Category: Knowledge

A drum brake shoe has a rim providing a lining support plate, the rim edges being formed with projections and recesses on either side of a center section. The width of the rim is substantially constant throughout the majority of its arcuate length. The arrangement permits the stamping of nested rim blanks, each blank extending transversely across a sheet, with approximately 25 percent less material used than would be the case if the rims were made of full constant width to support the entire brake lining. The brake lining is attached to the outer surface of the rim and is directly supported by the rim center section and the projections extending laterally therefrom. The lining is unsupported in the areas where it extends over the recesses. The projections and recesses may be generally rectangular or curvilinear.

What is claimed is:

1. A brake shoe comprising a brake lining support plate having a length greater than its width, a center section extending throughout the length thereof, and side sections extending laterally from either side of said center section, said side sections having edges defining with respect to said center section laterally extending recesses and projections along the length of said support plate with each recess on one side of said center section being laterally aligned and complementary with a corresponding projection on the other side of said center section so that the width of said support plate at each point along the length thereof including said center and side sections is substantially constant, the projections on both sides of said center section defining a side-to-side projected width greater than the substantially constant width of said support plate; and a brake friction lining secured to said support plate and having a width substantially equal to said plate projected width, the center section of said support plate and the projections on both sides of said center section providing surface contact support for those portions of said brake friction lining which are adjacent thereto while other portions of said brake friction lining which are adjacent to said recesses on both sides of said center section remain without surface contact support throughout the useful life of said brake friction lining.

2. A brake shoe having a lining material support plate formed from flat stock and defined in part by spaced parallel edges on either side of a center line, said edges being formed with recesses and projections with the recesses of each edge positioned laterally opposite similarly shaped projections of each other edge so that the width between said edges is substantially constant but laterally displaced relative to said center line in accordance with the locations of said recesses and projections, and brake lining material secured to one surface of said plate and covering a plurality of said projections and recesses on each side of said center line so that said brake lining material is supported for brake actuation by said plate with the brake lining material portions covering said recesses having no surface engaging support by said plate.

3. A brake shoe mounting support plate formed from flat stock and having opposed ends, opposed sides, and opposed face surfaces, one of said face surfaces being adapted to have brake friction material secured thereto; said opposed sides having laterally defined recesses and projections alternately spaced along the lengths thereof and adapted to be in nesting relation with the sides of other similarly constructed shoe rims, the width of said face surfaces between said opposed sides being substantially constant.

This article comes from FPO edit released

 

Constructed of 14 gauge steel, single tier vented lockers offer visibility and maximum air flow with ample space for personal storage needs. These durable lockers are available in a gray, tan or blue finish. Ideal for schools or the workplace, single tier vented lockers can be delivered UNASSEMBLED or ASSEMBLED.

Standard Width Lockers: 12″ Wide

Constructed of 14 gauge steel, 71000 series single tier vented lockers are 12″ wide, have an overall height of six feet and are available in 12″, 15″ and 18″ depths. Single tier vented lockers feature a lift up handle and recessed hasp and can accommodate a built-in combination or key lock or a padlock. Built-in locks, padlocks, end bases, front bases and sloping hoods are available as options upon request. All single tier vented lockers feature an adjustable hat shelf, three single wall hooks and one double ceiling hook. The 18″ deep lockers also include a coat rod that can accommodate garments.

Extra Wide Lockers: 15″ Wide

Constructed of 14 gauge steel, 81000 series extra wide single tier vented lockers are 15″ wide, have an overall height of six feet and are available in 15″ and 18″ depths. Extra wide single tier vented lockers feature a lift up handle and recessed hasp and can accommodate a built-in combination or key lock or a padlock. Built-in locks, padlocks, end bases, front bases and sloping hoods are available as options upon request. All extra wide single tier vented lockers feature an adjustable hat shelf and three single wall hooks. The 18″ deep lockers also include a coat rod that can accommodate garments.

This article comes from lockers depot edit released

 

Main Service

• Sheet Metal Cutting
• Sheet Metal Stamping
• Sheet Metal bendin
• Sheet Metal Drawing
• Metal Welding
• Carbon steel sheet fabrication
• Stainless steel sheet fabrication
• Aluminium sheet fabrication;
• Copper sheet fabrication;
• … …

We can do metal sheet fabrication with technology stamping,CNC cutting,CNC punching,CNC bending,etc…

We can do: Carbon metal sheet fabrication;Stainless Steel Fabrication;High Quality Metal Forming;Metal Stamping;Metal Enclosures;Stainless Metal Forming;Aluminium sheet fabrication;Copper Sheet fabrication. We can stamp,punch,bend and weld metal sheet.

We are utilizing the latest equipment available in the industry, such as water jet, laser and other cutting edge technology. Coupled with heavy plate capabilities and certified welding services, we are proud to bring you good service to custom sheet metal fabrication. From high volume production to prototypes, no job is too big or too small.

If you have sample or drawing which want to be customed to produce metal products, just send it to us, we will study it and quote to you. Just submit the right buttom to contact us, and we will reply you within 24 hours.

