flat (Fig. 4, not shown).
Patent GB-1442531-A (GB)
Title: Sterilizing apparatus
IPC: A61L2/20
Filed: 1974-01-17
Abstract: 1442531 Sterilizing apparatus SYBRON CORP 17 Jan 1974 [5 Feb 1973] 2243/74 Heading A5G Apparatus for sterilizing with a heavier-thanair gas, e.g. ethylene oxide, comprises a sterilizing chamber 12 with a gas inlet 16 near its bottom and an outlet at the top which includes a region of constriction, e.g. the chamber 28 filled with glass spheres whereby, during the feeding in of gas, an overpressure is caused in the chamber which is proportional to the density of gas in the region of constriction. Thus, whilst air is being removed, the pressure detected by guage 30 is at a "low" figure, whilst air/sterilizing gas mixture is leaving the chamber, the pressure rises; and when sterilizing gas is escaping, the pressure reaches a higher, steady level, which can be detected by the pressure gauge and used to turn off the solenoid inlet and outlet valves 20 and 26. An additional circuit comprising conduit 38 connecting outlet manifold 34 and the gas inlet conduit 14 and containing a pump P, region of constriction 40 and a pressure gauge 42 in parallel therewith, serves to detect any "dilution" of the sterilizing gas with air, e.g. by diffusion from the load, which will result in a decrease in pressure difference which may be used to initiate the introduction of further sterilizing gas.
Patent GB-1170905-A (GB)
Title: Improvements in or relating to Refrigerated Showcases or Cabinets.
Inventor: SHEPPARD JOHN JAMES ERNEST
IPC: A47F3/04
Filed: 1966-01-18
Abstract: 1,170,905. Refrigerators. BERTRAM WEBBER Ltd. 18 Jan., 1967 [18 Jan., 1966], No. 2304/66. Heading F4H. A refrigerator 7 including a compressor and other elements is secured by screws or bolts to one end of a glass display cabinet for food. The cooling coils are enclosed in casings 8, 9 formed in the lower part of shelves 10 in the cabinet. The latter has sliding glass doors 5, 6 and hinged glass flaps 1, 2.
Patent GB-284082-A (GB)
Title: Improvements in or relating to rotary feed tables
IPC: B65G47/80
Filed: 1927-01-27
Abstract: 284,082. General Electric Co., Ltd., Bullock, W., Linley, P., and Russell, C. Jan. 27, 1927. Feeding-devices for granular and like materials. -A rotary feed table comprises a horizontal rotating disc provided with discharging means circumferentially variable in position. As shown, a disc 1 rotating on a shaft 3 is provided with a stationary ring 17 carrying the feed discharge shoot 34, deflector 29, and enclosing wall 22. The position of discharge can be varied by slacking bolts 19 and rotating the ring 17. The disc 1 is rotated by fast and loose pulleys 6, 7 and worm gearing 5. The side wall is provided with a guard ring 23 to prevent powdered material from working into the journal 11 of the shaft 3. The deflector 29 is attached to a bracket 27 pivoted at 28 on a bracket 26 carried by the ring 17 and is adjustable as to its inclination by means of a screwed adjusting rod 30 and nuts 31. The rotating disc is shown as made in two parts the working surface being replaceable after wear. A lubricating device 10 is provided.
Patent GB-1136241-A (GB)
Title: Hydraulic control systems
Inventor: WILLIAMS DERRICK GEOFREY
IPC: F15B13/01
Filed: 1965-01-20
Abstract: 1,136,241. Shovel excavators. MASSEY FERGUSON-PERKINS Ltd. 7 Jan., 1966 [20 Jan., 1965], No. 2586/65. Heading E1F. [Also in Division F1] A first hydraulic actuator 75 Fig. 5 for clamping a movable support means for one or more further actuators 20, 23, 29, Fig. 1, is controlled by a two-position spool valve 95, Fig. 4, referred to as a hydraulic locking unit and having a chamber 112 open to supply pressure and connected in series with three-position spool valves 87, 89, 90 associated with actuators 20, 23, 29, and a check valve 110 which when any one valve 87, 89, 90 is positioned to pressurise any one actuator 20, 23, 29 is opened by the pressure build-up in chamber 112 to increase the clamping pressure in actuator 75 to that of said further actuator. The valve 95 comprises galleries 98, 101, 102, 105, continuously connected to sump, galleries 100, 103 open to chamber 112 and galleries 99, 104 which are connected to supply chamber 112 and sump gallery 105 respectively when the valve spool 97 is in its working position shown and to sump gallery 106 and supply chamber 112 when the spool is in its raised neutral position. In this latter position supply pressure in gallery 104 lifts a shuttle piston 114 to open check valve 110 and thus relieve clamping pressure fluid through galleries 98, 99 to sump. Actuators 20, 23, 29 operate a digger boom 18, a dipper stick 22 and a bucket 27 respectively and are supported by a swivel post 15 secured to a bracket 57, Fig. 3, slidably mounted on upper and lower horizontal guide ways 42, 45 rigidly secured to and extending across horizontal members 40, 41 of an upright frame 10 supported by hydraulic stabilizer legs 31. At the lower end bracket 57 has a pair of laterally spaced lugs 63 each defining a rectangular open-ended slot 64 Fig. 3A in which is slidably received a locking plate 72 pivoted at 77 to the lower end of an associated clamping jock 75 having its upper end pivoted at 76 to the bracket 57. In the unclamped position the lugs 63 rest on a block 66 carried by crossmember 41 and on pressurizing the jacks 75, an inclined surface 73, on plate 72 abuts a corresponding surface 47 on bracket 57 resulting in the bracket and post assembly being lifted until an upper inclined surface on a projection 71 of bracket 57 abuts a corresponding surface 44 of cross member 40, and vertical surfaces 43, 46 of the frame tightly abut surfaces 60, 61 of bracket 57.
Patent GB-414585-A (GB)
Title: Improvements in a lamp
IPC: F21V17/16
Filed: 1934-01-27
Abstract: 414,585. Vehicle &c. lamps. JOHNSON, R. W., 14, Fleming Road, Wyoming, Cincinnati, Ohio, U.S.A. Jan. 27, 1934, No. 2871. [Classes 75 (ii) and 75 (iv).] A vehicle or like lamp comprises a lens or like closure 13 having a shoulder 14 spaced from its rim 15, the sizes of the shoulder and rim being respectively substantially equal to and slightly greater than that of an opening in the front 12 of a lamp casing 11 made of resilient metal and provided interiorly with resilient means which retain the shoulder in engagement with the opening but permit the closure to be moved inwards to withdraw the shoulder from the opening so that the casing may be distorted to change the opening and permit withdrawal of the closure through the changed opening. The opening, closure, and shoulder are preferably circular, the changed opening being elliptical, and the closure may or may not be fitted with a separate mounting ring or band. In the form shown, the rim 15 bears against a packing ring 17 in a groove 18 formed at the rim of the reflector 16, and the rear of this groove engages a ring 19 carrying a number of spaced helical or other springs 20 which seat against a flange 22 on a ring 21. The lens may be correctly located with reference to the casing by providing it with a lug adapted to engage a correspondingly shaped notch in the casing.
Patent GB-757361-A (GB)
Title: New monoazo dyestuffs of the benzene-azo-benzene series
Inventor: JOHNSON ERIC LESLIE
IPC: C09B62/825
Filed: 1954-02-01
Abstract: N - n - Hexyl - N - b  - hydroxyethyl - m - trifluoromethylaniline sulphonic acid ester is made by sulphating the corresponding b -hydroxyethyl compound, e.g. with chloro-sulphonic acid in ethylene dichloride, the b -hydroxyethyl compound being made either by reacting N-b -hydroxyethyl - m - trifluoromethylaniline with n-hexyl bromide or by treating N-n-hexyl-m-trifluoromethylaniline with ethylene chlorhydrin in the presence of acid binding agents. N - b  - Hydroxyethyl- and -n - hexyl - m - tri - fluoromethylaniline are made by treating m-aminobenzotrifluoride with ethylene chlorhydrin and n-hexyl bromide respectively.  3 - Chloro - 4 - aminobenzonitrile and 2 - amino - 5-cyanobenzotrifluoride are obtained by reducing the corresponding nitro compounds.  The products are dyestuff intermediates (see Group IV (c)).  Specification 756,079 is referred to.ALSO:The invention comprises dyestuffs which in the form of their free acids are of formula:- <FORM:0757361/IV(c)/1> where X is halogen or a trifluoromethyl group, #U is H or halogen, z is H or halogen or a methyl or trifluoromethyl group, R1 is - CH2CH2CSO3H or - CH2CH2CH2OSO3H and R2 is an alkyl group of 1-6 C atoms or a b  - phenyl - or - phenyloxy - ethyl group whose phenyl nuclei may be substituted except with sulphonic or carboxylic acid groups.  They may be made either by sulphating, e.g. with sulphuric acid, or with chlorosulphonic acid in ethylene dichlorides, the corresponding dyestuffs in which R1 is - CH2CH2OH or - CH2CH2CH2OH or by diazotizing the appropriate p - aminobenzonitrile and coupling with the desired end component. Dyestuffs in which R1 is a hydroxy - ethyl or - propyl group are made by diazotizing and coupling the appropriate p - aminobenzonitrile with the necessary end component. The dyestuffs dye cellulose acetate rayon and polyamides, e.g. nylon, in orange to red shades.  In examples the amines used for diazotization are 2 - chloro - and 3, 5 - dichloro - 4 - aminobenzonitrile and 2 - amino - 5 - cyano - benzotrifluoride, and the coupling components are N - n - hexyl - N - b  - hydroxyethyl aniline and m - trifluoro - methyl - aniline sulphonic acid esters, N - b  - hydroxyethyl - N - b 1 - phenylethyl - m - toluidine, - b 1 - phenoxyethyl - m - chloroaniline and - b 1 - (p - chlorophenoxyethyl) - aniline - sulphuric acid esters and N - ethyl - N - g  - hydroxypropyl aniline the use of the last component necessitating sulphation.  Specification 756,079 is referred to.