We also provide precision stamping and cutting service. Providing complete solution for high quality custom sheet metal fabrication, assembly and finishing. We take pride in working closely with our customers in order to provide the highest level of service. We combine our vast knowledge and expertise with state of the art equipment and software to produce products quickly, efficiently, and at competitive prices.

This article comes from MetalHelper edit released

 

1. A railway vehicle brake shoe having a self lubricating material incorporated therein, said railway vehicle brake shoe comprising:

(a) a friction matrix material present in said brake shoe in a range of between about 75.0 weight percent and about 80.0 weight percent, said friction matrix material including;

(i) fibers selected from the group consisting of mineral fibers, organic fibers and mixtures thereof, said fibers are present in said friction matrix material in a range of between about 24.0 weight percent and about 32.0 weight percent,

(ii) inorganic fillers selected from the group consisting of zinc oxide, calcium carbonate, clay, barytes, fluorspar, sodium carbonate, silica, surfactants and mixtures thereof, said inorganic fillers are present in said friction matrix material in a range of between about 9.0 weight percent and about 15.0 weight percent,

(iii) organic fillers and binders selected from the group consisting of friction dust, elastomer modified cashew friction particles, carbon black, graphite, carbon fines, oils, acrylonitrile rubber, styrene-butadiene, curable phenolic resin and mixtures thereof, said organic fillers and binders are present in said friction matrix material in a range of between about 50.0 weight percent and about 65.0 weight percent, and

(iv) crosslinking agents selected from the group consisting of sulfur, hexamethylenetetramine, accelerators, activators and mixtures thereof, said crosslinking agents are present in said friction matrix material in a concentration of less than about 1.0 weight percent; and

(b) a self lubricating material present in said brake shoe in a range of between about 20.0 weight percent and about 25.0 weight percent, said self lubricating material including;

(i) a cellulose, said cellulose being present in said self lubricating material in the range of between about 4.0 weight percent and about 9.0 weight percent;

(ii) a resin, said resin being present in said self lubricating material in the range of between about 15.0 weight percent and about 20.0 weight percent;

(iii) vermiculite, being present in said self lubricating material in the range of between about 20.0 weight percent and about 25.0 weight percent;

(iv) nut shells, said nut shells being present in said self lubricating material in a range of between about 12.0 weight percent and about 20.0 weight percent;

(v) fluorspar, said fluorspar being present in said self lubricating material in a range of between about 11.0 weight percent and about 14.0 weight percent; and

(vi) an oil, said oil being present in said self lubricating material in the range of between about 20.0 weight percent and about 26.0 weight percent.

2. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 1, wherein said friction matrix material is present in said railway vehicle brake shoe generally in a range of between about 77.0 weight percent and about 79.0 weight percent.

3. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 1, wherein said fibers present in said friction matrix material are a mixture of said mineral fibers and said organic fibers.

4. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 3, wherein said mineral fibers are present in said mixture of said fibers generally in a range of between about 14.0 weight percent and about 18.0 weight percent.

5. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 1, wherein said inorganic fillers are present in said friction matrix material generally in a range of between about 12.0 weight percent and about 14.0 weight percent.

6. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 1, wherein said organic fillers are present in said friction matrix material generally in a range of between about 33.0 weight percent and about 37.0 weight percent and said binders are present in said friction matrix material generally in a range of between about 22.0 weight percent and about 25.0 weight percent.

7. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 6, wherein said organic fillers and said binders are present in said friction matrix material generally in a range of between about 57.0 weight percent and about 61.0 weight percent.

8. A railway vehicle brake shoe having a self lubricating material incorporated therein, according to claim 2, wherein said self lubricating material is present in said railway vehicle brake shoe generally in a range of between about 21.0 weight percent and about 23.0 weight percent.

This article comes from FPO edit released

 

Nettuno landing door is the perfect solution to take in when it is not possible to fit the operator over the car roof. Example of such exigencies are trade centres, metro stations, airports.

The mechanism is positioned in the lower side and this opens up a lots of new installation possibilities.

Advantages:

• Ideal solution for prestigious and panoramic installations
• Available in panoramic version with glass panels or glass-framed panels
• Tempered full glass panels
• It’s manufactured in two versions, two and four panels, with a clear opening of 600 mm up to 2600 mm
• Maximum height 2500 mm
• It’s coupled to Nettuno operator

Fire-resistant landing door:

• Fire-resistant landing door

Panels and frames finishings

• Prime finish painted sheet (RAL 7032)
• Stainless Steel
• Anodized aluminium
• Coloured aluminium
• Prepainted aluminium
• Extruded aluminium
• Plasticized sheet
• Plastic laminate
• Hammered paint
• RAL smooth painting

This article comes from WITTUR edit released

As our business grew, we made a commitment to meet increased demand by installing equipment to perform our laser cutting, metal fabrication, welding and powder coating in house.

We are experienced metal techs manufacture blower units, impellers, belt drive units, PTO drive units, special airflow & baffle systems, safety counter weight systems, plus a variety of individual metal parts large and small.