Patent GB-895548-A (GB)
Title: Improved forced-air refrigerator
IPC: F25D17/06
Filed: 1961-01-25
Abstract: 895,548. Refrigerators. GENERAL MOTORS CORPORATION. Jan. 25, 1961 [Jan. 25, 1960], No. 2911/61. Class 29. In a forced-air refrigerator a one-piece moulded synthetic plastic member 64 co-operates with the back inner liner 40 of the cabinet to define, together with ribs 68, 70 and 72, three pairs of ducts 74, 76 and 78 having openings to the storage compartment at different levels. A machine compartment 24 at the base of the refrigerator houses a drain pan 30 and a sealed motor-compressor unit 26 supplying outside condenser 28 and evaporator 46 which is located beneath the bottom wall 62 of the storage compartment. Fan 52 draws air through openings 48 in the lower jamb 50 of the door 125, over the evaporator and through an opening 55 in a discharge shroud 56 to supply forward and side openings 86, 90 in ducts 78, similar openings 92, 94 in ducts 76 and forward side and top openings 98, 123 and 121 in ducts 74. The openings are of successively larger area in ascending order. A magnetic type of gasket seal 127 is provided around the door edge and to prevent sub-atmospheric pressure conditions inside the compartment there is a passage 131 in the bottom of the door 125 extending from a bottom opening 133 to an opening 135 into the space between the door and the bottom door jamb 50. A rubber flap valve 137 normally covers apertures in a plate 139 over opening 133 but lifts to allow air into the compartment when sub-atmospheric pressures prevail. A seal 145 is provided on the front of the door jamb 50 around the sides and bottom edge of the inlet openings 48.
Patent GB-296627-A (GB)
Title: Improvements in apparatus for displaying garments or the like
IPC: A47F7/26
Filed: 1928-01-30
Abstract: 296,627. Pollard, H. E., and Pollard & Co., Ltd., E. Jan. 30, 1928. Catches, automatic. - In a cabinet having a display stand mounted to be drawn forwards for inspection of the goods thereon, and of the kind fitted with sliding doors lying parallel to the sides of the cabinet when opened, interconnected catches are fitted to the doors and stand so that the latter cannot be moved until the doors are fully opened, nor can the doors be closed until the stand is fully housed. The catches comprise hooked levers h, m on a common pivot bar i which engage latch plates f on the doors and a catch k on the slide bearing the stand d respectively. When the doors are fully opened a ramp j beyond the hook of the door catch causes the levers to tilt freeing the catch k so that the slide can be withdrawn. Similarly on returning the slide to its fully housed position the catch k lifts the lever m rocking the bar i and freeing the door catch k. The arrangement can be modified to suit single or double doors and the pivot rod and lever or levers for the slide may be placed below the floor of the cabinet. Specification 288,394, [CLass 3 (ii), Advertising &c. other than by moving &c.], is referred to.
Patent GB-660048-A (GB)
Title: Improvements in or relating to aquaria
IPC: A01K63/00
Filed: 1949-02-03
Abstract: 660,048. Fish tanks. COTTON, W. H. Feb. 2, 1950 [Feb. 3, 1949], No. 2940/49. Class 48. To reduce heat losses, a metal or like aquarium a having a glass side b is housed in a larger casing d of heat-insulating material so that an air space f, h is provided between the unglazed walls of the aquarium and the adjacent walls of the casing. As shown the aquarium is mounted so that its glass side fits against and forms an airtight seal with an opening in one side of the casing d, the latter being formed of asbestos cement panels supported in a skeleton metal frame e. The airspace h below the bottom of the aquarium is made large enough to house heating means such as the electric lamp j shown or other electric, gas or oil heaters. The top of the casing and aquarium is covered by a glass sheet m which rests on blocks n and may support a removable hollow cover p housing a lamp q (not shown).
Patent GB-538841-A (GB)
Title: Improvements in thread-winding machines
IPC: B65H54/54
Filed: 1940-02-16
Abstract: 538,841. Winding thread. BRITISH CELANESE, Ltd. Feb. 16, 1940, No. 2960. Convention date, Feb. 21, 1939. [Class 120 (ii)] In a thread-winding machine in which the bobbin is carried in a pivoted bracket and driven by contact with a rotating drum, a latch carried by the bracket or fixed with reference to the pivot thereof is adapted to engage a catch fixed with reference to the pivot or carried by the bracket when the bracket is swung away from the drum so as to hold the bobbin clear of the drum and a masking member, disposed alongside the catch with a limited motion with respect thereto, has two oppositely inclined edges one of which is engaged by the latch to carry the masking member to one end of its motion as the bracket is swung away from the drum and lifting the latch when the bracket is swung beyond the point of engagement of the latch and catch, the latch then engaging the other inclined edge and, on the swinging of the bracket towards the drum, carrying the masking member to the other end of its limited motion, riding up the edge clear of the catch, and down the first edge so as to leave the bracket free to approach the friction drum. As shown the latch 46 is pivoted in a slot in a boss 17 of the bracket 19, 21 carrying the bobbin 29 and the catch is in the form of a collar 34 fixed to the shaft 14 on which the bracket is pivoted, the masking member 36 being rotatably mounted on a hub 55 of the collar and having a slot 43 engaging a pin 41 projecting from the collar ; a pair of latches and members 36 are arranged at each side of the catch collar to serve two bobbin brackets. When a bobbin is to be removed from contact with the driving drum, the bracket is lifted until the end 47 of the latch lever is forced by the spring 48 into a catch notch 37 in the collar, the bobbin then being held away from the drum and the member 36 being carried around by the pressure of the lever against the inclined edge 57 of the masking member. The bracket may be lifted until the lever rides over the edge 57 and into a catch notch 38 in the collar, the bracket being then held vertically above the shaft 14 and by disengaging the arm 19 from the end 27 of the bobbin spindle 25, the bobbin may be removed from its bracket. When an empty bobbin has been secured on the bobbin spindle and the bracket lowered, the end of the latch lever 47 moves up the edge of the notch 38 and, pressing against the inclined edge 58 of the member 36, carries the member so that the portion 52 between the two inclined edges masks the notch 37 and allows the latch lever to slide past it and carry the member 36 back to its original position.
Patent GB-250355-A (GB)
Title: Improvements in or relating to box covering or box forming and covering machines
IPC: B31B15/00
Filed: 1925-02-02
Abstract: 250,355. Stokes & Smith Co., Federwitz, T. A., and Bailey, W. T. Feb. 2, 1925. Gearing for starting and stopping machinery.-The cam 38 of a machine for forming and covering boxes is driven by worm gearing 5, 7 from a pulley 15 through a cone friction clutch and a one revolution clutch, the cone clutch comprising a member 14 splined on the worm-shaft 7 and forced against the 'driven member or pulley 15 by a spring 20, the member 14 being moved to disengage the clutch by a yoke 17 carried by a rod 18 slidable in a bracket 19 and having a head confined within a sleeve 25 secured to a shaft 26; pins on the face of the bracket 19 normally engage recesses in the adjacent face of the sleeve, but on the shaft 26 being rotated by lever and link connections from a pedal or hand lever, the sleeve and shaft are forced longitudinally, thus sliding the rod 18 to disengage the clutch. The worm-wheel 5 drives the cam 38 through the one-revolution clutch comprising a semi-cylindrical pawl 41 rotatable in a recess in the cam and having an arm 42 drawn by a spring 43 to rotate the pawl into engagement with one of the teeth of an internallytoothed ring carried by the worm-wheel. The pawl is rotated to disengage it from the ring and declutch the cam at the end of a revolution by contact with a yielding stop 44 carried by a support 50, a lug 45 on the cam then engaging the stop and preventing further rotation of the cam, which is prevented from backward movement by a latch 46 carried by the support 50 and forced by a spring 47 into engagement with the rear side of the lug 45. The support 50 is rotated to withdraw the stop 44 from the path of the pawl arm 43 to start or to re-engage the mechanism by depressing against spring action a pedal which, through link and lever connections, rotates the shaft 51 carrying the support : the pedal is pivoted to its actuating-lever and is formed with a latch which may be engaged with the foot rest to lock the pedal in the depressed condition and allow the cam to rotate continuously. Specification 249,967, [Class 18, Boxes &c.], is referred to.