Our dedicated metal fabrication technicians include certified welders, experienced fabricators and finishers. QC inspection assures critical parameters as defined by our customers are met.

Our production capabilities include: laser cut sheet and plate, pipe and square tube bending, welding, powder coating, metal shearing (angle, barstock and pipe), sawing, rolling, assembly and jig weldments.

We stand ready to quote, produce and deliver your needs.

This article comes from HUMBOLDT SPECIALTY edit released

 

U-boat Platform Truck  advantage
Narrow truck maneuvers easily in tight aisles and spaces.
Transport small packages in warehouses, grocery aisles and stockrooms.
Tall, removable end panels keep loads from sliding off.
All-welded steel diamond tread deck.
2 rigid 8″ load casters, 4 swivel 4″ casters.
Additional Shelves – Slip onto end panels. No screws needed.

This article comes from ULINE edit released

The control function of the parallel hydraulic elevator control cabinet is implemented by our parallel elevator control board. The control cabinet applies full parallel communication and is suitable for low-rise hydraulic driven cargo elevators.

Technical Parameters
Power requirement: 3 phase, AC380V-460V, 50/60Hz
Power range: 5KW-75kW
Maximum elevator speed: 1.0m/s
Number of floors: 5
Hydro-cylinder applicable: MCP-PYGM, GMV; MCP-PYBL, Belling
Main controller: SM-01-DPC
Drive mode: Star Delta Starter
Landing accuracy: ±5mm
Performance standard: GB7588/EN-81
Safety standard: JG5071-1996
Room temperature: -10℃-45 ℃
Color: light grey (optional)
Display mode: Seven segment code, BCD code, Gray code, Binary code
Dimension (mm): 1300×750×280

Standard Interface Description
Power interface: terminal
Adaptive electro motor: AC asynchronous motor
Door motor: AC220V variable frequency door motor
Machine room switches: speed governor / control cabinet stop switch / emergency electric operation switch / overhaul up button / overhaul down button
Hoistway switches: limit switch / buffer switch / broken step chain device / pit stop switch / speed reducing switch
Ceiling assembling switches: cab stop switch / ceiling assembling stop switch / safety gear / leveling switch / overload, full load, light load switch / light curtain switch / safety shoe switch
Illumination: AC220V (ceiling assembling, pit) / AC36V (ceiling assembling)
Intercom system: five-way calling system (four wire system)
Control cable interface: AMP plug-in plus binding post
Option configuration interface: arrival gong (electronic), arrival lamp, 6-layer to 10-layer control panel
Trailing cable: TVVBP**/**×0.75+2×2P×0.75+1×2.0 (equipped by function and floor)
Call cable: 4-core round cable/RVV4/2×2×0.75
Door lock cable: 3-core round cable/RVV3/2×0.75+1×2.0
Monitor cable: 12-core round cable/RVV12/11×0.75+1×2.0 (seven segment code for this model, other models depend on needs)
Hoistway switch cable: 19-core round cable/RVV19/18×0.75+1×2.0
Speed limit cable: 3-core round cable/RVV3/2×0.75+1×2.0
We provide an extensive line of products, including elevator control cabinet, car controller board, fan inverter, general vector inverter, and more.
This article comes from STEP edit released

 

Brake Caliper Kit Operation:

A rebuild kit for a disc brake caliper that consists of a piston seal and dust boot.

Inspect- Check for obvious problems

Some calipers have inspection holes in the caliper body. If they do not, the brake pads can be visually inspected from the outer ends of the caliper.

Floating Caliper: On a floating caliper, examine the mounting pins for rust that could limit travel. Most manufacturers recommend that these pins and their bushings be replaced each time the caliper is removed.

Fixed Caliper: On a fixed caliper, check the pistons for sticking and rebuild the caliper if this problem is found.

Sliding Caliper: Some sliding calipers use a support key to locate and support the caliper in the anchor plate.

A sliding caliper with suport plates (keys).

The caliper support key is inserted between the caliper and the anchor plate. A worn support key may cause tapered brake pad wear. Always inspect the support keys when replacing brake pads.

This article comes from Auto Zone edit released

 

Description

Practical Economical Storage Cabinets house office products, maintenance and janitorial supplies, and other lightweight items. 1X9T7836 gauge steel cabinets. Shelves adjust on 2″ centers. Welded door frame ensures proper door alignment. Doors swing open a full 180 degrees and include a locking handle with 2 keys. Three point lock. Tough powder coat finish.

Specification

Color	Gray
Construction	Unassembled
Country of Origin	Made in China
Description	Cabinet
Manufacturer	XINGYI GROUP
Manufacturer Part Number	1X9T7836
Material	Steel
Overall Depth (in.	18.00
Overall Height (in.)	42.00
Overall Width (in.)	36.00
Overall WxDxH	36x18x42″
Shelf Cap. Lbs.	175
Shelf Openings	5
Thickness Gauge	20-24

This article comes from C & H edit released